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 find_all_references_task_sources: Vec<Anchor>,
399 next_completion_id: CompletionId,
400 completion_documentation_pre_resolve_debounce: DebouncedDelay,
401 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
402 code_actions_task: Option<Task<()>>,
403 document_highlights_task: Option<Task<()>>,
404 pending_rename: Option<RenameState>,
405 searchable: bool,
406 cursor_shape: CursorShape,
407 collapse_matches: bool,
408 autoindent_mode: Option<AutoindentMode>,
409 workspace: Option<(WeakView<Workspace>, i64)>,
410 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
411 input_enabled: bool,
412 use_modal_editing: bool,
413 read_only: bool,
414 leader_peer_id: Option<PeerId>,
415 remote_id: Option<ViewId>,
416 hover_state: HoverState,
417 gutter_hovered: bool,
418 hovered_link_state: Option<HoveredLinkState>,
419 copilot_state: CopilotState,
420 inlay_hint_cache: InlayHintCache,
421 next_inlay_id: usize,
422 _subscriptions: Vec<Subscription>,
423 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
424 gutter_width: Pixels,
425 style: Option<EditorStyle>,
426 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
427 show_copilot_suggestions: bool,
428 use_autoclose: bool,
429 auto_replace_emoji_shortcode: bool,
430 custom_context_menu: Option<
431 Box<
432 dyn 'static
433 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
434 >,
435 >,
436}
437
438pub struct EditorSnapshot {
439 pub mode: EditorMode,
440 show_gutter: bool,
441 pub display_snapshot: DisplaySnapshot,
442 pub placeholder_text: Option<Arc<str>>,
443 is_focused: bool,
444 scroll_anchor: ScrollAnchor,
445 ongoing_scroll: OngoingScroll,
446}
447
448pub struct GutterDimensions {
449 pub left_padding: Pixels,
450 pub right_padding: Pixels,
451 pub width: Pixels,
452 pub margin: Pixels,
453}
454
455impl Default for GutterDimensions {
456 fn default() -> Self {
457 Self {
458 left_padding: Pixels::ZERO,
459 right_padding: Pixels::ZERO,
460 width: Pixels::ZERO,
461 margin: Pixels::ZERO,
462 }
463 }
464}
465
466#[derive(Debug)]
467pub struct RemoteSelection {
468 pub replica_id: ReplicaId,
469 pub selection: Selection<Anchor>,
470 pub cursor_shape: CursorShape,
471 pub peer_id: PeerId,
472 pub line_mode: bool,
473 pub participant_index: Option<ParticipantIndex>,
474 pub user_name: Option<SharedString>,
475}
476
477#[derive(Clone, Debug)]
478struct SelectionHistoryEntry {
479 selections: Arc<[Selection<Anchor>]>,
480 select_next_state: Option<SelectNextState>,
481 select_prev_state: Option<SelectNextState>,
482 add_selections_state: Option<AddSelectionsState>,
483}
484
485enum SelectionHistoryMode {
486 Normal,
487 Undoing,
488 Redoing,
489}
490
491#[derive(Clone, PartialEq, Eq, Hash)]
492struct HoveredCursor {
493 replica_id: u16,
494 selection_id: usize,
495}
496
497impl Default for SelectionHistoryMode {
498 fn default() -> Self {
499 Self::Normal
500 }
501}
502
503#[derive(Default)]
504struct SelectionHistory {
505 #[allow(clippy::type_complexity)]
506 selections_by_transaction:
507 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
508 mode: SelectionHistoryMode,
509 undo_stack: VecDeque<SelectionHistoryEntry>,
510 redo_stack: VecDeque<SelectionHistoryEntry>,
511}
512
513impl SelectionHistory {
514 fn insert_transaction(
515 &mut self,
516 transaction_id: TransactionId,
517 selections: Arc<[Selection<Anchor>]>,
518 ) {
519 self.selections_by_transaction
520 .insert(transaction_id, (selections, None));
521 }
522
523 #[allow(clippy::type_complexity)]
524 fn transaction(
525 &self,
526 transaction_id: TransactionId,
527 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
528 self.selections_by_transaction.get(&transaction_id)
529 }
530
531 #[allow(clippy::type_complexity)]
532 fn transaction_mut(
533 &mut self,
534 transaction_id: TransactionId,
535 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
536 self.selections_by_transaction.get_mut(&transaction_id)
537 }
538
539 fn push(&mut self, entry: SelectionHistoryEntry) {
540 if !entry.selections.is_empty() {
541 match self.mode {
542 SelectionHistoryMode::Normal => {
543 self.push_undo(entry);
544 self.redo_stack.clear();
545 }
546 SelectionHistoryMode::Undoing => self.push_redo(entry),
547 SelectionHistoryMode::Redoing => self.push_undo(entry),
548 }
549 }
550 }
551
552 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
553 if self
554 .undo_stack
555 .back()
556 .map_or(true, |e| e.selections != entry.selections)
557 {
558 self.undo_stack.push_back(entry);
559 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
560 self.undo_stack.pop_front();
561 }
562 }
563 }
564
565 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
566 if self
567 .redo_stack
568 .back()
569 .map_or(true, |e| e.selections != entry.selections)
570 {
571 self.redo_stack.push_back(entry);
572 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
573 self.redo_stack.pop_front();
574 }
575 }
576 }
577}
578
579#[derive(Clone, Debug)]
580struct AddSelectionsState {
581 above: bool,
582 stack: Vec<usize>,
583}
584
585#[derive(Clone)]
586struct SelectNextState {
587 query: AhoCorasick,
588 wordwise: bool,
589 done: bool,
590}
591
592impl std::fmt::Debug for SelectNextState {
593 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
594 f.debug_struct(std::any::type_name::<Self>())
595 .field("wordwise", &self.wordwise)
596 .field("done", &self.done)
597 .finish()
598 }
599}
600
601#[derive(Debug)]
602struct AutocloseRegion {
603 selection_id: usize,
604 range: Range<Anchor>,
605 pair: BracketPair,
606}
607
608#[derive(Debug)]
609struct SnippetState {
610 ranges: Vec<Vec<Range<Anchor>>>,
611 active_index: usize,
612}
613
614#[doc(hidden)]
615pub struct RenameState {
616 pub range: Range<Anchor>,
617 pub old_name: Arc<str>,
618 pub editor: View<Editor>,
619 block_id: BlockId,
620}
621
622struct InvalidationStack<T>(Vec<T>);
623
624enum ContextMenu {
625 Completions(CompletionsMenu),
626 CodeActions(CodeActionsMenu),
627}
628
629impl ContextMenu {
630 fn select_first(
631 &mut self,
632 project: Option<&Model<Project>>,
633 cx: &mut ViewContext<Editor>,
634 ) -> bool {
635 if self.visible() {
636 match self {
637 ContextMenu::Completions(menu) => menu.select_first(project, cx),
638 ContextMenu::CodeActions(menu) => menu.select_first(cx),
639 }
640 true
641 } else {
642 false
643 }
644 }
645
646 fn select_prev(
647 &mut self,
648 project: Option<&Model<Project>>,
649 cx: &mut ViewContext<Editor>,
650 ) -> bool {
651 if self.visible() {
652 match self {
653 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
654 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
655 }
656 true
657 } else {
658 false
659 }
660 }
661
662 fn select_next(
663 &mut self,
664 project: Option<&Model<Project>>,
665 cx: &mut ViewContext<Editor>,
666 ) -> bool {
667 if self.visible() {
668 match self {
669 ContextMenu::Completions(menu) => menu.select_next(project, cx),
670 ContextMenu::CodeActions(menu) => menu.select_next(cx),
671 }
672 true
673 } else {
674 false
675 }
676 }
677
678 fn select_last(
679 &mut self,
680 project: Option<&Model<Project>>,
681 cx: &mut ViewContext<Editor>,
682 ) -> bool {
683 if self.visible() {
684 match self {
685 ContextMenu::Completions(menu) => menu.select_last(project, cx),
686 ContextMenu::CodeActions(menu) => menu.select_last(cx),
687 }
688 true
689 } else {
690 false
691 }
692 }
693
694 fn visible(&self) -> bool {
695 match self {
696 ContextMenu::Completions(menu) => menu.visible(),
697 ContextMenu::CodeActions(menu) => menu.visible(),
698 }
699 }
700
701 fn render(
702 &self,
703 cursor_position: DisplayPoint,
704 style: &EditorStyle,
705 max_height: Pixels,
706 workspace: Option<WeakView<Workspace>>,
707 cx: &mut ViewContext<Editor>,
708 ) -> (DisplayPoint, AnyElement) {
709 match self {
710 ContextMenu::Completions(menu) => (
711 cursor_position,
712 menu.render(style, max_height, workspace, cx),
713 ),
714 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
715 }
716 }
717}
718
719#[derive(Clone)]
720struct CompletionsMenu {
721 id: CompletionId,
722 initial_position: Anchor,
723 buffer: Model<Buffer>,
724 completions: Arc<RwLock<Box<[Completion]>>>,
725 match_candidates: Arc<[StringMatchCandidate]>,
726 matches: Arc<[StringMatch]>,
727 selected_item: usize,
728 scroll_handle: UniformListScrollHandle,
729 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
730}
731
732impl CompletionsMenu {
733 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
734 self.selected_item = 0;
735 self.scroll_handle.scroll_to_item(self.selected_item);
736 self.attempt_resolve_selected_completion_documentation(project, cx);
737 cx.notify();
738 }
739
740 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
741 if self.selected_item > 0 {
742 self.selected_item -= 1;
743 } else {
744 self.selected_item = self.matches.len() - 1;
745 }
746 self.scroll_handle.scroll_to_item(self.selected_item);
747 self.attempt_resolve_selected_completion_documentation(project, cx);
748 cx.notify();
749 }
750
751 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
752 if self.selected_item + 1 < self.matches.len() {
753 self.selected_item += 1;
754 } else {
755 self.selected_item = 0;
756 }
757 self.scroll_handle.scroll_to_item(self.selected_item);
758 self.attempt_resolve_selected_completion_documentation(project, cx);
759 cx.notify();
760 }
761
762 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
763 self.selected_item = self.matches.len() - 1;
764 self.scroll_handle.scroll_to_item(self.selected_item);
765 self.attempt_resolve_selected_completion_documentation(project, cx);
766 cx.notify();
767 }
768
769 fn pre_resolve_completion_documentation(
770 completions: Arc<RwLock<Box<[Completion]>>>,
771 matches: Arc<[StringMatch]>,
772 editor: &Editor,
773 cx: &mut ViewContext<Editor>,
774 ) -> Task<()> {
775 let settings = EditorSettings::get_global(cx);
776 if !settings.show_completion_documentation {
777 return Task::ready(());
778 }
779
780 let Some(provider) = editor.completion_provider.as_ref() else {
781 return Task::ready(());
782 };
783
784 let resolve_task = provider.resolve_completions(
785 matches.iter().map(|m| m.candidate_id).collect(),
786 completions.clone(),
787 cx,
788 );
789
790 return cx.spawn(move |this, mut cx| async move {
791 if let Some(true) = resolve_task.await.log_err() {
792 this.update(&mut cx, |_, cx| cx.notify()).ok();
793 }
794 });
795 }
796
797 fn attempt_resolve_selected_completion_documentation(
798 &mut self,
799 project: Option<&Model<Project>>,
800 cx: &mut ViewContext<Editor>,
801 ) {
802 let settings = EditorSettings::get_global(cx);
803 if !settings.show_completion_documentation {
804 return;
805 }
806
807 let completion_index = self.matches[self.selected_item].candidate_id;
808 let Some(project) = project else {
809 return;
810 };
811
812 let resolve_task = project.update(cx, |project, cx| {
813 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
814 });
815
816 let delay_ms =
817 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
818 let delay = Duration::from_millis(delay_ms);
819
820 self.selected_completion_documentation_resolve_debounce
821 .lock()
822 .fire_new(delay, cx, |_, cx| {
823 cx.spawn(move |this, mut cx| async move {
824 if let Some(true) = resolve_task.await.log_err() {
825 this.update(&mut cx, |_, cx| cx.notify()).ok();
826 }
827 })
828 });
829 }
830
831 fn visible(&self) -> bool {
832 !self.matches.is_empty()
833 }
834
835 fn render(
836 &self,
837 style: &EditorStyle,
838 max_height: Pixels,
839 workspace: Option<WeakView<Workspace>>,
840 cx: &mut ViewContext<Editor>,
841 ) -> AnyElement {
842 let settings = EditorSettings::get_global(cx);
843 let show_completion_documentation = settings.show_completion_documentation;
844
845 let widest_completion_ix = self
846 .matches
847 .iter()
848 .enumerate()
849 .max_by_key(|(_, mat)| {
850 let completions = self.completions.read();
851 let completion = &completions[mat.candidate_id];
852 let documentation = &completion.documentation;
853
854 let mut len = completion.label.text.chars().count();
855 if let Some(Documentation::SingleLine(text)) = documentation {
856 if show_completion_documentation {
857 len += text.chars().count();
858 }
859 }
860
861 len
862 })
863 .map(|(ix, _)| ix);
864
865 let completions = self.completions.clone();
866 let matches = self.matches.clone();
867 let selected_item = self.selected_item;
868 let style = style.clone();
869
870 let multiline_docs = if show_completion_documentation {
871 let mat = &self.matches[selected_item];
872 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
873 Some(Documentation::MultiLinePlainText(text)) => {
874 Some(div().child(SharedString::from(text.clone())))
875 }
876 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
877 Some(div().child(render_parsed_markdown(
878 "completions_markdown",
879 parsed,
880 &style,
881 workspace,
882 cx,
883 )))
884 }
885 _ => None,
886 };
887 multiline_docs.map(|div| {
888 div.id("multiline_docs")
889 .max_h(max_height)
890 .flex_1()
891 .px_1p5()
892 .py_1()
893 .min_w(px(260.))
894 .max_w(px(640.))
895 .w(px(500.))
896 .overflow_y_scroll()
897 // Prevent a mouse down on documentation from being propagated to the editor,
898 // because that would move the cursor.
899 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
900 })
901 } else {
902 None
903 };
904
905 let list = uniform_list(
906 cx.view().clone(),
907 "completions",
908 matches.len(),
909 move |_editor, range, cx| {
910 let start_ix = range.start;
911 let completions_guard = completions.read();
912
913 matches[range]
914 .iter()
915 .enumerate()
916 .map(|(ix, mat)| {
917 let item_ix = start_ix + ix;
918 let candidate_id = mat.candidate_id;
919 let completion = &completions_guard[candidate_id];
920
921 let documentation = if show_completion_documentation {
922 &completion.documentation
923 } else {
924 &None
925 };
926
927 let highlights = gpui::combine_highlights(
928 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
929 styled_runs_for_code_label(&completion.label, &style.syntax).map(
930 |(range, mut highlight)| {
931 // Ignore font weight for syntax highlighting, as we'll use it
932 // for fuzzy matches.
933 highlight.font_weight = None;
934
935 if completion.lsp_completion.deprecated.unwrap_or(false) {
936 highlight.strikethrough = Some(StrikethroughStyle {
937 thickness: 1.0.into(),
938 ..Default::default()
939 });
940 highlight.color = Some(cx.theme().colors().text_muted);
941 }
942
943 (range, highlight)
944 },
945 ),
946 );
947 let completion_label = StyledText::new(completion.label.text.clone())
948 .with_highlights(&style.text, highlights);
949 let documentation_label =
950 if let Some(Documentation::SingleLine(text)) = documentation {
951 if text.trim().is_empty() {
952 None
953 } else {
954 Some(
955 h_flex().ml_4().child(
956 Label::new(text.clone())
957 .size(LabelSize::Small)
958 .color(Color::Muted),
959 ),
960 )
961 }
962 } else {
963 None
964 };
965
966 div().min_w(px(220.)).max_w(px(540.)).child(
967 ListItem::new(mat.candidate_id)
968 .inset(true)
969 .selected(item_ix == selected_item)
970 .on_click(cx.listener(move |editor, _event, cx| {
971 cx.stop_propagation();
972 if let Some(task) = editor.confirm_completion(
973 &ConfirmCompletion {
974 item_ix: Some(item_ix),
975 },
976 cx,
977 ) {
978 task.detach_and_log_err(cx)
979 }
980 }))
981 .child(h_flex().overflow_hidden().child(completion_label))
982 .end_slot::<Div>(documentation_label),
983 )
984 })
985 .collect()
986 },
987 )
988 .max_h(max_height)
989 .track_scroll(self.scroll_handle.clone())
990 .with_width_from_item(widest_completion_ix);
991
992 Popover::new()
993 .child(list)
994 .when_some(multiline_docs, |popover, multiline_docs| {
995 popover.aside(multiline_docs)
996 })
997 .into_any_element()
998 }
999
1000 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1001 let mut matches = if let Some(query) = query {
1002 fuzzy::match_strings(
1003 &self.match_candidates,
1004 query,
1005 query.chars().any(|c| c.is_uppercase()),
1006 100,
1007 &Default::default(),
1008 executor,
1009 )
1010 .await
1011 } else {
1012 self.match_candidates
1013 .iter()
1014 .enumerate()
1015 .map(|(candidate_id, candidate)| StringMatch {
1016 candidate_id,
1017 score: Default::default(),
1018 positions: Default::default(),
1019 string: candidate.string.clone(),
1020 })
1021 .collect()
1022 };
1023
1024 // Remove all candidates where the query's start does not match the start of any word in the candidate
1025 if let Some(query) = query {
1026 if let Some(query_start) = query.chars().next() {
1027 matches.retain(|string_match| {
1028 split_words(&string_match.string).any(|word| {
1029 // Check that the first codepoint of the word as lowercase matches the first
1030 // codepoint of the query as lowercase
1031 word.chars()
1032 .flat_map(|codepoint| codepoint.to_lowercase())
1033 .zip(query_start.to_lowercase())
1034 .all(|(word_cp, query_cp)| word_cp == query_cp)
1035 })
1036 });
1037 }
1038 }
1039
1040 let completions = self.completions.read();
1041 matches.sort_unstable_by_key(|mat| {
1042 // We do want to strike a balance here between what the language server tells us
1043 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1044 // `Creat` and there is a local variable called `CreateComponent`).
1045 // So what we do is: we bucket all matches into two buckets
1046 // - Strong matches
1047 // - Weak matches
1048 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1049 // and the Weak matches are the rest.
1050 //
1051 // For the strong matches, we sort by the language-servers score first and for the weak
1052 // matches, we prefer our fuzzy finder first.
1053 //
1054 // The thinking behind that: it's useless to take the sort_text the language-server gives
1055 // us into account when it's obviously a bad match.
1056
1057 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1058 enum MatchScore<'a> {
1059 Strong {
1060 sort_text: Option<&'a str>,
1061 score: Reverse<OrderedFloat<f64>>,
1062 sort_key: (usize, &'a str),
1063 },
1064 Weak {
1065 score: Reverse<OrderedFloat<f64>>,
1066 sort_text: Option<&'a str>,
1067 sort_key: (usize, &'a str),
1068 },
1069 }
1070
1071 let completion = &completions[mat.candidate_id];
1072 let sort_key = completion.sort_key();
1073 let sort_text = completion.lsp_completion.sort_text.as_deref();
1074 let score = Reverse(OrderedFloat(mat.score));
1075
1076 if mat.score >= 0.2 {
1077 MatchScore::Strong {
1078 sort_text,
1079 score,
1080 sort_key,
1081 }
1082 } else {
1083 MatchScore::Weak {
1084 score,
1085 sort_text,
1086 sort_key,
1087 }
1088 }
1089 });
1090
1091 for mat in &mut matches {
1092 let completion = &completions[mat.candidate_id];
1093 mat.string = completion.label.text.clone();
1094 for position in &mut mat.positions {
1095 *position += completion.label.filter_range.start;
1096 }
1097 }
1098 drop(completions);
1099
1100 self.matches = matches.into();
1101 self.selected_item = 0;
1102 }
1103}
1104
1105#[derive(Clone)]
1106struct CodeActionsMenu {
1107 actions: Arc<[CodeAction]>,
1108 buffer: Model<Buffer>,
1109 selected_item: usize,
1110 scroll_handle: UniformListScrollHandle,
1111 deployed_from_indicator: bool,
1112}
1113
1114impl CodeActionsMenu {
1115 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1116 self.selected_item = 0;
1117 self.scroll_handle.scroll_to_item(self.selected_item);
1118 cx.notify()
1119 }
1120
1121 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1122 if self.selected_item > 0 {
1123 self.selected_item -= 1;
1124 } else {
1125 self.selected_item = self.actions.len() - 1;
1126 }
1127 self.scroll_handle.scroll_to_item(self.selected_item);
1128 cx.notify();
1129 }
1130
1131 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1132 if self.selected_item + 1 < self.actions.len() {
1133 self.selected_item += 1;
1134 } else {
1135 self.selected_item = 0;
1136 }
1137 self.scroll_handle.scroll_to_item(self.selected_item);
1138 cx.notify();
1139 }
1140
1141 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1142 self.selected_item = self.actions.len() - 1;
1143 self.scroll_handle.scroll_to_item(self.selected_item);
1144 cx.notify()
1145 }
1146
1147 fn visible(&self) -> bool {
1148 !self.actions.is_empty()
1149 }
1150
1151 fn render(
1152 &self,
1153 mut cursor_position: DisplayPoint,
1154 _style: &EditorStyle,
1155 max_height: Pixels,
1156 cx: &mut ViewContext<Editor>,
1157 ) -> (DisplayPoint, AnyElement) {
1158 let actions = self.actions.clone();
1159 let selected_item = self.selected_item;
1160
1161 let element = uniform_list(
1162 cx.view().clone(),
1163 "code_actions_menu",
1164 self.actions.len(),
1165 move |_this, range, cx| {
1166 actions[range.clone()]
1167 .iter()
1168 .enumerate()
1169 .map(|(ix, action)| {
1170 let item_ix = range.start + ix;
1171 let selected = selected_item == item_ix;
1172 let colors = cx.theme().colors();
1173 div()
1174 .px_2()
1175 .text_color(colors.text)
1176 .when(selected, |style| {
1177 style
1178 .bg(colors.element_active)
1179 .text_color(colors.text_accent)
1180 })
1181 .hover(|style| {
1182 style
1183 .bg(colors.element_hover)
1184 .text_color(colors.text_accent)
1185 })
1186 .on_mouse_down(
1187 MouseButton::Left,
1188 cx.listener(move |editor, _, cx| {
1189 cx.stop_propagation();
1190 if let Some(task) = editor.confirm_code_action(
1191 &ConfirmCodeAction {
1192 item_ix: Some(item_ix),
1193 },
1194 cx,
1195 ) {
1196 task.detach_and_log_err(cx)
1197 }
1198 }),
1199 )
1200 .whitespace_nowrap()
1201 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1202 .child(SharedString::from(action.lsp_action.title.clone()))
1203 })
1204 .collect()
1205 },
1206 )
1207 .elevation_1(cx)
1208 .px_2()
1209 .py_1()
1210 .max_h(max_height)
1211 .track_scroll(self.scroll_handle.clone())
1212 .with_width_from_item(
1213 self.actions
1214 .iter()
1215 .enumerate()
1216 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1217 .map(|(ix, _)| ix),
1218 )
1219 .into_any_element();
1220
1221 if self.deployed_from_indicator {
1222 *cursor_position.column_mut() = 0;
1223 }
1224
1225 (cursor_position, element)
1226 }
1227}
1228
1229#[derive(Debug)]
1230pub(crate) struct CopilotState {
1231 excerpt_id: Option<ExcerptId>,
1232 pending_refresh: Task<Option<()>>,
1233 pending_cycling_refresh: Task<Option<()>>,
1234 cycled: bool,
1235 completions: Vec<copilot::Completion>,
1236 active_completion_index: usize,
1237 suggestion: Option<Inlay>,
1238}
1239
1240impl Default for CopilotState {
1241 fn default() -> Self {
1242 Self {
1243 excerpt_id: None,
1244 pending_cycling_refresh: Task::ready(Some(())),
1245 pending_refresh: Task::ready(Some(())),
1246 completions: Default::default(),
1247 active_completion_index: 0,
1248 cycled: false,
1249 suggestion: None,
1250 }
1251 }
1252}
1253
1254impl CopilotState {
1255 fn active_completion(&self) -> Option<&copilot::Completion> {
1256 self.completions.get(self.active_completion_index)
1257 }
1258
1259 fn text_for_active_completion(
1260 &self,
1261 cursor: Anchor,
1262 buffer: &MultiBufferSnapshot,
1263 ) -> Option<&str> {
1264 use language::ToOffset as _;
1265
1266 let completion = self.active_completion()?;
1267 let excerpt_id = self.excerpt_id?;
1268 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1269 if excerpt_id != cursor.excerpt_id
1270 || !completion.range.start.is_valid(completion_buffer)
1271 || !completion.range.end.is_valid(completion_buffer)
1272 {
1273 return None;
1274 }
1275
1276 let mut completion_range = completion.range.to_offset(&completion_buffer);
1277 let prefix_len = Self::common_prefix(
1278 completion_buffer.chars_for_range(completion_range.clone()),
1279 completion.text.chars(),
1280 );
1281 completion_range.start += prefix_len;
1282 let suffix_len = Self::common_prefix(
1283 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1284 completion.text[prefix_len..].chars().rev(),
1285 );
1286 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1287
1288 if completion_range.is_empty()
1289 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1290 {
1291 let completion_text = &completion.text[prefix_len..completion.text.len() - suffix_len];
1292 if completion_text.trim().is_empty() {
1293 None
1294 } else {
1295 Some(completion_text)
1296 }
1297 } else {
1298 None
1299 }
1300 }
1301
1302 fn cycle_completions(&mut self, direction: Direction) {
1303 match direction {
1304 Direction::Prev => {
1305 self.active_completion_index = if self.active_completion_index == 0 {
1306 self.completions.len().saturating_sub(1)
1307 } else {
1308 self.active_completion_index - 1
1309 };
1310 }
1311 Direction::Next => {
1312 if self.completions.len() == 0 {
1313 self.active_completion_index = 0
1314 } else {
1315 self.active_completion_index =
1316 (self.active_completion_index + 1) % self.completions.len();
1317 }
1318 }
1319 }
1320 }
1321
1322 fn push_completion(&mut self, new_completion: copilot::Completion) {
1323 for completion in &self.completions {
1324 if completion.text == new_completion.text && completion.range == new_completion.range {
1325 return;
1326 }
1327 }
1328 self.completions.push(new_completion);
1329 }
1330
1331 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1332 a.zip(b)
1333 .take_while(|(a, b)| a == b)
1334 .map(|(a, _)| a.len_utf8())
1335 .sum()
1336 }
1337}
1338
1339#[derive(Debug)]
1340struct ActiveDiagnosticGroup {
1341 primary_range: Range<Anchor>,
1342 primary_message: String,
1343 blocks: HashMap<BlockId, Diagnostic>,
1344 is_valid: bool,
1345}
1346
1347#[derive(Serialize, Deserialize)]
1348pub struct ClipboardSelection {
1349 pub len: usize,
1350 pub is_entire_line: bool,
1351 pub first_line_indent: u32,
1352}
1353
1354#[derive(Debug)]
1355pub(crate) struct NavigationData {
1356 cursor_anchor: Anchor,
1357 cursor_position: Point,
1358 scroll_anchor: ScrollAnchor,
1359 scroll_top_row: u32,
1360}
1361
1362enum GotoDefinitionKind {
1363 Symbol,
1364 Type,
1365 Implementation,
1366}
1367
1368#[derive(Debug, Clone)]
1369enum InlayHintRefreshReason {
1370 Toggle(bool),
1371 SettingsChange(InlayHintSettings),
1372 NewLinesShown,
1373 BufferEdited(HashSet<Arc<Language>>),
1374 RefreshRequested,
1375 ExcerptsRemoved(Vec<ExcerptId>),
1376}
1377
1378impl InlayHintRefreshReason {
1379 fn description(&self) -> &'static str {
1380 match self {
1381 Self::Toggle(_) => "toggle",
1382 Self::SettingsChange(_) => "settings change",
1383 Self::NewLinesShown => "new lines shown",
1384 Self::BufferEdited(_) => "buffer edited",
1385 Self::RefreshRequested => "refresh requested",
1386 Self::ExcerptsRemoved(_) => "excerpts removed",
1387 }
1388 }
1389}
1390
1391impl Editor {
1392 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1393 let buffer = cx.new_model(|cx| {
1394 Buffer::new(
1395 0,
1396 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1397 String::new(),
1398 )
1399 });
1400 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1401 Self::new(EditorMode::SingleLine, buffer, None, cx)
1402 }
1403
1404 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1405 let buffer = cx.new_model(|cx| {
1406 Buffer::new(
1407 0,
1408 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1409 String::new(),
1410 )
1411 });
1412 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1413 Self::new(EditorMode::Full, buffer, None, cx)
1414 }
1415
1416 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1417 let buffer = cx.new_model(|cx| {
1418 Buffer::new(
1419 0,
1420 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1421 String::new(),
1422 )
1423 });
1424 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1425 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1426 }
1427
1428 pub fn for_buffer(
1429 buffer: Model<Buffer>,
1430 project: Option<Model<Project>>,
1431 cx: &mut ViewContext<Self>,
1432 ) -> Self {
1433 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1434 Self::new(EditorMode::Full, buffer, project, cx)
1435 }
1436
1437 pub fn for_multibuffer(
1438 buffer: Model<MultiBuffer>,
1439 project: Option<Model<Project>>,
1440 cx: &mut ViewContext<Self>,
1441 ) -> Self {
1442 Self::new(EditorMode::Full, buffer, project, cx)
1443 }
1444
1445 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1446 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1447 self.display_map.update(cx, |display_map, cx| {
1448 let snapshot = display_map.snapshot(cx);
1449 clone.display_map.update(cx, |display_map, cx| {
1450 display_map.set_state(&snapshot, cx);
1451 });
1452 });
1453 clone.selections.clone_state(&self.selections);
1454 clone.scroll_manager.clone_state(&self.scroll_manager);
1455 clone.searchable = self.searchable;
1456 clone
1457 }
1458
1459 fn new(
1460 mode: EditorMode,
1461 buffer: Model<MultiBuffer>,
1462 project: Option<Model<Project>>,
1463 cx: &mut ViewContext<Self>,
1464 ) -> Self {
1465 let style = cx.text_style();
1466 let font_size = style.font_size.to_pixels(cx.rem_size());
1467 let display_map = cx.new_model(|cx| {
1468 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1469 });
1470
1471 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1472
1473 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1474
1475 let soft_wrap_mode_override =
1476 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1477
1478 let mut project_subscriptions = Vec::new();
1479 if mode == EditorMode::Full {
1480 if let Some(project) = project.as_ref() {
1481 if buffer.read(cx).is_singleton() {
1482 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1483 cx.emit(EditorEvent::TitleChanged);
1484 }));
1485 }
1486 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1487 if let project::Event::RefreshInlayHints = event {
1488 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1489 };
1490 }));
1491 }
1492 }
1493
1494 let inlay_hint_settings = inlay_hint_settings(
1495 selections.newest_anchor().head(),
1496 &buffer.read(cx).snapshot(cx),
1497 cx,
1498 );
1499
1500 let focus_handle = cx.focus_handle();
1501 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1502 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1503
1504 let mut this = Self {
1505 focus_handle,
1506 buffer: buffer.clone(),
1507 display_map: display_map.clone(),
1508 selections,
1509 scroll_manager: ScrollManager::new(cx),
1510 columnar_selection_tail: None,
1511 add_selections_state: None,
1512 select_next_state: None,
1513 select_prev_state: None,
1514 selection_history: Default::default(),
1515 autoclose_regions: Default::default(),
1516 snippet_stack: Default::default(),
1517 select_larger_syntax_node_stack: Vec::new(),
1518 ime_transaction: Default::default(),
1519 active_diagnostics: None,
1520 soft_wrap_mode_override,
1521 completion_provider: project.clone().map(|project| Box::new(project) as _),
1522 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1523 project,
1524 blink_manager: blink_manager.clone(),
1525 show_local_selections: true,
1526 mode,
1527 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1528 show_gutter: mode == EditorMode::Full,
1529 show_wrap_guides: None,
1530 placeholder_text: None,
1531 highlight_order: 0,
1532 highlighted_rows: HashMap::default(),
1533 background_highlights: Default::default(),
1534 nav_history: None,
1535 context_menu: RwLock::new(None),
1536 mouse_context_menu: None,
1537 completion_tasks: Default::default(),
1538 find_all_references_task_sources: Vec::new(),
1539 next_completion_id: 0,
1540 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1541 next_inlay_id: 0,
1542 available_code_actions: Default::default(),
1543 code_actions_task: Default::default(),
1544 document_highlights_task: Default::default(),
1545 pending_rename: Default::default(),
1546 searchable: true,
1547 cursor_shape: Default::default(),
1548 autoindent_mode: Some(AutoindentMode::EachLine),
1549 collapse_matches: false,
1550 workspace: None,
1551 keymap_context_layers: Default::default(),
1552 input_enabled: true,
1553 use_modal_editing: mode == EditorMode::Full,
1554 read_only: false,
1555 use_autoclose: true,
1556 auto_replace_emoji_shortcode: false,
1557 leader_peer_id: None,
1558 remote_id: None,
1559 hover_state: Default::default(),
1560 hovered_link_state: Default::default(),
1561 copilot_state: Default::default(),
1562 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1563 gutter_hovered: false,
1564 pixel_position_of_newest_cursor: None,
1565 gutter_width: Default::default(),
1566 style: None,
1567 show_cursor_names: false,
1568 hovered_cursors: Default::default(),
1569 editor_actions: Default::default(),
1570 show_copilot_suggestions: mode == EditorMode::Full,
1571 custom_context_menu: None,
1572 _subscriptions: vec![
1573 cx.observe(&buffer, Self::on_buffer_changed),
1574 cx.subscribe(&buffer, Self::on_buffer_event),
1575 cx.observe(&display_map, Self::on_display_map_changed),
1576 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1577 cx.observe_global::<SettingsStore>(Self::settings_changed),
1578 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1579 cx.observe_window_activation(|editor, cx| {
1580 let active = cx.is_window_active();
1581 editor.blink_manager.update(cx, |blink_manager, cx| {
1582 if active {
1583 blink_manager.enable(cx);
1584 } else {
1585 blink_manager.show_cursor(cx);
1586 blink_manager.disable(cx);
1587 }
1588 });
1589 }),
1590 ],
1591 };
1592
1593 this._subscriptions.extend(project_subscriptions);
1594
1595 this.end_selection(cx);
1596 this.scroll_manager.show_scrollbar(cx);
1597
1598 if mode == EditorMode::Full {
1599 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1600 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1601 }
1602
1603 this.report_editor_event("open", None, cx);
1604 this
1605 }
1606
1607 fn key_context(&self, cx: &AppContext) -> KeyContext {
1608 let mut key_context = KeyContext::default();
1609 key_context.add("Editor");
1610 let mode = match self.mode {
1611 EditorMode::SingleLine => "single_line",
1612 EditorMode::AutoHeight { .. } => "auto_height",
1613 EditorMode::Full => "full",
1614 };
1615 key_context.set("mode", mode);
1616 if self.pending_rename.is_some() {
1617 key_context.add("renaming");
1618 }
1619 if self.context_menu_visible() {
1620 match self.context_menu.read().as_ref() {
1621 Some(ContextMenu::Completions(_)) => {
1622 key_context.add("menu");
1623 key_context.add("showing_completions")
1624 }
1625 Some(ContextMenu::CodeActions(_)) => {
1626 key_context.add("menu");
1627 key_context.add("showing_code_actions")
1628 }
1629 None => {}
1630 }
1631 }
1632
1633 for layer in self.keymap_context_layers.values() {
1634 key_context.extend(layer);
1635 }
1636
1637 if let Some(extension) = self
1638 .buffer
1639 .read(cx)
1640 .as_singleton()
1641 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1642 {
1643 key_context.set("extension", extension.to_string());
1644 }
1645
1646 if self.has_active_copilot_suggestion(cx) {
1647 key_context.add("copilot_suggestion");
1648 }
1649
1650 key_context
1651 }
1652
1653 pub fn new_file(
1654 workspace: &mut Workspace,
1655 _: &workspace::NewFile,
1656 cx: &mut ViewContext<Workspace>,
1657 ) {
1658 let project = workspace.project().clone();
1659 if project.read(cx).is_remote() {
1660 cx.propagate();
1661 } else if let Some(buffer) = project
1662 .update(cx, |project, cx| project.create_buffer("", None, cx))
1663 .log_err()
1664 {
1665 workspace.add_item_to_active_pane(
1666 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1667 cx,
1668 );
1669 }
1670 }
1671
1672 pub fn new_file_in_direction(
1673 workspace: &mut Workspace,
1674 action: &workspace::NewFileInDirection,
1675 cx: &mut ViewContext<Workspace>,
1676 ) {
1677 let project = workspace.project().clone();
1678 if project.read(cx).is_remote() {
1679 cx.propagate();
1680 } else if let Some(buffer) = project
1681 .update(cx, |project, cx| project.create_buffer("", None, cx))
1682 .log_err()
1683 {
1684 workspace.split_item(
1685 action.0,
1686 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1687 cx,
1688 );
1689 }
1690 }
1691
1692 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1693 self.buffer.read(cx).replica_id()
1694 }
1695
1696 pub fn leader_peer_id(&self) -> Option<PeerId> {
1697 self.leader_peer_id
1698 }
1699
1700 pub fn buffer(&self) -> &Model<MultiBuffer> {
1701 &self.buffer
1702 }
1703
1704 pub fn workspace(&self) -> Option<View<Workspace>> {
1705 self.workspace.as_ref()?.0.upgrade()
1706 }
1707
1708 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1709 self.buffer().read(cx).title(cx)
1710 }
1711
1712 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1713 EditorSnapshot {
1714 mode: self.mode,
1715 show_gutter: self.show_gutter,
1716 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1717 scroll_anchor: self.scroll_manager.anchor(),
1718 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1719 placeholder_text: self.placeholder_text.clone(),
1720 is_focused: self.focus_handle.is_focused(cx),
1721 }
1722 }
1723
1724 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1725 self.buffer.read(cx).language_at(point, cx)
1726 }
1727
1728 pub fn file_at<T: ToOffset>(
1729 &self,
1730 point: T,
1731 cx: &AppContext,
1732 ) -> Option<Arc<dyn language::File>> {
1733 self.buffer.read(cx).read(cx).file_at(point).cloned()
1734 }
1735
1736 pub fn active_excerpt(
1737 &self,
1738 cx: &AppContext,
1739 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1740 self.buffer
1741 .read(cx)
1742 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1743 }
1744
1745 pub fn mode(&self) -> EditorMode {
1746 self.mode
1747 }
1748
1749 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1750 self.collaboration_hub.as_deref()
1751 }
1752
1753 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1754 self.collaboration_hub = Some(hub);
1755 }
1756
1757 pub fn set_custom_context_menu(
1758 &mut self,
1759 f: impl 'static
1760 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1761 ) {
1762 self.custom_context_menu = Some(Box::new(f))
1763 }
1764
1765 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1766 self.completion_provider = Some(hub);
1767 }
1768
1769 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1770 self.placeholder_text.as_deref()
1771 }
1772
1773 pub fn set_placeholder_text(
1774 &mut self,
1775 placeholder_text: impl Into<Arc<str>>,
1776 cx: &mut ViewContext<Self>,
1777 ) {
1778 let placeholder_text = Some(placeholder_text.into());
1779 if self.placeholder_text != placeholder_text {
1780 self.placeholder_text = placeholder_text;
1781 cx.notify();
1782 }
1783 }
1784
1785 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1786 self.cursor_shape = cursor_shape;
1787 cx.notify();
1788 }
1789
1790 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1791 self.collapse_matches = collapse_matches;
1792 }
1793
1794 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1795 if self.collapse_matches {
1796 return range.start..range.start;
1797 }
1798 range.clone()
1799 }
1800
1801 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1802 if self.display_map.read(cx).clip_at_line_ends != clip {
1803 self.display_map
1804 .update(cx, |map, _| map.clip_at_line_ends = clip);
1805 }
1806 }
1807
1808 pub fn set_keymap_context_layer<Tag: 'static>(
1809 &mut self,
1810 context: KeyContext,
1811 cx: &mut ViewContext<Self>,
1812 ) {
1813 self.keymap_context_layers
1814 .insert(TypeId::of::<Tag>(), context);
1815 cx.notify();
1816 }
1817
1818 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1819 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1820 cx.notify();
1821 }
1822
1823 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1824 self.input_enabled = input_enabled;
1825 }
1826
1827 pub fn set_autoindent(&mut self, autoindent: bool) {
1828 if autoindent {
1829 self.autoindent_mode = Some(AutoindentMode::EachLine);
1830 } else {
1831 self.autoindent_mode = None;
1832 }
1833 }
1834
1835 pub fn read_only(&self, cx: &AppContext) -> bool {
1836 self.read_only || self.buffer.read(cx).read_only()
1837 }
1838
1839 pub fn set_read_only(&mut self, read_only: bool) {
1840 self.read_only = read_only;
1841 }
1842
1843 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1844 self.use_autoclose = autoclose;
1845 }
1846
1847 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1848 self.auto_replace_emoji_shortcode = auto_replace;
1849 }
1850
1851 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1852 self.show_copilot_suggestions = show_copilot_suggestions;
1853 }
1854
1855 pub fn set_use_modal_editing(&mut self, to: bool) {
1856 self.use_modal_editing = to;
1857 }
1858
1859 pub fn use_modal_editing(&self) -> bool {
1860 self.use_modal_editing
1861 }
1862
1863 fn selections_did_change(
1864 &mut self,
1865 local: bool,
1866 old_cursor_position: &Anchor,
1867 cx: &mut ViewContext<Self>,
1868 ) {
1869 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1870 self.buffer.update(cx, |buffer, cx| {
1871 buffer.set_active_selections(
1872 &self.selections.disjoint_anchors(),
1873 self.selections.line_mode,
1874 self.cursor_shape,
1875 cx,
1876 )
1877 });
1878 }
1879
1880 let display_map = self
1881 .display_map
1882 .update(cx, |display_map, cx| display_map.snapshot(cx));
1883 let buffer = &display_map.buffer_snapshot;
1884 self.add_selections_state = None;
1885 self.select_next_state = None;
1886 self.select_prev_state = None;
1887 self.select_larger_syntax_node_stack.clear();
1888 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1889 self.snippet_stack
1890 .invalidate(&self.selections.disjoint_anchors(), buffer);
1891 self.take_rename(false, cx);
1892
1893 let new_cursor_position = self.selections.newest_anchor().head();
1894
1895 self.push_to_nav_history(
1896 *old_cursor_position,
1897 Some(new_cursor_position.to_point(buffer)),
1898 cx,
1899 );
1900
1901 if local {
1902 let new_cursor_position = self.selections.newest_anchor().head();
1903 let mut context_menu = self.context_menu.write();
1904 let completion_menu = match context_menu.as_ref() {
1905 Some(ContextMenu::Completions(menu)) => Some(menu),
1906
1907 _ => {
1908 *context_menu = None;
1909 None
1910 }
1911 };
1912
1913 if let Some(completion_menu) = completion_menu {
1914 let cursor_position = new_cursor_position.to_offset(buffer);
1915 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
1916 if kind == Some(CharKind::Word)
1917 && word_range.to_inclusive().contains(&cursor_position)
1918 {
1919 let mut completion_menu = completion_menu.clone();
1920 drop(context_menu);
1921
1922 let query = Self::completion_query(buffer, cursor_position);
1923 cx.spawn(move |this, mut cx| async move {
1924 completion_menu
1925 .filter(query.as_deref(), cx.background_executor().clone())
1926 .await;
1927
1928 this.update(&mut cx, |this, cx| {
1929 let mut context_menu = this.context_menu.write();
1930 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1931 return;
1932 };
1933
1934 if menu.id > completion_menu.id {
1935 return;
1936 }
1937
1938 *context_menu = Some(ContextMenu::Completions(completion_menu));
1939 drop(context_menu);
1940 cx.notify();
1941 })
1942 })
1943 .detach();
1944
1945 self.show_completions(&ShowCompletions, cx);
1946 } else {
1947 drop(context_menu);
1948 self.hide_context_menu(cx);
1949 }
1950 } else {
1951 drop(context_menu);
1952 }
1953
1954 hide_hover(self, cx);
1955
1956 if old_cursor_position.to_display_point(&display_map).row()
1957 != new_cursor_position.to_display_point(&display_map).row()
1958 {
1959 self.available_code_actions.take();
1960 }
1961 self.refresh_code_actions(cx);
1962 self.refresh_document_highlights(cx);
1963 refresh_matching_bracket_highlights(self, cx);
1964 self.discard_copilot_suggestion(cx);
1965 }
1966
1967 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1968 cx.emit(EditorEvent::SelectionsChanged { local });
1969
1970 if self.selections.disjoint_anchors().len() == 1 {
1971 cx.emit(SearchEvent::ActiveMatchChanged)
1972 }
1973
1974 cx.notify();
1975 }
1976
1977 pub fn change_selections<R>(
1978 &mut self,
1979 autoscroll: Option<Autoscroll>,
1980 cx: &mut ViewContext<Self>,
1981 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1982 ) -> R {
1983 let old_cursor_position = self.selections.newest_anchor().head();
1984 self.push_to_selection_history();
1985
1986 let (changed, result) = self.selections.change_with(cx, change);
1987
1988 if changed {
1989 if let Some(autoscroll) = autoscroll {
1990 self.request_autoscroll(autoscroll, cx);
1991 }
1992 self.selections_did_change(true, &old_cursor_position, cx);
1993 }
1994
1995 result
1996 }
1997
1998 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1999 where
2000 I: IntoIterator<Item = (Range<S>, T)>,
2001 S: ToOffset,
2002 T: Into<Arc<str>>,
2003 {
2004 if self.read_only(cx) {
2005 return;
2006 }
2007
2008 self.buffer
2009 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2010 }
2011
2012 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2013 where
2014 I: IntoIterator<Item = (Range<S>, T)>,
2015 S: ToOffset,
2016 T: Into<Arc<str>>,
2017 {
2018 if self.read_only(cx) {
2019 return;
2020 }
2021
2022 self.buffer.update(cx, |buffer, cx| {
2023 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2024 });
2025 }
2026
2027 pub fn edit_with_block_indent<I, S, T>(
2028 &mut self,
2029 edits: I,
2030 original_indent_columns: Vec<u32>,
2031 cx: &mut ViewContext<Self>,
2032 ) where
2033 I: IntoIterator<Item = (Range<S>, T)>,
2034 S: ToOffset,
2035 T: Into<Arc<str>>,
2036 {
2037 if self.read_only(cx) {
2038 return;
2039 }
2040
2041 self.buffer.update(cx, |buffer, cx| {
2042 buffer.edit(
2043 edits,
2044 Some(AutoindentMode::Block {
2045 original_indent_columns,
2046 }),
2047 cx,
2048 )
2049 });
2050 }
2051
2052 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2053 self.hide_context_menu(cx);
2054
2055 match phase {
2056 SelectPhase::Begin {
2057 position,
2058 add,
2059 click_count,
2060 } => self.begin_selection(position, add, click_count, cx),
2061 SelectPhase::BeginColumnar {
2062 position,
2063 goal_column,
2064 } => self.begin_columnar_selection(position, goal_column, cx),
2065 SelectPhase::Extend {
2066 position,
2067 click_count,
2068 } => self.extend_selection(position, click_count, cx),
2069 SelectPhase::Update {
2070 position,
2071 goal_column,
2072 scroll_delta,
2073 } => self.update_selection(position, goal_column, scroll_delta, cx),
2074 SelectPhase::End => self.end_selection(cx),
2075 }
2076 }
2077
2078 fn extend_selection(
2079 &mut self,
2080 position: DisplayPoint,
2081 click_count: usize,
2082 cx: &mut ViewContext<Self>,
2083 ) {
2084 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2085 let tail = self.selections.newest::<usize>(cx).tail();
2086 self.begin_selection(position, false, click_count, cx);
2087
2088 let position = position.to_offset(&display_map, Bias::Left);
2089 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2090
2091 let mut pending_selection = self
2092 .selections
2093 .pending_anchor()
2094 .expect("extend_selection not called with pending selection");
2095 if position >= tail {
2096 pending_selection.start = tail_anchor;
2097 } else {
2098 pending_selection.end = tail_anchor;
2099 pending_selection.reversed = true;
2100 }
2101
2102 let mut pending_mode = self.selections.pending_mode().unwrap();
2103 match &mut pending_mode {
2104 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2105 _ => {}
2106 }
2107
2108 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2109 s.set_pending(pending_selection, pending_mode)
2110 });
2111 }
2112
2113 fn begin_selection(
2114 &mut self,
2115 position: DisplayPoint,
2116 add: bool,
2117 click_count: usize,
2118 cx: &mut ViewContext<Self>,
2119 ) {
2120 if !self.focus_handle.is_focused(cx) {
2121 cx.focus(&self.focus_handle);
2122 }
2123
2124 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2125 let buffer = &display_map.buffer_snapshot;
2126 let newest_selection = self.selections.newest_anchor().clone();
2127 let position = display_map.clip_point(position, Bias::Left);
2128
2129 let start;
2130 let end;
2131 let mode;
2132 let auto_scroll;
2133 match click_count {
2134 1 => {
2135 start = buffer.anchor_before(position.to_point(&display_map));
2136 end = start;
2137 mode = SelectMode::Character;
2138 auto_scroll = true;
2139 }
2140 2 => {
2141 let range = movement::surrounding_word(&display_map, position);
2142 start = buffer.anchor_before(range.start.to_point(&display_map));
2143 end = buffer.anchor_before(range.end.to_point(&display_map));
2144 mode = SelectMode::Word(start..end);
2145 auto_scroll = true;
2146 }
2147 3 => {
2148 let position = display_map
2149 .clip_point(position, Bias::Left)
2150 .to_point(&display_map);
2151 let line_start = display_map.prev_line_boundary(position).0;
2152 let next_line_start = buffer.clip_point(
2153 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2154 Bias::Left,
2155 );
2156 start = buffer.anchor_before(line_start);
2157 end = buffer.anchor_before(next_line_start);
2158 mode = SelectMode::Line(start..end);
2159 auto_scroll = true;
2160 }
2161 _ => {
2162 start = buffer.anchor_before(0);
2163 end = buffer.anchor_before(buffer.len());
2164 mode = SelectMode::All;
2165 auto_scroll = false;
2166 }
2167 }
2168
2169 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2170 if !add {
2171 s.clear_disjoint();
2172 } else if click_count > 1 {
2173 s.delete(newest_selection.id)
2174 }
2175
2176 s.set_pending_anchor_range(start..end, mode);
2177 });
2178 }
2179
2180 fn begin_columnar_selection(
2181 &mut self,
2182 position: DisplayPoint,
2183 goal_column: u32,
2184 cx: &mut ViewContext<Self>,
2185 ) {
2186 if !self.focus_handle.is_focused(cx) {
2187 cx.focus(&self.focus_handle);
2188 }
2189
2190 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2191 let tail = self.selections.newest::<Point>(cx).tail();
2192 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2193
2194 self.select_columns(
2195 tail.to_display_point(&display_map),
2196 position,
2197 goal_column,
2198 &display_map,
2199 cx,
2200 );
2201 }
2202
2203 fn update_selection(
2204 &mut self,
2205 position: DisplayPoint,
2206 goal_column: u32,
2207 scroll_delta: gpui::Point<f32>,
2208 cx: &mut ViewContext<Self>,
2209 ) {
2210 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2211
2212 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2213 let tail = tail.to_display_point(&display_map);
2214 self.select_columns(tail, position, goal_column, &display_map, cx);
2215 } else if let Some(mut pending) = self.selections.pending_anchor() {
2216 let buffer = self.buffer.read(cx).snapshot(cx);
2217 let head;
2218 let tail;
2219 let mode = self.selections.pending_mode().unwrap();
2220 match &mode {
2221 SelectMode::Character => {
2222 head = position.to_point(&display_map);
2223 tail = pending.tail().to_point(&buffer);
2224 }
2225 SelectMode::Word(original_range) => {
2226 let original_display_range = original_range.start.to_display_point(&display_map)
2227 ..original_range.end.to_display_point(&display_map);
2228 let original_buffer_range = original_display_range.start.to_point(&display_map)
2229 ..original_display_range.end.to_point(&display_map);
2230 if movement::is_inside_word(&display_map, position)
2231 || original_display_range.contains(&position)
2232 {
2233 let word_range = movement::surrounding_word(&display_map, position);
2234 if word_range.start < original_display_range.start {
2235 head = word_range.start.to_point(&display_map);
2236 } else {
2237 head = word_range.end.to_point(&display_map);
2238 }
2239 } else {
2240 head = position.to_point(&display_map);
2241 }
2242
2243 if head <= original_buffer_range.start {
2244 tail = original_buffer_range.end;
2245 } else {
2246 tail = original_buffer_range.start;
2247 }
2248 }
2249 SelectMode::Line(original_range) => {
2250 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2251
2252 let position = display_map
2253 .clip_point(position, Bias::Left)
2254 .to_point(&display_map);
2255 let line_start = display_map.prev_line_boundary(position).0;
2256 let next_line_start = buffer.clip_point(
2257 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2258 Bias::Left,
2259 );
2260
2261 if line_start < original_range.start {
2262 head = line_start
2263 } else {
2264 head = next_line_start
2265 }
2266
2267 if head <= original_range.start {
2268 tail = original_range.end;
2269 } else {
2270 tail = original_range.start;
2271 }
2272 }
2273 SelectMode::All => {
2274 return;
2275 }
2276 };
2277
2278 if head < tail {
2279 pending.start = buffer.anchor_before(head);
2280 pending.end = buffer.anchor_before(tail);
2281 pending.reversed = true;
2282 } else {
2283 pending.start = buffer.anchor_before(tail);
2284 pending.end = buffer.anchor_before(head);
2285 pending.reversed = false;
2286 }
2287
2288 self.change_selections(None, cx, |s| {
2289 s.set_pending(pending, mode);
2290 });
2291 } else {
2292 log::error!("update_selection dispatched with no pending selection");
2293 return;
2294 }
2295
2296 self.apply_scroll_delta(scroll_delta, cx);
2297 cx.notify();
2298 }
2299
2300 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2301 self.columnar_selection_tail.take();
2302 if self.selections.pending_anchor().is_some() {
2303 let selections = self.selections.all::<usize>(cx);
2304 self.change_selections(None, cx, |s| {
2305 s.select(selections);
2306 s.clear_pending();
2307 });
2308 }
2309 }
2310
2311 fn select_columns(
2312 &mut self,
2313 tail: DisplayPoint,
2314 head: DisplayPoint,
2315 goal_column: u32,
2316 display_map: &DisplaySnapshot,
2317 cx: &mut ViewContext<Self>,
2318 ) {
2319 let start_row = cmp::min(tail.row(), head.row());
2320 let end_row = cmp::max(tail.row(), head.row());
2321 let start_column = cmp::min(tail.column(), goal_column);
2322 let end_column = cmp::max(tail.column(), goal_column);
2323 let reversed = start_column < tail.column();
2324
2325 let selection_ranges = (start_row..=end_row)
2326 .filter_map(|row| {
2327 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2328 let start = display_map
2329 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2330 .to_point(display_map);
2331 let end = display_map
2332 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2333 .to_point(display_map);
2334 if reversed {
2335 Some(end..start)
2336 } else {
2337 Some(start..end)
2338 }
2339 } else {
2340 None
2341 }
2342 })
2343 .collect::<Vec<_>>();
2344
2345 self.change_selections(None, cx, |s| {
2346 s.select_ranges(selection_ranges);
2347 });
2348 cx.notify();
2349 }
2350
2351 pub fn has_pending_nonempty_selection(&self) -> bool {
2352 let pending_nonempty_selection = match self.selections.pending_anchor() {
2353 Some(Selection { start, end, .. }) => start != end,
2354 None => false,
2355 };
2356 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2357 }
2358
2359 pub fn has_pending_selection(&self) -> bool {
2360 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2361 }
2362
2363 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2364 if self.dismiss_menus_and_popups(cx) {
2365 return;
2366 }
2367
2368 if self.mode == EditorMode::Full {
2369 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2370 return;
2371 }
2372 }
2373
2374 cx.propagate();
2375 }
2376
2377 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2378 if self.take_rename(false, cx).is_some() {
2379 return true;
2380 }
2381
2382 if hide_hover(self, cx) {
2383 return true;
2384 }
2385
2386 if self.hide_context_menu(cx).is_some() {
2387 return true;
2388 }
2389
2390 if self.discard_copilot_suggestion(cx) {
2391 return true;
2392 }
2393
2394 if self.snippet_stack.pop().is_some() {
2395 return true;
2396 }
2397
2398 if self.mode == EditorMode::Full {
2399 if self.active_diagnostics.is_some() {
2400 self.dismiss_diagnostics(cx);
2401 return true;
2402 }
2403 }
2404
2405 false
2406 }
2407
2408 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2409 let text: Arc<str> = text.into();
2410
2411 if self.read_only(cx) {
2412 return;
2413 }
2414
2415 let selections = self.selections.all_adjusted(cx);
2416 let mut brace_inserted = false;
2417 let mut edits = Vec::new();
2418 let mut new_selections = Vec::with_capacity(selections.len());
2419 let mut new_autoclose_regions = Vec::new();
2420 let snapshot = self.buffer.read(cx).read(cx);
2421
2422 for (selection, autoclose_region) in
2423 self.selections_with_autoclose_regions(selections, &snapshot)
2424 {
2425 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2426 // Determine if the inserted text matches the opening or closing
2427 // bracket of any of this language's bracket pairs.
2428 let mut bracket_pair = None;
2429 let mut is_bracket_pair_start = false;
2430 if !text.is_empty() {
2431 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2432 // and they are removing the character that triggered IME popup.
2433 for (pair, enabled) in scope.brackets() {
2434 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2435 bracket_pair = Some(pair.clone());
2436 is_bracket_pair_start = true;
2437 break;
2438 } else if pair.end.as_str() == text.as_ref() {
2439 bracket_pair = Some(pair.clone());
2440 break;
2441 }
2442 }
2443 }
2444
2445 if let Some(bracket_pair) = bracket_pair {
2446 if selection.is_empty() {
2447 if is_bracket_pair_start {
2448 let prefix_len = bracket_pair.start.len() - text.len();
2449
2450 // If the inserted text is a suffix of an opening bracket and the
2451 // selection is preceded by the rest of the opening bracket, then
2452 // insert the closing bracket.
2453 let following_text_allows_autoclose = snapshot
2454 .chars_at(selection.start)
2455 .next()
2456 .map_or(true, |c| scope.should_autoclose_before(c));
2457 let preceding_text_matches_prefix = prefix_len == 0
2458 || (selection.start.column >= (prefix_len as u32)
2459 && snapshot.contains_str_at(
2460 Point::new(
2461 selection.start.row,
2462 selection.start.column - (prefix_len as u32),
2463 ),
2464 &bracket_pair.start[..prefix_len],
2465 ));
2466 let autoclose = self.use_autoclose
2467 && snapshot.settings_at(selection.start, cx).use_autoclose;
2468 if autoclose
2469 && following_text_allows_autoclose
2470 && preceding_text_matches_prefix
2471 {
2472 let anchor = snapshot.anchor_before(selection.end);
2473 new_selections.push((selection.map(|_| anchor), text.len()));
2474 new_autoclose_regions.push((
2475 anchor,
2476 text.len(),
2477 selection.id,
2478 bracket_pair.clone(),
2479 ));
2480 edits.push((
2481 selection.range(),
2482 format!("{}{}", text, bracket_pair.end).into(),
2483 ));
2484 brace_inserted = true;
2485 continue;
2486 }
2487 }
2488
2489 if let Some(region) = autoclose_region {
2490 // If the selection is followed by an auto-inserted closing bracket,
2491 // then don't insert that closing bracket again; just move the selection
2492 // past the closing bracket.
2493 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2494 && text.as_ref() == region.pair.end.as_str();
2495 if should_skip {
2496 let anchor = snapshot.anchor_after(selection.end);
2497 new_selections
2498 .push((selection.map(|_| anchor), region.pair.end.len()));
2499 continue;
2500 }
2501 }
2502 }
2503 // If an opening bracket is 1 character long and is typed while
2504 // text is selected, then surround that text with the bracket pair.
2505 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2506 edits.push((selection.start..selection.start, text.clone()));
2507 edits.push((
2508 selection.end..selection.end,
2509 bracket_pair.end.as_str().into(),
2510 ));
2511 brace_inserted = true;
2512 new_selections.push((
2513 Selection {
2514 id: selection.id,
2515 start: snapshot.anchor_after(selection.start),
2516 end: snapshot.anchor_before(selection.end),
2517 reversed: selection.reversed,
2518 goal: selection.goal,
2519 },
2520 0,
2521 ));
2522 continue;
2523 }
2524 }
2525 }
2526
2527 if self.auto_replace_emoji_shortcode
2528 && selection.is_empty()
2529 && text.as_ref().ends_with(':')
2530 {
2531 if let Some(possible_emoji_short_code) =
2532 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2533 {
2534 if !possible_emoji_short_code.is_empty() {
2535 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2536 let emoji_shortcode_start = Point::new(
2537 selection.start.row,
2538 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2539 );
2540
2541 // Remove shortcode from buffer
2542 edits.push((
2543 emoji_shortcode_start..selection.start,
2544 "".to_string().into(),
2545 ));
2546 new_selections.push((
2547 Selection {
2548 id: selection.id,
2549 start: snapshot.anchor_after(emoji_shortcode_start),
2550 end: snapshot.anchor_before(selection.start),
2551 reversed: selection.reversed,
2552 goal: selection.goal,
2553 },
2554 0,
2555 ));
2556
2557 // Insert emoji
2558 let selection_start_anchor = snapshot.anchor_after(selection.start);
2559 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2560 edits.push((selection.start..selection.end, emoji.to_string().into()));
2561
2562 continue;
2563 }
2564 }
2565 }
2566 }
2567
2568 // If not handling any auto-close operation, then just replace the selected
2569 // text with the given input and move the selection to the end of the
2570 // newly inserted text.
2571 let anchor = snapshot.anchor_after(selection.end);
2572 new_selections.push((selection.map(|_| anchor), 0));
2573 edits.push((selection.start..selection.end, text.clone()));
2574 }
2575
2576 drop(snapshot);
2577 self.transact(cx, |this, cx| {
2578 this.buffer.update(cx, |buffer, cx| {
2579 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2580 });
2581
2582 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2583 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2584 let snapshot = this.buffer.read(cx).read(cx);
2585 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2586 .zip(new_selection_deltas)
2587 .map(|(selection, delta)| Selection {
2588 id: selection.id,
2589 start: selection.start + delta,
2590 end: selection.end + delta,
2591 reversed: selection.reversed,
2592 goal: SelectionGoal::None,
2593 })
2594 .collect::<Vec<_>>();
2595
2596 let mut i = 0;
2597 for (position, delta, selection_id, pair) in new_autoclose_regions {
2598 let position = position.to_offset(&snapshot) + delta;
2599 let start = snapshot.anchor_before(position);
2600 let end = snapshot.anchor_after(position);
2601 while let Some(existing_state) = this.autoclose_regions.get(i) {
2602 match existing_state.range.start.cmp(&start, &snapshot) {
2603 Ordering::Less => i += 1,
2604 Ordering::Greater => break,
2605 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2606 Ordering::Less => i += 1,
2607 Ordering::Equal => break,
2608 Ordering::Greater => break,
2609 },
2610 }
2611 }
2612 this.autoclose_regions.insert(
2613 i,
2614 AutocloseRegion {
2615 selection_id,
2616 range: start..end,
2617 pair,
2618 },
2619 );
2620 }
2621
2622 drop(snapshot);
2623 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2624 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2625
2626 if brace_inserted {
2627 // If we inserted a brace while composing text (i.e. typing `"` on a
2628 // Brazilian keyboard), exit the composing state because most likely
2629 // the user wanted to surround the selection.
2630 this.unmark_text(cx);
2631 } else if EditorSettings::get_global(cx).use_on_type_format {
2632 if let Some(on_type_format_task) =
2633 this.trigger_on_type_formatting(text.to_string(), cx)
2634 {
2635 on_type_format_task.detach_and_log_err(cx);
2636 }
2637 }
2638
2639 if had_active_copilot_suggestion {
2640 this.refresh_copilot_suggestions(true, cx);
2641 if !this.has_active_copilot_suggestion(cx) {
2642 this.trigger_completion_on_input(&text, cx);
2643 }
2644 } else {
2645 this.trigger_completion_on_input(&text, cx);
2646 this.refresh_copilot_suggestions(true, cx);
2647 }
2648 });
2649 }
2650
2651 fn find_possible_emoji_shortcode_at_position(
2652 snapshot: &MultiBufferSnapshot,
2653 position: Point,
2654 ) -> Option<String> {
2655 let mut chars = Vec::new();
2656 let mut found_colon = false;
2657 for char in snapshot.reversed_chars_at(position).take(100) {
2658 // Found a possible emoji shortcode in the middle of the buffer
2659 if found_colon {
2660 if char.is_whitespace() {
2661 chars.reverse();
2662 return Some(chars.iter().collect());
2663 }
2664 // If the previous character is not a whitespace, we are in the middle of a word
2665 // and we only want to complete the shortcode if the word is made up of other emojis
2666 let mut containing_word = String::new();
2667 for ch in snapshot
2668 .reversed_chars_at(position)
2669 .skip(chars.len() + 1)
2670 .take(100)
2671 {
2672 if ch.is_whitespace() {
2673 break;
2674 }
2675 containing_word.push(ch);
2676 }
2677 let containing_word = containing_word.chars().rev().collect::<String>();
2678 if util::word_consists_of_emojis(containing_word.as_str()) {
2679 chars.reverse();
2680 return Some(chars.iter().collect());
2681 }
2682 }
2683
2684 if char.is_whitespace() || !char.is_ascii() {
2685 return None;
2686 }
2687 if char == ':' {
2688 found_colon = true;
2689 } else {
2690 chars.push(char);
2691 }
2692 }
2693 // Found a possible emoji shortcode at the beginning of the buffer
2694 chars.reverse();
2695 Some(chars.iter().collect())
2696 }
2697
2698 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2699 self.transact(cx, |this, cx| {
2700 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2701 let selections = this.selections.all::<usize>(cx);
2702 let multi_buffer = this.buffer.read(cx);
2703 let buffer = multi_buffer.snapshot(cx);
2704 selections
2705 .iter()
2706 .map(|selection| {
2707 let start_point = selection.start.to_point(&buffer);
2708 let mut indent = buffer.indent_size_for_line(start_point.row);
2709 indent.len = cmp::min(indent.len, start_point.column);
2710 let start = selection.start;
2711 let end = selection.end;
2712 let is_cursor = start == end;
2713 let language_scope = buffer.language_scope_at(start);
2714 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2715 &language_scope
2716 {
2717 let leading_whitespace_len = buffer
2718 .reversed_chars_at(start)
2719 .take_while(|c| c.is_whitespace() && *c != '\n')
2720 .map(|c| c.len_utf8())
2721 .sum::<usize>();
2722
2723 let trailing_whitespace_len = buffer
2724 .chars_at(end)
2725 .take_while(|c| c.is_whitespace() && *c != '\n')
2726 .map(|c| c.len_utf8())
2727 .sum::<usize>();
2728
2729 let insert_extra_newline =
2730 language.brackets().any(|(pair, enabled)| {
2731 let pair_start = pair.start.trim_end();
2732 let pair_end = pair.end.trim_start();
2733
2734 enabled
2735 && pair.newline
2736 && buffer.contains_str_at(
2737 end + trailing_whitespace_len,
2738 pair_end,
2739 )
2740 && buffer.contains_str_at(
2741 (start - leading_whitespace_len)
2742 .saturating_sub(pair_start.len()),
2743 pair_start,
2744 )
2745 });
2746 // Comment extension on newline is allowed only for cursor selections
2747 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2748 let is_comment_extension_enabled =
2749 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2750 is_cursor && is_comment_extension_enabled
2751 });
2752 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2753 let max_len_of_delimiter =
2754 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2755 let (snapshot, range) =
2756 buffer.buffer_line_for_row(start_point.row)?;
2757
2758 let mut index_of_first_non_whitespace = 0;
2759 let comment_candidate = snapshot
2760 .chars_for_range(range)
2761 .skip_while(|c| {
2762 let should_skip = c.is_whitespace();
2763 if should_skip {
2764 index_of_first_non_whitespace += 1;
2765 }
2766 should_skip
2767 })
2768 .take(max_len_of_delimiter)
2769 .collect::<String>();
2770 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2771 comment_candidate.starts_with(comment_prefix.as_ref())
2772 })?;
2773 let cursor_is_placed_after_comment_marker =
2774 index_of_first_non_whitespace + comment_prefix.len()
2775 <= start_point.column as usize;
2776 if cursor_is_placed_after_comment_marker {
2777 Some(comment_prefix.clone())
2778 } else {
2779 None
2780 }
2781 };
2782 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2783 get_comment_delimiter(delimiters)
2784 } else {
2785 None
2786 };
2787 (comment_delimiter, insert_extra_newline)
2788 } else {
2789 (None, false)
2790 };
2791
2792 let capacity_for_delimiter = comment_delimiter
2793 .as_deref()
2794 .map(str::len)
2795 .unwrap_or_default();
2796 let mut new_text =
2797 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2798 new_text.push_str("\n");
2799 new_text.extend(indent.chars());
2800 if let Some(delimiter) = &comment_delimiter {
2801 new_text.push_str(&delimiter);
2802 }
2803 if insert_extra_newline {
2804 new_text = new_text.repeat(2);
2805 }
2806
2807 let anchor = buffer.anchor_after(end);
2808 let new_selection = selection.map(|_| anchor);
2809 (
2810 (start..end, new_text),
2811 (insert_extra_newline, new_selection),
2812 )
2813 })
2814 .unzip()
2815 };
2816
2817 this.edit_with_autoindent(edits, cx);
2818 let buffer = this.buffer.read(cx).snapshot(cx);
2819 let new_selections = selection_fixup_info
2820 .into_iter()
2821 .map(|(extra_newline_inserted, new_selection)| {
2822 let mut cursor = new_selection.end.to_point(&buffer);
2823 if extra_newline_inserted {
2824 cursor.row -= 1;
2825 cursor.column = buffer.line_len(cursor.row);
2826 }
2827 new_selection.map(|_| cursor)
2828 })
2829 .collect();
2830
2831 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2832 this.refresh_copilot_suggestions(true, cx);
2833 });
2834 }
2835
2836 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2837 let buffer = self.buffer.read(cx);
2838 let snapshot = buffer.snapshot(cx);
2839
2840 let mut edits = Vec::new();
2841 let mut rows = Vec::new();
2842
2843 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
2844 let cursor = selection.head();
2845 let row = cursor.row;
2846
2847 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2848
2849 let newline = "\n".to_string();
2850 edits.push((start_of_line..start_of_line, newline));
2851
2852 rows.push(row + rows_inserted as u32);
2853 }
2854
2855 self.transact(cx, |editor, cx| {
2856 editor.edit(edits, cx);
2857
2858 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2859 let mut index = 0;
2860 s.move_cursors_with(|map, _, _| {
2861 let row = rows[index];
2862 index += 1;
2863
2864 let point = Point::new(row, 0);
2865 let boundary = map.next_line_boundary(point).1;
2866 let clipped = map.clip_point(boundary, Bias::Left);
2867
2868 (clipped, SelectionGoal::None)
2869 });
2870 });
2871
2872 let mut indent_edits = Vec::new();
2873 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2874 for row in rows {
2875 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2876 for (row, indent) in indents {
2877 if indent.len == 0 {
2878 continue;
2879 }
2880
2881 let text = match indent.kind {
2882 IndentKind::Space => " ".repeat(indent.len as usize),
2883 IndentKind::Tab => "\t".repeat(indent.len as usize),
2884 };
2885 let point = Point::new(row, 0);
2886 indent_edits.push((point..point, text));
2887 }
2888 }
2889 editor.edit(indent_edits, cx);
2890 });
2891 }
2892
2893 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2894 let buffer = self.buffer.read(cx);
2895 let snapshot = buffer.snapshot(cx);
2896
2897 let mut edits = Vec::new();
2898 let mut rows = Vec::new();
2899 let mut rows_inserted = 0;
2900
2901 for selection in self.selections.all_adjusted(cx) {
2902 let cursor = selection.head();
2903 let row = cursor.row;
2904
2905 let point = Point::new(row + 1, 0);
2906 let start_of_line = snapshot.clip_point(point, Bias::Left);
2907
2908 let newline = "\n".to_string();
2909 edits.push((start_of_line..start_of_line, newline));
2910
2911 rows_inserted += 1;
2912 rows.push(row + rows_inserted);
2913 }
2914
2915 self.transact(cx, |editor, cx| {
2916 editor.edit(edits, cx);
2917
2918 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2919 let mut index = 0;
2920 s.move_cursors_with(|map, _, _| {
2921 let row = rows[index];
2922 index += 1;
2923
2924 let point = Point::new(row, 0);
2925 let boundary = map.next_line_boundary(point).1;
2926 let clipped = map.clip_point(boundary, Bias::Left);
2927
2928 (clipped, SelectionGoal::None)
2929 });
2930 });
2931
2932 let mut indent_edits = Vec::new();
2933 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2934 for row in rows {
2935 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2936 for (row, indent) in indents {
2937 if indent.len == 0 {
2938 continue;
2939 }
2940
2941 let text = match indent.kind {
2942 IndentKind::Space => " ".repeat(indent.len as usize),
2943 IndentKind::Tab => "\t".repeat(indent.len as usize),
2944 };
2945 let point = Point::new(row, 0);
2946 indent_edits.push((point..point, text));
2947 }
2948 }
2949 editor.edit(indent_edits, cx);
2950 });
2951 }
2952
2953 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2954 self.insert_with_autoindent_mode(
2955 text,
2956 Some(AutoindentMode::Block {
2957 original_indent_columns: Vec::new(),
2958 }),
2959 cx,
2960 );
2961 }
2962
2963 fn insert_with_autoindent_mode(
2964 &mut self,
2965 text: &str,
2966 autoindent_mode: Option<AutoindentMode>,
2967 cx: &mut ViewContext<Self>,
2968 ) {
2969 if self.read_only(cx) {
2970 return;
2971 }
2972
2973 let text: Arc<str> = text.into();
2974 self.transact(cx, |this, cx| {
2975 let old_selections = this.selections.all_adjusted(cx);
2976 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2977 let anchors = {
2978 let snapshot = buffer.read(cx);
2979 old_selections
2980 .iter()
2981 .map(|s| {
2982 let anchor = snapshot.anchor_after(s.head());
2983 s.map(|_| anchor)
2984 })
2985 .collect::<Vec<_>>()
2986 };
2987 buffer.edit(
2988 old_selections
2989 .iter()
2990 .map(|s| (s.start..s.end, text.clone())),
2991 autoindent_mode,
2992 cx,
2993 );
2994 anchors
2995 });
2996
2997 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2998 s.select_anchors(selection_anchors);
2999 })
3000 });
3001 }
3002
3003 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3004 if !EditorSettings::get_global(cx).show_completions_on_input {
3005 return;
3006 }
3007
3008 let selection = self.selections.newest_anchor();
3009 if self
3010 .buffer
3011 .read(cx)
3012 .is_completion_trigger(selection.head(), text, cx)
3013 {
3014 self.show_completions(&ShowCompletions, cx);
3015 } else {
3016 self.hide_context_menu(cx);
3017 }
3018 }
3019
3020 /// If any empty selections is touching the start of its innermost containing autoclose
3021 /// region, expand it to select the brackets.
3022 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3023 let selections = self.selections.all::<usize>(cx);
3024 let buffer = self.buffer.read(cx).read(cx);
3025 let mut new_selections = Vec::new();
3026 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
3027 if let (Some(region), true) = (region, selection.is_empty()) {
3028 let mut range = region.range.to_offset(&buffer);
3029 if selection.start == range.start {
3030 if range.start >= region.pair.start.len() {
3031 range.start -= region.pair.start.len();
3032 if buffer.contains_str_at(range.start, ®ion.pair.start) {
3033 if buffer.contains_str_at(range.end, ®ion.pair.end) {
3034 range.end += region.pair.end.len();
3035 selection.start = range.start;
3036 selection.end = range.end;
3037 }
3038 }
3039 }
3040 }
3041 }
3042 new_selections.push(selection);
3043 }
3044
3045 drop(buffer);
3046 self.change_selections(None, cx, |selections| selections.select(new_selections));
3047 }
3048
3049 /// Iterate the given selections, and for each one, find the smallest surrounding
3050 /// autoclose region. This uses the ordering of the selections and the autoclose
3051 /// regions to avoid repeated comparisons.
3052 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3053 &'a self,
3054 selections: impl IntoIterator<Item = Selection<D>>,
3055 buffer: &'a MultiBufferSnapshot,
3056 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3057 let mut i = 0;
3058 let mut regions = self.autoclose_regions.as_slice();
3059 selections.into_iter().map(move |selection| {
3060 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3061
3062 let mut enclosing = None;
3063 while let Some(pair_state) = regions.get(i) {
3064 if pair_state.range.end.to_offset(buffer) < range.start {
3065 regions = ®ions[i + 1..];
3066 i = 0;
3067 } else if pair_state.range.start.to_offset(buffer) > range.end {
3068 break;
3069 } else {
3070 if pair_state.selection_id == selection.id {
3071 enclosing = Some(pair_state);
3072 }
3073 i += 1;
3074 }
3075 }
3076
3077 (selection.clone(), enclosing)
3078 })
3079 }
3080
3081 /// Remove any autoclose regions that no longer contain their selection.
3082 fn invalidate_autoclose_regions(
3083 &mut self,
3084 mut selections: &[Selection<Anchor>],
3085 buffer: &MultiBufferSnapshot,
3086 ) {
3087 self.autoclose_regions.retain(|state| {
3088 let mut i = 0;
3089 while let Some(selection) = selections.get(i) {
3090 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3091 selections = &selections[1..];
3092 continue;
3093 }
3094 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3095 break;
3096 }
3097 if selection.id == state.selection_id {
3098 return true;
3099 } else {
3100 i += 1;
3101 }
3102 }
3103 false
3104 });
3105 }
3106
3107 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3108 let offset = position.to_offset(buffer);
3109 let (word_range, kind) = buffer.surrounding_word(offset);
3110 if offset > word_range.start && kind == Some(CharKind::Word) {
3111 Some(
3112 buffer
3113 .text_for_range(word_range.start..offset)
3114 .collect::<String>(),
3115 )
3116 } else {
3117 None
3118 }
3119 }
3120
3121 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3122 self.refresh_inlay_hints(
3123 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3124 cx,
3125 );
3126 }
3127
3128 pub fn inlay_hints_enabled(&self) -> bool {
3129 self.inlay_hint_cache.enabled
3130 }
3131
3132 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3133 if self.project.is_none() || self.mode != EditorMode::Full {
3134 return;
3135 }
3136
3137 let reason_description = reason.description();
3138 let ignore_debounce = matches!(
3139 reason,
3140 InlayHintRefreshReason::SettingsChange(_)
3141 | InlayHintRefreshReason::Toggle(_)
3142 | InlayHintRefreshReason::ExcerptsRemoved(_)
3143 );
3144 let (invalidate_cache, required_languages) = match reason {
3145 InlayHintRefreshReason::Toggle(enabled) => {
3146 self.inlay_hint_cache.enabled = enabled;
3147 if enabled {
3148 (InvalidationStrategy::RefreshRequested, None)
3149 } else {
3150 self.inlay_hint_cache.clear();
3151 self.splice_inlays(
3152 self.visible_inlay_hints(cx)
3153 .iter()
3154 .map(|inlay| inlay.id)
3155 .collect(),
3156 Vec::new(),
3157 cx,
3158 );
3159 return;
3160 }
3161 }
3162 InlayHintRefreshReason::SettingsChange(new_settings) => {
3163 match self.inlay_hint_cache.update_settings(
3164 &self.buffer,
3165 new_settings,
3166 self.visible_inlay_hints(cx),
3167 cx,
3168 ) {
3169 ControlFlow::Break(Some(InlaySplice {
3170 to_remove,
3171 to_insert,
3172 })) => {
3173 self.splice_inlays(to_remove, to_insert, cx);
3174 return;
3175 }
3176 ControlFlow::Break(None) => return,
3177 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3178 }
3179 }
3180 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3181 if let Some(InlaySplice {
3182 to_remove,
3183 to_insert,
3184 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3185 {
3186 self.splice_inlays(to_remove, to_insert, cx);
3187 }
3188 return;
3189 }
3190 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3191 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3192 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3193 }
3194 InlayHintRefreshReason::RefreshRequested => {
3195 (InvalidationStrategy::RefreshRequested, None)
3196 }
3197 };
3198
3199 if let Some(InlaySplice {
3200 to_remove,
3201 to_insert,
3202 }) = self.inlay_hint_cache.spawn_hint_refresh(
3203 reason_description,
3204 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3205 invalidate_cache,
3206 ignore_debounce,
3207 cx,
3208 ) {
3209 self.splice_inlays(to_remove, to_insert, cx);
3210 }
3211 }
3212
3213 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3214 self.display_map
3215 .read(cx)
3216 .current_inlays()
3217 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3218 .cloned()
3219 .collect()
3220 }
3221
3222 pub fn excerpts_for_inlay_hints_query(
3223 &self,
3224 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3225 cx: &mut ViewContext<Editor>,
3226 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3227 let Some(project) = self.project.as_ref() else {
3228 return HashMap::default();
3229 };
3230 let project = project.read(cx);
3231 let multi_buffer = self.buffer().read(cx);
3232 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3233 let multi_buffer_visible_start = self
3234 .scroll_manager
3235 .anchor()
3236 .anchor
3237 .to_point(&multi_buffer_snapshot);
3238 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3239 multi_buffer_visible_start
3240 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3241 Bias::Left,
3242 );
3243 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3244 multi_buffer
3245 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3246 .into_iter()
3247 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3248 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3249 let buffer = buffer_handle.read(cx);
3250 let buffer_file = project::File::from_dyn(buffer.file())?;
3251 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3252 let worktree_entry = buffer_worktree
3253 .read(cx)
3254 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3255 if worktree_entry.is_ignored {
3256 return None;
3257 }
3258
3259 let language = buffer.language()?;
3260 if let Some(restrict_to_languages) = restrict_to_languages {
3261 if !restrict_to_languages.contains(language) {
3262 return None;
3263 }
3264 }
3265 Some((
3266 excerpt_id,
3267 (
3268 buffer_handle,
3269 buffer.version().clone(),
3270 excerpt_visible_range,
3271 ),
3272 ))
3273 })
3274 .collect()
3275 }
3276
3277 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3278 TextLayoutDetails {
3279 text_system: cx.text_system().clone(),
3280 editor_style: self.style.clone().unwrap(),
3281 rem_size: cx.rem_size(),
3282 scroll_anchor: self.scroll_manager.anchor(),
3283 visible_rows: self.visible_line_count(),
3284 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3285 }
3286 }
3287
3288 fn splice_inlays(
3289 &self,
3290 to_remove: Vec<InlayId>,
3291 to_insert: Vec<Inlay>,
3292 cx: &mut ViewContext<Self>,
3293 ) {
3294 self.display_map.update(cx, |display_map, cx| {
3295 display_map.splice_inlays(to_remove, to_insert, cx);
3296 });
3297 cx.notify();
3298 }
3299
3300 fn trigger_on_type_formatting(
3301 &self,
3302 input: String,
3303 cx: &mut ViewContext<Self>,
3304 ) -> Option<Task<Result<()>>> {
3305 if input.len() != 1 {
3306 return None;
3307 }
3308
3309 let project = self.project.as_ref()?;
3310 let position = self.selections.newest_anchor().head();
3311 let (buffer, buffer_position) = self
3312 .buffer
3313 .read(cx)
3314 .text_anchor_for_position(position, cx)?;
3315
3316 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3317 // hence we do LSP request & edit on host side only — add formats to host's history.
3318 let push_to_lsp_host_history = true;
3319 // If this is not the host, append its history with new edits.
3320 let push_to_client_history = project.read(cx).is_remote();
3321
3322 let on_type_formatting = project.update(cx, |project, cx| {
3323 project.on_type_format(
3324 buffer.clone(),
3325 buffer_position,
3326 input,
3327 push_to_lsp_host_history,
3328 cx,
3329 )
3330 });
3331 Some(cx.spawn(|editor, mut cx| async move {
3332 if let Some(transaction) = on_type_formatting.await? {
3333 if push_to_client_history {
3334 buffer
3335 .update(&mut cx, |buffer, _| {
3336 buffer.push_transaction(transaction, Instant::now());
3337 })
3338 .ok();
3339 }
3340 editor.update(&mut cx, |editor, cx| {
3341 editor.refresh_document_highlights(cx);
3342 })?;
3343 }
3344 Ok(())
3345 }))
3346 }
3347
3348 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3349 if self.pending_rename.is_some() {
3350 return;
3351 }
3352
3353 let Some(provider) = self.completion_provider.as_ref() else {
3354 return;
3355 };
3356
3357 let position = self.selections.newest_anchor().head();
3358 let (buffer, buffer_position) =
3359 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3360 output
3361 } else {
3362 return;
3363 };
3364
3365 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3366 let completions = provider.completions(&buffer, buffer_position, cx);
3367
3368 let id = post_inc(&mut self.next_completion_id);
3369 let task = cx.spawn(|this, mut cx| {
3370 async move {
3371 let completions = completions.await.log_err();
3372 let menu = if let Some(completions) = completions {
3373 let mut menu = CompletionsMenu {
3374 id,
3375 initial_position: position,
3376 match_candidates: completions
3377 .iter()
3378 .enumerate()
3379 .map(|(id, completion)| {
3380 StringMatchCandidate::new(
3381 id,
3382 completion.label.text[completion.label.filter_range.clone()]
3383 .into(),
3384 )
3385 })
3386 .collect(),
3387 buffer,
3388 completions: Arc::new(RwLock::new(completions.into())),
3389 matches: Vec::new().into(),
3390 selected_item: 0,
3391 scroll_handle: UniformListScrollHandle::new(),
3392 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3393 DebouncedDelay::new(),
3394 )),
3395 };
3396 menu.filter(query.as_deref(), cx.background_executor().clone())
3397 .await;
3398
3399 if menu.matches.is_empty() {
3400 None
3401 } else {
3402 this.update(&mut cx, |editor, cx| {
3403 let completions = menu.completions.clone();
3404 let matches = menu.matches.clone();
3405
3406 let delay_ms = EditorSettings::get_global(cx)
3407 .completion_documentation_secondary_query_debounce;
3408 let delay = Duration::from_millis(delay_ms);
3409
3410 editor
3411 .completion_documentation_pre_resolve_debounce
3412 .fire_new(delay, cx, |editor, cx| {
3413 CompletionsMenu::pre_resolve_completion_documentation(
3414 completions,
3415 matches,
3416 editor,
3417 cx,
3418 )
3419 });
3420 })
3421 .ok();
3422 Some(menu)
3423 }
3424 } else {
3425 None
3426 };
3427
3428 this.update(&mut cx, |this, cx| {
3429 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3430
3431 let mut context_menu = this.context_menu.write();
3432 match context_menu.as_ref() {
3433 None => {}
3434
3435 Some(ContextMenu::Completions(prev_menu)) => {
3436 if prev_menu.id > id {
3437 return;
3438 }
3439 }
3440
3441 _ => return,
3442 }
3443
3444 if this.focus_handle.is_focused(cx) && menu.is_some() {
3445 let menu = menu.unwrap();
3446 *context_menu = Some(ContextMenu::Completions(menu));
3447 drop(context_menu);
3448 this.discard_copilot_suggestion(cx);
3449 cx.notify();
3450 } else if this.completion_tasks.len() <= 1 {
3451 // If there are no more completion tasks and the last menu was
3452 // empty, we should hide it. If it was already hidden, we should
3453 // also show the copilot suggestion when available.
3454 drop(context_menu);
3455 if this.hide_context_menu(cx).is_none() {
3456 this.update_visible_copilot_suggestion(cx);
3457 }
3458 }
3459 })?;
3460
3461 Ok::<_, anyhow::Error>(())
3462 }
3463 .log_err()
3464 });
3465
3466 self.completion_tasks.push((id, task));
3467 }
3468
3469 pub fn confirm_completion(
3470 &mut self,
3471 action: &ConfirmCompletion,
3472 cx: &mut ViewContext<Self>,
3473 ) -> Option<Task<Result<()>>> {
3474 use language::ToOffset as _;
3475
3476 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3477 menu
3478 } else {
3479 return None;
3480 };
3481
3482 let mat = completions_menu
3483 .matches
3484 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3485 let buffer_handle = completions_menu.buffer;
3486 let completions = completions_menu.completions.read();
3487 let completion = completions.get(mat.candidate_id)?;
3488 cx.stop_propagation();
3489
3490 let snippet;
3491 let text;
3492 if completion.is_snippet() {
3493 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3494 text = snippet.as_ref().unwrap().text.clone();
3495 } else {
3496 snippet = None;
3497 text = completion.new_text.clone();
3498 };
3499 let selections = self.selections.all::<usize>(cx);
3500 let buffer = buffer_handle.read(cx);
3501 let old_range = completion.old_range.to_offset(buffer);
3502 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3503
3504 let newest_selection = self.selections.newest_anchor();
3505 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3506 return None;
3507 }
3508
3509 let lookbehind = newest_selection
3510 .start
3511 .text_anchor
3512 .to_offset(buffer)
3513 .saturating_sub(old_range.start);
3514 let lookahead = old_range
3515 .end
3516 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3517 let mut common_prefix_len = old_text
3518 .bytes()
3519 .zip(text.bytes())
3520 .take_while(|(a, b)| a == b)
3521 .count();
3522
3523 let snapshot = self.buffer.read(cx).snapshot(cx);
3524 let mut range_to_replace: Option<Range<isize>> = None;
3525 let mut ranges = Vec::new();
3526 for selection in &selections {
3527 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3528 let start = selection.start.saturating_sub(lookbehind);
3529 let end = selection.end + lookahead;
3530 if selection.id == newest_selection.id {
3531 range_to_replace = Some(
3532 ((start + common_prefix_len) as isize - selection.start as isize)
3533 ..(end as isize - selection.start as isize),
3534 );
3535 }
3536 ranges.push(start + common_prefix_len..end);
3537 } else {
3538 common_prefix_len = 0;
3539 ranges.clear();
3540 ranges.extend(selections.iter().map(|s| {
3541 if s.id == newest_selection.id {
3542 range_to_replace = Some(
3543 old_range.start.to_offset_utf16(&snapshot).0 as isize
3544 - selection.start as isize
3545 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3546 - selection.start as isize,
3547 );
3548 old_range.clone()
3549 } else {
3550 s.start..s.end
3551 }
3552 }));
3553 break;
3554 }
3555 }
3556 let text = &text[common_prefix_len..];
3557
3558 cx.emit(EditorEvent::InputHandled {
3559 utf16_range_to_replace: range_to_replace,
3560 text: text.into(),
3561 });
3562
3563 self.transact(cx, |this, cx| {
3564 if let Some(mut snippet) = snippet {
3565 snippet.text = text.to_string();
3566 for tabstop in snippet.tabstops.iter_mut().flatten() {
3567 tabstop.start -= common_prefix_len as isize;
3568 tabstop.end -= common_prefix_len as isize;
3569 }
3570
3571 this.insert_snippet(&ranges, snippet, cx).log_err();
3572 } else {
3573 this.buffer.update(cx, |buffer, cx| {
3574 buffer.edit(
3575 ranges.iter().map(|range| (range.clone(), text)),
3576 this.autoindent_mode.clone(),
3577 cx,
3578 );
3579 });
3580 }
3581
3582 this.refresh_copilot_suggestions(true, cx);
3583 });
3584
3585 let provider = self.completion_provider.as_ref()?;
3586 let apply_edits = provider.apply_additional_edits_for_completion(
3587 buffer_handle,
3588 completion.clone(),
3589 true,
3590 cx,
3591 );
3592 Some(cx.foreground_executor().spawn(async move {
3593 apply_edits.await?;
3594 Ok(())
3595 }))
3596 }
3597
3598 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3599 let mut context_menu = self.context_menu.write();
3600 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3601 *context_menu = None;
3602 cx.notify();
3603 return;
3604 }
3605 drop(context_menu);
3606
3607 let deployed_from_indicator = action.deployed_from_indicator;
3608 let mut task = self.code_actions_task.take();
3609 cx.spawn(|this, mut cx| async move {
3610 while let Some(prev_task) = task {
3611 prev_task.await;
3612 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3613 }
3614
3615 this.update(&mut cx, |this, cx| {
3616 if this.focus_handle.is_focused(cx) {
3617 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3618 this.completion_tasks.clear();
3619 this.discard_copilot_suggestion(cx);
3620 *this.context_menu.write() =
3621 Some(ContextMenu::CodeActions(CodeActionsMenu {
3622 buffer,
3623 actions,
3624 selected_item: Default::default(),
3625 scroll_handle: UniformListScrollHandle::default(),
3626 deployed_from_indicator,
3627 }));
3628 cx.notify();
3629 }
3630 }
3631 })?;
3632
3633 Ok::<_, anyhow::Error>(())
3634 })
3635 .detach_and_log_err(cx);
3636 }
3637
3638 pub fn confirm_code_action(
3639 &mut self,
3640 action: &ConfirmCodeAction,
3641 cx: &mut ViewContext<Self>,
3642 ) -> Option<Task<Result<()>>> {
3643 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3644 menu
3645 } else {
3646 return None;
3647 };
3648 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3649 let action = actions_menu.actions.get(action_ix)?.clone();
3650 let title = action.lsp_action.title.clone();
3651 let buffer = actions_menu.buffer;
3652 let workspace = self.workspace()?;
3653
3654 let apply_code_actions = workspace
3655 .read(cx)
3656 .project()
3657 .clone()
3658 .update(cx, |project, cx| {
3659 project.apply_code_action(buffer, action, true, cx)
3660 });
3661 let workspace = workspace.downgrade();
3662 Some(cx.spawn(|editor, cx| async move {
3663 let project_transaction = apply_code_actions.await?;
3664 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3665 }))
3666 }
3667
3668 async fn open_project_transaction(
3669 this: &WeakView<Editor>,
3670 workspace: WeakView<Workspace>,
3671 transaction: ProjectTransaction,
3672 title: String,
3673 mut cx: AsyncWindowContext,
3674 ) -> Result<()> {
3675 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3676
3677 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3678 cx.update(|cx| {
3679 entries.sort_unstable_by_key(|(buffer, _)| {
3680 buffer.read(cx).file().map(|f| f.path().clone())
3681 });
3682 })?;
3683
3684 // If the project transaction's edits are all contained within this editor, then
3685 // avoid opening a new editor to display them.
3686
3687 if let Some((buffer, transaction)) = entries.first() {
3688 if entries.len() == 1 {
3689 let excerpt = this.update(&mut cx, |editor, cx| {
3690 editor
3691 .buffer()
3692 .read(cx)
3693 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3694 })?;
3695 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3696 if excerpted_buffer == *buffer {
3697 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3698 let excerpt_range = excerpt_range.to_offset(buffer);
3699 buffer
3700 .edited_ranges_for_transaction::<usize>(transaction)
3701 .all(|range| {
3702 excerpt_range.start <= range.start
3703 && excerpt_range.end >= range.end
3704 })
3705 })?;
3706
3707 if all_edits_within_excerpt {
3708 return Ok(());
3709 }
3710 }
3711 }
3712 }
3713 } else {
3714 return Ok(());
3715 }
3716
3717 let mut ranges_to_highlight = Vec::new();
3718 let excerpt_buffer = cx.new_model(|cx| {
3719 let mut multibuffer =
3720 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3721 for (buffer_handle, transaction) in &entries {
3722 let buffer = buffer_handle.read(cx);
3723 ranges_to_highlight.extend(
3724 multibuffer.push_excerpts_with_context_lines(
3725 buffer_handle.clone(),
3726 buffer
3727 .edited_ranges_for_transaction::<usize>(transaction)
3728 .collect(),
3729 1,
3730 cx,
3731 ),
3732 );
3733 }
3734 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3735 multibuffer
3736 })?;
3737
3738 workspace.update(&mut cx, |workspace, cx| {
3739 let project = workspace.project().clone();
3740 let editor =
3741 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3742 workspace.add_item_to_active_pane(Box::new(editor.clone()), cx);
3743 editor.update(cx, |editor, cx| {
3744 editor.highlight_background::<Self>(
3745 ranges_to_highlight,
3746 |theme| theme.editor_highlighted_line_background,
3747 cx,
3748 );
3749 });
3750 })?;
3751
3752 Ok(())
3753 }
3754
3755 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3756 let project = self.project.clone()?;
3757 let buffer = self.buffer.read(cx);
3758 let newest_selection = self.selections.newest_anchor().clone();
3759 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3760 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3761 if start_buffer != end_buffer {
3762 return None;
3763 }
3764
3765 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3766 cx.background_executor()
3767 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3768 .await;
3769
3770 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3771 project.code_actions(&start_buffer, start..end, cx)
3772 }) {
3773 code_actions.await.log_err()
3774 } else {
3775 None
3776 };
3777
3778 this.update(&mut cx, |this, cx| {
3779 this.available_code_actions = actions.and_then(|actions| {
3780 if actions.is_empty() {
3781 None
3782 } else {
3783 Some((start_buffer, actions.into()))
3784 }
3785 });
3786 cx.notify();
3787 })
3788 .log_err();
3789 }));
3790 None
3791 }
3792
3793 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3794 if self.pending_rename.is_some() {
3795 return None;
3796 }
3797
3798 let project = self.project.clone()?;
3799 let buffer = self.buffer.read(cx);
3800 let newest_selection = self.selections.newest_anchor().clone();
3801 let cursor_position = newest_selection.head();
3802 let (cursor_buffer, cursor_buffer_position) =
3803 buffer.text_anchor_for_position(cursor_position, cx)?;
3804 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3805 if cursor_buffer != tail_buffer {
3806 return None;
3807 }
3808
3809 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3810 cx.background_executor()
3811 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3812 .await;
3813
3814 let highlights = if let Some(highlights) = project
3815 .update(&mut cx, |project, cx| {
3816 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3817 })
3818 .log_err()
3819 {
3820 highlights.await.log_err()
3821 } else {
3822 None
3823 };
3824
3825 if let Some(highlights) = highlights {
3826 this.update(&mut cx, |this, cx| {
3827 if this.pending_rename.is_some() {
3828 return;
3829 }
3830
3831 let buffer_id = cursor_position.buffer_id;
3832 let buffer = this.buffer.read(cx);
3833 if !buffer
3834 .text_anchor_for_position(cursor_position, cx)
3835 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3836 {
3837 return;
3838 }
3839
3840 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3841 let mut write_ranges = Vec::new();
3842 let mut read_ranges = Vec::new();
3843 for highlight in highlights {
3844 for (excerpt_id, excerpt_range) in
3845 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3846 {
3847 let start = highlight
3848 .range
3849 .start
3850 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3851 let end = highlight
3852 .range
3853 .end
3854 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3855 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3856 continue;
3857 }
3858
3859 let range = Anchor {
3860 buffer_id,
3861 excerpt_id: excerpt_id,
3862 text_anchor: start,
3863 }..Anchor {
3864 buffer_id,
3865 excerpt_id,
3866 text_anchor: end,
3867 };
3868 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3869 write_ranges.push(range);
3870 } else {
3871 read_ranges.push(range);
3872 }
3873 }
3874 }
3875
3876 this.highlight_background::<DocumentHighlightRead>(
3877 read_ranges,
3878 |theme| theme.editor_document_highlight_read_background,
3879 cx,
3880 );
3881 this.highlight_background::<DocumentHighlightWrite>(
3882 write_ranges,
3883 |theme| theme.editor_document_highlight_write_background,
3884 cx,
3885 );
3886 cx.notify();
3887 })
3888 .log_err();
3889 }
3890 }));
3891 None
3892 }
3893
3894 fn refresh_copilot_suggestions(
3895 &mut self,
3896 debounce: bool,
3897 cx: &mut ViewContext<Self>,
3898 ) -> Option<()> {
3899 let copilot = Copilot::global(cx)?;
3900 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3901 self.clear_copilot_suggestions(cx);
3902 return None;
3903 }
3904 self.update_visible_copilot_suggestion(cx);
3905
3906 let snapshot = self.buffer.read(cx).snapshot(cx);
3907 let cursor = self.selections.newest_anchor().head();
3908 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3909 self.clear_copilot_suggestions(cx);
3910 return None;
3911 }
3912
3913 let (buffer, buffer_position) =
3914 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3915 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3916 if debounce {
3917 cx.background_executor()
3918 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3919 .await;
3920 }
3921
3922 let completions = copilot
3923 .update(&mut cx, |copilot, cx| {
3924 copilot.completions(&buffer, buffer_position, cx)
3925 })
3926 .log_err()
3927 .unwrap_or(Task::ready(Ok(Vec::new())))
3928 .await
3929 .log_err()
3930 .into_iter()
3931 .flatten()
3932 .collect_vec();
3933
3934 this.update(&mut cx, |this, cx| {
3935 if !completions.is_empty() {
3936 this.copilot_state.cycled = false;
3937 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3938 this.copilot_state.completions.clear();
3939 this.copilot_state.active_completion_index = 0;
3940 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3941 for completion in completions {
3942 this.copilot_state.push_completion(completion);
3943 }
3944 this.update_visible_copilot_suggestion(cx);
3945 }
3946 })
3947 .log_err()?;
3948 Some(())
3949 });
3950
3951 Some(())
3952 }
3953
3954 fn cycle_copilot_suggestions(
3955 &mut self,
3956 direction: Direction,
3957 cx: &mut ViewContext<Self>,
3958 ) -> Option<()> {
3959 let copilot = Copilot::global(cx)?;
3960 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3961 return None;
3962 }
3963
3964 if self.copilot_state.cycled {
3965 self.copilot_state.cycle_completions(direction);
3966 self.update_visible_copilot_suggestion(cx);
3967 } else {
3968 let cursor = self.selections.newest_anchor().head();
3969 let (buffer, buffer_position) =
3970 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3971 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3972 let completions = copilot
3973 .update(&mut cx, |copilot, cx| {
3974 copilot.completions_cycling(&buffer, buffer_position, cx)
3975 })
3976 .log_err()?
3977 .await;
3978
3979 this.update(&mut cx, |this, cx| {
3980 this.copilot_state.cycled = true;
3981 for completion in completions.log_err().into_iter().flatten() {
3982 this.copilot_state.push_completion(completion);
3983 }
3984 this.copilot_state.cycle_completions(direction);
3985 this.update_visible_copilot_suggestion(cx);
3986 })
3987 .log_err()?;
3988
3989 Some(())
3990 });
3991 }
3992
3993 Some(())
3994 }
3995
3996 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3997 if !self.has_active_copilot_suggestion(cx) {
3998 self.refresh_copilot_suggestions(false, cx);
3999 return;
4000 }
4001
4002 self.update_visible_copilot_suggestion(cx);
4003 }
4004
4005 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4006 self.show_cursor_names(cx);
4007 }
4008
4009 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4010 self.show_cursor_names = true;
4011 cx.notify();
4012 cx.spawn(|this, mut cx| async move {
4013 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4014 this.update(&mut cx, |this, cx| {
4015 this.show_cursor_names = false;
4016 cx.notify()
4017 })
4018 .ok()
4019 })
4020 .detach();
4021 }
4022
4023 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
4024 if self.has_active_copilot_suggestion(cx) {
4025 self.cycle_copilot_suggestions(Direction::Next, cx);
4026 } else {
4027 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
4028 if is_copilot_disabled {
4029 cx.propagate();
4030 }
4031 }
4032 }
4033
4034 fn previous_copilot_suggestion(
4035 &mut self,
4036 _: &copilot::PreviousSuggestion,
4037 cx: &mut ViewContext<Self>,
4038 ) {
4039 if self.has_active_copilot_suggestion(cx) {
4040 self.cycle_copilot_suggestions(Direction::Prev, cx);
4041 } else {
4042 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
4043 if is_copilot_disabled {
4044 cx.propagate();
4045 }
4046 }
4047 }
4048
4049 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4050 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4051 if let Some((copilot, completion)) =
4052 Copilot::global(cx).zip(self.copilot_state.active_completion())
4053 {
4054 copilot
4055 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
4056 .detach_and_log_err(cx);
4057
4058 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
4059 }
4060 cx.emit(EditorEvent::InputHandled {
4061 utf16_range_to_replace: None,
4062 text: suggestion.text.to_string().into(),
4063 });
4064 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
4065 cx.notify();
4066 true
4067 } else {
4068 false
4069 }
4070 }
4071
4072 fn accept_partial_copilot_suggestion(
4073 &mut self,
4074 _: &AcceptPartialCopilotSuggestion,
4075 cx: &mut ViewContext<Self>,
4076 ) {
4077 if self.selections.count() == 1 && self.has_active_copilot_suggestion(cx) {
4078 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4079 let mut partial_suggestion = suggestion
4080 .text
4081 .chars()
4082 .by_ref()
4083 .take_while(|c| c.is_alphabetic())
4084 .collect::<String>();
4085 if partial_suggestion.is_empty() {
4086 partial_suggestion = suggestion
4087 .text
4088 .chars()
4089 .by_ref()
4090 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4091 .collect::<String>();
4092 }
4093
4094 cx.emit(EditorEvent::InputHandled {
4095 utf16_range_to_replace: None,
4096 text: partial_suggestion.clone().into(),
4097 });
4098 self.insert_with_autoindent_mode(&partial_suggestion, None, cx);
4099 self.refresh_copilot_suggestions(true, cx);
4100 cx.notify();
4101 }
4102 }
4103 }
4104
4105 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4106 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4107 if let Some(copilot) = Copilot::global(cx) {
4108 copilot
4109 .update(cx, |copilot, cx| {
4110 copilot.discard_completions(&self.copilot_state.completions, cx)
4111 })
4112 .detach_and_log_err(cx);
4113
4114 self.report_copilot_event(None, false, cx)
4115 }
4116
4117 self.display_map.update(cx, |map, cx| {
4118 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
4119 });
4120 cx.notify();
4121 true
4122 } else {
4123 false
4124 }
4125 }
4126
4127 fn is_copilot_enabled_at(
4128 &self,
4129 location: Anchor,
4130 snapshot: &MultiBufferSnapshot,
4131 cx: &mut ViewContext<Self>,
4132 ) -> bool {
4133 let file = snapshot.file_at(location);
4134 let language = snapshot.language_at(location);
4135 let settings = all_language_settings(file, cx);
4136 self.show_copilot_suggestions
4137 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
4138 }
4139
4140 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
4141 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
4142 let buffer = self.buffer.read(cx).read(cx);
4143 suggestion.position.is_valid(&buffer)
4144 } else {
4145 false
4146 }
4147 }
4148
4149 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4150 let suggestion = self.copilot_state.suggestion.take()?;
4151 self.display_map.update(cx, |map, cx| {
4152 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
4153 });
4154 let buffer = self.buffer.read(cx).read(cx);
4155
4156 if suggestion.position.is_valid(&buffer) {
4157 Some(suggestion)
4158 } else {
4159 None
4160 }
4161 }
4162
4163 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
4164 let snapshot = self.buffer.read(cx).snapshot(cx);
4165 let selection = self.selections.newest_anchor();
4166 let cursor = selection.head();
4167
4168 if self.context_menu.read().is_some()
4169 || !self.completion_tasks.is_empty()
4170 || selection.start != selection.end
4171 {
4172 self.discard_copilot_suggestion(cx);
4173 } else if let Some(text) = self
4174 .copilot_state
4175 .text_for_active_completion(cursor, &snapshot)
4176 {
4177 let text = Rope::from(text);
4178 let mut to_remove = Vec::new();
4179 if let Some(suggestion) = self.copilot_state.suggestion.take() {
4180 to_remove.push(suggestion.id);
4181 }
4182
4183 let suggestion_inlay =
4184 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4185 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
4186 self.display_map.update(cx, move |map, cx| {
4187 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
4188 });
4189 cx.notify();
4190 } else {
4191 self.discard_copilot_suggestion(cx);
4192 }
4193 }
4194
4195 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
4196 if let Some(old_suggestion) = self.copilot_state.suggestion.take() {
4197 self.splice_inlays(vec![old_suggestion.id], Vec::new(), cx);
4198 }
4199 self.copilot_state = CopilotState::default();
4200 self.discard_copilot_suggestion(cx);
4201 }
4202
4203 pub fn render_code_actions_indicator(
4204 &self,
4205 _style: &EditorStyle,
4206 is_active: bool,
4207 cx: &mut ViewContext<Self>,
4208 ) -> Option<IconButton> {
4209 if self.available_code_actions.is_some() {
4210 Some(
4211 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4212 .icon_size(IconSize::XSmall)
4213 .size(ui::ButtonSize::None)
4214 .icon_color(Color::Muted)
4215 .selected(is_active)
4216 .on_click(cx.listener(|editor, _e, cx| {
4217 editor.toggle_code_actions(
4218 &ToggleCodeActions {
4219 deployed_from_indicator: true,
4220 },
4221 cx,
4222 );
4223 })),
4224 )
4225 } else {
4226 None
4227 }
4228 }
4229
4230 pub fn render_fold_indicators(
4231 &mut self,
4232 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4233 _style: &EditorStyle,
4234 gutter_hovered: bool,
4235 _line_height: Pixels,
4236 _gutter_margin: Pixels,
4237 cx: &mut ViewContext<Self>,
4238 ) -> Vec<Option<AnyElement>> {
4239 fold_data
4240 .iter()
4241 .enumerate()
4242 .map(|(ix, fold_data)| {
4243 fold_data
4244 .map(|(fold_status, buffer_row, active)| {
4245 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4246 IconButton::new(ix, ui::IconName::ChevronDown)
4247 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4248 FoldStatus::Folded => {
4249 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4250 }
4251 FoldStatus::Foldable => {
4252 this.fold_at(&FoldAt { buffer_row }, cx);
4253 }
4254 }))
4255 .icon_color(ui::Color::Muted)
4256 .icon_size(ui::IconSize::Small)
4257 .selected(fold_status == FoldStatus::Folded)
4258 .selected_icon(ui::IconName::ChevronRight)
4259 .size(ui::ButtonSize::None)
4260 .into_any_element()
4261 })
4262 })
4263 .flatten()
4264 })
4265 .collect()
4266 }
4267
4268 pub fn context_menu_visible(&self) -> bool {
4269 self.context_menu
4270 .read()
4271 .as_ref()
4272 .map_or(false, |menu| menu.visible())
4273 }
4274
4275 pub fn render_context_menu(
4276 &self,
4277 cursor_position: DisplayPoint,
4278 style: &EditorStyle,
4279 max_height: Pixels,
4280 cx: &mut ViewContext<Editor>,
4281 ) -> Option<(DisplayPoint, AnyElement)> {
4282 self.context_menu.read().as_ref().map(|menu| {
4283 menu.render(
4284 cursor_position,
4285 style,
4286 max_height,
4287 self.workspace.as_ref().map(|(w, _)| w.clone()),
4288 cx,
4289 )
4290 })
4291 }
4292
4293 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4294 cx.notify();
4295 self.completion_tasks.clear();
4296 let context_menu = self.context_menu.write().take();
4297 if context_menu.is_some() {
4298 self.update_visible_copilot_suggestion(cx);
4299 }
4300 context_menu
4301 }
4302
4303 pub fn insert_snippet(
4304 &mut self,
4305 insertion_ranges: &[Range<usize>],
4306 snippet: Snippet,
4307 cx: &mut ViewContext<Self>,
4308 ) -> Result<()> {
4309 let tabstops = self.buffer.update(cx, |buffer, cx| {
4310 let snippet_text: Arc<str> = snippet.text.clone().into();
4311 buffer.edit(
4312 insertion_ranges
4313 .iter()
4314 .cloned()
4315 .map(|range| (range, snippet_text.clone())),
4316 Some(AutoindentMode::EachLine),
4317 cx,
4318 );
4319
4320 let snapshot = &*buffer.read(cx);
4321 let snippet = &snippet;
4322 snippet
4323 .tabstops
4324 .iter()
4325 .map(|tabstop| {
4326 let mut tabstop_ranges = tabstop
4327 .iter()
4328 .flat_map(|tabstop_range| {
4329 let mut delta = 0_isize;
4330 insertion_ranges.iter().map(move |insertion_range| {
4331 let insertion_start = insertion_range.start as isize + delta;
4332 delta +=
4333 snippet.text.len() as isize - insertion_range.len() as isize;
4334
4335 let start = snapshot.anchor_before(
4336 (insertion_start + tabstop_range.start) as usize,
4337 );
4338 let end = snapshot
4339 .anchor_after((insertion_start + tabstop_range.end) as usize);
4340 start..end
4341 })
4342 })
4343 .collect::<Vec<_>>();
4344 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4345 tabstop_ranges
4346 })
4347 .collect::<Vec<_>>()
4348 });
4349
4350 if let Some(tabstop) = tabstops.first() {
4351 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4352 s.select_ranges(tabstop.iter().cloned());
4353 });
4354 self.snippet_stack.push(SnippetState {
4355 active_index: 0,
4356 ranges: tabstops,
4357 });
4358
4359 // Check whether the just-entered snippet ends with an auto-closable bracket.
4360 if self.autoclose_regions.is_empty() {
4361 let snapshot = self.buffer.read(cx).snapshot(cx);
4362 for selection in &mut self.selections.all::<Point>(cx) {
4363 let selection_head = selection.head();
4364 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4365 continue;
4366 };
4367
4368 let mut bracket_pair = None;
4369 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4370 let prev_chars = snapshot
4371 .reversed_chars_at(selection_head)
4372 .collect::<String>();
4373 for (pair, enabled) in scope.brackets() {
4374 if enabled
4375 && pair.close
4376 && prev_chars.starts_with(pair.start.as_str())
4377 && next_chars.starts_with(pair.end.as_str())
4378 {
4379 bracket_pair = Some(pair.clone());
4380 break;
4381 }
4382 }
4383 if let Some(pair) = bracket_pair {
4384 let start = snapshot.anchor_after(selection_head);
4385 let end = snapshot.anchor_after(selection_head);
4386 self.autoclose_regions.push(AutocloseRegion {
4387 selection_id: selection.id,
4388 range: start..end,
4389 pair,
4390 });
4391 }
4392 }
4393 }
4394 }
4395 Ok(())
4396 }
4397
4398 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4399 self.move_to_snippet_tabstop(Bias::Right, cx)
4400 }
4401
4402 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4403 self.move_to_snippet_tabstop(Bias::Left, cx)
4404 }
4405
4406 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4407 if let Some(mut snippet) = self.snippet_stack.pop() {
4408 match bias {
4409 Bias::Left => {
4410 if snippet.active_index > 0 {
4411 snippet.active_index -= 1;
4412 } else {
4413 self.snippet_stack.push(snippet);
4414 return false;
4415 }
4416 }
4417 Bias::Right => {
4418 if snippet.active_index + 1 < snippet.ranges.len() {
4419 snippet.active_index += 1;
4420 } else {
4421 self.snippet_stack.push(snippet);
4422 return false;
4423 }
4424 }
4425 }
4426 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4427 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4428 s.select_anchor_ranges(current_ranges.iter().cloned())
4429 });
4430 // If snippet state is not at the last tabstop, push it back on the stack
4431 if snippet.active_index + 1 < snippet.ranges.len() {
4432 self.snippet_stack.push(snippet);
4433 }
4434 return true;
4435 }
4436 }
4437
4438 false
4439 }
4440
4441 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4442 self.transact(cx, |this, cx| {
4443 this.select_all(&SelectAll, cx);
4444 this.insert("", cx);
4445 });
4446 }
4447
4448 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4449 self.transact(cx, |this, cx| {
4450 this.select_autoclose_pair(cx);
4451 let mut selections = this.selections.all::<Point>(cx);
4452 if !this.selections.line_mode {
4453 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4454 for selection in &mut selections {
4455 if selection.is_empty() {
4456 let old_head = selection.head();
4457 let mut new_head =
4458 movement::left(&display_map, old_head.to_display_point(&display_map))
4459 .to_point(&display_map);
4460 if let Some((buffer, line_buffer_range)) = display_map
4461 .buffer_snapshot
4462 .buffer_line_for_row(old_head.row)
4463 {
4464 let indent_size =
4465 buffer.indent_size_for_line(line_buffer_range.start.row);
4466 let indent_len = match indent_size.kind {
4467 IndentKind::Space => {
4468 buffer.settings_at(line_buffer_range.start, cx).tab_size
4469 }
4470 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4471 };
4472 if old_head.column <= indent_size.len && old_head.column > 0 {
4473 let indent_len = indent_len.get();
4474 new_head = cmp::min(
4475 new_head,
4476 Point::new(
4477 old_head.row,
4478 ((old_head.column - 1) / indent_len) * indent_len,
4479 ),
4480 );
4481 }
4482 }
4483
4484 selection.set_head(new_head, SelectionGoal::None);
4485 }
4486 }
4487 }
4488
4489 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4490 this.insert("", cx);
4491 this.refresh_copilot_suggestions(true, cx);
4492 });
4493 }
4494
4495 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4496 self.transact(cx, |this, cx| {
4497 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4498 let line_mode = s.line_mode;
4499 s.move_with(|map, selection| {
4500 if selection.is_empty() && !line_mode {
4501 let cursor = movement::right(map, selection.head());
4502 selection.end = cursor;
4503 selection.reversed = true;
4504 selection.goal = SelectionGoal::None;
4505 }
4506 })
4507 });
4508 this.insert("", cx);
4509 this.refresh_copilot_suggestions(true, cx);
4510 });
4511 }
4512
4513 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4514 if self.move_to_prev_snippet_tabstop(cx) {
4515 return;
4516 }
4517
4518 self.outdent(&Outdent, cx);
4519 }
4520
4521 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4522 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4523 return;
4524 }
4525
4526 let mut selections = self.selections.all_adjusted(cx);
4527 let buffer = self.buffer.read(cx);
4528 let snapshot = buffer.snapshot(cx);
4529 let rows_iter = selections.iter().map(|s| s.head().row);
4530 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4531
4532 let mut edits = Vec::new();
4533 let mut prev_edited_row = 0;
4534 let mut row_delta = 0;
4535 for selection in &mut selections {
4536 if selection.start.row != prev_edited_row {
4537 row_delta = 0;
4538 }
4539 prev_edited_row = selection.end.row;
4540
4541 // If the selection is non-empty, then increase the indentation of the selected lines.
4542 if !selection.is_empty() {
4543 row_delta =
4544 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4545 continue;
4546 }
4547
4548 // If the selection is empty and the cursor is in the leading whitespace before the
4549 // suggested indentation, then auto-indent the line.
4550 let cursor = selection.head();
4551 let current_indent = snapshot.indent_size_for_line(cursor.row);
4552 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4553 if cursor.column < suggested_indent.len
4554 && cursor.column <= current_indent.len
4555 && current_indent.len <= suggested_indent.len
4556 {
4557 selection.start = Point::new(cursor.row, suggested_indent.len);
4558 selection.end = selection.start;
4559 if row_delta == 0 {
4560 edits.extend(Buffer::edit_for_indent_size_adjustment(
4561 cursor.row,
4562 current_indent,
4563 suggested_indent,
4564 ));
4565 row_delta = suggested_indent.len - current_indent.len;
4566 }
4567 continue;
4568 }
4569 }
4570
4571 // Accept copilot suggestion if there is only one selection and the cursor is not
4572 // in the leading whitespace.
4573 if self.selections.count() == 1
4574 && cursor.column >= current_indent.len
4575 && self.has_active_copilot_suggestion(cx)
4576 {
4577 self.accept_copilot_suggestion(cx);
4578 return;
4579 }
4580
4581 // Otherwise, insert a hard or soft tab.
4582 let settings = buffer.settings_at(cursor, cx);
4583 let tab_size = if settings.hard_tabs {
4584 IndentSize::tab()
4585 } else {
4586 let tab_size = settings.tab_size.get();
4587 let char_column = snapshot
4588 .text_for_range(Point::new(cursor.row, 0)..cursor)
4589 .flat_map(str::chars)
4590 .count()
4591 + row_delta as usize;
4592 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4593 IndentSize::spaces(chars_to_next_tab_stop)
4594 };
4595 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4596 selection.end = selection.start;
4597 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4598 row_delta += tab_size.len;
4599 }
4600
4601 self.transact(cx, |this, cx| {
4602 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4603 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4604 this.refresh_copilot_suggestions(true, cx);
4605 });
4606 }
4607
4608 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4609 if self.read_only(cx) {
4610 return;
4611 }
4612 let mut selections = self.selections.all::<Point>(cx);
4613 let mut prev_edited_row = 0;
4614 let mut row_delta = 0;
4615 let mut edits = Vec::new();
4616 let buffer = self.buffer.read(cx);
4617 let snapshot = buffer.snapshot(cx);
4618 for selection in &mut selections {
4619 if selection.start.row != prev_edited_row {
4620 row_delta = 0;
4621 }
4622 prev_edited_row = selection.end.row;
4623
4624 row_delta =
4625 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4626 }
4627
4628 self.transact(cx, |this, cx| {
4629 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4630 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4631 });
4632 }
4633
4634 fn indent_selection(
4635 buffer: &MultiBuffer,
4636 snapshot: &MultiBufferSnapshot,
4637 selection: &mut Selection<Point>,
4638 edits: &mut Vec<(Range<Point>, String)>,
4639 delta_for_start_row: u32,
4640 cx: &AppContext,
4641 ) -> u32 {
4642 let settings = buffer.settings_at(selection.start, cx);
4643 let tab_size = settings.tab_size.get();
4644 let indent_kind = if settings.hard_tabs {
4645 IndentKind::Tab
4646 } else {
4647 IndentKind::Space
4648 };
4649 let mut start_row = selection.start.row;
4650 let mut end_row = selection.end.row + 1;
4651
4652 // If a selection ends at the beginning of a line, don't indent
4653 // that last line.
4654 if selection.end.column == 0 && selection.end.row > selection.start.row {
4655 end_row -= 1;
4656 }
4657
4658 // Avoid re-indenting a row that has already been indented by a
4659 // previous selection, but still update this selection's column
4660 // to reflect that indentation.
4661 if delta_for_start_row > 0 {
4662 start_row += 1;
4663 selection.start.column += delta_for_start_row;
4664 if selection.end.row == selection.start.row {
4665 selection.end.column += delta_for_start_row;
4666 }
4667 }
4668
4669 let mut delta_for_end_row = 0;
4670 for row in start_row..end_row {
4671 let current_indent = snapshot.indent_size_for_line(row);
4672 let indent_delta = match (current_indent.kind, indent_kind) {
4673 (IndentKind::Space, IndentKind::Space) => {
4674 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4675 IndentSize::spaces(columns_to_next_tab_stop)
4676 }
4677 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4678 (_, IndentKind::Tab) => IndentSize::tab(),
4679 };
4680
4681 let row_start = Point::new(row, 0);
4682 edits.push((
4683 row_start..row_start,
4684 indent_delta.chars().collect::<String>(),
4685 ));
4686
4687 // Update this selection's endpoints to reflect the indentation.
4688 if row == selection.start.row {
4689 selection.start.column += indent_delta.len;
4690 }
4691 if row == selection.end.row {
4692 selection.end.column += indent_delta.len;
4693 delta_for_end_row = indent_delta.len;
4694 }
4695 }
4696
4697 if selection.start.row == selection.end.row {
4698 delta_for_start_row + delta_for_end_row
4699 } else {
4700 delta_for_end_row
4701 }
4702 }
4703
4704 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4705 if self.read_only(cx) {
4706 return;
4707 }
4708 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4709 let selections = self.selections.all::<Point>(cx);
4710 let mut deletion_ranges = Vec::new();
4711 let mut last_outdent = None;
4712 {
4713 let buffer = self.buffer.read(cx);
4714 let snapshot = buffer.snapshot(cx);
4715 for selection in &selections {
4716 let settings = buffer.settings_at(selection.start, cx);
4717 let tab_size = settings.tab_size.get();
4718 let mut rows = selection.spanned_rows(false, &display_map);
4719
4720 // Avoid re-outdenting a row that has already been outdented by a
4721 // previous selection.
4722 if let Some(last_row) = last_outdent {
4723 if last_row == rows.start {
4724 rows.start += 1;
4725 }
4726 }
4727
4728 for row in rows {
4729 let indent_size = snapshot.indent_size_for_line(row);
4730 if indent_size.len > 0 {
4731 let deletion_len = match indent_size.kind {
4732 IndentKind::Space => {
4733 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4734 if columns_to_prev_tab_stop == 0 {
4735 tab_size
4736 } else {
4737 columns_to_prev_tab_stop
4738 }
4739 }
4740 IndentKind::Tab => 1,
4741 };
4742 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4743 last_outdent = Some(row);
4744 }
4745 }
4746 }
4747 }
4748
4749 self.transact(cx, |this, cx| {
4750 this.buffer.update(cx, |buffer, cx| {
4751 let empty_str: Arc<str> = "".into();
4752 buffer.edit(
4753 deletion_ranges
4754 .into_iter()
4755 .map(|range| (range, empty_str.clone())),
4756 None,
4757 cx,
4758 );
4759 });
4760 let selections = this.selections.all::<usize>(cx);
4761 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4762 });
4763 }
4764
4765 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4766 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4767 let selections = self.selections.all::<Point>(cx);
4768
4769 let mut new_cursors = Vec::new();
4770 let mut edit_ranges = Vec::new();
4771 let mut selections = selections.iter().peekable();
4772 while let Some(selection) = selections.next() {
4773 let mut rows = selection.spanned_rows(false, &display_map);
4774 let goal_display_column = selection.head().to_display_point(&display_map).column();
4775
4776 // Accumulate contiguous regions of rows that we want to delete.
4777 while let Some(next_selection) = selections.peek() {
4778 let next_rows = next_selection.spanned_rows(false, &display_map);
4779 if next_rows.start <= rows.end {
4780 rows.end = next_rows.end;
4781 selections.next().unwrap();
4782 } else {
4783 break;
4784 }
4785 }
4786
4787 let buffer = &display_map.buffer_snapshot;
4788 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4789 let edit_end;
4790 let cursor_buffer_row;
4791 if buffer.max_point().row >= rows.end {
4792 // If there's a line after the range, delete the \n from the end of the row range
4793 // and position the cursor on the next line.
4794 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4795 cursor_buffer_row = rows.end;
4796 } else {
4797 // If there isn't a line after the range, delete the \n from the line before the
4798 // start of the row range and position the cursor there.
4799 edit_start = edit_start.saturating_sub(1);
4800 edit_end = buffer.len();
4801 cursor_buffer_row = rows.start.saturating_sub(1);
4802 }
4803
4804 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4805 *cursor.column_mut() =
4806 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4807
4808 new_cursors.push((
4809 selection.id,
4810 buffer.anchor_after(cursor.to_point(&display_map)),
4811 ));
4812 edit_ranges.push(edit_start..edit_end);
4813 }
4814
4815 self.transact(cx, |this, cx| {
4816 let buffer = this.buffer.update(cx, |buffer, cx| {
4817 let empty_str: Arc<str> = "".into();
4818 buffer.edit(
4819 edit_ranges
4820 .into_iter()
4821 .map(|range| (range, empty_str.clone())),
4822 None,
4823 cx,
4824 );
4825 buffer.snapshot(cx)
4826 });
4827 let new_selections = new_cursors
4828 .into_iter()
4829 .map(|(id, cursor)| {
4830 let cursor = cursor.to_point(&buffer);
4831 Selection {
4832 id,
4833 start: cursor,
4834 end: cursor,
4835 reversed: false,
4836 goal: SelectionGoal::None,
4837 }
4838 })
4839 .collect();
4840
4841 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4842 s.select(new_selections);
4843 });
4844 });
4845 }
4846
4847 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4848 if self.read_only(cx) {
4849 return;
4850 }
4851 let mut row_ranges = Vec::<Range<u32>>::new();
4852 for selection in self.selections.all::<Point>(cx) {
4853 let start = selection.start.row;
4854 let end = if selection.start.row == selection.end.row {
4855 selection.start.row + 1
4856 } else {
4857 selection.end.row
4858 };
4859
4860 if let Some(last_row_range) = row_ranges.last_mut() {
4861 if start <= last_row_range.end {
4862 last_row_range.end = end;
4863 continue;
4864 }
4865 }
4866 row_ranges.push(start..end);
4867 }
4868
4869 let snapshot = self.buffer.read(cx).snapshot(cx);
4870 let mut cursor_positions = Vec::new();
4871 for row_range in &row_ranges {
4872 let anchor = snapshot.anchor_before(Point::new(
4873 row_range.end - 1,
4874 snapshot.line_len(row_range.end - 1),
4875 ));
4876 cursor_positions.push(anchor..anchor);
4877 }
4878
4879 self.transact(cx, |this, cx| {
4880 for row_range in row_ranges.into_iter().rev() {
4881 for row in row_range.rev() {
4882 let end_of_line = Point::new(row, snapshot.line_len(row));
4883 let indent = snapshot.indent_size_for_line(row + 1);
4884 let start_of_next_line = Point::new(row + 1, indent.len);
4885
4886 let replace = if snapshot.line_len(row + 1) > indent.len {
4887 " "
4888 } else {
4889 ""
4890 };
4891
4892 this.buffer.update(cx, |buffer, cx| {
4893 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4894 });
4895 }
4896 }
4897
4898 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4899 s.select_anchor_ranges(cursor_positions)
4900 });
4901 });
4902 }
4903
4904 pub fn sort_lines_case_sensitive(
4905 &mut self,
4906 _: &SortLinesCaseSensitive,
4907 cx: &mut ViewContext<Self>,
4908 ) {
4909 self.manipulate_lines(cx, |lines| lines.sort())
4910 }
4911
4912 pub fn sort_lines_case_insensitive(
4913 &mut self,
4914 _: &SortLinesCaseInsensitive,
4915 cx: &mut ViewContext<Self>,
4916 ) {
4917 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4918 }
4919
4920 pub fn unique_lines_case_insensitive(
4921 &mut self,
4922 _: &UniqueLinesCaseInsensitive,
4923 cx: &mut ViewContext<Self>,
4924 ) {
4925 self.manipulate_lines(cx, |lines| {
4926 let mut seen = HashSet::default();
4927 lines.retain(|line| seen.insert(line.to_lowercase()));
4928 })
4929 }
4930
4931 pub fn unique_lines_case_sensitive(
4932 &mut self,
4933 _: &UniqueLinesCaseSensitive,
4934 cx: &mut ViewContext<Self>,
4935 ) {
4936 self.manipulate_lines(cx, |lines| {
4937 let mut seen = HashSet::default();
4938 lines.retain(|line| seen.insert(*line));
4939 })
4940 }
4941
4942 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
4943 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
4944 if !revert_changes.is_empty() {
4945 self.transact(cx, |editor, cx| {
4946 editor.buffer().update(cx, |multi_buffer, cx| {
4947 for (buffer_id, buffer_revert_ranges) in revert_changes {
4948 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
4949 buffer.update(cx, |buffer, cx| {
4950 buffer.edit(buffer_revert_ranges, None, cx);
4951 });
4952 }
4953 }
4954 });
4955 editor.change_selections(None, cx, |selections| selections.refresh());
4956 });
4957 }
4958 }
4959
4960 fn gather_revert_changes(
4961 &mut self,
4962 selections: &[Selection<Anchor>],
4963 cx: &mut ViewContext<'_, Editor>,
4964 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>> {
4965 let mut revert_changes = HashMap::default();
4966 self.buffer.update(cx, |multi_buffer, cx| {
4967 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4968 let selected_multi_buffer_rows = selections.iter().map(|selection| {
4969 let head = selection.head();
4970 let tail = selection.tail();
4971 let start = tail.to_point(&multi_buffer_snapshot).row;
4972 let end = head.to_point(&multi_buffer_snapshot).row;
4973 if start > end {
4974 end..start
4975 } else {
4976 start..end
4977 }
4978 });
4979
4980 let mut processed_buffer_rows =
4981 HashMap::<BufferId, HashSet<Range<text::Anchor>>>::default();
4982 for selected_multi_buffer_rows in selected_multi_buffer_rows {
4983 let query_rows =
4984 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
4985 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
4986 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
4987 // when the caret is just above or just below the deleted hunk.
4988 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
4989 let related_to_selection = if allow_adjacent {
4990 hunk.associated_range.overlaps(&query_rows)
4991 || hunk.associated_range.start == query_rows.end
4992 || hunk.associated_range.end == query_rows.start
4993 } else {
4994 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
4995 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
4996 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
4997 || selected_multi_buffer_rows.end == hunk.associated_range.start
4998 };
4999 if related_to_selection {
5000 if !processed_buffer_rows
5001 .entry(hunk.buffer_id)
5002 .or_default()
5003 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
5004 {
5005 continue;
5006 }
5007 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5008 }
5009 }
5010 }
5011 });
5012 revert_changes
5013 }
5014
5015 fn prepare_revert_change(
5016 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>>,
5017 multi_buffer: &MultiBuffer,
5018 hunk: &DiffHunk<u32>,
5019 cx: &mut AppContext,
5020 ) -> Option<()> {
5021 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5022 let buffer = buffer.read(cx);
5023 let original_text = buffer.diff_base()?.get(hunk.diff_base_byte_range.clone())?;
5024 let buffer_snapshot = buffer.snapshot();
5025 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5026 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5027 probe
5028 .0
5029 .start
5030 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5031 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5032 .then(probe.1.as_ref().cmp(original_text))
5033 }) {
5034 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), Arc::from(original_text)));
5035 Some(())
5036 } else {
5037 None
5038 }
5039 }
5040
5041 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5042 self.manipulate_lines(cx, |lines| lines.reverse())
5043 }
5044
5045 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5046 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5047 }
5048
5049 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5050 where
5051 Fn: FnMut(&mut Vec<&str>),
5052 {
5053 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5054 let buffer = self.buffer.read(cx).snapshot(cx);
5055
5056 let mut edits = Vec::new();
5057
5058 let selections = self.selections.all::<Point>(cx);
5059 let mut selections = selections.iter().peekable();
5060 let mut contiguous_row_selections = Vec::new();
5061 let mut new_selections = Vec::new();
5062 let mut added_lines = 0;
5063 let mut removed_lines = 0;
5064
5065 while let Some(selection) = selections.next() {
5066 let (start_row, end_row) = consume_contiguous_rows(
5067 &mut contiguous_row_selections,
5068 selection,
5069 &display_map,
5070 &mut selections,
5071 );
5072
5073 let start_point = Point::new(start_row, 0);
5074 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
5075 let text = buffer
5076 .text_for_range(start_point..end_point)
5077 .collect::<String>();
5078
5079 let mut lines = text.split('\n').collect_vec();
5080
5081 let lines_before = lines.len();
5082 callback(&mut lines);
5083 let lines_after = lines.len();
5084
5085 edits.push((start_point..end_point, lines.join("\n")));
5086
5087 // Selections must change based on added and removed line count
5088 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
5089 let end_row = start_row + lines_after.saturating_sub(1) as u32;
5090 new_selections.push(Selection {
5091 id: selection.id,
5092 start: start_row,
5093 end: end_row,
5094 goal: SelectionGoal::None,
5095 reversed: selection.reversed,
5096 });
5097
5098 if lines_after > lines_before {
5099 added_lines += lines_after - lines_before;
5100 } else if lines_before > lines_after {
5101 removed_lines += lines_before - lines_after;
5102 }
5103 }
5104
5105 self.transact(cx, |this, cx| {
5106 let buffer = this.buffer.update(cx, |buffer, cx| {
5107 buffer.edit(edits, None, cx);
5108 buffer.snapshot(cx)
5109 });
5110
5111 // Recalculate offsets on newly edited buffer
5112 let new_selections = new_selections
5113 .iter()
5114 .map(|s| {
5115 let start_point = Point::new(s.start, 0);
5116 let end_point = Point::new(s.end, buffer.line_len(s.end));
5117 Selection {
5118 id: s.id,
5119 start: buffer.point_to_offset(start_point),
5120 end: buffer.point_to_offset(end_point),
5121 goal: s.goal,
5122 reversed: s.reversed,
5123 }
5124 })
5125 .collect();
5126
5127 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5128 s.select(new_selections);
5129 });
5130
5131 this.request_autoscroll(Autoscroll::fit(), cx);
5132 });
5133 }
5134
5135 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5136 self.manipulate_text(cx, |text| text.to_uppercase())
5137 }
5138
5139 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5140 self.manipulate_text(cx, |text| text.to_lowercase())
5141 }
5142
5143 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5144 self.manipulate_text(cx, |text| {
5145 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5146 // https://github.com/rutrum/convert-case/issues/16
5147 text.split('\n')
5148 .map(|line| line.to_case(Case::Title))
5149 .join("\n")
5150 })
5151 }
5152
5153 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5154 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5155 }
5156
5157 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5158 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5159 }
5160
5161 pub fn convert_to_upper_camel_case(
5162 &mut self,
5163 _: &ConvertToUpperCamelCase,
5164 cx: &mut ViewContext<Self>,
5165 ) {
5166 self.manipulate_text(cx, |text| {
5167 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5168 // https://github.com/rutrum/convert-case/issues/16
5169 text.split('\n')
5170 .map(|line| line.to_case(Case::UpperCamel))
5171 .join("\n")
5172 })
5173 }
5174
5175 pub fn convert_to_lower_camel_case(
5176 &mut self,
5177 _: &ConvertToLowerCamelCase,
5178 cx: &mut ViewContext<Self>,
5179 ) {
5180 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5181 }
5182
5183 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5184 where
5185 Fn: FnMut(&str) -> String,
5186 {
5187 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5188 let buffer = self.buffer.read(cx).snapshot(cx);
5189
5190 let mut new_selections = Vec::new();
5191 let mut edits = Vec::new();
5192 let mut selection_adjustment = 0i32;
5193
5194 for selection in self.selections.all::<usize>(cx) {
5195 let selection_is_empty = selection.is_empty();
5196
5197 let (start, end) = if selection_is_empty {
5198 let word_range = movement::surrounding_word(
5199 &display_map,
5200 selection.start.to_display_point(&display_map),
5201 );
5202 let start = word_range.start.to_offset(&display_map, Bias::Left);
5203 let end = word_range.end.to_offset(&display_map, Bias::Left);
5204 (start, end)
5205 } else {
5206 (selection.start, selection.end)
5207 };
5208
5209 let text = buffer.text_for_range(start..end).collect::<String>();
5210 let old_length = text.len() as i32;
5211 let text = callback(&text);
5212
5213 new_selections.push(Selection {
5214 start: (start as i32 - selection_adjustment) as usize,
5215 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5216 goal: SelectionGoal::None,
5217 ..selection
5218 });
5219
5220 selection_adjustment += old_length - text.len() as i32;
5221
5222 edits.push((start..end, text));
5223 }
5224
5225 self.transact(cx, |this, cx| {
5226 this.buffer.update(cx, |buffer, cx| {
5227 buffer.edit(edits, None, cx);
5228 });
5229
5230 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5231 s.select(new_selections);
5232 });
5233
5234 this.request_autoscroll(Autoscroll::fit(), cx);
5235 });
5236 }
5237
5238 pub fn duplicate_line(&mut self, action: &DuplicateLine, cx: &mut ViewContext<Self>) {
5239 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5240 let buffer = &display_map.buffer_snapshot;
5241 let selections = self.selections.all::<Point>(cx);
5242
5243 let mut edits = Vec::new();
5244 let mut selections_iter = selections.iter().peekable();
5245 while let Some(selection) = selections_iter.next() {
5246 // Avoid duplicating the same lines twice.
5247 let mut rows = selection.spanned_rows(false, &display_map);
5248
5249 while let Some(next_selection) = selections_iter.peek() {
5250 let next_rows = next_selection.spanned_rows(false, &display_map);
5251 if next_rows.start < rows.end {
5252 rows.end = next_rows.end;
5253 selections_iter.next().unwrap();
5254 } else {
5255 break;
5256 }
5257 }
5258
5259 // Copy the text from the selected row region and splice it either at the start
5260 // or end of the region.
5261 let start = Point::new(rows.start, 0);
5262 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5263 let text = buffer
5264 .text_for_range(start..end)
5265 .chain(Some("\n"))
5266 .collect::<String>();
5267 let insert_location = if action.move_upwards {
5268 Point::new(rows.end, 0)
5269 } else {
5270 start
5271 };
5272 edits.push((insert_location..insert_location, text));
5273 }
5274
5275 self.transact(cx, |this, cx| {
5276 this.buffer.update(cx, |buffer, cx| {
5277 buffer.edit(edits, None, cx);
5278 });
5279
5280 this.request_autoscroll(Autoscroll::fit(), cx);
5281 });
5282 }
5283
5284 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5285 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5286 let buffer = self.buffer.read(cx).snapshot(cx);
5287
5288 let mut edits = Vec::new();
5289 let mut unfold_ranges = Vec::new();
5290 let mut refold_ranges = Vec::new();
5291
5292 let selections = self.selections.all::<Point>(cx);
5293 let mut selections = selections.iter().peekable();
5294 let mut contiguous_row_selections = Vec::new();
5295 let mut new_selections = Vec::new();
5296
5297 while let Some(selection) = selections.next() {
5298 // Find all the selections that span a contiguous row range
5299 let (start_row, end_row) = consume_contiguous_rows(
5300 &mut contiguous_row_selections,
5301 selection,
5302 &display_map,
5303 &mut selections,
5304 );
5305
5306 // Move the text spanned by the row range to be before the line preceding the row range
5307 if start_row > 0 {
5308 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5309 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5310 let insertion_point = display_map
5311 .prev_line_boundary(Point::new(start_row - 1, 0))
5312 .0;
5313
5314 // Don't move lines across excerpts
5315 if buffer
5316 .excerpt_boundaries_in_range((
5317 Bound::Excluded(insertion_point),
5318 Bound::Included(range_to_move.end),
5319 ))
5320 .next()
5321 .is_none()
5322 {
5323 let text = buffer
5324 .text_for_range(range_to_move.clone())
5325 .flat_map(|s| s.chars())
5326 .skip(1)
5327 .chain(['\n'])
5328 .collect::<String>();
5329
5330 edits.push((
5331 buffer.anchor_after(range_to_move.start)
5332 ..buffer.anchor_before(range_to_move.end),
5333 String::new(),
5334 ));
5335 let insertion_anchor = buffer.anchor_after(insertion_point);
5336 edits.push((insertion_anchor..insertion_anchor, text));
5337
5338 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5339
5340 // Move selections up
5341 new_selections.extend(contiguous_row_selections.drain(..).map(
5342 |mut selection| {
5343 selection.start.row -= row_delta;
5344 selection.end.row -= row_delta;
5345 selection
5346 },
5347 ));
5348
5349 // Move folds up
5350 unfold_ranges.push(range_to_move.clone());
5351 for fold in display_map.folds_in_range(
5352 buffer.anchor_before(range_to_move.start)
5353 ..buffer.anchor_after(range_to_move.end),
5354 ) {
5355 let mut start = fold.range.start.to_point(&buffer);
5356 let mut end = fold.range.end.to_point(&buffer);
5357 start.row -= row_delta;
5358 end.row -= row_delta;
5359 refold_ranges.push(start..end);
5360 }
5361 }
5362 }
5363
5364 // If we didn't move line(s), preserve the existing selections
5365 new_selections.append(&mut contiguous_row_selections);
5366 }
5367
5368 self.transact(cx, |this, cx| {
5369 this.unfold_ranges(unfold_ranges, true, true, cx);
5370 this.buffer.update(cx, |buffer, cx| {
5371 for (range, text) in edits {
5372 buffer.edit([(range, text)], None, cx);
5373 }
5374 });
5375 this.fold_ranges(refold_ranges, true, cx);
5376 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5377 s.select(new_selections);
5378 })
5379 });
5380 }
5381
5382 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5383 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5384 let buffer = self.buffer.read(cx).snapshot(cx);
5385
5386 let mut edits = Vec::new();
5387 let mut unfold_ranges = Vec::new();
5388 let mut refold_ranges = Vec::new();
5389
5390 let selections = self.selections.all::<Point>(cx);
5391 let mut selections = selections.iter().peekable();
5392 let mut contiguous_row_selections = Vec::new();
5393 let mut new_selections = Vec::new();
5394
5395 while let Some(selection) = selections.next() {
5396 // Find all the selections that span a contiguous row range
5397 let (start_row, end_row) = consume_contiguous_rows(
5398 &mut contiguous_row_selections,
5399 selection,
5400 &display_map,
5401 &mut selections,
5402 );
5403
5404 // Move the text spanned by the row range to be after the last line of the row range
5405 if end_row <= buffer.max_point().row {
5406 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5407 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5408
5409 // Don't move lines across excerpt boundaries
5410 if buffer
5411 .excerpt_boundaries_in_range((
5412 Bound::Excluded(range_to_move.start),
5413 Bound::Included(insertion_point),
5414 ))
5415 .next()
5416 .is_none()
5417 {
5418 let mut text = String::from("\n");
5419 text.extend(buffer.text_for_range(range_to_move.clone()));
5420 text.pop(); // Drop trailing newline
5421 edits.push((
5422 buffer.anchor_after(range_to_move.start)
5423 ..buffer.anchor_before(range_to_move.end),
5424 String::new(),
5425 ));
5426 let insertion_anchor = buffer.anchor_after(insertion_point);
5427 edits.push((insertion_anchor..insertion_anchor, text));
5428
5429 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5430
5431 // Move selections down
5432 new_selections.extend(contiguous_row_selections.drain(..).map(
5433 |mut selection| {
5434 selection.start.row += row_delta;
5435 selection.end.row += row_delta;
5436 selection
5437 },
5438 ));
5439
5440 // Move folds down
5441 unfold_ranges.push(range_to_move.clone());
5442 for fold in display_map.folds_in_range(
5443 buffer.anchor_before(range_to_move.start)
5444 ..buffer.anchor_after(range_to_move.end),
5445 ) {
5446 let mut start = fold.range.start.to_point(&buffer);
5447 let mut end = fold.range.end.to_point(&buffer);
5448 start.row += row_delta;
5449 end.row += row_delta;
5450 refold_ranges.push(start..end);
5451 }
5452 }
5453 }
5454
5455 // If we didn't move line(s), preserve the existing selections
5456 new_selections.append(&mut contiguous_row_selections);
5457 }
5458
5459 self.transact(cx, |this, cx| {
5460 this.unfold_ranges(unfold_ranges, true, true, cx);
5461 this.buffer.update(cx, |buffer, cx| {
5462 for (range, text) in edits {
5463 buffer.edit([(range, text)], None, cx);
5464 }
5465 });
5466 this.fold_ranges(refold_ranges, true, cx);
5467 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5468 });
5469 }
5470
5471 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5472 let text_layout_details = &self.text_layout_details(cx);
5473 self.transact(cx, |this, cx| {
5474 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5475 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5476 let line_mode = s.line_mode;
5477 s.move_with(|display_map, selection| {
5478 if !selection.is_empty() || line_mode {
5479 return;
5480 }
5481
5482 let mut head = selection.head();
5483 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5484 if head.column() == display_map.line_len(head.row()) {
5485 transpose_offset = display_map
5486 .buffer_snapshot
5487 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5488 }
5489
5490 if transpose_offset == 0 {
5491 return;
5492 }
5493
5494 *head.column_mut() += 1;
5495 head = display_map.clip_point(head, Bias::Right);
5496 let goal = SelectionGoal::HorizontalPosition(
5497 display_map
5498 .x_for_display_point(head, &text_layout_details)
5499 .into(),
5500 );
5501 selection.collapse_to(head, goal);
5502
5503 let transpose_start = display_map
5504 .buffer_snapshot
5505 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5506 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5507 let transpose_end = display_map
5508 .buffer_snapshot
5509 .clip_offset(transpose_offset + 1, Bias::Right);
5510 if let Some(ch) =
5511 display_map.buffer_snapshot.chars_at(transpose_start).next()
5512 {
5513 edits.push((transpose_start..transpose_offset, String::new()));
5514 edits.push((transpose_end..transpose_end, ch.to_string()));
5515 }
5516 }
5517 });
5518 edits
5519 });
5520 this.buffer
5521 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5522 let selections = this.selections.all::<usize>(cx);
5523 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5524 s.select(selections);
5525 });
5526 });
5527 }
5528
5529 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5530 let mut text = String::new();
5531 let buffer = self.buffer.read(cx).snapshot(cx);
5532 let mut selections = self.selections.all::<Point>(cx);
5533 let mut clipboard_selections = Vec::with_capacity(selections.len());
5534 {
5535 let max_point = buffer.max_point();
5536 let mut is_first = true;
5537 for selection in &mut selections {
5538 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5539 if is_entire_line {
5540 selection.start = Point::new(selection.start.row, 0);
5541 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5542 selection.goal = SelectionGoal::None;
5543 }
5544 if is_first {
5545 is_first = false;
5546 } else {
5547 text += "\n";
5548 }
5549 let mut len = 0;
5550 for chunk in buffer.text_for_range(selection.start..selection.end) {
5551 text.push_str(chunk);
5552 len += chunk.len();
5553 }
5554 clipboard_selections.push(ClipboardSelection {
5555 len,
5556 is_entire_line,
5557 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5558 });
5559 }
5560 }
5561
5562 self.transact(cx, |this, cx| {
5563 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5564 s.select(selections);
5565 });
5566 this.insert("", cx);
5567 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5568 });
5569 }
5570
5571 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5572 let selections = self.selections.all::<Point>(cx);
5573 let buffer = self.buffer.read(cx).read(cx);
5574 let mut text = String::new();
5575
5576 let mut clipboard_selections = Vec::with_capacity(selections.len());
5577 {
5578 let max_point = buffer.max_point();
5579 let mut is_first = true;
5580 for selection in selections.iter() {
5581 let mut start = selection.start;
5582 let mut end = selection.end;
5583 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5584 if is_entire_line {
5585 start = Point::new(start.row, 0);
5586 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5587 }
5588 if is_first {
5589 is_first = false;
5590 } else {
5591 text += "\n";
5592 }
5593 let mut len = 0;
5594 for chunk in buffer.text_for_range(start..end) {
5595 text.push_str(chunk);
5596 len += chunk.len();
5597 }
5598 clipboard_selections.push(ClipboardSelection {
5599 len,
5600 is_entire_line,
5601 first_line_indent: buffer.indent_size_for_line(start.row).len,
5602 });
5603 }
5604 }
5605
5606 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5607 }
5608
5609 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5610 if self.read_only(cx) {
5611 return;
5612 }
5613
5614 self.transact(cx, |this, cx| {
5615 if let Some(item) = cx.read_from_clipboard() {
5616 let clipboard_text = Cow::Borrowed(item.text());
5617 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5618 let old_selections = this.selections.all::<usize>(cx);
5619 let all_selections_were_entire_line =
5620 clipboard_selections.iter().all(|s| s.is_entire_line);
5621 let first_selection_indent_column =
5622 clipboard_selections.first().map(|s| s.first_line_indent);
5623 if clipboard_selections.len() != old_selections.len() {
5624 clipboard_selections.drain(..);
5625 }
5626
5627 this.buffer.update(cx, |buffer, cx| {
5628 let snapshot = buffer.read(cx);
5629 let mut start_offset = 0;
5630 let mut edits = Vec::new();
5631 let mut original_indent_columns = Vec::new();
5632 let line_mode = this.selections.line_mode;
5633 for (ix, selection) in old_selections.iter().enumerate() {
5634 let to_insert;
5635 let entire_line;
5636 let original_indent_column;
5637 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5638 let end_offset = start_offset + clipboard_selection.len;
5639 to_insert = &clipboard_text[start_offset..end_offset];
5640 entire_line = clipboard_selection.is_entire_line;
5641 start_offset = end_offset + 1;
5642 original_indent_column =
5643 Some(clipboard_selection.first_line_indent);
5644 } else {
5645 to_insert = clipboard_text.as_str();
5646 entire_line = all_selections_were_entire_line;
5647 original_indent_column = first_selection_indent_column
5648 }
5649
5650 // If the corresponding selection was empty when this slice of the
5651 // clipboard text was written, then the entire line containing the
5652 // selection was copied. If this selection is also currently empty,
5653 // then paste the line before the current line of the buffer.
5654 let range = if selection.is_empty() && !line_mode && entire_line {
5655 let column = selection.start.to_point(&snapshot).column as usize;
5656 let line_start = selection.start - column;
5657 line_start..line_start
5658 } else {
5659 selection.range()
5660 };
5661
5662 edits.push((range, to_insert));
5663 original_indent_columns.extend(original_indent_column);
5664 }
5665 drop(snapshot);
5666
5667 buffer.edit(
5668 edits,
5669 Some(AutoindentMode::Block {
5670 original_indent_columns,
5671 }),
5672 cx,
5673 );
5674 });
5675
5676 let selections = this.selections.all::<usize>(cx);
5677 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5678 } else {
5679 this.insert(&clipboard_text, cx);
5680 }
5681 }
5682 });
5683 }
5684
5685 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5686 if self.read_only(cx) {
5687 return;
5688 }
5689
5690 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5691 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5692 self.change_selections(None, cx, |s| {
5693 s.select_anchors(selections.to_vec());
5694 });
5695 }
5696 self.request_autoscroll(Autoscroll::fit(), cx);
5697 self.unmark_text(cx);
5698 self.refresh_copilot_suggestions(true, cx);
5699 cx.emit(EditorEvent::Edited);
5700 }
5701 }
5702
5703 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5704 if self.read_only(cx) {
5705 return;
5706 }
5707
5708 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5709 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5710 {
5711 self.change_selections(None, cx, |s| {
5712 s.select_anchors(selections.to_vec());
5713 });
5714 }
5715 self.request_autoscroll(Autoscroll::fit(), cx);
5716 self.unmark_text(cx);
5717 self.refresh_copilot_suggestions(true, cx);
5718 cx.emit(EditorEvent::Edited);
5719 }
5720 }
5721
5722 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5723 self.buffer
5724 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5725 }
5726
5727 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5728 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5729 let line_mode = s.line_mode;
5730 s.move_with(|map, selection| {
5731 let cursor = if selection.is_empty() && !line_mode {
5732 movement::left(map, selection.start)
5733 } else {
5734 selection.start
5735 };
5736 selection.collapse_to(cursor, SelectionGoal::None);
5737 });
5738 })
5739 }
5740
5741 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5742 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5743 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5744 })
5745 }
5746
5747 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5748 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5749 let line_mode = s.line_mode;
5750 s.move_with(|map, selection| {
5751 let cursor = if selection.is_empty() && !line_mode {
5752 movement::right(map, selection.end)
5753 } else {
5754 selection.end
5755 };
5756 selection.collapse_to(cursor, SelectionGoal::None)
5757 });
5758 })
5759 }
5760
5761 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5762 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5763 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5764 })
5765 }
5766
5767 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5768 if self.take_rename(true, cx).is_some() {
5769 return;
5770 }
5771
5772 if matches!(self.mode, EditorMode::SingleLine) {
5773 cx.propagate();
5774 return;
5775 }
5776
5777 let text_layout_details = &self.text_layout_details(cx);
5778
5779 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5780 let line_mode = s.line_mode;
5781 s.move_with(|map, selection| {
5782 if !selection.is_empty() && !line_mode {
5783 selection.goal = SelectionGoal::None;
5784 }
5785 let (cursor, goal) = movement::up(
5786 map,
5787 selection.start,
5788 selection.goal,
5789 false,
5790 &text_layout_details,
5791 );
5792 selection.collapse_to(cursor, goal);
5793 });
5794 })
5795 }
5796
5797 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5798 if self.take_rename(true, cx).is_some() {
5799 return;
5800 }
5801
5802 if matches!(self.mode, EditorMode::SingleLine) {
5803 cx.propagate();
5804 return;
5805 }
5806
5807 let text_layout_details = &self.text_layout_details(cx);
5808
5809 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5810 let line_mode = s.line_mode;
5811 s.move_with(|map, selection| {
5812 if !selection.is_empty() && !line_mode {
5813 selection.goal = SelectionGoal::None;
5814 }
5815 let (cursor, goal) = movement::up_by_rows(
5816 map,
5817 selection.start,
5818 action.lines,
5819 selection.goal,
5820 false,
5821 &text_layout_details,
5822 );
5823 selection.collapse_to(cursor, goal);
5824 });
5825 })
5826 }
5827
5828 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5829 if self.take_rename(true, cx).is_some() {
5830 return;
5831 }
5832
5833 if matches!(self.mode, EditorMode::SingleLine) {
5834 cx.propagate();
5835 return;
5836 }
5837
5838 let text_layout_details = &self.text_layout_details(cx);
5839
5840 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5841 let line_mode = s.line_mode;
5842 s.move_with(|map, selection| {
5843 if !selection.is_empty() && !line_mode {
5844 selection.goal = SelectionGoal::None;
5845 }
5846 let (cursor, goal) = movement::down_by_rows(
5847 map,
5848 selection.start,
5849 action.lines,
5850 selection.goal,
5851 false,
5852 &text_layout_details,
5853 );
5854 selection.collapse_to(cursor, goal);
5855 });
5856 })
5857 }
5858
5859 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5860 let text_layout_details = &self.text_layout_details(cx);
5861 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5862 s.move_heads_with(|map, head, goal| {
5863 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5864 })
5865 })
5866 }
5867
5868 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5869 let text_layout_details = &self.text_layout_details(cx);
5870 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5871 s.move_heads_with(|map, head, goal| {
5872 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5873 })
5874 })
5875 }
5876
5877 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5878 if self.take_rename(true, cx).is_some() {
5879 return;
5880 }
5881
5882 if matches!(self.mode, EditorMode::SingleLine) {
5883 cx.propagate();
5884 return;
5885 }
5886
5887 let row_count = if let Some(row_count) = self.visible_line_count() {
5888 row_count as u32 - 1
5889 } else {
5890 return;
5891 };
5892
5893 let autoscroll = if action.center_cursor {
5894 Autoscroll::center()
5895 } else {
5896 Autoscroll::fit()
5897 };
5898
5899 let text_layout_details = &self.text_layout_details(cx);
5900
5901 self.change_selections(Some(autoscroll), cx, |s| {
5902 let line_mode = s.line_mode;
5903 s.move_with(|map, selection| {
5904 if !selection.is_empty() && !line_mode {
5905 selection.goal = SelectionGoal::None;
5906 }
5907 let (cursor, goal) = movement::up_by_rows(
5908 map,
5909 selection.end,
5910 row_count,
5911 selection.goal,
5912 false,
5913 &text_layout_details,
5914 );
5915 selection.collapse_to(cursor, goal);
5916 });
5917 });
5918 }
5919
5920 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5921 let text_layout_details = &self.text_layout_details(cx);
5922 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5923 s.move_heads_with(|map, head, goal| {
5924 movement::up(map, head, goal, false, &text_layout_details)
5925 })
5926 })
5927 }
5928
5929 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5930 self.take_rename(true, cx);
5931
5932 if self.mode == EditorMode::SingleLine {
5933 cx.propagate();
5934 return;
5935 }
5936
5937 let text_layout_details = &self.text_layout_details(cx);
5938 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5939 let line_mode = s.line_mode;
5940 s.move_with(|map, selection| {
5941 if !selection.is_empty() && !line_mode {
5942 selection.goal = SelectionGoal::None;
5943 }
5944 let (cursor, goal) = movement::down(
5945 map,
5946 selection.end,
5947 selection.goal,
5948 false,
5949 &text_layout_details,
5950 );
5951 selection.collapse_to(cursor, goal);
5952 });
5953 });
5954 }
5955
5956 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5957 if self.take_rename(true, cx).is_some() {
5958 return;
5959 }
5960
5961 if self
5962 .context_menu
5963 .write()
5964 .as_mut()
5965 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5966 .unwrap_or(false)
5967 {
5968 return;
5969 }
5970
5971 if matches!(self.mode, EditorMode::SingleLine) {
5972 cx.propagate();
5973 return;
5974 }
5975
5976 let row_count = if let Some(row_count) = self.visible_line_count() {
5977 row_count as u32 - 1
5978 } else {
5979 return;
5980 };
5981
5982 let autoscroll = if action.center_cursor {
5983 Autoscroll::center()
5984 } else {
5985 Autoscroll::fit()
5986 };
5987
5988 let text_layout_details = &self.text_layout_details(cx);
5989 self.change_selections(Some(autoscroll), cx, |s| {
5990 let line_mode = s.line_mode;
5991 s.move_with(|map, selection| {
5992 if !selection.is_empty() && !line_mode {
5993 selection.goal = SelectionGoal::None;
5994 }
5995 let (cursor, goal) = movement::down_by_rows(
5996 map,
5997 selection.end,
5998 row_count,
5999 selection.goal,
6000 false,
6001 &text_layout_details,
6002 );
6003 selection.collapse_to(cursor, goal);
6004 });
6005 });
6006 }
6007
6008 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6009 let text_layout_details = &self.text_layout_details(cx);
6010 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6011 s.move_heads_with(|map, head, goal| {
6012 movement::down(map, head, goal, false, &text_layout_details)
6013 })
6014 });
6015 }
6016
6017 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6018 if let Some(context_menu) = self.context_menu.write().as_mut() {
6019 context_menu.select_first(self.project.as_ref(), cx);
6020 }
6021 }
6022
6023 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6024 if let Some(context_menu) = self.context_menu.write().as_mut() {
6025 context_menu.select_prev(self.project.as_ref(), cx);
6026 }
6027 }
6028
6029 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6030 if let Some(context_menu) = self.context_menu.write().as_mut() {
6031 context_menu.select_next(self.project.as_ref(), cx);
6032 }
6033 }
6034
6035 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6036 if let Some(context_menu) = self.context_menu.write().as_mut() {
6037 context_menu.select_last(self.project.as_ref(), cx);
6038 }
6039 }
6040
6041 pub fn move_to_previous_word_start(
6042 &mut self,
6043 _: &MoveToPreviousWordStart,
6044 cx: &mut ViewContext<Self>,
6045 ) {
6046 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6047 s.move_cursors_with(|map, head, _| {
6048 (
6049 movement::previous_word_start(map, head),
6050 SelectionGoal::None,
6051 )
6052 });
6053 })
6054 }
6055
6056 pub fn move_to_previous_subword_start(
6057 &mut self,
6058 _: &MoveToPreviousSubwordStart,
6059 cx: &mut ViewContext<Self>,
6060 ) {
6061 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6062 s.move_cursors_with(|map, head, _| {
6063 (
6064 movement::previous_subword_start(map, head),
6065 SelectionGoal::None,
6066 )
6067 });
6068 })
6069 }
6070
6071 pub fn select_to_previous_word_start(
6072 &mut self,
6073 _: &SelectToPreviousWordStart,
6074 cx: &mut ViewContext<Self>,
6075 ) {
6076 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6077 s.move_heads_with(|map, head, _| {
6078 (
6079 movement::previous_word_start(map, head),
6080 SelectionGoal::None,
6081 )
6082 });
6083 })
6084 }
6085
6086 pub fn select_to_previous_subword_start(
6087 &mut self,
6088 _: &SelectToPreviousSubwordStart,
6089 cx: &mut ViewContext<Self>,
6090 ) {
6091 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6092 s.move_heads_with(|map, head, _| {
6093 (
6094 movement::previous_subword_start(map, head),
6095 SelectionGoal::None,
6096 )
6097 });
6098 })
6099 }
6100
6101 pub fn delete_to_previous_word_start(
6102 &mut self,
6103 _: &DeleteToPreviousWordStart,
6104 cx: &mut ViewContext<Self>,
6105 ) {
6106 self.transact(cx, |this, cx| {
6107 this.select_autoclose_pair(cx);
6108 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6109 let line_mode = s.line_mode;
6110 s.move_with(|map, selection| {
6111 if selection.is_empty() && !line_mode {
6112 let cursor = movement::previous_word_start(map, selection.head());
6113 selection.set_head(cursor, SelectionGoal::None);
6114 }
6115 });
6116 });
6117 this.insert("", cx);
6118 });
6119 }
6120
6121 pub fn delete_to_previous_subword_start(
6122 &mut self,
6123 _: &DeleteToPreviousSubwordStart,
6124 cx: &mut ViewContext<Self>,
6125 ) {
6126 self.transact(cx, |this, cx| {
6127 this.select_autoclose_pair(cx);
6128 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6129 let line_mode = s.line_mode;
6130 s.move_with(|map, selection| {
6131 if selection.is_empty() && !line_mode {
6132 let cursor = movement::previous_subword_start(map, selection.head());
6133 selection.set_head(cursor, SelectionGoal::None);
6134 }
6135 });
6136 });
6137 this.insert("", cx);
6138 });
6139 }
6140
6141 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6142 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6143 s.move_cursors_with(|map, head, _| {
6144 (movement::next_word_end(map, head), SelectionGoal::None)
6145 });
6146 })
6147 }
6148
6149 pub fn move_to_next_subword_end(
6150 &mut self,
6151 _: &MoveToNextSubwordEnd,
6152 cx: &mut ViewContext<Self>,
6153 ) {
6154 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6155 s.move_cursors_with(|map, head, _| {
6156 (movement::next_subword_end(map, head), SelectionGoal::None)
6157 });
6158 })
6159 }
6160
6161 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6162 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6163 s.move_heads_with(|map, head, _| {
6164 (movement::next_word_end(map, head), SelectionGoal::None)
6165 });
6166 })
6167 }
6168
6169 pub fn select_to_next_subword_end(
6170 &mut self,
6171 _: &SelectToNextSubwordEnd,
6172 cx: &mut ViewContext<Self>,
6173 ) {
6174 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6175 s.move_heads_with(|map, head, _| {
6176 (movement::next_subword_end(map, head), SelectionGoal::None)
6177 });
6178 })
6179 }
6180
6181 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6182 self.transact(cx, |this, cx| {
6183 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6184 let line_mode = s.line_mode;
6185 s.move_with(|map, selection| {
6186 if selection.is_empty() && !line_mode {
6187 let cursor = movement::next_word_end(map, selection.head());
6188 selection.set_head(cursor, SelectionGoal::None);
6189 }
6190 });
6191 });
6192 this.insert("", cx);
6193 });
6194 }
6195
6196 pub fn delete_to_next_subword_end(
6197 &mut self,
6198 _: &DeleteToNextSubwordEnd,
6199 cx: &mut ViewContext<Self>,
6200 ) {
6201 self.transact(cx, |this, cx| {
6202 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6203 s.move_with(|map, selection| {
6204 if selection.is_empty() {
6205 let cursor = movement::next_subword_end(map, selection.head());
6206 selection.set_head(cursor, SelectionGoal::None);
6207 }
6208 });
6209 });
6210 this.insert("", cx);
6211 });
6212 }
6213
6214 pub fn move_to_beginning_of_line(
6215 &mut self,
6216 _: &MoveToBeginningOfLine,
6217 cx: &mut ViewContext<Self>,
6218 ) {
6219 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6220 s.move_cursors_with(|map, head, _| {
6221 (
6222 movement::indented_line_beginning(map, head, true),
6223 SelectionGoal::None,
6224 )
6225 });
6226 })
6227 }
6228
6229 pub fn select_to_beginning_of_line(
6230 &mut self,
6231 action: &SelectToBeginningOfLine,
6232 cx: &mut ViewContext<Self>,
6233 ) {
6234 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6235 s.move_heads_with(|map, head, _| {
6236 (
6237 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6238 SelectionGoal::None,
6239 )
6240 });
6241 });
6242 }
6243
6244 pub fn delete_to_beginning_of_line(
6245 &mut self,
6246 _: &DeleteToBeginningOfLine,
6247 cx: &mut ViewContext<Self>,
6248 ) {
6249 self.transact(cx, |this, cx| {
6250 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6251 s.move_with(|_, selection| {
6252 selection.reversed = true;
6253 });
6254 });
6255
6256 this.select_to_beginning_of_line(
6257 &SelectToBeginningOfLine {
6258 stop_at_soft_wraps: false,
6259 },
6260 cx,
6261 );
6262 this.backspace(&Backspace, cx);
6263 });
6264 }
6265
6266 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6267 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6268 s.move_cursors_with(|map, head, _| {
6269 (movement::line_end(map, head, true), SelectionGoal::None)
6270 });
6271 })
6272 }
6273
6274 pub fn select_to_end_of_line(
6275 &mut self,
6276 action: &SelectToEndOfLine,
6277 cx: &mut ViewContext<Self>,
6278 ) {
6279 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6280 s.move_heads_with(|map, head, _| {
6281 (
6282 movement::line_end(map, head, action.stop_at_soft_wraps),
6283 SelectionGoal::None,
6284 )
6285 });
6286 })
6287 }
6288
6289 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6290 self.transact(cx, |this, cx| {
6291 this.select_to_end_of_line(
6292 &SelectToEndOfLine {
6293 stop_at_soft_wraps: false,
6294 },
6295 cx,
6296 );
6297 this.delete(&Delete, cx);
6298 });
6299 }
6300
6301 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6302 self.transact(cx, |this, cx| {
6303 this.select_to_end_of_line(
6304 &SelectToEndOfLine {
6305 stop_at_soft_wraps: false,
6306 },
6307 cx,
6308 );
6309 this.cut(&Cut, cx);
6310 });
6311 }
6312
6313 pub fn move_to_start_of_paragraph(
6314 &mut self,
6315 _: &MoveToStartOfParagraph,
6316 cx: &mut ViewContext<Self>,
6317 ) {
6318 if matches!(self.mode, EditorMode::SingleLine) {
6319 cx.propagate();
6320 return;
6321 }
6322
6323 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6324 s.move_with(|map, selection| {
6325 selection.collapse_to(
6326 movement::start_of_paragraph(map, selection.head(), 1),
6327 SelectionGoal::None,
6328 )
6329 });
6330 })
6331 }
6332
6333 pub fn move_to_end_of_paragraph(
6334 &mut self,
6335 _: &MoveToEndOfParagraph,
6336 cx: &mut ViewContext<Self>,
6337 ) {
6338 if matches!(self.mode, EditorMode::SingleLine) {
6339 cx.propagate();
6340 return;
6341 }
6342
6343 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6344 s.move_with(|map, selection| {
6345 selection.collapse_to(
6346 movement::end_of_paragraph(map, selection.head(), 1),
6347 SelectionGoal::None,
6348 )
6349 });
6350 })
6351 }
6352
6353 pub fn select_to_start_of_paragraph(
6354 &mut self,
6355 _: &SelectToStartOfParagraph,
6356 cx: &mut ViewContext<Self>,
6357 ) {
6358 if matches!(self.mode, EditorMode::SingleLine) {
6359 cx.propagate();
6360 return;
6361 }
6362
6363 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6364 s.move_heads_with(|map, head, _| {
6365 (
6366 movement::start_of_paragraph(map, head, 1),
6367 SelectionGoal::None,
6368 )
6369 });
6370 })
6371 }
6372
6373 pub fn select_to_end_of_paragraph(
6374 &mut self,
6375 _: &SelectToEndOfParagraph,
6376 cx: &mut ViewContext<Self>,
6377 ) {
6378 if matches!(self.mode, EditorMode::SingleLine) {
6379 cx.propagate();
6380 return;
6381 }
6382
6383 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6384 s.move_heads_with(|map, head, _| {
6385 (
6386 movement::end_of_paragraph(map, head, 1),
6387 SelectionGoal::None,
6388 )
6389 });
6390 })
6391 }
6392
6393 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6394 if matches!(self.mode, EditorMode::SingleLine) {
6395 cx.propagate();
6396 return;
6397 }
6398
6399 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6400 s.select_ranges(vec![0..0]);
6401 });
6402 }
6403
6404 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6405 let mut selection = self.selections.last::<Point>(cx);
6406 selection.set_head(Point::zero(), SelectionGoal::None);
6407
6408 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6409 s.select(vec![selection]);
6410 });
6411 }
6412
6413 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6414 if matches!(self.mode, EditorMode::SingleLine) {
6415 cx.propagate();
6416 return;
6417 }
6418
6419 let cursor = self.buffer.read(cx).read(cx).len();
6420 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6421 s.select_ranges(vec![cursor..cursor])
6422 });
6423 }
6424
6425 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6426 self.nav_history = nav_history;
6427 }
6428
6429 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6430 self.nav_history.as_ref()
6431 }
6432
6433 fn push_to_nav_history(
6434 &mut self,
6435 cursor_anchor: Anchor,
6436 new_position: Option<Point>,
6437 cx: &mut ViewContext<Self>,
6438 ) {
6439 if let Some(nav_history) = self.nav_history.as_mut() {
6440 let buffer = self.buffer.read(cx).read(cx);
6441 let cursor_position = cursor_anchor.to_point(&buffer);
6442 let scroll_state = self.scroll_manager.anchor();
6443 let scroll_top_row = scroll_state.top_row(&buffer);
6444 drop(buffer);
6445
6446 if let Some(new_position) = new_position {
6447 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6448 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6449 return;
6450 }
6451 }
6452
6453 nav_history.push(
6454 Some(NavigationData {
6455 cursor_anchor,
6456 cursor_position,
6457 scroll_anchor: scroll_state,
6458 scroll_top_row,
6459 }),
6460 cx,
6461 );
6462 }
6463 }
6464
6465 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6466 let buffer = self.buffer.read(cx).snapshot(cx);
6467 let mut selection = self.selections.first::<usize>(cx);
6468 selection.set_head(buffer.len(), SelectionGoal::None);
6469 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6470 s.select(vec![selection]);
6471 });
6472 }
6473
6474 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6475 let end = self.buffer.read(cx).read(cx).len();
6476 self.change_selections(None, cx, |s| {
6477 s.select_ranges(vec![0..end]);
6478 });
6479 }
6480
6481 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6482 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6483 let mut selections = self.selections.all::<Point>(cx);
6484 let max_point = display_map.buffer_snapshot.max_point();
6485 for selection in &mut selections {
6486 let rows = selection.spanned_rows(true, &display_map);
6487 selection.start = Point::new(rows.start, 0);
6488 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6489 selection.reversed = false;
6490 }
6491 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6492 s.select(selections);
6493 });
6494 }
6495
6496 pub fn split_selection_into_lines(
6497 &mut self,
6498 _: &SplitSelectionIntoLines,
6499 cx: &mut ViewContext<Self>,
6500 ) {
6501 let mut to_unfold = Vec::new();
6502 let mut new_selection_ranges = Vec::new();
6503 {
6504 let selections = self.selections.all::<Point>(cx);
6505 let buffer = self.buffer.read(cx).read(cx);
6506 for selection in selections {
6507 for row in selection.start.row..selection.end.row {
6508 let cursor = Point::new(row, buffer.line_len(row));
6509 new_selection_ranges.push(cursor..cursor);
6510 }
6511 new_selection_ranges.push(selection.end..selection.end);
6512 to_unfold.push(selection.start..selection.end);
6513 }
6514 }
6515 self.unfold_ranges(to_unfold, true, true, cx);
6516 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6517 s.select_ranges(new_selection_ranges);
6518 });
6519 }
6520
6521 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6522 self.add_selection(true, cx);
6523 }
6524
6525 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6526 self.add_selection(false, cx);
6527 }
6528
6529 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6530 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6531 let mut selections = self.selections.all::<Point>(cx);
6532 let text_layout_details = self.text_layout_details(cx);
6533 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6534 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6535 let range = oldest_selection.display_range(&display_map).sorted();
6536
6537 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6538 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6539 let positions = start_x.min(end_x)..start_x.max(end_x);
6540
6541 selections.clear();
6542 let mut stack = Vec::new();
6543 for row in range.start.row()..=range.end.row() {
6544 if let Some(selection) = self.selections.build_columnar_selection(
6545 &display_map,
6546 row,
6547 &positions,
6548 oldest_selection.reversed,
6549 &text_layout_details,
6550 ) {
6551 stack.push(selection.id);
6552 selections.push(selection);
6553 }
6554 }
6555
6556 if above {
6557 stack.reverse();
6558 }
6559
6560 AddSelectionsState { above, stack }
6561 });
6562
6563 let last_added_selection = *state.stack.last().unwrap();
6564 let mut new_selections = Vec::new();
6565 if above == state.above {
6566 let end_row = if above {
6567 0
6568 } else {
6569 display_map.max_point().row()
6570 };
6571
6572 'outer: for selection in selections {
6573 if selection.id == last_added_selection {
6574 let range = selection.display_range(&display_map).sorted();
6575 debug_assert_eq!(range.start.row(), range.end.row());
6576 let mut row = range.start.row();
6577 let positions =
6578 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6579 px(start)..px(end)
6580 } else {
6581 let start_x =
6582 display_map.x_for_display_point(range.start, &text_layout_details);
6583 let end_x =
6584 display_map.x_for_display_point(range.end, &text_layout_details);
6585 start_x.min(end_x)..start_x.max(end_x)
6586 };
6587
6588 while row != end_row {
6589 if above {
6590 row -= 1;
6591 } else {
6592 row += 1;
6593 }
6594
6595 if let Some(new_selection) = self.selections.build_columnar_selection(
6596 &display_map,
6597 row,
6598 &positions,
6599 selection.reversed,
6600 &text_layout_details,
6601 ) {
6602 state.stack.push(new_selection.id);
6603 if above {
6604 new_selections.push(new_selection);
6605 new_selections.push(selection);
6606 } else {
6607 new_selections.push(selection);
6608 new_selections.push(new_selection);
6609 }
6610
6611 continue 'outer;
6612 }
6613 }
6614 }
6615
6616 new_selections.push(selection);
6617 }
6618 } else {
6619 new_selections = selections;
6620 new_selections.retain(|s| s.id != last_added_selection);
6621 state.stack.pop();
6622 }
6623
6624 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6625 s.select(new_selections);
6626 });
6627 if state.stack.len() > 1 {
6628 self.add_selections_state = Some(state);
6629 }
6630 }
6631
6632 pub fn select_next_match_internal(
6633 &mut self,
6634 display_map: &DisplaySnapshot,
6635 replace_newest: bool,
6636 autoscroll: Option<Autoscroll>,
6637 cx: &mut ViewContext<Self>,
6638 ) -> Result<()> {
6639 fn select_next_match_ranges(
6640 this: &mut Editor,
6641 range: Range<usize>,
6642 replace_newest: bool,
6643 auto_scroll: Option<Autoscroll>,
6644 cx: &mut ViewContext<Editor>,
6645 ) {
6646 this.unfold_ranges([range.clone()], false, true, cx);
6647 this.change_selections(auto_scroll, cx, |s| {
6648 if replace_newest {
6649 s.delete(s.newest_anchor().id);
6650 }
6651 s.insert_range(range.clone());
6652 });
6653 }
6654
6655 let buffer = &display_map.buffer_snapshot;
6656 let mut selections = self.selections.all::<usize>(cx);
6657 if let Some(mut select_next_state) = self.select_next_state.take() {
6658 let query = &select_next_state.query;
6659 if !select_next_state.done {
6660 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6661 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6662 let mut next_selected_range = None;
6663
6664 let bytes_after_last_selection =
6665 buffer.bytes_in_range(last_selection.end..buffer.len());
6666 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6667 let query_matches = query
6668 .stream_find_iter(bytes_after_last_selection)
6669 .map(|result| (last_selection.end, result))
6670 .chain(
6671 query
6672 .stream_find_iter(bytes_before_first_selection)
6673 .map(|result| (0, result)),
6674 );
6675
6676 for (start_offset, query_match) in query_matches {
6677 let query_match = query_match.unwrap(); // can only fail due to I/O
6678 let offset_range =
6679 start_offset + query_match.start()..start_offset + query_match.end();
6680 let display_range = offset_range.start.to_display_point(&display_map)
6681 ..offset_range.end.to_display_point(&display_map);
6682
6683 if !select_next_state.wordwise
6684 || (!movement::is_inside_word(&display_map, display_range.start)
6685 && !movement::is_inside_word(&display_map, display_range.end))
6686 {
6687 // TODO: This is n^2, because we might check all the selections
6688 if !selections
6689 .iter()
6690 .any(|selection| selection.range().overlaps(&offset_range))
6691 {
6692 next_selected_range = Some(offset_range);
6693 break;
6694 }
6695 }
6696 }
6697
6698 if let Some(next_selected_range) = next_selected_range {
6699 select_next_match_ranges(
6700 self,
6701 next_selected_range,
6702 replace_newest,
6703 autoscroll,
6704 cx,
6705 );
6706 } else {
6707 select_next_state.done = true;
6708 }
6709 }
6710
6711 self.select_next_state = Some(select_next_state);
6712 } else {
6713 let mut only_carets = true;
6714 let mut same_text_selected = true;
6715 let mut selected_text = None;
6716
6717 let mut selections_iter = selections.iter().peekable();
6718 while let Some(selection) = selections_iter.next() {
6719 if selection.start != selection.end {
6720 only_carets = false;
6721 }
6722
6723 if same_text_selected {
6724 if selected_text.is_none() {
6725 selected_text =
6726 Some(buffer.text_for_range(selection.range()).collect::<String>());
6727 }
6728
6729 if let Some(next_selection) = selections_iter.peek() {
6730 if next_selection.range().len() == selection.range().len() {
6731 let next_selected_text = buffer
6732 .text_for_range(next_selection.range())
6733 .collect::<String>();
6734 if Some(next_selected_text) != selected_text {
6735 same_text_selected = false;
6736 selected_text = None;
6737 }
6738 } else {
6739 same_text_selected = false;
6740 selected_text = None;
6741 }
6742 }
6743 }
6744 }
6745
6746 if only_carets {
6747 for selection in &mut selections {
6748 let word_range = movement::surrounding_word(
6749 &display_map,
6750 selection.start.to_display_point(&display_map),
6751 );
6752 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6753 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6754 selection.goal = SelectionGoal::None;
6755 selection.reversed = false;
6756 select_next_match_ranges(
6757 self,
6758 selection.start..selection.end,
6759 replace_newest,
6760 autoscroll,
6761 cx,
6762 );
6763 }
6764
6765 if selections.len() == 1 {
6766 let selection = selections
6767 .last()
6768 .expect("ensured that there's only one selection");
6769 let query = buffer
6770 .text_for_range(selection.start..selection.end)
6771 .collect::<String>();
6772 let is_empty = query.is_empty();
6773 let select_state = SelectNextState {
6774 query: AhoCorasick::new(&[query])?,
6775 wordwise: true,
6776 done: is_empty,
6777 };
6778 self.select_next_state = Some(select_state);
6779 } else {
6780 self.select_next_state = None;
6781 }
6782 } else if let Some(selected_text) = selected_text {
6783 self.select_next_state = Some(SelectNextState {
6784 query: AhoCorasick::new(&[selected_text])?,
6785 wordwise: false,
6786 done: false,
6787 });
6788 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6789 }
6790 }
6791 Ok(())
6792 }
6793
6794 pub fn select_all_matches(
6795 &mut self,
6796 _action: &SelectAllMatches,
6797 cx: &mut ViewContext<Self>,
6798 ) -> Result<()> {
6799 self.push_to_selection_history();
6800 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6801
6802 self.select_next_match_internal(&display_map, false, None, cx)?;
6803 let Some(select_next_state) = self.select_next_state.as_mut() else {
6804 return Ok(());
6805 };
6806 if select_next_state.done {
6807 return Ok(());
6808 }
6809
6810 let mut new_selections = self.selections.all::<usize>(cx);
6811
6812 let buffer = &display_map.buffer_snapshot;
6813 let query_matches = select_next_state
6814 .query
6815 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6816
6817 for query_match in query_matches {
6818 let query_match = query_match.unwrap(); // can only fail due to I/O
6819 let offset_range = query_match.start()..query_match.end();
6820 let display_range = offset_range.start.to_display_point(&display_map)
6821 ..offset_range.end.to_display_point(&display_map);
6822
6823 if !select_next_state.wordwise
6824 || (!movement::is_inside_word(&display_map, display_range.start)
6825 && !movement::is_inside_word(&display_map, display_range.end))
6826 {
6827 self.selections.change_with(cx, |selections| {
6828 new_selections.push(Selection {
6829 id: selections.new_selection_id(),
6830 start: offset_range.start,
6831 end: offset_range.end,
6832 reversed: false,
6833 goal: SelectionGoal::None,
6834 });
6835 });
6836 }
6837 }
6838
6839 new_selections.sort_by_key(|selection| selection.start);
6840 let mut ix = 0;
6841 while ix + 1 < new_selections.len() {
6842 let current_selection = &new_selections[ix];
6843 let next_selection = &new_selections[ix + 1];
6844 if current_selection.range().overlaps(&next_selection.range()) {
6845 if current_selection.id < next_selection.id {
6846 new_selections.remove(ix + 1);
6847 } else {
6848 new_selections.remove(ix);
6849 }
6850 } else {
6851 ix += 1;
6852 }
6853 }
6854
6855 select_next_state.done = true;
6856 self.unfold_ranges(
6857 new_selections.iter().map(|selection| selection.range()),
6858 false,
6859 false,
6860 cx,
6861 );
6862 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6863 selections.select(new_selections)
6864 });
6865
6866 Ok(())
6867 }
6868
6869 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6870 self.push_to_selection_history();
6871 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6872 self.select_next_match_internal(
6873 &display_map,
6874 action.replace_newest,
6875 Some(Autoscroll::newest()),
6876 cx,
6877 )?;
6878 Ok(())
6879 }
6880
6881 pub fn select_previous(
6882 &mut self,
6883 action: &SelectPrevious,
6884 cx: &mut ViewContext<Self>,
6885 ) -> Result<()> {
6886 self.push_to_selection_history();
6887 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6888 let buffer = &display_map.buffer_snapshot;
6889 let mut selections = self.selections.all::<usize>(cx);
6890 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6891 let query = &select_prev_state.query;
6892 if !select_prev_state.done {
6893 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6894 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6895 let mut next_selected_range = None;
6896 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6897 let bytes_before_last_selection =
6898 buffer.reversed_bytes_in_range(0..last_selection.start);
6899 let bytes_after_first_selection =
6900 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6901 let query_matches = query
6902 .stream_find_iter(bytes_before_last_selection)
6903 .map(|result| (last_selection.start, result))
6904 .chain(
6905 query
6906 .stream_find_iter(bytes_after_first_selection)
6907 .map(|result| (buffer.len(), result)),
6908 );
6909 for (end_offset, query_match) in query_matches {
6910 let query_match = query_match.unwrap(); // can only fail due to I/O
6911 let offset_range =
6912 end_offset - query_match.end()..end_offset - query_match.start();
6913 let display_range = offset_range.start.to_display_point(&display_map)
6914 ..offset_range.end.to_display_point(&display_map);
6915
6916 if !select_prev_state.wordwise
6917 || (!movement::is_inside_word(&display_map, display_range.start)
6918 && !movement::is_inside_word(&display_map, display_range.end))
6919 {
6920 next_selected_range = Some(offset_range);
6921 break;
6922 }
6923 }
6924
6925 if let Some(next_selected_range) = next_selected_range {
6926 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6927 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6928 if action.replace_newest {
6929 s.delete(s.newest_anchor().id);
6930 }
6931 s.insert_range(next_selected_range);
6932 });
6933 } else {
6934 select_prev_state.done = true;
6935 }
6936 }
6937
6938 self.select_prev_state = Some(select_prev_state);
6939 } else {
6940 let mut only_carets = true;
6941 let mut same_text_selected = true;
6942 let mut selected_text = None;
6943
6944 let mut selections_iter = selections.iter().peekable();
6945 while let Some(selection) = selections_iter.next() {
6946 if selection.start != selection.end {
6947 only_carets = false;
6948 }
6949
6950 if same_text_selected {
6951 if selected_text.is_none() {
6952 selected_text =
6953 Some(buffer.text_for_range(selection.range()).collect::<String>());
6954 }
6955
6956 if let Some(next_selection) = selections_iter.peek() {
6957 if next_selection.range().len() == selection.range().len() {
6958 let next_selected_text = buffer
6959 .text_for_range(next_selection.range())
6960 .collect::<String>();
6961 if Some(next_selected_text) != selected_text {
6962 same_text_selected = false;
6963 selected_text = None;
6964 }
6965 } else {
6966 same_text_selected = false;
6967 selected_text = None;
6968 }
6969 }
6970 }
6971 }
6972
6973 if only_carets {
6974 for selection in &mut selections {
6975 let word_range = movement::surrounding_word(
6976 &display_map,
6977 selection.start.to_display_point(&display_map),
6978 );
6979 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6980 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6981 selection.goal = SelectionGoal::None;
6982 selection.reversed = false;
6983 }
6984 if selections.len() == 1 {
6985 let selection = selections
6986 .last()
6987 .expect("ensured that there's only one selection");
6988 let query = buffer
6989 .text_for_range(selection.start..selection.end)
6990 .collect::<String>();
6991 let is_empty = query.is_empty();
6992 let select_state = SelectNextState {
6993 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6994 wordwise: true,
6995 done: is_empty,
6996 };
6997 self.select_prev_state = Some(select_state);
6998 } else {
6999 self.select_prev_state = None;
7000 }
7001
7002 self.unfold_ranges(
7003 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7004 false,
7005 true,
7006 cx,
7007 );
7008 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7009 s.select(selections);
7010 });
7011 } else if let Some(selected_text) = selected_text {
7012 self.select_prev_state = Some(SelectNextState {
7013 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7014 wordwise: false,
7015 done: false,
7016 });
7017 self.select_previous(action, cx)?;
7018 }
7019 }
7020 Ok(())
7021 }
7022
7023 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7024 let text_layout_details = &self.text_layout_details(cx);
7025 self.transact(cx, |this, cx| {
7026 let mut selections = this.selections.all::<Point>(cx);
7027 let mut edits = Vec::new();
7028 let mut selection_edit_ranges = Vec::new();
7029 let mut last_toggled_row = None;
7030 let snapshot = this.buffer.read(cx).read(cx);
7031 let empty_str: Arc<str> = "".into();
7032 let mut suffixes_inserted = Vec::new();
7033
7034 fn comment_prefix_range(
7035 snapshot: &MultiBufferSnapshot,
7036 row: u32,
7037 comment_prefix: &str,
7038 comment_prefix_whitespace: &str,
7039 ) -> Range<Point> {
7040 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
7041
7042 let mut line_bytes = snapshot
7043 .bytes_in_range(start..snapshot.max_point())
7044 .flatten()
7045 .copied();
7046
7047 // If this line currently begins with the line comment prefix, then record
7048 // the range containing the prefix.
7049 if line_bytes
7050 .by_ref()
7051 .take(comment_prefix.len())
7052 .eq(comment_prefix.bytes())
7053 {
7054 // Include any whitespace that matches the comment prefix.
7055 let matching_whitespace_len = line_bytes
7056 .zip(comment_prefix_whitespace.bytes())
7057 .take_while(|(a, b)| a == b)
7058 .count() as u32;
7059 let end = Point::new(
7060 start.row,
7061 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7062 );
7063 start..end
7064 } else {
7065 start..start
7066 }
7067 }
7068
7069 fn comment_suffix_range(
7070 snapshot: &MultiBufferSnapshot,
7071 row: u32,
7072 comment_suffix: &str,
7073 comment_suffix_has_leading_space: bool,
7074 ) -> Range<Point> {
7075 let end = Point::new(row, snapshot.line_len(row));
7076 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7077
7078 let mut line_end_bytes = snapshot
7079 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7080 .flatten()
7081 .copied();
7082
7083 let leading_space_len = if suffix_start_column > 0
7084 && line_end_bytes.next() == Some(b' ')
7085 && comment_suffix_has_leading_space
7086 {
7087 1
7088 } else {
7089 0
7090 };
7091
7092 // If this line currently begins with the line comment prefix, then record
7093 // the range containing the prefix.
7094 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7095 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7096 start..end
7097 } else {
7098 end..end
7099 }
7100 }
7101
7102 // TODO: Handle selections that cross excerpts
7103 for selection in &mut selections {
7104 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7105 let language = if let Some(language) =
7106 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7107 {
7108 language
7109 } else {
7110 continue;
7111 };
7112
7113 selection_edit_ranges.clear();
7114
7115 // If multiple selections contain a given row, avoid processing that
7116 // row more than once.
7117 let mut start_row = selection.start.row;
7118 if last_toggled_row == Some(start_row) {
7119 start_row += 1;
7120 }
7121 let end_row =
7122 if selection.end.row > selection.start.row && selection.end.column == 0 {
7123 selection.end.row - 1
7124 } else {
7125 selection.end.row
7126 };
7127 last_toggled_row = Some(end_row);
7128
7129 if start_row > end_row {
7130 continue;
7131 }
7132
7133 // If the language has line comments, toggle those.
7134 if let Some(full_comment_prefix) = language
7135 .line_comment_prefixes()
7136 .and_then(|prefixes| prefixes.first())
7137 {
7138 // Split the comment prefix's trailing whitespace into a separate string,
7139 // as that portion won't be used for detecting if a line is a comment.
7140 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7141 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7142 let mut all_selection_lines_are_comments = true;
7143
7144 for row in start_row..=end_row {
7145 if start_row < end_row && snapshot.is_line_blank(row) {
7146 continue;
7147 }
7148
7149 let prefix_range = comment_prefix_range(
7150 snapshot.deref(),
7151 row,
7152 comment_prefix,
7153 comment_prefix_whitespace,
7154 );
7155 if prefix_range.is_empty() {
7156 all_selection_lines_are_comments = false;
7157 }
7158 selection_edit_ranges.push(prefix_range);
7159 }
7160
7161 if all_selection_lines_are_comments {
7162 edits.extend(
7163 selection_edit_ranges
7164 .iter()
7165 .cloned()
7166 .map(|range| (range, empty_str.clone())),
7167 );
7168 } else {
7169 let min_column = selection_edit_ranges
7170 .iter()
7171 .map(|r| r.start.column)
7172 .min()
7173 .unwrap_or(0);
7174 edits.extend(selection_edit_ranges.iter().map(|range| {
7175 let position = Point::new(range.start.row, min_column);
7176 (position..position, full_comment_prefix.clone())
7177 }));
7178 }
7179 } else if let Some((full_comment_prefix, comment_suffix)) =
7180 language.block_comment_delimiters()
7181 {
7182 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7183 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7184 let prefix_range = comment_prefix_range(
7185 snapshot.deref(),
7186 start_row,
7187 comment_prefix,
7188 comment_prefix_whitespace,
7189 );
7190 let suffix_range = comment_suffix_range(
7191 snapshot.deref(),
7192 end_row,
7193 comment_suffix.trim_start_matches(' '),
7194 comment_suffix.starts_with(' '),
7195 );
7196
7197 if prefix_range.is_empty() || suffix_range.is_empty() {
7198 edits.push((
7199 prefix_range.start..prefix_range.start,
7200 full_comment_prefix.clone(),
7201 ));
7202 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7203 suffixes_inserted.push((end_row, comment_suffix.len()));
7204 } else {
7205 edits.push((prefix_range, empty_str.clone()));
7206 edits.push((suffix_range, empty_str.clone()));
7207 }
7208 } else {
7209 continue;
7210 }
7211 }
7212
7213 drop(snapshot);
7214 this.buffer.update(cx, |buffer, cx| {
7215 buffer.edit(edits, None, cx);
7216 });
7217
7218 // Adjust selections so that they end before any comment suffixes that
7219 // were inserted.
7220 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7221 let mut selections = this.selections.all::<Point>(cx);
7222 let snapshot = this.buffer.read(cx).read(cx);
7223 for selection in &mut selections {
7224 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7225 match row.cmp(&selection.end.row) {
7226 Ordering::Less => {
7227 suffixes_inserted.next();
7228 continue;
7229 }
7230 Ordering::Greater => break,
7231 Ordering::Equal => {
7232 if selection.end.column == snapshot.line_len(row) {
7233 if selection.is_empty() {
7234 selection.start.column -= suffix_len as u32;
7235 }
7236 selection.end.column -= suffix_len as u32;
7237 }
7238 break;
7239 }
7240 }
7241 }
7242 }
7243
7244 drop(snapshot);
7245 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7246
7247 let selections = this.selections.all::<Point>(cx);
7248 let selections_on_single_row = selections.windows(2).all(|selections| {
7249 selections[0].start.row == selections[1].start.row
7250 && selections[0].end.row == selections[1].end.row
7251 && selections[0].start.row == selections[0].end.row
7252 });
7253 let selections_selecting = selections
7254 .iter()
7255 .any(|selection| selection.start != selection.end);
7256 let advance_downwards = action.advance_downwards
7257 && selections_on_single_row
7258 && !selections_selecting
7259 && this.mode != EditorMode::SingleLine;
7260
7261 if advance_downwards {
7262 let snapshot = this.buffer.read(cx).snapshot(cx);
7263
7264 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7265 s.move_cursors_with(|display_snapshot, display_point, _| {
7266 let mut point = display_point.to_point(display_snapshot);
7267 point.row += 1;
7268 point = snapshot.clip_point(point, Bias::Left);
7269 let display_point = point.to_display_point(display_snapshot);
7270 let goal = SelectionGoal::HorizontalPosition(
7271 display_snapshot
7272 .x_for_display_point(display_point, &text_layout_details)
7273 .into(),
7274 );
7275 (display_point, goal)
7276 })
7277 });
7278 }
7279 });
7280 }
7281
7282 pub fn select_larger_syntax_node(
7283 &mut self,
7284 _: &SelectLargerSyntaxNode,
7285 cx: &mut ViewContext<Self>,
7286 ) {
7287 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7288 let buffer = self.buffer.read(cx).snapshot(cx);
7289 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7290
7291 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7292 let mut selected_larger_node = false;
7293 let new_selections = old_selections
7294 .iter()
7295 .map(|selection| {
7296 let old_range = selection.start..selection.end;
7297 let mut new_range = old_range.clone();
7298 while let Some(containing_range) =
7299 buffer.range_for_syntax_ancestor(new_range.clone())
7300 {
7301 new_range = containing_range;
7302 if !display_map.intersects_fold(new_range.start)
7303 && !display_map.intersects_fold(new_range.end)
7304 {
7305 break;
7306 }
7307 }
7308
7309 selected_larger_node |= new_range != old_range;
7310 Selection {
7311 id: selection.id,
7312 start: new_range.start,
7313 end: new_range.end,
7314 goal: SelectionGoal::None,
7315 reversed: selection.reversed,
7316 }
7317 })
7318 .collect::<Vec<_>>();
7319
7320 if selected_larger_node {
7321 stack.push(old_selections);
7322 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7323 s.select(new_selections);
7324 });
7325 }
7326 self.select_larger_syntax_node_stack = stack;
7327 }
7328
7329 pub fn select_smaller_syntax_node(
7330 &mut self,
7331 _: &SelectSmallerSyntaxNode,
7332 cx: &mut ViewContext<Self>,
7333 ) {
7334 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7335 if let Some(selections) = stack.pop() {
7336 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7337 s.select(selections.to_vec());
7338 });
7339 }
7340 self.select_larger_syntax_node_stack = stack;
7341 }
7342
7343 pub fn move_to_enclosing_bracket(
7344 &mut self,
7345 _: &MoveToEnclosingBracket,
7346 cx: &mut ViewContext<Self>,
7347 ) {
7348 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7349 s.move_offsets_with(|snapshot, selection| {
7350 let Some(enclosing_bracket_ranges) =
7351 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7352 else {
7353 return;
7354 };
7355
7356 let mut best_length = usize::MAX;
7357 let mut best_inside = false;
7358 let mut best_in_bracket_range = false;
7359 let mut best_destination = None;
7360 for (open, close) in enclosing_bracket_ranges {
7361 let close = close.to_inclusive();
7362 let length = close.end() - open.start;
7363 let inside = selection.start >= open.end && selection.end <= *close.start();
7364 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7365 || close.contains(&selection.head());
7366
7367 // If best is next to a bracket and current isn't, skip
7368 if !in_bracket_range && best_in_bracket_range {
7369 continue;
7370 }
7371
7372 // Prefer smaller lengths unless best is inside and current isn't
7373 if length > best_length && (best_inside || !inside) {
7374 continue;
7375 }
7376
7377 best_length = length;
7378 best_inside = inside;
7379 best_in_bracket_range = in_bracket_range;
7380 best_destination = Some(
7381 if close.contains(&selection.start) && close.contains(&selection.end) {
7382 if inside {
7383 open.end
7384 } else {
7385 open.start
7386 }
7387 } else {
7388 if inside {
7389 *close.start()
7390 } else {
7391 *close.end()
7392 }
7393 },
7394 );
7395 }
7396
7397 if let Some(destination) = best_destination {
7398 selection.collapse_to(destination, SelectionGoal::None);
7399 }
7400 })
7401 });
7402 }
7403
7404 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7405 self.end_selection(cx);
7406 self.selection_history.mode = SelectionHistoryMode::Undoing;
7407 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7408 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7409 self.select_next_state = entry.select_next_state;
7410 self.select_prev_state = entry.select_prev_state;
7411 self.add_selections_state = entry.add_selections_state;
7412 self.request_autoscroll(Autoscroll::newest(), cx);
7413 }
7414 self.selection_history.mode = SelectionHistoryMode::Normal;
7415 }
7416
7417 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7418 self.end_selection(cx);
7419 self.selection_history.mode = SelectionHistoryMode::Redoing;
7420 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7421 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7422 self.select_next_state = entry.select_next_state;
7423 self.select_prev_state = entry.select_prev_state;
7424 self.add_selections_state = entry.add_selections_state;
7425 self.request_autoscroll(Autoscroll::newest(), cx);
7426 }
7427 self.selection_history.mode = SelectionHistoryMode::Normal;
7428 }
7429
7430 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7431 self.go_to_diagnostic_impl(Direction::Next, cx)
7432 }
7433
7434 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7435 self.go_to_diagnostic_impl(Direction::Prev, cx)
7436 }
7437
7438 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7439 let buffer = self.buffer.read(cx).snapshot(cx);
7440 let selection = self.selections.newest::<usize>(cx);
7441
7442 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7443 if direction == Direction::Next {
7444 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7445 let (group_id, jump_to) = popover.activation_info();
7446 if self.activate_diagnostics(group_id, cx) {
7447 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7448 let mut new_selection = s.newest_anchor().clone();
7449 new_selection.collapse_to(jump_to, SelectionGoal::None);
7450 s.select_anchors(vec![new_selection.clone()]);
7451 });
7452 }
7453 return;
7454 }
7455 }
7456
7457 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7458 active_diagnostics
7459 .primary_range
7460 .to_offset(&buffer)
7461 .to_inclusive()
7462 });
7463 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7464 if active_primary_range.contains(&selection.head()) {
7465 *active_primary_range.end()
7466 } else {
7467 selection.head()
7468 }
7469 } else {
7470 selection.head()
7471 };
7472
7473 loop {
7474 let mut diagnostics = if direction == Direction::Prev {
7475 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7476 } else {
7477 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7478 };
7479 let group = diagnostics.find_map(|entry| {
7480 if entry.diagnostic.is_primary
7481 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7482 && !entry.range.is_empty()
7483 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7484 && !entry.range.contains(&search_start)
7485 {
7486 Some((entry.range, entry.diagnostic.group_id))
7487 } else {
7488 None
7489 }
7490 });
7491
7492 if let Some((primary_range, group_id)) = group {
7493 if self.activate_diagnostics(group_id, cx) {
7494 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7495 s.select(vec![Selection {
7496 id: selection.id,
7497 start: primary_range.start,
7498 end: primary_range.start,
7499 reversed: false,
7500 goal: SelectionGoal::None,
7501 }]);
7502 });
7503 }
7504 break;
7505 } else {
7506 // Cycle around to the start of the buffer, potentially moving back to the start of
7507 // the currently active diagnostic.
7508 active_primary_range.take();
7509 if direction == Direction::Prev {
7510 if search_start == buffer.len() {
7511 break;
7512 } else {
7513 search_start = buffer.len();
7514 }
7515 } else if search_start == 0 {
7516 break;
7517 } else {
7518 search_start = 0;
7519 }
7520 }
7521 }
7522 }
7523
7524 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7525 let snapshot = self
7526 .display_map
7527 .update(cx, |display_map, cx| display_map.snapshot(cx));
7528 let selection = self.selections.newest::<Point>(cx);
7529
7530 if !self.seek_in_direction(
7531 &snapshot,
7532 selection.head(),
7533 false,
7534 snapshot
7535 .buffer_snapshot
7536 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7537 cx,
7538 ) {
7539 let wrapped_point = Point::zero();
7540 self.seek_in_direction(
7541 &snapshot,
7542 wrapped_point,
7543 true,
7544 snapshot
7545 .buffer_snapshot
7546 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7547 cx,
7548 );
7549 }
7550 }
7551
7552 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7553 let snapshot = self
7554 .display_map
7555 .update(cx, |display_map, cx| display_map.snapshot(cx));
7556 let selection = self.selections.newest::<Point>(cx);
7557
7558 if !self.seek_in_direction(
7559 &snapshot,
7560 selection.head(),
7561 false,
7562 snapshot
7563 .buffer_snapshot
7564 .git_diff_hunks_in_range_rev(0..selection.head().row),
7565 cx,
7566 ) {
7567 let wrapped_point = snapshot.buffer_snapshot.max_point();
7568 self.seek_in_direction(
7569 &snapshot,
7570 wrapped_point,
7571 true,
7572 snapshot
7573 .buffer_snapshot
7574 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7575 cx,
7576 );
7577 }
7578 }
7579
7580 fn seek_in_direction(
7581 &mut self,
7582 snapshot: &DisplaySnapshot,
7583 initial_point: Point,
7584 is_wrapped: bool,
7585 hunks: impl Iterator<Item = DiffHunk<u32>>,
7586 cx: &mut ViewContext<Editor>,
7587 ) -> bool {
7588 let display_point = initial_point.to_display_point(snapshot);
7589 let mut hunks = hunks
7590 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7591 .filter(|hunk| {
7592 if is_wrapped {
7593 true
7594 } else {
7595 !hunk.contains_display_row(display_point.row())
7596 }
7597 })
7598 .dedup();
7599
7600 if let Some(hunk) = hunks.next() {
7601 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7602 let row = hunk.start_display_row();
7603 let point = DisplayPoint::new(row, 0);
7604 s.select_display_ranges([point..point]);
7605 });
7606
7607 true
7608 } else {
7609 false
7610 }
7611 }
7612
7613 pub fn go_to_definition(
7614 &mut self,
7615 _: &GoToDefinition,
7616 cx: &mut ViewContext<Self>,
7617 ) -> Task<Result<bool>> {
7618 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
7619 }
7620
7621 pub fn go_to_implementation(
7622 &mut self,
7623 _: &GoToImplementation,
7624 cx: &mut ViewContext<Self>,
7625 ) -> Task<Result<bool>> {
7626 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
7627 }
7628
7629 pub fn go_to_implementation_split(
7630 &mut self,
7631 _: &GoToImplementationSplit,
7632 cx: &mut ViewContext<Self>,
7633 ) -> Task<Result<bool>> {
7634 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
7635 }
7636
7637 pub fn go_to_type_definition(
7638 &mut self,
7639 _: &GoToTypeDefinition,
7640 cx: &mut ViewContext<Self>,
7641 ) -> Task<Result<bool>> {
7642 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
7643 }
7644
7645 pub fn go_to_definition_split(
7646 &mut self,
7647 _: &GoToDefinitionSplit,
7648 cx: &mut ViewContext<Self>,
7649 ) -> Task<Result<bool>> {
7650 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
7651 }
7652
7653 pub fn go_to_type_definition_split(
7654 &mut self,
7655 _: &GoToTypeDefinitionSplit,
7656 cx: &mut ViewContext<Self>,
7657 ) -> Task<Result<bool>> {
7658 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
7659 }
7660
7661 fn go_to_definition_of_kind(
7662 &mut self,
7663 kind: GotoDefinitionKind,
7664 split: bool,
7665 cx: &mut ViewContext<Self>,
7666 ) -> Task<Result<bool>> {
7667 let Some(workspace) = self.workspace() else {
7668 return Task::ready(Ok(false));
7669 };
7670 let buffer = self.buffer.read(cx);
7671 let head = self.selections.newest::<usize>(cx).head();
7672 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7673 text_anchor
7674 } else {
7675 return Task::ready(Ok(false));
7676 };
7677
7678 let project = workspace.read(cx).project().clone();
7679 let definitions = project.update(cx, |project, cx| match kind {
7680 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7681 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7682 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7683 });
7684
7685 cx.spawn(|editor, mut cx| async move {
7686 let definitions = definitions.await?;
7687 let navigated = editor
7688 .update(&mut cx, |editor, cx| {
7689 editor.navigate_to_hover_links(
7690 Some(kind),
7691 definitions.into_iter().map(HoverLink::Text).collect(),
7692 split,
7693 cx,
7694 )
7695 })?
7696 .await?;
7697 anyhow::Ok(navigated)
7698 })
7699 }
7700
7701 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7702 let position = self.selections.newest_anchor().head();
7703 let Some((buffer, buffer_position)) =
7704 self.buffer.read(cx).text_anchor_for_position(position, cx)
7705 else {
7706 return;
7707 };
7708
7709 cx.spawn(|editor, mut cx| async move {
7710 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7711 editor.update(&mut cx, |_, cx| {
7712 cx.open_url(&url);
7713 })
7714 } else {
7715 Ok(())
7716 }
7717 })
7718 .detach();
7719 }
7720
7721 pub(crate) fn navigate_to_hover_links(
7722 &mut self,
7723 kind: Option<GotoDefinitionKind>,
7724 mut definitions: Vec<HoverLink>,
7725 split: bool,
7726 cx: &mut ViewContext<Editor>,
7727 ) -> Task<Result<bool>> {
7728 // If there is one definition, just open it directly
7729 if definitions.len() == 1 {
7730 let definition = definitions.pop().unwrap();
7731 let target_task = match definition {
7732 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7733 HoverLink::InlayHint(lsp_location, server_id) => {
7734 self.compute_target_location(lsp_location, server_id, cx)
7735 }
7736 HoverLink::Url(url) => {
7737 cx.open_url(&url);
7738 Task::ready(Ok(None))
7739 }
7740 };
7741 cx.spawn(|editor, mut cx| async move {
7742 let target = target_task.await.context("target resolution task")?;
7743 if let Some(target) = target {
7744 editor.update(&mut cx, |editor, cx| {
7745 let Some(workspace) = editor.workspace() else {
7746 return false;
7747 };
7748 let pane = workspace.read(cx).active_pane().clone();
7749
7750 let range = target.range.to_offset(target.buffer.read(cx));
7751 let range = editor.range_for_match(&range);
7752 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7753 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7754 s.select_ranges([range]);
7755 });
7756 } else {
7757 cx.window_context().defer(move |cx| {
7758 let target_editor: View<Self> =
7759 workspace.update(cx, |workspace, cx| {
7760 let pane = if split {
7761 workspace.adjacent_pane(cx)
7762 } else {
7763 workspace.active_pane().clone()
7764 };
7765
7766 workspace.open_project_item(pane, target.buffer.clone(), cx)
7767 });
7768 target_editor.update(cx, |target_editor, cx| {
7769 // When selecting a definition in a different buffer, disable the nav history
7770 // to avoid creating a history entry at the previous cursor location.
7771 pane.update(cx, |pane, _| pane.disable_history());
7772 target_editor.change_selections(
7773 Some(Autoscroll::fit()),
7774 cx,
7775 |s| {
7776 s.select_ranges([range]);
7777 },
7778 );
7779 pane.update(cx, |pane, _| pane.enable_history());
7780 });
7781 });
7782 }
7783 true
7784 })
7785 } else {
7786 Ok(false)
7787 }
7788 })
7789 } else if !definitions.is_empty() {
7790 let replica_id = self.replica_id(cx);
7791 cx.spawn(|editor, mut cx| async move {
7792 let (title, location_tasks, workspace) = editor
7793 .update(&mut cx, |editor, cx| {
7794 let tab_kind = match kind {
7795 Some(GotoDefinitionKind::Implementation) => "Implementations",
7796 _ => "Definitions",
7797 };
7798 let title = definitions
7799 .iter()
7800 .find_map(|definition| match definition {
7801 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7802 let buffer = origin.buffer.read(cx);
7803 format!(
7804 "{} for {}",
7805 tab_kind,
7806 buffer
7807 .text_for_range(origin.range.clone())
7808 .collect::<String>()
7809 )
7810 }),
7811 HoverLink::InlayHint(_, _) => None,
7812 HoverLink::Url(_) => None,
7813 })
7814 .unwrap_or(tab_kind.to_string());
7815 let location_tasks = definitions
7816 .into_iter()
7817 .map(|definition| match definition {
7818 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7819 HoverLink::InlayHint(lsp_location, server_id) => {
7820 editor.compute_target_location(lsp_location, server_id, cx)
7821 }
7822 HoverLink::Url(_) => Task::ready(Ok(None)),
7823 })
7824 .collect::<Vec<_>>();
7825 (title, location_tasks, editor.workspace().clone())
7826 })
7827 .context("location tasks preparation")?;
7828
7829 let locations = futures::future::join_all(location_tasks)
7830 .await
7831 .into_iter()
7832 .filter_map(|location| location.transpose())
7833 .collect::<Result<_>>()
7834 .context("location tasks")?;
7835
7836 let Some(workspace) = workspace else {
7837 return Ok(false);
7838 };
7839 let opened = workspace
7840 .update(&mut cx, |workspace, cx| {
7841 Self::open_locations_in_multibuffer(
7842 workspace, locations, replica_id, title, split, cx,
7843 )
7844 })
7845 .ok();
7846
7847 anyhow::Ok(opened.is_some())
7848 })
7849 } else {
7850 Task::ready(Ok(false))
7851 }
7852 }
7853
7854 fn compute_target_location(
7855 &self,
7856 lsp_location: lsp::Location,
7857 server_id: LanguageServerId,
7858 cx: &mut ViewContext<Editor>,
7859 ) -> Task<anyhow::Result<Option<Location>>> {
7860 let Some(project) = self.project.clone() else {
7861 return Task::Ready(Some(Ok(None)));
7862 };
7863
7864 cx.spawn(move |editor, mut cx| async move {
7865 let location_task = editor.update(&mut cx, |editor, cx| {
7866 project.update(cx, |project, cx| {
7867 let language_server_name =
7868 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7869 project
7870 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7871 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7872 });
7873 language_server_name.map(|language_server_name| {
7874 project.open_local_buffer_via_lsp(
7875 lsp_location.uri.clone(),
7876 server_id,
7877 language_server_name,
7878 cx,
7879 )
7880 })
7881 })
7882 })?;
7883 let location = match location_task {
7884 Some(task) => Some({
7885 let target_buffer_handle = task.await.context("open local buffer")?;
7886 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7887 let target_start = target_buffer
7888 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7889 let target_end = target_buffer
7890 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7891 target_buffer.anchor_after(target_start)
7892 ..target_buffer.anchor_before(target_end)
7893 })?;
7894 Location {
7895 buffer: target_buffer_handle,
7896 range,
7897 }
7898 }),
7899 None => None,
7900 };
7901 Ok(location)
7902 })
7903 }
7904
7905 pub fn find_all_references(
7906 &mut self,
7907 _: &FindAllReferences,
7908 cx: &mut ViewContext<Self>,
7909 ) -> Option<Task<Result<()>>> {
7910 let multi_buffer = self.buffer.read(cx);
7911 let selection = self.selections.newest::<usize>(cx);
7912 let head = selection.head();
7913
7914 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
7915 let head_anchor = multi_buffer_snapshot.anchor_at(
7916 head,
7917 if head < selection.tail() {
7918 Bias::Right
7919 } else {
7920 Bias::Left
7921 },
7922 );
7923 match self
7924 .find_all_references_task_sources
7925 .binary_search_by(|task_anchor| task_anchor.cmp(&head_anchor, &multi_buffer_snapshot))
7926 {
7927 Ok(_) => {
7928 log::info!(
7929 "Ignoring repeated FindAllReferences invocation with the position of already running task"
7930 );
7931 return None;
7932 }
7933 Err(i) => {
7934 self.find_all_references_task_sources.insert(i, head_anchor);
7935 }
7936 }
7937
7938 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
7939 let replica_id = self.replica_id(cx);
7940 let workspace = self.workspace()?;
7941 let project = workspace.read(cx).project().clone();
7942 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7943 let open_task = cx.spawn(|editor, mut cx| async move {
7944 let mut locations = references.await?;
7945 let snapshot = buffer.update(&mut cx, |buffer, _| buffer.snapshot())?;
7946 let head_offset = text::ToOffset::to_offset(&head, &snapshot);
7947
7948 // LSP may return references that contain the item itself we requested `find_all_references` for (eg. rust-analyzer)
7949 // So we will remove it from locations
7950 // If there is only one reference, we will not do this filter cause it may make locations empty
7951 if locations.len() > 1 {
7952 cx.update(|cx| {
7953 locations.retain(|location| {
7954 // fn foo(x : i64) {
7955 // ^
7956 // println!(x);
7957 // }
7958 // It is ok to find reference when caret being at ^ (the end of the word)
7959 // So we turn offset into inclusive to include the end of the word
7960 !location
7961 .range
7962 .to_offset(location.buffer.read(cx))
7963 .to_inclusive()
7964 .contains(&head_offset)
7965 });
7966 })?;
7967 }
7968
7969 if locations.is_empty() {
7970 return Ok(());
7971 }
7972
7973 // If there is one reference, just open it directly
7974 if locations.len() == 1 {
7975 let target = locations.pop().unwrap();
7976
7977 return editor.update(&mut cx, |editor, cx| {
7978 let range = target.range.to_offset(target.buffer.read(cx));
7979 let range = editor.range_for_match(&range);
7980
7981 if Some(&target.buffer) == editor.buffer().read(cx).as_singleton().as_ref() {
7982 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7983 s.select_ranges([range]);
7984 });
7985 } else {
7986 cx.window_context().defer(move |cx| {
7987 let target_editor: View<Self> =
7988 workspace.update(cx, |workspace, cx| {
7989 workspace.open_project_item(
7990 workspace.active_pane().clone(),
7991 target.buffer.clone(),
7992 cx,
7993 )
7994 });
7995 target_editor.update(cx, |target_editor, cx| {
7996 target_editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7997 s.select_ranges([range]);
7998 })
7999 })
8000 })
8001 }
8002 });
8003 }
8004
8005 workspace.update(&mut cx, |workspace, cx| {
8006 let title = locations
8007 .first()
8008 .as_ref()
8009 .map(|location| {
8010 let buffer = location.buffer.read(cx);
8011 format!(
8012 "References to `{}`",
8013 buffer
8014 .text_for_range(location.range.clone())
8015 .collect::<String>()
8016 )
8017 })
8018 .unwrap();
8019 Self::open_locations_in_multibuffer(
8020 workspace, locations, replica_id, title, false, cx,
8021 );
8022 })?;
8023
8024 Ok(())
8025 });
8026 Some(cx.spawn(|editor, mut cx| async move {
8027 open_task.await?;
8028 editor.update(&mut cx, |editor, _| {
8029 if let Ok(i) =
8030 editor
8031 .find_all_references_task_sources
8032 .binary_search_by(|task_anchor| {
8033 task_anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8034 })
8035 {
8036 editor.find_all_references_task_sources.remove(i);
8037 }
8038 })?;
8039 anyhow::Ok(())
8040 }))
8041 }
8042
8043 /// Opens a multibuffer with the given project locations in it
8044 pub fn open_locations_in_multibuffer(
8045 workspace: &mut Workspace,
8046 mut locations: Vec<Location>,
8047 replica_id: ReplicaId,
8048 title: String,
8049 split: bool,
8050 cx: &mut ViewContext<Workspace>,
8051 ) {
8052 // If there are multiple definitions, open them in a multibuffer
8053 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8054 let mut locations = locations.into_iter().peekable();
8055 let mut ranges_to_highlight = Vec::new();
8056 let capability = workspace.project().read(cx).capability();
8057
8058 let excerpt_buffer = cx.new_model(|cx| {
8059 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8060 while let Some(location) = locations.next() {
8061 let buffer = location.buffer.read(cx);
8062 let mut ranges_for_buffer = Vec::new();
8063 let range = location.range.to_offset(buffer);
8064 ranges_for_buffer.push(range.clone());
8065
8066 while let Some(next_location) = locations.peek() {
8067 if next_location.buffer == location.buffer {
8068 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8069 locations.next();
8070 } else {
8071 break;
8072 }
8073 }
8074
8075 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8076 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8077 location.buffer.clone(),
8078 ranges_for_buffer,
8079 1,
8080 cx,
8081 ))
8082 }
8083
8084 multibuffer.with_title(title)
8085 });
8086
8087 let editor = cx.new_view(|cx| {
8088 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8089 });
8090 editor.update(cx, |editor, cx| {
8091 editor.highlight_background::<Self>(
8092 ranges_to_highlight,
8093 |theme| theme.editor_highlighted_line_background,
8094 cx,
8095 );
8096 });
8097 if split {
8098 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
8099 } else {
8100 workspace.add_item_to_active_pane(Box::new(editor), cx);
8101 }
8102 }
8103
8104 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8105 use language::ToOffset as _;
8106
8107 let project = self.project.clone()?;
8108 let selection = self.selections.newest_anchor().clone();
8109 let (cursor_buffer, cursor_buffer_position) = self
8110 .buffer
8111 .read(cx)
8112 .text_anchor_for_position(selection.head(), cx)?;
8113 let (tail_buffer, _) = self
8114 .buffer
8115 .read(cx)
8116 .text_anchor_for_position(selection.tail(), cx)?;
8117 if tail_buffer != cursor_buffer {
8118 return None;
8119 }
8120
8121 let snapshot = cursor_buffer.read(cx).snapshot();
8122 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8123 let prepare_rename = project.update(cx, |project, cx| {
8124 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8125 });
8126 drop(snapshot);
8127
8128 Some(cx.spawn(|this, mut cx| async move {
8129 let rename_range = if let Some(range) = prepare_rename.await? {
8130 Some(range)
8131 } else {
8132 this.update(&mut cx, |this, cx| {
8133 let buffer = this.buffer.read(cx).snapshot(cx);
8134 let mut buffer_highlights = this
8135 .document_highlights_for_position(selection.head(), &buffer)
8136 .filter(|highlight| {
8137 highlight.start.excerpt_id == selection.head().excerpt_id
8138 && highlight.end.excerpt_id == selection.head().excerpt_id
8139 });
8140 buffer_highlights
8141 .next()
8142 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8143 })?
8144 };
8145 if let Some(rename_range) = rename_range {
8146 this.update(&mut cx, |this, cx| {
8147 let snapshot = cursor_buffer.read(cx).snapshot();
8148 let rename_buffer_range = rename_range.to_offset(&snapshot);
8149 let cursor_offset_in_rename_range =
8150 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8151
8152 this.take_rename(false, cx);
8153 let buffer = this.buffer.read(cx).read(cx);
8154 let cursor_offset = selection.head().to_offset(&buffer);
8155 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8156 let rename_end = rename_start + rename_buffer_range.len();
8157 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8158 let mut old_highlight_id = None;
8159 let old_name: Arc<str> = buffer
8160 .chunks(rename_start..rename_end, true)
8161 .map(|chunk| {
8162 if old_highlight_id.is_none() {
8163 old_highlight_id = chunk.syntax_highlight_id;
8164 }
8165 chunk.text
8166 })
8167 .collect::<String>()
8168 .into();
8169
8170 drop(buffer);
8171
8172 // Position the selection in the rename editor so that it matches the current selection.
8173 this.show_local_selections = false;
8174 let rename_editor = cx.new_view(|cx| {
8175 let mut editor = Editor::single_line(cx);
8176 editor.buffer.update(cx, |buffer, cx| {
8177 buffer.edit([(0..0, old_name.clone())], None, cx)
8178 });
8179 editor.select_all(&SelectAll, cx);
8180 editor
8181 });
8182
8183 let ranges = this
8184 .clear_background_highlights::<DocumentHighlightWrite>(cx)
8185 .into_iter()
8186 .flat_map(|(_, ranges)| ranges.into_iter())
8187 .chain(
8188 this.clear_background_highlights::<DocumentHighlightRead>(cx)
8189 .into_iter()
8190 .flat_map(|(_, ranges)| ranges.into_iter()),
8191 )
8192 .collect();
8193
8194 this.highlight_text::<Rename>(
8195 ranges,
8196 HighlightStyle {
8197 fade_out: Some(0.6),
8198 ..Default::default()
8199 },
8200 cx,
8201 );
8202 let rename_focus_handle = rename_editor.focus_handle(cx);
8203 cx.focus(&rename_focus_handle);
8204 let block_id = this.insert_blocks(
8205 [BlockProperties {
8206 style: BlockStyle::Flex,
8207 position: range.start,
8208 height: 1,
8209 render: Arc::new({
8210 let rename_editor = rename_editor.clone();
8211 move |cx: &mut BlockContext| {
8212 let mut text_style = cx.editor_style.text.clone();
8213 if let Some(highlight_style) = old_highlight_id
8214 .and_then(|h| h.style(&cx.editor_style.syntax))
8215 {
8216 text_style = text_style.highlight(highlight_style);
8217 }
8218 div()
8219 .pl(cx.anchor_x)
8220 .child(EditorElement::new(
8221 &rename_editor,
8222 EditorStyle {
8223 background: cx.theme().system().transparent,
8224 local_player: cx.editor_style.local_player,
8225 text: text_style,
8226 scrollbar_width: cx.editor_style.scrollbar_width,
8227 syntax: cx.editor_style.syntax.clone(),
8228 status: cx.editor_style.status.clone(),
8229 inlay_hints_style: HighlightStyle {
8230 color: Some(cx.theme().status().hint),
8231 font_weight: Some(FontWeight::BOLD),
8232 ..HighlightStyle::default()
8233 },
8234 suggestions_style: HighlightStyle {
8235 color: Some(cx.theme().status().predictive),
8236 ..HighlightStyle::default()
8237 },
8238 },
8239 ))
8240 .into_any_element()
8241 }
8242 }),
8243 disposition: BlockDisposition::Below,
8244 }],
8245 Some(Autoscroll::fit()),
8246 cx,
8247 )[0];
8248 this.pending_rename = Some(RenameState {
8249 range,
8250 old_name,
8251 editor: rename_editor,
8252 block_id,
8253 });
8254 })?;
8255 }
8256
8257 Ok(())
8258 }))
8259 }
8260
8261 pub fn confirm_rename(
8262 &mut self,
8263 _: &ConfirmRename,
8264 cx: &mut ViewContext<Self>,
8265 ) -> Option<Task<Result<()>>> {
8266 let rename = self.take_rename(false, cx)?;
8267 let workspace = self.workspace()?;
8268 let (start_buffer, start) = self
8269 .buffer
8270 .read(cx)
8271 .text_anchor_for_position(rename.range.start, cx)?;
8272 let (end_buffer, end) = self
8273 .buffer
8274 .read(cx)
8275 .text_anchor_for_position(rename.range.end, cx)?;
8276 if start_buffer != end_buffer {
8277 return None;
8278 }
8279
8280 let buffer = start_buffer;
8281 let range = start..end;
8282 let old_name = rename.old_name;
8283 let new_name = rename.editor.read(cx).text(cx);
8284
8285 let rename = workspace
8286 .read(cx)
8287 .project()
8288 .clone()
8289 .update(cx, |project, cx| {
8290 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8291 });
8292 let workspace = workspace.downgrade();
8293
8294 Some(cx.spawn(|editor, mut cx| async move {
8295 let project_transaction = rename.await?;
8296 Self::open_project_transaction(
8297 &editor,
8298 workspace,
8299 project_transaction,
8300 format!("Rename: {} → {}", old_name, new_name),
8301 cx.clone(),
8302 )
8303 .await?;
8304
8305 editor.update(&mut cx, |editor, cx| {
8306 editor.refresh_document_highlights(cx);
8307 })?;
8308 Ok(())
8309 }))
8310 }
8311
8312 fn take_rename(
8313 &mut self,
8314 moving_cursor: bool,
8315 cx: &mut ViewContext<Self>,
8316 ) -> Option<RenameState> {
8317 let rename = self.pending_rename.take()?;
8318 if rename.editor.focus_handle(cx).is_focused(cx) {
8319 cx.focus(&self.focus_handle);
8320 }
8321
8322 self.remove_blocks(
8323 [rename.block_id].into_iter().collect(),
8324 Some(Autoscroll::fit()),
8325 cx,
8326 );
8327 self.clear_highlights::<Rename>(cx);
8328 self.show_local_selections = true;
8329
8330 if moving_cursor {
8331 let rename_editor = rename.editor.read(cx);
8332 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8333
8334 // Update the selection to match the position of the selection inside
8335 // the rename editor.
8336 let snapshot = self.buffer.read(cx).read(cx);
8337 let rename_range = rename.range.to_offset(&snapshot);
8338 let cursor_in_editor = snapshot
8339 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8340 .min(rename_range.end);
8341 drop(snapshot);
8342
8343 self.change_selections(None, cx, |s| {
8344 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8345 });
8346 } else {
8347 self.refresh_document_highlights(cx);
8348 }
8349
8350 Some(rename)
8351 }
8352
8353 pub fn pending_rename(&self) -> Option<&RenameState> {
8354 self.pending_rename.as_ref()
8355 }
8356
8357 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8358 let project = match &self.project {
8359 Some(project) => project.clone(),
8360 None => return None,
8361 };
8362
8363 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8364 }
8365
8366 fn perform_format(
8367 &mut self,
8368 project: Model<Project>,
8369 trigger: FormatTrigger,
8370 cx: &mut ViewContext<Self>,
8371 ) -> Task<Result<()>> {
8372 let buffer = self.buffer().clone();
8373 let buffers = buffer.read(cx).all_buffers();
8374
8375 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8376 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8377
8378 cx.spawn(|_, mut cx| async move {
8379 let transaction = futures::select_biased! {
8380 _ = timeout => {
8381 log::warn!("timed out waiting for formatting");
8382 None
8383 }
8384 transaction = format.log_err().fuse() => transaction,
8385 };
8386
8387 buffer
8388 .update(&mut cx, |buffer, cx| {
8389 if let Some(transaction) = transaction {
8390 if !buffer.is_singleton() {
8391 buffer.push_transaction(&transaction.0, cx);
8392 }
8393 }
8394
8395 cx.notify();
8396 })
8397 .ok();
8398
8399 Ok(())
8400 })
8401 }
8402
8403 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8404 if let Some(project) = self.project.clone() {
8405 self.buffer.update(cx, |multi_buffer, cx| {
8406 project.update(cx, |project, cx| {
8407 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8408 });
8409 })
8410 }
8411 }
8412
8413 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8414 cx.show_character_palette();
8415 }
8416
8417 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8418 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8419 let buffer = self.buffer.read(cx).snapshot(cx);
8420 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8421 let is_valid = buffer
8422 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8423 .any(|entry| {
8424 entry.diagnostic.is_primary
8425 && !entry.range.is_empty()
8426 && entry.range.start == primary_range_start
8427 && entry.diagnostic.message == active_diagnostics.primary_message
8428 });
8429
8430 if is_valid != active_diagnostics.is_valid {
8431 active_diagnostics.is_valid = is_valid;
8432 let mut new_styles = HashMap::default();
8433 for (block_id, diagnostic) in &active_diagnostics.blocks {
8434 new_styles.insert(
8435 *block_id,
8436 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8437 );
8438 }
8439 self.display_map
8440 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8441 }
8442 }
8443 }
8444
8445 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8446 self.dismiss_diagnostics(cx);
8447 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8448 let buffer = self.buffer.read(cx).snapshot(cx);
8449
8450 let mut primary_range = None;
8451 let mut primary_message = None;
8452 let mut group_end = Point::zero();
8453 let diagnostic_group = buffer
8454 .diagnostic_group::<Point>(group_id)
8455 .map(|entry| {
8456 if entry.range.end > group_end {
8457 group_end = entry.range.end;
8458 }
8459 if entry.diagnostic.is_primary {
8460 primary_range = Some(entry.range.clone());
8461 primary_message = Some(entry.diagnostic.message.clone());
8462 }
8463 entry
8464 })
8465 .collect::<Vec<_>>();
8466 let primary_range = primary_range?;
8467 let primary_message = primary_message?;
8468 let primary_range =
8469 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8470
8471 let blocks = display_map
8472 .insert_blocks(
8473 diagnostic_group.iter().map(|entry| {
8474 let diagnostic = entry.diagnostic.clone();
8475 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8476 BlockProperties {
8477 style: BlockStyle::Fixed,
8478 position: buffer.anchor_after(entry.range.start),
8479 height: message_height,
8480 render: diagnostic_block_renderer(diagnostic, true),
8481 disposition: BlockDisposition::Below,
8482 }
8483 }),
8484 cx,
8485 )
8486 .into_iter()
8487 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8488 .collect();
8489
8490 Some(ActiveDiagnosticGroup {
8491 primary_range,
8492 primary_message,
8493 blocks,
8494 is_valid: true,
8495 })
8496 });
8497 self.active_diagnostics.is_some()
8498 }
8499
8500 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8501 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8502 self.display_map.update(cx, |display_map, cx| {
8503 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8504 });
8505 cx.notify();
8506 }
8507 }
8508
8509 pub fn set_selections_from_remote(
8510 &mut self,
8511 selections: Vec<Selection<Anchor>>,
8512 pending_selection: Option<Selection<Anchor>>,
8513 cx: &mut ViewContext<Self>,
8514 ) {
8515 let old_cursor_position = self.selections.newest_anchor().head();
8516 self.selections.change_with(cx, |s| {
8517 s.select_anchors(selections);
8518 if let Some(pending_selection) = pending_selection {
8519 s.set_pending(pending_selection, SelectMode::Character);
8520 } else {
8521 s.clear_pending();
8522 }
8523 });
8524 self.selections_did_change(false, &old_cursor_position, cx);
8525 }
8526
8527 fn push_to_selection_history(&mut self) {
8528 self.selection_history.push(SelectionHistoryEntry {
8529 selections: self.selections.disjoint_anchors(),
8530 select_next_state: self.select_next_state.clone(),
8531 select_prev_state: self.select_prev_state.clone(),
8532 add_selections_state: self.add_selections_state.clone(),
8533 });
8534 }
8535
8536 pub fn transact(
8537 &mut self,
8538 cx: &mut ViewContext<Self>,
8539 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8540 ) -> Option<TransactionId> {
8541 self.start_transaction_at(Instant::now(), cx);
8542 update(self, cx);
8543 self.end_transaction_at(Instant::now(), cx)
8544 }
8545
8546 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8547 self.end_selection(cx);
8548 if let Some(tx_id) = self
8549 .buffer
8550 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8551 {
8552 self.selection_history
8553 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8554 }
8555 }
8556
8557 fn end_transaction_at(
8558 &mut self,
8559 now: Instant,
8560 cx: &mut ViewContext<Self>,
8561 ) -> Option<TransactionId> {
8562 if let Some(tx_id) = self
8563 .buffer
8564 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8565 {
8566 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8567 *end_selections = Some(self.selections.disjoint_anchors());
8568 } else {
8569 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8570 }
8571
8572 cx.emit(EditorEvent::Edited);
8573 Some(tx_id)
8574 } else {
8575 None
8576 }
8577 }
8578
8579 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8580 let mut fold_ranges = Vec::new();
8581
8582 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8583
8584 let selections = self.selections.all_adjusted(cx);
8585 for selection in selections {
8586 let range = selection.range().sorted();
8587 let buffer_start_row = range.start.row;
8588
8589 for row in (0..=range.end.row).rev() {
8590 let fold_range = display_map.foldable_range(row);
8591
8592 if let Some(fold_range) = fold_range {
8593 if fold_range.end.row >= buffer_start_row {
8594 fold_ranges.push(fold_range);
8595 if row <= range.start.row {
8596 break;
8597 }
8598 }
8599 }
8600 }
8601 }
8602
8603 self.fold_ranges(fold_ranges, true, cx);
8604 }
8605
8606 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8607 let buffer_row = fold_at.buffer_row;
8608 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8609
8610 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8611 let autoscroll = self
8612 .selections
8613 .all::<Point>(cx)
8614 .iter()
8615 .any(|selection| fold_range.overlaps(&selection.range()));
8616
8617 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8618 }
8619 }
8620
8621 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8622 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8623 let buffer = &display_map.buffer_snapshot;
8624 let selections = self.selections.all::<Point>(cx);
8625 let ranges = selections
8626 .iter()
8627 .map(|s| {
8628 let range = s.display_range(&display_map).sorted();
8629 let mut start = range.start.to_point(&display_map);
8630 let mut end = range.end.to_point(&display_map);
8631 start.column = 0;
8632 end.column = buffer.line_len(end.row);
8633 start..end
8634 })
8635 .collect::<Vec<_>>();
8636
8637 self.unfold_ranges(ranges, true, true, cx);
8638 }
8639
8640 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8641 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8642
8643 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8644 ..Point::new(
8645 unfold_at.buffer_row,
8646 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8647 );
8648
8649 let autoscroll = self
8650 .selections
8651 .all::<Point>(cx)
8652 .iter()
8653 .any(|selection| selection.range().overlaps(&intersection_range));
8654
8655 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8656 }
8657
8658 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8659 let selections = self.selections.all::<Point>(cx);
8660 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8661 let line_mode = self.selections.line_mode;
8662 let ranges = selections.into_iter().map(|s| {
8663 if line_mode {
8664 let start = Point::new(s.start.row, 0);
8665 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8666 start..end
8667 } else {
8668 s.start..s.end
8669 }
8670 });
8671 self.fold_ranges(ranges, true, cx);
8672 }
8673
8674 pub fn fold_ranges<T: ToOffset + Clone>(
8675 &mut self,
8676 ranges: impl IntoIterator<Item = Range<T>>,
8677 auto_scroll: bool,
8678 cx: &mut ViewContext<Self>,
8679 ) {
8680 let mut ranges = ranges.into_iter().peekable();
8681 if ranges.peek().is_some() {
8682 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8683
8684 if auto_scroll {
8685 self.request_autoscroll(Autoscroll::fit(), cx);
8686 }
8687
8688 cx.notify();
8689 }
8690 }
8691
8692 pub fn unfold_ranges<T: ToOffset + Clone>(
8693 &mut self,
8694 ranges: impl IntoIterator<Item = Range<T>>,
8695 inclusive: bool,
8696 auto_scroll: bool,
8697 cx: &mut ViewContext<Self>,
8698 ) {
8699 let mut ranges = ranges.into_iter().peekable();
8700 if ranges.peek().is_some() {
8701 self.display_map
8702 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8703 if auto_scroll {
8704 self.request_autoscroll(Autoscroll::fit(), cx);
8705 }
8706
8707 cx.notify();
8708 }
8709 }
8710
8711 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8712 if hovered != self.gutter_hovered {
8713 self.gutter_hovered = hovered;
8714 cx.notify();
8715 }
8716 }
8717
8718 pub fn insert_blocks(
8719 &mut self,
8720 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8721 autoscroll: Option<Autoscroll>,
8722 cx: &mut ViewContext<Self>,
8723 ) -> Vec<BlockId> {
8724 let blocks = self
8725 .display_map
8726 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8727 if let Some(autoscroll) = autoscroll {
8728 self.request_autoscroll(autoscroll, cx);
8729 }
8730 blocks
8731 }
8732
8733 pub fn replace_blocks(
8734 &mut self,
8735 blocks: HashMap<BlockId, RenderBlock>,
8736 autoscroll: Option<Autoscroll>,
8737 cx: &mut ViewContext<Self>,
8738 ) {
8739 self.display_map
8740 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8741 if let Some(autoscroll) = autoscroll {
8742 self.request_autoscroll(autoscroll, cx);
8743 }
8744 }
8745
8746 pub fn remove_blocks(
8747 &mut self,
8748 block_ids: HashSet<BlockId>,
8749 autoscroll: Option<Autoscroll>,
8750 cx: &mut ViewContext<Self>,
8751 ) {
8752 self.display_map.update(cx, |display_map, cx| {
8753 display_map.remove_blocks(block_ids, cx)
8754 });
8755 if let Some(autoscroll) = autoscroll {
8756 self.request_autoscroll(autoscroll, cx);
8757 }
8758 }
8759
8760 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8761 self.display_map
8762 .update(cx, |map, cx| map.snapshot(cx))
8763 .longest_row()
8764 }
8765
8766 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8767 self.display_map
8768 .update(cx, |map, cx| map.snapshot(cx))
8769 .max_point()
8770 }
8771
8772 pub fn text(&self, cx: &AppContext) -> String {
8773 self.buffer.read(cx).read(cx).text()
8774 }
8775
8776 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8777 let text = self.text(cx);
8778 let text = text.trim();
8779
8780 if text.is_empty() {
8781 return None;
8782 }
8783
8784 Some(text.to_string())
8785 }
8786
8787 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8788 self.transact(cx, |this, cx| {
8789 this.buffer
8790 .read(cx)
8791 .as_singleton()
8792 .expect("you can only call set_text on editors for singleton buffers")
8793 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8794 });
8795 }
8796
8797 pub fn display_text(&self, cx: &mut AppContext) -> String {
8798 self.display_map
8799 .update(cx, |map, cx| map.snapshot(cx))
8800 .text()
8801 }
8802
8803 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8804 let mut wrap_guides = smallvec::smallvec![];
8805
8806 if self.show_wrap_guides == Some(false) {
8807 return wrap_guides;
8808 }
8809
8810 let settings = self.buffer.read(cx).settings_at(0, cx);
8811 if settings.show_wrap_guides {
8812 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8813 wrap_guides.push((soft_wrap as usize, true));
8814 }
8815 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8816 }
8817
8818 wrap_guides
8819 }
8820
8821 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8822 let settings = self.buffer.read(cx).settings_at(0, cx);
8823 let mode = self
8824 .soft_wrap_mode_override
8825 .unwrap_or_else(|| settings.soft_wrap);
8826 match mode {
8827 language_settings::SoftWrap::None => SoftWrap::None,
8828 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8829 language_settings::SoftWrap::PreferredLineLength => {
8830 SoftWrap::Column(settings.preferred_line_length)
8831 }
8832 }
8833 }
8834
8835 pub fn set_soft_wrap_mode(
8836 &mut self,
8837 mode: language_settings::SoftWrap,
8838 cx: &mut ViewContext<Self>,
8839 ) {
8840 self.soft_wrap_mode_override = Some(mode);
8841 cx.notify();
8842 }
8843
8844 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8845 let rem_size = cx.rem_size();
8846 self.display_map.update(cx, |map, cx| {
8847 map.set_font(
8848 style.text.font(),
8849 style.text.font_size.to_pixels(rem_size),
8850 cx,
8851 )
8852 });
8853 self.style = Some(style);
8854 }
8855
8856 #[cfg(any(test, feature = "test-support"))]
8857 pub fn style(&self) -> Option<&EditorStyle> {
8858 self.style.as_ref()
8859 }
8860
8861 // Called by the element. This method is not designed to be called outside of the editor
8862 // element's layout code because it does not notify when rewrapping is computed synchronously.
8863 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8864 self.display_map
8865 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8866 }
8867
8868 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8869 if self.soft_wrap_mode_override.is_some() {
8870 self.soft_wrap_mode_override.take();
8871 } else {
8872 let soft_wrap = match self.soft_wrap_mode(cx) {
8873 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8874 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8875 };
8876 self.soft_wrap_mode_override = Some(soft_wrap);
8877 }
8878 cx.notify();
8879 }
8880
8881 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
8882 let mut editor_settings = EditorSettings::get_global(cx).clone();
8883 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
8884 EditorSettings::override_global(editor_settings, cx);
8885 }
8886
8887 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8888 self.show_gutter = show_gutter;
8889 cx.notify();
8890 }
8891
8892 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8893 self.show_wrap_guides = Some(show_gutter);
8894 cx.notify();
8895 }
8896
8897 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8898 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8899 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8900 cx.reveal_path(&file.abs_path(cx));
8901 }
8902 }
8903 }
8904
8905 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8906 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8907 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8908 if let Some(path) = file.abs_path(cx).to_str() {
8909 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8910 }
8911 }
8912 }
8913 }
8914
8915 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8916 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8917 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8918 if let Some(path) = file.path().to_str() {
8919 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8920 }
8921 }
8922 }
8923 }
8924
8925 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8926 use git::permalink::{build_permalink, BuildPermalinkParams};
8927
8928 let (path, repo) = maybe!({
8929 let project_handle = self.project.as_ref()?.clone();
8930 let project = project_handle.read(cx);
8931 let buffer = self.buffer().read(cx).as_singleton()?;
8932 let path = buffer
8933 .read(cx)
8934 .file()?
8935 .as_local()?
8936 .path()
8937 .to_str()?
8938 .to_string();
8939 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
8940 Some((path, repo))
8941 })
8942 .ok_or_else(|| anyhow!("unable to open git repository"))?;
8943
8944 const REMOTE_NAME: &str = "origin";
8945 let origin_url = repo
8946 .lock()
8947 .remote_url(REMOTE_NAME)
8948 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8949 let sha = repo
8950 .lock()
8951 .head_sha()
8952 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8953 let selections = self.selections.all::<Point>(cx);
8954 let selection = selections.iter().peekable().next();
8955
8956 build_permalink(BuildPermalinkParams {
8957 remote_url: &origin_url,
8958 sha: &sha,
8959 path: &path,
8960 selection: selection.map(|selection| selection.range()),
8961 })
8962 }
8963
8964 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8965 let permalink = self.get_permalink_to_line(cx);
8966
8967 match permalink {
8968 Ok(permalink) => {
8969 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8970 }
8971 Err(err) => {
8972 let message = format!("Failed to copy permalink: {err}");
8973
8974 Err::<(), anyhow::Error>(err).log_err();
8975
8976 if let Some(workspace) = self.workspace() {
8977 workspace.update(cx, |workspace, cx| {
8978 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8979 })
8980 }
8981 }
8982 }
8983 }
8984
8985 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8986 let permalink = self.get_permalink_to_line(cx);
8987
8988 match permalink {
8989 Ok(permalink) => {
8990 cx.open_url(permalink.as_ref());
8991 }
8992 Err(err) => {
8993 let message = format!("Failed to open permalink: {err}");
8994
8995 Err::<(), anyhow::Error>(err).log_err();
8996
8997 if let Some(workspace) = self.workspace() {
8998 workspace.update(cx, |workspace, cx| {
8999 workspace.show_toast(Toast::new(0x45a8978, message), cx)
9000 })
9001 }
9002 }
9003 }
9004 }
9005
9006 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9007 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9008 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9009 pub fn highlight_rows<T: 'static>(
9010 &mut self,
9011 rows: Range<Anchor>,
9012 color: Option<Hsla>,
9013 cx: &mut ViewContext<Self>,
9014 ) {
9015 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9016 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9017 hash_map::Entry::Occupied(o) => {
9018 let row_highlights = o.into_mut();
9019 let existing_highlight_index =
9020 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9021 highlight_range
9022 .start
9023 .cmp(&rows.start, &multi_buffer_snapshot)
9024 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
9025 });
9026 match color {
9027 Some(color) => {
9028 let insert_index = match existing_highlight_index {
9029 Ok(i) => i,
9030 Err(i) => i,
9031 };
9032 row_highlights.insert(
9033 insert_index,
9034 (post_inc(&mut self.highlight_order), rows, color),
9035 );
9036 }
9037 None => {
9038 if let Ok(i) = existing_highlight_index {
9039 row_highlights.remove(i);
9040 }
9041 }
9042 }
9043 }
9044 hash_map::Entry::Vacant(v) => {
9045 if let Some(color) = color {
9046 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9047 }
9048 }
9049 }
9050 }
9051
9052 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9053 pub fn clear_row_highlights<T: 'static>(&mut self) {
9054 self.highlighted_rows.remove(&TypeId::of::<T>());
9055 }
9056
9057 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9058 pub fn highlighted_rows<T: 'static>(
9059 &self,
9060 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
9061 Some(
9062 self.highlighted_rows
9063 .get(&TypeId::of::<T>())?
9064 .iter()
9065 .map(|(_, range, color)| (range, color)),
9066 )
9067 }
9068
9069 // Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9070 // Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9071 pub fn highlighted_display_rows(&mut self, cx: &mut WindowContext) -> BTreeMap<u32, Hsla> {
9072 let snapshot = self.snapshot(cx);
9073 let mut used_highlight_orders = HashMap::default();
9074 self.highlighted_rows
9075 .iter()
9076 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9077 .fold(
9078 BTreeMap::<u32, Hsla>::new(),
9079 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9080 let start_row = anchor_range.start.to_display_point(&snapshot).row();
9081 let end_row = anchor_range.end.to_display_point(&snapshot).row();
9082 for row in start_row..=end_row {
9083 let used_index =
9084 used_highlight_orders.entry(row).or_insert(*highlight_order);
9085 if highlight_order >= used_index {
9086 *used_index = *highlight_order;
9087 unique_rows.insert(row, *hsla);
9088 }
9089 }
9090 unique_rows
9091 },
9092 )
9093 }
9094
9095 pub fn highlight_background<T: 'static>(
9096 &mut self,
9097 ranges: Vec<Range<Anchor>>,
9098 color_fetcher: fn(&ThemeColors) -> Hsla,
9099 cx: &mut ViewContext<Self>,
9100 ) {
9101 let snapshot = self.snapshot(cx);
9102 // this is to try and catch a panic sooner
9103 for range in &ranges {
9104 snapshot
9105 .buffer_snapshot
9106 .summary_for_anchor::<usize>(&range.start);
9107 snapshot
9108 .buffer_snapshot
9109 .summary_for_anchor::<usize>(&range.end);
9110 }
9111
9112 self.background_highlights
9113 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
9114 cx.notify();
9115 }
9116
9117 pub fn clear_background_highlights<T: 'static>(
9118 &mut self,
9119 _cx: &mut ViewContext<Self>,
9120 ) -> Option<BackgroundHighlight> {
9121 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
9122 text_highlights
9123 }
9124
9125 #[cfg(feature = "test-support")]
9126 pub fn all_text_background_highlights(
9127 &mut self,
9128 cx: &mut ViewContext<Self>,
9129 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9130 let snapshot = self.snapshot(cx);
9131 let buffer = &snapshot.buffer_snapshot;
9132 let start = buffer.anchor_before(0);
9133 let end = buffer.anchor_after(buffer.len());
9134 let theme = cx.theme().colors();
9135 self.background_highlights_in_range(start..end, &snapshot, theme)
9136 }
9137
9138 fn document_highlights_for_position<'a>(
9139 &'a self,
9140 position: Anchor,
9141 buffer: &'a MultiBufferSnapshot,
9142 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9143 let read_highlights = self
9144 .background_highlights
9145 .get(&TypeId::of::<DocumentHighlightRead>())
9146 .map(|h| &h.1);
9147 let write_highlights = self
9148 .background_highlights
9149 .get(&TypeId::of::<DocumentHighlightWrite>())
9150 .map(|h| &h.1);
9151 let left_position = position.bias_left(buffer);
9152 let right_position = position.bias_right(buffer);
9153 read_highlights
9154 .into_iter()
9155 .chain(write_highlights)
9156 .flat_map(move |ranges| {
9157 let start_ix = match ranges.binary_search_by(|probe| {
9158 let cmp = probe.end.cmp(&left_position, buffer);
9159 if cmp.is_ge() {
9160 Ordering::Greater
9161 } else {
9162 Ordering::Less
9163 }
9164 }) {
9165 Ok(i) | Err(i) => i,
9166 };
9167
9168 ranges[start_ix..]
9169 .iter()
9170 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9171 })
9172 }
9173
9174 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9175 self.background_highlights
9176 .get(&TypeId::of::<T>())
9177 .map_or(false, |(_, highlights)| !highlights.is_empty())
9178 }
9179
9180 pub fn background_highlights_in_range(
9181 &self,
9182 search_range: Range<Anchor>,
9183 display_snapshot: &DisplaySnapshot,
9184 theme: &ThemeColors,
9185 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9186 let mut results = Vec::new();
9187 for (color_fetcher, ranges) in self.background_highlights.values() {
9188 let color = color_fetcher(theme);
9189 let start_ix = match ranges.binary_search_by(|probe| {
9190 let cmp = probe
9191 .end
9192 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9193 if cmp.is_gt() {
9194 Ordering::Greater
9195 } else {
9196 Ordering::Less
9197 }
9198 }) {
9199 Ok(i) | Err(i) => i,
9200 };
9201 for range in &ranges[start_ix..] {
9202 if range
9203 .start
9204 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9205 .is_ge()
9206 {
9207 break;
9208 }
9209
9210 let start = range.start.to_display_point(&display_snapshot);
9211 let end = range.end.to_display_point(&display_snapshot);
9212 results.push((start..end, color))
9213 }
9214 }
9215 results
9216 }
9217
9218 pub fn background_highlight_row_ranges<T: 'static>(
9219 &self,
9220 search_range: Range<Anchor>,
9221 display_snapshot: &DisplaySnapshot,
9222 count: usize,
9223 ) -> Vec<RangeInclusive<DisplayPoint>> {
9224 let mut results = Vec::new();
9225 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9226 return vec![];
9227 };
9228
9229 let start_ix = match ranges.binary_search_by(|probe| {
9230 let cmp = probe
9231 .end
9232 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9233 if cmp.is_gt() {
9234 Ordering::Greater
9235 } else {
9236 Ordering::Less
9237 }
9238 }) {
9239 Ok(i) | Err(i) => i,
9240 };
9241 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9242 if let (Some(start_display), Some(end_display)) = (start, end) {
9243 results.push(
9244 start_display.to_display_point(display_snapshot)
9245 ..=end_display.to_display_point(display_snapshot),
9246 );
9247 }
9248 };
9249 let mut start_row: Option<Point> = None;
9250 let mut end_row: Option<Point> = None;
9251 if ranges.len() > count {
9252 return Vec::new();
9253 }
9254 for range in &ranges[start_ix..] {
9255 if range
9256 .start
9257 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9258 .is_ge()
9259 {
9260 break;
9261 }
9262 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9263 if let Some(current_row) = &end_row {
9264 if end.row == current_row.row {
9265 continue;
9266 }
9267 }
9268 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9269 if start_row.is_none() {
9270 assert_eq!(end_row, None);
9271 start_row = Some(start);
9272 end_row = Some(end);
9273 continue;
9274 }
9275 if let Some(current_end) = end_row.as_mut() {
9276 if start.row > current_end.row + 1 {
9277 push_region(start_row, end_row);
9278 start_row = Some(start);
9279 end_row = Some(end);
9280 } else {
9281 // Merge two hunks.
9282 *current_end = end;
9283 }
9284 } else {
9285 unreachable!();
9286 }
9287 }
9288 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9289 push_region(start_row, end_row);
9290 results
9291 }
9292
9293 /// Get the text ranges corresponding to the redaction query
9294 pub fn redacted_ranges(
9295 &self,
9296 search_range: Range<Anchor>,
9297 display_snapshot: &DisplaySnapshot,
9298 cx: &WindowContext,
9299 ) -> Vec<Range<DisplayPoint>> {
9300 display_snapshot
9301 .buffer_snapshot
9302 .redacted_ranges(search_range, |file| {
9303 if let Some(file) = file {
9304 file.is_private()
9305 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
9306 } else {
9307 false
9308 }
9309 })
9310 .map(|range| {
9311 range.start.to_display_point(display_snapshot)
9312 ..range.end.to_display_point(display_snapshot)
9313 })
9314 .collect()
9315 }
9316
9317 pub fn highlight_text<T: 'static>(
9318 &mut self,
9319 ranges: Vec<Range<Anchor>>,
9320 style: HighlightStyle,
9321 cx: &mut ViewContext<Self>,
9322 ) {
9323 self.display_map.update(cx, |map, _| {
9324 map.highlight_text(TypeId::of::<T>(), ranges, style)
9325 });
9326 cx.notify();
9327 }
9328
9329 pub(crate) fn highlight_inlays<T: 'static>(
9330 &mut self,
9331 highlights: Vec<InlayHighlight>,
9332 style: HighlightStyle,
9333 cx: &mut ViewContext<Self>,
9334 ) {
9335 self.display_map.update(cx, |map, _| {
9336 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9337 });
9338 cx.notify();
9339 }
9340
9341 pub fn text_highlights<'a, T: 'static>(
9342 &'a self,
9343 cx: &'a AppContext,
9344 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9345 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9346 }
9347
9348 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9349 let cleared = self
9350 .display_map
9351 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9352 if cleared {
9353 cx.notify();
9354 }
9355 }
9356
9357 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9358 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9359 && self.focus_handle.is_focused(cx)
9360 }
9361
9362 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9363 cx.notify();
9364 }
9365
9366 fn on_buffer_event(
9367 &mut self,
9368 multibuffer: Model<MultiBuffer>,
9369 event: &multi_buffer::Event,
9370 cx: &mut ViewContext<Self>,
9371 ) {
9372 match event {
9373 multi_buffer::Event::Edited {
9374 singleton_buffer_edited,
9375 } => {
9376 self.refresh_active_diagnostics(cx);
9377 self.refresh_code_actions(cx);
9378 if self.has_active_copilot_suggestion(cx) {
9379 self.update_visible_copilot_suggestion(cx);
9380 }
9381 cx.emit(EditorEvent::BufferEdited);
9382 cx.emit(SearchEvent::MatchesInvalidated);
9383
9384 if *singleton_buffer_edited {
9385 if let Some(project) = &self.project {
9386 let project = project.read(cx);
9387 let languages_affected = multibuffer
9388 .read(cx)
9389 .all_buffers()
9390 .into_iter()
9391 .filter_map(|buffer| {
9392 let buffer = buffer.read(cx);
9393 let language = buffer.language()?;
9394 if project.is_local()
9395 && project.language_servers_for_buffer(buffer, cx).count() == 0
9396 {
9397 None
9398 } else {
9399 Some(language)
9400 }
9401 })
9402 .cloned()
9403 .collect::<HashSet<_>>();
9404 if !languages_affected.is_empty() {
9405 self.refresh_inlay_hints(
9406 InlayHintRefreshReason::BufferEdited(languages_affected),
9407 cx,
9408 );
9409 }
9410 }
9411 }
9412
9413 let Some(project) = &self.project else { return };
9414 let telemetry = project.read(cx).client().telemetry().clone();
9415 telemetry.log_edit_event("editor");
9416 }
9417 multi_buffer::Event::ExcerptsAdded {
9418 buffer,
9419 predecessor,
9420 excerpts,
9421 } => {
9422 cx.emit(EditorEvent::ExcerptsAdded {
9423 buffer: buffer.clone(),
9424 predecessor: *predecessor,
9425 excerpts: excerpts.clone(),
9426 });
9427 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9428 }
9429 multi_buffer::Event::ExcerptsRemoved { ids } => {
9430 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9431 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9432 }
9433 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9434 multi_buffer::Event::LanguageChanged => {
9435 cx.emit(EditorEvent::Reparsed);
9436 cx.notify();
9437 }
9438 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9439 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9440 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9441 cx.emit(EditorEvent::TitleChanged)
9442 }
9443 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
9444 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9445 multi_buffer::Event::DiagnosticsUpdated => {
9446 self.refresh_active_diagnostics(cx);
9447 }
9448 _ => {}
9449 };
9450 }
9451
9452 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9453 cx.notify();
9454 }
9455
9456 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9457 self.refresh_copilot_suggestions(true, cx);
9458 self.refresh_inlay_hints(
9459 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9460 self.selections.newest_anchor().head(),
9461 &self.buffer.read(cx).snapshot(cx),
9462 cx,
9463 )),
9464 cx,
9465 );
9466 let editor_settings = EditorSettings::get_global(cx);
9467 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9468 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9469 cx.notify();
9470 }
9471
9472 pub fn set_searchable(&mut self, searchable: bool) {
9473 self.searchable = searchable;
9474 }
9475
9476 pub fn searchable(&self) -> bool {
9477 self.searchable
9478 }
9479
9480 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9481 self.open_excerpts_common(true, cx)
9482 }
9483
9484 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9485 self.open_excerpts_common(false, cx)
9486 }
9487
9488 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9489 let buffer = self.buffer.read(cx);
9490 if buffer.is_singleton() {
9491 cx.propagate();
9492 return;
9493 }
9494
9495 let Some(workspace) = self.workspace() else {
9496 cx.propagate();
9497 return;
9498 };
9499
9500 let mut new_selections_by_buffer = HashMap::default();
9501 for selection in self.selections.all::<usize>(cx) {
9502 for (buffer, mut range, _) in
9503 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9504 {
9505 if selection.reversed {
9506 mem::swap(&mut range.start, &mut range.end);
9507 }
9508 new_selections_by_buffer
9509 .entry(buffer)
9510 .or_insert(Vec::new())
9511 .push(range)
9512 }
9513 }
9514
9515 // We defer the pane interaction because we ourselves are a workspace item
9516 // and activating a new item causes the pane to call a method on us reentrantly,
9517 // which panics if we're on the stack.
9518 cx.window_context().defer(move |cx| {
9519 workspace.update(cx, |workspace, cx| {
9520 let pane = if split {
9521 workspace.adjacent_pane(cx)
9522 } else {
9523 workspace.active_pane().clone()
9524 };
9525 pane.update(cx, |pane, _| pane.disable_history());
9526
9527 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
9528 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9529 editor.update(cx, |editor, cx| {
9530 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9531 s.select_ranges(ranges);
9532 });
9533 });
9534 }
9535
9536 pane.update(cx, |pane, _| pane.enable_history());
9537 })
9538 });
9539 }
9540
9541 fn jump(
9542 &mut self,
9543 path: ProjectPath,
9544 position: Point,
9545 anchor: language::Anchor,
9546 cx: &mut ViewContext<Self>,
9547 ) {
9548 let workspace = self.workspace();
9549 cx.spawn(|_, mut cx| async move {
9550 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9551 let editor = workspace.update(&mut cx, |workspace, cx| {
9552 workspace.open_path(path, None, true, cx)
9553 })?;
9554 let editor = editor
9555 .await?
9556 .downcast::<Editor>()
9557 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9558 .downgrade();
9559 editor.update(&mut cx, |editor, cx| {
9560 let buffer = editor
9561 .buffer()
9562 .read(cx)
9563 .as_singleton()
9564 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9565 let buffer = buffer.read(cx);
9566 let cursor = if buffer.can_resolve(&anchor) {
9567 language::ToPoint::to_point(&anchor, buffer)
9568 } else {
9569 buffer.clip_point(position, Bias::Left)
9570 };
9571
9572 let nav_history = editor.nav_history.take();
9573 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9574 s.select_ranges([cursor..cursor]);
9575 });
9576 editor.nav_history = nav_history;
9577
9578 anyhow::Ok(())
9579 })??;
9580
9581 anyhow::Ok(())
9582 })
9583 .detach_and_log_err(cx);
9584 }
9585
9586 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9587 let snapshot = self.buffer.read(cx).read(cx);
9588 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9589 Some(
9590 ranges
9591 .iter()
9592 .map(move |range| {
9593 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9594 })
9595 .collect(),
9596 )
9597 }
9598
9599 fn selection_replacement_ranges(
9600 &self,
9601 range: Range<OffsetUtf16>,
9602 cx: &AppContext,
9603 ) -> Vec<Range<OffsetUtf16>> {
9604 let selections = self.selections.all::<OffsetUtf16>(cx);
9605 let newest_selection = selections
9606 .iter()
9607 .max_by_key(|selection| selection.id)
9608 .unwrap();
9609 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9610 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9611 let snapshot = self.buffer.read(cx).read(cx);
9612 selections
9613 .into_iter()
9614 .map(|mut selection| {
9615 selection.start.0 =
9616 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9617 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9618 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9619 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9620 })
9621 .collect()
9622 }
9623
9624 fn report_copilot_event(
9625 &self,
9626 suggestion_id: Option<String>,
9627 suggestion_accepted: bool,
9628 cx: &AppContext,
9629 ) {
9630 let Some(project) = &self.project else { return };
9631
9632 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
9633 let file_extension = self
9634 .buffer
9635 .read(cx)
9636 .as_singleton()
9637 .and_then(|b| b.read(cx).file())
9638 .and_then(|file| Path::new(file.file_name(cx)).extension())
9639 .and_then(|e| e.to_str())
9640 .map(|a| a.to_string());
9641
9642 let telemetry = project.read(cx).client().telemetry().clone();
9643
9644 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
9645 }
9646
9647 fn report_editor_event(
9648 &self,
9649 operation: &'static str,
9650 file_extension: Option<String>,
9651 cx: &AppContext,
9652 ) {
9653 if cfg!(any(test, feature = "test-support")) {
9654 return;
9655 }
9656
9657 let Some(project) = &self.project else { return };
9658
9659 // If None, we are in a file without an extension
9660 let file = self
9661 .buffer
9662 .read(cx)
9663 .as_singleton()
9664 .and_then(|b| b.read(cx).file());
9665 let file_extension = file_extension.or(file
9666 .as_ref()
9667 .and_then(|file| Path::new(file.file_name(cx)).extension())
9668 .and_then(|e| e.to_str())
9669 .map(|a| a.to_string()));
9670
9671 let vim_mode = cx
9672 .global::<SettingsStore>()
9673 .raw_user_settings()
9674 .get("vim_mode")
9675 == Some(&serde_json::Value::Bool(true));
9676 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9677 let copilot_enabled_for_language = self
9678 .buffer
9679 .read(cx)
9680 .settings_at(0, cx)
9681 .show_copilot_suggestions;
9682
9683 let telemetry = project.read(cx).client().telemetry().clone();
9684 telemetry.report_editor_event(
9685 file_extension,
9686 vim_mode,
9687 operation,
9688 copilot_enabled,
9689 copilot_enabled_for_language,
9690 )
9691 }
9692
9693 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9694 /// with each line being an array of {text, highlight} objects.
9695 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9696 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9697 return;
9698 };
9699
9700 #[derive(Serialize)]
9701 struct Chunk<'a> {
9702 text: String,
9703 highlight: Option<&'a str>,
9704 }
9705
9706 let snapshot = buffer.read(cx).snapshot();
9707 let range = self
9708 .selected_text_range(cx)
9709 .and_then(|selected_range| {
9710 if selected_range.is_empty() {
9711 None
9712 } else {
9713 Some(selected_range)
9714 }
9715 })
9716 .unwrap_or_else(|| 0..snapshot.len());
9717
9718 let chunks = snapshot.chunks(range, true);
9719 let mut lines = Vec::new();
9720 let mut line: VecDeque<Chunk> = VecDeque::new();
9721
9722 let Some(style) = self.style.as_ref() else {
9723 return;
9724 };
9725
9726 for chunk in chunks {
9727 let highlight = chunk
9728 .syntax_highlight_id
9729 .and_then(|id| id.name(&style.syntax));
9730 let mut chunk_lines = chunk.text.split('\n').peekable();
9731 while let Some(text) = chunk_lines.next() {
9732 let mut merged_with_last_token = false;
9733 if let Some(last_token) = line.back_mut() {
9734 if last_token.highlight == highlight {
9735 last_token.text.push_str(text);
9736 merged_with_last_token = true;
9737 }
9738 }
9739
9740 if !merged_with_last_token {
9741 line.push_back(Chunk {
9742 text: text.into(),
9743 highlight,
9744 });
9745 }
9746
9747 if chunk_lines.peek().is_some() {
9748 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9749 line.pop_front();
9750 }
9751 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9752 line.pop_back();
9753 }
9754
9755 lines.push(mem::take(&mut line));
9756 }
9757 }
9758 }
9759
9760 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9761 return;
9762 };
9763 cx.write_to_clipboard(ClipboardItem::new(lines));
9764 }
9765
9766 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9767 &self.inlay_hint_cache
9768 }
9769
9770 pub fn replay_insert_event(
9771 &mut self,
9772 text: &str,
9773 relative_utf16_range: Option<Range<isize>>,
9774 cx: &mut ViewContext<Self>,
9775 ) {
9776 if !self.input_enabled {
9777 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9778 return;
9779 }
9780 if let Some(relative_utf16_range) = relative_utf16_range {
9781 let selections = self.selections.all::<OffsetUtf16>(cx);
9782 self.change_selections(None, cx, |s| {
9783 let new_ranges = selections.into_iter().map(|range| {
9784 let start = OffsetUtf16(
9785 range
9786 .head()
9787 .0
9788 .saturating_add_signed(relative_utf16_range.start),
9789 );
9790 let end = OffsetUtf16(
9791 range
9792 .head()
9793 .0
9794 .saturating_add_signed(relative_utf16_range.end),
9795 );
9796 start..end
9797 });
9798 s.select_ranges(new_ranges);
9799 });
9800 }
9801
9802 self.handle_input(text, cx);
9803 }
9804
9805 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9806 let Some(project) = self.project.as_ref() else {
9807 return false;
9808 };
9809 let project = project.read(cx);
9810
9811 let mut supports = false;
9812 self.buffer().read(cx).for_each_buffer(|buffer| {
9813 if !supports {
9814 supports = project
9815 .language_servers_for_buffer(buffer.read(cx), cx)
9816 .any(
9817 |(_, server)| match server.capabilities().inlay_hint_provider {
9818 Some(lsp::OneOf::Left(enabled)) => enabled,
9819 Some(lsp::OneOf::Right(_)) => true,
9820 None => false,
9821 },
9822 )
9823 }
9824 });
9825 supports
9826 }
9827
9828 pub fn focus(&self, cx: &mut WindowContext) {
9829 cx.focus(&self.focus_handle)
9830 }
9831
9832 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9833 self.focus_handle.is_focused(cx)
9834 }
9835
9836 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9837 cx.emit(EditorEvent::Focused);
9838
9839 if let Some(rename) = self.pending_rename.as_ref() {
9840 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9841 cx.focus(&rename_editor_focus_handle);
9842 } else {
9843 self.blink_manager.update(cx, BlinkManager::enable);
9844 self.show_cursor_names(cx);
9845 self.buffer.update(cx, |buffer, cx| {
9846 buffer.finalize_last_transaction(cx);
9847 if self.leader_peer_id.is_none() {
9848 buffer.set_active_selections(
9849 &self.selections.disjoint_anchors(),
9850 self.selections.line_mode,
9851 self.cursor_shape,
9852 cx,
9853 );
9854 }
9855 });
9856 }
9857 }
9858
9859 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9860 self.blink_manager.update(cx, BlinkManager::disable);
9861 self.buffer
9862 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9863 self.hide_context_menu(cx);
9864 hide_hover(self, cx);
9865 cx.emit(EditorEvent::Blurred);
9866 cx.notify();
9867 }
9868
9869 pub fn register_action<A: Action>(
9870 &mut self,
9871 listener: impl Fn(&A, &mut WindowContext) + 'static,
9872 ) -> &mut Self {
9873 let listener = Arc::new(listener);
9874
9875 self.editor_actions.push(Box::new(move |cx| {
9876 let _view = cx.view().clone();
9877 let cx = cx.window_context();
9878 let listener = listener.clone();
9879 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9880 let action = action.downcast_ref().unwrap();
9881 if phase == DispatchPhase::Bubble {
9882 listener(action, cx)
9883 }
9884 })
9885 }));
9886 self
9887 }
9888}
9889
9890pub trait CollaborationHub {
9891 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9892 fn user_participant_indices<'a>(
9893 &self,
9894 cx: &'a AppContext,
9895 ) -> &'a HashMap<u64, ParticipantIndex>;
9896 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9897}
9898
9899impl CollaborationHub for Model<Project> {
9900 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9901 self.read(cx).collaborators()
9902 }
9903
9904 fn user_participant_indices<'a>(
9905 &self,
9906 cx: &'a AppContext,
9907 ) -> &'a HashMap<u64, ParticipantIndex> {
9908 self.read(cx).user_store().read(cx).participant_indices()
9909 }
9910
9911 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9912 let this = self.read(cx);
9913 let user_ids = this.collaborators().values().map(|c| c.user_id);
9914 this.user_store().read_with(cx, |user_store, cx| {
9915 user_store.participant_names(user_ids, cx)
9916 })
9917 }
9918}
9919
9920pub trait CompletionProvider {
9921 fn completions(
9922 &self,
9923 buffer: &Model<Buffer>,
9924 buffer_position: text::Anchor,
9925 cx: &mut ViewContext<Editor>,
9926 ) -> Task<Result<Vec<Completion>>>;
9927
9928 fn resolve_completions(
9929 &self,
9930 completion_indices: Vec<usize>,
9931 completions: Arc<RwLock<Box<[Completion]>>>,
9932 cx: &mut ViewContext<Editor>,
9933 ) -> Task<Result<bool>>;
9934
9935 fn apply_additional_edits_for_completion(
9936 &self,
9937 buffer: Model<Buffer>,
9938 completion: Completion,
9939 push_to_history: bool,
9940 cx: &mut ViewContext<Editor>,
9941 ) -> Task<Result<Option<language::Transaction>>>;
9942}
9943
9944impl CompletionProvider for Model<Project> {
9945 fn completions(
9946 &self,
9947 buffer: &Model<Buffer>,
9948 buffer_position: text::Anchor,
9949 cx: &mut ViewContext<Editor>,
9950 ) -> Task<Result<Vec<Completion>>> {
9951 self.update(cx, |project, cx| {
9952 project.completions(&buffer, buffer_position, cx)
9953 })
9954 }
9955
9956 fn resolve_completions(
9957 &self,
9958 completion_indices: Vec<usize>,
9959 completions: Arc<RwLock<Box<[Completion]>>>,
9960 cx: &mut ViewContext<Editor>,
9961 ) -> Task<Result<bool>> {
9962 self.update(cx, |project, cx| {
9963 project.resolve_completions(completion_indices, completions, cx)
9964 })
9965 }
9966
9967 fn apply_additional_edits_for_completion(
9968 &self,
9969 buffer: Model<Buffer>,
9970 completion: Completion,
9971 push_to_history: bool,
9972 cx: &mut ViewContext<Editor>,
9973 ) -> Task<Result<Option<language::Transaction>>> {
9974 self.update(cx, |project, cx| {
9975 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9976 })
9977 }
9978}
9979
9980fn inlay_hint_settings(
9981 location: Anchor,
9982 snapshot: &MultiBufferSnapshot,
9983 cx: &mut ViewContext<'_, Editor>,
9984) -> InlayHintSettings {
9985 let file = snapshot.file_at(location);
9986 let language = snapshot.language_at(location);
9987 let settings = all_language_settings(file, cx);
9988 settings
9989 .language(language.map(|l| l.name()).as_deref())
9990 .inlay_hints
9991}
9992
9993fn consume_contiguous_rows(
9994 contiguous_row_selections: &mut Vec<Selection<Point>>,
9995 selection: &Selection<Point>,
9996 display_map: &DisplaySnapshot,
9997 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9998) -> (u32, u32) {
9999 contiguous_row_selections.push(selection.clone());
10000 let start_row = selection.start.row;
10001 let mut end_row = ending_row(selection, display_map);
10002
10003 while let Some(next_selection) = selections.peek() {
10004 if next_selection.start.row <= end_row {
10005 end_row = ending_row(next_selection, display_map);
10006 contiguous_row_selections.push(selections.next().unwrap().clone());
10007 } else {
10008 break;
10009 }
10010 }
10011 (start_row, end_row)
10012}
10013
10014fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
10015 if next_selection.end.column > 0 || next_selection.is_empty() {
10016 display_map.next_line_boundary(next_selection.end).0.row + 1
10017 } else {
10018 next_selection.end.row
10019 }
10020}
10021
10022impl EditorSnapshot {
10023 pub fn remote_selections_in_range<'a>(
10024 &'a self,
10025 range: &'a Range<Anchor>,
10026 collaboration_hub: &dyn CollaborationHub,
10027 cx: &'a AppContext,
10028 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10029 let participant_names = collaboration_hub.user_names(cx);
10030 let participant_indices = collaboration_hub.user_participant_indices(cx);
10031 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10032 let collaborators_by_replica_id = collaborators_by_peer_id
10033 .iter()
10034 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10035 .collect::<HashMap<_, _>>();
10036 self.buffer_snapshot
10037 .remote_selections_in_range(range)
10038 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10039 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10040 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10041 let user_name = participant_names.get(&collaborator.user_id).cloned();
10042 Some(RemoteSelection {
10043 replica_id,
10044 selection,
10045 cursor_shape,
10046 line_mode,
10047 participant_index,
10048 peer_id: collaborator.peer_id,
10049 user_name,
10050 })
10051 })
10052 }
10053
10054 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10055 self.display_snapshot.buffer_snapshot.language_at(position)
10056 }
10057
10058 pub fn is_focused(&self) -> bool {
10059 self.is_focused
10060 }
10061
10062 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10063 self.placeholder_text.as_ref()
10064 }
10065
10066 pub fn scroll_position(&self) -> gpui::Point<f32> {
10067 self.scroll_anchor.scroll_position(&self.display_snapshot)
10068 }
10069
10070 pub fn gutter_dimensions(
10071 &self,
10072 font_id: FontId,
10073 font_size: Pixels,
10074 em_width: Pixels,
10075 max_line_number_width: Pixels,
10076 cx: &AppContext,
10077 ) -> GutterDimensions {
10078 if !self.show_gutter {
10079 return GutterDimensions::default();
10080 }
10081 let descent = cx.text_system().descent(font_id, font_size);
10082
10083 let show_git_gutter = matches!(
10084 ProjectSettings::get_global(cx).git.git_gutter,
10085 Some(GitGutterSetting::TrackedFiles)
10086 );
10087 let gutter_settings = EditorSettings::get_global(cx).gutter;
10088
10089 let line_gutter_width = if gutter_settings.line_numbers {
10090 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10091 let min_width_for_number_on_gutter = em_width * 4.0;
10092 max_line_number_width.max(min_width_for_number_on_gutter)
10093 } else {
10094 0.0.into()
10095 };
10096
10097 let left_padding = if gutter_settings.code_actions {
10098 em_width * 3.0
10099 } else if show_git_gutter && gutter_settings.line_numbers {
10100 em_width * 2.0
10101 } else if show_git_gutter || gutter_settings.line_numbers {
10102 em_width
10103 } else {
10104 px(0.)
10105 };
10106
10107 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
10108 em_width * 4.0
10109 } else if gutter_settings.folds {
10110 em_width * 3.0
10111 } else if gutter_settings.line_numbers {
10112 em_width
10113 } else {
10114 px(0.)
10115 };
10116
10117 GutterDimensions {
10118 left_padding,
10119 right_padding,
10120 width: line_gutter_width + left_padding + right_padding,
10121 margin: -descent,
10122 }
10123 }
10124}
10125
10126impl Deref for EditorSnapshot {
10127 type Target = DisplaySnapshot;
10128
10129 fn deref(&self) -> &Self::Target {
10130 &self.display_snapshot
10131 }
10132}
10133
10134#[derive(Clone, Debug, PartialEq, Eq)]
10135pub enum EditorEvent {
10136 InputIgnored {
10137 text: Arc<str>,
10138 },
10139 InputHandled {
10140 utf16_range_to_replace: Option<Range<isize>>,
10141 text: Arc<str>,
10142 },
10143 ExcerptsAdded {
10144 buffer: Model<Buffer>,
10145 predecessor: ExcerptId,
10146 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10147 },
10148 ExcerptsRemoved {
10149 ids: Vec<ExcerptId>,
10150 },
10151 BufferEdited,
10152 Edited,
10153 Reparsed,
10154 Focused,
10155 Blurred,
10156 DirtyChanged,
10157 Saved,
10158 TitleChanged,
10159 DiffBaseChanged,
10160 SelectionsChanged {
10161 local: bool,
10162 },
10163 ScrollPositionChanged {
10164 local: bool,
10165 autoscroll: bool,
10166 },
10167 Closed,
10168}
10169
10170impl EventEmitter<EditorEvent> for Editor {}
10171
10172impl FocusableView for Editor {
10173 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10174 self.focus_handle.clone()
10175 }
10176}
10177
10178impl Render for Editor {
10179 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10180 let settings = ThemeSettings::get_global(cx);
10181 let text_style = match self.mode {
10182 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10183 color: cx.theme().colors().editor_foreground,
10184 font_family: settings.ui_font.family.clone(),
10185 font_features: settings.ui_font.features,
10186 font_size: rems(0.875).into(),
10187 font_weight: FontWeight::NORMAL,
10188 font_style: FontStyle::Normal,
10189 line_height: relative(settings.buffer_line_height.value()),
10190 background_color: None,
10191 underline: None,
10192 strikethrough: None,
10193 white_space: WhiteSpace::Normal,
10194 },
10195
10196 EditorMode::Full => TextStyle {
10197 color: cx.theme().colors().editor_foreground,
10198 font_family: settings.buffer_font.family.clone(),
10199 font_features: settings.buffer_font.features,
10200 font_size: settings.buffer_font_size(cx).into(),
10201 font_weight: FontWeight::NORMAL,
10202 font_style: FontStyle::Normal,
10203 line_height: relative(settings.buffer_line_height.value()),
10204 background_color: None,
10205 underline: None,
10206 strikethrough: None,
10207 white_space: WhiteSpace::Normal,
10208 },
10209 };
10210
10211 let background = match self.mode {
10212 EditorMode::SingleLine => cx.theme().system().transparent,
10213 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10214 EditorMode::Full => cx.theme().colors().editor_background,
10215 };
10216
10217 EditorElement::new(
10218 cx.view(),
10219 EditorStyle {
10220 background,
10221 local_player: cx.theme().players().local(),
10222 text: text_style,
10223 scrollbar_width: px(12.),
10224 syntax: cx.theme().syntax().clone(),
10225 status: cx.theme().status().clone(),
10226 inlay_hints_style: HighlightStyle {
10227 color: Some(cx.theme().status().hint),
10228 ..HighlightStyle::default()
10229 },
10230 suggestions_style: HighlightStyle {
10231 color: Some(cx.theme().status().predictive),
10232 ..HighlightStyle::default()
10233 },
10234 },
10235 )
10236 }
10237}
10238
10239impl ViewInputHandler for Editor {
10240 fn text_for_range(
10241 &mut self,
10242 range_utf16: Range<usize>,
10243 cx: &mut ViewContext<Self>,
10244 ) -> Option<String> {
10245 Some(
10246 self.buffer
10247 .read(cx)
10248 .read(cx)
10249 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
10250 .collect(),
10251 )
10252 }
10253
10254 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10255 // Prevent the IME menu from appearing when holding down an alphabetic key
10256 // while input is disabled.
10257 if !self.input_enabled {
10258 return None;
10259 }
10260
10261 let range = self.selections.newest::<OffsetUtf16>(cx).range();
10262 Some(range.start.0..range.end.0)
10263 }
10264
10265 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10266 let snapshot = self.buffer.read(cx).read(cx);
10267 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
10268 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
10269 }
10270
10271 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
10272 self.clear_highlights::<InputComposition>(cx);
10273 self.ime_transaction.take();
10274 }
10275
10276 fn replace_text_in_range(
10277 &mut self,
10278 range_utf16: Option<Range<usize>>,
10279 text: &str,
10280 cx: &mut ViewContext<Self>,
10281 ) {
10282 if !self.input_enabled {
10283 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10284 return;
10285 }
10286
10287 self.transact(cx, |this, cx| {
10288 let new_selected_ranges = 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 this.marked_text_ranges(cx)
10293 };
10294
10295 let range_to_replace = new_selected_ranges.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(new_selected_ranges) = new_selected_ranges {
10319 this.change_selections(None, cx, |selections| {
10320 selections.select_ranges(new_selected_ranges)
10321 });
10322 this.backspace(&Default::default(), cx);
10323 }
10324
10325 this.handle_input(text, cx);
10326 });
10327
10328 if let Some(transaction) = self.ime_transaction {
10329 self.buffer.update(cx, |buffer, cx| {
10330 buffer.group_until_transaction(transaction, cx);
10331 });
10332 }
10333
10334 self.unmark_text(cx);
10335 }
10336
10337 fn replace_and_mark_text_in_range(
10338 &mut self,
10339 range_utf16: Option<Range<usize>>,
10340 text: &str,
10341 new_selected_range_utf16: Option<Range<usize>>,
10342 cx: &mut ViewContext<Self>,
10343 ) {
10344 if !self.input_enabled {
10345 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10346 return;
10347 }
10348
10349 let transaction = self.transact(cx, |this, cx| {
10350 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10351 let snapshot = this.buffer.read(cx).read(cx);
10352 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10353 for marked_range in &mut marked_ranges {
10354 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10355 marked_range.start.0 += relative_range_utf16.start;
10356 marked_range.start =
10357 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10358 marked_range.end =
10359 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10360 }
10361 }
10362 Some(marked_ranges)
10363 } else if let Some(range_utf16) = range_utf16 {
10364 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10365 Some(this.selection_replacement_ranges(range_utf16, cx))
10366 } else {
10367 None
10368 };
10369
10370 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10371 let newest_selection_id = this.selections.newest_anchor().id;
10372 this.selections
10373 .all::<OffsetUtf16>(cx)
10374 .iter()
10375 .zip(ranges_to_replace.iter())
10376 .find_map(|(selection, range)| {
10377 if selection.id == newest_selection_id {
10378 Some(
10379 (range.start.0 as isize - selection.head().0 as isize)
10380 ..(range.end.0 as isize - selection.head().0 as isize),
10381 )
10382 } else {
10383 None
10384 }
10385 })
10386 });
10387
10388 cx.emit(EditorEvent::InputHandled {
10389 utf16_range_to_replace: range_to_replace,
10390 text: text.into(),
10391 });
10392
10393 if let Some(ranges) = ranges_to_replace {
10394 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10395 }
10396
10397 let marked_ranges = {
10398 let snapshot = this.buffer.read(cx).read(cx);
10399 this.selections
10400 .disjoint_anchors()
10401 .iter()
10402 .map(|selection| {
10403 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10404 })
10405 .collect::<Vec<_>>()
10406 };
10407
10408 if text.is_empty() {
10409 this.unmark_text(cx);
10410 } else {
10411 this.highlight_text::<InputComposition>(
10412 marked_ranges.clone(),
10413 HighlightStyle {
10414 underline: Some(UnderlineStyle {
10415 thickness: px(1.),
10416 color: None,
10417 wavy: false,
10418 }),
10419 ..Default::default()
10420 },
10421 cx,
10422 );
10423 }
10424
10425 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10426 let use_autoclose = this.use_autoclose;
10427 this.set_use_autoclose(false);
10428 this.handle_input(text, cx);
10429 this.set_use_autoclose(use_autoclose);
10430
10431 if let Some(new_selected_range) = new_selected_range_utf16 {
10432 let snapshot = this.buffer.read(cx).read(cx);
10433 let new_selected_ranges = marked_ranges
10434 .into_iter()
10435 .map(|marked_range| {
10436 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10437 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10438 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10439 snapshot.clip_offset_utf16(new_start, Bias::Left)
10440 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10441 })
10442 .collect::<Vec<_>>();
10443
10444 drop(snapshot);
10445 this.change_selections(None, cx, |selections| {
10446 selections.select_ranges(new_selected_ranges)
10447 });
10448 }
10449 });
10450
10451 self.ime_transaction = self.ime_transaction.or(transaction);
10452 if let Some(transaction) = self.ime_transaction {
10453 self.buffer.update(cx, |buffer, cx| {
10454 buffer.group_until_transaction(transaction, cx);
10455 });
10456 }
10457
10458 if self.text_highlights::<InputComposition>(cx).is_none() {
10459 self.ime_transaction.take();
10460 }
10461 }
10462
10463 fn bounds_for_range(
10464 &mut self,
10465 range_utf16: Range<usize>,
10466 element_bounds: gpui::Bounds<Pixels>,
10467 cx: &mut ViewContext<Self>,
10468 ) -> Option<gpui::Bounds<Pixels>> {
10469 let text_layout_details = self.text_layout_details(cx);
10470 let style = &text_layout_details.editor_style;
10471 let font_id = cx.text_system().resolve_font(&style.text.font());
10472 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10473 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10474 let em_width = cx
10475 .text_system()
10476 .typographic_bounds(font_id, font_size, 'm')
10477 .unwrap()
10478 .size
10479 .width;
10480
10481 let snapshot = self.snapshot(cx);
10482 let scroll_position = snapshot.scroll_position();
10483 let scroll_left = scroll_position.x * em_width;
10484
10485 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10486 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10487 + self.gutter_width;
10488 let y = line_height * (start.row() as f32 - scroll_position.y);
10489
10490 Some(Bounds {
10491 origin: element_bounds.origin + point(x, y),
10492 size: size(em_width, line_height),
10493 })
10494 }
10495}
10496
10497trait SelectionExt {
10498 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10499 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10500 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10501 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10502 -> Range<u32>;
10503}
10504
10505impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10506 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10507 let start = self.start.to_point(buffer);
10508 let end = self.end.to_point(buffer);
10509 if self.reversed {
10510 end..start
10511 } else {
10512 start..end
10513 }
10514 }
10515
10516 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10517 let start = self.start.to_offset(buffer);
10518 let end = self.end.to_offset(buffer);
10519 if self.reversed {
10520 end..start
10521 } else {
10522 start..end
10523 }
10524 }
10525
10526 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10527 let start = self
10528 .start
10529 .to_point(&map.buffer_snapshot)
10530 .to_display_point(map);
10531 let end = self
10532 .end
10533 .to_point(&map.buffer_snapshot)
10534 .to_display_point(map);
10535 if self.reversed {
10536 end..start
10537 } else {
10538 start..end
10539 }
10540 }
10541
10542 fn spanned_rows(
10543 &self,
10544 include_end_if_at_line_start: bool,
10545 map: &DisplaySnapshot,
10546 ) -> Range<u32> {
10547 let start = self.start.to_point(&map.buffer_snapshot);
10548 let mut end = self.end.to_point(&map.buffer_snapshot);
10549 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10550 end.row -= 1;
10551 }
10552
10553 let buffer_start = map.prev_line_boundary(start).0;
10554 let buffer_end = map.next_line_boundary(end).0;
10555 buffer_start.row..buffer_end.row + 1
10556 }
10557}
10558
10559impl<T: InvalidationRegion> InvalidationStack<T> {
10560 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10561 where
10562 S: Clone + ToOffset,
10563 {
10564 while let Some(region) = self.last() {
10565 let all_selections_inside_invalidation_ranges =
10566 if selections.len() == region.ranges().len() {
10567 selections
10568 .iter()
10569 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10570 .all(|(selection, invalidation_range)| {
10571 let head = selection.head().to_offset(buffer);
10572 invalidation_range.start <= head && invalidation_range.end >= head
10573 })
10574 } else {
10575 false
10576 };
10577
10578 if all_selections_inside_invalidation_ranges {
10579 break;
10580 } else {
10581 self.pop();
10582 }
10583 }
10584 }
10585}
10586
10587impl<T> Default for InvalidationStack<T> {
10588 fn default() -> Self {
10589 Self(Default::default())
10590 }
10591}
10592
10593impl<T> Deref for InvalidationStack<T> {
10594 type Target = Vec<T>;
10595
10596 fn deref(&self) -> &Self::Target {
10597 &self.0
10598 }
10599}
10600
10601impl<T> DerefMut for InvalidationStack<T> {
10602 fn deref_mut(&mut self) -> &mut Self::Target {
10603 &mut self.0
10604 }
10605}
10606
10607impl InvalidationRegion for SnippetState {
10608 fn ranges(&self) -> &[Range<Anchor>] {
10609 &self.ranges[self.active_index]
10610 }
10611}
10612
10613pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10614 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10615
10616 Arc::new(move |cx: &mut BlockContext| {
10617 let group_id: SharedString = cx.block_id.to_string().into();
10618
10619 let mut text_style = cx.text_style().clone();
10620 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10621
10622 h_flex()
10623 .id(cx.block_id)
10624 .group(group_id.clone())
10625 .relative()
10626 .size_full()
10627 .pl(cx.gutter_dimensions.width)
10628 .w(cx.max_width + cx.gutter_dimensions.width)
10629 .child(
10630 div()
10631 .flex()
10632 .w(cx.anchor_x - cx.gutter_dimensions.width)
10633 .flex_shrink(),
10634 )
10635 .child(div().flex().flex_shrink_0().child(
10636 StyledText::new(text_without_backticks.clone()).with_highlights(
10637 &text_style,
10638 code_ranges.iter().map(|range| {
10639 (
10640 range.clone(),
10641 HighlightStyle {
10642 font_weight: Some(FontWeight::BOLD),
10643 ..Default::default()
10644 },
10645 )
10646 }),
10647 ),
10648 ))
10649 .child(
10650 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
10651 .icon_color(Color::Muted)
10652 .size(ButtonSize::Compact)
10653 .style(ButtonStyle::Transparent)
10654 .visible_on_hover(group_id)
10655 .on_click({
10656 let message = diagnostic.message.clone();
10657 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10658 })
10659 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10660 )
10661 .into_any_element()
10662 })
10663}
10664
10665pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10666 let mut text_without_backticks = String::new();
10667 let mut code_ranges = Vec::new();
10668
10669 if let Some(source) = &diagnostic.source {
10670 text_without_backticks.push_str(&source);
10671 code_ranges.push(0..source.len());
10672 text_without_backticks.push_str(": ");
10673 }
10674
10675 let mut prev_offset = 0;
10676 let mut in_code_block = false;
10677 for (ix, _) in diagnostic
10678 .message
10679 .match_indices('`')
10680 .chain([(diagnostic.message.len(), "")])
10681 {
10682 let prev_len = text_without_backticks.len();
10683 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10684 prev_offset = ix + 1;
10685 if in_code_block {
10686 code_ranges.push(prev_len..text_without_backticks.len());
10687 in_code_block = false;
10688 } else {
10689 in_code_block = true;
10690 }
10691 }
10692
10693 (text_without_backticks.into(), code_ranges)
10694}
10695
10696fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10697 match (severity, valid) {
10698 (DiagnosticSeverity::ERROR, true) => colors.error,
10699 (DiagnosticSeverity::ERROR, false) => colors.error,
10700 (DiagnosticSeverity::WARNING, true) => colors.warning,
10701 (DiagnosticSeverity::WARNING, false) => colors.warning,
10702 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10703 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10704 (DiagnosticSeverity::HINT, true) => colors.info,
10705 (DiagnosticSeverity::HINT, false) => colors.info,
10706 _ => colors.ignored,
10707 }
10708}
10709
10710pub fn styled_runs_for_code_label<'a>(
10711 label: &'a CodeLabel,
10712 syntax_theme: &'a theme::SyntaxTheme,
10713) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10714 let fade_out = HighlightStyle {
10715 fade_out: Some(0.35),
10716 ..Default::default()
10717 };
10718
10719 let mut prev_end = label.filter_range.end;
10720 label
10721 .runs
10722 .iter()
10723 .enumerate()
10724 .flat_map(move |(ix, (range, highlight_id))| {
10725 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10726 style
10727 } else {
10728 return Default::default();
10729 };
10730 let mut muted_style = style;
10731 muted_style.highlight(fade_out);
10732
10733 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10734 if range.start >= label.filter_range.end {
10735 if range.start > prev_end {
10736 runs.push((prev_end..range.start, fade_out));
10737 }
10738 runs.push((range.clone(), muted_style));
10739 } else if range.end <= label.filter_range.end {
10740 runs.push((range.clone(), style));
10741 } else {
10742 runs.push((range.start..label.filter_range.end, style));
10743 runs.push((label.filter_range.end..range.end, muted_style));
10744 }
10745 prev_end = cmp::max(prev_end, range.end);
10746
10747 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10748 runs.push((prev_end..label.text.len(), fade_out));
10749 }
10750
10751 runs
10752 })
10753}
10754
10755pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
10756 let mut prev_index = 0;
10757 let mut prev_codepoint: Option<char> = None;
10758 text.char_indices()
10759 .chain([(text.len(), '\0')])
10760 .filter_map(move |(index, codepoint)| {
10761 let prev_codepoint = prev_codepoint.replace(codepoint)?;
10762 let is_boundary = index == text.len()
10763 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
10764 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
10765 if is_boundary {
10766 let chunk = &text[prev_index..index];
10767 prev_index = index;
10768 Some(chunk)
10769 } else {
10770 None
10771 }
10772 })
10773}
10774
10775trait RangeToAnchorExt {
10776 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10777}
10778
10779impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10780 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10781 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10782 }
10783}