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::ops::Not as _;
105use std::{
106 any::TypeId,
107 borrow::Cow,
108 cmp::{self, Ordering, Reverse},
109 mem,
110 num::NonZeroU32,
111 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
112 path::Path,
113 sync::Arc,
114 time::{Duration, Instant},
115};
116pub use sum_tree::Bias;
117use text::{BufferId, OffsetUtf16, Rope};
118use theme::{
119 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
120 ThemeColors, ThemeSettings,
121};
122use ui::{
123 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
124 Tooltip,
125};
126use util::{maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
127use workspace::Toast;
128use workspace::{searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace};
129
130use crate::hover_links::find_url;
131
132const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
133const MAX_LINE_LEN: usize = 1024;
134const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
135const MAX_SELECTION_HISTORY_LEN: usize = 1024;
136const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
137pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
138#[doc(hidden)]
139pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
140#[doc(hidden)]
141pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
142
143pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
144
145pub fn render_parsed_markdown(
146 element_id: impl Into<ElementId>,
147 parsed: &language::ParsedMarkdown,
148 editor_style: &EditorStyle,
149 workspace: Option<WeakView<Workspace>>,
150 cx: &mut ViewContext<Editor>,
151) -> InteractiveText {
152 let code_span_background_color = cx
153 .theme()
154 .colors()
155 .editor_document_highlight_read_background;
156
157 let highlights = gpui::combine_highlights(
158 parsed.highlights.iter().filter_map(|(range, highlight)| {
159 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
160 Some((range.clone(), highlight))
161 }),
162 parsed
163 .regions
164 .iter()
165 .zip(&parsed.region_ranges)
166 .filter_map(|(region, range)| {
167 if region.code {
168 Some((
169 range.clone(),
170 HighlightStyle {
171 background_color: Some(code_span_background_color),
172 ..Default::default()
173 },
174 ))
175 } else {
176 None
177 }
178 }),
179 );
180
181 let mut links = Vec::new();
182 let mut link_ranges = Vec::new();
183 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
184 if let Some(link) = region.link.clone() {
185 links.push(link);
186 link_ranges.push(range.clone());
187 }
188 }
189
190 InteractiveText::new(
191 element_id,
192 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
193 )
194 .on_click(link_ranges, move |clicked_range_ix, cx| {
195 match &links[clicked_range_ix] {
196 markdown::Link::Web { url } => cx.open_url(url),
197 markdown::Link::Path { path } => {
198 if let Some(workspace) = &workspace {
199 _ = workspace.update(cx, |workspace, cx| {
200 workspace.open_abs_path(path.clone(), false, cx).detach();
201 });
202 }
203 }
204 }
205 })
206}
207
208#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
209pub(crate) enum InlayId {
210 Suggestion(usize),
211 Hint(usize),
212}
213
214impl InlayId {
215 fn id(&self) -> usize {
216 match self {
217 Self::Suggestion(id) => *id,
218 Self::Hint(id) => *id,
219 }
220 }
221}
222
223enum DocumentHighlightRead {}
224enum DocumentHighlightWrite {}
225enum InputComposition {}
226
227#[derive(Copy, Clone, PartialEq, Eq)]
228pub enum Direction {
229 Prev,
230 Next,
231}
232
233pub fn init_settings(cx: &mut AppContext) {
234 EditorSettings::register(cx);
235}
236
237pub fn init(cx: &mut AppContext) {
238 init_settings(cx);
239
240 workspace::register_project_item::<Editor>(cx);
241 workspace::register_followable_item::<Editor>(cx);
242 workspace::register_deserializable_item::<Editor>(cx);
243 cx.observe_new_views(
244 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
245 workspace.register_action(Editor::new_file);
246 workspace.register_action(Editor::new_file_in_direction);
247 },
248 )
249 .detach();
250
251 cx.on_action(move |_: &workspace::NewFile, cx| {
252 let app_state = workspace::AppState::global(cx);
253 if let Some(app_state) = app_state.upgrade() {
254 workspace::open_new(app_state, cx, |workspace, cx| {
255 Editor::new_file(workspace, &Default::default(), cx)
256 })
257 .detach();
258 }
259 });
260 cx.on_action(move |_: &workspace::NewWindow, cx| {
261 let app_state = workspace::AppState::global(cx);
262 if let Some(app_state) = app_state.upgrade() {
263 workspace::open_new(app_state, cx, |workspace, cx| {
264 Editor::new_file(workspace, &Default::default(), cx)
265 })
266 .detach();
267 }
268 });
269}
270
271trait InvalidationRegion {
272 fn ranges(&self) -> &[Range<Anchor>];
273}
274
275#[derive(Clone, Debug, PartialEq)]
276pub enum SelectPhase {
277 Begin {
278 position: DisplayPoint,
279 add: bool,
280 click_count: usize,
281 },
282 BeginColumnar {
283 position: DisplayPoint,
284 goal_column: u32,
285 },
286 Extend {
287 position: DisplayPoint,
288 click_count: usize,
289 },
290 Update {
291 position: DisplayPoint,
292 goal_column: u32,
293 scroll_delta: gpui::Point<f32>,
294 },
295 End,
296}
297
298#[derive(Clone, Debug)]
299pub enum SelectMode {
300 Character,
301 Word(Range<Anchor>),
302 Line(Range<Anchor>),
303 All,
304}
305
306#[derive(Copy, Clone, PartialEq, Eq, Debug)]
307pub enum EditorMode {
308 SingleLine,
309 AutoHeight { max_lines: usize },
310 Full,
311}
312
313#[derive(Clone, Debug)]
314pub enum SoftWrap {
315 None,
316 EditorWidth,
317 Column(u32),
318}
319
320#[derive(Clone)]
321pub struct EditorStyle {
322 pub background: Hsla,
323 pub local_player: PlayerColor,
324 pub text: TextStyle,
325 pub scrollbar_width: Pixels,
326 pub syntax: Arc<SyntaxTheme>,
327 pub status: StatusColors,
328 pub inlay_hints_style: HighlightStyle,
329 pub suggestions_style: HighlightStyle,
330}
331
332impl Default for EditorStyle {
333 fn default() -> Self {
334 Self {
335 background: Hsla::default(),
336 local_player: PlayerColor::default(),
337 text: TextStyle::default(),
338 scrollbar_width: Pixels::default(),
339 syntax: Default::default(),
340 // HACK: Status colors don't have a real default.
341 // We should look into removing the status colors from the editor
342 // style and retrieve them directly from the theme.
343 status: StatusColors::dark(),
344 inlay_hints_style: HighlightStyle::default(),
345 suggestions_style: HighlightStyle::default(),
346 }
347 }
348}
349
350type CompletionId = usize;
351
352// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
353// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
354
355type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
356
357/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
358///
359/// See the [module level documentation](self) for more information.
360pub struct Editor {
361 focus_handle: FocusHandle,
362 /// The text buffer being edited
363 buffer: Model<MultiBuffer>,
364 /// Map of how text in the buffer should be displayed.
365 /// Handles soft wraps, folds, fake inlay text insertions, etc.
366 display_map: Model<DisplayMap>,
367 pub selections: SelectionsCollection,
368 pub scroll_manager: ScrollManager,
369 columnar_selection_tail: Option<Anchor>,
370 add_selections_state: Option<AddSelectionsState>,
371 select_next_state: Option<SelectNextState>,
372 select_prev_state: Option<SelectNextState>,
373 selection_history: SelectionHistory,
374 autoclose_regions: Vec<AutocloseRegion>,
375 snippet_stack: InvalidationStack<SnippetState>,
376 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
377 ime_transaction: Option<TransactionId>,
378 active_diagnostics: Option<ActiveDiagnosticGroup>,
379 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
380 project: Option<Model<Project>>,
381 completion_provider: Option<Box<dyn CompletionProvider>>,
382 collaboration_hub: Option<Box<dyn CollaborationHub>>,
383 blink_manager: Model<BlinkManager>,
384 show_cursor_names: bool,
385 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
386 pub show_local_selections: bool,
387 mode: EditorMode,
388 show_breadcrumbs: bool,
389 show_gutter: bool,
390 show_wrap_guides: Option<bool>,
391 placeholder_text: Option<Arc<str>>,
392 highlight_order: usize,
393 highlighted_rows: HashMap<TypeId, Vec<(usize, Range<Anchor>, Hsla)>>,
394 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
395 nav_history: Option<ItemNavHistory>,
396 context_menu: RwLock<Option<ContextMenu>>,
397 mouse_context_menu: Option<MouseContextMenu>,
398 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
399 find_all_references_task_sources: Vec<Anchor>,
400 next_completion_id: CompletionId,
401 completion_documentation_pre_resolve_debounce: DebouncedDelay,
402 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
403 code_actions_task: Option<Task<()>>,
404 document_highlights_task: Option<Task<()>>,
405 pending_rename: Option<RenameState>,
406 searchable: bool,
407 cursor_shape: CursorShape,
408 collapse_matches: bool,
409 autoindent_mode: Option<AutoindentMode>,
410 workspace: Option<(WeakView<Workspace>, i64)>,
411 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
412 input_enabled: bool,
413 use_modal_editing: bool,
414 read_only: bool,
415 leader_peer_id: Option<PeerId>,
416 remote_id: Option<ViewId>,
417 hover_state: HoverState,
418 gutter_hovered: bool,
419 hovered_link_state: Option<HoveredLinkState>,
420 copilot_state: CopilotState,
421 inlay_hint_cache: InlayHintCache,
422 next_inlay_id: usize,
423 _subscriptions: Vec<Subscription>,
424 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
425 gutter_width: Pixels,
426 style: Option<EditorStyle>,
427 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
428 show_copilot_suggestions: bool,
429 use_autoclose: bool,
430 auto_replace_emoji_shortcode: bool,
431 custom_context_menu: Option<
432 Box<
433 dyn 'static
434 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
435 >,
436 >,
437}
438
439pub struct EditorSnapshot {
440 pub mode: EditorMode,
441 show_gutter: bool,
442 pub display_snapshot: DisplaySnapshot,
443 pub placeholder_text: Option<Arc<str>>,
444 is_focused: bool,
445 scroll_anchor: ScrollAnchor,
446 ongoing_scroll: OngoingScroll,
447}
448
449pub struct GutterDimensions {
450 pub left_padding: Pixels,
451 pub right_padding: Pixels,
452 pub width: Pixels,
453 pub margin: Pixels,
454}
455
456impl Default for GutterDimensions {
457 fn default() -> Self {
458 Self {
459 left_padding: Pixels::ZERO,
460 right_padding: Pixels::ZERO,
461 width: Pixels::ZERO,
462 margin: Pixels::ZERO,
463 }
464 }
465}
466
467#[derive(Debug)]
468pub struct RemoteSelection {
469 pub replica_id: ReplicaId,
470 pub selection: Selection<Anchor>,
471 pub cursor_shape: CursorShape,
472 pub peer_id: PeerId,
473 pub line_mode: bool,
474 pub participant_index: Option<ParticipantIndex>,
475 pub user_name: Option<SharedString>,
476}
477
478#[derive(Clone, Debug)]
479struct SelectionHistoryEntry {
480 selections: Arc<[Selection<Anchor>]>,
481 select_next_state: Option<SelectNextState>,
482 select_prev_state: Option<SelectNextState>,
483 add_selections_state: Option<AddSelectionsState>,
484}
485
486enum SelectionHistoryMode {
487 Normal,
488 Undoing,
489 Redoing,
490}
491
492#[derive(Clone, PartialEq, Eq, Hash)]
493struct HoveredCursor {
494 replica_id: u16,
495 selection_id: usize,
496}
497
498impl Default for SelectionHistoryMode {
499 fn default() -> Self {
500 Self::Normal
501 }
502}
503
504#[derive(Default)]
505struct SelectionHistory {
506 #[allow(clippy::type_complexity)]
507 selections_by_transaction:
508 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
509 mode: SelectionHistoryMode,
510 undo_stack: VecDeque<SelectionHistoryEntry>,
511 redo_stack: VecDeque<SelectionHistoryEntry>,
512}
513
514impl SelectionHistory {
515 fn insert_transaction(
516 &mut self,
517 transaction_id: TransactionId,
518 selections: Arc<[Selection<Anchor>]>,
519 ) {
520 self.selections_by_transaction
521 .insert(transaction_id, (selections, None));
522 }
523
524 #[allow(clippy::type_complexity)]
525 fn transaction(
526 &self,
527 transaction_id: TransactionId,
528 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
529 self.selections_by_transaction.get(&transaction_id)
530 }
531
532 #[allow(clippy::type_complexity)]
533 fn transaction_mut(
534 &mut self,
535 transaction_id: TransactionId,
536 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
537 self.selections_by_transaction.get_mut(&transaction_id)
538 }
539
540 fn push(&mut self, entry: SelectionHistoryEntry) {
541 if !entry.selections.is_empty() {
542 match self.mode {
543 SelectionHistoryMode::Normal => {
544 self.push_undo(entry);
545 self.redo_stack.clear();
546 }
547 SelectionHistoryMode::Undoing => self.push_redo(entry),
548 SelectionHistoryMode::Redoing => self.push_undo(entry),
549 }
550 }
551 }
552
553 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
554 if self
555 .undo_stack
556 .back()
557 .map_or(true, |e| e.selections != entry.selections)
558 {
559 self.undo_stack.push_back(entry);
560 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
561 self.undo_stack.pop_front();
562 }
563 }
564 }
565
566 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
567 if self
568 .redo_stack
569 .back()
570 .map_or(true, |e| e.selections != entry.selections)
571 {
572 self.redo_stack.push_back(entry);
573 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
574 self.redo_stack.pop_front();
575 }
576 }
577 }
578}
579
580#[derive(Clone, Debug)]
581struct AddSelectionsState {
582 above: bool,
583 stack: Vec<usize>,
584}
585
586#[derive(Clone)]
587struct SelectNextState {
588 query: AhoCorasick,
589 wordwise: bool,
590 done: bool,
591}
592
593impl std::fmt::Debug for SelectNextState {
594 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
595 f.debug_struct(std::any::type_name::<Self>())
596 .field("wordwise", &self.wordwise)
597 .field("done", &self.done)
598 .finish()
599 }
600}
601
602#[derive(Debug)]
603struct AutocloseRegion {
604 selection_id: usize,
605 range: Range<Anchor>,
606 pair: BracketPair,
607}
608
609#[derive(Debug)]
610struct SnippetState {
611 ranges: Vec<Vec<Range<Anchor>>>,
612 active_index: usize,
613}
614
615#[doc(hidden)]
616pub struct RenameState {
617 pub range: Range<Anchor>,
618 pub old_name: Arc<str>,
619 pub editor: View<Editor>,
620 block_id: BlockId,
621}
622
623struct InvalidationStack<T>(Vec<T>);
624
625enum ContextMenu {
626 Completions(CompletionsMenu),
627 CodeActions(CodeActionsMenu),
628}
629
630impl ContextMenu {
631 fn select_first(
632 &mut self,
633 project: Option<&Model<Project>>,
634 cx: &mut ViewContext<Editor>,
635 ) -> bool {
636 if self.visible() {
637 match self {
638 ContextMenu::Completions(menu) => menu.select_first(project, cx),
639 ContextMenu::CodeActions(menu) => menu.select_first(cx),
640 }
641 true
642 } else {
643 false
644 }
645 }
646
647 fn select_prev(
648 &mut self,
649 project: Option<&Model<Project>>,
650 cx: &mut ViewContext<Editor>,
651 ) -> bool {
652 if self.visible() {
653 match self {
654 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
655 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
656 }
657 true
658 } else {
659 false
660 }
661 }
662
663 fn select_next(
664 &mut self,
665 project: Option<&Model<Project>>,
666 cx: &mut ViewContext<Editor>,
667 ) -> bool {
668 if self.visible() {
669 match self {
670 ContextMenu::Completions(menu) => menu.select_next(project, cx),
671 ContextMenu::CodeActions(menu) => menu.select_next(cx),
672 }
673 true
674 } else {
675 false
676 }
677 }
678
679 fn select_last(
680 &mut self,
681 project: Option<&Model<Project>>,
682 cx: &mut ViewContext<Editor>,
683 ) -> bool {
684 if self.visible() {
685 match self {
686 ContextMenu::Completions(menu) => menu.select_last(project, cx),
687 ContextMenu::CodeActions(menu) => menu.select_last(cx),
688 }
689 true
690 } else {
691 false
692 }
693 }
694
695 fn visible(&self) -> bool {
696 match self {
697 ContextMenu::Completions(menu) => menu.visible(),
698 ContextMenu::CodeActions(menu) => menu.visible(),
699 }
700 }
701
702 fn render(
703 &self,
704 cursor_position: DisplayPoint,
705 style: &EditorStyle,
706 max_height: Pixels,
707 workspace: Option<WeakView<Workspace>>,
708 cx: &mut ViewContext<Editor>,
709 ) -> (DisplayPoint, AnyElement) {
710 match self {
711 ContextMenu::Completions(menu) => (
712 cursor_position,
713 menu.render(style, max_height, workspace, cx),
714 ),
715 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
716 }
717 }
718}
719
720#[derive(Clone)]
721struct CompletionsMenu {
722 id: CompletionId,
723 initial_position: Anchor,
724 buffer: Model<Buffer>,
725 completions: Arc<RwLock<Box<[Completion]>>>,
726 match_candidates: Arc<[StringMatchCandidate]>,
727 matches: Arc<[StringMatch]>,
728 selected_item: usize,
729 scroll_handle: UniformListScrollHandle,
730 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
731}
732
733impl CompletionsMenu {
734 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
735 self.selected_item = 0;
736 self.scroll_handle.scroll_to_item(self.selected_item);
737 self.attempt_resolve_selected_completion_documentation(project, cx);
738 cx.notify();
739 }
740
741 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
742 if self.selected_item > 0 {
743 self.selected_item -= 1;
744 } else {
745 self.selected_item = self.matches.len() - 1;
746 }
747 self.scroll_handle.scroll_to_item(self.selected_item);
748 self.attempt_resolve_selected_completion_documentation(project, cx);
749 cx.notify();
750 }
751
752 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
753 if self.selected_item + 1 < self.matches.len() {
754 self.selected_item += 1;
755 } else {
756 self.selected_item = 0;
757 }
758 self.scroll_handle.scroll_to_item(self.selected_item);
759 self.attempt_resolve_selected_completion_documentation(project, cx);
760 cx.notify();
761 }
762
763 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
764 self.selected_item = self.matches.len() - 1;
765 self.scroll_handle.scroll_to_item(self.selected_item);
766 self.attempt_resolve_selected_completion_documentation(project, cx);
767 cx.notify();
768 }
769
770 fn pre_resolve_completion_documentation(
771 completions: Arc<RwLock<Box<[Completion]>>>,
772 matches: Arc<[StringMatch]>,
773 editor: &Editor,
774 cx: &mut ViewContext<Editor>,
775 ) -> Task<()> {
776 let settings = EditorSettings::get_global(cx);
777 if !settings.show_completion_documentation {
778 return Task::ready(());
779 }
780
781 let Some(provider) = editor.completion_provider.as_ref() else {
782 return Task::ready(());
783 };
784
785 let resolve_task = provider.resolve_completions(
786 matches.iter().map(|m| m.candidate_id).collect(),
787 completions.clone(),
788 cx,
789 );
790
791 return cx.spawn(move |this, mut cx| async move {
792 if let Some(true) = resolve_task.await.log_err() {
793 this.update(&mut cx, |_, cx| cx.notify()).ok();
794 }
795 });
796 }
797
798 fn attempt_resolve_selected_completion_documentation(
799 &mut self,
800 project: Option<&Model<Project>>,
801 cx: &mut ViewContext<Editor>,
802 ) {
803 let settings = EditorSettings::get_global(cx);
804 if !settings.show_completion_documentation {
805 return;
806 }
807
808 let completion_index = self.matches[self.selected_item].candidate_id;
809 let Some(project) = project else {
810 return;
811 };
812
813 let resolve_task = project.update(cx, |project, cx| {
814 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
815 });
816
817 let delay_ms =
818 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
819 let delay = Duration::from_millis(delay_ms);
820
821 self.selected_completion_documentation_resolve_debounce
822 .lock()
823 .fire_new(delay, cx, |_, cx| {
824 cx.spawn(move |this, mut cx| async move {
825 if let Some(true) = resolve_task.await.log_err() {
826 this.update(&mut cx, |_, cx| cx.notify()).ok();
827 }
828 })
829 });
830 }
831
832 fn visible(&self) -> bool {
833 !self.matches.is_empty()
834 }
835
836 fn render(
837 &self,
838 style: &EditorStyle,
839 max_height: Pixels,
840 workspace: Option<WeakView<Workspace>>,
841 cx: &mut ViewContext<Editor>,
842 ) -> AnyElement {
843 let settings = EditorSettings::get_global(cx);
844 let show_completion_documentation = settings.show_completion_documentation;
845
846 let widest_completion_ix = self
847 .matches
848 .iter()
849 .enumerate()
850 .max_by_key(|(_, mat)| {
851 let completions = self.completions.read();
852 let completion = &completions[mat.candidate_id];
853 let documentation = &completion.documentation;
854
855 let mut len = completion.label.text.chars().count();
856 if let Some(Documentation::SingleLine(text)) = documentation {
857 if show_completion_documentation {
858 len += text.chars().count();
859 }
860 }
861
862 len
863 })
864 .map(|(ix, _)| ix);
865
866 let completions = self.completions.clone();
867 let matches = self.matches.clone();
868 let selected_item = self.selected_item;
869 let style = style.clone();
870
871 let multiline_docs = if show_completion_documentation {
872 let mat = &self.matches[selected_item];
873 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
874 Some(Documentation::MultiLinePlainText(text)) => {
875 Some(div().child(SharedString::from(text.clone())))
876 }
877 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
878 Some(div().child(render_parsed_markdown(
879 "completions_markdown",
880 parsed,
881 &style,
882 workspace,
883 cx,
884 )))
885 }
886 _ => None,
887 };
888 multiline_docs.map(|div| {
889 div.id("multiline_docs")
890 .max_h(max_height)
891 .flex_1()
892 .px_1p5()
893 .py_1()
894 .min_w(px(260.))
895 .max_w(px(640.))
896 .w(px(500.))
897 .overflow_y_scroll()
898 // Prevent a mouse down on documentation from being propagated to the editor,
899 // because that would move the cursor.
900 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
901 })
902 } else {
903 None
904 };
905
906 let list = uniform_list(
907 cx.view().clone(),
908 "completions",
909 matches.len(),
910 move |_editor, range, cx| {
911 let start_ix = range.start;
912 let completions_guard = completions.read();
913
914 matches[range]
915 .iter()
916 .enumerate()
917 .map(|(ix, mat)| {
918 let item_ix = start_ix + ix;
919 let candidate_id = mat.candidate_id;
920 let completion = &completions_guard[candidate_id];
921
922 let documentation = if show_completion_documentation {
923 &completion.documentation
924 } else {
925 &None
926 };
927
928 let highlights = gpui::combine_highlights(
929 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
930 styled_runs_for_code_label(&completion.label, &style.syntax).map(
931 |(range, mut highlight)| {
932 // Ignore font weight for syntax highlighting, as we'll use it
933 // for fuzzy matches.
934 highlight.font_weight = None;
935
936 if completion.lsp_completion.deprecated.unwrap_or(false) {
937 highlight.strikethrough = Some(StrikethroughStyle {
938 thickness: 1.0.into(),
939 ..Default::default()
940 });
941 highlight.color = Some(cx.theme().colors().text_muted);
942 }
943
944 (range, highlight)
945 },
946 ),
947 );
948 let completion_label = StyledText::new(completion.label.text.clone())
949 .with_highlights(&style.text, highlights);
950 let documentation_label =
951 if let Some(Documentation::SingleLine(text)) = documentation {
952 if text.trim().is_empty() {
953 None
954 } else {
955 Some(
956 h_flex().ml_4().child(
957 Label::new(text.clone())
958 .size(LabelSize::Small)
959 .color(Color::Muted),
960 ),
961 )
962 }
963 } else {
964 None
965 };
966
967 div().min_w(px(220.)).max_w(px(540.)).child(
968 ListItem::new(mat.candidate_id)
969 .inset(true)
970 .selected(item_ix == selected_item)
971 .on_click(cx.listener(move |editor, _event, cx| {
972 cx.stop_propagation();
973 if let Some(task) = editor.confirm_completion(
974 &ConfirmCompletion {
975 item_ix: Some(item_ix),
976 },
977 cx,
978 ) {
979 task.detach_and_log_err(cx)
980 }
981 }))
982 .child(h_flex().overflow_hidden().child(completion_label))
983 .end_slot::<Div>(documentation_label),
984 )
985 })
986 .collect()
987 },
988 )
989 .max_h(max_height)
990 .track_scroll(self.scroll_handle.clone())
991 .with_width_from_item(widest_completion_ix);
992
993 Popover::new()
994 .child(list)
995 .when_some(multiline_docs, |popover, multiline_docs| {
996 popover.aside(multiline_docs)
997 })
998 .into_any_element()
999 }
1000
1001 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1002 let mut matches = if let Some(query) = query {
1003 fuzzy::match_strings(
1004 &self.match_candidates,
1005 query,
1006 query.chars().any(|c| c.is_uppercase()),
1007 100,
1008 &Default::default(),
1009 executor,
1010 )
1011 .await
1012 } else {
1013 self.match_candidates
1014 .iter()
1015 .enumerate()
1016 .map(|(candidate_id, candidate)| StringMatch {
1017 candidate_id,
1018 score: Default::default(),
1019 positions: Default::default(),
1020 string: candidate.string.clone(),
1021 })
1022 .collect()
1023 };
1024
1025 // Remove all candidates where the query's start does not match the start of any word in the candidate
1026 if let Some(query) = query {
1027 if let Some(query_start) = query.chars().next() {
1028 matches.retain(|string_match| {
1029 split_words(&string_match.string).any(|word| {
1030 // Check that the first codepoint of the word as lowercase matches the first
1031 // codepoint of the query as lowercase
1032 word.chars()
1033 .flat_map(|codepoint| codepoint.to_lowercase())
1034 .zip(query_start.to_lowercase())
1035 .all(|(word_cp, query_cp)| word_cp == query_cp)
1036 })
1037 });
1038 }
1039 }
1040
1041 let completions = self.completions.read();
1042 matches.sort_unstable_by_key(|mat| {
1043 // We do want to strike a balance here between what the language server tells us
1044 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1045 // `Creat` and there is a local variable called `CreateComponent`).
1046 // So what we do is: we bucket all matches into two buckets
1047 // - Strong matches
1048 // - Weak matches
1049 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1050 // and the Weak matches are the rest.
1051 //
1052 // For the strong matches, we sort by the language-servers score first and for the weak
1053 // matches, we prefer our fuzzy finder first.
1054 //
1055 // The thinking behind that: it's useless to take the sort_text the language-server gives
1056 // us into account when it's obviously a bad match.
1057
1058 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1059 enum MatchScore<'a> {
1060 Strong {
1061 sort_text: Option<&'a str>,
1062 score: Reverse<OrderedFloat<f64>>,
1063 sort_key: (usize, &'a str),
1064 },
1065 Weak {
1066 score: Reverse<OrderedFloat<f64>>,
1067 sort_text: Option<&'a str>,
1068 sort_key: (usize, &'a str),
1069 },
1070 }
1071
1072 let completion = &completions[mat.candidate_id];
1073 let sort_key = completion.sort_key();
1074 let sort_text = completion.lsp_completion.sort_text.as_deref();
1075 let score = Reverse(OrderedFloat(mat.score));
1076
1077 if mat.score >= 0.2 {
1078 MatchScore::Strong {
1079 sort_text,
1080 score,
1081 sort_key,
1082 }
1083 } else {
1084 MatchScore::Weak {
1085 score,
1086 sort_text,
1087 sort_key,
1088 }
1089 }
1090 });
1091
1092 for mat in &mut matches {
1093 let completion = &completions[mat.candidate_id];
1094 mat.string = completion.label.text.clone();
1095 for position in &mut mat.positions {
1096 *position += completion.label.filter_range.start;
1097 }
1098 }
1099 drop(completions);
1100
1101 self.matches = matches.into();
1102 self.selected_item = 0;
1103 }
1104}
1105
1106#[derive(Clone)]
1107struct CodeActionsMenu {
1108 actions: Arc<[CodeAction]>,
1109 buffer: Model<Buffer>,
1110 selected_item: usize,
1111 scroll_handle: UniformListScrollHandle,
1112 deployed_from_indicator: bool,
1113}
1114
1115impl CodeActionsMenu {
1116 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1117 self.selected_item = 0;
1118 self.scroll_handle.scroll_to_item(self.selected_item);
1119 cx.notify()
1120 }
1121
1122 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1123 if self.selected_item > 0 {
1124 self.selected_item -= 1;
1125 } else {
1126 self.selected_item = self.actions.len() - 1;
1127 }
1128 self.scroll_handle.scroll_to_item(self.selected_item);
1129 cx.notify();
1130 }
1131
1132 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1133 if self.selected_item + 1 < self.actions.len() {
1134 self.selected_item += 1;
1135 } else {
1136 self.selected_item = 0;
1137 }
1138 self.scroll_handle.scroll_to_item(self.selected_item);
1139 cx.notify();
1140 }
1141
1142 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1143 self.selected_item = self.actions.len() - 1;
1144 self.scroll_handle.scroll_to_item(self.selected_item);
1145 cx.notify()
1146 }
1147
1148 fn visible(&self) -> bool {
1149 !self.actions.is_empty()
1150 }
1151
1152 fn render(
1153 &self,
1154 mut cursor_position: DisplayPoint,
1155 _style: &EditorStyle,
1156 max_height: Pixels,
1157 cx: &mut ViewContext<Editor>,
1158 ) -> (DisplayPoint, AnyElement) {
1159 let actions = self.actions.clone();
1160 let selected_item = self.selected_item;
1161
1162 let element = uniform_list(
1163 cx.view().clone(),
1164 "code_actions_menu",
1165 self.actions.len(),
1166 move |_this, range, cx| {
1167 actions[range.clone()]
1168 .iter()
1169 .enumerate()
1170 .map(|(ix, action)| {
1171 let item_ix = range.start + ix;
1172 let selected = selected_item == item_ix;
1173 let colors = cx.theme().colors();
1174 div()
1175 .px_2()
1176 .text_color(colors.text)
1177 .when(selected, |style| {
1178 style
1179 .bg(colors.element_active)
1180 .text_color(colors.text_accent)
1181 })
1182 .hover(|style| {
1183 style
1184 .bg(colors.element_hover)
1185 .text_color(colors.text_accent)
1186 })
1187 .on_mouse_down(
1188 MouseButton::Left,
1189 cx.listener(move |editor, _, cx| {
1190 cx.stop_propagation();
1191 if let Some(task) = editor.confirm_code_action(
1192 &ConfirmCodeAction {
1193 item_ix: Some(item_ix),
1194 },
1195 cx,
1196 ) {
1197 task.detach_and_log_err(cx)
1198 }
1199 }),
1200 )
1201 .whitespace_nowrap()
1202 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1203 .child(SharedString::from(action.lsp_action.title.clone()))
1204 })
1205 .collect()
1206 },
1207 )
1208 .elevation_1(cx)
1209 .px_2()
1210 .py_1()
1211 .max_h(max_height)
1212 .track_scroll(self.scroll_handle.clone())
1213 .with_width_from_item(
1214 self.actions
1215 .iter()
1216 .enumerate()
1217 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1218 .map(|(ix, _)| ix),
1219 )
1220 .into_any_element();
1221
1222 if self.deployed_from_indicator {
1223 *cursor_position.column_mut() = 0;
1224 }
1225
1226 (cursor_position, element)
1227 }
1228}
1229
1230#[derive(Debug)]
1231pub(crate) struct CopilotState {
1232 excerpt_id: Option<ExcerptId>,
1233 pending_refresh: Task<Option<()>>,
1234 pending_cycling_refresh: Task<Option<()>>,
1235 cycled: bool,
1236 completions: Vec<copilot::Completion>,
1237 active_completion_index: usize,
1238 suggestion: Option<Inlay>,
1239}
1240
1241impl Default for CopilotState {
1242 fn default() -> Self {
1243 Self {
1244 excerpt_id: None,
1245 pending_cycling_refresh: Task::ready(Some(())),
1246 pending_refresh: Task::ready(Some(())),
1247 completions: Default::default(),
1248 active_completion_index: 0,
1249 cycled: false,
1250 suggestion: None,
1251 }
1252 }
1253}
1254
1255impl CopilotState {
1256 fn active_completion(&self) -> Option<&copilot::Completion> {
1257 self.completions.get(self.active_completion_index)
1258 }
1259
1260 fn text_for_active_completion(
1261 &self,
1262 cursor: Anchor,
1263 buffer: &MultiBufferSnapshot,
1264 ) -> Option<&str> {
1265 use language::ToOffset as _;
1266
1267 let completion = self.active_completion()?;
1268 let excerpt_id = self.excerpt_id?;
1269 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1270 if excerpt_id != cursor.excerpt_id
1271 || !completion.range.start.is_valid(completion_buffer)
1272 || !completion.range.end.is_valid(completion_buffer)
1273 {
1274 return None;
1275 }
1276
1277 let mut completion_range = completion.range.to_offset(&completion_buffer);
1278 let prefix_len = Self::common_prefix(
1279 completion_buffer.chars_for_range(completion_range.clone()),
1280 completion.text.chars(),
1281 );
1282 completion_range.start += prefix_len;
1283 let suffix_len = Self::common_prefix(
1284 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1285 completion.text[prefix_len..].chars().rev(),
1286 );
1287 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1288
1289 if completion_range.is_empty()
1290 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1291 {
1292 let completion_text = &completion.text[prefix_len..completion.text.len() - suffix_len];
1293 if completion_text.trim().is_empty() {
1294 None
1295 } else {
1296 Some(completion_text)
1297 }
1298 } else {
1299 None
1300 }
1301 }
1302
1303 fn cycle_completions(&mut self, direction: Direction) {
1304 match direction {
1305 Direction::Prev => {
1306 self.active_completion_index = if self.active_completion_index == 0 {
1307 self.completions.len().saturating_sub(1)
1308 } else {
1309 self.active_completion_index - 1
1310 };
1311 }
1312 Direction::Next => {
1313 if self.completions.len() == 0 {
1314 self.active_completion_index = 0
1315 } else {
1316 self.active_completion_index =
1317 (self.active_completion_index + 1) % self.completions.len();
1318 }
1319 }
1320 }
1321 }
1322
1323 fn push_completion(&mut self, new_completion: copilot::Completion) {
1324 for completion in &self.completions {
1325 if completion.text == new_completion.text && completion.range == new_completion.range {
1326 return;
1327 }
1328 }
1329 self.completions.push(new_completion);
1330 }
1331
1332 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1333 a.zip(b)
1334 .take_while(|(a, b)| a == b)
1335 .map(|(a, _)| a.len_utf8())
1336 .sum()
1337 }
1338}
1339
1340#[derive(Debug)]
1341struct ActiveDiagnosticGroup {
1342 primary_range: Range<Anchor>,
1343 primary_message: String,
1344 blocks: HashMap<BlockId, Diagnostic>,
1345 is_valid: bool,
1346}
1347
1348#[derive(Serialize, Deserialize)]
1349pub struct ClipboardSelection {
1350 pub len: usize,
1351 pub is_entire_line: bool,
1352 pub first_line_indent: u32,
1353}
1354
1355#[derive(Debug)]
1356pub(crate) struct NavigationData {
1357 cursor_anchor: Anchor,
1358 cursor_position: Point,
1359 scroll_anchor: ScrollAnchor,
1360 scroll_top_row: u32,
1361}
1362
1363enum GotoDefinitionKind {
1364 Symbol,
1365 Type,
1366 Implementation,
1367}
1368
1369#[derive(Debug, Clone)]
1370enum InlayHintRefreshReason {
1371 Toggle(bool),
1372 SettingsChange(InlayHintSettings),
1373 NewLinesShown,
1374 BufferEdited(HashSet<Arc<Language>>),
1375 RefreshRequested,
1376 ExcerptsRemoved(Vec<ExcerptId>),
1377}
1378
1379impl InlayHintRefreshReason {
1380 fn description(&self) -> &'static str {
1381 match self {
1382 Self::Toggle(_) => "toggle",
1383 Self::SettingsChange(_) => "settings change",
1384 Self::NewLinesShown => "new lines shown",
1385 Self::BufferEdited(_) => "buffer edited",
1386 Self::RefreshRequested => "refresh requested",
1387 Self::ExcerptsRemoved(_) => "excerpts removed",
1388 }
1389 }
1390}
1391
1392impl Editor {
1393 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1394 let buffer = cx.new_model(|cx| {
1395 Buffer::new(
1396 0,
1397 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1398 String::new(),
1399 )
1400 });
1401 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1402 Self::new(EditorMode::SingleLine, buffer, None, cx)
1403 }
1404
1405 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1406 let buffer = cx.new_model(|cx| {
1407 Buffer::new(
1408 0,
1409 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1410 String::new(),
1411 )
1412 });
1413 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1414 Self::new(EditorMode::Full, buffer, None, cx)
1415 }
1416
1417 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1418 let buffer = cx.new_model(|cx| {
1419 Buffer::new(
1420 0,
1421 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1422 String::new(),
1423 )
1424 });
1425 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1426 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1427 }
1428
1429 pub fn for_buffer(
1430 buffer: Model<Buffer>,
1431 project: Option<Model<Project>>,
1432 cx: &mut ViewContext<Self>,
1433 ) -> Self {
1434 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1435 Self::new(EditorMode::Full, buffer, project, cx)
1436 }
1437
1438 pub fn for_multibuffer(
1439 buffer: Model<MultiBuffer>,
1440 project: Option<Model<Project>>,
1441 cx: &mut ViewContext<Self>,
1442 ) -> Self {
1443 Self::new(EditorMode::Full, buffer, project, cx)
1444 }
1445
1446 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1447 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1448 self.display_map.update(cx, |display_map, cx| {
1449 let snapshot = display_map.snapshot(cx);
1450 clone.display_map.update(cx, |display_map, cx| {
1451 display_map.set_state(&snapshot, cx);
1452 });
1453 });
1454 clone.selections.clone_state(&self.selections);
1455 clone.scroll_manager.clone_state(&self.scroll_manager);
1456 clone.searchable = self.searchable;
1457 clone
1458 }
1459
1460 fn new(
1461 mode: EditorMode,
1462 buffer: Model<MultiBuffer>,
1463 project: Option<Model<Project>>,
1464 cx: &mut ViewContext<Self>,
1465 ) -> Self {
1466 let style = cx.text_style();
1467 let font_size = style.font_size.to_pixels(cx.rem_size());
1468 let display_map = cx.new_model(|cx| {
1469 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1470 });
1471
1472 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1473
1474 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1475
1476 let soft_wrap_mode_override =
1477 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1478
1479 let mut project_subscriptions = Vec::new();
1480 if mode == EditorMode::Full {
1481 if let Some(project) = project.as_ref() {
1482 if buffer.read(cx).is_singleton() {
1483 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1484 cx.emit(EditorEvent::TitleChanged);
1485 }));
1486 }
1487 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1488 if let project::Event::RefreshInlayHints = event {
1489 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1490 };
1491 }));
1492 }
1493 }
1494
1495 let inlay_hint_settings = inlay_hint_settings(
1496 selections.newest_anchor().head(),
1497 &buffer.read(cx).snapshot(cx),
1498 cx,
1499 );
1500
1501 let focus_handle = cx.focus_handle();
1502 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1503 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1504
1505 let mut this = Self {
1506 focus_handle,
1507 buffer: buffer.clone(),
1508 display_map: display_map.clone(),
1509 selections,
1510 scroll_manager: ScrollManager::new(cx),
1511 columnar_selection_tail: None,
1512 add_selections_state: None,
1513 select_next_state: None,
1514 select_prev_state: None,
1515 selection_history: Default::default(),
1516 autoclose_regions: Default::default(),
1517 snippet_stack: Default::default(),
1518 select_larger_syntax_node_stack: Vec::new(),
1519 ime_transaction: Default::default(),
1520 active_diagnostics: None,
1521 soft_wrap_mode_override,
1522 completion_provider: project.clone().map(|project| Box::new(project) as _),
1523 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1524 project,
1525 blink_manager: blink_manager.clone(),
1526 show_local_selections: true,
1527 mode,
1528 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1529 show_gutter: mode == EditorMode::Full,
1530 show_wrap_guides: None,
1531 placeholder_text: None,
1532 highlight_order: 0,
1533 highlighted_rows: HashMap::default(),
1534 background_highlights: Default::default(),
1535 nav_history: None,
1536 context_menu: RwLock::new(None),
1537 mouse_context_menu: None,
1538 completion_tasks: Default::default(),
1539 find_all_references_task_sources: Vec::new(),
1540 next_completion_id: 0,
1541 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1542 next_inlay_id: 0,
1543 available_code_actions: Default::default(),
1544 code_actions_task: Default::default(),
1545 document_highlights_task: Default::default(),
1546 pending_rename: Default::default(),
1547 searchable: true,
1548 cursor_shape: Default::default(),
1549 autoindent_mode: Some(AutoindentMode::EachLine),
1550 collapse_matches: false,
1551 workspace: None,
1552 keymap_context_layers: Default::default(),
1553 input_enabled: true,
1554 use_modal_editing: mode == EditorMode::Full,
1555 read_only: false,
1556 use_autoclose: true,
1557 auto_replace_emoji_shortcode: false,
1558 leader_peer_id: None,
1559 remote_id: None,
1560 hover_state: Default::default(),
1561 hovered_link_state: Default::default(),
1562 copilot_state: Default::default(),
1563 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1564 gutter_hovered: false,
1565 pixel_position_of_newest_cursor: None,
1566 gutter_width: Default::default(),
1567 style: None,
1568 show_cursor_names: false,
1569 hovered_cursors: Default::default(),
1570 editor_actions: Default::default(),
1571 show_copilot_suggestions: mode == EditorMode::Full,
1572 custom_context_menu: None,
1573 _subscriptions: vec![
1574 cx.observe(&buffer, Self::on_buffer_changed),
1575 cx.subscribe(&buffer, Self::on_buffer_event),
1576 cx.observe(&display_map, Self::on_display_map_changed),
1577 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1578 cx.observe_global::<SettingsStore>(Self::settings_changed),
1579 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1580 cx.observe_window_activation(|editor, cx| {
1581 let active = cx.is_window_active();
1582 editor.blink_manager.update(cx, |blink_manager, cx| {
1583 if active {
1584 blink_manager.enable(cx);
1585 } else {
1586 blink_manager.show_cursor(cx);
1587 blink_manager.disable(cx);
1588 }
1589 });
1590 }),
1591 ],
1592 };
1593
1594 this._subscriptions.extend(project_subscriptions);
1595
1596 this.end_selection(cx);
1597 this.scroll_manager.show_scrollbar(cx);
1598
1599 if mode == EditorMode::Full {
1600 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1601 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1602 }
1603
1604 this.report_editor_event("open", None, cx);
1605 this
1606 }
1607
1608 fn key_context(&self, cx: &AppContext) -> KeyContext {
1609 let mut key_context = KeyContext::default();
1610 key_context.add("Editor");
1611 let mode = match self.mode {
1612 EditorMode::SingleLine => "single_line",
1613 EditorMode::AutoHeight { .. } => "auto_height",
1614 EditorMode::Full => "full",
1615 };
1616 key_context.set("mode", mode);
1617 if self.pending_rename.is_some() {
1618 key_context.add("renaming");
1619 }
1620 if self.context_menu_visible() {
1621 match self.context_menu.read().as_ref() {
1622 Some(ContextMenu::Completions(_)) => {
1623 key_context.add("menu");
1624 key_context.add("showing_completions")
1625 }
1626 Some(ContextMenu::CodeActions(_)) => {
1627 key_context.add("menu");
1628 key_context.add("showing_code_actions")
1629 }
1630 None => {}
1631 }
1632 }
1633
1634 for layer in self.keymap_context_layers.values() {
1635 key_context.extend(layer);
1636 }
1637
1638 if let Some(extension) = self
1639 .buffer
1640 .read(cx)
1641 .as_singleton()
1642 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1643 {
1644 key_context.set("extension", extension.to_string());
1645 }
1646
1647 if self.has_active_copilot_suggestion(cx) {
1648 key_context.add("copilot_suggestion");
1649 }
1650
1651 key_context
1652 }
1653
1654 pub fn new_file(
1655 workspace: &mut Workspace,
1656 _: &workspace::NewFile,
1657 cx: &mut ViewContext<Workspace>,
1658 ) {
1659 let project = workspace.project().clone();
1660 if project.read(cx).is_remote() {
1661 cx.propagate();
1662 } else if let Some(buffer) = project
1663 .update(cx, |project, cx| project.create_buffer("", None, cx))
1664 .log_err()
1665 {
1666 workspace.add_item_to_active_pane(
1667 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1668 cx,
1669 );
1670 }
1671 }
1672
1673 pub fn new_file_in_direction(
1674 workspace: &mut Workspace,
1675 action: &workspace::NewFileInDirection,
1676 cx: &mut ViewContext<Workspace>,
1677 ) {
1678 let project = workspace.project().clone();
1679 if project.read(cx).is_remote() {
1680 cx.propagate();
1681 } else if let Some(buffer) = project
1682 .update(cx, |project, cx| project.create_buffer("", None, cx))
1683 .log_err()
1684 {
1685 workspace.split_item(
1686 action.0,
1687 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1688 cx,
1689 );
1690 }
1691 }
1692
1693 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1694 self.buffer.read(cx).replica_id()
1695 }
1696
1697 pub fn leader_peer_id(&self) -> Option<PeerId> {
1698 self.leader_peer_id
1699 }
1700
1701 pub fn buffer(&self) -> &Model<MultiBuffer> {
1702 &self.buffer
1703 }
1704
1705 pub fn workspace(&self) -> Option<View<Workspace>> {
1706 self.workspace.as_ref()?.0.upgrade()
1707 }
1708
1709 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1710 self.buffer().read(cx).title(cx)
1711 }
1712
1713 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1714 EditorSnapshot {
1715 mode: self.mode,
1716 show_gutter: self.show_gutter,
1717 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1718 scroll_anchor: self.scroll_manager.anchor(),
1719 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1720 placeholder_text: self.placeholder_text.clone(),
1721 is_focused: self.focus_handle.is_focused(cx),
1722 }
1723 }
1724
1725 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1726 self.buffer.read(cx).language_at(point, cx)
1727 }
1728
1729 pub fn file_at<T: ToOffset>(
1730 &self,
1731 point: T,
1732 cx: &AppContext,
1733 ) -> Option<Arc<dyn language::File>> {
1734 self.buffer.read(cx).read(cx).file_at(point).cloned()
1735 }
1736
1737 pub fn active_excerpt(
1738 &self,
1739 cx: &AppContext,
1740 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1741 self.buffer
1742 .read(cx)
1743 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1744 }
1745
1746 pub fn mode(&self) -> EditorMode {
1747 self.mode
1748 }
1749
1750 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1751 self.collaboration_hub.as_deref()
1752 }
1753
1754 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1755 self.collaboration_hub = Some(hub);
1756 }
1757
1758 pub fn set_custom_context_menu(
1759 &mut self,
1760 f: impl 'static
1761 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1762 ) {
1763 self.custom_context_menu = Some(Box::new(f))
1764 }
1765
1766 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1767 self.completion_provider = Some(hub);
1768 }
1769
1770 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1771 self.placeholder_text.as_deref()
1772 }
1773
1774 pub fn set_placeholder_text(
1775 &mut self,
1776 placeholder_text: impl Into<Arc<str>>,
1777 cx: &mut ViewContext<Self>,
1778 ) {
1779 let placeholder_text = Some(placeholder_text.into());
1780 if self.placeholder_text != placeholder_text {
1781 self.placeholder_text = placeholder_text;
1782 cx.notify();
1783 }
1784 }
1785
1786 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1787 self.cursor_shape = cursor_shape;
1788 cx.notify();
1789 }
1790
1791 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1792 self.collapse_matches = collapse_matches;
1793 }
1794
1795 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1796 if self.collapse_matches {
1797 return range.start..range.start;
1798 }
1799 range.clone()
1800 }
1801
1802 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1803 if self.display_map.read(cx).clip_at_line_ends != clip {
1804 self.display_map
1805 .update(cx, |map, _| map.clip_at_line_ends = clip);
1806 }
1807 }
1808
1809 pub fn set_keymap_context_layer<Tag: 'static>(
1810 &mut self,
1811 context: KeyContext,
1812 cx: &mut ViewContext<Self>,
1813 ) {
1814 self.keymap_context_layers
1815 .insert(TypeId::of::<Tag>(), context);
1816 cx.notify();
1817 }
1818
1819 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1820 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1821 cx.notify();
1822 }
1823
1824 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1825 self.input_enabled = input_enabled;
1826 }
1827
1828 pub fn set_autoindent(&mut self, autoindent: bool) {
1829 if autoindent {
1830 self.autoindent_mode = Some(AutoindentMode::EachLine);
1831 } else {
1832 self.autoindent_mode = None;
1833 }
1834 }
1835
1836 pub fn read_only(&self, cx: &AppContext) -> bool {
1837 self.read_only || self.buffer.read(cx).read_only()
1838 }
1839
1840 pub fn set_read_only(&mut self, read_only: bool) {
1841 self.read_only = read_only;
1842 }
1843
1844 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1845 self.use_autoclose = autoclose;
1846 }
1847
1848 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1849 self.auto_replace_emoji_shortcode = auto_replace;
1850 }
1851
1852 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1853 self.show_copilot_suggestions = show_copilot_suggestions;
1854 }
1855
1856 pub fn set_use_modal_editing(&mut self, to: bool) {
1857 self.use_modal_editing = to;
1858 }
1859
1860 pub fn use_modal_editing(&self) -> bool {
1861 self.use_modal_editing
1862 }
1863
1864 fn selections_did_change(
1865 &mut self,
1866 local: bool,
1867 old_cursor_position: &Anchor,
1868 cx: &mut ViewContext<Self>,
1869 ) {
1870 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1871 self.buffer.update(cx, |buffer, cx| {
1872 buffer.set_active_selections(
1873 &self.selections.disjoint_anchors(),
1874 self.selections.line_mode,
1875 self.cursor_shape,
1876 cx,
1877 )
1878 });
1879 }
1880
1881 let display_map = self
1882 .display_map
1883 .update(cx, |display_map, cx| display_map.snapshot(cx));
1884 let buffer = &display_map.buffer_snapshot;
1885 self.add_selections_state = None;
1886 self.select_next_state = None;
1887 self.select_prev_state = None;
1888 self.select_larger_syntax_node_stack.clear();
1889 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1890 self.snippet_stack
1891 .invalidate(&self.selections.disjoint_anchors(), buffer);
1892 self.take_rename(false, cx);
1893
1894 let new_cursor_position = self.selections.newest_anchor().head();
1895
1896 self.push_to_nav_history(
1897 *old_cursor_position,
1898 Some(new_cursor_position.to_point(buffer)),
1899 cx,
1900 );
1901
1902 if local {
1903 let new_cursor_position = self.selections.newest_anchor().head();
1904 let mut context_menu = self.context_menu.write();
1905 let completion_menu = match context_menu.as_ref() {
1906 Some(ContextMenu::Completions(menu)) => Some(menu),
1907
1908 _ => {
1909 *context_menu = None;
1910 None
1911 }
1912 };
1913
1914 if let Some(completion_menu) = completion_menu {
1915 let cursor_position = new_cursor_position.to_offset(buffer);
1916 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
1917 if kind == Some(CharKind::Word)
1918 && word_range.to_inclusive().contains(&cursor_position)
1919 {
1920 let mut completion_menu = completion_menu.clone();
1921 drop(context_menu);
1922
1923 let query = Self::completion_query(buffer, cursor_position);
1924 cx.spawn(move |this, mut cx| async move {
1925 completion_menu
1926 .filter(query.as_deref(), cx.background_executor().clone())
1927 .await;
1928
1929 this.update(&mut cx, |this, cx| {
1930 let mut context_menu = this.context_menu.write();
1931 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1932 return;
1933 };
1934
1935 if menu.id > completion_menu.id {
1936 return;
1937 }
1938
1939 *context_menu = Some(ContextMenu::Completions(completion_menu));
1940 drop(context_menu);
1941 cx.notify();
1942 })
1943 })
1944 .detach();
1945
1946 self.show_completions(&ShowCompletions, cx);
1947 } else {
1948 drop(context_menu);
1949 self.hide_context_menu(cx);
1950 }
1951 } else {
1952 drop(context_menu);
1953 }
1954
1955 hide_hover(self, cx);
1956
1957 if old_cursor_position.to_display_point(&display_map).row()
1958 != new_cursor_position.to_display_point(&display_map).row()
1959 {
1960 self.available_code_actions.take();
1961 }
1962 self.refresh_code_actions(cx);
1963 self.refresh_document_highlights(cx);
1964 refresh_matching_bracket_highlights(self, cx);
1965 self.discard_copilot_suggestion(cx);
1966 }
1967
1968 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1969 cx.emit(EditorEvent::SelectionsChanged { local });
1970
1971 if self.selections.disjoint_anchors().len() == 1 {
1972 cx.emit(SearchEvent::ActiveMatchChanged)
1973 }
1974
1975 cx.notify();
1976 }
1977
1978 pub fn change_selections<R>(
1979 &mut self,
1980 autoscroll: Option<Autoscroll>,
1981 cx: &mut ViewContext<Self>,
1982 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1983 ) -> R {
1984 let old_cursor_position = self.selections.newest_anchor().head();
1985 self.push_to_selection_history();
1986
1987 let (changed, result) = self.selections.change_with(cx, change);
1988
1989 if changed {
1990 if let Some(autoscroll) = autoscroll {
1991 self.request_autoscroll(autoscroll, cx);
1992 }
1993 self.selections_did_change(true, &old_cursor_position, cx);
1994 }
1995
1996 result
1997 }
1998
1999 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2000 where
2001 I: IntoIterator<Item = (Range<S>, T)>,
2002 S: ToOffset,
2003 T: Into<Arc<str>>,
2004 {
2005 if self.read_only(cx) {
2006 return;
2007 }
2008
2009 self.buffer
2010 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2011 }
2012
2013 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2014 where
2015 I: IntoIterator<Item = (Range<S>, T)>,
2016 S: ToOffset,
2017 T: Into<Arc<str>>,
2018 {
2019 if self.read_only(cx) {
2020 return;
2021 }
2022
2023 self.buffer.update(cx, |buffer, cx| {
2024 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2025 });
2026 }
2027
2028 pub fn edit_with_block_indent<I, S, T>(
2029 &mut self,
2030 edits: I,
2031 original_indent_columns: Vec<u32>,
2032 cx: &mut ViewContext<Self>,
2033 ) where
2034 I: IntoIterator<Item = (Range<S>, T)>,
2035 S: ToOffset,
2036 T: Into<Arc<str>>,
2037 {
2038 if self.read_only(cx) {
2039 return;
2040 }
2041
2042 self.buffer.update(cx, |buffer, cx| {
2043 buffer.edit(
2044 edits,
2045 Some(AutoindentMode::Block {
2046 original_indent_columns,
2047 }),
2048 cx,
2049 )
2050 });
2051 }
2052
2053 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2054 self.hide_context_menu(cx);
2055
2056 match phase {
2057 SelectPhase::Begin {
2058 position,
2059 add,
2060 click_count,
2061 } => self.begin_selection(position, add, click_count, cx),
2062 SelectPhase::BeginColumnar {
2063 position,
2064 goal_column,
2065 } => self.begin_columnar_selection(position, goal_column, cx),
2066 SelectPhase::Extend {
2067 position,
2068 click_count,
2069 } => self.extend_selection(position, click_count, cx),
2070 SelectPhase::Update {
2071 position,
2072 goal_column,
2073 scroll_delta,
2074 } => self.update_selection(position, goal_column, scroll_delta, cx),
2075 SelectPhase::End => self.end_selection(cx),
2076 }
2077 }
2078
2079 fn extend_selection(
2080 &mut self,
2081 position: DisplayPoint,
2082 click_count: usize,
2083 cx: &mut ViewContext<Self>,
2084 ) {
2085 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2086 let tail = self.selections.newest::<usize>(cx).tail();
2087 self.begin_selection(position, false, click_count, cx);
2088
2089 let position = position.to_offset(&display_map, Bias::Left);
2090 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2091
2092 let mut pending_selection = self
2093 .selections
2094 .pending_anchor()
2095 .expect("extend_selection not called with pending selection");
2096 if position >= tail {
2097 pending_selection.start = tail_anchor;
2098 } else {
2099 pending_selection.end = tail_anchor;
2100 pending_selection.reversed = true;
2101 }
2102
2103 let mut pending_mode = self.selections.pending_mode().unwrap();
2104 match &mut pending_mode {
2105 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2106 _ => {}
2107 }
2108
2109 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2110 s.set_pending(pending_selection, pending_mode)
2111 });
2112 }
2113
2114 fn begin_selection(
2115 &mut self,
2116 position: DisplayPoint,
2117 add: bool,
2118 click_count: usize,
2119 cx: &mut ViewContext<Self>,
2120 ) {
2121 if !self.focus_handle.is_focused(cx) {
2122 cx.focus(&self.focus_handle);
2123 }
2124
2125 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2126 let buffer = &display_map.buffer_snapshot;
2127 let newest_selection = self.selections.newest_anchor().clone();
2128 let position = display_map.clip_point(position, Bias::Left);
2129
2130 let start;
2131 let end;
2132 let mode;
2133 let auto_scroll;
2134 match click_count {
2135 1 => {
2136 start = buffer.anchor_before(position.to_point(&display_map));
2137 end = start;
2138 mode = SelectMode::Character;
2139 auto_scroll = true;
2140 }
2141 2 => {
2142 let range = movement::surrounding_word(&display_map, position);
2143 start = buffer.anchor_before(range.start.to_point(&display_map));
2144 end = buffer.anchor_before(range.end.to_point(&display_map));
2145 mode = SelectMode::Word(start..end);
2146 auto_scroll = true;
2147 }
2148 3 => {
2149 let position = display_map
2150 .clip_point(position, Bias::Left)
2151 .to_point(&display_map);
2152 let line_start = display_map.prev_line_boundary(position).0;
2153 let next_line_start = buffer.clip_point(
2154 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2155 Bias::Left,
2156 );
2157 start = buffer.anchor_before(line_start);
2158 end = buffer.anchor_before(next_line_start);
2159 mode = SelectMode::Line(start..end);
2160 auto_scroll = true;
2161 }
2162 _ => {
2163 start = buffer.anchor_before(0);
2164 end = buffer.anchor_before(buffer.len());
2165 mode = SelectMode::All;
2166 auto_scroll = false;
2167 }
2168 }
2169
2170 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2171 if !add {
2172 s.clear_disjoint();
2173 } else if click_count > 1 {
2174 s.delete(newest_selection.id)
2175 }
2176
2177 s.set_pending_anchor_range(start..end, mode);
2178 });
2179 }
2180
2181 fn begin_columnar_selection(
2182 &mut self,
2183 position: DisplayPoint,
2184 goal_column: u32,
2185 cx: &mut ViewContext<Self>,
2186 ) {
2187 if !self.focus_handle.is_focused(cx) {
2188 cx.focus(&self.focus_handle);
2189 }
2190
2191 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2192 let tail = self.selections.newest::<Point>(cx).tail();
2193 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2194
2195 self.select_columns(
2196 tail.to_display_point(&display_map),
2197 position,
2198 goal_column,
2199 &display_map,
2200 cx,
2201 );
2202 }
2203
2204 fn update_selection(
2205 &mut self,
2206 position: DisplayPoint,
2207 goal_column: u32,
2208 scroll_delta: gpui::Point<f32>,
2209 cx: &mut ViewContext<Self>,
2210 ) {
2211 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2212
2213 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2214 let tail = tail.to_display_point(&display_map);
2215 self.select_columns(tail, position, goal_column, &display_map, cx);
2216 } else if let Some(mut pending) = self.selections.pending_anchor() {
2217 let buffer = self.buffer.read(cx).snapshot(cx);
2218 let head;
2219 let tail;
2220 let mode = self.selections.pending_mode().unwrap();
2221 match &mode {
2222 SelectMode::Character => {
2223 head = position.to_point(&display_map);
2224 tail = pending.tail().to_point(&buffer);
2225 }
2226 SelectMode::Word(original_range) => {
2227 let original_display_range = original_range.start.to_display_point(&display_map)
2228 ..original_range.end.to_display_point(&display_map);
2229 let original_buffer_range = original_display_range.start.to_point(&display_map)
2230 ..original_display_range.end.to_point(&display_map);
2231 if movement::is_inside_word(&display_map, position)
2232 || original_display_range.contains(&position)
2233 {
2234 let word_range = movement::surrounding_word(&display_map, position);
2235 if word_range.start < original_display_range.start {
2236 head = word_range.start.to_point(&display_map);
2237 } else {
2238 head = word_range.end.to_point(&display_map);
2239 }
2240 } else {
2241 head = position.to_point(&display_map);
2242 }
2243
2244 if head <= original_buffer_range.start {
2245 tail = original_buffer_range.end;
2246 } else {
2247 tail = original_buffer_range.start;
2248 }
2249 }
2250 SelectMode::Line(original_range) => {
2251 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2252
2253 let position = display_map
2254 .clip_point(position, Bias::Left)
2255 .to_point(&display_map);
2256 let line_start = display_map.prev_line_boundary(position).0;
2257 let next_line_start = buffer.clip_point(
2258 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2259 Bias::Left,
2260 );
2261
2262 if line_start < original_range.start {
2263 head = line_start
2264 } else {
2265 head = next_line_start
2266 }
2267
2268 if head <= original_range.start {
2269 tail = original_range.end;
2270 } else {
2271 tail = original_range.start;
2272 }
2273 }
2274 SelectMode::All => {
2275 return;
2276 }
2277 };
2278
2279 if head < tail {
2280 pending.start = buffer.anchor_before(head);
2281 pending.end = buffer.anchor_before(tail);
2282 pending.reversed = true;
2283 } else {
2284 pending.start = buffer.anchor_before(tail);
2285 pending.end = buffer.anchor_before(head);
2286 pending.reversed = false;
2287 }
2288
2289 self.change_selections(None, cx, |s| {
2290 s.set_pending(pending, mode);
2291 });
2292 } else {
2293 log::error!("update_selection dispatched with no pending selection");
2294 return;
2295 }
2296
2297 self.apply_scroll_delta(scroll_delta, cx);
2298 cx.notify();
2299 }
2300
2301 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2302 self.columnar_selection_tail.take();
2303 if self.selections.pending_anchor().is_some() {
2304 let selections = self.selections.all::<usize>(cx);
2305 self.change_selections(None, cx, |s| {
2306 s.select(selections);
2307 s.clear_pending();
2308 });
2309 }
2310 }
2311
2312 fn select_columns(
2313 &mut self,
2314 tail: DisplayPoint,
2315 head: DisplayPoint,
2316 goal_column: u32,
2317 display_map: &DisplaySnapshot,
2318 cx: &mut ViewContext<Self>,
2319 ) {
2320 let start_row = cmp::min(tail.row(), head.row());
2321 let end_row = cmp::max(tail.row(), head.row());
2322 let start_column = cmp::min(tail.column(), goal_column);
2323 let end_column = cmp::max(tail.column(), goal_column);
2324 let reversed = start_column < tail.column();
2325
2326 let selection_ranges = (start_row..=end_row)
2327 .filter_map(|row| {
2328 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2329 let start = display_map
2330 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2331 .to_point(display_map);
2332 let end = display_map
2333 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2334 .to_point(display_map);
2335 if reversed {
2336 Some(end..start)
2337 } else {
2338 Some(start..end)
2339 }
2340 } else {
2341 None
2342 }
2343 })
2344 .collect::<Vec<_>>();
2345
2346 self.change_selections(None, cx, |s| {
2347 s.select_ranges(selection_ranges);
2348 });
2349 cx.notify();
2350 }
2351
2352 pub fn has_pending_nonempty_selection(&self) -> bool {
2353 let pending_nonempty_selection = match self.selections.pending_anchor() {
2354 Some(Selection { start, end, .. }) => start != end,
2355 None => false,
2356 };
2357 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2358 }
2359
2360 pub fn has_pending_selection(&self) -> bool {
2361 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2362 }
2363
2364 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2365 if self.dismiss_menus_and_popups(cx) {
2366 return;
2367 }
2368
2369 if self.mode == EditorMode::Full {
2370 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2371 return;
2372 }
2373 }
2374
2375 cx.propagate();
2376 }
2377
2378 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2379 if self.take_rename(false, cx).is_some() {
2380 return true;
2381 }
2382
2383 if hide_hover(self, cx) {
2384 return true;
2385 }
2386
2387 if self.hide_context_menu(cx).is_some() {
2388 return true;
2389 }
2390
2391 if self.discard_copilot_suggestion(cx) {
2392 return true;
2393 }
2394
2395 if self.snippet_stack.pop().is_some() {
2396 return true;
2397 }
2398
2399 if self.mode == EditorMode::Full {
2400 if self.active_diagnostics.is_some() {
2401 self.dismiss_diagnostics(cx);
2402 return true;
2403 }
2404 }
2405
2406 false
2407 }
2408
2409 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2410 let text: Arc<str> = text.into();
2411
2412 if self.read_only(cx) {
2413 return;
2414 }
2415
2416 let selections = self.selections.all_adjusted(cx);
2417 let mut brace_inserted = false;
2418 let mut edits = Vec::new();
2419 let mut new_selections = Vec::with_capacity(selections.len());
2420 let mut new_autoclose_regions = Vec::new();
2421 let snapshot = self.buffer.read(cx).read(cx);
2422
2423 for (selection, autoclose_region) in
2424 self.selections_with_autoclose_regions(selections, &snapshot)
2425 {
2426 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2427 // Determine if the inserted text matches the opening or closing
2428 // bracket of any of this language's bracket pairs.
2429 let mut bracket_pair = None;
2430 let mut is_bracket_pair_start = false;
2431 if !text.is_empty() {
2432 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2433 // and they are removing the character that triggered IME popup.
2434 for (pair, enabled) in scope.brackets() {
2435 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2436 bracket_pair = Some(pair.clone());
2437 is_bracket_pair_start = true;
2438 break;
2439 } else if pair.end.as_str() == text.as_ref() {
2440 bracket_pair = Some(pair.clone());
2441 break;
2442 }
2443 }
2444 }
2445
2446 if let Some(bracket_pair) = bracket_pair {
2447 if selection.is_empty() {
2448 if is_bracket_pair_start {
2449 let prefix_len = bracket_pair.start.len() - text.len();
2450
2451 // If the inserted text is a suffix of an opening bracket and the
2452 // selection is preceded by the rest of the opening bracket, then
2453 // insert the closing bracket.
2454 let following_text_allows_autoclose = snapshot
2455 .chars_at(selection.start)
2456 .next()
2457 .map_or(true, |c| scope.should_autoclose_before(c));
2458 let preceding_text_matches_prefix = prefix_len == 0
2459 || (selection.start.column >= (prefix_len as u32)
2460 && snapshot.contains_str_at(
2461 Point::new(
2462 selection.start.row,
2463 selection.start.column - (prefix_len as u32),
2464 ),
2465 &bracket_pair.start[..prefix_len],
2466 ));
2467 let autoclose = self.use_autoclose
2468 && snapshot.settings_at(selection.start, cx).use_autoclose;
2469 if autoclose
2470 && following_text_allows_autoclose
2471 && preceding_text_matches_prefix
2472 {
2473 let anchor = snapshot.anchor_before(selection.end);
2474 new_selections.push((selection.map(|_| anchor), text.len()));
2475 new_autoclose_regions.push((
2476 anchor,
2477 text.len(),
2478 selection.id,
2479 bracket_pair.clone(),
2480 ));
2481 edits.push((
2482 selection.range(),
2483 format!("{}{}", text, bracket_pair.end).into(),
2484 ));
2485 brace_inserted = true;
2486 continue;
2487 }
2488 }
2489
2490 if let Some(region) = autoclose_region {
2491 // If the selection is followed by an auto-inserted closing bracket,
2492 // then don't insert that closing bracket again; just move the selection
2493 // past the closing bracket.
2494 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2495 && text.as_ref() == region.pair.end.as_str();
2496 if should_skip {
2497 let anchor = snapshot.anchor_after(selection.end);
2498 new_selections
2499 .push((selection.map(|_| anchor), region.pair.end.len()));
2500 continue;
2501 }
2502 }
2503 }
2504 // If an opening bracket is 1 character long and is typed while
2505 // text is selected, then surround that text with the bracket pair.
2506 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2507 edits.push((selection.start..selection.start, text.clone()));
2508 edits.push((
2509 selection.end..selection.end,
2510 bracket_pair.end.as_str().into(),
2511 ));
2512 brace_inserted = true;
2513 new_selections.push((
2514 Selection {
2515 id: selection.id,
2516 start: snapshot.anchor_after(selection.start),
2517 end: snapshot.anchor_before(selection.end),
2518 reversed: selection.reversed,
2519 goal: selection.goal,
2520 },
2521 0,
2522 ));
2523 continue;
2524 }
2525 }
2526 }
2527
2528 if self.auto_replace_emoji_shortcode
2529 && selection.is_empty()
2530 && text.as_ref().ends_with(':')
2531 {
2532 if let Some(possible_emoji_short_code) =
2533 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2534 {
2535 if !possible_emoji_short_code.is_empty() {
2536 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2537 let emoji_shortcode_start = Point::new(
2538 selection.start.row,
2539 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2540 );
2541
2542 // Remove shortcode from buffer
2543 edits.push((
2544 emoji_shortcode_start..selection.start,
2545 "".to_string().into(),
2546 ));
2547 new_selections.push((
2548 Selection {
2549 id: selection.id,
2550 start: snapshot.anchor_after(emoji_shortcode_start),
2551 end: snapshot.anchor_before(selection.start),
2552 reversed: selection.reversed,
2553 goal: selection.goal,
2554 },
2555 0,
2556 ));
2557
2558 // Insert emoji
2559 let selection_start_anchor = snapshot.anchor_after(selection.start);
2560 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2561 edits.push((selection.start..selection.end, emoji.to_string().into()));
2562
2563 continue;
2564 }
2565 }
2566 }
2567 }
2568
2569 // If not handling any auto-close operation, then just replace the selected
2570 // text with the given input and move the selection to the end of the
2571 // newly inserted text.
2572 let anchor = snapshot.anchor_after(selection.end);
2573 new_selections.push((selection.map(|_| anchor), 0));
2574 edits.push((selection.start..selection.end, text.clone()));
2575 }
2576
2577 drop(snapshot);
2578 self.transact(cx, |this, cx| {
2579 this.buffer.update(cx, |buffer, cx| {
2580 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2581 });
2582
2583 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2584 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2585 let snapshot = this.buffer.read(cx).read(cx);
2586 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2587 .zip(new_selection_deltas)
2588 .map(|(selection, delta)| Selection {
2589 id: selection.id,
2590 start: selection.start + delta,
2591 end: selection.end + delta,
2592 reversed: selection.reversed,
2593 goal: SelectionGoal::None,
2594 })
2595 .collect::<Vec<_>>();
2596
2597 let mut i = 0;
2598 for (position, delta, selection_id, pair) in new_autoclose_regions {
2599 let position = position.to_offset(&snapshot) + delta;
2600 let start = snapshot.anchor_before(position);
2601 let end = snapshot.anchor_after(position);
2602 while let Some(existing_state) = this.autoclose_regions.get(i) {
2603 match existing_state.range.start.cmp(&start, &snapshot) {
2604 Ordering::Less => i += 1,
2605 Ordering::Greater => break,
2606 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2607 Ordering::Less => i += 1,
2608 Ordering::Equal => break,
2609 Ordering::Greater => break,
2610 },
2611 }
2612 }
2613 this.autoclose_regions.insert(
2614 i,
2615 AutocloseRegion {
2616 selection_id,
2617 range: start..end,
2618 pair,
2619 },
2620 );
2621 }
2622
2623 drop(snapshot);
2624 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2625 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2626
2627 if brace_inserted {
2628 // If we inserted a brace while composing text (i.e. typing `"` on a
2629 // Brazilian keyboard), exit the composing state because most likely
2630 // the user wanted to surround the selection.
2631 this.unmark_text(cx);
2632 } else if EditorSettings::get_global(cx).use_on_type_format {
2633 if let Some(on_type_format_task) =
2634 this.trigger_on_type_formatting(text.to_string(), cx)
2635 {
2636 on_type_format_task.detach_and_log_err(cx);
2637 }
2638 }
2639
2640 if had_active_copilot_suggestion {
2641 this.refresh_copilot_suggestions(true, cx);
2642 if !this.has_active_copilot_suggestion(cx) {
2643 this.trigger_completion_on_input(&text, cx);
2644 }
2645 } else {
2646 this.trigger_completion_on_input(&text, cx);
2647 this.refresh_copilot_suggestions(true, cx);
2648 }
2649 });
2650 }
2651
2652 fn find_possible_emoji_shortcode_at_position(
2653 snapshot: &MultiBufferSnapshot,
2654 position: Point,
2655 ) -> Option<String> {
2656 let mut chars = Vec::new();
2657 let mut found_colon = false;
2658 for char in snapshot.reversed_chars_at(position).take(100) {
2659 // Found a possible emoji shortcode in the middle of the buffer
2660 if found_colon {
2661 if char.is_whitespace() {
2662 chars.reverse();
2663 return Some(chars.iter().collect());
2664 }
2665 // If the previous character is not a whitespace, we are in the middle of a word
2666 // and we only want to complete the shortcode if the word is made up of other emojis
2667 let mut containing_word = String::new();
2668 for ch in snapshot
2669 .reversed_chars_at(position)
2670 .skip(chars.len() + 1)
2671 .take(100)
2672 {
2673 if ch.is_whitespace() {
2674 break;
2675 }
2676 containing_word.push(ch);
2677 }
2678 let containing_word = containing_word.chars().rev().collect::<String>();
2679 if util::word_consists_of_emojis(containing_word.as_str()) {
2680 chars.reverse();
2681 return Some(chars.iter().collect());
2682 }
2683 }
2684
2685 if char.is_whitespace() || !char.is_ascii() {
2686 return None;
2687 }
2688 if char == ':' {
2689 found_colon = true;
2690 } else {
2691 chars.push(char);
2692 }
2693 }
2694 // Found a possible emoji shortcode at the beginning of the buffer
2695 chars.reverse();
2696 Some(chars.iter().collect())
2697 }
2698
2699 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2700 self.transact(cx, |this, cx| {
2701 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2702 let selections = this.selections.all::<usize>(cx);
2703 let multi_buffer = this.buffer.read(cx);
2704 let buffer = multi_buffer.snapshot(cx);
2705 selections
2706 .iter()
2707 .map(|selection| {
2708 let start_point = selection.start.to_point(&buffer);
2709 let mut indent = buffer.indent_size_for_line(start_point.row);
2710 indent.len = cmp::min(indent.len, start_point.column);
2711 let start = selection.start;
2712 let end = selection.end;
2713 let is_cursor = start == end;
2714 let language_scope = buffer.language_scope_at(start);
2715 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2716 &language_scope
2717 {
2718 let leading_whitespace_len = buffer
2719 .reversed_chars_at(start)
2720 .take_while(|c| c.is_whitespace() && *c != '\n')
2721 .map(|c| c.len_utf8())
2722 .sum::<usize>();
2723
2724 let trailing_whitespace_len = buffer
2725 .chars_at(end)
2726 .take_while(|c| c.is_whitespace() && *c != '\n')
2727 .map(|c| c.len_utf8())
2728 .sum::<usize>();
2729
2730 let insert_extra_newline =
2731 language.brackets().any(|(pair, enabled)| {
2732 let pair_start = pair.start.trim_end();
2733 let pair_end = pair.end.trim_start();
2734
2735 enabled
2736 && pair.newline
2737 && buffer.contains_str_at(
2738 end + trailing_whitespace_len,
2739 pair_end,
2740 )
2741 && buffer.contains_str_at(
2742 (start - leading_whitespace_len)
2743 .saturating_sub(pair_start.len()),
2744 pair_start,
2745 )
2746 });
2747 // Comment extension on newline is allowed only for cursor selections
2748 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2749 let is_comment_extension_enabled =
2750 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2751 is_cursor && is_comment_extension_enabled
2752 });
2753 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2754 let max_len_of_delimiter =
2755 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2756 let (snapshot, range) =
2757 buffer.buffer_line_for_row(start_point.row)?;
2758
2759 let mut index_of_first_non_whitespace = 0;
2760 let comment_candidate = snapshot
2761 .chars_for_range(range)
2762 .skip_while(|c| {
2763 let should_skip = c.is_whitespace();
2764 if should_skip {
2765 index_of_first_non_whitespace += 1;
2766 }
2767 should_skip
2768 })
2769 .take(max_len_of_delimiter)
2770 .collect::<String>();
2771 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2772 comment_candidate.starts_with(comment_prefix.as_ref())
2773 })?;
2774 let cursor_is_placed_after_comment_marker =
2775 index_of_first_non_whitespace + comment_prefix.len()
2776 <= start_point.column as usize;
2777 if cursor_is_placed_after_comment_marker {
2778 Some(comment_prefix.clone())
2779 } else {
2780 None
2781 }
2782 };
2783 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2784 get_comment_delimiter(delimiters)
2785 } else {
2786 None
2787 };
2788 (comment_delimiter, insert_extra_newline)
2789 } else {
2790 (None, false)
2791 };
2792
2793 let capacity_for_delimiter = comment_delimiter
2794 .as_deref()
2795 .map(str::len)
2796 .unwrap_or_default();
2797 let mut new_text =
2798 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2799 new_text.push_str("\n");
2800 new_text.extend(indent.chars());
2801 if let Some(delimiter) = &comment_delimiter {
2802 new_text.push_str(&delimiter);
2803 }
2804 if insert_extra_newline {
2805 new_text = new_text.repeat(2);
2806 }
2807
2808 let anchor = buffer.anchor_after(end);
2809 let new_selection = selection.map(|_| anchor);
2810 (
2811 (start..end, new_text),
2812 (insert_extra_newline, new_selection),
2813 )
2814 })
2815 .unzip()
2816 };
2817
2818 this.edit_with_autoindent(edits, cx);
2819 let buffer = this.buffer.read(cx).snapshot(cx);
2820 let new_selections = selection_fixup_info
2821 .into_iter()
2822 .map(|(extra_newline_inserted, new_selection)| {
2823 let mut cursor = new_selection.end.to_point(&buffer);
2824 if extra_newline_inserted {
2825 cursor.row -= 1;
2826 cursor.column = buffer.line_len(cursor.row);
2827 }
2828 new_selection.map(|_| cursor)
2829 })
2830 .collect();
2831
2832 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2833 this.refresh_copilot_suggestions(true, cx);
2834 });
2835 }
2836
2837 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2838 let buffer = self.buffer.read(cx);
2839 let snapshot = buffer.snapshot(cx);
2840
2841 let mut edits = Vec::new();
2842 let mut rows = Vec::new();
2843
2844 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
2845 let cursor = selection.head();
2846 let row = cursor.row;
2847
2848 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2849
2850 let newline = "\n".to_string();
2851 edits.push((start_of_line..start_of_line, newline));
2852
2853 rows.push(row + rows_inserted as u32);
2854 }
2855
2856 self.transact(cx, |editor, cx| {
2857 editor.edit(edits, cx);
2858
2859 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2860 let mut index = 0;
2861 s.move_cursors_with(|map, _, _| {
2862 let row = rows[index];
2863 index += 1;
2864
2865 let point = Point::new(row, 0);
2866 let boundary = map.next_line_boundary(point).1;
2867 let clipped = map.clip_point(boundary, Bias::Left);
2868
2869 (clipped, SelectionGoal::None)
2870 });
2871 });
2872
2873 let mut indent_edits = Vec::new();
2874 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2875 for row in rows {
2876 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2877 for (row, indent) in indents {
2878 if indent.len == 0 {
2879 continue;
2880 }
2881
2882 let text = match indent.kind {
2883 IndentKind::Space => " ".repeat(indent.len as usize),
2884 IndentKind::Tab => "\t".repeat(indent.len as usize),
2885 };
2886 let point = Point::new(row, 0);
2887 indent_edits.push((point..point, text));
2888 }
2889 }
2890 editor.edit(indent_edits, cx);
2891 });
2892 }
2893
2894 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2895 let buffer = self.buffer.read(cx);
2896 let snapshot = buffer.snapshot(cx);
2897
2898 let mut edits = Vec::new();
2899 let mut rows = Vec::new();
2900 let mut rows_inserted = 0;
2901
2902 for selection in self.selections.all_adjusted(cx) {
2903 let cursor = selection.head();
2904 let row = cursor.row;
2905
2906 let point = Point::new(row + 1, 0);
2907 let start_of_line = snapshot.clip_point(point, Bias::Left);
2908
2909 let newline = "\n".to_string();
2910 edits.push((start_of_line..start_of_line, newline));
2911
2912 rows_inserted += 1;
2913 rows.push(row + rows_inserted);
2914 }
2915
2916 self.transact(cx, |editor, cx| {
2917 editor.edit(edits, cx);
2918
2919 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2920 let mut index = 0;
2921 s.move_cursors_with(|map, _, _| {
2922 let row = rows[index];
2923 index += 1;
2924
2925 let point = Point::new(row, 0);
2926 let boundary = map.next_line_boundary(point).1;
2927 let clipped = map.clip_point(boundary, Bias::Left);
2928
2929 (clipped, SelectionGoal::None)
2930 });
2931 });
2932
2933 let mut indent_edits = Vec::new();
2934 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2935 for row in rows {
2936 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2937 for (row, indent) in indents {
2938 if indent.len == 0 {
2939 continue;
2940 }
2941
2942 let text = match indent.kind {
2943 IndentKind::Space => " ".repeat(indent.len as usize),
2944 IndentKind::Tab => "\t".repeat(indent.len as usize),
2945 };
2946 let point = Point::new(row, 0);
2947 indent_edits.push((point..point, text));
2948 }
2949 }
2950 editor.edit(indent_edits, cx);
2951 });
2952 }
2953
2954 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2955 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
2956 original_indent_columns: Vec::new(),
2957 });
2958 self.insert_with_autoindent_mode(text, autoindent, cx);
2959 }
2960
2961 fn insert_with_autoindent_mode(
2962 &mut self,
2963 text: &str,
2964 autoindent_mode: Option<AutoindentMode>,
2965 cx: &mut ViewContext<Self>,
2966 ) {
2967 if self.read_only(cx) {
2968 return;
2969 }
2970
2971 let text: Arc<str> = text.into();
2972 self.transact(cx, |this, cx| {
2973 let old_selections = this.selections.all_adjusted(cx);
2974 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2975 let anchors = {
2976 let snapshot = buffer.read(cx);
2977 old_selections
2978 .iter()
2979 .map(|s| {
2980 let anchor = snapshot.anchor_after(s.head());
2981 s.map(|_| anchor)
2982 })
2983 .collect::<Vec<_>>()
2984 };
2985 buffer.edit(
2986 old_selections
2987 .iter()
2988 .map(|s| (s.start..s.end, text.clone())),
2989 autoindent_mode,
2990 cx,
2991 );
2992 anchors
2993 });
2994
2995 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2996 s.select_anchors(selection_anchors);
2997 })
2998 });
2999 }
3000
3001 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3002 if !EditorSettings::get_global(cx).show_completions_on_input {
3003 return;
3004 }
3005
3006 let selection = self.selections.newest_anchor();
3007 if self
3008 .buffer
3009 .read(cx)
3010 .is_completion_trigger(selection.head(), text, cx)
3011 {
3012 self.show_completions(&ShowCompletions, cx);
3013 } else {
3014 self.hide_context_menu(cx);
3015 }
3016 }
3017
3018 /// If any empty selections is touching the start of its innermost containing autoclose
3019 /// region, expand it to select the brackets.
3020 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3021 let selections = self.selections.all::<usize>(cx);
3022 let buffer = self.buffer.read(cx).read(cx);
3023 let mut new_selections = Vec::new();
3024 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
3025 if let (Some(region), true) = (region, selection.is_empty()) {
3026 let mut range = region.range.to_offset(&buffer);
3027 if selection.start == range.start {
3028 if range.start >= region.pair.start.len() {
3029 range.start -= region.pair.start.len();
3030 if buffer.contains_str_at(range.start, ®ion.pair.start) {
3031 if buffer.contains_str_at(range.end, ®ion.pair.end) {
3032 range.end += region.pair.end.len();
3033 selection.start = range.start;
3034 selection.end = range.end;
3035 }
3036 }
3037 }
3038 }
3039 }
3040 new_selections.push(selection);
3041 }
3042
3043 drop(buffer);
3044 self.change_selections(None, cx, |selections| selections.select(new_selections));
3045 }
3046
3047 /// Iterate the given selections, and for each one, find the smallest surrounding
3048 /// autoclose region. This uses the ordering of the selections and the autoclose
3049 /// regions to avoid repeated comparisons.
3050 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3051 &'a self,
3052 selections: impl IntoIterator<Item = Selection<D>>,
3053 buffer: &'a MultiBufferSnapshot,
3054 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3055 let mut i = 0;
3056 let mut regions = self.autoclose_regions.as_slice();
3057 selections.into_iter().map(move |selection| {
3058 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3059
3060 let mut enclosing = None;
3061 while let Some(pair_state) = regions.get(i) {
3062 if pair_state.range.end.to_offset(buffer) < range.start {
3063 regions = ®ions[i + 1..];
3064 i = 0;
3065 } else if pair_state.range.start.to_offset(buffer) > range.end {
3066 break;
3067 } else {
3068 if pair_state.selection_id == selection.id {
3069 enclosing = Some(pair_state);
3070 }
3071 i += 1;
3072 }
3073 }
3074
3075 (selection.clone(), enclosing)
3076 })
3077 }
3078
3079 /// Remove any autoclose regions that no longer contain their selection.
3080 fn invalidate_autoclose_regions(
3081 &mut self,
3082 mut selections: &[Selection<Anchor>],
3083 buffer: &MultiBufferSnapshot,
3084 ) {
3085 self.autoclose_regions.retain(|state| {
3086 let mut i = 0;
3087 while let Some(selection) = selections.get(i) {
3088 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3089 selections = &selections[1..];
3090 continue;
3091 }
3092 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3093 break;
3094 }
3095 if selection.id == state.selection_id {
3096 return true;
3097 } else {
3098 i += 1;
3099 }
3100 }
3101 false
3102 });
3103 }
3104
3105 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3106 let offset = position.to_offset(buffer);
3107 let (word_range, kind) = buffer.surrounding_word(offset);
3108 if offset > word_range.start && kind == Some(CharKind::Word) {
3109 Some(
3110 buffer
3111 .text_for_range(word_range.start..offset)
3112 .collect::<String>(),
3113 )
3114 } else {
3115 None
3116 }
3117 }
3118
3119 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3120 self.refresh_inlay_hints(
3121 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3122 cx,
3123 );
3124 }
3125
3126 pub fn inlay_hints_enabled(&self) -> bool {
3127 self.inlay_hint_cache.enabled
3128 }
3129
3130 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3131 if self.project.is_none() || self.mode != EditorMode::Full {
3132 return;
3133 }
3134
3135 let reason_description = reason.description();
3136 let ignore_debounce = matches!(
3137 reason,
3138 InlayHintRefreshReason::SettingsChange(_)
3139 | InlayHintRefreshReason::Toggle(_)
3140 | InlayHintRefreshReason::ExcerptsRemoved(_)
3141 );
3142 let (invalidate_cache, required_languages) = match reason {
3143 InlayHintRefreshReason::Toggle(enabled) => {
3144 self.inlay_hint_cache.enabled = enabled;
3145 if enabled {
3146 (InvalidationStrategy::RefreshRequested, None)
3147 } else {
3148 self.inlay_hint_cache.clear();
3149 self.splice_inlays(
3150 self.visible_inlay_hints(cx)
3151 .iter()
3152 .map(|inlay| inlay.id)
3153 .collect(),
3154 Vec::new(),
3155 cx,
3156 );
3157 return;
3158 }
3159 }
3160 InlayHintRefreshReason::SettingsChange(new_settings) => {
3161 match self.inlay_hint_cache.update_settings(
3162 &self.buffer,
3163 new_settings,
3164 self.visible_inlay_hints(cx),
3165 cx,
3166 ) {
3167 ControlFlow::Break(Some(InlaySplice {
3168 to_remove,
3169 to_insert,
3170 })) => {
3171 self.splice_inlays(to_remove, to_insert, cx);
3172 return;
3173 }
3174 ControlFlow::Break(None) => return,
3175 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3176 }
3177 }
3178 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3179 if let Some(InlaySplice {
3180 to_remove,
3181 to_insert,
3182 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3183 {
3184 self.splice_inlays(to_remove, to_insert, cx);
3185 }
3186 return;
3187 }
3188 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3189 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3190 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3191 }
3192 InlayHintRefreshReason::RefreshRequested => {
3193 (InvalidationStrategy::RefreshRequested, None)
3194 }
3195 };
3196
3197 if let Some(InlaySplice {
3198 to_remove,
3199 to_insert,
3200 }) = self.inlay_hint_cache.spawn_hint_refresh(
3201 reason_description,
3202 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3203 invalidate_cache,
3204 ignore_debounce,
3205 cx,
3206 ) {
3207 self.splice_inlays(to_remove, to_insert, cx);
3208 }
3209 }
3210
3211 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3212 self.display_map
3213 .read(cx)
3214 .current_inlays()
3215 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3216 .cloned()
3217 .collect()
3218 }
3219
3220 pub fn excerpts_for_inlay_hints_query(
3221 &self,
3222 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3223 cx: &mut ViewContext<Editor>,
3224 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3225 let Some(project) = self.project.as_ref() else {
3226 return HashMap::default();
3227 };
3228 let project = project.read(cx);
3229 let multi_buffer = self.buffer().read(cx);
3230 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3231 let multi_buffer_visible_start = self
3232 .scroll_manager
3233 .anchor()
3234 .anchor
3235 .to_point(&multi_buffer_snapshot);
3236 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3237 multi_buffer_visible_start
3238 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3239 Bias::Left,
3240 );
3241 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3242 multi_buffer
3243 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3244 .into_iter()
3245 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3246 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3247 let buffer = buffer_handle.read(cx);
3248 let buffer_file = project::File::from_dyn(buffer.file())?;
3249 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3250 let worktree_entry = buffer_worktree
3251 .read(cx)
3252 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3253 if worktree_entry.is_ignored {
3254 return None;
3255 }
3256
3257 let language = buffer.language()?;
3258 if let Some(restrict_to_languages) = restrict_to_languages {
3259 if !restrict_to_languages.contains(language) {
3260 return None;
3261 }
3262 }
3263 Some((
3264 excerpt_id,
3265 (
3266 buffer_handle,
3267 buffer.version().clone(),
3268 excerpt_visible_range,
3269 ),
3270 ))
3271 })
3272 .collect()
3273 }
3274
3275 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3276 TextLayoutDetails {
3277 text_system: cx.text_system().clone(),
3278 editor_style: self.style.clone().unwrap(),
3279 rem_size: cx.rem_size(),
3280 scroll_anchor: self.scroll_manager.anchor(),
3281 visible_rows: self.visible_line_count(),
3282 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3283 }
3284 }
3285
3286 fn splice_inlays(
3287 &self,
3288 to_remove: Vec<InlayId>,
3289 to_insert: Vec<Inlay>,
3290 cx: &mut ViewContext<Self>,
3291 ) {
3292 self.display_map.update(cx, |display_map, cx| {
3293 display_map.splice_inlays(to_remove, to_insert, cx);
3294 });
3295 cx.notify();
3296 }
3297
3298 fn trigger_on_type_formatting(
3299 &self,
3300 input: String,
3301 cx: &mut ViewContext<Self>,
3302 ) -> Option<Task<Result<()>>> {
3303 if input.len() != 1 {
3304 return None;
3305 }
3306
3307 let project = self.project.as_ref()?;
3308 let position = self.selections.newest_anchor().head();
3309 let (buffer, buffer_position) = self
3310 .buffer
3311 .read(cx)
3312 .text_anchor_for_position(position, cx)?;
3313
3314 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3315 // hence we do LSP request & edit on host side only — add formats to host's history.
3316 let push_to_lsp_host_history = true;
3317 // If this is not the host, append its history with new edits.
3318 let push_to_client_history = project.read(cx).is_remote();
3319
3320 let on_type_formatting = project.update(cx, |project, cx| {
3321 project.on_type_format(
3322 buffer.clone(),
3323 buffer_position,
3324 input,
3325 push_to_lsp_host_history,
3326 cx,
3327 )
3328 });
3329 Some(cx.spawn(|editor, mut cx| async move {
3330 if let Some(transaction) = on_type_formatting.await? {
3331 if push_to_client_history {
3332 buffer
3333 .update(&mut cx, |buffer, _| {
3334 buffer.push_transaction(transaction, Instant::now());
3335 })
3336 .ok();
3337 }
3338 editor.update(&mut cx, |editor, cx| {
3339 editor.refresh_document_highlights(cx);
3340 })?;
3341 }
3342 Ok(())
3343 }))
3344 }
3345
3346 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3347 if self.pending_rename.is_some() {
3348 return;
3349 }
3350
3351 let Some(provider) = self.completion_provider.as_ref() else {
3352 return;
3353 };
3354
3355 let position = self.selections.newest_anchor().head();
3356 let (buffer, buffer_position) =
3357 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3358 output
3359 } else {
3360 return;
3361 };
3362
3363 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3364 let completions = provider.completions(&buffer, buffer_position, cx);
3365
3366 let id = post_inc(&mut self.next_completion_id);
3367 let task = cx.spawn(|this, mut cx| {
3368 async move {
3369 let completions = completions.await.log_err();
3370 let menu = if let Some(completions) = completions {
3371 let mut menu = CompletionsMenu {
3372 id,
3373 initial_position: position,
3374 match_candidates: completions
3375 .iter()
3376 .enumerate()
3377 .map(|(id, completion)| {
3378 StringMatchCandidate::new(
3379 id,
3380 completion.label.text[completion.label.filter_range.clone()]
3381 .into(),
3382 )
3383 })
3384 .collect(),
3385 buffer,
3386 completions: Arc::new(RwLock::new(completions.into())),
3387 matches: Vec::new().into(),
3388 selected_item: 0,
3389 scroll_handle: UniformListScrollHandle::new(),
3390 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3391 DebouncedDelay::new(),
3392 )),
3393 };
3394 menu.filter(query.as_deref(), cx.background_executor().clone())
3395 .await;
3396
3397 if menu.matches.is_empty() {
3398 None
3399 } else {
3400 this.update(&mut cx, |editor, cx| {
3401 let completions = menu.completions.clone();
3402 let matches = menu.matches.clone();
3403
3404 let delay_ms = EditorSettings::get_global(cx)
3405 .completion_documentation_secondary_query_debounce;
3406 let delay = Duration::from_millis(delay_ms);
3407
3408 editor
3409 .completion_documentation_pre_resolve_debounce
3410 .fire_new(delay, cx, |editor, cx| {
3411 CompletionsMenu::pre_resolve_completion_documentation(
3412 completions,
3413 matches,
3414 editor,
3415 cx,
3416 )
3417 });
3418 })
3419 .ok();
3420 Some(menu)
3421 }
3422 } else {
3423 None
3424 };
3425
3426 this.update(&mut cx, |this, cx| {
3427 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3428
3429 let mut context_menu = this.context_menu.write();
3430 match context_menu.as_ref() {
3431 None => {}
3432
3433 Some(ContextMenu::Completions(prev_menu)) => {
3434 if prev_menu.id > id {
3435 return;
3436 }
3437 }
3438
3439 _ => return,
3440 }
3441
3442 if this.focus_handle.is_focused(cx) && menu.is_some() {
3443 let menu = menu.unwrap();
3444 *context_menu = Some(ContextMenu::Completions(menu));
3445 drop(context_menu);
3446 this.discard_copilot_suggestion(cx);
3447 cx.notify();
3448 } else if this.completion_tasks.len() <= 1 {
3449 // If there are no more completion tasks and the last menu was
3450 // empty, we should hide it. If it was already hidden, we should
3451 // also show the copilot suggestion when available.
3452 drop(context_menu);
3453 if this.hide_context_menu(cx).is_none() {
3454 this.update_visible_copilot_suggestion(cx);
3455 }
3456 }
3457 })?;
3458
3459 Ok::<_, anyhow::Error>(())
3460 }
3461 .log_err()
3462 });
3463
3464 self.completion_tasks.push((id, task));
3465 }
3466
3467 pub fn confirm_completion(
3468 &mut self,
3469 action: &ConfirmCompletion,
3470 cx: &mut ViewContext<Self>,
3471 ) -> Option<Task<Result<()>>> {
3472 use language::ToOffset as _;
3473
3474 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3475 menu
3476 } else {
3477 return None;
3478 };
3479
3480 let mat = completions_menu
3481 .matches
3482 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3483 let buffer_handle = completions_menu.buffer;
3484 let completions = completions_menu.completions.read();
3485 let completion = completions.get(mat.candidate_id)?;
3486 cx.stop_propagation();
3487
3488 let snippet;
3489 let text;
3490 if completion.is_snippet() {
3491 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3492 text = snippet.as_ref().unwrap().text.clone();
3493 } else {
3494 snippet = None;
3495 text = completion.new_text.clone();
3496 };
3497 let selections = self.selections.all::<usize>(cx);
3498 let buffer = buffer_handle.read(cx);
3499 let old_range = completion.old_range.to_offset(buffer);
3500 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3501
3502 let newest_selection = self.selections.newest_anchor();
3503 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3504 return None;
3505 }
3506
3507 let lookbehind = newest_selection
3508 .start
3509 .text_anchor
3510 .to_offset(buffer)
3511 .saturating_sub(old_range.start);
3512 let lookahead = old_range
3513 .end
3514 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3515 let mut common_prefix_len = old_text
3516 .bytes()
3517 .zip(text.bytes())
3518 .take_while(|(a, b)| a == b)
3519 .count();
3520
3521 let snapshot = self.buffer.read(cx).snapshot(cx);
3522 let mut range_to_replace: Option<Range<isize>> = None;
3523 let mut ranges = Vec::new();
3524 for selection in &selections {
3525 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3526 let start = selection.start.saturating_sub(lookbehind);
3527 let end = selection.end + lookahead;
3528 if selection.id == newest_selection.id {
3529 range_to_replace = Some(
3530 ((start + common_prefix_len) as isize - selection.start as isize)
3531 ..(end as isize - selection.start as isize),
3532 );
3533 }
3534 ranges.push(start + common_prefix_len..end);
3535 } else {
3536 common_prefix_len = 0;
3537 ranges.clear();
3538 ranges.extend(selections.iter().map(|s| {
3539 if s.id == newest_selection.id {
3540 range_to_replace = Some(
3541 old_range.start.to_offset_utf16(&snapshot).0 as isize
3542 - selection.start as isize
3543 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3544 - selection.start as isize,
3545 );
3546 old_range.clone()
3547 } else {
3548 s.start..s.end
3549 }
3550 }));
3551 break;
3552 }
3553 }
3554 let text = &text[common_prefix_len..];
3555
3556 cx.emit(EditorEvent::InputHandled {
3557 utf16_range_to_replace: range_to_replace,
3558 text: text.into(),
3559 });
3560
3561 self.transact(cx, |this, cx| {
3562 if let Some(mut snippet) = snippet {
3563 snippet.text = text.to_string();
3564 for tabstop in snippet.tabstops.iter_mut().flatten() {
3565 tabstop.start -= common_prefix_len as isize;
3566 tabstop.end -= common_prefix_len as isize;
3567 }
3568
3569 this.insert_snippet(&ranges, snippet, cx).log_err();
3570 } else {
3571 this.buffer.update(cx, |buffer, cx| {
3572 buffer.edit(
3573 ranges.iter().map(|range| (range.clone(), text)),
3574 this.autoindent_mode.clone(),
3575 cx,
3576 );
3577 });
3578 }
3579
3580 this.refresh_copilot_suggestions(true, cx);
3581 });
3582
3583 let provider = self.completion_provider.as_ref()?;
3584 let apply_edits = provider.apply_additional_edits_for_completion(
3585 buffer_handle,
3586 completion.clone(),
3587 true,
3588 cx,
3589 );
3590 Some(cx.foreground_executor().spawn(async move {
3591 apply_edits.await?;
3592 Ok(())
3593 }))
3594 }
3595
3596 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3597 let mut context_menu = self.context_menu.write();
3598 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3599 *context_menu = None;
3600 cx.notify();
3601 return;
3602 }
3603 drop(context_menu);
3604
3605 let deployed_from_indicator = action.deployed_from_indicator;
3606 let mut task = self.code_actions_task.take();
3607 cx.spawn(|this, mut cx| async move {
3608 while let Some(prev_task) = task {
3609 prev_task.await;
3610 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3611 }
3612
3613 this.update(&mut cx, |this, cx| {
3614 if this.focus_handle.is_focused(cx) {
3615 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3616 this.completion_tasks.clear();
3617 this.discard_copilot_suggestion(cx);
3618 *this.context_menu.write() =
3619 Some(ContextMenu::CodeActions(CodeActionsMenu {
3620 buffer,
3621 actions,
3622 selected_item: Default::default(),
3623 scroll_handle: UniformListScrollHandle::default(),
3624 deployed_from_indicator,
3625 }));
3626 cx.notify();
3627 }
3628 }
3629 })?;
3630
3631 Ok::<_, anyhow::Error>(())
3632 })
3633 .detach_and_log_err(cx);
3634 }
3635
3636 pub fn confirm_code_action(
3637 &mut self,
3638 action: &ConfirmCodeAction,
3639 cx: &mut ViewContext<Self>,
3640 ) -> Option<Task<Result<()>>> {
3641 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3642 menu
3643 } else {
3644 return None;
3645 };
3646 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3647 let action = actions_menu.actions.get(action_ix)?.clone();
3648 let title = action.lsp_action.title.clone();
3649 let buffer = actions_menu.buffer;
3650 let workspace = self.workspace()?;
3651
3652 let apply_code_actions = workspace
3653 .read(cx)
3654 .project()
3655 .clone()
3656 .update(cx, |project, cx| {
3657 project.apply_code_action(buffer, action, true, cx)
3658 });
3659 let workspace = workspace.downgrade();
3660 Some(cx.spawn(|editor, cx| async move {
3661 let project_transaction = apply_code_actions.await?;
3662 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3663 }))
3664 }
3665
3666 async fn open_project_transaction(
3667 this: &WeakView<Editor>,
3668 workspace: WeakView<Workspace>,
3669 transaction: ProjectTransaction,
3670 title: String,
3671 mut cx: AsyncWindowContext,
3672 ) -> Result<()> {
3673 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3674
3675 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3676 cx.update(|cx| {
3677 entries.sort_unstable_by_key(|(buffer, _)| {
3678 buffer.read(cx).file().map(|f| f.path().clone())
3679 });
3680 })?;
3681
3682 // If the project transaction's edits are all contained within this editor, then
3683 // avoid opening a new editor to display them.
3684
3685 if let Some((buffer, transaction)) = entries.first() {
3686 if entries.len() == 1 {
3687 let excerpt = this.update(&mut cx, |editor, cx| {
3688 editor
3689 .buffer()
3690 .read(cx)
3691 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3692 })?;
3693 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3694 if excerpted_buffer == *buffer {
3695 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3696 let excerpt_range = excerpt_range.to_offset(buffer);
3697 buffer
3698 .edited_ranges_for_transaction::<usize>(transaction)
3699 .all(|range| {
3700 excerpt_range.start <= range.start
3701 && excerpt_range.end >= range.end
3702 })
3703 })?;
3704
3705 if all_edits_within_excerpt {
3706 return Ok(());
3707 }
3708 }
3709 }
3710 }
3711 } else {
3712 return Ok(());
3713 }
3714
3715 let mut ranges_to_highlight = Vec::new();
3716 let excerpt_buffer = cx.new_model(|cx| {
3717 let mut multibuffer =
3718 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3719 for (buffer_handle, transaction) in &entries {
3720 let buffer = buffer_handle.read(cx);
3721 ranges_to_highlight.extend(
3722 multibuffer.push_excerpts_with_context_lines(
3723 buffer_handle.clone(),
3724 buffer
3725 .edited_ranges_for_transaction::<usize>(transaction)
3726 .collect(),
3727 1,
3728 cx,
3729 ),
3730 );
3731 }
3732 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3733 multibuffer
3734 })?;
3735
3736 workspace.update(&mut cx, |workspace, cx| {
3737 let project = workspace.project().clone();
3738 let editor =
3739 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3740 workspace.add_item_to_active_pane(Box::new(editor.clone()), cx);
3741 editor.update(cx, |editor, cx| {
3742 editor.highlight_background::<Self>(
3743 ranges_to_highlight,
3744 |theme| theme.editor_highlighted_line_background,
3745 cx,
3746 );
3747 });
3748 })?;
3749
3750 Ok(())
3751 }
3752
3753 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3754 let project = self.project.clone()?;
3755 let buffer = self.buffer.read(cx);
3756 let newest_selection = self.selections.newest_anchor().clone();
3757 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3758 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3759 if start_buffer != end_buffer {
3760 return None;
3761 }
3762
3763 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3764 cx.background_executor()
3765 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3766 .await;
3767
3768 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3769 project.code_actions(&start_buffer, start..end, cx)
3770 }) {
3771 code_actions.await.log_err()
3772 } else {
3773 None
3774 };
3775
3776 this.update(&mut cx, |this, cx| {
3777 this.available_code_actions = actions.and_then(|actions| {
3778 if actions.is_empty() {
3779 None
3780 } else {
3781 Some((start_buffer, actions.into()))
3782 }
3783 });
3784 cx.notify();
3785 })
3786 .log_err();
3787 }));
3788 None
3789 }
3790
3791 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3792 if self.pending_rename.is_some() {
3793 return None;
3794 }
3795
3796 let project = self.project.clone()?;
3797 let buffer = self.buffer.read(cx);
3798 let newest_selection = self.selections.newest_anchor().clone();
3799 let cursor_position = newest_selection.head();
3800 let (cursor_buffer, cursor_buffer_position) =
3801 buffer.text_anchor_for_position(cursor_position, cx)?;
3802 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3803 if cursor_buffer != tail_buffer {
3804 return None;
3805 }
3806
3807 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3808 cx.background_executor()
3809 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3810 .await;
3811
3812 let highlights = if let Some(highlights) = project
3813 .update(&mut cx, |project, cx| {
3814 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3815 })
3816 .log_err()
3817 {
3818 highlights.await.log_err()
3819 } else {
3820 None
3821 };
3822
3823 if let Some(highlights) = highlights {
3824 this.update(&mut cx, |this, cx| {
3825 if this.pending_rename.is_some() {
3826 return;
3827 }
3828
3829 let buffer_id = cursor_position.buffer_id;
3830 let buffer = this.buffer.read(cx);
3831 if !buffer
3832 .text_anchor_for_position(cursor_position, cx)
3833 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3834 {
3835 return;
3836 }
3837
3838 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3839 let mut write_ranges = Vec::new();
3840 let mut read_ranges = Vec::new();
3841 for highlight in highlights {
3842 for (excerpt_id, excerpt_range) in
3843 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3844 {
3845 let start = highlight
3846 .range
3847 .start
3848 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3849 let end = highlight
3850 .range
3851 .end
3852 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3853 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3854 continue;
3855 }
3856
3857 let range = Anchor {
3858 buffer_id,
3859 excerpt_id: excerpt_id,
3860 text_anchor: start,
3861 }..Anchor {
3862 buffer_id,
3863 excerpt_id,
3864 text_anchor: end,
3865 };
3866 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3867 write_ranges.push(range);
3868 } else {
3869 read_ranges.push(range);
3870 }
3871 }
3872 }
3873
3874 this.highlight_background::<DocumentHighlightRead>(
3875 read_ranges,
3876 |theme| theme.editor_document_highlight_read_background,
3877 cx,
3878 );
3879 this.highlight_background::<DocumentHighlightWrite>(
3880 write_ranges,
3881 |theme| theme.editor_document_highlight_write_background,
3882 cx,
3883 );
3884 cx.notify();
3885 })
3886 .log_err();
3887 }
3888 }));
3889 None
3890 }
3891
3892 fn refresh_copilot_suggestions(
3893 &mut self,
3894 debounce: bool,
3895 cx: &mut ViewContext<Self>,
3896 ) -> Option<()> {
3897 let copilot = Copilot::global(cx)?;
3898 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3899 self.clear_copilot_suggestions(cx);
3900 return None;
3901 }
3902 self.update_visible_copilot_suggestion(cx);
3903
3904 let snapshot = self.buffer.read(cx).snapshot(cx);
3905 let cursor = self.selections.newest_anchor().head();
3906 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3907 self.clear_copilot_suggestions(cx);
3908 return None;
3909 }
3910
3911 let (buffer, buffer_position) =
3912 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3913 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3914 if debounce {
3915 cx.background_executor()
3916 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3917 .await;
3918 }
3919
3920 let completions = copilot
3921 .update(&mut cx, |copilot, cx| {
3922 copilot.completions(&buffer, buffer_position, cx)
3923 })
3924 .log_err()
3925 .unwrap_or(Task::ready(Ok(Vec::new())))
3926 .await
3927 .log_err()
3928 .into_iter()
3929 .flatten()
3930 .collect_vec();
3931
3932 this.update(&mut cx, |this, cx| {
3933 if !completions.is_empty() {
3934 this.copilot_state.cycled = false;
3935 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3936 this.copilot_state.completions.clear();
3937 this.copilot_state.active_completion_index = 0;
3938 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3939 for completion in completions {
3940 this.copilot_state.push_completion(completion);
3941 }
3942 this.update_visible_copilot_suggestion(cx);
3943 }
3944 })
3945 .log_err()?;
3946 Some(())
3947 });
3948
3949 Some(())
3950 }
3951
3952 fn cycle_copilot_suggestions(
3953 &mut self,
3954 direction: Direction,
3955 cx: &mut ViewContext<Self>,
3956 ) -> Option<()> {
3957 let copilot = Copilot::global(cx)?;
3958 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3959 return None;
3960 }
3961
3962 if self.copilot_state.cycled {
3963 self.copilot_state.cycle_completions(direction);
3964 self.update_visible_copilot_suggestion(cx);
3965 } else {
3966 let cursor = self.selections.newest_anchor().head();
3967 let (buffer, buffer_position) =
3968 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3969 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3970 let completions = copilot
3971 .update(&mut cx, |copilot, cx| {
3972 copilot.completions_cycling(&buffer, buffer_position, cx)
3973 })
3974 .log_err()?
3975 .await;
3976
3977 this.update(&mut cx, |this, cx| {
3978 this.copilot_state.cycled = true;
3979 for completion in completions.log_err().into_iter().flatten() {
3980 this.copilot_state.push_completion(completion);
3981 }
3982 this.copilot_state.cycle_completions(direction);
3983 this.update_visible_copilot_suggestion(cx);
3984 })
3985 .log_err()?;
3986
3987 Some(())
3988 });
3989 }
3990
3991 Some(())
3992 }
3993
3994 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3995 if !self.has_active_copilot_suggestion(cx) {
3996 self.refresh_copilot_suggestions(false, cx);
3997 return;
3998 }
3999
4000 self.update_visible_copilot_suggestion(cx);
4001 }
4002
4003 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4004 self.show_cursor_names(cx);
4005 }
4006
4007 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4008 self.show_cursor_names = true;
4009 cx.notify();
4010 cx.spawn(|this, mut cx| async move {
4011 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4012 this.update(&mut cx, |this, cx| {
4013 this.show_cursor_names = false;
4014 cx.notify()
4015 })
4016 .ok()
4017 })
4018 .detach();
4019 }
4020
4021 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
4022 if self.has_active_copilot_suggestion(cx) {
4023 self.cycle_copilot_suggestions(Direction::Next, cx);
4024 } else {
4025 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
4026 if is_copilot_disabled {
4027 cx.propagate();
4028 }
4029 }
4030 }
4031
4032 fn previous_copilot_suggestion(
4033 &mut self,
4034 _: &copilot::PreviousSuggestion,
4035 cx: &mut ViewContext<Self>,
4036 ) {
4037 if self.has_active_copilot_suggestion(cx) {
4038 self.cycle_copilot_suggestions(Direction::Prev, cx);
4039 } else {
4040 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
4041 if is_copilot_disabled {
4042 cx.propagate();
4043 }
4044 }
4045 }
4046
4047 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4048 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4049 if let Some((copilot, completion)) =
4050 Copilot::global(cx).zip(self.copilot_state.active_completion())
4051 {
4052 copilot
4053 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
4054 .detach_and_log_err(cx);
4055
4056 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
4057 }
4058 cx.emit(EditorEvent::InputHandled {
4059 utf16_range_to_replace: None,
4060 text: suggestion.text.to_string().into(),
4061 });
4062 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
4063 cx.notify();
4064 true
4065 } else {
4066 false
4067 }
4068 }
4069
4070 fn accept_partial_copilot_suggestion(
4071 &mut self,
4072 _: &AcceptPartialCopilotSuggestion,
4073 cx: &mut ViewContext<Self>,
4074 ) {
4075 if self.selections.count() == 1 && self.has_active_copilot_suggestion(cx) {
4076 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4077 let mut partial_suggestion = suggestion
4078 .text
4079 .chars()
4080 .by_ref()
4081 .take_while(|c| c.is_alphabetic())
4082 .collect::<String>();
4083 if partial_suggestion.is_empty() {
4084 partial_suggestion = suggestion
4085 .text
4086 .chars()
4087 .by_ref()
4088 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4089 .collect::<String>();
4090 }
4091
4092 cx.emit(EditorEvent::InputHandled {
4093 utf16_range_to_replace: None,
4094 text: partial_suggestion.clone().into(),
4095 });
4096 self.insert_with_autoindent_mode(&partial_suggestion, None, cx);
4097 self.refresh_copilot_suggestions(true, cx);
4098 cx.notify();
4099 }
4100 }
4101 }
4102
4103 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4104 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4105 if let Some(copilot) = Copilot::global(cx) {
4106 copilot
4107 .update(cx, |copilot, cx| {
4108 copilot.discard_completions(&self.copilot_state.completions, cx)
4109 })
4110 .detach_and_log_err(cx);
4111
4112 self.report_copilot_event(None, false, cx)
4113 }
4114
4115 self.display_map.update(cx, |map, cx| {
4116 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
4117 });
4118 cx.notify();
4119 true
4120 } else {
4121 false
4122 }
4123 }
4124
4125 fn is_copilot_enabled_at(
4126 &self,
4127 location: Anchor,
4128 snapshot: &MultiBufferSnapshot,
4129 cx: &mut ViewContext<Self>,
4130 ) -> bool {
4131 let file = snapshot.file_at(location);
4132 let language = snapshot.language_at(location);
4133 let settings = all_language_settings(file, cx);
4134 self.show_copilot_suggestions
4135 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
4136 }
4137
4138 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
4139 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
4140 let buffer = self.buffer.read(cx).read(cx);
4141 suggestion.position.is_valid(&buffer)
4142 } else {
4143 false
4144 }
4145 }
4146
4147 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4148 let suggestion = self.copilot_state.suggestion.take()?;
4149 self.display_map.update(cx, |map, cx| {
4150 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
4151 });
4152 let buffer = self.buffer.read(cx).read(cx);
4153
4154 if suggestion.position.is_valid(&buffer) {
4155 Some(suggestion)
4156 } else {
4157 None
4158 }
4159 }
4160
4161 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
4162 let snapshot = self.buffer.read(cx).snapshot(cx);
4163 let selection = self.selections.newest_anchor();
4164 let cursor = selection.head();
4165
4166 if self.context_menu.read().is_some()
4167 || !self.completion_tasks.is_empty()
4168 || selection.start != selection.end
4169 {
4170 self.discard_copilot_suggestion(cx);
4171 } else if let Some(text) = self
4172 .copilot_state
4173 .text_for_active_completion(cursor, &snapshot)
4174 {
4175 let text = Rope::from(text);
4176 let mut to_remove = Vec::new();
4177 if let Some(suggestion) = self.copilot_state.suggestion.take() {
4178 to_remove.push(suggestion.id);
4179 }
4180
4181 let suggestion_inlay =
4182 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4183 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
4184 self.display_map.update(cx, move |map, cx| {
4185 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
4186 });
4187 cx.notify();
4188 } else {
4189 self.discard_copilot_suggestion(cx);
4190 }
4191 }
4192
4193 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
4194 if let Some(old_suggestion) = self.copilot_state.suggestion.take() {
4195 self.splice_inlays(vec![old_suggestion.id], Vec::new(), cx);
4196 }
4197 self.copilot_state = CopilotState::default();
4198 self.discard_copilot_suggestion(cx);
4199 }
4200
4201 pub fn render_code_actions_indicator(
4202 &self,
4203 _style: &EditorStyle,
4204 is_active: bool,
4205 cx: &mut ViewContext<Self>,
4206 ) -> Option<IconButton> {
4207 if self.available_code_actions.is_some() {
4208 Some(
4209 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4210 .icon_size(IconSize::XSmall)
4211 .size(ui::ButtonSize::None)
4212 .icon_color(Color::Muted)
4213 .selected(is_active)
4214 .on_click(cx.listener(|editor, _e, cx| {
4215 editor.toggle_code_actions(
4216 &ToggleCodeActions {
4217 deployed_from_indicator: true,
4218 },
4219 cx,
4220 );
4221 })),
4222 )
4223 } else {
4224 None
4225 }
4226 }
4227
4228 pub fn render_fold_indicators(
4229 &mut self,
4230 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4231 _style: &EditorStyle,
4232 gutter_hovered: bool,
4233 _line_height: Pixels,
4234 _gutter_margin: Pixels,
4235 cx: &mut ViewContext<Self>,
4236 ) -> Vec<Option<AnyElement>> {
4237 fold_data
4238 .iter()
4239 .enumerate()
4240 .map(|(ix, fold_data)| {
4241 fold_data
4242 .map(|(fold_status, buffer_row, active)| {
4243 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4244 IconButton::new(ix, ui::IconName::ChevronDown)
4245 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4246 FoldStatus::Folded => {
4247 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4248 }
4249 FoldStatus::Foldable => {
4250 this.fold_at(&FoldAt { buffer_row }, cx);
4251 }
4252 }))
4253 .icon_color(ui::Color::Muted)
4254 .icon_size(ui::IconSize::Small)
4255 .selected(fold_status == FoldStatus::Folded)
4256 .selected_icon(ui::IconName::ChevronRight)
4257 .size(ui::ButtonSize::None)
4258 .into_any_element()
4259 })
4260 })
4261 .flatten()
4262 })
4263 .collect()
4264 }
4265
4266 pub fn context_menu_visible(&self) -> bool {
4267 self.context_menu
4268 .read()
4269 .as_ref()
4270 .map_or(false, |menu| menu.visible())
4271 }
4272
4273 pub fn render_context_menu(
4274 &self,
4275 cursor_position: DisplayPoint,
4276 style: &EditorStyle,
4277 max_height: Pixels,
4278 cx: &mut ViewContext<Editor>,
4279 ) -> Option<(DisplayPoint, AnyElement)> {
4280 self.context_menu.read().as_ref().map(|menu| {
4281 menu.render(
4282 cursor_position,
4283 style,
4284 max_height,
4285 self.workspace.as_ref().map(|(w, _)| w.clone()),
4286 cx,
4287 )
4288 })
4289 }
4290
4291 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4292 cx.notify();
4293 self.completion_tasks.clear();
4294 let context_menu = self.context_menu.write().take();
4295 if context_menu.is_some() {
4296 self.update_visible_copilot_suggestion(cx);
4297 }
4298 context_menu
4299 }
4300
4301 pub fn insert_snippet(
4302 &mut self,
4303 insertion_ranges: &[Range<usize>],
4304 snippet: Snippet,
4305 cx: &mut ViewContext<Self>,
4306 ) -> Result<()> {
4307 let tabstops = self.buffer.update(cx, |buffer, cx| {
4308 let snippet_text: Arc<str> = snippet.text.clone().into();
4309 buffer.edit(
4310 insertion_ranges
4311 .iter()
4312 .cloned()
4313 .map(|range| (range, snippet_text.clone())),
4314 Some(AutoindentMode::EachLine),
4315 cx,
4316 );
4317
4318 let snapshot = &*buffer.read(cx);
4319 let snippet = &snippet;
4320 snippet
4321 .tabstops
4322 .iter()
4323 .map(|tabstop| {
4324 let mut tabstop_ranges = tabstop
4325 .iter()
4326 .flat_map(|tabstop_range| {
4327 let mut delta = 0_isize;
4328 insertion_ranges.iter().map(move |insertion_range| {
4329 let insertion_start = insertion_range.start as isize + delta;
4330 delta +=
4331 snippet.text.len() as isize - insertion_range.len() as isize;
4332
4333 let start = snapshot.anchor_before(
4334 (insertion_start + tabstop_range.start) as usize,
4335 );
4336 let end = snapshot
4337 .anchor_after((insertion_start + tabstop_range.end) as usize);
4338 start..end
4339 })
4340 })
4341 .collect::<Vec<_>>();
4342 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4343 tabstop_ranges
4344 })
4345 .collect::<Vec<_>>()
4346 });
4347
4348 if let Some(tabstop) = tabstops.first() {
4349 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4350 s.select_ranges(tabstop.iter().cloned());
4351 });
4352 self.snippet_stack.push(SnippetState {
4353 active_index: 0,
4354 ranges: tabstops,
4355 });
4356
4357 // Check whether the just-entered snippet ends with an auto-closable bracket.
4358 if self.autoclose_regions.is_empty() {
4359 let snapshot = self.buffer.read(cx).snapshot(cx);
4360 for selection in &mut self.selections.all::<Point>(cx) {
4361 let selection_head = selection.head();
4362 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4363 continue;
4364 };
4365
4366 let mut bracket_pair = None;
4367 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4368 let prev_chars = snapshot
4369 .reversed_chars_at(selection_head)
4370 .collect::<String>();
4371 for (pair, enabled) in scope.brackets() {
4372 if enabled
4373 && pair.close
4374 && prev_chars.starts_with(pair.start.as_str())
4375 && next_chars.starts_with(pair.end.as_str())
4376 {
4377 bracket_pair = Some(pair.clone());
4378 break;
4379 }
4380 }
4381 if let Some(pair) = bracket_pair {
4382 let start = snapshot.anchor_after(selection_head);
4383 let end = snapshot.anchor_after(selection_head);
4384 self.autoclose_regions.push(AutocloseRegion {
4385 selection_id: selection.id,
4386 range: start..end,
4387 pair,
4388 });
4389 }
4390 }
4391 }
4392 }
4393 Ok(())
4394 }
4395
4396 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4397 self.move_to_snippet_tabstop(Bias::Right, cx)
4398 }
4399
4400 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4401 self.move_to_snippet_tabstop(Bias::Left, cx)
4402 }
4403
4404 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4405 if let Some(mut snippet) = self.snippet_stack.pop() {
4406 match bias {
4407 Bias::Left => {
4408 if snippet.active_index > 0 {
4409 snippet.active_index -= 1;
4410 } else {
4411 self.snippet_stack.push(snippet);
4412 return false;
4413 }
4414 }
4415 Bias::Right => {
4416 if snippet.active_index + 1 < snippet.ranges.len() {
4417 snippet.active_index += 1;
4418 } else {
4419 self.snippet_stack.push(snippet);
4420 return false;
4421 }
4422 }
4423 }
4424 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4425 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4426 s.select_anchor_ranges(current_ranges.iter().cloned())
4427 });
4428 // If snippet state is not at the last tabstop, push it back on the stack
4429 if snippet.active_index + 1 < snippet.ranges.len() {
4430 self.snippet_stack.push(snippet);
4431 }
4432 return true;
4433 }
4434 }
4435
4436 false
4437 }
4438
4439 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4440 self.transact(cx, |this, cx| {
4441 this.select_all(&SelectAll, cx);
4442 this.insert("", cx);
4443 });
4444 }
4445
4446 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4447 self.transact(cx, |this, cx| {
4448 this.select_autoclose_pair(cx);
4449 let mut selections = this.selections.all::<Point>(cx);
4450 if !this.selections.line_mode {
4451 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4452 for selection in &mut selections {
4453 if selection.is_empty() {
4454 let old_head = selection.head();
4455 let mut new_head =
4456 movement::left(&display_map, old_head.to_display_point(&display_map))
4457 .to_point(&display_map);
4458 if let Some((buffer, line_buffer_range)) = display_map
4459 .buffer_snapshot
4460 .buffer_line_for_row(old_head.row)
4461 {
4462 let indent_size =
4463 buffer.indent_size_for_line(line_buffer_range.start.row);
4464 let indent_len = match indent_size.kind {
4465 IndentKind::Space => {
4466 buffer.settings_at(line_buffer_range.start, cx).tab_size
4467 }
4468 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4469 };
4470 if old_head.column <= indent_size.len && old_head.column > 0 {
4471 let indent_len = indent_len.get();
4472 new_head = cmp::min(
4473 new_head,
4474 Point::new(
4475 old_head.row,
4476 ((old_head.column - 1) / indent_len) * indent_len,
4477 ),
4478 );
4479 }
4480 }
4481
4482 selection.set_head(new_head, SelectionGoal::None);
4483 }
4484 }
4485 }
4486
4487 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4488 this.insert("", cx);
4489 this.refresh_copilot_suggestions(true, cx);
4490 });
4491 }
4492
4493 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4494 self.transact(cx, |this, cx| {
4495 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4496 let line_mode = s.line_mode;
4497 s.move_with(|map, selection| {
4498 if selection.is_empty() && !line_mode {
4499 let cursor = movement::right(map, selection.head());
4500 selection.end = cursor;
4501 selection.reversed = true;
4502 selection.goal = SelectionGoal::None;
4503 }
4504 })
4505 });
4506 this.insert("", cx);
4507 this.refresh_copilot_suggestions(true, cx);
4508 });
4509 }
4510
4511 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4512 if self.move_to_prev_snippet_tabstop(cx) {
4513 return;
4514 }
4515
4516 self.outdent(&Outdent, cx);
4517 }
4518
4519 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4520 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4521 return;
4522 }
4523
4524 let mut selections = self.selections.all_adjusted(cx);
4525 let buffer = self.buffer.read(cx);
4526 let snapshot = buffer.snapshot(cx);
4527 let rows_iter = selections.iter().map(|s| s.head().row);
4528 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4529
4530 let mut edits = Vec::new();
4531 let mut prev_edited_row = 0;
4532 let mut row_delta = 0;
4533 for selection in &mut selections {
4534 if selection.start.row != prev_edited_row {
4535 row_delta = 0;
4536 }
4537 prev_edited_row = selection.end.row;
4538
4539 // If the selection is non-empty, then increase the indentation of the selected lines.
4540 if !selection.is_empty() {
4541 row_delta =
4542 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4543 continue;
4544 }
4545
4546 // If the selection is empty and the cursor is in the leading whitespace before the
4547 // suggested indentation, then auto-indent the line.
4548 let cursor = selection.head();
4549 let current_indent = snapshot.indent_size_for_line(cursor.row);
4550 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4551 if cursor.column < suggested_indent.len
4552 && cursor.column <= current_indent.len
4553 && current_indent.len <= suggested_indent.len
4554 {
4555 selection.start = Point::new(cursor.row, suggested_indent.len);
4556 selection.end = selection.start;
4557 if row_delta == 0 {
4558 edits.extend(Buffer::edit_for_indent_size_adjustment(
4559 cursor.row,
4560 current_indent,
4561 suggested_indent,
4562 ));
4563 row_delta = suggested_indent.len - current_indent.len;
4564 }
4565 continue;
4566 }
4567 }
4568
4569 // Accept copilot suggestion if there is only one selection and the cursor is not
4570 // in the leading whitespace.
4571 if self.selections.count() == 1
4572 && cursor.column >= current_indent.len
4573 && self.has_active_copilot_suggestion(cx)
4574 {
4575 self.accept_copilot_suggestion(cx);
4576 return;
4577 }
4578
4579 // Otherwise, insert a hard or soft tab.
4580 let settings = buffer.settings_at(cursor, cx);
4581 let tab_size = if settings.hard_tabs {
4582 IndentSize::tab()
4583 } else {
4584 let tab_size = settings.tab_size.get();
4585 let char_column = snapshot
4586 .text_for_range(Point::new(cursor.row, 0)..cursor)
4587 .flat_map(str::chars)
4588 .count()
4589 + row_delta as usize;
4590 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4591 IndentSize::spaces(chars_to_next_tab_stop)
4592 };
4593 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4594 selection.end = selection.start;
4595 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4596 row_delta += tab_size.len;
4597 }
4598
4599 self.transact(cx, |this, cx| {
4600 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4601 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4602 this.refresh_copilot_suggestions(true, cx);
4603 });
4604 }
4605
4606 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4607 if self.read_only(cx) {
4608 return;
4609 }
4610 let mut selections = self.selections.all::<Point>(cx);
4611 let mut prev_edited_row = 0;
4612 let mut row_delta = 0;
4613 let mut edits = Vec::new();
4614 let buffer = self.buffer.read(cx);
4615 let snapshot = buffer.snapshot(cx);
4616 for selection in &mut selections {
4617 if selection.start.row != prev_edited_row {
4618 row_delta = 0;
4619 }
4620 prev_edited_row = selection.end.row;
4621
4622 row_delta =
4623 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4624 }
4625
4626 self.transact(cx, |this, cx| {
4627 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4628 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4629 });
4630 }
4631
4632 fn indent_selection(
4633 buffer: &MultiBuffer,
4634 snapshot: &MultiBufferSnapshot,
4635 selection: &mut Selection<Point>,
4636 edits: &mut Vec<(Range<Point>, String)>,
4637 delta_for_start_row: u32,
4638 cx: &AppContext,
4639 ) -> u32 {
4640 let settings = buffer.settings_at(selection.start, cx);
4641 let tab_size = settings.tab_size.get();
4642 let indent_kind = if settings.hard_tabs {
4643 IndentKind::Tab
4644 } else {
4645 IndentKind::Space
4646 };
4647 let mut start_row = selection.start.row;
4648 let mut end_row = selection.end.row + 1;
4649
4650 // If a selection ends at the beginning of a line, don't indent
4651 // that last line.
4652 if selection.end.column == 0 && selection.end.row > selection.start.row {
4653 end_row -= 1;
4654 }
4655
4656 // Avoid re-indenting a row that has already been indented by a
4657 // previous selection, but still update this selection's column
4658 // to reflect that indentation.
4659 if delta_for_start_row > 0 {
4660 start_row += 1;
4661 selection.start.column += delta_for_start_row;
4662 if selection.end.row == selection.start.row {
4663 selection.end.column += delta_for_start_row;
4664 }
4665 }
4666
4667 let mut delta_for_end_row = 0;
4668 for row in start_row..end_row {
4669 let current_indent = snapshot.indent_size_for_line(row);
4670 let indent_delta = match (current_indent.kind, indent_kind) {
4671 (IndentKind::Space, IndentKind::Space) => {
4672 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4673 IndentSize::spaces(columns_to_next_tab_stop)
4674 }
4675 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4676 (_, IndentKind::Tab) => IndentSize::tab(),
4677 };
4678
4679 let row_start = Point::new(row, 0);
4680 edits.push((
4681 row_start..row_start,
4682 indent_delta.chars().collect::<String>(),
4683 ));
4684
4685 // Update this selection's endpoints to reflect the indentation.
4686 if row == selection.start.row {
4687 selection.start.column += indent_delta.len;
4688 }
4689 if row == selection.end.row {
4690 selection.end.column += indent_delta.len;
4691 delta_for_end_row = indent_delta.len;
4692 }
4693 }
4694
4695 if selection.start.row == selection.end.row {
4696 delta_for_start_row + delta_for_end_row
4697 } else {
4698 delta_for_end_row
4699 }
4700 }
4701
4702 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4703 if self.read_only(cx) {
4704 return;
4705 }
4706 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4707 let selections = self.selections.all::<Point>(cx);
4708 let mut deletion_ranges = Vec::new();
4709 let mut last_outdent = None;
4710 {
4711 let buffer = self.buffer.read(cx);
4712 let snapshot = buffer.snapshot(cx);
4713 for selection in &selections {
4714 let settings = buffer.settings_at(selection.start, cx);
4715 let tab_size = settings.tab_size.get();
4716 let mut rows = selection.spanned_rows(false, &display_map);
4717
4718 // Avoid re-outdenting a row that has already been outdented by a
4719 // previous selection.
4720 if let Some(last_row) = last_outdent {
4721 if last_row == rows.start {
4722 rows.start += 1;
4723 }
4724 }
4725
4726 for row in rows {
4727 let indent_size = snapshot.indent_size_for_line(row);
4728 if indent_size.len > 0 {
4729 let deletion_len = match indent_size.kind {
4730 IndentKind::Space => {
4731 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4732 if columns_to_prev_tab_stop == 0 {
4733 tab_size
4734 } else {
4735 columns_to_prev_tab_stop
4736 }
4737 }
4738 IndentKind::Tab => 1,
4739 };
4740 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4741 last_outdent = Some(row);
4742 }
4743 }
4744 }
4745 }
4746
4747 self.transact(cx, |this, cx| {
4748 this.buffer.update(cx, |buffer, cx| {
4749 let empty_str: Arc<str> = "".into();
4750 buffer.edit(
4751 deletion_ranges
4752 .into_iter()
4753 .map(|range| (range, empty_str.clone())),
4754 None,
4755 cx,
4756 );
4757 });
4758 let selections = this.selections.all::<usize>(cx);
4759 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4760 });
4761 }
4762
4763 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4764 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4765 let selections = self.selections.all::<Point>(cx);
4766
4767 let mut new_cursors = Vec::new();
4768 let mut edit_ranges = Vec::new();
4769 let mut selections = selections.iter().peekable();
4770 while let Some(selection) = selections.next() {
4771 let mut rows = selection.spanned_rows(false, &display_map);
4772 let goal_display_column = selection.head().to_display_point(&display_map).column();
4773
4774 // Accumulate contiguous regions of rows that we want to delete.
4775 while let Some(next_selection) = selections.peek() {
4776 let next_rows = next_selection.spanned_rows(false, &display_map);
4777 if next_rows.start <= rows.end {
4778 rows.end = next_rows.end;
4779 selections.next().unwrap();
4780 } else {
4781 break;
4782 }
4783 }
4784
4785 let buffer = &display_map.buffer_snapshot;
4786 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4787 let edit_end;
4788 let cursor_buffer_row;
4789 if buffer.max_point().row >= rows.end {
4790 // If there's a line after the range, delete the \n from the end of the row range
4791 // and position the cursor on the next line.
4792 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4793 cursor_buffer_row = rows.end;
4794 } else {
4795 // If there isn't a line after the range, delete the \n from the line before the
4796 // start of the row range and position the cursor there.
4797 edit_start = edit_start.saturating_sub(1);
4798 edit_end = buffer.len();
4799 cursor_buffer_row = rows.start.saturating_sub(1);
4800 }
4801
4802 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4803 *cursor.column_mut() =
4804 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4805
4806 new_cursors.push((
4807 selection.id,
4808 buffer.anchor_after(cursor.to_point(&display_map)),
4809 ));
4810 edit_ranges.push(edit_start..edit_end);
4811 }
4812
4813 self.transact(cx, |this, cx| {
4814 let buffer = this.buffer.update(cx, |buffer, cx| {
4815 let empty_str: Arc<str> = "".into();
4816 buffer.edit(
4817 edit_ranges
4818 .into_iter()
4819 .map(|range| (range, empty_str.clone())),
4820 None,
4821 cx,
4822 );
4823 buffer.snapshot(cx)
4824 });
4825 let new_selections = new_cursors
4826 .into_iter()
4827 .map(|(id, cursor)| {
4828 let cursor = cursor.to_point(&buffer);
4829 Selection {
4830 id,
4831 start: cursor,
4832 end: cursor,
4833 reversed: false,
4834 goal: SelectionGoal::None,
4835 }
4836 })
4837 .collect();
4838
4839 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4840 s.select(new_selections);
4841 });
4842 });
4843 }
4844
4845 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4846 if self.read_only(cx) {
4847 return;
4848 }
4849 let mut row_ranges = Vec::<Range<u32>>::new();
4850 for selection in self.selections.all::<Point>(cx) {
4851 let start = selection.start.row;
4852 let end = if selection.start.row == selection.end.row {
4853 selection.start.row + 1
4854 } else {
4855 selection.end.row
4856 };
4857
4858 if let Some(last_row_range) = row_ranges.last_mut() {
4859 if start <= last_row_range.end {
4860 last_row_range.end = end;
4861 continue;
4862 }
4863 }
4864 row_ranges.push(start..end);
4865 }
4866
4867 let snapshot = self.buffer.read(cx).snapshot(cx);
4868 let mut cursor_positions = Vec::new();
4869 for row_range in &row_ranges {
4870 let anchor = snapshot.anchor_before(Point::new(
4871 row_range.end - 1,
4872 snapshot.line_len(row_range.end - 1),
4873 ));
4874 cursor_positions.push(anchor..anchor);
4875 }
4876
4877 self.transact(cx, |this, cx| {
4878 for row_range in row_ranges.into_iter().rev() {
4879 for row in row_range.rev() {
4880 let end_of_line = Point::new(row, snapshot.line_len(row));
4881 let indent = snapshot.indent_size_for_line(row + 1);
4882 let start_of_next_line = Point::new(row + 1, indent.len);
4883
4884 let replace = if snapshot.line_len(row + 1) > indent.len {
4885 " "
4886 } else {
4887 ""
4888 };
4889
4890 this.buffer.update(cx, |buffer, cx| {
4891 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4892 });
4893 }
4894 }
4895
4896 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4897 s.select_anchor_ranges(cursor_positions)
4898 });
4899 });
4900 }
4901
4902 pub fn sort_lines_case_sensitive(
4903 &mut self,
4904 _: &SortLinesCaseSensitive,
4905 cx: &mut ViewContext<Self>,
4906 ) {
4907 self.manipulate_lines(cx, |lines| lines.sort())
4908 }
4909
4910 pub fn sort_lines_case_insensitive(
4911 &mut self,
4912 _: &SortLinesCaseInsensitive,
4913 cx: &mut ViewContext<Self>,
4914 ) {
4915 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4916 }
4917
4918 pub fn unique_lines_case_insensitive(
4919 &mut self,
4920 _: &UniqueLinesCaseInsensitive,
4921 cx: &mut ViewContext<Self>,
4922 ) {
4923 self.manipulate_lines(cx, |lines| {
4924 let mut seen = HashSet::default();
4925 lines.retain(|line| seen.insert(line.to_lowercase()));
4926 })
4927 }
4928
4929 pub fn unique_lines_case_sensitive(
4930 &mut self,
4931 _: &UniqueLinesCaseSensitive,
4932 cx: &mut ViewContext<Self>,
4933 ) {
4934 self.manipulate_lines(cx, |lines| {
4935 let mut seen = HashSet::default();
4936 lines.retain(|line| seen.insert(*line));
4937 })
4938 }
4939
4940 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
4941 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
4942 if !revert_changes.is_empty() {
4943 self.transact(cx, |editor, cx| {
4944 editor.buffer().update(cx, |multi_buffer, cx| {
4945 for (buffer_id, buffer_revert_ranges) in revert_changes {
4946 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
4947 buffer.update(cx, |buffer, cx| {
4948 buffer.edit(buffer_revert_ranges, None, cx);
4949 });
4950 }
4951 }
4952 });
4953 editor.change_selections(None, cx, |selections| selections.refresh());
4954 });
4955 }
4956 }
4957
4958 fn gather_revert_changes(
4959 &mut self,
4960 selections: &[Selection<Anchor>],
4961 cx: &mut ViewContext<'_, Editor>,
4962 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>> {
4963 let mut revert_changes = HashMap::default();
4964 self.buffer.update(cx, |multi_buffer, cx| {
4965 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4966 let selected_multi_buffer_rows = selections.iter().map(|selection| {
4967 let head = selection.head();
4968 let tail = selection.tail();
4969 let start = tail.to_point(&multi_buffer_snapshot).row;
4970 let end = head.to_point(&multi_buffer_snapshot).row;
4971 if start > end {
4972 end..start
4973 } else {
4974 start..end
4975 }
4976 });
4977
4978 let mut processed_buffer_rows =
4979 HashMap::<BufferId, HashSet<Range<text::Anchor>>>::default();
4980 for selected_multi_buffer_rows in selected_multi_buffer_rows {
4981 let query_rows =
4982 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
4983 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
4984 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
4985 // when the caret is just above or just below the deleted hunk.
4986 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
4987 let related_to_selection = if allow_adjacent {
4988 hunk.associated_range.overlaps(&query_rows)
4989 || hunk.associated_range.start == query_rows.end
4990 || hunk.associated_range.end == query_rows.start
4991 } else {
4992 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
4993 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
4994 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
4995 || selected_multi_buffer_rows.end == hunk.associated_range.start
4996 };
4997 if related_to_selection {
4998 if !processed_buffer_rows
4999 .entry(hunk.buffer_id)
5000 .or_default()
5001 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
5002 {
5003 continue;
5004 }
5005 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5006 }
5007 }
5008 }
5009 });
5010 revert_changes
5011 }
5012
5013 fn prepare_revert_change(
5014 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>>,
5015 multi_buffer: &MultiBuffer,
5016 hunk: &DiffHunk<u32>,
5017 cx: &mut AppContext,
5018 ) -> Option<()> {
5019 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5020 let buffer = buffer.read(cx);
5021 let original_text = buffer.diff_base()?.get(hunk.diff_base_byte_range.clone())?;
5022 let buffer_snapshot = buffer.snapshot();
5023 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5024 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5025 probe
5026 .0
5027 .start
5028 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5029 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5030 .then(probe.1.as_ref().cmp(original_text))
5031 }) {
5032 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), Arc::from(original_text)));
5033 Some(())
5034 } else {
5035 None
5036 }
5037 }
5038
5039 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5040 self.manipulate_lines(cx, |lines| lines.reverse())
5041 }
5042
5043 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5044 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5045 }
5046
5047 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5048 where
5049 Fn: FnMut(&mut Vec<&str>),
5050 {
5051 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5052 let buffer = self.buffer.read(cx).snapshot(cx);
5053
5054 let mut edits = Vec::new();
5055
5056 let selections = self.selections.all::<Point>(cx);
5057 let mut selections = selections.iter().peekable();
5058 let mut contiguous_row_selections = Vec::new();
5059 let mut new_selections = Vec::new();
5060 let mut added_lines = 0;
5061 let mut removed_lines = 0;
5062
5063 while let Some(selection) = selections.next() {
5064 let (start_row, end_row) = consume_contiguous_rows(
5065 &mut contiguous_row_selections,
5066 selection,
5067 &display_map,
5068 &mut selections,
5069 );
5070
5071 let start_point = Point::new(start_row, 0);
5072 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
5073 let text = buffer
5074 .text_for_range(start_point..end_point)
5075 .collect::<String>();
5076
5077 let mut lines = text.split('\n').collect_vec();
5078
5079 let lines_before = lines.len();
5080 callback(&mut lines);
5081 let lines_after = lines.len();
5082
5083 edits.push((start_point..end_point, lines.join("\n")));
5084
5085 // Selections must change based on added and removed line count
5086 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
5087 let end_row = start_row + lines_after.saturating_sub(1) as u32;
5088 new_selections.push(Selection {
5089 id: selection.id,
5090 start: start_row,
5091 end: end_row,
5092 goal: SelectionGoal::None,
5093 reversed: selection.reversed,
5094 });
5095
5096 if lines_after > lines_before {
5097 added_lines += lines_after - lines_before;
5098 } else if lines_before > lines_after {
5099 removed_lines += lines_before - lines_after;
5100 }
5101 }
5102
5103 self.transact(cx, |this, cx| {
5104 let buffer = this.buffer.update(cx, |buffer, cx| {
5105 buffer.edit(edits, None, cx);
5106 buffer.snapshot(cx)
5107 });
5108
5109 // Recalculate offsets on newly edited buffer
5110 let new_selections = new_selections
5111 .iter()
5112 .map(|s| {
5113 let start_point = Point::new(s.start, 0);
5114 let end_point = Point::new(s.end, buffer.line_len(s.end));
5115 Selection {
5116 id: s.id,
5117 start: buffer.point_to_offset(start_point),
5118 end: buffer.point_to_offset(end_point),
5119 goal: s.goal,
5120 reversed: s.reversed,
5121 }
5122 })
5123 .collect();
5124
5125 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5126 s.select(new_selections);
5127 });
5128
5129 this.request_autoscroll(Autoscroll::fit(), cx);
5130 });
5131 }
5132
5133 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5134 self.manipulate_text(cx, |text| text.to_uppercase())
5135 }
5136
5137 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5138 self.manipulate_text(cx, |text| text.to_lowercase())
5139 }
5140
5141 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5142 self.manipulate_text(cx, |text| {
5143 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5144 // https://github.com/rutrum/convert-case/issues/16
5145 text.split('\n')
5146 .map(|line| line.to_case(Case::Title))
5147 .join("\n")
5148 })
5149 }
5150
5151 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5152 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5153 }
5154
5155 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5156 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5157 }
5158
5159 pub fn convert_to_upper_camel_case(
5160 &mut self,
5161 _: &ConvertToUpperCamelCase,
5162 cx: &mut ViewContext<Self>,
5163 ) {
5164 self.manipulate_text(cx, |text| {
5165 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5166 // https://github.com/rutrum/convert-case/issues/16
5167 text.split('\n')
5168 .map(|line| line.to_case(Case::UpperCamel))
5169 .join("\n")
5170 })
5171 }
5172
5173 pub fn convert_to_lower_camel_case(
5174 &mut self,
5175 _: &ConvertToLowerCamelCase,
5176 cx: &mut ViewContext<Self>,
5177 ) {
5178 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5179 }
5180
5181 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5182 where
5183 Fn: FnMut(&str) -> String,
5184 {
5185 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5186 let buffer = self.buffer.read(cx).snapshot(cx);
5187
5188 let mut new_selections = Vec::new();
5189 let mut edits = Vec::new();
5190 let mut selection_adjustment = 0i32;
5191
5192 for selection in self.selections.all::<usize>(cx) {
5193 let selection_is_empty = selection.is_empty();
5194
5195 let (start, end) = if selection_is_empty {
5196 let word_range = movement::surrounding_word(
5197 &display_map,
5198 selection.start.to_display_point(&display_map),
5199 );
5200 let start = word_range.start.to_offset(&display_map, Bias::Left);
5201 let end = word_range.end.to_offset(&display_map, Bias::Left);
5202 (start, end)
5203 } else {
5204 (selection.start, selection.end)
5205 };
5206
5207 let text = buffer.text_for_range(start..end).collect::<String>();
5208 let old_length = text.len() as i32;
5209 let text = callback(&text);
5210
5211 new_selections.push(Selection {
5212 start: (start as i32 - selection_adjustment) as usize,
5213 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5214 goal: SelectionGoal::None,
5215 ..selection
5216 });
5217
5218 selection_adjustment += old_length - text.len() as i32;
5219
5220 edits.push((start..end, text));
5221 }
5222
5223 self.transact(cx, |this, cx| {
5224 this.buffer.update(cx, |buffer, cx| {
5225 buffer.edit(edits, None, cx);
5226 });
5227
5228 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5229 s.select(new_selections);
5230 });
5231
5232 this.request_autoscroll(Autoscroll::fit(), cx);
5233 });
5234 }
5235
5236 pub fn duplicate_line(&mut self, action: &DuplicateLine, cx: &mut ViewContext<Self>) {
5237 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5238 let buffer = &display_map.buffer_snapshot;
5239 let selections = self.selections.all::<Point>(cx);
5240
5241 let mut edits = Vec::new();
5242 let mut selections_iter = selections.iter().peekable();
5243 while let Some(selection) = selections_iter.next() {
5244 // Avoid duplicating the same lines twice.
5245 let mut rows = selection.spanned_rows(false, &display_map);
5246
5247 while let Some(next_selection) = selections_iter.peek() {
5248 let next_rows = next_selection.spanned_rows(false, &display_map);
5249 if next_rows.start < rows.end {
5250 rows.end = next_rows.end;
5251 selections_iter.next().unwrap();
5252 } else {
5253 break;
5254 }
5255 }
5256
5257 // Copy the text from the selected row region and splice it either at the start
5258 // or end of the region.
5259 let start = Point::new(rows.start, 0);
5260 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5261 let text = buffer
5262 .text_for_range(start..end)
5263 .chain(Some("\n"))
5264 .collect::<String>();
5265 let insert_location = if action.move_upwards {
5266 Point::new(rows.end, 0)
5267 } else {
5268 start
5269 };
5270 edits.push((insert_location..insert_location, text));
5271 }
5272
5273 self.transact(cx, |this, cx| {
5274 this.buffer.update(cx, |buffer, cx| {
5275 buffer.edit(edits, None, cx);
5276 });
5277
5278 this.request_autoscroll(Autoscroll::fit(), cx);
5279 });
5280 }
5281
5282 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5283 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5284 let buffer = self.buffer.read(cx).snapshot(cx);
5285
5286 let mut edits = Vec::new();
5287 let mut unfold_ranges = Vec::new();
5288 let mut refold_ranges = Vec::new();
5289
5290 let selections = self.selections.all::<Point>(cx);
5291 let mut selections = selections.iter().peekable();
5292 let mut contiguous_row_selections = Vec::new();
5293 let mut new_selections = Vec::new();
5294
5295 while let Some(selection) = selections.next() {
5296 // Find all the selections that span a contiguous row range
5297 let (start_row, end_row) = consume_contiguous_rows(
5298 &mut contiguous_row_selections,
5299 selection,
5300 &display_map,
5301 &mut selections,
5302 );
5303
5304 // Move the text spanned by the row range to be before the line preceding the row range
5305 if start_row > 0 {
5306 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5307 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5308 let insertion_point = display_map
5309 .prev_line_boundary(Point::new(start_row - 1, 0))
5310 .0;
5311
5312 // Don't move lines across excerpts
5313 if buffer
5314 .excerpt_boundaries_in_range((
5315 Bound::Excluded(insertion_point),
5316 Bound::Included(range_to_move.end),
5317 ))
5318 .next()
5319 .is_none()
5320 {
5321 let text = buffer
5322 .text_for_range(range_to_move.clone())
5323 .flat_map(|s| s.chars())
5324 .skip(1)
5325 .chain(['\n'])
5326 .collect::<String>();
5327
5328 edits.push((
5329 buffer.anchor_after(range_to_move.start)
5330 ..buffer.anchor_before(range_to_move.end),
5331 String::new(),
5332 ));
5333 let insertion_anchor = buffer.anchor_after(insertion_point);
5334 edits.push((insertion_anchor..insertion_anchor, text));
5335
5336 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5337
5338 // Move selections up
5339 new_selections.extend(contiguous_row_selections.drain(..).map(
5340 |mut selection| {
5341 selection.start.row -= row_delta;
5342 selection.end.row -= row_delta;
5343 selection
5344 },
5345 ));
5346
5347 // Move folds up
5348 unfold_ranges.push(range_to_move.clone());
5349 for fold in display_map.folds_in_range(
5350 buffer.anchor_before(range_to_move.start)
5351 ..buffer.anchor_after(range_to_move.end),
5352 ) {
5353 let mut start = fold.range.start.to_point(&buffer);
5354 let mut end = fold.range.end.to_point(&buffer);
5355 start.row -= row_delta;
5356 end.row -= row_delta;
5357 refold_ranges.push(start..end);
5358 }
5359 }
5360 }
5361
5362 // If we didn't move line(s), preserve the existing selections
5363 new_selections.append(&mut contiguous_row_selections);
5364 }
5365
5366 self.transact(cx, |this, cx| {
5367 this.unfold_ranges(unfold_ranges, true, true, cx);
5368 this.buffer.update(cx, |buffer, cx| {
5369 for (range, text) in edits {
5370 buffer.edit([(range, text)], None, cx);
5371 }
5372 });
5373 this.fold_ranges(refold_ranges, true, cx);
5374 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5375 s.select(new_selections);
5376 })
5377 });
5378 }
5379
5380 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5381 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5382 let buffer = self.buffer.read(cx).snapshot(cx);
5383
5384 let mut edits = Vec::new();
5385 let mut unfold_ranges = Vec::new();
5386 let mut refold_ranges = Vec::new();
5387
5388 let selections = self.selections.all::<Point>(cx);
5389 let mut selections = selections.iter().peekable();
5390 let mut contiguous_row_selections = Vec::new();
5391 let mut new_selections = Vec::new();
5392
5393 while let Some(selection) = selections.next() {
5394 // Find all the selections that span a contiguous row range
5395 let (start_row, end_row) = consume_contiguous_rows(
5396 &mut contiguous_row_selections,
5397 selection,
5398 &display_map,
5399 &mut selections,
5400 );
5401
5402 // Move the text spanned by the row range to be after the last line of the row range
5403 if end_row <= buffer.max_point().row {
5404 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5405 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5406
5407 // Don't move lines across excerpt boundaries
5408 if buffer
5409 .excerpt_boundaries_in_range((
5410 Bound::Excluded(range_to_move.start),
5411 Bound::Included(insertion_point),
5412 ))
5413 .next()
5414 .is_none()
5415 {
5416 let mut text = String::from("\n");
5417 text.extend(buffer.text_for_range(range_to_move.clone()));
5418 text.pop(); // Drop trailing newline
5419 edits.push((
5420 buffer.anchor_after(range_to_move.start)
5421 ..buffer.anchor_before(range_to_move.end),
5422 String::new(),
5423 ));
5424 let insertion_anchor = buffer.anchor_after(insertion_point);
5425 edits.push((insertion_anchor..insertion_anchor, text));
5426
5427 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5428
5429 // Move selections down
5430 new_selections.extend(contiguous_row_selections.drain(..).map(
5431 |mut selection| {
5432 selection.start.row += row_delta;
5433 selection.end.row += row_delta;
5434 selection
5435 },
5436 ));
5437
5438 // Move folds down
5439 unfold_ranges.push(range_to_move.clone());
5440 for fold in display_map.folds_in_range(
5441 buffer.anchor_before(range_to_move.start)
5442 ..buffer.anchor_after(range_to_move.end),
5443 ) {
5444 let mut start = fold.range.start.to_point(&buffer);
5445 let mut end = fold.range.end.to_point(&buffer);
5446 start.row += row_delta;
5447 end.row += row_delta;
5448 refold_ranges.push(start..end);
5449 }
5450 }
5451 }
5452
5453 // If we didn't move line(s), preserve the existing selections
5454 new_selections.append(&mut contiguous_row_selections);
5455 }
5456
5457 self.transact(cx, |this, cx| {
5458 this.unfold_ranges(unfold_ranges, true, true, cx);
5459 this.buffer.update(cx, |buffer, cx| {
5460 for (range, text) in edits {
5461 buffer.edit([(range, text)], None, cx);
5462 }
5463 });
5464 this.fold_ranges(refold_ranges, true, cx);
5465 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5466 });
5467 }
5468
5469 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5470 let text_layout_details = &self.text_layout_details(cx);
5471 self.transact(cx, |this, cx| {
5472 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5473 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5474 let line_mode = s.line_mode;
5475 s.move_with(|display_map, selection| {
5476 if !selection.is_empty() || line_mode {
5477 return;
5478 }
5479
5480 let mut head = selection.head();
5481 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5482 if head.column() == display_map.line_len(head.row()) {
5483 transpose_offset = display_map
5484 .buffer_snapshot
5485 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5486 }
5487
5488 if transpose_offset == 0 {
5489 return;
5490 }
5491
5492 *head.column_mut() += 1;
5493 head = display_map.clip_point(head, Bias::Right);
5494 let goal = SelectionGoal::HorizontalPosition(
5495 display_map
5496 .x_for_display_point(head, &text_layout_details)
5497 .into(),
5498 );
5499 selection.collapse_to(head, goal);
5500
5501 let transpose_start = display_map
5502 .buffer_snapshot
5503 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5504 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5505 let transpose_end = display_map
5506 .buffer_snapshot
5507 .clip_offset(transpose_offset + 1, Bias::Right);
5508 if let Some(ch) =
5509 display_map.buffer_snapshot.chars_at(transpose_start).next()
5510 {
5511 edits.push((transpose_start..transpose_offset, String::new()));
5512 edits.push((transpose_end..transpose_end, ch.to_string()));
5513 }
5514 }
5515 });
5516 edits
5517 });
5518 this.buffer
5519 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5520 let selections = this.selections.all::<usize>(cx);
5521 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5522 s.select(selections);
5523 });
5524 });
5525 }
5526
5527 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5528 let mut text = String::new();
5529 let buffer = self.buffer.read(cx).snapshot(cx);
5530 let mut selections = self.selections.all::<Point>(cx);
5531 let mut clipboard_selections = Vec::with_capacity(selections.len());
5532 {
5533 let max_point = buffer.max_point();
5534 let mut is_first = true;
5535 for selection in &mut selections {
5536 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5537 if is_entire_line {
5538 selection.start = Point::new(selection.start.row, 0);
5539 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5540 selection.goal = SelectionGoal::None;
5541 }
5542 if is_first {
5543 is_first = false;
5544 } else {
5545 text += "\n";
5546 }
5547 let mut len = 0;
5548 for chunk in buffer.text_for_range(selection.start..selection.end) {
5549 text.push_str(chunk);
5550 len += chunk.len();
5551 }
5552 clipboard_selections.push(ClipboardSelection {
5553 len,
5554 is_entire_line,
5555 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5556 });
5557 }
5558 }
5559
5560 self.transact(cx, |this, cx| {
5561 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5562 s.select(selections);
5563 });
5564 this.insert("", cx);
5565 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5566 });
5567 }
5568
5569 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5570 let selections = self.selections.all::<Point>(cx);
5571 let buffer = self.buffer.read(cx).read(cx);
5572 let mut text = String::new();
5573
5574 let mut clipboard_selections = Vec::with_capacity(selections.len());
5575 {
5576 let max_point = buffer.max_point();
5577 let mut is_first = true;
5578 for selection in selections.iter() {
5579 let mut start = selection.start;
5580 let mut end = selection.end;
5581 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5582 if is_entire_line {
5583 start = Point::new(start.row, 0);
5584 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5585 }
5586 if is_first {
5587 is_first = false;
5588 } else {
5589 text += "\n";
5590 }
5591 let mut len = 0;
5592 for chunk in buffer.text_for_range(start..end) {
5593 text.push_str(chunk);
5594 len += chunk.len();
5595 }
5596 clipboard_selections.push(ClipboardSelection {
5597 len,
5598 is_entire_line,
5599 first_line_indent: buffer.indent_size_for_line(start.row).len,
5600 });
5601 }
5602 }
5603
5604 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5605 }
5606
5607 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5608 if self.read_only(cx) {
5609 return;
5610 }
5611
5612 self.transact(cx, |this, cx| {
5613 if let Some(item) = cx.read_from_clipboard() {
5614 let clipboard_text = Cow::Borrowed(item.text());
5615 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5616 let old_selections = this.selections.all::<usize>(cx);
5617 let all_selections_were_entire_line =
5618 clipboard_selections.iter().all(|s| s.is_entire_line);
5619 let first_selection_indent_column =
5620 clipboard_selections.first().map(|s| s.first_line_indent);
5621 if clipboard_selections.len() != old_selections.len() {
5622 clipboard_selections.drain(..);
5623 }
5624
5625 this.buffer.update(cx, |buffer, cx| {
5626 let snapshot = buffer.read(cx);
5627 let mut start_offset = 0;
5628 let mut edits = Vec::new();
5629 let mut original_indent_columns = Vec::new();
5630 let line_mode = this.selections.line_mode;
5631 for (ix, selection) in old_selections.iter().enumerate() {
5632 let to_insert;
5633 let entire_line;
5634 let original_indent_column;
5635 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5636 let end_offset = start_offset + clipboard_selection.len;
5637 to_insert = &clipboard_text[start_offset..end_offset];
5638 entire_line = clipboard_selection.is_entire_line;
5639 start_offset = end_offset + 1;
5640 original_indent_column =
5641 Some(clipboard_selection.first_line_indent);
5642 } else {
5643 to_insert = clipboard_text.as_str();
5644 entire_line = all_selections_were_entire_line;
5645 original_indent_column = first_selection_indent_column
5646 }
5647
5648 // If the corresponding selection was empty when this slice of the
5649 // clipboard text was written, then the entire line containing the
5650 // selection was copied. If this selection is also currently empty,
5651 // then paste the line before the current line of the buffer.
5652 let range = if selection.is_empty() && !line_mode && entire_line {
5653 let column = selection.start.to_point(&snapshot).column as usize;
5654 let line_start = selection.start - column;
5655 line_start..line_start
5656 } else {
5657 selection.range()
5658 };
5659
5660 edits.push((range, to_insert));
5661 original_indent_columns.extend(original_indent_column);
5662 }
5663 drop(snapshot);
5664
5665 buffer.edit(
5666 edits,
5667 Some(AutoindentMode::Block {
5668 original_indent_columns,
5669 }),
5670 cx,
5671 );
5672 });
5673
5674 let selections = this.selections.all::<usize>(cx);
5675 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5676 } else {
5677 this.insert(&clipboard_text, cx);
5678 }
5679 }
5680 });
5681 }
5682
5683 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5684 if self.read_only(cx) {
5685 return;
5686 }
5687
5688 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5689 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5690 self.change_selections(None, cx, |s| {
5691 s.select_anchors(selections.to_vec());
5692 });
5693 }
5694 self.request_autoscroll(Autoscroll::fit(), cx);
5695 self.unmark_text(cx);
5696 self.refresh_copilot_suggestions(true, cx);
5697 cx.emit(EditorEvent::Edited);
5698 cx.emit(EditorEvent::TransactionUndone {
5699 transaction_id: tx_id,
5700 });
5701 }
5702 }
5703
5704 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5705 if self.read_only(cx) {
5706 return;
5707 }
5708
5709 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5710 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5711 {
5712 self.change_selections(None, cx, |s| {
5713 s.select_anchors(selections.to_vec());
5714 });
5715 }
5716 self.request_autoscroll(Autoscroll::fit(), cx);
5717 self.unmark_text(cx);
5718 self.refresh_copilot_suggestions(true, cx);
5719 cx.emit(EditorEvent::Edited);
5720 }
5721 }
5722
5723 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5724 self.buffer
5725 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5726 }
5727
5728 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
5729 self.buffer
5730 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
5731 }
5732
5733 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5734 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5735 let line_mode = s.line_mode;
5736 s.move_with(|map, selection| {
5737 let cursor = if selection.is_empty() && !line_mode {
5738 movement::left(map, selection.start)
5739 } else {
5740 selection.start
5741 };
5742 selection.collapse_to(cursor, SelectionGoal::None);
5743 });
5744 })
5745 }
5746
5747 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5748 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5749 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5750 })
5751 }
5752
5753 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5754 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5755 let line_mode = s.line_mode;
5756 s.move_with(|map, selection| {
5757 let cursor = if selection.is_empty() && !line_mode {
5758 movement::right(map, selection.end)
5759 } else {
5760 selection.end
5761 };
5762 selection.collapse_to(cursor, SelectionGoal::None)
5763 });
5764 })
5765 }
5766
5767 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5768 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5769 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5770 })
5771 }
5772
5773 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5774 if self.take_rename(true, cx).is_some() {
5775 return;
5776 }
5777
5778 if matches!(self.mode, EditorMode::SingleLine) {
5779 cx.propagate();
5780 return;
5781 }
5782
5783 let text_layout_details = &self.text_layout_details(cx);
5784
5785 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5786 let line_mode = s.line_mode;
5787 s.move_with(|map, selection| {
5788 if !selection.is_empty() && !line_mode {
5789 selection.goal = SelectionGoal::None;
5790 }
5791 let (cursor, goal) = movement::up(
5792 map,
5793 selection.start,
5794 selection.goal,
5795 false,
5796 &text_layout_details,
5797 );
5798 selection.collapse_to(cursor, goal);
5799 });
5800 })
5801 }
5802
5803 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5804 if self.take_rename(true, cx).is_some() {
5805 return;
5806 }
5807
5808 if matches!(self.mode, EditorMode::SingleLine) {
5809 cx.propagate();
5810 return;
5811 }
5812
5813 let text_layout_details = &self.text_layout_details(cx);
5814
5815 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5816 let line_mode = s.line_mode;
5817 s.move_with(|map, selection| {
5818 if !selection.is_empty() && !line_mode {
5819 selection.goal = SelectionGoal::None;
5820 }
5821 let (cursor, goal) = movement::up_by_rows(
5822 map,
5823 selection.start,
5824 action.lines,
5825 selection.goal,
5826 false,
5827 &text_layout_details,
5828 );
5829 selection.collapse_to(cursor, goal);
5830 });
5831 })
5832 }
5833
5834 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5835 if self.take_rename(true, cx).is_some() {
5836 return;
5837 }
5838
5839 if matches!(self.mode, EditorMode::SingleLine) {
5840 cx.propagate();
5841 return;
5842 }
5843
5844 let text_layout_details = &self.text_layout_details(cx);
5845
5846 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5847 let line_mode = s.line_mode;
5848 s.move_with(|map, selection| {
5849 if !selection.is_empty() && !line_mode {
5850 selection.goal = SelectionGoal::None;
5851 }
5852 let (cursor, goal) = movement::down_by_rows(
5853 map,
5854 selection.start,
5855 action.lines,
5856 selection.goal,
5857 false,
5858 &text_layout_details,
5859 );
5860 selection.collapse_to(cursor, goal);
5861 });
5862 })
5863 }
5864
5865 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5866 let text_layout_details = &self.text_layout_details(cx);
5867 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5868 s.move_heads_with(|map, head, goal| {
5869 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5870 })
5871 })
5872 }
5873
5874 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5875 let text_layout_details = &self.text_layout_details(cx);
5876 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5877 s.move_heads_with(|map, head, goal| {
5878 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5879 })
5880 })
5881 }
5882
5883 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5884 if self.take_rename(true, cx).is_some() {
5885 return;
5886 }
5887
5888 if matches!(self.mode, EditorMode::SingleLine) {
5889 cx.propagate();
5890 return;
5891 }
5892
5893 let row_count = if let Some(row_count) = self.visible_line_count() {
5894 row_count as u32 - 1
5895 } else {
5896 return;
5897 };
5898
5899 let autoscroll = if action.center_cursor {
5900 Autoscroll::center()
5901 } else {
5902 Autoscroll::fit()
5903 };
5904
5905 let text_layout_details = &self.text_layout_details(cx);
5906
5907 self.change_selections(Some(autoscroll), cx, |s| {
5908 let line_mode = s.line_mode;
5909 s.move_with(|map, selection| {
5910 if !selection.is_empty() && !line_mode {
5911 selection.goal = SelectionGoal::None;
5912 }
5913 let (cursor, goal) = movement::up_by_rows(
5914 map,
5915 selection.end,
5916 row_count,
5917 selection.goal,
5918 false,
5919 &text_layout_details,
5920 );
5921 selection.collapse_to(cursor, goal);
5922 });
5923 });
5924 }
5925
5926 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5927 let text_layout_details = &self.text_layout_details(cx);
5928 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5929 s.move_heads_with(|map, head, goal| {
5930 movement::up(map, head, goal, false, &text_layout_details)
5931 })
5932 })
5933 }
5934
5935 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5936 self.take_rename(true, cx);
5937
5938 if self.mode == EditorMode::SingleLine {
5939 cx.propagate();
5940 return;
5941 }
5942
5943 let text_layout_details = &self.text_layout_details(cx);
5944 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5945 let line_mode = s.line_mode;
5946 s.move_with(|map, selection| {
5947 if !selection.is_empty() && !line_mode {
5948 selection.goal = SelectionGoal::None;
5949 }
5950 let (cursor, goal) = movement::down(
5951 map,
5952 selection.end,
5953 selection.goal,
5954 false,
5955 &text_layout_details,
5956 );
5957 selection.collapse_to(cursor, goal);
5958 });
5959 });
5960 }
5961
5962 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5963 if self.take_rename(true, cx).is_some() {
5964 return;
5965 }
5966
5967 if self
5968 .context_menu
5969 .write()
5970 .as_mut()
5971 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5972 .unwrap_or(false)
5973 {
5974 return;
5975 }
5976
5977 if matches!(self.mode, EditorMode::SingleLine) {
5978 cx.propagate();
5979 return;
5980 }
5981
5982 let row_count = if let Some(row_count) = self.visible_line_count() {
5983 row_count as u32 - 1
5984 } else {
5985 return;
5986 };
5987
5988 let autoscroll = if action.center_cursor {
5989 Autoscroll::center()
5990 } else {
5991 Autoscroll::fit()
5992 };
5993
5994 let text_layout_details = &self.text_layout_details(cx);
5995 self.change_selections(Some(autoscroll), cx, |s| {
5996 let line_mode = s.line_mode;
5997 s.move_with(|map, selection| {
5998 if !selection.is_empty() && !line_mode {
5999 selection.goal = SelectionGoal::None;
6000 }
6001 let (cursor, goal) = movement::down_by_rows(
6002 map,
6003 selection.end,
6004 row_count,
6005 selection.goal,
6006 false,
6007 &text_layout_details,
6008 );
6009 selection.collapse_to(cursor, goal);
6010 });
6011 });
6012 }
6013
6014 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6015 let text_layout_details = &self.text_layout_details(cx);
6016 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6017 s.move_heads_with(|map, head, goal| {
6018 movement::down(map, head, goal, false, &text_layout_details)
6019 })
6020 });
6021 }
6022
6023 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6024 if let Some(context_menu) = self.context_menu.write().as_mut() {
6025 context_menu.select_first(self.project.as_ref(), cx);
6026 }
6027 }
6028
6029 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6030 if let Some(context_menu) = self.context_menu.write().as_mut() {
6031 context_menu.select_prev(self.project.as_ref(), cx);
6032 }
6033 }
6034
6035 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6036 if let Some(context_menu) = self.context_menu.write().as_mut() {
6037 context_menu.select_next(self.project.as_ref(), cx);
6038 }
6039 }
6040
6041 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6042 if let Some(context_menu) = self.context_menu.write().as_mut() {
6043 context_menu.select_last(self.project.as_ref(), cx);
6044 }
6045 }
6046
6047 pub fn move_to_previous_word_start(
6048 &mut self,
6049 _: &MoveToPreviousWordStart,
6050 cx: &mut ViewContext<Self>,
6051 ) {
6052 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6053 s.move_cursors_with(|map, head, _| {
6054 (
6055 movement::previous_word_start(map, head),
6056 SelectionGoal::None,
6057 )
6058 });
6059 })
6060 }
6061
6062 pub fn move_to_previous_subword_start(
6063 &mut self,
6064 _: &MoveToPreviousSubwordStart,
6065 cx: &mut ViewContext<Self>,
6066 ) {
6067 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6068 s.move_cursors_with(|map, head, _| {
6069 (
6070 movement::previous_subword_start(map, head),
6071 SelectionGoal::None,
6072 )
6073 });
6074 })
6075 }
6076
6077 pub fn select_to_previous_word_start(
6078 &mut self,
6079 _: &SelectToPreviousWordStart,
6080 cx: &mut ViewContext<Self>,
6081 ) {
6082 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6083 s.move_heads_with(|map, head, _| {
6084 (
6085 movement::previous_word_start(map, head),
6086 SelectionGoal::None,
6087 )
6088 });
6089 })
6090 }
6091
6092 pub fn select_to_previous_subword_start(
6093 &mut self,
6094 _: &SelectToPreviousSubwordStart,
6095 cx: &mut ViewContext<Self>,
6096 ) {
6097 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6098 s.move_heads_with(|map, head, _| {
6099 (
6100 movement::previous_subword_start(map, head),
6101 SelectionGoal::None,
6102 )
6103 });
6104 })
6105 }
6106
6107 pub fn delete_to_previous_word_start(
6108 &mut self,
6109 _: &DeleteToPreviousWordStart,
6110 cx: &mut ViewContext<Self>,
6111 ) {
6112 self.transact(cx, |this, cx| {
6113 this.select_autoclose_pair(cx);
6114 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6115 let line_mode = s.line_mode;
6116 s.move_with(|map, selection| {
6117 if selection.is_empty() && !line_mode {
6118 let cursor = movement::previous_word_start(map, selection.head());
6119 selection.set_head(cursor, SelectionGoal::None);
6120 }
6121 });
6122 });
6123 this.insert("", cx);
6124 });
6125 }
6126
6127 pub fn delete_to_previous_subword_start(
6128 &mut self,
6129 _: &DeleteToPreviousSubwordStart,
6130 cx: &mut ViewContext<Self>,
6131 ) {
6132 self.transact(cx, |this, cx| {
6133 this.select_autoclose_pair(cx);
6134 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6135 let line_mode = s.line_mode;
6136 s.move_with(|map, selection| {
6137 if selection.is_empty() && !line_mode {
6138 let cursor = movement::previous_subword_start(map, selection.head());
6139 selection.set_head(cursor, SelectionGoal::None);
6140 }
6141 });
6142 });
6143 this.insert("", cx);
6144 });
6145 }
6146
6147 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6148 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6149 s.move_cursors_with(|map, head, _| {
6150 (movement::next_word_end(map, head), SelectionGoal::None)
6151 });
6152 })
6153 }
6154
6155 pub fn move_to_next_subword_end(
6156 &mut self,
6157 _: &MoveToNextSubwordEnd,
6158 cx: &mut ViewContext<Self>,
6159 ) {
6160 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6161 s.move_cursors_with(|map, head, _| {
6162 (movement::next_subword_end(map, head), SelectionGoal::None)
6163 });
6164 })
6165 }
6166
6167 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6168 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6169 s.move_heads_with(|map, head, _| {
6170 (movement::next_word_end(map, head), SelectionGoal::None)
6171 });
6172 })
6173 }
6174
6175 pub fn select_to_next_subword_end(
6176 &mut self,
6177 _: &SelectToNextSubwordEnd,
6178 cx: &mut ViewContext<Self>,
6179 ) {
6180 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6181 s.move_heads_with(|map, head, _| {
6182 (movement::next_subword_end(map, head), SelectionGoal::None)
6183 });
6184 })
6185 }
6186
6187 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6188 self.transact(cx, |this, cx| {
6189 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6190 let line_mode = s.line_mode;
6191 s.move_with(|map, selection| {
6192 if selection.is_empty() && !line_mode {
6193 let cursor = movement::next_word_end(map, selection.head());
6194 selection.set_head(cursor, SelectionGoal::None);
6195 }
6196 });
6197 });
6198 this.insert("", cx);
6199 });
6200 }
6201
6202 pub fn delete_to_next_subword_end(
6203 &mut self,
6204 _: &DeleteToNextSubwordEnd,
6205 cx: &mut ViewContext<Self>,
6206 ) {
6207 self.transact(cx, |this, cx| {
6208 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6209 s.move_with(|map, selection| {
6210 if selection.is_empty() {
6211 let cursor = movement::next_subword_end(map, selection.head());
6212 selection.set_head(cursor, SelectionGoal::None);
6213 }
6214 });
6215 });
6216 this.insert("", cx);
6217 });
6218 }
6219
6220 pub fn move_to_beginning_of_line(
6221 &mut self,
6222 _: &MoveToBeginningOfLine,
6223 cx: &mut ViewContext<Self>,
6224 ) {
6225 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6226 s.move_cursors_with(|map, head, _| {
6227 (
6228 movement::indented_line_beginning(map, head, true),
6229 SelectionGoal::None,
6230 )
6231 });
6232 })
6233 }
6234
6235 pub fn select_to_beginning_of_line(
6236 &mut self,
6237 action: &SelectToBeginningOfLine,
6238 cx: &mut ViewContext<Self>,
6239 ) {
6240 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6241 s.move_heads_with(|map, head, _| {
6242 (
6243 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6244 SelectionGoal::None,
6245 )
6246 });
6247 });
6248 }
6249
6250 pub fn delete_to_beginning_of_line(
6251 &mut self,
6252 _: &DeleteToBeginningOfLine,
6253 cx: &mut ViewContext<Self>,
6254 ) {
6255 self.transact(cx, |this, cx| {
6256 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6257 s.move_with(|_, selection| {
6258 selection.reversed = true;
6259 });
6260 });
6261
6262 this.select_to_beginning_of_line(
6263 &SelectToBeginningOfLine {
6264 stop_at_soft_wraps: false,
6265 },
6266 cx,
6267 );
6268 this.backspace(&Backspace, cx);
6269 });
6270 }
6271
6272 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6273 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6274 s.move_cursors_with(|map, head, _| {
6275 (movement::line_end(map, head, true), SelectionGoal::None)
6276 });
6277 })
6278 }
6279
6280 pub fn select_to_end_of_line(
6281 &mut self,
6282 action: &SelectToEndOfLine,
6283 cx: &mut ViewContext<Self>,
6284 ) {
6285 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6286 s.move_heads_with(|map, head, _| {
6287 (
6288 movement::line_end(map, head, action.stop_at_soft_wraps),
6289 SelectionGoal::None,
6290 )
6291 });
6292 })
6293 }
6294
6295 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6296 self.transact(cx, |this, cx| {
6297 this.select_to_end_of_line(
6298 &SelectToEndOfLine {
6299 stop_at_soft_wraps: false,
6300 },
6301 cx,
6302 );
6303 this.delete(&Delete, cx);
6304 });
6305 }
6306
6307 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6308 self.transact(cx, |this, cx| {
6309 this.select_to_end_of_line(
6310 &SelectToEndOfLine {
6311 stop_at_soft_wraps: false,
6312 },
6313 cx,
6314 );
6315 this.cut(&Cut, cx);
6316 });
6317 }
6318
6319 pub fn move_to_start_of_paragraph(
6320 &mut self,
6321 _: &MoveToStartOfParagraph,
6322 cx: &mut ViewContext<Self>,
6323 ) {
6324 if matches!(self.mode, EditorMode::SingleLine) {
6325 cx.propagate();
6326 return;
6327 }
6328
6329 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6330 s.move_with(|map, selection| {
6331 selection.collapse_to(
6332 movement::start_of_paragraph(map, selection.head(), 1),
6333 SelectionGoal::None,
6334 )
6335 });
6336 })
6337 }
6338
6339 pub fn move_to_end_of_paragraph(
6340 &mut self,
6341 _: &MoveToEndOfParagraph,
6342 cx: &mut ViewContext<Self>,
6343 ) {
6344 if matches!(self.mode, EditorMode::SingleLine) {
6345 cx.propagate();
6346 return;
6347 }
6348
6349 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6350 s.move_with(|map, selection| {
6351 selection.collapse_to(
6352 movement::end_of_paragraph(map, selection.head(), 1),
6353 SelectionGoal::None,
6354 )
6355 });
6356 })
6357 }
6358
6359 pub fn select_to_start_of_paragraph(
6360 &mut self,
6361 _: &SelectToStartOfParagraph,
6362 cx: &mut ViewContext<Self>,
6363 ) {
6364 if matches!(self.mode, EditorMode::SingleLine) {
6365 cx.propagate();
6366 return;
6367 }
6368
6369 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6370 s.move_heads_with(|map, head, _| {
6371 (
6372 movement::start_of_paragraph(map, head, 1),
6373 SelectionGoal::None,
6374 )
6375 });
6376 })
6377 }
6378
6379 pub fn select_to_end_of_paragraph(
6380 &mut self,
6381 _: &SelectToEndOfParagraph,
6382 cx: &mut ViewContext<Self>,
6383 ) {
6384 if matches!(self.mode, EditorMode::SingleLine) {
6385 cx.propagate();
6386 return;
6387 }
6388
6389 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6390 s.move_heads_with(|map, head, _| {
6391 (
6392 movement::end_of_paragraph(map, head, 1),
6393 SelectionGoal::None,
6394 )
6395 });
6396 })
6397 }
6398
6399 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6400 if matches!(self.mode, EditorMode::SingleLine) {
6401 cx.propagate();
6402 return;
6403 }
6404
6405 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6406 s.select_ranges(vec![0..0]);
6407 });
6408 }
6409
6410 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6411 let mut selection = self.selections.last::<Point>(cx);
6412 selection.set_head(Point::zero(), SelectionGoal::None);
6413
6414 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6415 s.select(vec![selection]);
6416 });
6417 }
6418
6419 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6420 if matches!(self.mode, EditorMode::SingleLine) {
6421 cx.propagate();
6422 return;
6423 }
6424
6425 let cursor = self.buffer.read(cx).read(cx).len();
6426 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6427 s.select_ranges(vec![cursor..cursor])
6428 });
6429 }
6430
6431 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6432 self.nav_history = nav_history;
6433 }
6434
6435 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6436 self.nav_history.as_ref()
6437 }
6438
6439 fn push_to_nav_history(
6440 &mut self,
6441 cursor_anchor: Anchor,
6442 new_position: Option<Point>,
6443 cx: &mut ViewContext<Self>,
6444 ) {
6445 if let Some(nav_history) = self.nav_history.as_mut() {
6446 let buffer = self.buffer.read(cx).read(cx);
6447 let cursor_position = cursor_anchor.to_point(&buffer);
6448 let scroll_state = self.scroll_manager.anchor();
6449 let scroll_top_row = scroll_state.top_row(&buffer);
6450 drop(buffer);
6451
6452 if let Some(new_position) = new_position {
6453 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6454 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6455 return;
6456 }
6457 }
6458
6459 nav_history.push(
6460 Some(NavigationData {
6461 cursor_anchor,
6462 cursor_position,
6463 scroll_anchor: scroll_state,
6464 scroll_top_row,
6465 }),
6466 cx,
6467 );
6468 }
6469 }
6470
6471 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6472 let buffer = self.buffer.read(cx).snapshot(cx);
6473 let mut selection = self.selections.first::<usize>(cx);
6474 selection.set_head(buffer.len(), SelectionGoal::None);
6475 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6476 s.select(vec![selection]);
6477 });
6478 }
6479
6480 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6481 let end = self.buffer.read(cx).read(cx).len();
6482 self.change_selections(None, cx, |s| {
6483 s.select_ranges(vec![0..end]);
6484 });
6485 }
6486
6487 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6488 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6489 let mut selections = self.selections.all::<Point>(cx);
6490 let max_point = display_map.buffer_snapshot.max_point();
6491 for selection in &mut selections {
6492 let rows = selection.spanned_rows(true, &display_map);
6493 selection.start = Point::new(rows.start, 0);
6494 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6495 selection.reversed = false;
6496 }
6497 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6498 s.select(selections);
6499 });
6500 }
6501
6502 pub fn split_selection_into_lines(
6503 &mut self,
6504 _: &SplitSelectionIntoLines,
6505 cx: &mut ViewContext<Self>,
6506 ) {
6507 let mut to_unfold = Vec::new();
6508 let mut new_selection_ranges = Vec::new();
6509 {
6510 let selections = self.selections.all::<Point>(cx);
6511 let buffer = self.buffer.read(cx).read(cx);
6512 for selection in selections {
6513 for row in selection.start.row..selection.end.row {
6514 let cursor = Point::new(row, buffer.line_len(row));
6515 new_selection_ranges.push(cursor..cursor);
6516 }
6517 new_selection_ranges.push(selection.end..selection.end);
6518 to_unfold.push(selection.start..selection.end);
6519 }
6520 }
6521 self.unfold_ranges(to_unfold, true, true, cx);
6522 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6523 s.select_ranges(new_selection_ranges);
6524 });
6525 }
6526
6527 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6528 self.add_selection(true, cx);
6529 }
6530
6531 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6532 self.add_selection(false, cx);
6533 }
6534
6535 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6536 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6537 let mut selections = self.selections.all::<Point>(cx);
6538 let text_layout_details = self.text_layout_details(cx);
6539 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6540 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6541 let range = oldest_selection.display_range(&display_map).sorted();
6542
6543 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6544 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6545 let positions = start_x.min(end_x)..start_x.max(end_x);
6546
6547 selections.clear();
6548 let mut stack = Vec::new();
6549 for row in range.start.row()..=range.end.row() {
6550 if let Some(selection) = self.selections.build_columnar_selection(
6551 &display_map,
6552 row,
6553 &positions,
6554 oldest_selection.reversed,
6555 &text_layout_details,
6556 ) {
6557 stack.push(selection.id);
6558 selections.push(selection);
6559 }
6560 }
6561
6562 if above {
6563 stack.reverse();
6564 }
6565
6566 AddSelectionsState { above, stack }
6567 });
6568
6569 let last_added_selection = *state.stack.last().unwrap();
6570 let mut new_selections = Vec::new();
6571 if above == state.above {
6572 let end_row = if above {
6573 0
6574 } else {
6575 display_map.max_point().row()
6576 };
6577
6578 'outer: for selection in selections {
6579 if selection.id == last_added_selection {
6580 let range = selection.display_range(&display_map).sorted();
6581 debug_assert_eq!(range.start.row(), range.end.row());
6582 let mut row = range.start.row();
6583 let positions =
6584 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6585 px(start)..px(end)
6586 } else {
6587 let start_x =
6588 display_map.x_for_display_point(range.start, &text_layout_details);
6589 let end_x =
6590 display_map.x_for_display_point(range.end, &text_layout_details);
6591 start_x.min(end_x)..start_x.max(end_x)
6592 };
6593
6594 while row != end_row {
6595 if above {
6596 row -= 1;
6597 } else {
6598 row += 1;
6599 }
6600
6601 if let Some(new_selection) = self.selections.build_columnar_selection(
6602 &display_map,
6603 row,
6604 &positions,
6605 selection.reversed,
6606 &text_layout_details,
6607 ) {
6608 state.stack.push(new_selection.id);
6609 if above {
6610 new_selections.push(new_selection);
6611 new_selections.push(selection);
6612 } else {
6613 new_selections.push(selection);
6614 new_selections.push(new_selection);
6615 }
6616
6617 continue 'outer;
6618 }
6619 }
6620 }
6621
6622 new_selections.push(selection);
6623 }
6624 } else {
6625 new_selections = selections;
6626 new_selections.retain(|s| s.id != last_added_selection);
6627 state.stack.pop();
6628 }
6629
6630 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6631 s.select(new_selections);
6632 });
6633 if state.stack.len() > 1 {
6634 self.add_selections_state = Some(state);
6635 }
6636 }
6637
6638 pub fn select_next_match_internal(
6639 &mut self,
6640 display_map: &DisplaySnapshot,
6641 replace_newest: bool,
6642 autoscroll: Option<Autoscroll>,
6643 cx: &mut ViewContext<Self>,
6644 ) -> Result<()> {
6645 fn select_next_match_ranges(
6646 this: &mut Editor,
6647 range: Range<usize>,
6648 replace_newest: bool,
6649 auto_scroll: Option<Autoscroll>,
6650 cx: &mut ViewContext<Editor>,
6651 ) {
6652 this.unfold_ranges([range.clone()], false, true, cx);
6653 this.change_selections(auto_scroll, cx, |s| {
6654 if replace_newest {
6655 s.delete(s.newest_anchor().id);
6656 }
6657 s.insert_range(range.clone());
6658 });
6659 }
6660
6661 let buffer = &display_map.buffer_snapshot;
6662 let mut selections = self.selections.all::<usize>(cx);
6663 if let Some(mut select_next_state) = self.select_next_state.take() {
6664 let query = &select_next_state.query;
6665 if !select_next_state.done {
6666 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6667 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6668 let mut next_selected_range = None;
6669
6670 let bytes_after_last_selection =
6671 buffer.bytes_in_range(last_selection.end..buffer.len());
6672 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6673 let query_matches = query
6674 .stream_find_iter(bytes_after_last_selection)
6675 .map(|result| (last_selection.end, result))
6676 .chain(
6677 query
6678 .stream_find_iter(bytes_before_first_selection)
6679 .map(|result| (0, result)),
6680 );
6681
6682 for (start_offset, query_match) in query_matches {
6683 let query_match = query_match.unwrap(); // can only fail due to I/O
6684 let offset_range =
6685 start_offset + query_match.start()..start_offset + query_match.end();
6686 let display_range = offset_range.start.to_display_point(&display_map)
6687 ..offset_range.end.to_display_point(&display_map);
6688
6689 if !select_next_state.wordwise
6690 || (!movement::is_inside_word(&display_map, display_range.start)
6691 && !movement::is_inside_word(&display_map, display_range.end))
6692 {
6693 // TODO: This is n^2, because we might check all the selections
6694 if !selections
6695 .iter()
6696 .any(|selection| selection.range().overlaps(&offset_range))
6697 {
6698 next_selected_range = Some(offset_range);
6699 break;
6700 }
6701 }
6702 }
6703
6704 if let Some(next_selected_range) = next_selected_range {
6705 select_next_match_ranges(
6706 self,
6707 next_selected_range,
6708 replace_newest,
6709 autoscroll,
6710 cx,
6711 );
6712 } else {
6713 select_next_state.done = true;
6714 }
6715 }
6716
6717 self.select_next_state = Some(select_next_state);
6718 } else {
6719 let mut only_carets = true;
6720 let mut same_text_selected = true;
6721 let mut selected_text = None;
6722
6723 let mut selections_iter = selections.iter().peekable();
6724 while let Some(selection) = selections_iter.next() {
6725 if selection.start != selection.end {
6726 only_carets = false;
6727 }
6728
6729 if same_text_selected {
6730 if selected_text.is_none() {
6731 selected_text =
6732 Some(buffer.text_for_range(selection.range()).collect::<String>());
6733 }
6734
6735 if let Some(next_selection) = selections_iter.peek() {
6736 if next_selection.range().len() == selection.range().len() {
6737 let next_selected_text = buffer
6738 .text_for_range(next_selection.range())
6739 .collect::<String>();
6740 if Some(next_selected_text) != selected_text {
6741 same_text_selected = false;
6742 selected_text = None;
6743 }
6744 } else {
6745 same_text_selected = false;
6746 selected_text = None;
6747 }
6748 }
6749 }
6750 }
6751
6752 if only_carets {
6753 for selection in &mut selections {
6754 let word_range = movement::surrounding_word(
6755 &display_map,
6756 selection.start.to_display_point(&display_map),
6757 );
6758 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6759 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6760 selection.goal = SelectionGoal::None;
6761 selection.reversed = false;
6762 select_next_match_ranges(
6763 self,
6764 selection.start..selection.end,
6765 replace_newest,
6766 autoscroll,
6767 cx,
6768 );
6769 }
6770
6771 if selections.len() == 1 {
6772 let selection = selections
6773 .last()
6774 .expect("ensured that there's only one selection");
6775 let query = buffer
6776 .text_for_range(selection.start..selection.end)
6777 .collect::<String>();
6778 let is_empty = query.is_empty();
6779 let select_state = SelectNextState {
6780 query: AhoCorasick::new(&[query])?,
6781 wordwise: true,
6782 done: is_empty,
6783 };
6784 self.select_next_state = Some(select_state);
6785 } else {
6786 self.select_next_state = None;
6787 }
6788 } else if let Some(selected_text) = selected_text {
6789 self.select_next_state = Some(SelectNextState {
6790 query: AhoCorasick::new(&[selected_text])?,
6791 wordwise: false,
6792 done: false,
6793 });
6794 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6795 }
6796 }
6797 Ok(())
6798 }
6799
6800 pub fn select_all_matches(
6801 &mut self,
6802 _action: &SelectAllMatches,
6803 cx: &mut ViewContext<Self>,
6804 ) -> Result<()> {
6805 self.push_to_selection_history();
6806 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6807
6808 self.select_next_match_internal(&display_map, false, None, cx)?;
6809 let Some(select_next_state) = self.select_next_state.as_mut() else {
6810 return Ok(());
6811 };
6812 if select_next_state.done {
6813 return Ok(());
6814 }
6815
6816 let mut new_selections = self.selections.all::<usize>(cx);
6817
6818 let buffer = &display_map.buffer_snapshot;
6819 let query_matches = select_next_state
6820 .query
6821 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6822
6823 for query_match in query_matches {
6824 let query_match = query_match.unwrap(); // can only fail due to I/O
6825 let offset_range = query_match.start()..query_match.end();
6826 let display_range = offset_range.start.to_display_point(&display_map)
6827 ..offset_range.end.to_display_point(&display_map);
6828
6829 if !select_next_state.wordwise
6830 || (!movement::is_inside_word(&display_map, display_range.start)
6831 && !movement::is_inside_word(&display_map, display_range.end))
6832 {
6833 self.selections.change_with(cx, |selections| {
6834 new_selections.push(Selection {
6835 id: selections.new_selection_id(),
6836 start: offset_range.start,
6837 end: offset_range.end,
6838 reversed: false,
6839 goal: SelectionGoal::None,
6840 });
6841 });
6842 }
6843 }
6844
6845 new_selections.sort_by_key(|selection| selection.start);
6846 let mut ix = 0;
6847 while ix + 1 < new_selections.len() {
6848 let current_selection = &new_selections[ix];
6849 let next_selection = &new_selections[ix + 1];
6850 if current_selection.range().overlaps(&next_selection.range()) {
6851 if current_selection.id < next_selection.id {
6852 new_selections.remove(ix + 1);
6853 } else {
6854 new_selections.remove(ix);
6855 }
6856 } else {
6857 ix += 1;
6858 }
6859 }
6860
6861 select_next_state.done = true;
6862 self.unfold_ranges(
6863 new_selections.iter().map(|selection| selection.range()),
6864 false,
6865 false,
6866 cx,
6867 );
6868 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6869 selections.select(new_selections)
6870 });
6871
6872 Ok(())
6873 }
6874
6875 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6876 self.push_to_selection_history();
6877 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6878 self.select_next_match_internal(
6879 &display_map,
6880 action.replace_newest,
6881 Some(Autoscroll::newest()),
6882 cx,
6883 )?;
6884 Ok(())
6885 }
6886
6887 pub fn select_previous(
6888 &mut self,
6889 action: &SelectPrevious,
6890 cx: &mut ViewContext<Self>,
6891 ) -> Result<()> {
6892 self.push_to_selection_history();
6893 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6894 let buffer = &display_map.buffer_snapshot;
6895 let mut selections = self.selections.all::<usize>(cx);
6896 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6897 let query = &select_prev_state.query;
6898 if !select_prev_state.done {
6899 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6900 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6901 let mut next_selected_range = None;
6902 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6903 let bytes_before_last_selection =
6904 buffer.reversed_bytes_in_range(0..last_selection.start);
6905 let bytes_after_first_selection =
6906 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6907 let query_matches = query
6908 .stream_find_iter(bytes_before_last_selection)
6909 .map(|result| (last_selection.start, result))
6910 .chain(
6911 query
6912 .stream_find_iter(bytes_after_first_selection)
6913 .map(|result| (buffer.len(), result)),
6914 );
6915 for (end_offset, query_match) in query_matches {
6916 let query_match = query_match.unwrap(); // can only fail due to I/O
6917 let offset_range =
6918 end_offset - query_match.end()..end_offset - query_match.start();
6919 let display_range = offset_range.start.to_display_point(&display_map)
6920 ..offset_range.end.to_display_point(&display_map);
6921
6922 if !select_prev_state.wordwise
6923 || (!movement::is_inside_word(&display_map, display_range.start)
6924 && !movement::is_inside_word(&display_map, display_range.end))
6925 {
6926 next_selected_range = Some(offset_range);
6927 break;
6928 }
6929 }
6930
6931 if let Some(next_selected_range) = next_selected_range {
6932 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6933 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6934 if action.replace_newest {
6935 s.delete(s.newest_anchor().id);
6936 }
6937 s.insert_range(next_selected_range);
6938 });
6939 } else {
6940 select_prev_state.done = true;
6941 }
6942 }
6943
6944 self.select_prev_state = Some(select_prev_state);
6945 } else {
6946 let mut only_carets = true;
6947 let mut same_text_selected = true;
6948 let mut selected_text = None;
6949
6950 let mut selections_iter = selections.iter().peekable();
6951 while let Some(selection) = selections_iter.next() {
6952 if selection.start != selection.end {
6953 only_carets = false;
6954 }
6955
6956 if same_text_selected {
6957 if selected_text.is_none() {
6958 selected_text =
6959 Some(buffer.text_for_range(selection.range()).collect::<String>());
6960 }
6961
6962 if let Some(next_selection) = selections_iter.peek() {
6963 if next_selection.range().len() == selection.range().len() {
6964 let next_selected_text = buffer
6965 .text_for_range(next_selection.range())
6966 .collect::<String>();
6967 if Some(next_selected_text) != selected_text {
6968 same_text_selected = false;
6969 selected_text = None;
6970 }
6971 } else {
6972 same_text_selected = false;
6973 selected_text = None;
6974 }
6975 }
6976 }
6977 }
6978
6979 if only_carets {
6980 for selection in &mut selections {
6981 let word_range = movement::surrounding_word(
6982 &display_map,
6983 selection.start.to_display_point(&display_map),
6984 );
6985 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6986 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6987 selection.goal = SelectionGoal::None;
6988 selection.reversed = false;
6989 }
6990 if selections.len() == 1 {
6991 let selection = selections
6992 .last()
6993 .expect("ensured that there's only one selection");
6994 let query = buffer
6995 .text_for_range(selection.start..selection.end)
6996 .collect::<String>();
6997 let is_empty = query.is_empty();
6998 let select_state = SelectNextState {
6999 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7000 wordwise: true,
7001 done: is_empty,
7002 };
7003 self.select_prev_state = Some(select_state);
7004 } else {
7005 self.select_prev_state = None;
7006 }
7007
7008 self.unfold_ranges(
7009 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7010 false,
7011 true,
7012 cx,
7013 );
7014 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7015 s.select(selections);
7016 });
7017 } else if let Some(selected_text) = selected_text {
7018 self.select_prev_state = Some(SelectNextState {
7019 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7020 wordwise: false,
7021 done: false,
7022 });
7023 self.select_previous(action, cx)?;
7024 }
7025 }
7026 Ok(())
7027 }
7028
7029 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7030 let text_layout_details = &self.text_layout_details(cx);
7031 self.transact(cx, |this, cx| {
7032 let mut selections = this.selections.all::<Point>(cx);
7033 let mut edits = Vec::new();
7034 let mut selection_edit_ranges = Vec::new();
7035 let mut last_toggled_row = None;
7036 let snapshot = this.buffer.read(cx).read(cx);
7037 let empty_str: Arc<str> = "".into();
7038 let mut suffixes_inserted = Vec::new();
7039
7040 fn comment_prefix_range(
7041 snapshot: &MultiBufferSnapshot,
7042 row: u32,
7043 comment_prefix: &str,
7044 comment_prefix_whitespace: &str,
7045 ) -> Range<Point> {
7046 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
7047
7048 let mut line_bytes = snapshot
7049 .bytes_in_range(start..snapshot.max_point())
7050 .flatten()
7051 .copied();
7052
7053 // If this line currently begins with the line comment prefix, then record
7054 // the range containing the prefix.
7055 if line_bytes
7056 .by_ref()
7057 .take(comment_prefix.len())
7058 .eq(comment_prefix.bytes())
7059 {
7060 // Include any whitespace that matches the comment prefix.
7061 let matching_whitespace_len = line_bytes
7062 .zip(comment_prefix_whitespace.bytes())
7063 .take_while(|(a, b)| a == b)
7064 .count() as u32;
7065 let end = Point::new(
7066 start.row,
7067 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7068 );
7069 start..end
7070 } else {
7071 start..start
7072 }
7073 }
7074
7075 fn comment_suffix_range(
7076 snapshot: &MultiBufferSnapshot,
7077 row: u32,
7078 comment_suffix: &str,
7079 comment_suffix_has_leading_space: bool,
7080 ) -> Range<Point> {
7081 let end = Point::new(row, snapshot.line_len(row));
7082 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7083
7084 let mut line_end_bytes = snapshot
7085 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7086 .flatten()
7087 .copied();
7088
7089 let leading_space_len = if suffix_start_column > 0
7090 && line_end_bytes.next() == Some(b' ')
7091 && comment_suffix_has_leading_space
7092 {
7093 1
7094 } else {
7095 0
7096 };
7097
7098 // If this line currently begins with the line comment prefix, then record
7099 // the range containing the prefix.
7100 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7101 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7102 start..end
7103 } else {
7104 end..end
7105 }
7106 }
7107
7108 // TODO: Handle selections that cross excerpts
7109 for selection in &mut selections {
7110 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7111 let language = if let Some(language) =
7112 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7113 {
7114 language
7115 } else {
7116 continue;
7117 };
7118
7119 selection_edit_ranges.clear();
7120
7121 // If multiple selections contain a given row, avoid processing that
7122 // row more than once.
7123 let mut start_row = selection.start.row;
7124 if last_toggled_row == Some(start_row) {
7125 start_row += 1;
7126 }
7127 let end_row =
7128 if selection.end.row > selection.start.row && selection.end.column == 0 {
7129 selection.end.row - 1
7130 } else {
7131 selection.end.row
7132 };
7133 last_toggled_row = Some(end_row);
7134
7135 if start_row > end_row {
7136 continue;
7137 }
7138
7139 // If the language has line comments, toggle those.
7140 if let Some(full_comment_prefix) = language
7141 .line_comment_prefixes()
7142 .and_then(|prefixes| prefixes.first())
7143 {
7144 // Split the comment prefix's trailing whitespace into a separate string,
7145 // as that portion won't be used for detecting if a line is a comment.
7146 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7147 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7148 let mut all_selection_lines_are_comments = true;
7149
7150 for row in start_row..=end_row {
7151 if start_row < end_row && snapshot.is_line_blank(row) {
7152 continue;
7153 }
7154
7155 let prefix_range = comment_prefix_range(
7156 snapshot.deref(),
7157 row,
7158 comment_prefix,
7159 comment_prefix_whitespace,
7160 );
7161 if prefix_range.is_empty() {
7162 all_selection_lines_are_comments = false;
7163 }
7164 selection_edit_ranges.push(prefix_range);
7165 }
7166
7167 if all_selection_lines_are_comments {
7168 edits.extend(
7169 selection_edit_ranges
7170 .iter()
7171 .cloned()
7172 .map(|range| (range, empty_str.clone())),
7173 );
7174 } else {
7175 let min_column = selection_edit_ranges
7176 .iter()
7177 .map(|r| r.start.column)
7178 .min()
7179 .unwrap_or(0);
7180 edits.extend(selection_edit_ranges.iter().map(|range| {
7181 let position = Point::new(range.start.row, min_column);
7182 (position..position, full_comment_prefix.clone())
7183 }));
7184 }
7185 } else if let Some((full_comment_prefix, comment_suffix)) =
7186 language.block_comment_delimiters()
7187 {
7188 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7189 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7190 let prefix_range = comment_prefix_range(
7191 snapshot.deref(),
7192 start_row,
7193 comment_prefix,
7194 comment_prefix_whitespace,
7195 );
7196 let suffix_range = comment_suffix_range(
7197 snapshot.deref(),
7198 end_row,
7199 comment_suffix.trim_start_matches(' '),
7200 comment_suffix.starts_with(' '),
7201 );
7202
7203 if prefix_range.is_empty() || suffix_range.is_empty() {
7204 edits.push((
7205 prefix_range.start..prefix_range.start,
7206 full_comment_prefix.clone(),
7207 ));
7208 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7209 suffixes_inserted.push((end_row, comment_suffix.len()));
7210 } else {
7211 edits.push((prefix_range, empty_str.clone()));
7212 edits.push((suffix_range, empty_str.clone()));
7213 }
7214 } else {
7215 continue;
7216 }
7217 }
7218
7219 drop(snapshot);
7220 this.buffer.update(cx, |buffer, cx| {
7221 buffer.edit(edits, None, cx);
7222 });
7223
7224 // Adjust selections so that they end before any comment suffixes that
7225 // were inserted.
7226 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7227 let mut selections = this.selections.all::<Point>(cx);
7228 let snapshot = this.buffer.read(cx).read(cx);
7229 for selection in &mut selections {
7230 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7231 match row.cmp(&selection.end.row) {
7232 Ordering::Less => {
7233 suffixes_inserted.next();
7234 continue;
7235 }
7236 Ordering::Greater => break,
7237 Ordering::Equal => {
7238 if selection.end.column == snapshot.line_len(row) {
7239 if selection.is_empty() {
7240 selection.start.column -= suffix_len as u32;
7241 }
7242 selection.end.column -= suffix_len as u32;
7243 }
7244 break;
7245 }
7246 }
7247 }
7248 }
7249
7250 drop(snapshot);
7251 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7252
7253 let selections = this.selections.all::<Point>(cx);
7254 let selections_on_single_row = selections.windows(2).all(|selections| {
7255 selections[0].start.row == selections[1].start.row
7256 && selections[0].end.row == selections[1].end.row
7257 && selections[0].start.row == selections[0].end.row
7258 });
7259 let selections_selecting = selections
7260 .iter()
7261 .any(|selection| selection.start != selection.end);
7262 let advance_downwards = action.advance_downwards
7263 && selections_on_single_row
7264 && !selections_selecting
7265 && this.mode != EditorMode::SingleLine;
7266
7267 if advance_downwards {
7268 let snapshot = this.buffer.read(cx).snapshot(cx);
7269
7270 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7271 s.move_cursors_with(|display_snapshot, display_point, _| {
7272 let mut point = display_point.to_point(display_snapshot);
7273 point.row += 1;
7274 point = snapshot.clip_point(point, Bias::Left);
7275 let display_point = point.to_display_point(display_snapshot);
7276 let goal = SelectionGoal::HorizontalPosition(
7277 display_snapshot
7278 .x_for_display_point(display_point, &text_layout_details)
7279 .into(),
7280 );
7281 (display_point, goal)
7282 })
7283 });
7284 }
7285 });
7286 }
7287
7288 pub fn select_larger_syntax_node(
7289 &mut self,
7290 _: &SelectLargerSyntaxNode,
7291 cx: &mut ViewContext<Self>,
7292 ) {
7293 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7294 let buffer = self.buffer.read(cx).snapshot(cx);
7295 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7296
7297 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7298 let mut selected_larger_node = false;
7299 let new_selections = old_selections
7300 .iter()
7301 .map(|selection| {
7302 let old_range = selection.start..selection.end;
7303 let mut new_range = old_range.clone();
7304 while let Some(containing_range) =
7305 buffer.range_for_syntax_ancestor(new_range.clone())
7306 {
7307 new_range = containing_range;
7308 if !display_map.intersects_fold(new_range.start)
7309 && !display_map.intersects_fold(new_range.end)
7310 {
7311 break;
7312 }
7313 }
7314
7315 selected_larger_node |= new_range != old_range;
7316 Selection {
7317 id: selection.id,
7318 start: new_range.start,
7319 end: new_range.end,
7320 goal: SelectionGoal::None,
7321 reversed: selection.reversed,
7322 }
7323 })
7324 .collect::<Vec<_>>();
7325
7326 if selected_larger_node {
7327 stack.push(old_selections);
7328 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7329 s.select(new_selections);
7330 });
7331 }
7332 self.select_larger_syntax_node_stack = stack;
7333 }
7334
7335 pub fn select_smaller_syntax_node(
7336 &mut self,
7337 _: &SelectSmallerSyntaxNode,
7338 cx: &mut ViewContext<Self>,
7339 ) {
7340 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7341 if let Some(selections) = stack.pop() {
7342 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7343 s.select(selections.to_vec());
7344 });
7345 }
7346 self.select_larger_syntax_node_stack = stack;
7347 }
7348
7349 pub fn move_to_enclosing_bracket(
7350 &mut self,
7351 _: &MoveToEnclosingBracket,
7352 cx: &mut ViewContext<Self>,
7353 ) {
7354 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7355 s.move_offsets_with(|snapshot, selection| {
7356 let Some(enclosing_bracket_ranges) =
7357 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7358 else {
7359 return;
7360 };
7361
7362 let mut best_length = usize::MAX;
7363 let mut best_inside = false;
7364 let mut best_in_bracket_range = false;
7365 let mut best_destination = None;
7366 for (open, close) in enclosing_bracket_ranges {
7367 let close = close.to_inclusive();
7368 let length = close.end() - open.start;
7369 let inside = selection.start >= open.end && selection.end <= *close.start();
7370 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7371 || close.contains(&selection.head());
7372
7373 // If best is next to a bracket and current isn't, skip
7374 if !in_bracket_range && best_in_bracket_range {
7375 continue;
7376 }
7377
7378 // Prefer smaller lengths unless best is inside and current isn't
7379 if length > best_length && (best_inside || !inside) {
7380 continue;
7381 }
7382
7383 best_length = length;
7384 best_inside = inside;
7385 best_in_bracket_range = in_bracket_range;
7386 best_destination = Some(
7387 if close.contains(&selection.start) && close.contains(&selection.end) {
7388 if inside {
7389 open.end
7390 } else {
7391 open.start
7392 }
7393 } else {
7394 if inside {
7395 *close.start()
7396 } else {
7397 *close.end()
7398 }
7399 },
7400 );
7401 }
7402
7403 if let Some(destination) = best_destination {
7404 selection.collapse_to(destination, SelectionGoal::None);
7405 }
7406 })
7407 });
7408 }
7409
7410 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7411 self.end_selection(cx);
7412 self.selection_history.mode = SelectionHistoryMode::Undoing;
7413 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7414 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7415 self.select_next_state = entry.select_next_state;
7416 self.select_prev_state = entry.select_prev_state;
7417 self.add_selections_state = entry.add_selections_state;
7418 self.request_autoscroll(Autoscroll::newest(), cx);
7419 }
7420 self.selection_history.mode = SelectionHistoryMode::Normal;
7421 }
7422
7423 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7424 self.end_selection(cx);
7425 self.selection_history.mode = SelectionHistoryMode::Redoing;
7426 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7427 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7428 self.select_next_state = entry.select_next_state;
7429 self.select_prev_state = entry.select_prev_state;
7430 self.add_selections_state = entry.add_selections_state;
7431 self.request_autoscroll(Autoscroll::newest(), cx);
7432 }
7433 self.selection_history.mode = SelectionHistoryMode::Normal;
7434 }
7435
7436 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7437 self.go_to_diagnostic_impl(Direction::Next, cx)
7438 }
7439
7440 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7441 self.go_to_diagnostic_impl(Direction::Prev, cx)
7442 }
7443
7444 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7445 let buffer = self.buffer.read(cx).snapshot(cx);
7446 let selection = self.selections.newest::<usize>(cx);
7447
7448 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7449 if direction == Direction::Next {
7450 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7451 let (group_id, jump_to) = popover.activation_info();
7452 if self.activate_diagnostics(group_id, cx) {
7453 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7454 let mut new_selection = s.newest_anchor().clone();
7455 new_selection.collapse_to(jump_to, SelectionGoal::None);
7456 s.select_anchors(vec![new_selection.clone()]);
7457 });
7458 }
7459 return;
7460 }
7461 }
7462
7463 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7464 active_diagnostics
7465 .primary_range
7466 .to_offset(&buffer)
7467 .to_inclusive()
7468 });
7469 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7470 if active_primary_range.contains(&selection.head()) {
7471 *active_primary_range.end()
7472 } else {
7473 selection.head()
7474 }
7475 } else {
7476 selection.head()
7477 };
7478
7479 loop {
7480 let mut diagnostics = if direction == Direction::Prev {
7481 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7482 } else {
7483 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7484 };
7485 let group = diagnostics.find_map(|entry| {
7486 if entry.diagnostic.is_primary
7487 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7488 && !entry.range.is_empty()
7489 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7490 && !entry.range.contains(&search_start)
7491 {
7492 Some((entry.range, entry.diagnostic.group_id))
7493 } else {
7494 None
7495 }
7496 });
7497
7498 if let Some((primary_range, group_id)) = group {
7499 if self.activate_diagnostics(group_id, cx) {
7500 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7501 s.select(vec![Selection {
7502 id: selection.id,
7503 start: primary_range.start,
7504 end: primary_range.start,
7505 reversed: false,
7506 goal: SelectionGoal::None,
7507 }]);
7508 });
7509 }
7510 break;
7511 } else {
7512 // Cycle around to the start of the buffer, potentially moving back to the start of
7513 // the currently active diagnostic.
7514 active_primary_range.take();
7515 if direction == Direction::Prev {
7516 if search_start == buffer.len() {
7517 break;
7518 } else {
7519 search_start = buffer.len();
7520 }
7521 } else if search_start == 0 {
7522 break;
7523 } else {
7524 search_start = 0;
7525 }
7526 }
7527 }
7528 }
7529
7530 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7531 let snapshot = self
7532 .display_map
7533 .update(cx, |display_map, cx| display_map.snapshot(cx));
7534 let selection = self.selections.newest::<Point>(cx);
7535
7536 if !self.seek_in_direction(
7537 &snapshot,
7538 selection.head(),
7539 false,
7540 snapshot
7541 .buffer_snapshot
7542 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7543 cx,
7544 ) {
7545 let wrapped_point = Point::zero();
7546 self.seek_in_direction(
7547 &snapshot,
7548 wrapped_point,
7549 true,
7550 snapshot
7551 .buffer_snapshot
7552 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7553 cx,
7554 );
7555 }
7556 }
7557
7558 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7559 let snapshot = self
7560 .display_map
7561 .update(cx, |display_map, cx| display_map.snapshot(cx));
7562 let selection = self.selections.newest::<Point>(cx);
7563
7564 if !self.seek_in_direction(
7565 &snapshot,
7566 selection.head(),
7567 false,
7568 snapshot
7569 .buffer_snapshot
7570 .git_diff_hunks_in_range_rev(0..selection.head().row),
7571 cx,
7572 ) {
7573 let wrapped_point = snapshot.buffer_snapshot.max_point();
7574 self.seek_in_direction(
7575 &snapshot,
7576 wrapped_point,
7577 true,
7578 snapshot
7579 .buffer_snapshot
7580 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7581 cx,
7582 );
7583 }
7584 }
7585
7586 fn seek_in_direction(
7587 &mut self,
7588 snapshot: &DisplaySnapshot,
7589 initial_point: Point,
7590 is_wrapped: bool,
7591 hunks: impl Iterator<Item = DiffHunk<u32>>,
7592 cx: &mut ViewContext<Editor>,
7593 ) -> bool {
7594 let display_point = initial_point.to_display_point(snapshot);
7595 let mut hunks = hunks
7596 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7597 .filter(|hunk| {
7598 if is_wrapped {
7599 true
7600 } else {
7601 !hunk.contains_display_row(display_point.row())
7602 }
7603 })
7604 .dedup();
7605
7606 if let Some(hunk) = hunks.next() {
7607 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7608 let row = hunk.start_display_row();
7609 let point = DisplayPoint::new(row, 0);
7610 s.select_display_ranges([point..point]);
7611 });
7612
7613 true
7614 } else {
7615 false
7616 }
7617 }
7618
7619 pub fn go_to_definition(
7620 &mut self,
7621 _: &GoToDefinition,
7622 cx: &mut ViewContext<Self>,
7623 ) -> Task<Result<bool>> {
7624 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
7625 }
7626
7627 pub fn go_to_implementation(
7628 &mut self,
7629 _: &GoToImplementation,
7630 cx: &mut ViewContext<Self>,
7631 ) -> Task<Result<bool>> {
7632 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
7633 }
7634
7635 pub fn go_to_implementation_split(
7636 &mut self,
7637 _: &GoToImplementationSplit,
7638 cx: &mut ViewContext<Self>,
7639 ) -> Task<Result<bool>> {
7640 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
7641 }
7642
7643 pub fn go_to_type_definition(
7644 &mut self,
7645 _: &GoToTypeDefinition,
7646 cx: &mut ViewContext<Self>,
7647 ) -> Task<Result<bool>> {
7648 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
7649 }
7650
7651 pub fn go_to_definition_split(
7652 &mut self,
7653 _: &GoToDefinitionSplit,
7654 cx: &mut ViewContext<Self>,
7655 ) -> Task<Result<bool>> {
7656 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
7657 }
7658
7659 pub fn go_to_type_definition_split(
7660 &mut self,
7661 _: &GoToTypeDefinitionSplit,
7662 cx: &mut ViewContext<Self>,
7663 ) -> Task<Result<bool>> {
7664 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
7665 }
7666
7667 fn go_to_definition_of_kind(
7668 &mut self,
7669 kind: GotoDefinitionKind,
7670 split: bool,
7671 cx: &mut ViewContext<Self>,
7672 ) -> Task<Result<bool>> {
7673 let Some(workspace) = self.workspace() else {
7674 return Task::ready(Ok(false));
7675 };
7676 let buffer = self.buffer.read(cx);
7677 let head = self.selections.newest::<usize>(cx).head();
7678 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7679 text_anchor
7680 } else {
7681 return Task::ready(Ok(false));
7682 };
7683
7684 let project = workspace.read(cx).project().clone();
7685 let definitions = project.update(cx, |project, cx| match kind {
7686 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7687 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7688 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7689 });
7690
7691 cx.spawn(|editor, mut cx| async move {
7692 let definitions = definitions.await?;
7693 let navigated = editor
7694 .update(&mut cx, |editor, cx| {
7695 editor.navigate_to_hover_links(
7696 Some(kind),
7697 definitions.into_iter().map(HoverLink::Text).collect(),
7698 split,
7699 cx,
7700 )
7701 })?
7702 .await?;
7703 anyhow::Ok(navigated)
7704 })
7705 }
7706
7707 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7708 let position = self.selections.newest_anchor().head();
7709 let Some((buffer, buffer_position)) =
7710 self.buffer.read(cx).text_anchor_for_position(position, cx)
7711 else {
7712 return;
7713 };
7714
7715 cx.spawn(|editor, mut cx| async move {
7716 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7717 editor.update(&mut cx, |_, cx| {
7718 cx.open_url(&url);
7719 })
7720 } else {
7721 Ok(())
7722 }
7723 })
7724 .detach();
7725 }
7726
7727 pub(crate) fn navigate_to_hover_links(
7728 &mut self,
7729 kind: Option<GotoDefinitionKind>,
7730 mut definitions: Vec<HoverLink>,
7731 split: bool,
7732 cx: &mut ViewContext<Editor>,
7733 ) -> Task<Result<bool>> {
7734 // If there is one definition, just open it directly
7735 if definitions.len() == 1 {
7736 let definition = definitions.pop().unwrap();
7737 let target_task = match definition {
7738 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7739 HoverLink::InlayHint(lsp_location, server_id) => {
7740 self.compute_target_location(lsp_location, server_id, cx)
7741 }
7742 HoverLink::Url(url) => {
7743 cx.open_url(&url);
7744 Task::ready(Ok(None))
7745 }
7746 };
7747 cx.spawn(|editor, mut cx| async move {
7748 let target = target_task.await.context("target resolution task")?;
7749 if let Some(target) = target {
7750 editor.update(&mut cx, |editor, cx| {
7751 let Some(workspace) = editor.workspace() else {
7752 return false;
7753 };
7754 let pane = workspace.read(cx).active_pane().clone();
7755
7756 let range = target.range.to_offset(target.buffer.read(cx));
7757 let range = editor.range_for_match(&range);
7758 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7759 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7760 s.select_ranges([range]);
7761 });
7762 } else {
7763 cx.window_context().defer(move |cx| {
7764 let target_editor: View<Self> =
7765 workspace.update(cx, |workspace, cx| {
7766 let pane = if split {
7767 workspace.adjacent_pane(cx)
7768 } else {
7769 workspace.active_pane().clone()
7770 };
7771
7772 workspace.open_project_item(pane, target.buffer.clone(), cx)
7773 });
7774 target_editor.update(cx, |target_editor, cx| {
7775 // When selecting a definition in a different buffer, disable the nav history
7776 // to avoid creating a history entry at the previous cursor location.
7777 pane.update(cx, |pane, _| pane.disable_history());
7778 target_editor.change_selections(
7779 Some(Autoscroll::fit()),
7780 cx,
7781 |s| {
7782 s.select_ranges([range]);
7783 },
7784 );
7785 pane.update(cx, |pane, _| pane.enable_history());
7786 });
7787 });
7788 }
7789 true
7790 })
7791 } else {
7792 Ok(false)
7793 }
7794 })
7795 } else if !definitions.is_empty() {
7796 let replica_id = self.replica_id(cx);
7797 cx.spawn(|editor, mut cx| async move {
7798 let (title, location_tasks, workspace) = editor
7799 .update(&mut cx, |editor, cx| {
7800 let tab_kind = match kind {
7801 Some(GotoDefinitionKind::Implementation) => "Implementations",
7802 _ => "Definitions",
7803 };
7804 let title = definitions
7805 .iter()
7806 .find_map(|definition| match definition {
7807 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7808 let buffer = origin.buffer.read(cx);
7809 format!(
7810 "{} for {}",
7811 tab_kind,
7812 buffer
7813 .text_for_range(origin.range.clone())
7814 .collect::<String>()
7815 )
7816 }),
7817 HoverLink::InlayHint(_, _) => None,
7818 HoverLink::Url(_) => None,
7819 })
7820 .unwrap_or(tab_kind.to_string());
7821 let location_tasks = definitions
7822 .into_iter()
7823 .map(|definition| match definition {
7824 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7825 HoverLink::InlayHint(lsp_location, server_id) => {
7826 editor.compute_target_location(lsp_location, server_id, cx)
7827 }
7828 HoverLink::Url(_) => Task::ready(Ok(None)),
7829 })
7830 .collect::<Vec<_>>();
7831 (title, location_tasks, editor.workspace().clone())
7832 })
7833 .context("location tasks preparation")?;
7834
7835 let locations = futures::future::join_all(location_tasks)
7836 .await
7837 .into_iter()
7838 .filter_map(|location| location.transpose())
7839 .collect::<Result<_>>()
7840 .context("location tasks")?;
7841
7842 let Some(workspace) = workspace else {
7843 return Ok(false);
7844 };
7845 let opened = workspace
7846 .update(&mut cx, |workspace, cx| {
7847 Self::open_locations_in_multibuffer(
7848 workspace, locations, replica_id, title, split, cx,
7849 )
7850 })
7851 .ok();
7852
7853 anyhow::Ok(opened.is_some())
7854 })
7855 } else {
7856 Task::ready(Ok(false))
7857 }
7858 }
7859
7860 fn compute_target_location(
7861 &self,
7862 lsp_location: lsp::Location,
7863 server_id: LanguageServerId,
7864 cx: &mut ViewContext<Editor>,
7865 ) -> Task<anyhow::Result<Option<Location>>> {
7866 let Some(project) = self.project.clone() else {
7867 return Task::Ready(Some(Ok(None)));
7868 };
7869
7870 cx.spawn(move |editor, mut cx| async move {
7871 let location_task = editor.update(&mut cx, |editor, cx| {
7872 project.update(cx, |project, cx| {
7873 let language_server_name =
7874 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7875 project
7876 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7877 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7878 });
7879 language_server_name.map(|language_server_name| {
7880 project.open_local_buffer_via_lsp(
7881 lsp_location.uri.clone(),
7882 server_id,
7883 language_server_name,
7884 cx,
7885 )
7886 })
7887 })
7888 })?;
7889 let location = match location_task {
7890 Some(task) => Some({
7891 let target_buffer_handle = task.await.context("open local buffer")?;
7892 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7893 let target_start = target_buffer
7894 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7895 let target_end = target_buffer
7896 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7897 target_buffer.anchor_after(target_start)
7898 ..target_buffer.anchor_before(target_end)
7899 })?;
7900 Location {
7901 buffer: target_buffer_handle,
7902 range,
7903 }
7904 }),
7905 None => None,
7906 };
7907 Ok(location)
7908 })
7909 }
7910
7911 pub fn find_all_references(
7912 &mut self,
7913 _: &FindAllReferences,
7914 cx: &mut ViewContext<Self>,
7915 ) -> Option<Task<Result<()>>> {
7916 let multi_buffer = self.buffer.read(cx);
7917 let selection = self.selections.newest::<usize>(cx);
7918 let head = selection.head();
7919
7920 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
7921 let head_anchor = multi_buffer_snapshot.anchor_at(
7922 head,
7923 if head < selection.tail() {
7924 Bias::Right
7925 } else {
7926 Bias::Left
7927 },
7928 );
7929 match self
7930 .find_all_references_task_sources
7931 .binary_search_by(|task_anchor| task_anchor.cmp(&head_anchor, &multi_buffer_snapshot))
7932 {
7933 Ok(_) => {
7934 log::info!(
7935 "Ignoring repeated FindAllReferences invocation with the position of already running task"
7936 );
7937 return None;
7938 }
7939 Err(i) => {
7940 self.find_all_references_task_sources.insert(i, head_anchor);
7941 }
7942 }
7943
7944 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
7945 let replica_id = self.replica_id(cx);
7946 let workspace = self.workspace()?;
7947 let project = workspace.read(cx).project().clone();
7948 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7949 let open_task = cx.spawn(|editor, mut cx| async move {
7950 let mut locations = references.await?;
7951 let snapshot = buffer.update(&mut cx, |buffer, _| buffer.snapshot())?;
7952 let head_offset = text::ToOffset::to_offset(&head, &snapshot);
7953
7954 // LSP may return references that contain the item itself we requested `find_all_references` for (eg. rust-analyzer)
7955 // So we will remove it from locations
7956 // If there is only one reference, we will not do this filter cause it may make locations empty
7957 if locations.len() > 1 {
7958 cx.update(|cx| {
7959 locations.retain(|location| {
7960 // fn foo(x : i64) {
7961 // ^
7962 // println!(x);
7963 // }
7964 // It is ok to find reference when caret being at ^ (the end of the word)
7965 // So we turn offset into inclusive to include the end of the word
7966 !location
7967 .range
7968 .to_offset(location.buffer.read(cx))
7969 .to_inclusive()
7970 .contains(&head_offset)
7971 });
7972 })?;
7973 }
7974
7975 if locations.is_empty() {
7976 return Ok(());
7977 }
7978
7979 // If there is one reference, just open it directly
7980 if locations.len() == 1 {
7981 let target = locations.pop().unwrap();
7982
7983 return editor.update(&mut cx, |editor, cx| {
7984 let range = target.range.to_offset(target.buffer.read(cx));
7985 let range = editor.range_for_match(&range);
7986
7987 if Some(&target.buffer) == editor.buffer().read(cx).as_singleton().as_ref() {
7988 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7989 s.select_ranges([range]);
7990 });
7991 } else {
7992 cx.window_context().defer(move |cx| {
7993 let target_editor: View<Self> =
7994 workspace.update(cx, |workspace, cx| {
7995 workspace.open_project_item(
7996 workspace.active_pane().clone(),
7997 target.buffer.clone(),
7998 cx,
7999 )
8000 });
8001 target_editor.update(cx, |target_editor, cx| {
8002 target_editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8003 s.select_ranges([range]);
8004 })
8005 })
8006 })
8007 }
8008 });
8009 }
8010
8011 workspace.update(&mut cx, |workspace, cx| {
8012 let title = locations
8013 .first()
8014 .as_ref()
8015 .map(|location| {
8016 let buffer = location.buffer.read(cx);
8017 format!(
8018 "References to `{}`",
8019 buffer
8020 .text_for_range(location.range.clone())
8021 .collect::<String>()
8022 )
8023 })
8024 .unwrap();
8025 Self::open_locations_in_multibuffer(
8026 workspace, locations, replica_id, title, false, cx,
8027 );
8028 })?;
8029
8030 Ok(())
8031 });
8032 Some(cx.spawn(|editor, mut cx| async move {
8033 open_task.await?;
8034 editor.update(&mut cx, |editor, _| {
8035 if let Ok(i) =
8036 editor
8037 .find_all_references_task_sources
8038 .binary_search_by(|task_anchor| {
8039 task_anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8040 })
8041 {
8042 editor.find_all_references_task_sources.remove(i);
8043 }
8044 })?;
8045 anyhow::Ok(())
8046 }))
8047 }
8048
8049 /// Opens a multibuffer with the given project locations in it
8050 pub fn open_locations_in_multibuffer(
8051 workspace: &mut Workspace,
8052 mut locations: Vec<Location>,
8053 replica_id: ReplicaId,
8054 title: String,
8055 split: bool,
8056 cx: &mut ViewContext<Workspace>,
8057 ) {
8058 // If there are multiple definitions, open them in a multibuffer
8059 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8060 let mut locations = locations.into_iter().peekable();
8061 let mut ranges_to_highlight = Vec::new();
8062 let capability = workspace.project().read(cx).capability();
8063
8064 let excerpt_buffer = cx.new_model(|cx| {
8065 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8066 while let Some(location) = locations.next() {
8067 let buffer = location.buffer.read(cx);
8068 let mut ranges_for_buffer = Vec::new();
8069 let range = location.range.to_offset(buffer);
8070 ranges_for_buffer.push(range.clone());
8071
8072 while let Some(next_location) = locations.peek() {
8073 if next_location.buffer == location.buffer {
8074 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8075 locations.next();
8076 } else {
8077 break;
8078 }
8079 }
8080
8081 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8082 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8083 location.buffer.clone(),
8084 ranges_for_buffer,
8085 1,
8086 cx,
8087 ))
8088 }
8089
8090 multibuffer.with_title(title)
8091 });
8092
8093 let editor = cx.new_view(|cx| {
8094 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8095 });
8096 editor.update(cx, |editor, cx| {
8097 editor.highlight_background::<Self>(
8098 ranges_to_highlight,
8099 |theme| theme.editor_highlighted_line_background,
8100 cx,
8101 );
8102 });
8103 if split {
8104 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
8105 } else {
8106 workspace.add_item_to_active_pane(Box::new(editor), cx);
8107 }
8108 }
8109
8110 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8111 use language::ToOffset as _;
8112
8113 let project = self.project.clone()?;
8114 let selection = self.selections.newest_anchor().clone();
8115 let (cursor_buffer, cursor_buffer_position) = self
8116 .buffer
8117 .read(cx)
8118 .text_anchor_for_position(selection.head(), cx)?;
8119 let (tail_buffer, _) = self
8120 .buffer
8121 .read(cx)
8122 .text_anchor_for_position(selection.tail(), cx)?;
8123 if tail_buffer != cursor_buffer {
8124 return None;
8125 }
8126
8127 let snapshot = cursor_buffer.read(cx).snapshot();
8128 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8129 let prepare_rename = project.update(cx, |project, cx| {
8130 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8131 });
8132 drop(snapshot);
8133
8134 Some(cx.spawn(|this, mut cx| async move {
8135 let rename_range = if let Some(range) = prepare_rename.await? {
8136 Some(range)
8137 } else {
8138 this.update(&mut cx, |this, cx| {
8139 let buffer = this.buffer.read(cx).snapshot(cx);
8140 let mut buffer_highlights = this
8141 .document_highlights_for_position(selection.head(), &buffer)
8142 .filter(|highlight| {
8143 highlight.start.excerpt_id == selection.head().excerpt_id
8144 && highlight.end.excerpt_id == selection.head().excerpt_id
8145 });
8146 buffer_highlights
8147 .next()
8148 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8149 })?
8150 };
8151 if let Some(rename_range) = rename_range {
8152 this.update(&mut cx, |this, cx| {
8153 let snapshot = cursor_buffer.read(cx).snapshot();
8154 let rename_buffer_range = rename_range.to_offset(&snapshot);
8155 let cursor_offset_in_rename_range =
8156 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8157
8158 this.take_rename(false, cx);
8159 let buffer = this.buffer.read(cx).read(cx);
8160 let cursor_offset = selection.head().to_offset(&buffer);
8161 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8162 let rename_end = rename_start + rename_buffer_range.len();
8163 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8164 let mut old_highlight_id = None;
8165 let old_name: Arc<str> = buffer
8166 .chunks(rename_start..rename_end, true)
8167 .map(|chunk| {
8168 if old_highlight_id.is_none() {
8169 old_highlight_id = chunk.syntax_highlight_id;
8170 }
8171 chunk.text
8172 })
8173 .collect::<String>()
8174 .into();
8175
8176 drop(buffer);
8177
8178 // Position the selection in the rename editor so that it matches the current selection.
8179 this.show_local_selections = false;
8180 let rename_editor = cx.new_view(|cx| {
8181 let mut editor = Editor::single_line(cx);
8182 editor.buffer.update(cx, |buffer, cx| {
8183 buffer.edit([(0..0, old_name.clone())], None, cx)
8184 });
8185 editor.select_all(&SelectAll, cx);
8186 editor
8187 });
8188
8189 let ranges = this
8190 .clear_background_highlights::<DocumentHighlightWrite>(cx)
8191 .into_iter()
8192 .flat_map(|(_, ranges)| ranges.into_iter())
8193 .chain(
8194 this.clear_background_highlights::<DocumentHighlightRead>(cx)
8195 .into_iter()
8196 .flat_map(|(_, ranges)| ranges.into_iter()),
8197 )
8198 .collect();
8199
8200 this.highlight_text::<Rename>(
8201 ranges,
8202 HighlightStyle {
8203 fade_out: Some(0.6),
8204 ..Default::default()
8205 },
8206 cx,
8207 );
8208 let rename_focus_handle = rename_editor.focus_handle(cx);
8209 cx.focus(&rename_focus_handle);
8210 let block_id = this.insert_blocks(
8211 [BlockProperties {
8212 style: BlockStyle::Flex,
8213 position: range.start,
8214 height: 1,
8215 render: Arc::new({
8216 let rename_editor = rename_editor.clone();
8217 move |cx: &mut BlockContext| {
8218 let mut text_style = cx.editor_style.text.clone();
8219 if let Some(highlight_style) = old_highlight_id
8220 .and_then(|h| h.style(&cx.editor_style.syntax))
8221 {
8222 text_style = text_style.highlight(highlight_style);
8223 }
8224 div()
8225 .pl(cx.anchor_x)
8226 .child(EditorElement::new(
8227 &rename_editor,
8228 EditorStyle {
8229 background: cx.theme().system().transparent,
8230 local_player: cx.editor_style.local_player,
8231 text: text_style,
8232 scrollbar_width: cx.editor_style.scrollbar_width,
8233 syntax: cx.editor_style.syntax.clone(),
8234 status: cx.editor_style.status.clone(),
8235 inlay_hints_style: HighlightStyle {
8236 color: Some(cx.theme().status().hint),
8237 font_weight: Some(FontWeight::BOLD),
8238 ..HighlightStyle::default()
8239 },
8240 suggestions_style: HighlightStyle {
8241 color: Some(cx.theme().status().predictive),
8242 ..HighlightStyle::default()
8243 },
8244 },
8245 ))
8246 .into_any_element()
8247 }
8248 }),
8249 disposition: BlockDisposition::Below,
8250 }],
8251 Some(Autoscroll::fit()),
8252 cx,
8253 )[0];
8254 this.pending_rename = Some(RenameState {
8255 range,
8256 old_name,
8257 editor: rename_editor,
8258 block_id,
8259 });
8260 })?;
8261 }
8262
8263 Ok(())
8264 }))
8265 }
8266
8267 pub fn confirm_rename(
8268 &mut self,
8269 _: &ConfirmRename,
8270 cx: &mut ViewContext<Self>,
8271 ) -> Option<Task<Result<()>>> {
8272 let rename = self.take_rename(false, cx)?;
8273 let workspace = self.workspace()?;
8274 let (start_buffer, start) = self
8275 .buffer
8276 .read(cx)
8277 .text_anchor_for_position(rename.range.start, cx)?;
8278 let (end_buffer, end) = self
8279 .buffer
8280 .read(cx)
8281 .text_anchor_for_position(rename.range.end, cx)?;
8282 if start_buffer != end_buffer {
8283 return None;
8284 }
8285
8286 let buffer = start_buffer;
8287 let range = start..end;
8288 let old_name = rename.old_name;
8289 let new_name = rename.editor.read(cx).text(cx);
8290
8291 let rename = workspace
8292 .read(cx)
8293 .project()
8294 .clone()
8295 .update(cx, |project, cx| {
8296 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8297 });
8298 let workspace = workspace.downgrade();
8299
8300 Some(cx.spawn(|editor, mut cx| async move {
8301 let project_transaction = rename.await?;
8302 Self::open_project_transaction(
8303 &editor,
8304 workspace,
8305 project_transaction,
8306 format!("Rename: {} → {}", old_name, new_name),
8307 cx.clone(),
8308 )
8309 .await?;
8310
8311 editor.update(&mut cx, |editor, cx| {
8312 editor.refresh_document_highlights(cx);
8313 })?;
8314 Ok(())
8315 }))
8316 }
8317
8318 fn take_rename(
8319 &mut self,
8320 moving_cursor: bool,
8321 cx: &mut ViewContext<Self>,
8322 ) -> Option<RenameState> {
8323 let rename = self.pending_rename.take()?;
8324 if rename.editor.focus_handle(cx).is_focused(cx) {
8325 cx.focus(&self.focus_handle);
8326 }
8327
8328 self.remove_blocks(
8329 [rename.block_id].into_iter().collect(),
8330 Some(Autoscroll::fit()),
8331 cx,
8332 );
8333 self.clear_highlights::<Rename>(cx);
8334 self.show_local_selections = true;
8335
8336 if moving_cursor {
8337 let rename_editor = rename.editor.read(cx);
8338 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8339
8340 // Update the selection to match the position of the selection inside
8341 // the rename editor.
8342 let snapshot = self.buffer.read(cx).read(cx);
8343 let rename_range = rename.range.to_offset(&snapshot);
8344 let cursor_in_editor = snapshot
8345 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8346 .min(rename_range.end);
8347 drop(snapshot);
8348
8349 self.change_selections(None, cx, |s| {
8350 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8351 });
8352 } else {
8353 self.refresh_document_highlights(cx);
8354 }
8355
8356 Some(rename)
8357 }
8358
8359 pub fn pending_rename(&self) -> Option<&RenameState> {
8360 self.pending_rename.as_ref()
8361 }
8362
8363 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8364 let project = match &self.project {
8365 Some(project) => project.clone(),
8366 None => return None,
8367 };
8368
8369 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8370 }
8371
8372 fn perform_format(
8373 &mut self,
8374 project: Model<Project>,
8375 trigger: FormatTrigger,
8376 cx: &mut ViewContext<Self>,
8377 ) -> Task<Result<()>> {
8378 let buffer = self.buffer().clone();
8379 let buffers = buffer.read(cx).all_buffers();
8380
8381 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8382 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8383
8384 cx.spawn(|_, mut cx| async move {
8385 let transaction = futures::select_biased! {
8386 _ = timeout => {
8387 log::warn!("timed out waiting for formatting");
8388 None
8389 }
8390 transaction = format.log_err().fuse() => transaction,
8391 };
8392
8393 buffer
8394 .update(&mut cx, |buffer, cx| {
8395 if let Some(transaction) = transaction {
8396 if !buffer.is_singleton() {
8397 buffer.push_transaction(&transaction.0, cx);
8398 }
8399 }
8400
8401 cx.notify();
8402 })
8403 .ok();
8404
8405 Ok(())
8406 })
8407 }
8408
8409 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8410 if let Some(project) = self.project.clone() {
8411 self.buffer.update(cx, |multi_buffer, cx| {
8412 project.update(cx, |project, cx| {
8413 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8414 });
8415 })
8416 }
8417 }
8418
8419 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8420 cx.show_character_palette();
8421 }
8422
8423 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8424 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8425 let buffer = self.buffer.read(cx).snapshot(cx);
8426 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8427 let is_valid = buffer
8428 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8429 .any(|entry| {
8430 entry.diagnostic.is_primary
8431 && !entry.range.is_empty()
8432 && entry.range.start == primary_range_start
8433 && entry.diagnostic.message == active_diagnostics.primary_message
8434 });
8435
8436 if is_valid != active_diagnostics.is_valid {
8437 active_diagnostics.is_valid = is_valid;
8438 let mut new_styles = HashMap::default();
8439 for (block_id, diagnostic) in &active_diagnostics.blocks {
8440 new_styles.insert(
8441 *block_id,
8442 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8443 );
8444 }
8445 self.display_map
8446 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8447 }
8448 }
8449 }
8450
8451 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8452 self.dismiss_diagnostics(cx);
8453 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8454 let buffer = self.buffer.read(cx).snapshot(cx);
8455
8456 let mut primary_range = None;
8457 let mut primary_message = None;
8458 let mut group_end = Point::zero();
8459 let diagnostic_group = buffer
8460 .diagnostic_group::<Point>(group_id)
8461 .map(|entry| {
8462 if entry.range.end > group_end {
8463 group_end = entry.range.end;
8464 }
8465 if entry.diagnostic.is_primary {
8466 primary_range = Some(entry.range.clone());
8467 primary_message = Some(entry.diagnostic.message.clone());
8468 }
8469 entry
8470 })
8471 .collect::<Vec<_>>();
8472 let primary_range = primary_range?;
8473 let primary_message = primary_message?;
8474 let primary_range =
8475 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8476
8477 let blocks = display_map
8478 .insert_blocks(
8479 diagnostic_group.iter().map(|entry| {
8480 let diagnostic = entry.diagnostic.clone();
8481 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8482 BlockProperties {
8483 style: BlockStyle::Fixed,
8484 position: buffer.anchor_after(entry.range.start),
8485 height: message_height,
8486 render: diagnostic_block_renderer(diagnostic, true),
8487 disposition: BlockDisposition::Below,
8488 }
8489 }),
8490 cx,
8491 )
8492 .into_iter()
8493 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8494 .collect();
8495
8496 Some(ActiveDiagnosticGroup {
8497 primary_range,
8498 primary_message,
8499 blocks,
8500 is_valid: true,
8501 })
8502 });
8503 self.active_diagnostics.is_some()
8504 }
8505
8506 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8507 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8508 self.display_map.update(cx, |display_map, cx| {
8509 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8510 });
8511 cx.notify();
8512 }
8513 }
8514
8515 pub fn set_selections_from_remote(
8516 &mut self,
8517 selections: Vec<Selection<Anchor>>,
8518 pending_selection: Option<Selection<Anchor>>,
8519 cx: &mut ViewContext<Self>,
8520 ) {
8521 let old_cursor_position = self.selections.newest_anchor().head();
8522 self.selections.change_with(cx, |s| {
8523 s.select_anchors(selections);
8524 if let Some(pending_selection) = pending_selection {
8525 s.set_pending(pending_selection, SelectMode::Character);
8526 } else {
8527 s.clear_pending();
8528 }
8529 });
8530 self.selections_did_change(false, &old_cursor_position, cx);
8531 }
8532
8533 fn push_to_selection_history(&mut self) {
8534 self.selection_history.push(SelectionHistoryEntry {
8535 selections: self.selections.disjoint_anchors(),
8536 select_next_state: self.select_next_state.clone(),
8537 select_prev_state: self.select_prev_state.clone(),
8538 add_selections_state: self.add_selections_state.clone(),
8539 });
8540 }
8541
8542 pub fn transact(
8543 &mut self,
8544 cx: &mut ViewContext<Self>,
8545 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8546 ) -> Option<TransactionId> {
8547 self.start_transaction_at(Instant::now(), cx);
8548 update(self, cx);
8549 self.end_transaction_at(Instant::now(), cx)
8550 }
8551
8552 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8553 self.end_selection(cx);
8554 if let Some(tx_id) = self
8555 .buffer
8556 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8557 {
8558 self.selection_history
8559 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8560 cx.emit(EditorEvent::TransactionBegun {
8561 transaction_id: tx_id,
8562 })
8563 }
8564 }
8565
8566 fn end_transaction_at(
8567 &mut self,
8568 now: Instant,
8569 cx: &mut ViewContext<Self>,
8570 ) -> Option<TransactionId> {
8571 if let Some(tx_id) = self
8572 .buffer
8573 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8574 {
8575 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8576 *end_selections = Some(self.selections.disjoint_anchors());
8577 } else {
8578 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8579 }
8580
8581 cx.emit(EditorEvent::Edited);
8582 Some(tx_id)
8583 } else {
8584 None
8585 }
8586 }
8587
8588 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8589 let mut fold_ranges = Vec::new();
8590
8591 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8592
8593 let selections = self.selections.all_adjusted(cx);
8594 for selection in selections {
8595 let range = selection.range().sorted();
8596 let buffer_start_row = range.start.row;
8597
8598 for row in (0..=range.end.row).rev() {
8599 let fold_range = display_map.foldable_range(row);
8600
8601 if let Some(fold_range) = fold_range {
8602 if fold_range.end.row >= buffer_start_row {
8603 fold_ranges.push(fold_range);
8604 if row <= range.start.row {
8605 break;
8606 }
8607 }
8608 }
8609 }
8610 }
8611
8612 self.fold_ranges(fold_ranges, true, cx);
8613 }
8614
8615 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8616 let buffer_row = fold_at.buffer_row;
8617 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8618
8619 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8620 let autoscroll = self
8621 .selections
8622 .all::<Point>(cx)
8623 .iter()
8624 .any(|selection| fold_range.overlaps(&selection.range()));
8625
8626 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8627 }
8628 }
8629
8630 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8631 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8632 let buffer = &display_map.buffer_snapshot;
8633 let selections = self.selections.all::<Point>(cx);
8634 let ranges = selections
8635 .iter()
8636 .map(|s| {
8637 let range = s.display_range(&display_map).sorted();
8638 let mut start = range.start.to_point(&display_map);
8639 let mut end = range.end.to_point(&display_map);
8640 start.column = 0;
8641 end.column = buffer.line_len(end.row);
8642 start..end
8643 })
8644 .collect::<Vec<_>>();
8645
8646 self.unfold_ranges(ranges, true, true, cx);
8647 }
8648
8649 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8650 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8651
8652 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8653 ..Point::new(
8654 unfold_at.buffer_row,
8655 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8656 );
8657
8658 let autoscroll = self
8659 .selections
8660 .all::<Point>(cx)
8661 .iter()
8662 .any(|selection| selection.range().overlaps(&intersection_range));
8663
8664 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8665 }
8666
8667 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8668 let selections = self.selections.all::<Point>(cx);
8669 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8670 let line_mode = self.selections.line_mode;
8671 let ranges = selections.into_iter().map(|s| {
8672 if line_mode {
8673 let start = Point::new(s.start.row, 0);
8674 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8675 start..end
8676 } else {
8677 s.start..s.end
8678 }
8679 });
8680 self.fold_ranges(ranges, true, cx);
8681 }
8682
8683 pub fn fold_ranges<T: ToOffset + Clone>(
8684 &mut self,
8685 ranges: impl IntoIterator<Item = Range<T>>,
8686 auto_scroll: bool,
8687 cx: &mut ViewContext<Self>,
8688 ) {
8689 let mut ranges = ranges.into_iter().peekable();
8690 if ranges.peek().is_some() {
8691 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8692
8693 if auto_scroll {
8694 self.request_autoscroll(Autoscroll::fit(), cx);
8695 }
8696
8697 cx.notify();
8698 }
8699 }
8700
8701 pub fn unfold_ranges<T: ToOffset + Clone>(
8702 &mut self,
8703 ranges: impl IntoIterator<Item = Range<T>>,
8704 inclusive: bool,
8705 auto_scroll: bool,
8706 cx: &mut ViewContext<Self>,
8707 ) {
8708 let mut ranges = ranges.into_iter().peekable();
8709 if ranges.peek().is_some() {
8710 self.display_map
8711 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8712 if auto_scroll {
8713 self.request_autoscroll(Autoscroll::fit(), cx);
8714 }
8715
8716 cx.notify();
8717 }
8718 }
8719
8720 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8721 if hovered != self.gutter_hovered {
8722 self.gutter_hovered = hovered;
8723 cx.notify();
8724 }
8725 }
8726
8727 pub fn insert_blocks(
8728 &mut self,
8729 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8730 autoscroll: Option<Autoscroll>,
8731 cx: &mut ViewContext<Self>,
8732 ) -> Vec<BlockId> {
8733 let blocks = self
8734 .display_map
8735 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8736 if let Some(autoscroll) = autoscroll {
8737 self.request_autoscroll(autoscroll, cx);
8738 }
8739 blocks
8740 }
8741
8742 pub fn replace_blocks(
8743 &mut self,
8744 blocks: HashMap<BlockId, RenderBlock>,
8745 autoscroll: Option<Autoscroll>,
8746 cx: &mut ViewContext<Self>,
8747 ) {
8748 self.display_map
8749 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8750 if let Some(autoscroll) = autoscroll {
8751 self.request_autoscroll(autoscroll, cx);
8752 }
8753 }
8754
8755 pub fn remove_blocks(
8756 &mut self,
8757 block_ids: HashSet<BlockId>,
8758 autoscroll: Option<Autoscroll>,
8759 cx: &mut ViewContext<Self>,
8760 ) {
8761 self.display_map.update(cx, |display_map, cx| {
8762 display_map.remove_blocks(block_ids, cx)
8763 });
8764 if let Some(autoscroll) = autoscroll {
8765 self.request_autoscroll(autoscroll, cx);
8766 }
8767 }
8768
8769 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8770 self.display_map
8771 .update(cx, |map, cx| map.snapshot(cx))
8772 .longest_row()
8773 }
8774
8775 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8776 self.display_map
8777 .update(cx, |map, cx| map.snapshot(cx))
8778 .max_point()
8779 }
8780
8781 pub fn text(&self, cx: &AppContext) -> String {
8782 self.buffer.read(cx).read(cx).text()
8783 }
8784
8785 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8786 let text = self.text(cx);
8787 let text = text.trim();
8788
8789 if text.is_empty() {
8790 return None;
8791 }
8792
8793 Some(text.to_string())
8794 }
8795
8796 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8797 self.transact(cx, |this, cx| {
8798 this.buffer
8799 .read(cx)
8800 .as_singleton()
8801 .expect("you can only call set_text on editors for singleton buffers")
8802 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8803 });
8804 }
8805
8806 pub fn display_text(&self, cx: &mut AppContext) -> String {
8807 self.display_map
8808 .update(cx, |map, cx| map.snapshot(cx))
8809 .text()
8810 }
8811
8812 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8813 let mut wrap_guides = smallvec::smallvec![];
8814
8815 if self.show_wrap_guides == Some(false) {
8816 return wrap_guides;
8817 }
8818
8819 let settings = self.buffer.read(cx).settings_at(0, cx);
8820 if settings.show_wrap_guides {
8821 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8822 wrap_guides.push((soft_wrap as usize, true));
8823 }
8824 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8825 }
8826
8827 wrap_guides
8828 }
8829
8830 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8831 let settings = self.buffer.read(cx).settings_at(0, cx);
8832 let mode = self
8833 .soft_wrap_mode_override
8834 .unwrap_or_else(|| settings.soft_wrap);
8835 match mode {
8836 language_settings::SoftWrap::None => SoftWrap::None,
8837 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8838 language_settings::SoftWrap::PreferredLineLength => {
8839 SoftWrap::Column(settings.preferred_line_length)
8840 }
8841 }
8842 }
8843
8844 pub fn set_soft_wrap_mode(
8845 &mut self,
8846 mode: language_settings::SoftWrap,
8847 cx: &mut ViewContext<Self>,
8848 ) {
8849 self.soft_wrap_mode_override = Some(mode);
8850 cx.notify();
8851 }
8852
8853 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8854 let rem_size = cx.rem_size();
8855 self.display_map.update(cx, |map, cx| {
8856 map.set_font(
8857 style.text.font(),
8858 style.text.font_size.to_pixels(rem_size),
8859 cx,
8860 )
8861 });
8862 self.style = Some(style);
8863 }
8864
8865 #[cfg(any(test, feature = "test-support"))]
8866 pub fn style(&self) -> Option<&EditorStyle> {
8867 self.style.as_ref()
8868 }
8869
8870 // Called by the element. This method is not designed to be called outside of the editor
8871 // element's layout code because it does not notify when rewrapping is computed synchronously.
8872 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8873 self.display_map
8874 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8875 }
8876
8877 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8878 if self.soft_wrap_mode_override.is_some() {
8879 self.soft_wrap_mode_override.take();
8880 } else {
8881 let soft_wrap = match self.soft_wrap_mode(cx) {
8882 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8883 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8884 };
8885 self.soft_wrap_mode_override = Some(soft_wrap);
8886 }
8887 cx.notify();
8888 }
8889
8890 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
8891 let mut editor_settings = EditorSettings::get_global(cx).clone();
8892 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
8893 EditorSettings::override_global(editor_settings, cx);
8894 }
8895
8896 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8897 self.show_gutter = show_gutter;
8898 cx.notify();
8899 }
8900
8901 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8902 self.show_wrap_guides = Some(show_gutter);
8903 cx.notify();
8904 }
8905
8906 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8907 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8908 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8909 cx.reveal_path(&file.abs_path(cx));
8910 }
8911 }
8912 }
8913
8914 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8915 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8916 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8917 if let Some(path) = file.abs_path(cx).to_str() {
8918 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8919 }
8920 }
8921 }
8922 }
8923
8924 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8925 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8926 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8927 if let Some(path) = file.path().to_str() {
8928 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8929 }
8930 }
8931 }
8932 }
8933
8934 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8935 use git::permalink::{build_permalink, BuildPermalinkParams};
8936
8937 let (path, repo) = maybe!({
8938 let project_handle = self.project.as_ref()?.clone();
8939 let project = project_handle.read(cx);
8940 let buffer = self.buffer().read(cx).as_singleton()?;
8941 let path = buffer
8942 .read(cx)
8943 .file()?
8944 .as_local()?
8945 .path()
8946 .to_str()?
8947 .to_string();
8948 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
8949 Some((path, repo))
8950 })
8951 .ok_or_else(|| anyhow!("unable to open git repository"))?;
8952
8953 const REMOTE_NAME: &str = "origin";
8954 let origin_url = repo
8955 .lock()
8956 .remote_url(REMOTE_NAME)
8957 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8958 let sha = repo
8959 .lock()
8960 .head_sha()
8961 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8962 let selections = self.selections.all::<Point>(cx);
8963 let selection = selections.iter().peekable().next();
8964
8965 build_permalink(BuildPermalinkParams {
8966 remote_url: &origin_url,
8967 sha: &sha,
8968 path: &path,
8969 selection: selection.map(|selection| selection.range()),
8970 })
8971 }
8972
8973 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8974 let permalink = self.get_permalink_to_line(cx);
8975
8976 match permalink {
8977 Ok(permalink) => {
8978 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8979 }
8980 Err(err) => {
8981 let message = format!("Failed to copy permalink: {err}");
8982
8983 Err::<(), anyhow::Error>(err).log_err();
8984
8985 if let Some(workspace) = self.workspace() {
8986 workspace.update(cx, |workspace, cx| {
8987 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8988 })
8989 }
8990 }
8991 }
8992 }
8993
8994 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8995 let permalink = self.get_permalink_to_line(cx);
8996
8997 match permalink {
8998 Ok(permalink) => {
8999 cx.open_url(permalink.as_ref());
9000 }
9001 Err(err) => {
9002 let message = format!("Failed to open permalink: {err}");
9003
9004 Err::<(), anyhow::Error>(err).log_err();
9005
9006 if let Some(workspace) = self.workspace() {
9007 workspace.update(cx, |workspace, cx| {
9008 workspace.show_toast(Toast::new(0x45a8978, message), cx)
9009 })
9010 }
9011 }
9012 }
9013 }
9014
9015 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9016 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9017 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9018 pub fn highlight_rows<T: 'static>(
9019 &mut self,
9020 rows: Range<Anchor>,
9021 color: Option<Hsla>,
9022 cx: &mut ViewContext<Self>,
9023 ) {
9024 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9025 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9026 hash_map::Entry::Occupied(o) => {
9027 let row_highlights = o.into_mut();
9028 let existing_highlight_index =
9029 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9030 highlight_range
9031 .start
9032 .cmp(&rows.start, &multi_buffer_snapshot)
9033 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
9034 });
9035 match color {
9036 Some(color) => {
9037 let insert_index = match existing_highlight_index {
9038 Ok(i) => i,
9039 Err(i) => i,
9040 };
9041 row_highlights.insert(
9042 insert_index,
9043 (post_inc(&mut self.highlight_order), rows, color),
9044 );
9045 }
9046 None => {
9047 if let Ok(i) = existing_highlight_index {
9048 row_highlights.remove(i);
9049 }
9050 }
9051 }
9052 }
9053 hash_map::Entry::Vacant(v) => {
9054 if let Some(color) = color {
9055 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9056 }
9057 }
9058 }
9059 }
9060
9061 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9062 pub fn clear_row_highlights<T: 'static>(&mut self) {
9063 self.highlighted_rows.remove(&TypeId::of::<T>());
9064 }
9065
9066 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9067 pub fn highlighted_rows<T: 'static>(
9068 &self,
9069 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
9070 Some(
9071 self.highlighted_rows
9072 .get(&TypeId::of::<T>())?
9073 .iter()
9074 .map(|(_, range, color)| (range, color)),
9075 )
9076 }
9077
9078 // Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9079 // Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9080 pub fn highlighted_display_rows(&mut self, cx: &mut WindowContext) -> BTreeMap<u32, Hsla> {
9081 let snapshot = self.snapshot(cx);
9082 let mut used_highlight_orders = HashMap::default();
9083 self.highlighted_rows
9084 .iter()
9085 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9086 .fold(
9087 BTreeMap::<u32, Hsla>::new(),
9088 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9089 let start_row = anchor_range.start.to_display_point(&snapshot).row();
9090 let end_row = anchor_range.end.to_display_point(&snapshot).row();
9091 for row in start_row..=end_row {
9092 let used_index =
9093 used_highlight_orders.entry(row).or_insert(*highlight_order);
9094 if highlight_order >= used_index {
9095 *used_index = *highlight_order;
9096 unique_rows.insert(row, *hsla);
9097 }
9098 }
9099 unique_rows
9100 },
9101 )
9102 }
9103
9104 pub fn highlight_background<T: 'static>(
9105 &mut self,
9106 ranges: Vec<Range<Anchor>>,
9107 color_fetcher: fn(&ThemeColors) -> Hsla,
9108 cx: &mut ViewContext<Self>,
9109 ) {
9110 let snapshot = self.snapshot(cx);
9111 // this is to try and catch a panic sooner
9112 for range in &ranges {
9113 snapshot
9114 .buffer_snapshot
9115 .summary_for_anchor::<usize>(&range.start);
9116 snapshot
9117 .buffer_snapshot
9118 .summary_for_anchor::<usize>(&range.end);
9119 }
9120
9121 self.background_highlights
9122 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
9123 cx.notify();
9124 }
9125
9126 pub fn clear_background_highlights<T: 'static>(
9127 &mut self,
9128 _cx: &mut ViewContext<Self>,
9129 ) -> Option<BackgroundHighlight> {
9130 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
9131 text_highlights
9132 }
9133
9134 #[cfg(feature = "test-support")]
9135 pub fn all_text_background_highlights(
9136 &mut self,
9137 cx: &mut ViewContext<Self>,
9138 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9139 let snapshot = self.snapshot(cx);
9140 let buffer = &snapshot.buffer_snapshot;
9141 let start = buffer.anchor_before(0);
9142 let end = buffer.anchor_after(buffer.len());
9143 let theme = cx.theme().colors();
9144 self.background_highlights_in_range(start..end, &snapshot, theme)
9145 }
9146
9147 fn document_highlights_for_position<'a>(
9148 &'a self,
9149 position: Anchor,
9150 buffer: &'a MultiBufferSnapshot,
9151 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9152 let read_highlights = self
9153 .background_highlights
9154 .get(&TypeId::of::<DocumentHighlightRead>())
9155 .map(|h| &h.1);
9156 let write_highlights = self
9157 .background_highlights
9158 .get(&TypeId::of::<DocumentHighlightWrite>())
9159 .map(|h| &h.1);
9160 let left_position = position.bias_left(buffer);
9161 let right_position = position.bias_right(buffer);
9162 read_highlights
9163 .into_iter()
9164 .chain(write_highlights)
9165 .flat_map(move |ranges| {
9166 let start_ix = match ranges.binary_search_by(|probe| {
9167 let cmp = probe.end.cmp(&left_position, buffer);
9168 if cmp.is_ge() {
9169 Ordering::Greater
9170 } else {
9171 Ordering::Less
9172 }
9173 }) {
9174 Ok(i) | Err(i) => i,
9175 };
9176
9177 ranges[start_ix..]
9178 .iter()
9179 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9180 })
9181 }
9182
9183 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9184 self.background_highlights
9185 .get(&TypeId::of::<T>())
9186 .map_or(false, |(_, highlights)| !highlights.is_empty())
9187 }
9188
9189 pub fn background_highlights_in_range(
9190 &self,
9191 search_range: Range<Anchor>,
9192 display_snapshot: &DisplaySnapshot,
9193 theme: &ThemeColors,
9194 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9195 let mut results = Vec::new();
9196 for (color_fetcher, ranges) in self.background_highlights.values() {
9197 let color = color_fetcher(theme);
9198 let start_ix = match ranges.binary_search_by(|probe| {
9199 let cmp = probe
9200 .end
9201 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9202 if cmp.is_gt() {
9203 Ordering::Greater
9204 } else {
9205 Ordering::Less
9206 }
9207 }) {
9208 Ok(i) | Err(i) => i,
9209 };
9210 for range in &ranges[start_ix..] {
9211 if range
9212 .start
9213 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9214 .is_ge()
9215 {
9216 break;
9217 }
9218
9219 let start = range.start.to_display_point(&display_snapshot);
9220 let end = range.end.to_display_point(&display_snapshot);
9221 results.push((start..end, color))
9222 }
9223 }
9224 results
9225 }
9226
9227 pub fn background_highlight_row_ranges<T: 'static>(
9228 &self,
9229 search_range: Range<Anchor>,
9230 display_snapshot: &DisplaySnapshot,
9231 count: usize,
9232 ) -> Vec<RangeInclusive<DisplayPoint>> {
9233 let mut results = Vec::new();
9234 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9235 return vec![];
9236 };
9237
9238 let start_ix = match ranges.binary_search_by(|probe| {
9239 let cmp = probe
9240 .end
9241 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9242 if cmp.is_gt() {
9243 Ordering::Greater
9244 } else {
9245 Ordering::Less
9246 }
9247 }) {
9248 Ok(i) | Err(i) => i,
9249 };
9250 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9251 if let (Some(start_display), Some(end_display)) = (start, end) {
9252 results.push(
9253 start_display.to_display_point(display_snapshot)
9254 ..=end_display.to_display_point(display_snapshot),
9255 );
9256 }
9257 };
9258 let mut start_row: Option<Point> = None;
9259 let mut end_row: Option<Point> = None;
9260 if ranges.len() > count {
9261 return Vec::new();
9262 }
9263 for range in &ranges[start_ix..] {
9264 if range
9265 .start
9266 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9267 .is_ge()
9268 {
9269 break;
9270 }
9271 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9272 if let Some(current_row) = &end_row {
9273 if end.row == current_row.row {
9274 continue;
9275 }
9276 }
9277 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9278 if start_row.is_none() {
9279 assert_eq!(end_row, None);
9280 start_row = Some(start);
9281 end_row = Some(end);
9282 continue;
9283 }
9284 if let Some(current_end) = end_row.as_mut() {
9285 if start.row > current_end.row + 1 {
9286 push_region(start_row, end_row);
9287 start_row = Some(start);
9288 end_row = Some(end);
9289 } else {
9290 // Merge two hunks.
9291 *current_end = end;
9292 }
9293 } else {
9294 unreachable!();
9295 }
9296 }
9297 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9298 push_region(start_row, end_row);
9299 results
9300 }
9301
9302 /// Get the text ranges corresponding to the redaction query
9303 pub fn redacted_ranges(
9304 &self,
9305 search_range: Range<Anchor>,
9306 display_snapshot: &DisplaySnapshot,
9307 cx: &WindowContext,
9308 ) -> Vec<Range<DisplayPoint>> {
9309 display_snapshot
9310 .buffer_snapshot
9311 .redacted_ranges(search_range, |file| {
9312 if let Some(file) = file {
9313 file.is_private()
9314 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
9315 } else {
9316 false
9317 }
9318 })
9319 .map(|range| {
9320 range.start.to_display_point(display_snapshot)
9321 ..range.end.to_display_point(display_snapshot)
9322 })
9323 .collect()
9324 }
9325
9326 pub fn highlight_text<T: 'static>(
9327 &mut self,
9328 ranges: Vec<Range<Anchor>>,
9329 style: HighlightStyle,
9330 cx: &mut ViewContext<Self>,
9331 ) {
9332 self.display_map.update(cx, |map, _| {
9333 map.highlight_text(TypeId::of::<T>(), ranges, style)
9334 });
9335 cx.notify();
9336 }
9337
9338 pub(crate) fn highlight_inlays<T: 'static>(
9339 &mut self,
9340 highlights: Vec<InlayHighlight>,
9341 style: HighlightStyle,
9342 cx: &mut ViewContext<Self>,
9343 ) {
9344 self.display_map.update(cx, |map, _| {
9345 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9346 });
9347 cx.notify();
9348 }
9349
9350 pub fn text_highlights<'a, T: 'static>(
9351 &'a self,
9352 cx: &'a AppContext,
9353 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9354 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9355 }
9356
9357 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9358 let cleared = self
9359 .display_map
9360 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9361 if cleared {
9362 cx.notify();
9363 }
9364 }
9365
9366 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9367 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9368 && self.focus_handle.is_focused(cx)
9369 }
9370
9371 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9372 cx.notify();
9373 }
9374
9375 fn on_buffer_event(
9376 &mut self,
9377 multibuffer: Model<MultiBuffer>,
9378 event: &multi_buffer::Event,
9379 cx: &mut ViewContext<Self>,
9380 ) {
9381 match event {
9382 multi_buffer::Event::Edited {
9383 singleton_buffer_edited,
9384 } => {
9385 self.refresh_active_diagnostics(cx);
9386 self.refresh_code_actions(cx);
9387 if self.has_active_copilot_suggestion(cx) {
9388 self.update_visible_copilot_suggestion(cx);
9389 }
9390 cx.emit(EditorEvent::BufferEdited);
9391 cx.emit(SearchEvent::MatchesInvalidated);
9392
9393 if *singleton_buffer_edited {
9394 if let Some(project) = &self.project {
9395 let project = project.read(cx);
9396 let languages_affected = multibuffer
9397 .read(cx)
9398 .all_buffers()
9399 .into_iter()
9400 .filter_map(|buffer| {
9401 let buffer = buffer.read(cx);
9402 let language = buffer.language()?;
9403 if project.is_local()
9404 && project.language_servers_for_buffer(buffer, cx).count() == 0
9405 {
9406 None
9407 } else {
9408 Some(language)
9409 }
9410 })
9411 .cloned()
9412 .collect::<HashSet<_>>();
9413 if !languages_affected.is_empty() {
9414 self.refresh_inlay_hints(
9415 InlayHintRefreshReason::BufferEdited(languages_affected),
9416 cx,
9417 );
9418 }
9419 }
9420 }
9421
9422 let Some(project) = &self.project else { return };
9423 let telemetry = project.read(cx).client().telemetry().clone();
9424 telemetry.log_edit_event("editor");
9425 }
9426 multi_buffer::Event::ExcerptsAdded {
9427 buffer,
9428 predecessor,
9429 excerpts,
9430 } => {
9431 cx.emit(EditorEvent::ExcerptsAdded {
9432 buffer: buffer.clone(),
9433 predecessor: *predecessor,
9434 excerpts: excerpts.clone(),
9435 });
9436 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9437 }
9438 multi_buffer::Event::ExcerptsRemoved { ids } => {
9439 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9440 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9441 }
9442 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9443 multi_buffer::Event::LanguageChanged => {
9444 cx.emit(EditorEvent::Reparsed);
9445 cx.notify();
9446 }
9447 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9448 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9449 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9450 cx.emit(EditorEvent::TitleChanged)
9451 }
9452 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
9453 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9454 multi_buffer::Event::DiagnosticsUpdated => {
9455 self.refresh_active_diagnostics(cx);
9456 }
9457 _ => {}
9458 };
9459 }
9460
9461 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9462 cx.notify();
9463 }
9464
9465 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9466 self.refresh_copilot_suggestions(true, cx);
9467 self.refresh_inlay_hints(
9468 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9469 self.selections.newest_anchor().head(),
9470 &self.buffer.read(cx).snapshot(cx),
9471 cx,
9472 )),
9473 cx,
9474 );
9475 let editor_settings = EditorSettings::get_global(cx);
9476 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9477 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9478 cx.notify();
9479 }
9480
9481 pub fn set_searchable(&mut self, searchable: bool) {
9482 self.searchable = searchable;
9483 }
9484
9485 pub fn searchable(&self) -> bool {
9486 self.searchable
9487 }
9488
9489 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9490 self.open_excerpts_common(true, cx)
9491 }
9492
9493 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9494 self.open_excerpts_common(false, cx)
9495 }
9496
9497 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9498 let buffer = self.buffer.read(cx);
9499 if buffer.is_singleton() {
9500 cx.propagate();
9501 return;
9502 }
9503
9504 let Some(workspace) = self.workspace() else {
9505 cx.propagate();
9506 return;
9507 };
9508
9509 let mut new_selections_by_buffer = HashMap::default();
9510 for selection in self.selections.all::<usize>(cx) {
9511 for (buffer, mut range, _) in
9512 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9513 {
9514 if selection.reversed {
9515 mem::swap(&mut range.start, &mut range.end);
9516 }
9517 new_selections_by_buffer
9518 .entry(buffer)
9519 .or_insert(Vec::new())
9520 .push(range)
9521 }
9522 }
9523
9524 // We defer the pane interaction because we ourselves are a workspace item
9525 // and activating a new item causes the pane to call a method on us reentrantly,
9526 // which panics if we're on the stack.
9527 cx.window_context().defer(move |cx| {
9528 workspace.update(cx, |workspace, cx| {
9529 let pane = if split {
9530 workspace.adjacent_pane(cx)
9531 } else {
9532 workspace.active_pane().clone()
9533 };
9534
9535 for (buffer, ranges) in new_selections_by_buffer {
9536 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9537 editor.update(cx, |editor, cx| {
9538 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9539 s.select_ranges(ranges);
9540 });
9541 });
9542 }
9543 })
9544 });
9545 }
9546
9547 fn jump(
9548 &mut self,
9549 path: ProjectPath,
9550 position: Point,
9551 anchor: language::Anchor,
9552 cx: &mut ViewContext<Self>,
9553 ) {
9554 let workspace = self.workspace();
9555 cx.spawn(|_, mut cx| async move {
9556 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9557 let editor = workspace.update(&mut cx, |workspace, cx| {
9558 workspace.open_path(path, None, true, cx)
9559 })?;
9560 let editor = editor
9561 .await?
9562 .downcast::<Editor>()
9563 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9564 .downgrade();
9565 editor.update(&mut cx, |editor, cx| {
9566 let buffer = editor
9567 .buffer()
9568 .read(cx)
9569 .as_singleton()
9570 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9571 let buffer = buffer.read(cx);
9572 let cursor = if buffer.can_resolve(&anchor) {
9573 language::ToPoint::to_point(&anchor, buffer)
9574 } else {
9575 buffer.clip_point(position, Bias::Left)
9576 };
9577
9578 let nav_history = editor.nav_history.take();
9579 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9580 s.select_ranges([cursor..cursor]);
9581 });
9582 editor.nav_history = nav_history;
9583
9584 anyhow::Ok(())
9585 })??;
9586
9587 anyhow::Ok(())
9588 })
9589 .detach_and_log_err(cx);
9590 }
9591
9592 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9593 let snapshot = self.buffer.read(cx).read(cx);
9594 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9595 Some(
9596 ranges
9597 .iter()
9598 .map(move |range| {
9599 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9600 })
9601 .collect(),
9602 )
9603 }
9604
9605 fn selection_replacement_ranges(
9606 &self,
9607 range: Range<OffsetUtf16>,
9608 cx: &AppContext,
9609 ) -> Vec<Range<OffsetUtf16>> {
9610 let selections = self.selections.all::<OffsetUtf16>(cx);
9611 let newest_selection = selections
9612 .iter()
9613 .max_by_key(|selection| selection.id)
9614 .unwrap();
9615 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9616 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9617 let snapshot = self.buffer.read(cx).read(cx);
9618 selections
9619 .into_iter()
9620 .map(|mut selection| {
9621 selection.start.0 =
9622 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9623 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9624 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9625 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9626 })
9627 .collect()
9628 }
9629
9630 fn report_copilot_event(
9631 &self,
9632 suggestion_id: Option<String>,
9633 suggestion_accepted: bool,
9634 cx: &AppContext,
9635 ) {
9636 let Some(project) = &self.project else { return };
9637
9638 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
9639 let file_extension = self
9640 .buffer
9641 .read(cx)
9642 .as_singleton()
9643 .and_then(|b| b.read(cx).file())
9644 .and_then(|file| Path::new(file.file_name(cx)).extension())
9645 .and_then(|e| e.to_str())
9646 .map(|a| a.to_string());
9647
9648 let telemetry = project.read(cx).client().telemetry().clone();
9649
9650 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
9651 }
9652
9653 fn report_editor_event(
9654 &self,
9655 operation: &'static str,
9656 file_extension: Option<String>,
9657 cx: &AppContext,
9658 ) {
9659 if cfg!(any(test, feature = "test-support")) {
9660 return;
9661 }
9662
9663 let Some(project) = &self.project else { return };
9664
9665 // If None, we are in a file without an extension
9666 let file = self
9667 .buffer
9668 .read(cx)
9669 .as_singleton()
9670 .and_then(|b| b.read(cx).file());
9671 let file_extension = file_extension.or(file
9672 .as_ref()
9673 .and_then(|file| Path::new(file.file_name(cx)).extension())
9674 .and_then(|e| e.to_str())
9675 .map(|a| a.to_string()));
9676
9677 let vim_mode = cx
9678 .global::<SettingsStore>()
9679 .raw_user_settings()
9680 .get("vim_mode")
9681 == Some(&serde_json::Value::Bool(true));
9682 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9683 let copilot_enabled_for_language = self
9684 .buffer
9685 .read(cx)
9686 .settings_at(0, cx)
9687 .show_copilot_suggestions;
9688
9689 let telemetry = project.read(cx).client().telemetry().clone();
9690 telemetry.report_editor_event(
9691 file_extension,
9692 vim_mode,
9693 operation,
9694 copilot_enabled,
9695 copilot_enabled_for_language,
9696 )
9697 }
9698
9699 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9700 /// with each line being an array of {text, highlight} objects.
9701 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9702 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9703 return;
9704 };
9705
9706 #[derive(Serialize)]
9707 struct Chunk<'a> {
9708 text: String,
9709 highlight: Option<&'a str>,
9710 }
9711
9712 let snapshot = buffer.read(cx).snapshot();
9713 let range = self
9714 .selected_text_range(cx)
9715 .and_then(|selected_range| {
9716 if selected_range.is_empty() {
9717 None
9718 } else {
9719 Some(selected_range)
9720 }
9721 })
9722 .unwrap_or_else(|| 0..snapshot.len());
9723
9724 let chunks = snapshot.chunks(range, true);
9725 let mut lines = Vec::new();
9726 let mut line: VecDeque<Chunk> = VecDeque::new();
9727
9728 let Some(style) = self.style.as_ref() else {
9729 return;
9730 };
9731
9732 for chunk in chunks {
9733 let highlight = chunk
9734 .syntax_highlight_id
9735 .and_then(|id| id.name(&style.syntax));
9736 let mut chunk_lines = chunk.text.split('\n').peekable();
9737 while let Some(text) = chunk_lines.next() {
9738 let mut merged_with_last_token = false;
9739 if let Some(last_token) = line.back_mut() {
9740 if last_token.highlight == highlight {
9741 last_token.text.push_str(text);
9742 merged_with_last_token = true;
9743 }
9744 }
9745
9746 if !merged_with_last_token {
9747 line.push_back(Chunk {
9748 text: text.into(),
9749 highlight,
9750 });
9751 }
9752
9753 if chunk_lines.peek().is_some() {
9754 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9755 line.pop_front();
9756 }
9757 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9758 line.pop_back();
9759 }
9760
9761 lines.push(mem::take(&mut line));
9762 }
9763 }
9764 }
9765
9766 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9767 return;
9768 };
9769 cx.write_to_clipboard(ClipboardItem::new(lines));
9770 }
9771
9772 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9773 &self.inlay_hint_cache
9774 }
9775
9776 pub fn replay_insert_event(
9777 &mut self,
9778 text: &str,
9779 relative_utf16_range: Option<Range<isize>>,
9780 cx: &mut ViewContext<Self>,
9781 ) {
9782 if !self.input_enabled {
9783 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9784 return;
9785 }
9786 if let Some(relative_utf16_range) = relative_utf16_range {
9787 let selections = self.selections.all::<OffsetUtf16>(cx);
9788 self.change_selections(None, cx, |s| {
9789 let new_ranges = selections.into_iter().map(|range| {
9790 let start = OffsetUtf16(
9791 range
9792 .head()
9793 .0
9794 .saturating_add_signed(relative_utf16_range.start),
9795 );
9796 let end = OffsetUtf16(
9797 range
9798 .head()
9799 .0
9800 .saturating_add_signed(relative_utf16_range.end),
9801 );
9802 start..end
9803 });
9804 s.select_ranges(new_ranges);
9805 });
9806 }
9807
9808 self.handle_input(text, cx);
9809 }
9810
9811 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9812 let Some(project) = self.project.as_ref() else {
9813 return false;
9814 };
9815 let project = project.read(cx);
9816
9817 let mut supports = false;
9818 self.buffer().read(cx).for_each_buffer(|buffer| {
9819 if !supports {
9820 supports = project
9821 .language_servers_for_buffer(buffer.read(cx), cx)
9822 .any(
9823 |(_, server)| match server.capabilities().inlay_hint_provider {
9824 Some(lsp::OneOf::Left(enabled)) => enabled,
9825 Some(lsp::OneOf::Right(_)) => true,
9826 None => false,
9827 },
9828 )
9829 }
9830 });
9831 supports
9832 }
9833
9834 pub fn focus(&self, cx: &mut WindowContext) {
9835 cx.focus(&self.focus_handle)
9836 }
9837
9838 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9839 self.focus_handle.is_focused(cx)
9840 }
9841
9842 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9843 cx.emit(EditorEvent::Focused);
9844
9845 if let Some(rename) = self.pending_rename.as_ref() {
9846 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9847 cx.focus(&rename_editor_focus_handle);
9848 } else {
9849 self.blink_manager.update(cx, BlinkManager::enable);
9850 self.show_cursor_names(cx);
9851 self.buffer.update(cx, |buffer, cx| {
9852 buffer.finalize_last_transaction(cx);
9853 if self.leader_peer_id.is_none() {
9854 buffer.set_active_selections(
9855 &self.selections.disjoint_anchors(),
9856 self.selections.line_mode,
9857 self.cursor_shape,
9858 cx,
9859 );
9860 }
9861 });
9862 }
9863 }
9864
9865 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9866 self.blink_manager.update(cx, BlinkManager::disable);
9867 self.buffer
9868 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9869 self.hide_context_menu(cx);
9870 hide_hover(self, cx);
9871 cx.emit(EditorEvent::Blurred);
9872 cx.notify();
9873 }
9874
9875 pub fn register_action<A: Action>(
9876 &mut self,
9877 listener: impl Fn(&A, &mut WindowContext) + 'static,
9878 ) -> &mut Self {
9879 let listener = Arc::new(listener);
9880
9881 self.editor_actions.push(Box::new(move |cx| {
9882 let _view = cx.view().clone();
9883 let cx = cx.window_context();
9884 let listener = listener.clone();
9885 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9886 let action = action.downcast_ref().unwrap();
9887 if phase == DispatchPhase::Bubble {
9888 listener(action, cx)
9889 }
9890 })
9891 }));
9892 self
9893 }
9894}
9895
9896pub trait CollaborationHub {
9897 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9898 fn user_participant_indices<'a>(
9899 &self,
9900 cx: &'a AppContext,
9901 ) -> &'a HashMap<u64, ParticipantIndex>;
9902 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9903}
9904
9905impl CollaborationHub for Model<Project> {
9906 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9907 self.read(cx).collaborators()
9908 }
9909
9910 fn user_participant_indices<'a>(
9911 &self,
9912 cx: &'a AppContext,
9913 ) -> &'a HashMap<u64, ParticipantIndex> {
9914 self.read(cx).user_store().read(cx).participant_indices()
9915 }
9916
9917 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9918 let this = self.read(cx);
9919 let user_ids = this.collaborators().values().map(|c| c.user_id);
9920 this.user_store().read_with(cx, |user_store, cx| {
9921 user_store.participant_names(user_ids, cx)
9922 })
9923 }
9924}
9925
9926pub trait CompletionProvider {
9927 fn completions(
9928 &self,
9929 buffer: &Model<Buffer>,
9930 buffer_position: text::Anchor,
9931 cx: &mut ViewContext<Editor>,
9932 ) -> Task<Result<Vec<Completion>>>;
9933
9934 fn resolve_completions(
9935 &self,
9936 completion_indices: Vec<usize>,
9937 completions: Arc<RwLock<Box<[Completion]>>>,
9938 cx: &mut ViewContext<Editor>,
9939 ) -> Task<Result<bool>>;
9940
9941 fn apply_additional_edits_for_completion(
9942 &self,
9943 buffer: Model<Buffer>,
9944 completion: Completion,
9945 push_to_history: bool,
9946 cx: &mut ViewContext<Editor>,
9947 ) -> Task<Result<Option<language::Transaction>>>;
9948}
9949
9950impl CompletionProvider for Model<Project> {
9951 fn completions(
9952 &self,
9953 buffer: &Model<Buffer>,
9954 buffer_position: text::Anchor,
9955 cx: &mut ViewContext<Editor>,
9956 ) -> Task<Result<Vec<Completion>>> {
9957 self.update(cx, |project, cx| {
9958 project.completions(&buffer, buffer_position, cx)
9959 })
9960 }
9961
9962 fn resolve_completions(
9963 &self,
9964 completion_indices: Vec<usize>,
9965 completions: Arc<RwLock<Box<[Completion]>>>,
9966 cx: &mut ViewContext<Editor>,
9967 ) -> Task<Result<bool>> {
9968 self.update(cx, |project, cx| {
9969 project.resolve_completions(completion_indices, completions, cx)
9970 })
9971 }
9972
9973 fn apply_additional_edits_for_completion(
9974 &self,
9975 buffer: Model<Buffer>,
9976 completion: Completion,
9977 push_to_history: bool,
9978 cx: &mut ViewContext<Editor>,
9979 ) -> Task<Result<Option<language::Transaction>>> {
9980 self.update(cx, |project, cx| {
9981 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9982 })
9983 }
9984}
9985
9986fn inlay_hint_settings(
9987 location: Anchor,
9988 snapshot: &MultiBufferSnapshot,
9989 cx: &mut ViewContext<'_, Editor>,
9990) -> InlayHintSettings {
9991 let file = snapshot.file_at(location);
9992 let language = snapshot.language_at(location);
9993 let settings = all_language_settings(file, cx);
9994 settings
9995 .language(language.map(|l| l.name()).as_deref())
9996 .inlay_hints
9997}
9998
9999fn consume_contiguous_rows(
10000 contiguous_row_selections: &mut Vec<Selection<Point>>,
10001 selection: &Selection<Point>,
10002 display_map: &DisplaySnapshot,
10003 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10004) -> (u32, u32) {
10005 contiguous_row_selections.push(selection.clone());
10006 let start_row = selection.start.row;
10007 let mut end_row = ending_row(selection, display_map);
10008
10009 while let Some(next_selection) = selections.peek() {
10010 if next_selection.start.row <= end_row {
10011 end_row = ending_row(next_selection, display_map);
10012 contiguous_row_selections.push(selections.next().unwrap().clone());
10013 } else {
10014 break;
10015 }
10016 }
10017 (start_row, end_row)
10018}
10019
10020fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
10021 if next_selection.end.column > 0 || next_selection.is_empty() {
10022 display_map.next_line_boundary(next_selection.end).0.row + 1
10023 } else {
10024 next_selection.end.row
10025 }
10026}
10027
10028impl EditorSnapshot {
10029 pub fn remote_selections_in_range<'a>(
10030 &'a self,
10031 range: &'a Range<Anchor>,
10032 collaboration_hub: &dyn CollaborationHub,
10033 cx: &'a AppContext,
10034 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10035 let participant_names = collaboration_hub.user_names(cx);
10036 let participant_indices = collaboration_hub.user_participant_indices(cx);
10037 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10038 let collaborators_by_replica_id = collaborators_by_peer_id
10039 .iter()
10040 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10041 .collect::<HashMap<_, _>>();
10042 self.buffer_snapshot
10043 .remote_selections_in_range(range)
10044 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10045 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10046 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10047 let user_name = participant_names.get(&collaborator.user_id).cloned();
10048 Some(RemoteSelection {
10049 replica_id,
10050 selection,
10051 cursor_shape,
10052 line_mode,
10053 participant_index,
10054 peer_id: collaborator.peer_id,
10055 user_name,
10056 })
10057 })
10058 }
10059
10060 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10061 self.display_snapshot.buffer_snapshot.language_at(position)
10062 }
10063
10064 pub fn is_focused(&self) -> bool {
10065 self.is_focused
10066 }
10067
10068 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10069 self.placeholder_text.as_ref()
10070 }
10071
10072 pub fn scroll_position(&self) -> gpui::Point<f32> {
10073 self.scroll_anchor.scroll_position(&self.display_snapshot)
10074 }
10075
10076 pub fn gutter_dimensions(
10077 &self,
10078 font_id: FontId,
10079 font_size: Pixels,
10080 em_width: Pixels,
10081 max_line_number_width: Pixels,
10082 cx: &AppContext,
10083 ) -> GutterDimensions {
10084 if !self.show_gutter {
10085 return GutterDimensions::default();
10086 }
10087 let descent = cx.text_system().descent(font_id, font_size);
10088
10089 let show_git_gutter = matches!(
10090 ProjectSettings::get_global(cx).git.git_gutter,
10091 Some(GitGutterSetting::TrackedFiles)
10092 );
10093 let gutter_settings = EditorSettings::get_global(cx).gutter;
10094
10095 let line_gutter_width = if gutter_settings.line_numbers {
10096 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10097 let min_width_for_number_on_gutter = em_width * 4.0;
10098 max_line_number_width.max(min_width_for_number_on_gutter)
10099 } else {
10100 0.0.into()
10101 };
10102
10103 let left_padding = if gutter_settings.code_actions {
10104 em_width * 3.0
10105 } else if show_git_gutter && gutter_settings.line_numbers {
10106 em_width * 2.0
10107 } else if show_git_gutter || gutter_settings.line_numbers {
10108 em_width
10109 } else {
10110 px(0.)
10111 };
10112
10113 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
10114 em_width * 4.0
10115 } else if gutter_settings.folds {
10116 em_width * 3.0
10117 } else if gutter_settings.line_numbers {
10118 em_width
10119 } else {
10120 px(0.)
10121 };
10122
10123 GutterDimensions {
10124 left_padding,
10125 right_padding,
10126 width: line_gutter_width + left_padding + right_padding,
10127 margin: -descent,
10128 }
10129 }
10130}
10131
10132impl Deref for EditorSnapshot {
10133 type Target = DisplaySnapshot;
10134
10135 fn deref(&self) -> &Self::Target {
10136 &self.display_snapshot
10137 }
10138}
10139
10140#[derive(Clone, Debug, PartialEq, Eq)]
10141pub enum EditorEvent {
10142 InputIgnored {
10143 text: Arc<str>,
10144 },
10145 InputHandled {
10146 utf16_range_to_replace: Option<Range<isize>>,
10147 text: Arc<str>,
10148 },
10149 ExcerptsAdded {
10150 buffer: Model<Buffer>,
10151 predecessor: ExcerptId,
10152 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10153 },
10154 ExcerptsRemoved {
10155 ids: Vec<ExcerptId>,
10156 },
10157 BufferEdited,
10158 Edited,
10159 Reparsed,
10160 Focused,
10161 Blurred,
10162 DirtyChanged,
10163 Saved,
10164 TitleChanged,
10165 DiffBaseChanged,
10166 SelectionsChanged {
10167 local: bool,
10168 },
10169 ScrollPositionChanged {
10170 local: bool,
10171 autoscroll: bool,
10172 },
10173 Closed,
10174 TransactionUndone {
10175 transaction_id: clock::Lamport,
10176 },
10177 TransactionBegun {
10178 transaction_id: clock::Lamport,
10179 },
10180}
10181
10182impl EventEmitter<EditorEvent> for Editor {}
10183
10184impl FocusableView for Editor {
10185 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10186 self.focus_handle.clone()
10187 }
10188}
10189
10190impl Render for Editor {
10191 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10192 let settings = ThemeSettings::get_global(cx);
10193 let text_style = match self.mode {
10194 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10195 color: cx.theme().colors().editor_foreground,
10196 font_family: settings.ui_font.family.clone(),
10197 font_features: settings.ui_font.features,
10198 font_size: rems(0.875).into(),
10199 font_weight: FontWeight::NORMAL,
10200 font_style: FontStyle::Normal,
10201 line_height: relative(settings.buffer_line_height.value()),
10202 background_color: None,
10203 underline: None,
10204 strikethrough: None,
10205 white_space: WhiteSpace::Normal,
10206 },
10207
10208 EditorMode::Full => TextStyle {
10209 color: cx.theme().colors().editor_foreground,
10210 font_family: settings.buffer_font.family.clone(),
10211 font_features: settings.buffer_font.features,
10212 font_size: settings.buffer_font_size(cx).into(),
10213 font_weight: FontWeight::NORMAL,
10214 font_style: FontStyle::Normal,
10215 line_height: relative(settings.buffer_line_height.value()),
10216 background_color: None,
10217 underline: None,
10218 strikethrough: None,
10219 white_space: WhiteSpace::Normal,
10220 },
10221 };
10222
10223 let background = match self.mode {
10224 EditorMode::SingleLine => cx.theme().system().transparent,
10225 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10226 EditorMode::Full => cx.theme().colors().editor_background,
10227 };
10228
10229 EditorElement::new(
10230 cx.view(),
10231 EditorStyle {
10232 background,
10233 local_player: cx.theme().players().local(),
10234 text: text_style,
10235 scrollbar_width: px(12.),
10236 syntax: cx.theme().syntax().clone(),
10237 status: cx.theme().status().clone(),
10238 inlay_hints_style: HighlightStyle {
10239 color: Some(cx.theme().status().hint),
10240 ..HighlightStyle::default()
10241 },
10242 suggestions_style: HighlightStyle {
10243 color: Some(cx.theme().status().predictive),
10244 ..HighlightStyle::default()
10245 },
10246 },
10247 )
10248 }
10249}
10250
10251impl ViewInputHandler for Editor {
10252 fn text_for_range(
10253 &mut self,
10254 range_utf16: Range<usize>,
10255 cx: &mut ViewContext<Self>,
10256 ) -> Option<String> {
10257 Some(
10258 self.buffer
10259 .read(cx)
10260 .read(cx)
10261 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
10262 .collect(),
10263 )
10264 }
10265
10266 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10267 // Prevent the IME menu from appearing when holding down an alphabetic key
10268 // while input is disabled.
10269 if !self.input_enabled {
10270 return None;
10271 }
10272
10273 let range = self.selections.newest::<OffsetUtf16>(cx).range();
10274 Some(range.start.0..range.end.0)
10275 }
10276
10277 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10278 let snapshot = self.buffer.read(cx).read(cx);
10279 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
10280 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
10281 }
10282
10283 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
10284 self.clear_highlights::<InputComposition>(cx);
10285 self.ime_transaction.take();
10286 }
10287
10288 fn replace_text_in_range(
10289 &mut self,
10290 range_utf16: Option<Range<usize>>,
10291 text: &str,
10292 cx: &mut ViewContext<Self>,
10293 ) {
10294 if !self.input_enabled {
10295 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10296 return;
10297 }
10298
10299 self.transact(cx, |this, cx| {
10300 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
10301 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10302 Some(this.selection_replacement_ranges(range_utf16, cx))
10303 } else {
10304 this.marked_text_ranges(cx)
10305 };
10306
10307 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
10308 let newest_selection_id = this.selections.newest_anchor().id;
10309 this.selections
10310 .all::<OffsetUtf16>(cx)
10311 .iter()
10312 .zip(ranges_to_replace.iter())
10313 .find_map(|(selection, range)| {
10314 if selection.id == newest_selection_id {
10315 Some(
10316 (range.start.0 as isize - selection.head().0 as isize)
10317 ..(range.end.0 as isize - selection.head().0 as isize),
10318 )
10319 } else {
10320 None
10321 }
10322 })
10323 });
10324
10325 cx.emit(EditorEvent::InputHandled {
10326 utf16_range_to_replace: range_to_replace,
10327 text: text.into(),
10328 });
10329
10330 if let Some(new_selected_ranges) = new_selected_ranges {
10331 this.change_selections(None, cx, |selections| {
10332 selections.select_ranges(new_selected_ranges)
10333 });
10334 this.backspace(&Default::default(), cx);
10335 }
10336
10337 this.handle_input(text, cx);
10338 });
10339
10340 if let Some(transaction) = self.ime_transaction {
10341 self.buffer.update(cx, |buffer, cx| {
10342 buffer.group_until_transaction(transaction, cx);
10343 });
10344 }
10345
10346 self.unmark_text(cx);
10347 }
10348
10349 fn replace_and_mark_text_in_range(
10350 &mut self,
10351 range_utf16: Option<Range<usize>>,
10352 text: &str,
10353 new_selected_range_utf16: Option<Range<usize>>,
10354 cx: &mut ViewContext<Self>,
10355 ) {
10356 if !self.input_enabled {
10357 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10358 return;
10359 }
10360
10361 let transaction = self.transact(cx, |this, cx| {
10362 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10363 let snapshot = this.buffer.read(cx).read(cx);
10364 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10365 for marked_range in &mut marked_ranges {
10366 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10367 marked_range.start.0 += relative_range_utf16.start;
10368 marked_range.start =
10369 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10370 marked_range.end =
10371 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10372 }
10373 }
10374 Some(marked_ranges)
10375 } else if let Some(range_utf16) = range_utf16 {
10376 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10377 Some(this.selection_replacement_ranges(range_utf16, cx))
10378 } else {
10379 None
10380 };
10381
10382 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10383 let newest_selection_id = this.selections.newest_anchor().id;
10384 this.selections
10385 .all::<OffsetUtf16>(cx)
10386 .iter()
10387 .zip(ranges_to_replace.iter())
10388 .find_map(|(selection, range)| {
10389 if selection.id == newest_selection_id {
10390 Some(
10391 (range.start.0 as isize - selection.head().0 as isize)
10392 ..(range.end.0 as isize - selection.head().0 as isize),
10393 )
10394 } else {
10395 None
10396 }
10397 })
10398 });
10399
10400 cx.emit(EditorEvent::InputHandled {
10401 utf16_range_to_replace: range_to_replace,
10402 text: text.into(),
10403 });
10404
10405 if let Some(ranges) = ranges_to_replace {
10406 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10407 }
10408
10409 let marked_ranges = {
10410 let snapshot = this.buffer.read(cx).read(cx);
10411 this.selections
10412 .disjoint_anchors()
10413 .iter()
10414 .map(|selection| {
10415 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10416 })
10417 .collect::<Vec<_>>()
10418 };
10419
10420 if text.is_empty() {
10421 this.unmark_text(cx);
10422 } else {
10423 this.highlight_text::<InputComposition>(
10424 marked_ranges.clone(),
10425 HighlightStyle {
10426 underline: Some(UnderlineStyle {
10427 thickness: px(1.),
10428 color: None,
10429 wavy: false,
10430 }),
10431 ..Default::default()
10432 },
10433 cx,
10434 );
10435 }
10436
10437 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10438 let use_autoclose = this.use_autoclose;
10439 this.set_use_autoclose(false);
10440 this.handle_input(text, cx);
10441 this.set_use_autoclose(use_autoclose);
10442
10443 if let Some(new_selected_range) = new_selected_range_utf16 {
10444 let snapshot = this.buffer.read(cx).read(cx);
10445 let new_selected_ranges = marked_ranges
10446 .into_iter()
10447 .map(|marked_range| {
10448 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10449 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10450 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10451 snapshot.clip_offset_utf16(new_start, Bias::Left)
10452 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10453 })
10454 .collect::<Vec<_>>();
10455
10456 drop(snapshot);
10457 this.change_selections(None, cx, |selections| {
10458 selections.select_ranges(new_selected_ranges)
10459 });
10460 }
10461 });
10462
10463 self.ime_transaction = self.ime_transaction.or(transaction);
10464 if let Some(transaction) = self.ime_transaction {
10465 self.buffer.update(cx, |buffer, cx| {
10466 buffer.group_until_transaction(transaction, cx);
10467 });
10468 }
10469
10470 if self.text_highlights::<InputComposition>(cx).is_none() {
10471 self.ime_transaction.take();
10472 }
10473 }
10474
10475 fn bounds_for_range(
10476 &mut self,
10477 range_utf16: Range<usize>,
10478 element_bounds: gpui::Bounds<Pixels>,
10479 cx: &mut ViewContext<Self>,
10480 ) -> Option<gpui::Bounds<Pixels>> {
10481 let text_layout_details = self.text_layout_details(cx);
10482 let style = &text_layout_details.editor_style;
10483 let font_id = cx.text_system().resolve_font(&style.text.font());
10484 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10485 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10486 let em_width = cx
10487 .text_system()
10488 .typographic_bounds(font_id, font_size, 'm')
10489 .unwrap()
10490 .size
10491 .width;
10492
10493 let snapshot = self.snapshot(cx);
10494 let scroll_position = snapshot.scroll_position();
10495 let scroll_left = scroll_position.x * em_width;
10496
10497 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10498 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10499 + self.gutter_width;
10500 let y = line_height * (start.row() as f32 - scroll_position.y);
10501
10502 Some(Bounds {
10503 origin: element_bounds.origin + point(x, y),
10504 size: size(em_width, line_height),
10505 })
10506 }
10507}
10508
10509trait SelectionExt {
10510 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10511 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10512 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10513 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10514 -> Range<u32>;
10515}
10516
10517impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10518 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10519 let start = self.start.to_point(buffer);
10520 let end = self.end.to_point(buffer);
10521 if self.reversed {
10522 end..start
10523 } else {
10524 start..end
10525 }
10526 }
10527
10528 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10529 let start = self.start.to_offset(buffer);
10530 let end = self.end.to_offset(buffer);
10531 if self.reversed {
10532 end..start
10533 } else {
10534 start..end
10535 }
10536 }
10537
10538 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10539 let start = self
10540 .start
10541 .to_point(&map.buffer_snapshot)
10542 .to_display_point(map);
10543 let end = self
10544 .end
10545 .to_point(&map.buffer_snapshot)
10546 .to_display_point(map);
10547 if self.reversed {
10548 end..start
10549 } else {
10550 start..end
10551 }
10552 }
10553
10554 fn spanned_rows(
10555 &self,
10556 include_end_if_at_line_start: bool,
10557 map: &DisplaySnapshot,
10558 ) -> Range<u32> {
10559 let start = self.start.to_point(&map.buffer_snapshot);
10560 let mut end = self.end.to_point(&map.buffer_snapshot);
10561 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10562 end.row -= 1;
10563 }
10564
10565 let buffer_start = map.prev_line_boundary(start).0;
10566 let buffer_end = map.next_line_boundary(end).0;
10567 buffer_start.row..buffer_end.row + 1
10568 }
10569}
10570
10571impl<T: InvalidationRegion> InvalidationStack<T> {
10572 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10573 where
10574 S: Clone + ToOffset,
10575 {
10576 while let Some(region) = self.last() {
10577 let all_selections_inside_invalidation_ranges =
10578 if selections.len() == region.ranges().len() {
10579 selections
10580 .iter()
10581 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10582 .all(|(selection, invalidation_range)| {
10583 let head = selection.head().to_offset(buffer);
10584 invalidation_range.start <= head && invalidation_range.end >= head
10585 })
10586 } else {
10587 false
10588 };
10589
10590 if all_selections_inside_invalidation_ranges {
10591 break;
10592 } else {
10593 self.pop();
10594 }
10595 }
10596 }
10597}
10598
10599impl<T> Default for InvalidationStack<T> {
10600 fn default() -> Self {
10601 Self(Default::default())
10602 }
10603}
10604
10605impl<T> Deref for InvalidationStack<T> {
10606 type Target = Vec<T>;
10607
10608 fn deref(&self) -> &Self::Target {
10609 &self.0
10610 }
10611}
10612
10613impl<T> DerefMut for InvalidationStack<T> {
10614 fn deref_mut(&mut self) -> &mut Self::Target {
10615 &mut self.0
10616 }
10617}
10618
10619impl InvalidationRegion for SnippetState {
10620 fn ranges(&self) -> &[Range<Anchor>] {
10621 &self.ranges[self.active_index]
10622 }
10623}
10624
10625pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10626 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10627
10628 Arc::new(move |cx: &mut BlockContext| {
10629 let group_id: SharedString = cx.block_id.to_string().into();
10630
10631 let mut text_style = cx.text_style().clone();
10632 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10633
10634 h_flex()
10635 .id(cx.block_id)
10636 .group(group_id.clone())
10637 .relative()
10638 .size_full()
10639 .pl(cx.gutter_dimensions.width)
10640 .w(cx.max_width + cx.gutter_dimensions.width)
10641 .child(
10642 div()
10643 .flex()
10644 .w(cx.anchor_x - cx.gutter_dimensions.width)
10645 .flex_shrink(),
10646 )
10647 .child(div().flex().flex_shrink_0().child(
10648 StyledText::new(text_without_backticks.clone()).with_highlights(
10649 &text_style,
10650 code_ranges.iter().map(|range| {
10651 (
10652 range.clone(),
10653 HighlightStyle {
10654 font_weight: Some(FontWeight::BOLD),
10655 ..Default::default()
10656 },
10657 )
10658 }),
10659 ),
10660 ))
10661 .child(
10662 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
10663 .icon_color(Color::Muted)
10664 .size(ButtonSize::Compact)
10665 .style(ButtonStyle::Transparent)
10666 .visible_on_hover(group_id)
10667 .on_click({
10668 let message = diagnostic.message.clone();
10669 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10670 })
10671 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10672 )
10673 .into_any_element()
10674 })
10675}
10676
10677pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10678 let mut text_without_backticks = String::new();
10679 let mut code_ranges = Vec::new();
10680
10681 if let Some(source) = &diagnostic.source {
10682 text_without_backticks.push_str(&source);
10683 code_ranges.push(0..source.len());
10684 text_without_backticks.push_str(": ");
10685 }
10686
10687 let mut prev_offset = 0;
10688 let mut in_code_block = false;
10689 for (ix, _) in diagnostic
10690 .message
10691 .match_indices('`')
10692 .chain([(diagnostic.message.len(), "")])
10693 {
10694 let prev_len = text_without_backticks.len();
10695 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10696 prev_offset = ix + 1;
10697 if in_code_block {
10698 code_ranges.push(prev_len..text_without_backticks.len());
10699 in_code_block = false;
10700 } else {
10701 in_code_block = true;
10702 }
10703 }
10704
10705 (text_without_backticks.into(), code_ranges)
10706}
10707
10708fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10709 match (severity, valid) {
10710 (DiagnosticSeverity::ERROR, true) => colors.error,
10711 (DiagnosticSeverity::ERROR, false) => colors.error,
10712 (DiagnosticSeverity::WARNING, true) => colors.warning,
10713 (DiagnosticSeverity::WARNING, false) => colors.warning,
10714 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10715 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10716 (DiagnosticSeverity::HINT, true) => colors.info,
10717 (DiagnosticSeverity::HINT, false) => colors.info,
10718 _ => colors.ignored,
10719 }
10720}
10721
10722pub fn styled_runs_for_code_label<'a>(
10723 label: &'a CodeLabel,
10724 syntax_theme: &'a theme::SyntaxTheme,
10725) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10726 let fade_out = HighlightStyle {
10727 fade_out: Some(0.35),
10728 ..Default::default()
10729 };
10730
10731 let mut prev_end = label.filter_range.end;
10732 label
10733 .runs
10734 .iter()
10735 .enumerate()
10736 .flat_map(move |(ix, (range, highlight_id))| {
10737 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10738 style
10739 } else {
10740 return Default::default();
10741 };
10742 let mut muted_style = style;
10743 muted_style.highlight(fade_out);
10744
10745 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10746 if range.start >= label.filter_range.end {
10747 if range.start > prev_end {
10748 runs.push((prev_end..range.start, fade_out));
10749 }
10750 runs.push((range.clone(), muted_style));
10751 } else if range.end <= label.filter_range.end {
10752 runs.push((range.clone(), style));
10753 } else {
10754 runs.push((range.start..label.filter_range.end, style));
10755 runs.push((label.filter_range.end..range.end, muted_style));
10756 }
10757 prev_end = cmp::max(prev_end, range.end);
10758
10759 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10760 runs.push((prev_end..label.text.len(), fade_out));
10761 }
10762
10763 runs
10764 })
10765}
10766
10767pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
10768 let mut prev_index = 0;
10769 let mut prev_codepoint: Option<char> = None;
10770 text.char_indices()
10771 .chain([(text.len(), '\0')])
10772 .filter_map(move |(index, codepoint)| {
10773 let prev_codepoint = prev_codepoint.replace(codepoint)?;
10774 let is_boundary = index == text.len()
10775 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
10776 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
10777 if is_boundary {
10778 let chunk = &text[prev_index..index];
10779 prev_index = index;
10780 Some(chunk)
10781 } else {
10782 None
10783 }
10784 })
10785}
10786
10787trait RangeToAnchorExt {
10788 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10789}
10790
10791impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10792 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10793 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10794 }
10795}