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 pub 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 pub vim_replace_map: HashMap<Range<usize>, String>,
427 style: Option<EditorStyle>,
428 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
429 show_copilot_suggestions: bool,
430 use_autoclose: bool,
431 auto_replace_emoji_shortcode: bool,
432 custom_context_menu: Option<
433 Box<
434 dyn 'static
435 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
436 >,
437 >,
438}
439
440pub struct EditorSnapshot {
441 pub mode: EditorMode,
442 show_gutter: bool,
443 pub display_snapshot: DisplaySnapshot,
444 pub placeholder_text: Option<Arc<str>>,
445 is_focused: bool,
446 scroll_anchor: ScrollAnchor,
447 ongoing_scroll: OngoingScroll,
448}
449
450pub struct GutterDimensions {
451 pub left_padding: Pixels,
452 pub right_padding: Pixels,
453 pub width: Pixels,
454 pub margin: Pixels,
455}
456
457impl Default for GutterDimensions {
458 fn default() -> Self {
459 Self {
460 left_padding: Pixels::ZERO,
461 right_padding: Pixels::ZERO,
462 width: Pixels::ZERO,
463 margin: Pixels::ZERO,
464 }
465 }
466}
467
468#[derive(Debug)]
469pub struct RemoteSelection {
470 pub replica_id: ReplicaId,
471 pub selection: Selection<Anchor>,
472 pub cursor_shape: CursorShape,
473 pub peer_id: PeerId,
474 pub line_mode: bool,
475 pub participant_index: Option<ParticipantIndex>,
476 pub user_name: Option<SharedString>,
477}
478
479#[derive(Clone, Debug)]
480struct SelectionHistoryEntry {
481 selections: Arc<[Selection<Anchor>]>,
482 select_next_state: Option<SelectNextState>,
483 select_prev_state: Option<SelectNextState>,
484 add_selections_state: Option<AddSelectionsState>,
485}
486
487enum SelectionHistoryMode {
488 Normal,
489 Undoing,
490 Redoing,
491}
492
493#[derive(Clone, PartialEq, Eq, Hash)]
494struct HoveredCursor {
495 replica_id: u16,
496 selection_id: usize,
497}
498
499impl Default for SelectionHistoryMode {
500 fn default() -> Self {
501 Self::Normal
502 }
503}
504
505#[derive(Default)]
506struct SelectionHistory {
507 #[allow(clippy::type_complexity)]
508 selections_by_transaction:
509 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
510 mode: SelectionHistoryMode,
511 undo_stack: VecDeque<SelectionHistoryEntry>,
512 redo_stack: VecDeque<SelectionHistoryEntry>,
513}
514
515impl SelectionHistory {
516 fn insert_transaction(
517 &mut self,
518 transaction_id: TransactionId,
519 selections: Arc<[Selection<Anchor>]>,
520 ) {
521 self.selections_by_transaction
522 .insert(transaction_id, (selections, None));
523 }
524
525 #[allow(clippy::type_complexity)]
526 fn transaction(
527 &self,
528 transaction_id: TransactionId,
529 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
530 self.selections_by_transaction.get(&transaction_id)
531 }
532
533 #[allow(clippy::type_complexity)]
534 fn transaction_mut(
535 &mut self,
536 transaction_id: TransactionId,
537 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
538 self.selections_by_transaction.get_mut(&transaction_id)
539 }
540
541 fn push(&mut self, entry: SelectionHistoryEntry) {
542 if !entry.selections.is_empty() {
543 match self.mode {
544 SelectionHistoryMode::Normal => {
545 self.push_undo(entry);
546 self.redo_stack.clear();
547 }
548 SelectionHistoryMode::Undoing => self.push_redo(entry),
549 SelectionHistoryMode::Redoing => self.push_undo(entry),
550 }
551 }
552 }
553
554 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
555 if self
556 .undo_stack
557 .back()
558 .map_or(true, |e| e.selections != entry.selections)
559 {
560 self.undo_stack.push_back(entry);
561 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
562 self.undo_stack.pop_front();
563 }
564 }
565 }
566
567 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
568 if self
569 .redo_stack
570 .back()
571 .map_or(true, |e| e.selections != entry.selections)
572 {
573 self.redo_stack.push_back(entry);
574 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
575 self.redo_stack.pop_front();
576 }
577 }
578 }
579}
580
581#[derive(Clone, Debug)]
582struct AddSelectionsState {
583 above: bool,
584 stack: Vec<usize>,
585}
586
587#[derive(Clone)]
588struct SelectNextState {
589 query: AhoCorasick,
590 wordwise: bool,
591 done: bool,
592}
593
594impl std::fmt::Debug for SelectNextState {
595 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
596 f.debug_struct(std::any::type_name::<Self>())
597 .field("wordwise", &self.wordwise)
598 .field("done", &self.done)
599 .finish()
600 }
601}
602
603#[derive(Debug)]
604struct AutocloseRegion {
605 selection_id: usize,
606 range: Range<Anchor>,
607 pair: BracketPair,
608}
609
610#[derive(Debug)]
611struct SnippetState {
612 ranges: Vec<Vec<Range<Anchor>>>,
613 active_index: usize,
614}
615
616#[doc(hidden)]
617pub struct RenameState {
618 pub range: Range<Anchor>,
619 pub old_name: Arc<str>,
620 pub editor: View<Editor>,
621 block_id: BlockId,
622}
623
624struct InvalidationStack<T>(Vec<T>);
625
626enum ContextMenu {
627 Completions(CompletionsMenu),
628 CodeActions(CodeActionsMenu),
629}
630
631impl ContextMenu {
632 fn select_first(
633 &mut self,
634 project: Option<&Model<Project>>,
635 cx: &mut ViewContext<Editor>,
636 ) -> bool {
637 if self.visible() {
638 match self {
639 ContextMenu::Completions(menu) => menu.select_first(project, cx),
640 ContextMenu::CodeActions(menu) => menu.select_first(cx),
641 }
642 true
643 } else {
644 false
645 }
646 }
647
648 fn select_prev(
649 &mut self,
650 project: Option<&Model<Project>>,
651 cx: &mut ViewContext<Editor>,
652 ) -> bool {
653 if self.visible() {
654 match self {
655 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
656 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
657 }
658 true
659 } else {
660 false
661 }
662 }
663
664 fn select_next(
665 &mut self,
666 project: Option<&Model<Project>>,
667 cx: &mut ViewContext<Editor>,
668 ) -> bool {
669 if self.visible() {
670 match self {
671 ContextMenu::Completions(menu) => menu.select_next(project, cx),
672 ContextMenu::CodeActions(menu) => menu.select_next(cx),
673 }
674 true
675 } else {
676 false
677 }
678 }
679
680 fn select_last(
681 &mut self,
682 project: Option<&Model<Project>>,
683 cx: &mut ViewContext<Editor>,
684 ) -> bool {
685 if self.visible() {
686 match self {
687 ContextMenu::Completions(menu) => menu.select_last(project, cx),
688 ContextMenu::CodeActions(menu) => menu.select_last(cx),
689 }
690 true
691 } else {
692 false
693 }
694 }
695
696 fn visible(&self) -> bool {
697 match self {
698 ContextMenu::Completions(menu) => menu.visible(),
699 ContextMenu::CodeActions(menu) => menu.visible(),
700 }
701 }
702
703 fn render(
704 &self,
705 cursor_position: DisplayPoint,
706 style: &EditorStyle,
707 max_height: Pixels,
708 workspace: Option<WeakView<Workspace>>,
709 cx: &mut ViewContext<Editor>,
710 ) -> (DisplayPoint, AnyElement) {
711 match self {
712 ContextMenu::Completions(menu) => (
713 cursor_position,
714 menu.render(style, max_height, workspace, cx),
715 ),
716 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
717 }
718 }
719}
720
721#[derive(Clone)]
722struct CompletionsMenu {
723 id: CompletionId,
724 initial_position: Anchor,
725 buffer: Model<Buffer>,
726 completions: Arc<RwLock<Box<[Completion]>>>,
727 match_candidates: Arc<[StringMatchCandidate]>,
728 matches: Arc<[StringMatch]>,
729 selected_item: usize,
730 scroll_handle: UniformListScrollHandle,
731 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
732}
733
734impl CompletionsMenu {
735 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
736 self.selected_item = 0;
737 self.scroll_handle.scroll_to_item(self.selected_item);
738 self.attempt_resolve_selected_completion_documentation(project, cx);
739 cx.notify();
740 }
741
742 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
743 if self.selected_item > 0 {
744 self.selected_item -= 1;
745 } else {
746 self.selected_item = self.matches.len() - 1;
747 }
748 self.scroll_handle.scroll_to_item(self.selected_item);
749 self.attempt_resolve_selected_completion_documentation(project, cx);
750 cx.notify();
751 }
752
753 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
754 if self.selected_item + 1 < self.matches.len() {
755 self.selected_item += 1;
756 } else {
757 self.selected_item = 0;
758 }
759 self.scroll_handle.scroll_to_item(self.selected_item);
760 self.attempt_resolve_selected_completion_documentation(project, cx);
761 cx.notify();
762 }
763
764 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
765 self.selected_item = self.matches.len() - 1;
766 self.scroll_handle.scroll_to_item(self.selected_item);
767 self.attempt_resolve_selected_completion_documentation(project, cx);
768 cx.notify();
769 }
770
771 fn pre_resolve_completion_documentation(
772 completions: Arc<RwLock<Box<[Completion]>>>,
773 matches: Arc<[StringMatch]>,
774 editor: &Editor,
775 cx: &mut ViewContext<Editor>,
776 ) -> Task<()> {
777 let settings = EditorSettings::get_global(cx);
778 if !settings.show_completion_documentation {
779 return Task::ready(());
780 }
781
782 let Some(provider) = editor.completion_provider.as_ref() else {
783 return Task::ready(());
784 };
785
786 let resolve_task = provider.resolve_completions(
787 matches.iter().map(|m| m.candidate_id).collect(),
788 completions.clone(),
789 cx,
790 );
791
792 return cx.spawn(move |this, mut cx| async move {
793 if let Some(true) = resolve_task.await.log_err() {
794 this.update(&mut cx, |_, cx| cx.notify()).ok();
795 }
796 });
797 }
798
799 fn attempt_resolve_selected_completion_documentation(
800 &mut self,
801 project: Option<&Model<Project>>,
802 cx: &mut ViewContext<Editor>,
803 ) {
804 let settings = EditorSettings::get_global(cx);
805 if !settings.show_completion_documentation {
806 return;
807 }
808
809 let completion_index = self.matches[self.selected_item].candidate_id;
810 let Some(project) = project else {
811 return;
812 };
813
814 let resolve_task = project.update(cx, |project, cx| {
815 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
816 });
817
818 let delay_ms =
819 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
820 let delay = Duration::from_millis(delay_ms);
821
822 self.selected_completion_documentation_resolve_debounce
823 .lock()
824 .fire_new(delay, cx, |_, cx| {
825 cx.spawn(move |this, mut cx| async move {
826 if let Some(true) = resolve_task.await.log_err() {
827 this.update(&mut cx, |_, cx| cx.notify()).ok();
828 }
829 })
830 });
831 }
832
833 fn visible(&self) -> bool {
834 !self.matches.is_empty()
835 }
836
837 fn render(
838 &self,
839 style: &EditorStyle,
840 max_height: Pixels,
841 workspace: Option<WeakView<Workspace>>,
842 cx: &mut ViewContext<Editor>,
843 ) -> AnyElement {
844 let settings = EditorSettings::get_global(cx);
845 let show_completion_documentation = settings.show_completion_documentation;
846
847 let widest_completion_ix = self
848 .matches
849 .iter()
850 .enumerate()
851 .max_by_key(|(_, mat)| {
852 let completions = self.completions.read();
853 let completion = &completions[mat.candidate_id];
854 let documentation = &completion.documentation;
855
856 let mut len = completion.label.text.chars().count();
857 if let Some(Documentation::SingleLine(text)) = documentation {
858 if show_completion_documentation {
859 len += text.chars().count();
860 }
861 }
862
863 len
864 })
865 .map(|(ix, _)| ix);
866
867 let completions = self.completions.clone();
868 let matches = self.matches.clone();
869 let selected_item = self.selected_item;
870 let style = style.clone();
871
872 let multiline_docs = if show_completion_documentation {
873 let mat = &self.matches[selected_item];
874 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
875 Some(Documentation::MultiLinePlainText(text)) => {
876 Some(div().child(SharedString::from(text.clone())))
877 }
878 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
879 Some(div().child(render_parsed_markdown(
880 "completions_markdown",
881 parsed,
882 &style,
883 workspace,
884 cx,
885 )))
886 }
887 _ => None,
888 };
889 multiline_docs.map(|div| {
890 div.id("multiline_docs")
891 .max_h(max_height)
892 .flex_1()
893 .px_1p5()
894 .py_1()
895 .min_w(px(260.))
896 .max_w(px(640.))
897 .w(px(500.))
898 .overflow_y_scroll()
899 // Prevent a mouse down on documentation from being propagated to the editor,
900 // because that would move the cursor.
901 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
902 })
903 } else {
904 None
905 };
906
907 let list = uniform_list(
908 cx.view().clone(),
909 "completions",
910 matches.len(),
911 move |_editor, range, cx| {
912 let start_ix = range.start;
913 let completions_guard = completions.read();
914
915 matches[range]
916 .iter()
917 .enumerate()
918 .map(|(ix, mat)| {
919 let item_ix = start_ix + ix;
920 let candidate_id = mat.candidate_id;
921 let completion = &completions_guard[candidate_id];
922
923 let documentation = if show_completion_documentation {
924 &completion.documentation
925 } else {
926 &None
927 };
928
929 let highlights = gpui::combine_highlights(
930 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
931 styled_runs_for_code_label(&completion.label, &style.syntax).map(
932 |(range, mut highlight)| {
933 // Ignore font weight for syntax highlighting, as we'll use it
934 // for fuzzy matches.
935 highlight.font_weight = None;
936
937 if completion.lsp_completion.deprecated.unwrap_or(false) {
938 highlight.strikethrough = Some(StrikethroughStyle {
939 thickness: 1.0.into(),
940 ..Default::default()
941 });
942 highlight.color = Some(cx.theme().colors().text_muted);
943 }
944
945 (range, highlight)
946 },
947 ),
948 );
949 let completion_label = StyledText::new(completion.label.text.clone())
950 .with_highlights(&style.text, highlights);
951 let documentation_label =
952 if let Some(Documentation::SingleLine(text)) = documentation {
953 if text.trim().is_empty() {
954 None
955 } else {
956 Some(
957 h_flex().ml_4().child(
958 Label::new(text.clone())
959 .size(LabelSize::Small)
960 .color(Color::Muted),
961 ),
962 )
963 }
964 } else {
965 None
966 };
967
968 div().min_w(px(220.)).max_w(px(540.)).child(
969 ListItem::new(mat.candidate_id)
970 .inset(true)
971 .selected(item_ix == selected_item)
972 .on_click(cx.listener(move |editor, _event, cx| {
973 cx.stop_propagation();
974 if let Some(task) = editor.confirm_completion(
975 &ConfirmCompletion {
976 item_ix: Some(item_ix),
977 },
978 cx,
979 ) {
980 task.detach_and_log_err(cx)
981 }
982 }))
983 .child(h_flex().overflow_hidden().child(completion_label))
984 .end_slot::<Div>(documentation_label),
985 )
986 })
987 .collect()
988 },
989 )
990 .max_h(max_height)
991 .track_scroll(self.scroll_handle.clone())
992 .with_width_from_item(widest_completion_ix);
993
994 Popover::new()
995 .child(list)
996 .when_some(multiline_docs, |popover, multiline_docs| {
997 popover.aside(multiline_docs)
998 })
999 .into_any_element()
1000 }
1001
1002 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1003 let mut matches = if let Some(query) = query {
1004 fuzzy::match_strings(
1005 &self.match_candidates,
1006 query,
1007 query.chars().any(|c| c.is_uppercase()),
1008 100,
1009 &Default::default(),
1010 executor,
1011 )
1012 .await
1013 } else {
1014 self.match_candidates
1015 .iter()
1016 .enumerate()
1017 .map(|(candidate_id, candidate)| StringMatch {
1018 candidate_id,
1019 score: Default::default(),
1020 positions: Default::default(),
1021 string: candidate.string.clone(),
1022 })
1023 .collect()
1024 };
1025
1026 // Remove all candidates where the query's start does not match the start of any word in the candidate
1027 if let Some(query) = query {
1028 if let Some(query_start) = query.chars().next() {
1029 matches.retain(|string_match| {
1030 split_words(&string_match.string).any(|word| {
1031 // Check that the first codepoint of the word as lowercase matches the first
1032 // codepoint of the query as lowercase
1033 word.chars()
1034 .flat_map(|codepoint| codepoint.to_lowercase())
1035 .zip(query_start.to_lowercase())
1036 .all(|(word_cp, query_cp)| word_cp == query_cp)
1037 })
1038 });
1039 }
1040 }
1041
1042 let completions = self.completions.read();
1043 matches.sort_unstable_by_key(|mat| {
1044 // We do want to strike a balance here between what the language server tells us
1045 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1046 // `Creat` and there is a local variable called `CreateComponent`).
1047 // So what we do is: we bucket all matches into two buckets
1048 // - Strong matches
1049 // - Weak matches
1050 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1051 // and the Weak matches are the rest.
1052 //
1053 // For the strong matches, we sort by the language-servers score first and for the weak
1054 // matches, we prefer our fuzzy finder first.
1055 //
1056 // The thinking behind that: it's useless to take the sort_text the language-server gives
1057 // us into account when it's obviously a bad match.
1058
1059 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1060 enum MatchScore<'a> {
1061 Strong {
1062 sort_text: Option<&'a str>,
1063 score: Reverse<OrderedFloat<f64>>,
1064 sort_key: (usize, &'a str),
1065 },
1066 Weak {
1067 score: Reverse<OrderedFloat<f64>>,
1068 sort_text: Option<&'a str>,
1069 sort_key: (usize, &'a str),
1070 },
1071 }
1072
1073 let completion = &completions[mat.candidate_id];
1074 let sort_key = completion.sort_key();
1075 let sort_text = completion.lsp_completion.sort_text.as_deref();
1076 let score = Reverse(OrderedFloat(mat.score));
1077
1078 if mat.score >= 0.2 {
1079 MatchScore::Strong {
1080 sort_text,
1081 score,
1082 sort_key,
1083 }
1084 } else {
1085 MatchScore::Weak {
1086 score,
1087 sort_text,
1088 sort_key,
1089 }
1090 }
1091 });
1092
1093 for mat in &mut matches {
1094 let completion = &completions[mat.candidate_id];
1095 mat.string = completion.label.text.clone();
1096 for position in &mut mat.positions {
1097 *position += completion.label.filter_range.start;
1098 }
1099 }
1100 drop(completions);
1101
1102 self.matches = matches.into();
1103 self.selected_item = 0;
1104 }
1105}
1106
1107#[derive(Clone)]
1108struct CodeActionsMenu {
1109 actions: Arc<[CodeAction]>,
1110 buffer: Model<Buffer>,
1111 selected_item: usize,
1112 scroll_handle: UniformListScrollHandle,
1113 deployed_from_indicator: bool,
1114}
1115
1116impl CodeActionsMenu {
1117 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1118 self.selected_item = 0;
1119 self.scroll_handle.scroll_to_item(self.selected_item);
1120 cx.notify()
1121 }
1122
1123 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1124 if self.selected_item > 0 {
1125 self.selected_item -= 1;
1126 } else {
1127 self.selected_item = self.actions.len() - 1;
1128 }
1129 self.scroll_handle.scroll_to_item(self.selected_item);
1130 cx.notify();
1131 }
1132
1133 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1134 if self.selected_item + 1 < self.actions.len() {
1135 self.selected_item += 1;
1136 } else {
1137 self.selected_item = 0;
1138 }
1139 self.scroll_handle.scroll_to_item(self.selected_item);
1140 cx.notify();
1141 }
1142
1143 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1144 self.selected_item = self.actions.len() - 1;
1145 self.scroll_handle.scroll_to_item(self.selected_item);
1146 cx.notify()
1147 }
1148
1149 fn visible(&self) -> bool {
1150 !self.actions.is_empty()
1151 }
1152
1153 fn render(
1154 &self,
1155 mut cursor_position: DisplayPoint,
1156 _style: &EditorStyle,
1157 max_height: Pixels,
1158 cx: &mut ViewContext<Editor>,
1159 ) -> (DisplayPoint, AnyElement) {
1160 let actions = self.actions.clone();
1161 let selected_item = self.selected_item;
1162
1163 let element = uniform_list(
1164 cx.view().clone(),
1165 "code_actions_menu",
1166 self.actions.len(),
1167 move |_this, range, cx| {
1168 actions[range.clone()]
1169 .iter()
1170 .enumerate()
1171 .map(|(ix, action)| {
1172 let item_ix = range.start + ix;
1173 let selected = selected_item == item_ix;
1174 let colors = cx.theme().colors();
1175 div()
1176 .px_2()
1177 .text_color(colors.text)
1178 .when(selected, |style| {
1179 style
1180 .bg(colors.element_active)
1181 .text_color(colors.text_accent)
1182 })
1183 .hover(|style| {
1184 style
1185 .bg(colors.element_hover)
1186 .text_color(colors.text_accent)
1187 })
1188 .on_mouse_down(
1189 MouseButton::Left,
1190 cx.listener(move |editor, _, cx| {
1191 cx.stop_propagation();
1192 if let Some(task) = editor.confirm_code_action(
1193 &ConfirmCodeAction {
1194 item_ix: Some(item_ix),
1195 },
1196 cx,
1197 ) {
1198 task.detach_and_log_err(cx)
1199 }
1200 }),
1201 )
1202 .whitespace_nowrap()
1203 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1204 .child(SharedString::from(action.lsp_action.title.clone()))
1205 })
1206 .collect()
1207 },
1208 )
1209 .elevation_1(cx)
1210 .px_2()
1211 .py_1()
1212 .max_h(max_height)
1213 .track_scroll(self.scroll_handle.clone())
1214 .with_width_from_item(
1215 self.actions
1216 .iter()
1217 .enumerate()
1218 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1219 .map(|(ix, _)| ix),
1220 )
1221 .into_any_element();
1222
1223 if self.deployed_from_indicator {
1224 *cursor_position.column_mut() = 0;
1225 }
1226
1227 (cursor_position, element)
1228 }
1229}
1230
1231#[derive(Debug)]
1232pub(crate) struct CopilotState {
1233 excerpt_id: Option<ExcerptId>,
1234 pending_refresh: Task<Option<()>>,
1235 pending_cycling_refresh: Task<Option<()>>,
1236 cycled: bool,
1237 completions: Vec<copilot::Completion>,
1238 active_completion_index: usize,
1239 suggestion: Option<Inlay>,
1240}
1241
1242impl Default for CopilotState {
1243 fn default() -> Self {
1244 Self {
1245 excerpt_id: None,
1246 pending_cycling_refresh: Task::ready(Some(())),
1247 pending_refresh: Task::ready(Some(())),
1248 completions: Default::default(),
1249 active_completion_index: 0,
1250 cycled: false,
1251 suggestion: None,
1252 }
1253 }
1254}
1255
1256impl CopilotState {
1257 fn active_completion(&self) -> Option<&copilot::Completion> {
1258 self.completions.get(self.active_completion_index)
1259 }
1260
1261 fn text_for_active_completion(
1262 &self,
1263 cursor: Anchor,
1264 buffer: &MultiBufferSnapshot,
1265 ) -> Option<&str> {
1266 use language::ToOffset as _;
1267
1268 let completion = self.active_completion()?;
1269 let excerpt_id = self.excerpt_id?;
1270 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1271 if excerpt_id != cursor.excerpt_id
1272 || !completion.range.start.is_valid(completion_buffer)
1273 || !completion.range.end.is_valid(completion_buffer)
1274 {
1275 return None;
1276 }
1277
1278 let mut completion_range = completion.range.to_offset(&completion_buffer);
1279 let prefix_len = Self::common_prefix(
1280 completion_buffer.chars_for_range(completion_range.clone()),
1281 completion.text.chars(),
1282 );
1283 completion_range.start += prefix_len;
1284 let suffix_len = Self::common_prefix(
1285 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1286 completion.text[prefix_len..].chars().rev(),
1287 );
1288 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1289
1290 if completion_range.is_empty()
1291 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1292 {
1293 let completion_text = &completion.text[prefix_len..completion.text.len() - suffix_len];
1294 if completion_text.trim().is_empty() {
1295 None
1296 } else {
1297 Some(completion_text)
1298 }
1299 } else {
1300 None
1301 }
1302 }
1303
1304 fn cycle_completions(&mut self, direction: Direction) {
1305 match direction {
1306 Direction::Prev => {
1307 self.active_completion_index = if self.active_completion_index == 0 {
1308 self.completions.len().saturating_sub(1)
1309 } else {
1310 self.active_completion_index - 1
1311 };
1312 }
1313 Direction::Next => {
1314 if self.completions.len() == 0 {
1315 self.active_completion_index = 0
1316 } else {
1317 self.active_completion_index =
1318 (self.active_completion_index + 1) % self.completions.len();
1319 }
1320 }
1321 }
1322 }
1323
1324 fn push_completion(&mut self, new_completion: copilot::Completion) {
1325 for completion in &self.completions {
1326 if completion.text == new_completion.text && completion.range == new_completion.range {
1327 return;
1328 }
1329 }
1330 self.completions.push(new_completion);
1331 }
1332
1333 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1334 a.zip(b)
1335 .take_while(|(a, b)| a == b)
1336 .map(|(a, _)| a.len_utf8())
1337 .sum()
1338 }
1339}
1340
1341#[derive(Debug)]
1342struct ActiveDiagnosticGroup {
1343 primary_range: Range<Anchor>,
1344 primary_message: String,
1345 blocks: HashMap<BlockId, Diagnostic>,
1346 is_valid: bool,
1347}
1348
1349#[derive(Serialize, Deserialize)]
1350pub struct ClipboardSelection {
1351 pub len: usize,
1352 pub is_entire_line: bool,
1353 pub first_line_indent: u32,
1354}
1355
1356#[derive(Debug)]
1357pub(crate) struct NavigationData {
1358 cursor_anchor: Anchor,
1359 cursor_position: Point,
1360 scroll_anchor: ScrollAnchor,
1361 scroll_top_row: u32,
1362}
1363
1364enum GotoDefinitionKind {
1365 Symbol,
1366 Type,
1367 Implementation,
1368}
1369
1370#[derive(Debug, Clone)]
1371enum InlayHintRefreshReason {
1372 Toggle(bool),
1373 SettingsChange(InlayHintSettings),
1374 NewLinesShown,
1375 BufferEdited(HashSet<Arc<Language>>),
1376 RefreshRequested,
1377 ExcerptsRemoved(Vec<ExcerptId>),
1378}
1379
1380impl InlayHintRefreshReason {
1381 fn description(&self) -> &'static str {
1382 match self {
1383 Self::Toggle(_) => "toggle",
1384 Self::SettingsChange(_) => "settings change",
1385 Self::NewLinesShown => "new lines shown",
1386 Self::BufferEdited(_) => "buffer edited",
1387 Self::RefreshRequested => "refresh requested",
1388 Self::ExcerptsRemoved(_) => "excerpts removed",
1389 }
1390 }
1391}
1392
1393impl Editor {
1394 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1395 let buffer = cx.new_model(|cx| {
1396 Buffer::new(
1397 0,
1398 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1399 String::new(),
1400 )
1401 });
1402 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1403 Self::new(EditorMode::SingleLine, buffer, None, cx)
1404 }
1405
1406 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1407 let buffer = cx.new_model(|cx| {
1408 Buffer::new(
1409 0,
1410 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1411 String::new(),
1412 )
1413 });
1414 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1415 Self::new(EditorMode::Full, buffer, None, cx)
1416 }
1417
1418 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1419 let buffer = cx.new_model(|cx| {
1420 Buffer::new(
1421 0,
1422 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1423 String::new(),
1424 )
1425 });
1426 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1427 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1428 }
1429
1430 pub fn for_buffer(
1431 buffer: Model<Buffer>,
1432 project: Option<Model<Project>>,
1433 cx: &mut ViewContext<Self>,
1434 ) -> Self {
1435 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1436 Self::new(EditorMode::Full, buffer, project, cx)
1437 }
1438
1439 pub fn for_multibuffer(
1440 buffer: Model<MultiBuffer>,
1441 project: Option<Model<Project>>,
1442 cx: &mut ViewContext<Self>,
1443 ) -> Self {
1444 Self::new(EditorMode::Full, buffer, project, cx)
1445 }
1446
1447 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1448 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1449 self.display_map.update(cx, |display_map, cx| {
1450 let snapshot = display_map.snapshot(cx);
1451 clone.display_map.update(cx, |display_map, cx| {
1452 display_map.set_state(&snapshot, cx);
1453 });
1454 });
1455 clone.selections.clone_state(&self.selections);
1456 clone.scroll_manager.clone_state(&self.scroll_manager);
1457 clone.searchable = self.searchable;
1458 clone
1459 }
1460
1461 fn new(
1462 mode: EditorMode,
1463 buffer: Model<MultiBuffer>,
1464 project: Option<Model<Project>>,
1465 cx: &mut ViewContext<Self>,
1466 ) -> Self {
1467 let style = cx.text_style();
1468 let font_size = style.font_size.to_pixels(cx.rem_size());
1469 let display_map = cx.new_model(|cx| {
1470 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1471 });
1472
1473 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1474
1475 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1476
1477 let soft_wrap_mode_override =
1478 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1479
1480 let mut project_subscriptions = Vec::new();
1481 if mode == EditorMode::Full {
1482 if let Some(project) = project.as_ref() {
1483 if buffer.read(cx).is_singleton() {
1484 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1485 cx.emit(EditorEvent::TitleChanged);
1486 }));
1487 }
1488 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1489 if let project::Event::RefreshInlayHints = event {
1490 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1491 };
1492 }));
1493 }
1494 }
1495
1496 let inlay_hint_settings = inlay_hint_settings(
1497 selections.newest_anchor().head(),
1498 &buffer.read(cx).snapshot(cx),
1499 cx,
1500 );
1501
1502 let focus_handle = cx.focus_handle();
1503 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1504 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1505
1506 let mut this = Self {
1507 focus_handle,
1508 buffer: buffer.clone(),
1509 display_map: display_map.clone(),
1510 selections,
1511 scroll_manager: ScrollManager::new(cx),
1512 columnar_selection_tail: None,
1513 add_selections_state: None,
1514 select_next_state: None,
1515 select_prev_state: None,
1516 selection_history: Default::default(),
1517 autoclose_regions: Default::default(),
1518 snippet_stack: Default::default(),
1519 select_larger_syntax_node_stack: Vec::new(),
1520 ime_transaction: Default::default(),
1521 active_diagnostics: None,
1522 soft_wrap_mode_override,
1523 completion_provider: project.clone().map(|project| Box::new(project) as _),
1524 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1525 project,
1526 blink_manager: blink_manager.clone(),
1527 show_local_selections: true,
1528 mode,
1529 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1530 show_gutter: mode == EditorMode::Full,
1531 show_wrap_guides: None,
1532 placeholder_text: None,
1533 highlight_order: 0,
1534 highlighted_rows: HashMap::default(),
1535 background_highlights: Default::default(),
1536 nav_history: None,
1537 context_menu: RwLock::new(None),
1538 mouse_context_menu: None,
1539 completion_tasks: Default::default(),
1540 find_all_references_task_sources: Vec::new(),
1541 next_completion_id: 0,
1542 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1543 next_inlay_id: 0,
1544 available_code_actions: Default::default(),
1545 code_actions_task: Default::default(),
1546 document_highlights_task: Default::default(),
1547 pending_rename: Default::default(),
1548 searchable: true,
1549 cursor_shape: Default::default(),
1550 autoindent_mode: Some(AutoindentMode::EachLine),
1551 collapse_matches: false,
1552 workspace: None,
1553 keymap_context_layers: Default::default(),
1554 input_enabled: true,
1555 use_modal_editing: mode == EditorMode::Full,
1556 read_only: false,
1557 use_autoclose: true,
1558 auto_replace_emoji_shortcode: false,
1559 leader_peer_id: None,
1560 remote_id: None,
1561 hover_state: Default::default(),
1562 hovered_link_state: Default::default(),
1563 copilot_state: Default::default(),
1564 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1565 gutter_hovered: false,
1566 pixel_position_of_newest_cursor: None,
1567 gutter_width: Default::default(),
1568 style: None,
1569 show_cursor_names: false,
1570 hovered_cursors: Default::default(),
1571 editor_actions: Default::default(),
1572 vim_replace_map: Default::default(),
1573 show_copilot_suggestions: mode == EditorMode::Full,
1574 custom_context_menu: None,
1575 _subscriptions: vec![
1576 cx.observe(&buffer, Self::on_buffer_changed),
1577 cx.subscribe(&buffer, Self::on_buffer_event),
1578 cx.observe(&display_map, Self::on_display_map_changed),
1579 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1580 cx.observe_global::<SettingsStore>(Self::settings_changed),
1581 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1582 cx.observe_window_activation(|editor, cx| {
1583 let active = cx.is_window_active();
1584 editor.blink_manager.update(cx, |blink_manager, cx| {
1585 if active {
1586 blink_manager.enable(cx);
1587 } else {
1588 blink_manager.show_cursor(cx);
1589 blink_manager.disable(cx);
1590 }
1591 });
1592 }),
1593 ],
1594 };
1595
1596 this._subscriptions.extend(project_subscriptions);
1597
1598 this.end_selection(cx);
1599 this.scroll_manager.show_scrollbar(cx);
1600
1601 if mode == EditorMode::Full {
1602 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1603 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1604 }
1605
1606 this.report_editor_event("open", None, cx);
1607 this
1608 }
1609
1610 fn key_context(&self, cx: &AppContext) -> KeyContext {
1611 let mut key_context = KeyContext::default();
1612 key_context.add("Editor");
1613 let mode = match self.mode {
1614 EditorMode::SingleLine => "single_line",
1615 EditorMode::AutoHeight { .. } => "auto_height",
1616 EditorMode::Full => "full",
1617 };
1618 key_context.set("mode", mode);
1619 if self.pending_rename.is_some() {
1620 key_context.add("renaming");
1621 }
1622 if self.context_menu_visible() {
1623 match self.context_menu.read().as_ref() {
1624 Some(ContextMenu::Completions(_)) => {
1625 key_context.add("menu");
1626 key_context.add("showing_completions")
1627 }
1628 Some(ContextMenu::CodeActions(_)) => {
1629 key_context.add("menu");
1630 key_context.add("showing_code_actions")
1631 }
1632 None => {}
1633 }
1634 }
1635
1636 for layer in self.keymap_context_layers.values() {
1637 key_context.extend(layer);
1638 }
1639
1640 if let Some(extension) = self
1641 .buffer
1642 .read(cx)
1643 .as_singleton()
1644 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1645 {
1646 key_context.set("extension", extension.to_string());
1647 }
1648
1649 if self.has_active_copilot_suggestion(cx) {
1650 key_context.add("copilot_suggestion");
1651 }
1652
1653 key_context
1654 }
1655
1656 pub fn new_file(
1657 workspace: &mut Workspace,
1658 _: &workspace::NewFile,
1659 cx: &mut ViewContext<Workspace>,
1660 ) {
1661 let project = workspace.project().clone();
1662 if project.read(cx).is_remote() {
1663 cx.propagate();
1664 } else if let Some(buffer) = project
1665 .update(cx, |project, cx| project.create_buffer("", None, cx))
1666 .log_err()
1667 {
1668 workspace.add_item_to_active_pane(
1669 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1670 cx,
1671 );
1672 }
1673 }
1674
1675 pub fn new_file_in_direction(
1676 workspace: &mut Workspace,
1677 action: &workspace::NewFileInDirection,
1678 cx: &mut ViewContext<Workspace>,
1679 ) {
1680 let project = workspace.project().clone();
1681 if project.read(cx).is_remote() {
1682 cx.propagate();
1683 } else if let Some(buffer) = project
1684 .update(cx, |project, cx| project.create_buffer("", None, cx))
1685 .log_err()
1686 {
1687 workspace.split_item(
1688 action.0,
1689 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1690 cx,
1691 );
1692 }
1693 }
1694
1695 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1696 self.buffer.read(cx).replica_id()
1697 }
1698
1699 pub fn leader_peer_id(&self) -> Option<PeerId> {
1700 self.leader_peer_id
1701 }
1702
1703 pub fn buffer(&self) -> &Model<MultiBuffer> {
1704 &self.buffer
1705 }
1706
1707 pub fn workspace(&self) -> Option<View<Workspace>> {
1708 self.workspace.as_ref()?.0.upgrade()
1709 }
1710
1711 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1712 self.buffer().read(cx).title(cx)
1713 }
1714
1715 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1716 EditorSnapshot {
1717 mode: self.mode,
1718 show_gutter: self.show_gutter,
1719 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1720 scroll_anchor: self.scroll_manager.anchor(),
1721 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1722 placeholder_text: self.placeholder_text.clone(),
1723 is_focused: self.focus_handle.is_focused(cx),
1724 }
1725 }
1726
1727 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1728 self.buffer.read(cx).language_at(point, cx)
1729 }
1730
1731 pub fn file_at<T: ToOffset>(
1732 &self,
1733 point: T,
1734 cx: &AppContext,
1735 ) -> Option<Arc<dyn language::File>> {
1736 self.buffer.read(cx).read(cx).file_at(point).cloned()
1737 }
1738
1739 pub fn active_excerpt(
1740 &self,
1741 cx: &AppContext,
1742 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1743 self.buffer
1744 .read(cx)
1745 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1746 }
1747
1748 pub fn mode(&self) -> EditorMode {
1749 self.mode
1750 }
1751
1752 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1753 self.collaboration_hub.as_deref()
1754 }
1755
1756 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1757 self.collaboration_hub = Some(hub);
1758 }
1759
1760 pub fn set_custom_context_menu(
1761 &mut self,
1762 f: impl 'static
1763 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1764 ) {
1765 self.custom_context_menu = Some(Box::new(f))
1766 }
1767
1768 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1769 self.completion_provider = Some(hub);
1770 }
1771
1772 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1773 self.placeholder_text.as_deref()
1774 }
1775
1776 pub fn set_placeholder_text(
1777 &mut self,
1778 placeholder_text: impl Into<Arc<str>>,
1779 cx: &mut ViewContext<Self>,
1780 ) {
1781 let placeholder_text = Some(placeholder_text.into());
1782 if self.placeholder_text != placeholder_text {
1783 self.placeholder_text = placeholder_text;
1784 cx.notify();
1785 }
1786 }
1787
1788 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1789 self.cursor_shape = cursor_shape;
1790 cx.notify();
1791 }
1792
1793 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1794 self.collapse_matches = collapse_matches;
1795 }
1796
1797 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1798 if self.collapse_matches {
1799 return range.start..range.start;
1800 }
1801 range.clone()
1802 }
1803
1804 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1805 if self.display_map.read(cx).clip_at_line_ends != clip {
1806 self.display_map
1807 .update(cx, |map, _| map.clip_at_line_ends = clip);
1808 }
1809 }
1810
1811 pub fn set_keymap_context_layer<Tag: 'static>(
1812 &mut self,
1813 context: KeyContext,
1814 cx: &mut ViewContext<Self>,
1815 ) {
1816 self.keymap_context_layers
1817 .insert(TypeId::of::<Tag>(), context);
1818 cx.notify();
1819 }
1820
1821 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1822 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1823 cx.notify();
1824 }
1825
1826 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1827 self.input_enabled = input_enabled;
1828 }
1829
1830 pub fn set_autoindent(&mut self, autoindent: bool) {
1831 if autoindent {
1832 self.autoindent_mode = Some(AutoindentMode::EachLine);
1833 } else {
1834 self.autoindent_mode = None;
1835 }
1836 }
1837
1838 pub fn read_only(&self, cx: &AppContext) -> bool {
1839 self.read_only || self.buffer.read(cx).read_only()
1840 }
1841
1842 pub fn set_read_only(&mut self, read_only: bool) {
1843 self.read_only = read_only;
1844 }
1845
1846 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1847 self.use_autoclose = autoclose;
1848 }
1849
1850 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1851 self.auto_replace_emoji_shortcode = auto_replace;
1852 }
1853
1854 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1855 self.show_copilot_suggestions = show_copilot_suggestions;
1856 }
1857
1858 pub fn set_use_modal_editing(&mut self, to: bool) {
1859 self.use_modal_editing = to;
1860 }
1861
1862 pub fn use_modal_editing(&self) -> bool {
1863 self.use_modal_editing
1864 }
1865
1866 fn selections_did_change(
1867 &mut self,
1868 local: bool,
1869 old_cursor_position: &Anchor,
1870 cx: &mut ViewContext<Self>,
1871 ) {
1872 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1873 self.buffer.update(cx, |buffer, cx| {
1874 buffer.set_active_selections(
1875 &self.selections.disjoint_anchors(),
1876 self.selections.line_mode,
1877 self.cursor_shape,
1878 cx,
1879 )
1880 });
1881 }
1882
1883 let display_map = self
1884 .display_map
1885 .update(cx, |display_map, cx| display_map.snapshot(cx));
1886 let buffer = &display_map.buffer_snapshot;
1887 self.add_selections_state = None;
1888 self.select_next_state = None;
1889 self.select_prev_state = None;
1890 self.select_larger_syntax_node_stack.clear();
1891 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1892 self.snippet_stack
1893 .invalidate(&self.selections.disjoint_anchors(), buffer);
1894 self.take_rename(false, cx);
1895
1896 let new_cursor_position = self.selections.newest_anchor().head();
1897
1898 self.push_to_nav_history(
1899 *old_cursor_position,
1900 Some(new_cursor_position.to_point(buffer)),
1901 cx,
1902 );
1903
1904 if local {
1905 let new_cursor_position = self.selections.newest_anchor().head();
1906 let mut context_menu = self.context_menu.write();
1907 let completion_menu = match context_menu.as_ref() {
1908 Some(ContextMenu::Completions(menu)) => Some(menu),
1909
1910 _ => {
1911 *context_menu = None;
1912 None
1913 }
1914 };
1915
1916 if let Some(completion_menu) = completion_menu {
1917 let cursor_position = new_cursor_position.to_offset(buffer);
1918 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
1919 if kind == Some(CharKind::Word)
1920 && word_range.to_inclusive().contains(&cursor_position)
1921 {
1922 let mut completion_menu = completion_menu.clone();
1923 drop(context_menu);
1924
1925 let query = Self::completion_query(buffer, cursor_position);
1926 cx.spawn(move |this, mut cx| async move {
1927 completion_menu
1928 .filter(query.as_deref(), cx.background_executor().clone())
1929 .await;
1930
1931 this.update(&mut cx, |this, cx| {
1932 let mut context_menu = this.context_menu.write();
1933 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1934 return;
1935 };
1936
1937 if menu.id > completion_menu.id {
1938 return;
1939 }
1940
1941 *context_menu = Some(ContextMenu::Completions(completion_menu));
1942 drop(context_menu);
1943 cx.notify();
1944 })
1945 })
1946 .detach();
1947
1948 self.show_completions(&ShowCompletions, cx);
1949 } else {
1950 drop(context_menu);
1951 self.hide_context_menu(cx);
1952 }
1953 } else {
1954 drop(context_menu);
1955 }
1956
1957 hide_hover(self, cx);
1958
1959 if old_cursor_position.to_display_point(&display_map).row()
1960 != new_cursor_position.to_display_point(&display_map).row()
1961 {
1962 self.available_code_actions.take();
1963 }
1964 self.refresh_code_actions(cx);
1965 self.refresh_document_highlights(cx);
1966 refresh_matching_bracket_highlights(self, cx);
1967 self.discard_copilot_suggestion(cx);
1968 }
1969
1970 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1971 cx.emit(EditorEvent::SelectionsChanged { local });
1972
1973 if self.selections.disjoint_anchors().len() == 1 {
1974 cx.emit(SearchEvent::ActiveMatchChanged)
1975 }
1976
1977 cx.notify();
1978 }
1979
1980 pub fn change_selections<R>(
1981 &mut self,
1982 autoscroll: Option<Autoscroll>,
1983 cx: &mut ViewContext<Self>,
1984 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1985 ) -> R {
1986 let old_cursor_position = self.selections.newest_anchor().head();
1987 self.push_to_selection_history();
1988
1989 let (changed, result) = self.selections.change_with(cx, change);
1990
1991 if changed {
1992 if let Some(autoscroll) = autoscroll {
1993 self.request_autoscroll(autoscroll, cx);
1994 }
1995 self.selections_did_change(true, &old_cursor_position, cx);
1996 }
1997
1998 result
1999 }
2000
2001 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2002 where
2003 I: IntoIterator<Item = (Range<S>, T)>,
2004 S: ToOffset,
2005 T: Into<Arc<str>>,
2006 {
2007 if self.read_only(cx) {
2008 return;
2009 }
2010
2011 self.buffer
2012 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2013 }
2014
2015 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2016 where
2017 I: IntoIterator<Item = (Range<S>, T)>,
2018 S: ToOffset,
2019 T: Into<Arc<str>>,
2020 {
2021 if self.read_only(cx) {
2022 return;
2023 }
2024
2025 self.buffer.update(cx, |buffer, cx| {
2026 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2027 });
2028 }
2029
2030 pub fn edit_with_block_indent<I, S, T>(
2031 &mut self,
2032 edits: I,
2033 original_indent_columns: Vec<u32>,
2034 cx: &mut ViewContext<Self>,
2035 ) where
2036 I: IntoIterator<Item = (Range<S>, T)>,
2037 S: ToOffset,
2038 T: Into<Arc<str>>,
2039 {
2040 if self.read_only(cx) {
2041 return;
2042 }
2043
2044 self.buffer.update(cx, |buffer, cx| {
2045 buffer.edit(
2046 edits,
2047 Some(AutoindentMode::Block {
2048 original_indent_columns,
2049 }),
2050 cx,
2051 )
2052 });
2053 }
2054
2055 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2056 self.hide_context_menu(cx);
2057
2058 match phase {
2059 SelectPhase::Begin {
2060 position,
2061 add,
2062 click_count,
2063 } => self.begin_selection(position, add, click_count, cx),
2064 SelectPhase::BeginColumnar {
2065 position,
2066 goal_column,
2067 } => self.begin_columnar_selection(position, goal_column, cx),
2068 SelectPhase::Extend {
2069 position,
2070 click_count,
2071 } => self.extend_selection(position, click_count, cx),
2072 SelectPhase::Update {
2073 position,
2074 goal_column,
2075 scroll_delta,
2076 } => self.update_selection(position, goal_column, scroll_delta, cx),
2077 SelectPhase::End => self.end_selection(cx),
2078 }
2079 }
2080
2081 fn extend_selection(
2082 &mut self,
2083 position: DisplayPoint,
2084 click_count: usize,
2085 cx: &mut ViewContext<Self>,
2086 ) {
2087 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2088 let tail = self.selections.newest::<usize>(cx).tail();
2089 self.begin_selection(position, false, click_count, cx);
2090
2091 let position = position.to_offset(&display_map, Bias::Left);
2092 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2093
2094 let mut pending_selection = self
2095 .selections
2096 .pending_anchor()
2097 .expect("extend_selection not called with pending selection");
2098 if position >= tail {
2099 pending_selection.start = tail_anchor;
2100 } else {
2101 pending_selection.end = tail_anchor;
2102 pending_selection.reversed = true;
2103 }
2104
2105 let mut pending_mode = self.selections.pending_mode().unwrap();
2106 match &mut pending_mode {
2107 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2108 _ => {}
2109 }
2110
2111 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2112 s.set_pending(pending_selection, pending_mode)
2113 });
2114 }
2115
2116 fn begin_selection(
2117 &mut self,
2118 position: DisplayPoint,
2119 add: bool,
2120 click_count: usize,
2121 cx: &mut ViewContext<Self>,
2122 ) {
2123 if !self.focus_handle.is_focused(cx) {
2124 cx.focus(&self.focus_handle);
2125 }
2126
2127 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2128 let buffer = &display_map.buffer_snapshot;
2129 let newest_selection = self.selections.newest_anchor().clone();
2130 let position = display_map.clip_point(position, Bias::Left);
2131
2132 let start;
2133 let end;
2134 let mode;
2135 let auto_scroll;
2136 match click_count {
2137 1 => {
2138 start = buffer.anchor_before(position.to_point(&display_map));
2139 end = start;
2140 mode = SelectMode::Character;
2141 auto_scroll = true;
2142 }
2143 2 => {
2144 let range = movement::surrounding_word(&display_map, position);
2145 start = buffer.anchor_before(range.start.to_point(&display_map));
2146 end = buffer.anchor_before(range.end.to_point(&display_map));
2147 mode = SelectMode::Word(start..end);
2148 auto_scroll = true;
2149 }
2150 3 => {
2151 let position = display_map
2152 .clip_point(position, Bias::Left)
2153 .to_point(&display_map);
2154 let line_start = display_map.prev_line_boundary(position).0;
2155 let next_line_start = buffer.clip_point(
2156 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2157 Bias::Left,
2158 );
2159 start = buffer.anchor_before(line_start);
2160 end = buffer.anchor_before(next_line_start);
2161 mode = SelectMode::Line(start..end);
2162 auto_scroll = true;
2163 }
2164 _ => {
2165 start = buffer.anchor_before(0);
2166 end = buffer.anchor_before(buffer.len());
2167 mode = SelectMode::All;
2168 auto_scroll = false;
2169 }
2170 }
2171
2172 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2173 if !add {
2174 s.clear_disjoint();
2175 } else if click_count > 1 {
2176 s.delete(newest_selection.id)
2177 }
2178
2179 s.set_pending_anchor_range(start..end, mode);
2180 });
2181 }
2182
2183 fn begin_columnar_selection(
2184 &mut self,
2185 position: DisplayPoint,
2186 goal_column: u32,
2187 cx: &mut ViewContext<Self>,
2188 ) {
2189 if !self.focus_handle.is_focused(cx) {
2190 cx.focus(&self.focus_handle);
2191 }
2192
2193 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2194 let tail = self.selections.newest::<Point>(cx).tail();
2195 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2196
2197 self.select_columns(
2198 tail.to_display_point(&display_map),
2199 position,
2200 goal_column,
2201 &display_map,
2202 cx,
2203 );
2204 }
2205
2206 fn update_selection(
2207 &mut self,
2208 position: DisplayPoint,
2209 goal_column: u32,
2210 scroll_delta: gpui::Point<f32>,
2211 cx: &mut ViewContext<Self>,
2212 ) {
2213 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2214
2215 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2216 let tail = tail.to_display_point(&display_map);
2217 self.select_columns(tail, position, goal_column, &display_map, cx);
2218 } else if let Some(mut pending) = self.selections.pending_anchor() {
2219 let buffer = self.buffer.read(cx).snapshot(cx);
2220 let head;
2221 let tail;
2222 let mode = self.selections.pending_mode().unwrap();
2223 match &mode {
2224 SelectMode::Character => {
2225 head = position.to_point(&display_map);
2226 tail = pending.tail().to_point(&buffer);
2227 }
2228 SelectMode::Word(original_range) => {
2229 let original_display_range = original_range.start.to_display_point(&display_map)
2230 ..original_range.end.to_display_point(&display_map);
2231 let original_buffer_range = original_display_range.start.to_point(&display_map)
2232 ..original_display_range.end.to_point(&display_map);
2233 if movement::is_inside_word(&display_map, position)
2234 || original_display_range.contains(&position)
2235 {
2236 let word_range = movement::surrounding_word(&display_map, position);
2237 if word_range.start < original_display_range.start {
2238 head = word_range.start.to_point(&display_map);
2239 } else {
2240 head = word_range.end.to_point(&display_map);
2241 }
2242 } else {
2243 head = position.to_point(&display_map);
2244 }
2245
2246 if head <= original_buffer_range.start {
2247 tail = original_buffer_range.end;
2248 } else {
2249 tail = original_buffer_range.start;
2250 }
2251 }
2252 SelectMode::Line(original_range) => {
2253 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2254
2255 let position = display_map
2256 .clip_point(position, Bias::Left)
2257 .to_point(&display_map);
2258 let line_start = display_map.prev_line_boundary(position).0;
2259 let next_line_start = buffer.clip_point(
2260 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2261 Bias::Left,
2262 );
2263
2264 if line_start < original_range.start {
2265 head = line_start
2266 } else {
2267 head = next_line_start
2268 }
2269
2270 if head <= original_range.start {
2271 tail = original_range.end;
2272 } else {
2273 tail = original_range.start;
2274 }
2275 }
2276 SelectMode::All => {
2277 return;
2278 }
2279 };
2280
2281 if head < tail {
2282 pending.start = buffer.anchor_before(head);
2283 pending.end = buffer.anchor_before(tail);
2284 pending.reversed = true;
2285 } else {
2286 pending.start = buffer.anchor_before(tail);
2287 pending.end = buffer.anchor_before(head);
2288 pending.reversed = false;
2289 }
2290
2291 self.change_selections(None, cx, |s| {
2292 s.set_pending(pending, mode);
2293 });
2294 } else {
2295 log::error!("update_selection dispatched with no pending selection");
2296 return;
2297 }
2298
2299 self.apply_scroll_delta(scroll_delta, cx);
2300 cx.notify();
2301 }
2302
2303 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2304 self.columnar_selection_tail.take();
2305 if self.selections.pending_anchor().is_some() {
2306 let selections = self.selections.all::<usize>(cx);
2307 self.change_selections(None, cx, |s| {
2308 s.select(selections);
2309 s.clear_pending();
2310 });
2311 }
2312 }
2313
2314 fn select_columns(
2315 &mut self,
2316 tail: DisplayPoint,
2317 head: DisplayPoint,
2318 goal_column: u32,
2319 display_map: &DisplaySnapshot,
2320 cx: &mut ViewContext<Self>,
2321 ) {
2322 let start_row = cmp::min(tail.row(), head.row());
2323 let end_row = cmp::max(tail.row(), head.row());
2324 let start_column = cmp::min(tail.column(), goal_column);
2325 let end_column = cmp::max(tail.column(), goal_column);
2326 let reversed = start_column < tail.column();
2327
2328 let selection_ranges = (start_row..=end_row)
2329 .filter_map(|row| {
2330 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2331 let start = display_map
2332 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2333 .to_point(display_map);
2334 let end = display_map
2335 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2336 .to_point(display_map);
2337 if reversed {
2338 Some(end..start)
2339 } else {
2340 Some(start..end)
2341 }
2342 } else {
2343 None
2344 }
2345 })
2346 .collect::<Vec<_>>();
2347
2348 self.change_selections(None, cx, |s| {
2349 s.select_ranges(selection_ranges);
2350 });
2351 cx.notify();
2352 }
2353
2354 pub fn has_pending_nonempty_selection(&self) -> bool {
2355 let pending_nonempty_selection = match self.selections.pending_anchor() {
2356 Some(Selection { start, end, .. }) => start != end,
2357 None => false,
2358 };
2359 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2360 }
2361
2362 pub fn has_pending_selection(&self) -> bool {
2363 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2364 }
2365
2366 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2367 if self.dismiss_menus_and_popups(cx) {
2368 return;
2369 }
2370
2371 if self.mode == EditorMode::Full {
2372 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2373 return;
2374 }
2375 }
2376
2377 cx.propagate();
2378 }
2379
2380 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2381 if self.take_rename(false, cx).is_some() {
2382 return true;
2383 }
2384
2385 if hide_hover(self, cx) {
2386 return true;
2387 }
2388
2389 if self.hide_context_menu(cx).is_some() {
2390 return true;
2391 }
2392
2393 if self.discard_copilot_suggestion(cx) {
2394 return true;
2395 }
2396
2397 if self.snippet_stack.pop().is_some() {
2398 return true;
2399 }
2400
2401 if self.mode == EditorMode::Full {
2402 if self.active_diagnostics.is_some() {
2403 self.dismiss_diagnostics(cx);
2404 return true;
2405 }
2406 }
2407
2408 false
2409 }
2410
2411 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2412 let text: Arc<str> = text.into();
2413
2414 if self.read_only(cx) {
2415 return;
2416 }
2417
2418 let selections = self.selections.all_adjusted(cx);
2419 let mut brace_inserted = false;
2420 let mut edits = Vec::new();
2421 let mut new_selections = Vec::with_capacity(selections.len());
2422 let mut new_autoclose_regions = Vec::new();
2423 let snapshot = self.buffer.read(cx).read(cx);
2424
2425 for (selection, autoclose_region) in
2426 self.selections_with_autoclose_regions(selections, &snapshot)
2427 {
2428 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2429 // Determine if the inserted text matches the opening or closing
2430 // bracket of any of this language's bracket pairs.
2431 let mut bracket_pair = None;
2432 let mut is_bracket_pair_start = false;
2433 if !text.is_empty() {
2434 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2435 // and they are removing the character that triggered IME popup.
2436 for (pair, enabled) in scope.brackets() {
2437 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2438 bracket_pair = Some(pair.clone());
2439 is_bracket_pair_start = true;
2440 break;
2441 } else if pair.end.as_str() == text.as_ref() {
2442 bracket_pair = Some(pair.clone());
2443 break;
2444 }
2445 }
2446 }
2447
2448 if let Some(bracket_pair) = bracket_pair {
2449 if selection.is_empty() {
2450 if is_bracket_pair_start {
2451 let prefix_len = bracket_pair.start.len() - text.len();
2452
2453 // If the inserted text is a suffix of an opening bracket and the
2454 // selection is preceded by the rest of the opening bracket, then
2455 // insert the closing bracket.
2456 let following_text_allows_autoclose = snapshot
2457 .chars_at(selection.start)
2458 .next()
2459 .map_or(true, |c| scope.should_autoclose_before(c));
2460 let preceding_text_matches_prefix = prefix_len == 0
2461 || (selection.start.column >= (prefix_len as u32)
2462 && snapshot.contains_str_at(
2463 Point::new(
2464 selection.start.row,
2465 selection.start.column - (prefix_len as u32),
2466 ),
2467 &bracket_pair.start[..prefix_len],
2468 ));
2469 let autoclose = self.use_autoclose
2470 && snapshot.settings_at(selection.start, cx).use_autoclose;
2471 if autoclose
2472 && following_text_allows_autoclose
2473 && preceding_text_matches_prefix
2474 {
2475 let anchor = snapshot.anchor_before(selection.end);
2476 new_selections.push((selection.map(|_| anchor), text.len()));
2477 new_autoclose_regions.push((
2478 anchor,
2479 text.len(),
2480 selection.id,
2481 bracket_pair.clone(),
2482 ));
2483 edits.push((
2484 selection.range(),
2485 format!("{}{}", text, bracket_pair.end).into(),
2486 ));
2487 brace_inserted = true;
2488 continue;
2489 }
2490 }
2491
2492 if let Some(region) = autoclose_region {
2493 // If the selection is followed by an auto-inserted closing bracket,
2494 // then don't insert that closing bracket again; just move the selection
2495 // past the closing bracket.
2496 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2497 && text.as_ref() == region.pair.end.as_str();
2498 if should_skip {
2499 let anchor = snapshot.anchor_after(selection.end);
2500 new_selections
2501 .push((selection.map(|_| anchor), region.pair.end.len()));
2502 continue;
2503 }
2504 }
2505 }
2506 // If an opening bracket is 1 character long and is typed while
2507 // text is selected, then surround that text with the bracket pair.
2508 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2509 edits.push((selection.start..selection.start, text.clone()));
2510 edits.push((
2511 selection.end..selection.end,
2512 bracket_pair.end.as_str().into(),
2513 ));
2514 brace_inserted = true;
2515 new_selections.push((
2516 Selection {
2517 id: selection.id,
2518 start: snapshot.anchor_after(selection.start),
2519 end: snapshot.anchor_before(selection.end),
2520 reversed: selection.reversed,
2521 goal: selection.goal,
2522 },
2523 0,
2524 ));
2525 continue;
2526 }
2527 }
2528 }
2529
2530 if self.auto_replace_emoji_shortcode
2531 && selection.is_empty()
2532 && text.as_ref().ends_with(':')
2533 {
2534 if let Some(possible_emoji_short_code) =
2535 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2536 {
2537 if !possible_emoji_short_code.is_empty() {
2538 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2539 let emoji_shortcode_start = Point::new(
2540 selection.start.row,
2541 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2542 );
2543
2544 // Remove shortcode from buffer
2545 edits.push((
2546 emoji_shortcode_start..selection.start,
2547 "".to_string().into(),
2548 ));
2549 new_selections.push((
2550 Selection {
2551 id: selection.id,
2552 start: snapshot.anchor_after(emoji_shortcode_start),
2553 end: snapshot.anchor_before(selection.start),
2554 reversed: selection.reversed,
2555 goal: selection.goal,
2556 },
2557 0,
2558 ));
2559
2560 // Insert emoji
2561 let selection_start_anchor = snapshot.anchor_after(selection.start);
2562 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2563 edits.push((selection.start..selection.end, emoji.to_string().into()));
2564
2565 continue;
2566 }
2567 }
2568 }
2569 }
2570
2571 // If not handling any auto-close operation, then just replace the selected
2572 // text with the given input and move the selection to the end of the
2573 // newly inserted text.
2574 let anchor = snapshot.anchor_after(selection.end);
2575 new_selections.push((selection.map(|_| anchor), 0));
2576 edits.push((selection.start..selection.end, text.clone()));
2577 }
2578
2579 drop(snapshot);
2580 self.transact(cx, |this, cx| {
2581 this.buffer.update(cx, |buffer, cx| {
2582 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2583 });
2584
2585 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2586 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2587 let snapshot = this.buffer.read(cx).read(cx);
2588 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2589 .zip(new_selection_deltas)
2590 .map(|(selection, delta)| Selection {
2591 id: selection.id,
2592 start: selection.start + delta,
2593 end: selection.end + delta,
2594 reversed: selection.reversed,
2595 goal: SelectionGoal::None,
2596 })
2597 .collect::<Vec<_>>();
2598
2599 let mut i = 0;
2600 for (position, delta, selection_id, pair) in new_autoclose_regions {
2601 let position = position.to_offset(&snapshot) + delta;
2602 let start = snapshot.anchor_before(position);
2603 let end = snapshot.anchor_after(position);
2604 while let Some(existing_state) = this.autoclose_regions.get(i) {
2605 match existing_state.range.start.cmp(&start, &snapshot) {
2606 Ordering::Less => i += 1,
2607 Ordering::Greater => break,
2608 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2609 Ordering::Less => i += 1,
2610 Ordering::Equal => break,
2611 Ordering::Greater => break,
2612 },
2613 }
2614 }
2615 this.autoclose_regions.insert(
2616 i,
2617 AutocloseRegion {
2618 selection_id,
2619 range: start..end,
2620 pair,
2621 },
2622 );
2623 }
2624
2625 drop(snapshot);
2626 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2627 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2628
2629 if brace_inserted {
2630 // If we inserted a brace while composing text (i.e. typing `"` on a
2631 // Brazilian keyboard), exit the composing state because most likely
2632 // the user wanted to surround the selection.
2633 this.unmark_text(cx);
2634 } else if EditorSettings::get_global(cx).use_on_type_format {
2635 if let Some(on_type_format_task) =
2636 this.trigger_on_type_formatting(text.to_string(), cx)
2637 {
2638 on_type_format_task.detach_and_log_err(cx);
2639 }
2640 }
2641
2642 if had_active_copilot_suggestion {
2643 this.refresh_copilot_suggestions(true, cx);
2644 if !this.has_active_copilot_suggestion(cx) {
2645 this.trigger_completion_on_input(&text, cx);
2646 }
2647 } else {
2648 this.trigger_completion_on_input(&text, cx);
2649 this.refresh_copilot_suggestions(true, cx);
2650 }
2651 });
2652 }
2653
2654 fn find_possible_emoji_shortcode_at_position(
2655 snapshot: &MultiBufferSnapshot,
2656 position: Point,
2657 ) -> Option<String> {
2658 let mut chars = Vec::new();
2659 let mut found_colon = false;
2660 for char in snapshot.reversed_chars_at(position).take(100) {
2661 // Found a possible emoji shortcode in the middle of the buffer
2662 if found_colon {
2663 if char.is_whitespace() {
2664 chars.reverse();
2665 return Some(chars.iter().collect());
2666 }
2667 // If the previous character is not a whitespace, we are in the middle of a word
2668 // and we only want to complete the shortcode if the word is made up of other emojis
2669 let mut containing_word = String::new();
2670 for ch in snapshot
2671 .reversed_chars_at(position)
2672 .skip(chars.len() + 1)
2673 .take(100)
2674 {
2675 if ch.is_whitespace() {
2676 break;
2677 }
2678 containing_word.push(ch);
2679 }
2680 let containing_word = containing_word.chars().rev().collect::<String>();
2681 if util::word_consists_of_emojis(containing_word.as_str()) {
2682 chars.reverse();
2683 return Some(chars.iter().collect());
2684 }
2685 }
2686
2687 if char.is_whitespace() || !char.is_ascii() {
2688 return None;
2689 }
2690 if char == ':' {
2691 found_colon = true;
2692 } else {
2693 chars.push(char);
2694 }
2695 }
2696 // Found a possible emoji shortcode at the beginning of the buffer
2697 chars.reverse();
2698 Some(chars.iter().collect())
2699 }
2700
2701 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2702 self.transact(cx, |this, cx| {
2703 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2704 let selections = this.selections.all::<usize>(cx);
2705 let multi_buffer = this.buffer.read(cx);
2706 let buffer = multi_buffer.snapshot(cx);
2707 selections
2708 .iter()
2709 .map(|selection| {
2710 let start_point = selection.start.to_point(&buffer);
2711 let mut indent = buffer.indent_size_for_line(start_point.row);
2712 indent.len = cmp::min(indent.len, start_point.column);
2713 let start = selection.start;
2714 let end = selection.end;
2715 let is_cursor = start == end;
2716 let language_scope = buffer.language_scope_at(start);
2717 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2718 &language_scope
2719 {
2720 let leading_whitespace_len = buffer
2721 .reversed_chars_at(start)
2722 .take_while(|c| c.is_whitespace() && *c != '\n')
2723 .map(|c| c.len_utf8())
2724 .sum::<usize>();
2725
2726 let trailing_whitespace_len = buffer
2727 .chars_at(end)
2728 .take_while(|c| c.is_whitespace() && *c != '\n')
2729 .map(|c| c.len_utf8())
2730 .sum::<usize>();
2731
2732 let insert_extra_newline =
2733 language.brackets().any(|(pair, enabled)| {
2734 let pair_start = pair.start.trim_end();
2735 let pair_end = pair.end.trim_start();
2736
2737 enabled
2738 && pair.newline
2739 && buffer.contains_str_at(
2740 end + trailing_whitespace_len,
2741 pair_end,
2742 )
2743 && buffer.contains_str_at(
2744 (start - leading_whitespace_len)
2745 .saturating_sub(pair_start.len()),
2746 pair_start,
2747 )
2748 });
2749 // Comment extension on newline is allowed only for cursor selections
2750 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2751 let is_comment_extension_enabled =
2752 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2753 is_cursor && is_comment_extension_enabled
2754 });
2755 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2756 let max_len_of_delimiter =
2757 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2758 let (snapshot, range) =
2759 buffer.buffer_line_for_row(start_point.row)?;
2760
2761 let mut index_of_first_non_whitespace = 0;
2762 let comment_candidate = snapshot
2763 .chars_for_range(range)
2764 .skip_while(|c| {
2765 let should_skip = c.is_whitespace();
2766 if should_skip {
2767 index_of_first_non_whitespace += 1;
2768 }
2769 should_skip
2770 })
2771 .take(max_len_of_delimiter)
2772 .collect::<String>();
2773 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2774 comment_candidate.starts_with(comment_prefix.as_ref())
2775 })?;
2776 let cursor_is_placed_after_comment_marker =
2777 index_of_first_non_whitespace + comment_prefix.len()
2778 <= start_point.column as usize;
2779 if cursor_is_placed_after_comment_marker {
2780 Some(comment_prefix.clone())
2781 } else {
2782 None
2783 }
2784 };
2785 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2786 get_comment_delimiter(delimiters)
2787 } else {
2788 None
2789 };
2790 (comment_delimiter, insert_extra_newline)
2791 } else {
2792 (None, false)
2793 };
2794
2795 let capacity_for_delimiter = comment_delimiter
2796 .as_deref()
2797 .map(str::len)
2798 .unwrap_or_default();
2799 let mut new_text =
2800 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2801 new_text.push_str("\n");
2802 new_text.extend(indent.chars());
2803 if let Some(delimiter) = &comment_delimiter {
2804 new_text.push_str(&delimiter);
2805 }
2806 if insert_extra_newline {
2807 new_text = new_text.repeat(2);
2808 }
2809
2810 let anchor = buffer.anchor_after(end);
2811 let new_selection = selection.map(|_| anchor);
2812 (
2813 (start..end, new_text),
2814 (insert_extra_newline, new_selection),
2815 )
2816 })
2817 .unzip()
2818 };
2819
2820 this.edit_with_autoindent(edits, cx);
2821 let buffer = this.buffer.read(cx).snapshot(cx);
2822 let new_selections = selection_fixup_info
2823 .into_iter()
2824 .map(|(extra_newline_inserted, new_selection)| {
2825 let mut cursor = new_selection.end.to_point(&buffer);
2826 if extra_newline_inserted {
2827 cursor.row -= 1;
2828 cursor.column = buffer.line_len(cursor.row);
2829 }
2830 new_selection.map(|_| cursor)
2831 })
2832 .collect();
2833
2834 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2835 this.refresh_copilot_suggestions(true, cx);
2836 });
2837 }
2838
2839 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2840 let buffer = self.buffer.read(cx);
2841 let snapshot = buffer.snapshot(cx);
2842
2843 let mut edits = Vec::new();
2844 let mut rows = Vec::new();
2845
2846 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
2847 let cursor = selection.head();
2848 let row = cursor.row;
2849
2850 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2851
2852 let newline = "\n".to_string();
2853 edits.push((start_of_line..start_of_line, newline));
2854
2855 rows.push(row + rows_inserted as u32);
2856 }
2857
2858 self.transact(cx, |editor, cx| {
2859 editor.edit(edits, cx);
2860
2861 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2862 let mut index = 0;
2863 s.move_cursors_with(|map, _, _| {
2864 let row = rows[index];
2865 index += 1;
2866
2867 let point = Point::new(row, 0);
2868 let boundary = map.next_line_boundary(point).1;
2869 let clipped = map.clip_point(boundary, Bias::Left);
2870
2871 (clipped, SelectionGoal::None)
2872 });
2873 });
2874
2875 let mut indent_edits = Vec::new();
2876 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2877 for row in rows {
2878 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2879 for (row, indent) in indents {
2880 if indent.len == 0 {
2881 continue;
2882 }
2883
2884 let text = match indent.kind {
2885 IndentKind::Space => " ".repeat(indent.len as usize),
2886 IndentKind::Tab => "\t".repeat(indent.len as usize),
2887 };
2888 let point = Point::new(row, 0);
2889 indent_edits.push((point..point, text));
2890 }
2891 }
2892 editor.edit(indent_edits, cx);
2893 });
2894 }
2895
2896 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2897 let buffer = self.buffer.read(cx);
2898 let snapshot = buffer.snapshot(cx);
2899
2900 let mut edits = Vec::new();
2901 let mut rows = Vec::new();
2902 let mut rows_inserted = 0;
2903
2904 for selection in self.selections.all_adjusted(cx) {
2905 let cursor = selection.head();
2906 let row = cursor.row;
2907
2908 let point = Point::new(row + 1, 0);
2909 let start_of_line = snapshot.clip_point(point, Bias::Left);
2910
2911 let newline = "\n".to_string();
2912 edits.push((start_of_line..start_of_line, newline));
2913
2914 rows_inserted += 1;
2915 rows.push(row + rows_inserted);
2916 }
2917
2918 self.transact(cx, |editor, cx| {
2919 editor.edit(edits, cx);
2920
2921 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2922 let mut index = 0;
2923 s.move_cursors_with(|map, _, _| {
2924 let row = rows[index];
2925 index += 1;
2926
2927 let point = Point::new(row, 0);
2928 let boundary = map.next_line_boundary(point).1;
2929 let clipped = map.clip_point(boundary, Bias::Left);
2930
2931 (clipped, SelectionGoal::None)
2932 });
2933 });
2934
2935 let mut indent_edits = Vec::new();
2936 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2937 for row in rows {
2938 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2939 for (row, indent) in indents {
2940 if indent.len == 0 {
2941 continue;
2942 }
2943
2944 let text = match indent.kind {
2945 IndentKind::Space => " ".repeat(indent.len as usize),
2946 IndentKind::Tab => "\t".repeat(indent.len as usize),
2947 };
2948 let point = Point::new(row, 0);
2949 indent_edits.push((point..point, text));
2950 }
2951 }
2952 editor.edit(indent_edits, cx);
2953 });
2954 }
2955
2956 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2957 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
2958 original_indent_columns: Vec::new(),
2959 });
2960 self.insert_with_autoindent_mode(text, autoindent, cx);
2961 }
2962
2963 fn insert_with_autoindent_mode(
2964 &mut self,
2965 text: &str,
2966 autoindent_mode: Option<AutoindentMode>,
2967 cx: &mut ViewContext<Self>,
2968 ) {
2969 if self.read_only(cx) {
2970 return;
2971 }
2972
2973 let text: Arc<str> = text.into();
2974 self.transact(cx, |this, cx| {
2975 let old_selections = this.selections.all_adjusted(cx);
2976 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2977 let anchors = {
2978 let snapshot = buffer.read(cx);
2979 old_selections
2980 .iter()
2981 .map(|s| {
2982 let anchor = snapshot.anchor_after(s.head());
2983 s.map(|_| anchor)
2984 })
2985 .collect::<Vec<_>>()
2986 };
2987 buffer.edit(
2988 old_selections
2989 .iter()
2990 .map(|s| (s.start..s.end, text.clone())),
2991 autoindent_mode,
2992 cx,
2993 );
2994 anchors
2995 });
2996
2997 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2998 s.select_anchors(selection_anchors);
2999 })
3000 });
3001 }
3002
3003 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3004 if !EditorSettings::get_global(cx).show_completions_on_input {
3005 return;
3006 }
3007
3008 let selection = self.selections.newest_anchor();
3009 if self
3010 .buffer
3011 .read(cx)
3012 .is_completion_trigger(selection.head(), text, cx)
3013 {
3014 self.show_completions(&ShowCompletions, cx);
3015 } else {
3016 self.hide_context_menu(cx);
3017 }
3018 }
3019
3020 /// If any empty selections is touching the start of its innermost containing autoclose
3021 /// region, expand it to select the brackets.
3022 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3023 let selections = self.selections.all::<usize>(cx);
3024 let buffer = self.buffer.read(cx).read(cx);
3025 let mut new_selections = Vec::new();
3026 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
3027 if let (Some(region), true) = (region, selection.is_empty()) {
3028 let mut range = region.range.to_offset(&buffer);
3029 if selection.start == range.start {
3030 if range.start >= region.pair.start.len() {
3031 range.start -= region.pair.start.len();
3032 if buffer.contains_str_at(range.start, ®ion.pair.start) {
3033 if buffer.contains_str_at(range.end, ®ion.pair.end) {
3034 range.end += region.pair.end.len();
3035 selection.start = range.start;
3036 selection.end = range.end;
3037 }
3038 }
3039 }
3040 }
3041 }
3042 new_selections.push(selection);
3043 }
3044
3045 drop(buffer);
3046 self.change_selections(None, cx, |selections| selections.select(new_selections));
3047 }
3048
3049 /// Iterate the given selections, and for each one, find the smallest surrounding
3050 /// autoclose region. This uses the ordering of the selections and the autoclose
3051 /// regions to avoid repeated comparisons.
3052 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3053 &'a self,
3054 selections: impl IntoIterator<Item = Selection<D>>,
3055 buffer: &'a MultiBufferSnapshot,
3056 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3057 let mut i = 0;
3058 let mut regions = self.autoclose_regions.as_slice();
3059 selections.into_iter().map(move |selection| {
3060 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3061
3062 let mut enclosing = None;
3063 while let Some(pair_state) = regions.get(i) {
3064 if pair_state.range.end.to_offset(buffer) < range.start {
3065 regions = ®ions[i + 1..];
3066 i = 0;
3067 } else if pair_state.range.start.to_offset(buffer) > range.end {
3068 break;
3069 } else {
3070 if pair_state.selection_id == selection.id {
3071 enclosing = Some(pair_state);
3072 }
3073 i += 1;
3074 }
3075 }
3076
3077 (selection.clone(), enclosing)
3078 })
3079 }
3080
3081 /// Remove any autoclose regions that no longer contain their selection.
3082 fn invalidate_autoclose_regions(
3083 &mut self,
3084 mut selections: &[Selection<Anchor>],
3085 buffer: &MultiBufferSnapshot,
3086 ) {
3087 self.autoclose_regions.retain(|state| {
3088 let mut i = 0;
3089 while let Some(selection) = selections.get(i) {
3090 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3091 selections = &selections[1..];
3092 continue;
3093 }
3094 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3095 break;
3096 }
3097 if selection.id == state.selection_id {
3098 return true;
3099 } else {
3100 i += 1;
3101 }
3102 }
3103 false
3104 });
3105 }
3106
3107 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3108 let offset = position.to_offset(buffer);
3109 let (word_range, kind) = buffer.surrounding_word(offset);
3110 if offset > word_range.start && kind == Some(CharKind::Word) {
3111 Some(
3112 buffer
3113 .text_for_range(word_range.start..offset)
3114 .collect::<String>(),
3115 )
3116 } else {
3117 None
3118 }
3119 }
3120
3121 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3122 self.refresh_inlay_hints(
3123 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3124 cx,
3125 );
3126 }
3127
3128 pub fn inlay_hints_enabled(&self) -> bool {
3129 self.inlay_hint_cache.enabled
3130 }
3131
3132 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3133 if self.project.is_none() || self.mode != EditorMode::Full {
3134 return;
3135 }
3136
3137 let reason_description = reason.description();
3138 let ignore_debounce = matches!(
3139 reason,
3140 InlayHintRefreshReason::SettingsChange(_)
3141 | InlayHintRefreshReason::Toggle(_)
3142 | InlayHintRefreshReason::ExcerptsRemoved(_)
3143 );
3144 let (invalidate_cache, required_languages) = match reason {
3145 InlayHintRefreshReason::Toggle(enabled) => {
3146 self.inlay_hint_cache.enabled = enabled;
3147 if enabled {
3148 (InvalidationStrategy::RefreshRequested, None)
3149 } else {
3150 self.inlay_hint_cache.clear();
3151 self.splice_inlays(
3152 self.visible_inlay_hints(cx)
3153 .iter()
3154 .map(|inlay| inlay.id)
3155 .collect(),
3156 Vec::new(),
3157 cx,
3158 );
3159 return;
3160 }
3161 }
3162 InlayHintRefreshReason::SettingsChange(new_settings) => {
3163 match self.inlay_hint_cache.update_settings(
3164 &self.buffer,
3165 new_settings,
3166 self.visible_inlay_hints(cx),
3167 cx,
3168 ) {
3169 ControlFlow::Break(Some(InlaySplice {
3170 to_remove,
3171 to_insert,
3172 })) => {
3173 self.splice_inlays(to_remove, to_insert, cx);
3174 return;
3175 }
3176 ControlFlow::Break(None) => return,
3177 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3178 }
3179 }
3180 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3181 if let Some(InlaySplice {
3182 to_remove,
3183 to_insert,
3184 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3185 {
3186 self.splice_inlays(to_remove, to_insert, cx);
3187 }
3188 return;
3189 }
3190 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3191 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3192 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3193 }
3194 InlayHintRefreshReason::RefreshRequested => {
3195 (InvalidationStrategy::RefreshRequested, None)
3196 }
3197 };
3198
3199 if let Some(InlaySplice {
3200 to_remove,
3201 to_insert,
3202 }) = self.inlay_hint_cache.spawn_hint_refresh(
3203 reason_description,
3204 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3205 invalidate_cache,
3206 ignore_debounce,
3207 cx,
3208 ) {
3209 self.splice_inlays(to_remove, to_insert, cx);
3210 }
3211 }
3212
3213 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3214 self.display_map
3215 .read(cx)
3216 .current_inlays()
3217 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3218 .cloned()
3219 .collect()
3220 }
3221
3222 pub fn excerpts_for_inlay_hints_query(
3223 &self,
3224 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3225 cx: &mut ViewContext<Editor>,
3226 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3227 let Some(project) = self.project.as_ref() else {
3228 return HashMap::default();
3229 };
3230 let project = project.read(cx);
3231 let multi_buffer = self.buffer().read(cx);
3232 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3233 let multi_buffer_visible_start = self
3234 .scroll_manager
3235 .anchor()
3236 .anchor
3237 .to_point(&multi_buffer_snapshot);
3238 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3239 multi_buffer_visible_start
3240 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3241 Bias::Left,
3242 );
3243 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3244 multi_buffer
3245 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3246 .into_iter()
3247 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3248 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3249 let buffer = buffer_handle.read(cx);
3250 let buffer_file = project::File::from_dyn(buffer.file())?;
3251 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3252 let worktree_entry = buffer_worktree
3253 .read(cx)
3254 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3255 if worktree_entry.is_ignored {
3256 return None;
3257 }
3258
3259 let language = buffer.language()?;
3260 if let Some(restrict_to_languages) = restrict_to_languages {
3261 if !restrict_to_languages.contains(language) {
3262 return None;
3263 }
3264 }
3265 Some((
3266 excerpt_id,
3267 (
3268 buffer_handle,
3269 buffer.version().clone(),
3270 excerpt_visible_range,
3271 ),
3272 ))
3273 })
3274 .collect()
3275 }
3276
3277 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3278 TextLayoutDetails {
3279 text_system: cx.text_system().clone(),
3280 editor_style: self.style.clone().unwrap(),
3281 rem_size: cx.rem_size(),
3282 scroll_anchor: self.scroll_manager.anchor(),
3283 visible_rows: self.visible_line_count(),
3284 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3285 }
3286 }
3287
3288 fn splice_inlays(
3289 &self,
3290 to_remove: Vec<InlayId>,
3291 to_insert: Vec<Inlay>,
3292 cx: &mut ViewContext<Self>,
3293 ) {
3294 self.display_map.update(cx, |display_map, cx| {
3295 display_map.splice_inlays(to_remove, to_insert, cx);
3296 });
3297 cx.notify();
3298 }
3299
3300 fn trigger_on_type_formatting(
3301 &self,
3302 input: String,
3303 cx: &mut ViewContext<Self>,
3304 ) -> Option<Task<Result<()>>> {
3305 if input.len() != 1 {
3306 return None;
3307 }
3308
3309 let project = self.project.as_ref()?;
3310 let position = self.selections.newest_anchor().head();
3311 let (buffer, buffer_position) = self
3312 .buffer
3313 .read(cx)
3314 .text_anchor_for_position(position, cx)?;
3315
3316 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3317 // hence we do LSP request & edit on host side only — add formats to host's history.
3318 let push_to_lsp_host_history = true;
3319 // If this is not the host, append its history with new edits.
3320 let push_to_client_history = project.read(cx).is_remote();
3321
3322 let on_type_formatting = project.update(cx, |project, cx| {
3323 project.on_type_format(
3324 buffer.clone(),
3325 buffer_position,
3326 input,
3327 push_to_lsp_host_history,
3328 cx,
3329 )
3330 });
3331 Some(cx.spawn(|editor, mut cx| async move {
3332 if let Some(transaction) = on_type_formatting.await? {
3333 if push_to_client_history {
3334 buffer
3335 .update(&mut cx, |buffer, _| {
3336 buffer.push_transaction(transaction, Instant::now());
3337 })
3338 .ok();
3339 }
3340 editor.update(&mut cx, |editor, cx| {
3341 editor.refresh_document_highlights(cx);
3342 })?;
3343 }
3344 Ok(())
3345 }))
3346 }
3347
3348 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3349 if self.pending_rename.is_some() {
3350 return;
3351 }
3352
3353 let Some(provider) = self.completion_provider.as_ref() else {
3354 return;
3355 };
3356
3357 let position = self.selections.newest_anchor().head();
3358 let (buffer, buffer_position) =
3359 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3360 output
3361 } else {
3362 return;
3363 };
3364
3365 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3366 let completions = provider.completions(&buffer, buffer_position, cx);
3367
3368 let id = post_inc(&mut self.next_completion_id);
3369 let task = cx.spawn(|this, mut cx| {
3370 async move {
3371 let completions = completions.await.log_err();
3372 let menu = if let Some(completions) = completions {
3373 let mut menu = CompletionsMenu {
3374 id,
3375 initial_position: position,
3376 match_candidates: completions
3377 .iter()
3378 .enumerate()
3379 .map(|(id, completion)| {
3380 StringMatchCandidate::new(
3381 id,
3382 completion.label.text[completion.label.filter_range.clone()]
3383 .into(),
3384 )
3385 })
3386 .collect(),
3387 buffer,
3388 completions: Arc::new(RwLock::new(completions.into())),
3389 matches: Vec::new().into(),
3390 selected_item: 0,
3391 scroll_handle: UniformListScrollHandle::new(),
3392 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3393 DebouncedDelay::new(),
3394 )),
3395 };
3396 menu.filter(query.as_deref(), cx.background_executor().clone())
3397 .await;
3398
3399 if menu.matches.is_empty() {
3400 None
3401 } else {
3402 this.update(&mut cx, |editor, cx| {
3403 let completions = menu.completions.clone();
3404 let matches = menu.matches.clone();
3405
3406 let delay_ms = EditorSettings::get_global(cx)
3407 .completion_documentation_secondary_query_debounce;
3408 let delay = Duration::from_millis(delay_ms);
3409
3410 editor
3411 .completion_documentation_pre_resolve_debounce
3412 .fire_new(delay, cx, |editor, cx| {
3413 CompletionsMenu::pre_resolve_completion_documentation(
3414 completions,
3415 matches,
3416 editor,
3417 cx,
3418 )
3419 });
3420 })
3421 .ok();
3422 Some(menu)
3423 }
3424 } else {
3425 None
3426 };
3427
3428 this.update(&mut cx, |this, cx| {
3429 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3430
3431 let mut context_menu = this.context_menu.write();
3432 match context_menu.as_ref() {
3433 None => {}
3434
3435 Some(ContextMenu::Completions(prev_menu)) => {
3436 if prev_menu.id > id {
3437 return;
3438 }
3439 }
3440
3441 _ => return,
3442 }
3443
3444 if this.focus_handle.is_focused(cx) && menu.is_some() {
3445 let menu = menu.unwrap();
3446 *context_menu = Some(ContextMenu::Completions(menu));
3447 drop(context_menu);
3448 this.discard_copilot_suggestion(cx);
3449 cx.notify();
3450 } else if this.completion_tasks.len() <= 1 {
3451 // If there are no more completion tasks and the last menu was
3452 // empty, we should hide it. If it was already hidden, we should
3453 // also show the copilot suggestion when available.
3454 drop(context_menu);
3455 if this.hide_context_menu(cx).is_none() {
3456 this.update_visible_copilot_suggestion(cx);
3457 }
3458 }
3459 })?;
3460
3461 Ok::<_, anyhow::Error>(())
3462 }
3463 .log_err()
3464 });
3465
3466 self.completion_tasks.push((id, task));
3467 }
3468
3469 pub fn confirm_completion(
3470 &mut self,
3471 action: &ConfirmCompletion,
3472 cx: &mut ViewContext<Self>,
3473 ) -> Option<Task<Result<()>>> {
3474 use language::ToOffset as _;
3475
3476 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3477 menu
3478 } else {
3479 return None;
3480 };
3481
3482 let mat = completions_menu
3483 .matches
3484 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3485 let buffer_handle = completions_menu.buffer;
3486 let completions = completions_menu.completions.read();
3487 let completion = completions.get(mat.candidate_id)?;
3488 cx.stop_propagation();
3489
3490 let snippet;
3491 let text;
3492 if completion.is_snippet() {
3493 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3494 text = snippet.as_ref().unwrap().text.clone();
3495 } else {
3496 snippet = None;
3497 text = completion.new_text.clone();
3498 };
3499 let selections = self.selections.all::<usize>(cx);
3500 let buffer = buffer_handle.read(cx);
3501 let old_range = completion.old_range.to_offset(buffer);
3502 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3503
3504 let newest_selection = self.selections.newest_anchor();
3505 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3506 return None;
3507 }
3508
3509 let lookbehind = newest_selection
3510 .start
3511 .text_anchor
3512 .to_offset(buffer)
3513 .saturating_sub(old_range.start);
3514 let lookahead = old_range
3515 .end
3516 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3517 let mut common_prefix_len = old_text
3518 .bytes()
3519 .zip(text.bytes())
3520 .take_while(|(a, b)| a == b)
3521 .count();
3522
3523 let snapshot = self.buffer.read(cx).snapshot(cx);
3524 let mut range_to_replace: Option<Range<isize>> = None;
3525 let mut ranges = Vec::new();
3526 for selection in &selections {
3527 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3528 let start = selection.start.saturating_sub(lookbehind);
3529 let end = selection.end + lookahead;
3530 if selection.id == newest_selection.id {
3531 range_to_replace = Some(
3532 ((start + common_prefix_len) as isize - selection.start as isize)
3533 ..(end as isize - selection.start as isize),
3534 );
3535 }
3536 ranges.push(start + common_prefix_len..end);
3537 } else {
3538 common_prefix_len = 0;
3539 ranges.clear();
3540 ranges.extend(selections.iter().map(|s| {
3541 if s.id == newest_selection.id {
3542 range_to_replace = Some(
3543 old_range.start.to_offset_utf16(&snapshot).0 as isize
3544 - selection.start as isize
3545 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3546 - selection.start as isize,
3547 );
3548 old_range.clone()
3549 } else {
3550 s.start..s.end
3551 }
3552 }));
3553 break;
3554 }
3555 }
3556 let text = &text[common_prefix_len..];
3557
3558 cx.emit(EditorEvent::InputHandled {
3559 utf16_range_to_replace: range_to_replace,
3560 text: text.into(),
3561 });
3562
3563 self.transact(cx, |this, cx| {
3564 if let Some(mut snippet) = snippet {
3565 snippet.text = text.to_string();
3566 for tabstop in snippet.tabstops.iter_mut().flatten() {
3567 tabstop.start -= common_prefix_len as isize;
3568 tabstop.end -= common_prefix_len as isize;
3569 }
3570
3571 this.insert_snippet(&ranges, snippet, cx).log_err();
3572 } else {
3573 this.buffer.update(cx, |buffer, cx| {
3574 buffer.edit(
3575 ranges.iter().map(|range| (range.clone(), text)),
3576 this.autoindent_mode.clone(),
3577 cx,
3578 );
3579 });
3580 }
3581
3582 this.refresh_copilot_suggestions(true, cx);
3583 });
3584
3585 let provider = self.completion_provider.as_ref()?;
3586 let apply_edits = provider.apply_additional_edits_for_completion(
3587 buffer_handle,
3588 completion.clone(),
3589 true,
3590 cx,
3591 );
3592 Some(cx.foreground_executor().spawn(async move {
3593 apply_edits.await?;
3594 Ok(())
3595 }))
3596 }
3597
3598 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3599 let mut context_menu = self.context_menu.write();
3600 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3601 *context_menu = None;
3602 cx.notify();
3603 return;
3604 }
3605 drop(context_menu);
3606
3607 let deployed_from_indicator = action.deployed_from_indicator;
3608 let mut task = self.code_actions_task.take();
3609 cx.spawn(|this, mut cx| async move {
3610 while let Some(prev_task) = task {
3611 prev_task.await;
3612 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3613 }
3614
3615 this.update(&mut cx, |this, cx| {
3616 if this.focus_handle.is_focused(cx) {
3617 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3618 this.completion_tasks.clear();
3619 this.discard_copilot_suggestion(cx);
3620 *this.context_menu.write() =
3621 Some(ContextMenu::CodeActions(CodeActionsMenu {
3622 buffer,
3623 actions,
3624 selected_item: Default::default(),
3625 scroll_handle: UniformListScrollHandle::default(),
3626 deployed_from_indicator,
3627 }));
3628 cx.notify();
3629 }
3630 }
3631 })?;
3632
3633 Ok::<_, anyhow::Error>(())
3634 })
3635 .detach_and_log_err(cx);
3636 }
3637
3638 pub fn confirm_code_action(
3639 &mut self,
3640 action: &ConfirmCodeAction,
3641 cx: &mut ViewContext<Self>,
3642 ) -> Option<Task<Result<()>>> {
3643 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3644 menu
3645 } else {
3646 return None;
3647 };
3648 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3649 let action = actions_menu.actions.get(action_ix)?.clone();
3650 let title = action.lsp_action.title.clone();
3651 let buffer = actions_menu.buffer;
3652 let workspace = self.workspace()?;
3653
3654 let apply_code_actions = workspace
3655 .read(cx)
3656 .project()
3657 .clone()
3658 .update(cx, |project, cx| {
3659 project.apply_code_action(buffer, action, true, cx)
3660 });
3661 let workspace = workspace.downgrade();
3662 Some(cx.spawn(|editor, cx| async move {
3663 let project_transaction = apply_code_actions.await?;
3664 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3665 }))
3666 }
3667
3668 async fn open_project_transaction(
3669 this: &WeakView<Editor>,
3670 workspace: WeakView<Workspace>,
3671 transaction: ProjectTransaction,
3672 title: String,
3673 mut cx: AsyncWindowContext,
3674 ) -> Result<()> {
3675 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3676
3677 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3678 cx.update(|cx| {
3679 entries.sort_unstable_by_key(|(buffer, _)| {
3680 buffer.read(cx).file().map(|f| f.path().clone())
3681 });
3682 })?;
3683
3684 // If the project transaction's edits are all contained within this editor, then
3685 // avoid opening a new editor to display them.
3686
3687 if let Some((buffer, transaction)) = entries.first() {
3688 if entries.len() == 1 {
3689 let excerpt = this.update(&mut cx, |editor, cx| {
3690 editor
3691 .buffer()
3692 .read(cx)
3693 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3694 })?;
3695 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3696 if excerpted_buffer == *buffer {
3697 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3698 let excerpt_range = excerpt_range.to_offset(buffer);
3699 buffer
3700 .edited_ranges_for_transaction::<usize>(transaction)
3701 .all(|range| {
3702 excerpt_range.start <= range.start
3703 && excerpt_range.end >= range.end
3704 })
3705 })?;
3706
3707 if all_edits_within_excerpt {
3708 return Ok(());
3709 }
3710 }
3711 }
3712 }
3713 } else {
3714 return Ok(());
3715 }
3716
3717 let mut ranges_to_highlight = Vec::new();
3718 let excerpt_buffer = cx.new_model(|cx| {
3719 let mut multibuffer =
3720 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3721 for (buffer_handle, transaction) in &entries {
3722 let buffer = buffer_handle.read(cx);
3723 ranges_to_highlight.extend(
3724 multibuffer.push_excerpts_with_context_lines(
3725 buffer_handle.clone(),
3726 buffer
3727 .edited_ranges_for_transaction::<usize>(transaction)
3728 .collect(),
3729 1,
3730 cx,
3731 ),
3732 );
3733 }
3734 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3735 multibuffer
3736 })?;
3737
3738 workspace.update(&mut cx, |workspace, cx| {
3739 let project = workspace.project().clone();
3740 let editor =
3741 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3742 workspace.add_item_to_active_pane(Box::new(editor.clone()), cx);
3743 editor.update(cx, |editor, cx| {
3744 editor.highlight_background::<Self>(
3745 ranges_to_highlight,
3746 |theme| theme.editor_highlighted_line_background,
3747 cx,
3748 );
3749 });
3750 })?;
3751
3752 Ok(())
3753 }
3754
3755 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3756 let project = self.project.clone()?;
3757 let buffer = self.buffer.read(cx);
3758 let newest_selection = self.selections.newest_anchor().clone();
3759 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3760 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3761 if start_buffer != end_buffer {
3762 return None;
3763 }
3764
3765 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3766 cx.background_executor()
3767 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3768 .await;
3769
3770 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3771 project.code_actions(&start_buffer, start..end, cx)
3772 }) {
3773 code_actions.await.log_err()
3774 } else {
3775 None
3776 };
3777
3778 this.update(&mut cx, |this, cx| {
3779 this.available_code_actions = actions.and_then(|actions| {
3780 if actions.is_empty() {
3781 None
3782 } else {
3783 Some((start_buffer, actions.into()))
3784 }
3785 });
3786 cx.notify();
3787 })
3788 .log_err();
3789 }));
3790 None
3791 }
3792
3793 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3794 if self.pending_rename.is_some() {
3795 return None;
3796 }
3797
3798 let project = self.project.clone()?;
3799 let buffer = self.buffer.read(cx);
3800 let newest_selection = self.selections.newest_anchor().clone();
3801 let cursor_position = newest_selection.head();
3802 let (cursor_buffer, cursor_buffer_position) =
3803 buffer.text_anchor_for_position(cursor_position, cx)?;
3804 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3805 if cursor_buffer != tail_buffer {
3806 return None;
3807 }
3808
3809 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3810 cx.background_executor()
3811 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3812 .await;
3813
3814 let highlights = if let Some(highlights) = project
3815 .update(&mut cx, |project, cx| {
3816 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3817 })
3818 .log_err()
3819 {
3820 highlights.await.log_err()
3821 } else {
3822 None
3823 };
3824
3825 if let Some(highlights) = highlights {
3826 this.update(&mut cx, |this, cx| {
3827 if this.pending_rename.is_some() {
3828 return;
3829 }
3830
3831 let buffer_id = cursor_position.buffer_id;
3832 let buffer = this.buffer.read(cx);
3833 if !buffer
3834 .text_anchor_for_position(cursor_position, cx)
3835 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3836 {
3837 return;
3838 }
3839
3840 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3841 let mut write_ranges = Vec::new();
3842 let mut read_ranges = Vec::new();
3843 for highlight in highlights {
3844 for (excerpt_id, excerpt_range) in
3845 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3846 {
3847 let start = highlight
3848 .range
3849 .start
3850 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3851 let end = highlight
3852 .range
3853 .end
3854 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3855 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3856 continue;
3857 }
3858
3859 let range = Anchor {
3860 buffer_id,
3861 excerpt_id: excerpt_id,
3862 text_anchor: start,
3863 }..Anchor {
3864 buffer_id,
3865 excerpt_id,
3866 text_anchor: end,
3867 };
3868 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3869 write_ranges.push(range);
3870 } else {
3871 read_ranges.push(range);
3872 }
3873 }
3874 }
3875
3876 this.highlight_background::<DocumentHighlightRead>(
3877 read_ranges,
3878 |theme| theme.editor_document_highlight_read_background,
3879 cx,
3880 );
3881 this.highlight_background::<DocumentHighlightWrite>(
3882 write_ranges,
3883 |theme| theme.editor_document_highlight_write_background,
3884 cx,
3885 );
3886 cx.notify();
3887 })
3888 .log_err();
3889 }
3890 }));
3891 None
3892 }
3893
3894 fn refresh_copilot_suggestions(
3895 &mut self,
3896 debounce: bool,
3897 cx: &mut ViewContext<Self>,
3898 ) -> Option<()> {
3899 let copilot = Copilot::global(cx)?;
3900 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3901 self.clear_copilot_suggestions(cx);
3902 return None;
3903 }
3904 self.update_visible_copilot_suggestion(cx);
3905
3906 let snapshot = self.buffer.read(cx).snapshot(cx);
3907 let cursor = self.selections.newest_anchor().head();
3908 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3909 self.clear_copilot_suggestions(cx);
3910 return None;
3911 }
3912
3913 let (buffer, buffer_position) =
3914 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3915 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3916 if debounce {
3917 cx.background_executor()
3918 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3919 .await;
3920 }
3921
3922 let completions = copilot
3923 .update(&mut cx, |copilot, cx| {
3924 copilot.completions(&buffer, buffer_position, cx)
3925 })
3926 .log_err()
3927 .unwrap_or(Task::ready(Ok(Vec::new())))
3928 .await
3929 .log_err()
3930 .into_iter()
3931 .flatten()
3932 .collect_vec();
3933
3934 this.update(&mut cx, |this, cx| {
3935 if !completions.is_empty() {
3936 this.copilot_state.cycled = false;
3937 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3938 this.copilot_state.completions.clear();
3939 this.copilot_state.active_completion_index = 0;
3940 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3941 for completion in completions {
3942 this.copilot_state.push_completion(completion);
3943 }
3944 this.update_visible_copilot_suggestion(cx);
3945 }
3946 })
3947 .log_err()?;
3948 Some(())
3949 });
3950
3951 Some(())
3952 }
3953
3954 fn cycle_copilot_suggestions(
3955 &mut self,
3956 direction: Direction,
3957 cx: &mut ViewContext<Self>,
3958 ) -> Option<()> {
3959 let copilot = Copilot::global(cx)?;
3960 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3961 return None;
3962 }
3963
3964 if self.copilot_state.cycled {
3965 self.copilot_state.cycle_completions(direction);
3966 self.update_visible_copilot_suggestion(cx);
3967 } else {
3968 let cursor = self.selections.newest_anchor().head();
3969 let (buffer, buffer_position) =
3970 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3971 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3972 let completions = copilot
3973 .update(&mut cx, |copilot, cx| {
3974 copilot.completions_cycling(&buffer, buffer_position, cx)
3975 })
3976 .log_err()?
3977 .await;
3978
3979 this.update(&mut cx, |this, cx| {
3980 this.copilot_state.cycled = true;
3981 for completion in completions.log_err().into_iter().flatten() {
3982 this.copilot_state.push_completion(completion);
3983 }
3984 this.copilot_state.cycle_completions(direction);
3985 this.update_visible_copilot_suggestion(cx);
3986 })
3987 .log_err()?;
3988
3989 Some(())
3990 });
3991 }
3992
3993 Some(())
3994 }
3995
3996 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3997 if !self.has_active_copilot_suggestion(cx) {
3998 self.refresh_copilot_suggestions(false, cx);
3999 return;
4000 }
4001
4002 self.update_visible_copilot_suggestion(cx);
4003 }
4004
4005 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4006 self.show_cursor_names(cx);
4007 }
4008
4009 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4010 self.show_cursor_names = true;
4011 cx.notify();
4012 cx.spawn(|this, mut cx| async move {
4013 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4014 this.update(&mut cx, |this, cx| {
4015 this.show_cursor_names = false;
4016 cx.notify()
4017 })
4018 .ok()
4019 })
4020 .detach();
4021 }
4022
4023 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
4024 if self.has_active_copilot_suggestion(cx) {
4025 self.cycle_copilot_suggestions(Direction::Next, cx);
4026 } else {
4027 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
4028 if is_copilot_disabled {
4029 cx.propagate();
4030 }
4031 }
4032 }
4033
4034 fn previous_copilot_suggestion(
4035 &mut self,
4036 _: &copilot::PreviousSuggestion,
4037 cx: &mut ViewContext<Self>,
4038 ) {
4039 if self.has_active_copilot_suggestion(cx) {
4040 self.cycle_copilot_suggestions(Direction::Prev, cx);
4041 } else {
4042 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
4043 if is_copilot_disabled {
4044 cx.propagate();
4045 }
4046 }
4047 }
4048
4049 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4050 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4051 if let Some((copilot, completion)) =
4052 Copilot::global(cx).zip(self.copilot_state.active_completion())
4053 {
4054 copilot
4055 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
4056 .detach_and_log_err(cx);
4057
4058 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
4059 }
4060 cx.emit(EditorEvent::InputHandled {
4061 utf16_range_to_replace: None,
4062 text: suggestion.text.to_string().into(),
4063 });
4064 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
4065 cx.notify();
4066 true
4067 } else {
4068 false
4069 }
4070 }
4071
4072 fn accept_partial_copilot_suggestion(
4073 &mut self,
4074 _: &AcceptPartialCopilotSuggestion,
4075 cx: &mut ViewContext<Self>,
4076 ) {
4077 if self.selections.count() == 1 && self.has_active_copilot_suggestion(cx) {
4078 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4079 let mut partial_suggestion = suggestion
4080 .text
4081 .chars()
4082 .by_ref()
4083 .take_while(|c| c.is_alphabetic())
4084 .collect::<String>();
4085 if partial_suggestion.is_empty() {
4086 partial_suggestion = suggestion
4087 .text
4088 .chars()
4089 .by_ref()
4090 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4091 .collect::<String>();
4092 }
4093
4094 cx.emit(EditorEvent::InputHandled {
4095 utf16_range_to_replace: None,
4096 text: partial_suggestion.clone().into(),
4097 });
4098 self.insert_with_autoindent_mode(&partial_suggestion, None, cx);
4099 self.refresh_copilot_suggestions(true, cx);
4100 cx.notify();
4101 }
4102 }
4103 }
4104
4105 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4106 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
4107 if let Some(copilot) = Copilot::global(cx) {
4108 copilot
4109 .update(cx, |copilot, cx| {
4110 copilot.discard_completions(&self.copilot_state.completions, cx)
4111 })
4112 .detach_and_log_err(cx);
4113
4114 self.report_copilot_event(None, false, cx)
4115 }
4116
4117 self.display_map.update(cx, |map, cx| {
4118 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
4119 });
4120 cx.notify();
4121 true
4122 } else {
4123 false
4124 }
4125 }
4126
4127 fn is_copilot_enabled_at(
4128 &self,
4129 location: Anchor,
4130 snapshot: &MultiBufferSnapshot,
4131 cx: &mut ViewContext<Self>,
4132 ) -> bool {
4133 let file = snapshot.file_at(location);
4134 let language = snapshot.language_at(location);
4135 let settings = all_language_settings(file, cx);
4136 self.show_copilot_suggestions
4137 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
4138 }
4139
4140 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
4141 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
4142 let buffer = self.buffer.read(cx).read(cx);
4143 suggestion.position.is_valid(&buffer)
4144 } else {
4145 false
4146 }
4147 }
4148
4149 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4150 let suggestion = self.copilot_state.suggestion.take()?;
4151 self.display_map.update(cx, |map, cx| {
4152 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
4153 });
4154 let buffer = self.buffer.read(cx).read(cx);
4155
4156 if suggestion.position.is_valid(&buffer) {
4157 Some(suggestion)
4158 } else {
4159 None
4160 }
4161 }
4162
4163 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
4164 let snapshot = self.buffer.read(cx).snapshot(cx);
4165 let selection = self.selections.newest_anchor();
4166 let cursor = selection.head();
4167
4168 if self.context_menu.read().is_some()
4169 || !self.completion_tasks.is_empty()
4170 || selection.start != selection.end
4171 {
4172 self.discard_copilot_suggestion(cx);
4173 } else if let Some(text) = self
4174 .copilot_state
4175 .text_for_active_completion(cursor, &snapshot)
4176 {
4177 let text = Rope::from(text);
4178 let mut to_remove = Vec::new();
4179 if let Some(suggestion) = self.copilot_state.suggestion.take() {
4180 to_remove.push(suggestion.id);
4181 }
4182
4183 let suggestion_inlay =
4184 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4185 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
4186 self.display_map.update(cx, move |map, cx| {
4187 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
4188 });
4189 cx.notify();
4190 } else {
4191 self.discard_copilot_suggestion(cx);
4192 }
4193 }
4194
4195 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
4196 if let Some(old_suggestion) = self.copilot_state.suggestion.take() {
4197 self.splice_inlays(vec![old_suggestion.id], Vec::new(), cx);
4198 }
4199 self.copilot_state = CopilotState::default();
4200 self.discard_copilot_suggestion(cx);
4201 }
4202
4203 pub fn render_code_actions_indicator(
4204 &self,
4205 _style: &EditorStyle,
4206 is_active: bool,
4207 cx: &mut ViewContext<Self>,
4208 ) -> Option<IconButton> {
4209 if self.available_code_actions.is_some() {
4210 Some(
4211 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4212 .icon_size(IconSize::XSmall)
4213 .size(ui::ButtonSize::None)
4214 .icon_color(Color::Muted)
4215 .selected(is_active)
4216 .on_click(cx.listener(|editor, _e, cx| {
4217 editor.toggle_code_actions(
4218 &ToggleCodeActions {
4219 deployed_from_indicator: true,
4220 },
4221 cx,
4222 );
4223 })),
4224 )
4225 } else {
4226 None
4227 }
4228 }
4229
4230 pub fn render_fold_indicators(
4231 &mut self,
4232 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4233 _style: &EditorStyle,
4234 gutter_hovered: bool,
4235 _line_height: Pixels,
4236 _gutter_margin: Pixels,
4237 cx: &mut ViewContext<Self>,
4238 ) -> Vec<Option<AnyElement>> {
4239 fold_data
4240 .iter()
4241 .enumerate()
4242 .map(|(ix, fold_data)| {
4243 fold_data
4244 .map(|(fold_status, buffer_row, active)| {
4245 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4246 IconButton::new(ix, ui::IconName::ChevronDown)
4247 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4248 FoldStatus::Folded => {
4249 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4250 }
4251 FoldStatus::Foldable => {
4252 this.fold_at(&FoldAt { buffer_row }, cx);
4253 }
4254 }))
4255 .icon_color(ui::Color::Muted)
4256 .icon_size(ui::IconSize::Small)
4257 .selected(fold_status == FoldStatus::Folded)
4258 .selected_icon(ui::IconName::ChevronRight)
4259 .size(ui::ButtonSize::None)
4260 .into_any_element()
4261 })
4262 })
4263 .flatten()
4264 })
4265 .collect()
4266 }
4267
4268 pub fn context_menu_visible(&self) -> bool {
4269 self.context_menu
4270 .read()
4271 .as_ref()
4272 .map_or(false, |menu| menu.visible())
4273 }
4274
4275 pub fn render_context_menu(
4276 &self,
4277 cursor_position: DisplayPoint,
4278 style: &EditorStyle,
4279 max_height: Pixels,
4280 cx: &mut ViewContext<Editor>,
4281 ) -> Option<(DisplayPoint, AnyElement)> {
4282 self.context_menu.read().as_ref().map(|menu| {
4283 menu.render(
4284 cursor_position,
4285 style,
4286 max_height,
4287 self.workspace.as_ref().map(|(w, _)| w.clone()),
4288 cx,
4289 )
4290 })
4291 }
4292
4293 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4294 cx.notify();
4295 self.completion_tasks.clear();
4296 let context_menu = self.context_menu.write().take();
4297 if context_menu.is_some() {
4298 self.update_visible_copilot_suggestion(cx);
4299 }
4300 context_menu
4301 }
4302
4303 pub fn insert_snippet(
4304 &mut self,
4305 insertion_ranges: &[Range<usize>],
4306 snippet: Snippet,
4307 cx: &mut ViewContext<Self>,
4308 ) -> Result<()> {
4309 let tabstops = self.buffer.update(cx, |buffer, cx| {
4310 let snippet_text: Arc<str> = snippet.text.clone().into();
4311 buffer.edit(
4312 insertion_ranges
4313 .iter()
4314 .cloned()
4315 .map(|range| (range, snippet_text.clone())),
4316 Some(AutoindentMode::EachLine),
4317 cx,
4318 );
4319
4320 let snapshot = &*buffer.read(cx);
4321 let snippet = &snippet;
4322 snippet
4323 .tabstops
4324 .iter()
4325 .map(|tabstop| {
4326 let mut tabstop_ranges = tabstop
4327 .iter()
4328 .flat_map(|tabstop_range| {
4329 let mut delta = 0_isize;
4330 insertion_ranges.iter().map(move |insertion_range| {
4331 let insertion_start = insertion_range.start as isize + delta;
4332 delta +=
4333 snippet.text.len() as isize - insertion_range.len() as isize;
4334
4335 let start = snapshot.anchor_before(
4336 (insertion_start + tabstop_range.start) as usize,
4337 );
4338 let end = snapshot
4339 .anchor_after((insertion_start + tabstop_range.end) as usize);
4340 start..end
4341 })
4342 })
4343 .collect::<Vec<_>>();
4344 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4345 tabstop_ranges
4346 })
4347 .collect::<Vec<_>>()
4348 });
4349
4350 if let Some(tabstop) = tabstops.first() {
4351 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4352 s.select_ranges(tabstop.iter().cloned());
4353 });
4354 self.snippet_stack.push(SnippetState {
4355 active_index: 0,
4356 ranges: tabstops,
4357 });
4358
4359 // Check whether the just-entered snippet ends with an auto-closable bracket.
4360 if self.autoclose_regions.is_empty() {
4361 let snapshot = self.buffer.read(cx).snapshot(cx);
4362 for selection in &mut self.selections.all::<Point>(cx) {
4363 let selection_head = selection.head();
4364 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4365 continue;
4366 };
4367
4368 let mut bracket_pair = None;
4369 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4370 let prev_chars = snapshot
4371 .reversed_chars_at(selection_head)
4372 .collect::<String>();
4373 for (pair, enabled) in scope.brackets() {
4374 if enabled
4375 && pair.close
4376 && prev_chars.starts_with(pair.start.as_str())
4377 && next_chars.starts_with(pair.end.as_str())
4378 {
4379 bracket_pair = Some(pair.clone());
4380 break;
4381 }
4382 }
4383 if let Some(pair) = bracket_pair {
4384 let start = snapshot.anchor_after(selection_head);
4385 let end = snapshot.anchor_after(selection_head);
4386 self.autoclose_regions.push(AutocloseRegion {
4387 selection_id: selection.id,
4388 range: start..end,
4389 pair,
4390 });
4391 }
4392 }
4393 }
4394 }
4395 Ok(())
4396 }
4397
4398 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4399 self.move_to_snippet_tabstop(Bias::Right, cx)
4400 }
4401
4402 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4403 self.move_to_snippet_tabstop(Bias::Left, cx)
4404 }
4405
4406 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4407 if let Some(mut snippet) = self.snippet_stack.pop() {
4408 match bias {
4409 Bias::Left => {
4410 if snippet.active_index > 0 {
4411 snippet.active_index -= 1;
4412 } else {
4413 self.snippet_stack.push(snippet);
4414 return false;
4415 }
4416 }
4417 Bias::Right => {
4418 if snippet.active_index + 1 < snippet.ranges.len() {
4419 snippet.active_index += 1;
4420 } else {
4421 self.snippet_stack.push(snippet);
4422 return false;
4423 }
4424 }
4425 }
4426 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4427 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4428 s.select_anchor_ranges(current_ranges.iter().cloned())
4429 });
4430 // If snippet state is not at the last tabstop, push it back on the stack
4431 if snippet.active_index + 1 < snippet.ranges.len() {
4432 self.snippet_stack.push(snippet);
4433 }
4434 return true;
4435 }
4436 }
4437
4438 false
4439 }
4440
4441 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4442 self.transact(cx, |this, cx| {
4443 this.select_all(&SelectAll, cx);
4444 this.insert("", cx);
4445 });
4446 }
4447
4448 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4449 self.transact(cx, |this, cx| {
4450 this.select_autoclose_pair(cx);
4451 let mut selections = this.selections.all::<Point>(cx);
4452 if !this.selections.line_mode {
4453 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4454 for selection in &mut selections {
4455 if selection.is_empty() {
4456 let old_head = selection.head();
4457 let mut new_head =
4458 movement::left(&display_map, old_head.to_display_point(&display_map))
4459 .to_point(&display_map);
4460 if let Some((buffer, line_buffer_range)) = display_map
4461 .buffer_snapshot
4462 .buffer_line_for_row(old_head.row)
4463 {
4464 let indent_size =
4465 buffer.indent_size_for_line(line_buffer_range.start.row);
4466 let indent_len = match indent_size.kind {
4467 IndentKind::Space => {
4468 buffer.settings_at(line_buffer_range.start, cx).tab_size
4469 }
4470 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4471 };
4472 if old_head.column <= indent_size.len && old_head.column > 0 {
4473 let indent_len = indent_len.get();
4474 new_head = cmp::min(
4475 new_head,
4476 Point::new(
4477 old_head.row,
4478 ((old_head.column - 1) / indent_len) * indent_len,
4479 ),
4480 );
4481 }
4482 }
4483
4484 selection.set_head(new_head, SelectionGoal::None);
4485 }
4486 }
4487 }
4488
4489 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4490 this.insert("", cx);
4491 this.refresh_copilot_suggestions(true, cx);
4492 });
4493 }
4494
4495 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4496 self.transact(cx, |this, cx| {
4497 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4498 let line_mode = s.line_mode;
4499 s.move_with(|map, selection| {
4500 if selection.is_empty() && !line_mode {
4501 let cursor = movement::right(map, selection.head());
4502 selection.end = cursor;
4503 selection.reversed = true;
4504 selection.goal = SelectionGoal::None;
4505 }
4506 })
4507 });
4508 this.insert("", cx);
4509 this.refresh_copilot_suggestions(true, cx);
4510 });
4511 }
4512
4513 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4514 if self.move_to_prev_snippet_tabstop(cx) {
4515 return;
4516 }
4517
4518 self.outdent(&Outdent, cx);
4519 }
4520
4521 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4522 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4523 return;
4524 }
4525
4526 let mut selections = self.selections.all_adjusted(cx);
4527 let buffer = self.buffer.read(cx);
4528 let snapshot = buffer.snapshot(cx);
4529 let rows_iter = selections.iter().map(|s| s.head().row);
4530 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4531
4532 let mut edits = Vec::new();
4533 let mut prev_edited_row = 0;
4534 let mut row_delta = 0;
4535 for selection in &mut selections {
4536 if selection.start.row != prev_edited_row {
4537 row_delta = 0;
4538 }
4539 prev_edited_row = selection.end.row;
4540
4541 // If the selection is non-empty, then increase the indentation of the selected lines.
4542 if !selection.is_empty() {
4543 row_delta =
4544 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4545 continue;
4546 }
4547
4548 // If the selection is empty and the cursor is in the leading whitespace before the
4549 // suggested indentation, then auto-indent the line.
4550 let cursor = selection.head();
4551 let current_indent = snapshot.indent_size_for_line(cursor.row);
4552 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4553 if cursor.column < suggested_indent.len
4554 && cursor.column <= current_indent.len
4555 && current_indent.len <= suggested_indent.len
4556 {
4557 selection.start = Point::new(cursor.row, suggested_indent.len);
4558 selection.end = selection.start;
4559 if row_delta == 0 {
4560 edits.extend(Buffer::edit_for_indent_size_adjustment(
4561 cursor.row,
4562 current_indent,
4563 suggested_indent,
4564 ));
4565 row_delta = suggested_indent.len - current_indent.len;
4566 }
4567 continue;
4568 }
4569 }
4570
4571 // Accept copilot suggestion if there is only one selection and the cursor is not
4572 // in the leading whitespace.
4573 if self.selections.count() == 1
4574 && cursor.column >= current_indent.len
4575 && self.has_active_copilot_suggestion(cx)
4576 {
4577 self.accept_copilot_suggestion(cx);
4578 return;
4579 }
4580
4581 // Otherwise, insert a hard or soft tab.
4582 let settings = buffer.settings_at(cursor, cx);
4583 let tab_size = if settings.hard_tabs {
4584 IndentSize::tab()
4585 } else {
4586 let tab_size = settings.tab_size.get();
4587 let char_column = snapshot
4588 .text_for_range(Point::new(cursor.row, 0)..cursor)
4589 .flat_map(str::chars)
4590 .count()
4591 + row_delta as usize;
4592 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4593 IndentSize::spaces(chars_to_next_tab_stop)
4594 };
4595 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4596 selection.end = selection.start;
4597 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4598 row_delta += tab_size.len;
4599 }
4600
4601 self.transact(cx, |this, cx| {
4602 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4603 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4604 this.refresh_copilot_suggestions(true, cx);
4605 });
4606 }
4607
4608 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4609 if self.read_only(cx) {
4610 return;
4611 }
4612 let mut selections = self.selections.all::<Point>(cx);
4613 let mut prev_edited_row = 0;
4614 let mut row_delta = 0;
4615 let mut edits = Vec::new();
4616 let buffer = self.buffer.read(cx);
4617 let snapshot = buffer.snapshot(cx);
4618 for selection in &mut selections {
4619 if selection.start.row != prev_edited_row {
4620 row_delta = 0;
4621 }
4622 prev_edited_row = selection.end.row;
4623
4624 row_delta =
4625 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4626 }
4627
4628 self.transact(cx, |this, cx| {
4629 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4630 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4631 });
4632 }
4633
4634 fn indent_selection(
4635 buffer: &MultiBuffer,
4636 snapshot: &MultiBufferSnapshot,
4637 selection: &mut Selection<Point>,
4638 edits: &mut Vec<(Range<Point>, String)>,
4639 delta_for_start_row: u32,
4640 cx: &AppContext,
4641 ) -> u32 {
4642 let settings = buffer.settings_at(selection.start, cx);
4643 let tab_size = settings.tab_size.get();
4644 let indent_kind = if settings.hard_tabs {
4645 IndentKind::Tab
4646 } else {
4647 IndentKind::Space
4648 };
4649 let mut start_row = selection.start.row;
4650 let mut end_row = selection.end.row + 1;
4651
4652 // If a selection ends at the beginning of a line, don't indent
4653 // that last line.
4654 if selection.end.column == 0 && selection.end.row > selection.start.row {
4655 end_row -= 1;
4656 }
4657
4658 // Avoid re-indenting a row that has already been indented by a
4659 // previous selection, but still update this selection's column
4660 // to reflect that indentation.
4661 if delta_for_start_row > 0 {
4662 start_row += 1;
4663 selection.start.column += delta_for_start_row;
4664 if selection.end.row == selection.start.row {
4665 selection.end.column += delta_for_start_row;
4666 }
4667 }
4668
4669 let mut delta_for_end_row = 0;
4670 for row in start_row..end_row {
4671 let current_indent = snapshot.indent_size_for_line(row);
4672 let indent_delta = match (current_indent.kind, indent_kind) {
4673 (IndentKind::Space, IndentKind::Space) => {
4674 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4675 IndentSize::spaces(columns_to_next_tab_stop)
4676 }
4677 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4678 (_, IndentKind::Tab) => IndentSize::tab(),
4679 };
4680
4681 let row_start = Point::new(row, 0);
4682 edits.push((
4683 row_start..row_start,
4684 indent_delta.chars().collect::<String>(),
4685 ));
4686
4687 // Update this selection's endpoints to reflect the indentation.
4688 if row == selection.start.row {
4689 selection.start.column += indent_delta.len;
4690 }
4691 if row == selection.end.row {
4692 selection.end.column += indent_delta.len;
4693 delta_for_end_row = indent_delta.len;
4694 }
4695 }
4696
4697 if selection.start.row == selection.end.row {
4698 delta_for_start_row + delta_for_end_row
4699 } else {
4700 delta_for_end_row
4701 }
4702 }
4703
4704 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4705 if self.read_only(cx) {
4706 return;
4707 }
4708 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4709 let selections = self.selections.all::<Point>(cx);
4710 let mut deletion_ranges = Vec::new();
4711 let mut last_outdent = None;
4712 {
4713 let buffer = self.buffer.read(cx);
4714 let snapshot = buffer.snapshot(cx);
4715 for selection in &selections {
4716 let settings = buffer.settings_at(selection.start, cx);
4717 let tab_size = settings.tab_size.get();
4718 let mut rows = selection.spanned_rows(false, &display_map);
4719
4720 // Avoid re-outdenting a row that has already been outdented by a
4721 // previous selection.
4722 if let Some(last_row) = last_outdent {
4723 if last_row == rows.start {
4724 rows.start += 1;
4725 }
4726 }
4727
4728 for row in rows {
4729 let indent_size = snapshot.indent_size_for_line(row);
4730 if indent_size.len > 0 {
4731 let deletion_len = match indent_size.kind {
4732 IndentKind::Space => {
4733 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4734 if columns_to_prev_tab_stop == 0 {
4735 tab_size
4736 } else {
4737 columns_to_prev_tab_stop
4738 }
4739 }
4740 IndentKind::Tab => 1,
4741 };
4742 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4743 last_outdent = Some(row);
4744 }
4745 }
4746 }
4747 }
4748
4749 self.transact(cx, |this, cx| {
4750 this.buffer.update(cx, |buffer, cx| {
4751 let empty_str: Arc<str> = "".into();
4752 buffer.edit(
4753 deletion_ranges
4754 .into_iter()
4755 .map(|range| (range, empty_str.clone())),
4756 None,
4757 cx,
4758 );
4759 });
4760 let selections = this.selections.all::<usize>(cx);
4761 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4762 });
4763 }
4764
4765 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4766 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4767 let selections = self.selections.all::<Point>(cx);
4768
4769 let mut new_cursors = Vec::new();
4770 let mut edit_ranges = Vec::new();
4771 let mut selections = selections.iter().peekable();
4772 while let Some(selection) = selections.next() {
4773 let mut rows = selection.spanned_rows(false, &display_map);
4774 let goal_display_column = selection.head().to_display_point(&display_map).column();
4775
4776 // Accumulate contiguous regions of rows that we want to delete.
4777 while let Some(next_selection) = selections.peek() {
4778 let next_rows = next_selection.spanned_rows(false, &display_map);
4779 if next_rows.start <= rows.end {
4780 rows.end = next_rows.end;
4781 selections.next().unwrap();
4782 } else {
4783 break;
4784 }
4785 }
4786
4787 let buffer = &display_map.buffer_snapshot;
4788 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4789 let edit_end;
4790 let cursor_buffer_row;
4791 if buffer.max_point().row >= rows.end {
4792 // If there's a line after the range, delete the \n from the end of the row range
4793 // and position the cursor on the next line.
4794 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4795 cursor_buffer_row = rows.end;
4796 } else {
4797 // If there isn't a line after the range, delete the \n from the line before the
4798 // start of the row range and position the cursor there.
4799 edit_start = edit_start.saturating_sub(1);
4800 edit_end = buffer.len();
4801 cursor_buffer_row = rows.start.saturating_sub(1);
4802 }
4803
4804 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4805 *cursor.column_mut() =
4806 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4807
4808 new_cursors.push((
4809 selection.id,
4810 buffer.anchor_after(cursor.to_point(&display_map)),
4811 ));
4812 edit_ranges.push(edit_start..edit_end);
4813 }
4814
4815 self.transact(cx, |this, cx| {
4816 let buffer = this.buffer.update(cx, |buffer, cx| {
4817 let empty_str: Arc<str> = "".into();
4818 buffer.edit(
4819 edit_ranges
4820 .into_iter()
4821 .map(|range| (range, empty_str.clone())),
4822 None,
4823 cx,
4824 );
4825 buffer.snapshot(cx)
4826 });
4827 let new_selections = new_cursors
4828 .into_iter()
4829 .map(|(id, cursor)| {
4830 let cursor = cursor.to_point(&buffer);
4831 Selection {
4832 id,
4833 start: cursor,
4834 end: cursor,
4835 reversed: false,
4836 goal: SelectionGoal::None,
4837 }
4838 })
4839 .collect();
4840
4841 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4842 s.select(new_selections);
4843 });
4844 });
4845 }
4846
4847 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4848 if self.read_only(cx) {
4849 return;
4850 }
4851 let mut row_ranges = Vec::<Range<u32>>::new();
4852 for selection in self.selections.all::<Point>(cx) {
4853 let start = selection.start.row;
4854 let end = if selection.start.row == selection.end.row {
4855 selection.start.row + 1
4856 } else {
4857 selection.end.row
4858 };
4859
4860 if let Some(last_row_range) = row_ranges.last_mut() {
4861 if start <= last_row_range.end {
4862 last_row_range.end = end;
4863 continue;
4864 }
4865 }
4866 row_ranges.push(start..end);
4867 }
4868
4869 let snapshot = self.buffer.read(cx).snapshot(cx);
4870 let mut cursor_positions = Vec::new();
4871 for row_range in &row_ranges {
4872 let anchor = snapshot.anchor_before(Point::new(
4873 row_range.end - 1,
4874 snapshot.line_len(row_range.end - 1),
4875 ));
4876 cursor_positions.push(anchor..anchor);
4877 }
4878
4879 self.transact(cx, |this, cx| {
4880 for row_range in row_ranges.into_iter().rev() {
4881 for row in row_range.rev() {
4882 let end_of_line = Point::new(row, snapshot.line_len(row));
4883 let indent = snapshot.indent_size_for_line(row + 1);
4884 let start_of_next_line = Point::new(row + 1, indent.len);
4885
4886 let replace = if snapshot.line_len(row + 1) > indent.len {
4887 " "
4888 } else {
4889 ""
4890 };
4891
4892 this.buffer.update(cx, |buffer, cx| {
4893 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4894 });
4895 }
4896 }
4897
4898 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4899 s.select_anchor_ranges(cursor_positions)
4900 });
4901 });
4902 }
4903
4904 pub fn sort_lines_case_sensitive(
4905 &mut self,
4906 _: &SortLinesCaseSensitive,
4907 cx: &mut ViewContext<Self>,
4908 ) {
4909 self.manipulate_lines(cx, |lines| lines.sort())
4910 }
4911
4912 pub fn sort_lines_case_insensitive(
4913 &mut self,
4914 _: &SortLinesCaseInsensitive,
4915 cx: &mut ViewContext<Self>,
4916 ) {
4917 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4918 }
4919
4920 pub fn unique_lines_case_insensitive(
4921 &mut self,
4922 _: &UniqueLinesCaseInsensitive,
4923 cx: &mut ViewContext<Self>,
4924 ) {
4925 self.manipulate_lines(cx, |lines| {
4926 let mut seen = HashSet::default();
4927 lines.retain(|line| seen.insert(line.to_lowercase()));
4928 })
4929 }
4930
4931 pub fn unique_lines_case_sensitive(
4932 &mut self,
4933 _: &UniqueLinesCaseSensitive,
4934 cx: &mut ViewContext<Self>,
4935 ) {
4936 self.manipulate_lines(cx, |lines| {
4937 let mut seen = HashSet::default();
4938 lines.retain(|line| seen.insert(*line));
4939 })
4940 }
4941
4942 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
4943 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
4944 if !revert_changes.is_empty() {
4945 self.transact(cx, |editor, cx| {
4946 editor.buffer().update(cx, |multi_buffer, cx| {
4947 for (buffer_id, buffer_revert_ranges) in revert_changes {
4948 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
4949 buffer.update(cx, |buffer, cx| {
4950 buffer.edit(buffer_revert_ranges, None, cx);
4951 });
4952 }
4953 }
4954 });
4955 editor.change_selections(None, cx, |selections| selections.refresh());
4956 });
4957 }
4958 }
4959
4960 fn gather_revert_changes(
4961 &mut self,
4962 selections: &[Selection<Anchor>],
4963 cx: &mut ViewContext<'_, Editor>,
4964 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>> {
4965 let mut revert_changes = HashMap::default();
4966 self.buffer.update(cx, |multi_buffer, cx| {
4967 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4968 let selected_multi_buffer_rows = selections.iter().map(|selection| {
4969 let head = selection.head();
4970 let tail = selection.tail();
4971 let start = tail.to_point(&multi_buffer_snapshot).row;
4972 let end = head.to_point(&multi_buffer_snapshot).row;
4973 if start > end {
4974 end..start
4975 } else {
4976 start..end
4977 }
4978 });
4979
4980 let mut processed_buffer_rows =
4981 HashMap::<BufferId, HashSet<Range<text::Anchor>>>::default();
4982 for selected_multi_buffer_rows in selected_multi_buffer_rows {
4983 let query_rows =
4984 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
4985 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
4986 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
4987 // when the caret is just above or just below the deleted hunk.
4988 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
4989 let related_to_selection = if allow_adjacent {
4990 hunk.associated_range.overlaps(&query_rows)
4991 || hunk.associated_range.start == query_rows.end
4992 || hunk.associated_range.end == query_rows.start
4993 } else {
4994 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
4995 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
4996 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
4997 || selected_multi_buffer_rows.end == hunk.associated_range.start
4998 };
4999 if related_to_selection {
5000 if !processed_buffer_rows
5001 .entry(hunk.buffer_id)
5002 .or_default()
5003 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
5004 {
5005 continue;
5006 }
5007 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5008 }
5009 }
5010 }
5011 });
5012 revert_changes
5013 }
5014
5015 fn prepare_revert_change(
5016 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>>,
5017 multi_buffer: &MultiBuffer,
5018 hunk: &DiffHunk<u32>,
5019 cx: &mut AppContext,
5020 ) -> Option<()> {
5021 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5022 let buffer = buffer.read(cx);
5023 let original_text = buffer.diff_base()?.get(hunk.diff_base_byte_range.clone())?;
5024 let buffer_snapshot = buffer.snapshot();
5025 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5026 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5027 probe
5028 .0
5029 .start
5030 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5031 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5032 .then(probe.1.as_ref().cmp(original_text))
5033 }) {
5034 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), Arc::from(original_text)));
5035 Some(())
5036 } else {
5037 None
5038 }
5039 }
5040
5041 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5042 self.manipulate_lines(cx, |lines| lines.reverse())
5043 }
5044
5045 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5046 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5047 }
5048
5049 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5050 where
5051 Fn: FnMut(&mut Vec<&str>),
5052 {
5053 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5054 let buffer = self.buffer.read(cx).snapshot(cx);
5055
5056 let mut edits = Vec::new();
5057
5058 let selections = self.selections.all::<Point>(cx);
5059 let mut selections = selections.iter().peekable();
5060 let mut contiguous_row_selections = Vec::new();
5061 let mut new_selections = Vec::new();
5062 let mut added_lines = 0;
5063 let mut removed_lines = 0;
5064
5065 while let Some(selection) = selections.next() {
5066 let (start_row, end_row) = consume_contiguous_rows(
5067 &mut contiguous_row_selections,
5068 selection,
5069 &display_map,
5070 &mut selections,
5071 );
5072
5073 let start_point = Point::new(start_row, 0);
5074 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
5075 let text = buffer
5076 .text_for_range(start_point..end_point)
5077 .collect::<String>();
5078
5079 let mut lines = text.split('\n').collect_vec();
5080
5081 let lines_before = lines.len();
5082 callback(&mut lines);
5083 let lines_after = lines.len();
5084
5085 edits.push((start_point..end_point, lines.join("\n")));
5086
5087 // Selections must change based on added and removed line count
5088 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
5089 let end_row = start_row + lines_after.saturating_sub(1) as u32;
5090 new_selections.push(Selection {
5091 id: selection.id,
5092 start: start_row,
5093 end: end_row,
5094 goal: SelectionGoal::None,
5095 reversed: selection.reversed,
5096 });
5097
5098 if lines_after > lines_before {
5099 added_lines += lines_after - lines_before;
5100 } else if lines_before > lines_after {
5101 removed_lines += lines_before - lines_after;
5102 }
5103 }
5104
5105 self.transact(cx, |this, cx| {
5106 let buffer = this.buffer.update(cx, |buffer, cx| {
5107 buffer.edit(edits, None, cx);
5108 buffer.snapshot(cx)
5109 });
5110
5111 // Recalculate offsets on newly edited buffer
5112 let new_selections = new_selections
5113 .iter()
5114 .map(|s| {
5115 let start_point = Point::new(s.start, 0);
5116 let end_point = Point::new(s.end, buffer.line_len(s.end));
5117 Selection {
5118 id: s.id,
5119 start: buffer.point_to_offset(start_point),
5120 end: buffer.point_to_offset(end_point),
5121 goal: s.goal,
5122 reversed: s.reversed,
5123 }
5124 })
5125 .collect();
5126
5127 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5128 s.select(new_selections);
5129 });
5130
5131 this.request_autoscroll(Autoscroll::fit(), cx);
5132 });
5133 }
5134
5135 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5136 self.manipulate_text(cx, |text| text.to_uppercase())
5137 }
5138
5139 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5140 self.manipulate_text(cx, |text| text.to_lowercase())
5141 }
5142
5143 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5144 self.manipulate_text(cx, |text| {
5145 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5146 // https://github.com/rutrum/convert-case/issues/16
5147 text.split('\n')
5148 .map(|line| line.to_case(Case::Title))
5149 .join("\n")
5150 })
5151 }
5152
5153 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5154 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5155 }
5156
5157 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5158 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5159 }
5160
5161 pub fn convert_to_upper_camel_case(
5162 &mut self,
5163 _: &ConvertToUpperCamelCase,
5164 cx: &mut ViewContext<Self>,
5165 ) {
5166 self.manipulate_text(cx, |text| {
5167 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5168 // https://github.com/rutrum/convert-case/issues/16
5169 text.split('\n')
5170 .map(|line| line.to_case(Case::UpperCamel))
5171 .join("\n")
5172 })
5173 }
5174
5175 pub fn convert_to_lower_camel_case(
5176 &mut self,
5177 _: &ConvertToLowerCamelCase,
5178 cx: &mut ViewContext<Self>,
5179 ) {
5180 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5181 }
5182
5183 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5184 where
5185 Fn: FnMut(&str) -> String,
5186 {
5187 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5188 let buffer = self.buffer.read(cx).snapshot(cx);
5189
5190 let mut new_selections = Vec::new();
5191 let mut edits = Vec::new();
5192 let mut selection_adjustment = 0i32;
5193
5194 for selection in self.selections.all::<usize>(cx) {
5195 let selection_is_empty = selection.is_empty();
5196
5197 let (start, end) = if selection_is_empty {
5198 let word_range = movement::surrounding_word(
5199 &display_map,
5200 selection.start.to_display_point(&display_map),
5201 );
5202 let start = word_range.start.to_offset(&display_map, Bias::Left);
5203 let end = word_range.end.to_offset(&display_map, Bias::Left);
5204 (start, end)
5205 } else {
5206 (selection.start, selection.end)
5207 };
5208
5209 let text = buffer.text_for_range(start..end).collect::<String>();
5210 let old_length = text.len() as i32;
5211 let text = callback(&text);
5212
5213 new_selections.push(Selection {
5214 start: (start as i32 - selection_adjustment) as usize,
5215 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5216 goal: SelectionGoal::None,
5217 ..selection
5218 });
5219
5220 selection_adjustment += old_length - text.len() as i32;
5221
5222 edits.push((start..end, text));
5223 }
5224
5225 self.transact(cx, |this, cx| {
5226 this.buffer.update(cx, |buffer, cx| {
5227 buffer.edit(edits, None, cx);
5228 });
5229
5230 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5231 s.select(new_selections);
5232 });
5233
5234 this.request_autoscroll(Autoscroll::fit(), cx);
5235 });
5236 }
5237
5238 pub fn duplicate_line(&mut self, action: &DuplicateLine, cx: &mut ViewContext<Self>) {
5239 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5240 let buffer = &display_map.buffer_snapshot;
5241 let selections = self.selections.all::<Point>(cx);
5242
5243 let mut edits = Vec::new();
5244 let mut selections_iter = selections.iter().peekable();
5245 while let Some(selection) = selections_iter.next() {
5246 // Avoid duplicating the same lines twice.
5247 let mut rows = selection.spanned_rows(false, &display_map);
5248
5249 while let Some(next_selection) = selections_iter.peek() {
5250 let next_rows = next_selection.spanned_rows(false, &display_map);
5251 if next_rows.start < rows.end {
5252 rows.end = next_rows.end;
5253 selections_iter.next().unwrap();
5254 } else {
5255 break;
5256 }
5257 }
5258
5259 // Copy the text from the selected row region and splice it either at the start
5260 // or end of the region.
5261 let start = Point::new(rows.start, 0);
5262 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5263 let text = buffer
5264 .text_for_range(start..end)
5265 .chain(Some("\n"))
5266 .collect::<String>();
5267 let insert_location = if action.move_upwards {
5268 Point::new(rows.end, 0)
5269 } else {
5270 start
5271 };
5272 edits.push((insert_location..insert_location, text));
5273 }
5274
5275 self.transact(cx, |this, cx| {
5276 this.buffer.update(cx, |buffer, cx| {
5277 buffer.edit(edits, None, cx);
5278 });
5279
5280 this.request_autoscroll(Autoscroll::fit(), cx);
5281 });
5282 }
5283
5284 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5285 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5286 let buffer = self.buffer.read(cx).snapshot(cx);
5287
5288 let mut edits = Vec::new();
5289 let mut unfold_ranges = Vec::new();
5290 let mut refold_ranges = Vec::new();
5291
5292 let selections = self.selections.all::<Point>(cx);
5293 let mut selections = selections.iter().peekable();
5294 let mut contiguous_row_selections = Vec::new();
5295 let mut new_selections = Vec::new();
5296
5297 while let Some(selection) = selections.next() {
5298 // Find all the selections that span a contiguous row range
5299 let (start_row, end_row) = consume_contiguous_rows(
5300 &mut contiguous_row_selections,
5301 selection,
5302 &display_map,
5303 &mut selections,
5304 );
5305
5306 // Move the text spanned by the row range to be before the line preceding the row range
5307 if start_row > 0 {
5308 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5309 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5310 let insertion_point = display_map
5311 .prev_line_boundary(Point::new(start_row - 1, 0))
5312 .0;
5313
5314 // Don't move lines across excerpts
5315 if buffer
5316 .excerpt_boundaries_in_range((
5317 Bound::Excluded(insertion_point),
5318 Bound::Included(range_to_move.end),
5319 ))
5320 .next()
5321 .is_none()
5322 {
5323 let text = buffer
5324 .text_for_range(range_to_move.clone())
5325 .flat_map(|s| s.chars())
5326 .skip(1)
5327 .chain(['\n'])
5328 .collect::<String>();
5329
5330 edits.push((
5331 buffer.anchor_after(range_to_move.start)
5332 ..buffer.anchor_before(range_to_move.end),
5333 String::new(),
5334 ));
5335 let insertion_anchor = buffer.anchor_after(insertion_point);
5336 edits.push((insertion_anchor..insertion_anchor, text));
5337
5338 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5339
5340 // Move selections up
5341 new_selections.extend(contiguous_row_selections.drain(..).map(
5342 |mut selection| {
5343 selection.start.row -= row_delta;
5344 selection.end.row -= row_delta;
5345 selection
5346 },
5347 ));
5348
5349 // Move folds up
5350 unfold_ranges.push(range_to_move.clone());
5351 for fold in display_map.folds_in_range(
5352 buffer.anchor_before(range_to_move.start)
5353 ..buffer.anchor_after(range_to_move.end),
5354 ) {
5355 let mut start = fold.range.start.to_point(&buffer);
5356 let mut end = fold.range.end.to_point(&buffer);
5357 start.row -= row_delta;
5358 end.row -= row_delta;
5359 refold_ranges.push(start..end);
5360 }
5361 }
5362 }
5363
5364 // If we didn't move line(s), preserve the existing selections
5365 new_selections.append(&mut contiguous_row_selections);
5366 }
5367
5368 self.transact(cx, |this, cx| {
5369 this.unfold_ranges(unfold_ranges, true, true, cx);
5370 this.buffer.update(cx, |buffer, cx| {
5371 for (range, text) in edits {
5372 buffer.edit([(range, text)], None, cx);
5373 }
5374 });
5375 this.fold_ranges(refold_ranges, true, cx);
5376 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5377 s.select(new_selections);
5378 })
5379 });
5380 }
5381
5382 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5383 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5384 let buffer = self.buffer.read(cx).snapshot(cx);
5385
5386 let mut edits = Vec::new();
5387 let mut unfold_ranges = Vec::new();
5388 let mut refold_ranges = Vec::new();
5389
5390 let selections = self.selections.all::<Point>(cx);
5391 let mut selections = selections.iter().peekable();
5392 let mut contiguous_row_selections = Vec::new();
5393 let mut new_selections = Vec::new();
5394
5395 while let Some(selection) = selections.next() {
5396 // Find all the selections that span a contiguous row range
5397 let (start_row, end_row) = consume_contiguous_rows(
5398 &mut contiguous_row_selections,
5399 selection,
5400 &display_map,
5401 &mut selections,
5402 );
5403
5404 // Move the text spanned by the row range to be after the last line of the row range
5405 if end_row <= buffer.max_point().row {
5406 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5407 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5408
5409 // Don't move lines across excerpt boundaries
5410 if buffer
5411 .excerpt_boundaries_in_range((
5412 Bound::Excluded(range_to_move.start),
5413 Bound::Included(insertion_point),
5414 ))
5415 .next()
5416 .is_none()
5417 {
5418 let mut text = String::from("\n");
5419 text.extend(buffer.text_for_range(range_to_move.clone()));
5420 text.pop(); // Drop trailing newline
5421 edits.push((
5422 buffer.anchor_after(range_to_move.start)
5423 ..buffer.anchor_before(range_to_move.end),
5424 String::new(),
5425 ));
5426 let insertion_anchor = buffer.anchor_after(insertion_point);
5427 edits.push((insertion_anchor..insertion_anchor, text));
5428
5429 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5430
5431 // Move selections down
5432 new_selections.extend(contiguous_row_selections.drain(..).map(
5433 |mut selection| {
5434 selection.start.row += row_delta;
5435 selection.end.row += row_delta;
5436 selection
5437 },
5438 ));
5439
5440 // Move folds down
5441 unfold_ranges.push(range_to_move.clone());
5442 for fold in display_map.folds_in_range(
5443 buffer.anchor_before(range_to_move.start)
5444 ..buffer.anchor_after(range_to_move.end),
5445 ) {
5446 let mut start = fold.range.start.to_point(&buffer);
5447 let mut end = fold.range.end.to_point(&buffer);
5448 start.row += row_delta;
5449 end.row += row_delta;
5450 refold_ranges.push(start..end);
5451 }
5452 }
5453 }
5454
5455 // If we didn't move line(s), preserve the existing selections
5456 new_selections.append(&mut contiguous_row_selections);
5457 }
5458
5459 self.transact(cx, |this, cx| {
5460 this.unfold_ranges(unfold_ranges, true, true, cx);
5461 this.buffer.update(cx, |buffer, cx| {
5462 for (range, text) in edits {
5463 buffer.edit([(range, text)], None, cx);
5464 }
5465 });
5466 this.fold_ranges(refold_ranges, true, cx);
5467 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5468 });
5469 }
5470
5471 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5472 let text_layout_details = &self.text_layout_details(cx);
5473 self.transact(cx, |this, cx| {
5474 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5475 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5476 let line_mode = s.line_mode;
5477 s.move_with(|display_map, selection| {
5478 if !selection.is_empty() || line_mode {
5479 return;
5480 }
5481
5482 let mut head = selection.head();
5483 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5484 if head.column() == display_map.line_len(head.row()) {
5485 transpose_offset = display_map
5486 .buffer_snapshot
5487 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5488 }
5489
5490 if transpose_offset == 0 {
5491 return;
5492 }
5493
5494 *head.column_mut() += 1;
5495 head = display_map.clip_point(head, Bias::Right);
5496 let goal = SelectionGoal::HorizontalPosition(
5497 display_map
5498 .x_for_display_point(head, &text_layout_details)
5499 .into(),
5500 );
5501 selection.collapse_to(head, goal);
5502
5503 let transpose_start = display_map
5504 .buffer_snapshot
5505 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5506 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5507 let transpose_end = display_map
5508 .buffer_snapshot
5509 .clip_offset(transpose_offset + 1, Bias::Right);
5510 if let Some(ch) =
5511 display_map.buffer_snapshot.chars_at(transpose_start).next()
5512 {
5513 edits.push((transpose_start..transpose_offset, String::new()));
5514 edits.push((transpose_end..transpose_end, ch.to_string()));
5515 }
5516 }
5517 });
5518 edits
5519 });
5520 this.buffer
5521 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5522 let selections = this.selections.all::<usize>(cx);
5523 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5524 s.select(selections);
5525 });
5526 });
5527 }
5528
5529 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5530 let mut text = String::new();
5531 let buffer = self.buffer.read(cx).snapshot(cx);
5532 let mut selections = self.selections.all::<Point>(cx);
5533 let mut clipboard_selections = Vec::with_capacity(selections.len());
5534 {
5535 let max_point = buffer.max_point();
5536 let mut is_first = true;
5537 for selection in &mut selections {
5538 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5539 if is_entire_line {
5540 selection.start = Point::new(selection.start.row, 0);
5541 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5542 selection.goal = SelectionGoal::None;
5543 }
5544 if is_first {
5545 is_first = false;
5546 } else {
5547 text += "\n";
5548 }
5549 let mut len = 0;
5550 for chunk in buffer.text_for_range(selection.start..selection.end) {
5551 text.push_str(chunk);
5552 len += chunk.len();
5553 }
5554 clipboard_selections.push(ClipboardSelection {
5555 len,
5556 is_entire_line,
5557 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5558 });
5559 }
5560 }
5561
5562 self.transact(cx, |this, cx| {
5563 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5564 s.select(selections);
5565 });
5566 this.insert("", cx);
5567 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5568 });
5569 }
5570
5571 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5572 let selections = self.selections.all::<Point>(cx);
5573 let buffer = self.buffer.read(cx).read(cx);
5574 let mut text = String::new();
5575
5576 let mut clipboard_selections = Vec::with_capacity(selections.len());
5577 {
5578 let max_point = buffer.max_point();
5579 let mut is_first = true;
5580 for selection in selections.iter() {
5581 let mut start = selection.start;
5582 let mut end = selection.end;
5583 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5584 if is_entire_line {
5585 start = Point::new(start.row, 0);
5586 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5587 }
5588 if is_first {
5589 is_first = false;
5590 } else {
5591 text += "\n";
5592 }
5593 let mut len = 0;
5594 for chunk in buffer.text_for_range(start..end) {
5595 text.push_str(chunk);
5596 len += chunk.len();
5597 }
5598 clipboard_selections.push(ClipboardSelection {
5599 len,
5600 is_entire_line,
5601 first_line_indent: buffer.indent_size_for_line(start.row).len,
5602 });
5603 }
5604 }
5605
5606 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5607 }
5608
5609 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5610 if self.read_only(cx) {
5611 return;
5612 }
5613
5614 self.transact(cx, |this, cx| {
5615 if let Some(item) = cx.read_from_clipboard() {
5616 let clipboard_text = Cow::Borrowed(item.text());
5617 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5618 let old_selections = this.selections.all::<usize>(cx);
5619 let all_selections_were_entire_line =
5620 clipboard_selections.iter().all(|s| s.is_entire_line);
5621 let first_selection_indent_column =
5622 clipboard_selections.first().map(|s| s.first_line_indent);
5623 if clipboard_selections.len() != old_selections.len() {
5624 clipboard_selections.drain(..);
5625 }
5626
5627 this.buffer.update(cx, |buffer, cx| {
5628 let snapshot = buffer.read(cx);
5629 let mut start_offset = 0;
5630 let mut edits = Vec::new();
5631 let mut original_indent_columns = Vec::new();
5632 let line_mode = this.selections.line_mode;
5633 for (ix, selection) in old_selections.iter().enumerate() {
5634 let to_insert;
5635 let entire_line;
5636 let original_indent_column;
5637 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5638 let end_offset = start_offset + clipboard_selection.len;
5639 to_insert = &clipboard_text[start_offset..end_offset];
5640 entire_line = clipboard_selection.is_entire_line;
5641 start_offset = end_offset + 1;
5642 original_indent_column =
5643 Some(clipboard_selection.first_line_indent);
5644 } else {
5645 to_insert = clipboard_text.as_str();
5646 entire_line = all_selections_were_entire_line;
5647 original_indent_column = first_selection_indent_column
5648 }
5649
5650 // If the corresponding selection was empty when this slice of the
5651 // clipboard text was written, then the entire line containing the
5652 // selection was copied. If this selection is also currently empty,
5653 // then paste the line before the current line of the buffer.
5654 let range = if selection.is_empty() && !line_mode && entire_line {
5655 let column = selection.start.to_point(&snapshot).column as usize;
5656 let line_start = selection.start - column;
5657 line_start..line_start
5658 } else {
5659 selection.range()
5660 };
5661
5662 edits.push((range, to_insert));
5663 original_indent_columns.extend(original_indent_column);
5664 }
5665 drop(snapshot);
5666
5667 buffer.edit(
5668 edits,
5669 Some(AutoindentMode::Block {
5670 original_indent_columns,
5671 }),
5672 cx,
5673 );
5674 });
5675
5676 let selections = this.selections.all::<usize>(cx);
5677 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5678 } else {
5679 this.insert(&clipboard_text, cx);
5680 }
5681 }
5682 });
5683 }
5684
5685 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5686 if self.read_only(cx) {
5687 return;
5688 }
5689
5690 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5691 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5692 self.change_selections(None, cx, |s| {
5693 s.select_anchors(selections.to_vec());
5694 });
5695 }
5696 self.request_autoscroll(Autoscroll::fit(), cx);
5697 self.unmark_text(cx);
5698 self.refresh_copilot_suggestions(true, cx);
5699 cx.emit(EditorEvent::Edited);
5700 cx.emit(EditorEvent::TransactionUndone {
5701 transaction_id: tx_id,
5702 });
5703 }
5704 }
5705
5706 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5707 if self.read_only(cx) {
5708 return;
5709 }
5710
5711 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5712 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5713 {
5714 self.change_selections(None, cx, |s| {
5715 s.select_anchors(selections.to_vec());
5716 });
5717 }
5718 self.request_autoscroll(Autoscroll::fit(), cx);
5719 self.unmark_text(cx);
5720 self.refresh_copilot_suggestions(true, cx);
5721 cx.emit(EditorEvent::Edited);
5722 }
5723 }
5724
5725 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5726 self.buffer
5727 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5728 }
5729
5730 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
5731 self.buffer
5732 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
5733 }
5734
5735 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5736 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5737 let line_mode = s.line_mode;
5738 s.move_with(|map, selection| {
5739 let cursor = if selection.is_empty() && !line_mode {
5740 movement::left(map, selection.start)
5741 } else {
5742 selection.start
5743 };
5744 selection.collapse_to(cursor, SelectionGoal::None);
5745 });
5746 })
5747 }
5748
5749 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5750 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5751 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5752 })
5753 }
5754
5755 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5756 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5757 let line_mode = s.line_mode;
5758 s.move_with(|map, selection| {
5759 let cursor = if selection.is_empty() && !line_mode {
5760 movement::right(map, selection.end)
5761 } else {
5762 selection.end
5763 };
5764 selection.collapse_to(cursor, SelectionGoal::None)
5765 });
5766 })
5767 }
5768
5769 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5770 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5771 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5772 })
5773 }
5774
5775 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5776 if self.take_rename(true, cx).is_some() {
5777 return;
5778 }
5779
5780 if matches!(self.mode, EditorMode::SingleLine) {
5781 cx.propagate();
5782 return;
5783 }
5784
5785 let text_layout_details = &self.text_layout_details(cx);
5786
5787 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5788 let line_mode = s.line_mode;
5789 s.move_with(|map, selection| {
5790 if !selection.is_empty() && !line_mode {
5791 selection.goal = SelectionGoal::None;
5792 }
5793 let (cursor, goal) = movement::up(
5794 map,
5795 selection.start,
5796 selection.goal,
5797 false,
5798 &text_layout_details,
5799 );
5800 selection.collapse_to(cursor, goal);
5801 });
5802 })
5803 }
5804
5805 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5806 if self.take_rename(true, cx).is_some() {
5807 return;
5808 }
5809
5810 if matches!(self.mode, EditorMode::SingleLine) {
5811 cx.propagate();
5812 return;
5813 }
5814
5815 let text_layout_details = &self.text_layout_details(cx);
5816
5817 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5818 let line_mode = s.line_mode;
5819 s.move_with(|map, selection| {
5820 if !selection.is_empty() && !line_mode {
5821 selection.goal = SelectionGoal::None;
5822 }
5823 let (cursor, goal) = movement::up_by_rows(
5824 map,
5825 selection.start,
5826 action.lines,
5827 selection.goal,
5828 false,
5829 &text_layout_details,
5830 );
5831 selection.collapse_to(cursor, goal);
5832 });
5833 })
5834 }
5835
5836 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5837 if self.take_rename(true, cx).is_some() {
5838 return;
5839 }
5840
5841 if matches!(self.mode, EditorMode::SingleLine) {
5842 cx.propagate();
5843 return;
5844 }
5845
5846 let text_layout_details = &self.text_layout_details(cx);
5847
5848 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5849 let line_mode = s.line_mode;
5850 s.move_with(|map, selection| {
5851 if !selection.is_empty() && !line_mode {
5852 selection.goal = SelectionGoal::None;
5853 }
5854 let (cursor, goal) = movement::down_by_rows(
5855 map,
5856 selection.start,
5857 action.lines,
5858 selection.goal,
5859 false,
5860 &text_layout_details,
5861 );
5862 selection.collapse_to(cursor, goal);
5863 });
5864 })
5865 }
5866
5867 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5868 let text_layout_details = &self.text_layout_details(cx);
5869 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5870 s.move_heads_with(|map, head, goal| {
5871 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5872 })
5873 })
5874 }
5875
5876 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5877 let text_layout_details = &self.text_layout_details(cx);
5878 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5879 s.move_heads_with(|map, head, goal| {
5880 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5881 })
5882 })
5883 }
5884
5885 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5886 if self.take_rename(true, cx).is_some() {
5887 return;
5888 }
5889
5890 if matches!(self.mode, EditorMode::SingleLine) {
5891 cx.propagate();
5892 return;
5893 }
5894
5895 let row_count = if let Some(row_count) = self.visible_line_count() {
5896 row_count as u32 - 1
5897 } else {
5898 return;
5899 };
5900
5901 let autoscroll = if action.center_cursor {
5902 Autoscroll::center()
5903 } else {
5904 Autoscroll::fit()
5905 };
5906
5907 let text_layout_details = &self.text_layout_details(cx);
5908
5909 self.change_selections(Some(autoscroll), cx, |s| {
5910 let line_mode = s.line_mode;
5911 s.move_with(|map, selection| {
5912 if !selection.is_empty() && !line_mode {
5913 selection.goal = SelectionGoal::None;
5914 }
5915 let (cursor, goal) = movement::up_by_rows(
5916 map,
5917 selection.end,
5918 row_count,
5919 selection.goal,
5920 false,
5921 &text_layout_details,
5922 );
5923 selection.collapse_to(cursor, goal);
5924 });
5925 });
5926 }
5927
5928 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5929 let text_layout_details = &self.text_layout_details(cx);
5930 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5931 s.move_heads_with(|map, head, goal| {
5932 movement::up(map, head, goal, false, &text_layout_details)
5933 })
5934 })
5935 }
5936
5937 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5938 self.take_rename(true, cx);
5939
5940 if self.mode == EditorMode::SingleLine {
5941 cx.propagate();
5942 return;
5943 }
5944
5945 let text_layout_details = &self.text_layout_details(cx);
5946 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5947 let line_mode = s.line_mode;
5948 s.move_with(|map, selection| {
5949 if !selection.is_empty() && !line_mode {
5950 selection.goal = SelectionGoal::None;
5951 }
5952 let (cursor, goal) = movement::down(
5953 map,
5954 selection.end,
5955 selection.goal,
5956 false,
5957 &text_layout_details,
5958 );
5959 selection.collapse_to(cursor, goal);
5960 });
5961 });
5962 }
5963
5964 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5965 if self.take_rename(true, cx).is_some() {
5966 return;
5967 }
5968
5969 if self
5970 .context_menu
5971 .write()
5972 .as_mut()
5973 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5974 .unwrap_or(false)
5975 {
5976 return;
5977 }
5978
5979 if matches!(self.mode, EditorMode::SingleLine) {
5980 cx.propagate();
5981 return;
5982 }
5983
5984 let row_count = if let Some(row_count) = self.visible_line_count() {
5985 row_count as u32 - 1
5986 } else {
5987 return;
5988 };
5989
5990 let autoscroll = if action.center_cursor {
5991 Autoscroll::center()
5992 } else {
5993 Autoscroll::fit()
5994 };
5995
5996 let text_layout_details = &self.text_layout_details(cx);
5997 self.change_selections(Some(autoscroll), cx, |s| {
5998 let line_mode = s.line_mode;
5999 s.move_with(|map, selection| {
6000 if !selection.is_empty() && !line_mode {
6001 selection.goal = SelectionGoal::None;
6002 }
6003 let (cursor, goal) = movement::down_by_rows(
6004 map,
6005 selection.end,
6006 row_count,
6007 selection.goal,
6008 false,
6009 &text_layout_details,
6010 );
6011 selection.collapse_to(cursor, goal);
6012 });
6013 });
6014 }
6015
6016 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6017 let text_layout_details = &self.text_layout_details(cx);
6018 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6019 s.move_heads_with(|map, head, goal| {
6020 movement::down(map, head, goal, false, &text_layout_details)
6021 })
6022 });
6023 }
6024
6025 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6026 if let Some(context_menu) = self.context_menu.write().as_mut() {
6027 context_menu.select_first(self.project.as_ref(), cx);
6028 }
6029 }
6030
6031 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6032 if let Some(context_menu) = self.context_menu.write().as_mut() {
6033 context_menu.select_prev(self.project.as_ref(), cx);
6034 }
6035 }
6036
6037 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6038 if let Some(context_menu) = self.context_menu.write().as_mut() {
6039 context_menu.select_next(self.project.as_ref(), cx);
6040 }
6041 }
6042
6043 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6044 if let Some(context_menu) = self.context_menu.write().as_mut() {
6045 context_menu.select_last(self.project.as_ref(), cx);
6046 }
6047 }
6048
6049 pub fn move_to_previous_word_start(
6050 &mut self,
6051 _: &MoveToPreviousWordStart,
6052 cx: &mut ViewContext<Self>,
6053 ) {
6054 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6055 s.move_cursors_with(|map, head, _| {
6056 (
6057 movement::previous_word_start(map, head),
6058 SelectionGoal::None,
6059 )
6060 });
6061 })
6062 }
6063
6064 pub fn move_to_previous_subword_start(
6065 &mut self,
6066 _: &MoveToPreviousSubwordStart,
6067 cx: &mut ViewContext<Self>,
6068 ) {
6069 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6070 s.move_cursors_with(|map, head, _| {
6071 (
6072 movement::previous_subword_start(map, head),
6073 SelectionGoal::None,
6074 )
6075 });
6076 })
6077 }
6078
6079 pub fn select_to_previous_word_start(
6080 &mut self,
6081 _: &SelectToPreviousWordStart,
6082 cx: &mut ViewContext<Self>,
6083 ) {
6084 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6085 s.move_heads_with(|map, head, _| {
6086 (
6087 movement::previous_word_start(map, head),
6088 SelectionGoal::None,
6089 )
6090 });
6091 })
6092 }
6093
6094 pub fn select_to_previous_subword_start(
6095 &mut self,
6096 _: &SelectToPreviousSubwordStart,
6097 cx: &mut ViewContext<Self>,
6098 ) {
6099 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6100 s.move_heads_with(|map, head, _| {
6101 (
6102 movement::previous_subword_start(map, head),
6103 SelectionGoal::None,
6104 )
6105 });
6106 })
6107 }
6108
6109 pub fn delete_to_previous_word_start(
6110 &mut self,
6111 _: &DeleteToPreviousWordStart,
6112 cx: &mut ViewContext<Self>,
6113 ) {
6114 self.transact(cx, |this, cx| {
6115 this.select_autoclose_pair(cx);
6116 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6117 let line_mode = s.line_mode;
6118 s.move_with(|map, selection| {
6119 if selection.is_empty() && !line_mode {
6120 let cursor = movement::previous_word_start(map, selection.head());
6121 selection.set_head(cursor, SelectionGoal::None);
6122 }
6123 });
6124 });
6125 this.insert("", cx);
6126 });
6127 }
6128
6129 pub fn delete_to_previous_subword_start(
6130 &mut self,
6131 _: &DeleteToPreviousSubwordStart,
6132 cx: &mut ViewContext<Self>,
6133 ) {
6134 self.transact(cx, |this, cx| {
6135 this.select_autoclose_pair(cx);
6136 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6137 let line_mode = s.line_mode;
6138 s.move_with(|map, selection| {
6139 if selection.is_empty() && !line_mode {
6140 let cursor = movement::previous_subword_start(map, selection.head());
6141 selection.set_head(cursor, SelectionGoal::None);
6142 }
6143 });
6144 });
6145 this.insert("", cx);
6146 });
6147 }
6148
6149 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6150 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6151 s.move_cursors_with(|map, head, _| {
6152 (movement::next_word_end(map, head), SelectionGoal::None)
6153 });
6154 })
6155 }
6156
6157 pub fn move_to_next_subword_end(
6158 &mut self,
6159 _: &MoveToNextSubwordEnd,
6160 cx: &mut ViewContext<Self>,
6161 ) {
6162 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6163 s.move_cursors_with(|map, head, _| {
6164 (movement::next_subword_end(map, head), SelectionGoal::None)
6165 });
6166 })
6167 }
6168
6169 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6170 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6171 s.move_heads_with(|map, head, _| {
6172 (movement::next_word_end(map, head), SelectionGoal::None)
6173 });
6174 })
6175 }
6176
6177 pub fn select_to_next_subword_end(
6178 &mut self,
6179 _: &SelectToNextSubwordEnd,
6180 cx: &mut ViewContext<Self>,
6181 ) {
6182 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6183 s.move_heads_with(|map, head, _| {
6184 (movement::next_subword_end(map, head), SelectionGoal::None)
6185 });
6186 })
6187 }
6188
6189 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6190 self.transact(cx, |this, cx| {
6191 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6192 let line_mode = s.line_mode;
6193 s.move_with(|map, selection| {
6194 if selection.is_empty() && !line_mode {
6195 let cursor = movement::next_word_end(map, selection.head());
6196 selection.set_head(cursor, SelectionGoal::None);
6197 }
6198 });
6199 });
6200 this.insert("", cx);
6201 });
6202 }
6203
6204 pub fn delete_to_next_subword_end(
6205 &mut self,
6206 _: &DeleteToNextSubwordEnd,
6207 cx: &mut ViewContext<Self>,
6208 ) {
6209 self.transact(cx, |this, cx| {
6210 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6211 s.move_with(|map, selection| {
6212 if selection.is_empty() {
6213 let cursor = movement::next_subword_end(map, selection.head());
6214 selection.set_head(cursor, SelectionGoal::None);
6215 }
6216 });
6217 });
6218 this.insert("", cx);
6219 });
6220 }
6221
6222 pub fn move_to_beginning_of_line(
6223 &mut self,
6224 _: &MoveToBeginningOfLine,
6225 cx: &mut ViewContext<Self>,
6226 ) {
6227 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6228 s.move_cursors_with(|map, head, _| {
6229 (
6230 movement::indented_line_beginning(map, head, true),
6231 SelectionGoal::None,
6232 )
6233 });
6234 })
6235 }
6236
6237 pub fn select_to_beginning_of_line(
6238 &mut self,
6239 action: &SelectToBeginningOfLine,
6240 cx: &mut ViewContext<Self>,
6241 ) {
6242 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6243 s.move_heads_with(|map, head, _| {
6244 (
6245 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6246 SelectionGoal::None,
6247 )
6248 });
6249 });
6250 }
6251
6252 pub fn delete_to_beginning_of_line(
6253 &mut self,
6254 _: &DeleteToBeginningOfLine,
6255 cx: &mut ViewContext<Self>,
6256 ) {
6257 self.transact(cx, |this, cx| {
6258 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6259 s.move_with(|_, selection| {
6260 selection.reversed = true;
6261 });
6262 });
6263
6264 this.select_to_beginning_of_line(
6265 &SelectToBeginningOfLine {
6266 stop_at_soft_wraps: false,
6267 },
6268 cx,
6269 );
6270 this.backspace(&Backspace, cx);
6271 });
6272 }
6273
6274 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6275 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6276 s.move_cursors_with(|map, head, _| {
6277 (movement::line_end(map, head, true), SelectionGoal::None)
6278 });
6279 })
6280 }
6281
6282 pub fn select_to_end_of_line(
6283 &mut self,
6284 action: &SelectToEndOfLine,
6285 cx: &mut ViewContext<Self>,
6286 ) {
6287 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6288 s.move_heads_with(|map, head, _| {
6289 (
6290 movement::line_end(map, head, action.stop_at_soft_wraps),
6291 SelectionGoal::None,
6292 )
6293 });
6294 })
6295 }
6296
6297 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6298 self.transact(cx, |this, cx| {
6299 this.select_to_end_of_line(
6300 &SelectToEndOfLine {
6301 stop_at_soft_wraps: false,
6302 },
6303 cx,
6304 );
6305 this.delete(&Delete, cx);
6306 });
6307 }
6308
6309 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6310 self.transact(cx, |this, cx| {
6311 this.select_to_end_of_line(
6312 &SelectToEndOfLine {
6313 stop_at_soft_wraps: false,
6314 },
6315 cx,
6316 );
6317 this.cut(&Cut, cx);
6318 });
6319 }
6320
6321 pub fn move_to_start_of_paragraph(
6322 &mut self,
6323 _: &MoveToStartOfParagraph,
6324 cx: &mut ViewContext<Self>,
6325 ) {
6326 if matches!(self.mode, EditorMode::SingleLine) {
6327 cx.propagate();
6328 return;
6329 }
6330
6331 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6332 s.move_with(|map, selection| {
6333 selection.collapse_to(
6334 movement::start_of_paragraph(map, selection.head(), 1),
6335 SelectionGoal::None,
6336 )
6337 });
6338 })
6339 }
6340
6341 pub fn move_to_end_of_paragraph(
6342 &mut self,
6343 _: &MoveToEndOfParagraph,
6344 cx: &mut ViewContext<Self>,
6345 ) {
6346 if matches!(self.mode, EditorMode::SingleLine) {
6347 cx.propagate();
6348 return;
6349 }
6350
6351 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6352 s.move_with(|map, selection| {
6353 selection.collapse_to(
6354 movement::end_of_paragraph(map, selection.head(), 1),
6355 SelectionGoal::None,
6356 )
6357 });
6358 })
6359 }
6360
6361 pub fn select_to_start_of_paragraph(
6362 &mut self,
6363 _: &SelectToStartOfParagraph,
6364 cx: &mut ViewContext<Self>,
6365 ) {
6366 if matches!(self.mode, EditorMode::SingleLine) {
6367 cx.propagate();
6368 return;
6369 }
6370
6371 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6372 s.move_heads_with(|map, head, _| {
6373 (
6374 movement::start_of_paragraph(map, head, 1),
6375 SelectionGoal::None,
6376 )
6377 });
6378 })
6379 }
6380
6381 pub fn select_to_end_of_paragraph(
6382 &mut self,
6383 _: &SelectToEndOfParagraph,
6384 cx: &mut ViewContext<Self>,
6385 ) {
6386 if matches!(self.mode, EditorMode::SingleLine) {
6387 cx.propagate();
6388 return;
6389 }
6390
6391 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6392 s.move_heads_with(|map, head, _| {
6393 (
6394 movement::end_of_paragraph(map, head, 1),
6395 SelectionGoal::None,
6396 )
6397 });
6398 })
6399 }
6400
6401 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6402 if matches!(self.mode, EditorMode::SingleLine) {
6403 cx.propagate();
6404 return;
6405 }
6406
6407 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6408 s.select_ranges(vec![0..0]);
6409 });
6410 }
6411
6412 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6413 let mut selection = self.selections.last::<Point>(cx);
6414 selection.set_head(Point::zero(), SelectionGoal::None);
6415
6416 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6417 s.select(vec![selection]);
6418 });
6419 }
6420
6421 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6422 if matches!(self.mode, EditorMode::SingleLine) {
6423 cx.propagate();
6424 return;
6425 }
6426
6427 let cursor = self.buffer.read(cx).read(cx).len();
6428 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6429 s.select_ranges(vec![cursor..cursor])
6430 });
6431 }
6432
6433 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6434 self.nav_history = nav_history;
6435 }
6436
6437 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6438 self.nav_history.as_ref()
6439 }
6440
6441 fn push_to_nav_history(
6442 &mut self,
6443 cursor_anchor: Anchor,
6444 new_position: Option<Point>,
6445 cx: &mut ViewContext<Self>,
6446 ) {
6447 if let Some(nav_history) = self.nav_history.as_mut() {
6448 let buffer = self.buffer.read(cx).read(cx);
6449 let cursor_position = cursor_anchor.to_point(&buffer);
6450 let scroll_state = self.scroll_manager.anchor();
6451 let scroll_top_row = scroll_state.top_row(&buffer);
6452 drop(buffer);
6453
6454 if let Some(new_position) = new_position {
6455 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6456 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6457 return;
6458 }
6459 }
6460
6461 nav_history.push(
6462 Some(NavigationData {
6463 cursor_anchor,
6464 cursor_position,
6465 scroll_anchor: scroll_state,
6466 scroll_top_row,
6467 }),
6468 cx,
6469 );
6470 }
6471 }
6472
6473 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6474 let buffer = self.buffer.read(cx).snapshot(cx);
6475 let mut selection = self.selections.first::<usize>(cx);
6476 selection.set_head(buffer.len(), SelectionGoal::None);
6477 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6478 s.select(vec![selection]);
6479 });
6480 }
6481
6482 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6483 let end = self.buffer.read(cx).read(cx).len();
6484 self.change_selections(None, cx, |s| {
6485 s.select_ranges(vec![0..end]);
6486 });
6487 }
6488
6489 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6490 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6491 let mut selections = self.selections.all::<Point>(cx);
6492 let max_point = display_map.buffer_snapshot.max_point();
6493 for selection in &mut selections {
6494 let rows = selection.spanned_rows(true, &display_map);
6495 selection.start = Point::new(rows.start, 0);
6496 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6497 selection.reversed = false;
6498 }
6499 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6500 s.select(selections);
6501 });
6502 }
6503
6504 pub fn split_selection_into_lines(
6505 &mut self,
6506 _: &SplitSelectionIntoLines,
6507 cx: &mut ViewContext<Self>,
6508 ) {
6509 let mut to_unfold = Vec::new();
6510 let mut new_selection_ranges = Vec::new();
6511 {
6512 let selections = self.selections.all::<Point>(cx);
6513 let buffer = self.buffer.read(cx).read(cx);
6514 for selection in selections {
6515 for row in selection.start.row..selection.end.row {
6516 let cursor = Point::new(row, buffer.line_len(row));
6517 new_selection_ranges.push(cursor..cursor);
6518 }
6519 new_selection_ranges.push(selection.end..selection.end);
6520 to_unfold.push(selection.start..selection.end);
6521 }
6522 }
6523 self.unfold_ranges(to_unfold, true, true, cx);
6524 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6525 s.select_ranges(new_selection_ranges);
6526 });
6527 }
6528
6529 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6530 self.add_selection(true, cx);
6531 }
6532
6533 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6534 self.add_selection(false, cx);
6535 }
6536
6537 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6538 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6539 let mut selections = self.selections.all::<Point>(cx);
6540 let text_layout_details = self.text_layout_details(cx);
6541 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6542 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6543 let range = oldest_selection.display_range(&display_map).sorted();
6544
6545 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6546 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6547 let positions = start_x.min(end_x)..start_x.max(end_x);
6548
6549 selections.clear();
6550 let mut stack = Vec::new();
6551 for row in range.start.row()..=range.end.row() {
6552 if let Some(selection) = self.selections.build_columnar_selection(
6553 &display_map,
6554 row,
6555 &positions,
6556 oldest_selection.reversed,
6557 &text_layout_details,
6558 ) {
6559 stack.push(selection.id);
6560 selections.push(selection);
6561 }
6562 }
6563
6564 if above {
6565 stack.reverse();
6566 }
6567
6568 AddSelectionsState { above, stack }
6569 });
6570
6571 let last_added_selection = *state.stack.last().unwrap();
6572 let mut new_selections = Vec::new();
6573 if above == state.above {
6574 let end_row = if above {
6575 0
6576 } else {
6577 display_map.max_point().row()
6578 };
6579
6580 'outer: for selection in selections {
6581 if selection.id == last_added_selection {
6582 let range = selection.display_range(&display_map).sorted();
6583 debug_assert_eq!(range.start.row(), range.end.row());
6584 let mut row = range.start.row();
6585 let positions =
6586 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6587 px(start)..px(end)
6588 } else {
6589 let start_x =
6590 display_map.x_for_display_point(range.start, &text_layout_details);
6591 let end_x =
6592 display_map.x_for_display_point(range.end, &text_layout_details);
6593 start_x.min(end_x)..start_x.max(end_x)
6594 };
6595
6596 while row != end_row {
6597 if above {
6598 row -= 1;
6599 } else {
6600 row += 1;
6601 }
6602
6603 if let Some(new_selection) = self.selections.build_columnar_selection(
6604 &display_map,
6605 row,
6606 &positions,
6607 selection.reversed,
6608 &text_layout_details,
6609 ) {
6610 state.stack.push(new_selection.id);
6611 if above {
6612 new_selections.push(new_selection);
6613 new_selections.push(selection);
6614 } else {
6615 new_selections.push(selection);
6616 new_selections.push(new_selection);
6617 }
6618
6619 continue 'outer;
6620 }
6621 }
6622 }
6623
6624 new_selections.push(selection);
6625 }
6626 } else {
6627 new_selections = selections;
6628 new_selections.retain(|s| s.id != last_added_selection);
6629 state.stack.pop();
6630 }
6631
6632 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6633 s.select(new_selections);
6634 });
6635 if state.stack.len() > 1 {
6636 self.add_selections_state = Some(state);
6637 }
6638 }
6639
6640 pub fn select_next_match_internal(
6641 &mut self,
6642 display_map: &DisplaySnapshot,
6643 replace_newest: bool,
6644 autoscroll: Option<Autoscroll>,
6645 cx: &mut ViewContext<Self>,
6646 ) -> Result<()> {
6647 fn select_next_match_ranges(
6648 this: &mut Editor,
6649 range: Range<usize>,
6650 replace_newest: bool,
6651 auto_scroll: Option<Autoscroll>,
6652 cx: &mut ViewContext<Editor>,
6653 ) {
6654 this.unfold_ranges([range.clone()], false, true, cx);
6655 this.change_selections(auto_scroll, cx, |s| {
6656 if replace_newest {
6657 s.delete(s.newest_anchor().id);
6658 }
6659 s.insert_range(range.clone());
6660 });
6661 }
6662
6663 let buffer = &display_map.buffer_snapshot;
6664 let mut selections = self.selections.all::<usize>(cx);
6665 if let Some(mut select_next_state) = self.select_next_state.take() {
6666 let query = &select_next_state.query;
6667 if !select_next_state.done {
6668 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6669 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6670 let mut next_selected_range = None;
6671
6672 let bytes_after_last_selection =
6673 buffer.bytes_in_range(last_selection.end..buffer.len());
6674 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6675 let query_matches = query
6676 .stream_find_iter(bytes_after_last_selection)
6677 .map(|result| (last_selection.end, result))
6678 .chain(
6679 query
6680 .stream_find_iter(bytes_before_first_selection)
6681 .map(|result| (0, result)),
6682 );
6683
6684 for (start_offset, query_match) in query_matches {
6685 let query_match = query_match.unwrap(); // can only fail due to I/O
6686 let offset_range =
6687 start_offset + query_match.start()..start_offset + query_match.end();
6688 let display_range = offset_range.start.to_display_point(&display_map)
6689 ..offset_range.end.to_display_point(&display_map);
6690
6691 if !select_next_state.wordwise
6692 || (!movement::is_inside_word(&display_map, display_range.start)
6693 && !movement::is_inside_word(&display_map, display_range.end))
6694 {
6695 // TODO: This is n^2, because we might check all the selections
6696 if !selections
6697 .iter()
6698 .any(|selection| selection.range().overlaps(&offset_range))
6699 {
6700 next_selected_range = Some(offset_range);
6701 break;
6702 }
6703 }
6704 }
6705
6706 if let Some(next_selected_range) = next_selected_range {
6707 select_next_match_ranges(
6708 self,
6709 next_selected_range,
6710 replace_newest,
6711 autoscroll,
6712 cx,
6713 );
6714 } else {
6715 select_next_state.done = true;
6716 }
6717 }
6718
6719 self.select_next_state = Some(select_next_state);
6720 } else {
6721 let mut only_carets = true;
6722 let mut same_text_selected = true;
6723 let mut selected_text = None;
6724
6725 let mut selections_iter = selections.iter().peekable();
6726 while let Some(selection) = selections_iter.next() {
6727 if selection.start != selection.end {
6728 only_carets = false;
6729 }
6730
6731 if same_text_selected {
6732 if selected_text.is_none() {
6733 selected_text =
6734 Some(buffer.text_for_range(selection.range()).collect::<String>());
6735 }
6736
6737 if let Some(next_selection) = selections_iter.peek() {
6738 if next_selection.range().len() == selection.range().len() {
6739 let next_selected_text = buffer
6740 .text_for_range(next_selection.range())
6741 .collect::<String>();
6742 if Some(next_selected_text) != selected_text {
6743 same_text_selected = false;
6744 selected_text = None;
6745 }
6746 } else {
6747 same_text_selected = false;
6748 selected_text = None;
6749 }
6750 }
6751 }
6752 }
6753
6754 if only_carets {
6755 for selection in &mut selections {
6756 let word_range = movement::surrounding_word(
6757 &display_map,
6758 selection.start.to_display_point(&display_map),
6759 );
6760 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6761 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6762 selection.goal = SelectionGoal::None;
6763 selection.reversed = false;
6764 select_next_match_ranges(
6765 self,
6766 selection.start..selection.end,
6767 replace_newest,
6768 autoscroll,
6769 cx,
6770 );
6771 }
6772
6773 if selections.len() == 1 {
6774 let selection = selections
6775 .last()
6776 .expect("ensured that there's only one selection");
6777 let query = buffer
6778 .text_for_range(selection.start..selection.end)
6779 .collect::<String>();
6780 let is_empty = query.is_empty();
6781 let select_state = SelectNextState {
6782 query: AhoCorasick::new(&[query])?,
6783 wordwise: true,
6784 done: is_empty,
6785 };
6786 self.select_next_state = Some(select_state);
6787 } else {
6788 self.select_next_state = None;
6789 }
6790 } else if let Some(selected_text) = selected_text {
6791 self.select_next_state = Some(SelectNextState {
6792 query: AhoCorasick::new(&[selected_text])?,
6793 wordwise: false,
6794 done: false,
6795 });
6796 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6797 }
6798 }
6799 Ok(())
6800 }
6801
6802 pub fn select_all_matches(
6803 &mut self,
6804 _action: &SelectAllMatches,
6805 cx: &mut ViewContext<Self>,
6806 ) -> Result<()> {
6807 self.push_to_selection_history();
6808 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6809
6810 self.select_next_match_internal(&display_map, false, None, cx)?;
6811 let Some(select_next_state) = self.select_next_state.as_mut() else {
6812 return Ok(());
6813 };
6814 if select_next_state.done {
6815 return Ok(());
6816 }
6817
6818 let mut new_selections = self.selections.all::<usize>(cx);
6819
6820 let buffer = &display_map.buffer_snapshot;
6821 let query_matches = select_next_state
6822 .query
6823 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6824
6825 for query_match in query_matches {
6826 let query_match = query_match.unwrap(); // can only fail due to I/O
6827 let offset_range = query_match.start()..query_match.end();
6828 let display_range = offset_range.start.to_display_point(&display_map)
6829 ..offset_range.end.to_display_point(&display_map);
6830
6831 if !select_next_state.wordwise
6832 || (!movement::is_inside_word(&display_map, display_range.start)
6833 && !movement::is_inside_word(&display_map, display_range.end))
6834 {
6835 self.selections.change_with(cx, |selections| {
6836 new_selections.push(Selection {
6837 id: selections.new_selection_id(),
6838 start: offset_range.start,
6839 end: offset_range.end,
6840 reversed: false,
6841 goal: SelectionGoal::None,
6842 });
6843 });
6844 }
6845 }
6846
6847 new_selections.sort_by_key(|selection| selection.start);
6848 let mut ix = 0;
6849 while ix + 1 < new_selections.len() {
6850 let current_selection = &new_selections[ix];
6851 let next_selection = &new_selections[ix + 1];
6852 if current_selection.range().overlaps(&next_selection.range()) {
6853 if current_selection.id < next_selection.id {
6854 new_selections.remove(ix + 1);
6855 } else {
6856 new_selections.remove(ix);
6857 }
6858 } else {
6859 ix += 1;
6860 }
6861 }
6862
6863 select_next_state.done = true;
6864 self.unfold_ranges(
6865 new_selections.iter().map(|selection| selection.range()),
6866 false,
6867 false,
6868 cx,
6869 );
6870 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6871 selections.select(new_selections)
6872 });
6873
6874 Ok(())
6875 }
6876
6877 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6878 self.push_to_selection_history();
6879 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6880 self.select_next_match_internal(
6881 &display_map,
6882 action.replace_newest,
6883 Some(Autoscroll::newest()),
6884 cx,
6885 )?;
6886 Ok(())
6887 }
6888
6889 pub fn select_previous(
6890 &mut self,
6891 action: &SelectPrevious,
6892 cx: &mut ViewContext<Self>,
6893 ) -> Result<()> {
6894 self.push_to_selection_history();
6895 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6896 let buffer = &display_map.buffer_snapshot;
6897 let mut selections = self.selections.all::<usize>(cx);
6898 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6899 let query = &select_prev_state.query;
6900 if !select_prev_state.done {
6901 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6902 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6903 let mut next_selected_range = None;
6904 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6905 let bytes_before_last_selection =
6906 buffer.reversed_bytes_in_range(0..last_selection.start);
6907 let bytes_after_first_selection =
6908 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6909 let query_matches = query
6910 .stream_find_iter(bytes_before_last_selection)
6911 .map(|result| (last_selection.start, result))
6912 .chain(
6913 query
6914 .stream_find_iter(bytes_after_first_selection)
6915 .map(|result| (buffer.len(), result)),
6916 );
6917 for (end_offset, query_match) in query_matches {
6918 let query_match = query_match.unwrap(); // can only fail due to I/O
6919 let offset_range =
6920 end_offset - query_match.end()..end_offset - query_match.start();
6921 let display_range = offset_range.start.to_display_point(&display_map)
6922 ..offset_range.end.to_display_point(&display_map);
6923
6924 if !select_prev_state.wordwise
6925 || (!movement::is_inside_word(&display_map, display_range.start)
6926 && !movement::is_inside_word(&display_map, display_range.end))
6927 {
6928 next_selected_range = Some(offset_range);
6929 break;
6930 }
6931 }
6932
6933 if let Some(next_selected_range) = next_selected_range {
6934 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6935 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6936 if action.replace_newest {
6937 s.delete(s.newest_anchor().id);
6938 }
6939 s.insert_range(next_selected_range);
6940 });
6941 } else {
6942 select_prev_state.done = true;
6943 }
6944 }
6945
6946 self.select_prev_state = Some(select_prev_state);
6947 } else {
6948 let mut only_carets = true;
6949 let mut same_text_selected = true;
6950 let mut selected_text = None;
6951
6952 let mut selections_iter = selections.iter().peekable();
6953 while let Some(selection) = selections_iter.next() {
6954 if selection.start != selection.end {
6955 only_carets = false;
6956 }
6957
6958 if same_text_selected {
6959 if selected_text.is_none() {
6960 selected_text =
6961 Some(buffer.text_for_range(selection.range()).collect::<String>());
6962 }
6963
6964 if let Some(next_selection) = selections_iter.peek() {
6965 if next_selection.range().len() == selection.range().len() {
6966 let next_selected_text = buffer
6967 .text_for_range(next_selection.range())
6968 .collect::<String>();
6969 if Some(next_selected_text) != selected_text {
6970 same_text_selected = false;
6971 selected_text = None;
6972 }
6973 } else {
6974 same_text_selected = false;
6975 selected_text = None;
6976 }
6977 }
6978 }
6979 }
6980
6981 if only_carets {
6982 for selection in &mut selections {
6983 let word_range = movement::surrounding_word(
6984 &display_map,
6985 selection.start.to_display_point(&display_map),
6986 );
6987 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6988 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6989 selection.goal = SelectionGoal::None;
6990 selection.reversed = false;
6991 }
6992 if selections.len() == 1 {
6993 let selection = selections
6994 .last()
6995 .expect("ensured that there's only one selection");
6996 let query = buffer
6997 .text_for_range(selection.start..selection.end)
6998 .collect::<String>();
6999 let is_empty = query.is_empty();
7000 let select_state = SelectNextState {
7001 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7002 wordwise: true,
7003 done: is_empty,
7004 };
7005 self.select_prev_state = Some(select_state);
7006 } else {
7007 self.select_prev_state = None;
7008 }
7009
7010 self.unfold_ranges(
7011 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7012 false,
7013 true,
7014 cx,
7015 );
7016 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7017 s.select(selections);
7018 });
7019 } else if let Some(selected_text) = selected_text {
7020 self.select_prev_state = Some(SelectNextState {
7021 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7022 wordwise: false,
7023 done: false,
7024 });
7025 self.select_previous(action, cx)?;
7026 }
7027 }
7028 Ok(())
7029 }
7030
7031 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7032 let text_layout_details = &self.text_layout_details(cx);
7033 self.transact(cx, |this, cx| {
7034 let mut selections = this.selections.all::<Point>(cx);
7035 let mut edits = Vec::new();
7036 let mut selection_edit_ranges = Vec::new();
7037 let mut last_toggled_row = None;
7038 let snapshot = this.buffer.read(cx).read(cx);
7039 let empty_str: Arc<str> = "".into();
7040 let mut suffixes_inserted = Vec::new();
7041
7042 fn comment_prefix_range(
7043 snapshot: &MultiBufferSnapshot,
7044 row: u32,
7045 comment_prefix: &str,
7046 comment_prefix_whitespace: &str,
7047 ) -> Range<Point> {
7048 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
7049
7050 let mut line_bytes = snapshot
7051 .bytes_in_range(start..snapshot.max_point())
7052 .flatten()
7053 .copied();
7054
7055 // If this line currently begins with the line comment prefix, then record
7056 // the range containing the prefix.
7057 if line_bytes
7058 .by_ref()
7059 .take(comment_prefix.len())
7060 .eq(comment_prefix.bytes())
7061 {
7062 // Include any whitespace that matches the comment prefix.
7063 let matching_whitespace_len = line_bytes
7064 .zip(comment_prefix_whitespace.bytes())
7065 .take_while(|(a, b)| a == b)
7066 .count() as u32;
7067 let end = Point::new(
7068 start.row,
7069 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7070 );
7071 start..end
7072 } else {
7073 start..start
7074 }
7075 }
7076
7077 fn comment_suffix_range(
7078 snapshot: &MultiBufferSnapshot,
7079 row: u32,
7080 comment_suffix: &str,
7081 comment_suffix_has_leading_space: bool,
7082 ) -> Range<Point> {
7083 let end = Point::new(row, snapshot.line_len(row));
7084 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7085
7086 let mut line_end_bytes = snapshot
7087 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7088 .flatten()
7089 .copied();
7090
7091 let leading_space_len = if suffix_start_column > 0
7092 && line_end_bytes.next() == Some(b' ')
7093 && comment_suffix_has_leading_space
7094 {
7095 1
7096 } else {
7097 0
7098 };
7099
7100 // If this line currently begins with the line comment prefix, then record
7101 // the range containing the prefix.
7102 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7103 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7104 start..end
7105 } else {
7106 end..end
7107 }
7108 }
7109
7110 // TODO: Handle selections that cross excerpts
7111 for selection in &mut selections {
7112 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7113 let language = if let Some(language) =
7114 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7115 {
7116 language
7117 } else {
7118 continue;
7119 };
7120
7121 selection_edit_ranges.clear();
7122
7123 // If multiple selections contain a given row, avoid processing that
7124 // row more than once.
7125 let mut start_row = selection.start.row;
7126 if last_toggled_row == Some(start_row) {
7127 start_row += 1;
7128 }
7129 let end_row =
7130 if selection.end.row > selection.start.row && selection.end.column == 0 {
7131 selection.end.row - 1
7132 } else {
7133 selection.end.row
7134 };
7135 last_toggled_row = Some(end_row);
7136
7137 if start_row > end_row {
7138 continue;
7139 }
7140
7141 // If the language has line comments, toggle those.
7142 if let Some(full_comment_prefix) = language
7143 .line_comment_prefixes()
7144 .and_then(|prefixes| prefixes.first())
7145 {
7146 // Split the comment prefix's trailing whitespace into a separate string,
7147 // as that portion won't be used for detecting if a line is a comment.
7148 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7149 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7150 let mut all_selection_lines_are_comments = true;
7151
7152 for row in start_row..=end_row {
7153 if start_row < end_row && snapshot.is_line_blank(row) {
7154 continue;
7155 }
7156
7157 let prefix_range = comment_prefix_range(
7158 snapshot.deref(),
7159 row,
7160 comment_prefix,
7161 comment_prefix_whitespace,
7162 );
7163 if prefix_range.is_empty() {
7164 all_selection_lines_are_comments = false;
7165 }
7166 selection_edit_ranges.push(prefix_range);
7167 }
7168
7169 if all_selection_lines_are_comments {
7170 edits.extend(
7171 selection_edit_ranges
7172 .iter()
7173 .cloned()
7174 .map(|range| (range, empty_str.clone())),
7175 );
7176 } else {
7177 let min_column = selection_edit_ranges
7178 .iter()
7179 .map(|r| r.start.column)
7180 .min()
7181 .unwrap_or(0);
7182 edits.extend(selection_edit_ranges.iter().map(|range| {
7183 let position = Point::new(range.start.row, min_column);
7184 (position..position, full_comment_prefix.clone())
7185 }));
7186 }
7187 } else if let Some((full_comment_prefix, comment_suffix)) =
7188 language.block_comment_delimiters()
7189 {
7190 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7191 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7192 let prefix_range = comment_prefix_range(
7193 snapshot.deref(),
7194 start_row,
7195 comment_prefix,
7196 comment_prefix_whitespace,
7197 );
7198 let suffix_range = comment_suffix_range(
7199 snapshot.deref(),
7200 end_row,
7201 comment_suffix.trim_start_matches(' '),
7202 comment_suffix.starts_with(' '),
7203 );
7204
7205 if prefix_range.is_empty() || suffix_range.is_empty() {
7206 edits.push((
7207 prefix_range.start..prefix_range.start,
7208 full_comment_prefix.clone(),
7209 ));
7210 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7211 suffixes_inserted.push((end_row, comment_suffix.len()));
7212 } else {
7213 edits.push((prefix_range, empty_str.clone()));
7214 edits.push((suffix_range, empty_str.clone()));
7215 }
7216 } else {
7217 continue;
7218 }
7219 }
7220
7221 drop(snapshot);
7222 this.buffer.update(cx, |buffer, cx| {
7223 buffer.edit(edits, None, cx);
7224 });
7225
7226 // Adjust selections so that they end before any comment suffixes that
7227 // were inserted.
7228 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7229 let mut selections = this.selections.all::<Point>(cx);
7230 let snapshot = this.buffer.read(cx).read(cx);
7231 for selection in &mut selections {
7232 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7233 match row.cmp(&selection.end.row) {
7234 Ordering::Less => {
7235 suffixes_inserted.next();
7236 continue;
7237 }
7238 Ordering::Greater => break,
7239 Ordering::Equal => {
7240 if selection.end.column == snapshot.line_len(row) {
7241 if selection.is_empty() {
7242 selection.start.column -= suffix_len as u32;
7243 }
7244 selection.end.column -= suffix_len as u32;
7245 }
7246 break;
7247 }
7248 }
7249 }
7250 }
7251
7252 drop(snapshot);
7253 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7254
7255 let selections = this.selections.all::<Point>(cx);
7256 let selections_on_single_row = selections.windows(2).all(|selections| {
7257 selections[0].start.row == selections[1].start.row
7258 && selections[0].end.row == selections[1].end.row
7259 && selections[0].start.row == selections[0].end.row
7260 });
7261 let selections_selecting = selections
7262 .iter()
7263 .any(|selection| selection.start != selection.end);
7264 let advance_downwards = action.advance_downwards
7265 && selections_on_single_row
7266 && !selections_selecting
7267 && this.mode != EditorMode::SingleLine;
7268
7269 if advance_downwards {
7270 let snapshot = this.buffer.read(cx).snapshot(cx);
7271
7272 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7273 s.move_cursors_with(|display_snapshot, display_point, _| {
7274 let mut point = display_point.to_point(display_snapshot);
7275 point.row += 1;
7276 point = snapshot.clip_point(point, Bias::Left);
7277 let display_point = point.to_display_point(display_snapshot);
7278 let goal = SelectionGoal::HorizontalPosition(
7279 display_snapshot
7280 .x_for_display_point(display_point, &text_layout_details)
7281 .into(),
7282 );
7283 (display_point, goal)
7284 })
7285 });
7286 }
7287 });
7288 }
7289
7290 pub fn select_larger_syntax_node(
7291 &mut self,
7292 _: &SelectLargerSyntaxNode,
7293 cx: &mut ViewContext<Self>,
7294 ) {
7295 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7296 let buffer = self.buffer.read(cx).snapshot(cx);
7297 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7298
7299 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7300 let mut selected_larger_node = false;
7301 let new_selections = old_selections
7302 .iter()
7303 .map(|selection| {
7304 let old_range = selection.start..selection.end;
7305 let mut new_range = old_range.clone();
7306 while let Some(containing_range) =
7307 buffer.range_for_syntax_ancestor(new_range.clone())
7308 {
7309 new_range = containing_range;
7310 if !display_map.intersects_fold(new_range.start)
7311 && !display_map.intersects_fold(new_range.end)
7312 {
7313 break;
7314 }
7315 }
7316
7317 selected_larger_node |= new_range != old_range;
7318 Selection {
7319 id: selection.id,
7320 start: new_range.start,
7321 end: new_range.end,
7322 goal: SelectionGoal::None,
7323 reversed: selection.reversed,
7324 }
7325 })
7326 .collect::<Vec<_>>();
7327
7328 if selected_larger_node {
7329 stack.push(old_selections);
7330 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7331 s.select(new_selections);
7332 });
7333 }
7334 self.select_larger_syntax_node_stack = stack;
7335 }
7336
7337 pub fn select_smaller_syntax_node(
7338 &mut self,
7339 _: &SelectSmallerSyntaxNode,
7340 cx: &mut ViewContext<Self>,
7341 ) {
7342 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7343 if let Some(selections) = stack.pop() {
7344 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7345 s.select(selections.to_vec());
7346 });
7347 }
7348 self.select_larger_syntax_node_stack = stack;
7349 }
7350
7351 pub fn move_to_enclosing_bracket(
7352 &mut self,
7353 _: &MoveToEnclosingBracket,
7354 cx: &mut ViewContext<Self>,
7355 ) {
7356 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7357 s.move_offsets_with(|snapshot, selection| {
7358 let Some(enclosing_bracket_ranges) =
7359 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7360 else {
7361 return;
7362 };
7363
7364 let mut best_length = usize::MAX;
7365 let mut best_inside = false;
7366 let mut best_in_bracket_range = false;
7367 let mut best_destination = None;
7368 for (open, close) in enclosing_bracket_ranges {
7369 let close = close.to_inclusive();
7370 let length = close.end() - open.start;
7371 let inside = selection.start >= open.end && selection.end <= *close.start();
7372 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7373 || close.contains(&selection.head());
7374
7375 // If best is next to a bracket and current isn't, skip
7376 if !in_bracket_range && best_in_bracket_range {
7377 continue;
7378 }
7379
7380 // Prefer smaller lengths unless best is inside and current isn't
7381 if length > best_length && (best_inside || !inside) {
7382 continue;
7383 }
7384
7385 best_length = length;
7386 best_inside = inside;
7387 best_in_bracket_range = in_bracket_range;
7388 best_destination = Some(
7389 if close.contains(&selection.start) && close.contains(&selection.end) {
7390 if inside {
7391 open.end
7392 } else {
7393 open.start
7394 }
7395 } else {
7396 if inside {
7397 *close.start()
7398 } else {
7399 *close.end()
7400 }
7401 },
7402 );
7403 }
7404
7405 if let Some(destination) = best_destination {
7406 selection.collapse_to(destination, SelectionGoal::None);
7407 }
7408 })
7409 });
7410 }
7411
7412 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7413 self.end_selection(cx);
7414 self.selection_history.mode = SelectionHistoryMode::Undoing;
7415 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7416 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7417 self.select_next_state = entry.select_next_state;
7418 self.select_prev_state = entry.select_prev_state;
7419 self.add_selections_state = entry.add_selections_state;
7420 self.request_autoscroll(Autoscroll::newest(), cx);
7421 }
7422 self.selection_history.mode = SelectionHistoryMode::Normal;
7423 }
7424
7425 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7426 self.end_selection(cx);
7427 self.selection_history.mode = SelectionHistoryMode::Redoing;
7428 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7429 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7430 self.select_next_state = entry.select_next_state;
7431 self.select_prev_state = entry.select_prev_state;
7432 self.add_selections_state = entry.add_selections_state;
7433 self.request_autoscroll(Autoscroll::newest(), cx);
7434 }
7435 self.selection_history.mode = SelectionHistoryMode::Normal;
7436 }
7437
7438 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7439 self.go_to_diagnostic_impl(Direction::Next, cx)
7440 }
7441
7442 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7443 self.go_to_diagnostic_impl(Direction::Prev, cx)
7444 }
7445
7446 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7447 let buffer = self.buffer.read(cx).snapshot(cx);
7448 let selection = self.selections.newest::<usize>(cx);
7449
7450 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7451 if direction == Direction::Next {
7452 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7453 let (group_id, jump_to) = popover.activation_info();
7454 if self.activate_diagnostics(group_id, cx) {
7455 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7456 let mut new_selection = s.newest_anchor().clone();
7457 new_selection.collapse_to(jump_to, SelectionGoal::None);
7458 s.select_anchors(vec![new_selection.clone()]);
7459 });
7460 }
7461 return;
7462 }
7463 }
7464
7465 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7466 active_diagnostics
7467 .primary_range
7468 .to_offset(&buffer)
7469 .to_inclusive()
7470 });
7471 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7472 if active_primary_range.contains(&selection.head()) {
7473 *active_primary_range.end()
7474 } else {
7475 selection.head()
7476 }
7477 } else {
7478 selection.head()
7479 };
7480
7481 loop {
7482 let mut diagnostics = if direction == Direction::Prev {
7483 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7484 } else {
7485 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7486 };
7487 let group = diagnostics.find_map(|entry| {
7488 if entry.diagnostic.is_primary
7489 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7490 && !entry.range.is_empty()
7491 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7492 && !entry.range.contains(&search_start)
7493 {
7494 Some((entry.range, entry.diagnostic.group_id))
7495 } else {
7496 None
7497 }
7498 });
7499
7500 if let Some((primary_range, group_id)) = group {
7501 if self.activate_diagnostics(group_id, cx) {
7502 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7503 s.select(vec![Selection {
7504 id: selection.id,
7505 start: primary_range.start,
7506 end: primary_range.start,
7507 reversed: false,
7508 goal: SelectionGoal::None,
7509 }]);
7510 });
7511 }
7512 break;
7513 } else {
7514 // Cycle around to the start of the buffer, potentially moving back to the start of
7515 // the currently active diagnostic.
7516 active_primary_range.take();
7517 if direction == Direction::Prev {
7518 if search_start == buffer.len() {
7519 break;
7520 } else {
7521 search_start = buffer.len();
7522 }
7523 } else if search_start == 0 {
7524 break;
7525 } else {
7526 search_start = 0;
7527 }
7528 }
7529 }
7530 }
7531
7532 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7533 let snapshot = self
7534 .display_map
7535 .update(cx, |display_map, cx| display_map.snapshot(cx));
7536 let selection = self.selections.newest::<Point>(cx);
7537
7538 if !self.seek_in_direction(
7539 &snapshot,
7540 selection.head(),
7541 false,
7542 snapshot
7543 .buffer_snapshot
7544 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7545 cx,
7546 ) {
7547 let wrapped_point = Point::zero();
7548 self.seek_in_direction(
7549 &snapshot,
7550 wrapped_point,
7551 true,
7552 snapshot
7553 .buffer_snapshot
7554 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7555 cx,
7556 );
7557 }
7558 }
7559
7560 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7561 let snapshot = self
7562 .display_map
7563 .update(cx, |display_map, cx| display_map.snapshot(cx));
7564 let selection = self.selections.newest::<Point>(cx);
7565
7566 if !self.seek_in_direction(
7567 &snapshot,
7568 selection.head(),
7569 false,
7570 snapshot
7571 .buffer_snapshot
7572 .git_diff_hunks_in_range_rev(0..selection.head().row),
7573 cx,
7574 ) {
7575 let wrapped_point = snapshot.buffer_snapshot.max_point();
7576 self.seek_in_direction(
7577 &snapshot,
7578 wrapped_point,
7579 true,
7580 snapshot
7581 .buffer_snapshot
7582 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7583 cx,
7584 );
7585 }
7586 }
7587
7588 fn seek_in_direction(
7589 &mut self,
7590 snapshot: &DisplaySnapshot,
7591 initial_point: Point,
7592 is_wrapped: bool,
7593 hunks: impl Iterator<Item = DiffHunk<u32>>,
7594 cx: &mut ViewContext<Editor>,
7595 ) -> bool {
7596 let display_point = initial_point.to_display_point(snapshot);
7597 let mut hunks = hunks
7598 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7599 .filter(|hunk| {
7600 if is_wrapped {
7601 true
7602 } else {
7603 !hunk.contains_display_row(display_point.row())
7604 }
7605 })
7606 .dedup();
7607
7608 if let Some(hunk) = hunks.next() {
7609 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7610 let row = hunk.start_display_row();
7611 let point = DisplayPoint::new(row, 0);
7612 s.select_display_ranges([point..point]);
7613 });
7614
7615 true
7616 } else {
7617 false
7618 }
7619 }
7620
7621 pub fn go_to_definition(
7622 &mut self,
7623 _: &GoToDefinition,
7624 cx: &mut ViewContext<Self>,
7625 ) -> Task<Result<bool>> {
7626 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
7627 }
7628
7629 pub fn go_to_implementation(
7630 &mut self,
7631 _: &GoToImplementation,
7632 cx: &mut ViewContext<Self>,
7633 ) -> Task<Result<bool>> {
7634 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
7635 }
7636
7637 pub fn go_to_implementation_split(
7638 &mut self,
7639 _: &GoToImplementationSplit,
7640 cx: &mut ViewContext<Self>,
7641 ) -> Task<Result<bool>> {
7642 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
7643 }
7644
7645 pub fn go_to_type_definition(
7646 &mut self,
7647 _: &GoToTypeDefinition,
7648 cx: &mut ViewContext<Self>,
7649 ) -> Task<Result<bool>> {
7650 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
7651 }
7652
7653 pub fn go_to_definition_split(
7654 &mut self,
7655 _: &GoToDefinitionSplit,
7656 cx: &mut ViewContext<Self>,
7657 ) -> Task<Result<bool>> {
7658 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
7659 }
7660
7661 pub fn go_to_type_definition_split(
7662 &mut self,
7663 _: &GoToTypeDefinitionSplit,
7664 cx: &mut ViewContext<Self>,
7665 ) -> Task<Result<bool>> {
7666 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
7667 }
7668
7669 fn go_to_definition_of_kind(
7670 &mut self,
7671 kind: GotoDefinitionKind,
7672 split: bool,
7673 cx: &mut ViewContext<Self>,
7674 ) -> Task<Result<bool>> {
7675 let Some(workspace) = self.workspace() else {
7676 return Task::ready(Ok(false));
7677 };
7678 let buffer = self.buffer.read(cx);
7679 let head = self.selections.newest::<usize>(cx).head();
7680 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7681 text_anchor
7682 } else {
7683 return Task::ready(Ok(false));
7684 };
7685
7686 let project = workspace.read(cx).project().clone();
7687 let definitions = project.update(cx, |project, cx| match kind {
7688 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7689 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7690 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7691 });
7692
7693 cx.spawn(|editor, mut cx| async move {
7694 let definitions = definitions.await?;
7695 let navigated = editor
7696 .update(&mut cx, |editor, cx| {
7697 editor.navigate_to_hover_links(
7698 Some(kind),
7699 definitions.into_iter().map(HoverLink::Text).collect(),
7700 split,
7701 cx,
7702 )
7703 })?
7704 .await?;
7705 anyhow::Ok(navigated)
7706 })
7707 }
7708
7709 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7710 let position = self.selections.newest_anchor().head();
7711 let Some((buffer, buffer_position)) =
7712 self.buffer.read(cx).text_anchor_for_position(position, cx)
7713 else {
7714 return;
7715 };
7716
7717 cx.spawn(|editor, mut cx| async move {
7718 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7719 editor.update(&mut cx, |_, cx| {
7720 cx.open_url(&url);
7721 })
7722 } else {
7723 Ok(())
7724 }
7725 })
7726 .detach();
7727 }
7728
7729 pub(crate) fn navigate_to_hover_links(
7730 &mut self,
7731 kind: Option<GotoDefinitionKind>,
7732 mut definitions: Vec<HoverLink>,
7733 split: bool,
7734 cx: &mut ViewContext<Editor>,
7735 ) -> Task<Result<bool>> {
7736 // If there is one definition, just open it directly
7737 if definitions.len() == 1 {
7738 let definition = definitions.pop().unwrap();
7739 let target_task = match definition {
7740 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7741 HoverLink::InlayHint(lsp_location, server_id) => {
7742 self.compute_target_location(lsp_location, server_id, cx)
7743 }
7744 HoverLink::Url(url) => {
7745 cx.open_url(&url);
7746 Task::ready(Ok(None))
7747 }
7748 };
7749 cx.spawn(|editor, mut cx| async move {
7750 let target = target_task.await.context("target resolution task")?;
7751 if let Some(target) = target {
7752 editor.update(&mut cx, |editor, cx| {
7753 let Some(workspace) = editor.workspace() else {
7754 return false;
7755 };
7756 let pane = workspace.read(cx).active_pane().clone();
7757
7758 let range = target.range.to_offset(target.buffer.read(cx));
7759 let range = editor.range_for_match(&range);
7760 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7761 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7762 s.select_ranges([range]);
7763 });
7764 } else {
7765 cx.window_context().defer(move |cx| {
7766 let target_editor: View<Self> =
7767 workspace.update(cx, |workspace, cx| {
7768 let pane = if split {
7769 workspace.adjacent_pane(cx)
7770 } else {
7771 workspace.active_pane().clone()
7772 };
7773
7774 workspace.open_project_item(pane, target.buffer.clone(), cx)
7775 });
7776 target_editor.update(cx, |target_editor, cx| {
7777 // When selecting a definition in a different buffer, disable the nav history
7778 // to avoid creating a history entry at the previous cursor location.
7779 pane.update(cx, |pane, _| pane.disable_history());
7780 target_editor.change_selections(
7781 Some(Autoscroll::fit()),
7782 cx,
7783 |s| {
7784 s.select_ranges([range]);
7785 },
7786 );
7787 pane.update(cx, |pane, _| pane.enable_history());
7788 });
7789 });
7790 }
7791 true
7792 })
7793 } else {
7794 Ok(false)
7795 }
7796 })
7797 } else if !definitions.is_empty() {
7798 let replica_id = self.replica_id(cx);
7799 cx.spawn(|editor, mut cx| async move {
7800 let (title, location_tasks, workspace) = editor
7801 .update(&mut cx, |editor, cx| {
7802 let tab_kind = match kind {
7803 Some(GotoDefinitionKind::Implementation) => "Implementations",
7804 _ => "Definitions",
7805 };
7806 let title = definitions
7807 .iter()
7808 .find_map(|definition| match definition {
7809 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7810 let buffer = origin.buffer.read(cx);
7811 format!(
7812 "{} for {}",
7813 tab_kind,
7814 buffer
7815 .text_for_range(origin.range.clone())
7816 .collect::<String>()
7817 )
7818 }),
7819 HoverLink::InlayHint(_, _) => None,
7820 HoverLink::Url(_) => None,
7821 })
7822 .unwrap_or(tab_kind.to_string());
7823 let location_tasks = definitions
7824 .into_iter()
7825 .map(|definition| match definition {
7826 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7827 HoverLink::InlayHint(lsp_location, server_id) => {
7828 editor.compute_target_location(lsp_location, server_id, cx)
7829 }
7830 HoverLink::Url(_) => Task::ready(Ok(None)),
7831 })
7832 .collect::<Vec<_>>();
7833 (title, location_tasks, editor.workspace().clone())
7834 })
7835 .context("location tasks preparation")?;
7836
7837 let locations = futures::future::join_all(location_tasks)
7838 .await
7839 .into_iter()
7840 .filter_map(|location| location.transpose())
7841 .collect::<Result<_>>()
7842 .context("location tasks")?;
7843
7844 let Some(workspace) = workspace else {
7845 return Ok(false);
7846 };
7847 let opened = workspace
7848 .update(&mut cx, |workspace, cx| {
7849 Self::open_locations_in_multibuffer(
7850 workspace, locations, replica_id, title, split, cx,
7851 )
7852 })
7853 .ok();
7854
7855 anyhow::Ok(opened.is_some())
7856 })
7857 } else {
7858 Task::ready(Ok(false))
7859 }
7860 }
7861
7862 fn compute_target_location(
7863 &self,
7864 lsp_location: lsp::Location,
7865 server_id: LanguageServerId,
7866 cx: &mut ViewContext<Editor>,
7867 ) -> Task<anyhow::Result<Option<Location>>> {
7868 let Some(project) = self.project.clone() else {
7869 return Task::Ready(Some(Ok(None)));
7870 };
7871
7872 cx.spawn(move |editor, mut cx| async move {
7873 let location_task = editor.update(&mut cx, |editor, cx| {
7874 project.update(cx, |project, cx| {
7875 let language_server_name =
7876 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7877 project
7878 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7879 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7880 });
7881 language_server_name.map(|language_server_name| {
7882 project.open_local_buffer_via_lsp(
7883 lsp_location.uri.clone(),
7884 server_id,
7885 language_server_name,
7886 cx,
7887 )
7888 })
7889 })
7890 })?;
7891 let location = match location_task {
7892 Some(task) => Some({
7893 let target_buffer_handle = task.await.context("open local buffer")?;
7894 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7895 let target_start = target_buffer
7896 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7897 let target_end = target_buffer
7898 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7899 target_buffer.anchor_after(target_start)
7900 ..target_buffer.anchor_before(target_end)
7901 })?;
7902 Location {
7903 buffer: target_buffer_handle,
7904 range,
7905 }
7906 }),
7907 None => None,
7908 };
7909 Ok(location)
7910 })
7911 }
7912
7913 pub fn find_all_references(
7914 &mut self,
7915 _: &FindAllReferences,
7916 cx: &mut ViewContext<Self>,
7917 ) -> Option<Task<Result<()>>> {
7918 let multi_buffer = self.buffer.read(cx);
7919 let selection = self.selections.newest::<usize>(cx);
7920 let head = selection.head();
7921
7922 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
7923 let head_anchor = multi_buffer_snapshot.anchor_at(
7924 head,
7925 if head < selection.tail() {
7926 Bias::Right
7927 } else {
7928 Bias::Left
7929 },
7930 );
7931 match self
7932 .find_all_references_task_sources
7933 .binary_search_by(|task_anchor| task_anchor.cmp(&head_anchor, &multi_buffer_snapshot))
7934 {
7935 Ok(_) => {
7936 log::info!(
7937 "Ignoring repeated FindAllReferences invocation with the position of already running task"
7938 );
7939 return None;
7940 }
7941 Err(i) => {
7942 self.find_all_references_task_sources.insert(i, head_anchor);
7943 }
7944 }
7945
7946 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
7947 let replica_id = self.replica_id(cx);
7948 let workspace = self.workspace()?;
7949 let project = workspace.read(cx).project().clone();
7950 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7951 let open_task = cx.spawn(|editor, mut cx| async move {
7952 let mut locations = references.await?;
7953 let snapshot = buffer.update(&mut cx, |buffer, _| buffer.snapshot())?;
7954 let head_offset = text::ToOffset::to_offset(&head, &snapshot);
7955
7956 // LSP may return references that contain the item itself we requested `find_all_references` for (eg. rust-analyzer)
7957 // So we will remove it from locations
7958 // If there is only one reference, we will not do this filter cause it may make locations empty
7959 if locations.len() > 1 {
7960 cx.update(|cx| {
7961 locations.retain(|location| {
7962 // fn foo(x : i64) {
7963 // ^
7964 // println!(x);
7965 // }
7966 // It is ok to find reference when caret being at ^ (the end of the word)
7967 // So we turn offset into inclusive to include the end of the word
7968 !location
7969 .range
7970 .to_offset(location.buffer.read(cx))
7971 .to_inclusive()
7972 .contains(&head_offset)
7973 });
7974 })?;
7975 }
7976
7977 if locations.is_empty() {
7978 return Ok(());
7979 }
7980
7981 // If there is one reference, just open it directly
7982 if locations.len() == 1 {
7983 let target = locations.pop().unwrap();
7984
7985 return editor.update(&mut cx, |editor, cx| {
7986 let range = target.range.to_offset(target.buffer.read(cx));
7987 let range = editor.range_for_match(&range);
7988
7989 if Some(&target.buffer) == editor.buffer().read(cx).as_singleton().as_ref() {
7990 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7991 s.select_ranges([range]);
7992 });
7993 } else {
7994 cx.window_context().defer(move |cx| {
7995 let target_editor: View<Self> =
7996 workspace.update(cx, |workspace, cx| {
7997 workspace.open_project_item(
7998 workspace.active_pane().clone(),
7999 target.buffer.clone(),
8000 cx,
8001 )
8002 });
8003 target_editor.update(cx, |target_editor, cx| {
8004 target_editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8005 s.select_ranges([range]);
8006 })
8007 })
8008 })
8009 }
8010 });
8011 }
8012
8013 workspace.update(&mut cx, |workspace, cx| {
8014 let title = locations
8015 .first()
8016 .as_ref()
8017 .map(|location| {
8018 let buffer = location.buffer.read(cx);
8019 format!(
8020 "References to `{}`",
8021 buffer
8022 .text_for_range(location.range.clone())
8023 .collect::<String>()
8024 )
8025 })
8026 .unwrap();
8027 Self::open_locations_in_multibuffer(
8028 workspace, locations, replica_id, title, false, cx,
8029 );
8030 })?;
8031
8032 Ok(())
8033 });
8034 Some(cx.spawn(|editor, mut cx| async move {
8035 open_task.await?;
8036 editor.update(&mut cx, |editor, _| {
8037 if let Ok(i) =
8038 editor
8039 .find_all_references_task_sources
8040 .binary_search_by(|task_anchor| {
8041 task_anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8042 })
8043 {
8044 editor.find_all_references_task_sources.remove(i);
8045 }
8046 })?;
8047 anyhow::Ok(())
8048 }))
8049 }
8050
8051 /// Opens a multibuffer with the given project locations in it
8052 pub fn open_locations_in_multibuffer(
8053 workspace: &mut Workspace,
8054 mut locations: Vec<Location>,
8055 replica_id: ReplicaId,
8056 title: String,
8057 split: bool,
8058 cx: &mut ViewContext<Workspace>,
8059 ) {
8060 // If there are multiple definitions, open them in a multibuffer
8061 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8062 let mut locations = locations.into_iter().peekable();
8063 let mut ranges_to_highlight = Vec::new();
8064 let capability = workspace.project().read(cx).capability();
8065
8066 let excerpt_buffer = cx.new_model(|cx| {
8067 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8068 while let Some(location) = locations.next() {
8069 let buffer = location.buffer.read(cx);
8070 let mut ranges_for_buffer = Vec::new();
8071 let range = location.range.to_offset(buffer);
8072 ranges_for_buffer.push(range.clone());
8073
8074 while let Some(next_location) = locations.peek() {
8075 if next_location.buffer == location.buffer {
8076 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8077 locations.next();
8078 } else {
8079 break;
8080 }
8081 }
8082
8083 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8084 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8085 location.buffer.clone(),
8086 ranges_for_buffer,
8087 1,
8088 cx,
8089 ))
8090 }
8091
8092 multibuffer.with_title(title)
8093 });
8094
8095 let editor = cx.new_view(|cx| {
8096 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8097 });
8098 editor.update(cx, |editor, cx| {
8099 editor.highlight_background::<Self>(
8100 ranges_to_highlight,
8101 |theme| theme.editor_highlighted_line_background,
8102 cx,
8103 );
8104 });
8105 if split {
8106 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
8107 } else {
8108 workspace.add_item_to_active_pane(Box::new(editor), cx);
8109 }
8110 }
8111
8112 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8113 use language::ToOffset as _;
8114
8115 let project = self.project.clone()?;
8116 let selection = self.selections.newest_anchor().clone();
8117 let (cursor_buffer, cursor_buffer_position) = self
8118 .buffer
8119 .read(cx)
8120 .text_anchor_for_position(selection.head(), cx)?;
8121 let (tail_buffer, _) = self
8122 .buffer
8123 .read(cx)
8124 .text_anchor_for_position(selection.tail(), cx)?;
8125 if tail_buffer != cursor_buffer {
8126 return None;
8127 }
8128
8129 let snapshot = cursor_buffer.read(cx).snapshot();
8130 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8131 let prepare_rename = project.update(cx, |project, cx| {
8132 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8133 });
8134 drop(snapshot);
8135
8136 Some(cx.spawn(|this, mut cx| async move {
8137 let rename_range = if let Some(range) = prepare_rename.await? {
8138 Some(range)
8139 } else {
8140 this.update(&mut cx, |this, cx| {
8141 let buffer = this.buffer.read(cx).snapshot(cx);
8142 let mut buffer_highlights = this
8143 .document_highlights_for_position(selection.head(), &buffer)
8144 .filter(|highlight| {
8145 highlight.start.excerpt_id == selection.head().excerpt_id
8146 && highlight.end.excerpt_id == selection.head().excerpt_id
8147 });
8148 buffer_highlights
8149 .next()
8150 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8151 })?
8152 };
8153 if let Some(rename_range) = rename_range {
8154 this.update(&mut cx, |this, cx| {
8155 let snapshot = cursor_buffer.read(cx).snapshot();
8156 let rename_buffer_range = rename_range.to_offset(&snapshot);
8157 let cursor_offset_in_rename_range =
8158 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8159
8160 this.take_rename(false, cx);
8161 let buffer = this.buffer.read(cx).read(cx);
8162 let cursor_offset = selection.head().to_offset(&buffer);
8163 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8164 let rename_end = rename_start + rename_buffer_range.len();
8165 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8166 let mut old_highlight_id = None;
8167 let old_name: Arc<str> = buffer
8168 .chunks(rename_start..rename_end, true)
8169 .map(|chunk| {
8170 if old_highlight_id.is_none() {
8171 old_highlight_id = chunk.syntax_highlight_id;
8172 }
8173 chunk.text
8174 })
8175 .collect::<String>()
8176 .into();
8177
8178 drop(buffer);
8179
8180 // Position the selection in the rename editor so that it matches the current selection.
8181 this.show_local_selections = false;
8182 let rename_editor = cx.new_view(|cx| {
8183 let mut editor = Editor::single_line(cx);
8184 editor.buffer.update(cx, |buffer, cx| {
8185 buffer.edit([(0..0, old_name.clone())], None, cx)
8186 });
8187 editor.select_all(&SelectAll, cx);
8188 editor
8189 });
8190
8191 let ranges = this
8192 .clear_background_highlights::<DocumentHighlightWrite>(cx)
8193 .into_iter()
8194 .flat_map(|(_, ranges)| ranges.into_iter())
8195 .chain(
8196 this.clear_background_highlights::<DocumentHighlightRead>(cx)
8197 .into_iter()
8198 .flat_map(|(_, ranges)| ranges.into_iter()),
8199 )
8200 .collect();
8201
8202 this.highlight_text::<Rename>(
8203 ranges,
8204 HighlightStyle {
8205 fade_out: Some(0.6),
8206 ..Default::default()
8207 },
8208 cx,
8209 );
8210 let rename_focus_handle = rename_editor.focus_handle(cx);
8211 cx.focus(&rename_focus_handle);
8212 let block_id = this.insert_blocks(
8213 [BlockProperties {
8214 style: BlockStyle::Flex,
8215 position: range.start,
8216 height: 1,
8217 render: Arc::new({
8218 let rename_editor = rename_editor.clone();
8219 move |cx: &mut BlockContext| {
8220 let mut text_style = cx.editor_style.text.clone();
8221 if let Some(highlight_style) = old_highlight_id
8222 .and_then(|h| h.style(&cx.editor_style.syntax))
8223 {
8224 text_style = text_style.highlight(highlight_style);
8225 }
8226 div()
8227 .pl(cx.anchor_x)
8228 .child(EditorElement::new(
8229 &rename_editor,
8230 EditorStyle {
8231 background: cx.theme().system().transparent,
8232 local_player: cx.editor_style.local_player,
8233 text: text_style,
8234 scrollbar_width: cx.editor_style.scrollbar_width,
8235 syntax: cx.editor_style.syntax.clone(),
8236 status: cx.editor_style.status.clone(),
8237 inlay_hints_style: HighlightStyle {
8238 color: Some(cx.theme().status().hint),
8239 font_weight: Some(FontWeight::BOLD),
8240 ..HighlightStyle::default()
8241 },
8242 suggestions_style: HighlightStyle {
8243 color: Some(cx.theme().status().predictive),
8244 ..HighlightStyle::default()
8245 },
8246 },
8247 ))
8248 .into_any_element()
8249 }
8250 }),
8251 disposition: BlockDisposition::Below,
8252 }],
8253 Some(Autoscroll::fit()),
8254 cx,
8255 )[0];
8256 this.pending_rename = Some(RenameState {
8257 range,
8258 old_name,
8259 editor: rename_editor,
8260 block_id,
8261 });
8262 })?;
8263 }
8264
8265 Ok(())
8266 }))
8267 }
8268
8269 pub fn confirm_rename(
8270 &mut self,
8271 _: &ConfirmRename,
8272 cx: &mut ViewContext<Self>,
8273 ) -> Option<Task<Result<()>>> {
8274 let rename = self.take_rename(false, cx)?;
8275 let workspace = self.workspace()?;
8276 let (start_buffer, start) = self
8277 .buffer
8278 .read(cx)
8279 .text_anchor_for_position(rename.range.start, cx)?;
8280 let (end_buffer, end) = self
8281 .buffer
8282 .read(cx)
8283 .text_anchor_for_position(rename.range.end, cx)?;
8284 if start_buffer != end_buffer {
8285 return None;
8286 }
8287
8288 let buffer = start_buffer;
8289 let range = start..end;
8290 let old_name = rename.old_name;
8291 let new_name = rename.editor.read(cx).text(cx);
8292
8293 let rename = workspace
8294 .read(cx)
8295 .project()
8296 .clone()
8297 .update(cx, |project, cx| {
8298 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8299 });
8300 let workspace = workspace.downgrade();
8301
8302 Some(cx.spawn(|editor, mut cx| async move {
8303 let project_transaction = rename.await?;
8304 Self::open_project_transaction(
8305 &editor,
8306 workspace,
8307 project_transaction,
8308 format!("Rename: {} → {}", old_name, new_name),
8309 cx.clone(),
8310 )
8311 .await?;
8312
8313 editor.update(&mut cx, |editor, cx| {
8314 editor.refresh_document_highlights(cx);
8315 })?;
8316 Ok(())
8317 }))
8318 }
8319
8320 fn take_rename(
8321 &mut self,
8322 moving_cursor: bool,
8323 cx: &mut ViewContext<Self>,
8324 ) -> Option<RenameState> {
8325 let rename = self.pending_rename.take()?;
8326 if rename.editor.focus_handle(cx).is_focused(cx) {
8327 cx.focus(&self.focus_handle);
8328 }
8329
8330 self.remove_blocks(
8331 [rename.block_id].into_iter().collect(),
8332 Some(Autoscroll::fit()),
8333 cx,
8334 );
8335 self.clear_highlights::<Rename>(cx);
8336 self.show_local_selections = true;
8337
8338 if moving_cursor {
8339 let rename_editor = rename.editor.read(cx);
8340 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8341
8342 // Update the selection to match the position of the selection inside
8343 // the rename editor.
8344 let snapshot = self.buffer.read(cx).read(cx);
8345 let rename_range = rename.range.to_offset(&snapshot);
8346 let cursor_in_editor = snapshot
8347 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8348 .min(rename_range.end);
8349 drop(snapshot);
8350
8351 self.change_selections(None, cx, |s| {
8352 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8353 });
8354 } else {
8355 self.refresh_document_highlights(cx);
8356 }
8357
8358 Some(rename)
8359 }
8360
8361 pub fn pending_rename(&self) -> Option<&RenameState> {
8362 self.pending_rename.as_ref()
8363 }
8364
8365 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8366 let project = match &self.project {
8367 Some(project) => project.clone(),
8368 None => return None,
8369 };
8370
8371 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8372 }
8373
8374 fn perform_format(
8375 &mut self,
8376 project: Model<Project>,
8377 trigger: FormatTrigger,
8378 cx: &mut ViewContext<Self>,
8379 ) -> Task<Result<()>> {
8380 let buffer = self.buffer().clone();
8381 let buffers = buffer.read(cx).all_buffers();
8382
8383 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8384 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8385
8386 cx.spawn(|_, mut cx| async move {
8387 let transaction = futures::select_biased! {
8388 _ = timeout => {
8389 log::warn!("timed out waiting for formatting");
8390 None
8391 }
8392 transaction = format.log_err().fuse() => transaction,
8393 };
8394
8395 buffer
8396 .update(&mut cx, |buffer, cx| {
8397 if let Some(transaction) = transaction {
8398 if !buffer.is_singleton() {
8399 buffer.push_transaction(&transaction.0, cx);
8400 }
8401 }
8402
8403 cx.notify();
8404 })
8405 .ok();
8406
8407 Ok(())
8408 })
8409 }
8410
8411 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8412 if let Some(project) = self.project.clone() {
8413 self.buffer.update(cx, |multi_buffer, cx| {
8414 project.update(cx, |project, cx| {
8415 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8416 });
8417 })
8418 }
8419 }
8420
8421 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8422 cx.show_character_palette();
8423 }
8424
8425 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8426 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8427 let buffer = self.buffer.read(cx).snapshot(cx);
8428 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8429 let is_valid = buffer
8430 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8431 .any(|entry| {
8432 entry.diagnostic.is_primary
8433 && !entry.range.is_empty()
8434 && entry.range.start == primary_range_start
8435 && entry.diagnostic.message == active_diagnostics.primary_message
8436 });
8437
8438 if is_valid != active_diagnostics.is_valid {
8439 active_diagnostics.is_valid = is_valid;
8440 let mut new_styles = HashMap::default();
8441 for (block_id, diagnostic) in &active_diagnostics.blocks {
8442 new_styles.insert(
8443 *block_id,
8444 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8445 );
8446 }
8447 self.display_map
8448 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8449 }
8450 }
8451 }
8452
8453 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8454 self.dismiss_diagnostics(cx);
8455 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8456 let buffer = self.buffer.read(cx).snapshot(cx);
8457
8458 let mut primary_range = None;
8459 let mut primary_message = None;
8460 let mut group_end = Point::zero();
8461 let diagnostic_group = buffer
8462 .diagnostic_group::<Point>(group_id)
8463 .map(|entry| {
8464 if entry.range.end > group_end {
8465 group_end = entry.range.end;
8466 }
8467 if entry.diagnostic.is_primary {
8468 primary_range = Some(entry.range.clone());
8469 primary_message = Some(entry.diagnostic.message.clone());
8470 }
8471 entry
8472 })
8473 .collect::<Vec<_>>();
8474 let primary_range = primary_range?;
8475 let primary_message = primary_message?;
8476 let primary_range =
8477 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8478
8479 let blocks = display_map
8480 .insert_blocks(
8481 diagnostic_group.iter().map(|entry| {
8482 let diagnostic = entry.diagnostic.clone();
8483 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8484 BlockProperties {
8485 style: BlockStyle::Fixed,
8486 position: buffer.anchor_after(entry.range.start),
8487 height: message_height,
8488 render: diagnostic_block_renderer(diagnostic, true),
8489 disposition: BlockDisposition::Below,
8490 }
8491 }),
8492 cx,
8493 )
8494 .into_iter()
8495 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8496 .collect();
8497
8498 Some(ActiveDiagnosticGroup {
8499 primary_range,
8500 primary_message,
8501 blocks,
8502 is_valid: true,
8503 })
8504 });
8505 self.active_diagnostics.is_some()
8506 }
8507
8508 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8509 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8510 self.display_map.update(cx, |display_map, cx| {
8511 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8512 });
8513 cx.notify();
8514 }
8515 }
8516
8517 pub fn set_selections_from_remote(
8518 &mut self,
8519 selections: Vec<Selection<Anchor>>,
8520 pending_selection: Option<Selection<Anchor>>,
8521 cx: &mut ViewContext<Self>,
8522 ) {
8523 let old_cursor_position = self.selections.newest_anchor().head();
8524 self.selections.change_with(cx, |s| {
8525 s.select_anchors(selections);
8526 if let Some(pending_selection) = pending_selection {
8527 s.set_pending(pending_selection, SelectMode::Character);
8528 } else {
8529 s.clear_pending();
8530 }
8531 });
8532 self.selections_did_change(false, &old_cursor_position, cx);
8533 }
8534
8535 fn push_to_selection_history(&mut self) {
8536 self.selection_history.push(SelectionHistoryEntry {
8537 selections: self.selections.disjoint_anchors(),
8538 select_next_state: self.select_next_state.clone(),
8539 select_prev_state: self.select_prev_state.clone(),
8540 add_selections_state: self.add_selections_state.clone(),
8541 });
8542 }
8543
8544 pub fn transact(
8545 &mut self,
8546 cx: &mut ViewContext<Self>,
8547 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8548 ) -> Option<TransactionId> {
8549 self.start_transaction_at(Instant::now(), cx);
8550 update(self, cx);
8551 self.end_transaction_at(Instant::now(), cx)
8552 }
8553
8554 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8555 self.end_selection(cx);
8556 if let Some(tx_id) = self
8557 .buffer
8558 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8559 {
8560 self.selection_history
8561 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8562 cx.emit(EditorEvent::TransactionBegun {
8563 transaction_id: tx_id,
8564 })
8565 }
8566 }
8567
8568 fn end_transaction_at(
8569 &mut self,
8570 now: Instant,
8571 cx: &mut ViewContext<Self>,
8572 ) -> Option<TransactionId> {
8573 if let Some(tx_id) = self
8574 .buffer
8575 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8576 {
8577 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8578 *end_selections = Some(self.selections.disjoint_anchors());
8579 } else {
8580 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8581 }
8582
8583 cx.emit(EditorEvent::Edited);
8584 Some(tx_id)
8585 } else {
8586 None
8587 }
8588 }
8589
8590 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8591 let mut fold_ranges = Vec::new();
8592
8593 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8594
8595 let selections = self.selections.all_adjusted(cx);
8596 for selection in selections {
8597 let range = selection.range().sorted();
8598 let buffer_start_row = range.start.row;
8599
8600 for row in (0..=range.end.row).rev() {
8601 let fold_range = display_map.foldable_range(row);
8602
8603 if let Some(fold_range) = fold_range {
8604 if fold_range.end.row >= buffer_start_row {
8605 fold_ranges.push(fold_range);
8606 if row <= range.start.row {
8607 break;
8608 }
8609 }
8610 }
8611 }
8612 }
8613
8614 self.fold_ranges(fold_ranges, true, cx);
8615 }
8616
8617 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8618 let buffer_row = fold_at.buffer_row;
8619 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8620
8621 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8622 let autoscroll = self
8623 .selections
8624 .all::<Point>(cx)
8625 .iter()
8626 .any(|selection| fold_range.overlaps(&selection.range()));
8627
8628 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8629 }
8630 }
8631
8632 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8633 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8634 let buffer = &display_map.buffer_snapshot;
8635 let selections = self.selections.all::<Point>(cx);
8636 let ranges = selections
8637 .iter()
8638 .map(|s| {
8639 let range = s.display_range(&display_map).sorted();
8640 let mut start = range.start.to_point(&display_map);
8641 let mut end = range.end.to_point(&display_map);
8642 start.column = 0;
8643 end.column = buffer.line_len(end.row);
8644 start..end
8645 })
8646 .collect::<Vec<_>>();
8647
8648 self.unfold_ranges(ranges, true, true, cx);
8649 }
8650
8651 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8652 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8653
8654 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8655 ..Point::new(
8656 unfold_at.buffer_row,
8657 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8658 );
8659
8660 let autoscroll = self
8661 .selections
8662 .all::<Point>(cx)
8663 .iter()
8664 .any(|selection| selection.range().overlaps(&intersection_range));
8665
8666 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8667 }
8668
8669 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8670 let selections = self.selections.all::<Point>(cx);
8671 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8672 let line_mode = self.selections.line_mode;
8673 let ranges = selections.into_iter().map(|s| {
8674 if line_mode {
8675 let start = Point::new(s.start.row, 0);
8676 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8677 start..end
8678 } else {
8679 s.start..s.end
8680 }
8681 });
8682 self.fold_ranges(ranges, true, cx);
8683 }
8684
8685 pub fn fold_ranges<T: ToOffset + Clone>(
8686 &mut self,
8687 ranges: impl IntoIterator<Item = Range<T>>,
8688 auto_scroll: bool,
8689 cx: &mut ViewContext<Self>,
8690 ) {
8691 let mut ranges = ranges.into_iter().peekable();
8692 if ranges.peek().is_some() {
8693 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8694
8695 if auto_scroll {
8696 self.request_autoscroll(Autoscroll::fit(), cx);
8697 }
8698
8699 cx.notify();
8700 }
8701 }
8702
8703 pub fn unfold_ranges<T: ToOffset + Clone>(
8704 &mut self,
8705 ranges: impl IntoIterator<Item = Range<T>>,
8706 inclusive: bool,
8707 auto_scroll: bool,
8708 cx: &mut ViewContext<Self>,
8709 ) {
8710 let mut ranges = ranges.into_iter().peekable();
8711 if ranges.peek().is_some() {
8712 self.display_map
8713 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8714 if auto_scroll {
8715 self.request_autoscroll(Autoscroll::fit(), cx);
8716 }
8717
8718 cx.notify();
8719 }
8720 }
8721
8722 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8723 if hovered != self.gutter_hovered {
8724 self.gutter_hovered = hovered;
8725 cx.notify();
8726 }
8727 }
8728
8729 pub fn insert_blocks(
8730 &mut self,
8731 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8732 autoscroll: Option<Autoscroll>,
8733 cx: &mut ViewContext<Self>,
8734 ) -> Vec<BlockId> {
8735 let blocks = self
8736 .display_map
8737 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8738 if let Some(autoscroll) = autoscroll {
8739 self.request_autoscroll(autoscroll, cx);
8740 }
8741 blocks
8742 }
8743
8744 pub fn replace_blocks(
8745 &mut self,
8746 blocks: HashMap<BlockId, RenderBlock>,
8747 autoscroll: Option<Autoscroll>,
8748 cx: &mut ViewContext<Self>,
8749 ) {
8750 self.display_map
8751 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8752 if let Some(autoscroll) = autoscroll {
8753 self.request_autoscroll(autoscroll, cx);
8754 }
8755 }
8756
8757 pub fn remove_blocks(
8758 &mut self,
8759 block_ids: HashSet<BlockId>,
8760 autoscroll: Option<Autoscroll>,
8761 cx: &mut ViewContext<Self>,
8762 ) {
8763 self.display_map.update(cx, |display_map, cx| {
8764 display_map.remove_blocks(block_ids, cx)
8765 });
8766 if let Some(autoscroll) = autoscroll {
8767 self.request_autoscroll(autoscroll, cx);
8768 }
8769 }
8770
8771 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8772 self.display_map
8773 .update(cx, |map, cx| map.snapshot(cx))
8774 .longest_row()
8775 }
8776
8777 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8778 self.display_map
8779 .update(cx, |map, cx| map.snapshot(cx))
8780 .max_point()
8781 }
8782
8783 pub fn text(&self, cx: &AppContext) -> String {
8784 self.buffer.read(cx).read(cx).text()
8785 }
8786
8787 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8788 let text = self.text(cx);
8789 let text = text.trim();
8790
8791 if text.is_empty() {
8792 return None;
8793 }
8794
8795 Some(text.to_string())
8796 }
8797
8798 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8799 self.transact(cx, |this, cx| {
8800 this.buffer
8801 .read(cx)
8802 .as_singleton()
8803 .expect("you can only call set_text on editors for singleton buffers")
8804 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8805 });
8806 }
8807
8808 pub fn display_text(&self, cx: &mut AppContext) -> String {
8809 self.display_map
8810 .update(cx, |map, cx| map.snapshot(cx))
8811 .text()
8812 }
8813
8814 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8815 let mut wrap_guides = smallvec::smallvec![];
8816
8817 if self.show_wrap_guides == Some(false) {
8818 return wrap_guides;
8819 }
8820
8821 let settings = self.buffer.read(cx).settings_at(0, cx);
8822 if settings.show_wrap_guides {
8823 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8824 wrap_guides.push((soft_wrap as usize, true));
8825 }
8826 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8827 }
8828
8829 wrap_guides
8830 }
8831
8832 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8833 let settings = self.buffer.read(cx).settings_at(0, cx);
8834 let mode = self
8835 .soft_wrap_mode_override
8836 .unwrap_or_else(|| settings.soft_wrap);
8837 match mode {
8838 language_settings::SoftWrap::None => SoftWrap::None,
8839 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8840 language_settings::SoftWrap::PreferredLineLength => {
8841 SoftWrap::Column(settings.preferred_line_length)
8842 }
8843 }
8844 }
8845
8846 pub fn set_soft_wrap_mode(
8847 &mut self,
8848 mode: language_settings::SoftWrap,
8849 cx: &mut ViewContext<Self>,
8850 ) {
8851 self.soft_wrap_mode_override = Some(mode);
8852 cx.notify();
8853 }
8854
8855 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8856 let rem_size = cx.rem_size();
8857 self.display_map.update(cx, |map, cx| {
8858 map.set_font(
8859 style.text.font(),
8860 style.text.font_size.to_pixels(rem_size),
8861 cx,
8862 )
8863 });
8864 self.style = Some(style);
8865 }
8866
8867 #[cfg(any(test, feature = "test-support"))]
8868 pub fn style(&self) -> Option<&EditorStyle> {
8869 self.style.as_ref()
8870 }
8871
8872 // Called by the element. This method is not designed to be called outside of the editor
8873 // element's layout code because it does not notify when rewrapping is computed synchronously.
8874 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8875 self.display_map
8876 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8877 }
8878
8879 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8880 if self.soft_wrap_mode_override.is_some() {
8881 self.soft_wrap_mode_override.take();
8882 } else {
8883 let soft_wrap = match self.soft_wrap_mode(cx) {
8884 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8885 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8886 };
8887 self.soft_wrap_mode_override = Some(soft_wrap);
8888 }
8889 cx.notify();
8890 }
8891
8892 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
8893 let mut editor_settings = EditorSettings::get_global(cx).clone();
8894 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
8895 EditorSettings::override_global(editor_settings, cx);
8896 }
8897
8898 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8899 self.show_gutter = show_gutter;
8900 cx.notify();
8901 }
8902
8903 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8904 self.show_wrap_guides = Some(show_gutter);
8905 cx.notify();
8906 }
8907
8908 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8909 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8910 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8911 cx.reveal_path(&file.abs_path(cx));
8912 }
8913 }
8914 }
8915
8916 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8917 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8918 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8919 if let Some(path) = file.abs_path(cx).to_str() {
8920 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8921 }
8922 }
8923 }
8924 }
8925
8926 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8927 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8928 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8929 if let Some(path) = file.path().to_str() {
8930 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8931 }
8932 }
8933 }
8934 }
8935
8936 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8937 use git::permalink::{build_permalink, BuildPermalinkParams};
8938
8939 let (path, repo) = maybe!({
8940 let project_handle = self.project.as_ref()?.clone();
8941 let project = project_handle.read(cx);
8942 let buffer = self.buffer().read(cx).as_singleton()?;
8943 let path = buffer
8944 .read(cx)
8945 .file()?
8946 .as_local()?
8947 .path()
8948 .to_str()?
8949 .to_string();
8950 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
8951 Some((path, repo))
8952 })
8953 .ok_or_else(|| anyhow!("unable to open git repository"))?;
8954
8955 const REMOTE_NAME: &str = "origin";
8956 let origin_url = repo
8957 .lock()
8958 .remote_url(REMOTE_NAME)
8959 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8960 let sha = repo
8961 .lock()
8962 .head_sha()
8963 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8964 let selections = self.selections.all::<Point>(cx);
8965 let selection = selections.iter().peekable().next();
8966
8967 build_permalink(BuildPermalinkParams {
8968 remote_url: &origin_url,
8969 sha: &sha,
8970 path: &path,
8971 selection: selection.map(|selection| selection.range()),
8972 })
8973 }
8974
8975 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8976 let permalink = self.get_permalink_to_line(cx);
8977
8978 match permalink {
8979 Ok(permalink) => {
8980 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8981 }
8982 Err(err) => {
8983 let message = format!("Failed to copy permalink: {err}");
8984
8985 Err::<(), anyhow::Error>(err).log_err();
8986
8987 if let Some(workspace) = self.workspace() {
8988 workspace.update(cx, |workspace, cx| {
8989 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8990 })
8991 }
8992 }
8993 }
8994 }
8995
8996 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8997 let permalink = self.get_permalink_to_line(cx);
8998
8999 match permalink {
9000 Ok(permalink) => {
9001 cx.open_url(permalink.as_ref());
9002 }
9003 Err(err) => {
9004 let message = format!("Failed to open permalink: {err}");
9005
9006 Err::<(), anyhow::Error>(err).log_err();
9007
9008 if let Some(workspace) = self.workspace() {
9009 workspace.update(cx, |workspace, cx| {
9010 workspace.show_toast(Toast::new(0x45a8978, message), cx)
9011 })
9012 }
9013 }
9014 }
9015 }
9016
9017 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9018 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9019 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9020 pub fn highlight_rows<T: 'static>(
9021 &mut self,
9022 rows: Range<Anchor>,
9023 color: Option<Hsla>,
9024 cx: &mut ViewContext<Self>,
9025 ) {
9026 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9027 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9028 hash_map::Entry::Occupied(o) => {
9029 let row_highlights = o.into_mut();
9030 let existing_highlight_index =
9031 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9032 highlight_range
9033 .start
9034 .cmp(&rows.start, &multi_buffer_snapshot)
9035 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
9036 });
9037 match color {
9038 Some(color) => {
9039 let insert_index = match existing_highlight_index {
9040 Ok(i) => i,
9041 Err(i) => i,
9042 };
9043 row_highlights.insert(
9044 insert_index,
9045 (post_inc(&mut self.highlight_order), rows, color),
9046 );
9047 }
9048 None => {
9049 if let Ok(i) = existing_highlight_index {
9050 row_highlights.remove(i);
9051 }
9052 }
9053 }
9054 }
9055 hash_map::Entry::Vacant(v) => {
9056 if let Some(color) = color {
9057 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9058 }
9059 }
9060 }
9061 }
9062
9063 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9064 pub fn clear_row_highlights<T: 'static>(&mut self) {
9065 self.highlighted_rows.remove(&TypeId::of::<T>());
9066 }
9067
9068 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9069 pub fn highlighted_rows<T: 'static>(
9070 &self,
9071 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
9072 Some(
9073 self.highlighted_rows
9074 .get(&TypeId::of::<T>())?
9075 .iter()
9076 .map(|(_, range, color)| (range, color)),
9077 )
9078 }
9079
9080 // Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9081 // Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9082 pub fn highlighted_display_rows(&mut self, cx: &mut WindowContext) -> BTreeMap<u32, Hsla> {
9083 let snapshot = self.snapshot(cx);
9084 let mut used_highlight_orders = HashMap::default();
9085 self.highlighted_rows
9086 .iter()
9087 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9088 .fold(
9089 BTreeMap::<u32, Hsla>::new(),
9090 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9091 let start_row = anchor_range.start.to_display_point(&snapshot).row();
9092 let end_row = anchor_range.end.to_display_point(&snapshot).row();
9093 for row in start_row..=end_row {
9094 let used_index =
9095 used_highlight_orders.entry(row).or_insert(*highlight_order);
9096 if highlight_order >= used_index {
9097 *used_index = *highlight_order;
9098 unique_rows.insert(row, *hsla);
9099 }
9100 }
9101 unique_rows
9102 },
9103 )
9104 }
9105
9106 pub fn highlight_background<T: 'static>(
9107 &mut self,
9108 ranges: Vec<Range<Anchor>>,
9109 color_fetcher: fn(&ThemeColors) -> Hsla,
9110 cx: &mut ViewContext<Self>,
9111 ) {
9112 let snapshot = self.snapshot(cx);
9113 // this is to try and catch a panic sooner
9114 for range in &ranges {
9115 snapshot
9116 .buffer_snapshot
9117 .summary_for_anchor::<usize>(&range.start);
9118 snapshot
9119 .buffer_snapshot
9120 .summary_for_anchor::<usize>(&range.end);
9121 }
9122
9123 self.background_highlights
9124 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
9125 cx.notify();
9126 }
9127
9128 pub fn clear_background_highlights<T: 'static>(
9129 &mut self,
9130 _cx: &mut ViewContext<Self>,
9131 ) -> Option<BackgroundHighlight> {
9132 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
9133 text_highlights
9134 }
9135
9136 #[cfg(feature = "test-support")]
9137 pub fn all_text_background_highlights(
9138 &mut self,
9139 cx: &mut ViewContext<Self>,
9140 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9141 let snapshot = self.snapshot(cx);
9142 let buffer = &snapshot.buffer_snapshot;
9143 let start = buffer.anchor_before(0);
9144 let end = buffer.anchor_after(buffer.len());
9145 let theme = cx.theme().colors();
9146 self.background_highlights_in_range(start..end, &snapshot, theme)
9147 }
9148
9149 fn document_highlights_for_position<'a>(
9150 &'a self,
9151 position: Anchor,
9152 buffer: &'a MultiBufferSnapshot,
9153 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9154 let read_highlights = self
9155 .background_highlights
9156 .get(&TypeId::of::<DocumentHighlightRead>())
9157 .map(|h| &h.1);
9158 let write_highlights = self
9159 .background_highlights
9160 .get(&TypeId::of::<DocumentHighlightWrite>())
9161 .map(|h| &h.1);
9162 let left_position = position.bias_left(buffer);
9163 let right_position = position.bias_right(buffer);
9164 read_highlights
9165 .into_iter()
9166 .chain(write_highlights)
9167 .flat_map(move |ranges| {
9168 let start_ix = match ranges.binary_search_by(|probe| {
9169 let cmp = probe.end.cmp(&left_position, buffer);
9170 if cmp.is_ge() {
9171 Ordering::Greater
9172 } else {
9173 Ordering::Less
9174 }
9175 }) {
9176 Ok(i) | Err(i) => i,
9177 };
9178
9179 ranges[start_ix..]
9180 .iter()
9181 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9182 })
9183 }
9184
9185 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9186 self.background_highlights
9187 .get(&TypeId::of::<T>())
9188 .map_or(false, |(_, highlights)| !highlights.is_empty())
9189 }
9190
9191 pub fn background_highlights_in_range(
9192 &self,
9193 search_range: Range<Anchor>,
9194 display_snapshot: &DisplaySnapshot,
9195 theme: &ThemeColors,
9196 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9197 let mut results = Vec::new();
9198 for (color_fetcher, ranges) in self.background_highlights.values() {
9199 let color = color_fetcher(theme);
9200 let start_ix = match ranges.binary_search_by(|probe| {
9201 let cmp = probe
9202 .end
9203 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9204 if cmp.is_gt() {
9205 Ordering::Greater
9206 } else {
9207 Ordering::Less
9208 }
9209 }) {
9210 Ok(i) | Err(i) => i,
9211 };
9212 for range in &ranges[start_ix..] {
9213 if range
9214 .start
9215 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9216 .is_ge()
9217 {
9218 break;
9219 }
9220
9221 let start = range.start.to_display_point(&display_snapshot);
9222 let end = range.end.to_display_point(&display_snapshot);
9223 results.push((start..end, color))
9224 }
9225 }
9226 results
9227 }
9228
9229 pub fn background_highlight_row_ranges<T: 'static>(
9230 &self,
9231 search_range: Range<Anchor>,
9232 display_snapshot: &DisplaySnapshot,
9233 count: usize,
9234 ) -> Vec<RangeInclusive<DisplayPoint>> {
9235 let mut results = Vec::new();
9236 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9237 return vec![];
9238 };
9239
9240 let start_ix = match ranges.binary_search_by(|probe| {
9241 let cmp = probe
9242 .end
9243 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9244 if cmp.is_gt() {
9245 Ordering::Greater
9246 } else {
9247 Ordering::Less
9248 }
9249 }) {
9250 Ok(i) | Err(i) => i,
9251 };
9252 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9253 if let (Some(start_display), Some(end_display)) = (start, end) {
9254 results.push(
9255 start_display.to_display_point(display_snapshot)
9256 ..=end_display.to_display_point(display_snapshot),
9257 );
9258 }
9259 };
9260 let mut start_row: Option<Point> = None;
9261 let mut end_row: Option<Point> = None;
9262 if ranges.len() > count {
9263 return Vec::new();
9264 }
9265 for range in &ranges[start_ix..] {
9266 if range
9267 .start
9268 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9269 .is_ge()
9270 {
9271 break;
9272 }
9273 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9274 if let Some(current_row) = &end_row {
9275 if end.row == current_row.row {
9276 continue;
9277 }
9278 }
9279 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9280 if start_row.is_none() {
9281 assert_eq!(end_row, None);
9282 start_row = Some(start);
9283 end_row = Some(end);
9284 continue;
9285 }
9286 if let Some(current_end) = end_row.as_mut() {
9287 if start.row > current_end.row + 1 {
9288 push_region(start_row, end_row);
9289 start_row = Some(start);
9290 end_row = Some(end);
9291 } else {
9292 // Merge two hunks.
9293 *current_end = end;
9294 }
9295 } else {
9296 unreachable!();
9297 }
9298 }
9299 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9300 push_region(start_row, end_row);
9301 results
9302 }
9303
9304 /// Get the text ranges corresponding to the redaction query
9305 pub fn redacted_ranges(
9306 &self,
9307 search_range: Range<Anchor>,
9308 display_snapshot: &DisplaySnapshot,
9309 cx: &WindowContext,
9310 ) -> Vec<Range<DisplayPoint>> {
9311 display_snapshot
9312 .buffer_snapshot
9313 .redacted_ranges(search_range, |file| {
9314 if let Some(file) = file {
9315 file.is_private()
9316 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
9317 } else {
9318 false
9319 }
9320 })
9321 .map(|range| {
9322 range.start.to_display_point(display_snapshot)
9323 ..range.end.to_display_point(display_snapshot)
9324 })
9325 .collect()
9326 }
9327
9328 pub fn highlight_text<T: 'static>(
9329 &mut self,
9330 ranges: Vec<Range<Anchor>>,
9331 style: HighlightStyle,
9332 cx: &mut ViewContext<Self>,
9333 ) {
9334 self.display_map.update(cx, |map, _| {
9335 map.highlight_text(TypeId::of::<T>(), ranges, style)
9336 });
9337 cx.notify();
9338 }
9339
9340 pub(crate) fn highlight_inlays<T: 'static>(
9341 &mut self,
9342 highlights: Vec<InlayHighlight>,
9343 style: HighlightStyle,
9344 cx: &mut ViewContext<Self>,
9345 ) {
9346 self.display_map.update(cx, |map, _| {
9347 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9348 });
9349 cx.notify();
9350 }
9351
9352 pub fn text_highlights<'a, T: 'static>(
9353 &'a self,
9354 cx: &'a AppContext,
9355 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9356 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9357 }
9358
9359 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9360 let cleared = self
9361 .display_map
9362 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9363 if cleared {
9364 cx.notify();
9365 }
9366 }
9367
9368 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9369 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9370 && self.focus_handle.is_focused(cx)
9371 }
9372
9373 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9374 cx.notify();
9375 }
9376
9377 fn on_buffer_event(
9378 &mut self,
9379 multibuffer: Model<MultiBuffer>,
9380 event: &multi_buffer::Event,
9381 cx: &mut ViewContext<Self>,
9382 ) {
9383 match event {
9384 multi_buffer::Event::Edited {
9385 singleton_buffer_edited,
9386 } => {
9387 self.refresh_active_diagnostics(cx);
9388 self.refresh_code_actions(cx);
9389 if self.has_active_copilot_suggestion(cx) {
9390 self.update_visible_copilot_suggestion(cx);
9391 }
9392 cx.emit(EditorEvent::BufferEdited);
9393 cx.emit(SearchEvent::MatchesInvalidated);
9394
9395 if *singleton_buffer_edited {
9396 if let Some(project) = &self.project {
9397 let project = project.read(cx);
9398 let languages_affected = multibuffer
9399 .read(cx)
9400 .all_buffers()
9401 .into_iter()
9402 .filter_map(|buffer| {
9403 let buffer = buffer.read(cx);
9404 let language = buffer.language()?;
9405 if project.is_local()
9406 && project.language_servers_for_buffer(buffer, cx).count() == 0
9407 {
9408 None
9409 } else {
9410 Some(language)
9411 }
9412 })
9413 .cloned()
9414 .collect::<HashSet<_>>();
9415 if !languages_affected.is_empty() {
9416 self.refresh_inlay_hints(
9417 InlayHintRefreshReason::BufferEdited(languages_affected),
9418 cx,
9419 );
9420 }
9421 }
9422 }
9423
9424 let Some(project) = &self.project else { return };
9425 let telemetry = project.read(cx).client().telemetry().clone();
9426 telemetry.log_edit_event("editor");
9427 }
9428 multi_buffer::Event::ExcerptsAdded {
9429 buffer,
9430 predecessor,
9431 excerpts,
9432 } => {
9433 cx.emit(EditorEvent::ExcerptsAdded {
9434 buffer: buffer.clone(),
9435 predecessor: *predecessor,
9436 excerpts: excerpts.clone(),
9437 });
9438 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9439 }
9440 multi_buffer::Event::ExcerptsRemoved { ids } => {
9441 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9442 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9443 }
9444 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9445 multi_buffer::Event::LanguageChanged => {
9446 cx.emit(EditorEvent::Reparsed);
9447 cx.notify();
9448 }
9449 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9450 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9451 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9452 cx.emit(EditorEvent::TitleChanged)
9453 }
9454 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
9455 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9456 multi_buffer::Event::DiagnosticsUpdated => {
9457 self.refresh_active_diagnostics(cx);
9458 }
9459 _ => {}
9460 };
9461 }
9462
9463 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9464 cx.notify();
9465 }
9466
9467 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9468 self.refresh_copilot_suggestions(true, cx);
9469 self.refresh_inlay_hints(
9470 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9471 self.selections.newest_anchor().head(),
9472 &self.buffer.read(cx).snapshot(cx),
9473 cx,
9474 )),
9475 cx,
9476 );
9477 let editor_settings = EditorSettings::get_global(cx);
9478 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9479 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9480 cx.notify();
9481 }
9482
9483 pub fn set_searchable(&mut self, searchable: bool) {
9484 self.searchable = searchable;
9485 }
9486
9487 pub fn searchable(&self) -> bool {
9488 self.searchable
9489 }
9490
9491 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9492 self.open_excerpts_common(true, cx)
9493 }
9494
9495 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9496 self.open_excerpts_common(false, cx)
9497 }
9498
9499 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9500 let buffer = self.buffer.read(cx);
9501 if buffer.is_singleton() {
9502 cx.propagate();
9503 return;
9504 }
9505
9506 let Some(workspace) = self.workspace() else {
9507 cx.propagate();
9508 return;
9509 };
9510
9511 let mut new_selections_by_buffer = HashMap::default();
9512 for selection in self.selections.all::<usize>(cx) {
9513 for (buffer, mut range, _) in
9514 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9515 {
9516 if selection.reversed {
9517 mem::swap(&mut range.start, &mut range.end);
9518 }
9519 new_selections_by_buffer
9520 .entry(buffer)
9521 .or_insert(Vec::new())
9522 .push(range)
9523 }
9524 }
9525
9526 // We defer the pane interaction because we ourselves are a workspace item
9527 // and activating a new item causes the pane to call a method on us reentrantly,
9528 // which panics if we're on the stack.
9529 cx.window_context().defer(move |cx| {
9530 workspace.update(cx, |workspace, cx| {
9531 let pane = if split {
9532 workspace.adjacent_pane(cx)
9533 } else {
9534 workspace.active_pane().clone()
9535 };
9536
9537 for (buffer, ranges) in new_selections_by_buffer {
9538 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9539 editor.update(cx, |editor, cx| {
9540 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9541 s.select_ranges(ranges);
9542 });
9543 });
9544 }
9545 })
9546 });
9547 }
9548
9549 fn jump(
9550 &mut self,
9551 path: ProjectPath,
9552 position: Point,
9553 anchor: language::Anchor,
9554 cx: &mut ViewContext<Self>,
9555 ) {
9556 let workspace = self.workspace();
9557 cx.spawn(|_, mut cx| async move {
9558 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9559 let editor = workspace.update(&mut cx, |workspace, cx| {
9560 workspace.open_path(path, None, true, cx)
9561 })?;
9562 let editor = editor
9563 .await?
9564 .downcast::<Editor>()
9565 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9566 .downgrade();
9567 editor.update(&mut cx, |editor, cx| {
9568 let buffer = editor
9569 .buffer()
9570 .read(cx)
9571 .as_singleton()
9572 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9573 let buffer = buffer.read(cx);
9574 let cursor = if buffer.can_resolve(&anchor) {
9575 language::ToPoint::to_point(&anchor, buffer)
9576 } else {
9577 buffer.clip_point(position, Bias::Left)
9578 };
9579
9580 let nav_history = editor.nav_history.take();
9581 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9582 s.select_ranges([cursor..cursor]);
9583 });
9584 editor.nav_history = nav_history;
9585
9586 anyhow::Ok(())
9587 })??;
9588
9589 anyhow::Ok(())
9590 })
9591 .detach_and_log_err(cx);
9592 }
9593
9594 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9595 let snapshot = self.buffer.read(cx).read(cx);
9596 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9597 Some(
9598 ranges
9599 .iter()
9600 .map(move |range| {
9601 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9602 })
9603 .collect(),
9604 )
9605 }
9606
9607 fn selection_replacement_ranges(
9608 &self,
9609 range: Range<OffsetUtf16>,
9610 cx: &AppContext,
9611 ) -> Vec<Range<OffsetUtf16>> {
9612 let selections = self.selections.all::<OffsetUtf16>(cx);
9613 let newest_selection = selections
9614 .iter()
9615 .max_by_key(|selection| selection.id)
9616 .unwrap();
9617 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9618 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9619 let snapshot = self.buffer.read(cx).read(cx);
9620 selections
9621 .into_iter()
9622 .map(|mut selection| {
9623 selection.start.0 =
9624 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9625 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9626 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9627 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9628 })
9629 .collect()
9630 }
9631
9632 fn report_copilot_event(
9633 &self,
9634 suggestion_id: Option<String>,
9635 suggestion_accepted: bool,
9636 cx: &AppContext,
9637 ) {
9638 let Some(project) = &self.project else { return };
9639
9640 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
9641 let file_extension = self
9642 .buffer
9643 .read(cx)
9644 .as_singleton()
9645 .and_then(|b| b.read(cx).file())
9646 .and_then(|file| Path::new(file.file_name(cx)).extension())
9647 .and_then(|e| e.to_str())
9648 .map(|a| a.to_string());
9649
9650 let telemetry = project.read(cx).client().telemetry().clone();
9651
9652 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
9653 }
9654
9655 fn report_editor_event(
9656 &self,
9657 operation: &'static str,
9658 file_extension: Option<String>,
9659 cx: &AppContext,
9660 ) {
9661 if cfg!(any(test, feature = "test-support")) {
9662 return;
9663 }
9664
9665 let Some(project) = &self.project else { return };
9666
9667 // If None, we are in a file without an extension
9668 let file = self
9669 .buffer
9670 .read(cx)
9671 .as_singleton()
9672 .and_then(|b| b.read(cx).file());
9673 let file_extension = file_extension.or(file
9674 .as_ref()
9675 .and_then(|file| Path::new(file.file_name(cx)).extension())
9676 .and_then(|e| e.to_str())
9677 .map(|a| a.to_string()));
9678
9679 let vim_mode = cx
9680 .global::<SettingsStore>()
9681 .raw_user_settings()
9682 .get("vim_mode")
9683 == Some(&serde_json::Value::Bool(true));
9684 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9685 let copilot_enabled_for_language = self
9686 .buffer
9687 .read(cx)
9688 .settings_at(0, cx)
9689 .show_copilot_suggestions;
9690
9691 let telemetry = project.read(cx).client().telemetry().clone();
9692 telemetry.report_editor_event(
9693 file_extension,
9694 vim_mode,
9695 operation,
9696 copilot_enabled,
9697 copilot_enabled_for_language,
9698 )
9699 }
9700
9701 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9702 /// with each line being an array of {text, highlight} objects.
9703 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9704 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9705 return;
9706 };
9707
9708 #[derive(Serialize)]
9709 struct Chunk<'a> {
9710 text: String,
9711 highlight: Option<&'a str>,
9712 }
9713
9714 let snapshot = buffer.read(cx).snapshot();
9715 let range = self
9716 .selected_text_range(cx)
9717 .and_then(|selected_range| {
9718 if selected_range.is_empty() {
9719 None
9720 } else {
9721 Some(selected_range)
9722 }
9723 })
9724 .unwrap_or_else(|| 0..snapshot.len());
9725
9726 let chunks = snapshot.chunks(range, true);
9727 let mut lines = Vec::new();
9728 let mut line: VecDeque<Chunk> = VecDeque::new();
9729
9730 let Some(style) = self.style.as_ref() else {
9731 return;
9732 };
9733
9734 for chunk in chunks {
9735 let highlight = chunk
9736 .syntax_highlight_id
9737 .and_then(|id| id.name(&style.syntax));
9738 let mut chunk_lines = chunk.text.split('\n').peekable();
9739 while let Some(text) = chunk_lines.next() {
9740 let mut merged_with_last_token = false;
9741 if let Some(last_token) = line.back_mut() {
9742 if last_token.highlight == highlight {
9743 last_token.text.push_str(text);
9744 merged_with_last_token = true;
9745 }
9746 }
9747
9748 if !merged_with_last_token {
9749 line.push_back(Chunk {
9750 text: text.into(),
9751 highlight,
9752 });
9753 }
9754
9755 if chunk_lines.peek().is_some() {
9756 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9757 line.pop_front();
9758 }
9759 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9760 line.pop_back();
9761 }
9762
9763 lines.push(mem::take(&mut line));
9764 }
9765 }
9766 }
9767
9768 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9769 return;
9770 };
9771 cx.write_to_clipboard(ClipboardItem::new(lines));
9772 }
9773
9774 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9775 &self.inlay_hint_cache
9776 }
9777
9778 pub fn replay_insert_event(
9779 &mut self,
9780 text: &str,
9781 relative_utf16_range: Option<Range<isize>>,
9782 cx: &mut ViewContext<Self>,
9783 ) {
9784 if !self.input_enabled {
9785 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9786 return;
9787 }
9788 if let Some(relative_utf16_range) = relative_utf16_range {
9789 let selections = self.selections.all::<OffsetUtf16>(cx);
9790 self.change_selections(None, cx, |s| {
9791 let new_ranges = selections.into_iter().map(|range| {
9792 let start = OffsetUtf16(
9793 range
9794 .head()
9795 .0
9796 .saturating_add_signed(relative_utf16_range.start),
9797 );
9798 let end = OffsetUtf16(
9799 range
9800 .head()
9801 .0
9802 .saturating_add_signed(relative_utf16_range.end),
9803 );
9804 start..end
9805 });
9806 s.select_ranges(new_ranges);
9807 });
9808 }
9809
9810 self.handle_input(text, cx);
9811 }
9812
9813 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9814 let Some(project) = self.project.as_ref() else {
9815 return false;
9816 };
9817 let project = project.read(cx);
9818
9819 let mut supports = false;
9820 self.buffer().read(cx).for_each_buffer(|buffer| {
9821 if !supports {
9822 supports = project
9823 .language_servers_for_buffer(buffer.read(cx), cx)
9824 .any(
9825 |(_, server)| match server.capabilities().inlay_hint_provider {
9826 Some(lsp::OneOf::Left(enabled)) => enabled,
9827 Some(lsp::OneOf::Right(_)) => true,
9828 None => false,
9829 },
9830 )
9831 }
9832 });
9833 supports
9834 }
9835
9836 pub fn focus(&self, cx: &mut WindowContext) {
9837 cx.focus(&self.focus_handle)
9838 }
9839
9840 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9841 self.focus_handle.is_focused(cx)
9842 }
9843
9844 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9845 cx.emit(EditorEvent::Focused);
9846
9847 if let Some(rename) = self.pending_rename.as_ref() {
9848 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9849 cx.focus(&rename_editor_focus_handle);
9850 } else {
9851 self.blink_manager.update(cx, BlinkManager::enable);
9852 self.show_cursor_names(cx);
9853 self.buffer.update(cx, |buffer, cx| {
9854 buffer.finalize_last_transaction(cx);
9855 if self.leader_peer_id.is_none() {
9856 buffer.set_active_selections(
9857 &self.selections.disjoint_anchors(),
9858 self.selections.line_mode,
9859 self.cursor_shape,
9860 cx,
9861 );
9862 }
9863 });
9864 }
9865 }
9866
9867 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9868 self.blink_manager.update(cx, BlinkManager::disable);
9869 self.buffer
9870 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9871 self.hide_context_menu(cx);
9872 hide_hover(self, cx);
9873 cx.emit(EditorEvent::Blurred);
9874 cx.notify();
9875 }
9876
9877 pub fn register_action<A: Action>(
9878 &mut self,
9879 listener: impl Fn(&A, &mut WindowContext) + 'static,
9880 ) -> &mut Self {
9881 let listener = Arc::new(listener);
9882
9883 self.editor_actions.push(Box::new(move |cx| {
9884 let _view = cx.view().clone();
9885 let cx = cx.window_context();
9886 let listener = listener.clone();
9887 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9888 let action = action.downcast_ref().unwrap();
9889 if phase == DispatchPhase::Bubble {
9890 listener(action, cx)
9891 }
9892 })
9893 }));
9894 self
9895 }
9896}
9897
9898pub trait CollaborationHub {
9899 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9900 fn user_participant_indices<'a>(
9901 &self,
9902 cx: &'a AppContext,
9903 ) -> &'a HashMap<u64, ParticipantIndex>;
9904 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9905}
9906
9907impl CollaborationHub for Model<Project> {
9908 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9909 self.read(cx).collaborators()
9910 }
9911
9912 fn user_participant_indices<'a>(
9913 &self,
9914 cx: &'a AppContext,
9915 ) -> &'a HashMap<u64, ParticipantIndex> {
9916 self.read(cx).user_store().read(cx).participant_indices()
9917 }
9918
9919 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9920 let this = self.read(cx);
9921 let user_ids = this.collaborators().values().map(|c| c.user_id);
9922 this.user_store().read_with(cx, |user_store, cx| {
9923 user_store.participant_names(user_ids, cx)
9924 })
9925 }
9926}
9927
9928pub trait CompletionProvider {
9929 fn completions(
9930 &self,
9931 buffer: &Model<Buffer>,
9932 buffer_position: text::Anchor,
9933 cx: &mut ViewContext<Editor>,
9934 ) -> Task<Result<Vec<Completion>>>;
9935
9936 fn resolve_completions(
9937 &self,
9938 completion_indices: Vec<usize>,
9939 completions: Arc<RwLock<Box<[Completion]>>>,
9940 cx: &mut ViewContext<Editor>,
9941 ) -> Task<Result<bool>>;
9942
9943 fn apply_additional_edits_for_completion(
9944 &self,
9945 buffer: Model<Buffer>,
9946 completion: Completion,
9947 push_to_history: bool,
9948 cx: &mut ViewContext<Editor>,
9949 ) -> Task<Result<Option<language::Transaction>>>;
9950}
9951
9952impl CompletionProvider for Model<Project> {
9953 fn completions(
9954 &self,
9955 buffer: &Model<Buffer>,
9956 buffer_position: text::Anchor,
9957 cx: &mut ViewContext<Editor>,
9958 ) -> Task<Result<Vec<Completion>>> {
9959 self.update(cx, |project, cx| {
9960 project.completions(&buffer, buffer_position, cx)
9961 })
9962 }
9963
9964 fn resolve_completions(
9965 &self,
9966 completion_indices: Vec<usize>,
9967 completions: Arc<RwLock<Box<[Completion]>>>,
9968 cx: &mut ViewContext<Editor>,
9969 ) -> Task<Result<bool>> {
9970 self.update(cx, |project, cx| {
9971 project.resolve_completions(completion_indices, completions, cx)
9972 })
9973 }
9974
9975 fn apply_additional_edits_for_completion(
9976 &self,
9977 buffer: Model<Buffer>,
9978 completion: Completion,
9979 push_to_history: bool,
9980 cx: &mut ViewContext<Editor>,
9981 ) -> Task<Result<Option<language::Transaction>>> {
9982 self.update(cx, |project, cx| {
9983 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9984 })
9985 }
9986}
9987
9988fn inlay_hint_settings(
9989 location: Anchor,
9990 snapshot: &MultiBufferSnapshot,
9991 cx: &mut ViewContext<'_, Editor>,
9992) -> InlayHintSettings {
9993 let file = snapshot.file_at(location);
9994 let language = snapshot.language_at(location);
9995 let settings = all_language_settings(file, cx);
9996 settings
9997 .language(language.map(|l| l.name()).as_deref())
9998 .inlay_hints
9999}
10000
10001fn consume_contiguous_rows(
10002 contiguous_row_selections: &mut Vec<Selection<Point>>,
10003 selection: &Selection<Point>,
10004 display_map: &DisplaySnapshot,
10005 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10006) -> (u32, u32) {
10007 contiguous_row_selections.push(selection.clone());
10008 let start_row = selection.start.row;
10009 let mut end_row = ending_row(selection, display_map);
10010
10011 while let Some(next_selection) = selections.peek() {
10012 if next_selection.start.row <= end_row {
10013 end_row = ending_row(next_selection, display_map);
10014 contiguous_row_selections.push(selections.next().unwrap().clone());
10015 } else {
10016 break;
10017 }
10018 }
10019 (start_row, end_row)
10020}
10021
10022fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
10023 if next_selection.end.column > 0 || next_selection.is_empty() {
10024 display_map.next_line_boundary(next_selection.end).0.row + 1
10025 } else {
10026 next_selection.end.row
10027 }
10028}
10029
10030impl EditorSnapshot {
10031 pub fn remote_selections_in_range<'a>(
10032 &'a self,
10033 range: &'a Range<Anchor>,
10034 collaboration_hub: &dyn CollaborationHub,
10035 cx: &'a AppContext,
10036 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10037 let participant_names = collaboration_hub.user_names(cx);
10038 let participant_indices = collaboration_hub.user_participant_indices(cx);
10039 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10040 let collaborators_by_replica_id = collaborators_by_peer_id
10041 .iter()
10042 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10043 .collect::<HashMap<_, _>>();
10044 self.buffer_snapshot
10045 .remote_selections_in_range(range)
10046 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10047 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10048 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10049 let user_name = participant_names.get(&collaborator.user_id).cloned();
10050 Some(RemoteSelection {
10051 replica_id,
10052 selection,
10053 cursor_shape,
10054 line_mode,
10055 participant_index,
10056 peer_id: collaborator.peer_id,
10057 user_name,
10058 })
10059 })
10060 }
10061
10062 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10063 self.display_snapshot.buffer_snapshot.language_at(position)
10064 }
10065
10066 pub fn is_focused(&self) -> bool {
10067 self.is_focused
10068 }
10069
10070 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10071 self.placeholder_text.as_ref()
10072 }
10073
10074 pub fn scroll_position(&self) -> gpui::Point<f32> {
10075 self.scroll_anchor.scroll_position(&self.display_snapshot)
10076 }
10077
10078 pub fn gutter_dimensions(
10079 &self,
10080 font_id: FontId,
10081 font_size: Pixels,
10082 em_width: Pixels,
10083 max_line_number_width: Pixels,
10084 cx: &AppContext,
10085 ) -> GutterDimensions {
10086 if !self.show_gutter {
10087 return GutterDimensions::default();
10088 }
10089 let descent = cx.text_system().descent(font_id, font_size);
10090
10091 let show_git_gutter = matches!(
10092 ProjectSettings::get_global(cx).git.git_gutter,
10093 Some(GitGutterSetting::TrackedFiles)
10094 );
10095 let gutter_settings = EditorSettings::get_global(cx).gutter;
10096
10097 let line_gutter_width = if gutter_settings.line_numbers {
10098 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10099 let min_width_for_number_on_gutter = em_width * 4.0;
10100 max_line_number_width.max(min_width_for_number_on_gutter)
10101 } else {
10102 0.0.into()
10103 };
10104
10105 let left_padding = if gutter_settings.code_actions {
10106 em_width * 3.0
10107 } else if show_git_gutter && gutter_settings.line_numbers {
10108 em_width * 2.0
10109 } else if show_git_gutter || gutter_settings.line_numbers {
10110 em_width
10111 } else {
10112 px(0.)
10113 };
10114
10115 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
10116 em_width * 4.0
10117 } else if gutter_settings.folds {
10118 em_width * 3.0
10119 } else if gutter_settings.line_numbers {
10120 em_width
10121 } else {
10122 px(0.)
10123 };
10124
10125 GutterDimensions {
10126 left_padding,
10127 right_padding,
10128 width: line_gutter_width + left_padding + right_padding,
10129 margin: -descent,
10130 }
10131 }
10132}
10133
10134impl Deref for EditorSnapshot {
10135 type Target = DisplaySnapshot;
10136
10137 fn deref(&self) -> &Self::Target {
10138 &self.display_snapshot
10139 }
10140}
10141
10142#[derive(Clone, Debug, PartialEq, Eq)]
10143pub enum EditorEvent {
10144 InputIgnored {
10145 text: Arc<str>,
10146 },
10147 InputHandled {
10148 utf16_range_to_replace: Option<Range<isize>>,
10149 text: Arc<str>,
10150 },
10151 ExcerptsAdded {
10152 buffer: Model<Buffer>,
10153 predecessor: ExcerptId,
10154 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10155 },
10156 ExcerptsRemoved {
10157 ids: Vec<ExcerptId>,
10158 },
10159 BufferEdited,
10160 Edited,
10161 Reparsed,
10162 Focused,
10163 Blurred,
10164 DirtyChanged,
10165 Saved,
10166 TitleChanged,
10167 DiffBaseChanged,
10168 SelectionsChanged {
10169 local: bool,
10170 },
10171 ScrollPositionChanged {
10172 local: bool,
10173 autoscroll: bool,
10174 },
10175 Closed,
10176 TransactionUndone {
10177 transaction_id: clock::Lamport,
10178 },
10179 TransactionBegun {
10180 transaction_id: clock::Lamport,
10181 },
10182}
10183
10184impl EventEmitter<EditorEvent> for Editor {}
10185
10186impl FocusableView for Editor {
10187 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10188 self.focus_handle.clone()
10189 }
10190}
10191
10192impl Render for Editor {
10193 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10194 let settings = ThemeSettings::get_global(cx);
10195 let text_style = match self.mode {
10196 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10197 color: cx.theme().colors().editor_foreground,
10198 font_family: settings.ui_font.family.clone(),
10199 font_features: settings.ui_font.features,
10200 font_size: rems(0.875).into(),
10201 font_weight: FontWeight::NORMAL,
10202 font_style: FontStyle::Normal,
10203 line_height: relative(settings.buffer_line_height.value()),
10204 background_color: None,
10205 underline: None,
10206 strikethrough: None,
10207 white_space: WhiteSpace::Normal,
10208 },
10209
10210 EditorMode::Full => TextStyle {
10211 color: cx.theme().colors().editor_foreground,
10212 font_family: settings.buffer_font.family.clone(),
10213 font_features: settings.buffer_font.features,
10214 font_size: settings.buffer_font_size(cx).into(),
10215 font_weight: FontWeight::NORMAL,
10216 font_style: FontStyle::Normal,
10217 line_height: relative(settings.buffer_line_height.value()),
10218 background_color: None,
10219 underline: None,
10220 strikethrough: None,
10221 white_space: WhiteSpace::Normal,
10222 },
10223 };
10224
10225 let background = match self.mode {
10226 EditorMode::SingleLine => cx.theme().system().transparent,
10227 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10228 EditorMode::Full => cx.theme().colors().editor_background,
10229 };
10230
10231 EditorElement::new(
10232 cx.view(),
10233 EditorStyle {
10234 background,
10235 local_player: cx.theme().players().local(),
10236 text: text_style,
10237 scrollbar_width: px(12.),
10238 syntax: cx.theme().syntax().clone(),
10239 status: cx.theme().status().clone(),
10240 inlay_hints_style: HighlightStyle {
10241 color: Some(cx.theme().status().hint),
10242 ..HighlightStyle::default()
10243 },
10244 suggestions_style: HighlightStyle {
10245 color: Some(cx.theme().status().predictive),
10246 ..HighlightStyle::default()
10247 },
10248 },
10249 )
10250 }
10251}
10252
10253impl ViewInputHandler for Editor {
10254 fn text_for_range(
10255 &mut self,
10256 range_utf16: Range<usize>,
10257 cx: &mut ViewContext<Self>,
10258 ) -> Option<String> {
10259 Some(
10260 self.buffer
10261 .read(cx)
10262 .read(cx)
10263 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
10264 .collect(),
10265 )
10266 }
10267
10268 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10269 // Prevent the IME menu from appearing when holding down an alphabetic key
10270 // while input is disabled.
10271 if !self.input_enabled {
10272 return None;
10273 }
10274
10275 let range = self.selections.newest::<OffsetUtf16>(cx).range();
10276 Some(range.start.0..range.end.0)
10277 }
10278
10279 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10280 let snapshot = self.buffer.read(cx).read(cx);
10281 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
10282 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
10283 }
10284
10285 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
10286 self.clear_highlights::<InputComposition>(cx);
10287 self.ime_transaction.take();
10288 }
10289
10290 fn replace_text_in_range(
10291 &mut self,
10292 range_utf16: Option<Range<usize>>,
10293 text: &str,
10294 cx: &mut ViewContext<Self>,
10295 ) {
10296 if !self.input_enabled {
10297 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10298 return;
10299 }
10300
10301 self.transact(cx, |this, cx| {
10302 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
10303 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10304 Some(this.selection_replacement_ranges(range_utf16, cx))
10305 } else {
10306 this.marked_text_ranges(cx)
10307 };
10308
10309 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
10310 let newest_selection_id = this.selections.newest_anchor().id;
10311 this.selections
10312 .all::<OffsetUtf16>(cx)
10313 .iter()
10314 .zip(ranges_to_replace.iter())
10315 .find_map(|(selection, range)| {
10316 if selection.id == newest_selection_id {
10317 Some(
10318 (range.start.0 as isize - selection.head().0 as isize)
10319 ..(range.end.0 as isize - selection.head().0 as isize),
10320 )
10321 } else {
10322 None
10323 }
10324 })
10325 });
10326
10327 cx.emit(EditorEvent::InputHandled {
10328 utf16_range_to_replace: range_to_replace,
10329 text: text.into(),
10330 });
10331
10332 if let Some(new_selected_ranges) = new_selected_ranges {
10333 this.change_selections(None, cx, |selections| {
10334 selections.select_ranges(new_selected_ranges)
10335 });
10336 this.backspace(&Default::default(), cx);
10337 }
10338
10339 this.handle_input(text, cx);
10340 });
10341
10342 if let Some(transaction) = self.ime_transaction {
10343 self.buffer.update(cx, |buffer, cx| {
10344 buffer.group_until_transaction(transaction, cx);
10345 });
10346 }
10347
10348 self.unmark_text(cx);
10349 }
10350
10351 fn replace_and_mark_text_in_range(
10352 &mut self,
10353 range_utf16: Option<Range<usize>>,
10354 text: &str,
10355 new_selected_range_utf16: Option<Range<usize>>,
10356 cx: &mut ViewContext<Self>,
10357 ) {
10358 if !self.input_enabled {
10359 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10360 return;
10361 }
10362
10363 let transaction = self.transact(cx, |this, cx| {
10364 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10365 let snapshot = this.buffer.read(cx).read(cx);
10366 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10367 for marked_range in &mut marked_ranges {
10368 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10369 marked_range.start.0 += relative_range_utf16.start;
10370 marked_range.start =
10371 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10372 marked_range.end =
10373 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10374 }
10375 }
10376 Some(marked_ranges)
10377 } else if let Some(range_utf16) = range_utf16 {
10378 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10379 Some(this.selection_replacement_ranges(range_utf16, cx))
10380 } else {
10381 None
10382 };
10383
10384 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10385 let newest_selection_id = this.selections.newest_anchor().id;
10386 this.selections
10387 .all::<OffsetUtf16>(cx)
10388 .iter()
10389 .zip(ranges_to_replace.iter())
10390 .find_map(|(selection, range)| {
10391 if selection.id == newest_selection_id {
10392 Some(
10393 (range.start.0 as isize - selection.head().0 as isize)
10394 ..(range.end.0 as isize - selection.head().0 as isize),
10395 )
10396 } else {
10397 None
10398 }
10399 })
10400 });
10401
10402 cx.emit(EditorEvent::InputHandled {
10403 utf16_range_to_replace: range_to_replace,
10404 text: text.into(),
10405 });
10406
10407 if let Some(ranges) = ranges_to_replace {
10408 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10409 }
10410
10411 let marked_ranges = {
10412 let snapshot = this.buffer.read(cx).read(cx);
10413 this.selections
10414 .disjoint_anchors()
10415 .iter()
10416 .map(|selection| {
10417 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10418 })
10419 .collect::<Vec<_>>()
10420 };
10421
10422 if text.is_empty() {
10423 this.unmark_text(cx);
10424 } else {
10425 this.highlight_text::<InputComposition>(
10426 marked_ranges.clone(),
10427 HighlightStyle {
10428 underline: Some(UnderlineStyle {
10429 thickness: px(1.),
10430 color: None,
10431 wavy: false,
10432 }),
10433 ..Default::default()
10434 },
10435 cx,
10436 );
10437 }
10438
10439 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10440 let use_autoclose = this.use_autoclose;
10441 this.set_use_autoclose(false);
10442 this.handle_input(text, cx);
10443 this.set_use_autoclose(use_autoclose);
10444
10445 if let Some(new_selected_range) = new_selected_range_utf16 {
10446 let snapshot = this.buffer.read(cx).read(cx);
10447 let new_selected_ranges = marked_ranges
10448 .into_iter()
10449 .map(|marked_range| {
10450 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10451 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10452 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10453 snapshot.clip_offset_utf16(new_start, Bias::Left)
10454 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10455 })
10456 .collect::<Vec<_>>();
10457
10458 drop(snapshot);
10459 this.change_selections(None, cx, |selections| {
10460 selections.select_ranges(new_selected_ranges)
10461 });
10462 }
10463 });
10464
10465 self.ime_transaction = self.ime_transaction.or(transaction);
10466 if let Some(transaction) = self.ime_transaction {
10467 self.buffer.update(cx, |buffer, cx| {
10468 buffer.group_until_transaction(transaction, cx);
10469 });
10470 }
10471
10472 if self.text_highlights::<InputComposition>(cx).is_none() {
10473 self.ime_transaction.take();
10474 }
10475 }
10476
10477 fn bounds_for_range(
10478 &mut self,
10479 range_utf16: Range<usize>,
10480 element_bounds: gpui::Bounds<Pixels>,
10481 cx: &mut ViewContext<Self>,
10482 ) -> Option<gpui::Bounds<Pixels>> {
10483 let text_layout_details = self.text_layout_details(cx);
10484 let style = &text_layout_details.editor_style;
10485 let font_id = cx.text_system().resolve_font(&style.text.font());
10486 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10487 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10488 let em_width = cx
10489 .text_system()
10490 .typographic_bounds(font_id, font_size, 'm')
10491 .unwrap()
10492 .size
10493 .width;
10494
10495 let snapshot = self.snapshot(cx);
10496 let scroll_position = snapshot.scroll_position();
10497 let scroll_left = scroll_position.x * em_width;
10498
10499 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10500 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10501 + self.gutter_width;
10502 let y = line_height * (start.row() as f32 - scroll_position.y);
10503
10504 Some(Bounds {
10505 origin: element_bounds.origin + point(x, y),
10506 size: size(em_width, line_height),
10507 })
10508 }
10509}
10510
10511trait SelectionExt {
10512 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10513 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10514 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10515 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10516 -> Range<u32>;
10517}
10518
10519impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10520 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10521 let start = self.start.to_point(buffer);
10522 let end = self.end.to_point(buffer);
10523 if self.reversed {
10524 end..start
10525 } else {
10526 start..end
10527 }
10528 }
10529
10530 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10531 let start = self.start.to_offset(buffer);
10532 let end = self.end.to_offset(buffer);
10533 if self.reversed {
10534 end..start
10535 } else {
10536 start..end
10537 }
10538 }
10539
10540 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10541 let start = self
10542 .start
10543 .to_point(&map.buffer_snapshot)
10544 .to_display_point(map);
10545 let end = self
10546 .end
10547 .to_point(&map.buffer_snapshot)
10548 .to_display_point(map);
10549 if self.reversed {
10550 end..start
10551 } else {
10552 start..end
10553 }
10554 }
10555
10556 fn spanned_rows(
10557 &self,
10558 include_end_if_at_line_start: bool,
10559 map: &DisplaySnapshot,
10560 ) -> Range<u32> {
10561 let start = self.start.to_point(&map.buffer_snapshot);
10562 let mut end = self.end.to_point(&map.buffer_snapshot);
10563 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10564 end.row -= 1;
10565 }
10566
10567 let buffer_start = map.prev_line_boundary(start).0;
10568 let buffer_end = map.next_line_boundary(end).0;
10569 buffer_start.row..buffer_end.row + 1
10570 }
10571}
10572
10573impl<T: InvalidationRegion> InvalidationStack<T> {
10574 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10575 where
10576 S: Clone + ToOffset,
10577 {
10578 while let Some(region) = self.last() {
10579 let all_selections_inside_invalidation_ranges =
10580 if selections.len() == region.ranges().len() {
10581 selections
10582 .iter()
10583 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10584 .all(|(selection, invalidation_range)| {
10585 let head = selection.head().to_offset(buffer);
10586 invalidation_range.start <= head && invalidation_range.end >= head
10587 })
10588 } else {
10589 false
10590 };
10591
10592 if all_selections_inside_invalidation_ranges {
10593 break;
10594 } else {
10595 self.pop();
10596 }
10597 }
10598 }
10599}
10600
10601impl<T> Default for InvalidationStack<T> {
10602 fn default() -> Self {
10603 Self(Default::default())
10604 }
10605}
10606
10607impl<T> Deref for InvalidationStack<T> {
10608 type Target = Vec<T>;
10609
10610 fn deref(&self) -> &Self::Target {
10611 &self.0
10612 }
10613}
10614
10615impl<T> DerefMut for InvalidationStack<T> {
10616 fn deref_mut(&mut self) -> &mut Self::Target {
10617 &mut self.0
10618 }
10619}
10620
10621impl InvalidationRegion for SnippetState {
10622 fn ranges(&self) -> &[Range<Anchor>] {
10623 &self.ranges[self.active_index]
10624 }
10625}
10626
10627pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10628 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10629
10630 Arc::new(move |cx: &mut BlockContext| {
10631 let group_id: SharedString = cx.block_id.to_string().into();
10632
10633 let mut text_style = cx.text_style().clone();
10634 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10635
10636 h_flex()
10637 .id(cx.block_id)
10638 .group(group_id.clone())
10639 .relative()
10640 .size_full()
10641 .pl(cx.gutter_dimensions.width)
10642 .w(cx.max_width + cx.gutter_dimensions.width)
10643 .child(
10644 div()
10645 .flex()
10646 .w(cx.anchor_x - cx.gutter_dimensions.width)
10647 .flex_shrink(),
10648 )
10649 .child(div().flex().flex_shrink_0().child(
10650 StyledText::new(text_without_backticks.clone()).with_highlights(
10651 &text_style,
10652 code_ranges.iter().map(|range| {
10653 (
10654 range.clone(),
10655 HighlightStyle {
10656 font_weight: Some(FontWeight::BOLD),
10657 ..Default::default()
10658 },
10659 )
10660 }),
10661 ),
10662 ))
10663 .child(
10664 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
10665 .icon_color(Color::Muted)
10666 .size(ButtonSize::Compact)
10667 .style(ButtonStyle::Transparent)
10668 .visible_on_hover(group_id)
10669 .on_click({
10670 let message = diagnostic.message.clone();
10671 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10672 })
10673 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10674 )
10675 .into_any_element()
10676 })
10677}
10678
10679pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10680 let mut text_without_backticks = String::new();
10681 let mut code_ranges = Vec::new();
10682
10683 if let Some(source) = &diagnostic.source {
10684 text_without_backticks.push_str(&source);
10685 code_ranges.push(0..source.len());
10686 text_without_backticks.push_str(": ");
10687 }
10688
10689 let mut prev_offset = 0;
10690 let mut in_code_block = false;
10691 for (ix, _) in diagnostic
10692 .message
10693 .match_indices('`')
10694 .chain([(diagnostic.message.len(), "")])
10695 {
10696 let prev_len = text_without_backticks.len();
10697 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10698 prev_offset = ix + 1;
10699 if in_code_block {
10700 code_ranges.push(prev_len..text_without_backticks.len());
10701 in_code_block = false;
10702 } else {
10703 in_code_block = true;
10704 }
10705 }
10706
10707 (text_without_backticks.into(), code_ranges)
10708}
10709
10710fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10711 match (severity, valid) {
10712 (DiagnosticSeverity::ERROR, true) => colors.error,
10713 (DiagnosticSeverity::ERROR, false) => colors.error,
10714 (DiagnosticSeverity::WARNING, true) => colors.warning,
10715 (DiagnosticSeverity::WARNING, false) => colors.warning,
10716 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10717 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10718 (DiagnosticSeverity::HINT, true) => colors.info,
10719 (DiagnosticSeverity::HINT, false) => colors.info,
10720 _ => colors.ignored,
10721 }
10722}
10723
10724pub fn styled_runs_for_code_label<'a>(
10725 label: &'a CodeLabel,
10726 syntax_theme: &'a theme::SyntaxTheme,
10727) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10728 let fade_out = HighlightStyle {
10729 fade_out: Some(0.35),
10730 ..Default::default()
10731 };
10732
10733 let mut prev_end = label.filter_range.end;
10734 label
10735 .runs
10736 .iter()
10737 .enumerate()
10738 .flat_map(move |(ix, (range, highlight_id))| {
10739 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10740 style
10741 } else {
10742 return Default::default();
10743 };
10744 let mut muted_style = style;
10745 muted_style.highlight(fade_out);
10746
10747 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10748 if range.start >= label.filter_range.end {
10749 if range.start > prev_end {
10750 runs.push((prev_end..range.start, fade_out));
10751 }
10752 runs.push((range.clone(), muted_style));
10753 } else if range.end <= label.filter_range.end {
10754 runs.push((range.clone(), style));
10755 } else {
10756 runs.push((range.start..label.filter_range.end, style));
10757 runs.push((label.filter_range.end..range.end, muted_style));
10758 }
10759 prev_end = cmp::max(prev_end, range.end);
10760
10761 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10762 runs.push((prev_end..label.text.len(), fade_out));
10763 }
10764
10765 runs
10766 })
10767}
10768
10769pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
10770 let mut prev_index = 0;
10771 let mut prev_codepoint: Option<char> = None;
10772 text.char_indices()
10773 .chain([(text.len(), '\0')])
10774 .filter_map(move |(index, codepoint)| {
10775 let prev_codepoint = prev_codepoint.replace(codepoint)?;
10776 let is_boundary = index == text.len()
10777 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
10778 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
10779 if is_boundary {
10780 let chunk = &text[prev_index..index];
10781 prev_index = index;
10782 Some(chunk)
10783 } else {
10784 None
10785 }
10786 })
10787}
10788
10789trait RangeToAnchorExt {
10790 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10791}
10792
10793impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10794 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10795 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10796 }
10797}