1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides it's behaviour.
15pub mod actions;
16mod blink_manager;
17pub mod display_map;
18mod editor_settings;
19mod element;
20mod inlay_hint_cache;
21
22mod debounced_delay;
23mod git;
24mod highlight_matching_bracket;
25mod hover_links;
26mod hover_popover;
27pub mod items;
28mod mouse_context_menu;
29pub mod movement;
30mod persistence;
31mod rust_analyzer_ext;
32pub mod scroll;
33mod selections_collection;
34
35#[cfg(test)]
36mod editor_tests;
37#[cfg(any(test, feature = "test-support"))]
38pub mod test;
39use ::git::diff::DiffHunk;
40pub(crate) use actions::*;
41use aho_corasick::AhoCorasick;
42use anyhow::{anyhow, Context as _, Result};
43use blink_manager::BlinkManager;
44use client::{Collaborator, ParticipantIndex};
45use clock::ReplicaId;
46use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
47use convert_case::{Case, Casing};
48use copilot::Copilot;
49use debounced_delay::DebouncedDelay;
50pub use display_map::DisplayPoint;
51use display_map::*;
52pub use editor_settings::EditorSettings;
53use element::LineWithInvisibles;
54pub use element::{Cursor, EditorElement, HighlightedRange, HighlightedRangeLine};
55use futures::FutureExt;
56use fuzzy::{StringMatch, StringMatchCandidate};
57use git::diff_hunk_to_display;
58use gpui::{
59 div, impl_actions, point, prelude::*, px, relative, rems, size, uniform_list, Action,
60 AnyElement, AppContext, AsyncWindowContext, BackgroundExecutor, Bounds, ClipboardItem, Context,
61 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
62 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton,
63 ParentElement, Pixels, Render, SharedString, Styled, StyledText, Subscription, Task, TextStyle,
64 UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext,
65 WeakView, WhiteSpace, WindowContext,
66};
67use highlight_matching_bracket::refresh_matching_bracket_highlights;
68use hover_popover::{hide_hover, HoverState};
69use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
70pub use items::MAX_TAB_TITLE_LEN;
71use itertools::Itertools;
72use language::{char_kind, CharKind};
73use language::{
74 language_settings::{self, all_language_settings, InlayHintSettings},
75 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
76 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
77 Language, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
78};
79
80use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
81use lsp::{DiagnosticSeverity, LanguageServerId};
82use mouse_context_menu::MouseContextMenu;
83use movement::TextLayoutDetails;
84use multi_buffer::ToOffsetUtf16;
85pub use multi_buffer::{
86 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
87 ToPoint,
88};
89use ordered_float::OrderedFloat;
90use parking_lot::{Mutex, RwLock};
91use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
92use rand::prelude::*;
93use rpc::proto::*;
94use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
95use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
96use serde::{Deserialize, Serialize};
97use settings::{Settings, SettingsStore};
98use smallvec::SmallVec;
99use snippet::Snippet;
100use std::{
101 any::TypeId,
102 borrow::Cow,
103 cmp::{self, Ordering, Reverse},
104 mem,
105 num::NonZeroU32,
106 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
107 path::Path,
108 sync::Arc,
109 time::{Duration, Instant},
110};
111pub use sum_tree::Bias;
112use sum_tree::TreeMap;
113use text::{BufferId, OffsetUtf16, Rope};
114use theme::{
115 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
116 ThemeColors, ThemeSettings,
117};
118use ui::{
119 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
120 Tooltip,
121};
122use util::{maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
123use workspace::Toast;
124use workspace::{searchable::SearchEvent, ItemNavHistory, Pane, SplitDirection, ViewId, Workspace};
125
126use crate::hover_links::find_url;
127
128const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
129const MAX_LINE_LEN: usize = 1024;
130const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
131const MAX_SELECTION_HISTORY_LEN: usize = 1024;
132const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
133pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
134#[doc(hidden)]
135pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
136#[doc(hidden)]
137pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
138
139pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
140
141pub fn render_parsed_markdown(
142 element_id: impl Into<ElementId>,
143 parsed: &language::ParsedMarkdown,
144 editor_style: &EditorStyle,
145 workspace: Option<WeakView<Workspace>>,
146 cx: &mut ViewContext<Editor>,
147) -> InteractiveText {
148 let code_span_background_color = cx
149 .theme()
150 .colors()
151 .editor_document_highlight_read_background;
152
153 let highlights = gpui::combine_highlights(
154 parsed.highlights.iter().filter_map(|(range, highlight)| {
155 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
156 Some((range.clone(), highlight))
157 }),
158 parsed
159 .regions
160 .iter()
161 .zip(&parsed.region_ranges)
162 .filter_map(|(region, range)| {
163 if region.code {
164 Some((
165 range.clone(),
166 HighlightStyle {
167 background_color: Some(code_span_background_color),
168 ..Default::default()
169 },
170 ))
171 } else {
172 None
173 }
174 }),
175 );
176
177 let mut links = Vec::new();
178 let mut link_ranges = Vec::new();
179 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
180 if let Some(link) = region.link.clone() {
181 links.push(link);
182 link_ranges.push(range.clone());
183 }
184 }
185
186 InteractiveText::new(
187 element_id,
188 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
189 )
190 .on_click(link_ranges, move |clicked_range_ix, cx| {
191 match &links[clicked_range_ix] {
192 markdown::Link::Web { url } => cx.open_url(url),
193 markdown::Link::Path { path } => {
194 if let Some(workspace) = &workspace {
195 _ = workspace.update(cx, |workspace, cx| {
196 workspace.open_abs_path(path.clone(), false, cx).detach();
197 });
198 }
199 }
200 }
201 })
202}
203
204#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
205pub(crate) enum InlayId {
206 Suggestion(usize),
207 Hint(usize),
208}
209
210impl InlayId {
211 fn id(&self) -> usize {
212 match self {
213 Self::Suggestion(id) => *id,
214 Self::Hint(id) => *id,
215 }
216 }
217}
218
219enum DocumentHighlightRead {}
220enum DocumentHighlightWrite {}
221enum InputComposition {}
222
223#[derive(Copy, Clone, PartialEq, Eq)]
224pub enum Direction {
225 Prev,
226 Next,
227}
228
229pub fn init_settings(cx: &mut AppContext) {
230 EditorSettings::register(cx);
231}
232
233pub fn init(cx: &mut AppContext) {
234 init_settings(cx);
235
236 workspace::register_project_item::<Editor>(cx);
237 workspace::register_followable_item::<Editor>(cx);
238 workspace::register_deserializable_item::<Editor>(cx);
239 cx.observe_new_views(
240 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
241 workspace.register_action(Editor::new_file);
242 workspace.register_action(Editor::new_file_in_direction);
243 },
244 )
245 .detach();
246
247 cx.on_action(move |_: &workspace::NewFile, cx| {
248 let app_state = workspace::AppState::global(cx);
249 if let Some(app_state) = app_state.upgrade() {
250 workspace::open_new(&app_state, cx, |workspace, cx| {
251 Editor::new_file(workspace, &Default::default(), cx)
252 })
253 .detach();
254 }
255 });
256 cx.on_action(move |_: &workspace::NewWindow, cx| {
257 let app_state = workspace::AppState::global(cx);
258 if let Some(app_state) = app_state.upgrade() {
259 workspace::open_new(&app_state, cx, |workspace, cx| {
260 Editor::new_file(workspace, &Default::default(), cx)
261 })
262 .detach();
263 }
264 });
265}
266
267trait InvalidationRegion {
268 fn ranges(&self) -> &[Range<Anchor>];
269}
270
271#[derive(Clone, Debug, PartialEq)]
272pub enum SelectPhase {
273 Begin {
274 position: DisplayPoint,
275 add: bool,
276 click_count: usize,
277 },
278 BeginColumnar {
279 position: DisplayPoint,
280 goal_column: u32,
281 },
282 Extend {
283 position: DisplayPoint,
284 click_count: usize,
285 },
286 Update {
287 position: DisplayPoint,
288 goal_column: u32,
289 scroll_delta: gpui::Point<f32>,
290 },
291 End,
292}
293
294#[derive(Clone, Debug)]
295pub enum SelectMode {
296 Character,
297 Word(Range<Anchor>),
298 Line(Range<Anchor>),
299 All,
300}
301
302#[derive(Copy, Clone, PartialEq, Eq, Debug)]
303pub enum EditorMode {
304 SingleLine,
305 AutoHeight { max_lines: usize },
306 Full,
307}
308
309#[derive(Clone, Debug)]
310pub enum SoftWrap {
311 None,
312 EditorWidth,
313 Column(u32),
314}
315
316#[derive(Clone)]
317pub struct EditorStyle {
318 pub background: Hsla,
319 pub local_player: PlayerColor,
320 pub text: TextStyle,
321 pub scrollbar_width: Pixels,
322 pub syntax: Arc<SyntaxTheme>,
323 pub status: StatusColors,
324 pub inlays_style: HighlightStyle,
325 pub suggestions_style: HighlightStyle,
326}
327
328impl Default for EditorStyle {
329 fn default() -> Self {
330 Self {
331 background: Hsla::default(),
332 local_player: PlayerColor::default(),
333 text: TextStyle::default(),
334 scrollbar_width: Pixels::default(),
335 syntax: Default::default(),
336 // HACK: Status colors don't have a real default.
337 // We should look into removing the status colors from the editor
338 // style and retrieve them directly from the theme.
339 status: StatusColors::dark(),
340 inlays_style: HighlightStyle::default(),
341 suggestions_style: HighlightStyle::default(),
342 }
343 }
344}
345
346type CompletionId = usize;
347
348// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
349// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
350
351type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
352type InlayBackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<InlayHighlight>);
353
354/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
355///
356/// See the [module level documentation](self) for more information.
357pub struct Editor {
358 handle: WeakView<Self>,
359 focus_handle: FocusHandle,
360 /// The text buffer being edited
361 buffer: Model<MultiBuffer>,
362 /// Map of how text in the buffer should be displayed.
363 /// Handles soft wraps, folds, fake inlay text insertions, etc.
364 display_map: Model<DisplayMap>,
365 pub selections: SelectionsCollection,
366 pub scroll_manager: ScrollManager,
367 columnar_selection_tail: Option<Anchor>,
368 add_selections_state: Option<AddSelectionsState>,
369 select_next_state: Option<SelectNextState>,
370 select_prev_state: Option<SelectNextState>,
371 selection_history: SelectionHistory,
372 autoclose_regions: Vec<AutocloseRegion>,
373 snippet_stack: InvalidationStack<SnippetState>,
374 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
375 ime_transaction: Option<TransactionId>,
376 active_diagnostics: Option<ActiveDiagnosticGroup>,
377 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
378 project: Option<Model<Project>>,
379 completion_provider: Option<Box<dyn CompletionProvider>>,
380 collaboration_hub: Option<Box<dyn CollaborationHub>>,
381 blink_manager: Model<BlinkManager>,
382 show_cursor_names: bool,
383 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
384 pub show_local_selections: bool,
385 mode: EditorMode,
386 show_breadcrumbs: bool,
387 show_gutter: bool,
388 show_wrap_guides: Option<bool>,
389 placeholder_text: Option<Arc<str>>,
390 highlighted_rows: Option<Range<u32>>,
391 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
392 inlay_background_highlights: TreeMap<Option<TypeId>, InlayBackgroundHighlight>,
393 nav_history: Option<ItemNavHistory>,
394 context_menu: RwLock<Option<ContextMenu>>,
395 mouse_context_menu: Option<MouseContextMenu>,
396 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
397 next_completion_id: CompletionId,
398 completion_documentation_pre_resolve_debounce: DebouncedDelay,
399 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
400 code_actions_task: Option<Task<()>>,
401 document_highlights_task: Option<Task<()>>,
402 pending_rename: Option<RenameState>,
403 searchable: bool,
404 cursor_shape: CursorShape,
405 collapse_matches: bool,
406 autoindent_mode: Option<AutoindentMode>,
407 workspace: Option<(WeakView<Workspace>, i64)>,
408 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
409 input_enabled: bool,
410 use_modal_editing: bool,
411 read_only: bool,
412 leader_peer_id: Option<PeerId>,
413 remote_id: Option<ViewId>,
414 hover_state: HoverState,
415 gutter_hovered: bool,
416 hovered_link_state: Option<HoveredLinkState>,
417 copilot_state: CopilotState,
418 inlay_hint_cache: InlayHintCache,
419 next_inlay_id: usize,
420 _subscriptions: Vec<Subscription>,
421 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
422 gutter_width: Pixels,
423 style: Option<EditorStyle>,
424 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
425 show_copilot_suggestions: bool,
426 use_autoclose: bool,
427 custom_context_menu: Option<
428 Box<
429 dyn 'static
430 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
431 >,
432 >,
433}
434
435pub struct EditorSnapshot {
436 pub mode: EditorMode,
437 show_gutter: bool,
438 pub display_snapshot: DisplaySnapshot,
439 pub placeholder_text: Option<Arc<str>>,
440 is_focused: bool,
441 scroll_anchor: ScrollAnchor,
442 ongoing_scroll: OngoingScroll,
443}
444
445pub struct GutterDimensions {
446 pub padding: Pixels,
447 pub width: Pixels,
448 pub margin: Pixels,
449}
450
451impl Default for GutterDimensions {
452 fn default() -> Self {
453 Self {
454 padding: Pixels::ZERO,
455 width: Pixels::ZERO,
456 margin: Pixels::ZERO,
457 }
458 }
459}
460
461#[derive(Debug)]
462pub struct RemoteSelection {
463 pub replica_id: ReplicaId,
464 pub selection: Selection<Anchor>,
465 pub cursor_shape: CursorShape,
466 pub peer_id: PeerId,
467 pub line_mode: bool,
468 pub participant_index: Option<ParticipantIndex>,
469 pub user_name: Option<SharedString>,
470}
471
472#[derive(Clone, Debug)]
473struct SelectionHistoryEntry {
474 selections: Arc<[Selection<Anchor>]>,
475 select_next_state: Option<SelectNextState>,
476 select_prev_state: Option<SelectNextState>,
477 add_selections_state: Option<AddSelectionsState>,
478}
479
480enum SelectionHistoryMode {
481 Normal,
482 Undoing,
483 Redoing,
484}
485
486#[derive(Clone, PartialEq, Eq, Hash)]
487struct HoveredCursor {
488 replica_id: u16,
489 selection_id: usize,
490}
491
492impl Default for SelectionHistoryMode {
493 fn default() -> Self {
494 Self::Normal
495 }
496}
497
498#[derive(Default)]
499struct SelectionHistory {
500 #[allow(clippy::type_complexity)]
501 selections_by_transaction:
502 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
503 mode: SelectionHistoryMode,
504 undo_stack: VecDeque<SelectionHistoryEntry>,
505 redo_stack: VecDeque<SelectionHistoryEntry>,
506}
507
508impl SelectionHistory {
509 fn insert_transaction(
510 &mut self,
511 transaction_id: TransactionId,
512 selections: Arc<[Selection<Anchor>]>,
513 ) {
514 self.selections_by_transaction
515 .insert(transaction_id, (selections, None));
516 }
517
518 #[allow(clippy::type_complexity)]
519 fn transaction(
520 &self,
521 transaction_id: TransactionId,
522 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
523 self.selections_by_transaction.get(&transaction_id)
524 }
525
526 #[allow(clippy::type_complexity)]
527 fn transaction_mut(
528 &mut self,
529 transaction_id: TransactionId,
530 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
531 self.selections_by_transaction.get_mut(&transaction_id)
532 }
533
534 fn push(&mut self, entry: SelectionHistoryEntry) {
535 if !entry.selections.is_empty() {
536 match self.mode {
537 SelectionHistoryMode::Normal => {
538 self.push_undo(entry);
539 self.redo_stack.clear();
540 }
541 SelectionHistoryMode::Undoing => self.push_redo(entry),
542 SelectionHistoryMode::Redoing => self.push_undo(entry),
543 }
544 }
545 }
546
547 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
548 if self
549 .undo_stack
550 .back()
551 .map_or(true, |e| e.selections != entry.selections)
552 {
553 self.undo_stack.push_back(entry);
554 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
555 self.undo_stack.pop_front();
556 }
557 }
558 }
559
560 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
561 if self
562 .redo_stack
563 .back()
564 .map_or(true, |e| e.selections != entry.selections)
565 {
566 self.redo_stack.push_back(entry);
567 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
568 self.redo_stack.pop_front();
569 }
570 }
571 }
572}
573
574#[derive(Clone, Debug)]
575struct AddSelectionsState {
576 above: bool,
577 stack: Vec<usize>,
578}
579
580#[derive(Clone)]
581struct SelectNextState {
582 query: AhoCorasick,
583 wordwise: bool,
584 done: bool,
585}
586
587impl std::fmt::Debug for SelectNextState {
588 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
589 f.debug_struct(std::any::type_name::<Self>())
590 .field("wordwise", &self.wordwise)
591 .field("done", &self.done)
592 .finish()
593 }
594}
595
596#[derive(Debug)]
597struct AutocloseRegion {
598 selection_id: usize,
599 range: Range<Anchor>,
600 pair: BracketPair,
601}
602
603#[derive(Debug)]
604struct SnippetState {
605 ranges: Vec<Vec<Range<Anchor>>>,
606 active_index: usize,
607}
608
609#[doc(hidden)]
610pub struct RenameState {
611 pub range: Range<Anchor>,
612 pub old_name: Arc<str>,
613 pub editor: View<Editor>,
614 block_id: BlockId,
615}
616
617struct InvalidationStack<T>(Vec<T>);
618
619enum ContextMenu {
620 Completions(CompletionsMenu),
621 CodeActions(CodeActionsMenu),
622}
623
624impl ContextMenu {
625 fn select_first(
626 &mut self,
627 project: Option<&Model<Project>>,
628 cx: &mut ViewContext<Editor>,
629 ) -> bool {
630 if self.visible() {
631 match self {
632 ContextMenu::Completions(menu) => menu.select_first(project, cx),
633 ContextMenu::CodeActions(menu) => menu.select_first(cx),
634 }
635 true
636 } else {
637 false
638 }
639 }
640
641 fn select_prev(
642 &mut self,
643 project: Option<&Model<Project>>,
644 cx: &mut ViewContext<Editor>,
645 ) -> bool {
646 if self.visible() {
647 match self {
648 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
649 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
650 }
651 true
652 } else {
653 false
654 }
655 }
656
657 fn select_next(
658 &mut self,
659 project: Option<&Model<Project>>,
660 cx: &mut ViewContext<Editor>,
661 ) -> bool {
662 if self.visible() {
663 match self {
664 ContextMenu::Completions(menu) => menu.select_next(project, cx),
665 ContextMenu::CodeActions(menu) => menu.select_next(cx),
666 }
667 true
668 } else {
669 false
670 }
671 }
672
673 fn select_last(
674 &mut self,
675 project: Option<&Model<Project>>,
676 cx: &mut ViewContext<Editor>,
677 ) -> bool {
678 if self.visible() {
679 match self {
680 ContextMenu::Completions(menu) => menu.select_last(project, cx),
681 ContextMenu::CodeActions(menu) => menu.select_last(cx),
682 }
683 true
684 } else {
685 false
686 }
687 }
688
689 fn visible(&self) -> bool {
690 match self {
691 ContextMenu::Completions(menu) => menu.visible(),
692 ContextMenu::CodeActions(menu) => menu.visible(),
693 }
694 }
695
696 fn render(
697 &self,
698 cursor_position: DisplayPoint,
699 style: &EditorStyle,
700 max_height: Pixels,
701 workspace: Option<WeakView<Workspace>>,
702 cx: &mut ViewContext<Editor>,
703 ) -> (DisplayPoint, AnyElement) {
704 match self {
705 ContextMenu::Completions(menu) => (
706 cursor_position,
707 menu.render(style, max_height, workspace, cx),
708 ),
709 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
710 }
711 }
712}
713
714#[derive(Clone)]
715struct CompletionsMenu {
716 id: CompletionId,
717 initial_position: Anchor,
718 buffer: Model<Buffer>,
719 completions: Arc<RwLock<Box<[Completion]>>>,
720 match_candidates: Arc<[StringMatchCandidate]>,
721 matches: Arc<[StringMatch]>,
722 selected_item: usize,
723 scroll_handle: UniformListScrollHandle,
724 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
725}
726
727impl CompletionsMenu {
728 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
729 self.selected_item = 0;
730 self.scroll_handle.scroll_to_item(self.selected_item);
731 self.attempt_resolve_selected_completion_documentation(project, cx);
732 cx.notify();
733 }
734
735 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
736 if self.selected_item > 0 {
737 self.selected_item -= 1;
738 } else {
739 self.selected_item = self.matches.len() - 1;
740 }
741 self.scroll_handle.scroll_to_item(self.selected_item);
742 self.attempt_resolve_selected_completion_documentation(project, cx);
743 cx.notify();
744 }
745
746 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
747 if self.selected_item + 1 < self.matches.len() {
748 self.selected_item += 1;
749 } else {
750 self.selected_item = 0;
751 }
752 self.scroll_handle.scroll_to_item(self.selected_item);
753 self.attempt_resolve_selected_completion_documentation(project, cx);
754 cx.notify();
755 }
756
757 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
758 self.selected_item = self.matches.len() - 1;
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 pre_resolve_completion_documentation(
765 completions: Arc<RwLock<Box<[Completion]>>>,
766 matches: Arc<[StringMatch]>,
767 editor: &Editor,
768 cx: &mut ViewContext<Editor>,
769 ) -> Task<()> {
770 let settings = EditorSettings::get_global(cx);
771 if !settings.show_completion_documentation {
772 return Task::ready(());
773 }
774
775 let Some(provider) = editor.completion_provider.as_ref() else {
776 return Task::ready(());
777 };
778
779 let resolve_task = provider.resolve_completions(
780 matches.iter().map(|m| m.candidate_id).collect(),
781 completions.clone(),
782 cx,
783 );
784
785 return cx.spawn(move |this, mut cx| async move {
786 if let Some(true) = resolve_task.await.log_err() {
787 this.update(&mut cx, |_, cx| cx.notify()).ok();
788 }
789 });
790 }
791
792 fn attempt_resolve_selected_completion_documentation(
793 &mut self,
794 project: Option<&Model<Project>>,
795 cx: &mut ViewContext<Editor>,
796 ) {
797 let settings = EditorSettings::get_global(cx);
798 if !settings.show_completion_documentation {
799 return;
800 }
801
802 let completion_index = self.matches[self.selected_item].candidate_id;
803 let Some(project) = project else {
804 return;
805 };
806
807 let resolve_task = project.update(cx, |project, cx| {
808 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
809 });
810
811 let delay_ms =
812 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
813 let delay = Duration::from_millis(delay_ms);
814
815 self.selected_completion_documentation_resolve_debounce
816 .lock()
817 .fire_new(delay, cx, |_, cx| {
818 cx.spawn(move |this, mut cx| async move {
819 if let Some(true) = resolve_task.await.log_err() {
820 this.update(&mut cx, |_, cx| cx.notify()).ok();
821 }
822 })
823 });
824 }
825
826 fn visible(&self) -> bool {
827 !self.matches.is_empty()
828 }
829
830 fn render(
831 &self,
832 style: &EditorStyle,
833 max_height: Pixels,
834 workspace: Option<WeakView<Workspace>>,
835 cx: &mut ViewContext<Editor>,
836 ) -> AnyElement {
837 let settings = EditorSettings::get_global(cx);
838 let show_completion_documentation = settings.show_completion_documentation;
839
840 let widest_completion_ix = self
841 .matches
842 .iter()
843 .enumerate()
844 .max_by_key(|(_, mat)| {
845 let completions = self.completions.read();
846 let completion = &completions[mat.candidate_id];
847 let documentation = &completion.documentation;
848
849 let mut len = completion.label.text.chars().count();
850 if let Some(Documentation::SingleLine(text)) = documentation {
851 if show_completion_documentation {
852 len += text.chars().count();
853 }
854 }
855
856 len
857 })
858 .map(|(ix, _)| ix);
859
860 let completions = self.completions.clone();
861 let matches = self.matches.clone();
862 let selected_item = self.selected_item;
863 let style = style.clone();
864
865 let multiline_docs = if show_completion_documentation {
866 let mat = &self.matches[selected_item];
867 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
868 Some(Documentation::MultiLinePlainText(text)) => {
869 Some(div().child(SharedString::from(text.clone())))
870 }
871 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
872 Some(div().child(render_parsed_markdown(
873 "completions_markdown",
874 parsed,
875 &style,
876 workspace,
877 cx,
878 )))
879 }
880 _ => None,
881 };
882 multiline_docs.map(|div| {
883 div.id("multiline_docs")
884 .max_h(max_height)
885 .flex_1()
886 .px_1p5()
887 .py_1()
888 .min_w(px(260.))
889 .max_w(px(640.))
890 .w(px(500.))
891 .overflow_y_scroll()
892 // Prevent a mouse down on documentation from being propagated to the editor,
893 // because that would move the cursor.
894 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
895 })
896 } else {
897 None
898 };
899
900 let list = uniform_list(
901 cx.view().clone(),
902 "completions",
903 matches.len(),
904 move |_editor, range, cx| {
905 let start_ix = range.start;
906 let completions_guard = completions.read();
907
908 matches[range]
909 .iter()
910 .enumerate()
911 .map(|(ix, mat)| {
912 let item_ix = start_ix + ix;
913 let candidate_id = mat.candidate_id;
914 let completion = &completions_guard[candidate_id];
915
916 let documentation = if show_completion_documentation {
917 &completion.documentation
918 } else {
919 &None
920 };
921
922 let highlights = gpui::combine_highlights(
923 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
924 styled_runs_for_code_label(&completion.label, &style.syntax).map(
925 |(range, mut highlight)| {
926 // Ignore font weight for syntax highlighting, as we'll use it
927 // for fuzzy matches.
928 highlight.font_weight = None;
929 (range, highlight)
930 },
931 ),
932 );
933 let completion_label = StyledText::new(completion.label.text.clone())
934 .with_highlights(&style.text, highlights);
935 let documentation_label =
936 if let Some(Documentation::SingleLine(text)) = documentation {
937 if text.trim().is_empty() {
938 None
939 } else {
940 Some(
941 h_flex().ml_4().child(
942 Label::new(text.clone())
943 .size(LabelSize::Small)
944 .color(Color::Muted),
945 ),
946 )
947 }
948 } else {
949 None
950 };
951
952 div().min_w(px(220.)).max_w(px(540.)).child(
953 ListItem::new(mat.candidate_id)
954 .inset(true)
955 .selected(item_ix == selected_item)
956 .on_click(cx.listener(move |editor, _event, cx| {
957 cx.stop_propagation();
958 editor
959 .confirm_completion(
960 &ConfirmCompletion {
961 item_ix: Some(item_ix),
962 },
963 cx,
964 )
965 .map(|task| task.detach_and_log_err(cx));
966 }))
967 .child(h_flex().overflow_hidden().child(completion_label))
968 .end_slot::<Div>(documentation_label),
969 )
970 })
971 .collect()
972 },
973 )
974 .max_h(max_height)
975 .track_scroll(self.scroll_handle.clone())
976 .with_width_from_item(widest_completion_ix);
977
978 Popover::new()
979 .child(list)
980 .when_some(multiline_docs, |popover, multiline_docs| {
981 popover.aside(multiline_docs)
982 })
983 .into_any_element()
984 }
985
986 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
987 let mut matches = if let Some(query) = query {
988 fuzzy::match_strings(
989 &self.match_candidates,
990 query,
991 query.chars().any(|c| c.is_uppercase()),
992 100,
993 &Default::default(),
994 executor,
995 )
996 .await
997 } else {
998 self.match_candidates
999 .iter()
1000 .enumerate()
1001 .map(|(candidate_id, candidate)| StringMatch {
1002 candidate_id,
1003 score: Default::default(),
1004 positions: Default::default(),
1005 string: candidate.string.clone(),
1006 })
1007 .collect()
1008 };
1009
1010 // Remove all candidates where the query's start does not match the start of any word in the candidate
1011 if let Some(query) = query {
1012 if let Some(query_start) = query.chars().next() {
1013 matches.retain(|string_match| {
1014 split_words(&string_match.string).any(|word| {
1015 // Check that the first codepoint of the word as lowercase matches the first
1016 // codepoint of the query as lowercase
1017 word.chars()
1018 .flat_map(|codepoint| codepoint.to_lowercase())
1019 .zip(query_start.to_lowercase())
1020 .all(|(word_cp, query_cp)| word_cp == query_cp)
1021 })
1022 });
1023 }
1024 }
1025
1026 let completions = self.completions.read();
1027 matches.sort_unstable_by_key(|mat| {
1028 // We do want to strike a balance here between what the language server tells us
1029 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1030 // `Creat` and there is a local variable called `CreateComponent`).
1031 // So what we do is: we bucket all matches into two buckets
1032 // - Strong matches
1033 // - Weak matches
1034 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1035 // and the Weak matches are the rest.
1036 //
1037 // For the strong matches, we sort by the language-servers score first and for the weak
1038 // matches, we prefer our fuzzy finder first.
1039 //
1040 // The thinking behind that: it's useless to take the sort_text the language-server gives
1041 // us into account when it's obviously a bad match.
1042
1043 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1044 enum MatchScore<'a> {
1045 Strong {
1046 sort_text: Option<&'a str>,
1047 score: Reverse<OrderedFloat<f64>>,
1048 sort_key: (usize, &'a str),
1049 },
1050 Weak {
1051 score: Reverse<OrderedFloat<f64>>,
1052 sort_text: Option<&'a str>,
1053 sort_key: (usize, &'a str),
1054 },
1055 }
1056
1057 let completion = &completions[mat.candidate_id];
1058 let sort_key = completion.sort_key();
1059 let sort_text = completion.lsp_completion.sort_text.as_deref();
1060 let score = Reverse(OrderedFloat(mat.score));
1061
1062 if mat.score >= 0.2 {
1063 MatchScore::Strong {
1064 sort_text,
1065 score,
1066 sort_key,
1067 }
1068 } else {
1069 MatchScore::Weak {
1070 score,
1071 sort_text,
1072 sort_key,
1073 }
1074 }
1075 });
1076
1077 for mat in &mut matches {
1078 let completion = &completions[mat.candidate_id];
1079 mat.string = completion.label.text.clone();
1080 for position in &mut mat.positions {
1081 *position += completion.label.filter_range.start;
1082 }
1083 }
1084 drop(completions);
1085
1086 self.matches = matches.into();
1087 self.selected_item = 0;
1088 }
1089}
1090
1091#[derive(Clone)]
1092struct CodeActionsMenu {
1093 actions: Arc<[CodeAction]>,
1094 buffer: Model<Buffer>,
1095 selected_item: usize,
1096 scroll_handle: UniformListScrollHandle,
1097 deployed_from_indicator: bool,
1098}
1099
1100impl CodeActionsMenu {
1101 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1102 self.selected_item = 0;
1103 self.scroll_handle.scroll_to_item(self.selected_item);
1104 cx.notify()
1105 }
1106
1107 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1108 if self.selected_item > 0 {
1109 self.selected_item -= 1;
1110 } else {
1111 self.selected_item = self.actions.len() - 1;
1112 }
1113 self.scroll_handle.scroll_to_item(self.selected_item);
1114 cx.notify();
1115 }
1116
1117 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1118 if self.selected_item + 1 < self.actions.len() {
1119 self.selected_item += 1;
1120 } else {
1121 self.selected_item = 0;
1122 }
1123 self.scroll_handle.scroll_to_item(self.selected_item);
1124 cx.notify();
1125 }
1126
1127 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1128 self.selected_item = self.actions.len() - 1;
1129 self.scroll_handle.scroll_to_item(self.selected_item);
1130 cx.notify()
1131 }
1132
1133 fn visible(&self) -> bool {
1134 !self.actions.is_empty()
1135 }
1136
1137 fn render(
1138 &self,
1139 mut cursor_position: DisplayPoint,
1140 _style: &EditorStyle,
1141 max_height: Pixels,
1142 cx: &mut ViewContext<Editor>,
1143 ) -> (DisplayPoint, AnyElement) {
1144 let actions = self.actions.clone();
1145 let selected_item = self.selected_item;
1146
1147 let element = uniform_list(
1148 cx.view().clone(),
1149 "code_actions_menu",
1150 self.actions.len(),
1151 move |_this, range, cx| {
1152 actions[range.clone()]
1153 .iter()
1154 .enumerate()
1155 .map(|(ix, action)| {
1156 let item_ix = range.start + ix;
1157 let selected = selected_item == item_ix;
1158 let colors = cx.theme().colors();
1159 div()
1160 .px_2()
1161 .text_color(colors.text)
1162 .when(selected, |style| {
1163 style
1164 .bg(colors.element_active)
1165 .text_color(colors.text_accent)
1166 })
1167 .hover(|style| {
1168 style
1169 .bg(colors.element_hover)
1170 .text_color(colors.text_accent)
1171 })
1172 .on_mouse_down(
1173 MouseButton::Left,
1174 cx.listener(move |editor, _, cx| {
1175 cx.stop_propagation();
1176 editor
1177 .confirm_code_action(
1178 &ConfirmCodeAction {
1179 item_ix: Some(item_ix),
1180 },
1181 cx,
1182 )
1183 .map(|task| task.detach_and_log_err(cx));
1184 }),
1185 )
1186 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1187 .child(SharedString::from(action.lsp_action.title.clone()))
1188 })
1189 .collect()
1190 },
1191 )
1192 .elevation_1(cx)
1193 .px_2()
1194 .py_1()
1195 .max_h(max_height)
1196 .track_scroll(self.scroll_handle.clone())
1197 .with_width_from_item(
1198 self.actions
1199 .iter()
1200 .enumerate()
1201 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1202 .map(|(ix, _)| ix),
1203 )
1204 .into_any_element();
1205
1206 if self.deployed_from_indicator {
1207 *cursor_position.column_mut() = 0;
1208 }
1209
1210 (cursor_position, element)
1211 }
1212}
1213
1214pub(crate) struct CopilotState {
1215 excerpt_id: Option<ExcerptId>,
1216 pending_refresh: Task<Option<()>>,
1217 pending_cycling_refresh: Task<Option<()>>,
1218 cycled: bool,
1219 completions: Vec<copilot::Completion>,
1220 active_completion_index: usize,
1221 suggestion: Option<Inlay>,
1222}
1223
1224impl Default for CopilotState {
1225 fn default() -> Self {
1226 Self {
1227 excerpt_id: None,
1228 pending_cycling_refresh: Task::ready(Some(())),
1229 pending_refresh: Task::ready(Some(())),
1230 completions: Default::default(),
1231 active_completion_index: 0,
1232 cycled: false,
1233 suggestion: None,
1234 }
1235 }
1236}
1237
1238impl CopilotState {
1239 fn active_completion(&self) -> Option<&copilot::Completion> {
1240 self.completions.get(self.active_completion_index)
1241 }
1242
1243 fn text_for_active_completion(
1244 &self,
1245 cursor: Anchor,
1246 buffer: &MultiBufferSnapshot,
1247 ) -> Option<&str> {
1248 use language::ToOffset as _;
1249
1250 let completion = self.active_completion()?;
1251 let excerpt_id = self.excerpt_id?;
1252 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1253 if excerpt_id != cursor.excerpt_id
1254 || !completion.range.start.is_valid(completion_buffer)
1255 || !completion.range.end.is_valid(completion_buffer)
1256 {
1257 return None;
1258 }
1259
1260 let mut completion_range = completion.range.to_offset(&completion_buffer);
1261 let prefix_len = Self::common_prefix(
1262 completion_buffer.chars_for_range(completion_range.clone()),
1263 completion.text.chars(),
1264 );
1265 completion_range.start += prefix_len;
1266 let suffix_len = Self::common_prefix(
1267 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1268 completion.text[prefix_len..].chars().rev(),
1269 );
1270 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1271
1272 if completion_range.is_empty()
1273 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1274 {
1275 let completion_text = &completion.text[prefix_len..completion.text.len() - suffix_len];
1276 if completion_text.trim().is_empty() {
1277 None
1278 } else {
1279 Some(completion_text)
1280 }
1281 } else {
1282 None
1283 }
1284 }
1285
1286 fn cycle_completions(&mut self, direction: Direction) {
1287 match direction {
1288 Direction::Prev => {
1289 self.active_completion_index = if self.active_completion_index == 0 {
1290 self.completions.len().saturating_sub(1)
1291 } else {
1292 self.active_completion_index - 1
1293 };
1294 }
1295 Direction::Next => {
1296 if self.completions.len() == 0 {
1297 self.active_completion_index = 0
1298 } else {
1299 self.active_completion_index =
1300 (self.active_completion_index + 1) % self.completions.len();
1301 }
1302 }
1303 }
1304 }
1305
1306 fn push_completion(&mut self, new_completion: copilot::Completion) {
1307 for completion in &self.completions {
1308 if completion.text == new_completion.text && completion.range == new_completion.range {
1309 return;
1310 }
1311 }
1312 self.completions.push(new_completion);
1313 }
1314
1315 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1316 a.zip(b)
1317 .take_while(|(a, b)| a == b)
1318 .map(|(a, _)| a.len_utf8())
1319 .sum()
1320 }
1321}
1322
1323#[derive(Debug)]
1324struct ActiveDiagnosticGroup {
1325 primary_range: Range<Anchor>,
1326 primary_message: String,
1327 blocks: HashMap<BlockId, Diagnostic>,
1328 is_valid: bool,
1329}
1330
1331#[derive(Serialize, Deserialize)]
1332pub struct ClipboardSelection {
1333 pub len: usize,
1334 pub is_entire_line: bool,
1335 pub first_line_indent: u32,
1336}
1337
1338#[derive(Debug)]
1339pub(crate) struct NavigationData {
1340 cursor_anchor: Anchor,
1341 cursor_position: Point,
1342 scroll_anchor: ScrollAnchor,
1343 scroll_top_row: u32,
1344}
1345
1346enum GotoDefinitionKind {
1347 Symbol,
1348 Type,
1349}
1350
1351#[derive(Debug, Clone)]
1352enum InlayHintRefreshReason {
1353 Toggle(bool),
1354 SettingsChange(InlayHintSettings),
1355 NewLinesShown,
1356 BufferEdited(HashSet<Arc<Language>>),
1357 RefreshRequested,
1358 ExcerptsRemoved(Vec<ExcerptId>),
1359}
1360impl InlayHintRefreshReason {
1361 fn description(&self) -> &'static str {
1362 match self {
1363 Self::Toggle(_) => "toggle",
1364 Self::SettingsChange(_) => "settings change",
1365 Self::NewLinesShown => "new lines shown",
1366 Self::BufferEdited(_) => "buffer edited",
1367 Self::RefreshRequested => "refresh requested",
1368 Self::ExcerptsRemoved(_) => "excerpts removed",
1369 }
1370 }
1371}
1372
1373impl Editor {
1374 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1375 let buffer = cx.new_model(|cx| {
1376 Buffer::new(
1377 0,
1378 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1379 String::new(),
1380 )
1381 });
1382 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1383 Self::new(EditorMode::SingleLine, buffer, None, cx)
1384 }
1385
1386 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1387 let buffer = cx.new_model(|cx| {
1388 Buffer::new(
1389 0,
1390 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1391 String::new(),
1392 )
1393 });
1394 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1395 Self::new(EditorMode::Full, buffer, None, cx)
1396 }
1397
1398 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1399 let buffer = cx.new_model(|cx| {
1400 Buffer::new(
1401 0,
1402 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1403 String::new(),
1404 )
1405 });
1406 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1407 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1408 }
1409
1410 pub fn for_buffer(
1411 buffer: Model<Buffer>,
1412 project: Option<Model<Project>>,
1413 cx: &mut ViewContext<Self>,
1414 ) -> Self {
1415 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1416 Self::new(EditorMode::Full, buffer, project, cx)
1417 }
1418
1419 pub fn for_multibuffer(
1420 buffer: Model<MultiBuffer>,
1421 project: Option<Model<Project>>,
1422 cx: &mut ViewContext<Self>,
1423 ) -> Self {
1424 Self::new(EditorMode::Full, buffer, project, cx)
1425 }
1426
1427 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1428 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1429 self.display_map.update(cx, |display_map, cx| {
1430 let snapshot = display_map.snapshot(cx);
1431 clone.display_map.update(cx, |display_map, cx| {
1432 display_map.set_state(&snapshot, cx);
1433 });
1434 });
1435 clone.selections.clone_state(&self.selections);
1436 clone.scroll_manager.clone_state(&self.scroll_manager);
1437 clone.searchable = self.searchable;
1438 clone
1439 }
1440
1441 fn new(
1442 mode: EditorMode,
1443 buffer: Model<MultiBuffer>,
1444 project: Option<Model<Project>>,
1445 cx: &mut ViewContext<Self>,
1446 ) -> Self {
1447 let style = cx.text_style();
1448 let font_size = style.font_size.to_pixels(cx.rem_size());
1449 let display_map = cx.new_model(|cx| {
1450 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1451 });
1452
1453 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1454
1455 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1456
1457 let soft_wrap_mode_override =
1458 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1459
1460 let mut project_subscriptions = Vec::new();
1461 if mode == EditorMode::Full {
1462 if let Some(project) = project.as_ref() {
1463 if buffer.read(cx).is_singleton() {
1464 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1465 cx.emit(EditorEvent::TitleChanged);
1466 }));
1467 }
1468 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1469 if let project::Event::RefreshInlayHints = event {
1470 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1471 };
1472 }));
1473 }
1474 }
1475
1476 let inlay_hint_settings = inlay_hint_settings(
1477 selections.newest_anchor().head(),
1478 &buffer.read(cx).snapshot(cx),
1479 cx,
1480 );
1481
1482 let focus_handle = cx.focus_handle();
1483 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1484 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1485
1486 let mut this = Self {
1487 handle: cx.view().downgrade(),
1488 focus_handle,
1489 buffer: buffer.clone(),
1490 display_map: display_map.clone(),
1491 selections,
1492 scroll_manager: ScrollManager::new(cx),
1493 columnar_selection_tail: None,
1494 add_selections_state: None,
1495 select_next_state: None,
1496 select_prev_state: None,
1497 selection_history: Default::default(),
1498 autoclose_regions: Default::default(),
1499 snippet_stack: Default::default(),
1500 select_larger_syntax_node_stack: Vec::new(),
1501 ime_transaction: Default::default(),
1502 active_diagnostics: None,
1503 soft_wrap_mode_override,
1504 completion_provider: project.clone().map(|project| Box::new(project) as _),
1505 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1506 project,
1507 blink_manager: blink_manager.clone(),
1508 show_local_selections: true,
1509 mode,
1510 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1511 show_gutter: mode == EditorMode::Full,
1512 show_wrap_guides: None,
1513 placeholder_text: None,
1514 highlighted_rows: None,
1515 background_highlights: Default::default(),
1516 inlay_background_highlights: Default::default(),
1517 nav_history: None,
1518 context_menu: RwLock::new(None),
1519 mouse_context_menu: None,
1520 completion_tasks: Default::default(),
1521 next_completion_id: 0,
1522 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1523 next_inlay_id: 0,
1524 available_code_actions: Default::default(),
1525 code_actions_task: Default::default(),
1526 document_highlights_task: Default::default(),
1527 pending_rename: Default::default(),
1528 searchable: true,
1529 cursor_shape: Default::default(),
1530 autoindent_mode: Some(AutoindentMode::EachLine),
1531 collapse_matches: false,
1532 workspace: None,
1533 keymap_context_layers: Default::default(),
1534 input_enabled: true,
1535 use_modal_editing: mode == EditorMode::Full,
1536 read_only: false,
1537 use_autoclose: true,
1538 leader_peer_id: None,
1539 remote_id: None,
1540 hover_state: Default::default(),
1541 hovered_link_state: Default::default(),
1542 copilot_state: Default::default(),
1543 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1544 gutter_hovered: false,
1545 pixel_position_of_newest_cursor: None,
1546 gutter_width: Default::default(),
1547 style: None,
1548 show_cursor_names: false,
1549 hovered_cursors: Default::default(),
1550 editor_actions: Default::default(),
1551 show_copilot_suggestions: mode == EditorMode::Full,
1552 custom_context_menu: None,
1553 _subscriptions: vec![
1554 cx.observe(&buffer, Self::on_buffer_changed),
1555 cx.subscribe(&buffer, Self::on_buffer_event),
1556 cx.observe(&display_map, Self::on_display_map_changed),
1557 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1558 cx.observe_global::<SettingsStore>(Self::settings_changed),
1559 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1560 cx.observe_window_activation(|editor, cx| {
1561 let active = cx.is_window_active();
1562 editor.blink_manager.update(cx, |blink_manager, cx| {
1563 if active {
1564 blink_manager.enable(cx);
1565 } else {
1566 blink_manager.show_cursor(cx);
1567 blink_manager.disable(cx);
1568 }
1569 });
1570 }),
1571 ],
1572 };
1573
1574 this._subscriptions.extend(project_subscriptions);
1575
1576 this.end_selection(cx);
1577 this.scroll_manager.show_scrollbar(cx);
1578
1579 if mode == EditorMode::Full {
1580 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1581 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1582 }
1583
1584 this.report_editor_event("open", None, cx);
1585 this
1586 }
1587
1588 fn key_context(&self, cx: &AppContext) -> KeyContext {
1589 let mut key_context = KeyContext::default();
1590 key_context.add("Editor");
1591 let mode = match self.mode {
1592 EditorMode::SingleLine => "single_line",
1593 EditorMode::AutoHeight { .. } => "auto_height",
1594 EditorMode::Full => "full",
1595 };
1596 key_context.set("mode", mode);
1597 if self.pending_rename.is_some() {
1598 key_context.add("renaming");
1599 }
1600 if self.context_menu_visible() {
1601 match self.context_menu.read().as_ref() {
1602 Some(ContextMenu::Completions(_)) => {
1603 key_context.add("menu");
1604 key_context.add("showing_completions")
1605 }
1606 Some(ContextMenu::CodeActions(_)) => {
1607 key_context.add("menu");
1608 key_context.add("showing_code_actions")
1609 }
1610 None => {}
1611 }
1612 }
1613
1614 for layer in self.keymap_context_layers.values() {
1615 key_context.extend(layer);
1616 }
1617
1618 if let Some(extension) = self
1619 .buffer
1620 .read(cx)
1621 .as_singleton()
1622 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1623 {
1624 key_context.set("extension", extension.to_string());
1625 }
1626
1627 key_context
1628 }
1629
1630 pub fn new_file(
1631 workspace: &mut Workspace,
1632 _: &workspace::NewFile,
1633 cx: &mut ViewContext<Workspace>,
1634 ) {
1635 let project = workspace.project().clone();
1636 if project.read(cx).is_remote() {
1637 cx.propagate();
1638 } else if let Some(buffer) = project
1639 .update(cx, |project, cx| project.create_buffer("", None, cx))
1640 .log_err()
1641 {
1642 workspace.add_item(
1643 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1644 cx,
1645 );
1646 }
1647 }
1648
1649 pub fn new_file_in_direction(
1650 workspace: &mut Workspace,
1651 action: &workspace::NewFileInDirection,
1652 cx: &mut ViewContext<Workspace>,
1653 ) {
1654 let project = workspace.project().clone();
1655 if project.read(cx).is_remote() {
1656 cx.propagate();
1657 } else if let Some(buffer) = project
1658 .update(cx, |project, cx| project.create_buffer("", None, cx))
1659 .log_err()
1660 {
1661 workspace.split_item(
1662 action.0,
1663 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1664 cx,
1665 );
1666 }
1667 }
1668
1669 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1670 self.buffer.read(cx).replica_id()
1671 }
1672
1673 pub fn leader_peer_id(&self) -> Option<PeerId> {
1674 self.leader_peer_id
1675 }
1676
1677 pub fn buffer(&self) -> &Model<MultiBuffer> {
1678 &self.buffer
1679 }
1680
1681 pub fn workspace(&self) -> Option<View<Workspace>> {
1682 self.workspace.as_ref()?.0.upgrade()
1683 }
1684
1685 pub fn pane(&self, cx: &AppContext) -> Option<View<Pane>> {
1686 self.workspace()?.read(cx).pane_for(&self.handle.upgrade()?)
1687 }
1688
1689 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1690 self.buffer().read(cx).title(cx)
1691 }
1692
1693 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1694 EditorSnapshot {
1695 mode: self.mode,
1696 show_gutter: self.show_gutter,
1697 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1698 scroll_anchor: self.scroll_manager.anchor(),
1699 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1700 placeholder_text: self.placeholder_text.clone(),
1701 is_focused: self.focus_handle.is_focused(cx),
1702 }
1703 }
1704
1705 pub fn language_at<'a, T: ToOffset>(
1706 &self,
1707 point: T,
1708 cx: &'a AppContext,
1709 ) -> Option<Arc<Language>> {
1710 self.buffer.read(cx).language_at(point, cx)
1711 }
1712
1713 pub fn file_at<'a, T: ToOffset>(
1714 &self,
1715 point: T,
1716 cx: &'a AppContext,
1717 ) -> Option<Arc<dyn language::File>> {
1718 self.buffer.read(cx).read(cx).file_at(point).cloned()
1719 }
1720
1721 pub fn active_excerpt(
1722 &self,
1723 cx: &AppContext,
1724 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1725 self.buffer
1726 .read(cx)
1727 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1728 }
1729
1730 pub fn mode(&self) -> EditorMode {
1731 self.mode
1732 }
1733
1734 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1735 self.collaboration_hub.as_deref()
1736 }
1737
1738 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1739 self.collaboration_hub = Some(hub);
1740 }
1741
1742 pub fn set_custom_context_menu(
1743 &mut self,
1744 f: impl 'static
1745 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1746 ) {
1747 self.custom_context_menu = Some(Box::new(f))
1748 }
1749
1750 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1751 self.completion_provider = Some(hub);
1752 }
1753
1754 pub fn placeholder_text(&self) -> Option<&str> {
1755 self.placeholder_text.as_deref()
1756 }
1757
1758 pub fn set_placeholder_text(
1759 &mut self,
1760 placeholder_text: impl Into<Arc<str>>,
1761 cx: &mut ViewContext<Self>,
1762 ) {
1763 let placeholder_text = Some(placeholder_text.into());
1764 if self.placeholder_text != placeholder_text {
1765 self.placeholder_text = placeholder_text;
1766 cx.notify();
1767 }
1768 }
1769
1770 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1771 self.cursor_shape = cursor_shape;
1772 cx.notify();
1773 }
1774
1775 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1776 self.collapse_matches = collapse_matches;
1777 }
1778
1779 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1780 if self.collapse_matches {
1781 return range.start..range.start;
1782 }
1783 range.clone()
1784 }
1785
1786 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1787 if self.display_map.read(cx).clip_at_line_ends != clip {
1788 self.display_map
1789 .update(cx, |map, _| map.clip_at_line_ends = clip);
1790 }
1791 }
1792
1793 pub fn set_keymap_context_layer<Tag: 'static>(
1794 &mut self,
1795 context: KeyContext,
1796 cx: &mut ViewContext<Self>,
1797 ) {
1798 self.keymap_context_layers
1799 .insert(TypeId::of::<Tag>(), context);
1800 cx.notify();
1801 }
1802
1803 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1804 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1805 cx.notify();
1806 }
1807
1808 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1809 self.input_enabled = input_enabled;
1810 }
1811
1812 pub fn set_autoindent(&mut self, autoindent: bool) {
1813 if autoindent {
1814 self.autoindent_mode = Some(AutoindentMode::EachLine);
1815 } else {
1816 self.autoindent_mode = None;
1817 }
1818 }
1819
1820 pub fn read_only(&self, cx: &AppContext) -> bool {
1821 self.read_only || self.buffer.read(cx).read_only()
1822 }
1823
1824 pub fn set_read_only(&mut self, read_only: bool) {
1825 self.read_only = read_only;
1826 }
1827
1828 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1829 self.use_autoclose = autoclose;
1830 }
1831
1832 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1833 self.show_copilot_suggestions = show_copilot_suggestions;
1834 }
1835
1836 pub fn set_use_modal_editing(&mut self, to: bool) {
1837 self.use_modal_editing = to;
1838 }
1839
1840 pub fn use_modal_editing(&self) -> bool {
1841 self.use_modal_editing
1842 }
1843
1844 fn selections_did_change(
1845 &mut self,
1846 local: bool,
1847 old_cursor_position: &Anchor,
1848 cx: &mut ViewContext<Self>,
1849 ) {
1850 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1851 self.buffer.update(cx, |buffer, cx| {
1852 buffer.set_active_selections(
1853 &self.selections.disjoint_anchors(),
1854 self.selections.line_mode,
1855 self.cursor_shape,
1856 cx,
1857 )
1858 });
1859 }
1860
1861 let display_map = self
1862 .display_map
1863 .update(cx, |display_map, cx| display_map.snapshot(cx));
1864 let buffer = &display_map.buffer_snapshot;
1865 self.add_selections_state = None;
1866 self.select_next_state = None;
1867 self.select_prev_state = None;
1868 self.select_larger_syntax_node_stack.clear();
1869 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1870 self.snippet_stack
1871 .invalidate(&self.selections.disjoint_anchors(), buffer);
1872 self.take_rename(false, cx);
1873
1874 let new_cursor_position = self.selections.newest_anchor().head();
1875
1876 self.push_to_nav_history(
1877 old_cursor_position.clone(),
1878 Some(new_cursor_position.to_point(buffer)),
1879 cx,
1880 );
1881
1882 if local {
1883 let new_cursor_position = self.selections.newest_anchor().head();
1884 let mut context_menu = self.context_menu.write();
1885 let completion_menu = match context_menu.as_ref() {
1886 Some(ContextMenu::Completions(menu)) => Some(menu),
1887
1888 _ => {
1889 *context_menu = None;
1890 None
1891 }
1892 };
1893
1894 if let Some(completion_menu) = completion_menu {
1895 let cursor_position = new_cursor_position.to_offset(buffer);
1896 let (word_range, kind) =
1897 buffer.surrounding_word(completion_menu.initial_position.clone());
1898 if kind == Some(CharKind::Word)
1899 && word_range.to_inclusive().contains(&cursor_position)
1900 {
1901 let mut completion_menu = completion_menu.clone();
1902 drop(context_menu);
1903
1904 let query = Self::completion_query(buffer, cursor_position);
1905 cx.spawn(move |this, mut cx| async move {
1906 completion_menu
1907 .filter(query.as_deref(), cx.background_executor().clone())
1908 .await;
1909
1910 this.update(&mut cx, |this, cx| {
1911 let mut context_menu = this.context_menu.write();
1912 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1913 return;
1914 };
1915
1916 if menu.id > completion_menu.id {
1917 return;
1918 }
1919
1920 *context_menu = Some(ContextMenu::Completions(completion_menu));
1921 drop(context_menu);
1922 cx.notify();
1923 })
1924 })
1925 .detach();
1926
1927 self.show_completions(&ShowCompletions, cx);
1928 } else {
1929 drop(context_menu);
1930 self.hide_context_menu(cx);
1931 }
1932 } else {
1933 drop(context_menu);
1934 }
1935
1936 hide_hover(self, cx);
1937
1938 if old_cursor_position.to_display_point(&display_map).row()
1939 != new_cursor_position.to_display_point(&display_map).row()
1940 {
1941 self.available_code_actions.take();
1942 }
1943 self.refresh_code_actions(cx);
1944 self.refresh_document_highlights(cx);
1945 refresh_matching_bracket_highlights(self, cx);
1946 self.discard_copilot_suggestion(cx);
1947 }
1948
1949 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1950 cx.emit(EditorEvent::SelectionsChanged { local });
1951
1952 if self.selections.disjoint_anchors().len() == 1 {
1953 cx.emit(SearchEvent::ActiveMatchChanged)
1954 }
1955
1956 cx.notify();
1957 }
1958
1959 pub fn change_selections<R>(
1960 &mut self,
1961 autoscroll: Option<Autoscroll>,
1962 cx: &mut ViewContext<Self>,
1963 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1964 ) -> R {
1965 let old_cursor_position = self.selections.newest_anchor().head();
1966 self.push_to_selection_history();
1967
1968 let (changed, result) = self.selections.change_with(cx, change);
1969
1970 if changed {
1971 if let Some(autoscroll) = autoscroll {
1972 self.request_autoscroll(autoscroll, cx);
1973 }
1974 self.selections_did_change(true, &old_cursor_position, cx);
1975 }
1976
1977 result
1978 }
1979
1980 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1981 where
1982 I: IntoIterator<Item = (Range<S>, T)>,
1983 S: ToOffset,
1984 T: Into<Arc<str>>,
1985 {
1986 if self.read_only(cx) {
1987 return;
1988 }
1989
1990 self.buffer
1991 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1992 }
1993
1994 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1995 where
1996 I: IntoIterator<Item = (Range<S>, T)>,
1997 S: ToOffset,
1998 T: Into<Arc<str>>,
1999 {
2000 if self.read_only(cx) {
2001 return;
2002 }
2003
2004 self.buffer.update(cx, |buffer, cx| {
2005 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2006 });
2007 }
2008
2009 pub fn edit_with_block_indent<I, S, T>(
2010 &mut self,
2011 edits: I,
2012 original_indent_columns: Vec<u32>,
2013 cx: &mut ViewContext<Self>,
2014 ) where
2015 I: IntoIterator<Item = (Range<S>, T)>,
2016 S: ToOffset,
2017 T: Into<Arc<str>>,
2018 {
2019 if self.read_only(cx) {
2020 return;
2021 }
2022
2023 self.buffer.update(cx, |buffer, cx| {
2024 buffer.edit(
2025 edits,
2026 Some(AutoindentMode::Block {
2027 original_indent_columns,
2028 }),
2029 cx,
2030 )
2031 });
2032 }
2033
2034 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2035 self.hide_context_menu(cx);
2036
2037 match phase {
2038 SelectPhase::Begin {
2039 position,
2040 add,
2041 click_count,
2042 } => self.begin_selection(position, add, click_count, cx),
2043 SelectPhase::BeginColumnar {
2044 position,
2045 goal_column,
2046 } => self.begin_columnar_selection(position, goal_column, cx),
2047 SelectPhase::Extend {
2048 position,
2049 click_count,
2050 } => self.extend_selection(position, click_count, cx),
2051 SelectPhase::Update {
2052 position,
2053 goal_column,
2054 scroll_delta,
2055 } => self.update_selection(position, goal_column, scroll_delta, cx),
2056 SelectPhase::End => self.end_selection(cx),
2057 }
2058 }
2059
2060 fn extend_selection(
2061 &mut self,
2062 position: DisplayPoint,
2063 click_count: usize,
2064 cx: &mut ViewContext<Self>,
2065 ) {
2066 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2067 let tail = self.selections.newest::<usize>(cx).tail();
2068 self.begin_selection(position, false, click_count, cx);
2069
2070 let position = position.to_offset(&display_map, Bias::Left);
2071 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2072
2073 let mut pending_selection = self
2074 .selections
2075 .pending_anchor()
2076 .expect("extend_selection not called with pending selection");
2077 if position >= tail {
2078 pending_selection.start = tail_anchor;
2079 } else {
2080 pending_selection.end = tail_anchor;
2081 pending_selection.reversed = true;
2082 }
2083
2084 let mut pending_mode = self.selections.pending_mode().unwrap();
2085 match &mut pending_mode {
2086 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2087 _ => {}
2088 }
2089
2090 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2091 s.set_pending(pending_selection, pending_mode)
2092 });
2093 }
2094
2095 fn begin_selection(
2096 &mut self,
2097 position: DisplayPoint,
2098 add: bool,
2099 click_count: usize,
2100 cx: &mut ViewContext<Self>,
2101 ) {
2102 if !self.focus_handle.is_focused(cx) {
2103 cx.focus(&self.focus_handle);
2104 }
2105
2106 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2107 let buffer = &display_map.buffer_snapshot;
2108 let newest_selection = self.selections.newest_anchor().clone();
2109 let position = display_map.clip_point(position, Bias::Left);
2110
2111 let start;
2112 let end;
2113 let mode;
2114 let auto_scroll;
2115 match click_count {
2116 1 => {
2117 start = buffer.anchor_before(position.to_point(&display_map));
2118 end = start.clone();
2119 mode = SelectMode::Character;
2120 auto_scroll = true;
2121 }
2122 2 => {
2123 let range = movement::surrounding_word(&display_map, position);
2124 start = buffer.anchor_before(range.start.to_point(&display_map));
2125 end = buffer.anchor_before(range.end.to_point(&display_map));
2126 mode = SelectMode::Word(start.clone()..end.clone());
2127 auto_scroll = true;
2128 }
2129 3 => {
2130 let position = display_map
2131 .clip_point(position, Bias::Left)
2132 .to_point(&display_map);
2133 let line_start = display_map.prev_line_boundary(position).0;
2134 let next_line_start = buffer.clip_point(
2135 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2136 Bias::Left,
2137 );
2138 start = buffer.anchor_before(line_start);
2139 end = buffer.anchor_before(next_line_start);
2140 mode = SelectMode::Line(start.clone()..end.clone());
2141 auto_scroll = true;
2142 }
2143 _ => {
2144 start = buffer.anchor_before(0);
2145 end = buffer.anchor_before(buffer.len());
2146 mode = SelectMode::All;
2147 auto_scroll = false;
2148 }
2149 }
2150
2151 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2152 if !add {
2153 s.clear_disjoint();
2154 } else if click_count > 1 {
2155 s.delete(newest_selection.id)
2156 }
2157
2158 s.set_pending_anchor_range(start..end, mode);
2159 });
2160 }
2161
2162 fn begin_columnar_selection(
2163 &mut self,
2164 position: DisplayPoint,
2165 goal_column: u32,
2166 cx: &mut ViewContext<Self>,
2167 ) {
2168 if !self.focus_handle.is_focused(cx) {
2169 cx.focus(&self.focus_handle);
2170 }
2171
2172 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2173 let tail = self.selections.newest::<Point>(cx).tail();
2174 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2175
2176 self.select_columns(
2177 tail.to_display_point(&display_map),
2178 position,
2179 goal_column,
2180 &display_map,
2181 cx,
2182 );
2183 }
2184
2185 fn update_selection(
2186 &mut self,
2187 position: DisplayPoint,
2188 goal_column: u32,
2189 scroll_delta: gpui::Point<f32>,
2190 cx: &mut ViewContext<Self>,
2191 ) {
2192 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2193
2194 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2195 let tail = tail.to_display_point(&display_map);
2196 self.select_columns(tail, position, goal_column, &display_map, cx);
2197 } else if let Some(mut pending) = self.selections.pending_anchor() {
2198 let buffer = self.buffer.read(cx).snapshot(cx);
2199 let head;
2200 let tail;
2201 let mode = self.selections.pending_mode().unwrap();
2202 match &mode {
2203 SelectMode::Character => {
2204 head = position.to_point(&display_map);
2205 tail = pending.tail().to_point(&buffer);
2206 }
2207 SelectMode::Word(original_range) => {
2208 let original_display_range = original_range.start.to_display_point(&display_map)
2209 ..original_range.end.to_display_point(&display_map);
2210 let original_buffer_range = original_display_range.start.to_point(&display_map)
2211 ..original_display_range.end.to_point(&display_map);
2212 if movement::is_inside_word(&display_map, position)
2213 || original_display_range.contains(&position)
2214 {
2215 let word_range = movement::surrounding_word(&display_map, position);
2216 if word_range.start < original_display_range.start {
2217 head = word_range.start.to_point(&display_map);
2218 } else {
2219 head = word_range.end.to_point(&display_map);
2220 }
2221 } else {
2222 head = position.to_point(&display_map);
2223 }
2224
2225 if head <= original_buffer_range.start {
2226 tail = original_buffer_range.end;
2227 } else {
2228 tail = original_buffer_range.start;
2229 }
2230 }
2231 SelectMode::Line(original_range) => {
2232 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2233
2234 let position = display_map
2235 .clip_point(position, Bias::Left)
2236 .to_point(&display_map);
2237 let line_start = display_map.prev_line_boundary(position).0;
2238 let next_line_start = buffer.clip_point(
2239 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2240 Bias::Left,
2241 );
2242
2243 if line_start < original_range.start {
2244 head = line_start
2245 } else {
2246 head = next_line_start
2247 }
2248
2249 if head <= original_range.start {
2250 tail = original_range.end;
2251 } else {
2252 tail = original_range.start;
2253 }
2254 }
2255 SelectMode::All => {
2256 return;
2257 }
2258 };
2259
2260 if head < tail {
2261 pending.start = buffer.anchor_before(head);
2262 pending.end = buffer.anchor_before(tail);
2263 pending.reversed = true;
2264 } else {
2265 pending.start = buffer.anchor_before(tail);
2266 pending.end = buffer.anchor_before(head);
2267 pending.reversed = false;
2268 }
2269
2270 self.change_selections(None, cx, |s| {
2271 s.set_pending(pending, mode);
2272 });
2273 } else {
2274 log::error!("update_selection dispatched with no pending selection");
2275 return;
2276 }
2277
2278 self.apply_scroll_delta(scroll_delta, cx);
2279 cx.notify();
2280 }
2281
2282 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2283 self.columnar_selection_tail.take();
2284 if self.selections.pending_anchor().is_some() {
2285 let selections = self.selections.all::<usize>(cx);
2286 self.change_selections(None, cx, |s| {
2287 s.select(selections);
2288 s.clear_pending();
2289 });
2290 }
2291 }
2292
2293 fn select_columns(
2294 &mut self,
2295 tail: DisplayPoint,
2296 head: DisplayPoint,
2297 goal_column: u32,
2298 display_map: &DisplaySnapshot,
2299 cx: &mut ViewContext<Self>,
2300 ) {
2301 let start_row = cmp::min(tail.row(), head.row());
2302 let end_row = cmp::max(tail.row(), head.row());
2303 let start_column = cmp::min(tail.column(), goal_column);
2304 let end_column = cmp::max(tail.column(), goal_column);
2305 let reversed = start_column < tail.column();
2306
2307 let selection_ranges = (start_row..=end_row)
2308 .filter_map(|row| {
2309 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2310 let start = display_map
2311 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2312 .to_point(display_map);
2313 let end = display_map
2314 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2315 .to_point(display_map);
2316 if reversed {
2317 Some(end..start)
2318 } else {
2319 Some(start..end)
2320 }
2321 } else {
2322 None
2323 }
2324 })
2325 .collect::<Vec<_>>();
2326
2327 self.change_selections(None, cx, |s| {
2328 s.select_ranges(selection_ranges);
2329 });
2330 cx.notify();
2331 }
2332
2333 pub fn has_pending_nonempty_selection(&self) -> bool {
2334 let pending_nonempty_selection = match self.selections.pending_anchor() {
2335 Some(Selection { start, end, .. }) => start != end,
2336 None => false,
2337 };
2338 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2339 }
2340
2341 pub fn has_pending_selection(&self) -> bool {
2342 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2343 }
2344
2345 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2346 if self.take_rename(false, cx).is_some() {
2347 return;
2348 }
2349
2350 if hide_hover(self, cx) {
2351 return;
2352 }
2353
2354 if self.hide_context_menu(cx).is_some() {
2355 return;
2356 }
2357
2358 if self.discard_copilot_suggestion(cx) {
2359 return;
2360 }
2361
2362 if self.snippet_stack.pop().is_some() {
2363 return;
2364 }
2365
2366 if self.mode == EditorMode::Full {
2367 if self.active_diagnostics.is_some() {
2368 self.dismiss_diagnostics(cx);
2369 return;
2370 }
2371
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 handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2381 let text: Arc<str> = text.into();
2382
2383 if self.read_only(cx) {
2384 return;
2385 }
2386
2387 let selections = self.selections.all_adjusted(cx);
2388 let mut brace_inserted = false;
2389 let mut edits = Vec::new();
2390 let mut new_selections = Vec::with_capacity(selections.len());
2391 let mut new_autoclose_regions = Vec::new();
2392 let snapshot = self.buffer.read(cx).read(cx);
2393
2394 for (selection, autoclose_region) in
2395 self.selections_with_autoclose_regions(selections, &snapshot)
2396 {
2397 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2398 // Determine if the inserted text matches the opening or closing
2399 // bracket of any of this language's bracket pairs.
2400 let mut bracket_pair = None;
2401 let mut is_bracket_pair_start = false;
2402 if !text.is_empty() {
2403 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2404 // and they are removing the character that triggered IME popup.
2405 for (pair, enabled) in scope.brackets() {
2406 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2407 bracket_pair = Some(pair.clone());
2408 is_bracket_pair_start = true;
2409 break;
2410 } else if pair.end.as_str() == text.as_ref() {
2411 bracket_pair = Some(pair.clone());
2412 break;
2413 }
2414 }
2415 }
2416
2417 if let Some(bracket_pair) = bracket_pair {
2418 if selection.is_empty() {
2419 if is_bracket_pair_start {
2420 let prefix_len = bracket_pair.start.len() - text.len();
2421
2422 // If the inserted text is a suffix of an opening bracket and the
2423 // selection is preceded by the rest of the opening bracket, then
2424 // insert the closing bracket.
2425 let following_text_allows_autoclose = snapshot
2426 .chars_at(selection.start)
2427 .next()
2428 .map_or(true, |c| scope.should_autoclose_before(c));
2429 let preceding_text_matches_prefix = prefix_len == 0
2430 || (selection.start.column >= (prefix_len as u32)
2431 && snapshot.contains_str_at(
2432 Point::new(
2433 selection.start.row,
2434 selection.start.column - (prefix_len as u32),
2435 ),
2436 &bracket_pair.start[..prefix_len],
2437 ));
2438 let autoclose = self.use_autoclose
2439 && snapshot.settings_at(selection.start, cx).use_autoclose;
2440 if autoclose
2441 && following_text_allows_autoclose
2442 && preceding_text_matches_prefix
2443 {
2444 let anchor = snapshot.anchor_before(selection.end);
2445 new_selections.push((selection.map(|_| anchor), text.len()));
2446 new_autoclose_regions.push((
2447 anchor,
2448 text.len(),
2449 selection.id,
2450 bracket_pair.clone(),
2451 ));
2452 edits.push((
2453 selection.range(),
2454 format!("{}{}", text, bracket_pair.end).into(),
2455 ));
2456 brace_inserted = true;
2457 continue;
2458 }
2459 }
2460
2461 if let Some(region) = autoclose_region {
2462 // If the selection is followed by an auto-inserted closing bracket,
2463 // then don't insert that closing bracket again; just move the selection
2464 // past the closing bracket.
2465 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2466 && text.as_ref() == region.pair.end.as_str();
2467 if should_skip {
2468 let anchor = snapshot.anchor_after(selection.end);
2469 new_selections
2470 .push((selection.map(|_| anchor), region.pair.end.len()));
2471 continue;
2472 }
2473 }
2474 }
2475 // If an opening bracket is 1 character long and is typed while
2476 // text is selected, then surround that text with the bracket pair.
2477 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2478 edits.push((selection.start..selection.start, text.clone()));
2479 edits.push((
2480 selection.end..selection.end,
2481 bracket_pair.end.as_str().into(),
2482 ));
2483 brace_inserted = true;
2484 new_selections.push((
2485 Selection {
2486 id: selection.id,
2487 start: snapshot.anchor_after(selection.start),
2488 end: snapshot.anchor_before(selection.end),
2489 reversed: selection.reversed,
2490 goal: selection.goal,
2491 },
2492 0,
2493 ));
2494 continue;
2495 }
2496 }
2497 }
2498
2499 // If not handling any auto-close operation, then just replace the selected
2500 // text with the given input and move the selection to the end of the
2501 // newly inserted text.
2502 let anchor = snapshot.anchor_after(selection.end);
2503 new_selections.push((selection.map(|_| anchor), 0));
2504 edits.push((selection.start..selection.end, text.clone()));
2505 }
2506
2507 drop(snapshot);
2508 self.transact(cx, |this, cx| {
2509 this.buffer.update(cx, |buffer, cx| {
2510 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2511 });
2512
2513 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2514 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2515 let snapshot = this.buffer.read(cx).read(cx);
2516 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2517 .zip(new_selection_deltas)
2518 .map(|(selection, delta)| Selection {
2519 id: selection.id,
2520 start: selection.start + delta,
2521 end: selection.end + delta,
2522 reversed: selection.reversed,
2523 goal: SelectionGoal::None,
2524 })
2525 .collect::<Vec<_>>();
2526
2527 let mut i = 0;
2528 for (position, delta, selection_id, pair) in new_autoclose_regions {
2529 let position = position.to_offset(&snapshot) + delta;
2530 let start = snapshot.anchor_before(position);
2531 let end = snapshot.anchor_after(position);
2532 while let Some(existing_state) = this.autoclose_regions.get(i) {
2533 match existing_state.range.start.cmp(&start, &snapshot) {
2534 Ordering::Less => i += 1,
2535 Ordering::Greater => break,
2536 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2537 Ordering::Less => i += 1,
2538 Ordering::Equal => break,
2539 Ordering::Greater => break,
2540 },
2541 }
2542 }
2543 this.autoclose_regions.insert(
2544 i,
2545 AutocloseRegion {
2546 selection_id,
2547 range: start..end,
2548 pair,
2549 },
2550 );
2551 }
2552
2553 drop(snapshot);
2554 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2555 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2556
2557 if brace_inserted {
2558 // If we inserted a brace while composing text (i.e. typing `"` on a
2559 // Brazilian keyboard), exit the composing state because most likely
2560 // the user wanted to surround the selection.
2561 this.unmark_text(cx);
2562 } else if EditorSettings::get_global(cx).use_on_type_format {
2563 if let Some(on_type_format_task) =
2564 this.trigger_on_type_formatting(text.to_string(), cx)
2565 {
2566 on_type_format_task.detach_and_log_err(cx);
2567 }
2568 }
2569
2570 if had_active_copilot_suggestion {
2571 this.refresh_copilot_suggestions(true, cx);
2572 if !this.has_active_copilot_suggestion(cx) {
2573 this.trigger_completion_on_input(&text, cx);
2574 }
2575 } else {
2576 this.trigger_completion_on_input(&text, cx);
2577 this.refresh_copilot_suggestions(true, cx);
2578 }
2579 });
2580 }
2581
2582 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2583 self.transact(cx, |this, cx| {
2584 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2585 let selections = this.selections.all::<usize>(cx);
2586 let multi_buffer = this.buffer.read(cx);
2587 let buffer = multi_buffer.snapshot(cx);
2588 selections
2589 .iter()
2590 .map(|selection| {
2591 let start_point = selection.start.to_point(&buffer);
2592 let mut indent = buffer.indent_size_for_line(start_point.row);
2593 indent.len = cmp::min(indent.len, start_point.column);
2594 let start = selection.start;
2595 let end = selection.end;
2596 let is_cursor = start == end;
2597 let language_scope = buffer.language_scope_at(start);
2598 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2599 &language_scope
2600 {
2601 let leading_whitespace_len = buffer
2602 .reversed_chars_at(start)
2603 .take_while(|c| c.is_whitespace() && *c != '\n')
2604 .map(|c| c.len_utf8())
2605 .sum::<usize>();
2606
2607 let trailing_whitespace_len = buffer
2608 .chars_at(end)
2609 .take_while(|c| c.is_whitespace() && *c != '\n')
2610 .map(|c| c.len_utf8())
2611 .sum::<usize>();
2612
2613 let insert_extra_newline =
2614 language.brackets().any(|(pair, enabled)| {
2615 let pair_start = pair.start.trim_end();
2616 let pair_end = pair.end.trim_start();
2617
2618 enabled
2619 && pair.newline
2620 && buffer.contains_str_at(
2621 end + trailing_whitespace_len,
2622 pair_end,
2623 )
2624 && buffer.contains_str_at(
2625 (start - leading_whitespace_len)
2626 .saturating_sub(pair_start.len()),
2627 pair_start,
2628 )
2629 });
2630 // Comment extension on newline is allowed only for cursor selections
2631 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2632 let is_comment_extension_enabled =
2633 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2634 is_cursor && is_comment_extension_enabled
2635 });
2636 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2637 let max_len_of_delimiter =
2638 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2639 let (snapshot, range) =
2640 buffer.buffer_line_for_row(start_point.row)?;
2641
2642 let mut index_of_first_non_whitespace = 0;
2643 let comment_candidate = snapshot
2644 .chars_for_range(range)
2645 .skip_while(|c| {
2646 let should_skip = c.is_whitespace();
2647 if should_skip {
2648 index_of_first_non_whitespace += 1;
2649 }
2650 should_skip
2651 })
2652 .take(max_len_of_delimiter)
2653 .collect::<String>();
2654 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2655 comment_candidate.starts_with(comment_prefix.as_ref())
2656 })?;
2657 let cursor_is_placed_after_comment_marker =
2658 index_of_first_non_whitespace + comment_prefix.len()
2659 <= start_point.column as usize;
2660 if cursor_is_placed_after_comment_marker {
2661 Some(comment_prefix.clone())
2662 } else {
2663 None
2664 }
2665 };
2666 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2667 get_comment_delimiter(delimiters)
2668 } else {
2669 None
2670 };
2671 (comment_delimiter, insert_extra_newline)
2672 } else {
2673 (None, false)
2674 };
2675
2676 let capacity_for_delimiter = comment_delimiter
2677 .as_deref()
2678 .map(str::len)
2679 .unwrap_or_default();
2680 let mut new_text =
2681 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2682 new_text.push_str("\n");
2683 new_text.extend(indent.chars());
2684 if let Some(delimiter) = &comment_delimiter {
2685 new_text.push_str(&delimiter);
2686 }
2687 if insert_extra_newline {
2688 new_text = new_text.repeat(2);
2689 }
2690
2691 let anchor = buffer.anchor_after(end);
2692 let new_selection = selection.map(|_| anchor);
2693 (
2694 (start..end, new_text),
2695 (insert_extra_newline, new_selection),
2696 )
2697 })
2698 .unzip()
2699 };
2700
2701 this.edit_with_autoindent(edits, cx);
2702 let buffer = this.buffer.read(cx).snapshot(cx);
2703 let new_selections = selection_fixup_info
2704 .into_iter()
2705 .map(|(extra_newline_inserted, new_selection)| {
2706 let mut cursor = new_selection.end.to_point(&buffer);
2707 if extra_newline_inserted {
2708 cursor.row -= 1;
2709 cursor.column = buffer.line_len(cursor.row);
2710 }
2711 new_selection.map(|_| cursor)
2712 })
2713 .collect();
2714
2715 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2716 this.refresh_copilot_suggestions(true, cx);
2717 });
2718 }
2719
2720 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2721 let buffer = self.buffer.read(cx);
2722 let snapshot = buffer.snapshot(cx);
2723
2724 let mut edits = Vec::new();
2725 let mut rows = Vec::new();
2726 let mut rows_inserted = 0;
2727
2728 for selection in self.selections.all_adjusted(cx) {
2729 let cursor = selection.head();
2730 let row = cursor.row;
2731
2732 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2733
2734 let newline = "\n".to_string();
2735 edits.push((start_of_line..start_of_line, newline));
2736
2737 rows.push(row + rows_inserted);
2738 rows_inserted += 1;
2739 }
2740
2741 self.transact(cx, |editor, cx| {
2742 editor.edit(edits, cx);
2743
2744 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2745 let mut index = 0;
2746 s.move_cursors_with(|map, _, _| {
2747 let row = rows[index];
2748 index += 1;
2749
2750 let point = Point::new(row, 0);
2751 let boundary = map.next_line_boundary(point).1;
2752 let clipped = map.clip_point(boundary, Bias::Left);
2753
2754 (clipped, SelectionGoal::None)
2755 });
2756 });
2757
2758 let mut indent_edits = Vec::new();
2759 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2760 for row in rows {
2761 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2762 for (row, indent) in indents {
2763 if indent.len == 0 {
2764 continue;
2765 }
2766
2767 let text = match indent.kind {
2768 IndentKind::Space => " ".repeat(indent.len as usize),
2769 IndentKind::Tab => "\t".repeat(indent.len as usize),
2770 };
2771 let point = Point::new(row, 0);
2772 indent_edits.push((point..point, text));
2773 }
2774 }
2775 editor.edit(indent_edits, cx);
2776 });
2777 }
2778
2779 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2780 let buffer = self.buffer.read(cx);
2781 let snapshot = buffer.snapshot(cx);
2782
2783 let mut edits = Vec::new();
2784 let mut rows = Vec::new();
2785 let mut rows_inserted = 0;
2786
2787 for selection in self.selections.all_adjusted(cx) {
2788 let cursor = selection.head();
2789 let row = cursor.row;
2790
2791 let point = Point::new(row + 1, 0);
2792 let start_of_line = snapshot.clip_point(point, Bias::Left);
2793
2794 let newline = "\n".to_string();
2795 edits.push((start_of_line..start_of_line, newline));
2796
2797 rows_inserted += 1;
2798 rows.push(row + rows_inserted);
2799 }
2800
2801 self.transact(cx, |editor, cx| {
2802 editor.edit(edits, cx);
2803
2804 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2805 let mut index = 0;
2806 s.move_cursors_with(|map, _, _| {
2807 let row = rows[index];
2808 index += 1;
2809
2810 let point = Point::new(row, 0);
2811 let boundary = map.next_line_boundary(point).1;
2812 let clipped = map.clip_point(boundary, Bias::Left);
2813
2814 (clipped, SelectionGoal::None)
2815 });
2816 });
2817
2818 let mut indent_edits = Vec::new();
2819 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2820 for row in rows {
2821 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2822 for (row, indent) in indents {
2823 if indent.len == 0 {
2824 continue;
2825 }
2826
2827 let text = match indent.kind {
2828 IndentKind::Space => " ".repeat(indent.len as usize),
2829 IndentKind::Tab => "\t".repeat(indent.len as usize),
2830 };
2831 let point = Point::new(row, 0);
2832 indent_edits.push((point..point, text));
2833 }
2834 }
2835 editor.edit(indent_edits, cx);
2836 });
2837 }
2838
2839 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2840 self.insert_with_autoindent_mode(
2841 text,
2842 Some(AutoindentMode::Block {
2843 original_indent_columns: Vec::new(),
2844 }),
2845 cx,
2846 );
2847 }
2848
2849 fn insert_with_autoindent_mode(
2850 &mut self,
2851 text: &str,
2852 autoindent_mode: Option<AutoindentMode>,
2853 cx: &mut ViewContext<Self>,
2854 ) {
2855 if self.read_only(cx) {
2856 return;
2857 }
2858
2859 let text: Arc<str> = text.into();
2860 self.transact(cx, |this, cx| {
2861 let old_selections = this.selections.all_adjusted(cx);
2862 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2863 let anchors = {
2864 let snapshot = buffer.read(cx);
2865 old_selections
2866 .iter()
2867 .map(|s| {
2868 let anchor = snapshot.anchor_after(s.head());
2869 s.map(|_| anchor)
2870 })
2871 .collect::<Vec<_>>()
2872 };
2873 buffer.edit(
2874 old_selections
2875 .iter()
2876 .map(|s| (s.start..s.end, text.clone())),
2877 autoindent_mode,
2878 cx,
2879 );
2880 anchors
2881 });
2882
2883 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2884 s.select_anchors(selection_anchors);
2885 })
2886 });
2887 }
2888
2889 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2890 if !EditorSettings::get_global(cx).show_completions_on_input {
2891 return;
2892 }
2893
2894 let selection = self.selections.newest_anchor();
2895 if self
2896 .buffer
2897 .read(cx)
2898 .is_completion_trigger(selection.head(), text, cx)
2899 {
2900 self.show_completions(&ShowCompletions, cx);
2901 } else {
2902 self.hide_context_menu(cx);
2903 }
2904 }
2905
2906 /// If any empty selections is touching the start of its innermost containing autoclose
2907 /// region, expand it to select the brackets.
2908 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2909 let selections = self.selections.all::<usize>(cx);
2910 let buffer = self.buffer.read(cx).read(cx);
2911 let mut new_selections = Vec::new();
2912 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2913 if let (Some(region), true) = (region, selection.is_empty()) {
2914 let mut range = region.range.to_offset(&buffer);
2915 if selection.start == range.start {
2916 if range.start >= region.pair.start.len() {
2917 range.start -= region.pair.start.len();
2918 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2919 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2920 range.end += region.pair.end.len();
2921 selection.start = range.start;
2922 selection.end = range.end;
2923 }
2924 }
2925 }
2926 }
2927 }
2928 new_selections.push(selection);
2929 }
2930
2931 drop(buffer);
2932 self.change_selections(None, cx, |selections| selections.select(new_selections));
2933 }
2934
2935 /// Iterate the given selections, and for each one, find the smallest surrounding
2936 /// autoclose region. This uses the ordering of the selections and the autoclose
2937 /// regions to avoid repeated comparisons.
2938 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2939 &'a self,
2940 selections: impl IntoIterator<Item = Selection<D>>,
2941 buffer: &'a MultiBufferSnapshot,
2942 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2943 let mut i = 0;
2944 let mut regions = self.autoclose_regions.as_slice();
2945 selections.into_iter().map(move |selection| {
2946 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2947
2948 let mut enclosing = None;
2949 while let Some(pair_state) = regions.get(i) {
2950 if pair_state.range.end.to_offset(buffer) < range.start {
2951 regions = ®ions[i + 1..];
2952 i = 0;
2953 } else if pair_state.range.start.to_offset(buffer) > range.end {
2954 break;
2955 } else {
2956 if pair_state.selection_id == selection.id {
2957 enclosing = Some(pair_state);
2958 }
2959 i += 1;
2960 }
2961 }
2962
2963 (selection.clone(), enclosing)
2964 })
2965 }
2966
2967 /// Remove any autoclose regions that no longer contain their selection.
2968 fn invalidate_autoclose_regions(
2969 &mut self,
2970 mut selections: &[Selection<Anchor>],
2971 buffer: &MultiBufferSnapshot,
2972 ) {
2973 self.autoclose_regions.retain(|state| {
2974 let mut i = 0;
2975 while let Some(selection) = selections.get(i) {
2976 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2977 selections = &selections[1..];
2978 continue;
2979 }
2980 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2981 break;
2982 }
2983 if selection.id == state.selection_id {
2984 return true;
2985 } else {
2986 i += 1;
2987 }
2988 }
2989 false
2990 });
2991 }
2992
2993 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
2994 let offset = position.to_offset(buffer);
2995 let (word_range, kind) = buffer.surrounding_word(offset);
2996 if offset > word_range.start && kind == Some(CharKind::Word) {
2997 Some(
2998 buffer
2999 .text_for_range(word_range.start..offset)
3000 .collect::<String>(),
3001 )
3002 } else {
3003 None
3004 }
3005 }
3006
3007 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3008 self.refresh_inlay_hints(
3009 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3010 cx,
3011 );
3012 }
3013
3014 pub fn inlay_hints_enabled(&self) -> bool {
3015 self.inlay_hint_cache.enabled
3016 }
3017
3018 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3019 if self.project.is_none() || self.mode != EditorMode::Full {
3020 return;
3021 }
3022
3023 let reason_description = reason.description();
3024 let (invalidate_cache, required_languages) = match reason {
3025 InlayHintRefreshReason::Toggle(enabled) => {
3026 self.inlay_hint_cache.enabled = enabled;
3027 if enabled {
3028 (InvalidationStrategy::RefreshRequested, None)
3029 } else {
3030 self.inlay_hint_cache.clear();
3031 self.splice_inlay_hints(
3032 self.visible_inlay_hints(cx)
3033 .iter()
3034 .map(|inlay| inlay.id)
3035 .collect(),
3036 Vec::new(),
3037 cx,
3038 );
3039 return;
3040 }
3041 }
3042 InlayHintRefreshReason::SettingsChange(new_settings) => {
3043 match self.inlay_hint_cache.update_settings(
3044 &self.buffer,
3045 new_settings,
3046 self.visible_inlay_hints(cx),
3047 cx,
3048 ) {
3049 ControlFlow::Break(Some(InlaySplice {
3050 to_remove,
3051 to_insert,
3052 })) => {
3053 self.splice_inlay_hints(to_remove, to_insert, cx);
3054 return;
3055 }
3056 ControlFlow::Break(None) => return,
3057 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3058 }
3059 }
3060 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3061 if let Some(InlaySplice {
3062 to_remove,
3063 to_insert,
3064 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3065 {
3066 self.splice_inlay_hints(to_remove, to_insert, cx);
3067 }
3068 return;
3069 }
3070 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3071 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3072 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3073 }
3074 InlayHintRefreshReason::RefreshRequested => {
3075 (InvalidationStrategy::RefreshRequested, None)
3076 }
3077 };
3078
3079 if let Some(InlaySplice {
3080 to_remove,
3081 to_insert,
3082 }) = self.inlay_hint_cache.spawn_hint_refresh(
3083 reason_description,
3084 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3085 invalidate_cache,
3086 cx,
3087 ) {
3088 self.splice_inlay_hints(to_remove, to_insert, cx);
3089 }
3090 }
3091
3092 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3093 self.display_map
3094 .read(cx)
3095 .current_inlays()
3096 .filter(move |inlay| {
3097 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
3098 })
3099 .cloned()
3100 .collect()
3101 }
3102
3103 pub fn excerpts_for_inlay_hints_query(
3104 &self,
3105 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3106 cx: &mut ViewContext<Editor>,
3107 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3108 let Some(project) = self.project.as_ref() else {
3109 return HashMap::default();
3110 };
3111 let project = project.read(cx);
3112 let multi_buffer = self.buffer().read(cx);
3113 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3114 let multi_buffer_visible_start = self
3115 .scroll_manager
3116 .anchor()
3117 .anchor
3118 .to_point(&multi_buffer_snapshot);
3119 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3120 multi_buffer_visible_start
3121 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3122 Bias::Left,
3123 );
3124 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3125 multi_buffer
3126 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3127 .into_iter()
3128 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3129 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3130 let buffer = buffer_handle.read(cx);
3131 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3132 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3133 let worktree_entry = buffer_worktree
3134 .read(cx)
3135 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3136 if worktree_entry.is_ignored {
3137 return None;
3138 }
3139
3140 let language = buffer.language()?;
3141 if let Some(restrict_to_languages) = restrict_to_languages {
3142 if !restrict_to_languages.contains(language) {
3143 return None;
3144 }
3145 }
3146 Some((
3147 excerpt_id,
3148 (
3149 buffer_handle,
3150 buffer.version().clone(),
3151 excerpt_visible_range,
3152 ),
3153 ))
3154 })
3155 .collect()
3156 }
3157
3158 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3159 TextLayoutDetails {
3160 text_system: cx.text_system().clone(),
3161 editor_style: self.style.clone().unwrap(),
3162 rem_size: cx.rem_size(),
3163 scroll_anchor: self.scroll_manager.anchor(),
3164 visible_rows: self.visible_line_count(),
3165 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3166 }
3167 }
3168
3169 fn splice_inlay_hints(
3170 &self,
3171 to_remove: Vec<InlayId>,
3172 to_insert: Vec<Inlay>,
3173 cx: &mut ViewContext<Self>,
3174 ) {
3175 self.display_map.update(cx, |display_map, cx| {
3176 display_map.splice_inlays(to_remove, to_insert, cx);
3177 });
3178 cx.notify();
3179 }
3180
3181 fn trigger_on_type_formatting(
3182 &self,
3183 input: String,
3184 cx: &mut ViewContext<Self>,
3185 ) -> Option<Task<Result<()>>> {
3186 if input.len() != 1 {
3187 return None;
3188 }
3189
3190 let project = self.project.as_ref()?;
3191 let position = self.selections.newest_anchor().head();
3192 let (buffer, buffer_position) = self
3193 .buffer
3194 .read(cx)
3195 .text_anchor_for_position(position.clone(), cx)?;
3196
3197 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3198 // hence we do LSP request & edit on host side only — add formats to host's history.
3199 let push_to_lsp_host_history = true;
3200 // If this is not the host, append its history with new edits.
3201 let push_to_client_history = project.read(cx).is_remote();
3202
3203 let on_type_formatting = project.update(cx, |project, cx| {
3204 project.on_type_format(
3205 buffer.clone(),
3206 buffer_position,
3207 input,
3208 push_to_lsp_host_history,
3209 cx,
3210 )
3211 });
3212 Some(cx.spawn(|editor, mut cx| async move {
3213 if let Some(transaction) = on_type_formatting.await? {
3214 if push_to_client_history {
3215 buffer
3216 .update(&mut cx, |buffer, _| {
3217 buffer.push_transaction(transaction, Instant::now());
3218 })
3219 .ok();
3220 }
3221 editor.update(&mut cx, |editor, cx| {
3222 editor.refresh_document_highlights(cx);
3223 })?;
3224 }
3225 Ok(())
3226 }))
3227 }
3228
3229 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3230 if self.pending_rename.is_some() {
3231 return;
3232 }
3233
3234 let Some(provider) = self.completion_provider.as_ref() else {
3235 return;
3236 };
3237
3238 let position = self.selections.newest_anchor().head();
3239 let (buffer, buffer_position) = if let Some(output) = self
3240 .buffer
3241 .read(cx)
3242 .text_anchor_for_position(position.clone(), cx)
3243 {
3244 output
3245 } else {
3246 return;
3247 };
3248
3249 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3250 let completions = provider.completions(&buffer, buffer_position, cx);
3251
3252 let id = post_inc(&mut self.next_completion_id);
3253 let task = cx.spawn(|this, mut cx| {
3254 async move {
3255 let completions = completions.await.log_err();
3256 let menu = if let Some(completions) = completions {
3257 let mut menu = CompletionsMenu {
3258 id,
3259 initial_position: position,
3260 match_candidates: completions
3261 .iter()
3262 .enumerate()
3263 .map(|(id, completion)| {
3264 StringMatchCandidate::new(
3265 id,
3266 completion.label.text[completion.label.filter_range.clone()]
3267 .into(),
3268 )
3269 })
3270 .collect(),
3271 buffer,
3272 completions: Arc::new(RwLock::new(completions.into())),
3273 matches: Vec::new().into(),
3274 selected_item: 0,
3275 scroll_handle: UniformListScrollHandle::new(),
3276 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3277 DebouncedDelay::new(),
3278 )),
3279 };
3280 menu.filter(query.as_deref(), cx.background_executor().clone())
3281 .await;
3282
3283 if menu.matches.is_empty() {
3284 None
3285 } else {
3286 this.update(&mut cx, |editor, cx| {
3287 let completions = menu.completions.clone();
3288 let matches = menu.matches.clone();
3289
3290 let delay_ms = EditorSettings::get_global(cx)
3291 .completion_documentation_secondary_query_debounce;
3292 let delay = Duration::from_millis(delay_ms);
3293
3294 editor
3295 .completion_documentation_pre_resolve_debounce
3296 .fire_new(delay, cx, |editor, cx| {
3297 CompletionsMenu::pre_resolve_completion_documentation(
3298 completions,
3299 matches,
3300 editor,
3301 cx,
3302 )
3303 });
3304 })
3305 .ok();
3306 Some(menu)
3307 }
3308 } else {
3309 None
3310 };
3311
3312 this.update(&mut cx, |this, cx| {
3313 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3314
3315 let mut context_menu = this.context_menu.write();
3316 match context_menu.as_ref() {
3317 None => {}
3318
3319 Some(ContextMenu::Completions(prev_menu)) => {
3320 if prev_menu.id > id {
3321 return;
3322 }
3323 }
3324
3325 _ => return,
3326 }
3327
3328 if this.focus_handle.is_focused(cx) && menu.is_some() {
3329 let menu = menu.unwrap();
3330 *context_menu = Some(ContextMenu::Completions(menu));
3331 drop(context_menu);
3332 this.discard_copilot_suggestion(cx);
3333 cx.notify();
3334 } else if this.completion_tasks.len() <= 1 {
3335 // If there are no more completion tasks and the last menu was
3336 // empty, we should hide it. If it was already hidden, we should
3337 // also show the copilot suggestion when available.
3338 drop(context_menu);
3339 if this.hide_context_menu(cx).is_none() {
3340 this.update_visible_copilot_suggestion(cx);
3341 }
3342 }
3343 })?;
3344
3345 Ok::<_, anyhow::Error>(())
3346 }
3347 .log_err()
3348 });
3349
3350 self.completion_tasks.push((id, task));
3351 }
3352
3353 pub fn confirm_completion(
3354 &mut self,
3355 action: &ConfirmCompletion,
3356 cx: &mut ViewContext<Self>,
3357 ) -> Option<Task<Result<()>>> {
3358 use language::ToOffset as _;
3359
3360 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3361 menu
3362 } else {
3363 return None;
3364 };
3365
3366 let mat = completions_menu
3367 .matches
3368 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3369 let buffer_handle = completions_menu.buffer;
3370 let completions = completions_menu.completions.read();
3371 let completion = completions.get(mat.candidate_id)?;
3372 cx.stop_propagation();
3373
3374 let snippet;
3375 let text;
3376 if completion.is_snippet() {
3377 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3378 text = snippet.as_ref().unwrap().text.clone();
3379 } else {
3380 snippet = None;
3381 text = completion.new_text.clone();
3382 };
3383 let selections = self.selections.all::<usize>(cx);
3384 let buffer = buffer_handle.read(cx);
3385 let old_range = completion.old_range.to_offset(buffer);
3386 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3387
3388 let newest_selection = self.selections.newest_anchor();
3389 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3390 return None;
3391 }
3392
3393 let lookbehind = newest_selection
3394 .start
3395 .text_anchor
3396 .to_offset(buffer)
3397 .saturating_sub(old_range.start);
3398 let lookahead = old_range
3399 .end
3400 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3401 let mut common_prefix_len = old_text
3402 .bytes()
3403 .zip(text.bytes())
3404 .take_while(|(a, b)| a == b)
3405 .count();
3406
3407 let snapshot = self.buffer.read(cx).snapshot(cx);
3408 let mut range_to_replace: Option<Range<isize>> = None;
3409 let mut ranges = Vec::new();
3410 for selection in &selections {
3411 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3412 let start = selection.start.saturating_sub(lookbehind);
3413 let end = selection.end + lookahead;
3414 if selection.id == newest_selection.id {
3415 range_to_replace = Some(
3416 ((start + common_prefix_len) as isize - selection.start as isize)
3417 ..(end as isize - selection.start as isize),
3418 );
3419 }
3420 ranges.push(start + common_prefix_len..end);
3421 } else {
3422 common_prefix_len = 0;
3423 ranges.clear();
3424 ranges.extend(selections.iter().map(|s| {
3425 if s.id == newest_selection.id {
3426 range_to_replace = Some(
3427 old_range.start.to_offset_utf16(&snapshot).0 as isize
3428 - selection.start as isize
3429 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3430 - selection.start as isize,
3431 );
3432 old_range.clone()
3433 } else {
3434 s.start..s.end
3435 }
3436 }));
3437 break;
3438 }
3439 }
3440 let text = &text[common_prefix_len..];
3441
3442 cx.emit(EditorEvent::InputHandled {
3443 utf16_range_to_replace: range_to_replace,
3444 text: text.into(),
3445 });
3446
3447 self.transact(cx, |this, cx| {
3448 if let Some(mut snippet) = snippet {
3449 snippet.text = text.to_string();
3450 for tabstop in snippet.tabstops.iter_mut().flatten() {
3451 tabstop.start -= common_prefix_len as isize;
3452 tabstop.end -= common_prefix_len as isize;
3453 }
3454
3455 this.insert_snippet(&ranges, snippet, cx).log_err();
3456 } else {
3457 this.buffer.update(cx, |buffer, cx| {
3458 buffer.edit(
3459 ranges.iter().map(|range| (range.clone(), text)),
3460 this.autoindent_mode.clone(),
3461 cx,
3462 );
3463 });
3464 }
3465
3466 this.refresh_copilot_suggestions(true, cx);
3467 });
3468
3469 let provider = self.completion_provider.as_ref()?;
3470 let apply_edits = provider.apply_additional_edits_for_completion(
3471 buffer_handle,
3472 completion.clone(),
3473 true,
3474 cx,
3475 );
3476 Some(cx.foreground_executor().spawn(async move {
3477 apply_edits.await?;
3478 Ok(())
3479 }))
3480 }
3481
3482 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3483 let mut context_menu = self.context_menu.write();
3484 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3485 *context_menu = None;
3486 cx.notify();
3487 return;
3488 }
3489 drop(context_menu);
3490
3491 let deployed_from_indicator = action.deployed_from_indicator;
3492 let mut task = self.code_actions_task.take();
3493 cx.spawn(|this, mut cx| async move {
3494 while let Some(prev_task) = task {
3495 prev_task.await;
3496 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3497 }
3498
3499 this.update(&mut cx, |this, cx| {
3500 if this.focus_handle.is_focused(cx) {
3501 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3502 this.completion_tasks.clear();
3503 this.discard_copilot_suggestion(cx);
3504 *this.context_menu.write() =
3505 Some(ContextMenu::CodeActions(CodeActionsMenu {
3506 buffer,
3507 actions,
3508 selected_item: Default::default(),
3509 scroll_handle: UniformListScrollHandle::default(),
3510 deployed_from_indicator,
3511 }));
3512 cx.notify();
3513 }
3514 }
3515 })?;
3516
3517 Ok::<_, anyhow::Error>(())
3518 })
3519 .detach_and_log_err(cx);
3520 }
3521
3522 pub fn confirm_code_action(
3523 &mut self,
3524 action: &ConfirmCodeAction,
3525 cx: &mut ViewContext<Self>,
3526 ) -> Option<Task<Result<()>>> {
3527 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3528 menu
3529 } else {
3530 return None;
3531 };
3532 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3533 let action = actions_menu.actions.get(action_ix)?.clone();
3534 let title = action.lsp_action.title.clone();
3535 let buffer = actions_menu.buffer;
3536 let workspace = self.workspace()?;
3537
3538 let apply_code_actions = workspace
3539 .read(cx)
3540 .project()
3541 .clone()
3542 .update(cx, |project, cx| {
3543 project.apply_code_action(buffer, action, true, cx)
3544 });
3545 let workspace = workspace.downgrade();
3546 Some(cx.spawn(|editor, cx| async move {
3547 let project_transaction = apply_code_actions.await?;
3548 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3549 }))
3550 }
3551
3552 async fn open_project_transaction(
3553 this: &WeakView<Editor>,
3554 workspace: WeakView<Workspace>,
3555 transaction: ProjectTransaction,
3556 title: String,
3557 mut cx: AsyncWindowContext,
3558 ) -> Result<()> {
3559 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3560
3561 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3562 cx.update(|cx| {
3563 entries.sort_unstable_by_key(|(buffer, _)| {
3564 buffer.read(cx).file().map(|f| f.path().clone())
3565 });
3566 })?;
3567
3568 // If the project transaction's edits are all contained within this editor, then
3569 // avoid opening a new editor to display them.
3570
3571 if let Some((buffer, transaction)) = entries.first() {
3572 if entries.len() == 1 {
3573 let excerpt = this.update(&mut cx, |editor, cx| {
3574 editor
3575 .buffer()
3576 .read(cx)
3577 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3578 })?;
3579 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3580 if excerpted_buffer == *buffer {
3581 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3582 let excerpt_range = excerpt_range.to_offset(buffer);
3583 buffer
3584 .edited_ranges_for_transaction::<usize>(transaction)
3585 .all(|range| {
3586 excerpt_range.start <= range.start
3587 && excerpt_range.end >= range.end
3588 })
3589 })?;
3590
3591 if all_edits_within_excerpt {
3592 return Ok(());
3593 }
3594 }
3595 }
3596 }
3597 } else {
3598 return Ok(());
3599 }
3600
3601 let mut ranges_to_highlight = Vec::new();
3602 let excerpt_buffer = cx.new_model(|cx| {
3603 let mut multibuffer =
3604 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3605 for (buffer_handle, transaction) in &entries {
3606 let buffer = buffer_handle.read(cx);
3607 ranges_to_highlight.extend(
3608 multibuffer.push_excerpts_with_context_lines(
3609 buffer_handle.clone(),
3610 buffer
3611 .edited_ranges_for_transaction::<usize>(transaction)
3612 .collect(),
3613 1,
3614 cx,
3615 ),
3616 );
3617 }
3618 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3619 multibuffer
3620 })?;
3621
3622 workspace.update(&mut cx, |workspace, cx| {
3623 let project = workspace.project().clone();
3624 let editor =
3625 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3626 workspace.add_item(Box::new(editor.clone()), cx);
3627 editor.update(cx, |editor, cx| {
3628 editor.highlight_background::<Self>(
3629 ranges_to_highlight,
3630 |theme| theme.editor_highlighted_line_background,
3631 cx,
3632 );
3633 });
3634 })?;
3635
3636 Ok(())
3637 }
3638
3639 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3640 let project = self.project.clone()?;
3641 let buffer = self.buffer.read(cx);
3642 let newest_selection = self.selections.newest_anchor().clone();
3643 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3644 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3645 if start_buffer != end_buffer {
3646 return None;
3647 }
3648
3649 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3650 cx.background_executor()
3651 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3652 .await;
3653
3654 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3655 project.code_actions(&start_buffer, start..end, cx)
3656 }) {
3657 code_actions.await.log_err()
3658 } else {
3659 None
3660 };
3661
3662 this.update(&mut cx, |this, cx| {
3663 this.available_code_actions = actions.and_then(|actions| {
3664 if actions.is_empty() {
3665 None
3666 } else {
3667 Some((start_buffer, actions.into()))
3668 }
3669 });
3670 cx.notify();
3671 })
3672 .log_err();
3673 }));
3674 None
3675 }
3676
3677 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3678 if self.pending_rename.is_some() {
3679 return None;
3680 }
3681
3682 let project = self.project.clone()?;
3683 let buffer = self.buffer.read(cx);
3684 let newest_selection = self.selections.newest_anchor().clone();
3685 let cursor_position = newest_selection.head();
3686 let (cursor_buffer, cursor_buffer_position) =
3687 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3688 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3689 if cursor_buffer != tail_buffer {
3690 return None;
3691 }
3692
3693 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3694 cx.background_executor()
3695 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3696 .await;
3697
3698 let highlights = if let Some(highlights) = project
3699 .update(&mut cx, |project, cx| {
3700 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3701 })
3702 .log_err()
3703 {
3704 highlights.await.log_err()
3705 } else {
3706 None
3707 };
3708
3709 if let Some(highlights) = highlights {
3710 this.update(&mut cx, |this, cx| {
3711 if this.pending_rename.is_some() {
3712 return;
3713 }
3714
3715 let buffer_id = cursor_position.buffer_id;
3716 let buffer = this.buffer.read(cx);
3717 if !buffer
3718 .text_anchor_for_position(cursor_position, cx)
3719 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3720 {
3721 return;
3722 }
3723
3724 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3725 let mut write_ranges = Vec::new();
3726 let mut read_ranges = Vec::new();
3727 for highlight in highlights {
3728 for (excerpt_id, excerpt_range) in
3729 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3730 {
3731 let start = highlight
3732 .range
3733 .start
3734 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3735 let end = highlight
3736 .range
3737 .end
3738 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3739 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3740 continue;
3741 }
3742
3743 let range = Anchor {
3744 buffer_id,
3745 excerpt_id: excerpt_id.clone(),
3746 text_anchor: start,
3747 }..Anchor {
3748 buffer_id,
3749 excerpt_id,
3750 text_anchor: end,
3751 };
3752 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3753 write_ranges.push(range);
3754 } else {
3755 read_ranges.push(range);
3756 }
3757 }
3758 }
3759
3760 this.highlight_background::<DocumentHighlightRead>(
3761 read_ranges,
3762 |theme| theme.editor_document_highlight_read_background,
3763 cx,
3764 );
3765 this.highlight_background::<DocumentHighlightWrite>(
3766 write_ranges,
3767 |theme| theme.editor_document_highlight_write_background,
3768 cx,
3769 );
3770 cx.notify();
3771 })
3772 .log_err();
3773 }
3774 }));
3775 None
3776 }
3777
3778 fn refresh_copilot_suggestions(
3779 &mut self,
3780 debounce: bool,
3781 cx: &mut ViewContext<Self>,
3782 ) -> Option<()> {
3783 let copilot = Copilot::global(cx)?;
3784 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3785 self.clear_copilot_suggestions(cx);
3786 return None;
3787 }
3788 self.update_visible_copilot_suggestion(cx);
3789
3790 let snapshot = self.buffer.read(cx).snapshot(cx);
3791 let cursor = self.selections.newest_anchor().head();
3792 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3793 self.clear_copilot_suggestions(cx);
3794 return None;
3795 }
3796
3797 let (buffer, buffer_position) =
3798 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3799 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3800 if debounce {
3801 cx.background_executor()
3802 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3803 .await;
3804 }
3805
3806 let completions = copilot
3807 .update(&mut cx, |copilot, cx| {
3808 copilot.completions(&buffer, buffer_position, cx)
3809 })
3810 .log_err()
3811 .unwrap_or(Task::ready(Ok(Vec::new())))
3812 .await
3813 .log_err()
3814 .into_iter()
3815 .flatten()
3816 .collect_vec();
3817
3818 this.update(&mut cx, |this, cx| {
3819 if !completions.is_empty() {
3820 this.copilot_state.cycled = false;
3821 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3822 this.copilot_state.completions.clear();
3823 this.copilot_state.active_completion_index = 0;
3824 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3825 for completion in completions {
3826 this.copilot_state.push_completion(completion);
3827 }
3828 this.update_visible_copilot_suggestion(cx);
3829 }
3830 })
3831 .log_err()?;
3832 Some(())
3833 });
3834
3835 Some(())
3836 }
3837
3838 fn cycle_copilot_suggestions(
3839 &mut self,
3840 direction: Direction,
3841 cx: &mut ViewContext<Self>,
3842 ) -> Option<()> {
3843 let copilot = Copilot::global(cx)?;
3844 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3845 return None;
3846 }
3847
3848 if self.copilot_state.cycled {
3849 self.copilot_state.cycle_completions(direction);
3850 self.update_visible_copilot_suggestion(cx);
3851 } else {
3852 let cursor = self.selections.newest_anchor().head();
3853 let (buffer, buffer_position) =
3854 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3855 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3856 let completions = copilot
3857 .update(&mut cx, |copilot, cx| {
3858 copilot.completions_cycling(&buffer, buffer_position, cx)
3859 })
3860 .log_err()?
3861 .await;
3862
3863 this.update(&mut cx, |this, cx| {
3864 this.copilot_state.cycled = true;
3865 for completion in completions.log_err().into_iter().flatten() {
3866 this.copilot_state.push_completion(completion);
3867 }
3868 this.copilot_state.cycle_completions(direction);
3869 this.update_visible_copilot_suggestion(cx);
3870 })
3871 .log_err()?;
3872
3873 Some(())
3874 });
3875 }
3876
3877 Some(())
3878 }
3879
3880 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3881 if !self.has_active_copilot_suggestion(cx) {
3882 self.refresh_copilot_suggestions(false, cx);
3883 return;
3884 }
3885
3886 self.update_visible_copilot_suggestion(cx);
3887 }
3888
3889 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3890 self.show_cursor_names(cx);
3891 }
3892
3893 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3894 self.show_cursor_names = true;
3895 cx.notify();
3896 cx.spawn(|this, mut cx| async move {
3897 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3898 this.update(&mut cx, |this, cx| {
3899 this.show_cursor_names = false;
3900 cx.notify()
3901 })
3902 .ok()
3903 })
3904 .detach();
3905 }
3906
3907 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3908 if self.has_active_copilot_suggestion(cx) {
3909 self.cycle_copilot_suggestions(Direction::Next, cx);
3910 } else {
3911 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3912 if is_copilot_disabled {
3913 cx.propagate();
3914 }
3915 }
3916 }
3917
3918 fn previous_copilot_suggestion(
3919 &mut self,
3920 _: &copilot::PreviousSuggestion,
3921 cx: &mut ViewContext<Self>,
3922 ) {
3923 if self.has_active_copilot_suggestion(cx) {
3924 self.cycle_copilot_suggestions(Direction::Prev, cx);
3925 } else {
3926 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3927 if is_copilot_disabled {
3928 cx.propagate();
3929 }
3930 }
3931 }
3932
3933 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3934 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3935 if let Some((copilot, completion)) =
3936 Copilot::global(cx).zip(self.copilot_state.active_completion())
3937 {
3938 copilot
3939 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3940 .detach_and_log_err(cx);
3941
3942 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3943 }
3944 cx.emit(EditorEvent::InputHandled {
3945 utf16_range_to_replace: None,
3946 text: suggestion.text.to_string().into(),
3947 });
3948 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3949 cx.notify();
3950 true
3951 } else {
3952 false
3953 }
3954 }
3955
3956 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3957 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3958 if let Some(copilot) = Copilot::global(cx) {
3959 copilot
3960 .update(cx, |copilot, cx| {
3961 copilot.discard_completions(&self.copilot_state.completions, cx)
3962 })
3963 .detach_and_log_err(cx);
3964
3965 self.report_copilot_event(None, false, cx)
3966 }
3967
3968 self.display_map.update(cx, |map, cx| {
3969 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3970 });
3971 cx.notify();
3972 true
3973 } else {
3974 false
3975 }
3976 }
3977
3978 fn is_copilot_enabled_at(
3979 &self,
3980 location: Anchor,
3981 snapshot: &MultiBufferSnapshot,
3982 cx: &mut ViewContext<Self>,
3983 ) -> bool {
3984 let file = snapshot.file_at(location);
3985 let language = snapshot.language_at(location);
3986 let settings = all_language_settings(file, cx);
3987 self.show_copilot_suggestions
3988 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3989 }
3990
3991 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3992 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3993 let buffer = self.buffer.read(cx).read(cx);
3994 suggestion.position.is_valid(&buffer)
3995 } else {
3996 false
3997 }
3998 }
3999
4000 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4001 let suggestion = self.copilot_state.suggestion.take()?;
4002 self.display_map.update(cx, |map, cx| {
4003 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
4004 });
4005 let buffer = self.buffer.read(cx).read(cx);
4006
4007 if suggestion.position.is_valid(&buffer) {
4008 Some(suggestion)
4009 } else {
4010 None
4011 }
4012 }
4013
4014 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
4015 let snapshot = self.buffer.read(cx).snapshot(cx);
4016 let selection = self.selections.newest_anchor();
4017 let cursor = selection.head();
4018
4019 if self.context_menu.read().is_some()
4020 || !self.completion_tasks.is_empty()
4021 || selection.start != selection.end
4022 {
4023 self.discard_copilot_suggestion(cx);
4024 } else if let Some(text) = self
4025 .copilot_state
4026 .text_for_active_completion(cursor, &snapshot)
4027 {
4028 let text = Rope::from(text);
4029 let mut to_remove = Vec::new();
4030 if let Some(suggestion) = self.copilot_state.suggestion.take() {
4031 to_remove.push(suggestion.id);
4032 }
4033
4034 let suggestion_inlay =
4035 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4036 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
4037 self.display_map.update(cx, move |map, cx| {
4038 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
4039 });
4040 cx.notify();
4041 } else {
4042 self.discard_copilot_suggestion(cx);
4043 }
4044 }
4045
4046 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
4047 self.copilot_state = Default::default();
4048 self.discard_copilot_suggestion(cx);
4049 }
4050
4051 pub fn render_code_actions_indicator(
4052 &self,
4053 _style: &EditorStyle,
4054 is_active: bool,
4055 cx: &mut ViewContext<Self>,
4056 ) -> Option<IconButton> {
4057 if self.available_code_actions.is_some() {
4058 Some(
4059 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4060 .icon_size(IconSize::Small)
4061 .icon_color(Color::Muted)
4062 .selected(is_active)
4063 .on_click(cx.listener(|editor, _e, cx| {
4064 editor.toggle_code_actions(
4065 &ToggleCodeActions {
4066 deployed_from_indicator: true,
4067 },
4068 cx,
4069 );
4070 })),
4071 )
4072 } else {
4073 None
4074 }
4075 }
4076
4077 pub fn render_fold_indicators(
4078 &self,
4079 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4080 _style: &EditorStyle,
4081 gutter_hovered: bool,
4082 _line_height: Pixels,
4083 _gutter_margin: Pixels,
4084 editor_view: View<Editor>,
4085 ) -> Vec<Option<IconButton>> {
4086 fold_data
4087 .iter()
4088 .enumerate()
4089 .map(|(ix, fold_data)| {
4090 fold_data
4091 .map(|(fold_status, buffer_row, active)| {
4092 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4093 IconButton::new(ix as usize, ui::IconName::ChevronDown)
4094 .on_click({
4095 let view = editor_view.clone();
4096 move |_e, cx| {
4097 view.update(cx, |editor, cx| match fold_status {
4098 FoldStatus::Folded => {
4099 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
4100 }
4101 FoldStatus::Foldable => {
4102 editor.fold_at(&FoldAt { buffer_row }, cx);
4103 }
4104 })
4105 }
4106 })
4107 .icon_color(ui::Color::Muted)
4108 .icon_size(ui::IconSize::Small)
4109 .selected(fold_status == FoldStatus::Folded)
4110 .selected_icon(ui::IconName::ChevronRight)
4111 .size(ui::ButtonSize::None)
4112 })
4113 })
4114 .flatten()
4115 })
4116 .collect()
4117 }
4118
4119 pub fn context_menu_visible(&self) -> bool {
4120 self.context_menu
4121 .read()
4122 .as_ref()
4123 .map_or(false, |menu| menu.visible())
4124 }
4125
4126 pub fn render_context_menu(
4127 &self,
4128 cursor_position: DisplayPoint,
4129 style: &EditorStyle,
4130 max_height: Pixels,
4131 cx: &mut ViewContext<Editor>,
4132 ) -> Option<(DisplayPoint, AnyElement)> {
4133 self.context_menu.read().as_ref().map(|menu| {
4134 menu.render(
4135 cursor_position,
4136 style,
4137 max_height,
4138 self.workspace.as_ref().map(|(w, _)| w.clone()),
4139 cx,
4140 )
4141 })
4142 }
4143
4144 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4145 cx.notify();
4146 self.completion_tasks.clear();
4147 let context_menu = self.context_menu.write().take();
4148 if context_menu.is_some() {
4149 self.update_visible_copilot_suggestion(cx);
4150 }
4151 context_menu
4152 }
4153
4154 pub fn insert_snippet(
4155 &mut self,
4156 insertion_ranges: &[Range<usize>],
4157 snippet: Snippet,
4158 cx: &mut ViewContext<Self>,
4159 ) -> Result<()> {
4160 let tabstops = self.buffer.update(cx, |buffer, cx| {
4161 let snippet_text: Arc<str> = snippet.text.clone().into();
4162 buffer.edit(
4163 insertion_ranges
4164 .iter()
4165 .cloned()
4166 .map(|range| (range, snippet_text.clone())),
4167 Some(AutoindentMode::EachLine),
4168 cx,
4169 );
4170
4171 let snapshot = &*buffer.read(cx);
4172 let snippet = &snippet;
4173 snippet
4174 .tabstops
4175 .iter()
4176 .map(|tabstop| {
4177 let mut tabstop_ranges = tabstop
4178 .iter()
4179 .flat_map(|tabstop_range| {
4180 let mut delta = 0_isize;
4181 insertion_ranges.iter().map(move |insertion_range| {
4182 let insertion_start = insertion_range.start as isize + delta;
4183 delta +=
4184 snippet.text.len() as isize - insertion_range.len() as isize;
4185
4186 let start = snapshot.anchor_before(
4187 (insertion_start + tabstop_range.start) as usize,
4188 );
4189 let end = snapshot
4190 .anchor_after((insertion_start + tabstop_range.end) as usize);
4191 start..end
4192 })
4193 })
4194 .collect::<Vec<_>>();
4195 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4196 tabstop_ranges
4197 })
4198 .collect::<Vec<_>>()
4199 });
4200
4201 if let Some(tabstop) = tabstops.first() {
4202 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4203 s.select_ranges(tabstop.iter().cloned());
4204 });
4205 self.snippet_stack.push(SnippetState {
4206 active_index: 0,
4207 ranges: tabstops,
4208 });
4209
4210 // Check whether the just-entered snippet ends with an auto-closable bracket.
4211 if self.autoclose_regions.is_empty() {
4212 let snapshot = self.buffer.read(cx).snapshot(cx);
4213 for selection in &mut self.selections.all::<Point>(cx) {
4214 let selection_head = selection.head();
4215 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4216 continue;
4217 };
4218
4219 let mut bracket_pair = None;
4220 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4221 let prev_chars = snapshot
4222 .reversed_chars_at(selection_head)
4223 .collect::<String>();
4224 for (pair, enabled) in scope.brackets() {
4225 if enabled
4226 && pair.close
4227 && prev_chars.starts_with(pair.start.as_str())
4228 && next_chars.starts_with(pair.end.as_str())
4229 {
4230 bracket_pair = Some(pair.clone());
4231 break;
4232 }
4233 }
4234 if let Some(pair) = bracket_pair {
4235 let start = snapshot.anchor_after(selection_head);
4236 let end = snapshot.anchor_after(selection_head);
4237 self.autoclose_regions.push(AutocloseRegion {
4238 selection_id: selection.id,
4239 range: start..end,
4240 pair,
4241 });
4242 }
4243 }
4244 }
4245 }
4246 Ok(())
4247 }
4248
4249 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4250 self.move_to_snippet_tabstop(Bias::Right, cx)
4251 }
4252
4253 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4254 self.move_to_snippet_tabstop(Bias::Left, cx)
4255 }
4256
4257 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4258 if let Some(mut snippet) = self.snippet_stack.pop() {
4259 match bias {
4260 Bias::Left => {
4261 if snippet.active_index > 0 {
4262 snippet.active_index -= 1;
4263 } else {
4264 self.snippet_stack.push(snippet);
4265 return false;
4266 }
4267 }
4268 Bias::Right => {
4269 if snippet.active_index + 1 < snippet.ranges.len() {
4270 snippet.active_index += 1;
4271 } else {
4272 self.snippet_stack.push(snippet);
4273 return false;
4274 }
4275 }
4276 }
4277 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4278 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4279 s.select_anchor_ranges(current_ranges.iter().cloned())
4280 });
4281 // If snippet state is not at the last tabstop, push it back on the stack
4282 if snippet.active_index + 1 < snippet.ranges.len() {
4283 self.snippet_stack.push(snippet);
4284 }
4285 return true;
4286 }
4287 }
4288
4289 false
4290 }
4291
4292 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4293 self.transact(cx, |this, cx| {
4294 this.select_all(&SelectAll, cx);
4295 this.insert("", cx);
4296 });
4297 }
4298
4299 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4300 self.transact(cx, |this, cx| {
4301 this.select_autoclose_pair(cx);
4302 let mut selections = this.selections.all::<Point>(cx);
4303 if !this.selections.line_mode {
4304 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4305 for selection in &mut selections {
4306 if selection.is_empty() {
4307 let old_head = selection.head();
4308 let mut new_head =
4309 movement::left(&display_map, old_head.to_display_point(&display_map))
4310 .to_point(&display_map);
4311 if let Some((buffer, line_buffer_range)) = display_map
4312 .buffer_snapshot
4313 .buffer_line_for_row(old_head.row)
4314 {
4315 let indent_size =
4316 buffer.indent_size_for_line(line_buffer_range.start.row);
4317 let indent_len = match indent_size.kind {
4318 IndentKind::Space => {
4319 buffer.settings_at(line_buffer_range.start, cx).tab_size
4320 }
4321 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4322 };
4323 if old_head.column <= indent_size.len && old_head.column > 0 {
4324 let indent_len = indent_len.get();
4325 new_head = cmp::min(
4326 new_head,
4327 Point::new(
4328 old_head.row,
4329 ((old_head.column - 1) / indent_len) * indent_len,
4330 ),
4331 );
4332 }
4333 }
4334
4335 selection.set_head(new_head, SelectionGoal::None);
4336 }
4337 }
4338 }
4339
4340 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4341 this.insert("", cx);
4342 this.refresh_copilot_suggestions(true, cx);
4343 });
4344 }
4345
4346 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4347 self.transact(cx, |this, cx| {
4348 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4349 let line_mode = s.line_mode;
4350 s.move_with(|map, selection| {
4351 if selection.is_empty() && !line_mode {
4352 let cursor = movement::right(map, selection.head());
4353 selection.end = cursor;
4354 selection.reversed = true;
4355 selection.goal = SelectionGoal::None;
4356 }
4357 })
4358 });
4359 this.insert("", cx);
4360 this.refresh_copilot_suggestions(true, cx);
4361 });
4362 }
4363
4364 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4365 if self.move_to_prev_snippet_tabstop(cx) {
4366 return;
4367 }
4368
4369 self.outdent(&Outdent, cx);
4370 }
4371
4372 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4373 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4374 return;
4375 }
4376
4377 let mut selections = self.selections.all_adjusted(cx);
4378 let buffer = self.buffer.read(cx);
4379 let snapshot = buffer.snapshot(cx);
4380 let rows_iter = selections.iter().map(|s| s.head().row);
4381 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4382
4383 let mut edits = Vec::new();
4384 let mut prev_edited_row = 0;
4385 let mut row_delta = 0;
4386 for selection in &mut selections {
4387 if selection.start.row != prev_edited_row {
4388 row_delta = 0;
4389 }
4390 prev_edited_row = selection.end.row;
4391
4392 // If the selection is non-empty, then increase the indentation of the selected lines.
4393 if !selection.is_empty() {
4394 row_delta =
4395 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4396 continue;
4397 }
4398
4399 // If the selection is empty and the cursor is in the leading whitespace before the
4400 // suggested indentation, then auto-indent the line.
4401 let cursor = selection.head();
4402 let current_indent = snapshot.indent_size_for_line(cursor.row);
4403 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4404 if cursor.column < suggested_indent.len
4405 && cursor.column <= current_indent.len
4406 && current_indent.len <= suggested_indent.len
4407 {
4408 selection.start = Point::new(cursor.row, suggested_indent.len);
4409 selection.end = selection.start;
4410 if row_delta == 0 {
4411 edits.extend(Buffer::edit_for_indent_size_adjustment(
4412 cursor.row,
4413 current_indent,
4414 suggested_indent,
4415 ));
4416 row_delta = suggested_indent.len - current_indent.len;
4417 }
4418 continue;
4419 }
4420 }
4421
4422 // Accept copilot suggestion if there is only one selection and the cursor is not
4423 // in the leading whitespace.
4424 if self.selections.count() == 1
4425 && cursor.column >= current_indent.len
4426 && self.has_active_copilot_suggestion(cx)
4427 {
4428 self.accept_copilot_suggestion(cx);
4429 return;
4430 }
4431
4432 // Otherwise, insert a hard or soft tab.
4433 let settings = buffer.settings_at(cursor, cx);
4434 let tab_size = if settings.hard_tabs {
4435 IndentSize::tab()
4436 } else {
4437 let tab_size = settings.tab_size.get();
4438 let char_column = snapshot
4439 .text_for_range(Point::new(cursor.row, 0)..cursor)
4440 .flat_map(str::chars)
4441 .count()
4442 + row_delta as usize;
4443 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4444 IndentSize::spaces(chars_to_next_tab_stop)
4445 };
4446 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4447 selection.end = selection.start;
4448 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4449 row_delta += tab_size.len;
4450 }
4451
4452 self.transact(cx, |this, cx| {
4453 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4454 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4455 this.refresh_copilot_suggestions(true, cx);
4456 });
4457 }
4458
4459 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4460 let mut selections = self.selections.all::<Point>(cx);
4461 let mut prev_edited_row = 0;
4462 let mut row_delta = 0;
4463 let mut edits = Vec::new();
4464 let buffer = self.buffer.read(cx);
4465 let snapshot = buffer.snapshot(cx);
4466 for selection in &mut selections {
4467 if selection.start.row != prev_edited_row {
4468 row_delta = 0;
4469 }
4470 prev_edited_row = selection.end.row;
4471
4472 row_delta =
4473 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4474 }
4475
4476 self.transact(cx, |this, cx| {
4477 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4478 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4479 });
4480 }
4481
4482 fn indent_selection(
4483 buffer: &MultiBuffer,
4484 snapshot: &MultiBufferSnapshot,
4485 selection: &mut Selection<Point>,
4486 edits: &mut Vec<(Range<Point>, String)>,
4487 delta_for_start_row: u32,
4488 cx: &AppContext,
4489 ) -> u32 {
4490 let settings = buffer.settings_at(selection.start, cx);
4491 let tab_size = settings.tab_size.get();
4492 let indent_kind = if settings.hard_tabs {
4493 IndentKind::Tab
4494 } else {
4495 IndentKind::Space
4496 };
4497 let mut start_row = selection.start.row;
4498 let mut end_row = selection.end.row + 1;
4499
4500 // If a selection ends at the beginning of a line, don't indent
4501 // that last line.
4502 if selection.end.column == 0 {
4503 end_row -= 1;
4504 }
4505
4506 // Avoid re-indenting a row that has already been indented by a
4507 // previous selection, but still update this selection's column
4508 // to reflect that indentation.
4509 if delta_for_start_row > 0 {
4510 start_row += 1;
4511 selection.start.column += delta_for_start_row;
4512 if selection.end.row == selection.start.row {
4513 selection.end.column += delta_for_start_row;
4514 }
4515 }
4516
4517 let mut delta_for_end_row = 0;
4518 for row in start_row..end_row {
4519 let current_indent = snapshot.indent_size_for_line(row);
4520 let indent_delta = match (current_indent.kind, indent_kind) {
4521 (IndentKind::Space, IndentKind::Space) => {
4522 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4523 IndentSize::spaces(columns_to_next_tab_stop)
4524 }
4525 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4526 (_, IndentKind::Tab) => IndentSize::tab(),
4527 };
4528
4529 let row_start = Point::new(row, 0);
4530 edits.push((
4531 row_start..row_start,
4532 indent_delta.chars().collect::<String>(),
4533 ));
4534
4535 // Update this selection's endpoints to reflect the indentation.
4536 if row == selection.start.row {
4537 selection.start.column += indent_delta.len;
4538 }
4539 if row == selection.end.row {
4540 selection.end.column += indent_delta.len;
4541 delta_for_end_row = indent_delta.len;
4542 }
4543 }
4544
4545 if selection.start.row == selection.end.row {
4546 delta_for_start_row + delta_for_end_row
4547 } else {
4548 delta_for_end_row
4549 }
4550 }
4551
4552 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4553 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4554 let selections = self.selections.all::<Point>(cx);
4555 let mut deletion_ranges = Vec::new();
4556 let mut last_outdent = None;
4557 {
4558 let buffer = self.buffer.read(cx);
4559 let snapshot = buffer.snapshot(cx);
4560 for selection in &selections {
4561 let settings = buffer.settings_at(selection.start, cx);
4562 let tab_size = settings.tab_size.get();
4563 let mut rows = selection.spanned_rows(false, &display_map);
4564
4565 // Avoid re-outdenting a row that has already been outdented by a
4566 // previous selection.
4567 if let Some(last_row) = last_outdent {
4568 if last_row == rows.start {
4569 rows.start += 1;
4570 }
4571 }
4572
4573 for row in rows {
4574 let indent_size = snapshot.indent_size_for_line(row);
4575 if indent_size.len > 0 {
4576 let deletion_len = match indent_size.kind {
4577 IndentKind::Space => {
4578 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4579 if columns_to_prev_tab_stop == 0 {
4580 tab_size
4581 } else {
4582 columns_to_prev_tab_stop
4583 }
4584 }
4585 IndentKind::Tab => 1,
4586 };
4587 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4588 last_outdent = Some(row);
4589 }
4590 }
4591 }
4592 }
4593
4594 self.transact(cx, |this, cx| {
4595 this.buffer.update(cx, |buffer, cx| {
4596 let empty_str: Arc<str> = "".into();
4597 buffer.edit(
4598 deletion_ranges
4599 .into_iter()
4600 .map(|range| (range, empty_str.clone())),
4601 None,
4602 cx,
4603 );
4604 });
4605 let selections = this.selections.all::<usize>(cx);
4606 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4607 });
4608 }
4609
4610 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4611 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4612 let selections = self.selections.all::<Point>(cx);
4613
4614 let mut new_cursors = Vec::new();
4615 let mut edit_ranges = Vec::new();
4616 let mut selections = selections.iter().peekable();
4617 while let Some(selection) = selections.next() {
4618 let mut rows = selection.spanned_rows(false, &display_map);
4619 let goal_display_column = selection.head().to_display_point(&display_map).column();
4620
4621 // Accumulate contiguous regions of rows that we want to delete.
4622 while let Some(next_selection) = selections.peek() {
4623 let next_rows = next_selection.spanned_rows(false, &display_map);
4624 if next_rows.start <= rows.end {
4625 rows.end = next_rows.end;
4626 selections.next().unwrap();
4627 } else {
4628 break;
4629 }
4630 }
4631
4632 let buffer = &display_map.buffer_snapshot;
4633 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4634 let edit_end;
4635 let cursor_buffer_row;
4636 if buffer.max_point().row >= rows.end {
4637 // If there's a line after the range, delete the \n from the end of the row range
4638 // and position the cursor on the next line.
4639 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4640 cursor_buffer_row = rows.end;
4641 } else {
4642 // If there isn't a line after the range, delete the \n from the line before the
4643 // start of the row range and position the cursor there.
4644 edit_start = edit_start.saturating_sub(1);
4645 edit_end = buffer.len();
4646 cursor_buffer_row = rows.start.saturating_sub(1);
4647 }
4648
4649 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4650 *cursor.column_mut() =
4651 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4652
4653 new_cursors.push((
4654 selection.id,
4655 buffer.anchor_after(cursor.to_point(&display_map)),
4656 ));
4657 edit_ranges.push(edit_start..edit_end);
4658 }
4659
4660 self.transact(cx, |this, cx| {
4661 let buffer = this.buffer.update(cx, |buffer, cx| {
4662 let empty_str: Arc<str> = "".into();
4663 buffer.edit(
4664 edit_ranges
4665 .into_iter()
4666 .map(|range| (range, empty_str.clone())),
4667 None,
4668 cx,
4669 );
4670 buffer.snapshot(cx)
4671 });
4672 let new_selections = new_cursors
4673 .into_iter()
4674 .map(|(id, cursor)| {
4675 let cursor = cursor.to_point(&buffer);
4676 Selection {
4677 id,
4678 start: cursor,
4679 end: cursor,
4680 reversed: false,
4681 goal: SelectionGoal::None,
4682 }
4683 })
4684 .collect();
4685
4686 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4687 s.select(new_selections);
4688 });
4689 });
4690 }
4691
4692 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4693 let mut row_ranges = Vec::<Range<u32>>::new();
4694 for selection in self.selections.all::<Point>(cx) {
4695 let start = selection.start.row;
4696 let end = if selection.start.row == selection.end.row {
4697 selection.start.row + 1
4698 } else {
4699 selection.end.row
4700 };
4701
4702 if let Some(last_row_range) = row_ranges.last_mut() {
4703 if start <= last_row_range.end {
4704 last_row_range.end = end;
4705 continue;
4706 }
4707 }
4708 row_ranges.push(start..end);
4709 }
4710
4711 let snapshot = self.buffer.read(cx).snapshot(cx);
4712 let mut cursor_positions = Vec::new();
4713 for row_range in &row_ranges {
4714 let anchor = snapshot.anchor_before(Point::new(
4715 row_range.end - 1,
4716 snapshot.line_len(row_range.end - 1),
4717 ));
4718 cursor_positions.push(anchor.clone()..anchor);
4719 }
4720
4721 self.transact(cx, |this, cx| {
4722 for row_range in row_ranges.into_iter().rev() {
4723 for row in row_range.rev() {
4724 let end_of_line = Point::new(row, snapshot.line_len(row));
4725 let indent = snapshot.indent_size_for_line(row + 1);
4726 let start_of_next_line = Point::new(row + 1, indent.len);
4727
4728 let replace = if snapshot.line_len(row + 1) > indent.len {
4729 " "
4730 } else {
4731 ""
4732 };
4733
4734 this.buffer.update(cx, |buffer, cx| {
4735 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4736 });
4737 }
4738 }
4739
4740 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4741 s.select_anchor_ranges(cursor_positions)
4742 });
4743 });
4744 }
4745
4746 pub fn sort_lines_case_sensitive(
4747 &mut self,
4748 _: &SortLinesCaseSensitive,
4749 cx: &mut ViewContext<Self>,
4750 ) {
4751 self.manipulate_lines(cx, |lines| lines.sort())
4752 }
4753
4754 pub fn sort_lines_case_insensitive(
4755 &mut self,
4756 _: &SortLinesCaseInsensitive,
4757 cx: &mut ViewContext<Self>,
4758 ) {
4759 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4760 }
4761
4762 pub fn unique_lines_case_insensitive(
4763 &mut self,
4764 _: &UniqueLinesCaseInsensitive,
4765 cx: &mut ViewContext<Self>,
4766 ) {
4767 self.manipulate_lines(cx, |lines| {
4768 let mut seen = HashSet::default();
4769 lines.retain(|line| seen.insert(line.to_lowercase()));
4770 })
4771 }
4772
4773 pub fn unique_lines_case_sensitive(
4774 &mut self,
4775 _: &UniqueLinesCaseSensitive,
4776 cx: &mut ViewContext<Self>,
4777 ) {
4778 self.manipulate_lines(cx, |lines| {
4779 let mut seen = HashSet::default();
4780 lines.retain(|line| seen.insert(*line));
4781 })
4782 }
4783
4784 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4785 self.manipulate_lines(cx, |lines| lines.reverse())
4786 }
4787
4788 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4789 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4790 }
4791
4792 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4793 where
4794 Fn: FnMut(&mut Vec<&str>),
4795 {
4796 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4797 let buffer = self.buffer.read(cx).snapshot(cx);
4798
4799 let mut edits = Vec::new();
4800
4801 let selections = self.selections.all::<Point>(cx);
4802 let mut selections = selections.iter().peekable();
4803 let mut contiguous_row_selections = Vec::new();
4804 let mut new_selections = Vec::new();
4805 let mut added_lines = 0;
4806 let mut removed_lines = 0;
4807
4808 while let Some(selection) = selections.next() {
4809 let (start_row, end_row) = consume_contiguous_rows(
4810 &mut contiguous_row_selections,
4811 selection,
4812 &display_map,
4813 &mut selections,
4814 );
4815
4816 let start_point = Point::new(start_row, 0);
4817 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4818 let text = buffer
4819 .text_for_range(start_point..end_point)
4820 .collect::<String>();
4821
4822 let mut lines = text.split("\n").collect_vec();
4823
4824 let lines_before = lines.len();
4825 callback(&mut lines);
4826 let lines_after = lines.len();
4827
4828 edits.push((start_point..end_point, lines.join("\n")));
4829
4830 // Selections must change based on added and removed line count
4831 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
4832 let end_row = start_row + lines_after.saturating_sub(1) as u32;
4833 new_selections.push(Selection {
4834 id: selection.id,
4835 start: start_row,
4836 end: end_row,
4837 goal: SelectionGoal::None,
4838 reversed: selection.reversed,
4839 });
4840
4841 if lines_after > lines_before {
4842 added_lines += lines_after - lines_before;
4843 } else if lines_before > lines_after {
4844 removed_lines += lines_before - lines_after;
4845 }
4846 }
4847
4848 self.transact(cx, |this, cx| {
4849 let buffer = this.buffer.update(cx, |buffer, cx| {
4850 buffer.edit(edits, None, cx);
4851 buffer.snapshot(cx)
4852 });
4853
4854 // Recalculate offsets on newly edited buffer
4855 let new_selections = new_selections
4856 .iter()
4857 .map(|s| {
4858 let start_point = Point::new(s.start, 0);
4859 let end_point = Point::new(s.end, buffer.line_len(s.end));
4860 Selection {
4861 id: s.id,
4862 start: buffer.point_to_offset(start_point),
4863 end: buffer.point_to_offset(end_point),
4864 goal: s.goal,
4865 reversed: s.reversed,
4866 }
4867 })
4868 .collect();
4869
4870 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4871 s.select(new_selections);
4872 });
4873
4874 this.request_autoscroll(Autoscroll::fit(), cx);
4875 });
4876 }
4877
4878 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4879 self.manipulate_text(cx, |text| text.to_uppercase())
4880 }
4881
4882 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4883 self.manipulate_text(cx, |text| text.to_lowercase())
4884 }
4885
4886 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4887 self.manipulate_text(cx, |text| {
4888 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4889 // https://github.com/rutrum/convert-case/issues/16
4890 text.split("\n")
4891 .map(|line| line.to_case(Case::Title))
4892 .join("\n")
4893 })
4894 }
4895
4896 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4897 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4898 }
4899
4900 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4901 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4902 }
4903
4904 pub fn convert_to_upper_camel_case(
4905 &mut self,
4906 _: &ConvertToUpperCamelCase,
4907 cx: &mut ViewContext<Self>,
4908 ) {
4909 self.manipulate_text(cx, |text| {
4910 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4911 // https://github.com/rutrum/convert-case/issues/16
4912 text.split("\n")
4913 .map(|line| line.to_case(Case::UpperCamel))
4914 .join("\n")
4915 })
4916 }
4917
4918 pub fn convert_to_lower_camel_case(
4919 &mut self,
4920 _: &ConvertToLowerCamelCase,
4921 cx: &mut ViewContext<Self>,
4922 ) {
4923 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4924 }
4925
4926 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4927 where
4928 Fn: FnMut(&str) -> String,
4929 {
4930 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4931 let buffer = self.buffer.read(cx).snapshot(cx);
4932
4933 let mut new_selections = Vec::new();
4934 let mut edits = Vec::new();
4935 let mut selection_adjustment = 0i32;
4936
4937 for selection in self.selections.all::<usize>(cx) {
4938 let selection_is_empty = selection.is_empty();
4939
4940 let (start, end) = if selection_is_empty {
4941 let word_range = movement::surrounding_word(
4942 &display_map,
4943 selection.start.to_display_point(&display_map),
4944 );
4945 let start = word_range.start.to_offset(&display_map, Bias::Left);
4946 let end = word_range.end.to_offset(&display_map, Bias::Left);
4947 (start, end)
4948 } else {
4949 (selection.start, selection.end)
4950 };
4951
4952 let text = buffer.text_for_range(start..end).collect::<String>();
4953 let old_length = text.len() as i32;
4954 let text = callback(&text);
4955
4956 new_selections.push(Selection {
4957 start: (start as i32 - selection_adjustment) as usize,
4958 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4959 goal: SelectionGoal::None,
4960 ..selection
4961 });
4962
4963 selection_adjustment += old_length - text.len() as i32;
4964
4965 edits.push((start..end, text));
4966 }
4967
4968 self.transact(cx, |this, cx| {
4969 this.buffer.update(cx, |buffer, cx| {
4970 buffer.edit(edits, None, cx);
4971 });
4972
4973 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4974 s.select(new_selections);
4975 });
4976
4977 this.request_autoscroll(Autoscroll::fit(), cx);
4978 });
4979 }
4980
4981 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4982 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4983 let buffer = &display_map.buffer_snapshot;
4984 let selections = self.selections.all::<Point>(cx);
4985
4986 let mut edits = Vec::new();
4987 let mut selections_iter = selections.iter().peekable();
4988 while let Some(selection) = selections_iter.next() {
4989 // Avoid duplicating the same lines twice.
4990 let mut rows = selection.spanned_rows(false, &display_map);
4991
4992 while let Some(next_selection) = selections_iter.peek() {
4993 let next_rows = next_selection.spanned_rows(false, &display_map);
4994 if next_rows.start < rows.end {
4995 rows.end = next_rows.end;
4996 selections_iter.next().unwrap();
4997 } else {
4998 break;
4999 }
5000 }
5001
5002 // Copy the text from the selected row region and splice it at the start of the region.
5003 let start = Point::new(rows.start, 0);
5004 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5005 let text = buffer
5006 .text_for_range(start..end)
5007 .chain(Some("\n"))
5008 .collect::<String>();
5009 edits.push((start..start, text));
5010 }
5011
5012 self.transact(cx, |this, cx| {
5013 this.buffer.update(cx, |buffer, cx| {
5014 buffer.edit(edits, None, cx);
5015 });
5016
5017 this.request_autoscroll(Autoscroll::fit(), cx);
5018 });
5019 }
5020
5021 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5022 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5023 let buffer = self.buffer.read(cx).snapshot(cx);
5024
5025 let mut edits = Vec::new();
5026 let mut unfold_ranges = Vec::new();
5027 let mut refold_ranges = Vec::new();
5028
5029 let selections = self.selections.all::<Point>(cx);
5030 let mut selections = selections.iter().peekable();
5031 let mut contiguous_row_selections = Vec::new();
5032 let mut new_selections = Vec::new();
5033
5034 while let Some(selection) = selections.next() {
5035 // Find all the selections that span a contiguous row range
5036 let (start_row, end_row) = consume_contiguous_rows(
5037 &mut contiguous_row_selections,
5038 selection,
5039 &display_map,
5040 &mut selections,
5041 );
5042
5043 // Move the text spanned by the row range to be before the line preceding the row range
5044 if start_row > 0 {
5045 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5046 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5047 let insertion_point = display_map
5048 .prev_line_boundary(Point::new(start_row - 1, 0))
5049 .0;
5050
5051 // Don't move lines across excerpts
5052 if buffer
5053 .excerpt_boundaries_in_range((
5054 Bound::Excluded(insertion_point),
5055 Bound::Included(range_to_move.end),
5056 ))
5057 .next()
5058 .is_none()
5059 {
5060 let text = buffer
5061 .text_for_range(range_to_move.clone())
5062 .flat_map(|s| s.chars())
5063 .skip(1)
5064 .chain(['\n'])
5065 .collect::<String>();
5066
5067 edits.push((
5068 buffer.anchor_after(range_to_move.start)
5069 ..buffer.anchor_before(range_to_move.end),
5070 String::new(),
5071 ));
5072 let insertion_anchor = buffer.anchor_after(insertion_point);
5073 edits.push((insertion_anchor..insertion_anchor, text));
5074
5075 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5076
5077 // Move selections up
5078 new_selections.extend(contiguous_row_selections.drain(..).map(
5079 |mut selection| {
5080 selection.start.row -= row_delta;
5081 selection.end.row -= row_delta;
5082 selection
5083 },
5084 ));
5085
5086 // Move folds up
5087 unfold_ranges.push(range_to_move.clone());
5088 for fold in display_map.folds_in_range(
5089 buffer.anchor_before(range_to_move.start)
5090 ..buffer.anchor_after(range_to_move.end),
5091 ) {
5092 let mut start = fold.range.start.to_point(&buffer);
5093 let mut end = fold.range.end.to_point(&buffer);
5094 start.row -= row_delta;
5095 end.row -= row_delta;
5096 refold_ranges.push(start..end);
5097 }
5098 }
5099 }
5100
5101 // If we didn't move line(s), preserve the existing selections
5102 new_selections.append(&mut contiguous_row_selections);
5103 }
5104
5105 self.transact(cx, |this, cx| {
5106 this.unfold_ranges(unfold_ranges, true, true, cx);
5107 this.buffer.update(cx, |buffer, cx| {
5108 for (range, text) in edits {
5109 buffer.edit([(range, text)], None, cx);
5110 }
5111 });
5112 this.fold_ranges(refold_ranges, true, cx);
5113 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5114 s.select(new_selections);
5115 })
5116 });
5117 }
5118
5119 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5120 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5121 let buffer = self.buffer.read(cx).snapshot(cx);
5122
5123 let mut edits = Vec::new();
5124 let mut unfold_ranges = Vec::new();
5125 let mut refold_ranges = Vec::new();
5126
5127 let selections = self.selections.all::<Point>(cx);
5128 let mut selections = selections.iter().peekable();
5129 let mut contiguous_row_selections = Vec::new();
5130 let mut new_selections = Vec::new();
5131
5132 while let Some(selection) = selections.next() {
5133 // Find all the selections that span a contiguous row range
5134 let (start_row, end_row) = consume_contiguous_rows(
5135 &mut contiguous_row_selections,
5136 selection,
5137 &display_map,
5138 &mut selections,
5139 );
5140
5141 // Move the text spanned by the row range to be after the last line of the row range
5142 if end_row <= buffer.max_point().row {
5143 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5144 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5145
5146 // Don't move lines across excerpt boundaries
5147 if buffer
5148 .excerpt_boundaries_in_range((
5149 Bound::Excluded(range_to_move.start),
5150 Bound::Included(insertion_point),
5151 ))
5152 .next()
5153 .is_none()
5154 {
5155 let mut text = String::from("\n");
5156 text.extend(buffer.text_for_range(range_to_move.clone()));
5157 text.pop(); // Drop trailing newline
5158 edits.push((
5159 buffer.anchor_after(range_to_move.start)
5160 ..buffer.anchor_before(range_to_move.end),
5161 String::new(),
5162 ));
5163 let insertion_anchor = buffer.anchor_after(insertion_point);
5164 edits.push((insertion_anchor..insertion_anchor, text));
5165
5166 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5167
5168 // Move selections down
5169 new_selections.extend(contiguous_row_selections.drain(..).map(
5170 |mut selection| {
5171 selection.start.row += row_delta;
5172 selection.end.row += row_delta;
5173 selection
5174 },
5175 ));
5176
5177 // Move folds down
5178 unfold_ranges.push(range_to_move.clone());
5179 for fold in display_map.folds_in_range(
5180 buffer.anchor_before(range_to_move.start)
5181 ..buffer.anchor_after(range_to_move.end),
5182 ) {
5183 let mut start = fold.range.start.to_point(&buffer);
5184 let mut end = fold.range.end.to_point(&buffer);
5185 start.row += row_delta;
5186 end.row += row_delta;
5187 refold_ranges.push(start..end);
5188 }
5189 }
5190 }
5191
5192 // If we didn't move line(s), preserve the existing selections
5193 new_selections.append(&mut contiguous_row_selections);
5194 }
5195
5196 self.transact(cx, |this, cx| {
5197 this.unfold_ranges(unfold_ranges, true, true, cx);
5198 this.buffer.update(cx, |buffer, cx| {
5199 for (range, text) in edits {
5200 buffer.edit([(range, text)], None, cx);
5201 }
5202 });
5203 this.fold_ranges(refold_ranges, true, cx);
5204 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5205 });
5206 }
5207
5208 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5209 let text_layout_details = &self.text_layout_details(cx);
5210 self.transact(cx, |this, cx| {
5211 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5212 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5213 let line_mode = s.line_mode;
5214 s.move_with(|display_map, selection| {
5215 if !selection.is_empty() || line_mode {
5216 return;
5217 }
5218
5219 let mut head = selection.head();
5220 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5221 if head.column() == display_map.line_len(head.row()) {
5222 transpose_offset = display_map
5223 .buffer_snapshot
5224 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5225 }
5226
5227 if transpose_offset == 0 {
5228 return;
5229 }
5230
5231 *head.column_mut() += 1;
5232 head = display_map.clip_point(head, Bias::Right);
5233 let goal = SelectionGoal::HorizontalPosition(
5234 display_map
5235 .x_for_display_point(head, &text_layout_details)
5236 .into(),
5237 );
5238 selection.collapse_to(head, goal);
5239
5240 let transpose_start = display_map
5241 .buffer_snapshot
5242 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5243 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5244 let transpose_end = display_map
5245 .buffer_snapshot
5246 .clip_offset(transpose_offset + 1, Bias::Right);
5247 if let Some(ch) =
5248 display_map.buffer_snapshot.chars_at(transpose_start).next()
5249 {
5250 edits.push((transpose_start..transpose_offset, String::new()));
5251 edits.push((transpose_end..transpose_end, ch.to_string()));
5252 }
5253 }
5254 });
5255 edits
5256 });
5257 this.buffer
5258 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5259 let selections = this.selections.all::<usize>(cx);
5260 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5261 s.select(selections);
5262 });
5263 });
5264 }
5265
5266 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5267 let mut text = String::new();
5268 let buffer = self.buffer.read(cx).snapshot(cx);
5269 let mut selections = self.selections.all::<Point>(cx);
5270 let mut clipboard_selections = Vec::with_capacity(selections.len());
5271 {
5272 let max_point = buffer.max_point();
5273 let mut is_first = true;
5274 for selection in &mut selections {
5275 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5276 if is_entire_line {
5277 selection.start = Point::new(selection.start.row, 0);
5278 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5279 selection.goal = SelectionGoal::None;
5280 }
5281 if is_first {
5282 is_first = false;
5283 } else {
5284 text += "\n";
5285 }
5286 let mut len = 0;
5287 for chunk in buffer.text_for_range(selection.start..selection.end) {
5288 text.push_str(chunk);
5289 len += chunk.len();
5290 }
5291 clipboard_selections.push(ClipboardSelection {
5292 len,
5293 is_entire_line,
5294 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5295 });
5296 }
5297 }
5298
5299 self.transact(cx, |this, cx| {
5300 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5301 s.select(selections);
5302 });
5303 this.insert("", cx);
5304 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5305 });
5306 }
5307
5308 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5309 let selections = self.selections.all::<Point>(cx);
5310 let buffer = self.buffer.read(cx).read(cx);
5311 let mut text = String::new();
5312
5313 let mut clipboard_selections = Vec::with_capacity(selections.len());
5314 {
5315 let max_point = buffer.max_point();
5316 let mut is_first = true;
5317 for selection in selections.iter() {
5318 let mut start = selection.start;
5319 let mut end = selection.end;
5320 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5321 if is_entire_line {
5322 start = Point::new(start.row, 0);
5323 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5324 }
5325 if is_first {
5326 is_first = false;
5327 } else {
5328 text += "\n";
5329 }
5330 let mut len = 0;
5331 for chunk in buffer.text_for_range(start..end) {
5332 text.push_str(chunk);
5333 len += chunk.len();
5334 }
5335 clipboard_selections.push(ClipboardSelection {
5336 len,
5337 is_entire_line,
5338 first_line_indent: buffer.indent_size_for_line(start.row).len,
5339 });
5340 }
5341 }
5342
5343 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5344 }
5345
5346 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5347 if self.read_only(cx) {
5348 return;
5349 }
5350
5351 self.transact(cx, |this, cx| {
5352 if let Some(item) = cx.read_from_clipboard() {
5353 let clipboard_text = Cow::Borrowed(item.text());
5354 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5355 let old_selections = this.selections.all::<usize>(cx);
5356 let all_selections_were_entire_line =
5357 clipboard_selections.iter().all(|s| s.is_entire_line);
5358 let first_selection_indent_column =
5359 clipboard_selections.first().map(|s| s.first_line_indent);
5360 if clipboard_selections.len() != old_selections.len() {
5361 clipboard_selections.drain(..);
5362 }
5363
5364 this.buffer.update(cx, |buffer, cx| {
5365 let snapshot = buffer.read(cx);
5366 let mut start_offset = 0;
5367 let mut edits = Vec::new();
5368 let mut original_indent_columns = Vec::new();
5369 let line_mode = this.selections.line_mode;
5370 for (ix, selection) in old_selections.iter().enumerate() {
5371 let to_insert;
5372 let entire_line;
5373 let original_indent_column;
5374 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5375 let end_offset = start_offset + clipboard_selection.len;
5376 to_insert = &clipboard_text[start_offset..end_offset];
5377 entire_line = clipboard_selection.is_entire_line;
5378 start_offset = end_offset + 1;
5379 original_indent_column =
5380 Some(clipboard_selection.first_line_indent);
5381 } else {
5382 to_insert = clipboard_text.as_str();
5383 entire_line = all_selections_were_entire_line;
5384 original_indent_column = first_selection_indent_column
5385 }
5386
5387 // If the corresponding selection was empty when this slice of the
5388 // clipboard text was written, then the entire line containing the
5389 // selection was copied. If this selection is also currently empty,
5390 // then paste the line before the current line of the buffer.
5391 let range = if selection.is_empty() && !line_mode && entire_line {
5392 let column = selection.start.to_point(&snapshot).column as usize;
5393 let line_start = selection.start - column;
5394 line_start..line_start
5395 } else {
5396 selection.range()
5397 };
5398
5399 edits.push((range, to_insert));
5400 original_indent_columns.extend(original_indent_column);
5401 }
5402 drop(snapshot);
5403
5404 buffer.edit(
5405 edits,
5406 Some(AutoindentMode::Block {
5407 original_indent_columns,
5408 }),
5409 cx,
5410 );
5411 });
5412
5413 let selections = this.selections.all::<usize>(cx);
5414 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5415 } else {
5416 this.insert(&clipboard_text, cx);
5417 }
5418 }
5419 });
5420 }
5421
5422 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5423 if self.read_only(cx) {
5424 return;
5425 }
5426
5427 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5428 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5429 self.change_selections(None, cx, |s| {
5430 s.select_anchors(selections.to_vec());
5431 });
5432 }
5433 self.request_autoscroll(Autoscroll::fit(), cx);
5434 self.unmark_text(cx);
5435 self.refresh_copilot_suggestions(true, cx);
5436 cx.emit(EditorEvent::Edited);
5437 }
5438 }
5439
5440 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5441 if self.read_only(cx) {
5442 return;
5443 }
5444
5445 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5446 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5447 {
5448 self.change_selections(None, cx, |s| {
5449 s.select_anchors(selections.to_vec());
5450 });
5451 }
5452 self.request_autoscroll(Autoscroll::fit(), cx);
5453 self.unmark_text(cx);
5454 self.refresh_copilot_suggestions(true, cx);
5455 cx.emit(EditorEvent::Edited);
5456 }
5457 }
5458
5459 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5460 self.buffer
5461 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5462 }
5463
5464 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5465 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5466 let line_mode = s.line_mode;
5467 s.move_with(|map, selection| {
5468 let cursor = if selection.is_empty() && !line_mode {
5469 movement::left(map, selection.start)
5470 } else {
5471 selection.start
5472 };
5473 selection.collapse_to(cursor, SelectionGoal::None);
5474 });
5475 })
5476 }
5477
5478 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5479 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5480 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5481 })
5482 }
5483
5484 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5485 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5486 let line_mode = s.line_mode;
5487 s.move_with(|map, selection| {
5488 let cursor = if selection.is_empty() && !line_mode {
5489 movement::right(map, selection.end)
5490 } else {
5491 selection.end
5492 };
5493 selection.collapse_to(cursor, SelectionGoal::None)
5494 });
5495 })
5496 }
5497
5498 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5499 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5500 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5501 })
5502 }
5503
5504 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5505 if self.take_rename(true, cx).is_some() {
5506 return;
5507 }
5508
5509 if matches!(self.mode, EditorMode::SingleLine) {
5510 cx.propagate();
5511 return;
5512 }
5513
5514 let text_layout_details = &self.text_layout_details(cx);
5515
5516 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5517 let line_mode = s.line_mode;
5518 s.move_with(|map, selection| {
5519 if !selection.is_empty() && !line_mode {
5520 selection.goal = SelectionGoal::None;
5521 }
5522 let (cursor, goal) = movement::up(
5523 map,
5524 selection.start,
5525 selection.goal,
5526 false,
5527 &text_layout_details,
5528 );
5529 selection.collapse_to(cursor, goal);
5530 });
5531 })
5532 }
5533
5534 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5535 if self.take_rename(true, cx).is_some() {
5536 return;
5537 }
5538
5539 if matches!(self.mode, EditorMode::SingleLine) {
5540 cx.propagate();
5541 return;
5542 }
5543
5544 let text_layout_details = &self.text_layout_details(cx);
5545
5546 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5547 let line_mode = s.line_mode;
5548 s.move_with(|map, selection| {
5549 if !selection.is_empty() && !line_mode {
5550 selection.goal = SelectionGoal::None;
5551 }
5552 let (cursor, goal) = movement::up_by_rows(
5553 map,
5554 selection.start,
5555 action.lines,
5556 selection.goal,
5557 false,
5558 &text_layout_details,
5559 );
5560 selection.collapse_to(cursor, goal);
5561 });
5562 })
5563 }
5564
5565 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5566 if self.take_rename(true, cx).is_some() {
5567 return;
5568 }
5569
5570 if matches!(self.mode, EditorMode::SingleLine) {
5571 cx.propagate();
5572 return;
5573 }
5574
5575 let text_layout_details = &self.text_layout_details(cx);
5576
5577 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5578 let line_mode = s.line_mode;
5579 s.move_with(|map, selection| {
5580 if !selection.is_empty() && !line_mode {
5581 selection.goal = SelectionGoal::None;
5582 }
5583 let (cursor, goal) = movement::down_by_rows(
5584 map,
5585 selection.start,
5586 action.lines,
5587 selection.goal,
5588 false,
5589 &text_layout_details,
5590 );
5591 selection.collapse_to(cursor, goal);
5592 });
5593 })
5594 }
5595
5596 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5597 let text_layout_details = &self.text_layout_details(cx);
5598 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5599 s.move_heads_with(|map, head, goal| {
5600 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5601 })
5602 })
5603 }
5604
5605 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5606 let text_layout_details = &self.text_layout_details(cx);
5607 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5608 s.move_heads_with(|map, head, goal| {
5609 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5610 })
5611 })
5612 }
5613
5614 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5615 if self.take_rename(true, cx).is_some() {
5616 return;
5617 }
5618
5619 if matches!(self.mode, EditorMode::SingleLine) {
5620 cx.propagate();
5621 return;
5622 }
5623
5624 let row_count = if let Some(row_count) = self.visible_line_count() {
5625 row_count as u32 - 1
5626 } else {
5627 return;
5628 };
5629
5630 let autoscroll = if action.center_cursor {
5631 Autoscroll::center()
5632 } else {
5633 Autoscroll::fit()
5634 };
5635
5636 let text_layout_details = &self.text_layout_details(cx);
5637
5638 self.change_selections(Some(autoscroll), cx, |s| {
5639 let line_mode = s.line_mode;
5640 s.move_with(|map, selection| {
5641 if !selection.is_empty() && !line_mode {
5642 selection.goal = SelectionGoal::None;
5643 }
5644 let (cursor, goal) = movement::up_by_rows(
5645 map,
5646 selection.end,
5647 row_count,
5648 selection.goal,
5649 false,
5650 &text_layout_details,
5651 );
5652 selection.collapse_to(cursor, goal);
5653 });
5654 });
5655 }
5656
5657 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5658 let text_layout_details = &self.text_layout_details(cx);
5659 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5660 s.move_heads_with(|map, head, goal| {
5661 movement::up(map, head, goal, false, &text_layout_details)
5662 })
5663 })
5664 }
5665
5666 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5667 self.take_rename(true, cx);
5668
5669 if self.mode == EditorMode::SingleLine {
5670 cx.propagate();
5671 return;
5672 }
5673
5674 let text_layout_details = &self.text_layout_details(cx);
5675 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5676 let line_mode = s.line_mode;
5677 s.move_with(|map, selection| {
5678 if !selection.is_empty() && !line_mode {
5679 selection.goal = SelectionGoal::None;
5680 }
5681 let (cursor, goal) = movement::down(
5682 map,
5683 selection.end,
5684 selection.goal,
5685 false,
5686 &text_layout_details,
5687 );
5688 selection.collapse_to(cursor, goal);
5689 });
5690 });
5691 }
5692
5693 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5694 if self.take_rename(true, cx).is_some() {
5695 return;
5696 }
5697
5698 if self
5699 .context_menu
5700 .write()
5701 .as_mut()
5702 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5703 .unwrap_or(false)
5704 {
5705 return;
5706 }
5707
5708 if matches!(self.mode, EditorMode::SingleLine) {
5709 cx.propagate();
5710 return;
5711 }
5712
5713 let row_count = if let Some(row_count) = self.visible_line_count() {
5714 row_count as u32 - 1
5715 } else {
5716 return;
5717 };
5718
5719 let autoscroll = if action.center_cursor {
5720 Autoscroll::center()
5721 } else {
5722 Autoscroll::fit()
5723 };
5724
5725 let text_layout_details = &self.text_layout_details(cx);
5726 self.change_selections(Some(autoscroll), cx, |s| {
5727 let line_mode = s.line_mode;
5728 s.move_with(|map, selection| {
5729 if !selection.is_empty() && !line_mode {
5730 selection.goal = SelectionGoal::None;
5731 }
5732 let (cursor, goal) = movement::down_by_rows(
5733 map,
5734 selection.end,
5735 row_count,
5736 selection.goal,
5737 false,
5738 &text_layout_details,
5739 );
5740 selection.collapse_to(cursor, goal);
5741 });
5742 });
5743 }
5744
5745 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5746 let text_layout_details = &self.text_layout_details(cx);
5747 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5748 s.move_heads_with(|map, head, goal| {
5749 movement::down(map, head, goal, false, &text_layout_details)
5750 })
5751 });
5752 }
5753
5754 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5755 if let Some(context_menu) = self.context_menu.write().as_mut() {
5756 context_menu.select_first(self.project.as_ref(), cx);
5757 }
5758 }
5759
5760 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5761 if let Some(context_menu) = self.context_menu.write().as_mut() {
5762 context_menu.select_prev(self.project.as_ref(), cx);
5763 }
5764 }
5765
5766 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5767 if let Some(context_menu) = self.context_menu.write().as_mut() {
5768 context_menu.select_next(self.project.as_ref(), cx);
5769 }
5770 }
5771
5772 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5773 if let Some(context_menu) = self.context_menu.write().as_mut() {
5774 context_menu.select_last(self.project.as_ref(), cx);
5775 }
5776 }
5777
5778 pub fn move_to_previous_word_start(
5779 &mut self,
5780 _: &MoveToPreviousWordStart,
5781 cx: &mut ViewContext<Self>,
5782 ) {
5783 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5784 s.move_cursors_with(|map, head, _| {
5785 (
5786 movement::previous_word_start(map, head),
5787 SelectionGoal::None,
5788 )
5789 });
5790 })
5791 }
5792
5793 pub fn move_to_previous_subword_start(
5794 &mut self,
5795 _: &MoveToPreviousSubwordStart,
5796 cx: &mut ViewContext<Self>,
5797 ) {
5798 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5799 s.move_cursors_with(|map, head, _| {
5800 (
5801 movement::previous_subword_start(map, head),
5802 SelectionGoal::None,
5803 )
5804 });
5805 })
5806 }
5807
5808 pub fn select_to_previous_word_start(
5809 &mut self,
5810 _: &SelectToPreviousWordStart,
5811 cx: &mut ViewContext<Self>,
5812 ) {
5813 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5814 s.move_heads_with(|map, head, _| {
5815 (
5816 movement::previous_word_start(map, head),
5817 SelectionGoal::None,
5818 )
5819 });
5820 })
5821 }
5822
5823 pub fn select_to_previous_subword_start(
5824 &mut self,
5825 _: &SelectToPreviousSubwordStart,
5826 cx: &mut ViewContext<Self>,
5827 ) {
5828 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5829 s.move_heads_with(|map, head, _| {
5830 (
5831 movement::previous_subword_start(map, head),
5832 SelectionGoal::None,
5833 )
5834 });
5835 })
5836 }
5837
5838 pub fn delete_to_previous_word_start(
5839 &mut self,
5840 _: &DeleteToPreviousWordStart,
5841 cx: &mut ViewContext<Self>,
5842 ) {
5843 self.transact(cx, |this, cx| {
5844 this.select_autoclose_pair(cx);
5845 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5846 let line_mode = s.line_mode;
5847 s.move_with(|map, selection| {
5848 if selection.is_empty() && !line_mode {
5849 let cursor = movement::previous_word_start(map, selection.head());
5850 selection.set_head(cursor, SelectionGoal::None);
5851 }
5852 });
5853 });
5854 this.insert("", cx);
5855 });
5856 }
5857
5858 pub fn delete_to_previous_subword_start(
5859 &mut self,
5860 _: &DeleteToPreviousSubwordStart,
5861 cx: &mut ViewContext<Self>,
5862 ) {
5863 self.transact(cx, |this, cx| {
5864 this.select_autoclose_pair(cx);
5865 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5866 let line_mode = s.line_mode;
5867 s.move_with(|map, selection| {
5868 if selection.is_empty() && !line_mode {
5869 let cursor = movement::previous_subword_start(map, selection.head());
5870 selection.set_head(cursor, SelectionGoal::None);
5871 }
5872 });
5873 });
5874 this.insert("", cx);
5875 });
5876 }
5877
5878 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5879 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5880 s.move_cursors_with(|map, head, _| {
5881 (movement::next_word_end(map, head), SelectionGoal::None)
5882 });
5883 })
5884 }
5885
5886 pub fn move_to_next_subword_end(
5887 &mut self,
5888 _: &MoveToNextSubwordEnd,
5889 cx: &mut ViewContext<Self>,
5890 ) {
5891 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5892 s.move_cursors_with(|map, head, _| {
5893 (movement::next_subword_end(map, head), SelectionGoal::None)
5894 });
5895 })
5896 }
5897
5898 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5899 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5900 s.move_heads_with(|map, head, _| {
5901 (movement::next_word_end(map, head), SelectionGoal::None)
5902 });
5903 })
5904 }
5905
5906 pub fn select_to_next_subword_end(
5907 &mut self,
5908 _: &SelectToNextSubwordEnd,
5909 cx: &mut ViewContext<Self>,
5910 ) {
5911 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5912 s.move_heads_with(|map, head, _| {
5913 (movement::next_subword_end(map, head), SelectionGoal::None)
5914 });
5915 })
5916 }
5917
5918 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5919 self.transact(cx, |this, cx| {
5920 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5921 let line_mode = s.line_mode;
5922 s.move_with(|map, selection| {
5923 if selection.is_empty() && !line_mode {
5924 let cursor = movement::next_word_end(map, selection.head());
5925 selection.set_head(cursor, SelectionGoal::None);
5926 }
5927 });
5928 });
5929 this.insert("", cx);
5930 });
5931 }
5932
5933 pub fn delete_to_next_subword_end(
5934 &mut self,
5935 _: &DeleteToNextSubwordEnd,
5936 cx: &mut ViewContext<Self>,
5937 ) {
5938 self.transact(cx, |this, cx| {
5939 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5940 s.move_with(|map, selection| {
5941 if selection.is_empty() {
5942 let cursor = movement::next_subword_end(map, selection.head());
5943 selection.set_head(cursor, SelectionGoal::None);
5944 }
5945 });
5946 });
5947 this.insert("", cx);
5948 });
5949 }
5950
5951 pub fn move_to_beginning_of_line(
5952 &mut self,
5953 _: &MoveToBeginningOfLine,
5954 cx: &mut ViewContext<Self>,
5955 ) {
5956 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5957 s.move_cursors_with(|map, head, _| {
5958 (
5959 movement::indented_line_beginning(map, head, true),
5960 SelectionGoal::None,
5961 )
5962 });
5963 })
5964 }
5965
5966 pub fn select_to_beginning_of_line(
5967 &mut self,
5968 action: &SelectToBeginningOfLine,
5969 cx: &mut ViewContext<Self>,
5970 ) {
5971 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5972 s.move_heads_with(|map, head, _| {
5973 (
5974 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5975 SelectionGoal::None,
5976 )
5977 });
5978 });
5979 }
5980
5981 pub fn delete_to_beginning_of_line(
5982 &mut self,
5983 _: &DeleteToBeginningOfLine,
5984 cx: &mut ViewContext<Self>,
5985 ) {
5986 self.transact(cx, |this, cx| {
5987 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5988 s.move_with(|_, selection| {
5989 selection.reversed = true;
5990 });
5991 });
5992
5993 this.select_to_beginning_of_line(
5994 &SelectToBeginningOfLine {
5995 stop_at_soft_wraps: false,
5996 },
5997 cx,
5998 );
5999 this.backspace(&Backspace, cx);
6000 });
6001 }
6002
6003 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6004 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6005 s.move_cursors_with(|map, head, _| {
6006 (movement::line_end(map, head, true), SelectionGoal::None)
6007 });
6008 })
6009 }
6010
6011 pub fn select_to_end_of_line(
6012 &mut self,
6013 action: &SelectToEndOfLine,
6014 cx: &mut ViewContext<Self>,
6015 ) {
6016 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6017 s.move_heads_with(|map, head, _| {
6018 (
6019 movement::line_end(map, head, action.stop_at_soft_wraps),
6020 SelectionGoal::None,
6021 )
6022 });
6023 })
6024 }
6025
6026 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6027 self.transact(cx, |this, cx| {
6028 this.select_to_end_of_line(
6029 &SelectToEndOfLine {
6030 stop_at_soft_wraps: false,
6031 },
6032 cx,
6033 );
6034 this.delete(&Delete, cx);
6035 });
6036 }
6037
6038 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6039 self.transact(cx, |this, cx| {
6040 this.select_to_end_of_line(
6041 &SelectToEndOfLine {
6042 stop_at_soft_wraps: false,
6043 },
6044 cx,
6045 );
6046 this.cut(&Cut, cx);
6047 });
6048 }
6049
6050 pub fn move_to_start_of_paragraph(
6051 &mut self,
6052 _: &MoveToStartOfParagraph,
6053 cx: &mut ViewContext<Self>,
6054 ) {
6055 if matches!(self.mode, EditorMode::SingleLine) {
6056 cx.propagate();
6057 return;
6058 }
6059
6060 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6061 s.move_with(|map, selection| {
6062 selection.collapse_to(
6063 movement::start_of_paragraph(map, selection.head(), 1),
6064 SelectionGoal::None,
6065 )
6066 });
6067 })
6068 }
6069
6070 pub fn move_to_end_of_paragraph(
6071 &mut self,
6072 _: &MoveToEndOfParagraph,
6073 cx: &mut ViewContext<Self>,
6074 ) {
6075 if matches!(self.mode, EditorMode::SingleLine) {
6076 cx.propagate();
6077 return;
6078 }
6079
6080 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6081 s.move_with(|map, selection| {
6082 selection.collapse_to(
6083 movement::end_of_paragraph(map, selection.head(), 1),
6084 SelectionGoal::None,
6085 )
6086 });
6087 })
6088 }
6089
6090 pub fn select_to_start_of_paragraph(
6091 &mut self,
6092 _: &SelectToStartOfParagraph,
6093 cx: &mut ViewContext<Self>,
6094 ) {
6095 if matches!(self.mode, EditorMode::SingleLine) {
6096 cx.propagate();
6097 return;
6098 }
6099
6100 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6101 s.move_heads_with(|map, head, _| {
6102 (
6103 movement::start_of_paragraph(map, head, 1),
6104 SelectionGoal::None,
6105 )
6106 });
6107 })
6108 }
6109
6110 pub fn select_to_end_of_paragraph(
6111 &mut self,
6112 _: &SelectToEndOfParagraph,
6113 cx: &mut ViewContext<Self>,
6114 ) {
6115 if matches!(self.mode, EditorMode::SingleLine) {
6116 cx.propagate();
6117 return;
6118 }
6119
6120 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6121 s.move_heads_with(|map, head, _| {
6122 (
6123 movement::end_of_paragraph(map, head, 1),
6124 SelectionGoal::None,
6125 )
6126 });
6127 })
6128 }
6129
6130 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6131 if matches!(self.mode, EditorMode::SingleLine) {
6132 cx.propagate();
6133 return;
6134 }
6135
6136 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6137 s.select_ranges(vec![0..0]);
6138 });
6139 }
6140
6141 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6142 let mut selection = self.selections.last::<Point>(cx);
6143 selection.set_head(Point::zero(), SelectionGoal::None);
6144
6145 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6146 s.select(vec![selection]);
6147 });
6148 }
6149
6150 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6151 if matches!(self.mode, EditorMode::SingleLine) {
6152 cx.propagate();
6153 return;
6154 }
6155
6156 let cursor = self.buffer.read(cx).read(cx).len();
6157 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6158 s.select_ranges(vec![cursor..cursor])
6159 });
6160 }
6161
6162 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6163 self.nav_history = nav_history;
6164 }
6165
6166 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6167 self.nav_history.as_ref()
6168 }
6169
6170 fn push_to_nav_history(
6171 &mut self,
6172 cursor_anchor: Anchor,
6173 new_position: Option<Point>,
6174 cx: &mut ViewContext<Self>,
6175 ) {
6176 if let Some(nav_history) = self.nav_history.as_mut() {
6177 let buffer = self.buffer.read(cx).read(cx);
6178 let cursor_position = cursor_anchor.to_point(&buffer);
6179 let scroll_state = self.scroll_manager.anchor();
6180 let scroll_top_row = scroll_state.top_row(&buffer);
6181 drop(buffer);
6182
6183 if let Some(new_position) = new_position {
6184 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6185 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6186 return;
6187 }
6188 }
6189
6190 nav_history.push(
6191 Some(NavigationData {
6192 cursor_anchor,
6193 cursor_position,
6194 scroll_anchor: scroll_state,
6195 scroll_top_row,
6196 }),
6197 cx,
6198 );
6199 }
6200 }
6201
6202 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6203 let buffer = self.buffer.read(cx).snapshot(cx);
6204 let mut selection = self.selections.first::<usize>(cx);
6205 selection.set_head(buffer.len(), SelectionGoal::None);
6206 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6207 s.select(vec![selection]);
6208 });
6209 }
6210
6211 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6212 let end = self.buffer.read(cx).read(cx).len();
6213 self.change_selections(None, cx, |s| {
6214 s.select_ranges(vec![0..end]);
6215 });
6216 }
6217
6218 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6219 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6220 let mut selections = self.selections.all::<Point>(cx);
6221 let max_point = display_map.buffer_snapshot.max_point();
6222 for selection in &mut selections {
6223 let rows = selection.spanned_rows(true, &display_map);
6224 selection.start = Point::new(rows.start, 0);
6225 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6226 selection.reversed = false;
6227 }
6228 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6229 s.select(selections);
6230 });
6231 }
6232
6233 pub fn split_selection_into_lines(
6234 &mut self,
6235 _: &SplitSelectionIntoLines,
6236 cx: &mut ViewContext<Self>,
6237 ) {
6238 let mut to_unfold = Vec::new();
6239 let mut new_selection_ranges = Vec::new();
6240 {
6241 let selections = self.selections.all::<Point>(cx);
6242 let buffer = self.buffer.read(cx).read(cx);
6243 for selection in selections {
6244 for row in selection.start.row..selection.end.row {
6245 let cursor = Point::new(row, buffer.line_len(row));
6246 new_selection_ranges.push(cursor..cursor);
6247 }
6248 new_selection_ranges.push(selection.end..selection.end);
6249 to_unfold.push(selection.start..selection.end);
6250 }
6251 }
6252 self.unfold_ranges(to_unfold, true, true, cx);
6253 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6254 s.select_ranges(new_selection_ranges);
6255 });
6256 }
6257
6258 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6259 self.add_selection(true, cx);
6260 }
6261
6262 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6263 self.add_selection(false, cx);
6264 }
6265
6266 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6267 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6268 let mut selections = self.selections.all::<Point>(cx);
6269 let text_layout_details = self.text_layout_details(cx);
6270 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6271 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6272 let range = oldest_selection.display_range(&display_map).sorted();
6273
6274 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6275 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6276 let positions = start_x.min(end_x)..start_x.max(end_x);
6277
6278 selections.clear();
6279 let mut stack = Vec::new();
6280 for row in range.start.row()..=range.end.row() {
6281 if let Some(selection) = self.selections.build_columnar_selection(
6282 &display_map,
6283 row,
6284 &positions,
6285 oldest_selection.reversed,
6286 &text_layout_details,
6287 ) {
6288 stack.push(selection.id);
6289 selections.push(selection);
6290 }
6291 }
6292
6293 if above {
6294 stack.reverse();
6295 }
6296
6297 AddSelectionsState { above, stack }
6298 });
6299
6300 let last_added_selection = *state.stack.last().unwrap();
6301 let mut new_selections = Vec::new();
6302 if above == state.above {
6303 let end_row = if above {
6304 0
6305 } else {
6306 display_map.max_point().row()
6307 };
6308
6309 'outer: for selection in selections {
6310 if selection.id == last_added_selection {
6311 let range = selection.display_range(&display_map).sorted();
6312 debug_assert_eq!(range.start.row(), range.end.row());
6313 let mut row = range.start.row();
6314 let positions =
6315 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6316 px(start)..px(end)
6317 } else {
6318 let start_x =
6319 display_map.x_for_display_point(range.start, &text_layout_details);
6320 let end_x =
6321 display_map.x_for_display_point(range.end, &text_layout_details);
6322 start_x.min(end_x)..start_x.max(end_x)
6323 };
6324
6325 while row != end_row {
6326 if above {
6327 row -= 1;
6328 } else {
6329 row += 1;
6330 }
6331
6332 if let Some(new_selection) = self.selections.build_columnar_selection(
6333 &display_map,
6334 row,
6335 &positions,
6336 selection.reversed,
6337 &text_layout_details,
6338 ) {
6339 state.stack.push(new_selection.id);
6340 if above {
6341 new_selections.push(new_selection);
6342 new_selections.push(selection);
6343 } else {
6344 new_selections.push(selection);
6345 new_selections.push(new_selection);
6346 }
6347
6348 continue 'outer;
6349 }
6350 }
6351 }
6352
6353 new_selections.push(selection);
6354 }
6355 } else {
6356 new_selections = selections;
6357 new_selections.retain(|s| s.id != last_added_selection);
6358 state.stack.pop();
6359 }
6360
6361 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6362 s.select(new_selections);
6363 });
6364 if state.stack.len() > 1 {
6365 self.add_selections_state = Some(state);
6366 }
6367 }
6368
6369 pub fn select_next_match_internal(
6370 &mut self,
6371 display_map: &DisplaySnapshot,
6372 replace_newest: bool,
6373 autoscroll: Option<Autoscroll>,
6374 cx: &mut ViewContext<Self>,
6375 ) -> Result<()> {
6376 fn select_next_match_ranges(
6377 this: &mut Editor,
6378 range: Range<usize>,
6379 replace_newest: bool,
6380 auto_scroll: Option<Autoscroll>,
6381 cx: &mut ViewContext<Editor>,
6382 ) {
6383 this.unfold_ranges([range.clone()], false, true, cx);
6384 this.change_selections(auto_scroll, cx, |s| {
6385 if replace_newest {
6386 s.delete(s.newest_anchor().id);
6387 }
6388 s.insert_range(range.clone());
6389 });
6390 }
6391
6392 let buffer = &display_map.buffer_snapshot;
6393 let mut selections = self.selections.all::<usize>(cx);
6394 if let Some(mut select_next_state) = self.select_next_state.take() {
6395 let query = &select_next_state.query;
6396 if !select_next_state.done {
6397 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6398 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6399 let mut next_selected_range = None;
6400
6401 let bytes_after_last_selection =
6402 buffer.bytes_in_range(last_selection.end..buffer.len());
6403 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6404 let query_matches = query
6405 .stream_find_iter(bytes_after_last_selection)
6406 .map(|result| (last_selection.end, result))
6407 .chain(
6408 query
6409 .stream_find_iter(bytes_before_first_selection)
6410 .map(|result| (0, result)),
6411 );
6412
6413 for (start_offset, query_match) in query_matches {
6414 let query_match = query_match.unwrap(); // can only fail due to I/O
6415 let offset_range =
6416 start_offset + query_match.start()..start_offset + query_match.end();
6417 let display_range = offset_range.start.to_display_point(&display_map)
6418 ..offset_range.end.to_display_point(&display_map);
6419
6420 if !select_next_state.wordwise
6421 || (!movement::is_inside_word(&display_map, display_range.start)
6422 && !movement::is_inside_word(&display_map, display_range.end))
6423 {
6424 // TODO: This is n^2, because we might check all the selections
6425 if selections
6426 .iter()
6427 .find(|selection| selection.range().overlaps(&offset_range))
6428 .is_none()
6429 {
6430 next_selected_range = Some(offset_range);
6431 break;
6432 }
6433 }
6434 }
6435
6436 if let Some(next_selected_range) = next_selected_range {
6437 select_next_match_ranges(
6438 self,
6439 next_selected_range,
6440 replace_newest,
6441 autoscroll,
6442 cx,
6443 );
6444 } else {
6445 select_next_state.done = true;
6446 }
6447 }
6448
6449 self.select_next_state = Some(select_next_state);
6450 } else {
6451 let mut only_carets = true;
6452 let mut same_text_selected = true;
6453 let mut selected_text = None;
6454
6455 let mut selections_iter = selections.iter().peekable();
6456 while let Some(selection) = selections_iter.next() {
6457 if selection.start != selection.end {
6458 only_carets = false;
6459 }
6460
6461 if same_text_selected {
6462 if selected_text.is_none() {
6463 selected_text =
6464 Some(buffer.text_for_range(selection.range()).collect::<String>());
6465 }
6466
6467 if let Some(next_selection) = selections_iter.peek() {
6468 if next_selection.range().len() == selection.range().len() {
6469 let next_selected_text = buffer
6470 .text_for_range(next_selection.range())
6471 .collect::<String>();
6472 if Some(next_selected_text) != selected_text {
6473 same_text_selected = false;
6474 selected_text = None;
6475 }
6476 } else {
6477 same_text_selected = false;
6478 selected_text = None;
6479 }
6480 }
6481 }
6482 }
6483
6484 if only_carets {
6485 for selection in &mut selections {
6486 let word_range = movement::surrounding_word(
6487 &display_map,
6488 selection.start.to_display_point(&display_map),
6489 );
6490 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6491 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6492 selection.goal = SelectionGoal::None;
6493 selection.reversed = false;
6494 select_next_match_ranges(
6495 self,
6496 selection.start..selection.end,
6497 replace_newest,
6498 autoscroll,
6499 cx,
6500 );
6501 }
6502
6503 if selections.len() == 1 {
6504 let selection = selections
6505 .last()
6506 .expect("ensured that there's only one selection");
6507 let query = buffer
6508 .text_for_range(selection.start..selection.end)
6509 .collect::<String>();
6510 let is_empty = query.is_empty();
6511 let select_state = SelectNextState {
6512 query: AhoCorasick::new(&[query])?,
6513 wordwise: true,
6514 done: is_empty,
6515 };
6516 self.select_next_state = Some(select_state);
6517 } else {
6518 self.select_next_state = None;
6519 }
6520 } else if let Some(selected_text) = selected_text {
6521 self.select_next_state = Some(SelectNextState {
6522 query: AhoCorasick::new(&[selected_text])?,
6523 wordwise: false,
6524 done: false,
6525 });
6526 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6527 }
6528 }
6529 Ok(())
6530 }
6531
6532 pub fn select_all_matches(
6533 &mut self,
6534 _action: &SelectAllMatches,
6535 cx: &mut ViewContext<Self>,
6536 ) -> Result<()> {
6537 self.push_to_selection_history();
6538 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6539
6540 self.select_next_match_internal(&display_map, false, None, cx)?;
6541 let Some(select_next_state) = self.select_next_state.as_mut() else {
6542 return Ok(());
6543 };
6544 if select_next_state.done {
6545 return Ok(());
6546 }
6547
6548 let mut new_selections = self.selections.all::<usize>(cx);
6549
6550 let buffer = &display_map.buffer_snapshot;
6551 let query_matches = select_next_state
6552 .query
6553 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6554
6555 for query_match in query_matches {
6556 let query_match = query_match.unwrap(); // can only fail due to I/O
6557 let offset_range = query_match.start()..query_match.end();
6558 let display_range = offset_range.start.to_display_point(&display_map)
6559 ..offset_range.end.to_display_point(&display_map);
6560
6561 if !select_next_state.wordwise
6562 || (!movement::is_inside_word(&display_map, display_range.start)
6563 && !movement::is_inside_word(&display_map, display_range.end))
6564 {
6565 self.selections.change_with(cx, |selections| {
6566 new_selections.push(Selection {
6567 id: selections.new_selection_id(),
6568 start: offset_range.start,
6569 end: offset_range.end,
6570 reversed: false,
6571 goal: SelectionGoal::None,
6572 });
6573 });
6574 }
6575 }
6576
6577 new_selections.sort_by_key(|selection| selection.start);
6578 let mut ix = 0;
6579 while ix + 1 < new_selections.len() {
6580 let current_selection = &new_selections[ix];
6581 let next_selection = &new_selections[ix + 1];
6582 if current_selection.range().overlaps(&next_selection.range()) {
6583 if current_selection.id < next_selection.id {
6584 new_selections.remove(ix + 1);
6585 } else {
6586 new_selections.remove(ix);
6587 }
6588 } else {
6589 ix += 1;
6590 }
6591 }
6592
6593 select_next_state.done = true;
6594 self.unfold_ranges(
6595 new_selections.iter().map(|selection| selection.range()),
6596 false,
6597 false,
6598 cx,
6599 );
6600 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6601 selections.select(new_selections)
6602 });
6603
6604 Ok(())
6605 }
6606
6607 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6608 self.push_to_selection_history();
6609 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6610 self.select_next_match_internal(
6611 &display_map,
6612 action.replace_newest,
6613 Some(Autoscroll::newest()),
6614 cx,
6615 )?;
6616 Ok(())
6617 }
6618
6619 pub fn select_previous(
6620 &mut self,
6621 action: &SelectPrevious,
6622 cx: &mut ViewContext<Self>,
6623 ) -> Result<()> {
6624 self.push_to_selection_history();
6625 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6626 let buffer = &display_map.buffer_snapshot;
6627 let mut selections = self.selections.all::<usize>(cx);
6628 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6629 let query = &select_prev_state.query;
6630 if !select_prev_state.done {
6631 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6632 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6633 let mut next_selected_range = None;
6634 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6635 let bytes_before_last_selection =
6636 buffer.reversed_bytes_in_range(0..last_selection.start);
6637 let bytes_after_first_selection =
6638 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6639 let query_matches = query
6640 .stream_find_iter(bytes_before_last_selection)
6641 .map(|result| (last_selection.start, result))
6642 .chain(
6643 query
6644 .stream_find_iter(bytes_after_first_selection)
6645 .map(|result| (buffer.len(), result)),
6646 );
6647 for (end_offset, query_match) in query_matches {
6648 let query_match = query_match.unwrap(); // can only fail due to I/O
6649 let offset_range =
6650 end_offset - query_match.end()..end_offset - query_match.start();
6651 let display_range = offset_range.start.to_display_point(&display_map)
6652 ..offset_range.end.to_display_point(&display_map);
6653
6654 if !select_prev_state.wordwise
6655 || (!movement::is_inside_word(&display_map, display_range.start)
6656 && !movement::is_inside_word(&display_map, display_range.end))
6657 {
6658 next_selected_range = Some(offset_range);
6659 break;
6660 }
6661 }
6662
6663 if let Some(next_selected_range) = next_selected_range {
6664 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6665 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6666 if action.replace_newest {
6667 s.delete(s.newest_anchor().id);
6668 }
6669 s.insert_range(next_selected_range);
6670 });
6671 } else {
6672 select_prev_state.done = true;
6673 }
6674 }
6675
6676 self.select_prev_state = Some(select_prev_state);
6677 } else {
6678 let mut only_carets = true;
6679 let mut same_text_selected = true;
6680 let mut selected_text = None;
6681
6682 let mut selections_iter = selections.iter().peekable();
6683 while let Some(selection) = selections_iter.next() {
6684 if selection.start != selection.end {
6685 only_carets = false;
6686 }
6687
6688 if same_text_selected {
6689 if selected_text.is_none() {
6690 selected_text =
6691 Some(buffer.text_for_range(selection.range()).collect::<String>());
6692 }
6693
6694 if let Some(next_selection) = selections_iter.peek() {
6695 if next_selection.range().len() == selection.range().len() {
6696 let next_selected_text = buffer
6697 .text_for_range(next_selection.range())
6698 .collect::<String>();
6699 if Some(next_selected_text) != selected_text {
6700 same_text_selected = false;
6701 selected_text = None;
6702 }
6703 } else {
6704 same_text_selected = false;
6705 selected_text = None;
6706 }
6707 }
6708 }
6709 }
6710
6711 if only_carets {
6712 for selection in &mut selections {
6713 let word_range = movement::surrounding_word(
6714 &display_map,
6715 selection.start.to_display_point(&display_map),
6716 );
6717 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6718 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6719 selection.goal = SelectionGoal::None;
6720 selection.reversed = false;
6721 }
6722 if selections.len() == 1 {
6723 let selection = selections
6724 .last()
6725 .expect("ensured that there's only one selection");
6726 let query = buffer
6727 .text_for_range(selection.start..selection.end)
6728 .collect::<String>();
6729 let is_empty = query.is_empty();
6730 let select_state = SelectNextState {
6731 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6732 wordwise: true,
6733 done: is_empty,
6734 };
6735 self.select_prev_state = Some(select_state);
6736 } else {
6737 self.select_prev_state = None;
6738 }
6739
6740 self.unfold_ranges(
6741 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6742 false,
6743 true,
6744 cx,
6745 );
6746 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6747 s.select(selections);
6748 });
6749 } else if let Some(selected_text) = selected_text {
6750 self.select_prev_state = Some(SelectNextState {
6751 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6752 wordwise: false,
6753 done: false,
6754 });
6755 self.select_previous(action, cx)?;
6756 }
6757 }
6758 Ok(())
6759 }
6760
6761 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6762 let text_layout_details = &self.text_layout_details(cx);
6763 self.transact(cx, |this, cx| {
6764 let mut selections = this.selections.all::<Point>(cx);
6765 let mut edits = Vec::new();
6766 let mut selection_edit_ranges = Vec::new();
6767 let mut last_toggled_row = None;
6768 let snapshot = this.buffer.read(cx).read(cx);
6769 let empty_str: Arc<str> = "".into();
6770 let mut suffixes_inserted = Vec::new();
6771
6772 fn comment_prefix_range(
6773 snapshot: &MultiBufferSnapshot,
6774 row: u32,
6775 comment_prefix: &str,
6776 comment_prefix_whitespace: &str,
6777 ) -> Range<Point> {
6778 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6779
6780 let mut line_bytes = snapshot
6781 .bytes_in_range(start..snapshot.max_point())
6782 .flatten()
6783 .copied();
6784
6785 // If this line currently begins with the line comment prefix, then record
6786 // the range containing the prefix.
6787 if line_bytes
6788 .by_ref()
6789 .take(comment_prefix.len())
6790 .eq(comment_prefix.bytes())
6791 {
6792 // Include any whitespace that matches the comment prefix.
6793 let matching_whitespace_len = line_bytes
6794 .zip(comment_prefix_whitespace.bytes())
6795 .take_while(|(a, b)| a == b)
6796 .count() as u32;
6797 let end = Point::new(
6798 start.row,
6799 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6800 );
6801 start..end
6802 } else {
6803 start..start
6804 }
6805 }
6806
6807 fn comment_suffix_range(
6808 snapshot: &MultiBufferSnapshot,
6809 row: u32,
6810 comment_suffix: &str,
6811 comment_suffix_has_leading_space: bool,
6812 ) -> Range<Point> {
6813 let end = Point::new(row, snapshot.line_len(row));
6814 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6815
6816 let mut line_end_bytes = snapshot
6817 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6818 .flatten()
6819 .copied();
6820
6821 let leading_space_len = if suffix_start_column > 0
6822 && line_end_bytes.next() == Some(b' ')
6823 && comment_suffix_has_leading_space
6824 {
6825 1
6826 } else {
6827 0
6828 };
6829
6830 // If this line currently begins with the line comment prefix, then record
6831 // the range containing the prefix.
6832 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6833 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6834 start..end
6835 } else {
6836 end..end
6837 }
6838 }
6839
6840 // TODO: Handle selections that cross excerpts
6841 for selection in &mut selections {
6842 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6843 let language = if let Some(language) =
6844 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6845 {
6846 language
6847 } else {
6848 continue;
6849 };
6850
6851 selection_edit_ranges.clear();
6852
6853 // If multiple selections contain a given row, avoid processing that
6854 // row more than once.
6855 let mut start_row = selection.start.row;
6856 if last_toggled_row == Some(start_row) {
6857 start_row += 1;
6858 }
6859 let end_row =
6860 if selection.end.row > selection.start.row && selection.end.column == 0 {
6861 selection.end.row - 1
6862 } else {
6863 selection.end.row
6864 };
6865 last_toggled_row = Some(end_row);
6866
6867 if start_row > end_row {
6868 continue;
6869 }
6870
6871 // If the language has line comments, toggle those.
6872 if let Some(full_comment_prefix) = language
6873 .line_comment_prefixes()
6874 .and_then(|prefixes| prefixes.first())
6875 {
6876 // Split the comment prefix's trailing whitespace into a separate string,
6877 // as that portion won't be used for detecting if a line is a comment.
6878 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6879 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6880 let mut all_selection_lines_are_comments = true;
6881
6882 for row in start_row..=end_row {
6883 if start_row < end_row && snapshot.is_line_blank(row) {
6884 continue;
6885 }
6886
6887 let prefix_range = comment_prefix_range(
6888 snapshot.deref(),
6889 row,
6890 comment_prefix,
6891 comment_prefix_whitespace,
6892 );
6893 if prefix_range.is_empty() {
6894 all_selection_lines_are_comments = false;
6895 }
6896 selection_edit_ranges.push(prefix_range);
6897 }
6898
6899 if all_selection_lines_are_comments {
6900 edits.extend(
6901 selection_edit_ranges
6902 .iter()
6903 .cloned()
6904 .map(|range| (range, empty_str.clone())),
6905 );
6906 } else {
6907 let min_column = selection_edit_ranges
6908 .iter()
6909 .map(|r| r.start.column)
6910 .min()
6911 .unwrap_or(0);
6912 edits.extend(selection_edit_ranges.iter().map(|range| {
6913 let position = Point::new(range.start.row, min_column);
6914 (position..position, full_comment_prefix.clone())
6915 }));
6916 }
6917 } else if let Some((full_comment_prefix, comment_suffix)) =
6918 language.block_comment_delimiters()
6919 {
6920 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6921 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6922 let prefix_range = comment_prefix_range(
6923 snapshot.deref(),
6924 start_row,
6925 comment_prefix,
6926 comment_prefix_whitespace,
6927 );
6928 let suffix_range = comment_suffix_range(
6929 snapshot.deref(),
6930 end_row,
6931 comment_suffix.trim_start_matches(' '),
6932 comment_suffix.starts_with(' '),
6933 );
6934
6935 if prefix_range.is_empty() || suffix_range.is_empty() {
6936 edits.push((
6937 prefix_range.start..prefix_range.start,
6938 full_comment_prefix.clone(),
6939 ));
6940 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6941 suffixes_inserted.push((end_row, comment_suffix.len()));
6942 } else {
6943 edits.push((prefix_range, empty_str.clone()));
6944 edits.push((suffix_range, empty_str.clone()));
6945 }
6946 } else {
6947 continue;
6948 }
6949 }
6950
6951 drop(snapshot);
6952 this.buffer.update(cx, |buffer, cx| {
6953 buffer.edit(edits, None, cx);
6954 });
6955
6956 // Adjust selections so that they end before any comment suffixes that
6957 // were inserted.
6958 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6959 let mut selections = this.selections.all::<Point>(cx);
6960 let snapshot = this.buffer.read(cx).read(cx);
6961 for selection in &mut selections {
6962 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6963 match row.cmp(&selection.end.row) {
6964 Ordering::Less => {
6965 suffixes_inserted.next();
6966 continue;
6967 }
6968 Ordering::Greater => break,
6969 Ordering::Equal => {
6970 if selection.end.column == snapshot.line_len(row) {
6971 if selection.is_empty() {
6972 selection.start.column -= suffix_len as u32;
6973 }
6974 selection.end.column -= suffix_len as u32;
6975 }
6976 break;
6977 }
6978 }
6979 }
6980 }
6981
6982 drop(snapshot);
6983 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6984
6985 let selections = this.selections.all::<Point>(cx);
6986 let selections_on_single_row = selections.windows(2).all(|selections| {
6987 selections[0].start.row == selections[1].start.row
6988 && selections[0].end.row == selections[1].end.row
6989 && selections[0].start.row == selections[0].end.row
6990 });
6991 let selections_selecting = selections
6992 .iter()
6993 .any(|selection| selection.start != selection.end);
6994 let advance_downwards = action.advance_downwards
6995 && selections_on_single_row
6996 && !selections_selecting
6997 && this.mode != EditorMode::SingleLine;
6998
6999 if advance_downwards {
7000 let snapshot = this.buffer.read(cx).snapshot(cx);
7001
7002 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7003 s.move_cursors_with(|display_snapshot, display_point, _| {
7004 let mut point = display_point.to_point(display_snapshot);
7005 point.row += 1;
7006 point = snapshot.clip_point(point, Bias::Left);
7007 let display_point = point.to_display_point(display_snapshot);
7008 let goal = SelectionGoal::HorizontalPosition(
7009 display_snapshot
7010 .x_for_display_point(display_point, &text_layout_details)
7011 .into(),
7012 );
7013 (display_point, goal)
7014 })
7015 });
7016 }
7017 });
7018 }
7019
7020 pub fn select_larger_syntax_node(
7021 &mut self,
7022 _: &SelectLargerSyntaxNode,
7023 cx: &mut ViewContext<Self>,
7024 ) {
7025 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7026 let buffer = self.buffer.read(cx).snapshot(cx);
7027 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7028
7029 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7030 let mut selected_larger_node = false;
7031 let new_selections = old_selections
7032 .iter()
7033 .map(|selection| {
7034 let old_range = selection.start..selection.end;
7035 let mut new_range = old_range.clone();
7036 while let Some(containing_range) =
7037 buffer.range_for_syntax_ancestor(new_range.clone())
7038 {
7039 new_range = containing_range;
7040 if !display_map.intersects_fold(new_range.start)
7041 && !display_map.intersects_fold(new_range.end)
7042 {
7043 break;
7044 }
7045 }
7046
7047 selected_larger_node |= new_range != old_range;
7048 Selection {
7049 id: selection.id,
7050 start: new_range.start,
7051 end: new_range.end,
7052 goal: SelectionGoal::None,
7053 reversed: selection.reversed,
7054 }
7055 })
7056 .collect::<Vec<_>>();
7057
7058 if selected_larger_node {
7059 stack.push(old_selections);
7060 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7061 s.select(new_selections);
7062 });
7063 }
7064 self.select_larger_syntax_node_stack = stack;
7065 }
7066
7067 pub fn select_smaller_syntax_node(
7068 &mut self,
7069 _: &SelectSmallerSyntaxNode,
7070 cx: &mut ViewContext<Self>,
7071 ) {
7072 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7073 if let Some(selections) = stack.pop() {
7074 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7075 s.select(selections.to_vec());
7076 });
7077 }
7078 self.select_larger_syntax_node_stack = stack;
7079 }
7080
7081 pub fn move_to_enclosing_bracket(
7082 &mut self,
7083 _: &MoveToEnclosingBracket,
7084 cx: &mut ViewContext<Self>,
7085 ) {
7086 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7087 s.move_offsets_with(|snapshot, selection| {
7088 let Some(enclosing_bracket_ranges) =
7089 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7090 else {
7091 return;
7092 };
7093
7094 let mut best_length = usize::MAX;
7095 let mut best_inside = false;
7096 let mut best_in_bracket_range = false;
7097 let mut best_destination = None;
7098 for (open, close) in enclosing_bracket_ranges {
7099 let close = close.to_inclusive();
7100 let length = close.end() - open.start;
7101 let inside = selection.start >= open.end && selection.end <= *close.start();
7102 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7103 || close.contains(&selection.head());
7104
7105 // If best is next to a bracket and current isn't, skip
7106 if !in_bracket_range && best_in_bracket_range {
7107 continue;
7108 }
7109
7110 // Prefer smaller lengths unless best is inside and current isn't
7111 if length > best_length && (best_inside || !inside) {
7112 continue;
7113 }
7114
7115 best_length = length;
7116 best_inside = inside;
7117 best_in_bracket_range = in_bracket_range;
7118 best_destination = Some(
7119 if close.contains(&selection.start) && close.contains(&selection.end) {
7120 if inside {
7121 open.end
7122 } else {
7123 open.start
7124 }
7125 } else {
7126 if inside {
7127 *close.start()
7128 } else {
7129 *close.end()
7130 }
7131 },
7132 );
7133 }
7134
7135 if let Some(destination) = best_destination {
7136 selection.collapse_to(destination, SelectionGoal::None);
7137 }
7138 })
7139 });
7140 }
7141
7142 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7143 self.end_selection(cx);
7144 self.selection_history.mode = SelectionHistoryMode::Undoing;
7145 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7146 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7147 self.select_next_state = entry.select_next_state;
7148 self.select_prev_state = entry.select_prev_state;
7149 self.add_selections_state = entry.add_selections_state;
7150 self.request_autoscroll(Autoscroll::newest(), cx);
7151 }
7152 self.selection_history.mode = SelectionHistoryMode::Normal;
7153 }
7154
7155 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7156 self.end_selection(cx);
7157 self.selection_history.mode = SelectionHistoryMode::Redoing;
7158 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7159 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7160 self.select_next_state = entry.select_next_state;
7161 self.select_prev_state = entry.select_prev_state;
7162 self.add_selections_state = entry.add_selections_state;
7163 self.request_autoscroll(Autoscroll::newest(), cx);
7164 }
7165 self.selection_history.mode = SelectionHistoryMode::Normal;
7166 }
7167
7168 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7169 self.go_to_diagnostic_impl(Direction::Next, cx)
7170 }
7171
7172 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7173 self.go_to_diagnostic_impl(Direction::Prev, cx)
7174 }
7175
7176 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7177 let buffer = self.buffer.read(cx).snapshot(cx);
7178 let selection = self.selections.newest::<usize>(cx);
7179
7180 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7181 if direction == Direction::Next {
7182 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7183 let (group_id, jump_to) = popover.activation_info();
7184 if self.activate_diagnostics(group_id, cx) {
7185 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7186 let mut new_selection = s.newest_anchor().clone();
7187 new_selection.collapse_to(jump_to, SelectionGoal::None);
7188 s.select_anchors(vec![new_selection.clone()]);
7189 });
7190 }
7191 return;
7192 }
7193 }
7194
7195 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7196 active_diagnostics
7197 .primary_range
7198 .to_offset(&buffer)
7199 .to_inclusive()
7200 });
7201 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7202 if active_primary_range.contains(&selection.head()) {
7203 *active_primary_range.end()
7204 } else {
7205 selection.head()
7206 }
7207 } else {
7208 selection.head()
7209 };
7210
7211 loop {
7212 let mut diagnostics = if direction == Direction::Prev {
7213 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7214 } else {
7215 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7216 };
7217 let group = diagnostics.find_map(|entry| {
7218 if entry.diagnostic.is_primary
7219 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7220 && !entry.range.is_empty()
7221 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7222 && !entry.range.contains(&search_start)
7223 {
7224 Some((entry.range, entry.diagnostic.group_id))
7225 } else {
7226 None
7227 }
7228 });
7229
7230 if let Some((primary_range, group_id)) = group {
7231 if self.activate_diagnostics(group_id, cx) {
7232 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7233 s.select(vec![Selection {
7234 id: selection.id,
7235 start: primary_range.start,
7236 end: primary_range.start,
7237 reversed: false,
7238 goal: SelectionGoal::None,
7239 }]);
7240 });
7241 }
7242 break;
7243 } else {
7244 // Cycle around to the start of the buffer, potentially moving back to the start of
7245 // the currently active diagnostic.
7246 active_primary_range.take();
7247 if direction == Direction::Prev {
7248 if search_start == buffer.len() {
7249 break;
7250 } else {
7251 search_start = buffer.len();
7252 }
7253 } else if search_start == 0 {
7254 break;
7255 } else {
7256 search_start = 0;
7257 }
7258 }
7259 }
7260 }
7261
7262 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7263 let snapshot = self
7264 .display_map
7265 .update(cx, |display_map, cx| display_map.snapshot(cx));
7266 let selection = self.selections.newest::<Point>(cx);
7267
7268 if !self.seek_in_direction(
7269 &snapshot,
7270 selection.head(),
7271 false,
7272 snapshot
7273 .buffer_snapshot
7274 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7275 cx,
7276 ) {
7277 let wrapped_point = Point::zero();
7278 self.seek_in_direction(
7279 &snapshot,
7280 wrapped_point,
7281 true,
7282 snapshot
7283 .buffer_snapshot
7284 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7285 cx,
7286 );
7287 }
7288 }
7289
7290 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7291 let snapshot = self
7292 .display_map
7293 .update(cx, |display_map, cx| display_map.snapshot(cx));
7294 let selection = self.selections.newest::<Point>(cx);
7295
7296 if !self.seek_in_direction(
7297 &snapshot,
7298 selection.head(),
7299 false,
7300 snapshot
7301 .buffer_snapshot
7302 .git_diff_hunks_in_range_rev(0..selection.head().row),
7303 cx,
7304 ) {
7305 let wrapped_point = snapshot.buffer_snapshot.max_point();
7306 self.seek_in_direction(
7307 &snapshot,
7308 wrapped_point,
7309 true,
7310 snapshot
7311 .buffer_snapshot
7312 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7313 cx,
7314 );
7315 }
7316 }
7317
7318 fn seek_in_direction(
7319 &mut self,
7320 snapshot: &DisplaySnapshot,
7321 initial_point: Point,
7322 is_wrapped: bool,
7323 hunks: impl Iterator<Item = DiffHunk<u32>>,
7324 cx: &mut ViewContext<Editor>,
7325 ) -> bool {
7326 let display_point = initial_point.to_display_point(snapshot);
7327 let mut hunks = hunks
7328 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7329 .filter(|hunk| {
7330 if is_wrapped {
7331 true
7332 } else {
7333 !hunk.contains_display_row(display_point.row())
7334 }
7335 })
7336 .dedup();
7337
7338 if let Some(hunk) = hunks.next() {
7339 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7340 let row = hunk.start_display_row();
7341 let point = DisplayPoint::new(row, 0);
7342 s.select_display_ranges([point..point]);
7343 });
7344
7345 true
7346 } else {
7347 false
7348 }
7349 }
7350
7351 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7352 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7353 }
7354
7355 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7356 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7357 }
7358
7359 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7360 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7361 }
7362
7363 pub fn go_to_type_definition_split(
7364 &mut self,
7365 _: &GoToTypeDefinitionSplit,
7366 cx: &mut ViewContext<Self>,
7367 ) {
7368 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7369 }
7370
7371 fn go_to_definition_of_kind(
7372 &mut self,
7373 kind: GotoDefinitionKind,
7374 split: bool,
7375 cx: &mut ViewContext<Self>,
7376 ) {
7377 let Some(workspace) = self.workspace() else {
7378 return;
7379 };
7380 let buffer = self.buffer.read(cx);
7381 let head = self.selections.newest::<usize>(cx).head();
7382 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7383 text_anchor
7384 } else {
7385 return;
7386 };
7387
7388 let project = workspace.read(cx).project().clone();
7389 let definitions = project.update(cx, |project, cx| match kind {
7390 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7391 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7392 });
7393
7394 cx.spawn(|editor, mut cx| async move {
7395 let definitions = definitions.await?;
7396 editor.update(&mut cx, |editor, cx| {
7397 editor.navigate_to_hover_links(
7398 definitions.into_iter().map(HoverLink::Text).collect(),
7399 split,
7400 cx,
7401 );
7402 })?;
7403 Ok::<(), anyhow::Error>(())
7404 })
7405 .detach_and_log_err(cx);
7406 }
7407
7408 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7409 let position = self.selections.newest_anchor().head();
7410 let Some((buffer, buffer_position)) = self
7411 .buffer
7412 .read(cx)
7413 .text_anchor_for_position(position.clone(), cx)
7414 else {
7415 return;
7416 };
7417
7418 cx.spawn(|editor, mut cx| async move {
7419 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7420 editor.update(&mut cx, |_, cx| {
7421 cx.open_url(&url);
7422 })
7423 } else {
7424 Ok(())
7425 }
7426 })
7427 .detach();
7428 }
7429
7430 pub fn navigate_to_hover_links(
7431 &mut self,
7432 mut definitions: Vec<HoverLink>,
7433 split: bool,
7434 cx: &mut ViewContext<Editor>,
7435 ) {
7436 // If there is one definition, just open it directly
7437 if definitions.len() == 1 {
7438 let definition = definitions.pop().unwrap();
7439 let target_task = match definition {
7440 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7441 HoverLink::InlayHint(lsp_location, server_id) => {
7442 self.compute_target_location(lsp_location, server_id, cx)
7443 }
7444 HoverLink::Url(url) => {
7445 cx.open_url(&url);
7446 Task::ready(Ok(None))
7447 }
7448 };
7449 cx.spawn(|editor, mut cx| async move {
7450 let target = target_task.await.context("target resolution task")?;
7451 if let Some(target) = target {
7452 editor.update(&mut cx, |editor, cx| {
7453 let Some(workspace) = editor.workspace() else {
7454 return;
7455 };
7456 let pane = workspace.read(cx).active_pane().clone();
7457
7458 let range = target.range.to_offset(target.buffer.read(cx));
7459 let range = editor.range_for_match(&range);
7460 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7461 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7462 s.select_ranges([range]);
7463 });
7464 } else {
7465 cx.window_context().defer(move |cx| {
7466 let target_editor: View<Self> =
7467 workspace.update(cx, |workspace, cx| {
7468 if split {
7469 workspace.split_project_item(target.buffer.clone(), cx)
7470 } else {
7471 workspace.open_project_item(target.buffer.clone(), cx)
7472 }
7473 });
7474 target_editor.update(cx, |target_editor, cx| {
7475 // When selecting a definition in a different buffer, disable the nav history
7476 // to avoid creating a history entry at the previous cursor location.
7477 pane.update(cx, |pane, _| pane.disable_history());
7478 target_editor.change_selections(
7479 Some(Autoscroll::fit()),
7480 cx,
7481 |s| {
7482 s.select_ranges([range]);
7483 },
7484 );
7485 pane.update(cx, |pane, _| pane.enable_history());
7486 });
7487 });
7488 }
7489 })
7490 } else {
7491 Ok(())
7492 }
7493 })
7494 .detach_and_log_err(cx);
7495 } else if !definitions.is_empty() {
7496 let replica_id = self.replica_id(cx);
7497 cx.spawn(|editor, mut cx| async move {
7498 let (title, location_tasks, workspace) = editor
7499 .update(&mut cx, |editor, cx| {
7500 let title = definitions
7501 .iter()
7502 .find_map(|definition| match definition {
7503 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7504 let buffer = origin.buffer.read(cx);
7505 format!(
7506 "Definitions for {}",
7507 buffer
7508 .text_for_range(origin.range.clone())
7509 .collect::<String>()
7510 )
7511 }),
7512 HoverLink::InlayHint(_, _) => None,
7513 HoverLink::Url(_) => None,
7514 })
7515 .unwrap_or("Definitions".to_string());
7516 let location_tasks = definitions
7517 .into_iter()
7518 .map(|definition| match definition {
7519 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7520 HoverLink::InlayHint(lsp_location, server_id) => {
7521 editor.compute_target_location(lsp_location, server_id, cx)
7522 }
7523 HoverLink::Url(_) => Task::ready(Ok(None)),
7524 })
7525 .collect::<Vec<_>>();
7526 (title, location_tasks, editor.workspace().clone())
7527 })
7528 .context("location tasks preparation")?;
7529
7530 let locations = futures::future::join_all(location_tasks)
7531 .await
7532 .into_iter()
7533 .filter_map(|location| location.transpose())
7534 .collect::<Result<_>>()
7535 .context("location tasks")?;
7536
7537 let Some(workspace) = workspace else {
7538 return Ok(());
7539 };
7540 workspace
7541 .update(&mut cx, |workspace, cx| {
7542 Self::open_locations_in_multibuffer(
7543 workspace, locations, replica_id, title, split, cx,
7544 )
7545 })
7546 .ok();
7547
7548 anyhow::Ok(())
7549 })
7550 .detach_and_log_err(cx);
7551 }
7552 }
7553
7554 fn compute_target_location(
7555 &self,
7556 lsp_location: lsp::Location,
7557 server_id: LanguageServerId,
7558 cx: &mut ViewContext<Editor>,
7559 ) -> Task<anyhow::Result<Option<Location>>> {
7560 let Some(project) = self.project.clone() else {
7561 return Task::Ready(Some(Ok(None)));
7562 };
7563
7564 cx.spawn(move |editor, mut cx| async move {
7565 let location_task = editor.update(&mut cx, |editor, cx| {
7566 project.update(cx, |project, cx| {
7567 let language_server_name =
7568 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7569 project
7570 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7571 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7572 });
7573 language_server_name.map(|language_server_name| {
7574 project.open_local_buffer_via_lsp(
7575 lsp_location.uri.clone(),
7576 server_id,
7577 language_server_name,
7578 cx,
7579 )
7580 })
7581 })
7582 })?;
7583 let location = match location_task {
7584 Some(task) => Some({
7585 let target_buffer_handle = task.await.context("open local buffer")?;
7586 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7587 let target_start = target_buffer
7588 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7589 let target_end = target_buffer
7590 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7591 target_buffer.anchor_after(target_start)
7592 ..target_buffer.anchor_before(target_end)
7593 })?;
7594 Location {
7595 buffer: target_buffer_handle,
7596 range,
7597 }
7598 }),
7599 None => None,
7600 };
7601 Ok(location)
7602 })
7603 }
7604
7605 pub fn find_all_references(
7606 &mut self,
7607 _: &FindAllReferences,
7608 cx: &mut ViewContext<Self>,
7609 ) -> Option<Task<Result<()>>> {
7610 let buffer = self.buffer.read(cx);
7611 let head = self.selections.newest::<usize>(cx).head();
7612 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7613 let replica_id = self.replica_id(cx);
7614
7615 let workspace = self.workspace()?;
7616 let project = workspace.read(cx).project().clone();
7617 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7618 Some(cx.spawn(|_, mut cx| async move {
7619 let locations = references.await?;
7620 if locations.is_empty() {
7621 return Ok(());
7622 }
7623
7624 workspace.update(&mut cx, |workspace, cx| {
7625 let title = locations
7626 .first()
7627 .as_ref()
7628 .map(|location| {
7629 let buffer = location.buffer.read(cx);
7630 format!(
7631 "References to `{}`",
7632 buffer
7633 .text_for_range(location.range.clone())
7634 .collect::<String>()
7635 )
7636 })
7637 .unwrap();
7638 Self::open_locations_in_multibuffer(
7639 workspace, locations, replica_id, title, false, cx,
7640 );
7641 })?;
7642
7643 Ok(())
7644 }))
7645 }
7646
7647 /// Opens a multibuffer with the given project locations in it
7648 pub fn open_locations_in_multibuffer(
7649 workspace: &mut Workspace,
7650 mut locations: Vec<Location>,
7651 replica_id: ReplicaId,
7652 title: String,
7653 split: bool,
7654 cx: &mut ViewContext<Workspace>,
7655 ) {
7656 // If there are multiple definitions, open them in a multibuffer
7657 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7658 let mut locations = locations.into_iter().peekable();
7659 let mut ranges_to_highlight = Vec::new();
7660 let capability = workspace.project().read(cx).capability();
7661
7662 let excerpt_buffer = cx.new_model(|cx| {
7663 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7664 while let Some(location) = locations.next() {
7665 let buffer = location.buffer.read(cx);
7666 let mut ranges_for_buffer = Vec::new();
7667 let range = location.range.to_offset(buffer);
7668 ranges_for_buffer.push(range.clone());
7669
7670 while let Some(next_location) = locations.peek() {
7671 if next_location.buffer == location.buffer {
7672 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7673 locations.next();
7674 } else {
7675 break;
7676 }
7677 }
7678
7679 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7680 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7681 location.buffer.clone(),
7682 ranges_for_buffer,
7683 1,
7684 cx,
7685 ))
7686 }
7687
7688 multibuffer.with_title(title)
7689 });
7690
7691 let editor = cx.new_view(|cx| {
7692 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7693 });
7694 editor.update(cx, |editor, cx| {
7695 editor.highlight_background::<Self>(
7696 ranges_to_highlight,
7697 |theme| theme.editor_highlighted_line_background,
7698 cx,
7699 );
7700 });
7701 if split {
7702 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7703 } else {
7704 workspace.add_item(Box::new(editor), cx);
7705 }
7706 }
7707
7708 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7709 use language::ToOffset as _;
7710
7711 let project = self.project.clone()?;
7712 let selection = self.selections.newest_anchor().clone();
7713 let (cursor_buffer, cursor_buffer_position) = self
7714 .buffer
7715 .read(cx)
7716 .text_anchor_for_position(selection.head(), cx)?;
7717 let (tail_buffer, _) = self
7718 .buffer
7719 .read(cx)
7720 .text_anchor_for_position(selection.tail(), cx)?;
7721 if tail_buffer != cursor_buffer {
7722 return None;
7723 }
7724
7725 let snapshot = cursor_buffer.read(cx).snapshot();
7726 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7727 let prepare_rename = project.update(cx, |project, cx| {
7728 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
7729 });
7730 drop(snapshot);
7731
7732 Some(cx.spawn(|this, mut cx| async move {
7733 let rename_range = if let Some(range) = prepare_rename.await? {
7734 Some(range)
7735 } else {
7736 this.update(&mut cx, |this, cx| {
7737 let buffer = this.buffer.read(cx).snapshot(cx);
7738 let mut buffer_highlights = this
7739 .document_highlights_for_position(selection.head(), &buffer)
7740 .filter(|highlight| {
7741 highlight.start.excerpt_id == selection.head().excerpt_id
7742 && highlight.end.excerpt_id == selection.head().excerpt_id
7743 });
7744 buffer_highlights
7745 .next()
7746 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7747 })?
7748 };
7749 if let Some(rename_range) = rename_range {
7750 this.update(&mut cx, |this, cx| {
7751 let snapshot = cursor_buffer.read(cx).snapshot();
7752 let rename_buffer_range = rename_range.to_offset(&snapshot);
7753 let cursor_offset_in_rename_range =
7754 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7755
7756 this.take_rename(false, cx);
7757 let buffer = this.buffer.read(cx).read(cx);
7758 let cursor_offset = selection.head().to_offset(&buffer);
7759 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7760 let rename_end = rename_start + rename_buffer_range.len();
7761 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7762 let mut old_highlight_id = None;
7763 let old_name: Arc<str> = buffer
7764 .chunks(rename_start..rename_end, true)
7765 .map(|chunk| {
7766 if old_highlight_id.is_none() {
7767 old_highlight_id = chunk.syntax_highlight_id;
7768 }
7769 chunk.text
7770 })
7771 .collect::<String>()
7772 .into();
7773
7774 drop(buffer);
7775
7776 // Position the selection in the rename editor so that it matches the current selection.
7777 this.show_local_selections = false;
7778 let rename_editor = cx.new_view(|cx| {
7779 let mut editor = Editor::single_line(cx);
7780 editor.buffer.update(cx, |buffer, cx| {
7781 buffer.edit([(0..0, old_name.clone())], None, cx)
7782 });
7783 editor.select_all(&SelectAll, cx);
7784 editor
7785 });
7786
7787 let ranges = this
7788 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7789 .into_iter()
7790 .flat_map(|(_, ranges)| ranges.into_iter())
7791 .chain(
7792 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7793 .into_iter()
7794 .flat_map(|(_, ranges)| ranges.into_iter()),
7795 )
7796 .collect();
7797
7798 this.highlight_text::<Rename>(
7799 ranges,
7800 HighlightStyle {
7801 fade_out: Some(0.6),
7802 ..Default::default()
7803 },
7804 cx,
7805 );
7806 let rename_focus_handle = rename_editor.focus_handle(cx);
7807 cx.focus(&rename_focus_handle);
7808 let block_id = this.insert_blocks(
7809 [BlockProperties {
7810 style: BlockStyle::Flex,
7811 position: range.start.clone(),
7812 height: 1,
7813 render: Arc::new({
7814 let rename_editor = rename_editor.clone();
7815 move |cx: &mut BlockContext| {
7816 let mut text_style = cx.editor_style.text.clone();
7817 if let Some(highlight_style) = old_highlight_id
7818 .and_then(|h| h.style(&cx.editor_style.syntax))
7819 {
7820 text_style = text_style.highlight(highlight_style);
7821 }
7822 div()
7823 .pl(cx.anchor_x)
7824 .child(EditorElement::new(
7825 &rename_editor,
7826 EditorStyle {
7827 background: cx.theme().system().transparent,
7828 local_player: cx.editor_style.local_player,
7829 text: text_style,
7830 scrollbar_width: cx.editor_style.scrollbar_width,
7831 syntax: cx.editor_style.syntax.clone(),
7832 status: cx.editor_style.status.clone(),
7833 inlays_style: HighlightStyle {
7834 color: Some(cx.theme().status().hint),
7835 font_weight: Some(FontWeight::BOLD),
7836 ..HighlightStyle::default()
7837 },
7838 suggestions_style: HighlightStyle {
7839 color: Some(cx.theme().status().predictive),
7840 ..HighlightStyle::default()
7841 },
7842 },
7843 ))
7844 .into_any_element()
7845 }
7846 }),
7847 disposition: BlockDisposition::Below,
7848 }],
7849 Some(Autoscroll::fit()),
7850 cx,
7851 )[0];
7852 this.pending_rename = Some(RenameState {
7853 range,
7854 old_name,
7855 editor: rename_editor,
7856 block_id,
7857 });
7858 })?;
7859 }
7860
7861 Ok(())
7862 }))
7863 }
7864
7865 pub fn confirm_rename(
7866 &mut self,
7867 _: &ConfirmRename,
7868 cx: &mut ViewContext<Self>,
7869 ) -> Option<Task<Result<()>>> {
7870 let rename = self.take_rename(false, cx)?;
7871 let workspace = self.workspace()?;
7872 let (start_buffer, start) = self
7873 .buffer
7874 .read(cx)
7875 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7876 let (end_buffer, end) = self
7877 .buffer
7878 .read(cx)
7879 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7880 if start_buffer != end_buffer {
7881 return None;
7882 }
7883
7884 let buffer = start_buffer;
7885 let range = start..end;
7886 let old_name = rename.old_name;
7887 let new_name = rename.editor.read(cx).text(cx);
7888
7889 let rename = workspace
7890 .read(cx)
7891 .project()
7892 .clone()
7893 .update(cx, |project, cx| {
7894 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7895 });
7896 let workspace = workspace.downgrade();
7897
7898 Some(cx.spawn(|editor, mut cx| async move {
7899 let project_transaction = rename.await?;
7900 Self::open_project_transaction(
7901 &editor,
7902 workspace,
7903 project_transaction,
7904 format!("Rename: {} → {}", old_name, new_name),
7905 cx.clone(),
7906 )
7907 .await?;
7908
7909 editor.update(&mut cx, |editor, cx| {
7910 editor.refresh_document_highlights(cx);
7911 })?;
7912 Ok(())
7913 }))
7914 }
7915
7916 fn take_rename(
7917 &mut self,
7918 moving_cursor: bool,
7919 cx: &mut ViewContext<Self>,
7920 ) -> Option<RenameState> {
7921 let rename = self.pending_rename.take()?;
7922 if rename.editor.focus_handle(cx).is_focused(cx) {
7923 cx.focus(&self.focus_handle);
7924 }
7925
7926 self.remove_blocks(
7927 [rename.block_id].into_iter().collect(),
7928 Some(Autoscroll::fit()),
7929 cx,
7930 );
7931 self.clear_highlights::<Rename>(cx);
7932 self.show_local_selections = true;
7933
7934 if moving_cursor {
7935 let rename_editor = rename.editor.read(cx);
7936 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7937
7938 // Update the selection to match the position of the selection inside
7939 // the rename editor.
7940 let snapshot = self.buffer.read(cx).read(cx);
7941 let rename_range = rename.range.to_offset(&snapshot);
7942 let cursor_in_editor = snapshot
7943 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7944 .min(rename_range.end);
7945 drop(snapshot);
7946
7947 self.change_selections(None, cx, |s| {
7948 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7949 });
7950 } else {
7951 self.refresh_document_highlights(cx);
7952 }
7953
7954 Some(rename)
7955 }
7956
7957 pub fn pending_rename(&self) -> Option<&RenameState> {
7958 self.pending_rename.as_ref()
7959 }
7960
7961 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7962 let project = match &self.project {
7963 Some(project) => project.clone(),
7964 None => return None,
7965 };
7966
7967 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7968 }
7969
7970 fn perform_format(
7971 &mut self,
7972 project: Model<Project>,
7973 trigger: FormatTrigger,
7974 cx: &mut ViewContext<Self>,
7975 ) -> Task<Result<()>> {
7976 let buffer = self.buffer().clone();
7977 let buffers = buffer.read(cx).all_buffers();
7978
7979 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
7980 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
7981
7982 cx.spawn(|_, mut cx| async move {
7983 let transaction = futures::select_biased! {
7984 _ = timeout => {
7985 log::warn!("timed out waiting for formatting");
7986 None
7987 }
7988 transaction = format.log_err().fuse() => transaction,
7989 };
7990
7991 buffer
7992 .update(&mut cx, |buffer, cx| {
7993 if let Some(transaction) = transaction {
7994 if !buffer.is_singleton() {
7995 buffer.push_transaction(&transaction.0, cx);
7996 }
7997 }
7998
7999 cx.notify();
8000 })
8001 .ok();
8002
8003 Ok(())
8004 })
8005 }
8006
8007 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8008 if let Some(project) = self.project.clone() {
8009 self.buffer.update(cx, |multi_buffer, cx| {
8010 project.update(cx, |project, cx| {
8011 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8012 });
8013 })
8014 }
8015 }
8016
8017 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8018 cx.show_character_palette();
8019 }
8020
8021 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8022 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8023 let buffer = self.buffer.read(cx).snapshot(cx);
8024 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8025 let is_valid = buffer
8026 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8027 .any(|entry| {
8028 entry.diagnostic.is_primary
8029 && !entry.range.is_empty()
8030 && entry.range.start == primary_range_start
8031 && entry.diagnostic.message == active_diagnostics.primary_message
8032 });
8033
8034 if is_valid != active_diagnostics.is_valid {
8035 active_diagnostics.is_valid = is_valid;
8036 let mut new_styles = HashMap::default();
8037 for (block_id, diagnostic) in &active_diagnostics.blocks {
8038 new_styles.insert(
8039 *block_id,
8040 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8041 );
8042 }
8043 self.display_map
8044 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8045 }
8046 }
8047 }
8048
8049 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8050 self.dismiss_diagnostics(cx);
8051 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8052 let buffer = self.buffer.read(cx).snapshot(cx);
8053
8054 let mut primary_range = None;
8055 let mut primary_message = None;
8056 let mut group_end = Point::zero();
8057 let diagnostic_group = buffer
8058 .diagnostic_group::<Point>(group_id)
8059 .map(|entry| {
8060 if entry.range.end > group_end {
8061 group_end = entry.range.end;
8062 }
8063 if entry.diagnostic.is_primary {
8064 primary_range = Some(entry.range.clone());
8065 primary_message = Some(entry.diagnostic.message.clone());
8066 }
8067 entry
8068 })
8069 .collect::<Vec<_>>();
8070 let primary_range = primary_range?;
8071 let primary_message = primary_message?;
8072 let primary_range =
8073 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8074
8075 let blocks = display_map
8076 .insert_blocks(
8077 diagnostic_group.iter().map(|entry| {
8078 let diagnostic = entry.diagnostic.clone();
8079 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8080 BlockProperties {
8081 style: BlockStyle::Fixed,
8082 position: buffer.anchor_after(entry.range.start),
8083 height: message_height,
8084 render: diagnostic_block_renderer(diagnostic, true),
8085 disposition: BlockDisposition::Below,
8086 }
8087 }),
8088 cx,
8089 )
8090 .into_iter()
8091 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8092 .collect();
8093
8094 Some(ActiveDiagnosticGroup {
8095 primary_range,
8096 primary_message,
8097 blocks,
8098 is_valid: true,
8099 })
8100 });
8101 self.active_diagnostics.is_some()
8102 }
8103
8104 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8105 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8106 self.display_map.update(cx, |display_map, cx| {
8107 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8108 });
8109 cx.notify();
8110 }
8111 }
8112
8113 pub fn set_selections_from_remote(
8114 &mut self,
8115 selections: Vec<Selection<Anchor>>,
8116 pending_selection: Option<Selection<Anchor>>,
8117 cx: &mut ViewContext<Self>,
8118 ) {
8119 let old_cursor_position = self.selections.newest_anchor().head();
8120 self.selections.change_with(cx, |s| {
8121 s.select_anchors(selections);
8122 if let Some(pending_selection) = pending_selection {
8123 s.set_pending(pending_selection, SelectMode::Character);
8124 } else {
8125 s.clear_pending();
8126 }
8127 });
8128 self.selections_did_change(false, &old_cursor_position, cx);
8129 }
8130
8131 fn push_to_selection_history(&mut self) {
8132 self.selection_history.push(SelectionHistoryEntry {
8133 selections: self.selections.disjoint_anchors(),
8134 select_next_state: self.select_next_state.clone(),
8135 select_prev_state: self.select_prev_state.clone(),
8136 add_selections_state: self.add_selections_state.clone(),
8137 });
8138 }
8139
8140 pub fn transact(
8141 &mut self,
8142 cx: &mut ViewContext<Self>,
8143 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8144 ) -> Option<TransactionId> {
8145 self.start_transaction_at(Instant::now(), cx);
8146 update(self, cx);
8147 self.end_transaction_at(Instant::now(), cx)
8148 }
8149
8150 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8151 self.end_selection(cx);
8152 if let Some(tx_id) = self
8153 .buffer
8154 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8155 {
8156 self.selection_history
8157 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8158 }
8159 }
8160
8161 fn end_transaction_at(
8162 &mut self,
8163 now: Instant,
8164 cx: &mut ViewContext<Self>,
8165 ) -> Option<TransactionId> {
8166 if let Some(tx_id) = self
8167 .buffer
8168 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8169 {
8170 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8171 *end_selections = Some(self.selections.disjoint_anchors());
8172 } else {
8173 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8174 }
8175
8176 cx.emit(EditorEvent::Edited);
8177 Some(tx_id)
8178 } else {
8179 None
8180 }
8181 }
8182
8183 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8184 let mut fold_ranges = Vec::new();
8185
8186 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8187
8188 let selections = self.selections.all_adjusted(cx);
8189 for selection in selections {
8190 let range = selection.range().sorted();
8191 let buffer_start_row = range.start.row;
8192
8193 for row in (0..=range.end.row).rev() {
8194 let fold_range = display_map.foldable_range(row);
8195
8196 if let Some(fold_range) = fold_range {
8197 if fold_range.end.row >= buffer_start_row {
8198 fold_ranges.push(fold_range);
8199 if row <= range.start.row {
8200 break;
8201 }
8202 }
8203 }
8204 }
8205 }
8206
8207 self.fold_ranges(fold_ranges, true, cx);
8208 }
8209
8210 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8211 let buffer_row = fold_at.buffer_row;
8212 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8213
8214 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8215 let autoscroll = self
8216 .selections
8217 .all::<Point>(cx)
8218 .iter()
8219 .any(|selection| fold_range.overlaps(&selection.range()));
8220
8221 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8222 }
8223 }
8224
8225 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8226 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8227 let buffer = &display_map.buffer_snapshot;
8228 let selections = self.selections.all::<Point>(cx);
8229 let ranges = selections
8230 .iter()
8231 .map(|s| {
8232 let range = s.display_range(&display_map).sorted();
8233 let mut start = range.start.to_point(&display_map);
8234 let mut end = range.end.to_point(&display_map);
8235 start.column = 0;
8236 end.column = buffer.line_len(end.row);
8237 start..end
8238 })
8239 .collect::<Vec<_>>();
8240
8241 self.unfold_ranges(ranges, true, true, cx);
8242 }
8243
8244 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8245 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8246
8247 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8248 ..Point::new(
8249 unfold_at.buffer_row,
8250 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8251 );
8252
8253 let autoscroll = self
8254 .selections
8255 .all::<Point>(cx)
8256 .iter()
8257 .any(|selection| selection.range().overlaps(&intersection_range));
8258
8259 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8260 }
8261
8262 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8263 let selections = self.selections.all::<Point>(cx);
8264 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8265 let line_mode = self.selections.line_mode;
8266 let ranges = selections.into_iter().map(|s| {
8267 if line_mode {
8268 let start = Point::new(s.start.row, 0);
8269 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8270 start..end
8271 } else {
8272 s.start..s.end
8273 }
8274 });
8275 self.fold_ranges(ranges, true, cx);
8276 }
8277
8278 pub fn fold_ranges<T: ToOffset + Clone>(
8279 &mut self,
8280 ranges: impl IntoIterator<Item = Range<T>>,
8281 auto_scroll: bool,
8282 cx: &mut ViewContext<Self>,
8283 ) {
8284 let mut ranges = ranges.into_iter().peekable();
8285 if ranges.peek().is_some() {
8286 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8287
8288 if auto_scroll {
8289 self.request_autoscroll(Autoscroll::fit(), cx);
8290 }
8291
8292 cx.notify();
8293 }
8294 }
8295
8296 pub fn unfold_ranges<T: ToOffset + Clone>(
8297 &mut self,
8298 ranges: impl IntoIterator<Item = Range<T>>,
8299 inclusive: bool,
8300 auto_scroll: bool,
8301 cx: &mut ViewContext<Self>,
8302 ) {
8303 let mut ranges = ranges.into_iter().peekable();
8304 if ranges.peek().is_some() {
8305 self.display_map
8306 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8307 if auto_scroll {
8308 self.request_autoscroll(Autoscroll::fit(), cx);
8309 }
8310
8311 cx.notify();
8312 }
8313 }
8314
8315 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8316 if hovered != self.gutter_hovered {
8317 self.gutter_hovered = hovered;
8318 cx.notify();
8319 }
8320 }
8321
8322 pub fn insert_blocks(
8323 &mut self,
8324 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8325 autoscroll: Option<Autoscroll>,
8326 cx: &mut ViewContext<Self>,
8327 ) -> Vec<BlockId> {
8328 let blocks = self
8329 .display_map
8330 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8331 if let Some(autoscroll) = autoscroll {
8332 self.request_autoscroll(autoscroll, cx);
8333 }
8334 blocks
8335 }
8336
8337 pub fn replace_blocks(
8338 &mut self,
8339 blocks: HashMap<BlockId, RenderBlock>,
8340 autoscroll: Option<Autoscroll>,
8341 cx: &mut ViewContext<Self>,
8342 ) {
8343 self.display_map
8344 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8345 if let Some(autoscroll) = autoscroll {
8346 self.request_autoscroll(autoscroll, cx);
8347 }
8348 }
8349
8350 pub fn remove_blocks(
8351 &mut self,
8352 block_ids: HashSet<BlockId>,
8353 autoscroll: Option<Autoscroll>,
8354 cx: &mut ViewContext<Self>,
8355 ) {
8356 self.display_map.update(cx, |display_map, cx| {
8357 display_map.remove_blocks(block_ids, cx)
8358 });
8359 if let Some(autoscroll) = autoscroll {
8360 self.request_autoscroll(autoscroll, cx);
8361 }
8362 }
8363
8364 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8365 self.display_map
8366 .update(cx, |map, cx| map.snapshot(cx))
8367 .longest_row()
8368 }
8369
8370 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8371 self.display_map
8372 .update(cx, |map, cx| map.snapshot(cx))
8373 .max_point()
8374 }
8375
8376 pub fn text(&self, cx: &AppContext) -> String {
8377 self.buffer.read(cx).read(cx).text()
8378 }
8379
8380 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8381 let text = self.text(cx);
8382 let text = text.trim();
8383
8384 if text.is_empty() {
8385 return None;
8386 }
8387
8388 Some(text.to_string())
8389 }
8390
8391 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8392 self.transact(cx, |this, cx| {
8393 this.buffer
8394 .read(cx)
8395 .as_singleton()
8396 .expect("you can only call set_text on editors for singleton buffers")
8397 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8398 });
8399 }
8400
8401 pub fn display_text(&self, cx: &mut AppContext) -> String {
8402 self.display_map
8403 .update(cx, |map, cx| map.snapshot(cx))
8404 .text()
8405 }
8406
8407 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8408 let mut wrap_guides = smallvec::smallvec![];
8409
8410 if self.show_wrap_guides == Some(false) {
8411 return wrap_guides;
8412 }
8413
8414 let settings = self.buffer.read(cx).settings_at(0, cx);
8415 if settings.show_wrap_guides {
8416 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8417 wrap_guides.push((soft_wrap as usize, true));
8418 }
8419 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8420 }
8421
8422 wrap_guides
8423 }
8424
8425 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8426 let settings = self.buffer.read(cx).settings_at(0, cx);
8427 let mode = self
8428 .soft_wrap_mode_override
8429 .unwrap_or_else(|| settings.soft_wrap);
8430 match mode {
8431 language_settings::SoftWrap::None => SoftWrap::None,
8432 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8433 language_settings::SoftWrap::PreferredLineLength => {
8434 SoftWrap::Column(settings.preferred_line_length)
8435 }
8436 }
8437 }
8438
8439 pub fn set_soft_wrap_mode(
8440 &mut self,
8441 mode: language_settings::SoftWrap,
8442 cx: &mut ViewContext<Self>,
8443 ) {
8444 self.soft_wrap_mode_override = Some(mode);
8445 cx.notify();
8446 }
8447
8448 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8449 let rem_size = cx.rem_size();
8450 self.display_map.update(cx, |map, cx| {
8451 map.set_font(
8452 style.text.font(),
8453 style.text.font_size.to_pixels(rem_size),
8454 cx,
8455 )
8456 });
8457 self.style = Some(style);
8458 }
8459
8460 #[cfg(any(test, feature = "test-support"))]
8461 pub fn style(&self) -> Option<&EditorStyle> {
8462 self.style.as_ref()
8463 }
8464
8465 // Called by the element. This method is not designed to be called outside of the editor
8466 // element's layout code because it does not notify when rewrapping is computed synchronously.
8467 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8468 self.display_map
8469 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8470 }
8471
8472 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8473 if self.soft_wrap_mode_override.is_some() {
8474 self.soft_wrap_mode_override.take();
8475 } else {
8476 let soft_wrap = match self.soft_wrap_mode(cx) {
8477 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8478 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8479 };
8480 self.soft_wrap_mode_override = Some(soft_wrap);
8481 }
8482 cx.notify();
8483 }
8484
8485 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8486 self.show_gutter = show_gutter;
8487 cx.notify();
8488 }
8489
8490 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8491 self.show_wrap_guides = Some(show_gutter);
8492 cx.notify();
8493 }
8494
8495 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8496 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8497 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8498 cx.reveal_path(&file.abs_path(cx));
8499 }
8500 }
8501 }
8502
8503 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8504 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8505 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8506 if let Some(path) = file.abs_path(cx).to_str() {
8507 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8508 }
8509 }
8510 }
8511 }
8512
8513 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8514 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8515 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8516 if let Some(path) = file.path().to_str() {
8517 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8518 }
8519 }
8520 }
8521 }
8522
8523 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8524 use git::permalink::{build_permalink, BuildPermalinkParams};
8525
8526 let project = self.project.clone().ok_or_else(|| anyhow!("no project"))?;
8527 let project = project.read(cx);
8528
8529 let worktree = project
8530 .visible_worktrees(cx)
8531 .next()
8532 .ok_or_else(|| anyhow!("no worktree"))?;
8533
8534 let mut cwd = worktree.read(cx).abs_path().to_path_buf();
8535 cwd.push(".git");
8536
8537 const REMOTE_NAME: &'static str = "origin";
8538 let repo = project
8539 .fs()
8540 .open_repo(&cwd)
8541 .ok_or_else(|| anyhow!("no Git repo"))?;
8542 let origin_url = repo
8543 .lock()
8544 .remote_url(REMOTE_NAME)
8545 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8546 let sha = repo
8547 .lock()
8548 .head_sha()
8549 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8550
8551 let path = maybe!({
8552 let buffer = self.buffer().read(cx).as_singleton()?;
8553 let file = buffer.read(cx).file().and_then(|f| f.as_local())?;
8554 file.path().to_str().map(|path| path.to_string())
8555 })
8556 .ok_or_else(|| anyhow!("failed to determine file path"))?;
8557
8558 let selections = self.selections.all::<Point>(cx);
8559 let selection = selections.iter().peekable().next();
8560
8561 build_permalink(BuildPermalinkParams {
8562 remote_url: &origin_url,
8563 sha: &sha,
8564 path: &path,
8565 selection: selection.map(|selection| selection.range()),
8566 })
8567 }
8568
8569 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8570 let permalink = self.get_permalink_to_line(cx);
8571
8572 match permalink {
8573 Ok(permalink) => {
8574 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8575 }
8576 Err(err) => {
8577 let message = format!("Failed to copy permalink: {err}");
8578
8579 Err::<(), anyhow::Error>(err).log_err();
8580
8581 if let Some(workspace) = self.workspace() {
8582 workspace.update(cx, |workspace, cx| {
8583 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8584 })
8585 }
8586 }
8587 }
8588 }
8589
8590 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8591 let permalink = self.get_permalink_to_line(cx);
8592
8593 match permalink {
8594 Ok(permalink) => {
8595 cx.open_url(&permalink.to_string());
8596 }
8597 Err(err) => {
8598 let message = format!("Failed to open permalink: {err}");
8599
8600 Err::<(), anyhow::Error>(err).log_err();
8601
8602 if let Some(workspace) = self.workspace() {
8603 workspace.update(cx, |workspace, cx| {
8604 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8605 })
8606 }
8607 }
8608 }
8609 }
8610
8611 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8612 self.highlighted_rows = rows;
8613 }
8614
8615 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8616 self.highlighted_rows.clone()
8617 }
8618
8619 pub fn highlight_background<T: 'static>(
8620 &mut self,
8621 ranges: Vec<Range<Anchor>>,
8622 color_fetcher: fn(&ThemeColors) -> Hsla,
8623 cx: &mut ViewContext<Self>,
8624 ) {
8625 let snapshot = self.snapshot(cx);
8626 // this is to try and catch a panic sooner
8627 for range in &ranges {
8628 snapshot
8629 .buffer_snapshot
8630 .summary_for_anchor::<usize>(&range.start);
8631 snapshot
8632 .buffer_snapshot
8633 .summary_for_anchor::<usize>(&range.end);
8634 }
8635
8636 self.background_highlights
8637 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8638 cx.notify();
8639 }
8640
8641 pub(crate) fn highlight_inlay_background<T: 'static>(
8642 &mut self,
8643 ranges: Vec<InlayHighlight>,
8644 color_fetcher: fn(&ThemeColors) -> Hsla,
8645 cx: &mut ViewContext<Self>,
8646 ) {
8647 // TODO: no actual highlights happen for inlays currently, find a way to do that
8648 self.inlay_background_highlights
8649 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8650 cx.notify();
8651 }
8652
8653 pub fn clear_background_highlights<T: 'static>(
8654 &mut self,
8655 cx: &mut ViewContext<Self>,
8656 ) -> Option<BackgroundHighlight> {
8657 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8658 let inlay_highlights = self
8659 .inlay_background_highlights
8660 .remove(&Some(TypeId::of::<T>()));
8661 if text_highlights.is_some() || inlay_highlights.is_some() {
8662 cx.notify();
8663 }
8664 text_highlights
8665 }
8666
8667 #[cfg(feature = "test-support")]
8668 pub fn all_text_background_highlights(
8669 &mut self,
8670 cx: &mut ViewContext<Self>,
8671 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8672 let snapshot = self.snapshot(cx);
8673 let buffer = &snapshot.buffer_snapshot;
8674 let start = buffer.anchor_before(0);
8675 let end = buffer.anchor_after(buffer.len());
8676 let theme = cx.theme().colors();
8677 self.background_highlights_in_range(start..end, &snapshot, theme)
8678 }
8679
8680 fn document_highlights_for_position<'a>(
8681 &'a self,
8682 position: Anchor,
8683 buffer: &'a MultiBufferSnapshot,
8684 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8685 let read_highlights = self
8686 .background_highlights
8687 .get(&TypeId::of::<DocumentHighlightRead>())
8688 .map(|h| &h.1);
8689 let write_highlights = self
8690 .background_highlights
8691 .get(&TypeId::of::<DocumentHighlightWrite>())
8692 .map(|h| &h.1);
8693 let left_position = position.bias_left(buffer);
8694 let right_position = position.bias_right(buffer);
8695 read_highlights
8696 .into_iter()
8697 .chain(write_highlights)
8698 .flat_map(move |ranges| {
8699 let start_ix = match ranges.binary_search_by(|probe| {
8700 let cmp = probe.end.cmp(&left_position, buffer);
8701 if cmp.is_ge() {
8702 Ordering::Greater
8703 } else {
8704 Ordering::Less
8705 }
8706 }) {
8707 Ok(i) | Err(i) => i,
8708 };
8709
8710 let right_position = right_position.clone();
8711 ranges[start_ix..]
8712 .iter()
8713 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8714 })
8715 }
8716
8717 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8718 self.background_highlights
8719 .get(&TypeId::of::<T>())
8720 .map_or(false, |(_, highlights)| !highlights.is_empty())
8721 }
8722
8723 pub fn background_highlights_in_range(
8724 &self,
8725 search_range: Range<Anchor>,
8726 display_snapshot: &DisplaySnapshot,
8727 theme: &ThemeColors,
8728 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8729 let mut results = Vec::new();
8730 for (color_fetcher, ranges) in self.background_highlights.values() {
8731 let color = color_fetcher(theme);
8732 let start_ix = match ranges.binary_search_by(|probe| {
8733 let cmp = probe
8734 .end
8735 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8736 if cmp.is_gt() {
8737 Ordering::Greater
8738 } else {
8739 Ordering::Less
8740 }
8741 }) {
8742 Ok(i) | Err(i) => i,
8743 };
8744 for range in &ranges[start_ix..] {
8745 if range
8746 .start
8747 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8748 .is_ge()
8749 {
8750 break;
8751 }
8752
8753 let start = range.start.to_display_point(&display_snapshot);
8754 let end = range.end.to_display_point(&display_snapshot);
8755 results.push((start..end, color))
8756 }
8757 }
8758 results
8759 }
8760
8761 pub fn background_highlight_row_ranges<T: 'static>(
8762 &self,
8763 search_range: Range<Anchor>,
8764 display_snapshot: &DisplaySnapshot,
8765 count: usize,
8766 ) -> Vec<RangeInclusive<DisplayPoint>> {
8767 let mut results = Vec::new();
8768 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8769 return vec![];
8770 };
8771
8772 let start_ix = match ranges.binary_search_by(|probe| {
8773 let cmp = probe
8774 .end
8775 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8776 if cmp.is_gt() {
8777 Ordering::Greater
8778 } else {
8779 Ordering::Less
8780 }
8781 }) {
8782 Ok(i) | Err(i) => i,
8783 };
8784 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8785 if let (Some(start_display), Some(end_display)) = (start, end) {
8786 results.push(
8787 start_display.to_display_point(display_snapshot)
8788 ..=end_display.to_display_point(display_snapshot),
8789 );
8790 }
8791 };
8792 let mut start_row: Option<Point> = None;
8793 let mut end_row: Option<Point> = None;
8794 if ranges.len() > count {
8795 return Vec::new();
8796 }
8797 for range in &ranges[start_ix..] {
8798 if range
8799 .start
8800 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8801 .is_ge()
8802 {
8803 break;
8804 }
8805 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8806 if let Some(current_row) = &end_row {
8807 if end.row == current_row.row {
8808 continue;
8809 }
8810 }
8811 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8812 if start_row.is_none() {
8813 assert_eq!(end_row, None);
8814 start_row = Some(start);
8815 end_row = Some(end);
8816 continue;
8817 }
8818 if let Some(current_end) = end_row.as_mut() {
8819 if start.row > current_end.row + 1 {
8820 push_region(start_row, end_row);
8821 start_row = Some(start);
8822 end_row = Some(end);
8823 } else {
8824 // Merge two hunks.
8825 *current_end = end;
8826 }
8827 } else {
8828 unreachable!();
8829 }
8830 }
8831 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8832 push_region(start_row, end_row);
8833 results
8834 }
8835
8836 /// Get the text ranges corresponding to the redaction query
8837 pub fn redacted_ranges(
8838 &self,
8839 search_range: Range<Anchor>,
8840 display_snapshot: &DisplaySnapshot,
8841 cx: &mut ViewContext<Self>,
8842 ) -> Vec<Range<DisplayPoint>> {
8843 display_snapshot
8844 .buffer_snapshot
8845 .redacted_ranges(search_range, |file| {
8846 if let Some(file) = file {
8847 file.is_private()
8848 && EditorSettings::get(Some((file.worktree_id(), file.path())), cx)
8849 .redact_private_values
8850 } else {
8851 false
8852 }
8853 })
8854 .map(|range| {
8855 range.start.to_display_point(display_snapshot)
8856 ..range.end.to_display_point(display_snapshot)
8857 })
8858 .collect()
8859 }
8860
8861 pub fn highlight_text<T: 'static>(
8862 &mut self,
8863 ranges: Vec<Range<Anchor>>,
8864 style: HighlightStyle,
8865 cx: &mut ViewContext<Self>,
8866 ) {
8867 self.display_map.update(cx, |map, _| {
8868 map.highlight_text(TypeId::of::<T>(), ranges, style)
8869 });
8870 cx.notify();
8871 }
8872
8873 pub(crate) fn highlight_inlays<T: 'static>(
8874 &mut self,
8875 highlights: Vec<InlayHighlight>,
8876 style: HighlightStyle,
8877 cx: &mut ViewContext<Self>,
8878 ) {
8879 self.display_map.update(cx, |map, _| {
8880 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8881 });
8882 cx.notify();
8883 }
8884
8885 pub fn text_highlights<'a, T: 'static>(
8886 &'a self,
8887 cx: &'a AppContext,
8888 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8889 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8890 }
8891
8892 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8893 let cleared = self
8894 .display_map
8895 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8896 if cleared {
8897 cx.notify();
8898 }
8899 }
8900
8901 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8902 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8903 && self.focus_handle.is_focused(cx)
8904 }
8905
8906 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8907 cx.notify();
8908 }
8909
8910 fn on_buffer_event(
8911 &mut self,
8912 multibuffer: Model<MultiBuffer>,
8913 event: &multi_buffer::Event,
8914 cx: &mut ViewContext<Self>,
8915 ) {
8916 match event {
8917 multi_buffer::Event::Edited {
8918 singleton_buffer_edited,
8919 } => {
8920 self.refresh_active_diagnostics(cx);
8921 self.refresh_code_actions(cx);
8922 if self.has_active_copilot_suggestion(cx) {
8923 self.update_visible_copilot_suggestion(cx);
8924 }
8925 cx.emit(EditorEvent::BufferEdited);
8926 cx.emit(SearchEvent::MatchesInvalidated);
8927
8928 if *singleton_buffer_edited {
8929 if let Some(project) = &self.project {
8930 let project = project.read(cx);
8931 let languages_affected = multibuffer
8932 .read(cx)
8933 .all_buffers()
8934 .into_iter()
8935 .filter_map(|buffer| {
8936 let buffer = buffer.read(cx);
8937 let language = buffer.language()?;
8938 if project.is_local()
8939 && project.language_servers_for_buffer(buffer, cx).count() == 0
8940 {
8941 None
8942 } else {
8943 Some(language)
8944 }
8945 })
8946 .cloned()
8947 .collect::<HashSet<_>>();
8948 if !languages_affected.is_empty() {
8949 self.refresh_inlay_hints(
8950 InlayHintRefreshReason::BufferEdited(languages_affected),
8951 cx,
8952 );
8953 }
8954 }
8955 }
8956
8957 let Some(project) = &self.project else { return };
8958 let telemetry = project.read(cx).client().telemetry().clone();
8959 telemetry.log_edit_event("editor");
8960 }
8961 multi_buffer::Event::ExcerptsAdded {
8962 buffer,
8963 predecessor,
8964 excerpts,
8965 } => {
8966 cx.emit(EditorEvent::ExcerptsAdded {
8967 buffer: buffer.clone(),
8968 predecessor: *predecessor,
8969 excerpts: excerpts.clone(),
8970 });
8971 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8972 }
8973 multi_buffer::Event::ExcerptsRemoved { ids } => {
8974 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
8975 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
8976 }
8977 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
8978 multi_buffer::Event::LanguageChanged => {
8979 cx.emit(EditorEvent::Reparsed);
8980 cx.notify();
8981 }
8982 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
8983 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
8984 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
8985 cx.emit(EditorEvent::TitleChanged)
8986 }
8987 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
8988 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
8989 multi_buffer::Event::DiagnosticsUpdated => {
8990 self.refresh_active_diagnostics(cx);
8991 }
8992 _ => {}
8993 };
8994 }
8995
8996 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
8997 cx.notify();
8998 }
8999
9000 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9001 self.refresh_copilot_suggestions(true, cx);
9002 self.refresh_inlay_hints(
9003 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9004 self.selections.newest_anchor().head(),
9005 &self.buffer.read(cx).snapshot(cx),
9006 cx,
9007 )),
9008 cx,
9009 );
9010 let editor_settings = EditorSettings::get_global(cx);
9011 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9012 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9013 cx.notify();
9014 }
9015
9016 pub fn set_searchable(&mut self, searchable: bool) {
9017 self.searchable = searchable;
9018 }
9019
9020 pub fn searchable(&self) -> bool {
9021 self.searchable
9022 }
9023
9024 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9025 let buffer = self.buffer.read(cx);
9026 if buffer.is_singleton() {
9027 cx.propagate();
9028 return;
9029 }
9030
9031 let Some(workspace) = self.workspace() else {
9032 cx.propagate();
9033 return;
9034 };
9035
9036 let mut new_selections_by_buffer = HashMap::default();
9037 for selection in self.selections.all::<usize>(cx) {
9038 for (buffer, mut range, _) in
9039 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9040 {
9041 if selection.reversed {
9042 mem::swap(&mut range.start, &mut range.end);
9043 }
9044 new_selections_by_buffer
9045 .entry(buffer)
9046 .or_insert(Vec::new())
9047 .push(range)
9048 }
9049 }
9050
9051 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
9052
9053 // We defer the pane interaction because we ourselves are a workspace item
9054 // and activating a new item causes the pane to call a method on us reentrantly,
9055 // which panics if we're on the stack.
9056 cx.window_context().defer(move |cx| {
9057 workspace.update(cx, |workspace, cx| {
9058 let pane = workspace.active_pane().clone();
9059 pane.update(cx, |pane, _| pane.disable_history());
9060
9061 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
9062 let editor = workspace.open_project_item::<Self>(buffer, cx);
9063 editor.update(cx, |editor, cx| {
9064 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9065 s.select_ranges(ranges);
9066 });
9067 });
9068 }
9069
9070 pane.update(cx, |pane, _| pane.enable_history());
9071 })
9072 });
9073 }
9074
9075 fn jump(
9076 &mut self,
9077 path: ProjectPath,
9078 position: Point,
9079 anchor: language::Anchor,
9080 cx: &mut ViewContext<Self>,
9081 ) {
9082 let workspace = self.workspace();
9083 cx.spawn(|_, mut cx| async move {
9084 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9085 let editor = workspace.update(&mut cx, |workspace, cx| {
9086 workspace.open_path(path, None, true, cx)
9087 })?;
9088 let editor = editor
9089 .await?
9090 .downcast::<Editor>()
9091 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9092 .downgrade();
9093 editor.update(&mut cx, |editor, cx| {
9094 let buffer = editor
9095 .buffer()
9096 .read(cx)
9097 .as_singleton()
9098 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9099 let buffer = buffer.read(cx);
9100 let cursor = if buffer.can_resolve(&anchor) {
9101 language::ToPoint::to_point(&anchor, buffer)
9102 } else {
9103 buffer.clip_point(position, Bias::Left)
9104 };
9105
9106 let nav_history = editor.nav_history.take();
9107 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9108 s.select_ranges([cursor..cursor]);
9109 });
9110 editor.nav_history = nav_history;
9111
9112 anyhow::Ok(())
9113 })??;
9114
9115 anyhow::Ok(())
9116 })
9117 .detach_and_log_err(cx);
9118 }
9119
9120 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9121 let snapshot = self.buffer.read(cx).read(cx);
9122 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9123 Some(
9124 ranges
9125 .iter()
9126 .map(move |range| {
9127 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9128 })
9129 .collect(),
9130 )
9131 }
9132
9133 fn selection_replacement_ranges(
9134 &self,
9135 range: Range<OffsetUtf16>,
9136 cx: &AppContext,
9137 ) -> Vec<Range<OffsetUtf16>> {
9138 let selections = self.selections.all::<OffsetUtf16>(cx);
9139 let newest_selection = selections
9140 .iter()
9141 .max_by_key(|selection| selection.id)
9142 .unwrap();
9143 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9144 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9145 let snapshot = self.buffer.read(cx).read(cx);
9146 selections
9147 .into_iter()
9148 .map(|mut selection| {
9149 selection.start.0 =
9150 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9151 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9152 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9153 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9154 })
9155 .collect()
9156 }
9157
9158 fn report_copilot_event(
9159 &self,
9160 suggestion_id: Option<String>,
9161 suggestion_accepted: bool,
9162 cx: &AppContext,
9163 ) {
9164 let Some(project) = &self.project else { return };
9165
9166 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
9167 let file_extension = self
9168 .buffer
9169 .read(cx)
9170 .as_singleton()
9171 .and_then(|b| b.read(cx).file())
9172 .and_then(|file| Path::new(file.file_name(cx)).extension())
9173 .and_then(|e| e.to_str())
9174 .map(|a| a.to_string());
9175
9176 let telemetry = project.read(cx).client().telemetry().clone();
9177
9178 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
9179 }
9180
9181 #[cfg(any(test, feature = "test-support"))]
9182 fn report_editor_event(
9183 &self,
9184 _operation: &'static str,
9185 _file_extension: Option<String>,
9186 _cx: &AppContext,
9187 ) {
9188 }
9189
9190 #[cfg(not(any(test, feature = "test-support")))]
9191 fn report_editor_event(
9192 &self,
9193 operation: &'static str,
9194 file_extension: Option<String>,
9195 cx: &AppContext,
9196 ) {
9197 let Some(project) = &self.project else { return };
9198
9199 // If None, we are in a file without an extension
9200 let file = self
9201 .buffer
9202 .read(cx)
9203 .as_singleton()
9204 .and_then(|b| b.read(cx).file());
9205 let file_extension = file_extension.or(file
9206 .as_ref()
9207 .and_then(|file| Path::new(file.file_name(cx)).extension())
9208 .and_then(|e| e.to_str())
9209 .map(|a| a.to_string()));
9210
9211 let vim_mode = cx
9212 .global::<SettingsStore>()
9213 .raw_user_settings()
9214 .get("vim_mode")
9215 == Some(&serde_json::Value::Bool(true));
9216 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9217 let copilot_enabled_for_language = self
9218 .buffer
9219 .read(cx)
9220 .settings_at(0, cx)
9221 .show_copilot_suggestions;
9222
9223 let telemetry = project.read(cx).client().telemetry().clone();
9224 telemetry.report_editor_event(
9225 file_extension,
9226 vim_mode,
9227 operation,
9228 copilot_enabled,
9229 copilot_enabled_for_language,
9230 )
9231 }
9232
9233 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9234 /// with each line being an array of {text, highlight} objects.
9235 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9236 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9237 return;
9238 };
9239
9240 #[derive(Serialize)]
9241 struct Chunk<'a> {
9242 text: String,
9243 highlight: Option<&'a str>,
9244 }
9245
9246 let snapshot = buffer.read(cx).snapshot();
9247 let range = self
9248 .selected_text_range(cx)
9249 .and_then(|selected_range| {
9250 if selected_range.is_empty() {
9251 None
9252 } else {
9253 Some(selected_range)
9254 }
9255 })
9256 .unwrap_or_else(|| 0..snapshot.len());
9257
9258 let chunks = snapshot.chunks(range, true);
9259 let mut lines = Vec::new();
9260 let mut line: VecDeque<Chunk> = VecDeque::new();
9261
9262 let Some(style) = self.style.as_ref() else {
9263 return;
9264 };
9265
9266 for chunk in chunks {
9267 let highlight = chunk
9268 .syntax_highlight_id
9269 .and_then(|id| id.name(&style.syntax));
9270 let mut chunk_lines = chunk.text.split("\n").peekable();
9271 while let Some(text) = chunk_lines.next() {
9272 let mut merged_with_last_token = false;
9273 if let Some(last_token) = line.back_mut() {
9274 if last_token.highlight == highlight {
9275 last_token.text.push_str(text);
9276 merged_with_last_token = true;
9277 }
9278 }
9279
9280 if !merged_with_last_token {
9281 line.push_back(Chunk {
9282 text: text.into(),
9283 highlight,
9284 });
9285 }
9286
9287 if chunk_lines.peek().is_some() {
9288 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9289 line.pop_front();
9290 }
9291 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9292 line.pop_back();
9293 }
9294
9295 lines.push(mem::take(&mut line));
9296 }
9297 }
9298 }
9299
9300 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9301 return;
9302 };
9303 cx.write_to_clipboard(ClipboardItem::new(lines));
9304 }
9305
9306 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9307 &self.inlay_hint_cache
9308 }
9309
9310 pub fn replay_insert_event(
9311 &mut self,
9312 text: &str,
9313 relative_utf16_range: Option<Range<isize>>,
9314 cx: &mut ViewContext<Self>,
9315 ) {
9316 if !self.input_enabled {
9317 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9318 return;
9319 }
9320 if let Some(relative_utf16_range) = relative_utf16_range {
9321 let selections = self.selections.all::<OffsetUtf16>(cx);
9322 self.change_selections(None, cx, |s| {
9323 let new_ranges = selections.into_iter().map(|range| {
9324 let start = OffsetUtf16(
9325 range
9326 .head()
9327 .0
9328 .saturating_add_signed(relative_utf16_range.start),
9329 );
9330 let end = OffsetUtf16(
9331 range
9332 .head()
9333 .0
9334 .saturating_add_signed(relative_utf16_range.end),
9335 );
9336 start..end
9337 });
9338 s.select_ranges(new_ranges);
9339 });
9340 }
9341
9342 self.handle_input(text, cx);
9343 }
9344
9345 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9346 let Some(project) = self.project.as_ref() else {
9347 return false;
9348 };
9349 let project = project.read(cx);
9350
9351 let mut supports = false;
9352 self.buffer().read(cx).for_each_buffer(|buffer| {
9353 if !supports {
9354 supports = project
9355 .language_servers_for_buffer(buffer.read(cx), cx)
9356 .any(
9357 |(_, server)| match server.capabilities().inlay_hint_provider {
9358 Some(lsp::OneOf::Left(enabled)) => enabled,
9359 Some(lsp::OneOf::Right(_)) => true,
9360 None => false,
9361 },
9362 )
9363 }
9364 });
9365 supports
9366 }
9367
9368 pub fn focus(&self, cx: &mut WindowContext) {
9369 cx.focus(&self.focus_handle)
9370 }
9371
9372 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9373 self.focus_handle.is_focused(cx)
9374 }
9375
9376 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9377 cx.emit(EditorEvent::Focused);
9378
9379 if let Some(rename) = self.pending_rename.as_ref() {
9380 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9381 cx.focus(&rename_editor_focus_handle);
9382 } else {
9383 self.blink_manager.update(cx, BlinkManager::enable);
9384 self.show_cursor_names(cx);
9385 self.buffer.update(cx, |buffer, cx| {
9386 buffer.finalize_last_transaction(cx);
9387 if self.leader_peer_id.is_none() {
9388 buffer.set_active_selections(
9389 &self.selections.disjoint_anchors(),
9390 self.selections.line_mode,
9391 self.cursor_shape,
9392 cx,
9393 );
9394 }
9395 });
9396 }
9397 }
9398
9399 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9400 self.blink_manager.update(cx, BlinkManager::disable);
9401 self.buffer
9402 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9403 self.hide_context_menu(cx);
9404 hide_hover(self, cx);
9405 cx.emit(EditorEvent::Blurred);
9406 cx.notify();
9407 }
9408
9409 pub fn register_action<A: Action>(
9410 &mut self,
9411 listener: impl Fn(&A, &mut WindowContext) + 'static,
9412 ) -> &mut Self {
9413 let listener = Arc::new(listener);
9414
9415 self.editor_actions.push(Box::new(move |cx| {
9416 let _view = cx.view().clone();
9417 let cx = cx.window_context();
9418 let listener = listener.clone();
9419 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9420 let action = action.downcast_ref().unwrap();
9421 if phase == DispatchPhase::Bubble {
9422 listener(action, cx)
9423 }
9424 })
9425 }));
9426 self
9427 }
9428}
9429
9430pub trait CollaborationHub {
9431 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9432 fn user_participant_indices<'a>(
9433 &self,
9434 cx: &'a AppContext,
9435 ) -> &'a HashMap<u64, ParticipantIndex>;
9436 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9437}
9438
9439impl CollaborationHub for Model<Project> {
9440 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9441 self.read(cx).collaborators()
9442 }
9443
9444 fn user_participant_indices<'a>(
9445 &self,
9446 cx: &'a AppContext,
9447 ) -> &'a HashMap<u64, ParticipantIndex> {
9448 self.read(cx).user_store().read(cx).participant_indices()
9449 }
9450
9451 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9452 let this = self.read(cx);
9453 let user_ids = this.collaborators().values().map(|c| c.user_id);
9454 this.user_store().read_with(cx, |user_store, cx| {
9455 user_store.participant_names(user_ids, cx)
9456 })
9457 }
9458}
9459
9460pub trait CompletionProvider {
9461 fn completions(
9462 &self,
9463 buffer: &Model<Buffer>,
9464 buffer_position: text::Anchor,
9465 cx: &mut ViewContext<Editor>,
9466 ) -> Task<Result<Vec<Completion>>>;
9467
9468 fn resolve_completions(
9469 &self,
9470 completion_indices: Vec<usize>,
9471 completions: Arc<RwLock<Box<[Completion]>>>,
9472 cx: &mut ViewContext<Editor>,
9473 ) -> Task<Result<bool>>;
9474
9475 fn apply_additional_edits_for_completion(
9476 &self,
9477 buffer: Model<Buffer>,
9478 completion: Completion,
9479 push_to_history: bool,
9480 cx: &mut ViewContext<Editor>,
9481 ) -> Task<Result<Option<language::Transaction>>>;
9482}
9483
9484impl CompletionProvider for Model<Project> {
9485 fn completions(
9486 &self,
9487 buffer: &Model<Buffer>,
9488 buffer_position: text::Anchor,
9489 cx: &mut ViewContext<Editor>,
9490 ) -> Task<Result<Vec<Completion>>> {
9491 self.update(cx, |project, cx| {
9492 project.completions(&buffer, buffer_position, cx)
9493 })
9494 }
9495
9496 fn resolve_completions(
9497 &self,
9498 completion_indices: Vec<usize>,
9499 completions: Arc<RwLock<Box<[Completion]>>>,
9500 cx: &mut ViewContext<Editor>,
9501 ) -> Task<Result<bool>> {
9502 self.update(cx, |project, cx| {
9503 project.resolve_completions(completion_indices, completions, cx)
9504 })
9505 }
9506
9507 fn apply_additional_edits_for_completion(
9508 &self,
9509 buffer: Model<Buffer>,
9510 completion: Completion,
9511 push_to_history: bool,
9512 cx: &mut ViewContext<Editor>,
9513 ) -> Task<Result<Option<language::Transaction>>> {
9514 self.update(cx, |project, cx| {
9515 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9516 })
9517 }
9518}
9519
9520fn inlay_hint_settings(
9521 location: Anchor,
9522 snapshot: &MultiBufferSnapshot,
9523 cx: &mut ViewContext<'_, Editor>,
9524) -> InlayHintSettings {
9525 let file = snapshot.file_at(location);
9526 let language = snapshot.language_at(location);
9527 let settings = all_language_settings(file, cx);
9528 settings
9529 .language(language.map(|l| l.name()).as_deref())
9530 .inlay_hints
9531}
9532
9533fn consume_contiguous_rows(
9534 contiguous_row_selections: &mut Vec<Selection<Point>>,
9535 selection: &Selection<Point>,
9536 display_map: &DisplaySnapshot,
9537 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9538) -> (u32, u32) {
9539 contiguous_row_selections.push(selection.clone());
9540 let start_row = selection.start.row;
9541 let mut end_row = ending_row(selection, display_map);
9542
9543 while let Some(next_selection) = selections.peek() {
9544 if next_selection.start.row <= end_row {
9545 end_row = ending_row(next_selection, display_map);
9546 contiguous_row_selections.push(selections.next().unwrap().clone());
9547 } else {
9548 break;
9549 }
9550 }
9551 (start_row, end_row)
9552}
9553
9554fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9555 if next_selection.end.column > 0 || next_selection.is_empty() {
9556 display_map.next_line_boundary(next_selection.end).0.row + 1
9557 } else {
9558 next_selection.end.row
9559 }
9560}
9561
9562impl EditorSnapshot {
9563 pub fn remote_selections_in_range<'a>(
9564 &'a self,
9565 range: &'a Range<Anchor>,
9566 collaboration_hub: &dyn CollaborationHub,
9567 cx: &'a AppContext,
9568 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9569 let participant_names = collaboration_hub.user_names(cx);
9570 let participant_indices = collaboration_hub.user_participant_indices(cx);
9571 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9572 let collaborators_by_replica_id = collaborators_by_peer_id
9573 .iter()
9574 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9575 .collect::<HashMap<_, _>>();
9576 self.buffer_snapshot
9577 .remote_selections_in_range(range)
9578 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9579 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9580 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9581 let user_name = participant_names.get(&collaborator.user_id).cloned();
9582 Some(RemoteSelection {
9583 replica_id,
9584 selection,
9585 cursor_shape,
9586 line_mode,
9587 participant_index,
9588 peer_id: collaborator.peer_id,
9589 user_name,
9590 })
9591 })
9592 }
9593
9594 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9595 self.display_snapshot.buffer_snapshot.language_at(position)
9596 }
9597
9598 pub fn is_focused(&self) -> bool {
9599 self.is_focused
9600 }
9601
9602 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9603 self.placeholder_text.as_ref()
9604 }
9605
9606 pub fn scroll_position(&self) -> gpui::Point<f32> {
9607 self.scroll_anchor.scroll_position(&self.display_snapshot)
9608 }
9609
9610 pub fn gutter_dimensions(
9611 &self,
9612 font_id: FontId,
9613 font_size: Pixels,
9614 em_width: Pixels,
9615 max_line_number_width: Pixels,
9616 cx: &AppContext,
9617 ) -> GutterDimensions {
9618 if self.show_gutter {
9619 let descent = cx.text_system().descent(font_id, font_size);
9620 let gutter_padding_factor = 4.0;
9621 let gutter_padding = (em_width * gutter_padding_factor).round();
9622 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9623 let min_width_for_number_on_gutter = em_width * 4.0;
9624 let gutter_width =
9625 max_line_number_width.max(min_width_for_number_on_gutter) + gutter_padding * 2.0;
9626 let gutter_margin = -descent;
9627
9628 GutterDimensions {
9629 padding: gutter_padding,
9630 width: gutter_width,
9631 margin: gutter_margin,
9632 }
9633 } else {
9634 GutterDimensions::default()
9635 }
9636 }
9637}
9638
9639impl Deref for EditorSnapshot {
9640 type Target = DisplaySnapshot;
9641
9642 fn deref(&self) -> &Self::Target {
9643 &self.display_snapshot
9644 }
9645}
9646
9647#[derive(Clone, Debug, PartialEq, Eq)]
9648pub enum EditorEvent {
9649 InputIgnored {
9650 text: Arc<str>,
9651 },
9652 InputHandled {
9653 utf16_range_to_replace: Option<Range<isize>>,
9654 text: Arc<str>,
9655 },
9656 ExcerptsAdded {
9657 buffer: Model<Buffer>,
9658 predecessor: ExcerptId,
9659 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9660 },
9661 ExcerptsRemoved {
9662 ids: Vec<ExcerptId>,
9663 },
9664 BufferEdited,
9665 Edited,
9666 Reparsed,
9667 Focused,
9668 Blurred,
9669 DirtyChanged,
9670 Saved,
9671 TitleChanged,
9672 DiffBaseChanged,
9673 SelectionsChanged {
9674 local: bool,
9675 },
9676 ScrollPositionChanged {
9677 local: bool,
9678 autoscroll: bool,
9679 },
9680 Closed,
9681}
9682
9683impl EventEmitter<EditorEvent> for Editor {}
9684
9685impl FocusableView for Editor {
9686 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9687 self.focus_handle.clone()
9688 }
9689}
9690
9691impl Render for Editor {
9692 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9693 let settings = ThemeSettings::get_global(cx);
9694 let text_style = match self.mode {
9695 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9696 color: cx.theme().colors().editor_foreground,
9697 font_family: settings.ui_font.family.clone(),
9698 font_features: settings.ui_font.features,
9699 font_size: rems(0.875).into(),
9700 font_weight: FontWeight::NORMAL,
9701 font_style: FontStyle::Normal,
9702 line_height: relative(settings.buffer_line_height.value()),
9703 background_color: None,
9704 underline: None,
9705 strikethrough: None,
9706 white_space: WhiteSpace::Normal,
9707 },
9708
9709 EditorMode::Full => TextStyle {
9710 color: cx.theme().colors().editor_foreground,
9711 font_family: settings.buffer_font.family.clone(),
9712 font_features: settings.buffer_font.features,
9713 font_size: settings.buffer_font_size(cx).into(),
9714 font_weight: FontWeight::NORMAL,
9715 font_style: FontStyle::Normal,
9716 line_height: relative(settings.buffer_line_height.value()),
9717 background_color: None,
9718 underline: None,
9719 strikethrough: None,
9720 white_space: WhiteSpace::Normal,
9721 },
9722 };
9723
9724 let background = match self.mode {
9725 EditorMode::SingleLine => cx.theme().system().transparent,
9726 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9727 EditorMode::Full => cx.theme().colors().editor_background,
9728 };
9729
9730 EditorElement::new(
9731 cx.view(),
9732 EditorStyle {
9733 background,
9734 local_player: cx.theme().players().local(),
9735 text: text_style,
9736 scrollbar_width: px(12.),
9737 syntax: cx.theme().syntax().clone(),
9738 status: cx.theme().status().clone(),
9739 inlays_style: HighlightStyle {
9740 color: Some(cx.theme().status().hint),
9741 font_weight: Some(FontWeight::BOLD),
9742 ..HighlightStyle::default()
9743 },
9744 suggestions_style: HighlightStyle {
9745 color: Some(cx.theme().status().predictive),
9746 ..HighlightStyle::default()
9747 },
9748 },
9749 )
9750 }
9751}
9752
9753impl ViewInputHandler for Editor {
9754 fn text_for_range(
9755 &mut self,
9756 range_utf16: Range<usize>,
9757 cx: &mut ViewContext<Self>,
9758 ) -> Option<String> {
9759 Some(
9760 self.buffer
9761 .read(cx)
9762 .read(cx)
9763 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9764 .collect(),
9765 )
9766 }
9767
9768 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9769 // Prevent the IME menu from appearing when holding down an alphabetic key
9770 // while input is disabled.
9771 if !self.input_enabled {
9772 return None;
9773 }
9774
9775 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9776 Some(range.start.0..range.end.0)
9777 }
9778
9779 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9780 let snapshot = self.buffer.read(cx).read(cx);
9781 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9782 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9783 }
9784
9785 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9786 self.clear_highlights::<InputComposition>(cx);
9787 self.ime_transaction.take();
9788 }
9789
9790 fn replace_text_in_range(
9791 &mut self,
9792 range_utf16: Option<Range<usize>>,
9793 text: &str,
9794 cx: &mut ViewContext<Self>,
9795 ) {
9796 if !self.input_enabled {
9797 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9798 return;
9799 }
9800
9801 self.transact(cx, |this, cx| {
9802 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9803 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9804 Some(this.selection_replacement_ranges(range_utf16, cx))
9805 } else {
9806 this.marked_text_ranges(cx)
9807 };
9808
9809 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9810 let newest_selection_id = this.selections.newest_anchor().id;
9811 this.selections
9812 .all::<OffsetUtf16>(cx)
9813 .iter()
9814 .zip(ranges_to_replace.iter())
9815 .find_map(|(selection, range)| {
9816 if selection.id == newest_selection_id {
9817 Some(
9818 (range.start.0 as isize - selection.head().0 as isize)
9819 ..(range.end.0 as isize - selection.head().0 as isize),
9820 )
9821 } else {
9822 None
9823 }
9824 })
9825 });
9826
9827 cx.emit(EditorEvent::InputHandled {
9828 utf16_range_to_replace: range_to_replace,
9829 text: text.into(),
9830 });
9831
9832 if let Some(new_selected_ranges) = new_selected_ranges {
9833 this.change_selections(None, cx, |selections| {
9834 selections.select_ranges(new_selected_ranges)
9835 });
9836 this.backspace(&Default::default(), cx);
9837 }
9838
9839 this.handle_input(text, cx);
9840 });
9841
9842 if let Some(transaction) = self.ime_transaction {
9843 self.buffer.update(cx, |buffer, cx| {
9844 buffer.group_until_transaction(transaction, cx);
9845 });
9846 }
9847
9848 self.unmark_text(cx);
9849 }
9850
9851 fn replace_and_mark_text_in_range(
9852 &mut self,
9853 range_utf16: Option<Range<usize>>,
9854 text: &str,
9855 new_selected_range_utf16: Option<Range<usize>>,
9856 cx: &mut ViewContext<Self>,
9857 ) {
9858 if !self.input_enabled {
9859 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9860 return;
9861 }
9862
9863 let transaction = self.transact(cx, |this, cx| {
9864 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9865 let snapshot = this.buffer.read(cx).read(cx);
9866 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9867 for marked_range in &mut marked_ranges {
9868 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9869 marked_range.start.0 += relative_range_utf16.start;
9870 marked_range.start =
9871 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9872 marked_range.end =
9873 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9874 }
9875 }
9876 Some(marked_ranges)
9877 } else if let Some(range_utf16) = range_utf16 {
9878 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9879 Some(this.selection_replacement_ranges(range_utf16, cx))
9880 } else {
9881 None
9882 };
9883
9884 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9885 let newest_selection_id = this.selections.newest_anchor().id;
9886 this.selections
9887 .all::<OffsetUtf16>(cx)
9888 .iter()
9889 .zip(ranges_to_replace.iter())
9890 .find_map(|(selection, range)| {
9891 if selection.id == newest_selection_id {
9892 Some(
9893 (range.start.0 as isize - selection.head().0 as isize)
9894 ..(range.end.0 as isize - selection.head().0 as isize),
9895 )
9896 } else {
9897 None
9898 }
9899 })
9900 });
9901
9902 cx.emit(EditorEvent::InputHandled {
9903 utf16_range_to_replace: range_to_replace,
9904 text: text.into(),
9905 });
9906
9907 if let Some(ranges) = ranges_to_replace {
9908 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9909 }
9910
9911 let marked_ranges = {
9912 let snapshot = this.buffer.read(cx).read(cx);
9913 this.selections
9914 .disjoint_anchors()
9915 .iter()
9916 .map(|selection| {
9917 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9918 })
9919 .collect::<Vec<_>>()
9920 };
9921
9922 if text.is_empty() {
9923 this.unmark_text(cx);
9924 } else {
9925 this.highlight_text::<InputComposition>(
9926 marked_ranges.clone(),
9927 HighlightStyle {
9928 underline: Some(UnderlineStyle {
9929 thickness: px(1.),
9930 color: None,
9931 wavy: false,
9932 }),
9933 ..Default::default()
9934 },
9935 cx,
9936 );
9937 }
9938
9939 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
9940 let use_autoclose = this.use_autoclose;
9941 this.set_use_autoclose(false);
9942 this.handle_input(text, cx);
9943 this.set_use_autoclose(use_autoclose);
9944
9945 if let Some(new_selected_range) = new_selected_range_utf16 {
9946 let snapshot = this.buffer.read(cx).read(cx);
9947 let new_selected_ranges = marked_ranges
9948 .into_iter()
9949 .map(|marked_range| {
9950 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
9951 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
9952 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
9953 snapshot.clip_offset_utf16(new_start, Bias::Left)
9954 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
9955 })
9956 .collect::<Vec<_>>();
9957
9958 drop(snapshot);
9959 this.change_selections(None, cx, |selections| {
9960 selections.select_ranges(new_selected_ranges)
9961 });
9962 }
9963 });
9964
9965 self.ime_transaction = self.ime_transaction.or(transaction);
9966 if let Some(transaction) = self.ime_transaction {
9967 self.buffer.update(cx, |buffer, cx| {
9968 buffer.group_until_transaction(transaction, cx);
9969 });
9970 }
9971
9972 if self.text_highlights::<InputComposition>(cx).is_none() {
9973 self.ime_transaction.take();
9974 }
9975 }
9976
9977 fn bounds_for_range(
9978 &mut self,
9979 range_utf16: Range<usize>,
9980 element_bounds: gpui::Bounds<Pixels>,
9981 cx: &mut ViewContext<Self>,
9982 ) -> Option<gpui::Bounds<Pixels>> {
9983 let text_layout_details = self.text_layout_details(cx);
9984 let style = &text_layout_details.editor_style;
9985 let font_id = cx.text_system().resolve_font(&style.text.font());
9986 let font_size = style.text.font_size.to_pixels(cx.rem_size());
9987 let line_height = style.text.line_height_in_pixels(cx.rem_size());
9988 let em_width = cx
9989 .text_system()
9990 .typographic_bounds(font_id, font_size, 'm')
9991 .unwrap()
9992 .size
9993 .width;
9994
9995 let snapshot = self.snapshot(cx);
9996 let scroll_position = snapshot.scroll_position();
9997 let scroll_left = scroll_position.x * em_width;
9998
9999 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10000 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10001 + self.gutter_width;
10002 let y = line_height * (start.row() as f32 - scroll_position.y);
10003
10004 Some(Bounds {
10005 origin: element_bounds.origin + point(x, y),
10006 size: size(em_width, line_height),
10007 })
10008 }
10009}
10010
10011trait SelectionExt {
10012 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10013 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10014 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10015 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10016 -> Range<u32>;
10017}
10018
10019impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10020 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10021 let start = self.start.to_point(buffer);
10022 let end = self.end.to_point(buffer);
10023 if self.reversed {
10024 end..start
10025 } else {
10026 start..end
10027 }
10028 }
10029
10030 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10031 let start = self.start.to_offset(buffer);
10032 let end = self.end.to_offset(buffer);
10033 if self.reversed {
10034 end..start
10035 } else {
10036 start..end
10037 }
10038 }
10039
10040 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10041 let start = self
10042 .start
10043 .to_point(&map.buffer_snapshot)
10044 .to_display_point(map);
10045 let end = self
10046 .end
10047 .to_point(&map.buffer_snapshot)
10048 .to_display_point(map);
10049 if self.reversed {
10050 end..start
10051 } else {
10052 start..end
10053 }
10054 }
10055
10056 fn spanned_rows(
10057 &self,
10058 include_end_if_at_line_start: bool,
10059 map: &DisplaySnapshot,
10060 ) -> Range<u32> {
10061 let start = self.start.to_point(&map.buffer_snapshot);
10062 let mut end = self.end.to_point(&map.buffer_snapshot);
10063 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10064 end.row -= 1;
10065 }
10066
10067 let buffer_start = map.prev_line_boundary(start).0;
10068 let buffer_end = map.next_line_boundary(end).0;
10069 buffer_start.row..buffer_end.row + 1
10070 }
10071}
10072
10073impl<T: InvalidationRegion> InvalidationStack<T> {
10074 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10075 where
10076 S: Clone + ToOffset,
10077 {
10078 while let Some(region) = self.last() {
10079 let all_selections_inside_invalidation_ranges =
10080 if selections.len() == region.ranges().len() {
10081 selections
10082 .iter()
10083 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10084 .all(|(selection, invalidation_range)| {
10085 let head = selection.head().to_offset(buffer);
10086 invalidation_range.start <= head && invalidation_range.end >= head
10087 })
10088 } else {
10089 false
10090 };
10091
10092 if all_selections_inside_invalidation_ranges {
10093 break;
10094 } else {
10095 self.pop();
10096 }
10097 }
10098 }
10099}
10100
10101impl<T> Default for InvalidationStack<T> {
10102 fn default() -> Self {
10103 Self(Default::default())
10104 }
10105}
10106
10107impl<T> Deref for InvalidationStack<T> {
10108 type Target = Vec<T>;
10109
10110 fn deref(&self) -> &Self::Target {
10111 &self.0
10112 }
10113}
10114
10115impl<T> DerefMut for InvalidationStack<T> {
10116 fn deref_mut(&mut self) -> &mut Self::Target {
10117 &mut self.0
10118 }
10119}
10120
10121impl InvalidationRegion for SnippetState {
10122 fn ranges(&self) -> &[Range<Anchor>] {
10123 &self.ranges[self.active_index]
10124 }
10125}
10126
10127pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10128 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10129
10130 Arc::new(move |cx: &mut BlockContext| {
10131 let group_id: SharedString = cx.block_id.to_string().into();
10132
10133 let mut text_style = cx.text_style().clone();
10134 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10135
10136 h_flex()
10137 .id(cx.block_id)
10138 .group(group_id.clone())
10139 .relative()
10140 .size_full()
10141 .pl(cx.gutter_width)
10142 .w(cx.max_width + cx.gutter_width)
10143 .child(div().flex().w(cx.anchor_x - cx.gutter_width).flex_shrink())
10144 .child(div().flex().flex_shrink_0().child(
10145 StyledText::new(text_without_backticks.clone()).with_highlights(
10146 &text_style,
10147 code_ranges.iter().map(|range| {
10148 (
10149 range.clone(),
10150 HighlightStyle {
10151 font_weight: Some(FontWeight::BOLD),
10152 ..Default::default()
10153 },
10154 )
10155 }),
10156 ),
10157 ))
10158 .child(
10159 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
10160 .icon_color(Color::Muted)
10161 .size(ButtonSize::Compact)
10162 .style(ButtonStyle::Transparent)
10163 .visible_on_hover(group_id)
10164 .on_click({
10165 let message = diagnostic.message.clone();
10166 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10167 })
10168 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10169 )
10170 .into_any_element()
10171 })
10172}
10173
10174pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10175 let mut text_without_backticks = String::new();
10176 let mut code_ranges = Vec::new();
10177
10178 if let Some(source) = &diagnostic.source {
10179 text_without_backticks.push_str(&source);
10180 code_ranges.push(0..source.len());
10181 text_without_backticks.push_str(": ");
10182 }
10183
10184 let mut prev_offset = 0;
10185 let mut in_code_block = false;
10186 for (ix, _) in diagnostic
10187 .message
10188 .match_indices('`')
10189 .chain([(diagnostic.message.len(), "")])
10190 {
10191 let prev_len = text_without_backticks.len();
10192 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10193 prev_offset = ix + 1;
10194 if in_code_block {
10195 code_ranges.push(prev_len..text_without_backticks.len());
10196 in_code_block = false;
10197 } else {
10198 in_code_block = true;
10199 }
10200 }
10201
10202 (text_without_backticks.into(), code_ranges)
10203}
10204
10205fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10206 match (severity, valid) {
10207 (DiagnosticSeverity::ERROR, true) => colors.error,
10208 (DiagnosticSeverity::ERROR, false) => colors.error,
10209 (DiagnosticSeverity::WARNING, true) => colors.warning,
10210 (DiagnosticSeverity::WARNING, false) => colors.warning,
10211 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10212 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10213 (DiagnosticSeverity::HINT, true) => colors.info,
10214 (DiagnosticSeverity::HINT, false) => colors.info,
10215 _ => colors.ignored,
10216 }
10217}
10218
10219pub fn styled_runs_for_code_label<'a>(
10220 label: &'a CodeLabel,
10221 syntax_theme: &'a theme::SyntaxTheme,
10222) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10223 let fade_out = HighlightStyle {
10224 fade_out: Some(0.35),
10225 ..Default::default()
10226 };
10227
10228 let mut prev_end = label.filter_range.end;
10229 label
10230 .runs
10231 .iter()
10232 .enumerate()
10233 .flat_map(move |(ix, (range, highlight_id))| {
10234 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10235 style
10236 } else {
10237 return Default::default();
10238 };
10239 let mut muted_style = style;
10240 muted_style.highlight(fade_out);
10241
10242 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10243 if range.start >= label.filter_range.end {
10244 if range.start > prev_end {
10245 runs.push((prev_end..range.start, fade_out));
10246 }
10247 runs.push((range.clone(), muted_style));
10248 } else if range.end <= label.filter_range.end {
10249 runs.push((range.clone(), style));
10250 } else {
10251 runs.push((range.start..label.filter_range.end, style));
10252 runs.push((label.filter_range.end..range.end, muted_style));
10253 }
10254 prev_end = cmp::max(prev_end, range.end);
10255
10256 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10257 runs.push((prev_end..label.text.len(), fade_out));
10258 }
10259
10260 runs
10261 })
10262}
10263
10264pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
10265 let mut index = 0;
10266 let mut codepoints = text.char_indices().peekable();
10267
10268 std::iter::from_fn(move || {
10269 let start_index = index;
10270 while let Some((new_index, codepoint)) = codepoints.next() {
10271 index = new_index + codepoint.len_utf8();
10272 let current_upper = codepoint.is_uppercase();
10273 let next_upper = codepoints
10274 .peek()
10275 .map(|(_, c)| c.is_uppercase())
10276 .unwrap_or(false);
10277
10278 if !current_upper && next_upper {
10279 return Some(&text[start_index..index]);
10280 }
10281 }
10282
10283 index = text.len();
10284 if start_index < text.len() {
10285 return Some(&text[start_index..]);
10286 }
10287 None
10288 })
10289 .flat_map(|word| word.split_inclusive('_'))
10290 .flat_map(|word| word.split_inclusive('-'))
10291}
10292
10293trait RangeToAnchorExt {
10294 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10295}
10296
10297impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10298 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10299 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10300 }
10301}