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