1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides it's behaviour.
15pub mod actions;
16mod blink_manager;
17pub mod display_map;
18mod editor_settings;
19mod element;
20mod inlay_hint_cache;
21
22mod debounced_delay;
23mod git;
24mod highlight_matching_bracket;
25mod hover_links;
26mod hover_popover;
27pub mod items;
28mod mouse_context_menu;
29pub mod movement;
30mod persistence;
31mod rust_analyzer_ext;
32pub mod scroll;
33mod selections_collection;
34
35#[cfg(test)]
36mod editor_tests;
37#[cfg(any(test, feature = "test-support"))]
38pub mod test;
39use ::git::diff::DiffHunk;
40pub(crate) use actions::*;
41use aho_corasick::AhoCorasick;
42use anyhow::{anyhow, Context as _, Result};
43use blink_manager::BlinkManager;
44use client::{Collaborator, ParticipantIndex};
45use clock::ReplicaId;
46use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
47use convert_case::{Case, Casing};
48use copilot::Copilot;
49use debounced_delay::DebouncedDelay;
50pub use display_map::DisplayPoint;
51use display_map::*;
52pub use editor_settings::EditorSettings;
53use element::LineWithInvisibles;
54pub use element::{Cursor, EditorElement, HighlightedRange, HighlightedRangeLine};
55use futures::FutureExt;
56use fuzzy::{StringMatch, StringMatchCandidate};
57use git::diff_hunk_to_display;
58use gpui::{
59 div, impl_actions, point, prelude::*, px, relative, rems, size, uniform_list, Action,
60 AnyElement, AppContext, AsyncWindowContext, BackgroundExecutor, Bounds, ClipboardItem, Context,
61 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
62 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton,
63 ParentElement, Pixels, Render, SharedString, Styled, StyledText, Subscription, Task, TextStyle,
64 UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext,
65 WeakView, WhiteSpace, WindowContext,
66};
67use highlight_matching_bracket::refresh_matching_bracket_highlights;
68use hover_popover::{hide_hover, HoverState};
69use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
70pub use items::MAX_TAB_TITLE_LEN;
71use itertools::Itertools;
72use language::{char_kind, CharKind};
73use language::{
74 language_settings::{self, all_language_settings, InlayHintSettings},
75 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
76 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
77 Language, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
78};
79
80use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
81use lsp::{DiagnosticSeverity, LanguageServerId};
82use mouse_context_menu::MouseContextMenu;
83use movement::TextLayoutDetails;
84use multi_buffer::ToOffsetUtf16;
85pub use multi_buffer::{
86 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
87 ToPoint,
88};
89use ordered_float::OrderedFloat;
90use parking_lot::{Mutex, RwLock};
91use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
92use rand::prelude::*;
93use rpc::proto::*;
94use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
95use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
96use serde::{Deserialize, Serialize};
97use settings::{Settings, SettingsStore};
98use smallvec::SmallVec;
99use snippet::Snippet;
100use std::{
101 any::TypeId,
102 borrow::Cow,
103 cmp::{self, Ordering, Reverse},
104 mem,
105 num::NonZeroU32,
106 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
107 path::Path,
108 sync::Arc,
109 time::{Duration, Instant},
110};
111pub use sum_tree::Bias;
112use sum_tree::TreeMap;
113use text::{BufferId, OffsetUtf16, Rope};
114use theme::{
115 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
116 ThemeColors, ThemeSettings,
117};
118use ui::{
119 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
120 Tooltip,
121};
122use util::{maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
123use workspace::Toast;
124use workspace::{searchable::SearchEvent, ItemNavHistory, Pane, SplitDirection, ViewId, Workspace};
125
126use crate::hover_links::find_url;
127
128const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
129const MAX_LINE_LEN: usize = 1024;
130const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
131const MAX_SELECTION_HISTORY_LEN: usize = 1024;
132const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
133pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
134#[doc(hidden)]
135pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
136#[doc(hidden)]
137pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
138
139pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
140
141pub fn render_parsed_markdown(
142 element_id: impl Into<ElementId>,
143 parsed: &language::ParsedMarkdown,
144 editor_style: &EditorStyle,
145 workspace: Option<WeakView<Workspace>>,
146 cx: &mut ViewContext<Editor>,
147) -> InteractiveText {
148 let code_span_background_color = cx
149 .theme()
150 .colors()
151 .editor_document_highlight_read_background;
152
153 let highlights = gpui::combine_highlights(
154 parsed.highlights.iter().filter_map(|(range, highlight)| {
155 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
156 Some((range.clone(), highlight))
157 }),
158 parsed
159 .regions
160 .iter()
161 .zip(&parsed.region_ranges)
162 .filter_map(|(region, range)| {
163 if region.code {
164 Some((
165 range.clone(),
166 HighlightStyle {
167 background_color: Some(code_span_background_color),
168 ..Default::default()
169 },
170 ))
171 } else {
172 None
173 }
174 }),
175 );
176
177 let mut links = Vec::new();
178 let mut link_ranges = Vec::new();
179 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
180 if let Some(link) = region.link.clone() {
181 links.push(link);
182 link_ranges.push(range.clone());
183 }
184 }
185
186 InteractiveText::new(
187 element_id,
188 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
189 )
190 .on_click(link_ranges, move |clicked_range_ix, cx| {
191 match &links[clicked_range_ix] {
192 markdown::Link::Web { url } => cx.open_url(url),
193 markdown::Link::Path { path } => {
194 if let Some(workspace) = &workspace {
195 _ = workspace.update(cx, |workspace, cx| {
196 workspace.open_abs_path(path.clone(), false, cx).detach();
197 });
198 }
199 }
200 }
201 })
202}
203
204#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
205pub(crate) enum InlayId {
206 Suggestion(usize),
207 Hint(usize),
208}
209
210impl InlayId {
211 fn id(&self) -> usize {
212 match self {
213 Self::Suggestion(id) => *id,
214 Self::Hint(id) => *id,
215 }
216 }
217}
218
219enum DocumentHighlightRead {}
220enum DocumentHighlightWrite {}
221enum InputComposition {}
222
223#[derive(Copy, Clone, PartialEq, Eq)]
224pub enum Direction {
225 Prev,
226 Next,
227}
228
229pub fn init_settings(cx: &mut AppContext) {
230 EditorSettings::register(cx);
231}
232
233pub fn init(cx: &mut AppContext) {
234 init_settings(cx);
235
236 workspace::register_project_item::<Editor>(cx);
237 workspace::register_followable_item::<Editor>(cx);
238 workspace::register_deserializable_item::<Editor>(cx);
239 cx.observe_new_views(
240 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
241 workspace.register_action(Editor::new_file);
242 workspace.register_action(Editor::new_file_in_direction);
243 },
244 )
245 .detach();
246
247 cx.on_action(move |_: &workspace::NewFile, cx| {
248 let app_state = workspace::AppState::global(cx);
249 if let Some(app_state) = app_state.upgrade() {
250 workspace::open_new(&app_state, cx, |workspace, cx| {
251 Editor::new_file(workspace, &Default::default(), cx)
252 })
253 .detach();
254 }
255 });
256 cx.on_action(move |_: &workspace::NewWindow, cx| {
257 let app_state = workspace::AppState::global(cx);
258 if let Some(app_state) = app_state.upgrade() {
259 workspace::open_new(&app_state, cx, |workspace, cx| {
260 Editor::new_file(workspace, &Default::default(), cx)
261 })
262 .detach();
263 }
264 });
265}
266
267trait InvalidationRegion {
268 fn ranges(&self) -> &[Range<Anchor>];
269}
270
271#[derive(Clone, Debug, PartialEq)]
272pub enum SelectPhase {
273 Begin {
274 position: DisplayPoint,
275 add: bool,
276 click_count: usize,
277 },
278 BeginColumnar {
279 position: DisplayPoint,
280 goal_column: u32,
281 },
282 Extend {
283 position: DisplayPoint,
284 click_count: usize,
285 },
286 Update {
287 position: DisplayPoint,
288 goal_column: u32,
289 scroll_delta: gpui::Point<f32>,
290 },
291 End,
292}
293
294#[derive(Clone, Debug)]
295pub enum SelectMode {
296 Character,
297 Word(Range<Anchor>),
298 Line(Range<Anchor>),
299 All,
300}
301
302#[derive(Copy, Clone, PartialEq, Eq, Debug)]
303pub enum EditorMode {
304 SingleLine,
305 AutoHeight { max_lines: usize },
306 Full,
307}
308
309#[derive(Clone, Debug)]
310pub enum SoftWrap {
311 None,
312 EditorWidth,
313 Column(u32),
314}
315
316#[derive(Clone)]
317pub struct EditorStyle {
318 pub background: Hsla,
319 pub local_player: PlayerColor,
320 pub text: TextStyle,
321 pub scrollbar_width: Pixels,
322 pub syntax: Arc<SyntaxTheme>,
323 pub status: StatusColors,
324 pub inlays_style: HighlightStyle,
325 pub suggestions_style: HighlightStyle,
326}
327
328impl Default for EditorStyle {
329 fn default() -> Self {
330 Self {
331 background: Hsla::default(),
332 local_player: PlayerColor::default(),
333 text: TextStyle::default(),
334 scrollbar_width: Pixels::default(),
335 syntax: Default::default(),
336 // HACK: Status colors don't have a real default.
337 // We should look into removing the status colors from the editor
338 // style and retrieve them directly from the theme.
339 status: StatusColors::dark(),
340 inlays_style: HighlightStyle::default(),
341 suggestions_style: HighlightStyle::default(),
342 }
343 }
344}
345
346type CompletionId = usize;
347
348// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
349// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
350
351type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
352type InlayBackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<InlayHighlight>);
353
354/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
355///
356/// See the [module level documentation](self) for more information.
357pub struct Editor {
358 handle: WeakView<Self>,
359 focus_handle: FocusHandle,
360 /// The text buffer being edited
361 buffer: Model<MultiBuffer>,
362 /// Map of how text in the buffer should be displayed.
363 /// Handles soft wraps, folds, fake inlay text insertions, etc.
364 display_map: Model<DisplayMap>,
365 pub selections: SelectionsCollection,
366 pub scroll_manager: ScrollManager,
367 columnar_selection_tail: Option<Anchor>,
368 add_selections_state: Option<AddSelectionsState>,
369 select_next_state: Option<SelectNextState>,
370 select_prev_state: Option<SelectNextState>,
371 selection_history: SelectionHistory,
372 autoclose_regions: Vec<AutocloseRegion>,
373 snippet_stack: InvalidationStack<SnippetState>,
374 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
375 ime_transaction: Option<TransactionId>,
376 active_diagnostics: Option<ActiveDiagnosticGroup>,
377 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
378 project: Option<Model<Project>>,
379 completion_provider: Option<Box<dyn CompletionProvider>>,
380 collaboration_hub: Option<Box<dyn CollaborationHub>>,
381 blink_manager: Model<BlinkManager>,
382 show_cursor_names: bool,
383 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
384 pub show_local_selections: bool,
385 mode: EditorMode,
386 show_breadcrumbs: bool,
387 show_gutter: bool,
388 show_wrap_guides: Option<bool>,
389 placeholder_text: Option<Arc<str>>,
390 highlighted_rows: Option<Range<u32>>,
391 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
392 inlay_background_highlights: TreeMap<Option<TypeId>, InlayBackgroundHighlight>,
393 nav_history: Option<ItemNavHistory>,
394 context_menu: RwLock<Option<ContextMenu>>,
395 mouse_context_menu: Option<MouseContextMenu>,
396 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
397 next_completion_id: CompletionId,
398 completion_documentation_pre_resolve_debounce: DebouncedDelay,
399 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
400 code_actions_task: Option<Task<()>>,
401 document_highlights_task: Option<Task<()>>,
402 pending_rename: Option<RenameState>,
403 searchable: bool,
404 cursor_shape: CursorShape,
405 collapse_matches: bool,
406 autoindent_mode: Option<AutoindentMode>,
407 workspace: Option<(WeakView<Workspace>, i64)>,
408 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
409 input_enabled: bool,
410 use_modal_editing: bool,
411 read_only: bool,
412 leader_peer_id: Option<PeerId>,
413 remote_id: Option<ViewId>,
414 hover_state: HoverState,
415 gutter_hovered: bool,
416 hovered_link_state: Option<HoveredLinkState>,
417 copilot_state: CopilotState,
418 inlay_hint_cache: InlayHintCache,
419 next_inlay_id: usize,
420 _subscriptions: Vec<Subscription>,
421 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
422 gutter_width: Pixels,
423 style: Option<EditorStyle>,
424 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
425 show_copilot_suggestions: bool,
426 use_autoclose: bool,
427 custom_context_menu: Option<
428 Box<
429 dyn 'static
430 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
431 >,
432 >,
433}
434
435pub struct EditorSnapshot {
436 pub mode: EditorMode,
437 show_gutter: bool,
438 pub display_snapshot: DisplaySnapshot,
439 pub placeholder_text: Option<Arc<str>>,
440 is_focused: bool,
441 scroll_anchor: ScrollAnchor,
442 ongoing_scroll: OngoingScroll,
443}
444
445pub struct GutterDimensions {
446 pub padding: Pixels,
447 pub width: Pixels,
448 pub margin: Pixels,
449}
450
451impl Default for GutterDimensions {
452 fn default() -> Self {
453 Self {
454 padding: Pixels::ZERO,
455 width: Pixels::ZERO,
456 margin: Pixels::ZERO,
457 }
458 }
459}
460
461#[derive(Debug)]
462pub struct RemoteSelection {
463 pub replica_id: ReplicaId,
464 pub selection: Selection<Anchor>,
465 pub cursor_shape: CursorShape,
466 pub peer_id: PeerId,
467 pub line_mode: bool,
468 pub participant_index: Option<ParticipantIndex>,
469 pub user_name: Option<SharedString>,
470}
471
472#[derive(Clone, Debug)]
473struct SelectionHistoryEntry {
474 selections: Arc<[Selection<Anchor>]>,
475 select_next_state: Option<SelectNextState>,
476 select_prev_state: Option<SelectNextState>,
477 add_selections_state: Option<AddSelectionsState>,
478}
479
480enum SelectionHistoryMode {
481 Normal,
482 Undoing,
483 Redoing,
484}
485
486#[derive(Clone, PartialEq, Eq, Hash)]
487struct HoveredCursor {
488 replica_id: u16,
489 selection_id: usize,
490}
491
492impl Default for SelectionHistoryMode {
493 fn default() -> Self {
494 Self::Normal
495 }
496}
497
498#[derive(Default)]
499struct SelectionHistory {
500 #[allow(clippy::type_complexity)]
501 selections_by_transaction:
502 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
503 mode: SelectionHistoryMode,
504 undo_stack: VecDeque<SelectionHistoryEntry>,
505 redo_stack: VecDeque<SelectionHistoryEntry>,
506}
507
508impl SelectionHistory {
509 fn insert_transaction(
510 &mut self,
511 transaction_id: TransactionId,
512 selections: Arc<[Selection<Anchor>]>,
513 ) {
514 self.selections_by_transaction
515 .insert(transaction_id, (selections, None));
516 }
517
518 #[allow(clippy::type_complexity)]
519 fn transaction(
520 &self,
521 transaction_id: TransactionId,
522 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
523 self.selections_by_transaction.get(&transaction_id)
524 }
525
526 #[allow(clippy::type_complexity)]
527 fn transaction_mut(
528 &mut self,
529 transaction_id: TransactionId,
530 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
531 self.selections_by_transaction.get_mut(&transaction_id)
532 }
533
534 fn push(&mut self, entry: SelectionHistoryEntry) {
535 if !entry.selections.is_empty() {
536 match self.mode {
537 SelectionHistoryMode::Normal => {
538 self.push_undo(entry);
539 self.redo_stack.clear();
540 }
541 SelectionHistoryMode::Undoing => self.push_redo(entry),
542 SelectionHistoryMode::Redoing => self.push_undo(entry),
543 }
544 }
545 }
546
547 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
548 if self
549 .undo_stack
550 .back()
551 .map_or(true, |e| e.selections != entry.selections)
552 {
553 self.undo_stack.push_back(entry);
554 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
555 self.undo_stack.pop_front();
556 }
557 }
558 }
559
560 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
561 if self
562 .redo_stack
563 .back()
564 .map_or(true, |e| e.selections != entry.selections)
565 {
566 self.redo_stack.push_back(entry);
567 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
568 self.redo_stack.pop_front();
569 }
570 }
571 }
572}
573
574#[derive(Clone, Debug)]
575struct AddSelectionsState {
576 above: bool,
577 stack: Vec<usize>,
578}
579
580#[derive(Clone)]
581struct SelectNextState {
582 query: AhoCorasick,
583 wordwise: bool,
584 done: bool,
585}
586
587impl std::fmt::Debug for SelectNextState {
588 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
589 f.debug_struct(std::any::type_name::<Self>())
590 .field("wordwise", &self.wordwise)
591 .field("done", &self.done)
592 .finish()
593 }
594}
595
596#[derive(Debug)]
597struct AutocloseRegion {
598 selection_id: usize,
599 range: Range<Anchor>,
600 pair: BracketPair,
601}
602
603#[derive(Debug)]
604struct SnippetState {
605 ranges: Vec<Vec<Range<Anchor>>>,
606 active_index: usize,
607}
608
609#[doc(hidden)]
610pub struct RenameState {
611 pub range: Range<Anchor>,
612 pub old_name: Arc<str>,
613 pub editor: View<Editor>,
614 block_id: BlockId,
615}
616
617struct InvalidationStack<T>(Vec<T>);
618
619enum ContextMenu {
620 Completions(CompletionsMenu),
621 CodeActions(CodeActionsMenu),
622}
623
624impl ContextMenu {
625 fn select_first(
626 &mut self,
627 project: Option<&Model<Project>>,
628 cx: &mut ViewContext<Editor>,
629 ) -> bool {
630 if self.visible() {
631 match self {
632 ContextMenu::Completions(menu) => menu.select_first(project, cx),
633 ContextMenu::CodeActions(menu) => menu.select_first(cx),
634 }
635 true
636 } else {
637 false
638 }
639 }
640
641 fn select_prev(
642 &mut self,
643 project: Option<&Model<Project>>,
644 cx: &mut ViewContext<Editor>,
645 ) -> bool {
646 if self.visible() {
647 match self {
648 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
649 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
650 }
651 true
652 } else {
653 false
654 }
655 }
656
657 fn select_next(
658 &mut self,
659 project: Option<&Model<Project>>,
660 cx: &mut ViewContext<Editor>,
661 ) -> bool {
662 if self.visible() {
663 match self {
664 ContextMenu::Completions(menu) => menu.select_next(project, cx),
665 ContextMenu::CodeActions(menu) => menu.select_next(cx),
666 }
667 true
668 } else {
669 false
670 }
671 }
672
673 fn select_last(
674 &mut self,
675 project: Option<&Model<Project>>,
676 cx: &mut ViewContext<Editor>,
677 ) -> bool {
678 if self.visible() {
679 match self {
680 ContextMenu::Completions(menu) => menu.select_last(project, cx),
681 ContextMenu::CodeActions(menu) => menu.select_last(cx),
682 }
683 true
684 } else {
685 false
686 }
687 }
688
689 fn visible(&self) -> bool {
690 match self {
691 ContextMenu::Completions(menu) => menu.visible(),
692 ContextMenu::CodeActions(menu) => menu.visible(),
693 }
694 }
695
696 fn render(
697 &self,
698 cursor_position: DisplayPoint,
699 style: &EditorStyle,
700 max_height: Pixels,
701 workspace: Option<WeakView<Workspace>>,
702 cx: &mut ViewContext<Editor>,
703 ) -> (DisplayPoint, AnyElement) {
704 match self {
705 ContextMenu::Completions(menu) => (
706 cursor_position,
707 menu.render(style, max_height, workspace, cx),
708 ),
709 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
710 }
711 }
712}
713
714#[derive(Clone)]
715struct CompletionsMenu {
716 id: CompletionId,
717 initial_position: Anchor,
718 buffer: Model<Buffer>,
719 completions: Arc<RwLock<Box<[Completion]>>>,
720 match_candidates: Arc<[StringMatchCandidate]>,
721 matches: Arc<[StringMatch]>,
722 selected_item: usize,
723 scroll_handle: UniformListScrollHandle,
724 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
725}
726
727impl CompletionsMenu {
728 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
729 self.selected_item = 0;
730 self.scroll_handle.scroll_to_item(self.selected_item);
731 self.attempt_resolve_selected_completion_documentation(project, cx);
732 cx.notify();
733 }
734
735 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
736 if self.selected_item > 0 {
737 self.selected_item -= 1;
738 } else {
739 self.selected_item = self.matches.len() - 1;
740 }
741 self.scroll_handle.scroll_to_item(self.selected_item);
742 self.attempt_resolve_selected_completion_documentation(project, cx);
743 cx.notify();
744 }
745
746 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
747 if self.selected_item + 1 < self.matches.len() {
748 self.selected_item += 1;
749 } else {
750 self.selected_item = 0;
751 }
752 self.scroll_handle.scroll_to_item(self.selected_item);
753 self.attempt_resolve_selected_completion_documentation(project, cx);
754 cx.notify();
755 }
756
757 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
758 self.selected_item = self.matches.len() - 1;
759 self.scroll_handle.scroll_to_item(self.selected_item);
760 self.attempt_resolve_selected_completion_documentation(project, cx);
761 cx.notify();
762 }
763
764 fn pre_resolve_completion_documentation(
765 completions: Arc<RwLock<Box<[Completion]>>>,
766 matches: Arc<[StringMatch]>,
767 editor: &Editor,
768 cx: &mut ViewContext<Editor>,
769 ) -> Task<()> {
770 let settings = EditorSettings::get_global(cx);
771 if !settings.show_completion_documentation {
772 return Task::ready(());
773 }
774
775 let Some(provider) = editor.completion_provider.as_ref() else {
776 return Task::ready(());
777 };
778
779 let resolve_task = provider.resolve_completions(
780 matches.iter().map(|m| m.candidate_id).collect(),
781 completions.clone(),
782 cx,
783 );
784
785 return cx.spawn(move |this, mut cx| async move {
786 if let Some(true) = resolve_task.await.log_err() {
787 this.update(&mut cx, |_, cx| cx.notify()).ok();
788 }
789 });
790 }
791
792 fn attempt_resolve_selected_completion_documentation(
793 &mut self,
794 project: Option<&Model<Project>>,
795 cx: &mut ViewContext<Editor>,
796 ) {
797 let settings = EditorSettings::get_global(cx);
798 if !settings.show_completion_documentation {
799 return;
800 }
801
802 let completion_index = self.matches[self.selected_item].candidate_id;
803 let Some(project) = project else {
804 return;
805 };
806
807 let resolve_task = project.update(cx, |project, cx| {
808 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
809 });
810
811 let delay_ms =
812 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
813 let delay = Duration::from_millis(delay_ms);
814
815 self.selected_completion_documentation_resolve_debounce
816 .lock()
817 .fire_new(delay, cx, |_, cx| {
818 cx.spawn(move |this, mut cx| async move {
819 if let Some(true) = resolve_task.await.log_err() {
820 this.update(&mut cx, |_, cx| cx.notify()).ok();
821 }
822 })
823 });
824 }
825
826 fn visible(&self) -> bool {
827 !self.matches.is_empty()
828 }
829
830 fn render(
831 &self,
832 style: &EditorStyle,
833 max_height: Pixels,
834 workspace: Option<WeakView<Workspace>>,
835 cx: &mut ViewContext<Editor>,
836 ) -> AnyElement {
837 let settings = EditorSettings::get_global(cx);
838 let show_completion_documentation = settings.show_completion_documentation;
839
840 let widest_completion_ix = self
841 .matches
842 .iter()
843 .enumerate()
844 .max_by_key(|(_, mat)| {
845 let completions = self.completions.read();
846 let completion = &completions[mat.candidate_id];
847 let documentation = &completion.documentation;
848
849 let mut len = completion.label.text.chars().count();
850 if let Some(Documentation::SingleLine(text)) = documentation {
851 if show_completion_documentation {
852 len += text.chars().count();
853 }
854 }
855
856 len
857 })
858 .map(|(ix, _)| ix);
859
860 let completions = self.completions.clone();
861 let matches = self.matches.clone();
862 let selected_item = self.selected_item;
863 let style = style.clone();
864
865 let multiline_docs = if show_completion_documentation {
866 let mat = &self.matches[selected_item];
867 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
868 Some(Documentation::MultiLinePlainText(text)) => {
869 Some(div().child(SharedString::from(text.clone())))
870 }
871 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
872 Some(div().child(render_parsed_markdown(
873 "completions_markdown",
874 parsed,
875 &style,
876 workspace,
877 cx,
878 )))
879 }
880 _ => None,
881 };
882 multiline_docs.map(|div| {
883 div.id("multiline_docs")
884 .max_h(max_height)
885 .flex_1()
886 .px_1p5()
887 .py_1()
888 .min_w(px(260.))
889 .max_w(px(640.))
890 .w(px(500.))
891 .overflow_y_scroll()
892 // Prevent a mouse down on documentation from being propagated to the editor,
893 // because that would move the cursor.
894 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
895 })
896 } else {
897 None
898 };
899
900 let list = uniform_list(
901 cx.view().clone(),
902 "completions",
903 matches.len(),
904 move |_editor, range, cx| {
905 let start_ix = range.start;
906 let completions_guard = completions.read();
907
908 matches[range]
909 .iter()
910 .enumerate()
911 .map(|(ix, mat)| {
912 let item_ix = start_ix + ix;
913 let candidate_id = mat.candidate_id;
914 let completion = &completions_guard[candidate_id];
915
916 let documentation = if show_completion_documentation {
917 &completion.documentation
918 } else {
919 &None
920 };
921
922 let highlights = gpui::combine_highlights(
923 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
924 styled_runs_for_code_label(&completion.label, &style.syntax).map(
925 |(range, mut highlight)| {
926 // Ignore font weight for syntax highlighting, as we'll use it
927 // for fuzzy matches.
928 highlight.font_weight = None;
929 (range, highlight)
930 },
931 ),
932 );
933 let completion_label = StyledText::new(completion.label.text.clone())
934 .with_highlights(&style.text, highlights);
935 let documentation_label =
936 if let Some(Documentation::SingleLine(text)) = documentation {
937 if text.trim().is_empty() {
938 None
939 } else {
940 Some(
941 h_flex().ml_4().child(
942 Label::new(text.clone())
943 .size(LabelSize::Small)
944 .color(Color::Muted),
945 ),
946 )
947 }
948 } else {
949 None
950 };
951
952 div().min_w(px(220.)).max_w(px(540.)).child(
953 ListItem::new(mat.candidate_id)
954 .inset(true)
955 .selected(item_ix == selected_item)
956 .on_click(cx.listener(move |editor, _event, cx| {
957 cx.stop_propagation();
958 editor
959 .confirm_completion(
960 &ConfirmCompletion {
961 item_ix: Some(item_ix),
962 },
963 cx,
964 )
965 .map(|task| task.detach_and_log_err(cx));
966 }))
967 .child(h_flex().overflow_hidden().child(completion_label))
968 .end_slot::<Div>(documentation_label),
969 )
970 })
971 .collect()
972 },
973 )
974 .max_h(max_height)
975 .track_scroll(self.scroll_handle.clone())
976 .with_width_from_item(widest_completion_ix);
977
978 Popover::new()
979 .child(list)
980 .when_some(multiline_docs, |popover, multiline_docs| {
981 popover.aside(multiline_docs)
982 })
983 .into_any_element()
984 }
985
986 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
987 let mut matches = if let Some(query) = query {
988 fuzzy::match_strings(
989 &self.match_candidates,
990 query,
991 query.chars().any(|c| c.is_uppercase()),
992 100,
993 &Default::default(),
994 executor,
995 )
996 .await
997 } else {
998 self.match_candidates
999 .iter()
1000 .enumerate()
1001 .map(|(candidate_id, candidate)| StringMatch {
1002 candidate_id,
1003 score: Default::default(),
1004 positions: Default::default(),
1005 string: candidate.string.clone(),
1006 })
1007 .collect()
1008 };
1009
1010 // Remove all candidates where the query's start does not match the start of any word in the candidate
1011 if let Some(query) = query {
1012 if let Some(query_start) = query.chars().next() {
1013 matches.retain(|string_match| {
1014 split_words(&string_match.string).any(|word| {
1015 // Check that the first codepoint of the word as lowercase matches the first
1016 // codepoint of the query as lowercase
1017 word.chars()
1018 .flat_map(|codepoint| codepoint.to_lowercase())
1019 .zip(query_start.to_lowercase())
1020 .all(|(word_cp, query_cp)| word_cp == query_cp)
1021 })
1022 });
1023 }
1024 }
1025
1026 let completions = self.completions.read();
1027 matches.sort_unstable_by_key(|mat| {
1028 // We do want to strike a balance here between what the language server tells us
1029 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1030 // `Creat` and there is a local variable called `CreateComponent`).
1031 // So what we do is: we bucket all matches into two buckets
1032 // - Strong matches
1033 // - Weak matches
1034 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1035 // and the Weak matches are the rest.
1036 //
1037 // For the strong matches, we sort by the language-servers score first and for the weak
1038 // matches, we prefer our fuzzy finder first.
1039 //
1040 // The thinking behind that: it's useless to take the sort_text the language-server gives
1041 // us into account when it's obviously a bad match.
1042
1043 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1044 enum MatchScore<'a> {
1045 Strong {
1046 sort_text: Option<&'a str>,
1047 score: Reverse<OrderedFloat<f64>>,
1048 sort_key: (usize, &'a str),
1049 },
1050 Weak {
1051 score: Reverse<OrderedFloat<f64>>,
1052 sort_text: Option<&'a str>,
1053 sort_key: (usize, &'a str),
1054 },
1055 }
1056
1057 let completion = &completions[mat.candidate_id];
1058 let sort_key = completion.sort_key();
1059 let sort_text = completion.lsp_completion.sort_text.as_deref();
1060 let score = Reverse(OrderedFloat(mat.score));
1061
1062 if mat.score >= 0.2 {
1063 MatchScore::Strong {
1064 sort_text,
1065 score,
1066 sort_key,
1067 }
1068 } else {
1069 MatchScore::Weak {
1070 score,
1071 sort_text,
1072 sort_key,
1073 }
1074 }
1075 });
1076
1077 for mat in &mut matches {
1078 let completion = &completions[mat.candidate_id];
1079 mat.string = completion.label.text.clone();
1080 for position in &mut mat.positions {
1081 *position += completion.label.filter_range.start;
1082 }
1083 }
1084 drop(completions);
1085
1086 self.matches = matches.into();
1087 self.selected_item = 0;
1088 }
1089}
1090
1091#[derive(Clone)]
1092struct CodeActionsMenu {
1093 actions: Arc<[CodeAction]>,
1094 buffer: Model<Buffer>,
1095 selected_item: usize,
1096 scroll_handle: UniformListScrollHandle,
1097 deployed_from_indicator: bool,
1098}
1099
1100impl CodeActionsMenu {
1101 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1102 self.selected_item = 0;
1103 self.scroll_handle.scroll_to_item(self.selected_item);
1104 cx.notify()
1105 }
1106
1107 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1108 if self.selected_item > 0 {
1109 self.selected_item -= 1;
1110 } else {
1111 self.selected_item = self.actions.len() - 1;
1112 }
1113 self.scroll_handle.scroll_to_item(self.selected_item);
1114 cx.notify();
1115 }
1116
1117 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1118 if self.selected_item + 1 < self.actions.len() {
1119 self.selected_item += 1;
1120 } else {
1121 self.selected_item = 0;
1122 }
1123 self.scroll_handle.scroll_to_item(self.selected_item);
1124 cx.notify();
1125 }
1126
1127 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1128 self.selected_item = self.actions.len() - 1;
1129 self.scroll_handle.scroll_to_item(self.selected_item);
1130 cx.notify()
1131 }
1132
1133 fn visible(&self) -> bool {
1134 !self.actions.is_empty()
1135 }
1136
1137 fn render(
1138 &self,
1139 mut cursor_position: DisplayPoint,
1140 _style: &EditorStyle,
1141 max_height: Pixels,
1142 cx: &mut ViewContext<Editor>,
1143 ) -> (DisplayPoint, AnyElement) {
1144 let actions = self.actions.clone();
1145 let selected_item = self.selected_item;
1146
1147 let element = uniform_list(
1148 cx.view().clone(),
1149 "code_actions_menu",
1150 self.actions.len(),
1151 move |_this, range, cx| {
1152 actions[range.clone()]
1153 .iter()
1154 .enumerate()
1155 .map(|(ix, action)| {
1156 let item_ix = range.start + ix;
1157 let selected = selected_item == item_ix;
1158 let colors = cx.theme().colors();
1159 div()
1160 .px_2()
1161 .text_color(colors.text)
1162 .when(selected, |style| {
1163 style
1164 .bg(colors.element_active)
1165 .text_color(colors.text_accent)
1166 })
1167 .hover(|style| {
1168 style
1169 .bg(colors.element_hover)
1170 .text_color(colors.text_accent)
1171 })
1172 .on_mouse_down(
1173 MouseButton::Left,
1174 cx.listener(move |editor, _, cx| {
1175 cx.stop_propagation();
1176 editor
1177 .confirm_code_action(
1178 &ConfirmCodeAction {
1179 item_ix: Some(item_ix),
1180 },
1181 cx,
1182 )
1183 .map(|task| task.detach_and_log_err(cx));
1184 }),
1185 )
1186 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1187 .child(SharedString::from(action.lsp_action.title.clone()))
1188 })
1189 .collect()
1190 },
1191 )
1192 .elevation_1(cx)
1193 .px_2()
1194 .py_1()
1195 .max_h(max_height)
1196 .track_scroll(self.scroll_handle.clone())
1197 .with_width_from_item(
1198 self.actions
1199 .iter()
1200 .enumerate()
1201 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1202 .map(|(ix, _)| ix),
1203 )
1204 .into_any_element();
1205
1206 if self.deployed_from_indicator {
1207 *cursor_position.column_mut() = 0;
1208 }
1209
1210 (cursor_position, element)
1211 }
1212}
1213
1214pub(crate) struct CopilotState {
1215 excerpt_id: Option<ExcerptId>,
1216 pending_refresh: Task<Option<()>>,
1217 pending_cycling_refresh: Task<Option<()>>,
1218 cycled: bool,
1219 completions: Vec<copilot::Completion>,
1220 active_completion_index: usize,
1221 suggestion: Option<Inlay>,
1222}
1223
1224impl Default for CopilotState {
1225 fn default() -> Self {
1226 Self {
1227 excerpt_id: None,
1228 pending_cycling_refresh: Task::ready(Some(())),
1229 pending_refresh: Task::ready(Some(())),
1230 completions: Default::default(),
1231 active_completion_index: 0,
1232 cycled: false,
1233 suggestion: None,
1234 }
1235 }
1236}
1237
1238impl CopilotState {
1239 fn active_completion(&self) -> Option<&copilot::Completion> {
1240 self.completions.get(self.active_completion_index)
1241 }
1242
1243 fn text_for_active_completion(
1244 &self,
1245 cursor: Anchor,
1246 buffer: &MultiBufferSnapshot,
1247 ) -> Option<&str> {
1248 use language::ToOffset as _;
1249
1250 let completion = self.active_completion()?;
1251 let excerpt_id = self.excerpt_id?;
1252 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1253 if excerpt_id != cursor.excerpt_id
1254 || !completion.range.start.is_valid(completion_buffer)
1255 || !completion.range.end.is_valid(completion_buffer)
1256 {
1257 return None;
1258 }
1259
1260 let mut completion_range = completion.range.to_offset(&completion_buffer);
1261 let prefix_len = Self::common_prefix(
1262 completion_buffer.chars_for_range(completion_range.clone()),
1263 completion.text.chars(),
1264 );
1265 completion_range.start += prefix_len;
1266 let suffix_len = Self::common_prefix(
1267 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1268 completion.text[prefix_len..].chars().rev(),
1269 );
1270 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1271
1272 if completion_range.is_empty()
1273 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1274 {
1275 let completion_text = &completion.text[prefix_len..completion.text.len() - suffix_len];
1276 if completion_text.trim().is_empty() {
1277 None
1278 } else {
1279 Some(completion_text)
1280 }
1281 } else {
1282 None
1283 }
1284 }
1285
1286 fn cycle_completions(&mut self, direction: Direction) {
1287 match direction {
1288 Direction::Prev => {
1289 self.active_completion_index = if self.active_completion_index == 0 {
1290 self.completions.len().saturating_sub(1)
1291 } else {
1292 self.active_completion_index - 1
1293 };
1294 }
1295 Direction::Next => {
1296 if self.completions.len() == 0 {
1297 self.active_completion_index = 0
1298 } else {
1299 self.active_completion_index =
1300 (self.active_completion_index + 1) % self.completions.len();
1301 }
1302 }
1303 }
1304 }
1305
1306 fn push_completion(&mut self, new_completion: copilot::Completion) {
1307 for completion in &self.completions {
1308 if completion.text == new_completion.text && completion.range == new_completion.range {
1309 return;
1310 }
1311 }
1312 self.completions.push(new_completion);
1313 }
1314
1315 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1316 a.zip(b)
1317 .take_while(|(a, b)| a == b)
1318 .map(|(a, _)| a.len_utf8())
1319 .sum()
1320 }
1321}
1322
1323#[derive(Debug)]
1324struct ActiveDiagnosticGroup {
1325 primary_range: Range<Anchor>,
1326 primary_message: String,
1327 blocks: HashMap<BlockId, Diagnostic>,
1328 is_valid: bool,
1329}
1330
1331#[derive(Serialize, Deserialize)]
1332pub struct ClipboardSelection {
1333 pub len: usize,
1334 pub is_entire_line: bool,
1335 pub first_line_indent: u32,
1336}
1337
1338#[derive(Debug)]
1339pub(crate) struct NavigationData {
1340 cursor_anchor: Anchor,
1341 cursor_position: Point,
1342 scroll_anchor: ScrollAnchor,
1343 scroll_top_row: u32,
1344}
1345
1346enum GotoDefinitionKind {
1347 Symbol,
1348 Type,
1349}
1350
1351#[derive(Debug, Clone)]
1352enum InlayHintRefreshReason {
1353 Toggle(bool),
1354 SettingsChange(InlayHintSettings),
1355 NewLinesShown,
1356 BufferEdited(HashSet<Arc<Language>>),
1357 RefreshRequested,
1358 ExcerptsRemoved(Vec<ExcerptId>),
1359}
1360impl InlayHintRefreshReason {
1361 fn description(&self) -> &'static str {
1362 match self {
1363 Self::Toggle(_) => "toggle",
1364 Self::SettingsChange(_) => "settings change",
1365 Self::NewLinesShown => "new lines shown",
1366 Self::BufferEdited(_) => "buffer edited",
1367 Self::RefreshRequested => "refresh requested",
1368 Self::ExcerptsRemoved(_) => "excerpts removed",
1369 }
1370 }
1371}
1372
1373impl Editor {
1374 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1375 let buffer = cx.new_model(|cx| {
1376 Buffer::new(
1377 0,
1378 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1379 String::new(),
1380 )
1381 });
1382 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1383 Self::new(EditorMode::SingleLine, buffer, None, cx)
1384 }
1385
1386 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1387 let buffer = cx.new_model(|cx| {
1388 Buffer::new(
1389 0,
1390 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1391 String::new(),
1392 )
1393 });
1394 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1395 Self::new(EditorMode::Full, buffer, None, cx)
1396 }
1397
1398 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1399 let buffer = cx.new_model(|cx| {
1400 Buffer::new(
1401 0,
1402 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1403 String::new(),
1404 )
1405 });
1406 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1407 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1408 }
1409
1410 pub fn for_buffer(
1411 buffer: Model<Buffer>,
1412 project: Option<Model<Project>>,
1413 cx: &mut ViewContext<Self>,
1414 ) -> Self {
1415 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1416 Self::new(EditorMode::Full, buffer, project, cx)
1417 }
1418
1419 pub fn for_multibuffer(
1420 buffer: Model<MultiBuffer>,
1421 project: Option<Model<Project>>,
1422 cx: &mut ViewContext<Self>,
1423 ) -> Self {
1424 Self::new(EditorMode::Full, buffer, project, cx)
1425 }
1426
1427 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1428 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1429 self.display_map.update(cx, |display_map, cx| {
1430 let snapshot = display_map.snapshot(cx);
1431 clone.display_map.update(cx, |display_map, cx| {
1432 display_map.set_state(&snapshot, cx);
1433 });
1434 });
1435 clone.selections.clone_state(&self.selections);
1436 clone.scroll_manager.clone_state(&self.scroll_manager);
1437 clone.searchable = self.searchable;
1438 clone
1439 }
1440
1441 fn new(
1442 mode: EditorMode,
1443 buffer: Model<MultiBuffer>,
1444 project: Option<Model<Project>>,
1445 cx: &mut ViewContext<Self>,
1446 ) -> Self {
1447 let style = cx.text_style();
1448 let font_size = style.font_size.to_pixels(cx.rem_size());
1449 let display_map = cx.new_model(|cx| {
1450 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1451 });
1452
1453 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1454
1455 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1456
1457 let soft_wrap_mode_override =
1458 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1459
1460 let mut project_subscriptions = Vec::new();
1461 if mode == EditorMode::Full {
1462 if let Some(project) = project.as_ref() {
1463 if buffer.read(cx).is_singleton() {
1464 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1465 cx.emit(EditorEvent::TitleChanged);
1466 }));
1467 }
1468 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1469 if let project::Event::RefreshInlayHints = event {
1470 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1471 };
1472 }));
1473 }
1474 }
1475
1476 let inlay_hint_settings = inlay_hint_settings(
1477 selections.newest_anchor().head(),
1478 &buffer.read(cx).snapshot(cx),
1479 cx,
1480 );
1481
1482 let focus_handle = cx.focus_handle();
1483 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1484 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1485
1486 let mut this = Self {
1487 handle: cx.view().downgrade(),
1488 focus_handle,
1489 buffer: buffer.clone(),
1490 display_map: display_map.clone(),
1491 selections,
1492 scroll_manager: ScrollManager::new(cx),
1493 columnar_selection_tail: None,
1494 add_selections_state: None,
1495 select_next_state: None,
1496 select_prev_state: None,
1497 selection_history: Default::default(),
1498 autoclose_regions: Default::default(),
1499 snippet_stack: Default::default(),
1500 select_larger_syntax_node_stack: Vec::new(),
1501 ime_transaction: Default::default(),
1502 active_diagnostics: None,
1503 soft_wrap_mode_override,
1504 completion_provider: project.clone().map(|project| Box::new(project) as _),
1505 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1506 project,
1507 blink_manager: blink_manager.clone(),
1508 show_local_selections: true,
1509 mode,
1510 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1511 show_gutter: mode == EditorMode::Full,
1512 show_wrap_guides: None,
1513 placeholder_text: None,
1514 highlighted_rows: None,
1515 background_highlights: Default::default(),
1516 inlay_background_highlights: Default::default(),
1517 nav_history: None,
1518 context_menu: RwLock::new(None),
1519 mouse_context_menu: None,
1520 completion_tasks: Default::default(),
1521 next_completion_id: 0,
1522 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1523 next_inlay_id: 0,
1524 available_code_actions: Default::default(),
1525 code_actions_task: Default::default(),
1526 document_highlights_task: Default::default(),
1527 pending_rename: Default::default(),
1528 searchable: true,
1529 cursor_shape: Default::default(),
1530 autoindent_mode: Some(AutoindentMode::EachLine),
1531 collapse_matches: false,
1532 workspace: None,
1533 keymap_context_layers: Default::default(),
1534 input_enabled: true,
1535 use_modal_editing: mode == EditorMode::Full,
1536 read_only: false,
1537 use_autoclose: true,
1538 leader_peer_id: None,
1539 remote_id: None,
1540 hover_state: Default::default(),
1541 hovered_link_state: Default::default(),
1542 copilot_state: Default::default(),
1543 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1544 gutter_hovered: false,
1545 pixel_position_of_newest_cursor: None,
1546 gutter_width: Default::default(),
1547 style: None,
1548 show_cursor_names: false,
1549 hovered_cursors: Default::default(),
1550 editor_actions: Default::default(),
1551 show_copilot_suggestions: mode == EditorMode::Full,
1552 custom_context_menu: None,
1553 _subscriptions: vec![
1554 cx.observe(&buffer, Self::on_buffer_changed),
1555 cx.subscribe(&buffer, Self::on_buffer_event),
1556 cx.observe(&display_map, Self::on_display_map_changed),
1557 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1558 cx.observe_global::<SettingsStore>(Self::settings_changed),
1559 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1560 cx.observe_window_activation(|editor, cx| {
1561 let active = cx.is_window_active();
1562 editor.blink_manager.update(cx, |blink_manager, cx| {
1563 if active {
1564 blink_manager.enable(cx);
1565 } else {
1566 blink_manager.show_cursor(cx);
1567 blink_manager.disable(cx);
1568 }
1569 });
1570 }),
1571 ],
1572 };
1573
1574 this._subscriptions.extend(project_subscriptions);
1575
1576 this.end_selection(cx);
1577 this.scroll_manager.show_scrollbar(cx);
1578
1579 if mode == EditorMode::Full {
1580 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1581 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1582 }
1583
1584 this.report_editor_event("open", None, cx);
1585 this
1586 }
1587
1588 fn key_context(&self, cx: &AppContext) -> KeyContext {
1589 let mut key_context = KeyContext::default();
1590 key_context.add("Editor");
1591 let mode = match self.mode {
1592 EditorMode::SingleLine => "single_line",
1593 EditorMode::AutoHeight { .. } => "auto_height",
1594 EditorMode::Full => "full",
1595 };
1596 key_context.set("mode", mode);
1597 if self.pending_rename.is_some() {
1598 key_context.add("renaming");
1599 }
1600 if self.context_menu_visible() {
1601 match self.context_menu.read().as_ref() {
1602 Some(ContextMenu::Completions(_)) => {
1603 key_context.add("menu");
1604 key_context.add("showing_completions")
1605 }
1606 Some(ContextMenu::CodeActions(_)) => {
1607 key_context.add("menu");
1608 key_context.add("showing_code_actions")
1609 }
1610 None => {}
1611 }
1612 }
1613
1614 for layer in self.keymap_context_layers.values() {
1615 key_context.extend(layer);
1616 }
1617
1618 if let Some(extension) = self
1619 .buffer
1620 .read(cx)
1621 .as_singleton()
1622 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1623 {
1624 key_context.set("extension", extension.to_string());
1625 }
1626
1627 key_context
1628 }
1629
1630 pub fn new_file(
1631 workspace: &mut Workspace,
1632 _: &workspace::NewFile,
1633 cx: &mut ViewContext<Workspace>,
1634 ) {
1635 let project = workspace.project().clone();
1636 if project.read(cx).is_remote() {
1637 cx.propagate();
1638 } else if let Some(buffer) = project
1639 .update(cx, |project, cx| project.create_buffer("", None, cx))
1640 .log_err()
1641 {
1642 workspace.add_item(
1643 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1644 cx,
1645 );
1646 }
1647 }
1648
1649 pub fn new_file_in_direction(
1650 workspace: &mut Workspace,
1651 action: &workspace::NewFileInDirection,
1652 cx: &mut ViewContext<Workspace>,
1653 ) {
1654 let project = workspace.project().clone();
1655 if project.read(cx).is_remote() {
1656 cx.propagate();
1657 } else if let Some(buffer) = project
1658 .update(cx, |project, cx| project.create_buffer("", None, cx))
1659 .log_err()
1660 {
1661 workspace.split_item(
1662 action.0,
1663 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1664 cx,
1665 );
1666 }
1667 }
1668
1669 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1670 self.buffer.read(cx).replica_id()
1671 }
1672
1673 pub fn leader_peer_id(&self) -> Option<PeerId> {
1674 self.leader_peer_id
1675 }
1676
1677 pub fn buffer(&self) -> &Model<MultiBuffer> {
1678 &self.buffer
1679 }
1680
1681 pub fn workspace(&self) -> Option<View<Workspace>> {
1682 self.workspace.as_ref()?.0.upgrade()
1683 }
1684
1685 pub fn pane(&self, cx: &AppContext) -> Option<View<Pane>> {
1686 self.workspace()?.read(cx).pane_for(&self.handle.upgrade()?)
1687 }
1688
1689 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1690 self.buffer().read(cx).title(cx)
1691 }
1692
1693 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1694 EditorSnapshot {
1695 mode: self.mode,
1696 show_gutter: self.show_gutter,
1697 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1698 scroll_anchor: self.scroll_manager.anchor(),
1699 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1700 placeholder_text: self.placeholder_text.clone(),
1701 is_focused: self.focus_handle.is_focused(cx),
1702 }
1703 }
1704
1705 pub fn language_at<'a, T: ToOffset>(
1706 &self,
1707 point: T,
1708 cx: &'a AppContext,
1709 ) -> Option<Arc<Language>> {
1710 self.buffer.read(cx).language_at(point, cx)
1711 }
1712
1713 pub fn file_at<'a, T: ToOffset>(
1714 &self,
1715 point: T,
1716 cx: &'a AppContext,
1717 ) -> Option<Arc<dyn language::File>> {
1718 self.buffer.read(cx).read(cx).file_at(point).cloned()
1719 }
1720
1721 pub fn active_excerpt(
1722 &self,
1723 cx: &AppContext,
1724 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1725 self.buffer
1726 .read(cx)
1727 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1728 }
1729
1730 pub fn mode(&self) -> EditorMode {
1731 self.mode
1732 }
1733
1734 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1735 self.collaboration_hub.as_deref()
1736 }
1737
1738 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1739 self.collaboration_hub = Some(hub);
1740 }
1741
1742 pub fn set_custom_context_menu(
1743 &mut self,
1744 f: impl 'static
1745 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1746 ) {
1747 self.custom_context_menu = Some(Box::new(f))
1748 }
1749
1750 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1751 self.completion_provider = Some(hub);
1752 }
1753
1754 pub fn placeholder_text(&self) -> Option<&str> {
1755 self.placeholder_text.as_deref()
1756 }
1757
1758 pub fn set_placeholder_text(
1759 &mut self,
1760 placeholder_text: impl Into<Arc<str>>,
1761 cx: &mut ViewContext<Self>,
1762 ) {
1763 let placeholder_text = Some(placeholder_text.into());
1764 if self.placeholder_text != placeholder_text {
1765 self.placeholder_text = placeholder_text;
1766 cx.notify();
1767 }
1768 }
1769
1770 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1771 self.cursor_shape = cursor_shape;
1772 cx.notify();
1773 }
1774
1775 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1776 self.collapse_matches = collapse_matches;
1777 }
1778
1779 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1780 if self.collapse_matches {
1781 return range.start..range.start;
1782 }
1783 range.clone()
1784 }
1785
1786 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1787 if self.display_map.read(cx).clip_at_line_ends != clip {
1788 self.display_map
1789 .update(cx, |map, _| map.clip_at_line_ends = clip);
1790 }
1791 }
1792
1793 pub fn set_keymap_context_layer<Tag: 'static>(
1794 &mut self,
1795 context: KeyContext,
1796 cx: &mut ViewContext<Self>,
1797 ) {
1798 self.keymap_context_layers
1799 .insert(TypeId::of::<Tag>(), context);
1800 cx.notify();
1801 }
1802
1803 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1804 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1805 cx.notify();
1806 }
1807
1808 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1809 self.input_enabled = input_enabled;
1810 }
1811
1812 pub fn set_autoindent(&mut self, autoindent: bool) {
1813 if autoindent {
1814 self.autoindent_mode = Some(AutoindentMode::EachLine);
1815 } else {
1816 self.autoindent_mode = None;
1817 }
1818 }
1819
1820 pub fn read_only(&self, cx: &AppContext) -> bool {
1821 self.read_only || self.buffer.read(cx).read_only()
1822 }
1823
1824 pub fn set_read_only(&mut self, read_only: bool) {
1825 self.read_only = read_only;
1826 }
1827
1828 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1829 self.use_autoclose = autoclose;
1830 }
1831
1832 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1833 self.show_copilot_suggestions = show_copilot_suggestions;
1834 }
1835
1836 pub fn set_use_modal_editing(&mut self, to: bool) {
1837 self.use_modal_editing = to;
1838 }
1839
1840 pub fn use_modal_editing(&self) -> bool {
1841 self.use_modal_editing
1842 }
1843
1844 fn selections_did_change(
1845 &mut self,
1846 local: bool,
1847 old_cursor_position: &Anchor,
1848 cx: &mut ViewContext<Self>,
1849 ) {
1850 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1851 self.buffer.update(cx, |buffer, cx| {
1852 buffer.set_active_selections(
1853 &self.selections.disjoint_anchors(),
1854 self.selections.line_mode,
1855 self.cursor_shape,
1856 cx,
1857 )
1858 });
1859 }
1860
1861 let display_map = self
1862 .display_map
1863 .update(cx, |display_map, cx| display_map.snapshot(cx));
1864 let buffer = &display_map.buffer_snapshot;
1865 self.add_selections_state = None;
1866 self.select_next_state = None;
1867 self.select_prev_state = None;
1868 self.select_larger_syntax_node_stack.clear();
1869 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1870 self.snippet_stack
1871 .invalidate(&self.selections.disjoint_anchors(), buffer);
1872 self.take_rename(false, cx);
1873
1874 let new_cursor_position = self.selections.newest_anchor().head();
1875
1876 self.push_to_nav_history(
1877 old_cursor_position.clone(),
1878 Some(new_cursor_position.to_point(buffer)),
1879 cx,
1880 );
1881
1882 if local {
1883 let new_cursor_position = self.selections.newest_anchor().head();
1884 let mut context_menu = self.context_menu.write();
1885 let completion_menu = match context_menu.as_ref() {
1886 Some(ContextMenu::Completions(menu)) => Some(menu),
1887
1888 _ => {
1889 *context_menu = None;
1890 None
1891 }
1892 };
1893
1894 if let Some(completion_menu) = completion_menu {
1895 let cursor_position = new_cursor_position.to_offset(buffer);
1896 let (word_range, kind) =
1897 buffer.surrounding_word(completion_menu.initial_position.clone());
1898 if kind == Some(CharKind::Word)
1899 && word_range.to_inclusive().contains(&cursor_position)
1900 {
1901 let mut completion_menu = completion_menu.clone();
1902 drop(context_menu);
1903
1904 let query = Self::completion_query(buffer, cursor_position);
1905 cx.spawn(move |this, mut cx| async move {
1906 completion_menu
1907 .filter(query.as_deref(), cx.background_executor().clone())
1908 .await;
1909
1910 this.update(&mut cx, |this, cx| {
1911 let mut context_menu = this.context_menu.write();
1912 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1913 return;
1914 };
1915
1916 if menu.id > completion_menu.id {
1917 return;
1918 }
1919
1920 *context_menu = Some(ContextMenu::Completions(completion_menu));
1921 drop(context_menu);
1922 cx.notify();
1923 })
1924 })
1925 .detach();
1926
1927 self.show_completions(&ShowCompletions, cx);
1928 } else {
1929 drop(context_menu);
1930 self.hide_context_menu(cx);
1931 }
1932 } else {
1933 drop(context_menu);
1934 }
1935
1936 hide_hover(self, cx);
1937
1938 if old_cursor_position.to_display_point(&display_map).row()
1939 != new_cursor_position.to_display_point(&display_map).row()
1940 {
1941 self.available_code_actions.take();
1942 }
1943 self.refresh_code_actions(cx);
1944 self.refresh_document_highlights(cx);
1945 refresh_matching_bracket_highlights(self, cx);
1946 self.discard_copilot_suggestion(cx);
1947 }
1948
1949 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1950 cx.emit(EditorEvent::SelectionsChanged { local });
1951
1952 if self.selections.disjoint_anchors().len() == 1 {
1953 cx.emit(SearchEvent::ActiveMatchChanged)
1954 }
1955
1956 cx.notify();
1957 }
1958
1959 pub fn change_selections<R>(
1960 &mut self,
1961 autoscroll: Option<Autoscroll>,
1962 cx: &mut ViewContext<Self>,
1963 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1964 ) -> R {
1965 let old_cursor_position = self.selections.newest_anchor().head();
1966 self.push_to_selection_history();
1967
1968 let (changed, result) = self.selections.change_with(cx, change);
1969
1970 if changed {
1971 if let Some(autoscroll) = autoscroll {
1972 self.request_autoscroll(autoscroll, cx);
1973 }
1974 self.selections_did_change(true, &old_cursor_position, cx);
1975 }
1976
1977 result
1978 }
1979
1980 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1981 where
1982 I: IntoIterator<Item = (Range<S>, T)>,
1983 S: ToOffset,
1984 T: Into<Arc<str>>,
1985 {
1986 if self.read_only(cx) {
1987 return;
1988 }
1989
1990 self.buffer
1991 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1992 }
1993
1994 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1995 where
1996 I: IntoIterator<Item = (Range<S>, T)>,
1997 S: ToOffset,
1998 T: Into<Arc<str>>,
1999 {
2000 if self.read_only(cx) {
2001 return;
2002 }
2003
2004 self.buffer.update(cx, |buffer, cx| {
2005 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2006 });
2007 }
2008
2009 pub fn edit_with_block_indent<I, S, T>(
2010 &mut self,
2011 edits: I,
2012 original_indent_columns: Vec<u32>,
2013 cx: &mut ViewContext<Self>,
2014 ) where
2015 I: IntoIterator<Item = (Range<S>, T)>,
2016 S: ToOffset,
2017 T: Into<Arc<str>>,
2018 {
2019 if self.read_only(cx) {
2020 return;
2021 }
2022
2023 self.buffer.update(cx, |buffer, cx| {
2024 buffer.edit(
2025 edits,
2026 Some(AutoindentMode::Block {
2027 original_indent_columns,
2028 }),
2029 cx,
2030 )
2031 });
2032 }
2033
2034 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2035 self.hide_context_menu(cx);
2036
2037 match phase {
2038 SelectPhase::Begin {
2039 position,
2040 add,
2041 click_count,
2042 } => self.begin_selection(position, add, click_count, cx),
2043 SelectPhase::BeginColumnar {
2044 position,
2045 goal_column,
2046 } => self.begin_columnar_selection(position, goal_column, cx),
2047 SelectPhase::Extend {
2048 position,
2049 click_count,
2050 } => self.extend_selection(position, click_count, cx),
2051 SelectPhase::Update {
2052 position,
2053 goal_column,
2054 scroll_delta,
2055 } => self.update_selection(position, goal_column, scroll_delta, cx),
2056 SelectPhase::End => self.end_selection(cx),
2057 }
2058 }
2059
2060 fn extend_selection(
2061 &mut self,
2062 position: DisplayPoint,
2063 click_count: usize,
2064 cx: &mut ViewContext<Self>,
2065 ) {
2066 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2067 let tail = self.selections.newest::<usize>(cx).tail();
2068 self.begin_selection(position, false, click_count, cx);
2069
2070 let position = position.to_offset(&display_map, Bias::Left);
2071 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2072
2073 let mut pending_selection = self
2074 .selections
2075 .pending_anchor()
2076 .expect("extend_selection not called with pending selection");
2077 if position >= tail {
2078 pending_selection.start = tail_anchor;
2079 } else {
2080 pending_selection.end = tail_anchor;
2081 pending_selection.reversed = true;
2082 }
2083
2084 let mut pending_mode = self.selections.pending_mode().unwrap();
2085 match &mut pending_mode {
2086 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2087 _ => {}
2088 }
2089
2090 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2091 s.set_pending(pending_selection, pending_mode)
2092 });
2093 }
2094
2095 fn begin_selection(
2096 &mut self,
2097 position: DisplayPoint,
2098 add: bool,
2099 click_count: usize,
2100 cx: &mut ViewContext<Self>,
2101 ) {
2102 if !self.focus_handle.is_focused(cx) {
2103 cx.focus(&self.focus_handle);
2104 }
2105
2106 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2107 let buffer = &display_map.buffer_snapshot;
2108 let newest_selection = self.selections.newest_anchor().clone();
2109 let position = display_map.clip_point(position, Bias::Left);
2110
2111 let start;
2112 let end;
2113 let mode;
2114 let auto_scroll;
2115 match click_count {
2116 1 => {
2117 start = buffer.anchor_before(position.to_point(&display_map));
2118 end = start.clone();
2119 mode = SelectMode::Character;
2120 auto_scroll = true;
2121 }
2122 2 => {
2123 let range = movement::surrounding_word(&display_map, position);
2124 start = buffer.anchor_before(range.start.to_point(&display_map));
2125 end = buffer.anchor_before(range.end.to_point(&display_map));
2126 mode = SelectMode::Word(start.clone()..end.clone());
2127 auto_scroll = true;
2128 }
2129 3 => {
2130 let position = display_map
2131 .clip_point(position, Bias::Left)
2132 .to_point(&display_map);
2133 let line_start = display_map.prev_line_boundary(position).0;
2134 let next_line_start = buffer.clip_point(
2135 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2136 Bias::Left,
2137 );
2138 start = buffer.anchor_before(line_start);
2139 end = buffer.anchor_before(next_line_start);
2140 mode = SelectMode::Line(start.clone()..end.clone());
2141 auto_scroll = true;
2142 }
2143 _ => {
2144 start = buffer.anchor_before(0);
2145 end = buffer.anchor_before(buffer.len());
2146 mode = SelectMode::All;
2147 auto_scroll = false;
2148 }
2149 }
2150
2151 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2152 if !add {
2153 s.clear_disjoint();
2154 } else if click_count > 1 {
2155 s.delete(newest_selection.id)
2156 }
2157
2158 s.set_pending_anchor_range(start..end, mode);
2159 });
2160 }
2161
2162 fn begin_columnar_selection(
2163 &mut self,
2164 position: DisplayPoint,
2165 goal_column: u32,
2166 cx: &mut ViewContext<Self>,
2167 ) {
2168 if !self.focus_handle.is_focused(cx) {
2169 cx.focus(&self.focus_handle);
2170 }
2171
2172 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2173 let tail = self.selections.newest::<Point>(cx).tail();
2174 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2175
2176 self.select_columns(
2177 tail.to_display_point(&display_map),
2178 position,
2179 goal_column,
2180 &display_map,
2181 cx,
2182 );
2183 }
2184
2185 fn update_selection(
2186 &mut self,
2187 position: DisplayPoint,
2188 goal_column: u32,
2189 scroll_delta: gpui::Point<f32>,
2190 cx: &mut ViewContext<Self>,
2191 ) {
2192 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2193
2194 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2195 let tail = tail.to_display_point(&display_map);
2196 self.select_columns(tail, position, goal_column, &display_map, cx);
2197 } else if let Some(mut pending) = self.selections.pending_anchor() {
2198 let buffer = self.buffer.read(cx).snapshot(cx);
2199 let head;
2200 let tail;
2201 let mode = self.selections.pending_mode().unwrap();
2202 match &mode {
2203 SelectMode::Character => {
2204 head = position.to_point(&display_map);
2205 tail = pending.tail().to_point(&buffer);
2206 }
2207 SelectMode::Word(original_range) => {
2208 let original_display_range = original_range.start.to_display_point(&display_map)
2209 ..original_range.end.to_display_point(&display_map);
2210 let original_buffer_range = original_display_range.start.to_point(&display_map)
2211 ..original_display_range.end.to_point(&display_map);
2212 if movement::is_inside_word(&display_map, position)
2213 || original_display_range.contains(&position)
2214 {
2215 let word_range = movement::surrounding_word(&display_map, position);
2216 if word_range.start < original_display_range.start {
2217 head = word_range.start.to_point(&display_map);
2218 } else {
2219 head = word_range.end.to_point(&display_map);
2220 }
2221 } else {
2222 head = position.to_point(&display_map);
2223 }
2224
2225 if head <= original_buffer_range.start {
2226 tail = original_buffer_range.end;
2227 } else {
2228 tail = original_buffer_range.start;
2229 }
2230 }
2231 SelectMode::Line(original_range) => {
2232 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2233
2234 let position = display_map
2235 .clip_point(position, Bias::Left)
2236 .to_point(&display_map);
2237 let line_start = display_map.prev_line_boundary(position).0;
2238 let next_line_start = buffer.clip_point(
2239 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2240 Bias::Left,
2241 );
2242
2243 if line_start < original_range.start {
2244 head = line_start
2245 } else {
2246 head = next_line_start
2247 }
2248
2249 if head <= original_range.start {
2250 tail = original_range.end;
2251 } else {
2252 tail = original_range.start;
2253 }
2254 }
2255 SelectMode::All => {
2256 return;
2257 }
2258 };
2259
2260 if head < tail {
2261 pending.start = buffer.anchor_before(head);
2262 pending.end = buffer.anchor_before(tail);
2263 pending.reversed = true;
2264 } else {
2265 pending.start = buffer.anchor_before(tail);
2266 pending.end = buffer.anchor_before(head);
2267 pending.reversed = false;
2268 }
2269
2270 self.change_selections(None, cx, |s| {
2271 s.set_pending(pending, mode);
2272 });
2273 } else {
2274 log::error!("update_selection dispatched with no pending selection");
2275 return;
2276 }
2277
2278 self.apply_scroll_delta(scroll_delta, cx);
2279 cx.notify();
2280 }
2281
2282 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2283 self.columnar_selection_tail.take();
2284 if self.selections.pending_anchor().is_some() {
2285 let selections = self.selections.all::<usize>(cx);
2286 self.change_selections(None, cx, |s| {
2287 s.select(selections);
2288 s.clear_pending();
2289 });
2290 }
2291 }
2292
2293 fn select_columns(
2294 &mut self,
2295 tail: DisplayPoint,
2296 head: DisplayPoint,
2297 goal_column: u32,
2298 display_map: &DisplaySnapshot,
2299 cx: &mut ViewContext<Self>,
2300 ) {
2301 let start_row = cmp::min(tail.row(), head.row());
2302 let end_row = cmp::max(tail.row(), head.row());
2303 let start_column = cmp::min(tail.column(), goal_column);
2304 let end_column = cmp::max(tail.column(), goal_column);
2305 let reversed = start_column < tail.column();
2306
2307 let selection_ranges = (start_row..=end_row)
2308 .filter_map(|row| {
2309 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2310 let start = display_map
2311 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2312 .to_point(display_map);
2313 let end = display_map
2314 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2315 .to_point(display_map);
2316 if reversed {
2317 Some(end..start)
2318 } else {
2319 Some(start..end)
2320 }
2321 } else {
2322 None
2323 }
2324 })
2325 .collect::<Vec<_>>();
2326
2327 self.change_selections(None, cx, |s| {
2328 s.select_ranges(selection_ranges);
2329 });
2330 cx.notify();
2331 }
2332
2333 pub fn has_pending_nonempty_selection(&self) -> bool {
2334 let pending_nonempty_selection = match self.selections.pending_anchor() {
2335 Some(Selection { start, end, .. }) => start != end,
2336 None => false,
2337 };
2338 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2339 }
2340
2341 pub fn has_pending_selection(&self) -> bool {
2342 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2343 }
2344
2345 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2346 if self.take_rename(false, cx).is_some() {
2347 return;
2348 }
2349
2350 if hide_hover(self, cx) {
2351 return;
2352 }
2353
2354 if self.hide_context_menu(cx).is_some() {
2355 return;
2356 }
2357
2358 if self.discard_copilot_suggestion(cx) {
2359 return;
2360 }
2361
2362 if self.snippet_stack.pop().is_some() {
2363 return;
2364 }
2365
2366 if self.mode == EditorMode::Full {
2367 if self.active_diagnostics.is_some() {
2368 self.dismiss_diagnostics(cx);
2369 return;
2370 }
2371
2372 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2373 return;
2374 }
2375 }
2376
2377 cx.propagate();
2378 }
2379
2380 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2381 let text: Arc<str> = text.into();
2382
2383 if self.read_only(cx) {
2384 return;
2385 }
2386
2387 let selections = self.selections.all_adjusted(cx);
2388 let mut brace_inserted = false;
2389 let mut edits = Vec::new();
2390 let mut new_selections = Vec::with_capacity(selections.len());
2391 let mut new_autoclose_regions = Vec::new();
2392 let snapshot = self.buffer.read(cx).read(cx);
2393
2394 for (selection, autoclose_region) in
2395 self.selections_with_autoclose_regions(selections, &snapshot)
2396 {
2397 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2398 // Determine if the inserted text matches the opening or closing
2399 // bracket of any of this language's bracket pairs.
2400 let mut bracket_pair = None;
2401 let mut is_bracket_pair_start = false;
2402 if !text.is_empty() {
2403 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2404 // and they are removing the character that triggered IME popup.
2405 for (pair, enabled) in scope.brackets() {
2406 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2407 bracket_pair = Some(pair.clone());
2408 is_bracket_pair_start = true;
2409 break;
2410 } else if pair.end.as_str() == text.as_ref() {
2411 bracket_pair = Some(pair.clone());
2412 break;
2413 }
2414 }
2415 }
2416
2417 if let Some(bracket_pair) = bracket_pair {
2418 if selection.is_empty() {
2419 if is_bracket_pair_start {
2420 let prefix_len = bracket_pair.start.len() - text.len();
2421
2422 // If the inserted text is a suffix of an opening bracket and the
2423 // selection is preceded by the rest of the opening bracket, then
2424 // insert the closing bracket.
2425 let following_text_allows_autoclose = snapshot
2426 .chars_at(selection.start)
2427 .next()
2428 .map_or(true, |c| scope.should_autoclose_before(c));
2429 let preceding_text_matches_prefix = prefix_len == 0
2430 || (selection.start.column >= (prefix_len as u32)
2431 && snapshot.contains_str_at(
2432 Point::new(
2433 selection.start.row,
2434 selection.start.column - (prefix_len as u32),
2435 ),
2436 &bracket_pair.start[..prefix_len],
2437 ));
2438 let autoclose = self.use_autoclose
2439 && snapshot.settings_at(selection.start, cx).use_autoclose;
2440 if autoclose
2441 && following_text_allows_autoclose
2442 && preceding_text_matches_prefix
2443 {
2444 let anchor = snapshot.anchor_before(selection.end);
2445 new_selections.push((selection.map(|_| anchor), text.len()));
2446 new_autoclose_regions.push((
2447 anchor,
2448 text.len(),
2449 selection.id,
2450 bracket_pair.clone(),
2451 ));
2452 edits.push((
2453 selection.range(),
2454 format!("{}{}", text, bracket_pair.end).into(),
2455 ));
2456 brace_inserted = true;
2457 continue;
2458 }
2459 }
2460
2461 if let Some(region) = autoclose_region {
2462 // If the selection is followed by an auto-inserted closing bracket,
2463 // then don't insert that closing bracket again; just move the selection
2464 // past the closing bracket.
2465 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2466 && text.as_ref() == region.pair.end.as_str();
2467 if should_skip {
2468 let anchor = snapshot.anchor_after(selection.end);
2469 new_selections
2470 .push((selection.map(|_| anchor), region.pair.end.len()));
2471 continue;
2472 }
2473 }
2474 }
2475 // If an opening bracket is 1 character long and is typed while
2476 // text is selected, then surround that text with the bracket pair.
2477 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2478 edits.push((selection.start..selection.start, text.clone()));
2479 edits.push((
2480 selection.end..selection.end,
2481 bracket_pair.end.as_str().into(),
2482 ));
2483 brace_inserted = true;
2484 new_selections.push((
2485 Selection {
2486 id: selection.id,
2487 start: snapshot.anchor_after(selection.start),
2488 end: snapshot.anchor_before(selection.end),
2489 reversed: selection.reversed,
2490 goal: selection.goal,
2491 },
2492 0,
2493 ));
2494 continue;
2495 }
2496 }
2497 }
2498
2499 // If not handling any auto-close operation, then just replace the selected
2500 // text with the given input and move the selection to the end of the
2501 // newly inserted text.
2502 let anchor = snapshot.anchor_after(selection.end);
2503 new_selections.push((selection.map(|_| anchor), 0));
2504 edits.push((selection.start..selection.end, text.clone()));
2505 }
2506
2507 drop(snapshot);
2508 self.transact(cx, |this, cx| {
2509 this.buffer.update(cx, |buffer, cx| {
2510 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2511 });
2512
2513 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2514 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2515 let snapshot = this.buffer.read(cx).read(cx);
2516 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2517 .zip(new_selection_deltas)
2518 .map(|(selection, delta)| Selection {
2519 id: selection.id,
2520 start: selection.start + delta,
2521 end: selection.end + delta,
2522 reversed: selection.reversed,
2523 goal: SelectionGoal::None,
2524 })
2525 .collect::<Vec<_>>();
2526
2527 let mut i = 0;
2528 for (position, delta, selection_id, pair) in new_autoclose_regions {
2529 let position = position.to_offset(&snapshot) + delta;
2530 let start = snapshot.anchor_before(position);
2531 let end = snapshot.anchor_after(position);
2532 while let Some(existing_state) = this.autoclose_regions.get(i) {
2533 match existing_state.range.start.cmp(&start, &snapshot) {
2534 Ordering::Less => i += 1,
2535 Ordering::Greater => break,
2536 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2537 Ordering::Less => i += 1,
2538 Ordering::Equal => break,
2539 Ordering::Greater => break,
2540 },
2541 }
2542 }
2543 this.autoclose_regions.insert(
2544 i,
2545 AutocloseRegion {
2546 selection_id,
2547 range: start..end,
2548 pair,
2549 },
2550 );
2551 }
2552
2553 drop(snapshot);
2554 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2555 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2556
2557 if brace_inserted {
2558 // If we inserted a brace while composing text (i.e. typing `"` on a
2559 // Brazilian keyboard), exit the composing state because most likely
2560 // the user wanted to surround the selection.
2561 this.unmark_text(cx);
2562 } else if EditorSettings::get_global(cx).use_on_type_format {
2563 if let Some(on_type_format_task) =
2564 this.trigger_on_type_formatting(text.to_string(), cx)
2565 {
2566 on_type_format_task.detach_and_log_err(cx);
2567 }
2568 }
2569
2570 if had_active_copilot_suggestion {
2571 this.refresh_copilot_suggestions(true, cx);
2572 if !this.has_active_copilot_suggestion(cx) {
2573 this.trigger_completion_on_input(&text, cx);
2574 }
2575 } else {
2576 this.trigger_completion_on_input(&text, cx);
2577 this.refresh_copilot_suggestions(true, cx);
2578 }
2579 });
2580 }
2581
2582 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2583 self.transact(cx, |this, cx| {
2584 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2585 let selections = this.selections.all::<usize>(cx);
2586 let multi_buffer = this.buffer.read(cx);
2587 let buffer = multi_buffer.snapshot(cx);
2588 selections
2589 .iter()
2590 .map(|selection| {
2591 let start_point = selection.start.to_point(&buffer);
2592 let mut indent = buffer.indent_size_for_line(start_point.row);
2593 indent.len = cmp::min(indent.len, start_point.column);
2594 let start = selection.start;
2595 let end = selection.end;
2596 let is_cursor = start == end;
2597 let language_scope = buffer.language_scope_at(start);
2598 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2599 &language_scope
2600 {
2601 let leading_whitespace_len = buffer
2602 .reversed_chars_at(start)
2603 .take_while(|c| c.is_whitespace() && *c != '\n')
2604 .map(|c| c.len_utf8())
2605 .sum::<usize>();
2606
2607 let trailing_whitespace_len = buffer
2608 .chars_at(end)
2609 .take_while(|c| c.is_whitespace() && *c != '\n')
2610 .map(|c| c.len_utf8())
2611 .sum::<usize>();
2612
2613 let insert_extra_newline =
2614 language.brackets().any(|(pair, enabled)| {
2615 let pair_start = pair.start.trim_end();
2616 let pair_end = pair.end.trim_start();
2617
2618 enabled
2619 && pair.newline
2620 && buffer.contains_str_at(
2621 end + trailing_whitespace_len,
2622 pair_end,
2623 )
2624 && buffer.contains_str_at(
2625 (start - leading_whitespace_len)
2626 .saturating_sub(pair_start.len()),
2627 pair_start,
2628 )
2629 });
2630 // Comment extension on newline is allowed only for cursor selections
2631 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2632 let is_comment_extension_enabled =
2633 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2634 is_cursor && is_comment_extension_enabled
2635 });
2636 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2637 let max_len_of_delimiter =
2638 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2639 let (snapshot, range) =
2640 buffer.buffer_line_for_row(start_point.row)?;
2641
2642 let mut index_of_first_non_whitespace = 0;
2643 let comment_candidate = snapshot
2644 .chars_for_range(range)
2645 .skip_while(|c| {
2646 let should_skip = c.is_whitespace();
2647 if should_skip {
2648 index_of_first_non_whitespace += 1;
2649 }
2650 should_skip
2651 })
2652 .take(max_len_of_delimiter)
2653 .collect::<String>();
2654 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2655 comment_candidate.starts_with(comment_prefix.as_ref())
2656 })?;
2657 let cursor_is_placed_after_comment_marker =
2658 index_of_first_non_whitespace + comment_prefix.len()
2659 <= start_point.column as usize;
2660 if cursor_is_placed_after_comment_marker {
2661 Some(comment_prefix.clone())
2662 } else {
2663 None
2664 }
2665 };
2666 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2667 get_comment_delimiter(delimiters)
2668 } else {
2669 None
2670 };
2671 (comment_delimiter, insert_extra_newline)
2672 } else {
2673 (None, false)
2674 };
2675
2676 let capacity_for_delimiter = comment_delimiter
2677 .as_deref()
2678 .map(str::len)
2679 .unwrap_or_default();
2680 let mut new_text =
2681 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2682 new_text.push_str("\n");
2683 new_text.extend(indent.chars());
2684 if let Some(delimiter) = &comment_delimiter {
2685 new_text.push_str(&delimiter);
2686 }
2687 if insert_extra_newline {
2688 new_text = new_text.repeat(2);
2689 }
2690
2691 let anchor = buffer.anchor_after(end);
2692 let new_selection = selection.map(|_| anchor);
2693 (
2694 (start..end, new_text),
2695 (insert_extra_newline, new_selection),
2696 )
2697 })
2698 .unzip()
2699 };
2700
2701 this.edit_with_autoindent(edits, cx);
2702 let buffer = this.buffer.read(cx).snapshot(cx);
2703 let new_selections = selection_fixup_info
2704 .into_iter()
2705 .map(|(extra_newline_inserted, new_selection)| {
2706 let mut cursor = new_selection.end.to_point(&buffer);
2707 if extra_newline_inserted {
2708 cursor.row -= 1;
2709 cursor.column = buffer.line_len(cursor.row);
2710 }
2711 new_selection.map(|_| cursor)
2712 })
2713 .collect();
2714
2715 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2716 this.refresh_copilot_suggestions(true, cx);
2717 });
2718 }
2719
2720 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2721 let buffer = self.buffer.read(cx);
2722 let snapshot = buffer.snapshot(cx);
2723
2724 let mut edits = Vec::new();
2725 let mut rows = Vec::new();
2726 let mut rows_inserted = 0;
2727
2728 for selection in self.selections.all_adjusted(cx) {
2729 let cursor = selection.head();
2730 let row = cursor.row;
2731
2732 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2733
2734 let newline = "\n".to_string();
2735 edits.push((start_of_line..start_of_line, newline));
2736
2737 rows.push(row + rows_inserted);
2738 rows_inserted += 1;
2739 }
2740
2741 self.transact(cx, |editor, cx| {
2742 editor.edit(edits, cx);
2743
2744 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2745 let mut index = 0;
2746 s.move_cursors_with(|map, _, _| {
2747 let row = rows[index];
2748 index += 1;
2749
2750 let point = Point::new(row, 0);
2751 let boundary = map.next_line_boundary(point).1;
2752 let clipped = map.clip_point(boundary, Bias::Left);
2753
2754 (clipped, SelectionGoal::None)
2755 });
2756 });
2757
2758 let mut indent_edits = Vec::new();
2759 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2760 for row in rows {
2761 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2762 for (row, indent) in indents {
2763 if indent.len == 0 {
2764 continue;
2765 }
2766
2767 let text = match indent.kind {
2768 IndentKind::Space => " ".repeat(indent.len as usize),
2769 IndentKind::Tab => "\t".repeat(indent.len as usize),
2770 };
2771 let point = Point::new(row, 0);
2772 indent_edits.push((point..point, text));
2773 }
2774 }
2775 editor.edit(indent_edits, cx);
2776 });
2777 }
2778
2779 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2780 let buffer = self.buffer.read(cx);
2781 let snapshot = buffer.snapshot(cx);
2782
2783 let mut edits = Vec::new();
2784 let mut rows = Vec::new();
2785 let mut rows_inserted = 0;
2786
2787 for selection in self.selections.all_adjusted(cx) {
2788 let cursor = selection.head();
2789 let row = cursor.row;
2790
2791 let point = Point::new(row + 1, 0);
2792 let start_of_line = snapshot.clip_point(point, Bias::Left);
2793
2794 let newline = "\n".to_string();
2795 edits.push((start_of_line..start_of_line, newline));
2796
2797 rows_inserted += 1;
2798 rows.push(row + rows_inserted);
2799 }
2800
2801 self.transact(cx, |editor, cx| {
2802 editor.edit(edits, cx);
2803
2804 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2805 let mut index = 0;
2806 s.move_cursors_with(|map, _, _| {
2807 let row = rows[index];
2808 index += 1;
2809
2810 let point = Point::new(row, 0);
2811 let boundary = map.next_line_boundary(point).1;
2812 let clipped = map.clip_point(boundary, Bias::Left);
2813
2814 (clipped, SelectionGoal::None)
2815 });
2816 });
2817
2818 let mut indent_edits = Vec::new();
2819 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2820 for row in rows {
2821 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2822 for (row, indent) in indents {
2823 if indent.len == 0 {
2824 continue;
2825 }
2826
2827 let text = match indent.kind {
2828 IndentKind::Space => " ".repeat(indent.len as usize),
2829 IndentKind::Tab => "\t".repeat(indent.len as usize),
2830 };
2831 let point = Point::new(row, 0);
2832 indent_edits.push((point..point, text));
2833 }
2834 }
2835 editor.edit(indent_edits, cx);
2836 });
2837 }
2838
2839 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2840 self.insert_with_autoindent_mode(
2841 text,
2842 Some(AutoindentMode::Block {
2843 original_indent_columns: Vec::new(),
2844 }),
2845 cx,
2846 );
2847 }
2848
2849 fn insert_with_autoindent_mode(
2850 &mut self,
2851 text: &str,
2852 autoindent_mode: Option<AutoindentMode>,
2853 cx: &mut ViewContext<Self>,
2854 ) {
2855 if self.read_only(cx) {
2856 return;
2857 }
2858
2859 let text: Arc<str> = text.into();
2860 self.transact(cx, |this, cx| {
2861 let old_selections = this.selections.all_adjusted(cx);
2862 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2863 let anchors = {
2864 let snapshot = buffer.read(cx);
2865 old_selections
2866 .iter()
2867 .map(|s| {
2868 let anchor = snapshot.anchor_after(s.head());
2869 s.map(|_| anchor)
2870 })
2871 .collect::<Vec<_>>()
2872 };
2873 buffer.edit(
2874 old_selections
2875 .iter()
2876 .map(|s| (s.start..s.end, text.clone())),
2877 autoindent_mode,
2878 cx,
2879 );
2880 anchors
2881 });
2882
2883 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2884 s.select_anchors(selection_anchors);
2885 })
2886 });
2887 }
2888
2889 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2890 if !EditorSettings::get_global(cx).show_completions_on_input {
2891 return;
2892 }
2893
2894 let selection = self.selections.newest_anchor();
2895 if self
2896 .buffer
2897 .read(cx)
2898 .is_completion_trigger(selection.head(), text, cx)
2899 {
2900 self.show_completions(&ShowCompletions, cx);
2901 } else {
2902 self.hide_context_menu(cx);
2903 }
2904 }
2905
2906 /// If any empty selections is touching the start of its innermost containing autoclose
2907 /// region, expand it to select the brackets.
2908 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2909 let selections = self.selections.all::<usize>(cx);
2910 let buffer = self.buffer.read(cx).read(cx);
2911 let mut new_selections = Vec::new();
2912 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2913 if let (Some(region), true) = (region, selection.is_empty()) {
2914 let mut range = region.range.to_offset(&buffer);
2915 if selection.start == range.start {
2916 if range.start >= region.pair.start.len() {
2917 range.start -= region.pair.start.len();
2918 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2919 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2920 range.end += region.pair.end.len();
2921 selection.start = range.start;
2922 selection.end = range.end;
2923 }
2924 }
2925 }
2926 }
2927 }
2928 new_selections.push(selection);
2929 }
2930
2931 drop(buffer);
2932 self.change_selections(None, cx, |selections| selections.select(new_selections));
2933 }
2934
2935 /// Iterate the given selections, and for each one, find the smallest surrounding
2936 /// autoclose region. This uses the ordering of the selections and the autoclose
2937 /// regions to avoid repeated comparisons.
2938 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2939 &'a self,
2940 selections: impl IntoIterator<Item = Selection<D>>,
2941 buffer: &'a MultiBufferSnapshot,
2942 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2943 let mut i = 0;
2944 let mut regions = self.autoclose_regions.as_slice();
2945 selections.into_iter().map(move |selection| {
2946 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2947
2948 let mut enclosing = None;
2949 while let Some(pair_state) = regions.get(i) {
2950 if pair_state.range.end.to_offset(buffer) < range.start {
2951 regions = ®ions[i + 1..];
2952 i = 0;
2953 } else if pair_state.range.start.to_offset(buffer) > range.end {
2954 break;
2955 } else {
2956 if pair_state.selection_id == selection.id {
2957 enclosing = Some(pair_state);
2958 }
2959 i += 1;
2960 }
2961 }
2962
2963 (selection.clone(), enclosing)
2964 })
2965 }
2966
2967 /// Remove any autoclose regions that no longer contain their selection.
2968 fn invalidate_autoclose_regions(
2969 &mut self,
2970 mut selections: &[Selection<Anchor>],
2971 buffer: &MultiBufferSnapshot,
2972 ) {
2973 self.autoclose_regions.retain(|state| {
2974 let mut i = 0;
2975 while let Some(selection) = selections.get(i) {
2976 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2977 selections = &selections[1..];
2978 continue;
2979 }
2980 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2981 break;
2982 }
2983 if selection.id == state.selection_id {
2984 return true;
2985 } else {
2986 i += 1;
2987 }
2988 }
2989 false
2990 });
2991 }
2992
2993 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
2994 let offset = position.to_offset(buffer);
2995 let (word_range, kind) = buffer.surrounding_word(offset);
2996 if offset > word_range.start && kind == Some(CharKind::Word) {
2997 Some(
2998 buffer
2999 .text_for_range(word_range.start..offset)
3000 .collect::<String>(),
3001 )
3002 } else {
3003 None
3004 }
3005 }
3006
3007 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3008 self.refresh_inlay_hints(
3009 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3010 cx,
3011 );
3012 }
3013
3014 pub fn inlay_hints_enabled(&self) -> bool {
3015 self.inlay_hint_cache.enabled
3016 }
3017
3018 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3019 if self.project.is_none() || self.mode != EditorMode::Full {
3020 return;
3021 }
3022
3023 let reason_description = reason.description();
3024 let (invalidate_cache, required_languages) = match reason {
3025 InlayHintRefreshReason::Toggle(enabled) => {
3026 self.inlay_hint_cache.enabled = enabled;
3027 if enabled {
3028 (InvalidationStrategy::RefreshRequested, None)
3029 } else {
3030 self.inlay_hint_cache.clear();
3031 self.splice_inlay_hints(
3032 self.visible_inlay_hints(cx)
3033 .iter()
3034 .map(|inlay| inlay.id)
3035 .collect(),
3036 Vec::new(),
3037 cx,
3038 );
3039 return;
3040 }
3041 }
3042 InlayHintRefreshReason::SettingsChange(new_settings) => {
3043 match self.inlay_hint_cache.update_settings(
3044 &self.buffer,
3045 new_settings,
3046 self.visible_inlay_hints(cx),
3047 cx,
3048 ) {
3049 ControlFlow::Break(Some(InlaySplice {
3050 to_remove,
3051 to_insert,
3052 })) => {
3053 self.splice_inlay_hints(to_remove, to_insert, cx);
3054 return;
3055 }
3056 ControlFlow::Break(None) => return,
3057 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3058 }
3059 }
3060 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3061 if let Some(InlaySplice {
3062 to_remove,
3063 to_insert,
3064 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3065 {
3066 self.splice_inlay_hints(to_remove, to_insert, cx);
3067 }
3068 return;
3069 }
3070 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3071 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3072 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3073 }
3074 InlayHintRefreshReason::RefreshRequested => {
3075 (InvalidationStrategy::RefreshRequested, None)
3076 }
3077 };
3078
3079 if let Some(InlaySplice {
3080 to_remove,
3081 to_insert,
3082 }) = self.inlay_hint_cache.spawn_hint_refresh(
3083 reason_description,
3084 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3085 invalidate_cache,
3086 cx,
3087 ) {
3088 self.splice_inlay_hints(to_remove, to_insert, cx);
3089 }
3090 }
3091
3092 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3093 self.display_map
3094 .read(cx)
3095 .current_inlays()
3096 .filter(move |inlay| {
3097 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
3098 })
3099 .cloned()
3100 .collect()
3101 }
3102
3103 pub fn excerpts_for_inlay_hints_query(
3104 &self,
3105 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3106 cx: &mut ViewContext<Editor>,
3107 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3108 let Some(project) = self.project.as_ref() else {
3109 return HashMap::default();
3110 };
3111 let project = project.read(cx);
3112 let multi_buffer = self.buffer().read(cx);
3113 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3114 let multi_buffer_visible_start = self
3115 .scroll_manager
3116 .anchor()
3117 .anchor
3118 .to_point(&multi_buffer_snapshot);
3119 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3120 multi_buffer_visible_start
3121 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3122 Bias::Left,
3123 );
3124 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3125 multi_buffer
3126 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3127 .into_iter()
3128 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3129 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3130 let buffer = buffer_handle.read(cx);
3131 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3132 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3133 let worktree_entry = buffer_worktree
3134 .read(cx)
3135 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3136 if worktree_entry.is_ignored {
3137 return None;
3138 }
3139
3140 let language = buffer.language()?;
3141 if let Some(restrict_to_languages) = restrict_to_languages {
3142 if !restrict_to_languages.contains(language) {
3143 return None;
3144 }
3145 }
3146 Some((
3147 excerpt_id,
3148 (
3149 buffer_handle,
3150 buffer.version().clone(),
3151 excerpt_visible_range,
3152 ),
3153 ))
3154 })
3155 .collect()
3156 }
3157
3158 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3159 TextLayoutDetails {
3160 text_system: cx.text_system().clone(),
3161 editor_style: self.style.clone().unwrap(),
3162 rem_size: cx.rem_size(),
3163 scroll_anchor: self.scroll_manager.anchor(),
3164 visible_rows: self.visible_line_count(),
3165 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3166 }
3167 }
3168
3169 fn splice_inlay_hints(
3170 &self,
3171 to_remove: Vec<InlayId>,
3172 to_insert: Vec<Inlay>,
3173 cx: &mut ViewContext<Self>,
3174 ) {
3175 self.display_map.update(cx, |display_map, cx| {
3176 display_map.splice_inlays(to_remove, to_insert, cx);
3177 });
3178 cx.notify();
3179 }
3180
3181 fn trigger_on_type_formatting(
3182 &self,
3183 input: String,
3184 cx: &mut ViewContext<Self>,
3185 ) -> Option<Task<Result<()>>> {
3186 if input.len() != 1 {
3187 return None;
3188 }
3189
3190 let project = self.project.as_ref()?;
3191 let position = self.selections.newest_anchor().head();
3192 let (buffer, buffer_position) = self
3193 .buffer
3194 .read(cx)
3195 .text_anchor_for_position(position.clone(), cx)?;
3196
3197 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3198 // hence we do LSP request & edit on host side only — add formats to host's history.
3199 let push_to_lsp_host_history = true;
3200 // If this is not the host, append its history with new edits.
3201 let push_to_client_history = project.read(cx).is_remote();
3202
3203 let on_type_formatting = project.update(cx, |project, cx| {
3204 project.on_type_format(
3205 buffer.clone(),
3206 buffer_position,
3207 input,
3208 push_to_lsp_host_history,
3209 cx,
3210 )
3211 });
3212 Some(cx.spawn(|editor, mut cx| async move {
3213 if let Some(transaction) = on_type_formatting.await? {
3214 if push_to_client_history {
3215 buffer
3216 .update(&mut cx, |buffer, _| {
3217 buffer.push_transaction(transaction, Instant::now());
3218 })
3219 .ok();
3220 }
3221 editor.update(&mut cx, |editor, cx| {
3222 editor.refresh_document_highlights(cx);
3223 })?;
3224 }
3225 Ok(())
3226 }))
3227 }
3228
3229 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3230 if self.pending_rename.is_some() {
3231 return;
3232 }
3233
3234 let Some(provider) = self.completion_provider.as_ref() else {
3235 return;
3236 };
3237
3238 let position = self.selections.newest_anchor().head();
3239 let (buffer, buffer_position) = if let Some(output) = self
3240 .buffer
3241 .read(cx)
3242 .text_anchor_for_position(position.clone(), cx)
3243 {
3244 output
3245 } else {
3246 return;
3247 };
3248
3249 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3250 let completions = provider.completions(&buffer, buffer_position, cx);
3251
3252 let id = post_inc(&mut self.next_completion_id);
3253 let task = cx.spawn(|this, mut cx| {
3254 async move {
3255 let completions = completions.await.log_err();
3256 let menu = if let Some(completions) = completions {
3257 let mut menu = CompletionsMenu {
3258 id,
3259 initial_position: position,
3260 match_candidates: completions
3261 .iter()
3262 .enumerate()
3263 .map(|(id, completion)| {
3264 StringMatchCandidate::new(
3265 id,
3266 completion.label.text[completion.label.filter_range.clone()]
3267 .into(),
3268 )
3269 })
3270 .collect(),
3271 buffer,
3272 completions: Arc::new(RwLock::new(completions.into())),
3273 matches: Vec::new().into(),
3274 selected_item: 0,
3275 scroll_handle: UniformListScrollHandle::new(),
3276 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3277 DebouncedDelay::new(),
3278 )),
3279 };
3280 menu.filter(query.as_deref(), cx.background_executor().clone())
3281 .await;
3282
3283 if menu.matches.is_empty() {
3284 None
3285 } else {
3286 this.update(&mut cx, |editor, cx| {
3287 let completions = menu.completions.clone();
3288 let matches = menu.matches.clone();
3289
3290 let delay_ms = EditorSettings::get_global(cx)
3291 .completion_documentation_secondary_query_debounce;
3292 let delay = Duration::from_millis(delay_ms);
3293
3294 editor
3295 .completion_documentation_pre_resolve_debounce
3296 .fire_new(delay, cx, |editor, cx| {
3297 CompletionsMenu::pre_resolve_completion_documentation(
3298 completions,
3299 matches,
3300 editor,
3301 cx,
3302 )
3303 });
3304 })
3305 .ok();
3306 Some(menu)
3307 }
3308 } else {
3309 None
3310 };
3311
3312 this.update(&mut cx, |this, cx| {
3313 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3314
3315 let mut context_menu = this.context_menu.write();
3316 match context_menu.as_ref() {
3317 None => {}
3318
3319 Some(ContextMenu::Completions(prev_menu)) => {
3320 if prev_menu.id > id {
3321 return;
3322 }
3323 }
3324
3325 _ => return,
3326 }
3327
3328 if this.focus_handle.is_focused(cx) && menu.is_some() {
3329 let menu = menu.unwrap();
3330 *context_menu = Some(ContextMenu::Completions(menu));
3331 drop(context_menu);
3332 this.discard_copilot_suggestion(cx);
3333 cx.notify();
3334 } else if this.completion_tasks.len() <= 1 {
3335 // If there are no more completion tasks and the last menu was
3336 // empty, we should hide it. If it was already hidden, we should
3337 // also show the copilot suggestion when available.
3338 drop(context_menu);
3339 if this.hide_context_menu(cx).is_none() {
3340 this.update_visible_copilot_suggestion(cx);
3341 }
3342 }
3343 })?;
3344
3345 Ok::<_, anyhow::Error>(())
3346 }
3347 .log_err()
3348 });
3349
3350 self.completion_tasks.push((id, task));
3351 }
3352
3353 pub fn confirm_completion(
3354 &mut self,
3355 action: &ConfirmCompletion,
3356 cx: &mut ViewContext<Self>,
3357 ) -> Option<Task<Result<()>>> {
3358 use language::ToOffset as _;
3359
3360 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3361 menu
3362 } else {
3363 return None;
3364 };
3365
3366 let mat = completions_menu
3367 .matches
3368 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3369 let buffer_handle = completions_menu.buffer;
3370 let completions = completions_menu.completions.read();
3371 let completion = completions.get(mat.candidate_id)?;
3372 cx.stop_propagation();
3373
3374 let snippet;
3375 let text;
3376 if completion.is_snippet() {
3377 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3378 text = snippet.as_ref().unwrap().text.clone();
3379 } else {
3380 snippet = None;
3381 text = completion.new_text.clone();
3382 };
3383 let selections = self.selections.all::<usize>(cx);
3384 let buffer = buffer_handle.read(cx);
3385 let old_range = completion.old_range.to_offset(buffer);
3386 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3387
3388 let newest_selection = self.selections.newest_anchor();
3389 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3390 return None;
3391 }
3392
3393 let lookbehind = newest_selection
3394 .start
3395 .text_anchor
3396 .to_offset(buffer)
3397 .saturating_sub(old_range.start);
3398 let lookahead = old_range
3399 .end
3400 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3401 let mut common_prefix_len = old_text
3402 .bytes()
3403 .zip(text.bytes())
3404 .take_while(|(a, b)| a == b)
3405 .count();
3406
3407 let snapshot = self.buffer.read(cx).snapshot(cx);
3408 let mut range_to_replace: Option<Range<isize>> = None;
3409 let mut ranges = Vec::new();
3410 for selection in &selections {
3411 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3412 let start = selection.start.saturating_sub(lookbehind);
3413 let end = selection.end + lookahead;
3414 if selection.id == newest_selection.id {
3415 range_to_replace = Some(
3416 ((start + common_prefix_len) as isize - selection.start as isize)
3417 ..(end as isize - selection.start as isize),
3418 );
3419 }
3420 ranges.push(start + common_prefix_len..end);
3421 } else {
3422 common_prefix_len = 0;
3423 ranges.clear();
3424 ranges.extend(selections.iter().map(|s| {
3425 if s.id == newest_selection.id {
3426 range_to_replace = Some(
3427 old_range.start.to_offset_utf16(&snapshot).0 as isize
3428 - selection.start as isize
3429 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3430 - selection.start as isize,
3431 );
3432 old_range.clone()
3433 } else {
3434 s.start..s.end
3435 }
3436 }));
3437 break;
3438 }
3439 }
3440 let text = &text[common_prefix_len..];
3441
3442 cx.emit(EditorEvent::InputHandled {
3443 utf16_range_to_replace: range_to_replace,
3444 text: text.into(),
3445 });
3446
3447 self.transact(cx, |this, cx| {
3448 if let Some(mut snippet) = snippet {
3449 snippet.text = text.to_string();
3450 for tabstop in snippet.tabstops.iter_mut().flatten() {
3451 tabstop.start -= common_prefix_len as isize;
3452 tabstop.end -= common_prefix_len as isize;
3453 }
3454
3455 this.insert_snippet(&ranges, snippet, cx).log_err();
3456 } else {
3457 this.buffer.update(cx, |buffer, cx| {
3458 buffer.edit(
3459 ranges.iter().map(|range| (range.clone(), text)),
3460 this.autoindent_mode.clone(),
3461 cx,
3462 );
3463 });
3464 }
3465
3466 this.refresh_copilot_suggestions(true, cx);
3467 });
3468
3469 let provider = self.completion_provider.as_ref()?;
3470 let apply_edits = provider.apply_additional_edits_for_completion(
3471 buffer_handle,
3472 completion.clone(),
3473 true,
3474 cx,
3475 );
3476 Some(cx.foreground_executor().spawn(async move {
3477 apply_edits.await?;
3478 Ok(())
3479 }))
3480 }
3481
3482 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3483 let mut context_menu = self.context_menu.write();
3484 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3485 *context_menu = None;
3486 cx.notify();
3487 return;
3488 }
3489 drop(context_menu);
3490
3491 let deployed_from_indicator = action.deployed_from_indicator;
3492 let mut task = self.code_actions_task.take();
3493 cx.spawn(|this, mut cx| async move {
3494 while let Some(prev_task) = task {
3495 prev_task.await;
3496 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3497 }
3498
3499 this.update(&mut cx, |this, cx| {
3500 if this.focus_handle.is_focused(cx) {
3501 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3502 this.completion_tasks.clear();
3503 this.discard_copilot_suggestion(cx);
3504 *this.context_menu.write() =
3505 Some(ContextMenu::CodeActions(CodeActionsMenu {
3506 buffer,
3507 actions,
3508 selected_item: Default::default(),
3509 scroll_handle: UniformListScrollHandle::default(),
3510 deployed_from_indicator,
3511 }));
3512 cx.notify();
3513 }
3514 }
3515 })?;
3516
3517 Ok::<_, anyhow::Error>(())
3518 })
3519 .detach_and_log_err(cx);
3520 }
3521
3522 pub fn confirm_code_action(
3523 &mut self,
3524 action: &ConfirmCodeAction,
3525 cx: &mut ViewContext<Self>,
3526 ) -> Option<Task<Result<()>>> {
3527 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3528 menu
3529 } else {
3530 return None;
3531 };
3532 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3533 let action = actions_menu.actions.get(action_ix)?.clone();
3534 let title = action.lsp_action.title.clone();
3535 let buffer = actions_menu.buffer;
3536 let workspace = self.workspace()?;
3537
3538 let apply_code_actions = workspace
3539 .read(cx)
3540 .project()
3541 .clone()
3542 .update(cx, |project, cx| {
3543 project.apply_code_action(buffer, action, true, cx)
3544 });
3545 let workspace = workspace.downgrade();
3546 Some(cx.spawn(|editor, cx| async move {
3547 let project_transaction = apply_code_actions.await?;
3548 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3549 }))
3550 }
3551
3552 async fn open_project_transaction(
3553 this: &WeakView<Editor>,
3554 workspace: WeakView<Workspace>,
3555 transaction: ProjectTransaction,
3556 title: String,
3557 mut cx: AsyncWindowContext,
3558 ) -> Result<()> {
3559 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3560
3561 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3562 cx.update(|cx| {
3563 entries.sort_unstable_by_key(|(buffer, _)| {
3564 buffer.read(cx).file().map(|f| f.path().clone())
3565 });
3566 })?;
3567
3568 // If the project transaction's edits are all contained within this editor, then
3569 // avoid opening a new editor to display them.
3570
3571 if let Some((buffer, transaction)) = entries.first() {
3572 if entries.len() == 1 {
3573 let excerpt = this.update(&mut cx, |editor, cx| {
3574 editor
3575 .buffer()
3576 .read(cx)
3577 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3578 })?;
3579 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3580 if excerpted_buffer == *buffer {
3581 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3582 let excerpt_range = excerpt_range.to_offset(buffer);
3583 buffer
3584 .edited_ranges_for_transaction::<usize>(transaction)
3585 .all(|range| {
3586 excerpt_range.start <= range.start
3587 && excerpt_range.end >= range.end
3588 })
3589 })?;
3590
3591 if all_edits_within_excerpt {
3592 return Ok(());
3593 }
3594 }
3595 }
3596 }
3597 } else {
3598 return Ok(());
3599 }
3600
3601 let mut ranges_to_highlight = Vec::new();
3602 let excerpt_buffer = cx.new_model(|cx| {
3603 let mut multibuffer =
3604 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3605 for (buffer_handle, transaction) in &entries {
3606 let buffer = buffer_handle.read(cx);
3607 ranges_to_highlight.extend(
3608 multibuffer.push_excerpts_with_context_lines(
3609 buffer_handle.clone(),
3610 buffer
3611 .edited_ranges_for_transaction::<usize>(transaction)
3612 .collect(),
3613 1,
3614 cx,
3615 ),
3616 );
3617 }
3618 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3619 multibuffer
3620 })?;
3621
3622 workspace.update(&mut cx, |workspace, cx| {
3623 let project = workspace.project().clone();
3624 let editor =
3625 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3626 workspace.add_item(Box::new(editor.clone()), cx);
3627 editor.update(cx, |editor, cx| {
3628 editor.highlight_background::<Self>(
3629 ranges_to_highlight,
3630 |theme| theme.editor_highlighted_line_background,
3631 cx,
3632 );
3633 });
3634 })?;
3635
3636 Ok(())
3637 }
3638
3639 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3640 let project = self.project.clone()?;
3641 let buffer = self.buffer.read(cx);
3642 let newest_selection = self.selections.newest_anchor().clone();
3643 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3644 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3645 if start_buffer != end_buffer {
3646 return None;
3647 }
3648
3649 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3650 cx.background_executor()
3651 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3652 .await;
3653
3654 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3655 project.code_actions(&start_buffer, start..end, cx)
3656 }) {
3657 code_actions.await.log_err()
3658 } else {
3659 None
3660 };
3661
3662 this.update(&mut cx, |this, cx| {
3663 this.available_code_actions = actions.and_then(|actions| {
3664 if actions.is_empty() {
3665 None
3666 } else {
3667 Some((start_buffer, actions.into()))
3668 }
3669 });
3670 cx.notify();
3671 })
3672 .log_err();
3673 }));
3674 None
3675 }
3676
3677 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3678 if self.pending_rename.is_some() {
3679 return None;
3680 }
3681
3682 let project = self.project.clone()?;
3683 let buffer = self.buffer.read(cx);
3684 let newest_selection = self.selections.newest_anchor().clone();
3685 let cursor_position = newest_selection.head();
3686 let (cursor_buffer, cursor_buffer_position) =
3687 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3688 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3689 if cursor_buffer != tail_buffer {
3690 return None;
3691 }
3692
3693 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3694 cx.background_executor()
3695 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3696 .await;
3697
3698 let highlights = if let Some(highlights) = project
3699 .update(&mut cx, |project, cx| {
3700 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3701 })
3702 .log_err()
3703 {
3704 highlights.await.log_err()
3705 } else {
3706 None
3707 };
3708
3709 if let Some(highlights) = highlights {
3710 this.update(&mut cx, |this, cx| {
3711 if this.pending_rename.is_some() {
3712 return;
3713 }
3714
3715 let buffer_id = cursor_position.buffer_id;
3716 let buffer = this.buffer.read(cx);
3717 if !buffer
3718 .text_anchor_for_position(cursor_position, cx)
3719 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3720 {
3721 return;
3722 }
3723
3724 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3725 let mut write_ranges = Vec::new();
3726 let mut read_ranges = Vec::new();
3727 for highlight in highlights {
3728 for (excerpt_id, excerpt_range) in
3729 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3730 {
3731 let start = highlight
3732 .range
3733 .start
3734 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3735 let end = highlight
3736 .range
3737 .end
3738 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3739 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3740 continue;
3741 }
3742
3743 let range = Anchor {
3744 buffer_id,
3745 excerpt_id: excerpt_id.clone(),
3746 text_anchor: start,
3747 }..Anchor {
3748 buffer_id,
3749 excerpt_id,
3750 text_anchor: end,
3751 };
3752 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3753 write_ranges.push(range);
3754 } else {
3755 read_ranges.push(range);
3756 }
3757 }
3758 }
3759
3760 this.highlight_background::<DocumentHighlightRead>(
3761 read_ranges,
3762 |theme| theme.editor_document_highlight_read_background,
3763 cx,
3764 );
3765 this.highlight_background::<DocumentHighlightWrite>(
3766 write_ranges,
3767 |theme| theme.editor_document_highlight_write_background,
3768 cx,
3769 );
3770 cx.notify();
3771 })
3772 .log_err();
3773 }
3774 }));
3775 None
3776 }
3777
3778 fn refresh_copilot_suggestions(
3779 &mut self,
3780 debounce: bool,
3781 cx: &mut ViewContext<Self>,
3782 ) -> Option<()> {
3783 let copilot = Copilot::global(cx)?;
3784 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3785 self.clear_copilot_suggestions(cx);
3786 return None;
3787 }
3788 self.update_visible_copilot_suggestion(cx);
3789
3790 let snapshot = self.buffer.read(cx).snapshot(cx);
3791 let cursor = self.selections.newest_anchor().head();
3792 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3793 self.clear_copilot_suggestions(cx);
3794 return None;
3795 }
3796
3797 let (buffer, buffer_position) =
3798 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3799 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3800 if debounce {
3801 cx.background_executor()
3802 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3803 .await;
3804 }
3805
3806 let completions = copilot
3807 .update(&mut cx, |copilot, cx| {
3808 copilot.completions(&buffer, buffer_position, cx)
3809 })
3810 .log_err()
3811 .unwrap_or(Task::ready(Ok(Vec::new())))
3812 .await
3813 .log_err()
3814 .into_iter()
3815 .flatten()
3816 .collect_vec();
3817
3818 this.update(&mut cx, |this, cx| {
3819 if !completions.is_empty() {
3820 this.copilot_state.cycled = false;
3821 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3822 this.copilot_state.completions.clear();
3823 this.copilot_state.active_completion_index = 0;
3824 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3825 for completion in completions {
3826 this.copilot_state.push_completion(completion);
3827 }
3828 this.update_visible_copilot_suggestion(cx);
3829 }
3830 })
3831 .log_err()?;
3832 Some(())
3833 });
3834
3835 Some(())
3836 }
3837
3838 fn cycle_copilot_suggestions(
3839 &mut self,
3840 direction: Direction,
3841 cx: &mut ViewContext<Self>,
3842 ) -> Option<()> {
3843 let copilot = Copilot::global(cx)?;
3844 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3845 return None;
3846 }
3847
3848 if self.copilot_state.cycled {
3849 self.copilot_state.cycle_completions(direction);
3850 self.update_visible_copilot_suggestion(cx);
3851 } else {
3852 let cursor = self.selections.newest_anchor().head();
3853 let (buffer, buffer_position) =
3854 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3855 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3856 let completions = copilot
3857 .update(&mut cx, |copilot, cx| {
3858 copilot.completions_cycling(&buffer, buffer_position, cx)
3859 })
3860 .log_err()?
3861 .await;
3862
3863 this.update(&mut cx, |this, cx| {
3864 this.copilot_state.cycled = true;
3865 for completion in completions.log_err().into_iter().flatten() {
3866 this.copilot_state.push_completion(completion);
3867 }
3868 this.copilot_state.cycle_completions(direction);
3869 this.update_visible_copilot_suggestion(cx);
3870 })
3871 .log_err()?;
3872
3873 Some(())
3874 });
3875 }
3876
3877 Some(())
3878 }
3879
3880 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3881 if !self.has_active_copilot_suggestion(cx) {
3882 self.refresh_copilot_suggestions(false, cx);
3883 return;
3884 }
3885
3886 self.update_visible_copilot_suggestion(cx);
3887 }
3888
3889 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3890 self.show_cursor_names(cx);
3891 }
3892
3893 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3894 self.show_cursor_names = true;
3895 cx.notify();
3896 cx.spawn(|this, mut cx| async move {
3897 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3898 this.update(&mut cx, |this, cx| {
3899 this.show_cursor_names = false;
3900 cx.notify()
3901 })
3902 .ok()
3903 })
3904 .detach();
3905 }
3906
3907 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3908 if self.has_active_copilot_suggestion(cx) {
3909 self.cycle_copilot_suggestions(Direction::Next, cx);
3910 } else {
3911 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3912 if is_copilot_disabled {
3913 cx.propagate();
3914 }
3915 }
3916 }
3917
3918 fn previous_copilot_suggestion(
3919 &mut self,
3920 _: &copilot::PreviousSuggestion,
3921 cx: &mut ViewContext<Self>,
3922 ) {
3923 if self.has_active_copilot_suggestion(cx) {
3924 self.cycle_copilot_suggestions(Direction::Prev, cx);
3925 } else {
3926 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3927 if is_copilot_disabled {
3928 cx.propagate();
3929 }
3930 }
3931 }
3932
3933 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3934 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3935 if let Some((copilot, completion)) =
3936 Copilot::global(cx).zip(self.copilot_state.active_completion())
3937 {
3938 copilot
3939 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3940 .detach_and_log_err(cx);
3941
3942 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3943 }
3944 cx.emit(EditorEvent::InputHandled {
3945 utf16_range_to_replace: None,
3946 text: suggestion.text.to_string().into(),
3947 });
3948 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3949 cx.notify();
3950 true
3951 } else {
3952 false
3953 }
3954 }
3955
3956 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3957 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3958 if let Some(copilot) = Copilot::global(cx) {
3959 copilot
3960 .update(cx, |copilot, cx| {
3961 copilot.discard_completions(&self.copilot_state.completions, cx)
3962 })
3963 .detach_and_log_err(cx);
3964
3965 self.report_copilot_event(None, false, cx)
3966 }
3967
3968 self.display_map.update(cx, |map, cx| {
3969 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3970 });
3971 cx.notify();
3972 true
3973 } else {
3974 false
3975 }
3976 }
3977
3978 fn is_copilot_enabled_at(
3979 &self,
3980 location: Anchor,
3981 snapshot: &MultiBufferSnapshot,
3982 cx: &mut ViewContext<Self>,
3983 ) -> bool {
3984 let file = snapshot.file_at(location);
3985 let language = snapshot.language_at(location);
3986 let settings = all_language_settings(file, cx);
3987 self.show_copilot_suggestions
3988 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3989 }
3990
3991 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3992 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3993 let buffer = self.buffer.read(cx).read(cx);
3994 suggestion.position.is_valid(&buffer)
3995 } else {
3996 false
3997 }
3998 }
3999
4000 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4001 let suggestion = self.copilot_state.suggestion.take()?;
4002 self.display_map.update(cx, |map, cx| {
4003 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
4004 });
4005 let buffer = self.buffer.read(cx).read(cx);
4006
4007 if suggestion.position.is_valid(&buffer) {
4008 Some(suggestion)
4009 } else {
4010 None
4011 }
4012 }
4013
4014 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
4015 let snapshot = self.buffer.read(cx).snapshot(cx);
4016 let selection = self.selections.newest_anchor();
4017 let cursor = selection.head();
4018
4019 if self.context_menu.read().is_some()
4020 || !self.completion_tasks.is_empty()
4021 || selection.start != selection.end
4022 {
4023 self.discard_copilot_suggestion(cx);
4024 } else if let Some(text) = self
4025 .copilot_state
4026 .text_for_active_completion(cursor, &snapshot)
4027 {
4028 let text = Rope::from(text);
4029 let mut to_remove = Vec::new();
4030 if let Some(suggestion) = self.copilot_state.suggestion.take() {
4031 to_remove.push(suggestion.id);
4032 }
4033
4034 let suggestion_inlay =
4035 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4036 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
4037 self.display_map.update(cx, move |map, cx| {
4038 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
4039 });
4040 cx.notify();
4041 } else {
4042 self.discard_copilot_suggestion(cx);
4043 }
4044 }
4045
4046 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
4047 self.copilot_state = Default::default();
4048 self.discard_copilot_suggestion(cx);
4049 }
4050
4051 pub fn render_code_actions_indicator(
4052 &self,
4053 _style: &EditorStyle,
4054 is_active: bool,
4055 cx: &mut ViewContext<Self>,
4056 ) -> Option<IconButton> {
4057 if self.available_code_actions.is_some() {
4058 Some(
4059 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4060 .icon_size(IconSize::Small)
4061 .icon_color(Color::Muted)
4062 .selected(is_active)
4063 .on_click(cx.listener(|editor, _e, cx| {
4064 editor.toggle_code_actions(
4065 &ToggleCodeActions {
4066 deployed_from_indicator: true,
4067 },
4068 cx,
4069 );
4070 })),
4071 )
4072 } else {
4073 None
4074 }
4075 }
4076
4077 pub fn render_fold_indicators(
4078 &self,
4079 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4080 _style: &EditorStyle,
4081 gutter_hovered: bool,
4082 _line_height: Pixels,
4083 _gutter_margin: Pixels,
4084 editor_view: View<Editor>,
4085 ) -> Vec<Option<IconButton>> {
4086 fold_data
4087 .iter()
4088 .enumerate()
4089 .map(|(ix, fold_data)| {
4090 fold_data
4091 .map(|(fold_status, buffer_row, active)| {
4092 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4093 IconButton::new(ix as usize, ui::IconName::ChevronDown)
4094 .on_click({
4095 let view = editor_view.clone();
4096 move |_e, cx| {
4097 view.update(cx, |editor, cx| match fold_status {
4098 FoldStatus::Folded => {
4099 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
4100 }
4101 FoldStatus::Foldable => {
4102 editor.fold_at(&FoldAt { buffer_row }, cx);
4103 }
4104 })
4105 }
4106 })
4107 .icon_color(ui::Color::Muted)
4108 .icon_size(ui::IconSize::Small)
4109 .selected(fold_status == FoldStatus::Folded)
4110 .selected_icon(ui::IconName::ChevronRight)
4111 .size(ui::ButtonSize::None)
4112 })
4113 })
4114 .flatten()
4115 })
4116 .collect()
4117 }
4118
4119 pub fn context_menu_visible(&self) -> bool {
4120 self.context_menu
4121 .read()
4122 .as_ref()
4123 .map_or(false, |menu| menu.visible())
4124 }
4125
4126 pub fn render_context_menu(
4127 &self,
4128 cursor_position: DisplayPoint,
4129 style: &EditorStyle,
4130 max_height: Pixels,
4131 cx: &mut ViewContext<Editor>,
4132 ) -> Option<(DisplayPoint, AnyElement)> {
4133 self.context_menu.read().as_ref().map(|menu| {
4134 menu.render(
4135 cursor_position,
4136 style,
4137 max_height,
4138 self.workspace.as_ref().map(|(w, _)| w.clone()),
4139 cx,
4140 )
4141 })
4142 }
4143
4144 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4145 cx.notify();
4146 self.completion_tasks.clear();
4147 let context_menu = self.context_menu.write().take();
4148 if context_menu.is_some() {
4149 self.update_visible_copilot_suggestion(cx);
4150 }
4151 context_menu
4152 }
4153
4154 pub fn insert_snippet(
4155 &mut self,
4156 insertion_ranges: &[Range<usize>],
4157 snippet: Snippet,
4158 cx: &mut ViewContext<Self>,
4159 ) -> Result<()> {
4160 let tabstops = self.buffer.update(cx, |buffer, cx| {
4161 let snippet_text: Arc<str> = snippet.text.clone().into();
4162 buffer.edit(
4163 insertion_ranges
4164 .iter()
4165 .cloned()
4166 .map(|range| (range, snippet_text.clone())),
4167 Some(AutoindentMode::EachLine),
4168 cx,
4169 );
4170
4171 let snapshot = &*buffer.read(cx);
4172 let snippet = &snippet;
4173 snippet
4174 .tabstops
4175 .iter()
4176 .map(|tabstop| {
4177 let mut tabstop_ranges = tabstop
4178 .iter()
4179 .flat_map(|tabstop_range| {
4180 let mut delta = 0_isize;
4181 insertion_ranges.iter().map(move |insertion_range| {
4182 let insertion_start = insertion_range.start as isize + delta;
4183 delta +=
4184 snippet.text.len() as isize - insertion_range.len() as isize;
4185
4186 let start = snapshot.anchor_before(
4187 (insertion_start + tabstop_range.start) as usize,
4188 );
4189 let end = snapshot
4190 .anchor_after((insertion_start + tabstop_range.end) as usize);
4191 start..end
4192 })
4193 })
4194 .collect::<Vec<_>>();
4195 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4196 tabstop_ranges
4197 })
4198 .collect::<Vec<_>>()
4199 });
4200
4201 if let Some(tabstop) = tabstops.first() {
4202 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4203 s.select_ranges(tabstop.iter().cloned());
4204 });
4205 self.snippet_stack.push(SnippetState {
4206 active_index: 0,
4207 ranges: tabstops,
4208 });
4209 }
4210
4211 Ok(())
4212 }
4213
4214 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4215 self.move_to_snippet_tabstop(Bias::Right, cx)
4216 }
4217
4218 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4219 self.move_to_snippet_tabstop(Bias::Left, cx)
4220 }
4221
4222 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4223 if let Some(mut snippet) = self.snippet_stack.pop() {
4224 match bias {
4225 Bias::Left => {
4226 if snippet.active_index > 0 {
4227 snippet.active_index -= 1;
4228 } else {
4229 self.snippet_stack.push(snippet);
4230 return false;
4231 }
4232 }
4233 Bias::Right => {
4234 if snippet.active_index + 1 < snippet.ranges.len() {
4235 snippet.active_index += 1;
4236 } else {
4237 self.snippet_stack.push(snippet);
4238 return false;
4239 }
4240 }
4241 }
4242 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4243 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4244 s.select_anchor_ranges(current_ranges.iter().cloned())
4245 });
4246 // If snippet state is not at the last tabstop, push it back on the stack
4247 if snippet.active_index + 1 < snippet.ranges.len() {
4248 self.snippet_stack.push(snippet);
4249 }
4250 return true;
4251 }
4252 }
4253
4254 false
4255 }
4256
4257 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4258 self.transact(cx, |this, cx| {
4259 this.select_all(&SelectAll, cx);
4260 this.insert("", cx);
4261 });
4262 }
4263
4264 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4265 self.transact(cx, |this, cx| {
4266 this.select_autoclose_pair(cx);
4267 let mut selections = this.selections.all::<Point>(cx);
4268 if !this.selections.line_mode {
4269 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4270 for selection in &mut selections {
4271 if selection.is_empty() {
4272 let old_head = selection.head();
4273 let mut new_head =
4274 movement::left(&display_map, old_head.to_display_point(&display_map))
4275 .to_point(&display_map);
4276 if let Some((buffer, line_buffer_range)) = display_map
4277 .buffer_snapshot
4278 .buffer_line_for_row(old_head.row)
4279 {
4280 let indent_size =
4281 buffer.indent_size_for_line(line_buffer_range.start.row);
4282 let indent_len = match indent_size.kind {
4283 IndentKind::Space => {
4284 buffer.settings_at(line_buffer_range.start, cx).tab_size
4285 }
4286 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4287 };
4288 if old_head.column <= indent_size.len && old_head.column > 0 {
4289 let indent_len = indent_len.get();
4290 new_head = cmp::min(
4291 new_head,
4292 Point::new(
4293 old_head.row,
4294 ((old_head.column - 1) / indent_len) * indent_len,
4295 ),
4296 );
4297 }
4298 }
4299
4300 selection.set_head(new_head, SelectionGoal::None);
4301 }
4302 }
4303 }
4304
4305 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4306 this.insert("", cx);
4307 this.refresh_copilot_suggestions(true, cx);
4308 });
4309 }
4310
4311 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4312 self.transact(cx, |this, cx| {
4313 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4314 let line_mode = s.line_mode;
4315 s.move_with(|map, selection| {
4316 if selection.is_empty() && !line_mode {
4317 let cursor = movement::right(map, selection.head());
4318 selection.end = cursor;
4319 selection.reversed = true;
4320 selection.goal = SelectionGoal::None;
4321 }
4322 })
4323 });
4324 this.insert("", cx);
4325 this.refresh_copilot_suggestions(true, cx);
4326 });
4327 }
4328
4329 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4330 if self.move_to_prev_snippet_tabstop(cx) {
4331 return;
4332 }
4333
4334 self.outdent(&Outdent, cx);
4335 }
4336
4337 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4338 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4339 return;
4340 }
4341
4342 let mut selections = self.selections.all_adjusted(cx);
4343 let buffer = self.buffer.read(cx);
4344 let snapshot = buffer.snapshot(cx);
4345 let rows_iter = selections.iter().map(|s| s.head().row);
4346 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4347
4348 let mut edits = Vec::new();
4349 let mut prev_edited_row = 0;
4350 let mut row_delta = 0;
4351 for selection in &mut selections {
4352 if selection.start.row != prev_edited_row {
4353 row_delta = 0;
4354 }
4355 prev_edited_row = selection.end.row;
4356
4357 // If the selection is non-empty, then increase the indentation of the selected lines.
4358 if !selection.is_empty() {
4359 row_delta =
4360 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4361 continue;
4362 }
4363
4364 // If the selection is empty and the cursor is in the leading whitespace before the
4365 // suggested indentation, then auto-indent the line.
4366 let cursor = selection.head();
4367 let current_indent = snapshot.indent_size_for_line(cursor.row);
4368 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4369 if cursor.column < suggested_indent.len
4370 && cursor.column <= current_indent.len
4371 && current_indent.len <= suggested_indent.len
4372 {
4373 selection.start = Point::new(cursor.row, suggested_indent.len);
4374 selection.end = selection.start;
4375 if row_delta == 0 {
4376 edits.extend(Buffer::edit_for_indent_size_adjustment(
4377 cursor.row,
4378 current_indent,
4379 suggested_indent,
4380 ));
4381 row_delta = suggested_indent.len - current_indent.len;
4382 }
4383 continue;
4384 }
4385 }
4386
4387 // Accept copilot suggestion if there is only one selection and the cursor is not
4388 // in the leading whitespace.
4389 if self.selections.count() == 1
4390 && cursor.column >= current_indent.len
4391 && self.has_active_copilot_suggestion(cx)
4392 {
4393 self.accept_copilot_suggestion(cx);
4394 return;
4395 }
4396
4397 // Otherwise, insert a hard or soft tab.
4398 let settings = buffer.settings_at(cursor, cx);
4399 let tab_size = if settings.hard_tabs {
4400 IndentSize::tab()
4401 } else {
4402 let tab_size = settings.tab_size.get();
4403 let char_column = snapshot
4404 .text_for_range(Point::new(cursor.row, 0)..cursor)
4405 .flat_map(str::chars)
4406 .count()
4407 + row_delta as usize;
4408 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4409 IndentSize::spaces(chars_to_next_tab_stop)
4410 };
4411 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4412 selection.end = selection.start;
4413 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4414 row_delta += tab_size.len;
4415 }
4416
4417 self.transact(cx, |this, cx| {
4418 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4419 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4420 this.refresh_copilot_suggestions(true, cx);
4421 });
4422 }
4423
4424 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4425 let mut selections = self.selections.all::<Point>(cx);
4426 let mut prev_edited_row = 0;
4427 let mut row_delta = 0;
4428 let mut edits = Vec::new();
4429 let buffer = self.buffer.read(cx);
4430 let snapshot = buffer.snapshot(cx);
4431 for selection in &mut selections {
4432 if selection.start.row != prev_edited_row {
4433 row_delta = 0;
4434 }
4435 prev_edited_row = selection.end.row;
4436
4437 row_delta =
4438 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4439 }
4440
4441 self.transact(cx, |this, cx| {
4442 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4443 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4444 });
4445 }
4446
4447 fn indent_selection(
4448 buffer: &MultiBuffer,
4449 snapshot: &MultiBufferSnapshot,
4450 selection: &mut Selection<Point>,
4451 edits: &mut Vec<(Range<Point>, String)>,
4452 delta_for_start_row: u32,
4453 cx: &AppContext,
4454 ) -> u32 {
4455 let settings = buffer.settings_at(selection.start, cx);
4456 let tab_size = settings.tab_size.get();
4457 let indent_kind = if settings.hard_tabs {
4458 IndentKind::Tab
4459 } else {
4460 IndentKind::Space
4461 };
4462 let mut start_row = selection.start.row;
4463 let mut end_row = selection.end.row + 1;
4464
4465 // If a selection ends at the beginning of a line, don't indent
4466 // that last line.
4467 if selection.end.column == 0 {
4468 end_row -= 1;
4469 }
4470
4471 // Avoid re-indenting a row that has already been indented by a
4472 // previous selection, but still update this selection's column
4473 // to reflect that indentation.
4474 if delta_for_start_row > 0 {
4475 start_row += 1;
4476 selection.start.column += delta_for_start_row;
4477 if selection.end.row == selection.start.row {
4478 selection.end.column += delta_for_start_row;
4479 }
4480 }
4481
4482 let mut delta_for_end_row = 0;
4483 for row in start_row..end_row {
4484 let current_indent = snapshot.indent_size_for_line(row);
4485 let indent_delta = match (current_indent.kind, indent_kind) {
4486 (IndentKind::Space, IndentKind::Space) => {
4487 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4488 IndentSize::spaces(columns_to_next_tab_stop)
4489 }
4490 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4491 (_, IndentKind::Tab) => IndentSize::tab(),
4492 };
4493
4494 let row_start = Point::new(row, 0);
4495 edits.push((
4496 row_start..row_start,
4497 indent_delta.chars().collect::<String>(),
4498 ));
4499
4500 // Update this selection's endpoints to reflect the indentation.
4501 if row == selection.start.row {
4502 selection.start.column += indent_delta.len;
4503 }
4504 if row == selection.end.row {
4505 selection.end.column += indent_delta.len;
4506 delta_for_end_row = indent_delta.len;
4507 }
4508 }
4509
4510 if selection.start.row == selection.end.row {
4511 delta_for_start_row + delta_for_end_row
4512 } else {
4513 delta_for_end_row
4514 }
4515 }
4516
4517 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4518 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4519 let selections = self.selections.all::<Point>(cx);
4520 let mut deletion_ranges = Vec::new();
4521 let mut last_outdent = None;
4522 {
4523 let buffer = self.buffer.read(cx);
4524 let snapshot = buffer.snapshot(cx);
4525 for selection in &selections {
4526 let settings = buffer.settings_at(selection.start, cx);
4527 let tab_size = settings.tab_size.get();
4528 let mut rows = selection.spanned_rows(false, &display_map);
4529
4530 // Avoid re-outdenting a row that has already been outdented by a
4531 // previous selection.
4532 if let Some(last_row) = last_outdent {
4533 if last_row == rows.start {
4534 rows.start += 1;
4535 }
4536 }
4537
4538 for row in rows {
4539 let indent_size = snapshot.indent_size_for_line(row);
4540 if indent_size.len > 0 {
4541 let deletion_len = match indent_size.kind {
4542 IndentKind::Space => {
4543 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4544 if columns_to_prev_tab_stop == 0 {
4545 tab_size
4546 } else {
4547 columns_to_prev_tab_stop
4548 }
4549 }
4550 IndentKind::Tab => 1,
4551 };
4552 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4553 last_outdent = Some(row);
4554 }
4555 }
4556 }
4557 }
4558
4559 self.transact(cx, |this, cx| {
4560 this.buffer.update(cx, |buffer, cx| {
4561 let empty_str: Arc<str> = "".into();
4562 buffer.edit(
4563 deletion_ranges
4564 .into_iter()
4565 .map(|range| (range, empty_str.clone())),
4566 None,
4567 cx,
4568 );
4569 });
4570 let selections = this.selections.all::<usize>(cx);
4571 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4572 });
4573 }
4574
4575 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4576 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4577 let selections = self.selections.all::<Point>(cx);
4578
4579 let mut new_cursors = Vec::new();
4580 let mut edit_ranges = Vec::new();
4581 let mut selections = selections.iter().peekable();
4582 while let Some(selection) = selections.next() {
4583 let mut rows = selection.spanned_rows(false, &display_map);
4584 let goal_display_column = selection.head().to_display_point(&display_map).column();
4585
4586 // Accumulate contiguous regions of rows that we want to delete.
4587 while let Some(next_selection) = selections.peek() {
4588 let next_rows = next_selection.spanned_rows(false, &display_map);
4589 if next_rows.start <= rows.end {
4590 rows.end = next_rows.end;
4591 selections.next().unwrap();
4592 } else {
4593 break;
4594 }
4595 }
4596
4597 let buffer = &display_map.buffer_snapshot;
4598 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4599 let edit_end;
4600 let cursor_buffer_row;
4601 if buffer.max_point().row >= rows.end {
4602 // If there's a line after the range, delete the \n from the end of the row range
4603 // and position the cursor on the next line.
4604 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4605 cursor_buffer_row = rows.end;
4606 } else {
4607 // If there isn't a line after the range, delete the \n from the line before the
4608 // start of the row range and position the cursor there.
4609 edit_start = edit_start.saturating_sub(1);
4610 edit_end = buffer.len();
4611 cursor_buffer_row = rows.start.saturating_sub(1);
4612 }
4613
4614 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4615 *cursor.column_mut() =
4616 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4617
4618 new_cursors.push((
4619 selection.id,
4620 buffer.anchor_after(cursor.to_point(&display_map)),
4621 ));
4622 edit_ranges.push(edit_start..edit_end);
4623 }
4624
4625 self.transact(cx, |this, cx| {
4626 let buffer = this.buffer.update(cx, |buffer, cx| {
4627 let empty_str: Arc<str> = "".into();
4628 buffer.edit(
4629 edit_ranges
4630 .into_iter()
4631 .map(|range| (range, empty_str.clone())),
4632 None,
4633 cx,
4634 );
4635 buffer.snapshot(cx)
4636 });
4637 let new_selections = new_cursors
4638 .into_iter()
4639 .map(|(id, cursor)| {
4640 let cursor = cursor.to_point(&buffer);
4641 Selection {
4642 id,
4643 start: cursor,
4644 end: cursor,
4645 reversed: false,
4646 goal: SelectionGoal::None,
4647 }
4648 })
4649 .collect();
4650
4651 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4652 s.select(new_selections);
4653 });
4654 });
4655 }
4656
4657 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4658 let mut row_ranges = Vec::<Range<u32>>::new();
4659 for selection in self.selections.all::<Point>(cx) {
4660 let start = selection.start.row;
4661 let end = if selection.start.row == selection.end.row {
4662 selection.start.row + 1
4663 } else {
4664 selection.end.row
4665 };
4666
4667 if let Some(last_row_range) = row_ranges.last_mut() {
4668 if start <= last_row_range.end {
4669 last_row_range.end = end;
4670 continue;
4671 }
4672 }
4673 row_ranges.push(start..end);
4674 }
4675
4676 let snapshot = self.buffer.read(cx).snapshot(cx);
4677 let mut cursor_positions = Vec::new();
4678 for row_range in &row_ranges {
4679 let anchor = snapshot.anchor_before(Point::new(
4680 row_range.end - 1,
4681 snapshot.line_len(row_range.end - 1),
4682 ));
4683 cursor_positions.push(anchor.clone()..anchor);
4684 }
4685
4686 self.transact(cx, |this, cx| {
4687 for row_range in row_ranges.into_iter().rev() {
4688 for row in row_range.rev() {
4689 let end_of_line = Point::new(row, snapshot.line_len(row));
4690 let indent = snapshot.indent_size_for_line(row + 1);
4691 let start_of_next_line = Point::new(row + 1, indent.len);
4692
4693 let replace = if snapshot.line_len(row + 1) > indent.len {
4694 " "
4695 } else {
4696 ""
4697 };
4698
4699 this.buffer.update(cx, |buffer, cx| {
4700 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4701 });
4702 }
4703 }
4704
4705 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4706 s.select_anchor_ranges(cursor_positions)
4707 });
4708 });
4709 }
4710
4711 pub fn sort_lines_case_sensitive(
4712 &mut self,
4713 _: &SortLinesCaseSensitive,
4714 cx: &mut ViewContext<Self>,
4715 ) {
4716 self.manipulate_lines(cx, |lines| lines.sort())
4717 }
4718
4719 pub fn sort_lines_case_insensitive(
4720 &mut self,
4721 _: &SortLinesCaseInsensitive,
4722 cx: &mut ViewContext<Self>,
4723 ) {
4724 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4725 }
4726
4727 pub fn unique_lines_case_insensitive(
4728 &mut self,
4729 _: &UniqueLinesCaseInsensitive,
4730 cx: &mut ViewContext<Self>,
4731 ) {
4732 self.manipulate_lines(cx, |lines| {
4733 let mut seen = HashSet::default();
4734 lines.retain(|line| seen.insert(line.to_lowercase()));
4735 })
4736 }
4737
4738 pub fn unique_lines_case_sensitive(
4739 &mut self,
4740 _: &UniqueLinesCaseSensitive,
4741 cx: &mut ViewContext<Self>,
4742 ) {
4743 self.manipulate_lines(cx, |lines| {
4744 let mut seen = HashSet::default();
4745 lines.retain(|line| seen.insert(*line));
4746 })
4747 }
4748
4749 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4750 self.manipulate_lines(cx, |lines| lines.reverse())
4751 }
4752
4753 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4754 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4755 }
4756
4757 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4758 where
4759 Fn: FnMut(&mut Vec<&str>),
4760 {
4761 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4762 let buffer = self.buffer.read(cx).snapshot(cx);
4763
4764 let mut edits = Vec::new();
4765
4766 let selections = self.selections.all::<Point>(cx);
4767 let mut selections = selections.iter().peekable();
4768 let mut contiguous_row_selections = Vec::new();
4769 let mut new_selections = Vec::new();
4770 let mut added_lines = 0;
4771 let mut removed_lines = 0;
4772
4773 while let Some(selection) = selections.next() {
4774 let (start_row, end_row) = consume_contiguous_rows(
4775 &mut contiguous_row_selections,
4776 selection,
4777 &display_map,
4778 &mut selections,
4779 );
4780
4781 let start_point = Point::new(start_row, 0);
4782 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4783 let text = buffer
4784 .text_for_range(start_point..end_point)
4785 .collect::<String>();
4786
4787 let mut lines = text.split("\n").collect_vec();
4788
4789 let lines_before = lines.len();
4790 callback(&mut lines);
4791 let lines_after = lines.len();
4792
4793 edits.push((start_point..end_point, lines.join("\n")));
4794
4795 // Selections must change based on added and removed line count
4796 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
4797 let end_row = start_row + lines_after.saturating_sub(1) as u32;
4798 new_selections.push(Selection {
4799 id: selection.id,
4800 start: start_row,
4801 end: end_row,
4802 goal: SelectionGoal::None,
4803 reversed: selection.reversed,
4804 });
4805
4806 if lines_after > lines_before {
4807 added_lines += lines_after - lines_before;
4808 } else if lines_before > lines_after {
4809 removed_lines += lines_before - lines_after;
4810 }
4811 }
4812
4813 self.transact(cx, |this, cx| {
4814 let buffer = this.buffer.update(cx, |buffer, cx| {
4815 buffer.edit(edits, None, cx);
4816 buffer.snapshot(cx)
4817 });
4818
4819 // Recalculate offsets on newly edited buffer
4820 let new_selections = new_selections
4821 .iter()
4822 .map(|s| {
4823 let start_point = Point::new(s.start, 0);
4824 let end_point = Point::new(s.end, buffer.line_len(s.end));
4825 Selection {
4826 id: s.id,
4827 start: buffer.point_to_offset(start_point),
4828 end: buffer.point_to_offset(end_point),
4829 goal: s.goal,
4830 reversed: s.reversed,
4831 }
4832 })
4833 .collect();
4834
4835 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4836 s.select(new_selections);
4837 });
4838
4839 this.request_autoscroll(Autoscroll::fit(), cx);
4840 });
4841 }
4842
4843 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4844 self.manipulate_text(cx, |text| text.to_uppercase())
4845 }
4846
4847 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4848 self.manipulate_text(cx, |text| text.to_lowercase())
4849 }
4850
4851 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4852 self.manipulate_text(cx, |text| {
4853 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4854 // https://github.com/rutrum/convert-case/issues/16
4855 text.split("\n")
4856 .map(|line| line.to_case(Case::Title))
4857 .join("\n")
4858 })
4859 }
4860
4861 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4862 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4863 }
4864
4865 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4866 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4867 }
4868
4869 pub fn convert_to_upper_camel_case(
4870 &mut self,
4871 _: &ConvertToUpperCamelCase,
4872 cx: &mut ViewContext<Self>,
4873 ) {
4874 self.manipulate_text(cx, |text| {
4875 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4876 // https://github.com/rutrum/convert-case/issues/16
4877 text.split("\n")
4878 .map(|line| line.to_case(Case::UpperCamel))
4879 .join("\n")
4880 })
4881 }
4882
4883 pub fn convert_to_lower_camel_case(
4884 &mut self,
4885 _: &ConvertToLowerCamelCase,
4886 cx: &mut ViewContext<Self>,
4887 ) {
4888 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4889 }
4890
4891 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4892 where
4893 Fn: FnMut(&str) -> String,
4894 {
4895 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4896 let buffer = self.buffer.read(cx).snapshot(cx);
4897
4898 let mut new_selections = Vec::new();
4899 let mut edits = Vec::new();
4900 let mut selection_adjustment = 0i32;
4901
4902 for selection in self.selections.all::<usize>(cx) {
4903 let selection_is_empty = selection.is_empty();
4904
4905 let (start, end) = if selection_is_empty {
4906 let word_range = movement::surrounding_word(
4907 &display_map,
4908 selection.start.to_display_point(&display_map),
4909 );
4910 let start = word_range.start.to_offset(&display_map, Bias::Left);
4911 let end = word_range.end.to_offset(&display_map, Bias::Left);
4912 (start, end)
4913 } else {
4914 (selection.start, selection.end)
4915 };
4916
4917 let text = buffer.text_for_range(start..end).collect::<String>();
4918 let old_length = text.len() as i32;
4919 let text = callback(&text);
4920
4921 new_selections.push(Selection {
4922 start: (start as i32 - selection_adjustment) as usize,
4923 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4924 goal: SelectionGoal::None,
4925 ..selection
4926 });
4927
4928 selection_adjustment += old_length - text.len() as i32;
4929
4930 edits.push((start..end, text));
4931 }
4932
4933 self.transact(cx, |this, cx| {
4934 this.buffer.update(cx, |buffer, cx| {
4935 buffer.edit(edits, None, cx);
4936 });
4937
4938 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4939 s.select(new_selections);
4940 });
4941
4942 this.request_autoscroll(Autoscroll::fit(), cx);
4943 });
4944 }
4945
4946 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4947 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4948 let buffer = &display_map.buffer_snapshot;
4949 let selections = self.selections.all::<Point>(cx);
4950
4951 let mut edits = Vec::new();
4952 let mut selections_iter = selections.iter().peekable();
4953 while let Some(selection) = selections_iter.next() {
4954 // Avoid duplicating the same lines twice.
4955 let mut rows = selection.spanned_rows(false, &display_map);
4956
4957 while let Some(next_selection) = selections_iter.peek() {
4958 let next_rows = next_selection.spanned_rows(false, &display_map);
4959 if next_rows.start < rows.end {
4960 rows.end = next_rows.end;
4961 selections_iter.next().unwrap();
4962 } else {
4963 break;
4964 }
4965 }
4966
4967 // Copy the text from the selected row region and splice it at the start of the region.
4968 let start = Point::new(rows.start, 0);
4969 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
4970 let text = buffer
4971 .text_for_range(start..end)
4972 .chain(Some("\n"))
4973 .collect::<String>();
4974 edits.push((start..start, text));
4975 }
4976
4977 self.transact(cx, |this, cx| {
4978 this.buffer.update(cx, |buffer, cx| {
4979 buffer.edit(edits, None, cx);
4980 });
4981
4982 this.request_autoscroll(Autoscroll::fit(), cx);
4983 });
4984 }
4985
4986 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
4987 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4988 let buffer = self.buffer.read(cx).snapshot(cx);
4989
4990 let mut edits = Vec::new();
4991 let mut unfold_ranges = Vec::new();
4992 let mut refold_ranges = Vec::new();
4993
4994 let selections = self.selections.all::<Point>(cx);
4995 let mut selections = selections.iter().peekable();
4996 let mut contiguous_row_selections = Vec::new();
4997 let mut new_selections = Vec::new();
4998
4999 while let Some(selection) = selections.next() {
5000 // Find all the selections that span a contiguous row range
5001 let (start_row, end_row) = consume_contiguous_rows(
5002 &mut contiguous_row_selections,
5003 selection,
5004 &display_map,
5005 &mut selections,
5006 );
5007
5008 // Move the text spanned by the row range to be before the line preceding the row range
5009 if start_row > 0 {
5010 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5011 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5012 let insertion_point = display_map
5013 .prev_line_boundary(Point::new(start_row - 1, 0))
5014 .0;
5015
5016 // Don't move lines across excerpts
5017 if buffer
5018 .excerpt_boundaries_in_range((
5019 Bound::Excluded(insertion_point),
5020 Bound::Included(range_to_move.end),
5021 ))
5022 .next()
5023 .is_none()
5024 {
5025 let text = buffer
5026 .text_for_range(range_to_move.clone())
5027 .flat_map(|s| s.chars())
5028 .skip(1)
5029 .chain(['\n'])
5030 .collect::<String>();
5031
5032 edits.push((
5033 buffer.anchor_after(range_to_move.start)
5034 ..buffer.anchor_before(range_to_move.end),
5035 String::new(),
5036 ));
5037 let insertion_anchor = buffer.anchor_after(insertion_point);
5038 edits.push((insertion_anchor..insertion_anchor, text));
5039
5040 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5041
5042 // Move selections up
5043 new_selections.extend(contiguous_row_selections.drain(..).map(
5044 |mut selection| {
5045 selection.start.row -= row_delta;
5046 selection.end.row -= row_delta;
5047 selection
5048 },
5049 ));
5050
5051 // Move folds up
5052 unfold_ranges.push(range_to_move.clone());
5053 for fold in display_map.folds_in_range(
5054 buffer.anchor_before(range_to_move.start)
5055 ..buffer.anchor_after(range_to_move.end),
5056 ) {
5057 let mut start = fold.range.start.to_point(&buffer);
5058 let mut end = fold.range.end.to_point(&buffer);
5059 start.row -= row_delta;
5060 end.row -= row_delta;
5061 refold_ranges.push(start..end);
5062 }
5063 }
5064 }
5065
5066 // If we didn't move line(s), preserve the existing selections
5067 new_selections.append(&mut contiguous_row_selections);
5068 }
5069
5070 self.transact(cx, |this, cx| {
5071 this.unfold_ranges(unfold_ranges, true, true, cx);
5072 this.buffer.update(cx, |buffer, cx| {
5073 for (range, text) in edits {
5074 buffer.edit([(range, text)], None, cx);
5075 }
5076 });
5077 this.fold_ranges(refold_ranges, true, cx);
5078 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5079 s.select(new_selections);
5080 })
5081 });
5082 }
5083
5084 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5085 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5086 let buffer = self.buffer.read(cx).snapshot(cx);
5087
5088 let mut edits = Vec::new();
5089 let mut unfold_ranges = Vec::new();
5090 let mut refold_ranges = Vec::new();
5091
5092 let selections = self.selections.all::<Point>(cx);
5093 let mut selections = selections.iter().peekable();
5094 let mut contiguous_row_selections = Vec::new();
5095 let mut new_selections = Vec::new();
5096
5097 while let Some(selection) = selections.next() {
5098 // Find all the selections that span a contiguous row range
5099 let (start_row, end_row) = consume_contiguous_rows(
5100 &mut contiguous_row_selections,
5101 selection,
5102 &display_map,
5103 &mut selections,
5104 );
5105
5106 // Move the text spanned by the row range to be after the last line of the row range
5107 if end_row <= buffer.max_point().row {
5108 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5109 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5110
5111 // Don't move lines across excerpt boundaries
5112 if buffer
5113 .excerpt_boundaries_in_range((
5114 Bound::Excluded(range_to_move.start),
5115 Bound::Included(insertion_point),
5116 ))
5117 .next()
5118 .is_none()
5119 {
5120 let mut text = String::from("\n");
5121 text.extend(buffer.text_for_range(range_to_move.clone()));
5122 text.pop(); // Drop trailing newline
5123 edits.push((
5124 buffer.anchor_after(range_to_move.start)
5125 ..buffer.anchor_before(range_to_move.end),
5126 String::new(),
5127 ));
5128 let insertion_anchor = buffer.anchor_after(insertion_point);
5129 edits.push((insertion_anchor..insertion_anchor, text));
5130
5131 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5132
5133 // Move selections down
5134 new_selections.extend(contiguous_row_selections.drain(..).map(
5135 |mut selection| {
5136 selection.start.row += row_delta;
5137 selection.end.row += row_delta;
5138 selection
5139 },
5140 ));
5141
5142 // Move folds down
5143 unfold_ranges.push(range_to_move.clone());
5144 for fold in display_map.folds_in_range(
5145 buffer.anchor_before(range_to_move.start)
5146 ..buffer.anchor_after(range_to_move.end),
5147 ) {
5148 let mut start = fold.range.start.to_point(&buffer);
5149 let mut end = fold.range.end.to_point(&buffer);
5150 start.row += row_delta;
5151 end.row += row_delta;
5152 refold_ranges.push(start..end);
5153 }
5154 }
5155 }
5156
5157 // If we didn't move line(s), preserve the existing selections
5158 new_selections.append(&mut contiguous_row_selections);
5159 }
5160
5161 self.transact(cx, |this, cx| {
5162 this.unfold_ranges(unfold_ranges, true, true, cx);
5163 this.buffer.update(cx, |buffer, cx| {
5164 for (range, text) in edits {
5165 buffer.edit([(range, text)], None, cx);
5166 }
5167 });
5168 this.fold_ranges(refold_ranges, true, cx);
5169 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5170 });
5171 }
5172
5173 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5174 let text_layout_details = &self.text_layout_details(cx);
5175 self.transact(cx, |this, cx| {
5176 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5177 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5178 let line_mode = s.line_mode;
5179 s.move_with(|display_map, selection| {
5180 if !selection.is_empty() || line_mode {
5181 return;
5182 }
5183
5184 let mut head = selection.head();
5185 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5186 if head.column() == display_map.line_len(head.row()) {
5187 transpose_offset = display_map
5188 .buffer_snapshot
5189 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5190 }
5191
5192 if transpose_offset == 0 {
5193 return;
5194 }
5195
5196 *head.column_mut() += 1;
5197 head = display_map.clip_point(head, Bias::Right);
5198 let goal = SelectionGoal::HorizontalPosition(
5199 display_map
5200 .x_for_display_point(head, &text_layout_details)
5201 .into(),
5202 );
5203 selection.collapse_to(head, goal);
5204
5205 let transpose_start = display_map
5206 .buffer_snapshot
5207 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5208 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5209 let transpose_end = display_map
5210 .buffer_snapshot
5211 .clip_offset(transpose_offset + 1, Bias::Right);
5212 if let Some(ch) =
5213 display_map.buffer_snapshot.chars_at(transpose_start).next()
5214 {
5215 edits.push((transpose_start..transpose_offset, String::new()));
5216 edits.push((transpose_end..transpose_end, ch.to_string()));
5217 }
5218 }
5219 });
5220 edits
5221 });
5222 this.buffer
5223 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5224 let selections = this.selections.all::<usize>(cx);
5225 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5226 s.select(selections);
5227 });
5228 });
5229 }
5230
5231 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5232 let mut text = String::new();
5233 let buffer = self.buffer.read(cx).snapshot(cx);
5234 let mut selections = self.selections.all::<Point>(cx);
5235 let mut clipboard_selections = Vec::with_capacity(selections.len());
5236 {
5237 let max_point = buffer.max_point();
5238 let mut is_first = true;
5239 for selection in &mut selections {
5240 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5241 if is_entire_line {
5242 selection.start = Point::new(selection.start.row, 0);
5243 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5244 selection.goal = SelectionGoal::None;
5245 }
5246 if is_first {
5247 is_first = false;
5248 } else {
5249 text += "\n";
5250 }
5251 let mut len = 0;
5252 for chunk in buffer.text_for_range(selection.start..selection.end) {
5253 text.push_str(chunk);
5254 len += chunk.len();
5255 }
5256 clipboard_selections.push(ClipboardSelection {
5257 len,
5258 is_entire_line,
5259 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5260 });
5261 }
5262 }
5263
5264 self.transact(cx, |this, cx| {
5265 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5266 s.select(selections);
5267 });
5268 this.insert("", cx);
5269 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5270 });
5271 }
5272
5273 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5274 let selections = self.selections.all::<Point>(cx);
5275 let buffer = self.buffer.read(cx).read(cx);
5276 let mut text = String::new();
5277
5278 let mut clipboard_selections = Vec::with_capacity(selections.len());
5279 {
5280 let max_point = buffer.max_point();
5281 let mut is_first = true;
5282 for selection in selections.iter() {
5283 let mut start = selection.start;
5284 let mut end = selection.end;
5285 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5286 if is_entire_line {
5287 start = Point::new(start.row, 0);
5288 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5289 }
5290 if is_first {
5291 is_first = false;
5292 } else {
5293 text += "\n";
5294 }
5295 let mut len = 0;
5296 for chunk in buffer.text_for_range(start..end) {
5297 text.push_str(chunk);
5298 len += chunk.len();
5299 }
5300 clipboard_selections.push(ClipboardSelection {
5301 len,
5302 is_entire_line,
5303 first_line_indent: buffer.indent_size_for_line(start.row).len,
5304 });
5305 }
5306 }
5307
5308 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5309 }
5310
5311 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5312 if self.read_only(cx) {
5313 return;
5314 }
5315
5316 self.transact(cx, |this, cx| {
5317 if let Some(item) = cx.read_from_clipboard() {
5318 let clipboard_text = Cow::Borrowed(item.text());
5319 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5320 let old_selections = this.selections.all::<usize>(cx);
5321 let all_selections_were_entire_line =
5322 clipboard_selections.iter().all(|s| s.is_entire_line);
5323 let first_selection_indent_column =
5324 clipboard_selections.first().map(|s| s.first_line_indent);
5325 if clipboard_selections.len() != old_selections.len() {
5326 clipboard_selections.drain(..);
5327 }
5328
5329 this.buffer.update(cx, |buffer, cx| {
5330 let snapshot = buffer.read(cx);
5331 let mut start_offset = 0;
5332 let mut edits = Vec::new();
5333 let mut original_indent_columns = Vec::new();
5334 let line_mode = this.selections.line_mode;
5335 for (ix, selection) in old_selections.iter().enumerate() {
5336 let to_insert;
5337 let entire_line;
5338 let original_indent_column;
5339 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5340 let end_offset = start_offset + clipboard_selection.len;
5341 to_insert = &clipboard_text[start_offset..end_offset];
5342 entire_line = clipboard_selection.is_entire_line;
5343 start_offset = end_offset + 1;
5344 original_indent_column =
5345 Some(clipboard_selection.first_line_indent);
5346 } else {
5347 to_insert = clipboard_text.as_str();
5348 entire_line = all_selections_were_entire_line;
5349 original_indent_column = first_selection_indent_column
5350 }
5351
5352 // If the corresponding selection was empty when this slice of the
5353 // clipboard text was written, then the entire line containing the
5354 // selection was copied. If this selection is also currently empty,
5355 // then paste the line before the current line of the buffer.
5356 let range = if selection.is_empty() && !line_mode && entire_line {
5357 let column = selection.start.to_point(&snapshot).column as usize;
5358 let line_start = selection.start - column;
5359 line_start..line_start
5360 } else {
5361 selection.range()
5362 };
5363
5364 edits.push((range, to_insert));
5365 original_indent_columns.extend(original_indent_column);
5366 }
5367 drop(snapshot);
5368
5369 buffer.edit(
5370 edits,
5371 Some(AutoindentMode::Block {
5372 original_indent_columns,
5373 }),
5374 cx,
5375 );
5376 });
5377
5378 let selections = this.selections.all::<usize>(cx);
5379 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5380 } else {
5381 this.insert(&clipboard_text, cx);
5382 }
5383 }
5384 });
5385 }
5386
5387 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5388 if self.read_only(cx) {
5389 return;
5390 }
5391
5392 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5393 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5394 self.change_selections(None, cx, |s| {
5395 s.select_anchors(selections.to_vec());
5396 });
5397 }
5398 self.request_autoscroll(Autoscroll::fit(), cx);
5399 self.unmark_text(cx);
5400 self.refresh_copilot_suggestions(true, cx);
5401 cx.emit(EditorEvent::Edited);
5402 }
5403 }
5404
5405 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5406 if self.read_only(cx) {
5407 return;
5408 }
5409
5410 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5411 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5412 {
5413 self.change_selections(None, cx, |s| {
5414 s.select_anchors(selections.to_vec());
5415 });
5416 }
5417 self.request_autoscroll(Autoscroll::fit(), cx);
5418 self.unmark_text(cx);
5419 self.refresh_copilot_suggestions(true, cx);
5420 cx.emit(EditorEvent::Edited);
5421 }
5422 }
5423
5424 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5425 self.buffer
5426 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5427 }
5428
5429 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5430 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5431 let line_mode = s.line_mode;
5432 s.move_with(|map, selection| {
5433 let cursor = if selection.is_empty() && !line_mode {
5434 movement::left(map, selection.start)
5435 } else {
5436 selection.start
5437 };
5438 selection.collapse_to(cursor, SelectionGoal::None);
5439 });
5440 })
5441 }
5442
5443 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5444 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5445 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5446 })
5447 }
5448
5449 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5450 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5451 let line_mode = s.line_mode;
5452 s.move_with(|map, selection| {
5453 let cursor = if selection.is_empty() && !line_mode {
5454 movement::right(map, selection.end)
5455 } else {
5456 selection.end
5457 };
5458 selection.collapse_to(cursor, SelectionGoal::None)
5459 });
5460 })
5461 }
5462
5463 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5464 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5465 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5466 })
5467 }
5468
5469 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5470 if self.take_rename(true, cx).is_some() {
5471 return;
5472 }
5473
5474 if matches!(self.mode, EditorMode::SingleLine) {
5475 cx.propagate();
5476 return;
5477 }
5478
5479 let text_layout_details = &self.text_layout_details(cx);
5480
5481 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5482 let line_mode = s.line_mode;
5483 s.move_with(|map, selection| {
5484 if !selection.is_empty() && !line_mode {
5485 selection.goal = SelectionGoal::None;
5486 }
5487 let (cursor, goal) = movement::up(
5488 map,
5489 selection.start,
5490 selection.goal,
5491 false,
5492 &text_layout_details,
5493 );
5494 selection.collapse_to(cursor, goal);
5495 });
5496 })
5497 }
5498
5499 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5500 if self.take_rename(true, cx).is_some() {
5501 return;
5502 }
5503
5504 if matches!(self.mode, EditorMode::SingleLine) {
5505 cx.propagate();
5506 return;
5507 }
5508
5509 let text_layout_details = &self.text_layout_details(cx);
5510
5511 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5512 let line_mode = s.line_mode;
5513 s.move_with(|map, selection| {
5514 if !selection.is_empty() && !line_mode {
5515 selection.goal = SelectionGoal::None;
5516 }
5517 let (cursor, goal) = movement::up_by_rows(
5518 map,
5519 selection.start,
5520 action.lines,
5521 selection.goal,
5522 false,
5523 &text_layout_details,
5524 );
5525 selection.collapse_to(cursor, goal);
5526 });
5527 })
5528 }
5529
5530 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5531 if self.take_rename(true, cx).is_some() {
5532 return;
5533 }
5534
5535 if matches!(self.mode, EditorMode::SingleLine) {
5536 cx.propagate();
5537 return;
5538 }
5539
5540 let text_layout_details = &self.text_layout_details(cx);
5541
5542 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5543 let line_mode = s.line_mode;
5544 s.move_with(|map, selection| {
5545 if !selection.is_empty() && !line_mode {
5546 selection.goal = SelectionGoal::None;
5547 }
5548 let (cursor, goal) = movement::down_by_rows(
5549 map,
5550 selection.start,
5551 action.lines,
5552 selection.goal,
5553 false,
5554 &text_layout_details,
5555 );
5556 selection.collapse_to(cursor, goal);
5557 });
5558 })
5559 }
5560
5561 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5562 let text_layout_details = &self.text_layout_details(cx);
5563 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5564 s.move_heads_with(|map, head, goal| {
5565 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5566 })
5567 })
5568 }
5569
5570 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5571 let text_layout_details = &self.text_layout_details(cx);
5572 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5573 s.move_heads_with(|map, head, goal| {
5574 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5575 })
5576 })
5577 }
5578
5579 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5580 if self.take_rename(true, cx).is_some() {
5581 return;
5582 }
5583
5584 if matches!(self.mode, EditorMode::SingleLine) {
5585 cx.propagate();
5586 return;
5587 }
5588
5589 let row_count = if let Some(row_count) = self.visible_line_count() {
5590 row_count as u32 - 1
5591 } else {
5592 return;
5593 };
5594
5595 let autoscroll = if action.center_cursor {
5596 Autoscroll::center()
5597 } else {
5598 Autoscroll::fit()
5599 };
5600
5601 let text_layout_details = &self.text_layout_details(cx);
5602
5603 self.change_selections(Some(autoscroll), cx, |s| {
5604 let line_mode = s.line_mode;
5605 s.move_with(|map, selection| {
5606 if !selection.is_empty() && !line_mode {
5607 selection.goal = SelectionGoal::None;
5608 }
5609 let (cursor, goal) = movement::up_by_rows(
5610 map,
5611 selection.end,
5612 row_count,
5613 selection.goal,
5614 false,
5615 &text_layout_details,
5616 );
5617 selection.collapse_to(cursor, goal);
5618 });
5619 });
5620 }
5621
5622 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5623 let text_layout_details = &self.text_layout_details(cx);
5624 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5625 s.move_heads_with(|map, head, goal| {
5626 movement::up(map, head, goal, false, &text_layout_details)
5627 })
5628 })
5629 }
5630
5631 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5632 self.take_rename(true, cx);
5633
5634 if self.mode == EditorMode::SingleLine {
5635 cx.propagate();
5636 return;
5637 }
5638
5639 let text_layout_details = &self.text_layout_details(cx);
5640 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5641 let line_mode = s.line_mode;
5642 s.move_with(|map, selection| {
5643 if !selection.is_empty() && !line_mode {
5644 selection.goal = SelectionGoal::None;
5645 }
5646 let (cursor, goal) = movement::down(
5647 map,
5648 selection.end,
5649 selection.goal,
5650 false,
5651 &text_layout_details,
5652 );
5653 selection.collapse_to(cursor, goal);
5654 });
5655 });
5656 }
5657
5658 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5659 if self.take_rename(true, cx).is_some() {
5660 return;
5661 }
5662
5663 if self
5664 .context_menu
5665 .write()
5666 .as_mut()
5667 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5668 .unwrap_or(false)
5669 {
5670 return;
5671 }
5672
5673 if matches!(self.mode, EditorMode::SingleLine) {
5674 cx.propagate();
5675 return;
5676 }
5677
5678 let row_count = if let Some(row_count) = self.visible_line_count() {
5679 row_count as u32 - 1
5680 } else {
5681 return;
5682 };
5683
5684 let autoscroll = if action.center_cursor {
5685 Autoscroll::center()
5686 } else {
5687 Autoscroll::fit()
5688 };
5689
5690 let text_layout_details = &self.text_layout_details(cx);
5691 self.change_selections(Some(autoscroll), cx, |s| {
5692 let line_mode = s.line_mode;
5693 s.move_with(|map, selection| {
5694 if !selection.is_empty() && !line_mode {
5695 selection.goal = SelectionGoal::None;
5696 }
5697 let (cursor, goal) = movement::down_by_rows(
5698 map,
5699 selection.end,
5700 row_count,
5701 selection.goal,
5702 false,
5703 &text_layout_details,
5704 );
5705 selection.collapse_to(cursor, goal);
5706 });
5707 });
5708 }
5709
5710 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5711 let text_layout_details = &self.text_layout_details(cx);
5712 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5713 s.move_heads_with(|map, head, goal| {
5714 movement::down(map, head, goal, false, &text_layout_details)
5715 })
5716 });
5717 }
5718
5719 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5720 if let Some(context_menu) = self.context_menu.write().as_mut() {
5721 context_menu.select_first(self.project.as_ref(), cx);
5722 }
5723 }
5724
5725 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5726 if let Some(context_menu) = self.context_menu.write().as_mut() {
5727 context_menu.select_prev(self.project.as_ref(), cx);
5728 }
5729 }
5730
5731 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5732 if let Some(context_menu) = self.context_menu.write().as_mut() {
5733 context_menu.select_next(self.project.as_ref(), cx);
5734 }
5735 }
5736
5737 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5738 if let Some(context_menu) = self.context_menu.write().as_mut() {
5739 context_menu.select_last(self.project.as_ref(), cx);
5740 }
5741 }
5742
5743 pub fn move_to_previous_word_start(
5744 &mut self,
5745 _: &MoveToPreviousWordStart,
5746 cx: &mut ViewContext<Self>,
5747 ) {
5748 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5749 s.move_cursors_with(|map, head, _| {
5750 (
5751 movement::previous_word_start(map, head),
5752 SelectionGoal::None,
5753 )
5754 });
5755 })
5756 }
5757
5758 pub fn move_to_previous_subword_start(
5759 &mut self,
5760 _: &MoveToPreviousSubwordStart,
5761 cx: &mut ViewContext<Self>,
5762 ) {
5763 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5764 s.move_cursors_with(|map, head, _| {
5765 (
5766 movement::previous_subword_start(map, head),
5767 SelectionGoal::None,
5768 )
5769 });
5770 })
5771 }
5772
5773 pub fn select_to_previous_word_start(
5774 &mut self,
5775 _: &SelectToPreviousWordStart,
5776 cx: &mut ViewContext<Self>,
5777 ) {
5778 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5779 s.move_heads_with(|map, head, _| {
5780 (
5781 movement::previous_word_start(map, head),
5782 SelectionGoal::None,
5783 )
5784 });
5785 })
5786 }
5787
5788 pub fn select_to_previous_subword_start(
5789 &mut self,
5790 _: &SelectToPreviousSubwordStart,
5791 cx: &mut ViewContext<Self>,
5792 ) {
5793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5794 s.move_heads_with(|map, head, _| {
5795 (
5796 movement::previous_subword_start(map, head),
5797 SelectionGoal::None,
5798 )
5799 });
5800 })
5801 }
5802
5803 pub fn delete_to_previous_word_start(
5804 &mut self,
5805 _: &DeleteToPreviousWordStart,
5806 cx: &mut ViewContext<Self>,
5807 ) {
5808 self.transact(cx, |this, cx| {
5809 this.select_autoclose_pair(cx);
5810 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5811 let line_mode = s.line_mode;
5812 s.move_with(|map, selection| {
5813 if selection.is_empty() && !line_mode {
5814 let cursor = movement::previous_word_start(map, selection.head());
5815 selection.set_head(cursor, SelectionGoal::None);
5816 }
5817 });
5818 });
5819 this.insert("", cx);
5820 });
5821 }
5822
5823 pub fn delete_to_previous_subword_start(
5824 &mut self,
5825 _: &DeleteToPreviousSubwordStart,
5826 cx: &mut ViewContext<Self>,
5827 ) {
5828 self.transact(cx, |this, cx| {
5829 this.select_autoclose_pair(cx);
5830 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5831 let line_mode = s.line_mode;
5832 s.move_with(|map, selection| {
5833 if selection.is_empty() && !line_mode {
5834 let cursor = movement::previous_subword_start(map, selection.head());
5835 selection.set_head(cursor, SelectionGoal::None);
5836 }
5837 });
5838 });
5839 this.insert("", cx);
5840 });
5841 }
5842
5843 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5844 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5845 s.move_cursors_with(|map, head, _| {
5846 (movement::next_word_end(map, head), SelectionGoal::None)
5847 });
5848 })
5849 }
5850
5851 pub fn move_to_next_subword_end(
5852 &mut self,
5853 _: &MoveToNextSubwordEnd,
5854 cx: &mut ViewContext<Self>,
5855 ) {
5856 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5857 s.move_cursors_with(|map, head, _| {
5858 (movement::next_subword_end(map, head), SelectionGoal::None)
5859 });
5860 })
5861 }
5862
5863 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5864 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5865 s.move_heads_with(|map, head, _| {
5866 (movement::next_word_end(map, head), SelectionGoal::None)
5867 });
5868 })
5869 }
5870
5871 pub fn select_to_next_subword_end(
5872 &mut self,
5873 _: &SelectToNextSubwordEnd,
5874 cx: &mut ViewContext<Self>,
5875 ) {
5876 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5877 s.move_heads_with(|map, head, _| {
5878 (movement::next_subword_end(map, head), SelectionGoal::None)
5879 });
5880 })
5881 }
5882
5883 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5884 self.transact(cx, |this, cx| {
5885 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5886 let line_mode = s.line_mode;
5887 s.move_with(|map, selection| {
5888 if selection.is_empty() && !line_mode {
5889 let cursor = movement::next_word_end(map, selection.head());
5890 selection.set_head(cursor, SelectionGoal::None);
5891 }
5892 });
5893 });
5894 this.insert("", cx);
5895 });
5896 }
5897
5898 pub fn delete_to_next_subword_end(
5899 &mut self,
5900 _: &DeleteToNextSubwordEnd,
5901 cx: &mut ViewContext<Self>,
5902 ) {
5903 self.transact(cx, |this, cx| {
5904 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5905 s.move_with(|map, selection| {
5906 if selection.is_empty() {
5907 let cursor = movement::next_subword_end(map, selection.head());
5908 selection.set_head(cursor, SelectionGoal::None);
5909 }
5910 });
5911 });
5912 this.insert("", cx);
5913 });
5914 }
5915
5916 pub fn move_to_beginning_of_line(
5917 &mut self,
5918 _: &MoveToBeginningOfLine,
5919 cx: &mut ViewContext<Self>,
5920 ) {
5921 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5922 s.move_cursors_with(|map, head, _| {
5923 (
5924 movement::indented_line_beginning(map, head, true),
5925 SelectionGoal::None,
5926 )
5927 });
5928 })
5929 }
5930
5931 pub fn select_to_beginning_of_line(
5932 &mut self,
5933 action: &SelectToBeginningOfLine,
5934 cx: &mut ViewContext<Self>,
5935 ) {
5936 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5937 s.move_heads_with(|map, head, _| {
5938 (
5939 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5940 SelectionGoal::None,
5941 )
5942 });
5943 });
5944 }
5945
5946 pub fn delete_to_beginning_of_line(
5947 &mut self,
5948 _: &DeleteToBeginningOfLine,
5949 cx: &mut ViewContext<Self>,
5950 ) {
5951 self.transact(cx, |this, cx| {
5952 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5953 s.move_with(|_, selection| {
5954 selection.reversed = true;
5955 });
5956 });
5957
5958 this.select_to_beginning_of_line(
5959 &SelectToBeginningOfLine {
5960 stop_at_soft_wraps: false,
5961 },
5962 cx,
5963 );
5964 this.backspace(&Backspace, cx);
5965 });
5966 }
5967
5968 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
5969 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5970 s.move_cursors_with(|map, head, _| {
5971 (movement::line_end(map, head, true), SelectionGoal::None)
5972 });
5973 })
5974 }
5975
5976 pub fn select_to_end_of_line(
5977 &mut self,
5978 action: &SelectToEndOfLine,
5979 cx: &mut ViewContext<Self>,
5980 ) {
5981 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5982 s.move_heads_with(|map, head, _| {
5983 (
5984 movement::line_end(map, head, action.stop_at_soft_wraps),
5985 SelectionGoal::None,
5986 )
5987 });
5988 })
5989 }
5990
5991 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
5992 self.transact(cx, |this, cx| {
5993 this.select_to_end_of_line(
5994 &SelectToEndOfLine {
5995 stop_at_soft_wraps: false,
5996 },
5997 cx,
5998 );
5999 this.delete(&Delete, cx);
6000 });
6001 }
6002
6003 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6004 self.transact(cx, |this, cx| {
6005 this.select_to_end_of_line(
6006 &SelectToEndOfLine {
6007 stop_at_soft_wraps: false,
6008 },
6009 cx,
6010 );
6011 this.cut(&Cut, cx);
6012 });
6013 }
6014
6015 pub fn move_to_start_of_paragraph(
6016 &mut self,
6017 _: &MoveToStartOfParagraph,
6018 cx: &mut ViewContext<Self>,
6019 ) {
6020 if matches!(self.mode, EditorMode::SingleLine) {
6021 cx.propagate();
6022 return;
6023 }
6024
6025 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6026 s.move_with(|map, selection| {
6027 selection.collapse_to(
6028 movement::start_of_paragraph(map, selection.head(), 1),
6029 SelectionGoal::None,
6030 )
6031 });
6032 })
6033 }
6034
6035 pub fn move_to_end_of_paragraph(
6036 &mut self,
6037 _: &MoveToEndOfParagraph,
6038 cx: &mut ViewContext<Self>,
6039 ) {
6040 if matches!(self.mode, EditorMode::SingleLine) {
6041 cx.propagate();
6042 return;
6043 }
6044
6045 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6046 s.move_with(|map, selection| {
6047 selection.collapse_to(
6048 movement::end_of_paragraph(map, selection.head(), 1),
6049 SelectionGoal::None,
6050 )
6051 });
6052 })
6053 }
6054
6055 pub fn select_to_start_of_paragraph(
6056 &mut self,
6057 _: &SelectToStartOfParagraph,
6058 cx: &mut ViewContext<Self>,
6059 ) {
6060 if matches!(self.mode, EditorMode::SingleLine) {
6061 cx.propagate();
6062 return;
6063 }
6064
6065 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6066 s.move_heads_with(|map, head, _| {
6067 (
6068 movement::start_of_paragraph(map, head, 1),
6069 SelectionGoal::None,
6070 )
6071 });
6072 })
6073 }
6074
6075 pub fn select_to_end_of_paragraph(
6076 &mut self,
6077 _: &SelectToEndOfParagraph,
6078 cx: &mut ViewContext<Self>,
6079 ) {
6080 if matches!(self.mode, EditorMode::SingleLine) {
6081 cx.propagate();
6082 return;
6083 }
6084
6085 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6086 s.move_heads_with(|map, head, _| {
6087 (
6088 movement::end_of_paragraph(map, head, 1),
6089 SelectionGoal::None,
6090 )
6091 });
6092 })
6093 }
6094
6095 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6096 if matches!(self.mode, EditorMode::SingleLine) {
6097 cx.propagate();
6098 return;
6099 }
6100
6101 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6102 s.select_ranges(vec![0..0]);
6103 });
6104 }
6105
6106 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6107 let mut selection = self.selections.last::<Point>(cx);
6108 selection.set_head(Point::zero(), SelectionGoal::None);
6109
6110 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6111 s.select(vec![selection]);
6112 });
6113 }
6114
6115 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6116 if matches!(self.mode, EditorMode::SingleLine) {
6117 cx.propagate();
6118 return;
6119 }
6120
6121 let cursor = self.buffer.read(cx).read(cx).len();
6122 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6123 s.select_ranges(vec![cursor..cursor])
6124 });
6125 }
6126
6127 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6128 self.nav_history = nav_history;
6129 }
6130
6131 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6132 self.nav_history.as_ref()
6133 }
6134
6135 fn push_to_nav_history(
6136 &mut self,
6137 cursor_anchor: Anchor,
6138 new_position: Option<Point>,
6139 cx: &mut ViewContext<Self>,
6140 ) {
6141 if let Some(nav_history) = self.nav_history.as_mut() {
6142 let buffer = self.buffer.read(cx).read(cx);
6143 let cursor_position = cursor_anchor.to_point(&buffer);
6144 let scroll_state = self.scroll_manager.anchor();
6145 let scroll_top_row = scroll_state.top_row(&buffer);
6146 drop(buffer);
6147
6148 if let Some(new_position) = new_position {
6149 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6150 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6151 return;
6152 }
6153 }
6154
6155 nav_history.push(
6156 Some(NavigationData {
6157 cursor_anchor,
6158 cursor_position,
6159 scroll_anchor: scroll_state,
6160 scroll_top_row,
6161 }),
6162 cx,
6163 );
6164 }
6165 }
6166
6167 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6168 let buffer = self.buffer.read(cx).snapshot(cx);
6169 let mut selection = self.selections.first::<usize>(cx);
6170 selection.set_head(buffer.len(), SelectionGoal::None);
6171 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6172 s.select(vec![selection]);
6173 });
6174 }
6175
6176 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6177 let end = self.buffer.read(cx).read(cx).len();
6178 self.change_selections(None, cx, |s| {
6179 s.select_ranges(vec![0..end]);
6180 });
6181 }
6182
6183 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6184 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6185 let mut selections = self.selections.all::<Point>(cx);
6186 let max_point = display_map.buffer_snapshot.max_point();
6187 for selection in &mut selections {
6188 let rows = selection.spanned_rows(true, &display_map);
6189 selection.start = Point::new(rows.start, 0);
6190 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6191 selection.reversed = false;
6192 }
6193 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6194 s.select(selections);
6195 });
6196 }
6197
6198 pub fn split_selection_into_lines(
6199 &mut self,
6200 _: &SplitSelectionIntoLines,
6201 cx: &mut ViewContext<Self>,
6202 ) {
6203 let mut to_unfold = Vec::new();
6204 let mut new_selection_ranges = Vec::new();
6205 {
6206 let selections = self.selections.all::<Point>(cx);
6207 let buffer = self.buffer.read(cx).read(cx);
6208 for selection in selections {
6209 for row in selection.start.row..selection.end.row {
6210 let cursor = Point::new(row, buffer.line_len(row));
6211 new_selection_ranges.push(cursor..cursor);
6212 }
6213 new_selection_ranges.push(selection.end..selection.end);
6214 to_unfold.push(selection.start..selection.end);
6215 }
6216 }
6217 self.unfold_ranges(to_unfold, true, true, cx);
6218 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6219 s.select_ranges(new_selection_ranges);
6220 });
6221 }
6222
6223 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6224 self.add_selection(true, cx);
6225 }
6226
6227 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6228 self.add_selection(false, cx);
6229 }
6230
6231 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6232 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6233 let mut selections = self.selections.all::<Point>(cx);
6234 let text_layout_details = self.text_layout_details(cx);
6235 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6236 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6237 let range = oldest_selection.display_range(&display_map).sorted();
6238
6239 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6240 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6241 let positions = start_x.min(end_x)..start_x.max(end_x);
6242
6243 selections.clear();
6244 let mut stack = Vec::new();
6245 for row in range.start.row()..=range.end.row() {
6246 if let Some(selection) = self.selections.build_columnar_selection(
6247 &display_map,
6248 row,
6249 &positions,
6250 oldest_selection.reversed,
6251 &text_layout_details,
6252 ) {
6253 stack.push(selection.id);
6254 selections.push(selection);
6255 }
6256 }
6257
6258 if above {
6259 stack.reverse();
6260 }
6261
6262 AddSelectionsState { above, stack }
6263 });
6264
6265 let last_added_selection = *state.stack.last().unwrap();
6266 let mut new_selections = Vec::new();
6267 if above == state.above {
6268 let end_row = if above {
6269 0
6270 } else {
6271 display_map.max_point().row()
6272 };
6273
6274 'outer: for selection in selections {
6275 if selection.id == last_added_selection {
6276 let range = selection.display_range(&display_map).sorted();
6277 debug_assert_eq!(range.start.row(), range.end.row());
6278 let mut row = range.start.row();
6279 let positions =
6280 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6281 px(start)..px(end)
6282 } else {
6283 let start_x =
6284 display_map.x_for_display_point(range.start, &text_layout_details);
6285 let end_x =
6286 display_map.x_for_display_point(range.end, &text_layout_details);
6287 start_x.min(end_x)..start_x.max(end_x)
6288 };
6289
6290 while row != end_row {
6291 if above {
6292 row -= 1;
6293 } else {
6294 row += 1;
6295 }
6296
6297 if let Some(new_selection) = self.selections.build_columnar_selection(
6298 &display_map,
6299 row,
6300 &positions,
6301 selection.reversed,
6302 &text_layout_details,
6303 ) {
6304 state.stack.push(new_selection.id);
6305 if above {
6306 new_selections.push(new_selection);
6307 new_selections.push(selection);
6308 } else {
6309 new_selections.push(selection);
6310 new_selections.push(new_selection);
6311 }
6312
6313 continue 'outer;
6314 }
6315 }
6316 }
6317
6318 new_selections.push(selection);
6319 }
6320 } else {
6321 new_selections = selections;
6322 new_selections.retain(|s| s.id != last_added_selection);
6323 state.stack.pop();
6324 }
6325
6326 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6327 s.select(new_selections);
6328 });
6329 if state.stack.len() > 1 {
6330 self.add_selections_state = Some(state);
6331 }
6332 }
6333
6334 pub fn select_next_match_internal(
6335 &mut self,
6336 display_map: &DisplaySnapshot,
6337 replace_newest: bool,
6338 autoscroll: Option<Autoscroll>,
6339 cx: &mut ViewContext<Self>,
6340 ) -> Result<()> {
6341 fn select_next_match_ranges(
6342 this: &mut Editor,
6343 range: Range<usize>,
6344 replace_newest: bool,
6345 auto_scroll: Option<Autoscroll>,
6346 cx: &mut ViewContext<Editor>,
6347 ) {
6348 this.unfold_ranges([range.clone()], false, true, cx);
6349 this.change_selections(auto_scroll, cx, |s| {
6350 if replace_newest {
6351 s.delete(s.newest_anchor().id);
6352 }
6353 s.insert_range(range.clone());
6354 });
6355 }
6356
6357 let buffer = &display_map.buffer_snapshot;
6358 let mut selections = self.selections.all::<usize>(cx);
6359 if let Some(mut select_next_state) = self.select_next_state.take() {
6360 let query = &select_next_state.query;
6361 if !select_next_state.done {
6362 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6363 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6364 let mut next_selected_range = None;
6365
6366 let bytes_after_last_selection =
6367 buffer.bytes_in_range(last_selection.end..buffer.len());
6368 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6369 let query_matches = query
6370 .stream_find_iter(bytes_after_last_selection)
6371 .map(|result| (last_selection.end, result))
6372 .chain(
6373 query
6374 .stream_find_iter(bytes_before_first_selection)
6375 .map(|result| (0, result)),
6376 );
6377
6378 for (start_offset, query_match) in query_matches {
6379 let query_match = query_match.unwrap(); // can only fail due to I/O
6380 let offset_range =
6381 start_offset + query_match.start()..start_offset + query_match.end();
6382 let display_range = offset_range.start.to_display_point(&display_map)
6383 ..offset_range.end.to_display_point(&display_map);
6384
6385 if !select_next_state.wordwise
6386 || (!movement::is_inside_word(&display_map, display_range.start)
6387 && !movement::is_inside_word(&display_map, display_range.end))
6388 {
6389 // TODO: This is n^2, because we might check all the selections
6390 if selections
6391 .iter()
6392 .find(|selection| selection.range().overlaps(&offset_range))
6393 .is_none()
6394 {
6395 next_selected_range = Some(offset_range);
6396 break;
6397 }
6398 }
6399 }
6400
6401 if let Some(next_selected_range) = next_selected_range {
6402 select_next_match_ranges(
6403 self,
6404 next_selected_range,
6405 replace_newest,
6406 autoscroll,
6407 cx,
6408 );
6409 } else {
6410 select_next_state.done = true;
6411 }
6412 }
6413
6414 self.select_next_state = Some(select_next_state);
6415 } else {
6416 let mut only_carets = true;
6417 let mut same_text_selected = true;
6418 let mut selected_text = None;
6419
6420 let mut selections_iter = selections.iter().peekable();
6421 while let Some(selection) = selections_iter.next() {
6422 if selection.start != selection.end {
6423 only_carets = false;
6424 }
6425
6426 if same_text_selected {
6427 if selected_text.is_none() {
6428 selected_text =
6429 Some(buffer.text_for_range(selection.range()).collect::<String>());
6430 }
6431
6432 if let Some(next_selection) = selections_iter.peek() {
6433 if next_selection.range().len() == selection.range().len() {
6434 let next_selected_text = buffer
6435 .text_for_range(next_selection.range())
6436 .collect::<String>();
6437 if Some(next_selected_text) != selected_text {
6438 same_text_selected = false;
6439 selected_text = None;
6440 }
6441 } else {
6442 same_text_selected = false;
6443 selected_text = None;
6444 }
6445 }
6446 }
6447 }
6448
6449 if only_carets {
6450 for selection in &mut selections {
6451 let word_range = movement::surrounding_word(
6452 &display_map,
6453 selection.start.to_display_point(&display_map),
6454 );
6455 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6456 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6457 selection.goal = SelectionGoal::None;
6458 selection.reversed = false;
6459 select_next_match_ranges(
6460 self,
6461 selection.start..selection.end,
6462 replace_newest,
6463 autoscroll,
6464 cx,
6465 );
6466 }
6467
6468 if selections.len() == 1 {
6469 let selection = selections
6470 .last()
6471 .expect("ensured that there's only one selection");
6472 let query = buffer
6473 .text_for_range(selection.start..selection.end)
6474 .collect::<String>();
6475 let is_empty = query.is_empty();
6476 let select_state = SelectNextState {
6477 query: AhoCorasick::new(&[query])?,
6478 wordwise: true,
6479 done: is_empty,
6480 };
6481 self.select_next_state = Some(select_state);
6482 } else {
6483 self.select_next_state = None;
6484 }
6485 } else if let Some(selected_text) = selected_text {
6486 self.select_next_state = Some(SelectNextState {
6487 query: AhoCorasick::new(&[selected_text])?,
6488 wordwise: false,
6489 done: false,
6490 });
6491 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6492 }
6493 }
6494 Ok(())
6495 }
6496
6497 pub fn select_all_matches(
6498 &mut self,
6499 _action: &SelectAllMatches,
6500 cx: &mut ViewContext<Self>,
6501 ) -> Result<()> {
6502 self.push_to_selection_history();
6503 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6504
6505 self.select_next_match_internal(&display_map, false, None, cx)?;
6506 let Some(select_next_state) = self.select_next_state.as_mut() else {
6507 return Ok(());
6508 };
6509 if select_next_state.done {
6510 return Ok(());
6511 }
6512
6513 let mut new_selections = self.selections.all::<usize>(cx);
6514
6515 let buffer = &display_map.buffer_snapshot;
6516 let query_matches = select_next_state
6517 .query
6518 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6519
6520 for query_match in query_matches {
6521 let query_match = query_match.unwrap(); // can only fail due to I/O
6522 let offset_range = query_match.start()..query_match.end();
6523 let display_range = offset_range.start.to_display_point(&display_map)
6524 ..offset_range.end.to_display_point(&display_map);
6525
6526 if !select_next_state.wordwise
6527 || (!movement::is_inside_word(&display_map, display_range.start)
6528 && !movement::is_inside_word(&display_map, display_range.end))
6529 {
6530 self.selections.change_with(cx, |selections| {
6531 new_selections.push(Selection {
6532 id: selections.new_selection_id(),
6533 start: offset_range.start,
6534 end: offset_range.end,
6535 reversed: false,
6536 goal: SelectionGoal::None,
6537 });
6538 });
6539 }
6540 }
6541
6542 new_selections.sort_by_key(|selection| selection.start);
6543 let mut ix = 0;
6544 while ix + 1 < new_selections.len() {
6545 let current_selection = &new_selections[ix];
6546 let next_selection = &new_selections[ix + 1];
6547 if current_selection.range().overlaps(&next_selection.range()) {
6548 if current_selection.id < next_selection.id {
6549 new_selections.remove(ix + 1);
6550 } else {
6551 new_selections.remove(ix);
6552 }
6553 } else {
6554 ix += 1;
6555 }
6556 }
6557
6558 select_next_state.done = true;
6559 self.unfold_ranges(
6560 new_selections.iter().map(|selection| selection.range()),
6561 false,
6562 false,
6563 cx,
6564 );
6565 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6566 selections.select(new_selections)
6567 });
6568
6569 Ok(())
6570 }
6571
6572 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6573 self.push_to_selection_history();
6574 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6575 self.select_next_match_internal(
6576 &display_map,
6577 action.replace_newest,
6578 Some(Autoscroll::newest()),
6579 cx,
6580 )?;
6581 Ok(())
6582 }
6583
6584 pub fn select_previous(
6585 &mut self,
6586 action: &SelectPrevious,
6587 cx: &mut ViewContext<Self>,
6588 ) -> Result<()> {
6589 self.push_to_selection_history();
6590 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6591 let buffer = &display_map.buffer_snapshot;
6592 let mut selections = self.selections.all::<usize>(cx);
6593 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6594 let query = &select_prev_state.query;
6595 if !select_prev_state.done {
6596 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6597 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6598 let mut next_selected_range = None;
6599 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6600 let bytes_before_last_selection =
6601 buffer.reversed_bytes_in_range(0..last_selection.start);
6602 let bytes_after_first_selection =
6603 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6604 let query_matches = query
6605 .stream_find_iter(bytes_before_last_selection)
6606 .map(|result| (last_selection.start, result))
6607 .chain(
6608 query
6609 .stream_find_iter(bytes_after_first_selection)
6610 .map(|result| (buffer.len(), result)),
6611 );
6612 for (end_offset, query_match) in query_matches {
6613 let query_match = query_match.unwrap(); // can only fail due to I/O
6614 let offset_range =
6615 end_offset - query_match.end()..end_offset - query_match.start();
6616 let display_range = offset_range.start.to_display_point(&display_map)
6617 ..offset_range.end.to_display_point(&display_map);
6618
6619 if !select_prev_state.wordwise
6620 || (!movement::is_inside_word(&display_map, display_range.start)
6621 && !movement::is_inside_word(&display_map, display_range.end))
6622 {
6623 next_selected_range = Some(offset_range);
6624 break;
6625 }
6626 }
6627
6628 if let Some(next_selected_range) = next_selected_range {
6629 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6630 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6631 if action.replace_newest {
6632 s.delete(s.newest_anchor().id);
6633 }
6634 s.insert_range(next_selected_range);
6635 });
6636 } else {
6637 select_prev_state.done = true;
6638 }
6639 }
6640
6641 self.select_prev_state = Some(select_prev_state);
6642 } else {
6643 let mut only_carets = true;
6644 let mut same_text_selected = true;
6645 let mut selected_text = None;
6646
6647 let mut selections_iter = selections.iter().peekable();
6648 while let Some(selection) = selections_iter.next() {
6649 if selection.start != selection.end {
6650 only_carets = false;
6651 }
6652
6653 if same_text_selected {
6654 if selected_text.is_none() {
6655 selected_text =
6656 Some(buffer.text_for_range(selection.range()).collect::<String>());
6657 }
6658
6659 if let Some(next_selection) = selections_iter.peek() {
6660 if next_selection.range().len() == selection.range().len() {
6661 let next_selected_text = buffer
6662 .text_for_range(next_selection.range())
6663 .collect::<String>();
6664 if Some(next_selected_text) != selected_text {
6665 same_text_selected = false;
6666 selected_text = None;
6667 }
6668 } else {
6669 same_text_selected = false;
6670 selected_text = None;
6671 }
6672 }
6673 }
6674 }
6675
6676 if only_carets {
6677 for selection in &mut selections {
6678 let word_range = movement::surrounding_word(
6679 &display_map,
6680 selection.start.to_display_point(&display_map),
6681 );
6682 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6683 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6684 selection.goal = SelectionGoal::None;
6685 selection.reversed = false;
6686 }
6687 if selections.len() == 1 {
6688 let selection = selections
6689 .last()
6690 .expect("ensured that there's only one selection");
6691 let query = buffer
6692 .text_for_range(selection.start..selection.end)
6693 .collect::<String>();
6694 let is_empty = query.is_empty();
6695 let select_state = SelectNextState {
6696 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6697 wordwise: true,
6698 done: is_empty,
6699 };
6700 self.select_prev_state = Some(select_state);
6701 } else {
6702 self.select_prev_state = None;
6703 }
6704
6705 self.unfold_ranges(
6706 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6707 false,
6708 true,
6709 cx,
6710 );
6711 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6712 s.select(selections);
6713 });
6714 } else if let Some(selected_text) = selected_text {
6715 self.select_prev_state = Some(SelectNextState {
6716 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6717 wordwise: false,
6718 done: false,
6719 });
6720 self.select_previous(action, cx)?;
6721 }
6722 }
6723 Ok(())
6724 }
6725
6726 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6727 let text_layout_details = &self.text_layout_details(cx);
6728 self.transact(cx, |this, cx| {
6729 let mut selections = this.selections.all::<Point>(cx);
6730 let mut edits = Vec::new();
6731 let mut selection_edit_ranges = Vec::new();
6732 let mut last_toggled_row = None;
6733 let snapshot = this.buffer.read(cx).read(cx);
6734 let empty_str: Arc<str> = "".into();
6735 let mut suffixes_inserted = Vec::new();
6736
6737 fn comment_prefix_range(
6738 snapshot: &MultiBufferSnapshot,
6739 row: u32,
6740 comment_prefix: &str,
6741 comment_prefix_whitespace: &str,
6742 ) -> Range<Point> {
6743 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6744
6745 let mut line_bytes = snapshot
6746 .bytes_in_range(start..snapshot.max_point())
6747 .flatten()
6748 .copied();
6749
6750 // If this line currently begins with the line comment prefix, then record
6751 // the range containing the prefix.
6752 if line_bytes
6753 .by_ref()
6754 .take(comment_prefix.len())
6755 .eq(comment_prefix.bytes())
6756 {
6757 // Include any whitespace that matches the comment prefix.
6758 let matching_whitespace_len = line_bytes
6759 .zip(comment_prefix_whitespace.bytes())
6760 .take_while(|(a, b)| a == b)
6761 .count() as u32;
6762 let end = Point::new(
6763 start.row,
6764 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6765 );
6766 start..end
6767 } else {
6768 start..start
6769 }
6770 }
6771
6772 fn comment_suffix_range(
6773 snapshot: &MultiBufferSnapshot,
6774 row: u32,
6775 comment_suffix: &str,
6776 comment_suffix_has_leading_space: bool,
6777 ) -> Range<Point> {
6778 let end = Point::new(row, snapshot.line_len(row));
6779 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6780
6781 let mut line_end_bytes = snapshot
6782 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6783 .flatten()
6784 .copied();
6785
6786 let leading_space_len = if suffix_start_column > 0
6787 && line_end_bytes.next() == Some(b' ')
6788 && comment_suffix_has_leading_space
6789 {
6790 1
6791 } else {
6792 0
6793 };
6794
6795 // If this line currently begins with the line comment prefix, then record
6796 // the range containing the prefix.
6797 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6798 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6799 start..end
6800 } else {
6801 end..end
6802 }
6803 }
6804
6805 // TODO: Handle selections that cross excerpts
6806 for selection in &mut selections {
6807 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6808 let language = if let Some(language) =
6809 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6810 {
6811 language
6812 } else {
6813 continue;
6814 };
6815
6816 selection_edit_ranges.clear();
6817
6818 // If multiple selections contain a given row, avoid processing that
6819 // row more than once.
6820 let mut start_row = selection.start.row;
6821 if last_toggled_row == Some(start_row) {
6822 start_row += 1;
6823 }
6824 let end_row =
6825 if selection.end.row > selection.start.row && selection.end.column == 0 {
6826 selection.end.row - 1
6827 } else {
6828 selection.end.row
6829 };
6830 last_toggled_row = Some(end_row);
6831
6832 if start_row > end_row {
6833 continue;
6834 }
6835
6836 // If the language has line comments, toggle those.
6837 if let Some(full_comment_prefix) = language
6838 .line_comment_prefixes()
6839 .and_then(|prefixes| prefixes.first())
6840 {
6841 // Split the comment prefix's trailing whitespace into a separate string,
6842 // as that portion won't be used for detecting if a line is a comment.
6843 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6844 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6845 let mut all_selection_lines_are_comments = true;
6846
6847 for row in start_row..=end_row {
6848 if start_row < end_row && snapshot.is_line_blank(row) {
6849 continue;
6850 }
6851
6852 let prefix_range = comment_prefix_range(
6853 snapshot.deref(),
6854 row,
6855 comment_prefix,
6856 comment_prefix_whitespace,
6857 );
6858 if prefix_range.is_empty() {
6859 all_selection_lines_are_comments = false;
6860 }
6861 selection_edit_ranges.push(prefix_range);
6862 }
6863
6864 if all_selection_lines_are_comments {
6865 edits.extend(
6866 selection_edit_ranges
6867 .iter()
6868 .cloned()
6869 .map(|range| (range, empty_str.clone())),
6870 );
6871 } else {
6872 let min_column = selection_edit_ranges
6873 .iter()
6874 .map(|r| r.start.column)
6875 .min()
6876 .unwrap_or(0);
6877 edits.extend(selection_edit_ranges.iter().map(|range| {
6878 let position = Point::new(range.start.row, min_column);
6879 (position..position, full_comment_prefix.clone())
6880 }));
6881 }
6882 } else if let Some((full_comment_prefix, comment_suffix)) =
6883 language.block_comment_delimiters()
6884 {
6885 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6886 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6887 let prefix_range = comment_prefix_range(
6888 snapshot.deref(),
6889 start_row,
6890 comment_prefix,
6891 comment_prefix_whitespace,
6892 );
6893 let suffix_range = comment_suffix_range(
6894 snapshot.deref(),
6895 end_row,
6896 comment_suffix.trim_start_matches(' '),
6897 comment_suffix.starts_with(' '),
6898 );
6899
6900 if prefix_range.is_empty() || suffix_range.is_empty() {
6901 edits.push((
6902 prefix_range.start..prefix_range.start,
6903 full_comment_prefix.clone(),
6904 ));
6905 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6906 suffixes_inserted.push((end_row, comment_suffix.len()));
6907 } else {
6908 edits.push((prefix_range, empty_str.clone()));
6909 edits.push((suffix_range, empty_str.clone()));
6910 }
6911 } else {
6912 continue;
6913 }
6914 }
6915
6916 drop(snapshot);
6917 this.buffer.update(cx, |buffer, cx| {
6918 buffer.edit(edits, None, cx);
6919 });
6920
6921 // Adjust selections so that they end before any comment suffixes that
6922 // were inserted.
6923 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6924 let mut selections = this.selections.all::<Point>(cx);
6925 let snapshot = this.buffer.read(cx).read(cx);
6926 for selection in &mut selections {
6927 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6928 match row.cmp(&selection.end.row) {
6929 Ordering::Less => {
6930 suffixes_inserted.next();
6931 continue;
6932 }
6933 Ordering::Greater => break,
6934 Ordering::Equal => {
6935 if selection.end.column == snapshot.line_len(row) {
6936 if selection.is_empty() {
6937 selection.start.column -= suffix_len as u32;
6938 }
6939 selection.end.column -= suffix_len as u32;
6940 }
6941 break;
6942 }
6943 }
6944 }
6945 }
6946
6947 drop(snapshot);
6948 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6949
6950 let selections = this.selections.all::<Point>(cx);
6951 let selections_on_single_row = selections.windows(2).all(|selections| {
6952 selections[0].start.row == selections[1].start.row
6953 && selections[0].end.row == selections[1].end.row
6954 && selections[0].start.row == selections[0].end.row
6955 });
6956 let selections_selecting = selections
6957 .iter()
6958 .any(|selection| selection.start != selection.end);
6959 let advance_downwards = action.advance_downwards
6960 && selections_on_single_row
6961 && !selections_selecting
6962 && this.mode != EditorMode::SingleLine;
6963
6964 if advance_downwards {
6965 let snapshot = this.buffer.read(cx).snapshot(cx);
6966
6967 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6968 s.move_cursors_with(|display_snapshot, display_point, _| {
6969 let mut point = display_point.to_point(display_snapshot);
6970 point.row += 1;
6971 point = snapshot.clip_point(point, Bias::Left);
6972 let display_point = point.to_display_point(display_snapshot);
6973 let goal = SelectionGoal::HorizontalPosition(
6974 display_snapshot
6975 .x_for_display_point(display_point, &text_layout_details)
6976 .into(),
6977 );
6978 (display_point, goal)
6979 })
6980 });
6981 }
6982 });
6983 }
6984
6985 pub fn select_larger_syntax_node(
6986 &mut self,
6987 _: &SelectLargerSyntaxNode,
6988 cx: &mut ViewContext<Self>,
6989 ) {
6990 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6991 let buffer = self.buffer.read(cx).snapshot(cx);
6992 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
6993
6994 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6995 let mut selected_larger_node = false;
6996 let new_selections = old_selections
6997 .iter()
6998 .map(|selection| {
6999 let old_range = selection.start..selection.end;
7000 let mut new_range = old_range.clone();
7001 while let Some(containing_range) =
7002 buffer.range_for_syntax_ancestor(new_range.clone())
7003 {
7004 new_range = containing_range;
7005 if !display_map.intersects_fold(new_range.start)
7006 && !display_map.intersects_fold(new_range.end)
7007 {
7008 break;
7009 }
7010 }
7011
7012 selected_larger_node |= new_range != old_range;
7013 Selection {
7014 id: selection.id,
7015 start: new_range.start,
7016 end: new_range.end,
7017 goal: SelectionGoal::None,
7018 reversed: selection.reversed,
7019 }
7020 })
7021 .collect::<Vec<_>>();
7022
7023 if selected_larger_node {
7024 stack.push(old_selections);
7025 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7026 s.select(new_selections);
7027 });
7028 }
7029 self.select_larger_syntax_node_stack = stack;
7030 }
7031
7032 pub fn select_smaller_syntax_node(
7033 &mut self,
7034 _: &SelectSmallerSyntaxNode,
7035 cx: &mut ViewContext<Self>,
7036 ) {
7037 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7038 if let Some(selections) = stack.pop() {
7039 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7040 s.select(selections.to_vec());
7041 });
7042 }
7043 self.select_larger_syntax_node_stack = stack;
7044 }
7045
7046 pub fn move_to_enclosing_bracket(
7047 &mut self,
7048 _: &MoveToEnclosingBracket,
7049 cx: &mut ViewContext<Self>,
7050 ) {
7051 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7052 s.move_offsets_with(|snapshot, selection| {
7053 let Some(enclosing_bracket_ranges) =
7054 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7055 else {
7056 return;
7057 };
7058
7059 let mut best_length = usize::MAX;
7060 let mut best_inside = false;
7061 let mut best_in_bracket_range = false;
7062 let mut best_destination = None;
7063 for (open, close) in enclosing_bracket_ranges {
7064 let close = close.to_inclusive();
7065 let length = close.end() - open.start;
7066 let inside = selection.start >= open.end && selection.end <= *close.start();
7067 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7068 || close.contains(&selection.head());
7069
7070 // If best is next to a bracket and current isn't, skip
7071 if !in_bracket_range && best_in_bracket_range {
7072 continue;
7073 }
7074
7075 // Prefer smaller lengths unless best is inside and current isn't
7076 if length > best_length && (best_inside || !inside) {
7077 continue;
7078 }
7079
7080 best_length = length;
7081 best_inside = inside;
7082 best_in_bracket_range = in_bracket_range;
7083 best_destination = Some(
7084 if close.contains(&selection.start) && close.contains(&selection.end) {
7085 if inside {
7086 open.end
7087 } else {
7088 open.start
7089 }
7090 } else {
7091 if inside {
7092 *close.start()
7093 } else {
7094 *close.end()
7095 }
7096 },
7097 );
7098 }
7099
7100 if let Some(destination) = best_destination {
7101 selection.collapse_to(destination, SelectionGoal::None);
7102 }
7103 })
7104 });
7105 }
7106
7107 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7108 self.end_selection(cx);
7109 self.selection_history.mode = SelectionHistoryMode::Undoing;
7110 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7111 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7112 self.select_next_state = entry.select_next_state;
7113 self.select_prev_state = entry.select_prev_state;
7114 self.add_selections_state = entry.add_selections_state;
7115 self.request_autoscroll(Autoscroll::newest(), cx);
7116 }
7117 self.selection_history.mode = SelectionHistoryMode::Normal;
7118 }
7119
7120 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7121 self.end_selection(cx);
7122 self.selection_history.mode = SelectionHistoryMode::Redoing;
7123 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7124 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7125 self.select_next_state = entry.select_next_state;
7126 self.select_prev_state = entry.select_prev_state;
7127 self.add_selections_state = entry.add_selections_state;
7128 self.request_autoscroll(Autoscroll::newest(), cx);
7129 }
7130 self.selection_history.mode = SelectionHistoryMode::Normal;
7131 }
7132
7133 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7134 self.go_to_diagnostic_impl(Direction::Next, cx)
7135 }
7136
7137 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7138 self.go_to_diagnostic_impl(Direction::Prev, cx)
7139 }
7140
7141 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7142 let buffer = self.buffer.read(cx).snapshot(cx);
7143 let selection = self.selections.newest::<usize>(cx);
7144
7145 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7146 if direction == Direction::Next {
7147 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7148 let (group_id, jump_to) = popover.activation_info();
7149 if self.activate_diagnostics(group_id, cx) {
7150 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7151 let mut new_selection = s.newest_anchor().clone();
7152 new_selection.collapse_to(jump_to, SelectionGoal::None);
7153 s.select_anchors(vec![new_selection.clone()]);
7154 });
7155 }
7156 return;
7157 }
7158 }
7159
7160 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7161 active_diagnostics
7162 .primary_range
7163 .to_offset(&buffer)
7164 .to_inclusive()
7165 });
7166 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7167 if active_primary_range.contains(&selection.head()) {
7168 *active_primary_range.end()
7169 } else {
7170 selection.head()
7171 }
7172 } else {
7173 selection.head()
7174 };
7175
7176 loop {
7177 let mut diagnostics = if direction == Direction::Prev {
7178 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7179 } else {
7180 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7181 };
7182 let group = diagnostics.find_map(|entry| {
7183 if entry.diagnostic.is_primary
7184 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7185 && !entry.range.is_empty()
7186 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7187 && !entry.range.contains(&search_start)
7188 {
7189 Some((entry.range, entry.diagnostic.group_id))
7190 } else {
7191 None
7192 }
7193 });
7194
7195 if let Some((primary_range, group_id)) = group {
7196 if self.activate_diagnostics(group_id, cx) {
7197 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7198 s.select(vec![Selection {
7199 id: selection.id,
7200 start: primary_range.start,
7201 end: primary_range.start,
7202 reversed: false,
7203 goal: SelectionGoal::None,
7204 }]);
7205 });
7206 }
7207 break;
7208 } else {
7209 // Cycle around to the start of the buffer, potentially moving back to the start of
7210 // the currently active diagnostic.
7211 active_primary_range.take();
7212 if direction == Direction::Prev {
7213 if search_start == buffer.len() {
7214 break;
7215 } else {
7216 search_start = buffer.len();
7217 }
7218 } else if search_start == 0 {
7219 break;
7220 } else {
7221 search_start = 0;
7222 }
7223 }
7224 }
7225 }
7226
7227 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7228 let snapshot = self
7229 .display_map
7230 .update(cx, |display_map, cx| display_map.snapshot(cx));
7231 let selection = self.selections.newest::<Point>(cx);
7232
7233 if !self.seek_in_direction(
7234 &snapshot,
7235 selection.head(),
7236 false,
7237 snapshot
7238 .buffer_snapshot
7239 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7240 cx,
7241 ) {
7242 let wrapped_point = Point::zero();
7243 self.seek_in_direction(
7244 &snapshot,
7245 wrapped_point,
7246 true,
7247 snapshot
7248 .buffer_snapshot
7249 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7250 cx,
7251 );
7252 }
7253 }
7254
7255 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7256 let snapshot = self
7257 .display_map
7258 .update(cx, |display_map, cx| display_map.snapshot(cx));
7259 let selection = self.selections.newest::<Point>(cx);
7260
7261 if !self.seek_in_direction(
7262 &snapshot,
7263 selection.head(),
7264 false,
7265 snapshot
7266 .buffer_snapshot
7267 .git_diff_hunks_in_range_rev(0..selection.head().row),
7268 cx,
7269 ) {
7270 let wrapped_point = snapshot.buffer_snapshot.max_point();
7271 self.seek_in_direction(
7272 &snapshot,
7273 wrapped_point,
7274 true,
7275 snapshot
7276 .buffer_snapshot
7277 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7278 cx,
7279 );
7280 }
7281 }
7282
7283 fn seek_in_direction(
7284 &mut self,
7285 snapshot: &DisplaySnapshot,
7286 initial_point: Point,
7287 is_wrapped: bool,
7288 hunks: impl Iterator<Item = DiffHunk<u32>>,
7289 cx: &mut ViewContext<Editor>,
7290 ) -> bool {
7291 let display_point = initial_point.to_display_point(snapshot);
7292 let mut hunks = hunks
7293 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7294 .filter(|hunk| {
7295 if is_wrapped {
7296 true
7297 } else {
7298 !hunk.contains_display_row(display_point.row())
7299 }
7300 })
7301 .dedup();
7302
7303 if let Some(hunk) = hunks.next() {
7304 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7305 let row = hunk.start_display_row();
7306 let point = DisplayPoint::new(row, 0);
7307 s.select_display_ranges([point..point]);
7308 });
7309
7310 true
7311 } else {
7312 false
7313 }
7314 }
7315
7316 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7317 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7318 }
7319
7320 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7321 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7322 }
7323
7324 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7325 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7326 }
7327
7328 pub fn go_to_type_definition_split(
7329 &mut self,
7330 _: &GoToTypeDefinitionSplit,
7331 cx: &mut ViewContext<Self>,
7332 ) {
7333 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7334 }
7335
7336 fn go_to_definition_of_kind(
7337 &mut self,
7338 kind: GotoDefinitionKind,
7339 split: bool,
7340 cx: &mut ViewContext<Self>,
7341 ) {
7342 let Some(workspace) = self.workspace() else {
7343 return;
7344 };
7345 let buffer = self.buffer.read(cx);
7346 let head = self.selections.newest::<usize>(cx).head();
7347 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7348 text_anchor
7349 } else {
7350 return;
7351 };
7352
7353 let project = workspace.read(cx).project().clone();
7354 let definitions = project.update(cx, |project, cx| match kind {
7355 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7356 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7357 });
7358
7359 cx.spawn(|editor, mut cx| async move {
7360 let definitions = definitions.await?;
7361 editor.update(&mut cx, |editor, cx| {
7362 editor.navigate_to_hover_links(
7363 definitions.into_iter().map(HoverLink::Text).collect(),
7364 split,
7365 cx,
7366 );
7367 })?;
7368 Ok::<(), anyhow::Error>(())
7369 })
7370 .detach_and_log_err(cx);
7371 }
7372
7373 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7374 let position = self.selections.newest_anchor().head();
7375 let Some((buffer, buffer_position)) = self
7376 .buffer
7377 .read(cx)
7378 .text_anchor_for_position(position.clone(), cx)
7379 else {
7380 return;
7381 };
7382
7383 cx.spawn(|editor, mut cx| async move {
7384 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7385 editor.update(&mut cx, |_, cx| {
7386 cx.open_url(&url);
7387 })
7388 } else {
7389 Ok(())
7390 }
7391 })
7392 .detach();
7393 }
7394
7395 pub fn navigate_to_hover_links(
7396 &mut self,
7397 mut definitions: Vec<HoverLink>,
7398 split: bool,
7399 cx: &mut ViewContext<Editor>,
7400 ) {
7401 // If there is one definition, just open it directly
7402 if definitions.len() == 1 {
7403 let definition = definitions.pop().unwrap();
7404 let target_task = match definition {
7405 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7406 HoverLink::InlayHint(lsp_location, server_id) => {
7407 self.compute_target_location(lsp_location, server_id, cx)
7408 }
7409 HoverLink::Url(url) => {
7410 cx.open_url(&url);
7411 Task::ready(Ok(None))
7412 }
7413 };
7414 cx.spawn(|editor, mut cx| async move {
7415 let target = target_task.await.context("target resolution task")?;
7416 if let Some(target) = target {
7417 editor.update(&mut cx, |editor, cx| {
7418 let Some(workspace) = editor.workspace() else {
7419 return;
7420 };
7421 let pane = workspace.read(cx).active_pane().clone();
7422
7423 let range = target.range.to_offset(target.buffer.read(cx));
7424 let range = editor.range_for_match(&range);
7425 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7426 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7427 s.select_ranges([range]);
7428 });
7429 } else {
7430 cx.window_context().defer(move |cx| {
7431 let target_editor: View<Self> =
7432 workspace.update(cx, |workspace, cx| {
7433 if split {
7434 workspace.split_project_item(target.buffer.clone(), cx)
7435 } else {
7436 workspace.open_project_item(target.buffer.clone(), cx)
7437 }
7438 });
7439 target_editor.update(cx, |target_editor, cx| {
7440 // When selecting a definition in a different buffer, disable the nav history
7441 // to avoid creating a history entry at the previous cursor location.
7442 pane.update(cx, |pane, _| pane.disable_history());
7443 target_editor.change_selections(
7444 Some(Autoscroll::fit()),
7445 cx,
7446 |s| {
7447 s.select_ranges([range]);
7448 },
7449 );
7450 pane.update(cx, |pane, _| pane.enable_history());
7451 });
7452 });
7453 }
7454 })
7455 } else {
7456 Ok(())
7457 }
7458 })
7459 .detach_and_log_err(cx);
7460 } else if !definitions.is_empty() {
7461 let replica_id = self.replica_id(cx);
7462 cx.spawn(|editor, mut cx| async move {
7463 let (title, location_tasks, workspace) = editor
7464 .update(&mut cx, |editor, cx| {
7465 let title = definitions
7466 .iter()
7467 .find_map(|definition| match definition {
7468 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7469 let buffer = origin.buffer.read(cx);
7470 format!(
7471 "Definitions for {}",
7472 buffer
7473 .text_for_range(origin.range.clone())
7474 .collect::<String>()
7475 )
7476 }),
7477 HoverLink::InlayHint(_, _) => None,
7478 HoverLink::Url(_) => None,
7479 })
7480 .unwrap_or("Definitions".to_string());
7481 let location_tasks = definitions
7482 .into_iter()
7483 .map(|definition| match definition {
7484 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7485 HoverLink::InlayHint(lsp_location, server_id) => {
7486 editor.compute_target_location(lsp_location, server_id, cx)
7487 }
7488 HoverLink::Url(_) => Task::ready(Ok(None)),
7489 })
7490 .collect::<Vec<_>>();
7491 (title, location_tasks, editor.workspace().clone())
7492 })
7493 .context("location tasks preparation")?;
7494
7495 let locations = futures::future::join_all(location_tasks)
7496 .await
7497 .into_iter()
7498 .filter_map(|location| location.transpose())
7499 .collect::<Result<_>>()
7500 .context("location tasks")?;
7501
7502 let Some(workspace) = workspace else {
7503 return Ok(());
7504 };
7505 workspace
7506 .update(&mut cx, |workspace, cx| {
7507 Self::open_locations_in_multibuffer(
7508 workspace, locations, replica_id, title, split, cx,
7509 )
7510 })
7511 .ok();
7512
7513 anyhow::Ok(())
7514 })
7515 .detach_and_log_err(cx);
7516 }
7517 }
7518
7519 fn compute_target_location(
7520 &self,
7521 lsp_location: lsp::Location,
7522 server_id: LanguageServerId,
7523 cx: &mut ViewContext<Editor>,
7524 ) -> Task<anyhow::Result<Option<Location>>> {
7525 let Some(project) = self.project.clone() else {
7526 return Task::Ready(Some(Ok(None)));
7527 };
7528
7529 cx.spawn(move |editor, mut cx| async move {
7530 let location_task = editor.update(&mut cx, |editor, cx| {
7531 project.update(cx, |project, cx| {
7532 let language_server_name =
7533 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7534 project
7535 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7536 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7537 });
7538 language_server_name.map(|language_server_name| {
7539 project.open_local_buffer_via_lsp(
7540 lsp_location.uri.clone(),
7541 server_id,
7542 language_server_name,
7543 cx,
7544 )
7545 })
7546 })
7547 })?;
7548 let location = match location_task {
7549 Some(task) => Some({
7550 let target_buffer_handle = task.await.context("open local buffer")?;
7551 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7552 let target_start = target_buffer
7553 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7554 let target_end = target_buffer
7555 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7556 target_buffer.anchor_after(target_start)
7557 ..target_buffer.anchor_before(target_end)
7558 })?;
7559 Location {
7560 buffer: target_buffer_handle,
7561 range,
7562 }
7563 }),
7564 None => None,
7565 };
7566 Ok(location)
7567 })
7568 }
7569
7570 pub fn find_all_references(
7571 &mut self,
7572 _: &FindAllReferences,
7573 cx: &mut ViewContext<Self>,
7574 ) -> Option<Task<Result<()>>> {
7575 let buffer = self.buffer.read(cx);
7576 let head = self.selections.newest::<usize>(cx).head();
7577 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7578 let replica_id = self.replica_id(cx);
7579
7580 let workspace = self.workspace()?;
7581 let project = workspace.read(cx).project().clone();
7582 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7583 Some(cx.spawn(|_, mut cx| async move {
7584 let locations = references.await?;
7585 if locations.is_empty() {
7586 return Ok(());
7587 }
7588
7589 workspace.update(&mut cx, |workspace, cx| {
7590 let title = locations
7591 .first()
7592 .as_ref()
7593 .map(|location| {
7594 let buffer = location.buffer.read(cx);
7595 format!(
7596 "References to `{}`",
7597 buffer
7598 .text_for_range(location.range.clone())
7599 .collect::<String>()
7600 )
7601 })
7602 .unwrap();
7603 Self::open_locations_in_multibuffer(
7604 workspace, locations, replica_id, title, false, cx,
7605 );
7606 })?;
7607
7608 Ok(())
7609 }))
7610 }
7611
7612 /// Opens a multibuffer with the given project locations in it
7613 pub fn open_locations_in_multibuffer(
7614 workspace: &mut Workspace,
7615 mut locations: Vec<Location>,
7616 replica_id: ReplicaId,
7617 title: String,
7618 split: bool,
7619 cx: &mut ViewContext<Workspace>,
7620 ) {
7621 // If there are multiple definitions, open them in a multibuffer
7622 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7623 let mut locations = locations.into_iter().peekable();
7624 let mut ranges_to_highlight = Vec::new();
7625 let capability = workspace.project().read(cx).capability();
7626
7627 let excerpt_buffer = cx.new_model(|cx| {
7628 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7629 while let Some(location) = locations.next() {
7630 let buffer = location.buffer.read(cx);
7631 let mut ranges_for_buffer = Vec::new();
7632 let range = location.range.to_offset(buffer);
7633 ranges_for_buffer.push(range.clone());
7634
7635 while let Some(next_location) = locations.peek() {
7636 if next_location.buffer == location.buffer {
7637 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7638 locations.next();
7639 } else {
7640 break;
7641 }
7642 }
7643
7644 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7645 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7646 location.buffer.clone(),
7647 ranges_for_buffer,
7648 1,
7649 cx,
7650 ))
7651 }
7652
7653 multibuffer.with_title(title)
7654 });
7655
7656 let editor = cx.new_view(|cx| {
7657 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7658 });
7659 editor.update(cx, |editor, cx| {
7660 editor.highlight_background::<Self>(
7661 ranges_to_highlight,
7662 |theme| theme.editor_highlighted_line_background,
7663 cx,
7664 );
7665 });
7666 if split {
7667 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7668 } else {
7669 workspace.add_item(Box::new(editor), cx);
7670 }
7671 }
7672
7673 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7674 use language::ToOffset as _;
7675
7676 let project = self.project.clone()?;
7677 let selection = self.selections.newest_anchor().clone();
7678 let (cursor_buffer, cursor_buffer_position) = self
7679 .buffer
7680 .read(cx)
7681 .text_anchor_for_position(selection.head(), cx)?;
7682 let (tail_buffer, _) = self
7683 .buffer
7684 .read(cx)
7685 .text_anchor_for_position(selection.tail(), cx)?;
7686 if tail_buffer != cursor_buffer {
7687 return None;
7688 }
7689
7690 let snapshot = cursor_buffer.read(cx).snapshot();
7691 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7692 let prepare_rename = project.update(cx, |project, cx| {
7693 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
7694 });
7695 drop(snapshot);
7696
7697 Some(cx.spawn(|this, mut cx| async move {
7698 let rename_range = if let Some(range) = prepare_rename.await? {
7699 Some(range)
7700 } else {
7701 this.update(&mut cx, |this, cx| {
7702 let buffer = this.buffer.read(cx).snapshot(cx);
7703 let mut buffer_highlights = this
7704 .document_highlights_for_position(selection.head(), &buffer)
7705 .filter(|highlight| {
7706 highlight.start.excerpt_id == selection.head().excerpt_id
7707 && highlight.end.excerpt_id == selection.head().excerpt_id
7708 });
7709 buffer_highlights
7710 .next()
7711 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7712 })?
7713 };
7714 if let Some(rename_range) = rename_range {
7715 this.update(&mut cx, |this, cx| {
7716 let snapshot = cursor_buffer.read(cx).snapshot();
7717 let rename_buffer_range = rename_range.to_offset(&snapshot);
7718 let cursor_offset_in_rename_range =
7719 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7720
7721 this.take_rename(false, cx);
7722 let buffer = this.buffer.read(cx).read(cx);
7723 let cursor_offset = selection.head().to_offset(&buffer);
7724 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7725 let rename_end = rename_start + rename_buffer_range.len();
7726 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7727 let mut old_highlight_id = None;
7728 let old_name: Arc<str> = buffer
7729 .chunks(rename_start..rename_end, true)
7730 .map(|chunk| {
7731 if old_highlight_id.is_none() {
7732 old_highlight_id = chunk.syntax_highlight_id;
7733 }
7734 chunk.text
7735 })
7736 .collect::<String>()
7737 .into();
7738
7739 drop(buffer);
7740
7741 // Position the selection in the rename editor so that it matches the current selection.
7742 this.show_local_selections = false;
7743 let rename_editor = cx.new_view(|cx| {
7744 let mut editor = Editor::single_line(cx);
7745 editor.buffer.update(cx, |buffer, cx| {
7746 buffer.edit([(0..0, old_name.clone())], None, cx)
7747 });
7748 editor.select_all(&SelectAll, cx);
7749 editor
7750 });
7751
7752 let ranges = this
7753 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7754 .into_iter()
7755 .flat_map(|(_, ranges)| ranges.into_iter())
7756 .chain(
7757 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7758 .into_iter()
7759 .flat_map(|(_, ranges)| ranges.into_iter()),
7760 )
7761 .collect();
7762
7763 this.highlight_text::<Rename>(
7764 ranges,
7765 HighlightStyle {
7766 fade_out: Some(0.6),
7767 ..Default::default()
7768 },
7769 cx,
7770 );
7771 let rename_focus_handle = rename_editor.focus_handle(cx);
7772 cx.focus(&rename_focus_handle);
7773 let block_id = this.insert_blocks(
7774 [BlockProperties {
7775 style: BlockStyle::Flex,
7776 position: range.start.clone(),
7777 height: 1,
7778 render: Arc::new({
7779 let rename_editor = rename_editor.clone();
7780 move |cx: &mut BlockContext| {
7781 let mut text_style = cx.editor_style.text.clone();
7782 if let Some(highlight_style) = old_highlight_id
7783 .and_then(|h| h.style(&cx.editor_style.syntax))
7784 {
7785 text_style = text_style.highlight(highlight_style);
7786 }
7787 div()
7788 .pl(cx.anchor_x)
7789 .child(EditorElement::new(
7790 &rename_editor,
7791 EditorStyle {
7792 background: cx.theme().system().transparent,
7793 local_player: cx.editor_style.local_player,
7794 text: text_style,
7795 scrollbar_width: cx.editor_style.scrollbar_width,
7796 syntax: cx.editor_style.syntax.clone(),
7797 status: cx.editor_style.status.clone(),
7798 inlays_style: HighlightStyle {
7799 color: Some(cx.theme().status().hint),
7800 font_weight: Some(FontWeight::BOLD),
7801 ..HighlightStyle::default()
7802 },
7803 suggestions_style: HighlightStyle {
7804 color: Some(cx.theme().status().predictive),
7805 ..HighlightStyle::default()
7806 },
7807 },
7808 ))
7809 .into_any_element()
7810 }
7811 }),
7812 disposition: BlockDisposition::Below,
7813 }],
7814 Some(Autoscroll::fit()),
7815 cx,
7816 )[0];
7817 this.pending_rename = Some(RenameState {
7818 range,
7819 old_name,
7820 editor: rename_editor,
7821 block_id,
7822 });
7823 })?;
7824 }
7825
7826 Ok(())
7827 }))
7828 }
7829
7830 pub fn confirm_rename(
7831 &mut self,
7832 _: &ConfirmRename,
7833 cx: &mut ViewContext<Self>,
7834 ) -> Option<Task<Result<()>>> {
7835 let rename = self.take_rename(false, cx)?;
7836 let workspace = self.workspace()?;
7837 let (start_buffer, start) = self
7838 .buffer
7839 .read(cx)
7840 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7841 let (end_buffer, end) = self
7842 .buffer
7843 .read(cx)
7844 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7845 if start_buffer != end_buffer {
7846 return None;
7847 }
7848
7849 let buffer = start_buffer;
7850 let range = start..end;
7851 let old_name = rename.old_name;
7852 let new_name = rename.editor.read(cx).text(cx);
7853
7854 let rename = workspace
7855 .read(cx)
7856 .project()
7857 .clone()
7858 .update(cx, |project, cx| {
7859 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7860 });
7861 let workspace = workspace.downgrade();
7862
7863 Some(cx.spawn(|editor, mut cx| async move {
7864 let project_transaction = rename.await?;
7865 Self::open_project_transaction(
7866 &editor,
7867 workspace,
7868 project_transaction,
7869 format!("Rename: {} → {}", old_name, new_name),
7870 cx.clone(),
7871 )
7872 .await?;
7873
7874 editor.update(&mut cx, |editor, cx| {
7875 editor.refresh_document_highlights(cx);
7876 })?;
7877 Ok(())
7878 }))
7879 }
7880
7881 fn take_rename(
7882 &mut self,
7883 moving_cursor: bool,
7884 cx: &mut ViewContext<Self>,
7885 ) -> Option<RenameState> {
7886 let rename = self.pending_rename.take()?;
7887 if rename.editor.focus_handle(cx).is_focused(cx) {
7888 cx.focus(&self.focus_handle);
7889 }
7890
7891 self.remove_blocks(
7892 [rename.block_id].into_iter().collect(),
7893 Some(Autoscroll::fit()),
7894 cx,
7895 );
7896 self.clear_highlights::<Rename>(cx);
7897 self.show_local_selections = true;
7898
7899 if moving_cursor {
7900 let rename_editor = rename.editor.read(cx);
7901 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7902
7903 // Update the selection to match the position of the selection inside
7904 // the rename editor.
7905 let snapshot = self.buffer.read(cx).read(cx);
7906 let rename_range = rename.range.to_offset(&snapshot);
7907 let cursor_in_editor = snapshot
7908 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7909 .min(rename_range.end);
7910 drop(snapshot);
7911
7912 self.change_selections(None, cx, |s| {
7913 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7914 });
7915 } else {
7916 self.refresh_document_highlights(cx);
7917 }
7918
7919 Some(rename)
7920 }
7921
7922 pub fn pending_rename(&self) -> Option<&RenameState> {
7923 self.pending_rename.as_ref()
7924 }
7925
7926 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7927 let project = match &self.project {
7928 Some(project) => project.clone(),
7929 None => return None,
7930 };
7931
7932 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7933 }
7934
7935 fn perform_format(
7936 &mut self,
7937 project: Model<Project>,
7938 trigger: FormatTrigger,
7939 cx: &mut ViewContext<Self>,
7940 ) -> Task<Result<()>> {
7941 let buffer = self.buffer().clone();
7942 let buffers = buffer.read(cx).all_buffers();
7943
7944 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
7945 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
7946
7947 cx.spawn(|_, mut cx| async move {
7948 let transaction = futures::select_biased! {
7949 _ = timeout => {
7950 log::warn!("timed out waiting for formatting");
7951 None
7952 }
7953 transaction = format.log_err().fuse() => transaction,
7954 };
7955
7956 buffer
7957 .update(&mut cx, |buffer, cx| {
7958 if let Some(transaction) = transaction {
7959 if !buffer.is_singleton() {
7960 buffer.push_transaction(&transaction.0, cx);
7961 }
7962 }
7963
7964 cx.notify();
7965 })
7966 .ok();
7967
7968 Ok(())
7969 })
7970 }
7971
7972 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
7973 if let Some(project) = self.project.clone() {
7974 self.buffer.update(cx, |multi_buffer, cx| {
7975 project.update(cx, |project, cx| {
7976 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
7977 });
7978 })
7979 }
7980 }
7981
7982 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
7983 cx.show_character_palette();
7984 }
7985
7986 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
7987 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
7988 let buffer = self.buffer.read(cx).snapshot(cx);
7989 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
7990 let is_valid = buffer
7991 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
7992 .any(|entry| {
7993 entry.diagnostic.is_primary
7994 && !entry.range.is_empty()
7995 && entry.range.start == primary_range_start
7996 && entry.diagnostic.message == active_diagnostics.primary_message
7997 });
7998
7999 if is_valid != active_diagnostics.is_valid {
8000 active_diagnostics.is_valid = is_valid;
8001 let mut new_styles = HashMap::default();
8002 for (block_id, diagnostic) in &active_diagnostics.blocks {
8003 new_styles.insert(
8004 *block_id,
8005 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8006 );
8007 }
8008 self.display_map
8009 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8010 }
8011 }
8012 }
8013
8014 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8015 self.dismiss_diagnostics(cx);
8016 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8017 let buffer = self.buffer.read(cx).snapshot(cx);
8018
8019 let mut primary_range = None;
8020 let mut primary_message = None;
8021 let mut group_end = Point::zero();
8022 let diagnostic_group = buffer
8023 .diagnostic_group::<Point>(group_id)
8024 .map(|entry| {
8025 if entry.range.end > group_end {
8026 group_end = entry.range.end;
8027 }
8028 if entry.diagnostic.is_primary {
8029 primary_range = Some(entry.range.clone());
8030 primary_message = Some(entry.diagnostic.message.clone());
8031 }
8032 entry
8033 })
8034 .collect::<Vec<_>>();
8035 let primary_range = primary_range?;
8036 let primary_message = primary_message?;
8037 let primary_range =
8038 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8039
8040 let blocks = display_map
8041 .insert_blocks(
8042 diagnostic_group.iter().map(|entry| {
8043 let diagnostic = entry.diagnostic.clone();
8044 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8045 BlockProperties {
8046 style: BlockStyle::Fixed,
8047 position: buffer.anchor_after(entry.range.start),
8048 height: message_height,
8049 render: diagnostic_block_renderer(diagnostic, true),
8050 disposition: BlockDisposition::Below,
8051 }
8052 }),
8053 cx,
8054 )
8055 .into_iter()
8056 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8057 .collect();
8058
8059 Some(ActiveDiagnosticGroup {
8060 primary_range,
8061 primary_message,
8062 blocks,
8063 is_valid: true,
8064 })
8065 });
8066 self.active_diagnostics.is_some()
8067 }
8068
8069 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8070 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8071 self.display_map.update(cx, |display_map, cx| {
8072 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8073 });
8074 cx.notify();
8075 }
8076 }
8077
8078 pub fn set_selections_from_remote(
8079 &mut self,
8080 selections: Vec<Selection<Anchor>>,
8081 pending_selection: Option<Selection<Anchor>>,
8082 cx: &mut ViewContext<Self>,
8083 ) {
8084 let old_cursor_position = self.selections.newest_anchor().head();
8085 self.selections.change_with(cx, |s| {
8086 s.select_anchors(selections);
8087 if let Some(pending_selection) = pending_selection {
8088 s.set_pending(pending_selection, SelectMode::Character);
8089 } else {
8090 s.clear_pending();
8091 }
8092 });
8093 self.selections_did_change(false, &old_cursor_position, cx);
8094 }
8095
8096 fn push_to_selection_history(&mut self) {
8097 self.selection_history.push(SelectionHistoryEntry {
8098 selections: self.selections.disjoint_anchors(),
8099 select_next_state: self.select_next_state.clone(),
8100 select_prev_state: self.select_prev_state.clone(),
8101 add_selections_state: self.add_selections_state.clone(),
8102 });
8103 }
8104
8105 pub fn transact(
8106 &mut self,
8107 cx: &mut ViewContext<Self>,
8108 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8109 ) -> Option<TransactionId> {
8110 self.start_transaction_at(Instant::now(), cx);
8111 update(self, cx);
8112 self.end_transaction_at(Instant::now(), cx)
8113 }
8114
8115 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8116 self.end_selection(cx);
8117 if let Some(tx_id) = self
8118 .buffer
8119 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8120 {
8121 self.selection_history
8122 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8123 }
8124 }
8125
8126 fn end_transaction_at(
8127 &mut self,
8128 now: Instant,
8129 cx: &mut ViewContext<Self>,
8130 ) -> Option<TransactionId> {
8131 if let Some(tx_id) = self
8132 .buffer
8133 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8134 {
8135 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8136 *end_selections = Some(self.selections.disjoint_anchors());
8137 } else {
8138 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8139 }
8140
8141 cx.emit(EditorEvent::Edited);
8142 Some(tx_id)
8143 } else {
8144 None
8145 }
8146 }
8147
8148 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8149 let mut fold_ranges = Vec::new();
8150
8151 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8152
8153 let selections = self.selections.all_adjusted(cx);
8154 for selection in selections {
8155 let range = selection.range().sorted();
8156 let buffer_start_row = range.start.row;
8157
8158 for row in (0..=range.end.row).rev() {
8159 let fold_range = display_map.foldable_range(row);
8160
8161 if let Some(fold_range) = fold_range {
8162 if fold_range.end.row >= buffer_start_row {
8163 fold_ranges.push(fold_range);
8164 if row <= range.start.row {
8165 break;
8166 }
8167 }
8168 }
8169 }
8170 }
8171
8172 self.fold_ranges(fold_ranges, true, cx);
8173 }
8174
8175 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8176 let buffer_row = fold_at.buffer_row;
8177 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8178
8179 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8180 let autoscroll = self
8181 .selections
8182 .all::<Point>(cx)
8183 .iter()
8184 .any(|selection| fold_range.overlaps(&selection.range()));
8185
8186 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8187 }
8188 }
8189
8190 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8191 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8192 let buffer = &display_map.buffer_snapshot;
8193 let selections = self.selections.all::<Point>(cx);
8194 let ranges = selections
8195 .iter()
8196 .map(|s| {
8197 let range = s.display_range(&display_map).sorted();
8198 let mut start = range.start.to_point(&display_map);
8199 let mut end = range.end.to_point(&display_map);
8200 start.column = 0;
8201 end.column = buffer.line_len(end.row);
8202 start..end
8203 })
8204 .collect::<Vec<_>>();
8205
8206 self.unfold_ranges(ranges, true, true, cx);
8207 }
8208
8209 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8210 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8211
8212 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8213 ..Point::new(
8214 unfold_at.buffer_row,
8215 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8216 );
8217
8218 let autoscroll = self
8219 .selections
8220 .all::<Point>(cx)
8221 .iter()
8222 .any(|selection| selection.range().overlaps(&intersection_range));
8223
8224 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8225 }
8226
8227 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8228 let selections = self.selections.all::<Point>(cx);
8229 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8230 let line_mode = self.selections.line_mode;
8231 let ranges = selections.into_iter().map(|s| {
8232 if line_mode {
8233 let start = Point::new(s.start.row, 0);
8234 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8235 start..end
8236 } else {
8237 s.start..s.end
8238 }
8239 });
8240 self.fold_ranges(ranges, true, cx);
8241 }
8242
8243 pub fn fold_ranges<T: ToOffset + Clone>(
8244 &mut self,
8245 ranges: impl IntoIterator<Item = Range<T>>,
8246 auto_scroll: bool,
8247 cx: &mut ViewContext<Self>,
8248 ) {
8249 let mut ranges = ranges.into_iter().peekable();
8250 if ranges.peek().is_some() {
8251 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8252
8253 if auto_scroll {
8254 self.request_autoscroll(Autoscroll::fit(), cx);
8255 }
8256
8257 cx.notify();
8258 }
8259 }
8260
8261 pub fn unfold_ranges<T: ToOffset + Clone>(
8262 &mut self,
8263 ranges: impl IntoIterator<Item = Range<T>>,
8264 inclusive: bool,
8265 auto_scroll: bool,
8266 cx: &mut ViewContext<Self>,
8267 ) {
8268 let mut ranges = ranges.into_iter().peekable();
8269 if ranges.peek().is_some() {
8270 self.display_map
8271 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8272 if auto_scroll {
8273 self.request_autoscroll(Autoscroll::fit(), cx);
8274 }
8275
8276 cx.notify();
8277 }
8278 }
8279
8280 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8281 if hovered != self.gutter_hovered {
8282 self.gutter_hovered = hovered;
8283 cx.notify();
8284 }
8285 }
8286
8287 pub fn insert_blocks(
8288 &mut self,
8289 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8290 autoscroll: Option<Autoscroll>,
8291 cx: &mut ViewContext<Self>,
8292 ) -> Vec<BlockId> {
8293 let blocks = self
8294 .display_map
8295 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8296 if let Some(autoscroll) = autoscroll {
8297 self.request_autoscroll(autoscroll, cx);
8298 }
8299 blocks
8300 }
8301
8302 pub fn replace_blocks(
8303 &mut self,
8304 blocks: HashMap<BlockId, RenderBlock>,
8305 autoscroll: Option<Autoscroll>,
8306 cx: &mut ViewContext<Self>,
8307 ) {
8308 self.display_map
8309 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8310 if let Some(autoscroll) = autoscroll {
8311 self.request_autoscroll(autoscroll, cx);
8312 }
8313 }
8314
8315 pub fn remove_blocks(
8316 &mut self,
8317 block_ids: HashSet<BlockId>,
8318 autoscroll: Option<Autoscroll>,
8319 cx: &mut ViewContext<Self>,
8320 ) {
8321 self.display_map.update(cx, |display_map, cx| {
8322 display_map.remove_blocks(block_ids, cx)
8323 });
8324 if let Some(autoscroll) = autoscroll {
8325 self.request_autoscroll(autoscroll, cx);
8326 }
8327 }
8328
8329 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8330 self.display_map
8331 .update(cx, |map, cx| map.snapshot(cx))
8332 .longest_row()
8333 }
8334
8335 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8336 self.display_map
8337 .update(cx, |map, cx| map.snapshot(cx))
8338 .max_point()
8339 }
8340
8341 pub fn text(&self, cx: &AppContext) -> String {
8342 self.buffer.read(cx).read(cx).text()
8343 }
8344
8345 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8346 let text = self.text(cx);
8347 let text = text.trim();
8348
8349 if text.is_empty() {
8350 return None;
8351 }
8352
8353 Some(text.to_string())
8354 }
8355
8356 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8357 self.transact(cx, |this, cx| {
8358 this.buffer
8359 .read(cx)
8360 .as_singleton()
8361 .expect("you can only call set_text on editors for singleton buffers")
8362 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8363 });
8364 }
8365
8366 pub fn display_text(&self, cx: &mut AppContext) -> String {
8367 self.display_map
8368 .update(cx, |map, cx| map.snapshot(cx))
8369 .text()
8370 }
8371
8372 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8373 let mut wrap_guides = smallvec::smallvec![];
8374
8375 if self.show_wrap_guides == Some(false) {
8376 return wrap_guides;
8377 }
8378
8379 let settings = self.buffer.read(cx).settings_at(0, cx);
8380 if settings.show_wrap_guides {
8381 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8382 wrap_guides.push((soft_wrap as usize, true));
8383 }
8384 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8385 }
8386
8387 wrap_guides
8388 }
8389
8390 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8391 let settings = self.buffer.read(cx).settings_at(0, cx);
8392 let mode = self
8393 .soft_wrap_mode_override
8394 .unwrap_or_else(|| settings.soft_wrap);
8395 match mode {
8396 language_settings::SoftWrap::None => SoftWrap::None,
8397 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8398 language_settings::SoftWrap::PreferredLineLength => {
8399 SoftWrap::Column(settings.preferred_line_length)
8400 }
8401 }
8402 }
8403
8404 pub fn set_soft_wrap_mode(
8405 &mut self,
8406 mode: language_settings::SoftWrap,
8407 cx: &mut ViewContext<Self>,
8408 ) {
8409 self.soft_wrap_mode_override = Some(mode);
8410 cx.notify();
8411 }
8412
8413 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8414 let rem_size = cx.rem_size();
8415 self.display_map.update(cx, |map, cx| {
8416 map.set_font(
8417 style.text.font(),
8418 style.text.font_size.to_pixels(rem_size),
8419 cx,
8420 )
8421 });
8422 self.style = Some(style);
8423 }
8424
8425 #[cfg(any(test, feature = "test-support"))]
8426 pub fn style(&self) -> Option<&EditorStyle> {
8427 self.style.as_ref()
8428 }
8429
8430 // Called by the element. This method is not designed to be called outside of the editor
8431 // element's layout code because it does not notify when rewrapping is computed synchronously.
8432 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8433 self.display_map
8434 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8435 }
8436
8437 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8438 if self.soft_wrap_mode_override.is_some() {
8439 self.soft_wrap_mode_override.take();
8440 } else {
8441 let soft_wrap = match self.soft_wrap_mode(cx) {
8442 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8443 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8444 };
8445 self.soft_wrap_mode_override = Some(soft_wrap);
8446 }
8447 cx.notify();
8448 }
8449
8450 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8451 self.show_gutter = show_gutter;
8452 cx.notify();
8453 }
8454
8455 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8456 self.show_wrap_guides = Some(show_gutter);
8457 cx.notify();
8458 }
8459
8460 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8461 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8462 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8463 cx.reveal_path(&file.abs_path(cx));
8464 }
8465 }
8466 }
8467
8468 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8469 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8470 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8471 if let Some(path) = file.abs_path(cx).to_str() {
8472 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8473 }
8474 }
8475 }
8476 }
8477
8478 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8479 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8480 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8481 if let Some(path) = file.path().to_str() {
8482 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8483 }
8484 }
8485 }
8486 }
8487
8488 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8489 use git::permalink::{build_permalink, BuildPermalinkParams};
8490
8491 let project = self.project.clone().ok_or_else(|| anyhow!("no project"))?;
8492 let project = project.read(cx);
8493
8494 let worktree = project
8495 .visible_worktrees(cx)
8496 .next()
8497 .ok_or_else(|| anyhow!("no worktree"))?;
8498
8499 let mut cwd = worktree.read(cx).abs_path().to_path_buf();
8500 cwd.push(".git");
8501
8502 const REMOTE_NAME: &'static str = "origin";
8503 let repo = project
8504 .fs()
8505 .open_repo(&cwd)
8506 .ok_or_else(|| anyhow!("no Git repo"))?;
8507 let origin_url = repo
8508 .lock()
8509 .remote_url(REMOTE_NAME)
8510 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8511 let sha = repo
8512 .lock()
8513 .head_sha()
8514 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8515
8516 let path = maybe!({
8517 let buffer = self.buffer().read(cx).as_singleton()?;
8518 let file = buffer.read(cx).file().and_then(|f| f.as_local())?;
8519 file.path().to_str().map(|path| path.to_string())
8520 })
8521 .ok_or_else(|| anyhow!("failed to determine file path"))?;
8522
8523 let selections = self.selections.all::<Point>(cx);
8524 let selection = selections.iter().peekable().next();
8525
8526 build_permalink(BuildPermalinkParams {
8527 remote_url: &origin_url,
8528 sha: &sha,
8529 path: &path,
8530 selection: selection.map(|selection| selection.range()),
8531 })
8532 }
8533
8534 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8535 let permalink = self.get_permalink_to_line(cx);
8536
8537 match permalink {
8538 Ok(permalink) => {
8539 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8540 }
8541 Err(err) => {
8542 let message = format!("Failed to copy permalink: {err}");
8543
8544 Err::<(), anyhow::Error>(err).log_err();
8545
8546 if let Some(workspace) = self.workspace() {
8547 workspace.update(cx, |workspace, cx| {
8548 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8549 })
8550 }
8551 }
8552 }
8553 }
8554
8555 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8556 let permalink = self.get_permalink_to_line(cx);
8557
8558 match permalink {
8559 Ok(permalink) => {
8560 cx.open_url(&permalink.to_string());
8561 }
8562 Err(err) => {
8563 let message = format!("Failed to open permalink: {err}");
8564
8565 Err::<(), anyhow::Error>(err).log_err();
8566
8567 if let Some(workspace) = self.workspace() {
8568 workspace.update(cx, |workspace, cx| {
8569 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8570 })
8571 }
8572 }
8573 }
8574 }
8575
8576 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8577 self.highlighted_rows = rows;
8578 }
8579
8580 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8581 self.highlighted_rows.clone()
8582 }
8583
8584 pub fn highlight_background<T: 'static>(
8585 &mut self,
8586 ranges: Vec<Range<Anchor>>,
8587 color_fetcher: fn(&ThemeColors) -> Hsla,
8588 cx: &mut ViewContext<Self>,
8589 ) {
8590 let snapshot = self.snapshot(cx);
8591 // this is to try and catch a panic sooner
8592 for range in &ranges {
8593 snapshot
8594 .buffer_snapshot
8595 .summary_for_anchor::<usize>(&range.start);
8596 snapshot
8597 .buffer_snapshot
8598 .summary_for_anchor::<usize>(&range.end);
8599 }
8600
8601 self.background_highlights
8602 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8603 cx.notify();
8604 }
8605
8606 pub(crate) fn highlight_inlay_background<T: 'static>(
8607 &mut self,
8608 ranges: Vec<InlayHighlight>,
8609 color_fetcher: fn(&ThemeColors) -> Hsla,
8610 cx: &mut ViewContext<Self>,
8611 ) {
8612 // TODO: no actual highlights happen for inlays currently, find a way to do that
8613 self.inlay_background_highlights
8614 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8615 cx.notify();
8616 }
8617
8618 pub fn clear_background_highlights<T: 'static>(
8619 &mut self,
8620 cx: &mut ViewContext<Self>,
8621 ) -> Option<BackgroundHighlight> {
8622 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8623 let inlay_highlights = self
8624 .inlay_background_highlights
8625 .remove(&Some(TypeId::of::<T>()));
8626 if text_highlights.is_some() || inlay_highlights.is_some() {
8627 cx.notify();
8628 }
8629 text_highlights
8630 }
8631
8632 #[cfg(feature = "test-support")]
8633 pub fn all_text_background_highlights(
8634 &mut self,
8635 cx: &mut ViewContext<Self>,
8636 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8637 let snapshot = self.snapshot(cx);
8638 let buffer = &snapshot.buffer_snapshot;
8639 let start = buffer.anchor_before(0);
8640 let end = buffer.anchor_after(buffer.len());
8641 let theme = cx.theme().colors();
8642 self.background_highlights_in_range(start..end, &snapshot, theme)
8643 }
8644
8645 fn document_highlights_for_position<'a>(
8646 &'a self,
8647 position: Anchor,
8648 buffer: &'a MultiBufferSnapshot,
8649 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8650 let read_highlights = self
8651 .background_highlights
8652 .get(&TypeId::of::<DocumentHighlightRead>())
8653 .map(|h| &h.1);
8654 let write_highlights = self
8655 .background_highlights
8656 .get(&TypeId::of::<DocumentHighlightWrite>())
8657 .map(|h| &h.1);
8658 let left_position = position.bias_left(buffer);
8659 let right_position = position.bias_right(buffer);
8660 read_highlights
8661 .into_iter()
8662 .chain(write_highlights)
8663 .flat_map(move |ranges| {
8664 let start_ix = match ranges.binary_search_by(|probe| {
8665 let cmp = probe.end.cmp(&left_position, buffer);
8666 if cmp.is_ge() {
8667 Ordering::Greater
8668 } else {
8669 Ordering::Less
8670 }
8671 }) {
8672 Ok(i) | Err(i) => i,
8673 };
8674
8675 let right_position = right_position.clone();
8676 ranges[start_ix..]
8677 .iter()
8678 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8679 })
8680 }
8681
8682 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8683 self.background_highlights
8684 .get(&TypeId::of::<T>())
8685 .map_or(false, |(_, highlights)| !highlights.is_empty())
8686 }
8687
8688 pub fn background_highlights_in_range(
8689 &self,
8690 search_range: Range<Anchor>,
8691 display_snapshot: &DisplaySnapshot,
8692 theme: &ThemeColors,
8693 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8694 let mut results = Vec::new();
8695 for (color_fetcher, ranges) in self.background_highlights.values() {
8696 let color = color_fetcher(theme);
8697 let start_ix = match ranges.binary_search_by(|probe| {
8698 let cmp = probe
8699 .end
8700 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8701 if cmp.is_gt() {
8702 Ordering::Greater
8703 } else {
8704 Ordering::Less
8705 }
8706 }) {
8707 Ok(i) | Err(i) => i,
8708 };
8709 for range in &ranges[start_ix..] {
8710 if range
8711 .start
8712 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8713 .is_ge()
8714 {
8715 break;
8716 }
8717
8718 let start = range.start.to_display_point(&display_snapshot);
8719 let end = range.end.to_display_point(&display_snapshot);
8720 results.push((start..end, color))
8721 }
8722 }
8723 results
8724 }
8725
8726 pub fn background_highlight_row_ranges<T: 'static>(
8727 &self,
8728 search_range: Range<Anchor>,
8729 display_snapshot: &DisplaySnapshot,
8730 count: usize,
8731 ) -> Vec<RangeInclusive<DisplayPoint>> {
8732 let mut results = Vec::new();
8733 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8734 return vec![];
8735 };
8736
8737 let start_ix = match ranges.binary_search_by(|probe| {
8738 let cmp = probe
8739 .end
8740 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8741 if cmp.is_gt() {
8742 Ordering::Greater
8743 } else {
8744 Ordering::Less
8745 }
8746 }) {
8747 Ok(i) | Err(i) => i,
8748 };
8749 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8750 if let (Some(start_display), Some(end_display)) = (start, end) {
8751 results.push(
8752 start_display.to_display_point(display_snapshot)
8753 ..=end_display.to_display_point(display_snapshot),
8754 );
8755 }
8756 };
8757 let mut start_row: Option<Point> = None;
8758 let mut end_row: Option<Point> = None;
8759 if ranges.len() > count {
8760 return Vec::new();
8761 }
8762 for range in &ranges[start_ix..] {
8763 if range
8764 .start
8765 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8766 .is_ge()
8767 {
8768 break;
8769 }
8770 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8771 if let Some(current_row) = &end_row {
8772 if end.row == current_row.row {
8773 continue;
8774 }
8775 }
8776 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8777 if start_row.is_none() {
8778 assert_eq!(end_row, None);
8779 start_row = Some(start);
8780 end_row = Some(end);
8781 continue;
8782 }
8783 if let Some(current_end) = end_row.as_mut() {
8784 if start.row > current_end.row + 1 {
8785 push_region(start_row, end_row);
8786 start_row = Some(start);
8787 end_row = Some(end);
8788 } else {
8789 // Merge two hunks.
8790 *current_end = end;
8791 }
8792 } else {
8793 unreachable!();
8794 }
8795 }
8796 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8797 push_region(start_row, end_row);
8798 results
8799 }
8800
8801 /// Get the text ranges corresponding to the redaction query
8802 pub fn redacted_ranges(
8803 &self,
8804 search_range: Range<Anchor>,
8805 display_snapshot: &DisplaySnapshot,
8806 cx: &mut ViewContext<Self>,
8807 ) -> Vec<Range<DisplayPoint>> {
8808 display_snapshot
8809 .buffer_snapshot
8810 .redacted_ranges(search_range, |file| {
8811 if let Some(file) = file {
8812 file.is_private()
8813 && EditorSettings::get(Some((file.worktree_id(), file.path())), cx)
8814 .redact_private_values
8815 } else {
8816 false
8817 }
8818 })
8819 .map(|range| {
8820 range.start.to_display_point(display_snapshot)
8821 ..range.end.to_display_point(display_snapshot)
8822 })
8823 .collect()
8824 }
8825
8826 pub fn highlight_text<T: 'static>(
8827 &mut self,
8828 ranges: Vec<Range<Anchor>>,
8829 style: HighlightStyle,
8830 cx: &mut ViewContext<Self>,
8831 ) {
8832 self.display_map.update(cx, |map, _| {
8833 map.highlight_text(TypeId::of::<T>(), ranges, style)
8834 });
8835 cx.notify();
8836 }
8837
8838 pub(crate) fn highlight_inlays<T: 'static>(
8839 &mut self,
8840 highlights: Vec<InlayHighlight>,
8841 style: HighlightStyle,
8842 cx: &mut ViewContext<Self>,
8843 ) {
8844 self.display_map.update(cx, |map, _| {
8845 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8846 });
8847 cx.notify();
8848 }
8849
8850 pub fn text_highlights<'a, T: 'static>(
8851 &'a self,
8852 cx: &'a AppContext,
8853 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8854 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8855 }
8856
8857 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8858 let cleared = self
8859 .display_map
8860 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8861 if cleared {
8862 cx.notify();
8863 }
8864 }
8865
8866 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8867 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8868 && self.focus_handle.is_focused(cx)
8869 }
8870
8871 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8872 cx.notify();
8873 }
8874
8875 fn on_buffer_event(
8876 &mut self,
8877 multibuffer: Model<MultiBuffer>,
8878 event: &multi_buffer::Event,
8879 cx: &mut ViewContext<Self>,
8880 ) {
8881 match event {
8882 multi_buffer::Event::Edited {
8883 singleton_buffer_edited,
8884 } => {
8885 self.refresh_active_diagnostics(cx);
8886 self.refresh_code_actions(cx);
8887 if self.has_active_copilot_suggestion(cx) {
8888 self.update_visible_copilot_suggestion(cx);
8889 }
8890 cx.emit(EditorEvent::BufferEdited);
8891 cx.emit(SearchEvent::MatchesInvalidated);
8892
8893 if *singleton_buffer_edited {
8894 if let Some(project) = &self.project {
8895 let project = project.read(cx);
8896 let languages_affected = multibuffer
8897 .read(cx)
8898 .all_buffers()
8899 .into_iter()
8900 .filter_map(|buffer| {
8901 let buffer = buffer.read(cx);
8902 let language = buffer.language()?;
8903 if project.is_local()
8904 && project.language_servers_for_buffer(buffer, cx).count() == 0
8905 {
8906 None
8907 } else {
8908 Some(language)
8909 }
8910 })
8911 .cloned()
8912 .collect::<HashSet<_>>();
8913 if !languages_affected.is_empty() {
8914 self.refresh_inlay_hints(
8915 InlayHintRefreshReason::BufferEdited(languages_affected),
8916 cx,
8917 );
8918 }
8919 }
8920 }
8921
8922 let Some(project) = &self.project else { return };
8923 let telemetry = project.read(cx).client().telemetry().clone();
8924 telemetry.log_edit_event("editor");
8925 }
8926 multi_buffer::Event::ExcerptsAdded {
8927 buffer,
8928 predecessor,
8929 excerpts,
8930 } => {
8931 cx.emit(EditorEvent::ExcerptsAdded {
8932 buffer: buffer.clone(),
8933 predecessor: *predecessor,
8934 excerpts: excerpts.clone(),
8935 });
8936 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8937 }
8938 multi_buffer::Event::ExcerptsRemoved { ids } => {
8939 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
8940 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
8941 }
8942 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
8943 multi_buffer::Event::LanguageChanged => {
8944 cx.emit(EditorEvent::Reparsed);
8945 cx.notify();
8946 }
8947 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
8948 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
8949 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
8950 cx.emit(EditorEvent::TitleChanged)
8951 }
8952 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
8953 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
8954 multi_buffer::Event::DiagnosticsUpdated => {
8955 self.refresh_active_diagnostics(cx);
8956 }
8957 _ => {}
8958 };
8959 }
8960
8961 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
8962 cx.notify();
8963 }
8964
8965 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
8966 self.refresh_copilot_suggestions(true, cx);
8967 self.refresh_inlay_hints(
8968 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
8969 self.selections.newest_anchor().head(),
8970 &self.buffer.read(cx).snapshot(cx),
8971 cx,
8972 )),
8973 cx,
8974 );
8975 let editor_settings = EditorSettings::get_global(cx);
8976 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
8977 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
8978 cx.notify();
8979 }
8980
8981 pub fn set_searchable(&mut self, searchable: bool) {
8982 self.searchable = searchable;
8983 }
8984
8985 pub fn searchable(&self) -> bool {
8986 self.searchable
8987 }
8988
8989 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
8990 let buffer = self.buffer.read(cx);
8991 if buffer.is_singleton() {
8992 cx.propagate();
8993 return;
8994 }
8995
8996 let Some(workspace) = self.workspace() else {
8997 cx.propagate();
8998 return;
8999 };
9000
9001 let mut new_selections_by_buffer = HashMap::default();
9002 for selection in self.selections.all::<usize>(cx) {
9003 for (buffer, mut range, _) in
9004 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9005 {
9006 if selection.reversed {
9007 mem::swap(&mut range.start, &mut range.end);
9008 }
9009 new_selections_by_buffer
9010 .entry(buffer)
9011 .or_insert(Vec::new())
9012 .push(range)
9013 }
9014 }
9015
9016 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
9017
9018 // We defer the pane interaction because we ourselves are a workspace item
9019 // and activating a new item causes the pane to call a method on us reentrantly,
9020 // which panics if we're on the stack.
9021 cx.window_context().defer(move |cx| {
9022 workspace.update(cx, |workspace, cx| {
9023 let pane = workspace.active_pane().clone();
9024 pane.update(cx, |pane, _| pane.disable_history());
9025
9026 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
9027 let editor = workspace.open_project_item::<Self>(buffer, cx);
9028 editor.update(cx, |editor, cx| {
9029 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9030 s.select_ranges(ranges);
9031 });
9032 });
9033 }
9034
9035 pane.update(cx, |pane, _| pane.enable_history());
9036 })
9037 });
9038 }
9039
9040 fn jump(
9041 &mut self,
9042 path: ProjectPath,
9043 position: Point,
9044 anchor: language::Anchor,
9045 cx: &mut ViewContext<Self>,
9046 ) {
9047 let workspace = self.workspace();
9048 cx.spawn(|_, mut cx| async move {
9049 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9050 let editor = workspace.update(&mut cx, |workspace, cx| {
9051 workspace.open_path(path, None, true, cx)
9052 })?;
9053 let editor = editor
9054 .await?
9055 .downcast::<Editor>()
9056 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9057 .downgrade();
9058 editor.update(&mut cx, |editor, cx| {
9059 let buffer = editor
9060 .buffer()
9061 .read(cx)
9062 .as_singleton()
9063 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9064 let buffer = buffer.read(cx);
9065 let cursor = if buffer.can_resolve(&anchor) {
9066 language::ToPoint::to_point(&anchor, buffer)
9067 } else {
9068 buffer.clip_point(position, Bias::Left)
9069 };
9070
9071 let nav_history = editor.nav_history.take();
9072 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9073 s.select_ranges([cursor..cursor]);
9074 });
9075 editor.nav_history = nav_history;
9076
9077 anyhow::Ok(())
9078 })??;
9079
9080 anyhow::Ok(())
9081 })
9082 .detach_and_log_err(cx);
9083 }
9084
9085 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9086 let snapshot = self.buffer.read(cx).read(cx);
9087 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9088 Some(
9089 ranges
9090 .iter()
9091 .map(move |range| {
9092 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9093 })
9094 .collect(),
9095 )
9096 }
9097
9098 fn selection_replacement_ranges(
9099 &self,
9100 range: Range<OffsetUtf16>,
9101 cx: &AppContext,
9102 ) -> Vec<Range<OffsetUtf16>> {
9103 let selections = self.selections.all::<OffsetUtf16>(cx);
9104 let newest_selection = selections
9105 .iter()
9106 .max_by_key(|selection| selection.id)
9107 .unwrap();
9108 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9109 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9110 let snapshot = self.buffer.read(cx).read(cx);
9111 selections
9112 .into_iter()
9113 .map(|mut selection| {
9114 selection.start.0 =
9115 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9116 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9117 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9118 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9119 })
9120 .collect()
9121 }
9122
9123 fn report_copilot_event(
9124 &self,
9125 suggestion_id: Option<String>,
9126 suggestion_accepted: bool,
9127 cx: &AppContext,
9128 ) {
9129 let Some(project) = &self.project else { return };
9130
9131 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
9132 let file_extension = self
9133 .buffer
9134 .read(cx)
9135 .as_singleton()
9136 .and_then(|b| b.read(cx).file())
9137 .and_then(|file| Path::new(file.file_name(cx)).extension())
9138 .and_then(|e| e.to_str())
9139 .map(|a| a.to_string());
9140
9141 let telemetry = project.read(cx).client().telemetry().clone();
9142
9143 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
9144 }
9145
9146 #[cfg(any(test, feature = "test-support"))]
9147 fn report_editor_event(
9148 &self,
9149 _operation: &'static str,
9150 _file_extension: Option<String>,
9151 _cx: &AppContext,
9152 ) {
9153 }
9154
9155 #[cfg(not(any(test, feature = "test-support")))]
9156 fn report_editor_event(
9157 &self,
9158 operation: &'static str,
9159 file_extension: Option<String>,
9160 cx: &AppContext,
9161 ) {
9162 let Some(project) = &self.project else { return };
9163
9164 // If None, we are in a file without an extension
9165 let file = self
9166 .buffer
9167 .read(cx)
9168 .as_singleton()
9169 .and_then(|b| b.read(cx).file());
9170 let file_extension = file_extension.or(file
9171 .as_ref()
9172 .and_then(|file| Path::new(file.file_name(cx)).extension())
9173 .and_then(|e| e.to_str())
9174 .map(|a| a.to_string()));
9175
9176 let vim_mode = cx
9177 .global::<SettingsStore>()
9178 .raw_user_settings()
9179 .get("vim_mode")
9180 == Some(&serde_json::Value::Bool(true));
9181 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9182 let copilot_enabled_for_language = self
9183 .buffer
9184 .read(cx)
9185 .settings_at(0, cx)
9186 .show_copilot_suggestions;
9187
9188 let telemetry = project.read(cx).client().telemetry().clone();
9189 telemetry.report_editor_event(
9190 file_extension,
9191 vim_mode,
9192 operation,
9193 copilot_enabled,
9194 copilot_enabled_for_language,
9195 )
9196 }
9197
9198 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9199 /// with each line being an array of {text, highlight} objects.
9200 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9201 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9202 return;
9203 };
9204
9205 #[derive(Serialize)]
9206 struct Chunk<'a> {
9207 text: String,
9208 highlight: Option<&'a str>,
9209 }
9210
9211 let snapshot = buffer.read(cx).snapshot();
9212 let range = self
9213 .selected_text_range(cx)
9214 .and_then(|selected_range| {
9215 if selected_range.is_empty() {
9216 None
9217 } else {
9218 Some(selected_range)
9219 }
9220 })
9221 .unwrap_or_else(|| 0..snapshot.len());
9222
9223 let chunks = snapshot.chunks(range, true);
9224 let mut lines = Vec::new();
9225 let mut line: VecDeque<Chunk> = VecDeque::new();
9226
9227 let Some(style) = self.style.as_ref() else {
9228 return;
9229 };
9230
9231 for chunk in chunks {
9232 let highlight = chunk
9233 .syntax_highlight_id
9234 .and_then(|id| id.name(&style.syntax));
9235 let mut chunk_lines = chunk.text.split("\n").peekable();
9236 while let Some(text) = chunk_lines.next() {
9237 let mut merged_with_last_token = false;
9238 if let Some(last_token) = line.back_mut() {
9239 if last_token.highlight == highlight {
9240 last_token.text.push_str(text);
9241 merged_with_last_token = true;
9242 }
9243 }
9244
9245 if !merged_with_last_token {
9246 line.push_back(Chunk {
9247 text: text.into(),
9248 highlight,
9249 });
9250 }
9251
9252 if chunk_lines.peek().is_some() {
9253 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9254 line.pop_front();
9255 }
9256 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9257 line.pop_back();
9258 }
9259
9260 lines.push(mem::take(&mut line));
9261 }
9262 }
9263 }
9264
9265 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9266 return;
9267 };
9268 cx.write_to_clipboard(ClipboardItem::new(lines));
9269 }
9270
9271 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9272 &self.inlay_hint_cache
9273 }
9274
9275 pub fn replay_insert_event(
9276 &mut self,
9277 text: &str,
9278 relative_utf16_range: Option<Range<isize>>,
9279 cx: &mut ViewContext<Self>,
9280 ) {
9281 if !self.input_enabled {
9282 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9283 return;
9284 }
9285 if let Some(relative_utf16_range) = relative_utf16_range {
9286 let selections = self.selections.all::<OffsetUtf16>(cx);
9287 self.change_selections(None, cx, |s| {
9288 let new_ranges = selections.into_iter().map(|range| {
9289 let start = OffsetUtf16(
9290 range
9291 .head()
9292 .0
9293 .saturating_add_signed(relative_utf16_range.start),
9294 );
9295 let end = OffsetUtf16(
9296 range
9297 .head()
9298 .0
9299 .saturating_add_signed(relative_utf16_range.end),
9300 );
9301 start..end
9302 });
9303 s.select_ranges(new_ranges);
9304 });
9305 }
9306
9307 self.handle_input(text, cx);
9308 }
9309
9310 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9311 let Some(project) = self.project.as_ref() else {
9312 return false;
9313 };
9314 let project = project.read(cx);
9315
9316 let mut supports = false;
9317 self.buffer().read(cx).for_each_buffer(|buffer| {
9318 if !supports {
9319 supports = project
9320 .language_servers_for_buffer(buffer.read(cx), cx)
9321 .any(
9322 |(_, server)| match server.capabilities().inlay_hint_provider {
9323 Some(lsp::OneOf::Left(enabled)) => enabled,
9324 Some(lsp::OneOf::Right(_)) => true,
9325 None => false,
9326 },
9327 )
9328 }
9329 });
9330 supports
9331 }
9332
9333 pub fn focus(&self, cx: &mut WindowContext) {
9334 cx.focus(&self.focus_handle)
9335 }
9336
9337 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9338 self.focus_handle.is_focused(cx)
9339 }
9340
9341 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9342 cx.emit(EditorEvent::Focused);
9343
9344 if let Some(rename) = self.pending_rename.as_ref() {
9345 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9346 cx.focus(&rename_editor_focus_handle);
9347 } else {
9348 self.blink_manager.update(cx, BlinkManager::enable);
9349 self.show_cursor_names(cx);
9350 self.buffer.update(cx, |buffer, cx| {
9351 buffer.finalize_last_transaction(cx);
9352 if self.leader_peer_id.is_none() {
9353 buffer.set_active_selections(
9354 &self.selections.disjoint_anchors(),
9355 self.selections.line_mode,
9356 self.cursor_shape,
9357 cx,
9358 );
9359 }
9360 });
9361 }
9362 }
9363
9364 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9365 self.blink_manager.update(cx, BlinkManager::disable);
9366 self.buffer
9367 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9368 self.hide_context_menu(cx);
9369 hide_hover(self, cx);
9370 cx.emit(EditorEvent::Blurred);
9371 cx.notify();
9372 }
9373
9374 pub fn register_action<A: Action>(
9375 &mut self,
9376 listener: impl Fn(&A, &mut WindowContext) + 'static,
9377 ) -> &mut Self {
9378 let listener = Arc::new(listener);
9379
9380 self.editor_actions.push(Box::new(move |cx| {
9381 let _view = cx.view().clone();
9382 let cx = cx.window_context();
9383 let listener = listener.clone();
9384 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9385 let action = action.downcast_ref().unwrap();
9386 if phase == DispatchPhase::Bubble {
9387 listener(action, cx)
9388 }
9389 })
9390 }));
9391 self
9392 }
9393}
9394
9395pub trait CollaborationHub {
9396 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9397 fn user_participant_indices<'a>(
9398 &self,
9399 cx: &'a AppContext,
9400 ) -> &'a HashMap<u64, ParticipantIndex>;
9401 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9402}
9403
9404impl CollaborationHub for Model<Project> {
9405 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9406 self.read(cx).collaborators()
9407 }
9408
9409 fn user_participant_indices<'a>(
9410 &self,
9411 cx: &'a AppContext,
9412 ) -> &'a HashMap<u64, ParticipantIndex> {
9413 self.read(cx).user_store().read(cx).participant_indices()
9414 }
9415
9416 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9417 let this = self.read(cx);
9418 let user_ids = this.collaborators().values().map(|c| c.user_id);
9419 this.user_store().read_with(cx, |user_store, cx| {
9420 user_store.participant_names(user_ids, cx)
9421 })
9422 }
9423}
9424
9425pub trait CompletionProvider {
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
9433 fn resolve_completions(
9434 &self,
9435 completion_indices: Vec<usize>,
9436 completions: Arc<RwLock<Box<[Completion]>>>,
9437 cx: &mut ViewContext<Editor>,
9438 ) -> Task<Result<bool>>;
9439
9440 fn apply_additional_edits_for_completion(
9441 &self,
9442 buffer: Model<Buffer>,
9443 completion: Completion,
9444 push_to_history: bool,
9445 cx: &mut ViewContext<Editor>,
9446 ) -> Task<Result<Option<language::Transaction>>>;
9447}
9448
9449impl CompletionProvider for Model<Project> {
9450 fn completions(
9451 &self,
9452 buffer: &Model<Buffer>,
9453 buffer_position: text::Anchor,
9454 cx: &mut ViewContext<Editor>,
9455 ) -> Task<Result<Vec<Completion>>> {
9456 self.update(cx, |project, cx| {
9457 project.completions(&buffer, buffer_position, cx)
9458 })
9459 }
9460
9461 fn resolve_completions(
9462 &self,
9463 completion_indices: Vec<usize>,
9464 completions: Arc<RwLock<Box<[Completion]>>>,
9465 cx: &mut ViewContext<Editor>,
9466 ) -> Task<Result<bool>> {
9467 self.update(cx, |project, cx| {
9468 project.resolve_completions(completion_indices, completions, cx)
9469 })
9470 }
9471
9472 fn apply_additional_edits_for_completion(
9473 &self,
9474 buffer: Model<Buffer>,
9475 completion: Completion,
9476 push_to_history: bool,
9477 cx: &mut ViewContext<Editor>,
9478 ) -> Task<Result<Option<language::Transaction>>> {
9479 self.update(cx, |project, cx| {
9480 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9481 })
9482 }
9483}
9484
9485fn inlay_hint_settings(
9486 location: Anchor,
9487 snapshot: &MultiBufferSnapshot,
9488 cx: &mut ViewContext<'_, Editor>,
9489) -> InlayHintSettings {
9490 let file = snapshot.file_at(location);
9491 let language = snapshot.language_at(location);
9492 let settings = all_language_settings(file, cx);
9493 settings
9494 .language(language.map(|l| l.name()).as_deref())
9495 .inlay_hints
9496}
9497
9498fn consume_contiguous_rows(
9499 contiguous_row_selections: &mut Vec<Selection<Point>>,
9500 selection: &Selection<Point>,
9501 display_map: &DisplaySnapshot,
9502 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9503) -> (u32, u32) {
9504 contiguous_row_selections.push(selection.clone());
9505 let start_row = selection.start.row;
9506 let mut end_row = ending_row(selection, display_map);
9507
9508 while let Some(next_selection) = selections.peek() {
9509 if next_selection.start.row <= end_row {
9510 end_row = ending_row(next_selection, display_map);
9511 contiguous_row_selections.push(selections.next().unwrap().clone());
9512 } else {
9513 break;
9514 }
9515 }
9516 (start_row, end_row)
9517}
9518
9519fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9520 if next_selection.end.column > 0 || next_selection.is_empty() {
9521 display_map.next_line_boundary(next_selection.end).0.row + 1
9522 } else {
9523 next_selection.end.row
9524 }
9525}
9526
9527impl EditorSnapshot {
9528 pub fn remote_selections_in_range<'a>(
9529 &'a self,
9530 range: &'a Range<Anchor>,
9531 collaboration_hub: &dyn CollaborationHub,
9532 cx: &'a AppContext,
9533 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9534 let participant_names = collaboration_hub.user_names(cx);
9535 let participant_indices = collaboration_hub.user_participant_indices(cx);
9536 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9537 let collaborators_by_replica_id = collaborators_by_peer_id
9538 .iter()
9539 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9540 .collect::<HashMap<_, _>>();
9541 self.buffer_snapshot
9542 .remote_selections_in_range(range)
9543 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9544 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9545 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9546 let user_name = participant_names.get(&collaborator.user_id).cloned();
9547 Some(RemoteSelection {
9548 replica_id,
9549 selection,
9550 cursor_shape,
9551 line_mode,
9552 participant_index,
9553 peer_id: collaborator.peer_id,
9554 user_name,
9555 })
9556 })
9557 }
9558
9559 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9560 self.display_snapshot.buffer_snapshot.language_at(position)
9561 }
9562
9563 pub fn is_focused(&self) -> bool {
9564 self.is_focused
9565 }
9566
9567 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9568 self.placeholder_text.as_ref()
9569 }
9570
9571 pub fn scroll_position(&self) -> gpui::Point<f32> {
9572 self.scroll_anchor.scroll_position(&self.display_snapshot)
9573 }
9574
9575 pub fn gutter_dimensions(
9576 &self,
9577 font_id: FontId,
9578 font_size: Pixels,
9579 em_width: Pixels,
9580 max_line_number_width: Pixels,
9581 cx: &AppContext,
9582 ) -> GutterDimensions {
9583 if self.show_gutter {
9584 let descent = cx.text_system().descent(font_id, font_size);
9585 let gutter_padding_factor = 4.0;
9586 let gutter_padding = (em_width * gutter_padding_factor).round();
9587 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9588 let min_width_for_number_on_gutter = em_width * 4.0;
9589 let gutter_width =
9590 max_line_number_width.max(min_width_for_number_on_gutter) + gutter_padding * 2.0;
9591 let gutter_margin = -descent;
9592
9593 GutterDimensions {
9594 padding: gutter_padding,
9595 width: gutter_width,
9596 margin: gutter_margin,
9597 }
9598 } else {
9599 GutterDimensions::default()
9600 }
9601 }
9602}
9603
9604impl Deref for EditorSnapshot {
9605 type Target = DisplaySnapshot;
9606
9607 fn deref(&self) -> &Self::Target {
9608 &self.display_snapshot
9609 }
9610}
9611
9612#[derive(Clone, Debug, PartialEq, Eq)]
9613pub enum EditorEvent {
9614 InputIgnored {
9615 text: Arc<str>,
9616 },
9617 InputHandled {
9618 utf16_range_to_replace: Option<Range<isize>>,
9619 text: Arc<str>,
9620 },
9621 ExcerptsAdded {
9622 buffer: Model<Buffer>,
9623 predecessor: ExcerptId,
9624 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9625 },
9626 ExcerptsRemoved {
9627 ids: Vec<ExcerptId>,
9628 },
9629 BufferEdited,
9630 Edited,
9631 Reparsed,
9632 Focused,
9633 Blurred,
9634 DirtyChanged,
9635 Saved,
9636 TitleChanged,
9637 DiffBaseChanged,
9638 SelectionsChanged {
9639 local: bool,
9640 },
9641 ScrollPositionChanged {
9642 local: bool,
9643 autoscroll: bool,
9644 },
9645 Closed,
9646}
9647
9648impl EventEmitter<EditorEvent> for Editor {}
9649
9650impl FocusableView for Editor {
9651 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9652 self.focus_handle.clone()
9653 }
9654}
9655
9656impl Render for Editor {
9657 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9658 let settings = ThemeSettings::get_global(cx);
9659 let text_style = match self.mode {
9660 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9661 color: cx.theme().colors().editor_foreground,
9662 font_family: settings.ui_font.family.clone(),
9663 font_features: settings.ui_font.features,
9664 font_size: rems(0.875).into(),
9665 font_weight: FontWeight::NORMAL,
9666 font_style: FontStyle::Normal,
9667 line_height: relative(settings.buffer_line_height.value()),
9668 background_color: None,
9669 underline: None,
9670 strikethrough: None,
9671 white_space: WhiteSpace::Normal,
9672 },
9673
9674 EditorMode::Full => TextStyle {
9675 color: cx.theme().colors().editor_foreground,
9676 font_family: settings.buffer_font.family.clone(),
9677 font_features: settings.buffer_font.features,
9678 font_size: settings.buffer_font_size(cx).into(),
9679 font_weight: FontWeight::NORMAL,
9680 font_style: FontStyle::Normal,
9681 line_height: relative(settings.buffer_line_height.value()),
9682 background_color: None,
9683 underline: None,
9684 strikethrough: None,
9685 white_space: WhiteSpace::Normal,
9686 },
9687 };
9688
9689 let background = match self.mode {
9690 EditorMode::SingleLine => cx.theme().system().transparent,
9691 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9692 EditorMode::Full => cx.theme().colors().editor_background,
9693 };
9694
9695 EditorElement::new(
9696 cx.view(),
9697 EditorStyle {
9698 background,
9699 local_player: cx.theme().players().local(),
9700 text: text_style,
9701 scrollbar_width: px(12.),
9702 syntax: cx.theme().syntax().clone(),
9703 status: cx.theme().status().clone(),
9704 inlays_style: HighlightStyle {
9705 color: Some(cx.theme().status().hint),
9706 font_weight: Some(FontWeight::BOLD),
9707 ..HighlightStyle::default()
9708 },
9709 suggestions_style: HighlightStyle {
9710 color: Some(cx.theme().status().predictive),
9711 ..HighlightStyle::default()
9712 },
9713 },
9714 )
9715 }
9716}
9717
9718impl ViewInputHandler for Editor {
9719 fn text_for_range(
9720 &mut self,
9721 range_utf16: Range<usize>,
9722 cx: &mut ViewContext<Self>,
9723 ) -> Option<String> {
9724 Some(
9725 self.buffer
9726 .read(cx)
9727 .read(cx)
9728 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9729 .collect(),
9730 )
9731 }
9732
9733 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9734 // Prevent the IME menu from appearing when holding down an alphabetic key
9735 // while input is disabled.
9736 if !self.input_enabled {
9737 return None;
9738 }
9739
9740 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9741 Some(range.start.0..range.end.0)
9742 }
9743
9744 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9745 let snapshot = self.buffer.read(cx).read(cx);
9746 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9747 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9748 }
9749
9750 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9751 self.clear_highlights::<InputComposition>(cx);
9752 self.ime_transaction.take();
9753 }
9754
9755 fn replace_text_in_range(
9756 &mut self,
9757 range_utf16: Option<Range<usize>>,
9758 text: &str,
9759 cx: &mut ViewContext<Self>,
9760 ) {
9761 if !self.input_enabled {
9762 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9763 return;
9764 }
9765
9766 self.transact(cx, |this, cx| {
9767 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9768 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9769 Some(this.selection_replacement_ranges(range_utf16, cx))
9770 } else {
9771 this.marked_text_ranges(cx)
9772 };
9773
9774 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9775 let newest_selection_id = this.selections.newest_anchor().id;
9776 this.selections
9777 .all::<OffsetUtf16>(cx)
9778 .iter()
9779 .zip(ranges_to_replace.iter())
9780 .find_map(|(selection, range)| {
9781 if selection.id == newest_selection_id {
9782 Some(
9783 (range.start.0 as isize - selection.head().0 as isize)
9784 ..(range.end.0 as isize - selection.head().0 as isize),
9785 )
9786 } else {
9787 None
9788 }
9789 })
9790 });
9791
9792 cx.emit(EditorEvent::InputHandled {
9793 utf16_range_to_replace: range_to_replace,
9794 text: text.into(),
9795 });
9796
9797 if let Some(new_selected_ranges) = new_selected_ranges {
9798 this.change_selections(None, cx, |selections| {
9799 selections.select_ranges(new_selected_ranges)
9800 });
9801 this.backspace(&Default::default(), cx);
9802 }
9803
9804 this.handle_input(text, cx);
9805 });
9806
9807 if let Some(transaction) = self.ime_transaction {
9808 self.buffer.update(cx, |buffer, cx| {
9809 buffer.group_until_transaction(transaction, cx);
9810 });
9811 }
9812
9813 self.unmark_text(cx);
9814 }
9815
9816 fn replace_and_mark_text_in_range(
9817 &mut self,
9818 range_utf16: Option<Range<usize>>,
9819 text: &str,
9820 new_selected_range_utf16: Option<Range<usize>>,
9821 cx: &mut ViewContext<Self>,
9822 ) {
9823 if !self.input_enabled {
9824 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9825 return;
9826 }
9827
9828 let transaction = self.transact(cx, |this, cx| {
9829 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9830 let snapshot = this.buffer.read(cx).read(cx);
9831 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9832 for marked_range in &mut marked_ranges {
9833 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9834 marked_range.start.0 += relative_range_utf16.start;
9835 marked_range.start =
9836 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9837 marked_range.end =
9838 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9839 }
9840 }
9841 Some(marked_ranges)
9842 } else if let Some(range_utf16) = range_utf16 {
9843 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9844 Some(this.selection_replacement_ranges(range_utf16, cx))
9845 } else {
9846 None
9847 };
9848
9849 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9850 let newest_selection_id = this.selections.newest_anchor().id;
9851 this.selections
9852 .all::<OffsetUtf16>(cx)
9853 .iter()
9854 .zip(ranges_to_replace.iter())
9855 .find_map(|(selection, range)| {
9856 if selection.id == newest_selection_id {
9857 Some(
9858 (range.start.0 as isize - selection.head().0 as isize)
9859 ..(range.end.0 as isize - selection.head().0 as isize),
9860 )
9861 } else {
9862 None
9863 }
9864 })
9865 });
9866
9867 cx.emit(EditorEvent::InputHandled {
9868 utf16_range_to_replace: range_to_replace,
9869 text: text.into(),
9870 });
9871
9872 if let Some(ranges) = ranges_to_replace {
9873 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9874 }
9875
9876 let marked_ranges = {
9877 let snapshot = this.buffer.read(cx).read(cx);
9878 this.selections
9879 .disjoint_anchors()
9880 .iter()
9881 .map(|selection| {
9882 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9883 })
9884 .collect::<Vec<_>>()
9885 };
9886
9887 if text.is_empty() {
9888 this.unmark_text(cx);
9889 } else {
9890 this.highlight_text::<InputComposition>(
9891 marked_ranges.clone(),
9892 HighlightStyle {
9893 underline: Some(UnderlineStyle {
9894 thickness: px(1.),
9895 color: None,
9896 wavy: false,
9897 }),
9898 ..Default::default()
9899 },
9900 cx,
9901 );
9902 }
9903
9904 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
9905 let use_autoclose = this.use_autoclose;
9906 this.set_use_autoclose(false);
9907 this.handle_input(text, cx);
9908 this.set_use_autoclose(use_autoclose);
9909
9910 if let Some(new_selected_range) = new_selected_range_utf16 {
9911 let snapshot = this.buffer.read(cx).read(cx);
9912 let new_selected_ranges = marked_ranges
9913 .into_iter()
9914 .map(|marked_range| {
9915 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
9916 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
9917 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
9918 snapshot.clip_offset_utf16(new_start, Bias::Left)
9919 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
9920 })
9921 .collect::<Vec<_>>();
9922
9923 drop(snapshot);
9924 this.change_selections(None, cx, |selections| {
9925 selections.select_ranges(new_selected_ranges)
9926 });
9927 }
9928 });
9929
9930 self.ime_transaction = self.ime_transaction.or(transaction);
9931 if let Some(transaction) = self.ime_transaction {
9932 self.buffer.update(cx, |buffer, cx| {
9933 buffer.group_until_transaction(transaction, cx);
9934 });
9935 }
9936
9937 if self.text_highlights::<InputComposition>(cx).is_none() {
9938 self.ime_transaction.take();
9939 }
9940 }
9941
9942 fn bounds_for_range(
9943 &mut self,
9944 range_utf16: Range<usize>,
9945 element_bounds: gpui::Bounds<Pixels>,
9946 cx: &mut ViewContext<Self>,
9947 ) -> Option<gpui::Bounds<Pixels>> {
9948 let text_layout_details = self.text_layout_details(cx);
9949 let style = &text_layout_details.editor_style;
9950 let font_id = cx.text_system().resolve_font(&style.text.font());
9951 let font_size = style.text.font_size.to_pixels(cx.rem_size());
9952 let line_height = style.text.line_height_in_pixels(cx.rem_size());
9953 let em_width = cx
9954 .text_system()
9955 .typographic_bounds(font_id, font_size, 'm')
9956 .unwrap()
9957 .size
9958 .width;
9959
9960 let snapshot = self.snapshot(cx);
9961 let scroll_position = snapshot.scroll_position();
9962 let scroll_left = scroll_position.x * em_width;
9963
9964 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
9965 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
9966 + self.gutter_width;
9967 let y = line_height * (start.row() as f32 - scroll_position.y);
9968
9969 Some(Bounds {
9970 origin: element_bounds.origin + point(x, y),
9971 size: size(em_width, line_height),
9972 })
9973 }
9974}
9975
9976trait SelectionExt {
9977 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
9978 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
9979 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
9980 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
9981 -> Range<u32>;
9982}
9983
9984impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
9985 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
9986 let start = self.start.to_point(buffer);
9987 let end = self.end.to_point(buffer);
9988 if self.reversed {
9989 end..start
9990 } else {
9991 start..end
9992 }
9993 }
9994
9995 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
9996 let start = self.start.to_offset(buffer);
9997 let end = self.end.to_offset(buffer);
9998 if self.reversed {
9999 end..start
10000 } else {
10001 start..end
10002 }
10003 }
10004
10005 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10006 let start = self
10007 .start
10008 .to_point(&map.buffer_snapshot)
10009 .to_display_point(map);
10010 let end = self
10011 .end
10012 .to_point(&map.buffer_snapshot)
10013 .to_display_point(map);
10014 if self.reversed {
10015 end..start
10016 } else {
10017 start..end
10018 }
10019 }
10020
10021 fn spanned_rows(
10022 &self,
10023 include_end_if_at_line_start: bool,
10024 map: &DisplaySnapshot,
10025 ) -> Range<u32> {
10026 let start = self.start.to_point(&map.buffer_snapshot);
10027 let mut end = self.end.to_point(&map.buffer_snapshot);
10028 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10029 end.row -= 1;
10030 }
10031
10032 let buffer_start = map.prev_line_boundary(start).0;
10033 let buffer_end = map.next_line_boundary(end).0;
10034 buffer_start.row..buffer_end.row + 1
10035 }
10036}
10037
10038impl<T: InvalidationRegion> InvalidationStack<T> {
10039 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10040 where
10041 S: Clone + ToOffset,
10042 {
10043 while let Some(region) = self.last() {
10044 let all_selections_inside_invalidation_ranges =
10045 if selections.len() == region.ranges().len() {
10046 selections
10047 .iter()
10048 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10049 .all(|(selection, invalidation_range)| {
10050 let head = selection.head().to_offset(buffer);
10051 invalidation_range.start <= head && invalidation_range.end >= head
10052 })
10053 } else {
10054 false
10055 };
10056
10057 if all_selections_inside_invalidation_ranges {
10058 break;
10059 } else {
10060 self.pop();
10061 }
10062 }
10063 }
10064}
10065
10066impl<T> Default for InvalidationStack<T> {
10067 fn default() -> Self {
10068 Self(Default::default())
10069 }
10070}
10071
10072impl<T> Deref for InvalidationStack<T> {
10073 type Target = Vec<T>;
10074
10075 fn deref(&self) -> &Self::Target {
10076 &self.0
10077 }
10078}
10079
10080impl<T> DerefMut for InvalidationStack<T> {
10081 fn deref_mut(&mut self) -> &mut Self::Target {
10082 &mut self.0
10083 }
10084}
10085
10086impl InvalidationRegion for SnippetState {
10087 fn ranges(&self) -> &[Range<Anchor>] {
10088 &self.ranges[self.active_index]
10089 }
10090}
10091
10092pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10093 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10094
10095 Arc::new(move |cx: &mut BlockContext| {
10096 let group_id: SharedString = cx.block_id.to_string().into();
10097
10098 let mut text_style = cx.text_style().clone();
10099 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10100
10101 h_flex()
10102 .id(cx.block_id)
10103 .group(group_id.clone())
10104 .relative()
10105 .size_full()
10106 .pl(cx.gutter_width)
10107 .w(cx.max_width + cx.gutter_width)
10108 .child(div().flex().w(cx.anchor_x - cx.gutter_width).flex_shrink())
10109 .child(div().flex().flex_shrink_0().child(
10110 StyledText::new(text_without_backticks.clone()).with_highlights(
10111 &text_style,
10112 code_ranges.iter().map(|range| {
10113 (
10114 range.clone(),
10115 HighlightStyle {
10116 font_weight: Some(FontWeight::BOLD),
10117 ..Default::default()
10118 },
10119 )
10120 }),
10121 ),
10122 ))
10123 .child(
10124 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
10125 .icon_color(Color::Muted)
10126 .size(ButtonSize::Compact)
10127 .style(ButtonStyle::Transparent)
10128 .visible_on_hover(group_id)
10129 .on_click({
10130 let message = diagnostic.message.clone();
10131 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10132 })
10133 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10134 )
10135 .into_any_element()
10136 })
10137}
10138
10139pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10140 let mut text_without_backticks = String::new();
10141 let mut code_ranges = Vec::new();
10142
10143 if let Some(source) = &diagnostic.source {
10144 text_without_backticks.push_str(&source);
10145 code_ranges.push(0..source.len());
10146 text_without_backticks.push_str(": ");
10147 }
10148
10149 let mut prev_offset = 0;
10150 let mut in_code_block = false;
10151 for (ix, _) in diagnostic
10152 .message
10153 .match_indices('`')
10154 .chain([(diagnostic.message.len(), "")])
10155 {
10156 let prev_len = text_without_backticks.len();
10157 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10158 prev_offset = ix + 1;
10159 if in_code_block {
10160 code_ranges.push(prev_len..text_without_backticks.len());
10161 in_code_block = false;
10162 } else {
10163 in_code_block = true;
10164 }
10165 }
10166
10167 (text_without_backticks.into(), code_ranges)
10168}
10169
10170fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10171 match (severity, valid) {
10172 (DiagnosticSeverity::ERROR, true) => colors.error,
10173 (DiagnosticSeverity::ERROR, false) => colors.error,
10174 (DiagnosticSeverity::WARNING, true) => colors.warning,
10175 (DiagnosticSeverity::WARNING, false) => colors.warning,
10176 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10177 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10178 (DiagnosticSeverity::HINT, true) => colors.info,
10179 (DiagnosticSeverity::HINT, false) => colors.info,
10180 _ => colors.ignored,
10181 }
10182}
10183
10184pub fn styled_runs_for_code_label<'a>(
10185 label: &'a CodeLabel,
10186 syntax_theme: &'a theme::SyntaxTheme,
10187) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10188 let fade_out = HighlightStyle {
10189 fade_out: Some(0.35),
10190 ..Default::default()
10191 };
10192
10193 let mut prev_end = label.filter_range.end;
10194 label
10195 .runs
10196 .iter()
10197 .enumerate()
10198 .flat_map(move |(ix, (range, highlight_id))| {
10199 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10200 style
10201 } else {
10202 return Default::default();
10203 };
10204 let mut muted_style = style;
10205 muted_style.highlight(fade_out);
10206
10207 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10208 if range.start >= label.filter_range.end {
10209 if range.start > prev_end {
10210 runs.push((prev_end..range.start, fade_out));
10211 }
10212 runs.push((range.clone(), muted_style));
10213 } else if range.end <= label.filter_range.end {
10214 runs.push((range.clone(), style));
10215 } else {
10216 runs.push((range.start..label.filter_range.end, style));
10217 runs.push((label.filter_range.end..range.end, muted_style));
10218 }
10219 prev_end = cmp::max(prev_end, range.end);
10220
10221 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10222 runs.push((prev_end..label.text.len(), fade_out));
10223 }
10224
10225 runs
10226 })
10227}
10228
10229pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
10230 let mut index = 0;
10231 let mut codepoints = text.char_indices().peekable();
10232
10233 std::iter::from_fn(move || {
10234 let start_index = index;
10235 while let Some((new_index, codepoint)) = codepoints.next() {
10236 index = new_index + codepoint.len_utf8();
10237 let current_upper = codepoint.is_uppercase();
10238 let next_upper = codepoints
10239 .peek()
10240 .map(|(_, c)| c.is_uppercase())
10241 .unwrap_or(false);
10242
10243 if !current_upper && next_upper {
10244 return Some(&text[start_index..index]);
10245 }
10246 }
10247
10248 index = text.len();
10249 if start_index < text.len() {
10250 return Some(&text[start_index..]);
10251 }
10252 None
10253 })
10254 .flat_map(|word| word.split_inclusive('_'))
10255 .flat_map(|word| word.split_inclusive('-'))
10256}
10257
10258trait RangeToAnchorExt {
10259 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10260}
10261
10262impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10263 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10264 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10265 }
10266}