1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behaviour.
15pub mod actions;
16mod blink_manager;
17pub mod display_map;
18mod editor_settings;
19mod element;
20mod inlay_hint_cache;
21
22mod debounced_delay;
23mod git;
24mod highlight_matching_bracket;
25mod hover_links;
26mod hover_popover;
27mod inline_completion_provider;
28pub mod items;
29mod mouse_context_menu;
30pub mod movement;
31mod persistence;
32mod rust_analyzer_ext;
33pub mod scroll;
34mod selections_collection;
35
36#[cfg(test)]
37mod editor_tests;
38#[cfg(any(test, feature = "test-support"))]
39pub mod test;
40use ::git::diff::{DiffHunk, DiffHunkStatus};
41use ::git::permalink::{build_permalink, BuildPermalinkParams};
42pub(crate) use actions::*;
43use aho_corasick::AhoCorasick;
44use anyhow::{anyhow, Context as _, Result};
45use blink_manager::BlinkManager;
46use client::{Collaborator, ParticipantIndex};
47use clock::ReplicaId;
48use collections::{hash_map, BTreeMap, Bound, HashMap, HashSet, VecDeque};
49use convert_case::{Case, Casing};
50use debounced_delay::DebouncedDelay;
51pub use display_map::DisplayPoint;
52use display_map::*;
53pub use editor_settings::EditorSettings;
54use element::LineWithInvisibles;
55pub use element::{
56 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
57};
58use futures::FutureExt;
59use fuzzy::{StringMatch, StringMatchCandidate};
60use git::blame::GitBlame;
61use git::diff_hunk_to_display;
62use gpui::{
63 div, impl_actions, point, prelude::*, px, relative, rems, size, uniform_list, Action,
64 AnyElement, AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds,
65 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView,
66 FontId, FontStyle, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model,
67 MouseButton, ParentElement, Pixels, Render, SharedString, StrikethroughStyle, Styled,
68 StyledText, Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View,
69 ViewContext, ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
70};
71use highlight_matching_bracket::refresh_matching_bracket_highlights;
72use hover_popover::{hide_hover, HoverState};
73use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
74pub use inline_completion_provider::*;
75pub use items::MAX_TAB_TITLE_LEN;
76use itertools::Itertools;
77use language::{char_kind, CharKind};
78use language::{
79 language_settings::{self, all_language_settings, InlayHintSettings},
80 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
81 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
82 Language, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
83};
84
85use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
86use lsp::{DiagnosticSeverity, LanguageServerId};
87use mouse_context_menu::MouseContextMenu;
88use movement::TextLayoutDetails;
89use multi_buffer::ToOffsetUtf16;
90pub use multi_buffer::{
91 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
92 ToPoint,
93};
94use ordered_float::OrderedFloat;
95use parking_lot::{Mutex, RwLock};
96use project::project_settings::{GitGutterSetting, ProjectSettings};
97use project::{FormatTrigger, Item, Location, Project, ProjectPath, ProjectTransaction};
98use rand::prelude::*;
99use rpc::proto::*;
100use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
101use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
102use serde::{Deserialize, Serialize};
103use settings::{Settings, SettingsStore};
104use smallvec::SmallVec;
105use snippet::Snippet;
106use std::ops::Not as _;
107use std::{
108 any::TypeId,
109 borrow::Cow,
110 cmp::{self, Ordering, Reverse},
111 mem,
112 num::NonZeroU32,
113 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
114 path::Path,
115 sync::Arc,
116 time::{Duration, Instant},
117};
118pub use sum_tree::Bias;
119use text::{BufferId, OffsetUtf16, Rope};
120use theme::{
121 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
122 ThemeColors, ThemeSettings,
123};
124use ui::{
125 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
126 Tooltip,
127};
128use util::{maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
129use workspace::Toast;
130use workspace::{
131 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
132};
133
134use crate::hover_links::find_url;
135
136const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
137const MAX_LINE_LEN: usize = 1024;
138const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
139const MAX_SELECTION_HISTORY_LEN: usize = 1024;
140pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
141#[doc(hidden)]
142pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
143#[doc(hidden)]
144pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
145
146pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
147
148pub fn render_parsed_markdown(
149 element_id: impl Into<ElementId>,
150 parsed: &language::ParsedMarkdown,
151 editor_style: &EditorStyle,
152 workspace: Option<WeakView<Workspace>>,
153 cx: &mut ViewContext<Editor>,
154) -> InteractiveText {
155 let code_span_background_color = cx
156 .theme()
157 .colors()
158 .editor_document_highlight_read_background;
159
160 let highlights = gpui::combine_highlights(
161 parsed.highlights.iter().filter_map(|(range, highlight)| {
162 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
163 Some((range.clone(), highlight))
164 }),
165 parsed
166 .regions
167 .iter()
168 .zip(&parsed.region_ranges)
169 .filter_map(|(region, range)| {
170 if region.code {
171 Some((
172 range.clone(),
173 HighlightStyle {
174 background_color: Some(code_span_background_color),
175 ..Default::default()
176 },
177 ))
178 } else {
179 None
180 }
181 }),
182 );
183
184 let mut links = Vec::new();
185 let mut link_ranges = Vec::new();
186 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
187 if let Some(link) = region.link.clone() {
188 links.push(link);
189 link_ranges.push(range.clone());
190 }
191 }
192
193 InteractiveText::new(
194 element_id,
195 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
196 )
197 .on_click(link_ranges, move |clicked_range_ix, cx| {
198 match &links[clicked_range_ix] {
199 markdown::Link::Web { url } => cx.open_url(url),
200 markdown::Link::Path { path } => {
201 if let Some(workspace) = &workspace {
202 _ = workspace.update(cx, |workspace, cx| {
203 workspace.open_abs_path(path.clone(), false, cx).detach();
204 });
205 }
206 }
207 }
208 })
209}
210
211#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
212pub(crate) enum InlayId {
213 Suggestion(usize),
214 Hint(usize),
215}
216
217impl InlayId {
218 fn id(&self) -> usize {
219 match self {
220 Self::Suggestion(id) => *id,
221 Self::Hint(id) => *id,
222 }
223 }
224}
225
226enum DocumentHighlightRead {}
227enum DocumentHighlightWrite {}
228enum InputComposition {}
229
230#[derive(Copy, Clone, PartialEq, Eq)]
231pub enum Direction {
232 Prev,
233 Next,
234}
235
236pub fn init_settings(cx: &mut AppContext) {
237 EditorSettings::register(cx);
238}
239
240pub fn init(cx: &mut AppContext) {
241 init_settings(cx);
242
243 workspace::register_project_item::<Editor>(cx);
244 workspace::register_followable_item::<Editor>(cx);
245 workspace::register_deserializable_item::<Editor>(cx);
246 cx.observe_new_views(
247 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
248 workspace.register_action(Editor::new_file);
249 workspace.register_action(Editor::new_file_in_direction);
250 },
251 )
252 .detach();
253
254 cx.on_action(move |_: &workspace::NewFile, cx| {
255 let app_state = workspace::AppState::global(cx);
256 if let Some(app_state) = app_state.upgrade() {
257 workspace::open_new(app_state, cx, |workspace, cx| {
258 Editor::new_file(workspace, &Default::default(), cx)
259 })
260 .detach();
261 }
262 });
263 cx.on_action(move |_: &workspace::NewWindow, cx| {
264 let app_state = workspace::AppState::global(cx);
265 if let Some(app_state) = app_state.upgrade() {
266 workspace::open_new(app_state, cx, |workspace, cx| {
267 Editor::new_file(workspace, &Default::default(), cx)
268 })
269 .detach();
270 }
271 });
272}
273
274trait InvalidationRegion {
275 fn ranges(&self) -> &[Range<Anchor>];
276}
277
278#[derive(Clone, Debug, PartialEq)]
279pub enum SelectPhase {
280 Begin {
281 position: DisplayPoint,
282 add: bool,
283 click_count: usize,
284 },
285 BeginColumnar {
286 position: DisplayPoint,
287 goal_column: u32,
288 },
289 Extend {
290 position: DisplayPoint,
291 click_count: usize,
292 },
293 Update {
294 position: DisplayPoint,
295 goal_column: u32,
296 scroll_delta: gpui::Point<f32>,
297 },
298 End,
299}
300
301#[derive(Clone, Debug)]
302pub enum SelectMode {
303 Character,
304 Word(Range<Anchor>),
305 Line(Range<Anchor>),
306 All,
307}
308
309#[derive(Copy, Clone, PartialEq, Eq, Debug)]
310pub enum EditorMode {
311 SingleLine,
312 AutoHeight { max_lines: usize },
313 Full,
314}
315
316#[derive(Clone, Debug)]
317pub enum SoftWrap {
318 None,
319 EditorWidth,
320 Column(u32),
321}
322
323#[derive(Clone)]
324pub struct EditorStyle {
325 pub background: Hsla,
326 pub local_player: PlayerColor,
327 pub text: TextStyle,
328 pub scrollbar_width: Pixels,
329 pub syntax: Arc<SyntaxTheme>,
330 pub status: StatusColors,
331 pub inlay_hints_style: HighlightStyle,
332 pub suggestions_style: HighlightStyle,
333}
334
335impl Default for EditorStyle {
336 fn default() -> Self {
337 Self {
338 background: Hsla::default(),
339 local_player: PlayerColor::default(),
340 text: TextStyle::default(),
341 scrollbar_width: Pixels::default(),
342 syntax: Default::default(),
343 // HACK: Status colors don't have a real default.
344 // We should look into removing the status colors from the editor
345 // style and retrieve them directly from the theme.
346 status: StatusColors::dark(),
347 inlay_hints_style: HighlightStyle::default(),
348 suggestions_style: HighlightStyle::default(),
349 }
350 }
351}
352
353type CompletionId = usize;
354
355// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
356// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
357
358type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
359
360/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
361///
362/// See the [module level documentation](self) for more information.
363pub struct Editor {
364 focus_handle: FocusHandle,
365 /// The text buffer being edited
366 buffer: Model<MultiBuffer>,
367 /// Map of how text in the buffer should be displayed.
368 /// Handles soft wraps, folds, fake inlay text insertions, etc.
369 pub display_map: Model<DisplayMap>,
370 pub selections: SelectionsCollection,
371 pub scroll_manager: ScrollManager,
372 columnar_selection_tail: Option<Anchor>,
373 add_selections_state: Option<AddSelectionsState>,
374 select_next_state: Option<SelectNextState>,
375 select_prev_state: Option<SelectNextState>,
376 selection_history: SelectionHistory,
377 autoclose_regions: Vec<AutocloseRegion>,
378 snippet_stack: InvalidationStack<SnippetState>,
379 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
380 ime_transaction: Option<TransactionId>,
381 active_diagnostics: Option<ActiveDiagnosticGroup>,
382 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
383 project: Option<Model<Project>>,
384 completion_provider: Option<Box<dyn CompletionProvider>>,
385 collaboration_hub: Option<Box<dyn CollaborationHub>>,
386 blink_manager: Model<BlinkManager>,
387 show_cursor_names: bool,
388 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
389 pub show_local_selections: bool,
390 mode: EditorMode,
391 show_breadcrumbs: bool,
392 show_gutter: bool,
393 show_wrap_guides: Option<bool>,
394 placeholder_text: Option<Arc<str>>,
395 highlight_order: usize,
396 highlighted_rows: HashMap<TypeId, Vec<(usize, Range<Anchor>, Hsla)>>,
397 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
398 nav_history: Option<ItemNavHistory>,
399 context_menu: RwLock<Option<ContextMenu>>,
400 mouse_context_menu: Option<MouseContextMenu>,
401 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
402 find_all_references_task_sources: Vec<Anchor>,
403 next_completion_id: CompletionId,
404 completion_documentation_pre_resolve_debounce: DebouncedDelay,
405 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
406 code_actions_task: Option<Task<()>>,
407 document_highlights_task: Option<Task<()>>,
408 pending_rename: Option<RenameState>,
409 searchable: bool,
410 cursor_shape: CursorShape,
411 collapse_matches: bool,
412 autoindent_mode: Option<AutoindentMode>,
413 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
414 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
415 input_enabled: bool,
416 use_modal_editing: bool,
417 read_only: bool,
418 leader_peer_id: Option<PeerId>,
419 remote_id: Option<ViewId>,
420 hover_state: HoverState,
421 gutter_hovered: bool,
422 hovered_link_state: Option<HoveredLinkState>,
423 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
424 active_inline_completion: Option<Inlay>,
425 show_inline_completions: bool,
426 inlay_hint_cache: InlayHintCache,
427 next_inlay_id: usize,
428 _subscriptions: Vec<Subscription>,
429 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
430 gutter_width: Pixels,
431 pub vim_replace_map: HashMap<Range<usize>, String>,
432 style: Option<EditorStyle>,
433 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
434 use_autoclose: bool,
435 auto_replace_emoji_shortcode: bool,
436 show_git_blame: bool,
437 blame: Option<Model<GitBlame>>,
438 blame_subscription: Option<Subscription>,
439 custom_context_menu: Option<
440 Box<
441 dyn 'static
442 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
443 >,
444 >,
445}
446
447pub struct EditorSnapshot {
448 pub mode: EditorMode,
449 show_gutter: bool,
450 show_git_blame: bool,
451 pub display_snapshot: DisplaySnapshot,
452 pub placeholder_text: Option<Arc<str>>,
453 is_focused: bool,
454 scroll_anchor: ScrollAnchor,
455 ongoing_scroll: OngoingScroll,
456}
457
458const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
459
460pub struct GutterDimensions {
461 pub left_padding: Pixels,
462 pub right_padding: Pixels,
463 pub width: Pixels,
464 pub margin: Pixels,
465 pub git_blame_entries_width: Option<Pixels>,
466}
467
468impl Default for GutterDimensions {
469 fn default() -> Self {
470 Self {
471 left_padding: Pixels::ZERO,
472 right_padding: Pixels::ZERO,
473 width: Pixels::ZERO,
474 margin: Pixels::ZERO,
475 git_blame_entries_width: None,
476 }
477 }
478}
479
480#[derive(Debug)]
481pub struct RemoteSelection {
482 pub replica_id: ReplicaId,
483 pub selection: Selection<Anchor>,
484 pub cursor_shape: CursorShape,
485 pub peer_id: PeerId,
486 pub line_mode: bool,
487 pub participant_index: Option<ParticipantIndex>,
488 pub user_name: Option<SharedString>,
489}
490
491#[derive(Clone, Debug)]
492struct SelectionHistoryEntry {
493 selections: Arc<[Selection<Anchor>]>,
494 select_next_state: Option<SelectNextState>,
495 select_prev_state: Option<SelectNextState>,
496 add_selections_state: Option<AddSelectionsState>,
497}
498
499enum SelectionHistoryMode {
500 Normal,
501 Undoing,
502 Redoing,
503}
504
505#[derive(Clone, PartialEq, Eq, Hash)]
506struct HoveredCursor {
507 replica_id: u16,
508 selection_id: usize,
509}
510
511impl Default for SelectionHistoryMode {
512 fn default() -> Self {
513 Self::Normal
514 }
515}
516
517#[derive(Default)]
518struct SelectionHistory {
519 #[allow(clippy::type_complexity)]
520 selections_by_transaction:
521 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
522 mode: SelectionHistoryMode,
523 undo_stack: VecDeque<SelectionHistoryEntry>,
524 redo_stack: VecDeque<SelectionHistoryEntry>,
525}
526
527impl SelectionHistory {
528 fn insert_transaction(
529 &mut self,
530 transaction_id: TransactionId,
531 selections: Arc<[Selection<Anchor>]>,
532 ) {
533 self.selections_by_transaction
534 .insert(transaction_id, (selections, None));
535 }
536
537 #[allow(clippy::type_complexity)]
538 fn transaction(
539 &self,
540 transaction_id: TransactionId,
541 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
542 self.selections_by_transaction.get(&transaction_id)
543 }
544
545 #[allow(clippy::type_complexity)]
546 fn transaction_mut(
547 &mut self,
548 transaction_id: TransactionId,
549 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
550 self.selections_by_transaction.get_mut(&transaction_id)
551 }
552
553 fn push(&mut self, entry: SelectionHistoryEntry) {
554 if !entry.selections.is_empty() {
555 match self.mode {
556 SelectionHistoryMode::Normal => {
557 self.push_undo(entry);
558 self.redo_stack.clear();
559 }
560 SelectionHistoryMode::Undoing => self.push_redo(entry),
561 SelectionHistoryMode::Redoing => self.push_undo(entry),
562 }
563 }
564 }
565
566 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
567 if self
568 .undo_stack
569 .back()
570 .map_or(true, |e| e.selections != entry.selections)
571 {
572 self.undo_stack.push_back(entry);
573 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
574 self.undo_stack.pop_front();
575 }
576 }
577 }
578
579 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
580 if self
581 .redo_stack
582 .back()
583 .map_or(true, |e| e.selections != entry.selections)
584 {
585 self.redo_stack.push_back(entry);
586 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
587 self.redo_stack.pop_front();
588 }
589 }
590 }
591}
592
593#[derive(Clone, Debug)]
594struct AddSelectionsState {
595 above: bool,
596 stack: Vec<usize>,
597}
598
599#[derive(Clone)]
600struct SelectNextState {
601 query: AhoCorasick,
602 wordwise: bool,
603 done: bool,
604}
605
606impl std::fmt::Debug for SelectNextState {
607 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
608 f.debug_struct(std::any::type_name::<Self>())
609 .field("wordwise", &self.wordwise)
610 .field("done", &self.done)
611 .finish()
612 }
613}
614
615#[derive(Debug)]
616struct AutocloseRegion {
617 selection_id: usize,
618 range: Range<Anchor>,
619 pair: BracketPair,
620}
621
622#[derive(Debug)]
623struct SnippetState {
624 ranges: Vec<Vec<Range<Anchor>>>,
625 active_index: usize,
626}
627
628#[doc(hidden)]
629pub struct RenameState {
630 pub range: Range<Anchor>,
631 pub old_name: Arc<str>,
632 pub editor: View<Editor>,
633 block_id: BlockId,
634}
635
636struct InvalidationStack<T>(Vec<T>);
637
638struct RegisteredInlineCompletionProvider {
639 provider: Arc<dyn InlineCompletionProviderHandle>,
640 _subscription: Subscription,
641}
642
643enum ContextMenu {
644 Completions(CompletionsMenu),
645 CodeActions(CodeActionsMenu),
646}
647
648impl ContextMenu {
649 fn select_first(
650 &mut self,
651 project: Option<&Model<Project>>,
652 cx: &mut ViewContext<Editor>,
653 ) -> bool {
654 if self.visible() {
655 match self {
656 ContextMenu::Completions(menu) => menu.select_first(project, cx),
657 ContextMenu::CodeActions(menu) => menu.select_first(cx),
658 }
659 true
660 } else {
661 false
662 }
663 }
664
665 fn select_prev(
666 &mut self,
667 project: Option<&Model<Project>>,
668 cx: &mut ViewContext<Editor>,
669 ) -> bool {
670 if self.visible() {
671 match self {
672 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
673 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
674 }
675 true
676 } else {
677 false
678 }
679 }
680
681 fn select_next(
682 &mut self,
683 project: Option<&Model<Project>>,
684 cx: &mut ViewContext<Editor>,
685 ) -> bool {
686 if self.visible() {
687 match self {
688 ContextMenu::Completions(menu) => menu.select_next(project, cx),
689 ContextMenu::CodeActions(menu) => menu.select_next(cx),
690 }
691 true
692 } else {
693 false
694 }
695 }
696
697 fn select_last(
698 &mut self,
699 project: Option<&Model<Project>>,
700 cx: &mut ViewContext<Editor>,
701 ) -> bool {
702 if self.visible() {
703 match self {
704 ContextMenu::Completions(menu) => menu.select_last(project, cx),
705 ContextMenu::CodeActions(menu) => menu.select_last(cx),
706 }
707 true
708 } else {
709 false
710 }
711 }
712
713 fn visible(&self) -> bool {
714 match self {
715 ContextMenu::Completions(menu) => menu.visible(),
716 ContextMenu::CodeActions(menu) => menu.visible(),
717 }
718 }
719
720 fn render(
721 &self,
722 cursor_position: DisplayPoint,
723 style: &EditorStyle,
724 max_height: Pixels,
725 workspace: Option<WeakView<Workspace>>,
726 cx: &mut ViewContext<Editor>,
727 ) -> (DisplayPoint, AnyElement) {
728 match self {
729 ContextMenu::Completions(menu) => (
730 cursor_position,
731 menu.render(style, max_height, workspace, cx),
732 ),
733 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
734 }
735 }
736}
737
738#[derive(Clone)]
739struct CompletionsMenu {
740 id: CompletionId,
741 initial_position: Anchor,
742 buffer: Model<Buffer>,
743 completions: Arc<RwLock<Box<[Completion]>>>,
744 match_candidates: Arc<[StringMatchCandidate]>,
745 matches: Arc<[StringMatch]>,
746 selected_item: usize,
747 scroll_handle: UniformListScrollHandle,
748 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
749}
750
751impl CompletionsMenu {
752 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
753 self.selected_item = 0;
754 self.scroll_handle.scroll_to_item(self.selected_item);
755 self.attempt_resolve_selected_completion_documentation(project, cx);
756 cx.notify();
757 }
758
759 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
760 if self.selected_item > 0 {
761 self.selected_item -= 1;
762 } else {
763 self.selected_item = self.matches.len() - 1;
764 }
765 self.scroll_handle.scroll_to_item(self.selected_item);
766 self.attempt_resolve_selected_completion_documentation(project, cx);
767 cx.notify();
768 }
769
770 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
771 if self.selected_item + 1 < self.matches.len() {
772 self.selected_item += 1;
773 } else {
774 self.selected_item = 0;
775 }
776 self.scroll_handle.scroll_to_item(self.selected_item);
777 self.attempt_resolve_selected_completion_documentation(project, cx);
778 cx.notify();
779 }
780
781 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
782 self.selected_item = self.matches.len() - 1;
783 self.scroll_handle.scroll_to_item(self.selected_item);
784 self.attempt_resolve_selected_completion_documentation(project, cx);
785 cx.notify();
786 }
787
788 fn pre_resolve_completion_documentation(
789 completions: Arc<RwLock<Box<[Completion]>>>,
790 matches: Arc<[StringMatch]>,
791 editor: &Editor,
792 cx: &mut ViewContext<Editor>,
793 ) -> Task<()> {
794 let settings = EditorSettings::get_global(cx);
795 if !settings.show_completion_documentation {
796 return Task::ready(());
797 }
798
799 let Some(provider) = editor.completion_provider.as_ref() else {
800 return Task::ready(());
801 };
802
803 let resolve_task = provider.resolve_completions(
804 matches.iter().map(|m| m.candidate_id).collect(),
805 completions.clone(),
806 cx,
807 );
808
809 return cx.spawn(move |this, mut cx| async move {
810 if let Some(true) = resolve_task.await.log_err() {
811 this.update(&mut cx, |_, cx| cx.notify()).ok();
812 }
813 });
814 }
815
816 fn attempt_resolve_selected_completion_documentation(
817 &mut self,
818 project: Option<&Model<Project>>,
819 cx: &mut ViewContext<Editor>,
820 ) {
821 let settings = EditorSettings::get_global(cx);
822 if !settings.show_completion_documentation {
823 return;
824 }
825
826 let completion_index = self.matches[self.selected_item].candidate_id;
827 let Some(project) = project else {
828 return;
829 };
830
831 let resolve_task = project.update(cx, |project, cx| {
832 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
833 });
834
835 let delay_ms =
836 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
837 let delay = Duration::from_millis(delay_ms);
838
839 self.selected_completion_documentation_resolve_debounce
840 .lock()
841 .fire_new(delay, cx, |_, cx| {
842 cx.spawn(move |this, mut cx| async move {
843 if let Some(true) = resolve_task.await.log_err() {
844 this.update(&mut cx, |_, cx| cx.notify()).ok();
845 }
846 })
847 });
848 }
849
850 fn visible(&self) -> bool {
851 !self.matches.is_empty()
852 }
853
854 fn render(
855 &self,
856 style: &EditorStyle,
857 max_height: Pixels,
858 workspace: Option<WeakView<Workspace>>,
859 cx: &mut ViewContext<Editor>,
860 ) -> AnyElement {
861 let settings = EditorSettings::get_global(cx);
862 let show_completion_documentation = settings.show_completion_documentation;
863
864 let widest_completion_ix = self
865 .matches
866 .iter()
867 .enumerate()
868 .max_by_key(|(_, mat)| {
869 let completions = self.completions.read();
870 let completion = &completions[mat.candidate_id];
871 let documentation = &completion.documentation;
872
873 let mut len = completion.label.text.chars().count();
874 if let Some(Documentation::SingleLine(text)) = documentation {
875 if show_completion_documentation {
876 len += text.chars().count();
877 }
878 }
879
880 len
881 })
882 .map(|(ix, _)| ix);
883
884 let completions = self.completions.clone();
885 let matches = self.matches.clone();
886 let selected_item = self.selected_item;
887 let style = style.clone();
888
889 let multiline_docs = if show_completion_documentation {
890 let mat = &self.matches[selected_item];
891 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
892 Some(Documentation::MultiLinePlainText(text)) => {
893 Some(div().child(SharedString::from(text.clone())))
894 }
895 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
896 Some(div().child(render_parsed_markdown(
897 "completions_markdown",
898 parsed,
899 &style,
900 workspace,
901 cx,
902 )))
903 }
904 _ => None,
905 };
906 multiline_docs.map(|div| {
907 div.id("multiline_docs")
908 .max_h(max_height)
909 .flex_1()
910 .px_1p5()
911 .py_1()
912 .min_w(px(260.))
913 .max_w(px(640.))
914 .w(px(500.))
915 .overflow_y_scroll()
916 .occlude()
917 })
918 } else {
919 None
920 };
921
922 let list = uniform_list(
923 cx.view().clone(),
924 "completions",
925 matches.len(),
926 move |_editor, range, cx| {
927 let start_ix = range.start;
928 let completions_guard = completions.read();
929
930 matches[range]
931 .iter()
932 .enumerate()
933 .map(|(ix, mat)| {
934 let item_ix = start_ix + ix;
935 let candidate_id = mat.candidate_id;
936 let completion = &completions_guard[candidate_id];
937
938 let documentation = if show_completion_documentation {
939 &completion.documentation
940 } else {
941 &None
942 };
943
944 let highlights = gpui::combine_highlights(
945 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
946 styled_runs_for_code_label(&completion.label, &style.syntax).map(
947 |(range, mut highlight)| {
948 // Ignore font weight for syntax highlighting, as we'll use it
949 // for fuzzy matches.
950 highlight.font_weight = None;
951
952 if completion.lsp_completion.deprecated.unwrap_or(false) {
953 highlight.strikethrough = Some(StrikethroughStyle {
954 thickness: 1.0.into(),
955 ..Default::default()
956 });
957 highlight.color = Some(cx.theme().colors().text_muted);
958 }
959
960 (range, highlight)
961 },
962 ),
963 );
964 let completion_label = StyledText::new(completion.label.text.clone())
965 .with_highlights(&style.text, highlights);
966 let documentation_label =
967 if let Some(Documentation::SingleLine(text)) = documentation {
968 if text.trim().is_empty() {
969 None
970 } else {
971 Some(
972 h_flex().ml_4().child(
973 Label::new(text.clone())
974 .size(LabelSize::Small)
975 .color(Color::Muted),
976 ),
977 )
978 }
979 } else {
980 None
981 };
982
983 div().min_w(px(220.)).max_w(px(540.)).child(
984 ListItem::new(mat.candidate_id)
985 .inset(true)
986 .selected(item_ix == selected_item)
987 .on_click(cx.listener(move |editor, _event, cx| {
988 cx.stop_propagation();
989 if let Some(task) = editor.confirm_completion(
990 &ConfirmCompletion {
991 item_ix: Some(item_ix),
992 },
993 cx,
994 ) {
995 task.detach_and_log_err(cx)
996 }
997 }))
998 .child(h_flex().overflow_hidden().child(completion_label))
999 .end_slot::<Div>(documentation_label),
1000 )
1001 })
1002 .collect()
1003 },
1004 )
1005 .occlude()
1006 .max_h(max_height)
1007 .track_scroll(self.scroll_handle.clone())
1008 .with_width_from_item(widest_completion_ix);
1009
1010 Popover::new()
1011 .child(list)
1012 .when_some(multiline_docs, |popover, multiline_docs| {
1013 popover.aside(multiline_docs)
1014 })
1015 .into_any_element()
1016 }
1017
1018 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1019 let mut matches = if let Some(query) = query {
1020 fuzzy::match_strings(
1021 &self.match_candidates,
1022 query,
1023 query.chars().any(|c| c.is_uppercase()),
1024 100,
1025 &Default::default(),
1026 executor,
1027 )
1028 .await
1029 } else {
1030 self.match_candidates
1031 .iter()
1032 .enumerate()
1033 .map(|(candidate_id, candidate)| StringMatch {
1034 candidate_id,
1035 score: Default::default(),
1036 positions: Default::default(),
1037 string: candidate.string.clone(),
1038 })
1039 .collect()
1040 };
1041
1042 // Remove all candidates where the query's start does not match the start of any word in the candidate
1043 if let Some(query) = query {
1044 if let Some(query_start) = query.chars().next() {
1045 matches.retain(|string_match| {
1046 split_words(&string_match.string).any(|word| {
1047 // Check that the first codepoint of the word as lowercase matches the first
1048 // codepoint of the query as lowercase
1049 word.chars()
1050 .flat_map(|codepoint| codepoint.to_lowercase())
1051 .zip(query_start.to_lowercase())
1052 .all(|(word_cp, query_cp)| word_cp == query_cp)
1053 })
1054 });
1055 }
1056 }
1057
1058 let completions = self.completions.read();
1059 matches.sort_unstable_by_key(|mat| {
1060 // We do want to strike a balance here between what the language server tells us
1061 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1062 // `Creat` and there is a local variable called `CreateComponent`).
1063 // So what we do is: we bucket all matches into two buckets
1064 // - Strong matches
1065 // - Weak matches
1066 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1067 // and the Weak matches are the rest.
1068 //
1069 // For the strong matches, we sort by the language-servers score first and for the weak
1070 // matches, we prefer our fuzzy finder first.
1071 //
1072 // The thinking behind that: it's useless to take the sort_text the language-server gives
1073 // us into account when it's obviously a bad match.
1074
1075 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1076 enum MatchScore<'a> {
1077 Strong {
1078 sort_text: Option<&'a str>,
1079 score: Reverse<OrderedFloat<f64>>,
1080 sort_key: (usize, &'a str),
1081 },
1082 Weak {
1083 score: Reverse<OrderedFloat<f64>>,
1084 sort_text: Option<&'a str>,
1085 sort_key: (usize, &'a str),
1086 },
1087 }
1088
1089 let completion = &completions[mat.candidate_id];
1090 let sort_key = completion.sort_key();
1091 let sort_text = completion.lsp_completion.sort_text.as_deref();
1092 let score = Reverse(OrderedFloat(mat.score));
1093
1094 if mat.score >= 0.2 {
1095 MatchScore::Strong {
1096 sort_text,
1097 score,
1098 sort_key,
1099 }
1100 } else {
1101 MatchScore::Weak {
1102 score,
1103 sort_text,
1104 sort_key,
1105 }
1106 }
1107 });
1108
1109 for mat in &mut matches {
1110 let completion = &completions[mat.candidate_id];
1111 mat.string = completion.label.text.clone();
1112 for position in &mut mat.positions {
1113 *position += completion.label.filter_range.start;
1114 }
1115 }
1116 drop(completions);
1117
1118 self.matches = matches.into();
1119 self.selected_item = 0;
1120 }
1121}
1122
1123#[derive(Clone)]
1124struct CodeActionsMenu {
1125 actions: Arc<[CodeAction]>,
1126 buffer: Model<Buffer>,
1127 selected_item: usize,
1128 scroll_handle: UniformListScrollHandle,
1129 deployed_from_indicator: bool,
1130}
1131
1132impl CodeActionsMenu {
1133 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1134 self.selected_item = 0;
1135 self.scroll_handle.scroll_to_item(self.selected_item);
1136 cx.notify()
1137 }
1138
1139 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1140 if self.selected_item > 0 {
1141 self.selected_item -= 1;
1142 } else {
1143 self.selected_item = self.actions.len() - 1;
1144 }
1145 self.scroll_handle.scroll_to_item(self.selected_item);
1146 cx.notify();
1147 }
1148
1149 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1150 if self.selected_item + 1 < self.actions.len() {
1151 self.selected_item += 1;
1152 } else {
1153 self.selected_item = 0;
1154 }
1155 self.scroll_handle.scroll_to_item(self.selected_item);
1156 cx.notify();
1157 }
1158
1159 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1160 self.selected_item = self.actions.len() - 1;
1161 self.scroll_handle.scroll_to_item(self.selected_item);
1162 cx.notify()
1163 }
1164
1165 fn visible(&self) -> bool {
1166 !self.actions.is_empty()
1167 }
1168
1169 fn render(
1170 &self,
1171 mut cursor_position: DisplayPoint,
1172 _style: &EditorStyle,
1173 max_height: Pixels,
1174 cx: &mut ViewContext<Editor>,
1175 ) -> (DisplayPoint, AnyElement) {
1176 let actions = self.actions.clone();
1177 let selected_item = self.selected_item;
1178
1179 let element = uniform_list(
1180 cx.view().clone(),
1181 "code_actions_menu",
1182 self.actions.len(),
1183 move |_this, range, cx| {
1184 actions[range.clone()]
1185 .iter()
1186 .enumerate()
1187 .map(|(ix, action)| {
1188 let item_ix = range.start + ix;
1189 let selected = selected_item == item_ix;
1190 let colors = cx.theme().colors();
1191 div()
1192 .px_2()
1193 .text_color(colors.text)
1194 .when(selected, |style| {
1195 style
1196 .bg(colors.element_active)
1197 .text_color(colors.text_accent)
1198 })
1199 .hover(|style| {
1200 style
1201 .bg(colors.element_hover)
1202 .text_color(colors.text_accent)
1203 })
1204 .on_mouse_down(
1205 MouseButton::Left,
1206 cx.listener(move |editor, _, cx| {
1207 cx.stop_propagation();
1208 if let Some(task) = editor.confirm_code_action(
1209 &ConfirmCodeAction {
1210 item_ix: Some(item_ix),
1211 },
1212 cx,
1213 ) {
1214 task.detach_and_log_err(cx)
1215 }
1216 }),
1217 )
1218 .whitespace_nowrap()
1219 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1220 .child(SharedString::from(action.lsp_action.title.clone()))
1221 })
1222 .collect()
1223 },
1224 )
1225 .elevation_1(cx)
1226 .px_2()
1227 .py_1()
1228 .max_h(max_height)
1229 .occlude()
1230 .track_scroll(self.scroll_handle.clone())
1231 .with_width_from_item(
1232 self.actions
1233 .iter()
1234 .enumerate()
1235 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1236 .map(|(ix, _)| ix),
1237 )
1238 .into_any_element();
1239
1240 if self.deployed_from_indicator {
1241 *cursor_position.column_mut() = 0;
1242 }
1243
1244 (cursor_position, element)
1245 }
1246}
1247
1248#[derive(Debug)]
1249struct ActiveDiagnosticGroup {
1250 primary_range: Range<Anchor>,
1251 primary_message: String,
1252 blocks: HashMap<BlockId, Diagnostic>,
1253 is_valid: bool,
1254}
1255
1256#[derive(Serialize, Deserialize)]
1257pub struct ClipboardSelection {
1258 pub len: usize,
1259 pub is_entire_line: bool,
1260 pub first_line_indent: u32,
1261}
1262
1263#[derive(Debug)]
1264pub(crate) struct NavigationData {
1265 cursor_anchor: Anchor,
1266 cursor_position: Point,
1267 scroll_anchor: ScrollAnchor,
1268 scroll_top_row: u32,
1269}
1270
1271enum GotoDefinitionKind {
1272 Symbol,
1273 Type,
1274 Implementation,
1275}
1276
1277#[derive(Debug, Clone)]
1278enum InlayHintRefreshReason {
1279 Toggle(bool),
1280 SettingsChange(InlayHintSettings),
1281 NewLinesShown,
1282 BufferEdited(HashSet<Arc<Language>>),
1283 RefreshRequested,
1284 ExcerptsRemoved(Vec<ExcerptId>),
1285}
1286
1287impl InlayHintRefreshReason {
1288 fn description(&self) -> &'static str {
1289 match self {
1290 Self::Toggle(_) => "toggle",
1291 Self::SettingsChange(_) => "settings change",
1292 Self::NewLinesShown => "new lines shown",
1293 Self::BufferEdited(_) => "buffer edited",
1294 Self::RefreshRequested => "refresh requested",
1295 Self::ExcerptsRemoved(_) => "excerpts removed",
1296 }
1297 }
1298}
1299
1300impl Editor {
1301 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1302 let buffer = cx.new_model(|cx| {
1303 Buffer::new(
1304 0,
1305 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1306 String::new(),
1307 )
1308 });
1309 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1310 Self::new(EditorMode::SingleLine, buffer, None, cx)
1311 }
1312
1313 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1314 let buffer = cx.new_model(|cx| {
1315 Buffer::new(
1316 0,
1317 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1318 String::new(),
1319 )
1320 });
1321 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1322 Self::new(EditorMode::Full, buffer, None, cx)
1323 }
1324
1325 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1326 let buffer = cx.new_model(|cx| {
1327 Buffer::new(
1328 0,
1329 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1330 String::new(),
1331 )
1332 });
1333 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1334 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1335 }
1336
1337 pub fn for_buffer(
1338 buffer: Model<Buffer>,
1339 project: Option<Model<Project>>,
1340 cx: &mut ViewContext<Self>,
1341 ) -> Self {
1342 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1343 Self::new(EditorMode::Full, buffer, project, cx)
1344 }
1345
1346 pub fn for_multibuffer(
1347 buffer: Model<MultiBuffer>,
1348 project: Option<Model<Project>>,
1349 cx: &mut ViewContext<Self>,
1350 ) -> Self {
1351 Self::new(EditorMode::Full, buffer, project, cx)
1352 }
1353
1354 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1355 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1356 self.display_map.update(cx, |display_map, cx| {
1357 let snapshot = display_map.snapshot(cx);
1358 clone.display_map.update(cx, |display_map, cx| {
1359 display_map.set_state(&snapshot, cx);
1360 });
1361 });
1362 clone.selections.clone_state(&self.selections);
1363 clone.scroll_manager.clone_state(&self.scroll_manager);
1364 clone.searchable = self.searchable;
1365 clone
1366 }
1367
1368 fn new(
1369 mode: EditorMode,
1370 buffer: Model<MultiBuffer>,
1371 project: Option<Model<Project>>,
1372 cx: &mut ViewContext<Self>,
1373 ) -> Self {
1374 let style = cx.text_style();
1375 let font_size = style.font_size.to_pixels(cx.rem_size());
1376 let display_map = cx.new_model(|cx| {
1377 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1378 });
1379
1380 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1381
1382 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1383
1384 let soft_wrap_mode_override =
1385 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1386
1387 let mut project_subscriptions = Vec::new();
1388 if mode == EditorMode::Full {
1389 if let Some(project) = project.as_ref() {
1390 if buffer.read(cx).is_singleton() {
1391 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1392 cx.emit(EditorEvent::TitleChanged);
1393 }));
1394 }
1395 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1396 if let project::Event::RefreshInlayHints = event {
1397 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1398 };
1399 }));
1400 }
1401 }
1402
1403 let inlay_hint_settings = inlay_hint_settings(
1404 selections.newest_anchor().head(),
1405 &buffer.read(cx).snapshot(cx),
1406 cx,
1407 );
1408
1409 let focus_handle = cx.focus_handle();
1410 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1411 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1412
1413 let mut this = Self {
1414 focus_handle,
1415 buffer: buffer.clone(),
1416 display_map: display_map.clone(),
1417 selections,
1418 scroll_manager: ScrollManager::new(cx),
1419 columnar_selection_tail: None,
1420 add_selections_state: None,
1421 select_next_state: None,
1422 select_prev_state: None,
1423 selection_history: Default::default(),
1424 autoclose_regions: Default::default(),
1425 snippet_stack: Default::default(),
1426 select_larger_syntax_node_stack: Vec::new(),
1427 ime_transaction: Default::default(),
1428 active_diagnostics: None,
1429 soft_wrap_mode_override,
1430 completion_provider: project.clone().map(|project| Box::new(project) as _),
1431 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1432 project,
1433 blink_manager: blink_manager.clone(),
1434 show_local_selections: true,
1435 mode,
1436 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1437 show_gutter: mode == EditorMode::Full,
1438 show_wrap_guides: None,
1439 placeholder_text: None,
1440 highlight_order: 0,
1441 highlighted_rows: HashMap::default(),
1442 background_highlights: Default::default(),
1443 nav_history: None,
1444 context_menu: RwLock::new(None),
1445 mouse_context_menu: None,
1446 completion_tasks: Default::default(),
1447 find_all_references_task_sources: Vec::new(),
1448 next_completion_id: 0,
1449 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1450 next_inlay_id: 0,
1451 available_code_actions: Default::default(),
1452 code_actions_task: Default::default(),
1453 document_highlights_task: Default::default(),
1454 pending_rename: Default::default(),
1455 searchable: true,
1456 cursor_shape: Default::default(),
1457 autoindent_mode: Some(AutoindentMode::EachLine),
1458 collapse_matches: false,
1459 workspace: None,
1460 keymap_context_layers: Default::default(),
1461 input_enabled: true,
1462 use_modal_editing: mode == EditorMode::Full,
1463 read_only: false,
1464 use_autoclose: true,
1465 auto_replace_emoji_shortcode: false,
1466 leader_peer_id: None,
1467 remote_id: None,
1468 hover_state: Default::default(),
1469 hovered_link_state: Default::default(),
1470 inline_completion_provider: None,
1471 active_inline_completion: None,
1472 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1473 gutter_hovered: false,
1474 pixel_position_of_newest_cursor: None,
1475 gutter_width: Default::default(),
1476 style: None,
1477 show_cursor_names: false,
1478 hovered_cursors: Default::default(),
1479 editor_actions: Default::default(),
1480 vim_replace_map: Default::default(),
1481 show_inline_completions: mode == EditorMode::Full,
1482 custom_context_menu: None,
1483 show_git_blame: false,
1484 blame: None,
1485 blame_subscription: None,
1486 _subscriptions: vec![
1487 cx.observe(&buffer, Self::on_buffer_changed),
1488 cx.subscribe(&buffer, Self::on_buffer_event),
1489 cx.observe(&display_map, Self::on_display_map_changed),
1490 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1491 cx.observe_global::<SettingsStore>(Self::settings_changed),
1492 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1493 cx.observe_window_activation(|editor, cx| {
1494 let active = cx.is_window_active();
1495 editor.blink_manager.update(cx, |blink_manager, cx| {
1496 if active {
1497 blink_manager.enable(cx);
1498 } else {
1499 blink_manager.show_cursor(cx);
1500 blink_manager.disable(cx);
1501 }
1502 });
1503 }),
1504 ],
1505 };
1506
1507 this._subscriptions.extend(project_subscriptions);
1508
1509 this.end_selection(cx);
1510 this.scroll_manager.show_scrollbar(cx);
1511
1512 if mode == EditorMode::Full {
1513 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1514 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1515 }
1516
1517 this.report_editor_event("open", None, cx);
1518 this
1519 }
1520
1521 fn key_context(&self, cx: &AppContext) -> KeyContext {
1522 let mut key_context = KeyContext::default();
1523 key_context.add("Editor");
1524 let mode = match self.mode {
1525 EditorMode::SingleLine => "single_line",
1526 EditorMode::AutoHeight { .. } => "auto_height",
1527 EditorMode::Full => "full",
1528 };
1529 key_context.set("mode", mode);
1530 if self.pending_rename.is_some() {
1531 key_context.add("renaming");
1532 }
1533 if self.context_menu_visible() {
1534 match self.context_menu.read().as_ref() {
1535 Some(ContextMenu::Completions(_)) => {
1536 key_context.add("menu");
1537 key_context.add("showing_completions")
1538 }
1539 Some(ContextMenu::CodeActions(_)) => {
1540 key_context.add("menu");
1541 key_context.add("showing_code_actions")
1542 }
1543 None => {}
1544 }
1545 }
1546
1547 for layer in self.keymap_context_layers.values() {
1548 key_context.extend(layer);
1549 }
1550
1551 if let Some(extension) = self
1552 .buffer
1553 .read(cx)
1554 .as_singleton()
1555 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1556 {
1557 key_context.set("extension", extension.to_string());
1558 }
1559
1560 if self.has_active_inline_completion(cx) {
1561 key_context.add("copilot_suggestion");
1562 key_context.add("inline_completion");
1563 }
1564
1565 key_context
1566 }
1567
1568 pub fn new_file(
1569 workspace: &mut Workspace,
1570 _: &workspace::NewFile,
1571 cx: &mut ViewContext<Workspace>,
1572 ) {
1573 let project = workspace.project().clone();
1574 if project.read(cx).is_remote() {
1575 cx.propagate();
1576 } else if let Some(buffer) = project
1577 .update(cx, |project, cx| project.create_buffer("", None, cx))
1578 .log_err()
1579 {
1580 workspace.add_item_to_active_pane(
1581 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1582 cx,
1583 );
1584 }
1585 }
1586
1587 pub fn new_file_in_direction(
1588 workspace: &mut Workspace,
1589 action: &workspace::NewFileInDirection,
1590 cx: &mut ViewContext<Workspace>,
1591 ) {
1592 let project = workspace.project().clone();
1593 if project.read(cx).is_remote() {
1594 cx.propagate();
1595 } else if let Some(buffer) = project
1596 .update(cx, |project, cx| project.create_buffer("", None, cx))
1597 .log_err()
1598 {
1599 workspace.split_item(
1600 action.0,
1601 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1602 cx,
1603 );
1604 }
1605 }
1606
1607 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1608 self.buffer.read(cx).replica_id()
1609 }
1610
1611 pub fn leader_peer_id(&self) -> Option<PeerId> {
1612 self.leader_peer_id
1613 }
1614
1615 pub fn buffer(&self) -> &Model<MultiBuffer> {
1616 &self.buffer
1617 }
1618
1619 pub fn workspace(&self) -> Option<View<Workspace>> {
1620 self.workspace.as_ref()?.0.upgrade()
1621 }
1622
1623 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1624 self.buffer().read(cx).title(cx)
1625 }
1626
1627 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1628 EditorSnapshot {
1629 mode: self.mode,
1630 show_gutter: self.show_gutter,
1631 show_git_blame: self
1632 .blame
1633 .as_ref()
1634 .map_or(false, |blame| blame.read(cx).has_generated_entries()),
1635 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1636 scroll_anchor: self.scroll_manager.anchor(),
1637 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1638 placeholder_text: self.placeholder_text.clone(),
1639 is_focused: self.focus_handle.is_focused(cx),
1640 }
1641 }
1642
1643 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1644 self.buffer.read(cx).language_at(point, cx)
1645 }
1646
1647 pub fn file_at<T: ToOffset>(
1648 &self,
1649 point: T,
1650 cx: &AppContext,
1651 ) -> Option<Arc<dyn language::File>> {
1652 self.buffer.read(cx).read(cx).file_at(point).cloned()
1653 }
1654
1655 pub fn active_excerpt(
1656 &self,
1657 cx: &AppContext,
1658 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1659 self.buffer
1660 .read(cx)
1661 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1662 }
1663
1664 pub fn mode(&self) -> EditorMode {
1665 self.mode
1666 }
1667
1668 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1669 self.collaboration_hub.as_deref()
1670 }
1671
1672 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1673 self.collaboration_hub = Some(hub);
1674 }
1675
1676 pub fn set_custom_context_menu(
1677 &mut self,
1678 f: impl 'static
1679 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1680 ) {
1681 self.custom_context_menu = Some(Box::new(f))
1682 }
1683
1684 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1685 self.completion_provider = Some(hub);
1686 }
1687
1688 pub fn set_inline_completion_provider(
1689 &mut self,
1690 provider: Model<impl InlineCompletionProvider>,
1691 cx: &mut ViewContext<Self>,
1692 ) {
1693 self.inline_completion_provider = Some(RegisteredInlineCompletionProvider {
1694 _subscription: cx.observe(&provider, |this, _, cx| {
1695 if this.focus_handle.is_focused(cx) {
1696 this.update_visible_inline_completion(cx);
1697 }
1698 }),
1699 provider: Arc::new(provider),
1700 });
1701 self.refresh_inline_completion(false, cx);
1702 }
1703
1704 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1705 self.placeholder_text.as_deref()
1706 }
1707
1708 pub fn set_placeholder_text(
1709 &mut self,
1710 placeholder_text: impl Into<Arc<str>>,
1711 cx: &mut ViewContext<Self>,
1712 ) {
1713 let placeholder_text = Some(placeholder_text.into());
1714 if self.placeholder_text != placeholder_text {
1715 self.placeholder_text = placeholder_text;
1716 cx.notify();
1717 }
1718 }
1719
1720 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1721 self.cursor_shape = cursor_shape;
1722 cx.notify();
1723 }
1724
1725 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1726 self.collapse_matches = collapse_matches;
1727 }
1728
1729 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1730 if self.collapse_matches {
1731 return range.start..range.start;
1732 }
1733 range.clone()
1734 }
1735
1736 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1737 if self.display_map.read(cx).clip_at_line_ends != clip {
1738 self.display_map
1739 .update(cx, |map, _| map.clip_at_line_ends = clip);
1740 }
1741 }
1742
1743 pub fn set_keymap_context_layer<Tag: 'static>(
1744 &mut self,
1745 context: KeyContext,
1746 cx: &mut ViewContext<Self>,
1747 ) {
1748 self.keymap_context_layers
1749 .insert(TypeId::of::<Tag>(), context);
1750 cx.notify();
1751 }
1752
1753 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1754 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1755 cx.notify();
1756 }
1757
1758 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1759 self.input_enabled = input_enabled;
1760 }
1761
1762 pub fn set_autoindent(&mut self, autoindent: bool) {
1763 if autoindent {
1764 self.autoindent_mode = Some(AutoindentMode::EachLine);
1765 } else {
1766 self.autoindent_mode = None;
1767 }
1768 }
1769
1770 pub fn read_only(&self, cx: &AppContext) -> bool {
1771 self.read_only || self.buffer.read(cx).read_only()
1772 }
1773
1774 pub fn set_read_only(&mut self, read_only: bool) {
1775 self.read_only = read_only;
1776 }
1777
1778 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1779 self.use_autoclose = autoclose;
1780 }
1781
1782 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1783 self.auto_replace_emoji_shortcode = auto_replace;
1784 }
1785
1786 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
1787 self.show_inline_completions = show_inline_completions;
1788 }
1789
1790 pub fn set_use_modal_editing(&mut self, to: bool) {
1791 self.use_modal_editing = to;
1792 }
1793
1794 pub fn use_modal_editing(&self) -> bool {
1795 self.use_modal_editing
1796 }
1797
1798 fn selections_did_change(
1799 &mut self,
1800 local: bool,
1801 old_cursor_position: &Anchor,
1802 cx: &mut ViewContext<Self>,
1803 ) {
1804 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1805 self.buffer.update(cx, |buffer, cx| {
1806 buffer.set_active_selections(
1807 &self.selections.disjoint_anchors(),
1808 self.selections.line_mode,
1809 self.cursor_shape,
1810 cx,
1811 )
1812 });
1813 }
1814
1815 let display_map = self
1816 .display_map
1817 .update(cx, |display_map, cx| display_map.snapshot(cx));
1818 let buffer = &display_map.buffer_snapshot;
1819 self.add_selections_state = None;
1820 self.select_next_state = None;
1821 self.select_prev_state = None;
1822 self.select_larger_syntax_node_stack.clear();
1823 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1824 self.snippet_stack
1825 .invalidate(&self.selections.disjoint_anchors(), buffer);
1826 self.take_rename(false, cx);
1827
1828 let new_cursor_position = self.selections.newest_anchor().head();
1829
1830 self.push_to_nav_history(
1831 *old_cursor_position,
1832 Some(new_cursor_position.to_point(buffer)),
1833 cx,
1834 );
1835
1836 if local {
1837 let new_cursor_position = self.selections.newest_anchor().head();
1838 let mut context_menu = self.context_menu.write();
1839 let completion_menu = match context_menu.as_ref() {
1840 Some(ContextMenu::Completions(menu)) => Some(menu),
1841
1842 _ => {
1843 *context_menu = None;
1844 None
1845 }
1846 };
1847
1848 if let Some(completion_menu) = completion_menu {
1849 let cursor_position = new_cursor_position.to_offset(buffer);
1850 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
1851 if kind == Some(CharKind::Word)
1852 && word_range.to_inclusive().contains(&cursor_position)
1853 {
1854 let mut completion_menu = completion_menu.clone();
1855 drop(context_menu);
1856
1857 let query = Self::completion_query(buffer, cursor_position);
1858 cx.spawn(move |this, mut cx| async move {
1859 completion_menu
1860 .filter(query.as_deref(), cx.background_executor().clone())
1861 .await;
1862
1863 this.update(&mut cx, |this, cx| {
1864 let mut context_menu = this.context_menu.write();
1865 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1866 return;
1867 };
1868
1869 if menu.id > completion_menu.id {
1870 return;
1871 }
1872
1873 *context_menu = Some(ContextMenu::Completions(completion_menu));
1874 drop(context_menu);
1875 cx.notify();
1876 })
1877 })
1878 .detach();
1879
1880 self.show_completions(&ShowCompletions, cx);
1881 } else {
1882 drop(context_menu);
1883 self.hide_context_menu(cx);
1884 }
1885 } else {
1886 drop(context_menu);
1887 }
1888
1889 hide_hover(self, cx);
1890
1891 if old_cursor_position.to_display_point(&display_map).row()
1892 != new_cursor_position.to_display_point(&display_map).row()
1893 {
1894 self.available_code_actions.take();
1895 }
1896 self.refresh_code_actions(cx);
1897 self.refresh_document_highlights(cx);
1898 refresh_matching_bracket_highlights(self, cx);
1899 self.discard_inline_completion(cx);
1900 }
1901
1902 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1903 cx.emit(EditorEvent::SelectionsChanged { local });
1904
1905 if self.selections.disjoint_anchors().len() == 1 {
1906 cx.emit(SearchEvent::ActiveMatchChanged)
1907 }
1908
1909 cx.notify();
1910 }
1911
1912 pub fn change_selections<R>(
1913 &mut self,
1914 autoscroll: Option<Autoscroll>,
1915 cx: &mut ViewContext<Self>,
1916 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1917 ) -> R {
1918 let old_cursor_position = self.selections.newest_anchor().head();
1919 self.push_to_selection_history();
1920
1921 let (changed, result) = self.selections.change_with(cx, change);
1922
1923 if changed {
1924 if let Some(autoscroll) = autoscroll {
1925 self.request_autoscroll(autoscroll, cx);
1926 }
1927 self.selections_did_change(true, &old_cursor_position, cx);
1928 }
1929
1930 result
1931 }
1932
1933 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1934 where
1935 I: IntoIterator<Item = (Range<S>, T)>,
1936 S: ToOffset,
1937 T: Into<Arc<str>>,
1938 {
1939 if self.read_only(cx) {
1940 return;
1941 }
1942
1943 self.buffer
1944 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1945 }
1946
1947 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1948 where
1949 I: IntoIterator<Item = (Range<S>, T)>,
1950 S: ToOffset,
1951 T: Into<Arc<str>>,
1952 {
1953 if self.read_only(cx) {
1954 return;
1955 }
1956
1957 self.buffer.update(cx, |buffer, cx| {
1958 buffer.edit(edits, self.autoindent_mode.clone(), cx)
1959 });
1960 }
1961
1962 pub fn edit_with_block_indent<I, S, T>(
1963 &mut self,
1964 edits: I,
1965 original_indent_columns: Vec<u32>,
1966 cx: &mut ViewContext<Self>,
1967 ) where
1968 I: IntoIterator<Item = (Range<S>, T)>,
1969 S: ToOffset,
1970 T: Into<Arc<str>>,
1971 {
1972 if self.read_only(cx) {
1973 return;
1974 }
1975
1976 self.buffer.update(cx, |buffer, cx| {
1977 buffer.edit(
1978 edits,
1979 Some(AutoindentMode::Block {
1980 original_indent_columns,
1981 }),
1982 cx,
1983 )
1984 });
1985 }
1986
1987 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
1988 self.hide_context_menu(cx);
1989
1990 match phase {
1991 SelectPhase::Begin {
1992 position,
1993 add,
1994 click_count,
1995 } => self.begin_selection(position, add, click_count, cx),
1996 SelectPhase::BeginColumnar {
1997 position,
1998 goal_column,
1999 } => self.begin_columnar_selection(position, goal_column, cx),
2000 SelectPhase::Extend {
2001 position,
2002 click_count,
2003 } => self.extend_selection(position, click_count, cx),
2004 SelectPhase::Update {
2005 position,
2006 goal_column,
2007 scroll_delta,
2008 } => self.update_selection(position, goal_column, scroll_delta, cx),
2009 SelectPhase::End => self.end_selection(cx),
2010 }
2011 }
2012
2013 fn extend_selection(
2014 &mut self,
2015 position: DisplayPoint,
2016 click_count: usize,
2017 cx: &mut ViewContext<Self>,
2018 ) {
2019 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2020 let tail = self.selections.newest::<usize>(cx).tail();
2021 self.begin_selection(position, false, click_count, cx);
2022
2023 let position = position.to_offset(&display_map, Bias::Left);
2024 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2025
2026 let mut pending_selection = self
2027 .selections
2028 .pending_anchor()
2029 .expect("extend_selection not called with pending selection");
2030 if position >= tail {
2031 pending_selection.start = tail_anchor;
2032 } else {
2033 pending_selection.end = tail_anchor;
2034 pending_selection.reversed = true;
2035 }
2036
2037 let mut pending_mode = self.selections.pending_mode().unwrap();
2038 match &mut pending_mode {
2039 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2040 _ => {}
2041 }
2042
2043 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2044 s.set_pending(pending_selection, pending_mode)
2045 });
2046 }
2047
2048 fn begin_selection(
2049 &mut self,
2050 position: DisplayPoint,
2051 add: bool,
2052 click_count: usize,
2053 cx: &mut ViewContext<Self>,
2054 ) {
2055 if !self.focus_handle.is_focused(cx) {
2056 cx.focus(&self.focus_handle);
2057 }
2058
2059 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2060 let buffer = &display_map.buffer_snapshot;
2061 let newest_selection = self.selections.newest_anchor().clone();
2062 let position = display_map.clip_point(position, Bias::Left);
2063
2064 let start;
2065 let end;
2066 let mode;
2067 let auto_scroll;
2068 match click_count {
2069 1 => {
2070 start = buffer.anchor_before(position.to_point(&display_map));
2071 end = start;
2072 mode = SelectMode::Character;
2073 auto_scroll = true;
2074 }
2075 2 => {
2076 let range = movement::surrounding_word(&display_map, position);
2077 start = buffer.anchor_before(range.start.to_point(&display_map));
2078 end = buffer.anchor_before(range.end.to_point(&display_map));
2079 mode = SelectMode::Word(start..end);
2080 auto_scroll = true;
2081 }
2082 3 => {
2083 let position = display_map
2084 .clip_point(position, Bias::Left)
2085 .to_point(&display_map);
2086 let line_start = display_map.prev_line_boundary(position).0;
2087 let next_line_start = buffer.clip_point(
2088 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2089 Bias::Left,
2090 );
2091 start = buffer.anchor_before(line_start);
2092 end = buffer.anchor_before(next_line_start);
2093 mode = SelectMode::Line(start..end);
2094 auto_scroll = true;
2095 }
2096 _ => {
2097 start = buffer.anchor_before(0);
2098 end = buffer.anchor_before(buffer.len());
2099 mode = SelectMode::All;
2100 auto_scroll = false;
2101 }
2102 }
2103
2104 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2105 if !add {
2106 s.clear_disjoint();
2107 } else if click_count > 1 {
2108 s.delete(newest_selection.id)
2109 }
2110
2111 s.set_pending_anchor_range(start..end, mode);
2112 });
2113 }
2114
2115 fn begin_columnar_selection(
2116 &mut self,
2117 position: DisplayPoint,
2118 goal_column: u32,
2119 cx: &mut ViewContext<Self>,
2120 ) {
2121 if !self.focus_handle.is_focused(cx) {
2122 cx.focus(&self.focus_handle);
2123 }
2124
2125 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2126 let tail = self.selections.newest::<Point>(cx).tail();
2127 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2128
2129 self.select_columns(
2130 tail.to_display_point(&display_map),
2131 position,
2132 goal_column,
2133 &display_map,
2134 cx,
2135 );
2136 }
2137
2138 fn update_selection(
2139 &mut self,
2140 position: DisplayPoint,
2141 goal_column: u32,
2142 scroll_delta: gpui::Point<f32>,
2143 cx: &mut ViewContext<Self>,
2144 ) {
2145 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2146
2147 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2148 let tail = tail.to_display_point(&display_map);
2149 self.select_columns(tail, position, goal_column, &display_map, cx);
2150 } else if let Some(mut pending) = self.selections.pending_anchor() {
2151 let buffer = self.buffer.read(cx).snapshot(cx);
2152 let head;
2153 let tail;
2154 let mode = self.selections.pending_mode().unwrap();
2155 match &mode {
2156 SelectMode::Character => {
2157 head = position.to_point(&display_map);
2158 tail = pending.tail().to_point(&buffer);
2159 }
2160 SelectMode::Word(original_range) => {
2161 let original_display_range = original_range.start.to_display_point(&display_map)
2162 ..original_range.end.to_display_point(&display_map);
2163 let original_buffer_range = original_display_range.start.to_point(&display_map)
2164 ..original_display_range.end.to_point(&display_map);
2165 if movement::is_inside_word(&display_map, position)
2166 || original_display_range.contains(&position)
2167 {
2168 let word_range = movement::surrounding_word(&display_map, position);
2169 if word_range.start < original_display_range.start {
2170 head = word_range.start.to_point(&display_map);
2171 } else {
2172 head = word_range.end.to_point(&display_map);
2173 }
2174 } else {
2175 head = position.to_point(&display_map);
2176 }
2177
2178 if head <= original_buffer_range.start {
2179 tail = original_buffer_range.end;
2180 } else {
2181 tail = original_buffer_range.start;
2182 }
2183 }
2184 SelectMode::Line(original_range) => {
2185 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2186
2187 let position = display_map
2188 .clip_point(position, Bias::Left)
2189 .to_point(&display_map);
2190 let line_start = display_map.prev_line_boundary(position).0;
2191 let next_line_start = buffer.clip_point(
2192 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2193 Bias::Left,
2194 );
2195
2196 if line_start < original_range.start {
2197 head = line_start
2198 } else {
2199 head = next_line_start
2200 }
2201
2202 if head <= original_range.start {
2203 tail = original_range.end;
2204 } else {
2205 tail = original_range.start;
2206 }
2207 }
2208 SelectMode::All => {
2209 return;
2210 }
2211 };
2212
2213 if head < tail {
2214 pending.start = buffer.anchor_before(head);
2215 pending.end = buffer.anchor_before(tail);
2216 pending.reversed = true;
2217 } else {
2218 pending.start = buffer.anchor_before(tail);
2219 pending.end = buffer.anchor_before(head);
2220 pending.reversed = false;
2221 }
2222
2223 self.change_selections(None, cx, |s| {
2224 s.set_pending(pending, mode);
2225 });
2226 } else {
2227 log::error!("update_selection dispatched with no pending selection");
2228 return;
2229 }
2230
2231 self.apply_scroll_delta(scroll_delta, cx);
2232 cx.notify();
2233 }
2234
2235 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2236 self.columnar_selection_tail.take();
2237 if self.selections.pending_anchor().is_some() {
2238 let selections = self.selections.all::<usize>(cx);
2239 self.change_selections(None, cx, |s| {
2240 s.select(selections);
2241 s.clear_pending();
2242 });
2243 }
2244 }
2245
2246 fn select_columns(
2247 &mut self,
2248 tail: DisplayPoint,
2249 head: DisplayPoint,
2250 goal_column: u32,
2251 display_map: &DisplaySnapshot,
2252 cx: &mut ViewContext<Self>,
2253 ) {
2254 let start_row = cmp::min(tail.row(), head.row());
2255 let end_row = cmp::max(tail.row(), head.row());
2256 let start_column = cmp::min(tail.column(), goal_column);
2257 let end_column = cmp::max(tail.column(), goal_column);
2258 let reversed = start_column < tail.column();
2259
2260 let selection_ranges = (start_row..=end_row)
2261 .filter_map(|row| {
2262 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2263 let start = display_map
2264 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2265 .to_point(display_map);
2266 let end = display_map
2267 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2268 .to_point(display_map);
2269 if reversed {
2270 Some(end..start)
2271 } else {
2272 Some(start..end)
2273 }
2274 } else {
2275 None
2276 }
2277 })
2278 .collect::<Vec<_>>();
2279
2280 self.change_selections(None, cx, |s| {
2281 s.select_ranges(selection_ranges);
2282 });
2283 cx.notify();
2284 }
2285
2286 pub fn has_pending_nonempty_selection(&self) -> bool {
2287 let pending_nonempty_selection = match self.selections.pending_anchor() {
2288 Some(Selection { start, end, .. }) => start != end,
2289 None => false,
2290 };
2291 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2292 }
2293
2294 pub fn has_pending_selection(&self) -> bool {
2295 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2296 }
2297
2298 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2299 if self.dismiss_menus_and_popups(cx) {
2300 return;
2301 }
2302
2303 if self.mode == EditorMode::Full {
2304 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2305 return;
2306 }
2307 }
2308
2309 cx.propagate();
2310 }
2311
2312 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2313 if self.take_rename(false, cx).is_some() {
2314 return true;
2315 }
2316
2317 if hide_hover(self, cx) {
2318 return true;
2319 }
2320
2321 if self.hide_context_menu(cx).is_some() {
2322 return true;
2323 }
2324
2325 if self.discard_inline_completion(cx) {
2326 return true;
2327 }
2328
2329 if self.snippet_stack.pop().is_some() {
2330 return true;
2331 }
2332
2333 if self.mode == EditorMode::Full {
2334 if self.active_diagnostics.is_some() {
2335 self.dismiss_diagnostics(cx);
2336 return true;
2337 }
2338 }
2339
2340 false
2341 }
2342
2343 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2344 let text: Arc<str> = text.into();
2345
2346 if self.read_only(cx) {
2347 return;
2348 }
2349
2350 let selections = self.selections.all_adjusted(cx);
2351 let mut brace_inserted = false;
2352 let mut edits = Vec::new();
2353 let mut new_selections = Vec::with_capacity(selections.len());
2354 let mut new_autoclose_regions = Vec::new();
2355 let snapshot = self.buffer.read(cx).read(cx);
2356
2357 for (selection, autoclose_region) in
2358 self.selections_with_autoclose_regions(selections, &snapshot)
2359 {
2360 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2361 // Determine if the inserted text matches the opening or closing
2362 // bracket of any of this language's bracket pairs.
2363 let mut bracket_pair = None;
2364 let mut is_bracket_pair_start = false;
2365 let mut is_bracket_pair_end = false;
2366 if !text.is_empty() {
2367 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2368 // and they are removing the character that triggered IME popup.
2369 for (pair, enabled) in scope.brackets() {
2370 if !pair.close {
2371 continue;
2372 }
2373
2374 if enabled && pair.start.ends_with(text.as_ref()) {
2375 bracket_pair = Some(pair.clone());
2376 is_bracket_pair_start = true;
2377 break;
2378 }
2379 if pair.end.as_str() == text.as_ref() {
2380 bracket_pair = Some(pair.clone());
2381 is_bracket_pair_end = true;
2382 break;
2383 }
2384 }
2385 }
2386
2387 if let Some(bracket_pair) = bracket_pair {
2388 if selection.is_empty() {
2389 if is_bracket_pair_start {
2390 let prefix_len = bracket_pair.start.len() - text.len();
2391
2392 // If the inserted text is a suffix of an opening bracket and the
2393 // selection is preceded by the rest of the opening bracket, then
2394 // insert the closing bracket.
2395 let following_text_allows_autoclose = snapshot
2396 .chars_at(selection.start)
2397 .next()
2398 .map_or(true, |c| scope.should_autoclose_before(c));
2399 let preceding_text_matches_prefix = prefix_len == 0
2400 || (selection.start.column >= (prefix_len as u32)
2401 && snapshot.contains_str_at(
2402 Point::new(
2403 selection.start.row,
2404 selection.start.column - (prefix_len as u32),
2405 ),
2406 &bracket_pair.start[..prefix_len],
2407 ));
2408 let autoclose = self.use_autoclose
2409 && snapshot.settings_at(selection.start, cx).use_autoclose;
2410 if autoclose
2411 && following_text_allows_autoclose
2412 && preceding_text_matches_prefix
2413 {
2414 let anchor = snapshot.anchor_before(selection.end);
2415 new_selections.push((selection.map(|_| anchor), text.len()));
2416 new_autoclose_regions.push((
2417 anchor,
2418 text.len(),
2419 selection.id,
2420 bracket_pair.clone(),
2421 ));
2422 edits.push((
2423 selection.range(),
2424 format!("{}{}", text, bracket_pair.end).into(),
2425 ));
2426 brace_inserted = true;
2427 continue;
2428 }
2429 }
2430
2431 if let Some(region) = autoclose_region {
2432 // If the selection is followed by an auto-inserted closing bracket,
2433 // then don't insert that closing bracket again; just move the selection
2434 // past the closing bracket.
2435 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2436 && text.as_ref() == region.pair.end.as_str();
2437 if should_skip {
2438 let anchor = snapshot.anchor_after(selection.end);
2439 new_selections
2440 .push((selection.map(|_| anchor), region.pair.end.len()));
2441 continue;
2442 }
2443 }
2444
2445 let always_treat_brackets_as_autoclosed = snapshot
2446 .settings_at(selection.start, cx)
2447 .always_treat_brackets_as_autoclosed;
2448 if always_treat_brackets_as_autoclosed
2449 && is_bracket_pair_end
2450 && snapshot.contains_str_at(selection.end, text.as_ref())
2451 {
2452 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2453 // and the inserted text is a closing bracket and the selection is followed
2454 // by the closing bracket then move the selection past the closing bracket.
2455 let anchor = snapshot.anchor_after(selection.end);
2456 new_selections.push((selection.map(|_| anchor), text.len()));
2457 continue;
2458 }
2459 }
2460 // If an opening bracket is 1 character long and is typed while
2461 // text is selected, then surround that text with the bracket pair.
2462 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2463 edits.push((selection.start..selection.start, text.clone()));
2464 edits.push((
2465 selection.end..selection.end,
2466 bracket_pair.end.as_str().into(),
2467 ));
2468 brace_inserted = true;
2469 new_selections.push((
2470 Selection {
2471 id: selection.id,
2472 start: snapshot.anchor_after(selection.start),
2473 end: snapshot.anchor_before(selection.end),
2474 reversed: selection.reversed,
2475 goal: selection.goal,
2476 },
2477 0,
2478 ));
2479 continue;
2480 }
2481 }
2482 }
2483
2484 if self.auto_replace_emoji_shortcode
2485 && selection.is_empty()
2486 && text.as_ref().ends_with(':')
2487 {
2488 if let Some(possible_emoji_short_code) =
2489 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2490 {
2491 if !possible_emoji_short_code.is_empty() {
2492 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2493 let emoji_shortcode_start = Point::new(
2494 selection.start.row,
2495 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2496 );
2497
2498 // Remove shortcode from buffer
2499 edits.push((
2500 emoji_shortcode_start..selection.start,
2501 "".to_string().into(),
2502 ));
2503 new_selections.push((
2504 Selection {
2505 id: selection.id,
2506 start: snapshot.anchor_after(emoji_shortcode_start),
2507 end: snapshot.anchor_before(selection.start),
2508 reversed: selection.reversed,
2509 goal: selection.goal,
2510 },
2511 0,
2512 ));
2513
2514 // Insert emoji
2515 let selection_start_anchor = snapshot.anchor_after(selection.start);
2516 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2517 edits.push((selection.start..selection.end, emoji.to_string().into()));
2518
2519 continue;
2520 }
2521 }
2522 }
2523 }
2524
2525 // If not handling any auto-close operation, then just replace the selected
2526 // text with the given input and move the selection to the end of the
2527 // newly inserted text.
2528 let anchor = snapshot.anchor_after(selection.end);
2529 new_selections.push((selection.map(|_| anchor), 0));
2530 edits.push((selection.start..selection.end, text.clone()));
2531 }
2532
2533 drop(snapshot);
2534 self.transact(cx, |this, cx| {
2535 this.buffer.update(cx, |buffer, cx| {
2536 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2537 });
2538
2539 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2540 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2541 let snapshot = this.buffer.read(cx).read(cx);
2542 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2543 .zip(new_selection_deltas)
2544 .map(|(selection, delta)| Selection {
2545 id: selection.id,
2546 start: selection.start + delta,
2547 end: selection.end + delta,
2548 reversed: selection.reversed,
2549 goal: SelectionGoal::None,
2550 })
2551 .collect::<Vec<_>>();
2552
2553 let mut i = 0;
2554 for (position, delta, selection_id, pair) in new_autoclose_regions {
2555 let position = position.to_offset(&snapshot) + delta;
2556 let start = snapshot.anchor_before(position);
2557 let end = snapshot.anchor_after(position);
2558 while let Some(existing_state) = this.autoclose_regions.get(i) {
2559 match existing_state.range.start.cmp(&start, &snapshot) {
2560 Ordering::Less => i += 1,
2561 Ordering::Greater => break,
2562 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2563 Ordering::Less => i += 1,
2564 Ordering::Equal => break,
2565 Ordering::Greater => break,
2566 },
2567 }
2568 }
2569 this.autoclose_regions.insert(
2570 i,
2571 AutocloseRegion {
2572 selection_id,
2573 range: start..end,
2574 pair,
2575 },
2576 );
2577 }
2578
2579 drop(snapshot);
2580 let had_active_copilot_completion = this.has_active_inline_completion(cx);
2581 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2582
2583 if brace_inserted {
2584 // If we inserted a brace while composing text (i.e. typing `"` on a
2585 // Brazilian keyboard), exit the composing state because most likely
2586 // the user wanted to surround the selection.
2587 this.unmark_text(cx);
2588 } else if EditorSettings::get_global(cx).use_on_type_format {
2589 if let Some(on_type_format_task) =
2590 this.trigger_on_type_formatting(text.to_string(), cx)
2591 {
2592 on_type_format_task.detach_and_log_err(cx);
2593 }
2594 }
2595
2596 if had_active_copilot_completion {
2597 this.refresh_inline_completion(true, cx);
2598 if !this.has_active_inline_completion(cx) {
2599 this.trigger_completion_on_input(&text, cx);
2600 }
2601 } else {
2602 this.trigger_completion_on_input(&text, cx);
2603 this.refresh_inline_completion(true, cx);
2604 }
2605 });
2606 }
2607
2608 fn find_possible_emoji_shortcode_at_position(
2609 snapshot: &MultiBufferSnapshot,
2610 position: Point,
2611 ) -> Option<String> {
2612 let mut chars = Vec::new();
2613 let mut found_colon = false;
2614 for char in snapshot.reversed_chars_at(position).take(100) {
2615 // Found a possible emoji shortcode in the middle of the buffer
2616 if found_colon {
2617 if char.is_whitespace() {
2618 chars.reverse();
2619 return Some(chars.iter().collect());
2620 }
2621 // If the previous character is not a whitespace, we are in the middle of a word
2622 // and we only want to complete the shortcode if the word is made up of other emojis
2623 let mut containing_word = String::new();
2624 for ch in snapshot
2625 .reversed_chars_at(position)
2626 .skip(chars.len() + 1)
2627 .take(100)
2628 {
2629 if ch.is_whitespace() {
2630 break;
2631 }
2632 containing_word.push(ch);
2633 }
2634 let containing_word = containing_word.chars().rev().collect::<String>();
2635 if util::word_consists_of_emojis(containing_word.as_str()) {
2636 chars.reverse();
2637 return Some(chars.iter().collect());
2638 }
2639 }
2640
2641 if char.is_whitespace() || !char.is_ascii() {
2642 return None;
2643 }
2644 if char == ':' {
2645 found_colon = true;
2646 } else {
2647 chars.push(char);
2648 }
2649 }
2650 // Found a possible emoji shortcode at the beginning of the buffer
2651 chars.reverse();
2652 Some(chars.iter().collect())
2653 }
2654
2655 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2656 self.transact(cx, |this, cx| {
2657 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2658 let selections = this.selections.all::<usize>(cx);
2659 let multi_buffer = this.buffer.read(cx);
2660 let buffer = multi_buffer.snapshot(cx);
2661 selections
2662 .iter()
2663 .map(|selection| {
2664 let start_point = selection.start.to_point(&buffer);
2665 let mut indent = buffer.indent_size_for_line(start_point.row);
2666 indent.len = cmp::min(indent.len, start_point.column);
2667 let start = selection.start;
2668 let end = selection.end;
2669 let is_cursor = start == end;
2670 let language_scope = buffer.language_scope_at(start);
2671 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2672 &language_scope
2673 {
2674 let leading_whitespace_len = buffer
2675 .reversed_chars_at(start)
2676 .take_while(|c| c.is_whitespace() && *c != '\n')
2677 .map(|c| c.len_utf8())
2678 .sum::<usize>();
2679
2680 let trailing_whitespace_len = buffer
2681 .chars_at(end)
2682 .take_while(|c| c.is_whitespace() && *c != '\n')
2683 .map(|c| c.len_utf8())
2684 .sum::<usize>();
2685
2686 let insert_extra_newline =
2687 language.brackets().any(|(pair, enabled)| {
2688 let pair_start = pair.start.trim_end();
2689 let pair_end = pair.end.trim_start();
2690
2691 enabled
2692 && pair.newline
2693 && buffer.contains_str_at(
2694 end + trailing_whitespace_len,
2695 pair_end,
2696 )
2697 && buffer.contains_str_at(
2698 (start - leading_whitespace_len)
2699 .saturating_sub(pair_start.len()),
2700 pair_start,
2701 )
2702 });
2703 // Comment extension on newline is allowed only for cursor selections
2704 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2705 let is_comment_extension_enabled =
2706 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2707 is_cursor && is_comment_extension_enabled
2708 });
2709 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2710 let max_len_of_delimiter =
2711 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2712 let (snapshot, range) =
2713 buffer.buffer_line_for_row(start_point.row)?;
2714
2715 let mut index_of_first_non_whitespace = 0;
2716 let comment_candidate = snapshot
2717 .chars_for_range(range)
2718 .skip_while(|c| {
2719 let should_skip = c.is_whitespace();
2720 if should_skip {
2721 index_of_first_non_whitespace += 1;
2722 }
2723 should_skip
2724 })
2725 .take(max_len_of_delimiter)
2726 .collect::<String>();
2727 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2728 comment_candidate.starts_with(comment_prefix.as_ref())
2729 })?;
2730 let cursor_is_placed_after_comment_marker =
2731 index_of_first_non_whitespace + comment_prefix.len()
2732 <= start_point.column as usize;
2733 if cursor_is_placed_after_comment_marker {
2734 Some(comment_prefix.clone())
2735 } else {
2736 None
2737 }
2738 };
2739 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2740 get_comment_delimiter(delimiters)
2741 } else {
2742 None
2743 };
2744 (comment_delimiter, insert_extra_newline)
2745 } else {
2746 (None, false)
2747 };
2748
2749 let capacity_for_delimiter = comment_delimiter
2750 .as_deref()
2751 .map(str::len)
2752 .unwrap_or_default();
2753 let mut new_text =
2754 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2755 new_text.push_str("\n");
2756 new_text.extend(indent.chars());
2757 if let Some(delimiter) = &comment_delimiter {
2758 new_text.push_str(&delimiter);
2759 }
2760 if insert_extra_newline {
2761 new_text = new_text.repeat(2);
2762 }
2763
2764 let anchor = buffer.anchor_after(end);
2765 let new_selection = selection.map(|_| anchor);
2766 (
2767 (start..end, new_text),
2768 (insert_extra_newline, new_selection),
2769 )
2770 })
2771 .unzip()
2772 };
2773
2774 this.edit_with_autoindent(edits, cx);
2775 let buffer = this.buffer.read(cx).snapshot(cx);
2776 let new_selections = selection_fixup_info
2777 .into_iter()
2778 .map(|(extra_newline_inserted, new_selection)| {
2779 let mut cursor = new_selection.end.to_point(&buffer);
2780 if extra_newline_inserted {
2781 cursor.row -= 1;
2782 cursor.column = buffer.line_len(cursor.row);
2783 }
2784 new_selection.map(|_| cursor)
2785 })
2786 .collect();
2787
2788 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2789 this.refresh_inline_completion(true, cx);
2790 });
2791 }
2792
2793 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2794 let buffer = self.buffer.read(cx);
2795 let snapshot = buffer.snapshot(cx);
2796
2797 let mut edits = Vec::new();
2798 let mut rows = Vec::new();
2799
2800 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
2801 let cursor = selection.head();
2802 let row = cursor.row;
2803
2804 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2805
2806 let newline = "\n".to_string();
2807 edits.push((start_of_line..start_of_line, newline));
2808
2809 rows.push(row + rows_inserted as u32);
2810 }
2811
2812 self.transact(cx, |editor, cx| {
2813 editor.edit(edits, cx);
2814
2815 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2816 let mut index = 0;
2817 s.move_cursors_with(|map, _, _| {
2818 let row = rows[index];
2819 index += 1;
2820
2821 let point = Point::new(row, 0);
2822 let boundary = map.next_line_boundary(point).1;
2823 let clipped = map.clip_point(boundary, Bias::Left);
2824
2825 (clipped, SelectionGoal::None)
2826 });
2827 });
2828
2829 let mut indent_edits = Vec::new();
2830 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2831 for row in rows {
2832 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2833 for (row, indent) in indents {
2834 if indent.len == 0 {
2835 continue;
2836 }
2837
2838 let text = match indent.kind {
2839 IndentKind::Space => " ".repeat(indent.len as usize),
2840 IndentKind::Tab => "\t".repeat(indent.len as usize),
2841 };
2842 let point = Point::new(row, 0);
2843 indent_edits.push((point..point, text));
2844 }
2845 }
2846 editor.edit(indent_edits, cx);
2847 });
2848 }
2849
2850 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2851 let buffer = self.buffer.read(cx);
2852 let snapshot = buffer.snapshot(cx);
2853
2854 let mut edits = Vec::new();
2855 let mut rows = Vec::new();
2856 let mut rows_inserted = 0;
2857
2858 for selection in self.selections.all_adjusted(cx) {
2859 let cursor = selection.head();
2860 let row = cursor.row;
2861
2862 let point = Point::new(row + 1, 0);
2863 let start_of_line = snapshot.clip_point(point, Bias::Left);
2864
2865 let newline = "\n".to_string();
2866 edits.push((start_of_line..start_of_line, newline));
2867
2868 rows_inserted += 1;
2869 rows.push(row + rows_inserted);
2870 }
2871
2872 self.transact(cx, |editor, cx| {
2873 editor.edit(edits, cx);
2874
2875 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2876 let mut index = 0;
2877 s.move_cursors_with(|map, _, _| {
2878 let row = rows[index];
2879 index += 1;
2880
2881 let point = Point::new(row, 0);
2882 let boundary = map.next_line_boundary(point).1;
2883 let clipped = map.clip_point(boundary, Bias::Left);
2884
2885 (clipped, SelectionGoal::None)
2886 });
2887 });
2888
2889 let mut indent_edits = Vec::new();
2890 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2891 for row in rows {
2892 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2893 for (row, indent) in indents {
2894 if indent.len == 0 {
2895 continue;
2896 }
2897
2898 let text = match indent.kind {
2899 IndentKind::Space => " ".repeat(indent.len as usize),
2900 IndentKind::Tab => "\t".repeat(indent.len as usize),
2901 };
2902 let point = Point::new(row, 0);
2903 indent_edits.push((point..point, text));
2904 }
2905 }
2906 editor.edit(indent_edits, cx);
2907 });
2908 }
2909
2910 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2911 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
2912 original_indent_columns: Vec::new(),
2913 });
2914 self.insert_with_autoindent_mode(text, autoindent, cx);
2915 }
2916
2917 fn insert_with_autoindent_mode(
2918 &mut self,
2919 text: &str,
2920 autoindent_mode: Option<AutoindentMode>,
2921 cx: &mut ViewContext<Self>,
2922 ) {
2923 if self.read_only(cx) {
2924 return;
2925 }
2926
2927 let text: Arc<str> = text.into();
2928 self.transact(cx, |this, cx| {
2929 let old_selections = this.selections.all_adjusted(cx);
2930 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2931 let anchors = {
2932 let snapshot = buffer.read(cx);
2933 old_selections
2934 .iter()
2935 .map(|s| {
2936 let anchor = snapshot.anchor_after(s.head());
2937 s.map(|_| anchor)
2938 })
2939 .collect::<Vec<_>>()
2940 };
2941 buffer.edit(
2942 old_selections
2943 .iter()
2944 .map(|s| (s.start..s.end, text.clone())),
2945 autoindent_mode,
2946 cx,
2947 );
2948 anchors
2949 });
2950
2951 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2952 s.select_anchors(selection_anchors);
2953 })
2954 });
2955 }
2956
2957 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2958 if !EditorSettings::get_global(cx).show_completions_on_input {
2959 return;
2960 }
2961
2962 let selection = self.selections.newest_anchor();
2963 if self
2964 .buffer
2965 .read(cx)
2966 .is_completion_trigger(selection.head(), text, cx)
2967 {
2968 self.show_completions(&ShowCompletions, cx);
2969 } else {
2970 self.hide_context_menu(cx);
2971 }
2972 }
2973
2974 /// If any empty selections is touching the start of its innermost containing autoclose
2975 /// region, expand it to select the brackets.
2976 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2977 let selections = self.selections.all::<usize>(cx);
2978 let buffer = self.buffer.read(cx).read(cx);
2979 let new_selections = self
2980 .selections_with_autoclose_regions(selections, &buffer)
2981 .map(|(mut selection, region)| {
2982 if !selection.is_empty() {
2983 return selection;
2984 }
2985
2986 if let Some(region) = region {
2987 let mut range = region.range.to_offset(&buffer);
2988 if selection.start == range.start && range.start >= region.pair.start.len() {
2989 range.start -= region.pair.start.len();
2990 if buffer.contains_str_at(range.start, ®ion.pair.start)
2991 && buffer.contains_str_at(range.end, ®ion.pair.end)
2992 {
2993 range.end += region.pair.end.len();
2994 selection.start = range.start;
2995 selection.end = range.end;
2996
2997 return selection;
2998 }
2999 }
3000 }
3001
3002 let always_treat_brackets_as_autoclosed = buffer
3003 .settings_at(selection.start, cx)
3004 .always_treat_brackets_as_autoclosed;
3005
3006 if !always_treat_brackets_as_autoclosed {
3007 return selection;
3008 }
3009
3010 if let Some(scope) = buffer.language_scope_at(selection.start) {
3011 for (pair, enabled) in scope.brackets() {
3012 if !enabled || !pair.close {
3013 continue;
3014 }
3015
3016 if buffer.contains_str_at(selection.start, &pair.end) {
3017 let pair_start_len = pair.start.len();
3018 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3019 {
3020 selection.start -= pair_start_len;
3021 selection.end += pair.end.len();
3022
3023 return selection;
3024 }
3025 }
3026 }
3027 }
3028
3029 selection
3030 })
3031 .collect();
3032
3033 drop(buffer);
3034 self.change_selections(None, cx, |selections| selections.select(new_selections));
3035 }
3036
3037 /// Iterate the given selections, and for each one, find the smallest surrounding
3038 /// autoclose region. This uses the ordering of the selections and the autoclose
3039 /// regions to avoid repeated comparisons.
3040 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3041 &'a self,
3042 selections: impl IntoIterator<Item = Selection<D>>,
3043 buffer: &'a MultiBufferSnapshot,
3044 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3045 let mut i = 0;
3046 let mut regions = self.autoclose_regions.as_slice();
3047 selections.into_iter().map(move |selection| {
3048 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3049
3050 let mut enclosing = None;
3051 while let Some(pair_state) = regions.get(i) {
3052 if pair_state.range.end.to_offset(buffer) < range.start {
3053 regions = ®ions[i + 1..];
3054 i = 0;
3055 } else if pair_state.range.start.to_offset(buffer) > range.end {
3056 break;
3057 } else {
3058 if pair_state.selection_id == selection.id {
3059 enclosing = Some(pair_state);
3060 }
3061 i += 1;
3062 }
3063 }
3064
3065 (selection.clone(), enclosing)
3066 })
3067 }
3068
3069 /// Remove any autoclose regions that no longer contain their selection.
3070 fn invalidate_autoclose_regions(
3071 &mut self,
3072 mut selections: &[Selection<Anchor>],
3073 buffer: &MultiBufferSnapshot,
3074 ) {
3075 self.autoclose_regions.retain(|state| {
3076 let mut i = 0;
3077 while let Some(selection) = selections.get(i) {
3078 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3079 selections = &selections[1..];
3080 continue;
3081 }
3082 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3083 break;
3084 }
3085 if selection.id == state.selection_id {
3086 return true;
3087 } else {
3088 i += 1;
3089 }
3090 }
3091 false
3092 });
3093 }
3094
3095 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3096 let offset = position.to_offset(buffer);
3097 let (word_range, kind) = buffer.surrounding_word(offset);
3098 if offset > word_range.start && kind == Some(CharKind::Word) {
3099 Some(
3100 buffer
3101 .text_for_range(word_range.start..offset)
3102 .collect::<String>(),
3103 )
3104 } else {
3105 None
3106 }
3107 }
3108
3109 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3110 self.refresh_inlay_hints(
3111 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3112 cx,
3113 );
3114 }
3115
3116 pub fn inlay_hints_enabled(&self) -> bool {
3117 self.inlay_hint_cache.enabled
3118 }
3119
3120 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3121 if self.project.is_none() || self.mode != EditorMode::Full {
3122 return;
3123 }
3124
3125 let reason_description = reason.description();
3126 let ignore_debounce = matches!(
3127 reason,
3128 InlayHintRefreshReason::SettingsChange(_)
3129 | InlayHintRefreshReason::Toggle(_)
3130 | InlayHintRefreshReason::ExcerptsRemoved(_)
3131 );
3132 let (invalidate_cache, required_languages) = match reason {
3133 InlayHintRefreshReason::Toggle(enabled) => {
3134 self.inlay_hint_cache.enabled = enabled;
3135 if enabled {
3136 (InvalidationStrategy::RefreshRequested, None)
3137 } else {
3138 self.inlay_hint_cache.clear();
3139 self.splice_inlays(
3140 self.visible_inlay_hints(cx)
3141 .iter()
3142 .map(|inlay| inlay.id)
3143 .collect(),
3144 Vec::new(),
3145 cx,
3146 );
3147 return;
3148 }
3149 }
3150 InlayHintRefreshReason::SettingsChange(new_settings) => {
3151 match self.inlay_hint_cache.update_settings(
3152 &self.buffer,
3153 new_settings,
3154 self.visible_inlay_hints(cx),
3155 cx,
3156 ) {
3157 ControlFlow::Break(Some(InlaySplice {
3158 to_remove,
3159 to_insert,
3160 })) => {
3161 self.splice_inlays(to_remove, to_insert, cx);
3162 return;
3163 }
3164 ControlFlow::Break(None) => return,
3165 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3166 }
3167 }
3168 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3169 if let Some(InlaySplice {
3170 to_remove,
3171 to_insert,
3172 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3173 {
3174 self.splice_inlays(to_remove, to_insert, cx);
3175 }
3176 return;
3177 }
3178 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3179 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3180 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3181 }
3182 InlayHintRefreshReason::RefreshRequested => {
3183 (InvalidationStrategy::RefreshRequested, None)
3184 }
3185 };
3186
3187 if let Some(InlaySplice {
3188 to_remove,
3189 to_insert,
3190 }) = self.inlay_hint_cache.spawn_hint_refresh(
3191 reason_description,
3192 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3193 invalidate_cache,
3194 ignore_debounce,
3195 cx,
3196 ) {
3197 self.splice_inlays(to_remove, to_insert, cx);
3198 }
3199 }
3200
3201 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3202 self.display_map
3203 .read(cx)
3204 .current_inlays()
3205 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3206 .cloned()
3207 .collect()
3208 }
3209
3210 pub fn excerpts_for_inlay_hints_query(
3211 &self,
3212 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3213 cx: &mut ViewContext<Editor>,
3214 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3215 let Some(project) = self.project.as_ref() else {
3216 return HashMap::default();
3217 };
3218 let project = project.read(cx);
3219 let multi_buffer = self.buffer().read(cx);
3220 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3221 let multi_buffer_visible_start = self
3222 .scroll_manager
3223 .anchor()
3224 .anchor
3225 .to_point(&multi_buffer_snapshot);
3226 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3227 multi_buffer_visible_start
3228 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3229 Bias::Left,
3230 );
3231 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3232 multi_buffer
3233 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3234 .into_iter()
3235 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3236 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3237 let buffer = buffer_handle.read(cx);
3238 let buffer_file = project::File::from_dyn(buffer.file())?;
3239 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3240 let worktree_entry = buffer_worktree
3241 .read(cx)
3242 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3243 if worktree_entry.is_ignored {
3244 return None;
3245 }
3246
3247 let language = buffer.language()?;
3248 if let Some(restrict_to_languages) = restrict_to_languages {
3249 if !restrict_to_languages.contains(language) {
3250 return None;
3251 }
3252 }
3253 Some((
3254 excerpt_id,
3255 (
3256 buffer_handle,
3257 buffer.version().clone(),
3258 excerpt_visible_range,
3259 ),
3260 ))
3261 })
3262 .collect()
3263 }
3264
3265 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3266 TextLayoutDetails {
3267 text_system: cx.text_system().clone(),
3268 editor_style: self.style.clone().unwrap(),
3269 rem_size: cx.rem_size(),
3270 scroll_anchor: self.scroll_manager.anchor(),
3271 visible_rows: self.visible_line_count(),
3272 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3273 }
3274 }
3275
3276 fn splice_inlays(
3277 &self,
3278 to_remove: Vec<InlayId>,
3279 to_insert: Vec<Inlay>,
3280 cx: &mut ViewContext<Self>,
3281 ) {
3282 self.display_map.update(cx, |display_map, cx| {
3283 display_map.splice_inlays(to_remove, to_insert, cx);
3284 });
3285 cx.notify();
3286 }
3287
3288 fn trigger_on_type_formatting(
3289 &self,
3290 input: String,
3291 cx: &mut ViewContext<Self>,
3292 ) -> Option<Task<Result<()>>> {
3293 if input.len() != 1 {
3294 return None;
3295 }
3296
3297 let project = self.project.as_ref()?;
3298 let position = self.selections.newest_anchor().head();
3299 let (buffer, buffer_position) = self
3300 .buffer
3301 .read(cx)
3302 .text_anchor_for_position(position, cx)?;
3303
3304 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3305 // hence we do LSP request & edit on host side only — add formats to host's history.
3306 let push_to_lsp_host_history = true;
3307 // If this is not the host, append its history with new edits.
3308 let push_to_client_history = project.read(cx).is_remote();
3309
3310 let on_type_formatting = project.update(cx, |project, cx| {
3311 project.on_type_format(
3312 buffer.clone(),
3313 buffer_position,
3314 input,
3315 push_to_lsp_host_history,
3316 cx,
3317 )
3318 });
3319 Some(cx.spawn(|editor, mut cx| async move {
3320 if let Some(transaction) = on_type_formatting.await? {
3321 if push_to_client_history {
3322 buffer
3323 .update(&mut cx, |buffer, _| {
3324 buffer.push_transaction(transaction, Instant::now());
3325 })
3326 .ok();
3327 }
3328 editor.update(&mut cx, |editor, cx| {
3329 editor.refresh_document_highlights(cx);
3330 })?;
3331 }
3332 Ok(())
3333 }))
3334 }
3335
3336 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3337 if self.pending_rename.is_some() {
3338 return;
3339 }
3340
3341 let Some(provider) = self.completion_provider.as_ref() else {
3342 return;
3343 };
3344
3345 let position = self.selections.newest_anchor().head();
3346 let (buffer, buffer_position) =
3347 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3348 output
3349 } else {
3350 return;
3351 };
3352
3353 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3354 let completions = provider.completions(&buffer, buffer_position, cx);
3355
3356 let id = post_inc(&mut self.next_completion_id);
3357 let task = cx.spawn(|this, mut cx| {
3358 async move {
3359 let completions = completions.await.log_err();
3360 let menu = if let Some(completions) = completions {
3361 let mut menu = CompletionsMenu {
3362 id,
3363 initial_position: position,
3364 match_candidates: completions
3365 .iter()
3366 .enumerate()
3367 .map(|(id, completion)| {
3368 StringMatchCandidate::new(
3369 id,
3370 completion.label.text[completion.label.filter_range.clone()]
3371 .into(),
3372 )
3373 })
3374 .collect(),
3375 buffer,
3376 completions: Arc::new(RwLock::new(completions.into())),
3377 matches: Vec::new().into(),
3378 selected_item: 0,
3379 scroll_handle: UniformListScrollHandle::new(),
3380 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3381 DebouncedDelay::new(),
3382 )),
3383 };
3384 menu.filter(query.as_deref(), cx.background_executor().clone())
3385 .await;
3386
3387 if menu.matches.is_empty() {
3388 None
3389 } else {
3390 this.update(&mut cx, |editor, cx| {
3391 let completions = menu.completions.clone();
3392 let matches = menu.matches.clone();
3393
3394 let delay_ms = EditorSettings::get_global(cx)
3395 .completion_documentation_secondary_query_debounce;
3396 let delay = Duration::from_millis(delay_ms);
3397
3398 editor
3399 .completion_documentation_pre_resolve_debounce
3400 .fire_new(delay, cx, |editor, cx| {
3401 CompletionsMenu::pre_resolve_completion_documentation(
3402 completions,
3403 matches,
3404 editor,
3405 cx,
3406 )
3407 });
3408 })
3409 .ok();
3410 Some(menu)
3411 }
3412 } else {
3413 None
3414 };
3415
3416 this.update(&mut cx, |this, cx| {
3417 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3418
3419 let mut context_menu = this.context_menu.write();
3420 match context_menu.as_ref() {
3421 None => {}
3422
3423 Some(ContextMenu::Completions(prev_menu)) => {
3424 if prev_menu.id > id {
3425 return;
3426 }
3427 }
3428
3429 _ => return,
3430 }
3431
3432 if this.focus_handle.is_focused(cx) && menu.is_some() {
3433 let menu = menu.unwrap();
3434 *context_menu = Some(ContextMenu::Completions(menu));
3435 drop(context_menu);
3436 this.discard_inline_completion(cx);
3437 cx.notify();
3438 } else if this.completion_tasks.len() <= 1 {
3439 // If there are no more completion tasks and the last menu was
3440 // empty, we should hide it. If it was already hidden, we should
3441 // also show the copilot completion when available.
3442 drop(context_menu);
3443 if this.hide_context_menu(cx).is_none() {
3444 this.update_visible_inline_completion(cx);
3445 }
3446 }
3447 })?;
3448
3449 Ok::<_, anyhow::Error>(())
3450 }
3451 .log_err()
3452 });
3453
3454 self.completion_tasks.push((id, task));
3455 }
3456
3457 pub fn confirm_completion(
3458 &mut self,
3459 action: &ConfirmCompletion,
3460 cx: &mut ViewContext<Self>,
3461 ) -> Option<Task<Result<()>>> {
3462 use language::ToOffset as _;
3463
3464 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3465 menu
3466 } else {
3467 return None;
3468 };
3469
3470 let mat = completions_menu
3471 .matches
3472 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3473 let buffer_handle = completions_menu.buffer;
3474 let completions = completions_menu.completions.read();
3475 let completion = completions.get(mat.candidate_id)?;
3476 cx.stop_propagation();
3477
3478 let snippet;
3479 let text;
3480 if completion.is_snippet() {
3481 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3482 text = snippet.as_ref().unwrap().text.clone();
3483 } else {
3484 snippet = None;
3485 text = completion.new_text.clone();
3486 };
3487 let selections = self.selections.all::<usize>(cx);
3488 let buffer = buffer_handle.read(cx);
3489 let old_range = completion.old_range.to_offset(buffer);
3490 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3491
3492 let newest_selection = self.selections.newest_anchor();
3493 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3494 return None;
3495 }
3496
3497 let lookbehind = newest_selection
3498 .start
3499 .text_anchor
3500 .to_offset(buffer)
3501 .saturating_sub(old_range.start);
3502 let lookahead = old_range
3503 .end
3504 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3505 let mut common_prefix_len = old_text
3506 .bytes()
3507 .zip(text.bytes())
3508 .take_while(|(a, b)| a == b)
3509 .count();
3510
3511 let snapshot = self.buffer.read(cx).snapshot(cx);
3512 let mut range_to_replace: Option<Range<isize>> = None;
3513 let mut ranges = Vec::new();
3514 for selection in &selections {
3515 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3516 let start = selection.start.saturating_sub(lookbehind);
3517 let end = selection.end + lookahead;
3518 if selection.id == newest_selection.id {
3519 range_to_replace = Some(
3520 ((start + common_prefix_len) as isize - selection.start as isize)
3521 ..(end as isize - selection.start as isize),
3522 );
3523 }
3524 ranges.push(start + common_prefix_len..end);
3525 } else {
3526 common_prefix_len = 0;
3527 ranges.clear();
3528 ranges.extend(selections.iter().map(|s| {
3529 if s.id == newest_selection.id {
3530 range_to_replace = Some(
3531 old_range.start.to_offset_utf16(&snapshot).0 as isize
3532 - selection.start as isize
3533 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3534 - selection.start as isize,
3535 );
3536 old_range.clone()
3537 } else {
3538 s.start..s.end
3539 }
3540 }));
3541 break;
3542 }
3543 }
3544 let text = &text[common_prefix_len..];
3545
3546 cx.emit(EditorEvent::InputHandled {
3547 utf16_range_to_replace: range_to_replace,
3548 text: text.into(),
3549 });
3550
3551 self.transact(cx, |this, cx| {
3552 if let Some(mut snippet) = snippet {
3553 snippet.text = text.to_string();
3554 for tabstop in snippet.tabstops.iter_mut().flatten() {
3555 tabstop.start -= common_prefix_len as isize;
3556 tabstop.end -= common_prefix_len as isize;
3557 }
3558
3559 this.insert_snippet(&ranges, snippet, cx).log_err();
3560 } else {
3561 this.buffer.update(cx, |buffer, cx| {
3562 buffer.edit(
3563 ranges.iter().map(|range| (range.clone(), text)),
3564 this.autoindent_mode.clone(),
3565 cx,
3566 );
3567 });
3568 }
3569
3570 this.refresh_inline_completion(true, cx);
3571 });
3572
3573 let provider = self.completion_provider.as_ref()?;
3574 let apply_edits = provider.apply_additional_edits_for_completion(
3575 buffer_handle,
3576 completion.clone(),
3577 true,
3578 cx,
3579 );
3580 Some(cx.foreground_executor().spawn(async move {
3581 apply_edits.await?;
3582 Ok(())
3583 }))
3584 }
3585
3586 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3587 let mut context_menu = self.context_menu.write();
3588 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3589 *context_menu = None;
3590 cx.notify();
3591 return;
3592 }
3593 drop(context_menu);
3594
3595 let deployed_from_indicator = action.deployed_from_indicator;
3596 let mut task = self.code_actions_task.take();
3597 cx.spawn(|this, mut cx| async move {
3598 while let Some(prev_task) = task {
3599 prev_task.await;
3600 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3601 }
3602
3603 this.update(&mut cx, |this, cx| {
3604 if this.focus_handle.is_focused(cx) {
3605 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3606 this.completion_tasks.clear();
3607 this.discard_inline_completion(cx);
3608 *this.context_menu.write() =
3609 Some(ContextMenu::CodeActions(CodeActionsMenu {
3610 buffer,
3611 actions,
3612 selected_item: Default::default(),
3613 scroll_handle: UniformListScrollHandle::default(),
3614 deployed_from_indicator,
3615 }));
3616 cx.notify();
3617 }
3618 }
3619 })?;
3620
3621 Ok::<_, anyhow::Error>(())
3622 })
3623 .detach_and_log_err(cx);
3624 }
3625
3626 pub fn confirm_code_action(
3627 &mut self,
3628 action: &ConfirmCodeAction,
3629 cx: &mut ViewContext<Self>,
3630 ) -> Option<Task<Result<()>>> {
3631 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3632 menu
3633 } else {
3634 return None;
3635 };
3636 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3637 let action = actions_menu.actions.get(action_ix)?.clone();
3638 let title = action.lsp_action.title.clone();
3639 let buffer = actions_menu.buffer;
3640 let workspace = self.workspace()?;
3641
3642 let apply_code_actions = workspace
3643 .read(cx)
3644 .project()
3645 .clone()
3646 .update(cx, |project, cx| {
3647 project.apply_code_action(buffer, action, true, cx)
3648 });
3649 let workspace = workspace.downgrade();
3650 Some(cx.spawn(|editor, cx| async move {
3651 let project_transaction = apply_code_actions.await?;
3652 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3653 }))
3654 }
3655
3656 async fn open_project_transaction(
3657 this: &WeakView<Editor>,
3658 workspace: WeakView<Workspace>,
3659 transaction: ProjectTransaction,
3660 title: String,
3661 mut cx: AsyncWindowContext,
3662 ) -> Result<()> {
3663 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3664
3665 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3666 cx.update(|cx| {
3667 entries.sort_unstable_by_key(|(buffer, _)| {
3668 buffer.read(cx).file().map(|f| f.path().clone())
3669 });
3670 })?;
3671
3672 // If the project transaction's edits are all contained within this editor, then
3673 // avoid opening a new editor to display them.
3674
3675 if let Some((buffer, transaction)) = entries.first() {
3676 if entries.len() == 1 {
3677 let excerpt = this.update(&mut cx, |editor, cx| {
3678 editor
3679 .buffer()
3680 .read(cx)
3681 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3682 })?;
3683 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3684 if excerpted_buffer == *buffer {
3685 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3686 let excerpt_range = excerpt_range.to_offset(buffer);
3687 buffer
3688 .edited_ranges_for_transaction::<usize>(transaction)
3689 .all(|range| {
3690 excerpt_range.start <= range.start
3691 && excerpt_range.end >= range.end
3692 })
3693 })?;
3694
3695 if all_edits_within_excerpt {
3696 return Ok(());
3697 }
3698 }
3699 }
3700 }
3701 } else {
3702 return Ok(());
3703 }
3704
3705 let mut ranges_to_highlight = Vec::new();
3706 let excerpt_buffer = cx.new_model(|cx| {
3707 let mut multibuffer =
3708 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3709 for (buffer_handle, transaction) in &entries {
3710 let buffer = buffer_handle.read(cx);
3711 ranges_to_highlight.extend(
3712 multibuffer.push_excerpts_with_context_lines(
3713 buffer_handle.clone(),
3714 buffer
3715 .edited_ranges_for_transaction::<usize>(transaction)
3716 .collect(),
3717 1,
3718 cx,
3719 ),
3720 );
3721 }
3722 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3723 multibuffer
3724 })?;
3725
3726 workspace.update(&mut cx, |workspace, cx| {
3727 let project = workspace.project().clone();
3728 let editor =
3729 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3730 workspace.add_item_to_active_pane(Box::new(editor.clone()), cx);
3731 editor.update(cx, |editor, cx| {
3732 editor.highlight_background::<Self>(
3733 ranges_to_highlight,
3734 |theme| theme.editor_highlighted_line_background,
3735 cx,
3736 );
3737 });
3738 })?;
3739
3740 Ok(())
3741 }
3742
3743 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3744 let project = self.project.clone()?;
3745 let buffer = self.buffer.read(cx);
3746 let newest_selection = self.selections.newest_anchor().clone();
3747 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3748 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3749 if start_buffer != end_buffer {
3750 return None;
3751 }
3752
3753 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3754 cx.background_executor()
3755 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3756 .await;
3757
3758 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3759 project.code_actions(&start_buffer, start..end, cx)
3760 }) {
3761 code_actions.await.log_err()
3762 } else {
3763 None
3764 };
3765
3766 this.update(&mut cx, |this, cx| {
3767 this.available_code_actions = actions.and_then(|actions| {
3768 if actions.is_empty() {
3769 None
3770 } else {
3771 Some((start_buffer, actions.into()))
3772 }
3773 });
3774 cx.notify();
3775 })
3776 .log_err();
3777 }));
3778 None
3779 }
3780
3781 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3782 if self.pending_rename.is_some() {
3783 return None;
3784 }
3785
3786 let project = self.project.clone()?;
3787 let buffer = self.buffer.read(cx);
3788 let newest_selection = self.selections.newest_anchor().clone();
3789 let cursor_position = newest_selection.head();
3790 let (cursor_buffer, cursor_buffer_position) =
3791 buffer.text_anchor_for_position(cursor_position, cx)?;
3792 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3793 if cursor_buffer != tail_buffer {
3794 return None;
3795 }
3796
3797 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3798 cx.background_executor()
3799 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3800 .await;
3801
3802 let highlights = if let Some(highlights) = project
3803 .update(&mut cx, |project, cx| {
3804 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3805 })
3806 .log_err()
3807 {
3808 highlights.await.log_err()
3809 } else {
3810 None
3811 };
3812
3813 if let Some(highlights) = highlights {
3814 this.update(&mut cx, |this, cx| {
3815 if this.pending_rename.is_some() {
3816 return;
3817 }
3818
3819 let buffer_id = cursor_position.buffer_id;
3820 let buffer = this.buffer.read(cx);
3821 if !buffer
3822 .text_anchor_for_position(cursor_position, cx)
3823 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3824 {
3825 return;
3826 }
3827
3828 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3829 let mut write_ranges = Vec::new();
3830 let mut read_ranges = Vec::new();
3831 for highlight in highlights {
3832 for (excerpt_id, excerpt_range) in
3833 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3834 {
3835 let start = highlight
3836 .range
3837 .start
3838 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3839 let end = highlight
3840 .range
3841 .end
3842 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3843 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3844 continue;
3845 }
3846
3847 let range = Anchor {
3848 buffer_id,
3849 excerpt_id: excerpt_id,
3850 text_anchor: start,
3851 }..Anchor {
3852 buffer_id,
3853 excerpt_id,
3854 text_anchor: end,
3855 };
3856 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3857 write_ranges.push(range);
3858 } else {
3859 read_ranges.push(range);
3860 }
3861 }
3862 }
3863
3864 this.highlight_background::<DocumentHighlightRead>(
3865 read_ranges,
3866 |theme| theme.editor_document_highlight_read_background,
3867 cx,
3868 );
3869 this.highlight_background::<DocumentHighlightWrite>(
3870 write_ranges,
3871 |theme| theme.editor_document_highlight_write_background,
3872 cx,
3873 );
3874 cx.notify();
3875 })
3876 .log_err();
3877 }
3878 }));
3879 None
3880 }
3881
3882 fn refresh_inline_completion(
3883 &mut self,
3884 debounce: bool,
3885 cx: &mut ViewContext<Self>,
3886 ) -> Option<()> {
3887 let provider = self.inline_completion_provider()?;
3888 let cursor = self.selections.newest_anchor().head();
3889 let (buffer, cursor_buffer_position) =
3890 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3891 if !self.show_inline_completions
3892 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
3893 {
3894 self.clear_inline_completion(cx);
3895 return None;
3896 }
3897
3898 self.update_visible_inline_completion(cx);
3899 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
3900 Some(())
3901 }
3902
3903 fn cycle_inline_completion(
3904 &mut self,
3905 direction: Direction,
3906 cx: &mut ViewContext<Self>,
3907 ) -> Option<()> {
3908 let provider = self.inline_completion_provider()?;
3909 let cursor = self.selections.newest_anchor().head();
3910 let (buffer, cursor_buffer_position) =
3911 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3912 if !self.show_inline_completions
3913 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
3914 {
3915 return None;
3916 }
3917
3918 provider.cycle(buffer, cursor_buffer_position, direction, cx);
3919 self.update_visible_inline_completion(cx);
3920
3921 Some(())
3922 }
3923
3924 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
3925 if !self.has_active_inline_completion(cx) {
3926 self.refresh_inline_completion(false, cx);
3927 return;
3928 }
3929
3930 self.update_visible_inline_completion(cx);
3931 }
3932
3933 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3934 self.show_cursor_names(cx);
3935 }
3936
3937 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3938 self.show_cursor_names = true;
3939 cx.notify();
3940 cx.spawn(|this, mut cx| async move {
3941 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3942 this.update(&mut cx, |this, cx| {
3943 this.show_cursor_names = false;
3944 cx.notify()
3945 })
3946 .ok()
3947 })
3948 .detach();
3949 }
3950
3951 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
3952 if self.has_active_inline_completion(cx) {
3953 self.cycle_inline_completion(Direction::Next, cx);
3954 } else {
3955 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
3956 if is_copilot_disabled {
3957 cx.propagate();
3958 }
3959 }
3960 }
3961
3962 pub fn previous_inline_completion(
3963 &mut self,
3964 _: &PreviousInlineCompletion,
3965 cx: &mut ViewContext<Self>,
3966 ) {
3967 if self.has_active_inline_completion(cx) {
3968 self.cycle_inline_completion(Direction::Prev, cx);
3969 } else {
3970 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
3971 if is_copilot_disabled {
3972 cx.propagate();
3973 }
3974 }
3975 }
3976
3977 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3978 if let Some(completion) = self.take_active_inline_completion(cx) {
3979 if let Some(provider) = self.inline_completion_provider() {
3980 provider.accept(cx);
3981 }
3982
3983 cx.emit(EditorEvent::InputHandled {
3984 utf16_range_to_replace: None,
3985 text: completion.text.to_string().into(),
3986 });
3987 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
3988 cx.notify();
3989 true
3990 } else {
3991 false
3992 }
3993 }
3994
3995 pub fn accept_partial_inline_completion(
3996 &mut self,
3997 _: &AcceptPartialInlineCompletion,
3998 cx: &mut ViewContext<Self>,
3999 ) {
4000 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4001 if let Some(completion) = self.take_active_inline_completion(cx) {
4002 let mut partial_completion = completion
4003 .text
4004 .chars()
4005 .by_ref()
4006 .take_while(|c| c.is_alphabetic())
4007 .collect::<String>();
4008 if partial_completion.is_empty() {
4009 partial_completion = completion
4010 .text
4011 .chars()
4012 .by_ref()
4013 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4014 .collect::<String>();
4015 }
4016
4017 cx.emit(EditorEvent::InputHandled {
4018 utf16_range_to_replace: None,
4019 text: partial_completion.clone().into(),
4020 });
4021 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4022 self.refresh_inline_completion(true, cx);
4023 cx.notify();
4024 }
4025 }
4026 }
4027
4028 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4029 if let Some(provider) = self.inline_completion_provider() {
4030 provider.discard(cx);
4031 }
4032
4033 self.take_active_inline_completion(cx).is_some()
4034 }
4035
4036 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4037 if let Some(completion) = self.active_inline_completion.as_ref() {
4038 let buffer = self.buffer.read(cx).read(cx);
4039 completion.position.is_valid(&buffer)
4040 } else {
4041 false
4042 }
4043 }
4044
4045 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4046 let completion = self.active_inline_completion.take()?;
4047 self.display_map.update(cx, |map, cx| {
4048 map.splice_inlays(vec![completion.id], Default::default(), cx);
4049 });
4050 let buffer = self.buffer.read(cx).read(cx);
4051
4052 if completion.position.is_valid(&buffer) {
4053 Some(completion)
4054 } else {
4055 None
4056 }
4057 }
4058
4059 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4060 let selection = self.selections.newest_anchor();
4061 let cursor = selection.head();
4062
4063 if self.context_menu.read().is_none()
4064 && self.completion_tasks.is_empty()
4065 && selection.start == selection.end
4066 {
4067 if let Some(provider) = self.inline_completion_provider() {
4068 if let Some((buffer, cursor_buffer_position)) =
4069 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4070 {
4071 if let Some(text) =
4072 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4073 {
4074 let text = Rope::from(text);
4075 let mut to_remove = Vec::new();
4076 if let Some(completion) = self.active_inline_completion.take() {
4077 to_remove.push(completion.id);
4078 }
4079
4080 let completion_inlay =
4081 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4082 self.active_inline_completion = Some(completion_inlay.clone());
4083 self.display_map.update(cx, move |map, cx| {
4084 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4085 });
4086 cx.notify();
4087 return;
4088 }
4089 }
4090 }
4091 }
4092
4093 self.discard_inline_completion(cx);
4094 }
4095
4096 fn clear_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4097 if let Some(old_completion) = self.active_inline_completion.take() {
4098 self.splice_inlays(vec![old_completion.id], Vec::new(), cx);
4099 }
4100 self.discard_inline_completion(cx);
4101 }
4102
4103 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4104 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4105 }
4106
4107 pub fn render_code_actions_indicator(
4108 &self,
4109 _style: &EditorStyle,
4110 is_active: bool,
4111 cx: &mut ViewContext<Self>,
4112 ) -> Option<IconButton> {
4113 if self.available_code_actions.is_some() {
4114 Some(
4115 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4116 .icon_size(IconSize::XSmall)
4117 .size(ui::ButtonSize::None)
4118 .icon_color(Color::Muted)
4119 .selected(is_active)
4120 .on_click(cx.listener(|editor, _e, cx| {
4121 editor.toggle_code_actions(
4122 &ToggleCodeActions {
4123 deployed_from_indicator: true,
4124 },
4125 cx,
4126 );
4127 })),
4128 )
4129 } else {
4130 None
4131 }
4132 }
4133
4134 pub fn render_fold_indicators(
4135 &mut self,
4136 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4137 _style: &EditorStyle,
4138 gutter_hovered: bool,
4139 _line_height: Pixels,
4140 _gutter_margin: Pixels,
4141 cx: &mut ViewContext<Self>,
4142 ) -> Vec<Option<AnyElement>> {
4143 fold_data
4144 .iter()
4145 .enumerate()
4146 .map(|(ix, fold_data)| {
4147 fold_data
4148 .map(|(fold_status, buffer_row, active)| {
4149 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4150 IconButton::new(ix, ui::IconName::ChevronDown)
4151 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4152 FoldStatus::Folded => {
4153 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4154 }
4155 FoldStatus::Foldable => {
4156 this.fold_at(&FoldAt { buffer_row }, cx);
4157 }
4158 }))
4159 .icon_color(ui::Color::Muted)
4160 .icon_size(ui::IconSize::Small)
4161 .selected(fold_status == FoldStatus::Folded)
4162 .selected_icon(ui::IconName::ChevronRight)
4163 .size(ui::ButtonSize::None)
4164 .into_any_element()
4165 })
4166 })
4167 .flatten()
4168 })
4169 .collect()
4170 }
4171
4172 pub fn context_menu_visible(&self) -> bool {
4173 self.context_menu
4174 .read()
4175 .as_ref()
4176 .map_or(false, |menu| menu.visible())
4177 }
4178
4179 pub fn render_context_menu(
4180 &self,
4181 cursor_position: DisplayPoint,
4182 style: &EditorStyle,
4183 max_height: Pixels,
4184 cx: &mut ViewContext<Editor>,
4185 ) -> Option<(DisplayPoint, AnyElement)> {
4186 self.context_menu.read().as_ref().map(|menu| {
4187 menu.render(
4188 cursor_position,
4189 style,
4190 max_height,
4191 self.workspace.as_ref().map(|(w, _)| w.clone()),
4192 cx,
4193 )
4194 })
4195 }
4196
4197 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4198 cx.notify();
4199 self.completion_tasks.clear();
4200 let context_menu = self.context_menu.write().take();
4201 if context_menu.is_some() {
4202 self.update_visible_inline_completion(cx);
4203 }
4204 context_menu
4205 }
4206
4207 pub fn insert_snippet(
4208 &mut self,
4209 insertion_ranges: &[Range<usize>],
4210 snippet: Snippet,
4211 cx: &mut ViewContext<Self>,
4212 ) -> Result<()> {
4213 let tabstops = self.buffer.update(cx, |buffer, cx| {
4214 let snippet_text: Arc<str> = snippet.text.clone().into();
4215 buffer.edit(
4216 insertion_ranges
4217 .iter()
4218 .cloned()
4219 .map(|range| (range, snippet_text.clone())),
4220 Some(AutoindentMode::EachLine),
4221 cx,
4222 );
4223
4224 let snapshot = &*buffer.read(cx);
4225 let snippet = &snippet;
4226 snippet
4227 .tabstops
4228 .iter()
4229 .map(|tabstop| {
4230 let mut tabstop_ranges = tabstop
4231 .iter()
4232 .flat_map(|tabstop_range| {
4233 let mut delta = 0_isize;
4234 insertion_ranges.iter().map(move |insertion_range| {
4235 let insertion_start = insertion_range.start as isize + delta;
4236 delta +=
4237 snippet.text.len() as isize - insertion_range.len() as isize;
4238
4239 let start = snapshot.anchor_before(
4240 (insertion_start + tabstop_range.start) as usize,
4241 );
4242 let end = snapshot
4243 .anchor_after((insertion_start + tabstop_range.end) as usize);
4244 start..end
4245 })
4246 })
4247 .collect::<Vec<_>>();
4248 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4249 tabstop_ranges
4250 })
4251 .collect::<Vec<_>>()
4252 });
4253
4254 if let Some(tabstop) = tabstops.first() {
4255 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4256 s.select_ranges(tabstop.iter().cloned());
4257 });
4258 self.snippet_stack.push(SnippetState {
4259 active_index: 0,
4260 ranges: tabstops,
4261 });
4262
4263 // Check whether the just-entered snippet ends with an auto-closable bracket.
4264 if self.autoclose_regions.is_empty() {
4265 let snapshot = self.buffer.read(cx).snapshot(cx);
4266 for selection in &mut self.selections.all::<Point>(cx) {
4267 let selection_head = selection.head();
4268 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4269 continue;
4270 };
4271
4272 let mut bracket_pair = None;
4273 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4274 let prev_chars = snapshot
4275 .reversed_chars_at(selection_head)
4276 .collect::<String>();
4277 for (pair, enabled) in scope.brackets() {
4278 if enabled
4279 && pair.close
4280 && prev_chars.starts_with(pair.start.as_str())
4281 && next_chars.starts_with(pair.end.as_str())
4282 {
4283 bracket_pair = Some(pair.clone());
4284 break;
4285 }
4286 }
4287 if let Some(pair) = bracket_pair {
4288 let start = snapshot.anchor_after(selection_head);
4289 let end = snapshot.anchor_after(selection_head);
4290 self.autoclose_regions.push(AutocloseRegion {
4291 selection_id: selection.id,
4292 range: start..end,
4293 pair,
4294 });
4295 }
4296 }
4297 }
4298 }
4299 Ok(())
4300 }
4301
4302 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4303 self.move_to_snippet_tabstop(Bias::Right, cx)
4304 }
4305
4306 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4307 self.move_to_snippet_tabstop(Bias::Left, cx)
4308 }
4309
4310 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4311 if let Some(mut snippet) = self.snippet_stack.pop() {
4312 match bias {
4313 Bias::Left => {
4314 if snippet.active_index > 0 {
4315 snippet.active_index -= 1;
4316 } else {
4317 self.snippet_stack.push(snippet);
4318 return false;
4319 }
4320 }
4321 Bias::Right => {
4322 if snippet.active_index + 1 < snippet.ranges.len() {
4323 snippet.active_index += 1;
4324 } else {
4325 self.snippet_stack.push(snippet);
4326 return false;
4327 }
4328 }
4329 }
4330 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4331 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4332 s.select_anchor_ranges(current_ranges.iter().cloned())
4333 });
4334 // If snippet state is not at the last tabstop, push it back on the stack
4335 if snippet.active_index + 1 < snippet.ranges.len() {
4336 self.snippet_stack.push(snippet);
4337 }
4338 return true;
4339 }
4340 }
4341
4342 false
4343 }
4344
4345 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4346 self.transact(cx, |this, cx| {
4347 this.select_all(&SelectAll, cx);
4348 this.insert("", cx);
4349 });
4350 }
4351
4352 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4353 self.transact(cx, |this, cx| {
4354 this.select_autoclose_pair(cx);
4355 let mut selections = this.selections.all::<Point>(cx);
4356 if !this.selections.line_mode {
4357 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4358 for selection in &mut selections {
4359 if selection.is_empty() {
4360 let old_head = selection.head();
4361 let mut new_head =
4362 movement::left(&display_map, old_head.to_display_point(&display_map))
4363 .to_point(&display_map);
4364 if let Some((buffer, line_buffer_range)) = display_map
4365 .buffer_snapshot
4366 .buffer_line_for_row(old_head.row)
4367 {
4368 let indent_size =
4369 buffer.indent_size_for_line(line_buffer_range.start.row);
4370 let indent_len = match indent_size.kind {
4371 IndentKind::Space => {
4372 buffer.settings_at(line_buffer_range.start, cx).tab_size
4373 }
4374 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4375 };
4376 if old_head.column <= indent_size.len && old_head.column > 0 {
4377 let indent_len = indent_len.get();
4378 new_head = cmp::min(
4379 new_head,
4380 Point::new(
4381 old_head.row,
4382 ((old_head.column - 1) / indent_len) * indent_len,
4383 ),
4384 );
4385 }
4386 }
4387
4388 selection.set_head(new_head, SelectionGoal::None);
4389 }
4390 }
4391 }
4392
4393 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4394 this.insert("", cx);
4395 this.refresh_inline_completion(true, cx);
4396 });
4397 }
4398
4399 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4400 self.transact(cx, |this, cx| {
4401 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4402 let line_mode = s.line_mode;
4403 s.move_with(|map, selection| {
4404 if selection.is_empty() && !line_mode {
4405 let cursor = movement::right(map, selection.head());
4406 selection.end = cursor;
4407 selection.reversed = true;
4408 selection.goal = SelectionGoal::None;
4409 }
4410 })
4411 });
4412 this.insert("", cx);
4413 this.refresh_inline_completion(true, cx);
4414 });
4415 }
4416
4417 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4418 if self.move_to_prev_snippet_tabstop(cx) {
4419 return;
4420 }
4421
4422 self.outdent(&Outdent, cx);
4423 }
4424
4425 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4426 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4427 return;
4428 }
4429
4430 let mut selections = self.selections.all_adjusted(cx);
4431 let buffer = self.buffer.read(cx);
4432 let snapshot = buffer.snapshot(cx);
4433 let rows_iter = selections.iter().map(|s| s.head().row);
4434 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4435
4436 let mut edits = Vec::new();
4437 let mut prev_edited_row = 0;
4438 let mut row_delta = 0;
4439 for selection in &mut selections {
4440 if selection.start.row != prev_edited_row {
4441 row_delta = 0;
4442 }
4443 prev_edited_row = selection.end.row;
4444
4445 // If the selection is non-empty, then increase the indentation of the selected lines.
4446 if !selection.is_empty() {
4447 row_delta =
4448 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4449 continue;
4450 }
4451
4452 // If the selection is empty and the cursor is in the leading whitespace before the
4453 // suggested indentation, then auto-indent the line.
4454 let cursor = selection.head();
4455 let current_indent = snapshot.indent_size_for_line(cursor.row);
4456 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4457 if cursor.column < suggested_indent.len
4458 && cursor.column <= current_indent.len
4459 && current_indent.len <= suggested_indent.len
4460 {
4461 selection.start = Point::new(cursor.row, suggested_indent.len);
4462 selection.end = selection.start;
4463 if row_delta == 0 {
4464 edits.extend(Buffer::edit_for_indent_size_adjustment(
4465 cursor.row,
4466 current_indent,
4467 suggested_indent,
4468 ));
4469 row_delta = suggested_indent.len - current_indent.len;
4470 }
4471 continue;
4472 }
4473 }
4474
4475 // Accept copilot completion if there is only one selection and the cursor is not
4476 // in the leading whitespace.
4477 if self.selections.count() == 1
4478 && cursor.column >= current_indent.len
4479 && self.has_active_inline_completion(cx)
4480 {
4481 self.accept_inline_completion(cx);
4482 return;
4483 }
4484
4485 // Otherwise, insert a hard or soft tab.
4486 let settings = buffer.settings_at(cursor, cx);
4487 let tab_size = if settings.hard_tabs {
4488 IndentSize::tab()
4489 } else {
4490 let tab_size = settings.tab_size.get();
4491 let char_column = snapshot
4492 .text_for_range(Point::new(cursor.row, 0)..cursor)
4493 .flat_map(str::chars)
4494 .count()
4495 + row_delta as usize;
4496 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4497 IndentSize::spaces(chars_to_next_tab_stop)
4498 };
4499 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4500 selection.end = selection.start;
4501 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4502 row_delta += tab_size.len;
4503 }
4504
4505 self.transact(cx, |this, cx| {
4506 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4507 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4508 this.refresh_inline_completion(true, cx);
4509 });
4510 }
4511
4512 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4513 if self.read_only(cx) {
4514 return;
4515 }
4516 let mut selections = self.selections.all::<Point>(cx);
4517 let mut prev_edited_row = 0;
4518 let mut row_delta = 0;
4519 let mut edits = Vec::new();
4520 let buffer = self.buffer.read(cx);
4521 let snapshot = buffer.snapshot(cx);
4522 for selection in &mut selections {
4523 if selection.start.row != prev_edited_row {
4524 row_delta = 0;
4525 }
4526 prev_edited_row = selection.end.row;
4527
4528 row_delta =
4529 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4530 }
4531
4532 self.transact(cx, |this, cx| {
4533 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4534 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4535 });
4536 }
4537
4538 fn indent_selection(
4539 buffer: &MultiBuffer,
4540 snapshot: &MultiBufferSnapshot,
4541 selection: &mut Selection<Point>,
4542 edits: &mut Vec<(Range<Point>, String)>,
4543 delta_for_start_row: u32,
4544 cx: &AppContext,
4545 ) -> u32 {
4546 let settings = buffer.settings_at(selection.start, cx);
4547 let tab_size = settings.tab_size.get();
4548 let indent_kind = if settings.hard_tabs {
4549 IndentKind::Tab
4550 } else {
4551 IndentKind::Space
4552 };
4553 let mut start_row = selection.start.row;
4554 let mut end_row = selection.end.row + 1;
4555
4556 // If a selection ends at the beginning of a line, don't indent
4557 // that last line.
4558 if selection.end.column == 0 && selection.end.row > selection.start.row {
4559 end_row -= 1;
4560 }
4561
4562 // Avoid re-indenting a row that has already been indented by a
4563 // previous selection, but still update this selection's column
4564 // to reflect that indentation.
4565 if delta_for_start_row > 0 {
4566 start_row += 1;
4567 selection.start.column += delta_for_start_row;
4568 if selection.end.row == selection.start.row {
4569 selection.end.column += delta_for_start_row;
4570 }
4571 }
4572
4573 let mut delta_for_end_row = 0;
4574 for row in start_row..end_row {
4575 let current_indent = snapshot.indent_size_for_line(row);
4576 let indent_delta = match (current_indent.kind, indent_kind) {
4577 (IndentKind::Space, IndentKind::Space) => {
4578 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4579 IndentSize::spaces(columns_to_next_tab_stop)
4580 }
4581 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4582 (_, IndentKind::Tab) => IndentSize::tab(),
4583 };
4584
4585 let row_start = Point::new(row, 0);
4586 edits.push((
4587 row_start..row_start,
4588 indent_delta.chars().collect::<String>(),
4589 ));
4590
4591 // Update this selection's endpoints to reflect the indentation.
4592 if row == selection.start.row {
4593 selection.start.column += indent_delta.len;
4594 }
4595 if row == selection.end.row {
4596 selection.end.column += indent_delta.len;
4597 delta_for_end_row = indent_delta.len;
4598 }
4599 }
4600
4601 if selection.start.row == selection.end.row {
4602 delta_for_start_row + delta_for_end_row
4603 } else {
4604 delta_for_end_row
4605 }
4606 }
4607
4608 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4609 if self.read_only(cx) {
4610 return;
4611 }
4612 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4613 let selections = self.selections.all::<Point>(cx);
4614 let mut deletion_ranges = Vec::new();
4615 let mut last_outdent = None;
4616 {
4617 let buffer = self.buffer.read(cx);
4618 let snapshot = buffer.snapshot(cx);
4619 for selection in &selections {
4620 let settings = buffer.settings_at(selection.start, cx);
4621 let tab_size = settings.tab_size.get();
4622 let mut rows = selection.spanned_rows(false, &display_map);
4623
4624 // Avoid re-outdenting a row that has already been outdented by a
4625 // previous selection.
4626 if let Some(last_row) = last_outdent {
4627 if last_row == rows.start {
4628 rows.start += 1;
4629 }
4630 }
4631
4632 for row in rows {
4633 let indent_size = snapshot.indent_size_for_line(row);
4634 if indent_size.len > 0 {
4635 let deletion_len = match indent_size.kind {
4636 IndentKind::Space => {
4637 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4638 if columns_to_prev_tab_stop == 0 {
4639 tab_size
4640 } else {
4641 columns_to_prev_tab_stop
4642 }
4643 }
4644 IndentKind::Tab => 1,
4645 };
4646 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4647 last_outdent = Some(row);
4648 }
4649 }
4650 }
4651 }
4652
4653 self.transact(cx, |this, cx| {
4654 this.buffer.update(cx, |buffer, cx| {
4655 let empty_str: Arc<str> = "".into();
4656 buffer.edit(
4657 deletion_ranges
4658 .into_iter()
4659 .map(|range| (range, empty_str.clone())),
4660 None,
4661 cx,
4662 );
4663 });
4664 let selections = this.selections.all::<usize>(cx);
4665 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4666 });
4667 }
4668
4669 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4670 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4671 let selections = self.selections.all::<Point>(cx);
4672
4673 let mut new_cursors = Vec::new();
4674 let mut edit_ranges = Vec::new();
4675 let mut selections = selections.iter().peekable();
4676 while let Some(selection) = selections.next() {
4677 let mut rows = selection.spanned_rows(false, &display_map);
4678 let goal_display_column = selection.head().to_display_point(&display_map).column();
4679
4680 // Accumulate contiguous regions of rows that we want to delete.
4681 while let Some(next_selection) = selections.peek() {
4682 let next_rows = next_selection.spanned_rows(false, &display_map);
4683 if next_rows.start <= rows.end {
4684 rows.end = next_rows.end;
4685 selections.next().unwrap();
4686 } else {
4687 break;
4688 }
4689 }
4690
4691 let buffer = &display_map.buffer_snapshot;
4692 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4693 let edit_end;
4694 let cursor_buffer_row;
4695 if buffer.max_point().row >= rows.end {
4696 // If there's a line after the range, delete the \n from the end of the row range
4697 // and position the cursor on the next line.
4698 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4699 cursor_buffer_row = rows.end;
4700 } else {
4701 // If there isn't a line after the range, delete the \n from the line before the
4702 // start of the row range and position the cursor there.
4703 edit_start = edit_start.saturating_sub(1);
4704 edit_end = buffer.len();
4705 cursor_buffer_row = rows.start.saturating_sub(1);
4706 }
4707
4708 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4709 *cursor.column_mut() =
4710 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4711
4712 new_cursors.push((
4713 selection.id,
4714 buffer.anchor_after(cursor.to_point(&display_map)),
4715 ));
4716 edit_ranges.push(edit_start..edit_end);
4717 }
4718
4719 self.transact(cx, |this, cx| {
4720 let buffer = this.buffer.update(cx, |buffer, cx| {
4721 let empty_str: Arc<str> = "".into();
4722 buffer.edit(
4723 edit_ranges
4724 .into_iter()
4725 .map(|range| (range, empty_str.clone())),
4726 None,
4727 cx,
4728 );
4729 buffer.snapshot(cx)
4730 });
4731 let new_selections = new_cursors
4732 .into_iter()
4733 .map(|(id, cursor)| {
4734 let cursor = cursor.to_point(&buffer);
4735 Selection {
4736 id,
4737 start: cursor,
4738 end: cursor,
4739 reversed: false,
4740 goal: SelectionGoal::None,
4741 }
4742 })
4743 .collect();
4744
4745 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4746 s.select(new_selections);
4747 });
4748 });
4749 }
4750
4751 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4752 if self.read_only(cx) {
4753 return;
4754 }
4755 let mut row_ranges = Vec::<Range<u32>>::new();
4756 for selection in self.selections.all::<Point>(cx) {
4757 let start = selection.start.row;
4758 let end = if selection.start.row == selection.end.row {
4759 selection.start.row + 1
4760 } else {
4761 selection.end.row
4762 };
4763
4764 if let Some(last_row_range) = row_ranges.last_mut() {
4765 if start <= last_row_range.end {
4766 last_row_range.end = end;
4767 continue;
4768 }
4769 }
4770 row_ranges.push(start..end);
4771 }
4772
4773 let snapshot = self.buffer.read(cx).snapshot(cx);
4774 let mut cursor_positions = Vec::new();
4775 for row_range in &row_ranges {
4776 let anchor = snapshot.anchor_before(Point::new(
4777 row_range.end - 1,
4778 snapshot.line_len(row_range.end - 1),
4779 ));
4780 cursor_positions.push(anchor..anchor);
4781 }
4782
4783 self.transact(cx, |this, cx| {
4784 for row_range in row_ranges.into_iter().rev() {
4785 for row in row_range.rev() {
4786 let end_of_line = Point::new(row, snapshot.line_len(row));
4787 let indent = snapshot.indent_size_for_line(row + 1);
4788 let start_of_next_line = Point::new(row + 1, indent.len);
4789
4790 let replace = if snapshot.line_len(row + 1) > indent.len {
4791 " "
4792 } else {
4793 ""
4794 };
4795
4796 this.buffer.update(cx, |buffer, cx| {
4797 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4798 });
4799 }
4800 }
4801
4802 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4803 s.select_anchor_ranges(cursor_positions)
4804 });
4805 });
4806 }
4807
4808 pub fn sort_lines_case_sensitive(
4809 &mut self,
4810 _: &SortLinesCaseSensitive,
4811 cx: &mut ViewContext<Self>,
4812 ) {
4813 self.manipulate_lines(cx, |lines| lines.sort())
4814 }
4815
4816 pub fn sort_lines_case_insensitive(
4817 &mut self,
4818 _: &SortLinesCaseInsensitive,
4819 cx: &mut ViewContext<Self>,
4820 ) {
4821 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4822 }
4823
4824 pub fn unique_lines_case_insensitive(
4825 &mut self,
4826 _: &UniqueLinesCaseInsensitive,
4827 cx: &mut ViewContext<Self>,
4828 ) {
4829 self.manipulate_lines(cx, |lines| {
4830 let mut seen = HashSet::default();
4831 lines.retain(|line| seen.insert(line.to_lowercase()));
4832 })
4833 }
4834
4835 pub fn unique_lines_case_sensitive(
4836 &mut self,
4837 _: &UniqueLinesCaseSensitive,
4838 cx: &mut ViewContext<Self>,
4839 ) {
4840 self.manipulate_lines(cx, |lines| {
4841 let mut seen = HashSet::default();
4842 lines.retain(|line| seen.insert(*line));
4843 })
4844 }
4845
4846 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
4847 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
4848 if !revert_changes.is_empty() {
4849 self.transact(cx, |editor, cx| {
4850 editor.buffer().update(cx, |multi_buffer, cx| {
4851 for (buffer_id, buffer_revert_ranges) in revert_changes {
4852 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
4853 buffer.update(cx, |buffer, cx| {
4854 buffer.edit(buffer_revert_ranges, None, cx);
4855 });
4856 }
4857 }
4858 });
4859 editor.change_selections(None, cx, |selections| selections.refresh());
4860 });
4861 }
4862 }
4863
4864 fn gather_revert_changes(
4865 &mut self,
4866 selections: &[Selection<Anchor>],
4867 cx: &mut ViewContext<'_, Editor>,
4868 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>> {
4869 let mut revert_changes = HashMap::default();
4870 self.buffer.update(cx, |multi_buffer, cx| {
4871 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4872 let selected_multi_buffer_rows = selections.iter().map(|selection| {
4873 let head = selection.head();
4874 let tail = selection.tail();
4875 let start = tail.to_point(&multi_buffer_snapshot).row;
4876 let end = head.to_point(&multi_buffer_snapshot).row;
4877 if start > end {
4878 end..start
4879 } else {
4880 start..end
4881 }
4882 });
4883
4884 let mut processed_buffer_rows =
4885 HashMap::<BufferId, HashSet<Range<text::Anchor>>>::default();
4886 for selected_multi_buffer_rows in selected_multi_buffer_rows {
4887 let query_rows =
4888 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
4889 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
4890 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
4891 // when the caret is just above or just below the deleted hunk.
4892 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
4893 let related_to_selection = if allow_adjacent {
4894 hunk.associated_range.overlaps(&query_rows)
4895 || hunk.associated_range.start == query_rows.end
4896 || hunk.associated_range.end == query_rows.start
4897 } else {
4898 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
4899 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
4900 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
4901 || selected_multi_buffer_rows.end == hunk.associated_range.start
4902 };
4903 if related_to_selection {
4904 if !processed_buffer_rows
4905 .entry(hunk.buffer_id)
4906 .or_default()
4907 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
4908 {
4909 continue;
4910 }
4911 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
4912 }
4913 }
4914 }
4915 });
4916 revert_changes
4917 }
4918
4919 fn prepare_revert_change(
4920 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>>,
4921 multi_buffer: &MultiBuffer,
4922 hunk: &DiffHunk<u32>,
4923 cx: &mut AppContext,
4924 ) -> Option<()> {
4925 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
4926 let buffer = buffer.read(cx);
4927 let original_text = buffer.diff_base()?.get(hunk.diff_base_byte_range.clone())?;
4928 let buffer_snapshot = buffer.snapshot();
4929 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
4930 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
4931 probe
4932 .0
4933 .start
4934 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
4935 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
4936 .then(probe.1.as_ref().cmp(original_text))
4937 }) {
4938 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), Arc::from(original_text)));
4939 Some(())
4940 } else {
4941 None
4942 }
4943 }
4944
4945 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4946 self.manipulate_lines(cx, |lines| lines.reverse())
4947 }
4948
4949 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4950 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4951 }
4952
4953 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4954 where
4955 Fn: FnMut(&mut Vec<&str>),
4956 {
4957 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4958 let buffer = self.buffer.read(cx).snapshot(cx);
4959
4960 let mut edits = Vec::new();
4961
4962 let selections = self.selections.all::<Point>(cx);
4963 let mut selections = selections.iter().peekable();
4964 let mut contiguous_row_selections = Vec::new();
4965 let mut new_selections = Vec::new();
4966 let mut added_lines = 0;
4967 let mut removed_lines = 0;
4968
4969 while let Some(selection) = selections.next() {
4970 let (start_row, end_row) = consume_contiguous_rows(
4971 &mut contiguous_row_selections,
4972 selection,
4973 &display_map,
4974 &mut selections,
4975 );
4976
4977 let start_point = Point::new(start_row, 0);
4978 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4979 let text = buffer
4980 .text_for_range(start_point..end_point)
4981 .collect::<String>();
4982
4983 let mut lines = text.split('\n').collect_vec();
4984
4985 let lines_before = lines.len();
4986 callback(&mut lines);
4987 let lines_after = lines.len();
4988
4989 edits.push((start_point..end_point, lines.join("\n")));
4990
4991 // Selections must change based on added and removed line count
4992 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
4993 let end_row = start_row + lines_after.saturating_sub(1) as u32;
4994 new_selections.push(Selection {
4995 id: selection.id,
4996 start: start_row,
4997 end: end_row,
4998 goal: SelectionGoal::None,
4999 reversed: selection.reversed,
5000 });
5001
5002 if lines_after > lines_before {
5003 added_lines += lines_after - lines_before;
5004 } else if lines_before > lines_after {
5005 removed_lines += lines_before - lines_after;
5006 }
5007 }
5008
5009 self.transact(cx, |this, cx| {
5010 let buffer = this.buffer.update(cx, |buffer, cx| {
5011 buffer.edit(edits, None, cx);
5012 buffer.snapshot(cx)
5013 });
5014
5015 // Recalculate offsets on newly edited buffer
5016 let new_selections = new_selections
5017 .iter()
5018 .map(|s| {
5019 let start_point = Point::new(s.start, 0);
5020 let end_point = Point::new(s.end, buffer.line_len(s.end));
5021 Selection {
5022 id: s.id,
5023 start: buffer.point_to_offset(start_point),
5024 end: buffer.point_to_offset(end_point),
5025 goal: s.goal,
5026 reversed: s.reversed,
5027 }
5028 })
5029 .collect();
5030
5031 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5032 s.select(new_selections);
5033 });
5034
5035 this.request_autoscroll(Autoscroll::fit(), cx);
5036 });
5037 }
5038
5039 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5040 self.manipulate_text(cx, |text| text.to_uppercase())
5041 }
5042
5043 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5044 self.manipulate_text(cx, |text| text.to_lowercase())
5045 }
5046
5047 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5048 self.manipulate_text(cx, |text| {
5049 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5050 // https://github.com/rutrum/convert-case/issues/16
5051 text.split('\n')
5052 .map(|line| line.to_case(Case::Title))
5053 .join("\n")
5054 })
5055 }
5056
5057 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5058 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5059 }
5060
5061 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5062 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5063 }
5064
5065 pub fn convert_to_upper_camel_case(
5066 &mut self,
5067 _: &ConvertToUpperCamelCase,
5068 cx: &mut ViewContext<Self>,
5069 ) {
5070 self.manipulate_text(cx, |text| {
5071 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5072 // https://github.com/rutrum/convert-case/issues/16
5073 text.split('\n')
5074 .map(|line| line.to_case(Case::UpperCamel))
5075 .join("\n")
5076 })
5077 }
5078
5079 pub fn convert_to_lower_camel_case(
5080 &mut self,
5081 _: &ConvertToLowerCamelCase,
5082 cx: &mut ViewContext<Self>,
5083 ) {
5084 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5085 }
5086
5087 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5088 where
5089 Fn: FnMut(&str) -> String,
5090 {
5091 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5092 let buffer = self.buffer.read(cx).snapshot(cx);
5093
5094 let mut new_selections = Vec::new();
5095 let mut edits = Vec::new();
5096 let mut selection_adjustment = 0i32;
5097
5098 for selection in self.selections.all::<usize>(cx) {
5099 let selection_is_empty = selection.is_empty();
5100
5101 let (start, end) = if selection_is_empty {
5102 let word_range = movement::surrounding_word(
5103 &display_map,
5104 selection.start.to_display_point(&display_map),
5105 );
5106 let start = word_range.start.to_offset(&display_map, Bias::Left);
5107 let end = word_range.end.to_offset(&display_map, Bias::Left);
5108 (start, end)
5109 } else {
5110 (selection.start, selection.end)
5111 };
5112
5113 let text = buffer.text_for_range(start..end).collect::<String>();
5114 let old_length = text.len() as i32;
5115 let text = callback(&text);
5116
5117 new_selections.push(Selection {
5118 start: (start as i32 - selection_adjustment) as usize,
5119 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5120 goal: SelectionGoal::None,
5121 ..selection
5122 });
5123
5124 selection_adjustment += old_length - text.len() as i32;
5125
5126 edits.push((start..end, text));
5127 }
5128
5129 self.transact(cx, |this, cx| {
5130 this.buffer.update(cx, |buffer, cx| {
5131 buffer.edit(edits, None, cx);
5132 });
5133
5134 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5135 s.select(new_selections);
5136 });
5137
5138 this.request_autoscroll(Autoscroll::fit(), cx);
5139 });
5140 }
5141
5142 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5143 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5144 let buffer = &display_map.buffer_snapshot;
5145 let selections = self.selections.all::<Point>(cx);
5146
5147 let mut edits = Vec::new();
5148 let mut selections_iter = selections.iter().peekable();
5149 while let Some(selection) = selections_iter.next() {
5150 // Avoid duplicating the same lines twice.
5151 let mut rows = selection.spanned_rows(false, &display_map);
5152
5153 while let Some(next_selection) = selections_iter.peek() {
5154 let next_rows = next_selection.spanned_rows(false, &display_map);
5155 if next_rows.start < rows.end {
5156 rows.end = next_rows.end;
5157 selections_iter.next().unwrap();
5158 } else {
5159 break;
5160 }
5161 }
5162
5163 // Copy the text from the selected row region and splice it either at the start
5164 // or end of the region.
5165 let start = Point::new(rows.start, 0);
5166 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5167 let text = buffer
5168 .text_for_range(start..end)
5169 .chain(Some("\n"))
5170 .collect::<String>();
5171 let insert_location = if upwards {
5172 Point::new(rows.end, 0)
5173 } else {
5174 start
5175 };
5176 edits.push((insert_location..insert_location, text));
5177 }
5178
5179 self.transact(cx, |this, cx| {
5180 this.buffer.update(cx, |buffer, cx| {
5181 buffer.edit(edits, None, cx);
5182 });
5183
5184 this.request_autoscroll(Autoscroll::fit(), cx);
5185 });
5186 }
5187
5188 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5189 self.duplicate_line(true, cx);
5190 }
5191
5192 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5193 self.duplicate_line(false, cx);
5194 }
5195
5196 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5197 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5198 let buffer = self.buffer.read(cx).snapshot(cx);
5199
5200 let mut edits = Vec::new();
5201 let mut unfold_ranges = Vec::new();
5202 let mut refold_ranges = Vec::new();
5203
5204 let selections = self.selections.all::<Point>(cx);
5205 let mut selections = selections.iter().peekable();
5206 let mut contiguous_row_selections = Vec::new();
5207 let mut new_selections = Vec::new();
5208
5209 while let Some(selection) = selections.next() {
5210 // Find all the selections that span a contiguous row range
5211 let (start_row, end_row) = consume_contiguous_rows(
5212 &mut contiguous_row_selections,
5213 selection,
5214 &display_map,
5215 &mut selections,
5216 );
5217
5218 // Move the text spanned by the row range to be before the line preceding the row range
5219 if start_row > 0 {
5220 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5221 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5222 let insertion_point = display_map
5223 .prev_line_boundary(Point::new(start_row - 1, 0))
5224 .0;
5225
5226 // Don't move lines across excerpts
5227 if buffer
5228 .excerpt_boundaries_in_range((
5229 Bound::Excluded(insertion_point),
5230 Bound::Included(range_to_move.end),
5231 ))
5232 .next()
5233 .is_none()
5234 {
5235 let text = buffer
5236 .text_for_range(range_to_move.clone())
5237 .flat_map(|s| s.chars())
5238 .skip(1)
5239 .chain(['\n'])
5240 .collect::<String>();
5241
5242 edits.push((
5243 buffer.anchor_after(range_to_move.start)
5244 ..buffer.anchor_before(range_to_move.end),
5245 String::new(),
5246 ));
5247 let insertion_anchor = buffer.anchor_after(insertion_point);
5248 edits.push((insertion_anchor..insertion_anchor, text));
5249
5250 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5251
5252 // Move selections up
5253 new_selections.extend(contiguous_row_selections.drain(..).map(
5254 |mut selection| {
5255 selection.start.row -= row_delta;
5256 selection.end.row -= row_delta;
5257 selection
5258 },
5259 ));
5260
5261 // Move folds up
5262 unfold_ranges.push(range_to_move.clone());
5263 for fold in display_map.folds_in_range(
5264 buffer.anchor_before(range_to_move.start)
5265 ..buffer.anchor_after(range_to_move.end),
5266 ) {
5267 let mut start = fold.range.start.to_point(&buffer);
5268 let mut end = fold.range.end.to_point(&buffer);
5269 start.row -= row_delta;
5270 end.row -= row_delta;
5271 refold_ranges.push(start..end);
5272 }
5273 }
5274 }
5275
5276 // If we didn't move line(s), preserve the existing selections
5277 new_selections.append(&mut contiguous_row_selections);
5278 }
5279
5280 self.transact(cx, |this, cx| {
5281 this.unfold_ranges(unfold_ranges, true, true, cx);
5282 this.buffer.update(cx, |buffer, cx| {
5283 for (range, text) in edits {
5284 buffer.edit([(range, text)], None, cx);
5285 }
5286 });
5287 this.fold_ranges(refold_ranges, true, cx);
5288 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5289 s.select(new_selections);
5290 })
5291 });
5292 }
5293
5294 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5295 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5296 let buffer = self.buffer.read(cx).snapshot(cx);
5297
5298 let mut edits = Vec::new();
5299 let mut unfold_ranges = Vec::new();
5300 let mut refold_ranges = Vec::new();
5301
5302 let selections = self.selections.all::<Point>(cx);
5303 let mut selections = selections.iter().peekable();
5304 let mut contiguous_row_selections = Vec::new();
5305 let mut new_selections = Vec::new();
5306
5307 while let Some(selection) = selections.next() {
5308 // Find all the selections that span a contiguous row range
5309 let (start_row, end_row) = consume_contiguous_rows(
5310 &mut contiguous_row_selections,
5311 selection,
5312 &display_map,
5313 &mut selections,
5314 );
5315
5316 // Move the text spanned by the row range to be after the last line of the row range
5317 if end_row <= buffer.max_point().row {
5318 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5319 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5320
5321 // Don't move lines across excerpt boundaries
5322 if buffer
5323 .excerpt_boundaries_in_range((
5324 Bound::Excluded(range_to_move.start),
5325 Bound::Included(insertion_point),
5326 ))
5327 .next()
5328 .is_none()
5329 {
5330 let mut text = String::from("\n");
5331 text.extend(buffer.text_for_range(range_to_move.clone()));
5332 text.pop(); // Drop trailing newline
5333 edits.push((
5334 buffer.anchor_after(range_to_move.start)
5335 ..buffer.anchor_before(range_to_move.end),
5336 String::new(),
5337 ));
5338 let insertion_anchor = buffer.anchor_after(insertion_point);
5339 edits.push((insertion_anchor..insertion_anchor, text));
5340
5341 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5342
5343 // Move selections down
5344 new_selections.extend(contiguous_row_selections.drain(..).map(
5345 |mut selection| {
5346 selection.start.row += row_delta;
5347 selection.end.row += row_delta;
5348 selection
5349 },
5350 ));
5351
5352 // Move folds down
5353 unfold_ranges.push(range_to_move.clone());
5354 for fold in display_map.folds_in_range(
5355 buffer.anchor_before(range_to_move.start)
5356 ..buffer.anchor_after(range_to_move.end),
5357 ) {
5358 let mut start = fold.range.start.to_point(&buffer);
5359 let mut end = fold.range.end.to_point(&buffer);
5360 start.row += row_delta;
5361 end.row += row_delta;
5362 refold_ranges.push(start..end);
5363 }
5364 }
5365 }
5366
5367 // If we didn't move line(s), preserve the existing selections
5368 new_selections.append(&mut contiguous_row_selections);
5369 }
5370
5371 self.transact(cx, |this, cx| {
5372 this.unfold_ranges(unfold_ranges, true, true, cx);
5373 this.buffer.update(cx, |buffer, cx| {
5374 for (range, text) in edits {
5375 buffer.edit([(range, text)], None, cx);
5376 }
5377 });
5378 this.fold_ranges(refold_ranges, true, cx);
5379 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5380 });
5381 }
5382
5383 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5384 let text_layout_details = &self.text_layout_details(cx);
5385 self.transact(cx, |this, cx| {
5386 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5387 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5388 let line_mode = s.line_mode;
5389 s.move_with(|display_map, selection| {
5390 if !selection.is_empty() || line_mode {
5391 return;
5392 }
5393
5394 let mut head = selection.head();
5395 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5396 if head.column() == display_map.line_len(head.row()) {
5397 transpose_offset = display_map
5398 .buffer_snapshot
5399 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5400 }
5401
5402 if transpose_offset == 0 {
5403 return;
5404 }
5405
5406 *head.column_mut() += 1;
5407 head = display_map.clip_point(head, Bias::Right);
5408 let goal = SelectionGoal::HorizontalPosition(
5409 display_map
5410 .x_for_display_point(head, &text_layout_details)
5411 .into(),
5412 );
5413 selection.collapse_to(head, goal);
5414
5415 let transpose_start = display_map
5416 .buffer_snapshot
5417 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5418 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5419 let transpose_end = display_map
5420 .buffer_snapshot
5421 .clip_offset(transpose_offset + 1, Bias::Right);
5422 if let Some(ch) =
5423 display_map.buffer_snapshot.chars_at(transpose_start).next()
5424 {
5425 edits.push((transpose_start..transpose_offset, String::new()));
5426 edits.push((transpose_end..transpose_end, ch.to_string()));
5427 }
5428 }
5429 });
5430 edits
5431 });
5432 this.buffer
5433 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5434 let selections = this.selections.all::<usize>(cx);
5435 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5436 s.select(selections);
5437 });
5438 });
5439 }
5440
5441 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5442 let mut text = String::new();
5443 let buffer = self.buffer.read(cx).snapshot(cx);
5444 let mut selections = self.selections.all::<Point>(cx);
5445 let mut clipboard_selections = Vec::with_capacity(selections.len());
5446 {
5447 let max_point = buffer.max_point();
5448 let mut is_first = true;
5449 for selection in &mut selections {
5450 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5451 if is_entire_line {
5452 selection.start = Point::new(selection.start.row, 0);
5453 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5454 selection.goal = SelectionGoal::None;
5455 }
5456 if is_first {
5457 is_first = false;
5458 } else {
5459 text += "\n";
5460 }
5461 let mut len = 0;
5462 for chunk in buffer.text_for_range(selection.start..selection.end) {
5463 text.push_str(chunk);
5464 len += chunk.len();
5465 }
5466 clipboard_selections.push(ClipboardSelection {
5467 len,
5468 is_entire_line,
5469 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5470 });
5471 }
5472 }
5473
5474 self.transact(cx, |this, cx| {
5475 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5476 s.select(selections);
5477 });
5478 this.insert("", cx);
5479 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5480 });
5481 }
5482
5483 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5484 let selections = self.selections.all::<Point>(cx);
5485 let buffer = self.buffer.read(cx).read(cx);
5486 let mut text = String::new();
5487
5488 let mut clipboard_selections = Vec::with_capacity(selections.len());
5489 {
5490 let max_point = buffer.max_point();
5491 let mut is_first = true;
5492 for selection in selections.iter() {
5493 let mut start = selection.start;
5494 let mut end = selection.end;
5495 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5496 if is_entire_line {
5497 start = Point::new(start.row, 0);
5498 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5499 }
5500 if is_first {
5501 is_first = false;
5502 } else {
5503 text += "\n";
5504 }
5505 let mut len = 0;
5506 for chunk in buffer.text_for_range(start..end) {
5507 text.push_str(chunk);
5508 len += chunk.len();
5509 }
5510 clipboard_selections.push(ClipboardSelection {
5511 len,
5512 is_entire_line,
5513 first_line_indent: buffer.indent_size_for_line(start.row).len,
5514 });
5515 }
5516 }
5517
5518 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5519 }
5520
5521 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5522 if self.read_only(cx) {
5523 return;
5524 }
5525
5526 self.transact(cx, |this, cx| {
5527 if let Some(item) = cx.read_from_clipboard() {
5528 let clipboard_text = Cow::Borrowed(item.text());
5529 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5530 let old_selections = this.selections.all::<usize>(cx);
5531 let all_selections_were_entire_line =
5532 clipboard_selections.iter().all(|s| s.is_entire_line);
5533 let first_selection_indent_column =
5534 clipboard_selections.first().map(|s| s.first_line_indent);
5535 if clipboard_selections.len() != old_selections.len() {
5536 clipboard_selections.drain(..);
5537 }
5538
5539 this.buffer.update(cx, |buffer, cx| {
5540 let snapshot = buffer.read(cx);
5541 let mut start_offset = 0;
5542 let mut edits = Vec::new();
5543 let mut original_indent_columns = Vec::new();
5544 let line_mode = this.selections.line_mode;
5545 for (ix, selection) in old_selections.iter().enumerate() {
5546 let to_insert;
5547 let entire_line;
5548 let original_indent_column;
5549 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5550 let end_offset = start_offset + clipboard_selection.len;
5551 to_insert = &clipboard_text[start_offset..end_offset];
5552 entire_line = clipboard_selection.is_entire_line;
5553 start_offset = end_offset + 1;
5554 original_indent_column =
5555 Some(clipboard_selection.first_line_indent);
5556 } else {
5557 to_insert = clipboard_text.as_str();
5558 entire_line = all_selections_were_entire_line;
5559 original_indent_column = first_selection_indent_column
5560 }
5561
5562 // If the corresponding selection was empty when this slice of the
5563 // clipboard text was written, then the entire line containing the
5564 // selection was copied. If this selection is also currently empty,
5565 // then paste the line before the current line of the buffer.
5566 let range = if selection.is_empty() && !line_mode && entire_line {
5567 let column = selection.start.to_point(&snapshot).column as usize;
5568 let line_start = selection.start - column;
5569 line_start..line_start
5570 } else {
5571 selection.range()
5572 };
5573
5574 edits.push((range, to_insert));
5575 original_indent_columns.extend(original_indent_column);
5576 }
5577 drop(snapshot);
5578
5579 buffer.edit(
5580 edits,
5581 Some(AutoindentMode::Block {
5582 original_indent_columns,
5583 }),
5584 cx,
5585 );
5586 });
5587
5588 let selections = this.selections.all::<usize>(cx);
5589 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5590 } else {
5591 this.insert(&clipboard_text, cx);
5592 }
5593 }
5594 });
5595 }
5596
5597 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5598 if self.read_only(cx) {
5599 return;
5600 }
5601
5602 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5603 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5604 self.change_selections(None, cx, |s| {
5605 s.select_anchors(selections.to_vec());
5606 });
5607 }
5608 self.request_autoscroll(Autoscroll::fit(), cx);
5609 self.unmark_text(cx);
5610 self.refresh_inline_completion(true, cx);
5611 cx.emit(EditorEvent::Edited);
5612 cx.emit(EditorEvent::TransactionUndone {
5613 transaction_id: tx_id,
5614 });
5615 }
5616 }
5617
5618 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5619 if self.read_only(cx) {
5620 return;
5621 }
5622
5623 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5624 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5625 {
5626 self.change_selections(None, cx, |s| {
5627 s.select_anchors(selections.to_vec());
5628 });
5629 }
5630 self.request_autoscroll(Autoscroll::fit(), cx);
5631 self.unmark_text(cx);
5632 self.refresh_inline_completion(true, cx);
5633 cx.emit(EditorEvent::Edited);
5634 }
5635 }
5636
5637 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5638 self.buffer
5639 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5640 }
5641
5642 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
5643 self.buffer
5644 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
5645 }
5646
5647 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5648 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5649 let line_mode = s.line_mode;
5650 s.move_with(|map, selection| {
5651 let cursor = if selection.is_empty() && !line_mode {
5652 movement::left(map, selection.start)
5653 } else {
5654 selection.start
5655 };
5656 selection.collapse_to(cursor, SelectionGoal::None);
5657 });
5658 })
5659 }
5660
5661 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5662 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5663 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5664 })
5665 }
5666
5667 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5668 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5669 let line_mode = s.line_mode;
5670 s.move_with(|map, selection| {
5671 let cursor = if selection.is_empty() && !line_mode {
5672 movement::right(map, selection.end)
5673 } else {
5674 selection.end
5675 };
5676 selection.collapse_to(cursor, SelectionGoal::None)
5677 });
5678 })
5679 }
5680
5681 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5682 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5683 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5684 })
5685 }
5686
5687 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5688 if self.take_rename(true, cx).is_some() {
5689 return;
5690 }
5691
5692 if matches!(self.mode, EditorMode::SingleLine) {
5693 cx.propagate();
5694 return;
5695 }
5696
5697 let text_layout_details = &self.text_layout_details(cx);
5698
5699 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5700 let line_mode = s.line_mode;
5701 s.move_with(|map, selection| {
5702 if !selection.is_empty() && !line_mode {
5703 selection.goal = SelectionGoal::None;
5704 }
5705 let (cursor, goal) = movement::up(
5706 map,
5707 selection.start,
5708 selection.goal,
5709 false,
5710 &text_layout_details,
5711 );
5712 selection.collapse_to(cursor, goal);
5713 });
5714 })
5715 }
5716
5717 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5718 if self.take_rename(true, cx).is_some() {
5719 return;
5720 }
5721
5722 if matches!(self.mode, EditorMode::SingleLine) {
5723 cx.propagate();
5724 return;
5725 }
5726
5727 let text_layout_details = &self.text_layout_details(cx);
5728
5729 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5730 let line_mode = s.line_mode;
5731 s.move_with(|map, selection| {
5732 if !selection.is_empty() && !line_mode {
5733 selection.goal = SelectionGoal::None;
5734 }
5735 let (cursor, goal) = movement::up_by_rows(
5736 map,
5737 selection.start,
5738 action.lines,
5739 selection.goal,
5740 false,
5741 &text_layout_details,
5742 );
5743 selection.collapse_to(cursor, goal);
5744 });
5745 })
5746 }
5747
5748 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5749 if self.take_rename(true, cx).is_some() {
5750 return;
5751 }
5752
5753 if matches!(self.mode, EditorMode::SingleLine) {
5754 cx.propagate();
5755 return;
5756 }
5757
5758 let text_layout_details = &self.text_layout_details(cx);
5759
5760 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5761 let line_mode = s.line_mode;
5762 s.move_with(|map, selection| {
5763 if !selection.is_empty() && !line_mode {
5764 selection.goal = SelectionGoal::None;
5765 }
5766 let (cursor, goal) = movement::down_by_rows(
5767 map,
5768 selection.start,
5769 action.lines,
5770 selection.goal,
5771 false,
5772 &text_layout_details,
5773 );
5774 selection.collapse_to(cursor, goal);
5775 });
5776 })
5777 }
5778
5779 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5780 let text_layout_details = &self.text_layout_details(cx);
5781 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5782 s.move_heads_with(|map, head, goal| {
5783 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5784 })
5785 })
5786 }
5787
5788 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5789 let text_layout_details = &self.text_layout_details(cx);
5790 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5791 s.move_heads_with(|map, head, goal| {
5792 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5793 })
5794 })
5795 }
5796
5797 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5798 if self.take_rename(true, cx).is_some() {
5799 return;
5800 }
5801
5802 if matches!(self.mode, EditorMode::SingleLine) {
5803 cx.propagate();
5804 return;
5805 }
5806
5807 let row_count = if let Some(row_count) = self.visible_line_count() {
5808 row_count as u32 - 1
5809 } else {
5810 return;
5811 };
5812
5813 let autoscroll = if action.center_cursor {
5814 Autoscroll::center()
5815 } else {
5816 Autoscroll::fit()
5817 };
5818
5819 let text_layout_details = &self.text_layout_details(cx);
5820
5821 self.change_selections(Some(autoscroll), cx, |s| {
5822 let line_mode = s.line_mode;
5823 s.move_with(|map, selection| {
5824 if !selection.is_empty() && !line_mode {
5825 selection.goal = SelectionGoal::None;
5826 }
5827 let (cursor, goal) = movement::up_by_rows(
5828 map,
5829 selection.end,
5830 row_count,
5831 selection.goal,
5832 false,
5833 &text_layout_details,
5834 );
5835 selection.collapse_to(cursor, goal);
5836 });
5837 });
5838 }
5839
5840 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5841 let text_layout_details = &self.text_layout_details(cx);
5842 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5843 s.move_heads_with(|map, head, goal| {
5844 movement::up(map, head, goal, false, &text_layout_details)
5845 })
5846 })
5847 }
5848
5849 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5850 self.take_rename(true, cx);
5851
5852 if self.mode == EditorMode::SingleLine {
5853 cx.propagate();
5854 return;
5855 }
5856
5857 let text_layout_details = &self.text_layout_details(cx);
5858 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5859 let line_mode = s.line_mode;
5860 s.move_with(|map, selection| {
5861 if !selection.is_empty() && !line_mode {
5862 selection.goal = SelectionGoal::None;
5863 }
5864 let (cursor, goal) = movement::down(
5865 map,
5866 selection.end,
5867 selection.goal,
5868 false,
5869 &text_layout_details,
5870 );
5871 selection.collapse_to(cursor, goal);
5872 });
5873 });
5874 }
5875
5876 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5877 if self.take_rename(true, cx).is_some() {
5878 return;
5879 }
5880
5881 if self
5882 .context_menu
5883 .write()
5884 .as_mut()
5885 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5886 .unwrap_or(false)
5887 {
5888 return;
5889 }
5890
5891 if matches!(self.mode, EditorMode::SingleLine) {
5892 cx.propagate();
5893 return;
5894 }
5895
5896 let row_count = if let Some(row_count) = self.visible_line_count() {
5897 row_count as u32 - 1
5898 } else {
5899 return;
5900 };
5901
5902 let autoscroll = if action.center_cursor {
5903 Autoscroll::center()
5904 } else {
5905 Autoscroll::fit()
5906 };
5907
5908 let text_layout_details = &self.text_layout_details(cx);
5909 self.change_selections(Some(autoscroll), cx, |s| {
5910 let line_mode = s.line_mode;
5911 s.move_with(|map, selection| {
5912 if !selection.is_empty() && !line_mode {
5913 selection.goal = SelectionGoal::None;
5914 }
5915 let (cursor, goal) = movement::down_by_rows(
5916 map,
5917 selection.end,
5918 row_count,
5919 selection.goal,
5920 false,
5921 &text_layout_details,
5922 );
5923 selection.collapse_to(cursor, goal);
5924 });
5925 });
5926 }
5927
5928 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5929 let text_layout_details = &self.text_layout_details(cx);
5930 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5931 s.move_heads_with(|map, head, goal| {
5932 movement::down(map, head, goal, false, &text_layout_details)
5933 })
5934 });
5935 }
5936
5937 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5938 if let Some(context_menu) = self.context_menu.write().as_mut() {
5939 context_menu.select_first(self.project.as_ref(), cx);
5940 }
5941 }
5942
5943 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5944 if let Some(context_menu) = self.context_menu.write().as_mut() {
5945 context_menu.select_prev(self.project.as_ref(), cx);
5946 }
5947 }
5948
5949 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5950 if let Some(context_menu) = self.context_menu.write().as_mut() {
5951 context_menu.select_next(self.project.as_ref(), cx);
5952 }
5953 }
5954
5955 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5956 if let Some(context_menu) = self.context_menu.write().as_mut() {
5957 context_menu.select_last(self.project.as_ref(), cx);
5958 }
5959 }
5960
5961 pub fn move_to_previous_word_start(
5962 &mut self,
5963 _: &MoveToPreviousWordStart,
5964 cx: &mut ViewContext<Self>,
5965 ) {
5966 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5967 s.move_cursors_with(|map, head, _| {
5968 (
5969 movement::previous_word_start(map, head),
5970 SelectionGoal::None,
5971 )
5972 });
5973 })
5974 }
5975
5976 pub fn move_to_previous_subword_start(
5977 &mut self,
5978 _: &MoveToPreviousSubwordStart,
5979 cx: &mut ViewContext<Self>,
5980 ) {
5981 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5982 s.move_cursors_with(|map, head, _| {
5983 (
5984 movement::previous_subword_start(map, head),
5985 SelectionGoal::None,
5986 )
5987 });
5988 })
5989 }
5990
5991 pub fn select_to_previous_word_start(
5992 &mut self,
5993 _: &SelectToPreviousWordStart,
5994 cx: &mut ViewContext<Self>,
5995 ) {
5996 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5997 s.move_heads_with(|map, head, _| {
5998 (
5999 movement::previous_word_start(map, head),
6000 SelectionGoal::None,
6001 )
6002 });
6003 })
6004 }
6005
6006 pub fn select_to_previous_subword_start(
6007 &mut self,
6008 _: &SelectToPreviousSubwordStart,
6009 cx: &mut ViewContext<Self>,
6010 ) {
6011 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6012 s.move_heads_with(|map, head, _| {
6013 (
6014 movement::previous_subword_start(map, head),
6015 SelectionGoal::None,
6016 )
6017 });
6018 })
6019 }
6020
6021 pub fn delete_to_previous_word_start(
6022 &mut self,
6023 _: &DeleteToPreviousWordStart,
6024 cx: &mut ViewContext<Self>,
6025 ) {
6026 self.transact(cx, |this, cx| {
6027 this.select_autoclose_pair(cx);
6028 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6029 let line_mode = s.line_mode;
6030 s.move_with(|map, selection| {
6031 if selection.is_empty() && !line_mode {
6032 let cursor = movement::previous_word_start(map, selection.head());
6033 selection.set_head(cursor, SelectionGoal::None);
6034 }
6035 });
6036 });
6037 this.insert("", cx);
6038 });
6039 }
6040
6041 pub fn delete_to_previous_subword_start(
6042 &mut self,
6043 _: &DeleteToPreviousSubwordStart,
6044 cx: &mut ViewContext<Self>,
6045 ) {
6046 self.transact(cx, |this, cx| {
6047 this.select_autoclose_pair(cx);
6048 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6049 let line_mode = s.line_mode;
6050 s.move_with(|map, selection| {
6051 if selection.is_empty() && !line_mode {
6052 let cursor = movement::previous_subword_start(map, selection.head());
6053 selection.set_head(cursor, SelectionGoal::None);
6054 }
6055 });
6056 });
6057 this.insert("", cx);
6058 });
6059 }
6060
6061 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6062 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6063 s.move_cursors_with(|map, head, _| {
6064 (movement::next_word_end(map, head), SelectionGoal::None)
6065 });
6066 })
6067 }
6068
6069 pub fn move_to_next_subword_end(
6070 &mut self,
6071 _: &MoveToNextSubwordEnd,
6072 cx: &mut ViewContext<Self>,
6073 ) {
6074 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6075 s.move_cursors_with(|map, head, _| {
6076 (movement::next_subword_end(map, head), SelectionGoal::None)
6077 });
6078 })
6079 }
6080
6081 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6082 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6083 s.move_heads_with(|map, head, _| {
6084 (movement::next_word_end(map, head), SelectionGoal::None)
6085 });
6086 })
6087 }
6088
6089 pub fn select_to_next_subword_end(
6090 &mut self,
6091 _: &SelectToNextSubwordEnd,
6092 cx: &mut ViewContext<Self>,
6093 ) {
6094 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6095 s.move_heads_with(|map, head, _| {
6096 (movement::next_subword_end(map, head), SelectionGoal::None)
6097 });
6098 })
6099 }
6100
6101 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6102 self.transact(cx, |this, cx| {
6103 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6104 let line_mode = s.line_mode;
6105 s.move_with(|map, selection| {
6106 if selection.is_empty() && !line_mode {
6107 let cursor = movement::next_word_end(map, selection.head());
6108 selection.set_head(cursor, SelectionGoal::None);
6109 }
6110 });
6111 });
6112 this.insert("", cx);
6113 });
6114 }
6115
6116 pub fn delete_to_next_subword_end(
6117 &mut self,
6118 _: &DeleteToNextSubwordEnd,
6119 cx: &mut ViewContext<Self>,
6120 ) {
6121 self.transact(cx, |this, cx| {
6122 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6123 s.move_with(|map, selection| {
6124 if selection.is_empty() {
6125 let cursor = movement::next_subword_end(map, selection.head());
6126 selection.set_head(cursor, SelectionGoal::None);
6127 }
6128 });
6129 });
6130 this.insert("", cx);
6131 });
6132 }
6133
6134 pub fn move_to_beginning_of_line(
6135 &mut self,
6136 _: &MoveToBeginningOfLine,
6137 cx: &mut ViewContext<Self>,
6138 ) {
6139 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6140 s.move_cursors_with(|map, head, _| {
6141 (
6142 movement::indented_line_beginning(map, head, true),
6143 SelectionGoal::None,
6144 )
6145 });
6146 })
6147 }
6148
6149 pub fn select_to_beginning_of_line(
6150 &mut self,
6151 action: &SelectToBeginningOfLine,
6152 cx: &mut ViewContext<Self>,
6153 ) {
6154 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6155 s.move_heads_with(|map, head, _| {
6156 (
6157 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6158 SelectionGoal::None,
6159 )
6160 });
6161 });
6162 }
6163
6164 pub fn delete_to_beginning_of_line(
6165 &mut self,
6166 _: &DeleteToBeginningOfLine,
6167 cx: &mut ViewContext<Self>,
6168 ) {
6169 self.transact(cx, |this, cx| {
6170 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6171 s.move_with(|_, selection| {
6172 selection.reversed = true;
6173 });
6174 });
6175
6176 this.select_to_beginning_of_line(
6177 &SelectToBeginningOfLine {
6178 stop_at_soft_wraps: false,
6179 },
6180 cx,
6181 );
6182 this.backspace(&Backspace, cx);
6183 });
6184 }
6185
6186 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6187 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6188 s.move_cursors_with(|map, head, _| {
6189 (movement::line_end(map, head, true), SelectionGoal::None)
6190 });
6191 })
6192 }
6193
6194 pub fn select_to_end_of_line(
6195 &mut self,
6196 action: &SelectToEndOfLine,
6197 cx: &mut ViewContext<Self>,
6198 ) {
6199 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6200 s.move_heads_with(|map, head, _| {
6201 (
6202 movement::line_end(map, head, action.stop_at_soft_wraps),
6203 SelectionGoal::None,
6204 )
6205 });
6206 })
6207 }
6208
6209 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6210 self.transact(cx, |this, cx| {
6211 this.select_to_end_of_line(
6212 &SelectToEndOfLine {
6213 stop_at_soft_wraps: false,
6214 },
6215 cx,
6216 );
6217 this.delete(&Delete, cx);
6218 });
6219 }
6220
6221 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6222 self.transact(cx, |this, cx| {
6223 this.select_to_end_of_line(
6224 &SelectToEndOfLine {
6225 stop_at_soft_wraps: false,
6226 },
6227 cx,
6228 );
6229 this.cut(&Cut, cx);
6230 });
6231 }
6232
6233 pub fn move_to_start_of_paragraph(
6234 &mut self,
6235 _: &MoveToStartOfParagraph,
6236 cx: &mut ViewContext<Self>,
6237 ) {
6238 if matches!(self.mode, EditorMode::SingleLine) {
6239 cx.propagate();
6240 return;
6241 }
6242
6243 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6244 s.move_with(|map, selection| {
6245 selection.collapse_to(
6246 movement::start_of_paragraph(map, selection.head(), 1),
6247 SelectionGoal::None,
6248 )
6249 });
6250 })
6251 }
6252
6253 pub fn move_to_end_of_paragraph(
6254 &mut self,
6255 _: &MoveToEndOfParagraph,
6256 cx: &mut ViewContext<Self>,
6257 ) {
6258 if matches!(self.mode, EditorMode::SingleLine) {
6259 cx.propagate();
6260 return;
6261 }
6262
6263 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6264 s.move_with(|map, selection| {
6265 selection.collapse_to(
6266 movement::end_of_paragraph(map, selection.head(), 1),
6267 SelectionGoal::None,
6268 )
6269 });
6270 })
6271 }
6272
6273 pub fn select_to_start_of_paragraph(
6274 &mut self,
6275 _: &SelectToStartOfParagraph,
6276 cx: &mut ViewContext<Self>,
6277 ) {
6278 if matches!(self.mode, EditorMode::SingleLine) {
6279 cx.propagate();
6280 return;
6281 }
6282
6283 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6284 s.move_heads_with(|map, head, _| {
6285 (
6286 movement::start_of_paragraph(map, head, 1),
6287 SelectionGoal::None,
6288 )
6289 });
6290 })
6291 }
6292
6293 pub fn select_to_end_of_paragraph(
6294 &mut self,
6295 _: &SelectToEndOfParagraph,
6296 cx: &mut ViewContext<Self>,
6297 ) {
6298 if matches!(self.mode, EditorMode::SingleLine) {
6299 cx.propagate();
6300 return;
6301 }
6302
6303 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6304 s.move_heads_with(|map, head, _| {
6305 (
6306 movement::end_of_paragraph(map, head, 1),
6307 SelectionGoal::None,
6308 )
6309 });
6310 })
6311 }
6312
6313 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6314 if matches!(self.mode, EditorMode::SingleLine) {
6315 cx.propagate();
6316 return;
6317 }
6318
6319 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6320 s.select_ranges(vec![0..0]);
6321 });
6322 }
6323
6324 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6325 let mut selection = self.selections.last::<Point>(cx);
6326 selection.set_head(Point::zero(), SelectionGoal::None);
6327
6328 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6329 s.select(vec![selection]);
6330 });
6331 }
6332
6333 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6334 if matches!(self.mode, EditorMode::SingleLine) {
6335 cx.propagate();
6336 return;
6337 }
6338
6339 let cursor = self.buffer.read(cx).read(cx).len();
6340 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6341 s.select_ranges(vec![cursor..cursor])
6342 });
6343 }
6344
6345 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6346 self.nav_history = nav_history;
6347 }
6348
6349 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6350 self.nav_history.as_ref()
6351 }
6352
6353 fn push_to_nav_history(
6354 &mut self,
6355 cursor_anchor: Anchor,
6356 new_position: Option<Point>,
6357 cx: &mut ViewContext<Self>,
6358 ) {
6359 if let Some(nav_history) = self.nav_history.as_mut() {
6360 let buffer = self.buffer.read(cx).read(cx);
6361 let cursor_position = cursor_anchor.to_point(&buffer);
6362 let scroll_state = self.scroll_manager.anchor();
6363 let scroll_top_row = scroll_state.top_row(&buffer);
6364 drop(buffer);
6365
6366 if let Some(new_position) = new_position {
6367 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6368 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6369 return;
6370 }
6371 }
6372
6373 nav_history.push(
6374 Some(NavigationData {
6375 cursor_anchor,
6376 cursor_position,
6377 scroll_anchor: scroll_state,
6378 scroll_top_row,
6379 }),
6380 cx,
6381 );
6382 }
6383 }
6384
6385 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6386 let buffer = self.buffer.read(cx).snapshot(cx);
6387 let mut selection = self.selections.first::<usize>(cx);
6388 selection.set_head(buffer.len(), SelectionGoal::None);
6389 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6390 s.select(vec![selection]);
6391 });
6392 }
6393
6394 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6395 let end = self.buffer.read(cx).read(cx).len();
6396 self.change_selections(None, cx, |s| {
6397 s.select_ranges(vec![0..end]);
6398 });
6399 }
6400
6401 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6402 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6403 let mut selections = self.selections.all::<Point>(cx);
6404 let max_point = display_map.buffer_snapshot.max_point();
6405 for selection in &mut selections {
6406 let rows = selection.spanned_rows(true, &display_map);
6407 selection.start = Point::new(rows.start, 0);
6408 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6409 selection.reversed = false;
6410 }
6411 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6412 s.select(selections);
6413 });
6414 }
6415
6416 pub fn split_selection_into_lines(
6417 &mut self,
6418 _: &SplitSelectionIntoLines,
6419 cx: &mut ViewContext<Self>,
6420 ) {
6421 let mut to_unfold = Vec::new();
6422 let mut new_selection_ranges = Vec::new();
6423 {
6424 let selections = self.selections.all::<Point>(cx);
6425 let buffer = self.buffer.read(cx).read(cx);
6426 for selection in selections {
6427 for row in selection.start.row..selection.end.row {
6428 let cursor = Point::new(row, buffer.line_len(row));
6429 new_selection_ranges.push(cursor..cursor);
6430 }
6431 new_selection_ranges.push(selection.end..selection.end);
6432 to_unfold.push(selection.start..selection.end);
6433 }
6434 }
6435 self.unfold_ranges(to_unfold, true, true, cx);
6436 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6437 s.select_ranges(new_selection_ranges);
6438 });
6439 }
6440
6441 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6442 self.add_selection(true, cx);
6443 }
6444
6445 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6446 self.add_selection(false, cx);
6447 }
6448
6449 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6450 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6451 let mut selections = self.selections.all::<Point>(cx);
6452 let text_layout_details = self.text_layout_details(cx);
6453 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6454 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6455 let range = oldest_selection.display_range(&display_map).sorted();
6456
6457 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6458 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6459 let positions = start_x.min(end_x)..start_x.max(end_x);
6460
6461 selections.clear();
6462 let mut stack = Vec::new();
6463 for row in range.start.row()..=range.end.row() {
6464 if let Some(selection) = self.selections.build_columnar_selection(
6465 &display_map,
6466 row,
6467 &positions,
6468 oldest_selection.reversed,
6469 &text_layout_details,
6470 ) {
6471 stack.push(selection.id);
6472 selections.push(selection);
6473 }
6474 }
6475
6476 if above {
6477 stack.reverse();
6478 }
6479
6480 AddSelectionsState { above, stack }
6481 });
6482
6483 let last_added_selection = *state.stack.last().unwrap();
6484 let mut new_selections = Vec::new();
6485 if above == state.above {
6486 let end_row = if above {
6487 0
6488 } else {
6489 display_map.max_point().row()
6490 };
6491
6492 'outer: for selection in selections {
6493 if selection.id == last_added_selection {
6494 let range = selection.display_range(&display_map).sorted();
6495 debug_assert_eq!(range.start.row(), range.end.row());
6496 let mut row = range.start.row();
6497 let positions =
6498 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6499 px(start)..px(end)
6500 } else {
6501 let start_x =
6502 display_map.x_for_display_point(range.start, &text_layout_details);
6503 let end_x =
6504 display_map.x_for_display_point(range.end, &text_layout_details);
6505 start_x.min(end_x)..start_x.max(end_x)
6506 };
6507
6508 while row != end_row {
6509 if above {
6510 row -= 1;
6511 } else {
6512 row += 1;
6513 }
6514
6515 if let Some(new_selection) = self.selections.build_columnar_selection(
6516 &display_map,
6517 row,
6518 &positions,
6519 selection.reversed,
6520 &text_layout_details,
6521 ) {
6522 state.stack.push(new_selection.id);
6523 if above {
6524 new_selections.push(new_selection);
6525 new_selections.push(selection);
6526 } else {
6527 new_selections.push(selection);
6528 new_selections.push(new_selection);
6529 }
6530
6531 continue 'outer;
6532 }
6533 }
6534 }
6535
6536 new_selections.push(selection);
6537 }
6538 } else {
6539 new_selections = selections;
6540 new_selections.retain(|s| s.id != last_added_selection);
6541 state.stack.pop();
6542 }
6543
6544 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6545 s.select(new_selections);
6546 });
6547 if state.stack.len() > 1 {
6548 self.add_selections_state = Some(state);
6549 }
6550 }
6551
6552 pub fn select_next_match_internal(
6553 &mut self,
6554 display_map: &DisplaySnapshot,
6555 replace_newest: bool,
6556 autoscroll: Option<Autoscroll>,
6557 cx: &mut ViewContext<Self>,
6558 ) -> Result<()> {
6559 fn select_next_match_ranges(
6560 this: &mut Editor,
6561 range: Range<usize>,
6562 replace_newest: bool,
6563 auto_scroll: Option<Autoscroll>,
6564 cx: &mut ViewContext<Editor>,
6565 ) {
6566 this.unfold_ranges([range.clone()], false, true, cx);
6567 this.change_selections(auto_scroll, cx, |s| {
6568 if replace_newest {
6569 s.delete(s.newest_anchor().id);
6570 }
6571 s.insert_range(range.clone());
6572 });
6573 }
6574
6575 let buffer = &display_map.buffer_snapshot;
6576 let mut selections = self.selections.all::<usize>(cx);
6577 if let Some(mut select_next_state) = self.select_next_state.take() {
6578 let query = &select_next_state.query;
6579 if !select_next_state.done {
6580 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6581 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6582 let mut next_selected_range = None;
6583
6584 let bytes_after_last_selection =
6585 buffer.bytes_in_range(last_selection.end..buffer.len());
6586 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6587 let query_matches = query
6588 .stream_find_iter(bytes_after_last_selection)
6589 .map(|result| (last_selection.end, result))
6590 .chain(
6591 query
6592 .stream_find_iter(bytes_before_first_selection)
6593 .map(|result| (0, result)),
6594 );
6595
6596 for (start_offset, query_match) in query_matches {
6597 let query_match = query_match.unwrap(); // can only fail due to I/O
6598 let offset_range =
6599 start_offset + query_match.start()..start_offset + query_match.end();
6600 let display_range = offset_range.start.to_display_point(&display_map)
6601 ..offset_range.end.to_display_point(&display_map);
6602
6603 if !select_next_state.wordwise
6604 || (!movement::is_inside_word(&display_map, display_range.start)
6605 && !movement::is_inside_word(&display_map, display_range.end))
6606 {
6607 // TODO: This is n^2, because we might check all the selections
6608 if !selections
6609 .iter()
6610 .any(|selection| selection.range().overlaps(&offset_range))
6611 {
6612 next_selected_range = Some(offset_range);
6613 break;
6614 }
6615 }
6616 }
6617
6618 if let Some(next_selected_range) = next_selected_range {
6619 select_next_match_ranges(
6620 self,
6621 next_selected_range,
6622 replace_newest,
6623 autoscroll,
6624 cx,
6625 );
6626 } else {
6627 select_next_state.done = true;
6628 }
6629 }
6630
6631 self.select_next_state = Some(select_next_state);
6632 } else {
6633 let mut only_carets = true;
6634 let mut same_text_selected = true;
6635 let mut selected_text = None;
6636
6637 let mut selections_iter = selections.iter().peekable();
6638 while let Some(selection) = selections_iter.next() {
6639 if selection.start != selection.end {
6640 only_carets = false;
6641 }
6642
6643 if same_text_selected {
6644 if selected_text.is_none() {
6645 selected_text =
6646 Some(buffer.text_for_range(selection.range()).collect::<String>());
6647 }
6648
6649 if let Some(next_selection) = selections_iter.peek() {
6650 if next_selection.range().len() == selection.range().len() {
6651 let next_selected_text = buffer
6652 .text_for_range(next_selection.range())
6653 .collect::<String>();
6654 if Some(next_selected_text) != selected_text {
6655 same_text_selected = false;
6656 selected_text = None;
6657 }
6658 } else {
6659 same_text_selected = false;
6660 selected_text = None;
6661 }
6662 }
6663 }
6664 }
6665
6666 if only_carets {
6667 for selection in &mut selections {
6668 let word_range = movement::surrounding_word(
6669 &display_map,
6670 selection.start.to_display_point(&display_map),
6671 );
6672 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6673 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6674 selection.goal = SelectionGoal::None;
6675 selection.reversed = false;
6676 select_next_match_ranges(
6677 self,
6678 selection.start..selection.end,
6679 replace_newest,
6680 autoscroll,
6681 cx,
6682 );
6683 }
6684
6685 if selections.len() == 1 {
6686 let selection = selections
6687 .last()
6688 .expect("ensured that there's only one selection");
6689 let query = buffer
6690 .text_for_range(selection.start..selection.end)
6691 .collect::<String>();
6692 let is_empty = query.is_empty();
6693 let select_state = SelectNextState {
6694 query: AhoCorasick::new(&[query])?,
6695 wordwise: true,
6696 done: is_empty,
6697 };
6698 self.select_next_state = Some(select_state);
6699 } else {
6700 self.select_next_state = None;
6701 }
6702 } else if let Some(selected_text) = selected_text {
6703 self.select_next_state = Some(SelectNextState {
6704 query: AhoCorasick::new(&[selected_text])?,
6705 wordwise: false,
6706 done: false,
6707 });
6708 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6709 }
6710 }
6711 Ok(())
6712 }
6713
6714 pub fn select_all_matches(
6715 &mut self,
6716 _action: &SelectAllMatches,
6717 cx: &mut ViewContext<Self>,
6718 ) -> Result<()> {
6719 self.push_to_selection_history();
6720 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6721
6722 self.select_next_match_internal(&display_map, false, None, cx)?;
6723 let Some(select_next_state) = self.select_next_state.as_mut() else {
6724 return Ok(());
6725 };
6726 if select_next_state.done {
6727 return Ok(());
6728 }
6729
6730 let mut new_selections = self.selections.all::<usize>(cx);
6731
6732 let buffer = &display_map.buffer_snapshot;
6733 let query_matches = select_next_state
6734 .query
6735 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6736
6737 for query_match in query_matches {
6738 let query_match = query_match.unwrap(); // can only fail due to I/O
6739 let offset_range = query_match.start()..query_match.end();
6740 let display_range = offset_range.start.to_display_point(&display_map)
6741 ..offset_range.end.to_display_point(&display_map);
6742
6743 if !select_next_state.wordwise
6744 || (!movement::is_inside_word(&display_map, display_range.start)
6745 && !movement::is_inside_word(&display_map, display_range.end))
6746 {
6747 self.selections.change_with(cx, |selections| {
6748 new_selections.push(Selection {
6749 id: selections.new_selection_id(),
6750 start: offset_range.start,
6751 end: offset_range.end,
6752 reversed: false,
6753 goal: SelectionGoal::None,
6754 });
6755 });
6756 }
6757 }
6758
6759 new_selections.sort_by_key(|selection| selection.start);
6760 let mut ix = 0;
6761 while ix + 1 < new_selections.len() {
6762 let current_selection = &new_selections[ix];
6763 let next_selection = &new_selections[ix + 1];
6764 if current_selection.range().overlaps(&next_selection.range()) {
6765 if current_selection.id < next_selection.id {
6766 new_selections.remove(ix + 1);
6767 } else {
6768 new_selections.remove(ix);
6769 }
6770 } else {
6771 ix += 1;
6772 }
6773 }
6774
6775 select_next_state.done = true;
6776 self.unfold_ranges(
6777 new_selections.iter().map(|selection| selection.range()),
6778 false,
6779 false,
6780 cx,
6781 );
6782 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6783 selections.select(new_selections)
6784 });
6785
6786 Ok(())
6787 }
6788
6789 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6790 self.push_to_selection_history();
6791 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6792 self.select_next_match_internal(
6793 &display_map,
6794 action.replace_newest,
6795 Some(Autoscroll::newest()),
6796 cx,
6797 )?;
6798 Ok(())
6799 }
6800
6801 pub fn select_previous(
6802 &mut self,
6803 action: &SelectPrevious,
6804 cx: &mut ViewContext<Self>,
6805 ) -> Result<()> {
6806 self.push_to_selection_history();
6807 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6808 let buffer = &display_map.buffer_snapshot;
6809 let mut selections = self.selections.all::<usize>(cx);
6810 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6811 let query = &select_prev_state.query;
6812 if !select_prev_state.done {
6813 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6814 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6815 let mut next_selected_range = None;
6816 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6817 let bytes_before_last_selection =
6818 buffer.reversed_bytes_in_range(0..last_selection.start);
6819 let bytes_after_first_selection =
6820 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6821 let query_matches = query
6822 .stream_find_iter(bytes_before_last_selection)
6823 .map(|result| (last_selection.start, result))
6824 .chain(
6825 query
6826 .stream_find_iter(bytes_after_first_selection)
6827 .map(|result| (buffer.len(), result)),
6828 );
6829 for (end_offset, query_match) in query_matches {
6830 let query_match = query_match.unwrap(); // can only fail due to I/O
6831 let offset_range =
6832 end_offset - query_match.end()..end_offset - query_match.start();
6833 let display_range = offset_range.start.to_display_point(&display_map)
6834 ..offset_range.end.to_display_point(&display_map);
6835
6836 if !select_prev_state.wordwise
6837 || (!movement::is_inside_word(&display_map, display_range.start)
6838 && !movement::is_inside_word(&display_map, display_range.end))
6839 {
6840 next_selected_range = Some(offset_range);
6841 break;
6842 }
6843 }
6844
6845 if let Some(next_selected_range) = next_selected_range {
6846 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6847 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6848 if action.replace_newest {
6849 s.delete(s.newest_anchor().id);
6850 }
6851 s.insert_range(next_selected_range);
6852 });
6853 } else {
6854 select_prev_state.done = true;
6855 }
6856 }
6857
6858 self.select_prev_state = Some(select_prev_state);
6859 } else {
6860 let mut only_carets = true;
6861 let mut same_text_selected = true;
6862 let mut selected_text = None;
6863
6864 let mut selections_iter = selections.iter().peekable();
6865 while let Some(selection) = selections_iter.next() {
6866 if selection.start != selection.end {
6867 only_carets = false;
6868 }
6869
6870 if same_text_selected {
6871 if selected_text.is_none() {
6872 selected_text =
6873 Some(buffer.text_for_range(selection.range()).collect::<String>());
6874 }
6875
6876 if let Some(next_selection) = selections_iter.peek() {
6877 if next_selection.range().len() == selection.range().len() {
6878 let next_selected_text = buffer
6879 .text_for_range(next_selection.range())
6880 .collect::<String>();
6881 if Some(next_selected_text) != selected_text {
6882 same_text_selected = false;
6883 selected_text = None;
6884 }
6885 } else {
6886 same_text_selected = false;
6887 selected_text = None;
6888 }
6889 }
6890 }
6891 }
6892
6893 if only_carets {
6894 for selection in &mut selections {
6895 let word_range = movement::surrounding_word(
6896 &display_map,
6897 selection.start.to_display_point(&display_map),
6898 );
6899 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6900 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6901 selection.goal = SelectionGoal::None;
6902 selection.reversed = false;
6903 }
6904 if selections.len() == 1 {
6905 let selection = selections
6906 .last()
6907 .expect("ensured that there's only one selection");
6908 let query = buffer
6909 .text_for_range(selection.start..selection.end)
6910 .collect::<String>();
6911 let is_empty = query.is_empty();
6912 let select_state = SelectNextState {
6913 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6914 wordwise: true,
6915 done: is_empty,
6916 };
6917 self.select_prev_state = Some(select_state);
6918 } else {
6919 self.select_prev_state = None;
6920 }
6921
6922 self.unfold_ranges(
6923 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6924 false,
6925 true,
6926 cx,
6927 );
6928 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6929 s.select(selections);
6930 });
6931 } else if let Some(selected_text) = selected_text {
6932 self.select_prev_state = Some(SelectNextState {
6933 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6934 wordwise: false,
6935 done: false,
6936 });
6937 self.select_previous(action, cx)?;
6938 }
6939 }
6940 Ok(())
6941 }
6942
6943 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6944 let text_layout_details = &self.text_layout_details(cx);
6945 self.transact(cx, |this, cx| {
6946 let mut selections = this.selections.all::<Point>(cx);
6947 let mut edits = Vec::new();
6948 let mut selection_edit_ranges = Vec::new();
6949 let mut last_toggled_row = None;
6950 let snapshot = this.buffer.read(cx).read(cx);
6951 let empty_str: Arc<str> = "".into();
6952 let mut suffixes_inserted = Vec::new();
6953
6954 fn comment_prefix_range(
6955 snapshot: &MultiBufferSnapshot,
6956 row: u32,
6957 comment_prefix: &str,
6958 comment_prefix_whitespace: &str,
6959 ) -> Range<Point> {
6960 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6961
6962 let mut line_bytes = snapshot
6963 .bytes_in_range(start..snapshot.max_point())
6964 .flatten()
6965 .copied();
6966
6967 // If this line currently begins with the line comment prefix, then record
6968 // the range containing the prefix.
6969 if line_bytes
6970 .by_ref()
6971 .take(comment_prefix.len())
6972 .eq(comment_prefix.bytes())
6973 {
6974 // Include any whitespace that matches the comment prefix.
6975 let matching_whitespace_len = line_bytes
6976 .zip(comment_prefix_whitespace.bytes())
6977 .take_while(|(a, b)| a == b)
6978 .count() as u32;
6979 let end = Point::new(
6980 start.row,
6981 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6982 );
6983 start..end
6984 } else {
6985 start..start
6986 }
6987 }
6988
6989 fn comment_suffix_range(
6990 snapshot: &MultiBufferSnapshot,
6991 row: u32,
6992 comment_suffix: &str,
6993 comment_suffix_has_leading_space: bool,
6994 ) -> Range<Point> {
6995 let end = Point::new(row, snapshot.line_len(row));
6996 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6997
6998 let mut line_end_bytes = snapshot
6999 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7000 .flatten()
7001 .copied();
7002
7003 let leading_space_len = if suffix_start_column > 0
7004 && line_end_bytes.next() == Some(b' ')
7005 && comment_suffix_has_leading_space
7006 {
7007 1
7008 } else {
7009 0
7010 };
7011
7012 // If this line currently begins with the line comment prefix, then record
7013 // the range containing the prefix.
7014 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7015 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7016 start..end
7017 } else {
7018 end..end
7019 }
7020 }
7021
7022 // TODO: Handle selections that cross excerpts
7023 for selection in &mut selections {
7024 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7025 let language = if let Some(language) =
7026 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7027 {
7028 language
7029 } else {
7030 continue;
7031 };
7032
7033 selection_edit_ranges.clear();
7034
7035 // If multiple selections contain a given row, avoid processing that
7036 // row more than once.
7037 let mut start_row = selection.start.row;
7038 if last_toggled_row == Some(start_row) {
7039 start_row += 1;
7040 }
7041 let end_row =
7042 if selection.end.row > selection.start.row && selection.end.column == 0 {
7043 selection.end.row - 1
7044 } else {
7045 selection.end.row
7046 };
7047 last_toggled_row = Some(end_row);
7048
7049 if start_row > end_row {
7050 continue;
7051 }
7052
7053 // If the language has line comments, toggle those.
7054 if let Some(full_comment_prefix) = language
7055 .line_comment_prefixes()
7056 .and_then(|prefixes| prefixes.first())
7057 {
7058 // Split the comment prefix's trailing whitespace into a separate string,
7059 // as that portion won't be used for detecting if a line is a comment.
7060 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7061 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7062 let mut all_selection_lines_are_comments = true;
7063
7064 for row in start_row..=end_row {
7065 if start_row < end_row && snapshot.is_line_blank(row) {
7066 continue;
7067 }
7068
7069 let prefix_range = comment_prefix_range(
7070 snapshot.deref(),
7071 row,
7072 comment_prefix,
7073 comment_prefix_whitespace,
7074 );
7075 if prefix_range.is_empty() {
7076 all_selection_lines_are_comments = false;
7077 }
7078 selection_edit_ranges.push(prefix_range);
7079 }
7080
7081 if all_selection_lines_are_comments {
7082 edits.extend(
7083 selection_edit_ranges
7084 .iter()
7085 .cloned()
7086 .map(|range| (range, empty_str.clone())),
7087 );
7088 } else {
7089 let min_column = selection_edit_ranges
7090 .iter()
7091 .map(|r| r.start.column)
7092 .min()
7093 .unwrap_or(0);
7094 edits.extend(selection_edit_ranges.iter().map(|range| {
7095 let position = Point::new(range.start.row, min_column);
7096 (position..position, full_comment_prefix.clone())
7097 }));
7098 }
7099 } else if let Some((full_comment_prefix, comment_suffix)) =
7100 language.block_comment_delimiters()
7101 {
7102 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7103 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7104 let prefix_range = comment_prefix_range(
7105 snapshot.deref(),
7106 start_row,
7107 comment_prefix,
7108 comment_prefix_whitespace,
7109 );
7110 let suffix_range = comment_suffix_range(
7111 snapshot.deref(),
7112 end_row,
7113 comment_suffix.trim_start_matches(' '),
7114 comment_suffix.starts_with(' '),
7115 );
7116
7117 if prefix_range.is_empty() || suffix_range.is_empty() {
7118 edits.push((
7119 prefix_range.start..prefix_range.start,
7120 full_comment_prefix.clone(),
7121 ));
7122 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7123 suffixes_inserted.push((end_row, comment_suffix.len()));
7124 } else {
7125 edits.push((prefix_range, empty_str.clone()));
7126 edits.push((suffix_range, empty_str.clone()));
7127 }
7128 } else {
7129 continue;
7130 }
7131 }
7132
7133 drop(snapshot);
7134 this.buffer.update(cx, |buffer, cx| {
7135 buffer.edit(edits, None, cx);
7136 });
7137
7138 // Adjust selections so that they end before any comment suffixes that
7139 // were inserted.
7140 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7141 let mut selections = this.selections.all::<Point>(cx);
7142 let snapshot = this.buffer.read(cx).read(cx);
7143 for selection in &mut selections {
7144 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7145 match row.cmp(&selection.end.row) {
7146 Ordering::Less => {
7147 suffixes_inserted.next();
7148 continue;
7149 }
7150 Ordering::Greater => break,
7151 Ordering::Equal => {
7152 if selection.end.column == snapshot.line_len(row) {
7153 if selection.is_empty() {
7154 selection.start.column -= suffix_len as u32;
7155 }
7156 selection.end.column -= suffix_len as u32;
7157 }
7158 break;
7159 }
7160 }
7161 }
7162 }
7163
7164 drop(snapshot);
7165 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7166
7167 let selections = this.selections.all::<Point>(cx);
7168 let selections_on_single_row = selections.windows(2).all(|selections| {
7169 selections[0].start.row == selections[1].start.row
7170 && selections[0].end.row == selections[1].end.row
7171 && selections[0].start.row == selections[0].end.row
7172 });
7173 let selections_selecting = selections
7174 .iter()
7175 .any(|selection| selection.start != selection.end);
7176 let advance_downwards = action.advance_downwards
7177 && selections_on_single_row
7178 && !selections_selecting
7179 && this.mode != EditorMode::SingleLine;
7180
7181 if advance_downwards {
7182 let snapshot = this.buffer.read(cx).snapshot(cx);
7183
7184 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7185 s.move_cursors_with(|display_snapshot, display_point, _| {
7186 let mut point = display_point.to_point(display_snapshot);
7187 point.row += 1;
7188 point = snapshot.clip_point(point, Bias::Left);
7189 let display_point = point.to_display_point(display_snapshot);
7190 let goal = SelectionGoal::HorizontalPosition(
7191 display_snapshot
7192 .x_for_display_point(display_point, &text_layout_details)
7193 .into(),
7194 );
7195 (display_point, goal)
7196 })
7197 });
7198 }
7199 });
7200 }
7201
7202 pub fn select_larger_syntax_node(
7203 &mut self,
7204 _: &SelectLargerSyntaxNode,
7205 cx: &mut ViewContext<Self>,
7206 ) {
7207 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7208 let buffer = self.buffer.read(cx).snapshot(cx);
7209 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7210
7211 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7212 let mut selected_larger_node = false;
7213 let new_selections = old_selections
7214 .iter()
7215 .map(|selection| {
7216 let old_range = selection.start..selection.end;
7217 let mut new_range = old_range.clone();
7218 while let Some(containing_range) =
7219 buffer.range_for_syntax_ancestor(new_range.clone())
7220 {
7221 new_range = containing_range;
7222 if !display_map.intersects_fold(new_range.start)
7223 && !display_map.intersects_fold(new_range.end)
7224 {
7225 break;
7226 }
7227 }
7228
7229 selected_larger_node |= new_range != old_range;
7230 Selection {
7231 id: selection.id,
7232 start: new_range.start,
7233 end: new_range.end,
7234 goal: SelectionGoal::None,
7235 reversed: selection.reversed,
7236 }
7237 })
7238 .collect::<Vec<_>>();
7239
7240 if selected_larger_node {
7241 stack.push(old_selections);
7242 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7243 s.select(new_selections);
7244 });
7245 }
7246 self.select_larger_syntax_node_stack = stack;
7247 }
7248
7249 pub fn select_smaller_syntax_node(
7250 &mut self,
7251 _: &SelectSmallerSyntaxNode,
7252 cx: &mut ViewContext<Self>,
7253 ) {
7254 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7255 if let Some(selections) = stack.pop() {
7256 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7257 s.select(selections.to_vec());
7258 });
7259 }
7260 self.select_larger_syntax_node_stack = stack;
7261 }
7262
7263 pub fn move_to_enclosing_bracket(
7264 &mut self,
7265 _: &MoveToEnclosingBracket,
7266 cx: &mut ViewContext<Self>,
7267 ) {
7268 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7269 s.move_offsets_with(|snapshot, selection| {
7270 let Some(enclosing_bracket_ranges) =
7271 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7272 else {
7273 return;
7274 };
7275
7276 let mut best_length = usize::MAX;
7277 let mut best_inside = false;
7278 let mut best_in_bracket_range = false;
7279 let mut best_destination = None;
7280 for (open, close) in enclosing_bracket_ranges {
7281 let close = close.to_inclusive();
7282 let length = close.end() - open.start;
7283 let inside = selection.start >= open.end && selection.end <= *close.start();
7284 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7285 || close.contains(&selection.head());
7286
7287 // If best is next to a bracket and current isn't, skip
7288 if !in_bracket_range && best_in_bracket_range {
7289 continue;
7290 }
7291
7292 // Prefer smaller lengths unless best is inside and current isn't
7293 if length > best_length && (best_inside || !inside) {
7294 continue;
7295 }
7296
7297 best_length = length;
7298 best_inside = inside;
7299 best_in_bracket_range = in_bracket_range;
7300 best_destination = Some(
7301 if close.contains(&selection.start) && close.contains(&selection.end) {
7302 if inside {
7303 open.end
7304 } else {
7305 open.start
7306 }
7307 } else {
7308 if inside {
7309 *close.start()
7310 } else {
7311 *close.end()
7312 }
7313 },
7314 );
7315 }
7316
7317 if let Some(destination) = best_destination {
7318 selection.collapse_to(destination, SelectionGoal::None);
7319 }
7320 })
7321 });
7322 }
7323
7324 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7325 self.end_selection(cx);
7326 self.selection_history.mode = SelectionHistoryMode::Undoing;
7327 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7328 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7329 self.select_next_state = entry.select_next_state;
7330 self.select_prev_state = entry.select_prev_state;
7331 self.add_selections_state = entry.add_selections_state;
7332 self.request_autoscroll(Autoscroll::newest(), cx);
7333 }
7334 self.selection_history.mode = SelectionHistoryMode::Normal;
7335 }
7336
7337 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7338 self.end_selection(cx);
7339 self.selection_history.mode = SelectionHistoryMode::Redoing;
7340 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7341 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7342 self.select_next_state = entry.select_next_state;
7343 self.select_prev_state = entry.select_prev_state;
7344 self.add_selections_state = entry.add_selections_state;
7345 self.request_autoscroll(Autoscroll::newest(), cx);
7346 }
7347 self.selection_history.mode = SelectionHistoryMode::Normal;
7348 }
7349
7350 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7351 self.go_to_diagnostic_impl(Direction::Next, cx)
7352 }
7353
7354 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7355 self.go_to_diagnostic_impl(Direction::Prev, cx)
7356 }
7357
7358 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7359 let buffer = self.buffer.read(cx).snapshot(cx);
7360 let selection = self.selections.newest::<usize>(cx);
7361
7362 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7363 if direction == Direction::Next {
7364 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7365 let (group_id, jump_to) = popover.activation_info();
7366 if self.activate_diagnostics(group_id, cx) {
7367 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7368 let mut new_selection = s.newest_anchor().clone();
7369 new_selection.collapse_to(jump_to, SelectionGoal::None);
7370 s.select_anchors(vec![new_selection.clone()]);
7371 });
7372 }
7373 return;
7374 }
7375 }
7376
7377 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7378 active_diagnostics
7379 .primary_range
7380 .to_offset(&buffer)
7381 .to_inclusive()
7382 });
7383 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7384 if active_primary_range.contains(&selection.head()) {
7385 *active_primary_range.end()
7386 } else {
7387 selection.head()
7388 }
7389 } else {
7390 selection.head()
7391 };
7392
7393 loop {
7394 let mut diagnostics = if direction == Direction::Prev {
7395 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7396 } else {
7397 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7398 };
7399 let group = diagnostics.find_map(|entry| {
7400 if entry.diagnostic.is_primary
7401 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7402 && !entry.range.is_empty()
7403 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7404 && !entry.range.contains(&search_start)
7405 {
7406 Some((entry.range, entry.diagnostic.group_id))
7407 } else {
7408 None
7409 }
7410 });
7411
7412 if let Some((primary_range, group_id)) = group {
7413 if self.activate_diagnostics(group_id, cx) {
7414 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7415 s.select(vec![Selection {
7416 id: selection.id,
7417 start: primary_range.start,
7418 end: primary_range.start,
7419 reversed: false,
7420 goal: SelectionGoal::None,
7421 }]);
7422 });
7423 }
7424 break;
7425 } else {
7426 // Cycle around to the start of the buffer, potentially moving back to the start of
7427 // the currently active diagnostic.
7428 active_primary_range.take();
7429 if direction == Direction::Prev {
7430 if search_start == buffer.len() {
7431 break;
7432 } else {
7433 search_start = buffer.len();
7434 }
7435 } else if search_start == 0 {
7436 break;
7437 } else {
7438 search_start = 0;
7439 }
7440 }
7441 }
7442 }
7443
7444 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7445 let snapshot = self
7446 .display_map
7447 .update(cx, |display_map, cx| display_map.snapshot(cx));
7448 let selection = self.selections.newest::<Point>(cx);
7449
7450 if !self.seek_in_direction(
7451 &snapshot,
7452 selection.head(),
7453 false,
7454 snapshot
7455 .buffer_snapshot
7456 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7457 cx,
7458 ) {
7459 let wrapped_point = Point::zero();
7460 self.seek_in_direction(
7461 &snapshot,
7462 wrapped_point,
7463 true,
7464 snapshot
7465 .buffer_snapshot
7466 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7467 cx,
7468 );
7469 }
7470 }
7471
7472 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7473 let snapshot = self
7474 .display_map
7475 .update(cx, |display_map, cx| display_map.snapshot(cx));
7476 let selection = self.selections.newest::<Point>(cx);
7477
7478 if !self.seek_in_direction(
7479 &snapshot,
7480 selection.head(),
7481 false,
7482 snapshot
7483 .buffer_snapshot
7484 .git_diff_hunks_in_range_rev(0..selection.head().row),
7485 cx,
7486 ) {
7487 let wrapped_point = snapshot.buffer_snapshot.max_point();
7488 self.seek_in_direction(
7489 &snapshot,
7490 wrapped_point,
7491 true,
7492 snapshot
7493 .buffer_snapshot
7494 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7495 cx,
7496 );
7497 }
7498 }
7499
7500 fn seek_in_direction(
7501 &mut self,
7502 snapshot: &DisplaySnapshot,
7503 initial_point: Point,
7504 is_wrapped: bool,
7505 hunks: impl Iterator<Item = DiffHunk<u32>>,
7506 cx: &mut ViewContext<Editor>,
7507 ) -> bool {
7508 let display_point = initial_point.to_display_point(snapshot);
7509 let mut hunks = hunks
7510 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7511 .filter(|hunk| {
7512 if is_wrapped {
7513 true
7514 } else {
7515 !hunk.contains_display_row(display_point.row())
7516 }
7517 })
7518 .dedup();
7519
7520 if let Some(hunk) = hunks.next() {
7521 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7522 let row = hunk.start_display_row();
7523 let point = DisplayPoint::new(row, 0);
7524 s.select_display_ranges([point..point]);
7525 });
7526
7527 true
7528 } else {
7529 false
7530 }
7531 }
7532
7533 pub fn go_to_definition(
7534 &mut self,
7535 _: &GoToDefinition,
7536 cx: &mut ViewContext<Self>,
7537 ) -> Task<Result<bool>> {
7538 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
7539 }
7540
7541 pub fn go_to_implementation(
7542 &mut self,
7543 _: &GoToImplementation,
7544 cx: &mut ViewContext<Self>,
7545 ) -> Task<Result<bool>> {
7546 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
7547 }
7548
7549 pub fn go_to_implementation_split(
7550 &mut self,
7551 _: &GoToImplementationSplit,
7552 cx: &mut ViewContext<Self>,
7553 ) -> Task<Result<bool>> {
7554 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
7555 }
7556
7557 pub fn go_to_type_definition(
7558 &mut self,
7559 _: &GoToTypeDefinition,
7560 cx: &mut ViewContext<Self>,
7561 ) -> Task<Result<bool>> {
7562 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
7563 }
7564
7565 pub fn go_to_definition_split(
7566 &mut self,
7567 _: &GoToDefinitionSplit,
7568 cx: &mut ViewContext<Self>,
7569 ) -> Task<Result<bool>> {
7570 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
7571 }
7572
7573 pub fn go_to_type_definition_split(
7574 &mut self,
7575 _: &GoToTypeDefinitionSplit,
7576 cx: &mut ViewContext<Self>,
7577 ) -> Task<Result<bool>> {
7578 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
7579 }
7580
7581 fn go_to_definition_of_kind(
7582 &mut self,
7583 kind: GotoDefinitionKind,
7584 split: bool,
7585 cx: &mut ViewContext<Self>,
7586 ) -> Task<Result<bool>> {
7587 let Some(workspace) = self.workspace() else {
7588 return Task::ready(Ok(false));
7589 };
7590 let buffer = self.buffer.read(cx);
7591 let head = self.selections.newest::<usize>(cx).head();
7592 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7593 text_anchor
7594 } else {
7595 return Task::ready(Ok(false));
7596 };
7597
7598 let project = workspace.read(cx).project().clone();
7599 let definitions = project.update(cx, |project, cx| match kind {
7600 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7601 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7602 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7603 });
7604
7605 cx.spawn(|editor, mut cx| async move {
7606 let definitions = definitions.await?;
7607 let navigated = editor
7608 .update(&mut cx, |editor, cx| {
7609 editor.navigate_to_hover_links(
7610 Some(kind),
7611 definitions.into_iter().map(HoverLink::Text).collect(),
7612 split,
7613 cx,
7614 )
7615 })?
7616 .await?;
7617 anyhow::Ok(navigated)
7618 })
7619 }
7620
7621 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7622 let position = self.selections.newest_anchor().head();
7623 let Some((buffer, buffer_position)) =
7624 self.buffer.read(cx).text_anchor_for_position(position, cx)
7625 else {
7626 return;
7627 };
7628
7629 cx.spawn(|editor, mut cx| async move {
7630 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7631 editor.update(&mut cx, |_, cx| {
7632 cx.open_url(&url);
7633 })
7634 } else {
7635 Ok(())
7636 }
7637 })
7638 .detach();
7639 }
7640
7641 pub(crate) fn navigate_to_hover_links(
7642 &mut self,
7643 kind: Option<GotoDefinitionKind>,
7644 mut definitions: Vec<HoverLink>,
7645 split: bool,
7646 cx: &mut ViewContext<Editor>,
7647 ) -> Task<Result<bool>> {
7648 // If there is one definition, just open it directly
7649 if definitions.len() == 1 {
7650 let definition = definitions.pop().unwrap();
7651 let target_task = match definition {
7652 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7653 HoverLink::InlayHint(lsp_location, server_id) => {
7654 self.compute_target_location(lsp_location, server_id, cx)
7655 }
7656 HoverLink::Url(url) => {
7657 cx.open_url(&url);
7658 Task::ready(Ok(None))
7659 }
7660 };
7661 cx.spawn(|editor, mut cx| async move {
7662 let target = target_task.await.context("target resolution task")?;
7663 if let Some(target) = target {
7664 editor.update(&mut cx, |editor, cx| {
7665 let Some(workspace) = editor.workspace() else {
7666 return false;
7667 };
7668 let pane = workspace.read(cx).active_pane().clone();
7669
7670 let range = target.range.to_offset(target.buffer.read(cx));
7671 let range = editor.range_for_match(&range);
7672 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7673 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
7674 s.select_ranges([range]);
7675 });
7676 } else {
7677 cx.window_context().defer(move |cx| {
7678 let target_editor: View<Self> =
7679 workspace.update(cx, |workspace, cx| {
7680 let pane = if split {
7681 workspace.adjacent_pane(cx)
7682 } else {
7683 workspace.active_pane().clone()
7684 };
7685
7686 workspace.open_project_item(pane, target.buffer.clone(), cx)
7687 });
7688 target_editor.update(cx, |target_editor, cx| {
7689 // When selecting a definition in a different buffer, disable the nav history
7690 // to avoid creating a history entry at the previous cursor location.
7691 pane.update(cx, |pane, _| pane.disable_history());
7692 target_editor.change_selections(
7693 Some(Autoscroll::focused()),
7694 cx,
7695 |s| {
7696 s.select_ranges([range]);
7697 },
7698 );
7699 pane.update(cx, |pane, _| pane.enable_history());
7700 });
7701 });
7702 }
7703 true
7704 })
7705 } else {
7706 Ok(false)
7707 }
7708 })
7709 } else if !definitions.is_empty() {
7710 let replica_id = self.replica_id(cx);
7711 cx.spawn(|editor, mut cx| async move {
7712 let (title, location_tasks, workspace) = editor
7713 .update(&mut cx, |editor, cx| {
7714 let tab_kind = match kind {
7715 Some(GotoDefinitionKind::Implementation) => "Implementations",
7716 _ => "Definitions",
7717 };
7718 let title = definitions
7719 .iter()
7720 .find_map(|definition| match definition {
7721 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7722 let buffer = origin.buffer.read(cx);
7723 format!(
7724 "{} for {}",
7725 tab_kind,
7726 buffer
7727 .text_for_range(origin.range.clone())
7728 .collect::<String>()
7729 )
7730 }),
7731 HoverLink::InlayHint(_, _) => None,
7732 HoverLink::Url(_) => None,
7733 })
7734 .unwrap_or(tab_kind.to_string());
7735 let location_tasks = definitions
7736 .into_iter()
7737 .map(|definition| match definition {
7738 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7739 HoverLink::InlayHint(lsp_location, server_id) => {
7740 editor.compute_target_location(lsp_location, server_id, cx)
7741 }
7742 HoverLink::Url(_) => Task::ready(Ok(None)),
7743 })
7744 .collect::<Vec<_>>();
7745 (title, location_tasks, editor.workspace().clone())
7746 })
7747 .context("location tasks preparation")?;
7748
7749 let locations = futures::future::join_all(location_tasks)
7750 .await
7751 .into_iter()
7752 .filter_map(|location| location.transpose())
7753 .collect::<Result<_>>()
7754 .context("location tasks")?;
7755
7756 let Some(workspace) = workspace else {
7757 return Ok(false);
7758 };
7759 let opened = workspace
7760 .update(&mut cx, |workspace, cx| {
7761 Self::open_locations_in_multibuffer(
7762 workspace, locations, replica_id, title, split, cx,
7763 )
7764 })
7765 .ok();
7766
7767 anyhow::Ok(opened.is_some())
7768 })
7769 } else {
7770 Task::ready(Ok(false))
7771 }
7772 }
7773
7774 fn compute_target_location(
7775 &self,
7776 lsp_location: lsp::Location,
7777 server_id: LanguageServerId,
7778 cx: &mut ViewContext<Editor>,
7779 ) -> Task<anyhow::Result<Option<Location>>> {
7780 let Some(project) = self.project.clone() else {
7781 return Task::Ready(Some(Ok(None)));
7782 };
7783
7784 cx.spawn(move |editor, mut cx| async move {
7785 let location_task = editor.update(&mut cx, |editor, cx| {
7786 project.update(cx, |project, cx| {
7787 let language_server_name =
7788 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7789 project
7790 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7791 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7792 });
7793 language_server_name.map(|language_server_name| {
7794 project.open_local_buffer_via_lsp(
7795 lsp_location.uri.clone(),
7796 server_id,
7797 language_server_name,
7798 cx,
7799 )
7800 })
7801 })
7802 })?;
7803 let location = match location_task {
7804 Some(task) => Some({
7805 let target_buffer_handle = task.await.context("open local buffer")?;
7806 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7807 let target_start = target_buffer
7808 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7809 let target_end = target_buffer
7810 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7811 target_buffer.anchor_after(target_start)
7812 ..target_buffer.anchor_before(target_end)
7813 })?;
7814 Location {
7815 buffer: target_buffer_handle,
7816 range,
7817 }
7818 }),
7819 None => None,
7820 };
7821 Ok(location)
7822 })
7823 }
7824
7825 pub fn find_all_references(
7826 &mut self,
7827 _: &FindAllReferences,
7828 cx: &mut ViewContext<Self>,
7829 ) -> Option<Task<Result<()>>> {
7830 let multi_buffer = self.buffer.read(cx);
7831 let selection = self.selections.newest::<usize>(cx);
7832 let head = selection.head();
7833
7834 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
7835 let head_anchor = multi_buffer_snapshot.anchor_at(
7836 head,
7837 if head < selection.tail() {
7838 Bias::Right
7839 } else {
7840 Bias::Left
7841 },
7842 );
7843 match self
7844 .find_all_references_task_sources
7845 .binary_search_by(|task_anchor| task_anchor.cmp(&head_anchor, &multi_buffer_snapshot))
7846 {
7847 Ok(_) => {
7848 log::info!(
7849 "Ignoring repeated FindAllReferences invocation with the position of already running task"
7850 );
7851 return None;
7852 }
7853 Err(i) => {
7854 self.find_all_references_task_sources.insert(i, head_anchor);
7855 }
7856 }
7857
7858 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
7859 let replica_id = self.replica_id(cx);
7860 let workspace = self.workspace()?;
7861 let project = workspace.read(cx).project().clone();
7862 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7863 let open_task = cx.spawn(|editor, mut cx| async move {
7864 let mut locations = references.await?;
7865 let snapshot = buffer.update(&mut cx, |buffer, _| buffer.snapshot())?;
7866 let head_offset = text::ToOffset::to_offset(&head, &snapshot);
7867
7868 // LSP may return references that contain the item itself we requested `find_all_references` for (eg. rust-analyzer)
7869 // So we will remove it from locations
7870 // If there is only one reference, we will not do this filter cause it may make locations empty
7871 if locations.len() > 1 {
7872 cx.update(|cx| {
7873 locations.retain(|location| {
7874 // fn foo(x : i64) {
7875 // ^
7876 // println!(x);
7877 // }
7878 // It is ok to find reference when caret being at ^ (the end of the word)
7879 // So we turn offset into inclusive to include the end of the word
7880 !location
7881 .range
7882 .to_offset(location.buffer.read(cx))
7883 .to_inclusive()
7884 .contains(&head_offset)
7885 });
7886 })?;
7887 }
7888
7889 if locations.is_empty() {
7890 return Ok(());
7891 }
7892
7893 // If there is one reference, just open it directly
7894 if locations.len() == 1 {
7895 let target = locations.pop().unwrap();
7896
7897 return editor.update(&mut cx, |editor, cx| {
7898 let range = target.range.to_offset(target.buffer.read(cx));
7899 let range = editor.range_for_match(&range);
7900
7901 if Some(&target.buffer) == editor.buffer().read(cx).as_singleton().as_ref() {
7902 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7903 s.select_ranges([range]);
7904 });
7905 } else {
7906 cx.window_context().defer(move |cx| {
7907 let target_editor: View<Self> =
7908 workspace.update(cx, |workspace, cx| {
7909 workspace.open_project_item(
7910 workspace.active_pane().clone(),
7911 target.buffer.clone(),
7912 cx,
7913 )
7914 });
7915 target_editor.update(cx, |target_editor, cx| {
7916 target_editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7917 s.select_ranges([range]);
7918 })
7919 })
7920 })
7921 }
7922 });
7923 }
7924
7925 workspace.update(&mut cx, |workspace, cx| {
7926 let title = locations
7927 .first()
7928 .as_ref()
7929 .map(|location| {
7930 let buffer = location.buffer.read(cx);
7931 format!(
7932 "References to `{}`",
7933 buffer
7934 .text_for_range(location.range.clone())
7935 .collect::<String>()
7936 )
7937 })
7938 .unwrap();
7939 Self::open_locations_in_multibuffer(
7940 workspace, locations, replica_id, title, false, cx,
7941 );
7942 })?;
7943
7944 Ok(())
7945 });
7946 Some(cx.spawn(|editor, mut cx| async move {
7947 open_task.await?;
7948 editor.update(&mut cx, |editor, _| {
7949 if let Ok(i) =
7950 editor
7951 .find_all_references_task_sources
7952 .binary_search_by(|task_anchor| {
7953 task_anchor.cmp(&head_anchor, &multi_buffer_snapshot)
7954 })
7955 {
7956 editor.find_all_references_task_sources.remove(i);
7957 }
7958 })?;
7959 anyhow::Ok(())
7960 }))
7961 }
7962
7963 /// Opens a multibuffer with the given project locations in it
7964 pub fn open_locations_in_multibuffer(
7965 workspace: &mut Workspace,
7966 mut locations: Vec<Location>,
7967 replica_id: ReplicaId,
7968 title: String,
7969 split: bool,
7970 cx: &mut ViewContext<Workspace>,
7971 ) {
7972 // If there are multiple definitions, open them in a multibuffer
7973 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7974 let mut locations = locations.into_iter().peekable();
7975 let mut ranges_to_highlight = Vec::new();
7976 let capability = workspace.project().read(cx).capability();
7977
7978 let excerpt_buffer = cx.new_model(|cx| {
7979 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7980 while let Some(location) = locations.next() {
7981 let buffer = location.buffer.read(cx);
7982 let mut ranges_for_buffer = Vec::new();
7983 let range = location.range.to_offset(buffer);
7984 ranges_for_buffer.push(range.clone());
7985
7986 while let Some(next_location) = locations.peek() {
7987 if next_location.buffer == location.buffer {
7988 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7989 locations.next();
7990 } else {
7991 break;
7992 }
7993 }
7994
7995 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7996 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7997 location.buffer.clone(),
7998 ranges_for_buffer,
7999 1,
8000 cx,
8001 ))
8002 }
8003
8004 multibuffer.with_title(title)
8005 });
8006
8007 let editor = cx.new_view(|cx| {
8008 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8009 });
8010 editor.update(cx, |editor, cx| {
8011 editor.highlight_background::<Self>(
8012 ranges_to_highlight,
8013 |theme| theme.editor_highlighted_line_background,
8014 cx,
8015 );
8016 });
8017 if split {
8018 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
8019 } else {
8020 workspace.add_item_to_active_pane(Box::new(editor), cx);
8021 }
8022 }
8023
8024 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8025 use language::ToOffset as _;
8026
8027 let project = self.project.clone()?;
8028 let selection = self.selections.newest_anchor().clone();
8029 let (cursor_buffer, cursor_buffer_position) = self
8030 .buffer
8031 .read(cx)
8032 .text_anchor_for_position(selection.head(), cx)?;
8033 let (tail_buffer, _) = self
8034 .buffer
8035 .read(cx)
8036 .text_anchor_for_position(selection.tail(), cx)?;
8037 if tail_buffer != cursor_buffer {
8038 return None;
8039 }
8040
8041 let snapshot = cursor_buffer.read(cx).snapshot();
8042 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8043 let prepare_rename = project.update(cx, |project, cx| {
8044 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8045 });
8046 drop(snapshot);
8047
8048 Some(cx.spawn(|this, mut cx| async move {
8049 let rename_range = if let Some(range) = prepare_rename.await? {
8050 Some(range)
8051 } else {
8052 this.update(&mut cx, |this, cx| {
8053 let buffer = this.buffer.read(cx).snapshot(cx);
8054 let mut buffer_highlights = this
8055 .document_highlights_for_position(selection.head(), &buffer)
8056 .filter(|highlight| {
8057 highlight.start.excerpt_id == selection.head().excerpt_id
8058 && highlight.end.excerpt_id == selection.head().excerpt_id
8059 });
8060 buffer_highlights
8061 .next()
8062 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8063 })?
8064 };
8065 if let Some(rename_range) = rename_range {
8066 this.update(&mut cx, |this, cx| {
8067 let snapshot = cursor_buffer.read(cx).snapshot();
8068 let rename_buffer_range = rename_range.to_offset(&snapshot);
8069 let cursor_offset_in_rename_range =
8070 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8071
8072 this.take_rename(false, cx);
8073 let buffer = this.buffer.read(cx).read(cx);
8074 let cursor_offset = selection.head().to_offset(&buffer);
8075 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8076 let rename_end = rename_start + rename_buffer_range.len();
8077 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8078 let mut old_highlight_id = None;
8079 let old_name: Arc<str> = buffer
8080 .chunks(rename_start..rename_end, true)
8081 .map(|chunk| {
8082 if old_highlight_id.is_none() {
8083 old_highlight_id = chunk.syntax_highlight_id;
8084 }
8085 chunk.text
8086 })
8087 .collect::<String>()
8088 .into();
8089
8090 drop(buffer);
8091
8092 // Position the selection in the rename editor so that it matches the current selection.
8093 this.show_local_selections = false;
8094 let rename_editor = cx.new_view(|cx| {
8095 let mut editor = Editor::single_line(cx);
8096 editor.buffer.update(cx, |buffer, cx| {
8097 buffer.edit([(0..0, old_name.clone())], None, cx)
8098 });
8099 editor.select_all(&SelectAll, cx);
8100 editor
8101 });
8102
8103 let ranges = this
8104 .clear_background_highlights::<DocumentHighlightWrite>(cx)
8105 .into_iter()
8106 .flat_map(|(_, ranges)| ranges.into_iter())
8107 .chain(
8108 this.clear_background_highlights::<DocumentHighlightRead>(cx)
8109 .into_iter()
8110 .flat_map(|(_, ranges)| ranges.into_iter()),
8111 )
8112 .collect();
8113
8114 this.highlight_text::<Rename>(
8115 ranges,
8116 HighlightStyle {
8117 fade_out: Some(0.6),
8118 ..Default::default()
8119 },
8120 cx,
8121 );
8122 let rename_focus_handle = rename_editor.focus_handle(cx);
8123 cx.focus(&rename_focus_handle);
8124 let block_id = this.insert_blocks(
8125 [BlockProperties {
8126 style: BlockStyle::Flex,
8127 position: range.start,
8128 height: 1,
8129 render: Arc::new({
8130 let rename_editor = rename_editor.clone();
8131 move |cx: &mut BlockContext| {
8132 let mut text_style = cx.editor_style.text.clone();
8133 if let Some(highlight_style) = old_highlight_id
8134 .and_then(|h| h.style(&cx.editor_style.syntax))
8135 {
8136 text_style = text_style.highlight(highlight_style);
8137 }
8138 div()
8139 .pl(cx.anchor_x)
8140 .child(EditorElement::new(
8141 &rename_editor,
8142 EditorStyle {
8143 background: cx.theme().system().transparent,
8144 local_player: cx.editor_style.local_player,
8145 text: text_style,
8146 scrollbar_width: cx.editor_style.scrollbar_width,
8147 syntax: cx.editor_style.syntax.clone(),
8148 status: cx.editor_style.status.clone(),
8149 inlay_hints_style: HighlightStyle {
8150 color: Some(cx.theme().status().hint),
8151 font_weight: Some(FontWeight::BOLD),
8152 ..HighlightStyle::default()
8153 },
8154 suggestions_style: HighlightStyle {
8155 color: Some(cx.theme().status().predictive),
8156 ..HighlightStyle::default()
8157 },
8158 },
8159 ))
8160 .into_any_element()
8161 }
8162 }),
8163 disposition: BlockDisposition::Below,
8164 }],
8165 Some(Autoscroll::fit()),
8166 cx,
8167 )[0];
8168 this.pending_rename = Some(RenameState {
8169 range,
8170 old_name,
8171 editor: rename_editor,
8172 block_id,
8173 });
8174 })?;
8175 }
8176
8177 Ok(())
8178 }))
8179 }
8180
8181 pub fn confirm_rename(
8182 &mut self,
8183 _: &ConfirmRename,
8184 cx: &mut ViewContext<Self>,
8185 ) -> Option<Task<Result<()>>> {
8186 let rename = self.take_rename(false, cx)?;
8187 let workspace = self.workspace()?;
8188 let (start_buffer, start) = self
8189 .buffer
8190 .read(cx)
8191 .text_anchor_for_position(rename.range.start, cx)?;
8192 let (end_buffer, end) = self
8193 .buffer
8194 .read(cx)
8195 .text_anchor_for_position(rename.range.end, cx)?;
8196 if start_buffer != end_buffer {
8197 return None;
8198 }
8199
8200 let buffer = start_buffer;
8201 let range = start..end;
8202 let old_name = rename.old_name;
8203 let new_name = rename.editor.read(cx).text(cx);
8204
8205 let rename = workspace
8206 .read(cx)
8207 .project()
8208 .clone()
8209 .update(cx, |project, cx| {
8210 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8211 });
8212 let workspace = workspace.downgrade();
8213
8214 Some(cx.spawn(|editor, mut cx| async move {
8215 let project_transaction = rename.await?;
8216 Self::open_project_transaction(
8217 &editor,
8218 workspace,
8219 project_transaction,
8220 format!("Rename: {} → {}", old_name, new_name),
8221 cx.clone(),
8222 )
8223 .await?;
8224
8225 editor.update(&mut cx, |editor, cx| {
8226 editor.refresh_document_highlights(cx);
8227 })?;
8228 Ok(())
8229 }))
8230 }
8231
8232 fn take_rename(
8233 &mut self,
8234 moving_cursor: bool,
8235 cx: &mut ViewContext<Self>,
8236 ) -> Option<RenameState> {
8237 let rename = self.pending_rename.take()?;
8238 if rename.editor.focus_handle(cx).is_focused(cx) {
8239 cx.focus(&self.focus_handle);
8240 }
8241
8242 self.remove_blocks(
8243 [rename.block_id].into_iter().collect(),
8244 Some(Autoscroll::fit()),
8245 cx,
8246 );
8247 self.clear_highlights::<Rename>(cx);
8248 self.show_local_selections = true;
8249
8250 if moving_cursor {
8251 let rename_editor = rename.editor.read(cx);
8252 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8253
8254 // Update the selection to match the position of the selection inside
8255 // the rename editor.
8256 let snapshot = self.buffer.read(cx).read(cx);
8257 let rename_range = rename.range.to_offset(&snapshot);
8258 let cursor_in_editor = snapshot
8259 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8260 .min(rename_range.end);
8261 drop(snapshot);
8262
8263 self.change_selections(None, cx, |s| {
8264 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8265 });
8266 } else {
8267 self.refresh_document_highlights(cx);
8268 }
8269
8270 Some(rename)
8271 }
8272
8273 pub fn pending_rename(&self) -> Option<&RenameState> {
8274 self.pending_rename.as_ref()
8275 }
8276
8277 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8278 let project = match &self.project {
8279 Some(project) => project.clone(),
8280 None => return None,
8281 };
8282
8283 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8284 }
8285
8286 fn perform_format(
8287 &mut self,
8288 project: Model<Project>,
8289 trigger: FormatTrigger,
8290 cx: &mut ViewContext<Self>,
8291 ) -> Task<Result<()>> {
8292 let buffer = self.buffer().clone();
8293 let mut buffers = buffer.read(cx).all_buffers();
8294 if trigger == FormatTrigger::Save {
8295 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8296 }
8297
8298 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8299 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8300
8301 cx.spawn(|_, mut cx| async move {
8302 let transaction = futures::select_biased! {
8303 () = timeout => {
8304 log::warn!("timed out waiting for formatting");
8305 None
8306 }
8307 transaction = format.log_err().fuse() => transaction,
8308 };
8309
8310 buffer
8311 .update(&mut cx, |buffer, cx| {
8312 if let Some(transaction) = transaction {
8313 if !buffer.is_singleton() {
8314 buffer.push_transaction(&transaction.0, cx);
8315 }
8316 }
8317
8318 cx.notify();
8319 })
8320 .ok();
8321
8322 Ok(())
8323 })
8324 }
8325
8326 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8327 if let Some(project) = self.project.clone() {
8328 self.buffer.update(cx, |multi_buffer, cx| {
8329 project.update(cx, |project, cx| {
8330 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8331 });
8332 })
8333 }
8334 }
8335
8336 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8337 cx.show_character_palette();
8338 }
8339
8340 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8341 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8342 let buffer = self.buffer.read(cx).snapshot(cx);
8343 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8344 let is_valid = buffer
8345 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8346 .any(|entry| {
8347 entry.diagnostic.is_primary
8348 && !entry.range.is_empty()
8349 && entry.range.start == primary_range_start
8350 && entry.diagnostic.message == active_diagnostics.primary_message
8351 });
8352
8353 if is_valid != active_diagnostics.is_valid {
8354 active_diagnostics.is_valid = is_valid;
8355 let mut new_styles = HashMap::default();
8356 for (block_id, diagnostic) in &active_diagnostics.blocks {
8357 new_styles.insert(
8358 *block_id,
8359 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8360 );
8361 }
8362 self.display_map
8363 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8364 }
8365 }
8366 }
8367
8368 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8369 self.dismiss_diagnostics(cx);
8370 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8371 let buffer = self.buffer.read(cx).snapshot(cx);
8372
8373 let mut primary_range = None;
8374 let mut primary_message = None;
8375 let mut group_end = Point::zero();
8376 let diagnostic_group = buffer
8377 .diagnostic_group::<Point>(group_id)
8378 .map(|entry| {
8379 if entry.range.end > group_end {
8380 group_end = entry.range.end;
8381 }
8382 if entry.diagnostic.is_primary {
8383 primary_range = Some(entry.range.clone());
8384 primary_message = Some(entry.diagnostic.message.clone());
8385 }
8386 entry
8387 })
8388 .collect::<Vec<_>>();
8389 let primary_range = primary_range?;
8390 let primary_message = primary_message?;
8391 let primary_range =
8392 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8393
8394 let blocks = display_map
8395 .insert_blocks(
8396 diagnostic_group.iter().map(|entry| {
8397 let diagnostic = entry.diagnostic.clone();
8398 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8399 BlockProperties {
8400 style: BlockStyle::Fixed,
8401 position: buffer.anchor_after(entry.range.start),
8402 height: message_height,
8403 render: diagnostic_block_renderer(diagnostic, true),
8404 disposition: BlockDisposition::Below,
8405 }
8406 }),
8407 cx,
8408 )
8409 .into_iter()
8410 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8411 .collect();
8412
8413 Some(ActiveDiagnosticGroup {
8414 primary_range,
8415 primary_message,
8416 blocks,
8417 is_valid: true,
8418 })
8419 });
8420 self.active_diagnostics.is_some()
8421 }
8422
8423 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8424 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8425 self.display_map.update(cx, |display_map, cx| {
8426 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8427 });
8428 cx.notify();
8429 }
8430 }
8431
8432 pub fn set_selections_from_remote(
8433 &mut self,
8434 selections: Vec<Selection<Anchor>>,
8435 pending_selection: Option<Selection<Anchor>>,
8436 cx: &mut ViewContext<Self>,
8437 ) {
8438 let old_cursor_position = self.selections.newest_anchor().head();
8439 self.selections.change_with(cx, |s| {
8440 s.select_anchors(selections);
8441 if let Some(pending_selection) = pending_selection {
8442 s.set_pending(pending_selection, SelectMode::Character);
8443 } else {
8444 s.clear_pending();
8445 }
8446 });
8447 self.selections_did_change(false, &old_cursor_position, cx);
8448 }
8449
8450 fn push_to_selection_history(&mut self) {
8451 self.selection_history.push(SelectionHistoryEntry {
8452 selections: self.selections.disjoint_anchors(),
8453 select_next_state: self.select_next_state.clone(),
8454 select_prev_state: self.select_prev_state.clone(),
8455 add_selections_state: self.add_selections_state.clone(),
8456 });
8457 }
8458
8459 pub fn transact(
8460 &mut self,
8461 cx: &mut ViewContext<Self>,
8462 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8463 ) -> Option<TransactionId> {
8464 self.start_transaction_at(Instant::now(), cx);
8465 update(self, cx);
8466 self.end_transaction_at(Instant::now(), cx)
8467 }
8468
8469 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8470 self.end_selection(cx);
8471 if let Some(tx_id) = self
8472 .buffer
8473 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8474 {
8475 self.selection_history
8476 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8477 cx.emit(EditorEvent::TransactionBegun {
8478 transaction_id: tx_id,
8479 })
8480 }
8481 }
8482
8483 fn end_transaction_at(
8484 &mut self,
8485 now: Instant,
8486 cx: &mut ViewContext<Self>,
8487 ) -> Option<TransactionId> {
8488 if let Some(tx_id) = self
8489 .buffer
8490 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8491 {
8492 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8493 *end_selections = Some(self.selections.disjoint_anchors());
8494 } else {
8495 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8496 }
8497
8498 cx.emit(EditorEvent::Edited);
8499 Some(tx_id)
8500 } else {
8501 None
8502 }
8503 }
8504
8505 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8506 let mut fold_ranges = Vec::new();
8507
8508 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8509
8510 let selections = self.selections.all_adjusted(cx);
8511 for selection in selections {
8512 let range = selection.range().sorted();
8513 let buffer_start_row = range.start.row;
8514
8515 for row in (0..=range.end.row).rev() {
8516 let fold_range = display_map.foldable_range(row);
8517
8518 if let Some(fold_range) = fold_range {
8519 if fold_range.end.row >= buffer_start_row {
8520 fold_ranges.push(fold_range);
8521 if row <= range.start.row {
8522 break;
8523 }
8524 }
8525 }
8526 }
8527 }
8528
8529 self.fold_ranges(fold_ranges, true, cx);
8530 }
8531
8532 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8533 let buffer_row = fold_at.buffer_row;
8534 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8535
8536 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8537 let autoscroll = self
8538 .selections
8539 .all::<Point>(cx)
8540 .iter()
8541 .any(|selection| fold_range.overlaps(&selection.range()));
8542
8543 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8544 }
8545 }
8546
8547 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8548 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8549 let buffer = &display_map.buffer_snapshot;
8550 let selections = self.selections.all::<Point>(cx);
8551 let ranges = selections
8552 .iter()
8553 .map(|s| {
8554 let range = s.display_range(&display_map).sorted();
8555 let mut start = range.start.to_point(&display_map);
8556 let mut end = range.end.to_point(&display_map);
8557 start.column = 0;
8558 end.column = buffer.line_len(end.row);
8559 start..end
8560 })
8561 .collect::<Vec<_>>();
8562
8563 self.unfold_ranges(ranges, true, true, cx);
8564 }
8565
8566 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8567 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8568
8569 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8570 ..Point::new(
8571 unfold_at.buffer_row,
8572 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8573 );
8574
8575 let autoscroll = self
8576 .selections
8577 .all::<Point>(cx)
8578 .iter()
8579 .any(|selection| selection.range().overlaps(&intersection_range));
8580
8581 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8582 }
8583
8584 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8585 let selections = self.selections.all::<Point>(cx);
8586 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8587 let line_mode = self.selections.line_mode;
8588 let ranges = selections.into_iter().map(|s| {
8589 if line_mode {
8590 let start = Point::new(s.start.row, 0);
8591 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8592 start..end
8593 } else {
8594 s.start..s.end
8595 }
8596 });
8597 self.fold_ranges(ranges, true, cx);
8598 }
8599
8600 pub fn fold_ranges<T: ToOffset + Clone>(
8601 &mut self,
8602 ranges: impl IntoIterator<Item = Range<T>>,
8603 auto_scroll: bool,
8604 cx: &mut ViewContext<Self>,
8605 ) {
8606 let mut ranges = ranges.into_iter().peekable();
8607 if ranges.peek().is_some() {
8608 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8609
8610 if auto_scroll {
8611 self.request_autoscroll(Autoscroll::fit(), cx);
8612 }
8613
8614 cx.notify();
8615 }
8616 }
8617
8618 pub fn unfold_ranges<T: ToOffset + Clone>(
8619 &mut self,
8620 ranges: impl IntoIterator<Item = Range<T>>,
8621 inclusive: bool,
8622 auto_scroll: bool,
8623 cx: &mut ViewContext<Self>,
8624 ) {
8625 let mut ranges = ranges.into_iter().peekable();
8626 if ranges.peek().is_some() {
8627 self.display_map
8628 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8629 if auto_scroll {
8630 self.request_autoscroll(Autoscroll::fit(), cx);
8631 }
8632
8633 cx.notify();
8634 }
8635 }
8636
8637 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8638 if hovered != self.gutter_hovered {
8639 self.gutter_hovered = hovered;
8640 cx.notify();
8641 }
8642 }
8643
8644 pub fn insert_blocks(
8645 &mut self,
8646 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8647 autoscroll: Option<Autoscroll>,
8648 cx: &mut ViewContext<Self>,
8649 ) -> Vec<BlockId> {
8650 let blocks = self
8651 .display_map
8652 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8653 if let Some(autoscroll) = autoscroll {
8654 self.request_autoscroll(autoscroll, cx);
8655 }
8656 blocks
8657 }
8658
8659 pub fn replace_blocks(
8660 &mut self,
8661 blocks: HashMap<BlockId, RenderBlock>,
8662 autoscroll: Option<Autoscroll>,
8663 cx: &mut ViewContext<Self>,
8664 ) {
8665 self.display_map
8666 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8667 if let Some(autoscroll) = autoscroll {
8668 self.request_autoscroll(autoscroll, cx);
8669 }
8670 }
8671
8672 pub fn remove_blocks(
8673 &mut self,
8674 block_ids: HashSet<BlockId>,
8675 autoscroll: Option<Autoscroll>,
8676 cx: &mut ViewContext<Self>,
8677 ) {
8678 self.display_map.update(cx, |display_map, cx| {
8679 display_map.remove_blocks(block_ids, cx)
8680 });
8681 if let Some(autoscroll) = autoscroll {
8682 self.request_autoscroll(autoscroll, cx);
8683 }
8684 }
8685
8686 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8687 self.display_map
8688 .update(cx, |map, cx| map.snapshot(cx))
8689 .longest_row()
8690 }
8691
8692 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8693 self.display_map
8694 .update(cx, |map, cx| map.snapshot(cx))
8695 .max_point()
8696 }
8697
8698 pub fn text(&self, cx: &AppContext) -> String {
8699 self.buffer.read(cx).read(cx).text()
8700 }
8701
8702 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8703 let text = self.text(cx);
8704 let text = text.trim();
8705
8706 if text.is_empty() {
8707 return None;
8708 }
8709
8710 Some(text.to_string())
8711 }
8712
8713 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8714 self.transact(cx, |this, cx| {
8715 this.buffer
8716 .read(cx)
8717 .as_singleton()
8718 .expect("you can only call set_text on editors for singleton buffers")
8719 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8720 });
8721 }
8722
8723 pub fn display_text(&self, cx: &mut AppContext) -> String {
8724 self.display_map
8725 .update(cx, |map, cx| map.snapshot(cx))
8726 .text()
8727 }
8728
8729 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8730 let mut wrap_guides = smallvec::smallvec![];
8731
8732 if self.show_wrap_guides == Some(false) {
8733 return wrap_guides;
8734 }
8735
8736 let settings = self.buffer.read(cx).settings_at(0, cx);
8737 if settings.show_wrap_guides {
8738 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8739 wrap_guides.push((soft_wrap as usize, true));
8740 }
8741 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8742 }
8743
8744 wrap_guides
8745 }
8746
8747 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8748 let settings = self.buffer.read(cx).settings_at(0, cx);
8749 let mode = self
8750 .soft_wrap_mode_override
8751 .unwrap_or_else(|| settings.soft_wrap);
8752 match mode {
8753 language_settings::SoftWrap::None => SoftWrap::None,
8754 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8755 language_settings::SoftWrap::PreferredLineLength => {
8756 SoftWrap::Column(settings.preferred_line_length)
8757 }
8758 }
8759 }
8760
8761 pub fn set_soft_wrap_mode(
8762 &mut self,
8763 mode: language_settings::SoftWrap,
8764 cx: &mut ViewContext<Self>,
8765 ) {
8766 self.soft_wrap_mode_override = Some(mode);
8767 cx.notify();
8768 }
8769
8770 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8771 let rem_size = cx.rem_size();
8772 self.display_map.update(cx, |map, cx| {
8773 map.set_font(
8774 style.text.font(),
8775 style.text.font_size.to_pixels(rem_size),
8776 cx,
8777 )
8778 });
8779 self.style = Some(style);
8780 }
8781
8782 #[cfg(any(test, feature = "test-support"))]
8783 pub fn style(&self) -> Option<&EditorStyle> {
8784 self.style.as_ref()
8785 }
8786
8787 // Called by the element. This method is not designed to be called outside of the editor
8788 // element's layout code because it does not notify when rewrapping is computed synchronously.
8789 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8790 self.display_map
8791 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8792 }
8793
8794 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8795 if self.soft_wrap_mode_override.is_some() {
8796 self.soft_wrap_mode_override.take();
8797 } else {
8798 let soft_wrap = match self.soft_wrap_mode(cx) {
8799 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8800 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8801 };
8802 self.soft_wrap_mode_override = Some(soft_wrap);
8803 }
8804 cx.notify();
8805 }
8806
8807 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
8808 let mut editor_settings = EditorSettings::get_global(cx).clone();
8809 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
8810 EditorSettings::override_global(editor_settings, cx);
8811 }
8812
8813 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8814 self.show_gutter = show_gutter;
8815 cx.notify();
8816 }
8817
8818 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8819 self.show_wrap_guides = Some(show_gutter);
8820 cx.notify();
8821 }
8822
8823 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8824 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8825 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8826 cx.reveal_path(&file.abs_path(cx));
8827 }
8828 }
8829 }
8830
8831 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8832 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8833 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8834 if let Some(path) = file.abs_path(cx).to_str() {
8835 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8836 }
8837 }
8838 }
8839 }
8840
8841 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8842 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8843 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8844 if let Some(path) = file.path().to_str() {
8845 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8846 }
8847 }
8848 }
8849 }
8850
8851 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
8852 if !self.show_git_blame {
8853 if let Err(error) = self.show_git_blame_internal(cx) {
8854 log::error!("failed to toggle on 'git blame': {}", error);
8855 return;
8856 }
8857 self.show_git_blame = true
8858 } else {
8859 self.blame_subscription.take();
8860 self.blame.take();
8861 self.show_git_blame = false
8862 }
8863
8864 cx.notify();
8865 }
8866
8867 fn show_git_blame_internal(&mut self, cx: &mut ViewContext<Self>) -> Result<()> {
8868 if let Some(project) = self.project.as_ref() {
8869 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
8870 anyhow::bail!("git blame not available in multi buffers")
8871 };
8872
8873 let project = project.clone();
8874 let blame = cx.new_model(|cx| GitBlame::new(buffer, project, cx));
8875 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
8876 self.blame = Some(blame);
8877 }
8878
8879 Ok(())
8880 }
8881
8882 pub fn blame(&self) -> Option<&Model<GitBlame>> {
8883 self.blame.as_ref()
8884 }
8885
8886 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8887 let (path, repo) = maybe!({
8888 let project_handle = self.project.as_ref()?.clone();
8889 let project = project_handle.read(cx);
8890 let buffer = self.buffer().read(cx).as_singleton()?;
8891 let path = buffer
8892 .read(cx)
8893 .file()?
8894 .as_local()?
8895 .path()
8896 .to_str()?
8897 .to_string();
8898 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
8899 Some((path, repo))
8900 })
8901 .ok_or_else(|| anyhow!("unable to open git repository"))?;
8902
8903 const REMOTE_NAME: &str = "origin";
8904 let origin_url = repo
8905 .lock()
8906 .remote_url(REMOTE_NAME)
8907 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8908 let sha = repo
8909 .lock()
8910 .head_sha()
8911 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8912 let selections = self.selections.all::<Point>(cx);
8913 let selection = selections.iter().peekable().next();
8914
8915 build_permalink(BuildPermalinkParams {
8916 remote_url: &origin_url,
8917 sha: &sha,
8918 path: &path,
8919 selection: selection.map(|selection| {
8920 let range = selection.range();
8921 let start = range.start.row;
8922 let end = range.end.row;
8923 start..end
8924 }),
8925 })
8926 }
8927
8928 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8929 let permalink = self.get_permalink_to_line(cx);
8930
8931 match permalink {
8932 Ok(permalink) => {
8933 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8934 }
8935 Err(err) => {
8936 let message = format!("Failed to copy permalink: {err}");
8937
8938 Err::<(), anyhow::Error>(err).log_err();
8939
8940 if let Some(workspace) = self.workspace() {
8941 workspace.update(cx, |workspace, cx| {
8942 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8943 })
8944 }
8945 }
8946 }
8947 }
8948
8949 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8950 let permalink = self.get_permalink_to_line(cx);
8951
8952 match permalink {
8953 Ok(permalink) => {
8954 cx.open_url(permalink.as_ref());
8955 }
8956 Err(err) => {
8957 let message = format!("Failed to open permalink: {err}");
8958
8959 Err::<(), anyhow::Error>(err).log_err();
8960
8961 if let Some(workspace) = self.workspace() {
8962 workspace.update(cx, |workspace, cx| {
8963 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8964 })
8965 }
8966 }
8967 }
8968 }
8969
8970 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
8971 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
8972 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
8973 pub fn highlight_rows<T: 'static>(
8974 &mut self,
8975 rows: Range<Anchor>,
8976 color: Option<Hsla>,
8977 cx: &mut ViewContext<Self>,
8978 ) {
8979 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
8980 match self.highlighted_rows.entry(TypeId::of::<T>()) {
8981 hash_map::Entry::Occupied(o) => {
8982 let row_highlights = o.into_mut();
8983 let existing_highlight_index =
8984 row_highlights.binary_search_by(|(_, highlight_range, _)| {
8985 highlight_range
8986 .start
8987 .cmp(&rows.start, &multi_buffer_snapshot)
8988 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
8989 });
8990 match color {
8991 Some(color) => {
8992 let insert_index = match existing_highlight_index {
8993 Ok(i) => i,
8994 Err(i) => i,
8995 };
8996 row_highlights.insert(
8997 insert_index,
8998 (post_inc(&mut self.highlight_order), rows, color),
8999 );
9000 }
9001 None => {
9002 if let Ok(i) = existing_highlight_index {
9003 row_highlights.remove(i);
9004 }
9005 }
9006 }
9007 }
9008 hash_map::Entry::Vacant(v) => {
9009 if let Some(color) = color {
9010 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9011 }
9012 }
9013 }
9014 }
9015
9016 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9017 pub fn clear_row_highlights<T: 'static>(&mut self) {
9018 self.highlighted_rows.remove(&TypeId::of::<T>());
9019 }
9020
9021 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9022 pub fn highlighted_rows<T: 'static>(
9023 &self,
9024 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
9025 Some(
9026 self.highlighted_rows
9027 .get(&TypeId::of::<T>())?
9028 .iter()
9029 .map(|(_, range, color)| (range, color)),
9030 )
9031 }
9032
9033 // Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9034 // Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9035 pub fn highlighted_display_rows(&mut self, cx: &mut WindowContext) -> BTreeMap<u32, Hsla> {
9036 let snapshot = self.snapshot(cx);
9037 let mut used_highlight_orders = HashMap::default();
9038 self.highlighted_rows
9039 .iter()
9040 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9041 .fold(
9042 BTreeMap::<u32, Hsla>::new(),
9043 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9044 let start_row = anchor_range.start.to_display_point(&snapshot).row();
9045 let end_row = anchor_range.end.to_display_point(&snapshot).row();
9046 for row in start_row..=end_row {
9047 let used_index =
9048 used_highlight_orders.entry(row).or_insert(*highlight_order);
9049 if highlight_order >= used_index {
9050 *used_index = *highlight_order;
9051 unique_rows.insert(row, *hsla);
9052 }
9053 }
9054 unique_rows
9055 },
9056 )
9057 }
9058
9059 pub fn highlight_background<T: 'static>(
9060 &mut self,
9061 ranges: Vec<Range<Anchor>>,
9062 color_fetcher: fn(&ThemeColors) -> Hsla,
9063 cx: &mut ViewContext<Self>,
9064 ) {
9065 let snapshot = self.snapshot(cx);
9066 // this is to try and catch a panic sooner
9067 for range in &ranges {
9068 snapshot
9069 .buffer_snapshot
9070 .summary_for_anchor::<usize>(&range.start);
9071 snapshot
9072 .buffer_snapshot
9073 .summary_for_anchor::<usize>(&range.end);
9074 }
9075
9076 self.background_highlights
9077 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
9078 cx.notify();
9079 }
9080
9081 pub fn clear_background_highlights<T: 'static>(
9082 &mut self,
9083 _cx: &mut ViewContext<Self>,
9084 ) -> Option<BackgroundHighlight> {
9085 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
9086 text_highlights
9087 }
9088
9089 #[cfg(feature = "test-support")]
9090 pub fn all_text_background_highlights(
9091 &mut self,
9092 cx: &mut ViewContext<Self>,
9093 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9094 let snapshot = self.snapshot(cx);
9095 let buffer = &snapshot.buffer_snapshot;
9096 let start = buffer.anchor_before(0);
9097 let end = buffer.anchor_after(buffer.len());
9098 let theme = cx.theme().colors();
9099 self.background_highlights_in_range(start..end, &snapshot, theme)
9100 }
9101
9102 fn document_highlights_for_position<'a>(
9103 &'a self,
9104 position: Anchor,
9105 buffer: &'a MultiBufferSnapshot,
9106 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9107 let read_highlights = self
9108 .background_highlights
9109 .get(&TypeId::of::<DocumentHighlightRead>())
9110 .map(|h| &h.1);
9111 let write_highlights = self
9112 .background_highlights
9113 .get(&TypeId::of::<DocumentHighlightWrite>())
9114 .map(|h| &h.1);
9115 let left_position = position.bias_left(buffer);
9116 let right_position = position.bias_right(buffer);
9117 read_highlights
9118 .into_iter()
9119 .chain(write_highlights)
9120 .flat_map(move |ranges| {
9121 let start_ix = match ranges.binary_search_by(|probe| {
9122 let cmp = probe.end.cmp(&left_position, buffer);
9123 if cmp.is_ge() {
9124 Ordering::Greater
9125 } else {
9126 Ordering::Less
9127 }
9128 }) {
9129 Ok(i) | Err(i) => i,
9130 };
9131
9132 ranges[start_ix..]
9133 .iter()
9134 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9135 })
9136 }
9137
9138 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9139 self.background_highlights
9140 .get(&TypeId::of::<T>())
9141 .map_or(false, |(_, highlights)| !highlights.is_empty())
9142 }
9143
9144 pub fn background_highlights_in_range(
9145 &self,
9146 search_range: Range<Anchor>,
9147 display_snapshot: &DisplaySnapshot,
9148 theme: &ThemeColors,
9149 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9150 let mut results = Vec::new();
9151 for (color_fetcher, ranges) in self.background_highlights.values() {
9152 let color = color_fetcher(theme);
9153 let start_ix = match ranges.binary_search_by(|probe| {
9154 let cmp = probe
9155 .end
9156 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9157 if cmp.is_gt() {
9158 Ordering::Greater
9159 } else {
9160 Ordering::Less
9161 }
9162 }) {
9163 Ok(i) | Err(i) => i,
9164 };
9165 for range in &ranges[start_ix..] {
9166 if range
9167 .start
9168 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9169 .is_ge()
9170 {
9171 break;
9172 }
9173
9174 let start = range.start.to_display_point(&display_snapshot);
9175 let end = range.end.to_display_point(&display_snapshot);
9176 results.push((start..end, color))
9177 }
9178 }
9179 results
9180 }
9181
9182 pub fn background_highlight_row_ranges<T: 'static>(
9183 &self,
9184 search_range: Range<Anchor>,
9185 display_snapshot: &DisplaySnapshot,
9186 count: usize,
9187 ) -> Vec<RangeInclusive<DisplayPoint>> {
9188 let mut results = Vec::new();
9189 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9190 return vec![];
9191 };
9192
9193 let start_ix = match ranges.binary_search_by(|probe| {
9194 let cmp = probe
9195 .end
9196 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9197 if cmp.is_gt() {
9198 Ordering::Greater
9199 } else {
9200 Ordering::Less
9201 }
9202 }) {
9203 Ok(i) | Err(i) => i,
9204 };
9205 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9206 if let (Some(start_display), Some(end_display)) = (start, end) {
9207 results.push(
9208 start_display.to_display_point(display_snapshot)
9209 ..=end_display.to_display_point(display_snapshot),
9210 );
9211 }
9212 };
9213 let mut start_row: Option<Point> = None;
9214 let mut end_row: Option<Point> = None;
9215 if ranges.len() > count {
9216 return Vec::new();
9217 }
9218 for range in &ranges[start_ix..] {
9219 if range
9220 .start
9221 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9222 .is_ge()
9223 {
9224 break;
9225 }
9226 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9227 if let Some(current_row) = &end_row {
9228 if end.row == current_row.row {
9229 continue;
9230 }
9231 }
9232 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9233 if start_row.is_none() {
9234 assert_eq!(end_row, None);
9235 start_row = Some(start);
9236 end_row = Some(end);
9237 continue;
9238 }
9239 if let Some(current_end) = end_row.as_mut() {
9240 if start.row > current_end.row + 1 {
9241 push_region(start_row, end_row);
9242 start_row = Some(start);
9243 end_row = Some(end);
9244 } else {
9245 // Merge two hunks.
9246 *current_end = end;
9247 }
9248 } else {
9249 unreachable!();
9250 }
9251 }
9252 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9253 push_region(start_row, end_row);
9254 results
9255 }
9256
9257 /// Get the text ranges corresponding to the redaction query
9258 pub fn redacted_ranges(
9259 &self,
9260 search_range: Range<Anchor>,
9261 display_snapshot: &DisplaySnapshot,
9262 cx: &WindowContext,
9263 ) -> Vec<Range<DisplayPoint>> {
9264 display_snapshot
9265 .buffer_snapshot
9266 .redacted_ranges(search_range, |file| {
9267 if let Some(file) = file {
9268 file.is_private()
9269 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
9270 } else {
9271 false
9272 }
9273 })
9274 .map(|range| {
9275 range.start.to_display_point(display_snapshot)
9276 ..range.end.to_display_point(display_snapshot)
9277 })
9278 .collect()
9279 }
9280
9281 pub fn highlight_text<T: 'static>(
9282 &mut self,
9283 ranges: Vec<Range<Anchor>>,
9284 style: HighlightStyle,
9285 cx: &mut ViewContext<Self>,
9286 ) {
9287 self.display_map.update(cx, |map, _| {
9288 map.highlight_text(TypeId::of::<T>(), ranges, style)
9289 });
9290 cx.notify();
9291 }
9292
9293 pub(crate) fn highlight_inlays<T: 'static>(
9294 &mut self,
9295 highlights: Vec<InlayHighlight>,
9296 style: HighlightStyle,
9297 cx: &mut ViewContext<Self>,
9298 ) {
9299 self.display_map.update(cx, |map, _| {
9300 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9301 });
9302 cx.notify();
9303 }
9304
9305 pub fn text_highlights<'a, T: 'static>(
9306 &'a self,
9307 cx: &'a AppContext,
9308 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9309 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9310 }
9311
9312 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9313 let cleared = self
9314 .display_map
9315 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9316 if cleared {
9317 cx.notify();
9318 }
9319 }
9320
9321 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9322 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9323 && self.focus_handle.is_focused(cx)
9324 }
9325
9326 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9327 cx.notify();
9328 }
9329
9330 fn on_buffer_event(
9331 &mut self,
9332 multibuffer: Model<MultiBuffer>,
9333 event: &multi_buffer::Event,
9334 cx: &mut ViewContext<Self>,
9335 ) {
9336 match event {
9337 multi_buffer::Event::Edited {
9338 singleton_buffer_edited,
9339 } => {
9340 self.refresh_active_diagnostics(cx);
9341 self.refresh_code_actions(cx);
9342 if self.has_active_inline_completion(cx) {
9343 self.update_visible_inline_completion(cx);
9344 }
9345 cx.emit(EditorEvent::BufferEdited);
9346 cx.emit(SearchEvent::MatchesInvalidated);
9347
9348 if *singleton_buffer_edited {
9349 if let Some(project) = &self.project {
9350 let project = project.read(cx);
9351 let languages_affected = multibuffer
9352 .read(cx)
9353 .all_buffers()
9354 .into_iter()
9355 .filter_map(|buffer| {
9356 let buffer = buffer.read(cx);
9357 let language = buffer.language()?;
9358 if project.is_local()
9359 && project.language_servers_for_buffer(buffer, cx).count() == 0
9360 {
9361 None
9362 } else {
9363 Some(language)
9364 }
9365 })
9366 .cloned()
9367 .collect::<HashSet<_>>();
9368 if !languages_affected.is_empty() {
9369 self.refresh_inlay_hints(
9370 InlayHintRefreshReason::BufferEdited(languages_affected),
9371 cx,
9372 );
9373 }
9374 }
9375 }
9376
9377 let Some(project) = &self.project else { return };
9378 let telemetry = project.read(cx).client().telemetry().clone();
9379 telemetry.log_edit_event("editor");
9380 }
9381 multi_buffer::Event::ExcerptsAdded {
9382 buffer,
9383 predecessor,
9384 excerpts,
9385 } => {
9386 cx.emit(EditorEvent::ExcerptsAdded {
9387 buffer: buffer.clone(),
9388 predecessor: *predecessor,
9389 excerpts: excerpts.clone(),
9390 });
9391 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9392 }
9393 multi_buffer::Event::ExcerptsRemoved { ids } => {
9394 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9395 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9396 }
9397 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9398 multi_buffer::Event::LanguageChanged => {
9399 cx.emit(EditorEvent::Reparsed);
9400 cx.notify();
9401 }
9402 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9403 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9404 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9405 cx.emit(EditorEvent::TitleChanged)
9406 }
9407 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
9408 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9409 multi_buffer::Event::DiagnosticsUpdated => {
9410 self.refresh_active_diagnostics(cx);
9411 }
9412 _ => {}
9413 };
9414 }
9415
9416 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9417 cx.notify();
9418 }
9419
9420 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9421 self.refresh_inline_completion(true, cx);
9422 self.refresh_inlay_hints(
9423 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9424 self.selections.newest_anchor().head(),
9425 &self.buffer.read(cx).snapshot(cx),
9426 cx,
9427 )),
9428 cx,
9429 );
9430 let editor_settings = EditorSettings::get_global(cx);
9431 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9432 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9433 cx.notify();
9434 }
9435
9436 pub fn set_searchable(&mut self, searchable: bool) {
9437 self.searchable = searchable;
9438 }
9439
9440 pub fn searchable(&self) -> bool {
9441 self.searchable
9442 }
9443
9444 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9445 self.open_excerpts_common(true, cx)
9446 }
9447
9448 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9449 self.open_excerpts_common(false, cx)
9450 }
9451
9452 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9453 let buffer = self.buffer.read(cx);
9454 if buffer.is_singleton() {
9455 cx.propagate();
9456 return;
9457 }
9458
9459 let Some(workspace) = self.workspace() else {
9460 cx.propagate();
9461 return;
9462 };
9463
9464 let mut new_selections_by_buffer = HashMap::default();
9465 for selection in self.selections.all::<usize>(cx) {
9466 for (buffer, mut range, _) in
9467 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9468 {
9469 if selection.reversed {
9470 mem::swap(&mut range.start, &mut range.end);
9471 }
9472 new_selections_by_buffer
9473 .entry(buffer)
9474 .or_insert(Vec::new())
9475 .push(range)
9476 }
9477 }
9478
9479 // We defer the pane interaction because we ourselves are a workspace item
9480 // and activating a new item causes the pane to call a method on us reentrantly,
9481 // which panics if we're on the stack.
9482 cx.window_context().defer(move |cx| {
9483 workspace.update(cx, |workspace, cx| {
9484 let pane = if split {
9485 workspace.adjacent_pane(cx)
9486 } else {
9487 workspace.active_pane().clone()
9488 };
9489
9490 for (buffer, ranges) in new_selections_by_buffer {
9491 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9492 editor.update(cx, |editor, cx| {
9493 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9494 s.select_ranges(ranges);
9495 });
9496 });
9497 }
9498 })
9499 });
9500 }
9501
9502 fn jump(
9503 &mut self,
9504 path: ProjectPath,
9505 position: Point,
9506 anchor: language::Anchor,
9507 offset_from_top: u32,
9508 cx: &mut ViewContext<Self>,
9509 ) {
9510 let workspace = self.workspace();
9511 cx.spawn(|_, mut cx| async move {
9512 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9513 let editor = workspace.update(&mut cx, |workspace, cx| {
9514 workspace.open_path(path, None, true, cx)
9515 })?;
9516 let editor = editor
9517 .await?
9518 .downcast::<Editor>()
9519 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9520 .downgrade();
9521 editor.update(&mut cx, |editor, cx| {
9522 let buffer = editor
9523 .buffer()
9524 .read(cx)
9525 .as_singleton()
9526 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9527 let buffer = buffer.read(cx);
9528 let cursor = if buffer.can_resolve(&anchor) {
9529 language::ToPoint::to_point(&anchor, buffer)
9530 } else {
9531 buffer.clip_point(position, Bias::Left)
9532 };
9533
9534 let nav_history = editor.nav_history.take();
9535 editor.change_selections(
9536 Some(Autoscroll::top_relative(offset_from_top as usize)),
9537 cx,
9538 |s| {
9539 s.select_ranges([cursor..cursor]);
9540 },
9541 );
9542 editor.nav_history = nav_history;
9543
9544 anyhow::Ok(())
9545 })??;
9546
9547 anyhow::Ok(())
9548 })
9549 .detach_and_log_err(cx);
9550 }
9551
9552 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9553 let snapshot = self.buffer.read(cx).read(cx);
9554 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9555 Some(
9556 ranges
9557 .iter()
9558 .map(move |range| {
9559 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9560 })
9561 .collect(),
9562 )
9563 }
9564
9565 fn selection_replacement_ranges(
9566 &self,
9567 range: Range<OffsetUtf16>,
9568 cx: &AppContext,
9569 ) -> Vec<Range<OffsetUtf16>> {
9570 let selections = self.selections.all::<OffsetUtf16>(cx);
9571 let newest_selection = selections
9572 .iter()
9573 .max_by_key(|selection| selection.id)
9574 .unwrap();
9575 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9576 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9577 let snapshot = self.buffer.read(cx).read(cx);
9578 selections
9579 .into_iter()
9580 .map(|mut selection| {
9581 selection.start.0 =
9582 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9583 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9584 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9585 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9586 })
9587 .collect()
9588 }
9589
9590 fn report_editor_event(
9591 &self,
9592 operation: &'static str,
9593 file_extension: Option<String>,
9594 cx: &AppContext,
9595 ) {
9596 if cfg!(any(test, feature = "test-support")) {
9597 return;
9598 }
9599
9600 let Some(project) = &self.project else { return };
9601
9602 // If None, we are in a file without an extension
9603 let file = self
9604 .buffer
9605 .read(cx)
9606 .as_singleton()
9607 .and_then(|b| b.read(cx).file());
9608 let file_extension = file_extension.or(file
9609 .as_ref()
9610 .and_then(|file| Path::new(file.file_name(cx)).extension())
9611 .and_then(|e| e.to_str())
9612 .map(|a| a.to_string()));
9613
9614 let vim_mode = cx
9615 .global::<SettingsStore>()
9616 .raw_user_settings()
9617 .get("vim_mode")
9618 == Some(&serde_json::Value::Bool(true));
9619 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9620 let copilot_enabled_for_language = self
9621 .buffer
9622 .read(cx)
9623 .settings_at(0, cx)
9624 .show_copilot_suggestions;
9625
9626 let telemetry = project.read(cx).client().telemetry().clone();
9627 telemetry.report_editor_event(
9628 file_extension,
9629 vim_mode,
9630 operation,
9631 copilot_enabled,
9632 copilot_enabled_for_language,
9633 )
9634 }
9635
9636 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9637 /// with each line being an array of {text, highlight} objects.
9638 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9639 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9640 return;
9641 };
9642
9643 #[derive(Serialize)]
9644 struct Chunk<'a> {
9645 text: String,
9646 highlight: Option<&'a str>,
9647 }
9648
9649 let snapshot = buffer.read(cx).snapshot();
9650 let range = self
9651 .selected_text_range(cx)
9652 .and_then(|selected_range| {
9653 if selected_range.is_empty() {
9654 None
9655 } else {
9656 Some(selected_range)
9657 }
9658 })
9659 .unwrap_or_else(|| 0..snapshot.len());
9660
9661 let chunks = snapshot.chunks(range, true);
9662 let mut lines = Vec::new();
9663 let mut line: VecDeque<Chunk> = VecDeque::new();
9664
9665 let Some(style) = self.style.as_ref() else {
9666 return;
9667 };
9668
9669 for chunk in chunks {
9670 let highlight = chunk
9671 .syntax_highlight_id
9672 .and_then(|id| id.name(&style.syntax));
9673 let mut chunk_lines = chunk.text.split('\n').peekable();
9674 while let Some(text) = chunk_lines.next() {
9675 let mut merged_with_last_token = false;
9676 if let Some(last_token) = line.back_mut() {
9677 if last_token.highlight == highlight {
9678 last_token.text.push_str(text);
9679 merged_with_last_token = true;
9680 }
9681 }
9682
9683 if !merged_with_last_token {
9684 line.push_back(Chunk {
9685 text: text.into(),
9686 highlight,
9687 });
9688 }
9689
9690 if chunk_lines.peek().is_some() {
9691 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9692 line.pop_front();
9693 }
9694 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9695 line.pop_back();
9696 }
9697
9698 lines.push(mem::take(&mut line));
9699 }
9700 }
9701 }
9702
9703 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9704 return;
9705 };
9706 cx.write_to_clipboard(ClipboardItem::new(lines));
9707 }
9708
9709 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9710 &self.inlay_hint_cache
9711 }
9712
9713 pub fn replay_insert_event(
9714 &mut self,
9715 text: &str,
9716 relative_utf16_range: Option<Range<isize>>,
9717 cx: &mut ViewContext<Self>,
9718 ) {
9719 if !self.input_enabled {
9720 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9721 return;
9722 }
9723 if let Some(relative_utf16_range) = relative_utf16_range {
9724 let selections = self.selections.all::<OffsetUtf16>(cx);
9725 self.change_selections(None, cx, |s| {
9726 let new_ranges = selections.into_iter().map(|range| {
9727 let start = OffsetUtf16(
9728 range
9729 .head()
9730 .0
9731 .saturating_add_signed(relative_utf16_range.start),
9732 );
9733 let end = OffsetUtf16(
9734 range
9735 .head()
9736 .0
9737 .saturating_add_signed(relative_utf16_range.end),
9738 );
9739 start..end
9740 });
9741 s.select_ranges(new_ranges);
9742 });
9743 }
9744
9745 self.handle_input(text, cx);
9746 }
9747
9748 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9749 let Some(project) = self.project.as_ref() else {
9750 return false;
9751 };
9752 let project = project.read(cx);
9753
9754 let mut supports = false;
9755 self.buffer().read(cx).for_each_buffer(|buffer| {
9756 if !supports {
9757 supports = project
9758 .language_servers_for_buffer(buffer.read(cx), cx)
9759 .any(
9760 |(_, server)| match server.capabilities().inlay_hint_provider {
9761 Some(lsp::OneOf::Left(enabled)) => enabled,
9762 Some(lsp::OneOf::Right(_)) => true,
9763 None => false,
9764 },
9765 )
9766 }
9767 });
9768 supports
9769 }
9770
9771 pub fn focus(&self, cx: &mut WindowContext) {
9772 cx.focus(&self.focus_handle)
9773 }
9774
9775 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9776 self.focus_handle.is_focused(cx)
9777 }
9778
9779 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9780 cx.emit(EditorEvent::Focused);
9781
9782 if let Some(rename) = self.pending_rename.as_ref() {
9783 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9784 cx.focus(&rename_editor_focus_handle);
9785 } else {
9786 self.blink_manager.update(cx, BlinkManager::enable);
9787 self.show_cursor_names(cx);
9788 self.buffer.update(cx, |buffer, cx| {
9789 buffer.finalize_last_transaction(cx);
9790 if self.leader_peer_id.is_none() {
9791 buffer.set_active_selections(
9792 &self.selections.disjoint_anchors(),
9793 self.selections.line_mode,
9794 self.cursor_shape,
9795 cx,
9796 );
9797 }
9798 });
9799 }
9800 }
9801
9802 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9803 self.blink_manager.update(cx, BlinkManager::disable);
9804 self.buffer
9805 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9806 self.hide_context_menu(cx);
9807 hide_hover(self, cx);
9808 cx.emit(EditorEvent::Blurred);
9809 cx.notify();
9810 }
9811
9812 pub fn register_action<A: Action>(
9813 &mut self,
9814 listener: impl Fn(&A, &mut WindowContext) + 'static,
9815 ) -> &mut Self {
9816 let listener = Arc::new(listener);
9817
9818 self.editor_actions.push(Box::new(move |cx| {
9819 let _view = cx.view().clone();
9820 let cx = cx.window_context();
9821 let listener = listener.clone();
9822 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9823 let action = action.downcast_ref().unwrap();
9824 if phase == DispatchPhase::Bubble {
9825 listener(action, cx)
9826 }
9827 })
9828 }));
9829 self
9830 }
9831}
9832
9833pub trait CollaborationHub {
9834 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9835 fn user_participant_indices<'a>(
9836 &self,
9837 cx: &'a AppContext,
9838 ) -> &'a HashMap<u64, ParticipantIndex>;
9839 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9840}
9841
9842impl CollaborationHub for Model<Project> {
9843 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9844 self.read(cx).collaborators()
9845 }
9846
9847 fn user_participant_indices<'a>(
9848 &self,
9849 cx: &'a AppContext,
9850 ) -> &'a HashMap<u64, ParticipantIndex> {
9851 self.read(cx).user_store().read(cx).participant_indices()
9852 }
9853
9854 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9855 let this = self.read(cx);
9856 let user_ids = this.collaborators().values().map(|c| c.user_id);
9857 this.user_store().read_with(cx, |user_store, cx| {
9858 user_store.participant_names(user_ids, cx)
9859 })
9860 }
9861}
9862
9863pub trait CompletionProvider {
9864 fn completions(
9865 &self,
9866 buffer: &Model<Buffer>,
9867 buffer_position: text::Anchor,
9868 cx: &mut ViewContext<Editor>,
9869 ) -> Task<Result<Vec<Completion>>>;
9870
9871 fn resolve_completions(
9872 &self,
9873 completion_indices: Vec<usize>,
9874 completions: Arc<RwLock<Box<[Completion]>>>,
9875 cx: &mut ViewContext<Editor>,
9876 ) -> Task<Result<bool>>;
9877
9878 fn apply_additional_edits_for_completion(
9879 &self,
9880 buffer: Model<Buffer>,
9881 completion: Completion,
9882 push_to_history: bool,
9883 cx: &mut ViewContext<Editor>,
9884 ) -> Task<Result<Option<language::Transaction>>>;
9885}
9886
9887impl CompletionProvider for Model<Project> {
9888 fn completions(
9889 &self,
9890 buffer: &Model<Buffer>,
9891 buffer_position: text::Anchor,
9892 cx: &mut ViewContext<Editor>,
9893 ) -> Task<Result<Vec<Completion>>> {
9894 self.update(cx, |project, cx| {
9895 project.completions(&buffer, buffer_position, cx)
9896 })
9897 }
9898
9899 fn resolve_completions(
9900 &self,
9901 completion_indices: Vec<usize>,
9902 completions: Arc<RwLock<Box<[Completion]>>>,
9903 cx: &mut ViewContext<Editor>,
9904 ) -> Task<Result<bool>> {
9905 self.update(cx, |project, cx| {
9906 project.resolve_completions(completion_indices, completions, cx)
9907 })
9908 }
9909
9910 fn apply_additional_edits_for_completion(
9911 &self,
9912 buffer: Model<Buffer>,
9913 completion: Completion,
9914 push_to_history: bool,
9915 cx: &mut ViewContext<Editor>,
9916 ) -> Task<Result<Option<language::Transaction>>> {
9917 self.update(cx, |project, cx| {
9918 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9919 })
9920 }
9921}
9922
9923fn inlay_hint_settings(
9924 location: Anchor,
9925 snapshot: &MultiBufferSnapshot,
9926 cx: &mut ViewContext<'_, Editor>,
9927) -> InlayHintSettings {
9928 let file = snapshot.file_at(location);
9929 let language = snapshot.language_at(location);
9930 let settings = all_language_settings(file, cx);
9931 settings
9932 .language(language.map(|l| l.name()).as_deref())
9933 .inlay_hints
9934}
9935
9936fn consume_contiguous_rows(
9937 contiguous_row_selections: &mut Vec<Selection<Point>>,
9938 selection: &Selection<Point>,
9939 display_map: &DisplaySnapshot,
9940 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9941) -> (u32, u32) {
9942 contiguous_row_selections.push(selection.clone());
9943 let start_row = selection.start.row;
9944 let mut end_row = ending_row(selection, display_map);
9945
9946 while let Some(next_selection) = selections.peek() {
9947 if next_selection.start.row <= end_row {
9948 end_row = ending_row(next_selection, display_map);
9949 contiguous_row_selections.push(selections.next().unwrap().clone());
9950 } else {
9951 break;
9952 }
9953 }
9954 (start_row, end_row)
9955}
9956
9957fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9958 if next_selection.end.column > 0 || next_selection.is_empty() {
9959 display_map.next_line_boundary(next_selection.end).0.row + 1
9960 } else {
9961 next_selection.end.row
9962 }
9963}
9964
9965impl EditorSnapshot {
9966 pub fn remote_selections_in_range<'a>(
9967 &'a self,
9968 range: &'a Range<Anchor>,
9969 collaboration_hub: &dyn CollaborationHub,
9970 cx: &'a AppContext,
9971 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9972 let participant_names = collaboration_hub.user_names(cx);
9973 let participant_indices = collaboration_hub.user_participant_indices(cx);
9974 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9975 let collaborators_by_replica_id = collaborators_by_peer_id
9976 .iter()
9977 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9978 .collect::<HashMap<_, _>>();
9979 self.buffer_snapshot
9980 .remote_selections_in_range(range)
9981 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9982 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9983 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9984 let user_name = participant_names.get(&collaborator.user_id).cloned();
9985 Some(RemoteSelection {
9986 replica_id,
9987 selection,
9988 cursor_shape,
9989 line_mode,
9990 participant_index,
9991 peer_id: collaborator.peer_id,
9992 user_name,
9993 })
9994 })
9995 }
9996
9997 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9998 self.display_snapshot.buffer_snapshot.language_at(position)
9999 }
10000
10001 pub fn is_focused(&self) -> bool {
10002 self.is_focused
10003 }
10004
10005 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10006 self.placeholder_text.as_ref()
10007 }
10008
10009 pub fn scroll_position(&self) -> gpui::Point<f32> {
10010 self.scroll_anchor.scroll_position(&self.display_snapshot)
10011 }
10012
10013 pub fn gutter_dimensions(
10014 &self,
10015 font_id: FontId,
10016 font_size: Pixels,
10017 em_width: Pixels,
10018 max_line_number_width: Pixels,
10019 cx: &AppContext,
10020 ) -> GutterDimensions {
10021 if !self.show_gutter {
10022 return GutterDimensions::default();
10023 }
10024 let descent = cx.text_system().descent(font_id, font_size);
10025
10026 let show_git_gutter = matches!(
10027 ProjectSettings::get_global(cx).git.git_gutter,
10028 Some(GitGutterSetting::TrackedFiles)
10029 );
10030 let gutter_settings = EditorSettings::get_global(cx).gutter;
10031
10032 let line_gutter_width = if gutter_settings.line_numbers {
10033 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10034 let min_width_for_number_on_gutter = em_width * 4.0;
10035 max_line_number_width.max(min_width_for_number_on_gutter)
10036 } else {
10037 0.0.into()
10038 };
10039
10040 let git_blame_entries_width = self
10041 .show_git_blame
10042 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10043
10044 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10045 left_padding += if gutter_settings.code_actions {
10046 em_width * 3.0
10047 } else if show_git_gutter && gutter_settings.line_numbers {
10048 em_width * 2.0
10049 } else if show_git_gutter || gutter_settings.line_numbers {
10050 em_width
10051 } else {
10052 px(0.)
10053 };
10054
10055 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
10056 em_width * 4.0
10057 } else if gutter_settings.folds {
10058 em_width * 3.0
10059 } else if gutter_settings.line_numbers {
10060 em_width
10061 } else {
10062 px(0.)
10063 };
10064
10065 GutterDimensions {
10066 left_padding,
10067 right_padding,
10068 width: line_gutter_width + left_padding + right_padding,
10069 margin: -descent,
10070 git_blame_entries_width,
10071 }
10072 }
10073}
10074
10075impl Deref for EditorSnapshot {
10076 type Target = DisplaySnapshot;
10077
10078 fn deref(&self) -> &Self::Target {
10079 &self.display_snapshot
10080 }
10081}
10082
10083#[derive(Clone, Debug, PartialEq, Eq)]
10084pub enum EditorEvent {
10085 InputIgnored {
10086 text: Arc<str>,
10087 },
10088 InputHandled {
10089 utf16_range_to_replace: Option<Range<isize>>,
10090 text: Arc<str>,
10091 },
10092 ExcerptsAdded {
10093 buffer: Model<Buffer>,
10094 predecessor: ExcerptId,
10095 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10096 },
10097 ExcerptsRemoved {
10098 ids: Vec<ExcerptId>,
10099 },
10100 BufferEdited,
10101 Edited,
10102 Reparsed,
10103 Focused,
10104 Blurred,
10105 DirtyChanged,
10106 Saved,
10107 TitleChanged,
10108 DiffBaseChanged,
10109 SelectionsChanged {
10110 local: bool,
10111 },
10112 ScrollPositionChanged {
10113 local: bool,
10114 autoscroll: bool,
10115 },
10116 Closed,
10117 TransactionUndone {
10118 transaction_id: clock::Lamport,
10119 },
10120 TransactionBegun {
10121 transaction_id: clock::Lamport,
10122 },
10123}
10124
10125impl EventEmitter<EditorEvent> for Editor {}
10126
10127impl FocusableView for Editor {
10128 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10129 self.focus_handle.clone()
10130 }
10131}
10132
10133impl Render for Editor {
10134 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10135 let settings = ThemeSettings::get_global(cx);
10136 let text_style = match self.mode {
10137 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10138 color: cx.theme().colors().editor_foreground,
10139 font_family: settings.ui_font.family.clone(),
10140 font_features: settings.ui_font.features,
10141 font_size: rems(0.875).into(),
10142 font_weight: FontWeight::NORMAL,
10143 font_style: FontStyle::Normal,
10144 line_height: relative(settings.buffer_line_height.value()),
10145 background_color: None,
10146 underline: None,
10147 strikethrough: None,
10148 white_space: WhiteSpace::Normal,
10149 },
10150
10151 EditorMode::Full => TextStyle {
10152 color: cx.theme().colors().editor_foreground,
10153 font_family: settings.buffer_font.family.clone(),
10154 font_features: settings.buffer_font.features,
10155 font_size: settings.buffer_font_size(cx).into(),
10156 font_weight: FontWeight::NORMAL,
10157 font_style: FontStyle::Normal,
10158 line_height: relative(settings.buffer_line_height.value()),
10159 background_color: None,
10160 underline: None,
10161 strikethrough: None,
10162 white_space: WhiteSpace::Normal,
10163 },
10164 };
10165
10166 let background = match self.mode {
10167 EditorMode::SingleLine => cx.theme().system().transparent,
10168 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10169 EditorMode::Full => cx.theme().colors().editor_background,
10170 };
10171
10172 EditorElement::new(
10173 cx.view(),
10174 EditorStyle {
10175 background,
10176 local_player: cx.theme().players().local(),
10177 text: text_style,
10178 scrollbar_width: px(12.),
10179 syntax: cx.theme().syntax().clone(),
10180 status: cx.theme().status().clone(),
10181 inlay_hints_style: HighlightStyle {
10182 color: Some(cx.theme().status().hint),
10183 ..HighlightStyle::default()
10184 },
10185 suggestions_style: HighlightStyle {
10186 color: Some(cx.theme().status().predictive),
10187 ..HighlightStyle::default()
10188 },
10189 },
10190 )
10191 }
10192}
10193
10194impl ViewInputHandler for Editor {
10195 fn text_for_range(
10196 &mut self,
10197 range_utf16: Range<usize>,
10198 cx: &mut ViewContext<Self>,
10199 ) -> Option<String> {
10200 Some(
10201 self.buffer
10202 .read(cx)
10203 .read(cx)
10204 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
10205 .collect(),
10206 )
10207 }
10208
10209 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10210 // Prevent the IME menu from appearing when holding down an alphabetic key
10211 // while input is disabled.
10212 if !self.input_enabled {
10213 return None;
10214 }
10215
10216 let range = self.selections.newest::<OffsetUtf16>(cx).range();
10217 Some(range.start.0..range.end.0)
10218 }
10219
10220 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10221 let snapshot = self.buffer.read(cx).read(cx);
10222 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
10223 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
10224 }
10225
10226 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
10227 self.clear_highlights::<InputComposition>(cx);
10228 self.ime_transaction.take();
10229 }
10230
10231 fn replace_text_in_range(
10232 &mut self,
10233 range_utf16: Option<Range<usize>>,
10234 text: &str,
10235 cx: &mut ViewContext<Self>,
10236 ) {
10237 if !self.input_enabled {
10238 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10239 return;
10240 }
10241
10242 self.transact(cx, |this, cx| {
10243 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
10244 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10245 Some(this.selection_replacement_ranges(range_utf16, cx))
10246 } else {
10247 this.marked_text_ranges(cx)
10248 };
10249
10250 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
10251 let newest_selection_id = this.selections.newest_anchor().id;
10252 this.selections
10253 .all::<OffsetUtf16>(cx)
10254 .iter()
10255 .zip(ranges_to_replace.iter())
10256 .find_map(|(selection, range)| {
10257 if selection.id == newest_selection_id {
10258 Some(
10259 (range.start.0 as isize - selection.head().0 as isize)
10260 ..(range.end.0 as isize - selection.head().0 as isize),
10261 )
10262 } else {
10263 None
10264 }
10265 })
10266 });
10267
10268 cx.emit(EditorEvent::InputHandled {
10269 utf16_range_to_replace: range_to_replace,
10270 text: text.into(),
10271 });
10272
10273 if let Some(new_selected_ranges) = new_selected_ranges {
10274 this.change_selections(None, cx, |selections| {
10275 selections.select_ranges(new_selected_ranges)
10276 });
10277 this.backspace(&Default::default(), cx);
10278 }
10279
10280 this.handle_input(text, cx);
10281 });
10282
10283 if let Some(transaction) = self.ime_transaction {
10284 self.buffer.update(cx, |buffer, cx| {
10285 buffer.group_until_transaction(transaction, cx);
10286 });
10287 }
10288
10289 self.unmark_text(cx);
10290 }
10291
10292 fn replace_and_mark_text_in_range(
10293 &mut self,
10294 range_utf16: Option<Range<usize>>,
10295 text: &str,
10296 new_selected_range_utf16: Option<Range<usize>>,
10297 cx: &mut ViewContext<Self>,
10298 ) {
10299 if !self.input_enabled {
10300 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10301 return;
10302 }
10303
10304 let transaction = self.transact(cx, |this, cx| {
10305 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10306 let snapshot = this.buffer.read(cx).read(cx);
10307 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10308 for marked_range in &mut marked_ranges {
10309 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10310 marked_range.start.0 += relative_range_utf16.start;
10311 marked_range.start =
10312 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10313 marked_range.end =
10314 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10315 }
10316 }
10317 Some(marked_ranges)
10318 } else if let Some(range_utf16) = range_utf16 {
10319 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10320 Some(this.selection_replacement_ranges(range_utf16, cx))
10321 } else {
10322 None
10323 };
10324
10325 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10326 let newest_selection_id = this.selections.newest_anchor().id;
10327 this.selections
10328 .all::<OffsetUtf16>(cx)
10329 .iter()
10330 .zip(ranges_to_replace.iter())
10331 .find_map(|(selection, range)| {
10332 if selection.id == newest_selection_id {
10333 Some(
10334 (range.start.0 as isize - selection.head().0 as isize)
10335 ..(range.end.0 as isize - selection.head().0 as isize),
10336 )
10337 } else {
10338 None
10339 }
10340 })
10341 });
10342
10343 cx.emit(EditorEvent::InputHandled {
10344 utf16_range_to_replace: range_to_replace,
10345 text: text.into(),
10346 });
10347
10348 if let Some(ranges) = ranges_to_replace {
10349 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10350 }
10351
10352 let marked_ranges = {
10353 let snapshot = this.buffer.read(cx).read(cx);
10354 this.selections
10355 .disjoint_anchors()
10356 .iter()
10357 .map(|selection| {
10358 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10359 })
10360 .collect::<Vec<_>>()
10361 };
10362
10363 if text.is_empty() {
10364 this.unmark_text(cx);
10365 } else {
10366 this.highlight_text::<InputComposition>(
10367 marked_ranges.clone(),
10368 HighlightStyle {
10369 underline: Some(UnderlineStyle {
10370 thickness: px(1.),
10371 color: None,
10372 wavy: false,
10373 }),
10374 ..Default::default()
10375 },
10376 cx,
10377 );
10378 }
10379
10380 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10381 let use_autoclose = this.use_autoclose;
10382 this.set_use_autoclose(false);
10383 this.handle_input(text, cx);
10384 this.set_use_autoclose(use_autoclose);
10385
10386 if let Some(new_selected_range) = new_selected_range_utf16 {
10387 let snapshot = this.buffer.read(cx).read(cx);
10388 let new_selected_ranges = marked_ranges
10389 .into_iter()
10390 .map(|marked_range| {
10391 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10392 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10393 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10394 snapshot.clip_offset_utf16(new_start, Bias::Left)
10395 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10396 })
10397 .collect::<Vec<_>>();
10398
10399 drop(snapshot);
10400 this.change_selections(None, cx, |selections| {
10401 selections.select_ranges(new_selected_ranges)
10402 });
10403 }
10404 });
10405
10406 self.ime_transaction = self.ime_transaction.or(transaction);
10407 if let Some(transaction) = self.ime_transaction {
10408 self.buffer.update(cx, |buffer, cx| {
10409 buffer.group_until_transaction(transaction, cx);
10410 });
10411 }
10412
10413 if self.text_highlights::<InputComposition>(cx).is_none() {
10414 self.ime_transaction.take();
10415 }
10416 }
10417
10418 fn bounds_for_range(
10419 &mut self,
10420 range_utf16: Range<usize>,
10421 element_bounds: gpui::Bounds<Pixels>,
10422 cx: &mut ViewContext<Self>,
10423 ) -> Option<gpui::Bounds<Pixels>> {
10424 let text_layout_details = self.text_layout_details(cx);
10425 let style = &text_layout_details.editor_style;
10426 let font_id = cx.text_system().resolve_font(&style.text.font());
10427 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10428 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10429 let em_width = cx
10430 .text_system()
10431 .typographic_bounds(font_id, font_size, 'm')
10432 .unwrap()
10433 .size
10434 .width;
10435
10436 let snapshot = self.snapshot(cx);
10437 let scroll_position = snapshot.scroll_position();
10438 let scroll_left = scroll_position.x * em_width;
10439
10440 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10441 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10442 + self.gutter_width;
10443 let y = line_height * (start.row() as f32 - scroll_position.y);
10444
10445 Some(Bounds {
10446 origin: element_bounds.origin + point(x, y),
10447 size: size(em_width, line_height),
10448 })
10449 }
10450}
10451
10452trait SelectionExt {
10453 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10454 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10455 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10456 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10457 -> Range<u32>;
10458}
10459
10460impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10461 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10462 let start = self.start.to_point(buffer);
10463 let end = self.end.to_point(buffer);
10464 if self.reversed {
10465 end..start
10466 } else {
10467 start..end
10468 }
10469 }
10470
10471 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10472 let start = self.start.to_offset(buffer);
10473 let end = self.end.to_offset(buffer);
10474 if self.reversed {
10475 end..start
10476 } else {
10477 start..end
10478 }
10479 }
10480
10481 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10482 let start = self
10483 .start
10484 .to_point(&map.buffer_snapshot)
10485 .to_display_point(map);
10486 let end = self
10487 .end
10488 .to_point(&map.buffer_snapshot)
10489 .to_display_point(map);
10490 if self.reversed {
10491 end..start
10492 } else {
10493 start..end
10494 }
10495 }
10496
10497 fn spanned_rows(
10498 &self,
10499 include_end_if_at_line_start: bool,
10500 map: &DisplaySnapshot,
10501 ) -> Range<u32> {
10502 let start = self.start.to_point(&map.buffer_snapshot);
10503 let mut end = self.end.to_point(&map.buffer_snapshot);
10504 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10505 end.row -= 1;
10506 }
10507
10508 let buffer_start = map.prev_line_boundary(start).0;
10509 let buffer_end = map.next_line_boundary(end).0;
10510 buffer_start.row..buffer_end.row + 1
10511 }
10512}
10513
10514impl<T: InvalidationRegion> InvalidationStack<T> {
10515 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10516 where
10517 S: Clone + ToOffset,
10518 {
10519 while let Some(region) = self.last() {
10520 let all_selections_inside_invalidation_ranges =
10521 if selections.len() == region.ranges().len() {
10522 selections
10523 .iter()
10524 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10525 .all(|(selection, invalidation_range)| {
10526 let head = selection.head().to_offset(buffer);
10527 invalidation_range.start <= head && invalidation_range.end >= head
10528 })
10529 } else {
10530 false
10531 };
10532
10533 if all_selections_inside_invalidation_ranges {
10534 break;
10535 } else {
10536 self.pop();
10537 }
10538 }
10539 }
10540}
10541
10542impl<T> Default for InvalidationStack<T> {
10543 fn default() -> Self {
10544 Self(Default::default())
10545 }
10546}
10547
10548impl<T> Deref for InvalidationStack<T> {
10549 type Target = Vec<T>;
10550
10551 fn deref(&self) -> &Self::Target {
10552 &self.0
10553 }
10554}
10555
10556impl<T> DerefMut for InvalidationStack<T> {
10557 fn deref_mut(&mut self) -> &mut Self::Target {
10558 &mut self.0
10559 }
10560}
10561
10562impl InvalidationRegion for SnippetState {
10563 fn ranges(&self) -> &[Range<Anchor>] {
10564 &self.ranges[self.active_index]
10565 }
10566}
10567
10568pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10569 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10570
10571 Arc::new(move |cx: &mut BlockContext| {
10572 let group_id: SharedString = cx.block_id.to_string().into();
10573
10574 let mut text_style = cx.text_style().clone();
10575 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10576
10577 let multi_line_diagnostic = diagnostic.message.contains('\n');
10578
10579 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
10580 if multi_line_diagnostic {
10581 v_flex()
10582 } else {
10583 h_flex()
10584 }
10585 .children(diagnostic.is_primary.then(|| {
10586 IconButton::new(("close-block", block_id), IconName::XCircle)
10587 .icon_color(Color::Muted)
10588 .size(ButtonSize::Compact)
10589 .style(ButtonStyle::Transparent)
10590 .visible_on_hover(group_id.clone())
10591 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
10592 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
10593 }))
10594 .child(
10595 IconButton::new(("copy-block", block_id), IconName::Copy)
10596 .icon_color(Color::Muted)
10597 .size(ButtonSize::Compact)
10598 .style(ButtonStyle::Transparent)
10599 .visible_on_hover(group_id.clone())
10600 .on_click({
10601 let message = diagnostic.message.clone();
10602 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10603 })
10604 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10605 )
10606 };
10607
10608 let icon_size = buttons(&diagnostic, cx.block_id)
10609 .into_any_element()
10610 .measure(AvailableSpace::min_size(), cx);
10611
10612 h_flex()
10613 .id(cx.block_id)
10614 .group(group_id.clone())
10615 .relative()
10616 .size_full()
10617 .pl(cx.gutter_dimensions.width)
10618 .w(cx.max_width + cx.gutter_dimensions.width)
10619 .child(
10620 div()
10621 .flex()
10622 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
10623 .flex_shrink(),
10624 )
10625 .child(buttons(&diagnostic, cx.block_id))
10626 .child(div().flex().flex_shrink_0().child(
10627 StyledText::new(text_without_backticks.clone()).with_highlights(
10628 &text_style,
10629 code_ranges.iter().map(|range| {
10630 (
10631 range.clone(),
10632 HighlightStyle {
10633 font_weight: Some(FontWeight::BOLD),
10634 ..Default::default()
10635 },
10636 )
10637 }),
10638 ),
10639 ))
10640 .into_any_element()
10641 })
10642}
10643
10644pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10645 let mut text_without_backticks = String::new();
10646 let mut code_ranges = Vec::new();
10647
10648 if let Some(source) = &diagnostic.source {
10649 text_without_backticks.push_str(&source);
10650 code_ranges.push(0..source.len());
10651 text_without_backticks.push_str(": ");
10652 }
10653
10654 let mut prev_offset = 0;
10655 let mut in_code_block = false;
10656 for (ix, _) in diagnostic
10657 .message
10658 .match_indices('`')
10659 .chain([(diagnostic.message.len(), "")])
10660 {
10661 let prev_len = text_without_backticks.len();
10662 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10663 prev_offset = ix + 1;
10664 if in_code_block {
10665 code_ranges.push(prev_len..text_without_backticks.len());
10666 in_code_block = false;
10667 } else {
10668 in_code_block = true;
10669 }
10670 }
10671
10672 (text_without_backticks.into(), code_ranges)
10673}
10674
10675fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10676 match (severity, valid) {
10677 (DiagnosticSeverity::ERROR, true) => colors.error,
10678 (DiagnosticSeverity::ERROR, false) => colors.error,
10679 (DiagnosticSeverity::WARNING, true) => colors.warning,
10680 (DiagnosticSeverity::WARNING, false) => colors.warning,
10681 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10682 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10683 (DiagnosticSeverity::HINT, true) => colors.info,
10684 (DiagnosticSeverity::HINT, false) => colors.info,
10685 _ => colors.ignored,
10686 }
10687}
10688
10689pub fn styled_runs_for_code_label<'a>(
10690 label: &'a CodeLabel,
10691 syntax_theme: &'a theme::SyntaxTheme,
10692) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10693 let fade_out = HighlightStyle {
10694 fade_out: Some(0.35),
10695 ..Default::default()
10696 };
10697
10698 let mut prev_end = label.filter_range.end;
10699 label
10700 .runs
10701 .iter()
10702 .enumerate()
10703 .flat_map(move |(ix, (range, highlight_id))| {
10704 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10705 style
10706 } else {
10707 return Default::default();
10708 };
10709 let mut muted_style = style;
10710 muted_style.highlight(fade_out);
10711
10712 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10713 if range.start >= label.filter_range.end {
10714 if range.start > prev_end {
10715 runs.push((prev_end..range.start, fade_out));
10716 }
10717 runs.push((range.clone(), muted_style));
10718 } else if range.end <= label.filter_range.end {
10719 runs.push((range.clone(), style));
10720 } else {
10721 runs.push((range.start..label.filter_range.end, style));
10722 runs.push((label.filter_range.end..range.end, muted_style));
10723 }
10724 prev_end = cmp::max(prev_end, range.end);
10725
10726 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10727 runs.push((prev_end..label.text.len(), fade_out));
10728 }
10729
10730 runs
10731 })
10732}
10733
10734pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
10735 let mut prev_index = 0;
10736 let mut prev_codepoint: Option<char> = None;
10737 text.char_indices()
10738 .chain([(text.len(), '\0')])
10739 .filter_map(move |(index, codepoint)| {
10740 let prev_codepoint = prev_codepoint.replace(codepoint)?;
10741 let is_boundary = index == text.len()
10742 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
10743 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
10744 if is_boundary {
10745 let chunk = &text[prev_index..index];
10746 prev_index = index;
10747 Some(chunk)
10748 } else {
10749 None
10750 }
10751 })
10752}
10753
10754trait RangeToAnchorExt {
10755 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10756}
10757
10758impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10759 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10760 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10761 }
10762}