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
3762 } else {
3763 Vec::new()
3764 };
3765
3766 this.update(&mut cx, |this, cx| {
3767 this.available_code_actions = if actions.is_empty() {
3768 None
3769 } else {
3770 Some((start_buffer, actions.into()))
3771 };
3772 cx.notify();
3773 })
3774 .log_err();
3775 }));
3776 None
3777 }
3778
3779 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3780 if self.pending_rename.is_some() {
3781 return None;
3782 }
3783
3784 let project = self.project.clone()?;
3785 let buffer = self.buffer.read(cx);
3786 let newest_selection = self.selections.newest_anchor().clone();
3787 let cursor_position = newest_selection.head();
3788 let (cursor_buffer, cursor_buffer_position) =
3789 buffer.text_anchor_for_position(cursor_position, cx)?;
3790 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3791 if cursor_buffer != tail_buffer {
3792 return None;
3793 }
3794
3795 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3796 cx.background_executor()
3797 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3798 .await;
3799
3800 let highlights = if let Some(highlights) = project
3801 .update(&mut cx, |project, cx| {
3802 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3803 })
3804 .log_err()
3805 {
3806 highlights.await.log_err()
3807 } else {
3808 None
3809 };
3810
3811 if let Some(highlights) = highlights {
3812 this.update(&mut cx, |this, cx| {
3813 if this.pending_rename.is_some() {
3814 return;
3815 }
3816
3817 let buffer_id = cursor_position.buffer_id;
3818 let buffer = this.buffer.read(cx);
3819 if !buffer
3820 .text_anchor_for_position(cursor_position, cx)
3821 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3822 {
3823 return;
3824 }
3825
3826 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3827 let mut write_ranges = Vec::new();
3828 let mut read_ranges = Vec::new();
3829 for highlight in highlights {
3830 for (excerpt_id, excerpt_range) in
3831 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3832 {
3833 let start = highlight
3834 .range
3835 .start
3836 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3837 let end = highlight
3838 .range
3839 .end
3840 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3841 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3842 continue;
3843 }
3844
3845 let range = Anchor {
3846 buffer_id,
3847 excerpt_id: excerpt_id,
3848 text_anchor: start,
3849 }..Anchor {
3850 buffer_id,
3851 excerpt_id,
3852 text_anchor: end,
3853 };
3854 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3855 write_ranges.push(range);
3856 } else {
3857 read_ranges.push(range);
3858 }
3859 }
3860 }
3861
3862 this.highlight_background::<DocumentHighlightRead>(
3863 read_ranges,
3864 |theme| theme.editor_document_highlight_read_background,
3865 cx,
3866 );
3867 this.highlight_background::<DocumentHighlightWrite>(
3868 write_ranges,
3869 |theme| theme.editor_document_highlight_write_background,
3870 cx,
3871 );
3872 cx.notify();
3873 })
3874 .log_err();
3875 }
3876 }));
3877 None
3878 }
3879
3880 fn refresh_inline_completion(
3881 &mut self,
3882 debounce: bool,
3883 cx: &mut ViewContext<Self>,
3884 ) -> Option<()> {
3885 let provider = self.inline_completion_provider()?;
3886 let cursor = self.selections.newest_anchor().head();
3887 let (buffer, cursor_buffer_position) =
3888 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3889 if !self.show_inline_completions
3890 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
3891 {
3892 self.clear_inline_completion(cx);
3893 return None;
3894 }
3895
3896 self.update_visible_inline_completion(cx);
3897 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
3898 Some(())
3899 }
3900
3901 fn cycle_inline_completion(
3902 &mut self,
3903 direction: Direction,
3904 cx: &mut ViewContext<Self>,
3905 ) -> Option<()> {
3906 let provider = self.inline_completion_provider()?;
3907 let cursor = self.selections.newest_anchor().head();
3908 let (buffer, cursor_buffer_position) =
3909 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3910 if !self.show_inline_completions
3911 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
3912 {
3913 return None;
3914 }
3915
3916 provider.cycle(buffer, cursor_buffer_position, direction, cx);
3917 self.update_visible_inline_completion(cx);
3918
3919 Some(())
3920 }
3921
3922 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
3923 if !self.has_active_inline_completion(cx) {
3924 self.refresh_inline_completion(false, cx);
3925 return;
3926 }
3927
3928 self.update_visible_inline_completion(cx);
3929 }
3930
3931 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3932 self.show_cursor_names(cx);
3933 }
3934
3935 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3936 self.show_cursor_names = true;
3937 cx.notify();
3938 cx.spawn(|this, mut cx| async move {
3939 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3940 this.update(&mut cx, |this, cx| {
3941 this.show_cursor_names = false;
3942 cx.notify()
3943 })
3944 .ok()
3945 })
3946 .detach();
3947 }
3948
3949 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
3950 if self.has_active_inline_completion(cx) {
3951 self.cycle_inline_completion(Direction::Next, cx);
3952 } else {
3953 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
3954 if is_copilot_disabled {
3955 cx.propagate();
3956 }
3957 }
3958 }
3959
3960 pub fn previous_inline_completion(
3961 &mut self,
3962 _: &PreviousInlineCompletion,
3963 cx: &mut ViewContext<Self>,
3964 ) {
3965 if self.has_active_inline_completion(cx) {
3966 self.cycle_inline_completion(Direction::Prev, cx);
3967 } else {
3968 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
3969 if is_copilot_disabled {
3970 cx.propagate();
3971 }
3972 }
3973 }
3974
3975 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3976 if let Some(completion) = self.take_active_inline_completion(cx) {
3977 if let Some(provider) = self.inline_completion_provider() {
3978 provider.accept(cx);
3979 }
3980
3981 cx.emit(EditorEvent::InputHandled {
3982 utf16_range_to_replace: None,
3983 text: completion.text.to_string().into(),
3984 });
3985 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
3986 cx.notify();
3987 true
3988 } else {
3989 false
3990 }
3991 }
3992
3993 pub fn accept_partial_inline_completion(
3994 &mut self,
3995 _: &AcceptPartialInlineCompletion,
3996 cx: &mut ViewContext<Self>,
3997 ) {
3998 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
3999 if let Some(completion) = self.take_active_inline_completion(cx) {
4000 let mut partial_completion = completion
4001 .text
4002 .chars()
4003 .by_ref()
4004 .take_while(|c| c.is_alphabetic())
4005 .collect::<String>();
4006 if partial_completion.is_empty() {
4007 partial_completion = completion
4008 .text
4009 .chars()
4010 .by_ref()
4011 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4012 .collect::<String>();
4013 }
4014
4015 cx.emit(EditorEvent::InputHandled {
4016 utf16_range_to_replace: None,
4017 text: partial_completion.clone().into(),
4018 });
4019 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4020 self.refresh_inline_completion(true, cx);
4021 cx.notify();
4022 }
4023 }
4024 }
4025
4026 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4027 if let Some(provider) = self.inline_completion_provider() {
4028 provider.discard(cx);
4029 }
4030
4031 self.take_active_inline_completion(cx).is_some()
4032 }
4033
4034 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4035 if let Some(completion) = self.active_inline_completion.as_ref() {
4036 let buffer = self.buffer.read(cx).read(cx);
4037 completion.position.is_valid(&buffer)
4038 } else {
4039 false
4040 }
4041 }
4042
4043 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4044 let completion = self.active_inline_completion.take()?;
4045 self.display_map.update(cx, |map, cx| {
4046 map.splice_inlays(vec![completion.id], Default::default(), cx);
4047 });
4048 let buffer = self.buffer.read(cx).read(cx);
4049
4050 if completion.position.is_valid(&buffer) {
4051 Some(completion)
4052 } else {
4053 None
4054 }
4055 }
4056
4057 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4058 let selection = self.selections.newest_anchor();
4059 let cursor = selection.head();
4060
4061 if self.context_menu.read().is_none()
4062 && self.completion_tasks.is_empty()
4063 && selection.start == selection.end
4064 {
4065 if let Some(provider) = self.inline_completion_provider() {
4066 if let Some((buffer, cursor_buffer_position)) =
4067 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4068 {
4069 if let Some(text) =
4070 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4071 {
4072 let text = Rope::from(text);
4073 let mut to_remove = Vec::new();
4074 if let Some(completion) = self.active_inline_completion.take() {
4075 to_remove.push(completion.id);
4076 }
4077
4078 let completion_inlay =
4079 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4080 self.active_inline_completion = Some(completion_inlay.clone());
4081 self.display_map.update(cx, move |map, cx| {
4082 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4083 });
4084 cx.notify();
4085 return;
4086 }
4087 }
4088 }
4089 }
4090
4091 self.discard_inline_completion(cx);
4092 }
4093
4094 fn clear_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4095 if let Some(old_completion) = self.active_inline_completion.take() {
4096 self.splice_inlays(vec![old_completion.id], Vec::new(), cx);
4097 }
4098 self.discard_inline_completion(cx);
4099 }
4100
4101 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4102 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4103 }
4104
4105 pub fn render_code_actions_indicator(
4106 &self,
4107 _style: &EditorStyle,
4108 is_active: bool,
4109 cx: &mut ViewContext<Self>,
4110 ) -> Option<IconButton> {
4111 if self.available_code_actions.is_some() {
4112 Some(
4113 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4114 .icon_size(IconSize::XSmall)
4115 .size(ui::ButtonSize::None)
4116 .icon_color(Color::Muted)
4117 .selected(is_active)
4118 .on_click(cx.listener(|editor, _e, cx| {
4119 editor.toggle_code_actions(
4120 &ToggleCodeActions {
4121 deployed_from_indicator: true,
4122 },
4123 cx,
4124 );
4125 })),
4126 )
4127 } else {
4128 None
4129 }
4130 }
4131
4132 pub fn render_fold_indicators(
4133 &mut self,
4134 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4135 _style: &EditorStyle,
4136 gutter_hovered: bool,
4137 _line_height: Pixels,
4138 _gutter_margin: Pixels,
4139 cx: &mut ViewContext<Self>,
4140 ) -> Vec<Option<AnyElement>> {
4141 fold_data
4142 .iter()
4143 .enumerate()
4144 .map(|(ix, fold_data)| {
4145 fold_data
4146 .map(|(fold_status, buffer_row, active)| {
4147 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4148 IconButton::new(ix, ui::IconName::ChevronDown)
4149 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4150 FoldStatus::Folded => {
4151 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4152 }
4153 FoldStatus::Foldable => {
4154 this.fold_at(&FoldAt { buffer_row }, cx);
4155 }
4156 }))
4157 .icon_color(ui::Color::Muted)
4158 .icon_size(ui::IconSize::Small)
4159 .selected(fold_status == FoldStatus::Folded)
4160 .selected_icon(ui::IconName::ChevronRight)
4161 .size(ui::ButtonSize::None)
4162 .into_any_element()
4163 })
4164 })
4165 .flatten()
4166 })
4167 .collect()
4168 }
4169
4170 pub fn context_menu_visible(&self) -> bool {
4171 self.context_menu
4172 .read()
4173 .as_ref()
4174 .map_or(false, |menu| menu.visible())
4175 }
4176
4177 pub fn render_context_menu(
4178 &self,
4179 cursor_position: DisplayPoint,
4180 style: &EditorStyle,
4181 max_height: Pixels,
4182 cx: &mut ViewContext<Editor>,
4183 ) -> Option<(DisplayPoint, AnyElement)> {
4184 self.context_menu.read().as_ref().map(|menu| {
4185 menu.render(
4186 cursor_position,
4187 style,
4188 max_height,
4189 self.workspace.as_ref().map(|(w, _)| w.clone()),
4190 cx,
4191 )
4192 })
4193 }
4194
4195 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4196 cx.notify();
4197 self.completion_tasks.clear();
4198 let context_menu = self.context_menu.write().take();
4199 if context_menu.is_some() {
4200 self.update_visible_inline_completion(cx);
4201 }
4202 context_menu
4203 }
4204
4205 pub fn insert_snippet(
4206 &mut self,
4207 insertion_ranges: &[Range<usize>],
4208 snippet: Snippet,
4209 cx: &mut ViewContext<Self>,
4210 ) -> Result<()> {
4211 let tabstops = self.buffer.update(cx, |buffer, cx| {
4212 let snippet_text: Arc<str> = snippet.text.clone().into();
4213 buffer.edit(
4214 insertion_ranges
4215 .iter()
4216 .cloned()
4217 .map(|range| (range, snippet_text.clone())),
4218 Some(AutoindentMode::EachLine),
4219 cx,
4220 );
4221
4222 let snapshot = &*buffer.read(cx);
4223 let snippet = &snippet;
4224 snippet
4225 .tabstops
4226 .iter()
4227 .map(|tabstop| {
4228 let mut tabstop_ranges = tabstop
4229 .iter()
4230 .flat_map(|tabstop_range| {
4231 let mut delta = 0_isize;
4232 insertion_ranges.iter().map(move |insertion_range| {
4233 let insertion_start = insertion_range.start as isize + delta;
4234 delta +=
4235 snippet.text.len() as isize - insertion_range.len() as isize;
4236
4237 let start = snapshot.anchor_before(
4238 (insertion_start + tabstop_range.start) as usize,
4239 );
4240 let end = snapshot
4241 .anchor_after((insertion_start + tabstop_range.end) as usize);
4242 start..end
4243 })
4244 })
4245 .collect::<Vec<_>>();
4246 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4247 tabstop_ranges
4248 })
4249 .collect::<Vec<_>>()
4250 });
4251
4252 if let Some(tabstop) = tabstops.first() {
4253 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4254 s.select_ranges(tabstop.iter().cloned());
4255 });
4256 self.snippet_stack.push(SnippetState {
4257 active_index: 0,
4258 ranges: tabstops,
4259 });
4260
4261 // Check whether the just-entered snippet ends with an auto-closable bracket.
4262 if self.autoclose_regions.is_empty() {
4263 let snapshot = self.buffer.read(cx).snapshot(cx);
4264 for selection in &mut self.selections.all::<Point>(cx) {
4265 let selection_head = selection.head();
4266 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4267 continue;
4268 };
4269
4270 let mut bracket_pair = None;
4271 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4272 let prev_chars = snapshot
4273 .reversed_chars_at(selection_head)
4274 .collect::<String>();
4275 for (pair, enabled) in scope.brackets() {
4276 if enabled
4277 && pair.close
4278 && prev_chars.starts_with(pair.start.as_str())
4279 && next_chars.starts_with(pair.end.as_str())
4280 {
4281 bracket_pair = Some(pair.clone());
4282 break;
4283 }
4284 }
4285 if let Some(pair) = bracket_pair {
4286 let start = snapshot.anchor_after(selection_head);
4287 let end = snapshot.anchor_after(selection_head);
4288 self.autoclose_regions.push(AutocloseRegion {
4289 selection_id: selection.id,
4290 range: start..end,
4291 pair,
4292 });
4293 }
4294 }
4295 }
4296 }
4297 Ok(())
4298 }
4299
4300 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4301 self.move_to_snippet_tabstop(Bias::Right, cx)
4302 }
4303
4304 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4305 self.move_to_snippet_tabstop(Bias::Left, cx)
4306 }
4307
4308 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4309 if let Some(mut snippet) = self.snippet_stack.pop() {
4310 match bias {
4311 Bias::Left => {
4312 if snippet.active_index > 0 {
4313 snippet.active_index -= 1;
4314 } else {
4315 self.snippet_stack.push(snippet);
4316 return false;
4317 }
4318 }
4319 Bias::Right => {
4320 if snippet.active_index + 1 < snippet.ranges.len() {
4321 snippet.active_index += 1;
4322 } else {
4323 self.snippet_stack.push(snippet);
4324 return false;
4325 }
4326 }
4327 }
4328 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4329 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4330 s.select_anchor_ranges(current_ranges.iter().cloned())
4331 });
4332 // If snippet state is not at the last tabstop, push it back on the stack
4333 if snippet.active_index + 1 < snippet.ranges.len() {
4334 self.snippet_stack.push(snippet);
4335 }
4336 return true;
4337 }
4338 }
4339
4340 false
4341 }
4342
4343 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4344 self.transact(cx, |this, cx| {
4345 this.select_all(&SelectAll, cx);
4346 this.insert("", cx);
4347 });
4348 }
4349
4350 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4351 self.transact(cx, |this, cx| {
4352 this.select_autoclose_pair(cx);
4353 let mut selections = this.selections.all::<Point>(cx);
4354 if !this.selections.line_mode {
4355 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4356 for selection in &mut selections {
4357 if selection.is_empty() {
4358 let old_head = selection.head();
4359 let mut new_head =
4360 movement::left(&display_map, old_head.to_display_point(&display_map))
4361 .to_point(&display_map);
4362 if let Some((buffer, line_buffer_range)) = display_map
4363 .buffer_snapshot
4364 .buffer_line_for_row(old_head.row)
4365 {
4366 let indent_size =
4367 buffer.indent_size_for_line(line_buffer_range.start.row);
4368 let indent_len = match indent_size.kind {
4369 IndentKind::Space => {
4370 buffer.settings_at(line_buffer_range.start, cx).tab_size
4371 }
4372 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4373 };
4374 if old_head.column <= indent_size.len && old_head.column > 0 {
4375 let indent_len = indent_len.get();
4376 new_head = cmp::min(
4377 new_head,
4378 Point::new(
4379 old_head.row,
4380 ((old_head.column - 1) / indent_len) * indent_len,
4381 ),
4382 );
4383 }
4384 }
4385
4386 selection.set_head(new_head, SelectionGoal::None);
4387 }
4388 }
4389 }
4390
4391 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4392 this.insert("", cx);
4393 this.refresh_inline_completion(true, cx);
4394 });
4395 }
4396
4397 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4398 self.transact(cx, |this, cx| {
4399 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4400 let line_mode = s.line_mode;
4401 s.move_with(|map, selection| {
4402 if selection.is_empty() && !line_mode {
4403 let cursor = movement::right(map, selection.head());
4404 selection.end = cursor;
4405 selection.reversed = true;
4406 selection.goal = SelectionGoal::None;
4407 }
4408 })
4409 });
4410 this.insert("", cx);
4411 this.refresh_inline_completion(true, cx);
4412 });
4413 }
4414
4415 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4416 if self.move_to_prev_snippet_tabstop(cx) {
4417 return;
4418 }
4419
4420 self.outdent(&Outdent, cx);
4421 }
4422
4423 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4424 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4425 return;
4426 }
4427
4428 let mut selections = self.selections.all_adjusted(cx);
4429 let buffer = self.buffer.read(cx);
4430 let snapshot = buffer.snapshot(cx);
4431 let rows_iter = selections.iter().map(|s| s.head().row);
4432 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4433
4434 let mut edits = Vec::new();
4435 let mut prev_edited_row = 0;
4436 let mut row_delta = 0;
4437 for selection in &mut selections {
4438 if selection.start.row != prev_edited_row {
4439 row_delta = 0;
4440 }
4441 prev_edited_row = selection.end.row;
4442
4443 // If the selection is non-empty, then increase the indentation of the selected lines.
4444 if !selection.is_empty() {
4445 row_delta =
4446 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4447 continue;
4448 }
4449
4450 // If the selection is empty and the cursor is in the leading whitespace before the
4451 // suggested indentation, then auto-indent the line.
4452 let cursor = selection.head();
4453 let current_indent = snapshot.indent_size_for_line(cursor.row);
4454 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4455 if cursor.column < suggested_indent.len
4456 && cursor.column <= current_indent.len
4457 && current_indent.len <= suggested_indent.len
4458 {
4459 selection.start = Point::new(cursor.row, suggested_indent.len);
4460 selection.end = selection.start;
4461 if row_delta == 0 {
4462 edits.extend(Buffer::edit_for_indent_size_adjustment(
4463 cursor.row,
4464 current_indent,
4465 suggested_indent,
4466 ));
4467 row_delta = suggested_indent.len - current_indent.len;
4468 }
4469 continue;
4470 }
4471 }
4472
4473 // Accept copilot completion if there is only one selection and the cursor is not
4474 // in the leading whitespace.
4475 if self.selections.count() == 1
4476 && cursor.column >= current_indent.len
4477 && self.has_active_inline_completion(cx)
4478 {
4479 self.accept_inline_completion(cx);
4480 return;
4481 }
4482
4483 // Otherwise, insert a hard or soft tab.
4484 let settings = buffer.settings_at(cursor, cx);
4485 let tab_size = if settings.hard_tabs {
4486 IndentSize::tab()
4487 } else {
4488 let tab_size = settings.tab_size.get();
4489 let char_column = snapshot
4490 .text_for_range(Point::new(cursor.row, 0)..cursor)
4491 .flat_map(str::chars)
4492 .count()
4493 + row_delta as usize;
4494 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4495 IndentSize::spaces(chars_to_next_tab_stop)
4496 };
4497 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4498 selection.end = selection.start;
4499 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4500 row_delta += tab_size.len;
4501 }
4502
4503 self.transact(cx, |this, cx| {
4504 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4505 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4506 this.refresh_inline_completion(true, cx);
4507 });
4508 }
4509
4510 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4511 if self.read_only(cx) {
4512 return;
4513 }
4514 let mut selections = self.selections.all::<Point>(cx);
4515 let mut prev_edited_row = 0;
4516 let mut row_delta = 0;
4517 let mut edits = Vec::new();
4518 let buffer = self.buffer.read(cx);
4519 let snapshot = buffer.snapshot(cx);
4520 for selection in &mut selections {
4521 if selection.start.row != prev_edited_row {
4522 row_delta = 0;
4523 }
4524 prev_edited_row = selection.end.row;
4525
4526 row_delta =
4527 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4528 }
4529
4530 self.transact(cx, |this, cx| {
4531 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4532 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4533 });
4534 }
4535
4536 fn indent_selection(
4537 buffer: &MultiBuffer,
4538 snapshot: &MultiBufferSnapshot,
4539 selection: &mut Selection<Point>,
4540 edits: &mut Vec<(Range<Point>, String)>,
4541 delta_for_start_row: u32,
4542 cx: &AppContext,
4543 ) -> u32 {
4544 let settings = buffer.settings_at(selection.start, cx);
4545 let tab_size = settings.tab_size.get();
4546 let indent_kind = if settings.hard_tabs {
4547 IndentKind::Tab
4548 } else {
4549 IndentKind::Space
4550 };
4551 let mut start_row = selection.start.row;
4552 let mut end_row = selection.end.row + 1;
4553
4554 // If a selection ends at the beginning of a line, don't indent
4555 // that last line.
4556 if selection.end.column == 0 && selection.end.row > selection.start.row {
4557 end_row -= 1;
4558 }
4559
4560 // Avoid re-indenting a row that has already been indented by a
4561 // previous selection, but still update this selection's column
4562 // to reflect that indentation.
4563 if delta_for_start_row > 0 {
4564 start_row += 1;
4565 selection.start.column += delta_for_start_row;
4566 if selection.end.row == selection.start.row {
4567 selection.end.column += delta_for_start_row;
4568 }
4569 }
4570
4571 let mut delta_for_end_row = 0;
4572 for row in start_row..end_row {
4573 let current_indent = snapshot.indent_size_for_line(row);
4574 let indent_delta = match (current_indent.kind, indent_kind) {
4575 (IndentKind::Space, IndentKind::Space) => {
4576 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4577 IndentSize::spaces(columns_to_next_tab_stop)
4578 }
4579 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4580 (_, IndentKind::Tab) => IndentSize::tab(),
4581 };
4582
4583 let row_start = Point::new(row, 0);
4584 edits.push((
4585 row_start..row_start,
4586 indent_delta.chars().collect::<String>(),
4587 ));
4588
4589 // Update this selection's endpoints to reflect the indentation.
4590 if row == selection.start.row {
4591 selection.start.column += indent_delta.len;
4592 }
4593 if row == selection.end.row {
4594 selection.end.column += indent_delta.len;
4595 delta_for_end_row = indent_delta.len;
4596 }
4597 }
4598
4599 if selection.start.row == selection.end.row {
4600 delta_for_start_row + delta_for_end_row
4601 } else {
4602 delta_for_end_row
4603 }
4604 }
4605
4606 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4607 if self.read_only(cx) {
4608 return;
4609 }
4610 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4611 let selections = self.selections.all::<Point>(cx);
4612 let mut deletion_ranges = Vec::new();
4613 let mut last_outdent = None;
4614 {
4615 let buffer = self.buffer.read(cx);
4616 let snapshot = buffer.snapshot(cx);
4617 for selection in &selections {
4618 let settings = buffer.settings_at(selection.start, cx);
4619 let tab_size = settings.tab_size.get();
4620 let mut rows = selection.spanned_rows(false, &display_map);
4621
4622 // Avoid re-outdenting a row that has already been outdented by a
4623 // previous selection.
4624 if let Some(last_row) = last_outdent {
4625 if last_row == rows.start {
4626 rows.start += 1;
4627 }
4628 }
4629
4630 for row in rows {
4631 let indent_size = snapshot.indent_size_for_line(row);
4632 if indent_size.len > 0 {
4633 let deletion_len = match indent_size.kind {
4634 IndentKind::Space => {
4635 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4636 if columns_to_prev_tab_stop == 0 {
4637 tab_size
4638 } else {
4639 columns_to_prev_tab_stop
4640 }
4641 }
4642 IndentKind::Tab => 1,
4643 };
4644 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4645 last_outdent = Some(row);
4646 }
4647 }
4648 }
4649 }
4650
4651 self.transact(cx, |this, cx| {
4652 this.buffer.update(cx, |buffer, cx| {
4653 let empty_str: Arc<str> = "".into();
4654 buffer.edit(
4655 deletion_ranges
4656 .into_iter()
4657 .map(|range| (range, empty_str.clone())),
4658 None,
4659 cx,
4660 );
4661 });
4662 let selections = this.selections.all::<usize>(cx);
4663 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4664 });
4665 }
4666
4667 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4668 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4669 let selections = self.selections.all::<Point>(cx);
4670
4671 let mut new_cursors = Vec::new();
4672 let mut edit_ranges = Vec::new();
4673 let mut selections = selections.iter().peekable();
4674 while let Some(selection) = selections.next() {
4675 let mut rows = selection.spanned_rows(false, &display_map);
4676 let goal_display_column = selection.head().to_display_point(&display_map).column();
4677
4678 // Accumulate contiguous regions of rows that we want to delete.
4679 while let Some(next_selection) = selections.peek() {
4680 let next_rows = next_selection.spanned_rows(false, &display_map);
4681 if next_rows.start <= rows.end {
4682 rows.end = next_rows.end;
4683 selections.next().unwrap();
4684 } else {
4685 break;
4686 }
4687 }
4688
4689 let buffer = &display_map.buffer_snapshot;
4690 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4691 let edit_end;
4692 let cursor_buffer_row;
4693 if buffer.max_point().row >= rows.end {
4694 // If there's a line after the range, delete the \n from the end of the row range
4695 // and position the cursor on the next line.
4696 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4697 cursor_buffer_row = rows.end;
4698 } else {
4699 // If there isn't a line after the range, delete the \n from the line before the
4700 // start of the row range and position the cursor there.
4701 edit_start = edit_start.saturating_sub(1);
4702 edit_end = buffer.len();
4703 cursor_buffer_row = rows.start.saturating_sub(1);
4704 }
4705
4706 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4707 *cursor.column_mut() =
4708 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4709
4710 new_cursors.push((
4711 selection.id,
4712 buffer.anchor_after(cursor.to_point(&display_map)),
4713 ));
4714 edit_ranges.push(edit_start..edit_end);
4715 }
4716
4717 self.transact(cx, |this, cx| {
4718 let buffer = this.buffer.update(cx, |buffer, cx| {
4719 let empty_str: Arc<str> = "".into();
4720 buffer.edit(
4721 edit_ranges
4722 .into_iter()
4723 .map(|range| (range, empty_str.clone())),
4724 None,
4725 cx,
4726 );
4727 buffer.snapshot(cx)
4728 });
4729 let new_selections = new_cursors
4730 .into_iter()
4731 .map(|(id, cursor)| {
4732 let cursor = cursor.to_point(&buffer);
4733 Selection {
4734 id,
4735 start: cursor,
4736 end: cursor,
4737 reversed: false,
4738 goal: SelectionGoal::None,
4739 }
4740 })
4741 .collect();
4742
4743 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4744 s.select(new_selections);
4745 });
4746 });
4747 }
4748
4749 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4750 if self.read_only(cx) {
4751 return;
4752 }
4753 let mut row_ranges = Vec::<Range<u32>>::new();
4754 for selection in self.selections.all::<Point>(cx) {
4755 let start = selection.start.row;
4756 let end = if selection.start.row == selection.end.row {
4757 selection.start.row + 1
4758 } else {
4759 selection.end.row
4760 };
4761
4762 if let Some(last_row_range) = row_ranges.last_mut() {
4763 if start <= last_row_range.end {
4764 last_row_range.end = end;
4765 continue;
4766 }
4767 }
4768 row_ranges.push(start..end);
4769 }
4770
4771 let snapshot = self.buffer.read(cx).snapshot(cx);
4772 let mut cursor_positions = Vec::new();
4773 for row_range in &row_ranges {
4774 let anchor = snapshot.anchor_before(Point::new(
4775 row_range.end - 1,
4776 snapshot.line_len(row_range.end - 1),
4777 ));
4778 cursor_positions.push(anchor..anchor);
4779 }
4780
4781 self.transact(cx, |this, cx| {
4782 for row_range in row_ranges.into_iter().rev() {
4783 for row in row_range.rev() {
4784 let end_of_line = Point::new(row, snapshot.line_len(row));
4785 let indent = snapshot.indent_size_for_line(row + 1);
4786 let start_of_next_line = Point::new(row + 1, indent.len);
4787
4788 let replace = if snapshot.line_len(row + 1) > indent.len {
4789 " "
4790 } else {
4791 ""
4792 };
4793
4794 this.buffer.update(cx, |buffer, cx| {
4795 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4796 });
4797 }
4798 }
4799
4800 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4801 s.select_anchor_ranges(cursor_positions)
4802 });
4803 });
4804 }
4805
4806 pub fn sort_lines_case_sensitive(
4807 &mut self,
4808 _: &SortLinesCaseSensitive,
4809 cx: &mut ViewContext<Self>,
4810 ) {
4811 self.manipulate_lines(cx, |lines| lines.sort())
4812 }
4813
4814 pub fn sort_lines_case_insensitive(
4815 &mut self,
4816 _: &SortLinesCaseInsensitive,
4817 cx: &mut ViewContext<Self>,
4818 ) {
4819 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4820 }
4821
4822 pub fn unique_lines_case_insensitive(
4823 &mut self,
4824 _: &UniqueLinesCaseInsensitive,
4825 cx: &mut ViewContext<Self>,
4826 ) {
4827 self.manipulate_lines(cx, |lines| {
4828 let mut seen = HashSet::default();
4829 lines.retain(|line| seen.insert(line.to_lowercase()));
4830 })
4831 }
4832
4833 pub fn unique_lines_case_sensitive(
4834 &mut self,
4835 _: &UniqueLinesCaseSensitive,
4836 cx: &mut ViewContext<Self>,
4837 ) {
4838 self.manipulate_lines(cx, |lines| {
4839 let mut seen = HashSet::default();
4840 lines.retain(|line| seen.insert(*line));
4841 })
4842 }
4843
4844 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
4845 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
4846 if !revert_changes.is_empty() {
4847 self.transact(cx, |editor, cx| {
4848 editor.buffer().update(cx, |multi_buffer, cx| {
4849 for (buffer_id, buffer_revert_ranges) in revert_changes {
4850 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
4851 buffer.update(cx, |buffer, cx| {
4852 buffer.edit(buffer_revert_ranges, None, cx);
4853 });
4854 }
4855 }
4856 });
4857 editor.change_selections(None, cx, |selections| selections.refresh());
4858 });
4859 }
4860 }
4861
4862 fn gather_revert_changes(
4863 &mut self,
4864 selections: &[Selection<Anchor>],
4865 cx: &mut ViewContext<'_, Editor>,
4866 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>> {
4867 let mut revert_changes = HashMap::default();
4868 self.buffer.update(cx, |multi_buffer, cx| {
4869 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4870 let selected_multi_buffer_rows = selections.iter().map(|selection| {
4871 let head = selection.head();
4872 let tail = selection.tail();
4873 let start = tail.to_point(&multi_buffer_snapshot).row;
4874 let end = head.to_point(&multi_buffer_snapshot).row;
4875 if start > end {
4876 end..start
4877 } else {
4878 start..end
4879 }
4880 });
4881
4882 let mut processed_buffer_rows =
4883 HashMap::<BufferId, HashSet<Range<text::Anchor>>>::default();
4884 for selected_multi_buffer_rows in selected_multi_buffer_rows {
4885 let query_rows =
4886 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
4887 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
4888 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
4889 // when the caret is just above or just below the deleted hunk.
4890 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
4891 let related_to_selection = if allow_adjacent {
4892 hunk.associated_range.overlaps(&query_rows)
4893 || hunk.associated_range.start == query_rows.end
4894 || hunk.associated_range.end == query_rows.start
4895 } else {
4896 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
4897 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
4898 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
4899 || selected_multi_buffer_rows.end == hunk.associated_range.start
4900 };
4901 if related_to_selection {
4902 if !processed_buffer_rows
4903 .entry(hunk.buffer_id)
4904 .or_default()
4905 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
4906 {
4907 continue;
4908 }
4909 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
4910 }
4911 }
4912 }
4913 });
4914 revert_changes
4915 }
4916
4917 fn prepare_revert_change(
4918 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Arc<str>)>>,
4919 multi_buffer: &MultiBuffer,
4920 hunk: &DiffHunk<u32>,
4921 cx: &mut AppContext,
4922 ) -> Option<()> {
4923 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
4924 let buffer = buffer.read(cx);
4925 let original_text = buffer.diff_base()?.get(hunk.diff_base_byte_range.clone())?;
4926 let buffer_snapshot = buffer.snapshot();
4927 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
4928 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
4929 probe
4930 .0
4931 .start
4932 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
4933 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
4934 .then(probe.1.as_ref().cmp(original_text))
4935 }) {
4936 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), Arc::from(original_text)));
4937 Some(())
4938 } else {
4939 None
4940 }
4941 }
4942
4943 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4944 self.manipulate_lines(cx, |lines| lines.reverse())
4945 }
4946
4947 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4948 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4949 }
4950
4951 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4952 where
4953 Fn: FnMut(&mut Vec<&str>),
4954 {
4955 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4956 let buffer = self.buffer.read(cx).snapshot(cx);
4957
4958 let mut edits = Vec::new();
4959
4960 let selections = self.selections.all::<Point>(cx);
4961 let mut selections = selections.iter().peekable();
4962 let mut contiguous_row_selections = Vec::new();
4963 let mut new_selections = Vec::new();
4964 let mut added_lines = 0;
4965 let mut removed_lines = 0;
4966
4967 while let Some(selection) = selections.next() {
4968 let (start_row, end_row) = consume_contiguous_rows(
4969 &mut contiguous_row_selections,
4970 selection,
4971 &display_map,
4972 &mut selections,
4973 );
4974
4975 let start_point = Point::new(start_row, 0);
4976 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4977 let text = buffer
4978 .text_for_range(start_point..end_point)
4979 .collect::<String>();
4980
4981 let mut lines = text.split('\n').collect_vec();
4982
4983 let lines_before = lines.len();
4984 callback(&mut lines);
4985 let lines_after = lines.len();
4986
4987 edits.push((start_point..end_point, lines.join("\n")));
4988
4989 // Selections must change based on added and removed line count
4990 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
4991 let end_row = start_row + lines_after.saturating_sub(1) as u32;
4992 new_selections.push(Selection {
4993 id: selection.id,
4994 start: start_row,
4995 end: end_row,
4996 goal: SelectionGoal::None,
4997 reversed: selection.reversed,
4998 });
4999
5000 if lines_after > lines_before {
5001 added_lines += lines_after - lines_before;
5002 } else if lines_before > lines_after {
5003 removed_lines += lines_before - lines_after;
5004 }
5005 }
5006
5007 self.transact(cx, |this, cx| {
5008 let buffer = this.buffer.update(cx, |buffer, cx| {
5009 buffer.edit(edits, None, cx);
5010 buffer.snapshot(cx)
5011 });
5012
5013 // Recalculate offsets on newly edited buffer
5014 let new_selections = new_selections
5015 .iter()
5016 .map(|s| {
5017 let start_point = Point::new(s.start, 0);
5018 let end_point = Point::new(s.end, buffer.line_len(s.end));
5019 Selection {
5020 id: s.id,
5021 start: buffer.point_to_offset(start_point),
5022 end: buffer.point_to_offset(end_point),
5023 goal: s.goal,
5024 reversed: s.reversed,
5025 }
5026 })
5027 .collect();
5028
5029 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5030 s.select(new_selections);
5031 });
5032
5033 this.request_autoscroll(Autoscroll::fit(), cx);
5034 });
5035 }
5036
5037 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5038 self.manipulate_text(cx, |text| text.to_uppercase())
5039 }
5040
5041 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5042 self.manipulate_text(cx, |text| text.to_lowercase())
5043 }
5044
5045 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5046 self.manipulate_text(cx, |text| {
5047 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5048 // https://github.com/rutrum/convert-case/issues/16
5049 text.split('\n')
5050 .map(|line| line.to_case(Case::Title))
5051 .join("\n")
5052 })
5053 }
5054
5055 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5056 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5057 }
5058
5059 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5060 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5061 }
5062
5063 pub fn convert_to_upper_camel_case(
5064 &mut self,
5065 _: &ConvertToUpperCamelCase,
5066 cx: &mut ViewContext<Self>,
5067 ) {
5068 self.manipulate_text(cx, |text| {
5069 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5070 // https://github.com/rutrum/convert-case/issues/16
5071 text.split('\n')
5072 .map(|line| line.to_case(Case::UpperCamel))
5073 .join("\n")
5074 })
5075 }
5076
5077 pub fn convert_to_lower_camel_case(
5078 &mut self,
5079 _: &ConvertToLowerCamelCase,
5080 cx: &mut ViewContext<Self>,
5081 ) {
5082 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5083 }
5084
5085 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5086 where
5087 Fn: FnMut(&str) -> String,
5088 {
5089 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5090 let buffer = self.buffer.read(cx).snapshot(cx);
5091
5092 let mut new_selections = Vec::new();
5093 let mut edits = Vec::new();
5094 let mut selection_adjustment = 0i32;
5095
5096 for selection in self.selections.all::<usize>(cx) {
5097 let selection_is_empty = selection.is_empty();
5098
5099 let (start, end) = if selection_is_empty {
5100 let word_range = movement::surrounding_word(
5101 &display_map,
5102 selection.start.to_display_point(&display_map),
5103 );
5104 let start = word_range.start.to_offset(&display_map, Bias::Left);
5105 let end = word_range.end.to_offset(&display_map, Bias::Left);
5106 (start, end)
5107 } else {
5108 (selection.start, selection.end)
5109 };
5110
5111 let text = buffer.text_for_range(start..end).collect::<String>();
5112 let old_length = text.len() as i32;
5113 let text = callback(&text);
5114
5115 new_selections.push(Selection {
5116 start: (start as i32 - selection_adjustment) as usize,
5117 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5118 goal: SelectionGoal::None,
5119 ..selection
5120 });
5121
5122 selection_adjustment += old_length - text.len() as i32;
5123
5124 edits.push((start..end, text));
5125 }
5126
5127 self.transact(cx, |this, cx| {
5128 this.buffer.update(cx, |buffer, cx| {
5129 buffer.edit(edits, None, cx);
5130 });
5131
5132 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5133 s.select(new_selections);
5134 });
5135
5136 this.request_autoscroll(Autoscroll::fit(), cx);
5137 });
5138 }
5139
5140 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5141 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5142 let buffer = &display_map.buffer_snapshot;
5143 let selections = self.selections.all::<Point>(cx);
5144
5145 let mut edits = Vec::new();
5146 let mut selections_iter = selections.iter().peekable();
5147 while let Some(selection) = selections_iter.next() {
5148 // Avoid duplicating the same lines twice.
5149 let mut rows = selection.spanned_rows(false, &display_map);
5150
5151 while let Some(next_selection) = selections_iter.peek() {
5152 let next_rows = next_selection.spanned_rows(false, &display_map);
5153 if next_rows.start < rows.end {
5154 rows.end = next_rows.end;
5155 selections_iter.next().unwrap();
5156 } else {
5157 break;
5158 }
5159 }
5160
5161 // Copy the text from the selected row region and splice it either at the start
5162 // or end of the region.
5163 let start = Point::new(rows.start, 0);
5164 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5165 let text = buffer
5166 .text_for_range(start..end)
5167 .chain(Some("\n"))
5168 .collect::<String>();
5169 let insert_location = if upwards {
5170 Point::new(rows.end, 0)
5171 } else {
5172 start
5173 };
5174 edits.push((insert_location..insert_location, text));
5175 }
5176
5177 self.transact(cx, |this, cx| {
5178 this.buffer.update(cx, |buffer, cx| {
5179 buffer.edit(edits, None, cx);
5180 });
5181
5182 this.request_autoscroll(Autoscroll::fit(), cx);
5183 });
5184 }
5185
5186 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5187 self.duplicate_line(true, cx);
5188 }
5189
5190 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5191 self.duplicate_line(false, cx);
5192 }
5193
5194 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5195 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5196 let buffer = self.buffer.read(cx).snapshot(cx);
5197
5198 let mut edits = Vec::new();
5199 let mut unfold_ranges = Vec::new();
5200 let mut refold_ranges = Vec::new();
5201
5202 let selections = self.selections.all::<Point>(cx);
5203 let mut selections = selections.iter().peekable();
5204 let mut contiguous_row_selections = Vec::new();
5205 let mut new_selections = Vec::new();
5206
5207 while let Some(selection) = selections.next() {
5208 // Find all the selections that span a contiguous row range
5209 let (start_row, end_row) = consume_contiguous_rows(
5210 &mut contiguous_row_selections,
5211 selection,
5212 &display_map,
5213 &mut selections,
5214 );
5215
5216 // Move the text spanned by the row range to be before the line preceding the row range
5217 if start_row > 0 {
5218 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5219 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5220 let insertion_point = display_map
5221 .prev_line_boundary(Point::new(start_row - 1, 0))
5222 .0;
5223
5224 // Don't move lines across excerpts
5225 if buffer
5226 .excerpt_boundaries_in_range((
5227 Bound::Excluded(insertion_point),
5228 Bound::Included(range_to_move.end),
5229 ))
5230 .next()
5231 .is_none()
5232 {
5233 let text = buffer
5234 .text_for_range(range_to_move.clone())
5235 .flat_map(|s| s.chars())
5236 .skip(1)
5237 .chain(['\n'])
5238 .collect::<String>();
5239
5240 edits.push((
5241 buffer.anchor_after(range_to_move.start)
5242 ..buffer.anchor_before(range_to_move.end),
5243 String::new(),
5244 ));
5245 let insertion_anchor = buffer.anchor_after(insertion_point);
5246 edits.push((insertion_anchor..insertion_anchor, text));
5247
5248 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5249
5250 // Move selections up
5251 new_selections.extend(contiguous_row_selections.drain(..).map(
5252 |mut selection| {
5253 selection.start.row -= row_delta;
5254 selection.end.row -= row_delta;
5255 selection
5256 },
5257 ));
5258
5259 // Move folds up
5260 unfold_ranges.push(range_to_move.clone());
5261 for fold in display_map.folds_in_range(
5262 buffer.anchor_before(range_to_move.start)
5263 ..buffer.anchor_after(range_to_move.end),
5264 ) {
5265 let mut start = fold.range.start.to_point(&buffer);
5266 let mut end = fold.range.end.to_point(&buffer);
5267 start.row -= row_delta;
5268 end.row -= row_delta;
5269 refold_ranges.push(start..end);
5270 }
5271 }
5272 }
5273
5274 // If we didn't move line(s), preserve the existing selections
5275 new_selections.append(&mut contiguous_row_selections);
5276 }
5277
5278 self.transact(cx, |this, cx| {
5279 this.unfold_ranges(unfold_ranges, true, true, cx);
5280 this.buffer.update(cx, |buffer, cx| {
5281 for (range, text) in edits {
5282 buffer.edit([(range, text)], None, cx);
5283 }
5284 });
5285 this.fold_ranges(refold_ranges, true, cx);
5286 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5287 s.select(new_selections);
5288 })
5289 });
5290 }
5291
5292 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5293 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5294 let buffer = self.buffer.read(cx).snapshot(cx);
5295
5296 let mut edits = Vec::new();
5297 let mut unfold_ranges = Vec::new();
5298 let mut refold_ranges = Vec::new();
5299
5300 let selections = self.selections.all::<Point>(cx);
5301 let mut selections = selections.iter().peekable();
5302 let mut contiguous_row_selections = Vec::new();
5303 let mut new_selections = Vec::new();
5304
5305 while let Some(selection) = selections.next() {
5306 // Find all the selections that span a contiguous row range
5307 let (start_row, end_row) = consume_contiguous_rows(
5308 &mut contiguous_row_selections,
5309 selection,
5310 &display_map,
5311 &mut selections,
5312 );
5313
5314 // Move the text spanned by the row range to be after the last line of the row range
5315 if end_row <= buffer.max_point().row {
5316 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5317 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5318
5319 // Don't move lines across excerpt boundaries
5320 if buffer
5321 .excerpt_boundaries_in_range((
5322 Bound::Excluded(range_to_move.start),
5323 Bound::Included(insertion_point),
5324 ))
5325 .next()
5326 .is_none()
5327 {
5328 let mut text = String::from("\n");
5329 text.extend(buffer.text_for_range(range_to_move.clone()));
5330 text.pop(); // Drop trailing newline
5331 edits.push((
5332 buffer.anchor_after(range_to_move.start)
5333 ..buffer.anchor_before(range_to_move.end),
5334 String::new(),
5335 ));
5336 let insertion_anchor = buffer.anchor_after(insertion_point);
5337 edits.push((insertion_anchor..insertion_anchor, text));
5338
5339 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5340
5341 // Move selections down
5342 new_selections.extend(contiguous_row_selections.drain(..).map(
5343 |mut selection| {
5344 selection.start.row += row_delta;
5345 selection.end.row += row_delta;
5346 selection
5347 },
5348 ));
5349
5350 // Move folds down
5351 unfold_ranges.push(range_to_move.clone());
5352 for fold in display_map.folds_in_range(
5353 buffer.anchor_before(range_to_move.start)
5354 ..buffer.anchor_after(range_to_move.end),
5355 ) {
5356 let mut start = fold.range.start.to_point(&buffer);
5357 let mut end = fold.range.end.to_point(&buffer);
5358 start.row += row_delta;
5359 end.row += row_delta;
5360 refold_ranges.push(start..end);
5361 }
5362 }
5363 }
5364
5365 // If we didn't move line(s), preserve the existing selections
5366 new_selections.append(&mut contiguous_row_selections);
5367 }
5368
5369 self.transact(cx, |this, cx| {
5370 this.unfold_ranges(unfold_ranges, true, true, cx);
5371 this.buffer.update(cx, |buffer, cx| {
5372 for (range, text) in edits {
5373 buffer.edit([(range, text)], None, cx);
5374 }
5375 });
5376 this.fold_ranges(refold_ranges, true, cx);
5377 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5378 });
5379 }
5380
5381 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5382 let text_layout_details = &self.text_layout_details(cx);
5383 self.transact(cx, |this, cx| {
5384 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5385 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5386 let line_mode = s.line_mode;
5387 s.move_with(|display_map, selection| {
5388 if !selection.is_empty() || line_mode {
5389 return;
5390 }
5391
5392 let mut head = selection.head();
5393 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5394 if head.column() == display_map.line_len(head.row()) {
5395 transpose_offset = display_map
5396 .buffer_snapshot
5397 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5398 }
5399
5400 if transpose_offset == 0 {
5401 return;
5402 }
5403
5404 *head.column_mut() += 1;
5405 head = display_map.clip_point(head, Bias::Right);
5406 let goal = SelectionGoal::HorizontalPosition(
5407 display_map
5408 .x_for_display_point(head, &text_layout_details)
5409 .into(),
5410 );
5411 selection.collapse_to(head, goal);
5412
5413 let transpose_start = display_map
5414 .buffer_snapshot
5415 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5416 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5417 let transpose_end = display_map
5418 .buffer_snapshot
5419 .clip_offset(transpose_offset + 1, Bias::Right);
5420 if let Some(ch) =
5421 display_map.buffer_snapshot.chars_at(transpose_start).next()
5422 {
5423 edits.push((transpose_start..transpose_offset, String::new()));
5424 edits.push((transpose_end..transpose_end, ch.to_string()));
5425 }
5426 }
5427 });
5428 edits
5429 });
5430 this.buffer
5431 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5432 let selections = this.selections.all::<usize>(cx);
5433 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5434 s.select(selections);
5435 });
5436 });
5437 }
5438
5439 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5440 let mut text = String::new();
5441 let buffer = self.buffer.read(cx).snapshot(cx);
5442 let mut selections = self.selections.all::<Point>(cx);
5443 let mut clipboard_selections = Vec::with_capacity(selections.len());
5444 {
5445 let max_point = buffer.max_point();
5446 let mut is_first = true;
5447 for selection in &mut selections {
5448 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5449 if is_entire_line {
5450 selection.start = Point::new(selection.start.row, 0);
5451 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5452 selection.goal = SelectionGoal::None;
5453 }
5454 if is_first {
5455 is_first = false;
5456 } else {
5457 text += "\n";
5458 }
5459 let mut len = 0;
5460 for chunk in buffer.text_for_range(selection.start..selection.end) {
5461 text.push_str(chunk);
5462 len += chunk.len();
5463 }
5464 clipboard_selections.push(ClipboardSelection {
5465 len,
5466 is_entire_line,
5467 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5468 });
5469 }
5470 }
5471
5472 self.transact(cx, |this, cx| {
5473 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5474 s.select(selections);
5475 });
5476 this.insert("", cx);
5477 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5478 });
5479 }
5480
5481 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5482 let selections = self.selections.all::<Point>(cx);
5483 let buffer = self.buffer.read(cx).read(cx);
5484 let mut text = String::new();
5485
5486 let mut clipboard_selections = Vec::with_capacity(selections.len());
5487 {
5488 let max_point = buffer.max_point();
5489 let mut is_first = true;
5490 for selection in selections.iter() {
5491 let mut start = selection.start;
5492 let mut end = selection.end;
5493 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5494 if is_entire_line {
5495 start = Point::new(start.row, 0);
5496 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5497 }
5498 if is_first {
5499 is_first = false;
5500 } else {
5501 text += "\n";
5502 }
5503 let mut len = 0;
5504 for chunk in buffer.text_for_range(start..end) {
5505 text.push_str(chunk);
5506 len += chunk.len();
5507 }
5508 clipboard_selections.push(ClipboardSelection {
5509 len,
5510 is_entire_line,
5511 first_line_indent: buffer.indent_size_for_line(start.row).len,
5512 });
5513 }
5514 }
5515
5516 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5517 }
5518
5519 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5520 if self.read_only(cx) {
5521 return;
5522 }
5523
5524 self.transact(cx, |this, cx| {
5525 if let Some(item) = cx.read_from_clipboard() {
5526 let clipboard_text = Cow::Borrowed(item.text());
5527 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5528 let old_selections = this.selections.all::<usize>(cx);
5529 let all_selections_were_entire_line =
5530 clipboard_selections.iter().all(|s| s.is_entire_line);
5531 let first_selection_indent_column =
5532 clipboard_selections.first().map(|s| s.first_line_indent);
5533 if clipboard_selections.len() != old_selections.len() {
5534 clipboard_selections.drain(..);
5535 }
5536
5537 this.buffer.update(cx, |buffer, cx| {
5538 let snapshot = buffer.read(cx);
5539 let mut start_offset = 0;
5540 let mut edits = Vec::new();
5541 let mut original_indent_columns = Vec::new();
5542 let line_mode = this.selections.line_mode;
5543 for (ix, selection) in old_selections.iter().enumerate() {
5544 let to_insert;
5545 let entire_line;
5546 let original_indent_column;
5547 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5548 let end_offset = start_offset + clipboard_selection.len;
5549 to_insert = &clipboard_text[start_offset..end_offset];
5550 entire_line = clipboard_selection.is_entire_line;
5551 start_offset = end_offset + 1;
5552 original_indent_column =
5553 Some(clipboard_selection.first_line_indent);
5554 } else {
5555 to_insert = clipboard_text.as_str();
5556 entire_line = all_selections_were_entire_line;
5557 original_indent_column = first_selection_indent_column
5558 }
5559
5560 // If the corresponding selection was empty when this slice of the
5561 // clipboard text was written, then the entire line containing the
5562 // selection was copied. If this selection is also currently empty,
5563 // then paste the line before the current line of the buffer.
5564 let range = if selection.is_empty() && !line_mode && entire_line {
5565 let column = selection.start.to_point(&snapshot).column as usize;
5566 let line_start = selection.start - column;
5567 line_start..line_start
5568 } else {
5569 selection.range()
5570 };
5571
5572 edits.push((range, to_insert));
5573 original_indent_columns.extend(original_indent_column);
5574 }
5575 drop(snapshot);
5576
5577 buffer.edit(
5578 edits,
5579 Some(AutoindentMode::Block {
5580 original_indent_columns,
5581 }),
5582 cx,
5583 );
5584 });
5585
5586 let selections = this.selections.all::<usize>(cx);
5587 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5588 } else {
5589 this.insert(&clipboard_text, cx);
5590 }
5591 }
5592 });
5593 }
5594
5595 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5596 if self.read_only(cx) {
5597 return;
5598 }
5599
5600 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5601 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5602 self.change_selections(None, cx, |s| {
5603 s.select_anchors(selections.to_vec());
5604 });
5605 }
5606 self.request_autoscroll(Autoscroll::fit(), cx);
5607 self.unmark_text(cx);
5608 self.refresh_inline_completion(true, cx);
5609 cx.emit(EditorEvent::Edited);
5610 cx.emit(EditorEvent::TransactionUndone {
5611 transaction_id: tx_id,
5612 });
5613 }
5614 }
5615
5616 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5617 if self.read_only(cx) {
5618 return;
5619 }
5620
5621 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5622 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5623 {
5624 self.change_selections(None, cx, |s| {
5625 s.select_anchors(selections.to_vec());
5626 });
5627 }
5628 self.request_autoscroll(Autoscroll::fit(), cx);
5629 self.unmark_text(cx);
5630 self.refresh_inline_completion(true, cx);
5631 cx.emit(EditorEvent::Edited);
5632 }
5633 }
5634
5635 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5636 self.buffer
5637 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5638 }
5639
5640 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
5641 self.buffer
5642 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
5643 }
5644
5645 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5646 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5647 let line_mode = s.line_mode;
5648 s.move_with(|map, selection| {
5649 let cursor = if selection.is_empty() && !line_mode {
5650 movement::left(map, selection.start)
5651 } else {
5652 selection.start
5653 };
5654 selection.collapse_to(cursor, SelectionGoal::None);
5655 });
5656 })
5657 }
5658
5659 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5660 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5661 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5662 })
5663 }
5664
5665 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5666 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5667 let line_mode = s.line_mode;
5668 s.move_with(|map, selection| {
5669 let cursor = if selection.is_empty() && !line_mode {
5670 movement::right(map, selection.end)
5671 } else {
5672 selection.end
5673 };
5674 selection.collapse_to(cursor, SelectionGoal::None)
5675 });
5676 })
5677 }
5678
5679 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5680 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5681 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5682 })
5683 }
5684
5685 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5686 if self.take_rename(true, cx).is_some() {
5687 return;
5688 }
5689
5690 if matches!(self.mode, EditorMode::SingleLine) {
5691 cx.propagate();
5692 return;
5693 }
5694
5695 let text_layout_details = &self.text_layout_details(cx);
5696
5697 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5698 let line_mode = s.line_mode;
5699 s.move_with(|map, selection| {
5700 if !selection.is_empty() && !line_mode {
5701 selection.goal = SelectionGoal::None;
5702 }
5703 let (cursor, goal) = movement::up(
5704 map,
5705 selection.start,
5706 selection.goal,
5707 false,
5708 &text_layout_details,
5709 );
5710 selection.collapse_to(cursor, goal);
5711 });
5712 })
5713 }
5714
5715 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5716 if self.take_rename(true, cx).is_some() {
5717 return;
5718 }
5719
5720 if matches!(self.mode, EditorMode::SingleLine) {
5721 cx.propagate();
5722 return;
5723 }
5724
5725 let text_layout_details = &self.text_layout_details(cx);
5726
5727 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5728 let line_mode = s.line_mode;
5729 s.move_with(|map, selection| {
5730 if !selection.is_empty() && !line_mode {
5731 selection.goal = SelectionGoal::None;
5732 }
5733 let (cursor, goal) = movement::up_by_rows(
5734 map,
5735 selection.start,
5736 action.lines,
5737 selection.goal,
5738 false,
5739 &text_layout_details,
5740 );
5741 selection.collapse_to(cursor, goal);
5742 });
5743 })
5744 }
5745
5746 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5747 if self.take_rename(true, cx).is_some() {
5748 return;
5749 }
5750
5751 if matches!(self.mode, EditorMode::SingleLine) {
5752 cx.propagate();
5753 return;
5754 }
5755
5756 let text_layout_details = &self.text_layout_details(cx);
5757
5758 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5759 let line_mode = s.line_mode;
5760 s.move_with(|map, selection| {
5761 if !selection.is_empty() && !line_mode {
5762 selection.goal = SelectionGoal::None;
5763 }
5764 let (cursor, goal) = movement::down_by_rows(
5765 map,
5766 selection.start,
5767 action.lines,
5768 selection.goal,
5769 false,
5770 &text_layout_details,
5771 );
5772 selection.collapse_to(cursor, goal);
5773 });
5774 })
5775 }
5776
5777 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5778 let text_layout_details = &self.text_layout_details(cx);
5779 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5780 s.move_heads_with(|map, head, goal| {
5781 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5782 })
5783 })
5784 }
5785
5786 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5787 let text_layout_details = &self.text_layout_details(cx);
5788 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5789 s.move_heads_with(|map, head, goal| {
5790 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5791 })
5792 })
5793 }
5794
5795 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5796 if self.take_rename(true, cx).is_some() {
5797 return;
5798 }
5799
5800 if matches!(self.mode, EditorMode::SingleLine) {
5801 cx.propagate();
5802 return;
5803 }
5804
5805 let row_count = if let Some(row_count) = self.visible_line_count() {
5806 row_count as u32 - 1
5807 } else {
5808 return;
5809 };
5810
5811 let autoscroll = if action.center_cursor {
5812 Autoscroll::center()
5813 } else {
5814 Autoscroll::fit()
5815 };
5816
5817 let text_layout_details = &self.text_layout_details(cx);
5818
5819 self.change_selections(Some(autoscroll), cx, |s| {
5820 let line_mode = s.line_mode;
5821 s.move_with(|map, selection| {
5822 if !selection.is_empty() && !line_mode {
5823 selection.goal = SelectionGoal::None;
5824 }
5825 let (cursor, goal) = movement::up_by_rows(
5826 map,
5827 selection.end,
5828 row_count,
5829 selection.goal,
5830 false,
5831 &text_layout_details,
5832 );
5833 selection.collapse_to(cursor, goal);
5834 });
5835 });
5836 }
5837
5838 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5839 let text_layout_details = &self.text_layout_details(cx);
5840 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5841 s.move_heads_with(|map, head, goal| {
5842 movement::up(map, head, goal, false, &text_layout_details)
5843 })
5844 })
5845 }
5846
5847 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5848 self.take_rename(true, cx);
5849
5850 if self.mode == EditorMode::SingleLine {
5851 cx.propagate();
5852 return;
5853 }
5854
5855 let text_layout_details = &self.text_layout_details(cx);
5856 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5857 let line_mode = s.line_mode;
5858 s.move_with(|map, selection| {
5859 if !selection.is_empty() && !line_mode {
5860 selection.goal = SelectionGoal::None;
5861 }
5862 let (cursor, goal) = movement::down(
5863 map,
5864 selection.end,
5865 selection.goal,
5866 false,
5867 &text_layout_details,
5868 );
5869 selection.collapse_to(cursor, goal);
5870 });
5871 });
5872 }
5873
5874 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5875 if self.take_rename(true, cx).is_some() {
5876 return;
5877 }
5878
5879 if self
5880 .context_menu
5881 .write()
5882 .as_mut()
5883 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5884 .unwrap_or(false)
5885 {
5886 return;
5887 }
5888
5889 if matches!(self.mode, EditorMode::SingleLine) {
5890 cx.propagate();
5891 return;
5892 }
5893
5894 let row_count = if let Some(row_count) = self.visible_line_count() {
5895 row_count as u32 - 1
5896 } else {
5897 return;
5898 };
5899
5900 let autoscroll = if action.center_cursor {
5901 Autoscroll::center()
5902 } else {
5903 Autoscroll::fit()
5904 };
5905
5906 let text_layout_details = &self.text_layout_details(cx);
5907 self.change_selections(Some(autoscroll), cx, |s| {
5908 let line_mode = s.line_mode;
5909 s.move_with(|map, selection| {
5910 if !selection.is_empty() && !line_mode {
5911 selection.goal = SelectionGoal::None;
5912 }
5913 let (cursor, goal) = movement::down_by_rows(
5914 map,
5915 selection.end,
5916 row_count,
5917 selection.goal,
5918 false,
5919 &text_layout_details,
5920 );
5921 selection.collapse_to(cursor, goal);
5922 });
5923 });
5924 }
5925
5926 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5927 let text_layout_details = &self.text_layout_details(cx);
5928 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5929 s.move_heads_with(|map, head, goal| {
5930 movement::down(map, head, goal, false, &text_layout_details)
5931 })
5932 });
5933 }
5934
5935 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5936 if let Some(context_menu) = self.context_menu.write().as_mut() {
5937 context_menu.select_first(self.project.as_ref(), cx);
5938 }
5939 }
5940
5941 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5942 if let Some(context_menu) = self.context_menu.write().as_mut() {
5943 context_menu.select_prev(self.project.as_ref(), cx);
5944 }
5945 }
5946
5947 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5948 if let Some(context_menu) = self.context_menu.write().as_mut() {
5949 context_menu.select_next(self.project.as_ref(), cx);
5950 }
5951 }
5952
5953 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5954 if let Some(context_menu) = self.context_menu.write().as_mut() {
5955 context_menu.select_last(self.project.as_ref(), cx);
5956 }
5957 }
5958
5959 pub fn move_to_previous_word_start(
5960 &mut self,
5961 _: &MoveToPreviousWordStart,
5962 cx: &mut ViewContext<Self>,
5963 ) {
5964 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5965 s.move_cursors_with(|map, head, _| {
5966 (
5967 movement::previous_word_start(map, head),
5968 SelectionGoal::None,
5969 )
5970 });
5971 })
5972 }
5973
5974 pub fn move_to_previous_subword_start(
5975 &mut self,
5976 _: &MoveToPreviousSubwordStart,
5977 cx: &mut ViewContext<Self>,
5978 ) {
5979 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5980 s.move_cursors_with(|map, head, _| {
5981 (
5982 movement::previous_subword_start(map, head),
5983 SelectionGoal::None,
5984 )
5985 });
5986 })
5987 }
5988
5989 pub fn select_to_previous_word_start(
5990 &mut self,
5991 _: &SelectToPreviousWordStart,
5992 cx: &mut ViewContext<Self>,
5993 ) {
5994 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5995 s.move_heads_with(|map, head, _| {
5996 (
5997 movement::previous_word_start(map, head),
5998 SelectionGoal::None,
5999 )
6000 });
6001 })
6002 }
6003
6004 pub fn select_to_previous_subword_start(
6005 &mut self,
6006 _: &SelectToPreviousSubwordStart,
6007 cx: &mut ViewContext<Self>,
6008 ) {
6009 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6010 s.move_heads_with(|map, head, _| {
6011 (
6012 movement::previous_subword_start(map, head),
6013 SelectionGoal::None,
6014 )
6015 });
6016 })
6017 }
6018
6019 pub fn delete_to_previous_word_start(
6020 &mut self,
6021 _: &DeleteToPreviousWordStart,
6022 cx: &mut ViewContext<Self>,
6023 ) {
6024 self.transact(cx, |this, cx| {
6025 this.select_autoclose_pair(cx);
6026 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6027 let line_mode = s.line_mode;
6028 s.move_with(|map, selection| {
6029 if selection.is_empty() && !line_mode {
6030 let cursor = movement::previous_word_start(map, selection.head());
6031 selection.set_head(cursor, SelectionGoal::None);
6032 }
6033 });
6034 });
6035 this.insert("", cx);
6036 });
6037 }
6038
6039 pub fn delete_to_previous_subword_start(
6040 &mut self,
6041 _: &DeleteToPreviousSubwordStart,
6042 cx: &mut ViewContext<Self>,
6043 ) {
6044 self.transact(cx, |this, cx| {
6045 this.select_autoclose_pair(cx);
6046 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6047 let line_mode = s.line_mode;
6048 s.move_with(|map, selection| {
6049 if selection.is_empty() && !line_mode {
6050 let cursor = movement::previous_subword_start(map, selection.head());
6051 selection.set_head(cursor, SelectionGoal::None);
6052 }
6053 });
6054 });
6055 this.insert("", cx);
6056 });
6057 }
6058
6059 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6060 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6061 s.move_cursors_with(|map, head, _| {
6062 (movement::next_word_end(map, head), SelectionGoal::None)
6063 });
6064 })
6065 }
6066
6067 pub fn move_to_next_subword_end(
6068 &mut self,
6069 _: &MoveToNextSubwordEnd,
6070 cx: &mut ViewContext<Self>,
6071 ) {
6072 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6073 s.move_cursors_with(|map, head, _| {
6074 (movement::next_subword_end(map, head), SelectionGoal::None)
6075 });
6076 })
6077 }
6078
6079 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6080 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6081 s.move_heads_with(|map, head, _| {
6082 (movement::next_word_end(map, head), SelectionGoal::None)
6083 });
6084 })
6085 }
6086
6087 pub fn select_to_next_subword_end(
6088 &mut self,
6089 _: &SelectToNextSubwordEnd,
6090 cx: &mut ViewContext<Self>,
6091 ) {
6092 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6093 s.move_heads_with(|map, head, _| {
6094 (movement::next_subword_end(map, head), SelectionGoal::None)
6095 });
6096 })
6097 }
6098
6099 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6100 self.transact(cx, |this, cx| {
6101 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6102 let line_mode = s.line_mode;
6103 s.move_with(|map, selection| {
6104 if selection.is_empty() && !line_mode {
6105 let cursor = movement::next_word_end(map, selection.head());
6106 selection.set_head(cursor, SelectionGoal::None);
6107 }
6108 });
6109 });
6110 this.insert("", cx);
6111 });
6112 }
6113
6114 pub fn delete_to_next_subword_end(
6115 &mut self,
6116 _: &DeleteToNextSubwordEnd,
6117 cx: &mut ViewContext<Self>,
6118 ) {
6119 self.transact(cx, |this, cx| {
6120 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6121 s.move_with(|map, selection| {
6122 if selection.is_empty() {
6123 let cursor = movement::next_subword_end(map, selection.head());
6124 selection.set_head(cursor, SelectionGoal::None);
6125 }
6126 });
6127 });
6128 this.insert("", cx);
6129 });
6130 }
6131
6132 pub fn move_to_beginning_of_line(
6133 &mut self,
6134 _: &MoveToBeginningOfLine,
6135 cx: &mut ViewContext<Self>,
6136 ) {
6137 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6138 s.move_cursors_with(|map, head, _| {
6139 (
6140 movement::indented_line_beginning(map, head, true),
6141 SelectionGoal::None,
6142 )
6143 });
6144 })
6145 }
6146
6147 pub fn select_to_beginning_of_line(
6148 &mut self,
6149 action: &SelectToBeginningOfLine,
6150 cx: &mut ViewContext<Self>,
6151 ) {
6152 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6153 s.move_heads_with(|map, head, _| {
6154 (
6155 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6156 SelectionGoal::None,
6157 )
6158 });
6159 });
6160 }
6161
6162 pub fn delete_to_beginning_of_line(
6163 &mut self,
6164 _: &DeleteToBeginningOfLine,
6165 cx: &mut ViewContext<Self>,
6166 ) {
6167 self.transact(cx, |this, cx| {
6168 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6169 s.move_with(|_, selection| {
6170 selection.reversed = true;
6171 });
6172 });
6173
6174 this.select_to_beginning_of_line(
6175 &SelectToBeginningOfLine {
6176 stop_at_soft_wraps: false,
6177 },
6178 cx,
6179 );
6180 this.backspace(&Backspace, cx);
6181 });
6182 }
6183
6184 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6185 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6186 s.move_cursors_with(|map, head, _| {
6187 (movement::line_end(map, head, true), SelectionGoal::None)
6188 });
6189 })
6190 }
6191
6192 pub fn select_to_end_of_line(
6193 &mut self,
6194 action: &SelectToEndOfLine,
6195 cx: &mut ViewContext<Self>,
6196 ) {
6197 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6198 s.move_heads_with(|map, head, _| {
6199 (
6200 movement::line_end(map, head, action.stop_at_soft_wraps),
6201 SelectionGoal::None,
6202 )
6203 });
6204 })
6205 }
6206
6207 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6208 self.transact(cx, |this, cx| {
6209 this.select_to_end_of_line(
6210 &SelectToEndOfLine {
6211 stop_at_soft_wraps: false,
6212 },
6213 cx,
6214 );
6215 this.delete(&Delete, cx);
6216 });
6217 }
6218
6219 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6220 self.transact(cx, |this, cx| {
6221 this.select_to_end_of_line(
6222 &SelectToEndOfLine {
6223 stop_at_soft_wraps: false,
6224 },
6225 cx,
6226 );
6227 this.cut(&Cut, cx);
6228 });
6229 }
6230
6231 pub fn move_to_start_of_paragraph(
6232 &mut self,
6233 _: &MoveToStartOfParagraph,
6234 cx: &mut ViewContext<Self>,
6235 ) {
6236 if matches!(self.mode, EditorMode::SingleLine) {
6237 cx.propagate();
6238 return;
6239 }
6240
6241 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6242 s.move_with(|map, selection| {
6243 selection.collapse_to(
6244 movement::start_of_paragraph(map, selection.head(), 1),
6245 SelectionGoal::None,
6246 )
6247 });
6248 })
6249 }
6250
6251 pub fn move_to_end_of_paragraph(
6252 &mut self,
6253 _: &MoveToEndOfParagraph,
6254 cx: &mut ViewContext<Self>,
6255 ) {
6256 if matches!(self.mode, EditorMode::SingleLine) {
6257 cx.propagate();
6258 return;
6259 }
6260
6261 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6262 s.move_with(|map, selection| {
6263 selection.collapse_to(
6264 movement::end_of_paragraph(map, selection.head(), 1),
6265 SelectionGoal::None,
6266 )
6267 });
6268 })
6269 }
6270
6271 pub fn select_to_start_of_paragraph(
6272 &mut self,
6273 _: &SelectToStartOfParagraph,
6274 cx: &mut ViewContext<Self>,
6275 ) {
6276 if matches!(self.mode, EditorMode::SingleLine) {
6277 cx.propagate();
6278 return;
6279 }
6280
6281 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6282 s.move_heads_with(|map, head, _| {
6283 (
6284 movement::start_of_paragraph(map, head, 1),
6285 SelectionGoal::None,
6286 )
6287 });
6288 })
6289 }
6290
6291 pub fn select_to_end_of_paragraph(
6292 &mut self,
6293 _: &SelectToEndOfParagraph,
6294 cx: &mut ViewContext<Self>,
6295 ) {
6296 if matches!(self.mode, EditorMode::SingleLine) {
6297 cx.propagate();
6298 return;
6299 }
6300
6301 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6302 s.move_heads_with(|map, head, _| {
6303 (
6304 movement::end_of_paragraph(map, head, 1),
6305 SelectionGoal::None,
6306 )
6307 });
6308 })
6309 }
6310
6311 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6312 if matches!(self.mode, EditorMode::SingleLine) {
6313 cx.propagate();
6314 return;
6315 }
6316
6317 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6318 s.select_ranges(vec![0..0]);
6319 });
6320 }
6321
6322 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6323 let mut selection = self.selections.last::<Point>(cx);
6324 selection.set_head(Point::zero(), SelectionGoal::None);
6325
6326 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6327 s.select(vec![selection]);
6328 });
6329 }
6330
6331 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6332 if matches!(self.mode, EditorMode::SingleLine) {
6333 cx.propagate();
6334 return;
6335 }
6336
6337 let cursor = self.buffer.read(cx).read(cx).len();
6338 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6339 s.select_ranges(vec![cursor..cursor])
6340 });
6341 }
6342
6343 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6344 self.nav_history = nav_history;
6345 }
6346
6347 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6348 self.nav_history.as_ref()
6349 }
6350
6351 fn push_to_nav_history(
6352 &mut self,
6353 cursor_anchor: Anchor,
6354 new_position: Option<Point>,
6355 cx: &mut ViewContext<Self>,
6356 ) {
6357 if let Some(nav_history) = self.nav_history.as_mut() {
6358 let buffer = self.buffer.read(cx).read(cx);
6359 let cursor_position = cursor_anchor.to_point(&buffer);
6360 let scroll_state = self.scroll_manager.anchor();
6361 let scroll_top_row = scroll_state.top_row(&buffer);
6362 drop(buffer);
6363
6364 if let Some(new_position) = new_position {
6365 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6366 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6367 return;
6368 }
6369 }
6370
6371 nav_history.push(
6372 Some(NavigationData {
6373 cursor_anchor,
6374 cursor_position,
6375 scroll_anchor: scroll_state,
6376 scroll_top_row,
6377 }),
6378 cx,
6379 );
6380 }
6381 }
6382
6383 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6384 let buffer = self.buffer.read(cx).snapshot(cx);
6385 let mut selection = self.selections.first::<usize>(cx);
6386 selection.set_head(buffer.len(), SelectionGoal::None);
6387 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6388 s.select(vec![selection]);
6389 });
6390 }
6391
6392 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6393 let end = self.buffer.read(cx).read(cx).len();
6394 self.change_selections(None, cx, |s| {
6395 s.select_ranges(vec![0..end]);
6396 });
6397 }
6398
6399 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6400 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6401 let mut selections = self.selections.all::<Point>(cx);
6402 let max_point = display_map.buffer_snapshot.max_point();
6403 for selection in &mut selections {
6404 let rows = selection.spanned_rows(true, &display_map);
6405 selection.start = Point::new(rows.start, 0);
6406 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6407 selection.reversed = false;
6408 }
6409 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6410 s.select(selections);
6411 });
6412 }
6413
6414 pub fn split_selection_into_lines(
6415 &mut self,
6416 _: &SplitSelectionIntoLines,
6417 cx: &mut ViewContext<Self>,
6418 ) {
6419 let mut to_unfold = Vec::new();
6420 let mut new_selection_ranges = Vec::new();
6421 {
6422 let selections = self.selections.all::<Point>(cx);
6423 let buffer = self.buffer.read(cx).read(cx);
6424 for selection in selections {
6425 for row in selection.start.row..selection.end.row {
6426 let cursor = Point::new(row, buffer.line_len(row));
6427 new_selection_ranges.push(cursor..cursor);
6428 }
6429 new_selection_ranges.push(selection.end..selection.end);
6430 to_unfold.push(selection.start..selection.end);
6431 }
6432 }
6433 self.unfold_ranges(to_unfold, true, true, cx);
6434 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6435 s.select_ranges(new_selection_ranges);
6436 });
6437 }
6438
6439 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6440 self.add_selection(true, cx);
6441 }
6442
6443 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6444 self.add_selection(false, cx);
6445 }
6446
6447 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6448 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6449 let mut selections = self.selections.all::<Point>(cx);
6450 let text_layout_details = self.text_layout_details(cx);
6451 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6452 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6453 let range = oldest_selection.display_range(&display_map).sorted();
6454
6455 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6456 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6457 let positions = start_x.min(end_x)..start_x.max(end_x);
6458
6459 selections.clear();
6460 let mut stack = Vec::new();
6461 for row in range.start.row()..=range.end.row() {
6462 if let Some(selection) = self.selections.build_columnar_selection(
6463 &display_map,
6464 row,
6465 &positions,
6466 oldest_selection.reversed,
6467 &text_layout_details,
6468 ) {
6469 stack.push(selection.id);
6470 selections.push(selection);
6471 }
6472 }
6473
6474 if above {
6475 stack.reverse();
6476 }
6477
6478 AddSelectionsState { above, stack }
6479 });
6480
6481 let last_added_selection = *state.stack.last().unwrap();
6482 let mut new_selections = Vec::new();
6483 if above == state.above {
6484 let end_row = if above {
6485 0
6486 } else {
6487 display_map.max_point().row()
6488 };
6489
6490 'outer: for selection in selections {
6491 if selection.id == last_added_selection {
6492 let range = selection.display_range(&display_map).sorted();
6493 debug_assert_eq!(range.start.row(), range.end.row());
6494 let mut row = range.start.row();
6495 let positions =
6496 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6497 px(start)..px(end)
6498 } else {
6499 let start_x =
6500 display_map.x_for_display_point(range.start, &text_layout_details);
6501 let end_x =
6502 display_map.x_for_display_point(range.end, &text_layout_details);
6503 start_x.min(end_x)..start_x.max(end_x)
6504 };
6505
6506 while row != end_row {
6507 if above {
6508 row -= 1;
6509 } else {
6510 row += 1;
6511 }
6512
6513 if let Some(new_selection) = self.selections.build_columnar_selection(
6514 &display_map,
6515 row,
6516 &positions,
6517 selection.reversed,
6518 &text_layout_details,
6519 ) {
6520 state.stack.push(new_selection.id);
6521 if above {
6522 new_selections.push(new_selection);
6523 new_selections.push(selection);
6524 } else {
6525 new_selections.push(selection);
6526 new_selections.push(new_selection);
6527 }
6528
6529 continue 'outer;
6530 }
6531 }
6532 }
6533
6534 new_selections.push(selection);
6535 }
6536 } else {
6537 new_selections = selections;
6538 new_selections.retain(|s| s.id != last_added_selection);
6539 state.stack.pop();
6540 }
6541
6542 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6543 s.select(new_selections);
6544 });
6545 if state.stack.len() > 1 {
6546 self.add_selections_state = Some(state);
6547 }
6548 }
6549
6550 pub fn select_next_match_internal(
6551 &mut self,
6552 display_map: &DisplaySnapshot,
6553 replace_newest: bool,
6554 autoscroll: Option<Autoscroll>,
6555 cx: &mut ViewContext<Self>,
6556 ) -> Result<()> {
6557 fn select_next_match_ranges(
6558 this: &mut Editor,
6559 range: Range<usize>,
6560 replace_newest: bool,
6561 auto_scroll: Option<Autoscroll>,
6562 cx: &mut ViewContext<Editor>,
6563 ) {
6564 this.unfold_ranges([range.clone()], false, true, cx);
6565 this.change_selections(auto_scroll, cx, |s| {
6566 if replace_newest {
6567 s.delete(s.newest_anchor().id);
6568 }
6569 s.insert_range(range.clone());
6570 });
6571 }
6572
6573 let buffer = &display_map.buffer_snapshot;
6574 let mut selections = self.selections.all::<usize>(cx);
6575 if let Some(mut select_next_state) = self.select_next_state.take() {
6576 let query = &select_next_state.query;
6577 if !select_next_state.done {
6578 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6579 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6580 let mut next_selected_range = None;
6581
6582 let bytes_after_last_selection =
6583 buffer.bytes_in_range(last_selection.end..buffer.len());
6584 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6585 let query_matches = query
6586 .stream_find_iter(bytes_after_last_selection)
6587 .map(|result| (last_selection.end, result))
6588 .chain(
6589 query
6590 .stream_find_iter(bytes_before_first_selection)
6591 .map(|result| (0, result)),
6592 );
6593
6594 for (start_offset, query_match) in query_matches {
6595 let query_match = query_match.unwrap(); // can only fail due to I/O
6596 let offset_range =
6597 start_offset + query_match.start()..start_offset + query_match.end();
6598 let display_range = offset_range.start.to_display_point(&display_map)
6599 ..offset_range.end.to_display_point(&display_map);
6600
6601 if !select_next_state.wordwise
6602 || (!movement::is_inside_word(&display_map, display_range.start)
6603 && !movement::is_inside_word(&display_map, display_range.end))
6604 {
6605 // TODO: This is n^2, because we might check all the selections
6606 if !selections
6607 .iter()
6608 .any(|selection| selection.range().overlaps(&offset_range))
6609 {
6610 next_selected_range = Some(offset_range);
6611 break;
6612 }
6613 }
6614 }
6615
6616 if let Some(next_selected_range) = next_selected_range {
6617 select_next_match_ranges(
6618 self,
6619 next_selected_range,
6620 replace_newest,
6621 autoscroll,
6622 cx,
6623 );
6624 } else {
6625 select_next_state.done = true;
6626 }
6627 }
6628
6629 self.select_next_state = Some(select_next_state);
6630 } else {
6631 let mut only_carets = true;
6632 let mut same_text_selected = true;
6633 let mut selected_text = None;
6634
6635 let mut selections_iter = selections.iter().peekable();
6636 while let Some(selection) = selections_iter.next() {
6637 if selection.start != selection.end {
6638 only_carets = false;
6639 }
6640
6641 if same_text_selected {
6642 if selected_text.is_none() {
6643 selected_text =
6644 Some(buffer.text_for_range(selection.range()).collect::<String>());
6645 }
6646
6647 if let Some(next_selection) = selections_iter.peek() {
6648 if next_selection.range().len() == selection.range().len() {
6649 let next_selected_text = buffer
6650 .text_for_range(next_selection.range())
6651 .collect::<String>();
6652 if Some(next_selected_text) != selected_text {
6653 same_text_selected = false;
6654 selected_text = None;
6655 }
6656 } else {
6657 same_text_selected = false;
6658 selected_text = None;
6659 }
6660 }
6661 }
6662 }
6663
6664 if only_carets {
6665 for selection in &mut selections {
6666 let word_range = movement::surrounding_word(
6667 &display_map,
6668 selection.start.to_display_point(&display_map),
6669 );
6670 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6671 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6672 selection.goal = SelectionGoal::None;
6673 selection.reversed = false;
6674 select_next_match_ranges(
6675 self,
6676 selection.start..selection.end,
6677 replace_newest,
6678 autoscroll,
6679 cx,
6680 );
6681 }
6682
6683 if selections.len() == 1 {
6684 let selection = selections
6685 .last()
6686 .expect("ensured that there's only one selection");
6687 let query = buffer
6688 .text_for_range(selection.start..selection.end)
6689 .collect::<String>();
6690 let is_empty = query.is_empty();
6691 let select_state = SelectNextState {
6692 query: AhoCorasick::new(&[query])?,
6693 wordwise: true,
6694 done: is_empty,
6695 };
6696 self.select_next_state = Some(select_state);
6697 } else {
6698 self.select_next_state = None;
6699 }
6700 } else if let Some(selected_text) = selected_text {
6701 self.select_next_state = Some(SelectNextState {
6702 query: AhoCorasick::new(&[selected_text])?,
6703 wordwise: false,
6704 done: false,
6705 });
6706 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6707 }
6708 }
6709 Ok(())
6710 }
6711
6712 pub fn select_all_matches(
6713 &mut self,
6714 _action: &SelectAllMatches,
6715 cx: &mut ViewContext<Self>,
6716 ) -> Result<()> {
6717 self.push_to_selection_history();
6718 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6719
6720 self.select_next_match_internal(&display_map, false, None, cx)?;
6721 let Some(select_next_state) = self.select_next_state.as_mut() else {
6722 return Ok(());
6723 };
6724 if select_next_state.done {
6725 return Ok(());
6726 }
6727
6728 let mut new_selections = self.selections.all::<usize>(cx);
6729
6730 let buffer = &display_map.buffer_snapshot;
6731 let query_matches = select_next_state
6732 .query
6733 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6734
6735 for query_match in query_matches {
6736 let query_match = query_match.unwrap(); // can only fail due to I/O
6737 let offset_range = query_match.start()..query_match.end();
6738 let display_range = offset_range.start.to_display_point(&display_map)
6739 ..offset_range.end.to_display_point(&display_map);
6740
6741 if !select_next_state.wordwise
6742 || (!movement::is_inside_word(&display_map, display_range.start)
6743 && !movement::is_inside_word(&display_map, display_range.end))
6744 {
6745 self.selections.change_with(cx, |selections| {
6746 new_selections.push(Selection {
6747 id: selections.new_selection_id(),
6748 start: offset_range.start,
6749 end: offset_range.end,
6750 reversed: false,
6751 goal: SelectionGoal::None,
6752 });
6753 });
6754 }
6755 }
6756
6757 new_selections.sort_by_key(|selection| selection.start);
6758 let mut ix = 0;
6759 while ix + 1 < new_selections.len() {
6760 let current_selection = &new_selections[ix];
6761 let next_selection = &new_selections[ix + 1];
6762 if current_selection.range().overlaps(&next_selection.range()) {
6763 if current_selection.id < next_selection.id {
6764 new_selections.remove(ix + 1);
6765 } else {
6766 new_selections.remove(ix);
6767 }
6768 } else {
6769 ix += 1;
6770 }
6771 }
6772
6773 select_next_state.done = true;
6774 self.unfold_ranges(
6775 new_selections.iter().map(|selection| selection.range()),
6776 false,
6777 false,
6778 cx,
6779 );
6780 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6781 selections.select(new_selections)
6782 });
6783
6784 Ok(())
6785 }
6786
6787 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6788 self.push_to_selection_history();
6789 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6790 self.select_next_match_internal(
6791 &display_map,
6792 action.replace_newest,
6793 Some(Autoscroll::newest()),
6794 cx,
6795 )?;
6796 Ok(())
6797 }
6798
6799 pub fn select_previous(
6800 &mut self,
6801 action: &SelectPrevious,
6802 cx: &mut ViewContext<Self>,
6803 ) -> Result<()> {
6804 self.push_to_selection_history();
6805 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6806 let buffer = &display_map.buffer_snapshot;
6807 let mut selections = self.selections.all::<usize>(cx);
6808 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6809 let query = &select_prev_state.query;
6810 if !select_prev_state.done {
6811 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6812 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6813 let mut next_selected_range = None;
6814 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6815 let bytes_before_last_selection =
6816 buffer.reversed_bytes_in_range(0..last_selection.start);
6817 let bytes_after_first_selection =
6818 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6819 let query_matches = query
6820 .stream_find_iter(bytes_before_last_selection)
6821 .map(|result| (last_selection.start, result))
6822 .chain(
6823 query
6824 .stream_find_iter(bytes_after_first_selection)
6825 .map(|result| (buffer.len(), result)),
6826 );
6827 for (end_offset, query_match) in query_matches {
6828 let query_match = query_match.unwrap(); // can only fail due to I/O
6829 let offset_range =
6830 end_offset - query_match.end()..end_offset - query_match.start();
6831 let display_range = offset_range.start.to_display_point(&display_map)
6832 ..offset_range.end.to_display_point(&display_map);
6833
6834 if !select_prev_state.wordwise
6835 || (!movement::is_inside_word(&display_map, display_range.start)
6836 && !movement::is_inside_word(&display_map, display_range.end))
6837 {
6838 next_selected_range = Some(offset_range);
6839 break;
6840 }
6841 }
6842
6843 if let Some(next_selected_range) = next_selected_range {
6844 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6845 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6846 if action.replace_newest {
6847 s.delete(s.newest_anchor().id);
6848 }
6849 s.insert_range(next_selected_range);
6850 });
6851 } else {
6852 select_prev_state.done = true;
6853 }
6854 }
6855
6856 self.select_prev_state = Some(select_prev_state);
6857 } else {
6858 let mut only_carets = true;
6859 let mut same_text_selected = true;
6860 let mut selected_text = None;
6861
6862 let mut selections_iter = selections.iter().peekable();
6863 while let Some(selection) = selections_iter.next() {
6864 if selection.start != selection.end {
6865 only_carets = false;
6866 }
6867
6868 if same_text_selected {
6869 if selected_text.is_none() {
6870 selected_text =
6871 Some(buffer.text_for_range(selection.range()).collect::<String>());
6872 }
6873
6874 if let Some(next_selection) = selections_iter.peek() {
6875 if next_selection.range().len() == selection.range().len() {
6876 let next_selected_text = buffer
6877 .text_for_range(next_selection.range())
6878 .collect::<String>();
6879 if Some(next_selected_text) != selected_text {
6880 same_text_selected = false;
6881 selected_text = None;
6882 }
6883 } else {
6884 same_text_selected = false;
6885 selected_text = None;
6886 }
6887 }
6888 }
6889 }
6890
6891 if only_carets {
6892 for selection in &mut selections {
6893 let word_range = movement::surrounding_word(
6894 &display_map,
6895 selection.start.to_display_point(&display_map),
6896 );
6897 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6898 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6899 selection.goal = SelectionGoal::None;
6900 selection.reversed = false;
6901 }
6902 if selections.len() == 1 {
6903 let selection = selections
6904 .last()
6905 .expect("ensured that there's only one selection");
6906 let query = buffer
6907 .text_for_range(selection.start..selection.end)
6908 .collect::<String>();
6909 let is_empty = query.is_empty();
6910 let select_state = SelectNextState {
6911 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6912 wordwise: true,
6913 done: is_empty,
6914 };
6915 self.select_prev_state = Some(select_state);
6916 } else {
6917 self.select_prev_state = None;
6918 }
6919
6920 self.unfold_ranges(
6921 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6922 false,
6923 true,
6924 cx,
6925 );
6926 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6927 s.select(selections);
6928 });
6929 } else if let Some(selected_text) = selected_text {
6930 self.select_prev_state = Some(SelectNextState {
6931 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6932 wordwise: false,
6933 done: false,
6934 });
6935 self.select_previous(action, cx)?;
6936 }
6937 }
6938 Ok(())
6939 }
6940
6941 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6942 let text_layout_details = &self.text_layout_details(cx);
6943 self.transact(cx, |this, cx| {
6944 let mut selections = this.selections.all::<Point>(cx);
6945 let mut edits = Vec::new();
6946 let mut selection_edit_ranges = Vec::new();
6947 let mut last_toggled_row = None;
6948 let snapshot = this.buffer.read(cx).read(cx);
6949 let empty_str: Arc<str> = "".into();
6950 let mut suffixes_inserted = Vec::new();
6951
6952 fn comment_prefix_range(
6953 snapshot: &MultiBufferSnapshot,
6954 row: u32,
6955 comment_prefix: &str,
6956 comment_prefix_whitespace: &str,
6957 ) -> Range<Point> {
6958 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6959
6960 let mut line_bytes = snapshot
6961 .bytes_in_range(start..snapshot.max_point())
6962 .flatten()
6963 .copied();
6964
6965 // If this line currently begins with the line comment prefix, then record
6966 // the range containing the prefix.
6967 if line_bytes
6968 .by_ref()
6969 .take(comment_prefix.len())
6970 .eq(comment_prefix.bytes())
6971 {
6972 // Include any whitespace that matches the comment prefix.
6973 let matching_whitespace_len = line_bytes
6974 .zip(comment_prefix_whitespace.bytes())
6975 .take_while(|(a, b)| a == b)
6976 .count() as u32;
6977 let end = Point::new(
6978 start.row,
6979 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6980 );
6981 start..end
6982 } else {
6983 start..start
6984 }
6985 }
6986
6987 fn comment_suffix_range(
6988 snapshot: &MultiBufferSnapshot,
6989 row: u32,
6990 comment_suffix: &str,
6991 comment_suffix_has_leading_space: bool,
6992 ) -> Range<Point> {
6993 let end = Point::new(row, snapshot.line_len(row));
6994 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6995
6996 let mut line_end_bytes = snapshot
6997 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6998 .flatten()
6999 .copied();
7000
7001 let leading_space_len = if suffix_start_column > 0
7002 && line_end_bytes.next() == Some(b' ')
7003 && comment_suffix_has_leading_space
7004 {
7005 1
7006 } else {
7007 0
7008 };
7009
7010 // If this line currently begins with the line comment prefix, then record
7011 // the range containing the prefix.
7012 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7013 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7014 start..end
7015 } else {
7016 end..end
7017 }
7018 }
7019
7020 // TODO: Handle selections that cross excerpts
7021 for selection in &mut selections {
7022 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7023 let language = if let Some(language) =
7024 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7025 {
7026 language
7027 } else {
7028 continue;
7029 };
7030
7031 selection_edit_ranges.clear();
7032
7033 // If multiple selections contain a given row, avoid processing that
7034 // row more than once.
7035 let mut start_row = selection.start.row;
7036 if last_toggled_row == Some(start_row) {
7037 start_row += 1;
7038 }
7039 let end_row =
7040 if selection.end.row > selection.start.row && selection.end.column == 0 {
7041 selection.end.row - 1
7042 } else {
7043 selection.end.row
7044 };
7045 last_toggled_row = Some(end_row);
7046
7047 if start_row > end_row {
7048 continue;
7049 }
7050
7051 // If the language has line comments, toggle those.
7052 if let Some(full_comment_prefix) = language
7053 .line_comment_prefixes()
7054 .and_then(|prefixes| prefixes.first())
7055 {
7056 // Split the comment prefix's trailing whitespace into a separate string,
7057 // as that portion won't be used for detecting if a line is a comment.
7058 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7059 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7060 let mut all_selection_lines_are_comments = true;
7061
7062 for row in start_row..=end_row {
7063 if start_row < end_row && snapshot.is_line_blank(row) {
7064 continue;
7065 }
7066
7067 let prefix_range = comment_prefix_range(
7068 snapshot.deref(),
7069 row,
7070 comment_prefix,
7071 comment_prefix_whitespace,
7072 );
7073 if prefix_range.is_empty() {
7074 all_selection_lines_are_comments = false;
7075 }
7076 selection_edit_ranges.push(prefix_range);
7077 }
7078
7079 if all_selection_lines_are_comments {
7080 edits.extend(
7081 selection_edit_ranges
7082 .iter()
7083 .cloned()
7084 .map(|range| (range, empty_str.clone())),
7085 );
7086 } else {
7087 let min_column = selection_edit_ranges
7088 .iter()
7089 .map(|r| r.start.column)
7090 .min()
7091 .unwrap_or(0);
7092 edits.extend(selection_edit_ranges.iter().map(|range| {
7093 let position = Point::new(range.start.row, min_column);
7094 (position..position, full_comment_prefix.clone())
7095 }));
7096 }
7097 } else if let Some((full_comment_prefix, comment_suffix)) =
7098 language.block_comment_delimiters()
7099 {
7100 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7101 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7102 let prefix_range = comment_prefix_range(
7103 snapshot.deref(),
7104 start_row,
7105 comment_prefix,
7106 comment_prefix_whitespace,
7107 );
7108 let suffix_range = comment_suffix_range(
7109 snapshot.deref(),
7110 end_row,
7111 comment_suffix.trim_start_matches(' '),
7112 comment_suffix.starts_with(' '),
7113 );
7114
7115 if prefix_range.is_empty() || suffix_range.is_empty() {
7116 edits.push((
7117 prefix_range.start..prefix_range.start,
7118 full_comment_prefix.clone(),
7119 ));
7120 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7121 suffixes_inserted.push((end_row, comment_suffix.len()));
7122 } else {
7123 edits.push((prefix_range, empty_str.clone()));
7124 edits.push((suffix_range, empty_str.clone()));
7125 }
7126 } else {
7127 continue;
7128 }
7129 }
7130
7131 drop(snapshot);
7132 this.buffer.update(cx, |buffer, cx| {
7133 buffer.edit(edits, None, cx);
7134 });
7135
7136 // Adjust selections so that they end before any comment suffixes that
7137 // were inserted.
7138 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7139 let mut selections = this.selections.all::<Point>(cx);
7140 let snapshot = this.buffer.read(cx).read(cx);
7141 for selection in &mut selections {
7142 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7143 match row.cmp(&selection.end.row) {
7144 Ordering::Less => {
7145 suffixes_inserted.next();
7146 continue;
7147 }
7148 Ordering::Greater => break,
7149 Ordering::Equal => {
7150 if selection.end.column == snapshot.line_len(row) {
7151 if selection.is_empty() {
7152 selection.start.column -= suffix_len as u32;
7153 }
7154 selection.end.column -= suffix_len as u32;
7155 }
7156 break;
7157 }
7158 }
7159 }
7160 }
7161
7162 drop(snapshot);
7163 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7164
7165 let selections = this.selections.all::<Point>(cx);
7166 let selections_on_single_row = selections.windows(2).all(|selections| {
7167 selections[0].start.row == selections[1].start.row
7168 && selections[0].end.row == selections[1].end.row
7169 && selections[0].start.row == selections[0].end.row
7170 });
7171 let selections_selecting = selections
7172 .iter()
7173 .any(|selection| selection.start != selection.end);
7174 let advance_downwards = action.advance_downwards
7175 && selections_on_single_row
7176 && !selections_selecting
7177 && this.mode != EditorMode::SingleLine;
7178
7179 if advance_downwards {
7180 let snapshot = this.buffer.read(cx).snapshot(cx);
7181
7182 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7183 s.move_cursors_with(|display_snapshot, display_point, _| {
7184 let mut point = display_point.to_point(display_snapshot);
7185 point.row += 1;
7186 point = snapshot.clip_point(point, Bias::Left);
7187 let display_point = point.to_display_point(display_snapshot);
7188 let goal = SelectionGoal::HorizontalPosition(
7189 display_snapshot
7190 .x_for_display_point(display_point, &text_layout_details)
7191 .into(),
7192 );
7193 (display_point, goal)
7194 })
7195 });
7196 }
7197 });
7198 }
7199
7200 pub fn select_larger_syntax_node(
7201 &mut self,
7202 _: &SelectLargerSyntaxNode,
7203 cx: &mut ViewContext<Self>,
7204 ) {
7205 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7206 let buffer = self.buffer.read(cx).snapshot(cx);
7207 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7208
7209 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7210 let mut selected_larger_node = false;
7211 let new_selections = old_selections
7212 .iter()
7213 .map(|selection| {
7214 let old_range = selection.start..selection.end;
7215 let mut new_range = old_range.clone();
7216 while let Some(containing_range) =
7217 buffer.range_for_syntax_ancestor(new_range.clone())
7218 {
7219 new_range = containing_range;
7220 if !display_map.intersects_fold(new_range.start)
7221 && !display_map.intersects_fold(new_range.end)
7222 {
7223 break;
7224 }
7225 }
7226
7227 selected_larger_node |= new_range != old_range;
7228 Selection {
7229 id: selection.id,
7230 start: new_range.start,
7231 end: new_range.end,
7232 goal: SelectionGoal::None,
7233 reversed: selection.reversed,
7234 }
7235 })
7236 .collect::<Vec<_>>();
7237
7238 if selected_larger_node {
7239 stack.push(old_selections);
7240 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7241 s.select(new_selections);
7242 });
7243 }
7244 self.select_larger_syntax_node_stack = stack;
7245 }
7246
7247 pub fn select_smaller_syntax_node(
7248 &mut self,
7249 _: &SelectSmallerSyntaxNode,
7250 cx: &mut ViewContext<Self>,
7251 ) {
7252 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7253 if let Some(selections) = stack.pop() {
7254 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7255 s.select(selections.to_vec());
7256 });
7257 }
7258 self.select_larger_syntax_node_stack = stack;
7259 }
7260
7261 pub fn move_to_enclosing_bracket(
7262 &mut self,
7263 _: &MoveToEnclosingBracket,
7264 cx: &mut ViewContext<Self>,
7265 ) {
7266 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7267 s.move_offsets_with(|snapshot, selection| {
7268 let Some(enclosing_bracket_ranges) =
7269 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7270 else {
7271 return;
7272 };
7273
7274 let mut best_length = usize::MAX;
7275 let mut best_inside = false;
7276 let mut best_in_bracket_range = false;
7277 let mut best_destination = None;
7278 for (open, close) in enclosing_bracket_ranges {
7279 let close = close.to_inclusive();
7280 let length = close.end() - open.start;
7281 let inside = selection.start >= open.end && selection.end <= *close.start();
7282 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7283 || close.contains(&selection.head());
7284
7285 // If best is next to a bracket and current isn't, skip
7286 if !in_bracket_range && best_in_bracket_range {
7287 continue;
7288 }
7289
7290 // Prefer smaller lengths unless best is inside and current isn't
7291 if length > best_length && (best_inside || !inside) {
7292 continue;
7293 }
7294
7295 best_length = length;
7296 best_inside = inside;
7297 best_in_bracket_range = in_bracket_range;
7298 best_destination = Some(
7299 if close.contains(&selection.start) && close.contains(&selection.end) {
7300 if inside {
7301 open.end
7302 } else {
7303 open.start
7304 }
7305 } else {
7306 if inside {
7307 *close.start()
7308 } else {
7309 *close.end()
7310 }
7311 },
7312 );
7313 }
7314
7315 if let Some(destination) = best_destination {
7316 selection.collapse_to(destination, SelectionGoal::None);
7317 }
7318 })
7319 });
7320 }
7321
7322 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7323 self.end_selection(cx);
7324 self.selection_history.mode = SelectionHistoryMode::Undoing;
7325 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7326 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7327 self.select_next_state = entry.select_next_state;
7328 self.select_prev_state = entry.select_prev_state;
7329 self.add_selections_state = entry.add_selections_state;
7330 self.request_autoscroll(Autoscroll::newest(), cx);
7331 }
7332 self.selection_history.mode = SelectionHistoryMode::Normal;
7333 }
7334
7335 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7336 self.end_selection(cx);
7337 self.selection_history.mode = SelectionHistoryMode::Redoing;
7338 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7339 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7340 self.select_next_state = entry.select_next_state;
7341 self.select_prev_state = entry.select_prev_state;
7342 self.add_selections_state = entry.add_selections_state;
7343 self.request_autoscroll(Autoscroll::newest(), cx);
7344 }
7345 self.selection_history.mode = SelectionHistoryMode::Normal;
7346 }
7347
7348 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7349 self.go_to_diagnostic_impl(Direction::Next, cx)
7350 }
7351
7352 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7353 self.go_to_diagnostic_impl(Direction::Prev, cx)
7354 }
7355
7356 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7357 let buffer = self.buffer.read(cx).snapshot(cx);
7358 let selection = self.selections.newest::<usize>(cx);
7359
7360 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7361 if direction == Direction::Next {
7362 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7363 let (group_id, jump_to) = popover.activation_info();
7364 if self.activate_diagnostics(group_id, cx) {
7365 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7366 let mut new_selection = s.newest_anchor().clone();
7367 new_selection.collapse_to(jump_to, SelectionGoal::None);
7368 s.select_anchors(vec![new_selection.clone()]);
7369 });
7370 }
7371 return;
7372 }
7373 }
7374
7375 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7376 active_diagnostics
7377 .primary_range
7378 .to_offset(&buffer)
7379 .to_inclusive()
7380 });
7381 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7382 if active_primary_range.contains(&selection.head()) {
7383 *active_primary_range.end()
7384 } else {
7385 selection.head()
7386 }
7387 } else {
7388 selection.head()
7389 };
7390
7391 loop {
7392 let mut diagnostics = if direction == Direction::Prev {
7393 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7394 } else {
7395 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7396 };
7397 let group = diagnostics.find_map(|entry| {
7398 if entry.diagnostic.is_primary
7399 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7400 && !entry.range.is_empty()
7401 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7402 && !entry.range.contains(&search_start)
7403 {
7404 Some((entry.range, entry.diagnostic.group_id))
7405 } else {
7406 None
7407 }
7408 });
7409
7410 if let Some((primary_range, group_id)) = group {
7411 if self.activate_diagnostics(group_id, cx) {
7412 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7413 s.select(vec![Selection {
7414 id: selection.id,
7415 start: primary_range.start,
7416 end: primary_range.start,
7417 reversed: false,
7418 goal: SelectionGoal::None,
7419 }]);
7420 });
7421 }
7422 break;
7423 } else {
7424 // Cycle around to the start of the buffer, potentially moving back to the start of
7425 // the currently active diagnostic.
7426 active_primary_range.take();
7427 if direction == Direction::Prev {
7428 if search_start == buffer.len() {
7429 break;
7430 } else {
7431 search_start = buffer.len();
7432 }
7433 } else if search_start == 0 {
7434 break;
7435 } else {
7436 search_start = 0;
7437 }
7438 }
7439 }
7440 }
7441
7442 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7443 let snapshot = self
7444 .display_map
7445 .update(cx, |display_map, cx| display_map.snapshot(cx));
7446 let selection = self.selections.newest::<Point>(cx);
7447
7448 if !self.seek_in_direction(
7449 &snapshot,
7450 selection.head(),
7451 false,
7452 snapshot
7453 .buffer_snapshot
7454 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7455 cx,
7456 ) {
7457 let wrapped_point = Point::zero();
7458 self.seek_in_direction(
7459 &snapshot,
7460 wrapped_point,
7461 true,
7462 snapshot
7463 .buffer_snapshot
7464 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7465 cx,
7466 );
7467 }
7468 }
7469
7470 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7471 let snapshot = self
7472 .display_map
7473 .update(cx, |display_map, cx| display_map.snapshot(cx));
7474 let selection = self.selections.newest::<Point>(cx);
7475
7476 if !self.seek_in_direction(
7477 &snapshot,
7478 selection.head(),
7479 false,
7480 snapshot
7481 .buffer_snapshot
7482 .git_diff_hunks_in_range_rev(0..selection.head().row),
7483 cx,
7484 ) {
7485 let wrapped_point = snapshot.buffer_snapshot.max_point();
7486 self.seek_in_direction(
7487 &snapshot,
7488 wrapped_point,
7489 true,
7490 snapshot
7491 .buffer_snapshot
7492 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7493 cx,
7494 );
7495 }
7496 }
7497
7498 fn seek_in_direction(
7499 &mut self,
7500 snapshot: &DisplaySnapshot,
7501 initial_point: Point,
7502 is_wrapped: bool,
7503 hunks: impl Iterator<Item = DiffHunk<u32>>,
7504 cx: &mut ViewContext<Editor>,
7505 ) -> bool {
7506 let display_point = initial_point.to_display_point(snapshot);
7507 let mut hunks = hunks
7508 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7509 .filter(|hunk| {
7510 if is_wrapped {
7511 true
7512 } else {
7513 !hunk.contains_display_row(display_point.row())
7514 }
7515 })
7516 .dedup();
7517
7518 if let Some(hunk) = hunks.next() {
7519 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7520 let row = hunk.start_display_row();
7521 let point = DisplayPoint::new(row, 0);
7522 s.select_display_ranges([point..point]);
7523 });
7524
7525 true
7526 } else {
7527 false
7528 }
7529 }
7530
7531 pub fn go_to_definition(
7532 &mut self,
7533 _: &GoToDefinition,
7534 cx: &mut ViewContext<Self>,
7535 ) -> Task<Result<bool>> {
7536 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
7537 }
7538
7539 pub fn go_to_implementation(
7540 &mut self,
7541 _: &GoToImplementation,
7542 cx: &mut ViewContext<Self>,
7543 ) -> Task<Result<bool>> {
7544 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
7545 }
7546
7547 pub fn go_to_implementation_split(
7548 &mut self,
7549 _: &GoToImplementationSplit,
7550 cx: &mut ViewContext<Self>,
7551 ) -> Task<Result<bool>> {
7552 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
7553 }
7554
7555 pub fn go_to_type_definition(
7556 &mut self,
7557 _: &GoToTypeDefinition,
7558 cx: &mut ViewContext<Self>,
7559 ) -> Task<Result<bool>> {
7560 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
7561 }
7562
7563 pub fn go_to_definition_split(
7564 &mut self,
7565 _: &GoToDefinitionSplit,
7566 cx: &mut ViewContext<Self>,
7567 ) -> Task<Result<bool>> {
7568 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
7569 }
7570
7571 pub fn go_to_type_definition_split(
7572 &mut self,
7573 _: &GoToTypeDefinitionSplit,
7574 cx: &mut ViewContext<Self>,
7575 ) -> Task<Result<bool>> {
7576 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
7577 }
7578
7579 fn go_to_definition_of_kind(
7580 &mut self,
7581 kind: GotoDefinitionKind,
7582 split: bool,
7583 cx: &mut ViewContext<Self>,
7584 ) -> Task<Result<bool>> {
7585 let Some(workspace) = self.workspace() else {
7586 return Task::ready(Ok(false));
7587 };
7588 let buffer = self.buffer.read(cx);
7589 let head = self.selections.newest::<usize>(cx).head();
7590 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7591 text_anchor
7592 } else {
7593 return Task::ready(Ok(false));
7594 };
7595
7596 let project = workspace.read(cx).project().clone();
7597 let definitions = project.update(cx, |project, cx| match kind {
7598 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7599 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7600 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7601 });
7602
7603 cx.spawn(|editor, mut cx| async move {
7604 let definitions = definitions.await?;
7605 let navigated = editor
7606 .update(&mut cx, |editor, cx| {
7607 editor.navigate_to_hover_links(
7608 Some(kind),
7609 definitions.into_iter().map(HoverLink::Text).collect(),
7610 split,
7611 cx,
7612 )
7613 })?
7614 .await?;
7615 anyhow::Ok(navigated)
7616 })
7617 }
7618
7619 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7620 let position = self.selections.newest_anchor().head();
7621 let Some((buffer, buffer_position)) =
7622 self.buffer.read(cx).text_anchor_for_position(position, cx)
7623 else {
7624 return;
7625 };
7626
7627 cx.spawn(|editor, mut cx| async move {
7628 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7629 editor.update(&mut cx, |_, cx| {
7630 cx.open_url(&url);
7631 })
7632 } else {
7633 Ok(())
7634 }
7635 })
7636 .detach();
7637 }
7638
7639 pub(crate) fn navigate_to_hover_links(
7640 &mut self,
7641 kind: Option<GotoDefinitionKind>,
7642 mut definitions: Vec<HoverLink>,
7643 split: bool,
7644 cx: &mut ViewContext<Editor>,
7645 ) -> Task<Result<bool>> {
7646 // If there is one definition, just open it directly
7647 if definitions.len() == 1 {
7648 let definition = definitions.pop().unwrap();
7649 let target_task = match definition {
7650 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7651 HoverLink::InlayHint(lsp_location, server_id) => {
7652 self.compute_target_location(lsp_location, server_id, cx)
7653 }
7654 HoverLink::Url(url) => {
7655 cx.open_url(&url);
7656 Task::ready(Ok(None))
7657 }
7658 };
7659 cx.spawn(|editor, mut cx| async move {
7660 let target = target_task.await.context("target resolution task")?;
7661 if let Some(target) = target {
7662 editor.update(&mut cx, |editor, cx| {
7663 let Some(workspace) = editor.workspace() else {
7664 return false;
7665 };
7666 let pane = workspace.read(cx).active_pane().clone();
7667
7668 let range = target.range.to_offset(target.buffer.read(cx));
7669 let range = editor.range_for_match(&range);
7670 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7671 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
7672 s.select_ranges([range]);
7673 });
7674 } else {
7675 cx.window_context().defer(move |cx| {
7676 let target_editor: View<Self> =
7677 workspace.update(cx, |workspace, cx| {
7678 let pane = if split {
7679 workspace.adjacent_pane(cx)
7680 } else {
7681 workspace.active_pane().clone()
7682 };
7683
7684 workspace.open_project_item(pane, target.buffer.clone(), cx)
7685 });
7686 target_editor.update(cx, |target_editor, cx| {
7687 // When selecting a definition in a different buffer, disable the nav history
7688 // to avoid creating a history entry at the previous cursor location.
7689 pane.update(cx, |pane, _| pane.disable_history());
7690 target_editor.change_selections(
7691 Some(Autoscroll::focused()),
7692 cx,
7693 |s| {
7694 s.select_ranges([range]);
7695 },
7696 );
7697 pane.update(cx, |pane, _| pane.enable_history());
7698 });
7699 });
7700 }
7701 true
7702 })
7703 } else {
7704 Ok(false)
7705 }
7706 })
7707 } else if !definitions.is_empty() {
7708 let replica_id = self.replica_id(cx);
7709 cx.spawn(|editor, mut cx| async move {
7710 let (title, location_tasks, workspace) = editor
7711 .update(&mut cx, |editor, cx| {
7712 let tab_kind = match kind {
7713 Some(GotoDefinitionKind::Implementation) => "Implementations",
7714 _ => "Definitions",
7715 };
7716 let title = definitions
7717 .iter()
7718 .find_map(|definition| match definition {
7719 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7720 let buffer = origin.buffer.read(cx);
7721 format!(
7722 "{} for {}",
7723 tab_kind,
7724 buffer
7725 .text_for_range(origin.range.clone())
7726 .collect::<String>()
7727 )
7728 }),
7729 HoverLink::InlayHint(_, _) => None,
7730 HoverLink::Url(_) => None,
7731 })
7732 .unwrap_or(tab_kind.to_string());
7733 let location_tasks = definitions
7734 .into_iter()
7735 .map(|definition| match definition {
7736 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7737 HoverLink::InlayHint(lsp_location, server_id) => {
7738 editor.compute_target_location(lsp_location, server_id, cx)
7739 }
7740 HoverLink::Url(_) => Task::ready(Ok(None)),
7741 })
7742 .collect::<Vec<_>>();
7743 (title, location_tasks, editor.workspace().clone())
7744 })
7745 .context("location tasks preparation")?;
7746
7747 let locations = futures::future::join_all(location_tasks)
7748 .await
7749 .into_iter()
7750 .filter_map(|location| location.transpose())
7751 .collect::<Result<_>>()
7752 .context("location tasks")?;
7753
7754 let Some(workspace) = workspace else {
7755 return Ok(false);
7756 };
7757 let opened = workspace
7758 .update(&mut cx, |workspace, cx| {
7759 Self::open_locations_in_multibuffer(
7760 workspace, locations, replica_id, title, split, cx,
7761 )
7762 })
7763 .ok();
7764
7765 anyhow::Ok(opened.is_some())
7766 })
7767 } else {
7768 Task::ready(Ok(false))
7769 }
7770 }
7771
7772 fn compute_target_location(
7773 &self,
7774 lsp_location: lsp::Location,
7775 server_id: LanguageServerId,
7776 cx: &mut ViewContext<Editor>,
7777 ) -> Task<anyhow::Result<Option<Location>>> {
7778 let Some(project) = self.project.clone() else {
7779 return Task::Ready(Some(Ok(None)));
7780 };
7781
7782 cx.spawn(move |editor, mut cx| async move {
7783 let location_task = editor.update(&mut cx, |editor, cx| {
7784 project.update(cx, |project, cx| {
7785 let language_server_name =
7786 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7787 project
7788 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7789 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7790 });
7791 language_server_name.map(|language_server_name| {
7792 project.open_local_buffer_via_lsp(
7793 lsp_location.uri.clone(),
7794 server_id,
7795 language_server_name,
7796 cx,
7797 )
7798 })
7799 })
7800 })?;
7801 let location = match location_task {
7802 Some(task) => Some({
7803 let target_buffer_handle = task.await.context("open local buffer")?;
7804 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7805 let target_start = target_buffer
7806 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7807 let target_end = target_buffer
7808 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7809 target_buffer.anchor_after(target_start)
7810 ..target_buffer.anchor_before(target_end)
7811 })?;
7812 Location {
7813 buffer: target_buffer_handle,
7814 range,
7815 }
7816 }),
7817 None => None,
7818 };
7819 Ok(location)
7820 })
7821 }
7822
7823 pub fn find_all_references(
7824 &mut self,
7825 _: &FindAllReferences,
7826 cx: &mut ViewContext<Self>,
7827 ) -> Option<Task<Result<()>>> {
7828 let multi_buffer = self.buffer.read(cx);
7829 let selection = self.selections.newest::<usize>(cx);
7830 let head = selection.head();
7831
7832 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
7833 let head_anchor = multi_buffer_snapshot.anchor_at(
7834 head,
7835 if head < selection.tail() {
7836 Bias::Right
7837 } else {
7838 Bias::Left
7839 },
7840 );
7841 match self
7842 .find_all_references_task_sources
7843 .binary_search_by(|task_anchor| task_anchor.cmp(&head_anchor, &multi_buffer_snapshot))
7844 {
7845 Ok(_) => {
7846 log::info!(
7847 "Ignoring repeated FindAllReferences invocation with the position of already running task"
7848 );
7849 return None;
7850 }
7851 Err(i) => {
7852 self.find_all_references_task_sources.insert(i, head_anchor);
7853 }
7854 }
7855
7856 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
7857 let replica_id = self.replica_id(cx);
7858 let workspace = self.workspace()?;
7859 let project = workspace.read(cx).project().clone();
7860 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7861 let open_task = cx.spawn(|editor, mut cx| async move {
7862 let mut locations = references.await?;
7863 let snapshot = buffer.update(&mut cx, |buffer, _| buffer.snapshot())?;
7864 let head_offset = text::ToOffset::to_offset(&head, &snapshot);
7865
7866 // LSP may return references that contain the item itself we requested `find_all_references` for (eg. rust-analyzer)
7867 // So we will remove it from locations
7868 // If there is only one reference, we will not do this filter cause it may make locations empty
7869 if locations.len() > 1 {
7870 cx.update(|cx| {
7871 locations.retain(|location| {
7872 // fn foo(x : i64) {
7873 // ^
7874 // println!(x);
7875 // }
7876 // It is ok to find reference when caret being at ^ (the end of the word)
7877 // So we turn offset into inclusive to include the end of the word
7878 !location
7879 .range
7880 .to_offset(location.buffer.read(cx))
7881 .to_inclusive()
7882 .contains(&head_offset)
7883 });
7884 })?;
7885 }
7886
7887 if locations.is_empty() {
7888 return Ok(());
7889 }
7890
7891 // If there is one reference, just open it directly
7892 if locations.len() == 1 {
7893 let target = locations.pop().unwrap();
7894
7895 return editor.update(&mut cx, |editor, cx| {
7896 let range = target.range.to_offset(target.buffer.read(cx));
7897 let range = editor.range_for_match(&range);
7898
7899 if Some(&target.buffer) == editor.buffer().read(cx).as_singleton().as_ref() {
7900 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7901 s.select_ranges([range]);
7902 });
7903 } else {
7904 cx.window_context().defer(move |cx| {
7905 let target_editor: View<Self> =
7906 workspace.update(cx, |workspace, cx| {
7907 workspace.open_project_item(
7908 workspace.active_pane().clone(),
7909 target.buffer.clone(),
7910 cx,
7911 )
7912 });
7913 target_editor.update(cx, |target_editor, cx| {
7914 target_editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7915 s.select_ranges([range]);
7916 })
7917 })
7918 })
7919 }
7920 });
7921 }
7922
7923 workspace.update(&mut cx, |workspace, cx| {
7924 let title = locations
7925 .first()
7926 .as_ref()
7927 .map(|location| {
7928 let buffer = location.buffer.read(cx);
7929 format!(
7930 "References to `{}`",
7931 buffer
7932 .text_for_range(location.range.clone())
7933 .collect::<String>()
7934 )
7935 })
7936 .unwrap();
7937 Self::open_locations_in_multibuffer(
7938 workspace, locations, replica_id, title, false, cx,
7939 );
7940 })?;
7941
7942 Ok(())
7943 });
7944 Some(cx.spawn(|editor, mut cx| async move {
7945 open_task.await?;
7946 editor.update(&mut cx, |editor, _| {
7947 if let Ok(i) =
7948 editor
7949 .find_all_references_task_sources
7950 .binary_search_by(|task_anchor| {
7951 task_anchor.cmp(&head_anchor, &multi_buffer_snapshot)
7952 })
7953 {
7954 editor.find_all_references_task_sources.remove(i);
7955 }
7956 })?;
7957 anyhow::Ok(())
7958 }))
7959 }
7960
7961 /// Opens a multibuffer with the given project locations in it
7962 pub fn open_locations_in_multibuffer(
7963 workspace: &mut Workspace,
7964 mut locations: Vec<Location>,
7965 replica_id: ReplicaId,
7966 title: String,
7967 split: bool,
7968 cx: &mut ViewContext<Workspace>,
7969 ) {
7970 // If there are multiple definitions, open them in a multibuffer
7971 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7972 let mut locations = locations.into_iter().peekable();
7973 let mut ranges_to_highlight = Vec::new();
7974 let capability = workspace.project().read(cx).capability();
7975
7976 let excerpt_buffer = cx.new_model(|cx| {
7977 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7978 while let Some(location) = locations.next() {
7979 let buffer = location.buffer.read(cx);
7980 let mut ranges_for_buffer = Vec::new();
7981 let range = location.range.to_offset(buffer);
7982 ranges_for_buffer.push(range.clone());
7983
7984 while let Some(next_location) = locations.peek() {
7985 if next_location.buffer == location.buffer {
7986 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7987 locations.next();
7988 } else {
7989 break;
7990 }
7991 }
7992
7993 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7994 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7995 location.buffer.clone(),
7996 ranges_for_buffer,
7997 1,
7998 cx,
7999 ))
8000 }
8001
8002 multibuffer.with_title(title)
8003 });
8004
8005 let editor = cx.new_view(|cx| {
8006 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8007 });
8008 editor.update(cx, |editor, cx| {
8009 editor.highlight_background::<Self>(
8010 ranges_to_highlight,
8011 |theme| theme.editor_highlighted_line_background,
8012 cx,
8013 );
8014 });
8015 if split {
8016 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
8017 } else {
8018 workspace.add_item_to_active_pane(Box::new(editor), cx);
8019 }
8020 }
8021
8022 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8023 use language::ToOffset as _;
8024
8025 let project = self.project.clone()?;
8026 let selection = self.selections.newest_anchor().clone();
8027 let (cursor_buffer, cursor_buffer_position) = self
8028 .buffer
8029 .read(cx)
8030 .text_anchor_for_position(selection.head(), cx)?;
8031 let (tail_buffer, _) = self
8032 .buffer
8033 .read(cx)
8034 .text_anchor_for_position(selection.tail(), cx)?;
8035 if tail_buffer != cursor_buffer {
8036 return None;
8037 }
8038
8039 let snapshot = cursor_buffer.read(cx).snapshot();
8040 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8041 let prepare_rename = project.update(cx, |project, cx| {
8042 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8043 });
8044 drop(snapshot);
8045
8046 Some(cx.spawn(|this, mut cx| async move {
8047 let rename_range = if let Some(range) = prepare_rename.await? {
8048 Some(range)
8049 } else {
8050 this.update(&mut cx, |this, cx| {
8051 let buffer = this.buffer.read(cx).snapshot(cx);
8052 let mut buffer_highlights = this
8053 .document_highlights_for_position(selection.head(), &buffer)
8054 .filter(|highlight| {
8055 highlight.start.excerpt_id == selection.head().excerpt_id
8056 && highlight.end.excerpt_id == selection.head().excerpt_id
8057 });
8058 buffer_highlights
8059 .next()
8060 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8061 })?
8062 };
8063 if let Some(rename_range) = rename_range {
8064 this.update(&mut cx, |this, cx| {
8065 let snapshot = cursor_buffer.read(cx).snapshot();
8066 let rename_buffer_range = rename_range.to_offset(&snapshot);
8067 let cursor_offset_in_rename_range =
8068 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8069
8070 this.take_rename(false, cx);
8071 let buffer = this.buffer.read(cx).read(cx);
8072 let cursor_offset = selection.head().to_offset(&buffer);
8073 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8074 let rename_end = rename_start + rename_buffer_range.len();
8075 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8076 let mut old_highlight_id = None;
8077 let old_name: Arc<str> = buffer
8078 .chunks(rename_start..rename_end, true)
8079 .map(|chunk| {
8080 if old_highlight_id.is_none() {
8081 old_highlight_id = chunk.syntax_highlight_id;
8082 }
8083 chunk.text
8084 })
8085 .collect::<String>()
8086 .into();
8087
8088 drop(buffer);
8089
8090 // Position the selection in the rename editor so that it matches the current selection.
8091 this.show_local_selections = false;
8092 let rename_editor = cx.new_view(|cx| {
8093 let mut editor = Editor::single_line(cx);
8094 editor.buffer.update(cx, |buffer, cx| {
8095 buffer.edit([(0..0, old_name.clone())], None, cx)
8096 });
8097 editor.select_all(&SelectAll, cx);
8098 editor
8099 });
8100
8101 let ranges = this
8102 .clear_background_highlights::<DocumentHighlightWrite>(cx)
8103 .into_iter()
8104 .flat_map(|(_, ranges)| ranges.into_iter())
8105 .chain(
8106 this.clear_background_highlights::<DocumentHighlightRead>(cx)
8107 .into_iter()
8108 .flat_map(|(_, ranges)| ranges.into_iter()),
8109 )
8110 .collect();
8111
8112 this.highlight_text::<Rename>(
8113 ranges,
8114 HighlightStyle {
8115 fade_out: Some(0.6),
8116 ..Default::default()
8117 },
8118 cx,
8119 );
8120 let rename_focus_handle = rename_editor.focus_handle(cx);
8121 cx.focus(&rename_focus_handle);
8122 let block_id = this.insert_blocks(
8123 [BlockProperties {
8124 style: BlockStyle::Flex,
8125 position: range.start,
8126 height: 1,
8127 render: Arc::new({
8128 let rename_editor = rename_editor.clone();
8129 move |cx: &mut BlockContext| {
8130 let mut text_style = cx.editor_style.text.clone();
8131 if let Some(highlight_style) = old_highlight_id
8132 .and_then(|h| h.style(&cx.editor_style.syntax))
8133 {
8134 text_style = text_style.highlight(highlight_style);
8135 }
8136 div()
8137 .pl(cx.anchor_x)
8138 .child(EditorElement::new(
8139 &rename_editor,
8140 EditorStyle {
8141 background: cx.theme().system().transparent,
8142 local_player: cx.editor_style.local_player,
8143 text: text_style,
8144 scrollbar_width: cx.editor_style.scrollbar_width,
8145 syntax: cx.editor_style.syntax.clone(),
8146 status: cx.editor_style.status.clone(),
8147 inlay_hints_style: HighlightStyle {
8148 color: Some(cx.theme().status().hint),
8149 font_weight: Some(FontWeight::BOLD),
8150 ..HighlightStyle::default()
8151 },
8152 suggestions_style: HighlightStyle {
8153 color: Some(cx.theme().status().predictive),
8154 ..HighlightStyle::default()
8155 },
8156 },
8157 ))
8158 .into_any_element()
8159 }
8160 }),
8161 disposition: BlockDisposition::Below,
8162 }],
8163 Some(Autoscroll::fit()),
8164 cx,
8165 )[0];
8166 this.pending_rename = Some(RenameState {
8167 range,
8168 old_name,
8169 editor: rename_editor,
8170 block_id,
8171 });
8172 })?;
8173 }
8174
8175 Ok(())
8176 }))
8177 }
8178
8179 pub fn confirm_rename(
8180 &mut self,
8181 _: &ConfirmRename,
8182 cx: &mut ViewContext<Self>,
8183 ) -> Option<Task<Result<()>>> {
8184 let rename = self.take_rename(false, cx)?;
8185 let workspace = self.workspace()?;
8186 let (start_buffer, start) = self
8187 .buffer
8188 .read(cx)
8189 .text_anchor_for_position(rename.range.start, cx)?;
8190 let (end_buffer, end) = self
8191 .buffer
8192 .read(cx)
8193 .text_anchor_for_position(rename.range.end, cx)?;
8194 if start_buffer != end_buffer {
8195 return None;
8196 }
8197
8198 let buffer = start_buffer;
8199 let range = start..end;
8200 let old_name = rename.old_name;
8201 let new_name = rename.editor.read(cx).text(cx);
8202
8203 let rename = workspace
8204 .read(cx)
8205 .project()
8206 .clone()
8207 .update(cx, |project, cx| {
8208 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8209 });
8210 let workspace = workspace.downgrade();
8211
8212 Some(cx.spawn(|editor, mut cx| async move {
8213 let project_transaction = rename.await?;
8214 Self::open_project_transaction(
8215 &editor,
8216 workspace,
8217 project_transaction,
8218 format!("Rename: {} → {}", old_name, new_name),
8219 cx.clone(),
8220 )
8221 .await?;
8222
8223 editor.update(&mut cx, |editor, cx| {
8224 editor.refresh_document_highlights(cx);
8225 })?;
8226 Ok(())
8227 }))
8228 }
8229
8230 fn take_rename(
8231 &mut self,
8232 moving_cursor: bool,
8233 cx: &mut ViewContext<Self>,
8234 ) -> Option<RenameState> {
8235 let rename = self.pending_rename.take()?;
8236 if rename.editor.focus_handle(cx).is_focused(cx) {
8237 cx.focus(&self.focus_handle);
8238 }
8239
8240 self.remove_blocks(
8241 [rename.block_id].into_iter().collect(),
8242 Some(Autoscroll::fit()),
8243 cx,
8244 );
8245 self.clear_highlights::<Rename>(cx);
8246 self.show_local_selections = true;
8247
8248 if moving_cursor {
8249 let rename_editor = rename.editor.read(cx);
8250 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8251
8252 // Update the selection to match the position of the selection inside
8253 // the rename editor.
8254 let snapshot = self.buffer.read(cx).read(cx);
8255 let rename_range = rename.range.to_offset(&snapshot);
8256 let cursor_in_editor = snapshot
8257 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8258 .min(rename_range.end);
8259 drop(snapshot);
8260
8261 self.change_selections(None, cx, |s| {
8262 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8263 });
8264 } else {
8265 self.refresh_document_highlights(cx);
8266 }
8267
8268 Some(rename)
8269 }
8270
8271 pub fn pending_rename(&self) -> Option<&RenameState> {
8272 self.pending_rename.as_ref()
8273 }
8274
8275 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8276 let project = match &self.project {
8277 Some(project) => project.clone(),
8278 None => return None,
8279 };
8280
8281 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8282 }
8283
8284 fn perform_format(
8285 &mut self,
8286 project: Model<Project>,
8287 trigger: FormatTrigger,
8288 cx: &mut ViewContext<Self>,
8289 ) -> Task<Result<()>> {
8290 let buffer = self.buffer().clone();
8291 let mut buffers = buffer.read(cx).all_buffers();
8292 if trigger == FormatTrigger::Save {
8293 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8294 }
8295
8296 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8297 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8298
8299 cx.spawn(|_, mut cx| async move {
8300 let transaction = futures::select_biased! {
8301 () = timeout => {
8302 log::warn!("timed out waiting for formatting");
8303 None
8304 }
8305 transaction = format.log_err().fuse() => transaction,
8306 };
8307
8308 buffer
8309 .update(&mut cx, |buffer, cx| {
8310 if let Some(transaction) = transaction {
8311 if !buffer.is_singleton() {
8312 buffer.push_transaction(&transaction.0, cx);
8313 }
8314 }
8315
8316 cx.notify();
8317 })
8318 .ok();
8319
8320 Ok(())
8321 })
8322 }
8323
8324 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8325 if let Some(project) = self.project.clone() {
8326 self.buffer.update(cx, |multi_buffer, cx| {
8327 project.update(cx, |project, cx| {
8328 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8329 });
8330 })
8331 }
8332 }
8333
8334 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8335 cx.show_character_palette();
8336 }
8337
8338 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8339 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8340 let buffer = self.buffer.read(cx).snapshot(cx);
8341 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8342 let is_valid = buffer
8343 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8344 .any(|entry| {
8345 entry.diagnostic.is_primary
8346 && !entry.range.is_empty()
8347 && entry.range.start == primary_range_start
8348 && entry.diagnostic.message == active_diagnostics.primary_message
8349 });
8350
8351 if is_valid != active_diagnostics.is_valid {
8352 active_diagnostics.is_valid = is_valid;
8353 let mut new_styles = HashMap::default();
8354 for (block_id, diagnostic) in &active_diagnostics.blocks {
8355 new_styles.insert(
8356 *block_id,
8357 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8358 );
8359 }
8360 self.display_map
8361 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8362 }
8363 }
8364 }
8365
8366 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8367 self.dismiss_diagnostics(cx);
8368 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8369 let buffer = self.buffer.read(cx).snapshot(cx);
8370
8371 let mut primary_range = None;
8372 let mut primary_message = None;
8373 let mut group_end = Point::zero();
8374 let diagnostic_group = buffer
8375 .diagnostic_group::<Point>(group_id)
8376 .map(|entry| {
8377 if entry.range.end > group_end {
8378 group_end = entry.range.end;
8379 }
8380 if entry.diagnostic.is_primary {
8381 primary_range = Some(entry.range.clone());
8382 primary_message = Some(entry.diagnostic.message.clone());
8383 }
8384 entry
8385 })
8386 .collect::<Vec<_>>();
8387 let primary_range = primary_range?;
8388 let primary_message = primary_message?;
8389 let primary_range =
8390 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8391
8392 let blocks = display_map
8393 .insert_blocks(
8394 diagnostic_group.iter().map(|entry| {
8395 let diagnostic = entry.diagnostic.clone();
8396 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8397 BlockProperties {
8398 style: BlockStyle::Fixed,
8399 position: buffer.anchor_after(entry.range.start),
8400 height: message_height,
8401 render: diagnostic_block_renderer(diagnostic, true),
8402 disposition: BlockDisposition::Below,
8403 }
8404 }),
8405 cx,
8406 )
8407 .into_iter()
8408 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8409 .collect();
8410
8411 Some(ActiveDiagnosticGroup {
8412 primary_range,
8413 primary_message,
8414 blocks,
8415 is_valid: true,
8416 })
8417 });
8418 self.active_diagnostics.is_some()
8419 }
8420
8421 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8422 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8423 self.display_map.update(cx, |display_map, cx| {
8424 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8425 });
8426 cx.notify();
8427 }
8428 }
8429
8430 pub fn set_selections_from_remote(
8431 &mut self,
8432 selections: Vec<Selection<Anchor>>,
8433 pending_selection: Option<Selection<Anchor>>,
8434 cx: &mut ViewContext<Self>,
8435 ) {
8436 let old_cursor_position = self.selections.newest_anchor().head();
8437 self.selections.change_with(cx, |s| {
8438 s.select_anchors(selections);
8439 if let Some(pending_selection) = pending_selection {
8440 s.set_pending(pending_selection, SelectMode::Character);
8441 } else {
8442 s.clear_pending();
8443 }
8444 });
8445 self.selections_did_change(false, &old_cursor_position, cx);
8446 }
8447
8448 fn push_to_selection_history(&mut self) {
8449 self.selection_history.push(SelectionHistoryEntry {
8450 selections: self.selections.disjoint_anchors(),
8451 select_next_state: self.select_next_state.clone(),
8452 select_prev_state: self.select_prev_state.clone(),
8453 add_selections_state: self.add_selections_state.clone(),
8454 });
8455 }
8456
8457 pub fn transact(
8458 &mut self,
8459 cx: &mut ViewContext<Self>,
8460 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8461 ) -> Option<TransactionId> {
8462 self.start_transaction_at(Instant::now(), cx);
8463 update(self, cx);
8464 self.end_transaction_at(Instant::now(), cx)
8465 }
8466
8467 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8468 self.end_selection(cx);
8469 if let Some(tx_id) = self
8470 .buffer
8471 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8472 {
8473 self.selection_history
8474 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8475 cx.emit(EditorEvent::TransactionBegun {
8476 transaction_id: tx_id,
8477 })
8478 }
8479 }
8480
8481 fn end_transaction_at(
8482 &mut self,
8483 now: Instant,
8484 cx: &mut ViewContext<Self>,
8485 ) -> Option<TransactionId> {
8486 if let Some(tx_id) = self
8487 .buffer
8488 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8489 {
8490 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8491 *end_selections = Some(self.selections.disjoint_anchors());
8492 } else {
8493 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8494 }
8495
8496 cx.emit(EditorEvent::Edited);
8497 Some(tx_id)
8498 } else {
8499 None
8500 }
8501 }
8502
8503 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8504 let mut fold_ranges = Vec::new();
8505
8506 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8507
8508 let selections = self.selections.all_adjusted(cx);
8509 for selection in selections {
8510 let range = selection.range().sorted();
8511 let buffer_start_row = range.start.row;
8512
8513 for row in (0..=range.end.row).rev() {
8514 let fold_range = display_map.foldable_range(row);
8515
8516 if let Some(fold_range) = fold_range {
8517 if fold_range.end.row >= buffer_start_row {
8518 fold_ranges.push(fold_range);
8519 if row <= range.start.row {
8520 break;
8521 }
8522 }
8523 }
8524 }
8525 }
8526
8527 self.fold_ranges(fold_ranges, true, cx);
8528 }
8529
8530 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8531 let buffer_row = fold_at.buffer_row;
8532 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8533
8534 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8535 let autoscroll = self
8536 .selections
8537 .all::<Point>(cx)
8538 .iter()
8539 .any(|selection| fold_range.overlaps(&selection.range()));
8540
8541 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8542 }
8543 }
8544
8545 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8546 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8547 let buffer = &display_map.buffer_snapshot;
8548 let selections = self.selections.all::<Point>(cx);
8549 let ranges = selections
8550 .iter()
8551 .map(|s| {
8552 let range = s.display_range(&display_map).sorted();
8553 let mut start = range.start.to_point(&display_map);
8554 let mut end = range.end.to_point(&display_map);
8555 start.column = 0;
8556 end.column = buffer.line_len(end.row);
8557 start..end
8558 })
8559 .collect::<Vec<_>>();
8560
8561 self.unfold_ranges(ranges, true, true, cx);
8562 }
8563
8564 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8565 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8566
8567 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8568 ..Point::new(
8569 unfold_at.buffer_row,
8570 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8571 );
8572
8573 let autoscroll = self
8574 .selections
8575 .all::<Point>(cx)
8576 .iter()
8577 .any(|selection| selection.range().overlaps(&intersection_range));
8578
8579 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8580 }
8581
8582 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8583 let selections = self.selections.all::<Point>(cx);
8584 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8585 let line_mode = self.selections.line_mode;
8586 let ranges = selections.into_iter().map(|s| {
8587 if line_mode {
8588 let start = Point::new(s.start.row, 0);
8589 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8590 start..end
8591 } else {
8592 s.start..s.end
8593 }
8594 });
8595 self.fold_ranges(ranges, true, cx);
8596 }
8597
8598 pub fn fold_ranges<T: ToOffset + Clone>(
8599 &mut self,
8600 ranges: impl IntoIterator<Item = Range<T>>,
8601 auto_scroll: bool,
8602 cx: &mut ViewContext<Self>,
8603 ) {
8604 let mut ranges = ranges.into_iter().peekable();
8605 if ranges.peek().is_some() {
8606 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8607
8608 if auto_scroll {
8609 self.request_autoscroll(Autoscroll::fit(), cx);
8610 }
8611
8612 cx.notify();
8613 }
8614 }
8615
8616 pub fn unfold_ranges<T: ToOffset + Clone>(
8617 &mut self,
8618 ranges: impl IntoIterator<Item = Range<T>>,
8619 inclusive: bool,
8620 auto_scroll: bool,
8621 cx: &mut ViewContext<Self>,
8622 ) {
8623 let mut ranges = ranges.into_iter().peekable();
8624 if ranges.peek().is_some() {
8625 self.display_map
8626 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8627 if auto_scroll {
8628 self.request_autoscroll(Autoscroll::fit(), cx);
8629 }
8630
8631 cx.notify();
8632 }
8633 }
8634
8635 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8636 if hovered != self.gutter_hovered {
8637 self.gutter_hovered = hovered;
8638 cx.notify();
8639 }
8640 }
8641
8642 pub fn insert_blocks(
8643 &mut self,
8644 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8645 autoscroll: Option<Autoscroll>,
8646 cx: &mut ViewContext<Self>,
8647 ) -> Vec<BlockId> {
8648 let blocks = self
8649 .display_map
8650 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8651 if let Some(autoscroll) = autoscroll {
8652 self.request_autoscroll(autoscroll, cx);
8653 }
8654 blocks
8655 }
8656
8657 pub fn replace_blocks(
8658 &mut self,
8659 blocks: HashMap<BlockId, RenderBlock>,
8660 autoscroll: Option<Autoscroll>,
8661 cx: &mut ViewContext<Self>,
8662 ) {
8663 self.display_map
8664 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8665 if let Some(autoscroll) = autoscroll {
8666 self.request_autoscroll(autoscroll, cx);
8667 }
8668 }
8669
8670 pub fn remove_blocks(
8671 &mut self,
8672 block_ids: HashSet<BlockId>,
8673 autoscroll: Option<Autoscroll>,
8674 cx: &mut ViewContext<Self>,
8675 ) {
8676 self.display_map.update(cx, |display_map, cx| {
8677 display_map.remove_blocks(block_ids, cx)
8678 });
8679 if let Some(autoscroll) = autoscroll {
8680 self.request_autoscroll(autoscroll, cx);
8681 }
8682 }
8683
8684 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8685 self.display_map
8686 .update(cx, |map, cx| map.snapshot(cx))
8687 .longest_row()
8688 }
8689
8690 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8691 self.display_map
8692 .update(cx, |map, cx| map.snapshot(cx))
8693 .max_point()
8694 }
8695
8696 pub fn text(&self, cx: &AppContext) -> String {
8697 self.buffer.read(cx).read(cx).text()
8698 }
8699
8700 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8701 let text = self.text(cx);
8702 let text = text.trim();
8703
8704 if text.is_empty() {
8705 return None;
8706 }
8707
8708 Some(text.to_string())
8709 }
8710
8711 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8712 self.transact(cx, |this, cx| {
8713 this.buffer
8714 .read(cx)
8715 .as_singleton()
8716 .expect("you can only call set_text on editors for singleton buffers")
8717 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8718 });
8719 }
8720
8721 pub fn display_text(&self, cx: &mut AppContext) -> String {
8722 self.display_map
8723 .update(cx, |map, cx| map.snapshot(cx))
8724 .text()
8725 }
8726
8727 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8728 let mut wrap_guides = smallvec::smallvec![];
8729
8730 if self.show_wrap_guides == Some(false) {
8731 return wrap_guides;
8732 }
8733
8734 let settings = self.buffer.read(cx).settings_at(0, cx);
8735 if settings.show_wrap_guides {
8736 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8737 wrap_guides.push((soft_wrap as usize, true));
8738 }
8739 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8740 }
8741
8742 wrap_guides
8743 }
8744
8745 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8746 let settings = self.buffer.read(cx).settings_at(0, cx);
8747 let mode = self
8748 .soft_wrap_mode_override
8749 .unwrap_or_else(|| settings.soft_wrap);
8750 match mode {
8751 language_settings::SoftWrap::None => SoftWrap::None,
8752 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8753 language_settings::SoftWrap::PreferredLineLength => {
8754 SoftWrap::Column(settings.preferred_line_length)
8755 }
8756 }
8757 }
8758
8759 pub fn set_soft_wrap_mode(
8760 &mut self,
8761 mode: language_settings::SoftWrap,
8762 cx: &mut ViewContext<Self>,
8763 ) {
8764 self.soft_wrap_mode_override = Some(mode);
8765 cx.notify();
8766 }
8767
8768 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8769 let rem_size = cx.rem_size();
8770 self.display_map.update(cx, |map, cx| {
8771 map.set_font(
8772 style.text.font(),
8773 style.text.font_size.to_pixels(rem_size),
8774 cx,
8775 )
8776 });
8777 self.style = Some(style);
8778 }
8779
8780 #[cfg(any(test, feature = "test-support"))]
8781 pub fn style(&self) -> Option<&EditorStyle> {
8782 self.style.as_ref()
8783 }
8784
8785 // Called by the element. This method is not designed to be called outside of the editor
8786 // element's layout code because it does not notify when rewrapping is computed synchronously.
8787 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8788 self.display_map
8789 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8790 }
8791
8792 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8793 if self.soft_wrap_mode_override.is_some() {
8794 self.soft_wrap_mode_override.take();
8795 } else {
8796 let soft_wrap = match self.soft_wrap_mode(cx) {
8797 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8798 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8799 };
8800 self.soft_wrap_mode_override = Some(soft_wrap);
8801 }
8802 cx.notify();
8803 }
8804
8805 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
8806 let mut editor_settings = EditorSettings::get_global(cx).clone();
8807 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
8808 EditorSettings::override_global(editor_settings, cx);
8809 }
8810
8811 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8812 self.show_gutter = show_gutter;
8813 cx.notify();
8814 }
8815
8816 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8817 self.show_wrap_guides = Some(show_gutter);
8818 cx.notify();
8819 }
8820
8821 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8822 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8823 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8824 cx.reveal_path(&file.abs_path(cx));
8825 }
8826 }
8827 }
8828
8829 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8830 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8831 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8832 if let Some(path) = file.abs_path(cx).to_str() {
8833 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8834 }
8835 }
8836 }
8837 }
8838
8839 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8840 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8841 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8842 if let Some(path) = file.path().to_str() {
8843 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8844 }
8845 }
8846 }
8847 }
8848
8849 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
8850 if !self.show_git_blame {
8851 if let Err(error) = self.show_git_blame_internal(cx) {
8852 log::error!("failed to toggle on 'git blame': {}", error);
8853 return;
8854 }
8855 self.show_git_blame = true
8856 } else {
8857 self.blame_subscription.take();
8858 self.blame.take();
8859 self.show_git_blame = false
8860 }
8861
8862 cx.notify();
8863 }
8864
8865 fn show_git_blame_internal(&mut self, cx: &mut ViewContext<Self>) -> Result<()> {
8866 if let Some(project) = self.project.as_ref() {
8867 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
8868 anyhow::bail!("git blame not available in multi buffers")
8869 };
8870
8871 let project = project.clone();
8872 let blame = cx.new_model(|cx| GitBlame::new(buffer, project, cx));
8873 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
8874 self.blame = Some(blame);
8875 }
8876
8877 Ok(())
8878 }
8879
8880 pub fn blame(&self) -> Option<&Model<GitBlame>> {
8881 self.blame.as_ref()
8882 }
8883
8884 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8885 let (path, repo) = maybe!({
8886 let project_handle = self.project.as_ref()?.clone();
8887 let project = project_handle.read(cx);
8888 let buffer = self.buffer().read(cx).as_singleton()?;
8889 let path = buffer
8890 .read(cx)
8891 .file()?
8892 .as_local()?
8893 .path()
8894 .to_str()?
8895 .to_string();
8896 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
8897 Some((path, repo))
8898 })
8899 .ok_or_else(|| anyhow!("unable to open git repository"))?;
8900
8901 const REMOTE_NAME: &str = "origin";
8902 let origin_url = repo
8903 .lock()
8904 .remote_url(REMOTE_NAME)
8905 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8906 let sha = repo
8907 .lock()
8908 .head_sha()
8909 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8910 let selections = self.selections.all::<Point>(cx);
8911 let selection = selections.iter().peekable().next();
8912
8913 build_permalink(BuildPermalinkParams {
8914 remote_url: &origin_url,
8915 sha: &sha,
8916 path: &path,
8917 selection: selection.map(|selection| {
8918 let range = selection.range();
8919 let start = range.start.row;
8920 let end = range.end.row;
8921 start..end
8922 }),
8923 })
8924 }
8925
8926 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8927 let permalink = self.get_permalink_to_line(cx);
8928
8929 match permalink {
8930 Ok(permalink) => {
8931 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8932 }
8933 Err(err) => {
8934 let message = format!("Failed to copy permalink: {err}");
8935
8936 Err::<(), anyhow::Error>(err).log_err();
8937
8938 if let Some(workspace) = self.workspace() {
8939 workspace.update(cx, |workspace, cx| {
8940 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8941 })
8942 }
8943 }
8944 }
8945 }
8946
8947 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8948 let permalink = self.get_permalink_to_line(cx);
8949
8950 match permalink {
8951 Ok(permalink) => {
8952 cx.open_url(permalink.as_ref());
8953 }
8954 Err(err) => {
8955 let message = format!("Failed to open permalink: {err}");
8956
8957 Err::<(), anyhow::Error>(err).log_err();
8958
8959 if let Some(workspace) = self.workspace() {
8960 workspace.update(cx, |workspace, cx| {
8961 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8962 })
8963 }
8964 }
8965 }
8966 }
8967
8968 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
8969 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
8970 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
8971 pub fn highlight_rows<T: 'static>(
8972 &mut self,
8973 rows: Range<Anchor>,
8974 color: Option<Hsla>,
8975 cx: &mut ViewContext<Self>,
8976 ) {
8977 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
8978 match self.highlighted_rows.entry(TypeId::of::<T>()) {
8979 hash_map::Entry::Occupied(o) => {
8980 let row_highlights = o.into_mut();
8981 let existing_highlight_index =
8982 row_highlights.binary_search_by(|(_, highlight_range, _)| {
8983 highlight_range
8984 .start
8985 .cmp(&rows.start, &multi_buffer_snapshot)
8986 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
8987 });
8988 match color {
8989 Some(color) => {
8990 let insert_index = match existing_highlight_index {
8991 Ok(i) => i,
8992 Err(i) => i,
8993 };
8994 row_highlights.insert(
8995 insert_index,
8996 (post_inc(&mut self.highlight_order), rows, color),
8997 );
8998 }
8999 None => {
9000 if let Ok(i) = existing_highlight_index {
9001 row_highlights.remove(i);
9002 }
9003 }
9004 }
9005 }
9006 hash_map::Entry::Vacant(v) => {
9007 if let Some(color) = color {
9008 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9009 }
9010 }
9011 }
9012 }
9013
9014 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9015 pub fn clear_row_highlights<T: 'static>(&mut self) {
9016 self.highlighted_rows.remove(&TypeId::of::<T>());
9017 }
9018
9019 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9020 pub fn highlighted_rows<T: 'static>(
9021 &self,
9022 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
9023 Some(
9024 self.highlighted_rows
9025 .get(&TypeId::of::<T>())?
9026 .iter()
9027 .map(|(_, range, color)| (range, color)),
9028 )
9029 }
9030
9031 // Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9032 // Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9033 pub fn highlighted_display_rows(&mut self, cx: &mut WindowContext) -> BTreeMap<u32, Hsla> {
9034 let snapshot = self.snapshot(cx);
9035 let mut used_highlight_orders = HashMap::default();
9036 self.highlighted_rows
9037 .iter()
9038 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9039 .fold(
9040 BTreeMap::<u32, Hsla>::new(),
9041 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9042 let start_row = anchor_range.start.to_display_point(&snapshot).row();
9043 let end_row = anchor_range.end.to_display_point(&snapshot).row();
9044 for row in start_row..=end_row {
9045 let used_index =
9046 used_highlight_orders.entry(row).or_insert(*highlight_order);
9047 if highlight_order >= used_index {
9048 *used_index = *highlight_order;
9049 unique_rows.insert(row, *hsla);
9050 }
9051 }
9052 unique_rows
9053 },
9054 )
9055 }
9056
9057 pub fn highlight_background<T: 'static>(
9058 &mut self,
9059 ranges: Vec<Range<Anchor>>,
9060 color_fetcher: fn(&ThemeColors) -> Hsla,
9061 cx: &mut ViewContext<Self>,
9062 ) {
9063 let snapshot = self.snapshot(cx);
9064 // this is to try and catch a panic sooner
9065 for range in &ranges {
9066 snapshot
9067 .buffer_snapshot
9068 .summary_for_anchor::<usize>(&range.start);
9069 snapshot
9070 .buffer_snapshot
9071 .summary_for_anchor::<usize>(&range.end);
9072 }
9073
9074 self.background_highlights
9075 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
9076 cx.notify();
9077 }
9078
9079 pub fn clear_background_highlights<T: 'static>(
9080 &mut self,
9081 _cx: &mut ViewContext<Self>,
9082 ) -> Option<BackgroundHighlight> {
9083 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
9084 text_highlights
9085 }
9086
9087 #[cfg(feature = "test-support")]
9088 pub fn all_text_background_highlights(
9089 &mut self,
9090 cx: &mut ViewContext<Self>,
9091 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9092 let snapshot = self.snapshot(cx);
9093 let buffer = &snapshot.buffer_snapshot;
9094 let start = buffer.anchor_before(0);
9095 let end = buffer.anchor_after(buffer.len());
9096 let theme = cx.theme().colors();
9097 self.background_highlights_in_range(start..end, &snapshot, theme)
9098 }
9099
9100 fn document_highlights_for_position<'a>(
9101 &'a self,
9102 position: Anchor,
9103 buffer: &'a MultiBufferSnapshot,
9104 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9105 let read_highlights = self
9106 .background_highlights
9107 .get(&TypeId::of::<DocumentHighlightRead>())
9108 .map(|h| &h.1);
9109 let write_highlights = self
9110 .background_highlights
9111 .get(&TypeId::of::<DocumentHighlightWrite>())
9112 .map(|h| &h.1);
9113 let left_position = position.bias_left(buffer);
9114 let right_position = position.bias_right(buffer);
9115 read_highlights
9116 .into_iter()
9117 .chain(write_highlights)
9118 .flat_map(move |ranges| {
9119 let start_ix = match ranges.binary_search_by(|probe| {
9120 let cmp = probe.end.cmp(&left_position, buffer);
9121 if cmp.is_ge() {
9122 Ordering::Greater
9123 } else {
9124 Ordering::Less
9125 }
9126 }) {
9127 Ok(i) | Err(i) => i,
9128 };
9129
9130 ranges[start_ix..]
9131 .iter()
9132 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9133 })
9134 }
9135
9136 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9137 self.background_highlights
9138 .get(&TypeId::of::<T>())
9139 .map_or(false, |(_, highlights)| !highlights.is_empty())
9140 }
9141
9142 pub fn background_highlights_in_range(
9143 &self,
9144 search_range: Range<Anchor>,
9145 display_snapshot: &DisplaySnapshot,
9146 theme: &ThemeColors,
9147 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9148 let mut results = Vec::new();
9149 for (color_fetcher, ranges) in self.background_highlights.values() {
9150 let color = color_fetcher(theme);
9151 let start_ix = match ranges.binary_search_by(|probe| {
9152 let cmp = probe
9153 .end
9154 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9155 if cmp.is_gt() {
9156 Ordering::Greater
9157 } else {
9158 Ordering::Less
9159 }
9160 }) {
9161 Ok(i) | Err(i) => i,
9162 };
9163 for range in &ranges[start_ix..] {
9164 if range
9165 .start
9166 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9167 .is_ge()
9168 {
9169 break;
9170 }
9171
9172 let start = range.start.to_display_point(&display_snapshot);
9173 let end = range.end.to_display_point(&display_snapshot);
9174 results.push((start..end, color))
9175 }
9176 }
9177 results
9178 }
9179
9180 pub fn background_highlight_row_ranges<T: 'static>(
9181 &self,
9182 search_range: Range<Anchor>,
9183 display_snapshot: &DisplaySnapshot,
9184 count: usize,
9185 ) -> Vec<RangeInclusive<DisplayPoint>> {
9186 let mut results = Vec::new();
9187 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9188 return vec![];
9189 };
9190
9191 let start_ix = match ranges.binary_search_by(|probe| {
9192 let cmp = probe
9193 .end
9194 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9195 if cmp.is_gt() {
9196 Ordering::Greater
9197 } else {
9198 Ordering::Less
9199 }
9200 }) {
9201 Ok(i) | Err(i) => i,
9202 };
9203 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9204 if let (Some(start_display), Some(end_display)) = (start, end) {
9205 results.push(
9206 start_display.to_display_point(display_snapshot)
9207 ..=end_display.to_display_point(display_snapshot),
9208 );
9209 }
9210 };
9211 let mut start_row: Option<Point> = None;
9212 let mut end_row: Option<Point> = None;
9213 if ranges.len() > count {
9214 return Vec::new();
9215 }
9216 for range in &ranges[start_ix..] {
9217 if range
9218 .start
9219 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9220 .is_ge()
9221 {
9222 break;
9223 }
9224 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9225 if let Some(current_row) = &end_row {
9226 if end.row == current_row.row {
9227 continue;
9228 }
9229 }
9230 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9231 if start_row.is_none() {
9232 assert_eq!(end_row, None);
9233 start_row = Some(start);
9234 end_row = Some(end);
9235 continue;
9236 }
9237 if let Some(current_end) = end_row.as_mut() {
9238 if start.row > current_end.row + 1 {
9239 push_region(start_row, end_row);
9240 start_row = Some(start);
9241 end_row = Some(end);
9242 } else {
9243 // Merge two hunks.
9244 *current_end = end;
9245 }
9246 } else {
9247 unreachable!();
9248 }
9249 }
9250 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9251 push_region(start_row, end_row);
9252 results
9253 }
9254
9255 /// Get the text ranges corresponding to the redaction query
9256 pub fn redacted_ranges(
9257 &self,
9258 search_range: Range<Anchor>,
9259 display_snapshot: &DisplaySnapshot,
9260 cx: &WindowContext,
9261 ) -> Vec<Range<DisplayPoint>> {
9262 display_snapshot
9263 .buffer_snapshot
9264 .redacted_ranges(search_range, |file| {
9265 if let Some(file) = file {
9266 file.is_private()
9267 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
9268 } else {
9269 false
9270 }
9271 })
9272 .map(|range| {
9273 range.start.to_display_point(display_snapshot)
9274 ..range.end.to_display_point(display_snapshot)
9275 })
9276 .collect()
9277 }
9278
9279 pub fn highlight_text<T: 'static>(
9280 &mut self,
9281 ranges: Vec<Range<Anchor>>,
9282 style: HighlightStyle,
9283 cx: &mut ViewContext<Self>,
9284 ) {
9285 self.display_map.update(cx, |map, _| {
9286 map.highlight_text(TypeId::of::<T>(), ranges, style)
9287 });
9288 cx.notify();
9289 }
9290
9291 pub(crate) fn highlight_inlays<T: 'static>(
9292 &mut self,
9293 highlights: Vec<InlayHighlight>,
9294 style: HighlightStyle,
9295 cx: &mut ViewContext<Self>,
9296 ) {
9297 self.display_map.update(cx, |map, _| {
9298 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9299 });
9300 cx.notify();
9301 }
9302
9303 pub fn text_highlights<'a, T: 'static>(
9304 &'a self,
9305 cx: &'a AppContext,
9306 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9307 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9308 }
9309
9310 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9311 let cleared = self
9312 .display_map
9313 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9314 if cleared {
9315 cx.notify();
9316 }
9317 }
9318
9319 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9320 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9321 && self.focus_handle.is_focused(cx)
9322 }
9323
9324 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9325 cx.notify();
9326 }
9327
9328 fn on_buffer_event(
9329 &mut self,
9330 multibuffer: Model<MultiBuffer>,
9331 event: &multi_buffer::Event,
9332 cx: &mut ViewContext<Self>,
9333 ) {
9334 match event {
9335 multi_buffer::Event::Edited {
9336 singleton_buffer_edited,
9337 } => {
9338 self.refresh_active_diagnostics(cx);
9339 self.refresh_code_actions(cx);
9340 if self.has_active_inline_completion(cx) {
9341 self.update_visible_inline_completion(cx);
9342 }
9343 cx.emit(EditorEvent::BufferEdited);
9344 cx.emit(SearchEvent::MatchesInvalidated);
9345
9346 if *singleton_buffer_edited {
9347 if let Some(project) = &self.project {
9348 let project = project.read(cx);
9349 let languages_affected = multibuffer
9350 .read(cx)
9351 .all_buffers()
9352 .into_iter()
9353 .filter_map(|buffer| {
9354 let buffer = buffer.read(cx);
9355 let language = buffer.language()?;
9356 if project.is_local()
9357 && project.language_servers_for_buffer(buffer, cx).count() == 0
9358 {
9359 None
9360 } else {
9361 Some(language)
9362 }
9363 })
9364 .cloned()
9365 .collect::<HashSet<_>>();
9366 if !languages_affected.is_empty() {
9367 self.refresh_inlay_hints(
9368 InlayHintRefreshReason::BufferEdited(languages_affected),
9369 cx,
9370 );
9371 }
9372 }
9373 }
9374
9375 let Some(project) = &self.project else { return };
9376 let telemetry = project.read(cx).client().telemetry().clone();
9377 telemetry.log_edit_event("editor");
9378 }
9379 multi_buffer::Event::ExcerptsAdded {
9380 buffer,
9381 predecessor,
9382 excerpts,
9383 } => {
9384 cx.emit(EditorEvent::ExcerptsAdded {
9385 buffer: buffer.clone(),
9386 predecessor: *predecessor,
9387 excerpts: excerpts.clone(),
9388 });
9389 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9390 }
9391 multi_buffer::Event::ExcerptsRemoved { ids } => {
9392 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9393 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9394 }
9395 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9396 multi_buffer::Event::LanguageChanged => {
9397 cx.emit(EditorEvent::Reparsed);
9398 cx.notify();
9399 }
9400 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9401 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9402 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9403 cx.emit(EditorEvent::TitleChanged)
9404 }
9405 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
9406 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9407 multi_buffer::Event::DiagnosticsUpdated => {
9408 self.refresh_active_diagnostics(cx);
9409 }
9410 _ => {}
9411 };
9412 }
9413
9414 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9415 cx.notify();
9416 }
9417
9418 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9419 self.refresh_inline_completion(true, cx);
9420 self.refresh_inlay_hints(
9421 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9422 self.selections.newest_anchor().head(),
9423 &self.buffer.read(cx).snapshot(cx),
9424 cx,
9425 )),
9426 cx,
9427 );
9428 let editor_settings = EditorSettings::get_global(cx);
9429 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9430 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9431 cx.notify();
9432 }
9433
9434 pub fn set_searchable(&mut self, searchable: bool) {
9435 self.searchable = searchable;
9436 }
9437
9438 pub fn searchable(&self) -> bool {
9439 self.searchable
9440 }
9441
9442 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9443 self.open_excerpts_common(true, cx)
9444 }
9445
9446 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9447 self.open_excerpts_common(false, cx)
9448 }
9449
9450 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9451 let buffer = self.buffer.read(cx);
9452 if buffer.is_singleton() {
9453 cx.propagate();
9454 return;
9455 }
9456
9457 let Some(workspace) = self.workspace() else {
9458 cx.propagate();
9459 return;
9460 };
9461
9462 let mut new_selections_by_buffer = HashMap::default();
9463 for selection in self.selections.all::<usize>(cx) {
9464 for (buffer, mut range, _) in
9465 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9466 {
9467 if selection.reversed {
9468 mem::swap(&mut range.start, &mut range.end);
9469 }
9470 new_selections_by_buffer
9471 .entry(buffer)
9472 .or_insert(Vec::new())
9473 .push(range)
9474 }
9475 }
9476
9477 // We defer the pane interaction because we ourselves are a workspace item
9478 // and activating a new item causes the pane to call a method on us reentrantly,
9479 // which panics if we're on the stack.
9480 cx.window_context().defer(move |cx| {
9481 workspace.update(cx, |workspace, cx| {
9482 let pane = if split {
9483 workspace.adjacent_pane(cx)
9484 } else {
9485 workspace.active_pane().clone()
9486 };
9487
9488 for (buffer, ranges) in new_selections_by_buffer {
9489 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9490 editor.update(cx, |editor, cx| {
9491 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9492 s.select_ranges(ranges);
9493 });
9494 });
9495 }
9496 })
9497 });
9498 }
9499
9500 fn jump(
9501 &mut self,
9502 path: ProjectPath,
9503 position: Point,
9504 anchor: language::Anchor,
9505 offset_from_top: u32,
9506 cx: &mut ViewContext<Self>,
9507 ) {
9508 let workspace = self.workspace();
9509 cx.spawn(|_, mut cx| async move {
9510 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9511 let editor = workspace.update(&mut cx, |workspace, cx| {
9512 workspace.open_path(path, None, true, cx)
9513 })?;
9514 let editor = editor
9515 .await?
9516 .downcast::<Editor>()
9517 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9518 .downgrade();
9519 editor.update(&mut cx, |editor, cx| {
9520 let buffer = editor
9521 .buffer()
9522 .read(cx)
9523 .as_singleton()
9524 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9525 let buffer = buffer.read(cx);
9526 let cursor = if buffer.can_resolve(&anchor) {
9527 language::ToPoint::to_point(&anchor, buffer)
9528 } else {
9529 buffer.clip_point(position, Bias::Left)
9530 };
9531
9532 let nav_history = editor.nav_history.take();
9533 editor.change_selections(
9534 Some(Autoscroll::top_relative(offset_from_top as usize)),
9535 cx,
9536 |s| {
9537 s.select_ranges([cursor..cursor]);
9538 },
9539 );
9540 editor.nav_history = nav_history;
9541
9542 anyhow::Ok(())
9543 })??;
9544
9545 anyhow::Ok(())
9546 })
9547 .detach_and_log_err(cx);
9548 }
9549
9550 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9551 let snapshot = self.buffer.read(cx).read(cx);
9552 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9553 Some(
9554 ranges
9555 .iter()
9556 .map(move |range| {
9557 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9558 })
9559 .collect(),
9560 )
9561 }
9562
9563 fn selection_replacement_ranges(
9564 &self,
9565 range: Range<OffsetUtf16>,
9566 cx: &AppContext,
9567 ) -> Vec<Range<OffsetUtf16>> {
9568 let selections = self.selections.all::<OffsetUtf16>(cx);
9569 let newest_selection = selections
9570 .iter()
9571 .max_by_key(|selection| selection.id)
9572 .unwrap();
9573 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9574 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9575 let snapshot = self.buffer.read(cx).read(cx);
9576 selections
9577 .into_iter()
9578 .map(|mut selection| {
9579 selection.start.0 =
9580 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9581 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9582 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9583 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9584 })
9585 .collect()
9586 }
9587
9588 fn report_editor_event(
9589 &self,
9590 operation: &'static str,
9591 file_extension: Option<String>,
9592 cx: &AppContext,
9593 ) {
9594 if cfg!(any(test, feature = "test-support")) {
9595 return;
9596 }
9597
9598 let Some(project) = &self.project else { return };
9599
9600 // If None, we are in a file without an extension
9601 let file = self
9602 .buffer
9603 .read(cx)
9604 .as_singleton()
9605 .and_then(|b| b.read(cx).file());
9606 let file_extension = file_extension.or(file
9607 .as_ref()
9608 .and_then(|file| Path::new(file.file_name(cx)).extension())
9609 .and_then(|e| e.to_str())
9610 .map(|a| a.to_string()));
9611
9612 let vim_mode = cx
9613 .global::<SettingsStore>()
9614 .raw_user_settings()
9615 .get("vim_mode")
9616 == Some(&serde_json::Value::Bool(true));
9617 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9618 let copilot_enabled_for_language = self
9619 .buffer
9620 .read(cx)
9621 .settings_at(0, cx)
9622 .show_copilot_suggestions;
9623
9624 let telemetry = project.read(cx).client().telemetry().clone();
9625 telemetry.report_editor_event(
9626 file_extension,
9627 vim_mode,
9628 operation,
9629 copilot_enabled,
9630 copilot_enabled_for_language,
9631 )
9632 }
9633
9634 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9635 /// with each line being an array of {text, highlight} objects.
9636 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9637 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9638 return;
9639 };
9640
9641 #[derive(Serialize)]
9642 struct Chunk<'a> {
9643 text: String,
9644 highlight: Option<&'a str>,
9645 }
9646
9647 let snapshot = buffer.read(cx).snapshot();
9648 let range = self
9649 .selected_text_range(cx)
9650 .and_then(|selected_range| {
9651 if selected_range.is_empty() {
9652 None
9653 } else {
9654 Some(selected_range)
9655 }
9656 })
9657 .unwrap_or_else(|| 0..snapshot.len());
9658
9659 let chunks = snapshot.chunks(range, true);
9660 let mut lines = Vec::new();
9661 let mut line: VecDeque<Chunk> = VecDeque::new();
9662
9663 let Some(style) = self.style.as_ref() else {
9664 return;
9665 };
9666
9667 for chunk in chunks {
9668 let highlight = chunk
9669 .syntax_highlight_id
9670 .and_then(|id| id.name(&style.syntax));
9671 let mut chunk_lines = chunk.text.split('\n').peekable();
9672 while let Some(text) = chunk_lines.next() {
9673 let mut merged_with_last_token = false;
9674 if let Some(last_token) = line.back_mut() {
9675 if last_token.highlight == highlight {
9676 last_token.text.push_str(text);
9677 merged_with_last_token = true;
9678 }
9679 }
9680
9681 if !merged_with_last_token {
9682 line.push_back(Chunk {
9683 text: text.into(),
9684 highlight,
9685 });
9686 }
9687
9688 if chunk_lines.peek().is_some() {
9689 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9690 line.pop_front();
9691 }
9692 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9693 line.pop_back();
9694 }
9695
9696 lines.push(mem::take(&mut line));
9697 }
9698 }
9699 }
9700
9701 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9702 return;
9703 };
9704 cx.write_to_clipboard(ClipboardItem::new(lines));
9705 }
9706
9707 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9708 &self.inlay_hint_cache
9709 }
9710
9711 pub fn replay_insert_event(
9712 &mut self,
9713 text: &str,
9714 relative_utf16_range: Option<Range<isize>>,
9715 cx: &mut ViewContext<Self>,
9716 ) {
9717 if !self.input_enabled {
9718 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9719 return;
9720 }
9721 if let Some(relative_utf16_range) = relative_utf16_range {
9722 let selections = self.selections.all::<OffsetUtf16>(cx);
9723 self.change_selections(None, cx, |s| {
9724 let new_ranges = selections.into_iter().map(|range| {
9725 let start = OffsetUtf16(
9726 range
9727 .head()
9728 .0
9729 .saturating_add_signed(relative_utf16_range.start),
9730 );
9731 let end = OffsetUtf16(
9732 range
9733 .head()
9734 .0
9735 .saturating_add_signed(relative_utf16_range.end),
9736 );
9737 start..end
9738 });
9739 s.select_ranges(new_ranges);
9740 });
9741 }
9742
9743 self.handle_input(text, cx);
9744 }
9745
9746 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9747 let Some(project) = self.project.as_ref() else {
9748 return false;
9749 };
9750 let project = project.read(cx);
9751
9752 let mut supports = false;
9753 self.buffer().read(cx).for_each_buffer(|buffer| {
9754 if !supports {
9755 supports = project
9756 .language_servers_for_buffer(buffer.read(cx), cx)
9757 .any(
9758 |(_, server)| match server.capabilities().inlay_hint_provider {
9759 Some(lsp::OneOf::Left(enabled)) => enabled,
9760 Some(lsp::OneOf::Right(_)) => true,
9761 None => false,
9762 },
9763 )
9764 }
9765 });
9766 supports
9767 }
9768
9769 pub fn focus(&self, cx: &mut WindowContext) {
9770 cx.focus(&self.focus_handle)
9771 }
9772
9773 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9774 self.focus_handle.is_focused(cx)
9775 }
9776
9777 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9778 cx.emit(EditorEvent::Focused);
9779
9780 if let Some(rename) = self.pending_rename.as_ref() {
9781 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9782 cx.focus(&rename_editor_focus_handle);
9783 } else {
9784 self.blink_manager.update(cx, BlinkManager::enable);
9785 self.show_cursor_names(cx);
9786 self.buffer.update(cx, |buffer, cx| {
9787 buffer.finalize_last_transaction(cx);
9788 if self.leader_peer_id.is_none() {
9789 buffer.set_active_selections(
9790 &self.selections.disjoint_anchors(),
9791 self.selections.line_mode,
9792 self.cursor_shape,
9793 cx,
9794 );
9795 }
9796 });
9797 }
9798 }
9799
9800 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9801 self.blink_manager.update(cx, BlinkManager::disable);
9802 self.buffer
9803 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9804 self.hide_context_menu(cx);
9805 hide_hover(self, cx);
9806 cx.emit(EditorEvent::Blurred);
9807 cx.notify();
9808 }
9809
9810 pub fn register_action<A: Action>(
9811 &mut self,
9812 listener: impl Fn(&A, &mut WindowContext) + 'static,
9813 ) -> &mut Self {
9814 let listener = Arc::new(listener);
9815
9816 self.editor_actions.push(Box::new(move |cx| {
9817 let _view = cx.view().clone();
9818 let cx = cx.window_context();
9819 let listener = listener.clone();
9820 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9821 let action = action.downcast_ref().unwrap();
9822 if phase == DispatchPhase::Bubble {
9823 listener(action, cx)
9824 }
9825 })
9826 }));
9827 self
9828 }
9829}
9830
9831pub trait CollaborationHub {
9832 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9833 fn user_participant_indices<'a>(
9834 &self,
9835 cx: &'a AppContext,
9836 ) -> &'a HashMap<u64, ParticipantIndex>;
9837 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9838}
9839
9840impl CollaborationHub for Model<Project> {
9841 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9842 self.read(cx).collaborators()
9843 }
9844
9845 fn user_participant_indices<'a>(
9846 &self,
9847 cx: &'a AppContext,
9848 ) -> &'a HashMap<u64, ParticipantIndex> {
9849 self.read(cx).user_store().read(cx).participant_indices()
9850 }
9851
9852 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9853 let this = self.read(cx);
9854 let user_ids = this.collaborators().values().map(|c| c.user_id);
9855 this.user_store().read_with(cx, |user_store, cx| {
9856 user_store.participant_names(user_ids, cx)
9857 })
9858 }
9859}
9860
9861pub trait CompletionProvider {
9862 fn completions(
9863 &self,
9864 buffer: &Model<Buffer>,
9865 buffer_position: text::Anchor,
9866 cx: &mut ViewContext<Editor>,
9867 ) -> Task<Result<Vec<Completion>>>;
9868
9869 fn resolve_completions(
9870 &self,
9871 completion_indices: Vec<usize>,
9872 completions: Arc<RwLock<Box<[Completion]>>>,
9873 cx: &mut ViewContext<Editor>,
9874 ) -> Task<Result<bool>>;
9875
9876 fn apply_additional_edits_for_completion(
9877 &self,
9878 buffer: Model<Buffer>,
9879 completion: Completion,
9880 push_to_history: bool,
9881 cx: &mut ViewContext<Editor>,
9882 ) -> Task<Result<Option<language::Transaction>>>;
9883}
9884
9885impl CompletionProvider for Model<Project> {
9886 fn completions(
9887 &self,
9888 buffer: &Model<Buffer>,
9889 buffer_position: text::Anchor,
9890 cx: &mut ViewContext<Editor>,
9891 ) -> Task<Result<Vec<Completion>>> {
9892 self.update(cx, |project, cx| {
9893 project.completions(&buffer, buffer_position, cx)
9894 })
9895 }
9896
9897 fn resolve_completions(
9898 &self,
9899 completion_indices: Vec<usize>,
9900 completions: Arc<RwLock<Box<[Completion]>>>,
9901 cx: &mut ViewContext<Editor>,
9902 ) -> Task<Result<bool>> {
9903 self.update(cx, |project, cx| {
9904 project.resolve_completions(completion_indices, completions, cx)
9905 })
9906 }
9907
9908 fn apply_additional_edits_for_completion(
9909 &self,
9910 buffer: Model<Buffer>,
9911 completion: Completion,
9912 push_to_history: bool,
9913 cx: &mut ViewContext<Editor>,
9914 ) -> Task<Result<Option<language::Transaction>>> {
9915 self.update(cx, |project, cx| {
9916 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9917 })
9918 }
9919}
9920
9921fn inlay_hint_settings(
9922 location: Anchor,
9923 snapshot: &MultiBufferSnapshot,
9924 cx: &mut ViewContext<'_, Editor>,
9925) -> InlayHintSettings {
9926 let file = snapshot.file_at(location);
9927 let language = snapshot.language_at(location);
9928 let settings = all_language_settings(file, cx);
9929 settings
9930 .language(language.map(|l| l.name()).as_deref())
9931 .inlay_hints
9932}
9933
9934fn consume_contiguous_rows(
9935 contiguous_row_selections: &mut Vec<Selection<Point>>,
9936 selection: &Selection<Point>,
9937 display_map: &DisplaySnapshot,
9938 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9939) -> (u32, u32) {
9940 contiguous_row_selections.push(selection.clone());
9941 let start_row = selection.start.row;
9942 let mut end_row = ending_row(selection, display_map);
9943
9944 while let Some(next_selection) = selections.peek() {
9945 if next_selection.start.row <= end_row {
9946 end_row = ending_row(next_selection, display_map);
9947 contiguous_row_selections.push(selections.next().unwrap().clone());
9948 } else {
9949 break;
9950 }
9951 }
9952 (start_row, end_row)
9953}
9954
9955fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9956 if next_selection.end.column > 0 || next_selection.is_empty() {
9957 display_map.next_line_boundary(next_selection.end).0.row + 1
9958 } else {
9959 next_selection.end.row
9960 }
9961}
9962
9963impl EditorSnapshot {
9964 pub fn remote_selections_in_range<'a>(
9965 &'a self,
9966 range: &'a Range<Anchor>,
9967 collaboration_hub: &dyn CollaborationHub,
9968 cx: &'a AppContext,
9969 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9970 let participant_names = collaboration_hub.user_names(cx);
9971 let participant_indices = collaboration_hub.user_participant_indices(cx);
9972 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9973 let collaborators_by_replica_id = collaborators_by_peer_id
9974 .iter()
9975 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9976 .collect::<HashMap<_, _>>();
9977 self.buffer_snapshot
9978 .remote_selections_in_range(range)
9979 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9980 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9981 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9982 let user_name = participant_names.get(&collaborator.user_id).cloned();
9983 Some(RemoteSelection {
9984 replica_id,
9985 selection,
9986 cursor_shape,
9987 line_mode,
9988 participant_index,
9989 peer_id: collaborator.peer_id,
9990 user_name,
9991 })
9992 })
9993 }
9994
9995 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9996 self.display_snapshot.buffer_snapshot.language_at(position)
9997 }
9998
9999 pub fn is_focused(&self) -> bool {
10000 self.is_focused
10001 }
10002
10003 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10004 self.placeholder_text.as_ref()
10005 }
10006
10007 pub fn scroll_position(&self) -> gpui::Point<f32> {
10008 self.scroll_anchor.scroll_position(&self.display_snapshot)
10009 }
10010
10011 pub fn gutter_dimensions(
10012 &self,
10013 font_id: FontId,
10014 font_size: Pixels,
10015 em_width: Pixels,
10016 max_line_number_width: Pixels,
10017 cx: &AppContext,
10018 ) -> GutterDimensions {
10019 if !self.show_gutter {
10020 return GutterDimensions::default();
10021 }
10022 let descent = cx.text_system().descent(font_id, font_size);
10023
10024 let show_git_gutter = matches!(
10025 ProjectSettings::get_global(cx).git.git_gutter,
10026 Some(GitGutterSetting::TrackedFiles)
10027 );
10028 let gutter_settings = EditorSettings::get_global(cx).gutter;
10029
10030 let line_gutter_width = if gutter_settings.line_numbers {
10031 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10032 let min_width_for_number_on_gutter = em_width * 4.0;
10033 max_line_number_width.max(min_width_for_number_on_gutter)
10034 } else {
10035 0.0.into()
10036 };
10037
10038 let git_blame_entries_width = self
10039 .show_git_blame
10040 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10041
10042 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10043 left_padding += if gutter_settings.code_actions {
10044 em_width * 3.0
10045 } else if show_git_gutter && gutter_settings.line_numbers {
10046 em_width * 2.0
10047 } else if show_git_gutter || gutter_settings.line_numbers {
10048 em_width
10049 } else {
10050 px(0.)
10051 };
10052
10053 let right_padding = if gutter_settings.folds && gutter_settings.line_numbers {
10054 em_width * 4.0
10055 } else if gutter_settings.folds {
10056 em_width * 3.0
10057 } else if gutter_settings.line_numbers {
10058 em_width
10059 } else {
10060 px(0.)
10061 };
10062
10063 GutterDimensions {
10064 left_padding,
10065 right_padding,
10066 width: line_gutter_width + left_padding + right_padding,
10067 margin: -descent,
10068 git_blame_entries_width,
10069 }
10070 }
10071}
10072
10073impl Deref for EditorSnapshot {
10074 type Target = DisplaySnapshot;
10075
10076 fn deref(&self) -> &Self::Target {
10077 &self.display_snapshot
10078 }
10079}
10080
10081#[derive(Clone, Debug, PartialEq, Eq)]
10082pub enum EditorEvent {
10083 InputIgnored {
10084 text: Arc<str>,
10085 },
10086 InputHandled {
10087 utf16_range_to_replace: Option<Range<isize>>,
10088 text: Arc<str>,
10089 },
10090 ExcerptsAdded {
10091 buffer: Model<Buffer>,
10092 predecessor: ExcerptId,
10093 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10094 },
10095 ExcerptsRemoved {
10096 ids: Vec<ExcerptId>,
10097 },
10098 BufferEdited,
10099 Edited,
10100 Reparsed,
10101 Focused,
10102 Blurred,
10103 DirtyChanged,
10104 Saved,
10105 TitleChanged,
10106 DiffBaseChanged,
10107 SelectionsChanged {
10108 local: bool,
10109 },
10110 ScrollPositionChanged {
10111 local: bool,
10112 autoscroll: bool,
10113 },
10114 Closed,
10115 TransactionUndone {
10116 transaction_id: clock::Lamport,
10117 },
10118 TransactionBegun {
10119 transaction_id: clock::Lamport,
10120 },
10121}
10122
10123impl EventEmitter<EditorEvent> for Editor {}
10124
10125impl FocusableView for Editor {
10126 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10127 self.focus_handle.clone()
10128 }
10129}
10130
10131impl Render for Editor {
10132 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10133 let settings = ThemeSettings::get_global(cx);
10134 let text_style = match self.mode {
10135 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10136 color: cx.theme().colors().editor_foreground,
10137 font_family: settings.ui_font.family.clone(),
10138 font_features: settings.ui_font.features,
10139 font_size: rems(0.875).into(),
10140 font_weight: FontWeight::NORMAL,
10141 font_style: FontStyle::Normal,
10142 line_height: relative(settings.buffer_line_height.value()),
10143 background_color: None,
10144 underline: None,
10145 strikethrough: None,
10146 white_space: WhiteSpace::Normal,
10147 },
10148
10149 EditorMode::Full => TextStyle {
10150 color: cx.theme().colors().editor_foreground,
10151 font_family: settings.buffer_font.family.clone(),
10152 font_features: settings.buffer_font.features,
10153 font_size: settings.buffer_font_size(cx).into(),
10154 font_weight: FontWeight::NORMAL,
10155 font_style: FontStyle::Normal,
10156 line_height: relative(settings.buffer_line_height.value()),
10157 background_color: None,
10158 underline: None,
10159 strikethrough: None,
10160 white_space: WhiteSpace::Normal,
10161 },
10162 };
10163
10164 let background = match self.mode {
10165 EditorMode::SingleLine => cx.theme().system().transparent,
10166 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10167 EditorMode::Full => cx.theme().colors().editor_background,
10168 };
10169
10170 EditorElement::new(
10171 cx.view(),
10172 EditorStyle {
10173 background,
10174 local_player: cx.theme().players().local(),
10175 text: text_style,
10176 scrollbar_width: px(12.),
10177 syntax: cx.theme().syntax().clone(),
10178 status: cx.theme().status().clone(),
10179 inlay_hints_style: HighlightStyle {
10180 color: Some(cx.theme().status().hint),
10181 ..HighlightStyle::default()
10182 },
10183 suggestions_style: HighlightStyle {
10184 color: Some(cx.theme().status().predictive),
10185 ..HighlightStyle::default()
10186 },
10187 },
10188 )
10189 }
10190}
10191
10192impl ViewInputHandler for Editor {
10193 fn text_for_range(
10194 &mut self,
10195 range_utf16: Range<usize>,
10196 cx: &mut ViewContext<Self>,
10197 ) -> Option<String> {
10198 Some(
10199 self.buffer
10200 .read(cx)
10201 .read(cx)
10202 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
10203 .collect(),
10204 )
10205 }
10206
10207 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10208 // Prevent the IME menu from appearing when holding down an alphabetic key
10209 // while input is disabled.
10210 if !self.input_enabled {
10211 return None;
10212 }
10213
10214 let range = self.selections.newest::<OffsetUtf16>(cx).range();
10215 Some(range.start.0..range.end.0)
10216 }
10217
10218 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10219 let snapshot = self.buffer.read(cx).read(cx);
10220 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
10221 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
10222 }
10223
10224 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
10225 self.clear_highlights::<InputComposition>(cx);
10226 self.ime_transaction.take();
10227 }
10228
10229 fn replace_text_in_range(
10230 &mut self,
10231 range_utf16: Option<Range<usize>>,
10232 text: &str,
10233 cx: &mut ViewContext<Self>,
10234 ) {
10235 if !self.input_enabled {
10236 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10237 return;
10238 }
10239
10240 self.transact(cx, |this, cx| {
10241 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
10242 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10243 Some(this.selection_replacement_ranges(range_utf16, cx))
10244 } else {
10245 this.marked_text_ranges(cx)
10246 };
10247
10248 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
10249 let newest_selection_id = this.selections.newest_anchor().id;
10250 this.selections
10251 .all::<OffsetUtf16>(cx)
10252 .iter()
10253 .zip(ranges_to_replace.iter())
10254 .find_map(|(selection, range)| {
10255 if selection.id == newest_selection_id {
10256 Some(
10257 (range.start.0 as isize - selection.head().0 as isize)
10258 ..(range.end.0 as isize - selection.head().0 as isize),
10259 )
10260 } else {
10261 None
10262 }
10263 })
10264 });
10265
10266 cx.emit(EditorEvent::InputHandled {
10267 utf16_range_to_replace: range_to_replace,
10268 text: text.into(),
10269 });
10270
10271 if let Some(new_selected_ranges) = new_selected_ranges {
10272 this.change_selections(None, cx, |selections| {
10273 selections.select_ranges(new_selected_ranges)
10274 });
10275 this.backspace(&Default::default(), cx);
10276 }
10277
10278 this.handle_input(text, cx);
10279 });
10280
10281 if let Some(transaction) = self.ime_transaction {
10282 self.buffer.update(cx, |buffer, cx| {
10283 buffer.group_until_transaction(transaction, cx);
10284 });
10285 }
10286
10287 self.unmark_text(cx);
10288 }
10289
10290 fn replace_and_mark_text_in_range(
10291 &mut self,
10292 range_utf16: Option<Range<usize>>,
10293 text: &str,
10294 new_selected_range_utf16: Option<Range<usize>>,
10295 cx: &mut ViewContext<Self>,
10296 ) {
10297 if !self.input_enabled {
10298 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10299 return;
10300 }
10301
10302 let transaction = self.transact(cx, |this, cx| {
10303 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10304 let snapshot = this.buffer.read(cx).read(cx);
10305 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10306 for marked_range in &mut marked_ranges {
10307 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10308 marked_range.start.0 += relative_range_utf16.start;
10309 marked_range.start =
10310 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10311 marked_range.end =
10312 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10313 }
10314 }
10315 Some(marked_ranges)
10316 } else if let Some(range_utf16) = range_utf16 {
10317 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10318 Some(this.selection_replacement_ranges(range_utf16, cx))
10319 } else {
10320 None
10321 };
10322
10323 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10324 let newest_selection_id = this.selections.newest_anchor().id;
10325 this.selections
10326 .all::<OffsetUtf16>(cx)
10327 .iter()
10328 .zip(ranges_to_replace.iter())
10329 .find_map(|(selection, range)| {
10330 if selection.id == newest_selection_id {
10331 Some(
10332 (range.start.0 as isize - selection.head().0 as isize)
10333 ..(range.end.0 as isize - selection.head().0 as isize),
10334 )
10335 } else {
10336 None
10337 }
10338 })
10339 });
10340
10341 cx.emit(EditorEvent::InputHandled {
10342 utf16_range_to_replace: range_to_replace,
10343 text: text.into(),
10344 });
10345
10346 if let Some(ranges) = ranges_to_replace {
10347 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10348 }
10349
10350 let marked_ranges = {
10351 let snapshot = this.buffer.read(cx).read(cx);
10352 this.selections
10353 .disjoint_anchors()
10354 .iter()
10355 .map(|selection| {
10356 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10357 })
10358 .collect::<Vec<_>>()
10359 };
10360
10361 if text.is_empty() {
10362 this.unmark_text(cx);
10363 } else {
10364 this.highlight_text::<InputComposition>(
10365 marked_ranges.clone(),
10366 HighlightStyle {
10367 underline: Some(UnderlineStyle {
10368 thickness: px(1.),
10369 color: None,
10370 wavy: false,
10371 }),
10372 ..Default::default()
10373 },
10374 cx,
10375 );
10376 }
10377
10378 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10379 let use_autoclose = this.use_autoclose;
10380 this.set_use_autoclose(false);
10381 this.handle_input(text, cx);
10382 this.set_use_autoclose(use_autoclose);
10383
10384 if let Some(new_selected_range) = new_selected_range_utf16 {
10385 let snapshot = this.buffer.read(cx).read(cx);
10386 let new_selected_ranges = marked_ranges
10387 .into_iter()
10388 .map(|marked_range| {
10389 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10390 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10391 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10392 snapshot.clip_offset_utf16(new_start, Bias::Left)
10393 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10394 })
10395 .collect::<Vec<_>>();
10396
10397 drop(snapshot);
10398 this.change_selections(None, cx, |selections| {
10399 selections.select_ranges(new_selected_ranges)
10400 });
10401 }
10402 });
10403
10404 self.ime_transaction = self.ime_transaction.or(transaction);
10405 if let Some(transaction) = self.ime_transaction {
10406 self.buffer.update(cx, |buffer, cx| {
10407 buffer.group_until_transaction(transaction, cx);
10408 });
10409 }
10410
10411 if self.text_highlights::<InputComposition>(cx).is_none() {
10412 self.ime_transaction.take();
10413 }
10414 }
10415
10416 fn bounds_for_range(
10417 &mut self,
10418 range_utf16: Range<usize>,
10419 element_bounds: gpui::Bounds<Pixels>,
10420 cx: &mut ViewContext<Self>,
10421 ) -> Option<gpui::Bounds<Pixels>> {
10422 let text_layout_details = self.text_layout_details(cx);
10423 let style = &text_layout_details.editor_style;
10424 let font_id = cx.text_system().resolve_font(&style.text.font());
10425 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10426 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10427 let em_width = cx
10428 .text_system()
10429 .typographic_bounds(font_id, font_size, 'm')
10430 .unwrap()
10431 .size
10432 .width;
10433
10434 let snapshot = self.snapshot(cx);
10435 let scroll_position = snapshot.scroll_position();
10436 let scroll_left = scroll_position.x * em_width;
10437
10438 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10439 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10440 + self.gutter_width;
10441 let y = line_height * (start.row() as f32 - scroll_position.y);
10442
10443 Some(Bounds {
10444 origin: element_bounds.origin + point(x, y),
10445 size: size(em_width, line_height),
10446 })
10447 }
10448}
10449
10450trait SelectionExt {
10451 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10452 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10453 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10454 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10455 -> Range<u32>;
10456}
10457
10458impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10459 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10460 let start = self.start.to_point(buffer);
10461 let end = self.end.to_point(buffer);
10462 if self.reversed {
10463 end..start
10464 } else {
10465 start..end
10466 }
10467 }
10468
10469 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10470 let start = self.start.to_offset(buffer);
10471 let end = self.end.to_offset(buffer);
10472 if self.reversed {
10473 end..start
10474 } else {
10475 start..end
10476 }
10477 }
10478
10479 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10480 let start = self
10481 .start
10482 .to_point(&map.buffer_snapshot)
10483 .to_display_point(map);
10484 let end = self
10485 .end
10486 .to_point(&map.buffer_snapshot)
10487 .to_display_point(map);
10488 if self.reversed {
10489 end..start
10490 } else {
10491 start..end
10492 }
10493 }
10494
10495 fn spanned_rows(
10496 &self,
10497 include_end_if_at_line_start: bool,
10498 map: &DisplaySnapshot,
10499 ) -> Range<u32> {
10500 let start = self.start.to_point(&map.buffer_snapshot);
10501 let mut end = self.end.to_point(&map.buffer_snapshot);
10502 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10503 end.row -= 1;
10504 }
10505
10506 let buffer_start = map.prev_line_boundary(start).0;
10507 let buffer_end = map.next_line_boundary(end).0;
10508 buffer_start.row..buffer_end.row + 1
10509 }
10510}
10511
10512impl<T: InvalidationRegion> InvalidationStack<T> {
10513 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10514 where
10515 S: Clone + ToOffset,
10516 {
10517 while let Some(region) = self.last() {
10518 let all_selections_inside_invalidation_ranges =
10519 if selections.len() == region.ranges().len() {
10520 selections
10521 .iter()
10522 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10523 .all(|(selection, invalidation_range)| {
10524 let head = selection.head().to_offset(buffer);
10525 invalidation_range.start <= head && invalidation_range.end >= head
10526 })
10527 } else {
10528 false
10529 };
10530
10531 if all_selections_inside_invalidation_ranges {
10532 break;
10533 } else {
10534 self.pop();
10535 }
10536 }
10537 }
10538}
10539
10540impl<T> Default for InvalidationStack<T> {
10541 fn default() -> Self {
10542 Self(Default::default())
10543 }
10544}
10545
10546impl<T> Deref for InvalidationStack<T> {
10547 type Target = Vec<T>;
10548
10549 fn deref(&self) -> &Self::Target {
10550 &self.0
10551 }
10552}
10553
10554impl<T> DerefMut for InvalidationStack<T> {
10555 fn deref_mut(&mut self) -> &mut Self::Target {
10556 &mut self.0
10557 }
10558}
10559
10560impl InvalidationRegion for SnippetState {
10561 fn ranges(&self) -> &[Range<Anchor>] {
10562 &self.ranges[self.active_index]
10563 }
10564}
10565
10566pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10567 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10568
10569 Arc::new(move |cx: &mut BlockContext| {
10570 let group_id: SharedString = cx.block_id.to_string().into();
10571
10572 let mut text_style = cx.text_style().clone();
10573 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10574
10575 let multi_line_diagnostic = diagnostic.message.contains('\n');
10576
10577 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
10578 if multi_line_diagnostic {
10579 v_flex()
10580 } else {
10581 h_flex()
10582 }
10583 .children(diagnostic.is_primary.then(|| {
10584 IconButton::new(("close-block", block_id), IconName::XCircle)
10585 .icon_color(Color::Muted)
10586 .size(ButtonSize::Compact)
10587 .style(ButtonStyle::Transparent)
10588 .visible_on_hover(group_id.clone())
10589 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
10590 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
10591 }))
10592 .child(
10593 IconButton::new(("copy-block", block_id), IconName::Copy)
10594 .icon_color(Color::Muted)
10595 .size(ButtonSize::Compact)
10596 .style(ButtonStyle::Transparent)
10597 .visible_on_hover(group_id.clone())
10598 .on_click({
10599 let message = diagnostic.message.clone();
10600 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10601 })
10602 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10603 )
10604 };
10605
10606 let icon_size = buttons(&diagnostic, cx.block_id)
10607 .into_any_element()
10608 .measure(AvailableSpace::min_size(), cx);
10609
10610 h_flex()
10611 .id(cx.block_id)
10612 .group(group_id.clone())
10613 .relative()
10614 .size_full()
10615 .pl(cx.gutter_dimensions.width)
10616 .w(cx.max_width + cx.gutter_dimensions.width)
10617 .child(
10618 div()
10619 .flex()
10620 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
10621 .flex_shrink(),
10622 )
10623 .child(buttons(&diagnostic, cx.block_id))
10624 .child(div().flex().flex_shrink_0().child(
10625 StyledText::new(text_without_backticks.clone()).with_highlights(
10626 &text_style,
10627 code_ranges.iter().map(|range| {
10628 (
10629 range.clone(),
10630 HighlightStyle {
10631 font_weight: Some(FontWeight::BOLD),
10632 ..Default::default()
10633 },
10634 )
10635 }),
10636 ),
10637 ))
10638 .into_any_element()
10639 })
10640}
10641
10642pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10643 let mut text_without_backticks = String::new();
10644 let mut code_ranges = Vec::new();
10645
10646 if let Some(source) = &diagnostic.source {
10647 text_without_backticks.push_str(&source);
10648 code_ranges.push(0..source.len());
10649 text_without_backticks.push_str(": ");
10650 }
10651
10652 let mut prev_offset = 0;
10653 let mut in_code_block = false;
10654 for (ix, _) in diagnostic
10655 .message
10656 .match_indices('`')
10657 .chain([(diagnostic.message.len(), "")])
10658 {
10659 let prev_len = text_without_backticks.len();
10660 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10661 prev_offset = ix + 1;
10662 if in_code_block {
10663 code_ranges.push(prev_len..text_without_backticks.len());
10664 in_code_block = false;
10665 } else {
10666 in_code_block = true;
10667 }
10668 }
10669
10670 (text_without_backticks.into(), code_ranges)
10671}
10672
10673fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10674 match (severity, valid) {
10675 (DiagnosticSeverity::ERROR, true) => colors.error,
10676 (DiagnosticSeverity::ERROR, false) => colors.error,
10677 (DiagnosticSeverity::WARNING, true) => colors.warning,
10678 (DiagnosticSeverity::WARNING, false) => colors.warning,
10679 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10680 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10681 (DiagnosticSeverity::HINT, true) => colors.info,
10682 (DiagnosticSeverity::HINT, false) => colors.info,
10683 _ => colors.ignored,
10684 }
10685}
10686
10687pub fn styled_runs_for_code_label<'a>(
10688 label: &'a CodeLabel,
10689 syntax_theme: &'a theme::SyntaxTheme,
10690) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10691 let fade_out = HighlightStyle {
10692 fade_out: Some(0.35),
10693 ..Default::default()
10694 };
10695
10696 let mut prev_end = label.filter_range.end;
10697 label
10698 .runs
10699 .iter()
10700 .enumerate()
10701 .flat_map(move |(ix, (range, highlight_id))| {
10702 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10703 style
10704 } else {
10705 return Default::default();
10706 };
10707 let mut muted_style = style;
10708 muted_style.highlight(fade_out);
10709
10710 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10711 if range.start >= label.filter_range.end {
10712 if range.start > prev_end {
10713 runs.push((prev_end..range.start, fade_out));
10714 }
10715 runs.push((range.clone(), muted_style));
10716 } else if range.end <= label.filter_range.end {
10717 runs.push((range.clone(), style));
10718 } else {
10719 runs.push((range.start..label.filter_range.end, style));
10720 runs.push((label.filter_range.end..range.end, muted_style));
10721 }
10722 prev_end = cmp::max(prev_end, range.end);
10723
10724 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10725 runs.push((prev_end..label.text.len(), fade_out));
10726 }
10727
10728 runs
10729 })
10730}
10731
10732pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
10733 let mut prev_index = 0;
10734 let mut prev_codepoint: Option<char> = None;
10735 text.char_indices()
10736 .chain([(text.len(), '\0')])
10737 .filter_map(move |(index, codepoint)| {
10738 let prev_codepoint = prev_codepoint.replace(codepoint)?;
10739 let is_boundary = index == text.len()
10740 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
10741 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
10742 if is_boundary {
10743 let chunk = &text[prev_index..index];
10744 prev_index = index;
10745 Some(chunk)
10746 } else {
10747 None
10748 }
10749 })
10750}
10751
10752trait RangeToAnchorExt {
10753 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10754}
10755
10756impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10757 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10758 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10759 }
10760}