1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides it's behaviour.
15pub mod actions;
16mod blink_manager;
17pub mod display_map;
18mod editor_settings;
19mod element;
20mod inlay_hint_cache;
21
22mod debounced_delay;
23mod git;
24mod highlight_matching_bracket;
25mod hover_links;
26mod hover_popover;
27pub mod items;
28mod mouse_context_menu;
29pub mod movement;
30mod persistence;
31mod rust_analyzer_ext;
32pub mod scroll;
33mod selections_collection;
34
35#[cfg(test)]
36mod editor_tests;
37#[cfg(any(test, feature = "test-support"))]
38pub mod test;
39use ::git::diff::DiffHunk;
40pub(crate) use actions::*;
41use aho_corasick::AhoCorasick;
42use anyhow::{anyhow, Context as _, Result};
43use blink_manager::BlinkManager;
44use client::{Collaborator, ParticipantIndex};
45use clock::ReplicaId;
46use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
47use convert_case::{Case, Casing};
48use copilot::Copilot;
49use debounced_delay::DebouncedDelay;
50pub use display_map::DisplayPoint;
51use display_map::*;
52pub use editor_settings::EditorSettings;
53use element::LineWithInvisibles;
54pub use element::{Cursor, EditorElement, HighlightedRange, HighlightedRangeLine};
55use futures::FutureExt;
56use fuzzy::{StringMatch, StringMatchCandidate};
57use git::diff_hunk_to_display;
58use gpui::{
59 div, impl_actions, point, prelude::*, px, relative, rems, size, uniform_list, Action,
60 AnyElement, AppContext, AsyncWindowContext, BackgroundExecutor, Bounds, ClipboardItem, Context,
61 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
62 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton,
63 ParentElement, Pixels, Render, SharedString, Styled, StyledText, Subscription, Task, TextStyle,
64 UnderlineStyle, UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext,
65 WeakView, WhiteSpace, WindowContext,
66};
67use highlight_matching_bracket::refresh_matching_bracket_highlights;
68use hover_popover::{hide_hover, HoverState};
69use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
70pub use items::MAX_TAB_TITLE_LEN;
71use itertools::Itertools;
72use language::{char_kind, CharKind};
73use language::{
74 language_settings::{self, all_language_settings, InlayHintSettings},
75 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CodeAction,
76 CodeLabel, Completion, CursorShape, Diagnostic, Documentation, IndentKind, IndentSize,
77 Language, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
78};
79
80use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
81use lsp::{DiagnosticSeverity, LanguageServerId};
82use mouse_context_menu::MouseContextMenu;
83use movement::TextLayoutDetails;
84use multi_buffer::ToOffsetUtf16;
85pub use multi_buffer::{
86 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
87 ToPoint,
88};
89use ordered_float::OrderedFloat;
90use parking_lot::{Mutex, RwLock};
91use project::{FormatTrigger, Location, Project, ProjectPath, ProjectTransaction};
92use rand::prelude::*;
93use rpc::proto::*;
94use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
95use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
96use serde::{Deserialize, Serialize};
97use settings::{Settings, SettingsStore};
98use smallvec::SmallVec;
99use snippet::Snippet;
100use std::{
101 any::TypeId,
102 borrow::Cow,
103 cmp::{self, Ordering, Reverse},
104 mem,
105 num::NonZeroU32,
106 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
107 path::Path,
108 sync::Arc,
109 time::{Duration, Instant},
110};
111pub use sum_tree::Bias;
112use sum_tree::TreeMap;
113use text::{BufferId, OffsetUtf16, Rope};
114use theme::{
115 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
116 ThemeColors, ThemeSettings,
117};
118use ui::{
119 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
120 Tooltip,
121};
122use util::{maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
123use workspace::Toast;
124use workspace::{searchable::SearchEvent, ItemNavHistory, Pane, SplitDirection, ViewId, Workspace};
125
126const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
127const MAX_LINE_LEN: usize = 1024;
128const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
129const MAX_SELECTION_HISTORY_LEN: usize = 1024;
130const COPILOT_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
131pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
132#[doc(hidden)]
133pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
134#[doc(hidden)]
135pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
136
137pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
138
139pub fn render_parsed_markdown(
140 element_id: impl Into<ElementId>,
141 parsed: &language::ParsedMarkdown,
142 editor_style: &EditorStyle,
143 workspace: Option<WeakView<Workspace>>,
144 cx: &mut ViewContext<Editor>,
145) -> InteractiveText {
146 let code_span_background_color = cx
147 .theme()
148 .colors()
149 .editor_document_highlight_read_background;
150
151 let highlights = gpui::combine_highlights(
152 parsed.highlights.iter().filter_map(|(range, highlight)| {
153 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
154 Some((range.clone(), highlight))
155 }),
156 parsed
157 .regions
158 .iter()
159 .zip(&parsed.region_ranges)
160 .filter_map(|(region, range)| {
161 if region.code {
162 Some((
163 range.clone(),
164 HighlightStyle {
165 background_color: Some(code_span_background_color),
166 ..Default::default()
167 },
168 ))
169 } else {
170 None
171 }
172 }),
173 );
174
175 let mut links = Vec::new();
176 let mut link_ranges = Vec::new();
177 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
178 if let Some(link) = region.link.clone() {
179 links.push(link);
180 link_ranges.push(range.clone());
181 }
182 }
183
184 InteractiveText::new(
185 element_id,
186 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
187 )
188 .on_click(link_ranges, move |clicked_range_ix, cx| {
189 match &links[clicked_range_ix] {
190 markdown::Link::Web { url } => cx.open_url(url),
191 markdown::Link::Path { path } => {
192 if let Some(workspace) = &workspace {
193 _ = workspace.update(cx, |workspace, cx| {
194 workspace.open_abs_path(path.clone(), false, cx).detach();
195 });
196 }
197 }
198 }
199 })
200}
201
202#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
203pub(crate) enum InlayId {
204 Suggestion(usize),
205 Hint(usize),
206}
207
208impl InlayId {
209 fn id(&self) -> usize {
210 match self {
211 Self::Suggestion(id) => *id,
212 Self::Hint(id) => *id,
213 }
214 }
215}
216
217enum DocumentHighlightRead {}
218enum DocumentHighlightWrite {}
219enum InputComposition {}
220
221#[derive(Copy, Clone, PartialEq, Eq)]
222pub enum Direction {
223 Prev,
224 Next,
225}
226
227pub fn init_settings(cx: &mut AppContext) {
228 EditorSettings::register(cx);
229}
230
231pub fn init(cx: &mut AppContext) {
232 init_settings(cx);
233
234 workspace::register_project_item::<Editor>(cx);
235 workspace::register_followable_item::<Editor>(cx);
236 workspace::register_deserializable_item::<Editor>(cx);
237 cx.observe_new_views(
238 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
239 workspace.register_action(Editor::new_file);
240 workspace.register_action(Editor::new_file_in_direction);
241 },
242 )
243 .detach();
244
245 cx.on_action(move |_: &workspace::NewFile, cx| {
246 let app_state = workspace::AppState::global(cx);
247 if let Some(app_state) = app_state.upgrade() {
248 workspace::open_new(&app_state, cx, |workspace, cx| {
249 Editor::new_file(workspace, &Default::default(), cx)
250 })
251 .detach();
252 }
253 });
254 cx.on_action(move |_: &workspace::NewWindow, cx| {
255 let app_state = workspace::AppState::global(cx);
256 if let Some(app_state) = app_state.upgrade() {
257 workspace::open_new(&app_state, cx, |workspace, cx| {
258 Editor::new_file(workspace, &Default::default(), cx)
259 })
260 .detach();
261 }
262 });
263}
264
265trait InvalidationRegion {
266 fn ranges(&self) -> &[Range<Anchor>];
267}
268
269#[derive(Clone, Debug, PartialEq)]
270pub enum SelectPhase {
271 Begin {
272 position: DisplayPoint,
273 add: bool,
274 click_count: usize,
275 },
276 BeginColumnar {
277 position: DisplayPoint,
278 goal_column: u32,
279 },
280 Extend {
281 position: DisplayPoint,
282 click_count: usize,
283 },
284 Update {
285 position: DisplayPoint,
286 goal_column: u32,
287 scroll_delta: gpui::Point<f32>,
288 },
289 End,
290}
291
292#[derive(Clone, Debug)]
293pub(crate) enum SelectMode {
294 Character,
295 Word(Range<Anchor>),
296 Line(Range<Anchor>),
297 All,
298}
299
300#[derive(Copy, Clone, PartialEq, Eq, Debug)]
301pub enum EditorMode {
302 SingleLine,
303 AutoHeight { max_lines: usize },
304 Full,
305}
306
307#[derive(Clone, Debug)]
308pub enum SoftWrap {
309 None,
310 EditorWidth,
311 Column(u32),
312}
313
314#[derive(Clone)]
315pub struct EditorStyle {
316 pub background: Hsla,
317 pub local_player: PlayerColor,
318 pub text: TextStyle,
319 pub scrollbar_width: Pixels,
320 pub syntax: Arc<SyntaxTheme>,
321 pub status: StatusColors,
322 pub inlays_style: HighlightStyle,
323 pub suggestions_style: HighlightStyle,
324}
325
326impl Default for EditorStyle {
327 fn default() -> Self {
328 Self {
329 background: Hsla::default(),
330 local_player: PlayerColor::default(),
331 text: TextStyle::default(),
332 scrollbar_width: Pixels::default(),
333 syntax: Default::default(),
334 // HACK: Status colors don't have a real default.
335 // We should look into removing the status colors from the editor
336 // style and retrieve them directly from the theme.
337 status: StatusColors::dark(),
338 inlays_style: HighlightStyle::default(),
339 suggestions_style: HighlightStyle::default(),
340 }
341 }
342}
343
344type CompletionId = usize;
345
346// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
347// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
348
349type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<Range<Anchor>>);
350type InlayBackgroundHighlight = (fn(&ThemeColors) -> Hsla, Vec<InlayHighlight>);
351
352pub struct Editor {
353 handle: WeakView<Self>,
354 focus_handle: FocusHandle,
355 buffer: Model<MultiBuffer>,
356 display_map: Model<DisplayMap>,
357 pub selections: SelectionsCollection,
358 pub scroll_manager: ScrollManager,
359 columnar_selection_tail: Option<Anchor>,
360 add_selections_state: Option<AddSelectionsState>,
361 select_next_state: Option<SelectNextState>,
362 select_prev_state: Option<SelectNextState>,
363 selection_history: SelectionHistory,
364 autoclose_regions: Vec<AutocloseRegion>,
365 snippet_stack: InvalidationStack<SnippetState>,
366 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
367 ime_transaction: Option<TransactionId>,
368 active_diagnostics: Option<ActiveDiagnosticGroup>,
369 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
370 project: Option<Model<Project>>,
371 completion_provider: Option<Box<dyn CompletionProvider>>,
372 collaboration_hub: Option<Box<dyn CollaborationHub>>,
373 blink_manager: Model<BlinkManager>,
374 show_cursor_names: bool,
375 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
376 pub show_local_selections: bool,
377 mode: EditorMode,
378 show_breadcrumbs: bool,
379 show_gutter: bool,
380 show_wrap_guides: Option<bool>,
381 placeholder_text: Option<Arc<str>>,
382 highlighted_rows: Option<Range<u32>>,
383 background_highlights: BTreeMap<TypeId, BackgroundHighlight>,
384 inlay_background_highlights: TreeMap<Option<TypeId>, InlayBackgroundHighlight>,
385 nav_history: Option<ItemNavHistory>,
386 context_menu: RwLock<Option<ContextMenu>>,
387 mouse_context_menu: Option<MouseContextMenu>,
388 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
389 next_completion_id: CompletionId,
390 completion_documentation_pre_resolve_debounce: DebouncedDelay,
391 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
392 code_actions_task: Option<Task<()>>,
393 document_highlights_task: Option<Task<()>>,
394 pending_rename: Option<RenameState>,
395 searchable: bool,
396 cursor_shape: CursorShape,
397 collapse_matches: bool,
398 autoindent_mode: Option<AutoindentMode>,
399 workspace: Option<(WeakView<Workspace>, i64)>,
400 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
401 input_enabled: bool,
402 use_modal_editing: bool,
403 read_only: bool,
404 leader_peer_id: Option<PeerId>,
405 remote_id: Option<ViewId>,
406 hover_state: HoverState,
407 gutter_hovered: bool,
408 hovered_link_state: Option<HoveredLinkState>,
409 copilot_state: CopilotState,
410 inlay_hint_cache: InlayHintCache,
411 next_inlay_id: usize,
412 _subscriptions: Vec<Subscription>,
413 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
414 gutter_width: Pixels,
415 style: Option<EditorStyle>,
416 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
417 show_copilot_suggestions: bool,
418 use_autoclose: bool,
419 custom_context_menu: Option<
420 Box<
421 dyn 'static
422 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
423 >,
424 >,
425}
426
427pub struct EditorSnapshot {
428 pub mode: EditorMode,
429 show_gutter: bool,
430 pub display_snapshot: DisplaySnapshot,
431 pub placeholder_text: Option<Arc<str>>,
432 is_focused: bool,
433 scroll_anchor: ScrollAnchor,
434 ongoing_scroll: OngoingScroll,
435}
436
437pub struct GutterDimensions {
438 pub padding: Pixels,
439 pub width: Pixels,
440 pub margin: Pixels,
441}
442
443impl Default for GutterDimensions {
444 fn default() -> Self {
445 Self {
446 padding: Pixels::ZERO,
447 width: Pixels::ZERO,
448 margin: Pixels::ZERO,
449 }
450 }
451}
452
453#[derive(Debug)]
454pub struct RemoteSelection {
455 pub replica_id: ReplicaId,
456 pub selection: Selection<Anchor>,
457 pub cursor_shape: CursorShape,
458 pub peer_id: PeerId,
459 pub line_mode: bool,
460 pub participant_index: Option<ParticipantIndex>,
461 pub user_name: Option<SharedString>,
462}
463
464#[derive(Clone, Debug)]
465struct SelectionHistoryEntry {
466 selections: Arc<[Selection<Anchor>]>,
467 select_next_state: Option<SelectNextState>,
468 select_prev_state: Option<SelectNextState>,
469 add_selections_state: Option<AddSelectionsState>,
470}
471
472enum SelectionHistoryMode {
473 Normal,
474 Undoing,
475 Redoing,
476}
477
478#[derive(Clone, PartialEq, Eq, Hash)]
479struct HoveredCursor {
480 replica_id: u16,
481 selection_id: usize,
482}
483
484impl Default for SelectionHistoryMode {
485 fn default() -> Self {
486 Self::Normal
487 }
488}
489
490#[derive(Default)]
491struct SelectionHistory {
492 #[allow(clippy::type_complexity)]
493 selections_by_transaction:
494 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
495 mode: SelectionHistoryMode,
496 undo_stack: VecDeque<SelectionHistoryEntry>,
497 redo_stack: VecDeque<SelectionHistoryEntry>,
498}
499
500impl SelectionHistory {
501 fn insert_transaction(
502 &mut self,
503 transaction_id: TransactionId,
504 selections: Arc<[Selection<Anchor>]>,
505 ) {
506 self.selections_by_transaction
507 .insert(transaction_id, (selections, None));
508 }
509
510 #[allow(clippy::type_complexity)]
511 fn transaction(
512 &self,
513 transaction_id: TransactionId,
514 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
515 self.selections_by_transaction.get(&transaction_id)
516 }
517
518 #[allow(clippy::type_complexity)]
519 fn transaction_mut(
520 &mut self,
521 transaction_id: TransactionId,
522 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
523 self.selections_by_transaction.get_mut(&transaction_id)
524 }
525
526 fn push(&mut self, entry: SelectionHistoryEntry) {
527 if !entry.selections.is_empty() {
528 match self.mode {
529 SelectionHistoryMode::Normal => {
530 self.push_undo(entry);
531 self.redo_stack.clear();
532 }
533 SelectionHistoryMode::Undoing => self.push_redo(entry),
534 SelectionHistoryMode::Redoing => self.push_undo(entry),
535 }
536 }
537 }
538
539 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
540 if self
541 .undo_stack
542 .back()
543 .map_or(true, |e| e.selections != entry.selections)
544 {
545 self.undo_stack.push_back(entry);
546 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
547 self.undo_stack.pop_front();
548 }
549 }
550 }
551
552 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
553 if self
554 .redo_stack
555 .back()
556 .map_or(true, |e| e.selections != entry.selections)
557 {
558 self.redo_stack.push_back(entry);
559 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
560 self.redo_stack.pop_front();
561 }
562 }
563 }
564}
565
566#[derive(Clone, Debug)]
567struct AddSelectionsState {
568 above: bool,
569 stack: Vec<usize>,
570}
571
572#[derive(Clone)]
573struct SelectNextState {
574 query: AhoCorasick,
575 wordwise: bool,
576 done: bool,
577}
578
579impl std::fmt::Debug for SelectNextState {
580 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
581 f.debug_struct(std::any::type_name::<Self>())
582 .field("wordwise", &self.wordwise)
583 .field("done", &self.done)
584 .finish()
585 }
586}
587
588#[derive(Debug)]
589struct AutocloseRegion {
590 selection_id: usize,
591 range: Range<Anchor>,
592 pair: BracketPair,
593}
594
595#[derive(Debug)]
596struct SnippetState {
597 ranges: Vec<Vec<Range<Anchor>>>,
598 active_index: usize,
599}
600
601#[doc(hidden)]
602pub struct RenameState {
603 pub range: Range<Anchor>,
604 pub old_name: Arc<str>,
605 pub editor: View<Editor>,
606 block_id: BlockId,
607}
608
609struct InvalidationStack<T>(Vec<T>);
610
611enum ContextMenu {
612 Completions(CompletionsMenu),
613 CodeActions(CodeActionsMenu),
614}
615
616impl ContextMenu {
617 fn select_first(
618 &mut self,
619 project: Option<&Model<Project>>,
620 cx: &mut ViewContext<Editor>,
621 ) -> bool {
622 if self.visible() {
623 match self {
624 ContextMenu::Completions(menu) => menu.select_first(project, cx),
625 ContextMenu::CodeActions(menu) => menu.select_first(cx),
626 }
627 true
628 } else {
629 false
630 }
631 }
632
633 fn select_prev(
634 &mut self,
635 project: Option<&Model<Project>>,
636 cx: &mut ViewContext<Editor>,
637 ) -> bool {
638 if self.visible() {
639 match self {
640 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
641 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
642 }
643 true
644 } else {
645 false
646 }
647 }
648
649 fn select_next(
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_next(project, cx),
657 ContextMenu::CodeActions(menu) => menu.select_next(cx),
658 }
659 true
660 } else {
661 false
662 }
663 }
664
665 fn select_last(
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_last(project, cx),
673 ContextMenu::CodeActions(menu) => menu.select_last(cx),
674 }
675 true
676 } else {
677 false
678 }
679 }
680
681 fn visible(&self) -> bool {
682 match self {
683 ContextMenu::Completions(menu) => menu.visible(),
684 ContextMenu::CodeActions(menu) => menu.visible(),
685 }
686 }
687
688 fn render(
689 &self,
690 cursor_position: DisplayPoint,
691 style: &EditorStyle,
692 max_height: Pixels,
693 workspace: Option<WeakView<Workspace>>,
694 cx: &mut ViewContext<Editor>,
695 ) -> (DisplayPoint, AnyElement) {
696 match self {
697 ContextMenu::Completions(menu) => (
698 cursor_position,
699 menu.render(style, max_height, workspace, cx),
700 ),
701 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
702 }
703 }
704}
705
706#[derive(Clone)]
707struct CompletionsMenu {
708 id: CompletionId,
709 initial_position: Anchor,
710 buffer: Model<Buffer>,
711 completions: Arc<RwLock<Box<[Completion]>>>,
712 match_candidates: Arc<[StringMatchCandidate]>,
713 matches: Arc<[StringMatch]>,
714 selected_item: usize,
715 scroll_handle: UniformListScrollHandle,
716 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
717}
718
719impl CompletionsMenu {
720 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
721 self.selected_item = 0;
722 self.scroll_handle.scroll_to_item(self.selected_item);
723 self.attempt_resolve_selected_completion_documentation(project, cx);
724 cx.notify();
725 }
726
727 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
728 if self.selected_item > 0 {
729 self.selected_item -= 1;
730 } else {
731 self.selected_item = self.matches.len() - 1;
732 }
733 self.scroll_handle.scroll_to_item(self.selected_item);
734 self.attempt_resolve_selected_completion_documentation(project, cx);
735 cx.notify();
736 }
737
738 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
739 if self.selected_item + 1 < self.matches.len() {
740 self.selected_item += 1;
741 } else {
742 self.selected_item = 0;
743 }
744 self.scroll_handle.scroll_to_item(self.selected_item);
745 self.attempt_resolve_selected_completion_documentation(project, cx);
746 cx.notify();
747 }
748
749 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
750 self.selected_item = self.matches.len() - 1;
751 self.scroll_handle.scroll_to_item(self.selected_item);
752 self.attempt_resolve_selected_completion_documentation(project, cx);
753 cx.notify();
754 }
755
756 fn pre_resolve_completion_documentation(
757 completions: Arc<RwLock<Box<[Completion]>>>,
758 matches: Arc<[StringMatch]>,
759 editor: &Editor,
760 cx: &mut ViewContext<Editor>,
761 ) -> Task<()> {
762 let settings = EditorSettings::get_global(cx);
763 if !settings.show_completion_documentation {
764 return Task::ready(());
765 }
766
767 let Some(provider) = editor.completion_provider.as_ref() else {
768 return Task::ready(());
769 };
770
771 let resolve_task = provider.resolve_completions(
772 matches.iter().map(|m| m.candidate_id).collect(),
773 completions.clone(),
774 cx,
775 );
776
777 return cx.spawn(move |this, mut cx| async move {
778 if let Some(true) = resolve_task.await.log_err() {
779 this.update(&mut cx, |_, cx| cx.notify()).ok();
780 }
781 });
782 }
783
784 fn attempt_resolve_selected_completion_documentation(
785 &mut self,
786 project: Option<&Model<Project>>,
787 cx: &mut ViewContext<Editor>,
788 ) {
789 let settings = EditorSettings::get_global(cx);
790 if !settings.show_completion_documentation {
791 return;
792 }
793
794 let completion_index = self.matches[self.selected_item].candidate_id;
795 let Some(project) = project else {
796 return;
797 };
798
799 let resolve_task = project.update(cx, |project, cx| {
800 project.resolve_completions(vec![completion_index], self.completions.clone(), cx)
801 });
802
803 let delay_ms =
804 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
805 let delay = Duration::from_millis(delay_ms);
806
807 self.selected_completion_documentation_resolve_debounce
808 .lock()
809 .fire_new(delay, cx, |_, cx| {
810 cx.spawn(move |this, mut cx| async move {
811 if let Some(true) = resolve_task.await.log_err() {
812 this.update(&mut cx, |_, cx| cx.notify()).ok();
813 }
814 })
815 });
816 }
817
818 fn visible(&self) -> bool {
819 !self.matches.is_empty()
820 }
821
822 fn render(
823 &self,
824 style: &EditorStyle,
825 max_height: Pixels,
826 workspace: Option<WeakView<Workspace>>,
827 cx: &mut ViewContext<Editor>,
828 ) -> AnyElement {
829 let settings = EditorSettings::get_global(cx);
830 let show_completion_documentation = settings.show_completion_documentation;
831
832 let widest_completion_ix = self
833 .matches
834 .iter()
835 .enumerate()
836 .max_by_key(|(_, mat)| {
837 let completions = self.completions.read();
838 let completion = &completions[mat.candidate_id];
839 let documentation = &completion.documentation;
840
841 let mut len = completion.label.text.chars().count();
842 if let Some(Documentation::SingleLine(text)) = documentation {
843 if show_completion_documentation {
844 len += text.chars().count();
845 }
846 }
847
848 len
849 })
850 .map(|(ix, _)| ix);
851
852 let completions = self.completions.clone();
853 let matches = self.matches.clone();
854 let selected_item = self.selected_item;
855 let style = style.clone();
856
857 let multiline_docs = if show_completion_documentation {
858 let mat = &self.matches[selected_item];
859 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
860 Some(Documentation::MultiLinePlainText(text)) => {
861 Some(div().child(SharedString::from(text.clone())))
862 }
863 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
864 Some(div().child(render_parsed_markdown(
865 "completions_markdown",
866 parsed,
867 &style,
868 workspace,
869 cx,
870 )))
871 }
872 _ => None,
873 };
874 multiline_docs.map(|div| {
875 div.id("multiline_docs")
876 .max_h(max_height)
877 .flex_1()
878 .px_1p5()
879 .py_1()
880 .min_w(px(260.))
881 .max_w(px(640.))
882 .w(px(500.))
883 .overflow_y_scroll()
884 // Prevent a mouse down on documentation from being propagated to the editor,
885 // because that would move the cursor.
886 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
887 })
888 } else {
889 None
890 };
891
892 let list = uniform_list(
893 cx.view().clone(),
894 "completions",
895 matches.len(),
896 move |_editor, range, cx| {
897 let start_ix = range.start;
898 let completions_guard = completions.read();
899
900 matches[range]
901 .iter()
902 .enumerate()
903 .map(|(ix, mat)| {
904 let item_ix = start_ix + ix;
905 let candidate_id = mat.candidate_id;
906 let completion = &completions_guard[candidate_id];
907
908 let documentation = if show_completion_documentation {
909 &completion.documentation
910 } else {
911 &None
912 };
913
914 let highlights = gpui::combine_highlights(
915 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
916 styled_runs_for_code_label(&completion.label, &style.syntax).map(
917 |(range, mut highlight)| {
918 // Ignore font weight for syntax highlighting, as we'll use it
919 // for fuzzy matches.
920 highlight.font_weight = None;
921 (range, highlight)
922 },
923 ),
924 );
925 let completion_label = StyledText::new(completion.label.text.clone())
926 .with_highlights(&style.text, highlights);
927 let documentation_label =
928 if let Some(Documentation::SingleLine(text)) = documentation {
929 if text.trim().is_empty() {
930 None
931 } else {
932 Some(
933 h_flex().ml_4().child(
934 Label::new(text.clone())
935 .size(LabelSize::Small)
936 .color(Color::Muted),
937 ),
938 )
939 }
940 } else {
941 None
942 };
943
944 div().min_w(px(220.)).max_w(px(540.)).child(
945 ListItem::new(mat.candidate_id)
946 .inset(true)
947 .selected(item_ix == selected_item)
948 .on_click(cx.listener(move |editor, _event, cx| {
949 cx.stop_propagation();
950 editor
951 .confirm_completion(
952 &ConfirmCompletion {
953 item_ix: Some(item_ix),
954 },
955 cx,
956 )
957 .map(|task| task.detach_and_log_err(cx));
958 }))
959 .child(h_flex().overflow_hidden().child(completion_label))
960 .end_slot::<Div>(documentation_label),
961 )
962 })
963 .collect()
964 },
965 )
966 .max_h(max_height)
967 .track_scroll(self.scroll_handle.clone())
968 .with_width_from_item(widest_completion_ix);
969
970 Popover::new()
971 .child(list)
972 .when_some(multiline_docs, |popover, multiline_docs| {
973 popover.aside(multiline_docs)
974 })
975 .into_any_element()
976 }
977
978 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
979 let mut matches = if let Some(query) = query {
980 fuzzy::match_strings(
981 &self.match_candidates,
982 query,
983 query.chars().any(|c| c.is_uppercase()),
984 100,
985 &Default::default(),
986 executor,
987 )
988 .await
989 } else {
990 self.match_candidates
991 .iter()
992 .enumerate()
993 .map(|(candidate_id, candidate)| StringMatch {
994 candidate_id,
995 score: Default::default(),
996 positions: Default::default(),
997 string: candidate.string.clone(),
998 })
999 .collect()
1000 };
1001
1002 // Remove all candidates where the query's start does not match the start of any word in the candidate
1003 if let Some(query) = query {
1004 if let Some(query_start) = query.chars().next() {
1005 matches.retain(|string_match| {
1006 split_words(&string_match.string).any(|word| {
1007 // Check that the first codepoint of the word as lowercase matches the first
1008 // codepoint of the query as lowercase
1009 word.chars()
1010 .flat_map(|codepoint| codepoint.to_lowercase())
1011 .zip(query_start.to_lowercase())
1012 .all(|(word_cp, query_cp)| word_cp == query_cp)
1013 })
1014 });
1015 }
1016 }
1017
1018 let completions = self.completions.read();
1019 matches.sort_unstable_by_key(|mat| {
1020 // We do want to strike a balance here between what the language server tells us
1021 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1022 // `Creat` and there is a local variable called `CreateComponent`).
1023 // So what we do is: we bucket all matches into two buckets
1024 // - Strong matches
1025 // - Weak matches
1026 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1027 // and the Weak matches are the rest.
1028 //
1029 // For the strong matches, we sort by the language-servers score first and for the weak
1030 // matches, we prefer our fuzzy finder first.
1031 //
1032 // The thinking behind that: it's useless to take the sort_text the language-server gives
1033 // us into account when it's obviously a bad match.
1034
1035 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1036 enum MatchScore<'a> {
1037 Strong {
1038 sort_text: Option<&'a str>,
1039 score: Reverse<OrderedFloat<f64>>,
1040 sort_key: (usize, &'a str),
1041 },
1042 Weak {
1043 score: Reverse<OrderedFloat<f64>>,
1044 sort_text: Option<&'a str>,
1045 sort_key: (usize, &'a str),
1046 },
1047 }
1048
1049 let completion = &completions[mat.candidate_id];
1050 let sort_key = completion.sort_key();
1051 let sort_text = completion.lsp_completion.sort_text.as_deref();
1052 let score = Reverse(OrderedFloat(mat.score));
1053
1054 if mat.score >= 0.2 {
1055 MatchScore::Strong {
1056 sort_text,
1057 score,
1058 sort_key,
1059 }
1060 } else {
1061 MatchScore::Weak {
1062 score,
1063 sort_text,
1064 sort_key,
1065 }
1066 }
1067 });
1068
1069 for mat in &mut matches {
1070 let completion = &completions[mat.candidate_id];
1071 mat.string = completion.label.text.clone();
1072 for position in &mut mat.positions {
1073 *position += completion.label.filter_range.start;
1074 }
1075 }
1076 drop(completions);
1077
1078 self.matches = matches.into();
1079 self.selected_item = 0;
1080 }
1081}
1082
1083#[derive(Clone)]
1084struct CodeActionsMenu {
1085 actions: Arc<[CodeAction]>,
1086 buffer: Model<Buffer>,
1087 selected_item: usize,
1088 scroll_handle: UniformListScrollHandle,
1089 deployed_from_indicator: bool,
1090}
1091
1092impl CodeActionsMenu {
1093 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1094 self.selected_item = 0;
1095 self.scroll_handle.scroll_to_item(self.selected_item);
1096 cx.notify()
1097 }
1098
1099 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1100 if self.selected_item > 0 {
1101 self.selected_item -= 1;
1102 } else {
1103 self.selected_item = self.actions.len() - 1;
1104 }
1105 self.scroll_handle.scroll_to_item(self.selected_item);
1106 cx.notify();
1107 }
1108
1109 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1110 if self.selected_item + 1 < self.actions.len() {
1111 self.selected_item += 1;
1112 } else {
1113 self.selected_item = 0;
1114 }
1115 self.scroll_handle.scroll_to_item(self.selected_item);
1116 cx.notify();
1117 }
1118
1119 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1120 self.selected_item = self.actions.len() - 1;
1121 self.scroll_handle.scroll_to_item(self.selected_item);
1122 cx.notify()
1123 }
1124
1125 fn visible(&self) -> bool {
1126 !self.actions.is_empty()
1127 }
1128
1129 fn render(
1130 &self,
1131 mut cursor_position: DisplayPoint,
1132 _style: &EditorStyle,
1133 max_height: Pixels,
1134 cx: &mut ViewContext<Editor>,
1135 ) -> (DisplayPoint, AnyElement) {
1136 let actions = self.actions.clone();
1137 let selected_item = self.selected_item;
1138
1139 let element = uniform_list(
1140 cx.view().clone(),
1141 "code_actions_menu",
1142 self.actions.len(),
1143 move |_this, range, cx| {
1144 actions[range.clone()]
1145 .iter()
1146 .enumerate()
1147 .map(|(ix, action)| {
1148 let item_ix = range.start + ix;
1149 let selected = selected_item == item_ix;
1150 let colors = cx.theme().colors();
1151 div()
1152 .px_2()
1153 .text_color(colors.text)
1154 .when(selected, |style| {
1155 style
1156 .bg(colors.element_active)
1157 .text_color(colors.text_accent)
1158 })
1159 .hover(|style| {
1160 style
1161 .bg(colors.element_hover)
1162 .text_color(colors.text_accent)
1163 })
1164 .on_mouse_down(
1165 MouseButton::Left,
1166 cx.listener(move |editor, _, cx| {
1167 cx.stop_propagation();
1168 editor
1169 .confirm_code_action(
1170 &ConfirmCodeAction {
1171 item_ix: Some(item_ix),
1172 },
1173 cx,
1174 )
1175 .map(|task| task.detach_and_log_err(cx));
1176 }),
1177 )
1178 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1179 .child(SharedString::from(action.lsp_action.title.clone()))
1180 })
1181 .collect()
1182 },
1183 )
1184 .elevation_1(cx)
1185 .px_2()
1186 .py_1()
1187 .max_h(max_height)
1188 .track_scroll(self.scroll_handle.clone())
1189 .with_width_from_item(
1190 self.actions
1191 .iter()
1192 .enumerate()
1193 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1194 .map(|(ix, _)| ix),
1195 )
1196 .into_any_element();
1197
1198 if self.deployed_from_indicator {
1199 *cursor_position.column_mut() = 0;
1200 }
1201
1202 (cursor_position, element)
1203 }
1204}
1205
1206pub(crate) struct CopilotState {
1207 excerpt_id: Option<ExcerptId>,
1208 pending_refresh: Task<Option<()>>,
1209 pending_cycling_refresh: Task<Option<()>>,
1210 cycled: bool,
1211 completions: Vec<copilot::Completion>,
1212 active_completion_index: usize,
1213 suggestion: Option<Inlay>,
1214}
1215
1216impl Default for CopilotState {
1217 fn default() -> Self {
1218 Self {
1219 excerpt_id: None,
1220 pending_cycling_refresh: Task::ready(Some(())),
1221 pending_refresh: Task::ready(Some(())),
1222 completions: Default::default(),
1223 active_completion_index: 0,
1224 cycled: false,
1225 suggestion: None,
1226 }
1227 }
1228}
1229
1230impl CopilotState {
1231 fn active_completion(&self) -> Option<&copilot::Completion> {
1232 self.completions.get(self.active_completion_index)
1233 }
1234
1235 fn text_for_active_completion(
1236 &self,
1237 cursor: Anchor,
1238 buffer: &MultiBufferSnapshot,
1239 ) -> Option<&str> {
1240 use language::ToOffset as _;
1241
1242 let completion = self.active_completion()?;
1243 let excerpt_id = self.excerpt_id?;
1244 let completion_buffer = buffer.buffer_for_excerpt(excerpt_id)?;
1245 if excerpt_id != cursor.excerpt_id
1246 || !completion.range.start.is_valid(completion_buffer)
1247 || !completion.range.end.is_valid(completion_buffer)
1248 {
1249 return None;
1250 }
1251
1252 let mut completion_range = completion.range.to_offset(&completion_buffer);
1253 let prefix_len = Self::common_prefix(
1254 completion_buffer.chars_for_range(completion_range.clone()),
1255 completion.text.chars(),
1256 );
1257 completion_range.start += prefix_len;
1258 let suffix_len = Self::common_prefix(
1259 completion_buffer.reversed_chars_for_range(completion_range.clone()),
1260 completion.text[prefix_len..].chars().rev(),
1261 );
1262 completion_range.end = completion_range.end.saturating_sub(suffix_len);
1263
1264 if completion_range.is_empty()
1265 && completion_range.start == cursor.text_anchor.to_offset(&completion_buffer)
1266 {
1267 let completion_text = &completion.text[prefix_len..completion.text.len() - suffix_len];
1268 if completion_text.trim().is_empty() {
1269 None
1270 } else {
1271 Some(completion_text)
1272 }
1273 } else {
1274 None
1275 }
1276 }
1277
1278 fn cycle_completions(&mut self, direction: Direction) {
1279 match direction {
1280 Direction::Prev => {
1281 self.active_completion_index = if self.active_completion_index == 0 {
1282 self.completions.len().saturating_sub(1)
1283 } else {
1284 self.active_completion_index - 1
1285 };
1286 }
1287 Direction::Next => {
1288 if self.completions.len() == 0 {
1289 self.active_completion_index = 0
1290 } else {
1291 self.active_completion_index =
1292 (self.active_completion_index + 1) % self.completions.len();
1293 }
1294 }
1295 }
1296 }
1297
1298 fn push_completion(&mut self, new_completion: copilot::Completion) {
1299 for completion in &self.completions {
1300 if completion.text == new_completion.text && completion.range == new_completion.range {
1301 return;
1302 }
1303 }
1304 self.completions.push(new_completion);
1305 }
1306
1307 fn common_prefix<T1: Iterator<Item = char>, T2: Iterator<Item = char>>(a: T1, b: T2) -> usize {
1308 a.zip(b)
1309 .take_while(|(a, b)| a == b)
1310 .map(|(a, _)| a.len_utf8())
1311 .sum()
1312 }
1313}
1314
1315#[derive(Debug)]
1316struct ActiveDiagnosticGroup {
1317 primary_range: Range<Anchor>,
1318 primary_message: String,
1319 blocks: HashMap<BlockId, Diagnostic>,
1320 is_valid: bool,
1321}
1322
1323#[derive(Serialize, Deserialize)]
1324pub struct ClipboardSelection {
1325 pub len: usize,
1326 pub is_entire_line: bool,
1327 pub first_line_indent: u32,
1328}
1329
1330#[derive(Debug)]
1331pub(crate) struct NavigationData {
1332 cursor_anchor: Anchor,
1333 cursor_position: Point,
1334 scroll_anchor: ScrollAnchor,
1335 scroll_top_row: u32,
1336}
1337
1338enum GotoDefinitionKind {
1339 Symbol,
1340 Type,
1341}
1342
1343#[derive(Debug, Clone)]
1344enum InlayHintRefreshReason {
1345 Toggle(bool),
1346 SettingsChange(InlayHintSettings),
1347 NewLinesShown,
1348 BufferEdited(HashSet<Arc<Language>>),
1349 RefreshRequested,
1350 ExcerptsRemoved(Vec<ExcerptId>),
1351}
1352impl InlayHintRefreshReason {
1353 fn description(&self) -> &'static str {
1354 match self {
1355 Self::Toggle(_) => "toggle",
1356 Self::SettingsChange(_) => "settings change",
1357 Self::NewLinesShown => "new lines shown",
1358 Self::BufferEdited(_) => "buffer edited",
1359 Self::RefreshRequested => "refresh requested",
1360 Self::ExcerptsRemoved(_) => "excerpts removed",
1361 }
1362 }
1363}
1364
1365impl Editor {
1366 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1367 let buffer = cx.new_model(|cx| {
1368 Buffer::new(
1369 0,
1370 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1371 String::new(),
1372 )
1373 });
1374 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1375 Self::new(EditorMode::SingleLine, buffer, None, cx)
1376 }
1377
1378 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1379 let buffer = cx.new_model(|cx| {
1380 Buffer::new(
1381 0,
1382 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1383 String::new(),
1384 )
1385 });
1386 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1387 Self::new(EditorMode::Full, buffer, None, cx)
1388 }
1389
1390 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1391 let buffer = cx.new_model(|cx| {
1392 Buffer::new(
1393 0,
1394 BufferId::new(cx.entity_id().as_u64()).unwrap(),
1395 String::new(),
1396 )
1397 });
1398 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1399 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1400 }
1401
1402 pub fn for_buffer(
1403 buffer: Model<Buffer>,
1404 project: Option<Model<Project>>,
1405 cx: &mut ViewContext<Self>,
1406 ) -> Self {
1407 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1408 Self::new(EditorMode::Full, buffer, project, cx)
1409 }
1410
1411 pub fn for_multibuffer(
1412 buffer: Model<MultiBuffer>,
1413 project: Option<Model<Project>>,
1414 cx: &mut ViewContext<Self>,
1415 ) -> Self {
1416 Self::new(EditorMode::Full, buffer, project, cx)
1417 }
1418
1419 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1420 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1421 self.display_map.update(cx, |display_map, cx| {
1422 let snapshot = display_map.snapshot(cx);
1423 clone.display_map.update(cx, |display_map, cx| {
1424 display_map.set_state(&snapshot, cx);
1425 });
1426 });
1427 clone.selections.clone_state(&self.selections);
1428 clone.scroll_manager.clone_state(&self.scroll_manager);
1429 clone.searchable = self.searchable;
1430 clone
1431 }
1432
1433 fn new(
1434 mode: EditorMode,
1435 buffer: Model<MultiBuffer>,
1436 project: Option<Model<Project>>,
1437 cx: &mut ViewContext<Self>,
1438 ) -> Self {
1439 let style = cx.text_style();
1440 let font_size = style.font_size.to_pixels(cx.rem_size());
1441 let display_map = cx.new_model(|cx| {
1442 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1443 });
1444
1445 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1446
1447 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1448
1449 let soft_wrap_mode_override =
1450 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::None);
1451
1452 let mut project_subscriptions = Vec::new();
1453 if mode == EditorMode::Full {
1454 if let Some(project) = project.as_ref() {
1455 if buffer.read(cx).is_singleton() {
1456 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1457 cx.emit(EditorEvent::TitleChanged);
1458 }));
1459 }
1460 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1461 if let project::Event::RefreshInlayHints = event {
1462 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1463 };
1464 }));
1465 }
1466 }
1467
1468 let inlay_hint_settings = inlay_hint_settings(
1469 selections.newest_anchor().head(),
1470 &buffer.read(cx).snapshot(cx),
1471 cx,
1472 );
1473
1474 let focus_handle = cx.focus_handle();
1475 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1476 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1477
1478 let mut this = Self {
1479 handle: cx.view().downgrade(),
1480 focus_handle,
1481 buffer: buffer.clone(),
1482 display_map: display_map.clone(),
1483 selections,
1484 scroll_manager: ScrollManager::new(cx),
1485 columnar_selection_tail: None,
1486 add_selections_state: None,
1487 select_next_state: None,
1488 select_prev_state: None,
1489 selection_history: Default::default(),
1490 autoclose_regions: Default::default(),
1491 snippet_stack: Default::default(),
1492 select_larger_syntax_node_stack: Vec::new(),
1493 ime_transaction: Default::default(),
1494 active_diagnostics: None,
1495 soft_wrap_mode_override,
1496 completion_provider: project.clone().map(|project| Box::new(project) as _),
1497 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1498 project,
1499 blink_manager: blink_manager.clone(),
1500 show_local_selections: true,
1501 mode,
1502 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1503 show_gutter: mode == EditorMode::Full,
1504 show_wrap_guides: None,
1505 placeholder_text: None,
1506 highlighted_rows: None,
1507 background_highlights: Default::default(),
1508 inlay_background_highlights: Default::default(),
1509 nav_history: None,
1510 context_menu: RwLock::new(None),
1511 mouse_context_menu: None,
1512 completion_tasks: Default::default(),
1513 next_completion_id: 0,
1514 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1515 next_inlay_id: 0,
1516 available_code_actions: Default::default(),
1517 code_actions_task: Default::default(),
1518 document_highlights_task: Default::default(),
1519 pending_rename: Default::default(),
1520 searchable: true,
1521 cursor_shape: Default::default(),
1522 autoindent_mode: Some(AutoindentMode::EachLine),
1523 collapse_matches: false,
1524 workspace: None,
1525 keymap_context_layers: Default::default(),
1526 input_enabled: true,
1527 use_modal_editing: mode == EditorMode::Full,
1528 read_only: false,
1529 use_autoclose: true,
1530 leader_peer_id: None,
1531 remote_id: None,
1532 hover_state: Default::default(),
1533 hovered_link_state: Default::default(),
1534 copilot_state: Default::default(),
1535 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1536 gutter_hovered: false,
1537 pixel_position_of_newest_cursor: None,
1538 gutter_width: Default::default(),
1539 style: None,
1540 show_cursor_names: false,
1541 hovered_cursors: Default::default(),
1542 editor_actions: Default::default(),
1543 show_copilot_suggestions: mode == EditorMode::Full,
1544 custom_context_menu: None,
1545 _subscriptions: vec![
1546 cx.observe(&buffer, Self::on_buffer_changed),
1547 cx.subscribe(&buffer, Self::on_buffer_event),
1548 cx.observe(&display_map, Self::on_display_map_changed),
1549 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1550 cx.observe_global::<SettingsStore>(Self::settings_changed),
1551 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1552 cx.observe_window_activation(|editor, cx| {
1553 let active = cx.is_window_active();
1554 editor.blink_manager.update(cx, |blink_manager, cx| {
1555 if active {
1556 blink_manager.enable(cx);
1557 } else {
1558 blink_manager.show_cursor(cx);
1559 blink_manager.disable(cx);
1560 }
1561 });
1562 }),
1563 ],
1564 };
1565
1566 this._subscriptions.extend(project_subscriptions);
1567
1568 this.end_selection(cx);
1569 this.scroll_manager.show_scrollbar(cx);
1570
1571 if mode == EditorMode::Full {
1572 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1573 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1574 }
1575
1576 this.report_editor_event("open", None, cx);
1577 this
1578 }
1579
1580 fn key_context(&self, cx: &AppContext) -> KeyContext {
1581 let mut key_context = KeyContext::default();
1582 key_context.add("Editor");
1583 let mode = match self.mode {
1584 EditorMode::SingleLine => "single_line",
1585 EditorMode::AutoHeight { .. } => "auto_height",
1586 EditorMode::Full => "full",
1587 };
1588 key_context.set("mode", mode);
1589 if self.pending_rename.is_some() {
1590 key_context.add("renaming");
1591 }
1592 if self.context_menu_visible() {
1593 match self.context_menu.read().as_ref() {
1594 Some(ContextMenu::Completions(_)) => {
1595 key_context.add("menu");
1596 key_context.add("showing_completions")
1597 }
1598 Some(ContextMenu::CodeActions(_)) => {
1599 key_context.add("menu");
1600 key_context.add("showing_code_actions")
1601 }
1602 None => {}
1603 }
1604 }
1605
1606 for layer in self.keymap_context_layers.values() {
1607 key_context.extend(layer);
1608 }
1609
1610 if let Some(extension) = self
1611 .buffer
1612 .read(cx)
1613 .as_singleton()
1614 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1615 {
1616 key_context.set("extension", extension.to_string());
1617 }
1618
1619 key_context
1620 }
1621
1622 pub fn new_file(
1623 workspace: &mut Workspace,
1624 _: &workspace::NewFile,
1625 cx: &mut ViewContext<Workspace>,
1626 ) {
1627 let project = workspace.project().clone();
1628 if project.read(cx).is_remote() {
1629 cx.propagate();
1630 } else if let Some(buffer) = project
1631 .update(cx, |project, cx| project.create_buffer("", None, cx))
1632 .log_err()
1633 {
1634 workspace.add_item(
1635 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1636 cx,
1637 );
1638 }
1639 }
1640
1641 pub fn new_file_in_direction(
1642 workspace: &mut Workspace,
1643 action: &workspace::NewFileInDirection,
1644 cx: &mut ViewContext<Workspace>,
1645 ) {
1646 let project = workspace.project().clone();
1647 if project.read(cx).is_remote() {
1648 cx.propagate();
1649 } else if let Some(buffer) = project
1650 .update(cx, |project, cx| project.create_buffer("", None, cx))
1651 .log_err()
1652 {
1653 workspace.split_item(
1654 action.0,
1655 Box::new(cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx))),
1656 cx,
1657 );
1658 }
1659 }
1660
1661 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1662 self.buffer.read(cx).replica_id()
1663 }
1664
1665 pub fn leader_peer_id(&self) -> Option<PeerId> {
1666 self.leader_peer_id
1667 }
1668
1669 pub fn buffer(&self) -> &Model<MultiBuffer> {
1670 &self.buffer
1671 }
1672
1673 pub fn workspace(&self) -> Option<View<Workspace>> {
1674 self.workspace.as_ref()?.0.upgrade()
1675 }
1676
1677 pub fn pane(&self, cx: &AppContext) -> Option<View<Pane>> {
1678 self.workspace()?.read(cx).pane_for(&self.handle.upgrade()?)
1679 }
1680
1681 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1682 self.buffer().read(cx).title(cx)
1683 }
1684
1685 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1686 EditorSnapshot {
1687 mode: self.mode,
1688 show_gutter: self.show_gutter,
1689 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1690 scroll_anchor: self.scroll_manager.anchor(),
1691 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1692 placeholder_text: self.placeholder_text.clone(),
1693 is_focused: self.focus_handle.is_focused(cx),
1694 }
1695 }
1696
1697 pub fn language_at<'a, T: ToOffset>(
1698 &self,
1699 point: T,
1700 cx: &'a AppContext,
1701 ) -> Option<Arc<Language>> {
1702 self.buffer.read(cx).language_at(point, cx)
1703 }
1704
1705 pub fn file_at<'a, T: ToOffset>(
1706 &self,
1707 point: T,
1708 cx: &'a AppContext,
1709 ) -> Option<Arc<dyn language::File>> {
1710 self.buffer.read(cx).read(cx).file_at(point).cloned()
1711 }
1712
1713 pub fn active_excerpt(
1714 &self,
1715 cx: &AppContext,
1716 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1717 self.buffer
1718 .read(cx)
1719 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1720 }
1721
1722 pub fn mode(&self) -> EditorMode {
1723 self.mode
1724 }
1725
1726 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1727 self.collaboration_hub.as_deref()
1728 }
1729
1730 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1731 self.collaboration_hub = Some(hub);
1732 }
1733
1734 pub fn set_custom_context_menu(
1735 &mut self,
1736 f: impl 'static
1737 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1738 ) {
1739 self.custom_context_menu = Some(Box::new(f))
1740 }
1741
1742 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1743 self.completion_provider = Some(hub);
1744 }
1745
1746 pub fn placeholder_text(&self) -> Option<&str> {
1747 self.placeholder_text.as_deref()
1748 }
1749
1750 pub fn set_placeholder_text(
1751 &mut self,
1752 placeholder_text: impl Into<Arc<str>>,
1753 cx: &mut ViewContext<Self>,
1754 ) {
1755 let placeholder_text = Some(placeholder_text.into());
1756 if self.placeholder_text != placeholder_text {
1757 self.placeholder_text = placeholder_text;
1758 cx.notify();
1759 }
1760 }
1761
1762 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1763 self.cursor_shape = cursor_shape;
1764 cx.notify();
1765 }
1766
1767 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1768 self.collapse_matches = collapse_matches;
1769 }
1770
1771 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1772 if self.collapse_matches {
1773 return range.start..range.start;
1774 }
1775 range.clone()
1776 }
1777
1778 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1779 if self.display_map.read(cx).clip_at_line_ends != clip {
1780 self.display_map
1781 .update(cx, |map, _| map.clip_at_line_ends = clip);
1782 }
1783 }
1784
1785 pub fn set_keymap_context_layer<Tag: 'static>(
1786 &mut self,
1787 context: KeyContext,
1788 cx: &mut ViewContext<Self>,
1789 ) {
1790 self.keymap_context_layers
1791 .insert(TypeId::of::<Tag>(), context);
1792 cx.notify();
1793 }
1794
1795 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1796 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1797 cx.notify();
1798 }
1799
1800 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1801 self.input_enabled = input_enabled;
1802 }
1803
1804 pub fn set_autoindent(&mut self, autoindent: bool) {
1805 if autoindent {
1806 self.autoindent_mode = Some(AutoindentMode::EachLine);
1807 } else {
1808 self.autoindent_mode = None;
1809 }
1810 }
1811
1812 pub fn read_only(&self, cx: &AppContext) -> bool {
1813 self.read_only || self.buffer.read(cx).read_only()
1814 }
1815
1816 pub fn set_read_only(&mut self, read_only: bool) {
1817 self.read_only = read_only;
1818 }
1819
1820 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1821 self.use_autoclose = autoclose;
1822 }
1823
1824 pub fn set_show_copilot_suggestions(&mut self, show_copilot_suggestions: bool) {
1825 self.show_copilot_suggestions = show_copilot_suggestions;
1826 }
1827
1828 pub fn set_use_modal_editing(&mut self, to: bool) {
1829 self.use_modal_editing = to;
1830 }
1831
1832 pub fn use_modal_editing(&self) -> bool {
1833 self.use_modal_editing
1834 }
1835
1836 fn selections_did_change(
1837 &mut self,
1838 local: bool,
1839 old_cursor_position: &Anchor,
1840 cx: &mut ViewContext<Self>,
1841 ) {
1842 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1843 self.buffer.update(cx, |buffer, cx| {
1844 buffer.set_active_selections(
1845 &self.selections.disjoint_anchors(),
1846 self.selections.line_mode,
1847 self.cursor_shape,
1848 cx,
1849 )
1850 });
1851 }
1852
1853 let display_map = self
1854 .display_map
1855 .update(cx, |display_map, cx| display_map.snapshot(cx));
1856 let buffer = &display_map.buffer_snapshot;
1857 self.add_selections_state = None;
1858 self.select_next_state = None;
1859 self.select_prev_state = None;
1860 self.select_larger_syntax_node_stack.clear();
1861 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1862 self.snippet_stack
1863 .invalidate(&self.selections.disjoint_anchors(), buffer);
1864 self.take_rename(false, cx);
1865
1866 let new_cursor_position = self.selections.newest_anchor().head();
1867
1868 self.push_to_nav_history(
1869 old_cursor_position.clone(),
1870 Some(new_cursor_position.to_point(buffer)),
1871 cx,
1872 );
1873
1874 if local {
1875 let new_cursor_position = self.selections.newest_anchor().head();
1876 let mut context_menu = self.context_menu.write();
1877 let completion_menu = match context_menu.as_ref() {
1878 Some(ContextMenu::Completions(menu)) => Some(menu),
1879
1880 _ => {
1881 *context_menu = None;
1882 None
1883 }
1884 };
1885
1886 if let Some(completion_menu) = completion_menu {
1887 let cursor_position = new_cursor_position.to_offset(buffer);
1888 let (word_range, kind) =
1889 buffer.surrounding_word(completion_menu.initial_position.clone());
1890 if kind == Some(CharKind::Word)
1891 && word_range.to_inclusive().contains(&cursor_position)
1892 {
1893 let mut completion_menu = completion_menu.clone();
1894 drop(context_menu);
1895
1896 let query = Self::completion_query(buffer, cursor_position);
1897 cx.spawn(move |this, mut cx| async move {
1898 completion_menu
1899 .filter(query.as_deref(), cx.background_executor().clone())
1900 .await;
1901
1902 this.update(&mut cx, |this, cx| {
1903 let mut context_menu = this.context_menu.write();
1904 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1905 return;
1906 };
1907
1908 if menu.id > completion_menu.id {
1909 return;
1910 }
1911
1912 *context_menu = Some(ContextMenu::Completions(completion_menu));
1913 drop(context_menu);
1914 cx.notify();
1915 })
1916 })
1917 .detach();
1918
1919 self.show_completions(&ShowCompletions, cx);
1920 } else {
1921 drop(context_menu);
1922 self.hide_context_menu(cx);
1923 }
1924 } else {
1925 drop(context_menu);
1926 }
1927
1928 hide_hover(self, cx);
1929
1930 if old_cursor_position.to_display_point(&display_map).row()
1931 != new_cursor_position.to_display_point(&display_map).row()
1932 {
1933 self.available_code_actions.take();
1934 }
1935 self.refresh_code_actions(cx);
1936 self.refresh_document_highlights(cx);
1937 refresh_matching_bracket_highlights(self, cx);
1938 self.discard_copilot_suggestion(cx);
1939 }
1940
1941 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1942 cx.emit(EditorEvent::SelectionsChanged { local });
1943
1944 if self.selections.disjoint_anchors().len() == 1 {
1945 cx.emit(SearchEvent::ActiveMatchChanged)
1946 }
1947
1948 cx.notify();
1949 }
1950
1951 pub fn change_selections<R>(
1952 &mut self,
1953 autoscroll: Option<Autoscroll>,
1954 cx: &mut ViewContext<Self>,
1955 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1956 ) -> R {
1957 let old_cursor_position = self.selections.newest_anchor().head();
1958 self.push_to_selection_history();
1959
1960 let (changed, result) = self.selections.change_with(cx, change);
1961
1962 if changed {
1963 if let Some(autoscroll) = autoscroll {
1964 self.request_autoscroll(autoscroll, cx);
1965 }
1966 self.selections_did_change(true, &old_cursor_position, cx);
1967 }
1968
1969 result
1970 }
1971
1972 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1973 where
1974 I: IntoIterator<Item = (Range<S>, T)>,
1975 S: ToOffset,
1976 T: Into<Arc<str>>,
1977 {
1978 if self.read_only(cx) {
1979 return;
1980 }
1981
1982 self.buffer
1983 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
1984 }
1985
1986 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
1987 where
1988 I: IntoIterator<Item = (Range<S>, T)>,
1989 S: ToOffset,
1990 T: Into<Arc<str>>,
1991 {
1992 if self.read_only(cx) {
1993 return;
1994 }
1995
1996 self.buffer.update(cx, |buffer, cx| {
1997 buffer.edit(edits, self.autoindent_mode.clone(), cx)
1998 });
1999 }
2000
2001 pub fn edit_with_block_indent<I, S, T>(
2002 &mut self,
2003 edits: I,
2004 original_indent_columns: Vec<u32>,
2005 cx: &mut ViewContext<Self>,
2006 ) where
2007 I: IntoIterator<Item = (Range<S>, T)>,
2008 S: ToOffset,
2009 T: Into<Arc<str>>,
2010 {
2011 if self.read_only(cx) {
2012 return;
2013 }
2014
2015 self.buffer.update(cx, |buffer, cx| {
2016 buffer.edit(
2017 edits,
2018 Some(AutoindentMode::Block {
2019 original_indent_columns,
2020 }),
2021 cx,
2022 )
2023 });
2024 }
2025
2026 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2027 self.hide_context_menu(cx);
2028
2029 match phase {
2030 SelectPhase::Begin {
2031 position,
2032 add,
2033 click_count,
2034 } => self.begin_selection(position, add, click_count, cx),
2035 SelectPhase::BeginColumnar {
2036 position,
2037 goal_column,
2038 } => self.begin_columnar_selection(position, goal_column, cx),
2039 SelectPhase::Extend {
2040 position,
2041 click_count,
2042 } => self.extend_selection(position, click_count, cx),
2043 SelectPhase::Update {
2044 position,
2045 goal_column,
2046 scroll_delta,
2047 } => self.update_selection(position, goal_column, scroll_delta, cx),
2048 SelectPhase::End => self.end_selection(cx),
2049 }
2050 }
2051
2052 fn extend_selection(
2053 &mut self,
2054 position: DisplayPoint,
2055 click_count: usize,
2056 cx: &mut ViewContext<Self>,
2057 ) {
2058 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2059 let tail = self.selections.newest::<usize>(cx).tail();
2060 self.begin_selection(position, false, click_count, cx);
2061
2062 let position = position.to_offset(&display_map, Bias::Left);
2063 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2064
2065 let mut pending_selection = self
2066 .selections
2067 .pending_anchor()
2068 .expect("extend_selection not called with pending selection");
2069 if position >= tail {
2070 pending_selection.start = tail_anchor;
2071 } else {
2072 pending_selection.end = tail_anchor;
2073 pending_selection.reversed = true;
2074 }
2075
2076 let mut pending_mode = self.selections.pending_mode().unwrap();
2077 match &mut pending_mode {
2078 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2079 _ => {}
2080 }
2081
2082 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2083 s.set_pending(pending_selection, pending_mode)
2084 });
2085 }
2086
2087 fn begin_selection(
2088 &mut self,
2089 position: DisplayPoint,
2090 add: bool,
2091 click_count: usize,
2092 cx: &mut ViewContext<Self>,
2093 ) {
2094 if !self.focus_handle.is_focused(cx) {
2095 cx.focus(&self.focus_handle);
2096 }
2097
2098 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2099 let buffer = &display_map.buffer_snapshot;
2100 let newest_selection = self.selections.newest_anchor().clone();
2101 let position = display_map.clip_point(position, Bias::Left);
2102
2103 let start;
2104 let end;
2105 let mode;
2106 let auto_scroll;
2107 match click_count {
2108 1 => {
2109 start = buffer.anchor_before(position.to_point(&display_map));
2110 end = start.clone();
2111 mode = SelectMode::Character;
2112 auto_scroll = true;
2113 }
2114 2 => {
2115 let range = movement::surrounding_word(&display_map, position);
2116 start = buffer.anchor_before(range.start.to_point(&display_map));
2117 end = buffer.anchor_before(range.end.to_point(&display_map));
2118 mode = SelectMode::Word(start.clone()..end.clone());
2119 auto_scroll = true;
2120 }
2121 3 => {
2122 let position = display_map
2123 .clip_point(position, Bias::Left)
2124 .to_point(&display_map);
2125 let line_start = display_map.prev_line_boundary(position).0;
2126 let next_line_start = buffer.clip_point(
2127 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2128 Bias::Left,
2129 );
2130 start = buffer.anchor_before(line_start);
2131 end = buffer.anchor_before(next_line_start);
2132 mode = SelectMode::Line(start.clone()..end.clone());
2133 auto_scroll = true;
2134 }
2135 _ => {
2136 start = buffer.anchor_before(0);
2137 end = buffer.anchor_before(buffer.len());
2138 mode = SelectMode::All;
2139 auto_scroll = false;
2140 }
2141 }
2142
2143 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2144 if !add {
2145 s.clear_disjoint();
2146 } else if click_count > 1 {
2147 s.delete(newest_selection.id)
2148 }
2149
2150 s.set_pending_anchor_range(start..end, mode);
2151 });
2152 }
2153
2154 fn begin_columnar_selection(
2155 &mut self,
2156 position: DisplayPoint,
2157 goal_column: u32,
2158 cx: &mut ViewContext<Self>,
2159 ) {
2160 if !self.focus_handle.is_focused(cx) {
2161 cx.focus(&self.focus_handle);
2162 }
2163
2164 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2165 let tail = self.selections.newest::<Point>(cx).tail();
2166 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2167
2168 self.select_columns(
2169 tail.to_display_point(&display_map),
2170 position,
2171 goal_column,
2172 &display_map,
2173 cx,
2174 );
2175 }
2176
2177 fn update_selection(
2178 &mut self,
2179 position: DisplayPoint,
2180 goal_column: u32,
2181 scroll_delta: gpui::Point<f32>,
2182 cx: &mut ViewContext<Self>,
2183 ) {
2184 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2185
2186 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2187 let tail = tail.to_display_point(&display_map);
2188 self.select_columns(tail, position, goal_column, &display_map, cx);
2189 } else if let Some(mut pending) = self.selections.pending_anchor() {
2190 let buffer = self.buffer.read(cx).snapshot(cx);
2191 let head;
2192 let tail;
2193 let mode = self.selections.pending_mode().unwrap();
2194 match &mode {
2195 SelectMode::Character => {
2196 head = position.to_point(&display_map);
2197 tail = pending.tail().to_point(&buffer);
2198 }
2199 SelectMode::Word(original_range) => {
2200 let original_display_range = original_range.start.to_display_point(&display_map)
2201 ..original_range.end.to_display_point(&display_map);
2202 let original_buffer_range = original_display_range.start.to_point(&display_map)
2203 ..original_display_range.end.to_point(&display_map);
2204 if movement::is_inside_word(&display_map, position)
2205 || original_display_range.contains(&position)
2206 {
2207 let word_range = movement::surrounding_word(&display_map, position);
2208 if word_range.start < original_display_range.start {
2209 head = word_range.start.to_point(&display_map);
2210 } else {
2211 head = word_range.end.to_point(&display_map);
2212 }
2213 } else {
2214 head = position.to_point(&display_map);
2215 }
2216
2217 if head <= original_buffer_range.start {
2218 tail = original_buffer_range.end;
2219 } else {
2220 tail = original_buffer_range.start;
2221 }
2222 }
2223 SelectMode::Line(original_range) => {
2224 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2225
2226 let position = display_map
2227 .clip_point(position, Bias::Left)
2228 .to_point(&display_map);
2229 let line_start = display_map.prev_line_boundary(position).0;
2230 let next_line_start = buffer.clip_point(
2231 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2232 Bias::Left,
2233 );
2234
2235 if line_start < original_range.start {
2236 head = line_start
2237 } else {
2238 head = next_line_start
2239 }
2240
2241 if head <= original_range.start {
2242 tail = original_range.end;
2243 } else {
2244 tail = original_range.start;
2245 }
2246 }
2247 SelectMode::All => {
2248 return;
2249 }
2250 };
2251
2252 if head < tail {
2253 pending.start = buffer.anchor_before(head);
2254 pending.end = buffer.anchor_before(tail);
2255 pending.reversed = true;
2256 } else {
2257 pending.start = buffer.anchor_before(tail);
2258 pending.end = buffer.anchor_before(head);
2259 pending.reversed = false;
2260 }
2261
2262 self.change_selections(None, cx, |s| {
2263 s.set_pending(pending, mode);
2264 });
2265 } else {
2266 log::error!("update_selection dispatched with no pending selection");
2267 return;
2268 }
2269
2270 self.apply_scroll_delta(scroll_delta, cx);
2271 cx.notify();
2272 }
2273
2274 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2275 self.columnar_selection_tail.take();
2276 if self.selections.pending_anchor().is_some() {
2277 let selections = self.selections.all::<usize>(cx);
2278 self.change_selections(None, cx, |s| {
2279 s.select(selections);
2280 s.clear_pending();
2281 });
2282 }
2283 }
2284
2285 fn select_columns(
2286 &mut self,
2287 tail: DisplayPoint,
2288 head: DisplayPoint,
2289 goal_column: u32,
2290 display_map: &DisplaySnapshot,
2291 cx: &mut ViewContext<Self>,
2292 ) {
2293 let start_row = cmp::min(tail.row(), head.row());
2294 let end_row = cmp::max(tail.row(), head.row());
2295 let start_column = cmp::min(tail.column(), goal_column);
2296 let end_column = cmp::max(tail.column(), goal_column);
2297 let reversed = start_column < tail.column();
2298
2299 let selection_ranges = (start_row..=end_row)
2300 .filter_map(|row| {
2301 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2302 let start = display_map
2303 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2304 .to_point(display_map);
2305 let end = display_map
2306 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2307 .to_point(display_map);
2308 if reversed {
2309 Some(end..start)
2310 } else {
2311 Some(start..end)
2312 }
2313 } else {
2314 None
2315 }
2316 })
2317 .collect::<Vec<_>>();
2318
2319 self.change_selections(None, cx, |s| {
2320 s.select_ranges(selection_ranges);
2321 });
2322 cx.notify();
2323 }
2324
2325 pub fn has_pending_nonempty_selection(&self) -> bool {
2326 let pending_nonempty_selection = match self.selections.pending_anchor() {
2327 Some(Selection { start, end, .. }) => start != end,
2328 None => false,
2329 };
2330 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2331 }
2332
2333 pub fn has_pending_selection(&self) -> bool {
2334 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2335 }
2336
2337 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2338 if self.take_rename(false, cx).is_some() {
2339 return;
2340 }
2341
2342 if hide_hover(self, cx) {
2343 return;
2344 }
2345
2346 if self.hide_context_menu(cx).is_some() {
2347 return;
2348 }
2349
2350 if self.discard_copilot_suggestion(cx) {
2351 return;
2352 }
2353
2354 if self.snippet_stack.pop().is_some() {
2355 return;
2356 }
2357
2358 if self.mode == EditorMode::Full {
2359 if self.active_diagnostics.is_some() {
2360 self.dismiss_diagnostics(cx);
2361 return;
2362 }
2363
2364 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2365 return;
2366 }
2367 }
2368
2369 cx.propagate();
2370 }
2371
2372 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2373 let text: Arc<str> = text.into();
2374
2375 if self.read_only(cx) {
2376 return;
2377 }
2378
2379 let selections = self.selections.all_adjusted(cx);
2380 let mut brace_inserted = false;
2381 let mut edits = Vec::new();
2382 let mut new_selections = Vec::with_capacity(selections.len());
2383 let mut new_autoclose_regions = Vec::new();
2384 let snapshot = self.buffer.read(cx).read(cx);
2385
2386 for (selection, autoclose_region) in
2387 self.selections_with_autoclose_regions(selections, &snapshot)
2388 {
2389 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2390 // Determine if the inserted text matches the opening or closing
2391 // bracket of any of this language's bracket pairs.
2392 let mut bracket_pair = None;
2393 let mut is_bracket_pair_start = false;
2394 if !text.is_empty() {
2395 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2396 // and they are removing the character that triggered IME popup.
2397 for (pair, enabled) in scope.brackets() {
2398 if enabled && pair.close && pair.start.ends_with(text.as_ref()) {
2399 bracket_pair = Some(pair.clone());
2400 is_bracket_pair_start = true;
2401 break;
2402 } else if pair.end.as_str() == text.as_ref() {
2403 bracket_pair = Some(pair.clone());
2404 break;
2405 }
2406 }
2407 }
2408
2409 if let Some(bracket_pair) = bracket_pair {
2410 if selection.is_empty() {
2411 if is_bracket_pair_start {
2412 let prefix_len = bracket_pair.start.len() - text.len();
2413
2414 // If the inserted text is a suffix of an opening bracket and the
2415 // selection is preceded by the rest of the opening bracket, then
2416 // insert the closing bracket.
2417 let following_text_allows_autoclose = snapshot
2418 .chars_at(selection.start)
2419 .next()
2420 .map_or(true, |c| scope.should_autoclose_before(c));
2421 let preceding_text_matches_prefix = prefix_len == 0
2422 || (selection.start.column >= (prefix_len as u32)
2423 && snapshot.contains_str_at(
2424 Point::new(
2425 selection.start.row,
2426 selection.start.column - (prefix_len as u32),
2427 ),
2428 &bracket_pair.start[..prefix_len],
2429 ));
2430 let autoclose = self.use_autoclose
2431 && snapshot.settings_at(selection.start, cx).use_autoclose;
2432 if autoclose
2433 && following_text_allows_autoclose
2434 && preceding_text_matches_prefix
2435 {
2436 let anchor = snapshot.anchor_before(selection.end);
2437 new_selections.push((selection.map(|_| anchor), text.len()));
2438 new_autoclose_regions.push((
2439 anchor,
2440 text.len(),
2441 selection.id,
2442 bracket_pair.clone(),
2443 ));
2444 edits.push((
2445 selection.range(),
2446 format!("{}{}", text, bracket_pair.end).into(),
2447 ));
2448 brace_inserted = true;
2449 continue;
2450 }
2451 }
2452
2453 if let Some(region) = autoclose_region {
2454 // If the selection is followed by an auto-inserted closing bracket,
2455 // then don't insert that closing bracket again; just move the selection
2456 // past the closing bracket.
2457 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2458 && text.as_ref() == region.pair.end.as_str();
2459 if should_skip {
2460 let anchor = snapshot.anchor_after(selection.end);
2461 new_selections
2462 .push((selection.map(|_| anchor), region.pair.end.len()));
2463 continue;
2464 }
2465 }
2466 }
2467 // If an opening bracket is 1 character long and is typed while
2468 // text is selected, then surround that text with the bracket pair.
2469 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2470 edits.push((selection.start..selection.start, text.clone()));
2471 edits.push((
2472 selection.end..selection.end,
2473 bracket_pair.end.as_str().into(),
2474 ));
2475 brace_inserted = true;
2476 new_selections.push((
2477 Selection {
2478 id: selection.id,
2479 start: snapshot.anchor_after(selection.start),
2480 end: snapshot.anchor_before(selection.end),
2481 reversed: selection.reversed,
2482 goal: selection.goal,
2483 },
2484 0,
2485 ));
2486 continue;
2487 }
2488 }
2489 }
2490
2491 // If not handling any auto-close operation, then just replace the selected
2492 // text with the given input and move the selection to the end of the
2493 // newly inserted text.
2494 let anchor = snapshot.anchor_after(selection.end);
2495 new_selections.push((selection.map(|_| anchor), 0));
2496 edits.push((selection.start..selection.end, text.clone()));
2497 }
2498
2499 drop(snapshot);
2500 self.transact(cx, |this, cx| {
2501 this.buffer.update(cx, |buffer, cx| {
2502 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2503 });
2504
2505 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2506 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2507 let snapshot = this.buffer.read(cx).read(cx);
2508 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2509 .zip(new_selection_deltas)
2510 .map(|(selection, delta)| Selection {
2511 id: selection.id,
2512 start: selection.start + delta,
2513 end: selection.end + delta,
2514 reversed: selection.reversed,
2515 goal: SelectionGoal::None,
2516 })
2517 .collect::<Vec<_>>();
2518
2519 let mut i = 0;
2520 for (position, delta, selection_id, pair) in new_autoclose_regions {
2521 let position = position.to_offset(&snapshot) + delta;
2522 let start = snapshot.anchor_before(position);
2523 let end = snapshot.anchor_after(position);
2524 while let Some(existing_state) = this.autoclose_regions.get(i) {
2525 match existing_state.range.start.cmp(&start, &snapshot) {
2526 Ordering::Less => i += 1,
2527 Ordering::Greater => break,
2528 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2529 Ordering::Less => i += 1,
2530 Ordering::Equal => break,
2531 Ordering::Greater => break,
2532 },
2533 }
2534 }
2535 this.autoclose_regions.insert(
2536 i,
2537 AutocloseRegion {
2538 selection_id,
2539 range: start..end,
2540 pair,
2541 },
2542 );
2543 }
2544
2545 drop(snapshot);
2546 let had_active_copilot_suggestion = this.has_active_copilot_suggestion(cx);
2547 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2548
2549 if brace_inserted {
2550 // If we inserted a brace while composing text (i.e. typing `"` on a
2551 // Brazilian keyboard), exit the composing state because most likely
2552 // the user wanted to surround the selection.
2553 this.unmark_text(cx);
2554 } else if EditorSettings::get_global(cx).use_on_type_format {
2555 if let Some(on_type_format_task) =
2556 this.trigger_on_type_formatting(text.to_string(), cx)
2557 {
2558 on_type_format_task.detach_and_log_err(cx);
2559 }
2560 }
2561
2562 if had_active_copilot_suggestion {
2563 this.refresh_copilot_suggestions(true, cx);
2564 if !this.has_active_copilot_suggestion(cx) {
2565 this.trigger_completion_on_input(&text, cx);
2566 }
2567 } else {
2568 this.trigger_completion_on_input(&text, cx);
2569 this.refresh_copilot_suggestions(true, cx);
2570 }
2571 });
2572 }
2573
2574 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2575 self.transact(cx, |this, cx| {
2576 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2577 let selections = this.selections.all::<usize>(cx);
2578 let multi_buffer = this.buffer.read(cx);
2579 let buffer = multi_buffer.snapshot(cx);
2580 selections
2581 .iter()
2582 .map(|selection| {
2583 let start_point = selection.start.to_point(&buffer);
2584 let mut indent = buffer.indent_size_for_line(start_point.row);
2585 indent.len = cmp::min(indent.len, start_point.column);
2586 let start = selection.start;
2587 let end = selection.end;
2588 let is_cursor = start == end;
2589 let language_scope = buffer.language_scope_at(start);
2590 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2591 &language_scope
2592 {
2593 let leading_whitespace_len = buffer
2594 .reversed_chars_at(start)
2595 .take_while(|c| c.is_whitespace() && *c != '\n')
2596 .map(|c| c.len_utf8())
2597 .sum::<usize>();
2598
2599 let trailing_whitespace_len = buffer
2600 .chars_at(end)
2601 .take_while(|c| c.is_whitespace() && *c != '\n')
2602 .map(|c| c.len_utf8())
2603 .sum::<usize>();
2604
2605 let insert_extra_newline =
2606 language.brackets().any(|(pair, enabled)| {
2607 let pair_start = pair.start.trim_end();
2608 let pair_end = pair.end.trim_start();
2609
2610 enabled
2611 && pair.newline
2612 && buffer.contains_str_at(
2613 end + trailing_whitespace_len,
2614 pair_end,
2615 )
2616 && buffer.contains_str_at(
2617 (start - leading_whitespace_len)
2618 .saturating_sub(pair_start.len()),
2619 pair_start,
2620 )
2621 });
2622 // Comment extension on newline is allowed only for cursor selections
2623 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2624 let is_comment_extension_enabled =
2625 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2626 is_cursor && is_comment_extension_enabled
2627 });
2628 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2629 let max_len_of_delimiter =
2630 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2631 let (snapshot, range) =
2632 buffer.buffer_line_for_row(start_point.row)?;
2633
2634 let mut index_of_first_non_whitespace = 0;
2635 let comment_candidate = snapshot
2636 .chars_for_range(range)
2637 .skip_while(|c| {
2638 let should_skip = c.is_whitespace();
2639 if should_skip {
2640 index_of_first_non_whitespace += 1;
2641 }
2642 should_skip
2643 })
2644 .take(max_len_of_delimiter)
2645 .collect::<String>();
2646 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2647 comment_candidate.starts_with(comment_prefix.as_ref())
2648 })?;
2649 let cursor_is_placed_after_comment_marker =
2650 index_of_first_non_whitespace + comment_prefix.len()
2651 <= start_point.column as usize;
2652 if cursor_is_placed_after_comment_marker {
2653 Some(comment_prefix.clone())
2654 } else {
2655 None
2656 }
2657 };
2658 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2659 get_comment_delimiter(delimiters)
2660 } else {
2661 None
2662 };
2663 (comment_delimiter, insert_extra_newline)
2664 } else {
2665 (None, false)
2666 };
2667
2668 let capacity_for_delimiter = comment_delimiter
2669 .as_deref()
2670 .map(str::len)
2671 .unwrap_or_default();
2672 let mut new_text =
2673 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2674 new_text.push_str("\n");
2675 new_text.extend(indent.chars());
2676 if let Some(delimiter) = &comment_delimiter {
2677 new_text.push_str(&delimiter);
2678 }
2679 if insert_extra_newline {
2680 new_text = new_text.repeat(2);
2681 }
2682
2683 let anchor = buffer.anchor_after(end);
2684 let new_selection = selection.map(|_| anchor);
2685 (
2686 (start..end, new_text),
2687 (insert_extra_newline, new_selection),
2688 )
2689 })
2690 .unzip()
2691 };
2692
2693 this.edit_with_autoindent(edits, cx);
2694 let buffer = this.buffer.read(cx).snapshot(cx);
2695 let new_selections = selection_fixup_info
2696 .into_iter()
2697 .map(|(extra_newline_inserted, new_selection)| {
2698 let mut cursor = new_selection.end.to_point(&buffer);
2699 if extra_newline_inserted {
2700 cursor.row -= 1;
2701 cursor.column = buffer.line_len(cursor.row);
2702 }
2703 new_selection.map(|_| cursor)
2704 })
2705 .collect();
2706
2707 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2708 this.refresh_copilot_suggestions(true, cx);
2709 });
2710 }
2711
2712 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2713 let buffer = self.buffer.read(cx);
2714 let snapshot = buffer.snapshot(cx);
2715
2716 let mut edits = Vec::new();
2717 let mut rows = Vec::new();
2718 let mut rows_inserted = 0;
2719
2720 for selection in self.selections.all_adjusted(cx) {
2721 let cursor = selection.head();
2722 let row = cursor.row;
2723
2724 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2725
2726 let newline = "\n".to_string();
2727 edits.push((start_of_line..start_of_line, newline));
2728
2729 rows.push(row + rows_inserted);
2730 rows_inserted += 1;
2731 }
2732
2733 self.transact(cx, |editor, cx| {
2734 editor.edit(edits, cx);
2735
2736 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2737 let mut index = 0;
2738 s.move_cursors_with(|map, _, _| {
2739 let row = rows[index];
2740 index += 1;
2741
2742 let point = Point::new(row, 0);
2743 let boundary = map.next_line_boundary(point).1;
2744 let clipped = map.clip_point(boundary, Bias::Left);
2745
2746 (clipped, SelectionGoal::None)
2747 });
2748 });
2749
2750 let mut indent_edits = Vec::new();
2751 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2752 for row in rows {
2753 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2754 for (row, indent) in indents {
2755 if indent.len == 0 {
2756 continue;
2757 }
2758
2759 let text = match indent.kind {
2760 IndentKind::Space => " ".repeat(indent.len as usize),
2761 IndentKind::Tab => "\t".repeat(indent.len as usize),
2762 };
2763 let point = Point::new(row, 0);
2764 indent_edits.push((point..point, text));
2765 }
2766 }
2767 editor.edit(indent_edits, cx);
2768 });
2769 }
2770
2771 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2772 let buffer = self.buffer.read(cx);
2773 let snapshot = buffer.snapshot(cx);
2774
2775 let mut edits = Vec::new();
2776 let mut rows = Vec::new();
2777 let mut rows_inserted = 0;
2778
2779 for selection in self.selections.all_adjusted(cx) {
2780 let cursor = selection.head();
2781 let row = cursor.row;
2782
2783 let point = Point::new(row + 1, 0);
2784 let start_of_line = snapshot.clip_point(point, Bias::Left);
2785
2786 let newline = "\n".to_string();
2787 edits.push((start_of_line..start_of_line, newline));
2788
2789 rows_inserted += 1;
2790 rows.push(row + rows_inserted);
2791 }
2792
2793 self.transact(cx, |editor, cx| {
2794 editor.edit(edits, cx);
2795
2796 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2797 let mut index = 0;
2798 s.move_cursors_with(|map, _, _| {
2799 let row = rows[index];
2800 index += 1;
2801
2802 let point = Point::new(row, 0);
2803 let boundary = map.next_line_boundary(point).1;
2804 let clipped = map.clip_point(boundary, Bias::Left);
2805
2806 (clipped, SelectionGoal::None)
2807 });
2808 });
2809
2810 let mut indent_edits = Vec::new();
2811 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2812 for row in rows {
2813 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2814 for (row, indent) in indents {
2815 if indent.len == 0 {
2816 continue;
2817 }
2818
2819 let text = match indent.kind {
2820 IndentKind::Space => " ".repeat(indent.len as usize),
2821 IndentKind::Tab => "\t".repeat(indent.len as usize),
2822 };
2823 let point = Point::new(row, 0);
2824 indent_edits.push((point..point, text));
2825 }
2826 }
2827 editor.edit(indent_edits, cx);
2828 });
2829 }
2830
2831 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2832 self.insert_with_autoindent_mode(
2833 text,
2834 Some(AutoindentMode::Block {
2835 original_indent_columns: Vec::new(),
2836 }),
2837 cx,
2838 );
2839 }
2840
2841 fn insert_with_autoindent_mode(
2842 &mut self,
2843 text: &str,
2844 autoindent_mode: Option<AutoindentMode>,
2845 cx: &mut ViewContext<Self>,
2846 ) {
2847 if self.read_only(cx) {
2848 return;
2849 }
2850
2851 let text: Arc<str> = text.into();
2852 self.transact(cx, |this, cx| {
2853 let old_selections = this.selections.all_adjusted(cx);
2854 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
2855 let anchors = {
2856 let snapshot = buffer.read(cx);
2857 old_selections
2858 .iter()
2859 .map(|s| {
2860 let anchor = snapshot.anchor_after(s.head());
2861 s.map(|_| anchor)
2862 })
2863 .collect::<Vec<_>>()
2864 };
2865 buffer.edit(
2866 old_selections
2867 .iter()
2868 .map(|s| (s.start..s.end, text.clone())),
2869 autoindent_mode,
2870 cx,
2871 );
2872 anchors
2873 });
2874
2875 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
2876 s.select_anchors(selection_anchors);
2877 })
2878 });
2879 }
2880
2881 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2882 if !EditorSettings::get_global(cx).show_completions_on_input {
2883 return;
2884 }
2885
2886 let selection = self.selections.newest_anchor();
2887 if self
2888 .buffer
2889 .read(cx)
2890 .is_completion_trigger(selection.head(), text, cx)
2891 {
2892 self.show_completions(&ShowCompletions, cx);
2893 } else {
2894 self.hide_context_menu(cx);
2895 }
2896 }
2897
2898 /// If any empty selections is touching the start of its innermost containing autoclose
2899 /// region, expand it to select the brackets.
2900 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
2901 let selections = self.selections.all::<usize>(cx);
2902 let buffer = self.buffer.read(cx).read(cx);
2903 let mut new_selections = Vec::new();
2904 for (mut selection, region) in self.selections_with_autoclose_regions(selections, &buffer) {
2905 if let (Some(region), true) = (region, selection.is_empty()) {
2906 let mut range = region.range.to_offset(&buffer);
2907 if selection.start == range.start {
2908 if range.start >= region.pair.start.len() {
2909 range.start -= region.pair.start.len();
2910 if buffer.contains_str_at(range.start, ®ion.pair.start) {
2911 if buffer.contains_str_at(range.end, ®ion.pair.end) {
2912 range.end += region.pair.end.len();
2913 selection.start = range.start;
2914 selection.end = range.end;
2915 }
2916 }
2917 }
2918 }
2919 }
2920 new_selections.push(selection);
2921 }
2922
2923 drop(buffer);
2924 self.change_selections(None, cx, |selections| selections.select(new_selections));
2925 }
2926
2927 /// Iterate the given selections, and for each one, find the smallest surrounding
2928 /// autoclose region. This uses the ordering of the selections and the autoclose
2929 /// regions to avoid repeated comparisons.
2930 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
2931 &'a self,
2932 selections: impl IntoIterator<Item = Selection<D>>,
2933 buffer: &'a MultiBufferSnapshot,
2934 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
2935 let mut i = 0;
2936 let mut regions = self.autoclose_regions.as_slice();
2937 selections.into_iter().map(move |selection| {
2938 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
2939
2940 let mut enclosing = None;
2941 while let Some(pair_state) = regions.get(i) {
2942 if pair_state.range.end.to_offset(buffer) < range.start {
2943 regions = ®ions[i + 1..];
2944 i = 0;
2945 } else if pair_state.range.start.to_offset(buffer) > range.end {
2946 break;
2947 } else {
2948 if pair_state.selection_id == selection.id {
2949 enclosing = Some(pair_state);
2950 }
2951 i += 1;
2952 }
2953 }
2954
2955 (selection.clone(), enclosing)
2956 })
2957 }
2958
2959 /// Remove any autoclose regions that no longer contain their selection.
2960 fn invalidate_autoclose_regions(
2961 &mut self,
2962 mut selections: &[Selection<Anchor>],
2963 buffer: &MultiBufferSnapshot,
2964 ) {
2965 self.autoclose_regions.retain(|state| {
2966 let mut i = 0;
2967 while let Some(selection) = selections.get(i) {
2968 if selection.end.cmp(&state.range.start, buffer).is_lt() {
2969 selections = &selections[1..];
2970 continue;
2971 }
2972 if selection.start.cmp(&state.range.end, buffer).is_gt() {
2973 break;
2974 }
2975 if selection.id == state.selection_id {
2976 return true;
2977 } else {
2978 i += 1;
2979 }
2980 }
2981 false
2982 });
2983 }
2984
2985 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
2986 let offset = position.to_offset(buffer);
2987 let (word_range, kind) = buffer.surrounding_word(offset);
2988 if offset > word_range.start && kind == Some(CharKind::Word) {
2989 Some(
2990 buffer
2991 .text_for_range(word_range.start..offset)
2992 .collect::<String>(),
2993 )
2994 } else {
2995 None
2996 }
2997 }
2998
2999 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3000 self.refresh_inlay_hints(
3001 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3002 cx,
3003 );
3004 }
3005
3006 pub fn inlay_hints_enabled(&self) -> bool {
3007 self.inlay_hint_cache.enabled
3008 }
3009
3010 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3011 if self.project.is_none() || self.mode != EditorMode::Full {
3012 return;
3013 }
3014
3015 let reason_description = reason.description();
3016 let (invalidate_cache, required_languages) = match reason {
3017 InlayHintRefreshReason::Toggle(enabled) => {
3018 self.inlay_hint_cache.enabled = enabled;
3019 if enabled {
3020 (InvalidationStrategy::RefreshRequested, None)
3021 } else {
3022 self.inlay_hint_cache.clear();
3023 self.splice_inlay_hints(
3024 self.visible_inlay_hints(cx)
3025 .iter()
3026 .map(|inlay| inlay.id)
3027 .collect(),
3028 Vec::new(),
3029 cx,
3030 );
3031 return;
3032 }
3033 }
3034 InlayHintRefreshReason::SettingsChange(new_settings) => {
3035 match self.inlay_hint_cache.update_settings(
3036 &self.buffer,
3037 new_settings,
3038 self.visible_inlay_hints(cx),
3039 cx,
3040 ) {
3041 ControlFlow::Break(Some(InlaySplice {
3042 to_remove,
3043 to_insert,
3044 })) => {
3045 self.splice_inlay_hints(to_remove, to_insert, cx);
3046 return;
3047 }
3048 ControlFlow::Break(None) => return,
3049 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3050 }
3051 }
3052 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3053 if let Some(InlaySplice {
3054 to_remove,
3055 to_insert,
3056 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3057 {
3058 self.splice_inlay_hints(to_remove, to_insert, cx);
3059 }
3060 return;
3061 }
3062 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3063 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3064 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3065 }
3066 InlayHintRefreshReason::RefreshRequested => {
3067 (InvalidationStrategy::RefreshRequested, None)
3068 }
3069 };
3070
3071 if let Some(InlaySplice {
3072 to_remove,
3073 to_insert,
3074 }) = self.inlay_hint_cache.spawn_hint_refresh(
3075 reason_description,
3076 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3077 invalidate_cache,
3078 cx,
3079 ) {
3080 self.splice_inlay_hints(to_remove, to_insert, cx);
3081 }
3082 }
3083
3084 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3085 self.display_map
3086 .read(cx)
3087 .current_inlays()
3088 .filter(move |inlay| {
3089 Some(inlay.id) != self.copilot_state.suggestion.as_ref().map(|h| h.id)
3090 })
3091 .cloned()
3092 .collect()
3093 }
3094
3095 pub fn excerpts_for_inlay_hints_query(
3096 &self,
3097 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3098 cx: &mut ViewContext<Editor>,
3099 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3100 let Some(project) = self.project.as_ref() else {
3101 return HashMap::default();
3102 };
3103 let project = project.read(cx);
3104 let multi_buffer = self.buffer().read(cx);
3105 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3106 let multi_buffer_visible_start = self
3107 .scroll_manager
3108 .anchor()
3109 .anchor
3110 .to_point(&multi_buffer_snapshot);
3111 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3112 multi_buffer_visible_start
3113 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3114 Bias::Left,
3115 );
3116 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3117 multi_buffer
3118 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3119 .into_iter()
3120 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3121 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3122 let buffer = buffer_handle.read(cx);
3123 let buffer_file = project::worktree::File::from_dyn(buffer.file())?;
3124 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3125 let worktree_entry = buffer_worktree
3126 .read(cx)
3127 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3128 if worktree_entry.is_ignored {
3129 return None;
3130 }
3131
3132 let language = buffer.language()?;
3133 if let Some(restrict_to_languages) = restrict_to_languages {
3134 if !restrict_to_languages.contains(language) {
3135 return None;
3136 }
3137 }
3138 Some((
3139 excerpt_id,
3140 (
3141 buffer_handle,
3142 buffer.version().clone(),
3143 excerpt_visible_range,
3144 ),
3145 ))
3146 })
3147 .collect()
3148 }
3149
3150 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3151 TextLayoutDetails {
3152 text_system: cx.text_system().clone(),
3153 editor_style: self.style.clone().unwrap(),
3154 rem_size: cx.rem_size(),
3155 scroll_anchor: self.scroll_manager.anchor(),
3156 visible_rows: self.visible_line_count(),
3157 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3158 }
3159 }
3160
3161 fn splice_inlay_hints(
3162 &self,
3163 to_remove: Vec<InlayId>,
3164 to_insert: Vec<Inlay>,
3165 cx: &mut ViewContext<Self>,
3166 ) {
3167 self.display_map.update(cx, |display_map, cx| {
3168 display_map.splice_inlays(to_remove, to_insert, cx);
3169 });
3170 cx.notify();
3171 }
3172
3173 fn trigger_on_type_formatting(
3174 &self,
3175 input: String,
3176 cx: &mut ViewContext<Self>,
3177 ) -> Option<Task<Result<()>>> {
3178 if input.len() != 1 {
3179 return None;
3180 }
3181
3182 let project = self.project.as_ref()?;
3183 let position = self.selections.newest_anchor().head();
3184 let (buffer, buffer_position) = self
3185 .buffer
3186 .read(cx)
3187 .text_anchor_for_position(position.clone(), cx)?;
3188
3189 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3190 // hence we do LSP request & edit on host side only — add formats to host's history.
3191 let push_to_lsp_host_history = true;
3192 // If this is not the host, append its history with new edits.
3193 let push_to_client_history = project.read(cx).is_remote();
3194
3195 let on_type_formatting = project.update(cx, |project, cx| {
3196 project.on_type_format(
3197 buffer.clone(),
3198 buffer_position,
3199 input,
3200 push_to_lsp_host_history,
3201 cx,
3202 )
3203 });
3204 Some(cx.spawn(|editor, mut cx| async move {
3205 if let Some(transaction) = on_type_formatting.await? {
3206 if push_to_client_history {
3207 buffer
3208 .update(&mut cx, |buffer, _| {
3209 buffer.push_transaction(transaction, Instant::now());
3210 })
3211 .ok();
3212 }
3213 editor.update(&mut cx, |editor, cx| {
3214 editor.refresh_document_highlights(cx);
3215 })?;
3216 }
3217 Ok(())
3218 }))
3219 }
3220
3221 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3222 if self.pending_rename.is_some() {
3223 return;
3224 }
3225
3226 let Some(provider) = self.completion_provider.as_ref() else {
3227 return;
3228 };
3229
3230 let position = self.selections.newest_anchor().head();
3231 let (buffer, buffer_position) = if let Some(output) = self
3232 .buffer
3233 .read(cx)
3234 .text_anchor_for_position(position.clone(), cx)
3235 {
3236 output
3237 } else {
3238 return;
3239 };
3240
3241 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position.clone());
3242 let completions = provider.completions(&buffer, buffer_position, cx);
3243
3244 let id = post_inc(&mut self.next_completion_id);
3245 let task = cx.spawn(|this, mut cx| {
3246 async move {
3247 let completions = completions.await.log_err();
3248 let menu = if let Some(completions) = completions {
3249 let mut menu = CompletionsMenu {
3250 id,
3251 initial_position: position,
3252 match_candidates: completions
3253 .iter()
3254 .enumerate()
3255 .map(|(id, completion)| {
3256 StringMatchCandidate::new(
3257 id,
3258 completion.label.text[completion.label.filter_range.clone()]
3259 .into(),
3260 )
3261 })
3262 .collect(),
3263 buffer,
3264 completions: Arc::new(RwLock::new(completions.into())),
3265 matches: Vec::new().into(),
3266 selected_item: 0,
3267 scroll_handle: UniformListScrollHandle::new(),
3268 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3269 DebouncedDelay::new(),
3270 )),
3271 };
3272 menu.filter(query.as_deref(), cx.background_executor().clone())
3273 .await;
3274
3275 if menu.matches.is_empty() {
3276 None
3277 } else {
3278 this.update(&mut cx, |editor, cx| {
3279 let completions = menu.completions.clone();
3280 let matches = menu.matches.clone();
3281
3282 let delay_ms = EditorSettings::get_global(cx)
3283 .completion_documentation_secondary_query_debounce;
3284 let delay = Duration::from_millis(delay_ms);
3285
3286 editor
3287 .completion_documentation_pre_resolve_debounce
3288 .fire_new(delay, cx, |editor, cx| {
3289 CompletionsMenu::pre_resolve_completion_documentation(
3290 completions,
3291 matches,
3292 editor,
3293 cx,
3294 )
3295 });
3296 })
3297 .ok();
3298 Some(menu)
3299 }
3300 } else {
3301 None
3302 };
3303
3304 this.update(&mut cx, |this, cx| {
3305 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3306
3307 let mut context_menu = this.context_menu.write();
3308 match context_menu.as_ref() {
3309 None => {}
3310
3311 Some(ContextMenu::Completions(prev_menu)) => {
3312 if prev_menu.id > id {
3313 return;
3314 }
3315 }
3316
3317 _ => return,
3318 }
3319
3320 if this.focus_handle.is_focused(cx) && menu.is_some() {
3321 let menu = menu.unwrap();
3322 *context_menu = Some(ContextMenu::Completions(menu));
3323 drop(context_menu);
3324 this.discard_copilot_suggestion(cx);
3325 cx.notify();
3326 } else if this.completion_tasks.len() <= 1 {
3327 // If there are no more completion tasks and the last menu was
3328 // empty, we should hide it. If it was already hidden, we should
3329 // also show the copilot suggestion when available.
3330 drop(context_menu);
3331 if this.hide_context_menu(cx).is_none() {
3332 this.update_visible_copilot_suggestion(cx);
3333 }
3334 }
3335 })?;
3336
3337 Ok::<_, anyhow::Error>(())
3338 }
3339 .log_err()
3340 });
3341
3342 self.completion_tasks.push((id, task));
3343 }
3344
3345 pub fn confirm_completion(
3346 &mut self,
3347 action: &ConfirmCompletion,
3348 cx: &mut ViewContext<Self>,
3349 ) -> Option<Task<Result<()>>> {
3350 use language::ToOffset as _;
3351
3352 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3353 menu
3354 } else {
3355 return None;
3356 };
3357
3358 let mat = completions_menu
3359 .matches
3360 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3361 let buffer_handle = completions_menu.buffer;
3362 let completions = completions_menu.completions.read();
3363 let completion = completions.get(mat.candidate_id)?;
3364 cx.stop_propagation();
3365
3366 let snippet;
3367 let text;
3368 if completion.is_snippet() {
3369 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3370 text = snippet.as_ref().unwrap().text.clone();
3371 } else {
3372 snippet = None;
3373 text = completion.new_text.clone();
3374 };
3375 let selections = self.selections.all::<usize>(cx);
3376 let buffer = buffer_handle.read(cx);
3377 let old_range = completion.old_range.to_offset(buffer);
3378 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3379
3380 let newest_selection = self.selections.newest_anchor();
3381 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3382 return None;
3383 }
3384
3385 let lookbehind = newest_selection
3386 .start
3387 .text_anchor
3388 .to_offset(buffer)
3389 .saturating_sub(old_range.start);
3390 let lookahead = old_range
3391 .end
3392 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3393 let mut common_prefix_len = old_text
3394 .bytes()
3395 .zip(text.bytes())
3396 .take_while(|(a, b)| a == b)
3397 .count();
3398
3399 let snapshot = self.buffer.read(cx).snapshot(cx);
3400 let mut range_to_replace: Option<Range<isize>> = None;
3401 let mut ranges = Vec::new();
3402 for selection in &selections {
3403 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3404 let start = selection.start.saturating_sub(lookbehind);
3405 let end = selection.end + lookahead;
3406 if selection.id == newest_selection.id {
3407 range_to_replace = Some(
3408 ((start + common_prefix_len) as isize - selection.start as isize)
3409 ..(end as isize - selection.start as isize),
3410 );
3411 }
3412 ranges.push(start + common_prefix_len..end);
3413 } else {
3414 common_prefix_len = 0;
3415 ranges.clear();
3416 ranges.extend(selections.iter().map(|s| {
3417 if s.id == newest_selection.id {
3418 range_to_replace = Some(
3419 old_range.start.to_offset_utf16(&snapshot).0 as isize
3420 - selection.start as isize
3421 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3422 - selection.start as isize,
3423 );
3424 old_range.clone()
3425 } else {
3426 s.start..s.end
3427 }
3428 }));
3429 break;
3430 }
3431 }
3432 let text = &text[common_prefix_len..];
3433
3434 cx.emit(EditorEvent::InputHandled {
3435 utf16_range_to_replace: range_to_replace,
3436 text: text.into(),
3437 });
3438
3439 self.transact(cx, |this, cx| {
3440 if let Some(mut snippet) = snippet {
3441 snippet.text = text.to_string();
3442 for tabstop in snippet.tabstops.iter_mut().flatten() {
3443 tabstop.start -= common_prefix_len as isize;
3444 tabstop.end -= common_prefix_len as isize;
3445 }
3446
3447 this.insert_snippet(&ranges, snippet, cx).log_err();
3448 } else {
3449 this.buffer.update(cx, |buffer, cx| {
3450 buffer.edit(
3451 ranges.iter().map(|range| (range.clone(), text)),
3452 this.autoindent_mode.clone(),
3453 cx,
3454 );
3455 });
3456 }
3457
3458 this.refresh_copilot_suggestions(true, cx);
3459 });
3460
3461 let provider = self.completion_provider.as_ref()?;
3462 let apply_edits = provider.apply_additional_edits_for_completion(
3463 buffer_handle,
3464 completion.clone(),
3465 true,
3466 cx,
3467 );
3468 Some(cx.foreground_executor().spawn(async move {
3469 apply_edits.await?;
3470 Ok(())
3471 }))
3472 }
3473
3474 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3475 let mut context_menu = self.context_menu.write();
3476 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3477 *context_menu = None;
3478 cx.notify();
3479 return;
3480 }
3481 drop(context_menu);
3482
3483 let deployed_from_indicator = action.deployed_from_indicator;
3484 let mut task = self.code_actions_task.take();
3485 cx.spawn(|this, mut cx| async move {
3486 while let Some(prev_task) = task {
3487 prev_task.await;
3488 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3489 }
3490
3491 this.update(&mut cx, |this, cx| {
3492 if this.focus_handle.is_focused(cx) {
3493 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3494 this.completion_tasks.clear();
3495 this.discard_copilot_suggestion(cx);
3496 *this.context_menu.write() =
3497 Some(ContextMenu::CodeActions(CodeActionsMenu {
3498 buffer,
3499 actions,
3500 selected_item: Default::default(),
3501 scroll_handle: UniformListScrollHandle::default(),
3502 deployed_from_indicator,
3503 }));
3504 cx.notify();
3505 }
3506 }
3507 })?;
3508
3509 Ok::<_, anyhow::Error>(())
3510 })
3511 .detach_and_log_err(cx);
3512 }
3513
3514 pub fn confirm_code_action(
3515 &mut self,
3516 action: &ConfirmCodeAction,
3517 cx: &mut ViewContext<Self>,
3518 ) -> Option<Task<Result<()>>> {
3519 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3520 menu
3521 } else {
3522 return None;
3523 };
3524 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3525 let action = actions_menu.actions.get(action_ix)?.clone();
3526 let title = action.lsp_action.title.clone();
3527 let buffer = actions_menu.buffer;
3528 let workspace = self.workspace()?;
3529
3530 let apply_code_actions = workspace
3531 .read(cx)
3532 .project()
3533 .clone()
3534 .update(cx, |project, cx| {
3535 project.apply_code_action(buffer, action, true, cx)
3536 });
3537 let workspace = workspace.downgrade();
3538 Some(cx.spawn(|editor, cx| async move {
3539 let project_transaction = apply_code_actions.await?;
3540 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3541 }))
3542 }
3543
3544 async fn open_project_transaction(
3545 this: &WeakView<Editor>,
3546 workspace: WeakView<Workspace>,
3547 transaction: ProjectTransaction,
3548 title: String,
3549 mut cx: AsyncWindowContext,
3550 ) -> Result<()> {
3551 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3552
3553 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3554 cx.update(|cx| {
3555 entries.sort_unstable_by_key(|(buffer, _)| {
3556 buffer.read(cx).file().map(|f| f.path().clone())
3557 });
3558 })?;
3559
3560 // If the project transaction's edits are all contained within this editor, then
3561 // avoid opening a new editor to display them.
3562
3563 if let Some((buffer, transaction)) = entries.first() {
3564 if entries.len() == 1 {
3565 let excerpt = this.update(&mut cx, |editor, cx| {
3566 editor
3567 .buffer()
3568 .read(cx)
3569 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3570 })?;
3571 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3572 if excerpted_buffer == *buffer {
3573 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3574 let excerpt_range = excerpt_range.to_offset(buffer);
3575 buffer
3576 .edited_ranges_for_transaction::<usize>(transaction)
3577 .all(|range| {
3578 excerpt_range.start <= range.start
3579 && excerpt_range.end >= range.end
3580 })
3581 })?;
3582
3583 if all_edits_within_excerpt {
3584 return Ok(());
3585 }
3586 }
3587 }
3588 }
3589 } else {
3590 return Ok(());
3591 }
3592
3593 let mut ranges_to_highlight = Vec::new();
3594 let excerpt_buffer = cx.new_model(|cx| {
3595 let mut multibuffer =
3596 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3597 for (buffer_handle, transaction) in &entries {
3598 let buffer = buffer_handle.read(cx);
3599 ranges_to_highlight.extend(
3600 multibuffer.push_excerpts_with_context_lines(
3601 buffer_handle.clone(),
3602 buffer
3603 .edited_ranges_for_transaction::<usize>(transaction)
3604 .collect(),
3605 1,
3606 cx,
3607 ),
3608 );
3609 }
3610 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3611 multibuffer
3612 })?;
3613
3614 workspace.update(&mut cx, |workspace, cx| {
3615 let project = workspace.project().clone();
3616 let editor =
3617 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3618 workspace.add_item(Box::new(editor.clone()), cx);
3619 editor.update(cx, |editor, cx| {
3620 editor.highlight_background::<Self>(
3621 ranges_to_highlight,
3622 |theme| theme.editor_highlighted_line_background,
3623 cx,
3624 );
3625 });
3626 })?;
3627
3628 Ok(())
3629 }
3630
3631 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3632 let project = self.project.clone()?;
3633 let buffer = self.buffer.read(cx);
3634 let newest_selection = self.selections.newest_anchor().clone();
3635 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3636 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3637 if start_buffer != end_buffer {
3638 return None;
3639 }
3640
3641 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3642 cx.background_executor()
3643 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3644 .await;
3645
3646 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3647 project.code_actions(&start_buffer, start..end, cx)
3648 }) {
3649 code_actions.await.log_err()
3650 } else {
3651 None
3652 };
3653
3654 this.update(&mut cx, |this, cx| {
3655 this.available_code_actions = actions.and_then(|actions| {
3656 if actions.is_empty() {
3657 None
3658 } else {
3659 Some((start_buffer, actions.into()))
3660 }
3661 });
3662 cx.notify();
3663 })
3664 .log_err();
3665 }));
3666 None
3667 }
3668
3669 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3670 if self.pending_rename.is_some() {
3671 return None;
3672 }
3673
3674 let project = self.project.clone()?;
3675 let buffer = self.buffer.read(cx);
3676 let newest_selection = self.selections.newest_anchor().clone();
3677 let cursor_position = newest_selection.head();
3678 let (cursor_buffer, cursor_buffer_position) =
3679 buffer.text_anchor_for_position(cursor_position.clone(), cx)?;
3680 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3681 if cursor_buffer != tail_buffer {
3682 return None;
3683 }
3684
3685 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3686 cx.background_executor()
3687 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3688 .await;
3689
3690 let highlights = if let Some(highlights) = project
3691 .update(&mut cx, |project, cx| {
3692 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3693 })
3694 .log_err()
3695 {
3696 highlights.await.log_err()
3697 } else {
3698 None
3699 };
3700
3701 if let Some(highlights) = highlights {
3702 this.update(&mut cx, |this, cx| {
3703 if this.pending_rename.is_some() {
3704 return;
3705 }
3706
3707 let buffer_id = cursor_position.buffer_id;
3708 let buffer = this.buffer.read(cx);
3709 if !buffer
3710 .text_anchor_for_position(cursor_position, cx)
3711 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3712 {
3713 return;
3714 }
3715
3716 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3717 let mut write_ranges = Vec::new();
3718 let mut read_ranges = Vec::new();
3719 for highlight in highlights {
3720 for (excerpt_id, excerpt_range) in
3721 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3722 {
3723 let start = highlight
3724 .range
3725 .start
3726 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3727 let end = highlight
3728 .range
3729 .end
3730 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3731 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3732 continue;
3733 }
3734
3735 let range = Anchor {
3736 buffer_id,
3737 excerpt_id: excerpt_id.clone(),
3738 text_anchor: start,
3739 }..Anchor {
3740 buffer_id,
3741 excerpt_id,
3742 text_anchor: end,
3743 };
3744 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3745 write_ranges.push(range);
3746 } else {
3747 read_ranges.push(range);
3748 }
3749 }
3750 }
3751
3752 this.highlight_background::<DocumentHighlightRead>(
3753 read_ranges,
3754 |theme| theme.editor_document_highlight_read_background,
3755 cx,
3756 );
3757 this.highlight_background::<DocumentHighlightWrite>(
3758 write_ranges,
3759 |theme| theme.editor_document_highlight_write_background,
3760 cx,
3761 );
3762 cx.notify();
3763 })
3764 .log_err();
3765 }
3766 }));
3767 None
3768 }
3769
3770 fn refresh_copilot_suggestions(
3771 &mut self,
3772 debounce: bool,
3773 cx: &mut ViewContext<Self>,
3774 ) -> Option<()> {
3775 let copilot = Copilot::global(cx)?;
3776 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3777 self.clear_copilot_suggestions(cx);
3778 return None;
3779 }
3780 self.update_visible_copilot_suggestion(cx);
3781
3782 let snapshot = self.buffer.read(cx).snapshot(cx);
3783 let cursor = self.selections.newest_anchor().head();
3784 if !self.is_copilot_enabled_at(cursor, &snapshot, cx) {
3785 self.clear_copilot_suggestions(cx);
3786 return None;
3787 }
3788
3789 let (buffer, buffer_position) =
3790 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3791 self.copilot_state.pending_refresh = cx.spawn(|this, mut cx| async move {
3792 if debounce {
3793 cx.background_executor()
3794 .timer(COPILOT_DEBOUNCE_TIMEOUT)
3795 .await;
3796 }
3797
3798 let completions = copilot
3799 .update(&mut cx, |copilot, cx| {
3800 copilot.completions(&buffer, buffer_position, cx)
3801 })
3802 .log_err()
3803 .unwrap_or(Task::ready(Ok(Vec::new())))
3804 .await
3805 .log_err()
3806 .into_iter()
3807 .flatten()
3808 .collect_vec();
3809
3810 this.update(&mut cx, |this, cx| {
3811 if !completions.is_empty() {
3812 this.copilot_state.cycled = false;
3813 this.copilot_state.pending_cycling_refresh = Task::ready(None);
3814 this.copilot_state.completions.clear();
3815 this.copilot_state.active_completion_index = 0;
3816 this.copilot_state.excerpt_id = Some(cursor.excerpt_id);
3817 for completion in completions {
3818 this.copilot_state.push_completion(completion);
3819 }
3820 this.update_visible_copilot_suggestion(cx);
3821 }
3822 })
3823 .log_err()?;
3824 Some(())
3825 });
3826
3827 Some(())
3828 }
3829
3830 fn cycle_copilot_suggestions(
3831 &mut self,
3832 direction: Direction,
3833 cx: &mut ViewContext<Self>,
3834 ) -> Option<()> {
3835 let copilot = Copilot::global(cx)?;
3836 if !self.show_copilot_suggestions || !copilot.read(cx).status().is_authorized() {
3837 return None;
3838 }
3839
3840 if self.copilot_state.cycled {
3841 self.copilot_state.cycle_completions(direction);
3842 self.update_visible_copilot_suggestion(cx);
3843 } else {
3844 let cursor = self.selections.newest_anchor().head();
3845 let (buffer, buffer_position) =
3846 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
3847 self.copilot_state.pending_cycling_refresh = cx.spawn(|this, mut cx| async move {
3848 let completions = copilot
3849 .update(&mut cx, |copilot, cx| {
3850 copilot.completions_cycling(&buffer, buffer_position, cx)
3851 })
3852 .log_err()?
3853 .await;
3854
3855 this.update(&mut cx, |this, cx| {
3856 this.copilot_state.cycled = true;
3857 for completion in completions.log_err().into_iter().flatten() {
3858 this.copilot_state.push_completion(completion);
3859 }
3860 this.copilot_state.cycle_completions(direction);
3861 this.update_visible_copilot_suggestion(cx);
3862 })
3863 .log_err()?;
3864
3865 Some(())
3866 });
3867 }
3868
3869 Some(())
3870 }
3871
3872 fn copilot_suggest(&mut self, _: &copilot::Suggest, cx: &mut ViewContext<Self>) {
3873 if !self.has_active_copilot_suggestion(cx) {
3874 self.refresh_copilot_suggestions(false, cx);
3875 return;
3876 }
3877
3878 self.update_visible_copilot_suggestion(cx);
3879 }
3880
3881 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
3882 self.show_cursor_names(cx);
3883 }
3884
3885 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
3886 self.show_cursor_names = true;
3887 cx.notify();
3888 cx.spawn(|this, mut cx| async move {
3889 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
3890 this.update(&mut cx, |this, cx| {
3891 this.show_cursor_names = false;
3892 cx.notify()
3893 })
3894 .ok()
3895 })
3896 .detach();
3897 }
3898
3899 fn next_copilot_suggestion(&mut self, _: &copilot::NextSuggestion, cx: &mut ViewContext<Self>) {
3900 if self.has_active_copilot_suggestion(cx) {
3901 self.cycle_copilot_suggestions(Direction::Next, cx);
3902 } else {
3903 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3904 if is_copilot_disabled {
3905 cx.propagate();
3906 }
3907 }
3908 }
3909
3910 fn previous_copilot_suggestion(
3911 &mut self,
3912 _: &copilot::PreviousSuggestion,
3913 cx: &mut ViewContext<Self>,
3914 ) {
3915 if self.has_active_copilot_suggestion(cx) {
3916 self.cycle_copilot_suggestions(Direction::Prev, cx);
3917 } else {
3918 let is_copilot_disabled = self.refresh_copilot_suggestions(false, cx).is_none();
3919 if is_copilot_disabled {
3920 cx.propagate();
3921 }
3922 }
3923 }
3924
3925 fn accept_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3926 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3927 if let Some((copilot, completion)) =
3928 Copilot::global(cx).zip(self.copilot_state.active_completion())
3929 {
3930 copilot
3931 .update(cx, |copilot, cx| copilot.accept_completion(completion, cx))
3932 .detach_and_log_err(cx);
3933
3934 self.report_copilot_event(Some(completion.uuid.clone()), true, cx)
3935 }
3936 cx.emit(EditorEvent::InputHandled {
3937 utf16_range_to_replace: None,
3938 text: suggestion.text.to_string().into(),
3939 });
3940 self.insert_with_autoindent_mode(&suggestion.text.to_string(), None, cx);
3941 cx.notify();
3942 true
3943 } else {
3944 false
3945 }
3946 }
3947
3948 fn discard_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> bool {
3949 if let Some(suggestion) = self.take_active_copilot_suggestion(cx) {
3950 if let Some(copilot) = Copilot::global(cx) {
3951 copilot
3952 .update(cx, |copilot, cx| {
3953 copilot.discard_completions(&self.copilot_state.completions, cx)
3954 })
3955 .detach_and_log_err(cx);
3956
3957 self.report_copilot_event(None, false, cx)
3958 }
3959
3960 self.display_map.update(cx, |map, cx| {
3961 map.splice_inlays(vec![suggestion.id], Vec::new(), cx)
3962 });
3963 cx.notify();
3964 true
3965 } else {
3966 false
3967 }
3968 }
3969
3970 fn is_copilot_enabled_at(
3971 &self,
3972 location: Anchor,
3973 snapshot: &MultiBufferSnapshot,
3974 cx: &mut ViewContext<Self>,
3975 ) -> bool {
3976 let file = snapshot.file_at(location);
3977 let language = snapshot.language_at(location);
3978 let settings = all_language_settings(file, cx);
3979 self.show_copilot_suggestions
3980 && settings.copilot_enabled(language, file.map(|f| f.path().as_ref()))
3981 }
3982
3983 fn has_active_copilot_suggestion(&self, cx: &AppContext) -> bool {
3984 if let Some(suggestion) = self.copilot_state.suggestion.as_ref() {
3985 let buffer = self.buffer.read(cx).read(cx);
3986 suggestion.position.is_valid(&buffer)
3987 } else {
3988 false
3989 }
3990 }
3991
3992 fn take_active_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
3993 let suggestion = self.copilot_state.suggestion.take()?;
3994 self.display_map.update(cx, |map, cx| {
3995 map.splice_inlays(vec![suggestion.id], Default::default(), cx);
3996 });
3997 let buffer = self.buffer.read(cx).read(cx);
3998
3999 if suggestion.position.is_valid(&buffer) {
4000 Some(suggestion)
4001 } else {
4002 None
4003 }
4004 }
4005
4006 fn update_visible_copilot_suggestion(&mut self, cx: &mut ViewContext<Self>) {
4007 let snapshot = self.buffer.read(cx).snapshot(cx);
4008 let selection = self.selections.newest_anchor();
4009 let cursor = selection.head();
4010
4011 if self.context_menu.read().is_some()
4012 || !self.completion_tasks.is_empty()
4013 || selection.start != selection.end
4014 {
4015 self.discard_copilot_suggestion(cx);
4016 } else if let Some(text) = self
4017 .copilot_state
4018 .text_for_active_completion(cursor, &snapshot)
4019 {
4020 let text = Rope::from(text);
4021 let mut to_remove = Vec::new();
4022 if let Some(suggestion) = self.copilot_state.suggestion.take() {
4023 to_remove.push(suggestion.id);
4024 }
4025
4026 let suggestion_inlay =
4027 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4028 self.copilot_state.suggestion = Some(suggestion_inlay.clone());
4029 self.display_map.update(cx, move |map, cx| {
4030 map.splice_inlays(to_remove, vec![suggestion_inlay], cx)
4031 });
4032 cx.notify();
4033 } else {
4034 self.discard_copilot_suggestion(cx);
4035 }
4036 }
4037
4038 fn clear_copilot_suggestions(&mut self, cx: &mut ViewContext<Self>) {
4039 self.copilot_state = Default::default();
4040 self.discard_copilot_suggestion(cx);
4041 }
4042
4043 pub fn render_code_actions_indicator(
4044 &self,
4045 _style: &EditorStyle,
4046 is_active: bool,
4047 cx: &mut ViewContext<Self>,
4048 ) -> Option<IconButton> {
4049 if self.available_code_actions.is_some() {
4050 Some(
4051 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4052 .icon_size(IconSize::Small)
4053 .icon_color(Color::Muted)
4054 .selected(is_active)
4055 .on_click(cx.listener(|editor, _e, cx| {
4056 editor.toggle_code_actions(
4057 &ToggleCodeActions {
4058 deployed_from_indicator: true,
4059 },
4060 cx,
4061 );
4062 })),
4063 )
4064 } else {
4065 None
4066 }
4067 }
4068
4069 pub fn render_fold_indicators(
4070 &self,
4071 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4072 _style: &EditorStyle,
4073 gutter_hovered: bool,
4074 _line_height: Pixels,
4075 _gutter_margin: Pixels,
4076 editor_view: View<Editor>,
4077 ) -> Vec<Option<IconButton>> {
4078 fold_data
4079 .iter()
4080 .enumerate()
4081 .map(|(ix, fold_data)| {
4082 fold_data
4083 .map(|(fold_status, buffer_row, active)| {
4084 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4085 IconButton::new(ix as usize, ui::IconName::ChevronDown)
4086 .on_click({
4087 let view = editor_view.clone();
4088 move |_e, cx| {
4089 view.update(cx, |editor, cx| match fold_status {
4090 FoldStatus::Folded => {
4091 editor.unfold_at(&UnfoldAt { buffer_row }, cx);
4092 }
4093 FoldStatus::Foldable => {
4094 editor.fold_at(&FoldAt { buffer_row }, cx);
4095 }
4096 })
4097 }
4098 })
4099 .icon_color(ui::Color::Muted)
4100 .icon_size(ui::IconSize::Small)
4101 .selected(fold_status == FoldStatus::Folded)
4102 .selected_icon(ui::IconName::ChevronRight)
4103 .size(ui::ButtonSize::None)
4104 })
4105 })
4106 .flatten()
4107 })
4108 .collect()
4109 }
4110
4111 pub fn context_menu_visible(&self) -> bool {
4112 self.context_menu
4113 .read()
4114 .as_ref()
4115 .map_or(false, |menu| menu.visible())
4116 }
4117
4118 pub fn render_context_menu(
4119 &self,
4120 cursor_position: DisplayPoint,
4121 style: &EditorStyle,
4122 max_height: Pixels,
4123 cx: &mut ViewContext<Editor>,
4124 ) -> Option<(DisplayPoint, AnyElement)> {
4125 self.context_menu.read().as_ref().map(|menu| {
4126 menu.render(
4127 cursor_position,
4128 style,
4129 max_height,
4130 self.workspace.as_ref().map(|(w, _)| w.clone()),
4131 cx,
4132 )
4133 })
4134 }
4135
4136 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4137 cx.notify();
4138 self.completion_tasks.clear();
4139 let context_menu = self.context_menu.write().take();
4140 if context_menu.is_some() {
4141 self.update_visible_copilot_suggestion(cx);
4142 }
4143 context_menu
4144 }
4145
4146 pub fn insert_snippet(
4147 &mut self,
4148 insertion_ranges: &[Range<usize>],
4149 snippet: Snippet,
4150 cx: &mut ViewContext<Self>,
4151 ) -> Result<()> {
4152 let tabstops = self.buffer.update(cx, |buffer, cx| {
4153 let snippet_text: Arc<str> = snippet.text.clone().into();
4154 buffer.edit(
4155 insertion_ranges
4156 .iter()
4157 .cloned()
4158 .map(|range| (range, snippet_text.clone())),
4159 Some(AutoindentMode::EachLine),
4160 cx,
4161 );
4162
4163 let snapshot = &*buffer.read(cx);
4164 let snippet = &snippet;
4165 snippet
4166 .tabstops
4167 .iter()
4168 .map(|tabstop| {
4169 let mut tabstop_ranges = tabstop
4170 .iter()
4171 .flat_map(|tabstop_range| {
4172 let mut delta = 0_isize;
4173 insertion_ranges.iter().map(move |insertion_range| {
4174 let insertion_start = insertion_range.start as isize + delta;
4175 delta +=
4176 snippet.text.len() as isize - insertion_range.len() as isize;
4177
4178 let start = snapshot.anchor_before(
4179 (insertion_start + tabstop_range.start) as usize,
4180 );
4181 let end = snapshot
4182 .anchor_after((insertion_start + tabstop_range.end) as usize);
4183 start..end
4184 })
4185 })
4186 .collect::<Vec<_>>();
4187 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4188 tabstop_ranges
4189 })
4190 .collect::<Vec<_>>()
4191 });
4192
4193 if let Some(tabstop) = tabstops.first() {
4194 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4195 s.select_ranges(tabstop.iter().cloned());
4196 });
4197 self.snippet_stack.push(SnippetState {
4198 active_index: 0,
4199 ranges: tabstops,
4200 });
4201 }
4202
4203 Ok(())
4204 }
4205
4206 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4207 self.move_to_snippet_tabstop(Bias::Right, cx)
4208 }
4209
4210 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4211 self.move_to_snippet_tabstop(Bias::Left, cx)
4212 }
4213
4214 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4215 if let Some(mut snippet) = self.snippet_stack.pop() {
4216 match bias {
4217 Bias::Left => {
4218 if snippet.active_index > 0 {
4219 snippet.active_index -= 1;
4220 } else {
4221 self.snippet_stack.push(snippet);
4222 return false;
4223 }
4224 }
4225 Bias::Right => {
4226 if snippet.active_index + 1 < snippet.ranges.len() {
4227 snippet.active_index += 1;
4228 } else {
4229 self.snippet_stack.push(snippet);
4230 return false;
4231 }
4232 }
4233 }
4234 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4235 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4236 s.select_anchor_ranges(current_ranges.iter().cloned())
4237 });
4238 // If snippet state is not at the last tabstop, push it back on the stack
4239 if snippet.active_index + 1 < snippet.ranges.len() {
4240 self.snippet_stack.push(snippet);
4241 }
4242 return true;
4243 }
4244 }
4245
4246 false
4247 }
4248
4249 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4250 self.transact(cx, |this, cx| {
4251 this.select_all(&SelectAll, cx);
4252 this.insert("", cx);
4253 });
4254 }
4255
4256 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4257 self.transact(cx, |this, cx| {
4258 this.select_autoclose_pair(cx);
4259 let mut selections = this.selections.all::<Point>(cx);
4260 if !this.selections.line_mode {
4261 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4262 for selection in &mut selections {
4263 if selection.is_empty() {
4264 let old_head = selection.head();
4265 let mut new_head =
4266 movement::left(&display_map, old_head.to_display_point(&display_map))
4267 .to_point(&display_map);
4268 if let Some((buffer, line_buffer_range)) = display_map
4269 .buffer_snapshot
4270 .buffer_line_for_row(old_head.row)
4271 {
4272 let indent_size =
4273 buffer.indent_size_for_line(line_buffer_range.start.row);
4274 let indent_len = match indent_size.kind {
4275 IndentKind::Space => {
4276 buffer.settings_at(line_buffer_range.start, cx).tab_size
4277 }
4278 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4279 };
4280 if old_head.column <= indent_size.len && old_head.column > 0 {
4281 let indent_len = indent_len.get();
4282 new_head = cmp::min(
4283 new_head,
4284 Point::new(
4285 old_head.row,
4286 ((old_head.column - 1) / indent_len) * indent_len,
4287 ),
4288 );
4289 }
4290 }
4291
4292 selection.set_head(new_head, SelectionGoal::None);
4293 }
4294 }
4295 }
4296
4297 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4298 this.insert("", cx);
4299 this.refresh_copilot_suggestions(true, cx);
4300 });
4301 }
4302
4303 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4304 self.transact(cx, |this, cx| {
4305 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4306 let line_mode = s.line_mode;
4307 s.move_with(|map, selection| {
4308 if selection.is_empty() && !line_mode {
4309 let cursor = movement::right(map, selection.head());
4310 selection.end = cursor;
4311 selection.reversed = true;
4312 selection.goal = SelectionGoal::None;
4313 }
4314 })
4315 });
4316 this.insert("", cx);
4317 this.refresh_copilot_suggestions(true, cx);
4318 });
4319 }
4320
4321 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4322 if self.move_to_prev_snippet_tabstop(cx) {
4323 return;
4324 }
4325
4326 self.outdent(&Outdent, cx);
4327 }
4328
4329 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4330 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4331 return;
4332 }
4333
4334 let mut selections = self.selections.all_adjusted(cx);
4335 let buffer = self.buffer.read(cx);
4336 let snapshot = buffer.snapshot(cx);
4337 let rows_iter = selections.iter().map(|s| s.head().row);
4338 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4339
4340 let mut edits = Vec::new();
4341 let mut prev_edited_row = 0;
4342 let mut row_delta = 0;
4343 for selection in &mut selections {
4344 if selection.start.row != prev_edited_row {
4345 row_delta = 0;
4346 }
4347 prev_edited_row = selection.end.row;
4348
4349 // If the selection is non-empty, then increase the indentation of the selected lines.
4350 if !selection.is_empty() {
4351 row_delta =
4352 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4353 continue;
4354 }
4355
4356 // If the selection is empty and the cursor is in the leading whitespace before the
4357 // suggested indentation, then auto-indent the line.
4358 let cursor = selection.head();
4359 let current_indent = snapshot.indent_size_for_line(cursor.row);
4360 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4361 if cursor.column < suggested_indent.len
4362 && cursor.column <= current_indent.len
4363 && current_indent.len <= suggested_indent.len
4364 {
4365 selection.start = Point::new(cursor.row, suggested_indent.len);
4366 selection.end = selection.start;
4367 if row_delta == 0 {
4368 edits.extend(Buffer::edit_for_indent_size_adjustment(
4369 cursor.row,
4370 current_indent,
4371 suggested_indent,
4372 ));
4373 row_delta = suggested_indent.len - current_indent.len;
4374 }
4375 continue;
4376 }
4377 }
4378
4379 // Accept copilot suggestion if there is only one selection and the cursor is not
4380 // in the leading whitespace.
4381 if self.selections.count() == 1
4382 && cursor.column >= current_indent.len
4383 && self.has_active_copilot_suggestion(cx)
4384 {
4385 self.accept_copilot_suggestion(cx);
4386 return;
4387 }
4388
4389 // Otherwise, insert a hard or soft tab.
4390 let settings = buffer.settings_at(cursor, cx);
4391 let tab_size = if settings.hard_tabs {
4392 IndentSize::tab()
4393 } else {
4394 let tab_size = settings.tab_size.get();
4395 let char_column = snapshot
4396 .text_for_range(Point::new(cursor.row, 0)..cursor)
4397 .flat_map(str::chars)
4398 .count()
4399 + row_delta as usize;
4400 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4401 IndentSize::spaces(chars_to_next_tab_stop)
4402 };
4403 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4404 selection.end = selection.start;
4405 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4406 row_delta += tab_size.len;
4407 }
4408
4409 self.transact(cx, |this, cx| {
4410 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4411 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4412 this.refresh_copilot_suggestions(true, cx);
4413 });
4414 }
4415
4416 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4417 let mut selections = self.selections.all::<Point>(cx);
4418 let mut prev_edited_row = 0;
4419 let mut row_delta = 0;
4420 let mut edits = Vec::new();
4421 let buffer = self.buffer.read(cx);
4422 let snapshot = buffer.snapshot(cx);
4423 for selection in &mut selections {
4424 if selection.start.row != prev_edited_row {
4425 row_delta = 0;
4426 }
4427 prev_edited_row = selection.end.row;
4428
4429 row_delta =
4430 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4431 }
4432
4433 self.transact(cx, |this, cx| {
4434 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4435 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4436 });
4437 }
4438
4439 fn indent_selection(
4440 buffer: &MultiBuffer,
4441 snapshot: &MultiBufferSnapshot,
4442 selection: &mut Selection<Point>,
4443 edits: &mut Vec<(Range<Point>, String)>,
4444 delta_for_start_row: u32,
4445 cx: &AppContext,
4446 ) -> u32 {
4447 let settings = buffer.settings_at(selection.start, cx);
4448 let tab_size = settings.tab_size.get();
4449 let indent_kind = if settings.hard_tabs {
4450 IndentKind::Tab
4451 } else {
4452 IndentKind::Space
4453 };
4454 let mut start_row = selection.start.row;
4455 let mut end_row = selection.end.row + 1;
4456
4457 // If a selection ends at the beginning of a line, don't indent
4458 // that last line.
4459 if selection.end.column == 0 {
4460 end_row -= 1;
4461 }
4462
4463 // Avoid re-indenting a row that has already been indented by a
4464 // previous selection, but still update this selection's column
4465 // to reflect that indentation.
4466 if delta_for_start_row > 0 {
4467 start_row += 1;
4468 selection.start.column += delta_for_start_row;
4469 if selection.end.row == selection.start.row {
4470 selection.end.column += delta_for_start_row;
4471 }
4472 }
4473
4474 let mut delta_for_end_row = 0;
4475 for row in start_row..end_row {
4476 let current_indent = snapshot.indent_size_for_line(row);
4477 let indent_delta = match (current_indent.kind, indent_kind) {
4478 (IndentKind::Space, IndentKind::Space) => {
4479 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4480 IndentSize::spaces(columns_to_next_tab_stop)
4481 }
4482 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4483 (_, IndentKind::Tab) => IndentSize::tab(),
4484 };
4485
4486 let row_start = Point::new(row, 0);
4487 edits.push((
4488 row_start..row_start,
4489 indent_delta.chars().collect::<String>(),
4490 ));
4491
4492 // Update this selection's endpoints to reflect the indentation.
4493 if row == selection.start.row {
4494 selection.start.column += indent_delta.len;
4495 }
4496 if row == selection.end.row {
4497 selection.end.column += indent_delta.len;
4498 delta_for_end_row = indent_delta.len;
4499 }
4500 }
4501
4502 if selection.start.row == selection.end.row {
4503 delta_for_start_row + delta_for_end_row
4504 } else {
4505 delta_for_end_row
4506 }
4507 }
4508
4509 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4510 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4511 let selections = self.selections.all::<Point>(cx);
4512 let mut deletion_ranges = Vec::new();
4513 let mut last_outdent = None;
4514 {
4515 let buffer = self.buffer.read(cx);
4516 let snapshot = buffer.snapshot(cx);
4517 for selection in &selections {
4518 let settings = buffer.settings_at(selection.start, cx);
4519 let tab_size = settings.tab_size.get();
4520 let mut rows = selection.spanned_rows(false, &display_map);
4521
4522 // Avoid re-outdenting a row that has already been outdented by a
4523 // previous selection.
4524 if let Some(last_row) = last_outdent {
4525 if last_row == rows.start {
4526 rows.start += 1;
4527 }
4528 }
4529
4530 for row in rows {
4531 let indent_size = snapshot.indent_size_for_line(row);
4532 if indent_size.len > 0 {
4533 let deletion_len = match indent_size.kind {
4534 IndentKind::Space => {
4535 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4536 if columns_to_prev_tab_stop == 0 {
4537 tab_size
4538 } else {
4539 columns_to_prev_tab_stop
4540 }
4541 }
4542 IndentKind::Tab => 1,
4543 };
4544 deletion_ranges.push(Point::new(row, 0)..Point::new(row, deletion_len));
4545 last_outdent = Some(row);
4546 }
4547 }
4548 }
4549 }
4550
4551 self.transact(cx, |this, cx| {
4552 this.buffer.update(cx, |buffer, cx| {
4553 let empty_str: Arc<str> = "".into();
4554 buffer.edit(
4555 deletion_ranges
4556 .into_iter()
4557 .map(|range| (range, empty_str.clone())),
4558 None,
4559 cx,
4560 );
4561 });
4562 let selections = this.selections.all::<usize>(cx);
4563 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4564 });
4565 }
4566
4567 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4568 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4569 let selections = self.selections.all::<Point>(cx);
4570
4571 let mut new_cursors = Vec::new();
4572 let mut edit_ranges = Vec::new();
4573 let mut selections = selections.iter().peekable();
4574 while let Some(selection) = selections.next() {
4575 let mut rows = selection.spanned_rows(false, &display_map);
4576 let goal_display_column = selection.head().to_display_point(&display_map).column();
4577
4578 // Accumulate contiguous regions of rows that we want to delete.
4579 while let Some(next_selection) = selections.peek() {
4580 let next_rows = next_selection.spanned_rows(false, &display_map);
4581 if next_rows.start <= rows.end {
4582 rows.end = next_rows.end;
4583 selections.next().unwrap();
4584 } else {
4585 break;
4586 }
4587 }
4588
4589 let buffer = &display_map.buffer_snapshot;
4590 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4591 let edit_end;
4592 let cursor_buffer_row;
4593 if buffer.max_point().row >= rows.end {
4594 // If there's a line after the range, delete the \n from the end of the row range
4595 // and position the cursor on the next line.
4596 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4597 cursor_buffer_row = rows.end;
4598 } else {
4599 // If there isn't a line after the range, delete the \n from the line before the
4600 // start of the row range and position the cursor there.
4601 edit_start = edit_start.saturating_sub(1);
4602 edit_end = buffer.len();
4603 cursor_buffer_row = rows.start.saturating_sub(1);
4604 }
4605
4606 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4607 *cursor.column_mut() =
4608 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4609
4610 new_cursors.push((
4611 selection.id,
4612 buffer.anchor_after(cursor.to_point(&display_map)),
4613 ));
4614 edit_ranges.push(edit_start..edit_end);
4615 }
4616
4617 self.transact(cx, |this, cx| {
4618 let buffer = this.buffer.update(cx, |buffer, cx| {
4619 let empty_str: Arc<str> = "".into();
4620 buffer.edit(
4621 edit_ranges
4622 .into_iter()
4623 .map(|range| (range, empty_str.clone())),
4624 None,
4625 cx,
4626 );
4627 buffer.snapshot(cx)
4628 });
4629 let new_selections = new_cursors
4630 .into_iter()
4631 .map(|(id, cursor)| {
4632 let cursor = cursor.to_point(&buffer);
4633 Selection {
4634 id,
4635 start: cursor,
4636 end: cursor,
4637 reversed: false,
4638 goal: SelectionGoal::None,
4639 }
4640 })
4641 .collect();
4642
4643 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4644 s.select(new_selections);
4645 });
4646 });
4647 }
4648
4649 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4650 let mut row_ranges = Vec::<Range<u32>>::new();
4651 for selection in self.selections.all::<Point>(cx) {
4652 let start = selection.start.row;
4653 let end = if selection.start.row == selection.end.row {
4654 selection.start.row + 1
4655 } else {
4656 selection.end.row
4657 };
4658
4659 if let Some(last_row_range) = row_ranges.last_mut() {
4660 if start <= last_row_range.end {
4661 last_row_range.end = end;
4662 continue;
4663 }
4664 }
4665 row_ranges.push(start..end);
4666 }
4667
4668 let snapshot = self.buffer.read(cx).snapshot(cx);
4669 let mut cursor_positions = Vec::new();
4670 for row_range in &row_ranges {
4671 let anchor = snapshot.anchor_before(Point::new(
4672 row_range.end - 1,
4673 snapshot.line_len(row_range.end - 1),
4674 ));
4675 cursor_positions.push(anchor.clone()..anchor);
4676 }
4677
4678 self.transact(cx, |this, cx| {
4679 for row_range in row_ranges.into_iter().rev() {
4680 for row in row_range.rev() {
4681 let end_of_line = Point::new(row, snapshot.line_len(row));
4682 let indent = snapshot.indent_size_for_line(row + 1);
4683 let start_of_next_line = Point::new(row + 1, indent.len);
4684
4685 let replace = if snapshot.line_len(row + 1) > indent.len {
4686 " "
4687 } else {
4688 ""
4689 };
4690
4691 this.buffer.update(cx, |buffer, cx| {
4692 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4693 });
4694 }
4695 }
4696
4697 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4698 s.select_anchor_ranges(cursor_positions)
4699 });
4700 });
4701 }
4702
4703 pub fn sort_lines_case_sensitive(
4704 &mut self,
4705 _: &SortLinesCaseSensitive,
4706 cx: &mut ViewContext<Self>,
4707 ) {
4708 self.manipulate_lines(cx, |lines| lines.sort())
4709 }
4710
4711 pub fn sort_lines_case_insensitive(
4712 &mut self,
4713 _: &SortLinesCaseInsensitive,
4714 cx: &mut ViewContext<Self>,
4715 ) {
4716 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4717 }
4718
4719 pub fn unique_lines_case_insensitive(
4720 &mut self,
4721 _: &UniqueLinesCaseInsensitive,
4722 cx: &mut ViewContext<Self>,
4723 ) {
4724 self.manipulate_lines(cx, |lines| {
4725 let mut seen = HashSet::default();
4726 lines.retain(|line| seen.insert(line.to_lowercase()));
4727 })
4728 }
4729
4730 pub fn unique_lines_case_sensitive(
4731 &mut self,
4732 _: &UniqueLinesCaseSensitive,
4733 cx: &mut ViewContext<Self>,
4734 ) {
4735 self.manipulate_lines(cx, |lines| {
4736 let mut seen = HashSet::default();
4737 lines.retain(|line| seen.insert(*line));
4738 })
4739 }
4740
4741 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
4742 self.manipulate_lines(cx, |lines| lines.reverse())
4743 }
4744
4745 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
4746 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
4747 }
4748
4749 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4750 where
4751 Fn: FnMut(&mut Vec<&str>),
4752 {
4753 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4754 let buffer = self.buffer.read(cx).snapshot(cx);
4755
4756 let mut edits = Vec::new();
4757
4758 let selections = self.selections.all::<Point>(cx);
4759 let mut selections = selections.iter().peekable();
4760 let mut contiguous_row_selections = Vec::new();
4761 let mut new_selections = Vec::new();
4762 let mut added_lines = 0;
4763 let mut removed_lines = 0;
4764
4765 while let Some(selection) = selections.next() {
4766 let (start_row, end_row) = consume_contiguous_rows(
4767 &mut contiguous_row_selections,
4768 selection,
4769 &display_map,
4770 &mut selections,
4771 );
4772
4773 let start_point = Point::new(start_row, 0);
4774 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
4775 let text = buffer
4776 .text_for_range(start_point..end_point)
4777 .collect::<String>();
4778
4779 let mut lines = text.split("\n").collect_vec();
4780
4781 let lines_before = lines.len();
4782 callback(&mut lines);
4783 let lines_after = lines.len();
4784
4785 edits.push((start_point..end_point, lines.join("\n")));
4786
4787 // Selections must change based on added and removed line count
4788 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
4789 let end_row = start_row + lines_after.saturating_sub(1) as u32;
4790 new_selections.push(Selection {
4791 id: selection.id,
4792 start: start_row,
4793 end: end_row,
4794 goal: SelectionGoal::None,
4795 reversed: selection.reversed,
4796 });
4797
4798 if lines_after > lines_before {
4799 added_lines += lines_after - lines_before;
4800 } else if lines_before > lines_after {
4801 removed_lines += lines_before - lines_after;
4802 }
4803 }
4804
4805 self.transact(cx, |this, cx| {
4806 let buffer = this.buffer.update(cx, |buffer, cx| {
4807 buffer.edit(edits, None, cx);
4808 buffer.snapshot(cx)
4809 });
4810
4811 // Recalculate offsets on newly edited buffer
4812 let new_selections = new_selections
4813 .iter()
4814 .map(|s| {
4815 let start_point = Point::new(s.start, 0);
4816 let end_point = Point::new(s.end, buffer.line_len(s.end));
4817 Selection {
4818 id: s.id,
4819 start: buffer.point_to_offset(start_point),
4820 end: buffer.point_to_offset(end_point),
4821 goal: s.goal,
4822 reversed: s.reversed,
4823 }
4824 })
4825 .collect();
4826
4827 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4828 s.select(new_selections);
4829 });
4830
4831 this.request_autoscroll(Autoscroll::fit(), cx);
4832 });
4833 }
4834
4835 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
4836 self.manipulate_text(cx, |text| text.to_uppercase())
4837 }
4838
4839 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
4840 self.manipulate_text(cx, |text| text.to_lowercase())
4841 }
4842
4843 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
4844 self.manipulate_text(cx, |text| {
4845 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4846 // https://github.com/rutrum/convert-case/issues/16
4847 text.split("\n")
4848 .map(|line| line.to_case(Case::Title))
4849 .join("\n")
4850 })
4851 }
4852
4853 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
4854 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
4855 }
4856
4857 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
4858 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
4859 }
4860
4861 pub fn convert_to_upper_camel_case(
4862 &mut self,
4863 _: &ConvertToUpperCamelCase,
4864 cx: &mut ViewContext<Self>,
4865 ) {
4866 self.manipulate_text(cx, |text| {
4867 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
4868 // https://github.com/rutrum/convert-case/issues/16
4869 text.split("\n")
4870 .map(|line| line.to_case(Case::UpperCamel))
4871 .join("\n")
4872 })
4873 }
4874
4875 pub fn convert_to_lower_camel_case(
4876 &mut self,
4877 _: &ConvertToLowerCamelCase,
4878 cx: &mut ViewContext<Self>,
4879 ) {
4880 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
4881 }
4882
4883 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
4884 where
4885 Fn: FnMut(&str) -> String,
4886 {
4887 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4888 let buffer = self.buffer.read(cx).snapshot(cx);
4889
4890 let mut new_selections = Vec::new();
4891 let mut edits = Vec::new();
4892 let mut selection_adjustment = 0i32;
4893
4894 for selection in self.selections.all::<usize>(cx) {
4895 let selection_is_empty = selection.is_empty();
4896
4897 let (start, end) = if selection_is_empty {
4898 let word_range = movement::surrounding_word(
4899 &display_map,
4900 selection.start.to_display_point(&display_map),
4901 );
4902 let start = word_range.start.to_offset(&display_map, Bias::Left);
4903 let end = word_range.end.to_offset(&display_map, Bias::Left);
4904 (start, end)
4905 } else {
4906 (selection.start, selection.end)
4907 };
4908
4909 let text = buffer.text_for_range(start..end).collect::<String>();
4910 let old_length = text.len() as i32;
4911 let text = callback(&text);
4912
4913 new_selections.push(Selection {
4914 start: (start as i32 - selection_adjustment) as usize,
4915 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
4916 goal: SelectionGoal::None,
4917 ..selection
4918 });
4919
4920 selection_adjustment += old_length - text.len() as i32;
4921
4922 edits.push((start..end, text));
4923 }
4924
4925 self.transact(cx, |this, cx| {
4926 this.buffer.update(cx, |buffer, cx| {
4927 buffer.edit(edits, None, cx);
4928 });
4929
4930 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4931 s.select(new_selections);
4932 });
4933
4934 this.request_autoscroll(Autoscroll::fit(), cx);
4935 });
4936 }
4937
4938 pub fn duplicate_line(&mut self, _: &DuplicateLine, cx: &mut ViewContext<Self>) {
4939 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4940 let buffer = &display_map.buffer_snapshot;
4941 let selections = self.selections.all::<Point>(cx);
4942
4943 let mut edits = Vec::new();
4944 let mut selections_iter = selections.iter().peekable();
4945 while let Some(selection) = selections_iter.next() {
4946 // Avoid duplicating the same lines twice.
4947 let mut rows = selection.spanned_rows(false, &display_map);
4948
4949 while let Some(next_selection) = selections_iter.peek() {
4950 let next_rows = next_selection.spanned_rows(false, &display_map);
4951 if next_rows.start < rows.end {
4952 rows.end = next_rows.end;
4953 selections_iter.next().unwrap();
4954 } else {
4955 break;
4956 }
4957 }
4958
4959 // Copy the text from the selected row region and splice it at the start of the region.
4960 let start = Point::new(rows.start, 0);
4961 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
4962 let text = buffer
4963 .text_for_range(start..end)
4964 .chain(Some("\n"))
4965 .collect::<String>();
4966 edits.push((start..start, text));
4967 }
4968
4969 self.transact(cx, |this, cx| {
4970 this.buffer.update(cx, |buffer, cx| {
4971 buffer.edit(edits, None, cx);
4972 });
4973
4974 this.request_autoscroll(Autoscroll::fit(), cx);
4975 });
4976 }
4977
4978 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
4979 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4980 let buffer = self.buffer.read(cx).snapshot(cx);
4981
4982 let mut edits = Vec::new();
4983 let mut unfold_ranges = Vec::new();
4984 let mut refold_ranges = Vec::new();
4985
4986 let selections = self.selections.all::<Point>(cx);
4987 let mut selections = selections.iter().peekable();
4988 let mut contiguous_row_selections = Vec::new();
4989 let mut new_selections = Vec::new();
4990
4991 while let Some(selection) = selections.next() {
4992 // Find all the selections that span a contiguous row range
4993 let (start_row, end_row) = consume_contiguous_rows(
4994 &mut contiguous_row_selections,
4995 selection,
4996 &display_map,
4997 &mut selections,
4998 );
4999
5000 // Move the text spanned by the row range to be before the line preceding the row range
5001 if start_row > 0 {
5002 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5003 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5004 let insertion_point = display_map
5005 .prev_line_boundary(Point::new(start_row - 1, 0))
5006 .0;
5007
5008 // Don't move lines across excerpts
5009 if buffer
5010 .excerpt_boundaries_in_range((
5011 Bound::Excluded(insertion_point),
5012 Bound::Included(range_to_move.end),
5013 ))
5014 .next()
5015 .is_none()
5016 {
5017 let text = buffer
5018 .text_for_range(range_to_move.clone())
5019 .flat_map(|s| s.chars())
5020 .skip(1)
5021 .chain(['\n'])
5022 .collect::<String>();
5023
5024 edits.push((
5025 buffer.anchor_after(range_to_move.start)
5026 ..buffer.anchor_before(range_to_move.end),
5027 String::new(),
5028 ));
5029 let insertion_anchor = buffer.anchor_after(insertion_point);
5030 edits.push((insertion_anchor..insertion_anchor, text));
5031
5032 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5033
5034 // Move selections up
5035 new_selections.extend(contiguous_row_selections.drain(..).map(
5036 |mut selection| {
5037 selection.start.row -= row_delta;
5038 selection.end.row -= row_delta;
5039 selection
5040 },
5041 ));
5042
5043 // Move folds up
5044 unfold_ranges.push(range_to_move.clone());
5045 for fold in display_map.folds_in_range(
5046 buffer.anchor_before(range_to_move.start)
5047 ..buffer.anchor_after(range_to_move.end),
5048 ) {
5049 let mut start = fold.range.start.to_point(&buffer);
5050 let mut end = fold.range.end.to_point(&buffer);
5051 start.row -= row_delta;
5052 end.row -= row_delta;
5053 refold_ranges.push(start..end);
5054 }
5055 }
5056 }
5057
5058 // If we didn't move line(s), preserve the existing selections
5059 new_selections.append(&mut contiguous_row_selections);
5060 }
5061
5062 self.transact(cx, |this, cx| {
5063 this.unfold_ranges(unfold_ranges, true, true, cx);
5064 this.buffer.update(cx, |buffer, cx| {
5065 for (range, text) in edits {
5066 buffer.edit([(range, text)], None, cx);
5067 }
5068 });
5069 this.fold_ranges(refold_ranges, true, cx);
5070 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5071 s.select(new_selections);
5072 })
5073 });
5074 }
5075
5076 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5077 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5078 let buffer = self.buffer.read(cx).snapshot(cx);
5079
5080 let mut edits = Vec::new();
5081 let mut unfold_ranges = Vec::new();
5082 let mut refold_ranges = Vec::new();
5083
5084 let selections = self.selections.all::<Point>(cx);
5085 let mut selections = selections.iter().peekable();
5086 let mut contiguous_row_selections = Vec::new();
5087 let mut new_selections = Vec::new();
5088
5089 while let Some(selection) = selections.next() {
5090 // Find all the selections that span a contiguous row range
5091 let (start_row, end_row) = consume_contiguous_rows(
5092 &mut contiguous_row_selections,
5093 selection,
5094 &display_map,
5095 &mut selections,
5096 );
5097
5098 // Move the text spanned by the row range to be after the last line of the row range
5099 if end_row <= buffer.max_point().row {
5100 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5101 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5102
5103 // Don't move lines across excerpt boundaries
5104 if buffer
5105 .excerpt_boundaries_in_range((
5106 Bound::Excluded(range_to_move.start),
5107 Bound::Included(insertion_point),
5108 ))
5109 .next()
5110 .is_none()
5111 {
5112 let mut text = String::from("\n");
5113 text.extend(buffer.text_for_range(range_to_move.clone()));
5114 text.pop(); // Drop trailing newline
5115 edits.push((
5116 buffer.anchor_after(range_to_move.start)
5117 ..buffer.anchor_before(range_to_move.end),
5118 String::new(),
5119 ));
5120 let insertion_anchor = buffer.anchor_after(insertion_point);
5121 edits.push((insertion_anchor..insertion_anchor, text));
5122
5123 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5124
5125 // Move selections down
5126 new_selections.extend(contiguous_row_selections.drain(..).map(
5127 |mut selection| {
5128 selection.start.row += row_delta;
5129 selection.end.row += row_delta;
5130 selection
5131 },
5132 ));
5133
5134 // Move folds down
5135 unfold_ranges.push(range_to_move.clone());
5136 for fold in display_map.folds_in_range(
5137 buffer.anchor_before(range_to_move.start)
5138 ..buffer.anchor_after(range_to_move.end),
5139 ) {
5140 let mut start = fold.range.start.to_point(&buffer);
5141 let mut end = fold.range.end.to_point(&buffer);
5142 start.row += row_delta;
5143 end.row += row_delta;
5144 refold_ranges.push(start..end);
5145 }
5146 }
5147 }
5148
5149 // If we didn't move line(s), preserve the existing selections
5150 new_selections.append(&mut contiguous_row_selections);
5151 }
5152
5153 self.transact(cx, |this, cx| {
5154 this.unfold_ranges(unfold_ranges, true, true, cx);
5155 this.buffer.update(cx, |buffer, cx| {
5156 for (range, text) in edits {
5157 buffer.edit([(range, text)], None, cx);
5158 }
5159 });
5160 this.fold_ranges(refold_ranges, true, cx);
5161 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5162 });
5163 }
5164
5165 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5166 let text_layout_details = &self.text_layout_details(cx);
5167 self.transact(cx, |this, cx| {
5168 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5169 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5170 let line_mode = s.line_mode;
5171 s.move_with(|display_map, selection| {
5172 if !selection.is_empty() || line_mode {
5173 return;
5174 }
5175
5176 let mut head = selection.head();
5177 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5178 if head.column() == display_map.line_len(head.row()) {
5179 transpose_offset = display_map
5180 .buffer_snapshot
5181 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5182 }
5183
5184 if transpose_offset == 0 {
5185 return;
5186 }
5187
5188 *head.column_mut() += 1;
5189 head = display_map.clip_point(head, Bias::Right);
5190 let goal = SelectionGoal::HorizontalPosition(
5191 display_map
5192 .x_for_display_point(head, &text_layout_details)
5193 .into(),
5194 );
5195 selection.collapse_to(head, goal);
5196
5197 let transpose_start = display_map
5198 .buffer_snapshot
5199 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5200 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5201 let transpose_end = display_map
5202 .buffer_snapshot
5203 .clip_offset(transpose_offset + 1, Bias::Right);
5204 if let Some(ch) =
5205 display_map.buffer_snapshot.chars_at(transpose_start).next()
5206 {
5207 edits.push((transpose_start..transpose_offset, String::new()));
5208 edits.push((transpose_end..transpose_end, ch.to_string()));
5209 }
5210 }
5211 });
5212 edits
5213 });
5214 this.buffer
5215 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5216 let selections = this.selections.all::<usize>(cx);
5217 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5218 s.select(selections);
5219 });
5220 });
5221 }
5222
5223 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5224 let mut text = String::new();
5225 let buffer = self.buffer.read(cx).snapshot(cx);
5226 let mut selections = self.selections.all::<Point>(cx);
5227 let mut clipboard_selections = Vec::with_capacity(selections.len());
5228 {
5229 let max_point = buffer.max_point();
5230 let mut is_first = true;
5231 for selection in &mut selections {
5232 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5233 if is_entire_line {
5234 selection.start = Point::new(selection.start.row, 0);
5235 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5236 selection.goal = SelectionGoal::None;
5237 }
5238 if is_first {
5239 is_first = false;
5240 } else {
5241 text += "\n";
5242 }
5243 let mut len = 0;
5244 for chunk in buffer.text_for_range(selection.start..selection.end) {
5245 text.push_str(chunk);
5246 len += chunk.len();
5247 }
5248 clipboard_selections.push(ClipboardSelection {
5249 len,
5250 is_entire_line,
5251 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5252 });
5253 }
5254 }
5255
5256 self.transact(cx, |this, cx| {
5257 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5258 s.select(selections);
5259 });
5260 this.insert("", cx);
5261 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5262 });
5263 }
5264
5265 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5266 let selections = self.selections.all::<Point>(cx);
5267 let buffer = self.buffer.read(cx).read(cx);
5268 let mut text = String::new();
5269
5270 let mut clipboard_selections = Vec::with_capacity(selections.len());
5271 {
5272 let max_point = buffer.max_point();
5273 let mut is_first = true;
5274 for selection in selections.iter() {
5275 let mut start = selection.start;
5276 let mut end = selection.end;
5277 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5278 if is_entire_line {
5279 start = Point::new(start.row, 0);
5280 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5281 }
5282 if is_first {
5283 is_first = false;
5284 } else {
5285 text += "\n";
5286 }
5287 let mut len = 0;
5288 for chunk in buffer.text_for_range(start..end) {
5289 text.push_str(chunk);
5290 len += chunk.len();
5291 }
5292 clipboard_selections.push(ClipboardSelection {
5293 len,
5294 is_entire_line,
5295 first_line_indent: buffer.indent_size_for_line(start.row).len,
5296 });
5297 }
5298 }
5299
5300 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5301 }
5302
5303 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5304 if self.read_only(cx) {
5305 return;
5306 }
5307
5308 self.transact(cx, |this, cx| {
5309 if let Some(item) = cx.read_from_clipboard() {
5310 let clipboard_text = Cow::Borrowed(item.text());
5311 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5312 let old_selections = this.selections.all::<usize>(cx);
5313 let all_selections_were_entire_line =
5314 clipboard_selections.iter().all(|s| s.is_entire_line);
5315 let first_selection_indent_column =
5316 clipboard_selections.first().map(|s| s.first_line_indent);
5317 if clipboard_selections.len() != old_selections.len() {
5318 clipboard_selections.drain(..);
5319 }
5320
5321 this.buffer.update(cx, |buffer, cx| {
5322 let snapshot = buffer.read(cx);
5323 let mut start_offset = 0;
5324 let mut edits = Vec::new();
5325 let mut original_indent_columns = Vec::new();
5326 let line_mode = this.selections.line_mode;
5327 for (ix, selection) in old_selections.iter().enumerate() {
5328 let to_insert;
5329 let entire_line;
5330 let original_indent_column;
5331 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5332 let end_offset = start_offset + clipboard_selection.len;
5333 to_insert = &clipboard_text[start_offset..end_offset];
5334 entire_line = clipboard_selection.is_entire_line;
5335 start_offset = end_offset + 1;
5336 original_indent_column =
5337 Some(clipboard_selection.first_line_indent);
5338 } else {
5339 to_insert = clipboard_text.as_str();
5340 entire_line = all_selections_were_entire_line;
5341 original_indent_column = first_selection_indent_column
5342 }
5343
5344 // If the corresponding selection was empty when this slice of the
5345 // clipboard text was written, then the entire line containing the
5346 // selection was copied. If this selection is also currently empty,
5347 // then paste the line before the current line of the buffer.
5348 let range = if selection.is_empty() && !line_mode && entire_line {
5349 let column = selection.start.to_point(&snapshot).column as usize;
5350 let line_start = selection.start - column;
5351 line_start..line_start
5352 } else {
5353 selection.range()
5354 };
5355
5356 edits.push((range, to_insert));
5357 original_indent_columns.extend(original_indent_column);
5358 }
5359 drop(snapshot);
5360
5361 buffer.edit(
5362 edits,
5363 Some(AutoindentMode::Block {
5364 original_indent_columns,
5365 }),
5366 cx,
5367 );
5368 });
5369
5370 let selections = this.selections.all::<usize>(cx);
5371 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5372 } else {
5373 this.insert(&clipboard_text, cx);
5374 }
5375 }
5376 });
5377 }
5378
5379 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5380 if self.read_only(cx) {
5381 return;
5382 }
5383
5384 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5385 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5386 self.change_selections(None, cx, |s| {
5387 s.select_anchors(selections.to_vec());
5388 });
5389 }
5390 self.request_autoscroll(Autoscroll::fit(), cx);
5391 self.unmark_text(cx);
5392 self.refresh_copilot_suggestions(true, cx);
5393 cx.emit(EditorEvent::Edited);
5394 }
5395 }
5396
5397 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5398 if self.read_only(cx) {
5399 return;
5400 }
5401
5402 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5403 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5404 {
5405 self.change_selections(None, cx, |s| {
5406 s.select_anchors(selections.to_vec());
5407 });
5408 }
5409 self.request_autoscroll(Autoscroll::fit(), cx);
5410 self.unmark_text(cx);
5411 self.refresh_copilot_suggestions(true, cx);
5412 cx.emit(EditorEvent::Edited);
5413 }
5414 }
5415
5416 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5417 self.buffer
5418 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5419 }
5420
5421 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5422 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5423 let line_mode = s.line_mode;
5424 s.move_with(|map, selection| {
5425 let cursor = if selection.is_empty() && !line_mode {
5426 movement::left(map, selection.start)
5427 } else {
5428 selection.start
5429 };
5430 selection.collapse_to(cursor, SelectionGoal::None);
5431 });
5432 })
5433 }
5434
5435 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5436 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5437 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5438 })
5439 }
5440
5441 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5442 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5443 let line_mode = s.line_mode;
5444 s.move_with(|map, selection| {
5445 let cursor = if selection.is_empty() && !line_mode {
5446 movement::right(map, selection.end)
5447 } else {
5448 selection.end
5449 };
5450 selection.collapse_to(cursor, SelectionGoal::None)
5451 });
5452 })
5453 }
5454
5455 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5456 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5457 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5458 })
5459 }
5460
5461 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5462 if self.take_rename(true, cx).is_some() {
5463 return;
5464 }
5465
5466 if matches!(self.mode, EditorMode::SingleLine) {
5467 cx.propagate();
5468 return;
5469 }
5470
5471 let text_layout_details = &self.text_layout_details(cx);
5472
5473 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5474 let line_mode = s.line_mode;
5475 s.move_with(|map, selection| {
5476 if !selection.is_empty() && !line_mode {
5477 selection.goal = SelectionGoal::None;
5478 }
5479 let (cursor, goal) = movement::up(
5480 map,
5481 selection.start,
5482 selection.goal,
5483 false,
5484 &text_layout_details,
5485 );
5486 selection.collapse_to(cursor, goal);
5487 });
5488 })
5489 }
5490
5491 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5492 if self.take_rename(true, cx).is_some() {
5493 return;
5494 }
5495
5496 if matches!(self.mode, EditorMode::SingleLine) {
5497 cx.propagate();
5498 return;
5499 }
5500
5501 let text_layout_details = &self.text_layout_details(cx);
5502
5503 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5504 let line_mode = s.line_mode;
5505 s.move_with(|map, selection| {
5506 if !selection.is_empty() && !line_mode {
5507 selection.goal = SelectionGoal::None;
5508 }
5509 let (cursor, goal) = movement::up_by_rows(
5510 map,
5511 selection.start,
5512 action.lines,
5513 selection.goal,
5514 false,
5515 &text_layout_details,
5516 );
5517 selection.collapse_to(cursor, goal);
5518 });
5519 })
5520 }
5521
5522 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5523 if self.take_rename(true, cx).is_some() {
5524 return;
5525 }
5526
5527 if matches!(self.mode, EditorMode::SingleLine) {
5528 cx.propagate();
5529 return;
5530 }
5531
5532 let text_layout_details = &self.text_layout_details(cx);
5533
5534 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5535 let line_mode = s.line_mode;
5536 s.move_with(|map, selection| {
5537 if !selection.is_empty() && !line_mode {
5538 selection.goal = SelectionGoal::None;
5539 }
5540 let (cursor, goal) = movement::down_by_rows(
5541 map,
5542 selection.start,
5543 action.lines,
5544 selection.goal,
5545 false,
5546 &text_layout_details,
5547 );
5548 selection.collapse_to(cursor, goal);
5549 });
5550 })
5551 }
5552
5553 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5554 let text_layout_details = &self.text_layout_details(cx);
5555 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5556 s.move_heads_with(|map, head, goal| {
5557 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5558 })
5559 })
5560 }
5561
5562 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5563 let text_layout_details = &self.text_layout_details(cx);
5564 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5565 s.move_heads_with(|map, head, goal| {
5566 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5567 })
5568 })
5569 }
5570
5571 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5572 if self.take_rename(true, cx).is_some() {
5573 return;
5574 }
5575
5576 if matches!(self.mode, EditorMode::SingleLine) {
5577 cx.propagate();
5578 return;
5579 }
5580
5581 let row_count = if let Some(row_count) = self.visible_line_count() {
5582 row_count as u32 - 1
5583 } else {
5584 return;
5585 };
5586
5587 let autoscroll = if action.center_cursor {
5588 Autoscroll::center()
5589 } else {
5590 Autoscroll::fit()
5591 };
5592
5593 let text_layout_details = &self.text_layout_details(cx);
5594
5595 self.change_selections(Some(autoscroll), cx, |s| {
5596 let line_mode = s.line_mode;
5597 s.move_with(|map, selection| {
5598 if !selection.is_empty() && !line_mode {
5599 selection.goal = SelectionGoal::None;
5600 }
5601 let (cursor, goal) = movement::up_by_rows(
5602 map,
5603 selection.end,
5604 row_count,
5605 selection.goal,
5606 false,
5607 &text_layout_details,
5608 );
5609 selection.collapse_to(cursor, goal);
5610 });
5611 });
5612 }
5613
5614 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5615 let text_layout_details = &self.text_layout_details(cx);
5616 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5617 s.move_heads_with(|map, head, goal| {
5618 movement::up(map, head, goal, false, &text_layout_details)
5619 })
5620 })
5621 }
5622
5623 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5624 self.take_rename(true, cx);
5625
5626 if self.mode == EditorMode::SingleLine {
5627 cx.propagate();
5628 return;
5629 }
5630
5631 let text_layout_details = &self.text_layout_details(cx);
5632 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5633 let line_mode = s.line_mode;
5634 s.move_with(|map, selection| {
5635 if !selection.is_empty() && !line_mode {
5636 selection.goal = SelectionGoal::None;
5637 }
5638 let (cursor, goal) = movement::down(
5639 map,
5640 selection.end,
5641 selection.goal,
5642 false,
5643 &text_layout_details,
5644 );
5645 selection.collapse_to(cursor, goal);
5646 });
5647 });
5648 }
5649
5650 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
5651 if self.take_rename(true, cx).is_some() {
5652 return;
5653 }
5654
5655 if self
5656 .context_menu
5657 .write()
5658 .as_mut()
5659 .map(|menu| menu.select_last(self.project.as_ref(), cx))
5660 .unwrap_or(false)
5661 {
5662 return;
5663 }
5664
5665 if matches!(self.mode, EditorMode::SingleLine) {
5666 cx.propagate();
5667 return;
5668 }
5669
5670 let row_count = if let Some(row_count) = self.visible_line_count() {
5671 row_count as u32 - 1
5672 } else {
5673 return;
5674 };
5675
5676 let autoscroll = if action.center_cursor {
5677 Autoscroll::center()
5678 } else {
5679 Autoscroll::fit()
5680 };
5681
5682 let text_layout_details = &self.text_layout_details(cx);
5683 self.change_selections(Some(autoscroll), cx, |s| {
5684 let line_mode = s.line_mode;
5685 s.move_with(|map, selection| {
5686 if !selection.is_empty() && !line_mode {
5687 selection.goal = SelectionGoal::None;
5688 }
5689 let (cursor, goal) = movement::down_by_rows(
5690 map,
5691 selection.end,
5692 row_count,
5693 selection.goal,
5694 false,
5695 &text_layout_details,
5696 );
5697 selection.collapse_to(cursor, goal);
5698 });
5699 });
5700 }
5701
5702 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
5703 let text_layout_details = &self.text_layout_details(cx);
5704 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5705 s.move_heads_with(|map, head, goal| {
5706 movement::down(map, head, goal, false, &text_layout_details)
5707 })
5708 });
5709 }
5710
5711 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
5712 if let Some(context_menu) = self.context_menu.write().as_mut() {
5713 context_menu.select_first(self.project.as_ref(), cx);
5714 }
5715 }
5716
5717 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
5718 if let Some(context_menu) = self.context_menu.write().as_mut() {
5719 context_menu.select_prev(self.project.as_ref(), cx);
5720 }
5721 }
5722
5723 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
5724 if let Some(context_menu) = self.context_menu.write().as_mut() {
5725 context_menu.select_next(self.project.as_ref(), cx);
5726 }
5727 }
5728
5729 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
5730 if let Some(context_menu) = self.context_menu.write().as_mut() {
5731 context_menu.select_last(self.project.as_ref(), cx);
5732 }
5733 }
5734
5735 pub fn move_to_previous_word_start(
5736 &mut self,
5737 _: &MoveToPreviousWordStart,
5738 cx: &mut ViewContext<Self>,
5739 ) {
5740 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5741 s.move_cursors_with(|map, head, _| {
5742 (
5743 movement::previous_word_start(map, head),
5744 SelectionGoal::None,
5745 )
5746 });
5747 })
5748 }
5749
5750 pub fn move_to_previous_subword_start(
5751 &mut self,
5752 _: &MoveToPreviousSubwordStart,
5753 cx: &mut ViewContext<Self>,
5754 ) {
5755 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5756 s.move_cursors_with(|map, head, _| {
5757 (
5758 movement::previous_subword_start(map, head),
5759 SelectionGoal::None,
5760 )
5761 });
5762 })
5763 }
5764
5765 pub fn select_to_previous_word_start(
5766 &mut self,
5767 _: &SelectToPreviousWordStart,
5768 cx: &mut ViewContext<Self>,
5769 ) {
5770 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5771 s.move_heads_with(|map, head, _| {
5772 (
5773 movement::previous_word_start(map, head),
5774 SelectionGoal::None,
5775 )
5776 });
5777 })
5778 }
5779
5780 pub fn select_to_previous_subword_start(
5781 &mut self,
5782 _: &SelectToPreviousSubwordStart,
5783 cx: &mut ViewContext<Self>,
5784 ) {
5785 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5786 s.move_heads_with(|map, head, _| {
5787 (
5788 movement::previous_subword_start(map, head),
5789 SelectionGoal::None,
5790 )
5791 });
5792 })
5793 }
5794
5795 pub fn delete_to_previous_word_start(
5796 &mut self,
5797 _: &DeleteToPreviousWordStart,
5798 cx: &mut ViewContext<Self>,
5799 ) {
5800 self.transact(cx, |this, cx| {
5801 this.select_autoclose_pair(cx);
5802 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5803 let line_mode = s.line_mode;
5804 s.move_with(|map, selection| {
5805 if selection.is_empty() && !line_mode {
5806 let cursor = movement::previous_word_start(map, selection.head());
5807 selection.set_head(cursor, SelectionGoal::None);
5808 }
5809 });
5810 });
5811 this.insert("", cx);
5812 });
5813 }
5814
5815 pub fn delete_to_previous_subword_start(
5816 &mut self,
5817 _: &DeleteToPreviousSubwordStart,
5818 cx: &mut ViewContext<Self>,
5819 ) {
5820 self.transact(cx, |this, cx| {
5821 this.select_autoclose_pair(cx);
5822 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5823 let line_mode = s.line_mode;
5824 s.move_with(|map, selection| {
5825 if selection.is_empty() && !line_mode {
5826 let cursor = movement::previous_subword_start(map, selection.head());
5827 selection.set_head(cursor, SelectionGoal::None);
5828 }
5829 });
5830 });
5831 this.insert("", cx);
5832 });
5833 }
5834
5835 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
5836 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5837 s.move_cursors_with(|map, head, _| {
5838 (movement::next_word_end(map, head), SelectionGoal::None)
5839 });
5840 })
5841 }
5842
5843 pub fn move_to_next_subword_end(
5844 &mut self,
5845 _: &MoveToNextSubwordEnd,
5846 cx: &mut ViewContext<Self>,
5847 ) {
5848 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5849 s.move_cursors_with(|map, head, _| {
5850 (movement::next_subword_end(map, head), SelectionGoal::None)
5851 });
5852 })
5853 }
5854
5855 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
5856 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5857 s.move_heads_with(|map, head, _| {
5858 (movement::next_word_end(map, head), SelectionGoal::None)
5859 });
5860 })
5861 }
5862
5863 pub fn select_to_next_subword_end(
5864 &mut self,
5865 _: &SelectToNextSubwordEnd,
5866 cx: &mut ViewContext<Self>,
5867 ) {
5868 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5869 s.move_heads_with(|map, head, _| {
5870 (movement::next_subword_end(map, head), SelectionGoal::None)
5871 });
5872 })
5873 }
5874
5875 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
5876 self.transact(cx, |this, cx| {
5877 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5878 let line_mode = s.line_mode;
5879 s.move_with(|map, selection| {
5880 if selection.is_empty() && !line_mode {
5881 let cursor = movement::next_word_end(map, selection.head());
5882 selection.set_head(cursor, SelectionGoal::None);
5883 }
5884 });
5885 });
5886 this.insert("", cx);
5887 });
5888 }
5889
5890 pub fn delete_to_next_subword_end(
5891 &mut self,
5892 _: &DeleteToNextSubwordEnd,
5893 cx: &mut ViewContext<Self>,
5894 ) {
5895 self.transact(cx, |this, cx| {
5896 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5897 s.move_with(|map, selection| {
5898 if selection.is_empty() {
5899 let cursor = movement::next_subword_end(map, selection.head());
5900 selection.set_head(cursor, SelectionGoal::None);
5901 }
5902 });
5903 });
5904 this.insert("", cx);
5905 });
5906 }
5907
5908 pub fn move_to_beginning_of_line(
5909 &mut self,
5910 _: &MoveToBeginningOfLine,
5911 cx: &mut ViewContext<Self>,
5912 ) {
5913 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5914 s.move_cursors_with(|map, head, _| {
5915 (
5916 movement::indented_line_beginning(map, head, true),
5917 SelectionGoal::None,
5918 )
5919 });
5920 })
5921 }
5922
5923 pub fn select_to_beginning_of_line(
5924 &mut self,
5925 action: &SelectToBeginningOfLine,
5926 cx: &mut ViewContext<Self>,
5927 ) {
5928 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5929 s.move_heads_with(|map, head, _| {
5930 (
5931 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
5932 SelectionGoal::None,
5933 )
5934 });
5935 });
5936 }
5937
5938 pub fn delete_to_beginning_of_line(
5939 &mut self,
5940 _: &DeleteToBeginningOfLine,
5941 cx: &mut ViewContext<Self>,
5942 ) {
5943 self.transact(cx, |this, cx| {
5944 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5945 s.move_with(|_, selection| {
5946 selection.reversed = true;
5947 });
5948 });
5949
5950 this.select_to_beginning_of_line(
5951 &SelectToBeginningOfLine {
5952 stop_at_soft_wraps: false,
5953 },
5954 cx,
5955 );
5956 this.backspace(&Backspace, cx);
5957 });
5958 }
5959
5960 pub fn move_to_end_of_line(&mut self, _: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
5961 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5962 s.move_cursors_with(|map, head, _| {
5963 (movement::line_end(map, head, true), SelectionGoal::None)
5964 });
5965 })
5966 }
5967
5968 pub fn select_to_end_of_line(
5969 &mut self,
5970 action: &SelectToEndOfLine,
5971 cx: &mut ViewContext<Self>,
5972 ) {
5973 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5974 s.move_heads_with(|map, head, _| {
5975 (
5976 movement::line_end(map, head, action.stop_at_soft_wraps),
5977 SelectionGoal::None,
5978 )
5979 });
5980 })
5981 }
5982
5983 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
5984 self.transact(cx, |this, cx| {
5985 this.select_to_end_of_line(
5986 &SelectToEndOfLine {
5987 stop_at_soft_wraps: false,
5988 },
5989 cx,
5990 );
5991 this.delete(&Delete, cx);
5992 });
5993 }
5994
5995 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
5996 self.transact(cx, |this, cx| {
5997 this.select_to_end_of_line(
5998 &SelectToEndOfLine {
5999 stop_at_soft_wraps: false,
6000 },
6001 cx,
6002 );
6003 this.cut(&Cut, cx);
6004 });
6005 }
6006
6007 pub fn move_to_start_of_paragraph(
6008 &mut self,
6009 _: &MoveToStartOfParagraph,
6010 cx: &mut ViewContext<Self>,
6011 ) {
6012 if matches!(self.mode, EditorMode::SingleLine) {
6013 cx.propagate();
6014 return;
6015 }
6016
6017 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6018 s.move_with(|map, selection| {
6019 selection.collapse_to(
6020 movement::start_of_paragraph(map, selection.head(), 1),
6021 SelectionGoal::None,
6022 )
6023 });
6024 })
6025 }
6026
6027 pub fn move_to_end_of_paragraph(
6028 &mut self,
6029 _: &MoveToEndOfParagraph,
6030 cx: &mut ViewContext<Self>,
6031 ) {
6032 if matches!(self.mode, EditorMode::SingleLine) {
6033 cx.propagate();
6034 return;
6035 }
6036
6037 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6038 s.move_with(|map, selection| {
6039 selection.collapse_to(
6040 movement::end_of_paragraph(map, selection.head(), 1),
6041 SelectionGoal::None,
6042 )
6043 });
6044 })
6045 }
6046
6047 pub fn select_to_start_of_paragraph(
6048 &mut self,
6049 _: &SelectToStartOfParagraph,
6050 cx: &mut ViewContext<Self>,
6051 ) {
6052 if matches!(self.mode, EditorMode::SingleLine) {
6053 cx.propagate();
6054 return;
6055 }
6056
6057 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6058 s.move_heads_with(|map, head, _| {
6059 (
6060 movement::start_of_paragraph(map, head, 1),
6061 SelectionGoal::None,
6062 )
6063 });
6064 })
6065 }
6066
6067 pub fn select_to_end_of_paragraph(
6068 &mut self,
6069 _: &SelectToEndOfParagraph,
6070 cx: &mut ViewContext<Self>,
6071 ) {
6072 if matches!(self.mode, EditorMode::SingleLine) {
6073 cx.propagate();
6074 return;
6075 }
6076
6077 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6078 s.move_heads_with(|map, head, _| {
6079 (
6080 movement::end_of_paragraph(map, head, 1),
6081 SelectionGoal::None,
6082 )
6083 });
6084 })
6085 }
6086
6087 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6088 if matches!(self.mode, EditorMode::SingleLine) {
6089 cx.propagate();
6090 return;
6091 }
6092
6093 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6094 s.select_ranges(vec![0..0]);
6095 });
6096 }
6097
6098 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6099 let mut selection = self.selections.last::<Point>(cx);
6100 selection.set_head(Point::zero(), SelectionGoal::None);
6101
6102 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6103 s.select(vec![selection]);
6104 });
6105 }
6106
6107 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6108 if matches!(self.mode, EditorMode::SingleLine) {
6109 cx.propagate();
6110 return;
6111 }
6112
6113 let cursor = self.buffer.read(cx).read(cx).len();
6114 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6115 s.select_ranges(vec![cursor..cursor])
6116 });
6117 }
6118
6119 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6120 self.nav_history = nav_history;
6121 }
6122
6123 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6124 self.nav_history.as_ref()
6125 }
6126
6127 fn push_to_nav_history(
6128 &mut self,
6129 cursor_anchor: Anchor,
6130 new_position: Option<Point>,
6131 cx: &mut ViewContext<Self>,
6132 ) {
6133 if let Some(nav_history) = self.nav_history.as_mut() {
6134 let buffer = self.buffer.read(cx).read(cx);
6135 let cursor_position = cursor_anchor.to_point(&buffer);
6136 let scroll_state = self.scroll_manager.anchor();
6137 let scroll_top_row = scroll_state.top_row(&buffer);
6138 drop(buffer);
6139
6140 if let Some(new_position) = new_position {
6141 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6142 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6143 return;
6144 }
6145 }
6146
6147 nav_history.push(
6148 Some(NavigationData {
6149 cursor_anchor,
6150 cursor_position,
6151 scroll_anchor: scroll_state,
6152 scroll_top_row,
6153 }),
6154 cx,
6155 );
6156 }
6157 }
6158
6159 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6160 let buffer = self.buffer.read(cx).snapshot(cx);
6161 let mut selection = self.selections.first::<usize>(cx);
6162 selection.set_head(buffer.len(), SelectionGoal::None);
6163 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6164 s.select(vec![selection]);
6165 });
6166 }
6167
6168 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6169 let end = self.buffer.read(cx).read(cx).len();
6170 self.change_selections(None, cx, |s| {
6171 s.select_ranges(vec![0..end]);
6172 });
6173 }
6174
6175 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6176 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6177 let mut selections = self.selections.all::<Point>(cx);
6178 let max_point = display_map.buffer_snapshot.max_point();
6179 for selection in &mut selections {
6180 let rows = selection.spanned_rows(true, &display_map);
6181 selection.start = Point::new(rows.start, 0);
6182 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6183 selection.reversed = false;
6184 }
6185 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6186 s.select(selections);
6187 });
6188 }
6189
6190 pub fn split_selection_into_lines(
6191 &mut self,
6192 _: &SplitSelectionIntoLines,
6193 cx: &mut ViewContext<Self>,
6194 ) {
6195 let mut to_unfold = Vec::new();
6196 let mut new_selection_ranges = Vec::new();
6197 {
6198 let selections = self.selections.all::<Point>(cx);
6199 let buffer = self.buffer.read(cx).read(cx);
6200 for selection in selections {
6201 for row in selection.start.row..selection.end.row {
6202 let cursor = Point::new(row, buffer.line_len(row));
6203 new_selection_ranges.push(cursor..cursor);
6204 }
6205 new_selection_ranges.push(selection.end..selection.end);
6206 to_unfold.push(selection.start..selection.end);
6207 }
6208 }
6209 self.unfold_ranges(to_unfold, true, true, cx);
6210 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6211 s.select_ranges(new_selection_ranges);
6212 });
6213 }
6214
6215 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6216 self.add_selection(true, cx);
6217 }
6218
6219 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6220 self.add_selection(false, cx);
6221 }
6222
6223 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6224 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6225 let mut selections = self.selections.all::<Point>(cx);
6226 let text_layout_details = self.text_layout_details(cx);
6227 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6228 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6229 let range = oldest_selection.display_range(&display_map).sorted();
6230
6231 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6232 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6233 let positions = start_x.min(end_x)..start_x.max(end_x);
6234
6235 selections.clear();
6236 let mut stack = Vec::new();
6237 for row in range.start.row()..=range.end.row() {
6238 if let Some(selection) = self.selections.build_columnar_selection(
6239 &display_map,
6240 row,
6241 &positions,
6242 oldest_selection.reversed,
6243 &text_layout_details,
6244 ) {
6245 stack.push(selection.id);
6246 selections.push(selection);
6247 }
6248 }
6249
6250 if above {
6251 stack.reverse();
6252 }
6253
6254 AddSelectionsState { above, stack }
6255 });
6256
6257 let last_added_selection = *state.stack.last().unwrap();
6258 let mut new_selections = Vec::new();
6259 if above == state.above {
6260 let end_row = if above {
6261 0
6262 } else {
6263 display_map.max_point().row()
6264 };
6265
6266 'outer: for selection in selections {
6267 if selection.id == last_added_selection {
6268 let range = selection.display_range(&display_map).sorted();
6269 debug_assert_eq!(range.start.row(), range.end.row());
6270 let mut row = range.start.row();
6271 let positions =
6272 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6273 px(start)..px(end)
6274 } else {
6275 let start_x =
6276 display_map.x_for_display_point(range.start, &text_layout_details);
6277 let end_x =
6278 display_map.x_for_display_point(range.end, &text_layout_details);
6279 start_x.min(end_x)..start_x.max(end_x)
6280 };
6281
6282 while row != end_row {
6283 if above {
6284 row -= 1;
6285 } else {
6286 row += 1;
6287 }
6288
6289 if let Some(new_selection) = self.selections.build_columnar_selection(
6290 &display_map,
6291 row,
6292 &positions,
6293 selection.reversed,
6294 &text_layout_details,
6295 ) {
6296 state.stack.push(new_selection.id);
6297 if above {
6298 new_selections.push(new_selection);
6299 new_selections.push(selection);
6300 } else {
6301 new_selections.push(selection);
6302 new_selections.push(new_selection);
6303 }
6304
6305 continue 'outer;
6306 }
6307 }
6308 }
6309
6310 new_selections.push(selection);
6311 }
6312 } else {
6313 new_selections = selections;
6314 new_selections.retain(|s| s.id != last_added_selection);
6315 state.stack.pop();
6316 }
6317
6318 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6319 s.select(new_selections);
6320 });
6321 if state.stack.len() > 1 {
6322 self.add_selections_state = Some(state);
6323 }
6324 }
6325
6326 pub fn select_next_match_internal(
6327 &mut self,
6328 display_map: &DisplaySnapshot,
6329 replace_newest: bool,
6330 autoscroll: Option<Autoscroll>,
6331 cx: &mut ViewContext<Self>,
6332 ) -> Result<()> {
6333 fn select_next_match_ranges(
6334 this: &mut Editor,
6335 range: Range<usize>,
6336 replace_newest: bool,
6337 auto_scroll: Option<Autoscroll>,
6338 cx: &mut ViewContext<Editor>,
6339 ) {
6340 this.unfold_ranges([range.clone()], false, true, cx);
6341 this.change_selections(auto_scroll, cx, |s| {
6342 if replace_newest {
6343 s.delete(s.newest_anchor().id);
6344 }
6345 s.insert_range(range.clone());
6346 });
6347 }
6348
6349 let buffer = &display_map.buffer_snapshot;
6350 let mut selections = self.selections.all::<usize>(cx);
6351 if let Some(mut select_next_state) = self.select_next_state.take() {
6352 let query = &select_next_state.query;
6353 if !select_next_state.done {
6354 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6355 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6356 let mut next_selected_range = None;
6357
6358 let bytes_after_last_selection =
6359 buffer.bytes_in_range(last_selection.end..buffer.len());
6360 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6361 let query_matches = query
6362 .stream_find_iter(bytes_after_last_selection)
6363 .map(|result| (last_selection.end, result))
6364 .chain(
6365 query
6366 .stream_find_iter(bytes_before_first_selection)
6367 .map(|result| (0, result)),
6368 );
6369
6370 for (start_offset, query_match) in query_matches {
6371 let query_match = query_match.unwrap(); // can only fail due to I/O
6372 let offset_range =
6373 start_offset + query_match.start()..start_offset + query_match.end();
6374 let display_range = offset_range.start.to_display_point(&display_map)
6375 ..offset_range.end.to_display_point(&display_map);
6376
6377 if !select_next_state.wordwise
6378 || (!movement::is_inside_word(&display_map, display_range.start)
6379 && !movement::is_inside_word(&display_map, display_range.end))
6380 {
6381 // TODO: This is n^2, because we might check all the selections
6382 if selections
6383 .iter()
6384 .find(|selection| selection.range().overlaps(&offset_range))
6385 .is_none()
6386 {
6387 next_selected_range = Some(offset_range);
6388 break;
6389 }
6390 }
6391 }
6392
6393 if let Some(next_selected_range) = next_selected_range {
6394 select_next_match_ranges(
6395 self,
6396 next_selected_range,
6397 replace_newest,
6398 autoscroll,
6399 cx,
6400 );
6401 } else {
6402 select_next_state.done = true;
6403 }
6404 }
6405
6406 self.select_next_state = Some(select_next_state);
6407 } else {
6408 let mut only_carets = true;
6409 let mut same_text_selected = true;
6410 let mut selected_text = None;
6411
6412 let mut selections_iter = selections.iter().peekable();
6413 while let Some(selection) = selections_iter.next() {
6414 if selection.start != selection.end {
6415 only_carets = false;
6416 }
6417
6418 if same_text_selected {
6419 if selected_text.is_none() {
6420 selected_text =
6421 Some(buffer.text_for_range(selection.range()).collect::<String>());
6422 }
6423
6424 if let Some(next_selection) = selections_iter.peek() {
6425 if next_selection.range().len() == selection.range().len() {
6426 let next_selected_text = buffer
6427 .text_for_range(next_selection.range())
6428 .collect::<String>();
6429 if Some(next_selected_text) != selected_text {
6430 same_text_selected = false;
6431 selected_text = None;
6432 }
6433 } else {
6434 same_text_selected = false;
6435 selected_text = None;
6436 }
6437 }
6438 }
6439 }
6440
6441 if only_carets {
6442 for selection in &mut selections {
6443 let word_range = movement::surrounding_word(
6444 &display_map,
6445 selection.start.to_display_point(&display_map),
6446 );
6447 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6448 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6449 selection.goal = SelectionGoal::None;
6450 selection.reversed = false;
6451 select_next_match_ranges(
6452 self,
6453 selection.start..selection.end,
6454 replace_newest,
6455 autoscroll,
6456 cx,
6457 );
6458 }
6459
6460 if selections.len() == 1 {
6461 let selection = selections
6462 .last()
6463 .expect("ensured that there's only one selection");
6464 let query = buffer
6465 .text_for_range(selection.start..selection.end)
6466 .collect::<String>();
6467 let is_empty = query.is_empty();
6468 let select_state = SelectNextState {
6469 query: AhoCorasick::new(&[query])?,
6470 wordwise: true,
6471 done: is_empty,
6472 };
6473 self.select_next_state = Some(select_state);
6474 } else {
6475 self.select_next_state = None;
6476 }
6477 } else if let Some(selected_text) = selected_text {
6478 self.select_next_state = Some(SelectNextState {
6479 query: AhoCorasick::new(&[selected_text])?,
6480 wordwise: false,
6481 done: false,
6482 });
6483 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6484 }
6485 }
6486 Ok(())
6487 }
6488
6489 pub fn select_all_matches(
6490 &mut self,
6491 _action: &SelectAllMatches,
6492 cx: &mut ViewContext<Self>,
6493 ) -> Result<()> {
6494 self.push_to_selection_history();
6495 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6496
6497 self.select_next_match_internal(&display_map, false, None, cx)?;
6498 let Some(select_next_state) = self.select_next_state.as_mut() else {
6499 return Ok(());
6500 };
6501 if select_next_state.done {
6502 return Ok(());
6503 }
6504
6505 let mut new_selections = self.selections.all::<usize>(cx);
6506
6507 let buffer = &display_map.buffer_snapshot;
6508 let query_matches = select_next_state
6509 .query
6510 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6511
6512 for query_match in query_matches {
6513 let query_match = query_match.unwrap(); // can only fail due to I/O
6514 let offset_range = query_match.start()..query_match.end();
6515 let display_range = offset_range.start.to_display_point(&display_map)
6516 ..offset_range.end.to_display_point(&display_map);
6517
6518 if !select_next_state.wordwise
6519 || (!movement::is_inside_word(&display_map, display_range.start)
6520 && !movement::is_inside_word(&display_map, display_range.end))
6521 {
6522 self.selections.change_with(cx, |selections| {
6523 new_selections.push(Selection {
6524 id: selections.new_selection_id(),
6525 start: offset_range.start,
6526 end: offset_range.end,
6527 reversed: false,
6528 goal: SelectionGoal::None,
6529 });
6530 });
6531 }
6532 }
6533
6534 new_selections.sort_by_key(|selection| selection.start);
6535 let mut ix = 0;
6536 while ix + 1 < new_selections.len() {
6537 let current_selection = &new_selections[ix];
6538 let next_selection = &new_selections[ix + 1];
6539 if current_selection.range().overlaps(&next_selection.range()) {
6540 if current_selection.id < next_selection.id {
6541 new_selections.remove(ix + 1);
6542 } else {
6543 new_selections.remove(ix);
6544 }
6545 } else {
6546 ix += 1;
6547 }
6548 }
6549
6550 select_next_state.done = true;
6551 self.unfold_ranges(
6552 new_selections.iter().map(|selection| selection.range()),
6553 false,
6554 false,
6555 cx,
6556 );
6557 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6558 selections.select(new_selections)
6559 });
6560
6561 Ok(())
6562 }
6563
6564 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6565 self.push_to_selection_history();
6566 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6567 self.select_next_match_internal(
6568 &display_map,
6569 action.replace_newest,
6570 Some(Autoscroll::newest()),
6571 cx,
6572 )?;
6573 Ok(())
6574 }
6575
6576 pub fn select_previous(
6577 &mut self,
6578 action: &SelectPrevious,
6579 cx: &mut ViewContext<Self>,
6580 ) -> Result<()> {
6581 self.push_to_selection_history();
6582 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6583 let buffer = &display_map.buffer_snapshot;
6584 let mut selections = self.selections.all::<usize>(cx);
6585 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6586 let query = &select_prev_state.query;
6587 if !select_prev_state.done {
6588 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6589 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6590 let mut next_selected_range = None;
6591 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6592 let bytes_before_last_selection =
6593 buffer.reversed_bytes_in_range(0..last_selection.start);
6594 let bytes_after_first_selection =
6595 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6596 let query_matches = query
6597 .stream_find_iter(bytes_before_last_selection)
6598 .map(|result| (last_selection.start, result))
6599 .chain(
6600 query
6601 .stream_find_iter(bytes_after_first_selection)
6602 .map(|result| (buffer.len(), result)),
6603 );
6604 for (end_offset, query_match) in query_matches {
6605 let query_match = query_match.unwrap(); // can only fail due to I/O
6606 let offset_range =
6607 end_offset - query_match.end()..end_offset - query_match.start();
6608 let display_range = offset_range.start.to_display_point(&display_map)
6609 ..offset_range.end.to_display_point(&display_map);
6610
6611 if !select_prev_state.wordwise
6612 || (!movement::is_inside_word(&display_map, display_range.start)
6613 && !movement::is_inside_word(&display_map, display_range.end))
6614 {
6615 next_selected_range = Some(offset_range);
6616 break;
6617 }
6618 }
6619
6620 if let Some(next_selected_range) = next_selected_range {
6621 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6622 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6623 if action.replace_newest {
6624 s.delete(s.newest_anchor().id);
6625 }
6626 s.insert_range(next_selected_range);
6627 });
6628 } else {
6629 select_prev_state.done = true;
6630 }
6631 }
6632
6633 self.select_prev_state = Some(select_prev_state);
6634 } else {
6635 let mut only_carets = true;
6636 let mut same_text_selected = true;
6637 let mut selected_text = None;
6638
6639 let mut selections_iter = selections.iter().peekable();
6640 while let Some(selection) = selections_iter.next() {
6641 if selection.start != selection.end {
6642 only_carets = false;
6643 }
6644
6645 if same_text_selected {
6646 if selected_text.is_none() {
6647 selected_text =
6648 Some(buffer.text_for_range(selection.range()).collect::<String>());
6649 }
6650
6651 if let Some(next_selection) = selections_iter.peek() {
6652 if next_selection.range().len() == selection.range().len() {
6653 let next_selected_text = buffer
6654 .text_for_range(next_selection.range())
6655 .collect::<String>();
6656 if Some(next_selected_text) != selected_text {
6657 same_text_selected = false;
6658 selected_text = None;
6659 }
6660 } else {
6661 same_text_selected = false;
6662 selected_text = None;
6663 }
6664 }
6665 }
6666 }
6667
6668 if only_carets {
6669 for selection in &mut selections {
6670 let word_range = movement::surrounding_word(
6671 &display_map,
6672 selection.start.to_display_point(&display_map),
6673 );
6674 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6675 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6676 selection.goal = SelectionGoal::None;
6677 selection.reversed = false;
6678 }
6679 if selections.len() == 1 {
6680 let selection = selections
6681 .last()
6682 .expect("ensured that there's only one selection");
6683 let query = buffer
6684 .text_for_range(selection.start..selection.end)
6685 .collect::<String>();
6686 let is_empty = query.is_empty();
6687 let select_state = SelectNextState {
6688 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
6689 wordwise: true,
6690 done: is_empty,
6691 };
6692 self.select_prev_state = Some(select_state);
6693 } else {
6694 self.select_prev_state = None;
6695 }
6696
6697 self.unfold_ranges(
6698 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
6699 false,
6700 true,
6701 cx,
6702 );
6703 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6704 s.select(selections);
6705 });
6706 } else if let Some(selected_text) = selected_text {
6707 self.select_prev_state = Some(SelectNextState {
6708 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
6709 wordwise: false,
6710 done: false,
6711 });
6712 self.select_previous(action, cx)?;
6713 }
6714 }
6715 Ok(())
6716 }
6717
6718 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
6719 let text_layout_details = &self.text_layout_details(cx);
6720 self.transact(cx, |this, cx| {
6721 let mut selections = this.selections.all::<Point>(cx);
6722 let mut edits = Vec::new();
6723 let mut selection_edit_ranges = Vec::new();
6724 let mut last_toggled_row = None;
6725 let snapshot = this.buffer.read(cx).read(cx);
6726 let empty_str: Arc<str> = "".into();
6727 let mut suffixes_inserted = Vec::new();
6728
6729 fn comment_prefix_range(
6730 snapshot: &MultiBufferSnapshot,
6731 row: u32,
6732 comment_prefix: &str,
6733 comment_prefix_whitespace: &str,
6734 ) -> Range<Point> {
6735 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
6736
6737 let mut line_bytes = snapshot
6738 .bytes_in_range(start..snapshot.max_point())
6739 .flatten()
6740 .copied();
6741
6742 // If this line currently begins with the line comment prefix, then record
6743 // the range containing the prefix.
6744 if line_bytes
6745 .by_ref()
6746 .take(comment_prefix.len())
6747 .eq(comment_prefix.bytes())
6748 {
6749 // Include any whitespace that matches the comment prefix.
6750 let matching_whitespace_len = line_bytes
6751 .zip(comment_prefix_whitespace.bytes())
6752 .take_while(|(a, b)| a == b)
6753 .count() as u32;
6754 let end = Point::new(
6755 start.row,
6756 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
6757 );
6758 start..end
6759 } else {
6760 start..start
6761 }
6762 }
6763
6764 fn comment_suffix_range(
6765 snapshot: &MultiBufferSnapshot,
6766 row: u32,
6767 comment_suffix: &str,
6768 comment_suffix_has_leading_space: bool,
6769 ) -> Range<Point> {
6770 let end = Point::new(row, snapshot.line_len(row));
6771 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
6772
6773 let mut line_end_bytes = snapshot
6774 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
6775 .flatten()
6776 .copied();
6777
6778 let leading_space_len = if suffix_start_column > 0
6779 && line_end_bytes.next() == Some(b' ')
6780 && comment_suffix_has_leading_space
6781 {
6782 1
6783 } else {
6784 0
6785 };
6786
6787 // If this line currently begins with the line comment prefix, then record
6788 // the range containing the prefix.
6789 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
6790 let start = Point::new(end.row, suffix_start_column - leading_space_len);
6791 start..end
6792 } else {
6793 end..end
6794 }
6795 }
6796
6797 // TODO: Handle selections that cross excerpts
6798 for selection in &mut selections {
6799 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
6800 let language = if let Some(language) =
6801 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
6802 {
6803 language
6804 } else {
6805 continue;
6806 };
6807
6808 selection_edit_ranges.clear();
6809
6810 // If multiple selections contain a given row, avoid processing that
6811 // row more than once.
6812 let mut start_row = selection.start.row;
6813 if last_toggled_row == Some(start_row) {
6814 start_row += 1;
6815 }
6816 let end_row =
6817 if selection.end.row > selection.start.row && selection.end.column == 0 {
6818 selection.end.row - 1
6819 } else {
6820 selection.end.row
6821 };
6822 last_toggled_row = Some(end_row);
6823
6824 if start_row > end_row {
6825 continue;
6826 }
6827
6828 // If the language has line comments, toggle those.
6829 if let Some(full_comment_prefix) = language
6830 .line_comment_prefixes()
6831 .and_then(|prefixes| prefixes.first())
6832 {
6833 // Split the comment prefix's trailing whitespace into a separate string,
6834 // as that portion won't be used for detecting if a line is a comment.
6835 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6836 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6837 let mut all_selection_lines_are_comments = true;
6838
6839 for row in start_row..=end_row {
6840 if start_row < end_row && snapshot.is_line_blank(row) {
6841 continue;
6842 }
6843
6844 let prefix_range = comment_prefix_range(
6845 snapshot.deref(),
6846 row,
6847 comment_prefix,
6848 comment_prefix_whitespace,
6849 );
6850 if prefix_range.is_empty() {
6851 all_selection_lines_are_comments = false;
6852 }
6853 selection_edit_ranges.push(prefix_range);
6854 }
6855
6856 if all_selection_lines_are_comments {
6857 edits.extend(
6858 selection_edit_ranges
6859 .iter()
6860 .cloned()
6861 .map(|range| (range, empty_str.clone())),
6862 );
6863 } else {
6864 let min_column = selection_edit_ranges
6865 .iter()
6866 .map(|r| r.start.column)
6867 .min()
6868 .unwrap_or(0);
6869 edits.extend(selection_edit_ranges.iter().map(|range| {
6870 let position = Point::new(range.start.row, min_column);
6871 (position..position, full_comment_prefix.clone())
6872 }));
6873 }
6874 } else if let Some((full_comment_prefix, comment_suffix)) =
6875 language.block_comment_delimiters()
6876 {
6877 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
6878 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
6879 let prefix_range = comment_prefix_range(
6880 snapshot.deref(),
6881 start_row,
6882 comment_prefix,
6883 comment_prefix_whitespace,
6884 );
6885 let suffix_range = comment_suffix_range(
6886 snapshot.deref(),
6887 end_row,
6888 comment_suffix.trim_start_matches(' '),
6889 comment_suffix.starts_with(' '),
6890 );
6891
6892 if prefix_range.is_empty() || suffix_range.is_empty() {
6893 edits.push((
6894 prefix_range.start..prefix_range.start,
6895 full_comment_prefix.clone(),
6896 ));
6897 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
6898 suffixes_inserted.push((end_row, comment_suffix.len()));
6899 } else {
6900 edits.push((prefix_range, empty_str.clone()));
6901 edits.push((suffix_range, empty_str.clone()));
6902 }
6903 } else {
6904 continue;
6905 }
6906 }
6907
6908 drop(snapshot);
6909 this.buffer.update(cx, |buffer, cx| {
6910 buffer.edit(edits, None, cx);
6911 });
6912
6913 // Adjust selections so that they end before any comment suffixes that
6914 // were inserted.
6915 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
6916 let mut selections = this.selections.all::<Point>(cx);
6917 let snapshot = this.buffer.read(cx).read(cx);
6918 for selection in &mut selections {
6919 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
6920 match row.cmp(&selection.end.row) {
6921 Ordering::Less => {
6922 suffixes_inserted.next();
6923 continue;
6924 }
6925 Ordering::Greater => break,
6926 Ordering::Equal => {
6927 if selection.end.column == snapshot.line_len(row) {
6928 if selection.is_empty() {
6929 selection.start.column -= suffix_len as u32;
6930 }
6931 selection.end.column -= suffix_len as u32;
6932 }
6933 break;
6934 }
6935 }
6936 }
6937 }
6938
6939 drop(snapshot);
6940 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6941
6942 let selections = this.selections.all::<Point>(cx);
6943 let selections_on_single_row = selections.windows(2).all(|selections| {
6944 selections[0].start.row == selections[1].start.row
6945 && selections[0].end.row == selections[1].end.row
6946 && selections[0].start.row == selections[0].end.row
6947 });
6948 let selections_selecting = selections
6949 .iter()
6950 .any(|selection| selection.start != selection.end);
6951 let advance_downwards = action.advance_downwards
6952 && selections_on_single_row
6953 && !selections_selecting
6954 && this.mode != EditorMode::SingleLine;
6955
6956 if advance_downwards {
6957 let snapshot = this.buffer.read(cx).snapshot(cx);
6958
6959 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6960 s.move_cursors_with(|display_snapshot, display_point, _| {
6961 let mut point = display_point.to_point(display_snapshot);
6962 point.row += 1;
6963 point = snapshot.clip_point(point, Bias::Left);
6964 let display_point = point.to_display_point(display_snapshot);
6965 let goal = SelectionGoal::HorizontalPosition(
6966 display_snapshot
6967 .x_for_display_point(display_point, &text_layout_details)
6968 .into(),
6969 );
6970 (display_point, goal)
6971 })
6972 });
6973 }
6974 });
6975 }
6976
6977 pub fn select_larger_syntax_node(
6978 &mut self,
6979 _: &SelectLargerSyntaxNode,
6980 cx: &mut ViewContext<Self>,
6981 ) {
6982 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6983 let buffer = self.buffer.read(cx).snapshot(cx);
6984 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
6985
6986 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
6987 let mut selected_larger_node = false;
6988 let new_selections = old_selections
6989 .iter()
6990 .map(|selection| {
6991 let old_range = selection.start..selection.end;
6992 let mut new_range = old_range.clone();
6993 while let Some(containing_range) =
6994 buffer.range_for_syntax_ancestor(new_range.clone())
6995 {
6996 new_range = containing_range;
6997 if !display_map.intersects_fold(new_range.start)
6998 && !display_map.intersects_fold(new_range.end)
6999 {
7000 break;
7001 }
7002 }
7003
7004 selected_larger_node |= new_range != old_range;
7005 Selection {
7006 id: selection.id,
7007 start: new_range.start,
7008 end: new_range.end,
7009 goal: SelectionGoal::None,
7010 reversed: selection.reversed,
7011 }
7012 })
7013 .collect::<Vec<_>>();
7014
7015 if selected_larger_node {
7016 stack.push(old_selections);
7017 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7018 s.select(new_selections);
7019 });
7020 }
7021 self.select_larger_syntax_node_stack = stack;
7022 }
7023
7024 pub fn select_smaller_syntax_node(
7025 &mut self,
7026 _: &SelectSmallerSyntaxNode,
7027 cx: &mut ViewContext<Self>,
7028 ) {
7029 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7030 if let Some(selections) = stack.pop() {
7031 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7032 s.select(selections.to_vec());
7033 });
7034 }
7035 self.select_larger_syntax_node_stack = stack;
7036 }
7037
7038 pub fn move_to_enclosing_bracket(
7039 &mut self,
7040 _: &MoveToEnclosingBracket,
7041 cx: &mut ViewContext<Self>,
7042 ) {
7043 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7044 s.move_offsets_with(|snapshot, selection| {
7045 let Some(enclosing_bracket_ranges) =
7046 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7047 else {
7048 return;
7049 };
7050
7051 let mut best_length = usize::MAX;
7052 let mut best_inside = false;
7053 let mut best_in_bracket_range = false;
7054 let mut best_destination = None;
7055 for (open, close) in enclosing_bracket_ranges {
7056 let close = close.to_inclusive();
7057 let length = close.end() - open.start;
7058 let inside = selection.start >= open.end && selection.end <= *close.start();
7059 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7060 || close.contains(&selection.head());
7061
7062 // If best is next to a bracket and current isn't, skip
7063 if !in_bracket_range && best_in_bracket_range {
7064 continue;
7065 }
7066
7067 // Prefer smaller lengths unless best is inside and current isn't
7068 if length > best_length && (best_inside || !inside) {
7069 continue;
7070 }
7071
7072 best_length = length;
7073 best_inside = inside;
7074 best_in_bracket_range = in_bracket_range;
7075 best_destination = Some(
7076 if close.contains(&selection.start) && close.contains(&selection.end) {
7077 if inside {
7078 open.end
7079 } else {
7080 open.start
7081 }
7082 } else {
7083 if inside {
7084 *close.start()
7085 } else {
7086 *close.end()
7087 }
7088 },
7089 );
7090 }
7091
7092 if let Some(destination) = best_destination {
7093 selection.collapse_to(destination, SelectionGoal::None);
7094 }
7095 })
7096 });
7097 }
7098
7099 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7100 self.end_selection(cx);
7101 self.selection_history.mode = SelectionHistoryMode::Undoing;
7102 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7103 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7104 self.select_next_state = entry.select_next_state;
7105 self.select_prev_state = entry.select_prev_state;
7106 self.add_selections_state = entry.add_selections_state;
7107 self.request_autoscroll(Autoscroll::newest(), cx);
7108 }
7109 self.selection_history.mode = SelectionHistoryMode::Normal;
7110 }
7111
7112 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7113 self.end_selection(cx);
7114 self.selection_history.mode = SelectionHistoryMode::Redoing;
7115 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7116 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7117 self.select_next_state = entry.select_next_state;
7118 self.select_prev_state = entry.select_prev_state;
7119 self.add_selections_state = entry.add_selections_state;
7120 self.request_autoscroll(Autoscroll::newest(), cx);
7121 }
7122 self.selection_history.mode = SelectionHistoryMode::Normal;
7123 }
7124
7125 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7126 self.go_to_diagnostic_impl(Direction::Next, cx)
7127 }
7128
7129 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7130 self.go_to_diagnostic_impl(Direction::Prev, cx)
7131 }
7132
7133 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7134 let buffer = self.buffer.read(cx).snapshot(cx);
7135 let selection = self.selections.newest::<usize>(cx);
7136
7137 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7138 if direction == Direction::Next {
7139 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7140 let (group_id, jump_to) = popover.activation_info();
7141 if self.activate_diagnostics(group_id, cx) {
7142 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7143 let mut new_selection = s.newest_anchor().clone();
7144 new_selection.collapse_to(jump_to, SelectionGoal::None);
7145 s.select_anchors(vec![new_selection.clone()]);
7146 });
7147 }
7148 return;
7149 }
7150 }
7151
7152 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7153 active_diagnostics
7154 .primary_range
7155 .to_offset(&buffer)
7156 .to_inclusive()
7157 });
7158 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7159 if active_primary_range.contains(&selection.head()) {
7160 *active_primary_range.end()
7161 } else {
7162 selection.head()
7163 }
7164 } else {
7165 selection.head()
7166 };
7167
7168 loop {
7169 let mut diagnostics = if direction == Direction::Prev {
7170 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7171 } else {
7172 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7173 };
7174 let group = diagnostics.find_map(|entry| {
7175 if entry.diagnostic.is_primary
7176 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7177 && !entry.range.is_empty()
7178 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7179 && !entry.range.contains(&search_start)
7180 {
7181 Some((entry.range, entry.diagnostic.group_id))
7182 } else {
7183 None
7184 }
7185 });
7186
7187 if let Some((primary_range, group_id)) = group {
7188 if self.activate_diagnostics(group_id, cx) {
7189 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7190 s.select(vec![Selection {
7191 id: selection.id,
7192 start: primary_range.start,
7193 end: primary_range.start,
7194 reversed: false,
7195 goal: SelectionGoal::None,
7196 }]);
7197 });
7198 }
7199 break;
7200 } else {
7201 // Cycle around to the start of the buffer, potentially moving back to the start of
7202 // the currently active diagnostic.
7203 active_primary_range.take();
7204 if direction == Direction::Prev {
7205 if search_start == buffer.len() {
7206 break;
7207 } else {
7208 search_start = buffer.len();
7209 }
7210 } else if search_start == 0 {
7211 break;
7212 } else {
7213 search_start = 0;
7214 }
7215 }
7216 }
7217 }
7218
7219 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7220 let snapshot = self
7221 .display_map
7222 .update(cx, |display_map, cx| display_map.snapshot(cx));
7223 let selection = self.selections.newest::<Point>(cx);
7224
7225 if !self.seek_in_direction(
7226 &snapshot,
7227 selection.head(),
7228 false,
7229 snapshot
7230 .buffer_snapshot
7231 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7232 cx,
7233 ) {
7234 let wrapped_point = Point::zero();
7235 self.seek_in_direction(
7236 &snapshot,
7237 wrapped_point,
7238 true,
7239 snapshot
7240 .buffer_snapshot
7241 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7242 cx,
7243 );
7244 }
7245 }
7246
7247 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7248 let snapshot = self
7249 .display_map
7250 .update(cx, |display_map, cx| display_map.snapshot(cx));
7251 let selection = self.selections.newest::<Point>(cx);
7252
7253 if !self.seek_in_direction(
7254 &snapshot,
7255 selection.head(),
7256 false,
7257 snapshot
7258 .buffer_snapshot
7259 .git_diff_hunks_in_range_rev(0..selection.head().row),
7260 cx,
7261 ) {
7262 let wrapped_point = snapshot.buffer_snapshot.max_point();
7263 self.seek_in_direction(
7264 &snapshot,
7265 wrapped_point,
7266 true,
7267 snapshot
7268 .buffer_snapshot
7269 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7270 cx,
7271 );
7272 }
7273 }
7274
7275 fn seek_in_direction(
7276 &mut self,
7277 snapshot: &DisplaySnapshot,
7278 initial_point: Point,
7279 is_wrapped: bool,
7280 hunks: impl Iterator<Item = DiffHunk<u32>>,
7281 cx: &mut ViewContext<Editor>,
7282 ) -> bool {
7283 let display_point = initial_point.to_display_point(snapshot);
7284 let mut hunks = hunks
7285 .map(|hunk| diff_hunk_to_display(hunk, &snapshot))
7286 .filter(|hunk| {
7287 if is_wrapped {
7288 true
7289 } else {
7290 !hunk.contains_display_row(display_point.row())
7291 }
7292 })
7293 .dedup();
7294
7295 if let Some(hunk) = hunks.next() {
7296 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7297 let row = hunk.start_display_row();
7298 let point = DisplayPoint::new(row, 0);
7299 s.select_display_ranges([point..point]);
7300 });
7301
7302 true
7303 } else {
7304 false
7305 }
7306 }
7307
7308 pub fn go_to_definition(&mut self, _: &GoToDefinition, cx: &mut ViewContext<Self>) {
7309 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
7310 }
7311
7312 pub fn go_to_type_definition(&mut self, _: &GoToTypeDefinition, cx: &mut ViewContext<Self>) {
7313 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx);
7314 }
7315
7316 pub fn go_to_definition_split(&mut self, _: &GoToDefinitionSplit, cx: &mut ViewContext<Self>) {
7317 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx);
7318 }
7319
7320 pub fn go_to_type_definition_split(
7321 &mut self,
7322 _: &GoToTypeDefinitionSplit,
7323 cx: &mut ViewContext<Self>,
7324 ) {
7325 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx);
7326 }
7327
7328 fn go_to_definition_of_kind(
7329 &mut self,
7330 kind: GotoDefinitionKind,
7331 split: bool,
7332 cx: &mut ViewContext<Self>,
7333 ) {
7334 let Some(workspace) = self.workspace() else {
7335 return;
7336 };
7337 let buffer = self.buffer.read(cx);
7338 let head = self.selections.newest::<usize>(cx).head();
7339 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7340 text_anchor
7341 } else {
7342 return;
7343 };
7344
7345 let project = workspace.read(cx).project().clone();
7346 let definitions = project.update(cx, |project, cx| match kind {
7347 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7348 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7349 });
7350
7351 cx.spawn(|editor, mut cx| async move {
7352 let definitions = definitions.await?;
7353 editor.update(&mut cx, |editor, cx| {
7354 editor.navigate_to_hover_links(
7355 definitions.into_iter().map(HoverLink::Text).collect(),
7356 split,
7357 cx,
7358 );
7359 })?;
7360 Ok::<(), anyhow::Error>(())
7361 })
7362 .detach_and_log_err(cx);
7363 }
7364
7365 pub fn navigate_to_hover_links(
7366 &mut self,
7367 mut definitions: Vec<HoverLink>,
7368 split: bool,
7369 cx: &mut ViewContext<Editor>,
7370 ) {
7371 // If there is one definition, just open it directly
7372 if definitions.len() == 1 {
7373 let definition = definitions.pop().unwrap();
7374 let target_task = match definition {
7375 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7376 HoverLink::InlayHint(lsp_location, server_id) => {
7377 self.compute_target_location(lsp_location, server_id, cx)
7378 }
7379 HoverLink::Url(url) => {
7380 cx.open_url(&url);
7381 Task::ready(Ok(None))
7382 }
7383 };
7384 cx.spawn(|editor, mut cx| async move {
7385 let target = target_task.await.context("target resolution task")?;
7386 if let Some(target) = target {
7387 editor.update(&mut cx, |editor, cx| {
7388 let Some(workspace) = editor.workspace() else {
7389 return;
7390 };
7391 let pane = workspace.read(cx).active_pane().clone();
7392
7393 let range = target.range.to_offset(target.buffer.read(cx));
7394 let range = editor.range_for_match(&range);
7395 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7396 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
7397 s.select_ranges([range]);
7398 });
7399 } else {
7400 cx.window_context().defer(move |cx| {
7401 let target_editor: View<Self> =
7402 workspace.update(cx, |workspace, cx| {
7403 if split {
7404 workspace.split_project_item(target.buffer.clone(), cx)
7405 } else {
7406 workspace.open_project_item(target.buffer.clone(), cx)
7407 }
7408 });
7409 target_editor.update(cx, |target_editor, cx| {
7410 // When selecting a definition in a different buffer, disable the nav history
7411 // to avoid creating a history entry at the previous cursor location.
7412 pane.update(cx, |pane, _| pane.disable_history());
7413 target_editor.change_selections(
7414 Some(Autoscroll::fit()),
7415 cx,
7416 |s| {
7417 s.select_ranges([range]);
7418 },
7419 );
7420 pane.update(cx, |pane, _| pane.enable_history());
7421 });
7422 });
7423 }
7424 })
7425 } else {
7426 Ok(())
7427 }
7428 })
7429 .detach_and_log_err(cx);
7430 } else if !definitions.is_empty() {
7431 let replica_id = self.replica_id(cx);
7432 cx.spawn(|editor, mut cx| async move {
7433 let (title, location_tasks, workspace) = editor
7434 .update(&mut cx, |editor, cx| {
7435 let title = definitions
7436 .iter()
7437 .find_map(|definition| match definition {
7438 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7439 let buffer = origin.buffer.read(cx);
7440 format!(
7441 "Definitions for {}",
7442 buffer
7443 .text_for_range(origin.range.clone())
7444 .collect::<String>()
7445 )
7446 }),
7447 HoverLink::InlayHint(_, _) => None,
7448 HoverLink::Url(_) => None,
7449 })
7450 .unwrap_or("Definitions".to_string());
7451 let location_tasks = definitions
7452 .into_iter()
7453 .map(|definition| match definition {
7454 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7455 HoverLink::InlayHint(lsp_location, server_id) => {
7456 editor.compute_target_location(lsp_location, server_id, cx)
7457 }
7458 HoverLink::Url(_) => Task::ready(Ok(None)),
7459 })
7460 .collect::<Vec<_>>();
7461 (title, location_tasks, editor.workspace().clone())
7462 })
7463 .context("location tasks preparation")?;
7464
7465 let locations = futures::future::join_all(location_tasks)
7466 .await
7467 .into_iter()
7468 .filter_map(|location| location.transpose())
7469 .collect::<Result<_>>()
7470 .context("location tasks")?;
7471
7472 let Some(workspace) = workspace else {
7473 return Ok(());
7474 };
7475 workspace
7476 .update(&mut cx, |workspace, cx| {
7477 Self::open_locations_in_multibuffer(
7478 workspace, locations, replica_id, title, split, cx,
7479 )
7480 })
7481 .ok();
7482
7483 anyhow::Ok(())
7484 })
7485 .detach_and_log_err(cx);
7486 }
7487 }
7488
7489 fn compute_target_location(
7490 &self,
7491 lsp_location: lsp::Location,
7492 server_id: LanguageServerId,
7493 cx: &mut ViewContext<Editor>,
7494 ) -> Task<anyhow::Result<Option<Location>>> {
7495 let Some(project) = self.project.clone() else {
7496 return Task::Ready(Some(Ok(None)));
7497 };
7498
7499 cx.spawn(move |editor, mut cx| async move {
7500 let location_task = editor.update(&mut cx, |editor, cx| {
7501 project.update(cx, |project, cx| {
7502 let language_server_name =
7503 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7504 project
7505 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7506 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7507 });
7508 language_server_name.map(|language_server_name| {
7509 project.open_local_buffer_via_lsp(
7510 lsp_location.uri.clone(),
7511 server_id,
7512 language_server_name,
7513 cx,
7514 )
7515 })
7516 })
7517 })?;
7518 let location = match location_task {
7519 Some(task) => Some({
7520 let target_buffer_handle = task.await.context("open local buffer")?;
7521 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7522 let target_start = target_buffer
7523 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7524 let target_end = target_buffer
7525 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7526 target_buffer.anchor_after(target_start)
7527 ..target_buffer.anchor_before(target_end)
7528 })?;
7529 Location {
7530 buffer: target_buffer_handle,
7531 range,
7532 }
7533 }),
7534 None => None,
7535 };
7536 Ok(location)
7537 })
7538 }
7539
7540 pub fn find_all_references(
7541 &mut self,
7542 _: &FindAllReferences,
7543 cx: &mut ViewContext<Self>,
7544 ) -> Option<Task<Result<()>>> {
7545 let buffer = self.buffer.read(cx);
7546 let head = self.selections.newest::<usize>(cx).head();
7547 let (buffer, head) = buffer.text_anchor_for_position(head, cx)?;
7548 let replica_id = self.replica_id(cx);
7549
7550 let workspace = self.workspace()?;
7551 let project = workspace.read(cx).project().clone();
7552 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
7553 Some(cx.spawn(|_, mut cx| async move {
7554 let locations = references.await?;
7555 if locations.is_empty() {
7556 return Ok(());
7557 }
7558
7559 workspace.update(&mut cx, |workspace, cx| {
7560 let title = locations
7561 .first()
7562 .as_ref()
7563 .map(|location| {
7564 let buffer = location.buffer.read(cx);
7565 format!(
7566 "References to `{}`",
7567 buffer
7568 .text_for_range(location.range.clone())
7569 .collect::<String>()
7570 )
7571 })
7572 .unwrap();
7573 Self::open_locations_in_multibuffer(
7574 workspace, locations, replica_id, title, false, cx,
7575 );
7576 })?;
7577
7578 Ok(())
7579 }))
7580 }
7581
7582 /// Opens a multibuffer with the given project locations in it
7583 pub fn open_locations_in_multibuffer(
7584 workspace: &mut Workspace,
7585 mut locations: Vec<Location>,
7586 replica_id: ReplicaId,
7587 title: String,
7588 split: bool,
7589 cx: &mut ViewContext<Workspace>,
7590 ) {
7591 // If there are multiple definitions, open them in a multibuffer
7592 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
7593 let mut locations = locations.into_iter().peekable();
7594 let mut ranges_to_highlight = Vec::new();
7595 let capability = workspace.project().read(cx).capability();
7596
7597 let excerpt_buffer = cx.new_model(|cx| {
7598 let mut multibuffer = MultiBuffer::new(replica_id, capability);
7599 while let Some(location) = locations.next() {
7600 let buffer = location.buffer.read(cx);
7601 let mut ranges_for_buffer = Vec::new();
7602 let range = location.range.to_offset(buffer);
7603 ranges_for_buffer.push(range.clone());
7604
7605 while let Some(next_location) = locations.peek() {
7606 if next_location.buffer == location.buffer {
7607 ranges_for_buffer.push(next_location.range.to_offset(buffer));
7608 locations.next();
7609 } else {
7610 break;
7611 }
7612 }
7613
7614 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
7615 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
7616 location.buffer.clone(),
7617 ranges_for_buffer,
7618 1,
7619 cx,
7620 ))
7621 }
7622
7623 multibuffer.with_title(title)
7624 });
7625
7626 let editor = cx.new_view(|cx| {
7627 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
7628 });
7629 editor.update(cx, |editor, cx| {
7630 editor.highlight_background::<Self>(
7631 ranges_to_highlight,
7632 |theme| theme.editor_highlighted_line_background,
7633 cx,
7634 );
7635 });
7636 if split {
7637 workspace.split_item(SplitDirection::Right, Box::new(editor), cx);
7638 } else {
7639 workspace.add_item(Box::new(editor), cx);
7640 }
7641 }
7642
7643 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7644 use language::ToOffset as _;
7645
7646 let project = self.project.clone()?;
7647 let selection = self.selections.newest_anchor().clone();
7648 let (cursor_buffer, cursor_buffer_position) = self
7649 .buffer
7650 .read(cx)
7651 .text_anchor_for_position(selection.head(), cx)?;
7652 let (tail_buffer, _) = self
7653 .buffer
7654 .read(cx)
7655 .text_anchor_for_position(selection.tail(), cx)?;
7656 if tail_buffer != cursor_buffer {
7657 return None;
7658 }
7659
7660 let snapshot = cursor_buffer.read(cx).snapshot();
7661 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
7662 let prepare_rename = project.update(cx, |project, cx| {
7663 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
7664 });
7665 drop(snapshot);
7666
7667 Some(cx.spawn(|this, mut cx| async move {
7668 let rename_range = if let Some(range) = prepare_rename.await? {
7669 Some(range)
7670 } else {
7671 this.update(&mut cx, |this, cx| {
7672 let buffer = this.buffer.read(cx).snapshot(cx);
7673 let mut buffer_highlights = this
7674 .document_highlights_for_position(selection.head(), &buffer)
7675 .filter(|highlight| {
7676 highlight.start.excerpt_id == selection.head().excerpt_id
7677 && highlight.end.excerpt_id == selection.head().excerpt_id
7678 });
7679 buffer_highlights
7680 .next()
7681 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
7682 })?
7683 };
7684 if let Some(rename_range) = rename_range {
7685 this.update(&mut cx, |this, cx| {
7686 let snapshot = cursor_buffer.read(cx).snapshot();
7687 let rename_buffer_range = rename_range.to_offset(&snapshot);
7688 let cursor_offset_in_rename_range =
7689 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
7690
7691 this.take_rename(false, cx);
7692 let buffer = this.buffer.read(cx).read(cx);
7693 let cursor_offset = selection.head().to_offset(&buffer);
7694 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
7695 let rename_end = rename_start + rename_buffer_range.len();
7696 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
7697 let mut old_highlight_id = None;
7698 let old_name: Arc<str> = buffer
7699 .chunks(rename_start..rename_end, true)
7700 .map(|chunk| {
7701 if old_highlight_id.is_none() {
7702 old_highlight_id = chunk.syntax_highlight_id;
7703 }
7704 chunk.text
7705 })
7706 .collect::<String>()
7707 .into();
7708
7709 drop(buffer);
7710
7711 // Position the selection in the rename editor so that it matches the current selection.
7712 this.show_local_selections = false;
7713 let rename_editor = cx.new_view(|cx| {
7714 let mut editor = Editor::single_line(cx);
7715 editor.buffer.update(cx, |buffer, cx| {
7716 buffer.edit([(0..0, old_name.clone())], None, cx)
7717 });
7718 editor.select_all(&SelectAll, cx);
7719 editor
7720 });
7721
7722 let ranges = this
7723 .clear_background_highlights::<DocumentHighlightWrite>(cx)
7724 .into_iter()
7725 .flat_map(|(_, ranges)| ranges.into_iter())
7726 .chain(
7727 this.clear_background_highlights::<DocumentHighlightRead>(cx)
7728 .into_iter()
7729 .flat_map(|(_, ranges)| ranges.into_iter()),
7730 )
7731 .collect();
7732
7733 this.highlight_text::<Rename>(
7734 ranges,
7735 HighlightStyle {
7736 fade_out: Some(0.6),
7737 ..Default::default()
7738 },
7739 cx,
7740 );
7741 let rename_focus_handle = rename_editor.focus_handle(cx);
7742 cx.focus(&rename_focus_handle);
7743 let block_id = this.insert_blocks(
7744 [BlockProperties {
7745 style: BlockStyle::Flex,
7746 position: range.start.clone(),
7747 height: 1,
7748 render: Arc::new({
7749 let rename_editor = rename_editor.clone();
7750 move |cx: &mut BlockContext| {
7751 let mut text_style = cx.editor_style.text.clone();
7752 if let Some(highlight_style) = old_highlight_id
7753 .and_then(|h| h.style(&cx.editor_style.syntax))
7754 {
7755 text_style = text_style.highlight(highlight_style);
7756 }
7757 div()
7758 .pl(cx.anchor_x)
7759 .child(EditorElement::new(
7760 &rename_editor,
7761 EditorStyle {
7762 background: cx.theme().system().transparent,
7763 local_player: cx.editor_style.local_player,
7764 text: text_style,
7765 scrollbar_width: cx.editor_style.scrollbar_width,
7766 syntax: cx.editor_style.syntax.clone(),
7767 status: cx.editor_style.status.clone(),
7768 inlays_style: HighlightStyle {
7769 color: Some(cx.theme().status().hint),
7770 font_weight: Some(FontWeight::BOLD),
7771 ..HighlightStyle::default()
7772 },
7773 suggestions_style: HighlightStyle {
7774 color: Some(cx.theme().status().predictive),
7775 ..HighlightStyle::default()
7776 },
7777 },
7778 ))
7779 .into_any_element()
7780 }
7781 }),
7782 disposition: BlockDisposition::Below,
7783 }],
7784 Some(Autoscroll::fit()),
7785 cx,
7786 )[0];
7787 this.pending_rename = Some(RenameState {
7788 range,
7789 old_name,
7790 editor: rename_editor,
7791 block_id,
7792 });
7793 })?;
7794 }
7795
7796 Ok(())
7797 }))
7798 }
7799
7800 pub fn confirm_rename(
7801 &mut self,
7802 _: &ConfirmRename,
7803 cx: &mut ViewContext<Self>,
7804 ) -> Option<Task<Result<()>>> {
7805 let rename = self.take_rename(false, cx)?;
7806 let workspace = self.workspace()?;
7807 let (start_buffer, start) = self
7808 .buffer
7809 .read(cx)
7810 .text_anchor_for_position(rename.range.start.clone(), cx)?;
7811 let (end_buffer, end) = self
7812 .buffer
7813 .read(cx)
7814 .text_anchor_for_position(rename.range.end.clone(), cx)?;
7815 if start_buffer != end_buffer {
7816 return None;
7817 }
7818
7819 let buffer = start_buffer;
7820 let range = start..end;
7821 let old_name = rename.old_name;
7822 let new_name = rename.editor.read(cx).text(cx);
7823
7824 let rename = workspace
7825 .read(cx)
7826 .project()
7827 .clone()
7828 .update(cx, |project, cx| {
7829 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
7830 });
7831 let workspace = workspace.downgrade();
7832
7833 Some(cx.spawn(|editor, mut cx| async move {
7834 let project_transaction = rename.await?;
7835 Self::open_project_transaction(
7836 &editor,
7837 workspace,
7838 project_transaction,
7839 format!("Rename: {} → {}", old_name, new_name),
7840 cx.clone(),
7841 )
7842 .await?;
7843
7844 editor.update(&mut cx, |editor, cx| {
7845 editor.refresh_document_highlights(cx);
7846 })?;
7847 Ok(())
7848 }))
7849 }
7850
7851 fn take_rename(
7852 &mut self,
7853 moving_cursor: bool,
7854 cx: &mut ViewContext<Self>,
7855 ) -> Option<RenameState> {
7856 let rename = self.pending_rename.take()?;
7857 if rename.editor.focus_handle(cx).is_focused(cx) {
7858 cx.focus(&self.focus_handle);
7859 }
7860
7861 self.remove_blocks(
7862 [rename.block_id].into_iter().collect(),
7863 Some(Autoscroll::fit()),
7864 cx,
7865 );
7866 self.clear_highlights::<Rename>(cx);
7867 self.show_local_selections = true;
7868
7869 if moving_cursor {
7870 let rename_editor = rename.editor.read(cx);
7871 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
7872
7873 // Update the selection to match the position of the selection inside
7874 // the rename editor.
7875 let snapshot = self.buffer.read(cx).read(cx);
7876 let rename_range = rename.range.to_offset(&snapshot);
7877 let cursor_in_editor = snapshot
7878 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
7879 .min(rename_range.end);
7880 drop(snapshot);
7881
7882 self.change_selections(None, cx, |s| {
7883 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
7884 });
7885 } else {
7886 self.refresh_document_highlights(cx);
7887 }
7888
7889 Some(rename)
7890 }
7891
7892 pub fn pending_rename(&self) -> Option<&RenameState> {
7893 self.pending_rename.as_ref()
7894 }
7895
7896 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
7897 let project = match &self.project {
7898 Some(project) => project.clone(),
7899 None => return None,
7900 };
7901
7902 Some(self.perform_format(project, FormatTrigger::Manual, cx))
7903 }
7904
7905 fn perform_format(
7906 &mut self,
7907 project: Model<Project>,
7908 trigger: FormatTrigger,
7909 cx: &mut ViewContext<Self>,
7910 ) -> Task<Result<()>> {
7911 let buffer = self.buffer().clone();
7912 let buffers = buffer.read(cx).all_buffers();
7913
7914 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
7915 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
7916
7917 cx.spawn(|_, mut cx| async move {
7918 let transaction = futures::select_biased! {
7919 _ = timeout => {
7920 log::warn!("timed out waiting for formatting");
7921 None
7922 }
7923 transaction = format.log_err().fuse() => transaction,
7924 };
7925
7926 buffer
7927 .update(&mut cx, |buffer, cx| {
7928 if let Some(transaction) = transaction {
7929 if !buffer.is_singleton() {
7930 buffer.push_transaction(&transaction.0, cx);
7931 }
7932 }
7933
7934 cx.notify();
7935 })
7936 .ok();
7937
7938 Ok(())
7939 })
7940 }
7941
7942 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
7943 if let Some(project) = self.project.clone() {
7944 self.buffer.update(cx, |multi_buffer, cx| {
7945 project.update(cx, |project, cx| {
7946 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
7947 });
7948 })
7949 }
7950 }
7951
7952 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
7953 cx.show_character_palette();
7954 }
7955
7956 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
7957 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
7958 let buffer = self.buffer.read(cx).snapshot(cx);
7959 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
7960 let is_valid = buffer
7961 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
7962 .any(|entry| {
7963 entry.diagnostic.is_primary
7964 && !entry.range.is_empty()
7965 && entry.range.start == primary_range_start
7966 && entry.diagnostic.message == active_diagnostics.primary_message
7967 });
7968
7969 if is_valid != active_diagnostics.is_valid {
7970 active_diagnostics.is_valid = is_valid;
7971 let mut new_styles = HashMap::default();
7972 for (block_id, diagnostic) in &active_diagnostics.blocks {
7973 new_styles.insert(
7974 *block_id,
7975 diagnostic_block_renderer(diagnostic.clone(), is_valid),
7976 );
7977 }
7978 self.display_map
7979 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
7980 }
7981 }
7982 }
7983
7984 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
7985 self.dismiss_diagnostics(cx);
7986 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
7987 let buffer = self.buffer.read(cx).snapshot(cx);
7988
7989 let mut primary_range = None;
7990 let mut primary_message = None;
7991 let mut group_end = Point::zero();
7992 let diagnostic_group = buffer
7993 .diagnostic_group::<Point>(group_id)
7994 .map(|entry| {
7995 if entry.range.end > group_end {
7996 group_end = entry.range.end;
7997 }
7998 if entry.diagnostic.is_primary {
7999 primary_range = Some(entry.range.clone());
8000 primary_message = Some(entry.diagnostic.message.clone());
8001 }
8002 entry
8003 })
8004 .collect::<Vec<_>>();
8005 let primary_range = primary_range?;
8006 let primary_message = primary_message?;
8007 let primary_range =
8008 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8009
8010 let blocks = display_map
8011 .insert_blocks(
8012 diagnostic_group.iter().map(|entry| {
8013 let diagnostic = entry.diagnostic.clone();
8014 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8015 BlockProperties {
8016 style: BlockStyle::Fixed,
8017 position: buffer.anchor_after(entry.range.start),
8018 height: message_height,
8019 render: diagnostic_block_renderer(diagnostic, true),
8020 disposition: BlockDisposition::Below,
8021 }
8022 }),
8023 cx,
8024 )
8025 .into_iter()
8026 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8027 .collect();
8028
8029 Some(ActiveDiagnosticGroup {
8030 primary_range,
8031 primary_message,
8032 blocks,
8033 is_valid: true,
8034 })
8035 });
8036 self.active_diagnostics.is_some()
8037 }
8038
8039 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8040 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8041 self.display_map.update(cx, |display_map, cx| {
8042 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8043 });
8044 cx.notify();
8045 }
8046 }
8047
8048 pub fn set_selections_from_remote(
8049 &mut self,
8050 selections: Vec<Selection<Anchor>>,
8051 pending_selection: Option<Selection<Anchor>>,
8052 cx: &mut ViewContext<Self>,
8053 ) {
8054 let old_cursor_position = self.selections.newest_anchor().head();
8055 self.selections.change_with(cx, |s| {
8056 s.select_anchors(selections);
8057 if let Some(pending_selection) = pending_selection {
8058 s.set_pending(pending_selection, SelectMode::Character);
8059 } else {
8060 s.clear_pending();
8061 }
8062 });
8063 self.selections_did_change(false, &old_cursor_position, cx);
8064 }
8065
8066 fn push_to_selection_history(&mut self) {
8067 self.selection_history.push(SelectionHistoryEntry {
8068 selections: self.selections.disjoint_anchors(),
8069 select_next_state: self.select_next_state.clone(),
8070 select_prev_state: self.select_prev_state.clone(),
8071 add_selections_state: self.add_selections_state.clone(),
8072 });
8073 }
8074
8075 pub fn transact(
8076 &mut self,
8077 cx: &mut ViewContext<Self>,
8078 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8079 ) -> Option<TransactionId> {
8080 self.start_transaction_at(Instant::now(), cx);
8081 update(self, cx);
8082 self.end_transaction_at(Instant::now(), cx)
8083 }
8084
8085 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8086 self.end_selection(cx);
8087 if let Some(tx_id) = self
8088 .buffer
8089 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8090 {
8091 self.selection_history
8092 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8093 }
8094 }
8095
8096 fn end_transaction_at(
8097 &mut self,
8098 now: Instant,
8099 cx: &mut ViewContext<Self>,
8100 ) -> Option<TransactionId> {
8101 if let Some(tx_id) = self
8102 .buffer
8103 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8104 {
8105 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8106 *end_selections = Some(self.selections.disjoint_anchors());
8107 } else {
8108 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8109 }
8110
8111 cx.emit(EditorEvent::Edited);
8112 Some(tx_id)
8113 } else {
8114 None
8115 }
8116 }
8117
8118 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8119 let mut fold_ranges = Vec::new();
8120
8121 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8122
8123 let selections = self.selections.all_adjusted(cx);
8124 for selection in selections {
8125 let range = selection.range().sorted();
8126 let buffer_start_row = range.start.row;
8127
8128 for row in (0..=range.end.row).rev() {
8129 let fold_range = display_map.foldable_range(row);
8130
8131 if let Some(fold_range) = fold_range {
8132 if fold_range.end.row >= buffer_start_row {
8133 fold_ranges.push(fold_range);
8134 if row <= range.start.row {
8135 break;
8136 }
8137 }
8138 }
8139 }
8140 }
8141
8142 self.fold_ranges(fold_ranges, true, cx);
8143 }
8144
8145 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8146 let buffer_row = fold_at.buffer_row;
8147 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8148
8149 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8150 let autoscroll = self
8151 .selections
8152 .all::<Point>(cx)
8153 .iter()
8154 .any(|selection| fold_range.overlaps(&selection.range()));
8155
8156 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8157 }
8158 }
8159
8160 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8161 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8162 let buffer = &display_map.buffer_snapshot;
8163 let selections = self.selections.all::<Point>(cx);
8164 let ranges = selections
8165 .iter()
8166 .map(|s| {
8167 let range = s.display_range(&display_map).sorted();
8168 let mut start = range.start.to_point(&display_map);
8169 let mut end = range.end.to_point(&display_map);
8170 start.column = 0;
8171 end.column = buffer.line_len(end.row);
8172 start..end
8173 })
8174 .collect::<Vec<_>>();
8175
8176 self.unfold_ranges(ranges, true, true, cx);
8177 }
8178
8179 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8180 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8181
8182 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8183 ..Point::new(
8184 unfold_at.buffer_row,
8185 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8186 );
8187
8188 let autoscroll = self
8189 .selections
8190 .all::<Point>(cx)
8191 .iter()
8192 .any(|selection| selection.range().overlaps(&intersection_range));
8193
8194 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8195 }
8196
8197 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8198 let selections = self.selections.all::<Point>(cx);
8199 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8200 let line_mode = self.selections.line_mode;
8201 let ranges = selections.into_iter().map(|s| {
8202 if line_mode {
8203 let start = Point::new(s.start.row, 0);
8204 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8205 start..end
8206 } else {
8207 s.start..s.end
8208 }
8209 });
8210 self.fold_ranges(ranges, true, cx);
8211 }
8212
8213 pub fn fold_ranges<T: ToOffset + Clone>(
8214 &mut self,
8215 ranges: impl IntoIterator<Item = Range<T>>,
8216 auto_scroll: bool,
8217 cx: &mut ViewContext<Self>,
8218 ) {
8219 let mut ranges = ranges.into_iter().peekable();
8220 if ranges.peek().is_some() {
8221 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8222
8223 if auto_scroll {
8224 self.request_autoscroll(Autoscroll::fit(), cx);
8225 }
8226
8227 cx.notify();
8228 }
8229 }
8230
8231 pub fn unfold_ranges<T: ToOffset + Clone>(
8232 &mut self,
8233 ranges: impl IntoIterator<Item = Range<T>>,
8234 inclusive: bool,
8235 auto_scroll: bool,
8236 cx: &mut ViewContext<Self>,
8237 ) {
8238 let mut ranges = ranges.into_iter().peekable();
8239 if ranges.peek().is_some() {
8240 self.display_map
8241 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8242 if auto_scroll {
8243 self.request_autoscroll(Autoscroll::fit(), cx);
8244 }
8245
8246 cx.notify();
8247 }
8248 }
8249
8250 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8251 if hovered != self.gutter_hovered {
8252 self.gutter_hovered = hovered;
8253 cx.notify();
8254 }
8255 }
8256
8257 pub fn insert_blocks(
8258 &mut self,
8259 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8260 autoscroll: Option<Autoscroll>,
8261 cx: &mut ViewContext<Self>,
8262 ) -> Vec<BlockId> {
8263 let blocks = self
8264 .display_map
8265 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8266 if let Some(autoscroll) = autoscroll {
8267 self.request_autoscroll(autoscroll, cx);
8268 }
8269 blocks
8270 }
8271
8272 pub fn replace_blocks(
8273 &mut self,
8274 blocks: HashMap<BlockId, RenderBlock>,
8275 autoscroll: Option<Autoscroll>,
8276 cx: &mut ViewContext<Self>,
8277 ) {
8278 self.display_map
8279 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8280 if let Some(autoscroll) = autoscroll {
8281 self.request_autoscroll(autoscroll, cx);
8282 }
8283 }
8284
8285 pub fn remove_blocks(
8286 &mut self,
8287 block_ids: HashSet<BlockId>,
8288 autoscroll: Option<Autoscroll>,
8289 cx: &mut ViewContext<Self>,
8290 ) {
8291 self.display_map.update(cx, |display_map, cx| {
8292 display_map.remove_blocks(block_ids, cx)
8293 });
8294 if let Some(autoscroll) = autoscroll {
8295 self.request_autoscroll(autoscroll, cx);
8296 }
8297 }
8298
8299 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8300 self.display_map
8301 .update(cx, |map, cx| map.snapshot(cx))
8302 .longest_row()
8303 }
8304
8305 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8306 self.display_map
8307 .update(cx, |map, cx| map.snapshot(cx))
8308 .max_point()
8309 }
8310
8311 pub fn text(&self, cx: &AppContext) -> String {
8312 self.buffer.read(cx).read(cx).text()
8313 }
8314
8315 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8316 let text = self.text(cx);
8317 let text = text.trim();
8318
8319 if text.is_empty() {
8320 return None;
8321 }
8322
8323 Some(text.to_string())
8324 }
8325
8326 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8327 self.transact(cx, |this, cx| {
8328 this.buffer
8329 .read(cx)
8330 .as_singleton()
8331 .expect("you can only call set_text on editors for singleton buffers")
8332 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8333 });
8334 }
8335
8336 pub fn display_text(&self, cx: &mut AppContext) -> String {
8337 self.display_map
8338 .update(cx, |map, cx| map.snapshot(cx))
8339 .text()
8340 }
8341
8342 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8343 let mut wrap_guides = smallvec::smallvec![];
8344
8345 if self.show_wrap_guides == Some(false) {
8346 return wrap_guides;
8347 }
8348
8349 let settings = self.buffer.read(cx).settings_at(0, cx);
8350 if settings.show_wrap_guides {
8351 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8352 wrap_guides.push((soft_wrap as usize, true));
8353 }
8354 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8355 }
8356
8357 wrap_guides
8358 }
8359
8360 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8361 let settings = self.buffer.read(cx).settings_at(0, cx);
8362 let mode = self
8363 .soft_wrap_mode_override
8364 .unwrap_or_else(|| settings.soft_wrap);
8365 match mode {
8366 language_settings::SoftWrap::None => SoftWrap::None,
8367 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8368 language_settings::SoftWrap::PreferredLineLength => {
8369 SoftWrap::Column(settings.preferred_line_length)
8370 }
8371 }
8372 }
8373
8374 pub fn set_soft_wrap_mode(
8375 &mut self,
8376 mode: language_settings::SoftWrap,
8377 cx: &mut ViewContext<Self>,
8378 ) {
8379 self.soft_wrap_mode_override = Some(mode);
8380 cx.notify();
8381 }
8382
8383 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8384 let rem_size = cx.rem_size();
8385 self.display_map.update(cx, |map, cx| {
8386 map.set_font(
8387 style.text.font(),
8388 style.text.font_size.to_pixels(rem_size),
8389 cx,
8390 )
8391 });
8392 self.style = Some(style);
8393 }
8394
8395 #[cfg(any(test, feature = "test-support"))]
8396 pub fn style(&self) -> Option<&EditorStyle> {
8397 self.style.as_ref()
8398 }
8399
8400 // Called by the element. This method is not designed to be called outside of the editor
8401 // element's layout code because it does not notify when rewrapping is computed synchronously.
8402 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8403 self.display_map
8404 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8405 }
8406
8407 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
8408 if self.soft_wrap_mode_override.is_some() {
8409 self.soft_wrap_mode_override.take();
8410 } else {
8411 let soft_wrap = match self.soft_wrap_mode(cx) {
8412 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
8413 SoftWrap::EditorWidth | SoftWrap::Column(_) => language_settings::SoftWrap::None,
8414 };
8415 self.soft_wrap_mode_override = Some(soft_wrap);
8416 }
8417 cx.notify();
8418 }
8419
8420 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8421 self.show_gutter = show_gutter;
8422 cx.notify();
8423 }
8424
8425 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
8426 self.show_wrap_guides = Some(show_gutter);
8427 cx.notify();
8428 }
8429
8430 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
8431 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8432 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8433 cx.reveal_path(&file.abs_path(cx));
8434 }
8435 }
8436 }
8437
8438 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
8439 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8440 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8441 if let Some(path) = file.abs_path(cx).to_str() {
8442 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8443 }
8444 }
8445 }
8446 }
8447
8448 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
8449 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
8450 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
8451 if let Some(path) = file.path().to_str() {
8452 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
8453 }
8454 }
8455 }
8456 }
8457
8458 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
8459 use git::permalink::{build_permalink, BuildPermalinkParams};
8460
8461 let project = self.project.clone().ok_or_else(|| anyhow!("no project"))?;
8462 let project = project.read(cx);
8463
8464 let worktree = project
8465 .visible_worktrees(cx)
8466 .next()
8467 .ok_or_else(|| anyhow!("no worktree"))?;
8468
8469 let mut cwd = worktree.read(cx).abs_path().to_path_buf();
8470 cwd.push(".git");
8471
8472 const REMOTE_NAME: &'static str = "origin";
8473 let repo = project
8474 .fs()
8475 .open_repo(&cwd)
8476 .ok_or_else(|| anyhow!("no Git repo"))?;
8477 let origin_url = repo
8478 .lock()
8479 .remote_url(REMOTE_NAME)
8480 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
8481 let sha = repo
8482 .lock()
8483 .head_sha()
8484 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
8485
8486 let path = maybe!({
8487 let buffer = self.buffer().read(cx).as_singleton()?;
8488 let file = buffer.read(cx).file().and_then(|f| f.as_local())?;
8489 file.path().to_str().map(|path| path.to_string())
8490 })
8491 .ok_or_else(|| anyhow!("failed to determine file path"))?;
8492
8493 let selections = self.selections.all::<Point>(cx);
8494 let selection = selections.iter().peekable().next();
8495
8496 build_permalink(BuildPermalinkParams {
8497 remote_url: &origin_url,
8498 sha: &sha,
8499 path: &path,
8500 selection: selection.map(|selection| selection.range()),
8501 })
8502 }
8503
8504 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
8505 let permalink = self.get_permalink_to_line(cx);
8506
8507 match permalink {
8508 Ok(permalink) => {
8509 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
8510 }
8511 Err(err) => {
8512 let message = format!("Failed to copy permalink: {err}");
8513
8514 Err::<(), anyhow::Error>(err).log_err();
8515
8516 if let Some(workspace) = self.workspace() {
8517 workspace.update(cx, |workspace, cx| {
8518 workspace.show_toast(Toast::new(0x156a5f9ee, message), cx)
8519 })
8520 }
8521 }
8522 }
8523 }
8524
8525 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
8526 let permalink = self.get_permalink_to_line(cx);
8527
8528 match permalink {
8529 Ok(permalink) => {
8530 cx.open_url(&permalink.to_string());
8531 }
8532 Err(err) => {
8533 let message = format!("Failed to open permalink: {err}");
8534
8535 Err::<(), anyhow::Error>(err).log_err();
8536
8537 if let Some(workspace) = self.workspace() {
8538 workspace.update(cx, |workspace, cx| {
8539 workspace.show_toast(Toast::new(0x45a8978, message), cx)
8540 })
8541 }
8542 }
8543 }
8544 }
8545
8546 pub fn highlight_rows(&mut self, rows: Option<Range<u32>>) {
8547 self.highlighted_rows = rows;
8548 }
8549
8550 pub fn highlighted_rows(&self) -> Option<Range<u32>> {
8551 self.highlighted_rows.clone()
8552 }
8553
8554 pub fn highlight_background<T: 'static>(
8555 &mut self,
8556 ranges: Vec<Range<Anchor>>,
8557 color_fetcher: fn(&ThemeColors) -> Hsla,
8558 cx: &mut ViewContext<Self>,
8559 ) {
8560 let snapshot = self.snapshot(cx);
8561 // this is to try and catch a panic sooner
8562 for range in &ranges {
8563 snapshot
8564 .buffer_snapshot
8565 .summary_for_anchor::<usize>(&range.start);
8566 snapshot
8567 .buffer_snapshot
8568 .summary_for_anchor::<usize>(&range.end);
8569 }
8570
8571 self.background_highlights
8572 .insert(TypeId::of::<T>(), (color_fetcher, ranges));
8573 cx.notify();
8574 }
8575
8576 pub(crate) fn highlight_inlay_background<T: 'static>(
8577 &mut self,
8578 ranges: Vec<InlayHighlight>,
8579 color_fetcher: fn(&ThemeColors) -> Hsla,
8580 cx: &mut ViewContext<Self>,
8581 ) {
8582 // TODO: no actual highlights happen for inlays currently, find a way to do that
8583 self.inlay_background_highlights
8584 .insert(Some(TypeId::of::<T>()), (color_fetcher, ranges));
8585 cx.notify();
8586 }
8587
8588 pub fn clear_background_highlights<T: 'static>(
8589 &mut self,
8590 cx: &mut ViewContext<Self>,
8591 ) -> Option<BackgroundHighlight> {
8592 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>());
8593 let inlay_highlights = self
8594 .inlay_background_highlights
8595 .remove(&Some(TypeId::of::<T>()));
8596 if text_highlights.is_some() || inlay_highlights.is_some() {
8597 cx.notify();
8598 }
8599 text_highlights
8600 }
8601
8602 #[cfg(feature = "test-support")]
8603 pub fn all_text_background_highlights(
8604 &mut self,
8605 cx: &mut ViewContext<Self>,
8606 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8607 let snapshot = self.snapshot(cx);
8608 let buffer = &snapshot.buffer_snapshot;
8609 let start = buffer.anchor_before(0);
8610 let end = buffer.anchor_after(buffer.len());
8611 let theme = cx.theme().colors();
8612 self.background_highlights_in_range(start..end, &snapshot, theme)
8613 }
8614
8615 fn document_highlights_for_position<'a>(
8616 &'a self,
8617 position: Anchor,
8618 buffer: &'a MultiBufferSnapshot,
8619 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
8620 let read_highlights = self
8621 .background_highlights
8622 .get(&TypeId::of::<DocumentHighlightRead>())
8623 .map(|h| &h.1);
8624 let write_highlights = self
8625 .background_highlights
8626 .get(&TypeId::of::<DocumentHighlightWrite>())
8627 .map(|h| &h.1);
8628 let left_position = position.bias_left(buffer);
8629 let right_position = position.bias_right(buffer);
8630 read_highlights
8631 .into_iter()
8632 .chain(write_highlights)
8633 .flat_map(move |ranges| {
8634 let start_ix = match ranges.binary_search_by(|probe| {
8635 let cmp = probe.end.cmp(&left_position, buffer);
8636 if cmp.is_ge() {
8637 Ordering::Greater
8638 } else {
8639 Ordering::Less
8640 }
8641 }) {
8642 Ok(i) | Err(i) => i,
8643 };
8644
8645 let right_position = right_position.clone();
8646 ranges[start_ix..]
8647 .iter()
8648 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
8649 })
8650 }
8651
8652 pub fn has_background_highlights<T: 'static>(&self) -> bool {
8653 self.background_highlights
8654 .get(&TypeId::of::<T>())
8655 .map_or(false, |(_, highlights)| !highlights.is_empty())
8656 }
8657
8658 pub fn background_highlights_in_range(
8659 &self,
8660 search_range: Range<Anchor>,
8661 display_snapshot: &DisplaySnapshot,
8662 theme: &ThemeColors,
8663 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
8664 let mut results = Vec::new();
8665 for (color_fetcher, ranges) in self.background_highlights.values() {
8666 let color = color_fetcher(theme);
8667 let start_ix = match ranges.binary_search_by(|probe| {
8668 let cmp = probe
8669 .end
8670 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8671 if cmp.is_gt() {
8672 Ordering::Greater
8673 } else {
8674 Ordering::Less
8675 }
8676 }) {
8677 Ok(i) | Err(i) => i,
8678 };
8679 for range in &ranges[start_ix..] {
8680 if range
8681 .start
8682 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8683 .is_ge()
8684 {
8685 break;
8686 }
8687
8688 let start = range.start.to_display_point(&display_snapshot);
8689 let end = range.end.to_display_point(&display_snapshot);
8690 results.push((start..end, color))
8691 }
8692 }
8693 results
8694 }
8695
8696 pub fn background_highlight_row_ranges<T: 'static>(
8697 &self,
8698 search_range: Range<Anchor>,
8699 display_snapshot: &DisplaySnapshot,
8700 count: usize,
8701 ) -> Vec<RangeInclusive<DisplayPoint>> {
8702 let mut results = Vec::new();
8703 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
8704 return vec![];
8705 };
8706
8707 let start_ix = match ranges.binary_search_by(|probe| {
8708 let cmp = probe
8709 .end
8710 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
8711 if cmp.is_gt() {
8712 Ordering::Greater
8713 } else {
8714 Ordering::Less
8715 }
8716 }) {
8717 Ok(i) | Err(i) => i,
8718 };
8719 let mut push_region = |start: Option<Point>, end: Option<Point>| {
8720 if let (Some(start_display), Some(end_display)) = (start, end) {
8721 results.push(
8722 start_display.to_display_point(display_snapshot)
8723 ..=end_display.to_display_point(display_snapshot),
8724 );
8725 }
8726 };
8727 let mut start_row: Option<Point> = None;
8728 let mut end_row: Option<Point> = None;
8729 if ranges.len() > count {
8730 return Vec::new();
8731 }
8732 for range in &ranges[start_ix..] {
8733 if range
8734 .start
8735 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
8736 .is_ge()
8737 {
8738 break;
8739 }
8740 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
8741 if let Some(current_row) = &end_row {
8742 if end.row == current_row.row {
8743 continue;
8744 }
8745 }
8746 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
8747 if start_row.is_none() {
8748 assert_eq!(end_row, None);
8749 start_row = Some(start);
8750 end_row = Some(end);
8751 continue;
8752 }
8753 if let Some(current_end) = end_row.as_mut() {
8754 if start.row > current_end.row + 1 {
8755 push_region(start_row, end_row);
8756 start_row = Some(start);
8757 end_row = Some(end);
8758 } else {
8759 // Merge two hunks.
8760 *current_end = end;
8761 }
8762 } else {
8763 unreachable!();
8764 }
8765 }
8766 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
8767 push_region(start_row, end_row);
8768 results
8769 }
8770
8771 /// Get the text ranges corresponding to the redaction query
8772 pub fn redacted_ranges(
8773 &self,
8774 search_range: Range<Anchor>,
8775 display_snapshot: &DisplaySnapshot,
8776 cx: &mut ViewContext<Self>,
8777 ) -> Vec<Range<DisplayPoint>> {
8778 display_snapshot
8779 .buffer_snapshot
8780 .redacted_ranges(search_range, |file| {
8781 if let Some(file) = file {
8782 file.is_private()
8783 && EditorSettings::get(Some((file.worktree_id(), file.path())), cx)
8784 .redact_private_values
8785 } else {
8786 false
8787 }
8788 })
8789 .map(|range| {
8790 range.start.to_display_point(display_snapshot)
8791 ..range.end.to_display_point(display_snapshot)
8792 })
8793 .collect()
8794 }
8795
8796 pub fn highlight_text<T: 'static>(
8797 &mut self,
8798 ranges: Vec<Range<Anchor>>,
8799 style: HighlightStyle,
8800 cx: &mut ViewContext<Self>,
8801 ) {
8802 self.display_map.update(cx, |map, _| {
8803 map.highlight_text(TypeId::of::<T>(), ranges, style)
8804 });
8805 cx.notify();
8806 }
8807
8808 pub(crate) fn highlight_inlays<T: 'static>(
8809 &mut self,
8810 highlights: Vec<InlayHighlight>,
8811 style: HighlightStyle,
8812 cx: &mut ViewContext<Self>,
8813 ) {
8814 self.display_map.update(cx, |map, _| {
8815 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
8816 });
8817 cx.notify();
8818 }
8819
8820 pub fn text_highlights<'a, T: 'static>(
8821 &'a self,
8822 cx: &'a AppContext,
8823 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
8824 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
8825 }
8826
8827 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
8828 let cleared = self
8829 .display_map
8830 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
8831 if cleared {
8832 cx.notify();
8833 }
8834 }
8835
8836 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
8837 (self.read_only(cx) || self.blink_manager.read(cx).visible())
8838 && self.focus_handle.is_focused(cx)
8839 }
8840
8841 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
8842 cx.notify();
8843 }
8844
8845 fn on_buffer_event(
8846 &mut self,
8847 multibuffer: Model<MultiBuffer>,
8848 event: &multi_buffer::Event,
8849 cx: &mut ViewContext<Self>,
8850 ) {
8851 match event {
8852 multi_buffer::Event::Edited {
8853 singleton_buffer_edited,
8854 } => {
8855 self.refresh_active_diagnostics(cx);
8856 self.refresh_code_actions(cx);
8857 if self.has_active_copilot_suggestion(cx) {
8858 self.update_visible_copilot_suggestion(cx);
8859 }
8860 cx.emit(EditorEvent::BufferEdited);
8861 cx.emit(SearchEvent::MatchesInvalidated);
8862
8863 if *singleton_buffer_edited {
8864 if let Some(project) = &self.project {
8865 let project = project.read(cx);
8866 let languages_affected = multibuffer
8867 .read(cx)
8868 .all_buffers()
8869 .into_iter()
8870 .filter_map(|buffer| {
8871 let buffer = buffer.read(cx);
8872 let language = buffer.language()?;
8873 if project.is_local()
8874 && project.language_servers_for_buffer(buffer, cx).count() == 0
8875 {
8876 None
8877 } else {
8878 Some(language)
8879 }
8880 })
8881 .cloned()
8882 .collect::<HashSet<_>>();
8883 if !languages_affected.is_empty() {
8884 self.refresh_inlay_hints(
8885 InlayHintRefreshReason::BufferEdited(languages_affected),
8886 cx,
8887 );
8888 }
8889 }
8890 }
8891
8892 let Some(project) = &self.project else { return };
8893 let telemetry = project.read(cx).client().telemetry().clone();
8894 telemetry.log_edit_event("editor");
8895 }
8896 multi_buffer::Event::ExcerptsAdded {
8897 buffer,
8898 predecessor,
8899 excerpts,
8900 } => {
8901 cx.emit(EditorEvent::ExcerptsAdded {
8902 buffer: buffer.clone(),
8903 predecessor: *predecessor,
8904 excerpts: excerpts.clone(),
8905 });
8906 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
8907 }
8908 multi_buffer::Event::ExcerptsRemoved { ids } => {
8909 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
8910 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
8911 }
8912 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
8913 multi_buffer::Event::LanguageChanged => {
8914 cx.emit(EditorEvent::Reparsed);
8915 cx.notify();
8916 }
8917 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
8918 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
8919 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
8920 cx.emit(EditorEvent::TitleChanged)
8921 }
8922 multi_buffer::Event::DiffBaseChanged => cx.emit(EditorEvent::DiffBaseChanged),
8923 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
8924 multi_buffer::Event::DiagnosticsUpdated => {
8925 self.refresh_active_diagnostics(cx);
8926 }
8927 _ => {}
8928 };
8929 }
8930
8931 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
8932 cx.notify();
8933 }
8934
8935 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
8936 self.refresh_copilot_suggestions(true, cx);
8937 self.refresh_inlay_hints(
8938 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
8939 self.selections.newest_anchor().head(),
8940 &self.buffer.read(cx).snapshot(cx),
8941 cx,
8942 )),
8943 cx,
8944 );
8945 let editor_settings = EditorSettings::get_global(cx);
8946 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
8947 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
8948 cx.notify();
8949 }
8950
8951 pub fn set_searchable(&mut self, searchable: bool) {
8952 self.searchable = searchable;
8953 }
8954
8955 pub fn searchable(&self) -> bool {
8956 self.searchable
8957 }
8958
8959 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
8960 let buffer = self.buffer.read(cx);
8961 if buffer.is_singleton() {
8962 cx.propagate();
8963 return;
8964 }
8965
8966 let Some(workspace) = self.workspace() else {
8967 cx.propagate();
8968 return;
8969 };
8970
8971 let mut new_selections_by_buffer = HashMap::default();
8972 for selection in self.selections.all::<usize>(cx) {
8973 for (buffer, mut range, _) in
8974 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
8975 {
8976 if selection.reversed {
8977 mem::swap(&mut range.start, &mut range.end);
8978 }
8979 new_selections_by_buffer
8980 .entry(buffer)
8981 .or_insert(Vec::new())
8982 .push(range)
8983 }
8984 }
8985
8986 self.push_to_nav_history(self.selections.newest_anchor().head(), None, cx);
8987
8988 // We defer the pane interaction because we ourselves are a workspace item
8989 // and activating a new item causes the pane to call a method on us reentrantly,
8990 // which panics if we're on the stack.
8991 cx.window_context().defer(move |cx| {
8992 workspace.update(cx, |workspace, cx| {
8993 let pane = workspace.active_pane().clone();
8994 pane.update(cx, |pane, _| pane.disable_history());
8995
8996 for (buffer, ranges) in new_selections_by_buffer.into_iter() {
8997 let editor = workspace.open_project_item::<Self>(buffer, cx);
8998 editor.update(cx, |editor, cx| {
8999 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9000 s.select_ranges(ranges);
9001 });
9002 });
9003 }
9004
9005 pane.update(cx, |pane, _| pane.enable_history());
9006 })
9007 });
9008 }
9009
9010 fn jump(
9011 &mut self,
9012 path: ProjectPath,
9013 position: Point,
9014 anchor: language::Anchor,
9015 cx: &mut ViewContext<Self>,
9016 ) {
9017 let workspace = self.workspace();
9018 cx.spawn(|_, mut cx| async move {
9019 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9020 let editor = workspace.update(&mut cx, |workspace, cx| {
9021 workspace.open_path(path, None, true, cx)
9022 })?;
9023 let editor = editor
9024 .await?
9025 .downcast::<Editor>()
9026 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9027 .downgrade();
9028 editor.update(&mut cx, |editor, cx| {
9029 let buffer = editor
9030 .buffer()
9031 .read(cx)
9032 .as_singleton()
9033 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9034 let buffer = buffer.read(cx);
9035 let cursor = if buffer.can_resolve(&anchor) {
9036 language::ToPoint::to_point(&anchor, buffer)
9037 } else {
9038 buffer.clip_point(position, Bias::Left)
9039 };
9040
9041 let nav_history = editor.nav_history.take();
9042 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9043 s.select_ranges([cursor..cursor]);
9044 });
9045 editor.nav_history = nav_history;
9046
9047 anyhow::Ok(())
9048 })??;
9049
9050 anyhow::Ok(())
9051 })
9052 .detach_and_log_err(cx);
9053 }
9054
9055 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9056 let snapshot = self.buffer.read(cx).read(cx);
9057 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9058 Some(
9059 ranges
9060 .iter()
9061 .map(move |range| {
9062 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9063 })
9064 .collect(),
9065 )
9066 }
9067
9068 fn selection_replacement_ranges(
9069 &self,
9070 range: Range<OffsetUtf16>,
9071 cx: &AppContext,
9072 ) -> Vec<Range<OffsetUtf16>> {
9073 let selections = self.selections.all::<OffsetUtf16>(cx);
9074 let newest_selection = selections
9075 .iter()
9076 .max_by_key(|selection| selection.id)
9077 .unwrap();
9078 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9079 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9080 let snapshot = self.buffer.read(cx).read(cx);
9081 selections
9082 .into_iter()
9083 .map(|mut selection| {
9084 selection.start.0 =
9085 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9086 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9087 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9088 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9089 })
9090 .collect()
9091 }
9092
9093 fn report_copilot_event(
9094 &self,
9095 suggestion_id: Option<String>,
9096 suggestion_accepted: bool,
9097 cx: &AppContext,
9098 ) {
9099 let Some(project) = &self.project else { return };
9100
9101 // If None, we are either getting suggestions in a new, unsaved file, or in a file without an extension
9102 let file_extension = self
9103 .buffer
9104 .read(cx)
9105 .as_singleton()
9106 .and_then(|b| b.read(cx).file())
9107 .and_then(|file| Path::new(file.file_name(cx)).extension())
9108 .and_then(|e| e.to_str())
9109 .map(|a| a.to_string());
9110
9111 let telemetry = project.read(cx).client().telemetry().clone();
9112
9113 telemetry.report_copilot_event(suggestion_id, suggestion_accepted, file_extension)
9114 }
9115
9116 #[cfg(any(test, feature = "test-support"))]
9117 fn report_editor_event(
9118 &self,
9119 _operation: &'static str,
9120 _file_extension: Option<String>,
9121 _cx: &AppContext,
9122 ) {
9123 }
9124
9125 #[cfg(not(any(test, feature = "test-support")))]
9126 fn report_editor_event(
9127 &self,
9128 operation: &'static str,
9129 file_extension: Option<String>,
9130 cx: &AppContext,
9131 ) {
9132 let Some(project) = &self.project else { return };
9133
9134 // If None, we are in a file without an extension
9135 let file = self
9136 .buffer
9137 .read(cx)
9138 .as_singleton()
9139 .and_then(|b| b.read(cx).file());
9140 let file_extension = file_extension.or(file
9141 .as_ref()
9142 .and_then(|file| Path::new(file.file_name(cx)).extension())
9143 .and_then(|e| e.to_str())
9144 .map(|a| a.to_string()));
9145
9146 let vim_mode = cx
9147 .global::<SettingsStore>()
9148 .raw_user_settings()
9149 .get("vim_mode")
9150 == Some(&serde_json::Value::Bool(true));
9151 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9152 let copilot_enabled_for_language = self
9153 .buffer
9154 .read(cx)
9155 .settings_at(0, cx)
9156 .show_copilot_suggestions;
9157
9158 let telemetry = project.read(cx).client().telemetry().clone();
9159 telemetry.report_editor_event(
9160 file_extension,
9161 vim_mode,
9162 operation,
9163 copilot_enabled,
9164 copilot_enabled_for_language,
9165 )
9166 }
9167
9168 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9169 /// with each line being an array of {text, highlight} objects.
9170 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9171 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9172 return;
9173 };
9174
9175 #[derive(Serialize)]
9176 struct Chunk<'a> {
9177 text: String,
9178 highlight: Option<&'a str>,
9179 }
9180
9181 let snapshot = buffer.read(cx).snapshot();
9182 let range = self
9183 .selected_text_range(cx)
9184 .and_then(|selected_range| {
9185 if selected_range.is_empty() {
9186 None
9187 } else {
9188 Some(selected_range)
9189 }
9190 })
9191 .unwrap_or_else(|| 0..snapshot.len());
9192
9193 let chunks = snapshot.chunks(range, true);
9194 let mut lines = Vec::new();
9195 let mut line: VecDeque<Chunk> = VecDeque::new();
9196
9197 let Some(style) = self.style.as_ref() else {
9198 return;
9199 };
9200
9201 for chunk in chunks {
9202 let highlight = chunk
9203 .syntax_highlight_id
9204 .and_then(|id| id.name(&style.syntax));
9205 let mut chunk_lines = chunk.text.split("\n").peekable();
9206 while let Some(text) = chunk_lines.next() {
9207 let mut merged_with_last_token = false;
9208 if let Some(last_token) = line.back_mut() {
9209 if last_token.highlight == highlight {
9210 last_token.text.push_str(text);
9211 merged_with_last_token = true;
9212 }
9213 }
9214
9215 if !merged_with_last_token {
9216 line.push_back(Chunk {
9217 text: text.into(),
9218 highlight,
9219 });
9220 }
9221
9222 if chunk_lines.peek().is_some() {
9223 if line.len() > 1 && line.front().unwrap().text.is_empty() {
9224 line.pop_front();
9225 }
9226 if line.len() > 1 && line.back().unwrap().text.is_empty() {
9227 line.pop_back();
9228 }
9229
9230 lines.push(mem::take(&mut line));
9231 }
9232 }
9233 }
9234
9235 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
9236 return;
9237 };
9238 cx.write_to_clipboard(ClipboardItem::new(lines));
9239 }
9240
9241 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
9242 &self.inlay_hint_cache
9243 }
9244
9245 pub fn replay_insert_event(
9246 &mut self,
9247 text: &str,
9248 relative_utf16_range: Option<Range<isize>>,
9249 cx: &mut ViewContext<Self>,
9250 ) {
9251 if !self.input_enabled {
9252 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9253 return;
9254 }
9255 if let Some(relative_utf16_range) = relative_utf16_range {
9256 let selections = self.selections.all::<OffsetUtf16>(cx);
9257 self.change_selections(None, cx, |s| {
9258 let new_ranges = selections.into_iter().map(|range| {
9259 let start = OffsetUtf16(
9260 range
9261 .head()
9262 .0
9263 .saturating_add_signed(relative_utf16_range.start),
9264 );
9265 let end = OffsetUtf16(
9266 range
9267 .head()
9268 .0
9269 .saturating_add_signed(relative_utf16_range.end),
9270 );
9271 start..end
9272 });
9273 s.select_ranges(new_ranges);
9274 });
9275 }
9276
9277 self.handle_input(text, cx);
9278 }
9279
9280 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
9281 let Some(project) = self.project.as_ref() else {
9282 return false;
9283 };
9284 let project = project.read(cx);
9285
9286 let mut supports = false;
9287 self.buffer().read(cx).for_each_buffer(|buffer| {
9288 if !supports {
9289 supports = project
9290 .language_servers_for_buffer(buffer.read(cx), cx)
9291 .any(
9292 |(_, server)| match server.capabilities().inlay_hint_provider {
9293 Some(lsp::OneOf::Left(enabled)) => enabled,
9294 Some(lsp::OneOf::Right(_)) => true,
9295 None => false,
9296 },
9297 )
9298 }
9299 });
9300 supports
9301 }
9302
9303 pub fn focus(&self, cx: &mut WindowContext) {
9304 cx.focus(&self.focus_handle)
9305 }
9306
9307 pub fn is_focused(&self, cx: &WindowContext) -> bool {
9308 self.focus_handle.is_focused(cx)
9309 }
9310
9311 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
9312 cx.emit(EditorEvent::Focused);
9313
9314 if let Some(rename) = self.pending_rename.as_ref() {
9315 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
9316 cx.focus(&rename_editor_focus_handle);
9317 } else {
9318 self.blink_manager.update(cx, BlinkManager::enable);
9319 self.show_cursor_names(cx);
9320 self.buffer.update(cx, |buffer, cx| {
9321 buffer.finalize_last_transaction(cx);
9322 if self.leader_peer_id.is_none() {
9323 buffer.set_active_selections(
9324 &self.selections.disjoint_anchors(),
9325 self.selections.line_mode,
9326 self.cursor_shape,
9327 cx,
9328 );
9329 }
9330 });
9331 }
9332 }
9333
9334 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
9335 self.blink_manager.update(cx, BlinkManager::disable);
9336 self.buffer
9337 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
9338 self.hide_context_menu(cx);
9339 hide_hover(self, cx);
9340 cx.emit(EditorEvent::Blurred);
9341 cx.notify();
9342 }
9343
9344 pub fn register_action<A: Action>(
9345 &mut self,
9346 listener: impl Fn(&A, &mut WindowContext) + 'static,
9347 ) -> &mut Self {
9348 let listener = Arc::new(listener);
9349
9350 self.editor_actions.push(Box::new(move |cx| {
9351 let _view = cx.view().clone();
9352 let cx = cx.window_context();
9353 let listener = listener.clone();
9354 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
9355 let action = action.downcast_ref().unwrap();
9356 if phase == DispatchPhase::Bubble {
9357 listener(action, cx)
9358 }
9359 })
9360 }));
9361 self
9362 }
9363}
9364
9365pub trait CollaborationHub {
9366 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
9367 fn user_participant_indices<'a>(
9368 &self,
9369 cx: &'a AppContext,
9370 ) -> &'a HashMap<u64, ParticipantIndex>;
9371 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
9372}
9373
9374impl CollaborationHub for Model<Project> {
9375 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
9376 self.read(cx).collaborators()
9377 }
9378
9379 fn user_participant_indices<'a>(
9380 &self,
9381 cx: &'a AppContext,
9382 ) -> &'a HashMap<u64, ParticipantIndex> {
9383 self.read(cx).user_store().read(cx).participant_indices()
9384 }
9385
9386 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
9387 let this = self.read(cx);
9388 let user_ids = this.collaborators().values().map(|c| c.user_id);
9389 this.user_store().read_with(cx, |user_store, cx| {
9390 user_store.participant_names(user_ids, cx)
9391 })
9392 }
9393}
9394
9395pub trait CompletionProvider {
9396 fn completions(
9397 &self,
9398 buffer: &Model<Buffer>,
9399 buffer_position: text::Anchor,
9400 cx: &mut ViewContext<Editor>,
9401 ) -> Task<Result<Vec<Completion>>>;
9402
9403 fn resolve_completions(
9404 &self,
9405 completion_indices: Vec<usize>,
9406 completions: Arc<RwLock<Box<[Completion]>>>,
9407 cx: &mut ViewContext<Editor>,
9408 ) -> Task<Result<bool>>;
9409
9410 fn apply_additional_edits_for_completion(
9411 &self,
9412 buffer: Model<Buffer>,
9413 completion: Completion,
9414 push_to_history: bool,
9415 cx: &mut ViewContext<Editor>,
9416 ) -> Task<Result<Option<language::Transaction>>>;
9417}
9418
9419impl CompletionProvider for Model<Project> {
9420 fn completions(
9421 &self,
9422 buffer: &Model<Buffer>,
9423 buffer_position: text::Anchor,
9424 cx: &mut ViewContext<Editor>,
9425 ) -> Task<Result<Vec<Completion>>> {
9426 self.update(cx, |project, cx| {
9427 project.completions(&buffer, buffer_position, cx)
9428 })
9429 }
9430
9431 fn resolve_completions(
9432 &self,
9433 completion_indices: Vec<usize>,
9434 completions: Arc<RwLock<Box<[Completion]>>>,
9435 cx: &mut ViewContext<Editor>,
9436 ) -> Task<Result<bool>> {
9437 self.update(cx, |project, cx| {
9438 project.resolve_completions(completion_indices, completions, cx)
9439 })
9440 }
9441
9442 fn apply_additional_edits_for_completion(
9443 &self,
9444 buffer: Model<Buffer>,
9445 completion: Completion,
9446 push_to_history: bool,
9447 cx: &mut ViewContext<Editor>,
9448 ) -> Task<Result<Option<language::Transaction>>> {
9449 self.update(cx, |project, cx| {
9450 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
9451 })
9452 }
9453}
9454
9455fn inlay_hint_settings(
9456 location: Anchor,
9457 snapshot: &MultiBufferSnapshot,
9458 cx: &mut ViewContext<'_, Editor>,
9459) -> InlayHintSettings {
9460 let file = snapshot.file_at(location);
9461 let language = snapshot.language_at(location);
9462 let settings = all_language_settings(file, cx);
9463 settings
9464 .language(language.map(|l| l.name()).as_deref())
9465 .inlay_hints
9466}
9467
9468fn consume_contiguous_rows(
9469 contiguous_row_selections: &mut Vec<Selection<Point>>,
9470 selection: &Selection<Point>,
9471 display_map: &DisplaySnapshot,
9472 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
9473) -> (u32, u32) {
9474 contiguous_row_selections.push(selection.clone());
9475 let start_row = selection.start.row;
9476 let mut end_row = ending_row(selection, display_map);
9477
9478 while let Some(next_selection) = selections.peek() {
9479 if next_selection.start.row <= end_row {
9480 end_row = ending_row(next_selection, display_map);
9481 contiguous_row_selections.push(selections.next().unwrap().clone());
9482 } else {
9483 break;
9484 }
9485 }
9486 (start_row, end_row)
9487}
9488
9489fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
9490 if next_selection.end.column > 0 || next_selection.is_empty() {
9491 display_map.next_line_boundary(next_selection.end).0.row + 1
9492 } else {
9493 next_selection.end.row
9494 }
9495}
9496
9497impl EditorSnapshot {
9498 pub fn remote_selections_in_range<'a>(
9499 &'a self,
9500 range: &'a Range<Anchor>,
9501 collaboration_hub: &dyn CollaborationHub,
9502 cx: &'a AppContext,
9503 ) -> impl 'a + Iterator<Item = RemoteSelection> {
9504 let participant_names = collaboration_hub.user_names(cx);
9505 let participant_indices = collaboration_hub.user_participant_indices(cx);
9506 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
9507 let collaborators_by_replica_id = collaborators_by_peer_id
9508 .iter()
9509 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
9510 .collect::<HashMap<_, _>>();
9511 self.buffer_snapshot
9512 .remote_selections_in_range(range)
9513 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
9514 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
9515 let participant_index = participant_indices.get(&collaborator.user_id).copied();
9516 let user_name = participant_names.get(&collaborator.user_id).cloned();
9517 Some(RemoteSelection {
9518 replica_id,
9519 selection,
9520 cursor_shape,
9521 line_mode,
9522 participant_index,
9523 peer_id: collaborator.peer_id,
9524 user_name,
9525 })
9526 })
9527 }
9528
9529 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
9530 self.display_snapshot.buffer_snapshot.language_at(position)
9531 }
9532
9533 pub fn is_focused(&self) -> bool {
9534 self.is_focused
9535 }
9536
9537 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
9538 self.placeholder_text.as_ref()
9539 }
9540
9541 pub fn scroll_position(&self) -> gpui::Point<f32> {
9542 self.scroll_anchor.scroll_position(&self.display_snapshot)
9543 }
9544
9545 pub fn gutter_dimensions(
9546 &self,
9547 font_id: FontId,
9548 font_size: Pixels,
9549 em_width: Pixels,
9550 max_line_number_width: Pixels,
9551 cx: &AppContext,
9552 ) -> GutterDimensions {
9553 if self.show_gutter {
9554 let descent = cx.text_system().descent(font_id, font_size);
9555 let gutter_padding_factor = 4.0;
9556 let gutter_padding = (em_width * gutter_padding_factor).round();
9557 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
9558 let min_width_for_number_on_gutter = em_width * 4.0;
9559 let gutter_width =
9560 max_line_number_width.max(min_width_for_number_on_gutter) + gutter_padding * 2.0;
9561 let gutter_margin = -descent;
9562
9563 GutterDimensions {
9564 padding: gutter_padding,
9565 width: gutter_width,
9566 margin: gutter_margin,
9567 }
9568 } else {
9569 GutterDimensions::default()
9570 }
9571 }
9572}
9573
9574impl Deref for EditorSnapshot {
9575 type Target = DisplaySnapshot;
9576
9577 fn deref(&self) -> &Self::Target {
9578 &self.display_snapshot
9579 }
9580}
9581
9582#[derive(Clone, Debug, PartialEq, Eq)]
9583pub enum EditorEvent {
9584 InputIgnored {
9585 text: Arc<str>,
9586 },
9587 InputHandled {
9588 utf16_range_to_replace: Option<Range<isize>>,
9589 text: Arc<str>,
9590 },
9591 ExcerptsAdded {
9592 buffer: Model<Buffer>,
9593 predecessor: ExcerptId,
9594 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
9595 },
9596 ExcerptsRemoved {
9597 ids: Vec<ExcerptId>,
9598 },
9599 BufferEdited,
9600 Edited,
9601 Reparsed,
9602 Focused,
9603 Blurred,
9604 DirtyChanged,
9605 Saved,
9606 TitleChanged,
9607 DiffBaseChanged,
9608 SelectionsChanged {
9609 local: bool,
9610 },
9611 ScrollPositionChanged {
9612 local: bool,
9613 autoscroll: bool,
9614 },
9615 Closed,
9616}
9617
9618impl EventEmitter<EditorEvent> for Editor {}
9619
9620impl FocusableView for Editor {
9621 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
9622 self.focus_handle.clone()
9623 }
9624}
9625
9626impl Render for Editor {
9627 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
9628 let settings = ThemeSettings::get_global(cx);
9629 let text_style = match self.mode {
9630 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
9631 color: cx.theme().colors().editor_foreground,
9632 font_family: settings.ui_font.family.clone(),
9633 font_features: settings.ui_font.features,
9634 font_size: rems(0.875).into(),
9635 font_weight: FontWeight::NORMAL,
9636 font_style: FontStyle::Normal,
9637 line_height: relative(settings.buffer_line_height.value()),
9638 background_color: None,
9639 underline: None,
9640 strikethrough: None,
9641 white_space: WhiteSpace::Normal,
9642 },
9643
9644 EditorMode::Full => TextStyle {
9645 color: cx.theme().colors().editor_foreground,
9646 font_family: settings.buffer_font.family.clone(),
9647 font_features: settings.buffer_font.features,
9648 font_size: settings.buffer_font_size(cx).into(),
9649 font_weight: FontWeight::NORMAL,
9650 font_style: FontStyle::Normal,
9651 line_height: relative(settings.buffer_line_height.value()),
9652 background_color: None,
9653 underline: None,
9654 strikethrough: None,
9655 white_space: WhiteSpace::Normal,
9656 },
9657 };
9658
9659 let background = match self.mode {
9660 EditorMode::SingleLine => cx.theme().system().transparent,
9661 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
9662 EditorMode::Full => cx.theme().colors().editor_background,
9663 };
9664
9665 EditorElement::new(
9666 cx.view(),
9667 EditorStyle {
9668 background,
9669 local_player: cx.theme().players().local(),
9670 text: text_style,
9671 scrollbar_width: px(12.),
9672 syntax: cx.theme().syntax().clone(),
9673 status: cx.theme().status().clone(),
9674 inlays_style: HighlightStyle {
9675 color: Some(cx.theme().status().hint),
9676 font_weight: Some(FontWeight::BOLD),
9677 ..HighlightStyle::default()
9678 },
9679 suggestions_style: HighlightStyle {
9680 color: Some(cx.theme().status().predictive),
9681 ..HighlightStyle::default()
9682 },
9683 },
9684 )
9685 }
9686}
9687
9688impl ViewInputHandler for Editor {
9689 fn text_for_range(
9690 &mut self,
9691 range_utf16: Range<usize>,
9692 cx: &mut ViewContext<Self>,
9693 ) -> Option<String> {
9694 Some(
9695 self.buffer
9696 .read(cx)
9697 .read(cx)
9698 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
9699 .collect(),
9700 )
9701 }
9702
9703 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9704 // Prevent the IME menu from appearing when holding down an alphabetic key
9705 // while input is disabled.
9706 if !self.input_enabled {
9707 return None;
9708 }
9709
9710 let range = self.selections.newest::<OffsetUtf16>(cx).range();
9711 Some(range.start.0..range.end.0)
9712 }
9713
9714 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
9715 let snapshot = self.buffer.read(cx).read(cx);
9716 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
9717 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
9718 }
9719
9720 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
9721 self.clear_highlights::<InputComposition>(cx);
9722 self.ime_transaction.take();
9723 }
9724
9725 fn replace_text_in_range(
9726 &mut self,
9727 range_utf16: Option<Range<usize>>,
9728 text: &str,
9729 cx: &mut ViewContext<Self>,
9730 ) {
9731 if !self.input_enabled {
9732 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9733 return;
9734 }
9735
9736 self.transact(cx, |this, cx| {
9737 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
9738 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9739 Some(this.selection_replacement_ranges(range_utf16, cx))
9740 } else {
9741 this.marked_text_ranges(cx)
9742 };
9743
9744 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
9745 let newest_selection_id = this.selections.newest_anchor().id;
9746 this.selections
9747 .all::<OffsetUtf16>(cx)
9748 .iter()
9749 .zip(ranges_to_replace.iter())
9750 .find_map(|(selection, range)| {
9751 if selection.id == newest_selection_id {
9752 Some(
9753 (range.start.0 as isize - selection.head().0 as isize)
9754 ..(range.end.0 as isize - selection.head().0 as isize),
9755 )
9756 } else {
9757 None
9758 }
9759 })
9760 });
9761
9762 cx.emit(EditorEvent::InputHandled {
9763 utf16_range_to_replace: range_to_replace,
9764 text: text.into(),
9765 });
9766
9767 if let Some(new_selected_ranges) = new_selected_ranges {
9768 this.change_selections(None, cx, |selections| {
9769 selections.select_ranges(new_selected_ranges)
9770 });
9771 this.backspace(&Default::default(), cx);
9772 }
9773
9774 this.handle_input(text, cx);
9775 });
9776
9777 if let Some(transaction) = self.ime_transaction {
9778 self.buffer.update(cx, |buffer, cx| {
9779 buffer.group_until_transaction(transaction, cx);
9780 });
9781 }
9782
9783 self.unmark_text(cx);
9784 }
9785
9786 fn replace_and_mark_text_in_range(
9787 &mut self,
9788 range_utf16: Option<Range<usize>>,
9789 text: &str,
9790 new_selected_range_utf16: Option<Range<usize>>,
9791 cx: &mut ViewContext<Self>,
9792 ) {
9793 if !self.input_enabled {
9794 cx.emit(EditorEvent::InputIgnored { text: text.into() });
9795 return;
9796 }
9797
9798 let transaction = self.transact(cx, |this, cx| {
9799 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
9800 let snapshot = this.buffer.read(cx).read(cx);
9801 if let Some(relative_range_utf16) = range_utf16.as_ref() {
9802 for marked_range in &mut marked_ranges {
9803 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
9804 marked_range.start.0 += relative_range_utf16.start;
9805 marked_range.start =
9806 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
9807 marked_range.end =
9808 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
9809 }
9810 }
9811 Some(marked_ranges)
9812 } else if let Some(range_utf16) = range_utf16 {
9813 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
9814 Some(this.selection_replacement_ranges(range_utf16, cx))
9815 } else {
9816 None
9817 };
9818
9819 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
9820 let newest_selection_id = this.selections.newest_anchor().id;
9821 this.selections
9822 .all::<OffsetUtf16>(cx)
9823 .iter()
9824 .zip(ranges_to_replace.iter())
9825 .find_map(|(selection, range)| {
9826 if selection.id == newest_selection_id {
9827 Some(
9828 (range.start.0 as isize - selection.head().0 as isize)
9829 ..(range.end.0 as isize - selection.head().0 as isize),
9830 )
9831 } else {
9832 None
9833 }
9834 })
9835 });
9836
9837 cx.emit(EditorEvent::InputHandled {
9838 utf16_range_to_replace: range_to_replace,
9839 text: text.into(),
9840 });
9841
9842 if let Some(ranges) = ranges_to_replace {
9843 this.change_selections(None, cx, |s| s.select_ranges(ranges));
9844 }
9845
9846 let marked_ranges = {
9847 let snapshot = this.buffer.read(cx).read(cx);
9848 this.selections
9849 .disjoint_anchors()
9850 .iter()
9851 .map(|selection| {
9852 selection.start.bias_left(&*snapshot)..selection.end.bias_right(&*snapshot)
9853 })
9854 .collect::<Vec<_>>()
9855 };
9856
9857 if text.is_empty() {
9858 this.unmark_text(cx);
9859 } else {
9860 this.highlight_text::<InputComposition>(
9861 marked_ranges.clone(),
9862 HighlightStyle {
9863 underline: Some(UnderlineStyle {
9864 thickness: px(1.),
9865 color: None,
9866 wavy: false,
9867 }),
9868 ..Default::default()
9869 },
9870 cx,
9871 );
9872 }
9873
9874 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
9875 let use_autoclose = this.use_autoclose;
9876 this.set_use_autoclose(false);
9877 this.handle_input(text, cx);
9878 this.set_use_autoclose(use_autoclose);
9879
9880 if let Some(new_selected_range) = new_selected_range_utf16 {
9881 let snapshot = this.buffer.read(cx).read(cx);
9882 let new_selected_ranges = marked_ranges
9883 .into_iter()
9884 .map(|marked_range| {
9885 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
9886 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
9887 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
9888 snapshot.clip_offset_utf16(new_start, Bias::Left)
9889 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
9890 })
9891 .collect::<Vec<_>>();
9892
9893 drop(snapshot);
9894 this.change_selections(None, cx, |selections| {
9895 selections.select_ranges(new_selected_ranges)
9896 });
9897 }
9898 });
9899
9900 self.ime_transaction = self.ime_transaction.or(transaction);
9901 if let Some(transaction) = self.ime_transaction {
9902 self.buffer.update(cx, |buffer, cx| {
9903 buffer.group_until_transaction(transaction, cx);
9904 });
9905 }
9906
9907 if self.text_highlights::<InputComposition>(cx).is_none() {
9908 self.ime_transaction.take();
9909 }
9910 }
9911
9912 fn bounds_for_range(
9913 &mut self,
9914 range_utf16: Range<usize>,
9915 element_bounds: gpui::Bounds<Pixels>,
9916 cx: &mut ViewContext<Self>,
9917 ) -> Option<gpui::Bounds<Pixels>> {
9918 let text_layout_details = self.text_layout_details(cx);
9919 let style = &text_layout_details.editor_style;
9920 let font_id = cx.text_system().resolve_font(&style.text.font());
9921 let font_size = style.text.font_size.to_pixels(cx.rem_size());
9922 let line_height = style.text.line_height_in_pixels(cx.rem_size());
9923 let em_width = cx
9924 .text_system()
9925 .typographic_bounds(font_id, font_size, 'm')
9926 .unwrap()
9927 .size
9928 .width;
9929
9930 let snapshot = self.snapshot(cx);
9931 let scroll_position = snapshot.scroll_position();
9932 let scroll_left = scroll_position.x * em_width;
9933
9934 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
9935 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
9936 + self.gutter_width;
9937 let y = line_height * (start.row() as f32 - scroll_position.y);
9938
9939 Some(Bounds {
9940 origin: element_bounds.origin + point(x, y),
9941 size: size(em_width, line_height),
9942 })
9943 }
9944}
9945
9946trait SelectionExt {
9947 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
9948 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
9949 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
9950 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
9951 -> Range<u32>;
9952}
9953
9954impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
9955 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
9956 let start = self.start.to_point(buffer);
9957 let end = self.end.to_point(buffer);
9958 if self.reversed {
9959 end..start
9960 } else {
9961 start..end
9962 }
9963 }
9964
9965 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
9966 let start = self.start.to_offset(buffer);
9967 let end = self.end.to_offset(buffer);
9968 if self.reversed {
9969 end..start
9970 } else {
9971 start..end
9972 }
9973 }
9974
9975 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
9976 let start = self
9977 .start
9978 .to_point(&map.buffer_snapshot)
9979 .to_display_point(map);
9980 let end = self
9981 .end
9982 .to_point(&map.buffer_snapshot)
9983 .to_display_point(map);
9984 if self.reversed {
9985 end..start
9986 } else {
9987 start..end
9988 }
9989 }
9990
9991 fn spanned_rows(
9992 &self,
9993 include_end_if_at_line_start: bool,
9994 map: &DisplaySnapshot,
9995 ) -> Range<u32> {
9996 let start = self.start.to_point(&map.buffer_snapshot);
9997 let mut end = self.end.to_point(&map.buffer_snapshot);
9998 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
9999 end.row -= 1;
10000 }
10001
10002 let buffer_start = map.prev_line_boundary(start).0;
10003 let buffer_end = map.next_line_boundary(end).0;
10004 buffer_start.row..buffer_end.row + 1
10005 }
10006}
10007
10008impl<T: InvalidationRegion> InvalidationStack<T> {
10009 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10010 where
10011 S: Clone + ToOffset,
10012 {
10013 while let Some(region) = self.last() {
10014 let all_selections_inside_invalidation_ranges =
10015 if selections.len() == region.ranges().len() {
10016 selections
10017 .iter()
10018 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10019 .all(|(selection, invalidation_range)| {
10020 let head = selection.head().to_offset(buffer);
10021 invalidation_range.start <= head && invalidation_range.end >= head
10022 })
10023 } else {
10024 false
10025 };
10026
10027 if all_selections_inside_invalidation_ranges {
10028 break;
10029 } else {
10030 self.pop();
10031 }
10032 }
10033 }
10034}
10035
10036impl<T> Default for InvalidationStack<T> {
10037 fn default() -> Self {
10038 Self(Default::default())
10039 }
10040}
10041
10042impl<T> Deref for InvalidationStack<T> {
10043 type Target = Vec<T>;
10044
10045 fn deref(&self) -> &Self::Target {
10046 &self.0
10047 }
10048}
10049
10050impl<T> DerefMut for InvalidationStack<T> {
10051 fn deref_mut(&mut self) -> &mut Self::Target {
10052 &mut self.0
10053 }
10054}
10055
10056impl InvalidationRegion for SnippetState {
10057 fn ranges(&self) -> &[Range<Anchor>] {
10058 &self.ranges[self.active_index]
10059 }
10060}
10061
10062pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10063 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10064
10065 Arc::new(move |cx: &mut BlockContext| {
10066 let group_id: SharedString = cx.block_id.to_string().into();
10067
10068 let mut text_style = cx.text_style().clone();
10069 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10070
10071 h_flex()
10072 .id(cx.block_id)
10073 .group(group_id.clone())
10074 .relative()
10075 .size_full()
10076 .pl(cx.gutter_width)
10077 .w(cx.max_width + cx.gutter_width)
10078 .child(div().flex().w(cx.anchor_x - cx.gutter_width).flex_shrink())
10079 .child(div().flex().flex_shrink_0().child(
10080 StyledText::new(text_without_backticks.clone()).with_highlights(
10081 &text_style,
10082 code_ranges.iter().map(|range| {
10083 (
10084 range.clone(),
10085 HighlightStyle {
10086 font_weight: Some(FontWeight::BOLD),
10087 ..Default::default()
10088 },
10089 )
10090 }),
10091 ),
10092 ))
10093 .child(
10094 IconButton::new(("copy-block", cx.block_id), IconName::Copy)
10095 .icon_color(Color::Muted)
10096 .size(ButtonSize::Compact)
10097 .style(ButtonStyle::Transparent)
10098 .visible_on_hover(group_id)
10099 .on_click({
10100 let message = diagnostic.message.clone();
10101 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
10102 })
10103 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
10104 )
10105 .into_any_element()
10106 })
10107}
10108
10109pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
10110 let mut text_without_backticks = String::new();
10111 let mut code_ranges = Vec::new();
10112
10113 if let Some(source) = &diagnostic.source {
10114 text_without_backticks.push_str(&source);
10115 code_ranges.push(0..source.len());
10116 text_without_backticks.push_str(": ");
10117 }
10118
10119 let mut prev_offset = 0;
10120 let mut in_code_block = false;
10121 for (ix, _) in diagnostic
10122 .message
10123 .match_indices('`')
10124 .chain([(diagnostic.message.len(), "")])
10125 {
10126 let prev_len = text_without_backticks.len();
10127 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
10128 prev_offset = ix + 1;
10129 if in_code_block {
10130 code_ranges.push(prev_len..text_without_backticks.len());
10131 in_code_block = false;
10132 } else {
10133 in_code_block = true;
10134 }
10135 }
10136
10137 (text_without_backticks.into(), code_ranges)
10138}
10139
10140fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
10141 match (severity, valid) {
10142 (DiagnosticSeverity::ERROR, true) => colors.error,
10143 (DiagnosticSeverity::ERROR, false) => colors.error,
10144 (DiagnosticSeverity::WARNING, true) => colors.warning,
10145 (DiagnosticSeverity::WARNING, false) => colors.warning,
10146 (DiagnosticSeverity::INFORMATION, true) => colors.info,
10147 (DiagnosticSeverity::INFORMATION, false) => colors.info,
10148 (DiagnosticSeverity::HINT, true) => colors.info,
10149 (DiagnosticSeverity::HINT, false) => colors.info,
10150 _ => colors.ignored,
10151 }
10152}
10153
10154pub fn styled_runs_for_code_label<'a>(
10155 label: &'a CodeLabel,
10156 syntax_theme: &'a theme::SyntaxTheme,
10157) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
10158 let fade_out = HighlightStyle {
10159 fade_out: Some(0.35),
10160 ..Default::default()
10161 };
10162
10163 let mut prev_end = label.filter_range.end;
10164 label
10165 .runs
10166 .iter()
10167 .enumerate()
10168 .flat_map(move |(ix, (range, highlight_id))| {
10169 let style = if let Some(style) = highlight_id.style(syntax_theme) {
10170 style
10171 } else {
10172 return Default::default();
10173 };
10174 let mut muted_style = style;
10175 muted_style.highlight(fade_out);
10176
10177 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
10178 if range.start >= label.filter_range.end {
10179 if range.start > prev_end {
10180 runs.push((prev_end..range.start, fade_out));
10181 }
10182 runs.push((range.clone(), muted_style));
10183 } else if range.end <= label.filter_range.end {
10184 runs.push((range.clone(), style));
10185 } else {
10186 runs.push((range.start..label.filter_range.end, style));
10187 runs.push((label.filter_range.end..range.end, muted_style));
10188 }
10189 prev_end = cmp::max(prev_end, range.end);
10190
10191 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
10192 runs.push((prev_end..label.text.len(), fade_out));
10193 }
10194
10195 runs
10196 })
10197}
10198
10199pub(crate) fn split_words<'a>(text: &'a str) -> impl std::iter::Iterator<Item = &'a str> + 'a {
10200 let mut index = 0;
10201 let mut codepoints = text.char_indices().peekable();
10202
10203 std::iter::from_fn(move || {
10204 let start_index = index;
10205 while let Some((new_index, codepoint)) = codepoints.next() {
10206 index = new_index + codepoint.len_utf8();
10207 let current_upper = codepoint.is_uppercase();
10208 let next_upper = codepoints
10209 .peek()
10210 .map(|(_, c)| c.is_uppercase())
10211 .unwrap_or(false);
10212
10213 if !current_upper && next_upper {
10214 return Some(&text[start_index..index]);
10215 }
10216 }
10217
10218 index = text.len();
10219 if start_index < text.len() {
10220 return Some(&text[start_index..]);
10221 }
10222 None
10223 })
10224 .flat_map(|word| word.split_inclusive('_'))
10225 .flat_map(|word| word.split_inclusive('-'))
10226}
10227
10228trait RangeToAnchorExt {
10229 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
10230}
10231
10232impl<T: ToOffset> RangeToAnchorExt for Range<T> {
10233 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
10234 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
10235 }
10236}