1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behaviour.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18pub mod display_map;
19mod editor_settings;
20mod element;
21mod hunk_diff;
22mod inlay_hint_cache;
23
24mod debounced_delay;
25mod git;
26mod highlight_matching_bracket;
27mod hover_links;
28mod hover_popover;
29mod inline_completion_provider;
30pub mod items;
31mod mouse_context_menu;
32pub mod movement;
33mod persistence;
34mod rust_analyzer_ext;
35pub mod scroll;
36mod selections_collection;
37
38#[cfg(test)]
39mod editor_tests;
40#[cfg(any(test, feature = "test-support"))]
41pub mod test;
42use ::git::diff::{DiffHunk, DiffHunkStatus};
43use ::git::permalink::{build_permalink, BuildPermalinkParams};
44pub(crate) use actions::*;
45use aho_corasick::AhoCorasick;
46use anyhow::{anyhow, Context as _, Result};
47use blink_manager::BlinkManager;
48use client::{Collaborator, ParticipantIndex};
49use clock::ReplicaId;
50use collections::{hash_map, BTreeMap, Bound, HashMap, HashSet, VecDeque};
51use convert_case::{Case, Casing};
52use debounced_delay::DebouncedDelay;
53pub use display_map::DisplayPoint;
54use display_map::*;
55pub use editor_settings::EditorSettings;
56use element::LineWithInvisibles;
57pub use element::{
58 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
59};
60use futures::FutureExt;
61use fuzzy::{StringMatch, StringMatchCandidate};
62use git::blame::GitBlame;
63use git::diff_hunk_to_display;
64use gpui::{
65 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
66 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
67 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
68 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, MouseButton, PaintQuad,
69 ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle, Styled, StyledText,
70 Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle, View, ViewContext,
71 ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
72};
73use highlight_matching_bracket::refresh_matching_bracket_highlights;
74use hover_popover::{hide_hover, HoverState};
75use hunk_diff::ExpandedHunks;
76pub(crate) use hunk_diff::HunkToExpand;
77use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
78pub use inline_completion_provider::*;
79pub use items::MAX_TAB_TITLE_LEN;
80use itertools::Itertools;
81use language::{
82 char_kind,
83 language_settings::{self, all_language_settings, InlayHintSettings},
84 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
85 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
86 Point, Selection, SelectionGoal, TransactionId,
87};
88
89use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
90use lsp::{DiagnosticSeverity, LanguageServerId};
91use mouse_context_menu::MouseContextMenu;
92use movement::TextLayoutDetails;
93use multi_buffer::ToOffsetUtf16;
94pub use multi_buffer::{
95 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
96 ToPoint,
97};
98use ordered_float::OrderedFloat;
99use parking_lot::{Mutex, RwLock};
100use project::project_settings::{GitGutterSetting, ProjectSettings};
101use project::{
102 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath, ProjectTransaction,
103};
104use rand::prelude::*;
105use rpc::{proto::*, ErrorExt};
106use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
107use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
108use serde::{Deserialize, Serialize};
109use settings::{Settings, SettingsStore};
110use smallvec::SmallVec;
111use snippet::Snippet;
112use std::ops::Not as _;
113use std::{
114 any::TypeId,
115 borrow::Cow,
116 cmp::{self, Ordering, Reverse},
117 mem,
118 num::NonZeroU32,
119 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
120 path::Path,
121 sync::Arc,
122 time::{Duration, Instant},
123};
124pub use sum_tree::Bias;
125use sum_tree::TreeMap;
126use text::{BufferId, OffsetUtf16, Rope};
127use theme::{
128 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
129 ThemeColors, ThemeSettings,
130};
131use ui::{
132 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
133 Tooltip,
134};
135use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
136use workspace::item::{ItemHandle, PreviewTabsSettings};
137use workspace::notifications::{DetachAndPromptErr, NotificationId};
138use workspace::{
139 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
140};
141use workspace::{OpenInTerminal, OpenTerminal, Toast};
142
143use crate::hover_links::find_url;
144
145pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
146const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
147const MAX_LINE_LEN: usize = 1024;
148const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
149const MAX_SELECTION_HISTORY_LEN: usize = 1024;
150pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
151#[doc(hidden)]
152pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
153#[doc(hidden)]
154pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
155
156pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
157
158pub fn render_parsed_markdown(
159 element_id: impl Into<ElementId>,
160 parsed: &language::ParsedMarkdown,
161 editor_style: &EditorStyle,
162 workspace: Option<WeakView<Workspace>>,
163 cx: &mut WindowContext,
164) -> InteractiveText {
165 let code_span_background_color = cx
166 .theme()
167 .colors()
168 .editor_document_highlight_read_background;
169
170 let highlights = gpui::combine_highlights(
171 parsed.highlights.iter().filter_map(|(range, highlight)| {
172 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
173 Some((range.clone(), highlight))
174 }),
175 parsed
176 .regions
177 .iter()
178 .zip(&parsed.region_ranges)
179 .filter_map(|(region, range)| {
180 if region.code {
181 Some((
182 range.clone(),
183 HighlightStyle {
184 background_color: Some(code_span_background_color),
185 ..Default::default()
186 },
187 ))
188 } else {
189 None
190 }
191 }),
192 );
193
194 let mut links = Vec::new();
195 let mut link_ranges = Vec::new();
196 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
197 if let Some(link) = region.link.clone() {
198 links.push(link);
199 link_ranges.push(range.clone());
200 }
201 }
202
203 InteractiveText::new(
204 element_id,
205 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
206 )
207 .on_click(link_ranges, move |clicked_range_ix, cx| {
208 match &links[clicked_range_ix] {
209 markdown::Link::Web { url } => cx.open_url(url),
210 markdown::Link::Path { path } => {
211 if let Some(workspace) = &workspace {
212 _ = workspace.update(cx, |workspace, cx| {
213 workspace.open_abs_path(path.clone(), false, cx).detach();
214 });
215 }
216 }
217 }
218 })
219}
220
221#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
222pub(crate) enum InlayId {
223 Suggestion(usize),
224 Hint(usize),
225}
226
227impl InlayId {
228 fn id(&self) -> usize {
229 match self {
230 Self::Suggestion(id) => *id,
231 Self::Hint(id) => *id,
232 }
233 }
234}
235
236enum DiffRowHighlight {}
237enum DocumentHighlightRead {}
238enum DocumentHighlightWrite {}
239enum InputComposition {}
240
241#[derive(Copy, Clone, PartialEq, Eq)]
242pub enum Direction {
243 Prev,
244 Next,
245}
246
247pub fn init_settings(cx: &mut AppContext) {
248 EditorSettings::register(cx);
249}
250
251pub fn init(cx: &mut AppContext) {
252 init_settings(cx);
253
254 workspace::register_project_item::<Editor>(cx);
255 workspace::register_followable_item::<Editor>(cx);
256 workspace::register_deserializable_item::<Editor>(cx);
257 cx.observe_new_views(
258 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
259 workspace.register_action(Editor::new_file);
260 workspace.register_action(Editor::new_file_in_direction);
261 },
262 )
263 .detach();
264
265 cx.on_action(move |_: &workspace::NewFile, cx| {
266 let app_state = workspace::AppState::global(cx);
267 if let Some(app_state) = app_state.upgrade() {
268 workspace::open_new(app_state, cx, |workspace, cx| {
269 Editor::new_file(workspace, &Default::default(), cx)
270 })
271 .detach();
272 }
273 });
274 cx.on_action(move |_: &workspace::NewWindow, cx| {
275 let app_state = workspace::AppState::global(cx);
276 if let Some(app_state) = app_state.upgrade() {
277 workspace::open_new(app_state, cx, |workspace, cx| {
278 Editor::new_file(workspace, &Default::default(), cx)
279 })
280 .detach();
281 }
282 });
283}
284
285pub struct SearchWithinRange;
286
287trait InvalidationRegion {
288 fn ranges(&self) -> &[Range<Anchor>];
289}
290
291#[derive(Clone, Debug, PartialEq)]
292pub enum SelectPhase {
293 Begin {
294 position: DisplayPoint,
295 add: bool,
296 click_count: usize,
297 },
298 BeginColumnar {
299 position: DisplayPoint,
300 goal_column: u32,
301 },
302 Extend {
303 position: DisplayPoint,
304 click_count: usize,
305 },
306 Update {
307 position: DisplayPoint,
308 goal_column: u32,
309 scroll_delta: gpui::Point<f32>,
310 },
311 End,
312}
313
314#[derive(Clone, Debug)]
315pub enum SelectMode {
316 Character,
317 Word(Range<Anchor>),
318 Line(Range<Anchor>),
319 All,
320}
321
322#[derive(Copy, Clone, PartialEq, Eq, Debug)]
323pub enum EditorMode {
324 SingleLine,
325 AutoHeight { max_lines: usize },
326 Full,
327}
328
329#[derive(Clone, Debug)]
330pub enum SoftWrap {
331 None,
332 PreferLine,
333 EditorWidth,
334 Column(u32),
335}
336
337#[derive(Clone)]
338pub struct EditorStyle {
339 pub background: Hsla,
340 pub local_player: PlayerColor,
341 pub text: TextStyle,
342 pub scrollbar_width: Pixels,
343 pub syntax: Arc<SyntaxTheme>,
344 pub status: StatusColors,
345 pub inlay_hints_style: HighlightStyle,
346 pub suggestions_style: HighlightStyle,
347}
348
349impl Default for EditorStyle {
350 fn default() -> Self {
351 Self {
352 background: Hsla::default(),
353 local_player: PlayerColor::default(),
354 text: TextStyle::default(),
355 scrollbar_width: Pixels::default(),
356 syntax: Default::default(),
357 // HACK: Status colors don't have a real default.
358 // We should look into removing the status colors from the editor
359 // style and retrieve them directly from the theme.
360 status: StatusColors::dark(),
361 inlay_hints_style: HighlightStyle::default(),
362 suggestions_style: HighlightStyle::default(),
363 }
364 }
365}
366
367type CompletionId = usize;
368
369// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
370// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
371
372type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
373
374struct ScrollbarMarkerState {
375 scrollbar_size: Size<Pixels>,
376 dirty: bool,
377 markers: Arc<[PaintQuad]>,
378 pending_refresh: Option<Task<Result<()>>>,
379}
380
381impl ScrollbarMarkerState {
382 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
383 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
384 }
385}
386
387impl Default for ScrollbarMarkerState {
388 fn default() -> Self {
389 Self {
390 scrollbar_size: Size::default(),
391 dirty: false,
392 markers: Arc::from([]),
393 pending_refresh: None,
394 }
395 }
396}
397
398/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
399///
400/// See the [module level documentation](self) for more information.
401pub struct Editor {
402 focus_handle: FocusHandle,
403 /// The text buffer being edited
404 buffer: Model<MultiBuffer>,
405 /// Map of how text in the buffer should be displayed.
406 /// Handles soft wraps, folds, fake inlay text insertions, etc.
407 pub display_map: Model<DisplayMap>,
408 pub selections: SelectionsCollection,
409 pub scroll_manager: ScrollManager,
410 columnar_selection_tail: Option<Anchor>,
411 add_selections_state: Option<AddSelectionsState>,
412 select_next_state: Option<SelectNextState>,
413 select_prev_state: Option<SelectNextState>,
414 selection_history: SelectionHistory,
415 autoclose_regions: Vec<AutocloseRegion>,
416 snippet_stack: InvalidationStack<SnippetState>,
417 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
418 ime_transaction: Option<TransactionId>,
419 active_diagnostics: Option<ActiveDiagnosticGroup>,
420 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
421 project: Option<Model<Project>>,
422 completion_provider: Option<Box<dyn CompletionProvider>>,
423 collaboration_hub: Option<Box<dyn CollaborationHub>>,
424 blink_manager: Model<BlinkManager>,
425 show_cursor_names: bool,
426 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
427 pub show_local_selections: bool,
428 mode: EditorMode,
429 show_breadcrumbs: bool,
430 show_gutter: bool,
431 show_wrap_guides: Option<bool>,
432 placeholder_text: Option<Arc<str>>,
433 highlight_order: usize,
434 highlighted_rows: HashMap<TypeId, Vec<(usize, Range<Anchor>, Hsla)>>,
435 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
436 scrollbar_marker_state: ScrollbarMarkerState,
437 nav_history: Option<ItemNavHistory>,
438 context_menu: RwLock<Option<ContextMenu>>,
439 mouse_context_menu: Option<MouseContextMenu>,
440 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
441 find_all_references_task_sources: Vec<Anchor>,
442 next_completion_id: CompletionId,
443 completion_documentation_pre_resolve_debounce: DebouncedDelay,
444 available_code_actions: Option<(Model<Buffer>, Arc<[CodeAction]>)>,
445 code_actions_task: Option<Task<()>>,
446 document_highlights_task: Option<Task<()>>,
447 pending_rename: Option<RenameState>,
448 searchable: bool,
449 cursor_shape: CursorShape,
450 collapse_matches: bool,
451 autoindent_mode: Option<AutoindentMode>,
452 workspace: Option<(WeakView<Workspace>, WorkspaceId)>,
453 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
454 input_enabled: bool,
455 use_modal_editing: bool,
456 read_only: bool,
457 leader_peer_id: Option<PeerId>,
458 remote_id: Option<ViewId>,
459 hover_state: HoverState,
460 gutter_hovered: bool,
461 hovered_link_state: Option<HoveredLinkState>,
462 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
463 active_inline_completion: Option<Inlay>,
464 show_inline_completions: bool,
465 inlay_hint_cache: InlayHintCache,
466 expanded_hunks: ExpandedHunks,
467 next_inlay_id: usize,
468 _subscriptions: Vec<Subscription>,
469 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
470 gutter_dimensions: GutterDimensions,
471 pub vim_replace_map: HashMap<Range<usize>, String>,
472 style: Option<EditorStyle>,
473 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
474 use_autoclose: bool,
475 auto_replace_emoji_shortcode: bool,
476 show_git_blame_gutter: bool,
477 show_git_blame_inline: bool,
478 show_git_blame_inline_delay_task: Option<Task<()>>,
479 git_blame_inline_enabled: bool,
480 blame: Option<Model<GitBlame>>,
481 blame_subscription: Option<Subscription>,
482 custom_context_menu: Option<
483 Box<
484 dyn 'static
485 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
486 >,
487 >,
488 last_bounds: Option<Bounds<Pixels>>,
489 expect_bounds_change: Option<Bounds<Pixels>>,
490}
491
492#[derive(Clone)]
493pub struct EditorSnapshot {
494 pub mode: EditorMode,
495 show_gutter: bool,
496 render_git_blame_gutter: bool,
497 pub display_snapshot: DisplaySnapshot,
498 pub placeholder_text: Option<Arc<str>>,
499 is_focused: bool,
500 scroll_anchor: ScrollAnchor,
501 ongoing_scroll: OngoingScroll,
502}
503
504const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
505
506#[derive(Debug, Clone, Copy)]
507pub struct GutterDimensions {
508 pub left_padding: Pixels,
509 pub right_padding: Pixels,
510 pub width: Pixels,
511 pub margin: Pixels,
512 pub git_blame_entries_width: Option<Pixels>,
513}
514
515impl Default for GutterDimensions {
516 fn default() -> Self {
517 Self {
518 left_padding: Pixels::ZERO,
519 right_padding: Pixels::ZERO,
520 width: Pixels::ZERO,
521 margin: Pixels::ZERO,
522 git_blame_entries_width: None,
523 }
524 }
525}
526
527#[derive(Debug)]
528pub struct RemoteSelection {
529 pub replica_id: ReplicaId,
530 pub selection: Selection<Anchor>,
531 pub cursor_shape: CursorShape,
532 pub peer_id: PeerId,
533 pub line_mode: bool,
534 pub participant_index: Option<ParticipantIndex>,
535 pub user_name: Option<SharedString>,
536}
537
538#[derive(Clone, Debug)]
539struct SelectionHistoryEntry {
540 selections: Arc<[Selection<Anchor>]>,
541 select_next_state: Option<SelectNextState>,
542 select_prev_state: Option<SelectNextState>,
543 add_selections_state: Option<AddSelectionsState>,
544}
545
546enum SelectionHistoryMode {
547 Normal,
548 Undoing,
549 Redoing,
550}
551
552#[derive(Clone, PartialEq, Eq, Hash)]
553struct HoveredCursor {
554 replica_id: u16,
555 selection_id: usize,
556}
557
558impl Default for SelectionHistoryMode {
559 fn default() -> Self {
560 Self::Normal
561 }
562}
563
564#[derive(Default)]
565struct SelectionHistory {
566 #[allow(clippy::type_complexity)]
567 selections_by_transaction:
568 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
569 mode: SelectionHistoryMode,
570 undo_stack: VecDeque<SelectionHistoryEntry>,
571 redo_stack: VecDeque<SelectionHistoryEntry>,
572}
573
574impl SelectionHistory {
575 fn insert_transaction(
576 &mut self,
577 transaction_id: TransactionId,
578 selections: Arc<[Selection<Anchor>]>,
579 ) {
580 self.selections_by_transaction
581 .insert(transaction_id, (selections, None));
582 }
583
584 #[allow(clippy::type_complexity)]
585 fn transaction(
586 &self,
587 transaction_id: TransactionId,
588 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
589 self.selections_by_transaction.get(&transaction_id)
590 }
591
592 #[allow(clippy::type_complexity)]
593 fn transaction_mut(
594 &mut self,
595 transaction_id: TransactionId,
596 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
597 self.selections_by_transaction.get_mut(&transaction_id)
598 }
599
600 fn push(&mut self, entry: SelectionHistoryEntry) {
601 if !entry.selections.is_empty() {
602 match self.mode {
603 SelectionHistoryMode::Normal => {
604 self.push_undo(entry);
605 self.redo_stack.clear();
606 }
607 SelectionHistoryMode::Undoing => self.push_redo(entry),
608 SelectionHistoryMode::Redoing => self.push_undo(entry),
609 }
610 }
611 }
612
613 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
614 if self
615 .undo_stack
616 .back()
617 .map_or(true, |e| e.selections != entry.selections)
618 {
619 self.undo_stack.push_back(entry);
620 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
621 self.undo_stack.pop_front();
622 }
623 }
624 }
625
626 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
627 if self
628 .redo_stack
629 .back()
630 .map_or(true, |e| e.selections != entry.selections)
631 {
632 self.redo_stack.push_back(entry);
633 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
634 self.redo_stack.pop_front();
635 }
636 }
637 }
638}
639
640#[derive(Clone, Debug)]
641struct AddSelectionsState {
642 above: bool,
643 stack: Vec<usize>,
644}
645
646#[derive(Clone)]
647struct SelectNextState {
648 query: AhoCorasick,
649 wordwise: bool,
650 done: bool,
651}
652
653impl std::fmt::Debug for SelectNextState {
654 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
655 f.debug_struct(std::any::type_name::<Self>())
656 .field("wordwise", &self.wordwise)
657 .field("done", &self.done)
658 .finish()
659 }
660}
661
662#[derive(Debug)]
663struct AutocloseRegion {
664 selection_id: usize,
665 range: Range<Anchor>,
666 pair: BracketPair,
667}
668
669#[derive(Debug)]
670struct SnippetState {
671 ranges: Vec<Vec<Range<Anchor>>>,
672 active_index: usize,
673}
674
675#[doc(hidden)]
676pub struct RenameState {
677 pub range: Range<Anchor>,
678 pub old_name: Arc<str>,
679 pub editor: View<Editor>,
680 block_id: BlockId,
681}
682
683struct InvalidationStack<T>(Vec<T>);
684
685struct RegisteredInlineCompletionProvider {
686 provider: Arc<dyn InlineCompletionProviderHandle>,
687 _subscription: Subscription,
688}
689
690enum ContextMenu {
691 Completions(CompletionsMenu),
692 CodeActions(CodeActionsMenu),
693}
694
695impl ContextMenu {
696 fn select_first(
697 &mut self,
698 project: Option<&Model<Project>>,
699 cx: &mut ViewContext<Editor>,
700 ) -> bool {
701 if self.visible() {
702 match self {
703 ContextMenu::Completions(menu) => menu.select_first(project, cx),
704 ContextMenu::CodeActions(menu) => menu.select_first(cx),
705 }
706 true
707 } else {
708 false
709 }
710 }
711
712 fn select_prev(
713 &mut self,
714 project: Option<&Model<Project>>,
715 cx: &mut ViewContext<Editor>,
716 ) -> bool {
717 if self.visible() {
718 match self {
719 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
720 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
721 }
722 true
723 } else {
724 false
725 }
726 }
727
728 fn select_next(
729 &mut self,
730 project: Option<&Model<Project>>,
731 cx: &mut ViewContext<Editor>,
732 ) -> bool {
733 if self.visible() {
734 match self {
735 ContextMenu::Completions(menu) => menu.select_next(project, cx),
736 ContextMenu::CodeActions(menu) => menu.select_next(cx),
737 }
738 true
739 } else {
740 false
741 }
742 }
743
744 fn select_last(
745 &mut self,
746 project: Option<&Model<Project>>,
747 cx: &mut ViewContext<Editor>,
748 ) -> bool {
749 if self.visible() {
750 match self {
751 ContextMenu::Completions(menu) => menu.select_last(project, cx),
752 ContextMenu::CodeActions(menu) => menu.select_last(cx),
753 }
754 true
755 } else {
756 false
757 }
758 }
759
760 fn visible(&self) -> bool {
761 match self {
762 ContextMenu::Completions(menu) => menu.visible(),
763 ContextMenu::CodeActions(menu) => menu.visible(),
764 }
765 }
766
767 fn render(
768 &self,
769 cursor_position: DisplayPoint,
770 style: &EditorStyle,
771 max_height: Pixels,
772 workspace: Option<WeakView<Workspace>>,
773 cx: &mut ViewContext<Editor>,
774 ) -> (ContextMenuOrigin, AnyElement) {
775 match self {
776 ContextMenu::Completions(menu) => (
777 ContextMenuOrigin::EditorPoint(cursor_position),
778 menu.render(style, max_height, workspace, cx),
779 ),
780 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
781 }
782 }
783}
784
785enum ContextMenuOrigin {
786 EditorPoint(DisplayPoint),
787 GutterIndicator(u32),
788}
789
790#[derive(Clone)]
791struct CompletionsMenu {
792 id: CompletionId,
793 initial_position: Anchor,
794 buffer: Model<Buffer>,
795 completions: Arc<RwLock<Box<[Completion]>>>,
796 match_candidates: Arc<[StringMatchCandidate]>,
797 matches: Arc<[StringMatch]>,
798 selected_item: usize,
799 scroll_handle: UniformListScrollHandle,
800 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
801}
802
803impl CompletionsMenu {
804 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
805 self.selected_item = 0;
806 self.scroll_handle.scroll_to_item(self.selected_item);
807 self.attempt_resolve_selected_completion_documentation(project, cx);
808 cx.notify();
809 }
810
811 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
812 if self.selected_item > 0 {
813 self.selected_item -= 1;
814 } else {
815 self.selected_item = self.matches.len() - 1;
816 }
817 self.scroll_handle.scroll_to_item(self.selected_item);
818 self.attempt_resolve_selected_completion_documentation(project, cx);
819 cx.notify();
820 }
821
822 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
823 if self.selected_item + 1 < self.matches.len() {
824 self.selected_item += 1;
825 } else {
826 self.selected_item = 0;
827 }
828 self.scroll_handle.scroll_to_item(self.selected_item);
829 self.attempt_resolve_selected_completion_documentation(project, cx);
830 cx.notify();
831 }
832
833 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
834 self.selected_item = self.matches.len() - 1;
835 self.scroll_handle.scroll_to_item(self.selected_item);
836 self.attempt_resolve_selected_completion_documentation(project, cx);
837 cx.notify();
838 }
839
840 fn pre_resolve_completion_documentation(
841 buffer: Model<Buffer>,
842 completions: Arc<RwLock<Box<[Completion]>>>,
843 matches: Arc<[StringMatch]>,
844 editor: &Editor,
845 cx: &mut ViewContext<Editor>,
846 ) -> Task<()> {
847 let settings = EditorSettings::get_global(cx);
848 if !settings.show_completion_documentation {
849 return Task::ready(());
850 }
851
852 let Some(provider) = editor.completion_provider.as_ref() else {
853 return Task::ready(());
854 };
855
856 let resolve_task = provider.resolve_completions(
857 buffer,
858 matches.iter().map(|m| m.candidate_id).collect(),
859 completions.clone(),
860 cx,
861 );
862
863 return cx.spawn(move |this, mut cx| async move {
864 if let Some(true) = resolve_task.await.log_err() {
865 this.update(&mut cx, |_, cx| cx.notify()).ok();
866 }
867 });
868 }
869
870 fn attempt_resolve_selected_completion_documentation(
871 &mut self,
872 project: Option<&Model<Project>>,
873 cx: &mut ViewContext<Editor>,
874 ) {
875 let settings = EditorSettings::get_global(cx);
876 if !settings.show_completion_documentation {
877 return;
878 }
879
880 let completion_index = self.matches[self.selected_item].candidate_id;
881 let Some(project) = project else {
882 return;
883 };
884
885 let resolve_task = project.update(cx, |project, cx| {
886 project.resolve_completions(
887 self.buffer.clone(),
888 vec![completion_index],
889 self.completions.clone(),
890 cx,
891 )
892 });
893
894 let delay_ms =
895 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
896 let delay = Duration::from_millis(delay_ms);
897
898 self.selected_completion_documentation_resolve_debounce
899 .lock()
900 .fire_new(delay, cx, |_, cx| {
901 cx.spawn(move |this, mut cx| async move {
902 if let Some(true) = resolve_task.await.log_err() {
903 this.update(&mut cx, |_, cx| cx.notify()).ok();
904 }
905 })
906 });
907 }
908
909 fn visible(&self) -> bool {
910 !self.matches.is_empty()
911 }
912
913 fn render(
914 &self,
915 style: &EditorStyle,
916 max_height: Pixels,
917 workspace: Option<WeakView<Workspace>>,
918 cx: &mut ViewContext<Editor>,
919 ) -> AnyElement {
920 let settings = EditorSettings::get_global(cx);
921 let show_completion_documentation = settings.show_completion_documentation;
922
923 let widest_completion_ix = self
924 .matches
925 .iter()
926 .enumerate()
927 .max_by_key(|(_, mat)| {
928 let completions = self.completions.read();
929 let completion = &completions[mat.candidate_id];
930 let documentation = &completion.documentation;
931
932 let mut len = completion.label.text.chars().count();
933 if let Some(Documentation::SingleLine(text)) = documentation {
934 if show_completion_documentation {
935 len += text.chars().count();
936 }
937 }
938
939 len
940 })
941 .map(|(ix, _)| ix);
942
943 let completions = self.completions.clone();
944 let matches = self.matches.clone();
945 let selected_item = self.selected_item;
946 let style = style.clone();
947
948 let multiline_docs = if show_completion_documentation {
949 let mat = &self.matches[selected_item];
950 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
951 Some(Documentation::MultiLinePlainText(text)) => {
952 Some(div().child(SharedString::from(text.clone())))
953 }
954 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
955 Some(div().child(render_parsed_markdown(
956 "completions_markdown",
957 parsed,
958 &style,
959 workspace,
960 cx,
961 )))
962 }
963 _ => None,
964 };
965 multiline_docs.map(|div| {
966 div.id("multiline_docs")
967 .max_h(max_height)
968 .flex_1()
969 .px_1p5()
970 .py_1()
971 .min_w(px(260.))
972 .max_w(px(640.))
973 .w(px(500.))
974 .overflow_y_scroll()
975 .occlude()
976 })
977 } else {
978 None
979 };
980
981 let list = uniform_list(
982 cx.view().clone(),
983 "completions",
984 matches.len(),
985 move |_editor, range, cx| {
986 let start_ix = range.start;
987 let completions_guard = completions.read();
988
989 matches[range]
990 .iter()
991 .enumerate()
992 .map(|(ix, mat)| {
993 let item_ix = start_ix + ix;
994 let candidate_id = mat.candidate_id;
995 let completion = &completions_guard[candidate_id];
996
997 let documentation = if show_completion_documentation {
998 &completion.documentation
999 } else {
1000 &None
1001 };
1002
1003 let highlights = gpui::combine_highlights(
1004 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1005 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1006 |(range, mut highlight)| {
1007 // Ignore font weight for syntax highlighting, as we'll use it
1008 // for fuzzy matches.
1009 highlight.font_weight = None;
1010
1011 if completion.lsp_completion.deprecated.unwrap_or(false) {
1012 highlight.strikethrough = Some(StrikethroughStyle {
1013 thickness: 1.0.into(),
1014 ..Default::default()
1015 });
1016 highlight.color = Some(cx.theme().colors().text_muted);
1017 }
1018
1019 (range, highlight)
1020 },
1021 ),
1022 );
1023 let completion_label = StyledText::new(completion.label.text.clone())
1024 .with_highlights(&style.text, highlights);
1025 let documentation_label =
1026 if let Some(Documentation::SingleLine(text)) = documentation {
1027 if text.trim().is_empty() {
1028 None
1029 } else {
1030 Some(
1031 h_flex().ml_4().child(
1032 Label::new(text.clone())
1033 .size(LabelSize::Small)
1034 .color(Color::Muted),
1035 ),
1036 )
1037 }
1038 } else {
1039 None
1040 };
1041
1042 div().min_w(px(220.)).max_w(px(540.)).child(
1043 ListItem::new(mat.candidate_id)
1044 .inset(true)
1045 .selected(item_ix == selected_item)
1046 .on_click(cx.listener(move |editor, _event, cx| {
1047 cx.stop_propagation();
1048 if let Some(task) = editor.confirm_completion(
1049 &ConfirmCompletion {
1050 item_ix: Some(item_ix),
1051 },
1052 cx,
1053 ) {
1054 task.detach_and_log_err(cx)
1055 }
1056 }))
1057 .child(h_flex().overflow_hidden().child(completion_label))
1058 .end_slot::<Div>(documentation_label),
1059 )
1060 })
1061 .collect()
1062 },
1063 )
1064 .occlude()
1065 .max_h(max_height)
1066 .track_scroll(self.scroll_handle.clone())
1067 .with_width_from_item(widest_completion_ix);
1068
1069 Popover::new()
1070 .child(list)
1071 .when_some(multiline_docs, |popover, multiline_docs| {
1072 popover.aside(multiline_docs)
1073 })
1074 .into_any_element()
1075 }
1076
1077 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1078 let mut matches = if let Some(query) = query {
1079 fuzzy::match_strings(
1080 &self.match_candidates,
1081 query,
1082 query.chars().any(|c| c.is_uppercase()),
1083 100,
1084 &Default::default(),
1085 executor,
1086 )
1087 .await
1088 } else {
1089 self.match_candidates
1090 .iter()
1091 .enumerate()
1092 .map(|(candidate_id, candidate)| StringMatch {
1093 candidate_id,
1094 score: Default::default(),
1095 positions: Default::default(),
1096 string: candidate.string.clone(),
1097 })
1098 .collect()
1099 };
1100
1101 // Remove all candidates where the query's start does not match the start of any word in the candidate
1102 if let Some(query) = query {
1103 if let Some(query_start) = query.chars().next() {
1104 matches.retain(|string_match| {
1105 split_words(&string_match.string).any(|word| {
1106 // Check that the first codepoint of the word as lowercase matches the first
1107 // codepoint of the query as lowercase
1108 word.chars()
1109 .flat_map(|codepoint| codepoint.to_lowercase())
1110 .zip(query_start.to_lowercase())
1111 .all(|(word_cp, query_cp)| word_cp == query_cp)
1112 })
1113 });
1114 }
1115 }
1116
1117 let completions = self.completions.read();
1118 matches.sort_unstable_by_key(|mat| {
1119 // We do want to strike a balance here between what the language server tells us
1120 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1121 // `Creat` and there is a local variable called `CreateComponent`).
1122 // So what we do is: we bucket all matches into two buckets
1123 // - Strong matches
1124 // - Weak matches
1125 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1126 // and the Weak matches are the rest.
1127 //
1128 // For the strong matches, we sort by the language-servers score first and for the weak
1129 // matches, we prefer our fuzzy finder first.
1130 //
1131 // The thinking behind that: it's useless to take the sort_text the language-server gives
1132 // us into account when it's obviously a bad match.
1133
1134 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1135 enum MatchScore<'a> {
1136 Strong {
1137 sort_text: Option<&'a str>,
1138 score: Reverse<OrderedFloat<f64>>,
1139 sort_key: (usize, &'a str),
1140 },
1141 Weak {
1142 score: Reverse<OrderedFloat<f64>>,
1143 sort_text: Option<&'a str>,
1144 sort_key: (usize, &'a str),
1145 },
1146 }
1147
1148 let completion = &completions[mat.candidate_id];
1149 let sort_key = completion.sort_key();
1150 let sort_text = completion.lsp_completion.sort_text.as_deref();
1151 let score = Reverse(OrderedFloat(mat.score));
1152
1153 if mat.score >= 0.2 {
1154 MatchScore::Strong {
1155 sort_text,
1156 score,
1157 sort_key,
1158 }
1159 } else {
1160 MatchScore::Weak {
1161 score,
1162 sort_text,
1163 sort_key,
1164 }
1165 }
1166 });
1167
1168 for mat in &mut matches {
1169 let completion = &completions[mat.candidate_id];
1170 mat.string = completion.label.text.clone();
1171 for position in &mut mat.positions {
1172 *position += completion.label.filter_range.start;
1173 }
1174 }
1175 drop(completions);
1176
1177 self.matches = matches.into();
1178 self.selected_item = 0;
1179 }
1180}
1181
1182#[derive(Clone)]
1183struct CodeActionsMenu {
1184 actions: Arc<[CodeAction]>,
1185 buffer: Model<Buffer>,
1186 selected_item: usize,
1187 scroll_handle: UniformListScrollHandle,
1188 deployed_from_indicator: bool,
1189}
1190
1191impl CodeActionsMenu {
1192 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1193 self.selected_item = 0;
1194 self.scroll_handle.scroll_to_item(self.selected_item);
1195 cx.notify()
1196 }
1197
1198 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1199 if self.selected_item > 0 {
1200 self.selected_item -= 1;
1201 } else {
1202 self.selected_item = self.actions.len() - 1;
1203 }
1204 self.scroll_handle.scroll_to_item(self.selected_item);
1205 cx.notify();
1206 }
1207
1208 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1209 if self.selected_item + 1 < self.actions.len() {
1210 self.selected_item += 1;
1211 } else {
1212 self.selected_item = 0;
1213 }
1214 self.scroll_handle.scroll_to_item(self.selected_item);
1215 cx.notify();
1216 }
1217
1218 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1219 self.selected_item = self.actions.len() - 1;
1220 self.scroll_handle.scroll_to_item(self.selected_item);
1221 cx.notify()
1222 }
1223
1224 fn visible(&self) -> bool {
1225 !self.actions.is_empty()
1226 }
1227
1228 fn render(
1229 &self,
1230 cursor_position: DisplayPoint,
1231 _style: &EditorStyle,
1232 max_height: Pixels,
1233 cx: &mut ViewContext<Editor>,
1234 ) -> (ContextMenuOrigin, AnyElement) {
1235 let actions = self.actions.clone();
1236 let selected_item = self.selected_item;
1237
1238 let element = uniform_list(
1239 cx.view().clone(),
1240 "code_actions_menu",
1241 self.actions.len(),
1242 move |_this, range, cx| {
1243 actions[range.clone()]
1244 .iter()
1245 .enumerate()
1246 .map(|(ix, action)| {
1247 let item_ix = range.start + ix;
1248 let selected = selected_item == item_ix;
1249 let colors = cx.theme().colors();
1250 div()
1251 .px_2()
1252 .text_color(colors.text)
1253 .when(selected, |style| {
1254 style
1255 .bg(colors.element_active)
1256 .text_color(colors.text_accent)
1257 })
1258 .hover(|style| {
1259 style
1260 .bg(colors.element_hover)
1261 .text_color(colors.text_accent)
1262 })
1263 .on_mouse_down(
1264 MouseButton::Left,
1265 cx.listener(move |editor, _, cx| {
1266 cx.stop_propagation();
1267 if let Some(task) = editor.confirm_code_action(
1268 &ConfirmCodeAction {
1269 item_ix: Some(item_ix),
1270 },
1271 cx,
1272 ) {
1273 task.detach_and_log_err(cx)
1274 }
1275 }),
1276 )
1277 .whitespace_nowrap()
1278 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1279 .child(SharedString::from(action.lsp_action.title.clone()))
1280 })
1281 .collect()
1282 },
1283 )
1284 .elevation_1(cx)
1285 .px_2()
1286 .py_1()
1287 .max_h(max_height)
1288 .occlude()
1289 .track_scroll(self.scroll_handle.clone())
1290 .with_width_from_item(
1291 self.actions
1292 .iter()
1293 .enumerate()
1294 .max_by_key(|(_, action)| action.lsp_action.title.chars().count())
1295 .map(|(ix, _)| ix),
1296 )
1297 .into_any_element();
1298
1299 let cursor_position = if self.deployed_from_indicator {
1300 ContextMenuOrigin::GutterIndicator(cursor_position.row())
1301 } else {
1302 ContextMenuOrigin::EditorPoint(cursor_position)
1303 };
1304 (cursor_position, element)
1305 }
1306}
1307
1308#[derive(Debug)]
1309struct ActiveDiagnosticGroup {
1310 primary_range: Range<Anchor>,
1311 primary_message: String,
1312 blocks: HashMap<BlockId, Diagnostic>,
1313 is_valid: bool,
1314}
1315
1316#[derive(Serialize, Deserialize)]
1317pub struct ClipboardSelection {
1318 pub len: usize,
1319 pub is_entire_line: bool,
1320 pub first_line_indent: u32,
1321}
1322
1323#[derive(Debug)]
1324pub(crate) struct NavigationData {
1325 cursor_anchor: Anchor,
1326 cursor_position: Point,
1327 scroll_anchor: ScrollAnchor,
1328 scroll_top_row: u32,
1329}
1330
1331enum GotoDefinitionKind {
1332 Symbol,
1333 Type,
1334 Implementation,
1335}
1336
1337#[derive(Debug, Clone)]
1338enum InlayHintRefreshReason {
1339 Toggle(bool),
1340 SettingsChange(InlayHintSettings),
1341 NewLinesShown,
1342 BufferEdited(HashSet<Arc<Language>>),
1343 RefreshRequested,
1344 ExcerptsRemoved(Vec<ExcerptId>),
1345}
1346
1347impl InlayHintRefreshReason {
1348 fn description(&self) -> &'static str {
1349 match self {
1350 Self::Toggle(_) => "toggle",
1351 Self::SettingsChange(_) => "settings change",
1352 Self::NewLinesShown => "new lines shown",
1353 Self::BufferEdited(_) => "buffer edited",
1354 Self::RefreshRequested => "refresh requested",
1355 Self::ExcerptsRemoved(_) => "excerpts removed",
1356 }
1357 }
1358}
1359
1360impl Editor {
1361 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1362 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1363 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1364 Self::new(EditorMode::SingleLine, buffer, None, cx)
1365 }
1366
1367 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1368 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1369 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1370 Self::new(EditorMode::Full, buffer, None, cx)
1371 }
1372
1373 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1374 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1375 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1376 Self::new(EditorMode::AutoHeight { max_lines }, buffer, None, cx)
1377 }
1378
1379 pub fn for_buffer(
1380 buffer: Model<Buffer>,
1381 project: Option<Model<Project>>,
1382 cx: &mut ViewContext<Self>,
1383 ) -> Self {
1384 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1385 Self::new(EditorMode::Full, buffer, project, cx)
1386 }
1387
1388 pub fn for_multibuffer(
1389 buffer: Model<MultiBuffer>,
1390 project: Option<Model<Project>>,
1391 cx: &mut ViewContext<Self>,
1392 ) -> Self {
1393 Self::new(EditorMode::Full, buffer, project, cx)
1394 }
1395
1396 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1397 let mut clone = Self::new(self.mode, self.buffer.clone(), self.project.clone(), cx);
1398 self.display_map.update(cx, |display_map, cx| {
1399 let snapshot = display_map.snapshot(cx);
1400 clone.display_map.update(cx, |display_map, cx| {
1401 display_map.set_state(&snapshot, cx);
1402 });
1403 });
1404 clone.selections.clone_state(&self.selections);
1405 clone.scroll_manager.clone_state(&self.scroll_manager);
1406 clone.searchable = self.searchable;
1407 clone
1408 }
1409
1410 fn new(
1411 mode: EditorMode,
1412 buffer: Model<MultiBuffer>,
1413 project: Option<Model<Project>>,
1414 cx: &mut ViewContext<Self>,
1415 ) -> Self {
1416 let style = cx.text_style();
1417 let font_size = style.font_size.to_pixels(cx.rem_size());
1418 let display_map = cx.new_model(|cx| {
1419 DisplayMap::new(buffer.clone(), style.font(), font_size, None, 2, 1, cx)
1420 });
1421
1422 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1423
1424 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1425
1426 let soft_wrap_mode_override =
1427 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1428
1429 let mut project_subscriptions = Vec::new();
1430 if mode == EditorMode::Full {
1431 if let Some(project) = project.as_ref() {
1432 if buffer.read(cx).is_singleton() {
1433 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1434 cx.emit(EditorEvent::TitleChanged);
1435 }));
1436 }
1437 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1438 if let project::Event::RefreshInlayHints = event {
1439 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1440 };
1441 }));
1442 }
1443 }
1444
1445 let inlay_hint_settings = inlay_hint_settings(
1446 selections.newest_anchor().head(),
1447 &buffer.read(cx).snapshot(cx),
1448 cx,
1449 );
1450
1451 let focus_handle = cx.focus_handle();
1452 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1453 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1454
1455 let mut this = Self {
1456 focus_handle,
1457 buffer: buffer.clone(),
1458 display_map: display_map.clone(),
1459 selections,
1460 scroll_manager: ScrollManager::new(cx),
1461 columnar_selection_tail: None,
1462 add_selections_state: None,
1463 select_next_state: None,
1464 select_prev_state: None,
1465 selection_history: Default::default(),
1466 autoclose_regions: Default::default(),
1467 snippet_stack: Default::default(),
1468 select_larger_syntax_node_stack: Vec::new(),
1469 ime_transaction: Default::default(),
1470 active_diagnostics: None,
1471 soft_wrap_mode_override,
1472 completion_provider: project.clone().map(|project| Box::new(project) as _),
1473 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1474 project,
1475 blink_manager: blink_manager.clone(),
1476 show_local_selections: true,
1477 mode,
1478 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1479 show_gutter: mode == EditorMode::Full,
1480 show_wrap_guides: None,
1481 placeholder_text: None,
1482 highlight_order: 0,
1483 highlighted_rows: HashMap::default(),
1484 background_highlights: Default::default(),
1485 scrollbar_marker_state: ScrollbarMarkerState::default(),
1486 nav_history: None,
1487 context_menu: RwLock::new(None),
1488 mouse_context_menu: None,
1489 completion_tasks: Default::default(),
1490 find_all_references_task_sources: Vec::new(),
1491 next_completion_id: 0,
1492 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1493 next_inlay_id: 0,
1494 available_code_actions: Default::default(),
1495 code_actions_task: Default::default(),
1496 document_highlights_task: Default::default(),
1497 pending_rename: Default::default(),
1498 searchable: true,
1499 cursor_shape: Default::default(),
1500 autoindent_mode: Some(AutoindentMode::EachLine),
1501 collapse_matches: false,
1502 workspace: None,
1503 keymap_context_layers: Default::default(),
1504 input_enabled: true,
1505 use_modal_editing: mode == EditorMode::Full,
1506 read_only: false,
1507 use_autoclose: true,
1508 auto_replace_emoji_shortcode: false,
1509 leader_peer_id: None,
1510 remote_id: None,
1511 hover_state: Default::default(),
1512 hovered_link_state: Default::default(),
1513 inline_completion_provider: None,
1514 active_inline_completion: None,
1515 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1516 expanded_hunks: ExpandedHunks::default(),
1517 gutter_hovered: false,
1518 pixel_position_of_newest_cursor: None,
1519 last_bounds: None,
1520 expect_bounds_change: None,
1521 gutter_dimensions: GutterDimensions::default(),
1522 style: None,
1523 show_cursor_names: false,
1524 hovered_cursors: Default::default(),
1525 editor_actions: Default::default(),
1526 vim_replace_map: Default::default(),
1527 show_inline_completions: mode == EditorMode::Full,
1528 custom_context_menu: None,
1529 show_git_blame_gutter: false,
1530 show_git_blame_inline: false,
1531 show_git_blame_inline_delay_task: None,
1532 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1533 blame: None,
1534 blame_subscription: None,
1535 _subscriptions: vec![
1536 cx.observe(&buffer, Self::on_buffer_changed),
1537 cx.subscribe(&buffer, Self::on_buffer_event),
1538 cx.observe(&display_map, Self::on_display_map_changed),
1539 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1540 cx.observe_global::<SettingsStore>(Self::settings_changed),
1541 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1542 cx.observe_window_activation(|editor, cx| {
1543 let active = cx.is_window_active();
1544 editor.blink_manager.update(cx, |blink_manager, cx| {
1545 if active {
1546 blink_manager.enable(cx);
1547 } else {
1548 blink_manager.show_cursor(cx);
1549 blink_manager.disable(cx);
1550 }
1551 });
1552 }),
1553 ],
1554 };
1555
1556 this._subscriptions.extend(project_subscriptions);
1557
1558 this.end_selection(cx);
1559 this.scroll_manager.show_scrollbar(cx);
1560
1561 if mode == EditorMode::Full {
1562 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1563 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1564
1565 if this.git_blame_inline_enabled {
1566 this.git_blame_inline_enabled = true;
1567 this.start_git_blame_inline(false, cx);
1568 }
1569 }
1570
1571 this.report_editor_event("open", None, cx);
1572 this
1573 }
1574
1575 fn key_context(&self, cx: &AppContext) -> KeyContext {
1576 let mut key_context = KeyContext::new_with_defaults();
1577 key_context.add("Editor");
1578 let mode = match self.mode {
1579 EditorMode::SingleLine => "single_line",
1580 EditorMode::AutoHeight { .. } => "auto_height",
1581 EditorMode::Full => "full",
1582 };
1583 key_context.set("mode", mode);
1584 if self.pending_rename.is_some() {
1585 key_context.add("renaming");
1586 }
1587 if self.context_menu_visible() {
1588 match self.context_menu.read().as_ref() {
1589 Some(ContextMenu::Completions(_)) => {
1590 key_context.add("menu");
1591 key_context.add("showing_completions")
1592 }
1593 Some(ContextMenu::CodeActions(_)) => {
1594 key_context.add("menu");
1595 key_context.add("showing_code_actions")
1596 }
1597 None => {}
1598 }
1599 }
1600
1601 for layer in self.keymap_context_layers.values() {
1602 key_context.extend(layer);
1603 }
1604
1605 if let Some(extension) = self
1606 .buffer
1607 .read(cx)
1608 .as_singleton()
1609 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1610 {
1611 key_context.set("extension", extension.to_string());
1612 }
1613
1614 if self.has_active_inline_completion(cx) {
1615 key_context.add("copilot_suggestion");
1616 key_context.add("inline_completion");
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 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1629
1630 cx.spawn(|workspace, mut cx| async move {
1631 let buffer = create.await?;
1632 workspace.update(&mut cx, |workspace, cx| {
1633 workspace.add_item_to_active_pane(
1634 Box::new(
1635 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1636 ),
1637 None,
1638 cx,
1639 )
1640 })
1641 })
1642 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1643 ErrorCode::RemoteUpgradeRequired => Some(format!(
1644 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1645 e.error_tag("required").unwrap_or("the latest version")
1646 )),
1647 _ => None,
1648 });
1649 }
1650
1651 pub fn new_file_in_direction(
1652 workspace: &mut Workspace,
1653 action: &workspace::NewFileInDirection,
1654 cx: &mut ViewContext<Workspace>,
1655 ) {
1656 let project = workspace.project().clone();
1657 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1658 let direction = action.0;
1659
1660 cx.spawn(|workspace, mut cx| async move {
1661 let buffer = create.await?;
1662 workspace.update(&mut cx, move |workspace, cx| {
1663 workspace.split_item(
1664 direction,
1665 Box::new(
1666 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1667 ),
1668 cx,
1669 )
1670 })?;
1671 anyhow::Ok(())
1672 })
1673 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1674 ErrorCode::RemoteUpgradeRequired => Some(format!(
1675 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1676 e.error_tag("required").unwrap_or("the latest version")
1677 )),
1678 _ => None,
1679 });
1680 }
1681
1682 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1683 self.buffer.read(cx).replica_id()
1684 }
1685
1686 pub fn leader_peer_id(&self) -> Option<PeerId> {
1687 self.leader_peer_id
1688 }
1689
1690 pub fn buffer(&self) -> &Model<MultiBuffer> {
1691 &self.buffer
1692 }
1693
1694 pub fn workspace(&self) -> Option<View<Workspace>> {
1695 self.workspace.as_ref()?.0.upgrade()
1696 }
1697
1698 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1699 self.buffer().read(cx).title(cx)
1700 }
1701
1702 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1703 EditorSnapshot {
1704 mode: self.mode,
1705 show_gutter: self.show_gutter,
1706 render_git_blame_gutter: self.render_git_blame_gutter(cx),
1707 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1708 scroll_anchor: self.scroll_manager.anchor(),
1709 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1710 placeholder_text: self.placeholder_text.clone(),
1711 is_focused: self.focus_handle.is_focused(cx),
1712 }
1713 }
1714
1715 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1716 self.buffer.read(cx).language_at(point, cx)
1717 }
1718
1719 pub fn file_at<T: ToOffset>(
1720 &self,
1721 point: T,
1722 cx: &AppContext,
1723 ) -> Option<Arc<dyn language::File>> {
1724 self.buffer.read(cx).read(cx).file_at(point).cloned()
1725 }
1726
1727 pub fn active_excerpt(
1728 &self,
1729 cx: &AppContext,
1730 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1731 self.buffer
1732 .read(cx)
1733 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1734 }
1735
1736 pub fn mode(&self) -> EditorMode {
1737 self.mode
1738 }
1739
1740 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1741 self.collaboration_hub.as_deref()
1742 }
1743
1744 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1745 self.collaboration_hub = Some(hub);
1746 }
1747
1748 pub fn set_custom_context_menu(
1749 &mut self,
1750 f: impl 'static
1751 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1752 ) {
1753 self.custom_context_menu = Some(Box::new(f))
1754 }
1755
1756 pub fn set_completion_provider(&mut self, hub: Box<dyn CompletionProvider>) {
1757 self.completion_provider = Some(hub);
1758 }
1759
1760 pub fn set_inline_completion_provider(
1761 &mut self,
1762 provider: Model<impl InlineCompletionProvider>,
1763 cx: &mut ViewContext<Self>,
1764 ) {
1765 self.inline_completion_provider = Some(RegisteredInlineCompletionProvider {
1766 _subscription: cx.observe(&provider, |this, _, cx| {
1767 if this.focus_handle.is_focused(cx) {
1768 this.update_visible_inline_completion(cx);
1769 }
1770 }),
1771 provider: Arc::new(provider),
1772 });
1773 self.refresh_inline_completion(false, cx);
1774 }
1775
1776 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
1777 self.placeholder_text.as_deref()
1778 }
1779
1780 pub fn set_placeholder_text(
1781 &mut self,
1782 placeholder_text: impl Into<Arc<str>>,
1783 cx: &mut ViewContext<Self>,
1784 ) {
1785 let placeholder_text = Some(placeholder_text.into());
1786 if self.placeholder_text != placeholder_text {
1787 self.placeholder_text = placeholder_text;
1788 cx.notify();
1789 }
1790 }
1791
1792 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1793 self.cursor_shape = cursor_shape;
1794 cx.notify();
1795 }
1796
1797 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1798 self.collapse_matches = collapse_matches;
1799 }
1800
1801 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1802 if self.collapse_matches {
1803 return range.start..range.start;
1804 }
1805 range.clone()
1806 }
1807
1808 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1809 if self.display_map.read(cx).clip_at_line_ends != clip {
1810 self.display_map
1811 .update(cx, |map, _| map.clip_at_line_ends = clip);
1812 }
1813 }
1814
1815 pub fn set_keymap_context_layer<Tag: 'static>(
1816 &mut self,
1817 context: KeyContext,
1818 cx: &mut ViewContext<Self>,
1819 ) {
1820 self.keymap_context_layers
1821 .insert(TypeId::of::<Tag>(), context);
1822 cx.notify();
1823 }
1824
1825 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
1826 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
1827 cx.notify();
1828 }
1829
1830 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1831 self.input_enabled = input_enabled;
1832 }
1833
1834 pub fn set_autoindent(&mut self, autoindent: bool) {
1835 if autoindent {
1836 self.autoindent_mode = Some(AutoindentMode::EachLine);
1837 } else {
1838 self.autoindent_mode = None;
1839 }
1840 }
1841
1842 pub fn read_only(&self, cx: &AppContext) -> bool {
1843 self.read_only || self.buffer.read(cx).read_only()
1844 }
1845
1846 pub fn set_read_only(&mut self, read_only: bool) {
1847 self.read_only = read_only;
1848 }
1849
1850 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1851 self.use_autoclose = autoclose;
1852 }
1853
1854 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1855 self.auto_replace_emoji_shortcode = auto_replace;
1856 }
1857
1858 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
1859 self.show_inline_completions = show_inline_completions;
1860 }
1861
1862 pub fn set_use_modal_editing(&mut self, to: bool) {
1863 self.use_modal_editing = to;
1864 }
1865
1866 pub fn use_modal_editing(&self) -> bool {
1867 self.use_modal_editing
1868 }
1869
1870 fn selections_did_change(
1871 &mut self,
1872 local: bool,
1873 old_cursor_position: &Anchor,
1874 cx: &mut ViewContext<Self>,
1875 ) {
1876 // Copy selections to primary selection buffer
1877 #[cfg(target_os = "linux")]
1878 if local {
1879 let selections = self.selections.all::<usize>(cx);
1880 let buffer_handle = self.buffer.read(cx).read(cx);
1881
1882 let mut text = String::new();
1883 for (index, selection) in selections.iter().enumerate() {
1884 let text_for_selection = buffer_handle
1885 .text_for_range(selection.start..selection.end)
1886 .collect::<String>();
1887
1888 text.push_str(&text_for_selection);
1889 if index != selections.len() - 1 {
1890 text.push('\n');
1891 }
1892 }
1893
1894 if !text.is_empty() {
1895 cx.write_to_primary(ClipboardItem::new(text));
1896 }
1897 }
1898
1899 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1900 self.buffer.update(cx, |buffer, cx| {
1901 buffer.set_active_selections(
1902 &self.selections.disjoint_anchors(),
1903 self.selections.line_mode,
1904 self.cursor_shape,
1905 cx,
1906 )
1907 });
1908 }
1909
1910 let display_map = self
1911 .display_map
1912 .update(cx, |display_map, cx| display_map.snapshot(cx));
1913 let buffer = &display_map.buffer_snapshot;
1914 self.add_selections_state = None;
1915 self.select_next_state = None;
1916 self.select_prev_state = None;
1917 self.select_larger_syntax_node_stack.clear();
1918 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1919 self.snippet_stack
1920 .invalidate(&self.selections.disjoint_anchors(), buffer);
1921 self.take_rename(false, cx);
1922
1923 let new_cursor_position = self.selections.newest_anchor().head();
1924
1925 self.push_to_nav_history(
1926 *old_cursor_position,
1927 Some(new_cursor_position.to_point(buffer)),
1928 cx,
1929 );
1930
1931 if local {
1932 let new_cursor_position = self.selections.newest_anchor().head();
1933 let mut context_menu = self.context_menu.write();
1934 let completion_menu = match context_menu.as_ref() {
1935 Some(ContextMenu::Completions(menu)) => Some(menu),
1936
1937 _ => {
1938 *context_menu = None;
1939 None
1940 }
1941 };
1942
1943 if let Some(completion_menu) = completion_menu {
1944 let cursor_position = new_cursor_position.to_offset(buffer);
1945 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
1946 if kind == Some(CharKind::Word)
1947 && word_range.to_inclusive().contains(&cursor_position)
1948 {
1949 let mut completion_menu = completion_menu.clone();
1950 drop(context_menu);
1951
1952 let query = Self::completion_query(buffer, cursor_position);
1953 cx.spawn(move |this, mut cx| async move {
1954 completion_menu
1955 .filter(query.as_deref(), cx.background_executor().clone())
1956 .await;
1957
1958 this.update(&mut cx, |this, cx| {
1959 let mut context_menu = this.context_menu.write();
1960 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
1961 return;
1962 };
1963
1964 if menu.id > completion_menu.id {
1965 return;
1966 }
1967
1968 *context_menu = Some(ContextMenu::Completions(completion_menu));
1969 drop(context_menu);
1970 cx.notify();
1971 })
1972 })
1973 .detach();
1974
1975 self.show_completions(&ShowCompletions, cx);
1976 } else {
1977 drop(context_menu);
1978 self.hide_context_menu(cx);
1979 }
1980 } else {
1981 drop(context_menu);
1982 }
1983
1984 hide_hover(self, cx);
1985
1986 if old_cursor_position.to_display_point(&display_map).row()
1987 != new_cursor_position.to_display_point(&display_map).row()
1988 {
1989 self.available_code_actions.take();
1990 }
1991 self.refresh_code_actions(cx);
1992 self.refresh_document_highlights(cx);
1993 refresh_matching_bracket_highlights(self, cx);
1994 self.discard_inline_completion(cx);
1995 if self.git_blame_inline_enabled {
1996 self.start_inline_blame_timer(cx);
1997 }
1998 }
1999
2000 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2001 cx.emit(EditorEvent::SelectionsChanged { local });
2002
2003 if self.selections.disjoint_anchors().len() == 1 {
2004 cx.emit(SearchEvent::ActiveMatchChanged)
2005 }
2006
2007 cx.notify();
2008 }
2009
2010 pub fn change_selections<R>(
2011 &mut self,
2012 autoscroll: Option<Autoscroll>,
2013 cx: &mut ViewContext<Self>,
2014 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2015 ) -> R {
2016 let old_cursor_position = self.selections.newest_anchor().head();
2017 self.push_to_selection_history();
2018
2019 let (changed, result) = self.selections.change_with(cx, change);
2020
2021 if changed {
2022 if let Some(autoscroll) = autoscroll {
2023 self.request_autoscroll(autoscroll, cx);
2024 }
2025 self.selections_did_change(true, &old_cursor_position, cx);
2026 }
2027
2028 result
2029 }
2030
2031 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2032 where
2033 I: IntoIterator<Item = (Range<S>, T)>,
2034 S: ToOffset,
2035 T: Into<Arc<str>>,
2036 {
2037 if self.read_only(cx) {
2038 return;
2039 }
2040
2041 self.buffer
2042 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2043 }
2044
2045 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2046 where
2047 I: IntoIterator<Item = (Range<S>, T)>,
2048 S: ToOffset,
2049 T: Into<Arc<str>>,
2050 {
2051 if self.read_only(cx) {
2052 return;
2053 }
2054
2055 self.buffer.update(cx, |buffer, cx| {
2056 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2057 });
2058 }
2059
2060 pub fn edit_with_block_indent<I, S, T>(
2061 &mut self,
2062 edits: I,
2063 original_indent_columns: Vec<u32>,
2064 cx: &mut ViewContext<Self>,
2065 ) where
2066 I: IntoIterator<Item = (Range<S>, T)>,
2067 S: ToOffset,
2068 T: Into<Arc<str>>,
2069 {
2070 if self.read_only(cx) {
2071 return;
2072 }
2073
2074 self.buffer.update(cx, |buffer, cx| {
2075 buffer.edit(
2076 edits,
2077 Some(AutoindentMode::Block {
2078 original_indent_columns,
2079 }),
2080 cx,
2081 )
2082 });
2083 }
2084
2085 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2086 self.hide_context_menu(cx);
2087
2088 match phase {
2089 SelectPhase::Begin {
2090 position,
2091 add,
2092 click_count,
2093 } => self.begin_selection(position, add, click_count, cx),
2094 SelectPhase::BeginColumnar {
2095 position,
2096 goal_column,
2097 } => self.begin_columnar_selection(position, goal_column, cx),
2098 SelectPhase::Extend {
2099 position,
2100 click_count,
2101 } => self.extend_selection(position, click_count, cx),
2102 SelectPhase::Update {
2103 position,
2104 goal_column,
2105 scroll_delta,
2106 } => self.update_selection(position, goal_column, scroll_delta, cx),
2107 SelectPhase::End => self.end_selection(cx),
2108 }
2109 }
2110
2111 fn extend_selection(
2112 &mut self,
2113 position: DisplayPoint,
2114 click_count: usize,
2115 cx: &mut ViewContext<Self>,
2116 ) {
2117 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2118 let tail = self.selections.newest::<usize>(cx).tail();
2119 self.begin_selection(position, false, click_count, cx);
2120
2121 let position = position.to_offset(&display_map, Bias::Left);
2122 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2123
2124 let mut pending_selection = self
2125 .selections
2126 .pending_anchor()
2127 .expect("extend_selection not called with pending selection");
2128 if position >= tail {
2129 pending_selection.start = tail_anchor;
2130 } else {
2131 pending_selection.end = tail_anchor;
2132 pending_selection.reversed = true;
2133 }
2134
2135 let mut pending_mode = self.selections.pending_mode().unwrap();
2136 match &mut pending_mode {
2137 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2138 _ => {}
2139 }
2140
2141 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2142 s.set_pending(pending_selection, pending_mode)
2143 });
2144 }
2145
2146 fn begin_selection(
2147 &mut self,
2148 position: DisplayPoint,
2149 add: bool,
2150 click_count: usize,
2151 cx: &mut ViewContext<Self>,
2152 ) {
2153 if !self.focus_handle.is_focused(cx) {
2154 cx.focus(&self.focus_handle);
2155 }
2156
2157 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2158 let buffer = &display_map.buffer_snapshot;
2159 let newest_selection = self.selections.newest_anchor().clone();
2160 let position = display_map.clip_point(position, Bias::Left);
2161
2162 let start;
2163 let end;
2164 let mode;
2165 let auto_scroll;
2166 match click_count {
2167 1 => {
2168 start = buffer.anchor_before(position.to_point(&display_map));
2169 end = start;
2170 mode = SelectMode::Character;
2171 auto_scroll = true;
2172 }
2173 2 => {
2174 let range = movement::surrounding_word(&display_map, position);
2175 start = buffer.anchor_before(range.start.to_point(&display_map));
2176 end = buffer.anchor_before(range.end.to_point(&display_map));
2177 mode = SelectMode::Word(start..end);
2178 auto_scroll = true;
2179 }
2180 3 => {
2181 let position = display_map
2182 .clip_point(position, Bias::Left)
2183 .to_point(&display_map);
2184 let line_start = display_map.prev_line_boundary(position).0;
2185 let next_line_start = buffer.clip_point(
2186 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2187 Bias::Left,
2188 );
2189 start = buffer.anchor_before(line_start);
2190 end = buffer.anchor_before(next_line_start);
2191 mode = SelectMode::Line(start..end);
2192 auto_scroll = true;
2193 }
2194 _ => {
2195 start = buffer.anchor_before(0);
2196 end = buffer.anchor_before(buffer.len());
2197 mode = SelectMode::All;
2198 auto_scroll = false;
2199 }
2200 }
2201
2202 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2203 if !add {
2204 s.clear_disjoint();
2205 } else if click_count > 1 {
2206 s.delete(newest_selection.id)
2207 }
2208
2209 s.set_pending_anchor_range(start..end, mode);
2210 });
2211 }
2212
2213 fn begin_columnar_selection(
2214 &mut self,
2215 position: DisplayPoint,
2216 goal_column: u32,
2217 cx: &mut ViewContext<Self>,
2218 ) {
2219 if !self.focus_handle.is_focused(cx) {
2220 cx.focus(&self.focus_handle);
2221 }
2222
2223 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2224 let tail = self.selections.newest::<Point>(cx).tail();
2225 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2226
2227 self.select_columns(
2228 tail.to_display_point(&display_map),
2229 position,
2230 goal_column,
2231 &display_map,
2232 cx,
2233 );
2234 }
2235
2236 fn update_selection(
2237 &mut self,
2238 position: DisplayPoint,
2239 goal_column: u32,
2240 scroll_delta: gpui::Point<f32>,
2241 cx: &mut ViewContext<Self>,
2242 ) {
2243 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2244
2245 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2246 let tail = tail.to_display_point(&display_map);
2247 self.select_columns(tail, position, goal_column, &display_map, cx);
2248 } else if let Some(mut pending) = self.selections.pending_anchor() {
2249 let buffer = self.buffer.read(cx).snapshot(cx);
2250 let head;
2251 let tail;
2252 let mode = self.selections.pending_mode().unwrap();
2253 match &mode {
2254 SelectMode::Character => {
2255 head = position.to_point(&display_map);
2256 tail = pending.tail().to_point(&buffer);
2257 }
2258 SelectMode::Word(original_range) => {
2259 let original_display_range = original_range.start.to_display_point(&display_map)
2260 ..original_range.end.to_display_point(&display_map);
2261 let original_buffer_range = original_display_range.start.to_point(&display_map)
2262 ..original_display_range.end.to_point(&display_map);
2263 if movement::is_inside_word(&display_map, position)
2264 || original_display_range.contains(&position)
2265 {
2266 let word_range = movement::surrounding_word(&display_map, position);
2267 if word_range.start < original_display_range.start {
2268 head = word_range.start.to_point(&display_map);
2269 } else {
2270 head = word_range.end.to_point(&display_map);
2271 }
2272 } else {
2273 head = position.to_point(&display_map);
2274 }
2275
2276 if head <= original_buffer_range.start {
2277 tail = original_buffer_range.end;
2278 } else {
2279 tail = original_buffer_range.start;
2280 }
2281 }
2282 SelectMode::Line(original_range) => {
2283 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2284
2285 let position = display_map
2286 .clip_point(position, Bias::Left)
2287 .to_point(&display_map);
2288 let line_start = display_map.prev_line_boundary(position).0;
2289 let next_line_start = buffer.clip_point(
2290 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2291 Bias::Left,
2292 );
2293
2294 if line_start < original_range.start {
2295 head = line_start
2296 } else {
2297 head = next_line_start
2298 }
2299
2300 if head <= original_range.start {
2301 tail = original_range.end;
2302 } else {
2303 tail = original_range.start;
2304 }
2305 }
2306 SelectMode::All => {
2307 return;
2308 }
2309 };
2310
2311 if head < tail {
2312 pending.start = buffer.anchor_before(head);
2313 pending.end = buffer.anchor_before(tail);
2314 pending.reversed = true;
2315 } else {
2316 pending.start = buffer.anchor_before(tail);
2317 pending.end = buffer.anchor_before(head);
2318 pending.reversed = false;
2319 }
2320
2321 self.change_selections(None, cx, |s| {
2322 s.set_pending(pending, mode);
2323 });
2324 } else {
2325 log::error!("update_selection dispatched with no pending selection");
2326 return;
2327 }
2328
2329 self.apply_scroll_delta(scroll_delta, cx);
2330 cx.notify();
2331 }
2332
2333 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2334 self.columnar_selection_tail.take();
2335 if self.selections.pending_anchor().is_some() {
2336 let selections = self.selections.all::<usize>(cx);
2337 self.change_selections(None, cx, |s| {
2338 s.select(selections);
2339 s.clear_pending();
2340 });
2341 }
2342 }
2343
2344 fn select_columns(
2345 &mut self,
2346 tail: DisplayPoint,
2347 head: DisplayPoint,
2348 goal_column: u32,
2349 display_map: &DisplaySnapshot,
2350 cx: &mut ViewContext<Self>,
2351 ) {
2352 let start_row = cmp::min(tail.row(), head.row());
2353 let end_row = cmp::max(tail.row(), head.row());
2354 let start_column = cmp::min(tail.column(), goal_column);
2355 let end_column = cmp::max(tail.column(), goal_column);
2356 let reversed = start_column < tail.column();
2357
2358 let selection_ranges = (start_row..=end_row)
2359 .filter_map(|row| {
2360 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2361 let start = display_map
2362 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2363 .to_point(display_map);
2364 let end = display_map
2365 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2366 .to_point(display_map);
2367 if reversed {
2368 Some(end..start)
2369 } else {
2370 Some(start..end)
2371 }
2372 } else {
2373 None
2374 }
2375 })
2376 .collect::<Vec<_>>();
2377
2378 self.change_selections(None, cx, |s| {
2379 s.select_ranges(selection_ranges);
2380 });
2381 cx.notify();
2382 }
2383
2384 pub fn has_pending_nonempty_selection(&self) -> bool {
2385 let pending_nonempty_selection = match self.selections.pending_anchor() {
2386 Some(Selection { start, end, .. }) => start != end,
2387 None => false,
2388 };
2389 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2390 }
2391
2392 pub fn has_pending_selection(&self) -> bool {
2393 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2394 }
2395
2396 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2397 self.clear_expanded_diff_hunks(cx);
2398 if self.dismiss_menus_and_popups(cx) {
2399 return;
2400 }
2401
2402 if self.mode == EditorMode::Full {
2403 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2404 return;
2405 }
2406 }
2407
2408 cx.propagate();
2409 }
2410
2411 pub fn dismiss_menus_and_popups(&mut self, cx: &mut ViewContext<Self>) -> bool {
2412 if self.take_rename(false, cx).is_some() {
2413 return true;
2414 }
2415
2416 if hide_hover(self, cx) {
2417 return true;
2418 }
2419
2420 if self.hide_context_menu(cx).is_some() {
2421 return true;
2422 }
2423
2424 if self.discard_inline_completion(cx) {
2425 return true;
2426 }
2427
2428 if self.snippet_stack.pop().is_some() {
2429 return true;
2430 }
2431
2432 if self.mode == EditorMode::Full {
2433 if self.active_diagnostics.is_some() {
2434 self.dismiss_diagnostics(cx);
2435 return true;
2436 }
2437 }
2438
2439 false
2440 }
2441
2442 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2443 let text: Arc<str> = text.into();
2444
2445 if self.read_only(cx) {
2446 return;
2447 }
2448
2449 let selections = self.selections.all_adjusted(cx);
2450 let mut brace_inserted = false;
2451 let mut edits = Vec::new();
2452 let mut new_selections = Vec::with_capacity(selections.len());
2453 let mut new_autoclose_regions = Vec::new();
2454 let snapshot = self.buffer.read(cx).read(cx);
2455
2456 for (selection, autoclose_region) in
2457 self.selections_with_autoclose_regions(selections, &snapshot)
2458 {
2459 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2460 // Determine if the inserted text matches the opening or closing
2461 // bracket of any of this language's bracket pairs.
2462 let mut bracket_pair = None;
2463 let mut is_bracket_pair_start = false;
2464 let mut is_bracket_pair_end = false;
2465 if !text.is_empty() {
2466 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2467 // and they are removing the character that triggered IME popup.
2468 for (pair, enabled) in scope.brackets() {
2469 if !pair.close {
2470 continue;
2471 }
2472
2473 if enabled && pair.start.ends_with(text.as_ref()) {
2474 bracket_pair = Some(pair.clone());
2475 is_bracket_pair_start = true;
2476 break;
2477 }
2478 if pair.end.as_str() == text.as_ref() {
2479 bracket_pair = Some(pair.clone());
2480 is_bracket_pair_end = true;
2481 break;
2482 }
2483 }
2484 }
2485
2486 if let Some(bracket_pair) = bracket_pair {
2487 if selection.is_empty() {
2488 if is_bracket_pair_start {
2489 let prefix_len = bracket_pair.start.len() - text.len();
2490
2491 // If the inserted text is a suffix of an opening bracket and the
2492 // selection is preceded by the rest of the opening bracket, then
2493 // insert the closing bracket.
2494 let following_text_allows_autoclose = snapshot
2495 .chars_at(selection.start)
2496 .next()
2497 .map_or(true, |c| scope.should_autoclose_before(c));
2498 let preceding_text_matches_prefix = prefix_len == 0
2499 || (selection.start.column >= (prefix_len as u32)
2500 && snapshot.contains_str_at(
2501 Point::new(
2502 selection.start.row,
2503 selection.start.column - (prefix_len as u32),
2504 ),
2505 &bracket_pair.start[..prefix_len],
2506 ));
2507 let autoclose = self.use_autoclose
2508 && snapshot.settings_at(selection.start, cx).use_autoclose;
2509 if autoclose
2510 && following_text_allows_autoclose
2511 && preceding_text_matches_prefix
2512 {
2513 let anchor = snapshot.anchor_before(selection.end);
2514 new_selections.push((selection.map(|_| anchor), text.len()));
2515 new_autoclose_regions.push((
2516 anchor,
2517 text.len(),
2518 selection.id,
2519 bracket_pair.clone(),
2520 ));
2521 edits.push((
2522 selection.range(),
2523 format!("{}{}", text, bracket_pair.end).into(),
2524 ));
2525 brace_inserted = true;
2526 continue;
2527 }
2528 }
2529
2530 if let Some(region) = autoclose_region {
2531 // If the selection is followed by an auto-inserted closing bracket,
2532 // then don't insert that closing bracket again; just move the selection
2533 // past the closing bracket.
2534 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2535 && text.as_ref() == region.pair.end.as_str();
2536 if should_skip {
2537 let anchor = snapshot.anchor_after(selection.end);
2538 new_selections
2539 .push((selection.map(|_| anchor), region.pair.end.len()));
2540 continue;
2541 }
2542 }
2543
2544 let always_treat_brackets_as_autoclosed = snapshot
2545 .settings_at(selection.start, cx)
2546 .always_treat_brackets_as_autoclosed;
2547 if always_treat_brackets_as_autoclosed
2548 && is_bracket_pair_end
2549 && snapshot.contains_str_at(selection.end, text.as_ref())
2550 {
2551 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2552 // and the inserted text is a closing bracket and the selection is followed
2553 // by the closing bracket then move the selection past the closing bracket.
2554 let anchor = snapshot.anchor_after(selection.end);
2555 new_selections.push((selection.map(|_| anchor), text.len()));
2556 continue;
2557 }
2558 }
2559 // If an opening bracket is 1 character long and is typed while
2560 // text is selected, then surround that text with the bracket pair.
2561 else if is_bracket_pair_start && bracket_pair.start.chars().count() == 1 {
2562 edits.push((selection.start..selection.start, text.clone()));
2563 edits.push((
2564 selection.end..selection.end,
2565 bracket_pair.end.as_str().into(),
2566 ));
2567 brace_inserted = true;
2568 new_selections.push((
2569 Selection {
2570 id: selection.id,
2571 start: snapshot.anchor_after(selection.start),
2572 end: snapshot.anchor_before(selection.end),
2573 reversed: selection.reversed,
2574 goal: selection.goal,
2575 },
2576 0,
2577 ));
2578 continue;
2579 }
2580 }
2581 }
2582
2583 if self.auto_replace_emoji_shortcode
2584 && selection.is_empty()
2585 && text.as_ref().ends_with(':')
2586 {
2587 if let Some(possible_emoji_short_code) =
2588 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2589 {
2590 if !possible_emoji_short_code.is_empty() {
2591 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2592 let emoji_shortcode_start = Point::new(
2593 selection.start.row,
2594 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2595 );
2596
2597 // Remove shortcode from buffer
2598 edits.push((
2599 emoji_shortcode_start..selection.start,
2600 "".to_string().into(),
2601 ));
2602 new_selections.push((
2603 Selection {
2604 id: selection.id,
2605 start: snapshot.anchor_after(emoji_shortcode_start),
2606 end: snapshot.anchor_before(selection.start),
2607 reversed: selection.reversed,
2608 goal: selection.goal,
2609 },
2610 0,
2611 ));
2612
2613 // Insert emoji
2614 let selection_start_anchor = snapshot.anchor_after(selection.start);
2615 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2616 edits.push((selection.start..selection.end, emoji.to_string().into()));
2617
2618 continue;
2619 }
2620 }
2621 }
2622 }
2623
2624 // If not handling any auto-close operation, then just replace the selected
2625 // text with the given input and move the selection to the end of the
2626 // newly inserted text.
2627 let anchor = snapshot.anchor_after(selection.end);
2628 new_selections.push((selection.map(|_| anchor), 0));
2629 edits.push((selection.start..selection.end, text.clone()));
2630 }
2631
2632 drop(snapshot);
2633 self.transact(cx, |this, cx| {
2634 this.buffer.update(cx, |buffer, cx| {
2635 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2636 });
2637
2638 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2639 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2640 let snapshot = this.buffer.read(cx).read(cx);
2641 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
2642 .zip(new_selection_deltas)
2643 .map(|(selection, delta)| Selection {
2644 id: selection.id,
2645 start: selection.start + delta,
2646 end: selection.end + delta,
2647 reversed: selection.reversed,
2648 goal: SelectionGoal::None,
2649 })
2650 .collect::<Vec<_>>();
2651
2652 let mut i = 0;
2653 for (position, delta, selection_id, pair) in new_autoclose_regions {
2654 let position = position.to_offset(&snapshot) + delta;
2655 let start = snapshot.anchor_before(position);
2656 let end = snapshot.anchor_after(position);
2657 while let Some(existing_state) = this.autoclose_regions.get(i) {
2658 match existing_state.range.start.cmp(&start, &snapshot) {
2659 Ordering::Less => i += 1,
2660 Ordering::Greater => break,
2661 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
2662 Ordering::Less => i += 1,
2663 Ordering::Equal => break,
2664 Ordering::Greater => break,
2665 },
2666 }
2667 }
2668 this.autoclose_regions.insert(
2669 i,
2670 AutocloseRegion {
2671 selection_id,
2672 range: start..end,
2673 pair,
2674 },
2675 );
2676 }
2677
2678 drop(snapshot);
2679 let had_active_copilot_completion = this.has_active_inline_completion(cx);
2680 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2681
2682 if brace_inserted {
2683 // If we inserted a brace while composing text (i.e. typing `"` on a
2684 // Brazilian keyboard), exit the composing state because most likely
2685 // the user wanted to surround the selection.
2686 this.unmark_text(cx);
2687 } else if EditorSettings::get_global(cx).use_on_type_format {
2688 if let Some(on_type_format_task) =
2689 this.trigger_on_type_formatting(text.to_string(), cx)
2690 {
2691 on_type_format_task.detach_and_log_err(cx);
2692 }
2693 }
2694
2695 if had_active_copilot_completion {
2696 this.refresh_inline_completion(true, cx);
2697 if !this.has_active_inline_completion(cx) {
2698 this.trigger_completion_on_input(&text, cx);
2699 }
2700 } else {
2701 this.trigger_completion_on_input(&text, cx);
2702 this.refresh_inline_completion(true, cx);
2703 }
2704 });
2705 }
2706
2707 fn find_possible_emoji_shortcode_at_position(
2708 snapshot: &MultiBufferSnapshot,
2709 position: Point,
2710 ) -> Option<String> {
2711 let mut chars = Vec::new();
2712 let mut found_colon = false;
2713 for char in snapshot.reversed_chars_at(position).take(100) {
2714 // Found a possible emoji shortcode in the middle of the buffer
2715 if found_colon {
2716 if char.is_whitespace() {
2717 chars.reverse();
2718 return Some(chars.iter().collect());
2719 }
2720 // If the previous character is not a whitespace, we are in the middle of a word
2721 // and we only want to complete the shortcode if the word is made up of other emojis
2722 let mut containing_word = String::new();
2723 for ch in snapshot
2724 .reversed_chars_at(position)
2725 .skip(chars.len() + 1)
2726 .take(100)
2727 {
2728 if ch.is_whitespace() {
2729 break;
2730 }
2731 containing_word.push(ch);
2732 }
2733 let containing_word = containing_word.chars().rev().collect::<String>();
2734 if util::word_consists_of_emojis(containing_word.as_str()) {
2735 chars.reverse();
2736 return Some(chars.iter().collect());
2737 }
2738 }
2739
2740 if char.is_whitespace() || !char.is_ascii() {
2741 return None;
2742 }
2743 if char == ':' {
2744 found_colon = true;
2745 } else {
2746 chars.push(char);
2747 }
2748 }
2749 // Found a possible emoji shortcode at the beginning of the buffer
2750 chars.reverse();
2751 Some(chars.iter().collect())
2752 }
2753
2754 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2755 self.transact(cx, |this, cx| {
2756 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2757 let selections = this.selections.all::<usize>(cx);
2758 let multi_buffer = this.buffer.read(cx);
2759 let buffer = multi_buffer.snapshot(cx);
2760 selections
2761 .iter()
2762 .map(|selection| {
2763 let start_point = selection.start.to_point(&buffer);
2764 let mut indent = buffer.indent_size_for_line(start_point.row);
2765 indent.len = cmp::min(indent.len, start_point.column);
2766 let start = selection.start;
2767 let end = selection.end;
2768 let is_cursor = start == end;
2769 let language_scope = buffer.language_scope_at(start);
2770 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2771 &language_scope
2772 {
2773 let leading_whitespace_len = buffer
2774 .reversed_chars_at(start)
2775 .take_while(|c| c.is_whitespace() && *c != '\n')
2776 .map(|c| c.len_utf8())
2777 .sum::<usize>();
2778
2779 let trailing_whitespace_len = buffer
2780 .chars_at(end)
2781 .take_while(|c| c.is_whitespace() && *c != '\n')
2782 .map(|c| c.len_utf8())
2783 .sum::<usize>();
2784
2785 let insert_extra_newline =
2786 language.brackets().any(|(pair, enabled)| {
2787 let pair_start = pair.start.trim_end();
2788 let pair_end = pair.end.trim_start();
2789
2790 enabled
2791 && pair.newline
2792 && buffer.contains_str_at(
2793 end + trailing_whitespace_len,
2794 pair_end,
2795 )
2796 && buffer.contains_str_at(
2797 (start - leading_whitespace_len)
2798 .saturating_sub(pair_start.len()),
2799 pair_start,
2800 )
2801 });
2802 // Comment extension on newline is allowed only for cursor selections
2803 let comment_delimiter = language.line_comment_prefixes().filter(|_| {
2804 let is_comment_extension_enabled =
2805 multi_buffer.settings_at(0, cx).extend_comment_on_newline;
2806 is_cursor && is_comment_extension_enabled
2807 });
2808 let get_comment_delimiter = |delimiters: &[Arc<str>]| {
2809 let max_len_of_delimiter =
2810 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
2811 let (snapshot, range) =
2812 buffer.buffer_line_for_row(start_point.row)?;
2813
2814 let mut index_of_first_non_whitespace = 0;
2815 let comment_candidate = snapshot
2816 .chars_for_range(range)
2817 .skip_while(|c| {
2818 let should_skip = c.is_whitespace();
2819 if should_skip {
2820 index_of_first_non_whitespace += 1;
2821 }
2822 should_skip
2823 })
2824 .take(max_len_of_delimiter)
2825 .collect::<String>();
2826 let comment_prefix = delimiters.iter().find(|comment_prefix| {
2827 comment_candidate.starts_with(comment_prefix.as_ref())
2828 })?;
2829 let cursor_is_placed_after_comment_marker =
2830 index_of_first_non_whitespace + comment_prefix.len()
2831 <= start_point.column as usize;
2832 if cursor_is_placed_after_comment_marker {
2833 Some(comment_prefix.clone())
2834 } else {
2835 None
2836 }
2837 };
2838 let comment_delimiter = if let Some(delimiters) = comment_delimiter {
2839 get_comment_delimiter(delimiters)
2840 } else {
2841 None
2842 };
2843 (comment_delimiter, insert_extra_newline)
2844 } else {
2845 (None, false)
2846 };
2847
2848 let capacity_for_delimiter = comment_delimiter
2849 .as_deref()
2850 .map(str::len)
2851 .unwrap_or_default();
2852 let mut new_text =
2853 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
2854 new_text.push_str("\n");
2855 new_text.extend(indent.chars());
2856 if let Some(delimiter) = &comment_delimiter {
2857 new_text.push_str(&delimiter);
2858 }
2859 if insert_extra_newline {
2860 new_text = new_text.repeat(2);
2861 }
2862
2863 let anchor = buffer.anchor_after(end);
2864 let new_selection = selection.map(|_| anchor);
2865 (
2866 (start..end, new_text),
2867 (insert_extra_newline, new_selection),
2868 )
2869 })
2870 .unzip()
2871 };
2872
2873 this.edit_with_autoindent(edits, cx);
2874 let buffer = this.buffer.read(cx).snapshot(cx);
2875 let new_selections = selection_fixup_info
2876 .into_iter()
2877 .map(|(extra_newline_inserted, new_selection)| {
2878 let mut cursor = new_selection.end.to_point(&buffer);
2879 if extra_newline_inserted {
2880 cursor.row -= 1;
2881 cursor.column = buffer.line_len(cursor.row);
2882 }
2883 new_selection.map(|_| cursor)
2884 })
2885 .collect();
2886
2887 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
2888 this.refresh_inline_completion(true, cx);
2889 });
2890 }
2891
2892 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
2893 let buffer = self.buffer.read(cx);
2894 let snapshot = buffer.snapshot(cx);
2895
2896 let mut edits = Vec::new();
2897 let mut rows = Vec::new();
2898
2899 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
2900 let cursor = selection.head();
2901 let row = cursor.row;
2902
2903 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
2904
2905 let newline = "\n".to_string();
2906 edits.push((start_of_line..start_of_line, newline));
2907
2908 rows.push(row + rows_inserted as u32);
2909 }
2910
2911 self.transact(cx, |editor, cx| {
2912 editor.edit(edits, cx);
2913
2914 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2915 let mut index = 0;
2916 s.move_cursors_with(|map, _, _| {
2917 let row = rows[index];
2918 index += 1;
2919
2920 let point = Point::new(row, 0);
2921 let boundary = map.next_line_boundary(point).1;
2922 let clipped = map.clip_point(boundary, Bias::Left);
2923
2924 (clipped, SelectionGoal::None)
2925 });
2926 });
2927
2928 let mut indent_edits = Vec::new();
2929 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2930 for row in rows {
2931 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2932 for (row, indent) in indents {
2933 if indent.len == 0 {
2934 continue;
2935 }
2936
2937 let text = match indent.kind {
2938 IndentKind::Space => " ".repeat(indent.len as usize),
2939 IndentKind::Tab => "\t".repeat(indent.len as usize),
2940 };
2941 let point = Point::new(row, 0);
2942 indent_edits.push((point..point, text));
2943 }
2944 }
2945 editor.edit(indent_edits, cx);
2946 });
2947 }
2948
2949 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
2950 let buffer = self.buffer.read(cx);
2951 let snapshot = buffer.snapshot(cx);
2952
2953 let mut edits = Vec::new();
2954 let mut rows = Vec::new();
2955 let mut rows_inserted = 0;
2956
2957 for selection in self.selections.all_adjusted(cx) {
2958 let cursor = selection.head();
2959 let row = cursor.row;
2960
2961 let point = Point::new(row + 1, 0);
2962 let start_of_line = snapshot.clip_point(point, Bias::Left);
2963
2964 let newline = "\n".to_string();
2965 edits.push((start_of_line..start_of_line, newline));
2966
2967 rows_inserted += 1;
2968 rows.push(row + rows_inserted);
2969 }
2970
2971 self.transact(cx, |editor, cx| {
2972 editor.edit(edits, cx);
2973
2974 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
2975 let mut index = 0;
2976 s.move_cursors_with(|map, _, _| {
2977 let row = rows[index];
2978 index += 1;
2979
2980 let point = Point::new(row, 0);
2981 let boundary = map.next_line_boundary(point).1;
2982 let clipped = map.clip_point(boundary, Bias::Left);
2983
2984 (clipped, SelectionGoal::None)
2985 });
2986 });
2987
2988 let mut indent_edits = Vec::new();
2989 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
2990 for row in rows {
2991 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
2992 for (row, indent) in indents {
2993 if indent.len == 0 {
2994 continue;
2995 }
2996
2997 let text = match indent.kind {
2998 IndentKind::Space => " ".repeat(indent.len as usize),
2999 IndentKind::Tab => "\t".repeat(indent.len as usize),
3000 };
3001 let point = Point::new(row, 0);
3002 indent_edits.push((point..point, text));
3003 }
3004 }
3005 editor.edit(indent_edits, cx);
3006 });
3007 }
3008
3009 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3010 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3011 original_indent_columns: Vec::new(),
3012 });
3013 self.insert_with_autoindent_mode(text, autoindent, cx);
3014 }
3015
3016 fn insert_with_autoindent_mode(
3017 &mut self,
3018 text: &str,
3019 autoindent_mode: Option<AutoindentMode>,
3020 cx: &mut ViewContext<Self>,
3021 ) {
3022 if self.read_only(cx) {
3023 return;
3024 }
3025
3026 let text: Arc<str> = text.into();
3027 self.transact(cx, |this, cx| {
3028 let old_selections = this.selections.all_adjusted(cx);
3029 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3030 let anchors = {
3031 let snapshot = buffer.read(cx);
3032 old_selections
3033 .iter()
3034 .map(|s| {
3035 let anchor = snapshot.anchor_after(s.head());
3036 s.map(|_| anchor)
3037 })
3038 .collect::<Vec<_>>()
3039 };
3040 buffer.edit(
3041 old_selections
3042 .iter()
3043 .map(|s| (s.start..s.end, text.clone())),
3044 autoindent_mode,
3045 cx,
3046 );
3047 anchors
3048 });
3049
3050 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3051 s.select_anchors(selection_anchors);
3052 })
3053 });
3054 }
3055
3056 fn trigger_completion_on_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3057 if !EditorSettings::get_global(cx).show_completions_on_input {
3058 return;
3059 }
3060
3061 let selection = self.selections.newest_anchor();
3062 if self
3063 .buffer
3064 .read(cx)
3065 .is_completion_trigger(selection.head(), text, cx)
3066 {
3067 self.show_completions(&ShowCompletions, cx);
3068 } else {
3069 self.hide_context_menu(cx);
3070 }
3071 }
3072
3073 /// If any empty selections is touching the start of its innermost containing autoclose
3074 /// region, expand it to select the brackets.
3075 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3076 let selections = self.selections.all::<usize>(cx);
3077 let buffer = self.buffer.read(cx).read(cx);
3078 let new_selections = self
3079 .selections_with_autoclose_regions(selections, &buffer)
3080 .map(|(mut selection, region)| {
3081 if !selection.is_empty() {
3082 return selection;
3083 }
3084
3085 if let Some(region) = region {
3086 let mut range = region.range.to_offset(&buffer);
3087 if selection.start == range.start && range.start >= region.pair.start.len() {
3088 range.start -= region.pair.start.len();
3089 if buffer.contains_str_at(range.start, ®ion.pair.start)
3090 && buffer.contains_str_at(range.end, ®ion.pair.end)
3091 {
3092 range.end += region.pair.end.len();
3093 selection.start = range.start;
3094 selection.end = range.end;
3095
3096 return selection;
3097 }
3098 }
3099 }
3100
3101 let always_treat_brackets_as_autoclosed = buffer
3102 .settings_at(selection.start, cx)
3103 .always_treat_brackets_as_autoclosed;
3104
3105 if !always_treat_brackets_as_autoclosed {
3106 return selection;
3107 }
3108
3109 if let Some(scope) = buffer.language_scope_at(selection.start) {
3110 for (pair, enabled) in scope.brackets() {
3111 if !enabled || !pair.close {
3112 continue;
3113 }
3114
3115 if buffer.contains_str_at(selection.start, &pair.end) {
3116 let pair_start_len = pair.start.len();
3117 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3118 {
3119 selection.start -= pair_start_len;
3120 selection.end += pair.end.len();
3121
3122 return selection;
3123 }
3124 }
3125 }
3126 }
3127
3128 selection
3129 })
3130 .collect();
3131
3132 drop(buffer);
3133 self.change_selections(None, cx, |selections| selections.select(new_selections));
3134 }
3135
3136 /// Iterate the given selections, and for each one, find the smallest surrounding
3137 /// autoclose region. This uses the ordering of the selections and the autoclose
3138 /// regions to avoid repeated comparisons.
3139 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3140 &'a self,
3141 selections: impl IntoIterator<Item = Selection<D>>,
3142 buffer: &'a MultiBufferSnapshot,
3143 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3144 let mut i = 0;
3145 let mut regions = self.autoclose_regions.as_slice();
3146 selections.into_iter().map(move |selection| {
3147 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3148
3149 let mut enclosing = None;
3150 while let Some(pair_state) = regions.get(i) {
3151 if pair_state.range.end.to_offset(buffer) < range.start {
3152 regions = ®ions[i + 1..];
3153 i = 0;
3154 } else if pair_state.range.start.to_offset(buffer) > range.end {
3155 break;
3156 } else {
3157 if pair_state.selection_id == selection.id {
3158 enclosing = Some(pair_state);
3159 }
3160 i += 1;
3161 }
3162 }
3163
3164 (selection.clone(), enclosing)
3165 })
3166 }
3167
3168 /// Remove any autoclose regions that no longer contain their selection.
3169 fn invalidate_autoclose_regions(
3170 &mut self,
3171 mut selections: &[Selection<Anchor>],
3172 buffer: &MultiBufferSnapshot,
3173 ) {
3174 self.autoclose_regions.retain(|state| {
3175 let mut i = 0;
3176 while let Some(selection) = selections.get(i) {
3177 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3178 selections = &selections[1..];
3179 continue;
3180 }
3181 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3182 break;
3183 }
3184 if selection.id == state.selection_id {
3185 return true;
3186 } else {
3187 i += 1;
3188 }
3189 }
3190 false
3191 });
3192 }
3193
3194 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3195 let offset = position.to_offset(buffer);
3196 let (word_range, kind) = buffer.surrounding_word(offset);
3197 if offset > word_range.start && kind == Some(CharKind::Word) {
3198 Some(
3199 buffer
3200 .text_for_range(word_range.start..offset)
3201 .collect::<String>(),
3202 )
3203 } else {
3204 None
3205 }
3206 }
3207
3208 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3209 self.refresh_inlay_hints(
3210 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3211 cx,
3212 );
3213 }
3214
3215 pub fn inlay_hints_enabled(&self) -> bool {
3216 self.inlay_hint_cache.enabled
3217 }
3218
3219 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3220 if self.project.is_none() || self.mode != EditorMode::Full {
3221 return;
3222 }
3223
3224 let reason_description = reason.description();
3225 let ignore_debounce = matches!(
3226 reason,
3227 InlayHintRefreshReason::SettingsChange(_)
3228 | InlayHintRefreshReason::Toggle(_)
3229 | InlayHintRefreshReason::ExcerptsRemoved(_)
3230 );
3231 let (invalidate_cache, required_languages) = match reason {
3232 InlayHintRefreshReason::Toggle(enabled) => {
3233 self.inlay_hint_cache.enabled = enabled;
3234 if enabled {
3235 (InvalidationStrategy::RefreshRequested, None)
3236 } else {
3237 self.inlay_hint_cache.clear();
3238 self.splice_inlays(
3239 self.visible_inlay_hints(cx)
3240 .iter()
3241 .map(|inlay| inlay.id)
3242 .collect(),
3243 Vec::new(),
3244 cx,
3245 );
3246 return;
3247 }
3248 }
3249 InlayHintRefreshReason::SettingsChange(new_settings) => {
3250 match self.inlay_hint_cache.update_settings(
3251 &self.buffer,
3252 new_settings,
3253 self.visible_inlay_hints(cx),
3254 cx,
3255 ) {
3256 ControlFlow::Break(Some(InlaySplice {
3257 to_remove,
3258 to_insert,
3259 })) => {
3260 self.splice_inlays(to_remove, to_insert, cx);
3261 return;
3262 }
3263 ControlFlow::Break(None) => return,
3264 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3265 }
3266 }
3267 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3268 if let Some(InlaySplice {
3269 to_remove,
3270 to_insert,
3271 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3272 {
3273 self.splice_inlays(to_remove, to_insert, cx);
3274 }
3275 return;
3276 }
3277 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3278 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3279 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3280 }
3281 InlayHintRefreshReason::RefreshRequested => {
3282 (InvalidationStrategy::RefreshRequested, None)
3283 }
3284 };
3285
3286 if let Some(InlaySplice {
3287 to_remove,
3288 to_insert,
3289 }) = self.inlay_hint_cache.spawn_hint_refresh(
3290 reason_description,
3291 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3292 invalidate_cache,
3293 ignore_debounce,
3294 cx,
3295 ) {
3296 self.splice_inlays(to_remove, to_insert, cx);
3297 }
3298 }
3299
3300 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3301 self.display_map
3302 .read(cx)
3303 .current_inlays()
3304 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3305 .cloned()
3306 .collect()
3307 }
3308
3309 pub fn excerpts_for_inlay_hints_query(
3310 &self,
3311 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3312 cx: &mut ViewContext<Editor>,
3313 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3314 let Some(project) = self.project.as_ref() else {
3315 return HashMap::default();
3316 };
3317 let project = project.read(cx);
3318 let multi_buffer = self.buffer().read(cx);
3319 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3320 let multi_buffer_visible_start = self
3321 .scroll_manager
3322 .anchor()
3323 .anchor
3324 .to_point(&multi_buffer_snapshot);
3325 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3326 multi_buffer_visible_start
3327 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3328 Bias::Left,
3329 );
3330 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3331 multi_buffer
3332 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3333 .into_iter()
3334 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3335 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3336 let buffer = buffer_handle.read(cx);
3337 let buffer_file = project::File::from_dyn(buffer.file())?;
3338 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3339 let worktree_entry = buffer_worktree
3340 .read(cx)
3341 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3342 if worktree_entry.is_ignored {
3343 return None;
3344 }
3345
3346 let language = buffer.language()?;
3347 if let Some(restrict_to_languages) = restrict_to_languages {
3348 if !restrict_to_languages.contains(language) {
3349 return None;
3350 }
3351 }
3352 Some((
3353 excerpt_id,
3354 (
3355 buffer_handle,
3356 buffer.version().clone(),
3357 excerpt_visible_range,
3358 ),
3359 ))
3360 })
3361 .collect()
3362 }
3363
3364 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3365 TextLayoutDetails {
3366 text_system: cx.text_system().clone(),
3367 editor_style: self.style.clone().unwrap(),
3368 rem_size: cx.rem_size(),
3369 scroll_anchor: self.scroll_manager.anchor(),
3370 visible_rows: self.visible_line_count(),
3371 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3372 }
3373 }
3374
3375 fn splice_inlays(
3376 &self,
3377 to_remove: Vec<InlayId>,
3378 to_insert: Vec<Inlay>,
3379 cx: &mut ViewContext<Self>,
3380 ) {
3381 self.display_map.update(cx, |display_map, cx| {
3382 display_map.splice_inlays(to_remove, to_insert, cx);
3383 });
3384 cx.notify();
3385 }
3386
3387 fn trigger_on_type_formatting(
3388 &self,
3389 input: String,
3390 cx: &mut ViewContext<Self>,
3391 ) -> Option<Task<Result<()>>> {
3392 if input.len() != 1 {
3393 return None;
3394 }
3395
3396 let project = self.project.as_ref()?;
3397 let position = self.selections.newest_anchor().head();
3398 let (buffer, buffer_position) = self
3399 .buffer
3400 .read(cx)
3401 .text_anchor_for_position(position, cx)?;
3402
3403 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3404 // hence we do LSP request & edit on host side only — add formats to host's history.
3405 let push_to_lsp_host_history = true;
3406 // If this is not the host, append its history with new edits.
3407 let push_to_client_history = project.read(cx).is_remote();
3408
3409 let on_type_formatting = project.update(cx, |project, cx| {
3410 project.on_type_format(
3411 buffer.clone(),
3412 buffer_position,
3413 input,
3414 push_to_lsp_host_history,
3415 cx,
3416 )
3417 });
3418 Some(cx.spawn(|editor, mut cx| async move {
3419 if let Some(transaction) = on_type_formatting.await? {
3420 if push_to_client_history {
3421 buffer
3422 .update(&mut cx, |buffer, _| {
3423 buffer.push_transaction(transaction, Instant::now());
3424 })
3425 .ok();
3426 }
3427 editor.update(&mut cx, |editor, cx| {
3428 editor.refresh_document_highlights(cx);
3429 })?;
3430 }
3431 Ok(())
3432 }))
3433 }
3434
3435 fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3436 if self.pending_rename.is_some() {
3437 return;
3438 }
3439
3440 let Some(provider) = self.completion_provider.as_ref() else {
3441 return;
3442 };
3443
3444 let position = self.selections.newest_anchor().head();
3445 let (buffer, buffer_position) =
3446 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3447 output
3448 } else {
3449 return;
3450 };
3451
3452 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3453 let completions = provider.completions(&buffer, buffer_position, cx);
3454
3455 let id = post_inc(&mut self.next_completion_id);
3456 let task = cx.spawn(|this, mut cx| {
3457 async move {
3458 let completions = completions.await.log_err();
3459 let menu = if let Some(completions) = completions {
3460 let mut menu = CompletionsMenu {
3461 id,
3462 initial_position: position,
3463 match_candidates: completions
3464 .iter()
3465 .enumerate()
3466 .map(|(id, completion)| {
3467 StringMatchCandidate::new(
3468 id,
3469 completion.label.text[completion.label.filter_range.clone()]
3470 .into(),
3471 )
3472 })
3473 .collect(),
3474 buffer: buffer.clone(),
3475 completions: Arc::new(RwLock::new(completions.into())),
3476 matches: Vec::new().into(),
3477 selected_item: 0,
3478 scroll_handle: UniformListScrollHandle::new(),
3479 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3480 DebouncedDelay::new(),
3481 )),
3482 };
3483 menu.filter(query.as_deref(), cx.background_executor().clone())
3484 .await;
3485
3486 if menu.matches.is_empty() {
3487 None
3488 } else {
3489 this.update(&mut cx, |editor, cx| {
3490 let completions = menu.completions.clone();
3491 let matches = menu.matches.clone();
3492
3493 let delay_ms = EditorSettings::get_global(cx)
3494 .completion_documentation_secondary_query_debounce;
3495 let delay = Duration::from_millis(delay_ms);
3496
3497 editor
3498 .completion_documentation_pre_resolve_debounce
3499 .fire_new(delay, cx, |editor, cx| {
3500 CompletionsMenu::pre_resolve_completion_documentation(
3501 buffer,
3502 completions,
3503 matches,
3504 editor,
3505 cx,
3506 )
3507 });
3508 })
3509 .ok();
3510 Some(menu)
3511 }
3512 } else {
3513 None
3514 };
3515
3516 this.update(&mut cx, |this, cx| {
3517 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3518
3519 let mut context_menu = this.context_menu.write();
3520 match context_menu.as_ref() {
3521 None => {}
3522
3523 Some(ContextMenu::Completions(prev_menu)) => {
3524 if prev_menu.id > id {
3525 return;
3526 }
3527 }
3528
3529 _ => return,
3530 }
3531
3532 if this.focus_handle.is_focused(cx) && menu.is_some() {
3533 let menu = menu.unwrap();
3534 *context_menu = Some(ContextMenu::Completions(menu));
3535 drop(context_menu);
3536 this.discard_inline_completion(cx);
3537 cx.notify();
3538 } else if this.completion_tasks.len() <= 1 {
3539 // If there are no more completion tasks and the last menu was
3540 // empty, we should hide it. If it was already hidden, we should
3541 // also show the copilot completion when available.
3542 drop(context_menu);
3543 if this.hide_context_menu(cx).is_none() {
3544 this.update_visible_inline_completion(cx);
3545 }
3546 }
3547 })?;
3548
3549 Ok::<_, anyhow::Error>(())
3550 }
3551 .log_err()
3552 });
3553
3554 self.completion_tasks.push((id, task));
3555 }
3556
3557 pub fn confirm_completion(
3558 &mut self,
3559 action: &ConfirmCompletion,
3560 cx: &mut ViewContext<Self>,
3561 ) -> Option<Task<Result<()>>> {
3562 use language::ToOffset as _;
3563
3564 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3565 menu
3566 } else {
3567 return None;
3568 };
3569
3570 let mat = completions_menu
3571 .matches
3572 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
3573 let buffer_handle = completions_menu.buffer;
3574 let completions = completions_menu.completions.read();
3575 let completion = completions.get(mat.candidate_id)?;
3576 cx.stop_propagation();
3577
3578 let snippet;
3579 let text;
3580 if completion.is_snippet() {
3581 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3582 text = snippet.as_ref().unwrap().text.clone();
3583 } else {
3584 snippet = None;
3585 text = completion.new_text.clone();
3586 };
3587 let selections = self.selections.all::<usize>(cx);
3588 let buffer = buffer_handle.read(cx);
3589 let old_range = completion.old_range.to_offset(buffer);
3590 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3591
3592 let newest_selection = self.selections.newest_anchor();
3593 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3594 return None;
3595 }
3596
3597 let lookbehind = newest_selection
3598 .start
3599 .text_anchor
3600 .to_offset(buffer)
3601 .saturating_sub(old_range.start);
3602 let lookahead = old_range
3603 .end
3604 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3605 let mut common_prefix_len = old_text
3606 .bytes()
3607 .zip(text.bytes())
3608 .take_while(|(a, b)| a == b)
3609 .count();
3610
3611 let snapshot = self.buffer.read(cx).snapshot(cx);
3612 let mut range_to_replace: Option<Range<isize>> = None;
3613 let mut ranges = Vec::new();
3614 for selection in &selections {
3615 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3616 let start = selection.start.saturating_sub(lookbehind);
3617 let end = selection.end + lookahead;
3618 if selection.id == newest_selection.id {
3619 range_to_replace = Some(
3620 ((start + common_prefix_len) as isize - selection.start as isize)
3621 ..(end as isize - selection.start as isize),
3622 );
3623 }
3624 ranges.push(start + common_prefix_len..end);
3625 } else {
3626 common_prefix_len = 0;
3627 ranges.clear();
3628 ranges.extend(selections.iter().map(|s| {
3629 if s.id == newest_selection.id {
3630 range_to_replace = Some(
3631 old_range.start.to_offset_utf16(&snapshot).0 as isize
3632 - selection.start as isize
3633 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3634 - selection.start as isize,
3635 );
3636 old_range.clone()
3637 } else {
3638 s.start..s.end
3639 }
3640 }));
3641 break;
3642 }
3643 }
3644 let text = &text[common_prefix_len..];
3645
3646 cx.emit(EditorEvent::InputHandled {
3647 utf16_range_to_replace: range_to_replace,
3648 text: text.into(),
3649 });
3650
3651 self.transact(cx, |this, cx| {
3652 if let Some(mut snippet) = snippet {
3653 snippet.text = text.to_string();
3654 for tabstop in snippet.tabstops.iter_mut().flatten() {
3655 tabstop.start -= common_prefix_len as isize;
3656 tabstop.end -= common_prefix_len as isize;
3657 }
3658
3659 this.insert_snippet(&ranges, snippet, cx).log_err();
3660 } else {
3661 this.buffer.update(cx, |buffer, cx| {
3662 buffer.edit(
3663 ranges.iter().map(|range| (range.clone(), text)),
3664 this.autoindent_mode.clone(),
3665 cx,
3666 );
3667 });
3668 }
3669
3670 this.refresh_inline_completion(true, cx);
3671 });
3672
3673 let provider = self.completion_provider.as_ref()?;
3674 let apply_edits = provider.apply_additional_edits_for_completion(
3675 buffer_handle,
3676 completion.clone(),
3677 true,
3678 cx,
3679 );
3680 Some(cx.foreground_executor().spawn(async move {
3681 apply_edits.await?;
3682 Ok(())
3683 }))
3684 }
3685
3686 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
3687 let mut context_menu = self.context_menu.write();
3688 if matches!(context_menu.as_ref(), Some(ContextMenu::CodeActions(_))) {
3689 *context_menu = None;
3690 cx.notify();
3691 return;
3692 }
3693 drop(context_menu);
3694
3695 let deployed_from_indicator = action.deployed_from_indicator;
3696 let mut task = self.code_actions_task.take();
3697 cx.spawn(|this, mut cx| async move {
3698 while let Some(prev_task) = task {
3699 prev_task.await;
3700 task = this.update(&mut cx, |this, _| this.code_actions_task.take())?;
3701 }
3702
3703 this.update(&mut cx, |this, cx| {
3704 if this.focus_handle.is_focused(cx) {
3705 if let Some((buffer, actions)) = this.available_code_actions.clone() {
3706 this.completion_tasks.clear();
3707 this.discard_inline_completion(cx);
3708 *this.context_menu.write() =
3709 Some(ContextMenu::CodeActions(CodeActionsMenu {
3710 buffer,
3711 actions,
3712 selected_item: Default::default(),
3713 scroll_handle: UniformListScrollHandle::default(),
3714 deployed_from_indicator,
3715 }));
3716 cx.notify();
3717 }
3718 }
3719 })?;
3720
3721 Ok::<_, anyhow::Error>(())
3722 })
3723 .detach_and_log_err(cx);
3724 }
3725
3726 pub fn confirm_code_action(
3727 &mut self,
3728 action: &ConfirmCodeAction,
3729 cx: &mut ViewContext<Self>,
3730 ) -> Option<Task<Result<()>>> {
3731 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
3732 menu
3733 } else {
3734 return None;
3735 };
3736 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
3737 let action = actions_menu.actions.get(action_ix)?.clone();
3738 let title = action.lsp_action.title.clone();
3739 let buffer = actions_menu.buffer;
3740 let workspace = self.workspace()?;
3741
3742 let apply_code_actions = workspace
3743 .read(cx)
3744 .project()
3745 .clone()
3746 .update(cx, |project, cx| {
3747 project.apply_code_action(buffer, action, true, cx)
3748 });
3749 let workspace = workspace.downgrade();
3750 Some(cx.spawn(|editor, cx| async move {
3751 let project_transaction = apply_code_actions.await?;
3752 Self::open_project_transaction(&editor, workspace, project_transaction, title, cx).await
3753 }))
3754 }
3755
3756 async fn open_project_transaction(
3757 this: &WeakView<Editor>,
3758 workspace: WeakView<Workspace>,
3759 transaction: ProjectTransaction,
3760 title: String,
3761 mut cx: AsyncWindowContext,
3762 ) -> Result<()> {
3763 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
3764
3765 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
3766 cx.update(|cx| {
3767 entries.sort_unstable_by_key(|(buffer, _)| {
3768 buffer.read(cx).file().map(|f| f.path().clone())
3769 });
3770 })?;
3771
3772 // If the project transaction's edits are all contained within this editor, then
3773 // avoid opening a new editor to display them.
3774
3775 if let Some((buffer, transaction)) = entries.first() {
3776 if entries.len() == 1 {
3777 let excerpt = this.update(&mut cx, |editor, cx| {
3778 editor
3779 .buffer()
3780 .read(cx)
3781 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
3782 })?;
3783 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
3784 if excerpted_buffer == *buffer {
3785 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
3786 let excerpt_range = excerpt_range.to_offset(buffer);
3787 buffer
3788 .edited_ranges_for_transaction::<usize>(transaction)
3789 .all(|range| {
3790 excerpt_range.start <= range.start
3791 && excerpt_range.end >= range.end
3792 })
3793 })?;
3794
3795 if all_edits_within_excerpt {
3796 return Ok(());
3797 }
3798 }
3799 }
3800 }
3801 } else {
3802 return Ok(());
3803 }
3804
3805 let mut ranges_to_highlight = Vec::new();
3806 let excerpt_buffer = cx.new_model(|cx| {
3807 let mut multibuffer =
3808 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
3809 for (buffer_handle, transaction) in &entries {
3810 let buffer = buffer_handle.read(cx);
3811 ranges_to_highlight.extend(
3812 multibuffer.push_excerpts_with_context_lines(
3813 buffer_handle.clone(),
3814 buffer
3815 .edited_ranges_for_transaction::<usize>(transaction)
3816 .collect(),
3817 DEFAULT_MULTIBUFFER_CONTEXT,
3818 cx,
3819 ),
3820 );
3821 }
3822 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
3823 multibuffer
3824 })?;
3825
3826 workspace.update(&mut cx, |workspace, cx| {
3827 let project = workspace.project().clone();
3828 let editor =
3829 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), cx));
3830 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
3831 editor.update(cx, |editor, cx| {
3832 editor.highlight_background::<Self>(
3833 &ranges_to_highlight,
3834 |theme| theme.editor_highlighted_line_background,
3835 cx,
3836 );
3837 });
3838 })?;
3839
3840 Ok(())
3841 }
3842
3843 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3844 let project = self.project.clone()?;
3845 let buffer = self.buffer.read(cx);
3846 let newest_selection = self.selections.newest_anchor().clone();
3847 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
3848 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
3849 if start_buffer != end_buffer {
3850 return None;
3851 }
3852
3853 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
3854 cx.background_executor()
3855 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
3856 .await;
3857
3858 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
3859 project.code_actions(&start_buffer, start..end, cx)
3860 }) {
3861 code_actions.await
3862 } else {
3863 Vec::new()
3864 };
3865
3866 this.update(&mut cx, |this, cx| {
3867 this.available_code_actions = if actions.is_empty() {
3868 None
3869 } else {
3870 Some((start_buffer, actions.into()))
3871 };
3872 cx.notify();
3873 })
3874 .log_err();
3875 }));
3876 None
3877 }
3878
3879 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
3880 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
3881 self.show_git_blame_inline = false;
3882
3883 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
3884 cx.background_executor().timer(delay).await;
3885
3886 this.update(&mut cx, |this, cx| {
3887 this.show_git_blame_inline = true;
3888 cx.notify();
3889 })
3890 .log_err();
3891 }));
3892 }
3893 }
3894
3895 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
3896 if self.pending_rename.is_some() {
3897 return None;
3898 }
3899
3900 let project = self.project.clone()?;
3901 let buffer = self.buffer.read(cx);
3902 let newest_selection = self.selections.newest_anchor().clone();
3903 let cursor_position = newest_selection.head();
3904 let (cursor_buffer, cursor_buffer_position) =
3905 buffer.text_anchor_for_position(cursor_position, cx)?;
3906 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
3907 if cursor_buffer != tail_buffer {
3908 return None;
3909 }
3910
3911 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
3912 cx.background_executor()
3913 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
3914 .await;
3915
3916 let highlights = if let Some(highlights) = project
3917 .update(&mut cx, |project, cx| {
3918 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
3919 })
3920 .log_err()
3921 {
3922 highlights.await.log_err()
3923 } else {
3924 None
3925 };
3926
3927 if let Some(highlights) = highlights {
3928 this.update(&mut cx, |this, cx| {
3929 if this.pending_rename.is_some() {
3930 return;
3931 }
3932
3933 let buffer_id = cursor_position.buffer_id;
3934 let buffer = this.buffer.read(cx);
3935 if !buffer
3936 .text_anchor_for_position(cursor_position, cx)
3937 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
3938 {
3939 return;
3940 }
3941
3942 let cursor_buffer_snapshot = cursor_buffer.read(cx);
3943 let mut write_ranges = Vec::new();
3944 let mut read_ranges = Vec::new();
3945 for highlight in highlights {
3946 for (excerpt_id, excerpt_range) in
3947 buffer.excerpts_for_buffer(&cursor_buffer, cx)
3948 {
3949 let start = highlight
3950 .range
3951 .start
3952 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
3953 let end = highlight
3954 .range
3955 .end
3956 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
3957 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
3958 continue;
3959 }
3960
3961 let range = Anchor {
3962 buffer_id,
3963 excerpt_id: excerpt_id,
3964 text_anchor: start,
3965 }..Anchor {
3966 buffer_id,
3967 excerpt_id,
3968 text_anchor: end,
3969 };
3970 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
3971 write_ranges.push(range);
3972 } else {
3973 read_ranges.push(range);
3974 }
3975 }
3976 }
3977
3978 this.highlight_background::<DocumentHighlightRead>(
3979 &read_ranges,
3980 |theme| theme.editor_document_highlight_read_background,
3981 cx,
3982 );
3983 this.highlight_background::<DocumentHighlightWrite>(
3984 &write_ranges,
3985 |theme| theme.editor_document_highlight_write_background,
3986 cx,
3987 );
3988 cx.notify();
3989 })
3990 .log_err();
3991 }
3992 }));
3993 None
3994 }
3995
3996 fn refresh_inline_completion(
3997 &mut self,
3998 debounce: bool,
3999 cx: &mut ViewContext<Self>,
4000 ) -> Option<()> {
4001 let provider = self.inline_completion_provider()?;
4002 let cursor = self.selections.newest_anchor().head();
4003 let (buffer, cursor_buffer_position) =
4004 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4005 if !self.show_inline_completions
4006 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4007 {
4008 self.clear_inline_completion(cx);
4009 return None;
4010 }
4011
4012 self.update_visible_inline_completion(cx);
4013 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4014 Some(())
4015 }
4016
4017 fn cycle_inline_completion(
4018 &mut self,
4019 direction: Direction,
4020 cx: &mut ViewContext<Self>,
4021 ) -> Option<()> {
4022 let provider = self.inline_completion_provider()?;
4023 let cursor = self.selections.newest_anchor().head();
4024 let (buffer, cursor_buffer_position) =
4025 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4026 if !self.show_inline_completions
4027 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4028 {
4029 return None;
4030 }
4031
4032 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4033 self.update_visible_inline_completion(cx);
4034
4035 Some(())
4036 }
4037
4038 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4039 if !self.has_active_inline_completion(cx) {
4040 self.refresh_inline_completion(false, cx);
4041 return;
4042 }
4043
4044 self.update_visible_inline_completion(cx);
4045 }
4046
4047 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4048 self.show_cursor_names(cx);
4049 }
4050
4051 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4052 self.show_cursor_names = true;
4053 cx.notify();
4054 cx.spawn(|this, mut cx| async move {
4055 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4056 this.update(&mut cx, |this, cx| {
4057 this.show_cursor_names = false;
4058 cx.notify()
4059 })
4060 .ok()
4061 })
4062 .detach();
4063 }
4064
4065 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4066 if self.has_active_inline_completion(cx) {
4067 self.cycle_inline_completion(Direction::Next, cx);
4068 } else {
4069 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4070 if is_copilot_disabled {
4071 cx.propagate();
4072 }
4073 }
4074 }
4075
4076 pub fn previous_inline_completion(
4077 &mut self,
4078 _: &PreviousInlineCompletion,
4079 cx: &mut ViewContext<Self>,
4080 ) {
4081 if self.has_active_inline_completion(cx) {
4082 self.cycle_inline_completion(Direction::Prev, cx);
4083 } else {
4084 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4085 if is_copilot_disabled {
4086 cx.propagate();
4087 }
4088 }
4089 }
4090
4091 fn accept_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4092 if let Some(completion) = self.take_active_inline_completion(cx) {
4093 if let Some(provider) = self.inline_completion_provider() {
4094 provider.accept(cx);
4095 }
4096
4097 cx.emit(EditorEvent::InputHandled {
4098 utf16_range_to_replace: None,
4099 text: completion.text.to_string().into(),
4100 });
4101 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4102 cx.notify();
4103 true
4104 } else {
4105 false
4106 }
4107 }
4108
4109 pub fn accept_partial_inline_completion(
4110 &mut self,
4111 _: &AcceptPartialInlineCompletion,
4112 cx: &mut ViewContext<Self>,
4113 ) {
4114 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4115 if let Some(completion) = self.take_active_inline_completion(cx) {
4116 let mut partial_completion = completion
4117 .text
4118 .chars()
4119 .by_ref()
4120 .take_while(|c| c.is_alphabetic())
4121 .collect::<String>();
4122 if partial_completion.is_empty() {
4123 partial_completion = completion
4124 .text
4125 .chars()
4126 .by_ref()
4127 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4128 .collect::<String>();
4129 }
4130
4131 cx.emit(EditorEvent::InputHandled {
4132 utf16_range_to_replace: None,
4133 text: partial_completion.clone().into(),
4134 });
4135 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4136 self.refresh_inline_completion(true, cx);
4137 cx.notify();
4138 }
4139 }
4140 }
4141
4142 fn discard_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> bool {
4143 if let Some(provider) = self.inline_completion_provider() {
4144 provider.discard(cx);
4145 }
4146
4147 self.take_active_inline_completion(cx).is_some()
4148 }
4149
4150 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4151 if let Some(completion) = self.active_inline_completion.as_ref() {
4152 let buffer = self.buffer.read(cx).read(cx);
4153 completion.position.is_valid(&buffer)
4154 } else {
4155 false
4156 }
4157 }
4158
4159 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4160 let completion = self.active_inline_completion.take()?;
4161 self.display_map.update(cx, |map, cx| {
4162 map.splice_inlays(vec![completion.id], Default::default(), cx);
4163 });
4164 let buffer = self.buffer.read(cx).read(cx);
4165
4166 if completion.position.is_valid(&buffer) {
4167 Some(completion)
4168 } else {
4169 None
4170 }
4171 }
4172
4173 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4174 let selection = self.selections.newest_anchor();
4175 let cursor = selection.head();
4176
4177 if self.context_menu.read().is_none()
4178 && self.completion_tasks.is_empty()
4179 && selection.start == selection.end
4180 {
4181 if let Some(provider) = self.inline_completion_provider() {
4182 if let Some((buffer, cursor_buffer_position)) =
4183 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4184 {
4185 if let Some(text) =
4186 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4187 {
4188 let text = Rope::from(text);
4189 let mut to_remove = Vec::new();
4190 if let Some(completion) = self.active_inline_completion.take() {
4191 to_remove.push(completion.id);
4192 }
4193
4194 let completion_inlay =
4195 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4196 self.active_inline_completion = Some(completion_inlay.clone());
4197 self.display_map.update(cx, move |map, cx| {
4198 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4199 });
4200 cx.notify();
4201 return;
4202 }
4203 }
4204 }
4205 }
4206
4207 self.discard_inline_completion(cx);
4208 }
4209
4210 fn clear_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4211 if let Some(old_completion) = self.active_inline_completion.take() {
4212 self.splice_inlays(vec![old_completion.id], Vec::new(), cx);
4213 }
4214 self.discard_inline_completion(cx);
4215 }
4216
4217 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4218 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4219 }
4220
4221 pub fn render_code_actions_indicator(
4222 &self,
4223 _style: &EditorStyle,
4224 is_active: bool,
4225 cx: &mut ViewContext<Self>,
4226 ) -> Option<IconButton> {
4227 if self.available_code_actions.is_some() {
4228 Some(
4229 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4230 .icon_size(IconSize::XSmall)
4231 .size(ui::ButtonSize::None)
4232 .icon_color(Color::Muted)
4233 .selected(is_active)
4234 .on_click(cx.listener(|editor, _e, cx| {
4235 editor.toggle_code_actions(
4236 &ToggleCodeActions {
4237 deployed_from_indicator: true,
4238 },
4239 cx,
4240 );
4241 })),
4242 )
4243 } else {
4244 None
4245 }
4246 }
4247
4248 pub fn render_fold_indicators(
4249 &mut self,
4250 fold_data: Vec<Option<(FoldStatus, u32, bool)>>,
4251 _style: &EditorStyle,
4252 gutter_hovered: bool,
4253 _line_height: Pixels,
4254 _gutter_margin: Pixels,
4255 cx: &mut ViewContext<Self>,
4256 ) -> Vec<Option<AnyElement>> {
4257 fold_data
4258 .iter()
4259 .enumerate()
4260 .map(|(ix, fold_data)| {
4261 fold_data
4262 .map(|(fold_status, buffer_row, active)| {
4263 (active || gutter_hovered || fold_status == FoldStatus::Folded).then(|| {
4264 IconButton::new(ix, ui::IconName::ChevronDown)
4265 .on_click(cx.listener(move |this, _e, cx| match fold_status {
4266 FoldStatus::Folded => {
4267 this.unfold_at(&UnfoldAt { buffer_row }, cx);
4268 }
4269 FoldStatus::Foldable => {
4270 this.fold_at(&FoldAt { buffer_row }, cx);
4271 }
4272 }))
4273 .icon_color(ui::Color::Muted)
4274 .icon_size(ui::IconSize::Small)
4275 .selected(fold_status == FoldStatus::Folded)
4276 .selected_icon(ui::IconName::ChevronRight)
4277 .size(ui::ButtonSize::None)
4278 .into_any_element()
4279 })
4280 })
4281 .flatten()
4282 })
4283 .collect()
4284 }
4285
4286 pub fn context_menu_visible(&self) -> bool {
4287 self.context_menu
4288 .read()
4289 .as_ref()
4290 .map_or(false, |menu| menu.visible())
4291 }
4292
4293 fn render_context_menu(
4294 &self,
4295 cursor_position: DisplayPoint,
4296 style: &EditorStyle,
4297 max_height: Pixels,
4298 cx: &mut ViewContext<Editor>,
4299 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4300 self.context_menu.read().as_ref().map(|menu| {
4301 menu.render(
4302 cursor_position,
4303 style,
4304 max_height,
4305 self.workspace.as_ref().map(|(w, _)| w.clone()),
4306 cx,
4307 )
4308 })
4309 }
4310
4311 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4312 cx.notify();
4313 self.completion_tasks.clear();
4314 let context_menu = self.context_menu.write().take();
4315 if context_menu.is_some() {
4316 self.update_visible_inline_completion(cx);
4317 }
4318 context_menu
4319 }
4320
4321 pub fn insert_snippet(
4322 &mut self,
4323 insertion_ranges: &[Range<usize>],
4324 snippet: Snippet,
4325 cx: &mut ViewContext<Self>,
4326 ) -> Result<()> {
4327 let tabstops = self.buffer.update(cx, |buffer, cx| {
4328 let snippet_text: Arc<str> = snippet.text.clone().into();
4329 buffer.edit(
4330 insertion_ranges
4331 .iter()
4332 .cloned()
4333 .map(|range| (range, snippet_text.clone())),
4334 Some(AutoindentMode::EachLine),
4335 cx,
4336 );
4337
4338 let snapshot = &*buffer.read(cx);
4339 let snippet = &snippet;
4340 snippet
4341 .tabstops
4342 .iter()
4343 .map(|tabstop| {
4344 let mut tabstop_ranges = tabstop
4345 .iter()
4346 .flat_map(|tabstop_range| {
4347 let mut delta = 0_isize;
4348 insertion_ranges.iter().map(move |insertion_range| {
4349 let insertion_start = insertion_range.start as isize + delta;
4350 delta +=
4351 snippet.text.len() as isize - insertion_range.len() as isize;
4352
4353 let start = snapshot.anchor_before(
4354 (insertion_start + tabstop_range.start) as usize,
4355 );
4356 let end = snapshot
4357 .anchor_after((insertion_start + tabstop_range.end) as usize);
4358 start..end
4359 })
4360 })
4361 .collect::<Vec<_>>();
4362 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
4363 tabstop_ranges
4364 })
4365 .collect::<Vec<_>>()
4366 });
4367
4368 if let Some(tabstop) = tabstops.first() {
4369 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4370 s.select_ranges(tabstop.iter().cloned());
4371 });
4372 self.snippet_stack.push(SnippetState {
4373 active_index: 0,
4374 ranges: tabstops,
4375 });
4376
4377 // Check whether the just-entered snippet ends with an auto-closable bracket.
4378 if self.autoclose_regions.is_empty() {
4379 let snapshot = self.buffer.read(cx).snapshot(cx);
4380 for selection in &mut self.selections.all::<Point>(cx) {
4381 let selection_head = selection.head();
4382 let Some(scope) = snapshot.language_scope_at(selection_head) else {
4383 continue;
4384 };
4385
4386 let mut bracket_pair = None;
4387 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
4388 let prev_chars = snapshot
4389 .reversed_chars_at(selection_head)
4390 .collect::<String>();
4391 for (pair, enabled) in scope.brackets() {
4392 if enabled
4393 && pair.close
4394 && prev_chars.starts_with(pair.start.as_str())
4395 && next_chars.starts_with(pair.end.as_str())
4396 {
4397 bracket_pair = Some(pair.clone());
4398 break;
4399 }
4400 }
4401 if let Some(pair) = bracket_pair {
4402 let start = snapshot.anchor_after(selection_head);
4403 let end = snapshot.anchor_after(selection_head);
4404 self.autoclose_regions.push(AutocloseRegion {
4405 selection_id: selection.id,
4406 range: start..end,
4407 pair,
4408 });
4409 }
4410 }
4411 }
4412 }
4413 Ok(())
4414 }
4415
4416 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4417 self.move_to_snippet_tabstop(Bias::Right, cx)
4418 }
4419
4420 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
4421 self.move_to_snippet_tabstop(Bias::Left, cx)
4422 }
4423
4424 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
4425 if let Some(mut snippet) = self.snippet_stack.pop() {
4426 match bias {
4427 Bias::Left => {
4428 if snippet.active_index > 0 {
4429 snippet.active_index -= 1;
4430 } else {
4431 self.snippet_stack.push(snippet);
4432 return false;
4433 }
4434 }
4435 Bias::Right => {
4436 if snippet.active_index + 1 < snippet.ranges.len() {
4437 snippet.active_index += 1;
4438 } else {
4439 self.snippet_stack.push(snippet);
4440 return false;
4441 }
4442 }
4443 }
4444 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
4445 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
4446 s.select_anchor_ranges(current_ranges.iter().cloned())
4447 });
4448 // If snippet state is not at the last tabstop, push it back on the stack
4449 if snippet.active_index + 1 < snippet.ranges.len() {
4450 self.snippet_stack.push(snippet);
4451 }
4452 return true;
4453 }
4454 }
4455
4456 false
4457 }
4458
4459 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
4460 self.transact(cx, |this, cx| {
4461 this.select_all(&SelectAll, cx);
4462 this.insert("", cx);
4463 });
4464 }
4465
4466 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
4467 self.transact(cx, |this, cx| {
4468 this.select_autoclose_pair(cx);
4469 let mut selections = this.selections.all::<Point>(cx);
4470 if !this.selections.line_mode {
4471 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
4472 for selection in &mut selections {
4473 if selection.is_empty() {
4474 let old_head = selection.head();
4475 let mut new_head =
4476 movement::left(&display_map, old_head.to_display_point(&display_map))
4477 .to_point(&display_map);
4478 if let Some((buffer, line_buffer_range)) = display_map
4479 .buffer_snapshot
4480 .buffer_line_for_row(old_head.row)
4481 {
4482 let indent_size =
4483 buffer.indent_size_for_line(line_buffer_range.start.row);
4484 let indent_len = match indent_size.kind {
4485 IndentKind::Space => {
4486 buffer.settings_at(line_buffer_range.start, cx).tab_size
4487 }
4488 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
4489 };
4490 if old_head.column <= indent_size.len && old_head.column > 0 {
4491 let indent_len = indent_len.get();
4492 new_head = cmp::min(
4493 new_head,
4494 Point::new(
4495 old_head.row,
4496 ((old_head.column - 1) / indent_len) * indent_len,
4497 ),
4498 );
4499 }
4500 }
4501
4502 selection.set_head(new_head, SelectionGoal::None);
4503 }
4504 }
4505 }
4506
4507 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4508 this.insert("", cx);
4509 this.refresh_inline_completion(true, cx);
4510 });
4511 }
4512
4513 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
4514 self.transact(cx, |this, cx| {
4515 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4516 let line_mode = s.line_mode;
4517 s.move_with(|map, selection| {
4518 if selection.is_empty() && !line_mode {
4519 let cursor = movement::right(map, selection.head());
4520 selection.end = cursor;
4521 selection.reversed = true;
4522 selection.goal = SelectionGoal::None;
4523 }
4524 })
4525 });
4526 this.insert("", cx);
4527 this.refresh_inline_completion(true, cx);
4528 });
4529 }
4530
4531 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
4532 if self.move_to_prev_snippet_tabstop(cx) {
4533 return;
4534 }
4535
4536 self.outdent(&Outdent, cx);
4537 }
4538
4539 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
4540 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
4541 return;
4542 }
4543
4544 let mut selections = self.selections.all_adjusted(cx);
4545 let buffer = self.buffer.read(cx);
4546 let snapshot = buffer.snapshot(cx);
4547 let rows_iter = selections.iter().map(|s| s.head().row);
4548 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
4549
4550 let mut edits = Vec::new();
4551 let mut prev_edited_row = 0;
4552 let mut row_delta = 0;
4553 for selection in &mut selections {
4554 if selection.start.row != prev_edited_row {
4555 row_delta = 0;
4556 }
4557 prev_edited_row = selection.end.row;
4558
4559 // If the selection is non-empty, then increase the indentation of the selected lines.
4560 if !selection.is_empty() {
4561 row_delta =
4562 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4563 continue;
4564 }
4565
4566 // If the selection is empty and the cursor is in the leading whitespace before the
4567 // suggested indentation, then auto-indent the line.
4568 let cursor = selection.head();
4569 let current_indent = snapshot.indent_size_for_line(cursor.row);
4570 if let Some(suggested_indent) = suggested_indents.get(&cursor.row).copied() {
4571 if cursor.column < suggested_indent.len
4572 && cursor.column <= current_indent.len
4573 && current_indent.len <= suggested_indent.len
4574 {
4575 selection.start = Point::new(cursor.row, suggested_indent.len);
4576 selection.end = selection.start;
4577 if row_delta == 0 {
4578 edits.extend(Buffer::edit_for_indent_size_adjustment(
4579 cursor.row,
4580 current_indent,
4581 suggested_indent,
4582 ));
4583 row_delta = suggested_indent.len - current_indent.len;
4584 }
4585 continue;
4586 }
4587 }
4588
4589 // Accept copilot completion if there is only one selection and the cursor is not
4590 // in the leading whitespace.
4591 if self.selections.count() == 1
4592 && cursor.column >= current_indent.len
4593 && self.has_active_inline_completion(cx)
4594 {
4595 self.accept_inline_completion(cx);
4596 return;
4597 }
4598
4599 // Otherwise, insert a hard or soft tab.
4600 let settings = buffer.settings_at(cursor, cx);
4601 let tab_size = if settings.hard_tabs {
4602 IndentSize::tab()
4603 } else {
4604 let tab_size = settings.tab_size.get();
4605 let char_column = snapshot
4606 .text_for_range(Point::new(cursor.row, 0)..cursor)
4607 .flat_map(str::chars)
4608 .count()
4609 + row_delta as usize;
4610 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
4611 IndentSize::spaces(chars_to_next_tab_stop)
4612 };
4613 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
4614 selection.end = selection.start;
4615 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
4616 row_delta += tab_size.len;
4617 }
4618
4619 self.transact(cx, |this, cx| {
4620 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4621 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4622 this.refresh_inline_completion(true, cx);
4623 });
4624 }
4625
4626 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
4627 if self.read_only(cx) {
4628 return;
4629 }
4630 let mut selections = self.selections.all::<Point>(cx);
4631 let mut prev_edited_row = 0;
4632 let mut row_delta = 0;
4633 let mut edits = Vec::new();
4634 let buffer = self.buffer.read(cx);
4635 let snapshot = buffer.snapshot(cx);
4636 for selection in &mut selections {
4637 if selection.start.row != prev_edited_row {
4638 row_delta = 0;
4639 }
4640 prev_edited_row = selection.end.row;
4641
4642 row_delta =
4643 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
4644 }
4645
4646 self.transact(cx, |this, cx| {
4647 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
4648 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4649 });
4650 }
4651
4652 fn indent_selection(
4653 buffer: &MultiBuffer,
4654 snapshot: &MultiBufferSnapshot,
4655 selection: &mut Selection<Point>,
4656 edits: &mut Vec<(Range<Point>, String)>,
4657 delta_for_start_row: u32,
4658 cx: &AppContext,
4659 ) -> u32 {
4660 let settings = buffer.settings_at(selection.start, cx);
4661 let tab_size = settings.tab_size.get();
4662 let indent_kind = if settings.hard_tabs {
4663 IndentKind::Tab
4664 } else {
4665 IndentKind::Space
4666 };
4667 let mut start_row = selection.start.row;
4668 let mut end_row = selection.end.row + 1;
4669
4670 // If a selection ends at the beginning of a line, don't indent
4671 // that last line.
4672 if selection.end.column == 0 && selection.end.row > selection.start.row {
4673 end_row -= 1;
4674 }
4675
4676 // Avoid re-indenting a row that has already been indented by a
4677 // previous selection, but still update this selection's column
4678 // to reflect that indentation.
4679 if delta_for_start_row > 0 {
4680 start_row += 1;
4681 selection.start.column += delta_for_start_row;
4682 if selection.end.row == selection.start.row {
4683 selection.end.column += delta_for_start_row;
4684 }
4685 }
4686
4687 let mut delta_for_end_row = 0;
4688 let has_multiple_rows = start_row + 1 != end_row;
4689 for row in start_row..end_row {
4690 let current_indent = snapshot.indent_size_for_line(row);
4691 let indent_delta = match (current_indent.kind, indent_kind) {
4692 (IndentKind::Space, IndentKind::Space) => {
4693 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
4694 IndentSize::spaces(columns_to_next_tab_stop)
4695 }
4696 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
4697 (_, IndentKind::Tab) => IndentSize::tab(),
4698 };
4699
4700 let start = if has_multiple_rows || current_indent.len < selection.start.column {
4701 0
4702 } else {
4703 selection.start.column
4704 };
4705 let row_start = Point::new(row, start);
4706 edits.push((
4707 row_start..row_start,
4708 indent_delta.chars().collect::<String>(),
4709 ));
4710
4711 // Update this selection's endpoints to reflect the indentation.
4712 if row == selection.start.row {
4713 selection.start.column += indent_delta.len;
4714 }
4715 if row == selection.end.row {
4716 selection.end.column += indent_delta.len;
4717 delta_for_end_row = indent_delta.len;
4718 }
4719 }
4720
4721 if selection.start.row == selection.end.row {
4722 delta_for_start_row + delta_for_end_row
4723 } else {
4724 delta_for_end_row
4725 }
4726 }
4727
4728 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
4729 if self.read_only(cx) {
4730 return;
4731 }
4732 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4733 let selections = self.selections.all::<Point>(cx);
4734 let mut deletion_ranges = Vec::new();
4735 let mut last_outdent = None;
4736 {
4737 let buffer = self.buffer.read(cx);
4738 let snapshot = buffer.snapshot(cx);
4739 for selection in &selections {
4740 let settings = buffer.settings_at(selection.start, cx);
4741 let tab_size = settings.tab_size.get();
4742 let mut rows = selection.spanned_rows(false, &display_map);
4743
4744 // Avoid re-outdenting a row that has already been outdented by a
4745 // previous selection.
4746 if let Some(last_row) = last_outdent {
4747 if last_row == rows.start {
4748 rows.start += 1;
4749 }
4750 }
4751 let has_multiple_rows = rows.len() > 1;
4752 for row in rows {
4753 let indent_size = snapshot.indent_size_for_line(row);
4754 if indent_size.len > 0 {
4755 let deletion_len = match indent_size.kind {
4756 IndentKind::Space => {
4757 let columns_to_prev_tab_stop = indent_size.len % tab_size;
4758 if columns_to_prev_tab_stop == 0 {
4759 tab_size
4760 } else {
4761 columns_to_prev_tab_stop
4762 }
4763 }
4764 IndentKind::Tab => 1,
4765 };
4766 let start = if has_multiple_rows
4767 || deletion_len > selection.start.column
4768 || indent_size.len < selection.start.column
4769 {
4770 0
4771 } else {
4772 selection.start.column - deletion_len
4773 };
4774 deletion_ranges
4775 .push(Point::new(row, start)..Point::new(row, start + deletion_len));
4776 last_outdent = Some(row);
4777 }
4778 }
4779 }
4780 }
4781
4782 self.transact(cx, |this, cx| {
4783 this.buffer.update(cx, |buffer, cx| {
4784 let empty_str: Arc<str> = "".into();
4785 buffer.edit(
4786 deletion_ranges
4787 .into_iter()
4788 .map(|range| (range, empty_str.clone())),
4789 None,
4790 cx,
4791 );
4792 });
4793 let selections = this.selections.all::<usize>(cx);
4794 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
4795 });
4796 }
4797
4798 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
4799 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
4800 let selections = self.selections.all::<Point>(cx);
4801
4802 let mut new_cursors = Vec::new();
4803 let mut edit_ranges = Vec::new();
4804 let mut selections = selections.iter().peekable();
4805 while let Some(selection) = selections.next() {
4806 let mut rows = selection.spanned_rows(false, &display_map);
4807 let goal_display_column = selection.head().to_display_point(&display_map).column();
4808
4809 // Accumulate contiguous regions of rows that we want to delete.
4810 while let Some(next_selection) = selections.peek() {
4811 let next_rows = next_selection.spanned_rows(false, &display_map);
4812 if next_rows.start <= rows.end {
4813 rows.end = next_rows.end;
4814 selections.next().unwrap();
4815 } else {
4816 break;
4817 }
4818 }
4819
4820 let buffer = &display_map.buffer_snapshot;
4821 let mut edit_start = Point::new(rows.start, 0).to_offset(buffer);
4822 let edit_end;
4823 let cursor_buffer_row;
4824 if buffer.max_point().row >= rows.end {
4825 // If there's a line after the range, delete the \n from the end of the row range
4826 // and position the cursor on the next line.
4827 edit_end = Point::new(rows.end, 0).to_offset(buffer);
4828 cursor_buffer_row = rows.end;
4829 } else {
4830 // If there isn't a line after the range, delete the \n from the line before the
4831 // start of the row range and position the cursor there.
4832 edit_start = edit_start.saturating_sub(1);
4833 edit_end = buffer.len();
4834 cursor_buffer_row = rows.start.saturating_sub(1);
4835 }
4836
4837 let mut cursor = Point::new(cursor_buffer_row, 0).to_display_point(&display_map);
4838 *cursor.column_mut() =
4839 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
4840
4841 new_cursors.push((
4842 selection.id,
4843 buffer.anchor_after(cursor.to_point(&display_map)),
4844 ));
4845 edit_ranges.push(edit_start..edit_end);
4846 }
4847
4848 self.transact(cx, |this, cx| {
4849 let buffer = this.buffer.update(cx, |buffer, cx| {
4850 let empty_str: Arc<str> = "".into();
4851 buffer.edit(
4852 edit_ranges
4853 .into_iter()
4854 .map(|range| (range, empty_str.clone())),
4855 None,
4856 cx,
4857 );
4858 buffer.snapshot(cx)
4859 });
4860 let new_selections = new_cursors
4861 .into_iter()
4862 .map(|(id, cursor)| {
4863 let cursor = cursor.to_point(&buffer);
4864 Selection {
4865 id,
4866 start: cursor,
4867 end: cursor,
4868 reversed: false,
4869 goal: SelectionGoal::None,
4870 }
4871 })
4872 .collect();
4873
4874 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4875 s.select(new_selections);
4876 });
4877 });
4878 }
4879
4880 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
4881 if self.read_only(cx) {
4882 return;
4883 }
4884 let mut row_ranges = Vec::<Range<u32>>::new();
4885 for selection in self.selections.all::<Point>(cx) {
4886 let start = selection.start.row;
4887 let end = if selection.start.row == selection.end.row {
4888 selection.start.row + 1
4889 } else {
4890 selection.end.row
4891 };
4892
4893 if let Some(last_row_range) = row_ranges.last_mut() {
4894 if start <= last_row_range.end {
4895 last_row_range.end = end;
4896 continue;
4897 }
4898 }
4899 row_ranges.push(start..end);
4900 }
4901
4902 let snapshot = self.buffer.read(cx).snapshot(cx);
4903 let mut cursor_positions = Vec::new();
4904 for row_range in &row_ranges {
4905 let anchor = snapshot.anchor_before(Point::new(
4906 row_range.end - 1,
4907 snapshot.line_len(row_range.end - 1),
4908 ));
4909 cursor_positions.push(anchor..anchor);
4910 }
4911
4912 self.transact(cx, |this, cx| {
4913 for row_range in row_ranges.into_iter().rev() {
4914 for row in row_range.rev() {
4915 let end_of_line = Point::new(row, snapshot.line_len(row));
4916 let indent = snapshot.indent_size_for_line(row + 1);
4917 let start_of_next_line = Point::new(row + 1, indent.len);
4918
4919 let replace = if snapshot.line_len(row + 1) > indent.len {
4920 " "
4921 } else {
4922 ""
4923 };
4924
4925 this.buffer.update(cx, |buffer, cx| {
4926 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
4927 });
4928 }
4929 }
4930
4931 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4932 s.select_anchor_ranges(cursor_positions)
4933 });
4934 });
4935 }
4936
4937 pub fn sort_lines_case_sensitive(
4938 &mut self,
4939 _: &SortLinesCaseSensitive,
4940 cx: &mut ViewContext<Self>,
4941 ) {
4942 self.manipulate_lines(cx, |lines| lines.sort())
4943 }
4944
4945 pub fn sort_lines_case_insensitive(
4946 &mut self,
4947 _: &SortLinesCaseInsensitive,
4948 cx: &mut ViewContext<Self>,
4949 ) {
4950 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
4951 }
4952
4953 pub fn unique_lines_case_insensitive(
4954 &mut self,
4955 _: &UniqueLinesCaseInsensitive,
4956 cx: &mut ViewContext<Self>,
4957 ) {
4958 self.manipulate_lines(cx, |lines| {
4959 let mut seen = HashSet::default();
4960 lines.retain(|line| seen.insert(line.to_lowercase()));
4961 })
4962 }
4963
4964 pub fn unique_lines_case_sensitive(
4965 &mut self,
4966 _: &UniqueLinesCaseSensitive,
4967 cx: &mut ViewContext<Self>,
4968 ) {
4969 self.manipulate_lines(cx, |lines| {
4970 let mut seen = HashSet::default();
4971 lines.retain(|line| seen.insert(*line));
4972 })
4973 }
4974
4975 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
4976 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
4977 if !revert_changes.is_empty() {
4978 self.transact(cx, |editor, cx| {
4979 editor.buffer().update(cx, |multi_buffer, cx| {
4980 for (buffer_id, changes) in revert_changes {
4981 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
4982 buffer.update(cx, |buffer, cx| {
4983 buffer.edit(
4984 changes.into_iter().map(|(range, text)| {
4985 (range, text.to_string().map(Arc::<str>::from))
4986 }),
4987 None,
4988 cx,
4989 );
4990 });
4991 }
4992 }
4993 });
4994 editor.change_selections(None, cx, |selections| selections.refresh());
4995 });
4996 }
4997 }
4998
4999 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5000 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5001 let project_path = buffer.read(cx).project_path(cx)?;
5002 let project = self.project.as_ref()?.read(cx);
5003 let entry = project.entry_for_path(&project_path, cx)?;
5004 let abs_path = project.absolute_path(&project_path, cx)?;
5005 let parent = if entry.is_symlink {
5006 abs_path.canonicalize().ok()?
5007 } else {
5008 abs_path
5009 }
5010 .parent()?
5011 .to_path_buf();
5012 Some(parent)
5013 }) {
5014 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5015 }
5016 }
5017
5018 fn gather_revert_changes(
5019 &mut self,
5020 selections: &[Selection<Anchor>],
5021 cx: &mut ViewContext<'_, Editor>,
5022 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5023 let mut revert_changes = HashMap::default();
5024 self.buffer.update(cx, |multi_buffer, cx| {
5025 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5026 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5027 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5028 }
5029 });
5030 revert_changes
5031 }
5032
5033 fn prepare_revert_change(
5034 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5035 multi_buffer: &MultiBuffer,
5036 hunk: &DiffHunk<u32>,
5037 cx: &mut AppContext,
5038 ) -> Option<()> {
5039 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5040 let buffer = buffer.read(cx);
5041 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5042 let buffer_snapshot = buffer.snapshot();
5043 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5044 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5045 probe
5046 .0
5047 .start
5048 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5049 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5050 }) {
5051 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5052 Some(())
5053 } else {
5054 None
5055 }
5056 }
5057
5058 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5059 self.manipulate_lines(cx, |lines| lines.reverse())
5060 }
5061
5062 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5063 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5064 }
5065
5066 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5067 where
5068 Fn: FnMut(&mut Vec<&str>),
5069 {
5070 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5071 let buffer = self.buffer.read(cx).snapshot(cx);
5072
5073 let mut edits = Vec::new();
5074
5075 let selections = self.selections.all::<Point>(cx);
5076 let mut selections = selections.iter().peekable();
5077 let mut contiguous_row_selections = Vec::new();
5078 let mut new_selections = Vec::new();
5079 let mut added_lines = 0;
5080 let mut removed_lines = 0;
5081
5082 while let Some(selection) = selections.next() {
5083 let (start_row, end_row) = consume_contiguous_rows(
5084 &mut contiguous_row_selections,
5085 selection,
5086 &display_map,
5087 &mut selections,
5088 );
5089
5090 let start_point = Point::new(start_row, 0);
5091 let end_point = Point::new(end_row - 1, buffer.line_len(end_row - 1));
5092 let text = buffer
5093 .text_for_range(start_point..end_point)
5094 .collect::<String>();
5095
5096 let mut lines = text.split('\n').collect_vec();
5097
5098 let lines_before = lines.len();
5099 callback(&mut lines);
5100 let lines_after = lines.len();
5101
5102 edits.push((start_point..end_point, lines.join("\n")));
5103
5104 // Selections must change based on added and removed line count
5105 let start_row = start_point.row + added_lines as u32 - removed_lines as u32;
5106 let end_row = start_row + lines_after.saturating_sub(1) as u32;
5107 new_selections.push(Selection {
5108 id: selection.id,
5109 start: start_row,
5110 end: end_row,
5111 goal: SelectionGoal::None,
5112 reversed: selection.reversed,
5113 });
5114
5115 if lines_after > lines_before {
5116 added_lines += lines_after - lines_before;
5117 } else if lines_before > lines_after {
5118 removed_lines += lines_before - lines_after;
5119 }
5120 }
5121
5122 self.transact(cx, |this, cx| {
5123 let buffer = this.buffer.update(cx, |buffer, cx| {
5124 buffer.edit(edits, None, cx);
5125 buffer.snapshot(cx)
5126 });
5127
5128 // Recalculate offsets on newly edited buffer
5129 let new_selections = new_selections
5130 .iter()
5131 .map(|s| {
5132 let start_point = Point::new(s.start, 0);
5133 let end_point = Point::new(s.end, buffer.line_len(s.end));
5134 Selection {
5135 id: s.id,
5136 start: buffer.point_to_offset(start_point),
5137 end: buffer.point_to_offset(end_point),
5138 goal: s.goal,
5139 reversed: s.reversed,
5140 }
5141 })
5142 .collect();
5143
5144 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5145 s.select(new_selections);
5146 });
5147
5148 this.request_autoscroll(Autoscroll::fit(), cx);
5149 });
5150 }
5151
5152 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5153 self.manipulate_text(cx, |text| text.to_uppercase())
5154 }
5155
5156 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5157 self.manipulate_text(cx, |text| text.to_lowercase())
5158 }
5159
5160 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5161 self.manipulate_text(cx, |text| {
5162 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5163 // https://github.com/rutrum/convert-case/issues/16
5164 text.split('\n')
5165 .map(|line| line.to_case(Case::Title))
5166 .join("\n")
5167 })
5168 }
5169
5170 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5171 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5172 }
5173
5174 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5175 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5176 }
5177
5178 pub fn convert_to_upper_camel_case(
5179 &mut self,
5180 _: &ConvertToUpperCamelCase,
5181 cx: &mut ViewContext<Self>,
5182 ) {
5183 self.manipulate_text(cx, |text| {
5184 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5185 // https://github.com/rutrum/convert-case/issues/16
5186 text.split('\n')
5187 .map(|line| line.to_case(Case::UpperCamel))
5188 .join("\n")
5189 })
5190 }
5191
5192 pub fn convert_to_lower_camel_case(
5193 &mut self,
5194 _: &ConvertToLowerCamelCase,
5195 cx: &mut ViewContext<Self>,
5196 ) {
5197 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5198 }
5199
5200 pub fn convert_to_opposite_case(
5201 &mut self,
5202 _: &ConvertToOppositeCase,
5203 cx: &mut ViewContext<Self>,
5204 ) {
5205 self.manipulate_text(cx, |text| {
5206 text.chars()
5207 .fold(String::with_capacity(text.len()), |mut t, c| {
5208 if c.is_uppercase() {
5209 t.extend(c.to_lowercase());
5210 } else {
5211 t.extend(c.to_uppercase());
5212 }
5213 t
5214 })
5215 })
5216 }
5217
5218 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5219 where
5220 Fn: FnMut(&str) -> String,
5221 {
5222 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5223 let buffer = self.buffer.read(cx).snapshot(cx);
5224
5225 let mut new_selections = Vec::new();
5226 let mut edits = Vec::new();
5227 let mut selection_adjustment = 0i32;
5228
5229 for selection in self.selections.all::<usize>(cx) {
5230 let selection_is_empty = selection.is_empty();
5231
5232 let (start, end) = if selection_is_empty {
5233 let word_range = movement::surrounding_word(
5234 &display_map,
5235 selection.start.to_display_point(&display_map),
5236 );
5237 let start = word_range.start.to_offset(&display_map, Bias::Left);
5238 let end = word_range.end.to_offset(&display_map, Bias::Left);
5239 (start, end)
5240 } else {
5241 (selection.start, selection.end)
5242 };
5243
5244 let text = buffer.text_for_range(start..end).collect::<String>();
5245 let old_length = text.len() as i32;
5246 let text = callback(&text);
5247
5248 new_selections.push(Selection {
5249 start: (start as i32 - selection_adjustment) as usize,
5250 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5251 goal: SelectionGoal::None,
5252 ..selection
5253 });
5254
5255 selection_adjustment += old_length - text.len() as i32;
5256
5257 edits.push((start..end, text));
5258 }
5259
5260 self.transact(cx, |this, cx| {
5261 this.buffer.update(cx, |buffer, cx| {
5262 buffer.edit(edits, None, cx);
5263 });
5264
5265 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5266 s.select(new_selections);
5267 });
5268
5269 this.request_autoscroll(Autoscroll::fit(), cx);
5270 });
5271 }
5272
5273 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5274 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5275 let buffer = &display_map.buffer_snapshot;
5276 let selections = self.selections.all::<Point>(cx);
5277
5278 let mut edits = Vec::new();
5279 let mut selections_iter = selections.iter().peekable();
5280 while let Some(selection) = selections_iter.next() {
5281 // Avoid duplicating the same lines twice.
5282 let mut rows = selection.spanned_rows(false, &display_map);
5283
5284 while let Some(next_selection) = selections_iter.peek() {
5285 let next_rows = next_selection.spanned_rows(false, &display_map);
5286 if next_rows.start < rows.end {
5287 rows.end = next_rows.end;
5288 selections_iter.next().unwrap();
5289 } else {
5290 break;
5291 }
5292 }
5293
5294 // Copy the text from the selected row region and splice it either at the start
5295 // or end of the region.
5296 let start = Point::new(rows.start, 0);
5297 let end = Point::new(rows.end - 1, buffer.line_len(rows.end - 1));
5298 let text = buffer
5299 .text_for_range(start..end)
5300 .chain(Some("\n"))
5301 .collect::<String>();
5302 let insert_location = if upwards {
5303 Point::new(rows.end, 0)
5304 } else {
5305 start
5306 };
5307 edits.push((insert_location..insert_location, text));
5308 }
5309
5310 self.transact(cx, |this, cx| {
5311 this.buffer.update(cx, |buffer, cx| {
5312 buffer.edit(edits, None, cx);
5313 });
5314
5315 this.request_autoscroll(Autoscroll::fit(), cx);
5316 });
5317 }
5318
5319 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
5320 self.duplicate_line(true, cx);
5321 }
5322
5323 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
5324 self.duplicate_line(false, cx);
5325 }
5326
5327 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
5328 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5329 let buffer = self.buffer.read(cx).snapshot(cx);
5330
5331 let mut edits = Vec::new();
5332 let mut unfold_ranges = Vec::new();
5333 let mut refold_ranges = Vec::new();
5334
5335 let selections = self.selections.all::<Point>(cx);
5336 let mut selections = selections.iter().peekable();
5337 let mut contiguous_row_selections = Vec::new();
5338 let mut new_selections = Vec::new();
5339
5340 while let Some(selection) = selections.next() {
5341 // Find all the selections that span a contiguous row range
5342 let (start_row, end_row) = consume_contiguous_rows(
5343 &mut contiguous_row_selections,
5344 selection,
5345 &display_map,
5346 &mut selections,
5347 );
5348
5349 // Move the text spanned by the row range to be before the line preceding the row range
5350 if start_row > 0 {
5351 let range_to_move = Point::new(start_row - 1, buffer.line_len(start_row - 1))
5352 ..Point::new(end_row - 1, buffer.line_len(end_row - 1));
5353 let insertion_point = display_map
5354 .prev_line_boundary(Point::new(start_row - 1, 0))
5355 .0;
5356
5357 // Don't move lines across excerpts
5358 if buffer
5359 .excerpt_boundaries_in_range((
5360 Bound::Excluded(insertion_point),
5361 Bound::Included(range_to_move.end),
5362 ))
5363 .next()
5364 .is_none()
5365 {
5366 let text = buffer
5367 .text_for_range(range_to_move.clone())
5368 .flat_map(|s| s.chars())
5369 .skip(1)
5370 .chain(['\n'])
5371 .collect::<String>();
5372
5373 edits.push((
5374 buffer.anchor_after(range_to_move.start)
5375 ..buffer.anchor_before(range_to_move.end),
5376 String::new(),
5377 ));
5378 let insertion_anchor = buffer.anchor_after(insertion_point);
5379 edits.push((insertion_anchor..insertion_anchor, text));
5380
5381 let row_delta = range_to_move.start.row - insertion_point.row + 1;
5382
5383 // Move selections up
5384 new_selections.extend(contiguous_row_selections.drain(..).map(
5385 |mut selection| {
5386 selection.start.row -= row_delta;
5387 selection.end.row -= row_delta;
5388 selection
5389 },
5390 ));
5391
5392 // Move folds up
5393 unfold_ranges.push(range_to_move.clone());
5394 for fold in display_map.folds_in_range(
5395 buffer.anchor_before(range_to_move.start)
5396 ..buffer.anchor_after(range_to_move.end),
5397 ) {
5398 let mut start = fold.range.start.to_point(&buffer);
5399 let mut end = fold.range.end.to_point(&buffer);
5400 start.row -= row_delta;
5401 end.row -= row_delta;
5402 refold_ranges.push(start..end);
5403 }
5404 }
5405 }
5406
5407 // If we didn't move line(s), preserve the existing selections
5408 new_selections.append(&mut contiguous_row_selections);
5409 }
5410
5411 self.transact(cx, |this, cx| {
5412 this.unfold_ranges(unfold_ranges, true, true, cx);
5413 this.buffer.update(cx, |buffer, cx| {
5414 for (range, text) in edits {
5415 buffer.edit([(range, text)], None, cx);
5416 }
5417 });
5418 this.fold_ranges(refold_ranges, true, cx);
5419 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5420 s.select(new_selections);
5421 })
5422 });
5423 }
5424
5425 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
5426 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5427 let buffer = self.buffer.read(cx).snapshot(cx);
5428
5429 let mut edits = Vec::new();
5430 let mut unfold_ranges = Vec::new();
5431 let mut refold_ranges = Vec::new();
5432
5433 let selections = self.selections.all::<Point>(cx);
5434 let mut selections = selections.iter().peekable();
5435 let mut contiguous_row_selections = Vec::new();
5436 let mut new_selections = Vec::new();
5437
5438 while let Some(selection) = selections.next() {
5439 // Find all the selections that span a contiguous row range
5440 let (start_row, end_row) = consume_contiguous_rows(
5441 &mut contiguous_row_selections,
5442 selection,
5443 &display_map,
5444 &mut selections,
5445 );
5446
5447 // Move the text spanned by the row range to be after the last line of the row range
5448 if end_row <= buffer.max_point().row {
5449 let range_to_move = Point::new(start_row, 0)..Point::new(end_row, 0);
5450 let insertion_point = display_map.next_line_boundary(Point::new(end_row, 0)).0;
5451
5452 // Don't move lines across excerpt boundaries
5453 if buffer
5454 .excerpt_boundaries_in_range((
5455 Bound::Excluded(range_to_move.start),
5456 Bound::Included(insertion_point),
5457 ))
5458 .next()
5459 .is_none()
5460 {
5461 let mut text = String::from("\n");
5462 text.extend(buffer.text_for_range(range_to_move.clone()));
5463 text.pop(); // Drop trailing newline
5464 edits.push((
5465 buffer.anchor_after(range_to_move.start)
5466 ..buffer.anchor_before(range_to_move.end),
5467 String::new(),
5468 ));
5469 let insertion_anchor = buffer.anchor_after(insertion_point);
5470 edits.push((insertion_anchor..insertion_anchor, text));
5471
5472 let row_delta = insertion_point.row - range_to_move.end.row + 1;
5473
5474 // Move selections down
5475 new_selections.extend(contiguous_row_selections.drain(..).map(
5476 |mut selection| {
5477 selection.start.row += row_delta;
5478 selection.end.row += row_delta;
5479 selection
5480 },
5481 ));
5482
5483 // Move folds down
5484 unfold_ranges.push(range_to_move.clone());
5485 for fold in display_map.folds_in_range(
5486 buffer.anchor_before(range_to_move.start)
5487 ..buffer.anchor_after(range_to_move.end),
5488 ) {
5489 let mut start = fold.range.start.to_point(&buffer);
5490 let mut end = fold.range.end.to_point(&buffer);
5491 start.row += row_delta;
5492 end.row += row_delta;
5493 refold_ranges.push(start..end);
5494 }
5495 }
5496 }
5497
5498 // If we didn't move line(s), preserve the existing selections
5499 new_selections.append(&mut contiguous_row_selections);
5500 }
5501
5502 self.transact(cx, |this, cx| {
5503 this.unfold_ranges(unfold_ranges, true, true, cx);
5504 this.buffer.update(cx, |buffer, cx| {
5505 for (range, text) in edits {
5506 buffer.edit([(range, text)], None, cx);
5507 }
5508 });
5509 this.fold_ranges(refold_ranges, true, cx);
5510 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
5511 });
5512 }
5513
5514 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
5515 let text_layout_details = &self.text_layout_details(cx);
5516 self.transact(cx, |this, cx| {
5517 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5518 let mut edits: Vec<(Range<usize>, String)> = Default::default();
5519 let line_mode = s.line_mode;
5520 s.move_with(|display_map, selection| {
5521 if !selection.is_empty() || line_mode {
5522 return;
5523 }
5524
5525 let mut head = selection.head();
5526 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
5527 if head.column() == display_map.line_len(head.row()) {
5528 transpose_offset = display_map
5529 .buffer_snapshot
5530 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5531 }
5532
5533 if transpose_offset == 0 {
5534 return;
5535 }
5536
5537 *head.column_mut() += 1;
5538 head = display_map.clip_point(head, Bias::Right);
5539 let goal = SelectionGoal::HorizontalPosition(
5540 display_map
5541 .x_for_display_point(head, &text_layout_details)
5542 .into(),
5543 );
5544 selection.collapse_to(head, goal);
5545
5546 let transpose_start = display_map
5547 .buffer_snapshot
5548 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
5549 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
5550 let transpose_end = display_map
5551 .buffer_snapshot
5552 .clip_offset(transpose_offset + 1, Bias::Right);
5553 if let Some(ch) =
5554 display_map.buffer_snapshot.chars_at(transpose_start).next()
5555 {
5556 edits.push((transpose_start..transpose_offset, String::new()));
5557 edits.push((transpose_end..transpose_end, ch.to_string()));
5558 }
5559 }
5560 });
5561 edits
5562 });
5563 this.buffer
5564 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
5565 let selections = this.selections.all::<usize>(cx);
5566 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5567 s.select(selections);
5568 });
5569 });
5570 }
5571
5572 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
5573 let mut text = String::new();
5574 let buffer = self.buffer.read(cx).snapshot(cx);
5575 let mut selections = self.selections.all::<Point>(cx);
5576 let mut clipboard_selections = Vec::with_capacity(selections.len());
5577 {
5578 let max_point = buffer.max_point();
5579 let mut is_first = true;
5580 for selection in &mut selections {
5581 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5582 if is_entire_line {
5583 selection.start = Point::new(selection.start.row, 0);
5584 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
5585 selection.goal = SelectionGoal::None;
5586 }
5587 if is_first {
5588 is_first = false;
5589 } else {
5590 text += "\n";
5591 }
5592 let mut len = 0;
5593 for chunk in buffer.text_for_range(selection.start..selection.end) {
5594 text.push_str(chunk);
5595 len += chunk.len();
5596 }
5597 clipboard_selections.push(ClipboardSelection {
5598 len,
5599 is_entire_line,
5600 first_line_indent: buffer.indent_size_for_line(selection.start.row).len,
5601 });
5602 }
5603 }
5604
5605 self.transact(cx, |this, cx| {
5606 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5607 s.select(selections);
5608 });
5609 this.insert("", cx);
5610 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5611 });
5612 }
5613
5614 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
5615 let selections = self.selections.all::<Point>(cx);
5616 let buffer = self.buffer.read(cx).read(cx);
5617 let mut text = String::new();
5618
5619 let mut clipboard_selections = Vec::with_capacity(selections.len());
5620 {
5621 let max_point = buffer.max_point();
5622 let mut is_first = true;
5623 for selection in selections.iter() {
5624 let mut start = selection.start;
5625 let mut end = selection.end;
5626 let is_entire_line = selection.is_empty() || self.selections.line_mode;
5627 if is_entire_line {
5628 start = Point::new(start.row, 0);
5629 end = cmp::min(max_point, Point::new(end.row + 1, 0));
5630 }
5631 if is_first {
5632 is_first = false;
5633 } else {
5634 text += "\n";
5635 }
5636 let mut len = 0;
5637 for chunk in buffer.text_for_range(start..end) {
5638 text.push_str(chunk);
5639 len += chunk.len();
5640 }
5641 clipboard_selections.push(ClipboardSelection {
5642 len,
5643 is_entire_line,
5644 first_line_indent: buffer.indent_size_for_line(start.row).len,
5645 });
5646 }
5647 }
5648
5649 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
5650 }
5651
5652 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
5653 if self.read_only(cx) {
5654 return;
5655 }
5656
5657 self.transact(cx, |this, cx| {
5658 if let Some(item) = cx.read_from_clipboard() {
5659 let clipboard_text = Cow::Borrowed(item.text());
5660 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
5661 let old_selections = this.selections.all::<usize>(cx);
5662 let all_selections_were_entire_line =
5663 clipboard_selections.iter().all(|s| s.is_entire_line);
5664 let first_selection_indent_column =
5665 clipboard_selections.first().map(|s| s.first_line_indent);
5666 if clipboard_selections.len() != old_selections.len() {
5667 clipboard_selections.drain(..);
5668 }
5669
5670 this.buffer.update(cx, |buffer, cx| {
5671 let snapshot = buffer.read(cx);
5672 let mut start_offset = 0;
5673 let mut edits = Vec::new();
5674 let mut original_indent_columns = Vec::new();
5675 let line_mode = this.selections.line_mode;
5676 for (ix, selection) in old_selections.iter().enumerate() {
5677 let to_insert;
5678 let entire_line;
5679 let original_indent_column;
5680 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
5681 let end_offset = start_offset + clipboard_selection.len;
5682 to_insert = &clipboard_text[start_offset..end_offset];
5683 entire_line = clipboard_selection.is_entire_line;
5684 start_offset = end_offset + 1;
5685 original_indent_column =
5686 Some(clipboard_selection.first_line_indent);
5687 } else {
5688 to_insert = clipboard_text.as_str();
5689 entire_line = all_selections_were_entire_line;
5690 original_indent_column = first_selection_indent_column
5691 }
5692
5693 // If the corresponding selection was empty when this slice of the
5694 // clipboard text was written, then the entire line containing the
5695 // selection was copied. If this selection is also currently empty,
5696 // then paste the line before the current line of the buffer.
5697 let range = if selection.is_empty() && !line_mode && entire_line {
5698 let column = selection.start.to_point(&snapshot).column as usize;
5699 let line_start = selection.start - column;
5700 line_start..line_start
5701 } else {
5702 selection.range()
5703 };
5704
5705 edits.push((range, to_insert));
5706 original_indent_columns.extend(original_indent_column);
5707 }
5708 drop(snapshot);
5709
5710 buffer.edit(
5711 edits,
5712 Some(AutoindentMode::Block {
5713 original_indent_columns,
5714 }),
5715 cx,
5716 );
5717 });
5718
5719 let selections = this.selections.all::<usize>(cx);
5720 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5721 } else {
5722 this.insert(&clipboard_text, cx);
5723 }
5724 }
5725 });
5726 }
5727
5728 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
5729 if self.read_only(cx) {
5730 return;
5731 }
5732
5733 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
5734 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
5735 self.change_selections(None, cx, |s| {
5736 s.select_anchors(selections.to_vec());
5737 });
5738 }
5739 self.request_autoscroll(Autoscroll::fit(), cx);
5740 self.unmark_text(cx);
5741 self.refresh_inline_completion(true, cx);
5742 cx.emit(EditorEvent::Edited);
5743 cx.emit(EditorEvent::TransactionUndone {
5744 transaction_id: tx_id,
5745 });
5746 }
5747 }
5748
5749 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
5750 if self.read_only(cx) {
5751 return;
5752 }
5753
5754 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
5755 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
5756 {
5757 self.change_selections(None, cx, |s| {
5758 s.select_anchors(selections.to_vec());
5759 });
5760 }
5761 self.request_autoscroll(Autoscroll::fit(), cx);
5762 self.unmark_text(cx);
5763 self.refresh_inline_completion(true, cx);
5764 cx.emit(EditorEvent::Edited);
5765 }
5766 }
5767
5768 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
5769 self.buffer
5770 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
5771 }
5772
5773 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
5774 self.buffer
5775 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
5776 }
5777
5778 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
5779 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5780 let line_mode = s.line_mode;
5781 s.move_with(|map, selection| {
5782 let cursor = if selection.is_empty() && !line_mode {
5783 movement::left(map, selection.start)
5784 } else {
5785 selection.start
5786 };
5787 selection.collapse_to(cursor, SelectionGoal::None);
5788 });
5789 })
5790 }
5791
5792 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
5793 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5794 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
5795 })
5796 }
5797
5798 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
5799 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5800 let line_mode = s.line_mode;
5801 s.move_with(|map, selection| {
5802 let cursor = if selection.is_empty() && !line_mode {
5803 movement::right(map, selection.end)
5804 } else {
5805 selection.end
5806 };
5807 selection.collapse_to(cursor, SelectionGoal::None)
5808 });
5809 })
5810 }
5811
5812 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
5813 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5814 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
5815 })
5816 }
5817
5818 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
5819 if self.take_rename(true, cx).is_some() {
5820 return;
5821 }
5822
5823 if matches!(self.mode, EditorMode::SingleLine) {
5824 cx.propagate();
5825 return;
5826 }
5827
5828 let text_layout_details = &self.text_layout_details(cx);
5829
5830 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5831 let line_mode = s.line_mode;
5832 s.move_with(|map, selection| {
5833 if !selection.is_empty() && !line_mode {
5834 selection.goal = SelectionGoal::None;
5835 }
5836 let (cursor, goal) = movement::up(
5837 map,
5838 selection.start,
5839 selection.goal,
5840 false,
5841 &text_layout_details,
5842 );
5843 selection.collapse_to(cursor, goal);
5844 });
5845 })
5846 }
5847
5848 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
5849 if self.take_rename(true, cx).is_some() {
5850 return;
5851 }
5852
5853 if matches!(self.mode, EditorMode::SingleLine) {
5854 cx.propagate();
5855 return;
5856 }
5857
5858 let text_layout_details = &self.text_layout_details(cx);
5859
5860 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5861 let line_mode = s.line_mode;
5862 s.move_with(|map, selection| {
5863 if !selection.is_empty() && !line_mode {
5864 selection.goal = SelectionGoal::None;
5865 }
5866 let (cursor, goal) = movement::up_by_rows(
5867 map,
5868 selection.start,
5869 action.lines,
5870 selection.goal,
5871 false,
5872 &text_layout_details,
5873 );
5874 selection.collapse_to(cursor, goal);
5875 });
5876 })
5877 }
5878
5879 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
5880 if self.take_rename(true, cx).is_some() {
5881 return;
5882 }
5883
5884 if matches!(self.mode, EditorMode::SingleLine) {
5885 cx.propagate();
5886 return;
5887 }
5888
5889 let text_layout_details = &self.text_layout_details(cx);
5890
5891 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5892 let line_mode = s.line_mode;
5893 s.move_with(|map, selection| {
5894 if !selection.is_empty() && !line_mode {
5895 selection.goal = SelectionGoal::None;
5896 }
5897 let (cursor, goal) = movement::down_by_rows(
5898 map,
5899 selection.start,
5900 action.lines,
5901 selection.goal,
5902 false,
5903 &text_layout_details,
5904 );
5905 selection.collapse_to(cursor, goal);
5906 });
5907 })
5908 }
5909
5910 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
5911 let text_layout_details = &self.text_layout_details(cx);
5912 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5913 s.move_heads_with(|map, head, goal| {
5914 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5915 })
5916 })
5917 }
5918
5919 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
5920 let text_layout_details = &self.text_layout_details(cx);
5921 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5922 s.move_heads_with(|map, head, goal| {
5923 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
5924 })
5925 })
5926 }
5927
5928 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
5929 if self.take_rename(true, cx).is_some() {
5930 return;
5931 }
5932
5933 if matches!(self.mode, EditorMode::SingleLine) {
5934 cx.propagate();
5935 return;
5936 }
5937
5938 let row_count = if let Some(row_count) = self.visible_line_count() {
5939 row_count as u32 - 1
5940 } else {
5941 return;
5942 };
5943
5944 let autoscroll = if action.center_cursor {
5945 Autoscroll::center()
5946 } else {
5947 Autoscroll::fit()
5948 };
5949
5950 let text_layout_details = &self.text_layout_details(cx);
5951
5952 self.change_selections(Some(autoscroll), cx, |s| {
5953 let line_mode = s.line_mode;
5954 s.move_with(|map, selection| {
5955 if !selection.is_empty() && !line_mode {
5956 selection.goal = SelectionGoal::None;
5957 }
5958 let (cursor, goal) = movement::up_by_rows(
5959 map,
5960 selection.end,
5961 row_count,
5962 selection.goal,
5963 false,
5964 &text_layout_details,
5965 );
5966 selection.collapse_to(cursor, goal);
5967 });
5968 });
5969 }
5970
5971 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
5972 let text_layout_details = &self.text_layout_details(cx);
5973 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5974 s.move_heads_with(|map, head, goal| {
5975 movement::up(map, head, goal, false, &text_layout_details)
5976 })
5977 })
5978 }
5979
5980 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
5981 self.take_rename(true, cx);
5982
5983 if self.mode == EditorMode::SingleLine {
5984 cx.propagate();
5985 return;
5986 }
5987
5988 let text_layout_details = &self.text_layout_details(cx);
5989 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5990 let line_mode = s.line_mode;
5991 s.move_with(|map, selection| {
5992 if !selection.is_empty() && !line_mode {
5993 selection.goal = SelectionGoal::None;
5994 }
5995 let (cursor, goal) = movement::down(
5996 map,
5997 selection.end,
5998 selection.goal,
5999 false,
6000 &text_layout_details,
6001 );
6002 selection.collapse_to(cursor, goal);
6003 });
6004 });
6005 }
6006
6007 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6008 if self.take_rename(true, cx).is_some() {
6009 return;
6010 }
6011
6012 if self
6013 .context_menu
6014 .write()
6015 .as_mut()
6016 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6017 .unwrap_or(false)
6018 {
6019 return;
6020 }
6021
6022 if matches!(self.mode, EditorMode::SingleLine) {
6023 cx.propagate();
6024 return;
6025 }
6026
6027 let row_count = if let Some(row_count) = self.visible_line_count() {
6028 row_count as u32 - 1
6029 } else {
6030 return;
6031 };
6032
6033 let autoscroll = if action.center_cursor {
6034 Autoscroll::center()
6035 } else {
6036 Autoscroll::fit()
6037 };
6038
6039 let text_layout_details = &self.text_layout_details(cx);
6040 self.change_selections(Some(autoscroll), cx, |s| {
6041 let line_mode = s.line_mode;
6042 s.move_with(|map, selection| {
6043 if !selection.is_empty() && !line_mode {
6044 selection.goal = SelectionGoal::None;
6045 }
6046 let (cursor, goal) = movement::down_by_rows(
6047 map,
6048 selection.end,
6049 row_count,
6050 selection.goal,
6051 false,
6052 &text_layout_details,
6053 );
6054 selection.collapse_to(cursor, goal);
6055 });
6056 });
6057 }
6058
6059 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6060 let text_layout_details = &self.text_layout_details(cx);
6061 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6062 s.move_heads_with(|map, head, goal| {
6063 movement::down(map, head, goal, false, &text_layout_details)
6064 })
6065 });
6066 }
6067
6068 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6069 if let Some(context_menu) = self.context_menu.write().as_mut() {
6070 context_menu.select_first(self.project.as_ref(), cx);
6071 }
6072 }
6073
6074 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6075 if let Some(context_menu) = self.context_menu.write().as_mut() {
6076 context_menu.select_prev(self.project.as_ref(), cx);
6077 }
6078 }
6079
6080 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6081 if let Some(context_menu) = self.context_menu.write().as_mut() {
6082 context_menu.select_next(self.project.as_ref(), cx);
6083 }
6084 }
6085
6086 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6087 if let Some(context_menu) = self.context_menu.write().as_mut() {
6088 context_menu.select_last(self.project.as_ref(), cx);
6089 }
6090 }
6091
6092 pub fn move_to_previous_word_start(
6093 &mut self,
6094 _: &MoveToPreviousWordStart,
6095 cx: &mut ViewContext<Self>,
6096 ) {
6097 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6098 s.move_cursors_with(|map, head, _| {
6099 (
6100 movement::previous_word_start(map, head),
6101 SelectionGoal::None,
6102 )
6103 });
6104 })
6105 }
6106
6107 pub fn move_to_previous_subword_start(
6108 &mut self,
6109 _: &MoveToPreviousSubwordStart,
6110 cx: &mut ViewContext<Self>,
6111 ) {
6112 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6113 s.move_cursors_with(|map, head, _| {
6114 (
6115 movement::previous_subword_start(map, head),
6116 SelectionGoal::None,
6117 )
6118 });
6119 })
6120 }
6121
6122 pub fn select_to_previous_word_start(
6123 &mut self,
6124 _: &SelectToPreviousWordStart,
6125 cx: &mut ViewContext<Self>,
6126 ) {
6127 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6128 s.move_heads_with(|map, head, _| {
6129 (
6130 movement::previous_word_start(map, head),
6131 SelectionGoal::None,
6132 )
6133 });
6134 })
6135 }
6136
6137 pub fn select_to_previous_subword_start(
6138 &mut self,
6139 _: &SelectToPreviousSubwordStart,
6140 cx: &mut ViewContext<Self>,
6141 ) {
6142 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6143 s.move_heads_with(|map, head, _| {
6144 (
6145 movement::previous_subword_start(map, head),
6146 SelectionGoal::None,
6147 )
6148 });
6149 })
6150 }
6151
6152 pub fn delete_to_previous_word_start(
6153 &mut self,
6154 _: &DeleteToPreviousWordStart,
6155 cx: &mut ViewContext<Self>,
6156 ) {
6157 self.transact(cx, |this, cx| {
6158 this.select_autoclose_pair(cx);
6159 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6160 let line_mode = s.line_mode;
6161 s.move_with(|map, selection| {
6162 if selection.is_empty() && !line_mode {
6163 let cursor = movement::previous_word_start(map, selection.head());
6164 selection.set_head(cursor, SelectionGoal::None);
6165 }
6166 });
6167 });
6168 this.insert("", cx);
6169 });
6170 }
6171
6172 pub fn delete_to_previous_subword_start(
6173 &mut self,
6174 _: &DeleteToPreviousSubwordStart,
6175 cx: &mut ViewContext<Self>,
6176 ) {
6177 self.transact(cx, |this, cx| {
6178 this.select_autoclose_pair(cx);
6179 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6180 let line_mode = s.line_mode;
6181 s.move_with(|map, selection| {
6182 if selection.is_empty() && !line_mode {
6183 let cursor = movement::previous_subword_start(map, selection.head());
6184 selection.set_head(cursor, SelectionGoal::None);
6185 }
6186 });
6187 });
6188 this.insert("", cx);
6189 });
6190 }
6191
6192 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6193 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6194 s.move_cursors_with(|map, head, _| {
6195 (movement::next_word_end(map, head), SelectionGoal::None)
6196 });
6197 })
6198 }
6199
6200 pub fn move_to_next_subword_end(
6201 &mut self,
6202 _: &MoveToNextSubwordEnd,
6203 cx: &mut ViewContext<Self>,
6204 ) {
6205 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6206 s.move_cursors_with(|map, head, _| {
6207 (movement::next_subword_end(map, head), SelectionGoal::None)
6208 });
6209 })
6210 }
6211
6212 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6213 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6214 s.move_heads_with(|map, head, _| {
6215 (movement::next_word_end(map, head), SelectionGoal::None)
6216 });
6217 })
6218 }
6219
6220 pub fn select_to_next_subword_end(
6221 &mut self,
6222 _: &SelectToNextSubwordEnd,
6223 cx: &mut ViewContext<Self>,
6224 ) {
6225 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6226 s.move_heads_with(|map, head, _| {
6227 (movement::next_subword_end(map, head), SelectionGoal::None)
6228 });
6229 })
6230 }
6231
6232 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6233 self.transact(cx, |this, cx| {
6234 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6235 let line_mode = s.line_mode;
6236 s.move_with(|map, selection| {
6237 if selection.is_empty() && !line_mode {
6238 let cursor = movement::next_word_end(map, selection.head());
6239 selection.set_head(cursor, SelectionGoal::None);
6240 }
6241 });
6242 });
6243 this.insert("", cx);
6244 });
6245 }
6246
6247 pub fn delete_to_next_subword_end(
6248 &mut self,
6249 _: &DeleteToNextSubwordEnd,
6250 cx: &mut ViewContext<Self>,
6251 ) {
6252 self.transact(cx, |this, cx| {
6253 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6254 s.move_with(|map, selection| {
6255 if selection.is_empty() {
6256 let cursor = movement::next_subword_end(map, selection.head());
6257 selection.set_head(cursor, SelectionGoal::None);
6258 }
6259 });
6260 });
6261 this.insert("", cx);
6262 });
6263 }
6264
6265 pub fn move_to_beginning_of_line(
6266 &mut self,
6267 action: &MoveToBeginningOfLine,
6268 cx: &mut ViewContext<Self>,
6269 ) {
6270 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6271 s.move_cursors_with(|map, head, _| {
6272 (
6273 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6274 SelectionGoal::None,
6275 )
6276 });
6277 })
6278 }
6279
6280 pub fn select_to_beginning_of_line(
6281 &mut self,
6282 action: &SelectToBeginningOfLine,
6283 cx: &mut ViewContext<Self>,
6284 ) {
6285 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6286 s.move_heads_with(|map, head, _| {
6287 (
6288 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
6289 SelectionGoal::None,
6290 )
6291 });
6292 });
6293 }
6294
6295 pub fn delete_to_beginning_of_line(
6296 &mut self,
6297 _: &DeleteToBeginningOfLine,
6298 cx: &mut ViewContext<Self>,
6299 ) {
6300 self.transact(cx, |this, cx| {
6301 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6302 s.move_with(|_, selection| {
6303 selection.reversed = true;
6304 });
6305 });
6306
6307 this.select_to_beginning_of_line(
6308 &SelectToBeginningOfLine {
6309 stop_at_soft_wraps: false,
6310 },
6311 cx,
6312 );
6313 this.backspace(&Backspace, cx);
6314 });
6315 }
6316
6317 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
6318 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6319 s.move_cursors_with(|map, head, _| {
6320 (
6321 movement::line_end(map, head, action.stop_at_soft_wraps),
6322 SelectionGoal::None,
6323 )
6324 });
6325 })
6326 }
6327
6328 pub fn select_to_end_of_line(
6329 &mut self,
6330 action: &SelectToEndOfLine,
6331 cx: &mut ViewContext<Self>,
6332 ) {
6333 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6334 s.move_heads_with(|map, head, _| {
6335 (
6336 movement::line_end(map, head, action.stop_at_soft_wraps),
6337 SelectionGoal::None,
6338 )
6339 });
6340 })
6341 }
6342
6343 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
6344 self.transact(cx, |this, cx| {
6345 this.select_to_end_of_line(
6346 &SelectToEndOfLine {
6347 stop_at_soft_wraps: false,
6348 },
6349 cx,
6350 );
6351 this.delete(&Delete, cx);
6352 });
6353 }
6354
6355 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
6356 self.transact(cx, |this, cx| {
6357 this.select_to_end_of_line(
6358 &SelectToEndOfLine {
6359 stop_at_soft_wraps: false,
6360 },
6361 cx,
6362 );
6363 this.cut(&Cut, cx);
6364 });
6365 }
6366
6367 pub fn move_to_start_of_paragraph(
6368 &mut self,
6369 _: &MoveToStartOfParagraph,
6370 cx: &mut ViewContext<Self>,
6371 ) {
6372 if matches!(self.mode, EditorMode::SingleLine) {
6373 cx.propagate();
6374 return;
6375 }
6376
6377 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6378 s.move_with(|map, selection| {
6379 selection.collapse_to(
6380 movement::start_of_paragraph(map, selection.head(), 1),
6381 SelectionGoal::None,
6382 )
6383 });
6384 })
6385 }
6386
6387 pub fn move_to_end_of_paragraph(
6388 &mut self,
6389 _: &MoveToEndOfParagraph,
6390 cx: &mut ViewContext<Self>,
6391 ) {
6392 if matches!(self.mode, EditorMode::SingleLine) {
6393 cx.propagate();
6394 return;
6395 }
6396
6397 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6398 s.move_with(|map, selection| {
6399 selection.collapse_to(
6400 movement::end_of_paragraph(map, selection.head(), 1),
6401 SelectionGoal::None,
6402 )
6403 });
6404 })
6405 }
6406
6407 pub fn select_to_start_of_paragraph(
6408 &mut self,
6409 _: &SelectToStartOfParagraph,
6410 cx: &mut ViewContext<Self>,
6411 ) {
6412 if matches!(self.mode, EditorMode::SingleLine) {
6413 cx.propagate();
6414 return;
6415 }
6416
6417 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6418 s.move_heads_with(|map, head, _| {
6419 (
6420 movement::start_of_paragraph(map, head, 1),
6421 SelectionGoal::None,
6422 )
6423 });
6424 })
6425 }
6426
6427 pub fn select_to_end_of_paragraph(
6428 &mut self,
6429 _: &SelectToEndOfParagraph,
6430 cx: &mut ViewContext<Self>,
6431 ) {
6432 if matches!(self.mode, EditorMode::SingleLine) {
6433 cx.propagate();
6434 return;
6435 }
6436
6437 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6438 s.move_heads_with(|map, head, _| {
6439 (
6440 movement::end_of_paragraph(map, head, 1),
6441 SelectionGoal::None,
6442 )
6443 });
6444 })
6445 }
6446
6447 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
6448 if matches!(self.mode, EditorMode::SingleLine) {
6449 cx.propagate();
6450 return;
6451 }
6452
6453 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6454 s.select_ranges(vec![0..0]);
6455 });
6456 }
6457
6458 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
6459 let mut selection = self.selections.last::<Point>(cx);
6460 selection.set_head(Point::zero(), SelectionGoal::None);
6461
6462 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6463 s.select(vec![selection]);
6464 });
6465 }
6466
6467 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
6468 if matches!(self.mode, EditorMode::SingleLine) {
6469 cx.propagate();
6470 return;
6471 }
6472
6473 let cursor = self.buffer.read(cx).read(cx).len();
6474 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6475 s.select_ranges(vec![cursor..cursor])
6476 });
6477 }
6478
6479 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
6480 self.nav_history = nav_history;
6481 }
6482
6483 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
6484 self.nav_history.as_ref()
6485 }
6486
6487 fn push_to_nav_history(
6488 &mut self,
6489 cursor_anchor: Anchor,
6490 new_position: Option<Point>,
6491 cx: &mut ViewContext<Self>,
6492 ) {
6493 if let Some(nav_history) = self.nav_history.as_mut() {
6494 let buffer = self.buffer.read(cx).read(cx);
6495 let cursor_position = cursor_anchor.to_point(&buffer);
6496 let scroll_state = self.scroll_manager.anchor();
6497 let scroll_top_row = scroll_state.top_row(&buffer);
6498 drop(buffer);
6499
6500 if let Some(new_position) = new_position {
6501 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
6502 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
6503 return;
6504 }
6505 }
6506
6507 nav_history.push(
6508 Some(NavigationData {
6509 cursor_anchor,
6510 cursor_position,
6511 scroll_anchor: scroll_state,
6512 scroll_top_row,
6513 }),
6514 cx,
6515 );
6516 }
6517 }
6518
6519 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
6520 let buffer = self.buffer.read(cx).snapshot(cx);
6521 let mut selection = self.selections.first::<usize>(cx);
6522 selection.set_head(buffer.len(), SelectionGoal::None);
6523 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6524 s.select(vec![selection]);
6525 });
6526 }
6527
6528 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
6529 let end = self.buffer.read(cx).read(cx).len();
6530 self.change_selections(None, cx, |s| {
6531 s.select_ranges(vec![0..end]);
6532 });
6533 }
6534
6535 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
6536 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6537 let mut selections = self.selections.all::<Point>(cx);
6538 let max_point = display_map.buffer_snapshot.max_point();
6539 for selection in &mut selections {
6540 let rows = selection.spanned_rows(true, &display_map);
6541 selection.start = Point::new(rows.start, 0);
6542 selection.end = cmp::min(max_point, Point::new(rows.end, 0));
6543 selection.reversed = false;
6544 }
6545 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6546 s.select(selections);
6547 });
6548 }
6549
6550 pub fn split_selection_into_lines(
6551 &mut self,
6552 _: &SplitSelectionIntoLines,
6553 cx: &mut ViewContext<Self>,
6554 ) {
6555 let mut to_unfold = Vec::new();
6556 let mut new_selection_ranges = Vec::new();
6557 {
6558 let selections = self.selections.all::<Point>(cx);
6559 let buffer = self.buffer.read(cx).read(cx);
6560 for selection in selections {
6561 for row in selection.start.row..selection.end.row {
6562 let cursor = Point::new(row, buffer.line_len(row));
6563 new_selection_ranges.push(cursor..cursor);
6564 }
6565 new_selection_ranges.push(selection.end..selection.end);
6566 to_unfold.push(selection.start..selection.end);
6567 }
6568 }
6569 self.unfold_ranges(to_unfold, true, true, cx);
6570 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6571 s.select_ranges(new_selection_ranges);
6572 });
6573 }
6574
6575 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
6576 self.add_selection(true, cx);
6577 }
6578
6579 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
6580 self.add_selection(false, cx);
6581 }
6582
6583 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
6584 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6585 let mut selections = self.selections.all::<Point>(cx);
6586 let text_layout_details = self.text_layout_details(cx);
6587 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
6588 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
6589 let range = oldest_selection.display_range(&display_map).sorted();
6590
6591 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
6592 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
6593 let positions = start_x.min(end_x)..start_x.max(end_x);
6594
6595 selections.clear();
6596 let mut stack = Vec::new();
6597 for row in range.start.row()..=range.end.row() {
6598 if let Some(selection) = self.selections.build_columnar_selection(
6599 &display_map,
6600 row,
6601 &positions,
6602 oldest_selection.reversed,
6603 &text_layout_details,
6604 ) {
6605 stack.push(selection.id);
6606 selections.push(selection);
6607 }
6608 }
6609
6610 if above {
6611 stack.reverse();
6612 }
6613
6614 AddSelectionsState { above, stack }
6615 });
6616
6617 let last_added_selection = *state.stack.last().unwrap();
6618 let mut new_selections = Vec::new();
6619 if above == state.above {
6620 let end_row = if above {
6621 0
6622 } else {
6623 display_map.max_point().row()
6624 };
6625
6626 'outer: for selection in selections {
6627 if selection.id == last_added_selection {
6628 let range = selection.display_range(&display_map).sorted();
6629 debug_assert_eq!(range.start.row(), range.end.row());
6630 let mut row = range.start.row();
6631 let positions =
6632 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
6633 px(start)..px(end)
6634 } else {
6635 let start_x =
6636 display_map.x_for_display_point(range.start, &text_layout_details);
6637 let end_x =
6638 display_map.x_for_display_point(range.end, &text_layout_details);
6639 start_x.min(end_x)..start_x.max(end_x)
6640 };
6641
6642 while row != end_row {
6643 if above {
6644 row -= 1;
6645 } else {
6646 row += 1;
6647 }
6648
6649 if let Some(new_selection) = self.selections.build_columnar_selection(
6650 &display_map,
6651 row,
6652 &positions,
6653 selection.reversed,
6654 &text_layout_details,
6655 ) {
6656 state.stack.push(new_selection.id);
6657 if above {
6658 new_selections.push(new_selection);
6659 new_selections.push(selection);
6660 } else {
6661 new_selections.push(selection);
6662 new_selections.push(new_selection);
6663 }
6664
6665 continue 'outer;
6666 }
6667 }
6668 }
6669
6670 new_selections.push(selection);
6671 }
6672 } else {
6673 new_selections = selections;
6674 new_selections.retain(|s| s.id != last_added_selection);
6675 state.stack.pop();
6676 }
6677
6678 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6679 s.select(new_selections);
6680 });
6681 if state.stack.len() > 1 {
6682 self.add_selections_state = Some(state);
6683 }
6684 }
6685
6686 pub fn select_next_match_internal(
6687 &mut self,
6688 display_map: &DisplaySnapshot,
6689 replace_newest: bool,
6690 autoscroll: Option<Autoscroll>,
6691 cx: &mut ViewContext<Self>,
6692 ) -> Result<()> {
6693 fn select_next_match_ranges(
6694 this: &mut Editor,
6695 range: Range<usize>,
6696 replace_newest: bool,
6697 auto_scroll: Option<Autoscroll>,
6698 cx: &mut ViewContext<Editor>,
6699 ) {
6700 this.unfold_ranges([range.clone()], false, true, cx);
6701 this.change_selections(auto_scroll, cx, |s| {
6702 if replace_newest {
6703 s.delete(s.newest_anchor().id);
6704 }
6705 s.insert_range(range.clone());
6706 });
6707 }
6708
6709 let buffer = &display_map.buffer_snapshot;
6710 let mut selections = self.selections.all::<usize>(cx);
6711 if let Some(mut select_next_state) = self.select_next_state.take() {
6712 let query = &select_next_state.query;
6713 if !select_next_state.done {
6714 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6715 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6716 let mut next_selected_range = None;
6717
6718 let bytes_after_last_selection =
6719 buffer.bytes_in_range(last_selection.end..buffer.len());
6720 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
6721 let query_matches = query
6722 .stream_find_iter(bytes_after_last_selection)
6723 .map(|result| (last_selection.end, result))
6724 .chain(
6725 query
6726 .stream_find_iter(bytes_before_first_selection)
6727 .map(|result| (0, result)),
6728 );
6729
6730 for (start_offset, query_match) in query_matches {
6731 let query_match = query_match.unwrap(); // can only fail due to I/O
6732 let offset_range =
6733 start_offset + query_match.start()..start_offset + query_match.end();
6734 let display_range = offset_range.start.to_display_point(&display_map)
6735 ..offset_range.end.to_display_point(&display_map);
6736
6737 if !select_next_state.wordwise
6738 || (!movement::is_inside_word(&display_map, display_range.start)
6739 && !movement::is_inside_word(&display_map, display_range.end))
6740 {
6741 // TODO: This is n^2, because we might check all the selections
6742 if !selections
6743 .iter()
6744 .any(|selection| selection.range().overlaps(&offset_range))
6745 {
6746 next_selected_range = Some(offset_range);
6747 break;
6748 }
6749 }
6750 }
6751
6752 if let Some(next_selected_range) = next_selected_range {
6753 select_next_match_ranges(
6754 self,
6755 next_selected_range,
6756 replace_newest,
6757 autoscroll,
6758 cx,
6759 );
6760 } else {
6761 select_next_state.done = true;
6762 }
6763 }
6764
6765 self.select_next_state = Some(select_next_state);
6766 } else {
6767 let mut only_carets = true;
6768 let mut same_text_selected = true;
6769 let mut selected_text = None;
6770
6771 let mut selections_iter = selections.iter().peekable();
6772 while let Some(selection) = selections_iter.next() {
6773 if selection.start != selection.end {
6774 only_carets = false;
6775 }
6776
6777 if same_text_selected {
6778 if selected_text.is_none() {
6779 selected_text =
6780 Some(buffer.text_for_range(selection.range()).collect::<String>());
6781 }
6782
6783 if let Some(next_selection) = selections_iter.peek() {
6784 if next_selection.range().len() == selection.range().len() {
6785 let next_selected_text = buffer
6786 .text_for_range(next_selection.range())
6787 .collect::<String>();
6788 if Some(next_selected_text) != selected_text {
6789 same_text_selected = false;
6790 selected_text = None;
6791 }
6792 } else {
6793 same_text_selected = false;
6794 selected_text = None;
6795 }
6796 }
6797 }
6798 }
6799
6800 if only_carets {
6801 for selection in &mut selections {
6802 let word_range = movement::surrounding_word(
6803 &display_map,
6804 selection.start.to_display_point(&display_map),
6805 );
6806 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
6807 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
6808 selection.goal = SelectionGoal::None;
6809 selection.reversed = false;
6810 select_next_match_ranges(
6811 self,
6812 selection.start..selection.end,
6813 replace_newest,
6814 autoscroll,
6815 cx,
6816 );
6817 }
6818
6819 if selections.len() == 1 {
6820 let selection = selections
6821 .last()
6822 .expect("ensured that there's only one selection");
6823 let query = buffer
6824 .text_for_range(selection.start..selection.end)
6825 .collect::<String>();
6826 let is_empty = query.is_empty();
6827 let select_state = SelectNextState {
6828 query: AhoCorasick::new(&[query])?,
6829 wordwise: true,
6830 done: is_empty,
6831 };
6832 self.select_next_state = Some(select_state);
6833 } else {
6834 self.select_next_state = None;
6835 }
6836 } else if let Some(selected_text) = selected_text {
6837 self.select_next_state = Some(SelectNextState {
6838 query: AhoCorasick::new(&[selected_text])?,
6839 wordwise: false,
6840 done: false,
6841 });
6842 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
6843 }
6844 }
6845 Ok(())
6846 }
6847
6848 pub fn select_all_matches(
6849 &mut self,
6850 _action: &SelectAllMatches,
6851 cx: &mut ViewContext<Self>,
6852 ) -> Result<()> {
6853 self.push_to_selection_history();
6854 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6855
6856 self.select_next_match_internal(&display_map, false, None, cx)?;
6857 let Some(select_next_state) = self.select_next_state.as_mut() else {
6858 return Ok(());
6859 };
6860 if select_next_state.done {
6861 return Ok(());
6862 }
6863
6864 let mut new_selections = self.selections.all::<usize>(cx);
6865
6866 let buffer = &display_map.buffer_snapshot;
6867 let query_matches = select_next_state
6868 .query
6869 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
6870
6871 for query_match in query_matches {
6872 let query_match = query_match.unwrap(); // can only fail due to I/O
6873 let offset_range = query_match.start()..query_match.end();
6874 let display_range = offset_range.start.to_display_point(&display_map)
6875 ..offset_range.end.to_display_point(&display_map);
6876
6877 if !select_next_state.wordwise
6878 || (!movement::is_inside_word(&display_map, display_range.start)
6879 && !movement::is_inside_word(&display_map, display_range.end))
6880 {
6881 self.selections.change_with(cx, |selections| {
6882 new_selections.push(Selection {
6883 id: selections.new_selection_id(),
6884 start: offset_range.start,
6885 end: offset_range.end,
6886 reversed: false,
6887 goal: SelectionGoal::None,
6888 });
6889 });
6890 }
6891 }
6892
6893 new_selections.sort_by_key(|selection| selection.start);
6894 let mut ix = 0;
6895 while ix + 1 < new_selections.len() {
6896 let current_selection = &new_selections[ix];
6897 let next_selection = &new_selections[ix + 1];
6898 if current_selection.range().overlaps(&next_selection.range()) {
6899 if current_selection.id < next_selection.id {
6900 new_selections.remove(ix + 1);
6901 } else {
6902 new_selections.remove(ix);
6903 }
6904 } else {
6905 ix += 1;
6906 }
6907 }
6908
6909 select_next_state.done = true;
6910 self.unfold_ranges(
6911 new_selections.iter().map(|selection| selection.range()),
6912 false,
6913 false,
6914 cx,
6915 );
6916 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
6917 selections.select(new_selections)
6918 });
6919
6920 Ok(())
6921 }
6922
6923 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
6924 self.push_to_selection_history();
6925 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6926 self.select_next_match_internal(
6927 &display_map,
6928 action.replace_newest,
6929 Some(Autoscroll::newest()),
6930 cx,
6931 )?;
6932 Ok(())
6933 }
6934
6935 pub fn select_previous(
6936 &mut self,
6937 action: &SelectPrevious,
6938 cx: &mut ViewContext<Self>,
6939 ) -> Result<()> {
6940 self.push_to_selection_history();
6941 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6942 let buffer = &display_map.buffer_snapshot;
6943 let mut selections = self.selections.all::<usize>(cx);
6944 if let Some(mut select_prev_state) = self.select_prev_state.take() {
6945 let query = &select_prev_state.query;
6946 if !select_prev_state.done {
6947 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
6948 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
6949 let mut next_selected_range = None;
6950 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
6951 let bytes_before_last_selection =
6952 buffer.reversed_bytes_in_range(0..last_selection.start);
6953 let bytes_after_first_selection =
6954 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
6955 let query_matches = query
6956 .stream_find_iter(bytes_before_last_selection)
6957 .map(|result| (last_selection.start, result))
6958 .chain(
6959 query
6960 .stream_find_iter(bytes_after_first_selection)
6961 .map(|result| (buffer.len(), result)),
6962 );
6963 for (end_offset, query_match) in query_matches {
6964 let query_match = query_match.unwrap(); // can only fail due to I/O
6965 let offset_range =
6966 end_offset - query_match.end()..end_offset - query_match.start();
6967 let display_range = offset_range.start.to_display_point(&display_map)
6968 ..offset_range.end.to_display_point(&display_map);
6969
6970 if !select_prev_state.wordwise
6971 || (!movement::is_inside_word(&display_map, display_range.start)
6972 && !movement::is_inside_word(&display_map, display_range.end))
6973 {
6974 next_selected_range = Some(offset_range);
6975 break;
6976 }
6977 }
6978
6979 if let Some(next_selected_range) = next_selected_range {
6980 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
6981 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
6982 if action.replace_newest {
6983 s.delete(s.newest_anchor().id);
6984 }
6985 s.insert_range(next_selected_range);
6986 });
6987 } else {
6988 select_prev_state.done = true;
6989 }
6990 }
6991
6992 self.select_prev_state = Some(select_prev_state);
6993 } else {
6994 let mut only_carets = true;
6995 let mut same_text_selected = true;
6996 let mut selected_text = None;
6997
6998 let mut selections_iter = selections.iter().peekable();
6999 while let Some(selection) = selections_iter.next() {
7000 if selection.start != selection.end {
7001 only_carets = false;
7002 }
7003
7004 if same_text_selected {
7005 if selected_text.is_none() {
7006 selected_text =
7007 Some(buffer.text_for_range(selection.range()).collect::<String>());
7008 }
7009
7010 if let Some(next_selection) = selections_iter.peek() {
7011 if next_selection.range().len() == selection.range().len() {
7012 let next_selected_text = buffer
7013 .text_for_range(next_selection.range())
7014 .collect::<String>();
7015 if Some(next_selected_text) != selected_text {
7016 same_text_selected = false;
7017 selected_text = None;
7018 }
7019 } else {
7020 same_text_selected = false;
7021 selected_text = None;
7022 }
7023 }
7024 }
7025 }
7026
7027 if only_carets {
7028 for selection in &mut selections {
7029 let word_range = movement::surrounding_word(
7030 &display_map,
7031 selection.start.to_display_point(&display_map),
7032 );
7033 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7034 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7035 selection.goal = SelectionGoal::None;
7036 selection.reversed = false;
7037 }
7038 if selections.len() == 1 {
7039 let selection = selections
7040 .last()
7041 .expect("ensured that there's only one selection");
7042 let query = buffer
7043 .text_for_range(selection.start..selection.end)
7044 .collect::<String>();
7045 let is_empty = query.is_empty();
7046 let select_state = SelectNextState {
7047 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7048 wordwise: true,
7049 done: is_empty,
7050 };
7051 self.select_prev_state = Some(select_state);
7052 } else {
7053 self.select_prev_state = None;
7054 }
7055
7056 self.unfold_ranges(
7057 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7058 false,
7059 true,
7060 cx,
7061 );
7062 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7063 s.select(selections);
7064 });
7065 } else if let Some(selected_text) = selected_text {
7066 self.select_prev_state = Some(SelectNextState {
7067 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7068 wordwise: false,
7069 done: false,
7070 });
7071 self.select_previous(action, cx)?;
7072 }
7073 }
7074 Ok(())
7075 }
7076
7077 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7078 let text_layout_details = &self.text_layout_details(cx);
7079 self.transact(cx, |this, cx| {
7080 let mut selections = this.selections.all::<Point>(cx);
7081 let mut edits = Vec::new();
7082 let mut selection_edit_ranges = Vec::new();
7083 let mut last_toggled_row = None;
7084 let snapshot = this.buffer.read(cx).read(cx);
7085 let empty_str: Arc<str> = "".into();
7086 let mut suffixes_inserted = Vec::new();
7087
7088 fn comment_prefix_range(
7089 snapshot: &MultiBufferSnapshot,
7090 row: u32,
7091 comment_prefix: &str,
7092 comment_prefix_whitespace: &str,
7093 ) -> Range<Point> {
7094 let start = Point::new(row, snapshot.indent_size_for_line(row).len);
7095
7096 let mut line_bytes = snapshot
7097 .bytes_in_range(start..snapshot.max_point())
7098 .flatten()
7099 .copied();
7100
7101 // If this line currently begins with the line comment prefix, then record
7102 // the range containing the prefix.
7103 if line_bytes
7104 .by_ref()
7105 .take(comment_prefix.len())
7106 .eq(comment_prefix.bytes())
7107 {
7108 // Include any whitespace that matches the comment prefix.
7109 let matching_whitespace_len = line_bytes
7110 .zip(comment_prefix_whitespace.bytes())
7111 .take_while(|(a, b)| a == b)
7112 .count() as u32;
7113 let end = Point::new(
7114 start.row,
7115 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7116 );
7117 start..end
7118 } else {
7119 start..start
7120 }
7121 }
7122
7123 fn comment_suffix_range(
7124 snapshot: &MultiBufferSnapshot,
7125 row: u32,
7126 comment_suffix: &str,
7127 comment_suffix_has_leading_space: bool,
7128 ) -> Range<Point> {
7129 let end = Point::new(row, snapshot.line_len(row));
7130 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7131
7132 let mut line_end_bytes = snapshot
7133 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7134 .flatten()
7135 .copied();
7136
7137 let leading_space_len = if suffix_start_column > 0
7138 && line_end_bytes.next() == Some(b' ')
7139 && comment_suffix_has_leading_space
7140 {
7141 1
7142 } else {
7143 0
7144 };
7145
7146 // If this line currently begins with the line comment prefix, then record
7147 // the range containing the prefix.
7148 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7149 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7150 start..end
7151 } else {
7152 end..end
7153 }
7154 }
7155
7156 // TODO: Handle selections that cross excerpts
7157 for selection in &mut selections {
7158 let start_column = snapshot.indent_size_for_line(selection.start.row).len;
7159 let language = if let Some(language) =
7160 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7161 {
7162 language
7163 } else {
7164 continue;
7165 };
7166
7167 selection_edit_ranges.clear();
7168
7169 // If multiple selections contain a given row, avoid processing that
7170 // row more than once.
7171 let mut start_row = selection.start.row;
7172 if last_toggled_row == Some(start_row) {
7173 start_row += 1;
7174 }
7175 let end_row =
7176 if selection.end.row > selection.start.row && selection.end.column == 0 {
7177 selection.end.row - 1
7178 } else {
7179 selection.end.row
7180 };
7181 last_toggled_row = Some(end_row);
7182
7183 if start_row > end_row {
7184 continue;
7185 }
7186
7187 // If the language has line comments, toggle those.
7188 if let Some(full_comment_prefixes) = language
7189 .line_comment_prefixes()
7190 .filter(|prefixes| !prefixes.is_empty())
7191 {
7192 let first_prefix = full_comment_prefixes
7193 .first()
7194 .expect("prefixes is non-empty");
7195 let prefix_trimmed_lengths = full_comment_prefixes
7196 .iter()
7197 .map(|p| p.trim_end_matches(' ').len())
7198 .collect::<SmallVec<[usize; 4]>>();
7199
7200 let mut all_selection_lines_are_comments = true;
7201
7202 for row in start_row..=end_row {
7203 if start_row < end_row && snapshot.is_line_blank(row) {
7204 continue;
7205 }
7206
7207 let prefix_range = full_comment_prefixes
7208 .iter()
7209 .zip(prefix_trimmed_lengths.iter().copied())
7210 .map(|(prefix, trimmed_prefix_len)| {
7211 comment_prefix_range(
7212 snapshot.deref(),
7213 row,
7214 &prefix[..trimmed_prefix_len],
7215 &prefix[trimmed_prefix_len..],
7216 )
7217 })
7218 .max_by_key(|range| range.end.column - range.start.column)
7219 .expect("prefixes is non-empty");
7220
7221 if prefix_range.is_empty() {
7222 all_selection_lines_are_comments = false;
7223 }
7224
7225 selection_edit_ranges.push(prefix_range);
7226 }
7227
7228 if all_selection_lines_are_comments {
7229 edits.extend(
7230 selection_edit_ranges
7231 .iter()
7232 .cloned()
7233 .map(|range| (range, empty_str.clone())),
7234 );
7235 } else {
7236 let min_column = selection_edit_ranges
7237 .iter()
7238 .map(|range| range.start.column)
7239 .min()
7240 .unwrap_or(0);
7241 edits.extend(selection_edit_ranges.iter().map(|range| {
7242 let position = Point::new(range.start.row, min_column);
7243 (position..position, first_prefix.clone())
7244 }));
7245 }
7246 } else if let Some((full_comment_prefix, comment_suffix)) =
7247 language.block_comment_delimiters()
7248 {
7249 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7250 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7251 let prefix_range = comment_prefix_range(
7252 snapshot.deref(),
7253 start_row,
7254 comment_prefix,
7255 comment_prefix_whitespace,
7256 );
7257 let suffix_range = comment_suffix_range(
7258 snapshot.deref(),
7259 end_row,
7260 comment_suffix.trim_start_matches(' '),
7261 comment_suffix.starts_with(' '),
7262 );
7263
7264 if prefix_range.is_empty() || suffix_range.is_empty() {
7265 edits.push((
7266 prefix_range.start..prefix_range.start,
7267 full_comment_prefix.clone(),
7268 ));
7269 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
7270 suffixes_inserted.push((end_row, comment_suffix.len()));
7271 } else {
7272 edits.push((prefix_range, empty_str.clone()));
7273 edits.push((suffix_range, empty_str.clone()));
7274 }
7275 } else {
7276 continue;
7277 }
7278 }
7279
7280 drop(snapshot);
7281 this.buffer.update(cx, |buffer, cx| {
7282 buffer.edit(edits, None, cx);
7283 });
7284
7285 // Adjust selections so that they end before any comment suffixes that
7286 // were inserted.
7287 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
7288 let mut selections = this.selections.all::<Point>(cx);
7289 let snapshot = this.buffer.read(cx).read(cx);
7290 for selection in &mut selections {
7291 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
7292 match row.cmp(&selection.end.row) {
7293 Ordering::Less => {
7294 suffixes_inserted.next();
7295 continue;
7296 }
7297 Ordering::Greater => break,
7298 Ordering::Equal => {
7299 if selection.end.column == snapshot.line_len(row) {
7300 if selection.is_empty() {
7301 selection.start.column -= suffix_len as u32;
7302 }
7303 selection.end.column -= suffix_len as u32;
7304 }
7305 break;
7306 }
7307 }
7308 }
7309 }
7310
7311 drop(snapshot);
7312 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7313
7314 let selections = this.selections.all::<Point>(cx);
7315 let selections_on_single_row = selections.windows(2).all(|selections| {
7316 selections[0].start.row == selections[1].start.row
7317 && selections[0].end.row == selections[1].end.row
7318 && selections[0].start.row == selections[0].end.row
7319 });
7320 let selections_selecting = selections
7321 .iter()
7322 .any(|selection| selection.start != selection.end);
7323 let advance_downwards = action.advance_downwards
7324 && selections_on_single_row
7325 && !selections_selecting
7326 && this.mode != EditorMode::SingleLine;
7327
7328 if advance_downwards {
7329 let snapshot = this.buffer.read(cx).snapshot(cx);
7330
7331 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7332 s.move_cursors_with(|display_snapshot, display_point, _| {
7333 let mut point = display_point.to_point(display_snapshot);
7334 point.row += 1;
7335 point = snapshot.clip_point(point, Bias::Left);
7336 let display_point = point.to_display_point(display_snapshot);
7337 let goal = SelectionGoal::HorizontalPosition(
7338 display_snapshot
7339 .x_for_display_point(display_point, &text_layout_details)
7340 .into(),
7341 );
7342 (display_point, goal)
7343 })
7344 });
7345 }
7346 });
7347 }
7348
7349 pub fn select_larger_syntax_node(
7350 &mut self,
7351 _: &SelectLargerSyntaxNode,
7352 cx: &mut ViewContext<Self>,
7353 ) {
7354 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7355 let buffer = self.buffer.read(cx).snapshot(cx);
7356 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
7357
7358 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7359 let mut selected_larger_node = false;
7360 let new_selections = old_selections
7361 .iter()
7362 .map(|selection| {
7363 let old_range = selection.start..selection.end;
7364 let mut new_range = old_range.clone();
7365 while let Some(containing_range) =
7366 buffer.range_for_syntax_ancestor(new_range.clone())
7367 {
7368 new_range = containing_range;
7369 if !display_map.intersects_fold(new_range.start)
7370 && !display_map.intersects_fold(new_range.end)
7371 {
7372 break;
7373 }
7374 }
7375
7376 selected_larger_node |= new_range != old_range;
7377 Selection {
7378 id: selection.id,
7379 start: new_range.start,
7380 end: new_range.end,
7381 goal: SelectionGoal::None,
7382 reversed: selection.reversed,
7383 }
7384 })
7385 .collect::<Vec<_>>();
7386
7387 if selected_larger_node {
7388 stack.push(old_selections);
7389 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7390 s.select(new_selections);
7391 });
7392 }
7393 self.select_larger_syntax_node_stack = stack;
7394 }
7395
7396 pub fn select_smaller_syntax_node(
7397 &mut self,
7398 _: &SelectSmallerSyntaxNode,
7399 cx: &mut ViewContext<Self>,
7400 ) {
7401 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
7402 if let Some(selections) = stack.pop() {
7403 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7404 s.select(selections.to_vec());
7405 });
7406 }
7407 self.select_larger_syntax_node_stack = stack;
7408 }
7409
7410 pub fn move_to_enclosing_bracket(
7411 &mut self,
7412 _: &MoveToEnclosingBracket,
7413 cx: &mut ViewContext<Self>,
7414 ) {
7415 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7416 s.move_offsets_with(|snapshot, selection| {
7417 let Some(enclosing_bracket_ranges) =
7418 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
7419 else {
7420 return;
7421 };
7422
7423 let mut best_length = usize::MAX;
7424 let mut best_inside = false;
7425 let mut best_in_bracket_range = false;
7426 let mut best_destination = None;
7427 for (open, close) in enclosing_bracket_ranges {
7428 let close = close.to_inclusive();
7429 let length = close.end() - open.start;
7430 let inside = selection.start >= open.end && selection.end <= *close.start();
7431 let in_bracket_range = open.to_inclusive().contains(&selection.head())
7432 || close.contains(&selection.head());
7433
7434 // If best is next to a bracket and current isn't, skip
7435 if !in_bracket_range && best_in_bracket_range {
7436 continue;
7437 }
7438
7439 // Prefer smaller lengths unless best is inside and current isn't
7440 if length > best_length && (best_inside || !inside) {
7441 continue;
7442 }
7443
7444 best_length = length;
7445 best_inside = inside;
7446 best_in_bracket_range = in_bracket_range;
7447 best_destination = Some(
7448 if close.contains(&selection.start) && close.contains(&selection.end) {
7449 if inside {
7450 open.end
7451 } else {
7452 open.start
7453 }
7454 } else {
7455 if inside {
7456 *close.start()
7457 } else {
7458 *close.end()
7459 }
7460 },
7461 );
7462 }
7463
7464 if let Some(destination) = best_destination {
7465 selection.collapse_to(destination, SelectionGoal::None);
7466 }
7467 })
7468 });
7469 }
7470
7471 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
7472 self.end_selection(cx);
7473 self.selection_history.mode = SelectionHistoryMode::Undoing;
7474 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
7475 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7476 self.select_next_state = entry.select_next_state;
7477 self.select_prev_state = entry.select_prev_state;
7478 self.add_selections_state = entry.add_selections_state;
7479 self.request_autoscroll(Autoscroll::newest(), cx);
7480 }
7481 self.selection_history.mode = SelectionHistoryMode::Normal;
7482 }
7483
7484 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
7485 self.end_selection(cx);
7486 self.selection_history.mode = SelectionHistoryMode::Redoing;
7487 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
7488 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
7489 self.select_next_state = entry.select_next_state;
7490 self.select_prev_state = entry.select_prev_state;
7491 self.add_selections_state = entry.add_selections_state;
7492 self.request_autoscroll(Autoscroll::newest(), cx);
7493 }
7494 self.selection_history.mode = SelectionHistoryMode::Normal;
7495 }
7496
7497 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
7498 let selections = self.selections.disjoint_anchors();
7499
7500 let lines = if action.lines == 0 { 3 } else { action.lines };
7501
7502 self.buffer.update(cx, |buffer, cx| {
7503 buffer.expand_excerpts(
7504 selections
7505 .into_iter()
7506 .map(|selection| selection.head().excerpt_id)
7507 .dedup(),
7508 lines,
7509 cx,
7510 )
7511 })
7512 }
7513
7514 pub fn expand_excerpt(&mut self, excerpt: ExcerptId, cx: &mut ViewContext<Self>) {
7515 self.buffer
7516 .update(cx, |buffer, cx| buffer.expand_excerpts([excerpt], 3, cx))
7517 }
7518
7519 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
7520 self.go_to_diagnostic_impl(Direction::Next, cx)
7521 }
7522
7523 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
7524 self.go_to_diagnostic_impl(Direction::Prev, cx)
7525 }
7526
7527 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
7528 let buffer = self.buffer.read(cx).snapshot(cx);
7529 let selection = self.selections.newest::<usize>(cx);
7530
7531 // If there is an active Diagnostic Popover jump to its diagnostic instead.
7532 if direction == Direction::Next {
7533 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
7534 let (group_id, jump_to) = popover.activation_info();
7535 if self.activate_diagnostics(group_id, cx) {
7536 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7537 let mut new_selection = s.newest_anchor().clone();
7538 new_selection.collapse_to(jump_to, SelectionGoal::None);
7539 s.select_anchors(vec![new_selection.clone()]);
7540 });
7541 }
7542 return;
7543 }
7544 }
7545
7546 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
7547 active_diagnostics
7548 .primary_range
7549 .to_offset(&buffer)
7550 .to_inclusive()
7551 });
7552 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
7553 if active_primary_range.contains(&selection.head()) {
7554 *active_primary_range.end()
7555 } else {
7556 selection.head()
7557 }
7558 } else {
7559 selection.head()
7560 };
7561 let snapshot = self.snapshot(cx);
7562 loop {
7563 let mut diagnostics = if direction == Direction::Prev {
7564 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
7565 } else {
7566 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
7567 }
7568 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
7569 let group = diagnostics.find_map(|entry| {
7570 if entry.diagnostic.is_primary
7571 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
7572 && !entry.range.is_empty()
7573 && Some(entry.range.end) != active_primary_range.as_ref().map(|r| *r.end())
7574 && !entry.range.contains(&search_start)
7575 {
7576 Some((entry.range, entry.diagnostic.group_id))
7577 } else {
7578 None
7579 }
7580 });
7581
7582 if let Some((primary_range, group_id)) = group {
7583 if self.activate_diagnostics(group_id, cx) {
7584 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7585 s.select(vec![Selection {
7586 id: selection.id,
7587 start: primary_range.start,
7588 end: primary_range.start,
7589 reversed: false,
7590 goal: SelectionGoal::None,
7591 }]);
7592 });
7593 }
7594 break;
7595 } else {
7596 // Cycle around to the start of the buffer, potentially moving back to the start of
7597 // the currently active diagnostic.
7598 active_primary_range.take();
7599 if direction == Direction::Prev {
7600 if search_start == buffer.len() {
7601 break;
7602 } else {
7603 search_start = buffer.len();
7604 }
7605 } else if search_start == 0 {
7606 break;
7607 } else {
7608 search_start = 0;
7609 }
7610 }
7611 }
7612 }
7613
7614 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
7615 let snapshot = self
7616 .display_map
7617 .update(cx, |display_map, cx| display_map.snapshot(cx));
7618 let selection = self.selections.newest::<Point>(cx);
7619
7620 if !self.seek_in_direction(
7621 &snapshot,
7622 selection.head(),
7623 false,
7624 snapshot
7625 .buffer_snapshot
7626 .git_diff_hunks_in_range((selection.head().row + 1)..u32::MAX),
7627 cx,
7628 ) {
7629 let wrapped_point = Point::zero();
7630 self.seek_in_direction(
7631 &snapshot,
7632 wrapped_point,
7633 true,
7634 snapshot
7635 .buffer_snapshot
7636 .git_diff_hunks_in_range((wrapped_point.row + 1)..u32::MAX),
7637 cx,
7638 );
7639 }
7640 }
7641
7642 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
7643 let snapshot = self
7644 .display_map
7645 .update(cx, |display_map, cx| display_map.snapshot(cx));
7646 let selection = self.selections.newest::<Point>(cx);
7647
7648 if !self.seek_in_direction(
7649 &snapshot,
7650 selection.head(),
7651 false,
7652 snapshot
7653 .buffer_snapshot
7654 .git_diff_hunks_in_range_rev(0..selection.head().row),
7655 cx,
7656 ) {
7657 let wrapped_point = snapshot.buffer_snapshot.max_point();
7658 self.seek_in_direction(
7659 &snapshot,
7660 wrapped_point,
7661 true,
7662 snapshot
7663 .buffer_snapshot
7664 .git_diff_hunks_in_range_rev(0..wrapped_point.row),
7665 cx,
7666 );
7667 }
7668 }
7669
7670 fn seek_in_direction(
7671 &mut self,
7672 snapshot: &DisplaySnapshot,
7673 initial_point: Point,
7674 is_wrapped: bool,
7675 hunks: impl Iterator<Item = DiffHunk<u32>>,
7676 cx: &mut ViewContext<Editor>,
7677 ) -> bool {
7678 let display_point = initial_point.to_display_point(snapshot);
7679 let mut hunks = hunks
7680 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
7681 .filter(|hunk| {
7682 if is_wrapped {
7683 true
7684 } else {
7685 !hunk.contains_display_row(display_point.row())
7686 }
7687 })
7688 .dedup();
7689
7690 if let Some(hunk) = hunks.next() {
7691 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7692 let row = hunk.start_display_row();
7693 let point = DisplayPoint::new(row, 0);
7694 s.select_display_ranges([point..point]);
7695 });
7696
7697 true
7698 } else {
7699 false
7700 }
7701 }
7702
7703 pub fn go_to_definition(
7704 &mut self,
7705 _: &GoToDefinition,
7706 cx: &mut ViewContext<Self>,
7707 ) -> Task<Result<bool>> {
7708 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
7709 }
7710
7711 pub fn go_to_implementation(
7712 &mut self,
7713 _: &GoToImplementation,
7714 cx: &mut ViewContext<Self>,
7715 ) -> Task<Result<bool>> {
7716 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
7717 }
7718
7719 pub fn go_to_implementation_split(
7720 &mut self,
7721 _: &GoToImplementationSplit,
7722 cx: &mut ViewContext<Self>,
7723 ) -> Task<Result<bool>> {
7724 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
7725 }
7726
7727 pub fn go_to_type_definition(
7728 &mut self,
7729 _: &GoToTypeDefinition,
7730 cx: &mut ViewContext<Self>,
7731 ) -> Task<Result<bool>> {
7732 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
7733 }
7734
7735 pub fn go_to_definition_split(
7736 &mut self,
7737 _: &GoToDefinitionSplit,
7738 cx: &mut ViewContext<Self>,
7739 ) -> Task<Result<bool>> {
7740 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
7741 }
7742
7743 pub fn go_to_type_definition_split(
7744 &mut self,
7745 _: &GoToTypeDefinitionSplit,
7746 cx: &mut ViewContext<Self>,
7747 ) -> Task<Result<bool>> {
7748 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
7749 }
7750
7751 fn go_to_definition_of_kind(
7752 &mut self,
7753 kind: GotoDefinitionKind,
7754 split: bool,
7755 cx: &mut ViewContext<Self>,
7756 ) -> Task<Result<bool>> {
7757 let Some(workspace) = self.workspace() else {
7758 return Task::ready(Ok(false));
7759 };
7760 let buffer = self.buffer.read(cx);
7761 let head = self.selections.newest::<usize>(cx).head();
7762 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
7763 text_anchor
7764 } else {
7765 return Task::ready(Ok(false));
7766 };
7767
7768 let project = workspace.read(cx).project().clone();
7769 let definitions = project.update(cx, |project, cx| match kind {
7770 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
7771 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
7772 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
7773 });
7774
7775 cx.spawn(|editor, mut cx| async move {
7776 let definitions = definitions.await?;
7777 let navigated = editor
7778 .update(&mut cx, |editor, cx| {
7779 editor.navigate_to_hover_links(
7780 Some(kind),
7781 definitions
7782 .into_iter()
7783 .filter(|location| {
7784 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
7785 })
7786 .map(HoverLink::Text)
7787 .collect::<Vec<_>>(),
7788 split,
7789 cx,
7790 )
7791 })?
7792 .await?;
7793 anyhow::Ok(navigated)
7794 })
7795 }
7796
7797 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
7798 let position = self.selections.newest_anchor().head();
7799 let Some((buffer, buffer_position)) =
7800 self.buffer.read(cx).text_anchor_for_position(position, cx)
7801 else {
7802 return;
7803 };
7804
7805 cx.spawn(|editor, mut cx| async move {
7806 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
7807 editor.update(&mut cx, |_, cx| {
7808 cx.open_url(&url);
7809 })
7810 } else {
7811 Ok(())
7812 }
7813 })
7814 .detach();
7815 }
7816
7817 pub(crate) fn navigate_to_hover_links(
7818 &mut self,
7819 kind: Option<GotoDefinitionKind>,
7820 mut definitions: Vec<HoverLink>,
7821 split: bool,
7822 cx: &mut ViewContext<Editor>,
7823 ) -> Task<Result<bool>> {
7824 // If there is one definition, just open it directly
7825 if definitions.len() == 1 {
7826 let definition = definitions.pop().unwrap();
7827 let target_task = match definition {
7828 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7829 HoverLink::InlayHint(lsp_location, server_id) => {
7830 self.compute_target_location(lsp_location, server_id, cx)
7831 }
7832 HoverLink::Url(url) => {
7833 cx.open_url(&url);
7834 Task::ready(Ok(None))
7835 }
7836 };
7837 cx.spawn(|editor, mut cx| async move {
7838 let target = target_task.await.context("target resolution task")?;
7839 if let Some(target) = target {
7840 editor.update(&mut cx, |editor, cx| {
7841 let Some(workspace) = editor.workspace() else {
7842 return false;
7843 };
7844 let pane = workspace.read(cx).active_pane().clone();
7845
7846 let range = target.range.to_offset(target.buffer.read(cx));
7847 let range = editor.range_for_match(&range);
7848 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
7849 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
7850 s.select_ranges([range]);
7851 });
7852 } else {
7853 cx.window_context().defer(move |cx| {
7854 let target_editor: View<Self> =
7855 workspace.update(cx, |workspace, cx| {
7856 let pane = if split {
7857 workspace.adjacent_pane(cx)
7858 } else {
7859 workspace.active_pane().clone()
7860 };
7861
7862 workspace.open_project_item(pane, target.buffer.clone(), cx)
7863 });
7864 target_editor.update(cx, |target_editor, cx| {
7865 // When selecting a definition in a different buffer, disable the nav history
7866 // to avoid creating a history entry at the previous cursor location.
7867 pane.update(cx, |pane, _| pane.disable_history());
7868 target_editor.change_selections(
7869 Some(Autoscroll::focused()),
7870 cx,
7871 |s| {
7872 s.select_ranges([range]);
7873 },
7874 );
7875 pane.update(cx, |pane, _| pane.enable_history());
7876 });
7877 });
7878 }
7879 true
7880 })
7881 } else {
7882 Ok(false)
7883 }
7884 })
7885 } else if !definitions.is_empty() {
7886 let replica_id = self.replica_id(cx);
7887 cx.spawn(|editor, mut cx| async move {
7888 let (title, location_tasks, workspace) = editor
7889 .update(&mut cx, |editor, cx| {
7890 let tab_kind = match kind {
7891 Some(GotoDefinitionKind::Implementation) => "Implementations",
7892 _ => "Definitions",
7893 };
7894 let title = definitions
7895 .iter()
7896 .find_map(|definition| match definition {
7897 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
7898 let buffer = origin.buffer.read(cx);
7899 format!(
7900 "{} for {}",
7901 tab_kind,
7902 buffer
7903 .text_for_range(origin.range.clone())
7904 .collect::<String>()
7905 )
7906 }),
7907 HoverLink::InlayHint(_, _) => None,
7908 HoverLink::Url(_) => None,
7909 })
7910 .unwrap_or(tab_kind.to_string());
7911 let location_tasks = definitions
7912 .into_iter()
7913 .map(|definition| match definition {
7914 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
7915 HoverLink::InlayHint(lsp_location, server_id) => {
7916 editor.compute_target_location(lsp_location, server_id, cx)
7917 }
7918 HoverLink::Url(_) => Task::ready(Ok(None)),
7919 })
7920 .collect::<Vec<_>>();
7921 (title, location_tasks, editor.workspace().clone())
7922 })
7923 .context("location tasks preparation")?;
7924
7925 let locations = futures::future::join_all(location_tasks)
7926 .await
7927 .into_iter()
7928 .filter_map(|location| location.transpose())
7929 .collect::<Result<_>>()
7930 .context("location tasks")?;
7931
7932 let Some(workspace) = workspace else {
7933 return Ok(false);
7934 };
7935 let opened = workspace
7936 .update(&mut cx, |workspace, cx| {
7937 Self::open_locations_in_multibuffer(
7938 workspace, locations, replica_id, title, split, cx,
7939 )
7940 })
7941 .ok();
7942
7943 anyhow::Ok(opened.is_some())
7944 })
7945 } else {
7946 Task::ready(Ok(false))
7947 }
7948 }
7949
7950 fn compute_target_location(
7951 &self,
7952 lsp_location: lsp::Location,
7953 server_id: LanguageServerId,
7954 cx: &mut ViewContext<Editor>,
7955 ) -> Task<anyhow::Result<Option<Location>>> {
7956 let Some(project) = self.project.clone() else {
7957 return Task::Ready(Some(Ok(None)));
7958 };
7959
7960 cx.spawn(move |editor, mut cx| async move {
7961 let location_task = editor.update(&mut cx, |editor, cx| {
7962 project.update(cx, |project, cx| {
7963 let language_server_name =
7964 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
7965 project
7966 .language_server_for_buffer(buffer.read(cx), server_id, cx)
7967 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
7968 });
7969 language_server_name.map(|language_server_name| {
7970 project.open_local_buffer_via_lsp(
7971 lsp_location.uri.clone(),
7972 server_id,
7973 language_server_name,
7974 cx,
7975 )
7976 })
7977 })
7978 })?;
7979 let location = match location_task {
7980 Some(task) => Some({
7981 let target_buffer_handle = task.await.context("open local buffer")?;
7982 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
7983 let target_start = target_buffer
7984 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
7985 let target_end = target_buffer
7986 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
7987 target_buffer.anchor_after(target_start)
7988 ..target_buffer.anchor_before(target_end)
7989 })?;
7990 Location {
7991 buffer: target_buffer_handle,
7992 range,
7993 }
7994 }),
7995 None => None,
7996 };
7997 Ok(location)
7998 })
7999 }
8000
8001 pub fn find_all_references(
8002 &mut self,
8003 _: &FindAllReferences,
8004 cx: &mut ViewContext<Self>,
8005 ) -> Option<Task<Result<()>>> {
8006 let multi_buffer = self.buffer.read(cx);
8007 let selection = self.selections.newest::<usize>(cx);
8008 let head = selection.head();
8009
8010 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8011 let head_anchor = multi_buffer_snapshot.anchor_at(
8012 head,
8013 if head < selection.tail() {
8014 Bias::Right
8015 } else {
8016 Bias::Left
8017 },
8018 );
8019
8020 match self
8021 .find_all_references_task_sources
8022 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8023 {
8024 Ok(_) => {
8025 log::info!(
8026 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8027 );
8028 return None;
8029 }
8030 Err(i) => {
8031 self.find_all_references_task_sources.insert(i, head_anchor);
8032 }
8033 }
8034
8035 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8036 let replica_id = self.replica_id(cx);
8037 let workspace = self.workspace()?;
8038 let project = workspace.read(cx).project().clone();
8039 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8040 Some(cx.spawn(|editor, mut cx| async move {
8041 let _cleanup = defer({
8042 let mut cx = cx.clone();
8043 move || {
8044 let _ = editor.update(&mut cx, |editor, _| {
8045 if let Ok(i) =
8046 editor
8047 .find_all_references_task_sources
8048 .binary_search_by(|anchor| {
8049 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8050 })
8051 {
8052 editor.find_all_references_task_sources.remove(i);
8053 }
8054 });
8055 }
8056 });
8057
8058 let locations = references.await?;
8059 if locations.is_empty() {
8060 return anyhow::Ok(());
8061 }
8062
8063 workspace.update(&mut cx, |workspace, cx| {
8064 let title = locations
8065 .first()
8066 .as_ref()
8067 .map(|location| {
8068 let buffer = location.buffer.read(cx);
8069 format!(
8070 "References to `{}`",
8071 buffer
8072 .text_for_range(location.range.clone())
8073 .collect::<String>()
8074 )
8075 })
8076 .unwrap();
8077 Self::open_locations_in_multibuffer(
8078 workspace, locations, replica_id, title, false, cx,
8079 );
8080 })
8081 }))
8082 }
8083
8084 /// Opens a multibuffer with the given project locations in it
8085 pub fn open_locations_in_multibuffer(
8086 workspace: &mut Workspace,
8087 mut locations: Vec<Location>,
8088 replica_id: ReplicaId,
8089 title: String,
8090 split: bool,
8091 cx: &mut ViewContext<Workspace>,
8092 ) {
8093 // If there are multiple definitions, open them in a multibuffer
8094 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
8095 let mut locations = locations.into_iter().peekable();
8096 let mut ranges_to_highlight = Vec::new();
8097 let capability = workspace.project().read(cx).capability();
8098
8099 let excerpt_buffer = cx.new_model(|cx| {
8100 let mut multibuffer = MultiBuffer::new(replica_id, capability);
8101 while let Some(location) = locations.next() {
8102 let buffer = location.buffer.read(cx);
8103 let mut ranges_for_buffer = Vec::new();
8104 let range = location.range.to_offset(buffer);
8105 ranges_for_buffer.push(range.clone());
8106
8107 while let Some(next_location) = locations.peek() {
8108 if next_location.buffer == location.buffer {
8109 ranges_for_buffer.push(next_location.range.to_offset(buffer));
8110 locations.next();
8111 } else {
8112 break;
8113 }
8114 }
8115
8116 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
8117 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
8118 location.buffer.clone(),
8119 ranges_for_buffer,
8120 DEFAULT_MULTIBUFFER_CONTEXT,
8121 cx,
8122 ))
8123 }
8124
8125 multibuffer.with_title(title)
8126 });
8127
8128 let editor = cx.new_view(|cx| {
8129 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), cx)
8130 });
8131 editor.update(cx, |editor, cx| {
8132 editor.highlight_background::<Self>(
8133 &ranges_to_highlight,
8134 |theme| theme.editor_highlighted_line_background,
8135 cx,
8136 );
8137 });
8138
8139 let item = Box::new(editor);
8140 let item_id = item.item_id();
8141
8142 if split {
8143 workspace.split_item(SplitDirection::Right, item.clone(), cx);
8144 } else {
8145 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
8146 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
8147 pane.close_current_preview_item(cx)
8148 } else {
8149 None
8150 }
8151 });
8152 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
8153 }
8154 workspace.active_pane().update(cx, |pane, cx| {
8155 pane.set_preview_item_id(Some(item_id), cx);
8156 });
8157 }
8158
8159 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8160 use language::ToOffset as _;
8161
8162 let project = self.project.clone()?;
8163 let selection = self.selections.newest_anchor().clone();
8164 let (cursor_buffer, cursor_buffer_position) = self
8165 .buffer
8166 .read(cx)
8167 .text_anchor_for_position(selection.head(), cx)?;
8168 let (tail_buffer, cursor_buffer_position_end) = self
8169 .buffer
8170 .read(cx)
8171 .text_anchor_for_position(selection.tail(), cx)?;
8172 if tail_buffer != cursor_buffer {
8173 return None;
8174 }
8175
8176 let snapshot = cursor_buffer.read(cx).snapshot();
8177 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
8178 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
8179 let prepare_rename = project.update(cx, |project, cx| {
8180 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
8181 });
8182 drop(snapshot);
8183
8184 Some(cx.spawn(|this, mut cx| async move {
8185 let rename_range = if let Some(range) = prepare_rename.await? {
8186 Some(range)
8187 } else {
8188 this.update(&mut cx, |this, cx| {
8189 let buffer = this.buffer.read(cx).snapshot(cx);
8190 let mut buffer_highlights = this
8191 .document_highlights_for_position(selection.head(), &buffer)
8192 .filter(|highlight| {
8193 highlight.start.excerpt_id == selection.head().excerpt_id
8194 && highlight.end.excerpt_id == selection.head().excerpt_id
8195 });
8196 buffer_highlights
8197 .next()
8198 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
8199 })?
8200 };
8201 if let Some(rename_range) = rename_range {
8202 this.update(&mut cx, |this, cx| {
8203 let snapshot = cursor_buffer.read(cx).snapshot();
8204 let rename_buffer_range = rename_range.to_offset(&snapshot);
8205 let cursor_offset_in_rename_range =
8206 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
8207 let cursor_offset_in_rename_range_end =
8208 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
8209
8210 this.take_rename(false, cx);
8211 let buffer = this.buffer.read(cx).read(cx);
8212 let cursor_offset = selection.head().to_offset(&buffer);
8213 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
8214 let rename_end = rename_start + rename_buffer_range.len();
8215 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
8216 let mut old_highlight_id = None;
8217 let old_name: Arc<str> = buffer
8218 .chunks(rename_start..rename_end, true)
8219 .map(|chunk| {
8220 if old_highlight_id.is_none() {
8221 old_highlight_id = chunk.syntax_highlight_id;
8222 }
8223 chunk.text
8224 })
8225 .collect::<String>()
8226 .into();
8227
8228 drop(buffer);
8229
8230 // Position the selection in the rename editor so that it matches the current selection.
8231 this.show_local_selections = false;
8232 let rename_editor = cx.new_view(|cx| {
8233 let mut editor = Editor::single_line(cx);
8234 editor.buffer.update(cx, |buffer, cx| {
8235 buffer.edit([(0..0, old_name.clone())], None, cx)
8236 });
8237 let rename_selection_range = match cursor_offset_in_rename_range
8238 .cmp(&cursor_offset_in_rename_range_end)
8239 {
8240 Ordering::Equal => {
8241 editor.select_all(&SelectAll, cx);
8242 return editor;
8243 }
8244 Ordering::Less => {
8245 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
8246 }
8247 Ordering::Greater => {
8248 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
8249 }
8250 };
8251 if rename_selection_range.end > old_name.len() {
8252 editor.select_all(&SelectAll, cx);
8253 } else {
8254 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
8255 s.select_ranges([rename_selection_range]);
8256 });
8257 }
8258 editor
8259 });
8260
8261 let write_highlights =
8262 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
8263 let read_highlights =
8264 this.clear_background_highlights::<DocumentHighlightRead>(cx);
8265 let ranges = write_highlights
8266 .iter()
8267 .flat_map(|(_, ranges)| ranges.iter())
8268 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
8269 .cloned()
8270 .collect();
8271
8272 this.highlight_text::<Rename>(
8273 ranges,
8274 HighlightStyle {
8275 fade_out: Some(0.6),
8276 ..Default::default()
8277 },
8278 cx,
8279 );
8280 let rename_focus_handle = rename_editor.focus_handle(cx);
8281 cx.focus(&rename_focus_handle);
8282 let block_id = this.insert_blocks(
8283 [BlockProperties {
8284 style: BlockStyle::Flex,
8285 position: range.start,
8286 height: 1,
8287 render: Box::new({
8288 let rename_editor = rename_editor.clone();
8289 move |cx: &mut BlockContext| {
8290 let mut text_style = cx.editor_style.text.clone();
8291 if let Some(highlight_style) = old_highlight_id
8292 .and_then(|h| h.style(&cx.editor_style.syntax))
8293 {
8294 text_style = text_style.highlight(highlight_style);
8295 }
8296 div()
8297 .pl(cx.anchor_x)
8298 .child(EditorElement::new(
8299 &rename_editor,
8300 EditorStyle {
8301 background: cx.theme().system().transparent,
8302 local_player: cx.editor_style.local_player,
8303 text: text_style,
8304 scrollbar_width: cx.editor_style.scrollbar_width,
8305 syntax: cx.editor_style.syntax.clone(),
8306 status: cx.editor_style.status.clone(),
8307 inlay_hints_style: HighlightStyle {
8308 color: Some(cx.theme().status().hint),
8309 font_weight: Some(FontWeight::BOLD),
8310 ..HighlightStyle::default()
8311 },
8312 suggestions_style: HighlightStyle {
8313 color: Some(cx.theme().status().predictive),
8314 ..HighlightStyle::default()
8315 },
8316 },
8317 ))
8318 .into_any_element()
8319 }
8320 }),
8321 disposition: BlockDisposition::Below,
8322 }],
8323 Some(Autoscroll::fit()),
8324 cx,
8325 )[0];
8326 this.pending_rename = Some(RenameState {
8327 range,
8328 old_name,
8329 editor: rename_editor,
8330 block_id,
8331 });
8332 })?;
8333 }
8334
8335 Ok(())
8336 }))
8337 }
8338
8339 pub fn confirm_rename(
8340 &mut self,
8341 _: &ConfirmRename,
8342 cx: &mut ViewContext<Self>,
8343 ) -> Option<Task<Result<()>>> {
8344 let rename = self.take_rename(false, cx)?;
8345 let workspace = self.workspace()?;
8346 let (start_buffer, start) = self
8347 .buffer
8348 .read(cx)
8349 .text_anchor_for_position(rename.range.start, cx)?;
8350 let (end_buffer, end) = self
8351 .buffer
8352 .read(cx)
8353 .text_anchor_for_position(rename.range.end, cx)?;
8354 if start_buffer != end_buffer {
8355 return None;
8356 }
8357
8358 let buffer = start_buffer;
8359 let range = start..end;
8360 let old_name = rename.old_name;
8361 let new_name = rename.editor.read(cx).text(cx);
8362
8363 let rename = workspace
8364 .read(cx)
8365 .project()
8366 .clone()
8367 .update(cx, |project, cx| {
8368 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
8369 });
8370 let workspace = workspace.downgrade();
8371
8372 Some(cx.spawn(|editor, mut cx| async move {
8373 let project_transaction = rename.await?;
8374 Self::open_project_transaction(
8375 &editor,
8376 workspace,
8377 project_transaction,
8378 format!("Rename: {} → {}", old_name, new_name),
8379 cx.clone(),
8380 )
8381 .await?;
8382
8383 editor.update(&mut cx, |editor, cx| {
8384 editor.refresh_document_highlights(cx);
8385 })?;
8386 Ok(())
8387 }))
8388 }
8389
8390 fn take_rename(
8391 &mut self,
8392 moving_cursor: bool,
8393 cx: &mut ViewContext<Self>,
8394 ) -> Option<RenameState> {
8395 let rename = self.pending_rename.take()?;
8396 if rename.editor.focus_handle(cx).is_focused(cx) {
8397 cx.focus(&self.focus_handle);
8398 }
8399
8400 self.remove_blocks(
8401 [rename.block_id].into_iter().collect(),
8402 Some(Autoscroll::fit()),
8403 cx,
8404 );
8405 self.clear_highlights::<Rename>(cx);
8406 self.show_local_selections = true;
8407
8408 if moving_cursor {
8409 let rename_editor = rename.editor.read(cx);
8410 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
8411
8412 // Update the selection to match the position of the selection inside
8413 // the rename editor.
8414 let snapshot = self.buffer.read(cx).read(cx);
8415 let rename_range = rename.range.to_offset(&snapshot);
8416 let cursor_in_editor = snapshot
8417 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
8418 .min(rename_range.end);
8419 drop(snapshot);
8420
8421 self.change_selections(None, cx, |s| {
8422 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
8423 });
8424 } else {
8425 self.refresh_document_highlights(cx);
8426 }
8427
8428 Some(rename)
8429 }
8430
8431 pub fn pending_rename(&self) -> Option<&RenameState> {
8432 self.pending_rename.as_ref()
8433 }
8434
8435 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
8436 let project = match &self.project {
8437 Some(project) => project.clone(),
8438 None => return None,
8439 };
8440
8441 Some(self.perform_format(project, FormatTrigger::Manual, cx))
8442 }
8443
8444 fn perform_format(
8445 &mut self,
8446 project: Model<Project>,
8447 trigger: FormatTrigger,
8448 cx: &mut ViewContext<Self>,
8449 ) -> Task<Result<()>> {
8450 let buffer = self.buffer().clone();
8451 let mut buffers = buffer.read(cx).all_buffers();
8452 if trigger == FormatTrigger::Save {
8453 buffers.retain(|buffer| buffer.read(cx).is_dirty());
8454 }
8455
8456 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
8457 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
8458
8459 cx.spawn(|_, mut cx| async move {
8460 let transaction = futures::select_biased! {
8461 () = timeout => {
8462 log::warn!("timed out waiting for formatting");
8463 None
8464 }
8465 transaction = format.log_err().fuse() => transaction,
8466 };
8467
8468 buffer
8469 .update(&mut cx, |buffer, cx| {
8470 if let Some(transaction) = transaction {
8471 if !buffer.is_singleton() {
8472 buffer.push_transaction(&transaction.0, cx);
8473 }
8474 }
8475
8476 cx.notify();
8477 })
8478 .ok();
8479
8480 Ok(())
8481 })
8482 }
8483
8484 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
8485 if let Some(project) = self.project.clone() {
8486 self.buffer.update(cx, |multi_buffer, cx| {
8487 project.update(cx, |project, cx| {
8488 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
8489 });
8490 })
8491 }
8492 }
8493
8494 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
8495 cx.show_character_palette();
8496 }
8497
8498 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
8499 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
8500 let buffer = self.buffer.read(cx).snapshot(cx);
8501 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
8502 let is_valid = buffer
8503 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
8504 .any(|entry| {
8505 entry.diagnostic.is_primary
8506 && !entry.range.is_empty()
8507 && entry.range.start == primary_range_start
8508 && entry.diagnostic.message == active_diagnostics.primary_message
8509 });
8510
8511 if is_valid != active_diagnostics.is_valid {
8512 active_diagnostics.is_valid = is_valid;
8513 let mut new_styles = HashMap::default();
8514 for (block_id, diagnostic) in &active_diagnostics.blocks {
8515 new_styles.insert(
8516 *block_id,
8517 diagnostic_block_renderer(diagnostic.clone(), is_valid),
8518 );
8519 }
8520 self.display_map
8521 .update(cx, |display_map, _| display_map.replace_blocks(new_styles));
8522 }
8523 }
8524 }
8525
8526 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
8527 self.dismiss_diagnostics(cx);
8528 let snapshot = self.snapshot(cx);
8529 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
8530 let buffer = self.buffer.read(cx).snapshot(cx);
8531
8532 let mut primary_range = None;
8533 let mut primary_message = None;
8534 let mut group_end = Point::zero();
8535 let diagnostic_group = buffer
8536 .diagnostic_group::<Point>(group_id)
8537 .filter_map(|entry| {
8538 if snapshot.is_line_folded(entry.range.start.row)
8539 && (entry.range.start.row == entry.range.end.row
8540 || snapshot.is_line_folded(entry.range.end.row))
8541 {
8542 return None;
8543 }
8544 if entry.range.end > group_end {
8545 group_end = entry.range.end;
8546 }
8547 if entry.diagnostic.is_primary {
8548 primary_range = Some(entry.range.clone());
8549 primary_message = Some(entry.diagnostic.message.clone());
8550 }
8551 Some(entry)
8552 })
8553 .collect::<Vec<_>>();
8554 let primary_range = primary_range?;
8555 let primary_message = primary_message?;
8556 let primary_range =
8557 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
8558
8559 let blocks = display_map
8560 .insert_blocks(
8561 diagnostic_group.iter().map(|entry| {
8562 let diagnostic = entry.diagnostic.clone();
8563 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
8564 BlockProperties {
8565 style: BlockStyle::Fixed,
8566 position: buffer.anchor_after(entry.range.start),
8567 height: message_height,
8568 render: diagnostic_block_renderer(diagnostic, true),
8569 disposition: BlockDisposition::Below,
8570 }
8571 }),
8572 cx,
8573 )
8574 .into_iter()
8575 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
8576 .collect();
8577
8578 Some(ActiveDiagnosticGroup {
8579 primary_range,
8580 primary_message,
8581 blocks,
8582 is_valid: true,
8583 })
8584 });
8585 self.active_diagnostics.is_some()
8586 }
8587
8588 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
8589 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
8590 self.display_map.update(cx, |display_map, cx| {
8591 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
8592 });
8593 cx.notify();
8594 }
8595 }
8596
8597 pub fn set_selections_from_remote(
8598 &mut self,
8599 selections: Vec<Selection<Anchor>>,
8600 pending_selection: Option<Selection<Anchor>>,
8601 cx: &mut ViewContext<Self>,
8602 ) {
8603 let old_cursor_position = self.selections.newest_anchor().head();
8604 self.selections.change_with(cx, |s| {
8605 s.select_anchors(selections);
8606 if let Some(pending_selection) = pending_selection {
8607 s.set_pending(pending_selection, SelectMode::Character);
8608 } else {
8609 s.clear_pending();
8610 }
8611 });
8612 self.selections_did_change(false, &old_cursor_position, cx);
8613 }
8614
8615 fn push_to_selection_history(&mut self) {
8616 self.selection_history.push(SelectionHistoryEntry {
8617 selections: self.selections.disjoint_anchors(),
8618 select_next_state: self.select_next_state.clone(),
8619 select_prev_state: self.select_prev_state.clone(),
8620 add_selections_state: self.add_selections_state.clone(),
8621 });
8622 }
8623
8624 pub fn transact(
8625 &mut self,
8626 cx: &mut ViewContext<Self>,
8627 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
8628 ) -> Option<TransactionId> {
8629 self.start_transaction_at(Instant::now(), cx);
8630 update(self, cx);
8631 self.end_transaction_at(Instant::now(), cx)
8632 }
8633
8634 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
8635 self.end_selection(cx);
8636 if let Some(tx_id) = self
8637 .buffer
8638 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
8639 {
8640 self.selection_history
8641 .insert_transaction(tx_id, self.selections.disjoint_anchors());
8642 cx.emit(EditorEvent::TransactionBegun {
8643 transaction_id: tx_id,
8644 })
8645 }
8646 }
8647
8648 fn end_transaction_at(
8649 &mut self,
8650 now: Instant,
8651 cx: &mut ViewContext<Self>,
8652 ) -> Option<TransactionId> {
8653 if let Some(tx_id) = self
8654 .buffer
8655 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
8656 {
8657 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
8658 *end_selections = Some(self.selections.disjoint_anchors());
8659 } else {
8660 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
8661 }
8662
8663 cx.emit(EditorEvent::Edited);
8664 Some(tx_id)
8665 } else {
8666 None
8667 }
8668 }
8669
8670 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
8671 let mut fold_ranges = Vec::new();
8672
8673 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8674
8675 let selections = self.selections.all_adjusted(cx);
8676 for selection in selections {
8677 let range = selection.range().sorted();
8678 let buffer_start_row = range.start.row;
8679
8680 for row in (0..=range.end.row).rev() {
8681 let fold_range = display_map.foldable_range(row);
8682
8683 if let Some(fold_range) = fold_range {
8684 if fold_range.end.row >= buffer_start_row {
8685 fold_ranges.push(fold_range);
8686 if row <= range.start.row {
8687 break;
8688 }
8689 }
8690 }
8691 }
8692 }
8693
8694 self.fold_ranges(fold_ranges, true, cx);
8695 }
8696
8697 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
8698 let buffer_row = fold_at.buffer_row;
8699 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8700
8701 if let Some(fold_range) = display_map.foldable_range(buffer_row) {
8702 let autoscroll = self
8703 .selections
8704 .all::<Point>(cx)
8705 .iter()
8706 .any(|selection| fold_range.overlaps(&selection.range()));
8707
8708 self.fold_ranges(std::iter::once(fold_range), autoscroll, cx);
8709 }
8710 }
8711
8712 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
8713 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8714 let buffer = &display_map.buffer_snapshot;
8715 let selections = self.selections.all::<Point>(cx);
8716 let ranges = selections
8717 .iter()
8718 .map(|s| {
8719 let range = s.display_range(&display_map).sorted();
8720 let mut start = range.start.to_point(&display_map);
8721 let mut end = range.end.to_point(&display_map);
8722 start.column = 0;
8723 end.column = buffer.line_len(end.row);
8724 start..end
8725 })
8726 .collect::<Vec<_>>();
8727
8728 self.unfold_ranges(ranges, true, true, cx);
8729 }
8730
8731 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
8732 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8733
8734 let intersection_range = Point::new(unfold_at.buffer_row, 0)
8735 ..Point::new(
8736 unfold_at.buffer_row,
8737 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
8738 );
8739
8740 let autoscroll = self
8741 .selections
8742 .all::<Point>(cx)
8743 .iter()
8744 .any(|selection| selection.range().overlaps(&intersection_range));
8745
8746 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
8747 }
8748
8749 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
8750 let selections = self.selections.all::<Point>(cx);
8751 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8752 let line_mode = self.selections.line_mode;
8753 let ranges = selections.into_iter().map(|s| {
8754 if line_mode {
8755 let start = Point::new(s.start.row, 0);
8756 let end = Point::new(s.end.row, display_map.buffer_snapshot.line_len(s.end.row));
8757 start..end
8758 } else {
8759 s.start..s.end
8760 }
8761 });
8762 self.fold_ranges(ranges, true, cx);
8763 }
8764
8765 pub fn fold_ranges<T: ToOffset + Clone>(
8766 &mut self,
8767 ranges: impl IntoIterator<Item = Range<T>>,
8768 auto_scroll: bool,
8769 cx: &mut ViewContext<Self>,
8770 ) {
8771 let mut fold_ranges = Vec::new();
8772 let mut buffers_affected = HashMap::default();
8773 let multi_buffer = self.buffer().read(cx);
8774 for range in ranges {
8775 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
8776 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
8777 };
8778 fold_ranges.push(range);
8779 }
8780
8781 let mut ranges = fold_ranges.into_iter().peekable();
8782 if ranges.peek().is_some() {
8783 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
8784
8785 if auto_scroll {
8786 self.request_autoscroll(Autoscroll::fit(), cx);
8787 }
8788
8789 for buffer in buffers_affected.into_values() {
8790 self.sync_expanded_diff_hunks(buffer, cx);
8791 }
8792
8793 cx.notify();
8794
8795 if let Some(active_diagnostics) = self.active_diagnostics.take() {
8796 // Clear diagnostics block when folding a range that contains it.
8797 let snapshot = self.snapshot(cx);
8798 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
8799 drop(snapshot);
8800 self.active_diagnostics = Some(active_diagnostics);
8801 self.dismiss_diagnostics(cx);
8802 } else {
8803 self.active_diagnostics = Some(active_diagnostics);
8804 }
8805 }
8806 }
8807 }
8808
8809 pub fn unfold_ranges<T: ToOffset + Clone>(
8810 &mut self,
8811 ranges: impl IntoIterator<Item = Range<T>>,
8812 inclusive: bool,
8813 auto_scroll: bool,
8814 cx: &mut ViewContext<Self>,
8815 ) {
8816 let mut unfold_ranges = Vec::new();
8817 let mut buffers_affected = HashMap::default();
8818 let multi_buffer = self.buffer().read(cx);
8819 for range in ranges {
8820 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
8821 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
8822 };
8823 unfold_ranges.push(range);
8824 }
8825
8826 let mut ranges = unfold_ranges.into_iter().peekable();
8827 if ranges.peek().is_some() {
8828 self.display_map
8829 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
8830 if auto_scroll {
8831 self.request_autoscroll(Autoscroll::fit(), cx);
8832 }
8833
8834 for buffer in buffers_affected.into_values() {
8835 self.sync_expanded_diff_hunks(buffer, cx);
8836 }
8837
8838 cx.notify();
8839 }
8840 }
8841
8842 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
8843 if hovered != self.gutter_hovered {
8844 self.gutter_hovered = hovered;
8845 cx.notify();
8846 }
8847 }
8848
8849 pub fn insert_blocks(
8850 &mut self,
8851 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
8852 autoscroll: Option<Autoscroll>,
8853 cx: &mut ViewContext<Self>,
8854 ) -> Vec<BlockId> {
8855 let blocks = self
8856 .display_map
8857 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
8858 if let Some(autoscroll) = autoscroll {
8859 self.request_autoscroll(autoscroll, cx);
8860 }
8861 blocks
8862 }
8863
8864 pub fn replace_blocks(
8865 &mut self,
8866 blocks: HashMap<BlockId, RenderBlock>,
8867 autoscroll: Option<Autoscroll>,
8868 cx: &mut ViewContext<Self>,
8869 ) {
8870 self.display_map
8871 .update(cx, |display_map, _| display_map.replace_blocks(blocks));
8872 if let Some(autoscroll) = autoscroll {
8873 self.request_autoscroll(autoscroll, cx);
8874 }
8875 }
8876
8877 pub fn remove_blocks(
8878 &mut self,
8879 block_ids: HashSet<BlockId>,
8880 autoscroll: Option<Autoscroll>,
8881 cx: &mut ViewContext<Self>,
8882 ) {
8883 self.display_map.update(cx, |display_map, cx| {
8884 display_map.remove_blocks(block_ids, cx)
8885 });
8886 if let Some(autoscroll) = autoscroll {
8887 self.request_autoscroll(autoscroll, cx);
8888 }
8889 }
8890
8891 pub fn longest_row(&self, cx: &mut AppContext) -> u32 {
8892 self.display_map
8893 .update(cx, |map, cx| map.snapshot(cx))
8894 .longest_row()
8895 }
8896
8897 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
8898 self.display_map
8899 .update(cx, |map, cx| map.snapshot(cx))
8900 .max_point()
8901 }
8902
8903 pub fn text(&self, cx: &AppContext) -> String {
8904 self.buffer.read(cx).read(cx).text()
8905 }
8906
8907 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
8908 let text = self.text(cx);
8909 let text = text.trim();
8910
8911 if text.is_empty() {
8912 return None;
8913 }
8914
8915 Some(text.to_string())
8916 }
8917
8918 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
8919 self.transact(cx, |this, cx| {
8920 this.buffer
8921 .read(cx)
8922 .as_singleton()
8923 .expect("you can only call set_text on editors for singleton buffers")
8924 .update(cx, |buffer, cx| buffer.set_text(text, cx));
8925 });
8926 }
8927
8928 pub fn display_text(&self, cx: &mut AppContext) -> String {
8929 self.display_map
8930 .update(cx, |map, cx| map.snapshot(cx))
8931 .text()
8932 }
8933
8934 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
8935 let mut wrap_guides = smallvec::smallvec![];
8936
8937 if self.show_wrap_guides == Some(false) {
8938 return wrap_guides;
8939 }
8940
8941 let settings = self.buffer.read(cx).settings_at(0, cx);
8942 if settings.show_wrap_guides {
8943 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
8944 wrap_guides.push((soft_wrap as usize, true));
8945 }
8946 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
8947 }
8948
8949 wrap_guides
8950 }
8951
8952 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
8953 let settings = self.buffer.read(cx).settings_at(0, cx);
8954 let mode = self
8955 .soft_wrap_mode_override
8956 .unwrap_or_else(|| settings.soft_wrap);
8957 match mode {
8958 language_settings::SoftWrap::None => SoftWrap::None,
8959 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
8960 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
8961 language_settings::SoftWrap::PreferredLineLength => {
8962 SoftWrap::Column(settings.preferred_line_length)
8963 }
8964 }
8965 }
8966
8967 pub fn set_soft_wrap_mode(
8968 &mut self,
8969 mode: language_settings::SoftWrap,
8970 cx: &mut ViewContext<Self>,
8971 ) {
8972 self.soft_wrap_mode_override = Some(mode);
8973 cx.notify();
8974 }
8975
8976 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
8977 let rem_size = cx.rem_size();
8978 self.display_map.update(cx, |map, cx| {
8979 map.set_font(
8980 style.text.font(),
8981 style.text.font_size.to_pixels(rem_size),
8982 cx,
8983 )
8984 });
8985 self.style = Some(style);
8986 }
8987
8988 pub fn style(&self) -> Option<&EditorStyle> {
8989 self.style.as_ref()
8990 }
8991
8992 // Called by the element. This method is not designed to be called outside of the editor
8993 // element's layout code because it does not notify when rewrapping is computed synchronously.
8994 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
8995 self.display_map
8996 .update(cx, |map, cx| map.set_wrap_width(width, cx))
8997 }
8998
8999 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9000 if self.soft_wrap_mode_override.is_some() {
9001 self.soft_wrap_mode_override.take();
9002 } else {
9003 let soft_wrap = match self.soft_wrap_mode(cx) {
9004 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9005 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9006 language_settings::SoftWrap::PreferLine
9007 }
9008 };
9009 self.soft_wrap_mode_override = Some(soft_wrap);
9010 }
9011 cx.notify();
9012 }
9013
9014 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
9015 let mut editor_settings = EditorSettings::get_global(cx).clone();
9016 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
9017 EditorSettings::override_global(editor_settings, cx);
9018 }
9019
9020 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9021 self.show_gutter = show_gutter;
9022 cx.notify();
9023 }
9024
9025 pub fn set_show_wrap_guides(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
9026 self.show_wrap_guides = Some(show_gutter);
9027 cx.notify();
9028 }
9029
9030 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
9031 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9032 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9033 cx.reveal_path(&file.abs_path(cx));
9034 }
9035 }
9036 }
9037
9038 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
9039 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9040 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9041 if let Some(path) = file.abs_path(cx).to_str() {
9042 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9043 }
9044 }
9045 }
9046 }
9047
9048 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
9049 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
9050 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
9051 if let Some(path) = file.path().to_str() {
9052 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
9053 }
9054 }
9055 }
9056 }
9057
9058 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
9059 self.show_git_blame_gutter = !self.show_git_blame_gutter;
9060
9061 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
9062 self.start_git_blame(true, cx);
9063 }
9064
9065 cx.notify();
9066 }
9067
9068 pub fn toggle_git_blame_inline(
9069 &mut self,
9070 _: &ToggleGitBlameInline,
9071 cx: &mut ViewContext<Self>,
9072 ) {
9073 self.toggle_git_blame_inline_internal(true, cx);
9074 cx.notify();
9075 }
9076
9077 pub fn git_blame_inline_enabled(&self) -> bool {
9078 self.git_blame_inline_enabled
9079 }
9080
9081 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9082 if let Some(project) = self.project.as_ref() {
9083 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
9084 return;
9085 };
9086
9087 if buffer.read(cx).file().is_none() {
9088 return;
9089 }
9090
9091 let focused = self.focus_handle(cx).contains_focused(cx);
9092
9093 let project = project.clone();
9094 let blame =
9095 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
9096 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
9097 self.blame = Some(blame);
9098 }
9099 }
9100
9101 fn toggle_git_blame_inline_internal(
9102 &mut self,
9103 user_triggered: bool,
9104 cx: &mut ViewContext<Self>,
9105 ) {
9106 if self.git_blame_inline_enabled {
9107 self.git_blame_inline_enabled = false;
9108 self.show_git_blame_inline = false;
9109 self.show_git_blame_inline_delay_task.take();
9110 } else {
9111 self.git_blame_inline_enabled = true;
9112 self.start_git_blame_inline(user_triggered, cx);
9113 }
9114
9115 cx.notify();
9116 }
9117
9118 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
9119 self.start_git_blame(user_triggered, cx);
9120
9121 if ProjectSettings::get_global(cx)
9122 .git
9123 .inline_blame_delay()
9124 .is_some()
9125 {
9126 self.start_inline_blame_timer(cx);
9127 } else {
9128 self.show_git_blame_inline = true
9129 }
9130 }
9131
9132 pub fn blame(&self) -> Option<&Model<GitBlame>> {
9133 self.blame.as_ref()
9134 }
9135
9136 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
9137 self.show_git_blame_gutter && self.has_blame_entries(cx)
9138 }
9139
9140 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
9141 self.show_git_blame_inline
9142 && self.focus_handle.is_focused(cx)
9143 && !self.newest_selection_head_on_empty_line(cx)
9144 && self.has_blame_entries(cx)
9145 }
9146
9147 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
9148 self.blame()
9149 .map_or(false, |blame| blame.read(cx).has_generated_entries())
9150 }
9151
9152 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
9153 let cursor_anchor = self.selections.newest_anchor().head();
9154
9155 let snapshot = self.buffer.read(cx).snapshot(cx);
9156 let buffer_row = cursor_anchor.to_point(&snapshot).row;
9157
9158 snapshot.line_len(buffer_row) == 0
9159 }
9160
9161 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
9162 let (path, repo) = maybe!({
9163 let project_handle = self.project.as_ref()?.clone();
9164 let project = project_handle.read(cx);
9165 let buffer = self.buffer().read(cx).as_singleton()?;
9166 let path = buffer
9167 .read(cx)
9168 .file()?
9169 .as_local()?
9170 .path()
9171 .to_str()?
9172 .to_string();
9173 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
9174 Some((path, repo))
9175 })
9176 .ok_or_else(|| anyhow!("unable to open git repository"))?;
9177
9178 const REMOTE_NAME: &str = "origin";
9179 let origin_url = repo
9180 .lock()
9181 .remote_url(REMOTE_NAME)
9182 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
9183 let sha = repo
9184 .lock()
9185 .head_sha()
9186 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
9187 let selections = self.selections.all::<Point>(cx);
9188 let selection = selections.iter().peekable().next();
9189
9190 build_permalink(BuildPermalinkParams {
9191 remote_url: &origin_url,
9192 sha: &sha,
9193 path: &path,
9194 selection: selection.map(|selection| {
9195 let range = selection.range();
9196 let start = range.start.row;
9197 let end = range.end.row;
9198 start..end
9199 }),
9200 })
9201 }
9202
9203 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
9204 let permalink = self.get_permalink_to_line(cx);
9205
9206 match permalink {
9207 Ok(permalink) => {
9208 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
9209 }
9210 Err(err) => {
9211 let message = format!("Failed to copy permalink: {err}");
9212
9213 Err::<(), anyhow::Error>(err).log_err();
9214
9215 if let Some(workspace) = self.workspace() {
9216 workspace.update(cx, |workspace, cx| {
9217 struct CopyPermalinkToLine;
9218
9219 workspace.show_toast(
9220 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
9221 cx,
9222 )
9223 })
9224 }
9225 }
9226 }
9227 }
9228
9229 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
9230 let permalink = self.get_permalink_to_line(cx);
9231
9232 match permalink {
9233 Ok(permalink) => {
9234 cx.open_url(permalink.as_ref());
9235 }
9236 Err(err) => {
9237 let message = format!("Failed to open permalink: {err}");
9238
9239 Err::<(), anyhow::Error>(err).log_err();
9240
9241 if let Some(workspace) = self.workspace() {
9242 workspace.update(cx, |workspace, cx| {
9243 struct OpenPermalinkToLine;
9244
9245 workspace.show_toast(
9246 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
9247 cx,
9248 )
9249 })
9250 }
9251 }
9252 }
9253 }
9254
9255 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
9256 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
9257 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
9258 pub fn highlight_rows<T: 'static>(
9259 &mut self,
9260 rows: Range<Anchor>,
9261 color: Option<Hsla>,
9262 cx: &mut ViewContext<Self>,
9263 ) {
9264 let multi_buffer_snapshot = self.buffer().read(cx).snapshot(cx);
9265 match self.highlighted_rows.entry(TypeId::of::<T>()) {
9266 hash_map::Entry::Occupied(o) => {
9267 let row_highlights = o.into_mut();
9268 let existing_highlight_index =
9269 row_highlights.binary_search_by(|(_, highlight_range, _)| {
9270 highlight_range
9271 .start
9272 .cmp(&rows.start, &multi_buffer_snapshot)
9273 .then(highlight_range.end.cmp(&rows.end, &multi_buffer_snapshot))
9274 });
9275 match color {
9276 Some(color) => {
9277 let insert_index = match existing_highlight_index {
9278 Ok(i) => i,
9279 Err(i) => i,
9280 };
9281 row_highlights.insert(
9282 insert_index,
9283 (post_inc(&mut self.highlight_order), rows, color),
9284 );
9285 }
9286 None => {
9287 if let Ok(i) = existing_highlight_index {
9288 row_highlights.remove(i);
9289 }
9290 }
9291 }
9292 }
9293 hash_map::Entry::Vacant(v) => {
9294 if let Some(color) = color {
9295 v.insert(vec![(post_inc(&mut self.highlight_order), rows, color)]);
9296 }
9297 }
9298 }
9299 }
9300
9301 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
9302 pub fn clear_row_highlights<T: 'static>(&mut self) {
9303 self.highlighted_rows.remove(&TypeId::of::<T>());
9304 }
9305
9306 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
9307 pub fn highlighted_rows<T: 'static>(
9308 &self,
9309 ) -> Option<impl Iterator<Item = (&Range<Anchor>, &Hsla)>> {
9310 Some(
9311 self.highlighted_rows
9312 .get(&TypeId::of::<T>())?
9313 .iter()
9314 .map(|(_, range, color)| (range, color)),
9315 )
9316 }
9317
9318 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
9319 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
9320 /// Allows to ignore certain kinds of highlights.
9321 pub fn highlighted_display_rows(
9322 &mut self,
9323 exclude_highlights: HashSet<TypeId>,
9324 cx: &mut WindowContext,
9325 ) -> BTreeMap<u32, Hsla> {
9326 let snapshot = self.snapshot(cx);
9327 let mut used_highlight_orders = HashMap::default();
9328 self.highlighted_rows
9329 .iter()
9330 .filter(|(type_id, _)| !exclude_highlights.contains(type_id))
9331 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
9332 .fold(
9333 BTreeMap::<u32, Hsla>::new(),
9334 |mut unique_rows, (highlight_order, anchor_range, hsla)| {
9335 let start_row = anchor_range.start.to_display_point(&snapshot).row();
9336 let end_row = anchor_range.end.to_display_point(&snapshot).row();
9337 for row in start_row..=end_row {
9338 let used_index =
9339 used_highlight_orders.entry(row).or_insert(*highlight_order);
9340 if highlight_order >= used_index {
9341 *used_index = *highlight_order;
9342 unique_rows.insert(row, *hsla);
9343 }
9344 }
9345 unique_rows
9346 },
9347 )
9348 }
9349
9350 pub fn set_search_within_ranges(
9351 &mut self,
9352 ranges: &[Range<Anchor>],
9353 cx: &mut ViewContext<Self>,
9354 ) {
9355 self.highlight_background::<SearchWithinRange>(
9356 ranges,
9357 |colors| colors.editor_document_highlight_read_background,
9358 cx,
9359 )
9360 }
9361
9362 pub fn highlight_background<T: 'static>(
9363 &mut self,
9364 ranges: &[Range<Anchor>],
9365 color_fetcher: fn(&ThemeColors) -> Hsla,
9366 cx: &mut ViewContext<Self>,
9367 ) {
9368 let snapshot = self.snapshot(cx);
9369 // this is to try and catch a panic sooner
9370 for range in ranges {
9371 snapshot
9372 .buffer_snapshot
9373 .summary_for_anchor::<usize>(&range.start);
9374 snapshot
9375 .buffer_snapshot
9376 .summary_for_anchor::<usize>(&range.end);
9377 }
9378
9379 self.background_highlights
9380 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
9381 self.scrollbar_marker_state.dirty = true;
9382 cx.notify();
9383 }
9384
9385 pub fn clear_background_highlights<T: 'static>(
9386 &mut self,
9387 cx: &mut ViewContext<Self>,
9388 ) -> Option<BackgroundHighlight> {
9389 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
9390 if !text_highlights.1.is_empty() {
9391 self.scrollbar_marker_state.dirty = true;
9392 cx.notify();
9393 }
9394 Some(text_highlights)
9395 }
9396
9397 #[cfg(feature = "test-support")]
9398 pub fn all_text_background_highlights(
9399 &mut self,
9400 cx: &mut ViewContext<Self>,
9401 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9402 let snapshot = self.snapshot(cx);
9403 let buffer = &snapshot.buffer_snapshot;
9404 let start = buffer.anchor_before(0);
9405 let end = buffer.anchor_after(buffer.len());
9406 let theme = cx.theme().colors();
9407 self.background_highlights_in_range(start..end, &snapshot, theme)
9408 }
9409
9410 fn document_highlights_for_position<'a>(
9411 &'a self,
9412 position: Anchor,
9413 buffer: &'a MultiBufferSnapshot,
9414 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
9415 let read_highlights = self
9416 .background_highlights
9417 .get(&TypeId::of::<DocumentHighlightRead>())
9418 .map(|h| &h.1);
9419 let write_highlights = self
9420 .background_highlights
9421 .get(&TypeId::of::<DocumentHighlightWrite>())
9422 .map(|h| &h.1);
9423 let left_position = position.bias_left(buffer);
9424 let right_position = position.bias_right(buffer);
9425 read_highlights
9426 .into_iter()
9427 .chain(write_highlights)
9428 .flat_map(move |ranges| {
9429 let start_ix = match ranges.binary_search_by(|probe| {
9430 let cmp = probe.end.cmp(&left_position, buffer);
9431 if cmp.is_ge() {
9432 Ordering::Greater
9433 } else {
9434 Ordering::Less
9435 }
9436 }) {
9437 Ok(i) | Err(i) => i,
9438 };
9439
9440 ranges[start_ix..]
9441 .iter()
9442 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
9443 })
9444 }
9445
9446 pub fn has_background_highlights<T: 'static>(&self) -> bool {
9447 self.background_highlights
9448 .get(&TypeId::of::<T>())
9449 .map_or(false, |(_, highlights)| !highlights.is_empty())
9450 }
9451
9452 pub fn background_highlights_in_range(
9453 &self,
9454 search_range: Range<Anchor>,
9455 display_snapshot: &DisplaySnapshot,
9456 theme: &ThemeColors,
9457 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
9458 let mut results = Vec::new();
9459 for (color_fetcher, ranges) in self.background_highlights.values() {
9460 let color = color_fetcher(theme);
9461 let start_ix = match ranges.binary_search_by(|probe| {
9462 let cmp = probe
9463 .end
9464 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9465 if cmp.is_gt() {
9466 Ordering::Greater
9467 } else {
9468 Ordering::Less
9469 }
9470 }) {
9471 Ok(i) | Err(i) => i,
9472 };
9473 for range in &ranges[start_ix..] {
9474 if range
9475 .start
9476 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9477 .is_ge()
9478 {
9479 break;
9480 }
9481
9482 let start = range.start.to_display_point(&display_snapshot);
9483 let end = range.end.to_display_point(&display_snapshot);
9484 results.push((start..end, color))
9485 }
9486 }
9487 results
9488 }
9489
9490 pub fn background_highlight_row_ranges<T: 'static>(
9491 &self,
9492 search_range: Range<Anchor>,
9493 display_snapshot: &DisplaySnapshot,
9494 count: usize,
9495 ) -> Vec<RangeInclusive<DisplayPoint>> {
9496 let mut results = Vec::new();
9497 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
9498 return vec![];
9499 };
9500
9501 let start_ix = match ranges.binary_search_by(|probe| {
9502 let cmp = probe
9503 .end
9504 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
9505 if cmp.is_gt() {
9506 Ordering::Greater
9507 } else {
9508 Ordering::Less
9509 }
9510 }) {
9511 Ok(i) | Err(i) => i,
9512 };
9513 let mut push_region = |start: Option<Point>, end: Option<Point>| {
9514 if let (Some(start_display), Some(end_display)) = (start, end) {
9515 results.push(
9516 start_display.to_display_point(display_snapshot)
9517 ..=end_display.to_display_point(display_snapshot),
9518 );
9519 }
9520 };
9521 let mut start_row: Option<Point> = None;
9522 let mut end_row: Option<Point> = None;
9523 if ranges.len() > count {
9524 return Vec::new();
9525 }
9526 for range in &ranges[start_ix..] {
9527 if range
9528 .start
9529 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
9530 .is_ge()
9531 {
9532 break;
9533 }
9534 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
9535 if let Some(current_row) = &end_row {
9536 if end.row == current_row.row {
9537 continue;
9538 }
9539 }
9540 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
9541 if start_row.is_none() {
9542 assert_eq!(end_row, None);
9543 start_row = Some(start);
9544 end_row = Some(end);
9545 continue;
9546 }
9547 if let Some(current_end) = end_row.as_mut() {
9548 if start.row > current_end.row + 1 {
9549 push_region(start_row, end_row);
9550 start_row = Some(start);
9551 end_row = Some(end);
9552 } else {
9553 // Merge two hunks.
9554 *current_end = end;
9555 }
9556 } else {
9557 unreachable!();
9558 }
9559 }
9560 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
9561 push_region(start_row, end_row);
9562 results
9563 }
9564
9565 /// Get the text ranges corresponding to the redaction query
9566 pub fn redacted_ranges(
9567 &self,
9568 search_range: Range<Anchor>,
9569 display_snapshot: &DisplaySnapshot,
9570 cx: &WindowContext,
9571 ) -> Vec<Range<DisplayPoint>> {
9572 display_snapshot
9573 .buffer_snapshot
9574 .redacted_ranges(search_range, |file| {
9575 if let Some(file) = file {
9576 file.is_private()
9577 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
9578 } else {
9579 false
9580 }
9581 })
9582 .map(|range| {
9583 range.start.to_display_point(display_snapshot)
9584 ..range.end.to_display_point(display_snapshot)
9585 })
9586 .collect()
9587 }
9588
9589 pub fn highlight_text<T: 'static>(
9590 &mut self,
9591 ranges: Vec<Range<Anchor>>,
9592 style: HighlightStyle,
9593 cx: &mut ViewContext<Self>,
9594 ) {
9595 self.display_map.update(cx, |map, _| {
9596 map.highlight_text(TypeId::of::<T>(), ranges, style)
9597 });
9598 cx.notify();
9599 }
9600
9601 pub(crate) fn highlight_inlays<T: 'static>(
9602 &mut self,
9603 highlights: Vec<InlayHighlight>,
9604 style: HighlightStyle,
9605 cx: &mut ViewContext<Self>,
9606 ) {
9607 self.display_map.update(cx, |map, _| {
9608 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
9609 });
9610 cx.notify();
9611 }
9612
9613 pub fn text_highlights<'a, T: 'static>(
9614 &'a self,
9615 cx: &'a AppContext,
9616 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
9617 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
9618 }
9619
9620 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
9621 let cleared = self
9622 .display_map
9623 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
9624 if cleared {
9625 cx.notify();
9626 }
9627 }
9628
9629 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
9630 (self.read_only(cx) || self.blink_manager.read(cx).visible())
9631 && self.focus_handle.is_focused(cx)
9632 }
9633
9634 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
9635 cx.notify();
9636 }
9637
9638 fn on_buffer_event(
9639 &mut self,
9640 multibuffer: Model<MultiBuffer>,
9641 event: &multi_buffer::Event,
9642 cx: &mut ViewContext<Self>,
9643 ) {
9644 match event {
9645 multi_buffer::Event::Edited {
9646 singleton_buffer_edited,
9647 } => {
9648 self.scrollbar_marker_state.dirty = true;
9649 self.refresh_active_diagnostics(cx);
9650 self.refresh_code_actions(cx);
9651 if self.has_active_inline_completion(cx) {
9652 self.update_visible_inline_completion(cx);
9653 }
9654 cx.emit(EditorEvent::BufferEdited);
9655 cx.emit(SearchEvent::MatchesInvalidated);
9656
9657 if *singleton_buffer_edited {
9658 if let Some(project) = &self.project {
9659 let project = project.read(cx);
9660 let languages_affected = multibuffer
9661 .read(cx)
9662 .all_buffers()
9663 .into_iter()
9664 .filter_map(|buffer| {
9665 let buffer = buffer.read(cx);
9666 let language = buffer.language()?;
9667 if project.is_local()
9668 && project.language_servers_for_buffer(buffer, cx).count() == 0
9669 {
9670 None
9671 } else {
9672 Some(language)
9673 }
9674 })
9675 .cloned()
9676 .collect::<HashSet<_>>();
9677 if !languages_affected.is_empty() {
9678 self.refresh_inlay_hints(
9679 InlayHintRefreshReason::BufferEdited(languages_affected),
9680 cx,
9681 );
9682 }
9683 }
9684 }
9685
9686 let Some(project) = &self.project else { return };
9687 let telemetry = project.read(cx).client().telemetry().clone();
9688 telemetry.log_edit_event("editor");
9689 }
9690 multi_buffer::Event::ExcerptsAdded {
9691 buffer,
9692 predecessor,
9693 excerpts,
9694 } => {
9695 cx.emit(EditorEvent::ExcerptsAdded {
9696 buffer: buffer.clone(),
9697 predecessor: *predecessor,
9698 excerpts: excerpts.clone(),
9699 });
9700 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
9701 }
9702 multi_buffer::Event::ExcerptsRemoved { ids } => {
9703 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
9704 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
9705 }
9706 multi_buffer::Event::Reparsed => cx.emit(EditorEvent::Reparsed),
9707 multi_buffer::Event::LanguageChanged => {
9708 cx.emit(EditorEvent::Reparsed);
9709 cx.notify();
9710 }
9711 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
9712 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
9713 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
9714 cx.emit(EditorEvent::TitleChanged)
9715 }
9716 multi_buffer::Event::DiffBaseChanged => {
9717 self.scrollbar_marker_state.dirty = true;
9718 cx.emit(EditorEvent::DiffBaseChanged);
9719 cx.notify();
9720 }
9721 multi_buffer::Event::DiffUpdated { buffer } => {
9722 self.sync_expanded_diff_hunks(buffer.clone(), cx);
9723 cx.notify();
9724 }
9725 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
9726 multi_buffer::Event::DiagnosticsUpdated => {
9727 self.refresh_active_diagnostics(cx);
9728 self.scrollbar_marker_state.dirty = true;
9729 cx.notify();
9730 }
9731 _ => {}
9732 };
9733 }
9734
9735 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
9736 cx.notify();
9737 }
9738
9739 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
9740 self.refresh_inline_completion(true, cx);
9741 self.refresh_inlay_hints(
9742 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
9743 self.selections.newest_anchor().head(),
9744 &self.buffer.read(cx).snapshot(cx),
9745 cx,
9746 )),
9747 cx,
9748 );
9749 let editor_settings = EditorSettings::get_global(cx);
9750 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
9751 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
9752
9753 if self.mode == EditorMode::Full {
9754 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
9755 if self.git_blame_inline_enabled != inline_blame_enabled {
9756 self.toggle_git_blame_inline_internal(false, cx);
9757 }
9758 }
9759
9760 cx.notify();
9761 }
9762
9763 pub fn set_searchable(&mut self, searchable: bool) {
9764 self.searchable = searchable;
9765 }
9766
9767 pub fn searchable(&self) -> bool {
9768 self.searchable
9769 }
9770
9771 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
9772 self.open_excerpts_common(true, cx)
9773 }
9774
9775 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
9776 self.open_excerpts_common(false, cx)
9777 }
9778
9779 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
9780 let buffer = self.buffer.read(cx);
9781 if buffer.is_singleton() {
9782 cx.propagate();
9783 return;
9784 }
9785
9786 let Some(workspace) = self.workspace() else {
9787 cx.propagate();
9788 return;
9789 };
9790
9791 let mut new_selections_by_buffer = HashMap::default();
9792 for selection in self.selections.all::<usize>(cx) {
9793 for (buffer, mut range, _) in
9794 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
9795 {
9796 if selection.reversed {
9797 mem::swap(&mut range.start, &mut range.end);
9798 }
9799 new_selections_by_buffer
9800 .entry(buffer)
9801 .or_insert(Vec::new())
9802 .push(range)
9803 }
9804 }
9805
9806 // We defer the pane interaction because we ourselves are a workspace item
9807 // and activating a new item causes the pane to call a method on us reentrantly,
9808 // which panics if we're on the stack.
9809 cx.window_context().defer(move |cx| {
9810 workspace.update(cx, |workspace, cx| {
9811 let pane = if split {
9812 workspace.adjacent_pane(cx)
9813 } else {
9814 workspace.active_pane().clone()
9815 };
9816
9817 for (buffer, ranges) in new_selections_by_buffer {
9818 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
9819 editor.update(cx, |editor, cx| {
9820 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
9821 s.select_ranges(ranges);
9822 });
9823 });
9824 }
9825 })
9826 });
9827 }
9828
9829 fn jump(
9830 &mut self,
9831 path: ProjectPath,
9832 position: Point,
9833 anchor: language::Anchor,
9834 offset_from_top: u32,
9835 cx: &mut ViewContext<Self>,
9836 ) {
9837 let workspace = self.workspace();
9838 cx.spawn(|_, mut cx| async move {
9839 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
9840 let editor = workspace.update(&mut cx, |workspace, cx| {
9841 // Reset the preview item id before opening the new item
9842 workspace.active_pane().update(cx, |pane, cx| {
9843 pane.set_preview_item_id(None, cx);
9844 });
9845 workspace.open_path_preview(path, None, true, true, cx)
9846 })?;
9847 let editor = editor
9848 .await?
9849 .downcast::<Editor>()
9850 .ok_or_else(|| anyhow!("opened item was not an editor"))?
9851 .downgrade();
9852 editor.update(&mut cx, |editor, cx| {
9853 let buffer = editor
9854 .buffer()
9855 .read(cx)
9856 .as_singleton()
9857 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
9858 let buffer = buffer.read(cx);
9859 let cursor = if buffer.can_resolve(&anchor) {
9860 language::ToPoint::to_point(&anchor, buffer)
9861 } else {
9862 buffer.clip_point(position, Bias::Left)
9863 };
9864
9865 let nav_history = editor.nav_history.take();
9866 editor.change_selections(
9867 Some(Autoscroll::top_relative(offset_from_top as usize)),
9868 cx,
9869 |s| {
9870 s.select_ranges([cursor..cursor]);
9871 },
9872 );
9873 editor.nav_history = nav_history;
9874
9875 anyhow::Ok(())
9876 })??;
9877
9878 anyhow::Ok(())
9879 })
9880 .detach_and_log_err(cx);
9881 }
9882
9883 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
9884 let snapshot = self.buffer.read(cx).read(cx);
9885 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
9886 Some(
9887 ranges
9888 .iter()
9889 .map(move |range| {
9890 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
9891 })
9892 .collect(),
9893 )
9894 }
9895
9896 fn selection_replacement_ranges(
9897 &self,
9898 range: Range<OffsetUtf16>,
9899 cx: &AppContext,
9900 ) -> Vec<Range<OffsetUtf16>> {
9901 let selections = self.selections.all::<OffsetUtf16>(cx);
9902 let newest_selection = selections
9903 .iter()
9904 .max_by_key(|selection| selection.id)
9905 .unwrap();
9906 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
9907 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
9908 let snapshot = self.buffer.read(cx).read(cx);
9909 selections
9910 .into_iter()
9911 .map(|mut selection| {
9912 selection.start.0 =
9913 (selection.start.0 as isize).saturating_add(start_delta) as usize;
9914 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
9915 snapshot.clip_offset_utf16(selection.start, Bias::Left)
9916 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
9917 })
9918 .collect()
9919 }
9920
9921 fn report_editor_event(
9922 &self,
9923 operation: &'static str,
9924 file_extension: Option<String>,
9925 cx: &AppContext,
9926 ) {
9927 if cfg!(any(test, feature = "test-support")) {
9928 return;
9929 }
9930
9931 let Some(project) = &self.project else { return };
9932
9933 // If None, we are in a file without an extension
9934 let file = self
9935 .buffer
9936 .read(cx)
9937 .as_singleton()
9938 .and_then(|b| b.read(cx).file());
9939 let file_extension = file_extension.or(file
9940 .as_ref()
9941 .and_then(|file| Path::new(file.file_name(cx)).extension())
9942 .and_then(|e| e.to_str())
9943 .map(|a| a.to_string()));
9944
9945 let vim_mode = cx
9946 .global::<SettingsStore>()
9947 .raw_user_settings()
9948 .get("vim_mode")
9949 == Some(&serde_json::Value::Bool(true));
9950 let copilot_enabled = all_language_settings(file, cx).copilot_enabled(None, None);
9951 let copilot_enabled_for_language = self
9952 .buffer
9953 .read(cx)
9954 .settings_at(0, cx)
9955 .show_copilot_suggestions;
9956
9957 let telemetry = project.read(cx).client().telemetry().clone();
9958 telemetry.report_editor_event(
9959 file_extension,
9960 vim_mode,
9961 operation,
9962 copilot_enabled,
9963 copilot_enabled_for_language,
9964 )
9965 }
9966
9967 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
9968 /// with each line being an array of {text, highlight} objects.
9969 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
9970 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
9971 return;
9972 };
9973
9974 #[derive(Serialize)]
9975 struct Chunk<'a> {
9976 text: String,
9977 highlight: Option<&'a str>,
9978 }
9979
9980 let snapshot = buffer.read(cx).snapshot();
9981 let range = self
9982 .selected_text_range(cx)
9983 .and_then(|selected_range| {
9984 if selected_range.is_empty() {
9985 None
9986 } else {
9987 Some(selected_range)
9988 }
9989 })
9990 .unwrap_or_else(|| 0..snapshot.len());
9991
9992 let chunks = snapshot.chunks(range, true);
9993 let mut lines = Vec::new();
9994 let mut line: VecDeque<Chunk> = VecDeque::new();
9995
9996 let Some(style) = self.style.as_ref() else {
9997 return;
9998 };
9999
10000 for chunk in chunks {
10001 let highlight = chunk
10002 .syntax_highlight_id
10003 .and_then(|id| id.name(&style.syntax));
10004 let mut chunk_lines = chunk.text.split('\n').peekable();
10005 while let Some(text) = chunk_lines.next() {
10006 let mut merged_with_last_token = false;
10007 if let Some(last_token) = line.back_mut() {
10008 if last_token.highlight == highlight {
10009 last_token.text.push_str(text);
10010 merged_with_last_token = true;
10011 }
10012 }
10013
10014 if !merged_with_last_token {
10015 line.push_back(Chunk {
10016 text: text.into(),
10017 highlight,
10018 });
10019 }
10020
10021 if chunk_lines.peek().is_some() {
10022 if line.len() > 1 && line.front().unwrap().text.is_empty() {
10023 line.pop_front();
10024 }
10025 if line.len() > 1 && line.back().unwrap().text.is_empty() {
10026 line.pop_back();
10027 }
10028
10029 lines.push(mem::take(&mut line));
10030 }
10031 }
10032 }
10033
10034 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
10035 return;
10036 };
10037 cx.write_to_clipboard(ClipboardItem::new(lines));
10038 }
10039
10040 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
10041 &self.inlay_hint_cache
10042 }
10043
10044 pub fn replay_insert_event(
10045 &mut self,
10046 text: &str,
10047 relative_utf16_range: Option<Range<isize>>,
10048 cx: &mut ViewContext<Self>,
10049 ) {
10050 if !self.input_enabled {
10051 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10052 return;
10053 }
10054 if let Some(relative_utf16_range) = relative_utf16_range {
10055 let selections = self.selections.all::<OffsetUtf16>(cx);
10056 self.change_selections(None, cx, |s| {
10057 let new_ranges = selections.into_iter().map(|range| {
10058 let start = OffsetUtf16(
10059 range
10060 .head()
10061 .0
10062 .saturating_add_signed(relative_utf16_range.start),
10063 );
10064 let end = OffsetUtf16(
10065 range
10066 .head()
10067 .0
10068 .saturating_add_signed(relative_utf16_range.end),
10069 );
10070 start..end
10071 });
10072 s.select_ranges(new_ranges);
10073 });
10074 }
10075
10076 self.handle_input(text, cx);
10077 }
10078
10079 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
10080 let Some(project) = self.project.as_ref() else {
10081 return false;
10082 };
10083 let project = project.read(cx);
10084
10085 let mut supports = false;
10086 self.buffer().read(cx).for_each_buffer(|buffer| {
10087 if !supports {
10088 supports = project
10089 .language_servers_for_buffer(buffer.read(cx), cx)
10090 .any(
10091 |(_, server)| match server.capabilities().inlay_hint_provider {
10092 Some(lsp::OneOf::Left(enabled)) => enabled,
10093 Some(lsp::OneOf::Right(_)) => true,
10094 None => false,
10095 },
10096 )
10097 }
10098 });
10099 supports
10100 }
10101
10102 pub fn focus(&self, cx: &mut WindowContext) {
10103 cx.focus(&self.focus_handle)
10104 }
10105
10106 pub fn is_focused(&self, cx: &WindowContext) -> bool {
10107 self.focus_handle.is_focused(cx)
10108 }
10109
10110 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
10111 cx.emit(EditorEvent::Focused);
10112
10113 if let Some(rename) = self.pending_rename.as_ref() {
10114 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
10115 cx.focus(&rename_editor_focus_handle);
10116 } else {
10117 if let Some(blame) = self.blame.as_ref() {
10118 blame.update(cx, GitBlame::focus)
10119 }
10120
10121 self.blink_manager.update(cx, BlinkManager::enable);
10122 self.show_cursor_names(cx);
10123 self.buffer.update(cx, |buffer, cx| {
10124 buffer.finalize_last_transaction(cx);
10125 if self.leader_peer_id.is_none() {
10126 buffer.set_active_selections(
10127 &self.selections.disjoint_anchors(),
10128 self.selections.line_mode,
10129 self.cursor_shape,
10130 cx,
10131 );
10132 }
10133 });
10134 }
10135 }
10136
10137 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
10138 self.blink_manager.update(cx, BlinkManager::disable);
10139 self.buffer
10140 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
10141
10142 if let Some(blame) = self.blame.as_ref() {
10143 blame.update(cx, GitBlame::blur)
10144 }
10145 self.hide_context_menu(cx);
10146 hide_hover(self, cx);
10147 cx.emit(EditorEvent::Blurred);
10148 cx.notify();
10149 }
10150
10151 pub fn register_action<A: Action>(
10152 &mut self,
10153 listener: impl Fn(&A, &mut WindowContext) + 'static,
10154 ) -> &mut Self {
10155 let listener = Arc::new(listener);
10156
10157 self.editor_actions.push(Box::new(move |cx| {
10158 let _view = cx.view().clone();
10159 let cx = cx.window_context();
10160 let listener = listener.clone();
10161 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
10162 let action = action.downcast_ref().unwrap();
10163 if phase == DispatchPhase::Bubble {
10164 listener(action, cx)
10165 }
10166 })
10167 }));
10168 self
10169 }
10170}
10171
10172fn hunks_for_selections(
10173 multi_buffer_snapshot: &MultiBufferSnapshot,
10174 selections: &[Selection<Anchor>],
10175) -> Vec<DiffHunk<u32>> {
10176 let mut hunks = Vec::with_capacity(selections.len());
10177 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
10178 HashMap::default();
10179 let display_rows_for_selections = selections.iter().map(|selection| {
10180 let head = selection.head();
10181 let tail = selection.tail();
10182 let start = tail.to_point(&multi_buffer_snapshot).row;
10183 let end = head.to_point(&multi_buffer_snapshot).row;
10184 if start > end {
10185 end..start
10186 } else {
10187 start..end
10188 }
10189 });
10190
10191 for selected_multi_buffer_rows in display_rows_for_selections {
10192 let query_rows = selected_multi_buffer_rows.start..selected_multi_buffer_rows.end + 1;
10193 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
10194 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
10195 // when the caret is just above or just below the deleted hunk.
10196 let allow_adjacent = hunk.status() == DiffHunkStatus::Removed;
10197 let related_to_selection = if allow_adjacent {
10198 hunk.associated_range.overlaps(&query_rows)
10199 || hunk.associated_range.start == query_rows.end
10200 || hunk.associated_range.end == query_rows.start
10201 } else {
10202 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
10203 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
10204 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
10205 || selected_multi_buffer_rows.end == hunk.associated_range.start
10206 };
10207 if related_to_selection {
10208 if !processed_buffer_rows
10209 .entry(hunk.buffer_id)
10210 .or_default()
10211 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
10212 {
10213 continue;
10214 }
10215 hunks.push(hunk);
10216 }
10217 }
10218 }
10219
10220 hunks
10221}
10222
10223pub trait CollaborationHub {
10224 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
10225 fn user_participant_indices<'a>(
10226 &self,
10227 cx: &'a AppContext,
10228 ) -> &'a HashMap<u64, ParticipantIndex>;
10229 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
10230}
10231
10232impl CollaborationHub for Model<Project> {
10233 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
10234 self.read(cx).collaborators()
10235 }
10236
10237 fn user_participant_indices<'a>(
10238 &self,
10239 cx: &'a AppContext,
10240 ) -> &'a HashMap<u64, ParticipantIndex> {
10241 self.read(cx).user_store().read(cx).participant_indices()
10242 }
10243
10244 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
10245 let this = self.read(cx);
10246 let user_ids = this.collaborators().values().map(|c| c.user_id);
10247 this.user_store().read_with(cx, |user_store, cx| {
10248 user_store.participant_names(user_ids, cx)
10249 })
10250 }
10251}
10252
10253pub trait CompletionProvider {
10254 fn completions(
10255 &self,
10256 buffer: &Model<Buffer>,
10257 buffer_position: text::Anchor,
10258 cx: &mut ViewContext<Editor>,
10259 ) -> Task<Result<Vec<Completion>>>;
10260
10261 fn resolve_completions(
10262 &self,
10263 buffer: Model<Buffer>,
10264 completion_indices: Vec<usize>,
10265 completions: Arc<RwLock<Box<[Completion]>>>,
10266 cx: &mut ViewContext<Editor>,
10267 ) -> Task<Result<bool>>;
10268
10269 fn apply_additional_edits_for_completion(
10270 &self,
10271 buffer: Model<Buffer>,
10272 completion: Completion,
10273 push_to_history: bool,
10274 cx: &mut ViewContext<Editor>,
10275 ) -> Task<Result<Option<language::Transaction>>>;
10276}
10277
10278impl CompletionProvider for Model<Project> {
10279 fn completions(
10280 &self,
10281 buffer: &Model<Buffer>,
10282 buffer_position: text::Anchor,
10283 cx: &mut ViewContext<Editor>,
10284 ) -> Task<Result<Vec<Completion>>> {
10285 self.update(cx, |project, cx| {
10286 project.completions(&buffer, buffer_position, cx)
10287 })
10288 }
10289
10290 fn resolve_completions(
10291 &self,
10292 buffer: Model<Buffer>,
10293 completion_indices: Vec<usize>,
10294 completions: Arc<RwLock<Box<[Completion]>>>,
10295 cx: &mut ViewContext<Editor>,
10296 ) -> Task<Result<bool>> {
10297 self.update(cx, |project, cx| {
10298 project.resolve_completions(buffer, completion_indices, completions, cx)
10299 })
10300 }
10301
10302 fn apply_additional_edits_for_completion(
10303 &self,
10304 buffer: Model<Buffer>,
10305 completion: Completion,
10306 push_to_history: bool,
10307 cx: &mut ViewContext<Editor>,
10308 ) -> Task<Result<Option<language::Transaction>>> {
10309 self.update(cx, |project, cx| {
10310 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
10311 })
10312 }
10313}
10314
10315fn inlay_hint_settings(
10316 location: Anchor,
10317 snapshot: &MultiBufferSnapshot,
10318 cx: &mut ViewContext<'_, Editor>,
10319) -> InlayHintSettings {
10320 let file = snapshot.file_at(location);
10321 let language = snapshot.language_at(location);
10322 let settings = all_language_settings(file, cx);
10323 settings
10324 .language(language.map(|l| l.name()).as_deref())
10325 .inlay_hints
10326}
10327
10328fn consume_contiguous_rows(
10329 contiguous_row_selections: &mut Vec<Selection<Point>>,
10330 selection: &Selection<Point>,
10331 display_map: &DisplaySnapshot,
10332 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
10333) -> (u32, u32) {
10334 contiguous_row_selections.push(selection.clone());
10335 let start_row = selection.start.row;
10336 let mut end_row = ending_row(selection, display_map);
10337
10338 while let Some(next_selection) = selections.peek() {
10339 if next_selection.start.row <= end_row {
10340 end_row = ending_row(next_selection, display_map);
10341 contiguous_row_selections.push(selections.next().unwrap().clone());
10342 } else {
10343 break;
10344 }
10345 }
10346 (start_row, end_row)
10347}
10348
10349fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> u32 {
10350 if next_selection.end.column > 0 || next_selection.is_empty() {
10351 display_map.next_line_boundary(next_selection.end).0.row + 1
10352 } else {
10353 next_selection.end.row
10354 }
10355}
10356
10357impl EditorSnapshot {
10358 pub fn remote_selections_in_range<'a>(
10359 &'a self,
10360 range: &'a Range<Anchor>,
10361 collaboration_hub: &dyn CollaborationHub,
10362 cx: &'a AppContext,
10363 ) -> impl 'a + Iterator<Item = RemoteSelection> {
10364 let participant_names = collaboration_hub.user_names(cx);
10365 let participant_indices = collaboration_hub.user_participant_indices(cx);
10366 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
10367 let collaborators_by_replica_id = collaborators_by_peer_id
10368 .iter()
10369 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
10370 .collect::<HashMap<_, _>>();
10371 self.buffer_snapshot
10372 .remote_selections_in_range(range)
10373 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
10374 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
10375 let participant_index = participant_indices.get(&collaborator.user_id).copied();
10376 let user_name = participant_names.get(&collaborator.user_id).cloned();
10377 Some(RemoteSelection {
10378 replica_id,
10379 selection,
10380 cursor_shape,
10381 line_mode,
10382 participant_index,
10383 peer_id: collaborator.peer_id,
10384 user_name,
10385 })
10386 })
10387 }
10388
10389 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
10390 self.display_snapshot.buffer_snapshot.language_at(position)
10391 }
10392
10393 pub fn is_focused(&self) -> bool {
10394 self.is_focused
10395 }
10396
10397 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
10398 self.placeholder_text.as_ref()
10399 }
10400
10401 pub fn scroll_position(&self) -> gpui::Point<f32> {
10402 self.scroll_anchor.scroll_position(&self.display_snapshot)
10403 }
10404
10405 pub fn gutter_dimensions(
10406 &self,
10407 font_id: FontId,
10408 font_size: Pixels,
10409 em_width: Pixels,
10410 max_line_number_width: Pixels,
10411 cx: &AppContext,
10412 ) -> GutterDimensions {
10413 if !self.show_gutter {
10414 return GutterDimensions::default();
10415 }
10416 let descent = cx.text_system().descent(font_id, font_size);
10417
10418 let show_git_gutter = matches!(
10419 ProjectSettings::get_global(cx).git.git_gutter,
10420 Some(GitGutterSetting::TrackedFiles)
10421 );
10422 let gutter_settings = EditorSettings::get_global(cx).gutter;
10423 let gutter_lines_enabled = gutter_settings.line_numbers;
10424 let line_gutter_width = if gutter_lines_enabled {
10425 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
10426 let min_width_for_number_on_gutter = em_width * 4.0;
10427 max_line_number_width.max(min_width_for_number_on_gutter)
10428 } else {
10429 0.0.into()
10430 };
10431
10432 let git_blame_entries_width = self
10433 .render_git_blame_gutter
10434 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
10435
10436 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
10437 left_padding += if gutter_settings.code_actions {
10438 em_width * 3.0
10439 } else if show_git_gutter && gutter_lines_enabled {
10440 em_width * 2.0
10441 } else if show_git_gutter || gutter_lines_enabled {
10442 em_width
10443 } else {
10444 px(0.)
10445 };
10446
10447 let right_padding = if gutter_settings.folds && gutter_lines_enabled {
10448 em_width * 4.0
10449 } else if gutter_settings.folds {
10450 em_width * 3.0
10451 } else if gutter_lines_enabled {
10452 em_width
10453 } else {
10454 px(0.)
10455 };
10456
10457 GutterDimensions {
10458 left_padding,
10459 right_padding,
10460 width: line_gutter_width + left_padding + right_padding,
10461 margin: -descent,
10462 git_blame_entries_width,
10463 }
10464 }
10465}
10466
10467impl Deref for EditorSnapshot {
10468 type Target = DisplaySnapshot;
10469
10470 fn deref(&self) -> &Self::Target {
10471 &self.display_snapshot
10472 }
10473}
10474
10475#[derive(Clone, Debug, PartialEq, Eq)]
10476pub enum EditorEvent {
10477 InputIgnored {
10478 text: Arc<str>,
10479 },
10480 InputHandled {
10481 utf16_range_to_replace: Option<Range<isize>>,
10482 text: Arc<str>,
10483 },
10484 ExcerptsAdded {
10485 buffer: Model<Buffer>,
10486 predecessor: ExcerptId,
10487 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
10488 },
10489 ExcerptsRemoved {
10490 ids: Vec<ExcerptId>,
10491 },
10492 BufferEdited,
10493 Edited,
10494 Reparsed,
10495 Focused,
10496 Blurred,
10497 DirtyChanged,
10498 Saved,
10499 TitleChanged,
10500 DiffBaseChanged,
10501 SelectionsChanged {
10502 local: bool,
10503 },
10504 ScrollPositionChanged {
10505 local: bool,
10506 autoscroll: bool,
10507 },
10508 Closed,
10509 TransactionUndone {
10510 transaction_id: clock::Lamport,
10511 },
10512 TransactionBegun {
10513 transaction_id: clock::Lamport,
10514 },
10515}
10516
10517impl EventEmitter<EditorEvent> for Editor {}
10518
10519impl FocusableView for Editor {
10520 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
10521 self.focus_handle.clone()
10522 }
10523}
10524
10525impl Render for Editor {
10526 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
10527 let settings = ThemeSettings::get_global(cx);
10528
10529 let text_style = match self.mode {
10530 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
10531 color: cx.theme().colors().editor_foreground,
10532 font_family: settings.ui_font.family.clone(),
10533 font_features: settings.ui_font.features.clone(),
10534 font_size: rems(0.875).into(),
10535 font_weight: FontWeight::NORMAL,
10536 font_style: FontStyle::Normal,
10537 line_height: relative(settings.buffer_line_height.value()),
10538 background_color: None,
10539 underline: None,
10540 strikethrough: None,
10541 white_space: WhiteSpace::Normal,
10542 },
10543 EditorMode::Full => TextStyle {
10544 color: cx.theme().colors().editor_foreground,
10545 font_family: settings.buffer_font.family.clone(),
10546 font_features: settings.buffer_font.features.clone(),
10547 font_size: settings.buffer_font_size(cx).into(),
10548 font_weight: FontWeight::NORMAL,
10549 font_style: FontStyle::Normal,
10550 line_height: relative(settings.buffer_line_height.value()),
10551 background_color: None,
10552 underline: None,
10553 strikethrough: None,
10554 white_space: WhiteSpace::Normal,
10555 },
10556 };
10557
10558 let background = match self.mode {
10559 EditorMode::SingleLine => cx.theme().system().transparent,
10560 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
10561 EditorMode::Full => cx.theme().colors().editor_background,
10562 };
10563
10564 EditorElement::new(
10565 cx.view(),
10566 EditorStyle {
10567 background,
10568 local_player: cx.theme().players().local(),
10569 text: text_style,
10570 scrollbar_width: px(13.),
10571 syntax: cx.theme().syntax().clone(),
10572 status: cx.theme().status().clone(),
10573 inlay_hints_style: HighlightStyle {
10574 color: Some(cx.theme().status().hint),
10575 ..HighlightStyle::default()
10576 },
10577 suggestions_style: HighlightStyle {
10578 color: Some(cx.theme().status().predictive),
10579 ..HighlightStyle::default()
10580 },
10581 },
10582 )
10583 }
10584}
10585
10586impl ViewInputHandler for Editor {
10587 fn text_for_range(
10588 &mut self,
10589 range_utf16: Range<usize>,
10590 cx: &mut ViewContext<Self>,
10591 ) -> Option<String> {
10592 Some(
10593 self.buffer
10594 .read(cx)
10595 .read(cx)
10596 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
10597 .collect(),
10598 )
10599 }
10600
10601 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10602 // Prevent the IME menu from appearing when holding down an alphabetic key
10603 // while input is disabled.
10604 if !self.input_enabled {
10605 return None;
10606 }
10607
10608 let range = self.selections.newest::<OffsetUtf16>(cx).range();
10609 Some(range.start.0..range.end.0)
10610 }
10611
10612 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
10613 let snapshot = self.buffer.read(cx).read(cx);
10614 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
10615 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
10616 }
10617
10618 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
10619 self.clear_highlights::<InputComposition>(cx);
10620 self.ime_transaction.take();
10621 }
10622
10623 fn replace_text_in_range(
10624 &mut self,
10625 range_utf16: Option<Range<usize>>,
10626 text: &str,
10627 cx: &mut ViewContext<Self>,
10628 ) {
10629 if !self.input_enabled {
10630 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10631 return;
10632 }
10633
10634 self.transact(cx, |this, cx| {
10635 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
10636 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10637 Some(this.selection_replacement_ranges(range_utf16, cx))
10638 } else {
10639 this.marked_text_ranges(cx)
10640 };
10641
10642 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
10643 let newest_selection_id = this.selections.newest_anchor().id;
10644 this.selections
10645 .all::<OffsetUtf16>(cx)
10646 .iter()
10647 .zip(ranges_to_replace.iter())
10648 .find_map(|(selection, range)| {
10649 if selection.id == newest_selection_id {
10650 Some(
10651 (range.start.0 as isize - selection.head().0 as isize)
10652 ..(range.end.0 as isize - selection.head().0 as isize),
10653 )
10654 } else {
10655 None
10656 }
10657 })
10658 });
10659
10660 cx.emit(EditorEvent::InputHandled {
10661 utf16_range_to_replace: range_to_replace,
10662 text: text.into(),
10663 });
10664
10665 if let Some(new_selected_ranges) = new_selected_ranges {
10666 this.change_selections(None, cx, |selections| {
10667 selections.select_ranges(new_selected_ranges)
10668 });
10669 this.backspace(&Default::default(), cx);
10670 }
10671
10672 this.handle_input(text, cx);
10673 });
10674
10675 if let Some(transaction) = self.ime_transaction {
10676 self.buffer.update(cx, |buffer, cx| {
10677 buffer.group_until_transaction(transaction, cx);
10678 });
10679 }
10680
10681 self.unmark_text(cx);
10682 }
10683
10684 fn replace_and_mark_text_in_range(
10685 &mut self,
10686 range_utf16: Option<Range<usize>>,
10687 text: &str,
10688 new_selected_range_utf16: Option<Range<usize>>,
10689 cx: &mut ViewContext<Self>,
10690 ) {
10691 if !self.input_enabled {
10692 cx.emit(EditorEvent::InputIgnored { text: text.into() });
10693 return;
10694 }
10695
10696 let transaction = self.transact(cx, |this, cx| {
10697 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
10698 let snapshot = this.buffer.read(cx).read(cx);
10699 if let Some(relative_range_utf16) = range_utf16.as_ref() {
10700 for marked_range in &mut marked_ranges {
10701 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
10702 marked_range.start.0 += relative_range_utf16.start;
10703 marked_range.start =
10704 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
10705 marked_range.end =
10706 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
10707 }
10708 }
10709 Some(marked_ranges)
10710 } else if let Some(range_utf16) = range_utf16 {
10711 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
10712 Some(this.selection_replacement_ranges(range_utf16, cx))
10713 } else {
10714 None
10715 };
10716
10717 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
10718 let newest_selection_id = this.selections.newest_anchor().id;
10719 this.selections
10720 .all::<OffsetUtf16>(cx)
10721 .iter()
10722 .zip(ranges_to_replace.iter())
10723 .find_map(|(selection, range)| {
10724 if selection.id == newest_selection_id {
10725 Some(
10726 (range.start.0 as isize - selection.head().0 as isize)
10727 ..(range.end.0 as isize - selection.head().0 as isize),
10728 )
10729 } else {
10730 None
10731 }
10732 })
10733 });
10734
10735 cx.emit(EditorEvent::InputHandled {
10736 utf16_range_to_replace: range_to_replace,
10737 text: text.into(),
10738 });
10739
10740 if let Some(ranges) = ranges_to_replace {
10741 this.change_selections(None, cx, |s| s.select_ranges(ranges));
10742 }
10743
10744 let marked_ranges = {
10745 let snapshot = this.buffer.read(cx).read(cx);
10746 this.selections
10747 .disjoint_anchors()
10748 .iter()
10749 .map(|selection| {
10750 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
10751 })
10752 .collect::<Vec<_>>()
10753 };
10754
10755 if text.is_empty() {
10756 this.unmark_text(cx);
10757 } else {
10758 this.highlight_text::<InputComposition>(
10759 marked_ranges.clone(),
10760 HighlightStyle {
10761 underline: Some(UnderlineStyle {
10762 thickness: px(1.),
10763 color: None,
10764 wavy: false,
10765 }),
10766 ..Default::default()
10767 },
10768 cx,
10769 );
10770 }
10771
10772 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
10773 let use_autoclose = this.use_autoclose;
10774 this.set_use_autoclose(false);
10775 this.handle_input(text, cx);
10776 this.set_use_autoclose(use_autoclose);
10777
10778 if let Some(new_selected_range) = new_selected_range_utf16 {
10779 let snapshot = this.buffer.read(cx).read(cx);
10780 let new_selected_ranges = marked_ranges
10781 .into_iter()
10782 .map(|marked_range| {
10783 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
10784 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
10785 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
10786 snapshot.clip_offset_utf16(new_start, Bias::Left)
10787 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
10788 })
10789 .collect::<Vec<_>>();
10790
10791 drop(snapshot);
10792 this.change_selections(None, cx, |selections| {
10793 selections.select_ranges(new_selected_ranges)
10794 });
10795 }
10796 });
10797
10798 self.ime_transaction = self.ime_transaction.or(transaction);
10799 if let Some(transaction) = self.ime_transaction {
10800 self.buffer.update(cx, |buffer, cx| {
10801 buffer.group_until_transaction(transaction, cx);
10802 });
10803 }
10804
10805 if self.text_highlights::<InputComposition>(cx).is_none() {
10806 self.ime_transaction.take();
10807 }
10808 }
10809
10810 fn bounds_for_range(
10811 &mut self,
10812 range_utf16: Range<usize>,
10813 element_bounds: gpui::Bounds<Pixels>,
10814 cx: &mut ViewContext<Self>,
10815 ) -> Option<gpui::Bounds<Pixels>> {
10816 let text_layout_details = self.text_layout_details(cx);
10817 let style = &text_layout_details.editor_style;
10818 let font_id = cx.text_system().resolve_font(&style.text.font());
10819 let font_size = style.text.font_size.to_pixels(cx.rem_size());
10820 let line_height = style.text.line_height_in_pixels(cx.rem_size());
10821 let em_width = cx
10822 .text_system()
10823 .typographic_bounds(font_id, font_size, 'm')
10824 .unwrap()
10825 .size
10826 .width;
10827
10828 let snapshot = self.snapshot(cx);
10829 let scroll_position = snapshot.scroll_position();
10830 let scroll_left = scroll_position.x * em_width;
10831
10832 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
10833 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
10834 + self.gutter_dimensions.width;
10835 let y = line_height * (start.row() as f32 - scroll_position.y);
10836
10837 Some(Bounds {
10838 origin: element_bounds.origin + point(x, y),
10839 size: size(em_width, line_height),
10840 })
10841 }
10842}
10843
10844trait SelectionExt {
10845 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize>;
10846 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point>;
10847 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
10848 fn spanned_rows(&self, include_end_if_at_line_start: bool, map: &DisplaySnapshot)
10849 -> Range<u32>;
10850}
10851
10852impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
10853 fn point_range(&self, buffer: &MultiBufferSnapshot) -> Range<Point> {
10854 let start = self.start.to_point(buffer);
10855 let end = self.end.to_point(buffer);
10856 if self.reversed {
10857 end..start
10858 } else {
10859 start..end
10860 }
10861 }
10862
10863 fn offset_range(&self, buffer: &MultiBufferSnapshot) -> Range<usize> {
10864 let start = self.start.to_offset(buffer);
10865 let end = self.end.to_offset(buffer);
10866 if self.reversed {
10867 end..start
10868 } else {
10869 start..end
10870 }
10871 }
10872
10873 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
10874 let start = self
10875 .start
10876 .to_point(&map.buffer_snapshot)
10877 .to_display_point(map);
10878 let end = self
10879 .end
10880 .to_point(&map.buffer_snapshot)
10881 .to_display_point(map);
10882 if self.reversed {
10883 end..start
10884 } else {
10885 start..end
10886 }
10887 }
10888
10889 fn spanned_rows(
10890 &self,
10891 include_end_if_at_line_start: bool,
10892 map: &DisplaySnapshot,
10893 ) -> Range<u32> {
10894 let start = self.start.to_point(&map.buffer_snapshot);
10895 let mut end = self.end.to_point(&map.buffer_snapshot);
10896 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
10897 end.row -= 1;
10898 }
10899
10900 let buffer_start = map.prev_line_boundary(start).0;
10901 let buffer_end = map.next_line_boundary(end).0;
10902 buffer_start.row..buffer_end.row + 1
10903 }
10904}
10905
10906impl<T: InvalidationRegion> InvalidationStack<T> {
10907 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
10908 where
10909 S: Clone + ToOffset,
10910 {
10911 while let Some(region) = self.last() {
10912 let all_selections_inside_invalidation_ranges =
10913 if selections.len() == region.ranges().len() {
10914 selections
10915 .iter()
10916 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
10917 .all(|(selection, invalidation_range)| {
10918 let head = selection.head().to_offset(buffer);
10919 invalidation_range.start <= head && invalidation_range.end >= head
10920 })
10921 } else {
10922 false
10923 };
10924
10925 if all_selections_inside_invalidation_ranges {
10926 break;
10927 } else {
10928 self.pop();
10929 }
10930 }
10931 }
10932}
10933
10934impl<T> Default for InvalidationStack<T> {
10935 fn default() -> Self {
10936 Self(Default::default())
10937 }
10938}
10939
10940impl<T> Deref for InvalidationStack<T> {
10941 type Target = Vec<T>;
10942
10943 fn deref(&self) -> &Self::Target {
10944 &self.0
10945 }
10946}
10947
10948impl<T> DerefMut for InvalidationStack<T> {
10949 fn deref_mut(&mut self) -> &mut Self::Target {
10950 &mut self.0
10951 }
10952}
10953
10954impl InvalidationRegion for SnippetState {
10955 fn ranges(&self) -> &[Range<Anchor>] {
10956 &self.ranges[self.active_index]
10957 }
10958}
10959
10960pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
10961 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
10962
10963 Box::new(move |cx: &mut BlockContext| {
10964 let group_id: SharedString = cx.block_id.to_string().into();
10965
10966 let mut text_style = cx.text_style().clone();
10967 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
10968 let theme_settings = ThemeSettings::get_global(cx);
10969 text_style.font_family = theme_settings.buffer_font.family.clone();
10970 text_style.font_style = theme_settings.buffer_font.style;
10971 text_style.font_features = theme_settings.buffer_font.features.clone();
10972 text_style.font_weight = theme_settings.buffer_font.weight;
10973
10974 let multi_line_diagnostic = diagnostic.message.contains('\n');
10975
10976 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
10977 if multi_line_diagnostic {
10978 v_flex()
10979 } else {
10980 h_flex()
10981 }
10982 .children(diagnostic.is_primary.then(|| {
10983 IconButton::new(("close-block", block_id), IconName::XCircle)
10984 .icon_color(Color::Muted)
10985 .size(ButtonSize::Compact)
10986 .style(ButtonStyle::Transparent)
10987 .visible_on_hover(group_id.clone())
10988 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
10989 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
10990 }))
10991 .child(
10992 IconButton::new(("copy-block", block_id), IconName::Copy)
10993 .icon_color(Color::Muted)
10994 .size(ButtonSize::Compact)
10995 .style(ButtonStyle::Transparent)
10996 .visible_on_hover(group_id.clone())
10997 .on_click({
10998 let message = diagnostic.message.clone();
10999 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
11000 })
11001 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
11002 )
11003 };
11004
11005 let icon_size = buttons(&diagnostic, cx.block_id)
11006 .into_any_element()
11007 .layout_as_root(AvailableSpace::min_size(), cx);
11008
11009 h_flex()
11010 .id(cx.block_id)
11011 .group(group_id.clone())
11012 .relative()
11013 .size_full()
11014 .pl(cx.gutter_dimensions.width)
11015 .w(cx.max_width + cx.gutter_dimensions.width)
11016 .child(
11017 div()
11018 .flex()
11019 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
11020 .flex_shrink(),
11021 )
11022 .child(buttons(&diagnostic, cx.block_id))
11023 .child(div().flex().flex_shrink_0().child(
11024 StyledText::new(text_without_backticks.clone()).with_highlights(
11025 &text_style,
11026 code_ranges.iter().map(|range| {
11027 (
11028 range.clone(),
11029 HighlightStyle {
11030 font_weight: Some(FontWeight::BOLD),
11031 ..Default::default()
11032 },
11033 )
11034 }),
11035 ),
11036 ))
11037 .into_any_element()
11038 })
11039}
11040
11041pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
11042 let mut text_without_backticks = String::new();
11043 let mut code_ranges = Vec::new();
11044
11045 if let Some(source) = &diagnostic.source {
11046 text_without_backticks.push_str(&source);
11047 code_ranges.push(0..source.len());
11048 text_without_backticks.push_str(": ");
11049 }
11050
11051 let mut prev_offset = 0;
11052 let mut in_code_block = false;
11053 for (ix, _) in diagnostic
11054 .message
11055 .match_indices('`')
11056 .chain([(diagnostic.message.len(), "")])
11057 {
11058 let prev_len = text_without_backticks.len();
11059 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
11060 prev_offset = ix + 1;
11061 if in_code_block {
11062 code_ranges.push(prev_len..text_without_backticks.len());
11063 in_code_block = false;
11064 } else {
11065 in_code_block = true;
11066 }
11067 }
11068
11069 (text_without_backticks.into(), code_ranges)
11070}
11071
11072fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
11073 match (severity, valid) {
11074 (DiagnosticSeverity::ERROR, true) => colors.error,
11075 (DiagnosticSeverity::ERROR, false) => colors.error,
11076 (DiagnosticSeverity::WARNING, true) => colors.warning,
11077 (DiagnosticSeverity::WARNING, false) => colors.warning,
11078 (DiagnosticSeverity::INFORMATION, true) => colors.info,
11079 (DiagnosticSeverity::INFORMATION, false) => colors.info,
11080 (DiagnosticSeverity::HINT, true) => colors.info,
11081 (DiagnosticSeverity::HINT, false) => colors.info,
11082 _ => colors.ignored,
11083 }
11084}
11085
11086pub fn styled_runs_for_code_label<'a>(
11087 label: &'a CodeLabel,
11088 syntax_theme: &'a theme::SyntaxTheme,
11089) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
11090 let fade_out = HighlightStyle {
11091 fade_out: Some(0.35),
11092 ..Default::default()
11093 };
11094
11095 let mut prev_end = label.filter_range.end;
11096 label
11097 .runs
11098 .iter()
11099 .enumerate()
11100 .flat_map(move |(ix, (range, highlight_id))| {
11101 let style = if let Some(style) = highlight_id.style(syntax_theme) {
11102 style
11103 } else {
11104 return Default::default();
11105 };
11106 let mut muted_style = style;
11107 muted_style.highlight(fade_out);
11108
11109 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
11110 if range.start >= label.filter_range.end {
11111 if range.start > prev_end {
11112 runs.push((prev_end..range.start, fade_out));
11113 }
11114 runs.push((range.clone(), muted_style));
11115 } else if range.end <= label.filter_range.end {
11116 runs.push((range.clone(), style));
11117 } else {
11118 runs.push((range.start..label.filter_range.end, style));
11119 runs.push((label.filter_range.end..range.end, muted_style));
11120 }
11121 prev_end = cmp::max(prev_end, range.end);
11122
11123 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
11124 runs.push((prev_end..label.text.len(), fade_out));
11125 }
11126
11127 runs
11128 })
11129}
11130
11131pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
11132 let mut prev_index = 0;
11133 let mut prev_codepoint: Option<char> = None;
11134 text.char_indices()
11135 .chain([(text.len(), '\0')])
11136 .filter_map(move |(index, codepoint)| {
11137 let prev_codepoint = prev_codepoint.replace(codepoint)?;
11138 let is_boundary = index == text.len()
11139 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
11140 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
11141 if is_boundary {
11142 let chunk = &text[prev_index..index];
11143 prev_index = index;
11144 Some(chunk)
11145 } else {
11146 None
11147 }
11148 })
11149}
11150
11151trait RangeToAnchorExt {
11152 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
11153}
11154
11155impl<T: ToOffset> RangeToAnchorExt for Range<T> {
11156 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
11157 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
11158 }
11159}