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;
18mod debounced_delay;
19pub mod display_map;
20mod editor_settings;
21mod element;
22mod git;
23mod highlight_matching_bracket;
24mod hover_links;
25mod hover_popover;
26mod hunk_diff;
27mod indent_guides;
28mod inlay_hint_cache;
29mod inline_completion_provider;
30pub mod items;
31mod linked_editing_ranges;
32mod mouse_context_menu;
33pub mod movement;
34mod persistence;
35mod rust_analyzer_ext;
36pub mod scroll;
37mod selections_collection;
38pub mod tasks;
39
40#[cfg(test)]
41mod editor_tests;
42#[cfg(any(test, feature = "test-support"))]
43pub mod test;
44use ::git::diff::{DiffHunk, DiffHunkStatus};
45use ::git::{parse_git_remote_url, BuildPermalinkParams, GitHostingProviderRegistry};
46pub(crate) use actions::*;
47use aho_corasick::AhoCorasick;
48use anyhow::{anyhow, Context as _, Result};
49use blink_manager::BlinkManager;
50use client::{Collaborator, ParticipantIndex};
51use clock::ReplicaId;
52use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
53use convert_case::{Case, Casing};
54use debounced_delay::DebouncedDelay;
55use display_map::*;
56pub use display_map::{DisplayPoint, FoldPlaceholder};
57pub use editor_settings::{CurrentLineHighlight, EditorSettings};
58use element::LineWithInvisibles;
59pub use element::{
60 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
61};
62use futures::FutureExt;
63use fuzzy::{StringMatch, StringMatchCandidate};
64use git::blame::GitBlame;
65use git::diff_hunk_to_display;
66use gpui::{
67 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
68 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardItem,
69 Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusableView, FontId, FontStyle,
70 FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext, ListSizingBehavior, Model,
71 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, StrikethroughStyle,
72 Styled, StyledText, Subscription, Task, TextStyle, UnderlineStyle, UniformListScrollHandle,
73 View, ViewContext, ViewInputHandler, VisualContext, WeakView, WhiteSpace, WindowContext,
74};
75use highlight_matching_bracket::refresh_matching_bracket_highlights;
76use hover_popover::{hide_hover, HoverState};
77use hunk_diff::ExpandedHunks;
78pub(crate) use hunk_diff::HunkToExpand;
79use indent_guides::ActiveIndentGuidesState;
80use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
81pub use inline_completion_provider::*;
82pub use items::MAX_TAB_TITLE_LEN;
83use itertools::Itertools;
84use language::{
85 char_kind,
86 language_settings::{self, all_language_settings, InlayHintSettings},
87 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
88 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
89 Point, Selection, SelectionGoal, TransactionId,
90};
91use language::{BufferRow, Runnable, RunnableRange};
92use linked_editing_ranges::refresh_linked_ranges;
93use task::{ResolvedTask, TaskTemplate, TaskVariables};
94
95use hover_links::{HoverLink, HoveredLinkState, InlayHighlight};
96use lsp::{DiagnosticSeverity, LanguageServerId};
97use mouse_context_menu::MouseContextMenu;
98use movement::TextLayoutDetails;
99pub use multi_buffer::{
100 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
101 ToPoint,
102};
103use multi_buffer::{ExpandExcerptDirection, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16};
104use ordered_float::OrderedFloat;
105use parking_lot::{Mutex, RwLock};
106use project::project_settings::{GitGutterSetting, ProjectSettings};
107use project::{
108 CodeAction, Completion, FormatTrigger, Item, Location, Project, ProjectPath,
109 ProjectTransaction, TaskSourceKind, WorktreeId,
110};
111use rand::prelude::*;
112use rpc::{proto::*, ErrorExt};
113use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
114use selections_collection::{resolve_multiple, MutableSelectionsCollection, SelectionsCollection};
115use serde::{Deserialize, Serialize};
116use settings::{update_settings_file, Settings, SettingsStore};
117use smallvec::SmallVec;
118use snippet::Snippet;
119use std::ops::Not as _;
120use std::{
121 any::TypeId,
122 borrow::Cow,
123 cmp::{self, Ordering, Reverse},
124 mem,
125 num::NonZeroU32,
126 ops::{ControlFlow, Deref, DerefMut, Range, RangeInclusive},
127 path::Path,
128 sync::Arc,
129 time::{Duration, Instant},
130};
131pub use sum_tree::Bias;
132use sum_tree::TreeMap;
133use text::{BufferId, OffsetUtf16, Rope};
134use theme::{
135 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
136 ThemeColors, ThemeSettings,
137};
138use ui::{
139 h_flex, prelude::*, ButtonSize, ButtonStyle, IconButton, IconName, IconSize, ListItem, Popover,
140 Tooltip,
141};
142use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
143use workspace::item::{ItemHandle, PreviewTabsSettings};
144use workspace::notifications::{DetachAndPromptErr, NotificationId};
145use workspace::{
146 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
147};
148use workspace::{OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
149
150use crate::hover_links::find_url;
151
152pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
153const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
154const MAX_LINE_LEN: usize = 1024;
155const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
156const MAX_SELECTION_HISTORY_LEN: usize = 1024;
157pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
158#[doc(hidden)]
159pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
160#[doc(hidden)]
161pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
162
163pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
164
165pub fn render_parsed_markdown(
166 element_id: impl Into<ElementId>,
167 parsed: &language::ParsedMarkdown,
168 editor_style: &EditorStyle,
169 workspace: Option<WeakView<Workspace>>,
170 cx: &mut WindowContext,
171) -> InteractiveText {
172 let code_span_background_color = cx
173 .theme()
174 .colors()
175 .editor_document_highlight_read_background;
176
177 let highlights = gpui::combine_highlights(
178 parsed.highlights.iter().filter_map(|(range, highlight)| {
179 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
180 Some((range.clone(), highlight))
181 }),
182 parsed
183 .regions
184 .iter()
185 .zip(&parsed.region_ranges)
186 .filter_map(|(region, range)| {
187 if region.code {
188 Some((
189 range.clone(),
190 HighlightStyle {
191 background_color: Some(code_span_background_color),
192 ..Default::default()
193 },
194 ))
195 } else {
196 None
197 }
198 }),
199 );
200
201 let mut links = Vec::new();
202 let mut link_ranges = Vec::new();
203 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
204 if let Some(link) = region.link.clone() {
205 links.push(link);
206 link_ranges.push(range.clone());
207 }
208 }
209
210 InteractiveText::new(
211 element_id,
212 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
213 )
214 .on_click(link_ranges, move |clicked_range_ix, cx| {
215 match &links[clicked_range_ix] {
216 markdown::Link::Web { url } => cx.open_url(url),
217 markdown::Link::Path { path } => {
218 if let Some(workspace) = &workspace {
219 _ = workspace.update(cx, |workspace, cx| {
220 workspace.open_abs_path(path.clone(), false, cx).detach();
221 });
222 }
223 }
224 }
225 })
226}
227
228#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
229pub(crate) enum InlayId {
230 Suggestion(usize),
231 Hint(usize),
232}
233
234impl InlayId {
235 fn id(&self) -> usize {
236 match self {
237 Self::Suggestion(id) => *id,
238 Self::Hint(id) => *id,
239 }
240 }
241}
242
243enum DiffRowHighlight {}
244enum DocumentHighlightRead {}
245enum DocumentHighlightWrite {}
246enum InputComposition {}
247
248#[derive(Copy, Clone, PartialEq, Eq)]
249pub enum Direction {
250 Prev,
251 Next,
252}
253
254pub fn init_settings(cx: &mut AppContext) {
255 EditorSettings::register(cx);
256}
257
258pub fn init(cx: &mut AppContext) {
259 init_settings(cx);
260
261 workspace::register_project_item::<Editor>(cx);
262 workspace::register_followable_item::<Editor>(cx);
263 workspace::register_deserializable_item::<Editor>(cx);
264 cx.observe_new_views(
265 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
266 workspace.register_action(Editor::new_file);
267 workspace.register_action(Editor::new_file_in_direction);
268 },
269 )
270 .detach();
271
272 cx.on_action(move |_: &workspace::NewFile, cx| {
273 let app_state = workspace::AppState::global(cx);
274 if let Some(app_state) = app_state.upgrade() {
275 workspace::open_new(app_state, cx, |workspace, cx| {
276 Editor::new_file(workspace, &Default::default(), cx)
277 })
278 .detach();
279 }
280 });
281 cx.on_action(move |_: &workspace::NewWindow, cx| {
282 let app_state = workspace::AppState::global(cx);
283 if let Some(app_state) = app_state.upgrade() {
284 workspace::open_new(app_state, cx, |workspace, cx| {
285 Editor::new_file(workspace, &Default::default(), cx)
286 })
287 .detach();
288 }
289 });
290}
291
292pub struct SearchWithinRange;
293
294trait InvalidationRegion {
295 fn ranges(&self) -> &[Range<Anchor>];
296}
297
298#[derive(Clone, Debug, PartialEq)]
299pub enum SelectPhase {
300 Begin {
301 position: DisplayPoint,
302 add: bool,
303 click_count: usize,
304 },
305 BeginColumnar {
306 position: DisplayPoint,
307 reset: bool,
308 goal_column: u32,
309 },
310 Extend {
311 position: DisplayPoint,
312 click_count: usize,
313 },
314 Update {
315 position: DisplayPoint,
316 goal_column: u32,
317 scroll_delta: gpui::Point<f32>,
318 },
319 End,
320}
321
322#[derive(Clone, Debug)]
323pub enum SelectMode {
324 Character,
325 Word(Range<Anchor>),
326 Line(Range<Anchor>),
327 All,
328}
329
330#[derive(Copy, Clone, PartialEq, Eq, Debug)]
331pub enum EditorMode {
332 SingleLine,
333 AutoHeight { max_lines: usize },
334 Full,
335}
336
337#[derive(Clone, Debug)]
338pub enum SoftWrap {
339 None,
340 PreferLine,
341 EditorWidth,
342 Column(u32),
343}
344
345#[derive(Clone)]
346pub struct EditorStyle {
347 pub background: Hsla,
348 pub local_player: PlayerColor,
349 pub text: TextStyle,
350 pub scrollbar_width: Pixels,
351 pub syntax: Arc<SyntaxTheme>,
352 pub status: StatusColors,
353 pub inlay_hints_style: HighlightStyle,
354 pub suggestions_style: HighlightStyle,
355}
356
357impl Default for EditorStyle {
358 fn default() -> Self {
359 Self {
360 background: Hsla::default(),
361 local_player: PlayerColor::default(),
362 text: TextStyle::default(),
363 scrollbar_width: Pixels::default(),
364 syntax: Default::default(),
365 // HACK: Status colors don't have a real default.
366 // We should look into removing the status colors from the editor
367 // style and retrieve them directly from the theme.
368 status: StatusColors::dark(),
369 inlay_hints_style: HighlightStyle::default(),
370 suggestions_style: HighlightStyle::default(),
371 }
372 }
373}
374
375type CompletionId = usize;
376
377// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
378// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
379
380type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
381type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
382
383struct ScrollbarMarkerState {
384 scrollbar_size: Size<Pixels>,
385 dirty: bool,
386 markers: Arc<[PaintQuad]>,
387 pending_refresh: Option<Task<Result<()>>>,
388}
389
390impl ScrollbarMarkerState {
391 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
392 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
393 }
394}
395
396impl Default for ScrollbarMarkerState {
397 fn default() -> Self {
398 Self {
399 scrollbar_size: Size::default(),
400 dirty: false,
401 markers: Arc::from([]),
402 pending_refresh: None,
403 }
404 }
405}
406
407#[derive(Clone, Debug)]
408struct RunnableTasks {
409 templates: Vec<(TaskSourceKind, TaskTemplate)>,
410 offset: MultiBufferOffset,
411 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
412 column: u32,
413 // Values of all named captures, including those starting with '_'
414 extra_variables: HashMap<String, String>,
415 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
416 context_range: Range<BufferOffset>,
417}
418
419#[derive(Clone)]
420struct ResolvedTasks {
421 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
422 position: Anchor,
423}
424#[derive(Copy, Clone, Debug)]
425struct MultiBufferOffset(usize);
426#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
427struct BufferOffset(usize);
428/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
429///
430/// See the [module level documentation](self) for more information.
431pub struct Editor {
432 focus_handle: FocusHandle,
433 /// The text buffer being edited
434 buffer: Model<MultiBuffer>,
435 /// Map of how text in the buffer should be displayed.
436 /// Handles soft wraps, folds, fake inlay text insertions, etc.
437 pub display_map: Model<DisplayMap>,
438 pub selections: SelectionsCollection,
439 pub scroll_manager: ScrollManager,
440 columnar_selection_tail: Option<Anchor>,
441 add_selections_state: Option<AddSelectionsState>,
442 select_next_state: Option<SelectNextState>,
443 select_prev_state: Option<SelectNextState>,
444 selection_history: SelectionHistory,
445 autoclose_regions: Vec<AutocloseRegion>,
446 snippet_stack: InvalidationStack<SnippetState>,
447 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
448 ime_transaction: Option<TransactionId>,
449 active_diagnostics: Option<ActiveDiagnosticGroup>,
450 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
451 project: Option<Model<Project>>,
452 completion_provider: Option<Box<dyn CompletionProvider>>,
453 collaboration_hub: Option<Box<dyn CollaborationHub>>,
454 blink_manager: Model<BlinkManager>,
455 show_cursor_names: bool,
456 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
457 pub show_local_selections: bool,
458 mode: EditorMode,
459 show_breadcrumbs: bool,
460 show_gutter: bool,
461 show_line_numbers: Option<bool>,
462 show_git_diff_gutter: Option<bool>,
463 show_code_actions: Option<bool>,
464 show_wrap_guides: Option<bool>,
465 show_indent_guides: Option<bool>,
466 placeholder_text: Option<Arc<str>>,
467 highlight_order: usize,
468 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
469 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
470 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
471 scrollbar_marker_state: ScrollbarMarkerState,
472 active_indent_guides_state: ActiveIndentGuidesState,
473 nav_history: Option<ItemNavHistory>,
474 context_menu: RwLock<Option<ContextMenu>>,
475 mouse_context_menu: Option<MouseContextMenu>,
476 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
477 find_all_references_task_sources: Vec<Anchor>,
478 next_completion_id: CompletionId,
479 completion_documentation_pre_resolve_debounce: DebouncedDelay,
480 available_code_actions: Option<(Location, Arc<[CodeAction]>)>,
481 code_actions_task: Option<Task<()>>,
482 document_highlights_task: Option<Task<()>>,
483 linked_editing_range_task: Option<Task<Option<()>>>,
484 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
485 pending_rename: Option<RenameState>,
486 searchable: bool,
487 cursor_shape: CursorShape,
488 current_line_highlight: Option<CurrentLineHighlight>,
489 collapse_matches: bool,
490 autoindent_mode: Option<AutoindentMode>,
491 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
492 keymap_context_layers: BTreeMap<TypeId, KeyContext>,
493 input_enabled: bool,
494 use_modal_editing: bool,
495 read_only: bool,
496 leader_peer_id: Option<PeerId>,
497 remote_id: Option<ViewId>,
498 hover_state: HoverState,
499 gutter_hovered: bool,
500 hovered_link_state: Option<HoveredLinkState>,
501 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
502 active_inline_completion: Option<Inlay>,
503 show_inline_completions: bool,
504 inlay_hint_cache: InlayHintCache,
505 expanded_hunks: ExpandedHunks,
506 next_inlay_id: usize,
507 _subscriptions: Vec<Subscription>,
508 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
509 gutter_dimensions: GutterDimensions,
510 pub vim_replace_map: HashMap<Range<usize>, String>,
511 style: Option<EditorStyle>,
512 editor_actions: Vec<Box<dyn Fn(&mut ViewContext<Self>)>>,
513 use_autoclose: bool,
514 auto_replace_emoji_shortcode: bool,
515 show_git_blame_gutter: bool,
516 show_git_blame_inline: bool,
517 show_git_blame_inline_delay_task: Option<Task<()>>,
518 git_blame_inline_enabled: bool,
519 blame: Option<Model<GitBlame>>,
520 blame_subscription: Option<Subscription>,
521 custom_context_menu: Option<
522 Box<
523 dyn 'static
524 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
525 >,
526 >,
527 last_bounds: Option<Bounds<Pixels>>,
528 expect_bounds_change: Option<Bounds<Pixels>>,
529 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
530 tasks_update_task: Option<Task<()>>,
531 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
532}
533
534#[derive(Clone)]
535pub struct EditorSnapshot {
536 pub mode: EditorMode,
537 show_gutter: bool,
538 show_line_numbers: Option<bool>,
539 show_git_diff_gutter: Option<bool>,
540 show_code_actions: Option<bool>,
541 render_git_blame_gutter: bool,
542 pub display_snapshot: DisplaySnapshot,
543 pub placeholder_text: Option<Arc<str>>,
544 is_focused: bool,
545 scroll_anchor: ScrollAnchor,
546 ongoing_scroll: OngoingScroll,
547 current_line_highlight: CurrentLineHighlight,
548 gutter_hovered: bool,
549}
550
551const GIT_BLAME_GUTTER_WIDTH_CHARS: f32 = 53.;
552
553#[derive(Debug, Clone, Copy)]
554pub struct GutterDimensions {
555 pub left_padding: Pixels,
556 pub right_padding: Pixels,
557 pub width: Pixels,
558 pub margin: Pixels,
559 pub git_blame_entries_width: Option<Pixels>,
560}
561
562impl GutterDimensions {
563 /// The full width of the space taken up by the gutter.
564 pub fn full_width(&self) -> Pixels {
565 self.margin + self.width
566 }
567
568 /// The width of the space reserved for the fold indicators,
569 /// use alongside 'justify_end' and `gutter_width` to
570 /// right align content with the line numbers
571 pub fn fold_area_width(&self) -> Pixels {
572 self.margin + self.right_padding
573 }
574}
575
576impl Default for GutterDimensions {
577 fn default() -> Self {
578 Self {
579 left_padding: Pixels::ZERO,
580 right_padding: Pixels::ZERO,
581 width: Pixels::ZERO,
582 margin: Pixels::ZERO,
583 git_blame_entries_width: None,
584 }
585 }
586}
587
588#[derive(Debug)]
589pub struct RemoteSelection {
590 pub replica_id: ReplicaId,
591 pub selection: Selection<Anchor>,
592 pub cursor_shape: CursorShape,
593 pub peer_id: PeerId,
594 pub line_mode: bool,
595 pub participant_index: Option<ParticipantIndex>,
596 pub user_name: Option<SharedString>,
597}
598
599#[derive(Clone, Debug)]
600struct SelectionHistoryEntry {
601 selections: Arc<[Selection<Anchor>]>,
602 select_next_state: Option<SelectNextState>,
603 select_prev_state: Option<SelectNextState>,
604 add_selections_state: Option<AddSelectionsState>,
605}
606
607enum SelectionHistoryMode {
608 Normal,
609 Undoing,
610 Redoing,
611}
612
613#[derive(Clone, PartialEq, Eq, Hash)]
614struct HoveredCursor {
615 replica_id: u16,
616 selection_id: usize,
617}
618
619impl Default for SelectionHistoryMode {
620 fn default() -> Self {
621 Self::Normal
622 }
623}
624
625#[derive(Default)]
626struct SelectionHistory {
627 #[allow(clippy::type_complexity)]
628 selections_by_transaction:
629 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
630 mode: SelectionHistoryMode,
631 undo_stack: VecDeque<SelectionHistoryEntry>,
632 redo_stack: VecDeque<SelectionHistoryEntry>,
633}
634
635impl SelectionHistory {
636 fn insert_transaction(
637 &mut self,
638 transaction_id: TransactionId,
639 selections: Arc<[Selection<Anchor>]>,
640 ) {
641 self.selections_by_transaction
642 .insert(transaction_id, (selections, None));
643 }
644
645 #[allow(clippy::type_complexity)]
646 fn transaction(
647 &self,
648 transaction_id: TransactionId,
649 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
650 self.selections_by_transaction.get(&transaction_id)
651 }
652
653 #[allow(clippy::type_complexity)]
654 fn transaction_mut(
655 &mut self,
656 transaction_id: TransactionId,
657 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
658 self.selections_by_transaction.get_mut(&transaction_id)
659 }
660
661 fn push(&mut self, entry: SelectionHistoryEntry) {
662 if !entry.selections.is_empty() {
663 match self.mode {
664 SelectionHistoryMode::Normal => {
665 self.push_undo(entry);
666 self.redo_stack.clear();
667 }
668 SelectionHistoryMode::Undoing => self.push_redo(entry),
669 SelectionHistoryMode::Redoing => self.push_undo(entry),
670 }
671 }
672 }
673
674 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
675 if self
676 .undo_stack
677 .back()
678 .map_or(true, |e| e.selections != entry.selections)
679 {
680 self.undo_stack.push_back(entry);
681 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
682 self.undo_stack.pop_front();
683 }
684 }
685 }
686
687 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
688 if self
689 .redo_stack
690 .back()
691 .map_or(true, |e| e.selections != entry.selections)
692 {
693 self.redo_stack.push_back(entry);
694 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
695 self.redo_stack.pop_front();
696 }
697 }
698 }
699}
700
701struct RowHighlight {
702 index: usize,
703 range: RangeInclusive<Anchor>,
704 color: Option<Hsla>,
705 should_autoscroll: bool,
706}
707
708#[derive(Clone, Debug)]
709struct AddSelectionsState {
710 above: bool,
711 stack: Vec<usize>,
712}
713
714#[derive(Clone)]
715struct SelectNextState {
716 query: AhoCorasick,
717 wordwise: bool,
718 done: bool,
719}
720
721impl std::fmt::Debug for SelectNextState {
722 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
723 f.debug_struct(std::any::type_name::<Self>())
724 .field("wordwise", &self.wordwise)
725 .field("done", &self.done)
726 .finish()
727 }
728}
729
730#[derive(Debug)]
731struct AutocloseRegion {
732 selection_id: usize,
733 range: Range<Anchor>,
734 pair: BracketPair,
735}
736
737#[derive(Debug)]
738struct SnippetState {
739 ranges: Vec<Vec<Range<Anchor>>>,
740 active_index: usize,
741}
742
743#[doc(hidden)]
744pub struct RenameState {
745 pub range: Range<Anchor>,
746 pub old_name: Arc<str>,
747 pub editor: View<Editor>,
748 block_id: BlockId,
749}
750
751struct InvalidationStack<T>(Vec<T>);
752
753struct RegisteredInlineCompletionProvider {
754 provider: Arc<dyn InlineCompletionProviderHandle>,
755 _subscription: Subscription,
756}
757
758enum ContextMenu {
759 Completions(CompletionsMenu),
760 CodeActions(CodeActionsMenu),
761}
762
763impl ContextMenu {
764 fn select_first(
765 &mut self,
766 project: Option<&Model<Project>>,
767 cx: &mut ViewContext<Editor>,
768 ) -> bool {
769 if self.visible() {
770 match self {
771 ContextMenu::Completions(menu) => menu.select_first(project, cx),
772 ContextMenu::CodeActions(menu) => menu.select_first(cx),
773 }
774 true
775 } else {
776 false
777 }
778 }
779
780 fn select_prev(
781 &mut self,
782 project: Option<&Model<Project>>,
783 cx: &mut ViewContext<Editor>,
784 ) -> bool {
785 if self.visible() {
786 match self {
787 ContextMenu::Completions(menu) => menu.select_prev(project, cx),
788 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
789 }
790 true
791 } else {
792 false
793 }
794 }
795
796 fn select_next(
797 &mut self,
798 project: Option<&Model<Project>>,
799 cx: &mut ViewContext<Editor>,
800 ) -> bool {
801 if self.visible() {
802 match self {
803 ContextMenu::Completions(menu) => menu.select_next(project, cx),
804 ContextMenu::CodeActions(menu) => menu.select_next(cx),
805 }
806 true
807 } else {
808 false
809 }
810 }
811
812 fn select_last(
813 &mut self,
814 project: Option<&Model<Project>>,
815 cx: &mut ViewContext<Editor>,
816 ) -> bool {
817 if self.visible() {
818 match self {
819 ContextMenu::Completions(menu) => menu.select_last(project, cx),
820 ContextMenu::CodeActions(menu) => menu.select_last(cx),
821 }
822 true
823 } else {
824 false
825 }
826 }
827
828 fn visible(&self) -> bool {
829 match self {
830 ContextMenu::Completions(menu) => menu.visible(),
831 ContextMenu::CodeActions(menu) => menu.visible(),
832 }
833 }
834
835 fn render(
836 &self,
837 cursor_position: DisplayPoint,
838 style: &EditorStyle,
839 max_height: Pixels,
840 workspace: Option<WeakView<Workspace>>,
841 cx: &mut ViewContext<Editor>,
842 ) -> (ContextMenuOrigin, AnyElement) {
843 match self {
844 ContextMenu::Completions(menu) => (
845 ContextMenuOrigin::EditorPoint(cursor_position),
846 menu.render(style, max_height, workspace, cx),
847 ),
848 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
849 }
850 }
851}
852
853enum ContextMenuOrigin {
854 EditorPoint(DisplayPoint),
855 GutterIndicator(DisplayRow),
856}
857
858#[derive(Clone)]
859struct CompletionsMenu {
860 id: CompletionId,
861 initial_position: Anchor,
862 buffer: Model<Buffer>,
863 completions: Arc<RwLock<Box<[Completion]>>>,
864 match_candidates: Arc<[StringMatchCandidate]>,
865 matches: Arc<[StringMatch]>,
866 selected_item: usize,
867 scroll_handle: UniformListScrollHandle,
868 selected_completion_documentation_resolve_debounce: Arc<Mutex<DebouncedDelay>>,
869}
870
871impl CompletionsMenu {
872 fn select_first(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
873 self.selected_item = 0;
874 self.scroll_handle.scroll_to_item(self.selected_item);
875 self.attempt_resolve_selected_completion_documentation(project, cx);
876 cx.notify();
877 }
878
879 fn select_prev(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
880 if self.selected_item > 0 {
881 self.selected_item -= 1;
882 } else {
883 self.selected_item = self.matches.len() - 1;
884 }
885 self.scroll_handle.scroll_to_item(self.selected_item);
886 self.attempt_resolve_selected_completion_documentation(project, cx);
887 cx.notify();
888 }
889
890 fn select_next(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
891 if self.selected_item + 1 < self.matches.len() {
892 self.selected_item += 1;
893 } else {
894 self.selected_item = 0;
895 }
896 self.scroll_handle.scroll_to_item(self.selected_item);
897 self.attempt_resolve_selected_completion_documentation(project, cx);
898 cx.notify();
899 }
900
901 fn select_last(&mut self, project: Option<&Model<Project>>, cx: &mut ViewContext<Editor>) {
902 self.selected_item = self.matches.len() - 1;
903 self.scroll_handle.scroll_to_item(self.selected_item);
904 self.attempt_resolve_selected_completion_documentation(project, cx);
905 cx.notify();
906 }
907
908 fn pre_resolve_completion_documentation(
909 buffer: Model<Buffer>,
910 completions: Arc<RwLock<Box<[Completion]>>>,
911 matches: Arc<[StringMatch]>,
912 editor: &Editor,
913 cx: &mut ViewContext<Editor>,
914 ) -> Task<()> {
915 let settings = EditorSettings::get_global(cx);
916 if !settings.show_completion_documentation {
917 return Task::ready(());
918 }
919
920 let Some(provider) = editor.completion_provider.as_ref() else {
921 return Task::ready(());
922 };
923
924 let resolve_task = provider.resolve_completions(
925 buffer,
926 matches.iter().map(|m| m.candidate_id).collect(),
927 completions.clone(),
928 cx,
929 );
930
931 return cx.spawn(move |this, mut cx| async move {
932 if let Some(true) = resolve_task.await.log_err() {
933 this.update(&mut cx, |_, cx| cx.notify()).ok();
934 }
935 });
936 }
937
938 fn attempt_resolve_selected_completion_documentation(
939 &mut self,
940 project: Option<&Model<Project>>,
941 cx: &mut ViewContext<Editor>,
942 ) {
943 let settings = EditorSettings::get_global(cx);
944 if !settings.show_completion_documentation {
945 return;
946 }
947
948 let completion_index = self.matches[self.selected_item].candidate_id;
949 let Some(project) = project else {
950 return;
951 };
952
953 let resolve_task = project.update(cx, |project, cx| {
954 project.resolve_completions(
955 self.buffer.clone(),
956 vec![completion_index],
957 self.completions.clone(),
958 cx,
959 )
960 });
961
962 let delay_ms =
963 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
964 let delay = Duration::from_millis(delay_ms);
965
966 self.selected_completion_documentation_resolve_debounce
967 .lock()
968 .fire_new(delay, cx, |_, cx| {
969 cx.spawn(move |this, mut cx| async move {
970 if let Some(true) = resolve_task.await.log_err() {
971 this.update(&mut cx, |_, cx| cx.notify()).ok();
972 }
973 })
974 });
975 }
976
977 fn visible(&self) -> bool {
978 !self.matches.is_empty()
979 }
980
981 fn render(
982 &self,
983 style: &EditorStyle,
984 max_height: Pixels,
985 workspace: Option<WeakView<Workspace>>,
986 cx: &mut ViewContext<Editor>,
987 ) -> AnyElement {
988 let settings = EditorSettings::get_global(cx);
989 let show_completion_documentation = settings.show_completion_documentation;
990
991 let widest_completion_ix = self
992 .matches
993 .iter()
994 .enumerate()
995 .max_by_key(|(_, mat)| {
996 let completions = self.completions.read();
997 let completion = &completions[mat.candidate_id];
998 let documentation = &completion.documentation;
999
1000 let mut len = completion.label.text.chars().count();
1001 if let Some(Documentation::SingleLine(text)) = documentation {
1002 if show_completion_documentation {
1003 len += text.chars().count();
1004 }
1005 }
1006
1007 len
1008 })
1009 .map(|(ix, _)| ix);
1010
1011 let completions = self.completions.clone();
1012 let matches = self.matches.clone();
1013 let selected_item = self.selected_item;
1014 let style = style.clone();
1015
1016 let multiline_docs = if show_completion_documentation {
1017 let mat = &self.matches[selected_item];
1018 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1019 Some(Documentation::MultiLinePlainText(text)) => {
1020 Some(div().child(SharedString::from(text.clone())))
1021 }
1022 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1023 Some(div().child(render_parsed_markdown(
1024 "completions_markdown",
1025 parsed,
1026 &style,
1027 workspace,
1028 cx,
1029 )))
1030 }
1031 _ => None,
1032 };
1033 multiline_docs.map(|div| {
1034 div.id("multiline_docs")
1035 .max_h(max_height)
1036 .flex_1()
1037 .px_1p5()
1038 .py_1()
1039 .min_w(px(260.))
1040 .max_w(px(640.))
1041 .w(px(500.))
1042 .overflow_y_scroll()
1043 .occlude()
1044 })
1045 } else {
1046 None
1047 };
1048
1049 let list = uniform_list(
1050 cx.view().clone(),
1051 "completions",
1052 matches.len(),
1053 move |_editor, range, cx| {
1054 let start_ix = range.start;
1055 let completions_guard = completions.read();
1056
1057 matches[range]
1058 .iter()
1059 .enumerate()
1060 .map(|(ix, mat)| {
1061 let item_ix = start_ix + ix;
1062 let candidate_id = mat.candidate_id;
1063 let completion = &completions_guard[candidate_id];
1064
1065 let documentation = if show_completion_documentation {
1066 &completion.documentation
1067 } else {
1068 &None
1069 };
1070
1071 let highlights = gpui::combine_highlights(
1072 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1073 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1074 |(range, mut highlight)| {
1075 // Ignore font weight for syntax highlighting, as we'll use it
1076 // for fuzzy matches.
1077 highlight.font_weight = None;
1078
1079 if completion.lsp_completion.deprecated.unwrap_or(false) {
1080 highlight.strikethrough = Some(StrikethroughStyle {
1081 thickness: 1.0.into(),
1082 ..Default::default()
1083 });
1084 highlight.color = Some(cx.theme().colors().text_muted);
1085 }
1086
1087 (range, highlight)
1088 },
1089 ),
1090 );
1091 let completion_label = StyledText::new(completion.label.text.clone())
1092 .with_highlights(&style.text, highlights);
1093 let documentation_label =
1094 if let Some(Documentation::SingleLine(text)) = documentation {
1095 if text.trim().is_empty() {
1096 None
1097 } else {
1098 Some(
1099 h_flex().ml_4().child(
1100 Label::new(text.clone())
1101 .size(LabelSize::Small)
1102 .color(Color::Muted),
1103 ),
1104 )
1105 }
1106 } else {
1107 None
1108 };
1109
1110 div().min_w(px(220.)).max_w(px(540.)).child(
1111 ListItem::new(mat.candidate_id)
1112 .inset(true)
1113 .selected(item_ix == selected_item)
1114 .on_click(cx.listener(move |editor, _event, cx| {
1115 cx.stop_propagation();
1116 if let Some(task) = editor.confirm_completion(
1117 &ConfirmCompletion {
1118 item_ix: Some(item_ix),
1119 },
1120 cx,
1121 ) {
1122 task.detach_and_log_err(cx)
1123 }
1124 }))
1125 .child(h_flex().overflow_hidden().child(completion_label))
1126 .end_slot::<Div>(documentation_label),
1127 )
1128 })
1129 .collect()
1130 },
1131 )
1132 .occlude()
1133 .max_h(max_height)
1134 .track_scroll(self.scroll_handle.clone())
1135 .with_width_from_item(widest_completion_ix)
1136 .with_sizing_behavior(ListSizingBehavior::Infer);
1137
1138 Popover::new()
1139 .child(list)
1140 .when_some(multiline_docs, |popover, multiline_docs| {
1141 popover.aside(multiline_docs)
1142 })
1143 .into_any_element()
1144 }
1145
1146 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1147 let mut matches = if let Some(query) = query {
1148 fuzzy::match_strings(
1149 &self.match_candidates,
1150 query,
1151 query.chars().any(|c| c.is_uppercase()),
1152 100,
1153 &Default::default(),
1154 executor,
1155 )
1156 .await
1157 } else {
1158 self.match_candidates
1159 .iter()
1160 .enumerate()
1161 .map(|(candidate_id, candidate)| StringMatch {
1162 candidate_id,
1163 score: Default::default(),
1164 positions: Default::default(),
1165 string: candidate.string.clone(),
1166 })
1167 .collect()
1168 };
1169
1170 // Remove all candidates where the query's start does not match the start of any word in the candidate
1171 if let Some(query) = query {
1172 if let Some(query_start) = query.chars().next() {
1173 matches.retain(|string_match| {
1174 split_words(&string_match.string).any(|word| {
1175 // Check that the first codepoint of the word as lowercase matches the first
1176 // codepoint of the query as lowercase
1177 word.chars()
1178 .flat_map(|codepoint| codepoint.to_lowercase())
1179 .zip(query_start.to_lowercase())
1180 .all(|(word_cp, query_cp)| word_cp == query_cp)
1181 })
1182 });
1183 }
1184 }
1185
1186 let completions = self.completions.read();
1187 matches.sort_unstable_by_key(|mat| {
1188 // We do want to strike a balance here between what the language server tells us
1189 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1190 // `Creat` and there is a local variable called `CreateComponent`).
1191 // So what we do is: we bucket all matches into two buckets
1192 // - Strong matches
1193 // - Weak matches
1194 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1195 // and the Weak matches are the rest.
1196 //
1197 // For the strong matches, we sort by the language-servers score first and for the weak
1198 // matches, we prefer our fuzzy finder first.
1199 //
1200 // The thinking behind that: it's useless to take the sort_text the language-server gives
1201 // us into account when it's obviously a bad match.
1202
1203 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1204 enum MatchScore<'a> {
1205 Strong {
1206 sort_text: Option<&'a str>,
1207 score: Reverse<OrderedFloat<f64>>,
1208 sort_key: (usize, &'a str),
1209 },
1210 Weak {
1211 score: Reverse<OrderedFloat<f64>>,
1212 sort_text: Option<&'a str>,
1213 sort_key: (usize, &'a str),
1214 },
1215 }
1216
1217 let completion = &completions[mat.candidate_id];
1218 let sort_key = completion.sort_key();
1219 let sort_text = completion.lsp_completion.sort_text.as_deref();
1220 let score = Reverse(OrderedFloat(mat.score));
1221
1222 if mat.score >= 0.2 {
1223 MatchScore::Strong {
1224 sort_text,
1225 score,
1226 sort_key,
1227 }
1228 } else {
1229 MatchScore::Weak {
1230 score,
1231 sort_text,
1232 sort_key,
1233 }
1234 }
1235 });
1236
1237 for mat in &mut matches {
1238 let completion = &completions[mat.candidate_id];
1239 mat.string.clone_from(&completion.label.text);
1240 for position in &mut mat.positions {
1241 *position += completion.label.filter_range.start;
1242 }
1243 }
1244 drop(completions);
1245
1246 self.matches = matches.into();
1247 self.selected_item = 0;
1248 }
1249}
1250
1251#[derive(Clone)]
1252struct CodeActionContents {
1253 tasks: Option<Arc<ResolvedTasks>>,
1254 actions: Option<Arc<[CodeAction]>>,
1255}
1256
1257impl CodeActionContents {
1258 fn len(&self) -> usize {
1259 match (&self.tasks, &self.actions) {
1260 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1261 (Some(tasks), None) => tasks.templates.len(),
1262 (None, Some(actions)) => actions.len(),
1263 (None, None) => 0,
1264 }
1265 }
1266
1267 fn is_empty(&self) -> bool {
1268 match (&self.tasks, &self.actions) {
1269 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1270 (Some(tasks), None) => tasks.templates.is_empty(),
1271 (None, Some(actions)) => actions.is_empty(),
1272 (None, None) => true,
1273 }
1274 }
1275
1276 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1277 self.tasks
1278 .iter()
1279 .flat_map(|tasks| {
1280 tasks
1281 .templates
1282 .iter()
1283 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1284 })
1285 .chain(self.actions.iter().flat_map(|actions| {
1286 actions
1287 .iter()
1288 .map(|action| CodeActionsItem::CodeAction(action.clone()))
1289 }))
1290 }
1291 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1292 match (&self.tasks, &self.actions) {
1293 (Some(tasks), Some(actions)) => {
1294 if index < tasks.templates.len() {
1295 tasks
1296 .templates
1297 .get(index)
1298 .cloned()
1299 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1300 } else {
1301 actions
1302 .get(index - tasks.templates.len())
1303 .cloned()
1304 .map(CodeActionsItem::CodeAction)
1305 }
1306 }
1307 (Some(tasks), None) => tasks
1308 .templates
1309 .get(index)
1310 .cloned()
1311 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1312 (None, Some(actions)) => actions.get(index).cloned().map(CodeActionsItem::CodeAction),
1313 (None, None) => None,
1314 }
1315 }
1316}
1317
1318#[allow(clippy::large_enum_variant)]
1319#[derive(Clone)]
1320enum CodeActionsItem {
1321 Task(TaskSourceKind, ResolvedTask),
1322 CodeAction(CodeAction),
1323}
1324
1325impl CodeActionsItem {
1326 fn as_task(&self) -> Option<&ResolvedTask> {
1327 let Self::Task(_, task) = self else {
1328 return None;
1329 };
1330 Some(task)
1331 }
1332 fn as_code_action(&self) -> Option<&CodeAction> {
1333 let Self::CodeAction(action) = self else {
1334 return None;
1335 };
1336 Some(action)
1337 }
1338 fn label(&self) -> String {
1339 match self {
1340 Self::CodeAction(action) => action.lsp_action.title.clone(),
1341 Self::Task(_, task) => task.resolved_label.clone(),
1342 }
1343 }
1344}
1345
1346struct CodeActionsMenu {
1347 actions: CodeActionContents,
1348 buffer: Model<Buffer>,
1349 selected_item: usize,
1350 scroll_handle: UniformListScrollHandle,
1351 deployed_from_indicator: Option<DisplayRow>,
1352}
1353
1354impl CodeActionsMenu {
1355 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1356 self.selected_item = 0;
1357 self.scroll_handle.scroll_to_item(self.selected_item);
1358 cx.notify()
1359 }
1360
1361 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1362 if self.selected_item > 0 {
1363 self.selected_item -= 1;
1364 } else {
1365 self.selected_item = self.actions.len() - 1;
1366 }
1367 self.scroll_handle.scroll_to_item(self.selected_item);
1368 cx.notify();
1369 }
1370
1371 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1372 if self.selected_item + 1 < self.actions.len() {
1373 self.selected_item += 1;
1374 } else {
1375 self.selected_item = 0;
1376 }
1377 self.scroll_handle.scroll_to_item(self.selected_item);
1378 cx.notify();
1379 }
1380
1381 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1382 self.selected_item = self.actions.len() - 1;
1383 self.scroll_handle.scroll_to_item(self.selected_item);
1384 cx.notify()
1385 }
1386
1387 fn visible(&self) -> bool {
1388 !self.actions.is_empty()
1389 }
1390
1391 fn render(
1392 &self,
1393 cursor_position: DisplayPoint,
1394 _style: &EditorStyle,
1395 max_height: Pixels,
1396 cx: &mut ViewContext<Editor>,
1397 ) -> (ContextMenuOrigin, AnyElement) {
1398 let actions = self.actions.clone();
1399 let selected_item = self.selected_item;
1400 let element = uniform_list(
1401 cx.view().clone(),
1402 "code_actions_menu",
1403 self.actions.len(),
1404 move |_this, range, cx| {
1405 actions
1406 .iter()
1407 .skip(range.start)
1408 .take(range.end - range.start)
1409 .enumerate()
1410 .map(|(ix, action)| {
1411 let item_ix = range.start + ix;
1412 let selected = selected_item == item_ix;
1413 let colors = cx.theme().colors();
1414 div()
1415 .px_2()
1416 .text_color(colors.text)
1417 .when(selected, |style| {
1418 style
1419 .bg(colors.element_active)
1420 .text_color(colors.text_accent)
1421 })
1422 .hover(|style| {
1423 style
1424 .bg(colors.element_hover)
1425 .text_color(colors.text_accent)
1426 })
1427 .whitespace_nowrap()
1428 .when_some(action.as_code_action(), |this, action| {
1429 this.on_mouse_down(
1430 MouseButton::Left,
1431 cx.listener(move |editor, _, cx| {
1432 cx.stop_propagation();
1433 if let Some(task) = editor.confirm_code_action(
1434 &ConfirmCodeAction {
1435 item_ix: Some(item_ix),
1436 },
1437 cx,
1438 ) {
1439 task.detach_and_log_err(cx)
1440 }
1441 }),
1442 )
1443 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1444 .child(SharedString::from(action.lsp_action.title.clone()))
1445 })
1446 .when_some(action.as_task(), |this, task| {
1447 this.on_mouse_down(
1448 MouseButton::Left,
1449 cx.listener(move |editor, _, cx| {
1450 cx.stop_propagation();
1451 if let Some(task) = editor.confirm_code_action(
1452 &ConfirmCodeAction {
1453 item_ix: Some(item_ix),
1454 },
1455 cx,
1456 ) {
1457 task.detach_and_log_err(cx)
1458 }
1459 }),
1460 )
1461 .child(SharedString::from(task.resolved_label.clone()))
1462 })
1463 })
1464 .collect()
1465 },
1466 )
1467 .elevation_1(cx)
1468 .px_2()
1469 .py_1()
1470 .max_h(max_height)
1471 .occlude()
1472 .track_scroll(self.scroll_handle.clone())
1473 .with_width_from_item(
1474 self.actions
1475 .iter()
1476 .enumerate()
1477 .max_by_key(|(_, action)| match action {
1478 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1479 CodeActionsItem::CodeAction(action) => action.lsp_action.title.chars().count(),
1480 })
1481 .map(|(ix, _)| ix),
1482 )
1483 .with_sizing_behavior(ListSizingBehavior::Infer)
1484 .into_any_element();
1485
1486 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1487 ContextMenuOrigin::GutterIndicator(row)
1488 } else {
1489 ContextMenuOrigin::EditorPoint(cursor_position)
1490 };
1491
1492 (cursor_position, element)
1493 }
1494}
1495
1496#[derive(Debug)]
1497struct ActiveDiagnosticGroup {
1498 primary_range: Range<Anchor>,
1499 primary_message: String,
1500 group_id: usize,
1501 blocks: HashMap<BlockId, Diagnostic>,
1502 is_valid: bool,
1503}
1504
1505#[derive(Serialize, Deserialize)]
1506pub struct ClipboardSelection {
1507 pub len: usize,
1508 pub is_entire_line: bool,
1509 pub first_line_indent: u32,
1510}
1511
1512#[derive(Debug)]
1513pub(crate) struct NavigationData {
1514 cursor_anchor: Anchor,
1515 cursor_position: Point,
1516 scroll_anchor: ScrollAnchor,
1517 scroll_top_row: u32,
1518}
1519
1520enum GotoDefinitionKind {
1521 Symbol,
1522 Type,
1523 Implementation,
1524}
1525
1526#[derive(Debug, Clone)]
1527enum InlayHintRefreshReason {
1528 Toggle(bool),
1529 SettingsChange(InlayHintSettings),
1530 NewLinesShown,
1531 BufferEdited(HashSet<Arc<Language>>),
1532 RefreshRequested,
1533 ExcerptsRemoved(Vec<ExcerptId>),
1534}
1535
1536impl InlayHintRefreshReason {
1537 fn description(&self) -> &'static str {
1538 match self {
1539 Self::Toggle(_) => "toggle",
1540 Self::SettingsChange(_) => "settings change",
1541 Self::NewLinesShown => "new lines shown",
1542 Self::BufferEdited(_) => "buffer edited",
1543 Self::RefreshRequested => "refresh requested",
1544 Self::ExcerptsRemoved(_) => "excerpts removed",
1545 }
1546 }
1547}
1548
1549impl Editor {
1550 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1551 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1552 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1553 Self::new(EditorMode::SingleLine, buffer, None, false, cx)
1554 }
1555
1556 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1557 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1558 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1559 Self::new(EditorMode::Full, buffer, None, false, cx)
1560 }
1561
1562 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1563 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1564 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1565 Self::new(
1566 EditorMode::AutoHeight { max_lines },
1567 buffer,
1568 None,
1569 false,
1570 cx,
1571 )
1572 }
1573
1574 pub fn for_buffer(
1575 buffer: Model<Buffer>,
1576 project: Option<Model<Project>>,
1577 cx: &mut ViewContext<Self>,
1578 ) -> Self {
1579 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1580 Self::new(EditorMode::Full, buffer, project, false, cx)
1581 }
1582
1583 pub fn for_multibuffer(
1584 buffer: Model<MultiBuffer>,
1585 project: Option<Model<Project>>,
1586 show_excerpt_controls: bool,
1587 cx: &mut ViewContext<Self>,
1588 ) -> Self {
1589 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1590 }
1591
1592 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1593 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1594 let mut clone = Self::new(
1595 self.mode,
1596 self.buffer.clone(),
1597 self.project.clone(),
1598 show_excerpt_controls,
1599 cx,
1600 );
1601 self.display_map.update(cx, |display_map, cx| {
1602 let snapshot = display_map.snapshot(cx);
1603 clone.display_map.update(cx, |display_map, cx| {
1604 display_map.set_state(&snapshot, cx);
1605 });
1606 });
1607 clone.selections.clone_state(&self.selections);
1608 clone.scroll_manager.clone_state(&self.scroll_manager);
1609 clone.searchable = self.searchable;
1610 clone
1611 }
1612
1613 fn new(
1614 mode: EditorMode,
1615 buffer: Model<MultiBuffer>,
1616 project: Option<Model<Project>>,
1617 show_excerpt_controls: bool,
1618 cx: &mut ViewContext<Self>,
1619 ) -> Self {
1620 let style = cx.text_style();
1621 let font_size = style.font_size.to_pixels(cx.rem_size());
1622 let editor = cx.view().downgrade();
1623 let fold_placeholder = FoldPlaceholder {
1624 constrain_width: true,
1625 render: Arc::new(move |fold_id, fold_range, cx| {
1626 let editor = editor.clone();
1627 div()
1628 .id(fold_id)
1629 .bg(cx.theme().colors().ghost_element_background)
1630 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1631 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1632 .rounded_sm()
1633 .size_full()
1634 .cursor_pointer()
1635 .child("⋯")
1636 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1637 .on_click(move |_, cx| {
1638 editor
1639 .update(cx, |editor, cx| {
1640 editor.unfold_ranges(
1641 [fold_range.start..fold_range.end],
1642 true,
1643 false,
1644 cx,
1645 );
1646 cx.stop_propagation();
1647 })
1648 .ok();
1649 })
1650 .into_any()
1651 }),
1652 merge_adjacent: true,
1653 };
1654 let display_map = cx.new_model(|cx| {
1655 let file_header_size = if show_excerpt_controls { 3 } else { 2 };
1656
1657 DisplayMap::new(
1658 buffer.clone(),
1659 style.font(),
1660 font_size,
1661 None,
1662 show_excerpt_controls,
1663 file_header_size,
1664 1,
1665 1,
1666 fold_placeholder,
1667 cx,
1668 )
1669 });
1670
1671 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1672
1673 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1674
1675 let soft_wrap_mode_override =
1676 (mode == EditorMode::SingleLine).then(|| language_settings::SoftWrap::PreferLine);
1677
1678 let mut project_subscriptions = Vec::new();
1679 if mode == EditorMode::Full {
1680 if let Some(project) = project.as_ref() {
1681 if buffer.read(cx).is_singleton() {
1682 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1683 cx.emit(EditorEvent::TitleChanged);
1684 }));
1685 }
1686 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1687 if let project::Event::RefreshInlayHints = event {
1688 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1689 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1690 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1691 let focus_handle = editor.focus_handle(cx);
1692 if focus_handle.is_focused(cx) {
1693 let snapshot = buffer.read(cx).snapshot();
1694 for (range, snippet) in snippet_edits {
1695 let editor_range =
1696 language::range_from_lsp(*range).to_offset(&snapshot);
1697 editor
1698 .insert_snippet(&[editor_range], snippet.clone(), cx)
1699 .ok();
1700 }
1701 }
1702 }
1703 }
1704 }));
1705 let task_inventory = project.read(cx).task_inventory().clone();
1706 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1707 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1708 }));
1709 }
1710 }
1711
1712 let inlay_hint_settings = inlay_hint_settings(
1713 selections.newest_anchor().head(),
1714 &buffer.read(cx).snapshot(cx),
1715 cx,
1716 );
1717 let focus_handle = cx.focus_handle();
1718 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1719 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1720
1721 let show_indent_guides = if mode == EditorMode::SingleLine {
1722 Some(false)
1723 } else {
1724 None
1725 };
1726
1727 let mut this = Self {
1728 focus_handle,
1729 buffer: buffer.clone(),
1730 display_map: display_map.clone(),
1731 selections,
1732 scroll_manager: ScrollManager::new(cx),
1733 columnar_selection_tail: None,
1734 add_selections_state: None,
1735 select_next_state: None,
1736 select_prev_state: None,
1737 selection_history: Default::default(),
1738 autoclose_regions: Default::default(),
1739 snippet_stack: Default::default(),
1740 select_larger_syntax_node_stack: Vec::new(),
1741 ime_transaction: Default::default(),
1742 active_diagnostics: None,
1743 soft_wrap_mode_override,
1744 completion_provider: project.clone().map(|project| Box::new(project) as _),
1745 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1746 project,
1747 blink_manager: blink_manager.clone(),
1748 show_local_selections: true,
1749 mode,
1750 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1751 show_gutter: mode == EditorMode::Full,
1752 show_line_numbers: None,
1753 show_git_diff_gutter: None,
1754 show_code_actions: None,
1755 show_wrap_guides: None,
1756 show_indent_guides,
1757 placeholder_text: None,
1758 highlight_order: 0,
1759 highlighted_rows: HashMap::default(),
1760 background_highlights: Default::default(),
1761 gutter_highlights: TreeMap::default(),
1762 scrollbar_marker_state: ScrollbarMarkerState::default(),
1763 active_indent_guides_state: ActiveIndentGuidesState::default(),
1764 nav_history: None,
1765 context_menu: RwLock::new(None),
1766 mouse_context_menu: None,
1767 completion_tasks: Default::default(),
1768 find_all_references_task_sources: Vec::new(),
1769 next_completion_id: 0,
1770 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
1771 next_inlay_id: 0,
1772 available_code_actions: Default::default(),
1773 code_actions_task: Default::default(),
1774 document_highlights_task: Default::default(),
1775 linked_editing_range_task: Default::default(),
1776 pending_rename: Default::default(),
1777 searchable: true,
1778 cursor_shape: Default::default(),
1779 current_line_highlight: None,
1780 autoindent_mode: Some(AutoindentMode::EachLine),
1781 collapse_matches: false,
1782 workspace: None,
1783 keymap_context_layers: Default::default(),
1784 input_enabled: true,
1785 use_modal_editing: mode == EditorMode::Full,
1786 read_only: false,
1787 use_autoclose: true,
1788 auto_replace_emoji_shortcode: false,
1789 leader_peer_id: None,
1790 remote_id: None,
1791 hover_state: Default::default(),
1792 hovered_link_state: Default::default(),
1793 inline_completion_provider: None,
1794 active_inline_completion: None,
1795 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1796 expanded_hunks: ExpandedHunks::default(),
1797 gutter_hovered: false,
1798 pixel_position_of_newest_cursor: None,
1799 last_bounds: None,
1800 expect_bounds_change: None,
1801 gutter_dimensions: GutterDimensions::default(),
1802 style: None,
1803 show_cursor_names: false,
1804 hovered_cursors: Default::default(),
1805 editor_actions: Default::default(),
1806 vim_replace_map: Default::default(),
1807 show_inline_completions: mode == EditorMode::Full,
1808 custom_context_menu: None,
1809 show_git_blame_gutter: false,
1810 show_git_blame_inline: false,
1811 show_git_blame_inline_delay_task: None,
1812 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1813 blame: None,
1814 blame_subscription: None,
1815 tasks: Default::default(),
1816 _subscriptions: vec![
1817 cx.observe(&buffer, Self::on_buffer_changed),
1818 cx.subscribe(&buffer, Self::on_buffer_event),
1819 cx.observe(&display_map, Self::on_display_map_changed),
1820 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1821 cx.observe_global::<SettingsStore>(Self::settings_changed),
1822 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1823 cx.observe_window_activation(|editor, cx| {
1824 let active = cx.is_window_active();
1825 editor.blink_manager.update(cx, |blink_manager, cx| {
1826 if active {
1827 blink_manager.enable(cx);
1828 } else {
1829 blink_manager.show_cursor(cx);
1830 blink_manager.disable(cx);
1831 }
1832 });
1833 }),
1834 ],
1835 tasks_update_task: None,
1836 linked_edit_ranges: Default::default(),
1837 previous_search_ranges: None,
1838 };
1839 this.tasks_update_task = Some(this.refresh_runnables(cx));
1840 this._subscriptions.extend(project_subscriptions);
1841
1842 this.end_selection(cx);
1843 this.scroll_manager.show_scrollbar(cx);
1844
1845 if mode == EditorMode::Full {
1846 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1847 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1848
1849 if this.git_blame_inline_enabled {
1850 this.git_blame_inline_enabled = true;
1851 this.start_git_blame_inline(false, cx);
1852 }
1853 }
1854
1855 this.report_editor_event("open", None, cx);
1856 this
1857 }
1858
1859 pub fn mouse_menu_is_focused(&self, cx: &mut WindowContext) -> bool {
1860 self.mouse_context_menu
1861 .as_ref()
1862 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1863 }
1864
1865 fn key_context(&self, cx: &AppContext) -> KeyContext {
1866 let mut key_context = KeyContext::new_with_defaults();
1867 key_context.add("Editor");
1868 let mode = match self.mode {
1869 EditorMode::SingleLine => "single_line",
1870 EditorMode::AutoHeight { .. } => "auto_height",
1871 EditorMode::Full => "full",
1872 };
1873 key_context.set("mode", mode);
1874 if self.pending_rename.is_some() {
1875 key_context.add("renaming");
1876 }
1877 if self.context_menu_visible() {
1878 match self.context_menu.read().as_ref() {
1879 Some(ContextMenu::Completions(_)) => {
1880 key_context.add("menu");
1881 key_context.add("showing_completions")
1882 }
1883 Some(ContextMenu::CodeActions(_)) => {
1884 key_context.add("menu");
1885 key_context.add("showing_code_actions")
1886 }
1887 None => {}
1888 }
1889 }
1890
1891 for layer in self.keymap_context_layers.values() {
1892 key_context.extend(layer);
1893 }
1894
1895 if let Some(extension) = self
1896 .buffer
1897 .read(cx)
1898 .as_singleton()
1899 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1900 {
1901 key_context.set("extension", extension.to_string());
1902 }
1903
1904 if self.has_active_inline_completion(cx) {
1905 key_context.add("copilot_suggestion");
1906 key_context.add("inline_completion");
1907 }
1908
1909 key_context
1910 }
1911
1912 pub fn new_file(
1913 workspace: &mut Workspace,
1914 _: &workspace::NewFile,
1915 cx: &mut ViewContext<Workspace>,
1916 ) {
1917 let project = workspace.project().clone();
1918 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1919
1920 cx.spawn(|workspace, mut cx| async move {
1921 let buffer = create.await?;
1922 workspace.update(&mut cx, |workspace, cx| {
1923 workspace.add_item_to_active_pane(
1924 Box::new(
1925 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1926 ),
1927 None,
1928 cx,
1929 )
1930 })
1931 })
1932 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1933 ErrorCode::RemoteUpgradeRequired => Some(format!(
1934 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1935 e.error_tag("required").unwrap_or("the latest version")
1936 )),
1937 _ => None,
1938 });
1939 }
1940
1941 pub fn new_file_in_direction(
1942 workspace: &mut Workspace,
1943 action: &workspace::NewFileInDirection,
1944 cx: &mut ViewContext<Workspace>,
1945 ) {
1946 let project = workspace.project().clone();
1947 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1948 let direction = action.0;
1949
1950 cx.spawn(|workspace, mut cx| async move {
1951 let buffer = create.await?;
1952 workspace.update(&mut cx, move |workspace, cx| {
1953 workspace.split_item(
1954 direction,
1955 Box::new(
1956 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1957 ),
1958 cx,
1959 )
1960 })?;
1961 anyhow::Ok(())
1962 })
1963 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1964 ErrorCode::RemoteUpgradeRequired => Some(format!(
1965 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1966 e.error_tag("required").unwrap_or("the latest version")
1967 )),
1968 _ => None,
1969 });
1970 }
1971
1972 pub fn replica_id(&self, cx: &AppContext) -> ReplicaId {
1973 self.buffer.read(cx).replica_id()
1974 }
1975
1976 pub fn leader_peer_id(&self) -> Option<PeerId> {
1977 self.leader_peer_id
1978 }
1979
1980 pub fn buffer(&self) -> &Model<MultiBuffer> {
1981 &self.buffer
1982 }
1983
1984 pub fn workspace(&self) -> Option<View<Workspace>> {
1985 self.workspace.as_ref()?.0.upgrade()
1986 }
1987
1988 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1989 self.buffer().read(cx).title(cx)
1990 }
1991
1992 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1993 EditorSnapshot {
1994 mode: self.mode,
1995 show_gutter: self.show_gutter,
1996 show_line_numbers: self.show_line_numbers,
1997 show_git_diff_gutter: self.show_git_diff_gutter,
1998 show_code_actions: self.show_code_actions,
1999 render_git_blame_gutter: self.render_git_blame_gutter(cx),
2000 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2001 scroll_anchor: self.scroll_manager.anchor(),
2002 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2003 placeholder_text: self.placeholder_text.clone(),
2004 is_focused: self.focus_handle.is_focused(cx),
2005 current_line_highlight: self
2006 .current_line_highlight
2007 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2008 gutter_hovered: self.gutter_hovered,
2009 }
2010 }
2011
2012 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2013 self.buffer.read(cx).language_at(point, cx)
2014 }
2015
2016 pub fn file_at<T: ToOffset>(
2017 &self,
2018 point: T,
2019 cx: &AppContext,
2020 ) -> Option<Arc<dyn language::File>> {
2021 self.buffer.read(cx).read(cx).file_at(point).cloned()
2022 }
2023
2024 pub fn active_excerpt(
2025 &self,
2026 cx: &AppContext,
2027 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2028 self.buffer
2029 .read(cx)
2030 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2031 }
2032
2033 pub fn mode(&self) -> EditorMode {
2034 self.mode
2035 }
2036
2037 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2038 self.collaboration_hub.as_deref()
2039 }
2040
2041 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2042 self.collaboration_hub = Some(hub);
2043 }
2044
2045 pub fn set_custom_context_menu(
2046 &mut self,
2047 f: impl 'static
2048 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2049 ) {
2050 self.custom_context_menu = Some(Box::new(f))
2051 }
2052
2053 pub fn set_completion_provider(&mut self, provider: Box<dyn CompletionProvider>) {
2054 self.completion_provider = Some(provider);
2055 }
2056
2057 pub fn set_inline_completion_provider<T>(
2058 &mut self,
2059 provider: Option<Model<T>>,
2060 cx: &mut ViewContext<Self>,
2061 ) where
2062 T: InlineCompletionProvider,
2063 {
2064 self.inline_completion_provider =
2065 provider.map(|provider| RegisteredInlineCompletionProvider {
2066 _subscription: cx.observe(&provider, |this, _, cx| {
2067 if this.focus_handle.is_focused(cx) {
2068 this.update_visible_inline_completion(cx);
2069 }
2070 }),
2071 provider: Arc::new(provider),
2072 });
2073 self.refresh_inline_completion(false, cx);
2074 }
2075
2076 pub fn placeholder_text(&self, _cx: &mut WindowContext) -> Option<&str> {
2077 self.placeholder_text.as_deref()
2078 }
2079
2080 pub fn set_placeholder_text(
2081 &mut self,
2082 placeholder_text: impl Into<Arc<str>>,
2083 cx: &mut ViewContext<Self>,
2084 ) {
2085 let placeholder_text = Some(placeholder_text.into());
2086 if self.placeholder_text != placeholder_text {
2087 self.placeholder_text = placeholder_text;
2088 cx.notify();
2089 }
2090 }
2091
2092 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2093 self.cursor_shape = cursor_shape;
2094 cx.notify();
2095 }
2096
2097 pub fn set_current_line_highlight(
2098 &mut self,
2099 current_line_highlight: Option<CurrentLineHighlight>,
2100 ) {
2101 self.current_line_highlight = current_line_highlight;
2102 }
2103
2104 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2105 self.collapse_matches = collapse_matches;
2106 }
2107
2108 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2109 if self.collapse_matches {
2110 return range.start..range.start;
2111 }
2112 range.clone()
2113 }
2114
2115 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2116 if self.display_map.read(cx).clip_at_line_ends != clip {
2117 self.display_map
2118 .update(cx, |map, _| map.clip_at_line_ends = clip);
2119 }
2120 }
2121
2122 pub fn set_keymap_context_layer<Tag: 'static>(
2123 &mut self,
2124 context: KeyContext,
2125 cx: &mut ViewContext<Self>,
2126 ) {
2127 self.keymap_context_layers
2128 .insert(TypeId::of::<Tag>(), context);
2129 cx.notify();
2130 }
2131
2132 pub fn remove_keymap_context_layer<Tag: 'static>(&mut self, cx: &mut ViewContext<Self>) {
2133 self.keymap_context_layers.remove(&TypeId::of::<Tag>());
2134 cx.notify();
2135 }
2136
2137 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2138 self.input_enabled = input_enabled;
2139 }
2140
2141 pub fn set_autoindent(&mut self, autoindent: bool) {
2142 if autoindent {
2143 self.autoindent_mode = Some(AutoindentMode::EachLine);
2144 } else {
2145 self.autoindent_mode = None;
2146 }
2147 }
2148
2149 pub fn read_only(&self, cx: &AppContext) -> bool {
2150 self.read_only || self.buffer.read(cx).read_only()
2151 }
2152
2153 pub fn set_read_only(&mut self, read_only: bool) {
2154 self.read_only = read_only;
2155 }
2156
2157 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2158 self.use_autoclose = autoclose;
2159 }
2160
2161 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2162 self.auto_replace_emoji_shortcode = auto_replace;
2163 }
2164
2165 pub fn set_show_inline_completions(&mut self, show_inline_completions: bool) {
2166 self.show_inline_completions = show_inline_completions;
2167 }
2168
2169 pub fn set_use_modal_editing(&mut self, to: bool) {
2170 self.use_modal_editing = to;
2171 }
2172
2173 pub fn use_modal_editing(&self) -> bool {
2174 self.use_modal_editing
2175 }
2176
2177 fn selections_did_change(
2178 &mut self,
2179 local: bool,
2180 old_cursor_position: &Anchor,
2181 show_completions: bool,
2182 cx: &mut ViewContext<Self>,
2183 ) {
2184 // Copy selections to primary selection buffer
2185 #[cfg(target_os = "linux")]
2186 if local {
2187 let selections = self.selections.all::<usize>(cx);
2188 let buffer_handle = self.buffer.read(cx).read(cx);
2189
2190 let mut text = String::new();
2191 for (index, selection) in selections.iter().enumerate() {
2192 let text_for_selection = buffer_handle
2193 .text_for_range(selection.start..selection.end)
2194 .collect::<String>();
2195
2196 text.push_str(&text_for_selection);
2197 if index != selections.len() - 1 {
2198 text.push('\n');
2199 }
2200 }
2201
2202 if !text.is_empty() {
2203 cx.write_to_primary(ClipboardItem::new(text));
2204 }
2205 }
2206
2207 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2208 self.buffer.update(cx, |buffer, cx| {
2209 buffer.set_active_selections(
2210 &self.selections.disjoint_anchors(),
2211 self.selections.line_mode,
2212 self.cursor_shape,
2213 cx,
2214 )
2215 });
2216 }
2217 let display_map = self
2218 .display_map
2219 .update(cx, |display_map, cx| display_map.snapshot(cx));
2220 let buffer = &display_map.buffer_snapshot;
2221 self.add_selections_state = None;
2222 self.select_next_state = None;
2223 self.select_prev_state = None;
2224 self.select_larger_syntax_node_stack.clear();
2225 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2226 self.snippet_stack
2227 .invalidate(&self.selections.disjoint_anchors(), buffer);
2228 self.take_rename(false, cx);
2229
2230 let new_cursor_position = self.selections.newest_anchor().head();
2231
2232 self.push_to_nav_history(
2233 *old_cursor_position,
2234 Some(new_cursor_position.to_point(buffer)),
2235 cx,
2236 );
2237
2238 if local {
2239 let new_cursor_position = self.selections.newest_anchor().head();
2240 let mut context_menu = self.context_menu.write();
2241 let completion_menu = match context_menu.as_ref() {
2242 Some(ContextMenu::Completions(menu)) => Some(menu),
2243
2244 _ => {
2245 *context_menu = None;
2246 None
2247 }
2248 };
2249
2250 if let Some(completion_menu) = completion_menu {
2251 let cursor_position = new_cursor_position.to_offset(buffer);
2252 let (word_range, kind) = buffer.surrounding_word(completion_menu.initial_position);
2253 if kind == Some(CharKind::Word)
2254 && word_range.to_inclusive().contains(&cursor_position)
2255 {
2256 let mut completion_menu = completion_menu.clone();
2257 drop(context_menu);
2258
2259 let query = Self::completion_query(buffer, cursor_position);
2260 cx.spawn(move |this, mut cx| async move {
2261 completion_menu
2262 .filter(query.as_deref(), cx.background_executor().clone())
2263 .await;
2264
2265 this.update(&mut cx, |this, cx| {
2266 let mut context_menu = this.context_menu.write();
2267 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2268 return;
2269 };
2270
2271 if menu.id > completion_menu.id {
2272 return;
2273 }
2274
2275 *context_menu = Some(ContextMenu::Completions(completion_menu));
2276 drop(context_menu);
2277 cx.notify();
2278 })
2279 })
2280 .detach();
2281
2282 if show_completions {
2283 self.show_completions(&ShowCompletions, cx);
2284 }
2285 } else {
2286 drop(context_menu);
2287 self.hide_context_menu(cx);
2288 }
2289 } else {
2290 drop(context_menu);
2291 }
2292
2293 hide_hover(self, cx);
2294
2295 if old_cursor_position.to_display_point(&display_map).row()
2296 != new_cursor_position.to_display_point(&display_map).row()
2297 {
2298 self.available_code_actions.take();
2299 }
2300 self.refresh_code_actions(cx);
2301 self.refresh_document_highlights(cx);
2302 refresh_matching_bracket_highlights(self, cx);
2303 self.discard_inline_completion(false, cx);
2304 linked_editing_ranges::refresh_linked_ranges(self, cx);
2305 if self.git_blame_inline_enabled {
2306 self.start_inline_blame_timer(cx);
2307 }
2308 }
2309
2310 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2311 cx.emit(EditorEvent::SelectionsChanged { local });
2312
2313 if self.selections.disjoint_anchors().len() == 1 {
2314 cx.emit(SearchEvent::ActiveMatchChanged)
2315 }
2316 cx.notify();
2317 }
2318
2319 pub fn change_selections<R>(
2320 &mut self,
2321 autoscroll: Option<Autoscroll>,
2322 cx: &mut ViewContext<Self>,
2323 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2324 ) -> R {
2325 self.change_selections_inner(autoscroll, true, cx, change)
2326 }
2327
2328 pub fn change_selections_inner<R>(
2329 &mut self,
2330 autoscroll: Option<Autoscroll>,
2331 request_completions: bool,
2332 cx: &mut ViewContext<Self>,
2333 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2334 ) -> R {
2335 let old_cursor_position = self.selections.newest_anchor().head();
2336 self.push_to_selection_history();
2337
2338 let (changed, result) = self.selections.change_with(cx, change);
2339
2340 if changed {
2341 if let Some(autoscroll) = autoscroll {
2342 self.request_autoscroll(autoscroll, cx);
2343 }
2344 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2345 }
2346
2347 result
2348 }
2349
2350 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2351 where
2352 I: IntoIterator<Item = (Range<S>, T)>,
2353 S: ToOffset,
2354 T: Into<Arc<str>>,
2355 {
2356 if self.read_only(cx) {
2357 return;
2358 }
2359
2360 self.buffer
2361 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2362 }
2363
2364 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2365 where
2366 I: IntoIterator<Item = (Range<S>, T)>,
2367 S: ToOffset,
2368 T: Into<Arc<str>>,
2369 {
2370 if self.read_only(cx) {
2371 return;
2372 }
2373
2374 self.buffer.update(cx, |buffer, cx| {
2375 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2376 });
2377 }
2378
2379 pub fn edit_with_block_indent<I, S, T>(
2380 &mut self,
2381 edits: I,
2382 original_indent_columns: Vec<u32>,
2383 cx: &mut ViewContext<Self>,
2384 ) where
2385 I: IntoIterator<Item = (Range<S>, T)>,
2386 S: ToOffset,
2387 T: Into<Arc<str>>,
2388 {
2389 if self.read_only(cx) {
2390 return;
2391 }
2392
2393 self.buffer.update(cx, |buffer, cx| {
2394 buffer.edit(
2395 edits,
2396 Some(AutoindentMode::Block {
2397 original_indent_columns,
2398 }),
2399 cx,
2400 )
2401 });
2402 }
2403
2404 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2405 self.hide_context_menu(cx);
2406
2407 match phase {
2408 SelectPhase::Begin {
2409 position,
2410 add,
2411 click_count,
2412 } => self.begin_selection(position, add, click_count, cx),
2413 SelectPhase::BeginColumnar {
2414 position,
2415 goal_column,
2416 reset,
2417 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2418 SelectPhase::Extend {
2419 position,
2420 click_count,
2421 } => self.extend_selection(position, click_count, cx),
2422 SelectPhase::Update {
2423 position,
2424 goal_column,
2425 scroll_delta,
2426 } => self.update_selection(position, goal_column, scroll_delta, cx),
2427 SelectPhase::End => self.end_selection(cx),
2428 }
2429 }
2430
2431 fn extend_selection(
2432 &mut self,
2433 position: DisplayPoint,
2434 click_count: usize,
2435 cx: &mut ViewContext<Self>,
2436 ) {
2437 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2438 let tail = self.selections.newest::<usize>(cx).tail();
2439 self.begin_selection(position, false, click_count, cx);
2440
2441 let position = position.to_offset(&display_map, Bias::Left);
2442 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2443
2444 let mut pending_selection = self
2445 .selections
2446 .pending_anchor()
2447 .expect("extend_selection not called with pending selection");
2448 if position >= tail {
2449 pending_selection.start = tail_anchor;
2450 } else {
2451 pending_selection.end = tail_anchor;
2452 pending_selection.reversed = true;
2453 }
2454
2455 let mut pending_mode = self.selections.pending_mode().unwrap();
2456 match &mut pending_mode {
2457 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2458 _ => {}
2459 }
2460
2461 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2462 s.set_pending(pending_selection, pending_mode)
2463 });
2464 }
2465
2466 fn begin_selection(
2467 &mut self,
2468 position: DisplayPoint,
2469 add: bool,
2470 click_count: usize,
2471 cx: &mut ViewContext<Self>,
2472 ) {
2473 if !self.focus_handle.is_focused(cx) {
2474 cx.focus(&self.focus_handle);
2475 }
2476
2477 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2478 let buffer = &display_map.buffer_snapshot;
2479 let newest_selection = self.selections.newest_anchor().clone();
2480 let position = display_map.clip_point(position, Bias::Left);
2481
2482 let start;
2483 let end;
2484 let mode;
2485 let auto_scroll;
2486 match click_count {
2487 1 => {
2488 start = buffer.anchor_before(position.to_point(&display_map));
2489 end = start;
2490 mode = SelectMode::Character;
2491 auto_scroll = true;
2492 }
2493 2 => {
2494 let range = movement::surrounding_word(&display_map, position);
2495 start = buffer.anchor_before(range.start.to_point(&display_map));
2496 end = buffer.anchor_before(range.end.to_point(&display_map));
2497 mode = SelectMode::Word(start..end);
2498 auto_scroll = true;
2499 }
2500 3 => {
2501 let position = display_map
2502 .clip_point(position, Bias::Left)
2503 .to_point(&display_map);
2504 let line_start = display_map.prev_line_boundary(position).0;
2505 let next_line_start = buffer.clip_point(
2506 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2507 Bias::Left,
2508 );
2509 start = buffer.anchor_before(line_start);
2510 end = buffer.anchor_before(next_line_start);
2511 mode = SelectMode::Line(start..end);
2512 auto_scroll = true;
2513 }
2514 _ => {
2515 start = buffer.anchor_before(0);
2516 end = buffer.anchor_before(buffer.len());
2517 mode = SelectMode::All;
2518 auto_scroll = false;
2519 }
2520 }
2521
2522 self.change_selections(auto_scroll.then(|| Autoscroll::newest()), cx, |s| {
2523 if !add {
2524 s.clear_disjoint();
2525 } else if click_count > 1 {
2526 s.delete(newest_selection.id)
2527 }
2528
2529 s.set_pending_anchor_range(start..end, mode);
2530 });
2531 }
2532
2533 fn begin_columnar_selection(
2534 &mut self,
2535 position: DisplayPoint,
2536 goal_column: u32,
2537 reset: bool,
2538 cx: &mut ViewContext<Self>,
2539 ) {
2540 if !self.focus_handle.is_focused(cx) {
2541 cx.focus(&self.focus_handle);
2542 }
2543
2544 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2545
2546 if reset {
2547 let pointer_position = display_map
2548 .buffer_snapshot
2549 .anchor_before(position.to_point(&display_map));
2550
2551 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2552 s.clear_disjoint();
2553 s.set_pending_anchor_range(
2554 pointer_position..pointer_position,
2555 SelectMode::Character,
2556 );
2557 });
2558 }
2559
2560 let tail = self.selections.newest::<Point>(cx).tail();
2561 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2562
2563 if !reset {
2564 self.select_columns(
2565 tail.to_display_point(&display_map),
2566 position,
2567 goal_column,
2568 &display_map,
2569 cx,
2570 );
2571 }
2572 }
2573
2574 fn update_selection(
2575 &mut self,
2576 position: DisplayPoint,
2577 goal_column: u32,
2578 scroll_delta: gpui::Point<f32>,
2579 cx: &mut ViewContext<Self>,
2580 ) {
2581 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2582
2583 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2584 let tail = tail.to_display_point(&display_map);
2585 self.select_columns(tail, position, goal_column, &display_map, cx);
2586 } else if let Some(mut pending) = self.selections.pending_anchor() {
2587 let buffer = self.buffer.read(cx).snapshot(cx);
2588 let head;
2589 let tail;
2590 let mode = self.selections.pending_mode().unwrap();
2591 match &mode {
2592 SelectMode::Character => {
2593 head = position.to_point(&display_map);
2594 tail = pending.tail().to_point(&buffer);
2595 }
2596 SelectMode::Word(original_range) => {
2597 let original_display_range = original_range.start.to_display_point(&display_map)
2598 ..original_range.end.to_display_point(&display_map);
2599 let original_buffer_range = original_display_range.start.to_point(&display_map)
2600 ..original_display_range.end.to_point(&display_map);
2601 if movement::is_inside_word(&display_map, position)
2602 || original_display_range.contains(&position)
2603 {
2604 let word_range = movement::surrounding_word(&display_map, position);
2605 if word_range.start < original_display_range.start {
2606 head = word_range.start.to_point(&display_map);
2607 } else {
2608 head = word_range.end.to_point(&display_map);
2609 }
2610 } else {
2611 head = position.to_point(&display_map);
2612 }
2613
2614 if head <= original_buffer_range.start {
2615 tail = original_buffer_range.end;
2616 } else {
2617 tail = original_buffer_range.start;
2618 }
2619 }
2620 SelectMode::Line(original_range) => {
2621 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2622
2623 let position = display_map
2624 .clip_point(position, Bias::Left)
2625 .to_point(&display_map);
2626 let line_start = display_map.prev_line_boundary(position).0;
2627 let next_line_start = buffer.clip_point(
2628 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2629 Bias::Left,
2630 );
2631
2632 if line_start < original_range.start {
2633 head = line_start
2634 } else {
2635 head = next_line_start
2636 }
2637
2638 if head <= original_range.start {
2639 tail = original_range.end;
2640 } else {
2641 tail = original_range.start;
2642 }
2643 }
2644 SelectMode::All => {
2645 return;
2646 }
2647 };
2648
2649 if head < tail {
2650 pending.start = buffer.anchor_before(head);
2651 pending.end = buffer.anchor_before(tail);
2652 pending.reversed = true;
2653 } else {
2654 pending.start = buffer.anchor_before(tail);
2655 pending.end = buffer.anchor_before(head);
2656 pending.reversed = false;
2657 }
2658
2659 self.change_selections(None, cx, |s| {
2660 s.set_pending(pending, mode);
2661 });
2662 } else {
2663 log::error!("update_selection dispatched with no pending selection");
2664 return;
2665 }
2666
2667 self.apply_scroll_delta(scroll_delta, cx);
2668 cx.notify();
2669 }
2670
2671 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2672 self.columnar_selection_tail.take();
2673 if self.selections.pending_anchor().is_some() {
2674 let selections = self.selections.all::<usize>(cx);
2675 self.change_selections(None, cx, |s| {
2676 s.select(selections);
2677 s.clear_pending();
2678 });
2679 }
2680 }
2681
2682 fn select_columns(
2683 &mut self,
2684 tail: DisplayPoint,
2685 head: DisplayPoint,
2686 goal_column: u32,
2687 display_map: &DisplaySnapshot,
2688 cx: &mut ViewContext<Self>,
2689 ) {
2690 let start_row = cmp::min(tail.row(), head.row());
2691 let end_row = cmp::max(tail.row(), head.row());
2692 let start_column = cmp::min(tail.column(), goal_column);
2693 let end_column = cmp::max(tail.column(), goal_column);
2694 let reversed = start_column < tail.column();
2695
2696 let selection_ranges = (start_row.0..=end_row.0)
2697 .map(DisplayRow)
2698 .filter_map(|row| {
2699 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2700 let start = display_map
2701 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2702 .to_point(display_map);
2703 let end = display_map
2704 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2705 .to_point(display_map);
2706 if reversed {
2707 Some(end..start)
2708 } else {
2709 Some(start..end)
2710 }
2711 } else {
2712 None
2713 }
2714 })
2715 .collect::<Vec<_>>();
2716
2717 self.change_selections(None, cx, |s| {
2718 s.select_ranges(selection_ranges);
2719 });
2720 cx.notify();
2721 }
2722
2723 pub fn has_pending_nonempty_selection(&self) -> bool {
2724 let pending_nonempty_selection = match self.selections.pending_anchor() {
2725 Some(Selection { start, end, .. }) => start != end,
2726 None => false,
2727 };
2728 pending_nonempty_selection || self.columnar_selection_tail.is_some()
2729 }
2730
2731 pub fn has_pending_selection(&self) -> bool {
2732 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2733 }
2734
2735 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2736 self.clear_expanded_diff_hunks(cx);
2737 if self.dismiss_menus_and_popups(true, cx) {
2738 return;
2739 }
2740
2741 if self.mode == EditorMode::Full {
2742 if self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel()) {
2743 return;
2744 }
2745 }
2746
2747 cx.propagate();
2748 }
2749
2750 pub fn dismiss_menus_and_popups(
2751 &mut self,
2752 should_report_inline_completion_event: bool,
2753 cx: &mut ViewContext<Self>,
2754 ) -> bool {
2755 if self.take_rename(false, cx).is_some() {
2756 return true;
2757 }
2758
2759 if hide_hover(self, cx) {
2760 return true;
2761 }
2762
2763 if self.hide_context_menu(cx).is_some() {
2764 return true;
2765 }
2766
2767 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2768 return true;
2769 }
2770
2771 if self.snippet_stack.pop().is_some() {
2772 return true;
2773 }
2774
2775 if self.mode == EditorMode::Full {
2776 if self.active_diagnostics.is_some() {
2777 self.dismiss_diagnostics(cx);
2778 return true;
2779 }
2780 }
2781
2782 false
2783 }
2784
2785 fn linked_editing_ranges_for(
2786 &self,
2787 selection: Range<text::Anchor>,
2788 cx: &AppContext,
2789 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2790 if self.linked_edit_ranges.is_empty() {
2791 return None;
2792 }
2793 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2794 selection.end.buffer_id.and_then(|end_buffer_id| {
2795 if selection.start.buffer_id != Some(end_buffer_id) {
2796 return None;
2797 }
2798 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2799 let snapshot = buffer.read(cx).snapshot();
2800 self.linked_edit_ranges
2801 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2802 .map(|ranges| (ranges, snapshot, buffer))
2803 })?;
2804 use text::ToOffset as TO;
2805 // find offset from the start of current range to current cursor position
2806 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2807
2808 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2809 let start_difference = start_offset - start_byte_offset;
2810 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2811 let end_difference = end_offset - start_byte_offset;
2812 // Current range has associated linked ranges.
2813 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2814 for range in linked_ranges.iter() {
2815 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2816 let end_offset = start_offset + end_difference;
2817 let start_offset = start_offset + start_difference;
2818 let start = buffer_snapshot.anchor_after(start_offset);
2819 let end = buffer_snapshot.anchor_after(end_offset);
2820 linked_edits
2821 .entry(buffer.clone())
2822 .or_default()
2823 .push(start..end);
2824 }
2825 Some(linked_edits)
2826 }
2827
2828 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2829 let text: Arc<str> = text.into();
2830
2831 if self.read_only(cx) {
2832 return;
2833 }
2834
2835 let selections = self.selections.all_adjusted(cx);
2836 let mut brace_inserted = false;
2837 let mut edits = Vec::new();
2838 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2839 let mut new_selections = Vec::with_capacity(selections.len());
2840 let mut new_autoclose_regions = Vec::new();
2841 let snapshot = self.buffer.read(cx).read(cx);
2842
2843 for (selection, autoclose_region) in
2844 self.selections_with_autoclose_regions(selections, &snapshot)
2845 {
2846 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2847 // Determine if the inserted text matches the opening or closing
2848 // bracket of any of this language's bracket pairs.
2849 let mut bracket_pair = None;
2850 let mut is_bracket_pair_start = false;
2851 let mut is_bracket_pair_end = false;
2852 if !text.is_empty() {
2853 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2854 // and they are removing the character that triggered IME popup.
2855 for (pair, enabled) in scope.brackets() {
2856 if !pair.close {
2857 continue;
2858 }
2859
2860 if enabled && pair.start.ends_with(text.as_ref()) {
2861 bracket_pair = Some(pair.clone());
2862 is_bracket_pair_start = true;
2863 break;
2864 }
2865 if pair.end.as_str() == text.as_ref() {
2866 bracket_pair = Some(pair.clone());
2867 is_bracket_pair_end = true;
2868 break;
2869 }
2870 }
2871 }
2872
2873 if let Some(bracket_pair) = bracket_pair {
2874 let autoclose = self.use_autoclose
2875 && snapshot.settings_at(selection.start, cx).use_autoclose;
2876
2877 if selection.is_empty() {
2878 if is_bracket_pair_start {
2879 let prefix_len = bracket_pair.start.len() - text.len();
2880
2881 // If the inserted text is a suffix of an opening bracket and the
2882 // selection is preceded by the rest of the opening bracket, then
2883 // insert the closing bracket.
2884 let following_text_allows_autoclose = snapshot
2885 .chars_at(selection.start)
2886 .next()
2887 .map_or(true, |c| scope.should_autoclose_before(c));
2888 let preceding_text_matches_prefix = prefix_len == 0
2889 || (selection.start.column >= (prefix_len as u32)
2890 && snapshot.contains_str_at(
2891 Point::new(
2892 selection.start.row,
2893 selection.start.column - (prefix_len as u32),
2894 ),
2895 &bracket_pair.start[..prefix_len],
2896 ));
2897 if autoclose
2898 && following_text_allows_autoclose
2899 && preceding_text_matches_prefix
2900 {
2901 let anchor = snapshot.anchor_before(selection.end);
2902 new_selections.push((selection.map(|_| anchor), text.len()));
2903 new_autoclose_regions.push((
2904 anchor,
2905 text.len(),
2906 selection.id,
2907 bracket_pair.clone(),
2908 ));
2909 edits.push((
2910 selection.range(),
2911 format!("{}{}", text, bracket_pair.end).into(),
2912 ));
2913 brace_inserted = true;
2914 continue;
2915 }
2916 }
2917
2918 if let Some(region) = autoclose_region {
2919 // If the selection is followed by an auto-inserted closing bracket,
2920 // then don't insert that closing bracket again; just move the selection
2921 // past the closing bracket.
2922 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2923 && text.as_ref() == region.pair.end.as_str();
2924 if should_skip {
2925 let anchor = snapshot.anchor_after(selection.end);
2926 new_selections
2927 .push((selection.map(|_| anchor), region.pair.end.len()));
2928 continue;
2929 }
2930 }
2931
2932 let always_treat_brackets_as_autoclosed = snapshot
2933 .settings_at(selection.start, cx)
2934 .always_treat_brackets_as_autoclosed;
2935 if always_treat_brackets_as_autoclosed
2936 && is_bracket_pair_end
2937 && snapshot.contains_str_at(selection.end, text.as_ref())
2938 {
2939 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2940 // and the inserted text is a closing bracket and the selection is followed
2941 // by the closing bracket then move the selection past the closing bracket.
2942 let anchor = snapshot.anchor_after(selection.end);
2943 new_selections.push((selection.map(|_| anchor), text.len()));
2944 continue;
2945 }
2946 }
2947 // If an opening bracket is 1 character long and is typed while
2948 // text is selected, then surround that text with the bracket pair.
2949 else if autoclose
2950 && is_bracket_pair_start
2951 && bracket_pair.start.chars().count() == 1
2952 {
2953 edits.push((selection.start..selection.start, text.clone()));
2954 edits.push((
2955 selection.end..selection.end,
2956 bracket_pair.end.as_str().into(),
2957 ));
2958 brace_inserted = true;
2959 new_selections.push((
2960 Selection {
2961 id: selection.id,
2962 start: snapshot.anchor_after(selection.start),
2963 end: snapshot.anchor_before(selection.end),
2964 reversed: selection.reversed,
2965 goal: selection.goal,
2966 },
2967 0,
2968 ));
2969 continue;
2970 }
2971 }
2972 }
2973
2974 if self.auto_replace_emoji_shortcode
2975 && selection.is_empty()
2976 && text.as_ref().ends_with(':')
2977 {
2978 if let Some(possible_emoji_short_code) =
2979 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2980 {
2981 if !possible_emoji_short_code.is_empty() {
2982 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2983 let emoji_shortcode_start = Point::new(
2984 selection.start.row,
2985 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2986 );
2987
2988 // Remove shortcode from buffer
2989 edits.push((
2990 emoji_shortcode_start..selection.start,
2991 "".to_string().into(),
2992 ));
2993 new_selections.push((
2994 Selection {
2995 id: selection.id,
2996 start: snapshot.anchor_after(emoji_shortcode_start),
2997 end: snapshot.anchor_before(selection.start),
2998 reversed: selection.reversed,
2999 goal: selection.goal,
3000 },
3001 0,
3002 ));
3003
3004 // Insert emoji
3005 let selection_start_anchor = snapshot.anchor_after(selection.start);
3006 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3007 edits.push((selection.start..selection.end, emoji.to_string().into()));
3008
3009 continue;
3010 }
3011 }
3012 }
3013 }
3014
3015 // If not handling any auto-close operation, then just replace the selected
3016 // text with the given input and move the selection to the end of the
3017 // newly inserted text.
3018 let anchor = snapshot.anchor_after(selection.end);
3019 if !self.linked_edit_ranges.is_empty() {
3020 let start_anchor = snapshot.anchor_before(selection.start);
3021 if let Some(ranges) =
3022 self.linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3023 {
3024 for (buffer, edits) in ranges {
3025 linked_edits
3026 .entry(buffer.clone())
3027 .or_default()
3028 .extend(edits.into_iter().map(|range| (range, text.clone())));
3029 }
3030 }
3031 }
3032
3033 new_selections.push((selection.map(|_| anchor), 0));
3034 edits.push((selection.start..selection.end, text.clone()));
3035 }
3036
3037 drop(snapshot);
3038
3039 self.transact(cx, |this, cx| {
3040 this.buffer.update(cx, |buffer, cx| {
3041 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3042 });
3043 for (buffer, edits) in linked_edits {
3044 buffer.update(cx, |buffer, cx| {
3045 let snapshot = buffer.snapshot();
3046 let edits = edits
3047 .into_iter()
3048 .map(|(range, text)| {
3049 use text::ToPoint as TP;
3050 let end_point = TP::to_point(&range.end, &snapshot);
3051 let start_point = TP::to_point(&range.start, &snapshot);
3052 (start_point..end_point, text)
3053 })
3054 .sorted_by_key(|(range, _)| range.start)
3055 .collect::<Vec<_>>();
3056 buffer.edit(edits, None, cx);
3057 })
3058 }
3059 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3060 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3061 let snapshot = this.buffer.read(cx).read(cx);
3062 let new_selections = resolve_multiple::<usize, _>(new_anchor_selections, &snapshot)
3063 .zip(new_selection_deltas)
3064 .map(|(selection, delta)| Selection {
3065 id: selection.id,
3066 start: selection.start + delta,
3067 end: selection.end + delta,
3068 reversed: selection.reversed,
3069 goal: SelectionGoal::None,
3070 })
3071 .collect::<Vec<_>>();
3072
3073 let mut i = 0;
3074 for (position, delta, selection_id, pair) in new_autoclose_regions {
3075 let position = position.to_offset(&snapshot) + delta;
3076 let start = snapshot.anchor_before(position);
3077 let end = snapshot.anchor_after(position);
3078 while let Some(existing_state) = this.autoclose_regions.get(i) {
3079 match existing_state.range.start.cmp(&start, &snapshot) {
3080 Ordering::Less => i += 1,
3081 Ordering::Greater => break,
3082 Ordering::Equal => match end.cmp(&existing_state.range.end, &snapshot) {
3083 Ordering::Less => i += 1,
3084 Ordering::Equal => break,
3085 Ordering::Greater => break,
3086 },
3087 }
3088 }
3089 this.autoclose_regions.insert(
3090 i,
3091 AutocloseRegion {
3092 selection_id,
3093 range: start..end,
3094 pair,
3095 },
3096 );
3097 }
3098
3099 drop(snapshot);
3100 let had_active_inline_completion = this.has_active_inline_completion(cx);
3101 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3102 s.select(new_selections)
3103 });
3104
3105 if !brace_inserted && EditorSettings::get_global(cx).use_on_type_format {
3106 if let Some(on_type_format_task) =
3107 this.trigger_on_type_formatting(text.to_string(), cx)
3108 {
3109 on_type_format_task.detach_and_log_err(cx);
3110 }
3111 }
3112
3113 let trigger_in_words = !had_active_inline_completion;
3114 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3115 linked_editing_ranges::refresh_linked_ranges(this, cx);
3116 this.refresh_inline_completion(true, cx);
3117 });
3118 }
3119
3120 fn find_possible_emoji_shortcode_at_position(
3121 snapshot: &MultiBufferSnapshot,
3122 position: Point,
3123 ) -> Option<String> {
3124 let mut chars = Vec::new();
3125 let mut found_colon = false;
3126 for char in snapshot.reversed_chars_at(position).take(100) {
3127 // Found a possible emoji shortcode in the middle of the buffer
3128 if found_colon {
3129 if char.is_whitespace() {
3130 chars.reverse();
3131 return Some(chars.iter().collect());
3132 }
3133 // If the previous character is not a whitespace, we are in the middle of a word
3134 // and we only want to complete the shortcode if the word is made up of other emojis
3135 let mut containing_word = String::new();
3136 for ch in snapshot
3137 .reversed_chars_at(position)
3138 .skip(chars.len() + 1)
3139 .take(100)
3140 {
3141 if ch.is_whitespace() {
3142 break;
3143 }
3144 containing_word.push(ch);
3145 }
3146 let containing_word = containing_word.chars().rev().collect::<String>();
3147 if util::word_consists_of_emojis(containing_word.as_str()) {
3148 chars.reverse();
3149 return Some(chars.iter().collect());
3150 }
3151 }
3152
3153 if char.is_whitespace() || !char.is_ascii() {
3154 return None;
3155 }
3156 if char == ':' {
3157 found_colon = true;
3158 } else {
3159 chars.push(char);
3160 }
3161 }
3162 // Found a possible emoji shortcode at the beginning of the buffer
3163 chars.reverse();
3164 Some(chars.iter().collect())
3165 }
3166
3167 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3168 self.transact(cx, |this, cx| {
3169 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3170 let selections = this.selections.all::<usize>(cx);
3171 let multi_buffer = this.buffer.read(cx);
3172 let buffer = multi_buffer.snapshot(cx);
3173 selections
3174 .iter()
3175 .map(|selection| {
3176 let start_point = selection.start.to_point(&buffer);
3177 let mut indent =
3178 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3179 indent.len = cmp::min(indent.len, start_point.column);
3180 let start = selection.start;
3181 let end = selection.end;
3182 let selection_is_empty = start == end;
3183 let language_scope = buffer.language_scope_at(start);
3184 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3185 &language_scope
3186 {
3187 let leading_whitespace_len = buffer
3188 .reversed_chars_at(start)
3189 .take_while(|c| c.is_whitespace() && *c != '\n')
3190 .map(|c| c.len_utf8())
3191 .sum::<usize>();
3192
3193 let trailing_whitespace_len = buffer
3194 .chars_at(end)
3195 .take_while(|c| c.is_whitespace() && *c != '\n')
3196 .map(|c| c.len_utf8())
3197 .sum::<usize>();
3198
3199 let insert_extra_newline =
3200 language.brackets().any(|(pair, enabled)| {
3201 let pair_start = pair.start.trim_end();
3202 let pair_end = pair.end.trim_start();
3203
3204 enabled
3205 && pair.newline
3206 && buffer.contains_str_at(
3207 end + trailing_whitespace_len,
3208 pair_end,
3209 )
3210 && buffer.contains_str_at(
3211 (start - leading_whitespace_len)
3212 .saturating_sub(pair_start.len()),
3213 pair_start,
3214 )
3215 });
3216
3217 // Comment extension on newline is allowed only for cursor selections
3218 let comment_delimiter = maybe!({
3219 if !selection_is_empty {
3220 return None;
3221 }
3222
3223 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3224 return None;
3225 }
3226
3227 let delimiters = language.line_comment_prefixes();
3228 let max_len_of_delimiter =
3229 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3230 let (snapshot, range) =
3231 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3232
3233 let mut index_of_first_non_whitespace = 0;
3234 let comment_candidate = snapshot
3235 .chars_for_range(range)
3236 .skip_while(|c| {
3237 let should_skip = c.is_whitespace();
3238 if should_skip {
3239 index_of_first_non_whitespace += 1;
3240 }
3241 should_skip
3242 })
3243 .take(max_len_of_delimiter)
3244 .collect::<String>();
3245 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3246 comment_candidate.starts_with(comment_prefix.as_ref())
3247 })?;
3248 let cursor_is_placed_after_comment_marker =
3249 index_of_first_non_whitespace + comment_prefix.len()
3250 <= start_point.column as usize;
3251 if cursor_is_placed_after_comment_marker {
3252 Some(comment_prefix.clone())
3253 } else {
3254 None
3255 }
3256 });
3257 (comment_delimiter, insert_extra_newline)
3258 } else {
3259 (None, false)
3260 };
3261
3262 let capacity_for_delimiter = comment_delimiter
3263 .as_deref()
3264 .map(str::len)
3265 .unwrap_or_default();
3266 let mut new_text =
3267 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3268 new_text.push_str("\n");
3269 new_text.extend(indent.chars());
3270 if let Some(delimiter) = &comment_delimiter {
3271 new_text.push_str(&delimiter);
3272 }
3273 if insert_extra_newline {
3274 new_text = new_text.repeat(2);
3275 }
3276
3277 let anchor = buffer.anchor_after(end);
3278 let new_selection = selection.map(|_| anchor);
3279 (
3280 (start..end, new_text),
3281 (insert_extra_newline, new_selection),
3282 )
3283 })
3284 .unzip()
3285 };
3286
3287 this.edit_with_autoindent(edits, cx);
3288 let buffer = this.buffer.read(cx).snapshot(cx);
3289 let new_selections = selection_fixup_info
3290 .into_iter()
3291 .map(|(extra_newline_inserted, new_selection)| {
3292 let mut cursor = new_selection.end.to_point(&buffer);
3293 if extra_newline_inserted {
3294 cursor.row -= 1;
3295 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3296 }
3297 new_selection.map(|_| cursor)
3298 })
3299 .collect();
3300
3301 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3302 this.refresh_inline_completion(true, cx);
3303 });
3304 }
3305
3306 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3307 let buffer = self.buffer.read(cx);
3308 let snapshot = buffer.snapshot(cx);
3309
3310 let mut edits = Vec::new();
3311 let mut rows = Vec::new();
3312
3313 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3314 let cursor = selection.head();
3315 let row = cursor.row;
3316
3317 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3318
3319 let newline = "\n".to_string();
3320 edits.push((start_of_line..start_of_line, newline));
3321
3322 rows.push(row + rows_inserted as u32);
3323 }
3324
3325 self.transact(cx, |editor, cx| {
3326 editor.edit(edits, cx);
3327
3328 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3329 let mut index = 0;
3330 s.move_cursors_with(|map, _, _| {
3331 let row = rows[index];
3332 index += 1;
3333
3334 let point = Point::new(row, 0);
3335 let boundary = map.next_line_boundary(point).1;
3336 let clipped = map.clip_point(boundary, Bias::Left);
3337
3338 (clipped, SelectionGoal::None)
3339 });
3340 });
3341
3342 let mut indent_edits = Vec::new();
3343 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3344 for row in rows {
3345 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3346 for (row, indent) in indents {
3347 if indent.len == 0 {
3348 continue;
3349 }
3350
3351 let text = match indent.kind {
3352 IndentKind::Space => " ".repeat(indent.len as usize),
3353 IndentKind::Tab => "\t".repeat(indent.len as usize),
3354 };
3355 let point = Point::new(row.0, 0);
3356 indent_edits.push((point..point, text));
3357 }
3358 }
3359 editor.edit(indent_edits, cx);
3360 });
3361 }
3362
3363 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3364 let buffer = self.buffer.read(cx);
3365 let snapshot = buffer.snapshot(cx);
3366
3367 let mut edits = Vec::new();
3368 let mut rows = Vec::new();
3369 let mut rows_inserted = 0;
3370
3371 for selection in self.selections.all_adjusted(cx) {
3372 let cursor = selection.head();
3373 let row = cursor.row;
3374
3375 let point = Point::new(row + 1, 0);
3376 let start_of_line = snapshot.clip_point(point, Bias::Left);
3377
3378 let newline = "\n".to_string();
3379 edits.push((start_of_line..start_of_line, newline));
3380
3381 rows_inserted += 1;
3382 rows.push(row + rows_inserted);
3383 }
3384
3385 self.transact(cx, |editor, cx| {
3386 editor.edit(edits, cx);
3387
3388 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3389 let mut index = 0;
3390 s.move_cursors_with(|map, _, _| {
3391 let row = rows[index];
3392 index += 1;
3393
3394 let point = Point::new(row, 0);
3395 let boundary = map.next_line_boundary(point).1;
3396 let clipped = map.clip_point(boundary, Bias::Left);
3397
3398 (clipped, SelectionGoal::None)
3399 });
3400 });
3401
3402 let mut indent_edits = Vec::new();
3403 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3404 for row in rows {
3405 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3406 for (row, indent) in indents {
3407 if indent.len == 0 {
3408 continue;
3409 }
3410
3411 let text = match indent.kind {
3412 IndentKind::Space => " ".repeat(indent.len as usize),
3413 IndentKind::Tab => "\t".repeat(indent.len as usize),
3414 };
3415 let point = Point::new(row.0, 0);
3416 indent_edits.push((point..point, text));
3417 }
3418 }
3419 editor.edit(indent_edits, cx);
3420 });
3421 }
3422
3423 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3424 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3425 original_indent_columns: Vec::new(),
3426 });
3427 self.insert_with_autoindent_mode(text, autoindent, cx);
3428 }
3429
3430 fn insert_with_autoindent_mode(
3431 &mut self,
3432 text: &str,
3433 autoindent_mode: Option<AutoindentMode>,
3434 cx: &mut ViewContext<Self>,
3435 ) {
3436 if self.read_only(cx) {
3437 return;
3438 }
3439
3440 let text: Arc<str> = text.into();
3441 self.transact(cx, |this, cx| {
3442 let old_selections = this.selections.all_adjusted(cx);
3443 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3444 let anchors = {
3445 let snapshot = buffer.read(cx);
3446 old_selections
3447 .iter()
3448 .map(|s| {
3449 let anchor = snapshot.anchor_after(s.head());
3450 s.map(|_| anchor)
3451 })
3452 .collect::<Vec<_>>()
3453 };
3454 buffer.edit(
3455 old_selections
3456 .iter()
3457 .map(|s| (s.start..s.end, text.clone())),
3458 autoindent_mode,
3459 cx,
3460 );
3461 anchors
3462 });
3463
3464 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3465 s.select_anchors(selection_anchors);
3466 })
3467 });
3468 }
3469
3470 fn trigger_completion_on_input(
3471 &mut self,
3472 text: &str,
3473 trigger_in_words: bool,
3474 cx: &mut ViewContext<Self>,
3475 ) {
3476 if self.is_completion_trigger(text, trigger_in_words, cx) {
3477 self.show_completions(&ShowCompletions, cx);
3478 } else {
3479 self.hide_context_menu(cx);
3480 }
3481 }
3482
3483 fn is_completion_trigger(
3484 &self,
3485 text: &str,
3486 trigger_in_words: bool,
3487 cx: &mut ViewContext<Self>,
3488 ) -> bool {
3489 let position = self.selections.newest_anchor().head();
3490 let multibuffer = self.buffer.read(cx);
3491 let Some(buffer) = position
3492 .buffer_id
3493 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3494 else {
3495 return false;
3496 };
3497
3498 if let Some(completion_provider) = &self.completion_provider {
3499 completion_provider.is_completion_trigger(
3500 &buffer,
3501 position.text_anchor,
3502 text,
3503 trigger_in_words,
3504 cx,
3505 )
3506 } else {
3507 false
3508 }
3509 }
3510
3511 /// If any empty selections is touching the start of its innermost containing autoclose
3512 /// region, expand it to select the brackets.
3513 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3514 let selections = self.selections.all::<usize>(cx);
3515 let buffer = self.buffer.read(cx).read(cx);
3516 let new_selections = self
3517 .selections_with_autoclose_regions(selections, &buffer)
3518 .map(|(mut selection, region)| {
3519 if !selection.is_empty() {
3520 return selection;
3521 }
3522
3523 if let Some(region) = region {
3524 let mut range = region.range.to_offset(&buffer);
3525 if selection.start == range.start && range.start >= region.pair.start.len() {
3526 range.start -= region.pair.start.len();
3527 if buffer.contains_str_at(range.start, ®ion.pair.start)
3528 && buffer.contains_str_at(range.end, ®ion.pair.end)
3529 {
3530 range.end += region.pair.end.len();
3531 selection.start = range.start;
3532 selection.end = range.end;
3533
3534 return selection;
3535 }
3536 }
3537 }
3538
3539 let always_treat_brackets_as_autoclosed = buffer
3540 .settings_at(selection.start, cx)
3541 .always_treat_brackets_as_autoclosed;
3542
3543 if !always_treat_brackets_as_autoclosed {
3544 return selection;
3545 }
3546
3547 if let Some(scope) = buffer.language_scope_at(selection.start) {
3548 for (pair, enabled) in scope.brackets() {
3549 if !enabled || !pair.close {
3550 continue;
3551 }
3552
3553 if buffer.contains_str_at(selection.start, &pair.end) {
3554 let pair_start_len = pair.start.len();
3555 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
3556 {
3557 selection.start -= pair_start_len;
3558 selection.end += pair.end.len();
3559
3560 return selection;
3561 }
3562 }
3563 }
3564 }
3565
3566 selection
3567 })
3568 .collect();
3569
3570 drop(buffer);
3571 self.change_selections(None, cx, |selections| selections.select(new_selections));
3572 }
3573
3574 /// Iterate the given selections, and for each one, find the smallest surrounding
3575 /// autoclose region. This uses the ordering of the selections and the autoclose
3576 /// regions to avoid repeated comparisons.
3577 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3578 &'a self,
3579 selections: impl IntoIterator<Item = Selection<D>>,
3580 buffer: &'a MultiBufferSnapshot,
3581 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3582 let mut i = 0;
3583 let mut regions = self.autoclose_regions.as_slice();
3584 selections.into_iter().map(move |selection| {
3585 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3586
3587 let mut enclosing = None;
3588 while let Some(pair_state) = regions.get(i) {
3589 if pair_state.range.end.to_offset(buffer) < range.start {
3590 regions = ®ions[i + 1..];
3591 i = 0;
3592 } else if pair_state.range.start.to_offset(buffer) > range.end {
3593 break;
3594 } else {
3595 if pair_state.selection_id == selection.id {
3596 enclosing = Some(pair_state);
3597 }
3598 i += 1;
3599 }
3600 }
3601
3602 (selection.clone(), enclosing)
3603 })
3604 }
3605
3606 /// Remove any autoclose regions that no longer contain their selection.
3607 fn invalidate_autoclose_regions(
3608 &mut self,
3609 mut selections: &[Selection<Anchor>],
3610 buffer: &MultiBufferSnapshot,
3611 ) {
3612 self.autoclose_regions.retain(|state| {
3613 let mut i = 0;
3614 while let Some(selection) = selections.get(i) {
3615 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3616 selections = &selections[1..];
3617 continue;
3618 }
3619 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3620 break;
3621 }
3622 if selection.id == state.selection_id {
3623 return true;
3624 } else {
3625 i += 1;
3626 }
3627 }
3628 false
3629 });
3630 }
3631
3632 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3633 let offset = position.to_offset(buffer);
3634 let (word_range, kind) = buffer.surrounding_word(offset);
3635 if offset > word_range.start && kind == Some(CharKind::Word) {
3636 Some(
3637 buffer
3638 .text_for_range(word_range.start..offset)
3639 .collect::<String>(),
3640 )
3641 } else {
3642 None
3643 }
3644 }
3645
3646 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3647 self.refresh_inlay_hints(
3648 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3649 cx,
3650 );
3651 }
3652
3653 pub fn inlay_hints_enabled(&self) -> bool {
3654 self.inlay_hint_cache.enabled
3655 }
3656
3657 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3658 if self.project.is_none() || self.mode != EditorMode::Full {
3659 return;
3660 }
3661
3662 let reason_description = reason.description();
3663 let ignore_debounce = matches!(
3664 reason,
3665 InlayHintRefreshReason::SettingsChange(_)
3666 | InlayHintRefreshReason::Toggle(_)
3667 | InlayHintRefreshReason::ExcerptsRemoved(_)
3668 );
3669 let (invalidate_cache, required_languages) = match reason {
3670 InlayHintRefreshReason::Toggle(enabled) => {
3671 self.inlay_hint_cache.enabled = enabled;
3672 if enabled {
3673 (InvalidationStrategy::RefreshRequested, None)
3674 } else {
3675 self.inlay_hint_cache.clear();
3676 self.splice_inlays(
3677 self.visible_inlay_hints(cx)
3678 .iter()
3679 .map(|inlay| inlay.id)
3680 .collect(),
3681 Vec::new(),
3682 cx,
3683 );
3684 return;
3685 }
3686 }
3687 InlayHintRefreshReason::SettingsChange(new_settings) => {
3688 match self.inlay_hint_cache.update_settings(
3689 &self.buffer,
3690 new_settings,
3691 self.visible_inlay_hints(cx),
3692 cx,
3693 ) {
3694 ControlFlow::Break(Some(InlaySplice {
3695 to_remove,
3696 to_insert,
3697 })) => {
3698 self.splice_inlays(to_remove, to_insert, cx);
3699 return;
3700 }
3701 ControlFlow::Break(None) => return,
3702 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3703 }
3704 }
3705 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3706 if let Some(InlaySplice {
3707 to_remove,
3708 to_insert,
3709 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3710 {
3711 self.splice_inlays(to_remove, to_insert, cx);
3712 }
3713 return;
3714 }
3715 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3716 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3717 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3718 }
3719 InlayHintRefreshReason::RefreshRequested => {
3720 (InvalidationStrategy::RefreshRequested, None)
3721 }
3722 };
3723
3724 if let Some(InlaySplice {
3725 to_remove,
3726 to_insert,
3727 }) = self.inlay_hint_cache.spawn_hint_refresh(
3728 reason_description,
3729 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3730 invalidate_cache,
3731 ignore_debounce,
3732 cx,
3733 ) {
3734 self.splice_inlays(to_remove, to_insert, cx);
3735 }
3736 }
3737
3738 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
3739 self.display_map
3740 .read(cx)
3741 .current_inlays()
3742 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3743 .cloned()
3744 .collect()
3745 }
3746
3747 pub fn excerpts_for_inlay_hints_query(
3748 &self,
3749 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3750 cx: &mut ViewContext<Editor>,
3751 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3752 let Some(project) = self.project.as_ref() else {
3753 return HashMap::default();
3754 };
3755 let project = project.read(cx);
3756 let multi_buffer = self.buffer().read(cx);
3757 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3758 let multi_buffer_visible_start = self
3759 .scroll_manager
3760 .anchor()
3761 .anchor
3762 .to_point(&multi_buffer_snapshot);
3763 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3764 multi_buffer_visible_start
3765 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3766 Bias::Left,
3767 );
3768 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3769 multi_buffer
3770 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
3771 .into_iter()
3772 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
3773 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
3774 let buffer = buffer_handle.read(cx);
3775 let buffer_file = project::File::from_dyn(buffer.file())?;
3776 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3777 let worktree_entry = buffer_worktree
3778 .read(cx)
3779 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3780 if worktree_entry.is_ignored {
3781 return None;
3782 }
3783
3784 let language = buffer.language()?;
3785 if let Some(restrict_to_languages) = restrict_to_languages {
3786 if !restrict_to_languages.contains(language) {
3787 return None;
3788 }
3789 }
3790 Some((
3791 excerpt_id,
3792 (
3793 buffer_handle,
3794 buffer.version().clone(),
3795 excerpt_visible_range,
3796 ),
3797 ))
3798 })
3799 .collect()
3800 }
3801
3802 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3803 TextLayoutDetails {
3804 text_system: cx.text_system().clone(),
3805 editor_style: self.style.clone().unwrap(),
3806 rem_size: cx.rem_size(),
3807 scroll_anchor: self.scroll_manager.anchor(),
3808 visible_rows: self.visible_line_count(),
3809 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3810 }
3811 }
3812
3813 fn splice_inlays(
3814 &self,
3815 to_remove: Vec<InlayId>,
3816 to_insert: Vec<Inlay>,
3817 cx: &mut ViewContext<Self>,
3818 ) {
3819 self.display_map.update(cx, |display_map, cx| {
3820 display_map.splice_inlays(to_remove, to_insert, cx);
3821 });
3822 cx.notify();
3823 }
3824
3825 fn trigger_on_type_formatting(
3826 &self,
3827 input: String,
3828 cx: &mut ViewContext<Self>,
3829 ) -> Option<Task<Result<()>>> {
3830 if input.len() != 1 {
3831 return None;
3832 }
3833
3834 let project = self.project.as_ref()?;
3835 let position = self.selections.newest_anchor().head();
3836 let (buffer, buffer_position) = self
3837 .buffer
3838 .read(cx)
3839 .text_anchor_for_position(position, cx)?;
3840
3841 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3842 // hence we do LSP request & edit on host side only — add formats to host's history.
3843 let push_to_lsp_host_history = true;
3844 // If this is not the host, append its history with new edits.
3845 let push_to_client_history = project.read(cx).is_remote();
3846
3847 let on_type_formatting = project.update(cx, |project, cx| {
3848 project.on_type_format(
3849 buffer.clone(),
3850 buffer_position,
3851 input,
3852 push_to_lsp_host_history,
3853 cx,
3854 )
3855 });
3856 Some(cx.spawn(|editor, mut cx| async move {
3857 if let Some(transaction) = on_type_formatting.await? {
3858 if push_to_client_history {
3859 buffer
3860 .update(&mut cx, |buffer, _| {
3861 buffer.push_transaction(transaction, Instant::now());
3862 })
3863 .ok();
3864 }
3865 editor.update(&mut cx, |editor, cx| {
3866 editor.refresh_document_highlights(cx);
3867 })?;
3868 }
3869 Ok(())
3870 }))
3871 }
3872
3873 pub fn show_completions(&mut self, _: &ShowCompletions, cx: &mut ViewContext<Self>) {
3874 if self.pending_rename.is_some() {
3875 return;
3876 }
3877
3878 let Some(provider) = self.completion_provider.as_ref() else {
3879 return;
3880 };
3881
3882 let position = self.selections.newest_anchor().head();
3883 let (buffer, buffer_position) =
3884 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3885 output
3886 } else {
3887 return;
3888 };
3889
3890 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3891 let completions = provider.completions(&buffer, buffer_position, cx);
3892
3893 let id = post_inc(&mut self.next_completion_id);
3894 let task = cx.spawn(|this, mut cx| {
3895 async move {
3896 this.update(&mut cx, |this, _| {
3897 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3898 })?;
3899 let completions = completions.await.log_err();
3900 let menu = if let Some(completions) = completions {
3901 let mut menu = CompletionsMenu {
3902 id,
3903 initial_position: position,
3904 match_candidates: completions
3905 .iter()
3906 .enumerate()
3907 .map(|(id, completion)| {
3908 StringMatchCandidate::new(
3909 id,
3910 completion.label.text[completion.label.filter_range.clone()]
3911 .into(),
3912 )
3913 })
3914 .collect(),
3915 buffer: buffer.clone(),
3916 completions: Arc::new(RwLock::new(completions.into())),
3917 matches: Vec::new().into(),
3918 selected_item: 0,
3919 scroll_handle: UniformListScrollHandle::new(),
3920 selected_completion_documentation_resolve_debounce: Arc::new(Mutex::new(
3921 DebouncedDelay::new(),
3922 )),
3923 };
3924 menu.filter(query.as_deref(), cx.background_executor().clone())
3925 .await;
3926
3927 if menu.matches.is_empty() {
3928 None
3929 } else {
3930 this.update(&mut cx, |editor, cx| {
3931 let completions = menu.completions.clone();
3932 let matches = menu.matches.clone();
3933
3934 let delay_ms = EditorSettings::get_global(cx)
3935 .completion_documentation_secondary_query_debounce;
3936 let delay = Duration::from_millis(delay_ms);
3937 editor
3938 .completion_documentation_pre_resolve_debounce
3939 .fire_new(delay, cx, |editor, cx| {
3940 CompletionsMenu::pre_resolve_completion_documentation(
3941 buffer,
3942 completions,
3943 matches,
3944 editor,
3945 cx,
3946 )
3947 });
3948 })
3949 .ok();
3950 Some(menu)
3951 }
3952 } else {
3953 None
3954 };
3955
3956 this.update(&mut cx, |this, cx| {
3957 let mut context_menu = this.context_menu.write();
3958 match context_menu.as_ref() {
3959 None => {}
3960
3961 Some(ContextMenu::Completions(prev_menu)) => {
3962 if prev_menu.id > id {
3963 return;
3964 }
3965 }
3966
3967 _ => return,
3968 }
3969
3970 if this.focus_handle.is_focused(cx) && menu.is_some() {
3971 let menu = menu.unwrap();
3972 *context_menu = Some(ContextMenu::Completions(menu));
3973 drop(context_menu);
3974 this.discard_inline_completion(false, cx);
3975 cx.notify();
3976 } else if this.completion_tasks.len() <= 1 {
3977 // If there are no more completion tasks and the last menu was
3978 // empty, we should hide it. If it was already hidden, we should
3979 // also show the copilot completion when available.
3980 drop(context_menu);
3981 if this.hide_context_menu(cx).is_none() {
3982 this.update_visible_inline_completion(cx);
3983 }
3984 }
3985 })?;
3986
3987 Ok::<_, anyhow::Error>(())
3988 }
3989 .log_err()
3990 });
3991
3992 self.completion_tasks.push((id, task));
3993 }
3994
3995 pub fn confirm_completion(
3996 &mut self,
3997 action: &ConfirmCompletion,
3998 cx: &mut ViewContext<Self>,
3999 ) -> Option<Task<Result<()>>> {
4000 use language::ToOffset as _;
4001
4002 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4003 menu
4004 } else {
4005 return None;
4006 };
4007
4008 let mat = completions_menu
4009 .matches
4010 .get(action.item_ix.unwrap_or(completions_menu.selected_item))?;
4011 let buffer_handle = completions_menu.buffer;
4012 let completions = completions_menu.completions.read();
4013 let completion = completions.get(mat.candidate_id)?;
4014 cx.stop_propagation();
4015
4016 let snippet;
4017 let text;
4018
4019 if completion.is_snippet() {
4020 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4021 text = snippet.as_ref().unwrap().text.clone();
4022 } else {
4023 snippet = None;
4024 text = completion.new_text.clone();
4025 };
4026 let selections = self.selections.all::<usize>(cx);
4027 let buffer = buffer_handle.read(cx);
4028 let old_range = completion.old_range.to_offset(buffer);
4029 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4030
4031 let newest_selection = self.selections.newest_anchor();
4032 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4033 return None;
4034 }
4035
4036 let lookbehind = newest_selection
4037 .start
4038 .text_anchor
4039 .to_offset(buffer)
4040 .saturating_sub(old_range.start);
4041 let lookahead = old_range
4042 .end
4043 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4044 let mut common_prefix_len = old_text
4045 .bytes()
4046 .zip(text.bytes())
4047 .take_while(|(a, b)| a == b)
4048 .count();
4049
4050 let snapshot = self.buffer.read(cx).snapshot(cx);
4051 let mut range_to_replace: Option<Range<isize>> = None;
4052 let mut ranges = Vec::new();
4053 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4054 for selection in &selections {
4055 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4056 let start = selection.start.saturating_sub(lookbehind);
4057 let end = selection.end + lookahead;
4058 if selection.id == newest_selection.id {
4059 range_to_replace = Some(
4060 ((start + common_prefix_len) as isize - selection.start as isize)
4061 ..(end as isize - selection.start as isize),
4062 );
4063 }
4064 ranges.push(start + common_prefix_len..end);
4065 } else {
4066 common_prefix_len = 0;
4067 ranges.clear();
4068 ranges.extend(selections.iter().map(|s| {
4069 if s.id == newest_selection.id {
4070 range_to_replace = Some(
4071 old_range.start.to_offset_utf16(&snapshot).0 as isize
4072 - selection.start as isize
4073 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4074 - selection.start as isize,
4075 );
4076 old_range.clone()
4077 } else {
4078 s.start..s.end
4079 }
4080 }));
4081 break;
4082 }
4083 if !self.linked_edit_ranges.is_empty() {
4084 let start_anchor = snapshot.anchor_before(selection.head());
4085 let end_anchor = snapshot.anchor_after(selection.tail());
4086 if let Some(ranges) = self
4087 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4088 {
4089 for (buffer, edits) in ranges {
4090 linked_edits.entry(buffer.clone()).or_default().extend(
4091 edits
4092 .into_iter()
4093 .map(|range| (range, text[common_prefix_len..].to_owned())),
4094 );
4095 }
4096 }
4097 }
4098 }
4099 let text = &text[common_prefix_len..];
4100
4101 cx.emit(EditorEvent::InputHandled {
4102 utf16_range_to_replace: range_to_replace,
4103 text: text.into(),
4104 });
4105
4106 self.transact(cx, |this, cx| {
4107 if let Some(mut snippet) = snippet {
4108 snippet.text = text.to_string();
4109 for tabstop in snippet.tabstops.iter_mut().flatten() {
4110 tabstop.start -= common_prefix_len as isize;
4111 tabstop.end -= common_prefix_len as isize;
4112 }
4113
4114 this.insert_snippet(&ranges, snippet, cx).log_err();
4115 } else {
4116 this.buffer.update(cx, |buffer, cx| {
4117 buffer.edit(
4118 ranges.iter().map(|range| (range.clone(), text)),
4119 this.autoindent_mode.clone(),
4120 cx,
4121 );
4122 });
4123 }
4124 for (buffer, edits) in linked_edits {
4125 buffer.update(cx, |buffer, cx| {
4126 let snapshot = buffer.snapshot();
4127 let edits = edits
4128 .into_iter()
4129 .map(|(range, text)| {
4130 use text::ToPoint as TP;
4131 let end_point = TP::to_point(&range.end, &snapshot);
4132 let start_point = TP::to_point(&range.start, &snapshot);
4133 (start_point..end_point, text)
4134 })
4135 .sorted_by_key(|(range, _)| range.start)
4136 .collect::<Vec<_>>();
4137 buffer.edit(edits, None, cx);
4138 })
4139 }
4140
4141 this.refresh_inline_completion(true, cx);
4142 });
4143
4144 if let Some(confirm) = completion.confirm.as_ref() {
4145 (confirm)(cx);
4146 }
4147
4148 if completion.show_new_completions_on_confirm {
4149 self.show_completions(&ShowCompletions, cx);
4150 }
4151
4152 let provider = self.completion_provider.as_ref()?;
4153 let apply_edits = provider.apply_additional_edits_for_completion(
4154 buffer_handle,
4155 completion.clone(),
4156 true,
4157 cx,
4158 );
4159 Some(cx.foreground_executor().spawn(async move {
4160 apply_edits.await?;
4161 Ok(())
4162 }))
4163 }
4164
4165 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4166 let mut context_menu = self.context_menu.write();
4167 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4168 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4169 // Toggle if we're selecting the same one
4170 *context_menu = None;
4171 cx.notify();
4172 return;
4173 } else {
4174 // Otherwise, clear it and start a new one
4175 *context_menu = None;
4176 cx.notify();
4177 }
4178 }
4179 drop(context_menu);
4180 let snapshot = self.snapshot(cx);
4181 let deployed_from_indicator = action.deployed_from_indicator;
4182 let mut task = self.code_actions_task.take();
4183 let action = action.clone();
4184 cx.spawn(|editor, mut cx| async move {
4185 while let Some(prev_task) = task {
4186 prev_task.await;
4187 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4188 }
4189
4190 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4191 if editor.focus_handle.is_focused(cx) {
4192 let multibuffer_point = action
4193 .deployed_from_indicator
4194 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4195 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4196 let (buffer, buffer_row) = snapshot
4197 .buffer_snapshot
4198 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4199 .and_then(|(buffer_snapshot, range)| {
4200 editor
4201 .buffer
4202 .read(cx)
4203 .buffer(buffer_snapshot.remote_id())
4204 .map(|buffer| (buffer, range.start.row))
4205 })?;
4206 let (_, code_actions) = editor
4207 .available_code_actions
4208 .clone()
4209 .and_then(|(location, code_actions)| {
4210 let snapshot = location.buffer.read(cx).snapshot();
4211 let point_range = location.range.to_point(&snapshot);
4212 let point_range = point_range.start.row..=point_range.end.row;
4213 if point_range.contains(&buffer_row) {
4214 Some((location, code_actions))
4215 } else {
4216 None
4217 }
4218 })
4219 .unzip();
4220 let buffer_id = buffer.read(cx).remote_id();
4221 let tasks = editor
4222 .tasks
4223 .get(&(buffer_id, buffer_row))
4224 .map(|t| Arc::new(t.to_owned()));
4225 if tasks.is_none() && code_actions.is_none() {
4226 return None;
4227 }
4228
4229 editor.completion_tasks.clear();
4230 editor.discard_inline_completion(false, cx);
4231 let task_context =
4232 tasks
4233 .as_ref()
4234 .zip(editor.project.clone())
4235 .map(|(tasks, project)| {
4236 let position = Point::new(buffer_row, tasks.column);
4237 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4238 let location = Location {
4239 buffer: buffer.clone(),
4240 range: range_start..range_start,
4241 };
4242 // Fill in the environmental variables from the tree-sitter captures
4243 let mut captured_task_variables = TaskVariables::default();
4244 for (capture_name, value) in tasks.extra_variables.clone() {
4245 captured_task_variables.insert(
4246 task::VariableName::Custom(capture_name.into()),
4247 value.clone(),
4248 );
4249 }
4250 project.update(cx, |project, cx| {
4251 project.task_context_for_location(
4252 captured_task_variables,
4253 location,
4254 cx,
4255 )
4256 })
4257 });
4258
4259 Some(cx.spawn(|editor, mut cx| async move {
4260 let task_context = match task_context {
4261 Some(task_context) => task_context.await,
4262 None => None,
4263 };
4264 let resolved_tasks =
4265 tasks.zip(task_context).map(|(tasks, task_context)| {
4266 Arc::new(ResolvedTasks {
4267 templates: tasks
4268 .templates
4269 .iter()
4270 .filter_map(|(kind, template)| {
4271 template
4272 .resolve_task(&kind.to_id_base(), &task_context)
4273 .map(|task| (kind.clone(), task))
4274 })
4275 .collect(),
4276 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4277 multibuffer_point.row,
4278 tasks.column,
4279 )),
4280 })
4281 });
4282 let spawn_straight_away = resolved_tasks
4283 .as_ref()
4284 .map_or(false, |tasks| tasks.templates.len() == 1)
4285 && code_actions
4286 .as_ref()
4287 .map_or(true, |actions| actions.is_empty());
4288 if let Some(task) = editor
4289 .update(&mut cx, |editor, cx| {
4290 *editor.context_menu.write() =
4291 Some(ContextMenu::CodeActions(CodeActionsMenu {
4292 buffer,
4293 actions: CodeActionContents {
4294 tasks: resolved_tasks,
4295 actions: code_actions,
4296 },
4297 selected_item: Default::default(),
4298 scroll_handle: UniformListScrollHandle::default(),
4299 deployed_from_indicator,
4300 }));
4301 if spawn_straight_away {
4302 if let Some(task) = editor.confirm_code_action(
4303 &ConfirmCodeAction { item_ix: Some(0) },
4304 cx,
4305 ) {
4306 cx.notify();
4307 return task;
4308 }
4309 }
4310 cx.notify();
4311 Task::ready(Ok(()))
4312 })
4313 .ok()
4314 {
4315 task.await
4316 } else {
4317 Ok(())
4318 }
4319 }))
4320 } else {
4321 Some(Task::ready(Ok(())))
4322 }
4323 })?;
4324 if let Some(task) = spawned_test_task {
4325 task.await?;
4326 }
4327
4328 Ok::<_, anyhow::Error>(())
4329 })
4330 .detach_and_log_err(cx);
4331 }
4332
4333 pub fn confirm_code_action(
4334 &mut self,
4335 action: &ConfirmCodeAction,
4336 cx: &mut ViewContext<Self>,
4337 ) -> Option<Task<Result<()>>> {
4338 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4339 menu
4340 } else {
4341 return None;
4342 };
4343 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4344 let action = actions_menu.actions.get(action_ix)?;
4345 let title = action.label();
4346 let buffer = actions_menu.buffer;
4347 let workspace = self.workspace()?;
4348
4349 match action {
4350 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4351 workspace.update(cx, |workspace, cx| {
4352 workspace::tasks::schedule_resolved_task(
4353 workspace,
4354 task_source_kind,
4355 resolved_task,
4356 false,
4357 cx,
4358 );
4359
4360 Some(Task::ready(Ok(())))
4361 })
4362 }
4363 CodeActionsItem::CodeAction(action) => {
4364 let apply_code_actions = workspace
4365 .read(cx)
4366 .project()
4367 .clone()
4368 .update(cx, |project, cx| {
4369 project.apply_code_action(buffer, action, true, cx)
4370 });
4371 let workspace = workspace.downgrade();
4372 Some(cx.spawn(|editor, cx| async move {
4373 let project_transaction = apply_code_actions.await?;
4374 Self::open_project_transaction(
4375 &editor,
4376 workspace,
4377 project_transaction,
4378 title,
4379 cx,
4380 )
4381 .await
4382 }))
4383 }
4384 }
4385 }
4386
4387 pub async fn open_project_transaction(
4388 this: &WeakView<Editor>,
4389 workspace: WeakView<Workspace>,
4390 transaction: ProjectTransaction,
4391 title: String,
4392 mut cx: AsyncWindowContext,
4393 ) -> Result<()> {
4394 let replica_id = this.update(&mut cx, |this, cx| this.replica_id(cx))?;
4395
4396 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4397 cx.update(|cx| {
4398 entries.sort_unstable_by_key(|(buffer, _)| {
4399 buffer.read(cx).file().map(|f| f.path().clone())
4400 });
4401 })?;
4402
4403 // If the project transaction's edits are all contained within this editor, then
4404 // avoid opening a new editor to display them.
4405
4406 if let Some((buffer, transaction)) = entries.first() {
4407 if entries.len() == 1 {
4408 let excerpt = this.update(&mut cx, |editor, cx| {
4409 editor
4410 .buffer()
4411 .read(cx)
4412 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4413 })?;
4414 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4415 if excerpted_buffer == *buffer {
4416 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4417 let excerpt_range = excerpt_range.to_offset(buffer);
4418 buffer
4419 .edited_ranges_for_transaction::<usize>(transaction)
4420 .all(|range| {
4421 excerpt_range.start <= range.start
4422 && excerpt_range.end >= range.end
4423 })
4424 })?;
4425
4426 if all_edits_within_excerpt {
4427 return Ok(());
4428 }
4429 }
4430 }
4431 }
4432 } else {
4433 return Ok(());
4434 }
4435
4436 let mut ranges_to_highlight = Vec::new();
4437 let excerpt_buffer = cx.new_model(|cx| {
4438 let mut multibuffer =
4439 MultiBuffer::new(replica_id, Capability::ReadWrite).with_title(title);
4440 for (buffer_handle, transaction) in &entries {
4441 let buffer = buffer_handle.read(cx);
4442 ranges_to_highlight.extend(
4443 multibuffer.push_excerpts_with_context_lines(
4444 buffer_handle.clone(),
4445 buffer
4446 .edited_ranges_for_transaction::<usize>(transaction)
4447 .collect(),
4448 DEFAULT_MULTIBUFFER_CONTEXT,
4449 cx,
4450 ),
4451 );
4452 }
4453 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4454 multibuffer
4455 })?;
4456
4457 workspace.update(&mut cx, |workspace, cx| {
4458 let project = workspace.project().clone();
4459 let editor =
4460 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4461 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, cx);
4462 editor.update(cx, |editor, cx| {
4463 editor.highlight_background::<Self>(
4464 &ranges_to_highlight,
4465 |theme| theme.editor_highlighted_line_background,
4466 cx,
4467 );
4468 });
4469 })?;
4470
4471 Ok(())
4472 }
4473
4474 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4475 let project = self.project.clone()?;
4476 let buffer = self.buffer.read(cx);
4477 let newest_selection = self.selections.newest_anchor().clone();
4478 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4479 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4480 if start_buffer != end_buffer {
4481 return None;
4482 }
4483
4484 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4485 cx.background_executor()
4486 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4487 .await;
4488
4489 let actions = if let Ok(code_actions) = project.update(&mut cx, |project, cx| {
4490 project.code_actions(&start_buffer, start..end, cx)
4491 }) {
4492 code_actions.await
4493 } else {
4494 Vec::new()
4495 };
4496
4497 this.update(&mut cx, |this, cx| {
4498 this.available_code_actions = if actions.is_empty() {
4499 None
4500 } else {
4501 Some((
4502 Location {
4503 buffer: start_buffer,
4504 range: start..end,
4505 },
4506 actions.into(),
4507 ))
4508 };
4509 cx.notify();
4510 })
4511 .log_err();
4512 }));
4513 None
4514 }
4515
4516 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4517 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4518 self.show_git_blame_inline = false;
4519
4520 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4521 cx.background_executor().timer(delay).await;
4522
4523 this.update(&mut cx, |this, cx| {
4524 this.show_git_blame_inline = true;
4525 cx.notify();
4526 })
4527 .log_err();
4528 }));
4529 }
4530 }
4531
4532 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4533 if self.pending_rename.is_some() {
4534 return None;
4535 }
4536
4537 let project = self.project.clone()?;
4538 let buffer = self.buffer.read(cx);
4539 let newest_selection = self.selections.newest_anchor().clone();
4540 let cursor_position = newest_selection.head();
4541 let (cursor_buffer, cursor_buffer_position) =
4542 buffer.text_anchor_for_position(cursor_position, cx)?;
4543 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4544 if cursor_buffer != tail_buffer {
4545 return None;
4546 }
4547
4548 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4549 cx.background_executor()
4550 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
4551 .await;
4552
4553 let highlights = if let Some(highlights) = project
4554 .update(&mut cx, |project, cx| {
4555 project.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4556 })
4557 .log_err()
4558 {
4559 highlights.await.log_err()
4560 } else {
4561 None
4562 };
4563
4564 if let Some(highlights) = highlights {
4565 this.update(&mut cx, |this, cx| {
4566 if this.pending_rename.is_some() {
4567 return;
4568 }
4569
4570 let buffer_id = cursor_position.buffer_id;
4571 let buffer = this.buffer.read(cx);
4572 if !buffer
4573 .text_anchor_for_position(cursor_position, cx)
4574 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4575 {
4576 return;
4577 }
4578
4579 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4580 let mut write_ranges = Vec::new();
4581 let mut read_ranges = Vec::new();
4582 for highlight in highlights {
4583 for (excerpt_id, excerpt_range) in
4584 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4585 {
4586 let start = highlight
4587 .range
4588 .start
4589 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4590 let end = highlight
4591 .range
4592 .end
4593 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4594 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4595 continue;
4596 }
4597
4598 let range = Anchor {
4599 buffer_id,
4600 excerpt_id: excerpt_id,
4601 text_anchor: start,
4602 }..Anchor {
4603 buffer_id,
4604 excerpt_id,
4605 text_anchor: end,
4606 };
4607 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4608 write_ranges.push(range);
4609 } else {
4610 read_ranges.push(range);
4611 }
4612 }
4613 }
4614
4615 this.highlight_background::<DocumentHighlightRead>(
4616 &read_ranges,
4617 |theme| theme.editor_document_highlight_read_background,
4618 cx,
4619 );
4620 this.highlight_background::<DocumentHighlightWrite>(
4621 &write_ranges,
4622 |theme| theme.editor_document_highlight_write_background,
4623 cx,
4624 );
4625 cx.notify();
4626 })
4627 .log_err();
4628 }
4629 }));
4630 None
4631 }
4632
4633 fn refresh_inline_completion(
4634 &mut self,
4635 debounce: bool,
4636 cx: &mut ViewContext<Self>,
4637 ) -> Option<()> {
4638 let provider = self.inline_completion_provider()?;
4639 let cursor = self.selections.newest_anchor().head();
4640 let (buffer, cursor_buffer_position) =
4641 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4642 if !self.show_inline_completions
4643 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4644 {
4645 self.discard_inline_completion(false, cx);
4646 return None;
4647 }
4648
4649 self.update_visible_inline_completion(cx);
4650 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4651 Some(())
4652 }
4653
4654 fn cycle_inline_completion(
4655 &mut self,
4656 direction: Direction,
4657 cx: &mut ViewContext<Self>,
4658 ) -> Option<()> {
4659 let provider = self.inline_completion_provider()?;
4660 let cursor = self.selections.newest_anchor().head();
4661 let (buffer, cursor_buffer_position) =
4662 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4663 if !self.show_inline_completions
4664 || !provider.is_enabled(&buffer, cursor_buffer_position, cx)
4665 {
4666 return None;
4667 }
4668
4669 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4670 self.update_visible_inline_completion(cx);
4671
4672 Some(())
4673 }
4674
4675 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4676 if !self.has_active_inline_completion(cx) {
4677 self.refresh_inline_completion(false, cx);
4678 return;
4679 }
4680
4681 self.update_visible_inline_completion(cx);
4682 }
4683
4684 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4685 self.show_cursor_names(cx);
4686 }
4687
4688 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4689 self.show_cursor_names = true;
4690 cx.notify();
4691 cx.spawn(|this, mut cx| async move {
4692 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4693 this.update(&mut cx, |this, cx| {
4694 this.show_cursor_names = false;
4695 cx.notify()
4696 })
4697 .ok()
4698 })
4699 .detach();
4700 }
4701
4702 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4703 if self.has_active_inline_completion(cx) {
4704 self.cycle_inline_completion(Direction::Next, cx);
4705 } else {
4706 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4707 if is_copilot_disabled {
4708 cx.propagate();
4709 }
4710 }
4711 }
4712
4713 pub fn previous_inline_completion(
4714 &mut self,
4715 _: &PreviousInlineCompletion,
4716 cx: &mut ViewContext<Self>,
4717 ) {
4718 if self.has_active_inline_completion(cx) {
4719 self.cycle_inline_completion(Direction::Prev, cx);
4720 } else {
4721 let is_copilot_disabled = self.refresh_inline_completion(false, cx).is_none();
4722 if is_copilot_disabled {
4723 cx.propagate();
4724 }
4725 }
4726 }
4727
4728 pub fn accept_inline_completion(
4729 &mut self,
4730 _: &AcceptInlineCompletion,
4731 cx: &mut ViewContext<Self>,
4732 ) {
4733 let Some(completion) = self.take_active_inline_completion(cx) else {
4734 return;
4735 };
4736 if let Some(provider) = self.inline_completion_provider() {
4737 provider.accept(cx);
4738 }
4739
4740 cx.emit(EditorEvent::InputHandled {
4741 utf16_range_to_replace: None,
4742 text: completion.text.to_string().into(),
4743 });
4744 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
4745 self.refresh_inline_completion(true, cx);
4746 cx.notify();
4747 }
4748
4749 pub fn accept_partial_inline_completion(
4750 &mut self,
4751 _: &AcceptPartialInlineCompletion,
4752 cx: &mut ViewContext<Self>,
4753 ) {
4754 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
4755 if let Some(completion) = self.take_active_inline_completion(cx) {
4756 let mut partial_completion = completion
4757 .text
4758 .chars()
4759 .by_ref()
4760 .take_while(|c| c.is_alphabetic())
4761 .collect::<String>();
4762 if partial_completion.is_empty() {
4763 partial_completion = completion
4764 .text
4765 .chars()
4766 .by_ref()
4767 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4768 .collect::<String>();
4769 }
4770
4771 cx.emit(EditorEvent::InputHandled {
4772 utf16_range_to_replace: None,
4773 text: partial_completion.clone().into(),
4774 });
4775 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4776 self.refresh_inline_completion(true, cx);
4777 cx.notify();
4778 }
4779 }
4780 }
4781
4782 fn discard_inline_completion(
4783 &mut self,
4784 should_report_inline_completion_event: bool,
4785 cx: &mut ViewContext<Self>,
4786 ) -> bool {
4787 if let Some(provider) = self.inline_completion_provider() {
4788 provider.discard(should_report_inline_completion_event, cx);
4789 }
4790
4791 self.take_active_inline_completion(cx).is_some()
4792 }
4793
4794 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
4795 if let Some(completion) = self.active_inline_completion.as_ref() {
4796 let buffer = self.buffer.read(cx).read(cx);
4797 completion.position.is_valid(&buffer)
4798 } else {
4799 false
4800 }
4801 }
4802
4803 fn take_active_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<Inlay> {
4804 let completion = self.active_inline_completion.take()?;
4805 self.display_map.update(cx, |map, cx| {
4806 map.splice_inlays(vec![completion.id], Default::default(), cx);
4807 });
4808 let buffer = self.buffer.read(cx).read(cx);
4809
4810 if completion.position.is_valid(&buffer) {
4811 Some(completion)
4812 } else {
4813 None
4814 }
4815 }
4816
4817 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
4818 let selection = self.selections.newest_anchor();
4819 let cursor = selection.head();
4820
4821 if self.context_menu.read().is_none()
4822 && self.completion_tasks.is_empty()
4823 && selection.start == selection.end
4824 {
4825 if let Some(provider) = self.inline_completion_provider() {
4826 if let Some((buffer, cursor_buffer_position)) =
4827 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
4828 {
4829 if let Some(text) =
4830 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
4831 {
4832 let text = Rope::from(text);
4833 let mut to_remove = Vec::new();
4834 if let Some(completion) = self.active_inline_completion.take() {
4835 to_remove.push(completion.id);
4836 }
4837
4838 let completion_inlay =
4839 Inlay::suggestion(post_inc(&mut self.next_inlay_id), cursor, text);
4840 self.active_inline_completion = Some(completion_inlay.clone());
4841 self.display_map.update(cx, move |map, cx| {
4842 map.splice_inlays(to_remove, vec![completion_inlay], cx)
4843 });
4844 cx.notify();
4845 return;
4846 }
4847 }
4848 }
4849 }
4850
4851 self.discard_inline_completion(false, cx);
4852 }
4853
4854 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4855 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4856 }
4857
4858 fn render_code_actions_indicator(
4859 &self,
4860 _style: &EditorStyle,
4861 row: DisplayRow,
4862 is_active: bool,
4863 cx: &mut ViewContext<Self>,
4864 ) -> Option<IconButton> {
4865 if self.available_code_actions.is_some() {
4866 Some(
4867 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4868 .icon_size(IconSize::XSmall)
4869 .size(ui::ButtonSize::None)
4870 .icon_color(Color::Muted)
4871 .selected(is_active)
4872 .on_click(cx.listener(move |editor, _e, cx| {
4873 editor.focus(cx);
4874 editor.toggle_code_actions(
4875 &ToggleCodeActions {
4876 deployed_from_indicator: Some(row),
4877 },
4878 cx,
4879 );
4880 })),
4881 )
4882 } else {
4883 None
4884 }
4885 }
4886
4887 fn clear_tasks(&mut self) {
4888 self.tasks.clear()
4889 }
4890
4891 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4892 if let Some(_) = self.tasks.insert(key, value) {
4893 // This case should hopefully be rare, but just in case...
4894 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4895 }
4896 }
4897
4898 fn render_run_indicator(
4899 &self,
4900 _style: &EditorStyle,
4901 is_active: bool,
4902 row: DisplayRow,
4903 cx: &mut ViewContext<Self>,
4904 ) -> IconButton {
4905 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
4906 .icon_size(IconSize::XSmall)
4907 .size(ui::ButtonSize::None)
4908 .icon_color(Color::Muted)
4909 .selected(is_active)
4910 .on_click(cx.listener(move |editor, _e, cx| {
4911 editor.focus(cx);
4912 editor.toggle_code_actions(
4913 &ToggleCodeActions {
4914 deployed_from_indicator: Some(row),
4915 },
4916 cx,
4917 );
4918 }))
4919 }
4920
4921 pub fn context_menu_visible(&self) -> bool {
4922 self.context_menu
4923 .read()
4924 .as_ref()
4925 .map_or(false, |menu| menu.visible())
4926 }
4927
4928 fn render_context_menu(
4929 &self,
4930 cursor_position: DisplayPoint,
4931 style: &EditorStyle,
4932 max_height: Pixels,
4933 cx: &mut ViewContext<Editor>,
4934 ) -> Option<(ContextMenuOrigin, AnyElement)> {
4935 self.context_menu.read().as_ref().map(|menu| {
4936 menu.render(
4937 cursor_position,
4938 style,
4939 max_height,
4940 self.workspace.as_ref().map(|(w, _)| w.clone()),
4941 cx,
4942 )
4943 })
4944 }
4945
4946 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
4947 cx.notify();
4948 self.completion_tasks.clear();
4949 let context_menu = self.context_menu.write().take();
4950 if context_menu.is_some() {
4951 self.update_visible_inline_completion(cx);
4952 }
4953 context_menu
4954 }
4955
4956 pub fn insert_snippet(
4957 &mut self,
4958 insertion_ranges: &[Range<usize>],
4959 snippet: Snippet,
4960 cx: &mut ViewContext<Self>,
4961 ) -> Result<()> {
4962 struct Tabstop<T> {
4963 is_end_tabstop: bool,
4964 ranges: Vec<Range<T>>,
4965 }
4966
4967 let tabstops = self.buffer.update(cx, |buffer, cx| {
4968 let snippet_text: Arc<str> = snippet.text.clone().into();
4969 buffer.edit(
4970 insertion_ranges
4971 .iter()
4972 .cloned()
4973 .map(|range| (range, snippet_text.clone())),
4974 Some(AutoindentMode::EachLine),
4975 cx,
4976 );
4977
4978 let snapshot = &*buffer.read(cx);
4979 let snippet = &snippet;
4980 snippet
4981 .tabstops
4982 .iter()
4983 .map(|tabstop| {
4984 let is_end_tabstop = tabstop.first().map_or(false, |tabstop| {
4985 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
4986 });
4987 let mut tabstop_ranges = tabstop
4988 .iter()
4989 .flat_map(|tabstop_range| {
4990 let mut delta = 0_isize;
4991 insertion_ranges.iter().map(move |insertion_range| {
4992 let insertion_start = insertion_range.start as isize + delta;
4993 delta +=
4994 snippet.text.len() as isize - insertion_range.len() as isize;
4995
4996 let start = ((insertion_start + tabstop_range.start) as usize)
4997 .min(snapshot.len());
4998 let end = ((insertion_start + tabstop_range.end) as usize)
4999 .min(snapshot.len());
5000 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5001 })
5002 })
5003 .collect::<Vec<_>>();
5004 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5005
5006 Tabstop {
5007 is_end_tabstop,
5008 ranges: tabstop_ranges,
5009 }
5010 })
5011 .collect::<Vec<_>>()
5012 });
5013
5014 if let Some(tabstop) = tabstops.first() {
5015 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5016 s.select_ranges(tabstop.ranges.iter().cloned());
5017 });
5018
5019 // If we're already at the last tabstop and it's at the end of the snippet,
5020 // we're done, we don't need to keep the state around.
5021 if !tabstop.is_end_tabstop {
5022 let ranges = tabstops
5023 .into_iter()
5024 .map(|tabstop| tabstop.ranges)
5025 .collect::<Vec<_>>();
5026 self.snippet_stack.push(SnippetState {
5027 active_index: 0,
5028 ranges,
5029 });
5030 }
5031
5032 // Check whether the just-entered snippet ends with an auto-closable bracket.
5033 if self.autoclose_regions.is_empty() {
5034 let snapshot = self.buffer.read(cx).snapshot(cx);
5035 for selection in &mut self.selections.all::<Point>(cx) {
5036 let selection_head = selection.head();
5037 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5038 continue;
5039 };
5040
5041 let mut bracket_pair = None;
5042 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5043 let prev_chars = snapshot
5044 .reversed_chars_at(selection_head)
5045 .collect::<String>();
5046 for (pair, enabled) in scope.brackets() {
5047 if enabled
5048 && pair.close
5049 && prev_chars.starts_with(pair.start.as_str())
5050 && next_chars.starts_with(pair.end.as_str())
5051 {
5052 bracket_pair = Some(pair.clone());
5053 break;
5054 }
5055 }
5056 if let Some(pair) = bracket_pair {
5057 let start = snapshot.anchor_after(selection_head);
5058 let end = snapshot.anchor_after(selection_head);
5059 self.autoclose_regions.push(AutocloseRegion {
5060 selection_id: selection.id,
5061 range: start..end,
5062 pair,
5063 });
5064 }
5065 }
5066 }
5067 }
5068 Ok(())
5069 }
5070
5071 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5072 self.move_to_snippet_tabstop(Bias::Right, cx)
5073 }
5074
5075 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5076 self.move_to_snippet_tabstop(Bias::Left, cx)
5077 }
5078
5079 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5080 if let Some(mut snippet) = self.snippet_stack.pop() {
5081 match bias {
5082 Bias::Left => {
5083 if snippet.active_index > 0 {
5084 snippet.active_index -= 1;
5085 } else {
5086 self.snippet_stack.push(snippet);
5087 return false;
5088 }
5089 }
5090 Bias::Right => {
5091 if snippet.active_index + 1 < snippet.ranges.len() {
5092 snippet.active_index += 1;
5093 } else {
5094 self.snippet_stack.push(snippet);
5095 return false;
5096 }
5097 }
5098 }
5099 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5100 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5101 s.select_anchor_ranges(current_ranges.iter().cloned())
5102 });
5103 // If snippet state is not at the last tabstop, push it back on the stack
5104 if snippet.active_index + 1 < snippet.ranges.len() {
5105 self.snippet_stack.push(snippet);
5106 }
5107 return true;
5108 }
5109 }
5110
5111 false
5112 }
5113
5114 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5115 self.transact(cx, |this, cx| {
5116 this.select_all(&SelectAll, cx);
5117 this.insert("", cx);
5118 });
5119 }
5120
5121 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5122 self.transact(cx, |this, cx| {
5123 this.select_autoclose_pair(cx);
5124 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5125 if !this.linked_edit_ranges.is_empty() {
5126 let selections = this.selections.all::<MultiBufferPoint>(cx);
5127 let snapshot = this.buffer.read(cx).snapshot(cx);
5128
5129 for selection in selections.iter() {
5130 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5131 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5132 if selection_start.buffer_id != selection_end.buffer_id {
5133 continue;
5134 }
5135 if let Some(ranges) =
5136 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5137 {
5138 for (buffer, entries) in ranges {
5139 linked_ranges.entry(buffer).or_default().extend(entries);
5140 }
5141 }
5142 }
5143 }
5144
5145 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5146 if !this.selections.line_mode {
5147 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5148 for selection in &mut selections {
5149 if selection.is_empty() {
5150 let old_head = selection.head();
5151 let mut new_head =
5152 movement::left(&display_map, old_head.to_display_point(&display_map))
5153 .to_point(&display_map);
5154 if let Some((buffer, line_buffer_range)) = display_map
5155 .buffer_snapshot
5156 .buffer_line_for_row(MultiBufferRow(old_head.row))
5157 {
5158 let indent_size =
5159 buffer.indent_size_for_line(line_buffer_range.start.row);
5160 let indent_len = match indent_size.kind {
5161 IndentKind::Space => {
5162 buffer.settings_at(line_buffer_range.start, cx).tab_size
5163 }
5164 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5165 };
5166 if old_head.column <= indent_size.len && old_head.column > 0 {
5167 let indent_len = indent_len.get();
5168 new_head = cmp::min(
5169 new_head,
5170 MultiBufferPoint::new(
5171 old_head.row,
5172 ((old_head.column - 1) / indent_len) * indent_len,
5173 ),
5174 );
5175 }
5176 }
5177
5178 selection.set_head(new_head, SelectionGoal::None);
5179 }
5180 }
5181 }
5182
5183 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5184 this.insert("", cx);
5185 let empty_str: Arc<str> = Arc::from("");
5186 for (buffer, edits) in linked_ranges {
5187 let snapshot = buffer.read(cx).snapshot();
5188 use text::ToPoint as TP;
5189
5190 let edits = edits
5191 .into_iter()
5192 .map(|range| {
5193 let end_point = TP::to_point(&range.end, &snapshot);
5194 let mut start_point = TP::to_point(&range.start, &snapshot);
5195
5196 if end_point == start_point {
5197 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5198 .saturating_sub(1);
5199 start_point = TP::to_point(&offset, &snapshot);
5200 };
5201
5202 (start_point..end_point, empty_str.clone())
5203 })
5204 .sorted_by_key(|(range, _)| range.start)
5205 .collect::<Vec<_>>();
5206 buffer.update(cx, |this, cx| {
5207 this.edit(edits, None, cx);
5208 })
5209 }
5210 this.refresh_inline_completion(true, cx);
5211 linked_editing_ranges::refresh_linked_ranges(this, cx);
5212 });
5213 }
5214
5215 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5216 self.transact(cx, |this, cx| {
5217 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5218 let line_mode = s.line_mode;
5219 s.move_with(|map, selection| {
5220 if selection.is_empty() && !line_mode {
5221 let cursor = movement::right(map, selection.head());
5222 selection.end = cursor;
5223 selection.reversed = true;
5224 selection.goal = SelectionGoal::None;
5225 }
5226 })
5227 });
5228 this.insert("", cx);
5229 this.refresh_inline_completion(true, cx);
5230 });
5231 }
5232
5233 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5234 if self.move_to_prev_snippet_tabstop(cx) {
5235 return;
5236 }
5237
5238 self.outdent(&Outdent, cx);
5239 }
5240
5241 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5242 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5243 return;
5244 }
5245
5246 let mut selections = self.selections.all_adjusted(cx);
5247 let buffer = self.buffer.read(cx);
5248 let snapshot = buffer.snapshot(cx);
5249 let rows_iter = selections.iter().map(|s| s.head().row);
5250 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5251
5252 let mut edits = Vec::new();
5253 let mut prev_edited_row = 0;
5254 let mut row_delta = 0;
5255 for selection in &mut selections {
5256 if selection.start.row != prev_edited_row {
5257 row_delta = 0;
5258 }
5259 prev_edited_row = selection.end.row;
5260
5261 // If the selection is non-empty, then increase the indentation of the selected lines.
5262 if !selection.is_empty() {
5263 row_delta =
5264 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5265 continue;
5266 }
5267
5268 // If the selection is empty and the cursor is in the leading whitespace before the
5269 // suggested indentation, then auto-indent the line.
5270 let cursor = selection.head();
5271 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5272 if let Some(suggested_indent) =
5273 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5274 {
5275 if cursor.column < suggested_indent.len
5276 && cursor.column <= current_indent.len
5277 && current_indent.len <= suggested_indent.len
5278 {
5279 selection.start = Point::new(cursor.row, suggested_indent.len);
5280 selection.end = selection.start;
5281 if row_delta == 0 {
5282 edits.extend(Buffer::edit_for_indent_size_adjustment(
5283 cursor.row,
5284 current_indent,
5285 suggested_indent,
5286 ));
5287 row_delta = suggested_indent.len - current_indent.len;
5288 }
5289 continue;
5290 }
5291 }
5292
5293 // Otherwise, insert a hard or soft tab.
5294 let settings = buffer.settings_at(cursor, cx);
5295 let tab_size = if settings.hard_tabs {
5296 IndentSize::tab()
5297 } else {
5298 let tab_size = settings.tab_size.get();
5299 let char_column = snapshot
5300 .text_for_range(Point::new(cursor.row, 0)..cursor)
5301 .flat_map(str::chars)
5302 .count()
5303 + row_delta as usize;
5304 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5305 IndentSize::spaces(chars_to_next_tab_stop)
5306 };
5307 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5308 selection.end = selection.start;
5309 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5310 row_delta += tab_size.len;
5311 }
5312
5313 self.transact(cx, |this, cx| {
5314 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5315 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5316 this.refresh_inline_completion(true, cx);
5317 });
5318 }
5319
5320 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5321 if self.read_only(cx) {
5322 return;
5323 }
5324 let mut selections = self.selections.all::<Point>(cx);
5325 let mut prev_edited_row = 0;
5326 let mut row_delta = 0;
5327 let mut edits = Vec::new();
5328 let buffer = self.buffer.read(cx);
5329 let snapshot = buffer.snapshot(cx);
5330 for selection in &mut selections {
5331 if selection.start.row != prev_edited_row {
5332 row_delta = 0;
5333 }
5334 prev_edited_row = selection.end.row;
5335
5336 row_delta =
5337 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5338 }
5339
5340 self.transact(cx, |this, cx| {
5341 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5342 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5343 });
5344 }
5345
5346 fn indent_selection(
5347 buffer: &MultiBuffer,
5348 snapshot: &MultiBufferSnapshot,
5349 selection: &mut Selection<Point>,
5350 edits: &mut Vec<(Range<Point>, String)>,
5351 delta_for_start_row: u32,
5352 cx: &AppContext,
5353 ) -> u32 {
5354 let settings = buffer.settings_at(selection.start, cx);
5355 let tab_size = settings.tab_size.get();
5356 let indent_kind = if settings.hard_tabs {
5357 IndentKind::Tab
5358 } else {
5359 IndentKind::Space
5360 };
5361 let mut start_row = selection.start.row;
5362 let mut end_row = selection.end.row + 1;
5363
5364 // If a selection ends at the beginning of a line, don't indent
5365 // that last line.
5366 if selection.end.column == 0 && selection.end.row > selection.start.row {
5367 end_row -= 1;
5368 }
5369
5370 // Avoid re-indenting a row that has already been indented by a
5371 // previous selection, but still update this selection's column
5372 // to reflect that indentation.
5373 if delta_for_start_row > 0 {
5374 start_row += 1;
5375 selection.start.column += delta_for_start_row;
5376 if selection.end.row == selection.start.row {
5377 selection.end.column += delta_for_start_row;
5378 }
5379 }
5380
5381 let mut delta_for_end_row = 0;
5382 let has_multiple_rows = start_row + 1 != end_row;
5383 for row in start_row..end_row {
5384 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5385 let indent_delta = match (current_indent.kind, indent_kind) {
5386 (IndentKind::Space, IndentKind::Space) => {
5387 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5388 IndentSize::spaces(columns_to_next_tab_stop)
5389 }
5390 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5391 (_, IndentKind::Tab) => IndentSize::tab(),
5392 };
5393
5394 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5395 0
5396 } else {
5397 selection.start.column
5398 };
5399 let row_start = Point::new(row, start);
5400 edits.push((
5401 row_start..row_start,
5402 indent_delta.chars().collect::<String>(),
5403 ));
5404
5405 // Update this selection's endpoints to reflect the indentation.
5406 if row == selection.start.row {
5407 selection.start.column += indent_delta.len;
5408 }
5409 if row == selection.end.row {
5410 selection.end.column += indent_delta.len;
5411 delta_for_end_row = indent_delta.len;
5412 }
5413 }
5414
5415 if selection.start.row == selection.end.row {
5416 delta_for_start_row + delta_for_end_row
5417 } else {
5418 delta_for_end_row
5419 }
5420 }
5421
5422 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5423 if self.read_only(cx) {
5424 return;
5425 }
5426 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5427 let selections = self.selections.all::<Point>(cx);
5428 let mut deletion_ranges = Vec::new();
5429 let mut last_outdent = None;
5430 {
5431 let buffer = self.buffer.read(cx);
5432 let snapshot = buffer.snapshot(cx);
5433 for selection in &selections {
5434 let settings = buffer.settings_at(selection.start, cx);
5435 let tab_size = settings.tab_size.get();
5436 let mut rows = selection.spanned_rows(false, &display_map);
5437
5438 // Avoid re-outdenting a row that has already been outdented by a
5439 // previous selection.
5440 if let Some(last_row) = last_outdent {
5441 if last_row == rows.start {
5442 rows.start = rows.start.next_row();
5443 }
5444 }
5445 let has_multiple_rows = rows.len() > 1;
5446 for row in rows.iter_rows() {
5447 let indent_size = snapshot.indent_size_for_line(row);
5448 if indent_size.len > 0 {
5449 let deletion_len = match indent_size.kind {
5450 IndentKind::Space => {
5451 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5452 if columns_to_prev_tab_stop == 0 {
5453 tab_size
5454 } else {
5455 columns_to_prev_tab_stop
5456 }
5457 }
5458 IndentKind::Tab => 1,
5459 };
5460 let start = if has_multiple_rows
5461 || deletion_len > selection.start.column
5462 || indent_size.len < selection.start.column
5463 {
5464 0
5465 } else {
5466 selection.start.column - deletion_len
5467 };
5468 deletion_ranges.push(
5469 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5470 );
5471 last_outdent = Some(row);
5472 }
5473 }
5474 }
5475 }
5476
5477 self.transact(cx, |this, cx| {
5478 this.buffer.update(cx, |buffer, cx| {
5479 let empty_str: Arc<str> = "".into();
5480 buffer.edit(
5481 deletion_ranges
5482 .into_iter()
5483 .map(|range| (range, empty_str.clone())),
5484 None,
5485 cx,
5486 );
5487 });
5488 let selections = this.selections.all::<usize>(cx);
5489 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5490 });
5491 }
5492
5493 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5494 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5495 let selections = self.selections.all::<Point>(cx);
5496
5497 let mut new_cursors = Vec::new();
5498 let mut edit_ranges = Vec::new();
5499 let mut selections = selections.iter().peekable();
5500 while let Some(selection) = selections.next() {
5501 let mut rows = selection.spanned_rows(false, &display_map);
5502 let goal_display_column = selection.head().to_display_point(&display_map).column();
5503
5504 // Accumulate contiguous regions of rows that we want to delete.
5505 while let Some(next_selection) = selections.peek() {
5506 let next_rows = next_selection.spanned_rows(false, &display_map);
5507 if next_rows.start <= rows.end {
5508 rows.end = next_rows.end;
5509 selections.next().unwrap();
5510 } else {
5511 break;
5512 }
5513 }
5514
5515 let buffer = &display_map.buffer_snapshot;
5516 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5517 let edit_end;
5518 let cursor_buffer_row;
5519 if buffer.max_point().row >= rows.end.0 {
5520 // If there's a line after the range, delete the \n from the end of the row range
5521 // and position the cursor on the next line.
5522 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5523 cursor_buffer_row = rows.end;
5524 } else {
5525 // If there isn't a line after the range, delete the \n from the line before the
5526 // start of the row range and position the cursor there.
5527 edit_start = edit_start.saturating_sub(1);
5528 edit_end = buffer.len();
5529 cursor_buffer_row = rows.start.previous_row();
5530 }
5531
5532 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5533 *cursor.column_mut() =
5534 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5535
5536 new_cursors.push((
5537 selection.id,
5538 buffer.anchor_after(cursor.to_point(&display_map)),
5539 ));
5540 edit_ranges.push(edit_start..edit_end);
5541 }
5542
5543 self.transact(cx, |this, cx| {
5544 let buffer = this.buffer.update(cx, |buffer, cx| {
5545 let empty_str: Arc<str> = "".into();
5546 buffer.edit(
5547 edit_ranges
5548 .into_iter()
5549 .map(|range| (range, empty_str.clone())),
5550 None,
5551 cx,
5552 );
5553 buffer.snapshot(cx)
5554 });
5555 let new_selections = new_cursors
5556 .into_iter()
5557 .map(|(id, cursor)| {
5558 let cursor = cursor.to_point(&buffer);
5559 Selection {
5560 id,
5561 start: cursor,
5562 end: cursor,
5563 reversed: false,
5564 goal: SelectionGoal::None,
5565 }
5566 })
5567 .collect();
5568
5569 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5570 s.select(new_selections);
5571 });
5572 });
5573 }
5574
5575 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5576 if self.read_only(cx) {
5577 return;
5578 }
5579 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5580 for selection in self.selections.all::<Point>(cx) {
5581 let start = MultiBufferRow(selection.start.row);
5582 let end = if selection.start.row == selection.end.row {
5583 MultiBufferRow(selection.start.row + 1)
5584 } else {
5585 MultiBufferRow(selection.end.row)
5586 };
5587
5588 if let Some(last_row_range) = row_ranges.last_mut() {
5589 if start <= last_row_range.end {
5590 last_row_range.end = end;
5591 continue;
5592 }
5593 }
5594 row_ranges.push(start..end);
5595 }
5596
5597 let snapshot = self.buffer.read(cx).snapshot(cx);
5598 let mut cursor_positions = Vec::new();
5599 for row_range in &row_ranges {
5600 let anchor = snapshot.anchor_before(Point::new(
5601 row_range.end.previous_row().0,
5602 snapshot.line_len(row_range.end.previous_row()),
5603 ));
5604 cursor_positions.push(anchor..anchor);
5605 }
5606
5607 self.transact(cx, |this, cx| {
5608 for row_range in row_ranges.into_iter().rev() {
5609 for row in row_range.iter_rows().rev() {
5610 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5611 let next_line_row = row.next_row();
5612 let indent = snapshot.indent_size_for_line(next_line_row);
5613 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5614
5615 let replace = if snapshot.line_len(next_line_row) > indent.len {
5616 " "
5617 } else {
5618 ""
5619 };
5620
5621 this.buffer.update(cx, |buffer, cx| {
5622 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5623 });
5624 }
5625 }
5626
5627 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5628 s.select_anchor_ranges(cursor_positions)
5629 });
5630 });
5631 }
5632
5633 pub fn sort_lines_case_sensitive(
5634 &mut self,
5635 _: &SortLinesCaseSensitive,
5636 cx: &mut ViewContext<Self>,
5637 ) {
5638 self.manipulate_lines(cx, |lines| lines.sort())
5639 }
5640
5641 pub fn sort_lines_case_insensitive(
5642 &mut self,
5643 _: &SortLinesCaseInsensitive,
5644 cx: &mut ViewContext<Self>,
5645 ) {
5646 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5647 }
5648
5649 pub fn unique_lines_case_insensitive(
5650 &mut self,
5651 _: &UniqueLinesCaseInsensitive,
5652 cx: &mut ViewContext<Self>,
5653 ) {
5654 self.manipulate_lines(cx, |lines| {
5655 let mut seen = HashSet::default();
5656 lines.retain(|line| seen.insert(line.to_lowercase()));
5657 })
5658 }
5659
5660 pub fn unique_lines_case_sensitive(
5661 &mut self,
5662 _: &UniqueLinesCaseSensitive,
5663 cx: &mut ViewContext<Self>,
5664 ) {
5665 self.manipulate_lines(cx, |lines| {
5666 let mut seen = HashSet::default();
5667 lines.retain(|line| seen.insert(*line));
5668 })
5669 }
5670
5671 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5672 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
5673 if !revert_changes.is_empty() {
5674 self.transact(cx, |editor, cx| {
5675 editor.buffer().update(cx, |multi_buffer, cx| {
5676 for (buffer_id, changes) in revert_changes {
5677 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
5678 buffer.update(cx, |buffer, cx| {
5679 buffer.edit(
5680 changes.into_iter().map(|(range, text)| {
5681 (range, text.to_string().map(Arc::<str>::from))
5682 }),
5683 None,
5684 cx,
5685 );
5686 });
5687 }
5688 }
5689 });
5690 editor.change_selections(None, cx, |selections| selections.refresh());
5691 });
5692 }
5693 }
5694
5695 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5696 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5697 let project_path = buffer.read(cx).project_path(cx)?;
5698 let project = self.project.as_ref()?.read(cx);
5699 let entry = project.entry_for_path(&project_path, cx)?;
5700 let abs_path = project.absolute_path(&project_path, cx)?;
5701 let parent = if entry.is_symlink {
5702 abs_path.canonicalize().ok()?
5703 } else {
5704 abs_path
5705 }
5706 .parent()?
5707 .to_path_buf();
5708 Some(parent)
5709 }) {
5710 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
5711 }
5712 }
5713
5714 fn gather_revert_changes(
5715 &mut self,
5716 selections: &[Selection<Anchor>],
5717 cx: &mut ViewContext<'_, Editor>,
5718 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
5719 let mut revert_changes = HashMap::default();
5720 self.buffer.update(cx, |multi_buffer, cx| {
5721 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
5722 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
5723 Self::prepare_revert_change(&mut revert_changes, &multi_buffer, &hunk, cx);
5724 }
5725 });
5726 revert_changes
5727 }
5728
5729 fn prepare_revert_change(
5730 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
5731 multi_buffer: &MultiBuffer,
5732 hunk: &DiffHunk<MultiBufferRow>,
5733 cx: &mut AppContext,
5734 ) -> Option<()> {
5735 let buffer = multi_buffer.buffer(hunk.buffer_id)?;
5736 let buffer = buffer.read(cx);
5737 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
5738 let buffer_snapshot = buffer.snapshot();
5739 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
5740 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
5741 probe
5742 .0
5743 .start
5744 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
5745 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
5746 }) {
5747 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
5748 Some(())
5749 } else {
5750 None
5751 }
5752 }
5753
5754 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
5755 self.manipulate_lines(cx, |lines| lines.reverse())
5756 }
5757
5758 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
5759 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
5760 }
5761
5762 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5763 where
5764 Fn: FnMut(&mut Vec<&str>),
5765 {
5766 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5767 let buffer = self.buffer.read(cx).snapshot(cx);
5768
5769 let mut edits = Vec::new();
5770
5771 let selections = self.selections.all::<Point>(cx);
5772 let mut selections = selections.iter().peekable();
5773 let mut contiguous_row_selections = Vec::new();
5774 let mut new_selections = Vec::new();
5775 let mut added_lines = 0;
5776 let mut removed_lines = 0;
5777
5778 while let Some(selection) = selections.next() {
5779 let (start_row, end_row) = consume_contiguous_rows(
5780 &mut contiguous_row_selections,
5781 selection,
5782 &display_map,
5783 &mut selections,
5784 );
5785
5786 let start_point = Point::new(start_row.0, 0);
5787 let end_point = Point::new(
5788 end_row.previous_row().0,
5789 buffer.line_len(end_row.previous_row()),
5790 );
5791 let text = buffer
5792 .text_for_range(start_point..end_point)
5793 .collect::<String>();
5794
5795 let mut lines = text.split('\n').collect_vec();
5796
5797 let lines_before = lines.len();
5798 callback(&mut lines);
5799 let lines_after = lines.len();
5800
5801 edits.push((start_point..end_point, lines.join("\n")));
5802
5803 // Selections must change based on added and removed line count
5804 let start_row =
5805 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
5806 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
5807 new_selections.push(Selection {
5808 id: selection.id,
5809 start: start_row,
5810 end: end_row,
5811 goal: SelectionGoal::None,
5812 reversed: selection.reversed,
5813 });
5814
5815 if lines_after > lines_before {
5816 added_lines += lines_after - lines_before;
5817 } else if lines_before > lines_after {
5818 removed_lines += lines_before - lines_after;
5819 }
5820 }
5821
5822 self.transact(cx, |this, cx| {
5823 let buffer = this.buffer.update(cx, |buffer, cx| {
5824 buffer.edit(edits, None, cx);
5825 buffer.snapshot(cx)
5826 });
5827
5828 // Recalculate offsets on newly edited buffer
5829 let new_selections = new_selections
5830 .iter()
5831 .map(|s| {
5832 let start_point = Point::new(s.start.0, 0);
5833 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
5834 Selection {
5835 id: s.id,
5836 start: buffer.point_to_offset(start_point),
5837 end: buffer.point_to_offset(end_point),
5838 goal: s.goal,
5839 reversed: s.reversed,
5840 }
5841 })
5842 .collect();
5843
5844 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5845 s.select(new_selections);
5846 });
5847
5848 this.request_autoscroll(Autoscroll::fit(), cx);
5849 });
5850 }
5851
5852 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
5853 self.manipulate_text(cx, |text| text.to_uppercase())
5854 }
5855
5856 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
5857 self.manipulate_text(cx, |text| text.to_lowercase())
5858 }
5859
5860 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
5861 self.manipulate_text(cx, |text| {
5862 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5863 // https://github.com/rutrum/convert-case/issues/16
5864 text.split('\n')
5865 .map(|line| line.to_case(Case::Title))
5866 .join("\n")
5867 })
5868 }
5869
5870 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
5871 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
5872 }
5873
5874 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
5875 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
5876 }
5877
5878 pub fn convert_to_upper_camel_case(
5879 &mut self,
5880 _: &ConvertToUpperCamelCase,
5881 cx: &mut ViewContext<Self>,
5882 ) {
5883 self.manipulate_text(cx, |text| {
5884 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
5885 // https://github.com/rutrum/convert-case/issues/16
5886 text.split('\n')
5887 .map(|line| line.to_case(Case::UpperCamel))
5888 .join("\n")
5889 })
5890 }
5891
5892 pub fn convert_to_lower_camel_case(
5893 &mut self,
5894 _: &ConvertToLowerCamelCase,
5895 cx: &mut ViewContext<Self>,
5896 ) {
5897 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
5898 }
5899
5900 pub fn convert_to_opposite_case(
5901 &mut self,
5902 _: &ConvertToOppositeCase,
5903 cx: &mut ViewContext<Self>,
5904 ) {
5905 self.manipulate_text(cx, |text| {
5906 text.chars()
5907 .fold(String::with_capacity(text.len()), |mut t, c| {
5908 if c.is_uppercase() {
5909 t.extend(c.to_lowercase());
5910 } else {
5911 t.extend(c.to_uppercase());
5912 }
5913 t
5914 })
5915 })
5916 }
5917
5918 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
5919 where
5920 Fn: FnMut(&str) -> String,
5921 {
5922 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5923 let buffer = self.buffer.read(cx).snapshot(cx);
5924
5925 let mut new_selections = Vec::new();
5926 let mut edits = Vec::new();
5927 let mut selection_adjustment = 0i32;
5928
5929 for selection in self.selections.all::<usize>(cx) {
5930 let selection_is_empty = selection.is_empty();
5931
5932 let (start, end) = if selection_is_empty {
5933 let word_range = movement::surrounding_word(
5934 &display_map,
5935 selection.start.to_display_point(&display_map),
5936 );
5937 let start = word_range.start.to_offset(&display_map, Bias::Left);
5938 let end = word_range.end.to_offset(&display_map, Bias::Left);
5939 (start, end)
5940 } else {
5941 (selection.start, selection.end)
5942 };
5943
5944 let text = buffer.text_for_range(start..end).collect::<String>();
5945 let old_length = text.len() as i32;
5946 let text = callback(&text);
5947
5948 new_selections.push(Selection {
5949 start: (start as i32 - selection_adjustment) as usize,
5950 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
5951 goal: SelectionGoal::None,
5952 ..selection
5953 });
5954
5955 selection_adjustment += old_length - text.len() as i32;
5956
5957 edits.push((start..end, text));
5958 }
5959
5960 self.transact(cx, |this, cx| {
5961 this.buffer.update(cx, |buffer, cx| {
5962 buffer.edit(edits, None, cx);
5963 });
5964
5965 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5966 s.select(new_selections);
5967 });
5968
5969 this.request_autoscroll(Autoscroll::fit(), cx);
5970 });
5971 }
5972
5973 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
5974 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5975 let buffer = &display_map.buffer_snapshot;
5976 let selections = self.selections.all::<Point>(cx);
5977
5978 let mut edits = Vec::new();
5979 let mut selections_iter = selections.iter().peekable();
5980 while let Some(selection) = selections_iter.next() {
5981 // Avoid duplicating the same lines twice.
5982 let mut rows = selection.spanned_rows(false, &display_map);
5983
5984 while let Some(next_selection) = selections_iter.peek() {
5985 let next_rows = next_selection.spanned_rows(false, &display_map);
5986 if next_rows.start < rows.end {
5987 rows.end = next_rows.end;
5988 selections_iter.next().unwrap();
5989 } else {
5990 break;
5991 }
5992 }
5993
5994 // Copy the text from the selected row region and splice it either at the start
5995 // or end of the region.
5996 let start = Point::new(rows.start.0, 0);
5997 let end = Point::new(
5998 rows.end.previous_row().0,
5999 buffer.line_len(rows.end.previous_row()),
6000 );
6001 let text = buffer
6002 .text_for_range(start..end)
6003 .chain(Some("\n"))
6004 .collect::<String>();
6005 let insert_location = if upwards {
6006 Point::new(rows.end.0, 0)
6007 } else {
6008 start
6009 };
6010 edits.push((insert_location..insert_location, text));
6011 }
6012
6013 self.transact(cx, |this, cx| {
6014 this.buffer.update(cx, |buffer, cx| {
6015 buffer.edit(edits, None, cx);
6016 });
6017
6018 this.request_autoscroll(Autoscroll::fit(), cx);
6019 });
6020 }
6021
6022 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6023 self.duplicate_line(true, cx);
6024 }
6025
6026 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6027 self.duplicate_line(false, cx);
6028 }
6029
6030 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6031 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6032 let buffer = self.buffer.read(cx).snapshot(cx);
6033
6034 let mut edits = Vec::new();
6035 let mut unfold_ranges = Vec::new();
6036 let mut refold_ranges = Vec::new();
6037
6038 let selections = self.selections.all::<Point>(cx);
6039 let mut selections = selections.iter().peekable();
6040 let mut contiguous_row_selections = Vec::new();
6041 let mut new_selections = Vec::new();
6042
6043 while let Some(selection) = selections.next() {
6044 // Find all the selections that span a contiguous row range
6045 let (start_row, end_row) = consume_contiguous_rows(
6046 &mut contiguous_row_selections,
6047 selection,
6048 &display_map,
6049 &mut selections,
6050 );
6051
6052 // Move the text spanned by the row range to be before the line preceding the row range
6053 if start_row.0 > 0 {
6054 let range_to_move = Point::new(
6055 start_row.previous_row().0,
6056 buffer.line_len(start_row.previous_row()),
6057 )
6058 ..Point::new(
6059 end_row.previous_row().0,
6060 buffer.line_len(end_row.previous_row()),
6061 );
6062 let insertion_point = display_map
6063 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6064 .0;
6065
6066 // Don't move lines across excerpts
6067 if buffer
6068 .excerpt_boundaries_in_range((
6069 Bound::Excluded(insertion_point),
6070 Bound::Included(range_to_move.end),
6071 ))
6072 .next()
6073 .is_none()
6074 {
6075 let text = buffer
6076 .text_for_range(range_to_move.clone())
6077 .flat_map(|s| s.chars())
6078 .skip(1)
6079 .chain(['\n'])
6080 .collect::<String>();
6081
6082 edits.push((
6083 buffer.anchor_after(range_to_move.start)
6084 ..buffer.anchor_before(range_to_move.end),
6085 String::new(),
6086 ));
6087 let insertion_anchor = buffer.anchor_after(insertion_point);
6088 edits.push((insertion_anchor..insertion_anchor, text));
6089
6090 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6091
6092 // Move selections up
6093 new_selections.extend(contiguous_row_selections.drain(..).map(
6094 |mut selection| {
6095 selection.start.row -= row_delta;
6096 selection.end.row -= row_delta;
6097 selection
6098 },
6099 ));
6100
6101 // Move folds up
6102 unfold_ranges.push(range_to_move.clone());
6103 for fold in display_map.folds_in_range(
6104 buffer.anchor_before(range_to_move.start)
6105 ..buffer.anchor_after(range_to_move.end),
6106 ) {
6107 let mut start = fold.range.start.to_point(&buffer);
6108 let mut end = fold.range.end.to_point(&buffer);
6109 start.row -= row_delta;
6110 end.row -= row_delta;
6111 refold_ranges.push((start..end, fold.placeholder.clone()));
6112 }
6113 }
6114 }
6115
6116 // If we didn't move line(s), preserve the existing selections
6117 new_selections.append(&mut contiguous_row_selections);
6118 }
6119
6120 self.transact(cx, |this, cx| {
6121 this.unfold_ranges(unfold_ranges, true, true, cx);
6122 this.buffer.update(cx, |buffer, cx| {
6123 for (range, text) in edits {
6124 buffer.edit([(range, text)], None, cx);
6125 }
6126 });
6127 this.fold_ranges(refold_ranges, true, cx);
6128 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6129 s.select(new_selections);
6130 })
6131 });
6132 }
6133
6134 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6135 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6136 let buffer = self.buffer.read(cx).snapshot(cx);
6137
6138 let mut edits = Vec::new();
6139 let mut unfold_ranges = Vec::new();
6140 let mut refold_ranges = Vec::new();
6141
6142 let selections = self.selections.all::<Point>(cx);
6143 let mut selections = selections.iter().peekable();
6144 let mut contiguous_row_selections = Vec::new();
6145 let mut new_selections = Vec::new();
6146
6147 while let Some(selection) = selections.next() {
6148 // Find all the selections that span a contiguous row range
6149 let (start_row, end_row) = consume_contiguous_rows(
6150 &mut contiguous_row_selections,
6151 selection,
6152 &display_map,
6153 &mut selections,
6154 );
6155
6156 // Move the text spanned by the row range to be after the last line of the row range
6157 if end_row.0 <= buffer.max_point().row {
6158 let range_to_move =
6159 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6160 let insertion_point = display_map
6161 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6162 .0;
6163
6164 // Don't move lines across excerpt boundaries
6165 if buffer
6166 .excerpt_boundaries_in_range((
6167 Bound::Excluded(range_to_move.start),
6168 Bound::Included(insertion_point),
6169 ))
6170 .next()
6171 .is_none()
6172 {
6173 let mut text = String::from("\n");
6174 text.extend(buffer.text_for_range(range_to_move.clone()));
6175 text.pop(); // Drop trailing newline
6176 edits.push((
6177 buffer.anchor_after(range_to_move.start)
6178 ..buffer.anchor_before(range_to_move.end),
6179 String::new(),
6180 ));
6181 let insertion_anchor = buffer.anchor_after(insertion_point);
6182 edits.push((insertion_anchor..insertion_anchor, text));
6183
6184 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6185
6186 // Move selections down
6187 new_selections.extend(contiguous_row_selections.drain(..).map(
6188 |mut selection| {
6189 selection.start.row += row_delta;
6190 selection.end.row += row_delta;
6191 selection
6192 },
6193 ));
6194
6195 // Move folds down
6196 unfold_ranges.push(range_to_move.clone());
6197 for fold in display_map.folds_in_range(
6198 buffer.anchor_before(range_to_move.start)
6199 ..buffer.anchor_after(range_to_move.end),
6200 ) {
6201 let mut start = fold.range.start.to_point(&buffer);
6202 let mut end = fold.range.end.to_point(&buffer);
6203 start.row += row_delta;
6204 end.row += row_delta;
6205 refold_ranges.push((start..end, fold.placeholder.clone()));
6206 }
6207 }
6208 }
6209
6210 // If we didn't move line(s), preserve the existing selections
6211 new_selections.append(&mut contiguous_row_selections);
6212 }
6213
6214 self.transact(cx, |this, cx| {
6215 this.unfold_ranges(unfold_ranges, true, true, cx);
6216 this.buffer.update(cx, |buffer, cx| {
6217 for (range, text) in edits {
6218 buffer.edit([(range, text)], None, cx);
6219 }
6220 });
6221 this.fold_ranges(refold_ranges, true, cx);
6222 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6223 });
6224 }
6225
6226 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6227 let text_layout_details = &self.text_layout_details(cx);
6228 self.transact(cx, |this, cx| {
6229 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6230 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6231 let line_mode = s.line_mode;
6232 s.move_with(|display_map, selection| {
6233 if !selection.is_empty() || line_mode {
6234 return;
6235 }
6236
6237 let mut head = selection.head();
6238 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6239 if head.column() == display_map.line_len(head.row()) {
6240 transpose_offset = display_map
6241 .buffer_snapshot
6242 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6243 }
6244
6245 if transpose_offset == 0 {
6246 return;
6247 }
6248
6249 *head.column_mut() += 1;
6250 head = display_map.clip_point(head, Bias::Right);
6251 let goal = SelectionGoal::HorizontalPosition(
6252 display_map
6253 .x_for_display_point(head, &text_layout_details)
6254 .into(),
6255 );
6256 selection.collapse_to(head, goal);
6257
6258 let transpose_start = display_map
6259 .buffer_snapshot
6260 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6261 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6262 let transpose_end = display_map
6263 .buffer_snapshot
6264 .clip_offset(transpose_offset + 1, Bias::Right);
6265 if let Some(ch) =
6266 display_map.buffer_snapshot.chars_at(transpose_start).next()
6267 {
6268 edits.push((transpose_start..transpose_offset, String::new()));
6269 edits.push((transpose_end..transpose_end, ch.to_string()));
6270 }
6271 }
6272 });
6273 edits
6274 });
6275 this.buffer
6276 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6277 let selections = this.selections.all::<usize>(cx);
6278 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6279 s.select(selections);
6280 });
6281 });
6282 }
6283
6284 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6285 let mut text = String::new();
6286 let buffer = self.buffer.read(cx).snapshot(cx);
6287 let mut selections = self.selections.all::<Point>(cx);
6288 let mut clipboard_selections = Vec::with_capacity(selections.len());
6289 {
6290 let max_point = buffer.max_point();
6291 let mut is_first = true;
6292 for selection in &mut selections {
6293 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6294 if is_entire_line {
6295 selection.start = Point::new(selection.start.row, 0);
6296 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6297 selection.goal = SelectionGoal::None;
6298 }
6299 if is_first {
6300 is_first = false;
6301 } else {
6302 text += "\n";
6303 }
6304 let mut len = 0;
6305 for chunk in buffer.text_for_range(selection.start..selection.end) {
6306 text.push_str(chunk);
6307 len += chunk.len();
6308 }
6309 clipboard_selections.push(ClipboardSelection {
6310 len,
6311 is_entire_line,
6312 first_line_indent: buffer
6313 .indent_size_for_line(MultiBufferRow(selection.start.row))
6314 .len,
6315 });
6316 }
6317 }
6318
6319 self.transact(cx, |this, cx| {
6320 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6321 s.select(selections);
6322 });
6323 this.insert("", cx);
6324 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6325 });
6326 }
6327
6328 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6329 let selections = self.selections.all::<Point>(cx);
6330 let buffer = self.buffer.read(cx).read(cx);
6331 let mut text = String::new();
6332
6333 let mut clipboard_selections = Vec::with_capacity(selections.len());
6334 {
6335 let max_point = buffer.max_point();
6336 let mut is_first = true;
6337 for selection in selections.iter() {
6338 let mut start = selection.start;
6339 let mut end = selection.end;
6340 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6341 if is_entire_line {
6342 start = Point::new(start.row, 0);
6343 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6344 }
6345 if is_first {
6346 is_first = false;
6347 } else {
6348 text += "\n";
6349 }
6350 let mut len = 0;
6351 for chunk in buffer.text_for_range(start..end) {
6352 text.push_str(chunk);
6353 len += chunk.len();
6354 }
6355 clipboard_selections.push(ClipboardSelection {
6356 len,
6357 is_entire_line,
6358 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6359 });
6360 }
6361 }
6362
6363 cx.write_to_clipboard(ClipboardItem::new(text).with_metadata(clipboard_selections));
6364 }
6365
6366 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6367 if self.read_only(cx) {
6368 return;
6369 }
6370
6371 self.transact(cx, |this, cx| {
6372 if let Some(item) = cx.read_from_clipboard() {
6373 let clipboard_text = Cow::Borrowed(item.text());
6374 if let Some(mut clipboard_selections) = item.metadata::<Vec<ClipboardSelection>>() {
6375 let old_selections = this.selections.all::<usize>(cx);
6376 let all_selections_were_entire_line =
6377 clipboard_selections.iter().all(|s| s.is_entire_line);
6378 let first_selection_indent_column =
6379 clipboard_selections.first().map(|s| s.first_line_indent);
6380 if clipboard_selections.len() != old_selections.len() {
6381 clipboard_selections.drain(..);
6382 }
6383
6384 this.buffer.update(cx, |buffer, cx| {
6385 let snapshot = buffer.read(cx);
6386 let mut start_offset = 0;
6387 let mut edits = Vec::new();
6388 let mut original_indent_columns = Vec::new();
6389 let line_mode = this.selections.line_mode;
6390 for (ix, selection) in old_selections.iter().enumerate() {
6391 let to_insert;
6392 let entire_line;
6393 let original_indent_column;
6394 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6395 let end_offset = start_offset + clipboard_selection.len;
6396 to_insert = &clipboard_text[start_offset..end_offset];
6397 entire_line = clipboard_selection.is_entire_line;
6398 start_offset = end_offset + 1;
6399 original_indent_column =
6400 Some(clipboard_selection.first_line_indent);
6401 } else {
6402 to_insert = clipboard_text.as_str();
6403 entire_line = all_selections_were_entire_line;
6404 original_indent_column = first_selection_indent_column
6405 }
6406
6407 // If the corresponding selection was empty when this slice of the
6408 // clipboard text was written, then the entire line containing the
6409 // selection was copied. If this selection is also currently empty,
6410 // then paste the line before the current line of the buffer.
6411 let range = if selection.is_empty() && !line_mode && entire_line {
6412 let column = selection.start.to_point(&snapshot).column as usize;
6413 let line_start = selection.start - column;
6414 line_start..line_start
6415 } else {
6416 selection.range()
6417 };
6418
6419 edits.push((range, to_insert));
6420 original_indent_columns.extend(original_indent_column);
6421 }
6422 drop(snapshot);
6423
6424 buffer.edit(
6425 edits,
6426 Some(AutoindentMode::Block {
6427 original_indent_columns,
6428 }),
6429 cx,
6430 );
6431 });
6432
6433 let selections = this.selections.all::<usize>(cx);
6434 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6435 } else {
6436 this.insert(&clipboard_text, cx);
6437 }
6438 }
6439 });
6440 }
6441
6442 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
6443 if self.read_only(cx) {
6444 return;
6445 }
6446
6447 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
6448 if let Some((selections, _)) = self.selection_history.transaction(tx_id).cloned() {
6449 self.change_selections(None, cx, |s| {
6450 s.select_anchors(selections.to_vec());
6451 });
6452 }
6453 self.request_autoscroll(Autoscroll::fit(), cx);
6454 self.unmark_text(cx);
6455 self.refresh_inline_completion(true, cx);
6456 cx.emit(EditorEvent::Edited);
6457 cx.emit(EditorEvent::TransactionUndone {
6458 transaction_id: tx_id,
6459 });
6460 }
6461 }
6462
6463 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
6464 if self.read_only(cx) {
6465 return;
6466 }
6467
6468 if let Some(tx_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
6469 if let Some((_, Some(selections))) = self.selection_history.transaction(tx_id).cloned()
6470 {
6471 self.change_selections(None, cx, |s| {
6472 s.select_anchors(selections.to_vec());
6473 });
6474 }
6475 self.request_autoscroll(Autoscroll::fit(), cx);
6476 self.unmark_text(cx);
6477 self.refresh_inline_completion(true, cx);
6478 cx.emit(EditorEvent::Edited);
6479 }
6480 }
6481
6482 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
6483 self.buffer
6484 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
6485 }
6486
6487 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
6488 self.buffer
6489 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
6490 }
6491
6492 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
6493 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6494 let line_mode = s.line_mode;
6495 s.move_with(|map, selection| {
6496 let cursor = if selection.is_empty() && !line_mode {
6497 movement::left(map, selection.start)
6498 } else {
6499 selection.start
6500 };
6501 selection.collapse_to(cursor, SelectionGoal::None);
6502 });
6503 })
6504 }
6505
6506 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
6507 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6508 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
6509 })
6510 }
6511
6512 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
6513 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6514 let line_mode = s.line_mode;
6515 s.move_with(|map, selection| {
6516 let cursor = if selection.is_empty() && !line_mode {
6517 movement::right(map, selection.end)
6518 } else {
6519 selection.end
6520 };
6521 selection.collapse_to(cursor, SelectionGoal::None)
6522 });
6523 })
6524 }
6525
6526 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
6527 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6528 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
6529 })
6530 }
6531
6532 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
6533 if self.take_rename(true, cx).is_some() {
6534 return;
6535 }
6536
6537 if matches!(self.mode, EditorMode::SingleLine) {
6538 cx.propagate();
6539 return;
6540 }
6541
6542 let text_layout_details = &self.text_layout_details(cx);
6543 let selection_count = self.selections.count();
6544 let first_selection = self.selections.first_anchor();
6545
6546 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6547 let line_mode = s.line_mode;
6548 s.move_with(|map, selection| {
6549 if !selection.is_empty() && !line_mode {
6550 selection.goal = SelectionGoal::None;
6551 }
6552 let (cursor, goal) = movement::up(
6553 map,
6554 selection.start,
6555 selection.goal,
6556 false,
6557 &text_layout_details,
6558 );
6559 selection.collapse_to(cursor, goal);
6560 });
6561 });
6562
6563 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6564 {
6565 cx.propagate();
6566 }
6567 }
6568
6569 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
6570 if self.take_rename(true, cx).is_some() {
6571 return;
6572 }
6573
6574 if matches!(self.mode, EditorMode::SingleLine) {
6575 cx.propagate();
6576 return;
6577 }
6578
6579 let text_layout_details = &self.text_layout_details(cx);
6580
6581 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6582 let line_mode = s.line_mode;
6583 s.move_with(|map, selection| {
6584 if !selection.is_empty() && !line_mode {
6585 selection.goal = SelectionGoal::None;
6586 }
6587 let (cursor, goal) = movement::up_by_rows(
6588 map,
6589 selection.start,
6590 action.lines,
6591 selection.goal,
6592 false,
6593 &text_layout_details,
6594 );
6595 selection.collapse_to(cursor, goal);
6596 });
6597 })
6598 }
6599
6600 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
6601 if self.take_rename(true, cx).is_some() {
6602 return;
6603 }
6604
6605 if matches!(self.mode, EditorMode::SingleLine) {
6606 cx.propagate();
6607 return;
6608 }
6609
6610 let text_layout_details = &self.text_layout_details(cx);
6611
6612 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6613 let line_mode = s.line_mode;
6614 s.move_with(|map, selection| {
6615 if !selection.is_empty() && !line_mode {
6616 selection.goal = SelectionGoal::None;
6617 }
6618 let (cursor, goal) = movement::down_by_rows(
6619 map,
6620 selection.start,
6621 action.lines,
6622 selection.goal,
6623 false,
6624 &text_layout_details,
6625 );
6626 selection.collapse_to(cursor, goal);
6627 });
6628 })
6629 }
6630
6631 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
6632 let text_layout_details = &self.text_layout_details(cx);
6633 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6634 s.move_heads_with(|map, head, goal| {
6635 movement::down_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6636 })
6637 })
6638 }
6639
6640 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
6641 let text_layout_details = &self.text_layout_details(cx);
6642 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6643 s.move_heads_with(|map, head, goal| {
6644 movement::up_by_rows(map, head, action.lines, goal, false, &text_layout_details)
6645 })
6646 })
6647 }
6648
6649 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
6650 if self.take_rename(true, cx).is_some() {
6651 return;
6652 }
6653
6654 if matches!(self.mode, EditorMode::SingleLine) {
6655 cx.propagate();
6656 return;
6657 }
6658
6659 let row_count = if let Some(row_count) = self.visible_line_count() {
6660 row_count as u32 - 1
6661 } else {
6662 return;
6663 };
6664
6665 let autoscroll = if action.center_cursor {
6666 Autoscroll::center()
6667 } else {
6668 Autoscroll::fit()
6669 };
6670
6671 let text_layout_details = &self.text_layout_details(cx);
6672
6673 self.change_selections(Some(autoscroll), cx, |s| {
6674 let line_mode = s.line_mode;
6675 s.move_with(|map, selection| {
6676 if !selection.is_empty() && !line_mode {
6677 selection.goal = SelectionGoal::None;
6678 }
6679 let (cursor, goal) = movement::up_by_rows(
6680 map,
6681 selection.end,
6682 row_count,
6683 selection.goal,
6684 false,
6685 &text_layout_details,
6686 );
6687 selection.collapse_to(cursor, goal);
6688 });
6689 });
6690 }
6691
6692 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
6693 let text_layout_details = &self.text_layout_details(cx);
6694 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6695 s.move_heads_with(|map, head, goal| {
6696 movement::up(map, head, goal, false, &text_layout_details)
6697 })
6698 })
6699 }
6700
6701 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
6702 self.take_rename(true, cx);
6703
6704 if self.mode == EditorMode::SingleLine {
6705 cx.propagate();
6706 return;
6707 }
6708
6709 let text_layout_details = &self.text_layout_details(cx);
6710 let selection_count = self.selections.count();
6711 let first_selection = self.selections.first_anchor();
6712
6713 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6714 let line_mode = s.line_mode;
6715 s.move_with(|map, selection| {
6716 if !selection.is_empty() && !line_mode {
6717 selection.goal = SelectionGoal::None;
6718 }
6719 let (cursor, goal) = movement::down(
6720 map,
6721 selection.end,
6722 selection.goal,
6723 false,
6724 &text_layout_details,
6725 );
6726 selection.collapse_to(cursor, goal);
6727 });
6728 });
6729
6730 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
6731 {
6732 cx.propagate();
6733 }
6734 }
6735
6736 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
6737 if self.take_rename(true, cx).is_some() {
6738 return;
6739 }
6740
6741 if self
6742 .context_menu
6743 .write()
6744 .as_mut()
6745 .map(|menu| menu.select_last(self.project.as_ref(), cx))
6746 .unwrap_or(false)
6747 {
6748 return;
6749 }
6750
6751 if matches!(self.mode, EditorMode::SingleLine) {
6752 cx.propagate();
6753 return;
6754 }
6755
6756 let row_count = if let Some(row_count) = self.visible_line_count() {
6757 row_count as u32 - 1
6758 } else {
6759 return;
6760 };
6761
6762 let autoscroll = if action.center_cursor {
6763 Autoscroll::center()
6764 } else {
6765 Autoscroll::fit()
6766 };
6767
6768 let text_layout_details = &self.text_layout_details(cx);
6769 self.change_selections(Some(autoscroll), cx, |s| {
6770 let line_mode = s.line_mode;
6771 s.move_with(|map, selection| {
6772 if !selection.is_empty() && !line_mode {
6773 selection.goal = SelectionGoal::None;
6774 }
6775 let (cursor, goal) = movement::down_by_rows(
6776 map,
6777 selection.end,
6778 row_count,
6779 selection.goal,
6780 false,
6781 &text_layout_details,
6782 );
6783 selection.collapse_to(cursor, goal);
6784 });
6785 });
6786 }
6787
6788 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
6789 let text_layout_details = &self.text_layout_details(cx);
6790 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6791 s.move_heads_with(|map, head, goal| {
6792 movement::down(map, head, goal, false, &text_layout_details)
6793 })
6794 });
6795 }
6796
6797 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
6798 if let Some(context_menu) = self.context_menu.write().as_mut() {
6799 context_menu.select_first(self.project.as_ref(), cx);
6800 }
6801 }
6802
6803 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
6804 if let Some(context_menu) = self.context_menu.write().as_mut() {
6805 context_menu.select_prev(self.project.as_ref(), cx);
6806 }
6807 }
6808
6809 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
6810 if let Some(context_menu) = self.context_menu.write().as_mut() {
6811 context_menu.select_next(self.project.as_ref(), cx);
6812 }
6813 }
6814
6815 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
6816 if let Some(context_menu) = self.context_menu.write().as_mut() {
6817 context_menu.select_last(self.project.as_ref(), cx);
6818 }
6819 }
6820
6821 pub fn move_to_previous_word_start(
6822 &mut self,
6823 _: &MoveToPreviousWordStart,
6824 cx: &mut ViewContext<Self>,
6825 ) {
6826 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6827 s.move_cursors_with(|map, head, _| {
6828 (
6829 movement::previous_word_start(map, head),
6830 SelectionGoal::None,
6831 )
6832 });
6833 })
6834 }
6835
6836 pub fn move_to_previous_subword_start(
6837 &mut self,
6838 _: &MoveToPreviousSubwordStart,
6839 cx: &mut ViewContext<Self>,
6840 ) {
6841 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6842 s.move_cursors_with(|map, head, _| {
6843 (
6844 movement::previous_subword_start(map, head),
6845 SelectionGoal::None,
6846 )
6847 });
6848 })
6849 }
6850
6851 pub fn select_to_previous_word_start(
6852 &mut self,
6853 _: &SelectToPreviousWordStart,
6854 cx: &mut ViewContext<Self>,
6855 ) {
6856 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6857 s.move_heads_with(|map, head, _| {
6858 (
6859 movement::previous_word_start(map, head),
6860 SelectionGoal::None,
6861 )
6862 });
6863 })
6864 }
6865
6866 pub fn select_to_previous_subword_start(
6867 &mut self,
6868 _: &SelectToPreviousSubwordStart,
6869 cx: &mut ViewContext<Self>,
6870 ) {
6871 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6872 s.move_heads_with(|map, head, _| {
6873 (
6874 movement::previous_subword_start(map, head),
6875 SelectionGoal::None,
6876 )
6877 });
6878 })
6879 }
6880
6881 pub fn delete_to_previous_word_start(
6882 &mut self,
6883 _: &DeleteToPreviousWordStart,
6884 cx: &mut ViewContext<Self>,
6885 ) {
6886 self.transact(cx, |this, cx| {
6887 this.select_autoclose_pair(cx);
6888 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6889 let line_mode = s.line_mode;
6890 s.move_with(|map, selection| {
6891 if selection.is_empty() && !line_mode {
6892 let cursor = movement::previous_word_start(map, selection.head());
6893 selection.set_head(cursor, SelectionGoal::None);
6894 }
6895 });
6896 });
6897 this.insert("", cx);
6898 });
6899 }
6900
6901 pub fn delete_to_previous_subword_start(
6902 &mut self,
6903 _: &DeleteToPreviousSubwordStart,
6904 cx: &mut ViewContext<Self>,
6905 ) {
6906 self.transact(cx, |this, cx| {
6907 this.select_autoclose_pair(cx);
6908 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6909 let line_mode = s.line_mode;
6910 s.move_with(|map, selection| {
6911 if selection.is_empty() && !line_mode {
6912 let cursor = movement::previous_subword_start(map, selection.head());
6913 selection.set_head(cursor, SelectionGoal::None);
6914 }
6915 });
6916 });
6917 this.insert("", cx);
6918 });
6919 }
6920
6921 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
6922 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6923 s.move_cursors_with(|map, head, _| {
6924 (movement::next_word_end(map, head), SelectionGoal::None)
6925 });
6926 })
6927 }
6928
6929 pub fn move_to_next_subword_end(
6930 &mut self,
6931 _: &MoveToNextSubwordEnd,
6932 cx: &mut ViewContext<Self>,
6933 ) {
6934 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6935 s.move_cursors_with(|map, head, _| {
6936 (movement::next_subword_end(map, head), SelectionGoal::None)
6937 });
6938 })
6939 }
6940
6941 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
6942 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6943 s.move_heads_with(|map, head, _| {
6944 (movement::next_word_end(map, head), SelectionGoal::None)
6945 });
6946 })
6947 }
6948
6949 pub fn select_to_next_subword_end(
6950 &mut self,
6951 _: &SelectToNextSubwordEnd,
6952 cx: &mut ViewContext<Self>,
6953 ) {
6954 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
6955 s.move_heads_with(|map, head, _| {
6956 (movement::next_subword_end(map, head), SelectionGoal::None)
6957 });
6958 })
6959 }
6960
6961 pub fn delete_to_next_word_end(&mut self, _: &DeleteToNextWordEnd, cx: &mut ViewContext<Self>) {
6962 self.transact(cx, |this, cx| {
6963 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6964 let line_mode = s.line_mode;
6965 s.move_with(|map, selection| {
6966 if selection.is_empty() && !line_mode {
6967 let cursor = movement::next_word_end(map, selection.head());
6968 selection.set_head(cursor, SelectionGoal::None);
6969 }
6970 });
6971 });
6972 this.insert("", cx);
6973 });
6974 }
6975
6976 pub fn delete_to_next_subword_end(
6977 &mut self,
6978 _: &DeleteToNextSubwordEnd,
6979 cx: &mut ViewContext<Self>,
6980 ) {
6981 self.transact(cx, |this, cx| {
6982 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6983 s.move_with(|map, selection| {
6984 if selection.is_empty() {
6985 let cursor = movement::next_subword_end(map, selection.head());
6986 selection.set_head(cursor, SelectionGoal::None);
6987 }
6988 });
6989 });
6990 this.insert("", cx);
6991 });
6992 }
6993
6994 pub fn move_to_beginning_of_line(
6995 &mut self,
6996 action: &MoveToBeginningOfLine,
6997 cx: &mut ViewContext<Self>,
6998 ) {
6999 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7000 s.move_cursors_with(|map, head, _| {
7001 (
7002 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7003 SelectionGoal::None,
7004 )
7005 });
7006 })
7007 }
7008
7009 pub fn select_to_beginning_of_line(
7010 &mut self,
7011 action: &SelectToBeginningOfLine,
7012 cx: &mut ViewContext<Self>,
7013 ) {
7014 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7015 s.move_heads_with(|map, head, _| {
7016 (
7017 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7018 SelectionGoal::None,
7019 )
7020 });
7021 });
7022 }
7023
7024 pub fn delete_to_beginning_of_line(
7025 &mut self,
7026 _: &DeleteToBeginningOfLine,
7027 cx: &mut ViewContext<Self>,
7028 ) {
7029 self.transact(cx, |this, cx| {
7030 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7031 s.move_with(|_, selection| {
7032 selection.reversed = true;
7033 });
7034 });
7035
7036 this.select_to_beginning_of_line(
7037 &SelectToBeginningOfLine {
7038 stop_at_soft_wraps: false,
7039 },
7040 cx,
7041 );
7042 this.backspace(&Backspace, cx);
7043 });
7044 }
7045
7046 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7047 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7048 s.move_cursors_with(|map, head, _| {
7049 (
7050 movement::line_end(map, head, action.stop_at_soft_wraps),
7051 SelectionGoal::None,
7052 )
7053 });
7054 })
7055 }
7056
7057 pub fn select_to_end_of_line(
7058 &mut self,
7059 action: &SelectToEndOfLine,
7060 cx: &mut ViewContext<Self>,
7061 ) {
7062 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7063 s.move_heads_with(|map, head, _| {
7064 (
7065 movement::line_end(map, head, action.stop_at_soft_wraps),
7066 SelectionGoal::None,
7067 )
7068 });
7069 })
7070 }
7071
7072 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7073 self.transact(cx, |this, cx| {
7074 this.select_to_end_of_line(
7075 &SelectToEndOfLine {
7076 stop_at_soft_wraps: false,
7077 },
7078 cx,
7079 );
7080 this.delete(&Delete, cx);
7081 });
7082 }
7083
7084 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7085 self.transact(cx, |this, cx| {
7086 this.select_to_end_of_line(
7087 &SelectToEndOfLine {
7088 stop_at_soft_wraps: false,
7089 },
7090 cx,
7091 );
7092 this.cut(&Cut, cx);
7093 });
7094 }
7095
7096 pub fn move_to_start_of_paragraph(
7097 &mut self,
7098 _: &MoveToStartOfParagraph,
7099 cx: &mut ViewContext<Self>,
7100 ) {
7101 if matches!(self.mode, EditorMode::SingleLine) {
7102 cx.propagate();
7103 return;
7104 }
7105
7106 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7107 s.move_with(|map, selection| {
7108 selection.collapse_to(
7109 movement::start_of_paragraph(map, selection.head(), 1),
7110 SelectionGoal::None,
7111 )
7112 });
7113 })
7114 }
7115
7116 pub fn move_to_end_of_paragraph(
7117 &mut self,
7118 _: &MoveToEndOfParagraph,
7119 cx: &mut ViewContext<Self>,
7120 ) {
7121 if matches!(self.mode, EditorMode::SingleLine) {
7122 cx.propagate();
7123 return;
7124 }
7125
7126 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7127 s.move_with(|map, selection| {
7128 selection.collapse_to(
7129 movement::end_of_paragraph(map, selection.head(), 1),
7130 SelectionGoal::None,
7131 )
7132 });
7133 })
7134 }
7135
7136 pub fn select_to_start_of_paragraph(
7137 &mut self,
7138 _: &SelectToStartOfParagraph,
7139 cx: &mut ViewContext<Self>,
7140 ) {
7141 if matches!(self.mode, EditorMode::SingleLine) {
7142 cx.propagate();
7143 return;
7144 }
7145
7146 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7147 s.move_heads_with(|map, head, _| {
7148 (
7149 movement::start_of_paragraph(map, head, 1),
7150 SelectionGoal::None,
7151 )
7152 });
7153 })
7154 }
7155
7156 pub fn select_to_end_of_paragraph(
7157 &mut self,
7158 _: &SelectToEndOfParagraph,
7159 cx: &mut ViewContext<Self>,
7160 ) {
7161 if matches!(self.mode, EditorMode::SingleLine) {
7162 cx.propagate();
7163 return;
7164 }
7165
7166 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7167 s.move_heads_with(|map, head, _| {
7168 (
7169 movement::end_of_paragraph(map, head, 1),
7170 SelectionGoal::None,
7171 )
7172 });
7173 })
7174 }
7175
7176 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7177 if matches!(self.mode, EditorMode::SingleLine) {
7178 cx.propagate();
7179 return;
7180 }
7181
7182 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7183 s.select_ranges(vec![0..0]);
7184 });
7185 }
7186
7187 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7188 let mut selection = self.selections.last::<Point>(cx);
7189 selection.set_head(Point::zero(), SelectionGoal::None);
7190
7191 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7192 s.select(vec![selection]);
7193 });
7194 }
7195
7196 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7197 if matches!(self.mode, EditorMode::SingleLine) {
7198 cx.propagate();
7199 return;
7200 }
7201
7202 let cursor = self.buffer.read(cx).read(cx).len();
7203 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7204 s.select_ranges(vec![cursor..cursor])
7205 });
7206 }
7207
7208 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7209 self.nav_history = nav_history;
7210 }
7211
7212 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7213 self.nav_history.as_ref()
7214 }
7215
7216 fn push_to_nav_history(
7217 &mut self,
7218 cursor_anchor: Anchor,
7219 new_position: Option<Point>,
7220 cx: &mut ViewContext<Self>,
7221 ) {
7222 if let Some(nav_history) = self.nav_history.as_mut() {
7223 let buffer = self.buffer.read(cx).read(cx);
7224 let cursor_position = cursor_anchor.to_point(&buffer);
7225 let scroll_state = self.scroll_manager.anchor();
7226 let scroll_top_row = scroll_state.top_row(&buffer);
7227 drop(buffer);
7228
7229 if let Some(new_position) = new_position {
7230 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7231 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7232 return;
7233 }
7234 }
7235
7236 nav_history.push(
7237 Some(NavigationData {
7238 cursor_anchor,
7239 cursor_position,
7240 scroll_anchor: scroll_state,
7241 scroll_top_row,
7242 }),
7243 cx,
7244 );
7245 }
7246 }
7247
7248 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7249 let buffer = self.buffer.read(cx).snapshot(cx);
7250 let mut selection = self.selections.first::<usize>(cx);
7251 selection.set_head(buffer.len(), SelectionGoal::None);
7252 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7253 s.select(vec![selection]);
7254 });
7255 }
7256
7257 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7258 let end = self.buffer.read(cx).read(cx).len();
7259 self.change_selections(None, cx, |s| {
7260 s.select_ranges(vec![0..end]);
7261 });
7262 }
7263
7264 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7265 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7266 let mut selections = self.selections.all::<Point>(cx);
7267 let max_point = display_map.buffer_snapshot.max_point();
7268 for selection in &mut selections {
7269 let rows = selection.spanned_rows(true, &display_map);
7270 selection.start = Point::new(rows.start.0, 0);
7271 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7272 selection.reversed = false;
7273 }
7274 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7275 s.select(selections);
7276 });
7277 }
7278
7279 pub fn split_selection_into_lines(
7280 &mut self,
7281 _: &SplitSelectionIntoLines,
7282 cx: &mut ViewContext<Self>,
7283 ) {
7284 let mut to_unfold = Vec::new();
7285 let mut new_selection_ranges = Vec::new();
7286 {
7287 let selections = self.selections.all::<Point>(cx);
7288 let buffer = self.buffer.read(cx).read(cx);
7289 for selection in selections {
7290 for row in selection.start.row..selection.end.row {
7291 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7292 new_selection_ranges.push(cursor..cursor);
7293 }
7294 new_selection_ranges.push(selection.end..selection.end);
7295 to_unfold.push(selection.start..selection.end);
7296 }
7297 }
7298 self.unfold_ranges(to_unfold, true, true, cx);
7299 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7300 s.select_ranges(new_selection_ranges);
7301 });
7302 }
7303
7304 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7305 self.add_selection(true, cx);
7306 }
7307
7308 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7309 self.add_selection(false, cx);
7310 }
7311
7312 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7313 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7314 let mut selections = self.selections.all::<Point>(cx);
7315 let text_layout_details = self.text_layout_details(cx);
7316 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7317 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7318 let range = oldest_selection.display_range(&display_map).sorted();
7319
7320 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7321 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7322 let positions = start_x.min(end_x)..start_x.max(end_x);
7323
7324 selections.clear();
7325 let mut stack = Vec::new();
7326 for row in range.start.row().0..=range.end.row().0 {
7327 if let Some(selection) = self.selections.build_columnar_selection(
7328 &display_map,
7329 DisplayRow(row),
7330 &positions,
7331 oldest_selection.reversed,
7332 &text_layout_details,
7333 ) {
7334 stack.push(selection.id);
7335 selections.push(selection);
7336 }
7337 }
7338
7339 if above {
7340 stack.reverse();
7341 }
7342
7343 AddSelectionsState { above, stack }
7344 });
7345
7346 let last_added_selection = *state.stack.last().unwrap();
7347 let mut new_selections = Vec::new();
7348 if above == state.above {
7349 let end_row = if above {
7350 DisplayRow(0)
7351 } else {
7352 display_map.max_point().row()
7353 };
7354
7355 'outer: for selection in selections {
7356 if selection.id == last_added_selection {
7357 let range = selection.display_range(&display_map).sorted();
7358 debug_assert_eq!(range.start.row(), range.end.row());
7359 let mut row = range.start.row();
7360 let positions =
7361 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7362 px(start)..px(end)
7363 } else {
7364 let start_x =
7365 display_map.x_for_display_point(range.start, &text_layout_details);
7366 let end_x =
7367 display_map.x_for_display_point(range.end, &text_layout_details);
7368 start_x.min(end_x)..start_x.max(end_x)
7369 };
7370
7371 while row != end_row {
7372 if above {
7373 row.0 -= 1;
7374 } else {
7375 row.0 += 1;
7376 }
7377
7378 if let Some(new_selection) = self.selections.build_columnar_selection(
7379 &display_map,
7380 row,
7381 &positions,
7382 selection.reversed,
7383 &text_layout_details,
7384 ) {
7385 state.stack.push(new_selection.id);
7386 if above {
7387 new_selections.push(new_selection);
7388 new_selections.push(selection);
7389 } else {
7390 new_selections.push(selection);
7391 new_selections.push(new_selection);
7392 }
7393
7394 continue 'outer;
7395 }
7396 }
7397 }
7398
7399 new_selections.push(selection);
7400 }
7401 } else {
7402 new_selections = selections;
7403 new_selections.retain(|s| s.id != last_added_selection);
7404 state.stack.pop();
7405 }
7406
7407 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7408 s.select(new_selections);
7409 });
7410 if state.stack.len() > 1 {
7411 self.add_selections_state = Some(state);
7412 }
7413 }
7414
7415 pub fn select_next_match_internal(
7416 &mut self,
7417 display_map: &DisplaySnapshot,
7418 replace_newest: bool,
7419 autoscroll: Option<Autoscroll>,
7420 cx: &mut ViewContext<Self>,
7421 ) -> Result<()> {
7422 fn select_next_match_ranges(
7423 this: &mut Editor,
7424 range: Range<usize>,
7425 replace_newest: bool,
7426 auto_scroll: Option<Autoscroll>,
7427 cx: &mut ViewContext<Editor>,
7428 ) {
7429 this.unfold_ranges([range.clone()], false, true, cx);
7430 this.change_selections(auto_scroll, cx, |s| {
7431 if replace_newest {
7432 s.delete(s.newest_anchor().id);
7433 }
7434 s.insert_range(range.clone());
7435 });
7436 }
7437
7438 let buffer = &display_map.buffer_snapshot;
7439 let mut selections = self.selections.all::<usize>(cx);
7440 if let Some(mut select_next_state) = self.select_next_state.take() {
7441 let query = &select_next_state.query;
7442 if !select_next_state.done {
7443 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7444 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7445 let mut next_selected_range = None;
7446
7447 let bytes_after_last_selection =
7448 buffer.bytes_in_range(last_selection.end..buffer.len());
7449 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
7450 let query_matches = query
7451 .stream_find_iter(bytes_after_last_selection)
7452 .map(|result| (last_selection.end, result))
7453 .chain(
7454 query
7455 .stream_find_iter(bytes_before_first_selection)
7456 .map(|result| (0, result)),
7457 );
7458
7459 for (start_offset, query_match) in query_matches {
7460 let query_match = query_match.unwrap(); // can only fail due to I/O
7461 let offset_range =
7462 start_offset + query_match.start()..start_offset + query_match.end();
7463 let display_range = offset_range.start.to_display_point(&display_map)
7464 ..offset_range.end.to_display_point(&display_map);
7465
7466 if !select_next_state.wordwise
7467 || (!movement::is_inside_word(&display_map, display_range.start)
7468 && !movement::is_inside_word(&display_map, display_range.end))
7469 {
7470 // TODO: This is n^2, because we might check all the selections
7471 if !selections
7472 .iter()
7473 .any(|selection| selection.range().overlaps(&offset_range))
7474 {
7475 next_selected_range = Some(offset_range);
7476 break;
7477 }
7478 }
7479 }
7480
7481 if let Some(next_selected_range) = next_selected_range {
7482 select_next_match_ranges(
7483 self,
7484 next_selected_range,
7485 replace_newest,
7486 autoscroll,
7487 cx,
7488 );
7489 } else {
7490 select_next_state.done = true;
7491 }
7492 }
7493
7494 self.select_next_state = Some(select_next_state);
7495 } else {
7496 let mut only_carets = true;
7497 let mut same_text_selected = true;
7498 let mut selected_text = None;
7499
7500 let mut selections_iter = selections.iter().peekable();
7501 while let Some(selection) = selections_iter.next() {
7502 if selection.start != selection.end {
7503 only_carets = false;
7504 }
7505
7506 if same_text_selected {
7507 if selected_text.is_none() {
7508 selected_text =
7509 Some(buffer.text_for_range(selection.range()).collect::<String>());
7510 }
7511
7512 if let Some(next_selection) = selections_iter.peek() {
7513 if next_selection.range().len() == selection.range().len() {
7514 let next_selected_text = buffer
7515 .text_for_range(next_selection.range())
7516 .collect::<String>();
7517 if Some(next_selected_text) != selected_text {
7518 same_text_selected = false;
7519 selected_text = None;
7520 }
7521 } else {
7522 same_text_selected = false;
7523 selected_text = None;
7524 }
7525 }
7526 }
7527 }
7528
7529 if only_carets {
7530 for selection in &mut selections {
7531 let word_range = movement::surrounding_word(
7532 &display_map,
7533 selection.start.to_display_point(&display_map),
7534 );
7535 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7536 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7537 selection.goal = SelectionGoal::None;
7538 selection.reversed = false;
7539 select_next_match_ranges(
7540 self,
7541 selection.start..selection.end,
7542 replace_newest,
7543 autoscroll,
7544 cx,
7545 );
7546 }
7547
7548 if selections.len() == 1 {
7549 let selection = selections
7550 .last()
7551 .expect("ensured that there's only one selection");
7552 let query = buffer
7553 .text_for_range(selection.start..selection.end)
7554 .collect::<String>();
7555 let is_empty = query.is_empty();
7556 let select_state = SelectNextState {
7557 query: AhoCorasick::new(&[query])?,
7558 wordwise: true,
7559 done: is_empty,
7560 };
7561 self.select_next_state = Some(select_state);
7562 } else {
7563 self.select_next_state = None;
7564 }
7565 } else if let Some(selected_text) = selected_text {
7566 self.select_next_state = Some(SelectNextState {
7567 query: AhoCorasick::new(&[selected_text])?,
7568 wordwise: false,
7569 done: false,
7570 });
7571 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
7572 }
7573 }
7574 Ok(())
7575 }
7576
7577 pub fn select_all_matches(
7578 &mut self,
7579 _action: &SelectAllMatches,
7580 cx: &mut ViewContext<Self>,
7581 ) -> Result<()> {
7582 self.push_to_selection_history();
7583 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7584
7585 self.select_next_match_internal(&display_map, false, None, cx)?;
7586 let Some(select_next_state) = self.select_next_state.as_mut() else {
7587 return Ok(());
7588 };
7589 if select_next_state.done {
7590 return Ok(());
7591 }
7592
7593 let mut new_selections = self.selections.all::<usize>(cx);
7594
7595 let buffer = &display_map.buffer_snapshot;
7596 let query_matches = select_next_state
7597 .query
7598 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
7599
7600 for query_match in query_matches {
7601 let query_match = query_match.unwrap(); // can only fail due to I/O
7602 let offset_range = query_match.start()..query_match.end();
7603 let display_range = offset_range.start.to_display_point(&display_map)
7604 ..offset_range.end.to_display_point(&display_map);
7605
7606 if !select_next_state.wordwise
7607 || (!movement::is_inside_word(&display_map, display_range.start)
7608 && !movement::is_inside_word(&display_map, display_range.end))
7609 {
7610 self.selections.change_with(cx, |selections| {
7611 new_selections.push(Selection {
7612 id: selections.new_selection_id(),
7613 start: offset_range.start,
7614 end: offset_range.end,
7615 reversed: false,
7616 goal: SelectionGoal::None,
7617 });
7618 });
7619 }
7620 }
7621
7622 new_selections.sort_by_key(|selection| selection.start);
7623 let mut ix = 0;
7624 while ix + 1 < new_selections.len() {
7625 let current_selection = &new_selections[ix];
7626 let next_selection = &new_selections[ix + 1];
7627 if current_selection.range().overlaps(&next_selection.range()) {
7628 if current_selection.id < next_selection.id {
7629 new_selections.remove(ix + 1);
7630 } else {
7631 new_selections.remove(ix);
7632 }
7633 } else {
7634 ix += 1;
7635 }
7636 }
7637
7638 select_next_state.done = true;
7639 self.unfold_ranges(
7640 new_selections.iter().map(|selection| selection.range()),
7641 false,
7642 false,
7643 cx,
7644 );
7645 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
7646 selections.select(new_selections)
7647 });
7648
7649 Ok(())
7650 }
7651
7652 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
7653 self.push_to_selection_history();
7654 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7655 self.select_next_match_internal(
7656 &display_map,
7657 action.replace_newest,
7658 Some(Autoscroll::newest()),
7659 cx,
7660 )?;
7661 Ok(())
7662 }
7663
7664 pub fn select_previous(
7665 &mut self,
7666 action: &SelectPrevious,
7667 cx: &mut ViewContext<Self>,
7668 ) -> Result<()> {
7669 self.push_to_selection_history();
7670 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7671 let buffer = &display_map.buffer_snapshot;
7672 let mut selections = self.selections.all::<usize>(cx);
7673 if let Some(mut select_prev_state) = self.select_prev_state.take() {
7674 let query = &select_prev_state.query;
7675 if !select_prev_state.done {
7676 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
7677 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
7678 let mut next_selected_range = None;
7679 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
7680 let bytes_before_last_selection =
7681 buffer.reversed_bytes_in_range(0..last_selection.start);
7682 let bytes_after_first_selection =
7683 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
7684 let query_matches = query
7685 .stream_find_iter(bytes_before_last_selection)
7686 .map(|result| (last_selection.start, result))
7687 .chain(
7688 query
7689 .stream_find_iter(bytes_after_first_selection)
7690 .map(|result| (buffer.len(), result)),
7691 );
7692 for (end_offset, query_match) in query_matches {
7693 let query_match = query_match.unwrap(); // can only fail due to I/O
7694 let offset_range =
7695 end_offset - query_match.end()..end_offset - query_match.start();
7696 let display_range = offset_range.start.to_display_point(&display_map)
7697 ..offset_range.end.to_display_point(&display_map);
7698
7699 if !select_prev_state.wordwise
7700 || (!movement::is_inside_word(&display_map, display_range.start)
7701 && !movement::is_inside_word(&display_map, display_range.end))
7702 {
7703 next_selected_range = Some(offset_range);
7704 break;
7705 }
7706 }
7707
7708 if let Some(next_selected_range) = next_selected_range {
7709 self.unfold_ranges([next_selected_range.clone()], false, true, cx);
7710 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7711 if action.replace_newest {
7712 s.delete(s.newest_anchor().id);
7713 }
7714 s.insert_range(next_selected_range);
7715 });
7716 } else {
7717 select_prev_state.done = true;
7718 }
7719 }
7720
7721 self.select_prev_state = Some(select_prev_state);
7722 } else {
7723 let mut only_carets = true;
7724 let mut same_text_selected = true;
7725 let mut selected_text = None;
7726
7727 let mut selections_iter = selections.iter().peekable();
7728 while let Some(selection) = selections_iter.next() {
7729 if selection.start != selection.end {
7730 only_carets = false;
7731 }
7732
7733 if same_text_selected {
7734 if selected_text.is_none() {
7735 selected_text =
7736 Some(buffer.text_for_range(selection.range()).collect::<String>());
7737 }
7738
7739 if let Some(next_selection) = selections_iter.peek() {
7740 if next_selection.range().len() == selection.range().len() {
7741 let next_selected_text = buffer
7742 .text_for_range(next_selection.range())
7743 .collect::<String>();
7744 if Some(next_selected_text) != selected_text {
7745 same_text_selected = false;
7746 selected_text = None;
7747 }
7748 } else {
7749 same_text_selected = false;
7750 selected_text = None;
7751 }
7752 }
7753 }
7754 }
7755
7756 if only_carets {
7757 for selection in &mut selections {
7758 let word_range = movement::surrounding_word(
7759 &display_map,
7760 selection.start.to_display_point(&display_map),
7761 );
7762 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
7763 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
7764 selection.goal = SelectionGoal::None;
7765 selection.reversed = false;
7766 }
7767 if selections.len() == 1 {
7768 let selection = selections
7769 .last()
7770 .expect("ensured that there's only one selection");
7771 let query = buffer
7772 .text_for_range(selection.start..selection.end)
7773 .collect::<String>();
7774 let is_empty = query.is_empty();
7775 let select_state = SelectNextState {
7776 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
7777 wordwise: true,
7778 done: is_empty,
7779 };
7780 self.select_prev_state = Some(select_state);
7781 } else {
7782 self.select_prev_state = None;
7783 }
7784
7785 self.unfold_ranges(
7786 selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
7787 false,
7788 true,
7789 cx,
7790 );
7791 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
7792 s.select(selections);
7793 });
7794 } else if let Some(selected_text) = selected_text {
7795 self.select_prev_state = Some(SelectNextState {
7796 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
7797 wordwise: false,
7798 done: false,
7799 });
7800 self.select_previous(action, cx)?;
7801 }
7802 }
7803 Ok(())
7804 }
7805
7806 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
7807 let text_layout_details = &self.text_layout_details(cx);
7808 self.transact(cx, |this, cx| {
7809 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
7810 let mut edits = Vec::new();
7811 let mut selection_edit_ranges = Vec::new();
7812 let mut last_toggled_row = None;
7813 let snapshot = this.buffer.read(cx).read(cx);
7814 let empty_str: Arc<str> = "".into();
7815 let mut suffixes_inserted = Vec::new();
7816
7817 fn comment_prefix_range(
7818 snapshot: &MultiBufferSnapshot,
7819 row: MultiBufferRow,
7820 comment_prefix: &str,
7821 comment_prefix_whitespace: &str,
7822 ) -> Range<Point> {
7823 let start = Point::new(row.0, snapshot.indent_size_for_line(row).len);
7824
7825 let mut line_bytes = snapshot
7826 .bytes_in_range(start..snapshot.max_point())
7827 .flatten()
7828 .copied();
7829
7830 // If this line currently begins with the line comment prefix, then record
7831 // the range containing the prefix.
7832 if line_bytes
7833 .by_ref()
7834 .take(comment_prefix.len())
7835 .eq(comment_prefix.bytes())
7836 {
7837 // Include any whitespace that matches the comment prefix.
7838 let matching_whitespace_len = line_bytes
7839 .zip(comment_prefix_whitespace.bytes())
7840 .take_while(|(a, b)| a == b)
7841 .count() as u32;
7842 let end = Point::new(
7843 start.row,
7844 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
7845 );
7846 start..end
7847 } else {
7848 start..start
7849 }
7850 }
7851
7852 fn comment_suffix_range(
7853 snapshot: &MultiBufferSnapshot,
7854 row: MultiBufferRow,
7855 comment_suffix: &str,
7856 comment_suffix_has_leading_space: bool,
7857 ) -> Range<Point> {
7858 let end = Point::new(row.0, snapshot.line_len(row));
7859 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
7860
7861 let mut line_end_bytes = snapshot
7862 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
7863 .flatten()
7864 .copied();
7865
7866 let leading_space_len = if suffix_start_column > 0
7867 && line_end_bytes.next() == Some(b' ')
7868 && comment_suffix_has_leading_space
7869 {
7870 1
7871 } else {
7872 0
7873 };
7874
7875 // If this line currently begins with the line comment prefix, then record
7876 // the range containing the prefix.
7877 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
7878 let start = Point::new(end.row, suffix_start_column - leading_space_len);
7879 start..end
7880 } else {
7881 end..end
7882 }
7883 }
7884
7885 // TODO: Handle selections that cross excerpts
7886 for selection in &mut selections {
7887 let start_column = snapshot
7888 .indent_size_for_line(MultiBufferRow(selection.start.row))
7889 .len;
7890 let language = if let Some(language) =
7891 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
7892 {
7893 language
7894 } else {
7895 continue;
7896 };
7897
7898 selection_edit_ranges.clear();
7899
7900 // If multiple selections contain a given row, avoid processing that
7901 // row more than once.
7902 let mut start_row = MultiBufferRow(selection.start.row);
7903 if last_toggled_row == Some(start_row) {
7904 start_row = start_row.next_row();
7905 }
7906 let end_row =
7907 if selection.end.row > selection.start.row && selection.end.column == 0 {
7908 MultiBufferRow(selection.end.row - 1)
7909 } else {
7910 MultiBufferRow(selection.end.row)
7911 };
7912 last_toggled_row = Some(end_row);
7913
7914 if start_row > end_row {
7915 continue;
7916 }
7917
7918 // If the language has line comments, toggle those.
7919 let full_comment_prefixes = language.line_comment_prefixes();
7920 if !full_comment_prefixes.is_empty() {
7921 let first_prefix = full_comment_prefixes
7922 .first()
7923 .expect("prefixes is non-empty");
7924 let prefix_trimmed_lengths = full_comment_prefixes
7925 .iter()
7926 .map(|p| p.trim_end_matches(' ').len())
7927 .collect::<SmallVec<[usize; 4]>>();
7928
7929 let mut all_selection_lines_are_comments = true;
7930
7931 for row in start_row.0..=end_row.0 {
7932 let row = MultiBufferRow(row);
7933 if start_row < end_row && snapshot.is_line_blank(row) {
7934 continue;
7935 }
7936
7937 let prefix_range = full_comment_prefixes
7938 .iter()
7939 .zip(prefix_trimmed_lengths.iter().copied())
7940 .map(|(prefix, trimmed_prefix_len)| {
7941 comment_prefix_range(
7942 snapshot.deref(),
7943 row,
7944 &prefix[..trimmed_prefix_len],
7945 &prefix[trimmed_prefix_len..],
7946 )
7947 })
7948 .max_by_key(|range| range.end.column - range.start.column)
7949 .expect("prefixes is non-empty");
7950
7951 if prefix_range.is_empty() {
7952 all_selection_lines_are_comments = false;
7953 }
7954
7955 selection_edit_ranges.push(prefix_range);
7956 }
7957
7958 if all_selection_lines_are_comments {
7959 edits.extend(
7960 selection_edit_ranges
7961 .iter()
7962 .cloned()
7963 .map(|range| (range, empty_str.clone())),
7964 );
7965 } else {
7966 let min_column = selection_edit_ranges
7967 .iter()
7968 .map(|range| range.start.column)
7969 .min()
7970 .unwrap_or(0);
7971 edits.extend(selection_edit_ranges.iter().map(|range| {
7972 let position = Point::new(range.start.row, min_column);
7973 (position..position, first_prefix.clone())
7974 }));
7975 }
7976 } else if let Some((full_comment_prefix, comment_suffix)) =
7977 language.block_comment_delimiters()
7978 {
7979 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
7980 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
7981 let prefix_range = comment_prefix_range(
7982 snapshot.deref(),
7983 start_row,
7984 comment_prefix,
7985 comment_prefix_whitespace,
7986 );
7987 let suffix_range = comment_suffix_range(
7988 snapshot.deref(),
7989 end_row,
7990 comment_suffix.trim_start_matches(' '),
7991 comment_suffix.starts_with(' '),
7992 );
7993
7994 if prefix_range.is_empty() || suffix_range.is_empty() {
7995 edits.push((
7996 prefix_range.start..prefix_range.start,
7997 full_comment_prefix.clone(),
7998 ));
7999 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8000 suffixes_inserted.push((end_row, comment_suffix.len()));
8001 } else {
8002 edits.push((prefix_range, empty_str.clone()));
8003 edits.push((suffix_range, empty_str.clone()));
8004 }
8005 } else {
8006 continue;
8007 }
8008 }
8009
8010 drop(snapshot);
8011 this.buffer.update(cx, |buffer, cx| {
8012 buffer.edit(edits, None, cx);
8013 });
8014
8015 // Adjust selections so that they end before any comment suffixes that
8016 // were inserted.
8017 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8018 let mut selections = this.selections.all::<Point>(cx);
8019 let snapshot = this.buffer.read(cx).read(cx);
8020 for selection in &mut selections {
8021 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8022 match row.cmp(&MultiBufferRow(selection.end.row)) {
8023 Ordering::Less => {
8024 suffixes_inserted.next();
8025 continue;
8026 }
8027 Ordering::Greater => break,
8028 Ordering::Equal => {
8029 if selection.end.column == snapshot.line_len(row) {
8030 if selection.is_empty() {
8031 selection.start.column -= suffix_len as u32;
8032 }
8033 selection.end.column -= suffix_len as u32;
8034 }
8035 break;
8036 }
8037 }
8038 }
8039 }
8040
8041 drop(snapshot);
8042 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8043
8044 let selections = this.selections.all::<Point>(cx);
8045 let selections_on_single_row = selections.windows(2).all(|selections| {
8046 selections[0].start.row == selections[1].start.row
8047 && selections[0].end.row == selections[1].end.row
8048 && selections[0].start.row == selections[0].end.row
8049 });
8050 let selections_selecting = selections
8051 .iter()
8052 .any(|selection| selection.start != selection.end);
8053 let advance_downwards = action.advance_downwards
8054 && selections_on_single_row
8055 && !selections_selecting
8056 && this.mode != EditorMode::SingleLine;
8057
8058 if advance_downwards {
8059 let snapshot = this.buffer.read(cx).snapshot(cx);
8060
8061 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8062 s.move_cursors_with(|display_snapshot, display_point, _| {
8063 let mut point = display_point.to_point(display_snapshot);
8064 point.row += 1;
8065 point = snapshot.clip_point(point, Bias::Left);
8066 let display_point = point.to_display_point(display_snapshot);
8067 let goal = SelectionGoal::HorizontalPosition(
8068 display_snapshot
8069 .x_for_display_point(display_point, &text_layout_details)
8070 .into(),
8071 );
8072 (display_point, goal)
8073 })
8074 });
8075 }
8076 });
8077 }
8078
8079 pub fn select_larger_syntax_node(
8080 &mut self,
8081 _: &SelectLargerSyntaxNode,
8082 cx: &mut ViewContext<Self>,
8083 ) {
8084 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8085 let buffer = self.buffer.read(cx).snapshot(cx);
8086 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8087
8088 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8089 let mut selected_larger_node = false;
8090 let new_selections = old_selections
8091 .iter()
8092 .map(|selection| {
8093 let old_range = selection.start..selection.end;
8094 let mut new_range = old_range.clone();
8095 while let Some(containing_range) =
8096 buffer.range_for_syntax_ancestor(new_range.clone())
8097 {
8098 new_range = containing_range;
8099 if !display_map.intersects_fold(new_range.start)
8100 && !display_map.intersects_fold(new_range.end)
8101 {
8102 break;
8103 }
8104 }
8105
8106 selected_larger_node |= new_range != old_range;
8107 Selection {
8108 id: selection.id,
8109 start: new_range.start,
8110 end: new_range.end,
8111 goal: SelectionGoal::None,
8112 reversed: selection.reversed,
8113 }
8114 })
8115 .collect::<Vec<_>>();
8116
8117 if selected_larger_node {
8118 stack.push(old_selections);
8119 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8120 s.select(new_selections);
8121 });
8122 }
8123 self.select_larger_syntax_node_stack = stack;
8124 }
8125
8126 pub fn select_smaller_syntax_node(
8127 &mut self,
8128 _: &SelectSmallerSyntaxNode,
8129 cx: &mut ViewContext<Self>,
8130 ) {
8131 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8132 if let Some(selections) = stack.pop() {
8133 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8134 s.select(selections.to_vec());
8135 });
8136 }
8137 self.select_larger_syntax_node_stack = stack;
8138 }
8139
8140 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8141 let project = self.project.clone();
8142 cx.spawn(|this, mut cx| async move {
8143 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8144 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8145 }) else {
8146 return;
8147 };
8148
8149 let Some(project) = project else {
8150 return;
8151 };
8152
8153 let hide_runnables = project
8154 .update(&mut cx, |project, cx| {
8155 // Do not display any test indicators in non-dev server remote projects.
8156 project.is_remote() && project.ssh_connection_string(cx).is_none()
8157 })
8158 .unwrap_or(true);
8159 if hide_runnables {
8160 return;
8161 }
8162 let new_rows =
8163 cx.background_executor()
8164 .spawn({
8165 let snapshot = display_snapshot.clone();
8166 async move {
8167 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8168 }
8169 })
8170 .await;
8171 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8172
8173 this.update(&mut cx, |this, _| {
8174 this.clear_tasks();
8175 for (key, value) in rows {
8176 this.insert_tasks(key, value);
8177 }
8178 })
8179 .ok();
8180 })
8181 }
8182 fn fetch_runnable_ranges(
8183 snapshot: &DisplaySnapshot,
8184 range: Range<Anchor>,
8185 ) -> Vec<language::RunnableRange> {
8186 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8187 }
8188
8189 fn runnable_rows(
8190 project: Model<Project>,
8191 snapshot: DisplaySnapshot,
8192 runnable_ranges: Vec<RunnableRange>,
8193 mut cx: AsyncWindowContext,
8194 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8195 runnable_ranges
8196 .into_iter()
8197 .filter_map(|mut runnable| {
8198 let tasks = cx
8199 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8200 .ok()?;
8201 if tasks.is_empty() {
8202 return None;
8203 }
8204
8205 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8206
8207 let row = snapshot
8208 .buffer_snapshot
8209 .buffer_line_for_row(MultiBufferRow(point.row))?
8210 .1
8211 .start
8212 .row;
8213
8214 let context_range =
8215 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8216 Some((
8217 (runnable.buffer_id, row),
8218 RunnableTasks {
8219 templates: tasks,
8220 offset: MultiBufferOffset(runnable.run_range.start),
8221 context_range,
8222 column: point.column,
8223 extra_variables: runnable.extra_captures,
8224 },
8225 ))
8226 })
8227 .collect()
8228 }
8229
8230 fn templates_with_tags(
8231 project: &Model<Project>,
8232 runnable: &mut Runnable,
8233 cx: &WindowContext<'_>,
8234 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8235 let (inventory, worktree_id) = project.read_with(cx, |project, cx| {
8236 let worktree_id = project
8237 .buffer_for_id(runnable.buffer)
8238 .and_then(|buffer| buffer.read(cx).file())
8239 .map(|file| WorktreeId::from_usize(file.worktree_id()));
8240
8241 (project.task_inventory().clone(), worktree_id)
8242 });
8243
8244 let inventory = inventory.read(cx);
8245 let tags = mem::take(&mut runnable.tags);
8246 let mut tags: Vec<_> = tags
8247 .into_iter()
8248 .flat_map(|tag| {
8249 let tag = tag.0.clone();
8250 inventory
8251 .list_tasks(Some(runnable.language.clone()), worktree_id)
8252 .into_iter()
8253 .filter(move |(_, template)| {
8254 template.tags.iter().any(|source_tag| source_tag == &tag)
8255 })
8256 })
8257 .sorted_by_key(|(kind, _)| kind.to_owned())
8258 .collect();
8259 if let Some((leading_tag_source, _)) = tags.first() {
8260 // Strongest source wins; if we have worktree tag binding, prefer that to
8261 // global and language bindings;
8262 // if we have a global binding, prefer that to language binding.
8263 let first_mismatch = tags
8264 .iter()
8265 .position(|(tag_source, _)| tag_source != leading_tag_source);
8266 if let Some(index) = first_mismatch {
8267 tags.truncate(index);
8268 }
8269 }
8270
8271 tags
8272 }
8273
8274 pub fn move_to_enclosing_bracket(
8275 &mut self,
8276 _: &MoveToEnclosingBracket,
8277 cx: &mut ViewContext<Self>,
8278 ) {
8279 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8280 s.move_offsets_with(|snapshot, selection| {
8281 let Some(enclosing_bracket_ranges) =
8282 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
8283 else {
8284 return;
8285 };
8286
8287 let mut best_length = usize::MAX;
8288 let mut best_inside = false;
8289 let mut best_in_bracket_range = false;
8290 let mut best_destination = None;
8291 for (open, close) in enclosing_bracket_ranges {
8292 let close = close.to_inclusive();
8293 let length = close.end() - open.start;
8294 let inside = selection.start >= open.end && selection.end <= *close.start();
8295 let in_bracket_range = open.to_inclusive().contains(&selection.head())
8296 || close.contains(&selection.head());
8297
8298 // If best is next to a bracket and current isn't, skip
8299 if !in_bracket_range && best_in_bracket_range {
8300 continue;
8301 }
8302
8303 // Prefer smaller lengths unless best is inside and current isn't
8304 if length > best_length && (best_inside || !inside) {
8305 continue;
8306 }
8307
8308 best_length = length;
8309 best_inside = inside;
8310 best_in_bracket_range = in_bracket_range;
8311 best_destination = Some(
8312 if close.contains(&selection.start) && close.contains(&selection.end) {
8313 if inside {
8314 open.end
8315 } else {
8316 open.start
8317 }
8318 } else {
8319 if inside {
8320 *close.start()
8321 } else {
8322 *close.end()
8323 }
8324 },
8325 );
8326 }
8327
8328 if let Some(destination) = best_destination {
8329 selection.collapse_to(destination, SelectionGoal::None);
8330 }
8331 })
8332 });
8333 }
8334
8335 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
8336 self.end_selection(cx);
8337 self.selection_history.mode = SelectionHistoryMode::Undoing;
8338 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
8339 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8340 self.select_next_state = entry.select_next_state;
8341 self.select_prev_state = entry.select_prev_state;
8342 self.add_selections_state = entry.add_selections_state;
8343 self.request_autoscroll(Autoscroll::newest(), cx);
8344 }
8345 self.selection_history.mode = SelectionHistoryMode::Normal;
8346 }
8347
8348 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
8349 self.end_selection(cx);
8350 self.selection_history.mode = SelectionHistoryMode::Redoing;
8351 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
8352 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
8353 self.select_next_state = entry.select_next_state;
8354 self.select_prev_state = entry.select_prev_state;
8355 self.add_selections_state = entry.add_selections_state;
8356 self.request_autoscroll(Autoscroll::newest(), cx);
8357 }
8358 self.selection_history.mode = SelectionHistoryMode::Normal;
8359 }
8360
8361 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
8362 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
8363 }
8364
8365 pub fn expand_excerpts_down(
8366 &mut self,
8367 action: &ExpandExcerptsDown,
8368 cx: &mut ViewContext<Self>,
8369 ) {
8370 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
8371 }
8372
8373 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
8374 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
8375 }
8376
8377 pub fn expand_excerpts_for_direction(
8378 &mut self,
8379 lines: u32,
8380 direction: ExpandExcerptDirection,
8381 cx: &mut ViewContext<Self>,
8382 ) {
8383 let selections = self.selections.disjoint_anchors();
8384
8385 let lines = if lines == 0 {
8386 EditorSettings::get_global(cx).expand_excerpt_lines
8387 } else {
8388 lines
8389 };
8390
8391 self.buffer.update(cx, |buffer, cx| {
8392 buffer.expand_excerpts(
8393 selections
8394 .into_iter()
8395 .map(|selection| selection.head().excerpt_id)
8396 .dedup(),
8397 lines,
8398 direction,
8399 cx,
8400 )
8401 })
8402 }
8403
8404 pub fn expand_excerpt(
8405 &mut self,
8406 excerpt: ExcerptId,
8407 direction: ExpandExcerptDirection,
8408 cx: &mut ViewContext<Self>,
8409 ) {
8410 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
8411 self.buffer.update(cx, |buffer, cx| {
8412 buffer.expand_excerpts([excerpt], lines, direction, cx)
8413 })
8414 }
8415
8416 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
8417 self.go_to_diagnostic_impl(Direction::Next, cx)
8418 }
8419
8420 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
8421 self.go_to_diagnostic_impl(Direction::Prev, cx)
8422 }
8423
8424 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
8425 let buffer = self.buffer.read(cx).snapshot(cx);
8426 let selection = self.selections.newest::<usize>(cx);
8427
8428 // If there is an active Diagnostic Popover jump to its diagnostic instead.
8429 if direction == Direction::Next {
8430 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
8431 let (group_id, jump_to) = popover.activation_info();
8432 if self.activate_diagnostics(group_id, cx) {
8433 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8434 let mut new_selection = s.newest_anchor().clone();
8435 new_selection.collapse_to(jump_to, SelectionGoal::None);
8436 s.select_anchors(vec![new_selection.clone()]);
8437 });
8438 }
8439 return;
8440 }
8441 }
8442
8443 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
8444 active_diagnostics
8445 .primary_range
8446 .to_offset(&buffer)
8447 .to_inclusive()
8448 });
8449 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
8450 if active_primary_range.contains(&selection.head()) {
8451 *active_primary_range.start()
8452 } else {
8453 selection.head()
8454 }
8455 } else {
8456 selection.head()
8457 };
8458 let snapshot = self.snapshot(cx);
8459 loop {
8460 let diagnostics = if direction == Direction::Prev {
8461 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
8462 } else {
8463 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
8464 }
8465 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
8466 let group = diagnostics
8467 // relies on diagnostics_in_range to return diagnostics with the same starting range to
8468 // be sorted in a stable way
8469 // skip until we are at current active diagnostic, if it exists
8470 .skip_while(|entry| {
8471 (match direction {
8472 Direction::Prev => entry.range.start >= search_start,
8473 Direction::Next => entry.range.start <= search_start,
8474 }) && self
8475 .active_diagnostics
8476 .as_ref()
8477 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
8478 })
8479 .find_map(|entry| {
8480 if entry.diagnostic.is_primary
8481 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
8482 && !entry.range.is_empty()
8483 // if we match with the active diagnostic, skip it
8484 && Some(entry.diagnostic.group_id)
8485 != self.active_diagnostics.as_ref().map(|d| d.group_id)
8486 {
8487 Some((entry.range, entry.diagnostic.group_id))
8488 } else {
8489 None
8490 }
8491 });
8492
8493 if let Some((primary_range, group_id)) = group {
8494 if self.activate_diagnostics(group_id, cx) {
8495 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8496 s.select(vec![Selection {
8497 id: selection.id,
8498 start: primary_range.start,
8499 end: primary_range.start,
8500 reversed: false,
8501 goal: SelectionGoal::None,
8502 }]);
8503 });
8504 }
8505 break;
8506 } else {
8507 // Cycle around to the start of the buffer, potentially moving back to the start of
8508 // the currently active diagnostic.
8509 active_primary_range.take();
8510 if direction == Direction::Prev {
8511 if search_start == buffer.len() {
8512 break;
8513 } else {
8514 search_start = buffer.len();
8515 }
8516 } else if search_start == 0 {
8517 break;
8518 } else {
8519 search_start = 0;
8520 }
8521 }
8522 }
8523 }
8524
8525 fn go_to_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
8526 let snapshot = self
8527 .display_map
8528 .update(cx, |display_map, cx| display_map.snapshot(cx));
8529 let selection = self.selections.newest::<Point>(cx);
8530
8531 if !self.seek_in_direction(
8532 &snapshot,
8533 selection.head(),
8534 false,
8535 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8536 MultiBufferRow(selection.head().row + 1)..MultiBufferRow::MAX,
8537 ),
8538 cx,
8539 ) {
8540 let wrapped_point = Point::zero();
8541 self.seek_in_direction(
8542 &snapshot,
8543 wrapped_point,
8544 true,
8545 snapshot.buffer_snapshot.git_diff_hunks_in_range(
8546 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
8547 ),
8548 cx,
8549 );
8550 }
8551 }
8552
8553 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
8554 let snapshot = self
8555 .display_map
8556 .update(cx, |display_map, cx| display_map.snapshot(cx));
8557 let selection = self.selections.newest::<Point>(cx);
8558
8559 if !self.seek_in_direction(
8560 &snapshot,
8561 selection.head(),
8562 false,
8563 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8564 MultiBufferRow(0)..MultiBufferRow(selection.head().row),
8565 ),
8566 cx,
8567 ) {
8568 let wrapped_point = snapshot.buffer_snapshot.max_point();
8569 self.seek_in_direction(
8570 &snapshot,
8571 wrapped_point,
8572 true,
8573 snapshot.buffer_snapshot.git_diff_hunks_in_range_rev(
8574 MultiBufferRow(0)..MultiBufferRow(wrapped_point.row),
8575 ),
8576 cx,
8577 );
8578 }
8579 }
8580
8581 fn seek_in_direction(
8582 &mut self,
8583 snapshot: &DisplaySnapshot,
8584 initial_point: Point,
8585 is_wrapped: bool,
8586 hunks: impl Iterator<Item = DiffHunk<MultiBufferRow>>,
8587 cx: &mut ViewContext<Editor>,
8588 ) -> bool {
8589 let display_point = initial_point.to_display_point(snapshot);
8590 let mut hunks = hunks
8591 .map(|hunk| diff_hunk_to_display(&hunk, &snapshot))
8592 .filter(|hunk| {
8593 if is_wrapped {
8594 true
8595 } else {
8596 !hunk.contains_display_row(display_point.row())
8597 }
8598 })
8599 .dedup();
8600
8601 if let Some(hunk) = hunks.next() {
8602 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8603 let row = hunk.start_display_row();
8604 let point = DisplayPoint::new(row, 0);
8605 s.select_display_ranges([point..point]);
8606 });
8607
8608 true
8609 } else {
8610 false
8611 }
8612 }
8613
8614 pub fn go_to_definition(
8615 &mut self,
8616 _: &GoToDefinition,
8617 cx: &mut ViewContext<Self>,
8618 ) -> Task<Result<bool>> {
8619 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx)
8620 }
8621
8622 pub fn go_to_implementation(
8623 &mut self,
8624 _: &GoToImplementation,
8625 cx: &mut ViewContext<Self>,
8626 ) -> Task<Result<bool>> {
8627 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
8628 }
8629
8630 pub fn go_to_implementation_split(
8631 &mut self,
8632 _: &GoToImplementationSplit,
8633 cx: &mut ViewContext<Self>,
8634 ) -> Task<Result<bool>> {
8635 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
8636 }
8637
8638 pub fn go_to_type_definition(
8639 &mut self,
8640 _: &GoToTypeDefinition,
8641 cx: &mut ViewContext<Self>,
8642 ) -> Task<Result<bool>> {
8643 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
8644 }
8645
8646 pub fn go_to_definition_split(
8647 &mut self,
8648 _: &GoToDefinitionSplit,
8649 cx: &mut ViewContext<Self>,
8650 ) -> Task<Result<bool>> {
8651 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
8652 }
8653
8654 pub fn go_to_type_definition_split(
8655 &mut self,
8656 _: &GoToTypeDefinitionSplit,
8657 cx: &mut ViewContext<Self>,
8658 ) -> Task<Result<bool>> {
8659 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
8660 }
8661
8662 fn go_to_definition_of_kind(
8663 &mut self,
8664 kind: GotoDefinitionKind,
8665 split: bool,
8666 cx: &mut ViewContext<Self>,
8667 ) -> Task<Result<bool>> {
8668 let Some(workspace) = self.workspace() else {
8669 return Task::ready(Ok(false));
8670 };
8671 let buffer = self.buffer.read(cx);
8672 let head = self.selections.newest::<usize>(cx).head();
8673 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
8674 text_anchor
8675 } else {
8676 return Task::ready(Ok(false));
8677 };
8678
8679 let project = workspace.read(cx).project().clone();
8680 let definitions = project.update(cx, |project, cx| match kind {
8681 GotoDefinitionKind::Symbol => project.definition(&buffer, head, cx),
8682 GotoDefinitionKind::Type => project.type_definition(&buffer, head, cx),
8683 GotoDefinitionKind::Implementation => project.implementation(&buffer, head, cx),
8684 });
8685
8686 cx.spawn(|editor, mut cx| async move {
8687 let definitions = definitions.await?;
8688 let navigated = editor
8689 .update(&mut cx, |editor, cx| {
8690 editor.navigate_to_hover_links(
8691 Some(kind),
8692 definitions
8693 .into_iter()
8694 .filter(|location| {
8695 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
8696 })
8697 .map(HoverLink::Text)
8698 .collect::<Vec<_>>(),
8699 split,
8700 cx,
8701 )
8702 })?
8703 .await?;
8704 anyhow::Ok(navigated)
8705 })
8706 }
8707
8708 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
8709 let position = self.selections.newest_anchor().head();
8710 let Some((buffer, buffer_position)) =
8711 self.buffer.read(cx).text_anchor_for_position(position, cx)
8712 else {
8713 return;
8714 };
8715
8716 cx.spawn(|editor, mut cx| async move {
8717 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
8718 editor.update(&mut cx, |_, cx| {
8719 cx.open_url(&url);
8720 })
8721 } else {
8722 Ok(())
8723 }
8724 })
8725 .detach();
8726 }
8727
8728 pub(crate) fn navigate_to_hover_links(
8729 &mut self,
8730 kind: Option<GotoDefinitionKind>,
8731 mut definitions: Vec<HoverLink>,
8732 split: bool,
8733 cx: &mut ViewContext<Editor>,
8734 ) -> Task<Result<bool>> {
8735 // If there is one definition, just open it directly
8736 if definitions.len() == 1 {
8737 let definition = definitions.pop().unwrap();
8738 let target_task = match definition {
8739 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8740 HoverLink::InlayHint(lsp_location, server_id) => {
8741 self.compute_target_location(lsp_location, server_id, cx)
8742 }
8743 HoverLink::Url(url) => {
8744 cx.open_url(&url);
8745 Task::ready(Ok(None))
8746 }
8747 };
8748 cx.spawn(|editor, mut cx| async move {
8749 let target = target_task.await.context("target resolution task")?;
8750 if let Some(target) = target {
8751 editor.update(&mut cx, |editor, cx| {
8752 let Some(workspace) = editor.workspace() else {
8753 return false;
8754 };
8755 let pane = workspace.read(cx).active_pane().clone();
8756
8757 let range = target.range.to_offset(target.buffer.read(cx));
8758 let range = editor.range_for_match(&range);
8759
8760 /// If select range has more than one line, we
8761 /// just point the cursor to range.start.
8762 fn check_multiline_range(
8763 buffer: &Buffer,
8764 range: Range<usize>,
8765 ) -> Range<usize> {
8766 if buffer.offset_to_point(range.start).row
8767 == buffer.offset_to_point(range.end).row
8768 {
8769 range
8770 } else {
8771 range.start..range.start
8772 }
8773 }
8774
8775 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
8776 let buffer = target.buffer.read(cx);
8777 let range = check_multiline_range(buffer, range);
8778 editor.change_selections(Some(Autoscroll::focused()), cx, |s| {
8779 s.select_ranges([range]);
8780 });
8781 } else {
8782 cx.window_context().defer(move |cx| {
8783 let target_editor: View<Self> =
8784 workspace.update(cx, |workspace, cx| {
8785 let pane = if split {
8786 workspace.adjacent_pane(cx)
8787 } else {
8788 workspace.active_pane().clone()
8789 };
8790
8791 workspace.open_project_item(pane, target.buffer.clone(), cx)
8792 });
8793 target_editor.update(cx, |target_editor, cx| {
8794 // When selecting a definition in a different buffer, disable the nav history
8795 // to avoid creating a history entry at the previous cursor location.
8796 pane.update(cx, |pane, _| pane.disable_history());
8797 let buffer = target.buffer.read(cx);
8798 let range = check_multiline_range(buffer, range);
8799 target_editor.change_selections(
8800 Some(Autoscroll::focused()),
8801 cx,
8802 |s| {
8803 s.select_ranges([range]);
8804 },
8805 );
8806 pane.update(cx, |pane, _| pane.enable_history());
8807 });
8808 });
8809 }
8810 true
8811 })
8812 } else {
8813 Ok(false)
8814 }
8815 })
8816 } else if !definitions.is_empty() {
8817 let replica_id = self.replica_id(cx);
8818 cx.spawn(|editor, mut cx| async move {
8819 let (title, location_tasks, workspace) = editor
8820 .update(&mut cx, |editor, cx| {
8821 let tab_kind = match kind {
8822 Some(GotoDefinitionKind::Implementation) => "Implementations",
8823 _ => "Definitions",
8824 };
8825 let title = definitions
8826 .iter()
8827 .find_map(|definition| match definition {
8828 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
8829 let buffer = origin.buffer.read(cx);
8830 format!(
8831 "{} for {}",
8832 tab_kind,
8833 buffer
8834 .text_for_range(origin.range.clone())
8835 .collect::<String>()
8836 )
8837 }),
8838 HoverLink::InlayHint(_, _) => None,
8839 HoverLink::Url(_) => None,
8840 })
8841 .unwrap_or(tab_kind.to_string());
8842 let location_tasks = definitions
8843 .into_iter()
8844 .map(|definition| match definition {
8845 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
8846 HoverLink::InlayHint(lsp_location, server_id) => {
8847 editor.compute_target_location(lsp_location, server_id, cx)
8848 }
8849 HoverLink::Url(_) => Task::ready(Ok(None)),
8850 })
8851 .collect::<Vec<_>>();
8852 (title, location_tasks, editor.workspace().clone())
8853 })
8854 .context("location tasks preparation")?;
8855
8856 let locations = futures::future::join_all(location_tasks)
8857 .await
8858 .into_iter()
8859 .filter_map(|location| location.transpose())
8860 .collect::<Result<_>>()
8861 .context("location tasks")?;
8862
8863 let Some(workspace) = workspace else {
8864 return Ok(false);
8865 };
8866 let opened = workspace
8867 .update(&mut cx, |workspace, cx| {
8868 Self::open_locations_in_multibuffer(
8869 workspace, locations, replica_id, title, split, cx,
8870 )
8871 })
8872 .ok();
8873
8874 anyhow::Ok(opened.is_some())
8875 })
8876 } else {
8877 Task::ready(Ok(false))
8878 }
8879 }
8880
8881 fn compute_target_location(
8882 &self,
8883 lsp_location: lsp::Location,
8884 server_id: LanguageServerId,
8885 cx: &mut ViewContext<Editor>,
8886 ) -> Task<anyhow::Result<Option<Location>>> {
8887 let Some(project) = self.project.clone() else {
8888 return Task::Ready(Some(Ok(None)));
8889 };
8890
8891 cx.spawn(move |editor, mut cx| async move {
8892 let location_task = editor.update(&mut cx, |editor, cx| {
8893 project.update(cx, |project, cx| {
8894 let language_server_name =
8895 editor.buffer.read(cx).as_singleton().and_then(|buffer| {
8896 project
8897 .language_server_for_buffer(buffer.read(cx), server_id, cx)
8898 .map(|(lsp_adapter, _)| lsp_adapter.name.clone())
8899 });
8900 language_server_name.map(|language_server_name| {
8901 project.open_local_buffer_via_lsp(
8902 lsp_location.uri.clone(),
8903 server_id,
8904 language_server_name,
8905 cx,
8906 )
8907 })
8908 })
8909 })?;
8910 let location = match location_task {
8911 Some(task) => Some({
8912 let target_buffer_handle = task.await.context("open local buffer")?;
8913 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
8914 let target_start = target_buffer
8915 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
8916 let target_end = target_buffer
8917 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
8918 target_buffer.anchor_after(target_start)
8919 ..target_buffer.anchor_before(target_end)
8920 })?;
8921 Location {
8922 buffer: target_buffer_handle,
8923 range,
8924 }
8925 }),
8926 None => None,
8927 };
8928 Ok(location)
8929 })
8930 }
8931
8932 pub fn find_all_references(
8933 &mut self,
8934 _: &FindAllReferences,
8935 cx: &mut ViewContext<Self>,
8936 ) -> Option<Task<Result<()>>> {
8937 let multi_buffer = self.buffer.read(cx);
8938 let selection = self.selections.newest::<usize>(cx);
8939 let head = selection.head();
8940
8941 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
8942 let head_anchor = multi_buffer_snapshot.anchor_at(
8943 head,
8944 if head < selection.tail() {
8945 Bias::Right
8946 } else {
8947 Bias::Left
8948 },
8949 );
8950
8951 match self
8952 .find_all_references_task_sources
8953 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
8954 {
8955 Ok(_) => {
8956 log::info!(
8957 "Ignoring repeated FindAllReferences invocation with the position of already running task"
8958 );
8959 return None;
8960 }
8961 Err(i) => {
8962 self.find_all_references_task_sources.insert(i, head_anchor);
8963 }
8964 }
8965
8966 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
8967 let replica_id = self.replica_id(cx);
8968 let workspace = self.workspace()?;
8969 let project = workspace.read(cx).project().clone();
8970 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
8971 Some(cx.spawn(|editor, mut cx| async move {
8972 let _cleanup = defer({
8973 let mut cx = cx.clone();
8974 move || {
8975 let _ = editor.update(&mut cx, |editor, _| {
8976 if let Ok(i) =
8977 editor
8978 .find_all_references_task_sources
8979 .binary_search_by(|anchor| {
8980 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
8981 })
8982 {
8983 editor.find_all_references_task_sources.remove(i);
8984 }
8985 });
8986 }
8987 });
8988
8989 let locations = references.await?;
8990 if locations.is_empty() {
8991 return anyhow::Ok(());
8992 }
8993
8994 workspace.update(&mut cx, |workspace, cx| {
8995 let title = locations
8996 .first()
8997 .as_ref()
8998 .map(|location| {
8999 let buffer = location.buffer.read(cx);
9000 format!(
9001 "References to `{}`",
9002 buffer
9003 .text_for_range(location.range.clone())
9004 .collect::<String>()
9005 )
9006 })
9007 .unwrap();
9008 Self::open_locations_in_multibuffer(
9009 workspace, locations, replica_id, title, false, cx,
9010 );
9011 })
9012 }))
9013 }
9014
9015 /// Opens a multibuffer with the given project locations in it
9016 pub fn open_locations_in_multibuffer(
9017 workspace: &mut Workspace,
9018 mut locations: Vec<Location>,
9019 replica_id: ReplicaId,
9020 title: String,
9021 split: bool,
9022 cx: &mut ViewContext<Workspace>,
9023 ) {
9024 // If there are multiple definitions, open them in a multibuffer
9025 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9026 let mut locations = locations.into_iter().peekable();
9027 let mut ranges_to_highlight = Vec::new();
9028 let capability = workspace.project().read(cx).capability();
9029
9030 let excerpt_buffer = cx.new_model(|cx| {
9031 let mut multibuffer = MultiBuffer::new(replica_id, capability);
9032 while let Some(location) = locations.next() {
9033 let buffer = location.buffer.read(cx);
9034 let mut ranges_for_buffer = Vec::new();
9035 let range = location.range.to_offset(buffer);
9036 ranges_for_buffer.push(range.clone());
9037
9038 while let Some(next_location) = locations.peek() {
9039 if next_location.buffer == location.buffer {
9040 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9041 locations.next();
9042 } else {
9043 break;
9044 }
9045 }
9046
9047 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9048 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9049 location.buffer.clone(),
9050 ranges_for_buffer,
9051 DEFAULT_MULTIBUFFER_CONTEXT,
9052 cx,
9053 ))
9054 }
9055
9056 multibuffer.with_title(title)
9057 });
9058
9059 let editor = cx.new_view(|cx| {
9060 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9061 });
9062 editor.update(cx, |editor, cx| {
9063 editor.highlight_background::<Self>(
9064 &ranges_to_highlight,
9065 |theme| theme.editor_highlighted_line_background,
9066 cx,
9067 );
9068 });
9069
9070 let item = Box::new(editor);
9071 let item_id = item.item_id();
9072
9073 if split {
9074 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9075 } else {
9076 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9077 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9078 pane.close_current_preview_item(cx)
9079 } else {
9080 None
9081 }
9082 });
9083 workspace.add_item_to_active_pane(item.clone(), destination_index, cx);
9084 }
9085 workspace.active_pane().update(cx, |pane, cx| {
9086 pane.set_preview_item_id(Some(item_id), cx);
9087 });
9088 }
9089
9090 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9091 use language::ToOffset as _;
9092
9093 let project = self.project.clone()?;
9094 let selection = self.selections.newest_anchor().clone();
9095 let (cursor_buffer, cursor_buffer_position) = self
9096 .buffer
9097 .read(cx)
9098 .text_anchor_for_position(selection.head(), cx)?;
9099 let (tail_buffer, cursor_buffer_position_end) = self
9100 .buffer
9101 .read(cx)
9102 .text_anchor_for_position(selection.tail(), cx)?;
9103 if tail_buffer != cursor_buffer {
9104 return None;
9105 }
9106
9107 let snapshot = cursor_buffer.read(cx).snapshot();
9108 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9109 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9110 let prepare_rename = project.update(cx, |project, cx| {
9111 project.prepare_rename(cursor_buffer.clone(), cursor_buffer_offset, cx)
9112 });
9113 drop(snapshot);
9114
9115 Some(cx.spawn(|this, mut cx| async move {
9116 let rename_range = if let Some(range) = prepare_rename.await? {
9117 Some(range)
9118 } else {
9119 this.update(&mut cx, |this, cx| {
9120 let buffer = this.buffer.read(cx).snapshot(cx);
9121 let mut buffer_highlights = this
9122 .document_highlights_for_position(selection.head(), &buffer)
9123 .filter(|highlight| {
9124 highlight.start.excerpt_id == selection.head().excerpt_id
9125 && highlight.end.excerpt_id == selection.head().excerpt_id
9126 });
9127 buffer_highlights
9128 .next()
9129 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9130 })?
9131 };
9132 if let Some(rename_range) = rename_range {
9133 this.update(&mut cx, |this, cx| {
9134 let snapshot = cursor_buffer.read(cx).snapshot();
9135 let rename_buffer_range = rename_range.to_offset(&snapshot);
9136 let cursor_offset_in_rename_range =
9137 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9138 let cursor_offset_in_rename_range_end =
9139 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9140
9141 this.take_rename(false, cx);
9142 let buffer = this.buffer.read(cx).read(cx);
9143 let cursor_offset = selection.head().to_offset(&buffer);
9144 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9145 let rename_end = rename_start + rename_buffer_range.len();
9146 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9147 let mut old_highlight_id = None;
9148 let old_name: Arc<str> = buffer
9149 .chunks(rename_start..rename_end, true)
9150 .map(|chunk| {
9151 if old_highlight_id.is_none() {
9152 old_highlight_id = chunk.syntax_highlight_id;
9153 }
9154 chunk.text
9155 })
9156 .collect::<String>()
9157 .into();
9158
9159 drop(buffer);
9160
9161 // Position the selection in the rename editor so that it matches the current selection.
9162 this.show_local_selections = false;
9163 let rename_editor = cx.new_view(|cx| {
9164 let mut editor = Editor::single_line(cx);
9165 editor.buffer.update(cx, |buffer, cx| {
9166 buffer.edit([(0..0, old_name.clone())], None, cx)
9167 });
9168 let rename_selection_range = match cursor_offset_in_rename_range
9169 .cmp(&cursor_offset_in_rename_range_end)
9170 {
9171 Ordering::Equal => {
9172 editor.select_all(&SelectAll, cx);
9173 return editor;
9174 }
9175 Ordering::Less => {
9176 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
9177 }
9178 Ordering::Greater => {
9179 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
9180 }
9181 };
9182 if rename_selection_range.end > old_name.len() {
9183 editor.select_all(&SelectAll, cx);
9184 } else {
9185 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9186 s.select_ranges([rename_selection_range]);
9187 });
9188 }
9189 editor
9190 });
9191
9192 let write_highlights =
9193 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
9194 let read_highlights =
9195 this.clear_background_highlights::<DocumentHighlightRead>(cx);
9196 let ranges = write_highlights
9197 .iter()
9198 .flat_map(|(_, ranges)| ranges.iter())
9199 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
9200 .cloned()
9201 .collect();
9202
9203 this.highlight_text::<Rename>(
9204 ranges,
9205 HighlightStyle {
9206 fade_out: Some(0.6),
9207 ..Default::default()
9208 },
9209 cx,
9210 );
9211 let rename_focus_handle = rename_editor.focus_handle(cx);
9212 cx.focus(&rename_focus_handle);
9213 let block_id = this.insert_blocks(
9214 [BlockProperties {
9215 style: BlockStyle::Flex,
9216 position: range.start,
9217 height: 1,
9218 render: Box::new({
9219 let rename_editor = rename_editor.clone();
9220 move |cx: &mut BlockContext| {
9221 let mut text_style = cx.editor_style.text.clone();
9222 if let Some(highlight_style) = old_highlight_id
9223 .and_then(|h| h.style(&cx.editor_style.syntax))
9224 {
9225 text_style = text_style.highlight(highlight_style);
9226 }
9227 div()
9228 .pl(cx.anchor_x)
9229 .child(EditorElement::new(
9230 &rename_editor,
9231 EditorStyle {
9232 background: cx.theme().system().transparent,
9233 local_player: cx.editor_style.local_player,
9234 text: text_style,
9235 scrollbar_width: cx.editor_style.scrollbar_width,
9236 syntax: cx.editor_style.syntax.clone(),
9237 status: cx.editor_style.status.clone(),
9238 inlay_hints_style: HighlightStyle {
9239 color: Some(cx.theme().status().hint),
9240 font_weight: Some(FontWeight::BOLD),
9241 ..HighlightStyle::default()
9242 },
9243 suggestions_style: HighlightStyle {
9244 color: Some(cx.theme().status().predictive),
9245 ..HighlightStyle::default()
9246 },
9247 },
9248 ))
9249 .into_any_element()
9250 }
9251 }),
9252 disposition: BlockDisposition::Below,
9253 }],
9254 Some(Autoscroll::fit()),
9255 cx,
9256 )[0];
9257 this.pending_rename = Some(RenameState {
9258 range,
9259 old_name,
9260 editor: rename_editor,
9261 block_id,
9262 });
9263 })?;
9264 }
9265
9266 Ok(())
9267 }))
9268 }
9269
9270 pub fn confirm_rename(
9271 &mut self,
9272 _: &ConfirmRename,
9273 cx: &mut ViewContext<Self>,
9274 ) -> Option<Task<Result<()>>> {
9275 let rename = self.take_rename(false, cx)?;
9276 let workspace = self.workspace()?;
9277 let (start_buffer, start) = self
9278 .buffer
9279 .read(cx)
9280 .text_anchor_for_position(rename.range.start, cx)?;
9281 let (end_buffer, end) = self
9282 .buffer
9283 .read(cx)
9284 .text_anchor_for_position(rename.range.end, cx)?;
9285 if start_buffer != end_buffer {
9286 return None;
9287 }
9288
9289 let buffer = start_buffer;
9290 let range = start..end;
9291 let old_name = rename.old_name;
9292 let new_name = rename.editor.read(cx).text(cx);
9293
9294 let rename = workspace
9295 .read(cx)
9296 .project()
9297 .clone()
9298 .update(cx, |project, cx| {
9299 project.perform_rename(buffer.clone(), range.start, new_name.clone(), true, cx)
9300 });
9301 let workspace = workspace.downgrade();
9302
9303 Some(cx.spawn(|editor, mut cx| async move {
9304 let project_transaction = rename.await?;
9305 Self::open_project_transaction(
9306 &editor,
9307 workspace,
9308 project_transaction,
9309 format!("Rename: {} → {}", old_name, new_name),
9310 cx.clone(),
9311 )
9312 .await?;
9313
9314 editor.update(&mut cx, |editor, cx| {
9315 editor.refresh_document_highlights(cx);
9316 })?;
9317 Ok(())
9318 }))
9319 }
9320
9321 fn take_rename(
9322 &mut self,
9323 moving_cursor: bool,
9324 cx: &mut ViewContext<Self>,
9325 ) -> Option<RenameState> {
9326 let rename = self.pending_rename.take()?;
9327 if rename.editor.focus_handle(cx).is_focused(cx) {
9328 cx.focus(&self.focus_handle);
9329 }
9330
9331 self.remove_blocks(
9332 [rename.block_id].into_iter().collect(),
9333 Some(Autoscroll::fit()),
9334 cx,
9335 );
9336 self.clear_highlights::<Rename>(cx);
9337 self.show_local_selections = true;
9338
9339 if moving_cursor {
9340 let rename_editor = rename.editor.read(cx);
9341 let cursor_in_rename_editor = rename_editor.selections.newest::<usize>(cx).head();
9342
9343 // Update the selection to match the position of the selection inside
9344 // the rename editor.
9345 let snapshot = self.buffer.read(cx).read(cx);
9346 let rename_range = rename.range.to_offset(&snapshot);
9347 let cursor_in_editor = snapshot
9348 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
9349 .min(rename_range.end);
9350 drop(snapshot);
9351
9352 self.change_selections(None, cx, |s| {
9353 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
9354 });
9355 } else {
9356 self.refresh_document_highlights(cx);
9357 }
9358
9359 Some(rename)
9360 }
9361
9362 pub fn pending_rename(&self) -> Option<&RenameState> {
9363 self.pending_rename.as_ref()
9364 }
9365
9366 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9367 let project = match &self.project {
9368 Some(project) => project.clone(),
9369 None => return None,
9370 };
9371
9372 Some(self.perform_format(project, FormatTrigger::Manual, cx))
9373 }
9374
9375 fn perform_format(
9376 &mut self,
9377 project: Model<Project>,
9378 trigger: FormatTrigger,
9379 cx: &mut ViewContext<Self>,
9380 ) -> Task<Result<()>> {
9381 let buffer = self.buffer().clone();
9382 let mut buffers = buffer.read(cx).all_buffers();
9383 if trigger == FormatTrigger::Save {
9384 buffers.retain(|buffer| buffer.read(cx).is_dirty());
9385 }
9386
9387 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
9388 let format = project.update(cx, |project, cx| project.format(buffers, true, trigger, cx));
9389
9390 cx.spawn(|_, mut cx| async move {
9391 let transaction = futures::select_biased! {
9392 () = timeout => {
9393 log::warn!("timed out waiting for formatting");
9394 None
9395 }
9396 transaction = format.log_err().fuse() => transaction,
9397 };
9398
9399 buffer
9400 .update(&mut cx, |buffer, cx| {
9401 if let Some(transaction) = transaction {
9402 if !buffer.is_singleton() {
9403 buffer.push_transaction(&transaction.0, cx);
9404 }
9405 }
9406
9407 cx.notify();
9408 })
9409 .ok();
9410
9411 Ok(())
9412 })
9413 }
9414
9415 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
9416 if let Some(project) = self.project.clone() {
9417 self.buffer.update(cx, |multi_buffer, cx| {
9418 project.update(cx, |project, cx| {
9419 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
9420 });
9421 })
9422 }
9423 }
9424
9425 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
9426 cx.show_character_palette();
9427 }
9428
9429 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
9430 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
9431 let buffer = self.buffer.read(cx).snapshot(cx);
9432 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
9433 let is_valid = buffer
9434 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
9435 .any(|entry| {
9436 entry.diagnostic.is_primary
9437 && !entry.range.is_empty()
9438 && entry.range.start == primary_range_start
9439 && entry.diagnostic.message == active_diagnostics.primary_message
9440 });
9441
9442 if is_valid != active_diagnostics.is_valid {
9443 active_diagnostics.is_valid = is_valid;
9444 let mut new_styles = HashMap::default();
9445 for (block_id, diagnostic) in &active_diagnostics.blocks {
9446 new_styles.insert(
9447 *block_id,
9448 (
9449 None,
9450 diagnostic_block_renderer(diagnostic.clone(), is_valid),
9451 ),
9452 );
9453 }
9454 self.display_map.update(cx, |display_map, cx| {
9455 display_map.replace_blocks(new_styles, cx)
9456 });
9457 }
9458 }
9459 }
9460
9461 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
9462 self.dismiss_diagnostics(cx);
9463 let snapshot = self.snapshot(cx);
9464 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
9465 let buffer = self.buffer.read(cx).snapshot(cx);
9466
9467 let mut primary_range = None;
9468 let mut primary_message = None;
9469 let mut group_end = Point::zero();
9470 let diagnostic_group = buffer
9471 .diagnostic_group::<MultiBufferPoint>(group_id)
9472 .filter_map(|entry| {
9473 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
9474 && (entry.range.start.row == entry.range.end.row
9475 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
9476 {
9477 return None;
9478 }
9479 if entry.range.end > group_end {
9480 group_end = entry.range.end;
9481 }
9482 if entry.diagnostic.is_primary {
9483 primary_range = Some(entry.range.clone());
9484 primary_message = Some(entry.diagnostic.message.clone());
9485 }
9486 Some(entry)
9487 })
9488 .collect::<Vec<_>>();
9489 let primary_range = primary_range?;
9490 let primary_message = primary_message?;
9491 let primary_range =
9492 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
9493
9494 let blocks = display_map
9495 .insert_blocks(
9496 diagnostic_group.iter().map(|entry| {
9497 let diagnostic = entry.diagnostic.clone();
9498 let message_height = diagnostic.message.matches('\n').count() as u8 + 1;
9499 BlockProperties {
9500 style: BlockStyle::Fixed,
9501 position: buffer.anchor_after(entry.range.start),
9502 height: message_height,
9503 render: diagnostic_block_renderer(diagnostic, true),
9504 disposition: BlockDisposition::Below,
9505 }
9506 }),
9507 cx,
9508 )
9509 .into_iter()
9510 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
9511 .collect();
9512
9513 Some(ActiveDiagnosticGroup {
9514 primary_range,
9515 primary_message,
9516 group_id,
9517 blocks,
9518 is_valid: true,
9519 })
9520 });
9521 self.active_diagnostics.is_some()
9522 }
9523
9524 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
9525 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
9526 self.display_map.update(cx, |display_map, cx| {
9527 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
9528 });
9529 cx.notify();
9530 }
9531 }
9532
9533 pub fn set_selections_from_remote(
9534 &mut self,
9535 selections: Vec<Selection<Anchor>>,
9536 pending_selection: Option<Selection<Anchor>>,
9537 cx: &mut ViewContext<Self>,
9538 ) {
9539 let old_cursor_position = self.selections.newest_anchor().head();
9540 self.selections.change_with(cx, |s| {
9541 s.select_anchors(selections);
9542 if let Some(pending_selection) = pending_selection {
9543 s.set_pending(pending_selection, SelectMode::Character);
9544 } else {
9545 s.clear_pending();
9546 }
9547 });
9548 self.selections_did_change(false, &old_cursor_position, true, cx);
9549 }
9550
9551 fn push_to_selection_history(&mut self) {
9552 self.selection_history.push(SelectionHistoryEntry {
9553 selections: self.selections.disjoint_anchors(),
9554 select_next_state: self.select_next_state.clone(),
9555 select_prev_state: self.select_prev_state.clone(),
9556 add_selections_state: self.add_selections_state.clone(),
9557 });
9558 }
9559
9560 pub fn transact(
9561 &mut self,
9562 cx: &mut ViewContext<Self>,
9563 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
9564 ) -> Option<TransactionId> {
9565 self.start_transaction_at(Instant::now(), cx);
9566 update(self, cx);
9567 self.end_transaction_at(Instant::now(), cx)
9568 }
9569
9570 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
9571 self.end_selection(cx);
9572 if let Some(tx_id) = self
9573 .buffer
9574 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
9575 {
9576 self.selection_history
9577 .insert_transaction(tx_id, self.selections.disjoint_anchors());
9578 cx.emit(EditorEvent::TransactionBegun {
9579 transaction_id: tx_id,
9580 })
9581 }
9582 }
9583
9584 fn end_transaction_at(
9585 &mut self,
9586 now: Instant,
9587 cx: &mut ViewContext<Self>,
9588 ) -> Option<TransactionId> {
9589 if let Some(tx_id) = self
9590 .buffer
9591 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
9592 {
9593 if let Some((_, end_selections)) = self.selection_history.transaction_mut(tx_id) {
9594 *end_selections = Some(self.selections.disjoint_anchors());
9595 } else {
9596 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
9597 }
9598
9599 cx.emit(EditorEvent::Edited);
9600 Some(tx_id)
9601 } else {
9602 None
9603 }
9604 }
9605
9606 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
9607 let mut fold_ranges = Vec::new();
9608
9609 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9610
9611 let selections = self.selections.all_adjusted(cx);
9612 for selection in selections {
9613 let range = selection.range().sorted();
9614 let buffer_start_row = range.start.row;
9615
9616 for row in (0..=range.end.row).rev() {
9617 if let Some((foldable_range, fold_text)) =
9618 display_map.foldable_range(MultiBufferRow(row))
9619 {
9620 if foldable_range.end.row >= buffer_start_row {
9621 fold_ranges.push((foldable_range, fold_text));
9622 if row <= range.start.row {
9623 break;
9624 }
9625 }
9626 }
9627 }
9628 }
9629
9630 self.fold_ranges(fold_ranges, true, cx);
9631 }
9632
9633 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
9634 let buffer_row = fold_at.buffer_row;
9635 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9636
9637 if let Some((fold_range, placeholder)) = display_map.foldable_range(buffer_row) {
9638 let autoscroll = self
9639 .selections
9640 .all::<Point>(cx)
9641 .iter()
9642 .any(|selection| fold_range.overlaps(&selection.range()));
9643
9644 self.fold_ranges([(fold_range, placeholder)], autoscroll, cx);
9645 }
9646 }
9647
9648 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
9649 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9650 let buffer = &display_map.buffer_snapshot;
9651 let selections = self.selections.all::<Point>(cx);
9652 let ranges = selections
9653 .iter()
9654 .map(|s| {
9655 let range = s.display_range(&display_map).sorted();
9656 let mut start = range.start.to_point(&display_map);
9657 let mut end = range.end.to_point(&display_map);
9658 start.column = 0;
9659 end.column = buffer.line_len(MultiBufferRow(end.row));
9660 start..end
9661 })
9662 .collect::<Vec<_>>();
9663
9664 self.unfold_ranges(ranges, true, true, cx);
9665 }
9666
9667 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
9668 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9669
9670 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
9671 ..Point::new(
9672 unfold_at.buffer_row.0,
9673 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
9674 );
9675
9676 let autoscroll = self
9677 .selections
9678 .all::<Point>(cx)
9679 .iter()
9680 .any(|selection| selection.range().overlaps(&intersection_range));
9681
9682 self.unfold_ranges(std::iter::once(intersection_range), true, autoscroll, cx)
9683 }
9684
9685 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
9686 let selections = self.selections.all::<Point>(cx);
9687 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9688 let line_mode = self.selections.line_mode;
9689 let ranges = selections.into_iter().map(|s| {
9690 if line_mode {
9691 let start = Point::new(s.start.row, 0);
9692 let end = Point::new(
9693 s.end.row,
9694 display_map
9695 .buffer_snapshot
9696 .line_len(MultiBufferRow(s.end.row)),
9697 );
9698 (start..end, display_map.fold_placeholder.clone())
9699 } else {
9700 (s.start..s.end, display_map.fold_placeholder.clone())
9701 }
9702 });
9703 self.fold_ranges(ranges, true, cx);
9704 }
9705
9706 pub fn fold_ranges<T: ToOffset + Clone>(
9707 &mut self,
9708 ranges: impl IntoIterator<Item = (Range<T>, FoldPlaceholder)>,
9709 auto_scroll: bool,
9710 cx: &mut ViewContext<Self>,
9711 ) {
9712 let mut fold_ranges = Vec::new();
9713 let mut buffers_affected = HashMap::default();
9714 let multi_buffer = self.buffer().read(cx);
9715 for (fold_range, fold_text) in ranges {
9716 if let Some((_, buffer, _)) =
9717 multi_buffer.excerpt_containing(fold_range.start.clone(), cx)
9718 {
9719 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9720 };
9721 fold_ranges.push((fold_range, fold_text));
9722 }
9723
9724 let mut ranges = fold_ranges.into_iter().peekable();
9725 if ranges.peek().is_some() {
9726 self.display_map.update(cx, |map, cx| map.fold(ranges, cx));
9727
9728 if auto_scroll {
9729 self.request_autoscroll(Autoscroll::fit(), cx);
9730 }
9731
9732 for buffer in buffers_affected.into_values() {
9733 self.sync_expanded_diff_hunks(buffer, cx);
9734 }
9735
9736 cx.notify();
9737
9738 if let Some(active_diagnostics) = self.active_diagnostics.take() {
9739 // Clear diagnostics block when folding a range that contains it.
9740 let snapshot = self.snapshot(cx);
9741 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
9742 drop(snapshot);
9743 self.active_diagnostics = Some(active_diagnostics);
9744 self.dismiss_diagnostics(cx);
9745 } else {
9746 self.active_diagnostics = Some(active_diagnostics);
9747 }
9748 }
9749
9750 self.scrollbar_marker_state.dirty = true;
9751 }
9752 }
9753
9754 pub fn unfold_ranges<T: ToOffset + Clone>(
9755 &mut self,
9756 ranges: impl IntoIterator<Item = Range<T>>,
9757 inclusive: bool,
9758 auto_scroll: bool,
9759 cx: &mut ViewContext<Self>,
9760 ) {
9761 let mut unfold_ranges = Vec::new();
9762 let mut buffers_affected = HashMap::default();
9763 let multi_buffer = self.buffer().read(cx);
9764 for range in ranges {
9765 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
9766 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
9767 };
9768 unfold_ranges.push(range);
9769 }
9770
9771 let mut ranges = unfold_ranges.into_iter().peekable();
9772 if ranges.peek().is_some() {
9773 self.display_map
9774 .update(cx, |map, cx| map.unfold(ranges, inclusive, cx));
9775 if auto_scroll {
9776 self.request_autoscroll(Autoscroll::fit(), cx);
9777 }
9778
9779 for buffer in buffers_affected.into_values() {
9780 self.sync_expanded_diff_hunks(buffer, cx);
9781 }
9782
9783 cx.notify();
9784 self.scrollbar_marker_state.dirty = true;
9785 self.active_indent_guides_state.dirty = true;
9786 }
9787 }
9788
9789 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
9790 if hovered != self.gutter_hovered {
9791 self.gutter_hovered = hovered;
9792 cx.notify();
9793 }
9794 }
9795
9796 pub fn insert_blocks(
9797 &mut self,
9798 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
9799 autoscroll: Option<Autoscroll>,
9800 cx: &mut ViewContext<Self>,
9801 ) -> Vec<BlockId> {
9802 let blocks = self
9803 .display_map
9804 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
9805 if let Some(autoscroll) = autoscroll {
9806 self.request_autoscroll(autoscroll, cx);
9807 }
9808 blocks
9809 }
9810
9811 pub fn replace_blocks(
9812 &mut self,
9813 blocks: HashMap<BlockId, (Option<u8>, RenderBlock)>,
9814 autoscroll: Option<Autoscroll>,
9815 cx: &mut ViewContext<Self>,
9816 ) {
9817 self.display_map
9818 .update(cx, |display_map, cx| display_map.replace_blocks(blocks, cx));
9819 if let Some(autoscroll) = autoscroll {
9820 self.request_autoscroll(autoscroll, cx);
9821 }
9822 }
9823
9824 pub fn remove_blocks(
9825 &mut self,
9826 block_ids: HashSet<BlockId>,
9827 autoscroll: Option<Autoscroll>,
9828 cx: &mut ViewContext<Self>,
9829 ) {
9830 self.display_map.update(cx, |display_map, cx| {
9831 display_map.remove_blocks(block_ids, cx)
9832 });
9833 if let Some(autoscroll) = autoscroll {
9834 self.request_autoscroll(autoscroll, cx);
9835 }
9836 }
9837
9838 pub fn insert_flaps(
9839 &mut self,
9840 flaps: impl IntoIterator<Item = Flap>,
9841 cx: &mut ViewContext<Self>,
9842 ) -> Vec<FlapId> {
9843 self.display_map
9844 .update(cx, |map, cx| map.insert_flaps(flaps, cx))
9845 }
9846
9847 pub fn remove_flaps(
9848 &mut self,
9849 ids: impl IntoIterator<Item = FlapId>,
9850 cx: &mut ViewContext<Self>,
9851 ) {
9852 self.display_map
9853 .update(cx, |map, cx| map.remove_flaps(ids, cx));
9854 }
9855
9856 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
9857 self.display_map
9858 .update(cx, |map, cx| map.snapshot(cx))
9859 .longest_row()
9860 }
9861
9862 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
9863 self.display_map
9864 .update(cx, |map, cx| map.snapshot(cx))
9865 .max_point()
9866 }
9867
9868 pub fn text(&self, cx: &AppContext) -> String {
9869 self.buffer.read(cx).read(cx).text()
9870 }
9871
9872 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
9873 let text = self.text(cx);
9874 let text = text.trim();
9875
9876 if text.is_empty() {
9877 return None;
9878 }
9879
9880 Some(text.to_string())
9881 }
9882
9883 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
9884 self.transact(cx, |this, cx| {
9885 this.buffer
9886 .read(cx)
9887 .as_singleton()
9888 .expect("you can only call set_text on editors for singleton buffers")
9889 .update(cx, |buffer, cx| buffer.set_text(text, cx));
9890 });
9891 }
9892
9893 pub fn display_text(&self, cx: &mut AppContext) -> String {
9894 self.display_map
9895 .update(cx, |map, cx| map.snapshot(cx))
9896 .text()
9897 }
9898
9899 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
9900 let mut wrap_guides = smallvec::smallvec![];
9901
9902 if self.show_wrap_guides == Some(false) {
9903 return wrap_guides;
9904 }
9905
9906 let settings = self.buffer.read(cx).settings_at(0, cx);
9907 if settings.show_wrap_guides {
9908 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
9909 wrap_guides.push((soft_wrap as usize, true));
9910 }
9911 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
9912 }
9913
9914 wrap_guides
9915 }
9916
9917 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
9918 let settings = self.buffer.read(cx).settings_at(0, cx);
9919 let mode = self
9920 .soft_wrap_mode_override
9921 .unwrap_or_else(|| settings.soft_wrap);
9922 match mode {
9923 language_settings::SoftWrap::None => SoftWrap::None,
9924 language_settings::SoftWrap::PreferLine => SoftWrap::PreferLine,
9925 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
9926 language_settings::SoftWrap::PreferredLineLength => {
9927 SoftWrap::Column(settings.preferred_line_length)
9928 }
9929 }
9930 }
9931
9932 pub fn set_soft_wrap_mode(
9933 &mut self,
9934 mode: language_settings::SoftWrap,
9935 cx: &mut ViewContext<Self>,
9936 ) {
9937 self.soft_wrap_mode_override = Some(mode);
9938 cx.notify();
9939 }
9940
9941 pub fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
9942 let rem_size = cx.rem_size();
9943 self.display_map.update(cx, |map, cx| {
9944 map.set_font(
9945 style.text.font(),
9946 style.text.font_size.to_pixels(rem_size),
9947 cx,
9948 )
9949 });
9950 self.style = Some(style);
9951 }
9952
9953 pub fn style(&self) -> Option<&EditorStyle> {
9954 self.style.as_ref()
9955 }
9956
9957 // Called by the element. This method is not designed to be called outside of the editor
9958 // element's layout code because it does not notify when rewrapping is computed synchronously.
9959 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
9960 self.display_map
9961 .update(cx, |map, cx| map.set_wrap_width(width, cx))
9962 }
9963
9964 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
9965 if self.soft_wrap_mode_override.is_some() {
9966 self.soft_wrap_mode_override.take();
9967 } else {
9968 let soft_wrap = match self.soft_wrap_mode(cx) {
9969 SoftWrap::None | SoftWrap::PreferLine => language_settings::SoftWrap::EditorWidth,
9970 SoftWrap::EditorWidth | SoftWrap::Column(_) => {
9971 language_settings::SoftWrap::PreferLine
9972 }
9973 };
9974 self.soft_wrap_mode_override = Some(soft_wrap);
9975 }
9976 cx.notify();
9977 }
9978
9979 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
9980 let Some(workspace) = self.workspace() else {
9981 return;
9982 };
9983 let fs = workspace.read(cx).app_state().fs.clone();
9984 let current_show = TabBarSettings::get_global(cx).show;
9985 update_settings_file::<TabBarSettings>(fs, cx, move |setting| {
9986 setting.show = Some(!current_show);
9987 });
9988 }
9989
9990 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
9991 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
9992 self.buffer
9993 .read(cx)
9994 .settings_at(0, cx)
9995 .indent_guides
9996 .enabled
9997 });
9998 self.show_indent_guides = Some(!currently_enabled);
9999 cx.notify();
10000 }
10001
10002 fn should_show_indent_guides(&self) -> Option<bool> {
10003 self.show_indent_guides
10004 }
10005
10006 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
10007 let mut editor_settings = EditorSettings::get_global(cx).clone();
10008 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
10009 EditorSettings::override_global(editor_settings, cx);
10010 }
10011
10012 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
10013 self.show_gutter = show_gutter;
10014 cx.notify();
10015 }
10016
10017 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
10018 self.show_line_numbers = Some(show_line_numbers);
10019 cx.notify();
10020 }
10021
10022 pub fn set_show_git_diff_gutter(
10023 &mut self,
10024 show_git_diff_gutter: bool,
10025 cx: &mut ViewContext<Self>,
10026 ) {
10027 self.show_git_diff_gutter = Some(show_git_diff_gutter);
10028 cx.notify();
10029 }
10030
10031 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
10032 self.show_code_actions = Some(show_code_actions);
10033 cx.notify();
10034 }
10035
10036 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
10037 self.show_wrap_guides = Some(show_wrap_guides);
10038 cx.notify();
10039 }
10040
10041 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
10042 self.show_indent_guides = Some(show_indent_guides);
10043 cx.notify();
10044 }
10045
10046 pub fn reveal_in_finder(&mut self, _: &RevealInFinder, cx: &mut ViewContext<Self>) {
10047 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10048 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10049 cx.reveal_path(&file.abs_path(cx));
10050 }
10051 }
10052 }
10053
10054 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
10055 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10056 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10057 if let Some(path) = file.abs_path(cx).to_str() {
10058 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10059 }
10060 }
10061 }
10062 }
10063
10064 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
10065 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10066 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
10067 if let Some(path) = file.path().to_str() {
10068 cx.write_to_clipboard(ClipboardItem::new(path.to_string()));
10069 }
10070 }
10071 }
10072 }
10073
10074 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
10075 self.show_git_blame_gutter = !self.show_git_blame_gutter;
10076
10077 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
10078 self.start_git_blame(true, cx);
10079 }
10080
10081 cx.notify();
10082 }
10083
10084 pub fn toggle_git_blame_inline(
10085 &mut self,
10086 _: &ToggleGitBlameInline,
10087 cx: &mut ViewContext<Self>,
10088 ) {
10089 self.toggle_git_blame_inline_internal(true, cx);
10090 cx.notify();
10091 }
10092
10093 pub fn git_blame_inline_enabled(&self) -> bool {
10094 self.git_blame_inline_enabled
10095 }
10096
10097 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10098 if let Some(project) = self.project.as_ref() {
10099 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
10100 return;
10101 };
10102
10103 if buffer.read(cx).file().is_none() {
10104 return;
10105 }
10106
10107 let focused = self.focus_handle(cx).contains_focused(cx);
10108
10109 let project = project.clone();
10110 let blame =
10111 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
10112 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
10113 self.blame = Some(blame);
10114 }
10115 }
10116
10117 fn toggle_git_blame_inline_internal(
10118 &mut self,
10119 user_triggered: bool,
10120 cx: &mut ViewContext<Self>,
10121 ) {
10122 if self.git_blame_inline_enabled {
10123 self.git_blame_inline_enabled = false;
10124 self.show_git_blame_inline = false;
10125 self.show_git_blame_inline_delay_task.take();
10126 } else {
10127 self.git_blame_inline_enabled = true;
10128 self.start_git_blame_inline(user_triggered, cx);
10129 }
10130
10131 cx.notify();
10132 }
10133
10134 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
10135 self.start_git_blame(user_triggered, cx);
10136
10137 if ProjectSettings::get_global(cx)
10138 .git
10139 .inline_blame_delay()
10140 .is_some()
10141 {
10142 self.start_inline_blame_timer(cx);
10143 } else {
10144 self.show_git_blame_inline = true
10145 }
10146 }
10147
10148 pub fn blame(&self) -> Option<&Model<GitBlame>> {
10149 self.blame.as_ref()
10150 }
10151
10152 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
10153 self.show_git_blame_gutter && self.has_blame_entries(cx)
10154 }
10155
10156 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
10157 self.show_git_blame_inline
10158 && self.focus_handle.is_focused(cx)
10159 && !self.newest_selection_head_on_empty_line(cx)
10160 && self.has_blame_entries(cx)
10161 }
10162
10163 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
10164 self.blame()
10165 .map_or(false, |blame| blame.read(cx).has_generated_entries())
10166 }
10167
10168 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
10169 let cursor_anchor = self.selections.newest_anchor().head();
10170
10171 let snapshot = self.buffer.read(cx).snapshot(cx);
10172 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
10173
10174 snapshot.line_len(buffer_row) == 0
10175 }
10176
10177 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Result<url::Url> {
10178 let (path, selection, repo) = maybe!({
10179 let project_handle = self.project.as_ref()?.clone();
10180 let project = project_handle.read(cx);
10181
10182 let selection = self.selections.newest::<Point>(cx);
10183 let selection_range = selection.range();
10184
10185 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
10186 (buffer, selection_range.start.row..selection_range.end.row)
10187 } else {
10188 let buffer_ranges = self
10189 .buffer()
10190 .read(cx)
10191 .range_to_buffer_ranges(selection_range, cx);
10192
10193 let (buffer, range, _) = if selection.reversed {
10194 buffer_ranges.first()
10195 } else {
10196 buffer_ranges.last()
10197 }?;
10198
10199 let snapshot = buffer.read(cx).snapshot();
10200 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
10201 ..text::ToPoint::to_point(&range.end, &snapshot).row;
10202 (buffer.clone(), selection)
10203 };
10204
10205 let path = buffer
10206 .read(cx)
10207 .file()?
10208 .as_local()?
10209 .path()
10210 .to_str()?
10211 .to_string();
10212 let repo = project.get_repo(&buffer.read(cx).project_path(cx)?, cx)?;
10213 Some((path, selection, repo))
10214 })
10215 .ok_or_else(|| anyhow!("unable to open git repository"))?;
10216
10217 const REMOTE_NAME: &str = "origin";
10218 let origin_url = repo
10219 .remote_url(REMOTE_NAME)
10220 .ok_or_else(|| anyhow!("remote \"{REMOTE_NAME}\" not found"))?;
10221 let sha = repo
10222 .head_sha()
10223 .ok_or_else(|| anyhow!("failed to read HEAD SHA"))?;
10224
10225 let (provider, remote) =
10226 parse_git_remote_url(GitHostingProviderRegistry::default_global(cx), &origin_url)
10227 .ok_or_else(|| anyhow!("failed to parse Git remote URL"))?;
10228
10229 Ok(provider.build_permalink(
10230 remote,
10231 BuildPermalinkParams {
10232 sha: &sha,
10233 path: &path,
10234 selection: Some(selection),
10235 },
10236 ))
10237 }
10238
10239 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
10240 let permalink = self.get_permalink_to_line(cx);
10241
10242 match permalink {
10243 Ok(permalink) => {
10244 cx.write_to_clipboard(ClipboardItem::new(permalink.to_string()));
10245 }
10246 Err(err) => {
10247 let message = format!("Failed to copy permalink: {err}");
10248
10249 Err::<(), anyhow::Error>(err).log_err();
10250
10251 if let Some(workspace) = self.workspace() {
10252 workspace.update(cx, |workspace, cx| {
10253 struct CopyPermalinkToLine;
10254
10255 workspace.show_toast(
10256 Toast::new(NotificationId::unique::<CopyPermalinkToLine>(), message),
10257 cx,
10258 )
10259 })
10260 }
10261 }
10262 }
10263 }
10264
10265 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
10266 let permalink = self.get_permalink_to_line(cx);
10267
10268 match permalink {
10269 Ok(permalink) => {
10270 cx.open_url(permalink.as_ref());
10271 }
10272 Err(err) => {
10273 let message = format!("Failed to open permalink: {err}");
10274
10275 Err::<(), anyhow::Error>(err).log_err();
10276
10277 if let Some(workspace) = self.workspace() {
10278 workspace.update(cx, |workspace, cx| {
10279 struct OpenPermalinkToLine;
10280
10281 workspace.show_toast(
10282 Toast::new(NotificationId::unique::<OpenPermalinkToLine>(), message),
10283 cx,
10284 )
10285 })
10286 }
10287 }
10288 }
10289 }
10290
10291 /// Adds or removes (on `None` color) a highlight for the rows corresponding to the anchor range given.
10292 /// On matching anchor range, replaces the old highlight; does not clear the other existing highlights.
10293 /// If multiple anchor ranges will produce highlights for the same row, the last range added will be used.
10294 pub fn highlight_rows<T: 'static>(
10295 &mut self,
10296 rows: RangeInclusive<Anchor>,
10297 color: Option<Hsla>,
10298 should_autoscroll: bool,
10299 cx: &mut ViewContext<Self>,
10300 ) {
10301 let snapshot = self.buffer().read(cx).snapshot(cx);
10302 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
10303 let existing_highlight_index = row_highlights.binary_search_by(|highlight| {
10304 highlight
10305 .range
10306 .start()
10307 .cmp(&rows.start(), &snapshot)
10308 .then(highlight.range.end().cmp(&rows.end(), &snapshot))
10309 });
10310 match (color, existing_highlight_index) {
10311 (Some(_), Ok(ix)) | (_, Err(ix)) => row_highlights.insert(
10312 ix,
10313 RowHighlight {
10314 index: post_inc(&mut self.highlight_order),
10315 range: rows,
10316 should_autoscroll,
10317 color,
10318 },
10319 ),
10320 (None, Ok(i)) => {
10321 row_highlights.remove(i);
10322 }
10323 }
10324 }
10325
10326 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
10327 pub fn clear_row_highlights<T: 'static>(&mut self) {
10328 self.highlighted_rows.remove(&TypeId::of::<T>());
10329 }
10330
10331 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
10332 pub fn highlighted_rows<T: 'static>(
10333 &self,
10334 ) -> Option<impl Iterator<Item = (&RangeInclusive<Anchor>, Option<&Hsla>)>> {
10335 Some(
10336 self.highlighted_rows
10337 .get(&TypeId::of::<T>())?
10338 .iter()
10339 .map(|highlight| (&highlight.range, highlight.color.as_ref())),
10340 )
10341 }
10342
10343 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
10344 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
10345 /// Allows to ignore certain kinds of highlights.
10346 pub fn highlighted_display_rows(
10347 &mut self,
10348 cx: &mut WindowContext,
10349 ) -> BTreeMap<DisplayRow, Hsla> {
10350 let snapshot = self.snapshot(cx);
10351 let mut used_highlight_orders = HashMap::default();
10352 self.highlighted_rows
10353 .iter()
10354 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
10355 .fold(
10356 BTreeMap::<DisplayRow, Hsla>::new(),
10357 |mut unique_rows, highlight| {
10358 let start_row = highlight.range.start().to_display_point(&snapshot).row();
10359 let end_row = highlight.range.end().to_display_point(&snapshot).row();
10360 for row in start_row.0..=end_row.0 {
10361 let used_index =
10362 used_highlight_orders.entry(row).or_insert(highlight.index);
10363 if highlight.index >= *used_index {
10364 *used_index = highlight.index;
10365 match highlight.color {
10366 Some(hsla) => unique_rows.insert(DisplayRow(row), hsla),
10367 None => unique_rows.remove(&DisplayRow(row)),
10368 };
10369 }
10370 }
10371 unique_rows
10372 },
10373 )
10374 }
10375
10376 pub fn highlighted_display_row_for_autoscroll(
10377 &self,
10378 snapshot: &DisplaySnapshot,
10379 ) -> Option<DisplayRow> {
10380 self.highlighted_rows
10381 .values()
10382 .flat_map(|highlighted_rows| highlighted_rows.iter())
10383 .filter_map(|highlight| {
10384 if highlight.color.is_none() || !highlight.should_autoscroll {
10385 return None;
10386 }
10387 Some(highlight.range.start().to_display_point(&snapshot).row())
10388 })
10389 .min()
10390 }
10391
10392 pub fn set_search_within_ranges(
10393 &mut self,
10394 ranges: &[Range<Anchor>],
10395 cx: &mut ViewContext<Self>,
10396 ) {
10397 self.highlight_background::<SearchWithinRange>(
10398 ranges,
10399 |colors| colors.editor_document_highlight_read_background,
10400 cx,
10401 )
10402 }
10403
10404 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
10405 self.clear_background_highlights::<SearchWithinRange>(cx);
10406 }
10407
10408 pub fn highlight_background<T: 'static>(
10409 &mut self,
10410 ranges: &[Range<Anchor>],
10411 color_fetcher: fn(&ThemeColors) -> Hsla,
10412 cx: &mut ViewContext<Self>,
10413 ) {
10414 let snapshot = self.snapshot(cx);
10415 // this is to try and catch a panic sooner
10416 for range in ranges {
10417 snapshot
10418 .buffer_snapshot
10419 .summary_for_anchor::<usize>(&range.start);
10420 snapshot
10421 .buffer_snapshot
10422 .summary_for_anchor::<usize>(&range.end);
10423 }
10424
10425 self.background_highlights
10426 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10427 self.scrollbar_marker_state.dirty = true;
10428 cx.notify();
10429 }
10430
10431 pub fn clear_background_highlights<T: 'static>(
10432 &mut self,
10433 cx: &mut ViewContext<Self>,
10434 ) -> Option<BackgroundHighlight> {
10435 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
10436 if !text_highlights.1.is_empty() {
10437 self.scrollbar_marker_state.dirty = true;
10438 cx.notify();
10439 }
10440 Some(text_highlights)
10441 }
10442
10443 pub fn highlight_gutter<T: 'static>(
10444 &mut self,
10445 ranges: &[Range<Anchor>],
10446 color_fetcher: fn(&AppContext) -> Hsla,
10447 cx: &mut ViewContext<Self>,
10448 ) {
10449 self.gutter_highlights
10450 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
10451 cx.notify();
10452 }
10453
10454 pub fn clear_gutter_highlights<T: 'static>(
10455 &mut self,
10456 cx: &mut ViewContext<Self>,
10457 ) -> Option<GutterHighlight> {
10458 cx.notify();
10459 self.gutter_highlights.remove(&TypeId::of::<T>())
10460 }
10461
10462 #[cfg(feature = "test-support")]
10463 pub fn all_text_background_highlights(
10464 &mut self,
10465 cx: &mut ViewContext<Self>,
10466 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10467 let snapshot = self.snapshot(cx);
10468 let buffer = &snapshot.buffer_snapshot;
10469 let start = buffer.anchor_before(0);
10470 let end = buffer.anchor_after(buffer.len());
10471 let theme = cx.theme().colors();
10472 self.background_highlights_in_range(start..end, &snapshot, theme)
10473 }
10474
10475 #[cfg(feature = "test-support")]
10476 pub fn search_background_highlights(
10477 &mut self,
10478 cx: &mut ViewContext<Self>,
10479 ) -> Vec<Range<Point>> {
10480 let snapshot = self.buffer().read(cx).snapshot(cx);
10481
10482 let highlights = self
10483 .background_highlights
10484 .get(&TypeId::of::<items::BufferSearchHighlights>());
10485
10486 if let Some((_color, ranges)) = highlights {
10487 ranges
10488 .iter()
10489 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
10490 .collect_vec()
10491 } else {
10492 vec![]
10493 }
10494 }
10495
10496 fn document_highlights_for_position<'a>(
10497 &'a self,
10498 position: Anchor,
10499 buffer: &'a MultiBufferSnapshot,
10500 ) -> impl 'a + Iterator<Item = &Range<Anchor>> {
10501 let read_highlights = self
10502 .background_highlights
10503 .get(&TypeId::of::<DocumentHighlightRead>())
10504 .map(|h| &h.1);
10505 let write_highlights = self
10506 .background_highlights
10507 .get(&TypeId::of::<DocumentHighlightWrite>())
10508 .map(|h| &h.1);
10509 let left_position = position.bias_left(buffer);
10510 let right_position = position.bias_right(buffer);
10511 read_highlights
10512 .into_iter()
10513 .chain(write_highlights)
10514 .flat_map(move |ranges| {
10515 let start_ix = match ranges.binary_search_by(|probe| {
10516 let cmp = probe.end.cmp(&left_position, buffer);
10517 if cmp.is_ge() {
10518 Ordering::Greater
10519 } else {
10520 Ordering::Less
10521 }
10522 }) {
10523 Ok(i) | Err(i) => i,
10524 };
10525
10526 ranges[start_ix..]
10527 .iter()
10528 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
10529 })
10530 }
10531
10532 pub fn has_background_highlights<T: 'static>(&self) -> bool {
10533 self.background_highlights
10534 .get(&TypeId::of::<T>())
10535 .map_or(false, |(_, highlights)| !highlights.is_empty())
10536 }
10537
10538 pub fn background_highlights_in_range(
10539 &self,
10540 search_range: Range<Anchor>,
10541 display_snapshot: &DisplaySnapshot,
10542 theme: &ThemeColors,
10543 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10544 let mut results = Vec::new();
10545 for (color_fetcher, ranges) in self.background_highlights.values() {
10546 let color = color_fetcher(theme);
10547 let start_ix = match ranges.binary_search_by(|probe| {
10548 let cmp = probe
10549 .end
10550 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10551 if cmp.is_gt() {
10552 Ordering::Greater
10553 } else {
10554 Ordering::Less
10555 }
10556 }) {
10557 Ok(i) | Err(i) => i,
10558 };
10559 for range in &ranges[start_ix..] {
10560 if range
10561 .start
10562 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10563 .is_ge()
10564 {
10565 break;
10566 }
10567
10568 let start = range.start.to_display_point(&display_snapshot);
10569 let end = range.end.to_display_point(&display_snapshot);
10570 results.push((start..end, color))
10571 }
10572 }
10573 results
10574 }
10575
10576 pub fn background_highlight_row_ranges<T: 'static>(
10577 &self,
10578 search_range: Range<Anchor>,
10579 display_snapshot: &DisplaySnapshot,
10580 count: usize,
10581 ) -> Vec<RangeInclusive<DisplayPoint>> {
10582 let mut results = Vec::new();
10583 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
10584 return vec![];
10585 };
10586
10587 let start_ix = match ranges.binary_search_by(|probe| {
10588 let cmp = probe
10589 .end
10590 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10591 if cmp.is_gt() {
10592 Ordering::Greater
10593 } else {
10594 Ordering::Less
10595 }
10596 }) {
10597 Ok(i) | Err(i) => i,
10598 };
10599 let mut push_region = |start: Option<Point>, end: Option<Point>| {
10600 if let (Some(start_display), Some(end_display)) = (start, end) {
10601 results.push(
10602 start_display.to_display_point(display_snapshot)
10603 ..=end_display.to_display_point(display_snapshot),
10604 );
10605 }
10606 };
10607 let mut start_row: Option<Point> = None;
10608 let mut end_row: Option<Point> = None;
10609 if ranges.len() > count {
10610 return Vec::new();
10611 }
10612 for range in &ranges[start_ix..] {
10613 if range
10614 .start
10615 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10616 .is_ge()
10617 {
10618 break;
10619 }
10620 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
10621 if let Some(current_row) = &end_row {
10622 if end.row == current_row.row {
10623 continue;
10624 }
10625 }
10626 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
10627 if start_row.is_none() {
10628 assert_eq!(end_row, None);
10629 start_row = Some(start);
10630 end_row = Some(end);
10631 continue;
10632 }
10633 if let Some(current_end) = end_row.as_mut() {
10634 if start.row > current_end.row + 1 {
10635 push_region(start_row, end_row);
10636 start_row = Some(start);
10637 end_row = Some(end);
10638 } else {
10639 // Merge two hunks.
10640 *current_end = end;
10641 }
10642 } else {
10643 unreachable!();
10644 }
10645 }
10646 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
10647 push_region(start_row, end_row);
10648 results
10649 }
10650
10651 pub fn gutter_highlights_in_range(
10652 &self,
10653 search_range: Range<Anchor>,
10654 display_snapshot: &DisplaySnapshot,
10655 cx: &AppContext,
10656 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
10657 let mut results = Vec::new();
10658 for (color_fetcher, ranges) in self.gutter_highlights.values() {
10659 let color = color_fetcher(cx);
10660 let start_ix = match ranges.binary_search_by(|probe| {
10661 let cmp = probe
10662 .end
10663 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
10664 if cmp.is_gt() {
10665 Ordering::Greater
10666 } else {
10667 Ordering::Less
10668 }
10669 }) {
10670 Ok(i) | Err(i) => i,
10671 };
10672 for range in &ranges[start_ix..] {
10673 if range
10674 .start
10675 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
10676 .is_ge()
10677 {
10678 break;
10679 }
10680
10681 let start = range.start.to_display_point(&display_snapshot);
10682 let end = range.end.to_display_point(&display_snapshot);
10683 results.push((start..end, color))
10684 }
10685 }
10686 results
10687 }
10688
10689 /// Get the text ranges corresponding to the redaction query
10690 pub fn redacted_ranges(
10691 &self,
10692 search_range: Range<Anchor>,
10693 display_snapshot: &DisplaySnapshot,
10694 cx: &WindowContext,
10695 ) -> Vec<Range<DisplayPoint>> {
10696 display_snapshot
10697 .buffer_snapshot
10698 .redacted_ranges(search_range, |file| {
10699 if let Some(file) = file {
10700 file.is_private()
10701 && EditorSettings::get(Some(file.as_ref().into()), cx).redact_private_values
10702 } else {
10703 false
10704 }
10705 })
10706 .map(|range| {
10707 range.start.to_display_point(display_snapshot)
10708 ..range.end.to_display_point(display_snapshot)
10709 })
10710 .collect()
10711 }
10712
10713 pub fn highlight_text<T: 'static>(
10714 &mut self,
10715 ranges: Vec<Range<Anchor>>,
10716 style: HighlightStyle,
10717 cx: &mut ViewContext<Self>,
10718 ) {
10719 self.display_map.update(cx, |map, _| {
10720 map.highlight_text(TypeId::of::<T>(), ranges, style)
10721 });
10722 cx.notify();
10723 }
10724
10725 pub(crate) fn highlight_inlays<T: 'static>(
10726 &mut self,
10727 highlights: Vec<InlayHighlight>,
10728 style: HighlightStyle,
10729 cx: &mut ViewContext<Self>,
10730 ) {
10731 self.display_map.update(cx, |map, _| {
10732 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
10733 });
10734 cx.notify();
10735 }
10736
10737 pub fn text_highlights<'a, T: 'static>(
10738 &'a self,
10739 cx: &'a AppContext,
10740 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
10741 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
10742 }
10743
10744 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
10745 let cleared = self
10746 .display_map
10747 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
10748 if cleared {
10749 cx.notify();
10750 }
10751 }
10752
10753 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
10754 (self.read_only(cx) || self.blink_manager.read(cx).visible())
10755 && self.focus_handle.is_focused(cx)
10756 }
10757
10758 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
10759 cx.notify();
10760 }
10761
10762 fn on_buffer_event(
10763 &mut self,
10764 multibuffer: Model<MultiBuffer>,
10765 event: &multi_buffer::Event,
10766 cx: &mut ViewContext<Self>,
10767 ) {
10768 match event {
10769 multi_buffer::Event::Edited {
10770 singleton_buffer_edited,
10771 } => {
10772 self.scrollbar_marker_state.dirty = true;
10773 self.active_indent_guides_state.dirty = true;
10774 self.refresh_active_diagnostics(cx);
10775 self.refresh_code_actions(cx);
10776 if self.has_active_inline_completion(cx) {
10777 self.update_visible_inline_completion(cx);
10778 }
10779 cx.emit(EditorEvent::BufferEdited);
10780 cx.emit(SearchEvent::MatchesInvalidated);
10781 if *singleton_buffer_edited {
10782 if let Some(project) = &self.project {
10783 let project = project.read(cx);
10784 let languages_affected = multibuffer
10785 .read(cx)
10786 .all_buffers()
10787 .into_iter()
10788 .filter_map(|buffer| {
10789 let buffer = buffer.read(cx);
10790 let language = buffer.language()?;
10791 if project.is_local()
10792 && project.language_servers_for_buffer(buffer, cx).count() == 0
10793 {
10794 None
10795 } else {
10796 Some(language)
10797 }
10798 })
10799 .cloned()
10800 .collect::<HashSet<_>>();
10801 if !languages_affected.is_empty() {
10802 self.refresh_inlay_hints(
10803 InlayHintRefreshReason::BufferEdited(languages_affected),
10804 cx,
10805 );
10806 }
10807 }
10808 }
10809
10810 let Some(project) = &self.project else { return };
10811 let telemetry = project.read(cx).client().telemetry().clone();
10812 refresh_linked_ranges(self, cx);
10813 telemetry.log_edit_event("editor");
10814 }
10815 multi_buffer::Event::ExcerptsAdded {
10816 buffer,
10817 predecessor,
10818 excerpts,
10819 } => {
10820 self.tasks_update_task = Some(self.refresh_runnables(cx));
10821 cx.emit(EditorEvent::ExcerptsAdded {
10822 buffer: buffer.clone(),
10823 predecessor: *predecessor,
10824 excerpts: excerpts.clone(),
10825 });
10826 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
10827 }
10828 multi_buffer::Event::ExcerptsRemoved { ids } => {
10829 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
10830 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
10831 }
10832 multi_buffer::Event::Reparsed => {
10833 self.tasks_update_task = Some(self.refresh_runnables(cx));
10834
10835 cx.emit(EditorEvent::Reparsed);
10836 }
10837 multi_buffer::Event::LanguageChanged => {
10838 linked_editing_ranges::refresh_linked_ranges(self, cx);
10839 cx.emit(EditorEvent::Reparsed);
10840 cx.notify();
10841 }
10842 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
10843 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
10844 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
10845 cx.emit(EditorEvent::TitleChanged)
10846 }
10847 multi_buffer::Event::DiffBaseChanged => {
10848 self.scrollbar_marker_state.dirty = true;
10849 cx.emit(EditorEvent::DiffBaseChanged);
10850 cx.notify();
10851 }
10852 multi_buffer::Event::DiffUpdated { buffer } => {
10853 self.sync_expanded_diff_hunks(buffer.clone(), cx);
10854 cx.notify();
10855 }
10856 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
10857 multi_buffer::Event::DiagnosticsUpdated => {
10858 self.refresh_active_diagnostics(cx);
10859 self.scrollbar_marker_state.dirty = true;
10860 cx.notify();
10861 }
10862 _ => {}
10863 };
10864 }
10865
10866 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
10867 cx.notify();
10868 }
10869
10870 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
10871 self.refresh_inline_completion(true, cx);
10872 self.refresh_inlay_hints(
10873 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
10874 self.selections.newest_anchor().head(),
10875 &self.buffer.read(cx).snapshot(cx),
10876 cx,
10877 )),
10878 cx,
10879 );
10880 let editor_settings = EditorSettings::get_global(cx);
10881 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
10882 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
10883
10884 if self.mode == EditorMode::Full {
10885 let inline_blame_enabled = ProjectSettings::get_global(cx).git.inline_blame_enabled();
10886 if self.git_blame_inline_enabled != inline_blame_enabled {
10887 self.toggle_git_blame_inline_internal(false, cx);
10888 }
10889 }
10890
10891 cx.notify();
10892 }
10893
10894 pub fn set_searchable(&mut self, searchable: bool) {
10895 self.searchable = searchable;
10896 }
10897
10898 pub fn searchable(&self) -> bool {
10899 self.searchable
10900 }
10901
10902 fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
10903 self.open_excerpts_common(true, cx)
10904 }
10905
10906 fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
10907 self.open_excerpts_common(false, cx)
10908 }
10909
10910 fn open_excerpts_common(&mut self, split: bool, cx: &mut ViewContext<Self>) {
10911 let buffer = self.buffer.read(cx);
10912 if buffer.is_singleton() {
10913 cx.propagate();
10914 return;
10915 }
10916
10917 let Some(workspace) = self.workspace() else {
10918 cx.propagate();
10919 return;
10920 };
10921
10922 let mut new_selections_by_buffer = HashMap::default();
10923 for selection in self.selections.all::<usize>(cx) {
10924 for (buffer, mut range, _) in
10925 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
10926 {
10927 if selection.reversed {
10928 mem::swap(&mut range.start, &mut range.end);
10929 }
10930 new_selections_by_buffer
10931 .entry(buffer)
10932 .or_insert(Vec::new())
10933 .push(range)
10934 }
10935 }
10936
10937 // We defer the pane interaction because we ourselves are a workspace item
10938 // and activating a new item causes the pane to call a method on us reentrantly,
10939 // which panics if we're on the stack.
10940 cx.window_context().defer(move |cx| {
10941 workspace.update(cx, |workspace, cx| {
10942 let pane = if split {
10943 workspace.adjacent_pane(cx)
10944 } else {
10945 workspace.active_pane().clone()
10946 };
10947
10948 for (buffer, ranges) in new_selections_by_buffer {
10949 let editor = workspace.open_project_item::<Self>(pane.clone(), buffer, cx);
10950 editor.update(cx, |editor, cx| {
10951 editor.change_selections(Some(Autoscroll::newest()), cx, |s| {
10952 s.select_ranges(ranges);
10953 });
10954 });
10955 }
10956 })
10957 });
10958 }
10959
10960 fn jump(
10961 &mut self,
10962 path: ProjectPath,
10963 position: Point,
10964 anchor: language::Anchor,
10965 offset_from_top: u32,
10966 cx: &mut ViewContext<Self>,
10967 ) {
10968 let workspace = self.workspace();
10969 cx.spawn(|_, mut cx| async move {
10970 let workspace = workspace.ok_or_else(|| anyhow!("cannot jump without workspace"))?;
10971 let editor = workspace.update(&mut cx, |workspace, cx| {
10972 // Reset the preview item id before opening the new item
10973 workspace.active_pane().update(cx, |pane, cx| {
10974 pane.set_preview_item_id(None, cx);
10975 });
10976 workspace.open_path_preview(path, None, true, true, cx)
10977 })?;
10978 let editor = editor
10979 .await?
10980 .downcast::<Editor>()
10981 .ok_or_else(|| anyhow!("opened item was not an editor"))?
10982 .downgrade();
10983 editor.update(&mut cx, |editor, cx| {
10984 let buffer = editor
10985 .buffer()
10986 .read(cx)
10987 .as_singleton()
10988 .ok_or_else(|| anyhow!("cannot jump in a multi-buffer"))?;
10989 let buffer = buffer.read(cx);
10990 let cursor = if buffer.can_resolve(&anchor) {
10991 language::ToPoint::to_point(&anchor, buffer)
10992 } else {
10993 buffer.clip_point(position, Bias::Left)
10994 };
10995
10996 let nav_history = editor.nav_history.take();
10997 editor.change_selections(
10998 Some(Autoscroll::top_relative(offset_from_top as usize)),
10999 cx,
11000 |s| {
11001 s.select_ranges([cursor..cursor]);
11002 },
11003 );
11004 editor.nav_history = nav_history;
11005
11006 anyhow::Ok(())
11007 })??;
11008
11009 anyhow::Ok(())
11010 })
11011 .detach_and_log_err(cx);
11012 }
11013
11014 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
11015 let snapshot = self.buffer.read(cx).read(cx);
11016 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
11017 Some(
11018 ranges
11019 .iter()
11020 .map(move |range| {
11021 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
11022 })
11023 .collect(),
11024 )
11025 }
11026
11027 fn selection_replacement_ranges(
11028 &self,
11029 range: Range<OffsetUtf16>,
11030 cx: &AppContext,
11031 ) -> Vec<Range<OffsetUtf16>> {
11032 let selections = self.selections.all::<OffsetUtf16>(cx);
11033 let newest_selection = selections
11034 .iter()
11035 .max_by_key(|selection| selection.id)
11036 .unwrap();
11037 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
11038 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
11039 let snapshot = self.buffer.read(cx).read(cx);
11040 selections
11041 .into_iter()
11042 .map(|mut selection| {
11043 selection.start.0 =
11044 (selection.start.0 as isize).saturating_add(start_delta) as usize;
11045 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
11046 snapshot.clip_offset_utf16(selection.start, Bias::Left)
11047 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
11048 })
11049 .collect()
11050 }
11051
11052 fn report_editor_event(
11053 &self,
11054 operation: &'static str,
11055 file_extension: Option<String>,
11056 cx: &AppContext,
11057 ) {
11058 if cfg!(any(test, feature = "test-support")) {
11059 return;
11060 }
11061
11062 let Some(project) = &self.project else { return };
11063
11064 // If None, we are in a file without an extension
11065 let file = self
11066 .buffer
11067 .read(cx)
11068 .as_singleton()
11069 .and_then(|b| b.read(cx).file());
11070 let file_extension = file_extension.or(file
11071 .as_ref()
11072 .and_then(|file| Path::new(file.file_name(cx)).extension())
11073 .and_then(|e| e.to_str())
11074 .map(|a| a.to_string()));
11075
11076 let vim_mode = cx
11077 .global::<SettingsStore>()
11078 .raw_user_settings()
11079 .get("vim_mode")
11080 == Some(&serde_json::Value::Bool(true));
11081
11082 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
11083 == language::language_settings::InlineCompletionProvider::Copilot;
11084 let copilot_enabled_for_language = self
11085 .buffer
11086 .read(cx)
11087 .settings_at(0, cx)
11088 .show_inline_completions;
11089
11090 let telemetry = project.read(cx).client().telemetry().clone();
11091 telemetry.report_editor_event(
11092 file_extension,
11093 vim_mode,
11094 operation,
11095 copilot_enabled,
11096 copilot_enabled_for_language,
11097 )
11098 }
11099
11100 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
11101 /// with each line being an array of {text, highlight} objects.
11102 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
11103 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
11104 return;
11105 };
11106
11107 #[derive(Serialize)]
11108 struct Chunk<'a> {
11109 text: String,
11110 highlight: Option<&'a str>,
11111 }
11112
11113 let snapshot = buffer.read(cx).snapshot();
11114 let range = self
11115 .selected_text_range(cx)
11116 .and_then(|selected_range| {
11117 if selected_range.is_empty() {
11118 None
11119 } else {
11120 Some(selected_range)
11121 }
11122 })
11123 .unwrap_or_else(|| 0..snapshot.len());
11124
11125 let chunks = snapshot.chunks(range, true);
11126 let mut lines = Vec::new();
11127 let mut line: VecDeque<Chunk> = VecDeque::new();
11128
11129 let Some(style) = self.style.as_ref() else {
11130 return;
11131 };
11132
11133 for chunk in chunks {
11134 let highlight = chunk
11135 .syntax_highlight_id
11136 .and_then(|id| id.name(&style.syntax));
11137 let mut chunk_lines = chunk.text.split('\n').peekable();
11138 while let Some(text) = chunk_lines.next() {
11139 let mut merged_with_last_token = false;
11140 if let Some(last_token) = line.back_mut() {
11141 if last_token.highlight == highlight {
11142 last_token.text.push_str(text);
11143 merged_with_last_token = true;
11144 }
11145 }
11146
11147 if !merged_with_last_token {
11148 line.push_back(Chunk {
11149 text: text.into(),
11150 highlight,
11151 });
11152 }
11153
11154 if chunk_lines.peek().is_some() {
11155 if line.len() > 1 && line.front().unwrap().text.is_empty() {
11156 line.pop_front();
11157 }
11158 if line.len() > 1 && line.back().unwrap().text.is_empty() {
11159 line.pop_back();
11160 }
11161
11162 lines.push(mem::take(&mut line));
11163 }
11164 }
11165 }
11166
11167 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
11168 return;
11169 };
11170 cx.write_to_clipboard(ClipboardItem::new(lines));
11171 }
11172
11173 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
11174 &self.inlay_hint_cache
11175 }
11176
11177 pub fn replay_insert_event(
11178 &mut self,
11179 text: &str,
11180 relative_utf16_range: Option<Range<isize>>,
11181 cx: &mut ViewContext<Self>,
11182 ) {
11183 if !self.input_enabled {
11184 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11185 return;
11186 }
11187 if let Some(relative_utf16_range) = relative_utf16_range {
11188 let selections = self.selections.all::<OffsetUtf16>(cx);
11189 self.change_selections(None, cx, |s| {
11190 let new_ranges = selections.into_iter().map(|range| {
11191 let start = OffsetUtf16(
11192 range
11193 .head()
11194 .0
11195 .saturating_add_signed(relative_utf16_range.start),
11196 );
11197 let end = OffsetUtf16(
11198 range
11199 .head()
11200 .0
11201 .saturating_add_signed(relative_utf16_range.end),
11202 );
11203 start..end
11204 });
11205 s.select_ranges(new_ranges);
11206 });
11207 }
11208
11209 self.handle_input(text, cx);
11210 }
11211
11212 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
11213 let Some(project) = self.project.as_ref() else {
11214 return false;
11215 };
11216 let project = project.read(cx);
11217
11218 let mut supports = false;
11219 self.buffer().read(cx).for_each_buffer(|buffer| {
11220 if !supports {
11221 supports = project
11222 .language_servers_for_buffer(buffer.read(cx), cx)
11223 .any(
11224 |(_, server)| match server.capabilities().inlay_hint_provider {
11225 Some(lsp::OneOf::Left(enabled)) => enabled,
11226 Some(lsp::OneOf::Right(_)) => true,
11227 None => false,
11228 },
11229 )
11230 }
11231 });
11232 supports
11233 }
11234
11235 pub fn focus(&self, cx: &mut WindowContext) {
11236 cx.focus(&self.focus_handle)
11237 }
11238
11239 pub fn is_focused(&self, cx: &WindowContext) -> bool {
11240 self.focus_handle.is_focused(cx)
11241 }
11242
11243 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
11244 cx.emit(EditorEvent::Focused);
11245 if let Some(rename) = self.pending_rename.as_ref() {
11246 let rename_editor_focus_handle = rename.editor.read(cx).focus_handle.clone();
11247 cx.focus(&rename_editor_focus_handle);
11248 } else {
11249 if let Some(blame) = self.blame.as_ref() {
11250 blame.update(cx, GitBlame::focus)
11251 }
11252
11253 self.blink_manager.update(cx, BlinkManager::enable);
11254 self.show_cursor_names(cx);
11255 self.buffer.update(cx, |buffer, cx| {
11256 buffer.finalize_last_transaction(cx);
11257 if self.leader_peer_id.is_none() {
11258 buffer.set_active_selections(
11259 &self.selections.disjoint_anchors(),
11260 self.selections.line_mode,
11261 self.cursor_shape,
11262 cx,
11263 );
11264 }
11265 });
11266 }
11267 }
11268
11269 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
11270 self.blink_manager.update(cx, BlinkManager::disable);
11271 self.buffer
11272 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
11273
11274 if let Some(blame) = self.blame.as_ref() {
11275 blame.update(cx, GitBlame::blur)
11276 }
11277 self.hide_context_menu(cx);
11278 hide_hover(self, cx);
11279 cx.emit(EditorEvent::Blurred);
11280 cx.notify();
11281 }
11282
11283 pub fn register_action<A: Action>(
11284 &mut self,
11285 listener: impl Fn(&A, &mut WindowContext) + 'static,
11286 ) -> &mut Self {
11287 let listener = Arc::new(listener);
11288
11289 self.editor_actions.push(Box::new(move |cx| {
11290 let _view = cx.view().clone();
11291 let cx = cx.window_context();
11292 let listener = listener.clone();
11293 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
11294 let action = action.downcast_ref().unwrap();
11295 if phase == DispatchPhase::Bubble {
11296 listener(action, cx)
11297 }
11298 })
11299 }));
11300 self
11301 }
11302}
11303
11304fn hunks_for_selections(
11305 multi_buffer_snapshot: &MultiBufferSnapshot,
11306 selections: &[Selection<Anchor>],
11307) -> Vec<DiffHunk<MultiBufferRow>> {
11308 let mut hunks = Vec::with_capacity(selections.len());
11309 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
11310 HashMap::default();
11311 let buffer_rows_for_selections = selections.iter().map(|selection| {
11312 let head = selection.head();
11313 let tail = selection.tail();
11314 let start = MultiBufferRow(tail.to_point(&multi_buffer_snapshot).row);
11315 let end = MultiBufferRow(head.to_point(&multi_buffer_snapshot).row);
11316 if start > end {
11317 end..start
11318 } else {
11319 start..end
11320 }
11321 });
11322
11323 for selected_multi_buffer_rows in buffer_rows_for_selections {
11324 let query_rows =
11325 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
11326 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
11327 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
11328 // when the caret is just above or just below the deleted hunk.
11329 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
11330 let related_to_selection = if allow_adjacent {
11331 hunk.associated_range.overlaps(&query_rows)
11332 || hunk.associated_range.start == query_rows.end
11333 || hunk.associated_range.end == query_rows.start
11334 } else {
11335 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
11336 // `hunk.associated_range` is exclusive (e.g. [2..3] means 2nd row is selected)
11337 hunk.associated_range.overlaps(&selected_multi_buffer_rows)
11338 || selected_multi_buffer_rows.end == hunk.associated_range.start
11339 };
11340 if related_to_selection {
11341 if !processed_buffer_rows
11342 .entry(hunk.buffer_id)
11343 .or_default()
11344 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
11345 {
11346 continue;
11347 }
11348 hunks.push(hunk);
11349 }
11350 }
11351 }
11352
11353 hunks
11354}
11355
11356pub trait CollaborationHub {
11357 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
11358 fn user_participant_indices<'a>(
11359 &self,
11360 cx: &'a AppContext,
11361 ) -> &'a HashMap<u64, ParticipantIndex>;
11362 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
11363}
11364
11365impl CollaborationHub for Model<Project> {
11366 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
11367 self.read(cx).collaborators()
11368 }
11369
11370 fn user_participant_indices<'a>(
11371 &self,
11372 cx: &'a AppContext,
11373 ) -> &'a HashMap<u64, ParticipantIndex> {
11374 self.read(cx).user_store().read(cx).participant_indices()
11375 }
11376
11377 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
11378 let this = self.read(cx);
11379 let user_ids = this.collaborators().values().map(|c| c.user_id);
11380 this.user_store().read_with(cx, |user_store, cx| {
11381 user_store.participant_names(user_ids, cx)
11382 })
11383 }
11384}
11385
11386pub trait CompletionProvider {
11387 fn completions(
11388 &self,
11389 buffer: &Model<Buffer>,
11390 buffer_position: text::Anchor,
11391 cx: &mut ViewContext<Editor>,
11392 ) -> Task<Result<Vec<Completion>>>;
11393
11394 fn resolve_completions(
11395 &self,
11396 buffer: Model<Buffer>,
11397 completion_indices: Vec<usize>,
11398 completions: Arc<RwLock<Box<[Completion]>>>,
11399 cx: &mut ViewContext<Editor>,
11400 ) -> Task<Result<bool>>;
11401
11402 fn apply_additional_edits_for_completion(
11403 &self,
11404 buffer: Model<Buffer>,
11405 completion: Completion,
11406 push_to_history: bool,
11407 cx: &mut ViewContext<Editor>,
11408 ) -> Task<Result<Option<language::Transaction>>>;
11409
11410 fn is_completion_trigger(
11411 &self,
11412 buffer: &Model<Buffer>,
11413 position: language::Anchor,
11414 text: &str,
11415 trigger_in_words: bool,
11416 cx: &mut ViewContext<Editor>,
11417 ) -> bool;
11418}
11419
11420impl CompletionProvider for Model<Project> {
11421 fn completions(
11422 &self,
11423 buffer: &Model<Buffer>,
11424 buffer_position: text::Anchor,
11425 cx: &mut ViewContext<Editor>,
11426 ) -> Task<Result<Vec<Completion>>> {
11427 self.update(cx, |project, cx| {
11428 project.completions(&buffer, buffer_position, cx)
11429 })
11430 }
11431
11432 fn resolve_completions(
11433 &self,
11434 buffer: Model<Buffer>,
11435 completion_indices: Vec<usize>,
11436 completions: Arc<RwLock<Box<[Completion]>>>,
11437 cx: &mut ViewContext<Editor>,
11438 ) -> Task<Result<bool>> {
11439 self.update(cx, |project, cx| {
11440 project.resolve_completions(buffer, completion_indices, completions, cx)
11441 })
11442 }
11443
11444 fn apply_additional_edits_for_completion(
11445 &self,
11446 buffer: Model<Buffer>,
11447 completion: Completion,
11448 push_to_history: bool,
11449 cx: &mut ViewContext<Editor>,
11450 ) -> Task<Result<Option<language::Transaction>>> {
11451 self.update(cx, |project, cx| {
11452 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
11453 })
11454 }
11455
11456 fn is_completion_trigger(
11457 &self,
11458 buffer: &Model<Buffer>,
11459 position: language::Anchor,
11460 text: &str,
11461 trigger_in_words: bool,
11462 cx: &mut ViewContext<Editor>,
11463 ) -> bool {
11464 if !EditorSettings::get_global(cx).show_completions_on_input {
11465 return false;
11466 }
11467
11468 let mut chars = text.chars();
11469 let char = if let Some(char) = chars.next() {
11470 char
11471 } else {
11472 return false;
11473 };
11474 if chars.next().is_some() {
11475 return false;
11476 }
11477
11478 let buffer = buffer.read(cx);
11479 let scope = buffer.snapshot().language_scope_at(position);
11480 if trigger_in_words && char_kind(&scope, char) == CharKind::Word {
11481 return true;
11482 }
11483
11484 buffer
11485 .completion_triggers()
11486 .iter()
11487 .any(|string| string == text)
11488 }
11489}
11490
11491fn inlay_hint_settings(
11492 location: Anchor,
11493 snapshot: &MultiBufferSnapshot,
11494 cx: &mut ViewContext<'_, Editor>,
11495) -> InlayHintSettings {
11496 let file = snapshot.file_at(location);
11497 let language = snapshot.language_at(location);
11498 let settings = all_language_settings(file, cx);
11499 settings
11500 .language(language.map(|l| l.name()).as_deref())
11501 .inlay_hints
11502}
11503
11504fn consume_contiguous_rows(
11505 contiguous_row_selections: &mut Vec<Selection<Point>>,
11506 selection: &Selection<Point>,
11507 display_map: &DisplaySnapshot,
11508 selections: &mut std::iter::Peekable<std::slice::Iter<Selection<Point>>>,
11509) -> (MultiBufferRow, MultiBufferRow) {
11510 contiguous_row_selections.push(selection.clone());
11511 let start_row = MultiBufferRow(selection.start.row);
11512 let mut end_row = ending_row(selection, display_map);
11513
11514 while let Some(next_selection) = selections.peek() {
11515 if next_selection.start.row <= end_row.0 {
11516 end_row = ending_row(next_selection, display_map);
11517 contiguous_row_selections.push(selections.next().unwrap().clone());
11518 } else {
11519 break;
11520 }
11521 }
11522 (start_row, end_row)
11523}
11524
11525fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
11526 if next_selection.end.column > 0 || next_selection.is_empty() {
11527 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
11528 } else {
11529 MultiBufferRow(next_selection.end.row)
11530 }
11531}
11532
11533impl EditorSnapshot {
11534 pub fn remote_selections_in_range<'a>(
11535 &'a self,
11536 range: &'a Range<Anchor>,
11537 collaboration_hub: &dyn CollaborationHub,
11538 cx: &'a AppContext,
11539 ) -> impl 'a + Iterator<Item = RemoteSelection> {
11540 let participant_names = collaboration_hub.user_names(cx);
11541 let participant_indices = collaboration_hub.user_participant_indices(cx);
11542 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
11543 let collaborators_by_replica_id = collaborators_by_peer_id
11544 .iter()
11545 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
11546 .collect::<HashMap<_, _>>();
11547 self.buffer_snapshot
11548 .remote_selections_in_range(range)
11549 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
11550 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
11551 let participant_index = participant_indices.get(&collaborator.user_id).copied();
11552 let user_name = participant_names.get(&collaborator.user_id).cloned();
11553 Some(RemoteSelection {
11554 replica_id,
11555 selection,
11556 cursor_shape,
11557 line_mode,
11558 participant_index,
11559 peer_id: collaborator.peer_id,
11560 user_name,
11561 })
11562 })
11563 }
11564
11565 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
11566 self.display_snapshot.buffer_snapshot.language_at(position)
11567 }
11568
11569 pub fn is_focused(&self) -> bool {
11570 self.is_focused
11571 }
11572
11573 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
11574 self.placeholder_text.as_ref()
11575 }
11576
11577 pub fn scroll_position(&self) -> gpui::Point<f32> {
11578 self.scroll_anchor.scroll_position(&self.display_snapshot)
11579 }
11580
11581 pub fn gutter_dimensions(
11582 &self,
11583 font_id: FontId,
11584 font_size: Pixels,
11585 em_width: Pixels,
11586 max_line_number_width: Pixels,
11587 cx: &AppContext,
11588 ) -> GutterDimensions {
11589 if !self.show_gutter {
11590 return GutterDimensions::default();
11591 }
11592 let descent = cx.text_system().descent(font_id, font_size);
11593
11594 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
11595 matches!(
11596 ProjectSettings::get_global(cx).git.git_gutter,
11597 Some(GitGutterSetting::TrackedFiles)
11598 )
11599 });
11600 let gutter_settings = EditorSettings::get_global(cx).gutter;
11601 let show_line_numbers = self
11602 .show_line_numbers
11603 .unwrap_or_else(|| gutter_settings.line_numbers);
11604 let line_gutter_width = if show_line_numbers {
11605 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
11606 let min_width_for_number_on_gutter = em_width * 4.0;
11607 max_line_number_width.max(min_width_for_number_on_gutter)
11608 } else {
11609 0.0.into()
11610 };
11611
11612 let show_code_actions = self
11613 .show_code_actions
11614 .unwrap_or_else(|| gutter_settings.code_actions);
11615
11616 let git_blame_entries_width = self
11617 .render_git_blame_gutter
11618 .then_some(em_width * GIT_BLAME_GUTTER_WIDTH_CHARS);
11619
11620 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
11621 left_padding += if show_code_actions {
11622 em_width * 3.0
11623 } else if show_git_gutter && show_line_numbers {
11624 em_width * 2.0
11625 } else if show_git_gutter || show_line_numbers {
11626 em_width
11627 } else {
11628 px(0.)
11629 };
11630
11631 let right_padding = if gutter_settings.folds && show_line_numbers {
11632 em_width * 4.0
11633 } else if gutter_settings.folds {
11634 em_width * 3.0
11635 } else if show_line_numbers {
11636 em_width
11637 } else {
11638 px(0.)
11639 };
11640
11641 GutterDimensions {
11642 left_padding,
11643 right_padding,
11644 width: line_gutter_width + left_padding + right_padding,
11645 margin: -descent,
11646 git_blame_entries_width,
11647 }
11648 }
11649
11650 pub fn render_fold_toggle(
11651 &self,
11652 buffer_row: MultiBufferRow,
11653 row_contains_cursor: bool,
11654 editor: View<Editor>,
11655 cx: &mut WindowContext,
11656 ) -> Option<AnyElement> {
11657 let folded = self.is_line_folded(buffer_row);
11658
11659 if let Some(flap) = self
11660 .flap_snapshot
11661 .query_row(buffer_row, &self.buffer_snapshot)
11662 {
11663 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
11664 if folded {
11665 editor.update(cx, |editor, cx| {
11666 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
11667 });
11668 } else {
11669 editor.update(cx, |editor, cx| {
11670 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
11671 });
11672 }
11673 });
11674
11675 Some((flap.render_toggle)(
11676 buffer_row,
11677 folded,
11678 toggle_callback,
11679 cx,
11680 ))
11681 } else if folded
11682 || (self.starts_indent(buffer_row) && (row_contains_cursor || self.gutter_hovered))
11683 {
11684 Some(
11685 IconButton::new(
11686 ("indent-fold-indicator", buffer_row.0),
11687 ui::IconName::ChevronDown,
11688 )
11689 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
11690 if folded {
11691 this.unfold_at(&UnfoldAt { buffer_row }, cx);
11692 } else {
11693 this.fold_at(&FoldAt { buffer_row }, cx);
11694 }
11695 }))
11696 .icon_color(ui::Color::Muted)
11697 .icon_size(ui::IconSize::Small)
11698 .selected(folded)
11699 .selected_icon(ui::IconName::ChevronRight)
11700 .size(ui::ButtonSize::None)
11701 .into_any_element(),
11702 )
11703 } else {
11704 None
11705 }
11706 }
11707
11708 pub fn render_flap_trailer(
11709 &self,
11710 buffer_row: MultiBufferRow,
11711 cx: &mut WindowContext,
11712 ) -> Option<AnyElement> {
11713 let folded = self.is_line_folded(buffer_row);
11714 let flap = self
11715 .flap_snapshot
11716 .query_row(buffer_row, &self.buffer_snapshot)?;
11717 Some((flap.render_trailer)(buffer_row, folded, cx))
11718 }
11719}
11720
11721impl Deref for EditorSnapshot {
11722 type Target = DisplaySnapshot;
11723
11724 fn deref(&self) -> &Self::Target {
11725 &self.display_snapshot
11726 }
11727}
11728
11729#[derive(Clone, Debug, PartialEq, Eq)]
11730pub enum EditorEvent {
11731 InputIgnored {
11732 text: Arc<str>,
11733 },
11734 InputHandled {
11735 utf16_range_to_replace: Option<Range<isize>>,
11736 text: Arc<str>,
11737 },
11738 ExcerptsAdded {
11739 buffer: Model<Buffer>,
11740 predecessor: ExcerptId,
11741 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
11742 },
11743 ExcerptsRemoved {
11744 ids: Vec<ExcerptId>,
11745 },
11746 BufferEdited,
11747 Edited,
11748 Reparsed,
11749 Focused,
11750 Blurred,
11751 DirtyChanged,
11752 Saved,
11753 TitleChanged,
11754 DiffBaseChanged,
11755 SelectionsChanged {
11756 local: bool,
11757 },
11758 ScrollPositionChanged {
11759 local: bool,
11760 autoscroll: bool,
11761 },
11762 Closed,
11763 TransactionUndone {
11764 transaction_id: clock::Lamport,
11765 },
11766 TransactionBegun {
11767 transaction_id: clock::Lamport,
11768 },
11769}
11770
11771impl EventEmitter<EditorEvent> for Editor {}
11772
11773impl FocusableView for Editor {
11774 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
11775 self.focus_handle.clone()
11776 }
11777}
11778
11779impl Render for Editor {
11780 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
11781 let settings = ThemeSettings::get_global(cx);
11782
11783 let text_style = match self.mode {
11784 EditorMode::SingleLine | EditorMode::AutoHeight { .. } => TextStyle {
11785 color: cx.theme().colors().editor_foreground,
11786 font_family: settings.ui_font.family.clone(),
11787 font_features: settings.ui_font.features.clone(),
11788 font_size: rems(0.875).into(),
11789 font_weight: settings.ui_font.weight,
11790 font_style: FontStyle::Normal,
11791 line_height: relative(settings.buffer_line_height.value()),
11792 background_color: None,
11793 underline: None,
11794 strikethrough: None,
11795 white_space: WhiteSpace::Normal,
11796 },
11797 EditorMode::Full => TextStyle {
11798 color: cx.theme().colors().editor_foreground,
11799 font_family: settings.buffer_font.family.clone(),
11800 font_features: settings.buffer_font.features.clone(),
11801 font_size: settings.buffer_font_size(cx).into(),
11802 font_weight: settings.buffer_font.weight,
11803 font_style: FontStyle::Normal,
11804 line_height: relative(settings.buffer_line_height.value()),
11805 background_color: None,
11806 underline: None,
11807 strikethrough: None,
11808 white_space: WhiteSpace::Normal,
11809 },
11810 };
11811
11812 let background = match self.mode {
11813 EditorMode::SingleLine => cx.theme().system().transparent,
11814 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
11815 EditorMode::Full => cx.theme().colors().editor_background,
11816 };
11817
11818 EditorElement::new(
11819 cx.view(),
11820 EditorStyle {
11821 background,
11822 local_player: cx.theme().players().local(),
11823 text: text_style,
11824 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
11825 syntax: cx.theme().syntax().clone(),
11826 status: cx.theme().status().clone(),
11827 inlay_hints_style: HighlightStyle {
11828 color: Some(cx.theme().status().hint),
11829 ..HighlightStyle::default()
11830 },
11831 suggestions_style: HighlightStyle {
11832 color: Some(cx.theme().status().predictive),
11833 ..HighlightStyle::default()
11834 },
11835 },
11836 )
11837 }
11838}
11839
11840impl ViewInputHandler for Editor {
11841 fn text_for_range(
11842 &mut self,
11843 range_utf16: Range<usize>,
11844 cx: &mut ViewContext<Self>,
11845 ) -> Option<String> {
11846 Some(
11847 self.buffer
11848 .read(cx)
11849 .read(cx)
11850 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
11851 .collect(),
11852 )
11853 }
11854
11855 fn selected_text_range(&mut self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11856 // Prevent the IME menu from appearing when holding down an alphabetic key
11857 // while input is disabled.
11858 if !self.input_enabled {
11859 return None;
11860 }
11861
11862 let range = self.selections.newest::<OffsetUtf16>(cx).range();
11863 Some(range.start.0..range.end.0)
11864 }
11865
11866 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
11867 let snapshot = self.buffer.read(cx).read(cx);
11868 let range = self.text_highlights::<InputComposition>(cx)?.1.get(0)?;
11869 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
11870 }
11871
11872 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
11873 self.clear_highlights::<InputComposition>(cx);
11874 self.ime_transaction.take();
11875 }
11876
11877 fn replace_text_in_range(
11878 &mut self,
11879 range_utf16: Option<Range<usize>>,
11880 text: &str,
11881 cx: &mut ViewContext<Self>,
11882 ) {
11883 if !self.input_enabled {
11884 cx.emit(EditorEvent::InputIgnored { text: text.into() });
11885 return;
11886 }
11887
11888 self.transact(cx, |this, cx| {
11889 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
11890 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11891 Some(this.selection_replacement_ranges(range_utf16, cx))
11892 } else {
11893 this.marked_text_ranges(cx)
11894 };
11895
11896 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
11897 let newest_selection_id = this.selections.newest_anchor().id;
11898 this.selections
11899 .all::<OffsetUtf16>(cx)
11900 .iter()
11901 .zip(ranges_to_replace.iter())
11902 .find_map(|(selection, range)| {
11903 if selection.id == newest_selection_id {
11904 Some(
11905 (range.start.0 as isize - selection.head().0 as isize)
11906 ..(range.end.0 as isize - selection.head().0 as isize),
11907 )
11908 } else {
11909 None
11910 }
11911 })
11912 });
11913
11914 cx.emit(EditorEvent::InputHandled {
11915 utf16_range_to_replace: range_to_replace,
11916 text: text.into(),
11917 });
11918
11919 if let Some(new_selected_ranges) = new_selected_ranges {
11920 this.change_selections(None, cx, |selections| {
11921 selections.select_ranges(new_selected_ranges)
11922 });
11923 this.backspace(&Default::default(), cx);
11924 }
11925
11926 this.handle_input(text, cx);
11927 });
11928
11929 if let Some(transaction) = self.ime_transaction {
11930 self.buffer.update(cx, |buffer, cx| {
11931 buffer.group_until_transaction(transaction, cx);
11932 });
11933 }
11934
11935 self.unmark_text(cx);
11936 }
11937
11938 fn replace_and_mark_text_in_range(
11939 &mut self,
11940 range_utf16: Option<Range<usize>>,
11941 text: &str,
11942 new_selected_range_utf16: Option<Range<usize>>,
11943 cx: &mut ViewContext<Self>,
11944 ) {
11945 if !self.input_enabled {
11946 return;
11947 }
11948
11949 let transaction = self.transact(cx, |this, cx| {
11950 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
11951 let snapshot = this.buffer.read(cx).read(cx);
11952 if let Some(relative_range_utf16) = range_utf16.as_ref() {
11953 for marked_range in &mut marked_ranges {
11954 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
11955 marked_range.start.0 += relative_range_utf16.start;
11956 marked_range.start =
11957 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
11958 marked_range.end =
11959 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
11960 }
11961 }
11962 Some(marked_ranges)
11963 } else if let Some(range_utf16) = range_utf16 {
11964 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
11965 Some(this.selection_replacement_ranges(range_utf16, cx))
11966 } else {
11967 None
11968 };
11969
11970 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
11971 let newest_selection_id = this.selections.newest_anchor().id;
11972 this.selections
11973 .all::<OffsetUtf16>(cx)
11974 .iter()
11975 .zip(ranges_to_replace.iter())
11976 .find_map(|(selection, range)| {
11977 if selection.id == newest_selection_id {
11978 Some(
11979 (range.start.0 as isize - selection.head().0 as isize)
11980 ..(range.end.0 as isize - selection.head().0 as isize),
11981 )
11982 } else {
11983 None
11984 }
11985 })
11986 });
11987
11988 cx.emit(EditorEvent::InputHandled {
11989 utf16_range_to_replace: range_to_replace,
11990 text: text.into(),
11991 });
11992
11993 if let Some(ranges) = ranges_to_replace {
11994 this.change_selections(None, cx, |s| s.select_ranges(ranges));
11995 }
11996
11997 let marked_ranges = {
11998 let snapshot = this.buffer.read(cx).read(cx);
11999 this.selections
12000 .disjoint_anchors()
12001 .iter()
12002 .map(|selection| {
12003 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
12004 })
12005 .collect::<Vec<_>>()
12006 };
12007
12008 if text.is_empty() {
12009 this.unmark_text(cx);
12010 } else {
12011 this.highlight_text::<InputComposition>(
12012 marked_ranges.clone(),
12013 HighlightStyle {
12014 underline: Some(UnderlineStyle {
12015 thickness: px(1.),
12016 color: None,
12017 wavy: false,
12018 }),
12019 ..Default::default()
12020 },
12021 cx,
12022 );
12023 }
12024
12025 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
12026 let use_autoclose = this.use_autoclose;
12027 this.set_use_autoclose(false);
12028 this.handle_input(text, cx);
12029 this.set_use_autoclose(use_autoclose);
12030
12031 if let Some(new_selected_range) = new_selected_range_utf16 {
12032 let snapshot = this.buffer.read(cx).read(cx);
12033 let new_selected_ranges = marked_ranges
12034 .into_iter()
12035 .map(|marked_range| {
12036 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
12037 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
12038 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
12039 snapshot.clip_offset_utf16(new_start, Bias::Left)
12040 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
12041 })
12042 .collect::<Vec<_>>();
12043
12044 drop(snapshot);
12045 this.change_selections(None, cx, |selections| {
12046 selections.select_ranges(new_selected_ranges)
12047 });
12048 }
12049 });
12050
12051 self.ime_transaction = self.ime_transaction.or(transaction);
12052 if let Some(transaction) = self.ime_transaction {
12053 self.buffer.update(cx, |buffer, cx| {
12054 buffer.group_until_transaction(transaction, cx);
12055 });
12056 }
12057
12058 if self.text_highlights::<InputComposition>(cx).is_none() {
12059 self.ime_transaction.take();
12060 }
12061 }
12062
12063 fn bounds_for_range(
12064 &mut self,
12065 range_utf16: Range<usize>,
12066 element_bounds: gpui::Bounds<Pixels>,
12067 cx: &mut ViewContext<Self>,
12068 ) -> Option<gpui::Bounds<Pixels>> {
12069 let text_layout_details = self.text_layout_details(cx);
12070 let style = &text_layout_details.editor_style;
12071 let font_id = cx.text_system().resolve_font(&style.text.font());
12072 let font_size = style.text.font_size.to_pixels(cx.rem_size());
12073 let line_height = style.text.line_height_in_pixels(cx.rem_size());
12074 let em_width = cx
12075 .text_system()
12076 .typographic_bounds(font_id, font_size, 'm')
12077 .unwrap()
12078 .size
12079 .width;
12080
12081 let snapshot = self.snapshot(cx);
12082 let scroll_position = snapshot.scroll_position();
12083 let scroll_left = scroll_position.x * em_width;
12084
12085 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
12086 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
12087 + self.gutter_dimensions.width;
12088 let y = line_height * (start.row().as_f32() - scroll_position.y);
12089
12090 Some(Bounds {
12091 origin: element_bounds.origin + point(x, y),
12092 size: size(em_width, line_height),
12093 })
12094 }
12095}
12096
12097trait SelectionExt {
12098 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
12099 fn spanned_rows(
12100 &self,
12101 include_end_if_at_line_start: bool,
12102 map: &DisplaySnapshot,
12103 ) -> Range<MultiBufferRow>;
12104}
12105
12106impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
12107 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
12108 let start = self
12109 .start
12110 .to_point(&map.buffer_snapshot)
12111 .to_display_point(map);
12112 let end = self
12113 .end
12114 .to_point(&map.buffer_snapshot)
12115 .to_display_point(map);
12116 if self.reversed {
12117 end..start
12118 } else {
12119 start..end
12120 }
12121 }
12122
12123 fn spanned_rows(
12124 &self,
12125 include_end_if_at_line_start: bool,
12126 map: &DisplaySnapshot,
12127 ) -> Range<MultiBufferRow> {
12128 let start = self.start.to_point(&map.buffer_snapshot);
12129 let mut end = self.end.to_point(&map.buffer_snapshot);
12130 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
12131 end.row -= 1;
12132 }
12133
12134 let buffer_start = map.prev_line_boundary(start).0;
12135 let buffer_end = map.next_line_boundary(end).0;
12136 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
12137 }
12138}
12139
12140impl<T: InvalidationRegion> InvalidationStack<T> {
12141 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
12142 where
12143 S: Clone + ToOffset,
12144 {
12145 while let Some(region) = self.last() {
12146 let all_selections_inside_invalidation_ranges =
12147 if selections.len() == region.ranges().len() {
12148 selections
12149 .iter()
12150 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
12151 .all(|(selection, invalidation_range)| {
12152 let head = selection.head().to_offset(buffer);
12153 invalidation_range.start <= head && invalidation_range.end >= head
12154 })
12155 } else {
12156 false
12157 };
12158
12159 if all_selections_inside_invalidation_ranges {
12160 break;
12161 } else {
12162 self.pop();
12163 }
12164 }
12165 }
12166}
12167
12168impl<T> Default for InvalidationStack<T> {
12169 fn default() -> Self {
12170 Self(Default::default())
12171 }
12172}
12173
12174impl<T> Deref for InvalidationStack<T> {
12175 type Target = Vec<T>;
12176
12177 fn deref(&self) -> &Self::Target {
12178 &self.0
12179 }
12180}
12181
12182impl<T> DerefMut for InvalidationStack<T> {
12183 fn deref_mut(&mut self) -> &mut Self::Target {
12184 &mut self.0
12185 }
12186}
12187
12188impl InvalidationRegion for SnippetState {
12189 fn ranges(&self) -> &[Range<Anchor>] {
12190 &self.ranges[self.active_index]
12191 }
12192}
12193
12194pub fn diagnostic_block_renderer(diagnostic: Diagnostic, _is_valid: bool) -> RenderBlock {
12195 let (text_without_backticks, code_ranges) = highlight_diagnostic_message(&diagnostic);
12196
12197 Box::new(move |cx: &mut BlockContext| {
12198 let group_id: SharedString = cx.block_id.to_string().into();
12199
12200 let mut text_style = cx.text_style().clone();
12201 text_style.color = diagnostic_style(diagnostic.severity, true, cx.theme().status());
12202 let theme_settings = ThemeSettings::get_global(cx);
12203 text_style.font_family = theme_settings.buffer_font.family.clone();
12204 text_style.font_style = theme_settings.buffer_font.style;
12205 text_style.font_features = theme_settings.buffer_font.features.clone();
12206 text_style.font_weight = theme_settings.buffer_font.weight;
12207
12208 let multi_line_diagnostic = diagnostic.message.contains('\n');
12209
12210 let buttons = |diagnostic: &Diagnostic, block_id: usize| {
12211 if multi_line_diagnostic {
12212 v_flex()
12213 } else {
12214 h_flex()
12215 }
12216 .children(diagnostic.is_primary.then(|| {
12217 IconButton::new(("close-block", block_id), IconName::XCircle)
12218 .icon_color(Color::Muted)
12219 .size(ButtonSize::Compact)
12220 .style(ButtonStyle::Transparent)
12221 .visible_on_hover(group_id.clone())
12222 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
12223 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
12224 }))
12225 .child(
12226 IconButton::new(("copy-block", block_id), IconName::Copy)
12227 .icon_color(Color::Muted)
12228 .size(ButtonSize::Compact)
12229 .style(ButtonStyle::Transparent)
12230 .visible_on_hover(group_id.clone())
12231 .on_click({
12232 let message = diagnostic.message.clone();
12233 move |_click, cx| cx.write_to_clipboard(ClipboardItem::new(message.clone()))
12234 })
12235 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
12236 )
12237 };
12238
12239 let icon_size = buttons(&diagnostic, cx.block_id)
12240 .into_any_element()
12241 .layout_as_root(AvailableSpace::min_size(), cx);
12242
12243 h_flex()
12244 .id(cx.block_id)
12245 .group(group_id.clone())
12246 .relative()
12247 .size_full()
12248 .pl(cx.gutter_dimensions.width)
12249 .w(cx.max_width + cx.gutter_dimensions.width)
12250 .child(
12251 div()
12252 .flex()
12253 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
12254 .flex_shrink(),
12255 )
12256 .child(buttons(&diagnostic, cx.block_id))
12257 .child(div().flex().flex_shrink_0().child(
12258 StyledText::new(text_without_backticks.clone()).with_highlights(
12259 &text_style,
12260 code_ranges.iter().map(|range| {
12261 (
12262 range.clone(),
12263 HighlightStyle {
12264 font_weight: Some(FontWeight::BOLD),
12265 ..Default::default()
12266 },
12267 )
12268 }),
12269 ),
12270 ))
12271 .into_any_element()
12272 })
12273}
12274
12275pub fn highlight_diagnostic_message(diagnostic: &Diagnostic) -> (SharedString, Vec<Range<usize>>) {
12276 let mut text_without_backticks = String::new();
12277 let mut code_ranges = Vec::new();
12278
12279 if let Some(source) = &diagnostic.source {
12280 text_without_backticks.push_str(&source);
12281 code_ranges.push(0..source.len());
12282 text_without_backticks.push_str(": ");
12283 }
12284
12285 let mut prev_offset = 0;
12286 let mut in_code_block = false;
12287 for (ix, _) in diagnostic
12288 .message
12289 .match_indices('`')
12290 .chain([(diagnostic.message.len(), "")])
12291 {
12292 let prev_len = text_without_backticks.len();
12293 text_without_backticks.push_str(&diagnostic.message[prev_offset..ix]);
12294 prev_offset = ix + 1;
12295 if in_code_block {
12296 code_ranges.push(prev_len..text_without_backticks.len());
12297 in_code_block = false;
12298 } else {
12299 in_code_block = true;
12300 }
12301 }
12302
12303 (text_without_backticks.into(), code_ranges)
12304}
12305
12306fn diagnostic_style(severity: DiagnosticSeverity, valid: bool, colors: &StatusColors) -> Hsla {
12307 match (severity, valid) {
12308 (DiagnosticSeverity::ERROR, true) => colors.error,
12309 (DiagnosticSeverity::ERROR, false) => colors.error,
12310 (DiagnosticSeverity::WARNING, true) => colors.warning,
12311 (DiagnosticSeverity::WARNING, false) => colors.warning,
12312 (DiagnosticSeverity::INFORMATION, true) => colors.info,
12313 (DiagnosticSeverity::INFORMATION, false) => colors.info,
12314 (DiagnosticSeverity::HINT, true) => colors.info,
12315 (DiagnosticSeverity::HINT, false) => colors.info,
12316 _ => colors.ignored,
12317 }
12318}
12319
12320pub fn styled_runs_for_code_label<'a>(
12321 label: &'a CodeLabel,
12322 syntax_theme: &'a theme::SyntaxTheme,
12323) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
12324 let fade_out = HighlightStyle {
12325 fade_out: Some(0.35),
12326 ..Default::default()
12327 };
12328
12329 let mut prev_end = label.filter_range.end;
12330 label
12331 .runs
12332 .iter()
12333 .enumerate()
12334 .flat_map(move |(ix, (range, highlight_id))| {
12335 let style = if let Some(style) = highlight_id.style(syntax_theme) {
12336 style
12337 } else {
12338 return Default::default();
12339 };
12340 let mut muted_style = style;
12341 muted_style.highlight(fade_out);
12342
12343 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
12344 if range.start >= label.filter_range.end {
12345 if range.start > prev_end {
12346 runs.push((prev_end..range.start, fade_out));
12347 }
12348 runs.push((range.clone(), muted_style));
12349 } else if range.end <= label.filter_range.end {
12350 runs.push((range.clone(), style));
12351 } else {
12352 runs.push((range.start..label.filter_range.end, style));
12353 runs.push((label.filter_range.end..range.end, muted_style));
12354 }
12355 prev_end = cmp::max(prev_end, range.end);
12356
12357 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
12358 runs.push((prev_end..label.text.len(), fade_out));
12359 }
12360
12361 runs
12362 })
12363}
12364
12365pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
12366 let mut prev_index = 0;
12367 let mut prev_codepoint: Option<char> = None;
12368 text.char_indices()
12369 .chain([(text.len(), '\0')])
12370 .filter_map(move |(index, codepoint)| {
12371 let prev_codepoint = prev_codepoint.replace(codepoint)?;
12372 let is_boundary = index == text.len()
12373 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
12374 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
12375 if is_boundary {
12376 let chunk = &text[prev_index..index];
12377 prev_index = index;
12378 Some(chunk)
12379 } else {
12380 None
12381 }
12382 })
12383}
12384
12385trait RangeToAnchorExt {
12386 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
12387}
12388
12389impl<T: ToOffset> RangeToAnchorExt for Range<T> {
12390 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
12391 let start_offset = self.start.to_offset(snapshot);
12392 let end_offset = self.end.to_offset(snapshot);
12393 if start_offset == end_offset {
12394 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
12395 } else {
12396 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
12397 }
12398 }
12399}
12400
12401pub trait RowExt {
12402 fn as_f32(&self) -> f32;
12403
12404 fn next_row(&self) -> Self;
12405
12406 fn previous_row(&self) -> Self;
12407
12408 fn minus(&self, other: Self) -> u32;
12409}
12410
12411impl RowExt for DisplayRow {
12412 fn as_f32(&self) -> f32 {
12413 self.0 as f32
12414 }
12415
12416 fn next_row(&self) -> Self {
12417 Self(self.0 + 1)
12418 }
12419
12420 fn previous_row(&self) -> Self {
12421 Self(self.0.saturating_sub(1))
12422 }
12423
12424 fn minus(&self, other: Self) -> u32 {
12425 self.0 - other.0
12426 }
12427}
12428
12429impl RowExt for MultiBufferRow {
12430 fn as_f32(&self) -> f32 {
12431 self.0 as f32
12432 }
12433
12434 fn next_row(&self) -> Self {
12435 Self(self.0 + 1)
12436 }
12437
12438 fn previous_row(&self) -> Self {
12439 Self(self.0.saturating_sub(1))
12440 }
12441
12442 fn minus(&self, other: Self) -> u32 {
12443 self.0 - other.0
12444 }
12445}
12446
12447trait RowRangeExt {
12448 type Row;
12449
12450 fn len(&self) -> usize;
12451
12452 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
12453}
12454
12455impl RowRangeExt for Range<MultiBufferRow> {
12456 type Row = MultiBufferRow;
12457
12458 fn len(&self) -> usize {
12459 (self.end.0 - self.start.0) as usize
12460 }
12461
12462 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
12463 (self.start.0..self.end.0).map(MultiBufferRow)
12464 }
12465}
12466
12467impl RowRangeExt for Range<DisplayRow> {
12468 type Row = DisplayRow;
12469
12470 fn len(&self) -> usize {
12471 (self.end.0 - self.start.0) as usize
12472 }
12473
12474 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
12475 (self.start.0..self.end.0).map(DisplayRow)
12476 }
12477}
12478
12479fn hunk_status(hunk: &DiffHunk<MultiBufferRow>) -> DiffHunkStatus {
12480 if hunk.diff_base_byte_range.is_empty() {
12481 DiffHunkStatus::Added
12482 } else if hunk.associated_range.is_empty() {
12483 DiffHunkStatus::Removed
12484 } else {
12485 DiffHunkStatus::Modified
12486 }
12487}