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 behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod debounced_delay;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31pub mod items;
32mod linked_editing_ranges;
33mod lsp_ext;
34mod mouse_context_menu;
35pub mod movement;
36mod persistence;
37mod proposed_changes_editor;
38mod rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45mod signature_help;
46#[cfg(any(test, feature = "test-support"))]
47pub mod test;
48
49use ::git::diff::DiffHunkStatus;
50pub(crate) use actions::*;
51pub use actions::{OpenExcerpts, OpenExcerptsSplit};
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use client::{Collaborator, ParticipantIndex};
56use clock::ReplicaId;
57use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
58use convert_case::{Case, Casing};
59use debounced_delay::DebouncedDelay;
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use gpui::{
74 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
75 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
76 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
77 FocusableView, FontId, FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext,
78 ListSizingBehavior, Model, ModelContext, MouseButton, PaintQuad, ParentElement, Pixels, Render,
79 ScrollStrategy, SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task,
80 TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle, View,
81 ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle, WeakView, WindowContext,
82};
83use highlight_matching_bracket::refresh_matching_bracket_highlights;
84use hover_popover::{hide_hover, HoverState};
85pub(crate) use hunk_diff::HoveredHunk;
86use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
87use indent_guides::ActiveIndentGuidesState;
88use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
89pub use inline_completion::Direction;
90use inline_completion::{InlayProposal, InlineCompletionProvider, InlineCompletionProviderHandle};
91pub use items::MAX_TAB_TITLE_LEN;
92use itertools::Itertools;
93use language::{
94 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
95 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
96 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
97 Point, Selection, SelectionGoal, TransactionId,
98};
99use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
100use linked_editing_ranges::refresh_linked_ranges;
101pub use proposed_changes_editor::{
102 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesToolbar,
103 ProposedChangesToolbarControls,
104};
105use similar::{ChangeTag, TextDiff};
106use std::iter::Peekable;
107use task::{ResolvedTask, TaskTemplate, TaskVariables};
108
109use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
110pub use lsp::CompletionContext;
111use lsp::{
112 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
113 LanguageServerId, LanguageServerName,
114};
115use mouse_context_menu::MouseContextMenu;
116use movement::TextLayoutDetails;
117pub use multi_buffer::{
118 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
119 ToPoint,
120};
121use multi_buffer::{
122 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
123};
124use ordered_float::OrderedFloat;
125use parking_lot::{Mutex, RwLock};
126use project::{
127 lsp_store::{FormatTarget, FormatTrigger},
128 project_settings::{GitGutterSetting, ProjectSettings},
129 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Item, Location,
130 LocationLink, Project, ProjectTransaction, TaskSourceKind,
131};
132use rand::prelude::*;
133use rpc::{proto::*, ErrorExt};
134use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
135use selections_collection::{
136 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
137};
138use serde::{Deserialize, Serialize};
139use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
140use smallvec::SmallVec;
141use snippet::Snippet;
142use std::{
143 any::TypeId,
144 borrow::Cow,
145 cell::RefCell,
146 cmp::{self, Ordering, Reverse},
147 mem,
148 num::NonZeroU32,
149 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
150 path::{Path, PathBuf},
151 rc::Rc,
152 sync::Arc,
153 time::{Duration, Instant},
154};
155pub use sum_tree::Bias;
156use sum_tree::TreeMap;
157use text::{BufferId, OffsetUtf16, Rope};
158use theme::{
159 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
160 ThemeColors, ThemeSettings,
161};
162use ui::{
163 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
164 ListItem, Popover, Tooltip,
165};
166use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
167use workspace::item::{ItemHandle, PreviewTabsSettings};
168use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
169use workspace::{
170 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
171};
172use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
173
174use crate::hover_links::find_url;
175use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
176
177pub const FILE_HEADER_HEIGHT: u32 = 2;
178pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
179pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
180pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
181const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
182const MAX_LINE_LEN: usize = 1024;
183const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
184const MAX_SELECTION_HISTORY_LEN: usize = 1024;
185pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
186#[doc(hidden)]
187pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
188#[doc(hidden)]
189pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
190
191pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
192pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
193
194pub fn render_parsed_markdown(
195 element_id: impl Into<ElementId>,
196 parsed: &language::ParsedMarkdown,
197 editor_style: &EditorStyle,
198 workspace: Option<WeakView<Workspace>>,
199 cx: &mut WindowContext,
200) -> InteractiveText {
201 let code_span_background_color = cx
202 .theme()
203 .colors()
204 .editor_document_highlight_read_background;
205
206 let highlights = gpui::combine_highlights(
207 parsed.highlights.iter().filter_map(|(range, highlight)| {
208 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
209 Some((range.clone(), highlight))
210 }),
211 parsed
212 .regions
213 .iter()
214 .zip(&parsed.region_ranges)
215 .filter_map(|(region, range)| {
216 if region.code {
217 Some((
218 range.clone(),
219 HighlightStyle {
220 background_color: Some(code_span_background_color),
221 ..Default::default()
222 },
223 ))
224 } else {
225 None
226 }
227 }),
228 );
229
230 let mut links = Vec::new();
231 let mut link_ranges = Vec::new();
232 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
233 if let Some(link) = region.link.clone() {
234 links.push(link);
235 link_ranges.push(range.clone());
236 }
237 }
238
239 InteractiveText::new(
240 element_id,
241 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
242 )
243 .on_click(link_ranges, move |clicked_range_ix, cx| {
244 match &links[clicked_range_ix] {
245 markdown::Link::Web { url } => cx.open_url(url),
246 markdown::Link::Path { path } => {
247 if let Some(workspace) = &workspace {
248 _ = workspace.update(cx, |workspace, cx| {
249 workspace.open_abs_path(path.clone(), false, cx).detach();
250 });
251 }
252 }
253 }
254 })
255}
256
257#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
258pub(crate) enum InlayId {
259 Suggestion(usize),
260 Hint(usize),
261}
262
263impl InlayId {
264 fn id(&self) -> usize {
265 match self {
266 Self::Suggestion(id) => *id,
267 Self::Hint(id) => *id,
268 }
269 }
270}
271
272enum DiffRowHighlight {}
273enum DocumentHighlightRead {}
274enum DocumentHighlightWrite {}
275enum InputComposition {}
276
277#[derive(Debug, Copy, Clone, PartialEq, Eq)]
278pub enum Navigated {
279 Yes,
280 No,
281}
282
283impl Navigated {
284 pub fn from_bool(yes: bool) -> Navigated {
285 if yes {
286 Navigated::Yes
287 } else {
288 Navigated::No
289 }
290 }
291}
292
293pub fn init_settings(cx: &mut AppContext) {
294 EditorSettings::register(cx);
295}
296
297pub fn init(cx: &mut AppContext) {
298 init_settings(cx);
299
300 workspace::register_project_item::<Editor>(cx);
301 workspace::FollowableViewRegistry::register::<Editor>(cx);
302 workspace::register_serializable_item::<Editor>(cx);
303
304 cx.observe_new_views(
305 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
306 workspace.register_action(Editor::new_file);
307 workspace.register_action(Editor::new_file_vertical);
308 workspace.register_action(Editor::new_file_horizontal);
309 },
310 )
311 .detach();
312
313 cx.on_action(move |_: &workspace::NewFile, cx| {
314 let app_state = workspace::AppState::global(cx);
315 if let Some(app_state) = app_state.upgrade() {
316 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
317 Editor::new_file(workspace, &Default::default(), cx)
318 })
319 .detach();
320 }
321 });
322 cx.on_action(move |_: &workspace::NewWindow, cx| {
323 let app_state = workspace::AppState::global(cx);
324 if let Some(app_state) = app_state.upgrade() {
325 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
326 Editor::new_file(workspace, &Default::default(), cx)
327 })
328 .detach();
329 }
330 });
331}
332
333pub struct SearchWithinRange;
334
335trait InvalidationRegion {
336 fn ranges(&self) -> &[Range<Anchor>];
337}
338
339#[derive(Clone, Debug, PartialEq)]
340pub enum SelectPhase {
341 Begin {
342 position: DisplayPoint,
343 add: bool,
344 click_count: usize,
345 },
346 BeginColumnar {
347 position: DisplayPoint,
348 reset: bool,
349 goal_column: u32,
350 },
351 Extend {
352 position: DisplayPoint,
353 click_count: usize,
354 },
355 Update {
356 position: DisplayPoint,
357 goal_column: u32,
358 scroll_delta: gpui::Point<f32>,
359 },
360 End,
361}
362
363#[derive(Clone, Debug)]
364pub enum SelectMode {
365 Character,
366 Word(Range<Anchor>),
367 Line(Range<Anchor>),
368 All,
369}
370
371#[derive(Copy, Clone, PartialEq, Eq, Debug)]
372pub enum EditorMode {
373 SingleLine { auto_width: bool },
374 AutoHeight { max_lines: usize },
375 Full,
376}
377
378#[derive(Copy, Clone, Debug)]
379pub enum SoftWrap {
380 /// Prefer not to wrap at all.
381 ///
382 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
383 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
384 GitDiff,
385 /// Prefer a single line generally, unless an overly long line is encountered.
386 None,
387 /// Soft wrap lines that exceed the editor width.
388 EditorWidth,
389 /// Soft wrap lines at the preferred line length.
390 Column(u32),
391 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
392 Bounded(u32),
393}
394
395#[derive(Clone)]
396pub struct EditorStyle {
397 pub background: Hsla,
398 pub local_player: PlayerColor,
399 pub text: TextStyle,
400 pub scrollbar_width: Pixels,
401 pub syntax: Arc<SyntaxTheme>,
402 pub status: StatusColors,
403 pub inlay_hints_style: HighlightStyle,
404 pub suggestions_style: HighlightStyle,
405 pub unnecessary_code_fade: f32,
406}
407
408impl Default for EditorStyle {
409 fn default() -> Self {
410 Self {
411 background: Hsla::default(),
412 local_player: PlayerColor::default(),
413 text: TextStyle::default(),
414 scrollbar_width: Pixels::default(),
415 syntax: Default::default(),
416 // HACK: Status colors don't have a real default.
417 // We should look into removing the status colors from the editor
418 // style and retrieve them directly from the theme.
419 status: StatusColors::dark(),
420 inlay_hints_style: HighlightStyle::default(),
421 suggestions_style: HighlightStyle::default(),
422 unnecessary_code_fade: Default::default(),
423 }
424 }
425}
426
427pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
428 let show_background = language_settings::language_settings(None, None, cx)
429 .inlay_hints
430 .show_background;
431
432 HighlightStyle {
433 color: Some(cx.theme().status().hint),
434 background_color: show_background.then(|| cx.theme().status().hint_background),
435 ..HighlightStyle::default()
436 }
437}
438
439type CompletionId = usize;
440
441#[derive(Clone, Debug)]
442struct CompletionState {
443 // render_inlay_ids represents the inlay hints that are inserted
444 // for rendering the inline completions. They may be discontinuous
445 // in the event that the completion provider returns some intersection
446 // with the existing content.
447 render_inlay_ids: Vec<InlayId>,
448 // text is the resulting rope that is inserted when the user accepts a completion.
449 text: Rope,
450 // position is the position of the cursor when the completion was triggered.
451 position: multi_buffer::Anchor,
452 // delete_range is the range of text that this completion state covers.
453 // if the completion is accepted, this range should be deleted.
454 delete_range: Option<Range<multi_buffer::Anchor>>,
455}
456
457#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
458struct EditorActionId(usize);
459
460impl EditorActionId {
461 pub fn post_inc(&mut self) -> Self {
462 let answer = self.0;
463
464 *self = Self(answer + 1);
465
466 Self(answer)
467 }
468}
469
470// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
471// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
472
473type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
474type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
475
476#[derive(Default)]
477struct ScrollbarMarkerState {
478 scrollbar_size: Size<Pixels>,
479 dirty: bool,
480 markers: Arc<[PaintQuad]>,
481 pending_refresh: Option<Task<Result<()>>>,
482}
483
484impl ScrollbarMarkerState {
485 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
486 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
487 }
488}
489
490#[derive(Clone, Debug)]
491struct RunnableTasks {
492 templates: Vec<(TaskSourceKind, TaskTemplate)>,
493 offset: MultiBufferOffset,
494 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
495 column: u32,
496 // Values of all named captures, including those starting with '_'
497 extra_variables: HashMap<String, String>,
498 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
499 context_range: Range<BufferOffset>,
500}
501
502impl RunnableTasks {
503 fn resolve<'a>(
504 &'a self,
505 cx: &'a task::TaskContext,
506 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
507 self.templates.iter().filter_map(|(kind, template)| {
508 template
509 .resolve_task(&kind.to_id_base(), cx)
510 .map(|task| (kind.clone(), task))
511 })
512 }
513}
514
515#[derive(Clone)]
516struct ResolvedTasks {
517 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
518 position: Anchor,
519}
520#[derive(Copy, Clone, Debug)]
521struct MultiBufferOffset(usize);
522#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
523struct BufferOffset(usize);
524
525// Addons allow storing per-editor state in other crates (e.g. Vim)
526pub trait Addon: 'static {
527 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
528
529 fn to_any(&self) -> &dyn std::any::Any;
530}
531
532#[derive(Debug, Copy, Clone, PartialEq, Eq)]
533pub enum IsVimMode {
534 Yes,
535 No,
536}
537
538/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
539///
540/// See the [module level documentation](self) for more information.
541pub struct Editor {
542 focus_handle: FocusHandle,
543 last_focused_descendant: Option<WeakFocusHandle>,
544 /// The text buffer being edited
545 buffer: Model<MultiBuffer>,
546 /// Map of how text in the buffer should be displayed.
547 /// Handles soft wraps, folds, fake inlay text insertions, etc.
548 pub display_map: Model<DisplayMap>,
549 pub selections: SelectionsCollection,
550 pub scroll_manager: ScrollManager,
551 /// When inline assist editors are linked, they all render cursors because
552 /// typing enters text into each of them, even the ones that aren't focused.
553 pub(crate) show_cursor_when_unfocused: bool,
554 columnar_selection_tail: Option<Anchor>,
555 add_selections_state: Option<AddSelectionsState>,
556 select_next_state: Option<SelectNextState>,
557 select_prev_state: Option<SelectNextState>,
558 selection_history: SelectionHistory,
559 autoclose_regions: Vec<AutocloseRegion>,
560 snippet_stack: InvalidationStack<SnippetState>,
561 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
562 ime_transaction: Option<TransactionId>,
563 active_diagnostics: Option<ActiveDiagnosticGroup>,
564 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
565
566 project: Option<Model<Project>>,
567 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
568 completion_provider: Option<Box<dyn CompletionProvider>>,
569 collaboration_hub: Option<Box<dyn CollaborationHub>>,
570 blink_manager: Model<BlinkManager>,
571 show_cursor_names: bool,
572 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
573 pub show_local_selections: bool,
574 mode: EditorMode,
575 show_breadcrumbs: bool,
576 show_gutter: bool,
577 show_line_numbers: Option<bool>,
578 use_relative_line_numbers: Option<bool>,
579 show_git_diff_gutter: Option<bool>,
580 show_code_actions: Option<bool>,
581 show_runnables: Option<bool>,
582 show_wrap_guides: Option<bool>,
583 show_indent_guides: Option<bool>,
584 placeholder_text: Option<Arc<str>>,
585 highlight_order: usize,
586 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
587 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
588 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
589 scrollbar_marker_state: ScrollbarMarkerState,
590 active_indent_guides_state: ActiveIndentGuidesState,
591 nav_history: Option<ItemNavHistory>,
592 context_menu: RwLock<Option<ContextMenu>>,
593 mouse_context_menu: Option<MouseContextMenu>,
594 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
595 signature_help_state: SignatureHelpState,
596 auto_signature_help: Option<bool>,
597 find_all_references_task_sources: Vec<Anchor>,
598 next_completion_id: CompletionId,
599 completion_documentation_pre_resolve_debounce: DebouncedDelay,
600 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
601 code_actions_task: Option<Task<Result<()>>>,
602 document_highlights_task: Option<Task<()>>,
603 linked_editing_range_task: Option<Task<Option<()>>>,
604 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
605 pending_rename: Option<RenameState>,
606 searchable: bool,
607 cursor_shape: CursorShape,
608 current_line_highlight: Option<CurrentLineHighlight>,
609 collapse_matches: bool,
610 autoindent_mode: Option<AutoindentMode>,
611 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
612 input_enabled: bool,
613 use_modal_editing: bool,
614 read_only: bool,
615 leader_peer_id: Option<PeerId>,
616 remote_id: Option<ViewId>,
617 hover_state: HoverState,
618 gutter_hovered: bool,
619 hovered_link_state: Option<HoveredLinkState>,
620 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
621 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
622 active_inline_completion: Option<CompletionState>,
623 // enable_inline_completions is a switch that Vim can use to disable
624 // inline completions based on its mode.
625 enable_inline_completions: bool,
626 show_inline_completions_override: Option<bool>,
627 inlay_hint_cache: InlayHintCache,
628 expanded_hunks: ExpandedHunks,
629 next_inlay_id: usize,
630 _subscriptions: Vec<Subscription>,
631 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
632 gutter_dimensions: GutterDimensions,
633 style: Option<EditorStyle>,
634 text_style_refinement: Option<TextStyleRefinement>,
635 next_editor_action_id: EditorActionId,
636 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
637 use_autoclose: bool,
638 use_auto_surround: bool,
639 auto_replace_emoji_shortcode: bool,
640 show_git_blame_gutter: bool,
641 show_git_blame_inline: bool,
642 show_git_blame_inline_delay_task: Option<Task<()>>,
643 git_blame_inline_enabled: bool,
644 serialize_dirty_buffers: bool,
645 show_selection_menu: Option<bool>,
646 blame: Option<Model<GitBlame>>,
647 blame_subscription: Option<Subscription>,
648 custom_context_menu: Option<
649 Box<
650 dyn 'static
651 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
652 >,
653 >,
654 last_bounds: Option<Bounds<Pixels>>,
655 expect_bounds_change: Option<Bounds<Pixels>>,
656 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
657 tasks_update_task: Option<Task<()>>,
658 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
659 breadcrumb_header: Option<String>,
660 focused_block: Option<FocusedBlock>,
661 next_scroll_position: NextScrollCursorCenterTopBottom,
662 addons: HashMap<TypeId, Box<dyn Addon>>,
663 _scroll_cursor_center_top_bottom_task: Task<()>,
664}
665
666#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
667enum NextScrollCursorCenterTopBottom {
668 #[default]
669 Center,
670 Top,
671 Bottom,
672}
673
674impl NextScrollCursorCenterTopBottom {
675 fn next(&self) -> Self {
676 match self {
677 Self::Center => Self::Top,
678 Self::Top => Self::Bottom,
679 Self::Bottom => Self::Center,
680 }
681 }
682}
683
684#[derive(Clone)]
685pub struct EditorSnapshot {
686 pub mode: EditorMode,
687 show_gutter: bool,
688 show_line_numbers: Option<bool>,
689 show_git_diff_gutter: Option<bool>,
690 show_code_actions: Option<bool>,
691 show_runnables: Option<bool>,
692 git_blame_gutter_max_author_length: Option<usize>,
693 pub display_snapshot: DisplaySnapshot,
694 pub placeholder_text: Option<Arc<str>>,
695 is_focused: bool,
696 scroll_anchor: ScrollAnchor,
697 ongoing_scroll: OngoingScroll,
698 current_line_highlight: CurrentLineHighlight,
699 gutter_hovered: bool,
700}
701
702const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
703
704#[derive(Default, Debug, Clone, Copy)]
705pub struct GutterDimensions {
706 pub left_padding: Pixels,
707 pub right_padding: Pixels,
708 pub width: Pixels,
709 pub margin: Pixels,
710 pub git_blame_entries_width: Option<Pixels>,
711}
712
713impl GutterDimensions {
714 /// The full width of the space taken up by the gutter.
715 pub fn full_width(&self) -> Pixels {
716 self.margin + self.width
717 }
718
719 /// The width of the space reserved for the fold indicators,
720 /// use alongside 'justify_end' and `gutter_width` to
721 /// right align content with the line numbers
722 pub fn fold_area_width(&self) -> Pixels {
723 self.margin + self.right_padding
724 }
725}
726
727#[derive(Debug)]
728pub struct RemoteSelection {
729 pub replica_id: ReplicaId,
730 pub selection: Selection<Anchor>,
731 pub cursor_shape: CursorShape,
732 pub peer_id: PeerId,
733 pub line_mode: bool,
734 pub participant_index: Option<ParticipantIndex>,
735 pub user_name: Option<SharedString>,
736}
737
738#[derive(Clone, Debug)]
739struct SelectionHistoryEntry {
740 selections: Arc<[Selection<Anchor>]>,
741 select_next_state: Option<SelectNextState>,
742 select_prev_state: Option<SelectNextState>,
743 add_selections_state: Option<AddSelectionsState>,
744}
745
746enum SelectionHistoryMode {
747 Normal,
748 Undoing,
749 Redoing,
750}
751
752#[derive(Clone, PartialEq, Eq, Hash)]
753struct HoveredCursor {
754 replica_id: u16,
755 selection_id: usize,
756}
757
758impl Default for SelectionHistoryMode {
759 fn default() -> Self {
760 Self::Normal
761 }
762}
763
764#[derive(Default)]
765struct SelectionHistory {
766 #[allow(clippy::type_complexity)]
767 selections_by_transaction:
768 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
769 mode: SelectionHistoryMode,
770 undo_stack: VecDeque<SelectionHistoryEntry>,
771 redo_stack: VecDeque<SelectionHistoryEntry>,
772}
773
774impl SelectionHistory {
775 fn insert_transaction(
776 &mut self,
777 transaction_id: TransactionId,
778 selections: Arc<[Selection<Anchor>]>,
779 ) {
780 self.selections_by_transaction
781 .insert(transaction_id, (selections, None));
782 }
783
784 #[allow(clippy::type_complexity)]
785 fn transaction(
786 &self,
787 transaction_id: TransactionId,
788 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
789 self.selections_by_transaction.get(&transaction_id)
790 }
791
792 #[allow(clippy::type_complexity)]
793 fn transaction_mut(
794 &mut self,
795 transaction_id: TransactionId,
796 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
797 self.selections_by_transaction.get_mut(&transaction_id)
798 }
799
800 fn push(&mut self, entry: SelectionHistoryEntry) {
801 if !entry.selections.is_empty() {
802 match self.mode {
803 SelectionHistoryMode::Normal => {
804 self.push_undo(entry);
805 self.redo_stack.clear();
806 }
807 SelectionHistoryMode::Undoing => self.push_redo(entry),
808 SelectionHistoryMode::Redoing => self.push_undo(entry),
809 }
810 }
811 }
812
813 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
814 if self
815 .undo_stack
816 .back()
817 .map_or(true, |e| e.selections != entry.selections)
818 {
819 self.undo_stack.push_back(entry);
820 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
821 self.undo_stack.pop_front();
822 }
823 }
824 }
825
826 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
827 if self
828 .redo_stack
829 .back()
830 .map_or(true, |e| e.selections != entry.selections)
831 {
832 self.redo_stack.push_back(entry);
833 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
834 self.redo_stack.pop_front();
835 }
836 }
837 }
838}
839
840struct RowHighlight {
841 index: usize,
842 range: Range<Anchor>,
843 color: Hsla,
844 should_autoscroll: bool,
845}
846
847#[derive(Clone, Debug)]
848struct AddSelectionsState {
849 above: bool,
850 stack: Vec<usize>,
851}
852
853#[derive(Clone)]
854struct SelectNextState {
855 query: AhoCorasick,
856 wordwise: bool,
857 done: bool,
858}
859
860impl std::fmt::Debug for SelectNextState {
861 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
862 f.debug_struct(std::any::type_name::<Self>())
863 .field("wordwise", &self.wordwise)
864 .field("done", &self.done)
865 .finish()
866 }
867}
868
869#[derive(Debug)]
870struct AutocloseRegion {
871 selection_id: usize,
872 range: Range<Anchor>,
873 pair: BracketPair,
874}
875
876#[derive(Debug)]
877struct SnippetState {
878 ranges: Vec<Vec<Range<Anchor>>>,
879 active_index: usize,
880 choices: Vec<Option<Vec<String>>>,
881}
882
883#[doc(hidden)]
884pub struct RenameState {
885 pub range: Range<Anchor>,
886 pub old_name: Arc<str>,
887 pub editor: View<Editor>,
888 block_id: CustomBlockId,
889}
890
891struct InvalidationStack<T>(Vec<T>);
892
893struct RegisteredInlineCompletionProvider {
894 provider: Arc<dyn InlineCompletionProviderHandle>,
895 _subscription: Subscription,
896}
897
898enum ContextMenu {
899 Completions(CompletionsMenu),
900 CodeActions(CodeActionsMenu),
901}
902
903impl ContextMenu {
904 fn select_first(
905 &mut self,
906 provider: Option<&dyn CompletionProvider>,
907 cx: &mut ViewContext<Editor>,
908 ) -> bool {
909 if self.visible() {
910 match self {
911 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
912 ContextMenu::CodeActions(menu) => menu.select_first(cx),
913 }
914 true
915 } else {
916 false
917 }
918 }
919
920 fn select_prev(
921 &mut self,
922 provider: Option<&dyn CompletionProvider>,
923 cx: &mut ViewContext<Editor>,
924 ) -> bool {
925 if self.visible() {
926 match self {
927 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
928 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
929 }
930 true
931 } else {
932 false
933 }
934 }
935
936 fn select_next(
937 &mut self,
938 provider: Option<&dyn CompletionProvider>,
939 cx: &mut ViewContext<Editor>,
940 ) -> bool {
941 if self.visible() {
942 match self {
943 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
944 ContextMenu::CodeActions(menu) => menu.select_next(cx),
945 }
946 true
947 } else {
948 false
949 }
950 }
951
952 fn select_last(
953 &mut self,
954 provider: Option<&dyn CompletionProvider>,
955 cx: &mut ViewContext<Editor>,
956 ) -> bool {
957 if self.visible() {
958 match self {
959 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
960 ContextMenu::CodeActions(menu) => menu.select_last(cx),
961 }
962 true
963 } else {
964 false
965 }
966 }
967
968 fn visible(&self) -> bool {
969 match self {
970 ContextMenu::Completions(menu) => menu.visible(),
971 ContextMenu::CodeActions(menu) => menu.visible(),
972 }
973 }
974
975 fn render(
976 &self,
977 cursor_position: DisplayPoint,
978 style: &EditorStyle,
979 max_height: Pixels,
980 workspace: Option<WeakView<Workspace>>,
981 cx: &mut ViewContext<Editor>,
982 ) -> (ContextMenuOrigin, AnyElement) {
983 match self {
984 ContextMenu::Completions(menu) => (
985 ContextMenuOrigin::EditorPoint(cursor_position),
986 menu.render(style, max_height, workspace, cx),
987 ),
988 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
989 }
990 }
991}
992
993enum ContextMenuOrigin {
994 EditorPoint(DisplayPoint),
995 GutterIndicator(DisplayRow),
996}
997
998#[derive(Clone, Debug)]
999struct CompletionsMenu {
1000 id: CompletionId,
1001 sort_completions: bool,
1002 initial_position: Anchor,
1003 buffer: Model<Buffer>,
1004 completions: Arc<RwLock<Box<[Completion]>>>,
1005 match_candidates: Arc<[StringMatchCandidate]>,
1006 matches: Arc<[StringMatch]>,
1007 selected_item: usize,
1008 scroll_handle: UniformListScrollHandle,
1009 selected_completion_documentation_resolve_debounce: Option<Arc<Mutex<DebouncedDelay>>>,
1010}
1011
1012impl CompletionsMenu {
1013 fn new(
1014 id: CompletionId,
1015 sort_completions: bool,
1016 initial_position: Anchor,
1017 buffer: Model<Buffer>,
1018 completions: Box<[Completion]>,
1019 ) -> Self {
1020 let match_candidates = completions
1021 .iter()
1022 .enumerate()
1023 .map(|(id, completion)| {
1024 StringMatchCandidate::new(
1025 id,
1026 completion.label.text[completion.label.filter_range.clone()].into(),
1027 )
1028 })
1029 .collect();
1030
1031 Self {
1032 id,
1033 sort_completions,
1034 initial_position,
1035 buffer,
1036 completions: Arc::new(RwLock::new(completions)),
1037 match_candidates,
1038 matches: Vec::new().into(),
1039 selected_item: 0,
1040 scroll_handle: UniformListScrollHandle::new(),
1041 selected_completion_documentation_resolve_debounce: Some(Arc::new(Mutex::new(
1042 DebouncedDelay::new(),
1043 ))),
1044 }
1045 }
1046
1047 fn new_snippet_choices(
1048 id: CompletionId,
1049 sort_completions: bool,
1050 choices: &Vec<String>,
1051 selection: Range<Anchor>,
1052 buffer: Model<Buffer>,
1053 ) -> Self {
1054 let completions = choices
1055 .iter()
1056 .map(|choice| Completion {
1057 old_range: selection.start.text_anchor..selection.end.text_anchor,
1058 new_text: choice.to_string(),
1059 label: CodeLabel {
1060 text: choice.to_string(),
1061 runs: Default::default(),
1062 filter_range: Default::default(),
1063 },
1064 server_id: LanguageServerId(usize::MAX),
1065 documentation: None,
1066 lsp_completion: Default::default(),
1067 confirm: None,
1068 })
1069 .collect();
1070
1071 let match_candidates = choices
1072 .iter()
1073 .enumerate()
1074 .map(|(id, completion)| StringMatchCandidate::new(id, completion.to_string()))
1075 .collect();
1076 let matches = choices
1077 .iter()
1078 .enumerate()
1079 .map(|(id, completion)| StringMatch {
1080 candidate_id: id,
1081 score: 1.,
1082 positions: vec![],
1083 string: completion.clone(),
1084 })
1085 .collect();
1086 Self {
1087 id,
1088 sort_completions,
1089 initial_position: selection.start,
1090 buffer,
1091 completions: Arc::new(RwLock::new(completions)),
1092 match_candidates,
1093 matches,
1094 selected_item: 0,
1095 scroll_handle: UniformListScrollHandle::new(),
1096 selected_completion_documentation_resolve_debounce: Some(Arc::new(Mutex::new(
1097 DebouncedDelay::new(),
1098 ))),
1099 }
1100 }
1101
1102 fn suppress_documentation_resolution(mut self) -> Self {
1103 self.selected_completion_documentation_resolve_debounce
1104 .take();
1105 self
1106 }
1107
1108 fn select_first(
1109 &mut self,
1110 provider: Option<&dyn CompletionProvider>,
1111 cx: &mut ViewContext<Editor>,
1112 ) {
1113 self.selected_item = 0;
1114 self.scroll_handle
1115 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1116 self.attempt_resolve_selected_completion_documentation(provider, cx);
1117 cx.notify();
1118 }
1119
1120 fn select_prev(
1121 &mut self,
1122 provider: Option<&dyn CompletionProvider>,
1123 cx: &mut ViewContext<Editor>,
1124 ) {
1125 if self.selected_item > 0 {
1126 self.selected_item -= 1;
1127 } else {
1128 self.selected_item = self.matches.len() - 1;
1129 }
1130 self.scroll_handle
1131 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1132 self.attempt_resolve_selected_completion_documentation(provider, cx);
1133 cx.notify();
1134 }
1135
1136 fn select_next(
1137 &mut self,
1138 provider: Option<&dyn CompletionProvider>,
1139 cx: &mut ViewContext<Editor>,
1140 ) {
1141 if self.selected_item + 1 < self.matches.len() {
1142 self.selected_item += 1;
1143 } else {
1144 self.selected_item = 0;
1145 }
1146 self.scroll_handle
1147 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1148 self.attempt_resolve_selected_completion_documentation(provider, cx);
1149 cx.notify();
1150 }
1151
1152 fn select_last(
1153 &mut self,
1154 provider: Option<&dyn CompletionProvider>,
1155 cx: &mut ViewContext<Editor>,
1156 ) {
1157 self.selected_item = self.matches.len() - 1;
1158 self.scroll_handle
1159 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1160 self.attempt_resolve_selected_completion_documentation(provider, cx);
1161 cx.notify();
1162 }
1163
1164 fn pre_resolve_completion_documentation(
1165 buffer: Model<Buffer>,
1166 completions: Arc<RwLock<Box<[Completion]>>>,
1167 matches: Arc<[StringMatch]>,
1168 editor: &Editor,
1169 cx: &mut ViewContext<Editor>,
1170 ) -> Task<()> {
1171 let settings = EditorSettings::get_global(cx);
1172 if !settings.show_completion_documentation {
1173 return Task::ready(());
1174 }
1175
1176 let Some(provider) = editor.completion_provider.as_ref() else {
1177 return Task::ready(());
1178 };
1179
1180 let resolve_task = provider.resolve_completions(
1181 buffer,
1182 matches.iter().map(|m| m.candidate_id).collect(),
1183 completions.clone(),
1184 cx,
1185 );
1186
1187 cx.spawn(move |this, mut cx| async move {
1188 if let Some(true) = resolve_task.await.log_err() {
1189 this.update(&mut cx, |_, cx| cx.notify()).ok();
1190 }
1191 })
1192 }
1193
1194 fn attempt_resolve_selected_completion_documentation(
1195 &mut self,
1196 provider: Option<&dyn CompletionProvider>,
1197 cx: &mut ViewContext<Editor>,
1198 ) {
1199 let settings = EditorSettings::get_global(cx);
1200 if !settings.show_completion_documentation {
1201 return;
1202 }
1203
1204 let completion_index = self.matches[self.selected_item].candidate_id;
1205 let Some(provider) = provider else {
1206 return;
1207 };
1208 let Some(documentation_resolve) = self
1209 .selected_completion_documentation_resolve_debounce
1210 .as_ref()
1211 else {
1212 return;
1213 };
1214
1215 let resolve_task = provider.resolve_completions(
1216 self.buffer.clone(),
1217 vec![completion_index],
1218 self.completions.clone(),
1219 cx,
1220 );
1221
1222 let delay_ms =
1223 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1224 let delay = Duration::from_millis(delay_ms);
1225
1226 documentation_resolve.lock().fire_new(delay, cx, |_, cx| {
1227 cx.spawn(move |this, mut cx| async move {
1228 if let Some(true) = resolve_task.await.log_err() {
1229 this.update(&mut cx, |_, cx| cx.notify()).ok();
1230 }
1231 })
1232 });
1233 }
1234
1235 fn visible(&self) -> bool {
1236 !self.matches.is_empty()
1237 }
1238
1239 fn render(
1240 &self,
1241 style: &EditorStyle,
1242 max_height: Pixels,
1243 workspace: Option<WeakView<Workspace>>,
1244 cx: &mut ViewContext<Editor>,
1245 ) -> AnyElement {
1246 let settings = EditorSettings::get_global(cx);
1247 let show_completion_documentation = settings.show_completion_documentation;
1248
1249 let widest_completion_ix = self
1250 .matches
1251 .iter()
1252 .enumerate()
1253 .max_by_key(|(_, mat)| {
1254 let completions = self.completions.read();
1255 let completion = &completions[mat.candidate_id];
1256 let documentation = &completion.documentation;
1257
1258 let mut len = completion.label.text.chars().count();
1259 if let Some(Documentation::SingleLine(text)) = documentation {
1260 if show_completion_documentation {
1261 len += text.chars().count();
1262 }
1263 }
1264
1265 len
1266 })
1267 .map(|(ix, _)| ix);
1268
1269 let completions = self.completions.clone();
1270 let matches = self.matches.clone();
1271 let selected_item = self.selected_item;
1272 let style = style.clone();
1273
1274 let multiline_docs = if show_completion_documentation {
1275 let mat = &self.matches[selected_item];
1276 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1277 Some(Documentation::MultiLinePlainText(text)) => {
1278 Some(div().child(SharedString::from(text.clone())))
1279 }
1280 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1281 Some(div().child(render_parsed_markdown(
1282 "completions_markdown",
1283 parsed,
1284 &style,
1285 workspace,
1286 cx,
1287 )))
1288 }
1289 _ => None,
1290 };
1291 multiline_docs.map(|div| {
1292 div.id("multiline_docs")
1293 .max_h(max_height)
1294 .flex_1()
1295 .px_1p5()
1296 .py_1()
1297 .min_w(px(260.))
1298 .max_w(px(640.))
1299 .w(px(500.))
1300 .overflow_y_scroll()
1301 .occlude()
1302 })
1303 } else {
1304 None
1305 };
1306
1307 let list = uniform_list(
1308 cx.view().clone(),
1309 "completions",
1310 matches.len(),
1311 move |_editor, range, cx| {
1312 let start_ix = range.start;
1313 let completions_guard = completions.read();
1314
1315 matches[range]
1316 .iter()
1317 .enumerate()
1318 .map(|(ix, mat)| {
1319 let item_ix = start_ix + ix;
1320 let candidate_id = mat.candidate_id;
1321 let completion = &completions_guard[candidate_id];
1322
1323 let documentation = if show_completion_documentation {
1324 &completion.documentation
1325 } else {
1326 &None
1327 };
1328
1329 let highlights = gpui::combine_highlights(
1330 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1331 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1332 |(range, mut highlight)| {
1333 // Ignore font weight for syntax highlighting, as we'll use it
1334 // for fuzzy matches.
1335 highlight.font_weight = None;
1336
1337 if completion.lsp_completion.deprecated.unwrap_or(false) {
1338 highlight.strikethrough = Some(StrikethroughStyle {
1339 thickness: 1.0.into(),
1340 ..Default::default()
1341 });
1342 highlight.color = Some(cx.theme().colors().text_muted);
1343 }
1344
1345 (range, highlight)
1346 },
1347 ),
1348 );
1349 let completion_label = StyledText::new(completion.label.text.clone())
1350 .with_highlights(&style.text, highlights);
1351 let documentation_label =
1352 if let Some(Documentation::SingleLine(text)) = documentation {
1353 if text.trim().is_empty() {
1354 None
1355 } else {
1356 Some(
1357 Label::new(text.clone())
1358 .ml_4()
1359 .size(LabelSize::Small)
1360 .color(Color::Muted),
1361 )
1362 }
1363 } else {
1364 None
1365 };
1366
1367 let color_swatch = completion
1368 .color()
1369 .map(|color| div().size_4().bg(color).rounded_sm());
1370
1371 div().min_w(px(220.)).max_w(px(540.)).child(
1372 ListItem::new(mat.candidate_id)
1373 .inset(true)
1374 .selected(item_ix == selected_item)
1375 .on_click(cx.listener(move |editor, _event, cx| {
1376 cx.stop_propagation();
1377 if let Some(task) = editor.confirm_completion(
1378 &ConfirmCompletion {
1379 item_ix: Some(item_ix),
1380 },
1381 cx,
1382 ) {
1383 task.detach_and_log_err(cx)
1384 }
1385 }))
1386 .start_slot::<Div>(color_swatch)
1387 .child(h_flex().overflow_hidden().child(completion_label))
1388 .end_slot::<Label>(documentation_label),
1389 )
1390 })
1391 .collect()
1392 },
1393 )
1394 .occlude()
1395 .max_h(max_height)
1396 .track_scroll(self.scroll_handle.clone())
1397 .with_width_from_item(widest_completion_ix)
1398 .with_sizing_behavior(ListSizingBehavior::Infer);
1399
1400 Popover::new()
1401 .child(list)
1402 .when_some(multiline_docs, |popover, multiline_docs| {
1403 popover.aside(multiline_docs)
1404 })
1405 .into_any_element()
1406 }
1407
1408 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1409 let mut matches = if let Some(query) = query {
1410 fuzzy::match_strings(
1411 &self.match_candidates,
1412 query,
1413 query.chars().any(|c| c.is_uppercase()),
1414 100,
1415 &Default::default(),
1416 executor,
1417 )
1418 .await
1419 } else {
1420 self.match_candidates
1421 .iter()
1422 .enumerate()
1423 .map(|(candidate_id, candidate)| StringMatch {
1424 candidate_id,
1425 score: Default::default(),
1426 positions: Default::default(),
1427 string: candidate.string.clone(),
1428 })
1429 .collect()
1430 };
1431
1432 // Remove all candidates where the query's start does not match the start of any word in the candidate
1433 if let Some(query) = query {
1434 if let Some(query_start) = query.chars().next() {
1435 matches.retain(|string_match| {
1436 split_words(&string_match.string).any(|word| {
1437 // Check that the first codepoint of the word as lowercase matches the first
1438 // codepoint of the query as lowercase
1439 word.chars()
1440 .flat_map(|codepoint| codepoint.to_lowercase())
1441 .zip(query_start.to_lowercase())
1442 .all(|(word_cp, query_cp)| word_cp == query_cp)
1443 })
1444 });
1445 }
1446 }
1447
1448 let completions = self.completions.read();
1449 if self.sort_completions {
1450 matches.sort_unstable_by_key(|mat| {
1451 // We do want to strike a balance here between what the language server tells us
1452 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1453 // `Creat` and there is a local variable called `CreateComponent`).
1454 // So what we do is: we bucket all matches into two buckets
1455 // - Strong matches
1456 // - Weak matches
1457 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1458 // and the Weak matches are the rest.
1459 //
1460 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1461 // matches, we prefer language-server sort_text first.
1462 //
1463 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1464 // Rest of the matches(weak) can be sorted as language-server expects.
1465
1466 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1467 enum MatchScore<'a> {
1468 Strong {
1469 score: Reverse<OrderedFloat<f64>>,
1470 sort_text: Option<&'a str>,
1471 sort_key: (usize, &'a str),
1472 },
1473 Weak {
1474 sort_text: Option<&'a str>,
1475 score: Reverse<OrderedFloat<f64>>,
1476 sort_key: (usize, &'a str),
1477 },
1478 }
1479
1480 let completion = &completions[mat.candidate_id];
1481 let sort_key = completion.sort_key();
1482 let sort_text = completion.lsp_completion.sort_text.as_deref();
1483 let score = Reverse(OrderedFloat(mat.score));
1484
1485 if mat.score >= 0.2 {
1486 MatchScore::Strong {
1487 score,
1488 sort_text,
1489 sort_key,
1490 }
1491 } else {
1492 MatchScore::Weak {
1493 sort_text,
1494 score,
1495 sort_key,
1496 }
1497 }
1498 });
1499 }
1500
1501 for mat in &mut matches {
1502 let completion = &completions[mat.candidate_id];
1503 mat.string.clone_from(&completion.label.text);
1504 for position in &mut mat.positions {
1505 *position += completion.label.filter_range.start;
1506 }
1507 }
1508 drop(completions);
1509
1510 self.matches = matches.into();
1511 self.selected_item = 0;
1512 }
1513}
1514
1515#[derive(Clone)]
1516struct AvailableCodeAction {
1517 excerpt_id: ExcerptId,
1518 action: CodeAction,
1519 provider: Arc<dyn CodeActionProvider>,
1520}
1521
1522#[derive(Clone)]
1523struct CodeActionContents {
1524 tasks: Option<Arc<ResolvedTasks>>,
1525 actions: Option<Arc<[AvailableCodeAction]>>,
1526}
1527
1528impl CodeActionContents {
1529 fn len(&self) -> usize {
1530 match (&self.tasks, &self.actions) {
1531 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1532 (Some(tasks), None) => tasks.templates.len(),
1533 (None, Some(actions)) => actions.len(),
1534 (None, None) => 0,
1535 }
1536 }
1537
1538 fn is_empty(&self) -> bool {
1539 match (&self.tasks, &self.actions) {
1540 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1541 (Some(tasks), None) => tasks.templates.is_empty(),
1542 (None, Some(actions)) => actions.is_empty(),
1543 (None, None) => true,
1544 }
1545 }
1546
1547 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1548 self.tasks
1549 .iter()
1550 .flat_map(|tasks| {
1551 tasks
1552 .templates
1553 .iter()
1554 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1555 })
1556 .chain(self.actions.iter().flat_map(|actions| {
1557 actions.iter().map(|available| CodeActionsItem::CodeAction {
1558 excerpt_id: available.excerpt_id,
1559 action: available.action.clone(),
1560 provider: available.provider.clone(),
1561 })
1562 }))
1563 }
1564 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1565 match (&self.tasks, &self.actions) {
1566 (Some(tasks), Some(actions)) => {
1567 if index < tasks.templates.len() {
1568 tasks
1569 .templates
1570 .get(index)
1571 .cloned()
1572 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1573 } else {
1574 actions.get(index - tasks.templates.len()).map(|available| {
1575 CodeActionsItem::CodeAction {
1576 excerpt_id: available.excerpt_id,
1577 action: available.action.clone(),
1578 provider: available.provider.clone(),
1579 }
1580 })
1581 }
1582 }
1583 (Some(tasks), None) => tasks
1584 .templates
1585 .get(index)
1586 .cloned()
1587 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1588 (None, Some(actions)) => {
1589 actions
1590 .get(index)
1591 .map(|available| CodeActionsItem::CodeAction {
1592 excerpt_id: available.excerpt_id,
1593 action: available.action.clone(),
1594 provider: available.provider.clone(),
1595 })
1596 }
1597 (None, None) => None,
1598 }
1599 }
1600}
1601
1602#[allow(clippy::large_enum_variant)]
1603#[derive(Clone)]
1604enum CodeActionsItem {
1605 Task(TaskSourceKind, ResolvedTask),
1606 CodeAction {
1607 excerpt_id: ExcerptId,
1608 action: CodeAction,
1609 provider: Arc<dyn CodeActionProvider>,
1610 },
1611}
1612
1613impl CodeActionsItem {
1614 fn as_task(&self) -> Option<&ResolvedTask> {
1615 let Self::Task(_, task) = self else {
1616 return None;
1617 };
1618 Some(task)
1619 }
1620 fn as_code_action(&self) -> Option<&CodeAction> {
1621 let Self::CodeAction { action, .. } = self else {
1622 return None;
1623 };
1624 Some(action)
1625 }
1626 fn label(&self) -> String {
1627 match self {
1628 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1629 Self::Task(_, task) => task.resolved_label.clone(),
1630 }
1631 }
1632}
1633
1634struct CodeActionsMenu {
1635 actions: CodeActionContents,
1636 buffer: Model<Buffer>,
1637 selected_item: usize,
1638 scroll_handle: UniformListScrollHandle,
1639 deployed_from_indicator: Option<DisplayRow>,
1640}
1641
1642impl CodeActionsMenu {
1643 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1644 self.selected_item = 0;
1645 self.scroll_handle
1646 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1647 cx.notify()
1648 }
1649
1650 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1651 if self.selected_item > 0 {
1652 self.selected_item -= 1;
1653 } else {
1654 self.selected_item = self.actions.len() - 1;
1655 }
1656 self.scroll_handle
1657 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1658 cx.notify();
1659 }
1660
1661 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1662 if self.selected_item + 1 < self.actions.len() {
1663 self.selected_item += 1;
1664 } else {
1665 self.selected_item = 0;
1666 }
1667 self.scroll_handle
1668 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1669 cx.notify();
1670 }
1671
1672 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1673 self.selected_item = self.actions.len() - 1;
1674 self.scroll_handle
1675 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1676 cx.notify()
1677 }
1678
1679 fn visible(&self) -> bool {
1680 !self.actions.is_empty()
1681 }
1682
1683 fn render(
1684 &self,
1685 cursor_position: DisplayPoint,
1686 _style: &EditorStyle,
1687 max_height: Pixels,
1688 cx: &mut ViewContext<Editor>,
1689 ) -> (ContextMenuOrigin, AnyElement) {
1690 let actions = self.actions.clone();
1691 let selected_item = self.selected_item;
1692 let element = uniform_list(
1693 cx.view().clone(),
1694 "code_actions_menu",
1695 self.actions.len(),
1696 move |_this, range, cx| {
1697 actions
1698 .iter()
1699 .skip(range.start)
1700 .take(range.end - range.start)
1701 .enumerate()
1702 .map(|(ix, action)| {
1703 let item_ix = range.start + ix;
1704 let selected = selected_item == item_ix;
1705 let colors = cx.theme().colors();
1706 div()
1707 .px_1()
1708 .rounded_md()
1709 .text_color(colors.text)
1710 .when(selected, |style| {
1711 style
1712 .bg(colors.element_active)
1713 .text_color(colors.text_accent)
1714 })
1715 .hover(|style| {
1716 style
1717 .bg(colors.element_hover)
1718 .text_color(colors.text_accent)
1719 })
1720 .whitespace_nowrap()
1721 .when_some(action.as_code_action(), |this, action| {
1722 this.on_mouse_down(
1723 MouseButton::Left,
1724 cx.listener(move |editor, _, cx| {
1725 cx.stop_propagation();
1726 if let Some(task) = editor.confirm_code_action(
1727 &ConfirmCodeAction {
1728 item_ix: Some(item_ix),
1729 },
1730 cx,
1731 ) {
1732 task.detach_and_log_err(cx)
1733 }
1734 }),
1735 )
1736 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1737 .child(SharedString::from(action.lsp_action.title.clone()))
1738 })
1739 .when_some(action.as_task(), |this, task| {
1740 this.on_mouse_down(
1741 MouseButton::Left,
1742 cx.listener(move |editor, _, cx| {
1743 cx.stop_propagation();
1744 if let Some(task) = editor.confirm_code_action(
1745 &ConfirmCodeAction {
1746 item_ix: Some(item_ix),
1747 },
1748 cx,
1749 ) {
1750 task.detach_and_log_err(cx)
1751 }
1752 }),
1753 )
1754 .child(SharedString::from(task.resolved_label.clone()))
1755 })
1756 })
1757 .collect()
1758 },
1759 )
1760 .elevation_1(cx)
1761 .p_1()
1762 .max_h(max_height)
1763 .occlude()
1764 .track_scroll(self.scroll_handle.clone())
1765 .with_width_from_item(
1766 self.actions
1767 .iter()
1768 .enumerate()
1769 .max_by_key(|(_, action)| match action {
1770 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1771 CodeActionsItem::CodeAction { action, .. } => {
1772 action.lsp_action.title.chars().count()
1773 }
1774 })
1775 .map(|(ix, _)| ix),
1776 )
1777 .with_sizing_behavior(ListSizingBehavior::Infer)
1778 .into_any_element();
1779
1780 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1781 ContextMenuOrigin::GutterIndicator(row)
1782 } else {
1783 ContextMenuOrigin::EditorPoint(cursor_position)
1784 };
1785
1786 (cursor_position, element)
1787 }
1788}
1789
1790#[derive(Debug)]
1791struct ActiveDiagnosticGroup {
1792 primary_range: Range<Anchor>,
1793 primary_message: String,
1794 group_id: usize,
1795 blocks: HashMap<CustomBlockId, Diagnostic>,
1796 is_valid: bool,
1797}
1798
1799#[derive(Serialize, Deserialize, Clone, Debug)]
1800pub struct ClipboardSelection {
1801 pub len: usize,
1802 pub is_entire_line: bool,
1803 pub first_line_indent: u32,
1804}
1805
1806#[derive(Debug)]
1807pub(crate) struct NavigationData {
1808 cursor_anchor: Anchor,
1809 cursor_position: Point,
1810 scroll_anchor: ScrollAnchor,
1811 scroll_top_row: u32,
1812}
1813
1814#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1815pub enum GotoDefinitionKind {
1816 Symbol,
1817 Declaration,
1818 Type,
1819 Implementation,
1820}
1821
1822#[derive(Debug, Clone)]
1823enum InlayHintRefreshReason {
1824 Toggle(bool),
1825 SettingsChange(InlayHintSettings),
1826 NewLinesShown,
1827 BufferEdited(HashSet<Arc<Language>>),
1828 RefreshRequested,
1829 ExcerptsRemoved(Vec<ExcerptId>),
1830}
1831
1832impl InlayHintRefreshReason {
1833 fn description(&self) -> &'static str {
1834 match self {
1835 Self::Toggle(_) => "toggle",
1836 Self::SettingsChange(_) => "settings change",
1837 Self::NewLinesShown => "new lines shown",
1838 Self::BufferEdited(_) => "buffer edited",
1839 Self::RefreshRequested => "refresh requested",
1840 Self::ExcerptsRemoved(_) => "excerpts removed",
1841 }
1842 }
1843}
1844
1845pub(crate) struct FocusedBlock {
1846 id: BlockId,
1847 focus_handle: WeakFocusHandle,
1848}
1849
1850#[derive(Clone)]
1851struct JumpData {
1852 excerpt_id: ExcerptId,
1853 position: Point,
1854 anchor: text::Anchor,
1855 path: Option<project::ProjectPath>,
1856 line_offset_from_top: u32,
1857}
1858
1859impl Editor {
1860 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1861 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1862 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1863 Self::new(
1864 EditorMode::SingleLine { auto_width: false },
1865 buffer,
1866 None,
1867 false,
1868 cx,
1869 )
1870 }
1871
1872 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1873 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1874 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1875 Self::new(EditorMode::Full, buffer, None, false, cx)
1876 }
1877
1878 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1879 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1880 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1881 Self::new(
1882 EditorMode::SingleLine { auto_width: true },
1883 buffer,
1884 None,
1885 false,
1886 cx,
1887 )
1888 }
1889
1890 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1891 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1892 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1893 Self::new(
1894 EditorMode::AutoHeight { max_lines },
1895 buffer,
1896 None,
1897 false,
1898 cx,
1899 )
1900 }
1901
1902 pub fn for_buffer(
1903 buffer: Model<Buffer>,
1904 project: Option<Model<Project>>,
1905 cx: &mut ViewContext<Self>,
1906 ) -> Self {
1907 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1908 Self::new(EditorMode::Full, buffer, project, false, cx)
1909 }
1910
1911 pub fn for_multibuffer(
1912 buffer: Model<MultiBuffer>,
1913 project: Option<Model<Project>>,
1914 show_excerpt_controls: bool,
1915 cx: &mut ViewContext<Self>,
1916 ) -> Self {
1917 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1918 }
1919
1920 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1921 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1922 let mut clone = Self::new(
1923 self.mode,
1924 self.buffer.clone(),
1925 self.project.clone(),
1926 show_excerpt_controls,
1927 cx,
1928 );
1929 self.display_map.update(cx, |display_map, cx| {
1930 let snapshot = display_map.snapshot(cx);
1931 clone.display_map.update(cx, |display_map, cx| {
1932 display_map.set_state(&snapshot, cx);
1933 });
1934 });
1935 clone.selections.clone_state(&self.selections);
1936 clone.scroll_manager.clone_state(&self.scroll_manager);
1937 clone.searchable = self.searchable;
1938 clone
1939 }
1940
1941 pub fn new(
1942 mode: EditorMode,
1943 buffer: Model<MultiBuffer>,
1944 project: Option<Model<Project>>,
1945 show_excerpt_controls: bool,
1946 cx: &mut ViewContext<Self>,
1947 ) -> Self {
1948 let style = cx.text_style();
1949 let font_size = style.font_size.to_pixels(cx.rem_size());
1950 let editor = cx.view().downgrade();
1951 let fold_placeholder = FoldPlaceholder {
1952 constrain_width: true,
1953 render: Arc::new(move |fold_id, fold_range, cx| {
1954 let editor = editor.clone();
1955 div()
1956 .id(fold_id)
1957 .bg(cx.theme().colors().ghost_element_background)
1958 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1959 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1960 .rounded_sm()
1961 .size_full()
1962 .cursor_pointer()
1963 .child("⋯")
1964 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1965 .on_click(move |_, cx| {
1966 editor
1967 .update(cx, |editor, cx| {
1968 editor.unfold_ranges(
1969 &[fold_range.start..fold_range.end],
1970 true,
1971 false,
1972 cx,
1973 );
1974 cx.stop_propagation();
1975 })
1976 .ok();
1977 })
1978 .into_any()
1979 }),
1980 merge_adjacent: true,
1981 ..Default::default()
1982 };
1983 let display_map = cx.new_model(|cx| {
1984 DisplayMap::new(
1985 buffer.clone(),
1986 style.font(),
1987 font_size,
1988 None,
1989 show_excerpt_controls,
1990 FILE_HEADER_HEIGHT,
1991 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1992 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1993 fold_placeholder,
1994 cx,
1995 )
1996 });
1997
1998 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1999
2000 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
2001
2002 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
2003 .then(|| language_settings::SoftWrap::None);
2004
2005 let mut project_subscriptions = Vec::new();
2006 if mode == EditorMode::Full {
2007 if let Some(project) = project.as_ref() {
2008 if buffer.read(cx).is_singleton() {
2009 project_subscriptions.push(cx.observe(project, |_, _, cx| {
2010 cx.emit(EditorEvent::TitleChanged);
2011 }));
2012 }
2013 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
2014 if let project::Event::RefreshInlayHints = event {
2015 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
2016 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
2017 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
2018 let focus_handle = editor.focus_handle(cx);
2019 if focus_handle.is_focused(cx) {
2020 let snapshot = buffer.read(cx).snapshot();
2021 for (range, snippet) in snippet_edits {
2022 let editor_range =
2023 language::range_from_lsp(*range).to_offset(&snapshot);
2024 editor
2025 .insert_snippet(&[editor_range], snippet.clone(), cx)
2026 .ok();
2027 }
2028 }
2029 }
2030 }
2031 }));
2032 if let Some(task_inventory) = project
2033 .read(cx)
2034 .task_store()
2035 .read(cx)
2036 .task_inventory()
2037 .cloned()
2038 {
2039 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
2040 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
2041 }));
2042 }
2043 }
2044 }
2045
2046 let inlay_hint_settings = inlay_hint_settings(
2047 selections.newest_anchor().head(),
2048 &buffer.read(cx).snapshot(cx),
2049 cx,
2050 );
2051 let focus_handle = cx.focus_handle();
2052 cx.on_focus(&focus_handle, Self::handle_focus).detach();
2053 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
2054 .detach();
2055 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
2056 .detach();
2057 cx.on_blur(&focus_handle, Self::handle_blur).detach();
2058
2059 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
2060 Some(false)
2061 } else {
2062 None
2063 };
2064
2065 let mut code_action_providers = Vec::new();
2066 if let Some(project) = project.clone() {
2067 code_action_providers.push(Arc::new(project) as Arc<_>);
2068 }
2069
2070 let mut this = Self {
2071 focus_handle,
2072 show_cursor_when_unfocused: false,
2073 last_focused_descendant: None,
2074 buffer: buffer.clone(),
2075 display_map: display_map.clone(),
2076 selections,
2077 scroll_manager: ScrollManager::new(cx),
2078 columnar_selection_tail: None,
2079 add_selections_state: None,
2080 select_next_state: None,
2081 select_prev_state: None,
2082 selection_history: Default::default(),
2083 autoclose_regions: Default::default(),
2084 snippet_stack: Default::default(),
2085 select_larger_syntax_node_stack: Vec::new(),
2086 ime_transaction: Default::default(),
2087 active_diagnostics: None,
2088 soft_wrap_mode_override,
2089 completion_provider: project.clone().map(|project| Box::new(project) as _),
2090 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
2091 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
2092 project,
2093 blink_manager: blink_manager.clone(),
2094 show_local_selections: true,
2095 mode,
2096 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
2097 show_gutter: mode == EditorMode::Full,
2098 show_line_numbers: None,
2099 use_relative_line_numbers: None,
2100 show_git_diff_gutter: None,
2101 show_code_actions: None,
2102 show_runnables: None,
2103 show_wrap_guides: None,
2104 show_indent_guides,
2105 placeholder_text: None,
2106 highlight_order: 0,
2107 highlighted_rows: HashMap::default(),
2108 background_highlights: Default::default(),
2109 gutter_highlights: TreeMap::default(),
2110 scrollbar_marker_state: ScrollbarMarkerState::default(),
2111 active_indent_guides_state: ActiveIndentGuidesState::default(),
2112 nav_history: None,
2113 context_menu: RwLock::new(None),
2114 mouse_context_menu: None,
2115 completion_tasks: Default::default(),
2116 signature_help_state: SignatureHelpState::default(),
2117 auto_signature_help: None,
2118 find_all_references_task_sources: Vec::new(),
2119 next_completion_id: 0,
2120 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
2121 next_inlay_id: 0,
2122 code_action_providers,
2123 available_code_actions: Default::default(),
2124 code_actions_task: Default::default(),
2125 document_highlights_task: Default::default(),
2126 linked_editing_range_task: Default::default(),
2127 pending_rename: Default::default(),
2128 searchable: true,
2129 cursor_shape: EditorSettings::get_global(cx)
2130 .cursor_shape
2131 .unwrap_or_default(),
2132 current_line_highlight: None,
2133 autoindent_mode: Some(AutoindentMode::EachLine),
2134 collapse_matches: false,
2135 workspace: None,
2136 input_enabled: true,
2137 use_modal_editing: mode == EditorMode::Full,
2138 read_only: false,
2139 use_autoclose: true,
2140 use_auto_surround: true,
2141 auto_replace_emoji_shortcode: false,
2142 leader_peer_id: None,
2143 remote_id: None,
2144 hover_state: Default::default(),
2145 hovered_link_state: Default::default(),
2146 inline_completion_provider: None,
2147 active_inline_completion: None,
2148 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2149 expanded_hunks: ExpandedHunks::default(),
2150 gutter_hovered: false,
2151 pixel_position_of_newest_cursor: None,
2152 last_bounds: None,
2153 expect_bounds_change: None,
2154 gutter_dimensions: GutterDimensions::default(),
2155 style: None,
2156 show_cursor_names: false,
2157 hovered_cursors: Default::default(),
2158 next_editor_action_id: EditorActionId::default(),
2159 editor_actions: Rc::default(),
2160 show_inline_completions_override: None,
2161 enable_inline_completions: true,
2162 custom_context_menu: None,
2163 show_git_blame_gutter: false,
2164 show_git_blame_inline: false,
2165 show_selection_menu: None,
2166 show_git_blame_inline_delay_task: None,
2167 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2168 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2169 .session
2170 .restore_unsaved_buffers,
2171 blame: None,
2172 blame_subscription: None,
2173 tasks: Default::default(),
2174 _subscriptions: vec![
2175 cx.observe(&buffer, Self::on_buffer_changed),
2176 cx.subscribe(&buffer, Self::on_buffer_event),
2177 cx.observe(&display_map, Self::on_display_map_changed),
2178 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2179 cx.observe_global::<SettingsStore>(Self::settings_changed),
2180 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2181 cx.observe_window_activation(|editor, cx| {
2182 let active = cx.is_window_active();
2183 editor.blink_manager.update(cx, |blink_manager, cx| {
2184 if active {
2185 blink_manager.enable(cx);
2186 } else {
2187 blink_manager.disable(cx);
2188 }
2189 });
2190 }),
2191 ],
2192 tasks_update_task: None,
2193 linked_edit_ranges: Default::default(),
2194 previous_search_ranges: None,
2195 breadcrumb_header: None,
2196 focused_block: None,
2197 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2198 addons: HashMap::default(),
2199 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2200 text_style_refinement: None,
2201 };
2202 this.tasks_update_task = Some(this.refresh_runnables(cx));
2203 this._subscriptions.extend(project_subscriptions);
2204
2205 this.end_selection(cx);
2206 this.scroll_manager.show_scrollbar(cx);
2207
2208 if mode == EditorMode::Full {
2209 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2210 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2211
2212 if this.git_blame_inline_enabled {
2213 this.git_blame_inline_enabled = true;
2214 this.start_git_blame_inline(false, cx);
2215 }
2216 }
2217
2218 this.report_editor_event("open", None, cx);
2219 this
2220 }
2221
2222 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2223 self.mouse_context_menu
2224 .as_ref()
2225 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2226 }
2227
2228 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2229 let mut key_context = KeyContext::new_with_defaults();
2230 key_context.add("Editor");
2231 let mode = match self.mode {
2232 EditorMode::SingleLine { .. } => "single_line",
2233 EditorMode::AutoHeight { .. } => "auto_height",
2234 EditorMode::Full => "full",
2235 };
2236
2237 if EditorSettings::jupyter_enabled(cx) {
2238 key_context.add("jupyter");
2239 }
2240
2241 key_context.set("mode", mode);
2242 if self.pending_rename.is_some() {
2243 key_context.add("renaming");
2244 }
2245 if self.context_menu_visible() {
2246 match self.context_menu.read().as_ref() {
2247 Some(ContextMenu::Completions(_)) => {
2248 key_context.add("menu");
2249 key_context.add("showing_completions")
2250 }
2251 Some(ContextMenu::CodeActions(_)) => {
2252 key_context.add("menu");
2253 key_context.add("showing_code_actions")
2254 }
2255 None => {}
2256 }
2257 }
2258
2259 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2260 if !self.focus_handle(cx).contains_focused(cx)
2261 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2262 {
2263 for addon in self.addons.values() {
2264 addon.extend_key_context(&mut key_context, cx)
2265 }
2266 }
2267
2268 if let Some(extension) = self
2269 .buffer
2270 .read(cx)
2271 .as_singleton()
2272 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2273 {
2274 key_context.set("extension", extension.to_string());
2275 }
2276
2277 if self.has_active_inline_completion(cx) {
2278 key_context.add("copilot_suggestion");
2279 key_context.add("inline_completion");
2280 }
2281
2282 key_context
2283 }
2284
2285 pub fn new_file(
2286 workspace: &mut Workspace,
2287 _: &workspace::NewFile,
2288 cx: &mut ViewContext<Workspace>,
2289 ) {
2290 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2291 "Failed to create buffer",
2292 cx,
2293 |e, _| match e.error_code() {
2294 ErrorCode::RemoteUpgradeRequired => Some(format!(
2295 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2296 e.error_tag("required").unwrap_or("the latest version")
2297 )),
2298 _ => None,
2299 },
2300 );
2301 }
2302
2303 pub fn new_in_workspace(
2304 workspace: &mut Workspace,
2305 cx: &mut ViewContext<Workspace>,
2306 ) -> Task<Result<View<Editor>>> {
2307 let project = workspace.project().clone();
2308 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2309
2310 cx.spawn(|workspace, mut cx| async move {
2311 let buffer = create.await?;
2312 workspace.update(&mut cx, |workspace, cx| {
2313 let editor =
2314 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2315 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2316 editor
2317 })
2318 })
2319 }
2320
2321 fn new_file_vertical(
2322 workspace: &mut Workspace,
2323 _: &workspace::NewFileSplitVertical,
2324 cx: &mut ViewContext<Workspace>,
2325 ) {
2326 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2327 }
2328
2329 fn new_file_horizontal(
2330 workspace: &mut Workspace,
2331 _: &workspace::NewFileSplitHorizontal,
2332 cx: &mut ViewContext<Workspace>,
2333 ) {
2334 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2335 }
2336
2337 fn new_file_in_direction(
2338 workspace: &mut Workspace,
2339 direction: SplitDirection,
2340 cx: &mut ViewContext<Workspace>,
2341 ) {
2342 let project = workspace.project().clone();
2343 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2344
2345 cx.spawn(|workspace, mut cx| async move {
2346 let buffer = create.await?;
2347 workspace.update(&mut cx, move |workspace, cx| {
2348 workspace.split_item(
2349 direction,
2350 Box::new(
2351 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2352 ),
2353 cx,
2354 )
2355 })?;
2356 anyhow::Ok(())
2357 })
2358 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2359 ErrorCode::RemoteUpgradeRequired => Some(format!(
2360 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2361 e.error_tag("required").unwrap_or("the latest version")
2362 )),
2363 _ => None,
2364 });
2365 }
2366
2367 pub fn leader_peer_id(&self) -> Option<PeerId> {
2368 self.leader_peer_id
2369 }
2370
2371 pub fn buffer(&self) -> &Model<MultiBuffer> {
2372 &self.buffer
2373 }
2374
2375 pub fn workspace(&self) -> Option<View<Workspace>> {
2376 self.workspace.as_ref()?.0.upgrade()
2377 }
2378
2379 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2380 self.buffer().read(cx).title(cx)
2381 }
2382
2383 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2384 let git_blame_gutter_max_author_length = self
2385 .render_git_blame_gutter(cx)
2386 .then(|| {
2387 if let Some(blame) = self.blame.as_ref() {
2388 let max_author_length =
2389 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2390 Some(max_author_length)
2391 } else {
2392 None
2393 }
2394 })
2395 .flatten();
2396
2397 EditorSnapshot {
2398 mode: self.mode,
2399 show_gutter: self.show_gutter,
2400 show_line_numbers: self.show_line_numbers,
2401 show_git_diff_gutter: self.show_git_diff_gutter,
2402 show_code_actions: self.show_code_actions,
2403 show_runnables: self.show_runnables,
2404 git_blame_gutter_max_author_length,
2405 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2406 scroll_anchor: self.scroll_manager.anchor(),
2407 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2408 placeholder_text: self.placeholder_text.clone(),
2409 is_focused: self.focus_handle.is_focused(cx),
2410 current_line_highlight: self
2411 .current_line_highlight
2412 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2413 gutter_hovered: self.gutter_hovered,
2414 }
2415 }
2416
2417 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2418 self.buffer.read(cx).language_at(point, cx)
2419 }
2420
2421 pub fn file_at<T: ToOffset>(
2422 &self,
2423 point: T,
2424 cx: &AppContext,
2425 ) -> Option<Arc<dyn language::File>> {
2426 self.buffer.read(cx).read(cx).file_at(point).cloned()
2427 }
2428
2429 pub fn active_excerpt(
2430 &self,
2431 cx: &AppContext,
2432 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2433 self.buffer
2434 .read(cx)
2435 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2436 }
2437
2438 pub fn mode(&self) -> EditorMode {
2439 self.mode
2440 }
2441
2442 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2443 self.collaboration_hub.as_deref()
2444 }
2445
2446 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2447 self.collaboration_hub = Some(hub);
2448 }
2449
2450 pub fn set_custom_context_menu(
2451 &mut self,
2452 f: impl 'static
2453 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2454 ) {
2455 self.custom_context_menu = Some(Box::new(f))
2456 }
2457
2458 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2459 self.completion_provider = provider;
2460 }
2461
2462 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2463 self.semantics_provider.clone()
2464 }
2465
2466 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2467 self.semantics_provider = provider;
2468 }
2469
2470 pub fn set_inline_completion_provider<T>(
2471 &mut self,
2472 provider: Option<Model<T>>,
2473 cx: &mut ViewContext<Self>,
2474 ) where
2475 T: InlineCompletionProvider,
2476 {
2477 self.inline_completion_provider =
2478 provider.map(|provider| RegisteredInlineCompletionProvider {
2479 _subscription: cx.observe(&provider, |this, _, cx| {
2480 if this.focus_handle.is_focused(cx) {
2481 this.update_visible_inline_completion(cx);
2482 }
2483 }),
2484 provider: Arc::new(provider),
2485 });
2486 self.refresh_inline_completion(false, false, cx);
2487 }
2488
2489 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2490 self.placeholder_text.as_deref()
2491 }
2492
2493 pub fn set_placeholder_text(
2494 &mut self,
2495 placeholder_text: impl Into<Arc<str>>,
2496 cx: &mut ViewContext<Self>,
2497 ) {
2498 let placeholder_text = Some(placeholder_text.into());
2499 if self.placeholder_text != placeholder_text {
2500 self.placeholder_text = placeholder_text;
2501 cx.notify();
2502 }
2503 }
2504
2505 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2506 self.cursor_shape = cursor_shape;
2507
2508 // Disrupt blink for immediate user feedback that the cursor shape has changed
2509 self.blink_manager.update(cx, BlinkManager::show_cursor);
2510
2511 cx.notify();
2512 }
2513
2514 pub fn set_current_line_highlight(
2515 &mut self,
2516 current_line_highlight: Option<CurrentLineHighlight>,
2517 ) {
2518 self.current_line_highlight = current_line_highlight;
2519 }
2520
2521 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2522 self.collapse_matches = collapse_matches;
2523 }
2524
2525 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2526 if self.collapse_matches {
2527 return range.start..range.start;
2528 }
2529 range.clone()
2530 }
2531
2532 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2533 if self.display_map.read(cx).clip_at_line_ends != clip {
2534 self.display_map
2535 .update(cx, |map, _| map.clip_at_line_ends = clip);
2536 }
2537 }
2538
2539 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2540 self.input_enabled = input_enabled;
2541 }
2542
2543 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2544 self.enable_inline_completions = enabled;
2545 }
2546
2547 pub fn set_autoindent(&mut self, autoindent: bool) {
2548 if autoindent {
2549 self.autoindent_mode = Some(AutoindentMode::EachLine);
2550 } else {
2551 self.autoindent_mode = None;
2552 }
2553 }
2554
2555 pub fn read_only(&self, cx: &AppContext) -> bool {
2556 self.read_only || self.buffer.read(cx).read_only()
2557 }
2558
2559 pub fn set_read_only(&mut self, read_only: bool) {
2560 self.read_only = read_only;
2561 }
2562
2563 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2564 self.use_autoclose = autoclose;
2565 }
2566
2567 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2568 self.use_auto_surround = auto_surround;
2569 }
2570
2571 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2572 self.auto_replace_emoji_shortcode = auto_replace;
2573 }
2574
2575 pub fn toggle_inline_completions(
2576 &mut self,
2577 _: &ToggleInlineCompletions,
2578 cx: &mut ViewContext<Self>,
2579 ) {
2580 if self.show_inline_completions_override.is_some() {
2581 self.set_show_inline_completions(None, cx);
2582 } else {
2583 let cursor = self.selections.newest_anchor().head();
2584 if let Some((buffer, cursor_buffer_position)) =
2585 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2586 {
2587 let show_inline_completions =
2588 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2589 self.set_show_inline_completions(Some(show_inline_completions), cx);
2590 }
2591 }
2592 }
2593
2594 pub fn set_show_inline_completions(
2595 &mut self,
2596 show_inline_completions: Option<bool>,
2597 cx: &mut ViewContext<Self>,
2598 ) {
2599 self.show_inline_completions_override = show_inline_completions;
2600 self.refresh_inline_completion(false, true, cx);
2601 }
2602
2603 fn should_show_inline_completions(
2604 &self,
2605 buffer: &Model<Buffer>,
2606 buffer_position: language::Anchor,
2607 cx: &AppContext,
2608 ) -> bool {
2609 if !self.snippet_stack.is_empty() {
2610 return false;
2611 }
2612
2613 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
2614 return false;
2615 }
2616
2617 if let Some(provider) = self.inline_completion_provider() {
2618 if let Some(show_inline_completions) = self.show_inline_completions_override {
2619 show_inline_completions
2620 } else {
2621 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2622 }
2623 } else {
2624 false
2625 }
2626 }
2627
2628 fn inline_completions_disabled_in_scope(
2629 &self,
2630 buffer: &Model<Buffer>,
2631 buffer_position: language::Anchor,
2632 cx: &AppContext,
2633 ) -> bool {
2634 let snapshot = buffer.read(cx).snapshot();
2635 let settings = snapshot.settings_at(buffer_position, cx);
2636
2637 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
2638 return false;
2639 };
2640
2641 scope.override_name().map_or(false, |scope_name| {
2642 settings
2643 .inline_completions_disabled_in
2644 .iter()
2645 .any(|s| s == scope_name)
2646 })
2647 }
2648
2649 pub fn set_use_modal_editing(&mut self, to: bool) {
2650 self.use_modal_editing = to;
2651 }
2652
2653 pub fn use_modal_editing(&self) -> bool {
2654 self.use_modal_editing
2655 }
2656
2657 fn selections_did_change(
2658 &mut self,
2659 local: bool,
2660 old_cursor_position: &Anchor,
2661 show_completions: bool,
2662 cx: &mut ViewContext<Self>,
2663 ) {
2664 cx.invalidate_character_coordinates();
2665
2666 // Copy selections to primary selection buffer
2667 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2668 if local {
2669 let selections = self.selections.all::<usize>(cx);
2670 let buffer_handle = self.buffer.read(cx).read(cx);
2671
2672 let mut text = String::new();
2673 for (index, selection) in selections.iter().enumerate() {
2674 let text_for_selection = buffer_handle
2675 .text_for_range(selection.start..selection.end)
2676 .collect::<String>();
2677
2678 text.push_str(&text_for_selection);
2679 if index != selections.len() - 1 {
2680 text.push('\n');
2681 }
2682 }
2683
2684 if !text.is_empty() {
2685 cx.write_to_primary(ClipboardItem::new_string(text));
2686 }
2687 }
2688
2689 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2690 self.buffer.update(cx, |buffer, cx| {
2691 buffer.set_active_selections(
2692 &self.selections.disjoint_anchors(),
2693 self.selections.line_mode,
2694 self.cursor_shape,
2695 cx,
2696 )
2697 });
2698 }
2699 let display_map = self
2700 .display_map
2701 .update(cx, |display_map, cx| display_map.snapshot(cx));
2702 let buffer = &display_map.buffer_snapshot;
2703 self.add_selections_state = None;
2704 self.select_next_state = None;
2705 self.select_prev_state = None;
2706 self.select_larger_syntax_node_stack.clear();
2707 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2708 self.snippet_stack
2709 .invalidate(&self.selections.disjoint_anchors(), buffer);
2710 self.take_rename(false, cx);
2711
2712 let new_cursor_position = self.selections.newest_anchor().head();
2713
2714 self.push_to_nav_history(
2715 *old_cursor_position,
2716 Some(new_cursor_position.to_point(buffer)),
2717 cx,
2718 );
2719
2720 if local {
2721 let new_cursor_position = self.selections.newest_anchor().head();
2722 let mut context_menu = self.context_menu.write();
2723 let completion_menu = match context_menu.as_ref() {
2724 Some(ContextMenu::Completions(menu)) => Some(menu),
2725
2726 _ => {
2727 *context_menu = None;
2728 None
2729 }
2730 };
2731
2732 if let Some(completion_menu) = completion_menu {
2733 let cursor_position = new_cursor_position.to_offset(buffer);
2734 let (word_range, kind) =
2735 buffer.surrounding_word(completion_menu.initial_position, true);
2736 if kind == Some(CharKind::Word)
2737 && word_range.to_inclusive().contains(&cursor_position)
2738 {
2739 let mut completion_menu = completion_menu.clone();
2740 drop(context_menu);
2741
2742 let query = Self::completion_query(buffer, cursor_position);
2743 cx.spawn(move |this, mut cx| async move {
2744 completion_menu
2745 .filter(query.as_deref(), cx.background_executor().clone())
2746 .await;
2747
2748 this.update(&mut cx, |this, cx| {
2749 let mut context_menu = this.context_menu.write();
2750 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2751 return;
2752 };
2753
2754 if menu.id > completion_menu.id {
2755 return;
2756 }
2757
2758 *context_menu = Some(ContextMenu::Completions(completion_menu));
2759 drop(context_menu);
2760 cx.notify();
2761 })
2762 })
2763 .detach();
2764
2765 if show_completions {
2766 self.show_completions(&ShowCompletions { trigger: None }, cx);
2767 }
2768 } else {
2769 drop(context_menu);
2770 self.hide_context_menu(cx);
2771 }
2772 } else {
2773 drop(context_menu);
2774 }
2775
2776 hide_hover(self, cx);
2777
2778 if old_cursor_position.to_display_point(&display_map).row()
2779 != new_cursor_position.to_display_point(&display_map).row()
2780 {
2781 self.available_code_actions.take();
2782 }
2783 self.refresh_code_actions(cx);
2784 self.refresh_document_highlights(cx);
2785 refresh_matching_bracket_highlights(self, cx);
2786 self.discard_inline_completion(false, cx);
2787 linked_editing_ranges::refresh_linked_ranges(self, cx);
2788 if self.git_blame_inline_enabled {
2789 self.start_inline_blame_timer(cx);
2790 }
2791 }
2792
2793 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2794 cx.emit(EditorEvent::SelectionsChanged { local });
2795
2796 if self.selections.disjoint_anchors().len() == 1 {
2797 cx.emit(SearchEvent::ActiveMatchChanged)
2798 }
2799 cx.notify();
2800 }
2801
2802 pub fn change_selections<R>(
2803 &mut self,
2804 autoscroll: Option<Autoscroll>,
2805 cx: &mut ViewContext<Self>,
2806 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2807 ) -> R {
2808 self.change_selections_inner(autoscroll, true, cx, change)
2809 }
2810
2811 pub fn change_selections_inner<R>(
2812 &mut self,
2813 autoscroll: Option<Autoscroll>,
2814 request_completions: bool,
2815 cx: &mut ViewContext<Self>,
2816 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2817 ) -> R {
2818 let old_cursor_position = self.selections.newest_anchor().head();
2819 self.push_to_selection_history();
2820
2821 let (changed, result) = self.selections.change_with(cx, change);
2822
2823 if changed {
2824 if let Some(autoscroll) = autoscroll {
2825 self.request_autoscroll(autoscroll, cx);
2826 }
2827 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2828
2829 if self.should_open_signature_help_automatically(
2830 &old_cursor_position,
2831 self.signature_help_state.backspace_pressed(),
2832 cx,
2833 ) {
2834 self.show_signature_help(&ShowSignatureHelp, cx);
2835 }
2836 self.signature_help_state.set_backspace_pressed(false);
2837 }
2838
2839 result
2840 }
2841
2842 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2843 where
2844 I: IntoIterator<Item = (Range<S>, T)>,
2845 S: ToOffset,
2846 T: Into<Arc<str>>,
2847 {
2848 if self.read_only(cx) {
2849 return;
2850 }
2851
2852 self.buffer
2853 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2854 }
2855
2856 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2857 where
2858 I: IntoIterator<Item = (Range<S>, T)>,
2859 S: ToOffset,
2860 T: Into<Arc<str>>,
2861 {
2862 if self.read_only(cx) {
2863 return;
2864 }
2865
2866 self.buffer.update(cx, |buffer, cx| {
2867 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2868 });
2869 }
2870
2871 pub fn edit_with_block_indent<I, S, T>(
2872 &mut self,
2873 edits: I,
2874 original_indent_columns: Vec<u32>,
2875 cx: &mut ViewContext<Self>,
2876 ) where
2877 I: IntoIterator<Item = (Range<S>, T)>,
2878 S: ToOffset,
2879 T: Into<Arc<str>>,
2880 {
2881 if self.read_only(cx) {
2882 return;
2883 }
2884
2885 self.buffer.update(cx, |buffer, cx| {
2886 buffer.edit(
2887 edits,
2888 Some(AutoindentMode::Block {
2889 original_indent_columns,
2890 }),
2891 cx,
2892 )
2893 });
2894 }
2895
2896 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2897 self.hide_context_menu(cx);
2898
2899 match phase {
2900 SelectPhase::Begin {
2901 position,
2902 add,
2903 click_count,
2904 } => self.begin_selection(position, add, click_count, cx),
2905 SelectPhase::BeginColumnar {
2906 position,
2907 goal_column,
2908 reset,
2909 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2910 SelectPhase::Extend {
2911 position,
2912 click_count,
2913 } => self.extend_selection(position, click_count, cx),
2914 SelectPhase::Update {
2915 position,
2916 goal_column,
2917 scroll_delta,
2918 } => self.update_selection(position, goal_column, scroll_delta, cx),
2919 SelectPhase::End => self.end_selection(cx),
2920 }
2921 }
2922
2923 fn extend_selection(
2924 &mut self,
2925 position: DisplayPoint,
2926 click_count: usize,
2927 cx: &mut ViewContext<Self>,
2928 ) {
2929 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2930 let tail = self.selections.newest::<usize>(cx).tail();
2931 self.begin_selection(position, false, click_count, cx);
2932
2933 let position = position.to_offset(&display_map, Bias::Left);
2934 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2935
2936 let mut pending_selection = self
2937 .selections
2938 .pending_anchor()
2939 .expect("extend_selection not called with pending selection");
2940 if position >= tail {
2941 pending_selection.start = tail_anchor;
2942 } else {
2943 pending_selection.end = tail_anchor;
2944 pending_selection.reversed = true;
2945 }
2946
2947 let mut pending_mode = self.selections.pending_mode().unwrap();
2948 match &mut pending_mode {
2949 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2950 _ => {}
2951 }
2952
2953 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2954 s.set_pending(pending_selection, pending_mode)
2955 });
2956 }
2957
2958 fn begin_selection(
2959 &mut self,
2960 position: DisplayPoint,
2961 add: bool,
2962 click_count: usize,
2963 cx: &mut ViewContext<Self>,
2964 ) {
2965 if !self.focus_handle.is_focused(cx) {
2966 self.last_focused_descendant = None;
2967 cx.focus(&self.focus_handle);
2968 }
2969
2970 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2971 let buffer = &display_map.buffer_snapshot;
2972 let newest_selection = self.selections.newest_anchor().clone();
2973 let position = display_map.clip_point(position, Bias::Left);
2974
2975 let start;
2976 let end;
2977 let mode;
2978 let auto_scroll;
2979 match click_count {
2980 1 => {
2981 start = buffer.anchor_before(position.to_point(&display_map));
2982 end = start;
2983 mode = SelectMode::Character;
2984 auto_scroll = true;
2985 }
2986 2 => {
2987 let range = movement::surrounding_word(&display_map, position);
2988 start = buffer.anchor_before(range.start.to_point(&display_map));
2989 end = buffer.anchor_before(range.end.to_point(&display_map));
2990 mode = SelectMode::Word(start..end);
2991 auto_scroll = true;
2992 }
2993 3 => {
2994 let position = display_map
2995 .clip_point(position, Bias::Left)
2996 .to_point(&display_map);
2997 let line_start = display_map.prev_line_boundary(position).0;
2998 let next_line_start = buffer.clip_point(
2999 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3000 Bias::Left,
3001 );
3002 start = buffer.anchor_before(line_start);
3003 end = buffer.anchor_before(next_line_start);
3004 mode = SelectMode::Line(start..end);
3005 auto_scroll = true;
3006 }
3007 _ => {
3008 start = buffer.anchor_before(0);
3009 end = buffer.anchor_before(buffer.len());
3010 mode = SelectMode::All;
3011 auto_scroll = false;
3012 }
3013 }
3014
3015 let point_to_delete: Option<usize> = {
3016 let selected_points: Vec<Selection<Point>> =
3017 self.selections.disjoint_in_range(start..end, cx);
3018
3019 if !add || click_count > 1 {
3020 None
3021 } else if !selected_points.is_empty() {
3022 Some(selected_points[0].id)
3023 } else {
3024 let clicked_point_already_selected =
3025 self.selections.disjoint.iter().find(|selection| {
3026 selection.start.to_point(buffer) == start.to_point(buffer)
3027 || selection.end.to_point(buffer) == end.to_point(buffer)
3028 });
3029
3030 clicked_point_already_selected.map(|selection| selection.id)
3031 }
3032 };
3033
3034 let selections_count = self.selections.count();
3035
3036 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
3037 if let Some(point_to_delete) = point_to_delete {
3038 s.delete(point_to_delete);
3039
3040 if selections_count == 1 {
3041 s.set_pending_anchor_range(start..end, mode);
3042 }
3043 } else {
3044 if !add {
3045 s.clear_disjoint();
3046 } else if click_count > 1 {
3047 s.delete(newest_selection.id)
3048 }
3049
3050 s.set_pending_anchor_range(start..end, mode);
3051 }
3052 });
3053 }
3054
3055 fn begin_columnar_selection(
3056 &mut self,
3057 position: DisplayPoint,
3058 goal_column: u32,
3059 reset: bool,
3060 cx: &mut ViewContext<Self>,
3061 ) {
3062 if !self.focus_handle.is_focused(cx) {
3063 self.last_focused_descendant = None;
3064 cx.focus(&self.focus_handle);
3065 }
3066
3067 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3068
3069 if reset {
3070 let pointer_position = display_map
3071 .buffer_snapshot
3072 .anchor_before(position.to_point(&display_map));
3073
3074 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
3075 s.clear_disjoint();
3076 s.set_pending_anchor_range(
3077 pointer_position..pointer_position,
3078 SelectMode::Character,
3079 );
3080 });
3081 }
3082
3083 let tail = self.selections.newest::<Point>(cx).tail();
3084 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
3085
3086 if !reset {
3087 self.select_columns(
3088 tail.to_display_point(&display_map),
3089 position,
3090 goal_column,
3091 &display_map,
3092 cx,
3093 );
3094 }
3095 }
3096
3097 fn update_selection(
3098 &mut self,
3099 position: DisplayPoint,
3100 goal_column: u32,
3101 scroll_delta: gpui::Point<f32>,
3102 cx: &mut ViewContext<Self>,
3103 ) {
3104 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3105
3106 if let Some(tail) = self.columnar_selection_tail.as_ref() {
3107 let tail = tail.to_display_point(&display_map);
3108 self.select_columns(tail, position, goal_column, &display_map, cx);
3109 } else if let Some(mut pending) = self.selections.pending_anchor() {
3110 let buffer = self.buffer.read(cx).snapshot(cx);
3111 let head;
3112 let tail;
3113 let mode = self.selections.pending_mode().unwrap();
3114 match &mode {
3115 SelectMode::Character => {
3116 head = position.to_point(&display_map);
3117 tail = pending.tail().to_point(&buffer);
3118 }
3119 SelectMode::Word(original_range) => {
3120 let original_display_range = original_range.start.to_display_point(&display_map)
3121 ..original_range.end.to_display_point(&display_map);
3122 let original_buffer_range = original_display_range.start.to_point(&display_map)
3123 ..original_display_range.end.to_point(&display_map);
3124 if movement::is_inside_word(&display_map, position)
3125 || original_display_range.contains(&position)
3126 {
3127 let word_range = movement::surrounding_word(&display_map, position);
3128 if word_range.start < original_display_range.start {
3129 head = word_range.start.to_point(&display_map);
3130 } else {
3131 head = word_range.end.to_point(&display_map);
3132 }
3133 } else {
3134 head = position.to_point(&display_map);
3135 }
3136
3137 if head <= original_buffer_range.start {
3138 tail = original_buffer_range.end;
3139 } else {
3140 tail = original_buffer_range.start;
3141 }
3142 }
3143 SelectMode::Line(original_range) => {
3144 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3145
3146 let position = display_map
3147 .clip_point(position, Bias::Left)
3148 .to_point(&display_map);
3149 let line_start = display_map.prev_line_boundary(position).0;
3150 let next_line_start = buffer.clip_point(
3151 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3152 Bias::Left,
3153 );
3154
3155 if line_start < original_range.start {
3156 head = line_start
3157 } else {
3158 head = next_line_start
3159 }
3160
3161 if head <= original_range.start {
3162 tail = original_range.end;
3163 } else {
3164 tail = original_range.start;
3165 }
3166 }
3167 SelectMode::All => {
3168 return;
3169 }
3170 };
3171
3172 if head < tail {
3173 pending.start = buffer.anchor_before(head);
3174 pending.end = buffer.anchor_before(tail);
3175 pending.reversed = true;
3176 } else {
3177 pending.start = buffer.anchor_before(tail);
3178 pending.end = buffer.anchor_before(head);
3179 pending.reversed = false;
3180 }
3181
3182 self.change_selections(None, cx, |s| {
3183 s.set_pending(pending, mode);
3184 });
3185 } else {
3186 log::error!("update_selection dispatched with no pending selection");
3187 return;
3188 }
3189
3190 self.apply_scroll_delta(scroll_delta, cx);
3191 cx.notify();
3192 }
3193
3194 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3195 self.columnar_selection_tail.take();
3196 if self.selections.pending_anchor().is_some() {
3197 let selections = self.selections.all::<usize>(cx);
3198 self.change_selections(None, cx, |s| {
3199 s.select(selections);
3200 s.clear_pending();
3201 });
3202 }
3203 }
3204
3205 fn select_columns(
3206 &mut self,
3207 tail: DisplayPoint,
3208 head: DisplayPoint,
3209 goal_column: u32,
3210 display_map: &DisplaySnapshot,
3211 cx: &mut ViewContext<Self>,
3212 ) {
3213 let start_row = cmp::min(tail.row(), head.row());
3214 let end_row = cmp::max(tail.row(), head.row());
3215 let start_column = cmp::min(tail.column(), goal_column);
3216 let end_column = cmp::max(tail.column(), goal_column);
3217 let reversed = start_column < tail.column();
3218
3219 let selection_ranges = (start_row.0..=end_row.0)
3220 .map(DisplayRow)
3221 .filter_map(|row| {
3222 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3223 let start = display_map
3224 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3225 .to_point(display_map);
3226 let end = display_map
3227 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3228 .to_point(display_map);
3229 if reversed {
3230 Some(end..start)
3231 } else {
3232 Some(start..end)
3233 }
3234 } else {
3235 None
3236 }
3237 })
3238 .collect::<Vec<_>>();
3239
3240 self.change_selections(None, cx, |s| {
3241 s.select_ranges(selection_ranges);
3242 });
3243 cx.notify();
3244 }
3245
3246 pub fn has_pending_nonempty_selection(&self) -> bool {
3247 let pending_nonempty_selection = match self.selections.pending_anchor() {
3248 Some(Selection { start, end, .. }) => start != end,
3249 None => false,
3250 };
3251
3252 pending_nonempty_selection
3253 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3254 }
3255
3256 pub fn has_pending_selection(&self) -> bool {
3257 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3258 }
3259
3260 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3261 if self.clear_expanded_diff_hunks(cx) {
3262 cx.notify();
3263 return;
3264 }
3265 if self.dismiss_menus_and_popups(true, cx) {
3266 return;
3267 }
3268
3269 if self.mode == EditorMode::Full
3270 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3271 {
3272 return;
3273 }
3274
3275 cx.propagate();
3276 }
3277
3278 pub fn dismiss_menus_and_popups(
3279 &mut self,
3280 should_report_inline_completion_event: bool,
3281 cx: &mut ViewContext<Self>,
3282 ) -> bool {
3283 if self.take_rename(false, cx).is_some() {
3284 return true;
3285 }
3286
3287 if hide_hover(self, cx) {
3288 return true;
3289 }
3290
3291 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3292 return true;
3293 }
3294
3295 if self.hide_context_menu(cx).is_some() {
3296 return true;
3297 }
3298
3299 if self.mouse_context_menu.take().is_some() {
3300 return true;
3301 }
3302
3303 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3304 return true;
3305 }
3306
3307 if self.snippet_stack.pop().is_some() {
3308 return true;
3309 }
3310
3311 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3312 self.dismiss_diagnostics(cx);
3313 return true;
3314 }
3315
3316 false
3317 }
3318
3319 fn linked_editing_ranges_for(
3320 &self,
3321 selection: Range<text::Anchor>,
3322 cx: &AppContext,
3323 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3324 if self.linked_edit_ranges.is_empty() {
3325 return None;
3326 }
3327 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3328 selection.end.buffer_id.and_then(|end_buffer_id| {
3329 if selection.start.buffer_id != Some(end_buffer_id) {
3330 return None;
3331 }
3332 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3333 let snapshot = buffer.read(cx).snapshot();
3334 self.linked_edit_ranges
3335 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3336 .map(|ranges| (ranges, snapshot, buffer))
3337 })?;
3338 use text::ToOffset as TO;
3339 // find offset from the start of current range to current cursor position
3340 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3341
3342 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3343 let start_difference = start_offset - start_byte_offset;
3344 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3345 let end_difference = end_offset - start_byte_offset;
3346 // Current range has associated linked ranges.
3347 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3348 for range in linked_ranges.iter() {
3349 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3350 let end_offset = start_offset + end_difference;
3351 let start_offset = start_offset + start_difference;
3352 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3353 continue;
3354 }
3355 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3356 if s.start.buffer_id != selection.start.buffer_id
3357 || s.end.buffer_id != selection.end.buffer_id
3358 {
3359 return false;
3360 }
3361 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3362 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3363 }) {
3364 continue;
3365 }
3366 let start = buffer_snapshot.anchor_after(start_offset);
3367 let end = buffer_snapshot.anchor_after(end_offset);
3368 linked_edits
3369 .entry(buffer.clone())
3370 .or_default()
3371 .push(start..end);
3372 }
3373 Some(linked_edits)
3374 }
3375
3376 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3377 let text: Arc<str> = text.into();
3378
3379 if self.read_only(cx) {
3380 return;
3381 }
3382
3383 let selections = self.selections.all_adjusted(cx);
3384 let mut bracket_inserted = false;
3385 let mut edits = Vec::new();
3386 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3387 let mut new_selections = Vec::with_capacity(selections.len());
3388 let mut new_autoclose_regions = Vec::new();
3389 let snapshot = self.buffer.read(cx).read(cx);
3390
3391 for (selection, autoclose_region) in
3392 self.selections_with_autoclose_regions(selections, &snapshot)
3393 {
3394 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3395 // Determine if the inserted text matches the opening or closing
3396 // bracket of any of this language's bracket pairs.
3397 let mut bracket_pair = None;
3398 let mut is_bracket_pair_start = false;
3399 let mut is_bracket_pair_end = false;
3400 if !text.is_empty() {
3401 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3402 // and they are removing the character that triggered IME popup.
3403 for (pair, enabled) in scope.brackets() {
3404 if !pair.close && !pair.surround {
3405 continue;
3406 }
3407
3408 if enabled && pair.start.ends_with(text.as_ref()) {
3409 let prefix_len = pair.start.len() - text.len();
3410 let preceding_text_matches_prefix = prefix_len == 0
3411 || (selection.start.column >= (prefix_len as u32)
3412 && snapshot.contains_str_at(
3413 Point::new(
3414 selection.start.row,
3415 selection.start.column - (prefix_len as u32),
3416 ),
3417 &pair.start[..prefix_len],
3418 ));
3419 if preceding_text_matches_prefix {
3420 bracket_pair = Some(pair.clone());
3421 is_bracket_pair_start = true;
3422 break;
3423 }
3424 }
3425 if pair.end.as_str() == text.as_ref() {
3426 bracket_pair = Some(pair.clone());
3427 is_bracket_pair_end = true;
3428 break;
3429 }
3430 }
3431 }
3432
3433 if let Some(bracket_pair) = bracket_pair {
3434 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3435 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3436 let auto_surround =
3437 self.use_auto_surround && snapshot_settings.use_auto_surround;
3438 if selection.is_empty() {
3439 if is_bracket_pair_start {
3440 // If the inserted text is a suffix of an opening bracket and the
3441 // selection is preceded by the rest of the opening bracket, then
3442 // insert the closing bracket.
3443 let following_text_allows_autoclose = snapshot
3444 .chars_at(selection.start)
3445 .next()
3446 .map_or(true, |c| scope.should_autoclose_before(c));
3447
3448 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3449 && bracket_pair.start.len() == 1
3450 {
3451 let target = bracket_pair.start.chars().next().unwrap();
3452 let current_line_count = snapshot
3453 .reversed_chars_at(selection.start)
3454 .take_while(|&c| c != '\n')
3455 .filter(|&c| c == target)
3456 .count();
3457 current_line_count % 2 == 1
3458 } else {
3459 false
3460 };
3461
3462 if autoclose
3463 && bracket_pair.close
3464 && following_text_allows_autoclose
3465 && !is_closing_quote
3466 {
3467 let anchor = snapshot.anchor_before(selection.end);
3468 new_selections.push((selection.map(|_| anchor), text.len()));
3469 new_autoclose_regions.push((
3470 anchor,
3471 text.len(),
3472 selection.id,
3473 bracket_pair.clone(),
3474 ));
3475 edits.push((
3476 selection.range(),
3477 format!("{}{}", text, bracket_pair.end).into(),
3478 ));
3479 bracket_inserted = true;
3480 continue;
3481 }
3482 }
3483
3484 if let Some(region) = autoclose_region {
3485 // If the selection is followed by an auto-inserted closing bracket,
3486 // then don't insert that closing bracket again; just move the selection
3487 // past the closing bracket.
3488 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3489 && text.as_ref() == region.pair.end.as_str();
3490 if should_skip {
3491 let anchor = snapshot.anchor_after(selection.end);
3492 new_selections
3493 .push((selection.map(|_| anchor), region.pair.end.len()));
3494 continue;
3495 }
3496 }
3497
3498 let always_treat_brackets_as_autoclosed = snapshot
3499 .settings_at(selection.start, cx)
3500 .always_treat_brackets_as_autoclosed;
3501 if always_treat_brackets_as_autoclosed
3502 && is_bracket_pair_end
3503 && snapshot.contains_str_at(selection.end, text.as_ref())
3504 {
3505 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3506 // and the inserted text is a closing bracket and the selection is followed
3507 // by the closing bracket then move the selection past the closing bracket.
3508 let anchor = snapshot.anchor_after(selection.end);
3509 new_selections.push((selection.map(|_| anchor), text.len()));
3510 continue;
3511 }
3512 }
3513 // If an opening bracket is 1 character long and is typed while
3514 // text is selected, then surround that text with the bracket pair.
3515 else if auto_surround
3516 && bracket_pair.surround
3517 && is_bracket_pair_start
3518 && bracket_pair.start.chars().count() == 1
3519 {
3520 edits.push((selection.start..selection.start, text.clone()));
3521 edits.push((
3522 selection.end..selection.end,
3523 bracket_pair.end.as_str().into(),
3524 ));
3525 bracket_inserted = true;
3526 new_selections.push((
3527 Selection {
3528 id: selection.id,
3529 start: snapshot.anchor_after(selection.start),
3530 end: snapshot.anchor_before(selection.end),
3531 reversed: selection.reversed,
3532 goal: selection.goal,
3533 },
3534 0,
3535 ));
3536 continue;
3537 }
3538 }
3539 }
3540
3541 if self.auto_replace_emoji_shortcode
3542 && selection.is_empty()
3543 && text.as_ref().ends_with(':')
3544 {
3545 if let Some(possible_emoji_short_code) =
3546 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3547 {
3548 if !possible_emoji_short_code.is_empty() {
3549 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3550 let emoji_shortcode_start = Point::new(
3551 selection.start.row,
3552 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3553 );
3554
3555 // Remove shortcode from buffer
3556 edits.push((
3557 emoji_shortcode_start..selection.start,
3558 "".to_string().into(),
3559 ));
3560 new_selections.push((
3561 Selection {
3562 id: selection.id,
3563 start: snapshot.anchor_after(emoji_shortcode_start),
3564 end: snapshot.anchor_before(selection.start),
3565 reversed: selection.reversed,
3566 goal: selection.goal,
3567 },
3568 0,
3569 ));
3570
3571 // Insert emoji
3572 let selection_start_anchor = snapshot.anchor_after(selection.start);
3573 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3574 edits.push((selection.start..selection.end, emoji.to_string().into()));
3575
3576 continue;
3577 }
3578 }
3579 }
3580 }
3581
3582 // If not handling any auto-close operation, then just replace the selected
3583 // text with the given input and move the selection to the end of the
3584 // newly inserted text.
3585 let anchor = snapshot.anchor_after(selection.end);
3586 if !self.linked_edit_ranges.is_empty() {
3587 let start_anchor = snapshot.anchor_before(selection.start);
3588
3589 let is_word_char = text.chars().next().map_or(true, |char| {
3590 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3591 classifier.is_word(char)
3592 });
3593
3594 if is_word_char {
3595 if let Some(ranges) = self
3596 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3597 {
3598 for (buffer, edits) in ranges {
3599 linked_edits
3600 .entry(buffer.clone())
3601 .or_default()
3602 .extend(edits.into_iter().map(|range| (range, text.clone())));
3603 }
3604 }
3605 }
3606 }
3607
3608 new_selections.push((selection.map(|_| anchor), 0));
3609 edits.push((selection.start..selection.end, text.clone()));
3610 }
3611
3612 drop(snapshot);
3613
3614 self.transact(cx, |this, cx| {
3615 this.buffer.update(cx, |buffer, cx| {
3616 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3617 });
3618 for (buffer, edits) in linked_edits {
3619 buffer.update(cx, |buffer, cx| {
3620 let snapshot = buffer.snapshot();
3621 let edits = edits
3622 .into_iter()
3623 .map(|(range, text)| {
3624 use text::ToPoint as TP;
3625 let end_point = TP::to_point(&range.end, &snapshot);
3626 let start_point = TP::to_point(&range.start, &snapshot);
3627 (start_point..end_point, text)
3628 })
3629 .sorted_by_key(|(range, _)| range.start)
3630 .collect::<Vec<_>>();
3631 buffer.edit(edits, None, cx);
3632 })
3633 }
3634 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3635 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3636 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3637 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3638 .zip(new_selection_deltas)
3639 .map(|(selection, delta)| Selection {
3640 id: selection.id,
3641 start: selection.start + delta,
3642 end: selection.end + delta,
3643 reversed: selection.reversed,
3644 goal: SelectionGoal::None,
3645 })
3646 .collect::<Vec<_>>();
3647
3648 let mut i = 0;
3649 for (position, delta, selection_id, pair) in new_autoclose_regions {
3650 let position = position.to_offset(&map.buffer_snapshot) + delta;
3651 let start = map.buffer_snapshot.anchor_before(position);
3652 let end = map.buffer_snapshot.anchor_after(position);
3653 while let Some(existing_state) = this.autoclose_regions.get(i) {
3654 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3655 Ordering::Less => i += 1,
3656 Ordering::Greater => break,
3657 Ordering::Equal => {
3658 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3659 Ordering::Less => i += 1,
3660 Ordering::Equal => break,
3661 Ordering::Greater => break,
3662 }
3663 }
3664 }
3665 }
3666 this.autoclose_regions.insert(
3667 i,
3668 AutocloseRegion {
3669 selection_id,
3670 range: start..end,
3671 pair,
3672 },
3673 );
3674 }
3675
3676 let had_active_inline_completion = this.has_active_inline_completion(cx);
3677 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3678 s.select(new_selections)
3679 });
3680
3681 if !bracket_inserted {
3682 if let Some(on_type_format_task) =
3683 this.trigger_on_type_formatting(text.to_string(), cx)
3684 {
3685 on_type_format_task.detach_and_log_err(cx);
3686 }
3687 }
3688
3689 let editor_settings = EditorSettings::get_global(cx);
3690 if bracket_inserted
3691 && (editor_settings.auto_signature_help
3692 || editor_settings.show_signature_help_after_edits)
3693 {
3694 this.show_signature_help(&ShowSignatureHelp, cx);
3695 }
3696
3697 let trigger_in_words = !had_active_inline_completion;
3698 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3699 linked_editing_ranges::refresh_linked_ranges(this, cx);
3700 this.refresh_inline_completion(true, false, cx);
3701 });
3702 }
3703
3704 fn find_possible_emoji_shortcode_at_position(
3705 snapshot: &MultiBufferSnapshot,
3706 position: Point,
3707 ) -> Option<String> {
3708 let mut chars = Vec::new();
3709 let mut found_colon = false;
3710 for char in snapshot.reversed_chars_at(position).take(100) {
3711 // Found a possible emoji shortcode in the middle of the buffer
3712 if found_colon {
3713 if char.is_whitespace() {
3714 chars.reverse();
3715 return Some(chars.iter().collect());
3716 }
3717 // If the previous character is not a whitespace, we are in the middle of a word
3718 // and we only want to complete the shortcode if the word is made up of other emojis
3719 let mut containing_word = String::new();
3720 for ch in snapshot
3721 .reversed_chars_at(position)
3722 .skip(chars.len() + 1)
3723 .take(100)
3724 {
3725 if ch.is_whitespace() {
3726 break;
3727 }
3728 containing_word.push(ch);
3729 }
3730 let containing_word = containing_word.chars().rev().collect::<String>();
3731 if util::word_consists_of_emojis(containing_word.as_str()) {
3732 chars.reverse();
3733 return Some(chars.iter().collect());
3734 }
3735 }
3736
3737 if char.is_whitespace() || !char.is_ascii() {
3738 return None;
3739 }
3740 if char == ':' {
3741 found_colon = true;
3742 } else {
3743 chars.push(char);
3744 }
3745 }
3746 // Found a possible emoji shortcode at the beginning of the buffer
3747 chars.reverse();
3748 Some(chars.iter().collect())
3749 }
3750
3751 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3752 self.transact(cx, |this, cx| {
3753 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3754 let selections = this.selections.all::<usize>(cx);
3755 let multi_buffer = this.buffer.read(cx);
3756 let buffer = multi_buffer.snapshot(cx);
3757 selections
3758 .iter()
3759 .map(|selection| {
3760 let start_point = selection.start.to_point(&buffer);
3761 let mut indent =
3762 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3763 indent.len = cmp::min(indent.len, start_point.column);
3764 let start = selection.start;
3765 let end = selection.end;
3766 let selection_is_empty = start == end;
3767 let language_scope = buffer.language_scope_at(start);
3768 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3769 &language_scope
3770 {
3771 let leading_whitespace_len = buffer
3772 .reversed_chars_at(start)
3773 .take_while(|c| c.is_whitespace() && *c != '\n')
3774 .map(|c| c.len_utf8())
3775 .sum::<usize>();
3776
3777 let trailing_whitespace_len = buffer
3778 .chars_at(end)
3779 .take_while(|c| c.is_whitespace() && *c != '\n')
3780 .map(|c| c.len_utf8())
3781 .sum::<usize>();
3782
3783 let insert_extra_newline =
3784 language.brackets().any(|(pair, enabled)| {
3785 let pair_start = pair.start.trim_end();
3786 let pair_end = pair.end.trim_start();
3787
3788 enabled
3789 && pair.newline
3790 && buffer.contains_str_at(
3791 end + trailing_whitespace_len,
3792 pair_end,
3793 )
3794 && buffer.contains_str_at(
3795 (start - leading_whitespace_len)
3796 .saturating_sub(pair_start.len()),
3797 pair_start,
3798 )
3799 });
3800
3801 // Comment extension on newline is allowed only for cursor selections
3802 let comment_delimiter = maybe!({
3803 if !selection_is_empty {
3804 return None;
3805 }
3806
3807 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3808 return None;
3809 }
3810
3811 let delimiters = language.line_comment_prefixes();
3812 let max_len_of_delimiter =
3813 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3814 let (snapshot, range) =
3815 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3816
3817 let mut index_of_first_non_whitespace = 0;
3818 let comment_candidate = snapshot
3819 .chars_for_range(range)
3820 .skip_while(|c| {
3821 let should_skip = c.is_whitespace();
3822 if should_skip {
3823 index_of_first_non_whitespace += 1;
3824 }
3825 should_skip
3826 })
3827 .take(max_len_of_delimiter)
3828 .collect::<String>();
3829 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3830 comment_candidate.starts_with(comment_prefix.as_ref())
3831 })?;
3832 let cursor_is_placed_after_comment_marker =
3833 index_of_first_non_whitespace + comment_prefix.len()
3834 <= start_point.column as usize;
3835 if cursor_is_placed_after_comment_marker {
3836 Some(comment_prefix.clone())
3837 } else {
3838 None
3839 }
3840 });
3841 (comment_delimiter, insert_extra_newline)
3842 } else {
3843 (None, false)
3844 };
3845
3846 let capacity_for_delimiter = comment_delimiter
3847 .as_deref()
3848 .map(str::len)
3849 .unwrap_or_default();
3850 let mut new_text =
3851 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3852 new_text.push('\n');
3853 new_text.extend(indent.chars());
3854 if let Some(delimiter) = &comment_delimiter {
3855 new_text.push_str(delimiter);
3856 }
3857 if insert_extra_newline {
3858 new_text = new_text.repeat(2);
3859 }
3860
3861 let anchor = buffer.anchor_after(end);
3862 let new_selection = selection.map(|_| anchor);
3863 (
3864 (start..end, new_text),
3865 (insert_extra_newline, new_selection),
3866 )
3867 })
3868 .unzip()
3869 };
3870
3871 this.edit_with_autoindent(edits, cx);
3872 let buffer = this.buffer.read(cx).snapshot(cx);
3873 let new_selections = selection_fixup_info
3874 .into_iter()
3875 .map(|(extra_newline_inserted, new_selection)| {
3876 let mut cursor = new_selection.end.to_point(&buffer);
3877 if extra_newline_inserted {
3878 cursor.row -= 1;
3879 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3880 }
3881 new_selection.map(|_| cursor)
3882 })
3883 .collect();
3884
3885 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3886 this.refresh_inline_completion(true, false, cx);
3887 });
3888 }
3889
3890 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3891 let buffer = self.buffer.read(cx);
3892 let snapshot = buffer.snapshot(cx);
3893
3894 let mut edits = Vec::new();
3895 let mut rows = Vec::new();
3896
3897 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3898 let cursor = selection.head();
3899 let row = cursor.row;
3900
3901 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3902
3903 let newline = "\n".to_string();
3904 edits.push((start_of_line..start_of_line, newline));
3905
3906 rows.push(row + rows_inserted as u32);
3907 }
3908
3909 self.transact(cx, |editor, cx| {
3910 editor.edit(edits, cx);
3911
3912 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3913 let mut index = 0;
3914 s.move_cursors_with(|map, _, _| {
3915 let row = rows[index];
3916 index += 1;
3917
3918 let point = Point::new(row, 0);
3919 let boundary = map.next_line_boundary(point).1;
3920 let clipped = map.clip_point(boundary, Bias::Left);
3921
3922 (clipped, SelectionGoal::None)
3923 });
3924 });
3925
3926 let mut indent_edits = Vec::new();
3927 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3928 for row in rows {
3929 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3930 for (row, indent) in indents {
3931 if indent.len == 0 {
3932 continue;
3933 }
3934
3935 let text = match indent.kind {
3936 IndentKind::Space => " ".repeat(indent.len as usize),
3937 IndentKind::Tab => "\t".repeat(indent.len as usize),
3938 };
3939 let point = Point::new(row.0, 0);
3940 indent_edits.push((point..point, text));
3941 }
3942 }
3943 editor.edit(indent_edits, cx);
3944 });
3945 }
3946
3947 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3948 let buffer = self.buffer.read(cx);
3949 let snapshot = buffer.snapshot(cx);
3950
3951 let mut edits = Vec::new();
3952 let mut rows = Vec::new();
3953 let mut rows_inserted = 0;
3954
3955 for selection in self.selections.all_adjusted(cx) {
3956 let cursor = selection.head();
3957 let row = cursor.row;
3958
3959 let point = Point::new(row + 1, 0);
3960 let start_of_line = snapshot.clip_point(point, Bias::Left);
3961
3962 let newline = "\n".to_string();
3963 edits.push((start_of_line..start_of_line, newline));
3964
3965 rows_inserted += 1;
3966 rows.push(row + rows_inserted);
3967 }
3968
3969 self.transact(cx, |editor, cx| {
3970 editor.edit(edits, cx);
3971
3972 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3973 let mut index = 0;
3974 s.move_cursors_with(|map, _, _| {
3975 let row = rows[index];
3976 index += 1;
3977
3978 let point = Point::new(row, 0);
3979 let boundary = map.next_line_boundary(point).1;
3980 let clipped = map.clip_point(boundary, Bias::Left);
3981
3982 (clipped, SelectionGoal::None)
3983 });
3984 });
3985
3986 let mut indent_edits = Vec::new();
3987 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3988 for row in rows {
3989 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3990 for (row, indent) in indents {
3991 if indent.len == 0 {
3992 continue;
3993 }
3994
3995 let text = match indent.kind {
3996 IndentKind::Space => " ".repeat(indent.len as usize),
3997 IndentKind::Tab => "\t".repeat(indent.len as usize),
3998 };
3999 let point = Point::new(row.0, 0);
4000 indent_edits.push((point..point, text));
4001 }
4002 }
4003 editor.edit(indent_edits, cx);
4004 });
4005 }
4006
4007 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
4008 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
4009 original_indent_columns: Vec::new(),
4010 });
4011 self.insert_with_autoindent_mode(text, autoindent, cx);
4012 }
4013
4014 fn insert_with_autoindent_mode(
4015 &mut self,
4016 text: &str,
4017 autoindent_mode: Option<AutoindentMode>,
4018 cx: &mut ViewContext<Self>,
4019 ) {
4020 if self.read_only(cx) {
4021 return;
4022 }
4023
4024 let text: Arc<str> = text.into();
4025 self.transact(cx, |this, cx| {
4026 let old_selections = this.selections.all_adjusted(cx);
4027 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
4028 let anchors = {
4029 let snapshot = buffer.read(cx);
4030 old_selections
4031 .iter()
4032 .map(|s| {
4033 let anchor = snapshot.anchor_after(s.head());
4034 s.map(|_| anchor)
4035 })
4036 .collect::<Vec<_>>()
4037 };
4038 buffer.edit(
4039 old_selections
4040 .iter()
4041 .map(|s| (s.start..s.end, text.clone())),
4042 autoindent_mode,
4043 cx,
4044 );
4045 anchors
4046 });
4047
4048 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4049 s.select_anchors(selection_anchors);
4050 })
4051 });
4052 }
4053
4054 fn trigger_completion_on_input(
4055 &mut self,
4056 text: &str,
4057 trigger_in_words: bool,
4058 cx: &mut ViewContext<Self>,
4059 ) {
4060 if self.is_completion_trigger(text, trigger_in_words, cx) {
4061 self.show_completions(
4062 &ShowCompletions {
4063 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
4064 },
4065 cx,
4066 );
4067 } else {
4068 self.hide_context_menu(cx);
4069 }
4070 }
4071
4072 fn is_completion_trigger(
4073 &self,
4074 text: &str,
4075 trigger_in_words: bool,
4076 cx: &mut ViewContext<Self>,
4077 ) -> bool {
4078 let position = self.selections.newest_anchor().head();
4079 let multibuffer = self.buffer.read(cx);
4080 let Some(buffer) = position
4081 .buffer_id
4082 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
4083 else {
4084 return false;
4085 };
4086
4087 if let Some(completion_provider) = &self.completion_provider {
4088 completion_provider.is_completion_trigger(
4089 &buffer,
4090 position.text_anchor,
4091 text,
4092 trigger_in_words,
4093 cx,
4094 )
4095 } else {
4096 false
4097 }
4098 }
4099
4100 /// If any empty selections is touching the start of its innermost containing autoclose
4101 /// region, expand it to select the brackets.
4102 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
4103 let selections = self.selections.all::<usize>(cx);
4104 let buffer = self.buffer.read(cx).read(cx);
4105 let new_selections = self
4106 .selections_with_autoclose_regions(selections, &buffer)
4107 .map(|(mut selection, region)| {
4108 if !selection.is_empty() {
4109 return selection;
4110 }
4111
4112 if let Some(region) = region {
4113 let mut range = region.range.to_offset(&buffer);
4114 if selection.start == range.start && range.start >= region.pair.start.len() {
4115 range.start -= region.pair.start.len();
4116 if buffer.contains_str_at(range.start, ®ion.pair.start)
4117 && buffer.contains_str_at(range.end, ®ion.pair.end)
4118 {
4119 range.end += region.pair.end.len();
4120 selection.start = range.start;
4121 selection.end = range.end;
4122
4123 return selection;
4124 }
4125 }
4126 }
4127
4128 let always_treat_brackets_as_autoclosed = buffer
4129 .settings_at(selection.start, cx)
4130 .always_treat_brackets_as_autoclosed;
4131
4132 if !always_treat_brackets_as_autoclosed {
4133 return selection;
4134 }
4135
4136 if let Some(scope) = buffer.language_scope_at(selection.start) {
4137 for (pair, enabled) in scope.brackets() {
4138 if !enabled || !pair.close {
4139 continue;
4140 }
4141
4142 if buffer.contains_str_at(selection.start, &pair.end) {
4143 let pair_start_len = pair.start.len();
4144 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
4145 {
4146 selection.start -= pair_start_len;
4147 selection.end += pair.end.len();
4148
4149 return selection;
4150 }
4151 }
4152 }
4153 }
4154
4155 selection
4156 })
4157 .collect();
4158
4159 drop(buffer);
4160 self.change_selections(None, cx, |selections| selections.select(new_selections));
4161 }
4162
4163 /// Iterate the given selections, and for each one, find the smallest surrounding
4164 /// autoclose region. This uses the ordering of the selections and the autoclose
4165 /// regions to avoid repeated comparisons.
4166 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4167 &'a self,
4168 selections: impl IntoIterator<Item = Selection<D>>,
4169 buffer: &'a MultiBufferSnapshot,
4170 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4171 let mut i = 0;
4172 let mut regions = self.autoclose_regions.as_slice();
4173 selections.into_iter().map(move |selection| {
4174 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4175
4176 let mut enclosing = None;
4177 while let Some(pair_state) = regions.get(i) {
4178 if pair_state.range.end.to_offset(buffer) < range.start {
4179 regions = ®ions[i + 1..];
4180 i = 0;
4181 } else if pair_state.range.start.to_offset(buffer) > range.end {
4182 break;
4183 } else {
4184 if pair_state.selection_id == selection.id {
4185 enclosing = Some(pair_state);
4186 }
4187 i += 1;
4188 }
4189 }
4190
4191 (selection, enclosing)
4192 })
4193 }
4194
4195 /// Remove any autoclose regions that no longer contain their selection.
4196 fn invalidate_autoclose_regions(
4197 &mut self,
4198 mut selections: &[Selection<Anchor>],
4199 buffer: &MultiBufferSnapshot,
4200 ) {
4201 self.autoclose_regions.retain(|state| {
4202 let mut i = 0;
4203 while let Some(selection) = selections.get(i) {
4204 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4205 selections = &selections[1..];
4206 continue;
4207 }
4208 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4209 break;
4210 }
4211 if selection.id == state.selection_id {
4212 return true;
4213 } else {
4214 i += 1;
4215 }
4216 }
4217 false
4218 });
4219 }
4220
4221 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4222 let offset = position.to_offset(buffer);
4223 let (word_range, kind) = buffer.surrounding_word(offset, true);
4224 if offset > word_range.start && kind == Some(CharKind::Word) {
4225 Some(
4226 buffer
4227 .text_for_range(word_range.start..offset)
4228 .collect::<String>(),
4229 )
4230 } else {
4231 None
4232 }
4233 }
4234
4235 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4236 self.refresh_inlay_hints(
4237 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4238 cx,
4239 );
4240 }
4241
4242 pub fn inlay_hints_enabled(&self) -> bool {
4243 self.inlay_hint_cache.enabled
4244 }
4245
4246 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4247 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4248 return;
4249 }
4250
4251 let reason_description = reason.description();
4252 let ignore_debounce = matches!(
4253 reason,
4254 InlayHintRefreshReason::SettingsChange(_)
4255 | InlayHintRefreshReason::Toggle(_)
4256 | InlayHintRefreshReason::ExcerptsRemoved(_)
4257 );
4258 let (invalidate_cache, required_languages) = match reason {
4259 InlayHintRefreshReason::Toggle(enabled) => {
4260 self.inlay_hint_cache.enabled = enabled;
4261 if enabled {
4262 (InvalidationStrategy::RefreshRequested, None)
4263 } else {
4264 self.inlay_hint_cache.clear();
4265 self.splice_inlays(
4266 self.visible_inlay_hints(cx)
4267 .iter()
4268 .map(|inlay| inlay.id)
4269 .collect(),
4270 Vec::new(),
4271 cx,
4272 );
4273 return;
4274 }
4275 }
4276 InlayHintRefreshReason::SettingsChange(new_settings) => {
4277 match self.inlay_hint_cache.update_settings(
4278 &self.buffer,
4279 new_settings,
4280 self.visible_inlay_hints(cx),
4281 cx,
4282 ) {
4283 ControlFlow::Break(Some(InlaySplice {
4284 to_remove,
4285 to_insert,
4286 })) => {
4287 self.splice_inlays(to_remove, to_insert, cx);
4288 return;
4289 }
4290 ControlFlow::Break(None) => return,
4291 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4292 }
4293 }
4294 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4295 if let Some(InlaySplice {
4296 to_remove,
4297 to_insert,
4298 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4299 {
4300 self.splice_inlays(to_remove, to_insert, cx);
4301 }
4302 return;
4303 }
4304 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4305 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4306 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4307 }
4308 InlayHintRefreshReason::RefreshRequested => {
4309 (InvalidationStrategy::RefreshRequested, None)
4310 }
4311 };
4312
4313 if let Some(InlaySplice {
4314 to_remove,
4315 to_insert,
4316 }) = self.inlay_hint_cache.spawn_hint_refresh(
4317 reason_description,
4318 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4319 invalidate_cache,
4320 ignore_debounce,
4321 cx,
4322 ) {
4323 self.splice_inlays(to_remove, to_insert, cx);
4324 }
4325 }
4326
4327 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4328 self.display_map
4329 .read(cx)
4330 .current_inlays()
4331 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4332 .cloned()
4333 .collect()
4334 }
4335
4336 pub fn excerpts_for_inlay_hints_query(
4337 &self,
4338 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4339 cx: &mut ViewContext<Editor>,
4340 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4341 let Some(project) = self.project.as_ref() else {
4342 return HashMap::default();
4343 };
4344 let project = project.read(cx);
4345 let multi_buffer = self.buffer().read(cx);
4346 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4347 let multi_buffer_visible_start = self
4348 .scroll_manager
4349 .anchor()
4350 .anchor
4351 .to_point(&multi_buffer_snapshot);
4352 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4353 multi_buffer_visible_start
4354 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4355 Bias::Left,
4356 );
4357 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4358 multi_buffer
4359 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4360 .into_iter()
4361 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4362 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4363 let buffer = buffer_handle.read(cx);
4364 let buffer_file = project::File::from_dyn(buffer.file())?;
4365 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4366 let worktree_entry = buffer_worktree
4367 .read(cx)
4368 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4369 if worktree_entry.is_ignored {
4370 return None;
4371 }
4372
4373 let language = buffer.language()?;
4374 if let Some(restrict_to_languages) = restrict_to_languages {
4375 if !restrict_to_languages.contains(language) {
4376 return None;
4377 }
4378 }
4379 Some((
4380 excerpt_id,
4381 (
4382 buffer_handle,
4383 buffer.version().clone(),
4384 excerpt_visible_range,
4385 ),
4386 ))
4387 })
4388 .collect()
4389 }
4390
4391 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4392 TextLayoutDetails {
4393 text_system: cx.text_system().clone(),
4394 editor_style: self.style.clone().unwrap(),
4395 rem_size: cx.rem_size(),
4396 scroll_anchor: self.scroll_manager.anchor(),
4397 visible_rows: self.visible_line_count(),
4398 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4399 }
4400 }
4401
4402 fn splice_inlays(
4403 &self,
4404 to_remove: Vec<InlayId>,
4405 to_insert: Vec<Inlay>,
4406 cx: &mut ViewContext<Self>,
4407 ) {
4408 self.display_map.update(cx, |display_map, cx| {
4409 display_map.splice_inlays(to_remove, to_insert, cx);
4410 });
4411 cx.notify();
4412 }
4413
4414 fn trigger_on_type_formatting(
4415 &self,
4416 input: String,
4417 cx: &mut ViewContext<Self>,
4418 ) -> Option<Task<Result<()>>> {
4419 if input.len() != 1 {
4420 return None;
4421 }
4422
4423 let project = self.project.as_ref()?;
4424 let position = self.selections.newest_anchor().head();
4425 let (buffer, buffer_position) = self
4426 .buffer
4427 .read(cx)
4428 .text_anchor_for_position(position, cx)?;
4429
4430 let settings = language_settings::language_settings(
4431 buffer
4432 .read(cx)
4433 .language_at(buffer_position)
4434 .map(|l| l.name()),
4435 buffer.read(cx).file(),
4436 cx,
4437 );
4438 if !settings.use_on_type_format {
4439 return None;
4440 }
4441
4442 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4443 // hence we do LSP request & edit on host side only — add formats to host's history.
4444 let push_to_lsp_host_history = true;
4445 // If this is not the host, append its history with new edits.
4446 let push_to_client_history = project.read(cx).is_via_collab();
4447
4448 let on_type_formatting = project.update(cx, |project, cx| {
4449 project.on_type_format(
4450 buffer.clone(),
4451 buffer_position,
4452 input,
4453 push_to_lsp_host_history,
4454 cx,
4455 )
4456 });
4457 Some(cx.spawn(|editor, mut cx| async move {
4458 if let Some(transaction) = on_type_formatting.await? {
4459 if push_to_client_history {
4460 buffer
4461 .update(&mut cx, |buffer, _| {
4462 buffer.push_transaction(transaction, Instant::now());
4463 })
4464 .ok();
4465 }
4466 editor.update(&mut cx, |editor, cx| {
4467 editor.refresh_document_highlights(cx);
4468 })?;
4469 }
4470 Ok(())
4471 }))
4472 }
4473
4474 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4475 if self.pending_rename.is_some() {
4476 return;
4477 }
4478
4479 let Some(provider) = self.completion_provider.as_ref() else {
4480 return;
4481 };
4482
4483 if !self.snippet_stack.is_empty() && self.context_menu.read().as_ref().is_some() {
4484 return;
4485 }
4486
4487 let position = self.selections.newest_anchor().head();
4488 let (buffer, buffer_position) =
4489 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4490 output
4491 } else {
4492 return;
4493 };
4494
4495 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4496 let is_followup_invoke = {
4497 let context_menu_state = self.context_menu.read();
4498 matches!(
4499 context_menu_state.deref(),
4500 Some(ContextMenu::Completions(_))
4501 )
4502 };
4503 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4504 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4505 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4506 CompletionTriggerKind::TRIGGER_CHARACTER
4507 }
4508
4509 _ => CompletionTriggerKind::INVOKED,
4510 };
4511 let completion_context = CompletionContext {
4512 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4513 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4514 Some(String::from(trigger))
4515 } else {
4516 None
4517 }
4518 }),
4519 trigger_kind,
4520 };
4521 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4522 let sort_completions = provider.sort_completions();
4523
4524 let id = post_inc(&mut self.next_completion_id);
4525 let task = cx.spawn(|this, mut cx| {
4526 async move {
4527 this.update(&mut cx, |this, _| {
4528 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4529 })?;
4530 let completions = completions.await.log_err();
4531 let menu = if let Some(completions) = completions {
4532 let mut menu = CompletionsMenu::new(
4533 id,
4534 sort_completions,
4535 position,
4536 buffer.clone(),
4537 completions.into(),
4538 );
4539 menu.filter(query.as_deref(), cx.background_executor().clone())
4540 .await;
4541
4542 if menu.matches.is_empty() {
4543 None
4544 } else {
4545 this.update(&mut cx, |editor, cx| {
4546 let completions = menu.completions.clone();
4547 let matches = menu.matches.clone();
4548
4549 let delay_ms = EditorSettings::get_global(cx)
4550 .completion_documentation_secondary_query_debounce;
4551 let delay = Duration::from_millis(delay_ms);
4552 editor
4553 .completion_documentation_pre_resolve_debounce
4554 .fire_new(delay, cx, |editor, cx| {
4555 CompletionsMenu::pre_resolve_completion_documentation(
4556 buffer,
4557 completions,
4558 matches,
4559 editor,
4560 cx,
4561 )
4562 });
4563 })
4564 .ok();
4565 Some(menu)
4566 }
4567 } else {
4568 None
4569 };
4570
4571 this.update(&mut cx, |this, cx| {
4572 let mut context_menu = this.context_menu.write();
4573 match context_menu.as_ref() {
4574 None => {}
4575
4576 Some(ContextMenu::Completions(prev_menu)) => {
4577 if prev_menu.id > id {
4578 return;
4579 }
4580 }
4581
4582 _ => return,
4583 }
4584
4585 if this.focus_handle.is_focused(cx) && menu.is_some() {
4586 let menu = menu.unwrap();
4587 *context_menu = Some(ContextMenu::Completions(menu));
4588 drop(context_menu);
4589 this.discard_inline_completion(false, cx);
4590 cx.notify();
4591 } else if this.completion_tasks.len() <= 1 {
4592 // If there are no more completion tasks and the last menu was
4593 // empty, we should hide it. If it was already hidden, we should
4594 // also show the copilot completion when available.
4595 drop(context_menu);
4596 if this.hide_context_menu(cx).is_none() {
4597 this.update_visible_inline_completion(cx);
4598 }
4599 }
4600 })?;
4601
4602 Ok::<_, anyhow::Error>(())
4603 }
4604 .log_err()
4605 });
4606
4607 self.completion_tasks.push((id, task));
4608 }
4609
4610 pub fn confirm_completion(
4611 &mut self,
4612 action: &ConfirmCompletion,
4613 cx: &mut ViewContext<Self>,
4614 ) -> Option<Task<Result<()>>> {
4615 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4616 }
4617
4618 pub fn compose_completion(
4619 &mut self,
4620 action: &ComposeCompletion,
4621 cx: &mut ViewContext<Self>,
4622 ) -> Option<Task<Result<()>>> {
4623 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4624 }
4625
4626 fn do_completion(
4627 &mut self,
4628 item_ix: Option<usize>,
4629 intent: CompletionIntent,
4630 cx: &mut ViewContext<Editor>,
4631 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4632 use language::ToOffset as _;
4633
4634 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4635 menu
4636 } else {
4637 return None;
4638 };
4639
4640 let mat = completions_menu
4641 .matches
4642 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4643 let buffer_handle = completions_menu.buffer;
4644 let completions = completions_menu.completions.read();
4645 let completion = completions.get(mat.candidate_id)?;
4646 cx.stop_propagation();
4647
4648 let snippet;
4649 let text;
4650
4651 if completion.is_snippet() {
4652 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4653 text = snippet.as_ref().unwrap().text.clone();
4654 } else {
4655 snippet = None;
4656 text = completion.new_text.clone();
4657 };
4658 let selections = self.selections.all::<usize>(cx);
4659 let buffer = buffer_handle.read(cx);
4660 let old_range = completion.old_range.to_offset(buffer);
4661 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4662
4663 let newest_selection = self.selections.newest_anchor();
4664 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4665 return None;
4666 }
4667
4668 let lookbehind = newest_selection
4669 .start
4670 .text_anchor
4671 .to_offset(buffer)
4672 .saturating_sub(old_range.start);
4673 let lookahead = old_range
4674 .end
4675 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4676 let mut common_prefix_len = old_text
4677 .bytes()
4678 .zip(text.bytes())
4679 .take_while(|(a, b)| a == b)
4680 .count();
4681
4682 let snapshot = self.buffer.read(cx).snapshot(cx);
4683 let mut range_to_replace: Option<Range<isize>> = None;
4684 let mut ranges = Vec::new();
4685 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4686 for selection in &selections {
4687 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4688 let start = selection.start.saturating_sub(lookbehind);
4689 let end = selection.end + lookahead;
4690 if selection.id == newest_selection.id {
4691 range_to_replace = Some(
4692 ((start + common_prefix_len) as isize - selection.start as isize)
4693 ..(end as isize - selection.start as isize),
4694 );
4695 }
4696 ranges.push(start + common_prefix_len..end);
4697 } else {
4698 common_prefix_len = 0;
4699 ranges.clear();
4700 ranges.extend(selections.iter().map(|s| {
4701 if s.id == newest_selection.id {
4702 range_to_replace = Some(
4703 old_range.start.to_offset_utf16(&snapshot).0 as isize
4704 - selection.start as isize
4705 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4706 - selection.start as isize,
4707 );
4708 old_range.clone()
4709 } else {
4710 s.start..s.end
4711 }
4712 }));
4713 break;
4714 }
4715 if !self.linked_edit_ranges.is_empty() {
4716 let start_anchor = snapshot.anchor_before(selection.head());
4717 let end_anchor = snapshot.anchor_after(selection.tail());
4718 if let Some(ranges) = self
4719 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4720 {
4721 for (buffer, edits) in ranges {
4722 linked_edits.entry(buffer.clone()).or_default().extend(
4723 edits
4724 .into_iter()
4725 .map(|range| (range, text[common_prefix_len..].to_owned())),
4726 );
4727 }
4728 }
4729 }
4730 }
4731 let text = &text[common_prefix_len..];
4732
4733 cx.emit(EditorEvent::InputHandled {
4734 utf16_range_to_replace: range_to_replace,
4735 text: text.into(),
4736 });
4737
4738 self.transact(cx, |this, cx| {
4739 if let Some(mut snippet) = snippet {
4740 snippet.text = text.to_string();
4741 for tabstop in snippet
4742 .tabstops
4743 .iter_mut()
4744 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4745 {
4746 tabstop.start -= common_prefix_len as isize;
4747 tabstop.end -= common_prefix_len as isize;
4748 }
4749
4750 this.insert_snippet(&ranges, snippet, cx).log_err();
4751 } else {
4752 this.buffer.update(cx, |buffer, cx| {
4753 buffer.edit(
4754 ranges.iter().map(|range| (range.clone(), text)),
4755 this.autoindent_mode.clone(),
4756 cx,
4757 );
4758 });
4759 }
4760 for (buffer, edits) in linked_edits {
4761 buffer.update(cx, |buffer, cx| {
4762 let snapshot = buffer.snapshot();
4763 let edits = edits
4764 .into_iter()
4765 .map(|(range, text)| {
4766 use text::ToPoint as TP;
4767 let end_point = TP::to_point(&range.end, &snapshot);
4768 let start_point = TP::to_point(&range.start, &snapshot);
4769 (start_point..end_point, text)
4770 })
4771 .sorted_by_key(|(range, _)| range.start)
4772 .collect::<Vec<_>>();
4773 buffer.edit(edits, None, cx);
4774 })
4775 }
4776
4777 this.refresh_inline_completion(true, false, cx);
4778 });
4779
4780 let show_new_completions_on_confirm = completion
4781 .confirm
4782 .as_ref()
4783 .map_or(false, |confirm| confirm(intent, cx));
4784 if show_new_completions_on_confirm {
4785 self.show_completions(&ShowCompletions { trigger: None }, cx);
4786 }
4787
4788 let provider = self.completion_provider.as_ref()?;
4789 let apply_edits = provider.apply_additional_edits_for_completion(
4790 buffer_handle,
4791 completion.clone(),
4792 true,
4793 cx,
4794 );
4795
4796 let editor_settings = EditorSettings::get_global(cx);
4797 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4798 // After the code completion is finished, users often want to know what signatures are needed.
4799 // so we should automatically call signature_help
4800 self.show_signature_help(&ShowSignatureHelp, cx);
4801 }
4802
4803 Some(cx.foreground_executor().spawn(async move {
4804 apply_edits.await?;
4805 Ok(())
4806 }))
4807 }
4808
4809 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4810 let mut context_menu = self.context_menu.write();
4811 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4812 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4813 // Toggle if we're selecting the same one
4814 *context_menu = None;
4815 cx.notify();
4816 return;
4817 } else {
4818 // Otherwise, clear it and start a new one
4819 *context_menu = None;
4820 cx.notify();
4821 }
4822 }
4823 drop(context_menu);
4824 let snapshot = self.snapshot(cx);
4825 let deployed_from_indicator = action.deployed_from_indicator;
4826 let mut task = self.code_actions_task.take();
4827 let action = action.clone();
4828 cx.spawn(|editor, mut cx| async move {
4829 while let Some(prev_task) = task {
4830 prev_task.await.log_err();
4831 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4832 }
4833
4834 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4835 if editor.focus_handle.is_focused(cx) {
4836 let multibuffer_point = action
4837 .deployed_from_indicator
4838 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4839 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4840 let (buffer, buffer_row) = snapshot
4841 .buffer_snapshot
4842 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4843 .and_then(|(buffer_snapshot, range)| {
4844 editor
4845 .buffer
4846 .read(cx)
4847 .buffer(buffer_snapshot.remote_id())
4848 .map(|buffer| (buffer, range.start.row))
4849 })?;
4850 let (_, code_actions) = editor
4851 .available_code_actions
4852 .clone()
4853 .and_then(|(location, code_actions)| {
4854 let snapshot = location.buffer.read(cx).snapshot();
4855 let point_range = location.range.to_point(&snapshot);
4856 let point_range = point_range.start.row..=point_range.end.row;
4857 if point_range.contains(&buffer_row) {
4858 Some((location, code_actions))
4859 } else {
4860 None
4861 }
4862 })
4863 .unzip();
4864 let buffer_id = buffer.read(cx).remote_id();
4865 let tasks = editor
4866 .tasks
4867 .get(&(buffer_id, buffer_row))
4868 .map(|t| Arc::new(t.to_owned()));
4869 if tasks.is_none() && code_actions.is_none() {
4870 return None;
4871 }
4872
4873 editor.completion_tasks.clear();
4874 editor.discard_inline_completion(false, cx);
4875 let task_context =
4876 tasks
4877 .as_ref()
4878 .zip(editor.project.clone())
4879 .map(|(tasks, project)| {
4880 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4881 });
4882
4883 Some(cx.spawn(|editor, mut cx| async move {
4884 let task_context = match task_context {
4885 Some(task_context) => task_context.await,
4886 None => None,
4887 };
4888 let resolved_tasks =
4889 tasks.zip(task_context).map(|(tasks, task_context)| {
4890 Arc::new(ResolvedTasks {
4891 templates: tasks.resolve(&task_context).collect(),
4892 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4893 multibuffer_point.row,
4894 tasks.column,
4895 )),
4896 })
4897 });
4898 let spawn_straight_away = resolved_tasks
4899 .as_ref()
4900 .map_or(false, |tasks| tasks.templates.len() == 1)
4901 && code_actions
4902 .as_ref()
4903 .map_or(true, |actions| actions.is_empty());
4904 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4905 *editor.context_menu.write() =
4906 Some(ContextMenu::CodeActions(CodeActionsMenu {
4907 buffer,
4908 actions: CodeActionContents {
4909 tasks: resolved_tasks,
4910 actions: code_actions,
4911 },
4912 selected_item: Default::default(),
4913 scroll_handle: UniformListScrollHandle::default(),
4914 deployed_from_indicator,
4915 }));
4916 if spawn_straight_away {
4917 if let Some(task) = editor.confirm_code_action(
4918 &ConfirmCodeAction { item_ix: Some(0) },
4919 cx,
4920 ) {
4921 cx.notify();
4922 return task;
4923 }
4924 }
4925 cx.notify();
4926 Task::ready(Ok(()))
4927 }) {
4928 task.await
4929 } else {
4930 Ok(())
4931 }
4932 }))
4933 } else {
4934 Some(Task::ready(Ok(())))
4935 }
4936 })?;
4937 if let Some(task) = spawned_test_task {
4938 task.await?;
4939 }
4940
4941 Ok::<_, anyhow::Error>(())
4942 })
4943 .detach_and_log_err(cx);
4944 }
4945
4946 pub fn confirm_code_action(
4947 &mut self,
4948 action: &ConfirmCodeAction,
4949 cx: &mut ViewContext<Self>,
4950 ) -> Option<Task<Result<()>>> {
4951 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4952 menu
4953 } else {
4954 return None;
4955 };
4956 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4957 let action = actions_menu.actions.get(action_ix)?;
4958 let title = action.label();
4959 let buffer = actions_menu.buffer;
4960 let workspace = self.workspace()?;
4961
4962 match action {
4963 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4964 workspace.update(cx, |workspace, cx| {
4965 workspace::tasks::schedule_resolved_task(
4966 workspace,
4967 task_source_kind,
4968 resolved_task,
4969 false,
4970 cx,
4971 );
4972
4973 Some(Task::ready(Ok(())))
4974 })
4975 }
4976 CodeActionsItem::CodeAction {
4977 excerpt_id,
4978 action,
4979 provider,
4980 } => {
4981 let apply_code_action =
4982 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4983 let workspace = workspace.downgrade();
4984 Some(cx.spawn(|editor, cx| async move {
4985 let project_transaction = apply_code_action.await?;
4986 Self::open_project_transaction(
4987 &editor,
4988 workspace,
4989 project_transaction,
4990 title,
4991 cx,
4992 )
4993 .await
4994 }))
4995 }
4996 }
4997 }
4998
4999 pub async fn open_project_transaction(
5000 this: &WeakView<Editor>,
5001 workspace: WeakView<Workspace>,
5002 transaction: ProjectTransaction,
5003 title: String,
5004 mut cx: AsyncWindowContext,
5005 ) -> Result<()> {
5006 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
5007 cx.update(|cx| {
5008 entries.sort_unstable_by_key(|(buffer, _)| {
5009 buffer.read(cx).file().map(|f| f.path().clone())
5010 });
5011 })?;
5012
5013 // If the project transaction's edits are all contained within this editor, then
5014 // avoid opening a new editor to display them.
5015
5016 if let Some((buffer, transaction)) = entries.first() {
5017 if entries.len() == 1 {
5018 let excerpt = this.update(&mut cx, |editor, cx| {
5019 editor
5020 .buffer()
5021 .read(cx)
5022 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
5023 })?;
5024 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
5025 if excerpted_buffer == *buffer {
5026 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
5027 let excerpt_range = excerpt_range.to_offset(buffer);
5028 buffer
5029 .edited_ranges_for_transaction::<usize>(transaction)
5030 .all(|range| {
5031 excerpt_range.start <= range.start
5032 && excerpt_range.end >= range.end
5033 })
5034 })?;
5035
5036 if all_edits_within_excerpt {
5037 return Ok(());
5038 }
5039 }
5040 }
5041 }
5042 } else {
5043 return Ok(());
5044 }
5045
5046 let mut ranges_to_highlight = Vec::new();
5047 let excerpt_buffer = cx.new_model(|cx| {
5048 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
5049 for (buffer_handle, transaction) in &entries {
5050 let buffer = buffer_handle.read(cx);
5051 ranges_to_highlight.extend(
5052 multibuffer.push_excerpts_with_context_lines(
5053 buffer_handle.clone(),
5054 buffer
5055 .edited_ranges_for_transaction::<usize>(transaction)
5056 .collect(),
5057 DEFAULT_MULTIBUFFER_CONTEXT,
5058 cx,
5059 ),
5060 );
5061 }
5062 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
5063 multibuffer
5064 })?;
5065
5066 workspace.update(&mut cx, |workspace, cx| {
5067 let project = workspace.project().clone();
5068 let editor =
5069 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
5070 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
5071 editor.update(cx, |editor, cx| {
5072 editor.highlight_background::<Self>(
5073 &ranges_to_highlight,
5074 |theme| theme.editor_highlighted_line_background,
5075 cx,
5076 );
5077 });
5078 })?;
5079
5080 Ok(())
5081 }
5082
5083 pub fn clear_code_action_providers(&mut self) {
5084 self.code_action_providers.clear();
5085 self.available_code_actions.take();
5086 }
5087
5088 pub fn push_code_action_provider(
5089 &mut self,
5090 provider: Arc<dyn CodeActionProvider>,
5091 cx: &mut ViewContext<Self>,
5092 ) {
5093 self.code_action_providers.push(provider);
5094 self.refresh_code_actions(cx);
5095 }
5096
5097 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5098 let buffer = self.buffer.read(cx);
5099 let newest_selection = self.selections.newest_anchor().clone();
5100 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
5101 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
5102 if start_buffer != end_buffer {
5103 return None;
5104 }
5105
5106 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
5107 cx.background_executor()
5108 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
5109 .await;
5110
5111 let (providers, tasks) = this.update(&mut cx, |this, cx| {
5112 let providers = this.code_action_providers.clone();
5113 let tasks = this
5114 .code_action_providers
5115 .iter()
5116 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5117 .collect::<Vec<_>>();
5118 (providers, tasks)
5119 })?;
5120
5121 let mut actions = Vec::new();
5122 for (provider, provider_actions) in
5123 providers.into_iter().zip(future::join_all(tasks).await)
5124 {
5125 if let Some(provider_actions) = provider_actions.log_err() {
5126 actions.extend(provider_actions.into_iter().map(|action| {
5127 AvailableCodeAction {
5128 excerpt_id: newest_selection.start.excerpt_id,
5129 action,
5130 provider: provider.clone(),
5131 }
5132 }));
5133 }
5134 }
5135
5136 this.update(&mut cx, |this, cx| {
5137 this.available_code_actions = if actions.is_empty() {
5138 None
5139 } else {
5140 Some((
5141 Location {
5142 buffer: start_buffer,
5143 range: start..end,
5144 },
5145 actions.into(),
5146 ))
5147 };
5148 cx.notify();
5149 })
5150 }));
5151 None
5152 }
5153
5154 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5155 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5156 self.show_git_blame_inline = false;
5157
5158 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5159 cx.background_executor().timer(delay).await;
5160
5161 this.update(&mut cx, |this, cx| {
5162 this.show_git_blame_inline = true;
5163 cx.notify();
5164 })
5165 .log_err();
5166 }));
5167 }
5168 }
5169
5170 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5171 if self.pending_rename.is_some() {
5172 return None;
5173 }
5174
5175 let provider = self.semantics_provider.clone()?;
5176 let buffer = self.buffer.read(cx);
5177 let newest_selection = self.selections.newest_anchor().clone();
5178 let cursor_position = newest_selection.head();
5179 let (cursor_buffer, cursor_buffer_position) =
5180 buffer.text_anchor_for_position(cursor_position, cx)?;
5181 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5182 if cursor_buffer != tail_buffer {
5183 return None;
5184 }
5185
5186 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5187 cx.background_executor()
5188 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5189 .await;
5190
5191 let highlights = if let Some(highlights) = cx
5192 .update(|cx| {
5193 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5194 })
5195 .ok()
5196 .flatten()
5197 {
5198 highlights.await.log_err()
5199 } else {
5200 None
5201 };
5202
5203 if let Some(highlights) = highlights {
5204 this.update(&mut cx, |this, cx| {
5205 if this.pending_rename.is_some() {
5206 return;
5207 }
5208
5209 let buffer_id = cursor_position.buffer_id;
5210 let buffer = this.buffer.read(cx);
5211 if !buffer
5212 .text_anchor_for_position(cursor_position, cx)
5213 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5214 {
5215 return;
5216 }
5217
5218 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5219 let mut write_ranges = Vec::new();
5220 let mut read_ranges = Vec::new();
5221 for highlight in highlights {
5222 for (excerpt_id, excerpt_range) in
5223 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5224 {
5225 let start = highlight
5226 .range
5227 .start
5228 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5229 let end = highlight
5230 .range
5231 .end
5232 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5233 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5234 continue;
5235 }
5236
5237 let range = Anchor {
5238 buffer_id,
5239 excerpt_id,
5240 text_anchor: start,
5241 }..Anchor {
5242 buffer_id,
5243 excerpt_id,
5244 text_anchor: end,
5245 };
5246 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5247 write_ranges.push(range);
5248 } else {
5249 read_ranges.push(range);
5250 }
5251 }
5252 }
5253
5254 this.highlight_background::<DocumentHighlightRead>(
5255 &read_ranges,
5256 |theme| theme.editor_document_highlight_read_background,
5257 cx,
5258 );
5259 this.highlight_background::<DocumentHighlightWrite>(
5260 &write_ranges,
5261 |theme| theme.editor_document_highlight_write_background,
5262 cx,
5263 );
5264 cx.notify();
5265 })
5266 .log_err();
5267 }
5268 }));
5269 None
5270 }
5271
5272 pub fn refresh_inline_completion(
5273 &mut self,
5274 debounce: bool,
5275 user_requested: bool,
5276 cx: &mut ViewContext<Self>,
5277 ) -> Option<()> {
5278 let provider = self.inline_completion_provider()?;
5279 let cursor = self.selections.newest_anchor().head();
5280 let (buffer, cursor_buffer_position) =
5281 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5282
5283 if !user_requested
5284 && (!self.enable_inline_completions
5285 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5286 {
5287 self.discard_inline_completion(false, cx);
5288 return None;
5289 }
5290
5291 self.update_visible_inline_completion(cx);
5292 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5293 Some(())
5294 }
5295
5296 fn cycle_inline_completion(
5297 &mut self,
5298 direction: Direction,
5299 cx: &mut ViewContext<Self>,
5300 ) -> Option<()> {
5301 let provider = self.inline_completion_provider()?;
5302 let cursor = self.selections.newest_anchor().head();
5303 let (buffer, cursor_buffer_position) =
5304 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5305 if !self.enable_inline_completions
5306 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5307 {
5308 return None;
5309 }
5310
5311 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5312 self.update_visible_inline_completion(cx);
5313
5314 Some(())
5315 }
5316
5317 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5318 if !self.has_active_inline_completion(cx) {
5319 self.refresh_inline_completion(false, true, cx);
5320 return;
5321 }
5322
5323 self.update_visible_inline_completion(cx);
5324 }
5325
5326 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5327 self.show_cursor_names(cx);
5328 }
5329
5330 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5331 self.show_cursor_names = true;
5332 cx.notify();
5333 cx.spawn(|this, mut cx| async move {
5334 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5335 this.update(&mut cx, |this, cx| {
5336 this.show_cursor_names = false;
5337 cx.notify()
5338 })
5339 .ok()
5340 })
5341 .detach();
5342 }
5343
5344 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5345 if self.has_active_inline_completion(cx) {
5346 self.cycle_inline_completion(Direction::Next, cx);
5347 } else {
5348 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5349 if is_copilot_disabled {
5350 cx.propagate();
5351 }
5352 }
5353 }
5354
5355 pub fn previous_inline_completion(
5356 &mut self,
5357 _: &PreviousInlineCompletion,
5358 cx: &mut ViewContext<Self>,
5359 ) {
5360 if self.has_active_inline_completion(cx) {
5361 self.cycle_inline_completion(Direction::Prev, cx);
5362 } else {
5363 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5364 if is_copilot_disabled {
5365 cx.propagate();
5366 }
5367 }
5368 }
5369
5370 pub fn accept_inline_completion(
5371 &mut self,
5372 _: &AcceptInlineCompletion,
5373 cx: &mut ViewContext<Self>,
5374 ) {
5375 let Some(completion) = self.take_active_inline_completion(cx) else {
5376 return;
5377 };
5378 if let Some(provider) = self.inline_completion_provider() {
5379 provider.accept(cx);
5380 }
5381
5382 cx.emit(EditorEvent::InputHandled {
5383 utf16_range_to_replace: None,
5384 text: completion.text.to_string().into(),
5385 });
5386
5387 if let Some(range) = completion.delete_range {
5388 self.change_selections(None, cx, |s| s.select_ranges([range]))
5389 }
5390 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5391 self.refresh_inline_completion(true, true, cx);
5392 cx.notify();
5393 }
5394
5395 pub fn accept_partial_inline_completion(
5396 &mut self,
5397 _: &AcceptPartialInlineCompletion,
5398 cx: &mut ViewContext<Self>,
5399 ) {
5400 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5401 if let Some(completion) = self.take_active_inline_completion(cx) {
5402 let mut partial_completion = completion
5403 .text
5404 .chars()
5405 .by_ref()
5406 .take_while(|c| c.is_alphabetic())
5407 .collect::<String>();
5408 if partial_completion.is_empty() {
5409 partial_completion = completion
5410 .text
5411 .chars()
5412 .by_ref()
5413 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5414 .collect::<String>();
5415 }
5416
5417 cx.emit(EditorEvent::InputHandled {
5418 utf16_range_to_replace: None,
5419 text: partial_completion.clone().into(),
5420 });
5421
5422 if let Some(range) = completion.delete_range {
5423 self.change_selections(None, cx, |s| s.select_ranges([range]))
5424 }
5425 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5426
5427 self.refresh_inline_completion(true, true, cx);
5428 cx.notify();
5429 }
5430 }
5431 }
5432
5433 fn discard_inline_completion(
5434 &mut self,
5435 should_report_inline_completion_event: bool,
5436 cx: &mut ViewContext<Self>,
5437 ) -> bool {
5438 if let Some(provider) = self.inline_completion_provider() {
5439 provider.discard(should_report_inline_completion_event, cx);
5440 }
5441
5442 self.take_active_inline_completion(cx).is_some()
5443 }
5444
5445 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5446 if let Some(completion) = self.active_inline_completion.as_ref() {
5447 let buffer = self.buffer.read(cx).read(cx);
5448 completion.position.is_valid(&buffer)
5449 } else {
5450 false
5451 }
5452 }
5453
5454 fn take_active_inline_completion(
5455 &mut self,
5456 cx: &mut ViewContext<Self>,
5457 ) -> Option<CompletionState> {
5458 let completion = self.active_inline_completion.take()?;
5459 let render_inlay_ids = completion.render_inlay_ids.clone();
5460 self.display_map.update(cx, |map, cx| {
5461 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5462 });
5463 let buffer = self.buffer.read(cx).read(cx);
5464
5465 if completion.position.is_valid(&buffer) {
5466 Some(completion)
5467 } else {
5468 None
5469 }
5470 }
5471
5472 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5473 let selection = self.selections.newest_anchor();
5474 let cursor = selection.head();
5475
5476 let excerpt_id = cursor.excerpt_id;
5477
5478 if self.context_menu.read().is_none()
5479 && self.completion_tasks.is_empty()
5480 && selection.start == selection.end
5481 {
5482 if let Some(provider) = self.inline_completion_provider() {
5483 if let Some((buffer, cursor_buffer_position)) =
5484 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5485 {
5486 if let Some(proposal) =
5487 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5488 {
5489 let mut to_remove = Vec::new();
5490 if let Some(completion) = self.active_inline_completion.take() {
5491 to_remove.extend(completion.render_inlay_ids.iter());
5492 }
5493
5494 let to_add = proposal
5495 .inlays
5496 .iter()
5497 .filter_map(|inlay| {
5498 let snapshot = self.buffer.read(cx).snapshot(cx);
5499 let id = post_inc(&mut self.next_inlay_id);
5500 match inlay {
5501 InlayProposal::Hint(position, hint) => {
5502 let position =
5503 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5504 Some(Inlay::hint(id, position, hint))
5505 }
5506 InlayProposal::Suggestion(position, text) => {
5507 let position =
5508 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5509 Some(Inlay::suggestion(id, position, text.clone()))
5510 }
5511 }
5512 })
5513 .collect_vec();
5514
5515 self.active_inline_completion = Some(CompletionState {
5516 position: cursor,
5517 text: proposal.text,
5518 delete_range: proposal.delete_range.and_then(|range| {
5519 let snapshot = self.buffer.read(cx).snapshot(cx);
5520 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5521 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5522 Some(start?..end?)
5523 }),
5524 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5525 });
5526
5527 self.display_map
5528 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5529
5530 cx.notify();
5531 return;
5532 }
5533 }
5534 }
5535 }
5536
5537 self.discard_inline_completion(false, cx);
5538 }
5539
5540 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5541 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5542 }
5543
5544 fn render_code_actions_indicator(
5545 &self,
5546 _style: &EditorStyle,
5547 row: DisplayRow,
5548 is_active: bool,
5549 cx: &mut ViewContext<Self>,
5550 ) -> Option<IconButton> {
5551 if self.available_code_actions.is_some() {
5552 Some(
5553 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5554 .shape(ui::IconButtonShape::Square)
5555 .icon_size(IconSize::XSmall)
5556 .icon_color(Color::Muted)
5557 .selected(is_active)
5558 .tooltip({
5559 let focus_handle = self.focus_handle.clone();
5560 move |cx| {
5561 Tooltip::for_action_in(
5562 "Toggle Code Actions",
5563 &ToggleCodeActions {
5564 deployed_from_indicator: None,
5565 },
5566 &focus_handle,
5567 cx,
5568 )
5569 }
5570 })
5571 .on_click(cx.listener(move |editor, _e, cx| {
5572 editor.focus(cx);
5573 editor.toggle_code_actions(
5574 &ToggleCodeActions {
5575 deployed_from_indicator: Some(row),
5576 },
5577 cx,
5578 );
5579 })),
5580 )
5581 } else {
5582 None
5583 }
5584 }
5585
5586 fn clear_tasks(&mut self) {
5587 self.tasks.clear()
5588 }
5589
5590 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5591 if self.tasks.insert(key, value).is_some() {
5592 // This case should hopefully be rare, but just in case...
5593 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5594 }
5595 }
5596
5597 fn build_tasks_context(
5598 project: &Model<Project>,
5599 buffer: &Model<Buffer>,
5600 buffer_row: u32,
5601 tasks: &Arc<RunnableTasks>,
5602 cx: &mut ViewContext<Self>,
5603 ) -> Task<Option<task::TaskContext>> {
5604 let position = Point::new(buffer_row, tasks.column);
5605 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5606 let location = Location {
5607 buffer: buffer.clone(),
5608 range: range_start..range_start,
5609 };
5610 // Fill in the environmental variables from the tree-sitter captures
5611 let mut captured_task_variables = TaskVariables::default();
5612 for (capture_name, value) in tasks.extra_variables.clone() {
5613 captured_task_variables.insert(
5614 task::VariableName::Custom(capture_name.into()),
5615 value.clone(),
5616 );
5617 }
5618 project.update(cx, |project, cx| {
5619 project.task_store().update(cx, |task_store, cx| {
5620 task_store.task_context_for_location(captured_task_variables, location, cx)
5621 })
5622 })
5623 }
5624
5625 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5626 let Some((workspace, _)) = self.workspace.clone() else {
5627 return;
5628 };
5629 let Some(project) = self.project.clone() else {
5630 return;
5631 };
5632
5633 // Try to find a closest, enclosing node using tree-sitter that has a
5634 // task
5635 let Some((buffer, buffer_row, tasks)) = self
5636 .find_enclosing_node_task(cx)
5637 // Or find the task that's closest in row-distance.
5638 .or_else(|| self.find_closest_task(cx))
5639 else {
5640 return;
5641 };
5642
5643 let reveal_strategy = action.reveal;
5644 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5645 cx.spawn(|_, mut cx| async move {
5646 let context = task_context.await?;
5647 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5648
5649 let resolved = resolved_task.resolved.as_mut()?;
5650 resolved.reveal = reveal_strategy;
5651
5652 workspace
5653 .update(&mut cx, |workspace, cx| {
5654 workspace::tasks::schedule_resolved_task(
5655 workspace,
5656 task_source_kind,
5657 resolved_task,
5658 false,
5659 cx,
5660 );
5661 })
5662 .ok()
5663 })
5664 .detach();
5665 }
5666
5667 fn find_closest_task(
5668 &mut self,
5669 cx: &mut ViewContext<Self>,
5670 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5671 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5672
5673 let ((buffer_id, row), tasks) = self
5674 .tasks
5675 .iter()
5676 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5677
5678 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5679 let tasks = Arc::new(tasks.to_owned());
5680 Some((buffer, *row, tasks))
5681 }
5682
5683 fn find_enclosing_node_task(
5684 &mut self,
5685 cx: &mut ViewContext<Self>,
5686 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5687 let snapshot = self.buffer.read(cx).snapshot(cx);
5688 let offset = self.selections.newest::<usize>(cx).head();
5689 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5690 let buffer_id = excerpt.buffer().remote_id();
5691
5692 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5693 let mut cursor = layer.node().walk();
5694
5695 while cursor.goto_first_child_for_byte(offset).is_some() {
5696 if cursor.node().end_byte() == offset {
5697 cursor.goto_next_sibling();
5698 }
5699 }
5700
5701 // Ascend to the smallest ancestor that contains the range and has a task.
5702 loop {
5703 let node = cursor.node();
5704 let node_range = node.byte_range();
5705 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5706
5707 // Check if this node contains our offset
5708 if node_range.start <= offset && node_range.end >= offset {
5709 // If it contains offset, check for task
5710 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5711 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5712 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5713 }
5714 }
5715
5716 if !cursor.goto_parent() {
5717 break;
5718 }
5719 }
5720 None
5721 }
5722
5723 fn render_run_indicator(
5724 &self,
5725 _style: &EditorStyle,
5726 is_active: bool,
5727 row: DisplayRow,
5728 cx: &mut ViewContext<Self>,
5729 ) -> IconButton {
5730 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5731 .shape(ui::IconButtonShape::Square)
5732 .icon_size(IconSize::XSmall)
5733 .icon_color(Color::Muted)
5734 .selected(is_active)
5735 .on_click(cx.listener(move |editor, _e, cx| {
5736 editor.focus(cx);
5737 editor.toggle_code_actions(
5738 &ToggleCodeActions {
5739 deployed_from_indicator: Some(row),
5740 },
5741 cx,
5742 );
5743 }))
5744 }
5745
5746 pub fn context_menu_visible(&self) -> bool {
5747 self.context_menu
5748 .read()
5749 .as_ref()
5750 .map_or(false, |menu| menu.visible())
5751 }
5752
5753 fn render_context_menu(
5754 &self,
5755 cursor_position: DisplayPoint,
5756 style: &EditorStyle,
5757 max_height: Pixels,
5758 cx: &mut ViewContext<Editor>,
5759 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5760 self.context_menu.read().as_ref().map(|menu| {
5761 menu.render(
5762 cursor_position,
5763 style,
5764 max_height,
5765 self.workspace.as_ref().map(|(w, _)| w.clone()),
5766 cx,
5767 )
5768 })
5769 }
5770
5771 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5772 cx.notify();
5773 self.completion_tasks.clear();
5774 let context_menu = self.context_menu.write().take();
5775 if context_menu.is_some() {
5776 self.update_visible_inline_completion(cx);
5777 }
5778 context_menu
5779 }
5780
5781 fn show_snippet_choices(
5782 &mut self,
5783 choices: &Vec<String>,
5784 selection: Range<Anchor>,
5785 cx: &mut ViewContext<Self>,
5786 ) {
5787 if selection.start.buffer_id.is_none() {
5788 return;
5789 }
5790 let buffer_id = selection.start.buffer_id.unwrap();
5791 let buffer = self.buffer().read(cx).buffer(buffer_id);
5792 let id = post_inc(&mut self.next_completion_id);
5793
5794 if let Some(buffer) = buffer {
5795 *self.context_menu.write() = Some(ContextMenu::Completions(
5796 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer)
5797 .suppress_documentation_resolution(),
5798 ));
5799 }
5800 }
5801
5802 pub fn insert_snippet(
5803 &mut self,
5804 insertion_ranges: &[Range<usize>],
5805 snippet: Snippet,
5806 cx: &mut ViewContext<Self>,
5807 ) -> Result<()> {
5808 struct Tabstop<T> {
5809 is_end_tabstop: bool,
5810 ranges: Vec<Range<T>>,
5811 choices: Option<Vec<String>>,
5812 }
5813
5814 let tabstops = self.buffer.update(cx, |buffer, cx| {
5815 let snippet_text: Arc<str> = snippet.text.clone().into();
5816 buffer.edit(
5817 insertion_ranges
5818 .iter()
5819 .cloned()
5820 .map(|range| (range, snippet_text.clone())),
5821 Some(AutoindentMode::EachLine),
5822 cx,
5823 );
5824
5825 let snapshot = &*buffer.read(cx);
5826 let snippet = &snippet;
5827 snippet
5828 .tabstops
5829 .iter()
5830 .map(|tabstop| {
5831 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5832 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5833 });
5834 let mut tabstop_ranges = tabstop
5835 .ranges
5836 .iter()
5837 .flat_map(|tabstop_range| {
5838 let mut delta = 0_isize;
5839 insertion_ranges.iter().map(move |insertion_range| {
5840 let insertion_start = insertion_range.start as isize + delta;
5841 delta +=
5842 snippet.text.len() as isize - insertion_range.len() as isize;
5843
5844 let start = ((insertion_start + tabstop_range.start) as usize)
5845 .min(snapshot.len());
5846 let end = ((insertion_start + tabstop_range.end) as usize)
5847 .min(snapshot.len());
5848 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5849 })
5850 })
5851 .collect::<Vec<_>>();
5852 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5853
5854 Tabstop {
5855 is_end_tabstop,
5856 ranges: tabstop_ranges,
5857 choices: tabstop.choices.clone(),
5858 }
5859 })
5860 .collect::<Vec<_>>()
5861 });
5862 if let Some(tabstop) = tabstops.first() {
5863 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5864 s.select_ranges(tabstop.ranges.iter().cloned());
5865 });
5866
5867 if let Some(choices) = &tabstop.choices {
5868 if let Some(selection) = tabstop.ranges.first() {
5869 self.show_snippet_choices(choices, selection.clone(), cx)
5870 }
5871 }
5872
5873 // If we're already at the last tabstop and it's at the end of the snippet,
5874 // we're done, we don't need to keep the state around.
5875 if !tabstop.is_end_tabstop {
5876 let choices = tabstops
5877 .iter()
5878 .map(|tabstop| tabstop.choices.clone())
5879 .collect();
5880
5881 let ranges = tabstops
5882 .into_iter()
5883 .map(|tabstop| tabstop.ranges)
5884 .collect::<Vec<_>>();
5885
5886 self.snippet_stack.push(SnippetState {
5887 active_index: 0,
5888 ranges,
5889 choices,
5890 });
5891 }
5892
5893 // Check whether the just-entered snippet ends with an auto-closable bracket.
5894 if self.autoclose_regions.is_empty() {
5895 let snapshot = self.buffer.read(cx).snapshot(cx);
5896 for selection in &mut self.selections.all::<Point>(cx) {
5897 let selection_head = selection.head();
5898 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5899 continue;
5900 };
5901
5902 let mut bracket_pair = None;
5903 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5904 let prev_chars = snapshot
5905 .reversed_chars_at(selection_head)
5906 .collect::<String>();
5907 for (pair, enabled) in scope.brackets() {
5908 if enabled
5909 && pair.close
5910 && prev_chars.starts_with(pair.start.as_str())
5911 && next_chars.starts_with(pair.end.as_str())
5912 {
5913 bracket_pair = Some(pair.clone());
5914 break;
5915 }
5916 }
5917 if let Some(pair) = bracket_pair {
5918 let start = snapshot.anchor_after(selection_head);
5919 let end = snapshot.anchor_after(selection_head);
5920 self.autoclose_regions.push(AutocloseRegion {
5921 selection_id: selection.id,
5922 range: start..end,
5923 pair,
5924 });
5925 }
5926 }
5927 }
5928 }
5929 Ok(())
5930 }
5931
5932 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5933 self.move_to_snippet_tabstop(Bias::Right, cx)
5934 }
5935
5936 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5937 self.move_to_snippet_tabstop(Bias::Left, cx)
5938 }
5939
5940 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5941 if let Some(mut snippet) = self.snippet_stack.pop() {
5942 match bias {
5943 Bias::Left => {
5944 if snippet.active_index > 0 {
5945 snippet.active_index -= 1;
5946 } else {
5947 self.snippet_stack.push(snippet);
5948 return false;
5949 }
5950 }
5951 Bias::Right => {
5952 if snippet.active_index + 1 < snippet.ranges.len() {
5953 snippet.active_index += 1;
5954 } else {
5955 self.snippet_stack.push(snippet);
5956 return false;
5957 }
5958 }
5959 }
5960 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5961 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5962 s.select_anchor_ranges(current_ranges.iter().cloned())
5963 });
5964
5965 if let Some(choices) = &snippet.choices[snippet.active_index] {
5966 if let Some(selection) = current_ranges.first() {
5967 self.show_snippet_choices(&choices, selection.clone(), cx);
5968 }
5969 }
5970
5971 // If snippet state is not at the last tabstop, push it back on the stack
5972 if snippet.active_index + 1 < snippet.ranges.len() {
5973 self.snippet_stack.push(snippet);
5974 }
5975 return true;
5976 }
5977 }
5978
5979 false
5980 }
5981
5982 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5983 self.transact(cx, |this, cx| {
5984 this.select_all(&SelectAll, cx);
5985 this.insert("", cx);
5986 });
5987 }
5988
5989 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5990 self.transact(cx, |this, cx| {
5991 this.select_autoclose_pair(cx);
5992 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5993 if !this.linked_edit_ranges.is_empty() {
5994 let selections = this.selections.all::<MultiBufferPoint>(cx);
5995 let snapshot = this.buffer.read(cx).snapshot(cx);
5996
5997 for selection in selections.iter() {
5998 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5999 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
6000 if selection_start.buffer_id != selection_end.buffer_id {
6001 continue;
6002 }
6003 if let Some(ranges) =
6004 this.linked_editing_ranges_for(selection_start..selection_end, cx)
6005 {
6006 for (buffer, entries) in ranges {
6007 linked_ranges.entry(buffer).or_default().extend(entries);
6008 }
6009 }
6010 }
6011 }
6012
6013 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
6014 if !this.selections.line_mode {
6015 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
6016 for selection in &mut selections {
6017 if selection.is_empty() {
6018 let old_head = selection.head();
6019 let mut new_head =
6020 movement::left(&display_map, old_head.to_display_point(&display_map))
6021 .to_point(&display_map);
6022 if let Some((buffer, line_buffer_range)) = display_map
6023 .buffer_snapshot
6024 .buffer_line_for_row(MultiBufferRow(old_head.row))
6025 {
6026 let indent_size =
6027 buffer.indent_size_for_line(line_buffer_range.start.row);
6028 let indent_len = match indent_size.kind {
6029 IndentKind::Space => {
6030 buffer.settings_at(line_buffer_range.start, cx).tab_size
6031 }
6032 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
6033 };
6034 if old_head.column <= indent_size.len && old_head.column > 0 {
6035 let indent_len = indent_len.get();
6036 new_head = cmp::min(
6037 new_head,
6038 MultiBufferPoint::new(
6039 old_head.row,
6040 ((old_head.column - 1) / indent_len) * indent_len,
6041 ),
6042 );
6043 }
6044 }
6045
6046 selection.set_head(new_head, SelectionGoal::None);
6047 }
6048 }
6049 }
6050
6051 this.signature_help_state.set_backspace_pressed(true);
6052 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6053 this.insert("", cx);
6054 let empty_str: Arc<str> = Arc::from("");
6055 for (buffer, edits) in linked_ranges {
6056 let snapshot = buffer.read(cx).snapshot();
6057 use text::ToPoint as TP;
6058
6059 let edits = edits
6060 .into_iter()
6061 .map(|range| {
6062 let end_point = TP::to_point(&range.end, &snapshot);
6063 let mut start_point = TP::to_point(&range.start, &snapshot);
6064
6065 if end_point == start_point {
6066 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
6067 .saturating_sub(1);
6068 start_point = TP::to_point(&offset, &snapshot);
6069 };
6070
6071 (start_point..end_point, empty_str.clone())
6072 })
6073 .sorted_by_key(|(range, _)| range.start)
6074 .collect::<Vec<_>>();
6075 buffer.update(cx, |this, cx| {
6076 this.edit(edits, None, cx);
6077 })
6078 }
6079 this.refresh_inline_completion(true, false, cx);
6080 linked_editing_ranges::refresh_linked_ranges(this, cx);
6081 });
6082 }
6083
6084 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
6085 self.transact(cx, |this, cx| {
6086 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6087 let line_mode = s.line_mode;
6088 s.move_with(|map, selection| {
6089 if selection.is_empty() && !line_mode {
6090 let cursor = movement::right(map, selection.head());
6091 selection.end = cursor;
6092 selection.reversed = true;
6093 selection.goal = SelectionGoal::None;
6094 }
6095 })
6096 });
6097 this.insert("", cx);
6098 this.refresh_inline_completion(true, false, cx);
6099 });
6100 }
6101
6102 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
6103 if self.move_to_prev_snippet_tabstop(cx) {
6104 return;
6105 }
6106
6107 self.outdent(&Outdent, cx);
6108 }
6109
6110 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
6111 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
6112 return;
6113 }
6114
6115 let mut selections = self.selections.all_adjusted(cx);
6116 let buffer = self.buffer.read(cx);
6117 let snapshot = buffer.snapshot(cx);
6118 let rows_iter = selections.iter().map(|s| s.head().row);
6119 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
6120
6121 let mut edits = Vec::new();
6122 let mut prev_edited_row = 0;
6123 let mut row_delta = 0;
6124 for selection in &mut selections {
6125 if selection.start.row != prev_edited_row {
6126 row_delta = 0;
6127 }
6128 prev_edited_row = selection.end.row;
6129
6130 // If the selection is non-empty, then increase the indentation of the selected lines.
6131 if !selection.is_empty() {
6132 row_delta =
6133 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6134 continue;
6135 }
6136
6137 // If the selection is empty and the cursor is in the leading whitespace before the
6138 // suggested indentation, then auto-indent the line.
6139 let cursor = selection.head();
6140 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6141 if let Some(suggested_indent) =
6142 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6143 {
6144 if cursor.column < suggested_indent.len
6145 && cursor.column <= current_indent.len
6146 && current_indent.len <= suggested_indent.len
6147 {
6148 selection.start = Point::new(cursor.row, suggested_indent.len);
6149 selection.end = selection.start;
6150 if row_delta == 0 {
6151 edits.extend(Buffer::edit_for_indent_size_adjustment(
6152 cursor.row,
6153 current_indent,
6154 suggested_indent,
6155 ));
6156 row_delta = suggested_indent.len - current_indent.len;
6157 }
6158 continue;
6159 }
6160 }
6161
6162 // Otherwise, insert a hard or soft tab.
6163 let settings = buffer.settings_at(cursor, cx);
6164 let tab_size = if settings.hard_tabs {
6165 IndentSize::tab()
6166 } else {
6167 let tab_size = settings.tab_size.get();
6168 let char_column = snapshot
6169 .text_for_range(Point::new(cursor.row, 0)..cursor)
6170 .flat_map(str::chars)
6171 .count()
6172 + row_delta as usize;
6173 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6174 IndentSize::spaces(chars_to_next_tab_stop)
6175 };
6176 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6177 selection.end = selection.start;
6178 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6179 row_delta += tab_size.len;
6180 }
6181
6182 self.transact(cx, |this, cx| {
6183 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6184 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6185 this.refresh_inline_completion(true, false, cx);
6186 });
6187 }
6188
6189 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6190 if self.read_only(cx) {
6191 return;
6192 }
6193 let mut selections = self.selections.all::<Point>(cx);
6194 let mut prev_edited_row = 0;
6195 let mut row_delta = 0;
6196 let mut edits = Vec::new();
6197 let buffer = self.buffer.read(cx);
6198 let snapshot = buffer.snapshot(cx);
6199 for selection in &mut selections {
6200 if selection.start.row != prev_edited_row {
6201 row_delta = 0;
6202 }
6203 prev_edited_row = selection.end.row;
6204
6205 row_delta =
6206 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6207 }
6208
6209 self.transact(cx, |this, cx| {
6210 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6211 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6212 });
6213 }
6214
6215 fn indent_selection(
6216 buffer: &MultiBuffer,
6217 snapshot: &MultiBufferSnapshot,
6218 selection: &mut Selection<Point>,
6219 edits: &mut Vec<(Range<Point>, String)>,
6220 delta_for_start_row: u32,
6221 cx: &AppContext,
6222 ) -> u32 {
6223 let settings = buffer.settings_at(selection.start, cx);
6224 let tab_size = settings.tab_size.get();
6225 let indent_kind = if settings.hard_tabs {
6226 IndentKind::Tab
6227 } else {
6228 IndentKind::Space
6229 };
6230 let mut start_row = selection.start.row;
6231 let mut end_row = selection.end.row + 1;
6232
6233 // If a selection ends at the beginning of a line, don't indent
6234 // that last line.
6235 if selection.end.column == 0 && selection.end.row > selection.start.row {
6236 end_row -= 1;
6237 }
6238
6239 // Avoid re-indenting a row that has already been indented by a
6240 // previous selection, but still update this selection's column
6241 // to reflect that indentation.
6242 if delta_for_start_row > 0 {
6243 start_row += 1;
6244 selection.start.column += delta_for_start_row;
6245 if selection.end.row == selection.start.row {
6246 selection.end.column += delta_for_start_row;
6247 }
6248 }
6249
6250 let mut delta_for_end_row = 0;
6251 let has_multiple_rows = start_row + 1 != end_row;
6252 for row in start_row..end_row {
6253 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6254 let indent_delta = match (current_indent.kind, indent_kind) {
6255 (IndentKind::Space, IndentKind::Space) => {
6256 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6257 IndentSize::spaces(columns_to_next_tab_stop)
6258 }
6259 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6260 (_, IndentKind::Tab) => IndentSize::tab(),
6261 };
6262
6263 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6264 0
6265 } else {
6266 selection.start.column
6267 };
6268 let row_start = Point::new(row, start);
6269 edits.push((
6270 row_start..row_start,
6271 indent_delta.chars().collect::<String>(),
6272 ));
6273
6274 // Update this selection's endpoints to reflect the indentation.
6275 if row == selection.start.row {
6276 selection.start.column += indent_delta.len;
6277 }
6278 if row == selection.end.row {
6279 selection.end.column += indent_delta.len;
6280 delta_for_end_row = indent_delta.len;
6281 }
6282 }
6283
6284 if selection.start.row == selection.end.row {
6285 delta_for_start_row + delta_for_end_row
6286 } else {
6287 delta_for_end_row
6288 }
6289 }
6290
6291 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6292 if self.read_only(cx) {
6293 return;
6294 }
6295 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6296 let selections = self.selections.all::<Point>(cx);
6297 let mut deletion_ranges = Vec::new();
6298 let mut last_outdent = None;
6299 {
6300 let buffer = self.buffer.read(cx);
6301 let snapshot = buffer.snapshot(cx);
6302 for selection in &selections {
6303 let settings = buffer.settings_at(selection.start, cx);
6304 let tab_size = settings.tab_size.get();
6305 let mut rows = selection.spanned_rows(false, &display_map);
6306
6307 // Avoid re-outdenting a row that has already been outdented by a
6308 // previous selection.
6309 if let Some(last_row) = last_outdent {
6310 if last_row == rows.start {
6311 rows.start = rows.start.next_row();
6312 }
6313 }
6314 let has_multiple_rows = rows.len() > 1;
6315 for row in rows.iter_rows() {
6316 let indent_size = snapshot.indent_size_for_line(row);
6317 if indent_size.len > 0 {
6318 let deletion_len = match indent_size.kind {
6319 IndentKind::Space => {
6320 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6321 if columns_to_prev_tab_stop == 0 {
6322 tab_size
6323 } else {
6324 columns_to_prev_tab_stop
6325 }
6326 }
6327 IndentKind::Tab => 1,
6328 };
6329 let start = if has_multiple_rows
6330 || deletion_len > selection.start.column
6331 || indent_size.len < selection.start.column
6332 {
6333 0
6334 } else {
6335 selection.start.column - deletion_len
6336 };
6337 deletion_ranges.push(
6338 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6339 );
6340 last_outdent = Some(row);
6341 }
6342 }
6343 }
6344 }
6345
6346 self.transact(cx, |this, cx| {
6347 this.buffer.update(cx, |buffer, cx| {
6348 let empty_str: Arc<str> = Arc::default();
6349 buffer.edit(
6350 deletion_ranges
6351 .into_iter()
6352 .map(|range| (range, empty_str.clone())),
6353 None,
6354 cx,
6355 );
6356 });
6357 let selections = this.selections.all::<usize>(cx);
6358 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6359 });
6360 }
6361
6362 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6363 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6364 let selections = self.selections.all::<Point>(cx);
6365
6366 let mut new_cursors = Vec::new();
6367 let mut edit_ranges = Vec::new();
6368 let mut selections = selections.iter().peekable();
6369 while let Some(selection) = selections.next() {
6370 let mut rows = selection.spanned_rows(false, &display_map);
6371 let goal_display_column = selection.head().to_display_point(&display_map).column();
6372
6373 // Accumulate contiguous regions of rows that we want to delete.
6374 while let Some(next_selection) = selections.peek() {
6375 let next_rows = next_selection.spanned_rows(false, &display_map);
6376 if next_rows.start <= rows.end {
6377 rows.end = next_rows.end;
6378 selections.next().unwrap();
6379 } else {
6380 break;
6381 }
6382 }
6383
6384 let buffer = &display_map.buffer_snapshot;
6385 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6386 let edit_end;
6387 let cursor_buffer_row;
6388 if buffer.max_point().row >= rows.end.0 {
6389 // If there's a line after the range, delete the \n from the end of the row range
6390 // and position the cursor on the next line.
6391 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6392 cursor_buffer_row = rows.end;
6393 } else {
6394 // If there isn't a line after the range, delete the \n from the line before the
6395 // start of the row range and position the cursor there.
6396 edit_start = edit_start.saturating_sub(1);
6397 edit_end = buffer.len();
6398 cursor_buffer_row = rows.start.previous_row();
6399 }
6400
6401 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6402 *cursor.column_mut() =
6403 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6404
6405 new_cursors.push((
6406 selection.id,
6407 buffer.anchor_after(cursor.to_point(&display_map)),
6408 ));
6409 edit_ranges.push(edit_start..edit_end);
6410 }
6411
6412 self.transact(cx, |this, cx| {
6413 let buffer = this.buffer.update(cx, |buffer, cx| {
6414 let empty_str: Arc<str> = Arc::default();
6415 buffer.edit(
6416 edit_ranges
6417 .into_iter()
6418 .map(|range| (range, empty_str.clone())),
6419 None,
6420 cx,
6421 );
6422 buffer.snapshot(cx)
6423 });
6424 let new_selections = new_cursors
6425 .into_iter()
6426 .map(|(id, cursor)| {
6427 let cursor = cursor.to_point(&buffer);
6428 Selection {
6429 id,
6430 start: cursor,
6431 end: cursor,
6432 reversed: false,
6433 goal: SelectionGoal::None,
6434 }
6435 })
6436 .collect();
6437
6438 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6439 s.select(new_selections);
6440 });
6441 });
6442 }
6443
6444 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6445 if self.read_only(cx) {
6446 return;
6447 }
6448 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6449 for selection in self.selections.all::<Point>(cx) {
6450 let start = MultiBufferRow(selection.start.row);
6451 // Treat single line selections as if they include the next line. Otherwise this action
6452 // would do nothing for single line selections individual cursors.
6453 let end = if selection.start.row == selection.end.row {
6454 MultiBufferRow(selection.start.row + 1)
6455 } else {
6456 MultiBufferRow(selection.end.row)
6457 };
6458
6459 if let Some(last_row_range) = row_ranges.last_mut() {
6460 if start <= last_row_range.end {
6461 last_row_range.end = end;
6462 continue;
6463 }
6464 }
6465 row_ranges.push(start..end);
6466 }
6467
6468 let snapshot = self.buffer.read(cx).snapshot(cx);
6469 let mut cursor_positions = Vec::new();
6470 for row_range in &row_ranges {
6471 let anchor = snapshot.anchor_before(Point::new(
6472 row_range.end.previous_row().0,
6473 snapshot.line_len(row_range.end.previous_row()),
6474 ));
6475 cursor_positions.push(anchor..anchor);
6476 }
6477
6478 self.transact(cx, |this, cx| {
6479 for row_range in row_ranges.into_iter().rev() {
6480 for row in row_range.iter_rows().rev() {
6481 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6482 let next_line_row = row.next_row();
6483 let indent = snapshot.indent_size_for_line(next_line_row);
6484 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6485
6486 let replace = if snapshot.line_len(next_line_row) > indent.len {
6487 " "
6488 } else {
6489 ""
6490 };
6491
6492 this.buffer.update(cx, |buffer, cx| {
6493 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6494 });
6495 }
6496 }
6497
6498 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6499 s.select_anchor_ranges(cursor_positions)
6500 });
6501 });
6502 }
6503
6504 pub fn sort_lines_case_sensitive(
6505 &mut self,
6506 _: &SortLinesCaseSensitive,
6507 cx: &mut ViewContext<Self>,
6508 ) {
6509 self.manipulate_lines(cx, |lines| lines.sort())
6510 }
6511
6512 pub fn sort_lines_case_insensitive(
6513 &mut self,
6514 _: &SortLinesCaseInsensitive,
6515 cx: &mut ViewContext<Self>,
6516 ) {
6517 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6518 }
6519
6520 pub fn unique_lines_case_insensitive(
6521 &mut self,
6522 _: &UniqueLinesCaseInsensitive,
6523 cx: &mut ViewContext<Self>,
6524 ) {
6525 self.manipulate_lines(cx, |lines| {
6526 let mut seen = HashSet::default();
6527 lines.retain(|line| seen.insert(line.to_lowercase()));
6528 })
6529 }
6530
6531 pub fn unique_lines_case_sensitive(
6532 &mut self,
6533 _: &UniqueLinesCaseSensitive,
6534 cx: &mut ViewContext<Self>,
6535 ) {
6536 self.manipulate_lines(cx, |lines| {
6537 let mut seen = HashSet::default();
6538 lines.retain(|line| seen.insert(*line));
6539 })
6540 }
6541
6542 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6543 let mut revert_changes = HashMap::default();
6544 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6545 for hunk in hunks_for_rows(
6546 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6547 &multi_buffer_snapshot,
6548 ) {
6549 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6550 }
6551 if !revert_changes.is_empty() {
6552 self.transact(cx, |editor, cx| {
6553 editor.revert(revert_changes, cx);
6554 });
6555 }
6556 }
6557
6558 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6559 let Some(project) = self.project.clone() else {
6560 return;
6561 };
6562 self.reload(project, cx).detach_and_notify_err(cx);
6563 }
6564
6565 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6566 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6567 if !revert_changes.is_empty() {
6568 self.transact(cx, |editor, cx| {
6569 editor.revert(revert_changes, cx);
6570 });
6571 }
6572 }
6573
6574 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6575 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6576 let project_path = buffer.read(cx).project_path(cx)?;
6577 let project = self.project.as_ref()?.read(cx);
6578 let entry = project.entry_for_path(&project_path, cx)?;
6579 let parent = match &entry.canonical_path {
6580 Some(canonical_path) => canonical_path.to_path_buf(),
6581 None => project.absolute_path(&project_path, cx)?,
6582 }
6583 .parent()?
6584 .to_path_buf();
6585 Some(parent)
6586 }) {
6587 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6588 }
6589 }
6590
6591 fn gather_revert_changes(
6592 &mut self,
6593 selections: &[Selection<Anchor>],
6594 cx: &mut ViewContext<'_, Editor>,
6595 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6596 let mut revert_changes = HashMap::default();
6597 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6598 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6599 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6600 }
6601 revert_changes
6602 }
6603
6604 pub fn prepare_revert_change(
6605 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6606 multi_buffer: &Model<MultiBuffer>,
6607 hunk: &MultiBufferDiffHunk,
6608 cx: &AppContext,
6609 ) -> Option<()> {
6610 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6611 let buffer = buffer.read(cx);
6612 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6613 let buffer_snapshot = buffer.snapshot();
6614 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6615 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6616 probe
6617 .0
6618 .start
6619 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6620 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6621 }) {
6622 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6623 Some(())
6624 } else {
6625 None
6626 }
6627 }
6628
6629 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6630 self.manipulate_lines(cx, |lines| lines.reverse())
6631 }
6632
6633 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6634 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6635 }
6636
6637 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6638 where
6639 Fn: FnMut(&mut Vec<&str>),
6640 {
6641 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6642 let buffer = self.buffer.read(cx).snapshot(cx);
6643
6644 let mut edits = Vec::new();
6645
6646 let selections = self.selections.all::<Point>(cx);
6647 let mut selections = selections.iter().peekable();
6648 let mut contiguous_row_selections = Vec::new();
6649 let mut new_selections = Vec::new();
6650 let mut added_lines = 0;
6651 let mut removed_lines = 0;
6652
6653 while let Some(selection) = selections.next() {
6654 let (start_row, end_row) = consume_contiguous_rows(
6655 &mut contiguous_row_selections,
6656 selection,
6657 &display_map,
6658 &mut selections,
6659 );
6660
6661 let start_point = Point::new(start_row.0, 0);
6662 let end_point = Point::new(
6663 end_row.previous_row().0,
6664 buffer.line_len(end_row.previous_row()),
6665 );
6666 let text = buffer
6667 .text_for_range(start_point..end_point)
6668 .collect::<String>();
6669
6670 let mut lines = text.split('\n').collect_vec();
6671
6672 let lines_before = lines.len();
6673 callback(&mut lines);
6674 let lines_after = lines.len();
6675
6676 edits.push((start_point..end_point, lines.join("\n")));
6677
6678 // Selections must change based on added and removed line count
6679 let start_row =
6680 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6681 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6682 new_selections.push(Selection {
6683 id: selection.id,
6684 start: start_row,
6685 end: end_row,
6686 goal: SelectionGoal::None,
6687 reversed: selection.reversed,
6688 });
6689
6690 if lines_after > lines_before {
6691 added_lines += lines_after - lines_before;
6692 } else if lines_before > lines_after {
6693 removed_lines += lines_before - lines_after;
6694 }
6695 }
6696
6697 self.transact(cx, |this, cx| {
6698 let buffer = this.buffer.update(cx, |buffer, cx| {
6699 buffer.edit(edits, None, cx);
6700 buffer.snapshot(cx)
6701 });
6702
6703 // Recalculate offsets on newly edited buffer
6704 let new_selections = new_selections
6705 .iter()
6706 .map(|s| {
6707 let start_point = Point::new(s.start.0, 0);
6708 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6709 Selection {
6710 id: s.id,
6711 start: buffer.point_to_offset(start_point),
6712 end: buffer.point_to_offset(end_point),
6713 goal: s.goal,
6714 reversed: s.reversed,
6715 }
6716 })
6717 .collect();
6718
6719 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6720 s.select(new_selections);
6721 });
6722
6723 this.request_autoscroll(Autoscroll::fit(), cx);
6724 });
6725 }
6726
6727 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6728 self.manipulate_text(cx, |text| text.to_uppercase())
6729 }
6730
6731 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6732 self.manipulate_text(cx, |text| text.to_lowercase())
6733 }
6734
6735 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6736 self.manipulate_text(cx, |text| {
6737 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6738 // https://github.com/rutrum/convert-case/issues/16
6739 text.split('\n')
6740 .map(|line| line.to_case(Case::Title))
6741 .join("\n")
6742 })
6743 }
6744
6745 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6746 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6747 }
6748
6749 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6750 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6751 }
6752
6753 pub fn convert_to_upper_camel_case(
6754 &mut self,
6755 _: &ConvertToUpperCamelCase,
6756 cx: &mut ViewContext<Self>,
6757 ) {
6758 self.manipulate_text(cx, |text| {
6759 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6760 // https://github.com/rutrum/convert-case/issues/16
6761 text.split('\n')
6762 .map(|line| line.to_case(Case::UpperCamel))
6763 .join("\n")
6764 })
6765 }
6766
6767 pub fn convert_to_lower_camel_case(
6768 &mut self,
6769 _: &ConvertToLowerCamelCase,
6770 cx: &mut ViewContext<Self>,
6771 ) {
6772 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6773 }
6774
6775 pub fn convert_to_opposite_case(
6776 &mut self,
6777 _: &ConvertToOppositeCase,
6778 cx: &mut ViewContext<Self>,
6779 ) {
6780 self.manipulate_text(cx, |text| {
6781 text.chars()
6782 .fold(String::with_capacity(text.len()), |mut t, c| {
6783 if c.is_uppercase() {
6784 t.extend(c.to_lowercase());
6785 } else {
6786 t.extend(c.to_uppercase());
6787 }
6788 t
6789 })
6790 })
6791 }
6792
6793 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6794 where
6795 Fn: FnMut(&str) -> String,
6796 {
6797 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6798 let buffer = self.buffer.read(cx).snapshot(cx);
6799
6800 let mut new_selections = Vec::new();
6801 let mut edits = Vec::new();
6802 let mut selection_adjustment = 0i32;
6803
6804 for selection in self.selections.all::<usize>(cx) {
6805 let selection_is_empty = selection.is_empty();
6806
6807 let (start, end) = if selection_is_empty {
6808 let word_range = movement::surrounding_word(
6809 &display_map,
6810 selection.start.to_display_point(&display_map),
6811 );
6812 let start = word_range.start.to_offset(&display_map, Bias::Left);
6813 let end = word_range.end.to_offset(&display_map, Bias::Left);
6814 (start, end)
6815 } else {
6816 (selection.start, selection.end)
6817 };
6818
6819 let text = buffer.text_for_range(start..end).collect::<String>();
6820 let old_length = text.len() as i32;
6821 let text = callback(&text);
6822
6823 new_selections.push(Selection {
6824 start: (start as i32 - selection_adjustment) as usize,
6825 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6826 goal: SelectionGoal::None,
6827 ..selection
6828 });
6829
6830 selection_adjustment += old_length - text.len() as i32;
6831
6832 edits.push((start..end, text));
6833 }
6834
6835 self.transact(cx, |this, cx| {
6836 this.buffer.update(cx, |buffer, cx| {
6837 buffer.edit(edits, None, cx);
6838 });
6839
6840 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6841 s.select(new_selections);
6842 });
6843
6844 this.request_autoscroll(Autoscroll::fit(), cx);
6845 });
6846 }
6847
6848 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6849 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6850 let buffer = &display_map.buffer_snapshot;
6851 let selections = self.selections.all::<Point>(cx);
6852
6853 let mut edits = Vec::new();
6854 let mut selections_iter = selections.iter().peekable();
6855 while let Some(selection) = selections_iter.next() {
6856 // Avoid duplicating the same lines twice.
6857 let mut rows = selection.spanned_rows(false, &display_map);
6858
6859 while let Some(next_selection) = selections_iter.peek() {
6860 let next_rows = next_selection.spanned_rows(false, &display_map);
6861 if next_rows.start < rows.end {
6862 rows.end = next_rows.end;
6863 selections_iter.next().unwrap();
6864 } else {
6865 break;
6866 }
6867 }
6868
6869 // Copy the text from the selected row region and splice it either at the start
6870 // or end of the region.
6871 let start = Point::new(rows.start.0, 0);
6872 let end = Point::new(
6873 rows.end.previous_row().0,
6874 buffer.line_len(rows.end.previous_row()),
6875 );
6876 let text = buffer
6877 .text_for_range(start..end)
6878 .chain(Some("\n"))
6879 .collect::<String>();
6880 let insert_location = if upwards {
6881 Point::new(rows.end.0, 0)
6882 } else {
6883 start
6884 };
6885 edits.push((insert_location..insert_location, text));
6886 }
6887
6888 self.transact(cx, |this, cx| {
6889 this.buffer.update(cx, |buffer, cx| {
6890 buffer.edit(edits, None, cx);
6891 });
6892
6893 this.request_autoscroll(Autoscroll::fit(), cx);
6894 });
6895 }
6896
6897 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6898 self.duplicate_line(true, cx);
6899 }
6900
6901 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6902 self.duplicate_line(false, cx);
6903 }
6904
6905 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6906 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6907 let buffer = self.buffer.read(cx).snapshot(cx);
6908
6909 let mut edits = Vec::new();
6910 let mut unfold_ranges = Vec::new();
6911 let mut refold_creases = Vec::new();
6912
6913 let selections = self.selections.all::<Point>(cx);
6914 let mut selections = selections.iter().peekable();
6915 let mut contiguous_row_selections = Vec::new();
6916 let mut new_selections = Vec::new();
6917
6918 while let Some(selection) = selections.next() {
6919 // Find all the selections that span a contiguous row range
6920 let (start_row, end_row) = consume_contiguous_rows(
6921 &mut contiguous_row_selections,
6922 selection,
6923 &display_map,
6924 &mut selections,
6925 );
6926
6927 // Move the text spanned by the row range to be before the line preceding the row range
6928 if start_row.0 > 0 {
6929 let range_to_move = Point::new(
6930 start_row.previous_row().0,
6931 buffer.line_len(start_row.previous_row()),
6932 )
6933 ..Point::new(
6934 end_row.previous_row().0,
6935 buffer.line_len(end_row.previous_row()),
6936 );
6937 let insertion_point = display_map
6938 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6939 .0;
6940
6941 // Don't move lines across excerpts
6942 if buffer
6943 .excerpt_boundaries_in_range((
6944 Bound::Excluded(insertion_point),
6945 Bound::Included(range_to_move.end),
6946 ))
6947 .next()
6948 .is_none()
6949 {
6950 let text = buffer
6951 .text_for_range(range_to_move.clone())
6952 .flat_map(|s| s.chars())
6953 .skip(1)
6954 .chain(['\n'])
6955 .collect::<String>();
6956
6957 edits.push((
6958 buffer.anchor_after(range_to_move.start)
6959 ..buffer.anchor_before(range_to_move.end),
6960 String::new(),
6961 ));
6962 let insertion_anchor = buffer.anchor_after(insertion_point);
6963 edits.push((insertion_anchor..insertion_anchor, text));
6964
6965 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6966
6967 // Move selections up
6968 new_selections.extend(contiguous_row_selections.drain(..).map(
6969 |mut selection| {
6970 selection.start.row -= row_delta;
6971 selection.end.row -= row_delta;
6972 selection
6973 },
6974 ));
6975
6976 // Move folds up
6977 unfold_ranges.push(range_to_move.clone());
6978 for fold in display_map.folds_in_range(
6979 buffer.anchor_before(range_to_move.start)
6980 ..buffer.anchor_after(range_to_move.end),
6981 ) {
6982 let mut start = fold.range.start.to_point(&buffer);
6983 let mut end = fold.range.end.to_point(&buffer);
6984 start.row -= row_delta;
6985 end.row -= row_delta;
6986 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6987 }
6988 }
6989 }
6990
6991 // If we didn't move line(s), preserve the existing selections
6992 new_selections.append(&mut contiguous_row_selections);
6993 }
6994
6995 self.transact(cx, |this, cx| {
6996 this.unfold_ranges(&unfold_ranges, true, true, cx);
6997 this.buffer.update(cx, |buffer, cx| {
6998 for (range, text) in edits {
6999 buffer.edit([(range, text)], None, cx);
7000 }
7001 });
7002 this.fold_creases(refold_creases, true, cx);
7003 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7004 s.select(new_selections);
7005 })
7006 });
7007 }
7008
7009 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
7010 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7011 let buffer = self.buffer.read(cx).snapshot(cx);
7012
7013 let mut edits = Vec::new();
7014 let mut unfold_ranges = Vec::new();
7015 let mut refold_creases = Vec::new();
7016
7017 let selections = self.selections.all::<Point>(cx);
7018 let mut selections = selections.iter().peekable();
7019 let mut contiguous_row_selections = Vec::new();
7020 let mut new_selections = Vec::new();
7021
7022 while let Some(selection) = selections.next() {
7023 // Find all the selections that span a contiguous row range
7024 let (start_row, end_row) = consume_contiguous_rows(
7025 &mut contiguous_row_selections,
7026 selection,
7027 &display_map,
7028 &mut selections,
7029 );
7030
7031 // Move the text spanned by the row range to be after the last line of the row range
7032 if end_row.0 <= buffer.max_point().row {
7033 let range_to_move =
7034 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
7035 let insertion_point = display_map
7036 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
7037 .0;
7038
7039 // Don't move lines across excerpt boundaries
7040 if buffer
7041 .excerpt_boundaries_in_range((
7042 Bound::Excluded(range_to_move.start),
7043 Bound::Included(insertion_point),
7044 ))
7045 .next()
7046 .is_none()
7047 {
7048 let mut text = String::from("\n");
7049 text.extend(buffer.text_for_range(range_to_move.clone()));
7050 text.pop(); // Drop trailing newline
7051 edits.push((
7052 buffer.anchor_after(range_to_move.start)
7053 ..buffer.anchor_before(range_to_move.end),
7054 String::new(),
7055 ));
7056 let insertion_anchor = buffer.anchor_after(insertion_point);
7057 edits.push((insertion_anchor..insertion_anchor, text));
7058
7059 let row_delta = insertion_point.row - range_to_move.end.row + 1;
7060
7061 // Move selections down
7062 new_selections.extend(contiguous_row_selections.drain(..).map(
7063 |mut selection| {
7064 selection.start.row += row_delta;
7065 selection.end.row += row_delta;
7066 selection
7067 },
7068 ));
7069
7070 // Move folds down
7071 unfold_ranges.push(range_to_move.clone());
7072 for fold in display_map.folds_in_range(
7073 buffer.anchor_before(range_to_move.start)
7074 ..buffer.anchor_after(range_to_move.end),
7075 ) {
7076 let mut start = fold.range.start.to_point(&buffer);
7077 let mut end = fold.range.end.to_point(&buffer);
7078 start.row += row_delta;
7079 end.row += row_delta;
7080 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7081 }
7082 }
7083 }
7084
7085 // If we didn't move line(s), preserve the existing selections
7086 new_selections.append(&mut contiguous_row_selections);
7087 }
7088
7089 self.transact(cx, |this, cx| {
7090 this.unfold_ranges(&unfold_ranges, true, true, cx);
7091 this.buffer.update(cx, |buffer, cx| {
7092 for (range, text) in edits {
7093 buffer.edit([(range, text)], None, cx);
7094 }
7095 });
7096 this.fold_creases(refold_creases, true, cx);
7097 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
7098 });
7099 }
7100
7101 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
7102 let text_layout_details = &self.text_layout_details(cx);
7103 self.transact(cx, |this, cx| {
7104 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7105 let mut edits: Vec<(Range<usize>, String)> = Default::default();
7106 let line_mode = s.line_mode;
7107 s.move_with(|display_map, selection| {
7108 if !selection.is_empty() || line_mode {
7109 return;
7110 }
7111
7112 let mut head = selection.head();
7113 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
7114 if head.column() == display_map.line_len(head.row()) {
7115 transpose_offset = display_map
7116 .buffer_snapshot
7117 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7118 }
7119
7120 if transpose_offset == 0 {
7121 return;
7122 }
7123
7124 *head.column_mut() += 1;
7125 head = display_map.clip_point(head, Bias::Right);
7126 let goal = SelectionGoal::HorizontalPosition(
7127 display_map
7128 .x_for_display_point(head, text_layout_details)
7129 .into(),
7130 );
7131 selection.collapse_to(head, goal);
7132
7133 let transpose_start = display_map
7134 .buffer_snapshot
7135 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7136 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7137 let transpose_end = display_map
7138 .buffer_snapshot
7139 .clip_offset(transpose_offset + 1, Bias::Right);
7140 if let Some(ch) =
7141 display_map.buffer_snapshot.chars_at(transpose_start).next()
7142 {
7143 edits.push((transpose_start..transpose_offset, String::new()));
7144 edits.push((transpose_end..transpose_end, ch.to_string()));
7145 }
7146 }
7147 });
7148 edits
7149 });
7150 this.buffer
7151 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7152 let selections = this.selections.all::<usize>(cx);
7153 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7154 s.select(selections);
7155 });
7156 });
7157 }
7158
7159 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
7160 self.rewrap_impl(IsVimMode::No, cx)
7161 }
7162
7163 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
7164 let buffer = self.buffer.read(cx).snapshot(cx);
7165 let selections = self.selections.all::<Point>(cx);
7166 let mut selections = selections.iter().peekable();
7167
7168 let mut edits = Vec::new();
7169 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7170
7171 while let Some(selection) = selections.next() {
7172 let mut start_row = selection.start.row;
7173 let mut end_row = selection.end.row;
7174
7175 // Skip selections that overlap with a range that has already been rewrapped.
7176 let selection_range = start_row..end_row;
7177 if rewrapped_row_ranges
7178 .iter()
7179 .any(|range| range.overlaps(&selection_range))
7180 {
7181 continue;
7182 }
7183
7184 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
7185
7186 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7187 match language_scope.language_name().0.as_ref() {
7188 "Markdown" | "Plain Text" => {
7189 should_rewrap = true;
7190 }
7191 _ => {}
7192 }
7193 }
7194
7195 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7196
7197 // Since not all lines in the selection may be at the same indent
7198 // level, choose the indent size that is the most common between all
7199 // of the lines.
7200 //
7201 // If there is a tie, we use the deepest indent.
7202 let (indent_size, indent_end) = {
7203 let mut indent_size_occurrences = HashMap::default();
7204 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7205
7206 for row in start_row..=end_row {
7207 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7208 rows_by_indent_size.entry(indent).or_default().push(row);
7209 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7210 }
7211
7212 let indent_size = indent_size_occurrences
7213 .into_iter()
7214 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7215 .map(|(indent, _)| indent)
7216 .unwrap_or_default();
7217 let row = rows_by_indent_size[&indent_size][0];
7218 let indent_end = Point::new(row, indent_size.len);
7219
7220 (indent_size, indent_end)
7221 };
7222
7223 let mut line_prefix = indent_size.chars().collect::<String>();
7224
7225 if let Some(comment_prefix) =
7226 buffer
7227 .language_scope_at(selection.head())
7228 .and_then(|language| {
7229 language
7230 .line_comment_prefixes()
7231 .iter()
7232 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7233 .cloned()
7234 })
7235 {
7236 line_prefix.push_str(&comment_prefix);
7237 should_rewrap = true;
7238 }
7239
7240 if !should_rewrap {
7241 continue;
7242 }
7243
7244 if selection.is_empty() {
7245 'expand_upwards: while start_row > 0 {
7246 let prev_row = start_row - 1;
7247 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7248 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7249 {
7250 start_row = prev_row;
7251 } else {
7252 break 'expand_upwards;
7253 }
7254 }
7255
7256 'expand_downwards: while end_row < buffer.max_point().row {
7257 let next_row = end_row + 1;
7258 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7259 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7260 {
7261 end_row = next_row;
7262 } else {
7263 break 'expand_downwards;
7264 }
7265 }
7266 }
7267
7268 let start = Point::new(start_row, 0);
7269 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7270 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7271 let Some(lines_without_prefixes) = selection_text
7272 .lines()
7273 .map(|line| {
7274 line.strip_prefix(&line_prefix)
7275 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7276 .ok_or_else(|| {
7277 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7278 })
7279 })
7280 .collect::<Result<Vec<_>, _>>()
7281 .log_err()
7282 else {
7283 continue;
7284 };
7285
7286 let wrap_column = buffer
7287 .settings_at(Point::new(start_row, 0), cx)
7288 .preferred_line_length as usize;
7289 let wrapped_text = wrap_with_prefix(
7290 line_prefix,
7291 lines_without_prefixes.join(" "),
7292 wrap_column,
7293 tab_size,
7294 );
7295
7296 // TODO: should always use char-based diff while still supporting cursor behavior that
7297 // matches vim.
7298 let diff = match is_vim_mode {
7299 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
7300 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
7301 };
7302 let mut offset = start.to_offset(&buffer);
7303 let mut moved_since_edit = true;
7304
7305 for change in diff.iter_all_changes() {
7306 let value = change.value();
7307 match change.tag() {
7308 ChangeTag::Equal => {
7309 offset += value.len();
7310 moved_since_edit = true;
7311 }
7312 ChangeTag::Delete => {
7313 let start = buffer.anchor_after(offset);
7314 let end = buffer.anchor_before(offset + value.len());
7315
7316 if moved_since_edit {
7317 edits.push((start..end, String::new()));
7318 } else {
7319 edits.last_mut().unwrap().0.end = end;
7320 }
7321
7322 offset += value.len();
7323 moved_since_edit = false;
7324 }
7325 ChangeTag::Insert => {
7326 if moved_since_edit {
7327 let anchor = buffer.anchor_after(offset);
7328 edits.push((anchor..anchor, value.to_string()));
7329 } else {
7330 edits.last_mut().unwrap().1.push_str(value);
7331 }
7332
7333 moved_since_edit = false;
7334 }
7335 }
7336 }
7337
7338 rewrapped_row_ranges.push(start_row..=end_row);
7339 }
7340
7341 self.buffer
7342 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7343 }
7344
7345 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
7346 let mut text = String::new();
7347 let buffer = self.buffer.read(cx).snapshot(cx);
7348 let mut selections = self.selections.all::<Point>(cx);
7349 let mut clipboard_selections = Vec::with_capacity(selections.len());
7350 {
7351 let max_point = buffer.max_point();
7352 let mut is_first = true;
7353 for selection in &mut selections {
7354 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7355 if is_entire_line {
7356 selection.start = Point::new(selection.start.row, 0);
7357 if !selection.is_empty() && selection.end.column == 0 {
7358 selection.end = cmp::min(max_point, selection.end);
7359 } else {
7360 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7361 }
7362 selection.goal = SelectionGoal::None;
7363 }
7364 if is_first {
7365 is_first = false;
7366 } else {
7367 text += "\n";
7368 }
7369 let mut len = 0;
7370 for chunk in buffer.text_for_range(selection.start..selection.end) {
7371 text.push_str(chunk);
7372 len += chunk.len();
7373 }
7374 clipboard_selections.push(ClipboardSelection {
7375 len,
7376 is_entire_line,
7377 first_line_indent: buffer
7378 .indent_size_for_line(MultiBufferRow(selection.start.row))
7379 .len,
7380 });
7381 }
7382 }
7383
7384 self.transact(cx, |this, cx| {
7385 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7386 s.select(selections);
7387 });
7388 this.insert("", cx);
7389 });
7390 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
7391 }
7392
7393 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7394 let item = self.cut_common(cx);
7395 cx.write_to_clipboard(item);
7396 }
7397
7398 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
7399 self.change_selections(None, cx, |s| {
7400 s.move_with(|snapshot, sel| {
7401 if sel.is_empty() {
7402 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
7403 }
7404 });
7405 });
7406 let item = self.cut_common(cx);
7407 cx.set_global(KillRing(item))
7408 }
7409
7410 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
7411 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
7412 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
7413 (kill_ring.text().to_string(), kill_ring.metadata_json())
7414 } else {
7415 return;
7416 }
7417 } else {
7418 return;
7419 };
7420 self.do_paste(&text, metadata, false, cx);
7421 }
7422
7423 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7424 let selections = self.selections.all::<Point>(cx);
7425 let buffer = self.buffer.read(cx).read(cx);
7426 let mut text = String::new();
7427
7428 let mut clipboard_selections = Vec::with_capacity(selections.len());
7429 {
7430 let max_point = buffer.max_point();
7431 let mut is_first = true;
7432 for selection in selections.iter() {
7433 let mut start = selection.start;
7434 let mut end = selection.end;
7435 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7436 if is_entire_line {
7437 start = Point::new(start.row, 0);
7438 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7439 }
7440 if is_first {
7441 is_first = false;
7442 } else {
7443 text += "\n";
7444 }
7445 let mut len = 0;
7446 for chunk in buffer.text_for_range(start..end) {
7447 text.push_str(chunk);
7448 len += chunk.len();
7449 }
7450 clipboard_selections.push(ClipboardSelection {
7451 len,
7452 is_entire_line,
7453 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7454 });
7455 }
7456 }
7457
7458 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7459 text,
7460 clipboard_selections,
7461 ));
7462 }
7463
7464 pub fn do_paste(
7465 &mut self,
7466 text: &String,
7467 clipboard_selections: Option<Vec<ClipboardSelection>>,
7468 handle_entire_lines: bool,
7469 cx: &mut ViewContext<Self>,
7470 ) {
7471 if self.read_only(cx) {
7472 return;
7473 }
7474
7475 let clipboard_text = Cow::Borrowed(text);
7476
7477 self.transact(cx, |this, cx| {
7478 if let Some(mut clipboard_selections) = clipboard_selections {
7479 let old_selections = this.selections.all::<usize>(cx);
7480 let all_selections_were_entire_line =
7481 clipboard_selections.iter().all(|s| s.is_entire_line);
7482 let first_selection_indent_column =
7483 clipboard_selections.first().map(|s| s.first_line_indent);
7484 if clipboard_selections.len() != old_selections.len() {
7485 clipboard_selections.drain(..);
7486 }
7487 let cursor_offset = this.selections.last::<usize>(cx).head();
7488 let mut auto_indent_on_paste = true;
7489
7490 this.buffer.update(cx, |buffer, cx| {
7491 let snapshot = buffer.read(cx);
7492 auto_indent_on_paste =
7493 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7494
7495 let mut start_offset = 0;
7496 let mut edits = Vec::new();
7497 let mut original_indent_columns = Vec::new();
7498 for (ix, selection) in old_selections.iter().enumerate() {
7499 let to_insert;
7500 let entire_line;
7501 let original_indent_column;
7502 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7503 let end_offset = start_offset + clipboard_selection.len;
7504 to_insert = &clipboard_text[start_offset..end_offset];
7505 entire_line = clipboard_selection.is_entire_line;
7506 start_offset = end_offset + 1;
7507 original_indent_column = Some(clipboard_selection.first_line_indent);
7508 } else {
7509 to_insert = clipboard_text.as_str();
7510 entire_line = all_selections_were_entire_line;
7511 original_indent_column = first_selection_indent_column
7512 }
7513
7514 // If the corresponding selection was empty when this slice of the
7515 // clipboard text was written, then the entire line containing the
7516 // selection was copied. If this selection is also currently empty,
7517 // then paste the line before the current line of the buffer.
7518 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7519 let column = selection.start.to_point(&snapshot).column as usize;
7520 let line_start = selection.start - column;
7521 line_start..line_start
7522 } else {
7523 selection.range()
7524 };
7525
7526 edits.push((range, to_insert));
7527 original_indent_columns.extend(original_indent_column);
7528 }
7529 drop(snapshot);
7530
7531 buffer.edit(
7532 edits,
7533 if auto_indent_on_paste {
7534 Some(AutoindentMode::Block {
7535 original_indent_columns,
7536 })
7537 } else {
7538 None
7539 },
7540 cx,
7541 );
7542 });
7543
7544 let selections = this.selections.all::<usize>(cx);
7545 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7546 } else {
7547 this.insert(&clipboard_text, cx);
7548 }
7549 });
7550 }
7551
7552 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7553 if let Some(item) = cx.read_from_clipboard() {
7554 let entries = item.entries();
7555
7556 match entries.first() {
7557 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7558 // of all the pasted entries.
7559 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7560 .do_paste(
7561 clipboard_string.text(),
7562 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7563 true,
7564 cx,
7565 ),
7566 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7567 }
7568 }
7569 }
7570
7571 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7572 if self.read_only(cx) {
7573 return;
7574 }
7575
7576 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7577 if let Some((selections, _)) =
7578 self.selection_history.transaction(transaction_id).cloned()
7579 {
7580 self.change_selections(None, cx, |s| {
7581 s.select_anchors(selections.to_vec());
7582 });
7583 }
7584 self.request_autoscroll(Autoscroll::fit(), cx);
7585 self.unmark_text(cx);
7586 self.refresh_inline_completion(true, false, cx);
7587 cx.emit(EditorEvent::Edited { transaction_id });
7588 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7589 }
7590 }
7591
7592 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7593 if self.read_only(cx) {
7594 return;
7595 }
7596
7597 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7598 if let Some((_, Some(selections))) =
7599 self.selection_history.transaction(transaction_id).cloned()
7600 {
7601 self.change_selections(None, cx, |s| {
7602 s.select_anchors(selections.to_vec());
7603 });
7604 }
7605 self.request_autoscroll(Autoscroll::fit(), cx);
7606 self.unmark_text(cx);
7607 self.refresh_inline_completion(true, false, cx);
7608 cx.emit(EditorEvent::Edited { transaction_id });
7609 }
7610 }
7611
7612 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7613 self.buffer
7614 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7615 }
7616
7617 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7618 self.buffer
7619 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7620 }
7621
7622 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7623 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7624 let line_mode = s.line_mode;
7625 s.move_with(|map, selection| {
7626 let cursor = if selection.is_empty() && !line_mode {
7627 movement::left(map, selection.start)
7628 } else {
7629 selection.start
7630 };
7631 selection.collapse_to(cursor, SelectionGoal::None);
7632 });
7633 })
7634 }
7635
7636 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7637 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7638 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7639 })
7640 }
7641
7642 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7643 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7644 let line_mode = s.line_mode;
7645 s.move_with(|map, selection| {
7646 let cursor = if selection.is_empty() && !line_mode {
7647 movement::right(map, selection.end)
7648 } else {
7649 selection.end
7650 };
7651 selection.collapse_to(cursor, SelectionGoal::None)
7652 });
7653 })
7654 }
7655
7656 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7657 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7658 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7659 })
7660 }
7661
7662 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7663 if self.take_rename(true, cx).is_some() {
7664 return;
7665 }
7666
7667 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7668 cx.propagate();
7669 return;
7670 }
7671
7672 let text_layout_details = &self.text_layout_details(cx);
7673 let selection_count = self.selections.count();
7674 let first_selection = self.selections.first_anchor();
7675
7676 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7677 let line_mode = s.line_mode;
7678 s.move_with(|map, selection| {
7679 if !selection.is_empty() && !line_mode {
7680 selection.goal = SelectionGoal::None;
7681 }
7682 let (cursor, goal) = movement::up(
7683 map,
7684 selection.start,
7685 selection.goal,
7686 false,
7687 text_layout_details,
7688 );
7689 selection.collapse_to(cursor, goal);
7690 });
7691 });
7692
7693 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7694 {
7695 cx.propagate();
7696 }
7697 }
7698
7699 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7700 if self.take_rename(true, cx).is_some() {
7701 return;
7702 }
7703
7704 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7705 cx.propagate();
7706 return;
7707 }
7708
7709 let text_layout_details = &self.text_layout_details(cx);
7710
7711 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7712 let line_mode = s.line_mode;
7713 s.move_with(|map, selection| {
7714 if !selection.is_empty() && !line_mode {
7715 selection.goal = SelectionGoal::None;
7716 }
7717 let (cursor, goal) = movement::up_by_rows(
7718 map,
7719 selection.start,
7720 action.lines,
7721 selection.goal,
7722 false,
7723 text_layout_details,
7724 );
7725 selection.collapse_to(cursor, goal);
7726 });
7727 })
7728 }
7729
7730 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7731 if self.take_rename(true, cx).is_some() {
7732 return;
7733 }
7734
7735 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7736 cx.propagate();
7737 return;
7738 }
7739
7740 let text_layout_details = &self.text_layout_details(cx);
7741
7742 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7743 let line_mode = s.line_mode;
7744 s.move_with(|map, selection| {
7745 if !selection.is_empty() && !line_mode {
7746 selection.goal = SelectionGoal::None;
7747 }
7748 let (cursor, goal) = movement::down_by_rows(
7749 map,
7750 selection.start,
7751 action.lines,
7752 selection.goal,
7753 false,
7754 text_layout_details,
7755 );
7756 selection.collapse_to(cursor, goal);
7757 });
7758 })
7759 }
7760
7761 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7762 let text_layout_details = &self.text_layout_details(cx);
7763 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7764 s.move_heads_with(|map, head, goal| {
7765 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7766 })
7767 })
7768 }
7769
7770 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7771 let text_layout_details = &self.text_layout_details(cx);
7772 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7773 s.move_heads_with(|map, head, goal| {
7774 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7775 })
7776 })
7777 }
7778
7779 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7780 let Some(row_count) = self.visible_row_count() else {
7781 return;
7782 };
7783
7784 let text_layout_details = &self.text_layout_details(cx);
7785
7786 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7787 s.move_heads_with(|map, head, goal| {
7788 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7789 })
7790 })
7791 }
7792
7793 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7794 if self.take_rename(true, cx).is_some() {
7795 return;
7796 }
7797
7798 if self
7799 .context_menu
7800 .write()
7801 .as_mut()
7802 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7803 .unwrap_or(false)
7804 {
7805 return;
7806 }
7807
7808 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7809 cx.propagate();
7810 return;
7811 }
7812
7813 let Some(row_count) = self.visible_row_count() else {
7814 return;
7815 };
7816
7817 let autoscroll = if action.center_cursor {
7818 Autoscroll::center()
7819 } else {
7820 Autoscroll::fit()
7821 };
7822
7823 let text_layout_details = &self.text_layout_details(cx);
7824
7825 self.change_selections(Some(autoscroll), cx, |s| {
7826 let line_mode = s.line_mode;
7827 s.move_with(|map, selection| {
7828 if !selection.is_empty() && !line_mode {
7829 selection.goal = SelectionGoal::None;
7830 }
7831 let (cursor, goal) = movement::up_by_rows(
7832 map,
7833 selection.end,
7834 row_count,
7835 selection.goal,
7836 false,
7837 text_layout_details,
7838 );
7839 selection.collapse_to(cursor, goal);
7840 });
7841 });
7842 }
7843
7844 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7845 let text_layout_details = &self.text_layout_details(cx);
7846 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7847 s.move_heads_with(|map, head, goal| {
7848 movement::up(map, head, goal, false, text_layout_details)
7849 })
7850 })
7851 }
7852
7853 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7854 self.take_rename(true, cx);
7855
7856 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7857 cx.propagate();
7858 return;
7859 }
7860
7861 let text_layout_details = &self.text_layout_details(cx);
7862 let selection_count = self.selections.count();
7863 let first_selection = self.selections.first_anchor();
7864
7865 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7866 let line_mode = s.line_mode;
7867 s.move_with(|map, selection| {
7868 if !selection.is_empty() && !line_mode {
7869 selection.goal = SelectionGoal::None;
7870 }
7871 let (cursor, goal) = movement::down(
7872 map,
7873 selection.end,
7874 selection.goal,
7875 false,
7876 text_layout_details,
7877 );
7878 selection.collapse_to(cursor, goal);
7879 });
7880 });
7881
7882 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7883 {
7884 cx.propagate();
7885 }
7886 }
7887
7888 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7889 let Some(row_count) = self.visible_row_count() else {
7890 return;
7891 };
7892
7893 let text_layout_details = &self.text_layout_details(cx);
7894
7895 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7896 s.move_heads_with(|map, head, goal| {
7897 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7898 })
7899 })
7900 }
7901
7902 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7903 if self.take_rename(true, cx).is_some() {
7904 return;
7905 }
7906
7907 if self
7908 .context_menu
7909 .write()
7910 .as_mut()
7911 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7912 .unwrap_or(false)
7913 {
7914 return;
7915 }
7916
7917 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7918 cx.propagate();
7919 return;
7920 }
7921
7922 let Some(row_count) = self.visible_row_count() else {
7923 return;
7924 };
7925
7926 let autoscroll = if action.center_cursor {
7927 Autoscroll::center()
7928 } else {
7929 Autoscroll::fit()
7930 };
7931
7932 let text_layout_details = &self.text_layout_details(cx);
7933 self.change_selections(Some(autoscroll), cx, |s| {
7934 let line_mode = s.line_mode;
7935 s.move_with(|map, selection| {
7936 if !selection.is_empty() && !line_mode {
7937 selection.goal = SelectionGoal::None;
7938 }
7939 let (cursor, goal) = movement::down_by_rows(
7940 map,
7941 selection.end,
7942 row_count,
7943 selection.goal,
7944 false,
7945 text_layout_details,
7946 );
7947 selection.collapse_to(cursor, goal);
7948 });
7949 });
7950 }
7951
7952 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7953 let text_layout_details = &self.text_layout_details(cx);
7954 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7955 s.move_heads_with(|map, head, goal| {
7956 movement::down(map, head, goal, false, text_layout_details)
7957 })
7958 });
7959 }
7960
7961 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7962 if let Some(context_menu) = self.context_menu.write().as_mut() {
7963 context_menu.select_first(self.completion_provider.as_deref(), cx);
7964 }
7965 }
7966
7967 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7968 if let Some(context_menu) = self.context_menu.write().as_mut() {
7969 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7970 }
7971 }
7972
7973 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7974 if let Some(context_menu) = self.context_menu.write().as_mut() {
7975 context_menu.select_next(self.completion_provider.as_deref(), cx);
7976 }
7977 }
7978
7979 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7980 if let Some(context_menu) = self.context_menu.write().as_mut() {
7981 context_menu.select_last(self.completion_provider.as_deref(), cx);
7982 }
7983 }
7984
7985 pub fn move_to_previous_word_start(
7986 &mut self,
7987 _: &MoveToPreviousWordStart,
7988 cx: &mut ViewContext<Self>,
7989 ) {
7990 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7991 s.move_cursors_with(|map, head, _| {
7992 (
7993 movement::previous_word_start(map, head),
7994 SelectionGoal::None,
7995 )
7996 });
7997 })
7998 }
7999
8000 pub fn move_to_previous_subword_start(
8001 &mut self,
8002 _: &MoveToPreviousSubwordStart,
8003 cx: &mut ViewContext<Self>,
8004 ) {
8005 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8006 s.move_cursors_with(|map, head, _| {
8007 (
8008 movement::previous_subword_start(map, head),
8009 SelectionGoal::None,
8010 )
8011 });
8012 })
8013 }
8014
8015 pub fn select_to_previous_word_start(
8016 &mut self,
8017 _: &SelectToPreviousWordStart,
8018 cx: &mut ViewContext<Self>,
8019 ) {
8020 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8021 s.move_heads_with(|map, head, _| {
8022 (
8023 movement::previous_word_start(map, head),
8024 SelectionGoal::None,
8025 )
8026 });
8027 })
8028 }
8029
8030 pub fn select_to_previous_subword_start(
8031 &mut self,
8032 _: &SelectToPreviousSubwordStart,
8033 cx: &mut ViewContext<Self>,
8034 ) {
8035 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8036 s.move_heads_with(|map, head, _| {
8037 (
8038 movement::previous_subword_start(map, head),
8039 SelectionGoal::None,
8040 )
8041 });
8042 })
8043 }
8044
8045 pub fn delete_to_previous_word_start(
8046 &mut self,
8047 action: &DeleteToPreviousWordStart,
8048 cx: &mut ViewContext<Self>,
8049 ) {
8050 self.transact(cx, |this, cx| {
8051 this.select_autoclose_pair(cx);
8052 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8053 let line_mode = s.line_mode;
8054 s.move_with(|map, selection| {
8055 if selection.is_empty() && !line_mode {
8056 let cursor = if action.ignore_newlines {
8057 movement::previous_word_start(map, selection.head())
8058 } else {
8059 movement::previous_word_start_or_newline(map, selection.head())
8060 };
8061 selection.set_head(cursor, SelectionGoal::None);
8062 }
8063 });
8064 });
8065 this.insert("", cx);
8066 });
8067 }
8068
8069 pub fn delete_to_previous_subword_start(
8070 &mut self,
8071 _: &DeleteToPreviousSubwordStart,
8072 cx: &mut ViewContext<Self>,
8073 ) {
8074 self.transact(cx, |this, cx| {
8075 this.select_autoclose_pair(cx);
8076 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8077 let line_mode = s.line_mode;
8078 s.move_with(|map, selection| {
8079 if selection.is_empty() && !line_mode {
8080 let cursor = movement::previous_subword_start(map, selection.head());
8081 selection.set_head(cursor, SelectionGoal::None);
8082 }
8083 });
8084 });
8085 this.insert("", cx);
8086 });
8087 }
8088
8089 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
8090 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8091 s.move_cursors_with(|map, head, _| {
8092 (movement::next_word_end(map, head), SelectionGoal::None)
8093 });
8094 })
8095 }
8096
8097 pub fn move_to_next_subword_end(
8098 &mut self,
8099 _: &MoveToNextSubwordEnd,
8100 cx: &mut ViewContext<Self>,
8101 ) {
8102 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8103 s.move_cursors_with(|map, head, _| {
8104 (movement::next_subword_end(map, head), SelectionGoal::None)
8105 });
8106 })
8107 }
8108
8109 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
8110 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8111 s.move_heads_with(|map, head, _| {
8112 (movement::next_word_end(map, head), SelectionGoal::None)
8113 });
8114 })
8115 }
8116
8117 pub fn select_to_next_subword_end(
8118 &mut self,
8119 _: &SelectToNextSubwordEnd,
8120 cx: &mut ViewContext<Self>,
8121 ) {
8122 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8123 s.move_heads_with(|map, head, _| {
8124 (movement::next_subword_end(map, head), SelectionGoal::None)
8125 });
8126 })
8127 }
8128
8129 pub fn delete_to_next_word_end(
8130 &mut self,
8131 action: &DeleteToNextWordEnd,
8132 cx: &mut ViewContext<Self>,
8133 ) {
8134 self.transact(cx, |this, cx| {
8135 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8136 let line_mode = s.line_mode;
8137 s.move_with(|map, selection| {
8138 if selection.is_empty() && !line_mode {
8139 let cursor = if action.ignore_newlines {
8140 movement::next_word_end(map, selection.head())
8141 } else {
8142 movement::next_word_end_or_newline(map, selection.head())
8143 };
8144 selection.set_head(cursor, SelectionGoal::None);
8145 }
8146 });
8147 });
8148 this.insert("", cx);
8149 });
8150 }
8151
8152 pub fn delete_to_next_subword_end(
8153 &mut self,
8154 _: &DeleteToNextSubwordEnd,
8155 cx: &mut ViewContext<Self>,
8156 ) {
8157 self.transact(cx, |this, cx| {
8158 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8159 s.move_with(|map, selection| {
8160 if selection.is_empty() {
8161 let cursor = movement::next_subword_end(map, selection.head());
8162 selection.set_head(cursor, SelectionGoal::None);
8163 }
8164 });
8165 });
8166 this.insert("", cx);
8167 });
8168 }
8169
8170 pub fn move_to_beginning_of_line(
8171 &mut self,
8172 action: &MoveToBeginningOfLine,
8173 cx: &mut ViewContext<Self>,
8174 ) {
8175 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8176 s.move_cursors_with(|map, head, _| {
8177 (
8178 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8179 SelectionGoal::None,
8180 )
8181 });
8182 })
8183 }
8184
8185 pub fn select_to_beginning_of_line(
8186 &mut self,
8187 action: &SelectToBeginningOfLine,
8188 cx: &mut ViewContext<Self>,
8189 ) {
8190 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8191 s.move_heads_with(|map, head, _| {
8192 (
8193 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8194 SelectionGoal::None,
8195 )
8196 });
8197 });
8198 }
8199
8200 pub fn delete_to_beginning_of_line(
8201 &mut self,
8202 _: &DeleteToBeginningOfLine,
8203 cx: &mut ViewContext<Self>,
8204 ) {
8205 self.transact(cx, |this, cx| {
8206 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8207 s.move_with(|_, selection| {
8208 selection.reversed = true;
8209 });
8210 });
8211
8212 this.select_to_beginning_of_line(
8213 &SelectToBeginningOfLine {
8214 stop_at_soft_wraps: false,
8215 },
8216 cx,
8217 );
8218 this.backspace(&Backspace, cx);
8219 });
8220 }
8221
8222 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8223 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8224 s.move_cursors_with(|map, head, _| {
8225 (
8226 movement::line_end(map, head, action.stop_at_soft_wraps),
8227 SelectionGoal::None,
8228 )
8229 });
8230 })
8231 }
8232
8233 pub fn select_to_end_of_line(
8234 &mut self,
8235 action: &SelectToEndOfLine,
8236 cx: &mut ViewContext<Self>,
8237 ) {
8238 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8239 s.move_heads_with(|map, head, _| {
8240 (
8241 movement::line_end(map, head, action.stop_at_soft_wraps),
8242 SelectionGoal::None,
8243 )
8244 });
8245 })
8246 }
8247
8248 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8249 self.transact(cx, |this, cx| {
8250 this.select_to_end_of_line(
8251 &SelectToEndOfLine {
8252 stop_at_soft_wraps: false,
8253 },
8254 cx,
8255 );
8256 this.delete(&Delete, cx);
8257 });
8258 }
8259
8260 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8261 self.transact(cx, |this, cx| {
8262 this.select_to_end_of_line(
8263 &SelectToEndOfLine {
8264 stop_at_soft_wraps: false,
8265 },
8266 cx,
8267 );
8268 this.cut(&Cut, cx);
8269 });
8270 }
8271
8272 pub fn move_to_start_of_paragraph(
8273 &mut self,
8274 _: &MoveToStartOfParagraph,
8275 cx: &mut ViewContext<Self>,
8276 ) {
8277 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8278 cx.propagate();
8279 return;
8280 }
8281
8282 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8283 s.move_with(|map, selection| {
8284 selection.collapse_to(
8285 movement::start_of_paragraph(map, selection.head(), 1),
8286 SelectionGoal::None,
8287 )
8288 });
8289 })
8290 }
8291
8292 pub fn move_to_end_of_paragraph(
8293 &mut self,
8294 _: &MoveToEndOfParagraph,
8295 cx: &mut ViewContext<Self>,
8296 ) {
8297 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8298 cx.propagate();
8299 return;
8300 }
8301
8302 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8303 s.move_with(|map, selection| {
8304 selection.collapse_to(
8305 movement::end_of_paragraph(map, selection.head(), 1),
8306 SelectionGoal::None,
8307 )
8308 });
8309 })
8310 }
8311
8312 pub fn select_to_start_of_paragraph(
8313 &mut self,
8314 _: &SelectToStartOfParagraph,
8315 cx: &mut ViewContext<Self>,
8316 ) {
8317 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8318 cx.propagate();
8319 return;
8320 }
8321
8322 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8323 s.move_heads_with(|map, head, _| {
8324 (
8325 movement::start_of_paragraph(map, head, 1),
8326 SelectionGoal::None,
8327 )
8328 });
8329 })
8330 }
8331
8332 pub fn select_to_end_of_paragraph(
8333 &mut self,
8334 _: &SelectToEndOfParagraph,
8335 cx: &mut ViewContext<Self>,
8336 ) {
8337 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8338 cx.propagate();
8339 return;
8340 }
8341
8342 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8343 s.move_heads_with(|map, head, _| {
8344 (
8345 movement::end_of_paragraph(map, head, 1),
8346 SelectionGoal::None,
8347 )
8348 });
8349 })
8350 }
8351
8352 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8353 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8354 cx.propagate();
8355 return;
8356 }
8357
8358 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8359 s.select_ranges(vec![0..0]);
8360 });
8361 }
8362
8363 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8364 let mut selection = self.selections.last::<Point>(cx);
8365 selection.set_head(Point::zero(), SelectionGoal::None);
8366
8367 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8368 s.select(vec![selection]);
8369 });
8370 }
8371
8372 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8373 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8374 cx.propagate();
8375 return;
8376 }
8377
8378 let cursor = self.buffer.read(cx).read(cx).len();
8379 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8380 s.select_ranges(vec![cursor..cursor])
8381 });
8382 }
8383
8384 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8385 self.nav_history = nav_history;
8386 }
8387
8388 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8389 self.nav_history.as_ref()
8390 }
8391
8392 fn push_to_nav_history(
8393 &mut self,
8394 cursor_anchor: Anchor,
8395 new_position: Option<Point>,
8396 cx: &mut ViewContext<Self>,
8397 ) {
8398 if let Some(nav_history) = self.nav_history.as_mut() {
8399 let buffer = self.buffer.read(cx).read(cx);
8400 let cursor_position = cursor_anchor.to_point(&buffer);
8401 let scroll_state = self.scroll_manager.anchor();
8402 let scroll_top_row = scroll_state.top_row(&buffer);
8403 drop(buffer);
8404
8405 if let Some(new_position) = new_position {
8406 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8407 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8408 return;
8409 }
8410 }
8411
8412 nav_history.push(
8413 Some(NavigationData {
8414 cursor_anchor,
8415 cursor_position,
8416 scroll_anchor: scroll_state,
8417 scroll_top_row,
8418 }),
8419 cx,
8420 );
8421 }
8422 }
8423
8424 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8425 let buffer = self.buffer.read(cx).snapshot(cx);
8426 let mut selection = self.selections.first::<usize>(cx);
8427 selection.set_head(buffer.len(), SelectionGoal::None);
8428 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8429 s.select(vec![selection]);
8430 });
8431 }
8432
8433 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8434 let end = self.buffer.read(cx).read(cx).len();
8435 self.change_selections(None, cx, |s| {
8436 s.select_ranges(vec![0..end]);
8437 });
8438 }
8439
8440 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8441 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8442 let mut selections = self.selections.all::<Point>(cx);
8443 let max_point = display_map.buffer_snapshot.max_point();
8444 for selection in &mut selections {
8445 let rows = selection.spanned_rows(true, &display_map);
8446 selection.start = Point::new(rows.start.0, 0);
8447 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8448 selection.reversed = false;
8449 }
8450 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8451 s.select(selections);
8452 });
8453 }
8454
8455 pub fn split_selection_into_lines(
8456 &mut self,
8457 _: &SplitSelectionIntoLines,
8458 cx: &mut ViewContext<Self>,
8459 ) {
8460 let mut to_unfold = Vec::new();
8461 let mut new_selection_ranges = Vec::new();
8462 {
8463 let selections = self.selections.all::<Point>(cx);
8464 let buffer = self.buffer.read(cx).read(cx);
8465 for selection in selections {
8466 for row in selection.start.row..selection.end.row {
8467 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8468 new_selection_ranges.push(cursor..cursor);
8469 }
8470 new_selection_ranges.push(selection.end..selection.end);
8471 to_unfold.push(selection.start..selection.end);
8472 }
8473 }
8474 self.unfold_ranges(&to_unfold, true, true, cx);
8475 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8476 s.select_ranges(new_selection_ranges);
8477 });
8478 }
8479
8480 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8481 self.add_selection(true, cx);
8482 }
8483
8484 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8485 self.add_selection(false, cx);
8486 }
8487
8488 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8489 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8490 let mut selections = self.selections.all::<Point>(cx);
8491 let text_layout_details = self.text_layout_details(cx);
8492 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8493 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8494 let range = oldest_selection.display_range(&display_map).sorted();
8495
8496 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8497 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8498 let positions = start_x.min(end_x)..start_x.max(end_x);
8499
8500 selections.clear();
8501 let mut stack = Vec::new();
8502 for row in range.start.row().0..=range.end.row().0 {
8503 if let Some(selection) = self.selections.build_columnar_selection(
8504 &display_map,
8505 DisplayRow(row),
8506 &positions,
8507 oldest_selection.reversed,
8508 &text_layout_details,
8509 ) {
8510 stack.push(selection.id);
8511 selections.push(selection);
8512 }
8513 }
8514
8515 if above {
8516 stack.reverse();
8517 }
8518
8519 AddSelectionsState { above, stack }
8520 });
8521
8522 let last_added_selection = *state.stack.last().unwrap();
8523 let mut new_selections = Vec::new();
8524 if above == state.above {
8525 let end_row = if above {
8526 DisplayRow(0)
8527 } else {
8528 display_map.max_point().row()
8529 };
8530
8531 'outer: for selection in selections {
8532 if selection.id == last_added_selection {
8533 let range = selection.display_range(&display_map).sorted();
8534 debug_assert_eq!(range.start.row(), range.end.row());
8535 let mut row = range.start.row();
8536 let positions =
8537 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8538 px(start)..px(end)
8539 } else {
8540 let start_x =
8541 display_map.x_for_display_point(range.start, &text_layout_details);
8542 let end_x =
8543 display_map.x_for_display_point(range.end, &text_layout_details);
8544 start_x.min(end_x)..start_x.max(end_x)
8545 };
8546
8547 while row != end_row {
8548 if above {
8549 row.0 -= 1;
8550 } else {
8551 row.0 += 1;
8552 }
8553
8554 if let Some(new_selection) = self.selections.build_columnar_selection(
8555 &display_map,
8556 row,
8557 &positions,
8558 selection.reversed,
8559 &text_layout_details,
8560 ) {
8561 state.stack.push(new_selection.id);
8562 if above {
8563 new_selections.push(new_selection);
8564 new_selections.push(selection);
8565 } else {
8566 new_selections.push(selection);
8567 new_selections.push(new_selection);
8568 }
8569
8570 continue 'outer;
8571 }
8572 }
8573 }
8574
8575 new_selections.push(selection);
8576 }
8577 } else {
8578 new_selections = selections;
8579 new_selections.retain(|s| s.id != last_added_selection);
8580 state.stack.pop();
8581 }
8582
8583 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8584 s.select(new_selections);
8585 });
8586 if state.stack.len() > 1 {
8587 self.add_selections_state = Some(state);
8588 }
8589 }
8590
8591 pub fn select_next_match_internal(
8592 &mut self,
8593 display_map: &DisplaySnapshot,
8594 replace_newest: bool,
8595 autoscroll: Option<Autoscroll>,
8596 cx: &mut ViewContext<Self>,
8597 ) -> Result<()> {
8598 fn select_next_match_ranges(
8599 this: &mut Editor,
8600 range: Range<usize>,
8601 replace_newest: bool,
8602 auto_scroll: Option<Autoscroll>,
8603 cx: &mut ViewContext<Editor>,
8604 ) {
8605 this.unfold_ranges(&[range.clone()], false, true, cx);
8606 this.change_selections(auto_scroll, cx, |s| {
8607 if replace_newest {
8608 s.delete(s.newest_anchor().id);
8609 }
8610 s.insert_range(range.clone());
8611 });
8612 }
8613
8614 let buffer = &display_map.buffer_snapshot;
8615 let mut selections = self.selections.all::<usize>(cx);
8616 if let Some(mut select_next_state) = self.select_next_state.take() {
8617 let query = &select_next_state.query;
8618 if !select_next_state.done {
8619 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8620 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8621 let mut next_selected_range = None;
8622
8623 let bytes_after_last_selection =
8624 buffer.bytes_in_range(last_selection.end..buffer.len());
8625 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8626 let query_matches = query
8627 .stream_find_iter(bytes_after_last_selection)
8628 .map(|result| (last_selection.end, result))
8629 .chain(
8630 query
8631 .stream_find_iter(bytes_before_first_selection)
8632 .map(|result| (0, result)),
8633 );
8634
8635 for (start_offset, query_match) in query_matches {
8636 let query_match = query_match.unwrap(); // can only fail due to I/O
8637 let offset_range =
8638 start_offset + query_match.start()..start_offset + query_match.end();
8639 let display_range = offset_range.start.to_display_point(display_map)
8640 ..offset_range.end.to_display_point(display_map);
8641
8642 if !select_next_state.wordwise
8643 || (!movement::is_inside_word(display_map, display_range.start)
8644 && !movement::is_inside_word(display_map, display_range.end))
8645 {
8646 // TODO: This is n^2, because we might check all the selections
8647 if !selections
8648 .iter()
8649 .any(|selection| selection.range().overlaps(&offset_range))
8650 {
8651 next_selected_range = Some(offset_range);
8652 break;
8653 }
8654 }
8655 }
8656
8657 if let Some(next_selected_range) = next_selected_range {
8658 select_next_match_ranges(
8659 self,
8660 next_selected_range,
8661 replace_newest,
8662 autoscroll,
8663 cx,
8664 );
8665 } else {
8666 select_next_state.done = true;
8667 }
8668 }
8669
8670 self.select_next_state = Some(select_next_state);
8671 } else {
8672 let mut only_carets = true;
8673 let mut same_text_selected = true;
8674 let mut selected_text = None;
8675
8676 let mut selections_iter = selections.iter().peekable();
8677 while let Some(selection) = selections_iter.next() {
8678 if selection.start != selection.end {
8679 only_carets = false;
8680 }
8681
8682 if same_text_selected {
8683 if selected_text.is_none() {
8684 selected_text =
8685 Some(buffer.text_for_range(selection.range()).collect::<String>());
8686 }
8687
8688 if let Some(next_selection) = selections_iter.peek() {
8689 if next_selection.range().len() == selection.range().len() {
8690 let next_selected_text = buffer
8691 .text_for_range(next_selection.range())
8692 .collect::<String>();
8693 if Some(next_selected_text) != selected_text {
8694 same_text_selected = false;
8695 selected_text = None;
8696 }
8697 } else {
8698 same_text_selected = false;
8699 selected_text = None;
8700 }
8701 }
8702 }
8703 }
8704
8705 if only_carets {
8706 for selection in &mut selections {
8707 let word_range = movement::surrounding_word(
8708 display_map,
8709 selection.start.to_display_point(display_map),
8710 );
8711 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8712 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8713 selection.goal = SelectionGoal::None;
8714 selection.reversed = false;
8715 select_next_match_ranges(
8716 self,
8717 selection.start..selection.end,
8718 replace_newest,
8719 autoscroll,
8720 cx,
8721 );
8722 }
8723
8724 if selections.len() == 1 {
8725 let selection = selections
8726 .last()
8727 .expect("ensured that there's only one selection");
8728 let query = buffer
8729 .text_for_range(selection.start..selection.end)
8730 .collect::<String>();
8731 let is_empty = query.is_empty();
8732 let select_state = SelectNextState {
8733 query: AhoCorasick::new(&[query])?,
8734 wordwise: true,
8735 done: is_empty,
8736 };
8737 self.select_next_state = Some(select_state);
8738 } else {
8739 self.select_next_state = None;
8740 }
8741 } else if let Some(selected_text) = selected_text {
8742 self.select_next_state = Some(SelectNextState {
8743 query: AhoCorasick::new(&[selected_text])?,
8744 wordwise: false,
8745 done: false,
8746 });
8747 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8748 }
8749 }
8750 Ok(())
8751 }
8752
8753 pub fn select_all_matches(
8754 &mut self,
8755 _action: &SelectAllMatches,
8756 cx: &mut ViewContext<Self>,
8757 ) -> Result<()> {
8758 self.push_to_selection_history();
8759 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8760
8761 self.select_next_match_internal(&display_map, false, None, cx)?;
8762 let Some(select_next_state) = self.select_next_state.as_mut() else {
8763 return Ok(());
8764 };
8765 if select_next_state.done {
8766 return Ok(());
8767 }
8768
8769 let mut new_selections = self.selections.all::<usize>(cx);
8770
8771 let buffer = &display_map.buffer_snapshot;
8772 let query_matches = select_next_state
8773 .query
8774 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8775
8776 for query_match in query_matches {
8777 let query_match = query_match.unwrap(); // can only fail due to I/O
8778 let offset_range = query_match.start()..query_match.end();
8779 let display_range = offset_range.start.to_display_point(&display_map)
8780 ..offset_range.end.to_display_point(&display_map);
8781
8782 if !select_next_state.wordwise
8783 || (!movement::is_inside_word(&display_map, display_range.start)
8784 && !movement::is_inside_word(&display_map, display_range.end))
8785 {
8786 self.selections.change_with(cx, |selections| {
8787 new_selections.push(Selection {
8788 id: selections.new_selection_id(),
8789 start: offset_range.start,
8790 end: offset_range.end,
8791 reversed: false,
8792 goal: SelectionGoal::None,
8793 });
8794 });
8795 }
8796 }
8797
8798 new_selections.sort_by_key(|selection| selection.start);
8799 let mut ix = 0;
8800 while ix + 1 < new_selections.len() {
8801 let current_selection = &new_selections[ix];
8802 let next_selection = &new_selections[ix + 1];
8803 if current_selection.range().overlaps(&next_selection.range()) {
8804 if current_selection.id < next_selection.id {
8805 new_selections.remove(ix + 1);
8806 } else {
8807 new_selections.remove(ix);
8808 }
8809 } else {
8810 ix += 1;
8811 }
8812 }
8813
8814 select_next_state.done = true;
8815 self.unfold_ranges(
8816 &new_selections
8817 .iter()
8818 .map(|selection| selection.range())
8819 .collect::<Vec<_>>(),
8820 false,
8821 false,
8822 cx,
8823 );
8824 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8825 selections.select(new_selections)
8826 });
8827
8828 Ok(())
8829 }
8830
8831 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8832 self.push_to_selection_history();
8833 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8834 self.select_next_match_internal(
8835 &display_map,
8836 action.replace_newest,
8837 Some(Autoscroll::newest()),
8838 cx,
8839 )?;
8840 Ok(())
8841 }
8842
8843 pub fn select_previous(
8844 &mut self,
8845 action: &SelectPrevious,
8846 cx: &mut ViewContext<Self>,
8847 ) -> Result<()> {
8848 self.push_to_selection_history();
8849 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8850 let buffer = &display_map.buffer_snapshot;
8851 let mut selections = self.selections.all::<usize>(cx);
8852 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8853 let query = &select_prev_state.query;
8854 if !select_prev_state.done {
8855 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8856 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8857 let mut next_selected_range = None;
8858 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8859 let bytes_before_last_selection =
8860 buffer.reversed_bytes_in_range(0..last_selection.start);
8861 let bytes_after_first_selection =
8862 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8863 let query_matches = query
8864 .stream_find_iter(bytes_before_last_selection)
8865 .map(|result| (last_selection.start, result))
8866 .chain(
8867 query
8868 .stream_find_iter(bytes_after_first_selection)
8869 .map(|result| (buffer.len(), result)),
8870 );
8871 for (end_offset, query_match) in query_matches {
8872 let query_match = query_match.unwrap(); // can only fail due to I/O
8873 let offset_range =
8874 end_offset - query_match.end()..end_offset - query_match.start();
8875 let display_range = offset_range.start.to_display_point(&display_map)
8876 ..offset_range.end.to_display_point(&display_map);
8877
8878 if !select_prev_state.wordwise
8879 || (!movement::is_inside_word(&display_map, display_range.start)
8880 && !movement::is_inside_word(&display_map, display_range.end))
8881 {
8882 next_selected_range = Some(offset_range);
8883 break;
8884 }
8885 }
8886
8887 if let Some(next_selected_range) = next_selected_range {
8888 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8889 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8890 if action.replace_newest {
8891 s.delete(s.newest_anchor().id);
8892 }
8893 s.insert_range(next_selected_range);
8894 });
8895 } else {
8896 select_prev_state.done = true;
8897 }
8898 }
8899
8900 self.select_prev_state = Some(select_prev_state);
8901 } else {
8902 let mut only_carets = true;
8903 let mut same_text_selected = true;
8904 let mut selected_text = None;
8905
8906 let mut selections_iter = selections.iter().peekable();
8907 while let Some(selection) = selections_iter.next() {
8908 if selection.start != selection.end {
8909 only_carets = false;
8910 }
8911
8912 if same_text_selected {
8913 if selected_text.is_none() {
8914 selected_text =
8915 Some(buffer.text_for_range(selection.range()).collect::<String>());
8916 }
8917
8918 if let Some(next_selection) = selections_iter.peek() {
8919 if next_selection.range().len() == selection.range().len() {
8920 let next_selected_text = buffer
8921 .text_for_range(next_selection.range())
8922 .collect::<String>();
8923 if Some(next_selected_text) != selected_text {
8924 same_text_selected = false;
8925 selected_text = None;
8926 }
8927 } else {
8928 same_text_selected = false;
8929 selected_text = None;
8930 }
8931 }
8932 }
8933 }
8934
8935 if only_carets {
8936 for selection in &mut selections {
8937 let word_range = movement::surrounding_word(
8938 &display_map,
8939 selection.start.to_display_point(&display_map),
8940 );
8941 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8942 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8943 selection.goal = SelectionGoal::None;
8944 selection.reversed = false;
8945 }
8946 if selections.len() == 1 {
8947 let selection = selections
8948 .last()
8949 .expect("ensured that there's only one selection");
8950 let query = buffer
8951 .text_for_range(selection.start..selection.end)
8952 .collect::<String>();
8953 let is_empty = query.is_empty();
8954 let select_state = SelectNextState {
8955 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8956 wordwise: true,
8957 done: is_empty,
8958 };
8959 self.select_prev_state = Some(select_state);
8960 } else {
8961 self.select_prev_state = None;
8962 }
8963
8964 self.unfold_ranges(
8965 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8966 false,
8967 true,
8968 cx,
8969 );
8970 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8971 s.select(selections);
8972 });
8973 } else if let Some(selected_text) = selected_text {
8974 self.select_prev_state = Some(SelectNextState {
8975 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8976 wordwise: false,
8977 done: false,
8978 });
8979 self.select_previous(action, cx)?;
8980 }
8981 }
8982 Ok(())
8983 }
8984
8985 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8986 if self.read_only(cx) {
8987 return;
8988 }
8989 let text_layout_details = &self.text_layout_details(cx);
8990 self.transact(cx, |this, cx| {
8991 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8992 let mut edits = Vec::new();
8993 let mut selection_edit_ranges = Vec::new();
8994 let mut last_toggled_row = None;
8995 let snapshot = this.buffer.read(cx).read(cx);
8996 let empty_str: Arc<str> = Arc::default();
8997 let mut suffixes_inserted = Vec::new();
8998 let ignore_indent = action.ignore_indent;
8999
9000 fn comment_prefix_range(
9001 snapshot: &MultiBufferSnapshot,
9002 row: MultiBufferRow,
9003 comment_prefix: &str,
9004 comment_prefix_whitespace: &str,
9005 ignore_indent: bool,
9006 ) -> Range<Point> {
9007 let indent_size = if ignore_indent {
9008 0
9009 } else {
9010 snapshot.indent_size_for_line(row).len
9011 };
9012
9013 let start = Point::new(row.0, indent_size);
9014
9015 let mut line_bytes = snapshot
9016 .bytes_in_range(start..snapshot.max_point())
9017 .flatten()
9018 .copied();
9019
9020 // If this line currently begins with the line comment prefix, then record
9021 // the range containing the prefix.
9022 if line_bytes
9023 .by_ref()
9024 .take(comment_prefix.len())
9025 .eq(comment_prefix.bytes())
9026 {
9027 // Include any whitespace that matches the comment prefix.
9028 let matching_whitespace_len = line_bytes
9029 .zip(comment_prefix_whitespace.bytes())
9030 .take_while(|(a, b)| a == b)
9031 .count() as u32;
9032 let end = Point::new(
9033 start.row,
9034 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
9035 );
9036 start..end
9037 } else {
9038 start..start
9039 }
9040 }
9041
9042 fn comment_suffix_range(
9043 snapshot: &MultiBufferSnapshot,
9044 row: MultiBufferRow,
9045 comment_suffix: &str,
9046 comment_suffix_has_leading_space: bool,
9047 ) -> Range<Point> {
9048 let end = Point::new(row.0, snapshot.line_len(row));
9049 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
9050
9051 let mut line_end_bytes = snapshot
9052 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
9053 .flatten()
9054 .copied();
9055
9056 let leading_space_len = if suffix_start_column > 0
9057 && line_end_bytes.next() == Some(b' ')
9058 && comment_suffix_has_leading_space
9059 {
9060 1
9061 } else {
9062 0
9063 };
9064
9065 // If this line currently begins with the line comment prefix, then record
9066 // the range containing the prefix.
9067 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
9068 let start = Point::new(end.row, suffix_start_column - leading_space_len);
9069 start..end
9070 } else {
9071 end..end
9072 }
9073 }
9074
9075 // TODO: Handle selections that cross excerpts
9076 for selection in &mut selections {
9077 let start_column = snapshot
9078 .indent_size_for_line(MultiBufferRow(selection.start.row))
9079 .len;
9080 let language = if let Some(language) =
9081 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
9082 {
9083 language
9084 } else {
9085 continue;
9086 };
9087
9088 selection_edit_ranges.clear();
9089
9090 // If multiple selections contain a given row, avoid processing that
9091 // row more than once.
9092 let mut start_row = MultiBufferRow(selection.start.row);
9093 if last_toggled_row == Some(start_row) {
9094 start_row = start_row.next_row();
9095 }
9096 let end_row =
9097 if selection.end.row > selection.start.row && selection.end.column == 0 {
9098 MultiBufferRow(selection.end.row - 1)
9099 } else {
9100 MultiBufferRow(selection.end.row)
9101 };
9102 last_toggled_row = Some(end_row);
9103
9104 if start_row > end_row {
9105 continue;
9106 }
9107
9108 // If the language has line comments, toggle those.
9109 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
9110
9111 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
9112 if ignore_indent {
9113 full_comment_prefixes = full_comment_prefixes
9114 .into_iter()
9115 .map(|s| Arc::from(s.trim_end()))
9116 .collect();
9117 }
9118
9119 if !full_comment_prefixes.is_empty() {
9120 let first_prefix = full_comment_prefixes
9121 .first()
9122 .expect("prefixes is non-empty");
9123 let prefix_trimmed_lengths = full_comment_prefixes
9124 .iter()
9125 .map(|p| p.trim_end_matches(' ').len())
9126 .collect::<SmallVec<[usize; 4]>>();
9127
9128 let mut all_selection_lines_are_comments = true;
9129
9130 for row in start_row.0..=end_row.0 {
9131 let row = MultiBufferRow(row);
9132 if start_row < end_row && snapshot.is_line_blank(row) {
9133 continue;
9134 }
9135
9136 let prefix_range = full_comment_prefixes
9137 .iter()
9138 .zip(prefix_trimmed_lengths.iter().copied())
9139 .map(|(prefix, trimmed_prefix_len)| {
9140 comment_prefix_range(
9141 snapshot.deref(),
9142 row,
9143 &prefix[..trimmed_prefix_len],
9144 &prefix[trimmed_prefix_len..],
9145 ignore_indent,
9146 )
9147 })
9148 .max_by_key(|range| range.end.column - range.start.column)
9149 .expect("prefixes is non-empty");
9150
9151 if prefix_range.is_empty() {
9152 all_selection_lines_are_comments = false;
9153 }
9154
9155 selection_edit_ranges.push(prefix_range);
9156 }
9157
9158 if all_selection_lines_are_comments {
9159 edits.extend(
9160 selection_edit_ranges
9161 .iter()
9162 .cloned()
9163 .map(|range| (range, empty_str.clone())),
9164 );
9165 } else {
9166 let min_column = selection_edit_ranges
9167 .iter()
9168 .map(|range| range.start.column)
9169 .min()
9170 .unwrap_or(0);
9171 edits.extend(selection_edit_ranges.iter().map(|range| {
9172 let position = Point::new(range.start.row, min_column);
9173 (position..position, first_prefix.clone())
9174 }));
9175 }
9176 } else if let Some((full_comment_prefix, comment_suffix)) =
9177 language.block_comment_delimiters()
9178 {
9179 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
9180 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
9181 let prefix_range = comment_prefix_range(
9182 snapshot.deref(),
9183 start_row,
9184 comment_prefix,
9185 comment_prefix_whitespace,
9186 ignore_indent,
9187 );
9188 let suffix_range = comment_suffix_range(
9189 snapshot.deref(),
9190 end_row,
9191 comment_suffix.trim_start_matches(' '),
9192 comment_suffix.starts_with(' '),
9193 );
9194
9195 if prefix_range.is_empty() || suffix_range.is_empty() {
9196 edits.push((
9197 prefix_range.start..prefix_range.start,
9198 full_comment_prefix.clone(),
9199 ));
9200 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9201 suffixes_inserted.push((end_row, comment_suffix.len()));
9202 } else {
9203 edits.push((prefix_range, empty_str.clone()));
9204 edits.push((suffix_range, empty_str.clone()));
9205 }
9206 } else {
9207 continue;
9208 }
9209 }
9210
9211 drop(snapshot);
9212 this.buffer.update(cx, |buffer, cx| {
9213 buffer.edit(edits, None, cx);
9214 });
9215
9216 // Adjust selections so that they end before any comment suffixes that
9217 // were inserted.
9218 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9219 let mut selections = this.selections.all::<Point>(cx);
9220 let snapshot = this.buffer.read(cx).read(cx);
9221 for selection in &mut selections {
9222 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9223 match row.cmp(&MultiBufferRow(selection.end.row)) {
9224 Ordering::Less => {
9225 suffixes_inserted.next();
9226 continue;
9227 }
9228 Ordering::Greater => break,
9229 Ordering::Equal => {
9230 if selection.end.column == snapshot.line_len(row) {
9231 if selection.is_empty() {
9232 selection.start.column -= suffix_len as u32;
9233 }
9234 selection.end.column -= suffix_len as u32;
9235 }
9236 break;
9237 }
9238 }
9239 }
9240 }
9241
9242 drop(snapshot);
9243 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9244
9245 let selections = this.selections.all::<Point>(cx);
9246 let selections_on_single_row = selections.windows(2).all(|selections| {
9247 selections[0].start.row == selections[1].start.row
9248 && selections[0].end.row == selections[1].end.row
9249 && selections[0].start.row == selections[0].end.row
9250 });
9251 let selections_selecting = selections
9252 .iter()
9253 .any(|selection| selection.start != selection.end);
9254 let advance_downwards = action.advance_downwards
9255 && selections_on_single_row
9256 && !selections_selecting
9257 && !matches!(this.mode, EditorMode::SingleLine { .. });
9258
9259 if advance_downwards {
9260 let snapshot = this.buffer.read(cx).snapshot(cx);
9261
9262 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9263 s.move_cursors_with(|display_snapshot, display_point, _| {
9264 let mut point = display_point.to_point(display_snapshot);
9265 point.row += 1;
9266 point = snapshot.clip_point(point, Bias::Left);
9267 let display_point = point.to_display_point(display_snapshot);
9268 let goal = SelectionGoal::HorizontalPosition(
9269 display_snapshot
9270 .x_for_display_point(display_point, text_layout_details)
9271 .into(),
9272 );
9273 (display_point, goal)
9274 })
9275 });
9276 }
9277 });
9278 }
9279
9280 pub fn select_enclosing_symbol(
9281 &mut self,
9282 _: &SelectEnclosingSymbol,
9283 cx: &mut ViewContext<Self>,
9284 ) {
9285 let buffer = self.buffer.read(cx).snapshot(cx);
9286 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9287
9288 fn update_selection(
9289 selection: &Selection<usize>,
9290 buffer_snap: &MultiBufferSnapshot,
9291 ) -> Option<Selection<usize>> {
9292 let cursor = selection.head();
9293 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9294 for symbol in symbols.iter().rev() {
9295 let start = symbol.range.start.to_offset(buffer_snap);
9296 let end = symbol.range.end.to_offset(buffer_snap);
9297 let new_range = start..end;
9298 if start < selection.start || end > selection.end {
9299 return Some(Selection {
9300 id: selection.id,
9301 start: new_range.start,
9302 end: new_range.end,
9303 goal: SelectionGoal::None,
9304 reversed: selection.reversed,
9305 });
9306 }
9307 }
9308 None
9309 }
9310
9311 let mut selected_larger_symbol = false;
9312 let new_selections = old_selections
9313 .iter()
9314 .map(|selection| match update_selection(selection, &buffer) {
9315 Some(new_selection) => {
9316 if new_selection.range() != selection.range() {
9317 selected_larger_symbol = true;
9318 }
9319 new_selection
9320 }
9321 None => selection.clone(),
9322 })
9323 .collect::<Vec<_>>();
9324
9325 if selected_larger_symbol {
9326 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9327 s.select(new_selections);
9328 });
9329 }
9330 }
9331
9332 pub fn select_larger_syntax_node(
9333 &mut self,
9334 _: &SelectLargerSyntaxNode,
9335 cx: &mut ViewContext<Self>,
9336 ) {
9337 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9338 let buffer = self.buffer.read(cx).snapshot(cx);
9339 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9340
9341 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9342 let mut selected_larger_node = false;
9343 let new_selections = old_selections
9344 .iter()
9345 .map(|selection| {
9346 let old_range = selection.start..selection.end;
9347 let mut new_range = old_range.clone();
9348 while let Some(containing_range) =
9349 buffer.range_for_syntax_ancestor(new_range.clone())
9350 {
9351 new_range = containing_range;
9352 if !display_map.intersects_fold(new_range.start)
9353 && !display_map.intersects_fold(new_range.end)
9354 {
9355 break;
9356 }
9357 }
9358
9359 selected_larger_node |= new_range != old_range;
9360 Selection {
9361 id: selection.id,
9362 start: new_range.start,
9363 end: new_range.end,
9364 goal: SelectionGoal::None,
9365 reversed: selection.reversed,
9366 }
9367 })
9368 .collect::<Vec<_>>();
9369
9370 if selected_larger_node {
9371 stack.push(old_selections);
9372 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9373 s.select(new_selections);
9374 });
9375 }
9376 self.select_larger_syntax_node_stack = stack;
9377 }
9378
9379 pub fn select_smaller_syntax_node(
9380 &mut self,
9381 _: &SelectSmallerSyntaxNode,
9382 cx: &mut ViewContext<Self>,
9383 ) {
9384 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9385 if let Some(selections) = stack.pop() {
9386 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9387 s.select(selections.to_vec());
9388 });
9389 }
9390 self.select_larger_syntax_node_stack = stack;
9391 }
9392
9393 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9394 if !EditorSettings::get_global(cx).gutter.runnables {
9395 self.clear_tasks();
9396 return Task::ready(());
9397 }
9398 let project = self.project.as_ref().map(Model::downgrade);
9399 cx.spawn(|this, mut cx| async move {
9400 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9401 let Some(project) = project.and_then(|p| p.upgrade()) else {
9402 return;
9403 };
9404 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9405 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9406 }) else {
9407 return;
9408 };
9409
9410 let hide_runnables = project
9411 .update(&mut cx, |project, cx| {
9412 // Do not display any test indicators in non-dev server remote projects.
9413 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9414 })
9415 .unwrap_or(true);
9416 if hide_runnables {
9417 return;
9418 }
9419 let new_rows =
9420 cx.background_executor()
9421 .spawn({
9422 let snapshot = display_snapshot.clone();
9423 async move {
9424 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9425 }
9426 })
9427 .await;
9428 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9429
9430 this.update(&mut cx, |this, _| {
9431 this.clear_tasks();
9432 for (key, value) in rows {
9433 this.insert_tasks(key, value);
9434 }
9435 })
9436 .ok();
9437 })
9438 }
9439 fn fetch_runnable_ranges(
9440 snapshot: &DisplaySnapshot,
9441 range: Range<Anchor>,
9442 ) -> Vec<language::RunnableRange> {
9443 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9444 }
9445
9446 fn runnable_rows(
9447 project: Model<Project>,
9448 snapshot: DisplaySnapshot,
9449 runnable_ranges: Vec<RunnableRange>,
9450 mut cx: AsyncWindowContext,
9451 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9452 runnable_ranges
9453 .into_iter()
9454 .filter_map(|mut runnable| {
9455 let tasks = cx
9456 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9457 .ok()?;
9458 if tasks.is_empty() {
9459 return None;
9460 }
9461
9462 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9463
9464 let row = snapshot
9465 .buffer_snapshot
9466 .buffer_line_for_row(MultiBufferRow(point.row))?
9467 .1
9468 .start
9469 .row;
9470
9471 let context_range =
9472 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9473 Some((
9474 (runnable.buffer_id, row),
9475 RunnableTasks {
9476 templates: tasks,
9477 offset: MultiBufferOffset(runnable.run_range.start),
9478 context_range,
9479 column: point.column,
9480 extra_variables: runnable.extra_captures,
9481 },
9482 ))
9483 })
9484 .collect()
9485 }
9486
9487 fn templates_with_tags(
9488 project: &Model<Project>,
9489 runnable: &mut Runnable,
9490 cx: &WindowContext<'_>,
9491 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9492 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9493 let (worktree_id, file) = project
9494 .buffer_for_id(runnable.buffer, cx)
9495 .and_then(|buffer| buffer.read(cx).file())
9496 .map(|file| (file.worktree_id(cx), file.clone()))
9497 .unzip();
9498
9499 (
9500 project.task_store().read(cx).task_inventory().cloned(),
9501 worktree_id,
9502 file,
9503 )
9504 });
9505
9506 let tags = mem::take(&mut runnable.tags);
9507 let mut tags: Vec<_> = tags
9508 .into_iter()
9509 .flat_map(|tag| {
9510 let tag = tag.0.clone();
9511 inventory
9512 .as_ref()
9513 .into_iter()
9514 .flat_map(|inventory| {
9515 inventory.read(cx).list_tasks(
9516 file.clone(),
9517 Some(runnable.language.clone()),
9518 worktree_id,
9519 cx,
9520 )
9521 })
9522 .filter(move |(_, template)| {
9523 template.tags.iter().any(|source_tag| source_tag == &tag)
9524 })
9525 })
9526 .sorted_by_key(|(kind, _)| kind.to_owned())
9527 .collect();
9528 if let Some((leading_tag_source, _)) = tags.first() {
9529 // Strongest source wins; if we have worktree tag binding, prefer that to
9530 // global and language bindings;
9531 // if we have a global binding, prefer that to language binding.
9532 let first_mismatch = tags
9533 .iter()
9534 .position(|(tag_source, _)| tag_source != leading_tag_source);
9535 if let Some(index) = first_mismatch {
9536 tags.truncate(index);
9537 }
9538 }
9539
9540 tags
9541 }
9542
9543 pub fn move_to_enclosing_bracket(
9544 &mut self,
9545 _: &MoveToEnclosingBracket,
9546 cx: &mut ViewContext<Self>,
9547 ) {
9548 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9549 s.move_offsets_with(|snapshot, selection| {
9550 let Some(enclosing_bracket_ranges) =
9551 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9552 else {
9553 return;
9554 };
9555
9556 let mut best_length = usize::MAX;
9557 let mut best_inside = false;
9558 let mut best_in_bracket_range = false;
9559 let mut best_destination = None;
9560 for (open, close) in enclosing_bracket_ranges {
9561 let close = close.to_inclusive();
9562 let length = close.end() - open.start;
9563 let inside = selection.start >= open.end && selection.end <= *close.start();
9564 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9565 || close.contains(&selection.head());
9566
9567 // If best is next to a bracket and current isn't, skip
9568 if !in_bracket_range && best_in_bracket_range {
9569 continue;
9570 }
9571
9572 // Prefer smaller lengths unless best is inside and current isn't
9573 if length > best_length && (best_inside || !inside) {
9574 continue;
9575 }
9576
9577 best_length = length;
9578 best_inside = inside;
9579 best_in_bracket_range = in_bracket_range;
9580 best_destination = Some(
9581 if close.contains(&selection.start) && close.contains(&selection.end) {
9582 if inside {
9583 open.end
9584 } else {
9585 open.start
9586 }
9587 } else if inside {
9588 *close.start()
9589 } else {
9590 *close.end()
9591 },
9592 );
9593 }
9594
9595 if let Some(destination) = best_destination {
9596 selection.collapse_to(destination, SelectionGoal::None);
9597 }
9598 })
9599 });
9600 }
9601
9602 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9603 self.end_selection(cx);
9604 self.selection_history.mode = SelectionHistoryMode::Undoing;
9605 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9606 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9607 self.select_next_state = entry.select_next_state;
9608 self.select_prev_state = entry.select_prev_state;
9609 self.add_selections_state = entry.add_selections_state;
9610 self.request_autoscroll(Autoscroll::newest(), cx);
9611 }
9612 self.selection_history.mode = SelectionHistoryMode::Normal;
9613 }
9614
9615 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9616 self.end_selection(cx);
9617 self.selection_history.mode = SelectionHistoryMode::Redoing;
9618 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9619 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9620 self.select_next_state = entry.select_next_state;
9621 self.select_prev_state = entry.select_prev_state;
9622 self.add_selections_state = entry.add_selections_state;
9623 self.request_autoscroll(Autoscroll::newest(), cx);
9624 }
9625 self.selection_history.mode = SelectionHistoryMode::Normal;
9626 }
9627
9628 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9629 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9630 }
9631
9632 pub fn expand_excerpts_down(
9633 &mut self,
9634 action: &ExpandExcerptsDown,
9635 cx: &mut ViewContext<Self>,
9636 ) {
9637 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9638 }
9639
9640 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9641 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9642 }
9643
9644 pub fn expand_excerpts_for_direction(
9645 &mut self,
9646 lines: u32,
9647 direction: ExpandExcerptDirection,
9648 cx: &mut ViewContext<Self>,
9649 ) {
9650 let selections = self.selections.disjoint_anchors();
9651
9652 let lines = if lines == 0 {
9653 EditorSettings::get_global(cx).expand_excerpt_lines
9654 } else {
9655 lines
9656 };
9657
9658 self.buffer.update(cx, |buffer, cx| {
9659 buffer.expand_excerpts(
9660 selections
9661 .iter()
9662 .map(|selection| selection.head().excerpt_id)
9663 .dedup(),
9664 lines,
9665 direction,
9666 cx,
9667 )
9668 })
9669 }
9670
9671 pub fn expand_excerpt(
9672 &mut self,
9673 excerpt: ExcerptId,
9674 direction: ExpandExcerptDirection,
9675 cx: &mut ViewContext<Self>,
9676 ) {
9677 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9678 self.buffer.update(cx, |buffer, cx| {
9679 buffer.expand_excerpts([excerpt], lines, direction, cx)
9680 })
9681 }
9682
9683 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9684 self.go_to_diagnostic_impl(Direction::Next, cx)
9685 }
9686
9687 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9688 self.go_to_diagnostic_impl(Direction::Prev, cx)
9689 }
9690
9691 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9692 let buffer = self.buffer.read(cx).snapshot(cx);
9693 let selection = self.selections.newest::<usize>(cx);
9694
9695 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9696 if direction == Direction::Next {
9697 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9698 let (group_id, jump_to) = popover.activation_info();
9699 if self.activate_diagnostics(group_id, cx) {
9700 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9701 let mut new_selection = s.newest_anchor().clone();
9702 new_selection.collapse_to(jump_to, SelectionGoal::None);
9703 s.select_anchors(vec![new_selection.clone()]);
9704 });
9705 }
9706 return;
9707 }
9708 }
9709
9710 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9711 active_diagnostics
9712 .primary_range
9713 .to_offset(&buffer)
9714 .to_inclusive()
9715 });
9716 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9717 if active_primary_range.contains(&selection.head()) {
9718 *active_primary_range.start()
9719 } else {
9720 selection.head()
9721 }
9722 } else {
9723 selection.head()
9724 };
9725 let snapshot = self.snapshot(cx);
9726 loop {
9727 let diagnostics = if direction == Direction::Prev {
9728 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9729 } else {
9730 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9731 }
9732 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9733 let group = diagnostics
9734 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9735 // be sorted in a stable way
9736 // skip until we are at current active diagnostic, if it exists
9737 .skip_while(|entry| {
9738 (match direction {
9739 Direction::Prev => entry.range.start >= search_start,
9740 Direction::Next => entry.range.start <= search_start,
9741 }) && self
9742 .active_diagnostics
9743 .as_ref()
9744 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9745 })
9746 .find_map(|entry| {
9747 if entry.diagnostic.is_primary
9748 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9749 && !entry.range.is_empty()
9750 // if we match with the active diagnostic, skip it
9751 && Some(entry.diagnostic.group_id)
9752 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9753 {
9754 Some((entry.range, entry.diagnostic.group_id))
9755 } else {
9756 None
9757 }
9758 });
9759
9760 if let Some((primary_range, group_id)) = group {
9761 if self.activate_diagnostics(group_id, cx) {
9762 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9763 s.select(vec![Selection {
9764 id: selection.id,
9765 start: primary_range.start,
9766 end: primary_range.start,
9767 reversed: false,
9768 goal: SelectionGoal::None,
9769 }]);
9770 });
9771 }
9772 break;
9773 } else {
9774 // Cycle around to the start of the buffer, potentially moving back to the start of
9775 // the currently active diagnostic.
9776 active_primary_range.take();
9777 if direction == Direction::Prev {
9778 if search_start == buffer.len() {
9779 break;
9780 } else {
9781 search_start = buffer.len();
9782 }
9783 } else if search_start == 0 {
9784 break;
9785 } else {
9786 search_start = 0;
9787 }
9788 }
9789 }
9790 }
9791
9792 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9793 let snapshot = self
9794 .display_map
9795 .update(cx, |display_map, cx| display_map.snapshot(cx));
9796 let selection = self.selections.newest::<Point>(cx);
9797 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9798 }
9799
9800 fn go_to_hunk_after_position(
9801 &mut self,
9802 snapshot: &DisplaySnapshot,
9803 position: Point,
9804 cx: &mut ViewContext<'_, Editor>,
9805 ) -> Option<MultiBufferDiffHunk> {
9806 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9807 snapshot,
9808 position,
9809 false,
9810 snapshot
9811 .buffer_snapshot
9812 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9813 cx,
9814 ) {
9815 return Some(hunk);
9816 }
9817
9818 let wrapped_point = Point::zero();
9819 self.go_to_next_hunk_in_direction(
9820 snapshot,
9821 wrapped_point,
9822 true,
9823 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9824 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9825 ),
9826 cx,
9827 )
9828 }
9829
9830 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9831 let snapshot = self
9832 .display_map
9833 .update(cx, |display_map, cx| display_map.snapshot(cx));
9834 let selection = self.selections.newest::<Point>(cx);
9835
9836 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9837 }
9838
9839 fn go_to_hunk_before_position(
9840 &mut self,
9841 snapshot: &DisplaySnapshot,
9842 position: Point,
9843 cx: &mut ViewContext<'_, Editor>,
9844 ) -> Option<MultiBufferDiffHunk> {
9845 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9846 snapshot,
9847 position,
9848 false,
9849 snapshot
9850 .buffer_snapshot
9851 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9852 cx,
9853 ) {
9854 return Some(hunk);
9855 }
9856
9857 let wrapped_point = snapshot.buffer_snapshot.max_point();
9858 self.go_to_next_hunk_in_direction(
9859 snapshot,
9860 wrapped_point,
9861 true,
9862 snapshot
9863 .buffer_snapshot
9864 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9865 cx,
9866 )
9867 }
9868
9869 fn go_to_next_hunk_in_direction(
9870 &mut self,
9871 snapshot: &DisplaySnapshot,
9872 initial_point: Point,
9873 is_wrapped: bool,
9874 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9875 cx: &mut ViewContext<Editor>,
9876 ) -> Option<MultiBufferDiffHunk> {
9877 let display_point = initial_point.to_display_point(snapshot);
9878 let mut hunks = hunks
9879 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9880 .filter(|(display_hunk, _)| {
9881 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9882 })
9883 .dedup();
9884
9885 if let Some((display_hunk, hunk)) = hunks.next() {
9886 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9887 let row = display_hunk.start_display_row();
9888 let point = DisplayPoint::new(row, 0);
9889 s.select_display_ranges([point..point]);
9890 });
9891
9892 Some(hunk)
9893 } else {
9894 None
9895 }
9896 }
9897
9898 pub fn go_to_definition(
9899 &mut self,
9900 _: &GoToDefinition,
9901 cx: &mut ViewContext<Self>,
9902 ) -> Task<Result<Navigated>> {
9903 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9904 cx.spawn(|editor, mut cx| async move {
9905 if definition.await? == Navigated::Yes {
9906 return Ok(Navigated::Yes);
9907 }
9908 match editor.update(&mut cx, |editor, cx| {
9909 editor.find_all_references(&FindAllReferences, cx)
9910 })? {
9911 Some(references) => references.await,
9912 None => Ok(Navigated::No),
9913 }
9914 })
9915 }
9916
9917 pub fn go_to_declaration(
9918 &mut self,
9919 _: &GoToDeclaration,
9920 cx: &mut ViewContext<Self>,
9921 ) -> Task<Result<Navigated>> {
9922 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9923 }
9924
9925 pub fn go_to_declaration_split(
9926 &mut self,
9927 _: &GoToDeclaration,
9928 cx: &mut ViewContext<Self>,
9929 ) -> Task<Result<Navigated>> {
9930 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9931 }
9932
9933 pub fn go_to_implementation(
9934 &mut self,
9935 _: &GoToImplementation,
9936 cx: &mut ViewContext<Self>,
9937 ) -> Task<Result<Navigated>> {
9938 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9939 }
9940
9941 pub fn go_to_implementation_split(
9942 &mut self,
9943 _: &GoToImplementationSplit,
9944 cx: &mut ViewContext<Self>,
9945 ) -> Task<Result<Navigated>> {
9946 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9947 }
9948
9949 pub fn go_to_type_definition(
9950 &mut self,
9951 _: &GoToTypeDefinition,
9952 cx: &mut ViewContext<Self>,
9953 ) -> Task<Result<Navigated>> {
9954 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9955 }
9956
9957 pub fn go_to_definition_split(
9958 &mut self,
9959 _: &GoToDefinitionSplit,
9960 cx: &mut ViewContext<Self>,
9961 ) -> Task<Result<Navigated>> {
9962 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9963 }
9964
9965 pub fn go_to_type_definition_split(
9966 &mut self,
9967 _: &GoToTypeDefinitionSplit,
9968 cx: &mut ViewContext<Self>,
9969 ) -> Task<Result<Navigated>> {
9970 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9971 }
9972
9973 fn go_to_definition_of_kind(
9974 &mut self,
9975 kind: GotoDefinitionKind,
9976 split: bool,
9977 cx: &mut ViewContext<Self>,
9978 ) -> Task<Result<Navigated>> {
9979 let Some(provider) = self.semantics_provider.clone() else {
9980 return Task::ready(Ok(Navigated::No));
9981 };
9982 let head = self.selections.newest::<usize>(cx).head();
9983 let buffer = self.buffer.read(cx);
9984 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9985 text_anchor
9986 } else {
9987 return Task::ready(Ok(Navigated::No));
9988 };
9989
9990 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9991 return Task::ready(Ok(Navigated::No));
9992 };
9993
9994 cx.spawn(|editor, mut cx| async move {
9995 let definitions = definitions.await?;
9996 let navigated = editor
9997 .update(&mut cx, |editor, cx| {
9998 editor.navigate_to_hover_links(
9999 Some(kind),
10000 definitions
10001 .into_iter()
10002 .filter(|location| {
10003 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
10004 })
10005 .map(HoverLink::Text)
10006 .collect::<Vec<_>>(),
10007 split,
10008 cx,
10009 )
10010 })?
10011 .await?;
10012 anyhow::Ok(navigated)
10013 })
10014 }
10015
10016 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
10017 let position = self.selections.newest_anchor().head();
10018 let Some((buffer, buffer_position)) =
10019 self.buffer.read(cx).text_anchor_for_position(position, cx)
10020 else {
10021 return;
10022 };
10023
10024 cx.spawn(|editor, mut cx| async move {
10025 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
10026 editor.update(&mut cx, |_, cx| {
10027 cx.open_url(&url);
10028 })
10029 } else {
10030 Ok(())
10031 }
10032 })
10033 .detach();
10034 }
10035
10036 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
10037 let Some(workspace) = self.workspace() else {
10038 return;
10039 };
10040
10041 let position = self.selections.newest_anchor().head();
10042
10043 let Some((buffer, buffer_position)) =
10044 self.buffer.read(cx).text_anchor_for_position(position, cx)
10045 else {
10046 return;
10047 };
10048
10049 let project = self.project.clone();
10050
10051 cx.spawn(|_, mut cx| async move {
10052 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
10053
10054 if let Some((_, path)) = result {
10055 workspace
10056 .update(&mut cx, |workspace, cx| {
10057 workspace.open_resolved_path(path, cx)
10058 })?
10059 .await?;
10060 }
10061 anyhow::Ok(())
10062 })
10063 .detach();
10064 }
10065
10066 pub(crate) fn navigate_to_hover_links(
10067 &mut self,
10068 kind: Option<GotoDefinitionKind>,
10069 mut definitions: Vec<HoverLink>,
10070 split: bool,
10071 cx: &mut ViewContext<Editor>,
10072 ) -> Task<Result<Navigated>> {
10073 // If there is one definition, just open it directly
10074 if definitions.len() == 1 {
10075 let definition = definitions.pop().unwrap();
10076
10077 enum TargetTaskResult {
10078 Location(Option<Location>),
10079 AlreadyNavigated,
10080 }
10081
10082 let target_task = match definition {
10083 HoverLink::Text(link) => {
10084 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
10085 }
10086 HoverLink::InlayHint(lsp_location, server_id) => {
10087 let computation = self.compute_target_location(lsp_location, server_id, cx);
10088 cx.background_executor().spawn(async move {
10089 let location = computation.await?;
10090 Ok(TargetTaskResult::Location(location))
10091 })
10092 }
10093 HoverLink::Url(url) => {
10094 cx.open_url(&url);
10095 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
10096 }
10097 HoverLink::File(path) => {
10098 if let Some(workspace) = self.workspace() {
10099 cx.spawn(|_, mut cx| async move {
10100 workspace
10101 .update(&mut cx, |workspace, cx| {
10102 workspace.open_resolved_path(path, cx)
10103 })?
10104 .await
10105 .map(|_| TargetTaskResult::AlreadyNavigated)
10106 })
10107 } else {
10108 Task::ready(Ok(TargetTaskResult::Location(None)))
10109 }
10110 }
10111 };
10112 cx.spawn(|editor, mut cx| async move {
10113 let target = match target_task.await.context("target resolution task")? {
10114 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
10115 TargetTaskResult::Location(None) => return Ok(Navigated::No),
10116 TargetTaskResult::Location(Some(target)) => target,
10117 };
10118
10119 editor.update(&mut cx, |editor, cx| {
10120 let Some(workspace) = editor.workspace() else {
10121 return Navigated::No;
10122 };
10123 let pane = workspace.read(cx).active_pane().clone();
10124
10125 let range = target.range.to_offset(target.buffer.read(cx));
10126 let range = editor.range_for_match(&range);
10127
10128 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
10129 let buffer = target.buffer.read(cx);
10130 let range = check_multiline_range(buffer, range);
10131 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10132 s.select_ranges([range]);
10133 });
10134 } else {
10135 cx.window_context().defer(move |cx| {
10136 let target_editor: View<Self> =
10137 workspace.update(cx, |workspace, cx| {
10138 let pane = if split {
10139 workspace.adjacent_pane(cx)
10140 } else {
10141 workspace.active_pane().clone()
10142 };
10143
10144 workspace.open_project_item(
10145 pane,
10146 target.buffer.clone(),
10147 true,
10148 true,
10149 cx,
10150 )
10151 });
10152 target_editor.update(cx, |target_editor, cx| {
10153 // When selecting a definition in a different buffer, disable the nav history
10154 // to avoid creating a history entry at the previous cursor location.
10155 pane.update(cx, |pane, _| pane.disable_history());
10156 let buffer = target.buffer.read(cx);
10157 let range = check_multiline_range(buffer, range);
10158 target_editor.change_selections(
10159 Some(Autoscroll::focused()),
10160 cx,
10161 |s| {
10162 s.select_ranges([range]);
10163 },
10164 );
10165 pane.update(cx, |pane, _| pane.enable_history());
10166 });
10167 });
10168 }
10169 Navigated::Yes
10170 })
10171 })
10172 } else if !definitions.is_empty() {
10173 cx.spawn(|editor, mut cx| async move {
10174 let (title, location_tasks, workspace) = editor
10175 .update(&mut cx, |editor, cx| {
10176 let tab_kind = match kind {
10177 Some(GotoDefinitionKind::Implementation) => "Implementations",
10178 _ => "Definitions",
10179 };
10180 let title = definitions
10181 .iter()
10182 .find_map(|definition| match definition {
10183 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
10184 let buffer = origin.buffer.read(cx);
10185 format!(
10186 "{} for {}",
10187 tab_kind,
10188 buffer
10189 .text_for_range(origin.range.clone())
10190 .collect::<String>()
10191 )
10192 }),
10193 HoverLink::InlayHint(_, _) => None,
10194 HoverLink::Url(_) => None,
10195 HoverLink::File(_) => None,
10196 })
10197 .unwrap_or(tab_kind.to_string());
10198 let location_tasks = definitions
10199 .into_iter()
10200 .map(|definition| match definition {
10201 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
10202 HoverLink::InlayHint(lsp_location, server_id) => {
10203 editor.compute_target_location(lsp_location, server_id, cx)
10204 }
10205 HoverLink::Url(_) => Task::ready(Ok(None)),
10206 HoverLink::File(_) => Task::ready(Ok(None)),
10207 })
10208 .collect::<Vec<_>>();
10209 (title, location_tasks, editor.workspace().clone())
10210 })
10211 .context("location tasks preparation")?;
10212
10213 let locations = future::join_all(location_tasks)
10214 .await
10215 .into_iter()
10216 .filter_map(|location| location.transpose())
10217 .collect::<Result<_>>()
10218 .context("location tasks")?;
10219
10220 let Some(workspace) = workspace else {
10221 return Ok(Navigated::No);
10222 };
10223 let opened = workspace
10224 .update(&mut cx, |workspace, cx| {
10225 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10226 })
10227 .ok();
10228
10229 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10230 })
10231 } else {
10232 Task::ready(Ok(Navigated::No))
10233 }
10234 }
10235
10236 fn compute_target_location(
10237 &self,
10238 lsp_location: lsp::Location,
10239 server_id: LanguageServerId,
10240 cx: &mut ViewContext<Self>,
10241 ) -> Task<anyhow::Result<Option<Location>>> {
10242 let Some(project) = self.project.clone() else {
10243 return Task::Ready(Some(Ok(None)));
10244 };
10245
10246 cx.spawn(move |editor, mut cx| async move {
10247 let location_task = editor.update(&mut cx, |_, cx| {
10248 project.update(cx, |project, cx| {
10249 let language_server_name = project
10250 .language_server_statuses(cx)
10251 .find(|(id, _)| server_id == *id)
10252 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10253 language_server_name.map(|language_server_name| {
10254 project.open_local_buffer_via_lsp(
10255 lsp_location.uri.clone(),
10256 server_id,
10257 language_server_name,
10258 cx,
10259 )
10260 })
10261 })
10262 })?;
10263 let location = match location_task {
10264 Some(task) => Some({
10265 let target_buffer_handle = task.await.context("open local buffer")?;
10266 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10267 let target_start = target_buffer
10268 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10269 let target_end = target_buffer
10270 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10271 target_buffer.anchor_after(target_start)
10272 ..target_buffer.anchor_before(target_end)
10273 })?;
10274 Location {
10275 buffer: target_buffer_handle,
10276 range,
10277 }
10278 }),
10279 None => None,
10280 };
10281 Ok(location)
10282 })
10283 }
10284
10285 pub fn find_all_references(
10286 &mut self,
10287 _: &FindAllReferences,
10288 cx: &mut ViewContext<Self>,
10289 ) -> Option<Task<Result<Navigated>>> {
10290 let selection = self.selections.newest::<usize>(cx);
10291 let multi_buffer = self.buffer.read(cx);
10292 let head = selection.head();
10293
10294 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10295 let head_anchor = multi_buffer_snapshot.anchor_at(
10296 head,
10297 if head < selection.tail() {
10298 Bias::Right
10299 } else {
10300 Bias::Left
10301 },
10302 );
10303
10304 match self
10305 .find_all_references_task_sources
10306 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10307 {
10308 Ok(_) => {
10309 log::info!(
10310 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10311 );
10312 return None;
10313 }
10314 Err(i) => {
10315 self.find_all_references_task_sources.insert(i, head_anchor);
10316 }
10317 }
10318
10319 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10320 let workspace = self.workspace()?;
10321 let project = workspace.read(cx).project().clone();
10322 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10323 Some(cx.spawn(|editor, mut cx| async move {
10324 let _cleanup = defer({
10325 let mut cx = cx.clone();
10326 move || {
10327 let _ = editor.update(&mut cx, |editor, _| {
10328 if let Ok(i) =
10329 editor
10330 .find_all_references_task_sources
10331 .binary_search_by(|anchor| {
10332 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10333 })
10334 {
10335 editor.find_all_references_task_sources.remove(i);
10336 }
10337 });
10338 }
10339 });
10340
10341 let locations = references.await?;
10342 if locations.is_empty() {
10343 return anyhow::Ok(Navigated::No);
10344 }
10345
10346 workspace.update(&mut cx, |workspace, cx| {
10347 let title = locations
10348 .first()
10349 .as_ref()
10350 .map(|location| {
10351 let buffer = location.buffer.read(cx);
10352 format!(
10353 "References to `{}`",
10354 buffer
10355 .text_for_range(location.range.clone())
10356 .collect::<String>()
10357 )
10358 })
10359 .unwrap();
10360 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10361 Navigated::Yes
10362 })
10363 }))
10364 }
10365
10366 /// Opens a multibuffer with the given project locations in it
10367 pub fn open_locations_in_multibuffer(
10368 workspace: &mut Workspace,
10369 mut locations: Vec<Location>,
10370 title: String,
10371 split: bool,
10372 cx: &mut ViewContext<Workspace>,
10373 ) {
10374 // If there are multiple definitions, open them in a multibuffer
10375 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10376 let mut locations = locations.into_iter().peekable();
10377 let mut ranges_to_highlight = Vec::new();
10378 let capability = workspace.project().read(cx).capability();
10379
10380 let excerpt_buffer = cx.new_model(|cx| {
10381 let mut multibuffer = MultiBuffer::new(capability);
10382 while let Some(location) = locations.next() {
10383 let buffer = location.buffer.read(cx);
10384 let mut ranges_for_buffer = Vec::new();
10385 let range = location.range.to_offset(buffer);
10386 ranges_for_buffer.push(range.clone());
10387
10388 while let Some(next_location) = locations.peek() {
10389 if next_location.buffer == location.buffer {
10390 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10391 locations.next();
10392 } else {
10393 break;
10394 }
10395 }
10396
10397 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10398 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10399 location.buffer.clone(),
10400 ranges_for_buffer,
10401 DEFAULT_MULTIBUFFER_CONTEXT,
10402 cx,
10403 ))
10404 }
10405
10406 multibuffer.with_title(title)
10407 });
10408
10409 let editor = cx.new_view(|cx| {
10410 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10411 });
10412 editor.update(cx, |editor, cx| {
10413 if let Some(first_range) = ranges_to_highlight.first() {
10414 editor.change_selections(None, cx, |selections| {
10415 selections.clear_disjoint();
10416 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10417 });
10418 }
10419 editor.highlight_background::<Self>(
10420 &ranges_to_highlight,
10421 |theme| theme.editor_highlighted_line_background,
10422 cx,
10423 );
10424 });
10425
10426 let item = Box::new(editor);
10427 let item_id = item.item_id();
10428
10429 if split {
10430 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10431 } else {
10432 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10433 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10434 pane.close_current_preview_item(cx)
10435 } else {
10436 None
10437 }
10438 });
10439 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10440 }
10441 workspace.active_pane().update(cx, |pane, cx| {
10442 pane.set_preview_item_id(Some(item_id), cx);
10443 });
10444 }
10445
10446 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10447 use language::ToOffset as _;
10448
10449 let provider = self.semantics_provider.clone()?;
10450 let selection = self.selections.newest_anchor().clone();
10451 let (cursor_buffer, cursor_buffer_position) = self
10452 .buffer
10453 .read(cx)
10454 .text_anchor_for_position(selection.head(), cx)?;
10455 let (tail_buffer, cursor_buffer_position_end) = self
10456 .buffer
10457 .read(cx)
10458 .text_anchor_for_position(selection.tail(), cx)?;
10459 if tail_buffer != cursor_buffer {
10460 return None;
10461 }
10462
10463 let snapshot = cursor_buffer.read(cx).snapshot();
10464 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10465 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10466 let prepare_rename = provider
10467 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10468 .unwrap_or_else(|| Task::ready(Ok(None)));
10469 drop(snapshot);
10470
10471 Some(cx.spawn(|this, mut cx| async move {
10472 let rename_range = if let Some(range) = prepare_rename.await? {
10473 Some(range)
10474 } else {
10475 this.update(&mut cx, |this, cx| {
10476 let buffer = this.buffer.read(cx).snapshot(cx);
10477 let mut buffer_highlights = this
10478 .document_highlights_for_position(selection.head(), &buffer)
10479 .filter(|highlight| {
10480 highlight.start.excerpt_id == selection.head().excerpt_id
10481 && highlight.end.excerpt_id == selection.head().excerpt_id
10482 });
10483 buffer_highlights
10484 .next()
10485 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10486 })?
10487 };
10488 if let Some(rename_range) = rename_range {
10489 this.update(&mut cx, |this, cx| {
10490 let snapshot = cursor_buffer.read(cx).snapshot();
10491 let rename_buffer_range = rename_range.to_offset(&snapshot);
10492 let cursor_offset_in_rename_range =
10493 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10494 let cursor_offset_in_rename_range_end =
10495 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10496
10497 this.take_rename(false, cx);
10498 let buffer = this.buffer.read(cx).read(cx);
10499 let cursor_offset = selection.head().to_offset(&buffer);
10500 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10501 let rename_end = rename_start + rename_buffer_range.len();
10502 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10503 let mut old_highlight_id = None;
10504 let old_name: Arc<str> = buffer
10505 .chunks(rename_start..rename_end, true)
10506 .map(|chunk| {
10507 if old_highlight_id.is_none() {
10508 old_highlight_id = chunk.syntax_highlight_id;
10509 }
10510 chunk.text
10511 })
10512 .collect::<String>()
10513 .into();
10514
10515 drop(buffer);
10516
10517 // Position the selection in the rename editor so that it matches the current selection.
10518 this.show_local_selections = false;
10519 let rename_editor = cx.new_view(|cx| {
10520 let mut editor = Editor::single_line(cx);
10521 editor.buffer.update(cx, |buffer, cx| {
10522 buffer.edit([(0..0, old_name.clone())], None, cx)
10523 });
10524 let rename_selection_range = match cursor_offset_in_rename_range
10525 .cmp(&cursor_offset_in_rename_range_end)
10526 {
10527 Ordering::Equal => {
10528 editor.select_all(&SelectAll, cx);
10529 return editor;
10530 }
10531 Ordering::Less => {
10532 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10533 }
10534 Ordering::Greater => {
10535 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10536 }
10537 };
10538 if rename_selection_range.end > old_name.len() {
10539 editor.select_all(&SelectAll, cx);
10540 } else {
10541 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10542 s.select_ranges([rename_selection_range]);
10543 });
10544 }
10545 editor
10546 });
10547 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10548 if e == &EditorEvent::Focused {
10549 cx.emit(EditorEvent::FocusedIn)
10550 }
10551 })
10552 .detach();
10553
10554 let write_highlights =
10555 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10556 let read_highlights =
10557 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10558 let ranges = write_highlights
10559 .iter()
10560 .flat_map(|(_, ranges)| ranges.iter())
10561 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10562 .cloned()
10563 .collect();
10564
10565 this.highlight_text::<Rename>(
10566 ranges,
10567 HighlightStyle {
10568 fade_out: Some(0.6),
10569 ..Default::default()
10570 },
10571 cx,
10572 );
10573 let rename_focus_handle = rename_editor.focus_handle(cx);
10574 cx.focus(&rename_focus_handle);
10575 let block_id = this.insert_blocks(
10576 [BlockProperties {
10577 style: BlockStyle::Flex,
10578 placement: BlockPlacement::Below(range.start),
10579 height: 1,
10580 render: Arc::new({
10581 let rename_editor = rename_editor.clone();
10582 move |cx: &mut BlockContext| {
10583 let mut text_style = cx.editor_style.text.clone();
10584 if let Some(highlight_style) = old_highlight_id
10585 .and_then(|h| h.style(&cx.editor_style.syntax))
10586 {
10587 text_style = text_style.highlight(highlight_style);
10588 }
10589 div()
10590 .block_mouse_down()
10591 .pl(cx.anchor_x)
10592 .child(EditorElement::new(
10593 &rename_editor,
10594 EditorStyle {
10595 background: cx.theme().system().transparent,
10596 local_player: cx.editor_style.local_player,
10597 text: text_style,
10598 scrollbar_width: cx.editor_style.scrollbar_width,
10599 syntax: cx.editor_style.syntax.clone(),
10600 status: cx.editor_style.status.clone(),
10601 inlay_hints_style: HighlightStyle {
10602 font_weight: Some(FontWeight::BOLD),
10603 ..make_inlay_hints_style(cx)
10604 },
10605 suggestions_style: HighlightStyle {
10606 color: Some(cx.theme().status().predictive),
10607 ..HighlightStyle::default()
10608 },
10609 ..EditorStyle::default()
10610 },
10611 ))
10612 .into_any_element()
10613 }
10614 }),
10615 priority: 0,
10616 }],
10617 Some(Autoscroll::fit()),
10618 cx,
10619 )[0];
10620 this.pending_rename = Some(RenameState {
10621 range,
10622 old_name,
10623 editor: rename_editor,
10624 block_id,
10625 });
10626 })?;
10627 }
10628
10629 Ok(())
10630 }))
10631 }
10632
10633 pub fn confirm_rename(
10634 &mut self,
10635 _: &ConfirmRename,
10636 cx: &mut ViewContext<Self>,
10637 ) -> Option<Task<Result<()>>> {
10638 let rename = self.take_rename(false, cx)?;
10639 let workspace = self.workspace()?.downgrade();
10640 let (buffer, start) = self
10641 .buffer
10642 .read(cx)
10643 .text_anchor_for_position(rename.range.start, cx)?;
10644 let (end_buffer, _) = self
10645 .buffer
10646 .read(cx)
10647 .text_anchor_for_position(rename.range.end, cx)?;
10648 if buffer != end_buffer {
10649 return None;
10650 }
10651
10652 let old_name = rename.old_name;
10653 let new_name = rename.editor.read(cx).text(cx);
10654
10655 let rename = self.semantics_provider.as_ref()?.perform_rename(
10656 &buffer,
10657 start,
10658 new_name.clone(),
10659 cx,
10660 )?;
10661
10662 Some(cx.spawn(|editor, mut cx| async move {
10663 let project_transaction = rename.await?;
10664 Self::open_project_transaction(
10665 &editor,
10666 workspace,
10667 project_transaction,
10668 format!("Rename: {} → {}", old_name, new_name),
10669 cx.clone(),
10670 )
10671 .await?;
10672
10673 editor.update(&mut cx, |editor, cx| {
10674 editor.refresh_document_highlights(cx);
10675 })?;
10676 Ok(())
10677 }))
10678 }
10679
10680 fn take_rename(
10681 &mut self,
10682 moving_cursor: bool,
10683 cx: &mut ViewContext<Self>,
10684 ) -> Option<RenameState> {
10685 let rename = self.pending_rename.take()?;
10686 if rename.editor.focus_handle(cx).is_focused(cx) {
10687 cx.focus(&self.focus_handle);
10688 }
10689
10690 self.remove_blocks(
10691 [rename.block_id].into_iter().collect(),
10692 Some(Autoscroll::fit()),
10693 cx,
10694 );
10695 self.clear_highlights::<Rename>(cx);
10696 self.show_local_selections = true;
10697
10698 if moving_cursor {
10699 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10700 editor.selections.newest::<usize>(cx).head()
10701 });
10702
10703 // Update the selection to match the position of the selection inside
10704 // the rename editor.
10705 let snapshot = self.buffer.read(cx).read(cx);
10706 let rename_range = rename.range.to_offset(&snapshot);
10707 let cursor_in_editor = snapshot
10708 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10709 .min(rename_range.end);
10710 drop(snapshot);
10711
10712 self.change_selections(None, cx, |s| {
10713 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10714 });
10715 } else {
10716 self.refresh_document_highlights(cx);
10717 }
10718
10719 Some(rename)
10720 }
10721
10722 pub fn pending_rename(&self) -> Option<&RenameState> {
10723 self.pending_rename.as_ref()
10724 }
10725
10726 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10727 let project = match &self.project {
10728 Some(project) => project.clone(),
10729 None => return None,
10730 };
10731
10732 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10733 }
10734
10735 fn format_selections(
10736 &mut self,
10737 _: &FormatSelections,
10738 cx: &mut ViewContext<Self>,
10739 ) -> Option<Task<Result<()>>> {
10740 let project = match &self.project {
10741 Some(project) => project.clone(),
10742 None => return None,
10743 };
10744
10745 let selections = self
10746 .selections
10747 .all_adjusted(cx)
10748 .into_iter()
10749 .filter(|s| !s.is_empty())
10750 .collect_vec();
10751
10752 Some(self.perform_format(
10753 project,
10754 FormatTrigger::Manual,
10755 FormatTarget::Ranges(selections),
10756 cx,
10757 ))
10758 }
10759
10760 fn perform_format(
10761 &mut self,
10762 project: Model<Project>,
10763 trigger: FormatTrigger,
10764 target: FormatTarget,
10765 cx: &mut ViewContext<Self>,
10766 ) -> Task<Result<()>> {
10767 let buffer = self.buffer().clone();
10768 let mut buffers = buffer.read(cx).all_buffers();
10769 if trigger == FormatTrigger::Save {
10770 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10771 }
10772
10773 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10774 let format = project.update(cx, |project, cx| {
10775 project.format(buffers, true, trigger, target, cx)
10776 });
10777
10778 cx.spawn(|_, mut cx| async move {
10779 let transaction = futures::select_biased! {
10780 () = timeout => {
10781 log::warn!("timed out waiting for formatting");
10782 None
10783 }
10784 transaction = format.log_err().fuse() => transaction,
10785 };
10786
10787 buffer
10788 .update(&mut cx, |buffer, cx| {
10789 if let Some(transaction) = transaction {
10790 if !buffer.is_singleton() {
10791 buffer.push_transaction(&transaction.0, cx);
10792 }
10793 }
10794
10795 cx.notify();
10796 })
10797 .ok();
10798
10799 Ok(())
10800 })
10801 }
10802
10803 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10804 if let Some(project) = self.project.clone() {
10805 self.buffer.update(cx, |multi_buffer, cx| {
10806 project.update(cx, |project, cx| {
10807 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10808 });
10809 })
10810 }
10811 }
10812
10813 fn cancel_language_server_work(
10814 &mut self,
10815 _: &actions::CancelLanguageServerWork,
10816 cx: &mut ViewContext<Self>,
10817 ) {
10818 if let Some(project) = self.project.clone() {
10819 self.buffer.update(cx, |multi_buffer, cx| {
10820 project.update(cx, |project, cx| {
10821 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10822 });
10823 })
10824 }
10825 }
10826
10827 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10828 cx.show_character_palette();
10829 }
10830
10831 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10832 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10833 let buffer = self.buffer.read(cx).snapshot(cx);
10834 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10835 let is_valid = buffer
10836 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10837 .any(|entry| {
10838 entry.diagnostic.is_primary
10839 && !entry.range.is_empty()
10840 && entry.range.start == primary_range_start
10841 && entry.diagnostic.message == active_diagnostics.primary_message
10842 });
10843
10844 if is_valid != active_diagnostics.is_valid {
10845 active_diagnostics.is_valid = is_valid;
10846 let mut new_styles = HashMap::default();
10847 for (block_id, diagnostic) in &active_diagnostics.blocks {
10848 new_styles.insert(
10849 *block_id,
10850 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10851 );
10852 }
10853 self.display_map.update(cx, |display_map, _cx| {
10854 display_map.replace_blocks(new_styles)
10855 });
10856 }
10857 }
10858 }
10859
10860 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10861 self.dismiss_diagnostics(cx);
10862 let snapshot = self.snapshot(cx);
10863 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10864 let buffer = self.buffer.read(cx).snapshot(cx);
10865
10866 let mut primary_range = None;
10867 let mut primary_message = None;
10868 let mut group_end = Point::zero();
10869 let diagnostic_group = buffer
10870 .diagnostic_group::<MultiBufferPoint>(group_id)
10871 .filter_map(|entry| {
10872 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10873 && (entry.range.start.row == entry.range.end.row
10874 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10875 {
10876 return None;
10877 }
10878 if entry.range.end > group_end {
10879 group_end = entry.range.end;
10880 }
10881 if entry.diagnostic.is_primary {
10882 primary_range = Some(entry.range.clone());
10883 primary_message = Some(entry.diagnostic.message.clone());
10884 }
10885 Some(entry)
10886 })
10887 .collect::<Vec<_>>();
10888 let primary_range = primary_range?;
10889 let primary_message = primary_message?;
10890 let primary_range =
10891 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10892
10893 let blocks = display_map
10894 .insert_blocks(
10895 diagnostic_group.iter().map(|entry| {
10896 let diagnostic = entry.diagnostic.clone();
10897 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10898 BlockProperties {
10899 style: BlockStyle::Fixed,
10900 placement: BlockPlacement::Below(
10901 buffer.anchor_after(entry.range.start),
10902 ),
10903 height: message_height,
10904 render: diagnostic_block_renderer(diagnostic, None, true, true),
10905 priority: 0,
10906 }
10907 }),
10908 cx,
10909 )
10910 .into_iter()
10911 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10912 .collect();
10913
10914 Some(ActiveDiagnosticGroup {
10915 primary_range,
10916 primary_message,
10917 group_id,
10918 blocks,
10919 is_valid: true,
10920 })
10921 });
10922 self.active_diagnostics.is_some()
10923 }
10924
10925 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10926 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10927 self.display_map.update(cx, |display_map, cx| {
10928 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10929 });
10930 cx.notify();
10931 }
10932 }
10933
10934 pub fn set_selections_from_remote(
10935 &mut self,
10936 selections: Vec<Selection<Anchor>>,
10937 pending_selection: Option<Selection<Anchor>>,
10938 cx: &mut ViewContext<Self>,
10939 ) {
10940 let old_cursor_position = self.selections.newest_anchor().head();
10941 self.selections.change_with(cx, |s| {
10942 s.select_anchors(selections);
10943 if let Some(pending_selection) = pending_selection {
10944 s.set_pending(pending_selection, SelectMode::Character);
10945 } else {
10946 s.clear_pending();
10947 }
10948 });
10949 self.selections_did_change(false, &old_cursor_position, true, cx);
10950 }
10951
10952 fn push_to_selection_history(&mut self) {
10953 self.selection_history.push(SelectionHistoryEntry {
10954 selections: self.selections.disjoint_anchors(),
10955 select_next_state: self.select_next_state.clone(),
10956 select_prev_state: self.select_prev_state.clone(),
10957 add_selections_state: self.add_selections_state.clone(),
10958 });
10959 }
10960
10961 pub fn transact(
10962 &mut self,
10963 cx: &mut ViewContext<Self>,
10964 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10965 ) -> Option<TransactionId> {
10966 self.start_transaction_at(Instant::now(), cx);
10967 update(self, cx);
10968 self.end_transaction_at(Instant::now(), cx)
10969 }
10970
10971 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10972 self.end_selection(cx);
10973 if let Some(tx_id) = self
10974 .buffer
10975 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10976 {
10977 self.selection_history
10978 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10979 cx.emit(EditorEvent::TransactionBegun {
10980 transaction_id: tx_id,
10981 })
10982 }
10983 }
10984
10985 fn end_transaction_at(
10986 &mut self,
10987 now: Instant,
10988 cx: &mut ViewContext<Self>,
10989 ) -> Option<TransactionId> {
10990 if let Some(transaction_id) = self
10991 .buffer
10992 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10993 {
10994 if let Some((_, end_selections)) =
10995 self.selection_history.transaction_mut(transaction_id)
10996 {
10997 *end_selections = Some(self.selections.disjoint_anchors());
10998 } else {
10999 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
11000 }
11001
11002 cx.emit(EditorEvent::Edited { transaction_id });
11003 Some(transaction_id)
11004 } else {
11005 None
11006 }
11007 }
11008
11009 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
11010 let selection = self.selections.newest::<Point>(cx);
11011
11012 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11013 let range = if selection.is_empty() {
11014 let point = selection.head().to_display_point(&display_map);
11015 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11016 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11017 .to_point(&display_map);
11018 start..end
11019 } else {
11020 selection.range()
11021 };
11022 if display_map.folds_in_range(range).next().is_some() {
11023 self.unfold_lines(&Default::default(), cx)
11024 } else {
11025 self.fold(&Default::default(), cx)
11026 }
11027 }
11028
11029 pub fn toggle_fold_recursive(
11030 &mut self,
11031 _: &actions::ToggleFoldRecursive,
11032 cx: &mut ViewContext<Self>,
11033 ) {
11034 let selection = self.selections.newest::<Point>(cx);
11035
11036 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11037 let range = if selection.is_empty() {
11038 let point = selection.head().to_display_point(&display_map);
11039 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11040 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11041 .to_point(&display_map);
11042 start..end
11043 } else {
11044 selection.range()
11045 };
11046 if display_map.folds_in_range(range).next().is_some() {
11047 self.unfold_recursive(&Default::default(), cx)
11048 } else {
11049 self.fold_recursive(&Default::default(), cx)
11050 }
11051 }
11052
11053 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
11054 let mut to_fold = Vec::new();
11055 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11056 let selections = self.selections.all_adjusted(cx);
11057
11058 for selection in selections {
11059 let range = selection.range().sorted();
11060 let buffer_start_row = range.start.row;
11061
11062 if range.start.row != range.end.row {
11063 let mut found = false;
11064 let mut row = range.start.row;
11065 while row <= range.end.row {
11066 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11067 found = true;
11068 row = crease.range().end.row + 1;
11069 to_fold.push(crease);
11070 } else {
11071 row += 1
11072 }
11073 }
11074 if found {
11075 continue;
11076 }
11077 }
11078
11079 for row in (0..=range.start.row).rev() {
11080 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11081 if crease.range().end.row >= buffer_start_row {
11082 to_fold.push(crease);
11083 if row <= range.start.row {
11084 break;
11085 }
11086 }
11087 }
11088 }
11089 }
11090
11091 self.fold_creases(to_fold, true, cx);
11092 }
11093
11094 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
11095 let fold_at_level = fold_at.level;
11096 let snapshot = self.buffer.read(cx).snapshot(cx);
11097 let mut to_fold = Vec::new();
11098 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
11099
11100 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
11101 while start_row < end_row {
11102 match self
11103 .snapshot(cx)
11104 .crease_for_buffer_row(MultiBufferRow(start_row))
11105 {
11106 Some(crease) => {
11107 let nested_start_row = crease.range().start.row + 1;
11108 let nested_end_row = crease.range().end.row;
11109
11110 if current_level < fold_at_level {
11111 stack.push((nested_start_row, nested_end_row, current_level + 1));
11112 } else if current_level == fold_at_level {
11113 to_fold.push(crease);
11114 }
11115
11116 start_row = nested_end_row + 1;
11117 }
11118 None => start_row += 1,
11119 }
11120 }
11121 }
11122
11123 self.fold_creases(to_fold, true, cx);
11124 }
11125
11126 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
11127 let mut fold_ranges = Vec::new();
11128 let snapshot = self.buffer.read(cx).snapshot(cx);
11129
11130 for row in 0..snapshot.max_buffer_row().0 {
11131 if let Some(foldable_range) =
11132 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
11133 {
11134 fold_ranges.push(foldable_range);
11135 }
11136 }
11137
11138 self.fold_creases(fold_ranges, true, cx);
11139 }
11140
11141 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
11142 let mut to_fold = Vec::new();
11143 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11144 let selections = self.selections.all_adjusted(cx);
11145
11146 for selection in selections {
11147 let range = selection.range().sorted();
11148 let buffer_start_row = range.start.row;
11149
11150 if range.start.row != range.end.row {
11151 let mut found = false;
11152 for row in range.start.row..=range.end.row {
11153 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11154 found = true;
11155 to_fold.push(crease);
11156 }
11157 }
11158 if found {
11159 continue;
11160 }
11161 }
11162
11163 for row in (0..=range.start.row).rev() {
11164 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11165 if crease.range().end.row >= buffer_start_row {
11166 to_fold.push(crease);
11167 } else {
11168 break;
11169 }
11170 }
11171 }
11172 }
11173
11174 self.fold_creases(to_fold, true, cx);
11175 }
11176
11177 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
11178 let buffer_row = fold_at.buffer_row;
11179 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11180
11181 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
11182 let autoscroll = self
11183 .selections
11184 .all::<Point>(cx)
11185 .iter()
11186 .any(|selection| crease.range().overlaps(&selection.range()));
11187
11188 self.fold_creases(vec![crease], autoscroll, cx);
11189 }
11190 }
11191
11192 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
11193 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11194 let buffer = &display_map.buffer_snapshot;
11195 let selections = self.selections.all::<Point>(cx);
11196 let ranges = selections
11197 .iter()
11198 .map(|s| {
11199 let range = s.display_range(&display_map).sorted();
11200 let mut start = range.start.to_point(&display_map);
11201 let mut end = range.end.to_point(&display_map);
11202 start.column = 0;
11203 end.column = buffer.line_len(MultiBufferRow(end.row));
11204 start..end
11205 })
11206 .collect::<Vec<_>>();
11207
11208 self.unfold_ranges(&ranges, true, true, cx);
11209 }
11210
11211 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11212 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11213 let selections = self.selections.all::<Point>(cx);
11214 let ranges = selections
11215 .iter()
11216 .map(|s| {
11217 let mut range = s.display_range(&display_map).sorted();
11218 *range.start.column_mut() = 0;
11219 *range.end.column_mut() = display_map.line_len(range.end.row());
11220 let start = range.start.to_point(&display_map);
11221 let end = range.end.to_point(&display_map);
11222 start..end
11223 })
11224 .collect::<Vec<_>>();
11225
11226 self.unfold_ranges(&ranges, true, true, cx);
11227 }
11228
11229 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11230 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11231
11232 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11233 ..Point::new(
11234 unfold_at.buffer_row.0,
11235 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11236 );
11237
11238 let autoscroll = self
11239 .selections
11240 .all::<Point>(cx)
11241 .iter()
11242 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11243
11244 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11245 }
11246
11247 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11248 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11249 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
11250 }
11251
11252 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11253 let selections = self.selections.all::<Point>(cx);
11254 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11255 let line_mode = self.selections.line_mode;
11256 let ranges = selections
11257 .into_iter()
11258 .map(|s| {
11259 if line_mode {
11260 let start = Point::new(s.start.row, 0);
11261 let end = Point::new(
11262 s.end.row,
11263 display_map
11264 .buffer_snapshot
11265 .line_len(MultiBufferRow(s.end.row)),
11266 );
11267 Crease::simple(start..end, display_map.fold_placeholder.clone())
11268 } else {
11269 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
11270 }
11271 })
11272 .collect::<Vec<_>>();
11273 self.fold_creases(ranges, true, cx);
11274 }
11275
11276 pub fn fold_creases<T: ToOffset + Clone>(
11277 &mut self,
11278 creases: Vec<Crease<T>>,
11279 auto_scroll: bool,
11280 cx: &mut ViewContext<Self>,
11281 ) {
11282 if creases.is_empty() {
11283 return;
11284 }
11285
11286 let mut buffers_affected = HashMap::default();
11287 let multi_buffer = self.buffer().read(cx);
11288 for crease in &creases {
11289 if let Some((_, buffer, _)) =
11290 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
11291 {
11292 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11293 };
11294 }
11295
11296 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
11297
11298 if auto_scroll {
11299 self.request_autoscroll(Autoscroll::fit(), cx);
11300 }
11301
11302 for buffer in buffers_affected.into_values() {
11303 self.sync_expanded_diff_hunks(buffer, cx);
11304 }
11305
11306 cx.notify();
11307
11308 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11309 // Clear diagnostics block when folding a range that contains it.
11310 let snapshot = self.snapshot(cx);
11311 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11312 drop(snapshot);
11313 self.active_diagnostics = Some(active_diagnostics);
11314 self.dismiss_diagnostics(cx);
11315 } else {
11316 self.active_diagnostics = Some(active_diagnostics);
11317 }
11318 }
11319
11320 self.scrollbar_marker_state.dirty = true;
11321 }
11322
11323 /// Removes any folds whose ranges intersect any of the given ranges.
11324 pub fn unfold_ranges<T: ToOffset + Clone>(
11325 &mut self,
11326 ranges: &[Range<T>],
11327 inclusive: bool,
11328 auto_scroll: bool,
11329 cx: &mut ViewContext<Self>,
11330 ) {
11331 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11332 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11333 });
11334 }
11335
11336 /// Removes any folds with the given ranges.
11337 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11338 &mut self,
11339 ranges: &[Range<T>],
11340 type_id: TypeId,
11341 auto_scroll: bool,
11342 cx: &mut ViewContext<Self>,
11343 ) {
11344 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11345 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11346 });
11347 }
11348
11349 fn remove_folds_with<T: ToOffset + Clone>(
11350 &mut self,
11351 ranges: &[Range<T>],
11352 auto_scroll: bool,
11353 cx: &mut ViewContext<Self>,
11354 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11355 ) {
11356 if ranges.is_empty() {
11357 return;
11358 }
11359
11360 let mut buffers_affected = HashMap::default();
11361 let multi_buffer = self.buffer().read(cx);
11362 for range in ranges {
11363 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11364 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11365 };
11366 }
11367
11368 self.display_map.update(cx, update);
11369
11370 if auto_scroll {
11371 self.request_autoscroll(Autoscroll::fit(), cx);
11372 }
11373
11374 for buffer in buffers_affected.into_values() {
11375 self.sync_expanded_diff_hunks(buffer, cx);
11376 }
11377
11378 cx.notify();
11379 self.scrollbar_marker_state.dirty = true;
11380 self.active_indent_guides_state.dirty = true;
11381 }
11382
11383 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11384 self.display_map.read(cx).fold_placeholder.clone()
11385 }
11386
11387 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11388 if hovered != self.gutter_hovered {
11389 self.gutter_hovered = hovered;
11390 cx.notify();
11391 }
11392 }
11393
11394 pub fn insert_blocks(
11395 &mut self,
11396 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11397 autoscroll: Option<Autoscroll>,
11398 cx: &mut ViewContext<Self>,
11399 ) -> Vec<CustomBlockId> {
11400 let blocks = self
11401 .display_map
11402 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11403 if let Some(autoscroll) = autoscroll {
11404 self.request_autoscroll(autoscroll, cx);
11405 }
11406 cx.notify();
11407 blocks
11408 }
11409
11410 pub fn resize_blocks(
11411 &mut self,
11412 heights: HashMap<CustomBlockId, u32>,
11413 autoscroll: Option<Autoscroll>,
11414 cx: &mut ViewContext<Self>,
11415 ) {
11416 self.display_map
11417 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11418 if let Some(autoscroll) = autoscroll {
11419 self.request_autoscroll(autoscroll, cx);
11420 }
11421 cx.notify();
11422 }
11423
11424 pub fn replace_blocks(
11425 &mut self,
11426 renderers: HashMap<CustomBlockId, RenderBlock>,
11427 autoscroll: Option<Autoscroll>,
11428 cx: &mut ViewContext<Self>,
11429 ) {
11430 self.display_map
11431 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11432 if let Some(autoscroll) = autoscroll {
11433 self.request_autoscroll(autoscroll, cx);
11434 }
11435 cx.notify();
11436 }
11437
11438 pub fn remove_blocks(
11439 &mut self,
11440 block_ids: HashSet<CustomBlockId>,
11441 autoscroll: Option<Autoscroll>,
11442 cx: &mut ViewContext<Self>,
11443 ) {
11444 self.display_map.update(cx, |display_map, cx| {
11445 display_map.remove_blocks(block_ids, cx)
11446 });
11447 if let Some(autoscroll) = autoscroll {
11448 self.request_autoscroll(autoscroll, cx);
11449 }
11450 cx.notify();
11451 }
11452
11453 pub fn row_for_block(
11454 &self,
11455 block_id: CustomBlockId,
11456 cx: &mut ViewContext<Self>,
11457 ) -> Option<DisplayRow> {
11458 self.display_map
11459 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11460 }
11461
11462 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11463 self.focused_block = Some(focused_block);
11464 }
11465
11466 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11467 self.focused_block.take()
11468 }
11469
11470 pub fn insert_creases(
11471 &mut self,
11472 creases: impl IntoIterator<Item = Crease<Anchor>>,
11473 cx: &mut ViewContext<Self>,
11474 ) -> Vec<CreaseId> {
11475 self.display_map
11476 .update(cx, |map, cx| map.insert_creases(creases, cx))
11477 }
11478
11479 pub fn remove_creases(
11480 &mut self,
11481 ids: impl IntoIterator<Item = CreaseId>,
11482 cx: &mut ViewContext<Self>,
11483 ) {
11484 self.display_map
11485 .update(cx, |map, cx| map.remove_creases(ids, cx));
11486 }
11487
11488 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11489 self.display_map
11490 .update(cx, |map, cx| map.snapshot(cx))
11491 .longest_row()
11492 }
11493
11494 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11495 self.display_map
11496 .update(cx, |map, cx| map.snapshot(cx))
11497 .max_point()
11498 }
11499
11500 pub fn text(&self, cx: &AppContext) -> String {
11501 self.buffer.read(cx).read(cx).text()
11502 }
11503
11504 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11505 let text = self.text(cx);
11506 let text = text.trim();
11507
11508 if text.is_empty() {
11509 return None;
11510 }
11511
11512 Some(text.to_string())
11513 }
11514
11515 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11516 self.transact(cx, |this, cx| {
11517 this.buffer
11518 .read(cx)
11519 .as_singleton()
11520 .expect("you can only call set_text on editors for singleton buffers")
11521 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11522 });
11523 }
11524
11525 pub fn display_text(&self, cx: &mut AppContext) -> String {
11526 self.display_map
11527 .update(cx, |map, cx| map.snapshot(cx))
11528 .text()
11529 }
11530
11531 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11532 let mut wrap_guides = smallvec::smallvec![];
11533
11534 if self.show_wrap_guides == Some(false) {
11535 return wrap_guides;
11536 }
11537
11538 let settings = self.buffer.read(cx).settings_at(0, cx);
11539 if settings.show_wrap_guides {
11540 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11541 wrap_guides.push((soft_wrap as usize, true));
11542 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11543 wrap_guides.push((soft_wrap as usize, true));
11544 }
11545 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11546 }
11547
11548 wrap_guides
11549 }
11550
11551 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11552 let settings = self.buffer.read(cx).settings_at(0, cx);
11553 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11554 match mode {
11555 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11556 SoftWrap::None
11557 }
11558 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11559 language_settings::SoftWrap::PreferredLineLength => {
11560 SoftWrap::Column(settings.preferred_line_length)
11561 }
11562 language_settings::SoftWrap::Bounded => {
11563 SoftWrap::Bounded(settings.preferred_line_length)
11564 }
11565 }
11566 }
11567
11568 pub fn set_soft_wrap_mode(
11569 &mut self,
11570 mode: language_settings::SoftWrap,
11571 cx: &mut ViewContext<Self>,
11572 ) {
11573 self.soft_wrap_mode_override = Some(mode);
11574 cx.notify();
11575 }
11576
11577 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11578 self.text_style_refinement = Some(style);
11579 }
11580
11581 /// called by the Element so we know what style we were most recently rendered with.
11582 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11583 let rem_size = cx.rem_size();
11584 self.display_map.update(cx, |map, cx| {
11585 map.set_font(
11586 style.text.font(),
11587 style.text.font_size.to_pixels(rem_size),
11588 cx,
11589 )
11590 });
11591 self.style = Some(style);
11592 }
11593
11594 pub fn style(&self) -> Option<&EditorStyle> {
11595 self.style.as_ref()
11596 }
11597
11598 // Called by the element. This method is not designed to be called outside of the editor
11599 // element's layout code because it does not notify when rewrapping is computed synchronously.
11600 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11601 self.display_map
11602 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11603 }
11604
11605 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11606 if self.soft_wrap_mode_override.is_some() {
11607 self.soft_wrap_mode_override.take();
11608 } else {
11609 let soft_wrap = match self.soft_wrap_mode(cx) {
11610 SoftWrap::GitDiff => return,
11611 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11612 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11613 language_settings::SoftWrap::None
11614 }
11615 };
11616 self.soft_wrap_mode_override = Some(soft_wrap);
11617 }
11618 cx.notify();
11619 }
11620
11621 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11622 let Some(workspace) = self.workspace() else {
11623 return;
11624 };
11625 let fs = workspace.read(cx).app_state().fs.clone();
11626 let current_show = TabBarSettings::get_global(cx).show;
11627 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11628 setting.show = Some(!current_show);
11629 });
11630 }
11631
11632 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11633 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11634 self.buffer
11635 .read(cx)
11636 .settings_at(0, cx)
11637 .indent_guides
11638 .enabled
11639 });
11640 self.show_indent_guides = Some(!currently_enabled);
11641 cx.notify();
11642 }
11643
11644 fn should_show_indent_guides(&self) -> Option<bool> {
11645 self.show_indent_guides
11646 }
11647
11648 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11649 let mut editor_settings = EditorSettings::get_global(cx).clone();
11650 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11651 EditorSettings::override_global(editor_settings, cx);
11652 }
11653
11654 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11655 self.use_relative_line_numbers
11656 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11657 }
11658
11659 pub fn toggle_relative_line_numbers(
11660 &mut self,
11661 _: &ToggleRelativeLineNumbers,
11662 cx: &mut ViewContext<Self>,
11663 ) {
11664 let is_relative = self.should_use_relative_line_numbers(cx);
11665 self.set_relative_line_number(Some(!is_relative), cx)
11666 }
11667
11668 pub fn set_relative_line_number(
11669 &mut self,
11670 is_relative: Option<bool>,
11671 cx: &mut ViewContext<Self>,
11672 ) {
11673 self.use_relative_line_numbers = is_relative;
11674 cx.notify();
11675 }
11676
11677 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11678 self.show_gutter = show_gutter;
11679 cx.notify();
11680 }
11681
11682 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11683 self.show_line_numbers = Some(show_line_numbers);
11684 cx.notify();
11685 }
11686
11687 pub fn set_show_git_diff_gutter(
11688 &mut self,
11689 show_git_diff_gutter: bool,
11690 cx: &mut ViewContext<Self>,
11691 ) {
11692 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11693 cx.notify();
11694 }
11695
11696 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11697 self.show_code_actions = Some(show_code_actions);
11698 cx.notify();
11699 }
11700
11701 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11702 self.show_runnables = Some(show_runnables);
11703 cx.notify();
11704 }
11705
11706 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11707 if self.display_map.read(cx).masked != masked {
11708 self.display_map.update(cx, |map, _| map.masked = masked);
11709 }
11710 cx.notify()
11711 }
11712
11713 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11714 self.show_wrap_guides = Some(show_wrap_guides);
11715 cx.notify();
11716 }
11717
11718 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11719 self.show_indent_guides = Some(show_indent_guides);
11720 cx.notify();
11721 }
11722
11723 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11724 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11725 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11726 if let Some(dir) = file.abs_path(cx).parent() {
11727 return Some(dir.to_owned());
11728 }
11729 }
11730
11731 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11732 return Some(project_path.path.to_path_buf());
11733 }
11734 }
11735
11736 None
11737 }
11738
11739 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11740 self.active_excerpt(cx)?
11741 .1
11742 .read(cx)
11743 .file()
11744 .and_then(|f| f.as_local())
11745 }
11746
11747 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11748 if let Some(target) = self.target_file(cx) {
11749 cx.reveal_path(&target.abs_path(cx));
11750 }
11751 }
11752
11753 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11754 if let Some(file) = self.target_file(cx) {
11755 if let Some(path) = file.abs_path(cx).to_str() {
11756 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11757 }
11758 }
11759 }
11760
11761 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11762 if let Some(file) = self.target_file(cx) {
11763 if let Some(path) = file.path().to_str() {
11764 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11765 }
11766 }
11767 }
11768
11769 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11770 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11771
11772 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11773 self.start_git_blame(true, cx);
11774 }
11775
11776 cx.notify();
11777 }
11778
11779 pub fn toggle_git_blame_inline(
11780 &mut self,
11781 _: &ToggleGitBlameInline,
11782 cx: &mut ViewContext<Self>,
11783 ) {
11784 self.toggle_git_blame_inline_internal(true, cx);
11785 cx.notify();
11786 }
11787
11788 pub fn git_blame_inline_enabled(&self) -> bool {
11789 self.git_blame_inline_enabled
11790 }
11791
11792 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11793 self.show_selection_menu = self
11794 .show_selection_menu
11795 .map(|show_selections_menu| !show_selections_menu)
11796 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11797
11798 cx.notify();
11799 }
11800
11801 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11802 self.show_selection_menu
11803 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11804 }
11805
11806 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11807 if let Some(project) = self.project.as_ref() {
11808 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11809 return;
11810 };
11811
11812 if buffer.read(cx).file().is_none() {
11813 return;
11814 }
11815
11816 let focused = self.focus_handle(cx).contains_focused(cx);
11817
11818 let project = project.clone();
11819 let blame =
11820 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11821 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11822 self.blame = Some(blame);
11823 }
11824 }
11825
11826 fn toggle_git_blame_inline_internal(
11827 &mut self,
11828 user_triggered: bool,
11829 cx: &mut ViewContext<Self>,
11830 ) {
11831 if self.git_blame_inline_enabled {
11832 self.git_blame_inline_enabled = false;
11833 self.show_git_blame_inline = false;
11834 self.show_git_blame_inline_delay_task.take();
11835 } else {
11836 self.git_blame_inline_enabled = true;
11837 self.start_git_blame_inline(user_triggered, cx);
11838 }
11839
11840 cx.notify();
11841 }
11842
11843 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11844 self.start_git_blame(user_triggered, cx);
11845
11846 if ProjectSettings::get_global(cx)
11847 .git
11848 .inline_blame_delay()
11849 .is_some()
11850 {
11851 self.start_inline_blame_timer(cx);
11852 } else {
11853 self.show_git_blame_inline = true
11854 }
11855 }
11856
11857 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11858 self.blame.as_ref()
11859 }
11860
11861 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11862 self.show_git_blame_gutter && self.has_blame_entries(cx)
11863 }
11864
11865 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11866 self.show_git_blame_inline
11867 && self.focus_handle.is_focused(cx)
11868 && !self.newest_selection_head_on_empty_line(cx)
11869 && self.has_blame_entries(cx)
11870 }
11871
11872 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11873 self.blame()
11874 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11875 }
11876
11877 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11878 let cursor_anchor = self.selections.newest_anchor().head();
11879
11880 let snapshot = self.buffer.read(cx).snapshot(cx);
11881 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11882
11883 snapshot.line_len(buffer_row) == 0
11884 }
11885
11886 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11887 let buffer_and_selection = maybe!({
11888 let selection = self.selections.newest::<Point>(cx);
11889 let selection_range = selection.range();
11890
11891 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11892 (buffer, selection_range.start.row..selection_range.end.row)
11893 } else {
11894 let buffer_ranges = self
11895 .buffer()
11896 .read(cx)
11897 .range_to_buffer_ranges(selection_range, cx);
11898
11899 let (buffer, range, _) = if selection.reversed {
11900 buffer_ranges.first()
11901 } else {
11902 buffer_ranges.last()
11903 }?;
11904
11905 let snapshot = buffer.read(cx).snapshot();
11906 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11907 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11908 (buffer.clone(), selection)
11909 };
11910
11911 Some((buffer, selection))
11912 });
11913
11914 let Some((buffer, selection)) = buffer_and_selection else {
11915 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11916 };
11917
11918 let Some(project) = self.project.as_ref() else {
11919 return Task::ready(Err(anyhow!("editor does not have project")));
11920 };
11921
11922 project.update(cx, |project, cx| {
11923 project.get_permalink_to_line(&buffer, selection, cx)
11924 })
11925 }
11926
11927 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11928 let permalink_task = self.get_permalink_to_line(cx);
11929 let workspace = self.workspace();
11930
11931 cx.spawn(|_, mut cx| async move {
11932 match permalink_task.await {
11933 Ok(permalink) => {
11934 cx.update(|cx| {
11935 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11936 })
11937 .ok();
11938 }
11939 Err(err) => {
11940 let message = format!("Failed to copy permalink: {err}");
11941
11942 Err::<(), anyhow::Error>(err).log_err();
11943
11944 if let Some(workspace) = workspace {
11945 workspace
11946 .update(&mut cx, |workspace, cx| {
11947 struct CopyPermalinkToLine;
11948
11949 workspace.show_toast(
11950 Toast::new(
11951 NotificationId::unique::<CopyPermalinkToLine>(),
11952 message,
11953 ),
11954 cx,
11955 )
11956 })
11957 .ok();
11958 }
11959 }
11960 }
11961 })
11962 .detach();
11963 }
11964
11965 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11966 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11967 if let Some(file) = self.target_file(cx) {
11968 if let Some(path) = file.path().to_str() {
11969 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11970 }
11971 }
11972 }
11973
11974 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11975 let permalink_task = self.get_permalink_to_line(cx);
11976 let workspace = self.workspace();
11977
11978 cx.spawn(|_, mut cx| async move {
11979 match permalink_task.await {
11980 Ok(permalink) => {
11981 cx.update(|cx| {
11982 cx.open_url(permalink.as_ref());
11983 })
11984 .ok();
11985 }
11986 Err(err) => {
11987 let message = format!("Failed to open permalink: {err}");
11988
11989 Err::<(), anyhow::Error>(err).log_err();
11990
11991 if let Some(workspace) = workspace {
11992 workspace
11993 .update(&mut cx, |workspace, cx| {
11994 struct OpenPermalinkToLine;
11995
11996 workspace.show_toast(
11997 Toast::new(
11998 NotificationId::unique::<OpenPermalinkToLine>(),
11999 message,
12000 ),
12001 cx,
12002 )
12003 })
12004 .ok();
12005 }
12006 }
12007 }
12008 })
12009 .detach();
12010 }
12011
12012 /// Adds a row highlight for the given range. If a row has multiple highlights, the
12013 /// last highlight added will be used.
12014 ///
12015 /// If the range ends at the beginning of a line, then that line will not be highlighted.
12016 pub fn highlight_rows<T: 'static>(
12017 &mut self,
12018 range: Range<Anchor>,
12019 color: Hsla,
12020 should_autoscroll: bool,
12021 cx: &mut ViewContext<Self>,
12022 ) {
12023 let snapshot = self.buffer().read(cx).snapshot(cx);
12024 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12025 let ix = row_highlights.binary_search_by(|highlight| {
12026 Ordering::Equal
12027 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
12028 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
12029 });
12030
12031 if let Err(mut ix) = ix {
12032 let index = post_inc(&mut self.highlight_order);
12033
12034 // If this range intersects with the preceding highlight, then merge it with
12035 // the preceding highlight. Otherwise insert a new highlight.
12036 let mut merged = false;
12037 if ix > 0 {
12038 let prev_highlight = &mut row_highlights[ix - 1];
12039 if prev_highlight
12040 .range
12041 .end
12042 .cmp(&range.start, &snapshot)
12043 .is_ge()
12044 {
12045 ix -= 1;
12046 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
12047 prev_highlight.range.end = range.end;
12048 }
12049 merged = true;
12050 prev_highlight.index = index;
12051 prev_highlight.color = color;
12052 prev_highlight.should_autoscroll = should_autoscroll;
12053 }
12054 }
12055
12056 if !merged {
12057 row_highlights.insert(
12058 ix,
12059 RowHighlight {
12060 range: range.clone(),
12061 index,
12062 color,
12063 should_autoscroll,
12064 },
12065 );
12066 }
12067
12068 // If any of the following highlights intersect with this one, merge them.
12069 while let Some(next_highlight) = row_highlights.get(ix + 1) {
12070 let highlight = &row_highlights[ix];
12071 if next_highlight
12072 .range
12073 .start
12074 .cmp(&highlight.range.end, &snapshot)
12075 .is_le()
12076 {
12077 if next_highlight
12078 .range
12079 .end
12080 .cmp(&highlight.range.end, &snapshot)
12081 .is_gt()
12082 {
12083 row_highlights[ix].range.end = next_highlight.range.end;
12084 }
12085 row_highlights.remove(ix + 1);
12086 } else {
12087 break;
12088 }
12089 }
12090 }
12091 }
12092
12093 /// Remove any highlighted row ranges of the given type that intersect the
12094 /// given ranges.
12095 pub fn remove_highlighted_rows<T: 'static>(
12096 &mut self,
12097 ranges_to_remove: Vec<Range<Anchor>>,
12098 cx: &mut ViewContext<Self>,
12099 ) {
12100 let snapshot = self.buffer().read(cx).snapshot(cx);
12101 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12102 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
12103 row_highlights.retain(|highlight| {
12104 while let Some(range_to_remove) = ranges_to_remove.peek() {
12105 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
12106 Ordering::Less | Ordering::Equal => {
12107 ranges_to_remove.next();
12108 }
12109 Ordering::Greater => {
12110 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
12111 Ordering::Less | Ordering::Equal => {
12112 return false;
12113 }
12114 Ordering::Greater => break,
12115 }
12116 }
12117 }
12118 }
12119
12120 true
12121 })
12122 }
12123
12124 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
12125 pub fn clear_row_highlights<T: 'static>(&mut self) {
12126 self.highlighted_rows.remove(&TypeId::of::<T>());
12127 }
12128
12129 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
12130 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
12131 self.highlighted_rows
12132 .get(&TypeId::of::<T>())
12133 .map_or(&[] as &[_], |vec| vec.as_slice())
12134 .iter()
12135 .map(|highlight| (highlight.range.clone(), highlight.color))
12136 }
12137
12138 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
12139 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
12140 /// Allows to ignore certain kinds of highlights.
12141 pub fn highlighted_display_rows(
12142 &mut self,
12143 cx: &mut WindowContext,
12144 ) -> BTreeMap<DisplayRow, Hsla> {
12145 let snapshot = self.snapshot(cx);
12146 let mut used_highlight_orders = HashMap::default();
12147 self.highlighted_rows
12148 .iter()
12149 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
12150 .fold(
12151 BTreeMap::<DisplayRow, Hsla>::new(),
12152 |mut unique_rows, highlight| {
12153 let start = highlight.range.start.to_display_point(&snapshot);
12154 let end = highlight.range.end.to_display_point(&snapshot);
12155 let start_row = start.row().0;
12156 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12157 && end.column() == 0
12158 {
12159 end.row().0.saturating_sub(1)
12160 } else {
12161 end.row().0
12162 };
12163 for row in start_row..=end_row {
12164 let used_index =
12165 used_highlight_orders.entry(row).or_insert(highlight.index);
12166 if highlight.index >= *used_index {
12167 *used_index = highlight.index;
12168 unique_rows.insert(DisplayRow(row), highlight.color);
12169 }
12170 }
12171 unique_rows
12172 },
12173 )
12174 }
12175
12176 pub fn highlighted_display_row_for_autoscroll(
12177 &self,
12178 snapshot: &DisplaySnapshot,
12179 ) -> Option<DisplayRow> {
12180 self.highlighted_rows
12181 .values()
12182 .flat_map(|highlighted_rows| highlighted_rows.iter())
12183 .filter_map(|highlight| {
12184 if highlight.should_autoscroll {
12185 Some(highlight.range.start.to_display_point(snapshot).row())
12186 } else {
12187 None
12188 }
12189 })
12190 .min()
12191 }
12192
12193 pub fn set_search_within_ranges(
12194 &mut self,
12195 ranges: &[Range<Anchor>],
12196 cx: &mut ViewContext<Self>,
12197 ) {
12198 self.highlight_background::<SearchWithinRange>(
12199 ranges,
12200 |colors| colors.editor_document_highlight_read_background,
12201 cx,
12202 )
12203 }
12204
12205 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12206 self.breadcrumb_header = Some(new_header);
12207 }
12208
12209 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12210 self.clear_background_highlights::<SearchWithinRange>(cx);
12211 }
12212
12213 pub fn highlight_background<T: 'static>(
12214 &mut self,
12215 ranges: &[Range<Anchor>],
12216 color_fetcher: fn(&ThemeColors) -> Hsla,
12217 cx: &mut ViewContext<Self>,
12218 ) {
12219 self.background_highlights
12220 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12221 self.scrollbar_marker_state.dirty = true;
12222 cx.notify();
12223 }
12224
12225 pub fn clear_background_highlights<T: 'static>(
12226 &mut self,
12227 cx: &mut ViewContext<Self>,
12228 ) -> Option<BackgroundHighlight> {
12229 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12230 if !text_highlights.1.is_empty() {
12231 self.scrollbar_marker_state.dirty = true;
12232 cx.notify();
12233 }
12234 Some(text_highlights)
12235 }
12236
12237 pub fn highlight_gutter<T: 'static>(
12238 &mut self,
12239 ranges: &[Range<Anchor>],
12240 color_fetcher: fn(&AppContext) -> Hsla,
12241 cx: &mut ViewContext<Self>,
12242 ) {
12243 self.gutter_highlights
12244 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12245 cx.notify();
12246 }
12247
12248 pub fn clear_gutter_highlights<T: 'static>(
12249 &mut self,
12250 cx: &mut ViewContext<Self>,
12251 ) -> Option<GutterHighlight> {
12252 cx.notify();
12253 self.gutter_highlights.remove(&TypeId::of::<T>())
12254 }
12255
12256 #[cfg(feature = "test-support")]
12257 pub fn all_text_background_highlights(
12258 &mut self,
12259 cx: &mut ViewContext<Self>,
12260 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12261 let snapshot = self.snapshot(cx);
12262 let buffer = &snapshot.buffer_snapshot;
12263 let start = buffer.anchor_before(0);
12264 let end = buffer.anchor_after(buffer.len());
12265 let theme = cx.theme().colors();
12266 self.background_highlights_in_range(start..end, &snapshot, theme)
12267 }
12268
12269 #[cfg(feature = "test-support")]
12270 pub fn search_background_highlights(
12271 &mut self,
12272 cx: &mut ViewContext<Self>,
12273 ) -> Vec<Range<Point>> {
12274 let snapshot = self.buffer().read(cx).snapshot(cx);
12275
12276 let highlights = self
12277 .background_highlights
12278 .get(&TypeId::of::<items::BufferSearchHighlights>());
12279
12280 if let Some((_color, ranges)) = highlights {
12281 ranges
12282 .iter()
12283 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12284 .collect_vec()
12285 } else {
12286 vec![]
12287 }
12288 }
12289
12290 fn document_highlights_for_position<'a>(
12291 &'a self,
12292 position: Anchor,
12293 buffer: &'a MultiBufferSnapshot,
12294 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12295 let read_highlights = self
12296 .background_highlights
12297 .get(&TypeId::of::<DocumentHighlightRead>())
12298 .map(|h| &h.1);
12299 let write_highlights = self
12300 .background_highlights
12301 .get(&TypeId::of::<DocumentHighlightWrite>())
12302 .map(|h| &h.1);
12303 let left_position = position.bias_left(buffer);
12304 let right_position = position.bias_right(buffer);
12305 read_highlights
12306 .into_iter()
12307 .chain(write_highlights)
12308 .flat_map(move |ranges| {
12309 let start_ix = match ranges.binary_search_by(|probe| {
12310 let cmp = probe.end.cmp(&left_position, buffer);
12311 if cmp.is_ge() {
12312 Ordering::Greater
12313 } else {
12314 Ordering::Less
12315 }
12316 }) {
12317 Ok(i) | Err(i) => i,
12318 };
12319
12320 ranges[start_ix..]
12321 .iter()
12322 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12323 })
12324 }
12325
12326 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12327 self.background_highlights
12328 .get(&TypeId::of::<T>())
12329 .map_or(false, |(_, highlights)| !highlights.is_empty())
12330 }
12331
12332 pub fn background_highlights_in_range(
12333 &self,
12334 search_range: Range<Anchor>,
12335 display_snapshot: &DisplaySnapshot,
12336 theme: &ThemeColors,
12337 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12338 let mut results = Vec::new();
12339 for (color_fetcher, ranges) in self.background_highlights.values() {
12340 let color = color_fetcher(theme);
12341 let start_ix = match ranges.binary_search_by(|probe| {
12342 let cmp = probe
12343 .end
12344 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12345 if cmp.is_gt() {
12346 Ordering::Greater
12347 } else {
12348 Ordering::Less
12349 }
12350 }) {
12351 Ok(i) | Err(i) => i,
12352 };
12353 for range in &ranges[start_ix..] {
12354 if range
12355 .start
12356 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12357 .is_ge()
12358 {
12359 break;
12360 }
12361
12362 let start = range.start.to_display_point(display_snapshot);
12363 let end = range.end.to_display_point(display_snapshot);
12364 results.push((start..end, color))
12365 }
12366 }
12367 results
12368 }
12369
12370 pub fn background_highlight_row_ranges<T: 'static>(
12371 &self,
12372 search_range: Range<Anchor>,
12373 display_snapshot: &DisplaySnapshot,
12374 count: usize,
12375 ) -> Vec<RangeInclusive<DisplayPoint>> {
12376 let mut results = Vec::new();
12377 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12378 return vec![];
12379 };
12380
12381 let start_ix = match ranges.binary_search_by(|probe| {
12382 let cmp = probe
12383 .end
12384 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12385 if cmp.is_gt() {
12386 Ordering::Greater
12387 } else {
12388 Ordering::Less
12389 }
12390 }) {
12391 Ok(i) | Err(i) => i,
12392 };
12393 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12394 if let (Some(start_display), Some(end_display)) = (start, end) {
12395 results.push(
12396 start_display.to_display_point(display_snapshot)
12397 ..=end_display.to_display_point(display_snapshot),
12398 );
12399 }
12400 };
12401 let mut start_row: Option<Point> = None;
12402 let mut end_row: Option<Point> = None;
12403 if ranges.len() > count {
12404 return Vec::new();
12405 }
12406 for range in &ranges[start_ix..] {
12407 if range
12408 .start
12409 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12410 .is_ge()
12411 {
12412 break;
12413 }
12414 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12415 if let Some(current_row) = &end_row {
12416 if end.row == current_row.row {
12417 continue;
12418 }
12419 }
12420 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12421 if start_row.is_none() {
12422 assert_eq!(end_row, None);
12423 start_row = Some(start);
12424 end_row = Some(end);
12425 continue;
12426 }
12427 if let Some(current_end) = end_row.as_mut() {
12428 if start.row > current_end.row + 1 {
12429 push_region(start_row, end_row);
12430 start_row = Some(start);
12431 end_row = Some(end);
12432 } else {
12433 // Merge two hunks.
12434 *current_end = end;
12435 }
12436 } else {
12437 unreachable!();
12438 }
12439 }
12440 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12441 push_region(start_row, end_row);
12442 results
12443 }
12444
12445 pub fn gutter_highlights_in_range(
12446 &self,
12447 search_range: Range<Anchor>,
12448 display_snapshot: &DisplaySnapshot,
12449 cx: &AppContext,
12450 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12451 let mut results = Vec::new();
12452 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12453 let color = color_fetcher(cx);
12454 let start_ix = match ranges.binary_search_by(|probe| {
12455 let cmp = probe
12456 .end
12457 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12458 if cmp.is_gt() {
12459 Ordering::Greater
12460 } else {
12461 Ordering::Less
12462 }
12463 }) {
12464 Ok(i) | Err(i) => i,
12465 };
12466 for range in &ranges[start_ix..] {
12467 if range
12468 .start
12469 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12470 .is_ge()
12471 {
12472 break;
12473 }
12474
12475 let start = range.start.to_display_point(display_snapshot);
12476 let end = range.end.to_display_point(display_snapshot);
12477 results.push((start..end, color))
12478 }
12479 }
12480 results
12481 }
12482
12483 /// Get the text ranges corresponding to the redaction query
12484 pub fn redacted_ranges(
12485 &self,
12486 search_range: Range<Anchor>,
12487 display_snapshot: &DisplaySnapshot,
12488 cx: &WindowContext,
12489 ) -> Vec<Range<DisplayPoint>> {
12490 display_snapshot
12491 .buffer_snapshot
12492 .redacted_ranges(search_range, |file| {
12493 if let Some(file) = file {
12494 file.is_private()
12495 && EditorSettings::get(
12496 Some(SettingsLocation {
12497 worktree_id: file.worktree_id(cx),
12498 path: file.path().as_ref(),
12499 }),
12500 cx,
12501 )
12502 .redact_private_values
12503 } else {
12504 false
12505 }
12506 })
12507 .map(|range| {
12508 range.start.to_display_point(display_snapshot)
12509 ..range.end.to_display_point(display_snapshot)
12510 })
12511 .collect()
12512 }
12513
12514 pub fn highlight_text<T: 'static>(
12515 &mut self,
12516 ranges: Vec<Range<Anchor>>,
12517 style: HighlightStyle,
12518 cx: &mut ViewContext<Self>,
12519 ) {
12520 self.display_map.update(cx, |map, _| {
12521 map.highlight_text(TypeId::of::<T>(), ranges, style)
12522 });
12523 cx.notify();
12524 }
12525
12526 pub(crate) fn highlight_inlays<T: 'static>(
12527 &mut self,
12528 highlights: Vec<InlayHighlight>,
12529 style: HighlightStyle,
12530 cx: &mut ViewContext<Self>,
12531 ) {
12532 self.display_map.update(cx, |map, _| {
12533 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12534 });
12535 cx.notify();
12536 }
12537
12538 pub fn text_highlights<'a, T: 'static>(
12539 &'a self,
12540 cx: &'a AppContext,
12541 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12542 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12543 }
12544
12545 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12546 let cleared = self
12547 .display_map
12548 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12549 if cleared {
12550 cx.notify();
12551 }
12552 }
12553
12554 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12555 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12556 && self.focus_handle.is_focused(cx)
12557 }
12558
12559 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12560 self.show_cursor_when_unfocused = is_enabled;
12561 cx.notify();
12562 }
12563
12564 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12565 cx.notify();
12566 }
12567
12568 fn on_buffer_event(
12569 &mut self,
12570 multibuffer: Model<MultiBuffer>,
12571 event: &multi_buffer::Event,
12572 cx: &mut ViewContext<Self>,
12573 ) {
12574 match event {
12575 multi_buffer::Event::Edited {
12576 singleton_buffer_edited,
12577 } => {
12578 self.scrollbar_marker_state.dirty = true;
12579 self.active_indent_guides_state.dirty = true;
12580 self.refresh_active_diagnostics(cx);
12581 self.refresh_code_actions(cx);
12582 if self.has_active_inline_completion(cx) {
12583 self.update_visible_inline_completion(cx);
12584 }
12585 cx.emit(EditorEvent::BufferEdited);
12586 cx.emit(SearchEvent::MatchesInvalidated);
12587 if *singleton_buffer_edited {
12588 if let Some(project) = &self.project {
12589 let project = project.read(cx);
12590 #[allow(clippy::mutable_key_type)]
12591 let languages_affected = multibuffer
12592 .read(cx)
12593 .all_buffers()
12594 .into_iter()
12595 .filter_map(|buffer| {
12596 let buffer = buffer.read(cx);
12597 let language = buffer.language()?;
12598 if project.is_local()
12599 && project.language_servers_for_buffer(buffer, cx).count() == 0
12600 {
12601 None
12602 } else {
12603 Some(language)
12604 }
12605 })
12606 .cloned()
12607 .collect::<HashSet<_>>();
12608 if !languages_affected.is_empty() {
12609 self.refresh_inlay_hints(
12610 InlayHintRefreshReason::BufferEdited(languages_affected),
12611 cx,
12612 );
12613 }
12614 }
12615 }
12616
12617 let Some(project) = &self.project else { return };
12618 let (telemetry, is_via_ssh) = {
12619 let project = project.read(cx);
12620 let telemetry = project.client().telemetry().clone();
12621 let is_via_ssh = project.is_via_ssh();
12622 (telemetry, is_via_ssh)
12623 };
12624 refresh_linked_ranges(self, cx);
12625 telemetry.log_edit_event("editor", is_via_ssh);
12626 }
12627 multi_buffer::Event::ExcerptsAdded {
12628 buffer,
12629 predecessor,
12630 excerpts,
12631 } => {
12632 self.tasks_update_task = Some(self.refresh_runnables(cx));
12633 cx.emit(EditorEvent::ExcerptsAdded {
12634 buffer: buffer.clone(),
12635 predecessor: *predecessor,
12636 excerpts: excerpts.clone(),
12637 });
12638 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12639 }
12640 multi_buffer::Event::ExcerptsRemoved { ids } => {
12641 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12642 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12643 }
12644 multi_buffer::Event::ExcerptsEdited { ids } => {
12645 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12646 }
12647 multi_buffer::Event::ExcerptsExpanded { ids } => {
12648 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12649 }
12650 multi_buffer::Event::Reparsed(buffer_id) => {
12651 self.tasks_update_task = Some(self.refresh_runnables(cx));
12652
12653 cx.emit(EditorEvent::Reparsed(*buffer_id));
12654 }
12655 multi_buffer::Event::LanguageChanged(buffer_id) => {
12656 linked_editing_ranges::refresh_linked_ranges(self, cx);
12657 cx.emit(EditorEvent::Reparsed(*buffer_id));
12658 cx.notify();
12659 }
12660 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12661 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12662 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12663 cx.emit(EditorEvent::TitleChanged)
12664 }
12665 multi_buffer::Event::DiffBaseChanged => {
12666 self.scrollbar_marker_state.dirty = true;
12667 cx.emit(EditorEvent::DiffBaseChanged);
12668 cx.notify();
12669 }
12670 multi_buffer::Event::DiffUpdated { buffer } => {
12671 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12672 cx.notify();
12673 }
12674 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12675 multi_buffer::Event::DiagnosticsUpdated => {
12676 self.refresh_active_diagnostics(cx);
12677 self.scrollbar_marker_state.dirty = true;
12678 cx.notify();
12679 }
12680 _ => {}
12681 };
12682 }
12683
12684 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12685 cx.notify();
12686 }
12687
12688 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12689 self.tasks_update_task = Some(self.refresh_runnables(cx));
12690 self.refresh_inline_completion(true, false, cx);
12691 self.refresh_inlay_hints(
12692 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12693 self.selections.newest_anchor().head(),
12694 &self.buffer.read(cx).snapshot(cx),
12695 cx,
12696 )),
12697 cx,
12698 );
12699
12700 let old_cursor_shape = self.cursor_shape;
12701
12702 {
12703 let editor_settings = EditorSettings::get_global(cx);
12704 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12705 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12706 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12707 }
12708
12709 if old_cursor_shape != self.cursor_shape {
12710 cx.emit(EditorEvent::CursorShapeChanged);
12711 }
12712
12713 let project_settings = ProjectSettings::get_global(cx);
12714 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12715
12716 if self.mode == EditorMode::Full {
12717 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12718 if self.git_blame_inline_enabled != inline_blame_enabled {
12719 self.toggle_git_blame_inline_internal(false, cx);
12720 }
12721 }
12722
12723 cx.notify();
12724 }
12725
12726 pub fn set_searchable(&mut self, searchable: bool) {
12727 self.searchable = searchable;
12728 }
12729
12730 pub fn searchable(&self) -> bool {
12731 self.searchable
12732 }
12733
12734 fn open_proposed_changes_editor(
12735 &mut self,
12736 _: &OpenProposedChangesEditor,
12737 cx: &mut ViewContext<Self>,
12738 ) {
12739 let Some(workspace) = self.workspace() else {
12740 cx.propagate();
12741 return;
12742 };
12743
12744 let selections = self.selections.all::<usize>(cx);
12745 let buffer = self.buffer.read(cx);
12746 let mut new_selections_by_buffer = HashMap::default();
12747 for selection in selections {
12748 for (buffer, range, _) in
12749 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12750 {
12751 let mut range = range.to_point(buffer.read(cx));
12752 range.start.column = 0;
12753 range.end.column = buffer.read(cx).line_len(range.end.row);
12754 new_selections_by_buffer
12755 .entry(buffer)
12756 .or_insert(Vec::new())
12757 .push(range)
12758 }
12759 }
12760
12761 let proposed_changes_buffers = new_selections_by_buffer
12762 .into_iter()
12763 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12764 .collect::<Vec<_>>();
12765 let proposed_changes_editor = cx.new_view(|cx| {
12766 ProposedChangesEditor::new(
12767 "Proposed changes",
12768 proposed_changes_buffers,
12769 self.project.clone(),
12770 cx,
12771 )
12772 });
12773
12774 cx.window_context().defer(move |cx| {
12775 workspace.update(cx, |workspace, cx| {
12776 workspace.active_pane().update(cx, |pane, cx| {
12777 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12778 });
12779 });
12780 });
12781 }
12782
12783 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12784 self.open_excerpts_common(None, true, cx)
12785 }
12786
12787 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12788 self.open_excerpts_common(None, false, cx)
12789 }
12790
12791 fn open_excerpts_common(
12792 &mut self,
12793 jump_data: Option<JumpData>,
12794 split: bool,
12795 cx: &mut ViewContext<Self>,
12796 ) {
12797 let Some(workspace) = self.workspace() else {
12798 cx.propagate();
12799 return;
12800 };
12801
12802 if self.buffer.read(cx).is_singleton() {
12803 cx.propagate();
12804 return;
12805 }
12806
12807 let mut new_selections_by_buffer = HashMap::default();
12808 match &jump_data {
12809 Some(jump_data) => {
12810 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12811 if let Some(buffer) = multi_buffer_snapshot
12812 .buffer_id_for_excerpt(jump_data.excerpt_id)
12813 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12814 {
12815 let buffer_snapshot = buffer.read(cx).snapshot();
12816 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12817 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12818 } else {
12819 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12820 };
12821 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12822 new_selections_by_buffer.insert(
12823 buffer,
12824 (
12825 vec![jump_to_offset..jump_to_offset],
12826 Some(jump_data.line_offset_from_top),
12827 ),
12828 );
12829 }
12830 }
12831 None => {
12832 let selections = self.selections.all::<usize>(cx);
12833 let buffer = self.buffer.read(cx);
12834 for selection in selections {
12835 for (mut buffer_handle, mut range, _) in
12836 buffer.range_to_buffer_ranges(selection.range(), cx)
12837 {
12838 // When editing branch buffers, jump to the corresponding location
12839 // in their base buffer.
12840 let buffer = buffer_handle.read(cx);
12841 if let Some(base_buffer) = buffer.diff_base_buffer() {
12842 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12843 buffer_handle = base_buffer;
12844 }
12845
12846 if selection.reversed {
12847 mem::swap(&mut range.start, &mut range.end);
12848 }
12849 new_selections_by_buffer
12850 .entry(buffer_handle)
12851 .or_insert((Vec::new(), None))
12852 .0
12853 .push(range)
12854 }
12855 }
12856 }
12857 }
12858
12859 if new_selections_by_buffer.is_empty() {
12860 return;
12861 }
12862
12863 // We defer the pane interaction because we ourselves are a workspace item
12864 // and activating a new item causes the pane to call a method on us reentrantly,
12865 // which panics if we're on the stack.
12866 cx.window_context().defer(move |cx| {
12867 workspace.update(cx, |workspace, cx| {
12868 let pane = if split {
12869 workspace.adjacent_pane(cx)
12870 } else {
12871 workspace.active_pane().clone()
12872 };
12873
12874 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12875 let editor =
12876 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12877 editor.update(cx, |editor, cx| {
12878 let autoscroll = match scroll_offset {
12879 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12880 None => Autoscroll::newest(),
12881 };
12882 let nav_history = editor.nav_history.take();
12883 editor.change_selections(Some(autoscroll), cx, |s| {
12884 s.select_ranges(ranges);
12885 });
12886 editor.nav_history = nav_history;
12887 });
12888 }
12889 })
12890 });
12891 }
12892
12893 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12894 let snapshot = self.buffer.read(cx).read(cx);
12895 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12896 Some(
12897 ranges
12898 .iter()
12899 .map(move |range| {
12900 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12901 })
12902 .collect(),
12903 )
12904 }
12905
12906 fn selection_replacement_ranges(
12907 &self,
12908 range: Range<OffsetUtf16>,
12909 cx: &mut AppContext,
12910 ) -> Vec<Range<OffsetUtf16>> {
12911 let selections = self.selections.all::<OffsetUtf16>(cx);
12912 let newest_selection = selections
12913 .iter()
12914 .max_by_key(|selection| selection.id)
12915 .unwrap();
12916 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12917 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12918 let snapshot = self.buffer.read(cx).read(cx);
12919 selections
12920 .into_iter()
12921 .map(|mut selection| {
12922 selection.start.0 =
12923 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12924 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12925 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12926 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12927 })
12928 .collect()
12929 }
12930
12931 fn report_editor_event(
12932 &self,
12933 operation: &'static str,
12934 file_extension: Option<String>,
12935 cx: &AppContext,
12936 ) {
12937 if cfg!(any(test, feature = "test-support")) {
12938 return;
12939 }
12940
12941 let Some(project) = &self.project else { return };
12942
12943 // If None, we are in a file without an extension
12944 let file = self
12945 .buffer
12946 .read(cx)
12947 .as_singleton()
12948 .and_then(|b| b.read(cx).file());
12949 let file_extension = file_extension.or(file
12950 .as_ref()
12951 .and_then(|file| Path::new(file.file_name(cx)).extension())
12952 .and_then(|e| e.to_str())
12953 .map(|a| a.to_string()));
12954
12955 let vim_mode = cx
12956 .global::<SettingsStore>()
12957 .raw_user_settings()
12958 .get("vim_mode")
12959 == Some(&serde_json::Value::Bool(true));
12960
12961 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12962 == language::language_settings::InlineCompletionProvider::Copilot;
12963 let copilot_enabled_for_language = self
12964 .buffer
12965 .read(cx)
12966 .settings_at(0, cx)
12967 .show_inline_completions;
12968
12969 let project = project.read(cx);
12970 let telemetry = project.client().telemetry().clone();
12971 telemetry.report_editor_event(
12972 file_extension,
12973 vim_mode,
12974 operation,
12975 copilot_enabled,
12976 copilot_enabled_for_language,
12977 project.is_via_ssh(),
12978 )
12979 }
12980
12981 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12982 /// with each line being an array of {text, highlight} objects.
12983 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12984 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12985 return;
12986 };
12987
12988 #[derive(Serialize)]
12989 struct Chunk<'a> {
12990 text: String,
12991 highlight: Option<&'a str>,
12992 }
12993
12994 let snapshot = buffer.read(cx).snapshot();
12995 let range = self
12996 .selected_text_range(false, cx)
12997 .and_then(|selection| {
12998 if selection.range.is_empty() {
12999 None
13000 } else {
13001 Some(selection.range)
13002 }
13003 })
13004 .unwrap_or_else(|| 0..snapshot.len());
13005
13006 let chunks = snapshot.chunks(range, true);
13007 let mut lines = Vec::new();
13008 let mut line: VecDeque<Chunk> = VecDeque::new();
13009
13010 let Some(style) = self.style.as_ref() else {
13011 return;
13012 };
13013
13014 for chunk in chunks {
13015 let highlight = chunk
13016 .syntax_highlight_id
13017 .and_then(|id| id.name(&style.syntax));
13018 let mut chunk_lines = chunk.text.split('\n').peekable();
13019 while let Some(text) = chunk_lines.next() {
13020 let mut merged_with_last_token = false;
13021 if let Some(last_token) = line.back_mut() {
13022 if last_token.highlight == highlight {
13023 last_token.text.push_str(text);
13024 merged_with_last_token = true;
13025 }
13026 }
13027
13028 if !merged_with_last_token {
13029 line.push_back(Chunk {
13030 text: text.into(),
13031 highlight,
13032 });
13033 }
13034
13035 if chunk_lines.peek().is_some() {
13036 if line.len() > 1 && line.front().unwrap().text.is_empty() {
13037 line.pop_front();
13038 }
13039 if line.len() > 1 && line.back().unwrap().text.is_empty() {
13040 line.pop_back();
13041 }
13042
13043 lines.push(mem::take(&mut line));
13044 }
13045 }
13046 }
13047
13048 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
13049 return;
13050 };
13051 cx.write_to_clipboard(ClipboardItem::new_string(lines));
13052 }
13053
13054 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
13055 &self.inlay_hint_cache
13056 }
13057
13058 pub fn replay_insert_event(
13059 &mut self,
13060 text: &str,
13061 relative_utf16_range: Option<Range<isize>>,
13062 cx: &mut ViewContext<Self>,
13063 ) {
13064 if !self.input_enabled {
13065 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13066 return;
13067 }
13068 if let Some(relative_utf16_range) = relative_utf16_range {
13069 let selections = self.selections.all::<OffsetUtf16>(cx);
13070 self.change_selections(None, cx, |s| {
13071 let new_ranges = selections.into_iter().map(|range| {
13072 let start = OffsetUtf16(
13073 range
13074 .head()
13075 .0
13076 .saturating_add_signed(relative_utf16_range.start),
13077 );
13078 let end = OffsetUtf16(
13079 range
13080 .head()
13081 .0
13082 .saturating_add_signed(relative_utf16_range.end),
13083 );
13084 start..end
13085 });
13086 s.select_ranges(new_ranges);
13087 });
13088 }
13089
13090 self.handle_input(text, cx);
13091 }
13092
13093 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
13094 let Some(provider) = self.semantics_provider.as_ref() else {
13095 return false;
13096 };
13097
13098 let mut supports = false;
13099 self.buffer().read(cx).for_each_buffer(|buffer| {
13100 supports |= provider.supports_inlay_hints(buffer, cx);
13101 });
13102 supports
13103 }
13104
13105 pub fn focus(&self, cx: &mut WindowContext) {
13106 cx.focus(&self.focus_handle)
13107 }
13108
13109 pub fn is_focused(&self, cx: &WindowContext) -> bool {
13110 self.focus_handle.is_focused(cx)
13111 }
13112
13113 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
13114 cx.emit(EditorEvent::Focused);
13115
13116 if let Some(descendant) = self
13117 .last_focused_descendant
13118 .take()
13119 .and_then(|descendant| descendant.upgrade())
13120 {
13121 cx.focus(&descendant);
13122 } else {
13123 if let Some(blame) = self.blame.as_ref() {
13124 blame.update(cx, GitBlame::focus)
13125 }
13126
13127 self.blink_manager.update(cx, BlinkManager::enable);
13128 self.show_cursor_names(cx);
13129 self.buffer.update(cx, |buffer, cx| {
13130 buffer.finalize_last_transaction(cx);
13131 if self.leader_peer_id.is_none() {
13132 buffer.set_active_selections(
13133 &self.selections.disjoint_anchors(),
13134 self.selections.line_mode,
13135 self.cursor_shape,
13136 cx,
13137 );
13138 }
13139 });
13140 }
13141 }
13142
13143 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13144 cx.emit(EditorEvent::FocusedIn)
13145 }
13146
13147 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13148 if event.blurred != self.focus_handle {
13149 self.last_focused_descendant = Some(event.blurred);
13150 }
13151 }
13152
13153 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13154 self.blink_manager.update(cx, BlinkManager::disable);
13155 self.buffer
13156 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13157
13158 if let Some(blame) = self.blame.as_ref() {
13159 blame.update(cx, GitBlame::blur)
13160 }
13161 if !self.hover_state.focused(cx) {
13162 hide_hover(self, cx);
13163 }
13164
13165 self.hide_context_menu(cx);
13166 cx.emit(EditorEvent::Blurred);
13167 cx.notify();
13168 }
13169
13170 pub fn register_action<A: Action>(
13171 &mut self,
13172 listener: impl Fn(&A, &mut WindowContext) + 'static,
13173 ) -> Subscription {
13174 let id = self.next_editor_action_id.post_inc();
13175 let listener = Arc::new(listener);
13176 self.editor_actions.borrow_mut().insert(
13177 id,
13178 Box::new(move |cx| {
13179 let cx = cx.window_context();
13180 let listener = listener.clone();
13181 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13182 let action = action.downcast_ref().unwrap();
13183 if phase == DispatchPhase::Bubble {
13184 listener(action, cx)
13185 }
13186 })
13187 }),
13188 );
13189
13190 let editor_actions = self.editor_actions.clone();
13191 Subscription::new(move || {
13192 editor_actions.borrow_mut().remove(&id);
13193 })
13194 }
13195
13196 pub fn file_header_size(&self) -> u32 {
13197 FILE_HEADER_HEIGHT
13198 }
13199
13200 pub fn revert(
13201 &mut self,
13202 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13203 cx: &mut ViewContext<Self>,
13204 ) {
13205 self.buffer().update(cx, |multi_buffer, cx| {
13206 for (buffer_id, changes) in revert_changes {
13207 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13208 buffer.update(cx, |buffer, cx| {
13209 buffer.edit(
13210 changes.into_iter().map(|(range, text)| {
13211 (range, text.to_string().map(Arc::<str>::from))
13212 }),
13213 None,
13214 cx,
13215 );
13216 });
13217 }
13218 }
13219 });
13220 self.change_selections(None, cx, |selections| selections.refresh());
13221 }
13222
13223 pub fn to_pixel_point(
13224 &mut self,
13225 source: multi_buffer::Anchor,
13226 editor_snapshot: &EditorSnapshot,
13227 cx: &mut ViewContext<Self>,
13228 ) -> Option<gpui::Point<Pixels>> {
13229 let source_point = source.to_display_point(editor_snapshot);
13230 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13231 }
13232
13233 pub fn display_to_pixel_point(
13234 &mut self,
13235 source: DisplayPoint,
13236 editor_snapshot: &EditorSnapshot,
13237 cx: &mut ViewContext<Self>,
13238 ) -> Option<gpui::Point<Pixels>> {
13239 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13240 let text_layout_details = self.text_layout_details(cx);
13241 let scroll_top = text_layout_details
13242 .scroll_anchor
13243 .scroll_position(editor_snapshot)
13244 .y;
13245
13246 if source.row().as_f32() < scroll_top.floor() {
13247 return None;
13248 }
13249 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13250 let source_y = line_height * (source.row().as_f32() - scroll_top);
13251 Some(gpui::Point::new(source_x, source_y))
13252 }
13253
13254 pub fn has_active_completions_menu(&self) -> bool {
13255 self.context_menu.read().as_ref().map_or(false, |menu| {
13256 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13257 })
13258 }
13259
13260 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13261 self.addons
13262 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13263 }
13264
13265 pub fn unregister_addon<T: Addon>(&mut self) {
13266 self.addons.remove(&std::any::TypeId::of::<T>());
13267 }
13268
13269 pub fn addon<T: Addon>(&self) -> Option<&T> {
13270 let type_id = std::any::TypeId::of::<T>();
13271 self.addons
13272 .get(&type_id)
13273 .and_then(|item| item.to_any().downcast_ref::<T>())
13274 }
13275}
13276
13277fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13278 let tab_size = tab_size.get() as usize;
13279 let mut width = offset;
13280
13281 for ch in text.chars() {
13282 width += if ch == '\t' {
13283 tab_size - (width % tab_size)
13284 } else {
13285 1
13286 };
13287 }
13288
13289 width - offset
13290}
13291
13292#[cfg(test)]
13293mod tests {
13294 use super::*;
13295
13296 #[test]
13297 fn test_string_size_with_expanded_tabs() {
13298 let nz = |val| NonZeroU32::new(val).unwrap();
13299 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13300 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13301 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13302 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13303 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13304 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13305 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13306 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13307 }
13308}
13309
13310/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13311struct WordBreakingTokenizer<'a> {
13312 input: &'a str,
13313}
13314
13315impl<'a> WordBreakingTokenizer<'a> {
13316 fn new(input: &'a str) -> Self {
13317 Self { input }
13318 }
13319}
13320
13321fn is_char_ideographic(ch: char) -> bool {
13322 use unicode_script::Script::*;
13323 use unicode_script::UnicodeScript;
13324 matches!(ch.script(), Han | Tangut | Yi)
13325}
13326
13327fn is_grapheme_ideographic(text: &str) -> bool {
13328 text.chars().any(is_char_ideographic)
13329}
13330
13331fn is_grapheme_whitespace(text: &str) -> bool {
13332 text.chars().any(|x| x.is_whitespace())
13333}
13334
13335fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13336 text.chars().next().map_or(false, |ch| {
13337 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13338 })
13339}
13340
13341#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13342struct WordBreakToken<'a> {
13343 token: &'a str,
13344 grapheme_len: usize,
13345 is_whitespace: bool,
13346}
13347
13348impl<'a> Iterator for WordBreakingTokenizer<'a> {
13349 /// Yields a span, the count of graphemes in the token, and whether it was
13350 /// whitespace. Note that it also breaks at word boundaries.
13351 type Item = WordBreakToken<'a>;
13352
13353 fn next(&mut self) -> Option<Self::Item> {
13354 use unicode_segmentation::UnicodeSegmentation;
13355 if self.input.is_empty() {
13356 return None;
13357 }
13358
13359 let mut iter = self.input.graphemes(true).peekable();
13360 let mut offset = 0;
13361 let mut graphemes = 0;
13362 if let Some(first_grapheme) = iter.next() {
13363 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13364 offset += first_grapheme.len();
13365 graphemes += 1;
13366 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13367 if let Some(grapheme) = iter.peek().copied() {
13368 if should_stay_with_preceding_ideograph(grapheme) {
13369 offset += grapheme.len();
13370 graphemes += 1;
13371 }
13372 }
13373 } else {
13374 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13375 let mut next_word_bound = words.peek().copied();
13376 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13377 next_word_bound = words.next();
13378 }
13379 while let Some(grapheme) = iter.peek().copied() {
13380 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13381 break;
13382 };
13383 if is_grapheme_whitespace(grapheme) != is_whitespace {
13384 break;
13385 };
13386 offset += grapheme.len();
13387 graphemes += 1;
13388 iter.next();
13389 }
13390 }
13391 let token = &self.input[..offset];
13392 self.input = &self.input[offset..];
13393 if is_whitespace {
13394 Some(WordBreakToken {
13395 token: " ",
13396 grapheme_len: 1,
13397 is_whitespace: true,
13398 })
13399 } else {
13400 Some(WordBreakToken {
13401 token,
13402 grapheme_len: graphemes,
13403 is_whitespace: false,
13404 })
13405 }
13406 } else {
13407 None
13408 }
13409 }
13410}
13411
13412#[test]
13413fn test_word_breaking_tokenizer() {
13414 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13415 ("", &[]),
13416 (" ", &[(" ", 1, true)]),
13417 ("Ʒ", &[("Ʒ", 1, false)]),
13418 ("Ǽ", &[("Ǽ", 1, false)]),
13419 ("⋑", &[("⋑", 1, false)]),
13420 ("⋑⋑", &[("⋑⋑", 2, false)]),
13421 (
13422 "原理，进而",
13423 &[
13424 ("原", 1, false),
13425 ("理，", 2, false),
13426 ("进", 1, false),
13427 ("而", 1, false),
13428 ],
13429 ),
13430 (
13431 "hello world",
13432 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13433 ),
13434 (
13435 "hello, world",
13436 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13437 ),
13438 (
13439 " hello world",
13440 &[
13441 (" ", 1, true),
13442 ("hello", 5, false),
13443 (" ", 1, true),
13444 ("world", 5, false),
13445 ],
13446 ),
13447 (
13448 "这是什么 \n 钢笔",
13449 &[
13450 ("这", 1, false),
13451 ("是", 1, false),
13452 ("什", 1, false),
13453 ("么", 1, false),
13454 (" ", 1, true),
13455 ("钢", 1, false),
13456 ("笔", 1, false),
13457 ],
13458 ),
13459 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13460 ];
13461
13462 for (input, result) in tests {
13463 assert_eq!(
13464 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13465 result
13466 .iter()
13467 .copied()
13468 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13469 token,
13470 grapheme_len,
13471 is_whitespace,
13472 })
13473 .collect::<Vec<_>>()
13474 );
13475 }
13476}
13477
13478fn wrap_with_prefix(
13479 line_prefix: String,
13480 unwrapped_text: String,
13481 wrap_column: usize,
13482 tab_size: NonZeroU32,
13483) -> String {
13484 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13485 let mut wrapped_text = String::new();
13486 let mut current_line = line_prefix.clone();
13487
13488 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13489 let mut current_line_len = line_prefix_len;
13490 for WordBreakToken {
13491 token,
13492 grapheme_len,
13493 is_whitespace,
13494 } in tokenizer
13495 {
13496 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13497 wrapped_text.push_str(current_line.trim_end());
13498 wrapped_text.push('\n');
13499 current_line.truncate(line_prefix.len());
13500 current_line_len = line_prefix_len;
13501 if !is_whitespace {
13502 current_line.push_str(token);
13503 current_line_len += grapheme_len;
13504 }
13505 } else if !is_whitespace {
13506 current_line.push_str(token);
13507 current_line_len += grapheme_len;
13508 } else if current_line_len != line_prefix_len {
13509 current_line.push(' ');
13510 current_line_len += 1;
13511 }
13512 }
13513
13514 if !current_line.is_empty() {
13515 wrapped_text.push_str(¤t_line);
13516 }
13517 wrapped_text
13518}
13519
13520#[test]
13521fn test_wrap_with_prefix() {
13522 assert_eq!(
13523 wrap_with_prefix(
13524 "# ".to_string(),
13525 "abcdefg".to_string(),
13526 4,
13527 NonZeroU32::new(4).unwrap()
13528 ),
13529 "# abcdefg"
13530 );
13531 assert_eq!(
13532 wrap_with_prefix(
13533 "".to_string(),
13534 "\thello world".to_string(),
13535 8,
13536 NonZeroU32::new(4).unwrap()
13537 ),
13538 "hello\nworld"
13539 );
13540 assert_eq!(
13541 wrap_with_prefix(
13542 "// ".to_string(),
13543 "xx \nyy zz aa bb cc".to_string(),
13544 12,
13545 NonZeroU32::new(4).unwrap()
13546 ),
13547 "// xx yy zz\n// aa bb cc"
13548 );
13549 assert_eq!(
13550 wrap_with_prefix(
13551 String::new(),
13552 "这是什么 \n 钢笔".to_string(),
13553 3,
13554 NonZeroU32::new(4).unwrap()
13555 ),
13556 "这是什\n么 钢\n笔"
13557 );
13558}
13559
13560fn is_hunk_selected(hunk: &MultiBufferDiffHunk, selections: &[Selection<Point>]) -> bool {
13561 let mut buffer_rows_for_selections = selections.iter().map(|selection| {
13562 let start = MultiBufferRow(selection.start.row);
13563 let end = MultiBufferRow(selection.end.row);
13564 start..end
13565 });
13566
13567 buffer_rows_for_selections.any(|range| does_selection_touch_hunk(&range, hunk))
13568}
13569
13570fn hunks_for_selections(
13571 multi_buffer_snapshot: &MultiBufferSnapshot,
13572 selections: &[Selection<Anchor>],
13573) -> Vec<MultiBufferDiffHunk> {
13574 let buffer_rows_for_selections = selections.iter().map(|selection| {
13575 let start = MultiBufferRow(selection.start.to_point(multi_buffer_snapshot).row);
13576 let end = MultiBufferRow(selection.end.to_point(multi_buffer_snapshot).row);
13577 start..end
13578 });
13579
13580 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13581}
13582
13583pub fn hunks_for_rows(
13584 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13585 multi_buffer_snapshot: &MultiBufferSnapshot,
13586) -> Vec<MultiBufferDiffHunk> {
13587 let mut hunks = Vec::new();
13588 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13589 HashMap::default();
13590 for selected_multi_buffer_rows in rows {
13591 let query_rows =
13592 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13593 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13594 let related_to_selection =
13595 does_selection_touch_hunk(&selected_multi_buffer_rows, &hunk);
13596 if related_to_selection {
13597 if !processed_buffer_rows
13598 .entry(hunk.buffer_id)
13599 .or_default()
13600 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13601 {
13602 continue;
13603 }
13604 hunks.push(hunk);
13605 }
13606 }
13607 }
13608
13609 hunks
13610}
13611
13612fn does_selection_touch_hunk(
13613 selected_multi_buffer_rows: &Range<MultiBufferRow>,
13614 hunk: &MultiBufferDiffHunk,
13615) -> bool {
13616 let query_rows = selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13617 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13618 // when the caret is just above or just below the deleted hunk.
13619 let allow_adjacent = hunk_status(hunk) == DiffHunkStatus::Removed;
13620 if allow_adjacent {
13621 hunk.row_range.overlaps(&query_rows)
13622 || hunk.row_range.start == query_rows.end
13623 || hunk.row_range.end == query_rows.start
13624 } else {
13625 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13626 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13627 hunk.row_range.overlaps(selected_multi_buffer_rows)
13628 || selected_multi_buffer_rows.end == hunk.row_range.start
13629 }
13630}
13631
13632pub trait CollaborationHub {
13633 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13634 fn user_participant_indices<'a>(
13635 &self,
13636 cx: &'a AppContext,
13637 ) -> &'a HashMap<u64, ParticipantIndex>;
13638 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13639}
13640
13641impl CollaborationHub for Model<Project> {
13642 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13643 self.read(cx).collaborators()
13644 }
13645
13646 fn user_participant_indices<'a>(
13647 &self,
13648 cx: &'a AppContext,
13649 ) -> &'a HashMap<u64, ParticipantIndex> {
13650 self.read(cx).user_store().read(cx).participant_indices()
13651 }
13652
13653 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13654 let this = self.read(cx);
13655 let user_ids = this.collaborators().values().map(|c| c.user_id);
13656 this.user_store().read_with(cx, |user_store, cx| {
13657 user_store.participant_names(user_ids, cx)
13658 })
13659 }
13660}
13661
13662pub trait SemanticsProvider {
13663 fn hover(
13664 &self,
13665 buffer: &Model<Buffer>,
13666 position: text::Anchor,
13667 cx: &mut AppContext,
13668 ) -> Option<Task<Vec<project::Hover>>>;
13669
13670 fn inlay_hints(
13671 &self,
13672 buffer_handle: Model<Buffer>,
13673 range: Range<text::Anchor>,
13674 cx: &mut AppContext,
13675 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13676
13677 fn resolve_inlay_hint(
13678 &self,
13679 hint: InlayHint,
13680 buffer_handle: Model<Buffer>,
13681 server_id: LanguageServerId,
13682 cx: &mut AppContext,
13683 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13684
13685 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13686
13687 fn document_highlights(
13688 &self,
13689 buffer: &Model<Buffer>,
13690 position: text::Anchor,
13691 cx: &mut AppContext,
13692 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13693
13694 fn definitions(
13695 &self,
13696 buffer: &Model<Buffer>,
13697 position: text::Anchor,
13698 kind: GotoDefinitionKind,
13699 cx: &mut AppContext,
13700 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13701
13702 fn range_for_rename(
13703 &self,
13704 buffer: &Model<Buffer>,
13705 position: text::Anchor,
13706 cx: &mut AppContext,
13707 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13708
13709 fn perform_rename(
13710 &self,
13711 buffer: &Model<Buffer>,
13712 position: text::Anchor,
13713 new_name: String,
13714 cx: &mut AppContext,
13715 ) -> Option<Task<Result<ProjectTransaction>>>;
13716}
13717
13718pub trait CompletionProvider {
13719 fn completions(
13720 &self,
13721 buffer: &Model<Buffer>,
13722 buffer_position: text::Anchor,
13723 trigger: CompletionContext,
13724 cx: &mut ViewContext<Editor>,
13725 ) -> Task<Result<Vec<Completion>>>;
13726
13727 fn resolve_completions(
13728 &self,
13729 buffer: Model<Buffer>,
13730 completion_indices: Vec<usize>,
13731 completions: Arc<RwLock<Box<[Completion]>>>,
13732 cx: &mut ViewContext<Editor>,
13733 ) -> Task<Result<bool>>;
13734
13735 fn apply_additional_edits_for_completion(
13736 &self,
13737 buffer: Model<Buffer>,
13738 completion: Completion,
13739 push_to_history: bool,
13740 cx: &mut ViewContext<Editor>,
13741 ) -> Task<Result<Option<language::Transaction>>>;
13742
13743 fn is_completion_trigger(
13744 &self,
13745 buffer: &Model<Buffer>,
13746 position: language::Anchor,
13747 text: &str,
13748 trigger_in_words: bool,
13749 cx: &mut ViewContext<Editor>,
13750 ) -> bool;
13751
13752 fn sort_completions(&self) -> bool {
13753 true
13754 }
13755}
13756
13757pub trait CodeActionProvider {
13758 fn code_actions(
13759 &self,
13760 buffer: &Model<Buffer>,
13761 range: Range<text::Anchor>,
13762 cx: &mut WindowContext,
13763 ) -> Task<Result<Vec<CodeAction>>>;
13764
13765 fn apply_code_action(
13766 &self,
13767 buffer_handle: Model<Buffer>,
13768 action: CodeAction,
13769 excerpt_id: ExcerptId,
13770 push_to_history: bool,
13771 cx: &mut WindowContext,
13772 ) -> Task<Result<ProjectTransaction>>;
13773}
13774
13775impl CodeActionProvider for Model<Project> {
13776 fn code_actions(
13777 &self,
13778 buffer: &Model<Buffer>,
13779 range: Range<text::Anchor>,
13780 cx: &mut WindowContext,
13781 ) -> Task<Result<Vec<CodeAction>>> {
13782 self.update(cx, |project, cx| {
13783 project.code_actions(buffer, range, None, cx)
13784 })
13785 }
13786
13787 fn apply_code_action(
13788 &self,
13789 buffer_handle: Model<Buffer>,
13790 action: CodeAction,
13791 _excerpt_id: ExcerptId,
13792 push_to_history: bool,
13793 cx: &mut WindowContext,
13794 ) -> Task<Result<ProjectTransaction>> {
13795 self.update(cx, |project, cx| {
13796 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13797 })
13798 }
13799}
13800
13801fn snippet_completions(
13802 project: &Project,
13803 buffer: &Model<Buffer>,
13804 buffer_position: text::Anchor,
13805 cx: &mut AppContext,
13806) -> Vec<Completion> {
13807 let language = buffer.read(cx).language_at(buffer_position);
13808 let language_name = language.as_ref().map(|language| language.lsp_id());
13809 let snippet_store = project.snippets().read(cx);
13810 let snippets = snippet_store.snippets_for(language_name, cx);
13811
13812 if snippets.is_empty() {
13813 return vec![];
13814 }
13815 let snapshot = buffer.read(cx).text_snapshot();
13816 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13817
13818 let scope = language.map(|language| language.default_scope());
13819 let classifier = CharClassifier::new(scope).for_completion(true);
13820 let mut last_word = chars
13821 .take_while(|c| classifier.is_word(*c))
13822 .collect::<String>();
13823 last_word = last_word.chars().rev().collect();
13824 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13825 let to_lsp = |point: &text::Anchor| {
13826 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13827 point_to_lsp(end)
13828 };
13829 let lsp_end = to_lsp(&buffer_position);
13830 snippets
13831 .into_iter()
13832 .filter_map(|snippet| {
13833 let matching_prefix = snippet
13834 .prefix
13835 .iter()
13836 .find(|prefix| prefix.starts_with(&last_word))?;
13837 let start = as_offset - last_word.len();
13838 let start = snapshot.anchor_before(start);
13839 let range = start..buffer_position;
13840 let lsp_start = to_lsp(&start);
13841 let lsp_range = lsp::Range {
13842 start: lsp_start,
13843 end: lsp_end,
13844 };
13845 Some(Completion {
13846 old_range: range,
13847 new_text: snippet.body.clone(),
13848 label: CodeLabel {
13849 text: matching_prefix.clone(),
13850 runs: vec![],
13851 filter_range: 0..matching_prefix.len(),
13852 },
13853 server_id: LanguageServerId(usize::MAX),
13854 documentation: snippet.description.clone().map(Documentation::SingleLine),
13855 lsp_completion: lsp::CompletionItem {
13856 label: snippet.prefix.first().unwrap().clone(),
13857 kind: Some(CompletionItemKind::SNIPPET),
13858 label_details: snippet.description.as_ref().map(|description| {
13859 lsp::CompletionItemLabelDetails {
13860 detail: Some(description.clone()),
13861 description: None,
13862 }
13863 }),
13864 insert_text_format: Some(InsertTextFormat::SNIPPET),
13865 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13866 lsp::InsertReplaceEdit {
13867 new_text: snippet.body.clone(),
13868 insert: lsp_range,
13869 replace: lsp_range,
13870 },
13871 )),
13872 filter_text: Some(snippet.body.clone()),
13873 sort_text: Some(char::MAX.to_string()),
13874 ..Default::default()
13875 },
13876 confirm: None,
13877 })
13878 })
13879 .collect()
13880}
13881
13882impl CompletionProvider for Model<Project> {
13883 fn completions(
13884 &self,
13885 buffer: &Model<Buffer>,
13886 buffer_position: text::Anchor,
13887 options: CompletionContext,
13888 cx: &mut ViewContext<Editor>,
13889 ) -> Task<Result<Vec<Completion>>> {
13890 self.update(cx, |project, cx| {
13891 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13892 let project_completions = project.completions(buffer, buffer_position, options, cx);
13893 cx.background_executor().spawn(async move {
13894 let mut completions = project_completions.await?;
13895 //let snippets = snippets.into_iter().;
13896 completions.extend(snippets);
13897 Ok(completions)
13898 })
13899 })
13900 }
13901
13902 fn resolve_completions(
13903 &self,
13904 buffer: Model<Buffer>,
13905 completion_indices: Vec<usize>,
13906 completions: Arc<RwLock<Box<[Completion]>>>,
13907 cx: &mut ViewContext<Editor>,
13908 ) -> Task<Result<bool>> {
13909 self.update(cx, |project, cx| {
13910 project.resolve_completions(buffer, completion_indices, completions, cx)
13911 })
13912 }
13913
13914 fn apply_additional_edits_for_completion(
13915 &self,
13916 buffer: Model<Buffer>,
13917 completion: Completion,
13918 push_to_history: bool,
13919 cx: &mut ViewContext<Editor>,
13920 ) -> Task<Result<Option<language::Transaction>>> {
13921 self.update(cx, |project, cx| {
13922 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13923 })
13924 }
13925
13926 fn is_completion_trigger(
13927 &self,
13928 buffer: &Model<Buffer>,
13929 position: language::Anchor,
13930 text: &str,
13931 trigger_in_words: bool,
13932 cx: &mut ViewContext<Editor>,
13933 ) -> bool {
13934 if !EditorSettings::get_global(cx).show_completions_on_input {
13935 return false;
13936 }
13937
13938 let mut chars = text.chars();
13939 let char = if let Some(char) = chars.next() {
13940 char
13941 } else {
13942 return false;
13943 };
13944 if chars.next().is_some() {
13945 return false;
13946 }
13947
13948 let buffer = buffer.read(cx);
13949 let classifier = buffer
13950 .snapshot()
13951 .char_classifier_at(position)
13952 .for_completion(true);
13953 if trigger_in_words && classifier.is_word(char) {
13954 return true;
13955 }
13956
13957 buffer.completion_triggers().contains(text)
13958 }
13959}
13960
13961impl SemanticsProvider for Model<Project> {
13962 fn hover(
13963 &self,
13964 buffer: &Model<Buffer>,
13965 position: text::Anchor,
13966 cx: &mut AppContext,
13967 ) -> Option<Task<Vec<project::Hover>>> {
13968 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13969 }
13970
13971 fn document_highlights(
13972 &self,
13973 buffer: &Model<Buffer>,
13974 position: text::Anchor,
13975 cx: &mut AppContext,
13976 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13977 Some(self.update(cx, |project, cx| {
13978 project.document_highlights(buffer, position, cx)
13979 }))
13980 }
13981
13982 fn definitions(
13983 &self,
13984 buffer: &Model<Buffer>,
13985 position: text::Anchor,
13986 kind: GotoDefinitionKind,
13987 cx: &mut AppContext,
13988 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13989 Some(self.update(cx, |project, cx| match kind {
13990 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13991 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13992 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13993 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13994 }))
13995 }
13996
13997 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13998 // TODO: make this work for remote projects
13999 self.read(cx)
14000 .language_servers_for_buffer(buffer.read(cx), cx)
14001 .any(
14002 |(_, server)| match server.capabilities().inlay_hint_provider {
14003 Some(lsp::OneOf::Left(enabled)) => enabled,
14004 Some(lsp::OneOf::Right(_)) => true,
14005 None => false,
14006 },
14007 )
14008 }
14009
14010 fn inlay_hints(
14011 &self,
14012 buffer_handle: Model<Buffer>,
14013 range: Range<text::Anchor>,
14014 cx: &mut AppContext,
14015 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
14016 Some(self.update(cx, |project, cx| {
14017 project.inlay_hints(buffer_handle, range, cx)
14018 }))
14019 }
14020
14021 fn resolve_inlay_hint(
14022 &self,
14023 hint: InlayHint,
14024 buffer_handle: Model<Buffer>,
14025 server_id: LanguageServerId,
14026 cx: &mut AppContext,
14027 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14028 Some(self.update(cx, |project, cx| {
14029 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14030 }))
14031 }
14032
14033 fn range_for_rename(
14034 &self,
14035 buffer: &Model<Buffer>,
14036 position: text::Anchor,
14037 cx: &mut AppContext,
14038 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14039 Some(self.update(cx, |project, cx| {
14040 project.prepare_rename(buffer.clone(), position, cx)
14041 }))
14042 }
14043
14044 fn perform_rename(
14045 &self,
14046 buffer: &Model<Buffer>,
14047 position: text::Anchor,
14048 new_name: String,
14049 cx: &mut AppContext,
14050 ) -> Option<Task<Result<ProjectTransaction>>> {
14051 Some(self.update(cx, |project, cx| {
14052 project.perform_rename(buffer.clone(), position, new_name, cx)
14053 }))
14054 }
14055}
14056
14057fn inlay_hint_settings(
14058 location: Anchor,
14059 snapshot: &MultiBufferSnapshot,
14060 cx: &mut ViewContext<'_, Editor>,
14061) -> InlayHintSettings {
14062 let file = snapshot.file_at(location);
14063 let language = snapshot.language_at(location).map(|l| l.name());
14064 language_settings(language, file, cx).inlay_hints
14065}
14066
14067fn consume_contiguous_rows(
14068 contiguous_row_selections: &mut Vec<Selection<Point>>,
14069 selection: &Selection<Point>,
14070 display_map: &DisplaySnapshot,
14071 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14072) -> (MultiBufferRow, MultiBufferRow) {
14073 contiguous_row_selections.push(selection.clone());
14074 let start_row = MultiBufferRow(selection.start.row);
14075 let mut end_row = ending_row(selection, display_map);
14076
14077 while let Some(next_selection) = selections.peek() {
14078 if next_selection.start.row <= end_row.0 {
14079 end_row = ending_row(next_selection, display_map);
14080 contiguous_row_selections.push(selections.next().unwrap().clone());
14081 } else {
14082 break;
14083 }
14084 }
14085 (start_row, end_row)
14086}
14087
14088fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14089 if next_selection.end.column > 0 || next_selection.is_empty() {
14090 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14091 } else {
14092 MultiBufferRow(next_selection.end.row)
14093 }
14094}
14095
14096impl EditorSnapshot {
14097 pub fn remote_selections_in_range<'a>(
14098 &'a self,
14099 range: &'a Range<Anchor>,
14100 collaboration_hub: &dyn CollaborationHub,
14101 cx: &'a AppContext,
14102 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14103 let participant_names = collaboration_hub.user_names(cx);
14104 let participant_indices = collaboration_hub.user_participant_indices(cx);
14105 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14106 let collaborators_by_replica_id = collaborators_by_peer_id
14107 .iter()
14108 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14109 .collect::<HashMap<_, _>>();
14110 self.buffer_snapshot
14111 .selections_in_range(range, false)
14112 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14113 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14114 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14115 let user_name = participant_names.get(&collaborator.user_id).cloned();
14116 Some(RemoteSelection {
14117 replica_id,
14118 selection,
14119 cursor_shape,
14120 line_mode,
14121 participant_index,
14122 peer_id: collaborator.peer_id,
14123 user_name,
14124 })
14125 })
14126 }
14127
14128 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14129 self.display_snapshot.buffer_snapshot.language_at(position)
14130 }
14131
14132 pub fn is_focused(&self) -> bool {
14133 self.is_focused
14134 }
14135
14136 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14137 self.placeholder_text.as_ref()
14138 }
14139
14140 pub fn scroll_position(&self) -> gpui::Point<f32> {
14141 self.scroll_anchor.scroll_position(&self.display_snapshot)
14142 }
14143
14144 fn gutter_dimensions(
14145 &self,
14146 font_id: FontId,
14147 font_size: Pixels,
14148 em_width: Pixels,
14149 em_advance: Pixels,
14150 max_line_number_width: Pixels,
14151 cx: &AppContext,
14152 ) -> GutterDimensions {
14153 if !self.show_gutter {
14154 return GutterDimensions::default();
14155 }
14156 let descent = cx.text_system().descent(font_id, font_size);
14157
14158 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14159 matches!(
14160 ProjectSettings::get_global(cx).git.git_gutter,
14161 Some(GitGutterSetting::TrackedFiles)
14162 )
14163 });
14164 let gutter_settings = EditorSettings::get_global(cx).gutter;
14165 let show_line_numbers = self
14166 .show_line_numbers
14167 .unwrap_or(gutter_settings.line_numbers);
14168 let line_gutter_width = if show_line_numbers {
14169 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14170 let min_width_for_number_on_gutter = em_advance * 4.0;
14171 max_line_number_width.max(min_width_for_number_on_gutter)
14172 } else {
14173 0.0.into()
14174 };
14175
14176 let show_code_actions = self
14177 .show_code_actions
14178 .unwrap_or(gutter_settings.code_actions);
14179
14180 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14181
14182 let git_blame_entries_width =
14183 self.git_blame_gutter_max_author_length
14184 .map(|max_author_length| {
14185 // Length of the author name, but also space for the commit hash,
14186 // the spacing and the timestamp.
14187 let max_char_count = max_author_length
14188 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14189 + 7 // length of commit sha
14190 + 14 // length of max relative timestamp ("60 minutes ago")
14191 + 4; // gaps and margins
14192
14193 em_advance * max_char_count
14194 });
14195
14196 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14197 left_padding += if show_code_actions || show_runnables {
14198 em_width * 3.0
14199 } else if show_git_gutter && show_line_numbers {
14200 em_width * 2.0
14201 } else if show_git_gutter || show_line_numbers {
14202 em_width
14203 } else {
14204 px(0.)
14205 };
14206
14207 let right_padding = if gutter_settings.folds && show_line_numbers {
14208 em_width * 4.0
14209 } else if gutter_settings.folds {
14210 em_width * 3.0
14211 } else if show_line_numbers {
14212 em_width
14213 } else {
14214 px(0.)
14215 };
14216
14217 GutterDimensions {
14218 left_padding,
14219 right_padding,
14220 width: line_gutter_width + left_padding + right_padding,
14221 margin: -descent,
14222 git_blame_entries_width,
14223 }
14224 }
14225
14226 pub fn render_crease_toggle(
14227 &self,
14228 buffer_row: MultiBufferRow,
14229 row_contains_cursor: bool,
14230 editor: View<Editor>,
14231 cx: &mut WindowContext,
14232 ) -> Option<AnyElement> {
14233 let folded = self.is_line_folded(buffer_row);
14234 let mut is_foldable = false;
14235
14236 if let Some(crease) = self
14237 .crease_snapshot
14238 .query_row(buffer_row, &self.buffer_snapshot)
14239 {
14240 is_foldable = true;
14241 match crease {
14242 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14243 if let Some(render_toggle) = render_toggle {
14244 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14245 if folded {
14246 editor.update(cx, |editor, cx| {
14247 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14248 });
14249 } else {
14250 editor.update(cx, |editor, cx| {
14251 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14252 });
14253 }
14254 });
14255 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14256 }
14257 }
14258 }
14259 }
14260
14261 is_foldable |= self.starts_indent(buffer_row);
14262
14263 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14264 Some(
14265 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14266 .selected(folded)
14267 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14268 if folded {
14269 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14270 } else {
14271 this.fold_at(&FoldAt { buffer_row }, cx);
14272 }
14273 }))
14274 .into_any_element(),
14275 )
14276 } else {
14277 None
14278 }
14279 }
14280
14281 pub fn render_crease_trailer(
14282 &self,
14283 buffer_row: MultiBufferRow,
14284 cx: &mut WindowContext,
14285 ) -> Option<AnyElement> {
14286 let folded = self.is_line_folded(buffer_row);
14287 if let Crease::Inline { render_trailer, .. } = self
14288 .crease_snapshot
14289 .query_row(buffer_row, &self.buffer_snapshot)?
14290 {
14291 let render_trailer = render_trailer.as_ref()?;
14292 Some(render_trailer(buffer_row, folded, cx))
14293 } else {
14294 None
14295 }
14296 }
14297}
14298
14299impl Deref for EditorSnapshot {
14300 type Target = DisplaySnapshot;
14301
14302 fn deref(&self) -> &Self::Target {
14303 &self.display_snapshot
14304 }
14305}
14306
14307#[derive(Clone, Debug, PartialEq, Eq)]
14308pub enum EditorEvent {
14309 InputIgnored {
14310 text: Arc<str>,
14311 },
14312 InputHandled {
14313 utf16_range_to_replace: Option<Range<isize>>,
14314 text: Arc<str>,
14315 },
14316 ExcerptsAdded {
14317 buffer: Model<Buffer>,
14318 predecessor: ExcerptId,
14319 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14320 },
14321 ExcerptsRemoved {
14322 ids: Vec<ExcerptId>,
14323 },
14324 ExcerptsEdited {
14325 ids: Vec<ExcerptId>,
14326 },
14327 ExcerptsExpanded {
14328 ids: Vec<ExcerptId>,
14329 },
14330 BufferEdited,
14331 Edited {
14332 transaction_id: clock::Lamport,
14333 },
14334 Reparsed(BufferId),
14335 Focused,
14336 FocusedIn,
14337 Blurred,
14338 DirtyChanged,
14339 Saved,
14340 TitleChanged,
14341 DiffBaseChanged,
14342 SelectionsChanged {
14343 local: bool,
14344 },
14345 ScrollPositionChanged {
14346 local: bool,
14347 autoscroll: bool,
14348 },
14349 Closed,
14350 TransactionUndone {
14351 transaction_id: clock::Lamport,
14352 },
14353 TransactionBegun {
14354 transaction_id: clock::Lamport,
14355 },
14356 Reloaded,
14357 CursorShapeChanged,
14358}
14359
14360impl EventEmitter<EditorEvent> for Editor {}
14361
14362impl FocusableView for Editor {
14363 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14364 self.focus_handle.clone()
14365 }
14366}
14367
14368impl Render for Editor {
14369 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14370 let settings = ThemeSettings::get_global(cx);
14371
14372 let mut text_style = match self.mode {
14373 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14374 color: cx.theme().colors().editor_foreground,
14375 font_family: settings.ui_font.family.clone(),
14376 font_features: settings.ui_font.features.clone(),
14377 font_fallbacks: settings.ui_font.fallbacks.clone(),
14378 font_size: rems(0.875).into(),
14379 font_weight: settings.ui_font.weight,
14380 line_height: relative(settings.buffer_line_height.value()),
14381 ..Default::default()
14382 },
14383 EditorMode::Full => TextStyle {
14384 color: cx.theme().colors().editor_foreground,
14385 font_family: settings.buffer_font.family.clone(),
14386 font_features: settings.buffer_font.features.clone(),
14387 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14388 font_size: settings.buffer_font_size(cx).into(),
14389 font_weight: settings.buffer_font.weight,
14390 line_height: relative(settings.buffer_line_height.value()),
14391 ..Default::default()
14392 },
14393 };
14394 if let Some(text_style_refinement) = &self.text_style_refinement {
14395 text_style.refine(text_style_refinement)
14396 }
14397
14398 let background = match self.mode {
14399 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14400 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14401 EditorMode::Full => cx.theme().colors().editor_background,
14402 };
14403
14404 EditorElement::new(
14405 cx.view(),
14406 EditorStyle {
14407 background,
14408 local_player: cx.theme().players().local(),
14409 text: text_style,
14410 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14411 syntax: cx.theme().syntax().clone(),
14412 status: cx.theme().status().clone(),
14413 inlay_hints_style: make_inlay_hints_style(cx),
14414 suggestions_style: HighlightStyle {
14415 color: Some(cx.theme().status().predictive),
14416 ..HighlightStyle::default()
14417 },
14418 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14419 },
14420 )
14421 }
14422}
14423
14424impl ViewInputHandler for Editor {
14425 fn text_for_range(
14426 &mut self,
14427 range_utf16: Range<usize>,
14428 adjusted_range: &mut Option<Range<usize>>,
14429 cx: &mut ViewContext<Self>,
14430 ) -> Option<String> {
14431 let snapshot = self.buffer.read(cx).read(cx);
14432 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14433 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14434 if (start.0..end.0) != range_utf16 {
14435 adjusted_range.replace(start.0..end.0);
14436 }
14437 Some(snapshot.text_for_range(start..end).collect())
14438 }
14439
14440 fn selected_text_range(
14441 &mut self,
14442 ignore_disabled_input: bool,
14443 cx: &mut ViewContext<Self>,
14444 ) -> Option<UTF16Selection> {
14445 // Prevent the IME menu from appearing when holding down an alphabetic key
14446 // while input is disabled.
14447 if !ignore_disabled_input && !self.input_enabled {
14448 return None;
14449 }
14450
14451 let selection = self.selections.newest::<OffsetUtf16>(cx);
14452 let range = selection.range();
14453
14454 Some(UTF16Selection {
14455 range: range.start.0..range.end.0,
14456 reversed: selection.reversed,
14457 })
14458 }
14459
14460 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14461 let snapshot = self.buffer.read(cx).read(cx);
14462 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14463 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14464 }
14465
14466 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14467 self.clear_highlights::<InputComposition>(cx);
14468 self.ime_transaction.take();
14469 }
14470
14471 fn replace_text_in_range(
14472 &mut self,
14473 range_utf16: Option<Range<usize>>,
14474 text: &str,
14475 cx: &mut ViewContext<Self>,
14476 ) {
14477 if !self.input_enabled {
14478 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14479 return;
14480 }
14481
14482 self.transact(cx, |this, cx| {
14483 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14484 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14485 Some(this.selection_replacement_ranges(range_utf16, cx))
14486 } else {
14487 this.marked_text_ranges(cx)
14488 };
14489
14490 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14491 let newest_selection_id = this.selections.newest_anchor().id;
14492 this.selections
14493 .all::<OffsetUtf16>(cx)
14494 .iter()
14495 .zip(ranges_to_replace.iter())
14496 .find_map(|(selection, range)| {
14497 if selection.id == newest_selection_id {
14498 Some(
14499 (range.start.0 as isize - selection.head().0 as isize)
14500 ..(range.end.0 as isize - selection.head().0 as isize),
14501 )
14502 } else {
14503 None
14504 }
14505 })
14506 });
14507
14508 cx.emit(EditorEvent::InputHandled {
14509 utf16_range_to_replace: range_to_replace,
14510 text: text.into(),
14511 });
14512
14513 if let Some(new_selected_ranges) = new_selected_ranges {
14514 this.change_selections(None, cx, |selections| {
14515 selections.select_ranges(new_selected_ranges)
14516 });
14517 this.backspace(&Default::default(), cx);
14518 }
14519
14520 this.handle_input(text, cx);
14521 });
14522
14523 if let Some(transaction) = self.ime_transaction {
14524 self.buffer.update(cx, |buffer, cx| {
14525 buffer.group_until_transaction(transaction, cx);
14526 });
14527 }
14528
14529 self.unmark_text(cx);
14530 }
14531
14532 fn replace_and_mark_text_in_range(
14533 &mut self,
14534 range_utf16: Option<Range<usize>>,
14535 text: &str,
14536 new_selected_range_utf16: Option<Range<usize>>,
14537 cx: &mut ViewContext<Self>,
14538 ) {
14539 if !self.input_enabled {
14540 return;
14541 }
14542
14543 let transaction = self.transact(cx, |this, cx| {
14544 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14545 let snapshot = this.buffer.read(cx).read(cx);
14546 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14547 for marked_range in &mut marked_ranges {
14548 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14549 marked_range.start.0 += relative_range_utf16.start;
14550 marked_range.start =
14551 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14552 marked_range.end =
14553 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14554 }
14555 }
14556 Some(marked_ranges)
14557 } else if let Some(range_utf16) = range_utf16 {
14558 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14559 Some(this.selection_replacement_ranges(range_utf16, cx))
14560 } else {
14561 None
14562 };
14563
14564 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14565 let newest_selection_id = this.selections.newest_anchor().id;
14566 this.selections
14567 .all::<OffsetUtf16>(cx)
14568 .iter()
14569 .zip(ranges_to_replace.iter())
14570 .find_map(|(selection, range)| {
14571 if selection.id == newest_selection_id {
14572 Some(
14573 (range.start.0 as isize - selection.head().0 as isize)
14574 ..(range.end.0 as isize - selection.head().0 as isize),
14575 )
14576 } else {
14577 None
14578 }
14579 })
14580 });
14581
14582 cx.emit(EditorEvent::InputHandled {
14583 utf16_range_to_replace: range_to_replace,
14584 text: text.into(),
14585 });
14586
14587 if let Some(ranges) = ranges_to_replace {
14588 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14589 }
14590
14591 let marked_ranges = {
14592 let snapshot = this.buffer.read(cx).read(cx);
14593 this.selections
14594 .disjoint_anchors()
14595 .iter()
14596 .map(|selection| {
14597 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14598 })
14599 .collect::<Vec<_>>()
14600 };
14601
14602 if text.is_empty() {
14603 this.unmark_text(cx);
14604 } else {
14605 this.highlight_text::<InputComposition>(
14606 marked_ranges.clone(),
14607 HighlightStyle {
14608 underline: Some(UnderlineStyle {
14609 thickness: px(1.),
14610 color: None,
14611 wavy: false,
14612 }),
14613 ..Default::default()
14614 },
14615 cx,
14616 );
14617 }
14618
14619 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14620 let use_autoclose = this.use_autoclose;
14621 let use_auto_surround = this.use_auto_surround;
14622 this.set_use_autoclose(false);
14623 this.set_use_auto_surround(false);
14624 this.handle_input(text, cx);
14625 this.set_use_autoclose(use_autoclose);
14626 this.set_use_auto_surround(use_auto_surround);
14627
14628 if let Some(new_selected_range) = new_selected_range_utf16 {
14629 let snapshot = this.buffer.read(cx).read(cx);
14630 let new_selected_ranges = marked_ranges
14631 .into_iter()
14632 .map(|marked_range| {
14633 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14634 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14635 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14636 snapshot.clip_offset_utf16(new_start, Bias::Left)
14637 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14638 })
14639 .collect::<Vec<_>>();
14640
14641 drop(snapshot);
14642 this.change_selections(None, cx, |selections| {
14643 selections.select_ranges(new_selected_ranges)
14644 });
14645 }
14646 });
14647
14648 self.ime_transaction = self.ime_transaction.or(transaction);
14649 if let Some(transaction) = self.ime_transaction {
14650 self.buffer.update(cx, |buffer, cx| {
14651 buffer.group_until_transaction(transaction, cx);
14652 });
14653 }
14654
14655 if self.text_highlights::<InputComposition>(cx).is_none() {
14656 self.ime_transaction.take();
14657 }
14658 }
14659
14660 fn bounds_for_range(
14661 &mut self,
14662 range_utf16: Range<usize>,
14663 element_bounds: gpui::Bounds<Pixels>,
14664 cx: &mut ViewContext<Self>,
14665 ) -> Option<gpui::Bounds<Pixels>> {
14666 let text_layout_details = self.text_layout_details(cx);
14667 let style = &text_layout_details.editor_style;
14668 let font_id = cx.text_system().resolve_font(&style.text.font());
14669 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14670 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14671
14672 let em_width = cx
14673 .text_system()
14674 .typographic_bounds(font_id, font_size, 'm')
14675 .unwrap()
14676 .size
14677 .width;
14678
14679 let snapshot = self.snapshot(cx);
14680 let scroll_position = snapshot.scroll_position();
14681 let scroll_left = scroll_position.x * em_width;
14682
14683 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14684 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14685 + self.gutter_dimensions.width;
14686 let y = line_height * (start.row().as_f32() - scroll_position.y);
14687
14688 Some(Bounds {
14689 origin: element_bounds.origin + point(x, y),
14690 size: size(em_width, line_height),
14691 })
14692 }
14693}
14694
14695trait SelectionExt {
14696 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14697 fn spanned_rows(
14698 &self,
14699 include_end_if_at_line_start: bool,
14700 map: &DisplaySnapshot,
14701 ) -> Range<MultiBufferRow>;
14702}
14703
14704impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14705 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14706 let start = self
14707 .start
14708 .to_point(&map.buffer_snapshot)
14709 .to_display_point(map);
14710 let end = self
14711 .end
14712 .to_point(&map.buffer_snapshot)
14713 .to_display_point(map);
14714 if self.reversed {
14715 end..start
14716 } else {
14717 start..end
14718 }
14719 }
14720
14721 fn spanned_rows(
14722 &self,
14723 include_end_if_at_line_start: bool,
14724 map: &DisplaySnapshot,
14725 ) -> Range<MultiBufferRow> {
14726 let start = self.start.to_point(&map.buffer_snapshot);
14727 let mut end = self.end.to_point(&map.buffer_snapshot);
14728 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14729 end.row -= 1;
14730 }
14731
14732 let buffer_start = map.prev_line_boundary(start).0;
14733 let buffer_end = map.next_line_boundary(end).0;
14734 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14735 }
14736}
14737
14738impl<T: InvalidationRegion> InvalidationStack<T> {
14739 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14740 where
14741 S: Clone + ToOffset,
14742 {
14743 while let Some(region) = self.last() {
14744 let all_selections_inside_invalidation_ranges =
14745 if selections.len() == region.ranges().len() {
14746 selections
14747 .iter()
14748 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14749 .all(|(selection, invalidation_range)| {
14750 let head = selection.head().to_offset(buffer);
14751 invalidation_range.start <= head && invalidation_range.end >= head
14752 })
14753 } else {
14754 false
14755 };
14756
14757 if all_selections_inside_invalidation_ranges {
14758 break;
14759 } else {
14760 self.pop();
14761 }
14762 }
14763 }
14764}
14765
14766impl<T> Default for InvalidationStack<T> {
14767 fn default() -> Self {
14768 Self(Default::default())
14769 }
14770}
14771
14772impl<T> Deref for InvalidationStack<T> {
14773 type Target = Vec<T>;
14774
14775 fn deref(&self) -> &Self::Target {
14776 &self.0
14777 }
14778}
14779
14780impl<T> DerefMut for InvalidationStack<T> {
14781 fn deref_mut(&mut self) -> &mut Self::Target {
14782 &mut self.0
14783 }
14784}
14785
14786impl InvalidationRegion for SnippetState {
14787 fn ranges(&self) -> &[Range<Anchor>] {
14788 &self.ranges[self.active_index]
14789 }
14790}
14791
14792pub fn diagnostic_block_renderer(
14793 diagnostic: Diagnostic,
14794 max_message_rows: Option<u8>,
14795 allow_closing: bool,
14796 _is_valid: bool,
14797) -> RenderBlock {
14798 let (text_without_backticks, code_ranges) =
14799 highlight_diagnostic_message(&diagnostic, max_message_rows);
14800
14801 Arc::new(move |cx: &mut BlockContext| {
14802 let group_id: SharedString = cx.block_id.to_string().into();
14803
14804 let mut text_style = cx.text_style().clone();
14805 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14806 let theme_settings = ThemeSettings::get_global(cx);
14807 text_style.font_family = theme_settings.buffer_font.family.clone();
14808 text_style.font_style = theme_settings.buffer_font.style;
14809 text_style.font_features = theme_settings.buffer_font.features.clone();
14810 text_style.font_weight = theme_settings.buffer_font.weight;
14811
14812 let multi_line_diagnostic = diagnostic.message.contains('\n');
14813
14814 let buttons = |diagnostic: &Diagnostic| {
14815 if multi_line_diagnostic {
14816 v_flex()
14817 } else {
14818 h_flex()
14819 }
14820 .when(allow_closing, |div| {
14821 div.children(diagnostic.is_primary.then(|| {
14822 IconButton::new("close-block", IconName::XCircle)
14823 .icon_color(Color::Muted)
14824 .size(ButtonSize::Compact)
14825 .style(ButtonStyle::Transparent)
14826 .visible_on_hover(group_id.clone())
14827 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14828 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14829 }))
14830 })
14831 .child(
14832 IconButton::new("copy-block", IconName::Copy)
14833 .icon_color(Color::Muted)
14834 .size(ButtonSize::Compact)
14835 .style(ButtonStyle::Transparent)
14836 .visible_on_hover(group_id.clone())
14837 .on_click({
14838 let message = diagnostic.message.clone();
14839 move |_click, cx| {
14840 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14841 }
14842 })
14843 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14844 )
14845 };
14846
14847 let icon_size = buttons(&diagnostic)
14848 .into_any_element()
14849 .layout_as_root(AvailableSpace::min_size(), cx);
14850
14851 h_flex()
14852 .id(cx.block_id)
14853 .group(group_id.clone())
14854 .relative()
14855 .size_full()
14856 .block_mouse_down()
14857 .pl(cx.gutter_dimensions.width)
14858 .w(cx.max_width - cx.gutter_dimensions.full_width())
14859 .child(
14860 div()
14861 .flex()
14862 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14863 .flex_shrink(),
14864 )
14865 .child(buttons(&diagnostic))
14866 .child(div().flex().flex_shrink_0().child(
14867 StyledText::new(text_without_backticks.clone()).with_highlights(
14868 &text_style,
14869 code_ranges.iter().map(|range| {
14870 (
14871 range.clone(),
14872 HighlightStyle {
14873 font_weight: Some(FontWeight::BOLD),
14874 ..Default::default()
14875 },
14876 )
14877 }),
14878 ),
14879 ))
14880 .into_any_element()
14881 })
14882}
14883
14884pub fn highlight_diagnostic_message(
14885 diagnostic: &Diagnostic,
14886 mut max_message_rows: Option<u8>,
14887) -> (SharedString, Vec<Range<usize>>) {
14888 let mut text_without_backticks = String::new();
14889 let mut code_ranges = Vec::new();
14890
14891 if let Some(source) = &diagnostic.source {
14892 text_without_backticks.push_str(source);
14893 code_ranges.push(0..source.len());
14894 text_without_backticks.push_str(": ");
14895 }
14896
14897 let mut prev_offset = 0;
14898 let mut in_code_block = false;
14899 let has_row_limit = max_message_rows.is_some();
14900 let mut newline_indices = diagnostic
14901 .message
14902 .match_indices('\n')
14903 .filter(|_| has_row_limit)
14904 .map(|(ix, _)| ix)
14905 .fuse()
14906 .peekable();
14907
14908 for (quote_ix, _) in diagnostic
14909 .message
14910 .match_indices('`')
14911 .chain([(diagnostic.message.len(), "")])
14912 {
14913 let mut first_newline_ix = None;
14914 let mut last_newline_ix = None;
14915 while let Some(newline_ix) = newline_indices.peek() {
14916 if *newline_ix < quote_ix {
14917 if first_newline_ix.is_none() {
14918 first_newline_ix = Some(*newline_ix);
14919 }
14920 last_newline_ix = Some(*newline_ix);
14921
14922 if let Some(rows_left) = &mut max_message_rows {
14923 if *rows_left == 0 {
14924 break;
14925 } else {
14926 *rows_left -= 1;
14927 }
14928 }
14929 let _ = newline_indices.next();
14930 } else {
14931 break;
14932 }
14933 }
14934 let prev_len = text_without_backticks.len();
14935 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14936 text_without_backticks.push_str(new_text);
14937 if in_code_block {
14938 code_ranges.push(prev_len..text_without_backticks.len());
14939 }
14940 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14941 in_code_block = !in_code_block;
14942 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14943 text_without_backticks.push_str("...");
14944 break;
14945 }
14946 }
14947
14948 (text_without_backticks.into(), code_ranges)
14949}
14950
14951fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14952 match severity {
14953 DiagnosticSeverity::ERROR => colors.error,
14954 DiagnosticSeverity::WARNING => colors.warning,
14955 DiagnosticSeverity::INFORMATION => colors.info,
14956 DiagnosticSeverity::HINT => colors.info,
14957 _ => colors.ignored,
14958 }
14959}
14960
14961pub fn styled_runs_for_code_label<'a>(
14962 label: &'a CodeLabel,
14963 syntax_theme: &'a theme::SyntaxTheme,
14964) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14965 let fade_out = HighlightStyle {
14966 fade_out: Some(0.35),
14967 ..Default::default()
14968 };
14969
14970 let mut prev_end = label.filter_range.end;
14971 label
14972 .runs
14973 .iter()
14974 .enumerate()
14975 .flat_map(move |(ix, (range, highlight_id))| {
14976 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14977 style
14978 } else {
14979 return Default::default();
14980 };
14981 let mut muted_style = style;
14982 muted_style.highlight(fade_out);
14983
14984 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14985 if range.start >= label.filter_range.end {
14986 if range.start > prev_end {
14987 runs.push((prev_end..range.start, fade_out));
14988 }
14989 runs.push((range.clone(), muted_style));
14990 } else if range.end <= label.filter_range.end {
14991 runs.push((range.clone(), style));
14992 } else {
14993 runs.push((range.start..label.filter_range.end, style));
14994 runs.push((label.filter_range.end..range.end, muted_style));
14995 }
14996 prev_end = cmp::max(prev_end, range.end);
14997
14998 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14999 runs.push((prev_end..label.text.len(), fade_out));
15000 }
15001
15002 runs
15003 })
15004}
15005
15006pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15007 let mut prev_index = 0;
15008 let mut prev_codepoint: Option<char> = None;
15009 text.char_indices()
15010 .chain([(text.len(), '\0')])
15011 .filter_map(move |(index, codepoint)| {
15012 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15013 let is_boundary = index == text.len()
15014 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15015 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15016 if is_boundary {
15017 let chunk = &text[prev_index..index];
15018 prev_index = index;
15019 Some(chunk)
15020 } else {
15021 None
15022 }
15023 })
15024}
15025
15026pub trait RangeToAnchorExt: Sized {
15027 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15028
15029 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15030 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15031 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15032 }
15033}
15034
15035impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15036 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15037 let start_offset = self.start.to_offset(snapshot);
15038 let end_offset = self.end.to_offset(snapshot);
15039 if start_offset == end_offset {
15040 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15041 } else {
15042 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15043 }
15044 }
15045}
15046
15047pub trait RowExt {
15048 fn as_f32(&self) -> f32;
15049
15050 fn next_row(&self) -> Self;
15051
15052 fn previous_row(&self) -> Self;
15053
15054 fn minus(&self, other: Self) -> u32;
15055}
15056
15057impl RowExt for DisplayRow {
15058 fn as_f32(&self) -> f32 {
15059 self.0 as f32
15060 }
15061
15062 fn next_row(&self) -> Self {
15063 Self(self.0 + 1)
15064 }
15065
15066 fn previous_row(&self) -> Self {
15067 Self(self.0.saturating_sub(1))
15068 }
15069
15070 fn minus(&self, other: Self) -> u32 {
15071 self.0 - other.0
15072 }
15073}
15074
15075impl RowExt for MultiBufferRow {
15076 fn as_f32(&self) -> f32 {
15077 self.0 as f32
15078 }
15079
15080 fn next_row(&self) -> Self {
15081 Self(self.0 + 1)
15082 }
15083
15084 fn previous_row(&self) -> Self {
15085 Self(self.0.saturating_sub(1))
15086 }
15087
15088 fn minus(&self, other: Self) -> u32 {
15089 self.0 - other.0
15090 }
15091}
15092
15093trait RowRangeExt {
15094 type Row;
15095
15096 fn len(&self) -> usize;
15097
15098 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15099}
15100
15101impl RowRangeExt for Range<MultiBufferRow> {
15102 type Row = MultiBufferRow;
15103
15104 fn len(&self) -> usize {
15105 (self.end.0 - self.start.0) as usize
15106 }
15107
15108 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15109 (self.start.0..self.end.0).map(MultiBufferRow)
15110 }
15111}
15112
15113impl RowRangeExt for Range<DisplayRow> {
15114 type Row = DisplayRow;
15115
15116 fn len(&self) -> usize {
15117 (self.end.0 - self.start.0) as usize
15118 }
15119
15120 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15121 (self.start.0..self.end.0).map(DisplayRow)
15122 }
15123}
15124
15125fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15126 if hunk.diff_base_byte_range.is_empty() {
15127 DiffHunkStatus::Added
15128 } else if hunk.row_range.is_empty() {
15129 DiffHunkStatus::Removed
15130 } else {
15131 DiffHunkStatus::Modified
15132 }
15133}
15134
15135/// If select range has more than one line, we
15136/// just point the cursor to range.start.
15137fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15138 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15139 range
15140 } else {
15141 range.start..range.start
15142 }
15143}
15144
15145pub struct KillRing(ClipboardItem);
15146impl Global for KillRing {}
15147
15148const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);