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;
31mod inline_completion_provider;
32pub mod items;
33mod linked_editing_ranges;
34mod lsp_ext;
35mod mouse_context_menu;
36pub mod movement;
37mod persistence;
38mod proposed_changes_editor;
39mod rust_analyzer_ext;
40pub mod scroll;
41mod selections_collection;
42pub mod tasks;
43
44#[cfg(test)]
45mod editor_tests;
46mod signature_help;
47#[cfg(any(test, feature = "test-support"))]
48pub mod test;
49
50use ::git::diff::DiffHunkStatus;
51pub(crate) use actions::*;
52pub use actions::{OpenExcerpts, OpenExcerptsSplit};
53use aho_corasick::AhoCorasick;
54use anyhow::{anyhow, Context as _, Result};
55use blink_manager::BlinkManager;
56use client::{Collaborator, ParticipantIndex};
57use clock::ReplicaId;
58use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
59use convert_case::{Case, Casing};
60use debounced_delay::DebouncedDelay;
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::{StringMatch, StringMatchCandidate};
73use git::blame::GitBlame;
74use gpui::{
75 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
76 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
77 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
78 FocusableView, FontId, FontWeight, HighlightStyle, Hsla, InteractiveText, KeyContext,
79 ListSizingBehavior, Model, ModelContext, MouseButton, PaintQuad, ParentElement, Pixels, Render,
80 ScrollStrategy, SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task,
81 TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle, View,
82 ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle, WeakView, WindowContext,
83};
84use highlight_matching_bracket::refresh_matching_bracket_highlights;
85use hover_popover::{hide_hover, HoverState};
86pub(crate) use hunk_diff::HoveredHunk;
87use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
88use indent_guides::ActiveIndentGuidesState;
89use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
90pub use inline_completion_provider::*;
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, ProposedChangesEditorToolbar,
103};
104use similar::{ChangeTag, TextDiff};
105use std::iter::Peekable;
106use task::{ResolvedTask, TaskTemplate, TaskVariables};
107
108use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
109pub use lsp::CompletionContext;
110use lsp::{
111 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
112 LanguageServerId, LanguageServerName,
113};
114use mouse_context_menu::MouseContextMenu;
115use movement::TextLayoutDetails;
116pub use multi_buffer::{
117 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
118 ToPoint,
119};
120use multi_buffer::{
121 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
122};
123use ordered_float::OrderedFloat;
124use parking_lot::{Mutex, RwLock};
125use project::{
126 lsp_store::{FormatTarget, FormatTrigger},
127 project_settings::{GitGutterSetting, ProjectSettings},
128 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Item, Location,
129 LocationLink, Project, ProjectTransaction, TaskSourceKind,
130};
131use rand::prelude::*;
132use rpc::{proto::*, ErrorExt};
133use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
134use selections_collection::{
135 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
136};
137use serde::{Deserialize, Serialize};
138use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
139use smallvec::SmallVec;
140use snippet::Snippet;
141use std::{
142 any::TypeId,
143 borrow::Cow,
144 cell::RefCell,
145 cmp::{self, Ordering, Reverse},
146 mem,
147 num::NonZeroU32,
148 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
149 path::{Path, PathBuf},
150 rc::Rc,
151 sync::Arc,
152 time::{Duration, Instant},
153};
154pub use sum_tree::Bias;
155use sum_tree::TreeMap;
156use text::{BufferId, OffsetUtf16, Rope};
157use theme::{
158 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
159 ThemeColors, ThemeSettings,
160};
161use ui::{
162 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
163 ListItem, Popover, PopoverMenuHandle, Tooltip,
164};
165use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
166use workspace::item::{ItemHandle, PreviewTabsSettings};
167use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
168use workspace::{
169 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
170};
171use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
172
173use crate::hover_links::find_url;
174use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
175
176pub const FILE_HEADER_HEIGHT: u32 = 2;
177pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
178pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
179pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
180const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
181const MAX_LINE_LEN: usize = 1024;
182const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
183const MAX_SELECTION_HISTORY_LEN: usize = 1024;
184pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
185#[doc(hidden)]
186pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
187#[doc(hidden)]
188pub const DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(75);
189
190pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
191pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
192
193pub fn render_parsed_markdown(
194 element_id: impl Into<ElementId>,
195 parsed: &language::ParsedMarkdown,
196 editor_style: &EditorStyle,
197 workspace: Option<WeakView<Workspace>>,
198 cx: &mut WindowContext,
199) -> InteractiveText {
200 let code_span_background_color = cx
201 .theme()
202 .colors()
203 .editor_document_highlight_read_background;
204
205 let highlights = gpui::combine_highlights(
206 parsed.highlights.iter().filter_map(|(range, highlight)| {
207 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
208 Some((range.clone(), highlight))
209 }),
210 parsed
211 .regions
212 .iter()
213 .zip(&parsed.region_ranges)
214 .filter_map(|(region, range)| {
215 if region.code {
216 Some((
217 range.clone(),
218 HighlightStyle {
219 background_color: Some(code_span_background_color),
220 ..Default::default()
221 },
222 ))
223 } else {
224 None
225 }
226 }),
227 );
228
229 let mut links = Vec::new();
230 let mut link_ranges = Vec::new();
231 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
232 if let Some(link) = region.link.clone() {
233 links.push(link);
234 link_ranges.push(range.clone());
235 }
236 }
237
238 InteractiveText::new(
239 element_id,
240 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
241 )
242 .on_click(link_ranges, move |clicked_range_ix, cx| {
243 match &links[clicked_range_ix] {
244 markdown::Link::Web { url } => cx.open_url(url),
245 markdown::Link::Path { path } => {
246 if let Some(workspace) = &workspace {
247 _ = workspace.update(cx, |workspace, cx| {
248 workspace.open_abs_path(path.clone(), false, cx).detach();
249 });
250 }
251 }
252 }
253 })
254}
255
256#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
257pub(crate) enum InlayId {
258 Suggestion(usize),
259 Hint(usize),
260}
261
262impl InlayId {
263 fn id(&self) -> usize {
264 match self {
265 Self::Suggestion(id) => *id,
266 Self::Hint(id) => *id,
267 }
268 }
269}
270
271enum DiffRowHighlight {}
272enum DocumentHighlightRead {}
273enum DocumentHighlightWrite {}
274enum InputComposition {}
275
276#[derive(Copy, Clone, PartialEq, Eq)]
277pub enum Direction {
278 Prev,
279 Next,
280}
281
282#[derive(Debug, Copy, Clone, PartialEq, Eq)]
283pub enum Navigated {
284 Yes,
285 No,
286}
287
288impl Navigated {
289 pub fn from_bool(yes: bool) -> Navigated {
290 if yes {
291 Navigated::Yes
292 } else {
293 Navigated::No
294 }
295 }
296}
297
298pub fn init_settings(cx: &mut AppContext) {
299 EditorSettings::register(cx);
300}
301
302pub fn init(cx: &mut AppContext) {
303 init_settings(cx);
304
305 workspace::register_project_item::<Editor>(cx);
306 workspace::FollowableViewRegistry::register::<Editor>(cx);
307 workspace::register_serializable_item::<Editor>(cx);
308
309 cx.observe_new_views(
310 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
311 workspace.register_action(Editor::new_file);
312 workspace.register_action(Editor::new_file_vertical);
313 workspace.register_action(Editor::new_file_horizontal);
314 },
315 )
316 .detach();
317
318 cx.on_action(move |_: &workspace::NewFile, cx| {
319 let app_state = workspace::AppState::global(cx);
320 if let Some(app_state) = app_state.upgrade() {
321 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
322 Editor::new_file(workspace, &Default::default(), cx)
323 })
324 .detach();
325 }
326 });
327 cx.on_action(move |_: &workspace::NewWindow, cx| {
328 let app_state = workspace::AppState::global(cx);
329 if let Some(app_state) = app_state.upgrade() {
330 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
331 Editor::new_file(workspace, &Default::default(), cx)
332 })
333 .detach();
334 }
335 });
336}
337
338pub struct SearchWithinRange;
339
340trait InvalidationRegion {
341 fn ranges(&self) -> &[Range<Anchor>];
342}
343
344#[derive(Clone, Debug, PartialEq)]
345pub enum SelectPhase {
346 Begin {
347 position: DisplayPoint,
348 add: bool,
349 click_count: usize,
350 },
351 BeginColumnar {
352 position: DisplayPoint,
353 reset: bool,
354 goal_column: u32,
355 },
356 Extend {
357 position: DisplayPoint,
358 click_count: usize,
359 },
360 Update {
361 position: DisplayPoint,
362 goal_column: u32,
363 scroll_delta: gpui::Point<f32>,
364 },
365 End,
366}
367
368#[derive(Clone, Debug)]
369pub enum SelectMode {
370 Character,
371 Word(Range<Anchor>),
372 Line(Range<Anchor>),
373 All,
374}
375
376#[derive(Copy, Clone, PartialEq, Eq, Debug)]
377pub enum EditorMode {
378 SingleLine { auto_width: bool },
379 AutoHeight { max_lines: usize },
380 Full,
381}
382
383#[derive(Copy, Clone, Debug)]
384pub enum SoftWrap {
385 /// Prefer not to wrap at all.
386 ///
387 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
388 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
389 GitDiff,
390 /// Prefer a single line generally, unless an overly long line is encountered.
391 None,
392 /// Soft wrap lines that exceed the editor width.
393 EditorWidth,
394 /// Soft wrap lines at the preferred line length.
395 Column(u32),
396 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
397 Bounded(u32),
398}
399
400#[derive(Clone)]
401pub struct EditorStyle {
402 pub background: Hsla,
403 pub local_player: PlayerColor,
404 pub text: TextStyle,
405 pub scrollbar_width: Pixels,
406 pub syntax: Arc<SyntaxTheme>,
407 pub status: StatusColors,
408 pub inlay_hints_style: HighlightStyle,
409 pub suggestions_style: HighlightStyle,
410 pub unnecessary_code_fade: f32,
411}
412
413impl Default for EditorStyle {
414 fn default() -> Self {
415 Self {
416 background: Hsla::default(),
417 local_player: PlayerColor::default(),
418 text: TextStyle::default(),
419 scrollbar_width: Pixels::default(),
420 syntax: Default::default(),
421 // HACK: Status colors don't have a real default.
422 // We should look into removing the status colors from the editor
423 // style and retrieve them directly from the theme.
424 status: StatusColors::dark(),
425 inlay_hints_style: HighlightStyle::default(),
426 suggestions_style: HighlightStyle::default(),
427 unnecessary_code_fade: Default::default(),
428 }
429 }
430}
431
432pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
433 let show_background = language_settings::language_settings(None, None, cx)
434 .inlay_hints
435 .show_background;
436
437 HighlightStyle {
438 color: Some(cx.theme().status().hint),
439 background_color: show_background.then(|| cx.theme().status().hint_background),
440 ..HighlightStyle::default()
441 }
442}
443
444type CompletionId = usize;
445
446#[derive(Clone, Debug)]
447struct CompletionState {
448 // render_inlay_ids represents the inlay hints that are inserted
449 // for rendering the inline completions. They may be discontinuous
450 // in the event that the completion provider returns some intersection
451 // with the existing content.
452 render_inlay_ids: Vec<InlayId>,
453 // text is the resulting rope that is inserted when the user accepts a completion.
454 text: Rope,
455 // position is the position of the cursor when the completion was triggered.
456 position: multi_buffer::Anchor,
457 // delete_range is the range of text that this completion state covers.
458 // if the completion is accepted, this range should be deleted.
459 delete_range: Option<Range<multi_buffer::Anchor>>,
460}
461
462#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
463struct EditorActionId(usize);
464
465impl EditorActionId {
466 pub fn post_inc(&mut self) -> Self {
467 let answer = self.0;
468
469 *self = Self(answer + 1);
470
471 Self(answer)
472 }
473}
474
475// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
476// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
477
478type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
479type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
480
481#[derive(Default)]
482struct ScrollbarMarkerState {
483 scrollbar_size: Size<Pixels>,
484 dirty: bool,
485 markers: Arc<[PaintQuad]>,
486 pending_refresh: Option<Task<Result<()>>>,
487}
488
489impl ScrollbarMarkerState {
490 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
491 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
492 }
493}
494
495#[derive(Clone, Debug)]
496struct RunnableTasks {
497 templates: Vec<(TaskSourceKind, TaskTemplate)>,
498 offset: MultiBufferOffset,
499 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
500 column: u32,
501 // Values of all named captures, including those starting with '_'
502 extra_variables: HashMap<String, String>,
503 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
504 context_range: Range<BufferOffset>,
505}
506
507impl RunnableTasks {
508 fn resolve<'a>(
509 &'a self,
510 cx: &'a task::TaskContext,
511 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
512 self.templates.iter().filter_map(|(kind, template)| {
513 template
514 .resolve_task(&kind.to_id_base(), cx)
515 .map(|task| (kind.clone(), task))
516 })
517 }
518}
519
520#[derive(Clone)]
521struct ResolvedTasks {
522 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
523 position: Anchor,
524}
525#[derive(Copy, Clone, Debug)]
526struct MultiBufferOffset(usize);
527#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
528struct BufferOffset(usize);
529
530// Addons allow storing per-editor state in other crates (e.g. Vim)
531pub trait Addon: 'static {
532 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
533
534 fn to_any(&self) -> &dyn std::any::Any;
535}
536
537#[derive(Debug, Copy, Clone, PartialEq, Eq)]
538pub enum IsVimMode {
539 Yes,
540 No,
541}
542
543pub trait ActiveLineTrailerProvider {
544 fn render_active_line_trailer(
545 &mut self,
546 style: &EditorStyle,
547 focus_handle: &FocusHandle,
548 cx: &mut WindowContext,
549 ) -> Option<AnyElement>;
550}
551
552/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
553///
554/// See the [module level documentation](self) for more information.
555pub struct Editor {
556 focus_handle: FocusHandle,
557 last_focused_descendant: Option<WeakFocusHandle>,
558 /// The text buffer being edited
559 buffer: Model<MultiBuffer>,
560 /// Map of how text in the buffer should be displayed.
561 /// Handles soft wraps, folds, fake inlay text insertions, etc.
562 pub display_map: Model<DisplayMap>,
563 pub selections: SelectionsCollection,
564 pub scroll_manager: ScrollManager,
565 /// When inline assist editors are linked, they all render cursors because
566 /// typing enters text into each of them, even the ones that aren't focused.
567 pub(crate) show_cursor_when_unfocused: bool,
568 columnar_selection_tail: Option<Anchor>,
569 add_selections_state: Option<AddSelectionsState>,
570 select_next_state: Option<SelectNextState>,
571 select_prev_state: Option<SelectNextState>,
572 selection_history: SelectionHistory,
573 autoclose_regions: Vec<AutocloseRegion>,
574 snippet_stack: InvalidationStack<SnippetState>,
575 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
576 ime_transaction: Option<TransactionId>,
577 active_diagnostics: Option<ActiveDiagnosticGroup>,
578 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
579
580 project: Option<Model<Project>>,
581 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
582 completion_provider: Option<Box<dyn CompletionProvider>>,
583 collaboration_hub: Option<Box<dyn CollaborationHub>>,
584 blink_manager: Model<BlinkManager>,
585 show_cursor_names: bool,
586 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
587 pub show_local_selections: bool,
588 mode: EditorMode,
589 show_breadcrumbs: bool,
590 show_gutter: bool,
591 show_line_numbers: Option<bool>,
592 use_relative_line_numbers: Option<bool>,
593 show_git_diff_gutter: Option<bool>,
594 show_code_actions: Option<bool>,
595 show_runnables: Option<bool>,
596 show_wrap_guides: Option<bool>,
597 show_indent_guides: Option<bool>,
598 placeholder_text: Option<Arc<str>>,
599 highlight_order: usize,
600 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
601 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
602 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
603 scrollbar_marker_state: ScrollbarMarkerState,
604 active_indent_guides_state: ActiveIndentGuidesState,
605 nav_history: Option<ItemNavHistory>,
606 context_menu: RwLock<Option<ContextMenu>>,
607 mouse_context_menu: Option<MouseContextMenu>,
608 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
609 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
610 signature_help_state: SignatureHelpState,
611 auto_signature_help: Option<bool>,
612 find_all_references_task_sources: Vec<Anchor>,
613 next_completion_id: CompletionId,
614 completion_documentation_pre_resolve_debounce: DebouncedDelay,
615 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
616 code_actions_task: Option<Task<Result<()>>>,
617 document_highlights_task: Option<Task<()>>,
618 linked_editing_range_task: Option<Task<Option<()>>>,
619 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
620 pending_rename: Option<RenameState>,
621 searchable: bool,
622 cursor_shape: CursorShape,
623 current_line_highlight: Option<CurrentLineHighlight>,
624 collapse_matches: bool,
625 autoindent_mode: Option<AutoindentMode>,
626 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
627 input_enabled: bool,
628 use_modal_editing: bool,
629 read_only: bool,
630 leader_peer_id: Option<PeerId>,
631 remote_id: Option<ViewId>,
632 hover_state: HoverState,
633 gutter_hovered: bool,
634 hovered_link_state: Option<HoveredLinkState>,
635 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
636 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
637 active_inline_completion: Option<CompletionState>,
638 // enable_inline_completions is a switch that Vim can use to disable
639 // inline completions based on its mode.
640 enable_inline_completions: bool,
641 show_inline_completions_override: Option<bool>,
642 inlay_hint_cache: InlayHintCache,
643 expanded_hunks: ExpandedHunks,
644 next_inlay_id: usize,
645 _subscriptions: Vec<Subscription>,
646 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
647 gutter_dimensions: GutterDimensions,
648 style: Option<EditorStyle>,
649 text_style_refinement: Option<TextStyleRefinement>,
650 next_editor_action_id: EditorActionId,
651 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
652 use_autoclose: bool,
653 use_auto_surround: bool,
654 auto_replace_emoji_shortcode: bool,
655 show_git_blame_gutter: bool,
656 show_git_blame_inline: bool,
657 show_git_blame_inline_delay_task: Option<Task<()>>,
658 git_blame_inline_enabled: bool,
659 serialize_dirty_buffers: bool,
660 show_selection_menu: Option<bool>,
661 blame: Option<Model<GitBlame>>,
662 blame_subscription: Option<Subscription>,
663 custom_context_menu: Option<
664 Box<
665 dyn 'static
666 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
667 >,
668 >,
669 last_bounds: Option<Bounds<Pixels>>,
670 expect_bounds_change: Option<Bounds<Pixels>>,
671 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
672 tasks_update_task: Option<Task<()>>,
673 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
674 breadcrumb_header: Option<String>,
675 focused_block: Option<FocusedBlock>,
676 next_scroll_position: NextScrollCursorCenterTopBottom,
677 addons: HashMap<TypeId, Box<dyn Addon>>,
678 _scroll_cursor_center_top_bottom_task: Task<()>,
679 active_line_trailer_provider: Option<Box<dyn ActiveLineTrailerProvider>>,
680}
681
682#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
683enum NextScrollCursorCenterTopBottom {
684 #[default]
685 Center,
686 Top,
687 Bottom,
688}
689
690impl NextScrollCursorCenterTopBottom {
691 fn next(&self) -> Self {
692 match self {
693 Self::Center => Self::Top,
694 Self::Top => Self::Bottom,
695 Self::Bottom => Self::Center,
696 }
697 }
698}
699
700#[derive(Clone)]
701pub struct EditorSnapshot {
702 pub mode: EditorMode,
703 show_gutter: bool,
704 show_line_numbers: Option<bool>,
705 show_git_diff_gutter: Option<bool>,
706 show_code_actions: Option<bool>,
707 show_runnables: Option<bool>,
708 git_blame_gutter_max_author_length: Option<usize>,
709 pub display_snapshot: DisplaySnapshot,
710 pub placeholder_text: Option<Arc<str>>,
711 is_focused: bool,
712 scroll_anchor: ScrollAnchor,
713 ongoing_scroll: OngoingScroll,
714 current_line_highlight: CurrentLineHighlight,
715 gutter_hovered: bool,
716}
717
718const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
719
720#[derive(Default, Debug, Clone, Copy)]
721pub struct GutterDimensions {
722 pub left_padding: Pixels,
723 pub right_padding: Pixels,
724 pub width: Pixels,
725 pub margin: Pixels,
726 pub git_blame_entries_width: Option<Pixels>,
727}
728
729impl GutterDimensions {
730 /// The full width of the space taken up by the gutter.
731 pub fn full_width(&self) -> Pixels {
732 self.margin + self.width
733 }
734
735 /// The width of the space reserved for the fold indicators,
736 /// use alongside 'justify_end' and `gutter_width` to
737 /// right align content with the line numbers
738 pub fn fold_area_width(&self) -> Pixels {
739 self.margin + self.right_padding
740 }
741}
742
743#[derive(Debug)]
744pub struct RemoteSelection {
745 pub replica_id: ReplicaId,
746 pub selection: Selection<Anchor>,
747 pub cursor_shape: CursorShape,
748 pub peer_id: PeerId,
749 pub line_mode: bool,
750 pub participant_index: Option<ParticipantIndex>,
751 pub user_name: Option<SharedString>,
752}
753
754#[derive(Clone, Debug)]
755struct SelectionHistoryEntry {
756 selections: Arc<[Selection<Anchor>]>,
757 select_next_state: Option<SelectNextState>,
758 select_prev_state: Option<SelectNextState>,
759 add_selections_state: Option<AddSelectionsState>,
760}
761
762enum SelectionHistoryMode {
763 Normal,
764 Undoing,
765 Redoing,
766}
767
768#[derive(Clone, PartialEq, Eq, Hash)]
769struct HoveredCursor {
770 replica_id: u16,
771 selection_id: usize,
772}
773
774impl Default for SelectionHistoryMode {
775 fn default() -> Self {
776 Self::Normal
777 }
778}
779
780#[derive(Default)]
781struct SelectionHistory {
782 #[allow(clippy::type_complexity)]
783 selections_by_transaction:
784 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
785 mode: SelectionHistoryMode,
786 undo_stack: VecDeque<SelectionHistoryEntry>,
787 redo_stack: VecDeque<SelectionHistoryEntry>,
788}
789
790impl SelectionHistory {
791 fn insert_transaction(
792 &mut self,
793 transaction_id: TransactionId,
794 selections: Arc<[Selection<Anchor>]>,
795 ) {
796 self.selections_by_transaction
797 .insert(transaction_id, (selections, None));
798 }
799
800 #[allow(clippy::type_complexity)]
801 fn transaction(
802 &self,
803 transaction_id: TransactionId,
804 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
805 self.selections_by_transaction.get(&transaction_id)
806 }
807
808 #[allow(clippy::type_complexity)]
809 fn transaction_mut(
810 &mut self,
811 transaction_id: TransactionId,
812 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
813 self.selections_by_transaction.get_mut(&transaction_id)
814 }
815
816 fn push(&mut self, entry: SelectionHistoryEntry) {
817 if !entry.selections.is_empty() {
818 match self.mode {
819 SelectionHistoryMode::Normal => {
820 self.push_undo(entry);
821 self.redo_stack.clear();
822 }
823 SelectionHistoryMode::Undoing => self.push_redo(entry),
824 SelectionHistoryMode::Redoing => self.push_undo(entry),
825 }
826 }
827 }
828
829 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
830 if self
831 .undo_stack
832 .back()
833 .map_or(true, |e| e.selections != entry.selections)
834 {
835 self.undo_stack.push_back(entry);
836 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
837 self.undo_stack.pop_front();
838 }
839 }
840 }
841
842 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
843 if self
844 .redo_stack
845 .back()
846 .map_or(true, |e| e.selections != entry.selections)
847 {
848 self.redo_stack.push_back(entry);
849 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
850 self.redo_stack.pop_front();
851 }
852 }
853 }
854}
855
856struct RowHighlight {
857 index: usize,
858 range: Range<Anchor>,
859 color: Hsla,
860 should_autoscroll: bool,
861}
862
863#[derive(Clone, Debug)]
864struct AddSelectionsState {
865 above: bool,
866 stack: Vec<usize>,
867}
868
869#[derive(Clone)]
870struct SelectNextState {
871 query: AhoCorasick,
872 wordwise: bool,
873 done: bool,
874}
875
876impl std::fmt::Debug for SelectNextState {
877 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
878 f.debug_struct(std::any::type_name::<Self>())
879 .field("wordwise", &self.wordwise)
880 .field("done", &self.done)
881 .finish()
882 }
883}
884
885#[derive(Debug)]
886struct AutocloseRegion {
887 selection_id: usize,
888 range: Range<Anchor>,
889 pair: BracketPair,
890}
891
892#[derive(Debug)]
893struct SnippetState {
894 ranges: Vec<Vec<Range<Anchor>>>,
895 active_index: usize,
896 choices: Vec<Option<Vec<String>>>,
897}
898
899#[doc(hidden)]
900pub struct RenameState {
901 pub range: Range<Anchor>,
902 pub old_name: Arc<str>,
903 pub editor: View<Editor>,
904 block_id: CustomBlockId,
905}
906
907struct InvalidationStack<T>(Vec<T>);
908
909struct RegisteredInlineCompletionProvider {
910 provider: Arc<dyn InlineCompletionProviderHandle>,
911 _subscription: Subscription,
912}
913
914enum ContextMenu {
915 Completions(CompletionsMenu),
916 CodeActions(CodeActionsMenu),
917}
918
919impl ContextMenu {
920 fn select_first(
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_first(provider, cx),
928 ContextMenu::CodeActions(menu) => menu.select_first(cx),
929 }
930 true
931 } else {
932 false
933 }
934 }
935
936 fn select_prev(
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_prev(provider, cx),
944 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
945 }
946 true
947 } else {
948 false
949 }
950 }
951
952 fn select_next(
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_next(provider, cx),
960 ContextMenu::CodeActions(menu) => menu.select_next(cx),
961 }
962 true
963 } else {
964 false
965 }
966 }
967
968 fn select_last(
969 &mut self,
970 provider: Option<&dyn CompletionProvider>,
971 cx: &mut ViewContext<Editor>,
972 ) -> bool {
973 if self.visible() {
974 match self {
975 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
976 ContextMenu::CodeActions(menu) => menu.select_last(cx),
977 }
978 true
979 } else {
980 false
981 }
982 }
983
984 fn visible(&self) -> bool {
985 match self {
986 ContextMenu::Completions(menu) => menu.visible(),
987 ContextMenu::CodeActions(menu) => menu.visible(),
988 }
989 }
990
991 fn render(
992 &self,
993 cursor_position: DisplayPoint,
994 style: &EditorStyle,
995 max_height: Pixels,
996 workspace: Option<WeakView<Workspace>>,
997 cx: &mut ViewContext<Editor>,
998 ) -> (ContextMenuOrigin, AnyElement) {
999 match self {
1000 ContextMenu::Completions(menu) => (
1001 ContextMenuOrigin::EditorPoint(cursor_position),
1002 menu.render(style, max_height, workspace, cx),
1003 ),
1004 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
1005 }
1006 }
1007}
1008
1009enum ContextMenuOrigin {
1010 EditorPoint(DisplayPoint),
1011 GutterIndicator(DisplayRow),
1012}
1013
1014#[derive(Clone, Debug)]
1015struct CompletionsMenu {
1016 id: CompletionId,
1017 sort_completions: bool,
1018 initial_position: Anchor,
1019 buffer: Model<Buffer>,
1020 completions: Arc<RwLock<Box<[Completion]>>>,
1021 match_candidates: Arc<[StringMatchCandidate]>,
1022 matches: Arc<[StringMatch]>,
1023 selected_item: usize,
1024 scroll_handle: UniformListScrollHandle,
1025 selected_completion_documentation_resolve_debounce: Option<Arc<Mutex<DebouncedDelay>>>,
1026}
1027
1028impl CompletionsMenu {
1029 fn new(
1030 id: CompletionId,
1031 sort_completions: bool,
1032 initial_position: Anchor,
1033 buffer: Model<Buffer>,
1034 completions: Box<[Completion]>,
1035 ) -> Self {
1036 let match_candidates = completions
1037 .iter()
1038 .enumerate()
1039 .map(|(id, completion)| StringMatchCandidate::new(id, completion.label.text.clone()))
1040 .collect();
1041
1042 Self {
1043 id,
1044 sort_completions,
1045 initial_position,
1046 buffer,
1047 completions: Arc::new(RwLock::new(completions)),
1048 match_candidates,
1049 matches: Vec::new().into(),
1050 selected_item: 0,
1051 scroll_handle: UniformListScrollHandle::new(),
1052 selected_completion_documentation_resolve_debounce: Some(Arc::new(Mutex::new(
1053 DebouncedDelay::new(),
1054 ))),
1055 }
1056 }
1057
1058 fn new_snippet_choices(
1059 id: CompletionId,
1060 sort_completions: bool,
1061 choices: &Vec<String>,
1062 selection: Range<Anchor>,
1063 buffer: Model<Buffer>,
1064 ) -> Self {
1065 let completions = choices
1066 .iter()
1067 .map(|choice| Completion {
1068 old_range: selection.start.text_anchor..selection.end.text_anchor,
1069 new_text: choice.to_string(),
1070 label: CodeLabel {
1071 text: choice.to_string(),
1072 runs: Default::default(),
1073 filter_range: Default::default(),
1074 },
1075 server_id: LanguageServerId(usize::MAX),
1076 documentation: None,
1077 lsp_completion: Default::default(),
1078 confirm: None,
1079 })
1080 .collect();
1081
1082 let match_candidates = choices
1083 .iter()
1084 .enumerate()
1085 .map(|(id, completion)| StringMatchCandidate::new(id, completion.to_string()))
1086 .collect();
1087 let matches = choices
1088 .iter()
1089 .enumerate()
1090 .map(|(id, completion)| StringMatch {
1091 candidate_id: id,
1092 score: 1.,
1093 positions: vec![],
1094 string: completion.clone(),
1095 })
1096 .collect();
1097 Self {
1098 id,
1099 sort_completions,
1100 initial_position: selection.start,
1101 buffer,
1102 completions: Arc::new(RwLock::new(completions)),
1103 match_candidates,
1104 matches,
1105 selected_item: 0,
1106 scroll_handle: UniformListScrollHandle::new(),
1107 selected_completion_documentation_resolve_debounce: Some(Arc::new(Mutex::new(
1108 DebouncedDelay::new(),
1109 ))),
1110 }
1111 }
1112
1113 fn suppress_documentation_resolution(mut self) -> Self {
1114 self.selected_completion_documentation_resolve_debounce
1115 .take();
1116 self
1117 }
1118
1119 fn select_first(
1120 &mut self,
1121 provider: Option<&dyn CompletionProvider>,
1122 cx: &mut ViewContext<Editor>,
1123 ) {
1124 self.selected_item = 0;
1125 self.scroll_handle
1126 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1127 self.attempt_resolve_selected_completion_documentation(provider, cx);
1128 cx.notify();
1129 }
1130
1131 fn select_prev(
1132 &mut self,
1133 provider: Option<&dyn CompletionProvider>,
1134 cx: &mut ViewContext<Editor>,
1135 ) {
1136 if self.selected_item > 0 {
1137 self.selected_item -= 1;
1138 } else {
1139 self.selected_item = self.matches.len() - 1;
1140 }
1141 self.scroll_handle
1142 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1143 self.attempt_resolve_selected_completion_documentation(provider, cx);
1144 cx.notify();
1145 }
1146
1147 fn select_next(
1148 &mut self,
1149 provider: Option<&dyn CompletionProvider>,
1150 cx: &mut ViewContext<Editor>,
1151 ) {
1152 if self.selected_item + 1 < self.matches.len() {
1153 self.selected_item += 1;
1154 } else {
1155 self.selected_item = 0;
1156 }
1157 self.scroll_handle
1158 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1159 self.attempt_resolve_selected_completion_documentation(provider, cx);
1160 cx.notify();
1161 }
1162
1163 fn select_last(
1164 &mut self,
1165 provider: Option<&dyn CompletionProvider>,
1166 cx: &mut ViewContext<Editor>,
1167 ) {
1168 self.selected_item = self.matches.len() - 1;
1169 self.scroll_handle
1170 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1171 self.attempt_resolve_selected_completion_documentation(provider, cx);
1172 cx.notify();
1173 }
1174
1175 fn pre_resolve_completion_documentation(
1176 buffer: Model<Buffer>,
1177 completions: Arc<RwLock<Box<[Completion]>>>,
1178 matches: Arc<[StringMatch]>,
1179 editor: &Editor,
1180 cx: &mut ViewContext<Editor>,
1181 ) -> Task<()> {
1182 let settings = EditorSettings::get_global(cx);
1183 if !settings.show_completion_documentation {
1184 return Task::ready(());
1185 }
1186
1187 let Some(provider) = editor.completion_provider.as_ref() else {
1188 return Task::ready(());
1189 };
1190
1191 let resolve_task = provider.resolve_completions(
1192 buffer,
1193 matches.iter().map(|m| m.candidate_id).collect(),
1194 completions.clone(),
1195 cx,
1196 );
1197
1198 cx.spawn(move |this, mut cx| async move {
1199 if let Some(true) = resolve_task.await.log_err() {
1200 this.update(&mut cx, |_, cx| cx.notify()).ok();
1201 }
1202 })
1203 }
1204
1205 fn attempt_resolve_selected_completion_documentation(
1206 &mut self,
1207 provider: Option<&dyn CompletionProvider>,
1208 cx: &mut ViewContext<Editor>,
1209 ) {
1210 let settings = EditorSettings::get_global(cx);
1211 if !settings.show_completion_documentation {
1212 return;
1213 }
1214
1215 let completion_index = self.matches[self.selected_item].candidate_id;
1216 let Some(provider) = provider else {
1217 return;
1218 };
1219 let Some(documentation_resolve) = self
1220 .selected_completion_documentation_resolve_debounce
1221 .as_ref()
1222 else {
1223 return;
1224 };
1225
1226 let resolve_task = provider.resolve_completions(
1227 self.buffer.clone(),
1228 vec![completion_index],
1229 self.completions.clone(),
1230 cx,
1231 );
1232
1233 let delay_ms =
1234 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1235 let delay = Duration::from_millis(delay_ms);
1236
1237 documentation_resolve.lock().fire_new(delay, cx, |_, cx| {
1238 cx.spawn(move |this, mut cx| async move {
1239 if let Some(true) = resolve_task.await.log_err() {
1240 this.update(&mut cx, |_, cx| cx.notify()).ok();
1241 }
1242 })
1243 });
1244 }
1245
1246 fn visible(&self) -> bool {
1247 !self.matches.is_empty()
1248 }
1249
1250 fn render(
1251 &self,
1252 style: &EditorStyle,
1253 max_height: Pixels,
1254 workspace: Option<WeakView<Workspace>>,
1255 cx: &mut ViewContext<Editor>,
1256 ) -> AnyElement {
1257 let settings = EditorSettings::get_global(cx);
1258 let show_completion_documentation = settings.show_completion_documentation;
1259
1260 let widest_completion_ix = self
1261 .matches
1262 .iter()
1263 .enumerate()
1264 .max_by_key(|(_, mat)| {
1265 let completions = self.completions.read();
1266 let completion = &completions[mat.candidate_id];
1267 let documentation = &completion.documentation;
1268
1269 let mut len = completion.label.text.chars().count();
1270 if let Some(Documentation::SingleLine(text)) = documentation {
1271 if show_completion_documentation {
1272 len += text.chars().count();
1273 }
1274 }
1275
1276 len
1277 })
1278 .map(|(ix, _)| ix);
1279
1280 let completions = self.completions.clone();
1281 let matches = self.matches.clone();
1282 let selected_item = self.selected_item;
1283 let style = style.clone();
1284
1285 let multiline_docs = if show_completion_documentation {
1286 let mat = &self.matches[selected_item];
1287 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1288 Some(Documentation::MultiLinePlainText(text)) => {
1289 Some(div().child(SharedString::from(text.clone())))
1290 }
1291 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1292 Some(div().child(render_parsed_markdown(
1293 "completions_markdown",
1294 parsed,
1295 &style,
1296 workspace,
1297 cx,
1298 )))
1299 }
1300 _ => None,
1301 };
1302 multiline_docs.map(|div| {
1303 div.id("multiline_docs")
1304 .max_h(max_height)
1305 .flex_1()
1306 .px_1p5()
1307 .py_1()
1308 .min_w(px(260.))
1309 .max_w(px(640.))
1310 .w(px(500.))
1311 .overflow_y_scroll()
1312 .occlude()
1313 })
1314 } else {
1315 None
1316 };
1317
1318 let list = uniform_list(
1319 cx.view().clone(),
1320 "completions",
1321 matches.len(),
1322 move |_editor, range, cx| {
1323 let start_ix = range.start;
1324 let completions_guard = completions.read();
1325
1326 matches[range]
1327 .iter()
1328 .enumerate()
1329 .map(|(ix, mat)| {
1330 let item_ix = start_ix + ix;
1331 let candidate_id = mat.candidate_id;
1332 let completion = &completions_guard[candidate_id];
1333
1334 let documentation = if show_completion_documentation {
1335 &completion.documentation
1336 } else {
1337 &None
1338 };
1339
1340 let highlights = gpui::combine_highlights(
1341 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1342 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1343 |(range, mut highlight)| {
1344 // Ignore font weight for syntax highlighting, as we'll use it
1345 // for fuzzy matches.
1346 highlight.font_weight = None;
1347
1348 if completion.lsp_completion.deprecated.unwrap_or(false) {
1349 highlight.strikethrough = Some(StrikethroughStyle {
1350 thickness: 1.0.into(),
1351 ..Default::default()
1352 });
1353 highlight.color = Some(cx.theme().colors().text_muted);
1354 }
1355
1356 (range, highlight)
1357 },
1358 ),
1359 );
1360 let completion_label = StyledText::new(completion.label.text.clone())
1361 .with_highlights(&style.text, highlights);
1362 let documentation_label =
1363 if let Some(Documentation::SingleLine(text)) = documentation {
1364 if text.trim().is_empty() {
1365 None
1366 } else {
1367 Some(
1368 Label::new(text.clone())
1369 .ml_4()
1370 .size(LabelSize::Small)
1371 .color(Color::Muted),
1372 )
1373 }
1374 } else {
1375 None
1376 };
1377
1378 let color_swatch = completion
1379 .color()
1380 .map(|color| div().size_4().bg(color).rounded_sm());
1381
1382 div().min_w(px(220.)).max_w(px(540.)).child(
1383 ListItem::new(mat.candidate_id)
1384 .inset(true)
1385 .selected(item_ix == selected_item)
1386 .on_click(cx.listener(move |editor, _event, cx| {
1387 cx.stop_propagation();
1388 if let Some(task) = editor.confirm_completion(
1389 &ConfirmCompletion {
1390 item_ix: Some(item_ix),
1391 },
1392 cx,
1393 ) {
1394 task.detach_and_log_err(cx)
1395 }
1396 }))
1397 .start_slot::<Div>(color_swatch)
1398 .child(h_flex().overflow_hidden().child(completion_label))
1399 .end_slot::<Label>(documentation_label),
1400 )
1401 })
1402 .collect()
1403 },
1404 )
1405 .occlude()
1406 .max_h(max_height)
1407 .track_scroll(self.scroll_handle.clone())
1408 .with_width_from_item(widest_completion_ix)
1409 .with_sizing_behavior(ListSizingBehavior::Infer);
1410
1411 Popover::new()
1412 .child(list)
1413 .when_some(multiline_docs, |popover, multiline_docs| {
1414 popover.aside(multiline_docs)
1415 })
1416 .into_any_element()
1417 }
1418
1419 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1420 let mut matches = if let Some(query) = query {
1421 fuzzy::match_strings(
1422 &self.match_candidates,
1423 query,
1424 query.chars().any(|c| c.is_uppercase()),
1425 100,
1426 &Default::default(),
1427 executor,
1428 )
1429 .await
1430 } else {
1431 self.match_candidates
1432 .iter()
1433 .enumerate()
1434 .map(|(candidate_id, candidate)| StringMatch {
1435 candidate_id,
1436 score: Default::default(),
1437 positions: Default::default(),
1438 string: candidate.string.clone(),
1439 })
1440 .collect()
1441 };
1442
1443 // Remove all candidates where the query's start does not match the start of any word in the candidate
1444 if let Some(query) = query {
1445 if let Some(query_start) = query.chars().next() {
1446 matches.retain(|string_match| {
1447 split_words(&string_match.string).any(|word| {
1448 // Check that the first codepoint of the word as lowercase matches the first
1449 // codepoint of the query as lowercase
1450 word.chars()
1451 .flat_map(|codepoint| codepoint.to_lowercase())
1452 .zip(query_start.to_lowercase())
1453 .all(|(word_cp, query_cp)| word_cp == query_cp)
1454 })
1455 });
1456 }
1457 }
1458
1459 let completions = self.completions.read();
1460 if self.sort_completions {
1461 matches.sort_unstable_by_key(|mat| {
1462 // We do want to strike a balance here between what the language server tells us
1463 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1464 // `Creat` and there is a local variable called `CreateComponent`).
1465 // So what we do is: we bucket all matches into two buckets
1466 // - Strong matches
1467 // - Weak matches
1468 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1469 // and the Weak matches are the rest.
1470 //
1471 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1472 // matches, we prefer language-server sort_text first.
1473 //
1474 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1475 // Rest of the matches(weak) can be sorted as language-server expects.
1476
1477 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1478 enum MatchScore<'a> {
1479 Strong {
1480 score: Reverse<OrderedFloat<f64>>,
1481 sort_text: Option<&'a str>,
1482 sort_key: (usize, &'a str),
1483 },
1484 Weak {
1485 sort_text: Option<&'a str>,
1486 score: Reverse<OrderedFloat<f64>>,
1487 sort_key: (usize, &'a str),
1488 },
1489 }
1490
1491 let completion = &completions[mat.candidate_id];
1492 let sort_key = completion.sort_key();
1493 let sort_text = completion.lsp_completion.sort_text.as_deref();
1494 let score = Reverse(OrderedFloat(mat.score));
1495
1496 if mat.score >= 0.2 {
1497 MatchScore::Strong {
1498 score,
1499 sort_text,
1500 sort_key,
1501 }
1502 } else {
1503 MatchScore::Weak {
1504 sort_text,
1505 score,
1506 sort_key,
1507 }
1508 }
1509 });
1510 }
1511
1512 for mat in &mut matches {
1513 let completion = &completions[mat.candidate_id];
1514 mat.string.clone_from(&completion.label.text);
1515 for position in &mut mat.positions {
1516 *position += completion.label.filter_range.start;
1517 }
1518 }
1519 drop(completions);
1520
1521 self.matches = matches.into();
1522 self.selected_item = 0;
1523 }
1524}
1525
1526#[derive(Clone)]
1527struct AvailableCodeAction {
1528 excerpt_id: ExcerptId,
1529 action: CodeAction,
1530 provider: Arc<dyn CodeActionProvider>,
1531}
1532
1533#[derive(Clone)]
1534struct CodeActionContents {
1535 tasks: Option<Arc<ResolvedTasks>>,
1536 actions: Option<Arc<[AvailableCodeAction]>>,
1537}
1538
1539impl CodeActionContents {
1540 fn len(&self) -> usize {
1541 match (&self.tasks, &self.actions) {
1542 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1543 (Some(tasks), None) => tasks.templates.len(),
1544 (None, Some(actions)) => actions.len(),
1545 (None, None) => 0,
1546 }
1547 }
1548
1549 fn is_empty(&self) -> bool {
1550 match (&self.tasks, &self.actions) {
1551 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1552 (Some(tasks), None) => tasks.templates.is_empty(),
1553 (None, Some(actions)) => actions.is_empty(),
1554 (None, None) => true,
1555 }
1556 }
1557
1558 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1559 self.tasks
1560 .iter()
1561 .flat_map(|tasks| {
1562 tasks
1563 .templates
1564 .iter()
1565 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1566 })
1567 .chain(self.actions.iter().flat_map(|actions| {
1568 actions.iter().map(|available| CodeActionsItem::CodeAction {
1569 excerpt_id: available.excerpt_id,
1570 action: available.action.clone(),
1571 provider: available.provider.clone(),
1572 })
1573 }))
1574 }
1575 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1576 match (&self.tasks, &self.actions) {
1577 (Some(tasks), Some(actions)) => {
1578 if index < tasks.templates.len() {
1579 tasks
1580 .templates
1581 .get(index)
1582 .cloned()
1583 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1584 } else {
1585 actions.get(index - tasks.templates.len()).map(|available| {
1586 CodeActionsItem::CodeAction {
1587 excerpt_id: available.excerpt_id,
1588 action: available.action.clone(),
1589 provider: available.provider.clone(),
1590 }
1591 })
1592 }
1593 }
1594 (Some(tasks), None) => tasks
1595 .templates
1596 .get(index)
1597 .cloned()
1598 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1599 (None, Some(actions)) => {
1600 actions
1601 .get(index)
1602 .map(|available| CodeActionsItem::CodeAction {
1603 excerpt_id: available.excerpt_id,
1604 action: available.action.clone(),
1605 provider: available.provider.clone(),
1606 })
1607 }
1608 (None, None) => None,
1609 }
1610 }
1611}
1612
1613#[allow(clippy::large_enum_variant)]
1614#[derive(Clone)]
1615enum CodeActionsItem {
1616 Task(TaskSourceKind, ResolvedTask),
1617 CodeAction {
1618 excerpt_id: ExcerptId,
1619 action: CodeAction,
1620 provider: Arc<dyn CodeActionProvider>,
1621 },
1622}
1623
1624impl CodeActionsItem {
1625 fn as_task(&self) -> Option<&ResolvedTask> {
1626 let Self::Task(_, task) = self else {
1627 return None;
1628 };
1629 Some(task)
1630 }
1631 fn as_code_action(&self) -> Option<&CodeAction> {
1632 let Self::CodeAction { action, .. } = self else {
1633 return None;
1634 };
1635 Some(action)
1636 }
1637 fn label(&self) -> String {
1638 match self {
1639 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1640 Self::Task(_, task) => task.resolved_label.clone(),
1641 }
1642 }
1643}
1644
1645struct CodeActionsMenu {
1646 actions: CodeActionContents,
1647 buffer: Model<Buffer>,
1648 selected_item: usize,
1649 scroll_handle: UniformListScrollHandle,
1650 deployed_from_indicator: Option<DisplayRow>,
1651}
1652
1653impl CodeActionsMenu {
1654 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1655 self.selected_item = 0;
1656 self.scroll_handle
1657 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1658 cx.notify()
1659 }
1660
1661 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1662 if self.selected_item > 0 {
1663 self.selected_item -= 1;
1664 } else {
1665 self.selected_item = self.actions.len() - 1;
1666 }
1667 self.scroll_handle
1668 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1669 cx.notify();
1670 }
1671
1672 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1673 if self.selected_item + 1 < self.actions.len() {
1674 self.selected_item += 1;
1675 } else {
1676 self.selected_item = 0;
1677 }
1678 self.scroll_handle
1679 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1680 cx.notify();
1681 }
1682
1683 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1684 self.selected_item = self.actions.len() - 1;
1685 self.scroll_handle
1686 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1687 cx.notify()
1688 }
1689
1690 fn visible(&self) -> bool {
1691 !self.actions.is_empty()
1692 }
1693
1694 fn render(
1695 &self,
1696 cursor_position: DisplayPoint,
1697 _style: &EditorStyle,
1698 max_height: Pixels,
1699 cx: &mut ViewContext<Editor>,
1700 ) -> (ContextMenuOrigin, AnyElement) {
1701 let actions = self.actions.clone();
1702 let selected_item = self.selected_item;
1703 let element = uniform_list(
1704 cx.view().clone(),
1705 "code_actions_menu",
1706 self.actions.len(),
1707 move |_this, range, cx| {
1708 actions
1709 .iter()
1710 .skip(range.start)
1711 .take(range.end - range.start)
1712 .enumerate()
1713 .map(|(ix, action)| {
1714 let item_ix = range.start + ix;
1715 let selected = selected_item == item_ix;
1716 let colors = cx.theme().colors();
1717 div()
1718 .px_1()
1719 .rounded_md()
1720 .text_color(colors.text)
1721 .when(selected, |style| {
1722 style
1723 .bg(colors.element_active)
1724 .text_color(colors.text_accent)
1725 })
1726 .hover(|style| {
1727 style
1728 .bg(colors.element_hover)
1729 .text_color(colors.text_accent)
1730 })
1731 .whitespace_nowrap()
1732 .when_some(action.as_code_action(), |this, action| {
1733 this.on_mouse_down(
1734 MouseButton::Left,
1735 cx.listener(move |editor, _, cx| {
1736 cx.stop_propagation();
1737 if let Some(task) = editor.confirm_code_action(
1738 &ConfirmCodeAction {
1739 item_ix: Some(item_ix),
1740 },
1741 cx,
1742 ) {
1743 task.detach_and_log_err(cx)
1744 }
1745 }),
1746 )
1747 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1748 .child(SharedString::from(action.lsp_action.title.clone()))
1749 })
1750 .when_some(action.as_task(), |this, task| {
1751 this.on_mouse_down(
1752 MouseButton::Left,
1753 cx.listener(move |editor, _, cx| {
1754 cx.stop_propagation();
1755 if let Some(task) = editor.confirm_code_action(
1756 &ConfirmCodeAction {
1757 item_ix: Some(item_ix),
1758 },
1759 cx,
1760 ) {
1761 task.detach_and_log_err(cx)
1762 }
1763 }),
1764 )
1765 .child(SharedString::from(task.resolved_label.clone()))
1766 })
1767 })
1768 .collect()
1769 },
1770 )
1771 .elevation_1(cx)
1772 .p_1()
1773 .max_h(max_height)
1774 .occlude()
1775 .track_scroll(self.scroll_handle.clone())
1776 .with_width_from_item(
1777 self.actions
1778 .iter()
1779 .enumerate()
1780 .max_by_key(|(_, action)| match action {
1781 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1782 CodeActionsItem::CodeAction { action, .. } => {
1783 action.lsp_action.title.chars().count()
1784 }
1785 })
1786 .map(|(ix, _)| ix),
1787 )
1788 .with_sizing_behavior(ListSizingBehavior::Infer)
1789 .into_any_element();
1790
1791 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1792 ContextMenuOrigin::GutterIndicator(row)
1793 } else {
1794 ContextMenuOrigin::EditorPoint(cursor_position)
1795 };
1796
1797 (cursor_position, element)
1798 }
1799}
1800
1801#[derive(Debug)]
1802struct ActiveDiagnosticGroup {
1803 primary_range: Range<Anchor>,
1804 primary_message: String,
1805 group_id: usize,
1806 blocks: HashMap<CustomBlockId, Diagnostic>,
1807 is_valid: bool,
1808}
1809
1810#[derive(Serialize, Deserialize, Clone, Debug)]
1811pub struct ClipboardSelection {
1812 pub len: usize,
1813 pub is_entire_line: bool,
1814 pub first_line_indent: u32,
1815}
1816
1817#[derive(Debug)]
1818pub(crate) struct NavigationData {
1819 cursor_anchor: Anchor,
1820 cursor_position: Point,
1821 scroll_anchor: ScrollAnchor,
1822 scroll_top_row: u32,
1823}
1824
1825#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1826pub enum GotoDefinitionKind {
1827 Symbol,
1828 Declaration,
1829 Type,
1830 Implementation,
1831}
1832
1833#[derive(Debug, Clone)]
1834enum InlayHintRefreshReason {
1835 Toggle(bool),
1836 SettingsChange(InlayHintSettings),
1837 NewLinesShown,
1838 BufferEdited(HashSet<Arc<Language>>),
1839 RefreshRequested,
1840 ExcerptsRemoved(Vec<ExcerptId>),
1841}
1842
1843impl InlayHintRefreshReason {
1844 fn description(&self) -> &'static str {
1845 match self {
1846 Self::Toggle(_) => "toggle",
1847 Self::SettingsChange(_) => "settings change",
1848 Self::NewLinesShown => "new lines shown",
1849 Self::BufferEdited(_) => "buffer edited",
1850 Self::RefreshRequested => "refresh requested",
1851 Self::ExcerptsRemoved(_) => "excerpts removed",
1852 }
1853 }
1854}
1855
1856pub(crate) struct FocusedBlock {
1857 id: BlockId,
1858 focus_handle: WeakFocusHandle,
1859}
1860
1861#[derive(Clone)]
1862struct JumpData {
1863 excerpt_id: ExcerptId,
1864 position: Point,
1865 anchor: text::Anchor,
1866 path: Option<project::ProjectPath>,
1867 line_offset_from_top: u32,
1868}
1869
1870impl Editor {
1871 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1872 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1873 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1874 Self::new(
1875 EditorMode::SingleLine { auto_width: false },
1876 buffer,
1877 None,
1878 false,
1879 cx,
1880 )
1881 }
1882
1883 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1884 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1885 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1886 Self::new(EditorMode::Full, buffer, None, false, cx)
1887 }
1888
1889 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1890 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1891 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1892 Self::new(
1893 EditorMode::SingleLine { auto_width: true },
1894 buffer,
1895 None,
1896 false,
1897 cx,
1898 )
1899 }
1900
1901 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1902 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1903 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1904 Self::new(
1905 EditorMode::AutoHeight { max_lines },
1906 buffer,
1907 None,
1908 false,
1909 cx,
1910 )
1911 }
1912
1913 pub fn for_buffer(
1914 buffer: Model<Buffer>,
1915 project: Option<Model<Project>>,
1916 cx: &mut ViewContext<Self>,
1917 ) -> Self {
1918 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1919 Self::new(EditorMode::Full, buffer, project, false, cx)
1920 }
1921
1922 pub fn for_multibuffer(
1923 buffer: Model<MultiBuffer>,
1924 project: Option<Model<Project>>,
1925 show_excerpt_controls: bool,
1926 cx: &mut ViewContext<Self>,
1927 ) -> Self {
1928 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1929 }
1930
1931 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1932 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1933 let mut clone = Self::new(
1934 self.mode,
1935 self.buffer.clone(),
1936 self.project.clone(),
1937 show_excerpt_controls,
1938 cx,
1939 );
1940 self.display_map.update(cx, |display_map, cx| {
1941 let snapshot = display_map.snapshot(cx);
1942 clone.display_map.update(cx, |display_map, cx| {
1943 display_map.set_state(&snapshot, cx);
1944 });
1945 });
1946 clone.selections.clone_state(&self.selections);
1947 clone.scroll_manager.clone_state(&self.scroll_manager);
1948 clone.searchable = self.searchable;
1949 clone
1950 }
1951
1952 pub fn new(
1953 mode: EditorMode,
1954 buffer: Model<MultiBuffer>,
1955 project: Option<Model<Project>>,
1956 show_excerpt_controls: bool,
1957 cx: &mut ViewContext<Self>,
1958 ) -> Self {
1959 let style = cx.text_style();
1960 let font_size = style.font_size.to_pixels(cx.rem_size());
1961 let editor = cx.view().downgrade();
1962 let fold_placeholder = FoldPlaceholder {
1963 constrain_width: true,
1964 render: Arc::new(move |fold_id, fold_range, cx| {
1965 let editor = editor.clone();
1966 div()
1967 .id(fold_id)
1968 .bg(cx.theme().colors().ghost_element_background)
1969 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1970 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1971 .rounded_sm()
1972 .size_full()
1973 .cursor_pointer()
1974 .child("⋯")
1975 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1976 .on_click(move |_, cx| {
1977 editor
1978 .update(cx, |editor, cx| {
1979 editor.unfold_ranges(
1980 &[fold_range.start..fold_range.end],
1981 true,
1982 false,
1983 cx,
1984 );
1985 cx.stop_propagation();
1986 })
1987 .ok();
1988 })
1989 .into_any()
1990 }),
1991 merge_adjacent: true,
1992 ..Default::default()
1993 };
1994 let display_map = cx.new_model(|cx| {
1995 DisplayMap::new(
1996 buffer.clone(),
1997 style.font(),
1998 font_size,
1999 None,
2000 show_excerpt_controls,
2001 FILE_HEADER_HEIGHT,
2002 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
2003 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
2004 fold_placeholder,
2005 cx,
2006 )
2007 });
2008
2009 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
2010
2011 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
2012
2013 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
2014 .then(|| language_settings::SoftWrap::None);
2015
2016 let mut project_subscriptions = Vec::new();
2017 if mode == EditorMode::Full {
2018 if let Some(project) = project.as_ref() {
2019 if buffer.read(cx).is_singleton() {
2020 project_subscriptions.push(cx.observe(project, |_, _, cx| {
2021 cx.emit(EditorEvent::TitleChanged);
2022 }));
2023 }
2024 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
2025 if let project::Event::RefreshInlayHints = event {
2026 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
2027 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
2028 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
2029 let focus_handle = editor.focus_handle(cx);
2030 if focus_handle.is_focused(cx) {
2031 let snapshot = buffer.read(cx).snapshot();
2032 for (range, snippet) in snippet_edits {
2033 let editor_range =
2034 language::range_from_lsp(*range).to_offset(&snapshot);
2035 editor
2036 .insert_snippet(&[editor_range], snippet.clone(), cx)
2037 .ok();
2038 }
2039 }
2040 }
2041 }
2042 }));
2043 if let Some(task_inventory) = project
2044 .read(cx)
2045 .task_store()
2046 .read(cx)
2047 .task_inventory()
2048 .cloned()
2049 {
2050 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
2051 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
2052 }));
2053 }
2054 }
2055 }
2056
2057 let inlay_hint_settings = inlay_hint_settings(
2058 selections.newest_anchor().head(),
2059 &buffer.read(cx).snapshot(cx),
2060 cx,
2061 );
2062 let focus_handle = cx.focus_handle();
2063 cx.on_focus(&focus_handle, Self::handle_focus).detach();
2064 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
2065 .detach();
2066 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
2067 .detach();
2068 cx.on_blur(&focus_handle, Self::handle_blur).detach();
2069
2070 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
2071 Some(false)
2072 } else {
2073 None
2074 };
2075
2076 let mut code_action_providers = Vec::new();
2077 if let Some(project) = project.clone() {
2078 code_action_providers.push(Arc::new(project) as Arc<_>);
2079 }
2080
2081 let mut this = Self {
2082 focus_handle,
2083 show_cursor_when_unfocused: false,
2084 last_focused_descendant: None,
2085 buffer: buffer.clone(),
2086 display_map: display_map.clone(),
2087 selections,
2088 scroll_manager: ScrollManager::new(cx),
2089 columnar_selection_tail: None,
2090 add_selections_state: None,
2091 select_next_state: None,
2092 select_prev_state: None,
2093 selection_history: Default::default(),
2094 autoclose_regions: Default::default(),
2095 snippet_stack: Default::default(),
2096 select_larger_syntax_node_stack: Vec::new(),
2097 ime_transaction: Default::default(),
2098 active_diagnostics: None,
2099 soft_wrap_mode_override,
2100 completion_provider: project.clone().map(|project| Box::new(project) as _),
2101 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
2102 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
2103 project,
2104 blink_manager: blink_manager.clone(),
2105 show_local_selections: true,
2106 mode,
2107 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
2108 show_gutter: mode == EditorMode::Full,
2109 show_line_numbers: None,
2110 use_relative_line_numbers: None,
2111 show_git_diff_gutter: None,
2112 show_code_actions: None,
2113 show_runnables: None,
2114 show_wrap_guides: None,
2115 show_indent_guides,
2116 placeholder_text: None,
2117 highlight_order: 0,
2118 highlighted_rows: HashMap::default(),
2119 background_highlights: Default::default(),
2120 gutter_highlights: TreeMap::default(),
2121 scrollbar_marker_state: ScrollbarMarkerState::default(),
2122 active_indent_guides_state: ActiveIndentGuidesState::default(),
2123 nav_history: None,
2124 context_menu: RwLock::new(None),
2125 mouse_context_menu: None,
2126 hunk_controls_menu_handle: PopoverMenuHandle::default(),
2127 completion_tasks: Default::default(),
2128 signature_help_state: SignatureHelpState::default(),
2129 auto_signature_help: None,
2130 find_all_references_task_sources: Vec::new(),
2131 next_completion_id: 0,
2132 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
2133 next_inlay_id: 0,
2134 code_action_providers,
2135 available_code_actions: Default::default(),
2136 code_actions_task: Default::default(),
2137 document_highlights_task: Default::default(),
2138 linked_editing_range_task: Default::default(),
2139 pending_rename: Default::default(),
2140 searchable: true,
2141 cursor_shape: EditorSettings::get_global(cx)
2142 .cursor_shape
2143 .unwrap_or_default(),
2144 current_line_highlight: None,
2145 autoindent_mode: Some(AutoindentMode::EachLine),
2146 collapse_matches: false,
2147 workspace: None,
2148 input_enabled: true,
2149 use_modal_editing: mode == EditorMode::Full,
2150 read_only: false,
2151 use_autoclose: true,
2152 use_auto_surround: true,
2153 auto_replace_emoji_shortcode: false,
2154 leader_peer_id: None,
2155 remote_id: None,
2156 hover_state: Default::default(),
2157 hovered_link_state: Default::default(),
2158 inline_completion_provider: None,
2159 active_inline_completion: None,
2160 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2161 expanded_hunks: ExpandedHunks::default(),
2162 gutter_hovered: false,
2163 pixel_position_of_newest_cursor: None,
2164 last_bounds: None,
2165 expect_bounds_change: None,
2166 gutter_dimensions: GutterDimensions::default(),
2167 style: None,
2168 show_cursor_names: false,
2169 hovered_cursors: Default::default(),
2170 next_editor_action_id: EditorActionId::default(),
2171 editor_actions: Rc::default(),
2172 show_inline_completions_override: None,
2173 enable_inline_completions: true,
2174 custom_context_menu: None,
2175 show_git_blame_gutter: false,
2176 show_git_blame_inline: false,
2177 show_selection_menu: None,
2178 show_git_blame_inline_delay_task: None,
2179 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2180 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2181 .session
2182 .restore_unsaved_buffers,
2183 blame: None,
2184 blame_subscription: None,
2185 tasks: Default::default(),
2186 _subscriptions: vec![
2187 cx.observe(&buffer, Self::on_buffer_changed),
2188 cx.subscribe(&buffer, Self::on_buffer_event),
2189 cx.observe(&display_map, Self::on_display_map_changed),
2190 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2191 cx.observe_global::<SettingsStore>(Self::settings_changed),
2192 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2193 cx.observe_window_activation(|editor, cx| {
2194 let active = cx.is_window_active();
2195 editor.blink_manager.update(cx, |blink_manager, cx| {
2196 if active {
2197 blink_manager.enable(cx);
2198 } else {
2199 blink_manager.disable(cx);
2200 }
2201 });
2202 }),
2203 ],
2204 tasks_update_task: None,
2205 linked_edit_ranges: Default::default(),
2206 previous_search_ranges: None,
2207 breadcrumb_header: None,
2208 focused_block: None,
2209 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2210 addons: HashMap::default(),
2211 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2212 text_style_refinement: None,
2213 active_line_trailer_provider: None,
2214 };
2215 this.tasks_update_task = Some(this.refresh_runnables(cx));
2216 this._subscriptions.extend(project_subscriptions);
2217
2218 this.end_selection(cx);
2219 this.scroll_manager.show_scrollbar(cx);
2220
2221 if mode == EditorMode::Full {
2222 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2223 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2224
2225 if this.git_blame_inline_enabled {
2226 this.git_blame_inline_enabled = true;
2227 this.start_git_blame_inline(false, cx);
2228 }
2229 }
2230
2231 this.report_editor_event("open", None, cx);
2232 this
2233 }
2234
2235 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2236 self.mouse_context_menu
2237 .as_ref()
2238 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2239 }
2240
2241 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2242 let mut key_context = KeyContext::new_with_defaults();
2243 key_context.add("Editor");
2244 let mode = match self.mode {
2245 EditorMode::SingleLine { .. } => "single_line",
2246 EditorMode::AutoHeight { .. } => "auto_height",
2247 EditorMode::Full => "full",
2248 };
2249
2250 if EditorSettings::jupyter_enabled(cx) {
2251 key_context.add("jupyter");
2252 }
2253
2254 key_context.set("mode", mode);
2255 if self.pending_rename.is_some() {
2256 key_context.add("renaming");
2257 }
2258 if self.context_menu_visible() {
2259 match self.context_menu.read().as_ref() {
2260 Some(ContextMenu::Completions(_)) => {
2261 key_context.add("menu");
2262 key_context.add("showing_completions")
2263 }
2264 Some(ContextMenu::CodeActions(_)) => {
2265 key_context.add("menu");
2266 key_context.add("showing_code_actions")
2267 }
2268 None => {}
2269 }
2270 }
2271
2272 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2273 if !self.focus_handle(cx).contains_focused(cx)
2274 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2275 {
2276 for addon in self.addons.values() {
2277 addon.extend_key_context(&mut key_context, cx)
2278 }
2279 }
2280
2281 if let Some(extension) = self
2282 .buffer
2283 .read(cx)
2284 .as_singleton()
2285 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2286 {
2287 key_context.set("extension", extension.to_string());
2288 }
2289
2290 if self.has_active_inline_completion(cx) {
2291 key_context.add("copilot_suggestion");
2292 key_context.add("inline_completion");
2293 }
2294
2295 key_context
2296 }
2297
2298 pub fn new_file(
2299 workspace: &mut Workspace,
2300 _: &workspace::NewFile,
2301 cx: &mut ViewContext<Workspace>,
2302 ) {
2303 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2304 "Failed to create buffer",
2305 cx,
2306 |e, _| match e.error_code() {
2307 ErrorCode::RemoteUpgradeRequired => Some(format!(
2308 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2309 e.error_tag("required").unwrap_or("the latest version")
2310 )),
2311 _ => None,
2312 },
2313 );
2314 }
2315
2316 pub fn new_in_workspace(
2317 workspace: &mut Workspace,
2318 cx: &mut ViewContext<Workspace>,
2319 ) -> Task<Result<View<Editor>>> {
2320 let project = workspace.project().clone();
2321 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2322
2323 cx.spawn(|workspace, mut cx| async move {
2324 let buffer = create.await?;
2325 workspace.update(&mut cx, |workspace, cx| {
2326 let editor =
2327 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2328 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2329 editor
2330 })
2331 })
2332 }
2333
2334 fn new_file_vertical(
2335 workspace: &mut Workspace,
2336 _: &workspace::NewFileSplitVertical,
2337 cx: &mut ViewContext<Workspace>,
2338 ) {
2339 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2340 }
2341
2342 fn new_file_horizontal(
2343 workspace: &mut Workspace,
2344 _: &workspace::NewFileSplitHorizontal,
2345 cx: &mut ViewContext<Workspace>,
2346 ) {
2347 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2348 }
2349
2350 fn new_file_in_direction(
2351 workspace: &mut Workspace,
2352 direction: SplitDirection,
2353 cx: &mut ViewContext<Workspace>,
2354 ) {
2355 let project = workspace.project().clone();
2356 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2357
2358 cx.spawn(|workspace, mut cx| async move {
2359 let buffer = create.await?;
2360 workspace.update(&mut cx, move |workspace, cx| {
2361 workspace.split_item(
2362 direction,
2363 Box::new(
2364 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2365 ),
2366 cx,
2367 )
2368 })?;
2369 anyhow::Ok(())
2370 })
2371 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2372 ErrorCode::RemoteUpgradeRequired => Some(format!(
2373 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2374 e.error_tag("required").unwrap_or("the latest version")
2375 )),
2376 _ => None,
2377 });
2378 }
2379
2380 pub fn leader_peer_id(&self) -> Option<PeerId> {
2381 self.leader_peer_id
2382 }
2383
2384 pub fn buffer(&self) -> &Model<MultiBuffer> {
2385 &self.buffer
2386 }
2387
2388 pub fn workspace(&self) -> Option<View<Workspace>> {
2389 self.workspace.as_ref()?.0.upgrade()
2390 }
2391
2392 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2393 self.buffer().read(cx).title(cx)
2394 }
2395
2396 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2397 let git_blame_gutter_max_author_length = self
2398 .render_git_blame_gutter(cx)
2399 .then(|| {
2400 if let Some(blame) = self.blame.as_ref() {
2401 let max_author_length =
2402 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2403 Some(max_author_length)
2404 } else {
2405 None
2406 }
2407 })
2408 .flatten();
2409
2410 EditorSnapshot {
2411 mode: self.mode,
2412 show_gutter: self.show_gutter,
2413 show_line_numbers: self.show_line_numbers,
2414 show_git_diff_gutter: self.show_git_diff_gutter,
2415 show_code_actions: self.show_code_actions,
2416 show_runnables: self.show_runnables,
2417 git_blame_gutter_max_author_length,
2418 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2419 scroll_anchor: self.scroll_manager.anchor(),
2420 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2421 placeholder_text: self.placeholder_text.clone(),
2422 is_focused: self.focus_handle.is_focused(cx),
2423 current_line_highlight: self
2424 .current_line_highlight
2425 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2426 gutter_hovered: self.gutter_hovered,
2427 }
2428 }
2429
2430 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2431 self.buffer.read(cx).language_at(point, cx)
2432 }
2433
2434 pub fn file_at<T: ToOffset>(
2435 &self,
2436 point: T,
2437 cx: &AppContext,
2438 ) -> Option<Arc<dyn language::File>> {
2439 self.buffer.read(cx).read(cx).file_at(point).cloned()
2440 }
2441
2442 pub fn active_excerpt(
2443 &self,
2444 cx: &AppContext,
2445 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2446 self.buffer
2447 .read(cx)
2448 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2449 }
2450
2451 pub fn mode(&self) -> EditorMode {
2452 self.mode
2453 }
2454
2455 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2456 self.collaboration_hub.as_deref()
2457 }
2458
2459 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2460 self.collaboration_hub = Some(hub);
2461 }
2462
2463 pub fn set_custom_context_menu(
2464 &mut self,
2465 f: impl 'static
2466 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2467 ) {
2468 self.custom_context_menu = Some(Box::new(f))
2469 }
2470
2471 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2472 self.completion_provider = provider;
2473 }
2474
2475 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2476 self.semantics_provider.clone()
2477 }
2478
2479 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2480 self.semantics_provider = provider;
2481 }
2482
2483 pub fn set_inline_completion_provider<T>(
2484 &mut self,
2485 provider: Option<Model<T>>,
2486 cx: &mut ViewContext<Self>,
2487 ) where
2488 T: InlineCompletionProvider,
2489 {
2490 self.inline_completion_provider =
2491 provider.map(|provider| RegisteredInlineCompletionProvider {
2492 _subscription: cx.observe(&provider, |this, _, cx| {
2493 if this.focus_handle.is_focused(cx) {
2494 this.update_visible_inline_completion(cx);
2495 }
2496 }),
2497 provider: Arc::new(provider),
2498 });
2499 self.refresh_inline_completion(false, false, cx);
2500 }
2501
2502 pub fn set_active_line_trailer_provider<T>(
2503 &mut self,
2504 provider: Option<T>,
2505 _cx: &mut ViewContext<Self>,
2506 ) where
2507 T: ActiveLineTrailerProvider + 'static,
2508 {
2509 self.active_line_trailer_provider = provider.map(|provider| Box::new(provider) as Box<_>);
2510 }
2511
2512 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2513 self.placeholder_text.as_deref()
2514 }
2515
2516 pub fn set_placeholder_text(
2517 &mut self,
2518 placeholder_text: impl Into<Arc<str>>,
2519 cx: &mut ViewContext<Self>,
2520 ) {
2521 let placeholder_text = Some(placeholder_text.into());
2522 if self.placeholder_text != placeholder_text {
2523 self.placeholder_text = placeholder_text;
2524 cx.notify();
2525 }
2526 }
2527
2528 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2529 self.cursor_shape = cursor_shape;
2530
2531 // Disrupt blink for immediate user feedback that the cursor shape has changed
2532 self.blink_manager.update(cx, BlinkManager::show_cursor);
2533
2534 cx.notify();
2535 }
2536
2537 pub fn set_current_line_highlight(
2538 &mut self,
2539 current_line_highlight: Option<CurrentLineHighlight>,
2540 ) {
2541 self.current_line_highlight = current_line_highlight;
2542 }
2543
2544 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2545 self.collapse_matches = collapse_matches;
2546 }
2547
2548 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2549 if self.collapse_matches {
2550 return range.start..range.start;
2551 }
2552 range.clone()
2553 }
2554
2555 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2556 if self.display_map.read(cx).clip_at_line_ends != clip {
2557 self.display_map
2558 .update(cx, |map, _| map.clip_at_line_ends = clip);
2559 }
2560 }
2561
2562 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2563 self.input_enabled = input_enabled;
2564 }
2565
2566 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2567 self.enable_inline_completions = enabled;
2568 }
2569
2570 pub fn set_autoindent(&mut self, autoindent: bool) {
2571 if autoindent {
2572 self.autoindent_mode = Some(AutoindentMode::EachLine);
2573 } else {
2574 self.autoindent_mode = None;
2575 }
2576 }
2577
2578 pub fn read_only(&self, cx: &AppContext) -> bool {
2579 self.read_only || self.buffer.read(cx).read_only()
2580 }
2581
2582 pub fn set_read_only(&mut self, read_only: bool) {
2583 self.read_only = read_only;
2584 }
2585
2586 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2587 self.use_autoclose = autoclose;
2588 }
2589
2590 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2591 self.use_auto_surround = auto_surround;
2592 }
2593
2594 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2595 self.auto_replace_emoji_shortcode = auto_replace;
2596 }
2597
2598 pub fn toggle_inline_completions(
2599 &mut self,
2600 _: &ToggleInlineCompletions,
2601 cx: &mut ViewContext<Self>,
2602 ) {
2603 if self.show_inline_completions_override.is_some() {
2604 self.set_show_inline_completions(None, cx);
2605 } else {
2606 let cursor = self.selections.newest_anchor().head();
2607 if let Some((buffer, cursor_buffer_position)) =
2608 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2609 {
2610 let show_inline_completions =
2611 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2612 self.set_show_inline_completions(Some(show_inline_completions), cx);
2613 }
2614 }
2615 }
2616
2617 pub fn set_show_inline_completions(
2618 &mut self,
2619 show_inline_completions: Option<bool>,
2620 cx: &mut ViewContext<Self>,
2621 ) {
2622 self.show_inline_completions_override = show_inline_completions;
2623 self.refresh_inline_completion(false, true, cx);
2624 }
2625
2626 fn should_show_inline_completions(
2627 &self,
2628 buffer: &Model<Buffer>,
2629 buffer_position: language::Anchor,
2630 cx: &AppContext,
2631 ) -> bool {
2632 if !self.snippet_stack.is_empty() {
2633 return false;
2634 }
2635
2636 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
2637 return false;
2638 }
2639
2640 if let Some(provider) = self.inline_completion_provider() {
2641 if let Some(show_inline_completions) = self.show_inline_completions_override {
2642 show_inline_completions
2643 } else {
2644 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2645 }
2646 } else {
2647 false
2648 }
2649 }
2650
2651 fn inline_completions_disabled_in_scope(
2652 &self,
2653 buffer: &Model<Buffer>,
2654 buffer_position: language::Anchor,
2655 cx: &AppContext,
2656 ) -> bool {
2657 let snapshot = buffer.read(cx).snapshot();
2658 let settings = snapshot.settings_at(buffer_position, cx);
2659
2660 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
2661 return false;
2662 };
2663
2664 scope.override_name().map_or(false, |scope_name| {
2665 settings
2666 .inline_completions_disabled_in
2667 .iter()
2668 .any(|s| s == scope_name)
2669 })
2670 }
2671
2672 pub fn set_use_modal_editing(&mut self, to: bool) {
2673 self.use_modal_editing = to;
2674 }
2675
2676 pub fn use_modal_editing(&self) -> bool {
2677 self.use_modal_editing
2678 }
2679
2680 fn selections_did_change(
2681 &mut self,
2682 local: bool,
2683 old_cursor_position: &Anchor,
2684 show_completions: bool,
2685 cx: &mut ViewContext<Self>,
2686 ) {
2687 cx.invalidate_character_coordinates();
2688
2689 // Copy selections to primary selection buffer
2690 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2691 if local {
2692 let selections = self.selections.all::<usize>(cx);
2693 let buffer_handle = self.buffer.read(cx).read(cx);
2694
2695 let mut text = String::new();
2696 for (index, selection) in selections.iter().enumerate() {
2697 let text_for_selection = buffer_handle
2698 .text_for_range(selection.start..selection.end)
2699 .collect::<String>();
2700
2701 text.push_str(&text_for_selection);
2702 if index != selections.len() - 1 {
2703 text.push('\n');
2704 }
2705 }
2706
2707 if !text.is_empty() {
2708 cx.write_to_primary(ClipboardItem::new_string(text));
2709 }
2710 }
2711
2712 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2713 self.buffer.update(cx, |buffer, cx| {
2714 buffer.set_active_selections(
2715 &self.selections.disjoint_anchors(),
2716 self.selections.line_mode,
2717 self.cursor_shape,
2718 cx,
2719 )
2720 });
2721 }
2722 let display_map = self
2723 .display_map
2724 .update(cx, |display_map, cx| display_map.snapshot(cx));
2725 let buffer = &display_map.buffer_snapshot;
2726 self.add_selections_state = None;
2727 self.select_next_state = None;
2728 self.select_prev_state = None;
2729 self.select_larger_syntax_node_stack.clear();
2730 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2731 self.snippet_stack
2732 .invalidate(&self.selections.disjoint_anchors(), buffer);
2733 self.take_rename(false, cx);
2734
2735 let new_cursor_position = self.selections.newest_anchor().head();
2736
2737 self.push_to_nav_history(
2738 *old_cursor_position,
2739 Some(new_cursor_position.to_point(buffer)),
2740 cx,
2741 );
2742
2743 if local {
2744 let new_cursor_position = self.selections.newest_anchor().head();
2745 let mut context_menu = self.context_menu.write();
2746 let completion_menu = match context_menu.as_ref() {
2747 Some(ContextMenu::Completions(menu)) => Some(menu),
2748
2749 _ => {
2750 *context_menu = None;
2751 None
2752 }
2753 };
2754
2755 if let Some(completion_menu) = completion_menu {
2756 let cursor_position = new_cursor_position.to_offset(buffer);
2757 let (word_range, kind) =
2758 buffer.surrounding_word(completion_menu.initial_position, true);
2759 if kind == Some(CharKind::Word)
2760 && word_range.to_inclusive().contains(&cursor_position)
2761 {
2762 let mut completion_menu = completion_menu.clone();
2763 drop(context_menu);
2764
2765 let query = Self::completion_query(buffer, cursor_position);
2766 cx.spawn(move |this, mut cx| async move {
2767 completion_menu
2768 .filter(query.as_deref(), cx.background_executor().clone())
2769 .await;
2770
2771 this.update(&mut cx, |this, cx| {
2772 let mut context_menu = this.context_menu.write();
2773 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2774 return;
2775 };
2776
2777 if menu.id > completion_menu.id {
2778 return;
2779 }
2780
2781 *context_menu = Some(ContextMenu::Completions(completion_menu));
2782 drop(context_menu);
2783 cx.notify();
2784 })
2785 })
2786 .detach();
2787
2788 if show_completions {
2789 self.show_completions(&ShowCompletions { trigger: None }, cx);
2790 }
2791 } else {
2792 drop(context_menu);
2793 self.hide_context_menu(cx);
2794 }
2795 } else {
2796 drop(context_menu);
2797 }
2798
2799 hide_hover(self, cx);
2800
2801 if old_cursor_position.to_display_point(&display_map).row()
2802 != new_cursor_position.to_display_point(&display_map).row()
2803 {
2804 self.available_code_actions.take();
2805 }
2806 self.refresh_code_actions(cx);
2807 self.refresh_document_highlights(cx);
2808 refresh_matching_bracket_highlights(self, cx);
2809 self.discard_inline_completion(false, cx);
2810 linked_editing_ranges::refresh_linked_ranges(self, cx);
2811 if self.git_blame_inline_enabled {
2812 self.start_inline_blame_timer(cx);
2813 }
2814 }
2815
2816 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2817 cx.emit(EditorEvent::SelectionsChanged { local });
2818
2819 if self.selections.disjoint_anchors().len() == 1 {
2820 cx.emit(SearchEvent::ActiveMatchChanged)
2821 }
2822 cx.notify();
2823 }
2824
2825 pub fn change_selections<R>(
2826 &mut self,
2827 autoscroll: Option<Autoscroll>,
2828 cx: &mut ViewContext<Self>,
2829 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2830 ) -> R {
2831 self.change_selections_inner(autoscroll, true, cx, change)
2832 }
2833
2834 pub fn change_selections_inner<R>(
2835 &mut self,
2836 autoscroll: Option<Autoscroll>,
2837 request_completions: bool,
2838 cx: &mut ViewContext<Self>,
2839 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2840 ) -> R {
2841 let old_cursor_position = self.selections.newest_anchor().head();
2842 self.push_to_selection_history();
2843
2844 let (changed, result) = self.selections.change_with(cx, change);
2845
2846 if changed {
2847 if let Some(autoscroll) = autoscroll {
2848 self.request_autoscroll(autoscroll, cx);
2849 }
2850 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2851
2852 if self.should_open_signature_help_automatically(
2853 &old_cursor_position,
2854 self.signature_help_state.backspace_pressed(),
2855 cx,
2856 ) {
2857 self.show_signature_help(&ShowSignatureHelp, cx);
2858 }
2859 self.signature_help_state.set_backspace_pressed(false);
2860 }
2861
2862 result
2863 }
2864
2865 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2866 where
2867 I: IntoIterator<Item = (Range<S>, T)>,
2868 S: ToOffset,
2869 T: Into<Arc<str>>,
2870 {
2871 if self.read_only(cx) {
2872 return;
2873 }
2874
2875 self.buffer
2876 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2877 }
2878
2879 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2880 where
2881 I: IntoIterator<Item = (Range<S>, T)>,
2882 S: ToOffset,
2883 T: Into<Arc<str>>,
2884 {
2885 if self.read_only(cx) {
2886 return;
2887 }
2888
2889 self.buffer.update(cx, |buffer, cx| {
2890 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2891 });
2892 }
2893
2894 pub fn edit_with_block_indent<I, S, T>(
2895 &mut self,
2896 edits: I,
2897 original_indent_columns: Vec<u32>,
2898 cx: &mut ViewContext<Self>,
2899 ) where
2900 I: IntoIterator<Item = (Range<S>, T)>,
2901 S: ToOffset,
2902 T: Into<Arc<str>>,
2903 {
2904 if self.read_only(cx) {
2905 return;
2906 }
2907
2908 self.buffer.update(cx, |buffer, cx| {
2909 buffer.edit(
2910 edits,
2911 Some(AutoindentMode::Block {
2912 original_indent_columns,
2913 }),
2914 cx,
2915 )
2916 });
2917 }
2918
2919 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2920 self.hide_context_menu(cx);
2921
2922 match phase {
2923 SelectPhase::Begin {
2924 position,
2925 add,
2926 click_count,
2927 } => self.begin_selection(position, add, click_count, cx),
2928 SelectPhase::BeginColumnar {
2929 position,
2930 goal_column,
2931 reset,
2932 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2933 SelectPhase::Extend {
2934 position,
2935 click_count,
2936 } => self.extend_selection(position, click_count, cx),
2937 SelectPhase::Update {
2938 position,
2939 goal_column,
2940 scroll_delta,
2941 } => self.update_selection(position, goal_column, scroll_delta, cx),
2942 SelectPhase::End => self.end_selection(cx),
2943 }
2944 }
2945
2946 fn extend_selection(
2947 &mut self,
2948 position: DisplayPoint,
2949 click_count: usize,
2950 cx: &mut ViewContext<Self>,
2951 ) {
2952 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2953 let tail = self.selections.newest::<usize>(cx).tail();
2954 self.begin_selection(position, false, click_count, cx);
2955
2956 let position = position.to_offset(&display_map, Bias::Left);
2957 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2958
2959 let mut pending_selection = self
2960 .selections
2961 .pending_anchor()
2962 .expect("extend_selection not called with pending selection");
2963 if position >= tail {
2964 pending_selection.start = tail_anchor;
2965 } else {
2966 pending_selection.end = tail_anchor;
2967 pending_selection.reversed = true;
2968 }
2969
2970 let mut pending_mode = self.selections.pending_mode().unwrap();
2971 match &mut pending_mode {
2972 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2973 _ => {}
2974 }
2975
2976 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2977 s.set_pending(pending_selection, pending_mode)
2978 });
2979 }
2980
2981 fn begin_selection(
2982 &mut self,
2983 position: DisplayPoint,
2984 add: bool,
2985 click_count: usize,
2986 cx: &mut ViewContext<Self>,
2987 ) {
2988 if !self.focus_handle.is_focused(cx) {
2989 self.last_focused_descendant = None;
2990 cx.focus(&self.focus_handle);
2991 }
2992
2993 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2994 let buffer = &display_map.buffer_snapshot;
2995 let newest_selection = self.selections.newest_anchor().clone();
2996 let position = display_map.clip_point(position, Bias::Left);
2997
2998 let start;
2999 let end;
3000 let mode;
3001 let auto_scroll;
3002 match click_count {
3003 1 => {
3004 start = buffer.anchor_before(position.to_point(&display_map));
3005 end = start;
3006 mode = SelectMode::Character;
3007 auto_scroll = true;
3008 }
3009 2 => {
3010 let range = movement::surrounding_word(&display_map, position);
3011 start = buffer.anchor_before(range.start.to_point(&display_map));
3012 end = buffer.anchor_before(range.end.to_point(&display_map));
3013 mode = SelectMode::Word(start..end);
3014 auto_scroll = true;
3015 }
3016 3 => {
3017 let position = display_map
3018 .clip_point(position, Bias::Left)
3019 .to_point(&display_map);
3020 let line_start = display_map.prev_line_boundary(position).0;
3021 let next_line_start = buffer.clip_point(
3022 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3023 Bias::Left,
3024 );
3025 start = buffer.anchor_before(line_start);
3026 end = buffer.anchor_before(next_line_start);
3027 mode = SelectMode::Line(start..end);
3028 auto_scroll = true;
3029 }
3030 _ => {
3031 start = buffer.anchor_before(0);
3032 end = buffer.anchor_before(buffer.len());
3033 mode = SelectMode::All;
3034 auto_scroll = false;
3035 }
3036 }
3037
3038 let point_to_delete: Option<usize> = {
3039 let selected_points: Vec<Selection<Point>> =
3040 self.selections.disjoint_in_range(start..end, cx);
3041
3042 if !add || click_count > 1 {
3043 None
3044 } else if !selected_points.is_empty() {
3045 Some(selected_points[0].id)
3046 } else {
3047 let clicked_point_already_selected =
3048 self.selections.disjoint.iter().find(|selection| {
3049 selection.start.to_point(buffer) == start.to_point(buffer)
3050 || selection.end.to_point(buffer) == end.to_point(buffer)
3051 });
3052
3053 clicked_point_already_selected.map(|selection| selection.id)
3054 }
3055 };
3056
3057 let selections_count = self.selections.count();
3058
3059 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
3060 if let Some(point_to_delete) = point_to_delete {
3061 s.delete(point_to_delete);
3062
3063 if selections_count == 1 {
3064 s.set_pending_anchor_range(start..end, mode);
3065 }
3066 } else {
3067 if !add {
3068 s.clear_disjoint();
3069 } else if click_count > 1 {
3070 s.delete(newest_selection.id)
3071 }
3072
3073 s.set_pending_anchor_range(start..end, mode);
3074 }
3075 });
3076 }
3077
3078 fn begin_columnar_selection(
3079 &mut self,
3080 position: DisplayPoint,
3081 goal_column: u32,
3082 reset: bool,
3083 cx: &mut ViewContext<Self>,
3084 ) {
3085 if !self.focus_handle.is_focused(cx) {
3086 self.last_focused_descendant = None;
3087 cx.focus(&self.focus_handle);
3088 }
3089
3090 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3091
3092 if reset {
3093 let pointer_position = display_map
3094 .buffer_snapshot
3095 .anchor_before(position.to_point(&display_map));
3096
3097 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
3098 s.clear_disjoint();
3099 s.set_pending_anchor_range(
3100 pointer_position..pointer_position,
3101 SelectMode::Character,
3102 );
3103 });
3104 }
3105
3106 let tail = self.selections.newest::<Point>(cx).tail();
3107 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
3108
3109 if !reset {
3110 self.select_columns(
3111 tail.to_display_point(&display_map),
3112 position,
3113 goal_column,
3114 &display_map,
3115 cx,
3116 );
3117 }
3118 }
3119
3120 fn update_selection(
3121 &mut self,
3122 position: DisplayPoint,
3123 goal_column: u32,
3124 scroll_delta: gpui::Point<f32>,
3125 cx: &mut ViewContext<Self>,
3126 ) {
3127 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3128
3129 if let Some(tail) = self.columnar_selection_tail.as_ref() {
3130 let tail = tail.to_display_point(&display_map);
3131 self.select_columns(tail, position, goal_column, &display_map, cx);
3132 } else if let Some(mut pending) = self.selections.pending_anchor() {
3133 let buffer = self.buffer.read(cx).snapshot(cx);
3134 let head;
3135 let tail;
3136 let mode = self.selections.pending_mode().unwrap();
3137 match &mode {
3138 SelectMode::Character => {
3139 head = position.to_point(&display_map);
3140 tail = pending.tail().to_point(&buffer);
3141 }
3142 SelectMode::Word(original_range) => {
3143 let original_display_range = original_range.start.to_display_point(&display_map)
3144 ..original_range.end.to_display_point(&display_map);
3145 let original_buffer_range = original_display_range.start.to_point(&display_map)
3146 ..original_display_range.end.to_point(&display_map);
3147 if movement::is_inside_word(&display_map, position)
3148 || original_display_range.contains(&position)
3149 {
3150 let word_range = movement::surrounding_word(&display_map, position);
3151 if word_range.start < original_display_range.start {
3152 head = word_range.start.to_point(&display_map);
3153 } else {
3154 head = word_range.end.to_point(&display_map);
3155 }
3156 } else {
3157 head = position.to_point(&display_map);
3158 }
3159
3160 if head <= original_buffer_range.start {
3161 tail = original_buffer_range.end;
3162 } else {
3163 tail = original_buffer_range.start;
3164 }
3165 }
3166 SelectMode::Line(original_range) => {
3167 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3168
3169 let position = display_map
3170 .clip_point(position, Bias::Left)
3171 .to_point(&display_map);
3172 let line_start = display_map.prev_line_boundary(position).0;
3173 let next_line_start = buffer.clip_point(
3174 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3175 Bias::Left,
3176 );
3177
3178 if line_start < original_range.start {
3179 head = line_start
3180 } else {
3181 head = next_line_start
3182 }
3183
3184 if head <= original_range.start {
3185 tail = original_range.end;
3186 } else {
3187 tail = original_range.start;
3188 }
3189 }
3190 SelectMode::All => {
3191 return;
3192 }
3193 };
3194
3195 if head < tail {
3196 pending.start = buffer.anchor_before(head);
3197 pending.end = buffer.anchor_before(tail);
3198 pending.reversed = true;
3199 } else {
3200 pending.start = buffer.anchor_before(tail);
3201 pending.end = buffer.anchor_before(head);
3202 pending.reversed = false;
3203 }
3204
3205 self.change_selections(None, cx, |s| {
3206 s.set_pending(pending, mode);
3207 });
3208 } else {
3209 log::error!("update_selection dispatched with no pending selection");
3210 return;
3211 }
3212
3213 self.apply_scroll_delta(scroll_delta, cx);
3214 cx.notify();
3215 }
3216
3217 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3218 self.columnar_selection_tail.take();
3219 if self.selections.pending_anchor().is_some() {
3220 let selections = self.selections.all::<usize>(cx);
3221 self.change_selections(None, cx, |s| {
3222 s.select(selections);
3223 s.clear_pending();
3224 });
3225 }
3226 }
3227
3228 fn select_columns(
3229 &mut self,
3230 tail: DisplayPoint,
3231 head: DisplayPoint,
3232 goal_column: u32,
3233 display_map: &DisplaySnapshot,
3234 cx: &mut ViewContext<Self>,
3235 ) {
3236 let start_row = cmp::min(tail.row(), head.row());
3237 let end_row = cmp::max(tail.row(), head.row());
3238 let start_column = cmp::min(tail.column(), goal_column);
3239 let end_column = cmp::max(tail.column(), goal_column);
3240 let reversed = start_column < tail.column();
3241
3242 let selection_ranges = (start_row.0..=end_row.0)
3243 .map(DisplayRow)
3244 .filter_map(|row| {
3245 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3246 let start = display_map
3247 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3248 .to_point(display_map);
3249 let end = display_map
3250 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3251 .to_point(display_map);
3252 if reversed {
3253 Some(end..start)
3254 } else {
3255 Some(start..end)
3256 }
3257 } else {
3258 None
3259 }
3260 })
3261 .collect::<Vec<_>>();
3262
3263 self.change_selections(None, cx, |s| {
3264 s.select_ranges(selection_ranges);
3265 });
3266 cx.notify();
3267 }
3268
3269 pub fn has_pending_nonempty_selection(&self) -> bool {
3270 let pending_nonempty_selection = match self.selections.pending_anchor() {
3271 Some(Selection { start, end, .. }) => start != end,
3272 None => false,
3273 };
3274
3275 pending_nonempty_selection
3276 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3277 }
3278
3279 pub fn has_pending_selection(&self) -> bool {
3280 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3281 }
3282
3283 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3284 if self.clear_expanded_diff_hunks(cx) {
3285 cx.notify();
3286 return;
3287 }
3288 if self.dismiss_menus_and_popups(true, cx) {
3289 return;
3290 }
3291
3292 if self.mode == EditorMode::Full
3293 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3294 {
3295 return;
3296 }
3297
3298 cx.propagate();
3299 }
3300
3301 pub fn dismiss_menus_and_popups(
3302 &mut self,
3303 should_report_inline_completion_event: bool,
3304 cx: &mut ViewContext<Self>,
3305 ) -> bool {
3306 if self.take_rename(false, cx).is_some() {
3307 return true;
3308 }
3309
3310 if hide_hover(self, cx) {
3311 return true;
3312 }
3313
3314 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3315 return true;
3316 }
3317
3318 if self.hide_context_menu(cx).is_some() {
3319 return true;
3320 }
3321
3322 if self.mouse_context_menu.take().is_some() {
3323 return true;
3324 }
3325
3326 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3327 return true;
3328 }
3329
3330 if self.snippet_stack.pop().is_some() {
3331 return true;
3332 }
3333
3334 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3335 self.dismiss_diagnostics(cx);
3336 return true;
3337 }
3338
3339 false
3340 }
3341
3342 fn linked_editing_ranges_for(
3343 &self,
3344 selection: Range<text::Anchor>,
3345 cx: &AppContext,
3346 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3347 if self.linked_edit_ranges.is_empty() {
3348 return None;
3349 }
3350 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3351 selection.end.buffer_id.and_then(|end_buffer_id| {
3352 if selection.start.buffer_id != Some(end_buffer_id) {
3353 return None;
3354 }
3355 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3356 let snapshot = buffer.read(cx).snapshot();
3357 self.linked_edit_ranges
3358 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3359 .map(|ranges| (ranges, snapshot, buffer))
3360 })?;
3361 use text::ToOffset as TO;
3362 // find offset from the start of current range to current cursor position
3363 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3364
3365 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3366 let start_difference = start_offset - start_byte_offset;
3367 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3368 let end_difference = end_offset - start_byte_offset;
3369 // Current range has associated linked ranges.
3370 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3371 for range in linked_ranges.iter() {
3372 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3373 let end_offset = start_offset + end_difference;
3374 let start_offset = start_offset + start_difference;
3375 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3376 continue;
3377 }
3378 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3379 if s.start.buffer_id != selection.start.buffer_id
3380 || s.end.buffer_id != selection.end.buffer_id
3381 {
3382 return false;
3383 }
3384 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3385 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3386 }) {
3387 continue;
3388 }
3389 let start = buffer_snapshot.anchor_after(start_offset);
3390 let end = buffer_snapshot.anchor_after(end_offset);
3391 linked_edits
3392 .entry(buffer.clone())
3393 .or_default()
3394 .push(start..end);
3395 }
3396 Some(linked_edits)
3397 }
3398
3399 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3400 let text: Arc<str> = text.into();
3401
3402 if self.read_only(cx) {
3403 return;
3404 }
3405
3406 let selections = self.selections.all_adjusted(cx);
3407 let mut bracket_inserted = false;
3408 let mut edits = Vec::new();
3409 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3410 let mut new_selections = Vec::with_capacity(selections.len());
3411 let mut new_autoclose_regions = Vec::new();
3412 let snapshot = self.buffer.read(cx).read(cx);
3413
3414 for (selection, autoclose_region) in
3415 self.selections_with_autoclose_regions(selections, &snapshot)
3416 {
3417 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3418 // Determine if the inserted text matches the opening or closing
3419 // bracket of any of this language's bracket pairs.
3420 let mut bracket_pair = None;
3421 let mut is_bracket_pair_start = false;
3422 let mut is_bracket_pair_end = false;
3423 if !text.is_empty() {
3424 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3425 // and they are removing the character that triggered IME popup.
3426 for (pair, enabled) in scope.brackets() {
3427 if !pair.close && !pair.surround {
3428 continue;
3429 }
3430
3431 if enabled && pair.start.ends_with(text.as_ref()) {
3432 let prefix_len = pair.start.len() - text.len();
3433 let preceding_text_matches_prefix = prefix_len == 0
3434 || (selection.start.column >= (prefix_len as u32)
3435 && snapshot.contains_str_at(
3436 Point::new(
3437 selection.start.row,
3438 selection.start.column - (prefix_len as u32),
3439 ),
3440 &pair.start[..prefix_len],
3441 ));
3442 if preceding_text_matches_prefix {
3443 bracket_pair = Some(pair.clone());
3444 is_bracket_pair_start = true;
3445 break;
3446 }
3447 }
3448 if pair.end.as_str() == text.as_ref() {
3449 bracket_pair = Some(pair.clone());
3450 is_bracket_pair_end = true;
3451 break;
3452 }
3453 }
3454 }
3455
3456 if let Some(bracket_pair) = bracket_pair {
3457 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3458 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3459 let auto_surround =
3460 self.use_auto_surround && snapshot_settings.use_auto_surround;
3461 if selection.is_empty() {
3462 if is_bracket_pair_start {
3463 // If the inserted text is a suffix of an opening bracket and the
3464 // selection is preceded by the rest of the opening bracket, then
3465 // insert the closing bracket.
3466 let following_text_allows_autoclose = snapshot
3467 .chars_at(selection.start)
3468 .next()
3469 .map_or(true, |c| scope.should_autoclose_before(c));
3470
3471 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3472 && bracket_pair.start.len() == 1
3473 {
3474 let target = bracket_pair.start.chars().next().unwrap();
3475 let current_line_count = snapshot
3476 .reversed_chars_at(selection.start)
3477 .take_while(|&c| c != '\n')
3478 .filter(|&c| c == target)
3479 .count();
3480 current_line_count % 2 == 1
3481 } else {
3482 false
3483 };
3484
3485 if autoclose
3486 && bracket_pair.close
3487 && following_text_allows_autoclose
3488 && !is_closing_quote
3489 {
3490 let anchor = snapshot.anchor_before(selection.end);
3491 new_selections.push((selection.map(|_| anchor), text.len()));
3492 new_autoclose_regions.push((
3493 anchor,
3494 text.len(),
3495 selection.id,
3496 bracket_pair.clone(),
3497 ));
3498 edits.push((
3499 selection.range(),
3500 format!("{}{}", text, bracket_pair.end).into(),
3501 ));
3502 bracket_inserted = true;
3503 continue;
3504 }
3505 }
3506
3507 if let Some(region) = autoclose_region {
3508 // If the selection is followed by an auto-inserted closing bracket,
3509 // then don't insert that closing bracket again; just move the selection
3510 // past the closing bracket.
3511 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3512 && text.as_ref() == region.pair.end.as_str();
3513 if should_skip {
3514 let anchor = snapshot.anchor_after(selection.end);
3515 new_selections
3516 .push((selection.map(|_| anchor), region.pair.end.len()));
3517 continue;
3518 }
3519 }
3520
3521 let always_treat_brackets_as_autoclosed = snapshot
3522 .settings_at(selection.start, cx)
3523 .always_treat_brackets_as_autoclosed;
3524 if always_treat_brackets_as_autoclosed
3525 && is_bracket_pair_end
3526 && snapshot.contains_str_at(selection.end, text.as_ref())
3527 {
3528 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3529 // and the inserted text is a closing bracket and the selection is followed
3530 // by the closing bracket then move the selection past the closing bracket.
3531 let anchor = snapshot.anchor_after(selection.end);
3532 new_selections.push((selection.map(|_| anchor), text.len()));
3533 continue;
3534 }
3535 }
3536 // If an opening bracket is 1 character long and is typed while
3537 // text is selected, then surround that text with the bracket pair.
3538 else if auto_surround
3539 && bracket_pair.surround
3540 && is_bracket_pair_start
3541 && bracket_pair.start.chars().count() == 1
3542 {
3543 edits.push((selection.start..selection.start, text.clone()));
3544 edits.push((
3545 selection.end..selection.end,
3546 bracket_pair.end.as_str().into(),
3547 ));
3548 bracket_inserted = true;
3549 new_selections.push((
3550 Selection {
3551 id: selection.id,
3552 start: snapshot.anchor_after(selection.start),
3553 end: snapshot.anchor_before(selection.end),
3554 reversed: selection.reversed,
3555 goal: selection.goal,
3556 },
3557 0,
3558 ));
3559 continue;
3560 }
3561 }
3562 }
3563
3564 if self.auto_replace_emoji_shortcode
3565 && selection.is_empty()
3566 && text.as_ref().ends_with(':')
3567 {
3568 if let Some(possible_emoji_short_code) =
3569 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3570 {
3571 if !possible_emoji_short_code.is_empty() {
3572 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3573 let emoji_shortcode_start = Point::new(
3574 selection.start.row,
3575 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3576 );
3577
3578 // Remove shortcode from buffer
3579 edits.push((
3580 emoji_shortcode_start..selection.start,
3581 "".to_string().into(),
3582 ));
3583 new_selections.push((
3584 Selection {
3585 id: selection.id,
3586 start: snapshot.anchor_after(emoji_shortcode_start),
3587 end: snapshot.anchor_before(selection.start),
3588 reversed: selection.reversed,
3589 goal: selection.goal,
3590 },
3591 0,
3592 ));
3593
3594 // Insert emoji
3595 let selection_start_anchor = snapshot.anchor_after(selection.start);
3596 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3597 edits.push((selection.start..selection.end, emoji.to_string().into()));
3598
3599 continue;
3600 }
3601 }
3602 }
3603 }
3604
3605 // If not handling any auto-close operation, then just replace the selected
3606 // text with the given input and move the selection to the end of the
3607 // newly inserted text.
3608 let anchor = snapshot.anchor_after(selection.end);
3609 if !self.linked_edit_ranges.is_empty() {
3610 let start_anchor = snapshot.anchor_before(selection.start);
3611
3612 let is_word_char = text.chars().next().map_or(true, |char| {
3613 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3614 classifier.is_word(char)
3615 });
3616
3617 if is_word_char {
3618 if let Some(ranges) = self
3619 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3620 {
3621 for (buffer, edits) in ranges {
3622 linked_edits
3623 .entry(buffer.clone())
3624 .or_default()
3625 .extend(edits.into_iter().map(|range| (range, text.clone())));
3626 }
3627 }
3628 }
3629 }
3630
3631 new_selections.push((selection.map(|_| anchor), 0));
3632 edits.push((selection.start..selection.end, text.clone()));
3633 }
3634
3635 drop(snapshot);
3636
3637 self.transact(cx, |this, cx| {
3638 this.buffer.update(cx, |buffer, cx| {
3639 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3640 });
3641 for (buffer, edits) in linked_edits {
3642 buffer.update(cx, |buffer, cx| {
3643 let snapshot = buffer.snapshot();
3644 let edits = edits
3645 .into_iter()
3646 .map(|(range, text)| {
3647 use text::ToPoint as TP;
3648 let end_point = TP::to_point(&range.end, &snapshot);
3649 let start_point = TP::to_point(&range.start, &snapshot);
3650 (start_point..end_point, text)
3651 })
3652 .sorted_by_key(|(range, _)| range.start)
3653 .collect::<Vec<_>>();
3654 buffer.edit(edits, None, cx);
3655 })
3656 }
3657 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3658 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3659 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3660 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3661 .zip(new_selection_deltas)
3662 .map(|(selection, delta)| Selection {
3663 id: selection.id,
3664 start: selection.start + delta,
3665 end: selection.end + delta,
3666 reversed: selection.reversed,
3667 goal: SelectionGoal::None,
3668 })
3669 .collect::<Vec<_>>();
3670
3671 let mut i = 0;
3672 for (position, delta, selection_id, pair) in new_autoclose_regions {
3673 let position = position.to_offset(&map.buffer_snapshot) + delta;
3674 let start = map.buffer_snapshot.anchor_before(position);
3675 let end = map.buffer_snapshot.anchor_after(position);
3676 while let Some(existing_state) = this.autoclose_regions.get(i) {
3677 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3678 Ordering::Less => i += 1,
3679 Ordering::Greater => break,
3680 Ordering::Equal => {
3681 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3682 Ordering::Less => i += 1,
3683 Ordering::Equal => break,
3684 Ordering::Greater => break,
3685 }
3686 }
3687 }
3688 }
3689 this.autoclose_regions.insert(
3690 i,
3691 AutocloseRegion {
3692 selection_id,
3693 range: start..end,
3694 pair,
3695 },
3696 );
3697 }
3698
3699 let had_active_inline_completion = this.has_active_inline_completion(cx);
3700 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3701 s.select(new_selections)
3702 });
3703
3704 if !bracket_inserted {
3705 if let Some(on_type_format_task) =
3706 this.trigger_on_type_formatting(text.to_string(), cx)
3707 {
3708 on_type_format_task.detach_and_log_err(cx);
3709 }
3710 }
3711
3712 let editor_settings = EditorSettings::get_global(cx);
3713 if bracket_inserted
3714 && (editor_settings.auto_signature_help
3715 || editor_settings.show_signature_help_after_edits)
3716 {
3717 this.show_signature_help(&ShowSignatureHelp, cx);
3718 }
3719
3720 let trigger_in_words = !had_active_inline_completion;
3721 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3722 linked_editing_ranges::refresh_linked_ranges(this, cx);
3723 this.refresh_inline_completion(true, false, cx);
3724 });
3725 }
3726
3727 fn find_possible_emoji_shortcode_at_position(
3728 snapshot: &MultiBufferSnapshot,
3729 position: Point,
3730 ) -> Option<String> {
3731 let mut chars = Vec::new();
3732 let mut found_colon = false;
3733 for char in snapshot.reversed_chars_at(position).take(100) {
3734 // Found a possible emoji shortcode in the middle of the buffer
3735 if found_colon {
3736 if char.is_whitespace() {
3737 chars.reverse();
3738 return Some(chars.iter().collect());
3739 }
3740 // If the previous character is not a whitespace, we are in the middle of a word
3741 // and we only want to complete the shortcode if the word is made up of other emojis
3742 let mut containing_word = String::new();
3743 for ch in snapshot
3744 .reversed_chars_at(position)
3745 .skip(chars.len() + 1)
3746 .take(100)
3747 {
3748 if ch.is_whitespace() {
3749 break;
3750 }
3751 containing_word.push(ch);
3752 }
3753 let containing_word = containing_word.chars().rev().collect::<String>();
3754 if util::word_consists_of_emojis(containing_word.as_str()) {
3755 chars.reverse();
3756 return Some(chars.iter().collect());
3757 }
3758 }
3759
3760 if char.is_whitespace() || !char.is_ascii() {
3761 return None;
3762 }
3763 if char == ':' {
3764 found_colon = true;
3765 } else {
3766 chars.push(char);
3767 }
3768 }
3769 // Found a possible emoji shortcode at the beginning of the buffer
3770 chars.reverse();
3771 Some(chars.iter().collect())
3772 }
3773
3774 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3775 self.transact(cx, |this, cx| {
3776 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3777 let selections = this.selections.all::<usize>(cx);
3778 let multi_buffer = this.buffer.read(cx);
3779 let buffer = multi_buffer.snapshot(cx);
3780 selections
3781 .iter()
3782 .map(|selection| {
3783 let start_point = selection.start.to_point(&buffer);
3784 let mut indent =
3785 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3786 indent.len = cmp::min(indent.len, start_point.column);
3787 let start = selection.start;
3788 let end = selection.end;
3789 let selection_is_empty = start == end;
3790 let language_scope = buffer.language_scope_at(start);
3791 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3792 &language_scope
3793 {
3794 let leading_whitespace_len = buffer
3795 .reversed_chars_at(start)
3796 .take_while(|c| c.is_whitespace() && *c != '\n')
3797 .map(|c| c.len_utf8())
3798 .sum::<usize>();
3799
3800 let trailing_whitespace_len = buffer
3801 .chars_at(end)
3802 .take_while(|c| c.is_whitespace() && *c != '\n')
3803 .map(|c| c.len_utf8())
3804 .sum::<usize>();
3805
3806 let insert_extra_newline =
3807 language.brackets().any(|(pair, enabled)| {
3808 let pair_start = pair.start.trim_end();
3809 let pair_end = pair.end.trim_start();
3810
3811 enabled
3812 && pair.newline
3813 && buffer.contains_str_at(
3814 end + trailing_whitespace_len,
3815 pair_end,
3816 )
3817 && buffer.contains_str_at(
3818 (start - leading_whitespace_len)
3819 .saturating_sub(pair_start.len()),
3820 pair_start,
3821 )
3822 });
3823
3824 // Comment extension on newline is allowed only for cursor selections
3825 let comment_delimiter = maybe!({
3826 if !selection_is_empty {
3827 return None;
3828 }
3829
3830 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3831 return None;
3832 }
3833
3834 let delimiters = language.line_comment_prefixes();
3835 let max_len_of_delimiter =
3836 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3837 let (snapshot, range) =
3838 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3839
3840 let mut index_of_first_non_whitespace = 0;
3841 let comment_candidate = snapshot
3842 .chars_for_range(range)
3843 .skip_while(|c| {
3844 let should_skip = c.is_whitespace();
3845 if should_skip {
3846 index_of_first_non_whitespace += 1;
3847 }
3848 should_skip
3849 })
3850 .take(max_len_of_delimiter)
3851 .collect::<String>();
3852 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3853 comment_candidate.starts_with(comment_prefix.as_ref())
3854 })?;
3855 let cursor_is_placed_after_comment_marker =
3856 index_of_first_non_whitespace + comment_prefix.len()
3857 <= start_point.column as usize;
3858 if cursor_is_placed_after_comment_marker {
3859 Some(comment_prefix.clone())
3860 } else {
3861 None
3862 }
3863 });
3864 (comment_delimiter, insert_extra_newline)
3865 } else {
3866 (None, false)
3867 };
3868
3869 let capacity_for_delimiter = comment_delimiter
3870 .as_deref()
3871 .map(str::len)
3872 .unwrap_or_default();
3873 let mut new_text =
3874 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3875 new_text.push('\n');
3876 new_text.extend(indent.chars());
3877 if let Some(delimiter) = &comment_delimiter {
3878 new_text.push_str(delimiter);
3879 }
3880 if insert_extra_newline {
3881 new_text = new_text.repeat(2);
3882 }
3883
3884 let anchor = buffer.anchor_after(end);
3885 let new_selection = selection.map(|_| anchor);
3886 (
3887 (start..end, new_text),
3888 (insert_extra_newline, new_selection),
3889 )
3890 })
3891 .unzip()
3892 };
3893
3894 this.edit_with_autoindent(edits, cx);
3895 let buffer = this.buffer.read(cx).snapshot(cx);
3896 let new_selections = selection_fixup_info
3897 .into_iter()
3898 .map(|(extra_newline_inserted, new_selection)| {
3899 let mut cursor = new_selection.end.to_point(&buffer);
3900 if extra_newline_inserted {
3901 cursor.row -= 1;
3902 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3903 }
3904 new_selection.map(|_| cursor)
3905 })
3906 .collect();
3907
3908 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3909 this.refresh_inline_completion(true, false, cx);
3910 });
3911 }
3912
3913 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3914 let buffer = self.buffer.read(cx);
3915 let snapshot = buffer.snapshot(cx);
3916
3917 let mut edits = Vec::new();
3918 let mut rows = Vec::new();
3919
3920 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3921 let cursor = selection.head();
3922 let row = cursor.row;
3923
3924 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3925
3926 let newline = "\n".to_string();
3927 edits.push((start_of_line..start_of_line, newline));
3928
3929 rows.push(row + rows_inserted as u32);
3930 }
3931
3932 self.transact(cx, |editor, cx| {
3933 editor.edit(edits, cx);
3934
3935 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3936 let mut index = 0;
3937 s.move_cursors_with(|map, _, _| {
3938 let row = rows[index];
3939 index += 1;
3940
3941 let point = Point::new(row, 0);
3942 let boundary = map.next_line_boundary(point).1;
3943 let clipped = map.clip_point(boundary, Bias::Left);
3944
3945 (clipped, SelectionGoal::None)
3946 });
3947 });
3948
3949 let mut indent_edits = Vec::new();
3950 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3951 for row in rows {
3952 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3953 for (row, indent) in indents {
3954 if indent.len == 0 {
3955 continue;
3956 }
3957
3958 let text = match indent.kind {
3959 IndentKind::Space => " ".repeat(indent.len as usize),
3960 IndentKind::Tab => "\t".repeat(indent.len as usize),
3961 };
3962 let point = Point::new(row.0, 0);
3963 indent_edits.push((point..point, text));
3964 }
3965 }
3966 editor.edit(indent_edits, cx);
3967 });
3968 }
3969
3970 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3971 let buffer = self.buffer.read(cx);
3972 let snapshot = buffer.snapshot(cx);
3973
3974 let mut edits = Vec::new();
3975 let mut rows = Vec::new();
3976 let mut rows_inserted = 0;
3977
3978 for selection in self.selections.all_adjusted(cx) {
3979 let cursor = selection.head();
3980 let row = cursor.row;
3981
3982 let point = Point::new(row + 1, 0);
3983 let start_of_line = snapshot.clip_point(point, Bias::Left);
3984
3985 let newline = "\n".to_string();
3986 edits.push((start_of_line..start_of_line, newline));
3987
3988 rows_inserted += 1;
3989 rows.push(row + rows_inserted);
3990 }
3991
3992 self.transact(cx, |editor, cx| {
3993 editor.edit(edits, cx);
3994
3995 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3996 let mut index = 0;
3997 s.move_cursors_with(|map, _, _| {
3998 let row = rows[index];
3999 index += 1;
4000
4001 let point = Point::new(row, 0);
4002 let boundary = map.next_line_boundary(point).1;
4003 let clipped = map.clip_point(boundary, Bias::Left);
4004
4005 (clipped, SelectionGoal::None)
4006 });
4007 });
4008
4009 let mut indent_edits = Vec::new();
4010 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
4011 for row in rows {
4012 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
4013 for (row, indent) in indents {
4014 if indent.len == 0 {
4015 continue;
4016 }
4017
4018 let text = match indent.kind {
4019 IndentKind::Space => " ".repeat(indent.len as usize),
4020 IndentKind::Tab => "\t".repeat(indent.len as usize),
4021 };
4022 let point = Point::new(row.0, 0);
4023 indent_edits.push((point..point, text));
4024 }
4025 }
4026 editor.edit(indent_edits, cx);
4027 });
4028 }
4029
4030 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
4031 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
4032 original_indent_columns: Vec::new(),
4033 });
4034 self.insert_with_autoindent_mode(text, autoindent, cx);
4035 }
4036
4037 fn insert_with_autoindent_mode(
4038 &mut self,
4039 text: &str,
4040 autoindent_mode: Option<AutoindentMode>,
4041 cx: &mut ViewContext<Self>,
4042 ) {
4043 if self.read_only(cx) {
4044 return;
4045 }
4046
4047 let text: Arc<str> = text.into();
4048 self.transact(cx, |this, cx| {
4049 let old_selections = this.selections.all_adjusted(cx);
4050 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
4051 let anchors = {
4052 let snapshot = buffer.read(cx);
4053 old_selections
4054 .iter()
4055 .map(|s| {
4056 let anchor = snapshot.anchor_after(s.head());
4057 s.map(|_| anchor)
4058 })
4059 .collect::<Vec<_>>()
4060 };
4061 buffer.edit(
4062 old_selections
4063 .iter()
4064 .map(|s| (s.start..s.end, text.clone())),
4065 autoindent_mode,
4066 cx,
4067 );
4068 anchors
4069 });
4070
4071 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4072 s.select_anchors(selection_anchors);
4073 })
4074 });
4075 }
4076
4077 fn trigger_completion_on_input(
4078 &mut self,
4079 text: &str,
4080 trigger_in_words: bool,
4081 cx: &mut ViewContext<Self>,
4082 ) {
4083 if self.is_completion_trigger(text, trigger_in_words, cx) {
4084 self.show_completions(
4085 &ShowCompletions {
4086 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
4087 },
4088 cx,
4089 );
4090 } else {
4091 self.hide_context_menu(cx);
4092 }
4093 }
4094
4095 fn is_completion_trigger(
4096 &self,
4097 text: &str,
4098 trigger_in_words: bool,
4099 cx: &mut ViewContext<Self>,
4100 ) -> bool {
4101 let position = self.selections.newest_anchor().head();
4102 let multibuffer = self.buffer.read(cx);
4103 let Some(buffer) = position
4104 .buffer_id
4105 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
4106 else {
4107 return false;
4108 };
4109
4110 if let Some(completion_provider) = &self.completion_provider {
4111 completion_provider.is_completion_trigger(
4112 &buffer,
4113 position.text_anchor,
4114 text,
4115 trigger_in_words,
4116 cx,
4117 )
4118 } else {
4119 false
4120 }
4121 }
4122
4123 /// If any empty selections is touching the start of its innermost containing autoclose
4124 /// region, expand it to select the brackets.
4125 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
4126 let selections = self.selections.all::<usize>(cx);
4127 let buffer = self.buffer.read(cx).read(cx);
4128 let new_selections = self
4129 .selections_with_autoclose_regions(selections, &buffer)
4130 .map(|(mut selection, region)| {
4131 if !selection.is_empty() {
4132 return selection;
4133 }
4134
4135 if let Some(region) = region {
4136 let mut range = region.range.to_offset(&buffer);
4137 if selection.start == range.start && range.start >= region.pair.start.len() {
4138 range.start -= region.pair.start.len();
4139 if buffer.contains_str_at(range.start, ®ion.pair.start)
4140 && buffer.contains_str_at(range.end, ®ion.pair.end)
4141 {
4142 range.end += region.pair.end.len();
4143 selection.start = range.start;
4144 selection.end = range.end;
4145
4146 return selection;
4147 }
4148 }
4149 }
4150
4151 let always_treat_brackets_as_autoclosed = buffer
4152 .settings_at(selection.start, cx)
4153 .always_treat_brackets_as_autoclosed;
4154
4155 if !always_treat_brackets_as_autoclosed {
4156 return selection;
4157 }
4158
4159 if let Some(scope) = buffer.language_scope_at(selection.start) {
4160 for (pair, enabled) in scope.brackets() {
4161 if !enabled || !pair.close {
4162 continue;
4163 }
4164
4165 if buffer.contains_str_at(selection.start, &pair.end) {
4166 let pair_start_len = pair.start.len();
4167 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
4168 {
4169 selection.start -= pair_start_len;
4170 selection.end += pair.end.len();
4171
4172 return selection;
4173 }
4174 }
4175 }
4176 }
4177
4178 selection
4179 })
4180 .collect();
4181
4182 drop(buffer);
4183 self.change_selections(None, cx, |selections| selections.select(new_selections));
4184 }
4185
4186 /// Iterate the given selections, and for each one, find the smallest surrounding
4187 /// autoclose region. This uses the ordering of the selections and the autoclose
4188 /// regions to avoid repeated comparisons.
4189 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4190 &'a self,
4191 selections: impl IntoIterator<Item = Selection<D>>,
4192 buffer: &'a MultiBufferSnapshot,
4193 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4194 let mut i = 0;
4195 let mut regions = self.autoclose_regions.as_slice();
4196 selections.into_iter().map(move |selection| {
4197 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4198
4199 let mut enclosing = None;
4200 while let Some(pair_state) = regions.get(i) {
4201 if pair_state.range.end.to_offset(buffer) < range.start {
4202 regions = ®ions[i + 1..];
4203 i = 0;
4204 } else if pair_state.range.start.to_offset(buffer) > range.end {
4205 break;
4206 } else {
4207 if pair_state.selection_id == selection.id {
4208 enclosing = Some(pair_state);
4209 }
4210 i += 1;
4211 }
4212 }
4213
4214 (selection, enclosing)
4215 })
4216 }
4217
4218 /// Remove any autoclose regions that no longer contain their selection.
4219 fn invalidate_autoclose_regions(
4220 &mut self,
4221 mut selections: &[Selection<Anchor>],
4222 buffer: &MultiBufferSnapshot,
4223 ) {
4224 self.autoclose_regions.retain(|state| {
4225 let mut i = 0;
4226 while let Some(selection) = selections.get(i) {
4227 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4228 selections = &selections[1..];
4229 continue;
4230 }
4231 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4232 break;
4233 }
4234 if selection.id == state.selection_id {
4235 return true;
4236 } else {
4237 i += 1;
4238 }
4239 }
4240 false
4241 });
4242 }
4243
4244 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4245 let offset = position.to_offset(buffer);
4246 let (word_range, kind) = buffer.surrounding_word(offset, true);
4247 if offset > word_range.start && kind == Some(CharKind::Word) {
4248 Some(
4249 buffer
4250 .text_for_range(word_range.start..offset)
4251 .collect::<String>(),
4252 )
4253 } else {
4254 None
4255 }
4256 }
4257
4258 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4259 self.refresh_inlay_hints(
4260 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4261 cx,
4262 );
4263 }
4264
4265 pub fn inlay_hints_enabled(&self) -> bool {
4266 self.inlay_hint_cache.enabled
4267 }
4268
4269 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4270 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4271 return;
4272 }
4273
4274 let reason_description = reason.description();
4275 let ignore_debounce = matches!(
4276 reason,
4277 InlayHintRefreshReason::SettingsChange(_)
4278 | InlayHintRefreshReason::Toggle(_)
4279 | InlayHintRefreshReason::ExcerptsRemoved(_)
4280 );
4281 let (invalidate_cache, required_languages) = match reason {
4282 InlayHintRefreshReason::Toggle(enabled) => {
4283 self.inlay_hint_cache.enabled = enabled;
4284 if enabled {
4285 (InvalidationStrategy::RefreshRequested, None)
4286 } else {
4287 self.inlay_hint_cache.clear();
4288 self.splice_inlays(
4289 self.visible_inlay_hints(cx)
4290 .iter()
4291 .map(|inlay| inlay.id)
4292 .collect(),
4293 Vec::new(),
4294 cx,
4295 );
4296 return;
4297 }
4298 }
4299 InlayHintRefreshReason::SettingsChange(new_settings) => {
4300 match self.inlay_hint_cache.update_settings(
4301 &self.buffer,
4302 new_settings,
4303 self.visible_inlay_hints(cx),
4304 cx,
4305 ) {
4306 ControlFlow::Break(Some(InlaySplice {
4307 to_remove,
4308 to_insert,
4309 })) => {
4310 self.splice_inlays(to_remove, to_insert, cx);
4311 return;
4312 }
4313 ControlFlow::Break(None) => return,
4314 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4315 }
4316 }
4317 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4318 if let Some(InlaySplice {
4319 to_remove,
4320 to_insert,
4321 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4322 {
4323 self.splice_inlays(to_remove, to_insert, cx);
4324 }
4325 return;
4326 }
4327 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4328 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4329 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4330 }
4331 InlayHintRefreshReason::RefreshRequested => {
4332 (InvalidationStrategy::RefreshRequested, None)
4333 }
4334 };
4335
4336 if let Some(InlaySplice {
4337 to_remove,
4338 to_insert,
4339 }) = self.inlay_hint_cache.spawn_hint_refresh(
4340 reason_description,
4341 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4342 invalidate_cache,
4343 ignore_debounce,
4344 cx,
4345 ) {
4346 self.splice_inlays(to_remove, to_insert, cx);
4347 }
4348 }
4349
4350 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4351 self.display_map
4352 .read(cx)
4353 .current_inlays()
4354 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4355 .cloned()
4356 .collect()
4357 }
4358
4359 pub fn excerpts_for_inlay_hints_query(
4360 &self,
4361 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4362 cx: &mut ViewContext<Editor>,
4363 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4364 let Some(project) = self.project.as_ref() else {
4365 return HashMap::default();
4366 };
4367 let project = project.read(cx);
4368 let multi_buffer = self.buffer().read(cx);
4369 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4370 let multi_buffer_visible_start = self
4371 .scroll_manager
4372 .anchor()
4373 .anchor
4374 .to_point(&multi_buffer_snapshot);
4375 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4376 multi_buffer_visible_start
4377 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4378 Bias::Left,
4379 );
4380 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4381 multi_buffer
4382 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4383 .into_iter()
4384 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4385 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4386 let buffer = buffer_handle.read(cx);
4387 let buffer_file = project::File::from_dyn(buffer.file())?;
4388 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4389 let worktree_entry = buffer_worktree
4390 .read(cx)
4391 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4392 if worktree_entry.is_ignored {
4393 return None;
4394 }
4395
4396 let language = buffer.language()?;
4397 if let Some(restrict_to_languages) = restrict_to_languages {
4398 if !restrict_to_languages.contains(language) {
4399 return None;
4400 }
4401 }
4402 Some((
4403 excerpt_id,
4404 (
4405 buffer_handle,
4406 buffer.version().clone(),
4407 excerpt_visible_range,
4408 ),
4409 ))
4410 })
4411 .collect()
4412 }
4413
4414 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4415 TextLayoutDetails {
4416 text_system: cx.text_system().clone(),
4417 editor_style: self.style.clone().unwrap(),
4418 rem_size: cx.rem_size(),
4419 scroll_anchor: self.scroll_manager.anchor(),
4420 visible_rows: self.visible_line_count(),
4421 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4422 }
4423 }
4424
4425 fn splice_inlays(
4426 &self,
4427 to_remove: Vec<InlayId>,
4428 to_insert: Vec<Inlay>,
4429 cx: &mut ViewContext<Self>,
4430 ) {
4431 self.display_map.update(cx, |display_map, cx| {
4432 display_map.splice_inlays(to_remove, to_insert, cx);
4433 });
4434 cx.notify();
4435 }
4436
4437 fn trigger_on_type_formatting(
4438 &self,
4439 input: String,
4440 cx: &mut ViewContext<Self>,
4441 ) -> Option<Task<Result<()>>> {
4442 if input.len() != 1 {
4443 return None;
4444 }
4445
4446 let project = self.project.as_ref()?;
4447 let position = self.selections.newest_anchor().head();
4448 let (buffer, buffer_position) = self
4449 .buffer
4450 .read(cx)
4451 .text_anchor_for_position(position, cx)?;
4452
4453 let settings = language_settings::language_settings(
4454 buffer
4455 .read(cx)
4456 .language_at(buffer_position)
4457 .map(|l| l.name()),
4458 buffer.read(cx).file(),
4459 cx,
4460 );
4461 if !settings.use_on_type_format {
4462 return None;
4463 }
4464
4465 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4466 // hence we do LSP request & edit on host side only — add formats to host's history.
4467 let push_to_lsp_host_history = true;
4468 // If this is not the host, append its history with new edits.
4469 let push_to_client_history = project.read(cx).is_via_collab();
4470
4471 let on_type_formatting = project.update(cx, |project, cx| {
4472 project.on_type_format(
4473 buffer.clone(),
4474 buffer_position,
4475 input,
4476 push_to_lsp_host_history,
4477 cx,
4478 )
4479 });
4480 Some(cx.spawn(|editor, mut cx| async move {
4481 if let Some(transaction) = on_type_formatting.await? {
4482 if push_to_client_history {
4483 buffer
4484 .update(&mut cx, |buffer, _| {
4485 buffer.push_transaction(transaction, Instant::now());
4486 })
4487 .ok();
4488 }
4489 editor.update(&mut cx, |editor, cx| {
4490 editor.refresh_document_highlights(cx);
4491 })?;
4492 }
4493 Ok(())
4494 }))
4495 }
4496
4497 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4498 if self.pending_rename.is_some() {
4499 return;
4500 }
4501
4502 let Some(provider) = self.completion_provider.as_ref() else {
4503 return;
4504 };
4505
4506 if !self.snippet_stack.is_empty() && self.context_menu.read().as_ref().is_some() {
4507 return;
4508 }
4509
4510 let position = self.selections.newest_anchor().head();
4511 let (buffer, buffer_position) =
4512 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4513 output
4514 } else {
4515 return;
4516 };
4517
4518 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4519 let is_followup_invoke = {
4520 let context_menu_state = self.context_menu.read();
4521 matches!(
4522 context_menu_state.deref(),
4523 Some(ContextMenu::Completions(_))
4524 )
4525 };
4526 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4527 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4528 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4529 CompletionTriggerKind::TRIGGER_CHARACTER
4530 }
4531
4532 _ => CompletionTriggerKind::INVOKED,
4533 };
4534 let completion_context = CompletionContext {
4535 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4536 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4537 Some(String::from(trigger))
4538 } else {
4539 None
4540 }
4541 }),
4542 trigger_kind,
4543 };
4544 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4545 let sort_completions = provider.sort_completions();
4546
4547 let id = post_inc(&mut self.next_completion_id);
4548 let task = cx.spawn(|this, mut cx| {
4549 async move {
4550 this.update(&mut cx, |this, _| {
4551 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4552 })?;
4553 let completions = completions.await.log_err();
4554 let menu = if let Some(completions) = completions {
4555 let mut menu = CompletionsMenu::new(
4556 id,
4557 sort_completions,
4558 position,
4559 buffer.clone(),
4560 completions.into(),
4561 );
4562 menu.filter(query.as_deref(), cx.background_executor().clone())
4563 .await;
4564
4565 if menu.matches.is_empty() {
4566 None
4567 } else {
4568 this.update(&mut cx, |editor, cx| {
4569 let completions = menu.completions.clone();
4570 let matches = menu.matches.clone();
4571
4572 let delay_ms = EditorSettings::get_global(cx)
4573 .completion_documentation_secondary_query_debounce;
4574 let delay = Duration::from_millis(delay_ms);
4575 editor
4576 .completion_documentation_pre_resolve_debounce
4577 .fire_new(delay, cx, |editor, cx| {
4578 CompletionsMenu::pre_resolve_completion_documentation(
4579 buffer,
4580 completions,
4581 matches,
4582 editor,
4583 cx,
4584 )
4585 });
4586 })
4587 .ok();
4588 Some(menu)
4589 }
4590 } else {
4591 None
4592 };
4593
4594 this.update(&mut cx, |this, cx| {
4595 let mut context_menu = this.context_menu.write();
4596 match context_menu.as_ref() {
4597 None => {}
4598
4599 Some(ContextMenu::Completions(prev_menu)) => {
4600 if prev_menu.id > id {
4601 return;
4602 }
4603 }
4604
4605 _ => return,
4606 }
4607
4608 if this.focus_handle.is_focused(cx) && menu.is_some() {
4609 let menu = menu.unwrap();
4610 *context_menu = Some(ContextMenu::Completions(menu));
4611 drop(context_menu);
4612 this.discard_inline_completion(false, cx);
4613 cx.notify();
4614 } else if this.completion_tasks.len() <= 1 {
4615 // If there are no more completion tasks and the last menu was
4616 // empty, we should hide it. If it was already hidden, we should
4617 // also show the copilot completion when available.
4618 drop(context_menu);
4619 if this.hide_context_menu(cx).is_none() {
4620 this.update_visible_inline_completion(cx);
4621 }
4622 }
4623 })?;
4624
4625 Ok::<_, anyhow::Error>(())
4626 }
4627 .log_err()
4628 });
4629
4630 self.completion_tasks.push((id, task));
4631 }
4632
4633 pub fn confirm_completion(
4634 &mut self,
4635 action: &ConfirmCompletion,
4636 cx: &mut ViewContext<Self>,
4637 ) -> Option<Task<Result<()>>> {
4638 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4639 }
4640
4641 pub fn compose_completion(
4642 &mut self,
4643 action: &ComposeCompletion,
4644 cx: &mut ViewContext<Self>,
4645 ) -> Option<Task<Result<()>>> {
4646 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4647 }
4648
4649 fn do_completion(
4650 &mut self,
4651 item_ix: Option<usize>,
4652 intent: CompletionIntent,
4653 cx: &mut ViewContext<Editor>,
4654 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4655 use language::ToOffset as _;
4656
4657 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4658 menu
4659 } else {
4660 return None;
4661 };
4662
4663 let mat = completions_menu
4664 .matches
4665 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4666 let buffer_handle = completions_menu.buffer;
4667 let completions = completions_menu.completions.read();
4668 let completion = completions.get(mat.candidate_id)?;
4669 cx.stop_propagation();
4670
4671 let snippet;
4672 let text;
4673
4674 if completion.is_snippet() {
4675 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4676 text = snippet.as_ref().unwrap().text.clone();
4677 } else {
4678 snippet = None;
4679 text = completion.new_text.clone();
4680 };
4681 let selections = self.selections.all::<usize>(cx);
4682 let buffer = buffer_handle.read(cx);
4683 let old_range = completion.old_range.to_offset(buffer);
4684 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4685
4686 let newest_selection = self.selections.newest_anchor();
4687 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4688 return None;
4689 }
4690
4691 let lookbehind = newest_selection
4692 .start
4693 .text_anchor
4694 .to_offset(buffer)
4695 .saturating_sub(old_range.start);
4696 let lookahead = old_range
4697 .end
4698 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4699 let mut common_prefix_len = old_text
4700 .bytes()
4701 .zip(text.bytes())
4702 .take_while(|(a, b)| a == b)
4703 .count();
4704
4705 let snapshot = self.buffer.read(cx).snapshot(cx);
4706 let mut range_to_replace: Option<Range<isize>> = None;
4707 let mut ranges = Vec::new();
4708 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4709 for selection in &selections {
4710 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4711 let start = selection.start.saturating_sub(lookbehind);
4712 let end = selection.end + lookahead;
4713 if selection.id == newest_selection.id {
4714 range_to_replace = Some(
4715 ((start + common_prefix_len) as isize - selection.start as isize)
4716 ..(end as isize - selection.start as isize),
4717 );
4718 }
4719 ranges.push(start + common_prefix_len..end);
4720 } else {
4721 common_prefix_len = 0;
4722 ranges.clear();
4723 ranges.extend(selections.iter().map(|s| {
4724 if s.id == newest_selection.id {
4725 range_to_replace = Some(
4726 old_range.start.to_offset_utf16(&snapshot).0 as isize
4727 - selection.start as isize
4728 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4729 - selection.start as isize,
4730 );
4731 old_range.clone()
4732 } else {
4733 s.start..s.end
4734 }
4735 }));
4736 break;
4737 }
4738 if !self.linked_edit_ranges.is_empty() {
4739 let start_anchor = snapshot.anchor_before(selection.head());
4740 let end_anchor = snapshot.anchor_after(selection.tail());
4741 if let Some(ranges) = self
4742 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4743 {
4744 for (buffer, edits) in ranges {
4745 linked_edits.entry(buffer.clone()).or_default().extend(
4746 edits
4747 .into_iter()
4748 .map(|range| (range, text[common_prefix_len..].to_owned())),
4749 );
4750 }
4751 }
4752 }
4753 }
4754 let text = &text[common_prefix_len..];
4755
4756 cx.emit(EditorEvent::InputHandled {
4757 utf16_range_to_replace: range_to_replace,
4758 text: text.into(),
4759 });
4760
4761 self.transact(cx, |this, cx| {
4762 if let Some(mut snippet) = snippet {
4763 snippet.text = text.to_string();
4764 for tabstop in snippet
4765 .tabstops
4766 .iter_mut()
4767 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4768 {
4769 tabstop.start -= common_prefix_len as isize;
4770 tabstop.end -= common_prefix_len as isize;
4771 }
4772
4773 this.insert_snippet(&ranges, snippet, cx).log_err();
4774 } else {
4775 this.buffer.update(cx, |buffer, cx| {
4776 buffer.edit(
4777 ranges.iter().map(|range| (range.clone(), text)),
4778 this.autoindent_mode.clone(),
4779 cx,
4780 );
4781 });
4782 }
4783 for (buffer, edits) in linked_edits {
4784 buffer.update(cx, |buffer, cx| {
4785 let snapshot = buffer.snapshot();
4786 let edits = edits
4787 .into_iter()
4788 .map(|(range, text)| {
4789 use text::ToPoint as TP;
4790 let end_point = TP::to_point(&range.end, &snapshot);
4791 let start_point = TP::to_point(&range.start, &snapshot);
4792 (start_point..end_point, text)
4793 })
4794 .sorted_by_key(|(range, _)| range.start)
4795 .collect::<Vec<_>>();
4796 buffer.edit(edits, None, cx);
4797 })
4798 }
4799
4800 this.refresh_inline_completion(true, false, cx);
4801 });
4802
4803 let show_new_completions_on_confirm = completion
4804 .confirm
4805 .as_ref()
4806 .map_or(false, |confirm| confirm(intent, cx));
4807 if show_new_completions_on_confirm {
4808 self.show_completions(&ShowCompletions { trigger: None }, cx);
4809 }
4810
4811 let provider = self.completion_provider.as_ref()?;
4812 let apply_edits = provider.apply_additional_edits_for_completion(
4813 buffer_handle,
4814 completion.clone(),
4815 true,
4816 cx,
4817 );
4818
4819 let editor_settings = EditorSettings::get_global(cx);
4820 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4821 // After the code completion is finished, users often want to know what signatures are needed.
4822 // so we should automatically call signature_help
4823 self.show_signature_help(&ShowSignatureHelp, cx);
4824 }
4825
4826 Some(cx.foreground_executor().spawn(async move {
4827 apply_edits.await?;
4828 Ok(())
4829 }))
4830 }
4831
4832 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4833 let mut context_menu = self.context_menu.write();
4834 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4835 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4836 // Toggle if we're selecting the same one
4837 *context_menu = None;
4838 cx.notify();
4839 return;
4840 } else {
4841 // Otherwise, clear it and start a new one
4842 *context_menu = None;
4843 cx.notify();
4844 }
4845 }
4846 drop(context_menu);
4847 let snapshot = self.snapshot(cx);
4848 let deployed_from_indicator = action.deployed_from_indicator;
4849 let mut task = self.code_actions_task.take();
4850 let action = action.clone();
4851 cx.spawn(|editor, mut cx| async move {
4852 while let Some(prev_task) = task {
4853 prev_task.await.log_err();
4854 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4855 }
4856
4857 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4858 if editor.focus_handle.is_focused(cx) {
4859 let multibuffer_point = action
4860 .deployed_from_indicator
4861 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4862 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4863 let (buffer, buffer_row) = snapshot
4864 .buffer_snapshot
4865 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4866 .and_then(|(buffer_snapshot, range)| {
4867 editor
4868 .buffer
4869 .read(cx)
4870 .buffer(buffer_snapshot.remote_id())
4871 .map(|buffer| (buffer, range.start.row))
4872 })?;
4873 let (_, code_actions) = editor
4874 .available_code_actions
4875 .clone()
4876 .and_then(|(location, code_actions)| {
4877 let snapshot = location.buffer.read(cx).snapshot();
4878 let point_range = location.range.to_point(&snapshot);
4879 let point_range = point_range.start.row..=point_range.end.row;
4880 if point_range.contains(&buffer_row) {
4881 Some((location, code_actions))
4882 } else {
4883 None
4884 }
4885 })
4886 .unzip();
4887 let buffer_id = buffer.read(cx).remote_id();
4888 let tasks = editor
4889 .tasks
4890 .get(&(buffer_id, buffer_row))
4891 .map(|t| Arc::new(t.to_owned()));
4892 if tasks.is_none() && code_actions.is_none() {
4893 return None;
4894 }
4895
4896 editor.completion_tasks.clear();
4897 editor.discard_inline_completion(false, cx);
4898 let task_context =
4899 tasks
4900 .as_ref()
4901 .zip(editor.project.clone())
4902 .map(|(tasks, project)| {
4903 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4904 });
4905
4906 Some(cx.spawn(|editor, mut cx| async move {
4907 let task_context = match task_context {
4908 Some(task_context) => task_context.await,
4909 None => None,
4910 };
4911 let resolved_tasks =
4912 tasks.zip(task_context).map(|(tasks, task_context)| {
4913 Arc::new(ResolvedTasks {
4914 templates: tasks.resolve(&task_context).collect(),
4915 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4916 multibuffer_point.row,
4917 tasks.column,
4918 )),
4919 })
4920 });
4921 let spawn_straight_away = resolved_tasks
4922 .as_ref()
4923 .map_or(false, |tasks| tasks.templates.len() == 1)
4924 && code_actions
4925 .as_ref()
4926 .map_or(true, |actions| actions.is_empty());
4927 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4928 *editor.context_menu.write() =
4929 Some(ContextMenu::CodeActions(CodeActionsMenu {
4930 buffer,
4931 actions: CodeActionContents {
4932 tasks: resolved_tasks,
4933 actions: code_actions,
4934 },
4935 selected_item: Default::default(),
4936 scroll_handle: UniformListScrollHandle::default(),
4937 deployed_from_indicator,
4938 }));
4939 if spawn_straight_away {
4940 if let Some(task) = editor.confirm_code_action(
4941 &ConfirmCodeAction { item_ix: Some(0) },
4942 cx,
4943 ) {
4944 cx.notify();
4945 return task;
4946 }
4947 }
4948 cx.notify();
4949 Task::ready(Ok(()))
4950 }) {
4951 task.await
4952 } else {
4953 Ok(())
4954 }
4955 }))
4956 } else {
4957 Some(Task::ready(Ok(())))
4958 }
4959 })?;
4960 if let Some(task) = spawned_test_task {
4961 task.await?;
4962 }
4963
4964 Ok::<_, anyhow::Error>(())
4965 })
4966 .detach_and_log_err(cx);
4967 }
4968
4969 pub fn confirm_code_action(
4970 &mut self,
4971 action: &ConfirmCodeAction,
4972 cx: &mut ViewContext<Self>,
4973 ) -> Option<Task<Result<()>>> {
4974 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4975 menu
4976 } else {
4977 return None;
4978 };
4979 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4980 let action = actions_menu.actions.get(action_ix)?;
4981 let title = action.label();
4982 let buffer = actions_menu.buffer;
4983 let workspace = self.workspace()?;
4984
4985 match action {
4986 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4987 workspace.update(cx, |workspace, cx| {
4988 workspace::tasks::schedule_resolved_task(
4989 workspace,
4990 task_source_kind,
4991 resolved_task,
4992 false,
4993 cx,
4994 );
4995
4996 Some(Task::ready(Ok(())))
4997 })
4998 }
4999 CodeActionsItem::CodeAction {
5000 excerpt_id,
5001 action,
5002 provider,
5003 } => {
5004 let apply_code_action =
5005 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
5006 let workspace = workspace.downgrade();
5007 Some(cx.spawn(|editor, cx| async move {
5008 let project_transaction = apply_code_action.await?;
5009 Self::open_project_transaction(
5010 &editor,
5011 workspace,
5012 project_transaction,
5013 title,
5014 cx,
5015 )
5016 .await
5017 }))
5018 }
5019 }
5020 }
5021
5022 pub async fn open_project_transaction(
5023 this: &WeakView<Editor>,
5024 workspace: WeakView<Workspace>,
5025 transaction: ProjectTransaction,
5026 title: String,
5027 mut cx: AsyncWindowContext,
5028 ) -> Result<()> {
5029 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
5030 cx.update(|cx| {
5031 entries.sort_unstable_by_key(|(buffer, _)| {
5032 buffer.read(cx).file().map(|f| f.path().clone())
5033 });
5034 })?;
5035
5036 // If the project transaction's edits are all contained within this editor, then
5037 // avoid opening a new editor to display them.
5038
5039 if let Some((buffer, transaction)) = entries.first() {
5040 if entries.len() == 1 {
5041 let excerpt = this.update(&mut cx, |editor, cx| {
5042 editor
5043 .buffer()
5044 .read(cx)
5045 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
5046 })?;
5047 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
5048 if excerpted_buffer == *buffer {
5049 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
5050 let excerpt_range = excerpt_range.to_offset(buffer);
5051 buffer
5052 .edited_ranges_for_transaction::<usize>(transaction)
5053 .all(|range| {
5054 excerpt_range.start <= range.start
5055 && excerpt_range.end >= range.end
5056 })
5057 })?;
5058
5059 if all_edits_within_excerpt {
5060 return Ok(());
5061 }
5062 }
5063 }
5064 }
5065 } else {
5066 return Ok(());
5067 }
5068
5069 let mut ranges_to_highlight = Vec::new();
5070 let excerpt_buffer = cx.new_model(|cx| {
5071 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
5072 for (buffer_handle, transaction) in &entries {
5073 let buffer = buffer_handle.read(cx);
5074 ranges_to_highlight.extend(
5075 multibuffer.push_excerpts_with_context_lines(
5076 buffer_handle.clone(),
5077 buffer
5078 .edited_ranges_for_transaction::<usize>(transaction)
5079 .collect(),
5080 DEFAULT_MULTIBUFFER_CONTEXT,
5081 cx,
5082 ),
5083 );
5084 }
5085 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
5086 multibuffer
5087 })?;
5088
5089 workspace.update(&mut cx, |workspace, cx| {
5090 let project = workspace.project().clone();
5091 let editor =
5092 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
5093 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
5094 editor.update(cx, |editor, cx| {
5095 editor.highlight_background::<Self>(
5096 &ranges_to_highlight,
5097 |theme| theme.editor_highlighted_line_background,
5098 cx,
5099 );
5100 });
5101 })?;
5102
5103 Ok(())
5104 }
5105
5106 pub fn clear_code_action_providers(&mut self) {
5107 self.code_action_providers.clear();
5108 self.available_code_actions.take();
5109 }
5110
5111 pub fn push_code_action_provider(
5112 &mut self,
5113 provider: Arc<dyn CodeActionProvider>,
5114 cx: &mut ViewContext<Self>,
5115 ) {
5116 self.code_action_providers.push(provider);
5117 self.refresh_code_actions(cx);
5118 }
5119
5120 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5121 let buffer = self.buffer.read(cx);
5122 let newest_selection = self.selections.newest_anchor().clone();
5123 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
5124 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
5125 if start_buffer != end_buffer {
5126 return None;
5127 }
5128
5129 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
5130 cx.background_executor()
5131 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
5132 .await;
5133
5134 let (providers, tasks) = this.update(&mut cx, |this, cx| {
5135 let providers = this.code_action_providers.clone();
5136 let tasks = this
5137 .code_action_providers
5138 .iter()
5139 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5140 .collect::<Vec<_>>();
5141 (providers, tasks)
5142 })?;
5143
5144 let mut actions = Vec::new();
5145 for (provider, provider_actions) in
5146 providers.into_iter().zip(future::join_all(tasks).await)
5147 {
5148 if let Some(provider_actions) = provider_actions.log_err() {
5149 actions.extend(provider_actions.into_iter().map(|action| {
5150 AvailableCodeAction {
5151 excerpt_id: newest_selection.start.excerpt_id,
5152 action,
5153 provider: provider.clone(),
5154 }
5155 }));
5156 }
5157 }
5158
5159 this.update(&mut cx, |this, cx| {
5160 this.available_code_actions = if actions.is_empty() {
5161 None
5162 } else {
5163 Some((
5164 Location {
5165 buffer: start_buffer,
5166 range: start..end,
5167 },
5168 actions.into(),
5169 ))
5170 };
5171 cx.notify();
5172 })
5173 }));
5174 None
5175 }
5176
5177 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5178 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5179 self.show_git_blame_inline = false;
5180
5181 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5182 cx.background_executor().timer(delay).await;
5183
5184 this.update(&mut cx, |this, cx| {
5185 this.show_git_blame_inline = true;
5186 cx.notify();
5187 })
5188 .log_err();
5189 }));
5190 }
5191 }
5192
5193 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5194 if self.pending_rename.is_some() {
5195 return None;
5196 }
5197
5198 let provider = self.semantics_provider.clone()?;
5199 let buffer = self.buffer.read(cx);
5200 let newest_selection = self.selections.newest_anchor().clone();
5201 let cursor_position = newest_selection.head();
5202 let (cursor_buffer, cursor_buffer_position) =
5203 buffer.text_anchor_for_position(cursor_position, cx)?;
5204 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5205 if cursor_buffer != tail_buffer {
5206 return None;
5207 }
5208
5209 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5210 cx.background_executor()
5211 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5212 .await;
5213
5214 let highlights = if let Some(highlights) = cx
5215 .update(|cx| {
5216 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5217 })
5218 .ok()
5219 .flatten()
5220 {
5221 highlights.await.log_err()
5222 } else {
5223 None
5224 };
5225
5226 if let Some(highlights) = highlights {
5227 this.update(&mut cx, |this, cx| {
5228 if this.pending_rename.is_some() {
5229 return;
5230 }
5231
5232 let buffer_id = cursor_position.buffer_id;
5233 let buffer = this.buffer.read(cx);
5234 if !buffer
5235 .text_anchor_for_position(cursor_position, cx)
5236 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5237 {
5238 return;
5239 }
5240
5241 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5242 let mut write_ranges = Vec::new();
5243 let mut read_ranges = Vec::new();
5244 for highlight in highlights {
5245 for (excerpt_id, excerpt_range) in
5246 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5247 {
5248 let start = highlight
5249 .range
5250 .start
5251 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5252 let end = highlight
5253 .range
5254 .end
5255 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5256 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5257 continue;
5258 }
5259
5260 let range = Anchor {
5261 buffer_id,
5262 excerpt_id,
5263 text_anchor: start,
5264 }..Anchor {
5265 buffer_id,
5266 excerpt_id,
5267 text_anchor: end,
5268 };
5269 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5270 write_ranges.push(range);
5271 } else {
5272 read_ranges.push(range);
5273 }
5274 }
5275 }
5276
5277 this.highlight_background::<DocumentHighlightRead>(
5278 &read_ranges,
5279 |theme| theme.editor_document_highlight_read_background,
5280 cx,
5281 );
5282 this.highlight_background::<DocumentHighlightWrite>(
5283 &write_ranges,
5284 |theme| theme.editor_document_highlight_write_background,
5285 cx,
5286 );
5287 cx.notify();
5288 })
5289 .log_err();
5290 }
5291 }));
5292 None
5293 }
5294
5295 pub fn refresh_inline_completion(
5296 &mut self,
5297 debounce: bool,
5298 user_requested: bool,
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
5306 if !user_requested
5307 && (!self.enable_inline_completions
5308 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5309 {
5310 self.discard_inline_completion(false, cx);
5311 return None;
5312 }
5313
5314 self.update_visible_inline_completion(cx);
5315 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5316 Some(())
5317 }
5318
5319 fn cycle_inline_completion(
5320 &mut self,
5321 direction: Direction,
5322 cx: &mut ViewContext<Self>,
5323 ) -> Option<()> {
5324 let provider = self.inline_completion_provider()?;
5325 let cursor = self.selections.newest_anchor().head();
5326 let (buffer, cursor_buffer_position) =
5327 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5328 if !self.enable_inline_completions
5329 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5330 {
5331 return None;
5332 }
5333
5334 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5335 self.update_visible_inline_completion(cx);
5336
5337 Some(())
5338 }
5339
5340 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5341 if !self.has_active_inline_completion(cx) {
5342 self.refresh_inline_completion(false, true, cx);
5343 return;
5344 }
5345
5346 self.update_visible_inline_completion(cx);
5347 }
5348
5349 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5350 self.show_cursor_names(cx);
5351 }
5352
5353 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5354 self.show_cursor_names = true;
5355 cx.notify();
5356 cx.spawn(|this, mut cx| async move {
5357 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5358 this.update(&mut cx, |this, cx| {
5359 this.show_cursor_names = false;
5360 cx.notify()
5361 })
5362 .ok()
5363 })
5364 .detach();
5365 }
5366
5367 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5368 if self.has_active_inline_completion(cx) {
5369 self.cycle_inline_completion(Direction::Next, cx);
5370 } else {
5371 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5372 if is_copilot_disabled {
5373 cx.propagate();
5374 }
5375 }
5376 }
5377
5378 pub fn previous_inline_completion(
5379 &mut self,
5380 _: &PreviousInlineCompletion,
5381 cx: &mut ViewContext<Self>,
5382 ) {
5383 if self.has_active_inline_completion(cx) {
5384 self.cycle_inline_completion(Direction::Prev, cx);
5385 } else {
5386 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5387 if is_copilot_disabled {
5388 cx.propagate();
5389 }
5390 }
5391 }
5392
5393 pub fn accept_inline_completion(
5394 &mut self,
5395 _: &AcceptInlineCompletion,
5396 cx: &mut ViewContext<Self>,
5397 ) {
5398 let Some(completion) = self.take_active_inline_completion(cx) else {
5399 return;
5400 };
5401 if let Some(provider) = self.inline_completion_provider() {
5402 provider.accept(cx);
5403 }
5404
5405 cx.emit(EditorEvent::InputHandled {
5406 utf16_range_to_replace: None,
5407 text: completion.text.to_string().into(),
5408 });
5409
5410 if let Some(range) = completion.delete_range {
5411 self.change_selections(None, cx, |s| s.select_ranges([range]))
5412 }
5413 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5414 self.refresh_inline_completion(true, true, cx);
5415 cx.notify();
5416 }
5417
5418 pub fn accept_partial_inline_completion(
5419 &mut self,
5420 _: &AcceptPartialInlineCompletion,
5421 cx: &mut ViewContext<Self>,
5422 ) {
5423 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5424 if let Some(completion) = self.take_active_inline_completion(cx) {
5425 let mut partial_completion = completion
5426 .text
5427 .chars()
5428 .by_ref()
5429 .take_while(|c| c.is_alphabetic())
5430 .collect::<String>();
5431 if partial_completion.is_empty() {
5432 partial_completion = completion
5433 .text
5434 .chars()
5435 .by_ref()
5436 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5437 .collect::<String>();
5438 }
5439
5440 cx.emit(EditorEvent::InputHandled {
5441 utf16_range_to_replace: None,
5442 text: partial_completion.clone().into(),
5443 });
5444
5445 if let Some(range) = completion.delete_range {
5446 self.change_selections(None, cx, |s| s.select_ranges([range]))
5447 }
5448 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5449
5450 self.refresh_inline_completion(true, true, cx);
5451 cx.notify();
5452 }
5453 }
5454 }
5455
5456 fn discard_inline_completion(
5457 &mut self,
5458 should_report_inline_completion_event: bool,
5459 cx: &mut ViewContext<Self>,
5460 ) -> bool {
5461 if let Some(provider) = self.inline_completion_provider() {
5462 provider.discard(should_report_inline_completion_event, cx);
5463 }
5464
5465 self.take_active_inline_completion(cx).is_some()
5466 }
5467
5468 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5469 if let Some(completion) = self.active_inline_completion.as_ref() {
5470 let buffer = self.buffer.read(cx).read(cx);
5471 completion.position.is_valid(&buffer)
5472 } else {
5473 false
5474 }
5475 }
5476
5477 fn take_active_inline_completion(
5478 &mut self,
5479 cx: &mut ViewContext<Self>,
5480 ) -> Option<CompletionState> {
5481 let completion = self.active_inline_completion.take()?;
5482 let render_inlay_ids = completion.render_inlay_ids.clone();
5483 self.display_map.update(cx, |map, cx| {
5484 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5485 });
5486 let buffer = self.buffer.read(cx).read(cx);
5487
5488 if completion.position.is_valid(&buffer) {
5489 Some(completion)
5490 } else {
5491 None
5492 }
5493 }
5494
5495 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5496 let selection = self.selections.newest_anchor();
5497 let cursor = selection.head();
5498
5499 let excerpt_id = cursor.excerpt_id;
5500
5501 if self.context_menu.read().is_none()
5502 && self.completion_tasks.is_empty()
5503 && selection.start == selection.end
5504 {
5505 if let Some(provider) = self.inline_completion_provider() {
5506 if let Some((buffer, cursor_buffer_position)) =
5507 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5508 {
5509 if let Some(proposal) =
5510 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5511 {
5512 let mut to_remove = Vec::new();
5513 if let Some(completion) = self.active_inline_completion.take() {
5514 to_remove.extend(completion.render_inlay_ids.iter());
5515 }
5516
5517 let to_add = proposal
5518 .inlays
5519 .iter()
5520 .filter_map(|inlay| {
5521 let snapshot = self.buffer.read(cx).snapshot(cx);
5522 let id = post_inc(&mut self.next_inlay_id);
5523 match inlay {
5524 InlayProposal::Hint(position, hint) => {
5525 let position =
5526 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5527 Some(Inlay::hint(id, position, hint))
5528 }
5529 InlayProposal::Suggestion(position, text) => {
5530 let position =
5531 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5532 Some(Inlay::suggestion(id, position, text.clone()))
5533 }
5534 }
5535 })
5536 .collect_vec();
5537
5538 self.active_inline_completion = Some(CompletionState {
5539 position: cursor,
5540 text: proposal.text,
5541 delete_range: proposal.delete_range.and_then(|range| {
5542 let snapshot = self.buffer.read(cx).snapshot(cx);
5543 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5544 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5545 Some(start?..end?)
5546 }),
5547 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5548 });
5549
5550 self.display_map
5551 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5552
5553 cx.notify();
5554 return;
5555 }
5556 }
5557 }
5558 }
5559
5560 self.discard_inline_completion(false, cx);
5561 }
5562
5563 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5564 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5565 }
5566
5567 fn render_code_actions_indicator(
5568 &self,
5569 _style: &EditorStyle,
5570 row: DisplayRow,
5571 is_active: bool,
5572 cx: &mut ViewContext<Self>,
5573 ) -> Option<IconButton> {
5574 if self.available_code_actions.is_some() {
5575 Some(
5576 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5577 .shape(ui::IconButtonShape::Square)
5578 .icon_size(IconSize::XSmall)
5579 .icon_color(Color::Muted)
5580 .selected(is_active)
5581 .tooltip({
5582 let focus_handle = self.focus_handle.clone();
5583 move |cx| {
5584 Tooltip::for_action_in(
5585 "Toggle Code Actions",
5586 &ToggleCodeActions {
5587 deployed_from_indicator: None,
5588 },
5589 &focus_handle,
5590 cx,
5591 )
5592 }
5593 })
5594 .on_click(cx.listener(move |editor, _e, cx| {
5595 editor.focus(cx);
5596 editor.toggle_code_actions(
5597 &ToggleCodeActions {
5598 deployed_from_indicator: Some(row),
5599 },
5600 cx,
5601 );
5602 })),
5603 )
5604 } else {
5605 None
5606 }
5607 }
5608
5609 fn clear_tasks(&mut self) {
5610 self.tasks.clear()
5611 }
5612
5613 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5614 if self.tasks.insert(key, value).is_some() {
5615 // This case should hopefully be rare, but just in case...
5616 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5617 }
5618 }
5619
5620 fn build_tasks_context(
5621 project: &Model<Project>,
5622 buffer: &Model<Buffer>,
5623 buffer_row: u32,
5624 tasks: &Arc<RunnableTasks>,
5625 cx: &mut ViewContext<Self>,
5626 ) -> Task<Option<task::TaskContext>> {
5627 let position = Point::new(buffer_row, tasks.column);
5628 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5629 let location = Location {
5630 buffer: buffer.clone(),
5631 range: range_start..range_start,
5632 };
5633 // Fill in the environmental variables from the tree-sitter captures
5634 let mut captured_task_variables = TaskVariables::default();
5635 for (capture_name, value) in tasks.extra_variables.clone() {
5636 captured_task_variables.insert(
5637 task::VariableName::Custom(capture_name.into()),
5638 value.clone(),
5639 );
5640 }
5641 project.update(cx, |project, cx| {
5642 project.task_store().update(cx, |task_store, cx| {
5643 task_store.task_context_for_location(captured_task_variables, location, cx)
5644 })
5645 })
5646 }
5647
5648 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5649 let Some((workspace, _)) = self.workspace.clone() else {
5650 return;
5651 };
5652 let Some(project) = self.project.clone() else {
5653 return;
5654 };
5655
5656 // Try to find a closest, enclosing node using tree-sitter that has a
5657 // task
5658 let Some((buffer, buffer_row, tasks)) = self
5659 .find_enclosing_node_task(cx)
5660 // Or find the task that's closest in row-distance.
5661 .or_else(|| self.find_closest_task(cx))
5662 else {
5663 return;
5664 };
5665
5666 let reveal_strategy = action.reveal;
5667 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5668 cx.spawn(|_, mut cx| async move {
5669 let context = task_context.await?;
5670 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5671
5672 let resolved = resolved_task.resolved.as_mut()?;
5673 resolved.reveal = reveal_strategy;
5674
5675 workspace
5676 .update(&mut cx, |workspace, cx| {
5677 workspace::tasks::schedule_resolved_task(
5678 workspace,
5679 task_source_kind,
5680 resolved_task,
5681 false,
5682 cx,
5683 );
5684 })
5685 .ok()
5686 })
5687 .detach();
5688 }
5689
5690 fn find_closest_task(
5691 &mut self,
5692 cx: &mut ViewContext<Self>,
5693 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5694 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5695
5696 let ((buffer_id, row), tasks) = self
5697 .tasks
5698 .iter()
5699 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5700
5701 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5702 let tasks = Arc::new(tasks.to_owned());
5703 Some((buffer, *row, tasks))
5704 }
5705
5706 fn find_enclosing_node_task(
5707 &mut self,
5708 cx: &mut ViewContext<Self>,
5709 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5710 let snapshot = self.buffer.read(cx).snapshot(cx);
5711 let offset = self.selections.newest::<usize>(cx).head();
5712 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5713 let buffer_id = excerpt.buffer().remote_id();
5714
5715 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5716 let mut cursor = layer.node().walk();
5717
5718 while cursor.goto_first_child_for_byte(offset).is_some() {
5719 if cursor.node().end_byte() == offset {
5720 cursor.goto_next_sibling();
5721 }
5722 }
5723
5724 // Ascend to the smallest ancestor that contains the range and has a task.
5725 loop {
5726 let node = cursor.node();
5727 let node_range = node.byte_range();
5728 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5729
5730 // Check if this node contains our offset
5731 if node_range.start <= offset && node_range.end >= offset {
5732 // If it contains offset, check for task
5733 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5734 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5735 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5736 }
5737 }
5738
5739 if !cursor.goto_parent() {
5740 break;
5741 }
5742 }
5743 None
5744 }
5745
5746 fn render_run_indicator(
5747 &self,
5748 _style: &EditorStyle,
5749 is_active: bool,
5750 row: DisplayRow,
5751 cx: &mut ViewContext<Self>,
5752 ) -> IconButton {
5753 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5754 .shape(ui::IconButtonShape::Square)
5755 .icon_size(IconSize::XSmall)
5756 .icon_color(Color::Muted)
5757 .selected(is_active)
5758 .on_click(cx.listener(move |editor, _e, cx| {
5759 editor.focus(cx);
5760 editor.toggle_code_actions(
5761 &ToggleCodeActions {
5762 deployed_from_indicator: Some(row),
5763 },
5764 cx,
5765 );
5766 }))
5767 }
5768
5769 pub fn context_menu_visible(&self) -> bool {
5770 self.context_menu
5771 .read()
5772 .as_ref()
5773 .map_or(false, |menu| menu.visible())
5774 }
5775
5776 fn render_context_menu(
5777 &self,
5778 cursor_position: DisplayPoint,
5779 style: &EditorStyle,
5780 max_height: Pixels,
5781 cx: &mut ViewContext<Editor>,
5782 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5783 self.context_menu.read().as_ref().map(|menu| {
5784 menu.render(
5785 cursor_position,
5786 style,
5787 max_height,
5788 self.workspace.as_ref().map(|(w, _)| w.clone()),
5789 cx,
5790 )
5791 })
5792 }
5793
5794 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5795 cx.notify();
5796 self.completion_tasks.clear();
5797 let context_menu = self.context_menu.write().take();
5798 if context_menu.is_some() {
5799 self.update_visible_inline_completion(cx);
5800 }
5801 context_menu
5802 }
5803
5804 fn show_snippet_choices(
5805 &mut self,
5806 choices: &Vec<String>,
5807 selection: Range<Anchor>,
5808 cx: &mut ViewContext<Self>,
5809 ) {
5810 if selection.start.buffer_id.is_none() {
5811 return;
5812 }
5813 let buffer_id = selection.start.buffer_id.unwrap();
5814 let buffer = self.buffer().read(cx).buffer(buffer_id);
5815 let id = post_inc(&mut self.next_completion_id);
5816
5817 if let Some(buffer) = buffer {
5818 *self.context_menu.write() = Some(ContextMenu::Completions(
5819 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer)
5820 .suppress_documentation_resolution(),
5821 ));
5822 }
5823 }
5824
5825 pub fn insert_snippet(
5826 &mut self,
5827 insertion_ranges: &[Range<usize>],
5828 snippet: Snippet,
5829 cx: &mut ViewContext<Self>,
5830 ) -> Result<()> {
5831 struct Tabstop<T> {
5832 is_end_tabstop: bool,
5833 ranges: Vec<Range<T>>,
5834 choices: Option<Vec<String>>,
5835 }
5836
5837 let tabstops = self.buffer.update(cx, |buffer, cx| {
5838 let snippet_text: Arc<str> = snippet.text.clone().into();
5839 buffer.edit(
5840 insertion_ranges
5841 .iter()
5842 .cloned()
5843 .map(|range| (range, snippet_text.clone())),
5844 Some(AutoindentMode::EachLine),
5845 cx,
5846 );
5847
5848 let snapshot = &*buffer.read(cx);
5849 let snippet = &snippet;
5850 snippet
5851 .tabstops
5852 .iter()
5853 .map(|tabstop| {
5854 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5855 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5856 });
5857 let mut tabstop_ranges = tabstop
5858 .ranges
5859 .iter()
5860 .flat_map(|tabstop_range| {
5861 let mut delta = 0_isize;
5862 insertion_ranges.iter().map(move |insertion_range| {
5863 let insertion_start = insertion_range.start as isize + delta;
5864 delta +=
5865 snippet.text.len() as isize - insertion_range.len() as isize;
5866
5867 let start = ((insertion_start + tabstop_range.start) as usize)
5868 .min(snapshot.len());
5869 let end = ((insertion_start + tabstop_range.end) as usize)
5870 .min(snapshot.len());
5871 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5872 })
5873 })
5874 .collect::<Vec<_>>();
5875 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5876
5877 Tabstop {
5878 is_end_tabstop,
5879 ranges: tabstop_ranges,
5880 choices: tabstop.choices.clone(),
5881 }
5882 })
5883 .collect::<Vec<_>>()
5884 });
5885 if let Some(tabstop) = tabstops.first() {
5886 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5887 s.select_ranges(tabstop.ranges.iter().cloned());
5888 });
5889
5890 if let Some(choices) = &tabstop.choices {
5891 if let Some(selection) = tabstop.ranges.first() {
5892 self.show_snippet_choices(choices, selection.clone(), cx)
5893 }
5894 }
5895
5896 // If we're already at the last tabstop and it's at the end of the snippet,
5897 // we're done, we don't need to keep the state around.
5898 if !tabstop.is_end_tabstop {
5899 let choices = tabstops
5900 .iter()
5901 .map(|tabstop| tabstop.choices.clone())
5902 .collect();
5903
5904 let ranges = tabstops
5905 .into_iter()
5906 .map(|tabstop| tabstop.ranges)
5907 .collect::<Vec<_>>();
5908
5909 self.snippet_stack.push(SnippetState {
5910 active_index: 0,
5911 ranges,
5912 choices,
5913 });
5914 }
5915
5916 // Check whether the just-entered snippet ends with an auto-closable bracket.
5917 if self.autoclose_regions.is_empty() {
5918 let snapshot = self.buffer.read(cx).snapshot(cx);
5919 for selection in &mut self.selections.all::<Point>(cx) {
5920 let selection_head = selection.head();
5921 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5922 continue;
5923 };
5924
5925 let mut bracket_pair = None;
5926 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5927 let prev_chars = snapshot
5928 .reversed_chars_at(selection_head)
5929 .collect::<String>();
5930 for (pair, enabled) in scope.brackets() {
5931 if enabled
5932 && pair.close
5933 && prev_chars.starts_with(pair.start.as_str())
5934 && next_chars.starts_with(pair.end.as_str())
5935 {
5936 bracket_pair = Some(pair.clone());
5937 break;
5938 }
5939 }
5940 if let Some(pair) = bracket_pair {
5941 let start = snapshot.anchor_after(selection_head);
5942 let end = snapshot.anchor_after(selection_head);
5943 self.autoclose_regions.push(AutocloseRegion {
5944 selection_id: selection.id,
5945 range: start..end,
5946 pair,
5947 });
5948 }
5949 }
5950 }
5951 }
5952 Ok(())
5953 }
5954
5955 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5956 self.move_to_snippet_tabstop(Bias::Right, cx)
5957 }
5958
5959 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5960 self.move_to_snippet_tabstop(Bias::Left, cx)
5961 }
5962
5963 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5964 if let Some(mut snippet) = self.snippet_stack.pop() {
5965 match bias {
5966 Bias::Left => {
5967 if snippet.active_index > 0 {
5968 snippet.active_index -= 1;
5969 } else {
5970 self.snippet_stack.push(snippet);
5971 return false;
5972 }
5973 }
5974 Bias::Right => {
5975 if snippet.active_index + 1 < snippet.ranges.len() {
5976 snippet.active_index += 1;
5977 } else {
5978 self.snippet_stack.push(snippet);
5979 return false;
5980 }
5981 }
5982 }
5983 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5984 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5985 s.select_anchor_ranges(current_ranges.iter().cloned())
5986 });
5987
5988 if let Some(choices) = &snippet.choices[snippet.active_index] {
5989 if let Some(selection) = current_ranges.first() {
5990 self.show_snippet_choices(&choices, selection.clone(), cx);
5991 }
5992 }
5993
5994 // If snippet state is not at the last tabstop, push it back on the stack
5995 if snippet.active_index + 1 < snippet.ranges.len() {
5996 self.snippet_stack.push(snippet);
5997 }
5998 return true;
5999 }
6000 }
6001
6002 false
6003 }
6004
6005 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
6006 self.transact(cx, |this, cx| {
6007 this.select_all(&SelectAll, cx);
6008 this.insert("", cx);
6009 });
6010 }
6011
6012 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
6013 self.transact(cx, |this, cx| {
6014 this.select_autoclose_pair(cx);
6015 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
6016 if !this.linked_edit_ranges.is_empty() {
6017 let selections = this.selections.all::<MultiBufferPoint>(cx);
6018 let snapshot = this.buffer.read(cx).snapshot(cx);
6019
6020 for selection in selections.iter() {
6021 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
6022 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
6023 if selection_start.buffer_id != selection_end.buffer_id {
6024 continue;
6025 }
6026 if let Some(ranges) =
6027 this.linked_editing_ranges_for(selection_start..selection_end, cx)
6028 {
6029 for (buffer, entries) in ranges {
6030 linked_ranges.entry(buffer).or_default().extend(entries);
6031 }
6032 }
6033 }
6034 }
6035
6036 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
6037 if !this.selections.line_mode {
6038 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
6039 for selection in &mut selections {
6040 if selection.is_empty() {
6041 let old_head = selection.head();
6042 let mut new_head =
6043 movement::left(&display_map, old_head.to_display_point(&display_map))
6044 .to_point(&display_map);
6045 if let Some((buffer, line_buffer_range)) = display_map
6046 .buffer_snapshot
6047 .buffer_line_for_row(MultiBufferRow(old_head.row))
6048 {
6049 let indent_size =
6050 buffer.indent_size_for_line(line_buffer_range.start.row);
6051 let indent_len = match indent_size.kind {
6052 IndentKind::Space => {
6053 buffer.settings_at(line_buffer_range.start, cx).tab_size
6054 }
6055 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
6056 };
6057 if old_head.column <= indent_size.len && old_head.column > 0 {
6058 let indent_len = indent_len.get();
6059 new_head = cmp::min(
6060 new_head,
6061 MultiBufferPoint::new(
6062 old_head.row,
6063 ((old_head.column - 1) / indent_len) * indent_len,
6064 ),
6065 );
6066 }
6067 }
6068
6069 selection.set_head(new_head, SelectionGoal::None);
6070 }
6071 }
6072 }
6073
6074 this.signature_help_state.set_backspace_pressed(true);
6075 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6076 this.insert("", cx);
6077 let empty_str: Arc<str> = Arc::from("");
6078 for (buffer, edits) in linked_ranges {
6079 let snapshot = buffer.read(cx).snapshot();
6080 use text::ToPoint as TP;
6081
6082 let edits = edits
6083 .into_iter()
6084 .map(|range| {
6085 let end_point = TP::to_point(&range.end, &snapshot);
6086 let mut start_point = TP::to_point(&range.start, &snapshot);
6087
6088 if end_point == start_point {
6089 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
6090 .saturating_sub(1);
6091 start_point = TP::to_point(&offset, &snapshot);
6092 };
6093
6094 (start_point..end_point, empty_str.clone())
6095 })
6096 .sorted_by_key(|(range, _)| range.start)
6097 .collect::<Vec<_>>();
6098 buffer.update(cx, |this, cx| {
6099 this.edit(edits, None, cx);
6100 })
6101 }
6102 this.refresh_inline_completion(true, false, cx);
6103 linked_editing_ranges::refresh_linked_ranges(this, cx);
6104 });
6105 }
6106
6107 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
6108 self.transact(cx, |this, cx| {
6109 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6110 let line_mode = s.line_mode;
6111 s.move_with(|map, selection| {
6112 if selection.is_empty() && !line_mode {
6113 let cursor = movement::right(map, selection.head());
6114 selection.end = cursor;
6115 selection.reversed = true;
6116 selection.goal = SelectionGoal::None;
6117 }
6118 })
6119 });
6120 this.insert("", cx);
6121 this.refresh_inline_completion(true, false, cx);
6122 });
6123 }
6124
6125 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
6126 if self.move_to_prev_snippet_tabstop(cx) {
6127 return;
6128 }
6129
6130 self.outdent(&Outdent, cx);
6131 }
6132
6133 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
6134 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
6135 return;
6136 }
6137
6138 let mut selections = self.selections.all_adjusted(cx);
6139 let buffer = self.buffer.read(cx);
6140 let snapshot = buffer.snapshot(cx);
6141 let rows_iter = selections.iter().map(|s| s.head().row);
6142 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
6143
6144 let mut edits = Vec::new();
6145 let mut prev_edited_row = 0;
6146 let mut row_delta = 0;
6147 for selection in &mut selections {
6148 if selection.start.row != prev_edited_row {
6149 row_delta = 0;
6150 }
6151 prev_edited_row = selection.end.row;
6152
6153 // If the selection is non-empty, then increase the indentation of the selected lines.
6154 if !selection.is_empty() {
6155 row_delta =
6156 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6157 continue;
6158 }
6159
6160 // If the selection is empty and the cursor is in the leading whitespace before the
6161 // suggested indentation, then auto-indent the line.
6162 let cursor = selection.head();
6163 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6164 if let Some(suggested_indent) =
6165 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6166 {
6167 if cursor.column < suggested_indent.len
6168 && cursor.column <= current_indent.len
6169 && current_indent.len <= suggested_indent.len
6170 {
6171 selection.start = Point::new(cursor.row, suggested_indent.len);
6172 selection.end = selection.start;
6173 if row_delta == 0 {
6174 edits.extend(Buffer::edit_for_indent_size_adjustment(
6175 cursor.row,
6176 current_indent,
6177 suggested_indent,
6178 ));
6179 row_delta = suggested_indent.len - current_indent.len;
6180 }
6181 continue;
6182 }
6183 }
6184
6185 // Otherwise, insert a hard or soft tab.
6186 let settings = buffer.settings_at(cursor, cx);
6187 let tab_size = if settings.hard_tabs {
6188 IndentSize::tab()
6189 } else {
6190 let tab_size = settings.tab_size.get();
6191 let char_column = snapshot
6192 .text_for_range(Point::new(cursor.row, 0)..cursor)
6193 .flat_map(str::chars)
6194 .count()
6195 + row_delta as usize;
6196 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6197 IndentSize::spaces(chars_to_next_tab_stop)
6198 };
6199 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6200 selection.end = selection.start;
6201 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6202 row_delta += tab_size.len;
6203 }
6204
6205 self.transact(cx, |this, cx| {
6206 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6207 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6208 this.refresh_inline_completion(true, false, cx);
6209 });
6210 }
6211
6212 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6213 if self.read_only(cx) {
6214 return;
6215 }
6216 let mut selections = self.selections.all::<Point>(cx);
6217 let mut prev_edited_row = 0;
6218 let mut row_delta = 0;
6219 let mut edits = Vec::new();
6220 let buffer = self.buffer.read(cx);
6221 let snapshot = buffer.snapshot(cx);
6222 for selection in &mut selections {
6223 if selection.start.row != prev_edited_row {
6224 row_delta = 0;
6225 }
6226 prev_edited_row = selection.end.row;
6227
6228 row_delta =
6229 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6230 }
6231
6232 self.transact(cx, |this, cx| {
6233 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6234 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6235 });
6236 }
6237
6238 fn indent_selection(
6239 buffer: &MultiBuffer,
6240 snapshot: &MultiBufferSnapshot,
6241 selection: &mut Selection<Point>,
6242 edits: &mut Vec<(Range<Point>, String)>,
6243 delta_for_start_row: u32,
6244 cx: &AppContext,
6245 ) -> u32 {
6246 let settings = buffer.settings_at(selection.start, cx);
6247 let tab_size = settings.tab_size.get();
6248 let indent_kind = if settings.hard_tabs {
6249 IndentKind::Tab
6250 } else {
6251 IndentKind::Space
6252 };
6253 let mut start_row = selection.start.row;
6254 let mut end_row = selection.end.row + 1;
6255
6256 // If a selection ends at the beginning of a line, don't indent
6257 // that last line.
6258 if selection.end.column == 0 && selection.end.row > selection.start.row {
6259 end_row -= 1;
6260 }
6261
6262 // Avoid re-indenting a row that has already been indented by a
6263 // previous selection, but still update this selection's column
6264 // to reflect that indentation.
6265 if delta_for_start_row > 0 {
6266 start_row += 1;
6267 selection.start.column += delta_for_start_row;
6268 if selection.end.row == selection.start.row {
6269 selection.end.column += delta_for_start_row;
6270 }
6271 }
6272
6273 let mut delta_for_end_row = 0;
6274 let has_multiple_rows = start_row + 1 != end_row;
6275 for row in start_row..end_row {
6276 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6277 let indent_delta = match (current_indent.kind, indent_kind) {
6278 (IndentKind::Space, IndentKind::Space) => {
6279 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6280 IndentSize::spaces(columns_to_next_tab_stop)
6281 }
6282 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6283 (_, IndentKind::Tab) => IndentSize::tab(),
6284 };
6285
6286 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6287 0
6288 } else {
6289 selection.start.column
6290 };
6291 let row_start = Point::new(row, start);
6292 edits.push((
6293 row_start..row_start,
6294 indent_delta.chars().collect::<String>(),
6295 ));
6296
6297 // Update this selection's endpoints to reflect the indentation.
6298 if row == selection.start.row {
6299 selection.start.column += indent_delta.len;
6300 }
6301 if row == selection.end.row {
6302 selection.end.column += indent_delta.len;
6303 delta_for_end_row = indent_delta.len;
6304 }
6305 }
6306
6307 if selection.start.row == selection.end.row {
6308 delta_for_start_row + delta_for_end_row
6309 } else {
6310 delta_for_end_row
6311 }
6312 }
6313
6314 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6315 if self.read_only(cx) {
6316 return;
6317 }
6318 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6319 let selections = self.selections.all::<Point>(cx);
6320 let mut deletion_ranges = Vec::new();
6321 let mut last_outdent = None;
6322 {
6323 let buffer = self.buffer.read(cx);
6324 let snapshot = buffer.snapshot(cx);
6325 for selection in &selections {
6326 let settings = buffer.settings_at(selection.start, cx);
6327 let tab_size = settings.tab_size.get();
6328 let mut rows = selection.spanned_rows(false, &display_map);
6329
6330 // Avoid re-outdenting a row that has already been outdented by a
6331 // previous selection.
6332 if let Some(last_row) = last_outdent {
6333 if last_row == rows.start {
6334 rows.start = rows.start.next_row();
6335 }
6336 }
6337 let has_multiple_rows = rows.len() > 1;
6338 for row in rows.iter_rows() {
6339 let indent_size = snapshot.indent_size_for_line(row);
6340 if indent_size.len > 0 {
6341 let deletion_len = match indent_size.kind {
6342 IndentKind::Space => {
6343 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6344 if columns_to_prev_tab_stop == 0 {
6345 tab_size
6346 } else {
6347 columns_to_prev_tab_stop
6348 }
6349 }
6350 IndentKind::Tab => 1,
6351 };
6352 let start = if has_multiple_rows
6353 || deletion_len > selection.start.column
6354 || indent_size.len < selection.start.column
6355 {
6356 0
6357 } else {
6358 selection.start.column - deletion_len
6359 };
6360 deletion_ranges.push(
6361 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6362 );
6363 last_outdent = Some(row);
6364 }
6365 }
6366 }
6367 }
6368
6369 self.transact(cx, |this, cx| {
6370 this.buffer.update(cx, |buffer, cx| {
6371 let empty_str: Arc<str> = Arc::default();
6372 buffer.edit(
6373 deletion_ranges
6374 .into_iter()
6375 .map(|range| (range, empty_str.clone())),
6376 None,
6377 cx,
6378 );
6379 });
6380 let selections = this.selections.all::<usize>(cx);
6381 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6382 });
6383 }
6384
6385 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6386 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6387 let selections = self.selections.all::<Point>(cx);
6388
6389 let mut new_cursors = Vec::new();
6390 let mut edit_ranges = Vec::new();
6391 let mut selections = selections.iter().peekable();
6392 while let Some(selection) = selections.next() {
6393 let mut rows = selection.spanned_rows(false, &display_map);
6394 let goal_display_column = selection.head().to_display_point(&display_map).column();
6395
6396 // Accumulate contiguous regions of rows that we want to delete.
6397 while let Some(next_selection) = selections.peek() {
6398 let next_rows = next_selection.spanned_rows(false, &display_map);
6399 if next_rows.start <= rows.end {
6400 rows.end = next_rows.end;
6401 selections.next().unwrap();
6402 } else {
6403 break;
6404 }
6405 }
6406
6407 let buffer = &display_map.buffer_snapshot;
6408 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6409 let edit_end;
6410 let cursor_buffer_row;
6411 if buffer.max_point().row >= rows.end.0 {
6412 // If there's a line after the range, delete the \n from the end of the row range
6413 // and position the cursor on the next line.
6414 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6415 cursor_buffer_row = rows.end;
6416 } else {
6417 // If there isn't a line after the range, delete the \n from the line before the
6418 // start of the row range and position the cursor there.
6419 edit_start = edit_start.saturating_sub(1);
6420 edit_end = buffer.len();
6421 cursor_buffer_row = rows.start.previous_row();
6422 }
6423
6424 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6425 *cursor.column_mut() =
6426 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6427
6428 new_cursors.push((
6429 selection.id,
6430 buffer.anchor_after(cursor.to_point(&display_map)),
6431 ));
6432 edit_ranges.push(edit_start..edit_end);
6433 }
6434
6435 self.transact(cx, |this, cx| {
6436 let buffer = this.buffer.update(cx, |buffer, cx| {
6437 let empty_str: Arc<str> = Arc::default();
6438 buffer.edit(
6439 edit_ranges
6440 .into_iter()
6441 .map(|range| (range, empty_str.clone())),
6442 None,
6443 cx,
6444 );
6445 buffer.snapshot(cx)
6446 });
6447 let new_selections = new_cursors
6448 .into_iter()
6449 .map(|(id, cursor)| {
6450 let cursor = cursor.to_point(&buffer);
6451 Selection {
6452 id,
6453 start: cursor,
6454 end: cursor,
6455 reversed: false,
6456 goal: SelectionGoal::None,
6457 }
6458 })
6459 .collect();
6460
6461 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6462 s.select(new_selections);
6463 });
6464 });
6465 }
6466
6467 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6468 if self.read_only(cx) {
6469 return;
6470 }
6471 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6472 for selection in self.selections.all::<Point>(cx) {
6473 let start = MultiBufferRow(selection.start.row);
6474 // Treat single line selections as if they include the next line. Otherwise this action
6475 // would do nothing for single line selections individual cursors.
6476 let end = if selection.start.row == selection.end.row {
6477 MultiBufferRow(selection.start.row + 1)
6478 } else {
6479 MultiBufferRow(selection.end.row)
6480 };
6481
6482 if let Some(last_row_range) = row_ranges.last_mut() {
6483 if start <= last_row_range.end {
6484 last_row_range.end = end;
6485 continue;
6486 }
6487 }
6488 row_ranges.push(start..end);
6489 }
6490
6491 let snapshot = self.buffer.read(cx).snapshot(cx);
6492 let mut cursor_positions = Vec::new();
6493 for row_range in &row_ranges {
6494 let anchor = snapshot.anchor_before(Point::new(
6495 row_range.end.previous_row().0,
6496 snapshot.line_len(row_range.end.previous_row()),
6497 ));
6498 cursor_positions.push(anchor..anchor);
6499 }
6500
6501 self.transact(cx, |this, cx| {
6502 for row_range in row_ranges.into_iter().rev() {
6503 for row in row_range.iter_rows().rev() {
6504 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6505 let next_line_row = row.next_row();
6506 let indent = snapshot.indent_size_for_line(next_line_row);
6507 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6508
6509 let replace = if snapshot.line_len(next_line_row) > indent.len {
6510 " "
6511 } else {
6512 ""
6513 };
6514
6515 this.buffer.update(cx, |buffer, cx| {
6516 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6517 });
6518 }
6519 }
6520
6521 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6522 s.select_anchor_ranges(cursor_positions)
6523 });
6524 });
6525 }
6526
6527 pub fn sort_lines_case_sensitive(
6528 &mut self,
6529 _: &SortLinesCaseSensitive,
6530 cx: &mut ViewContext<Self>,
6531 ) {
6532 self.manipulate_lines(cx, |lines| lines.sort())
6533 }
6534
6535 pub fn sort_lines_case_insensitive(
6536 &mut self,
6537 _: &SortLinesCaseInsensitive,
6538 cx: &mut ViewContext<Self>,
6539 ) {
6540 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6541 }
6542
6543 pub fn unique_lines_case_insensitive(
6544 &mut self,
6545 _: &UniqueLinesCaseInsensitive,
6546 cx: &mut ViewContext<Self>,
6547 ) {
6548 self.manipulate_lines(cx, |lines| {
6549 let mut seen = HashSet::default();
6550 lines.retain(|line| seen.insert(line.to_lowercase()));
6551 })
6552 }
6553
6554 pub fn unique_lines_case_sensitive(
6555 &mut self,
6556 _: &UniqueLinesCaseSensitive,
6557 cx: &mut ViewContext<Self>,
6558 ) {
6559 self.manipulate_lines(cx, |lines| {
6560 let mut seen = HashSet::default();
6561 lines.retain(|line| seen.insert(*line));
6562 })
6563 }
6564
6565 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6566 let mut revert_changes = HashMap::default();
6567 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6568 for hunk in hunks_for_rows(
6569 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6570 &multi_buffer_snapshot,
6571 ) {
6572 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6573 }
6574 if !revert_changes.is_empty() {
6575 self.transact(cx, |editor, cx| {
6576 editor.revert(revert_changes, cx);
6577 });
6578 }
6579 }
6580
6581 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6582 let Some(project) = self.project.clone() else {
6583 return;
6584 };
6585 self.reload(project, cx).detach_and_notify_err(cx);
6586 }
6587
6588 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6589 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6590 if !revert_changes.is_empty() {
6591 self.transact(cx, |editor, cx| {
6592 editor.revert(revert_changes, cx);
6593 });
6594 }
6595 }
6596
6597 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6598 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6599 let project_path = buffer.read(cx).project_path(cx)?;
6600 let project = self.project.as_ref()?.read(cx);
6601 let entry = project.entry_for_path(&project_path, cx)?;
6602 let parent = match &entry.canonical_path {
6603 Some(canonical_path) => canonical_path.to_path_buf(),
6604 None => project.absolute_path(&project_path, cx)?,
6605 }
6606 .parent()?
6607 .to_path_buf();
6608 Some(parent)
6609 }) {
6610 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6611 }
6612 }
6613
6614 fn gather_revert_changes(
6615 &mut self,
6616 selections: &[Selection<Anchor>],
6617 cx: &mut ViewContext<'_, Editor>,
6618 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6619 let mut revert_changes = HashMap::default();
6620 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6621 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6622 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6623 }
6624 revert_changes
6625 }
6626
6627 pub fn prepare_revert_change(
6628 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6629 multi_buffer: &Model<MultiBuffer>,
6630 hunk: &MultiBufferDiffHunk,
6631 cx: &AppContext,
6632 ) -> Option<()> {
6633 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6634 let buffer = buffer.read(cx);
6635 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6636 let buffer_snapshot = buffer.snapshot();
6637 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6638 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6639 probe
6640 .0
6641 .start
6642 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6643 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6644 }) {
6645 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6646 Some(())
6647 } else {
6648 None
6649 }
6650 }
6651
6652 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6653 self.manipulate_lines(cx, |lines| lines.reverse())
6654 }
6655
6656 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6657 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6658 }
6659
6660 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6661 where
6662 Fn: FnMut(&mut Vec<&str>),
6663 {
6664 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6665 let buffer = self.buffer.read(cx).snapshot(cx);
6666
6667 let mut edits = Vec::new();
6668
6669 let selections = self.selections.all::<Point>(cx);
6670 let mut selections = selections.iter().peekable();
6671 let mut contiguous_row_selections = Vec::new();
6672 let mut new_selections = Vec::new();
6673 let mut added_lines = 0;
6674 let mut removed_lines = 0;
6675
6676 while let Some(selection) = selections.next() {
6677 let (start_row, end_row) = consume_contiguous_rows(
6678 &mut contiguous_row_selections,
6679 selection,
6680 &display_map,
6681 &mut selections,
6682 );
6683
6684 let start_point = Point::new(start_row.0, 0);
6685 let end_point = Point::new(
6686 end_row.previous_row().0,
6687 buffer.line_len(end_row.previous_row()),
6688 );
6689 let text = buffer
6690 .text_for_range(start_point..end_point)
6691 .collect::<String>();
6692
6693 let mut lines = text.split('\n').collect_vec();
6694
6695 let lines_before = lines.len();
6696 callback(&mut lines);
6697 let lines_after = lines.len();
6698
6699 edits.push((start_point..end_point, lines.join("\n")));
6700
6701 // Selections must change based on added and removed line count
6702 let start_row =
6703 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6704 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6705 new_selections.push(Selection {
6706 id: selection.id,
6707 start: start_row,
6708 end: end_row,
6709 goal: SelectionGoal::None,
6710 reversed: selection.reversed,
6711 });
6712
6713 if lines_after > lines_before {
6714 added_lines += lines_after - lines_before;
6715 } else if lines_before > lines_after {
6716 removed_lines += lines_before - lines_after;
6717 }
6718 }
6719
6720 self.transact(cx, |this, cx| {
6721 let buffer = this.buffer.update(cx, |buffer, cx| {
6722 buffer.edit(edits, None, cx);
6723 buffer.snapshot(cx)
6724 });
6725
6726 // Recalculate offsets on newly edited buffer
6727 let new_selections = new_selections
6728 .iter()
6729 .map(|s| {
6730 let start_point = Point::new(s.start.0, 0);
6731 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6732 Selection {
6733 id: s.id,
6734 start: buffer.point_to_offset(start_point),
6735 end: buffer.point_to_offset(end_point),
6736 goal: s.goal,
6737 reversed: s.reversed,
6738 }
6739 })
6740 .collect();
6741
6742 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6743 s.select(new_selections);
6744 });
6745
6746 this.request_autoscroll(Autoscroll::fit(), cx);
6747 });
6748 }
6749
6750 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6751 self.manipulate_text(cx, |text| text.to_uppercase())
6752 }
6753
6754 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6755 self.manipulate_text(cx, |text| text.to_lowercase())
6756 }
6757
6758 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6759 self.manipulate_text(cx, |text| {
6760 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6761 // https://github.com/rutrum/convert-case/issues/16
6762 text.split('\n')
6763 .map(|line| line.to_case(Case::Title))
6764 .join("\n")
6765 })
6766 }
6767
6768 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6769 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6770 }
6771
6772 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6773 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6774 }
6775
6776 pub fn convert_to_upper_camel_case(
6777 &mut self,
6778 _: &ConvertToUpperCamelCase,
6779 cx: &mut ViewContext<Self>,
6780 ) {
6781 self.manipulate_text(cx, |text| {
6782 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6783 // https://github.com/rutrum/convert-case/issues/16
6784 text.split('\n')
6785 .map(|line| line.to_case(Case::UpperCamel))
6786 .join("\n")
6787 })
6788 }
6789
6790 pub fn convert_to_lower_camel_case(
6791 &mut self,
6792 _: &ConvertToLowerCamelCase,
6793 cx: &mut ViewContext<Self>,
6794 ) {
6795 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6796 }
6797
6798 pub fn convert_to_opposite_case(
6799 &mut self,
6800 _: &ConvertToOppositeCase,
6801 cx: &mut ViewContext<Self>,
6802 ) {
6803 self.manipulate_text(cx, |text| {
6804 text.chars()
6805 .fold(String::with_capacity(text.len()), |mut t, c| {
6806 if c.is_uppercase() {
6807 t.extend(c.to_lowercase());
6808 } else {
6809 t.extend(c.to_uppercase());
6810 }
6811 t
6812 })
6813 })
6814 }
6815
6816 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6817 where
6818 Fn: FnMut(&str) -> String,
6819 {
6820 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6821 let buffer = self.buffer.read(cx).snapshot(cx);
6822
6823 let mut new_selections = Vec::new();
6824 let mut edits = Vec::new();
6825 let mut selection_adjustment = 0i32;
6826
6827 for selection in self.selections.all::<usize>(cx) {
6828 let selection_is_empty = selection.is_empty();
6829
6830 let (start, end) = if selection_is_empty {
6831 let word_range = movement::surrounding_word(
6832 &display_map,
6833 selection.start.to_display_point(&display_map),
6834 );
6835 let start = word_range.start.to_offset(&display_map, Bias::Left);
6836 let end = word_range.end.to_offset(&display_map, Bias::Left);
6837 (start, end)
6838 } else {
6839 (selection.start, selection.end)
6840 };
6841
6842 let text = buffer.text_for_range(start..end).collect::<String>();
6843 let old_length = text.len() as i32;
6844 let text = callback(&text);
6845
6846 new_selections.push(Selection {
6847 start: (start as i32 - selection_adjustment) as usize,
6848 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6849 goal: SelectionGoal::None,
6850 ..selection
6851 });
6852
6853 selection_adjustment += old_length - text.len() as i32;
6854
6855 edits.push((start..end, text));
6856 }
6857
6858 self.transact(cx, |this, cx| {
6859 this.buffer.update(cx, |buffer, cx| {
6860 buffer.edit(edits, None, cx);
6861 });
6862
6863 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6864 s.select(new_selections);
6865 });
6866
6867 this.request_autoscroll(Autoscroll::fit(), cx);
6868 });
6869 }
6870
6871 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6872 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6873 let buffer = &display_map.buffer_snapshot;
6874 let selections = self.selections.all::<Point>(cx);
6875
6876 let mut edits = Vec::new();
6877 let mut selections_iter = selections.iter().peekable();
6878 while let Some(selection) = selections_iter.next() {
6879 // Avoid duplicating the same lines twice.
6880 let mut rows = selection.spanned_rows(false, &display_map);
6881
6882 while let Some(next_selection) = selections_iter.peek() {
6883 let next_rows = next_selection.spanned_rows(false, &display_map);
6884 if next_rows.start < rows.end {
6885 rows.end = next_rows.end;
6886 selections_iter.next().unwrap();
6887 } else {
6888 break;
6889 }
6890 }
6891
6892 // Copy the text from the selected row region and splice it either at the start
6893 // or end of the region.
6894 let start = Point::new(rows.start.0, 0);
6895 let end = Point::new(
6896 rows.end.previous_row().0,
6897 buffer.line_len(rows.end.previous_row()),
6898 );
6899 let text = buffer
6900 .text_for_range(start..end)
6901 .chain(Some("\n"))
6902 .collect::<String>();
6903 let insert_location = if upwards {
6904 Point::new(rows.end.0, 0)
6905 } else {
6906 start
6907 };
6908 edits.push((insert_location..insert_location, text));
6909 }
6910
6911 self.transact(cx, |this, cx| {
6912 this.buffer.update(cx, |buffer, cx| {
6913 buffer.edit(edits, None, cx);
6914 });
6915
6916 this.request_autoscroll(Autoscroll::fit(), cx);
6917 });
6918 }
6919
6920 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6921 self.duplicate_line(true, cx);
6922 }
6923
6924 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6925 self.duplicate_line(false, cx);
6926 }
6927
6928 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6929 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6930 let buffer = self.buffer.read(cx).snapshot(cx);
6931
6932 let mut edits = Vec::new();
6933 let mut unfold_ranges = Vec::new();
6934 let mut refold_creases = Vec::new();
6935
6936 let selections = self.selections.all::<Point>(cx);
6937 let mut selections = selections.iter().peekable();
6938 let mut contiguous_row_selections = Vec::new();
6939 let mut new_selections = Vec::new();
6940
6941 while let Some(selection) = selections.next() {
6942 // Find all the selections that span a contiguous row range
6943 let (start_row, end_row) = consume_contiguous_rows(
6944 &mut contiguous_row_selections,
6945 selection,
6946 &display_map,
6947 &mut selections,
6948 );
6949
6950 // Move the text spanned by the row range to be before the line preceding the row range
6951 if start_row.0 > 0 {
6952 let range_to_move = Point::new(
6953 start_row.previous_row().0,
6954 buffer.line_len(start_row.previous_row()),
6955 )
6956 ..Point::new(
6957 end_row.previous_row().0,
6958 buffer.line_len(end_row.previous_row()),
6959 );
6960 let insertion_point = display_map
6961 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6962 .0;
6963
6964 // Don't move lines across excerpts
6965 if buffer
6966 .excerpt_boundaries_in_range((
6967 Bound::Excluded(insertion_point),
6968 Bound::Included(range_to_move.end),
6969 ))
6970 .next()
6971 .is_none()
6972 {
6973 let text = buffer
6974 .text_for_range(range_to_move.clone())
6975 .flat_map(|s| s.chars())
6976 .skip(1)
6977 .chain(['\n'])
6978 .collect::<String>();
6979
6980 edits.push((
6981 buffer.anchor_after(range_to_move.start)
6982 ..buffer.anchor_before(range_to_move.end),
6983 String::new(),
6984 ));
6985 let insertion_anchor = buffer.anchor_after(insertion_point);
6986 edits.push((insertion_anchor..insertion_anchor, text));
6987
6988 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6989
6990 // Move selections up
6991 new_selections.extend(contiguous_row_selections.drain(..).map(
6992 |mut selection| {
6993 selection.start.row -= row_delta;
6994 selection.end.row -= row_delta;
6995 selection
6996 },
6997 ));
6998
6999 // Move folds up
7000 unfold_ranges.push(range_to_move.clone());
7001 for fold in display_map.folds_in_range(
7002 buffer.anchor_before(range_to_move.start)
7003 ..buffer.anchor_after(range_to_move.end),
7004 ) {
7005 let mut start = fold.range.start.to_point(&buffer);
7006 let mut end = fold.range.end.to_point(&buffer);
7007 start.row -= row_delta;
7008 end.row -= row_delta;
7009 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7010 }
7011 }
7012 }
7013
7014 // If we didn't move line(s), preserve the existing selections
7015 new_selections.append(&mut contiguous_row_selections);
7016 }
7017
7018 self.transact(cx, |this, cx| {
7019 this.unfold_ranges(&unfold_ranges, true, true, cx);
7020 this.buffer.update(cx, |buffer, cx| {
7021 for (range, text) in edits {
7022 buffer.edit([(range, text)], None, cx);
7023 }
7024 });
7025 this.fold_creases(refold_creases, true, cx);
7026 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7027 s.select(new_selections);
7028 })
7029 });
7030 }
7031
7032 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
7033 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7034 let buffer = self.buffer.read(cx).snapshot(cx);
7035
7036 let mut edits = Vec::new();
7037 let mut unfold_ranges = Vec::new();
7038 let mut refold_creases = Vec::new();
7039
7040 let selections = self.selections.all::<Point>(cx);
7041 let mut selections = selections.iter().peekable();
7042 let mut contiguous_row_selections = Vec::new();
7043 let mut new_selections = Vec::new();
7044
7045 while let Some(selection) = selections.next() {
7046 // Find all the selections that span a contiguous row range
7047 let (start_row, end_row) = consume_contiguous_rows(
7048 &mut contiguous_row_selections,
7049 selection,
7050 &display_map,
7051 &mut selections,
7052 );
7053
7054 // Move the text spanned by the row range to be after the last line of the row range
7055 if end_row.0 <= buffer.max_point().row {
7056 let range_to_move =
7057 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
7058 let insertion_point = display_map
7059 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
7060 .0;
7061
7062 // Don't move lines across excerpt boundaries
7063 if buffer
7064 .excerpt_boundaries_in_range((
7065 Bound::Excluded(range_to_move.start),
7066 Bound::Included(insertion_point),
7067 ))
7068 .next()
7069 .is_none()
7070 {
7071 let mut text = String::from("\n");
7072 text.extend(buffer.text_for_range(range_to_move.clone()));
7073 text.pop(); // Drop trailing newline
7074 edits.push((
7075 buffer.anchor_after(range_to_move.start)
7076 ..buffer.anchor_before(range_to_move.end),
7077 String::new(),
7078 ));
7079 let insertion_anchor = buffer.anchor_after(insertion_point);
7080 edits.push((insertion_anchor..insertion_anchor, text));
7081
7082 let row_delta = insertion_point.row - range_to_move.end.row + 1;
7083
7084 // Move selections down
7085 new_selections.extend(contiguous_row_selections.drain(..).map(
7086 |mut selection| {
7087 selection.start.row += row_delta;
7088 selection.end.row += row_delta;
7089 selection
7090 },
7091 ));
7092
7093 // Move folds down
7094 unfold_ranges.push(range_to_move.clone());
7095 for fold in display_map.folds_in_range(
7096 buffer.anchor_before(range_to_move.start)
7097 ..buffer.anchor_after(range_to_move.end),
7098 ) {
7099 let mut start = fold.range.start.to_point(&buffer);
7100 let mut end = fold.range.end.to_point(&buffer);
7101 start.row += row_delta;
7102 end.row += row_delta;
7103 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7104 }
7105 }
7106 }
7107
7108 // If we didn't move line(s), preserve the existing selections
7109 new_selections.append(&mut contiguous_row_selections);
7110 }
7111
7112 self.transact(cx, |this, cx| {
7113 this.unfold_ranges(&unfold_ranges, true, true, cx);
7114 this.buffer.update(cx, |buffer, cx| {
7115 for (range, text) in edits {
7116 buffer.edit([(range, text)], None, cx);
7117 }
7118 });
7119 this.fold_creases(refold_creases, true, cx);
7120 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
7121 });
7122 }
7123
7124 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
7125 let text_layout_details = &self.text_layout_details(cx);
7126 self.transact(cx, |this, cx| {
7127 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7128 let mut edits: Vec<(Range<usize>, String)> = Default::default();
7129 let line_mode = s.line_mode;
7130 s.move_with(|display_map, selection| {
7131 if !selection.is_empty() || line_mode {
7132 return;
7133 }
7134
7135 let mut head = selection.head();
7136 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
7137 if head.column() == display_map.line_len(head.row()) {
7138 transpose_offset = display_map
7139 .buffer_snapshot
7140 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7141 }
7142
7143 if transpose_offset == 0 {
7144 return;
7145 }
7146
7147 *head.column_mut() += 1;
7148 head = display_map.clip_point(head, Bias::Right);
7149 let goal = SelectionGoal::HorizontalPosition(
7150 display_map
7151 .x_for_display_point(head, text_layout_details)
7152 .into(),
7153 );
7154 selection.collapse_to(head, goal);
7155
7156 let transpose_start = display_map
7157 .buffer_snapshot
7158 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7159 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7160 let transpose_end = display_map
7161 .buffer_snapshot
7162 .clip_offset(transpose_offset + 1, Bias::Right);
7163 if let Some(ch) =
7164 display_map.buffer_snapshot.chars_at(transpose_start).next()
7165 {
7166 edits.push((transpose_start..transpose_offset, String::new()));
7167 edits.push((transpose_end..transpose_end, ch.to_string()));
7168 }
7169 }
7170 });
7171 edits
7172 });
7173 this.buffer
7174 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7175 let selections = this.selections.all::<usize>(cx);
7176 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7177 s.select(selections);
7178 });
7179 });
7180 }
7181
7182 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
7183 self.rewrap_impl(IsVimMode::No, cx)
7184 }
7185
7186 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
7187 let buffer = self.buffer.read(cx).snapshot(cx);
7188 let selections = self.selections.all::<Point>(cx);
7189 let mut selections = selections.iter().peekable();
7190
7191 let mut edits = Vec::new();
7192 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7193
7194 while let Some(selection) = selections.next() {
7195 let mut start_row = selection.start.row;
7196 let mut end_row = selection.end.row;
7197
7198 // Skip selections that overlap with a range that has already been rewrapped.
7199 let selection_range = start_row..end_row;
7200 if rewrapped_row_ranges
7201 .iter()
7202 .any(|range| range.overlaps(&selection_range))
7203 {
7204 continue;
7205 }
7206
7207 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
7208
7209 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7210 match language_scope.language_name().0.as_ref() {
7211 "Markdown" | "Plain Text" => {
7212 should_rewrap = true;
7213 }
7214 _ => {}
7215 }
7216 }
7217
7218 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7219
7220 // Since not all lines in the selection may be at the same indent
7221 // level, choose the indent size that is the most common between all
7222 // of the lines.
7223 //
7224 // If there is a tie, we use the deepest indent.
7225 let (indent_size, indent_end) = {
7226 let mut indent_size_occurrences = HashMap::default();
7227 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7228
7229 for row in start_row..=end_row {
7230 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7231 rows_by_indent_size.entry(indent).or_default().push(row);
7232 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7233 }
7234
7235 let indent_size = indent_size_occurrences
7236 .into_iter()
7237 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7238 .map(|(indent, _)| indent)
7239 .unwrap_or_default();
7240 let row = rows_by_indent_size[&indent_size][0];
7241 let indent_end = Point::new(row, indent_size.len);
7242
7243 (indent_size, indent_end)
7244 };
7245
7246 let mut line_prefix = indent_size.chars().collect::<String>();
7247
7248 if let Some(comment_prefix) =
7249 buffer
7250 .language_scope_at(selection.head())
7251 .and_then(|language| {
7252 language
7253 .line_comment_prefixes()
7254 .iter()
7255 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7256 .cloned()
7257 })
7258 {
7259 line_prefix.push_str(&comment_prefix);
7260 should_rewrap = true;
7261 }
7262
7263 if !should_rewrap {
7264 continue;
7265 }
7266
7267 if selection.is_empty() {
7268 'expand_upwards: while start_row > 0 {
7269 let prev_row = start_row - 1;
7270 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7271 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7272 {
7273 start_row = prev_row;
7274 } else {
7275 break 'expand_upwards;
7276 }
7277 }
7278
7279 'expand_downwards: while end_row < buffer.max_point().row {
7280 let next_row = end_row + 1;
7281 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7282 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7283 {
7284 end_row = next_row;
7285 } else {
7286 break 'expand_downwards;
7287 }
7288 }
7289 }
7290
7291 let start = Point::new(start_row, 0);
7292 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7293 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7294 let Some(lines_without_prefixes) = selection_text
7295 .lines()
7296 .map(|line| {
7297 line.strip_prefix(&line_prefix)
7298 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7299 .ok_or_else(|| {
7300 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7301 })
7302 })
7303 .collect::<Result<Vec<_>, _>>()
7304 .log_err()
7305 else {
7306 continue;
7307 };
7308
7309 let wrap_column = buffer
7310 .settings_at(Point::new(start_row, 0), cx)
7311 .preferred_line_length as usize;
7312 let wrapped_text = wrap_with_prefix(
7313 line_prefix,
7314 lines_without_prefixes.join(" "),
7315 wrap_column,
7316 tab_size,
7317 );
7318
7319 // TODO: should always use char-based diff while still supporting cursor behavior that
7320 // matches vim.
7321 let diff = match is_vim_mode {
7322 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
7323 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
7324 };
7325 let mut offset = start.to_offset(&buffer);
7326 let mut moved_since_edit = true;
7327
7328 for change in diff.iter_all_changes() {
7329 let value = change.value();
7330 match change.tag() {
7331 ChangeTag::Equal => {
7332 offset += value.len();
7333 moved_since_edit = true;
7334 }
7335 ChangeTag::Delete => {
7336 let start = buffer.anchor_after(offset);
7337 let end = buffer.anchor_before(offset + value.len());
7338
7339 if moved_since_edit {
7340 edits.push((start..end, String::new()));
7341 } else {
7342 edits.last_mut().unwrap().0.end = end;
7343 }
7344
7345 offset += value.len();
7346 moved_since_edit = false;
7347 }
7348 ChangeTag::Insert => {
7349 if moved_since_edit {
7350 let anchor = buffer.anchor_after(offset);
7351 edits.push((anchor..anchor, value.to_string()));
7352 } else {
7353 edits.last_mut().unwrap().1.push_str(value);
7354 }
7355
7356 moved_since_edit = false;
7357 }
7358 }
7359 }
7360
7361 rewrapped_row_ranges.push(start_row..=end_row);
7362 }
7363
7364 self.buffer
7365 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7366 }
7367
7368 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7369 let mut text = String::new();
7370 let buffer = self.buffer.read(cx).snapshot(cx);
7371 let mut selections = self.selections.all::<Point>(cx);
7372 let mut clipboard_selections = Vec::with_capacity(selections.len());
7373 {
7374 let max_point = buffer.max_point();
7375 let mut is_first = true;
7376 for selection in &mut selections {
7377 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7378 if is_entire_line {
7379 selection.start = Point::new(selection.start.row, 0);
7380 if !selection.is_empty() && selection.end.column == 0 {
7381 selection.end = cmp::min(max_point, selection.end);
7382 } else {
7383 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7384 }
7385 selection.goal = SelectionGoal::None;
7386 }
7387 if is_first {
7388 is_first = false;
7389 } else {
7390 text += "\n";
7391 }
7392 let mut len = 0;
7393 for chunk in buffer.text_for_range(selection.start..selection.end) {
7394 text.push_str(chunk);
7395 len += chunk.len();
7396 }
7397 clipboard_selections.push(ClipboardSelection {
7398 len,
7399 is_entire_line,
7400 first_line_indent: buffer
7401 .indent_size_for_line(MultiBufferRow(selection.start.row))
7402 .len,
7403 });
7404 }
7405 }
7406
7407 self.transact(cx, |this, cx| {
7408 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7409 s.select(selections);
7410 });
7411 this.insert("", cx);
7412 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7413 text,
7414 clipboard_selections,
7415 ));
7416 });
7417 }
7418
7419 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7420 let selections = self.selections.all::<Point>(cx);
7421 let buffer = self.buffer.read(cx).read(cx);
7422 let mut text = String::new();
7423
7424 let mut clipboard_selections = Vec::with_capacity(selections.len());
7425 {
7426 let max_point = buffer.max_point();
7427 let mut is_first = true;
7428 for selection in selections.iter() {
7429 let mut start = selection.start;
7430 let mut end = selection.end;
7431 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7432 if is_entire_line {
7433 start = Point::new(start.row, 0);
7434 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7435 }
7436 if is_first {
7437 is_first = false;
7438 } else {
7439 text += "\n";
7440 }
7441 let mut len = 0;
7442 for chunk in buffer.text_for_range(start..end) {
7443 text.push_str(chunk);
7444 len += chunk.len();
7445 }
7446 clipboard_selections.push(ClipboardSelection {
7447 len,
7448 is_entire_line,
7449 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7450 });
7451 }
7452 }
7453
7454 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7455 text,
7456 clipboard_selections,
7457 ));
7458 }
7459
7460 pub fn do_paste(
7461 &mut self,
7462 text: &String,
7463 clipboard_selections: Option<Vec<ClipboardSelection>>,
7464 handle_entire_lines: bool,
7465 cx: &mut ViewContext<Self>,
7466 ) {
7467 if self.read_only(cx) {
7468 return;
7469 }
7470
7471 let clipboard_text = Cow::Borrowed(text);
7472
7473 self.transact(cx, |this, cx| {
7474 if let Some(mut clipboard_selections) = clipboard_selections {
7475 let old_selections = this.selections.all::<usize>(cx);
7476 let all_selections_were_entire_line =
7477 clipboard_selections.iter().all(|s| s.is_entire_line);
7478 let first_selection_indent_column =
7479 clipboard_selections.first().map(|s| s.first_line_indent);
7480 if clipboard_selections.len() != old_selections.len() {
7481 clipboard_selections.drain(..);
7482 }
7483 let cursor_offset = this.selections.last::<usize>(cx).head();
7484 let mut auto_indent_on_paste = true;
7485
7486 this.buffer.update(cx, |buffer, cx| {
7487 let snapshot = buffer.read(cx);
7488 auto_indent_on_paste =
7489 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7490
7491 let mut start_offset = 0;
7492 let mut edits = Vec::new();
7493 let mut original_indent_columns = Vec::new();
7494 for (ix, selection) in old_selections.iter().enumerate() {
7495 let to_insert;
7496 let entire_line;
7497 let original_indent_column;
7498 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7499 let end_offset = start_offset + clipboard_selection.len;
7500 to_insert = &clipboard_text[start_offset..end_offset];
7501 entire_line = clipboard_selection.is_entire_line;
7502 start_offset = end_offset + 1;
7503 original_indent_column = Some(clipboard_selection.first_line_indent);
7504 } else {
7505 to_insert = clipboard_text.as_str();
7506 entire_line = all_selections_were_entire_line;
7507 original_indent_column = first_selection_indent_column
7508 }
7509
7510 // If the corresponding selection was empty when this slice of the
7511 // clipboard text was written, then the entire line containing the
7512 // selection was copied. If this selection is also currently empty,
7513 // then paste the line before the current line of the buffer.
7514 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7515 let column = selection.start.to_point(&snapshot).column as usize;
7516 let line_start = selection.start - column;
7517 line_start..line_start
7518 } else {
7519 selection.range()
7520 };
7521
7522 edits.push((range, to_insert));
7523 original_indent_columns.extend(original_indent_column);
7524 }
7525 drop(snapshot);
7526
7527 buffer.edit(
7528 edits,
7529 if auto_indent_on_paste {
7530 Some(AutoindentMode::Block {
7531 original_indent_columns,
7532 })
7533 } else {
7534 None
7535 },
7536 cx,
7537 );
7538 });
7539
7540 let selections = this.selections.all::<usize>(cx);
7541 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7542 } else {
7543 this.insert(&clipboard_text, cx);
7544 }
7545 });
7546 }
7547
7548 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7549 if let Some(item) = cx.read_from_clipboard() {
7550 let entries = item.entries();
7551
7552 match entries.first() {
7553 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7554 // of all the pasted entries.
7555 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7556 .do_paste(
7557 clipboard_string.text(),
7558 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7559 true,
7560 cx,
7561 ),
7562 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7563 }
7564 }
7565 }
7566
7567 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7568 if self.read_only(cx) {
7569 return;
7570 }
7571
7572 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7573 if let Some((selections, _)) =
7574 self.selection_history.transaction(transaction_id).cloned()
7575 {
7576 self.change_selections(None, cx, |s| {
7577 s.select_anchors(selections.to_vec());
7578 });
7579 }
7580 self.request_autoscroll(Autoscroll::fit(), cx);
7581 self.unmark_text(cx);
7582 self.refresh_inline_completion(true, false, cx);
7583 cx.emit(EditorEvent::Edited { transaction_id });
7584 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7585 }
7586 }
7587
7588 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7589 if self.read_only(cx) {
7590 return;
7591 }
7592
7593 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7594 if let Some((_, Some(selections))) =
7595 self.selection_history.transaction(transaction_id).cloned()
7596 {
7597 self.change_selections(None, cx, |s| {
7598 s.select_anchors(selections.to_vec());
7599 });
7600 }
7601 self.request_autoscroll(Autoscroll::fit(), cx);
7602 self.unmark_text(cx);
7603 self.refresh_inline_completion(true, false, cx);
7604 cx.emit(EditorEvent::Edited { transaction_id });
7605 }
7606 }
7607
7608 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7609 self.buffer
7610 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7611 }
7612
7613 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7614 self.buffer
7615 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7616 }
7617
7618 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7619 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7620 let line_mode = s.line_mode;
7621 s.move_with(|map, selection| {
7622 let cursor = if selection.is_empty() && !line_mode {
7623 movement::left(map, selection.start)
7624 } else {
7625 selection.start
7626 };
7627 selection.collapse_to(cursor, SelectionGoal::None);
7628 });
7629 })
7630 }
7631
7632 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7633 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7634 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7635 })
7636 }
7637
7638 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7639 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7640 let line_mode = s.line_mode;
7641 s.move_with(|map, selection| {
7642 let cursor = if selection.is_empty() && !line_mode {
7643 movement::right(map, selection.end)
7644 } else {
7645 selection.end
7646 };
7647 selection.collapse_to(cursor, SelectionGoal::None)
7648 });
7649 })
7650 }
7651
7652 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7653 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7654 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7655 })
7656 }
7657
7658 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7659 if self.take_rename(true, cx).is_some() {
7660 return;
7661 }
7662
7663 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7664 cx.propagate();
7665 return;
7666 }
7667
7668 let text_layout_details = &self.text_layout_details(cx);
7669 let selection_count = self.selections.count();
7670 let first_selection = self.selections.first_anchor();
7671
7672 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7673 let line_mode = s.line_mode;
7674 s.move_with(|map, selection| {
7675 if !selection.is_empty() && !line_mode {
7676 selection.goal = SelectionGoal::None;
7677 }
7678 let (cursor, goal) = movement::up(
7679 map,
7680 selection.start,
7681 selection.goal,
7682 false,
7683 text_layout_details,
7684 );
7685 selection.collapse_to(cursor, goal);
7686 });
7687 });
7688
7689 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7690 {
7691 cx.propagate();
7692 }
7693 }
7694
7695 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7696 if self.take_rename(true, cx).is_some() {
7697 return;
7698 }
7699
7700 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7701 cx.propagate();
7702 return;
7703 }
7704
7705 let text_layout_details = &self.text_layout_details(cx);
7706
7707 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7708 let line_mode = s.line_mode;
7709 s.move_with(|map, selection| {
7710 if !selection.is_empty() && !line_mode {
7711 selection.goal = SelectionGoal::None;
7712 }
7713 let (cursor, goal) = movement::up_by_rows(
7714 map,
7715 selection.start,
7716 action.lines,
7717 selection.goal,
7718 false,
7719 text_layout_details,
7720 );
7721 selection.collapse_to(cursor, goal);
7722 });
7723 })
7724 }
7725
7726 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7727 if self.take_rename(true, cx).is_some() {
7728 return;
7729 }
7730
7731 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7732 cx.propagate();
7733 return;
7734 }
7735
7736 let text_layout_details = &self.text_layout_details(cx);
7737
7738 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7739 let line_mode = s.line_mode;
7740 s.move_with(|map, selection| {
7741 if !selection.is_empty() && !line_mode {
7742 selection.goal = SelectionGoal::None;
7743 }
7744 let (cursor, goal) = movement::down_by_rows(
7745 map,
7746 selection.start,
7747 action.lines,
7748 selection.goal,
7749 false,
7750 text_layout_details,
7751 );
7752 selection.collapse_to(cursor, goal);
7753 });
7754 })
7755 }
7756
7757 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7758 let text_layout_details = &self.text_layout_details(cx);
7759 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7760 s.move_heads_with(|map, head, goal| {
7761 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7762 })
7763 })
7764 }
7765
7766 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7767 let text_layout_details = &self.text_layout_details(cx);
7768 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7769 s.move_heads_with(|map, head, goal| {
7770 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7771 })
7772 })
7773 }
7774
7775 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7776 let Some(row_count) = self.visible_row_count() else {
7777 return;
7778 };
7779
7780 let text_layout_details = &self.text_layout_details(cx);
7781
7782 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7783 s.move_heads_with(|map, head, goal| {
7784 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7785 })
7786 })
7787 }
7788
7789 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7790 if self.take_rename(true, cx).is_some() {
7791 return;
7792 }
7793
7794 if self
7795 .context_menu
7796 .write()
7797 .as_mut()
7798 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7799 .unwrap_or(false)
7800 {
7801 return;
7802 }
7803
7804 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7805 cx.propagate();
7806 return;
7807 }
7808
7809 let Some(row_count) = self.visible_row_count() else {
7810 return;
7811 };
7812
7813 let autoscroll = if action.center_cursor {
7814 Autoscroll::center()
7815 } else {
7816 Autoscroll::fit()
7817 };
7818
7819 let text_layout_details = &self.text_layout_details(cx);
7820
7821 self.change_selections(Some(autoscroll), cx, |s| {
7822 let line_mode = s.line_mode;
7823 s.move_with(|map, selection| {
7824 if !selection.is_empty() && !line_mode {
7825 selection.goal = SelectionGoal::None;
7826 }
7827 let (cursor, goal) = movement::up_by_rows(
7828 map,
7829 selection.end,
7830 row_count,
7831 selection.goal,
7832 false,
7833 text_layout_details,
7834 );
7835 selection.collapse_to(cursor, goal);
7836 });
7837 });
7838 }
7839
7840 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7841 let text_layout_details = &self.text_layout_details(cx);
7842 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7843 s.move_heads_with(|map, head, goal| {
7844 movement::up(map, head, goal, false, text_layout_details)
7845 })
7846 })
7847 }
7848
7849 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7850 self.take_rename(true, cx);
7851
7852 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7853 cx.propagate();
7854 return;
7855 }
7856
7857 let text_layout_details = &self.text_layout_details(cx);
7858 let selection_count = self.selections.count();
7859 let first_selection = self.selections.first_anchor();
7860
7861 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7862 let line_mode = s.line_mode;
7863 s.move_with(|map, selection| {
7864 if !selection.is_empty() && !line_mode {
7865 selection.goal = SelectionGoal::None;
7866 }
7867 let (cursor, goal) = movement::down(
7868 map,
7869 selection.end,
7870 selection.goal,
7871 false,
7872 text_layout_details,
7873 );
7874 selection.collapse_to(cursor, goal);
7875 });
7876 });
7877
7878 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7879 {
7880 cx.propagate();
7881 }
7882 }
7883
7884 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7885 let Some(row_count) = self.visible_row_count() else {
7886 return;
7887 };
7888
7889 let text_layout_details = &self.text_layout_details(cx);
7890
7891 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7892 s.move_heads_with(|map, head, goal| {
7893 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7894 })
7895 })
7896 }
7897
7898 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7899 if self.take_rename(true, cx).is_some() {
7900 return;
7901 }
7902
7903 if self
7904 .context_menu
7905 .write()
7906 .as_mut()
7907 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7908 .unwrap_or(false)
7909 {
7910 return;
7911 }
7912
7913 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7914 cx.propagate();
7915 return;
7916 }
7917
7918 let Some(row_count) = self.visible_row_count() else {
7919 return;
7920 };
7921
7922 let autoscroll = if action.center_cursor {
7923 Autoscroll::center()
7924 } else {
7925 Autoscroll::fit()
7926 };
7927
7928 let text_layout_details = &self.text_layout_details(cx);
7929 self.change_selections(Some(autoscroll), cx, |s| {
7930 let line_mode = s.line_mode;
7931 s.move_with(|map, selection| {
7932 if !selection.is_empty() && !line_mode {
7933 selection.goal = SelectionGoal::None;
7934 }
7935 let (cursor, goal) = movement::down_by_rows(
7936 map,
7937 selection.end,
7938 row_count,
7939 selection.goal,
7940 false,
7941 text_layout_details,
7942 );
7943 selection.collapse_to(cursor, goal);
7944 });
7945 });
7946 }
7947
7948 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7949 let text_layout_details = &self.text_layout_details(cx);
7950 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7951 s.move_heads_with(|map, head, goal| {
7952 movement::down(map, head, goal, false, text_layout_details)
7953 })
7954 });
7955 }
7956
7957 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7958 if let Some(context_menu) = self.context_menu.write().as_mut() {
7959 context_menu.select_first(self.completion_provider.as_deref(), cx);
7960 }
7961 }
7962
7963 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7964 if let Some(context_menu) = self.context_menu.write().as_mut() {
7965 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7966 }
7967 }
7968
7969 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7970 if let Some(context_menu) = self.context_menu.write().as_mut() {
7971 context_menu.select_next(self.completion_provider.as_deref(), cx);
7972 }
7973 }
7974
7975 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7976 if let Some(context_menu) = self.context_menu.write().as_mut() {
7977 context_menu.select_last(self.completion_provider.as_deref(), cx);
7978 }
7979 }
7980
7981 pub fn move_to_previous_word_start(
7982 &mut self,
7983 _: &MoveToPreviousWordStart,
7984 cx: &mut ViewContext<Self>,
7985 ) {
7986 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7987 s.move_cursors_with(|map, head, _| {
7988 (
7989 movement::previous_word_start(map, head),
7990 SelectionGoal::None,
7991 )
7992 });
7993 })
7994 }
7995
7996 pub fn move_to_previous_subword_start(
7997 &mut self,
7998 _: &MoveToPreviousSubwordStart,
7999 cx: &mut ViewContext<Self>,
8000 ) {
8001 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8002 s.move_cursors_with(|map, head, _| {
8003 (
8004 movement::previous_subword_start(map, head),
8005 SelectionGoal::None,
8006 )
8007 });
8008 })
8009 }
8010
8011 pub fn select_to_previous_word_start(
8012 &mut self,
8013 _: &SelectToPreviousWordStart,
8014 cx: &mut ViewContext<Self>,
8015 ) {
8016 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8017 s.move_heads_with(|map, head, _| {
8018 (
8019 movement::previous_word_start(map, head),
8020 SelectionGoal::None,
8021 )
8022 });
8023 })
8024 }
8025
8026 pub fn select_to_previous_subword_start(
8027 &mut self,
8028 _: &SelectToPreviousSubwordStart,
8029 cx: &mut ViewContext<Self>,
8030 ) {
8031 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8032 s.move_heads_with(|map, head, _| {
8033 (
8034 movement::previous_subword_start(map, head),
8035 SelectionGoal::None,
8036 )
8037 });
8038 })
8039 }
8040
8041 pub fn delete_to_previous_word_start(
8042 &mut self,
8043 action: &DeleteToPreviousWordStart,
8044 cx: &mut ViewContext<Self>,
8045 ) {
8046 self.transact(cx, |this, cx| {
8047 this.select_autoclose_pair(cx);
8048 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8049 let line_mode = s.line_mode;
8050 s.move_with(|map, selection| {
8051 if selection.is_empty() && !line_mode {
8052 let cursor = if action.ignore_newlines {
8053 movement::previous_word_start(map, selection.head())
8054 } else {
8055 movement::previous_word_start_or_newline(map, selection.head())
8056 };
8057 selection.set_head(cursor, SelectionGoal::None);
8058 }
8059 });
8060 });
8061 this.insert("", cx);
8062 });
8063 }
8064
8065 pub fn delete_to_previous_subword_start(
8066 &mut self,
8067 _: &DeleteToPreviousSubwordStart,
8068 cx: &mut ViewContext<Self>,
8069 ) {
8070 self.transact(cx, |this, cx| {
8071 this.select_autoclose_pair(cx);
8072 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8073 let line_mode = s.line_mode;
8074 s.move_with(|map, selection| {
8075 if selection.is_empty() && !line_mode {
8076 let cursor = movement::previous_subword_start(map, selection.head());
8077 selection.set_head(cursor, SelectionGoal::None);
8078 }
8079 });
8080 });
8081 this.insert("", cx);
8082 });
8083 }
8084
8085 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
8086 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8087 s.move_cursors_with(|map, head, _| {
8088 (movement::next_word_end(map, head), SelectionGoal::None)
8089 });
8090 })
8091 }
8092
8093 pub fn move_to_next_subword_end(
8094 &mut self,
8095 _: &MoveToNextSubwordEnd,
8096 cx: &mut ViewContext<Self>,
8097 ) {
8098 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8099 s.move_cursors_with(|map, head, _| {
8100 (movement::next_subword_end(map, head), SelectionGoal::None)
8101 });
8102 })
8103 }
8104
8105 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
8106 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8107 s.move_heads_with(|map, head, _| {
8108 (movement::next_word_end(map, head), SelectionGoal::None)
8109 });
8110 })
8111 }
8112
8113 pub fn select_to_next_subword_end(
8114 &mut self,
8115 _: &SelectToNextSubwordEnd,
8116 cx: &mut ViewContext<Self>,
8117 ) {
8118 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8119 s.move_heads_with(|map, head, _| {
8120 (movement::next_subword_end(map, head), SelectionGoal::None)
8121 });
8122 })
8123 }
8124
8125 pub fn delete_to_next_word_end(
8126 &mut self,
8127 action: &DeleteToNextWordEnd,
8128 cx: &mut ViewContext<Self>,
8129 ) {
8130 self.transact(cx, |this, cx| {
8131 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8132 let line_mode = s.line_mode;
8133 s.move_with(|map, selection| {
8134 if selection.is_empty() && !line_mode {
8135 let cursor = if action.ignore_newlines {
8136 movement::next_word_end(map, selection.head())
8137 } else {
8138 movement::next_word_end_or_newline(map, selection.head())
8139 };
8140 selection.set_head(cursor, SelectionGoal::None);
8141 }
8142 });
8143 });
8144 this.insert("", cx);
8145 });
8146 }
8147
8148 pub fn delete_to_next_subword_end(
8149 &mut self,
8150 _: &DeleteToNextSubwordEnd,
8151 cx: &mut ViewContext<Self>,
8152 ) {
8153 self.transact(cx, |this, cx| {
8154 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8155 s.move_with(|map, selection| {
8156 if selection.is_empty() {
8157 let cursor = movement::next_subword_end(map, selection.head());
8158 selection.set_head(cursor, SelectionGoal::None);
8159 }
8160 });
8161 });
8162 this.insert("", cx);
8163 });
8164 }
8165
8166 pub fn move_to_beginning_of_line(
8167 &mut self,
8168 action: &MoveToBeginningOfLine,
8169 cx: &mut ViewContext<Self>,
8170 ) {
8171 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8172 s.move_cursors_with(|map, head, _| {
8173 (
8174 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8175 SelectionGoal::None,
8176 )
8177 });
8178 })
8179 }
8180
8181 pub fn select_to_beginning_of_line(
8182 &mut self,
8183 action: &SelectToBeginningOfLine,
8184 cx: &mut ViewContext<Self>,
8185 ) {
8186 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8187 s.move_heads_with(|map, head, _| {
8188 (
8189 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8190 SelectionGoal::None,
8191 )
8192 });
8193 });
8194 }
8195
8196 pub fn delete_to_beginning_of_line(
8197 &mut self,
8198 _: &DeleteToBeginningOfLine,
8199 cx: &mut ViewContext<Self>,
8200 ) {
8201 self.transact(cx, |this, cx| {
8202 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8203 s.move_with(|_, selection| {
8204 selection.reversed = true;
8205 });
8206 });
8207
8208 this.select_to_beginning_of_line(
8209 &SelectToBeginningOfLine {
8210 stop_at_soft_wraps: false,
8211 },
8212 cx,
8213 );
8214 this.backspace(&Backspace, cx);
8215 });
8216 }
8217
8218 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8219 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8220 s.move_cursors_with(|map, head, _| {
8221 (
8222 movement::line_end(map, head, action.stop_at_soft_wraps),
8223 SelectionGoal::None,
8224 )
8225 });
8226 })
8227 }
8228
8229 pub fn select_to_end_of_line(
8230 &mut self,
8231 action: &SelectToEndOfLine,
8232 cx: &mut ViewContext<Self>,
8233 ) {
8234 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8235 s.move_heads_with(|map, head, _| {
8236 (
8237 movement::line_end(map, head, action.stop_at_soft_wraps),
8238 SelectionGoal::None,
8239 )
8240 });
8241 })
8242 }
8243
8244 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8245 self.transact(cx, |this, cx| {
8246 this.select_to_end_of_line(
8247 &SelectToEndOfLine {
8248 stop_at_soft_wraps: false,
8249 },
8250 cx,
8251 );
8252 this.delete(&Delete, cx);
8253 });
8254 }
8255
8256 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8257 self.transact(cx, |this, cx| {
8258 this.select_to_end_of_line(
8259 &SelectToEndOfLine {
8260 stop_at_soft_wraps: false,
8261 },
8262 cx,
8263 );
8264 this.cut(&Cut, cx);
8265 });
8266 }
8267
8268 pub fn move_to_start_of_paragraph(
8269 &mut self,
8270 _: &MoveToStartOfParagraph,
8271 cx: &mut ViewContext<Self>,
8272 ) {
8273 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8274 cx.propagate();
8275 return;
8276 }
8277
8278 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8279 s.move_with(|map, selection| {
8280 selection.collapse_to(
8281 movement::start_of_paragraph(map, selection.head(), 1),
8282 SelectionGoal::None,
8283 )
8284 });
8285 })
8286 }
8287
8288 pub fn move_to_end_of_paragraph(
8289 &mut self,
8290 _: &MoveToEndOfParagraph,
8291 cx: &mut ViewContext<Self>,
8292 ) {
8293 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8294 cx.propagate();
8295 return;
8296 }
8297
8298 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8299 s.move_with(|map, selection| {
8300 selection.collapse_to(
8301 movement::end_of_paragraph(map, selection.head(), 1),
8302 SelectionGoal::None,
8303 )
8304 });
8305 })
8306 }
8307
8308 pub fn select_to_start_of_paragraph(
8309 &mut self,
8310 _: &SelectToStartOfParagraph,
8311 cx: &mut ViewContext<Self>,
8312 ) {
8313 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8314 cx.propagate();
8315 return;
8316 }
8317
8318 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8319 s.move_heads_with(|map, head, _| {
8320 (
8321 movement::start_of_paragraph(map, head, 1),
8322 SelectionGoal::None,
8323 )
8324 });
8325 })
8326 }
8327
8328 pub fn select_to_end_of_paragraph(
8329 &mut self,
8330 _: &SelectToEndOfParagraph,
8331 cx: &mut ViewContext<Self>,
8332 ) {
8333 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8334 cx.propagate();
8335 return;
8336 }
8337
8338 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8339 s.move_heads_with(|map, head, _| {
8340 (
8341 movement::end_of_paragraph(map, head, 1),
8342 SelectionGoal::None,
8343 )
8344 });
8345 })
8346 }
8347
8348 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8349 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8350 cx.propagate();
8351 return;
8352 }
8353
8354 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8355 s.select_ranges(vec![0..0]);
8356 });
8357 }
8358
8359 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8360 let mut selection = self.selections.last::<Point>(cx);
8361 selection.set_head(Point::zero(), SelectionGoal::None);
8362
8363 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8364 s.select(vec![selection]);
8365 });
8366 }
8367
8368 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8369 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8370 cx.propagate();
8371 return;
8372 }
8373
8374 let cursor = self.buffer.read(cx).read(cx).len();
8375 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8376 s.select_ranges(vec![cursor..cursor])
8377 });
8378 }
8379
8380 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8381 self.nav_history = nav_history;
8382 }
8383
8384 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8385 self.nav_history.as_ref()
8386 }
8387
8388 fn push_to_nav_history(
8389 &mut self,
8390 cursor_anchor: Anchor,
8391 new_position: Option<Point>,
8392 cx: &mut ViewContext<Self>,
8393 ) {
8394 if let Some(nav_history) = self.nav_history.as_mut() {
8395 let buffer = self.buffer.read(cx).read(cx);
8396 let cursor_position = cursor_anchor.to_point(&buffer);
8397 let scroll_state = self.scroll_manager.anchor();
8398 let scroll_top_row = scroll_state.top_row(&buffer);
8399 drop(buffer);
8400
8401 if let Some(new_position) = new_position {
8402 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8403 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8404 return;
8405 }
8406 }
8407
8408 nav_history.push(
8409 Some(NavigationData {
8410 cursor_anchor,
8411 cursor_position,
8412 scroll_anchor: scroll_state,
8413 scroll_top_row,
8414 }),
8415 cx,
8416 );
8417 }
8418 }
8419
8420 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8421 let buffer = self.buffer.read(cx).snapshot(cx);
8422 let mut selection = self.selections.first::<usize>(cx);
8423 selection.set_head(buffer.len(), SelectionGoal::None);
8424 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8425 s.select(vec![selection]);
8426 });
8427 }
8428
8429 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8430 let end = self.buffer.read(cx).read(cx).len();
8431 self.change_selections(None, cx, |s| {
8432 s.select_ranges(vec![0..end]);
8433 });
8434 }
8435
8436 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8437 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8438 let mut selections = self.selections.all::<Point>(cx);
8439 let max_point = display_map.buffer_snapshot.max_point();
8440 for selection in &mut selections {
8441 let rows = selection.spanned_rows(true, &display_map);
8442 selection.start = Point::new(rows.start.0, 0);
8443 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8444 selection.reversed = false;
8445 }
8446 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8447 s.select(selections);
8448 });
8449 }
8450
8451 pub fn split_selection_into_lines(
8452 &mut self,
8453 _: &SplitSelectionIntoLines,
8454 cx: &mut ViewContext<Self>,
8455 ) {
8456 let mut to_unfold = Vec::new();
8457 let mut new_selection_ranges = Vec::new();
8458 {
8459 let selections = self.selections.all::<Point>(cx);
8460 let buffer = self.buffer.read(cx).read(cx);
8461 for selection in selections {
8462 for row in selection.start.row..selection.end.row {
8463 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8464 new_selection_ranges.push(cursor..cursor);
8465 }
8466 new_selection_ranges.push(selection.end..selection.end);
8467 to_unfold.push(selection.start..selection.end);
8468 }
8469 }
8470 self.unfold_ranges(&to_unfold, true, true, cx);
8471 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8472 s.select_ranges(new_selection_ranges);
8473 });
8474 }
8475
8476 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8477 self.add_selection(true, cx);
8478 }
8479
8480 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8481 self.add_selection(false, cx);
8482 }
8483
8484 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8485 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8486 let mut selections = self.selections.all::<Point>(cx);
8487 let text_layout_details = self.text_layout_details(cx);
8488 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8489 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8490 let range = oldest_selection.display_range(&display_map).sorted();
8491
8492 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8493 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8494 let positions = start_x.min(end_x)..start_x.max(end_x);
8495
8496 selections.clear();
8497 let mut stack = Vec::new();
8498 for row in range.start.row().0..=range.end.row().0 {
8499 if let Some(selection) = self.selections.build_columnar_selection(
8500 &display_map,
8501 DisplayRow(row),
8502 &positions,
8503 oldest_selection.reversed,
8504 &text_layout_details,
8505 ) {
8506 stack.push(selection.id);
8507 selections.push(selection);
8508 }
8509 }
8510
8511 if above {
8512 stack.reverse();
8513 }
8514
8515 AddSelectionsState { above, stack }
8516 });
8517
8518 let last_added_selection = *state.stack.last().unwrap();
8519 let mut new_selections = Vec::new();
8520 if above == state.above {
8521 let end_row = if above {
8522 DisplayRow(0)
8523 } else {
8524 display_map.max_point().row()
8525 };
8526
8527 'outer: for selection in selections {
8528 if selection.id == last_added_selection {
8529 let range = selection.display_range(&display_map).sorted();
8530 debug_assert_eq!(range.start.row(), range.end.row());
8531 let mut row = range.start.row();
8532 let positions =
8533 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8534 px(start)..px(end)
8535 } else {
8536 let start_x =
8537 display_map.x_for_display_point(range.start, &text_layout_details);
8538 let end_x =
8539 display_map.x_for_display_point(range.end, &text_layout_details);
8540 start_x.min(end_x)..start_x.max(end_x)
8541 };
8542
8543 while row != end_row {
8544 if above {
8545 row.0 -= 1;
8546 } else {
8547 row.0 += 1;
8548 }
8549
8550 if let Some(new_selection) = self.selections.build_columnar_selection(
8551 &display_map,
8552 row,
8553 &positions,
8554 selection.reversed,
8555 &text_layout_details,
8556 ) {
8557 state.stack.push(new_selection.id);
8558 if above {
8559 new_selections.push(new_selection);
8560 new_selections.push(selection);
8561 } else {
8562 new_selections.push(selection);
8563 new_selections.push(new_selection);
8564 }
8565
8566 continue 'outer;
8567 }
8568 }
8569 }
8570
8571 new_selections.push(selection);
8572 }
8573 } else {
8574 new_selections = selections;
8575 new_selections.retain(|s| s.id != last_added_selection);
8576 state.stack.pop();
8577 }
8578
8579 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8580 s.select(new_selections);
8581 });
8582 if state.stack.len() > 1 {
8583 self.add_selections_state = Some(state);
8584 }
8585 }
8586
8587 pub fn select_next_match_internal(
8588 &mut self,
8589 display_map: &DisplaySnapshot,
8590 replace_newest: bool,
8591 autoscroll: Option<Autoscroll>,
8592 cx: &mut ViewContext<Self>,
8593 ) -> Result<()> {
8594 fn select_next_match_ranges(
8595 this: &mut Editor,
8596 range: Range<usize>,
8597 replace_newest: bool,
8598 auto_scroll: Option<Autoscroll>,
8599 cx: &mut ViewContext<Editor>,
8600 ) {
8601 this.unfold_ranges(&[range.clone()], false, true, cx);
8602 this.change_selections(auto_scroll, cx, |s| {
8603 if replace_newest {
8604 s.delete(s.newest_anchor().id);
8605 }
8606 s.insert_range(range.clone());
8607 });
8608 }
8609
8610 let buffer = &display_map.buffer_snapshot;
8611 let mut selections = self.selections.all::<usize>(cx);
8612 if let Some(mut select_next_state) = self.select_next_state.take() {
8613 let query = &select_next_state.query;
8614 if !select_next_state.done {
8615 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8616 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8617 let mut next_selected_range = None;
8618
8619 let bytes_after_last_selection =
8620 buffer.bytes_in_range(last_selection.end..buffer.len());
8621 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8622 let query_matches = query
8623 .stream_find_iter(bytes_after_last_selection)
8624 .map(|result| (last_selection.end, result))
8625 .chain(
8626 query
8627 .stream_find_iter(bytes_before_first_selection)
8628 .map(|result| (0, result)),
8629 );
8630
8631 for (start_offset, query_match) in query_matches {
8632 let query_match = query_match.unwrap(); // can only fail due to I/O
8633 let offset_range =
8634 start_offset + query_match.start()..start_offset + query_match.end();
8635 let display_range = offset_range.start.to_display_point(display_map)
8636 ..offset_range.end.to_display_point(display_map);
8637
8638 if !select_next_state.wordwise
8639 || (!movement::is_inside_word(display_map, display_range.start)
8640 && !movement::is_inside_word(display_map, display_range.end))
8641 {
8642 // TODO: This is n^2, because we might check all the selections
8643 if !selections
8644 .iter()
8645 .any(|selection| selection.range().overlaps(&offset_range))
8646 {
8647 next_selected_range = Some(offset_range);
8648 break;
8649 }
8650 }
8651 }
8652
8653 if let Some(next_selected_range) = next_selected_range {
8654 select_next_match_ranges(
8655 self,
8656 next_selected_range,
8657 replace_newest,
8658 autoscroll,
8659 cx,
8660 );
8661 } else {
8662 select_next_state.done = true;
8663 }
8664 }
8665
8666 self.select_next_state = Some(select_next_state);
8667 } else {
8668 let mut only_carets = true;
8669 let mut same_text_selected = true;
8670 let mut selected_text = None;
8671
8672 let mut selections_iter = selections.iter().peekable();
8673 while let Some(selection) = selections_iter.next() {
8674 if selection.start != selection.end {
8675 only_carets = false;
8676 }
8677
8678 if same_text_selected {
8679 if selected_text.is_none() {
8680 selected_text =
8681 Some(buffer.text_for_range(selection.range()).collect::<String>());
8682 }
8683
8684 if let Some(next_selection) = selections_iter.peek() {
8685 if next_selection.range().len() == selection.range().len() {
8686 let next_selected_text = buffer
8687 .text_for_range(next_selection.range())
8688 .collect::<String>();
8689 if Some(next_selected_text) != selected_text {
8690 same_text_selected = false;
8691 selected_text = None;
8692 }
8693 } else {
8694 same_text_selected = false;
8695 selected_text = None;
8696 }
8697 }
8698 }
8699 }
8700
8701 if only_carets {
8702 for selection in &mut selections {
8703 let word_range = movement::surrounding_word(
8704 display_map,
8705 selection.start.to_display_point(display_map),
8706 );
8707 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8708 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8709 selection.goal = SelectionGoal::None;
8710 selection.reversed = false;
8711 select_next_match_ranges(
8712 self,
8713 selection.start..selection.end,
8714 replace_newest,
8715 autoscroll,
8716 cx,
8717 );
8718 }
8719
8720 if selections.len() == 1 {
8721 let selection = selections
8722 .last()
8723 .expect("ensured that there's only one selection");
8724 let query = buffer
8725 .text_for_range(selection.start..selection.end)
8726 .collect::<String>();
8727 let is_empty = query.is_empty();
8728 let select_state = SelectNextState {
8729 query: AhoCorasick::new(&[query])?,
8730 wordwise: true,
8731 done: is_empty,
8732 };
8733 self.select_next_state = Some(select_state);
8734 } else {
8735 self.select_next_state = None;
8736 }
8737 } else if let Some(selected_text) = selected_text {
8738 self.select_next_state = Some(SelectNextState {
8739 query: AhoCorasick::new(&[selected_text])?,
8740 wordwise: false,
8741 done: false,
8742 });
8743 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8744 }
8745 }
8746 Ok(())
8747 }
8748
8749 pub fn select_all_matches(
8750 &mut self,
8751 _action: &SelectAllMatches,
8752 cx: &mut ViewContext<Self>,
8753 ) -> Result<()> {
8754 self.push_to_selection_history();
8755 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8756
8757 self.select_next_match_internal(&display_map, false, None, cx)?;
8758 let Some(select_next_state) = self.select_next_state.as_mut() else {
8759 return Ok(());
8760 };
8761 if select_next_state.done {
8762 return Ok(());
8763 }
8764
8765 let mut new_selections = self.selections.all::<usize>(cx);
8766
8767 let buffer = &display_map.buffer_snapshot;
8768 let query_matches = select_next_state
8769 .query
8770 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8771
8772 for query_match in query_matches {
8773 let query_match = query_match.unwrap(); // can only fail due to I/O
8774 let offset_range = query_match.start()..query_match.end();
8775 let display_range = offset_range.start.to_display_point(&display_map)
8776 ..offset_range.end.to_display_point(&display_map);
8777
8778 if !select_next_state.wordwise
8779 || (!movement::is_inside_word(&display_map, display_range.start)
8780 && !movement::is_inside_word(&display_map, display_range.end))
8781 {
8782 self.selections.change_with(cx, |selections| {
8783 new_selections.push(Selection {
8784 id: selections.new_selection_id(),
8785 start: offset_range.start,
8786 end: offset_range.end,
8787 reversed: false,
8788 goal: SelectionGoal::None,
8789 });
8790 });
8791 }
8792 }
8793
8794 new_selections.sort_by_key(|selection| selection.start);
8795 let mut ix = 0;
8796 while ix + 1 < new_selections.len() {
8797 let current_selection = &new_selections[ix];
8798 let next_selection = &new_selections[ix + 1];
8799 if current_selection.range().overlaps(&next_selection.range()) {
8800 if current_selection.id < next_selection.id {
8801 new_selections.remove(ix + 1);
8802 } else {
8803 new_selections.remove(ix);
8804 }
8805 } else {
8806 ix += 1;
8807 }
8808 }
8809
8810 select_next_state.done = true;
8811 self.unfold_ranges(
8812 &new_selections
8813 .iter()
8814 .map(|selection| selection.range())
8815 .collect::<Vec<_>>(),
8816 false,
8817 false,
8818 cx,
8819 );
8820 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8821 selections.select(new_selections)
8822 });
8823
8824 Ok(())
8825 }
8826
8827 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8828 self.push_to_selection_history();
8829 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8830 self.select_next_match_internal(
8831 &display_map,
8832 action.replace_newest,
8833 Some(Autoscroll::newest()),
8834 cx,
8835 )?;
8836 Ok(())
8837 }
8838
8839 pub fn select_previous(
8840 &mut self,
8841 action: &SelectPrevious,
8842 cx: &mut ViewContext<Self>,
8843 ) -> Result<()> {
8844 self.push_to_selection_history();
8845 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8846 let buffer = &display_map.buffer_snapshot;
8847 let mut selections = self.selections.all::<usize>(cx);
8848 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8849 let query = &select_prev_state.query;
8850 if !select_prev_state.done {
8851 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8852 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8853 let mut next_selected_range = None;
8854 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8855 let bytes_before_last_selection =
8856 buffer.reversed_bytes_in_range(0..last_selection.start);
8857 let bytes_after_first_selection =
8858 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8859 let query_matches = query
8860 .stream_find_iter(bytes_before_last_selection)
8861 .map(|result| (last_selection.start, result))
8862 .chain(
8863 query
8864 .stream_find_iter(bytes_after_first_selection)
8865 .map(|result| (buffer.len(), result)),
8866 );
8867 for (end_offset, query_match) in query_matches {
8868 let query_match = query_match.unwrap(); // can only fail due to I/O
8869 let offset_range =
8870 end_offset - query_match.end()..end_offset - query_match.start();
8871 let display_range = offset_range.start.to_display_point(&display_map)
8872 ..offset_range.end.to_display_point(&display_map);
8873
8874 if !select_prev_state.wordwise
8875 || (!movement::is_inside_word(&display_map, display_range.start)
8876 && !movement::is_inside_word(&display_map, display_range.end))
8877 {
8878 next_selected_range = Some(offset_range);
8879 break;
8880 }
8881 }
8882
8883 if let Some(next_selected_range) = next_selected_range {
8884 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8885 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8886 if action.replace_newest {
8887 s.delete(s.newest_anchor().id);
8888 }
8889 s.insert_range(next_selected_range);
8890 });
8891 } else {
8892 select_prev_state.done = true;
8893 }
8894 }
8895
8896 self.select_prev_state = Some(select_prev_state);
8897 } else {
8898 let mut only_carets = true;
8899 let mut same_text_selected = true;
8900 let mut selected_text = None;
8901
8902 let mut selections_iter = selections.iter().peekable();
8903 while let Some(selection) = selections_iter.next() {
8904 if selection.start != selection.end {
8905 only_carets = false;
8906 }
8907
8908 if same_text_selected {
8909 if selected_text.is_none() {
8910 selected_text =
8911 Some(buffer.text_for_range(selection.range()).collect::<String>());
8912 }
8913
8914 if let Some(next_selection) = selections_iter.peek() {
8915 if next_selection.range().len() == selection.range().len() {
8916 let next_selected_text = buffer
8917 .text_for_range(next_selection.range())
8918 .collect::<String>();
8919 if Some(next_selected_text) != selected_text {
8920 same_text_selected = false;
8921 selected_text = None;
8922 }
8923 } else {
8924 same_text_selected = false;
8925 selected_text = None;
8926 }
8927 }
8928 }
8929 }
8930
8931 if only_carets {
8932 for selection in &mut selections {
8933 let word_range = movement::surrounding_word(
8934 &display_map,
8935 selection.start.to_display_point(&display_map),
8936 );
8937 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8938 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8939 selection.goal = SelectionGoal::None;
8940 selection.reversed = false;
8941 }
8942 if selections.len() == 1 {
8943 let selection = selections
8944 .last()
8945 .expect("ensured that there's only one selection");
8946 let query = buffer
8947 .text_for_range(selection.start..selection.end)
8948 .collect::<String>();
8949 let is_empty = query.is_empty();
8950 let select_state = SelectNextState {
8951 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8952 wordwise: true,
8953 done: is_empty,
8954 };
8955 self.select_prev_state = Some(select_state);
8956 } else {
8957 self.select_prev_state = None;
8958 }
8959
8960 self.unfold_ranges(
8961 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8962 false,
8963 true,
8964 cx,
8965 );
8966 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8967 s.select(selections);
8968 });
8969 } else if let Some(selected_text) = selected_text {
8970 self.select_prev_state = Some(SelectNextState {
8971 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8972 wordwise: false,
8973 done: false,
8974 });
8975 self.select_previous(action, cx)?;
8976 }
8977 }
8978 Ok(())
8979 }
8980
8981 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8982 if self.read_only(cx) {
8983 return;
8984 }
8985 let text_layout_details = &self.text_layout_details(cx);
8986 self.transact(cx, |this, cx| {
8987 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8988 let mut edits = Vec::new();
8989 let mut selection_edit_ranges = Vec::new();
8990 let mut last_toggled_row = None;
8991 let snapshot = this.buffer.read(cx).read(cx);
8992 let empty_str: Arc<str> = Arc::default();
8993 let mut suffixes_inserted = Vec::new();
8994 let ignore_indent = action.ignore_indent;
8995
8996 fn comment_prefix_range(
8997 snapshot: &MultiBufferSnapshot,
8998 row: MultiBufferRow,
8999 comment_prefix: &str,
9000 comment_prefix_whitespace: &str,
9001 ignore_indent: bool,
9002 ) -> Range<Point> {
9003 let indent_size = if ignore_indent {
9004 0
9005 } else {
9006 snapshot.indent_size_for_line(row).len
9007 };
9008
9009 let start = Point::new(row.0, indent_size);
9010
9011 let mut line_bytes = snapshot
9012 .bytes_in_range(start..snapshot.max_point())
9013 .flatten()
9014 .copied();
9015
9016 // If this line currently begins with the line comment prefix, then record
9017 // the range containing the prefix.
9018 if line_bytes
9019 .by_ref()
9020 .take(comment_prefix.len())
9021 .eq(comment_prefix.bytes())
9022 {
9023 // Include any whitespace that matches the comment prefix.
9024 let matching_whitespace_len = line_bytes
9025 .zip(comment_prefix_whitespace.bytes())
9026 .take_while(|(a, b)| a == b)
9027 .count() as u32;
9028 let end = Point::new(
9029 start.row,
9030 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
9031 );
9032 start..end
9033 } else {
9034 start..start
9035 }
9036 }
9037
9038 fn comment_suffix_range(
9039 snapshot: &MultiBufferSnapshot,
9040 row: MultiBufferRow,
9041 comment_suffix: &str,
9042 comment_suffix_has_leading_space: bool,
9043 ) -> Range<Point> {
9044 let end = Point::new(row.0, snapshot.line_len(row));
9045 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
9046
9047 let mut line_end_bytes = snapshot
9048 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
9049 .flatten()
9050 .copied();
9051
9052 let leading_space_len = if suffix_start_column > 0
9053 && line_end_bytes.next() == Some(b' ')
9054 && comment_suffix_has_leading_space
9055 {
9056 1
9057 } else {
9058 0
9059 };
9060
9061 // If this line currently begins with the line comment prefix, then record
9062 // the range containing the prefix.
9063 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
9064 let start = Point::new(end.row, suffix_start_column - leading_space_len);
9065 start..end
9066 } else {
9067 end..end
9068 }
9069 }
9070
9071 // TODO: Handle selections that cross excerpts
9072 for selection in &mut selections {
9073 let start_column = snapshot
9074 .indent_size_for_line(MultiBufferRow(selection.start.row))
9075 .len;
9076 let language = if let Some(language) =
9077 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
9078 {
9079 language
9080 } else {
9081 continue;
9082 };
9083
9084 selection_edit_ranges.clear();
9085
9086 // If multiple selections contain a given row, avoid processing that
9087 // row more than once.
9088 let mut start_row = MultiBufferRow(selection.start.row);
9089 if last_toggled_row == Some(start_row) {
9090 start_row = start_row.next_row();
9091 }
9092 let end_row =
9093 if selection.end.row > selection.start.row && selection.end.column == 0 {
9094 MultiBufferRow(selection.end.row - 1)
9095 } else {
9096 MultiBufferRow(selection.end.row)
9097 };
9098 last_toggled_row = Some(end_row);
9099
9100 if start_row > end_row {
9101 continue;
9102 }
9103
9104 // If the language has line comments, toggle those.
9105 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
9106
9107 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
9108 if ignore_indent {
9109 full_comment_prefixes = full_comment_prefixes
9110 .into_iter()
9111 .map(|s| Arc::from(s.trim_end()))
9112 .collect();
9113 }
9114
9115 if !full_comment_prefixes.is_empty() {
9116 let first_prefix = full_comment_prefixes
9117 .first()
9118 .expect("prefixes is non-empty");
9119 let prefix_trimmed_lengths = full_comment_prefixes
9120 .iter()
9121 .map(|p| p.trim_end_matches(' ').len())
9122 .collect::<SmallVec<[usize; 4]>>();
9123
9124 let mut all_selection_lines_are_comments = true;
9125
9126 for row in start_row.0..=end_row.0 {
9127 let row = MultiBufferRow(row);
9128 if start_row < end_row && snapshot.is_line_blank(row) {
9129 continue;
9130 }
9131
9132 let prefix_range = full_comment_prefixes
9133 .iter()
9134 .zip(prefix_trimmed_lengths.iter().copied())
9135 .map(|(prefix, trimmed_prefix_len)| {
9136 comment_prefix_range(
9137 snapshot.deref(),
9138 row,
9139 &prefix[..trimmed_prefix_len],
9140 &prefix[trimmed_prefix_len..],
9141 ignore_indent,
9142 )
9143 })
9144 .max_by_key(|range| range.end.column - range.start.column)
9145 .expect("prefixes is non-empty");
9146
9147 if prefix_range.is_empty() {
9148 all_selection_lines_are_comments = false;
9149 }
9150
9151 selection_edit_ranges.push(prefix_range);
9152 }
9153
9154 if all_selection_lines_are_comments {
9155 edits.extend(
9156 selection_edit_ranges
9157 .iter()
9158 .cloned()
9159 .map(|range| (range, empty_str.clone())),
9160 );
9161 } else {
9162 let min_column = selection_edit_ranges
9163 .iter()
9164 .map(|range| range.start.column)
9165 .min()
9166 .unwrap_or(0);
9167 edits.extend(selection_edit_ranges.iter().map(|range| {
9168 let position = Point::new(range.start.row, min_column);
9169 (position..position, first_prefix.clone())
9170 }));
9171 }
9172 } else if let Some((full_comment_prefix, comment_suffix)) =
9173 language.block_comment_delimiters()
9174 {
9175 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
9176 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
9177 let prefix_range = comment_prefix_range(
9178 snapshot.deref(),
9179 start_row,
9180 comment_prefix,
9181 comment_prefix_whitespace,
9182 ignore_indent,
9183 );
9184 let suffix_range = comment_suffix_range(
9185 snapshot.deref(),
9186 end_row,
9187 comment_suffix.trim_start_matches(' '),
9188 comment_suffix.starts_with(' '),
9189 );
9190
9191 if prefix_range.is_empty() || suffix_range.is_empty() {
9192 edits.push((
9193 prefix_range.start..prefix_range.start,
9194 full_comment_prefix.clone(),
9195 ));
9196 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9197 suffixes_inserted.push((end_row, comment_suffix.len()));
9198 } else {
9199 edits.push((prefix_range, empty_str.clone()));
9200 edits.push((suffix_range, empty_str.clone()));
9201 }
9202 } else {
9203 continue;
9204 }
9205 }
9206
9207 drop(snapshot);
9208 this.buffer.update(cx, |buffer, cx| {
9209 buffer.edit(edits, None, cx);
9210 });
9211
9212 // Adjust selections so that they end before any comment suffixes that
9213 // were inserted.
9214 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9215 let mut selections = this.selections.all::<Point>(cx);
9216 let snapshot = this.buffer.read(cx).read(cx);
9217 for selection in &mut selections {
9218 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9219 match row.cmp(&MultiBufferRow(selection.end.row)) {
9220 Ordering::Less => {
9221 suffixes_inserted.next();
9222 continue;
9223 }
9224 Ordering::Greater => break,
9225 Ordering::Equal => {
9226 if selection.end.column == snapshot.line_len(row) {
9227 if selection.is_empty() {
9228 selection.start.column -= suffix_len as u32;
9229 }
9230 selection.end.column -= suffix_len as u32;
9231 }
9232 break;
9233 }
9234 }
9235 }
9236 }
9237
9238 drop(snapshot);
9239 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9240
9241 let selections = this.selections.all::<Point>(cx);
9242 let selections_on_single_row = selections.windows(2).all(|selections| {
9243 selections[0].start.row == selections[1].start.row
9244 && selections[0].end.row == selections[1].end.row
9245 && selections[0].start.row == selections[0].end.row
9246 });
9247 let selections_selecting = selections
9248 .iter()
9249 .any(|selection| selection.start != selection.end);
9250 let advance_downwards = action.advance_downwards
9251 && selections_on_single_row
9252 && !selections_selecting
9253 && !matches!(this.mode, EditorMode::SingleLine { .. });
9254
9255 if advance_downwards {
9256 let snapshot = this.buffer.read(cx).snapshot(cx);
9257
9258 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9259 s.move_cursors_with(|display_snapshot, display_point, _| {
9260 let mut point = display_point.to_point(display_snapshot);
9261 point.row += 1;
9262 point = snapshot.clip_point(point, Bias::Left);
9263 let display_point = point.to_display_point(display_snapshot);
9264 let goal = SelectionGoal::HorizontalPosition(
9265 display_snapshot
9266 .x_for_display_point(display_point, text_layout_details)
9267 .into(),
9268 );
9269 (display_point, goal)
9270 })
9271 });
9272 }
9273 });
9274 }
9275
9276 pub fn select_enclosing_symbol(
9277 &mut self,
9278 _: &SelectEnclosingSymbol,
9279 cx: &mut ViewContext<Self>,
9280 ) {
9281 let buffer = self.buffer.read(cx).snapshot(cx);
9282 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9283
9284 fn update_selection(
9285 selection: &Selection<usize>,
9286 buffer_snap: &MultiBufferSnapshot,
9287 ) -> Option<Selection<usize>> {
9288 let cursor = selection.head();
9289 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9290 for symbol in symbols.iter().rev() {
9291 let start = symbol.range.start.to_offset(buffer_snap);
9292 let end = symbol.range.end.to_offset(buffer_snap);
9293 let new_range = start..end;
9294 if start < selection.start || end > selection.end {
9295 return Some(Selection {
9296 id: selection.id,
9297 start: new_range.start,
9298 end: new_range.end,
9299 goal: SelectionGoal::None,
9300 reversed: selection.reversed,
9301 });
9302 }
9303 }
9304 None
9305 }
9306
9307 let mut selected_larger_symbol = false;
9308 let new_selections = old_selections
9309 .iter()
9310 .map(|selection| match update_selection(selection, &buffer) {
9311 Some(new_selection) => {
9312 if new_selection.range() != selection.range() {
9313 selected_larger_symbol = true;
9314 }
9315 new_selection
9316 }
9317 None => selection.clone(),
9318 })
9319 .collect::<Vec<_>>();
9320
9321 if selected_larger_symbol {
9322 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9323 s.select(new_selections);
9324 });
9325 }
9326 }
9327
9328 pub fn select_larger_syntax_node(
9329 &mut self,
9330 _: &SelectLargerSyntaxNode,
9331 cx: &mut ViewContext<Self>,
9332 ) {
9333 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9334 let buffer = self.buffer.read(cx).snapshot(cx);
9335 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9336
9337 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9338 let mut selected_larger_node = false;
9339 let new_selections = old_selections
9340 .iter()
9341 .map(|selection| {
9342 let old_range = selection.start..selection.end;
9343 let mut new_range = old_range.clone();
9344 while let Some(containing_range) =
9345 buffer.range_for_syntax_ancestor(new_range.clone())
9346 {
9347 new_range = containing_range;
9348 if !display_map.intersects_fold(new_range.start)
9349 && !display_map.intersects_fold(new_range.end)
9350 {
9351 break;
9352 }
9353 }
9354
9355 selected_larger_node |= new_range != old_range;
9356 Selection {
9357 id: selection.id,
9358 start: new_range.start,
9359 end: new_range.end,
9360 goal: SelectionGoal::None,
9361 reversed: selection.reversed,
9362 }
9363 })
9364 .collect::<Vec<_>>();
9365
9366 if selected_larger_node {
9367 stack.push(old_selections);
9368 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9369 s.select(new_selections);
9370 });
9371 }
9372 self.select_larger_syntax_node_stack = stack;
9373 }
9374
9375 pub fn select_smaller_syntax_node(
9376 &mut self,
9377 _: &SelectSmallerSyntaxNode,
9378 cx: &mut ViewContext<Self>,
9379 ) {
9380 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9381 if let Some(selections) = stack.pop() {
9382 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9383 s.select(selections.to_vec());
9384 });
9385 }
9386 self.select_larger_syntax_node_stack = stack;
9387 }
9388
9389 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9390 if !EditorSettings::get_global(cx).gutter.runnables {
9391 self.clear_tasks();
9392 return Task::ready(());
9393 }
9394 let project = self.project.as_ref().map(Model::downgrade);
9395 cx.spawn(|this, mut cx| async move {
9396 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9397 let Some(project) = project.and_then(|p| p.upgrade()) else {
9398 return;
9399 };
9400 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9401 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9402 }) else {
9403 return;
9404 };
9405
9406 let hide_runnables = project
9407 .update(&mut cx, |project, cx| {
9408 // Do not display any test indicators in non-dev server remote projects.
9409 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9410 })
9411 .unwrap_or(true);
9412 if hide_runnables {
9413 return;
9414 }
9415 let new_rows =
9416 cx.background_executor()
9417 .spawn({
9418 let snapshot = display_snapshot.clone();
9419 async move {
9420 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9421 }
9422 })
9423 .await;
9424 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9425
9426 this.update(&mut cx, |this, _| {
9427 this.clear_tasks();
9428 for (key, value) in rows {
9429 this.insert_tasks(key, value);
9430 }
9431 })
9432 .ok();
9433 })
9434 }
9435 fn fetch_runnable_ranges(
9436 snapshot: &DisplaySnapshot,
9437 range: Range<Anchor>,
9438 ) -> Vec<language::RunnableRange> {
9439 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9440 }
9441
9442 fn runnable_rows(
9443 project: Model<Project>,
9444 snapshot: DisplaySnapshot,
9445 runnable_ranges: Vec<RunnableRange>,
9446 mut cx: AsyncWindowContext,
9447 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9448 runnable_ranges
9449 .into_iter()
9450 .filter_map(|mut runnable| {
9451 let tasks = cx
9452 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9453 .ok()?;
9454 if tasks.is_empty() {
9455 return None;
9456 }
9457
9458 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9459
9460 let row = snapshot
9461 .buffer_snapshot
9462 .buffer_line_for_row(MultiBufferRow(point.row))?
9463 .1
9464 .start
9465 .row;
9466
9467 let context_range =
9468 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9469 Some((
9470 (runnable.buffer_id, row),
9471 RunnableTasks {
9472 templates: tasks,
9473 offset: MultiBufferOffset(runnable.run_range.start),
9474 context_range,
9475 column: point.column,
9476 extra_variables: runnable.extra_captures,
9477 },
9478 ))
9479 })
9480 .collect()
9481 }
9482
9483 fn templates_with_tags(
9484 project: &Model<Project>,
9485 runnable: &mut Runnable,
9486 cx: &WindowContext<'_>,
9487 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9488 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9489 let (worktree_id, file) = project
9490 .buffer_for_id(runnable.buffer, cx)
9491 .and_then(|buffer| buffer.read(cx).file())
9492 .map(|file| (file.worktree_id(cx), file.clone()))
9493 .unzip();
9494
9495 (
9496 project.task_store().read(cx).task_inventory().cloned(),
9497 worktree_id,
9498 file,
9499 )
9500 });
9501
9502 let tags = mem::take(&mut runnable.tags);
9503 let mut tags: Vec<_> = tags
9504 .into_iter()
9505 .flat_map(|tag| {
9506 let tag = tag.0.clone();
9507 inventory
9508 .as_ref()
9509 .into_iter()
9510 .flat_map(|inventory| {
9511 inventory.read(cx).list_tasks(
9512 file.clone(),
9513 Some(runnable.language.clone()),
9514 worktree_id,
9515 cx,
9516 )
9517 })
9518 .filter(move |(_, template)| {
9519 template.tags.iter().any(|source_tag| source_tag == &tag)
9520 })
9521 })
9522 .sorted_by_key(|(kind, _)| kind.to_owned())
9523 .collect();
9524 if let Some((leading_tag_source, _)) = tags.first() {
9525 // Strongest source wins; if we have worktree tag binding, prefer that to
9526 // global and language bindings;
9527 // if we have a global binding, prefer that to language binding.
9528 let first_mismatch = tags
9529 .iter()
9530 .position(|(tag_source, _)| tag_source != leading_tag_source);
9531 if let Some(index) = first_mismatch {
9532 tags.truncate(index);
9533 }
9534 }
9535
9536 tags
9537 }
9538
9539 pub fn move_to_enclosing_bracket(
9540 &mut self,
9541 _: &MoveToEnclosingBracket,
9542 cx: &mut ViewContext<Self>,
9543 ) {
9544 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9545 s.move_offsets_with(|snapshot, selection| {
9546 let Some(enclosing_bracket_ranges) =
9547 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9548 else {
9549 return;
9550 };
9551
9552 let mut best_length = usize::MAX;
9553 let mut best_inside = false;
9554 let mut best_in_bracket_range = false;
9555 let mut best_destination = None;
9556 for (open, close) in enclosing_bracket_ranges {
9557 let close = close.to_inclusive();
9558 let length = close.end() - open.start;
9559 let inside = selection.start >= open.end && selection.end <= *close.start();
9560 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9561 || close.contains(&selection.head());
9562
9563 // If best is next to a bracket and current isn't, skip
9564 if !in_bracket_range && best_in_bracket_range {
9565 continue;
9566 }
9567
9568 // Prefer smaller lengths unless best is inside and current isn't
9569 if length > best_length && (best_inside || !inside) {
9570 continue;
9571 }
9572
9573 best_length = length;
9574 best_inside = inside;
9575 best_in_bracket_range = in_bracket_range;
9576 best_destination = Some(
9577 if close.contains(&selection.start) && close.contains(&selection.end) {
9578 if inside {
9579 open.end
9580 } else {
9581 open.start
9582 }
9583 } else if inside {
9584 *close.start()
9585 } else {
9586 *close.end()
9587 },
9588 );
9589 }
9590
9591 if let Some(destination) = best_destination {
9592 selection.collapse_to(destination, SelectionGoal::None);
9593 }
9594 })
9595 });
9596 }
9597
9598 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9599 self.end_selection(cx);
9600 self.selection_history.mode = SelectionHistoryMode::Undoing;
9601 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9602 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9603 self.select_next_state = entry.select_next_state;
9604 self.select_prev_state = entry.select_prev_state;
9605 self.add_selections_state = entry.add_selections_state;
9606 self.request_autoscroll(Autoscroll::newest(), cx);
9607 }
9608 self.selection_history.mode = SelectionHistoryMode::Normal;
9609 }
9610
9611 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9612 self.end_selection(cx);
9613 self.selection_history.mode = SelectionHistoryMode::Redoing;
9614 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9615 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9616 self.select_next_state = entry.select_next_state;
9617 self.select_prev_state = entry.select_prev_state;
9618 self.add_selections_state = entry.add_selections_state;
9619 self.request_autoscroll(Autoscroll::newest(), cx);
9620 }
9621 self.selection_history.mode = SelectionHistoryMode::Normal;
9622 }
9623
9624 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9625 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9626 }
9627
9628 pub fn expand_excerpts_down(
9629 &mut self,
9630 action: &ExpandExcerptsDown,
9631 cx: &mut ViewContext<Self>,
9632 ) {
9633 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9634 }
9635
9636 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9637 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9638 }
9639
9640 pub fn expand_excerpts_for_direction(
9641 &mut self,
9642 lines: u32,
9643 direction: ExpandExcerptDirection,
9644 cx: &mut ViewContext<Self>,
9645 ) {
9646 let selections = self.selections.disjoint_anchors();
9647
9648 let lines = if lines == 0 {
9649 EditorSettings::get_global(cx).expand_excerpt_lines
9650 } else {
9651 lines
9652 };
9653
9654 self.buffer.update(cx, |buffer, cx| {
9655 buffer.expand_excerpts(
9656 selections
9657 .iter()
9658 .map(|selection| selection.head().excerpt_id)
9659 .dedup(),
9660 lines,
9661 direction,
9662 cx,
9663 )
9664 })
9665 }
9666
9667 pub fn expand_excerpt(
9668 &mut self,
9669 excerpt: ExcerptId,
9670 direction: ExpandExcerptDirection,
9671 cx: &mut ViewContext<Self>,
9672 ) {
9673 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9674 self.buffer.update(cx, |buffer, cx| {
9675 buffer.expand_excerpts([excerpt], lines, direction, cx)
9676 })
9677 }
9678
9679 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9680 self.go_to_diagnostic_impl(Direction::Next, cx)
9681 }
9682
9683 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9684 self.go_to_diagnostic_impl(Direction::Prev, cx)
9685 }
9686
9687 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9688 let buffer = self.buffer.read(cx).snapshot(cx);
9689 let selection = self.selections.newest::<usize>(cx);
9690
9691 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9692 if direction == Direction::Next {
9693 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9694 let (group_id, jump_to) = popover.activation_info();
9695 if self.activate_diagnostics(group_id, cx) {
9696 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9697 let mut new_selection = s.newest_anchor().clone();
9698 new_selection.collapse_to(jump_to, SelectionGoal::None);
9699 s.select_anchors(vec![new_selection.clone()]);
9700 });
9701 }
9702 return;
9703 }
9704 }
9705
9706 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9707 active_diagnostics
9708 .primary_range
9709 .to_offset(&buffer)
9710 .to_inclusive()
9711 });
9712 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9713 if active_primary_range.contains(&selection.head()) {
9714 *active_primary_range.start()
9715 } else {
9716 selection.head()
9717 }
9718 } else {
9719 selection.head()
9720 };
9721 let snapshot = self.snapshot(cx);
9722 loop {
9723 let diagnostics = if direction == Direction::Prev {
9724 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9725 } else {
9726 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9727 }
9728 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9729 let group = diagnostics
9730 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9731 // be sorted in a stable way
9732 // skip until we are at current active diagnostic, if it exists
9733 .skip_while(|entry| {
9734 (match direction {
9735 Direction::Prev => entry.range.start >= search_start,
9736 Direction::Next => entry.range.start <= search_start,
9737 }) && self
9738 .active_diagnostics
9739 .as_ref()
9740 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9741 })
9742 .find_map(|entry| {
9743 if entry.diagnostic.is_primary
9744 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9745 && !entry.range.is_empty()
9746 // if we match with the active diagnostic, skip it
9747 && Some(entry.diagnostic.group_id)
9748 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9749 {
9750 Some((entry.range, entry.diagnostic.group_id))
9751 } else {
9752 None
9753 }
9754 });
9755
9756 if let Some((primary_range, group_id)) = group {
9757 if self.activate_diagnostics(group_id, cx) {
9758 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9759 s.select(vec![Selection {
9760 id: selection.id,
9761 start: primary_range.start,
9762 end: primary_range.start,
9763 reversed: false,
9764 goal: SelectionGoal::None,
9765 }]);
9766 });
9767 }
9768 break;
9769 } else {
9770 // Cycle around to the start of the buffer, potentially moving back to the start of
9771 // the currently active diagnostic.
9772 active_primary_range.take();
9773 if direction == Direction::Prev {
9774 if search_start == buffer.len() {
9775 break;
9776 } else {
9777 search_start = buffer.len();
9778 }
9779 } else if search_start == 0 {
9780 break;
9781 } else {
9782 search_start = 0;
9783 }
9784 }
9785 }
9786 }
9787
9788 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9789 let snapshot = self
9790 .display_map
9791 .update(cx, |display_map, cx| display_map.snapshot(cx));
9792 let selection = self.selections.newest::<Point>(cx);
9793 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9794 }
9795
9796 fn go_to_hunk_after_position(
9797 &mut self,
9798 snapshot: &DisplaySnapshot,
9799 position: Point,
9800 cx: &mut ViewContext<'_, Editor>,
9801 ) -> Option<MultiBufferDiffHunk> {
9802 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9803 snapshot,
9804 position,
9805 false,
9806 snapshot
9807 .buffer_snapshot
9808 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9809 cx,
9810 ) {
9811 return Some(hunk);
9812 }
9813
9814 let wrapped_point = Point::zero();
9815 self.go_to_next_hunk_in_direction(
9816 snapshot,
9817 wrapped_point,
9818 true,
9819 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9820 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9821 ),
9822 cx,
9823 )
9824 }
9825
9826 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9827 let snapshot = self
9828 .display_map
9829 .update(cx, |display_map, cx| display_map.snapshot(cx));
9830 let selection = self.selections.newest::<Point>(cx);
9831
9832 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9833 }
9834
9835 fn go_to_hunk_before_position(
9836 &mut self,
9837 snapshot: &DisplaySnapshot,
9838 position: Point,
9839 cx: &mut ViewContext<'_, Editor>,
9840 ) -> Option<MultiBufferDiffHunk> {
9841 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9842 snapshot,
9843 position,
9844 false,
9845 snapshot
9846 .buffer_snapshot
9847 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9848 cx,
9849 ) {
9850 return Some(hunk);
9851 }
9852
9853 let wrapped_point = snapshot.buffer_snapshot.max_point();
9854 self.go_to_next_hunk_in_direction(
9855 snapshot,
9856 wrapped_point,
9857 true,
9858 snapshot
9859 .buffer_snapshot
9860 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9861 cx,
9862 )
9863 }
9864
9865 fn go_to_next_hunk_in_direction(
9866 &mut self,
9867 snapshot: &DisplaySnapshot,
9868 initial_point: Point,
9869 is_wrapped: bool,
9870 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9871 cx: &mut ViewContext<Editor>,
9872 ) -> Option<MultiBufferDiffHunk> {
9873 let display_point = initial_point.to_display_point(snapshot);
9874 let mut hunks = hunks
9875 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9876 .filter(|(display_hunk, _)| {
9877 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9878 })
9879 .dedup();
9880
9881 if let Some((display_hunk, hunk)) = hunks.next() {
9882 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9883 let row = display_hunk.start_display_row();
9884 let point = DisplayPoint::new(row, 0);
9885 s.select_display_ranges([point..point]);
9886 });
9887
9888 Some(hunk)
9889 } else {
9890 None
9891 }
9892 }
9893
9894 pub fn go_to_definition(
9895 &mut self,
9896 _: &GoToDefinition,
9897 cx: &mut ViewContext<Self>,
9898 ) -> Task<Result<Navigated>> {
9899 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9900 cx.spawn(|editor, mut cx| async move {
9901 if definition.await? == Navigated::Yes {
9902 return Ok(Navigated::Yes);
9903 }
9904 match editor.update(&mut cx, |editor, cx| {
9905 editor.find_all_references(&FindAllReferences, cx)
9906 })? {
9907 Some(references) => references.await,
9908 None => Ok(Navigated::No),
9909 }
9910 })
9911 }
9912
9913 pub fn go_to_declaration(
9914 &mut self,
9915 _: &GoToDeclaration,
9916 cx: &mut ViewContext<Self>,
9917 ) -> Task<Result<Navigated>> {
9918 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9919 }
9920
9921 pub fn go_to_declaration_split(
9922 &mut self,
9923 _: &GoToDeclaration,
9924 cx: &mut ViewContext<Self>,
9925 ) -> Task<Result<Navigated>> {
9926 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9927 }
9928
9929 pub fn go_to_implementation(
9930 &mut self,
9931 _: &GoToImplementation,
9932 cx: &mut ViewContext<Self>,
9933 ) -> Task<Result<Navigated>> {
9934 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9935 }
9936
9937 pub fn go_to_implementation_split(
9938 &mut self,
9939 _: &GoToImplementationSplit,
9940 cx: &mut ViewContext<Self>,
9941 ) -> Task<Result<Navigated>> {
9942 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9943 }
9944
9945 pub fn go_to_type_definition(
9946 &mut self,
9947 _: &GoToTypeDefinition,
9948 cx: &mut ViewContext<Self>,
9949 ) -> Task<Result<Navigated>> {
9950 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9951 }
9952
9953 pub fn go_to_definition_split(
9954 &mut self,
9955 _: &GoToDefinitionSplit,
9956 cx: &mut ViewContext<Self>,
9957 ) -> Task<Result<Navigated>> {
9958 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9959 }
9960
9961 pub fn go_to_type_definition_split(
9962 &mut self,
9963 _: &GoToTypeDefinitionSplit,
9964 cx: &mut ViewContext<Self>,
9965 ) -> Task<Result<Navigated>> {
9966 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9967 }
9968
9969 fn go_to_definition_of_kind(
9970 &mut self,
9971 kind: GotoDefinitionKind,
9972 split: bool,
9973 cx: &mut ViewContext<Self>,
9974 ) -> Task<Result<Navigated>> {
9975 let Some(provider) = self.semantics_provider.clone() else {
9976 return Task::ready(Ok(Navigated::No));
9977 };
9978 let head = self.selections.newest::<usize>(cx).head();
9979 let buffer = self.buffer.read(cx);
9980 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9981 text_anchor
9982 } else {
9983 return Task::ready(Ok(Navigated::No));
9984 };
9985
9986 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9987 return Task::ready(Ok(Navigated::No));
9988 };
9989
9990 cx.spawn(|editor, mut cx| async move {
9991 let definitions = definitions.await?;
9992 let navigated = editor
9993 .update(&mut cx, |editor, cx| {
9994 editor.navigate_to_hover_links(
9995 Some(kind),
9996 definitions
9997 .into_iter()
9998 .filter(|location| {
9999 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
10000 })
10001 .map(HoverLink::Text)
10002 .collect::<Vec<_>>(),
10003 split,
10004 cx,
10005 )
10006 })?
10007 .await?;
10008 anyhow::Ok(navigated)
10009 })
10010 }
10011
10012 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
10013 let position = self.selections.newest_anchor().head();
10014 let Some((buffer, buffer_position)) =
10015 self.buffer.read(cx).text_anchor_for_position(position, cx)
10016 else {
10017 return;
10018 };
10019
10020 cx.spawn(|editor, mut cx| async move {
10021 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
10022 editor.update(&mut cx, |_, cx| {
10023 cx.open_url(&url);
10024 })
10025 } else {
10026 Ok(())
10027 }
10028 })
10029 .detach();
10030 }
10031
10032 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
10033 let Some(workspace) = self.workspace() else {
10034 return;
10035 };
10036
10037 let position = self.selections.newest_anchor().head();
10038
10039 let Some((buffer, buffer_position)) =
10040 self.buffer.read(cx).text_anchor_for_position(position, cx)
10041 else {
10042 return;
10043 };
10044
10045 let project = self.project.clone();
10046
10047 cx.spawn(|_, mut cx| async move {
10048 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
10049
10050 if let Some((_, path)) = result {
10051 workspace
10052 .update(&mut cx, |workspace, cx| {
10053 workspace.open_resolved_path(path, cx)
10054 })?
10055 .await?;
10056 }
10057 anyhow::Ok(())
10058 })
10059 .detach();
10060 }
10061
10062 pub(crate) fn navigate_to_hover_links(
10063 &mut self,
10064 kind: Option<GotoDefinitionKind>,
10065 mut definitions: Vec<HoverLink>,
10066 split: bool,
10067 cx: &mut ViewContext<Editor>,
10068 ) -> Task<Result<Navigated>> {
10069 // If there is one definition, just open it directly
10070 if definitions.len() == 1 {
10071 let definition = definitions.pop().unwrap();
10072
10073 enum TargetTaskResult {
10074 Location(Option<Location>),
10075 AlreadyNavigated,
10076 }
10077
10078 let target_task = match definition {
10079 HoverLink::Text(link) => {
10080 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
10081 }
10082 HoverLink::InlayHint(lsp_location, server_id) => {
10083 let computation = self.compute_target_location(lsp_location, server_id, cx);
10084 cx.background_executor().spawn(async move {
10085 let location = computation.await?;
10086 Ok(TargetTaskResult::Location(location))
10087 })
10088 }
10089 HoverLink::Url(url) => {
10090 cx.open_url(&url);
10091 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
10092 }
10093 HoverLink::File(path) => {
10094 if let Some(workspace) = self.workspace() {
10095 cx.spawn(|_, mut cx| async move {
10096 workspace
10097 .update(&mut cx, |workspace, cx| {
10098 workspace.open_resolved_path(path, cx)
10099 })?
10100 .await
10101 .map(|_| TargetTaskResult::AlreadyNavigated)
10102 })
10103 } else {
10104 Task::ready(Ok(TargetTaskResult::Location(None)))
10105 }
10106 }
10107 };
10108 cx.spawn(|editor, mut cx| async move {
10109 let target = match target_task.await.context("target resolution task")? {
10110 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
10111 TargetTaskResult::Location(None) => return Ok(Navigated::No),
10112 TargetTaskResult::Location(Some(target)) => target,
10113 };
10114
10115 editor.update(&mut cx, |editor, cx| {
10116 let Some(workspace) = editor.workspace() else {
10117 return Navigated::No;
10118 };
10119 let pane = workspace.read(cx).active_pane().clone();
10120
10121 let range = target.range.to_offset(target.buffer.read(cx));
10122 let range = editor.range_for_match(&range);
10123
10124 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
10125 let buffer = target.buffer.read(cx);
10126 let range = check_multiline_range(buffer, range);
10127 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10128 s.select_ranges([range]);
10129 });
10130 } else {
10131 cx.window_context().defer(move |cx| {
10132 let target_editor: View<Self> =
10133 workspace.update(cx, |workspace, cx| {
10134 let pane = if split {
10135 workspace.adjacent_pane(cx)
10136 } else {
10137 workspace.active_pane().clone()
10138 };
10139
10140 workspace.open_project_item(
10141 pane,
10142 target.buffer.clone(),
10143 true,
10144 true,
10145 cx,
10146 )
10147 });
10148 target_editor.update(cx, |target_editor, cx| {
10149 // When selecting a definition in a different buffer, disable the nav history
10150 // to avoid creating a history entry at the previous cursor location.
10151 pane.update(cx, |pane, _| pane.disable_history());
10152 let buffer = target.buffer.read(cx);
10153 let range = check_multiline_range(buffer, range);
10154 target_editor.change_selections(
10155 Some(Autoscroll::focused()),
10156 cx,
10157 |s| {
10158 s.select_ranges([range]);
10159 },
10160 );
10161 pane.update(cx, |pane, _| pane.enable_history());
10162 });
10163 });
10164 }
10165 Navigated::Yes
10166 })
10167 })
10168 } else if !definitions.is_empty() {
10169 cx.spawn(|editor, mut cx| async move {
10170 let (title, location_tasks, workspace) = editor
10171 .update(&mut cx, |editor, cx| {
10172 let tab_kind = match kind {
10173 Some(GotoDefinitionKind::Implementation) => "Implementations",
10174 _ => "Definitions",
10175 };
10176 let title = definitions
10177 .iter()
10178 .find_map(|definition| match definition {
10179 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
10180 let buffer = origin.buffer.read(cx);
10181 format!(
10182 "{} for {}",
10183 tab_kind,
10184 buffer
10185 .text_for_range(origin.range.clone())
10186 .collect::<String>()
10187 )
10188 }),
10189 HoverLink::InlayHint(_, _) => None,
10190 HoverLink::Url(_) => None,
10191 HoverLink::File(_) => None,
10192 })
10193 .unwrap_or(tab_kind.to_string());
10194 let location_tasks = definitions
10195 .into_iter()
10196 .map(|definition| match definition {
10197 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
10198 HoverLink::InlayHint(lsp_location, server_id) => {
10199 editor.compute_target_location(lsp_location, server_id, cx)
10200 }
10201 HoverLink::Url(_) => Task::ready(Ok(None)),
10202 HoverLink::File(_) => Task::ready(Ok(None)),
10203 })
10204 .collect::<Vec<_>>();
10205 (title, location_tasks, editor.workspace().clone())
10206 })
10207 .context("location tasks preparation")?;
10208
10209 let locations = future::join_all(location_tasks)
10210 .await
10211 .into_iter()
10212 .filter_map(|location| location.transpose())
10213 .collect::<Result<_>>()
10214 .context("location tasks")?;
10215
10216 let Some(workspace) = workspace else {
10217 return Ok(Navigated::No);
10218 };
10219 let opened = workspace
10220 .update(&mut cx, |workspace, cx| {
10221 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10222 })
10223 .ok();
10224
10225 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10226 })
10227 } else {
10228 Task::ready(Ok(Navigated::No))
10229 }
10230 }
10231
10232 fn compute_target_location(
10233 &self,
10234 lsp_location: lsp::Location,
10235 server_id: LanguageServerId,
10236 cx: &mut ViewContext<Self>,
10237 ) -> Task<anyhow::Result<Option<Location>>> {
10238 let Some(project) = self.project.clone() else {
10239 return Task::Ready(Some(Ok(None)));
10240 };
10241
10242 cx.spawn(move |editor, mut cx| async move {
10243 let location_task = editor.update(&mut cx, |_, cx| {
10244 project.update(cx, |project, cx| {
10245 let language_server_name = project
10246 .language_server_statuses(cx)
10247 .find(|(id, _)| server_id == *id)
10248 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10249 language_server_name.map(|language_server_name| {
10250 project.open_local_buffer_via_lsp(
10251 lsp_location.uri.clone(),
10252 server_id,
10253 language_server_name,
10254 cx,
10255 )
10256 })
10257 })
10258 })?;
10259 let location = match location_task {
10260 Some(task) => Some({
10261 let target_buffer_handle = task.await.context("open local buffer")?;
10262 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10263 let target_start = target_buffer
10264 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10265 let target_end = target_buffer
10266 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10267 target_buffer.anchor_after(target_start)
10268 ..target_buffer.anchor_before(target_end)
10269 })?;
10270 Location {
10271 buffer: target_buffer_handle,
10272 range,
10273 }
10274 }),
10275 None => None,
10276 };
10277 Ok(location)
10278 })
10279 }
10280
10281 pub fn find_all_references(
10282 &mut self,
10283 _: &FindAllReferences,
10284 cx: &mut ViewContext<Self>,
10285 ) -> Option<Task<Result<Navigated>>> {
10286 let selection = self.selections.newest::<usize>(cx);
10287 let multi_buffer = self.buffer.read(cx);
10288 let head = selection.head();
10289
10290 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10291 let head_anchor = multi_buffer_snapshot.anchor_at(
10292 head,
10293 if head < selection.tail() {
10294 Bias::Right
10295 } else {
10296 Bias::Left
10297 },
10298 );
10299
10300 match self
10301 .find_all_references_task_sources
10302 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10303 {
10304 Ok(_) => {
10305 log::info!(
10306 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10307 );
10308 return None;
10309 }
10310 Err(i) => {
10311 self.find_all_references_task_sources.insert(i, head_anchor);
10312 }
10313 }
10314
10315 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10316 let workspace = self.workspace()?;
10317 let project = workspace.read(cx).project().clone();
10318 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10319 Some(cx.spawn(|editor, mut cx| async move {
10320 let _cleanup = defer({
10321 let mut cx = cx.clone();
10322 move || {
10323 let _ = editor.update(&mut cx, |editor, _| {
10324 if let Ok(i) =
10325 editor
10326 .find_all_references_task_sources
10327 .binary_search_by(|anchor| {
10328 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10329 })
10330 {
10331 editor.find_all_references_task_sources.remove(i);
10332 }
10333 });
10334 }
10335 });
10336
10337 let locations = references.await?;
10338 if locations.is_empty() {
10339 return anyhow::Ok(Navigated::No);
10340 }
10341
10342 workspace.update(&mut cx, |workspace, cx| {
10343 let title = locations
10344 .first()
10345 .as_ref()
10346 .map(|location| {
10347 let buffer = location.buffer.read(cx);
10348 format!(
10349 "References to `{}`",
10350 buffer
10351 .text_for_range(location.range.clone())
10352 .collect::<String>()
10353 )
10354 })
10355 .unwrap();
10356 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10357 Navigated::Yes
10358 })
10359 }))
10360 }
10361
10362 /// Opens a multibuffer with the given project locations in it
10363 pub fn open_locations_in_multibuffer(
10364 workspace: &mut Workspace,
10365 mut locations: Vec<Location>,
10366 title: String,
10367 split: bool,
10368 cx: &mut ViewContext<Workspace>,
10369 ) {
10370 // If there are multiple definitions, open them in a multibuffer
10371 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10372 let mut locations = locations.into_iter().peekable();
10373 let mut ranges_to_highlight = Vec::new();
10374 let capability = workspace.project().read(cx).capability();
10375
10376 let excerpt_buffer = cx.new_model(|cx| {
10377 let mut multibuffer = MultiBuffer::new(capability);
10378 while let Some(location) = locations.next() {
10379 let buffer = location.buffer.read(cx);
10380 let mut ranges_for_buffer = Vec::new();
10381 let range = location.range.to_offset(buffer);
10382 ranges_for_buffer.push(range.clone());
10383
10384 while let Some(next_location) = locations.peek() {
10385 if next_location.buffer == location.buffer {
10386 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10387 locations.next();
10388 } else {
10389 break;
10390 }
10391 }
10392
10393 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10394 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10395 location.buffer.clone(),
10396 ranges_for_buffer,
10397 DEFAULT_MULTIBUFFER_CONTEXT,
10398 cx,
10399 ))
10400 }
10401
10402 multibuffer.with_title(title)
10403 });
10404
10405 let editor = cx.new_view(|cx| {
10406 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10407 });
10408 editor.update(cx, |editor, cx| {
10409 if let Some(first_range) = ranges_to_highlight.first() {
10410 editor.change_selections(None, cx, |selections| {
10411 selections.clear_disjoint();
10412 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10413 });
10414 }
10415 editor.highlight_background::<Self>(
10416 &ranges_to_highlight,
10417 |theme| theme.editor_highlighted_line_background,
10418 cx,
10419 );
10420 });
10421
10422 let item = Box::new(editor);
10423 let item_id = item.item_id();
10424
10425 if split {
10426 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10427 } else {
10428 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10429 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10430 pane.close_current_preview_item(cx)
10431 } else {
10432 None
10433 }
10434 });
10435 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10436 }
10437 workspace.active_pane().update(cx, |pane, cx| {
10438 pane.set_preview_item_id(Some(item_id), cx);
10439 });
10440 }
10441
10442 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10443 use language::ToOffset as _;
10444
10445 let provider = self.semantics_provider.clone()?;
10446 let selection = self.selections.newest_anchor().clone();
10447 let (cursor_buffer, cursor_buffer_position) = self
10448 .buffer
10449 .read(cx)
10450 .text_anchor_for_position(selection.head(), cx)?;
10451 let (tail_buffer, cursor_buffer_position_end) = self
10452 .buffer
10453 .read(cx)
10454 .text_anchor_for_position(selection.tail(), cx)?;
10455 if tail_buffer != cursor_buffer {
10456 return None;
10457 }
10458
10459 let snapshot = cursor_buffer.read(cx).snapshot();
10460 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10461 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10462 let prepare_rename = provider
10463 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10464 .unwrap_or_else(|| Task::ready(Ok(None)));
10465 drop(snapshot);
10466
10467 Some(cx.spawn(|this, mut cx| async move {
10468 let rename_range = if let Some(range) = prepare_rename.await? {
10469 Some(range)
10470 } else {
10471 this.update(&mut cx, |this, cx| {
10472 let buffer = this.buffer.read(cx).snapshot(cx);
10473 let mut buffer_highlights = this
10474 .document_highlights_for_position(selection.head(), &buffer)
10475 .filter(|highlight| {
10476 highlight.start.excerpt_id == selection.head().excerpt_id
10477 && highlight.end.excerpt_id == selection.head().excerpt_id
10478 });
10479 buffer_highlights
10480 .next()
10481 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10482 })?
10483 };
10484 if let Some(rename_range) = rename_range {
10485 this.update(&mut cx, |this, cx| {
10486 let snapshot = cursor_buffer.read(cx).snapshot();
10487 let rename_buffer_range = rename_range.to_offset(&snapshot);
10488 let cursor_offset_in_rename_range =
10489 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10490 let cursor_offset_in_rename_range_end =
10491 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10492
10493 this.take_rename(false, cx);
10494 let buffer = this.buffer.read(cx).read(cx);
10495 let cursor_offset = selection.head().to_offset(&buffer);
10496 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10497 let rename_end = rename_start + rename_buffer_range.len();
10498 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10499 let mut old_highlight_id = None;
10500 let old_name: Arc<str> = buffer
10501 .chunks(rename_start..rename_end, true)
10502 .map(|chunk| {
10503 if old_highlight_id.is_none() {
10504 old_highlight_id = chunk.syntax_highlight_id;
10505 }
10506 chunk.text
10507 })
10508 .collect::<String>()
10509 .into();
10510
10511 drop(buffer);
10512
10513 // Position the selection in the rename editor so that it matches the current selection.
10514 this.show_local_selections = false;
10515 let rename_editor = cx.new_view(|cx| {
10516 let mut editor = Editor::single_line(cx);
10517 editor.buffer.update(cx, |buffer, cx| {
10518 buffer.edit([(0..0, old_name.clone())], None, cx)
10519 });
10520 let rename_selection_range = match cursor_offset_in_rename_range
10521 .cmp(&cursor_offset_in_rename_range_end)
10522 {
10523 Ordering::Equal => {
10524 editor.select_all(&SelectAll, cx);
10525 return editor;
10526 }
10527 Ordering::Less => {
10528 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10529 }
10530 Ordering::Greater => {
10531 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10532 }
10533 };
10534 if rename_selection_range.end > old_name.len() {
10535 editor.select_all(&SelectAll, cx);
10536 } else {
10537 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10538 s.select_ranges([rename_selection_range]);
10539 });
10540 }
10541 editor
10542 });
10543 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10544 if e == &EditorEvent::Focused {
10545 cx.emit(EditorEvent::FocusedIn)
10546 }
10547 })
10548 .detach();
10549
10550 let write_highlights =
10551 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10552 let read_highlights =
10553 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10554 let ranges = write_highlights
10555 .iter()
10556 .flat_map(|(_, ranges)| ranges.iter())
10557 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10558 .cloned()
10559 .collect();
10560
10561 this.highlight_text::<Rename>(
10562 ranges,
10563 HighlightStyle {
10564 fade_out: Some(0.6),
10565 ..Default::default()
10566 },
10567 cx,
10568 );
10569 let rename_focus_handle = rename_editor.focus_handle(cx);
10570 cx.focus(&rename_focus_handle);
10571 let block_id = this.insert_blocks(
10572 [BlockProperties {
10573 style: BlockStyle::Flex,
10574 placement: BlockPlacement::Below(range.start),
10575 height: 1,
10576 render: Arc::new({
10577 let rename_editor = rename_editor.clone();
10578 move |cx: &mut BlockContext| {
10579 let mut text_style = cx.editor_style.text.clone();
10580 if let Some(highlight_style) = old_highlight_id
10581 .and_then(|h| h.style(&cx.editor_style.syntax))
10582 {
10583 text_style = text_style.highlight(highlight_style);
10584 }
10585 div()
10586 .block_mouse_down()
10587 .pl(cx.anchor_x)
10588 .child(EditorElement::new(
10589 &rename_editor,
10590 EditorStyle {
10591 background: cx.theme().system().transparent,
10592 local_player: cx.editor_style.local_player,
10593 text: text_style,
10594 scrollbar_width: cx.editor_style.scrollbar_width,
10595 syntax: cx.editor_style.syntax.clone(),
10596 status: cx.editor_style.status.clone(),
10597 inlay_hints_style: HighlightStyle {
10598 font_weight: Some(FontWeight::BOLD),
10599 ..make_inlay_hints_style(cx)
10600 },
10601 suggestions_style: HighlightStyle {
10602 color: Some(cx.theme().status().predictive),
10603 ..HighlightStyle::default()
10604 },
10605 ..EditorStyle::default()
10606 },
10607 ))
10608 .into_any_element()
10609 }
10610 }),
10611 priority: 0,
10612 }],
10613 Some(Autoscroll::fit()),
10614 cx,
10615 )[0];
10616 this.pending_rename = Some(RenameState {
10617 range,
10618 old_name,
10619 editor: rename_editor,
10620 block_id,
10621 });
10622 })?;
10623 }
10624
10625 Ok(())
10626 }))
10627 }
10628
10629 pub fn confirm_rename(
10630 &mut self,
10631 _: &ConfirmRename,
10632 cx: &mut ViewContext<Self>,
10633 ) -> Option<Task<Result<()>>> {
10634 let rename = self.take_rename(false, cx)?;
10635 let workspace = self.workspace()?.downgrade();
10636 let (buffer, start) = self
10637 .buffer
10638 .read(cx)
10639 .text_anchor_for_position(rename.range.start, cx)?;
10640 let (end_buffer, _) = self
10641 .buffer
10642 .read(cx)
10643 .text_anchor_for_position(rename.range.end, cx)?;
10644 if buffer != end_buffer {
10645 return None;
10646 }
10647
10648 let old_name = rename.old_name;
10649 let new_name = rename.editor.read(cx).text(cx);
10650
10651 let rename = self.semantics_provider.as_ref()?.perform_rename(
10652 &buffer,
10653 start,
10654 new_name.clone(),
10655 cx,
10656 )?;
10657
10658 Some(cx.spawn(|editor, mut cx| async move {
10659 let project_transaction = rename.await?;
10660 Self::open_project_transaction(
10661 &editor,
10662 workspace,
10663 project_transaction,
10664 format!("Rename: {} → {}", old_name, new_name),
10665 cx.clone(),
10666 )
10667 .await?;
10668
10669 editor.update(&mut cx, |editor, cx| {
10670 editor.refresh_document_highlights(cx);
10671 })?;
10672 Ok(())
10673 }))
10674 }
10675
10676 fn take_rename(
10677 &mut self,
10678 moving_cursor: bool,
10679 cx: &mut ViewContext<Self>,
10680 ) -> Option<RenameState> {
10681 let rename = self.pending_rename.take()?;
10682 if rename.editor.focus_handle(cx).is_focused(cx) {
10683 cx.focus(&self.focus_handle);
10684 }
10685
10686 self.remove_blocks(
10687 [rename.block_id].into_iter().collect(),
10688 Some(Autoscroll::fit()),
10689 cx,
10690 );
10691 self.clear_highlights::<Rename>(cx);
10692 self.show_local_selections = true;
10693
10694 if moving_cursor {
10695 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10696 editor.selections.newest::<usize>(cx).head()
10697 });
10698
10699 // Update the selection to match the position of the selection inside
10700 // the rename editor.
10701 let snapshot = self.buffer.read(cx).read(cx);
10702 let rename_range = rename.range.to_offset(&snapshot);
10703 let cursor_in_editor = snapshot
10704 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10705 .min(rename_range.end);
10706 drop(snapshot);
10707
10708 self.change_selections(None, cx, |s| {
10709 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10710 });
10711 } else {
10712 self.refresh_document_highlights(cx);
10713 }
10714
10715 Some(rename)
10716 }
10717
10718 pub fn pending_rename(&self) -> Option<&RenameState> {
10719 self.pending_rename.as_ref()
10720 }
10721
10722 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10723 let project = match &self.project {
10724 Some(project) => project.clone(),
10725 None => return None,
10726 };
10727
10728 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10729 }
10730
10731 fn format_selections(
10732 &mut self,
10733 _: &FormatSelections,
10734 cx: &mut ViewContext<Self>,
10735 ) -> Option<Task<Result<()>>> {
10736 let project = match &self.project {
10737 Some(project) => project.clone(),
10738 None => return None,
10739 };
10740
10741 let selections = self
10742 .selections
10743 .all_adjusted(cx)
10744 .into_iter()
10745 .filter(|s| !s.is_empty())
10746 .collect_vec();
10747
10748 Some(self.perform_format(
10749 project,
10750 FormatTrigger::Manual,
10751 FormatTarget::Ranges(selections),
10752 cx,
10753 ))
10754 }
10755
10756 fn perform_format(
10757 &mut self,
10758 project: Model<Project>,
10759 trigger: FormatTrigger,
10760 target: FormatTarget,
10761 cx: &mut ViewContext<Self>,
10762 ) -> Task<Result<()>> {
10763 let buffer = self.buffer().clone();
10764 let mut buffers = buffer.read(cx).all_buffers();
10765 if trigger == FormatTrigger::Save {
10766 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10767 }
10768
10769 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10770 let format = project.update(cx, |project, cx| {
10771 project.format(buffers, true, trigger, target, cx)
10772 });
10773
10774 cx.spawn(|_, mut cx| async move {
10775 let transaction = futures::select_biased! {
10776 () = timeout => {
10777 log::warn!("timed out waiting for formatting");
10778 None
10779 }
10780 transaction = format.log_err().fuse() => transaction,
10781 };
10782
10783 buffer
10784 .update(&mut cx, |buffer, cx| {
10785 if let Some(transaction) = transaction {
10786 if !buffer.is_singleton() {
10787 buffer.push_transaction(&transaction.0, cx);
10788 }
10789 }
10790
10791 cx.notify();
10792 })
10793 .ok();
10794
10795 Ok(())
10796 })
10797 }
10798
10799 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10800 if let Some(project) = self.project.clone() {
10801 self.buffer.update(cx, |multi_buffer, cx| {
10802 project.update(cx, |project, cx| {
10803 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10804 });
10805 })
10806 }
10807 }
10808
10809 fn cancel_language_server_work(
10810 &mut self,
10811 _: &actions::CancelLanguageServerWork,
10812 cx: &mut ViewContext<Self>,
10813 ) {
10814 if let Some(project) = self.project.clone() {
10815 self.buffer.update(cx, |multi_buffer, cx| {
10816 project.update(cx, |project, cx| {
10817 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10818 });
10819 })
10820 }
10821 }
10822
10823 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10824 cx.show_character_palette();
10825 }
10826
10827 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10828 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10829 let buffer = self.buffer.read(cx).snapshot(cx);
10830 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10831 let is_valid = buffer
10832 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10833 .any(|entry| {
10834 entry.diagnostic.is_primary
10835 && !entry.range.is_empty()
10836 && entry.range.start == primary_range_start
10837 && entry.diagnostic.message == active_diagnostics.primary_message
10838 });
10839
10840 if is_valid != active_diagnostics.is_valid {
10841 active_diagnostics.is_valid = is_valid;
10842 let mut new_styles = HashMap::default();
10843 for (block_id, diagnostic) in &active_diagnostics.blocks {
10844 new_styles.insert(
10845 *block_id,
10846 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10847 );
10848 }
10849 self.display_map.update(cx, |display_map, _cx| {
10850 display_map.replace_blocks(new_styles)
10851 });
10852 }
10853 }
10854 }
10855
10856 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10857 self.dismiss_diagnostics(cx);
10858 let snapshot = self.snapshot(cx);
10859 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10860 let buffer = self.buffer.read(cx).snapshot(cx);
10861
10862 let mut primary_range = None;
10863 let mut primary_message = None;
10864 let mut group_end = Point::zero();
10865 let diagnostic_group = buffer
10866 .diagnostic_group::<MultiBufferPoint>(group_id)
10867 .filter_map(|entry| {
10868 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10869 && (entry.range.start.row == entry.range.end.row
10870 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10871 {
10872 return None;
10873 }
10874 if entry.range.end > group_end {
10875 group_end = entry.range.end;
10876 }
10877 if entry.diagnostic.is_primary {
10878 primary_range = Some(entry.range.clone());
10879 primary_message = Some(entry.diagnostic.message.clone());
10880 }
10881 Some(entry)
10882 })
10883 .collect::<Vec<_>>();
10884 let primary_range = primary_range?;
10885 let primary_message = primary_message?;
10886 let primary_range =
10887 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10888
10889 let blocks = display_map
10890 .insert_blocks(
10891 diagnostic_group.iter().map(|entry| {
10892 let diagnostic = entry.diagnostic.clone();
10893 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10894 BlockProperties {
10895 style: BlockStyle::Fixed,
10896 placement: BlockPlacement::Below(
10897 buffer.anchor_after(entry.range.start),
10898 ),
10899 height: message_height,
10900 render: diagnostic_block_renderer(diagnostic, None, true, true),
10901 priority: 0,
10902 }
10903 }),
10904 cx,
10905 )
10906 .into_iter()
10907 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10908 .collect();
10909
10910 Some(ActiveDiagnosticGroup {
10911 primary_range,
10912 primary_message,
10913 group_id,
10914 blocks,
10915 is_valid: true,
10916 })
10917 });
10918 self.active_diagnostics.is_some()
10919 }
10920
10921 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10922 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10923 self.display_map.update(cx, |display_map, cx| {
10924 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10925 });
10926 cx.notify();
10927 }
10928 }
10929
10930 pub fn set_selections_from_remote(
10931 &mut self,
10932 selections: Vec<Selection<Anchor>>,
10933 pending_selection: Option<Selection<Anchor>>,
10934 cx: &mut ViewContext<Self>,
10935 ) {
10936 let old_cursor_position = self.selections.newest_anchor().head();
10937 self.selections.change_with(cx, |s| {
10938 s.select_anchors(selections);
10939 if let Some(pending_selection) = pending_selection {
10940 s.set_pending(pending_selection, SelectMode::Character);
10941 } else {
10942 s.clear_pending();
10943 }
10944 });
10945 self.selections_did_change(false, &old_cursor_position, true, cx);
10946 }
10947
10948 fn push_to_selection_history(&mut self) {
10949 self.selection_history.push(SelectionHistoryEntry {
10950 selections: self.selections.disjoint_anchors(),
10951 select_next_state: self.select_next_state.clone(),
10952 select_prev_state: self.select_prev_state.clone(),
10953 add_selections_state: self.add_selections_state.clone(),
10954 });
10955 }
10956
10957 pub fn transact(
10958 &mut self,
10959 cx: &mut ViewContext<Self>,
10960 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10961 ) -> Option<TransactionId> {
10962 self.start_transaction_at(Instant::now(), cx);
10963 update(self, cx);
10964 self.end_transaction_at(Instant::now(), cx)
10965 }
10966
10967 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10968 self.end_selection(cx);
10969 if let Some(tx_id) = self
10970 .buffer
10971 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10972 {
10973 self.selection_history
10974 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10975 cx.emit(EditorEvent::TransactionBegun {
10976 transaction_id: tx_id,
10977 })
10978 }
10979 }
10980
10981 fn end_transaction_at(
10982 &mut self,
10983 now: Instant,
10984 cx: &mut ViewContext<Self>,
10985 ) -> Option<TransactionId> {
10986 if let Some(transaction_id) = self
10987 .buffer
10988 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10989 {
10990 if let Some((_, end_selections)) =
10991 self.selection_history.transaction_mut(transaction_id)
10992 {
10993 *end_selections = Some(self.selections.disjoint_anchors());
10994 } else {
10995 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10996 }
10997
10998 cx.emit(EditorEvent::Edited { transaction_id });
10999 Some(transaction_id)
11000 } else {
11001 None
11002 }
11003 }
11004
11005 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
11006 let selection = self.selections.newest::<Point>(cx);
11007
11008 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11009 let range = if selection.is_empty() {
11010 let point = selection.head().to_display_point(&display_map);
11011 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11012 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11013 .to_point(&display_map);
11014 start..end
11015 } else {
11016 selection.range()
11017 };
11018 if display_map.folds_in_range(range).next().is_some() {
11019 self.unfold_lines(&Default::default(), cx)
11020 } else {
11021 self.fold(&Default::default(), cx)
11022 }
11023 }
11024
11025 pub fn toggle_fold_recursive(
11026 &mut self,
11027 _: &actions::ToggleFoldRecursive,
11028 cx: &mut ViewContext<Self>,
11029 ) {
11030 let selection = self.selections.newest::<Point>(cx);
11031
11032 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11033 let range = if selection.is_empty() {
11034 let point = selection.head().to_display_point(&display_map);
11035 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11036 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11037 .to_point(&display_map);
11038 start..end
11039 } else {
11040 selection.range()
11041 };
11042 if display_map.folds_in_range(range).next().is_some() {
11043 self.unfold_recursive(&Default::default(), cx)
11044 } else {
11045 self.fold_recursive(&Default::default(), cx)
11046 }
11047 }
11048
11049 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
11050 let mut to_fold = Vec::new();
11051 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11052 let selections = self.selections.all_adjusted(cx);
11053
11054 for selection in selections {
11055 let range = selection.range().sorted();
11056 let buffer_start_row = range.start.row;
11057
11058 if range.start.row != range.end.row {
11059 let mut found = false;
11060 let mut row = range.start.row;
11061 while row <= range.end.row {
11062 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11063 found = true;
11064 row = crease.range().end.row + 1;
11065 to_fold.push(crease);
11066 } else {
11067 row += 1
11068 }
11069 }
11070 if found {
11071 continue;
11072 }
11073 }
11074
11075 for row in (0..=range.start.row).rev() {
11076 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11077 if crease.range().end.row >= buffer_start_row {
11078 to_fold.push(crease);
11079 if row <= range.start.row {
11080 break;
11081 }
11082 }
11083 }
11084 }
11085 }
11086
11087 self.fold_creases(to_fold, true, cx);
11088 }
11089
11090 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
11091 let fold_at_level = fold_at.level;
11092 let snapshot = self.buffer.read(cx).snapshot(cx);
11093 let mut to_fold = Vec::new();
11094 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
11095
11096 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
11097 while start_row < end_row {
11098 match self
11099 .snapshot(cx)
11100 .crease_for_buffer_row(MultiBufferRow(start_row))
11101 {
11102 Some(crease) => {
11103 let nested_start_row = crease.range().start.row + 1;
11104 let nested_end_row = crease.range().end.row;
11105
11106 if current_level < fold_at_level {
11107 stack.push((nested_start_row, nested_end_row, current_level + 1));
11108 } else if current_level == fold_at_level {
11109 to_fold.push(crease);
11110 }
11111
11112 start_row = nested_end_row + 1;
11113 }
11114 None => start_row += 1,
11115 }
11116 }
11117 }
11118
11119 self.fold_creases(to_fold, true, cx);
11120 }
11121
11122 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
11123 let mut fold_ranges = Vec::new();
11124 let snapshot = self.buffer.read(cx).snapshot(cx);
11125
11126 for row in 0..snapshot.max_buffer_row().0 {
11127 if let Some(foldable_range) =
11128 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
11129 {
11130 fold_ranges.push(foldable_range);
11131 }
11132 }
11133
11134 self.fold_creases(fold_ranges, true, cx);
11135 }
11136
11137 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
11138 let mut to_fold = Vec::new();
11139 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11140 let selections = self.selections.all_adjusted(cx);
11141
11142 for selection in selections {
11143 let range = selection.range().sorted();
11144 let buffer_start_row = range.start.row;
11145
11146 if range.start.row != range.end.row {
11147 let mut found = false;
11148 for row in range.start.row..=range.end.row {
11149 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11150 found = true;
11151 to_fold.push(crease);
11152 }
11153 }
11154 if found {
11155 continue;
11156 }
11157 }
11158
11159 for row in (0..=range.start.row).rev() {
11160 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11161 if crease.range().end.row >= buffer_start_row {
11162 to_fold.push(crease);
11163 } else {
11164 break;
11165 }
11166 }
11167 }
11168 }
11169
11170 self.fold_creases(to_fold, true, cx);
11171 }
11172
11173 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
11174 let buffer_row = fold_at.buffer_row;
11175 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11176
11177 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
11178 let autoscroll = self
11179 .selections
11180 .all::<Point>(cx)
11181 .iter()
11182 .any(|selection| crease.range().overlaps(&selection.range()));
11183
11184 self.fold_creases(vec![crease], autoscroll, cx);
11185 }
11186 }
11187
11188 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
11189 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11190 let buffer = &display_map.buffer_snapshot;
11191 let selections = self.selections.all::<Point>(cx);
11192 let ranges = selections
11193 .iter()
11194 .map(|s| {
11195 let range = s.display_range(&display_map).sorted();
11196 let mut start = range.start.to_point(&display_map);
11197 let mut end = range.end.to_point(&display_map);
11198 start.column = 0;
11199 end.column = buffer.line_len(MultiBufferRow(end.row));
11200 start..end
11201 })
11202 .collect::<Vec<_>>();
11203
11204 self.unfold_ranges(&ranges, true, true, cx);
11205 }
11206
11207 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11208 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11209 let selections = self.selections.all::<Point>(cx);
11210 let ranges = selections
11211 .iter()
11212 .map(|s| {
11213 let mut range = s.display_range(&display_map).sorted();
11214 *range.start.column_mut() = 0;
11215 *range.end.column_mut() = display_map.line_len(range.end.row());
11216 let start = range.start.to_point(&display_map);
11217 let end = range.end.to_point(&display_map);
11218 start..end
11219 })
11220 .collect::<Vec<_>>();
11221
11222 self.unfold_ranges(&ranges, true, true, cx);
11223 }
11224
11225 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11226 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11227
11228 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11229 ..Point::new(
11230 unfold_at.buffer_row.0,
11231 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11232 );
11233
11234 let autoscroll = self
11235 .selections
11236 .all::<Point>(cx)
11237 .iter()
11238 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11239
11240 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11241 }
11242
11243 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11244 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11245 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
11246 }
11247
11248 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11249 let selections = self.selections.all::<Point>(cx);
11250 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11251 let line_mode = self.selections.line_mode;
11252 let ranges = selections
11253 .into_iter()
11254 .map(|s| {
11255 if line_mode {
11256 let start = Point::new(s.start.row, 0);
11257 let end = Point::new(
11258 s.end.row,
11259 display_map
11260 .buffer_snapshot
11261 .line_len(MultiBufferRow(s.end.row)),
11262 );
11263 Crease::simple(start..end, display_map.fold_placeholder.clone())
11264 } else {
11265 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
11266 }
11267 })
11268 .collect::<Vec<_>>();
11269 self.fold_creases(ranges, true, cx);
11270 }
11271
11272 pub fn fold_creases<T: ToOffset + Clone>(
11273 &mut self,
11274 creases: Vec<Crease<T>>,
11275 auto_scroll: bool,
11276 cx: &mut ViewContext<Self>,
11277 ) {
11278 if creases.is_empty() {
11279 return;
11280 }
11281
11282 let mut buffers_affected = HashMap::default();
11283 let multi_buffer = self.buffer().read(cx);
11284 for crease in &creases {
11285 if let Some((_, buffer, _)) =
11286 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
11287 {
11288 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11289 };
11290 }
11291
11292 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
11293
11294 if auto_scroll {
11295 self.request_autoscroll(Autoscroll::fit(), cx);
11296 }
11297
11298 for buffer in buffers_affected.into_values() {
11299 self.sync_expanded_diff_hunks(buffer, cx);
11300 }
11301
11302 cx.notify();
11303
11304 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11305 // Clear diagnostics block when folding a range that contains it.
11306 let snapshot = self.snapshot(cx);
11307 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11308 drop(snapshot);
11309 self.active_diagnostics = Some(active_diagnostics);
11310 self.dismiss_diagnostics(cx);
11311 } else {
11312 self.active_diagnostics = Some(active_diagnostics);
11313 }
11314 }
11315
11316 self.scrollbar_marker_state.dirty = true;
11317 }
11318
11319 /// Removes any folds whose ranges intersect any of the given ranges.
11320 pub fn unfold_ranges<T: ToOffset + Clone>(
11321 &mut self,
11322 ranges: &[Range<T>],
11323 inclusive: bool,
11324 auto_scroll: bool,
11325 cx: &mut ViewContext<Self>,
11326 ) {
11327 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11328 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11329 });
11330 }
11331
11332 /// Removes any folds with the given ranges.
11333 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11334 &mut self,
11335 ranges: &[Range<T>],
11336 type_id: TypeId,
11337 auto_scroll: bool,
11338 cx: &mut ViewContext<Self>,
11339 ) {
11340 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11341 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11342 });
11343 }
11344
11345 fn remove_folds_with<T: ToOffset + Clone>(
11346 &mut self,
11347 ranges: &[Range<T>],
11348 auto_scroll: bool,
11349 cx: &mut ViewContext<Self>,
11350 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11351 ) {
11352 if ranges.is_empty() {
11353 return;
11354 }
11355
11356 let mut buffers_affected = HashMap::default();
11357 let multi_buffer = self.buffer().read(cx);
11358 for range in ranges {
11359 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11360 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11361 };
11362 }
11363
11364 self.display_map.update(cx, update);
11365
11366 if auto_scroll {
11367 self.request_autoscroll(Autoscroll::fit(), cx);
11368 }
11369
11370 for buffer in buffers_affected.into_values() {
11371 self.sync_expanded_diff_hunks(buffer, cx);
11372 }
11373
11374 cx.notify();
11375 self.scrollbar_marker_state.dirty = true;
11376 self.active_indent_guides_state.dirty = true;
11377 }
11378
11379 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11380 self.display_map.read(cx).fold_placeholder.clone()
11381 }
11382
11383 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11384 if hovered != self.gutter_hovered {
11385 self.gutter_hovered = hovered;
11386 cx.notify();
11387 }
11388 }
11389
11390 pub fn insert_blocks(
11391 &mut self,
11392 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11393 autoscroll: Option<Autoscroll>,
11394 cx: &mut ViewContext<Self>,
11395 ) -> Vec<CustomBlockId> {
11396 let blocks = self
11397 .display_map
11398 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11399 if let Some(autoscroll) = autoscroll {
11400 self.request_autoscroll(autoscroll, cx);
11401 }
11402 cx.notify();
11403 blocks
11404 }
11405
11406 pub fn resize_blocks(
11407 &mut self,
11408 heights: HashMap<CustomBlockId, u32>,
11409 autoscroll: Option<Autoscroll>,
11410 cx: &mut ViewContext<Self>,
11411 ) {
11412 self.display_map
11413 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11414 if let Some(autoscroll) = autoscroll {
11415 self.request_autoscroll(autoscroll, cx);
11416 }
11417 cx.notify();
11418 }
11419
11420 pub fn replace_blocks(
11421 &mut self,
11422 renderers: HashMap<CustomBlockId, RenderBlock>,
11423 autoscroll: Option<Autoscroll>,
11424 cx: &mut ViewContext<Self>,
11425 ) {
11426 self.display_map
11427 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11428 if let Some(autoscroll) = autoscroll {
11429 self.request_autoscroll(autoscroll, cx);
11430 }
11431 cx.notify();
11432 }
11433
11434 pub fn remove_blocks(
11435 &mut self,
11436 block_ids: HashSet<CustomBlockId>,
11437 autoscroll: Option<Autoscroll>,
11438 cx: &mut ViewContext<Self>,
11439 ) {
11440 self.display_map.update(cx, |display_map, cx| {
11441 display_map.remove_blocks(block_ids, cx)
11442 });
11443 if let Some(autoscroll) = autoscroll {
11444 self.request_autoscroll(autoscroll, cx);
11445 }
11446 cx.notify();
11447 }
11448
11449 pub fn row_for_block(
11450 &self,
11451 block_id: CustomBlockId,
11452 cx: &mut ViewContext<Self>,
11453 ) -> Option<DisplayRow> {
11454 self.display_map
11455 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11456 }
11457
11458 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11459 self.focused_block = Some(focused_block);
11460 }
11461
11462 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11463 self.focused_block.take()
11464 }
11465
11466 pub fn insert_creases(
11467 &mut self,
11468 creases: impl IntoIterator<Item = Crease<Anchor>>,
11469 cx: &mut ViewContext<Self>,
11470 ) -> Vec<CreaseId> {
11471 self.display_map
11472 .update(cx, |map, cx| map.insert_creases(creases, cx))
11473 }
11474
11475 pub fn remove_creases(
11476 &mut self,
11477 ids: impl IntoIterator<Item = CreaseId>,
11478 cx: &mut ViewContext<Self>,
11479 ) {
11480 self.display_map
11481 .update(cx, |map, cx| map.remove_creases(ids, cx));
11482 }
11483
11484 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11485 self.display_map
11486 .update(cx, |map, cx| map.snapshot(cx))
11487 .longest_row()
11488 }
11489
11490 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11491 self.display_map
11492 .update(cx, |map, cx| map.snapshot(cx))
11493 .max_point()
11494 }
11495
11496 pub fn text(&self, cx: &AppContext) -> String {
11497 self.buffer.read(cx).read(cx).text()
11498 }
11499
11500 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11501 let text = self.text(cx);
11502 let text = text.trim();
11503
11504 if text.is_empty() {
11505 return None;
11506 }
11507
11508 Some(text.to_string())
11509 }
11510
11511 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11512 self.transact(cx, |this, cx| {
11513 this.buffer
11514 .read(cx)
11515 .as_singleton()
11516 .expect("you can only call set_text on editors for singleton buffers")
11517 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11518 });
11519 }
11520
11521 pub fn display_text(&self, cx: &mut AppContext) -> String {
11522 self.display_map
11523 .update(cx, |map, cx| map.snapshot(cx))
11524 .text()
11525 }
11526
11527 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11528 let mut wrap_guides = smallvec::smallvec![];
11529
11530 if self.show_wrap_guides == Some(false) {
11531 return wrap_guides;
11532 }
11533
11534 let settings = self.buffer.read(cx).settings_at(0, cx);
11535 if settings.show_wrap_guides {
11536 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11537 wrap_guides.push((soft_wrap as usize, true));
11538 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11539 wrap_guides.push((soft_wrap as usize, true));
11540 }
11541 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11542 }
11543
11544 wrap_guides
11545 }
11546
11547 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11548 let settings = self.buffer.read(cx).settings_at(0, cx);
11549 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11550 match mode {
11551 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11552 SoftWrap::None
11553 }
11554 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11555 language_settings::SoftWrap::PreferredLineLength => {
11556 SoftWrap::Column(settings.preferred_line_length)
11557 }
11558 language_settings::SoftWrap::Bounded => {
11559 SoftWrap::Bounded(settings.preferred_line_length)
11560 }
11561 }
11562 }
11563
11564 pub fn set_soft_wrap_mode(
11565 &mut self,
11566 mode: language_settings::SoftWrap,
11567 cx: &mut ViewContext<Self>,
11568 ) {
11569 self.soft_wrap_mode_override = Some(mode);
11570 cx.notify();
11571 }
11572
11573 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11574 self.text_style_refinement = Some(style);
11575 }
11576
11577 /// called by the Element so we know what style we were most recently rendered with.
11578 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11579 let rem_size = cx.rem_size();
11580 self.display_map.update(cx, |map, cx| {
11581 map.set_font(
11582 style.text.font(),
11583 style.text.font_size.to_pixels(rem_size),
11584 cx,
11585 )
11586 });
11587 self.style = Some(style);
11588 }
11589
11590 pub fn style(&self) -> Option<&EditorStyle> {
11591 self.style.as_ref()
11592 }
11593
11594 // Called by the element. This method is not designed to be called outside of the editor
11595 // element's layout code because it does not notify when rewrapping is computed synchronously.
11596 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11597 self.display_map
11598 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11599 }
11600
11601 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11602 if self.soft_wrap_mode_override.is_some() {
11603 self.soft_wrap_mode_override.take();
11604 } else {
11605 let soft_wrap = match self.soft_wrap_mode(cx) {
11606 SoftWrap::GitDiff => return,
11607 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11608 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11609 language_settings::SoftWrap::None
11610 }
11611 };
11612 self.soft_wrap_mode_override = Some(soft_wrap);
11613 }
11614 cx.notify();
11615 }
11616
11617 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11618 let Some(workspace) = self.workspace() else {
11619 return;
11620 };
11621 let fs = workspace.read(cx).app_state().fs.clone();
11622 let current_show = TabBarSettings::get_global(cx).show;
11623 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11624 setting.show = Some(!current_show);
11625 });
11626 }
11627
11628 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11629 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11630 self.buffer
11631 .read(cx)
11632 .settings_at(0, cx)
11633 .indent_guides
11634 .enabled
11635 });
11636 self.show_indent_guides = Some(!currently_enabled);
11637 cx.notify();
11638 }
11639
11640 fn should_show_indent_guides(&self) -> Option<bool> {
11641 self.show_indent_guides
11642 }
11643
11644 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11645 let mut editor_settings = EditorSettings::get_global(cx).clone();
11646 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11647 EditorSettings::override_global(editor_settings, cx);
11648 }
11649
11650 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11651 self.use_relative_line_numbers
11652 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11653 }
11654
11655 pub fn toggle_relative_line_numbers(
11656 &mut self,
11657 _: &ToggleRelativeLineNumbers,
11658 cx: &mut ViewContext<Self>,
11659 ) {
11660 let is_relative = self.should_use_relative_line_numbers(cx);
11661 self.set_relative_line_number(Some(!is_relative), cx)
11662 }
11663
11664 pub fn set_relative_line_number(
11665 &mut self,
11666 is_relative: Option<bool>,
11667 cx: &mut ViewContext<Self>,
11668 ) {
11669 self.use_relative_line_numbers = is_relative;
11670 cx.notify();
11671 }
11672
11673 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11674 self.show_gutter = show_gutter;
11675 cx.notify();
11676 }
11677
11678 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11679 self.show_line_numbers = Some(show_line_numbers);
11680 cx.notify();
11681 }
11682
11683 pub fn set_show_git_diff_gutter(
11684 &mut self,
11685 show_git_diff_gutter: bool,
11686 cx: &mut ViewContext<Self>,
11687 ) {
11688 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11689 cx.notify();
11690 }
11691
11692 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11693 self.show_code_actions = Some(show_code_actions);
11694 cx.notify();
11695 }
11696
11697 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11698 self.show_runnables = Some(show_runnables);
11699 cx.notify();
11700 }
11701
11702 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11703 if self.display_map.read(cx).masked != masked {
11704 self.display_map.update(cx, |map, _| map.masked = masked);
11705 }
11706 cx.notify()
11707 }
11708
11709 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11710 self.show_wrap_guides = Some(show_wrap_guides);
11711 cx.notify();
11712 }
11713
11714 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11715 self.show_indent_guides = Some(show_indent_guides);
11716 cx.notify();
11717 }
11718
11719 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11720 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11721 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11722 if let Some(dir) = file.abs_path(cx).parent() {
11723 return Some(dir.to_owned());
11724 }
11725 }
11726
11727 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11728 return Some(project_path.path.to_path_buf());
11729 }
11730 }
11731
11732 None
11733 }
11734
11735 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11736 self.active_excerpt(cx)?
11737 .1
11738 .read(cx)
11739 .file()
11740 .and_then(|f| f.as_local())
11741 }
11742
11743 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11744 if let Some(target) = self.target_file(cx) {
11745 cx.reveal_path(&target.abs_path(cx));
11746 }
11747 }
11748
11749 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11750 if let Some(file) = self.target_file(cx) {
11751 if let Some(path) = file.abs_path(cx).to_str() {
11752 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11753 }
11754 }
11755 }
11756
11757 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11758 if let Some(file) = self.target_file(cx) {
11759 if let Some(path) = file.path().to_str() {
11760 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11761 }
11762 }
11763 }
11764
11765 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11766 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11767
11768 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11769 self.start_git_blame(true, cx);
11770 }
11771
11772 cx.notify();
11773 }
11774
11775 pub fn toggle_git_blame_inline(
11776 &mut self,
11777 _: &ToggleGitBlameInline,
11778 cx: &mut ViewContext<Self>,
11779 ) {
11780 self.toggle_git_blame_inline_internal(true, cx);
11781 cx.notify();
11782 }
11783
11784 pub fn git_blame_inline_enabled(&self) -> bool {
11785 self.git_blame_inline_enabled
11786 }
11787
11788 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11789 self.show_selection_menu = self
11790 .show_selection_menu
11791 .map(|show_selections_menu| !show_selections_menu)
11792 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11793
11794 cx.notify();
11795 }
11796
11797 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11798 self.show_selection_menu
11799 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11800 }
11801
11802 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11803 if let Some(project) = self.project.as_ref() {
11804 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11805 return;
11806 };
11807
11808 if buffer.read(cx).file().is_none() {
11809 return;
11810 }
11811
11812 let focused = self.focus_handle(cx).contains_focused(cx);
11813
11814 let project = project.clone();
11815 let blame =
11816 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11817 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11818 self.blame = Some(blame);
11819 }
11820 }
11821
11822 fn toggle_git_blame_inline_internal(
11823 &mut self,
11824 user_triggered: bool,
11825 cx: &mut ViewContext<Self>,
11826 ) {
11827 if self.git_blame_inline_enabled {
11828 self.git_blame_inline_enabled = false;
11829 self.show_git_blame_inline = false;
11830 self.show_git_blame_inline_delay_task.take();
11831 } else {
11832 self.git_blame_inline_enabled = true;
11833 self.start_git_blame_inline(user_triggered, cx);
11834 }
11835
11836 cx.notify();
11837 }
11838
11839 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11840 self.start_git_blame(user_triggered, cx);
11841
11842 if ProjectSettings::get_global(cx)
11843 .git
11844 .inline_blame_delay()
11845 .is_some()
11846 {
11847 self.start_inline_blame_timer(cx);
11848 } else {
11849 self.show_git_blame_inline = true
11850 }
11851 }
11852
11853 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11854 self.blame.as_ref()
11855 }
11856
11857 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11858 self.show_git_blame_gutter && self.has_blame_entries(cx)
11859 }
11860
11861 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11862 self.show_git_blame_inline
11863 && self.focus_handle.is_focused(cx)
11864 && !self.newest_selection_head_on_empty_line(cx)
11865 && self.has_blame_entries(cx)
11866 }
11867
11868 pub fn render_active_line_trailer(
11869 &mut self,
11870 style: &EditorStyle,
11871 cx: &mut WindowContext,
11872 ) -> Option<AnyElement> {
11873 if !self.newest_selection_head_on_empty_line(cx) || self.has_active_inline_completion(cx) {
11874 return None;
11875 }
11876
11877 let focus_handle = self.focus_handle.clone();
11878 self.active_line_trailer_provider
11879 .as_mut()?
11880 .render_active_line_trailer(style, &focus_handle, cx)
11881 }
11882
11883 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11884 self.blame()
11885 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11886 }
11887
11888 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11889 let cursor_anchor = self.selections.newest_anchor().head();
11890
11891 let snapshot = self.buffer.read(cx).snapshot(cx);
11892 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11893
11894 snapshot.line_len(buffer_row) == 0
11895 }
11896
11897 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11898 let buffer_and_selection = maybe!({
11899 let selection = self.selections.newest::<Point>(cx);
11900 let selection_range = selection.range();
11901
11902 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11903 (buffer, selection_range.start.row..selection_range.end.row)
11904 } else {
11905 let buffer_ranges = self
11906 .buffer()
11907 .read(cx)
11908 .range_to_buffer_ranges(selection_range, cx);
11909
11910 let (buffer, range, _) = if selection.reversed {
11911 buffer_ranges.first()
11912 } else {
11913 buffer_ranges.last()
11914 }?;
11915
11916 let snapshot = buffer.read(cx).snapshot();
11917 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11918 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11919 (buffer.clone(), selection)
11920 };
11921
11922 Some((buffer, selection))
11923 });
11924
11925 let Some((buffer, selection)) = buffer_and_selection else {
11926 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11927 };
11928
11929 let Some(project) = self.project.as_ref() else {
11930 return Task::ready(Err(anyhow!("editor does not have project")));
11931 };
11932
11933 project.update(cx, |project, cx| {
11934 project.get_permalink_to_line(&buffer, selection, cx)
11935 })
11936 }
11937
11938 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11939 let permalink_task = self.get_permalink_to_line(cx);
11940 let workspace = self.workspace();
11941
11942 cx.spawn(|_, mut cx| async move {
11943 match permalink_task.await {
11944 Ok(permalink) => {
11945 cx.update(|cx| {
11946 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11947 })
11948 .ok();
11949 }
11950 Err(err) => {
11951 let message = format!("Failed to copy permalink: {err}");
11952
11953 Err::<(), anyhow::Error>(err).log_err();
11954
11955 if let Some(workspace) = workspace {
11956 workspace
11957 .update(&mut cx, |workspace, cx| {
11958 struct CopyPermalinkToLine;
11959
11960 workspace.show_toast(
11961 Toast::new(
11962 NotificationId::unique::<CopyPermalinkToLine>(),
11963 message,
11964 ),
11965 cx,
11966 )
11967 })
11968 .ok();
11969 }
11970 }
11971 }
11972 })
11973 .detach();
11974 }
11975
11976 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11977 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11978 if let Some(file) = self.target_file(cx) {
11979 if let Some(path) = file.path().to_str() {
11980 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11981 }
11982 }
11983 }
11984
11985 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11986 let permalink_task = self.get_permalink_to_line(cx);
11987 let workspace = self.workspace();
11988
11989 cx.spawn(|_, mut cx| async move {
11990 match permalink_task.await {
11991 Ok(permalink) => {
11992 cx.update(|cx| {
11993 cx.open_url(permalink.as_ref());
11994 })
11995 .ok();
11996 }
11997 Err(err) => {
11998 let message = format!("Failed to open permalink: {err}");
11999
12000 Err::<(), anyhow::Error>(err).log_err();
12001
12002 if let Some(workspace) = workspace {
12003 workspace
12004 .update(&mut cx, |workspace, cx| {
12005 struct OpenPermalinkToLine;
12006
12007 workspace.show_toast(
12008 Toast::new(
12009 NotificationId::unique::<OpenPermalinkToLine>(),
12010 message,
12011 ),
12012 cx,
12013 )
12014 })
12015 .ok();
12016 }
12017 }
12018 }
12019 })
12020 .detach();
12021 }
12022
12023 /// Adds a row highlight for the given range. If a row has multiple highlights, the
12024 /// last highlight added will be used.
12025 ///
12026 /// If the range ends at the beginning of a line, then that line will not be highlighted.
12027 pub fn highlight_rows<T: 'static>(
12028 &mut self,
12029 range: Range<Anchor>,
12030 color: Hsla,
12031 should_autoscroll: bool,
12032 cx: &mut ViewContext<Self>,
12033 ) {
12034 let snapshot = self.buffer().read(cx).snapshot(cx);
12035 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12036 let ix = row_highlights.binary_search_by(|highlight| {
12037 Ordering::Equal
12038 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
12039 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
12040 });
12041
12042 if let Err(mut ix) = ix {
12043 let index = post_inc(&mut self.highlight_order);
12044
12045 // If this range intersects with the preceding highlight, then merge it with
12046 // the preceding highlight. Otherwise insert a new highlight.
12047 let mut merged = false;
12048 if ix > 0 {
12049 let prev_highlight = &mut row_highlights[ix - 1];
12050 if prev_highlight
12051 .range
12052 .end
12053 .cmp(&range.start, &snapshot)
12054 .is_ge()
12055 {
12056 ix -= 1;
12057 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
12058 prev_highlight.range.end = range.end;
12059 }
12060 merged = true;
12061 prev_highlight.index = index;
12062 prev_highlight.color = color;
12063 prev_highlight.should_autoscroll = should_autoscroll;
12064 }
12065 }
12066
12067 if !merged {
12068 row_highlights.insert(
12069 ix,
12070 RowHighlight {
12071 range: range.clone(),
12072 index,
12073 color,
12074 should_autoscroll,
12075 },
12076 );
12077 }
12078
12079 // If any of the following highlights intersect with this one, merge them.
12080 while let Some(next_highlight) = row_highlights.get(ix + 1) {
12081 let highlight = &row_highlights[ix];
12082 if next_highlight
12083 .range
12084 .start
12085 .cmp(&highlight.range.end, &snapshot)
12086 .is_le()
12087 {
12088 if next_highlight
12089 .range
12090 .end
12091 .cmp(&highlight.range.end, &snapshot)
12092 .is_gt()
12093 {
12094 row_highlights[ix].range.end = next_highlight.range.end;
12095 }
12096 row_highlights.remove(ix + 1);
12097 } else {
12098 break;
12099 }
12100 }
12101 }
12102 }
12103
12104 /// Remove any highlighted row ranges of the given type that intersect the
12105 /// given ranges.
12106 pub fn remove_highlighted_rows<T: 'static>(
12107 &mut self,
12108 ranges_to_remove: Vec<Range<Anchor>>,
12109 cx: &mut ViewContext<Self>,
12110 ) {
12111 let snapshot = self.buffer().read(cx).snapshot(cx);
12112 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12113 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
12114 row_highlights.retain(|highlight| {
12115 while let Some(range_to_remove) = ranges_to_remove.peek() {
12116 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
12117 Ordering::Less | Ordering::Equal => {
12118 ranges_to_remove.next();
12119 }
12120 Ordering::Greater => {
12121 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
12122 Ordering::Less | Ordering::Equal => {
12123 return false;
12124 }
12125 Ordering::Greater => break,
12126 }
12127 }
12128 }
12129 }
12130
12131 true
12132 })
12133 }
12134
12135 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
12136 pub fn clear_row_highlights<T: 'static>(&mut self) {
12137 self.highlighted_rows.remove(&TypeId::of::<T>());
12138 }
12139
12140 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
12141 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
12142 self.highlighted_rows
12143 .get(&TypeId::of::<T>())
12144 .map_or(&[] as &[_], |vec| vec.as_slice())
12145 .iter()
12146 .map(|highlight| (highlight.range.clone(), highlight.color))
12147 }
12148
12149 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
12150 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
12151 /// Allows to ignore certain kinds of highlights.
12152 pub fn highlighted_display_rows(
12153 &mut self,
12154 cx: &mut WindowContext,
12155 ) -> BTreeMap<DisplayRow, Hsla> {
12156 let snapshot = self.snapshot(cx);
12157 let mut used_highlight_orders = HashMap::default();
12158 self.highlighted_rows
12159 .iter()
12160 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
12161 .fold(
12162 BTreeMap::<DisplayRow, Hsla>::new(),
12163 |mut unique_rows, highlight| {
12164 let start = highlight.range.start.to_display_point(&snapshot);
12165 let end = highlight.range.end.to_display_point(&snapshot);
12166 let start_row = start.row().0;
12167 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12168 && end.column() == 0
12169 {
12170 end.row().0.saturating_sub(1)
12171 } else {
12172 end.row().0
12173 };
12174 for row in start_row..=end_row {
12175 let used_index =
12176 used_highlight_orders.entry(row).or_insert(highlight.index);
12177 if highlight.index >= *used_index {
12178 *used_index = highlight.index;
12179 unique_rows.insert(DisplayRow(row), highlight.color);
12180 }
12181 }
12182 unique_rows
12183 },
12184 )
12185 }
12186
12187 pub fn highlighted_display_row_for_autoscroll(
12188 &self,
12189 snapshot: &DisplaySnapshot,
12190 ) -> Option<DisplayRow> {
12191 self.highlighted_rows
12192 .values()
12193 .flat_map(|highlighted_rows| highlighted_rows.iter())
12194 .filter_map(|highlight| {
12195 if highlight.should_autoscroll {
12196 Some(highlight.range.start.to_display_point(snapshot).row())
12197 } else {
12198 None
12199 }
12200 })
12201 .min()
12202 }
12203
12204 pub fn set_search_within_ranges(
12205 &mut self,
12206 ranges: &[Range<Anchor>],
12207 cx: &mut ViewContext<Self>,
12208 ) {
12209 self.highlight_background::<SearchWithinRange>(
12210 ranges,
12211 |colors| colors.editor_document_highlight_read_background,
12212 cx,
12213 )
12214 }
12215
12216 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12217 self.breadcrumb_header = Some(new_header);
12218 }
12219
12220 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12221 self.clear_background_highlights::<SearchWithinRange>(cx);
12222 }
12223
12224 pub fn highlight_background<T: 'static>(
12225 &mut self,
12226 ranges: &[Range<Anchor>],
12227 color_fetcher: fn(&ThemeColors) -> Hsla,
12228 cx: &mut ViewContext<Self>,
12229 ) {
12230 self.background_highlights
12231 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12232 self.scrollbar_marker_state.dirty = true;
12233 cx.notify();
12234 }
12235
12236 pub fn clear_background_highlights<T: 'static>(
12237 &mut self,
12238 cx: &mut ViewContext<Self>,
12239 ) -> Option<BackgroundHighlight> {
12240 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12241 if !text_highlights.1.is_empty() {
12242 self.scrollbar_marker_state.dirty = true;
12243 cx.notify();
12244 }
12245 Some(text_highlights)
12246 }
12247
12248 pub fn highlight_gutter<T: 'static>(
12249 &mut self,
12250 ranges: &[Range<Anchor>],
12251 color_fetcher: fn(&AppContext) -> Hsla,
12252 cx: &mut ViewContext<Self>,
12253 ) {
12254 self.gutter_highlights
12255 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12256 cx.notify();
12257 }
12258
12259 pub fn clear_gutter_highlights<T: 'static>(
12260 &mut self,
12261 cx: &mut ViewContext<Self>,
12262 ) -> Option<GutterHighlight> {
12263 cx.notify();
12264 self.gutter_highlights.remove(&TypeId::of::<T>())
12265 }
12266
12267 #[cfg(feature = "test-support")]
12268 pub fn all_text_background_highlights(
12269 &mut self,
12270 cx: &mut ViewContext<Self>,
12271 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12272 let snapshot = self.snapshot(cx);
12273 let buffer = &snapshot.buffer_snapshot;
12274 let start = buffer.anchor_before(0);
12275 let end = buffer.anchor_after(buffer.len());
12276 let theme = cx.theme().colors();
12277 self.background_highlights_in_range(start..end, &snapshot, theme)
12278 }
12279
12280 #[cfg(feature = "test-support")]
12281 pub fn search_background_highlights(
12282 &mut self,
12283 cx: &mut ViewContext<Self>,
12284 ) -> Vec<Range<Point>> {
12285 let snapshot = self.buffer().read(cx).snapshot(cx);
12286
12287 let highlights = self
12288 .background_highlights
12289 .get(&TypeId::of::<items::BufferSearchHighlights>());
12290
12291 if let Some((_color, ranges)) = highlights {
12292 ranges
12293 .iter()
12294 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12295 .collect_vec()
12296 } else {
12297 vec![]
12298 }
12299 }
12300
12301 fn document_highlights_for_position<'a>(
12302 &'a self,
12303 position: Anchor,
12304 buffer: &'a MultiBufferSnapshot,
12305 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12306 let read_highlights = self
12307 .background_highlights
12308 .get(&TypeId::of::<DocumentHighlightRead>())
12309 .map(|h| &h.1);
12310 let write_highlights = self
12311 .background_highlights
12312 .get(&TypeId::of::<DocumentHighlightWrite>())
12313 .map(|h| &h.1);
12314 let left_position = position.bias_left(buffer);
12315 let right_position = position.bias_right(buffer);
12316 read_highlights
12317 .into_iter()
12318 .chain(write_highlights)
12319 .flat_map(move |ranges| {
12320 let start_ix = match ranges.binary_search_by(|probe| {
12321 let cmp = probe.end.cmp(&left_position, buffer);
12322 if cmp.is_ge() {
12323 Ordering::Greater
12324 } else {
12325 Ordering::Less
12326 }
12327 }) {
12328 Ok(i) | Err(i) => i,
12329 };
12330
12331 ranges[start_ix..]
12332 .iter()
12333 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12334 })
12335 }
12336
12337 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12338 self.background_highlights
12339 .get(&TypeId::of::<T>())
12340 .map_or(false, |(_, highlights)| !highlights.is_empty())
12341 }
12342
12343 pub fn background_highlights_in_range(
12344 &self,
12345 search_range: Range<Anchor>,
12346 display_snapshot: &DisplaySnapshot,
12347 theme: &ThemeColors,
12348 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12349 let mut results = Vec::new();
12350 for (color_fetcher, ranges) in self.background_highlights.values() {
12351 let color = color_fetcher(theme);
12352 let start_ix = match ranges.binary_search_by(|probe| {
12353 let cmp = probe
12354 .end
12355 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12356 if cmp.is_gt() {
12357 Ordering::Greater
12358 } else {
12359 Ordering::Less
12360 }
12361 }) {
12362 Ok(i) | Err(i) => i,
12363 };
12364 for range in &ranges[start_ix..] {
12365 if range
12366 .start
12367 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12368 .is_ge()
12369 {
12370 break;
12371 }
12372
12373 let start = range.start.to_display_point(display_snapshot);
12374 let end = range.end.to_display_point(display_snapshot);
12375 results.push((start..end, color))
12376 }
12377 }
12378 results
12379 }
12380
12381 pub fn background_highlight_row_ranges<T: 'static>(
12382 &self,
12383 search_range: Range<Anchor>,
12384 display_snapshot: &DisplaySnapshot,
12385 count: usize,
12386 ) -> Vec<RangeInclusive<DisplayPoint>> {
12387 let mut results = Vec::new();
12388 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12389 return vec![];
12390 };
12391
12392 let start_ix = match ranges.binary_search_by(|probe| {
12393 let cmp = probe
12394 .end
12395 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12396 if cmp.is_gt() {
12397 Ordering::Greater
12398 } else {
12399 Ordering::Less
12400 }
12401 }) {
12402 Ok(i) | Err(i) => i,
12403 };
12404 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12405 if let (Some(start_display), Some(end_display)) = (start, end) {
12406 results.push(
12407 start_display.to_display_point(display_snapshot)
12408 ..=end_display.to_display_point(display_snapshot),
12409 );
12410 }
12411 };
12412 let mut start_row: Option<Point> = None;
12413 let mut end_row: Option<Point> = None;
12414 if ranges.len() > count {
12415 return Vec::new();
12416 }
12417 for range in &ranges[start_ix..] {
12418 if range
12419 .start
12420 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12421 .is_ge()
12422 {
12423 break;
12424 }
12425 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12426 if let Some(current_row) = &end_row {
12427 if end.row == current_row.row {
12428 continue;
12429 }
12430 }
12431 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12432 if start_row.is_none() {
12433 assert_eq!(end_row, None);
12434 start_row = Some(start);
12435 end_row = Some(end);
12436 continue;
12437 }
12438 if let Some(current_end) = end_row.as_mut() {
12439 if start.row > current_end.row + 1 {
12440 push_region(start_row, end_row);
12441 start_row = Some(start);
12442 end_row = Some(end);
12443 } else {
12444 // Merge two hunks.
12445 *current_end = end;
12446 }
12447 } else {
12448 unreachable!();
12449 }
12450 }
12451 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12452 push_region(start_row, end_row);
12453 results
12454 }
12455
12456 pub fn gutter_highlights_in_range(
12457 &self,
12458 search_range: Range<Anchor>,
12459 display_snapshot: &DisplaySnapshot,
12460 cx: &AppContext,
12461 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12462 let mut results = Vec::new();
12463 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12464 let color = color_fetcher(cx);
12465 let start_ix = match ranges.binary_search_by(|probe| {
12466 let cmp = probe
12467 .end
12468 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12469 if cmp.is_gt() {
12470 Ordering::Greater
12471 } else {
12472 Ordering::Less
12473 }
12474 }) {
12475 Ok(i) | Err(i) => i,
12476 };
12477 for range in &ranges[start_ix..] {
12478 if range
12479 .start
12480 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12481 .is_ge()
12482 {
12483 break;
12484 }
12485
12486 let start = range.start.to_display_point(display_snapshot);
12487 let end = range.end.to_display_point(display_snapshot);
12488 results.push((start..end, color))
12489 }
12490 }
12491 results
12492 }
12493
12494 /// Get the text ranges corresponding to the redaction query
12495 pub fn redacted_ranges(
12496 &self,
12497 search_range: Range<Anchor>,
12498 display_snapshot: &DisplaySnapshot,
12499 cx: &WindowContext,
12500 ) -> Vec<Range<DisplayPoint>> {
12501 display_snapshot
12502 .buffer_snapshot
12503 .redacted_ranges(search_range, |file| {
12504 if let Some(file) = file {
12505 file.is_private()
12506 && EditorSettings::get(
12507 Some(SettingsLocation {
12508 worktree_id: file.worktree_id(cx),
12509 path: file.path().as_ref(),
12510 }),
12511 cx,
12512 )
12513 .redact_private_values
12514 } else {
12515 false
12516 }
12517 })
12518 .map(|range| {
12519 range.start.to_display_point(display_snapshot)
12520 ..range.end.to_display_point(display_snapshot)
12521 })
12522 .collect()
12523 }
12524
12525 pub fn highlight_text<T: 'static>(
12526 &mut self,
12527 ranges: Vec<Range<Anchor>>,
12528 style: HighlightStyle,
12529 cx: &mut ViewContext<Self>,
12530 ) {
12531 self.display_map.update(cx, |map, _| {
12532 map.highlight_text(TypeId::of::<T>(), ranges, style)
12533 });
12534 cx.notify();
12535 }
12536
12537 pub(crate) fn highlight_inlays<T: 'static>(
12538 &mut self,
12539 highlights: Vec<InlayHighlight>,
12540 style: HighlightStyle,
12541 cx: &mut ViewContext<Self>,
12542 ) {
12543 self.display_map.update(cx, |map, _| {
12544 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12545 });
12546 cx.notify();
12547 }
12548
12549 pub fn text_highlights<'a, T: 'static>(
12550 &'a self,
12551 cx: &'a AppContext,
12552 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12553 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12554 }
12555
12556 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12557 let cleared = self
12558 .display_map
12559 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12560 if cleared {
12561 cx.notify();
12562 }
12563 }
12564
12565 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12566 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12567 && self.focus_handle.is_focused(cx)
12568 }
12569
12570 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12571 self.show_cursor_when_unfocused = is_enabled;
12572 cx.notify();
12573 }
12574
12575 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12576 cx.notify();
12577 }
12578
12579 fn on_buffer_event(
12580 &mut self,
12581 multibuffer: Model<MultiBuffer>,
12582 event: &multi_buffer::Event,
12583 cx: &mut ViewContext<Self>,
12584 ) {
12585 match event {
12586 multi_buffer::Event::Edited {
12587 singleton_buffer_edited,
12588 } => {
12589 self.scrollbar_marker_state.dirty = true;
12590 self.active_indent_guides_state.dirty = true;
12591 self.refresh_active_diagnostics(cx);
12592 self.refresh_code_actions(cx);
12593 if self.has_active_inline_completion(cx) {
12594 self.update_visible_inline_completion(cx);
12595 }
12596 cx.emit(EditorEvent::BufferEdited);
12597 cx.emit(SearchEvent::MatchesInvalidated);
12598 if *singleton_buffer_edited {
12599 if let Some(project) = &self.project {
12600 let project = project.read(cx);
12601 #[allow(clippy::mutable_key_type)]
12602 let languages_affected = multibuffer
12603 .read(cx)
12604 .all_buffers()
12605 .into_iter()
12606 .filter_map(|buffer| {
12607 let buffer = buffer.read(cx);
12608 let language = buffer.language()?;
12609 if project.is_local()
12610 && project.language_servers_for_buffer(buffer, cx).count() == 0
12611 {
12612 None
12613 } else {
12614 Some(language)
12615 }
12616 })
12617 .cloned()
12618 .collect::<HashSet<_>>();
12619 if !languages_affected.is_empty() {
12620 self.refresh_inlay_hints(
12621 InlayHintRefreshReason::BufferEdited(languages_affected),
12622 cx,
12623 );
12624 }
12625 }
12626 }
12627
12628 let Some(project) = &self.project else { return };
12629 let (telemetry, is_via_ssh) = {
12630 let project = project.read(cx);
12631 let telemetry = project.client().telemetry().clone();
12632 let is_via_ssh = project.is_via_ssh();
12633 (telemetry, is_via_ssh)
12634 };
12635 refresh_linked_ranges(self, cx);
12636 telemetry.log_edit_event("editor", is_via_ssh);
12637 }
12638 multi_buffer::Event::ExcerptsAdded {
12639 buffer,
12640 predecessor,
12641 excerpts,
12642 } => {
12643 self.tasks_update_task = Some(self.refresh_runnables(cx));
12644 cx.emit(EditorEvent::ExcerptsAdded {
12645 buffer: buffer.clone(),
12646 predecessor: *predecessor,
12647 excerpts: excerpts.clone(),
12648 });
12649 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12650 }
12651 multi_buffer::Event::ExcerptsRemoved { ids } => {
12652 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12653 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12654 }
12655 multi_buffer::Event::ExcerptsEdited { ids } => {
12656 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12657 }
12658 multi_buffer::Event::ExcerptsExpanded { ids } => {
12659 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12660 }
12661 multi_buffer::Event::Reparsed(buffer_id) => {
12662 self.tasks_update_task = Some(self.refresh_runnables(cx));
12663
12664 cx.emit(EditorEvent::Reparsed(*buffer_id));
12665 }
12666 multi_buffer::Event::LanguageChanged(buffer_id) => {
12667 linked_editing_ranges::refresh_linked_ranges(self, cx);
12668 cx.emit(EditorEvent::Reparsed(*buffer_id));
12669 cx.notify();
12670 }
12671 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12672 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12673 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12674 cx.emit(EditorEvent::TitleChanged)
12675 }
12676 multi_buffer::Event::DiffBaseChanged => {
12677 self.scrollbar_marker_state.dirty = true;
12678 cx.emit(EditorEvent::DiffBaseChanged);
12679 cx.notify();
12680 }
12681 multi_buffer::Event::DiffUpdated { buffer } => {
12682 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12683 cx.notify();
12684 }
12685 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12686 multi_buffer::Event::DiagnosticsUpdated => {
12687 self.refresh_active_diagnostics(cx);
12688 self.scrollbar_marker_state.dirty = true;
12689 cx.notify();
12690 }
12691 _ => {}
12692 };
12693 }
12694
12695 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12696 cx.notify();
12697 }
12698
12699 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12700 self.tasks_update_task = Some(self.refresh_runnables(cx));
12701 self.refresh_inline_completion(true, false, cx);
12702 self.refresh_inlay_hints(
12703 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12704 self.selections.newest_anchor().head(),
12705 &self.buffer.read(cx).snapshot(cx),
12706 cx,
12707 )),
12708 cx,
12709 );
12710
12711 let old_cursor_shape = self.cursor_shape;
12712
12713 {
12714 let editor_settings = EditorSettings::get_global(cx);
12715 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12716 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12717 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12718 }
12719
12720 if old_cursor_shape != self.cursor_shape {
12721 cx.emit(EditorEvent::CursorShapeChanged);
12722 }
12723
12724 let project_settings = ProjectSettings::get_global(cx);
12725 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12726
12727 if self.mode == EditorMode::Full {
12728 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12729 if self.git_blame_inline_enabled != inline_blame_enabled {
12730 self.toggle_git_blame_inline_internal(false, cx);
12731 }
12732 }
12733
12734 cx.notify();
12735 }
12736
12737 pub fn set_searchable(&mut self, searchable: bool) {
12738 self.searchable = searchable;
12739 }
12740
12741 pub fn searchable(&self) -> bool {
12742 self.searchable
12743 }
12744
12745 fn open_proposed_changes_editor(
12746 &mut self,
12747 _: &OpenProposedChangesEditor,
12748 cx: &mut ViewContext<Self>,
12749 ) {
12750 let Some(workspace) = self.workspace() else {
12751 cx.propagate();
12752 return;
12753 };
12754
12755 let selections = self.selections.all::<usize>(cx);
12756 let buffer = self.buffer.read(cx);
12757 let mut new_selections_by_buffer = HashMap::default();
12758 for selection in selections {
12759 for (buffer, range, _) in
12760 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12761 {
12762 let mut range = range.to_point(buffer.read(cx));
12763 range.start.column = 0;
12764 range.end.column = buffer.read(cx).line_len(range.end.row);
12765 new_selections_by_buffer
12766 .entry(buffer)
12767 .or_insert(Vec::new())
12768 .push(range)
12769 }
12770 }
12771
12772 let proposed_changes_buffers = new_selections_by_buffer
12773 .into_iter()
12774 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12775 .collect::<Vec<_>>();
12776 let proposed_changes_editor = cx.new_view(|cx| {
12777 ProposedChangesEditor::new(
12778 "Proposed changes",
12779 proposed_changes_buffers,
12780 self.project.clone(),
12781 cx,
12782 )
12783 });
12784
12785 cx.window_context().defer(move |cx| {
12786 workspace.update(cx, |workspace, cx| {
12787 workspace.active_pane().update(cx, |pane, cx| {
12788 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12789 });
12790 });
12791 });
12792 }
12793
12794 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12795 self.open_excerpts_common(None, true, cx)
12796 }
12797
12798 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12799 self.open_excerpts_common(None, false, cx)
12800 }
12801
12802 fn open_excerpts_common(
12803 &mut self,
12804 jump_data: Option<JumpData>,
12805 split: bool,
12806 cx: &mut ViewContext<Self>,
12807 ) {
12808 let Some(workspace) = self.workspace() else {
12809 cx.propagate();
12810 return;
12811 };
12812
12813 if self.buffer.read(cx).is_singleton() {
12814 cx.propagate();
12815 return;
12816 }
12817
12818 let mut new_selections_by_buffer = HashMap::default();
12819 match &jump_data {
12820 Some(jump_data) => {
12821 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12822 if let Some(buffer) = multi_buffer_snapshot
12823 .buffer_id_for_excerpt(jump_data.excerpt_id)
12824 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12825 {
12826 let buffer_snapshot = buffer.read(cx).snapshot();
12827 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12828 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12829 } else {
12830 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12831 };
12832 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12833 new_selections_by_buffer.insert(
12834 buffer,
12835 (
12836 vec![jump_to_offset..jump_to_offset],
12837 Some(jump_data.line_offset_from_top),
12838 ),
12839 );
12840 }
12841 }
12842 None => {
12843 let selections = self.selections.all::<usize>(cx);
12844 let buffer = self.buffer.read(cx);
12845 for selection in selections {
12846 for (mut buffer_handle, mut range, _) in
12847 buffer.range_to_buffer_ranges(selection.range(), cx)
12848 {
12849 // When editing branch buffers, jump to the corresponding location
12850 // in their base buffer.
12851 let buffer = buffer_handle.read(cx);
12852 if let Some(base_buffer) = buffer.diff_base_buffer() {
12853 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12854 buffer_handle = base_buffer;
12855 }
12856
12857 if selection.reversed {
12858 mem::swap(&mut range.start, &mut range.end);
12859 }
12860 new_selections_by_buffer
12861 .entry(buffer_handle)
12862 .or_insert((Vec::new(), None))
12863 .0
12864 .push(range)
12865 }
12866 }
12867 }
12868 }
12869
12870 if new_selections_by_buffer.is_empty() {
12871 return;
12872 }
12873
12874 // We defer the pane interaction because we ourselves are a workspace item
12875 // and activating a new item causes the pane to call a method on us reentrantly,
12876 // which panics if we're on the stack.
12877 cx.window_context().defer(move |cx| {
12878 workspace.update(cx, |workspace, cx| {
12879 let pane = if split {
12880 workspace.adjacent_pane(cx)
12881 } else {
12882 workspace.active_pane().clone()
12883 };
12884
12885 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12886 let editor =
12887 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12888 editor.update(cx, |editor, cx| {
12889 let autoscroll = match scroll_offset {
12890 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12891 None => Autoscroll::newest(),
12892 };
12893 let nav_history = editor.nav_history.take();
12894 editor.change_selections(Some(autoscroll), cx, |s| {
12895 s.select_ranges(ranges);
12896 });
12897 editor.nav_history = nav_history;
12898 });
12899 }
12900 })
12901 });
12902 }
12903
12904 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12905 let snapshot = self.buffer.read(cx).read(cx);
12906 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12907 Some(
12908 ranges
12909 .iter()
12910 .map(move |range| {
12911 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12912 })
12913 .collect(),
12914 )
12915 }
12916
12917 fn selection_replacement_ranges(
12918 &self,
12919 range: Range<OffsetUtf16>,
12920 cx: &mut AppContext,
12921 ) -> Vec<Range<OffsetUtf16>> {
12922 let selections = self.selections.all::<OffsetUtf16>(cx);
12923 let newest_selection = selections
12924 .iter()
12925 .max_by_key(|selection| selection.id)
12926 .unwrap();
12927 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12928 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12929 let snapshot = self.buffer.read(cx).read(cx);
12930 selections
12931 .into_iter()
12932 .map(|mut selection| {
12933 selection.start.0 =
12934 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12935 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12936 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12937 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12938 })
12939 .collect()
12940 }
12941
12942 fn report_editor_event(
12943 &self,
12944 operation: &'static str,
12945 file_extension: Option<String>,
12946 cx: &AppContext,
12947 ) {
12948 if cfg!(any(test, feature = "test-support")) {
12949 return;
12950 }
12951
12952 let Some(project) = &self.project else { return };
12953
12954 // If None, we are in a file without an extension
12955 let file = self
12956 .buffer
12957 .read(cx)
12958 .as_singleton()
12959 .and_then(|b| b.read(cx).file());
12960 let file_extension = file_extension.or(file
12961 .as_ref()
12962 .and_then(|file| Path::new(file.file_name(cx)).extension())
12963 .and_then(|e| e.to_str())
12964 .map(|a| a.to_string()));
12965
12966 let vim_mode = cx
12967 .global::<SettingsStore>()
12968 .raw_user_settings()
12969 .get("vim_mode")
12970 == Some(&serde_json::Value::Bool(true));
12971
12972 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12973 == language::language_settings::InlineCompletionProvider::Copilot;
12974 let copilot_enabled_for_language = self
12975 .buffer
12976 .read(cx)
12977 .settings_at(0, cx)
12978 .show_inline_completions;
12979
12980 let project = project.read(cx);
12981 let telemetry = project.client().telemetry().clone();
12982 telemetry.report_editor_event(
12983 file_extension,
12984 vim_mode,
12985 operation,
12986 copilot_enabled,
12987 copilot_enabled_for_language,
12988 project.is_via_ssh(),
12989 )
12990 }
12991
12992 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12993 /// with each line being an array of {text, highlight} objects.
12994 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12995 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12996 return;
12997 };
12998
12999 #[derive(Serialize)]
13000 struct Chunk<'a> {
13001 text: String,
13002 highlight: Option<&'a str>,
13003 }
13004
13005 let snapshot = buffer.read(cx).snapshot();
13006 let range = self
13007 .selected_text_range(false, cx)
13008 .and_then(|selection| {
13009 if selection.range.is_empty() {
13010 None
13011 } else {
13012 Some(selection.range)
13013 }
13014 })
13015 .unwrap_or_else(|| 0..snapshot.len());
13016
13017 let chunks = snapshot.chunks(range, true);
13018 let mut lines = Vec::new();
13019 let mut line: VecDeque<Chunk> = VecDeque::new();
13020
13021 let Some(style) = self.style.as_ref() else {
13022 return;
13023 };
13024
13025 for chunk in chunks {
13026 let highlight = chunk
13027 .syntax_highlight_id
13028 .and_then(|id| id.name(&style.syntax));
13029 let mut chunk_lines = chunk.text.split('\n').peekable();
13030 while let Some(text) = chunk_lines.next() {
13031 let mut merged_with_last_token = false;
13032 if let Some(last_token) = line.back_mut() {
13033 if last_token.highlight == highlight {
13034 last_token.text.push_str(text);
13035 merged_with_last_token = true;
13036 }
13037 }
13038
13039 if !merged_with_last_token {
13040 line.push_back(Chunk {
13041 text: text.into(),
13042 highlight,
13043 });
13044 }
13045
13046 if chunk_lines.peek().is_some() {
13047 if line.len() > 1 && line.front().unwrap().text.is_empty() {
13048 line.pop_front();
13049 }
13050 if line.len() > 1 && line.back().unwrap().text.is_empty() {
13051 line.pop_back();
13052 }
13053
13054 lines.push(mem::take(&mut line));
13055 }
13056 }
13057 }
13058
13059 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
13060 return;
13061 };
13062 cx.write_to_clipboard(ClipboardItem::new_string(lines));
13063 }
13064
13065 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
13066 &self.inlay_hint_cache
13067 }
13068
13069 pub fn replay_insert_event(
13070 &mut self,
13071 text: &str,
13072 relative_utf16_range: Option<Range<isize>>,
13073 cx: &mut ViewContext<Self>,
13074 ) {
13075 if !self.input_enabled {
13076 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13077 return;
13078 }
13079 if let Some(relative_utf16_range) = relative_utf16_range {
13080 let selections = self.selections.all::<OffsetUtf16>(cx);
13081 self.change_selections(None, cx, |s| {
13082 let new_ranges = selections.into_iter().map(|range| {
13083 let start = OffsetUtf16(
13084 range
13085 .head()
13086 .0
13087 .saturating_add_signed(relative_utf16_range.start),
13088 );
13089 let end = OffsetUtf16(
13090 range
13091 .head()
13092 .0
13093 .saturating_add_signed(relative_utf16_range.end),
13094 );
13095 start..end
13096 });
13097 s.select_ranges(new_ranges);
13098 });
13099 }
13100
13101 self.handle_input(text, cx);
13102 }
13103
13104 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
13105 let Some(provider) = self.semantics_provider.as_ref() else {
13106 return false;
13107 };
13108
13109 let mut supports = false;
13110 self.buffer().read(cx).for_each_buffer(|buffer| {
13111 supports |= provider.supports_inlay_hints(buffer, cx);
13112 });
13113 supports
13114 }
13115
13116 pub fn focus(&self, cx: &mut WindowContext) {
13117 cx.focus(&self.focus_handle)
13118 }
13119
13120 pub fn is_focused(&self, cx: &WindowContext) -> bool {
13121 self.focus_handle.is_focused(cx)
13122 }
13123
13124 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
13125 cx.emit(EditorEvent::Focused);
13126
13127 if let Some(descendant) = self
13128 .last_focused_descendant
13129 .take()
13130 .and_then(|descendant| descendant.upgrade())
13131 {
13132 cx.focus(&descendant);
13133 } else {
13134 if let Some(blame) = self.blame.as_ref() {
13135 blame.update(cx, GitBlame::focus)
13136 }
13137
13138 self.blink_manager.update(cx, BlinkManager::enable);
13139 self.show_cursor_names(cx);
13140 self.buffer.update(cx, |buffer, cx| {
13141 buffer.finalize_last_transaction(cx);
13142 if self.leader_peer_id.is_none() {
13143 buffer.set_active_selections(
13144 &self.selections.disjoint_anchors(),
13145 self.selections.line_mode,
13146 self.cursor_shape,
13147 cx,
13148 );
13149 }
13150 });
13151 }
13152 }
13153
13154 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13155 cx.emit(EditorEvent::FocusedIn)
13156 }
13157
13158 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13159 if event.blurred != self.focus_handle {
13160 self.last_focused_descendant = Some(event.blurred);
13161 }
13162 }
13163
13164 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13165 self.blink_manager.update(cx, BlinkManager::disable);
13166 self.buffer
13167 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13168
13169 if let Some(blame) = self.blame.as_ref() {
13170 blame.update(cx, GitBlame::blur)
13171 }
13172 if !self.hover_state.focused(cx) {
13173 hide_hover(self, cx);
13174 }
13175
13176 self.hide_context_menu(cx);
13177 cx.emit(EditorEvent::Blurred);
13178 cx.notify();
13179 }
13180
13181 pub fn register_action<A: Action>(
13182 &mut self,
13183 listener: impl Fn(&A, &mut WindowContext) + 'static,
13184 ) -> Subscription {
13185 let id = self.next_editor_action_id.post_inc();
13186 let listener = Arc::new(listener);
13187 self.editor_actions.borrow_mut().insert(
13188 id,
13189 Box::new(move |cx| {
13190 let cx = cx.window_context();
13191 let listener = listener.clone();
13192 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13193 let action = action.downcast_ref().unwrap();
13194 if phase == DispatchPhase::Bubble {
13195 listener(action, cx)
13196 }
13197 })
13198 }),
13199 );
13200
13201 let editor_actions = self.editor_actions.clone();
13202 Subscription::new(move || {
13203 editor_actions.borrow_mut().remove(&id);
13204 })
13205 }
13206
13207 pub fn file_header_size(&self) -> u32 {
13208 FILE_HEADER_HEIGHT
13209 }
13210
13211 pub fn revert(
13212 &mut self,
13213 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13214 cx: &mut ViewContext<Self>,
13215 ) {
13216 self.buffer().update(cx, |multi_buffer, cx| {
13217 for (buffer_id, changes) in revert_changes {
13218 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13219 buffer.update(cx, |buffer, cx| {
13220 buffer.edit(
13221 changes.into_iter().map(|(range, text)| {
13222 (range, text.to_string().map(Arc::<str>::from))
13223 }),
13224 None,
13225 cx,
13226 );
13227 });
13228 }
13229 }
13230 });
13231 self.change_selections(None, cx, |selections| selections.refresh());
13232 }
13233
13234 pub fn to_pixel_point(
13235 &mut self,
13236 source: multi_buffer::Anchor,
13237 editor_snapshot: &EditorSnapshot,
13238 cx: &mut ViewContext<Self>,
13239 ) -> Option<gpui::Point<Pixels>> {
13240 let source_point = source.to_display_point(editor_snapshot);
13241 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13242 }
13243
13244 pub fn display_to_pixel_point(
13245 &mut self,
13246 source: DisplayPoint,
13247 editor_snapshot: &EditorSnapshot,
13248 cx: &mut ViewContext<Self>,
13249 ) -> Option<gpui::Point<Pixels>> {
13250 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13251 let text_layout_details = self.text_layout_details(cx);
13252 let scroll_top = text_layout_details
13253 .scroll_anchor
13254 .scroll_position(editor_snapshot)
13255 .y;
13256
13257 if source.row().as_f32() < scroll_top.floor() {
13258 return None;
13259 }
13260 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13261 let source_y = line_height * (source.row().as_f32() - scroll_top);
13262 Some(gpui::Point::new(source_x, source_y))
13263 }
13264
13265 pub fn has_active_completions_menu(&self) -> bool {
13266 self.context_menu.read().as_ref().map_or(false, |menu| {
13267 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13268 })
13269 }
13270
13271 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13272 self.addons
13273 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13274 }
13275
13276 pub fn unregister_addon<T: Addon>(&mut self) {
13277 self.addons.remove(&std::any::TypeId::of::<T>());
13278 }
13279
13280 pub fn addon<T: Addon>(&self) -> Option<&T> {
13281 let type_id = std::any::TypeId::of::<T>();
13282 self.addons
13283 .get(&type_id)
13284 .and_then(|item| item.to_any().downcast_ref::<T>())
13285 }
13286}
13287
13288fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13289 let tab_size = tab_size.get() as usize;
13290 let mut width = offset;
13291
13292 for ch in text.chars() {
13293 width += if ch == '\t' {
13294 tab_size - (width % tab_size)
13295 } else {
13296 1
13297 };
13298 }
13299
13300 width - offset
13301}
13302
13303#[cfg(test)]
13304mod tests {
13305 use super::*;
13306
13307 #[test]
13308 fn test_string_size_with_expanded_tabs() {
13309 let nz = |val| NonZeroU32::new(val).unwrap();
13310 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13311 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13312 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13313 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13314 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13315 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13316 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13317 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13318 }
13319}
13320
13321/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13322struct WordBreakingTokenizer<'a> {
13323 input: &'a str,
13324}
13325
13326impl<'a> WordBreakingTokenizer<'a> {
13327 fn new(input: &'a str) -> Self {
13328 Self { input }
13329 }
13330}
13331
13332fn is_char_ideographic(ch: char) -> bool {
13333 use unicode_script::Script::*;
13334 use unicode_script::UnicodeScript;
13335 matches!(ch.script(), Han | Tangut | Yi)
13336}
13337
13338fn is_grapheme_ideographic(text: &str) -> bool {
13339 text.chars().any(is_char_ideographic)
13340}
13341
13342fn is_grapheme_whitespace(text: &str) -> bool {
13343 text.chars().any(|x| x.is_whitespace())
13344}
13345
13346fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13347 text.chars().next().map_or(false, |ch| {
13348 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13349 })
13350}
13351
13352#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13353struct WordBreakToken<'a> {
13354 token: &'a str,
13355 grapheme_len: usize,
13356 is_whitespace: bool,
13357}
13358
13359impl<'a> Iterator for WordBreakingTokenizer<'a> {
13360 /// Yields a span, the count of graphemes in the token, and whether it was
13361 /// whitespace. Note that it also breaks at word boundaries.
13362 type Item = WordBreakToken<'a>;
13363
13364 fn next(&mut self) -> Option<Self::Item> {
13365 use unicode_segmentation::UnicodeSegmentation;
13366 if self.input.is_empty() {
13367 return None;
13368 }
13369
13370 let mut iter = self.input.graphemes(true).peekable();
13371 let mut offset = 0;
13372 let mut graphemes = 0;
13373 if let Some(first_grapheme) = iter.next() {
13374 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13375 offset += first_grapheme.len();
13376 graphemes += 1;
13377 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13378 if let Some(grapheme) = iter.peek().copied() {
13379 if should_stay_with_preceding_ideograph(grapheme) {
13380 offset += grapheme.len();
13381 graphemes += 1;
13382 }
13383 }
13384 } else {
13385 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13386 let mut next_word_bound = words.peek().copied();
13387 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13388 next_word_bound = words.next();
13389 }
13390 while let Some(grapheme) = iter.peek().copied() {
13391 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13392 break;
13393 };
13394 if is_grapheme_whitespace(grapheme) != is_whitespace {
13395 break;
13396 };
13397 offset += grapheme.len();
13398 graphemes += 1;
13399 iter.next();
13400 }
13401 }
13402 let token = &self.input[..offset];
13403 self.input = &self.input[offset..];
13404 if is_whitespace {
13405 Some(WordBreakToken {
13406 token: " ",
13407 grapheme_len: 1,
13408 is_whitespace: true,
13409 })
13410 } else {
13411 Some(WordBreakToken {
13412 token,
13413 grapheme_len: graphemes,
13414 is_whitespace: false,
13415 })
13416 }
13417 } else {
13418 None
13419 }
13420 }
13421}
13422
13423#[test]
13424fn test_word_breaking_tokenizer() {
13425 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13426 ("", &[]),
13427 (" ", &[(" ", 1, true)]),
13428 ("Ʒ", &[("Ʒ", 1, false)]),
13429 ("Ǽ", &[("Ǽ", 1, false)]),
13430 ("⋑", &[("⋑", 1, false)]),
13431 ("⋑⋑", &[("⋑⋑", 2, false)]),
13432 (
13433 "原理，进而",
13434 &[
13435 ("原", 1, false),
13436 ("理，", 2, false),
13437 ("进", 1, false),
13438 ("而", 1, false),
13439 ],
13440 ),
13441 (
13442 "hello world",
13443 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13444 ),
13445 (
13446 "hello, world",
13447 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13448 ),
13449 (
13450 " hello world",
13451 &[
13452 (" ", 1, true),
13453 ("hello", 5, false),
13454 (" ", 1, true),
13455 ("world", 5, false),
13456 ],
13457 ),
13458 (
13459 "这是什么 \n 钢笔",
13460 &[
13461 ("这", 1, false),
13462 ("是", 1, false),
13463 ("什", 1, false),
13464 ("么", 1, false),
13465 (" ", 1, true),
13466 ("钢", 1, false),
13467 ("笔", 1, false),
13468 ],
13469 ),
13470 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13471 ];
13472
13473 for (input, result) in tests {
13474 assert_eq!(
13475 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13476 result
13477 .iter()
13478 .copied()
13479 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13480 token,
13481 grapheme_len,
13482 is_whitespace,
13483 })
13484 .collect::<Vec<_>>()
13485 );
13486 }
13487}
13488
13489fn wrap_with_prefix(
13490 line_prefix: String,
13491 unwrapped_text: String,
13492 wrap_column: usize,
13493 tab_size: NonZeroU32,
13494) -> String {
13495 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13496 let mut wrapped_text = String::new();
13497 let mut current_line = line_prefix.clone();
13498
13499 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13500 let mut current_line_len = line_prefix_len;
13501 for WordBreakToken {
13502 token,
13503 grapheme_len,
13504 is_whitespace,
13505 } in tokenizer
13506 {
13507 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13508 wrapped_text.push_str(current_line.trim_end());
13509 wrapped_text.push('\n');
13510 current_line.truncate(line_prefix.len());
13511 current_line_len = line_prefix_len;
13512 if !is_whitespace {
13513 current_line.push_str(token);
13514 current_line_len += grapheme_len;
13515 }
13516 } else if !is_whitespace {
13517 current_line.push_str(token);
13518 current_line_len += grapheme_len;
13519 } else if current_line_len != line_prefix_len {
13520 current_line.push(' ');
13521 current_line_len += 1;
13522 }
13523 }
13524
13525 if !current_line.is_empty() {
13526 wrapped_text.push_str(¤t_line);
13527 }
13528 wrapped_text
13529}
13530
13531#[test]
13532fn test_wrap_with_prefix() {
13533 assert_eq!(
13534 wrap_with_prefix(
13535 "# ".to_string(),
13536 "abcdefg".to_string(),
13537 4,
13538 NonZeroU32::new(4).unwrap()
13539 ),
13540 "# abcdefg"
13541 );
13542 assert_eq!(
13543 wrap_with_prefix(
13544 "".to_string(),
13545 "\thello world".to_string(),
13546 8,
13547 NonZeroU32::new(4).unwrap()
13548 ),
13549 "hello\nworld"
13550 );
13551 assert_eq!(
13552 wrap_with_prefix(
13553 "// ".to_string(),
13554 "xx \nyy zz aa bb cc".to_string(),
13555 12,
13556 NonZeroU32::new(4).unwrap()
13557 ),
13558 "// xx yy zz\n// aa bb cc"
13559 );
13560 assert_eq!(
13561 wrap_with_prefix(
13562 String::new(),
13563 "这是什么 \n 钢笔".to_string(),
13564 3,
13565 NonZeroU32::new(4).unwrap()
13566 ),
13567 "这是什\n么 钢\n笔"
13568 );
13569}
13570
13571fn hunks_for_selections(
13572 multi_buffer_snapshot: &MultiBufferSnapshot,
13573 selections: &[Selection<Anchor>],
13574) -> Vec<MultiBufferDiffHunk> {
13575 let buffer_rows_for_selections = selections.iter().map(|selection| {
13576 let head = selection.head();
13577 let tail = selection.tail();
13578 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13579 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13580 if start > end {
13581 end..start
13582 } else {
13583 start..end
13584 }
13585 });
13586
13587 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13588}
13589
13590pub fn hunks_for_rows(
13591 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13592 multi_buffer_snapshot: &MultiBufferSnapshot,
13593) -> Vec<MultiBufferDiffHunk> {
13594 let mut hunks = Vec::new();
13595 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13596 HashMap::default();
13597 for selected_multi_buffer_rows in rows {
13598 let query_rows =
13599 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13600 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13601 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13602 // when the caret is just above or just below the deleted hunk.
13603 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13604 let related_to_selection = if allow_adjacent {
13605 hunk.row_range.overlaps(&query_rows)
13606 || hunk.row_range.start == query_rows.end
13607 || hunk.row_range.end == query_rows.start
13608 } else {
13609 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13610 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13611 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13612 || selected_multi_buffer_rows.end == hunk.row_range.start
13613 };
13614 if related_to_selection {
13615 if !processed_buffer_rows
13616 .entry(hunk.buffer_id)
13617 .or_default()
13618 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13619 {
13620 continue;
13621 }
13622 hunks.push(hunk);
13623 }
13624 }
13625 }
13626
13627 hunks
13628}
13629
13630pub trait CollaborationHub {
13631 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13632 fn user_participant_indices<'a>(
13633 &self,
13634 cx: &'a AppContext,
13635 ) -> &'a HashMap<u64, ParticipantIndex>;
13636 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13637}
13638
13639impl CollaborationHub for Model<Project> {
13640 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13641 self.read(cx).collaborators()
13642 }
13643
13644 fn user_participant_indices<'a>(
13645 &self,
13646 cx: &'a AppContext,
13647 ) -> &'a HashMap<u64, ParticipantIndex> {
13648 self.read(cx).user_store().read(cx).participant_indices()
13649 }
13650
13651 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13652 let this = self.read(cx);
13653 let user_ids = this.collaborators().values().map(|c| c.user_id);
13654 this.user_store().read_with(cx, |user_store, cx| {
13655 user_store.participant_names(user_ids, cx)
13656 })
13657 }
13658}
13659
13660pub trait SemanticsProvider {
13661 fn hover(
13662 &self,
13663 buffer: &Model<Buffer>,
13664 position: text::Anchor,
13665 cx: &mut AppContext,
13666 ) -> Option<Task<Vec<project::Hover>>>;
13667
13668 fn inlay_hints(
13669 &self,
13670 buffer_handle: Model<Buffer>,
13671 range: Range<text::Anchor>,
13672 cx: &mut AppContext,
13673 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13674
13675 fn resolve_inlay_hint(
13676 &self,
13677 hint: InlayHint,
13678 buffer_handle: Model<Buffer>,
13679 server_id: LanguageServerId,
13680 cx: &mut AppContext,
13681 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13682
13683 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13684
13685 fn document_highlights(
13686 &self,
13687 buffer: &Model<Buffer>,
13688 position: text::Anchor,
13689 cx: &mut AppContext,
13690 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13691
13692 fn definitions(
13693 &self,
13694 buffer: &Model<Buffer>,
13695 position: text::Anchor,
13696 kind: GotoDefinitionKind,
13697 cx: &mut AppContext,
13698 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13699
13700 fn range_for_rename(
13701 &self,
13702 buffer: &Model<Buffer>,
13703 position: text::Anchor,
13704 cx: &mut AppContext,
13705 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13706
13707 fn perform_rename(
13708 &self,
13709 buffer: &Model<Buffer>,
13710 position: text::Anchor,
13711 new_name: String,
13712 cx: &mut AppContext,
13713 ) -> Option<Task<Result<ProjectTransaction>>>;
13714}
13715
13716pub trait CompletionProvider {
13717 fn completions(
13718 &self,
13719 buffer: &Model<Buffer>,
13720 buffer_position: text::Anchor,
13721 trigger: CompletionContext,
13722 cx: &mut ViewContext<Editor>,
13723 ) -> Task<Result<Vec<Completion>>>;
13724
13725 fn resolve_completions(
13726 &self,
13727 buffer: Model<Buffer>,
13728 completion_indices: Vec<usize>,
13729 completions: Arc<RwLock<Box<[Completion]>>>,
13730 cx: &mut ViewContext<Editor>,
13731 ) -> Task<Result<bool>>;
13732
13733 fn apply_additional_edits_for_completion(
13734 &self,
13735 buffer: Model<Buffer>,
13736 completion: Completion,
13737 push_to_history: bool,
13738 cx: &mut ViewContext<Editor>,
13739 ) -> Task<Result<Option<language::Transaction>>>;
13740
13741 fn is_completion_trigger(
13742 &self,
13743 buffer: &Model<Buffer>,
13744 position: language::Anchor,
13745 text: &str,
13746 trigger_in_words: bool,
13747 cx: &mut ViewContext<Editor>,
13748 ) -> bool;
13749
13750 fn sort_completions(&self) -> bool {
13751 true
13752 }
13753}
13754
13755pub trait CodeActionProvider {
13756 fn code_actions(
13757 &self,
13758 buffer: &Model<Buffer>,
13759 range: Range<text::Anchor>,
13760 cx: &mut WindowContext,
13761 ) -> Task<Result<Vec<CodeAction>>>;
13762
13763 fn apply_code_action(
13764 &self,
13765 buffer_handle: Model<Buffer>,
13766 action: CodeAction,
13767 excerpt_id: ExcerptId,
13768 push_to_history: bool,
13769 cx: &mut WindowContext,
13770 ) -> Task<Result<ProjectTransaction>>;
13771}
13772
13773impl CodeActionProvider for Model<Project> {
13774 fn code_actions(
13775 &self,
13776 buffer: &Model<Buffer>,
13777 range: Range<text::Anchor>,
13778 cx: &mut WindowContext,
13779 ) -> Task<Result<Vec<CodeAction>>> {
13780 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13781 }
13782
13783 fn apply_code_action(
13784 &self,
13785 buffer_handle: Model<Buffer>,
13786 action: CodeAction,
13787 _excerpt_id: ExcerptId,
13788 push_to_history: bool,
13789 cx: &mut WindowContext,
13790 ) -> Task<Result<ProjectTransaction>> {
13791 self.update(cx, |project, cx| {
13792 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13793 })
13794 }
13795}
13796
13797fn snippet_completions(
13798 project: &Project,
13799 buffer: &Model<Buffer>,
13800 buffer_position: text::Anchor,
13801 cx: &mut AppContext,
13802) -> Vec<Completion> {
13803 let language = buffer.read(cx).language_at(buffer_position);
13804 let language_name = language.as_ref().map(|language| language.lsp_id());
13805 let snippet_store = project.snippets().read(cx);
13806 let snippets = snippet_store.snippets_for(language_name, cx);
13807
13808 if snippets.is_empty() {
13809 return vec![];
13810 }
13811 let snapshot = buffer.read(cx).text_snapshot();
13812 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13813
13814 let scope = language.map(|language| language.default_scope());
13815 let classifier = CharClassifier::new(scope).for_completion(true);
13816 let mut last_word = chars
13817 .take_while(|c| classifier.is_word(*c))
13818 .collect::<String>();
13819 last_word = last_word.chars().rev().collect();
13820 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13821 let to_lsp = |point: &text::Anchor| {
13822 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13823 point_to_lsp(end)
13824 };
13825 let lsp_end = to_lsp(&buffer_position);
13826 snippets
13827 .into_iter()
13828 .filter_map(|snippet| {
13829 let matching_prefix = snippet
13830 .prefix
13831 .iter()
13832 .find(|prefix| prefix.starts_with(&last_word))?;
13833 let start = as_offset - last_word.len();
13834 let start = snapshot.anchor_before(start);
13835 let range = start..buffer_position;
13836 let lsp_start = to_lsp(&start);
13837 let lsp_range = lsp::Range {
13838 start: lsp_start,
13839 end: lsp_end,
13840 };
13841 Some(Completion {
13842 old_range: range,
13843 new_text: snippet.body.clone(),
13844 label: CodeLabel {
13845 text: matching_prefix.clone(),
13846 runs: vec![],
13847 filter_range: 0..matching_prefix.len(),
13848 },
13849 server_id: LanguageServerId(usize::MAX),
13850 documentation: snippet.description.clone().map(Documentation::SingleLine),
13851 lsp_completion: lsp::CompletionItem {
13852 label: snippet.prefix.first().unwrap().clone(),
13853 kind: Some(CompletionItemKind::SNIPPET),
13854 label_details: snippet.description.as_ref().map(|description| {
13855 lsp::CompletionItemLabelDetails {
13856 detail: Some(description.clone()),
13857 description: None,
13858 }
13859 }),
13860 insert_text_format: Some(InsertTextFormat::SNIPPET),
13861 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13862 lsp::InsertReplaceEdit {
13863 new_text: snippet.body.clone(),
13864 insert: lsp_range,
13865 replace: lsp_range,
13866 },
13867 )),
13868 filter_text: Some(snippet.body.clone()),
13869 sort_text: Some(char::MAX.to_string()),
13870 ..Default::default()
13871 },
13872 confirm: None,
13873 })
13874 })
13875 .collect()
13876}
13877
13878impl CompletionProvider for Model<Project> {
13879 fn completions(
13880 &self,
13881 buffer: &Model<Buffer>,
13882 buffer_position: text::Anchor,
13883 options: CompletionContext,
13884 cx: &mut ViewContext<Editor>,
13885 ) -> Task<Result<Vec<Completion>>> {
13886 self.update(cx, |project, cx| {
13887 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13888 let project_completions = project.completions(buffer, buffer_position, options, cx);
13889 cx.background_executor().spawn(async move {
13890 let mut completions = project_completions.await?;
13891 //let snippets = snippets.into_iter().;
13892 completions.extend(snippets);
13893 Ok(completions)
13894 })
13895 })
13896 }
13897
13898 fn resolve_completions(
13899 &self,
13900 buffer: Model<Buffer>,
13901 completion_indices: Vec<usize>,
13902 completions: Arc<RwLock<Box<[Completion]>>>,
13903 cx: &mut ViewContext<Editor>,
13904 ) -> Task<Result<bool>> {
13905 self.update(cx, |project, cx| {
13906 project.resolve_completions(buffer, completion_indices, completions, cx)
13907 })
13908 }
13909
13910 fn apply_additional_edits_for_completion(
13911 &self,
13912 buffer: Model<Buffer>,
13913 completion: Completion,
13914 push_to_history: bool,
13915 cx: &mut ViewContext<Editor>,
13916 ) -> Task<Result<Option<language::Transaction>>> {
13917 self.update(cx, |project, cx| {
13918 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13919 })
13920 }
13921
13922 fn is_completion_trigger(
13923 &self,
13924 buffer: &Model<Buffer>,
13925 position: language::Anchor,
13926 text: &str,
13927 trigger_in_words: bool,
13928 cx: &mut ViewContext<Editor>,
13929 ) -> bool {
13930 if !EditorSettings::get_global(cx).show_completions_on_input {
13931 return false;
13932 }
13933
13934 let mut chars = text.chars();
13935 let char = if let Some(char) = chars.next() {
13936 char
13937 } else {
13938 return false;
13939 };
13940 if chars.next().is_some() {
13941 return false;
13942 }
13943
13944 let buffer = buffer.read(cx);
13945 let classifier = buffer
13946 .snapshot()
13947 .char_classifier_at(position)
13948 .for_completion(true);
13949 if trigger_in_words && classifier.is_word(char) {
13950 return true;
13951 }
13952
13953 buffer.completion_triggers().contains(text)
13954 }
13955}
13956
13957impl SemanticsProvider for Model<Project> {
13958 fn hover(
13959 &self,
13960 buffer: &Model<Buffer>,
13961 position: text::Anchor,
13962 cx: &mut AppContext,
13963 ) -> Option<Task<Vec<project::Hover>>> {
13964 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13965 }
13966
13967 fn document_highlights(
13968 &self,
13969 buffer: &Model<Buffer>,
13970 position: text::Anchor,
13971 cx: &mut AppContext,
13972 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13973 Some(self.update(cx, |project, cx| {
13974 project.document_highlights(buffer, position, cx)
13975 }))
13976 }
13977
13978 fn definitions(
13979 &self,
13980 buffer: &Model<Buffer>,
13981 position: text::Anchor,
13982 kind: GotoDefinitionKind,
13983 cx: &mut AppContext,
13984 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13985 Some(self.update(cx, |project, cx| match kind {
13986 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13987 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13988 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13989 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13990 }))
13991 }
13992
13993 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13994 // TODO: make this work for remote projects
13995 self.read(cx)
13996 .language_servers_for_buffer(buffer.read(cx), cx)
13997 .any(
13998 |(_, server)| match server.capabilities().inlay_hint_provider {
13999 Some(lsp::OneOf::Left(enabled)) => enabled,
14000 Some(lsp::OneOf::Right(_)) => true,
14001 None => false,
14002 },
14003 )
14004 }
14005
14006 fn inlay_hints(
14007 &self,
14008 buffer_handle: Model<Buffer>,
14009 range: Range<text::Anchor>,
14010 cx: &mut AppContext,
14011 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
14012 Some(self.update(cx, |project, cx| {
14013 project.inlay_hints(buffer_handle, range, cx)
14014 }))
14015 }
14016
14017 fn resolve_inlay_hint(
14018 &self,
14019 hint: InlayHint,
14020 buffer_handle: Model<Buffer>,
14021 server_id: LanguageServerId,
14022 cx: &mut AppContext,
14023 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14024 Some(self.update(cx, |project, cx| {
14025 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14026 }))
14027 }
14028
14029 fn range_for_rename(
14030 &self,
14031 buffer: &Model<Buffer>,
14032 position: text::Anchor,
14033 cx: &mut AppContext,
14034 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14035 Some(self.update(cx, |project, cx| {
14036 project.prepare_rename(buffer.clone(), position, cx)
14037 }))
14038 }
14039
14040 fn perform_rename(
14041 &self,
14042 buffer: &Model<Buffer>,
14043 position: text::Anchor,
14044 new_name: String,
14045 cx: &mut AppContext,
14046 ) -> Option<Task<Result<ProjectTransaction>>> {
14047 Some(self.update(cx, |project, cx| {
14048 project.perform_rename(buffer.clone(), position, new_name, cx)
14049 }))
14050 }
14051}
14052
14053fn inlay_hint_settings(
14054 location: Anchor,
14055 snapshot: &MultiBufferSnapshot,
14056 cx: &mut ViewContext<'_, Editor>,
14057) -> InlayHintSettings {
14058 let file = snapshot.file_at(location);
14059 let language = snapshot.language_at(location).map(|l| l.name());
14060 language_settings(language, file, cx).inlay_hints
14061}
14062
14063fn consume_contiguous_rows(
14064 contiguous_row_selections: &mut Vec<Selection<Point>>,
14065 selection: &Selection<Point>,
14066 display_map: &DisplaySnapshot,
14067 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14068) -> (MultiBufferRow, MultiBufferRow) {
14069 contiguous_row_selections.push(selection.clone());
14070 let start_row = MultiBufferRow(selection.start.row);
14071 let mut end_row = ending_row(selection, display_map);
14072
14073 while let Some(next_selection) = selections.peek() {
14074 if next_selection.start.row <= end_row.0 {
14075 end_row = ending_row(next_selection, display_map);
14076 contiguous_row_selections.push(selections.next().unwrap().clone());
14077 } else {
14078 break;
14079 }
14080 }
14081 (start_row, end_row)
14082}
14083
14084fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14085 if next_selection.end.column > 0 || next_selection.is_empty() {
14086 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14087 } else {
14088 MultiBufferRow(next_selection.end.row)
14089 }
14090}
14091
14092impl EditorSnapshot {
14093 pub fn remote_selections_in_range<'a>(
14094 &'a self,
14095 range: &'a Range<Anchor>,
14096 collaboration_hub: &dyn CollaborationHub,
14097 cx: &'a AppContext,
14098 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14099 let participant_names = collaboration_hub.user_names(cx);
14100 let participant_indices = collaboration_hub.user_participant_indices(cx);
14101 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14102 let collaborators_by_replica_id = collaborators_by_peer_id
14103 .iter()
14104 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14105 .collect::<HashMap<_, _>>();
14106 self.buffer_snapshot
14107 .selections_in_range(range, false)
14108 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14109 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14110 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14111 let user_name = participant_names.get(&collaborator.user_id).cloned();
14112 Some(RemoteSelection {
14113 replica_id,
14114 selection,
14115 cursor_shape,
14116 line_mode,
14117 participant_index,
14118 peer_id: collaborator.peer_id,
14119 user_name,
14120 })
14121 })
14122 }
14123
14124 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14125 self.display_snapshot.buffer_snapshot.language_at(position)
14126 }
14127
14128 pub fn is_focused(&self) -> bool {
14129 self.is_focused
14130 }
14131
14132 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14133 self.placeholder_text.as_ref()
14134 }
14135
14136 pub fn scroll_position(&self) -> gpui::Point<f32> {
14137 self.scroll_anchor.scroll_position(&self.display_snapshot)
14138 }
14139
14140 fn gutter_dimensions(
14141 &self,
14142 font_id: FontId,
14143 font_size: Pixels,
14144 em_width: Pixels,
14145 em_advance: Pixels,
14146 max_line_number_width: Pixels,
14147 cx: &AppContext,
14148 ) -> GutterDimensions {
14149 if !self.show_gutter {
14150 return GutterDimensions::default();
14151 }
14152 let descent = cx.text_system().descent(font_id, font_size);
14153
14154 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14155 matches!(
14156 ProjectSettings::get_global(cx).git.git_gutter,
14157 Some(GitGutterSetting::TrackedFiles)
14158 )
14159 });
14160 let gutter_settings = EditorSettings::get_global(cx).gutter;
14161 let show_line_numbers = self
14162 .show_line_numbers
14163 .unwrap_or(gutter_settings.line_numbers);
14164 let line_gutter_width = if show_line_numbers {
14165 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14166 let min_width_for_number_on_gutter = em_advance * 4.0;
14167 max_line_number_width.max(min_width_for_number_on_gutter)
14168 } else {
14169 0.0.into()
14170 };
14171
14172 let show_code_actions = self
14173 .show_code_actions
14174 .unwrap_or(gutter_settings.code_actions);
14175
14176 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14177
14178 let git_blame_entries_width =
14179 self.git_blame_gutter_max_author_length
14180 .map(|max_author_length| {
14181 // Length of the author name, but also space for the commit hash,
14182 // the spacing and the timestamp.
14183 let max_char_count = max_author_length
14184 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14185 + 7 // length of commit sha
14186 + 14 // length of max relative timestamp ("60 minutes ago")
14187 + 4; // gaps and margins
14188
14189 em_advance * max_char_count
14190 });
14191
14192 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14193 left_padding += if show_code_actions || show_runnables {
14194 em_width * 3.0
14195 } else if show_git_gutter && show_line_numbers {
14196 em_width * 2.0
14197 } else if show_git_gutter || show_line_numbers {
14198 em_width
14199 } else {
14200 px(0.)
14201 };
14202
14203 let right_padding = if gutter_settings.folds && show_line_numbers {
14204 em_width * 4.0
14205 } else if gutter_settings.folds {
14206 em_width * 3.0
14207 } else if show_line_numbers {
14208 em_width
14209 } else {
14210 px(0.)
14211 };
14212
14213 GutterDimensions {
14214 left_padding,
14215 right_padding,
14216 width: line_gutter_width + left_padding + right_padding,
14217 margin: -descent,
14218 git_blame_entries_width,
14219 }
14220 }
14221
14222 pub fn render_crease_toggle(
14223 &self,
14224 buffer_row: MultiBufferRow,
14225 row_contains_cursor: bool,
14226 editor: View<Editor>,
14227 cx: &mut WindowContext,
14228 ) -> Option<AnyElement> {
14229 let folded = self.is_line_folded(buffer_row);
14230 let mut is_foldable = false;
14231
14232 if let Some(crease) = self
14233 .crease_snapshot
14234 .query_row(buffer_row, &self.buffer_snapshot)
14235 {
14236 is_foldable = true;
14237 match crease {
14238 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14239 if let Some(render_toggle) = render_toggle {
14240 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14241 if folded {
14242 editor.update(cx, |editor, cx| {
14243 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14244 });
14245 } else {
14246 editor.update(cx, |editor, cx| {
14247 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14248 });
14249 }
14250 });
14251 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14252 }
14253 }
14254 }
14255 }
14256
14257 is_foldable |= self.starts_indent(buffer_row);
14258
14259 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14260 Some(
14261 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14262 .selected(folded)
14263 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14264 if folded {
14265 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14266 } else {
14267 this.fold_at(&FoldAt { buffer_row }, cx);
14268 }
14269 }))
14270 .into_any_element(),
14271 )
14272 } else {
14273 None
14274 }
14275 }
14276
14277 pub fn render_crease_trailer(
14278 &self,
14279 buffer_row: MultiBufferRow,
14280 cx: &mut WindowContext,
14281 ) -> Option<AnyElement> {
14282 let folded = self.is_line_folded(buffer_row);
14283 if let Crease::Inline { render_trailer, .. } = self
14284 .crease_snapshot
14285 .query_row(buffer_row, &self.buffer_snapshot)?
14286 {
14287 let render_trailer = render_trailer.as_ref()?;
14288 Some(render_trailer(buffer_row, folded, cx))
14289 } else {
14290 None
14291 }
14292 }
14293}
14294
14295impl Deref for EditorSnapshot {
14296 type Target = DisplaySnapshot;
14297
14298 fn deref(&self) -> &Self::Target {
14299 &self.display_snapshot
14300 }
14301}
14302
14303#[derive(Clone, Debug, PartialEq, Eq)]
14304pub enum EditorEvent {
14305 InputIgnored {
14306 text: Arc<str>,
14307 },
14308 InputHandled {
14309 utf16_range_to_replace: Option<Range<isize>>,
14310 text: Arc<str>,
14311 },
14312 ExcerptsAdded {
14313 buffer: Model<Buffer>,
14314 predecessor: ExcerptId,
14315 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14316 },
14317 ExcerptsRemoved {
14318 ids: Vec<ExcerptId>,
14319 },
14320 ExcerptsEdited {
14321 ids: Vec<ExcerptId>,
14322 },
14323 ExcerptsExpanded {
14324 ids: Vec<ExcerptId>,
14325 },
14326 BufferEdited,
14327 Edited {
14328 transaction_id: clock::Lamport,
14329 },
14330 Reparsed(BufferId),
14331 Focused,
14332 FocusedIn,
14333 Blurred,
14334 DirtyChanged,
14335 Saved,
14336 TitleChanged,
14337 DiffBaseChanged,
14338 SelectionsChanged {
14339 local: bool,
14340 },
14341 ScrollPositionChanged {
14342 local: bool,
14343 autoscroll: bool,
14344 },
14345 Closed,
14346 TransactionUndone {
14347 transaction_id: clock::Lamport,
14348 },
14349 TransactionBegun {
14350 transaction_id: clock::Lamport,
14351 },
14352 Reloaded,
14353 CursorShapeChanged,
14354}
14355
14356impl EventEmitter<EditorEvent> for Editor {}
14357
14358impl FocusableView for Editor {
14359 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14360 self.focus_handle.clone()
14361 }
14362}
14363
14364impl Render for Editor {
14365 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14366 let settings = ThemeSettings::get_global(cx);
14367
14368 let mut text_style = match self.mode {
14369 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14370 color: cx.theme().colors().editor_foreground,
14371 font_family: settings.ui_font.family.clone(),
14372 font_features: settings.ui_font.features.clone(),
14373 font_fallbacks: settings.ui_font.fallbacks.clone(),
14374 font_size: rems(0.875).into(),
14375 font_weight: settings.ui_font.weight,
14376 line_height: relative(settings.buffer_line_height.value()),
14377 ..Default::default()
14378 },
14379 EditorMode::Full => TextStyle {
14380 color: cx.theme().colors().editor_foreground,
14381 font_family: settings.buffer_font.family.clone(),
14382 font_features: settings.buffer_font.features.clone(),
14383 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14384 font_size: settings.buffer_font_size(cx).into(),
14385 font_weight: settings.buffer_font.weight,
14386 line_height: relative(settings.buffer_line_height.value()),
14387 ..Default::default()
14388 },
14389 };
14390 if let Some(text_style_refinement) = &self.text_style_refinement {
14391 text_style.refine(text_style_refinement)
14392 }
14393
14394 let background = match self.mode {
14395 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14396 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14397 EditorMode::Full => cx.theme().colors().editor_background,
14398 };
14399
14400 EditorElement::new(
14401 cx.view(),
14402 EditorStyle {
14403 background,
14404 local_player: cx.theme().players().local(),
14405 text: text_style,
14406 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14407 syntax: cx.theme().syntax().clone(),
14408 status: cx.theme().status().clone(),
14409 inlay_hints_style: make_inlay_hints_style(cx),
14410 suggestions_style: HighlightStyle {
14411 color: Some(cx.theme().status().predictive),
14412 ..HighlightStyle::default()
14413 },
14414 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14415 },
14416 )
14417 }
14418}
14419
14420impl ViewInputHandler for Editor {
14421 fn text_for_range(
14422 &mut self,
14423 range_utf16: Range<usize>,
14424 cx: &mut ViewContext<Self>,
14425 ) -> Option<String> {
14426 Some(
14427 self.buffer
14428 .read(cx)
14429 .read(cx)
14430 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
14431 .collect(),
14432 )
14433 }
14434
14435 fn selected_text_range(
14436 &mut self,
14437 ignore_disabled_input: bool,
14438 cx: &mut ViewContext<Self>,
14439 ) -> Option<UTF16Selection> {
14440 // Prevent the IME menu from appearing when holding down an alphabetic key
14441 // while input is disabled.
14442 if !ignore_disabled_input && !self.input_enabled {
14443 return None;
14444 }
14445
14446 let selection = self.selections.newest::<OffsetUtf16>(cx);
14447 let range = selection.range();
14448
14449 Some(UTF16Selection {
14450 range: range.start.0..range.end.0,
14451 reversed: selection.reversed,
14452 })
14453 }
14454
14455 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14456 let snapshot = self.buffer.read(cx).read(cx);
14457 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14458 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14459 }
14460
14461 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14462 self.clear_highlights::<InputComposition>(cx);
14463 self.ime_transaction.take();
14464 }
14465
14466 fn replace_text_in_range(
14467 &mut self,
14468 range_utf16: Option<Range<usize>>,
14469 text: &str,
14470 cx: &mut ViewContext<Self>,
14471 ) {
14472 if !self.input_enabled {
14473 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14474 return;
14475 }
14476
14477 self.transact(cx, |this, cx| {
14478 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14479 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14480 Some(this.selection_replacement_ranges(range_utf16, cx))
14481 } else {
14482 this.marked_text_ranges(cx)
14483 };
14484
14485 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14486 let newest_selection_id = this.selections.newest_anchor().id;
14487 this.selections
14488 .all::<OffsetUtf16>(cx)
14489 .iter()
14490 .zip(ranges_to_replace.iter())
14491 .find_map(|(selection, range)| {
14492 if selection.id == newest_selection_id {
14493 Some(
14494 (range.start.0 as isize - selection.head().0 as isize)
14495 ..(range.end.0 as isize - selection.head().0 as isize),
14496 )
14497 } else {
14498 None
14499 }
14500 })
14501 });
14502
14503 cx.emit(EditorEvent::InputHandled {
14504 utf16_range_to_replace: range_to_replace,
14505 text: text.into(),
14506 });
14507
14508 if let Some(new_selected_ranges) = new_selected_ranges {
14509 this.change_selections(None, cx, |selections| {
14510 selections.select_ranges(new_selected_ranges)
14511 });
14512 this.backspace(&Default::default(), cx);
14513 }
14514
14515 this.handle_input(text, cx);
14516 });
14517
14518 if let Some(transaction) = self.ime_transaction {
14519 self.buffer.update(cx, |buffer, cx| {
14520 buffer.group_until_transaction(transaction, cx);
14521 });
14522 }
14523
14524 self.unmark_text(cx);
14525 }
14526
14527 fn replace_and_mark_text_in_range(
14528 &mut self,
14529 range_utf16: Option<Range<usize>>,
14530 text: &str,
14531 new_selected_range_utf16: Option<Range<usize>>,
14532 cx: &mut ViewContext<Self>,
14533 ) {
14534 if !self.input_enabled {
14535 return;
14536 }
14537
14538 let transaction = self.transact(cx, |this, cx| {
14539 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14540 let snapshot = this.buffer.read(cx).read(cx);
14541 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14542 for marked_range in &mut marked_ranges {
14543 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14544 marked_range.start.0 += relative_range_utf16.start;
14545 marked_range.start =
14546 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14547 marked_range.end =
14548 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14549 }
14550 }
14551 Some(marked_ranges)
14552 } else if let Some(range_utf16) = range_utf16 {
14553 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14554 Some(this.selection_replacement_ranges(range_utf16, cx))
14555 } else {
14556 None
14557 };
14558
14559 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14560 let newest_selection_id = this.selections.newest_anchor().id;
14561 this.selections
14562 .all::<OffsetUtf16>(cx)
14563 .iter()
14564 .zip(ranges_to_replace.iter())
14565 .find_map(|(selection, range)| {
14566 if selection.id == newest_selection_id {
14567 Some(
14568 (range.start.0 as isize - selection.head().0 as isize)
14569 ..(range.end.0 as isize - selection.head().0 as isize),
14570 )
14571 } else {
14572 None
14573 }
14574 })
14575 });
14576
14577 cx.emit(EditorEvent::InputHandled {
14578 utf16_range_to_replace: range_to_replace,
14579 text: text.into(),
14580 });
14581
14582 if let Some(ranges) = ranges_to_replace {
14583 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14584 }
14585
14586 let marked_ranges = {
14587 let snapshot = this.buffer.read(cx).read(cx);
14588 this.selections
14589 .disjoint_anchors()
14590 .iter()
14591 .map(|selection| {
14592 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14593 })
14594 .collect::<Vec<_>>()
14595 };
14596
14597 if text.is_empty() {
14598 this.unmark_text(cx);
14599 } else {
14600 this.highlight_text::<InputComposition>(
14601 marked_ranges.clone(),
14602 HighlightStyle {
14603 underline: Some(UnderlineStyle {
14604 thickness: px(1.),
14605 color: None,
14606 wavy: false,
14607 }),
14608 ..Default::default()
14609 },
14610 cx,
14611 );
14612 }
14613
14614 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14615 let use_autoclose = this.use_autoclose;
14616 let use_auto_surround = this.use_auto_surround;
14617 this.set_use_autoclose(false);
14618 this.set_use_auto_surround(false);
14619 this.handle_input(text, cx);
14620 this.set_use_autoclose(use_autoclose);
14621 this.set_use_auto_surround(use_auto_surround);
14622
14623 if let Some(new_selected_range) = new_selected_range_utf16 {
14624 let snapshot = this.buffer.read(cx).read(cx);
14625 let new_selected_ranges = marked_ranges
14626 .into_iter()
14627 .map(|marked_range| {
14628 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14629 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14630 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14631 snapshot.clip_offset_utf16(new_start, Bias::Left)
14632 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14633 })
14634 .collect::<Vec<_>>();
14635
14636 drop(snapshot);
14637 this.change_selections(None, cx, |selections| {
14638 selections.select_ranges(new_selected_ranges)
14639 });
14640 }
14641 });
14642
14643 self.ime_transaction = self.ime_transaction.or(transaction);
14644 if let Some(transaction) = self.ime_transaction {
14645 self.buffer.update(cx, |buffer, cx| {
14646 buffer.group_until_transaction(transaction, cx);
14647 });
14648 }
14649
14650 if self.text_highlights::<InputComposition>(cx).is_none() {
14651 self.ime_transaction.take();
14652 }
14653 }
14654
14655 fn bounds_for_range(
14656 &mut self,
14657 range_utf16: Range<usize>,
14658 element_bounds: gpui::Bounds<Pixels>,
14659 cx: &mut ViewContext<Self>,
14660 ) -> Option<gpui::Bounds<Pixels>> {
14661 let text_layout_details = self.text_layout_details(cx);
14662 let style = &text_layout_details.editor_style;
14663 let font_id = cx.text_system().resolve_font(&style.text.font());
14664 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14665 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14666
14667 let em_width = cx
14668 .text_system()
14669 .typographic_bounds(font_id, font_size, 'm')
14670 .unwrap()
14671 .size
14672 .width;
14673
14674 let snapshot = self.snapshot(cx);
14675 let scroll_position = snapshot.scroll_position();
14676 let scroll_left = scroll_position.x * em_width;
14677
14678 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14679 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14680 + self.gutter_dimensions.width;
14681 let y = line_height * (start.row().as_f32() - scroll_position.y);
14682
14683 Some(Bounds {
14684 origin: element_bounds.origin + point(x, y),
14685 size: size(em_width, line_height),
14686 })
14687 }
14688}
14689
14690trait SelectionExt {
14691 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14692 fn spanned_rows(
14693 &self,
14694 include_end_if_at_line_start: bool,
14695 map: &DisplaySnapshot,
14696 ) -> Range<MultiBufferRow>;
14697}
14698
14699impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14700 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14701 let start = self
14702 .start
14703 .to_point(&map.buffer_snapshot)
14704 .to_display_point(map);
14705 let end = self
14706 .end
14707 .to_point(&map.buffer_snapshot)
14708 .to_display_point(map);
14709 if self.reversed {
14710 end..start
14711 } else {
14712 start..end
14713 }
14714 }
14715
14716 fn spanned_rows(
14717 &self,
14718 include_end_if_at_line_start: bool,
14719 map: &DisplaySnapshot,
14720 ) -> Range<MultiBufferRow> {
14721 let start = self.start.to_point(&map.buffer_snapshot);
14722 let mut end = self.end.to_point(&map.buffer_snapshot);
14723 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14724 end.row -= 1;
14725 }
14726
14727 let buffer_start = map.prev_line_boundary(start).0;
14728 let buffer_end = map.next_line_boundary(end).0;
14729 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14730 }
14731}
14732
14733impl<T: InvalidationRegion> InvalidationStack<T> {
14734 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14735 where
14736 S: Clone + ToOffset,
14737 {
14738 while let Some(region) = self.last() {
14739 let all_selections_inside_invalidation_ranges =
14740 if selections.len() == region.ranges().len() {
14741 selections
14742 .iter()
14743 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14744 .all(|(selection, invalidation_range)| {
14745 let head = selection.head().to_offset(buffer);
14746 invalidation_range.start <= head && invalidation_range.end >= head
14747 })
14748 } else {
14749 false
14750 };
14751
14752 if all_selections_inside_invalidation_ranges {
14753 break;
14754 } else {
14755 self.pop();
14756 }
14757 }
14758 }
14759}
14760
14761impl<T> Default for InvalidationStack<T> {
14762 fn default() -> Self {
14763 Self(Default::default())
14764 }
14765}
14766
14767impl<T> Deref for InvalidationStack<T> {
14768 type Target = Vec<T>;
14769
14770 fn deref(&self) -> &Self::Target {
14771 &self.0
14772 }
14773}
14774
14775impl<T> DerefMut for InvalidationStack<T> {
14776 fn deref_mut(&mut self) -> &mut Self::Target {
14777 &mut self.0
14778 }
14779}
14780
14781impl InvalidationRegion for SnippetState {
14782 fn ranges(&self) -> &[Range<Anchor>] {
14783 &self.ranges[self.active_index]
14784 }
14785}
14786
14787pub fn diagnostic_block_renderer(
14788 diagnostic: Diagnostic,
14789 max_message_rows: Option<u8>,
14790 allow_closing: bool,
14791 _is_valid: bool,
14792) -> RenderBlock {
14793 let (text_without_backticks, code_ranges) =
14794 highlight_diagnostic_message(&diagnostic, max_message_rows);
14795
14796 Arc::new(move |cx: &mut BlockContext| {
14797 let group_id: SharedString = cx.block_id.to_string().into();
14798
14799 let mut text_style = cx.text_style().clone();
14800 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14801 let theme_settings = ThemeSettings::get_global(cx);
14802 text_style.font_family = theme_settings.buffer_font.family.clone();
14803 text_style.font_style = theme_settings.buffer_font.style;
14804 text_style.font_features = theme_settings.buffer_font.features.clone();
14805 text_style.font_weight = theme_settings.buffer_font.weight;
14806
14807 let multi_line_diagnostic = diagnostic.message.contains('\n');
14808
14809 let buttons = |diagnostic: &Diagnostic| {
14810 if multi_line_diagnostic {
14811 v_flex()
14812 } else {
14813 h_flex()
14814 }
14815 .when(allow_closing, |div| {
14816 div.children(diagnostic.is_primary.then(|| {
14817 IconButton::new("close-block", IconName::XCircle)
14818 .icon_color(Color::Muted)
14819 .size(ButtonSize::Compact)
14820 .style(ButtonStyle::Transparent)
14821 .visible_on_hover(group_id.clone())
14822 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14823 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14824 }))
14825 })
14826 .child(
14827 IconButton::new("copy-block", IconName::Copy)
14828 .icon_color(Color::Muted)
14829 .size(ButtonSize::Compact)
14830 .style(ButtonStyle::Transparent)
14831 .visible_on_hover(group_id.clone())
14832 .on_click({
14833 let message = diagnostic.message.clone();
14834 move |_click, cx| {
14835 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14836 }
14837 })
14838 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14839 )
14840 };
14841
14842 let icon_size = buttons(&diagnostic)
14843 .into_any_element()
14844 .layout_as_root(AvailableSpace::min_size(), cx);
14845
14846 h_flex()
14847 .id(cx.block_id)
14848 .group(group_id.clone())
14849 .relative()
14850 .size_full()
14851 .block_mouse_down()
14852 .pl(cx.gutter_dimensions.width)
14853 .w(cx.max_width - cx.gutter_dimensions.full_width())
14854 .child(
14855 div()
14856 .flex()
14857 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14858 .flex_shrink(),
14859 )
14860 .child(buttons(&diagnostic))
14861 .child(div().flex().flex_shrink_0().child(
14862 StyledText::new(text_without_backticks.clone()).with_highlights(
14863 &text_style,
14864 code_ranges.iter().map(|range| {
14865 (
14866 range.clone(),
14867 HighlightStyle {
14868 font_weight: Some(FontWeight::BOLD),
14869 ..Default::default()
14870 },
14871 )
14872 }),
14873 ),
14874 ))
14875 .into_any_element()
14876 })
14877}
14878
14879pub fn highlight_diagnostic_message(
14880 diagnostic: &Diagnostic,
14881 mut max_message_rows: Option<u8>,
14882) -> (SharedString, Vec<Range<usize>>) {
14883 let mut text_without_backticks = String::new();
14884 let mut code_ranges = Vec::new();
14885
14886 if let Some(source) = &diagnostic.source {
14887 text_without_backticks.push_str(source);
14888 code_ranges.push(0..source.len());
14889 text_without_backticks.push_str(": ");
14890 }
14891
14892 let mut prev_offset = 0;
14893 let mut in_code_block = false;
14894 let has_row_limit = max_message_rows.is_some();
14895 let mut newline_indices = diagnostic
14896 .message
14897 .match_indices('\n')
14898 .filter(|_| has_row_limit)
14899 .map(|(ix, _)| ix)
14900 .fuse()
14901 .peekable();
14902
14903 for (quote_ix, _) in diagnostic
14904 .message
14905 .match_indices('`')
14906 .chain([(diagnostic.message.len(), "")])
14907 {
14908 let mut first_newline_ix = None;
14909 let mut last_newline_ix = None;
14910 while let Some(newline_ix) = newline_indices.peek() {
14911 if *newline_ix < quote_ix {
14912 if first_newline_ix.is_none() {
14913 first_newline_ix = Some(*newline_ix);
14914 }
14915 last_newline_ix = Some(*newline_ix);
14916
14917 if let Some(rows_left) = &mut max_message_rows {
14918 if *rows_left == 0 {
14919 break;
14920 } else {
14921 *rows_left -= 1;
14922 }
14923 }
14924 let _ = newline_indices.next();
14925 } else {
14926 break;
14927 }
14928 }
14929 let prev_len = text_without_backticks.len();
14930 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14931 text_without_backticks.push_str(new_text);
14932 if in_code_block {
14933 code_ranges.push(prev_len..text_without_backticks.len());
14934 }
14935 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14936 in_code_block = !in_code_block;
14937 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14938 text_without_backticks.push_str("...");
14939 break;
14940 }
14941 }
14942
14943 (text_without_backticks.into(), code_ranges)
14944}
14945
14946fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14947 match severity {
14948 DiagnosticSeverity::ERROR => colors.error,
14949 DiagnosticSeverity::WARNING => colors.warning,
14950 DiagnosticSeverity::INFORMATION => colors.info,
14951 DiagnosticSeverity::HINT => colors.info,
14952 _ => colors.ignored,
14953 }
14954}
14955
14956pub fn styled_runs_for_code_label<'a>(
14957 label: &'a CodeLabel,
14958 syntax_theme: &'a theme::SyntaxTheme,
14959) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14960 let fade_out = HighlightStyle {
14961 fade_out: Some(0.35),
14962 ..Default::default()
14963 };
14964
14965 let mut prev_end = label.filter_range.end;
14966 label
14967 .runs
14968 .iter()
14969 .enumerate()
14970 .flat_map(move |(ix, (range, highlight_id))| {
14971 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14972 style
14973 } else {
14974 return Default::default();
14975 };
14976 let mut muted_style = style;
14977 muted_style.highlight(fade_out);
14978
14979 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14980 if range.start >= label.filter_range.end {
14981 if range.start > prev_end {
14982 runs.push((prev_end..range.start, fade_out));
14983 }
14984 runs.push((range.clone(), muted_style));
14985 } else if range.end <= label.filter_range.end {
14986 runs.push((range.clone(), style));
14987 } else {
14988 runs.push((range.start..label.filter_range.end, style));
14989 runs.push((label.filter_range.end..range.end, muted_style));
14990 }
14991 prev_end = cmp::max(prev_end, range.end);
14992
14993 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14994 runs.push((prev_end..label.text.len(), fade_out));
14995 }
14996
14997 runs
14998 })
14999}
15000
15001pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15002 let mut prev_index = 0;
15003 let mut prev_codepoint: Option<char> = None;
15004 text.char_indices()
15005 .chain([(text.len(), '\0')])
15006 .filter_map(move |(index, codepoint)| {
15007 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15008 let is_boundary = index == text.len()
15009 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15010 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15011 if is_boundary {
15012 let chunk = &text[prev_index..index];
15013 prev_index = index;
15014 Some(chunk)
15015 } else {
15016 None
15017 }
15018 })
15019}
15020
15021pub trait RangeToAnchorExt: Sized {
15022 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15023
15024 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15025 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15026 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15027 }
15028}
15029
15030impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15031 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15032 let start_offset = self.start.to_offset(snapshot);
15033 let end_offset = self.end.to_offset(snapshot);
15034 if start_offset == end_offset {
15035 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15036 } else {
15037 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15038 }
15039 }
15040}
15041
15042pub trait RowExt {
15043 fn as_f32(&self) -> f32;
15044
15045 fn next_row(&self) -> Self;
15046
15047 fn previous_row(&self) -> Self;
15048
15049 fn minus(&self, other: Self) -> u32;
15050}
15051
15052impl RowExt for DisplayRow {
15053 fn as_f32(&self) -> f32 {
15054 self.0 as f32
15055 }
15056
15057 fn next_row(&self) -> Self {
15058 Self(self.0 + 1)
15059 }
15060
15061 fn previous_row(&self) -> Self {
15062 Self(self.0.saturating_sub(1))
15063 }
15064
15065 fn minus(&self, other: Self) -> u32 {
15066 self.0 - other.0
15067 }
15068}
15069
15070impl RowExt for MultiBufferRow {
15071 fn as_f32(&self) -> f32 {
15072 self.0 as f32
15073 }
15074
15075 fn next_row(&self) -> Self {
15076 Self(self.0 + 1)
15077 }
15078
15079 fn previous_row(&self) -> Self {
15080 Self(self.0.saturating_sub(1))
15081 }
15082
15083 fn minus(&self, other: Self) -> u32 {
15084 self.0 - other.0
15085 }
15086}
15087
15088trait RowRangeExt {
15089 type Row;
15090
15091 fn len(&self) -> usize;
15092
15093 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15094}
15095
15096impl RowRangeExt for Range<MultiBufferRow> {
15097 type Row = MultiBufferRow;
15098
15099 fn len(&self) -> usize {
15100 (self.end.0 - self.start.0) as usize
15101 }
15102
15103 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15104 (self.start.0..self.end.0).map(MultiBufferRow)
15105 }
15106}
15107
15108impl RowRangeExt for Range<DisplayRow> {
15109 type Row = DisplayRow;
15110
15111 fn len(&self) -> usize {
15112 (self.end.0 - self.start.0) as usize
15113 }
15114
15115 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15116 (self.start.0..self.end.0).map(DisplayRow)
15117 }
15118}
15119
15120fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15121 if hunk.diff_base_byte_range.is_empty() {
15122 DiffHunkStatus::Added
15123 } else if hunk.row_range.is_empty() {
15124 DiffHunkStatus::Removed
15125 } else {
15126 DiffHunkStatus::Modified
15127 }
15128}
15129
15130/// If select range has more than one line, we
15131/// just point the cursor to range.start.
15132fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15133 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15134 range
15135 } else {
15136 range.start..range.start
15137 }
15138}
15139
15140const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);