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)| {
1040 StringMatchCandidate::new(
1041 id,
1042 completion.label.text[completion.label.filter_range.clone()].into(),
1043 )
1044 })
1045 .collect();
1046
1047 Self {
1048 id,
1049 sort_completions,
1050 initial_position,
1051 buffer,
1052 completions: Arc::new(RwLock::new(completions)),
1053 match_candidates,
1054 matches: Vec::new().into(),
1055 selected_item: 0,
1056 scroll_handle: UniformListScrollHandle::new(),
1057 selected_completion_documentation_resolve_debounce: Some(Arc::new(Mutex::new(
1058 DebouncedDelay::new(),
1059 ))),
1060 }
1061 }
1062
1063 fn new_snippet_choices(
1064 id: CompletionId,
1065 sort_completions: bool,
1066 choices: &Vec<String>,
1067 selection: Range<Anchor>,
1068 buffer: Model<Buffer>,
1069 ) -> Self {
1070 let completions = choices
1071 .iter()
1072 .map(|choice| Completion {
1073 old_range: selection.start.text_anchor..selection.end.text_anchor,
1074 new_text: choice.to_string(),
1075 label: CodeLabel {
1076 text: choice.to_string(),
1077 runs: Default::default(),
1078 filter_range: Default::default(),
1079 },
1080 server_id: LanguageServerId(usize::MAX),
1081 documentation: None,
1082 lsp_completion: Default::default(),
1083 confirm: None,
1084 })
1085 .collect();
1086
1087 let match_candidates = choices
1088 .iter()
1089 .enumerate()
1090 .map(|(id, completion)| StringMatchCandidate::new(id, completion.to_string()))
1091 .collect();
1092 let matches = choices
1093 .iter()
1094 .enumerate()
1095 .map(|(id, completion)| StringMatch {
1096 candidate_id: id,
1097 score: 1.,
1098 positions: vec![],
1099 string: completion.clone(),
1100 })
1101 .collect();
1102 Self {
1103 id,
1104 sort_completions,
1105 initial_position: selection.start,
1106 buffer,
1107 completions: Arc::new(RwLock::new(completions)),
1108 match_candidates,
1109 matches,
1110 selected_item: 0,
1111 scroll_handle: UniformListScrollHandle::new(),
1112 selected_completion_documentation_resolve_debounce: Some(Arc::new(Mutex::new(
1113 DebouncedDelay::new(),
1114 ))),
1115 }
1116 }
1117
1118 fn suppress_documentation_resolution(mut self) -> Self {
1119 self.selected_completion_documentation_resolve_debounce
1120 .take();
1121 self
1122 }
1123
1124 fn select_first(
1125 &mut self,
1126 provider: Option<&dyn CompletionProvider>,
1127 cx: &mut ViewContext<Editor>,
1128 ) {
1129 self.selected_item = 0;
1130 self.scroll_handle
1131 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1132 self.attempt_resolve_selected_completion_documentation(provider, cx);
1133 cx.notify();
1134 }
1135
1136 fn select_prev(
1137 &mut self,
1138 provider: Option<&dyn CompletionProvider>,
1139 cx: &mut ViewContext<Editor>,
1140 ) {
1141 if self.selected_item > 0 {
1142 self.selected_item -= 1;
1143 } else {
1144 self.selected_item = self.matches.len() - 1;
1145 }
1146 self.scroll_handle
1147 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1148 self.attempt_resolve_selected_completion_documentation(provider, cx);
1149 cx.notify();
1150 }
1151
1152 fn select_next(
1153 &mut self,
1154 provider: Option<&dyn CompletionProvider>,
1155 cx: &mut ViewContext<Editor>,
1156 ) {
1157 if self.selected_item + 1 < self.matches.len() {
1158 self.selected_item += 1;
1159 } else {
1160 self.selected_item = 0;
1161 }
1162 self.scroll_handle
1163 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1164 self.attempt_resolve_selected_completion_documentation(provider, cx);
1165 cx.notify();
1166 }
1167
1168 fn select_last(
1169 &mut self,
1170 provider: Option<&dyn CompletionProvider>,
1171 cx: &mut ViewContext<Editor>,
1172 ) {
1173 self.selected_item = self.matches.len() - 1;
1174 self.scroll_handle
1175 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1176 self.attempt_resolve_selected_completion_documentation(provider, cx);
1177 cx.notify();
1178 }
1179
1180 fn pre_resolve_completion_documentation(
1181 buffer: Model<Buffer>,
1182 completions: Arc<RwLock<Box<[Completion]>>>,
1183 matches: Arc<[StringMatch]>,
1184 editor: &Editor,
1185 cx: &mut ViewContext<Editor>,
1186 ) -> Task<()> {
1187 let settings = EditorSettings::get_global(cx);
1188 if !settings.show_completion_documentation {
1189 return Task::ready(());
1190 }
1191
1192 let Some(provider) = editor.completion_provider.as_ref() else {
1193 return Task::ready(());
1194 };
1195
1196 let resolve_task = provider.resolve_completions(
1197 buffer,
1198 matches.iter().map(|m| m.candidate_id).collect(),
1199 completions.clone(),
1200 cx,
1201 );
1202
1203 cx.spawn(move |this, mut cx| async move {
1204 if let Some(true) = resolve_task.await.log_err() {
1205 this.update(&mut cx, |_, cx| cx.notify()).ok();
1206 }
1207 })
1208 }
1209
1210 fn attempt_resolve_selected_completion_documentation(
1211 &mut self,
1212 provider: Option<&dyn CompletionProvider>,
1213 cx: &mut ViewContext<Editor>,
1214 ) {
1215 let settings = EditorSettings::get_global(cx);
1216 if !settings.show_completion_documentation {
1217 return;
1218 }
1219
1220 let completion_index = self.matches[self.selected_item].candidate_id;
1221 let Some(provider) = provider else {
1222 return;
1223 };
1224 let Some(documentation_resolve) = self
1225 .selected_completion_documentation_resolve_debounce
1226 .as_ref()
1227 else {
1228 return;
1229 };
1230
1231 let resolve_task = provider.resolve_completions(
1232 self.buffer.clone(),
1233 vec![completion_index],
1234 self.completions.clone(),
1235 cx,
1236 );
1237
1238 let delay_ms =
1239 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1240 let delay = Duration::from_millis(delay_ms);
1241
1242 documentation_resolve.lock().fire_new(delay, cx, |_, cx| {
1243 cx.spawn(move |this, mut cx| async move {
1244 if let Some(true) = resolve_task.await.log_err() {
1245 this.update(&mut cx, |_, cx| cx.notify()).ok();
1246 }
1247 })
1248 });
1249 }
1250
1251 fn visible(&self) -> bool {
1252 !self.matches.is_empty()
1253 }
1254
1255 fn render(
1256 &self,
1257 style: &EditorStyle,
1258 max_height: Pixels,
1259 workspace: Option<WeakView<Workspace>>,
1260 cx: &mut ViewContext<Editor>,
1261 ) -> AnyElement {
1262 let settings = EditorSettings::get_global(cx);
1263 let show_completion_documentation = settings.show_completion_documentation;
1264
1265 let widest_completion_ix = self
1266 .matches
1267 .iter()
1268 .enumerate()
1269 .max_by_key(|(_, mat)| {
1270 let completions = self.completions.read();
1271 let completion = &completions[mat.candidate_id];
1272 let documentation = &completion.documentation;
1273
1274 let mut len = completion.label.text.chars().count();
1275 if let Some(Documentation::SingleLine(text)) = documentation {
1276 if show_completion_documentation {
1277 len += text.chars().count();
1278 }
1279 }
1280
1281 len
1282 })
1283 .map(|(ix, _)| ix);
1284
1285 let completions = self.completions.clone();
1286 let matches = self.matches.clone();
1287 let selected_item = self.selected_item;
1288 let style = style.clone();
1289
1290 let multiline_docs = if show_completion_documentation {
1291 let mat = &self.matches[selected_item];
1292 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1293 Some(Documentation::MultiLinePlainText(text)) => {
1294 Some(div().child(SharedString::from(text.clone())))
1295 }
1296 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1297 Some(div().child(render_parsed_markdown(
1298 "completions_markdown",
1299 parsed,
1300 &style,
1301 workspace,
1302 cx,
1303 )))
1304 }
1305 _ => None,
1306 };
1307 multiline_docs.map(|div| {
1308 div.id("multiline_docs")
1309 .max_h(max_height)
1310 .flex_1()
1311 .px_1p5()
1312 .py_1()
1313 .min_w(px(260.))
1314 .max_w(px(640.))
1315 .w(px(500.))
1316 .overflow_y_scroll()
1317 .occlude()
1318 })
1319 } else {
1320 None
1321 };
1322
1323 let list = uniform_list(
1324 cx.view().clone(),
1325 "completions",
1326 matches.len(),
1327 move |_editor, range, cx| {
1328 let start_ix = range.start;
1329 let completions_guard = completions.read();
1330
1331 matches[range]
1332 .iter()
1333 .enumerate()
1334 .map(|(ix, mat)| {
1335 let item_ix = start_ix + ix;
1336 let candidate_id = mat.candidate_id;
1337 let completion = &completions_guard[candidate_id];
1338
1339 let documentation = if show_completion_documentation {
1340 &completion.documentation
1341 } else {
1342 &None
1343 };
1344
1345 let highlights = gpui::combine_highlights(
1346 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1347 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1348 |(range, mut highlight)| {
1349 // Ignore font weight for syntax highlighting, as we'll use it
1350 // for fuzzy matches.
1351 highlight.font_weight = None;
1352
1353 if completion.lsp_completion.deprecated.unwrap_or(false) {
1354 highlight.strikethrough = Some(StrikethroughStyle {
1355 thickness: 1.0.into(),
1356 ..Default::default()
1357 });
1358 highlight.color = Some(cx.theme().colors().text_muted);
1359 }
1360
1361 (range, highlight)
1362 },
1363 ),
1364 );
1365 let completion_label = StyledText::new(completion.label.text.clone())
1366 .with_highlights(&style.text, highlights);
1367 let documentation_label =
1368 if let Some(Documentation::SingleLine(text)) = documentation {
1369 if text.trim().is_empty() {
1370 None
1371 } else {
1372 Some(
1373 Label::new(text.clone())
1374 .ml_4()
1375 .size(LabelSize::Small)
1376 .color(Color::Muted),
1377 )
1378 }
1379 } else {
1380 None
1381 };
1382
1383 let color_swatch = completion
1384 .color()
1385 .map(|color| div().size_4().bg(color).rounded_sm());
1386
1387 div().min_w(px(220.)).max_w(px(540.)).child(
1388 ListItem::new(mat.candidate_id)
1389 .inset(true)
1390 .selected(item_ix == selected_item)
1391 .on_click(cx.listener(move |editor, _event, cx| {
1392 cx.stop_propagation();
1393 if let Some(task) = editor.confirm_completion(
1394 &ConfirmCompletion {
1395 item_ix: Some(item_ix),
1396 },
1397 cx,
1398 ) {
1399 task.detach_and_log_err(cx)
1400 }
1401 }))
1402 .start_slot::<Div>(color_swatch)
1403 .child(h_flex().overflow_hidden().child(completion_label))
1404 .end_slot::<Label>(documentation_label),
1405 )
1406 })
1407 .collect()
1408 },
1409 )
1410 .occlude()
1411 .max_h(max_height)
1412 .track_scroll(self.scroll_handle.clone())
1413 .with_width_from_item(widest_completion_ix)
1414 .with_sizing_behavior(ListSizingBehavior::Infer);
1415
1416 Popover::new()
1417 .child(list)
1418 .when_some(multiline_docs, |popover, multiline_docs| {
1419 popover.aside(multiline_docs)
1420 })
1421 .into_any_element()
1422 }
1423
1424 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1425 let mut matches = if let Some(query) = query {
1426 fuzzy::match_strings(
1427 &self.match_candidates,
1428 query,
1429 query.chars().any(|c| c.is_uppercase()),
1430 100,
1431 &Default::default(),
1432 executor,
1433 )
1434 .await
1435 } else {
1436 self.match_candidates
1437 .iter()
1438 .enumerate()
1439 .map(|(candidate_id, candidate)| StringMatch {
1440 candidate_id,
1441 score: Default::default(),
1442 positions: Default::default(),
1443 string: candidate.string.clone(),
1444 })
1445 .collect()
1446 };
1447
1448 // Remove all candidates where the query's start does not match the start of any word in the candidate
1449 if let Some(query) = query {
1450 if let Some(query_start) = query.chars().next() {
1451 matches.retain(|string_match| {
1452 split_words(&string_match.string).any(|word| {
1453 // Check that the first codepoint of the word as lowercase matches the first
1454 // codepoint of the query as lowercase
1455 word.chars()
1456 .flat_map(|codepoint| codepoint.to_lowercase())
1457 .zip(query_start.to_lowercase())
1458 .all(|(word_cp, query_cp)| word_cp == query_cp)
1459 })
1460 });
1461 }
1462 }
1463
1464 let completions = self.completions.read();
1465 if self.sort_completions {
1466 matches.sort_unstable_by_key(|mat| {
1467 // We do want to strike a balance here between what the language server tells us
1468 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1469 // `Creat` and there is a local variable called `CreateComponent`).
1470 // So what we do is: we bucket all matches into two buckets
1471 // - Strong matches
1472 // - Weak matches
1473 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1474 // and the Weak matches are the rest.
1475 //
1476 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1477 // matches, we prefer language-server sort_text first.
1478 //
1479 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1480 // Rest of the matches(weak) can be sorted as language-server expects.
1481
1482 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1483 enum MatchScore<'a> {
1484 Strong {
1485 score: Reverse<OrderedFloat<f64>>,
1486 sort_text: Option<&'a str>,
1487 sort_key: (usize, &'a str),
1488 },
1489 Weak {
1490 sort_text: Option<&'a str>,
1491 score: Reverse<OrderedFloat<f64>>,
1492 sort_key: (usize, &'a str),
1493 },
1494 }
1495
1496 let completion = &completions[mat.candidate_id];
1497 let sort_key = completion.sort_key();
1498 let sort_text = completion.lsp_completion.sort_text.as_deref();
1499 let score = Reverse(OrderedFloat(mat.score));
1500
1501 if mat.score >= 0.2 {
1502 MatchScore::Strong {
1503 score,
1504 sort_text,
1505 sort_key,
1506 }
1507 } else {
1508 MatchScore::Weak {
1509 sort_text,
1510 score,
1511 sort_key,
1512 }
1513 }
1514 });
1515 }
1516
1517 for mat in &mut matches {
1518 let completion = &completions[mat.candidate_id];
1519 mat.string.clone_from(&completion.label.text);
1520 for position in &mut mat.positions {
1521 *position += completion.label.filter_range.start;
1522 }
1523 }
1524 drop(completions);
1525
1526 self.matches = matches.into();
1527 self.selected_item = 0;
1528 }
1529}
1530
1531#[derive(Clone)]
1532struct AvailableCodeAction {
1533 excerpt_id: ExcerptId,
1534 action: CodeAction,
1535 provider: Arc<dyn CodeActionProvider>,
1536}
1537
1538#[derive(Clone)]
1539struct CodeActionContents {
1540 tasks: Option<Arc<ResolvedTasks>>,
1541 actions: Option<Arc<[AvailableCodeAction]>>,
1542}
1543
1544impl CodeActionContents {
1545 fn len(&self) -> usize {
1546 match (&self.tasks, &self.actions) {
1547 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1548 (Some(tasks), None) => tasks.templates.len(),
1549 (None, Some(actions)) => actions.len(),
1550 (None, None) => 0,
1551 }
1552 }
1553
1554 fn is_empty(&self) -> bool {
1555 match (&self.tasks, &self.actions) {
1556 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1557 (Some(tasks), None) => tasks.templates.is_empty(),
1558 (None, Some(actions)) => actions.is_empty(),
1559 (None, None) => true,
1560 }
1561 }
1562
1563 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1564 self.tasks
1565 .iter()
1566 .flat_map(|tasks| {
1567 tasks
1568 .templates
1569 .iter()
1570 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1571 })
1572 .chain(self.actions.iter().flat_map(|actions| {
1573 actions.iter().map(|available| CodeActionsItem::CodeAction {
1574 excerpt_id: available.excerpt_id,
1575 action: available.action.clone(),
1576 provider: available.provider.clone(),
1577 })
1578 }))
1579 }
1580 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1581 match (&self.tasks, &self.actions) {
1582 (Some(tasks), Some(actions)) => {
1583 if index < tasks.templates.len() {
1584 tasks
1585 .templates
1586 .get(index)
1587 .cloned()
1588 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1589 } else {
1590 actions.get(index - tasks.templates.len()).map(|available| {
1591 CodeActionsItem::CodeAction {
1592 excerpt_id: available.excerpt_id,
1593 action: available.action.clone(),
1594 provider: available.provider.clone(),
1595 }
1596 })
1597 }
1598 }
1599 (Some(tasks), None) => tasks
1600 .templates
1601 .get(index)
1602 .cloned()
1603 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1604 (None, Some(actions)) => {
1605 actions
1606 .get(index)
1607 .map(|available| CodeActionsItem::CodeAction {
1608 excerpt_id: available.excerpt_id,
1609 action: available.action.clone(),
1610 provider: available.provider.clone(),
1611 })
1612 }
1613 (None, None) => None,
1614 }
1615 }
1616}
1617
1618#[allow(clippy::large_enum_variant)]
1619#[derive(Clone)]
1620enum CodeActionsItem {
1621 Task(TaskSourceKind, ResolvedTask),
1622 CodeAction {
1623 excerpt_id: ExcerptId,
1624 action: CodeAction,
1625 provider: Arc<dyn CodeActionProvider>,
1626 },
1627}
1628
1629impl CodeActionsItem {
1630 fn as_task(&self) -> Option<&ResolvedTask> {
1631 let Self::Task(_, task) = self else {
1632 return None;
1633 };
1634 Some(task)
1635 }
1636 fn as_code_action(&self) -> Option<&CodeAction> {
1637 let Self::CodeAction { action, .. } = self else {
1638 return None;
1639 };
1640 Some(action)
1641 }
1642 fn label(&self) -> String {
1643 match self {
1644 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1645 Self::Task(_, task) => task.resolved_label.clone(),
1646 }
1647 }
1648}
1649
1650struct CodeActionsMenu {
1651 actions: CodeActionContents,
1652 buffer: Model<Buffer>,
1653 selected_item: usize,
1654 scroll_handle: UniformListScrollHandle,
1655 deployed_from_indicator: Option<DisplayRow>,
1656}
1657
1658impl CodeActionsMenu {
1659 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1660 self.selected_item = 0;
1661 self.scroll_handle
1662 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1663 cx.notify()
1664 }
1665
1666 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1667 if self.selected_item > 0 {
1668 self.selected_item -= 1;
1669 } else {
1670 self.selected_item = self.actions.len() - 1;
1671 }
1672 self.scroll_handle
1673 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1674 cx.notify();
1675 }
1676
1677 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1678 if self.selected_item + 1 < self.actions.len() {
1679 self.selected_item += 1;
1680 } else {
1681 self.selected_item = 0;
1682 }
1683 self.scroll_handle
1684 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1685 cx.notify();
1686 }
1687
1688 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1689 self.selected_item = self.actions.len() - 1;
1690 self.scroll_handle
1691 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1692 cx.notify()
1693 }
1694
1695 fn visible(&self) -> bool {
1696 !self.actions.is_empty()
1697 }
1698
1699 fn render(
1700 &self,
1701 cursor_position: DisplayPoint,
1702 _style: &EditorStyle,
1703 max_height: Pixels,
1704 cx: &mut ViewContext<Editor>,
1705 ) -> (ContextMenuOrigin, AnyElement) {
1706 let actions = self.actions.clone();
1707 let selected_item = self.selected_item;
1708 let element = uniform_list(
1709 cx.view().clone(),
1710 "code_actions_menu",
1711 self.actions.len(),
1712 move |_this, range, cx| {
1713 actions
1714 .iter()
1715 .skip(range.start)
1716 .take(range.end - range.start)
1717 .enumerate()
1718 .map(|(ix, action)| {
1719 let item_ix = range.start + ix;
1720 let selected = selected_item == item_ix;
1721 let colors = cx.theme().colors();
1722 div()
1723 .px_1()
1724 .rounded_md()
1725 .text_color(colors.text)
1726 .when(selected, |style| {
1727 style
1728 .bg(colors.element_active)
1729 .text_color(colors.text_accent)
1730 })
1731 .hover(|style| {
1732 style
1733 .bg(colors.element_hover)
1734 .text_color(colors.text_accent)
1735 })
1736 .whitespace_nowrap()
1737 .when_some(action.as_code_action(), |this, action| {
1738 this.on_mouse_down(
1739 MouseButton::Left,
1740 cx.listener(move |editor, _, cx| {
1741 cx.stop_propagation();
1742 if let Some(task) = editor.confirm_code_action(
1743 &ConfirmCodeAction {
1744 item_ix: Some(item_ix),
1745 },
1746 cx,
1747 ) {
1748 task.detach_and_log_err(cx)
1749 }
1750 }),
1751 )
1752 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1753 .child(SharedString::from(action.lsp_action.title.clone()))
1754 })
1755 .when_some(action.as_task(), |this, task| {
1756 this.on_mouse_down(
1757 MouseButton::Left,
1758 cx.listener(move |editor, _, cx| {
1759 cx.stop_propagation();
1760 if let Some(task) = editor.confirm_code_action(
1761 &ConfirmCodeAction {
1762 item_ix: Some(item_ix),
1763 },
1764 cx,
1765 ) {
1766 task.detach_and_log_err(cx)
1767 }
1768 }),
1769 )
1770 .child(SharedString::from(task.resolved_label.clone()))
1771 })
1772 })
1773 .collect()
1774 },
1775 )
1776 .elevation_1(cx)
1777 .p_1()
1778 .max_h(max_height)
1779 .occlude()
1780 .track_scroll(self.scroll_handle.clone())
1781 .with_width_from_item(
1782 self.actions
1783 .iter()
1784 .enumerate()
1785 .max_by_key(|(_, action)| match action {
1786 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1787 CodeActionsItem::CodeAction { action, .. } => {
1788 action.lsp_action.title.chars().count()
1789 }
1790 })
1791 .map(|(ix, _)| ix),
1792 )
1793 .with_sizing_behavior(ListSizingBehavior::Infer)
1794 .into_any_element();
1795
1796 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1797 ContextMenuOrigin::GutterIndicator(row)
1798 } else {
1799 ContextMenuOrigin::EditorPoint(cursor_position)
1800 };
1801
1802 (cursor_position, element)
1803 }
1804}
1805
1806#[derive(Debug)]
1807struct ActiveDiagnosticGroup {
1808 primary_range: Range<Anchor>,
1809 primary_message: String,
1810 group_id: usize,
1811 blocks: HashMap<CustomBlockId, Diagnostic>,
1812 is_valid: bool,
1813}
1814
1815#[derive(Serialize, Deserialize, Clone, Debug)]
1816pub struct ClipboardSelection {
1817 pub len: usize,
1818 pub is_entire_line: bool,
1819 pub first_line_indent: u32,
1820}
1821
1822#[derive(Debug)]
1823pub(crate) struct NavigationData {
1824 cursor_anchor: Anchor,
1825 cursor_position: Point,
1826 scroll_anchor: ScrollAnchor,
1827 scroll_top_row: u32,
1828}
1829
1830#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1831pub enum GotoDefinitionKind {
1832 Symbol,
1833 Declaration,
1834 Type,
1835 Implementation,
1836}
1837
1838#[derive(Debug, Clone)]
1839enum InlayHintRefreshReason {
1840 Toggle(bool),
1841 SettingsChange(InlayHintSettings),
1842 NewLinesShown,
1843 BufferEdited(HashSet<Arc<Language>>),
1844 RefreshRequested,
1845 ExcerptsRemoved(Vec<ExcerptId>),
1846}
1847
1848impl InlayHintRefreshReason {
1849 fn description(&self) -> &'static str {
1850 match self {
1851 Self::Toggle(_) => "toggle",
1852 Self::SettingsChange(_) => "settings change",
1853 Self::NewLinesShown => "new lines shown",
1854 Self::BufferEdited(_) => "buffer edited",
1855 Self::RefreshRequested => "refresh requested",
1856 Self::ExcerptsRemoved(_) => "excerpts removed",
1857 }
1858 }
1859}
1860
1861pub(crate) struct FocusedBlock {
1862 id: BlockId,
1863 focus_handle: WeakFocusHandle,
1864}
1865
1866#[derive(Clone)]
1867struct JumpData {
1868 excerpt_id: ExcerptId,
1869 position: Point,
1870 anchor: text::Anchor,
1871 path: Option<project::ProjectPath>,
1872 line_offset_from_top: u32,
1873}
1874
1875impl Editor {
1876 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1877 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1878 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1879 Self::new(
1880 EditorMode::SingleLine { auto_width: false },
1881 buffer,
1882 None,
1883 false,
1884 cx,
1885 )
1886 }
1887
1888 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1889 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1890 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1891 Self::new(EditorMode::Full, buffer, None, false, cx)
1892 }
1893
1894 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1895 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1896 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1897 Self::new(
1898 EditorMode::SingleLine { auto_width: true },
1899 buffer,
1900 None,
1901 false,
1902 cx,
1903 )
1904 }
1905
1906 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1907 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1908 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1909 Self::new(
1910 EditorMode::AutoHeight { max_lines },
1911 buffer,
1912 None,
1913 false,
1914 cx,
1915 )
1916 }
1917
1918 pub fn for_buffer(
1919 buffer: Model<Buffer>,
1920 project: Option<Model<Project>>,
1921 cx: &mut ViewContext<Self>,
1922 ) -> Self {
1923 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1924 Self::new(EditorMode::Full, buffer, project, false, cx)
1925 }
1926
1927 pub fn for_multibuffer(
1928 buffer: Model<MultiBuffer>,
1929 project: Option<Model<Project>>,
1930 show_excerpt_controls: bool,
1931 cx: &mut ViewContext<Self>,
1932 ) -> Self {
1933 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1934 }
1935
1936 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1937 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1938 let mut clone = Self::new(
1939 self.mode,
1940 self.buffer.clone(),
1941 self.project.clone(),
1942 show_excerpt_controls,
1943 cx,
1944 );
1945 self.display_map.update(cx, |display_map, cx| {
1946 let snapshot = display_map.snapshot(cx);
1947 clone.display_map.update(cx, |display_map, cx| {
1948 display_map.set_state(&snapshot, cx);
1949 });
1950 });
1951 clone.selections.clone_state(&self.selections);
1952 clone.scroll_manager.clone_state(&self.scroll_manager);
1953 clone.searchable = self.searchable;
1954 clone
1955 }
1956
1957 pub fn new(
1958 mode: EditorMode,
1959 buffer: Model<MultiBuffer>,
1960 project: Option<Model<Project>>,
1961 show_excerpt_controls: bool,
1962 cx: &mut ViewContext<Self>,
1963 ) -> Self {
1964 let style = cx.text_style();
1965 let font_size = style.font_size.to_pixels(cx.rem_size());
1966 let editor = cx.view().downgrade();
1967 let fold_placeholder = FoldPlaceholder {
1968 constrain_width: true,
1969 render: Arc::new(move |fold_id, fold_range, cx| {
1970 let editor = editor.clone();
1971 div()
1972 .id(fold_id)
1973 .bg(cx.theme().colors().ghost_element_background)
1974 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1975 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1976 .rounded_sm()
1977 .size_full()
1978 .cursor_pointer()
1979 .child("⋯")
1980 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1981 .on_click(move |_, cx| {
1982 editor
1983 .update(cx, |editor, cx| {
1984 editor.unfold_ranges(
1985 &[fold_range.start..fold_range.end],
1986 true,
1987 false,
1988 cx,
1989 );
1990 cx.stop_propagation();
1991 })
1992 .ok();
1993 })
1994 .into_any()
1995 }),
1996 merge_adjacent: true,
1997 ..Default::default()
1998 };
1999 let display_map = cx.new_model(|cx| {
2000 DisplayMap::new(
2001 buffer.clone(),
2002 style.font(),
2003 font_size,
2004 None,
2005 show_excerpt_controls,
2006 FILE_HEADER_HEIGHT,
2007 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
2008 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
2009 fold_placeholder,
2010 cx,
2011 )
2012 });
2013
2014 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
2015
2016 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
2017
2018 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
2019 .then(|| language_settings::SoftWrap::None);
2020
2021 let mut project_subscriptions = Vec::new();
2022 if mode == EditorMode::Full {
2023 if let Some(project) = project.as_ref() {
2024 if buffer.read(cx).is_singleton() {
2025 project_subscriptions.push(cx.observe(project, |_, _, cx| {
2026 cx.emit(EditorEvent::TitleChanged);
2027 }));
2028 }
2029 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
2030 if let project::Event::RefreshInlayHints = event {
2031 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
2032 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
2033 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
2034 let focus_handle = editor.focus_handle(cx);
2035 if focus_handle.is_focused(cx) {
2036 let snapshot = buffer.read(cx).snapshot();
2037 for (range, snippet) in snippet_edits {
2038 let editor_range =
2039 language::range_from_lsp(*range).to_offset(&snapshot);
2040 editor
2041 .insert_snippet(&[editor_range], snippet.clone(), cx)
2042 .ok();
2043 }
2044 }
2045 }
2046 }
2047 }));
2048 if let Some(task_inventory) = project
2049 .read(cx)
2050 .task_store()
2051 .read(cx)
2052 .task_inventory()
2053 .cloned()
2054 {
2055 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
2056 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
2057 }));
2058 }
2059 }
2060 }
2061
2062 let inlay_hint_settings = inlay_hint_settings(
2063 selections.newest_anchor().head(),
2064 &buffer.read(cx).snapshot(cx),
2065 cx,
2066 );
2067 let focus_handle = cx.focus_handle();
2068 cx.on_focus(&focus_handle, Self::handle_focus).detach();
2069 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
2070 .detach();
2071 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
2072 .detach();
2073 cx.on_blur(&focus_handle, Self::handle_blur).detach();
2074
2075 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
2076 Some(false)
2077 } else {
2078 None
2079 };
2080
2081 let mut code_action_providers = Vec::new();
2082 if let Some(project) = project.clone() {
2083 code_action_providers.push(Arc::new(project) as Arc<_>);
2084 }
2085
2086 let mut this = Self {
2087 focus_handle,
2088 show_cursor_when_unfocused: false,
2089 last_focused_descendant: None,
2090 buffer: buffer.clone(),
2091 display_map: display_map.clone(),
2092 selections,
2093 scroll_manager: ScrollManager::new(cx),
2094 columnar_selection_tail: None,
2095 add_selections_state: None,
2096 select_next_state: None,
2097 select_prev_state: None,
2098 selection_history: Default::default(),
2099 autoclose_regions: Default::default(),
2100 snippet_stack: Default::default(),
2101 select_larger_syntax_node_stack: Vec::new(),
2102 ime_transaction: Default::default(),
2103 active_diagnostics: None,
2104 soft_wrap_mode_override,
2105 completion_provider: project.clone().map(|project| Box::new(project) as _),
2106 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
2107 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
2108 project,
2109 blink_manager: blink_manager.clone(),
2110 show_local_selections: true,
2111 mode,
2112 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
2113 show_gutter: mode == EditorMode::Full,
2114 show_line_numbers: None,
2115 use_relative_line_numbers: None,
2116 show_git_diff_gutter: None,
2117 show_code_actions: None,
2118 show_runnables: None,
2119 show_wrap_guides: None,
2120 show_indent_guides,
2121 placeholder_text: None,
2122 highlight_order: 0,
2123 highlighted_rows: HashMap::default(),
2124 background_highlights: Default::default(),
2125 gutter_highlights: TreeMap::default(),
2126 scrollbar_marker_state: ScrollbarMarkerState::default(),
2127 active_indent_guides_state: ActiveIndentGuidesState::default(),
2128 nav_history: None,
2129 context_menu: RwLock::new(None),
2130 mouse_context_menu: None,
2131 hunk_controls_menu_handle: PopoverMenuHandle::default(),
2132 completion_tasks: Default::default(),
2133 signature_help_state: SignatureHelpState::default(),
2134 auto_signature_help: None,
2135 find_all_references_task_sources: Vec::new(),
2136 next_completion_id: 0,
2137 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
2138 next_inlay_id: 0,
2139 code_action_providers,
2140 available_code_actions: Default::default(),
2141 code_actions_task: Default::default(),
2142 document_highlights_task: Default::default(),
2143 linked_editing_range_task: Default::default(),
2144 pending_rename: Default::default(),
2145 searchable: true,
2146 cursor_shape: EditorSettings::get_global(cx)
2147 .cursor_shape
2148 .unwrap_or_default(),
2149 current_line_highlight: None,
2150 autoindent_mode: Some(AutoindentMode::EachLine),
2151 collapse_matches: false,
2152 workspace: None,
2153 input_enabled: true,
2154 use_modal_editing: mode == EditorMode::Full,
2155 read_only: false,
2156 use_autoclose: true,
2157 use_auto_surround: true,
2158 auto_replace_emoji_shortcode: false,
2159 leader_peer_id: None,
2160 remote_id: None,
2161 hover_state: Default::default(),
2162 hovered_link_state: Default::default(),
2163 inline_completion_provider: None,
2164 active_inline_completion: None,
2165 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2166 expanded_hunks: ExpandedHunks::default(),
2167 gutter_hovered: false,
2168 pixel_position_of_newest_cursor: None,
2169 last_bounds: None,
2170 expect_bounds_change: None,
2171 gutter_dimensions: GutterDimensions::default(),
2172 style: None,
2173 show_cursor_names: false,
2174 hovered_cursors: Default::default(),
2175 next_editor_action_id: EditorActionId::default(),
2176 editor_actions: Rc::default(),
2177 show_inline_completions_override: None,
2178 enable_inline_completions: true,
2179 custom_context_menu: None,
2180 show_git_blame_gutter: false,
2181 show_git_blame_inline: false,
2182 show_selection_menu: None,
2183 show_git_blame_inline_delay_task: None,
2184 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2185 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2186 .session
2187 .restore_unsaved_buffers,
2188 blame: None,
2189 blame_subscription: None,
2190 tasks: Default::default(),
2191 _subscriptions: vec![
2192 cx.observe(&buffer, Self::on_buffer_changed),
2193 cx.subscribe(&buffer, Self::on_buffer_event),
2194 cx.observe(&display_map, Self::on_display_map_changed),
2195 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2196 cx.observe_global::<SettingsStore>(Self::settings_changed),
2197 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2198 cx.observe_window_activation(|editor, cx| {
2199 let active = cx.is_window_active();
2200 editor.blink_manager.update(cx, |blink_manager, cx| {
2201 if active {
2202 blink_manager.enable(cx);
2203 } else {
2204 blink_manager.disable(cx);
2205 }
2206 });
2207 }),
2208 ],
2209 tasks_update_task: None,
2210 linked_edit_ranges: Default::default(),
2211 previous_search_ranges: None,
2212 breadcrumb_header: None,
2213 focused_block: None,
2214 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2215 addons: HashMap::default(),
2216 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2217 text_style_refinement: None,
2218 active_line_trailer_provider: None,
2219 };
2220 this.tasks_update_task = Some(this.refresh_runnables(cx));
2221 this._subscriptions.extend(project_subscriptions);
2222
2223 this.end_selection(cx);
2224 this.scroll_manager.show_scrollbar(cx);
2225
2226 if mode == EditorMode::Full {
2227 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2228 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2229
2230 if this.git_blame_inline_enabled {
2231 this.git_blame_inline_enabled = true;
2232 this.start_git_blame_inline(false, cx);
2233 }
2234 }
2235
2236 this.report_editor_event("open", None, cx);
2237 this
2238 }
2239
2240 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2241 self.mouse_context_menu
2242 .as_ref()
2243 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2244 }
2245
2246 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2247 let mut key_context = KeyContext::new_with_defaults();
2248 key_context.add("Editor");
2249 let mode = match self.mode {
2250 EditorMode::SingleLine { .. } => "single_line",
2251 EditorMode::AutoHeight { .. } => "auto_height",
2252 EditorMode::Full => "full",
2253 };
2254
2255 if EditorSettings::jupyter_enabled(cx) {
2256 key_context.add("jupyter");
2257 }
2258
2259 key_context.set("mode", mode);
2260 if self.pending_rename.is_some() {
2261 key_context.add("renaming");
2262 }
2263 if self.context_menu_visible() {
2264 match self.context_menu.read().as_ref() {
2265 Some(ContextMenu::Completions(_)) => {
2266 key_context.add("menu");
2267 key_context.add("showing_completions")
2268 }
2269 Some(ContextMenu::CodeActions(_)) => {
2270 key_context.add("menu");
2271 key_context.add("showing_code_actions")
2272 }
2273 None => {}
2274 }
2275 }
2276
2277 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2278 if !self.focus_handle(cx).contains_focused(cx)
2279 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2280 {
2281 for addon in self.addons.values() {
2282 addon.extend_key_context(&mut key_context, cx)
2283 }
2284 }
2285
2286 if let Some(extension) = self
2287 .buffer
2288 .read(cx)
2289 .as_singleton()
2290 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2291 {
2292 key_context.set("extension", extension.to_string());
2293 }
2294
2295 if self.has_active_inline_completion(cx) {
2296 key_context.add("copilot_suggestion");
2297 key_context.add("inline_completion");
2298 }
2299
2300 key_context
2301 }
2302
2303 pub fn new_file(
2304 workspace: &mut Workspace,
2305 _: &workspace::NewFile,
2306 cx: &mut ViewContext<Workspace>,
2307 ) {
2308 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2309 "Failed to create buffer",
2310 cx,
2311 |e, _| match e.error_code() {
2312 ErrorCode::RemoteUpgradeRequired => Some(format!(
2313 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2314 e.error_tag("required").unwrap_or("the latest version")
2315 )),
2316 _ => None,
2317 },
2318 );
2319 }
2320
2321 pub fn new_in_workspace(
2322 workspace: &mut Workspace,
2323 cx: &mut ViewContext<Workspace>,
2324 ) -> Task<Result<View<Editor>>> {
2325 let project = workspace.project().clone();
2326 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2327
2328 cx.spawn(|workspace, mut cx| async move {
2329 let buffer = create.await?;
2330 workspace.update(&mut cx, |workspace, cx| {
2331 let editor =
2332 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2333 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2334 editor
2335 })
2336 })
2337 }
2338
2339 fn new_file_vertical(
2340 workspace: &mut Workspace,
2341 _: &workspace::NewFileSplitVertical,
2342 cx: &mut ViewContext<Workspace>,
2343 ) {
2344 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2345 }
2346
2347 fn new_file_horizontal(
2348 workspace: &mut Workspace,
2349 _: &workspace::NewFileSplitHorizontal,
2350 cx: &mut ViewContext<Workspace>,
2351 ) {
2352 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2353 }
2354
2355 fn new_file_in_direction(
2356 workspace: &mut Workspace,
2357 direction: SplitDirection,
2358 cx: &mut ViewContext<Workspace>,
2359 ) {
2360 let project = workspace.project().clone();
2361 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2362
2363 cx.spawn(|workspace, mut cx| async move {
2364 let buffer = create.await?;
2365 workspace.update(&mut cx, move |workspace, cx| {
2366 workspace.split_item(
2367 direction,
2368 Box::new(
2369 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2370 ),
2371 cx,
2372 )
2373 })?;
2374 anyhow::Ok(())
2375 })
2376 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2377 ErrorCode::RemoteUpgradeRequired => Some(format!(
2378 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2379 e.error_tag("required").unwrap_or("the latest version")
2380 )),
2381 _ => None,
2382 });
2383 }
2384
2385 pub fn leader_peer_id(&self) -> Option<PeerId> {
2386 self.leader_peer_id
2387 }
2388
2389 pub fn buffer(&self) -> &Model<MultiBuffer> {
2390 &self.buffer
2391 }
2392
2393 pub fn workspace(&self) -> Option<View<Workspace>> {
2394 self.workspace.as_ref()?.0.upgrade()
2395 }
2396
2397 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2398 self.buffer().read(cx).title(cx)
2399 }
2400
2401 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2402 let git_blame_gutter_max_author_length = self
2403 .render_git_blame_gutter(cx)
2404 .then(|| {
2405 if let Some(blame) = self.blame.as_ref() {
2406 let max_author_length =
2407 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2408 Some(max_author_length)
2409 } else {
2410 None
2411 }
2412 })
2413 .flatten();
2414
2415 EditorSnapshot {
2416 mode: self.mode,
2417 show_gutter: self.show_gutter,
2418 show_line_numbers: self.show_line_numbers,
2419 show_git_diff_gutter: self.show_git_diff_gutter,
2420 show_code_actions: self.show_code_actions,
2421 show_runnables: self.show_runnables,
2422 git_blame_gutter_max_author_length,
2423 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2424 scroll_anchor: self.scroll_manager.anchor(),
2425 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2426 placeholder_text: self.placeholder_text.clone(),
2427 is_focused: self.focus_handle.is_focused(cx),
2428 current_line_highlight: self
2429 .current_line_highlight
2430 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2431 gutter_hovered: self.gutter_hovered,
2432 }
2433 }
2434
2435 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2436 self.buffer.read(cx).language_at(point, cx)
2437 }
2438
2439 pub fn file_at<T: ToOffset>(
2440 &self,
2441 point: T,
2442 cx: &AppContext,
2443 ) -> Option<Arc<dyn language::File>> {
2444 self.buffer.read(cx).read(cx).file_at(point).cloned()
2445 }
2446
2447 pub fn active_excerpt(
2448 &self,
2449 cx: &AppContext,
2450 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2451 self.buffer
2452 .read(cx)
2453 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2454 }
2455
2456 pub fn mode(&self) -> EditorMode {
2457 self.mode
2458 }
2459
2460 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2461 self.collaboration_hub.as_deref()
2462 }
2463
2464 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2465 self.collaboration_hub = Some(hub);
2466 }
2467
2468 pub fn set_custom_context_menu(
2469 &mut self,
2470 f: impl 'static
2471 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2472 ) {
2473 self.custom_context_menu = Some(Box::new(f))
2474 }
2475
2476 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2477 self.completion_provider = provider;
2478 }
2479
2480 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2481 self.semantics_provider.clone()
2482 }
2483
2484 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2485 self.semantics_provider = provider;
2486 }
2487
2488 pub fn set_inline_completion_provider<T>(
2489 &mut self,
2490 provider: Option<Model<T>>,
2491 cx: &mut ViewContext<Self>,
2492 ) where
2493 T: InlineCompletionProvider,
2494 {
2495 self.inline_completion_provider =
2496 provider.map(|provider| RegisteredInlineCompletionProvider {
2497 _subscription: cx.observe(&provider, |this, _, cx| {
2498 if this.focus_handle.is_focused(cx) {
2499 this.update_visible_inline_completion(cx);
2500 }
2501 }),
2502 provider: Arc::new(provider),
2503 });
2504 self.refresh_inline_completion(false, false, cx);
2505 }
2506
2507 pub fn set_active_line_trailer_provider<T>(
2508 &mut self,
2509 provider: Option<T>,
2510 _cx: &mut ViewContext<Self>,
2511 ) where
2512 T: ActiveLineTrailerProvider + 'static,
2513 {
2514 self.active_line_trailer_provider = provider.map(|provider| Box::new(provider) as Box<_>);
2515 }
2516
2517 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2518 self.placeholder_text.as_deref()
2519 }
2520
2521 pub fn set_placeholder_text(
2522 &mut self,
2523 placeholder_text: impl Into<Arc<str>>,
2524 cx: &mut ViewContext<Self>,
2525 ) {
2526 let placeholder_text = Some(placeholder_text.into());
2527 if self.placeholder_text != placeholder_text {
2528 self.placeholder_text = placeholder_text;
2529 cx.notify();
2530 }
2531 }
2532
2533 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2534 self.cursor_shape = cursor_shape;
2535
2536 // Disrupt blink for immediate user feedback that the cursor shape has changed
2537 self.blink_manager.update(cx, BlinkManager::show_cursor);
2538
2539 cx.notify();
2540 }
2541
2542 pub fn set_current_line_highlight(
2543 &mut self,
2544 current_line_highlight: Option<CurrentLineHighlight>,
2545 ) {
2546 self.current_line_highlight = current_line_highlight;
2547 }
2548
2549 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2550 self.collapse_matches = collapse_matches;
2551 }
2552
2553 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2554 if self.collapse_matches {
2555 return range.start..range.start;
2556 }
2557 range.clone()
2558 }
2559
2560 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2561 if self.display_map.read(cx).clip_at_line_ends != clip {
2562 self.display_map
2563 .update(cx, |map, _| map.clip_at_line_ends = clip);
2564 }
2565 }
2566
2567 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2568 self.input_enabled = input_enabled;
2569 }
2570
2571 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2572 self.enable_inline_completions = enabled;
2573 }
2574
2575 pub fn set_autoindent(&mut self, autoindent: bool) {
2576 if autoindent {
2577 self.autoindent_mode = Some(AutoindentMode::EachLine);
2578 } else {
2579 self.autoindent_mode = None;
2580 }
2581 }
2582
2583 pub fn read_only(&self, cx: &AppContext) -> bool {
2584 self.read_only || self.buffer.read(cx).read_only()
2585 }
2586
2587 pub fn set_read_only(&mut self, read_only: bool) {
2588 self.read_only = read_only;
2589 }
2590
2591 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2592 self.use_autoclose = autoclose;
2593 }
2594
2595 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2596 self.use_auto_surround = auto_surround;
2597 }
2598
2599 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2600 self.auto_replace_emoji_shortcode = auto_replace;
2601 }
2602
2603 pub fn toggle_inline_completions(
2604 &mut self,
2605 _: &ToggleInlineCompletions,
2606 cx: &mut ViewContext<Self>,
2607 ) {
2608 if self.show_inline_completions_override.is_some() {
2609 self.set_show_inline_completions(None, cx);
2610 } else {
2611 let cursor = self.selections.newest_anchor().head();
2612 if let Some((buffer, cursor_buffer_position)) =
2613 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2614 {
2615 let show_inline_completions =
2616 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2617 self.set_show_inline_completions(Some(show_inline_completions), cx);
2618 }
2619 }
2620 }
2621
2622 pub fn set_show_inline_completions(
2623 &mut self,
2624 show_inline_completions: Option<bool>,
2625 cx: &mut ViewContext<Self>,
2626 ) {
2627 self.show_inline_completions_override = show_inline_completions;
2628 self.refresh_inline_completion(false, true, cx);
2629 }
2630
2631 fn should_show_inline_completions(
2632 &self,
2633 buffer: &Model<Buffer>,
2634 buffer_position: language::Anchor,
2635 cx: &AppContext,
2636 ) -> bool {
2637 if !self.snippet_stack.is_empty() {
2638 return false;
2639 }
2640
2641 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
2642 return false;
2643 }
2644
2645 if let Some(provider) = self.inline_completion_provider() {
2646 if let Some(show_inline_completions) = self.show_inline_completions_override {
2647 show_inline_completions
2648 } else {
2649 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2650 }
2651 } else {
2652 false
2653 }
2654 }
2655
2656 fn inline_completions_disabled_in_scope(
2657 &self,
2658 buffer: &Model<Buffer>,
2659 buffer_position: language::Anchor,
2660 cx: &AppContext,
2661 ) -> bool {
2662 let snapshot = buffer.read(cx).snapshot();
2663 let settings = snapshot.settings_at(buffer_position, cx);
2664
2665 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
2666 return false;
2667 };
2668
2669 scope.override_name().map_or(false, |scope_name| {
2670 settings
2671 .inline_completions_disabled_in
2672 .iter()
2673 .any(|s| s == scope_name)
2674 })
2675 }
2676
2677 pub fn set_use_modal_editing(&mut self, to: bool) {
2678 self.use_modal_editing = to;
2679 }
2680
2681 pub fn use_modal_editing(&self) -> bool {
2682 self.use_modal_editing
2683 }
2684
2685 fn selections_did_change(
2686 &mut self,
2687 local: bool,
2688 old_cursor_position: &Anchor,
2689 show_completions: bool,
2690 cx: &mut ViewContext<Self>,
2691 ) {
2692 cx.invalidate_character_coordinates();
2693
2694 // Copy selections to primary selection buffer
2695 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2696 if local {
2697 let selections = self.selections.all::<usize>(cx);
2698 let buffer_handle = self.buffer.read(cx).read(cx);
2699
2700 let mut text = String::new();
2701 for (index, selection) in selections.iter().enumerate() {
2702 let text_for_selection = buffer_handle
2703 .text_for_range(selection.start..selection.end)
2704 .collect::<String>();
2705
2706 text.push_str(&text_for_selection);
2707 if index != selections.len() - 1 {
2708 text.push('\n');
2709 }
2710 }
2711
2712 if !text.is_empty() {
2713 cx.write_to_primary(ClipboardItem::new_string(text));
2714 }
2715 }
2716
2717 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2718 self.buffer.update(cx, |buffer, cx| {
2719 buffer.set_active_selections(
2720 &self.selections.disjoint_anchors(),
2721 self.selections.line_mode,
2722 self.cursor_shape,
2723 cx,
2724 )
2725 });
2726 }
2727 let display_map = self
2728 .display_map
2729 .update(cx, |display_map, cx| display_map.snapshot(cx));
2730 let buffer = &display_map.buffer_snapshot;
2731 self.add_selections_state = None;
2732 self.select_next_state = None;
2733 self.select_prev_state = None;
2734 self.select_larger_syntax_node_stack.clear();
2735 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2736 self.snippet_stack
2737 .invalidate(&self.selections.disjoint_anchors(), buffer);
2738 self.take_rename(false, cx);
2739
2740 let new_cursor_position = self.selections.newest_anchor().head();
2741
2742 self.push_to_nav_history(
2743 *old_cursor_position,
2744 Some(new_cursor_position.to_point(buffer)),
2745 cx,
2746 );
2747
2748 if local {
2749 let new_cursor_position = self.selections.newest_anchor().head();
2750 let mut context_menu = self.context_menu.write();
2751 let completion_menu = match context_menu.as_ref() {
2752 Some(ContextMenu::Completions(menu)) => Some(menu),
2753
2754 _ => {
2755 *context_menu = None;
2756 None
2757 }
2758 };
2759
2760 if let Some(completion_menu) = completion_menu {
2761 let cursor_position = new_cursor_position.to_offset(buffer);
2762 let (word_range, kind) =
2763 buffer.surrounding_word(completion_menu.initial_position, true);
2764 if kind == Some(CharKind::Word)
2765 && word_range.to_inclusive().contains(&cursor_position)
2766 {
2767 let mut completion_menu = completion_menu.clone();
2768 drop(context_menu);
2769
2770 let query = Self::completion_query(buffer, cursor_position);
2771 cx.spawn(move |this, mut cx| async move {
2772 completion_menu
2773 .filter(query.as_deref(), cx.background_executor().clone())
2774 .await;
2775
2776 this.update(&mut cx, |this, cx| {
2777 let mut context_menu = this.context_menu.write();
2778 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2779 return;
2780 };
2781
2782 if menu.id > completion_menu.id {
2783 return;
2784 }
2785
2786 *context_menu = Some(ContextMenu::Completions(completion_menu));
2787 drop(context_menu);
2788 cx.notify();
2789 })
2790 })
2791 .detach();
2792
2793 if show_completions {
2794 self.show_completions(&ShowCompletions { trigger: None }, cx);
2795 }
2796 } else {
2797 drop(context_menu);
2798 self.hide_context_menu(cx);
2799 }
2800 } else {
2801 drop(context_menu);
2802 }
2803
2804 hide_hover(self, cx);
2805
2806 if old_cursor_position.to_display_point(&display_map).row()
2807 != new_cursor_position.to_display_point(&display_map).row()
2808 {
2809 self.available_code_actions.take();
2810 }
2811 self.refresh_code_actions(cx);
2812 self.refresh_document_highlights(cx);
2813 refresh_matching_bracket_highlights(self, cx);
2814 self.discard_inline_completion(false, cx);
2815 linked_editing_ranges::refresh_linked_ranges(self, cx);
2816 if self.git_blame_inline_enabled {
2817 self.start_inline_blame_timer(cx);
2818 }
2819 }
2820
2821 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2822 cx.emit(EditorEvent::SelectionsChanged { local });
2823
2824 if self.selections.disjoint_anchors().len() == 1 {
2825 cx.emit(SearchEvent::ActiveMatchChanged)
2826 }
2827 cx.notify();
2828 }
2829
2830 pub fn change_selections<R>(
2831 &mut self,
2832 autoscroll: Option<Autoscroll>,
2833 cx: &mut ViewContext<Self>,
2834 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2835 ) -> R {
2836 self.change_selections_inner(autoscroll, true, cx, change)
2837 }
2838
2839 pub fn change_selections_inner<R>(
2840 &mut self,
2841 autoscroll: Option<Autoscroll>,
2842 request_completions: bool,
2843 cx: &mut ViewContext<Self>,
2844 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2845 ) -> R {
2846 let old_cursor_position = self.selections.newest_anchor().head();
2847 self.push_to_selection_history();
2848
2849 let (changed, result) = self.selections.change_with(cx, change);
2850
2851 if changed {
2852 if let Some(autoscroll) = autoscroll {
2853 self.request_autoscroll(autoscroll, cx);
2854 }
2855 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2856
2857 if self.should_open_signature_help_automatically(
2858 &old_cursor_position,
2859 self.signature_help_state.backspace_pressed(),
2860 cx,
2861 ) {
2862 self.show_signature_help(&ShowSignatureHelp, cx);
2863 }
2864 self.signature_help_state.set_backspace_pressed(false);
2865 }
2866
2867 result
2868 }
2869
2870 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2871 where
2872 I: IntoIterator<Item = (Range<S>, T)>,
2873 S: ToOffset,
2874 T: Into<Arc<str>>,
2875 {
2876 if self.read_only(cx) {
2877 return;
2878 }
2879
2880 self.buffer
2881 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2882 }
2883
2884 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2885 where
2886 I: IntoIterator<Item = (Range<S>, T)>,
2887 S: ToOffset,
2888 T: Into<Arc<str>>,
2889 {
2890 if self.read_only(cx) {
2891 return;
2892 }
2893
2894 self.buffer.update(cx, |buffer, cx| {
2895 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2896 });
2897 }
2898
2899 pub fn edit_with_block_indent<I, S, T>(
2900 &mut self,
2901 edits: I,
2902 original_indent_columns: Vec<u32>,
2903 cx: &mut ViewContext<Self>,
2904 ) where
2905 I: IntoIterator<Item = (Range<S>, T)>,
2906 S: ToOffset,
2907 T: Into<Arc<str>>,
2908 {
2909 if self.read_only(cx) {
2910 return;
2911 }
2912
2913 self.buffer.update(cx, |buffer, cx| {
2914 buffer.edit(
2915 edits,
2916 Some(AutoindentMode::Block {
2917 original_indent_columns,
2918 }),
2919 cx,
2920 )
2921 });
2922 }
2923
2924 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2925 self.hide_context_menu(cx);
2926
2927 match phase {
2928 SelectPhase::Begin {
2929 position,
2930 add,
2931 click_count,
2932 } => self.begin_selection(position, add, click_count, cx),
2933 SelectPhase::BeginColumnar {
2934 position,
2935 goal_column,
2936 reset,
2937 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2938 SelectPhase::Extend {
2939 position,
2940 click_count,
2941 } => self.extend_selection(position, click_count, cx),
2942 SelectPhase::Update {
2943 position,
2944 goal_column,
2945 scroll_delta,
2946 } => self.update_selection(position, goal_column, scroll_delta, cx),
2947 SelectPhase::End => self.end_selection(cx),
2948 }
2949 }
2950
2951 fn extend_selection(
2952 &mut self,
2953 position: DisplayPoint,
2954 click_count: usize,
2955 cx: &mut ViewContext<Self>,
2956 ) {
2957 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2958 let tail = self.selections.newest::<usize>(cx).tail();
2959 self.begin_selection(position, false, click_count, cx);
2960
2961 let position = position.to_offset(&display_map, Bias::Left);
2962 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2963
2964 let mut pending_selection = self
2965 .selections
2966 .pending_anchor()
2967 .expect("extend_selection not called with pending selection");
2968 if position >= tail {
2969 pending_selection.start = tail_anchor;
2970 } else {
2971 pending_selection.end = tail_anchor;
2972 pending_selection.reversed = true;
2973 }
2974
2975 let mut pending_mode = self.selections.pending_mode().unwrap();
2976 match &mut pending_mode {
2977 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2978 _ => {}
2979 }
2980
2981 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2982 s.set_pending(pending_selection, pending_mode)
2983 });
2984 }
2985
2986 fn begin_selection(
2987 &mut self,
2988 position: DisplayPoint,
2989 add: bool,
2990 click_count: usize,
2991 cx: &mut ViewContext<Self>,
2992 ) {
2993 if !self.focus_handle.is_focused(cx) {
2994 self.last_focused_descendant = None;
2995 cx.focus(&self.focus_handle);
2996 }
2997
2998 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2999 let buffer = &display_map.buffer_snapshot;
3000 let newest_selection = self.selections.newest_anchor().clone();
3001 let position = display_map.clip_point(position, Bias::Left);
3002
3003 let start;
3004 let end;
3005 let mode;
3006 let auto_scroll;
3007 match click_count {
3008 1 => {
3009 start = buffer.anchor_before(position.to_point(&display_map));
3010 end = start;
3011 mode = SelectMode::Character;
3012 auto_scroll = true;
3013 }
3014 2 => {
3015 let range = movement::surrounding_word(&display_map, position);
3016 start = buffer.anchor_before(range.start.to_point(&display_map));
3017 end = buffer.anchor_before(range.end.to_point(&display_map));
3018 mode = SelectMode::Word(start..end);
3019 auto_scroll = true;
3020 }
3021 3 => {
3022 let position = display_map
3023 .clip_point(position, Bias::Left)
3024 .to_point(&display_map);
3025 let line_start = display_map.prev_line_boundary(position).0;
3026 let next_line_start = buffer.clip_point(
3027 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3028 Bias::Left,
3029 );
3030 start = buffer.anchor_before(line_start);
3031 end = buffer.anchor_before(next_line_start);
3032 mode = SelectMode::Line(start..end);
3033 auto_scroll = true;
3034 }
3035 _ => {
3036 start = buffer.anchor_before(0);
3037 end = buffer.anchor_before(buffer.len());
3038 mode = SelectMode::All;
3039 auto_scroll = false;
3040 }
3041 }
3042
3043 let point_to_delete: Option<usize> = {
3044 let selected_points: Vec<Selection<Point>> =
3045 self.selections.disjoint_in_range(start..end, cx);
3046
3047 if !add || click_count > 1 {
3048 None
3049 } else if !selected_points.is_empty() {
3050 Some(selected_points[0].id)
3051 } else {
3052 let clicked_point_already_selected =
3053 self.selections.disjoint.iter().find(|selection| {
3054 selection.start.to_point(buffer) == start.to_point(buffer)
3055 || selection.end.to_point(buffer) == end.to_point(buffer)
3056 });
3057
3058 clicked_point_already_selected.map(|selection| selection.id)
3059 }
3060 };
3061
3062 let selections_count = self.selections.count();
3063
3064 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
3065 if let Some(point_to_delete) = point_to_delete {
3066 s.delete(point_to_delete);
3067
3068 if selections_count == 1 {
3069 s.set_pending_anchor_range(start..end, mode);
3070 }
3071 } else {
3072 if !add {
3073 s.clear_disjoint();
3074 } else if click_count > 1 {
3075 s.delete(newest_selection.id)
3076 }
3077
3078 s.set_pending_anchor_range(start..end, mode);
3079 }
3080 });
3081 }
3082
3083 fn begin_columnar_selection(
3084 &mut self,
3085 position: DisplayPoint,
3086 goal_column: u32,
3087 reset: bool,
3088 cx: &mut ViewContext<Self>,
3089 ) {
3090 if !self.focus_handle.is_focused(cx) {
3091 self.last_focused_descendant = None;
3092 cx.focus(&self.focus_handle);
3093 }
3094
3095 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3096
3097 if reset {
3098 let pointer_position = display_map
3099 .buffer_snapshot
3100 .anchor_before(position.to_point(&display_map));
3101
3102 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
3103 s.clear_disjoint();
3104 s.set_pending_anchor_range(
3105 pointer_position..pointer_position,
3106 SelectMode::Character,
3107 );
3108 });
3109 }
3110
3111 let tail = self.selections.newest::<Point>(cx).tail();
3112 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
3113
3114 if !reset {
3115 self.select_columns(
3116 tail.to_display_point(&display_map),
3117 position,
3118 goal_column,
3119 &display_map,
3120 cx,
3121 );
3122 }
3123 }
3124
3125 fn update_selection(
3126 &mut self,
3127 position: DisplayPoint,
3128 goal_column: u32,
3129 scroll_delta: gpui::Point<f32>,
3130 cx: &mut ViewContext<Self>,
3131 ) {
3132 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3133
3134 if let Some(tail) = self.columnar_selection_tail.as_ref() {
3135 let tail = tail.to_display_point(&display_map);
3136 self.select_columns(tail, position, goal_column, &display_map, cx);
3137 } else if let Some(mut pending) = self.selections.pending_anchor() {
3138 let buffer = self.buffer.read(cx).snapshot(cx);
3139 let head;
3140 let tail;
3141 let mode = self.selections.pending_mode().unwrap();
3142 match &mode {
3143 SelectMode::Character => {
3144 head = position.to_point(&display_map);
3145 tail = pending.tail().to_point(&buffer);
3146 }
3147 SelectMode::Word(original_range) => {
3148 let original_display_range = original_range.start.to_display_point(&display_map)
3149 ..original_range.end.to_display_point(&display_map);
3150 let original_buffer_range = original_display_range.start.to_point(&display_map)
3151 ..original_display_range.end.to_point(&display_map);
3152 if movement::is_inside_word(&display_map, position)
3153 || original_display_range.contains(&position)
3154 {
3155 let word_range = movement::surrounding_word(&display_map, position);
3156 if word_range.start < original_display_range.start {
3157 head = word_range.start.to_point(&display_map);
3158 } else {
3159 head = word_range.end.to_point(&display_map);
3160 }
3161 } else {
3162 head = position.to_point(&display_map);
3163 }
3164
3165 if head <= original_buffer_range.start {
3166 tail = original_buffer_range.end;
3167 } else {
3168 tail = original_buffer_range.start;
3169 }
3170 }
3171 SelectMode::Line(original_range) => {
3172 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3173
3174 let position = display_map
3175 .clip_point(position, Bias::Left)
3176 .to_point(&display_map);
3177 let line_start = display_map.prev_line_boundary(position).0;
3178 let next_line_start = buffer.clip_point(
3179 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3180 Bias::Left,
3181 );
3182
3183 if line_start < original_range.start {
3184 head = line_start
3185 } else {
3186 head = next_line_start
3187 }
3188
3189 if head <= original_range.start {
3190 tail = original_range.end;
3191 } else {
3192 tail = original_range.start;
3193 }
3194 }
3195 SelectMode::All => {
3196 return;
3197 }
3198 };
3199
3200 if head < tail {
3201 pending.start = buffer.anchor_before(head);
3202 pending.end = buffer.anchor_before(tail);
3203 pending.reversed = true;
3204 } else {
3205 pending.start = buffer.anchor_before(tail);
3206 pending.end = buffer.anchor_before(head);
3207 pending.reversed = false;
3208 }
3209
3210 self.change_selections(None, cx, |s| {
3211 s.set_pending(pending, mode);
3212 });
3213 } else {
3214 log::error!("update_selection dispatched with no pending selection");
3215 return;
3216 }
3217
3218 self.apply_scroll_delta(scroll_delta, cx);
3219 cx.notify();
3220 }
3221
3222 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3223 self.columnar_selection_tail.take();
3224 if self.selections.pending_anchor().is_some() {
3225 let selections = self.selections.all::<usize>(cx);
3226 self.change_selections(None, cx, |s| {
3227 s.select(selections);
3228 s.clear_pending();
3229 });
3230 }
3231 }
3232
3233 fn select_columns(
3234 &mut self,
3235 tail: DisplayPoint,
3236 head: DisplayPoint,
3237 goal_column: u32,
3238 display_map: &DisplaySnapshot,
3239 cx: &mut ViewContext<Self>,
3240 ) {
3241 let start_row = cmp::min(tail.row(), head.row());
3242 let end_row = cmp::max(tail.row(), head.row());
3243 let start_column = cmp::min(tail.column(), goal_column);
3244 let end_column = cmp::max(tail.column(), goal_column);
3245 let reversed = start_column < tail.column();
3246
3247 let selection_ranges = (start_row.0..=end_row.0)
3248 .map(DisplayRow)
3249 .filter_map(|row| {
3250 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3251 let start = display_map
3252 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3253 .to_point(display_map);
3254 let end = display_map
3255 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3256 .to_point(display_map);
3257 if reversed {
3258 Some(end..start)
3259 } else {
3260 Some(start..end)
3261 }
3262 } else {
3263 None
3264 }
3265 })
3266 .collect::<Vec<_>>();
3267
3268 self.change_selections(None, cx, |s| {
3269 s.select_ranges(selection_ranges);
3270 });
3271 cx.notify();
3272 }
3273
3274 pub fn has_pending_nonempty_selection(&self) -> bool {
3275 let pending_nonempty_selection = match self.selections.pending_anchor() {
3276 Some(Selection { start, end, .. }) => start != end,
3277 None => false,
3278 };
3279
3280 pending_nonempty_selection
3281 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3282 }
3283
3284 pub fn has_pending_selection(&self) -> bool {
3285 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3286 }
3287
3288 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3289 if self.clear_expanded_diff_hunks(cx) {
3290 cx.notify();
3291 return;
3292 }
3293 if self.dismiss_menus_and_popups(true, cx) {
3294 return;
3295 }
3296
3297 if self.mode == EditorMode::Full
3298 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3299 {
3300 return;
3301 }
3302
3303 cx.propagate();
3304 }
3305
3306 pub fn dismiss_menus_and_popups(
3307 &mut self,
3308 should_report_inline_completion_event: bool,
3309 cx: &mut ViewContext<Self>,
3310 ) -> bool {
3311 if self.take_rename(false, cx).is_some() {
3312 return true;
3313 }
3314
3315 if hide_hover(self, cx) {
3316 return true;
3317 }
3318
3319 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3320 return true;
3321 }
3322
3323 if self.hide_context_menu(cx).is_some() {
3324 return true;
3325 }
3326
3327 if self.mouse_context_menu.take().is_some() {
3328 return true;
3329 }
3330
3331 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3332 return true;
3333 }
3334
3335 if self.snippet_stack.pop().is_some() {
3336 return true;
3337 }
3338
3339 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3340 self.dismiss_diagnostics(cx);
3341 return true;
3342 }
3343
3344 false
3345 }
3346
3347 fn linked_editing_ranges_for(
3348 &self,
3349 selection: Range<text::Anchor>,
3350 cx: &AppContext,
3351 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3352 if self.linked_edit_ranges.is_empty() {
3353 return None;
3354 }
3355 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3356 selection.end.buffer_id.and_then(|end_buffer_id| {
3357 if selection.start.buffer_id != Some(end_buffer_id) {
3358 return None;
3359 }
3360 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3361 let snapshot = buffer.read(cx).snapshot();
3362 self.linked_edit_ranges
3363 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3364 .map(|ranges| (ranges, snapshot, buffer))
3365 })?;
3366 use text::ToOffset as TO;
3367 // find offset from the start of current range to current cursor position
3368 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3369
3370 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3371 let start_difference = start_offset - start_byte_offset;
3372 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3373 let end_difference = end_offset - start_byte_offset;
3374 // Current range has associated linked ranges.
3375 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3376 for range in linked_ranges.iter() {
3377 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3378 let end_offset = start_offset + end_difference;
3379 let start_offset = start_offset + start_difference;
3380 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3381 continue;
3382 }
3383 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3384 if s.start.buffer_id != selection.start.buffer_id
3385 || s.end.buffer_id != selection.end.buffer_id
3386 {
3387 return false;
3388 }
3389 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3390 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3391 }) {
3392 continue;
3393 }
3394 let start = buffer_snapshot.anchor_after(start_offset);
3395 let end = buffer_snapshot.anchor_after(end_offset);
3396 linked_edits
3397 .entry(buffer.clone())
3398 .or_default()
3399 .push(start..end);
3400 }
3401 Some(linked_edits)
3402 }
3403
3404 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3405 let text: Arc<str> = text.into();
3406
3407 if self.read_only(cx) {
3408 return;
3409 }
3410
3411 let selections = self.selections.all_adjusted(cx);
3412 let mut bracket_inserted = false;
3413 let mut edits = Vec::new();
3414 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3415 let mut new_selections = Vec::with_capacity(selections.len());
3416 let mut new_autoclose_regions = Vec::new();
3417 let snapshot = self.buffer.read(cx).read(cx);
3418
3419 for (selection, autoclose_region) in
3420 self.selections_with_autoclose_regions(selections, &snapshot)
3421 {
3422 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3423 // Determine if the inserted text matches the opening or closing
3424 // bracket of any of this language's bracket pairs.
3425 let mut bracket_pair = None;
3426 let mut is_bracket_pair_start = false;
3427 let mut is_bracket_pair_end = false;
3428 if !text.is_empty() {
3429 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3430 // and they are removing the character that triggered IME popup.
3431 for (pair, enabled) in scope.brackets() {
3432 if !pair.close && !pair.surround {
3433 continue;
3434 }
3435
3436 if enabled && pair.start.ends_with(text.as_ref()) {
3437 let prefix_len = pair.start.len() - text.len();
3438 let preceding_text_matches_prefix = prefix_len == 0
3439 || (selection.start.column >= (prefix_len as u32)
3440 && snapshot.contains_str_at(
3441 Point::new(
3442 selection.start.row,
3443 selection.start.column - (prefix_len as u32),
3444 ),
3445 &pair.start[..prefix_len],
3446 ));
3447 if preceding_text_matches_prefix {
3448 bracket_pair = Some(pair.clone());
3449 is_bracket_pair_start = true;
3450 break;
3451 }
3452 }
3453 if pair.end.as_str() == text.as_ref() {
3454 bracket_pair = Some(pair.clone());
3455 is_bracket_pair_end = true;
3456 break;
3457 }
3458 }
3459 }
3460
3461 if let Some(bracket_pair) = bracket_pair {
3462 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3463 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3464 let auto_surround =
3465 self.use_auto_surround && snapshot_settings.use_auto_surround;
3466 if selection.is_empty() {
3467 if is_bracket_pair_start {
3468 // If the inserted text is a suffix of an opening bracket and the
3469 // selection is preceded by the rest of the opening bracket, then
3470 // insert the closing bracket.
3471 let following_text_allows_autoclose = snapshot
3472 .chars_at(selection.start)
3473 .next()
3474 .map_or(true, |c| scope.should_autoclose_before(c));
3475
3476 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3477 && bracket_pair.start.len() == 1
3478 {
3479 let target = bracket_pair.start.chars().next().unwrap();
3480 let current_line_count = snapshot
3481 .reversed_chars_at(selection.start)
3482 .take_while(|&c| c != '\n')
3483 .filter(|&c| c == target)
3484 .count();
3485 current_line_count % 2 == 1
3486 } else {
3487 false
3488 };
3489
3490 if autoclose
3491 && bracket_pair.close
3492 && following_text_allows_autoclose
3493 && !is_closing_quote
3494 {
3495 let anchor = snapshot.anchor_before(selection.end);
3496 new_selections.push((selection.map(|_| anchor), text.len()));
3497 new_autoclose_regions.push((
3498 anchor,
3499 text.len(),
3500 selection.id,
3501 bracket_pair.clone(),
3502 ));
3503 edits.push((
3504 selection.range(),
3505 format!("{}{}", text, bracket_pair.end).into(),
3506 ));
3507 bracket_inserted = true;
3508 continue;
3509 }
3510 }
3511
3512 if let Some(region) = autoclose_region {
3513 // If the selection is followed by an auto-inserted closing bracket,
3514 // then don't insert that closing bracket again; just move the selection
3515 // past the closing bracket.
3516 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3517 && text.as_ref() == region.pair.end.as_str();
3518 if should_skip {
3519 let anchor = snapshot.anchor_after(selection.end);
3520 new_selections
3521 .push((selection.map(|_| anchor), region.pair.end.len()));
3522 continue;
3523 }
3524 }
3525
3526 let always_treat_brackets_as_autoclosed = snapshot
3527 .settings_at(selection.start, cx)
3528 .always_treat_brackets_as_autoclosed;
3529 if always_treat_brackets_as_autoclosed
3530 && is_bracket_pair_end
3531 && snapshot.contains_str_at(selection.end, text.as_ref())
3532 {
3533 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3534 // and the inserted text is a closing bracket and the selection is followed
3535 // by the closing bracket then move the selection past the closing bracket.
3536 let anchor = snapshot.anchor_after(selection.end);
3537 new_selections.push((selection.map(|_| anchor), text.len()));
3538 continue;
3539 }
3540 }
3541 // If an opening bracket is 1 character long and is typed while
3542 // text is selected, then surround that text with the bracket pair.
3543 else if auto_surround
3544 && bracket_pair.surround
3545 && is_bracket_pair_start
3546 && bracket_pair.start.chars().count() == 1
3547 {
3548 edits.push((selection.start..selection.start, text.clone()));
3549 edits.push((
3550 selection.end..selection.end,
3551 bracket_pair.end.as_str().into(),
3552 ));
3553 bracket_inserted = true;
3554 new_selections.push((
3555 Selection {
3556 id: selection.id,
3557 start: snapshot.anchor_after(selection.start),
3558 end: snapshot.anchor_before(selection.end),
3559 reversed: selection.reversed,
3560 goal: selection.goal,
3561 },
3562 0,
3563 ));
3564 continue;
3565 }
3566 }
3567 }
3568
3569 if self.auto_replace_emoji_shortcode
3570 && selection.is_empty()
3571 && text.as_ref().ends_with(':')
3572 {
3573 if let Some(possible_emoji_short_code) =
3574 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3575 {
3576 if !possible_emoji_short_code.is_empty() {
3577 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3578 let emoji_shortcode_start = Point::new(
3579 selection.start.row,
3580 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3581 );
3582
3583 // Remove shortcode from buffer
3584 edits.push((
3585 emoji_shortcode_start..selection.start,
3586 "".to_string().into(),
3587 ));
3588 new_selections.push((
3589 Selection {
3590 id: selection.id,
3591 start: snapshot.anchor_after(emoji_shortcode_start),
3592 end: snapshot.anchor_before(selection.start),
3593 reversed: selection.reversed,
3594 goal: selection.goal,
3595 },
3596 0,
3597 ));
3598
3599 // Insert emoji
3600 let selection_start_anchor = snapshot.anchor_after(selection.start);
3601 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3602 edits.push((selection.start..selection.end, emoji.to_string().into()));
3603
3604 continue;
3605 }
3606 }
3607 }
3608 }
3609
3610 // If not handling any auto-close operation, then just replace the selected
3611 // text with the given input and move the selection to the end of the
3612 // newly inserted text.
3613 let anchor = snapshot.anchor_after(selection.end);
3614 if !self.linked_edit_ranges.is_empty() {
3615 let start_anchor = snapshot.anchor_before(selection.start);
3616
3617 let is_word_char = text.chars().next().map_or(true, |char| {
3618 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3619 classifier.is_word(char)
3620 });
3621
3622 if is_word_char {
3623 if let Some(ranges) = self
3624 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3625 {
3626 for (buffer, edits) in ranges {
3627 linked_edits
3628 .entry(buffer.clone())
3629 .or_default()
3630 .extend(edits.into_iter().map(|range| (range, text.clone())));
3631 }
3632 }
3633 }
3634 }
3635
3636 new_selections.push((selection.map(|_| anchor), 0));
3637 edits.push((selection.start..selection.end, text.clone()));
3638 }
3639
3640 drop(snapshot);
3641
3642 self.transact(cx, |this, cx| {
3643 this.buffer.update(cx, |buffer, cx| {
3644 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3645 });
3646 for (buffer, edits) in linked_edits {
3647 buffer.update(cx, |buffer, cx| {
3648 let snapshot = buffer.snapshot();
3649 let edits = edits
3650 .into_iter()
3651 .map(|(range, text)| {
3652 use text::ToPoint as TP;
3653 let end_point = TP::to_point(&range.end, &snapshot);
3654 let start_point = TP::to_point(&range.start, &snapshot);
3655 (start_point..end_point, text)
3656 })
3657 .sorted_by_key(|(range, _)| range.start)
3658 .collect::<Vec<_>>();
3659 buffer.edit(edits, None, cx);
3660 })
3661 }
3662 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3663 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3664 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3665 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3666 .zip(new_selection_deltas)
3667 .map(|(selection, delta)| Selection {
3668 id: selection.id,
3669 start: selection.start + delta,
3670 end: selection.end + delta,
3671 reversed: selection.reversed,
3672 goal: SelectionGoal::None,
3673 })
3674 .collect::<Vec<_>>();
3675
3676 let mut i = 0;
3677 for (position, delta, selection_id, pair) in new_autoclose_regions {
3678 let position = position.to_offset(&map.buffer_snapshot) + delta;
3679 let start = map.buffer_snapshot.anchor_before(position);
3680 let end = map.buffer_snapshot.anchor_after(position);
3681 while let Some(existing_state) = this.autoclose_regions.get(i) {
3682 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3683 Ordering::Less => i += 1,
3684 Ordering::Greater => break,
3685 Ordering::Equal => {
3686 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3687 Ordering::Less => i += 1,
3688 Ordering::Equal => break,
3689 Ordering::Greater => break,
3690 }
3691 }
3692 }
3693 }
3694 this.autoclose_regions.insert(
3695 i,
3696 AutocloseRegion {
3697 selection_id,
3698 range: start..end,
3699 pair,
3700 },
3701 );
3702 }
3703
3704 let had_active_inline_completion = this.has_active_inline_completion(cx);
3705 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3706 s.select(new_selections)
3707 });
3708
3709 if !bracket_inserted {
3710 if let Some(on_type_format_task) =
3711 this.trigger_on_type_formatting(text.to_string(), cx)
3712 {
3713 on_type_format_task.detach_and_log_err(cx);
3714 }
3715 }
3716
3717 let editor_settings = EditorSettings::get_global(cx);
3718 if bracket_inserted
3719 && (editor_settings.auto_signature_help
3720 || editor_settings.show_signature_help_after_edits)
3721 {
3722 this.show_signature_help(&ShowSignatureHelp, cx);
3723 }
3724
3725 let trigger_in_words = !had_active_inline_completion;
3726 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3727 linked_editing_ranges::refresh_linked_ranges(this, cx);
3728 this.refresh_inline_completion(true, false, cx);
3729 });
3730 }
3731
3732 fn find_possible_emoji_shortcode_at_position(
3733 snapshot: &MultiBufferSnapshot,
3734 position: Point,
3735 ) -> Option<String> {
3736 let mut chars = Vec::new();
3737 let mut found_colon = false;
3738 for char in snapshot.reversed_chars_at(position).take(100) {
3739 // Found a possible emoji shortcode in the middle of the buffer
3740 if found_colon {
3741 if char.is_whitespace() {
3742 chars.reverse();
3743 return Some(chars.iter().collect());
3744 }
3745 // If the previous character is not a whitespace, we are in the middle of a word
3746 // and we only want to complete the shortcode if the word is made up of other emojis
3747 let mut containing_word = String::new();
3748 for ch in snapshot
3749 .reversed_chars_at(position)
3750 .skip(chars.len() + 1)
3751 .take(100)
3752 {
3753 if ch.is_whitespace() {
3754 break;
3755 }
3756 containing_word.push(ch);
3757 }
3758 let containing_word = containing_word.chars().rev().collect::<String>();
3759 if util::word_consists_of_emojis(containing_word.as_str()) {
3760 chars.reverse();
3761 return Some(chars.iter().collect());
3762 }
3763 }
3764
3765 if char.is_whitespace() || !char.is_ascii() {
3766 return None;
3767 }
3768 if char == ':' {
3769 found_colon = true;
3770 } else {
3771 chars.push(char);
3772 }
3773 }
3774 // Found a possible emoji shortcode at the beginning of the buffer
3775 chars.reverse();
3776 Some(chars.iter().collect())
3777 }
3778
3779 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3780 self.transact(cx, |this, cx| {
3781 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3782 let selections = this.selections.all::<usize>(cx);
3783 let multi_buffer = this.buffer.read(cx);
3784 let buffer = multi_buffer.snapshot(cx);
3785 selections
3786 .iter()
3787 .map(|selection| {
3788 let start_point = selection.start.to_point(&buffer);
3789 let mut indent =
3790 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3791 indent.len = cmp::min(indent.len, start_point.column);
3792 let start = selection.start;
3793 let end = selection.end;
3794 let selection_is_empty = start == end;
3795 let language_scope = buffer.language_scope_at(start);
3796 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3797 &language_scope
3798 {
3799 let leading_whitespace_len = buffer
3800 .reversed_chars_at(start)
3801 .take_while(|c| c.is_whitespace() && *c != '\n')
3802 .map(|c| c.len_utf8())
3803 .sum::<usize>();
3804
3805 let trailing_whitespace_len = buffer
3806 .chars_at(end)
3807 .take_while(|c| c.is_whitespace() && *c != '\n')
3808 .map(|c| c.len_utf8())
3809 .sum::<usize>();
3810
3811 let insert_extra_newline =
3812 language.brackets().any(|(pair, enabled)| {
3813 let pair_start = pair.start.trim_end();
3814 let pair_end = pair.end.trim_start();
3815
3816 enabled
3817 && pair.newline
3818 && buffer.contains_str_at(
3819 end + trailing_whitespace_len,
3820 pair_end,
3821 )
3822 && buffer.contains_str_at(
3823 (start - leading_whitespace_len)
3824 .saturating_sub(pair_start.len()),
3825 pair_start,
3826 )
3827 });
3828
3829 // Comment extension on newline is allowed only for cursor selections
3830 let comment_delimiter = maybe!({
3831 if !selection_is_empty {
3832 return None;
3833 }
3834
3835 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3836 return None;
3837 }
3838
3839 let delimiters = language.line_comment_prefixes();
3840 let max_len_of_delimiter =
3841 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3842 let (snapshot, range) =
3843 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3844
3845 let mut index_of_first_non_whitespace = 0;
3846 let comment_candidate = snapshot
3847 .chars_for_range(range)
3848 .skip_while(|c| {
3849 let should_skip = c.is_whitespace();
3850 if should_skip {
3851 index_of_first_non_whitespace += 1;
3852 }
3853 should_skip
3854 })
3855 .take(max_len_of_delimiter)
3856 .collect::<String>();
3857 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3858 comment_candidate.starts_with(comment_prefix.as_ref())
3859 })?;
3860 let cursor_is_placed_after_comment_marker =
3861 index_of_first_non_whitespace + comment_prefix.len()
3862 <= start_point.column as usize;
3863 if cursor_is_placed_after_comment_marker {
3864 Some(comment_prefix.clone())
3865 } else {
3866 None
3867 }
3868 });
3869 (comment_delimiter, insert_extra_newline)
3870 } else {
3871 (None, false)
3872 };
3873
3874 let capacity_for_delimiter = comment_delimiter
3875 .as_deref()
3876 .map(str::len)
3877 .unwrap_or_default();
3878 let mut new_text =
3879 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3880 new_text.push('\n');
3881 new_text.extend(indent.chars());
3882 if let Some(delimiter) = &comment_delimiter {
3883 new_text.push_str(delimiter);
3884 }
3885 if insert_extra_newline {
3886 new_text = new_text.repeat(2);
3887 }
3888
3889 let anchor = buffer.anchor_after(end);
3890 let new_selection = selection.map(|_| anchor);
3891 (
3892 (start..end, new_text),
3893 (insert_extra_newline, new_selection),
3894 )
3895 })
3896 .unzip()
3897 };
3898
3899 this.edit_with_autoindent(edits, cx);
3900 let buffer = this.buffer.read(cx).snapshot(cx);
3901 let new_selections = selection_fixup_info
3902 .into_iter()
3903 .map(|(extra_newline_inserted, new_selection)| {
3904 let mut cursor = new_selection.end.to_point(&buffer);
3905 if extra_newline_inserted {
3906 cursor.row -= 1;
3907 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3908 }
3909 new_selection.map(|_| cursor)
3910 })
3911 .collect();
3912
3913 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3914 this.refresh_inline_completion(true, false, cx);
3915 });
3916 }
3917
3918 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3919 let buffer = self.buffer.read(cx);
3920 let snapshot = buffer.snapshot(cx);
3921
3922 let mut edits = Vec::new();
3923 let mut rows = Vec::new();
3924
3925 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3926 let cursor = selection.head();
3927 let row = cursor.row;
3928
3929 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3930
3931 let newline = "\n".to_string();
3932 edits.push((start_of_line..start_of_line, newline));
3933
3934 rows.push(row + rows_inserted as u32);
3935 }
3936
3937 self.transact(cx, |editor, cx| {
3938 editor.edit(edits, cx);
3939
3940 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3941 let mut index = 0;
3942 s.move_cursors_with(|map, _, _| {
3943 let row = rows[index];
3944 index += 1;
3945
3946 let point = Point::new(row, 0);
3947 let boundary = map.next_line_boundary(point).1;
3948 let clipped = map.clip_point(boundary, Bias::Left);
3949
3950 (clipped, SelectionGoal::None)
3951 });
3952 });
3953
3954 let mut indent_edits = Vec::new();
3955 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3956 for row in rows {
3957 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3958 for (row, indent) in indents {
3959 if indent.len == 0 {
3960 continue;
3961 }
3962
3963 let text = match indent.kind {
3964 IndentKind::Space => " ".repeat(indent.len as usize),
3965 IndentKind::Tab => "\t".repeat(indent.len as usize),
3966 };
3967 let point = Point::new(row.0, 0);
3968 indent_edits.push((point..point, text));
3969 }
3970 }
3971 editor.edit(indent_edits, cx);
3972 });
3973 }
3974
3975 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3976 let buffer = self.buffer.read(cx);
3977 let snapshot = buffer.snapshot(cx);
3978
3979 let mut edits = Vec::new();
3980 let mut rows = Vec::new();
3981 let mut rows_inserted = 0;
3982
3983 for selection in self.selections.all_adjusted(cx) {
3984 let cursor = selection.head();
3985 let row = cursor.row;
3986
3987 let point = Point::new(row + 1, 0);
3988 let start_of_line = snapshot.clip_point(point, Bias::Left);
3989
3990 let newline = "\n".to_string();
3991 edits.push((start_of_line..start_of_line, newline));
3992
3993 rows_inserted += 1;
3994 rows.push(row + rows_inserted);
3995 }
3996
3997 self.transact(cx, |editor, cx| {
3998 editor.edit(edits, cx);
3999
4000 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
4001 let mut index = 0;
4002 s.move_cursors_with(|map, _, _| {
4003 let row = rows[index];
4004 index += 1;
4005
4006 let point = Point::new(row, 0);
4007 let boundary = map.next_line_boundary(point).1;
4008 let clipped = map.clip_point(boundary, Bias::Left);
4009
4010 (clipped, SelectionGoal::None)
4011 });
4012 });
4013
4014 let mut indent_edits = Vec::new();
4015 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
4016 for row in rows {
4017 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
4018 for (row, indent) in indents {
4019 if indent.len == 0 {
4020 continue;
4021 }
4022
4023 let text = match indent.kind {
4024 IndentKind::Space => " ".repeat(indent.len as usize),
4025 IndentKind::Tab => "\t".repeat(indent.len as usize),
4026 };
4027 let point = Point::new(row.0, 0);
4028 indent_edits.push((point..point, text));
4029 }
4030 }
4031 editor.edit(indent_edits, cx);
4032 });
4033 }
4034
4035 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
4036 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
4037 original_indent_columns: Vec::new(),
4038 });
4039 self.insert_with_autoindent_mode(text, autoindent, cx);
4040 }
4041
4042 fn insert_with_autoindent_mode(
4043 &mut self,
4044 text: &str,
4045 autoindent_mode: Option<AutoindentMode>,
4046 cx: &mut ViewContext<Self>,
4047 ) {
4048 if self.read_only(cx) {
4049 return;
4050 }
4051
4052 let text: Arc<str> = text.into();
4053 self.transact(cx, |this, cx| {
4054 let old_selections = this.selections.all_adjusted(cx);
4055 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
4056 let anchors = {
4057 let snapshot = buffer.read(cx);
4058 old_selections
4059 .iter()
4060 .map(|s| {
4061 let anchor = snapshot.anchor_after(s.head());
4062 s.map(|_| anchor)
4063 })
4064 .collect::<Vec<_>>()
4065 };
4066 buffer.edit(
4067 old_selections
4068 .iter()
4069 .map(|s| (s.start..s.end, text.clone())),
4070 autoindent_mode,
4071 cx,
4072 );
4073 anchors
4074 });
4075
4076 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4077 s.select_anchors(selection_anchors);
4078 })
4079 });
4080 }
4081
4082 fn trigger_completion_on_input(
4083 &mut self,
4084 text: &str,
4085 trigger_in_words: bool,
4086 cx: &mut ViewContext<Self>,
4087 ) {
4088 if self.is_completion_trigger(text, trigger_in_words, cx) {
4089 self.show_completions(
4090 &ShowCompletions {
4091 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
4092 },
4093 cx,
4094 );
4095 } else {
4096 self.hide_context_menu(cx);
4097 }
4098 }
4099
4100 fn is_completion_trigger(
4101 &self,
4102 text: &str,
4103 trigger_in_words: bool,
4104 cx: &mut ViewContext<Self>,
4105 ) -> bool {
4106 let position = self.selections.newest_anchor().head();
4107 let multibuffer = self.buffer.read(cx);
4108 let Some(buffer) = position
4109 .buffer_id
4110 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
4111 else {
4112 return false;
4113 };
4114
4115 if let Some(completion_provider) = &self.completion_provider {
4116 completion_provider.is_completion_trigger(
4117 &buffer,
4118 position.text_anchor,
4119 text,
4120 trigger_in_words,
4121 cx,
4122 )
4123 } else {
4124 false
4125 }
4126 }
4127
4128 /// If any empty selections is touching the start of its innermost containing autoclose
4129 /// region, expand it to select the brackets.
4130 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
4131 let selections = self.selections.all::<usize>(cx);
4132 let buffer = self.buffer.read(cx).read(cx);
4133 let new_selections = self
4134 .selections_with_autoclose_regions(selections, &buffer)
4135 .map(|(mut selection, region)| {
4136 if !selection.is_empty() {
4137 return selection;
4138 }
4139
4140 if let Some(region) = region {
4141 let mut range = region.range.to_offset(&buffer);
4142 if selection.start == range.start && range.start >= region.pair.start.len() {
4143 range.start -= region.pair.start.len();
4144 if buffer.contains_str_at(range.start, ®ion.pair.start)
4145 && buffer.contains_str_at(range.end, ®ion.pair.end)
4146 {
4147 range.end += region.pair.end.len();
4148 selection.start = range.start;
4149 selection.end = range.end;
4150
4151 return selection;
4152 }
4153 }
4154 }
4155
4156 let always_treat_brackets_as_autoclosed = buffer
4157 .settings_at(selection.start, cx)
4158 .always_treat_brackets_as_autoclosed;
4159
4160 if !always_treat_brackets_as_autoclosed {
4161 return selection;
4162 }
4163
4164 if let Some(scope) = buffer.language_scope_at(selection.start) {
4165 for (pair, enabled) in scope.brackets() {
4166 if !enabled || !pair.close {
4167 continue;
4168 }
4169
4170 if buffer.contains_str_at(selection.start, &pair.end) {
4171 let pair_start_len = pair.start.len();
4172 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
4173 {
4174 selection.start -= pair_start_len;
4175 selection.end += pair.end.len();
4176
4177 return selection;
4178 }
4179 }
4180 }
4181 }
4182
4183 selection
4184 })
4185 .collect();
4186
4187 drop(buffer);
4188 self.change_selections(None, cx, |selections| selections.select(new_selections));
4189 }
4190
4191 /// Iterate the given selections, and for each one, find the smallest surrounding
4192 /// autoclose region. This uses the ordering of the selections and the autoclose
4193 /// regions to avoid repeated comparisons.
4194 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4195 &'a self,
4196 selections: impl IntoIterator<Item = Selection<D>>,
4197 buffer: &'a MultiBufferSnapshot,
4198 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4199 let mut i = 0;
4200 let mut regions = self.autoclose_regions.as_slice();
4201 selections.into_iter().map(move |selection| {
4202 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4203
4204 let mut enclosing = None;
4205 while let Some(pair_state) = regions.get(i) {
4206 if pair_state.range.end.to_offset(buffer) < range.start {
4207 regions = ®ions[i + 1..];
4208 i = 0;
4209 } else if pair_state.range.start.to_offset(buffer) > range.end {
4210 break;
4211 } else {
4212 if pair_state.selection_id == selection.id {
4213 enclosing = Some(pair_state);
4214 }
4215 i += 1;
4216 }
4217 }
4218
4219 (selection, enclosing)
4220 })
4221 }
4222
4223 /// Remove any autoclose regions that no longer contain their selection.
4224 fn invalidate_autoclose_regions(
4225 &mut self,
4226 mut selections: &[Selection<Anchor>],
4227 buffer: &MultiBufferSnapshot,
4228 ) {
4229 self.autoclose_regions.retain(|state| {
4230 let mut i = 0;
4231 while let Some(selection) = selections.get(i) {
4232 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4233 selections = &selections[1..];
4234 continue;
4235 }
4236 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4237 break;
4238 }
4239 if selection.id == state.selection_id {
4240 return true;
4241 } else {
4242 i += 1;
4243 }
4244 }
4245 false
4246 });
4247 }
4248
4249 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4250 let offset = position.to_offset(buffer);
4251 let (word_range, kind) = buffer.surrounding_word(offset, true);
4252 if offset > word_range.start && kind == Some(CharKind::Word) {
4253 Some(
4254 buffer
4255 .text_for_range(word_range.start..offset)
4256 .collect::<String>(),
4257 )
4258 } else {
4259 None
4260 }
4261 }
4262
4263 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4264 self.refresh_inlay_hints(
4265 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4266 cx,
4267 );
4268 }
4269
4270 pub fn inlay_hints_enabled(&self) -> bool {
4271 self.inlay_hint_cache.enabled
4272 }
4273
4274 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4275 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4276 return;
4277 }
4278
4279 let reason_description = reason.description();
4280 let ignore_debounce = matches!(
4281 reason,
4282 InlayHintRefreshReason::SettingsChange(_)
4283 | InlayHintRefreshReason::Toggle(_)
4284 | InlayHintRefreshReason::ExcerptsRemoved(_)
4285 );
4286 let (invalidate_cache, required_languages) = match reason {
4287 InlayHintRefreshReason::Toggle(enabled) => {
4288 self.inlay_hint_cache.enabled = enabled;
4289 if enabled {
4290 (InvalidationStrategy::RefreshRequested, None)
4291 } else {
4292 self.inlay_hint_cache.clear();
4293 self.splice_inlays(
4294 self.visible_inlay_hints(cx)
4295 .iter()
4296 .map(|inlay| inlay.id)
4297 .collect(),
4298 Vec::new(),
4299 cx,
4300 );
4301 return;
4302 }
4303 }
4304 InlayHintRefreshReason::SettingsChange(new_settings) => {
4305 match self.inlay_hint_cache.update_settings(
4306 &self.buffer,
4307 new_settings,
4308 self.visible_inlay_hints(cx),
4309 cx,
4310 ) {
4311 ControlFlow::Break(Some(InlaySplice {
4312 to_remove,
4313 to_insert,
4314 })) => {
4315 self.splice_inlays(to_remove, to_insert, cx);
4316 return;
4317 }
4318 ControlFlow::Break(None) => return,
4319 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4320 }
4321 }
4322 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4323 if let Some(InlaySplice {
4324 to_remove,
4325 to_insert,
4326 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4327 {
4328 self.splice_inlays(to_remove, to_insert, cx);
4329 }
4330 return;
4331 }
4332 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4333 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4334 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4335 }
4336 InlayHintRefreshReason::RefreshRequested => {
4337 (InvalidationStrategy::RefreshRequested, None)
4338 }
4339 };
4340
4341 if let Some(InlaySplice {
4342 to_remove,
4343 to_insert,
4344 }) = self.inlay_hint_cache.spawn_hint_refresh(
4345 reason_description,
4346 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4347 invalidate_cache,
4348 ignore_debounce,
4349 cx,
4350 ) {
4351 self.splice_inlays(to_remove, to_insert, cx);
4352 }
4353 }
4354
4355 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4356 self.display_map
4357 .read(cx)
4358 .current_inlays()
4359 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4360 .cloned()
4361 .collect()
4362 }
4363
4364 pub fn excerpts_for_inlay_hints_query(
4365 &self,
4366 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4367 cx: &mut ViewContext<Editor>,
4368 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4369 let Some(project) = self.project.as_ref() else {
4370 return HashMap::default();
4371 };
4372 let project = project.read(cx);
4373 let multi_buffer = self.buffer().read(cx);
4374 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4375 let multi_buffer_visible_start = self
4376 .scroll_manager
4377 .anchor()
4378 .anchor
4379 .to_point(&multi_buffer_snapshot);
4380 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4381 multi_buffer_visible_start
4382 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4383 Bias::Left,
4384 );
4385 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4386 multi_buffer
4387 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4388 .into_iter()
4389 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4390 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4391 let buffer = buffer_handle.read(cx);
4392 let buffer_file = project::File::from_dyn(buffer.file())?;
4393 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4394 let worktree_entry = buffer_worktree
4395 .read(cx)
4396 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4397 if worktree_entry.is_ignored {
4398 return None;
4399 }
4400
4401 let language = buffer.language()?;
4402 if let Some(restrict_to_languages) = restrict_to_languages {
4403 if !restrict_to_languages.contains(language) {
4404 return None;
4405 }
4406 }
4407 Some((
4408 excerpt_id,
4409 (
4410 buffer_handle,
4411 buffer.version().clone(),
4412 excerpt_visible_range,
4413 ),
4414 ))
4415 })
4416 .collect()
4417 }
4418
4419 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4420 TextLayoutDetails {
4421 text_system: cx.text_system().clone(),
4422 editor_style: self.style.clone().unwrap(),
4423 rem_size: cx.rem_size(),
4424 scroll_anchor: self.scroll_manager.anchor(),
4425 visible_rows: self.visible_line_count(),
4426 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4427 }
4428 }
4429
4430 fn splice_inlays(
4431 &self,
4432 to_remove: Vec<InlayId>,
4433 to_insert: Vec<Inlay>,
4434 cx: &mut ViewContext<Self>,
4435 ) {
4436 self.display_map.update(cx, |display_map, cx| {
4437 display_map.splice_inlays(to_remove, to_insert, cx);
4438 });
4439 cx.notify();
4440 }
4441
4442 fn trigger_on_type_formatting(
4443 &self,
4444 input: String,
4445 cx: &mut ViewContext<Self>,
4446 ) -> Option<Task<Result<()>>> {
4447 if input.len() != 1 {
4448 return None;
4449 }
4450
4451 let project = self.project.as_ref()?;
4452 let position = self.selections.newest_anchor().head();
4453 let (buffer, buffer_position) = self
4454 .buffer
4455 .read(cx)
4456 .text_anchor_for_position(position, cx)?;
4457
4458 let settings = language_settings::language_settings(
4459 buffer
4460 .read(cx)
4461 .language_at(buffer_position)
4462 .map(|l| l.name()),
4463 buffer.read(cx).file(),
4464 cx,
4465 );
4466 if !settings.use_on_type_format {
4467 return None;
4468 }
4469
4470 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4471 // hence we do LSP request & edit on host side only — add formats to host's history.
4472 let push_to_lsp_host_history = true;
4473 // If this is not the host, append its history with new edits.
4474 let push_to_client_history = project.read(cx).is_via_collab();
4475
4476 let on_type_formatting = project.update(cx, |project, cx| {
4477 project.on_type_format(
4478 buffer.clone(),
4479 buffer_position,
4480 input,
4481 push_to_lsp_host_history,
4482 cx,
4483 )
4484 });
4485 Some(cx.spawn(|editor, mut cx| async move {
4486 if let Some(transaction) = on_type_formatting.await? {
4487 if push_to_client_history {
4488 buffer
4489 .update(&mut cx, |buffer, _| {
4490 buffer.push_transaction(transaction, Instant::now());
4491 })
4492 .ok();
4493 }
4494 editor.update(&mut cx, |editor, cx| {
4495 editor.refresh_document_highlights(cx);
4496 })?;
4497 }
4498 Ok(())
4499 }))
4500 }
4501
4502 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4503 if self.pending_rename.is_some() {
4504 return;
4505 }
4506
4507 let Some(provider) = self.completion_provider.as_ref() else {
4508 return;
4509 };
4510
4511 if !self.snippet_stack.is_empty() && self.context_menu.read().as_ref().is_some() {
4512 return;
4513 }
4514
4515 let position = self.selections.newest_anchor().head();
4516 let (buffer, buffer_position) =
4517 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4518 output
4519 } else {
4520 return;
4521 };
4522
4523 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4524 let is_followup_invoke = {
4525 let context_menu_state = self.context_menu.read();
4526 matches!(
4527 context_menu_state.deref(),
4528 Some(ContextMenu::Completions(_))
4529 )
4530 };
4531 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4532 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4533 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4534 CompletionTriggerKind::TRIGGER_CHARACTER
4535 }
4536
4537 _ => CompletionTriggerKind::INVOKED,
4538 };
4539 let completion_context = CompletionContext {
4540 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4541 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4542 Some(String::from(trigger))
4543 } else {
4544 None
4545 }
4546 }),
4547 trigger_kind,
4548 };
4549 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4550 let sort_completions = provider.sort_completions();
4551
4552 let id = post_inc(&mut self.next_completion_id);
4553 let task = cx.spawn(|this, mut cx| {
4554 async move {
4555 this.update(&mut cx, |this, _| {
4556 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4557 })?;
4558 let completions = completions.await.log_err();
4559 let menu = if let Some(completions) = completions {
4560 let mut menu = CompletionsMenu::new(
4561 id,
4562 sort_completions,
4563 position,
4564 buffer.clone(),
4565 completions.into(),
4566 );
4567 menu.filter(query.as_deref(), cx.background_executor().clone())
4568 .await;
4569
4570 if menu.matches.is_empty() {
4571 None
4572 } else {
4573 this.update(&mut cx, |editor, cx| {
4574 let completions = menu.completions.clone();
4575 let matches = menu.matches.clone();
4576
4577 let delay_ms = EditorSettings::get_global(cx)
4578 .completion_documentation_secondary_query_debounce;
4579 let delay = Duration::from_millis(delay_ms);
4580 editor
4581 .completion_documentation_pre_resolve_debounce
4582 .fire_new(delay, cx, |editor, cx| {
4583 CompletionsMenu::pre_resolve_completion_documentation(
4584 buffer,
4585 completions,
4586 matches,
4587 editor,
4588 cx,
4589 )
4590 });
4591 })
4592 .ok();
4593 Some(menu)
4594 }
4595 } else {
4596 None
4597 };
4598
4599 this.update(&mut cx, |this, cx| {
4600 let mut context_menu = this.context_menu.write();
4601 match context_menu.as_ref() {
4602 None => {}
4603
4604 Some(ContextMenu::Completions(prev_menu)) => {
4605 if prev_menu.id > id {
4606 return;
4607 }
4608 }
4609
4610 _ => return,
4611 }
4612
4613 if this.focus_handle.is_focused(cx) && menu.is_some() {
4614 let menu = menu.unwrap();
4615 *context_menu = Some(ContextMenu::Completions(menu));
4616 drop(context_menu);
4617 this.discard_inline_completion(false, cx);
4618 cx.notify();
4619 } else if this.completion_tasks.len() <= 1 {
4620 // If there are no more completion tasks and the last menu was
4621 // empty, we should hide it. If it was already hidden, we should
4622 // also show the copilot completion when available.
4623 drop(context_menu);
4624 if this.hide_context_menu(cx).is_none() {
4625 this.update_visible_inline_completion(cx);
4626 }
4627 }
4628 })?;
4629
4630 Ok::<_, anyhow::Error>(())
4631 }
4632 .log_err()
4633 });
4634
4635 self.completion_tasks.push((id, task));
4636 }
4637
4638 pub fn confirm_completion(
4639 &mut self,
4640 action: &ConfirmCompletion,
4641 cx: &mut ViewContext<Self>,
4642 ) -> Option<Task<Result<()>>> {
4643 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4644 }
4645
4646 pub fn compose_completion(
4647 &mut self,
4648 action: &ComposeCompletion,
4649 cx: &mut ViewContext<Self>,
4650 ) -> Option<Task<Result<()>>> {
4651 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4652 }
4653
4654 fn do_completion(
4655 &mut self,
4656 item_ix: Option<usize>,
4657 intent: CompletionIntent,
4658 cx: &mut ViewContext<Editor>,
4659 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4660 use language::ToOffset as _;
4661
4662 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4663 menu
4664 } else {
4665 return None;
4666 };
4667
4668 let mat = completions_menu
4669 .matches
4670 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4671 let buffer_handle = completions_menu.buffer;
4672 let completions = completions_menu.completions.read();
4673 let completion = completions.get(mat.candidate_id)?;
4674 cx.stop_propagation();
4675
4676 let snippet;
4677 let text;
4678
4679 if completion.is_snippet() {
4680 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4681 text = snippet.as_ref().unwrap().text.clone();
4682 } else {
4683 snippet = None;
4684 text = completion.new_text.clone();
4685 };
4686 let selections = self.selections.all::<usize>(cx);
4687 let buffer = buffer_handle.read(cx);
4688 let old_range = completion.old_range.to_offset(buffer);
4689 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4690
4691 let newest_selection = self.selections.newest_anchor();
4692 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4693 return None;
4694 }
4695
4696 let lookbehind = newest_selection
4697 .start
4698 .text_anchor
4699 .to_offset(buffer)
4700 .saturating_sub(old_range.start);
4701 let lookahead = old_range
4702 .end
4703 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4704 let mut common_prefix_len = old_text
4705 .bytes()
4706 .zip(text.bytes())
4707 .take_while(|(a, b)| a == b)
4708 .count();
4709
4710 let snapshot = self.buffer.read(cx).snapshot(cx);
4711 let mut range_to_replace: Option<Range<isize>> = None;
4712 let mut ranges = Vec::new();
4713 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4714 for selection in &selections {
4715 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4716 let start = selection.start.saturating_sub(lookbehind);
4717 let end = selection.end + lookahead;
4718 if selection.id == newest_selection.id {
4719 range_to_replace = Some(
4720 ((start + common_prefix_len) as isize - selection.start as isize)
4721 ..(end as isize - selection.start as isize),
4722 );
4723 }
4724 ranges.push(start + common_prefix_len..end);
4725 } else {
4726 common_prefix_len = 0;
4727 ranges.clear();
4728 ranges.extend(selections.iter().map(|s| {
4729 if s.id == newest_selection.id {
4730 range_to_replace = Some(
4731 old_range.start.to_offset_utf16(&snapshot).0 as isize
4732 - selection.start as isize
4733 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4734 - selection.start as isize,
4735 );
4736 old_range.clone()
4737 } else {
4738 s.start..s.end
4739 }
4740 }));
4741 break;
4742 }
4743 if !self.linked_edit_ranges.is_empty() {
4744 let start_anchor = snapshot.anchor_before(selection.head());
4745 let end_anchor = snapshot.anchor_after(selection.tail());
4746 if let Some(ranges) = self
4747 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4748 {
4749 for (buffer, edits) in ranges {
4750 linked_edits.entry(buffer.clone()).or_default().extend(
4751 edits
4752 .into_iter()
4753 .map(|range| (range, text[common_prefix_len..].to_owned())),
4754 );
4755 }
4756 }
4757 }
4758 }
4759 let text = &text[common_prefix_len..];
4760
4761 cx.emit(EditorEvent::InputHandled {
4762 utf16_range_to_replace: range_to_replace,
4763 text: text.into(),
4764 });
4765
4766 self.transact(cx, |this, cx| {
4767 if let Some(mut snippet) = snippet {
4768 snippet.text = text.to_string();
4769 for tabstop in snippet
4770 .tabstops
4771 .iter_mut()
4772 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4773 {
4774 tabstop.start -= common_prefix_len as isize;
4775 tabstop.end -= common_prefix_len as isize;
4776 }
4777
4778 this.insert_snippet(&ranges, snippet, cx).log_err();
4779 } else {
4780 this.buffer.update(cx, |buffer, cx| {
4781 buffer.edit(
4782 ranges.iter().map(|range| (range.clone(), text)),
4783 this.autoindent_mode.clone(),
4784 cx,
4785 );
4786 });
4787 }
4788 for (buffer, edits) in linked_edits {
4789 buffer.update(cx, |buffer, cx| {
4790 let snapshot = buffer.snapshot();
4791 let edits = edits
4792 .into_iter()
4793 .map(|(range, text)| {
4794 use text::ToPoint as TP;
4795 let end_point = TP::to_point(&range.end, &snapshot);
4796 let start_point = TP::to_point(&range.start, &snapshot);
4797 (start_point..end_point, text)
4798 })
4799 .sorted_by_key(|(range, _)| range.start)
4800 .collect::<Vec<_>>();
4801 buffer.edit(edits, None, cx);
4802 })
4803 }
4804
4805 this.refresh_inline_completion(true, false, cx);
4806 });
4807
4808 let show_new_completions_on_confirm = completion
4809 .confirm
4810 .as_ref()
4811 .map_or(false, |confirm| confirm(intent, cx));
4812 if show_new_completions_on_confirm {
4813 self.show_completions(&ShowCompletions { trigger: None }, cx);
4814 }
4815
4816 let provider = self.completion_provider.as_ref()?;
4817 let apply_edits = provider.apply_additional_edits_for_completion(
4818 buffer_handle,
4819 completion.clone(),
4820 true,
4821 cx,
4822 );
4823
4824 let editor_settings = EditorSettings::get_global(cx);
4825 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4826 // After the code completion is finished, users often want to know what signatures are needed.
4827 // so we should automatically call signature_help
4828 self.show_signature_help(&ShowSignatureHelp, cx);
4829 }
4830
4831 Some(cx.foreground_executor().spawn(async move {
4832 apply_edits.await?;
4833 Ok(())
4834 }))
4835 }
4836
4837 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4838 let mut context_menu = self.context_menu.write();
4839 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4840 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4841 // Toggle if we're selecting the same one
4842 *context_menu = None;
4843 cx.notify();
4844 return;
4845 } else {
4846 // Otherwise, clear it and start a new one
4847 *context_menu = None;
4848 cx.notify();
4849 }
4850 }
4851 drop(context_menu);
4852 let snapshot = self.snapshot(cx);
4853 let deployed_from_indicator = action.deployed_from_indicator;
4854 let mut task = self.code_actions_task.take();
4855 let action = action.clone();
4856 cx.spawn(|editor, mut cx| async move {
4857 while let Some(prev_task) = task {
4858 prev_task.await.log_err();
4859 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4860 }
4861
4862 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4863 if editor.focus_handle.is_focused(cx) {
4864 let multibuffer_point = action
4865 .deployed_from_indicator
4866 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4867 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4868 let (buffer, buffer_row) = snapshot
4869 .buffer_snapshot
4870 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4871 .and_then(|(buffer_snapshot, range)| {
4872 editor
4873 .buffer
4874 .read(cx)
4875 .buffer(buffer_snapshot.remote_id())
4876 .map(|buffer| (buffer, range.start.row))
4877 })?;
4878 let (_, code_actions) = editor
4879 .available_code_actions
4880 .clone()
4881 .and_then(|(location, code_actions)| {
4882 let snapshot = location.buffer.read(cx).snapshot();
4883 let point_range = location.range.to_point(&snapshot);
4884 let point_range = point_range.start.row..=point_range.end.row;
4885 if point_range.contains(&buffer_row) {
4886 Some((location, code_actions))
4887 } else {
4888 None
4889 }
4890 })
4891 .unzip();
4892 let buffer_id = buffer.read(cx).remote_id();
4893 let tasks = editor
4894 .tasks
4895 .get(&(buffer_id, buffer_row))
4896 .map(|t| Arc::new(t.to_owned()));
4897 if tasks.is_none() && code_actions.is_none() {
4898 return None;
4899 }
4900
4901 editor.completion_tasks.clear();
4902 editor.discard_inline_completion(false, cx);
4903 let task_context =
4904 tasks
4905 .as_ref()
4906 .zip(editor.project.clone())
4907 .map(|(tasks, project)| {
4908 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4909 });
4910
4911 Some(cx.spawn(|editor, mut cx| async move {
4912 let task_context = match task_context {
4913 Some(task_context) => task_context.await,
4914 None => None,
4915 };
4916 let resolved_tasks =
4917 tasks.zip(task_context).map(|(tasks, task_context)| {
4918 Arc::new(ResolvedTasks {
4919 templates: tasks.resolve(&task_context).collect(),
4920 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4921 multibuffer_point.row,
4922 tasks.column,
4923 )),
4924 })
4925 });
4926 let spawn_straight_away = resolved_tasks
4927 .as_ref()
4928 .map_or(false, |tasks| tasks.templates.len() == 1)
4929 && code_actions
4930 .as_ref()
4931 .map_or(true, |actions| actions.is_empty());
4932 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4933 *editor.context_menu.write() =
4934 Some(ContextMenu::CodeActions(CodeActionsMenu {
4935 buffer,
4936 actions: CodeActionContents {
4937 tasks: resolved_tasks,
4938 actions: code_actions,
4939 },
4940 selected_item: Default::default(),
4941 scroll_handle: UniformListScrollHandle::default(),
4942 deployed_from_indicator,
4943 }));
4944 if spawn_straight_away {
4945 if let Some(task) = editor.confirm_code_action(
4946 &ConfirmCodeAction { item_ix: Some(0) },
4947 cx,
4948 ) {
4949 cx.notify();
4950 return task;
4951 }
4952 }
4953 cx.notify();
4954 Task::ready(Ok(()))
4955 }) {
4956 task.await
4957 } else {
4958 Ok(())
4959 }
4960 }))
4961 } else {
4962 Some(Task::ready(Ok(())))
4963 }
4964 })?;
4965 if let Some(task) = spawned_test_task {
4966 task.await?;
4967 }
4968
4969 Ok::<_, anyhow::Error>(())
4970 })
4971 .detach_and_log_err(cx);
4972 }
4973
4974 pub fn confirm_code_action(
4975 &mut self,
4976 action: &ConfirmCodeAction,
4977 cx: &mut ViewContext<Self>,
4978 ) -> Option<Task<Result<()>>> {
4979 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4980 menu
4981 } else {
4982 return None;
4983 };
4984 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4985 let action = actions_menu.actions.get(action_ix)?;
4986 let title = action.label();
4987 let buffer = actions_menu.buffer;
4988 let workspace = self.workspace()?;
4989
4990 match action {
4991 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4992 workspace.update(cx, |workspace, cx| {
4993 workspace::tasks::schedule_resolved_task(
4994 workspace,
4995 task_source_kind,
4996 resolved_task,
4997 false,
4998 cx,
4999 );
5000
5001 Some(Task::ready(Ok(())))
5002 })
5003 }
5004 CodeActionsItem::CodeAction {
5005 excerpt_id,
5006 action,
5007 provider,
5008 } => {
5009 let apply_code_action =
5010 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
5011 let workspace = workspace.downgrade();
5012 Some(cx.spawn(|editor, cx| async move {
5013 let project_transaction = apply_code_action.await?;
5014 Self::open_project_transaction(
5015 &editor,
5016 workspace,
5017 project_transaction,
5018 title,
5019 cx,
5020 )
5021 .await
5022 }))
5023 }
5024 }
5025 }
5026
5027 pub async fn open_project_transaction(
5028 this: &WeakView<Editor>,
5029 workspace: WeakView<Workspace>,
5030 transaction: ProjectTransaction,
5031 title: String,
5032 mut cx: AsyncWindowContext,
5033 ) -> Result<()> {
5034 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
5035 cx.update(|cx| {
5036 entries.sort_unstable_by_key(|(buffer, _)| {
5037 buffer.read(cx).file().map(|f| f.path().clone())
5038 });
5039 })?;
5040
5041 // If the project transaction's edits are all contained within this editor, then
5042 // avoid opening a new editor to display them.
5043
5044 if let Some((buffer, transaction)) = entries.first() {
5045 if entries.len() == 1 {
5046 let excerpt = this.update(&mut cx, |editor, cx| {
5047 editor
5048 .buffer()
5049 .read(cx)
5050 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
5051 })?;
5052 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
5053 if excerpted_buffer == *buffer {
5054 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
5055 let excerpt_range = excerpt_range.to_offset(buffer);
5056 buffer
5057 .edited_ranges_for_transaction::<usize>(transaction)
5058 .all(|range| {
5059 excerpt_range.start <= range.start
5060 && excerpt_range.end >= range.end
5061 })
5062 })?;
5063
5064 if all_edits_within_excerpt {
5065 return Ok(());
5066 }
5067 }
5068 }
5069 }
5070 } else {
5071 return Ok(());
5072 }
5073
5074 let mut ranges_to_highlight = Vec::new();
5075 let excerpt_buffer = cx.new_model(|cx| {
5076 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
5077 for (buffer_handle, transaction) in &entries {
5078 let buffer = buffer_handle.read(cx);
5079 ranges_to_highlight.extend(
5080 multibuffer.push_excerpts_with_context_lines(
5081 buffer_handle.clone(),
5082 buffer
5083 .edited_ranges_for_transaction::<usize>(transaction)
5084 .collect(),
5085 DEFAULT_MULTIBUFFER_CONTEXT,
5086 cx,
5087 ),
5088 );
5089 }
5090 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
5091 multibuffer
5092 })?;
5093
5094 workspace.update(&mut cx, |workspace, cx| {
5095 let project = workspace.project().clone();
5096 let editor =
5097 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
5098 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
5099 editor.update(cx, |editor, cx| {
5100 editor.highlight_background::<Self>(
5101 &ranges_to_highlight,
5102 |theme| theme.editor_highlighted_line_background,
5103 cx,
5104 );
5105 });
5106 })?;
5107
5108 Ok(())
5109 }
5110
5111 pub fn clear_code_action_providers(&mut self) {
5112 self.code_action_providers.clear();
5113 self.available_code_actions.take();
5114 }
5115
5116 pub fn push_code_action_provider(
5117 &mut self,
5118 provider: Arc<dyn CodeActionProvider>,
5119 cx: &mut ViewContext<Self>,
5120 ) {
5121 self.code_action_providers.push(provider);
5122 self.refresh_code_actions(cx);
5123 }
5124
5125 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5126 let buffer = self.buffer.read(cx);
5127 let newest_selection = self.selections.newest_anchor().clone();
5128 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
5129 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
5130 if start_buffer != end_buffer {
5131 return None;
5132 }
5133
5134 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
5135 cx.background_executor()
5136 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
5137 .await;
5138
5139 let (providers, tasks) = this.update(&mut cx, |this, cx| {
5140 let providers = this.code_action_providers.clone();
5141 let tasks = this
5142 .code_action_providers
5143 .iter()
5144 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5145 .collect::<Vec<_>>();
5146 (providers, tasks)
5147 })?;
5148
5149 let mut actions = Vec::new();
5150 for (provider, provider_actions) in
5151 providers.into_iter().zip(future::join_all(tasks).await)
5152 {
5153 if let Some(provider_actions) = provider_actions.log_err() {
5154 actions.extend(provider_actions.into_iter().map(|action| {
5155 AvailableCodeAction {
5156 excerpt_id: newest_selection.start.excerpt_id,
5157 action,
5158 provider: provider.clone(),
5159 }
5160 }));
5161 }
5162 }
5163
5164 this.update(&mut cx, |this, cx| {
5165 this.available_code_actions = if actions.is_empty() {
5166 None
5167 } else {
5168 Some((
5169 Location {
5170 buffer: start_buffer,
5171 range: start..end,
5172 },
5173 actions.into(),
5174 ))
5175 };
5176 cx.notify();
5177 })
5178 }));
5179 None
5180 }
5181
5182 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5183 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5184 self.show_git_blame_inline = false;
5185
5186 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5187 cx.background_executor().timer(delay).await;
5188
5189 this.update(&mut cx, |this, cx| {
5190 this.show_git_blame_inline = true;
5191 cx.notify();
5192 })
5193 .log_err();
5194 }));
5195 }
5196 }
5197
5198 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5199 if self.pending_rename.is_some() {
5200 return None;
5201 }
5202
5203 let provider = self.semantics_provider.clone()?;
5204 let buffer = self.buffer.read(cx);
5205 let newest_selection = self.selections.newest_anchor().clone();
5206 let cursor_position = newest_selection.head();
5207 let (cursor_buffer, cursor_buffer_position) =
5208 buffer.text_anchor_for_position(cursor_position, cx)?;
5209 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5210 if cursor_buffer != tail_buffer {
5211 return None;
5212 }
5213
5214 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5215 cx.background_executor()
5216 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5217 .await;
5218
5219 let highlights = if let Some(highlights) = cx
5220 .update(|cx| {
5221 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5222 })
5223 .ok()
5224 .flatten()
5225 {
5226 highlights.await.log_err()
5227 } else {
5228 None
5229 };
5230
5231 if let Some(highlights) = highlights {
5232 this.update(&mut cx, |this, cx| {
5233 if this.pending_rename.is_some() {
5234 return;
5235 }
5236
5237 let buffer_id = cursor_position.buffer_id;
5238 let buffer = this.buffer.read(cx);
5239 if !buffer
5240 .text_anchor_for_position(cursor_position, cx)
5241 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5242 {
5243 return;
5244 }
5245
5246 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5247 let mut write_ranges = Vec::new();
5248 let mut read_ranges = Vec::new();
5249 for highlight in highlights {
5250 for (excerpt_id, excerpt_range) in
5251 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5252 {
5253 let start = highlight
5254 .range
5255 .start
5256 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5257 let end = highlight
5258 .range
5259 .end
5260 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5261 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5262 continue;
5263 }
5264
5265 let range = Anchor {
5266 buffer_id,
5267 excerpt_id,
5268 text_anchor: start,
5269 }..Anchor {
5270 buffer_id,
5271 excerpt_id,
5272 text_anchor: end,
5273 };
5274 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5275 write_ranges.push(range);
5276 } else {
5277 read_ranges.push(range);
5278 }
5279 }
5280 }
5281
5282 this.highlight_background::<DocumentHighlightRead>(
5283 &read_ranges,
5284 |theme| theme.editor_document_highlight_read_background,
5285 cx,
5286 );
5287 this.highlight_background::<DocumentHighlightWrite>(
5288 &write_ranges,
5289 |theme| theme.editor_document_highlight_write_background,
5290 cx,
5291 );
5292 cx.notify();
5293 })
5294 .log_err();
5295 }
5296 }));
5297 None
5298 }
5299
5300 pub fn refresh_inline_completion(
5301 &mut self,
5302 debounce: bool,
5303 user_requested: bool,
5304 cx: &mut ViewContext<Self>,
5305 ) -> Option<()> {
5306 let provider = self.inline_completion_provider()?;
5307 let cursor = self.selections.newest_anchor().head();
5308 let (buffer, cursor_buffer_position) =
5309 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5310
5311 if !user_requested
5312 && (!self.enable_inline_completions
5313 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5314 {
5315 self.discard_inline_completion(false, cx);
5316 return None;
5317 }
5318
5319 self.update_visible_inline_completion(cx);
5320 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5321 Some(())
5322 }
5323
5324 fn cycle_inline_completion(
5325 &mut self,
5326 direction: Direction,
5327 cx: &mut ViewContext<Self>,
5328 ) -> Option<()> {
5329 let provider = self.inline_completion_provider()?;
5330 let cursor = self.selections.newest_anchor().head();
5331 let (buffer, cursor_buffer_position) =
5332 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5333 if !self.enable_inline_completions
5334 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5335 {
5336 return None;
5337 }
5338
5339 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5340 self.update_visible_inline_completion(cx);
5341
5342 Some(())
5343 }
5344
5345 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5346 if !self.has_active_inline_completion(cx) {
5347 self.refresh_inline_completion(false, true, cx);
5348 return;
5349 }
5350
5351 self.update_visible_inline_completion(cx);
5352 }
5353
5354 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5355 self.show_cursor_names(cx);
5356 }
5357
5358 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5359 self.show_cursor_names = true;
5360 cx.notify();
5361 cx.spawn(|this, mut cx| async move {
5362 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5363 this.update(&mut cx, |this, cx| {
5364 this.show_cursor_names = false;
5365 cx.notify()
5366 })
5367 .ok()
5368 })
5369 .detach();
5370 }
5371
5372 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5373 if self.has_active_inline_completion(cx) {
5374 self.cycle_inline_completion(Direction::Next, cx);
5375 } else {
5376 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5377 if is_copilot_disabled {
5378 cx.propagate();
5379 }
5380 }
5381 }
5382
5383 pub fn previous_inline_completion(
5384 &mut self,
5385 _: &PreviousInlineCompletion,
5386 cx: &mut ViewContext<Self>,
5387 ) {
5388 if self.has_active_inline_completion(cx) {
5389 self.cycle_inline_completion(Direction::Prev, cx);
5390 } else {
5391 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5392 if is_copilot_disabled {
5393 cx.propagate();
5394 }
5395 }
5396 }
5397
5398 pub fn accept_inline_completion(
5399 &mut self,
5400 _: &AcceptInlineCompletion,
5401 cx: &mut ViewContext<Self>,
5402 ) {
5403 let Some(completion) = self.take_active_inline_completion(cx) else {
5404 return;
5405 };
5406 if let Some(provider) = self.inline_completion_provider() {
5407 provider.accept(cx);
5408 }
5409
5410 cx.emit(EditorEvent::InputHandled {
5411 utf16_range_to_replace: None,
5412 text: completion.text.to_string().into(),
5413 });
5414
5415 if let Some(range) = completion.delete_range {
5416 self.change_selections(None, cx, |s| s.select_ranges([range]))
5417 }
5418 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5419 self.refresh_inline_completion(true, true, cx);
5420 cx.notify();
5421 }
5422
5423 pub fn accept_partial_inline_completion(
5424 &mut self,
5425 _: &AcceptPartialInlineCompletion,
5426 cx: &mut ViewContext<Self>,
5427 ) {
5428 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5429 if let Some(completion) = self.take_active_inline_completion(cx) {
5430 let mut partial_completion = completion
5431 .text
5432 .chars()
5433 .by_ref()
5434 .take_while(|c| c.is_alphabetic())
5435 .collect::<String>();
5436 if partial_completion.is_empty() {
5437 partial_completion = completion
5438 .text
5439 .chars()
5440 .by_ref()
5441 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5442 .collect::<String>();
5443 }
5444
5445 cx.emit(EditorEvent::InputHandled {
5446 utf16_range_to_replace: None,
5447 text: partial_completion.clone().into(),
5448 });
5449
5450 if let Some(range) = completion.delete_range {
5451 self.change_selections(None, cx, |s| s.select_ranges([range]))
5452 }
5453 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5454
5455 self.refresh_inline_completion(true, true, cx);
5456 cx.notify();
5457 }
5458 }
5459 }
5460
5461 fn discard_inline_completion(
5462 &mut self,
5463 should_report_inline_completion_event: bool,
5464 cx: &mut ViewContext<Self>,
5465 ) -> bool {
5466 if let Some(provider) = self.inline_completion_provider() {
5467 provider.discard(should_report_inline_completion_event, cx);
5468 }
5469
5470 self.take_active_inline_completion(cx).is_some()
5471 }
5472
5473 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5474 if let Some(completion) = self.active_inline_completion.as_ref() {
5475 let buffer = self.buffer.read(cx).read(cx);
5476 completion.position.is_valid(&buffer)
5477 } else {
5478 false
5479 }
5480 }
5481
5482 fn take_active_inline_completion(
5483 &mut self,
5484 cx: &mut ViewContext<Self>,
5485 ) -> Option<CompletionState> {
5486 let completion = self.active_inline_completion.take()?;
5487 let render_inlay_ids = completion.render_inlay_ids.clone();
5488 self.display_map.update(cx, |map, cx| {
5489 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5490 });
5491 let buffer = self.buffer.read(cx).read(cx);
5492
5493 if completion.position.is_valid(&buffer) {
5494 Some(completion)
5495 } else {
5496 None
5497 }
5498 }
5499
5500 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5501 let selection = self.selections.newest_anchor();
5502 let cursor = selection.head();
5503
5504 let excerpt_id = cursor.excerpt_id;
5505
5506 if self.context_menu.read().is_none()
5507 && self.completion_tasks.is_empty()
5508 && selection.start == selection.end
5509 {
5510 if let Some(provider) = self.inline_completion_provider() {
5511 if let Some((buffer, cursor_buffer_position)) =
5512 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5513 {
5514 if let Some(proposal) =
5515 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5516 {
5517 let mut to_remove = Vec::new();
5518 if let Some(completion) = self.active_inline_completion.take() {
5519 to_remove.extend(completion.render_inlay_ids.iter());
5520 }
5521
5522 let to_add = proposal
5523 .inlays
5524 .iter()
5525 .filter_map(|inlay| {
5526 let snapshot = self.buffer.read(cx).snapshot(cx);
5527 let id = post_inc(&mut self.next_inlay_id);
5528 match inlay {
5529 InlayProposal::Hint(position, hint) => {
5530 let position =
5531 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5532 Some(Inlay::hint(id, position, hint))
5533 }
5534 InlayProposal::Suggestion(position, text) => {
5535 let position =
5536 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5537 Some(Inlay::suggestion(id, position, text.clone()))
5538 }
5539 }
5540 })
5541 .collect_vec();
5542
5543 self.active_inline_completion = Some(CompletionState {
5544 position: cursor,
5545 text: proposal.text,
5546 delete_range: proposal.delete_range.and_then(|range| {
5547 let snapshot = self.buffer.read(cx).snapshot(cx);
5548 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5549 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5550 Some(start?..end?)
5551 }),
5552 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5553 });
5554
5555 self.display_map
5556 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5557
5558 cx.notify();
5559 return;
5560 }
5561 }
5562 }
5563 }
5564
5565 self.discard_inline_completion(false, cx);
5566 }
5567
5568 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5569 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5570 }
5571
5572 fn render_code_actions_indicator(
5573 &self,
5574 _style: &EditorStyle,
5575 row: DisplayRow,
5576 is_active: bool,
5577 cx: &mut ViewContext<Self>,
5578 ) -> Option<IconButton> {
5579 if self.available_code_actions.is_some() {
5580 Some(
5581 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5582 .shape(ui::IconButtonShape::Square)
5583 .icon_size(IconSize::XSmall)
5584 .icon_color(Color::Muted)
5585 .selected(is_active)
5586 .tooltip({
5587 let focus_handle = self.focus_handle.clone();
5588 move |cx| {
5589 Tooltip::for_action_in(
5590 "Toggle Code Actions",
5591 &ToggleCodeActions {
5592 deployed_from_indicator: None,
5593 },
5594 &focus_handle,
5595 cx,
5596 )
5597 }
5598 })
5599 .on_click(cx.listener(move |editor, _e, cx| {
5600 editor.focus(cx);
5601 editor.toggle_code_actions(
5602 &ToggleCodeActions {
5603 deployed_from_indicator: Some(row),
5604 },
5605 cx,
5606 );
5607 })),
5608 )
5609 } else {
5610 None
5611 }
5612 }
5613
5614 fn clear_tasks(&mut self) {
5615 self.tasks.clear()
5616 }
5617
5618 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5619 if self.tasks.insert(key, value).is_some() {
5620 // This case should hopefully be rare, but just in case...
5621 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5622 }
5623 }
5624
5625 fn build_tasks_context(
5626 project: &Model<Project>,
5627 buffer: &Model<Buffer>,
5628 buffer_row: u32,
5629 tasks: &Arc<RunnableTasks>,
5630 cx: &mut ViewContext<Self>,
5631 ) -> Task<Option<task::TaskContext>> {
5632 let position = Point::new(buffer_row, tasks.column);
5633 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5634 let location = Location {
5635 buffer: buffer.clone(),
5636 range: range_start..range_start,
5637 };
5638 // Fill in the environmental variables from the tree-sitter captures
5639 let mut captured_task_variables = TaskVariables::default();
5640 for (capture_name, value) in tasks.extra_variables.clone() {
5641 captured_task_variables.insert(
5642 task::VariableName::Custom(capture_name.into()),
5643 value.clone(),
5644 );
5645 }
5646 project.update(cx, |project, cx| {
5647 project.task_store().update(cx, |task_store, cx| {
5648 task_store.task_context_for_location(captured_task_variables, location, cx)
5649 })
5650 })
5651 }
5652
5653 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5654 let Some((workspace, _)) = self.workspace.clone() else {
5655 return;
5656 };
5657 let Some(project) = self.project.clone() else {
5658 return;
5659 };
5660
5661 // Try to find a closest, enclosing node using tree-sitter that has a
5662 // task
5663 let Some((buffer, buffer_row, tasks)) = self
5664 .find_enclosing_node_task(cx)
5665 // Or find the task that's closest in row-distance.
5666 .or_else(|| self.find_closest_task(cx))
5667 else {
5668 return;
5669 };
5670
5671 let reveal_strategy = action.reveal;
5672 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5673 cx.spawn(|_, mut cx| async move {
5674 let context = task_context.await?;
5675 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5676
5677 let resolved = resolved_task.resolved.as_mut()?;
5678 resolved.reveal = reveal_strategy;
5679
5680 workspace
5681 .update(&mut cx, |workspace, cx| {
5682 workspace::tasks::schedule_resolved_task(
5683 workspace,
5684 task_source_kind,
5685 resolved_task,
5686 false,
5687 cx,
5688 );
5689 })
5690 .ok()
5691 })
5692 .detach();
5693 }
5694
5695 fn find_closest_task(
5696 &mut self,
5697 cx: &mut ViewContext<Self>,
5698 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5699 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5700
5701 let ((buffer_id, row), tasks) = self
5702 .tasks
5703 .iter()
5704 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5705
5706 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5707 let tasks = Arc::new(tasks.to_owned());
5708 Some((buffer, *row, tasks))
5709 }
5710
5711 fn find_enclosing_node_task(
5712 &mut self,
5713 cx: &mut ViewContext<Self>,
5714 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5715 let snapshot = self.buffer.read(cx).snapshot(cx);
5716 let offset = self.selections.newest::<usize>(cx).head();
5717 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5718 let buffer_id = excerpt.buffer().remote_id();
5719
5720 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5721 let mut cursor = layer.node().walk();
5722
5723 while cursor.goto_first_child_for_byte(offset).is_some() {
5724 if cursor.node().end_byte() == offset {
5725 cursor.goto_next_sibling();
5726 }
5727 }
5728
5729 // Ascend to the smallest ancestor that contains the range and has a task.
5730 loop {
5731 let node = cursor.node();
5732 let node_range = node.byte_range();
5733 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5734
5735 // Check if this node contains our offset
5736 if node_range.start <= offset && node_range.end >= offset {
5737 // If it contains offset, check for task
5738 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5739 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5740 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5741 }
5742 }
5743
5744 if !cursor.goto_parent() {
5745 break;
5746 }
5747 }
5748 None
5749 }
5750
5751 fn render_run_indicator(
5752 &self,
5753 _style: &EditorStyle,
5754 is_active: bool,
5755 row: DisplayRow,
5756 cx: &mut ViewContext<Self>,
5757 ) -> IconButton {
5758 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5759 .shape(ui::IconButtonShape::Square)
5760 .icon_size(IconSize::XSmall)
5761 .icon_color(Color::Muted)
5762 .selected(is_active)
5763 .on_click(cx.listener(move |editor, _e, cx| {
5764 editor.focus(cx);
5765 editor.toggle_code_actions(
5766 &ToggleCodeActions {
5767 deployed_from_indicator: Some(row),
5768 },
5769 cx,
5770 );
5771 }))
5772 }
5773
5774 pub fn context_menu_visible(&self) -> bool {
5775 self.context_menu
5776 .read()
5777 .as_ref()
5778 .map_or(false, |menu| menu.visible())
5779 }
5780
5781 fn render_context_menu(
5782 &self,
5783 cursor_position: DisplayPoint,
5784 style: &EditorStyle,
5785 max_height: Pixels,
5786 cx: &mut ViewContext<Editor>,
5787 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5788 self.context_menu.read().as_ref().map(|menu| {
5789 menu.render(
5790 cursor_position,
5791 style,
5792 max_height,
5793 self.workspace.as_ref().map(|(w, _)| w.clone()),
5794 cx,
5795 )
5796 })
5797 }
5798
5799 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5800 cx.notify();
5801 self.completion_tasks.clear();
5802 let context_menu = self.context_menu.write().take();
5803 if context_menu.is_some() {
5804 self.update_visible_inline_completion(cx);
5805 }
5806 context_menu
5807 }
5808
5809 fn show_snippet_choices(
5810 &mut self,
5811 choices: &Vec<String>,
5812 selection: Range<Anchor>,
5813 cx: &mut ViewContext<Self>,
5814 ) {
5815 if selection.start.buffer_id.is_none() {
5816 return;
5817 }
5818 let buffer_id = selection.start.buffer_id.unwrap();
5819 let buffer = self.buffer().read(cx).buffer(buffer_id);
5820 let id = post_inc(&mut self.next_completion_id);
5821
5822 if let Some(buffer) = buffer {
5823 *self.context_menu.write() = Some(ContextMenu::Completions(
5824 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer)
5825 .suppress_documentation_resolution(),
5826 ));
5827 }
5828 }
5829
5830 pub fn insert_snippet(
5831 &mut self,
5832 insertion_ranges: &[Range<usize>],
5833 snippet: Snippet,
5834 cx: &mut ViewContext<Self>,
5835 ) -> Result<()> {
5836 struct Tabstop<T> {
5837 is_end_tabstop: bool,
5838 ranges: Vec<Range<T>>,
5839 choices: Option<Vec<String>>,
5840 }
5841
5842 let tabstops = self.buffer.update(cx, |buffer, cx| {
5843 let snippet_text: Arc<str> = snippet.text.clone().into();
5844 buffer.edit(
5845 insertion_ranges
5846 .iter()
5847 .cloned()
5848 .map(|range| (range, snippet_text.clone())),
5849 Some(AutoindentMode::EachLine),
5850 cx,
5851 );
5852
5853 let snapshot = &*buffer.read(cx);
5854 let snippet = &snippet;
5855 snippet
5856 .tabstops
5857 .iter()
5858 .map(|tabstop| {
5859 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5860 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5861 });
5862 let mut tabstop_ranges = tabstop
5863 .ranges
5864 .iter()
5865 .flat_map(|tabstop_range| {
5866 let mut delta = 0_isize;
5867 insertion_ranges.iter().map(move |insertion_range| {
5868 let insertion_start = insertion_range.start as isize + delta;
5869 delta +=
5870 snippet.text.len() as isize - insertion_range.len() as isize;
5871
5872 let start = ((insertion_start + tabstop_range.start) as usize)
5873 .min(snapshot.len());
5874 let end = ((insertion_start + tabstop_range.end) as usize)
5875 .min(snapshot.len());
5876 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5877 })
5878 })
5879 .collect::<Vec<_>>();
5880 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5881
5882 Tabstop {
5883 is_end_tabstop,
5884 ranges: tabstop_ranges,
5885 choices: tabstop.choices.clone(),
5886 }
5887 })
5888 .collect::<Vec<_>>()
5889 });
5890 if let Some(tabstop) = tabstops.first() {
5891 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5892 s.select_ranges(tabstop.ranges.iter().cloned());
5893 });
5894
5895 if let Some(choices) = &tabstop.choices {
5896 if let Some(selection) = tabstop.ranges.first() {
5897 self.show_snippet_choices(choices, selection.clone(), cx)
5898 }
5899 }
5900
5901 // If we're already at the last tabstop and it's at the end of the snippet,
5902 // we're done, we don't need to keep the state around.
5903 if !tabstop.is_end_tabstop {
5904 let choices = tabstops
5905 .iter()
5906 .map(|tabstop| tabstop.choices.clone())
5907 .collect();
5908
5909 let ranges = tabstops
5910 .into_iter()
5911 .map(|tabstop| tabstop.ranges)
5912 .collect::<Vec<_>>();
5913
5914 self.snippet_stack.push(SnippetState {
5915 active_index: 0,
5916 ranges,
5917 choices,
5918 });
5919 }
5920
5921 // Check whether the just-entered snippet ends with an auto-closable bracket.
5922 if self.autoclose_regions.is_empty() {
5923 let snapshot = self.buffer.read(cx).snapshot(cx);
5924 for selection in &mut self.selections.all::<Point>(cx) {
5925 let selection_head = selection.head();
5926 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5927 continue;
5928 };
5929
5930 let mut bracket_pair = None;
5931 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5932 let prev_chars = snapshot
5933 .reversed_chars_at(selection_head)
5934 .collect::<String>();
5935 for (pair, enabled) in scope.brackets() {
5936 if enabled
5937 && pair.close
5938 && prev_chars.starts_with(pair.start.as_str())
5939 && next_chars.starts_with(pair.end.as_str())
5940 {
5941 bracket_pair = Some(pair.clone());
5942 break;
5943 }
5944 }
5945 if let Some(pair) = bracket_pair {
5946 let start = snapshot.anchor_after(selection_head);
5947 let end = snapshot.anchor_after(selection_head);
5948 self.autoclose_regions.push(AutocloseRegion {
5949 selection_id: selection.id,
5950 range: start..end,
5951 pair,
5952 });
5953 }
5954 }
5955 }
5956 }
5957 Ok(())
5958 }
5959
5960 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5961 self.move_to_snippet_tabstop(Bias::Right, cx)
5962 }
5963
5964 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5965 self.move_to_snippet_tabstop(Bias::Left, cx)
5966 }
5967
5968 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5969 if let Some(mut snippet) = self.snippet_stack.pop() {
5970 match bias {
5971 Bias::Left => {
5972 if snippet.active_index > 0 {
5973 snippet.active_index -= 1;
5974 } else {
5975 self.snippet_stack.push(snippet);
5976 return false;
5977 }
5978 }
5979 Bias::Right => {
5980 if snippet.active_index + 1 < snippet.ranges.len() {
5981 snippet.active_index += 1;
5982 } else {
5983 self.snippet_stack.push(snippet);
5984 return false;
5985 }
5986 }
5987 }
5988 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5989 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5990 s.select_anchor_ranges(current_ranges.iter().cloned())
5991 });
5992
5993 if let Some(choices) = &snippet.choices[snippet.active_index] {
5994 if let Some(selection) = current_ranges.first() {
5995 self.show_snippet_choices(&choices, selection.clone(), cx);
5996 }
5997 }
5998
5999 // If snippet state is not at the last tabstop, push it back on the stack
6000 if snippet.active_index + 1 < snippet.ranges.len() {
6001 self.snippet_stack.push(snippet);
6002 }
6003 return true;
6004 }
6005 }
6006
6007 false
6008 }
6009
6010 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
6011 self.transact(cx, |this, cx| {
6012 this.select_all(&SelectAll, cx);
6013 this.insert("", cx);
6014 });
6015 }
6016
6017 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
6018 self.transact(cx, |this, cx| {
6019 this.select_autoclose_pair(cx);
6020 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
6021 if !this.linked_edit_ranges.is_empty() {
6022 let selections = this.selections.all::<MultiBufferPoint>(cx);
6023 let snapshot = this.buffer.read(cx).snapshot(cx);
6024
6025 for selection in selections.iter() {
6026 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
6027 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
6028 if selection_start.buffer_id != selection_end.buffer_id {
6029 continue;
6030 }
6031 if let Some(ranges) =
6032 this.linked_editing_ranges_for(selection_start..selection_end, cx)
6033 {
6034 for (buffer, entries) in ranges {
6035 linked_ranges.entry(buffer).or_default().extend(entries);
6036 }
6037 }
6038 }
6039 }
6040
6041 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
6042 if !this.selections.line_mode {
6043 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
6044 for selection in &mut selections {
6045 if selection.is_empty() {
6046 let old_head = selection.head();
6047 let mut new_head =
6048 movement::left(&display_map, old_head.to_display_point(&display_map))
6049 .to_point(&display_map);
6050 if let Some((buffer, line_buffer_range)) = display_map
6051 .buffer_snapshot
6052 .buffer_line_for_row(MultiBufferRow(old_head.row))
6053 {
6054 let indent_size =
6055 buffer.indent_size_for_line(line_buffer_range.start.row);
6056 let indent_len = match indent_size.kind {
6057 IndentKind::Space => {
6058 buffer.settings_at(line_buffer_range.start, cx).tab_size
6059 }
6060 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
6061 };
6062 if old_head.column <= indent_size.len && old_head.column > 0 {
6063 let indent_len = indent_len.get();
6064 new_head = cmp::min(
6065 new_head,
6066 MultiBufferPoint::new(
6067 old_head.row,
6068 ((old_head.column - 1) / indent_len) * indent_len,
6069 ),
6070 );
6071 }
6072 }
6073
6074 selection.set_head(new_head, SelectionGoal::None);
6075 }
6076 }
6077 }
6078
6079 this.signature_help_state.set_backspace_pressed(true);
6080 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6081 this.insert("", cx);
6082 let empty_str: Arc<str> = Arc::from("");
6083 for (buffer, edits) in linked_ranges {
6084 let snapshot = buffer.read(cx).snapshot();
6085 use text::ToPoint as TP;
6086
6087 let edits = edits
6088 .into_iter()
6089 .map(|range| {
6090 let end_point = TP::to_point(&range.end, &snapshot);
6091 let mut start_point = TP::to_point(&range.start, &snapshot);
6092
6093 if end_point == start_point {
6094 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
6095 .saturating_sub(1);
6096 start_point = TP::to_point(&offset, &snapshot);
6097 };
6098
6099 (start_point..end_point, empty_str.clone())
6100 })
6101 .sorted_by_key(|(range, _)| range.start)
6102 .collect::<Vec<_>>();
6103 buffer.update(cx, |this, cx| {
6104 this.edit(edits, None, cx);
6105 })
6106 }
6107 this.refresh_inline_completion(true, false, cx);
6108 linked_editing_ranges::refresh_linked_ranges(this, cx);
6109 });
6110 }
6111
6112 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
6113 self.transact(cx, |this, cx| {
6114 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6115 let line_mode = s.line_mode;
6116 s.move_with(|map, selection| {
6117 if selection.is_empty() && !line_mode {
6118 let cursor = movement::right(map, selection.head());
6119 selection.end = cursor;
6120 selection.reversed = true;
6121 selection.goal = SelectionGoal::None;
6122 }
6123 })
6124 });
6125 this.insert("", cx);
6126 this.refresh_inline_completion(true, false, cx);
6127 });
6128 }
6129
6130 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
6131 if self.move_to_prev_snippet_tabstop(cx) {
6132 return;
6133 }
6134
6135 self.outdent(&Outdent, cx);
6136 }
6137
6138 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
6139 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
6140 return;
6141 }
6142
6143 let mut selections = self.selections.all_adjusted(cx);
6144 let buffer = self.buffer.read(cx);
6145 let snapshot = buffer.snapshot(cx);
6146 let rows_iter = selections.iter().map(|s| s.head().row);
6147 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
6148
6149 let mut edits = Vec::new();
6150 let mut prev_edited_row = 0;
6151 let mut row_delta = 0;
6152 for selection in &mut selections {
6153 if selection.start.row != prev_edited_row {
6154 row_delta = 0;
6155 }
6156 prev_edited_row = selection.end.row;
6157
6158 // If the selection is non-empty, then increase the indentation of the selected lines.
6159 if !selection.is_empty() {
6160 row_delta =
6161 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6162 continue;
6163 }
6164
6165 // If the selection is empty and the cursor is in the leading whitespace before the
6166 // suggested indentation, then auto-indent the line.
6167 let cursor = selection.head();
6168 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6169 if let Some(suggested_indent) =
6170 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6171 {
6172 if cursor.column < suggested_indent.len
6173 && cursor.column <= current_indent.len
6174 && current_indent.len <= suggested_indent.len
6175 {
6176 selection.start = Point::new(cursor.row, suggested_indent.len);
6177 selection.end = selection.start;
6178 if row_delta == 0 {
6179 edits.extend(Buffer::edit_for_indent_size_adjustment(
6180 cursor.row,
6181 current_indent,
6182 suggested_indent,
6183 ));
6184 row_delta = suggested_indent.len - current_indent.len;
6185 }
6186 continue;
6187 }
6188 }
6189
6190 // Otherwise, insert a hard or soft tab.
6191 let settings = buffer.settings_at(cursor, cx);
6192 let tab_size = if settings.hard_tabs {
6193 IndentSize::tab()
6194 } else {
6195 let tab_size = settings.tab_size.get();
6196 let char_column = snapshot
6197 .text_for_range(Point::new(cursor.row, 0)..cursor)
6198 .flat_map(str::chars)
6199 .count()
6200 + row_delta as usize;
6201 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6202 IndentSize::spaces(chars_to_next_tab_stop)
6203 };
6204 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6205 selection.end = selection.start;
6206 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6207 row_delta += tab_size.len;
6208 }
6209
6210 self.transact(cx, |this, cx| {
6211 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6212 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6213 this.refresh_inline_completion(true, false, cx);
6214 });
6215 }
6216
6217 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6218 if self.read_only(cx) {
6219 return;
6220 }
6221 let mut selections = self.selections.all::<Point>(cx);
6222 let mut prev_edited_row = 0;
6223 let mut row_delta = 0;
6224 let mut edits = Vec::new();
6225 let buffer = self.buffer.read(cx);
6226 let snapshot = buffer.snapshot(cx);
6227 for selection in &mut selections {
6228 if selection.start.row != prev_edited_row {
6229 row_delta = 0;
6230 }
6231 prev_edited_row = selection.end.row;
6232
6233 row_delta =
6234 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6235 }
6236
6237 self.transact(cx, |this, cx| {
6238 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6239 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6240 });
6241 }
6242
6243 fn indent_selection(
6244 buffer: &MultiBuffer,
6245 snapshot: &MultiBufferSnapshot,
6246 selection: &mut Selection<Point>,
6247 edits: &mut Vec<(Range<Point>, String)>,
6248 delta_for_start_row: u32,
6249 cx: &AppContext,
6250 ) -> u32 {
6251 let settings = buffer.settings_at(selection.start, cx);
6252 let tab_size = settings.tab_size.get();
6253 let indent_kind = if settings.hard_tabs {
6254 IndentKind::Tab
6255 } else {
6256 IndentKind::Space
6257 };
6258 let mut start_row = selection.start.row;
6259 let mut end_row = selection.end.row + 1;
6260
6261 // If a selection ends at the beginning of a line, don't indent
6262 // that last line.
6263 if selection.end.column == 0 && selection.end.row > selection.start.row {
6264 end_row -= 1;
6265 }
6266
6267 // Avoid re-indenting a row that has already been indented by a
6268 // previous selection, but still update this selection's column
6269 // to reflect that indentation.
6270 if delta_for_start_row > 0 {
6271 start_row += 1;
6272 selection.start.column += delta_for_start_row;
6273 if selection.end.row == selection.start.row {
6274 selection.end.column += delta_for_start_row;
6275 }
6276 }
6277
6278 let mut delta_for_end_row = 0;
6279 let has_multiple_rows = start_row + 1 != end_row;
6280 for row in start_row..end_row {
6281 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6282 let indent_delta = match (current_indent.kind, indent_kind) {
6283 (IndentKind::Space, IndentKind::Space) => {
6284 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6285 IndentSize::spaces(columns_to_next_tab_stop)
6286 }
6287 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6288 (_, IndentKind::Tab) => IndentSize::tab(),
6289 };
6290
6291 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6292 0
6293 } else {
6294 selection.start.column
6295 };
6296 let row_start = Point::new(row, start);
6297 edits.push((
6298 row_start..row_start,
6299 indent_delta.chars().collect::<String>(),
6300 ));
6301
6302 // Update this selection's endpoints to reflect the indentation.
6303 if row == selection.start.row {
6304 selection.start.column += indent_delta.len;
6305 }
6306 if row == selection.end.row {
6307 selection.end.column += indent_delta.len;
6308 delta_for_end_row = indent_delta.len;
6309 }
6310 }
6311
6312 if selection.start.row == selection.end.row {
6313 delta_for_start_row + delta_for_end_row
6314 } else {
6315 delta_for_end_row
6316 }
6317 }
6318
6319 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6320 if self.read_only(cx) {
6321 return;
6322 }
6323 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6324 let selections = self.selections.all::<Point>(cx);
6325 let mut deletion_ranges = Vec::new();
6326 let mut last_outdent = None;
6327 {
6328 let buffer = self.buffer.read(cx);
6329 let snapshot = buffer.snapshot(cx);
6330 for selection in &selections {
6331 let settings = buffer.settings_at(selection.start, cx);
6332 let tab_size = settings.tab_size.get();
6333 let mut rows = selection.spanned_rows(false, &display_map);
6334
6335 // Avoid re-outdenting a row that has already been outdented by a
6336 // previous selection.
6337 if let Some(last_row) = last_outdent {
6338 if last_row == rows.start {
6339 rows.start = rows.start.next_row();
6340 }
6341 }
6342 let has_multiple_rows = rows.len() > 1;
6343 for row in rows.iter_rows() {
6344 let indent_size = snapshot.indent_size_for_line(row);
6345 if indent_size.len > 0 {
6346 let deletion_len = match indent_size.kind {
6347 IndentKind::Space => {
6348 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6349 if columns_to_prev_tab_stop == 0 {
6350 tab_size
6351 } else {
6352 columns_to_prev_tab_stop
6353 }
6354 }
6355 IndentKind::Tab => 1,
6356 };
6357 let start = if has_multiple_rows
6358 || deletion_len > selection.start.column
6359 || indent_size.len < selection.start.column
6360 {
6361 0
6362 } else {
6363 selection.start.column - deletion_len
6364 };
6365 deletion_ranges.push(
6366 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6367 );
6368 last_outdent = Some(row);
6369 }
6370 }
6371 }
6372 }
6373
6374 self.transact(cx, |this, cx| {
6375 this.buffer.update(cx, |buffer, cx| {
6376 let empty_str: Arc<str> = Arc::default();
6377 buffer.edit(
6378 deletion_ranges
6379 .into_iter()
6380 .map(|range| (range, empty_str.clone())),
6381 None,
6382 cx,
6383 );
6384 });
6385 let selections = this.selections.all::<usize>(cx);
6386 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6387 });
6388 }
6389
6390 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6391 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6392 let selections = self.selections.all::<Point>(cx);
6393
6394 let mut new_cursors = Vec::new();
6395 let mut edit_ranges = Vec::new();
6396 let mut selections = selections.iter().peekable();
6397 while let Some(selection) = selections.next() {
6398 let mut rows = selection.spanned_rows(false, &display_map);
6399 let goal_display_column = selection.head().to_display_point(&display_map).column();
6400
6401 // Accumulate contiguous regions of rows that we want to delete.
6402 while let Some(next_selection) = selections.peek() {
6403 let next_rows = next_selection.spanned_rows(false, &display_map);
6404 if next_rows.start <= rows.end {
6405 rows.end = next_rows.end;
6406 selections.next().unwrap();
6407 } else {
6408 break;
6409 }
6410 }
6411
6412 let buffer = &display_map.buffer_snapshot;
6413 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6414 let edit_end;
6415 let cursor_buffer_row;
6416 if buffer.max_point().row >= rows.end.0 {
6417 // If there's a line after the range, delete the \n from the end of the row range
6418 // and position the cursor on the next line.
6419 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6420 cursor_buffer_row = rows.end;
6421 } else {
6422 // If there isn't a line after the range, delete the \n from the line before the
6423 // start of the row range and position the cursor there.
6424 edit_start = edit_start.saturating_sub(1);
6425 edit_end = buffer.len();
6426 cursor_buffer_row = rows.start.previous_row();
6427 }
6428
6429 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6430 *cursor.column_mut() =
6431 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6432
6433 new_cursors.push((
6434 selection.id,
6435 buffer.anchor_after(cursor.to_point(&display_map)),
6436 ));
6437 edit_ranges.push(edit_start..edit_end);
6438 }
6439
6440 self.transact(cx, |this, cx| {
6441 let buffer = this.buffer.update(cx, |buffer, cx| {
6442 let empty_str: Arc<str> = Arc::default();
6443 buffer.edit(
6444 edit_ranges
6445 .into_iter()
6446 .map(|range| (range, empty_str.clone())),
6447 None,
6448 cx,
6449 );
6450 buffer.snapshot(cx)
6451 });
6452 let new_selections = new_cursors
6453 .into_iter()
6454 .map(|(id, cursor)| {
6455 let cursor = cursor.to_point(&buffer);
6456 Selection {
6457 id,
6458 start: cursor,
6459 end: cursor,
6460 reversed: false,
6461 goal: SelectionGoal::None,
6462 }
6463 })
6464 .collect();
6465
6466 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6467 s.select(new_selections);
6468 });
6469 });
6470 }
6471
6472 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6473 if self.read_only(cx) {
6474 return;
6475 }
6476 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6477 for selection in self.selections.all::<Point>(cx) {
6478 let start = MultiBufferRow(selection.start.row);
6479 // Treat single line selections as if they include the next line. Otherwise this action
6480 // would do nothing for single line selections individual cursors.
6481 let end = if selection.start.row == selection.end.row {
6482 MultiBufferRow(selection.start.row + 1)
6483 } else {
6484 MultiBufferRow(selection.end.row)
6485 };
6486
6487 if let Some(last_row_range) = row_ranges.last_mut() {
6488 if start <= last_row_range.end {
6489 last_row_range.end = end;
6490 continue;
6491 }
6492 }
6493 row_ranges.push(start..end);
6494 }
6495
6496 let snapshot = self.buffer.read(cx).snapshot(cx);
6497 let mut cursor_positions = Vec::new();
6498 for row_range in &row_ranges {
6499 let anchor = snapshot.anchor_before(Point::new(
6500 row_range.end.previous_row().0,
6501 snapshot.line_len(row_range.end.previous_row()),
6502 ));
6503 cursor_positions.push(anchor..anchor);
6504 }
6505
6506 self.transact(cx, |this, cx| {
6507 for row_range in row_ranges.into_iter().rev() {
6508 for row in row_range.iter_rows().rev() {
6509 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6510 let next_line_row = row.next_row();
6511 let indent = snapshot.indent_size_for_line(next_line_row);
6512 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6513
6514 let replace = if snapshot.line_len(next_line_row) > indent.len {
6515 " "
6516 } else {
6517 ""
6518 };
6519
6520 this.buffer.update(cx, |buffer, cx| {
6521 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6522 });
6523 }
6524 }
6525
6526 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6527 s.select_anchor_ranges(cursor_positions)
6528 });
6529 });
6530 }
6531
6532 pub fn sort_lines_case_sensitive(
6533 &mut self,
6534 _: &SortLinesCaseSensitive,
6535 cx: &mut ViewContext<Self>,
6536 ) {
6537 self.manipulate_lines(cx, |lines| lines.sort())
6538 }
6539
6540 pub fn sort_lines_case_insensitive(
6541 &mut self,
6542 _: &SortLinesCaseInsensitive,
6543 cx: &mut ViewContext<Self>,
6544 ) {
6545 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6546 }
6547
6548 pub fn unique_lines_case_insensitive(
6549 &mut self,
6550 _: &UniqueLinesCaseInsensitive,
6551 cx: &mut ViewContext<Self>,
6552 ) {
6553 self.manipulate_lines(cx, |lines| {
6554 let mut seen = HashSet::default();
6555 lines.retain(|line| seen.insert(line.to_lowercase()));
6556 })
6557 }
6558
6559 pub fn unique_lines_case_sensitive(
6560 &mut self,
6561 _: &UniqueLinesCaseSensitive,
6562 cx: &mut ViewContext<Self>,
6563 ) {
6564 self.manipulate_lines(cx, |lines| {
6565 let mut seen = HashSet::default();
6566 lines.retain(|line| seen.insert(*line));
6567 })
6568 }
6569
6570 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6571 let mut revert_changes = HashMap::default();
6572 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6573 for hunk in hunks_for_rows(
6574 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6575 &multi_buffer_snapshot,
6576 ) {
6577 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6578 }
6579 if !revert_changes.is_empty() {
6580 self.transact(cx, |editor, cx| {
6581 editor.revert(revert_changes, cx);
6582 });
6583 }
6584 }
6585
6586 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6587 let Some(project) = self.project.clone() else {
6588 return;
6589 };
6590 self.reload(project, cx).detach_and_notify_err(cx);
6591 }
6592
6593 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6594 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6595 if !revert_changes.is_empty() {
6596 self.transact(cx, |editor, cx| {
6597 editor.revert(revert_changes, cx);
6598 });
6599 }
6600 }
6601
6602 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6603 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6604 let project_path = buffer.read(cx).project_path(cx)?;
6605 let project = self.project.as_ref()?.read(cx);
6606 let entry = project.entry_for_path(&project_path, cx)?;
6607 let parent = match &entry.canonical_path {
6608 Some(canonical_path) => canonical_path.to_path_buf(),
6609 None => project.absolute_path(&project_path, cx)?,
6610 }
6611 .parent()?
6612 .to_path_buf();
6613 Some(parent)
6614 }) {
6615 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6616 }
6617 }
6618
6619 fn gather_revert_changes(
6620 &mut self,
6621 selections: &[Selection<Anchor>],
6622 cx: &mut ViewContext<'_, Editor>,
6623 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6624 let mut revert_changes = HashMap::default();
6625 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6626 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6627 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6628 }
6629 revert_changes
6630 }
6631
6632 pub fn prepare_revert_change(
6633 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6634 multi_buffer: &Model<MultiBuffer>,
6635 hunk: &MultiBufferDiffHunk,
6636 cx: &AppContext,
6637 ) -> Option<()> {
6638 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6639 let buffer = buffer.read(cx);
6640 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6641 let buffer_snapshot = buffer.snapshot();
6642 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6643 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6644 probe
6645 .0
6646 .start
6647 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6648 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6649 }) {
6650 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6651 Some(())
6652 } else {
6653 None
6654 }
6655 }
6656
6657 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6658 self.manipulate_lines(cx, |lines| lines.reverse())
6659 }
6660
6661 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6662 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6663 }
6664
6665 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6666 where
6667 Fn: FnMut(&mut Vec<&str>),
6668 {
6669 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6670 let buffer = self.buffer.read(cx).snapshot(cx);
6671
6672 let mut edits = Vec::new();
6673
6674 let selections = self.selections.all::<Point>(cx);
6675 let mut selections = selections.iter().peekable();
6676 let mut contiguous_row_selections = Vec::new();
6677 let mut new_selections = Vec::new();
6678 let mut added_lines = 0;
6679 let mut removed_lines = 0;
6680
6681 while let Some(selection) = selections.next() {
6682 let (start_row, end_row) = consume_contiguous_rows(
6683 &mut contiguous_row_selections,
6684 selection,
6685 &display_map,
6686 &mut selections,
6687 );
6688
6689 let start_point = Point::new(start_row.0, 0);
6690 let end_point = Point::new(
6691 end_row.previous_row().0,
6692 buffer.line_len(end_row.previous_row()),
6693 );
6694 let text = buffer
6695 .text_for_range(start_point..end_point)
6696 .collect::<String>();
6697
6698 let mut lines = text.split('\n').collect_vec();
6699
6700 let lines_before = lines.len();
6701 callback(&mut lines);
6702 let lines_after = lines.len();
6703
6704 edits.push((start_point..end_point, lines.join("\n")));
6705
6706 // Selections must change based on added and removed line count
6707 let start_row =
6708 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6709 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6710 new_selections.push(Selection {
6711 id: selection.id,
6712 start: start_row,
6713 end: end_row,
6714 goal: SelectionGoal::None,
6715 reversed: selection.reversed,
6716 });
6717
6718 if lines_after > lines_before {
6719 added_lines += lines_after - lines_before;
6720 } else if lines_before > lines_after {
6721 removed_lines += lines_before - lines_after;
6722 }
6723 }
6724
6725 self.transact(cx, |this, cx| {
6726 let buffer = this.buffer.update(cx, |buffer, cx| {
6727 buffer.edit(edits, None, cx);
6728 buffer.snapshot(cx)
6729 });
6730
6731 // Recalculate offsets on newly edited buffer
6732 let new_selections = new_selections
6733 .iter()
6734 .map(|s| {
6735 let start_point = Point::new(s.start.0, 0);
6736 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6737 Selection {
6738 id: s.id,
6739 start: buffer.point_to_offset(start_point),
6740 end: buffer.point_to_offset(end_point),
6741 goal: s.goal,
6742 reversed: s.reversed,
6743 }
6744 })
6745 .collect();
6746
6747 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6748 s.select(new_selections);
6749 });
6750
6751 this.request_autoscroll(Autoscroll::fit(), cx);
6752 });
6753 }
6754
6755 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6756 self.manipulate_text(cx, |text| text.to_uppercase())
6757 }
6758
6759 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6760 self.manipulate_text(cx, |text| text.to_lowercase())
6761 }
6762
6763 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6764 self.manipulate_text(cx, |text| {
6765 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6766 // https://github.com/rutrum/convert-case/issues/16
6767 text.split('\n')
6768 .map(|line| line.to_case(Case::Title))
6769 .join("\n")
6770 })
6771 }
6772
6773 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6774 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6775 }
6776
6777 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6778 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6779 }
6780
6781 pub fn convert_to_upper_camel_case(
6782 &mut self,
6783 _: &ConvertToUpperCamelCase,
6784 cx: &mut ViewContext<Self>,
6785 ) {
6786 self.manipulate_text(cx, |text| {
6787 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6788 // https://github.com/rutrum/convert-case/issues/16
6789 text.split('\n')
6790 .map(|line| line.to_case(Case::UpperCamel))
6791 .join("\n")
6792 })
6793 }
6794
6795 pub fn convert_to_lower_camel_case(
6796 &mut self,
6797 _: &ConvertToLowerCamelCase,
6798 cx: &mut ViewContext<Self>,
6799 ) {
6800 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6801 }
6802
6803 pub fn convert_to_opposite_case(
6804 &mut self,
6805 _: &ConvertToOppositeCase,
6806 cx: &mut ViewContext<Self>,
6807 ) {
6808 self.manipulate_text(cx, |text| {
6809 text.chars()
6810 .fold(String::with_capacity(text.len()), |mut t, c| {
6811 if c.is_uppercase() {
6812 t.extend(c.to_lowercase());
6813 } else {
6814 t.extend(c.to_uppercase());
6815 }
6816 t
6817 })
6818 })
6819 }
6820
6821 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6822 where
6823 Fn: FnMut(&str) -> String,
6824 {
6825 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6826 let buffer = self.buffer.read(cx).snapshot(cx);
6827
6828 let mut new_selections = Vec::new();
6829 let mut edits = Vec::new();
6830 let mut selection_adjustment = 0i32;
6831
6832 for selection in self.selections.all::<usize>(cx) {
6833 let selection_is_empty = selection.is_empty();
6834
6835 let (start, end) = if selection_is_empty {
6836 let word_range = movement::surrounding_word(
6837 &display_map,
6838 selection.start.to_display_point(&display_map),
6839 );
6840 let start = word_range.start.to_offset(&display_map, Bias::Left);
6841 let end = word_range.end.to_offset(&display_map, Bias::Left);
6842 (start, end)
6843 } else {
6844 (selection.start, selection.end)
6845 };
6846
6847 let text = buffer.text_for_range(start..end).collect::<String>();
6848 let old_length = text.len() as i32;
6849 let text = callback(&text);
6850
6851 new_selections.push(Selection {
6852 start: (start as i32 - selection_adjustment) as usize,
6853 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6854 goal: SelectionGoal::None,
6855 ..selection
6856 });
6857
6858 selection_adjustment += old_length - text.len() as i32;
6859
6860 edits.push((start..end, text));
6861 }
6862
6863 self.transact(cx, |this, cx| {
6864 this.buffer.update(cx, |buffer, cx| {
6865 buffer.edit(edits, None, cx);
6866 });
6867
6868 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6869 s.select(new_selections);
6870 });
6871
6872 this.request_autoscroll(Autoscroll::fit(), cx);
6873 });
6874 }
6875
6876 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6877 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6878 let buffer = &display_map.buffer_snapshot;
6879 let selections = self.selections.all::<Point>(cx);
6880
6881 let mut edits = Vec::new();
6882 let mut selections_iter = selections.iter().peekable();
6883 while let Some(selection) = selections_iter.next() {
6884 // Avoid duplicating the same lines twice.
6885 let mut rows = selection.spanned_rows(false, &display_map);
6886
6887 while let Some(next_selection) = selections_iter.peek() {
6888 let next_rows = next_selection.spanned_rows(false, &display_map);
6889 if next_rows.start < rows.end {
6890 rows.end = next_rows.end;
6891 selections_iter.next().unwrap();
6892 } else {
6893 break;
6894 }
6895 }
6896
6897 // Copy the text from the selected row region and splice it either at the start
6898 // or end of the region.
6899 let start = Point::new(rows.start.0, 0);
6900 let end = Point::new(
6901 rows.end.previous_row().0,
6902 buffer.line_len(rows.end.previous_row()),
6903 );
6904 let text = buffer
6905 .text_for_range(start..end)
6906 .chain(Some("\n"))
6907 .collect::<String>();
6908 let insert_location = if upwards {
6909 Point::new(rows.end.0, 0)
6910 } else {
6911 start
6912 };
6913 edits.push((insert_location..insert_location, text));
6914 }
6915
6916 self.transact(cx, |this, cx| {
6917 this.buffer.update(cx, |buffer, cx| {
6918 buffer.edit(edits, None, cx);
6919 });
6920
6921 this.request_autoscroll(Autoscroll::fit(), cx);
6922 });
6923 }
6924
6925 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6926 self.duplicate_line(true, cx);
6927 }
6928
6929 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6930 self.duplicate_line(false, cx);
6931 }
6932
6933 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6934 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6935 let buffer = self.buffer.read(cx).snapshot(cx);
6936
6937 let mut edits = Vec::new();
6938 let mut unfold_ranges = Vec::new();
6939 let mut refold_creases = Vec::new();
6940
6941 let selections = self.selections.all::<Point>(cx);
6942 let mut selections = selections.iter().peekable();
6943 let mut contiguous_row_selections = Vec::new();
6944 let mut new_selections = Vec::new();
6945
6946 while let Some(selection) = selections.next() {
6947 // Find all the selections that span a contiguous row range
6948 let (start_row, end_row) = consume_contiguous_rows(
6949 &mut contiguous_row_selections,
6950 selection,
6951 &display_map,
6952 &mut selections,
6953 );
6954
6955 // Move the text spanned by the row range to be before the line preceding the row range
6956 if start_row.0 > 0 {
6957 let range_to_move = Point::new(
6958 start_row.previous_row().0,
6959 buffer.line_len(start_row.previous_row()),
6960 )
6961 ..Point::new(
6962 end_row.previous_row().0,
6963 buffer.line_len(end_row.previous_row()),
6964 );
6965 let insertion_point = display_map
6966 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6967 .0;
6968
6969 // Don't move lines across excerpts
6970 if buffer
6971 .excerpt_boundaries_in_range((
6972 Bound::Excluded(insertion_point),
6973 Bound::Included(range_to_move.end),
6974 ))
6975 .next()
6976 .is_none()
6977 {
6978 let text = buffer
6979 .text_for_range(range_to_move.clone())
6980 .flat_map(|s| s.chars())
6981 .skip(1)
6982 .chain(['\n'])
6983 .collect::<String>();
6984
6985 edits.push((
6986 buffer.anchor_after(range_to_move.start)
6987 ..buffer.anchor_before(range_to_move.end),
6988 String::new(),
6989 ));
6990 let insertion_anchor = buffer.anchor_after(insertion_point);
6991 edits.push((insertion_anchor..insertion_anchor, text));
6992
6993 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6994
6995 // Move selections up
6996 new_selections.extend(contiguous_row_selections.drain(..).map(
6997 |mut selection| {
6998 selection.start.row -= row_delta;
6999 selection.end.row -= row_delta;
7000 selection
7001 },
7002 ));
7003
7004 // Move folds up
7005 unfold_ranges.push(range_to_move.clone());
7006 for fold in display_map.folds_in_range(
7007 buffer.anchor_before(range_to_move.start)
7008 ..buffer.anchor_after(range_to_move.end),
7009 ) {
7010 let mut start = fold.range.start.to_point(&buffer);
7011 let mut end = fold.range.end.to_point(&buffer);
7012 start.row -= row_delta;
7013 end.row -= row_delta;
7014 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7015 }
7016 }
7017 }
7018
7019 // If we didn't move line(s), preserve the existing selections
7020 new_selections.append(&mut contiguous_row_selections);
7021 }
7022
7023 self.transact(cx, |this, cx| {
7024 this.unfold_ranges(&unfold_ranges, true, true, cx);
7025 this.buffer.update(cx, |buffer, cx| {
7026 for (range, text) in edits {
7027 buffer.edit([(range, text)], None, cx);
7028 }
7029 });
7030 this.fold_creases(refold_creases, true, cx);
7031 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7032 s.select(new_selections);
7033 })
7034 });
7035 }
7036
7037 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
7038 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7039 let buffer = self.buffer.read(cx).snapshot(cx);
7040
7041 let mut edits = Vec::new();
7042 let mut unfold_ranges = Vec::new();
7043 let mut refold_creases = Vec::new();
7044
7045 let selections = self.selections.all::<Point>(cx);
7046 let mut selections = selections.iter().peekable();
7047 let mut contiguous_row_selections = Vec::new();
7048 let mut new_selections = Vec::new();
7049
7050 while let Some(selection) = selections.next() {
7051 // Find all the selections that span a contiguous row range
7052 let (start_row, end_row) = consume_contiguous_rows(
7053 &mut contiguous_row_selections,
7054 selection,
7055 &display_map,
7056 &mut selections,
7057 );
7058
7059 // Move the text spanned by the row range to be after the last line of the row range
7060 if end_row.0 <= buffer.max_point().row {
7061 let range_to_move =
7062 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
7063 let insertion_point = display_map
7064 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
7065 .0;
7066
7067 // Don't move lines across excerpt boundaries
7068 if buffer
7069 .excerpt_boundaries_in_range((
7070 Bound::Excluded(range_to_move.start),
7071 Bound::Included(insertion_point),
7072 ))
7073 .next()
7074 .is_none()
7075 {
7076 let mut text = String::from("\n");
7077 text.extend(buffer.text_for_range(range_to_move.clone()));
7078 text.pop(); // Drop trailing newline
7079 edits.push((
7080 buffer.anchor_after(range_to_move.start)
7081 ..buffer.anchor_before(range_to_move.end),
7082 String::new(),
7083 ));
7084 let insertion_anchor = buffer.anchor_after(insertion_point);
7085 edits.push((insertion_anchor..insertion_anchor, text));
7086
7087 let row_delta = insertion_point.row - range_to_move.end.row + 1;
7088
7089 // Move selections down
7090 new_selections.extend(contiguous_row_selections.drain(..).map(
7091 |mut selection| {
7092 selection.start.row += row_delta;
7093 selection.end.row += row_delta;
7094 selection
7095 },
7096 ));
7097
7098 // Move folds down
7099 unfold_ranges.push(range_to_move.clone());
7100 for fold in display_map.folds_in_range(
7101 buffer.anchor_before(range_to_move.start)
7102 ..buffer.anchor_after(range_to_move.end),
7103 ) {
7104 let mut start = fold.range.start.to_point(&buffer);
7105 let mut end = fold.range.end.to_point(&buffer);
7106 start.row += row_delta;
7107 end.row += row_delta;
7108 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7109 }
7110 }
7111 }
7112
7113 // If we didn't move line(s), preserve the existing selections
7114 new_selections.append(&mut contiguous_row_selections);
7115 }
7116
7117 self.transact(cx, |this, cx| {
7118 this.unfold_ranges(&unfold_ranges, true, true, cx);
7119 this.buffer.update(cx, |buffer, cx| {
7120 for (range, text) in edits {
7121 buffer.edit([(range, text)], None, cx);
7122 }
7123 });
7124 this.fold_creases(refold_creases, true, cx);
7125 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
7126 });
7127 }
7128
7129 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
7130 let text_layout_details = &self.text_layout_details(cx);
7131 self.transact(cx, |this, cx| {
7132 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7133 let mut edits: Vec<(Range<usize>, String)> = Default::default();
7134 let line_mode = s.line_mode;
7135 s.move_with(|display_map, selection| {
7136 if !selection.is_empty() || line_mode {
7137 return;
7138 }
7139
7140 let mut head = selection.head();
7141 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
7142 if head.column() == display_map.line_len(head.row()) {
7143 transpose_offset = display_map
7144 .buffer_snapshot
7145 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7146 }
7147
7148 if transpose_offset == 0 {
7149 return;
7150 }
7151
7152 *head.column_mut() += 1;
7153 head = display_map.clip_point(head, Bias::Right);
7154 let goal = SelectionGoal::HorizontalPosition(
7155 display_map
7156 .x_for_display_point(head, text_layout_details)
7157 .into(),
7158 );
7159 selection.collapse_to(head, goal);
7160
7161 let transpose_start = display_map
7162 .buffer_snapshot
7163 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7164 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7165 let transpose_end = display_map
7166 .buffer_snapshot
7167 .clip_offset(transpose_offset + 1, Bias::Right);
7168 if let Some(ch) =
7169 display_map.buffer_snapshot.chars_at(transpose_start).next()
7170 {
7171 edits.push((transpose_start..transpose_offset, String::new()));
7172 edits.push((transpose_end..transpose_end, ch.to_string()));
7173 }
7174 }
7175 });
7176 edits
7177 });
7178 this.buffer
7179 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7180 let selections = this.selections.all::<usize>(cx);
7181 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7182 s.select(selections);
7183 });
7184 });
7185 }
7186
7187 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
7188 self.rewrap_impl(IsVimMode::No, cx)
7189 }
7190
7191 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
7192 let buffer = self.buffer.read(cx).snapshot(cx);
7193 let selections = self.selections.all::<Point>(cx);
7194 let mut selections = selections.iter().peekable();
7195
7196 let mut edits = Vec::new();
7197 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7198
7199 while let Some(selection) = selections.next() {
7200 let mut start_row = selection.start.row;
7201 let mut end_row = selection.end.row;
7202
7203 // Skip selections that overlap with a range that has already been rewrapped.
7204 let selection_range = start_row..end_row;
7205 if rewrapped_row_ranges
7206 .iter()
7207 .any(|range| range.overlaps(&selection_range))
7208 {
7209 continue;
7210 }
7211
7212 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
7213
7214 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7215 match language_scope.language_name().0.as_ref() {
7216 "Markdown" | "Plain Text" => {
7217 should_rewrap = true;
7218 }
7219 _ => {}
7220 }
7221 }
7222
7223 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7224
7225 // Since not all lines in the selection may be at the same indent
7226 // level, choose the indent size that is the most common between all
7227 // of the lines.
7228 //
7229 // If there is a tie, we use the deepest indent.
7230 let (indent_size, indent_end) = {
7231 let mut indent_size_occurrences = HashMap::default();
7232 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7233
7234 for row in start_row..=end_row {
7235 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7236 rows_by_indent_size.entry(indent).or_default().push(row);
7237 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7238 }
7239
7240 let indent_size = indent_size_occurrences
7241 .into_iter()
7242 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7243 .map(|(indent, _)| indent)
7244 .unwrap_or_default();
7245 let row = rows_by_indent_size[&indent_size][0];
7246 let indent_end = Point::new(row, indent_size.len);
7247
7248 (indent_size, indent_end)
7249 };
7250
7251 let mut line_prefix = indent_size.chars().collect::<String>();
7252
7253 if let Some(comment_prefix) =
7254 buffer
7255 .language_scope_at(selection.head())
7256 .and_then(|language| {
7257 language
7258 .line_comment_prefixes()
7259 .iter()
7260 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7261 .cloned()
7262 })
7263 {
7264 line_prefix.push_str(&comment_prefix);
7265 should_rewrap = true;
7266 }
7267
7268 if !should_rewrap {
7269 continue;
7270 }
7271
7272 if selection.is_empty() {
7273 'expand_upwards: while start_row > 0 {
7274 let prev_row = start_row - 1;
7275 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7276 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7277 {
7278 start_row = prev_row;
7279 } else {
7280 break 'expand_upwards;
7281 }
7282 }
7283
7284 'expand_downwards: while end_row < buffer.max_point().row {
7285 let next_row = end_row + 1;
7286 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7287 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7288 {
7289 end_row = next_row;
7290 } else {
7291 break 'expand_downwards;
7292 }
7293 }
7294 }
7295
7296 let start = Point::new(start_row, 0);
7297 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7298 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7299 let Some(lines_without_prefixes) = selection_text
7300 .lines()
7301 .map(|line| {
7302 line.strip_prefix(&line_prefix)
7303 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7304 .ok_or_else(|| {
7305 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7306 })
7307 })
7308 .collect::<Result<Vec<_>, _>>()
7309 .log_err()
7310 else {
7311 continue;
7312 };
7313
7314 let wrap_column = buffer
7315 .settings_at(Point::new(start_row, 0), cx)
7316 .preferred_line_length as usize;
7317 let wrapped_text = wrap_with_prefix(
7318 line_prefix,
7319 lines_without_prefixes.join(" "),
7320 wrap_column,
7321 tab_size,
7322 );
7323
7324 // TODO: should always use char-based diff while still supporting cursor behavior that
7325 // matches vim.
7326 let diff = match is_vim_mode {
7327 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
7328 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
7329 };
7330 let mut offset = start.to_offset(&buffer);
7331 let mut moved_since_edit = true;
7332
7333 for change in diff.iter_all_changes() {
7334 let value = change.value();
7335 match change.tag() {
7336 ChangeTag::Equal => {
7337 offset += value.len();
7338 moved_since_edit = true;
7339 }
7340 ChangeTag::Delete => {
7341 let start = buffer.anchor_after(offset);
7342 let end = buffer.anchor_before(offset + value.len());
7343
7344 if moved_since_edit {
7345 edits.push((start..end, String::new()));
7346 } else {
7347 edits.last_mut().unwrap().0.end = end;
7348 }
7349
7350 offset += value.len();
7351 moved_since_edit = false;
7352 }
7353 ChangeTag::Insert => {
7354 if moved_since_edit {
7355 let anchor = buffer.anchor_after(offset);
7356 edits.push((anchor..anchor, value.to_string()));
7357 } else {
7358 edits.last_mut().unwrap().1.push_str(value);
7359 }
7360
7361 moved_since_edit = false;
7362 }
7363 }
7364 }
7365
7366 rewrapped_row_ranges.push(start_row..=end_row);
7367 }
7368
7369 self.buffer
7370 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7371 }
7372
7373 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7374 let mut text = String::new();
7375 let buffer = self.buffer.read(cx).snapshot(cx);
7376 let mut selections = self.selections.all::<Point>(cx);
7377 let mut clipboard_selections = Vec::with_capacity(selections.len());
7378 {
7379 let max_point = buffer.max_point();
7380 let mut is_first = true;
7381 for selection in &mut selections {
7382 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7383 if is_entire_line {
7384 selection.start = Point::new(selection.start.row, 0);
7385 if !selection.is_empty() && selection.end.column == 0 {
7386 selection.end = cmp::min(max_point, selection.end);
7387 } else {
7388 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7389 }
7390 selection.goal = SelectionGoal::None;
7391 }
7392 if is_first {
7393 is_first = false;
7394 } else {
7395 text += "\n";
7396 }
7397 let mut len = 0;
7398 for chunk in buffer.text_for_range(selection.start..selection.end) {
7399 text.push_str(chunk);
7400 len += chunk.len();
7401 }
7402 clipboard_selections.push(ClipboardSelection {
7403 len,
7404 is_entire_line,
7405 first_line_indent: buffer
7406 .indent_size_for_line(MultiBufferRow(selection.start.row))
7407 .len,
7408 });
7409 }
7410 }
7411
7412 self.transact(cx, |this, cx| {
7413 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7414 s.select(selections);
7415 });
7416 this.insert("", cx);
7417 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7418 text,
7419 clipboard_selections,
7420 ));
7421 });
7422 }
7423
7424 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7425 let selections = self.selections.all::<Point>(cx);
7426 let buffer = self.buffer.read(cx).read(cx);
7427 let mut text = String::new();
7428
7429 let mut clipboard_selections = Vec::with_capacity(selections.len());
7430 {
7431 let max_point = buffer.max_point();
7432 let mut is_first = true;
7433 for selection in selections.iter() {
7434 let mut start = selection.start;
7435 let mut end = selection.end;
7436 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7437 if is_entire_line {
7438 start = Point::new(start.row, 0);
7439 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7440 }
7441 if is_first {
7442 is_first = false;
7443 } else {
7444 text += "\n";
7445 }
7446 let mut len = 0;
7447 for chunk in buffer.text_for_range(start..end) {
7448 text.push_str(chunk);
7449 len += chunk.len();
7450 }
7451 clipboard_selections.push(ClipboardSelection {
7452 len,
7453 is_entire_line,
7454 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7455 });
7456 }
7457 }
7458
7459 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7460 text,
7461 clipboard_selections,
7462 ));
7463 }
7464
7465 pub fn do_paste(
7466 &mut self,
7467 text: &String,
7468 clipboard_selections: Option<Vec<ClipboardSelection>>,
7469 handle_entire_lines: bool,
7470 cx: &mut ViewContext<Self>,
7471 ) {
7472 if self.read_only(cx) {
7473 return;
7474 }
7475
7476 let clipboard_text = Cow::Borrowed(text);
7477
7478 self.transact(cx, |this, cx| {
7479 if let Some(mut clipboard_selections) = clipboard_selections {
7480 let old_selections = this.selections.all::<usize>(cx);
7481 let all_selections_were_entire_line =
7482 clipboard_selections.iter().all(|s| s.is_entire_line);
7483 let first_selection_indent_column =
7484 clipboard_selections.first().map(|s| s.first_line_indent);
7485 if clipboard_selections.len() != old_selections.len() {
7486 clipboard_selections.drain(..);
7487 }
7488 let cursor_offset = this.selections.last::<usize>(cx).head();
7489 let mut auto_indent_on_paste = true;
7490
7491 this.buffer.update(cx, |buffer, cx| {
7492 let snapshot = buffer.read(cx);
7493 auto_indent_on_paste =
7494 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7495
7496 let mut start_offset = 0;
7497 let mut edits = Vec::new();
7498 let mut original_indent_columns = Vec::new();
7499 for (ix, selection) in old_selections.iter().enumerate() {
7500 let to_insert;
7501 let entire_line;
7502 let original_indent_column;
7503 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7504 let end_offset = start_offset + clipboard_selection.len;
7505 to_insert = &clipboard_text[start_offset..end_offset];
7506 entire_line = clipboard_selection.is_entire_line;
7507 start_offset = end_offset + 1;
7508 original_indent_column = Some(clipboard_selection.first_line_indent);
7509 } else {
7510 to_insert = clipboard_text.as_str();
7511 entire_line = all_selections_were_entire_line;
7512 original_indent_column = first_selection_indent_column
7513 }
7514
7515 // If the corresponding selection was empty when this slice of the
7516 // clipboard text was written, then the entire line containing the
7517 // selection was copied. If this selection is also currently empty,
7518 // then paste the line before the current line of the buffer.
7519 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7520 let column = selection.start.to_point(&snapshot).column as usize;
7521 let line_start = selection.start - column;
7522 line_start..line_start
7523 } else {
7524 selection.range()
7525 };
7526
7527 edits.push((range, to_insert));
7528 original_indent_columns.extend(original_indent_column);
7529 }
7530 drop(snapshot);
7531
7532 buffer.edit(
7533 edits,
7534 if auto_indent_on_paste {
7535 Some(AutoindentMode::Block {
7536 original_indent_columns,
7537 })
7538 } else {
7539 None
7540 },
7541 cx,
7542 );
7543 });
7544
7545 let selections = this.selections.all::<usize>(cx);
7546 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7547 } else {
7548 this.insert(&clipboard_text, cx);
7549 }
7550 });
7551 }
7552
7553 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7554 if let Some(item) = cx.read_from_clipboard() {
7555 let entries = item.entries();
7556
7557 match entries.first() {
7558 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7559 // of all the pasted entries.
7560 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7561 .do_paste(
7562 clipboard_string.text(),
7563 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7564 true,
7565 cx,
7566 ),
7567 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7568 }
7569 }
7570 }
7571
7572 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7573 if self.read_only(cx) {
7574 return;
7575 }
7576
7577 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7578 if let Some((selections, _)) =
7579 self.selection_history.transaction(transaction_id).cloned()
7580 {
7581 self.change_selections(None, cx, |s| {
7582 s.select_anchors(selections.to_vec());
7583 });
7584 }
7585 self.request_autoscroll(Autoscroll::fit(), cx);
7586 self.unmark_text(cx);
7587 self.refresh_inline_completion(true, false, cx);
7588 cx.emit(EditorEvent::Edited { transaction_id });
7589 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7590 }
7591 }
7592
7593 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7594 if self.read_only(cx) {
7595 return;
7596 }
7597
7598 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7599 if let Some((_, Some(selections))) =
7600 self.selection_history.transaction(transaction_id).cloned()
7601 {
7602 self.change_selections(None, cx, |s| {
7603 s.select_anchors(selections.to_vec());
7604 });
7605 }
7606 self.request_autoscroll(Autoscroll::fit(), cx);
7607 self.unmark_text(cx);
7608 self.refresh_inline_completion(true, false, cx);
7609 cx.emit(EditorEvent::Edited { transaction_id });
7610 }
7611 }
7612
7613 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7614 self.buffer
7615 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7616 }
7617
7618 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7619 self.buffer
7620 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7621 }
7622
7623 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7624 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7625 let line_mode = s.line_mode;
7626 s.move_with(|map, selection| {
7627 let cursor = if selection.is_empty() && !line_mode {
7628 movement::left(map, selection.start)
7629 } else {
7630 selection.start
7631 };
7632 selection.collapse_to(cursor, SelectionGoal::None);
7633 });
7634 })
7635 }
7636
7637 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7638 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7639 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7640 })
7641 }
7642
7643 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7644 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7645 let line_mode = s.line_mode;
7646 s.move_with(|map, selection| {
7647 let cursor = if selection.is_empty() && !line_mode {
7648 movement::right(map, selection.end)
7649 } else {
7650 selection.end
7651 };
7652 selection.collapse_to(cursor, SelectionGoal::None)
7653 });
7654 })
7655 }
7656
7657 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7658 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7659 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7660 })
7661 }
7662
7663 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7664 if self.take_rename(true, cx).is_some() {
7665 return;
7666 }
7667
7668 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7669 cx.propagate();
7670 return;
7671 }
7672
7673 let text_layout_details = &self.text_layout_details(cx);
7674 let selection_count = self.selections.count();
7675 let first_selection = self.selections.first_anchor();
7676
7677 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7678 let line_mode = s.line_mode;
7679 s.move_with(|map, selection| {
7680 if !selection.is_empty() && !line_mode {
7681 selection.goal = SelectionGoal::None;
7682 }
7683 let (cursor, goal) = movement::up(
7684 map,
7685 selection.start,
7686 selection.goal,
7687 false,
7688 text_layout_details,
7689 );
7690 selection.collapse_to(cursor, goal);
7691 });
7692 });
7693
7694 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7695 {
7696 cx.propagate();
7697 }
7698 }
7699
7700 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7701 if self.take_rename(true, cx).is_some() {
7702 return;
7703 }
7704
7705 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7706 cx.propagate();
7707 return;
7708 }
7709
7710 let text_layout_details = &self.text_layout_details(cx);
7711
7712 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7713 let line_mode = s.line_mode;
7714 s.move_with(|map, selection| {
7715 if !selection.is_empty() && !line_mode {
7716 selection.goal = SelectionGoal::None;
7717 }
7718 let (cursor, goal) = movement::up_by_rows(
7719 map,
7720 selection.start,
7721 action.lines,
7722 selection.goal,
7723 false,
7724 text_layout_details,
7725 );
7726 selection.collapse_to(cursor, goal);
7727 });
7728 })
7729 }
7730
7731 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7732 if self.take_rename(true, cx).is_some() {
7733 return;
7734 }
7735
7736 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7737 cx.propagate();
7738 return;
7739 }
7740
7741 let text_layout_details = &self.text_layout_details(cx);
7742
7743 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7744 let line_mode = s.line_mode;
7745 s.move_with(|map, selection| {
7746 if !selection.is_empty() && !line_mode {
7747 selection.goal = SelectionGoal::None;
7748 }
7749 let (cursor, goal) = movement::down_by_rows(
7750 map,
7751 selection.start,
7752 action.lines,
7753 selection.goal,
7754 false,
7755 text_layout_details,
7756 );
7757 selection.collapse_to(cursor, goal);
7758 });
7759 })
7760 }
7761
7762 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7763 let text_layout_details = &self.text_layout_details(cx);
7764 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7765 s.move_heads_with(|map, head, goal| {
7766 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7767 })
7768 })
7769 }
7770
7771 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7772 let text_layout_details = &self.text_layout_details(cx);
7773 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7774 s.move_heads_with(|map, head, goal| {
7775 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7776 })
7777 })
7778 }
7779
7780 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7781 let Some(row_count) = self.visible_row_count() else {
7782 return;
7783 };
7784
7785 let text_layout_details = &self.text_layout_details(cx);
7786
7787 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7788 s.move_heads_with(|map, head, goal| {
7789 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7790 })
7791 })
7792 }
7793
7794 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7795 if self.take_rename(true, cx).is_some() {
7796 return;
7797 }
7798
7799 if self
7800 .context_menu
7801 .write()
7802 .as_mut()
7803 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7804 .unwrap_or(false)
7805 {
7806 return;
7807 }
7808
7809 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7810 cx.propagate();
7811 return;
7812 }
7813
7814 let Some(row_count) = self.visible_row_count() else {
7815 return;
7816 };
7817
7818 let autoscroll = if action.center_cursor {
7819 Autoscroll::center()
7820 } else {
7821 Autoscroll::fit()
7822 };
7823
7824 let text_layout_details = &self.text_layout_details(cx);
7825
7826 self.change_selections(Some(autoscroll), cx, |s| {
7827 let line_mode = s.line_mode;
7828 s.move_with(|map, selection| {
7829 if !selection.is_empty() && !line_mode {
7830 selection.goal = SelectionGoal::None;
7831 }
7832 let (cursor, goal) = movement::up_by_rows(
7833 map,
7834 selection.end,
7835 row_count,
7836 selection.goal,
7837 false,
7838 text_layout_details,
7839 );
7840 selection.collapse_to(cursor, goal);
7841 });
7842 });
7843 }
7844
7845 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7846 let text_layout_details = &self.text_layout_details(cx);
7847 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7848 s.move_heads_with(|map, head, goal| {
7849 movement::up(map, head, goal, false, text_layout_details)
7850 })
7851 })
7852 }
7853
7854 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7855 self.take_rename(true, cx);
7856
7857 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7858 cx.propagate();
7859 return;
7860 }
7861
7862 let text_layout_details = &self.text_layout_details(cx);
7863 let selection_count = self.selections.count();
7864 let first_selection = self.selections.first_anchor();
7865
7866 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7867 let line_mode = s.line_mode;
7868 s.move_with(|map, selection| {
7869 if !selection.is_empty() && !line_mode {
7870 selection.goal = SelectionGoal::None;
7871 }
7872 let (cursor, goal) = movement::down(
7873 map,
7874 selection.end,
7875 selection.goal,
7876 false,
7877 text_layout_details,
7878 );
7879 selection.collapse_to(cursor, goal);
7880 });
7881 });
7882
7883 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7884 {
7885 cx.propagate();
7886 }
7887 }
7888
7889 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7890 let Some(row_count) = self.visible_row_count() else {
7891 return;
7892 };
7893
7894 let text_layout_details = &self.text_layout_details(cx);
7895
7896 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7897 s.move_heads_with(|map, head, goal| {
7898 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7899 })
7900 })
7901 }
7902
7903 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7904 if self.take_rename(true, cx).is_some() {
7905 return;
7906 }
7907
7908 if self
7909 .context_menu
7910 .write()
7911 .as_mut()
7912 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7913 .unwrap_or(false)
7914 {
7915 return;
7916 }
7917
7918 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7919 cx.propagate();
7920 return;
7921 }
7922
7923 let Some(row_count) = self.visible_row_count() else {
7924 return;
7925 };
7926
7927 let autoscroll = if action.center_cursor {
7928 Autoscroll::center()
7929 } else {
7930 Autoscroll::fit()
7931 };
7932
7933 let text_layout_details = &self.text_layout_details(cx);
7934 self.change_selections(Some(autoscroll), cx, |s| {
7935 let line_mode = s.line_mode;
7936 s.move_with(|map, selection| {
7937 if !selection.is_empty() && !line_mode {
7938 selection.goal = SelectionGoal::None;
7939 }
7940 let (cursor, goal) = movement::down_by_rows(
7941 map,
7942 selection.end,
7943 row_count,
7944 selection.goal,
7945 false,
7946 text_layout_details,
7947 );
7948 selection.collapse_to(cursor, goal);
7949 });
7950 });
7951 }
7952
7953 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7954 let text_layout_details = &self.text_layout_details(cx);
7955 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7956 s.move_heads_with(|map, head, goal| {
7957 movement::down(map, head, goal, false, text_layout_details)
7958 })
7959 });
7960 }
7961
7962 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7963 if let Some(context_menu) = self.context_menu.write().as_mut() {
7964 context_menu.select_first(self.completion_provider.as_deref(), cx);
7965 }
7966 }
7967
7968 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7969 if let Some(context_menu) = self.context_menu.write().as_mut() {
7970 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7971 }
7972 }
7973
7974 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7975 if let Some(context_menu) = self.context_menu.write().as_mut() {
7976 context_menu.select_next(self.completion_provider.as_deref(), cx);
7977 }
7978 }
7979
7980 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7981 if let Some(context_menu) = self.context_menu.write().as_mut() {
7982 context_menu.select_last(self.completion_provider.as_deref(), cx);
7983 }
7984 }
7985
7986 pub fn move_to_previous_word_start(
7987 &mut self,
7988 _: &MoveToPreviousWordStart,
7989 cx: &mut ViewContext<Self>,
7990 ) {
7991 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7992 s.move_cursors_with(|map, head, _| {
7993 (
7994 movement::previous_word_start(map, head),
7995 SelectionGoal::None,
7996 )
7997 });
7998 })
7999 }
8000
8001 pub fn move_to_previous_subword_start(
8002 &mut self,
8003 _: &MoveToPreviousSubwordStart,
8004 cx: &mut ViewContext<Self>,
8005 ) {
8006 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8007 s.move_cursors_with(|map, head, _| {
8008 (
8009 movement::previous_subword_start(map, head),
8010 SelectionGoal::None,
8011 )
8012 });
8013 })
8014 }
8015
8016 pub fn select_to_previous_word_start(
8017 &mut self,
8018 _: &SelectToPreviousWordStart,
8019 cx: &mut ViewContext<Self>,
8020 ) {
8021 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8022 s.move_heads_with(|map, head, _| {
8023 (
8024 movement::previous_word_start(map, head),
8025 SelectionGoal::None,
8026 )
8027 });
8028 })
8029 }
8030
8031 pub fn select_to_previous_subword_start(
8032 &mut self,
8033 _: &SelectToPreviousSubwordStart,
8034 cx: &mut ViewContext<Self>,
8035 ) {
8036 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8037 s.move_heads_with(|map, head, _| {
8038 (
8039 movement::previous_subword_start(map, head),
8040 SelectionGoal::None,
8041 )
8042 });
8043 })
8044 }
8045
8046 pub fn delete_to_previous_word_start(
8047 &mut self,
8048 action: &DeleteToPreviousWordStart,
8049 cx: &mut ViewContext<Self>,
8050 ) {
8051 self.transact(cx, |this, cx| {
8052 this.select_autoclose_pair(cx);
8053 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8054 let line_mode = s.line_mode;
8055 s.move_with(|map, selection| {
8056 if selection.is_empty() && !line_mode {
8057 let cursor = if action.ignore_newlines {
8058 movement::previous_word_start(map, selection.head())
8059 } else {
8060 movement::previous_word_start_or_newline(map, selection.head())
8061 };
8062 selection.set_head(cursor, SelectionGoal::None);
8063 }
8064 });
8065 });
8066 this.insert("", cx);
8067 });
8068 }
8069
8070 pub fn delete_to_previous_subword_start(
8071 &mut self,
8072 _: &DeleteToPreviousSubwordStart,
8073 cx: &mut ViewContext<Self>,
8074 ) {
8075 self.transact(cx, |this, cx| {
8076 this.select_autoclose_pair(cx);
8077 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8078 let line_mode = s.line_mode;
8079 s.move_with(|map, selection| {
8080 if selection.is_empty() && !line_mode {
8081 let cursor = movement::previous_subword_start(map, selection.head());
8082 selection.set_head(cursor, SelectionGoal::None);
8083 }
8084 });
8085 });
8086 this.insert("", cx);
8087 });
8088 }
8089
8090 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
8091 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8092 s.move_cursors_with(|map, head, _| {
8093 (movement::next_word_end(map, head), SelectionGoal::None)
8094 });
8095 })
8096 }
8097
8098 pub fn move_to_next_subword_end(
8099 &mut self,
8100 _: &MoveToNextSubwordEnd,
8101 cx: &mut ViewContext<Self>,
8102 ) {
8103 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8104 s.move_cursors_with(|map, head, _| {
8105 (movement::next_subword_end(map, head), SelectionGoal::None)
8106 });
8107 })
8108 }
8109
8110 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
8111 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8112 s.move_heads_with(|map, head, _| {
8113 (movement::next_word_end(map, head), SelectionGoal::None)
8114 });
8115 })
8116 }
8117
8118 pub fn select_to_next_subword_end(
8119 &mut self,
8120 _: &SelectToNextSubwordEnd,
8121 cx: &mut ViewContext<Self>,
8122 ) {
8123 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8124 s.move_heads_with(|map, head, _| {
8125 (movement::next_subword_end(map, head), SelectionGoal::None)
8126 });
8127 })
8128 }
8129
8130 pub fn delete_to_next_word_end(
8131 &mut self,
8132 action: &DeleteToNextWordEnd,
8133 cx: &mut ViewContext<Self>,
8134 ) {
8135 self.transact(cx, |this, cx| {
8136 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8137 let line_mode = s.line_mode;
8138 s.move_with(|map, selection| {
8139 if selection.is_empty() && !line_mode {
8140 let cursor = if action.ignore_newlines {
8141 movement::next_word_end(map, selection.head())
8142 } else {
8143 movement::next_word_end_or_newline(map, selection.head())
8144 };
8145 selection.set_head(cursor, SelectionGoal::None);
8146 }
8147 });
8148 });
8149 this.insert("", cx);
8150 });
8151 }
8152
8153 pub fn delete_to_next_subword_end(
8154 &mut self,
8155 _: &DeleteToNextSubwordEnd,
8156 cx: &mut ViewContext<Self>,
8157 ) {
8158 self.transact(cx, |this, cx| {
8159 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8160 s.move_with(|map, selection| {
8161 if selection.is_empty() {
8162 let cursor = movement::next_subword_end(map, selection.head());
8163 selection.set_head(cursor, SelectionGoal::None);
8164 }
8165 });
8166 });
8167 this.insert("", cx);
8168 });
8169 }
8170
8171 pub fn move_to_beginning_of_line(
8172 &mut self,
8173 action: &MoveToBeginningOfLine,
8174 cx: &mut ViewContext<Self>,
8175 ) {
8176 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8177 s.move_cursors_with(|map, head, _| {
8178 (
8179 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8180 SelectionGoal::None,
8181 )
8182 });
8183 })
8184 }
8185
8186 pub fn select_to_beginning_of_line(
8187 &mut self,
8188 action: &SelectToBeginningOfLine,
8189 cx: &mut ViewContext<Self>,
8190 ) {
8191 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8192 s.move_heads_with(|map, head, _| {
8193 (
8194 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
8195 SelectionGoal::None,
8196 )
8197 });
8198 });
8199 }
8200
8201 pub fn delete_to_beginning_of_line(
8202 &mut self,
8203 _: &DeleteToBeginningOfLine,
8204 cx: &mut ViewContext<Self>,
8205 ) {
8206 self.transact(cx, |this, cx| {
8207 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8208 s.move_with(|_, selection| {
8209 selection.reversed = true;
8210 });
8211 });
8212
8213 this.select_to_beginning_of_line(
8214 &SelectToBeginningOfLine {
8215 stop_at_soft_wraps: false,
8216 },
8217 cx,
8218 );
8219 this.backspace(&Backspace, cx);
8220 });
8221 }
8222
8223 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
8224 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8225 s.move_cursors_with(|map, head, _| {
8226 (
8227 movement::line_end(map, head, action.stop_at_soft_wraps),
8228 SelectionGoal::None,
8229 )
8230 });
8231 })
8232 }
8233
8234 pub fn select_to_end_of_line(
8235 &mut self,
8236 action: &SelectToEndOfLine,
8237 cx: &mut ViewContext<Self>,
8238 ) {
8239 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8240 s.move_heads_with(|map, head, _| {
8241 (
8242 movement::line_end(map, head, action.stop_at_soft_wraps),
8243 SelectionGoal::None,
8244 )
8245 });
8246 })
8247 }
8248
8249 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
8250 self.transact(cx, |this, cx| {
8251 this.select_to_end_of_line(
8252 &SelectToEndOfLine {
8253 stop_at_soft_wraps: false,
8254 },
8255 cx,
8256 );
8257 this.delete(&Delete, cx);
8258 });
8259 }
8260
8261 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
8262 self.transact(cx, |this, cx| {
8263 this.select_to_end_of_line(
8264 &SelectToEndOfLine {
8265 stop_at_soft_wraps: false,
8266 },
8267 cx,
8268 );
8269 this.cut(&Cut, cx);
8270 });
8271 }
8272
8273 pub fn move_to_start_of_paragraph(
8274 &mut self,
8275 _: &MoveToStartOfParagraph,
8276 cx: &mut ViewContext<Self>,
8277 ) {
8278 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8279 cx.propagate();
8280 return;
8281 }
8282
8283 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8284 s.move_with(|map, selection| {
8285 selection.collapse_to(
8286 movement::start_of_paragraph(map, selection.head(), 1),
8287 SelectionGoal::None,
8288 )
8289 });
8290 })
8291 }
8292
8293 pub fn move_to_end_of_paragraph(
8294 &mut self,
8295 _: &MoveToEndOfParagraph,
8296 cx: &mut ViewContext<Self>,
8297 ) {
8298 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8299 cx.propagate();
8300 return;
8301 }
8302
8303 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8304 s.move_with(|map, selection| {
8305 selection.collapse_to(
8306 movement::end_of_paragraph(map, selection.head(), 1),
8307 SelectionGoal::None,
8308 )
8309 });
8310 })
8311 }
8312
8313 pub fn select_to_start_of_paragraph(
8314 &mut self,
8315 _: &SelectToStartOfParagraph,
8316 cx: &mut ViewContext<Self>,
8317 ) {
8318 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8319 cx.propagate();
8320 return;
8321 }
8322
8323 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8324 s.move_heads_with(|map, head, _| {
8325 (
8326 movement::start_of_paragraph(map, head, 1),
8327 SelectionGoal::None,
8328 )
8329 });
8330 })
8331 }
8332
8333 pub fn select_to_end_of_paragraph(
8334 &mut self,
8335 _: &SelectToEndOfParagraph,
8336 cx: &mut ViewContext<Self>,
8337 ) {
8338 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8339 cx.propagate();
8340 return;
8341 }
8342
8343 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8344 s.move_heads_with(|map, head, _| {
8345 (
8346 movement::end_of_paragraph(map, head, 1),
8347 SelectionGoal::None,
8348 )
8349 });
8350 })
8351 }
8352
8353 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
8354 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8355 cx.propagate();
8356 return;
8357 }
8358
8359 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8360 s.select_ranges(vec![0..0]);
8361 });
8362 }
8363
8364 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
8365 let mut selection = self.selections.last::<Point>(cx);
8366 selection.set_head(Point::zero(), SelectionGoal::None);
8367
8368 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8369 s.select(vec![selection]);
8370 });
8371 }
8372
8373 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
8374 if matches!(self.mode, EditorMode::SingleLine { .. }) {
8375 cx.propagate();
8376 return;
8377 }
8378
8379 let cursor = self.buffer.read(cx).read(cx).len();
8380 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8381 s.select_ranges(vec![cursor..cursor])
8382 });
8383 }
8384
8385 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
8386 self.nav_history = nav_history;
8387 }
8388
8389 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
8390 self.nav_history.as_ref()
8391 }
8392
8393 fn push_to_nav_history(
8394 &mut self,
8395 cursor_anchor: Anchor,
8396 new_position: Option<Point>,
8397 cx: &mut ViewContext<Self>,
8398 ) {
8399 if let Some(nav_history) = self.nav_history.as_mut() {
8400 let buffer = self.buffer.read(cx).read(cx);
8401 let cursor_position = cursor_anchor.to_point(&buffer);
8402 let scroll_state = self.scroll_manager.anchor();
8403 let scroll_top_row = scroll_state.top_row(&buffer);
8404 drop(buffer);
8405
8406 if let Some(new_position) = new_position {
8407 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8408 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8409 return;
8410 }
8411 }
8412
8413 nav_history.push(
8414 Some(NavigationData {
8415 cursor_anchor,
8416 cursor_position,
8417 scroll_anchor: scroll_state,
8418 scroll_top_row,
8419 }),
8420 cx,
8421 );
8422 }
8423 }
8424
8425 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8426 let buffer = self.buffer.read(cx).snapshot(cx);
8427 let mut selection = self.selections.first::<usize>(cx);
8428 selection.set_head(buffer.len(), SelectionGoal::None);
8429 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8430 s.select(vec![selection]);
8431 });
8432 }
8433
8434 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8435 let end = self.buffer.read(cx).read(cx).len();
8436 self.change_selections(None, cx, |s| {
8437 s.select_ranges(vec![0..end]);
8438 });
8439 }
8440
8441 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8442 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8443 let mut selections = self.selections.all::<Point>(cx);
8444 let max_point = display_map.buffer_snapshot.max_point();
8445 for selection in &mut selections {
8446 let rows = selection.spanned_rows(true, &display_map);
8447 selection.start = Point::new(rows.start.0, 0);
8448 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8449 selection.reversed = false;
8450 }
8451 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8452 s.select(selections);
8453 });
8454 }
8455
8456 pub fn split_selection_into_lines(
8457 &mut self,
8458 _: &SplitSelectionIntoLines,
8459 cx: &mut ViewContext<Self>,
8460 ) {
8461 let mut to_unfold = Vec::new();
8462 let mut new_selection_ranges = Vec::new();
8463 {
8464 let selections = self.selections.all::<Point>(cx);
8465 let buffer = self.buffer.read(cx).read(cx);
8466 for selection in selections {
8467 for row in selection.start.row..selection.end.row {
8468 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8469 new_selection_ranges.push(cursor..cursor);
8470 }
8471 new_selection_ranges.push(selection.end..selection.end);
8472 to_unfold.push(selection.start..selection.end);
8473 }
8474 }
8475 self.unfold_ranges(&to_unfold, true, true, cx);
8476 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8477 s.select_ranges(new_selection_ranges);
8478 });
8479 }
8480
8481 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8482 self.add_selection(true, cx);
8483 }
8484
8485 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8486 self.add_selection(false, cx);
8487 }
8488
8489 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8490 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8491 let mut selections = self.selections.all::<Point>(cx);
8492 let text_layout_details = self.text_layout_details(cx);
8493 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8494 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8495 let range = oldest_selection.display_range(&display_map).sorted();
8496
8497 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8498 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8499 let positions = start_x.min(end_x)..start_x.max(end_x);
8500
8501 selections.clear();
8502 let mut stack = Vec::new();
8503 for row in range.start.row().0..=range.end.row().0 {
8504 if let Some(selection) = self.selections.build_columnar_selection(
8505 &display_map,
8506 DisplayRow(row),
8507 &positions,
8508 oldest_selection.reversed,
8509 &text_layout_details,
8510 ) {
8511 stack.push(selection.id);
8512 selections.push(selection);
8513 }
8514 }
8515
8516 if above {
8517 stack.reverse();
8518 }
8519
8520 AddSelectionsState { above, stack }
8521 });
8522
8523 let last_added_selection = *state.stack.last().unwrap();
8524 let mut new_selections = Vec::new();
8525 if above == state.above {
8526 let end_row = if above {
8527 DisplayRow(0)
8528 } else {
8529 display_map.max_point().row()
8530 };
8531
8532 'outer: for selection in selections {
8533 if selection.id == last_added_selection {
8534 let range = selection.display_range(&display_map).sorted();
8535 debug_assert_eq!(range.start.row(), range.end.row());
8536 let mut row = range.start.row();
8537 let positions =
8538 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8539 px(start)..px(end)
8540 } else {
8541 let start_x =
8542 display_map.x_for_display_point(range.start, &text_layout_details);
8543 let end_x =
8544 display_map.x_for_display_point(range.end, &text_layout_details);
8545 start_x.min(end_x)..start_x.max(end_x)
8546 };
8547
8548 while row != end_row {
8549 if above {
8550 row.0 -= 1;
8551 } else {
8552 row.0 += 1;
8553 }
8554
8555 if let Some(new_selection) = self.selections.build_columnar_selection(
8556 &display_map,
8557 row,
8558 &positions,
8559 selection.reversed,
8560 &text_layout_details,
8561 ) {
8562 state.stack.push(new_selection.id);
8563 if above {
8564 new_selections.push(new_selection);
8565 new_selections.push(selection);
8566 } else {
8567 new_selections.push(selection);
8568 new_selections.push(new_selection);
8569 }
8570
8571 continue 'outer;
8572 }
8573 }
8574 }
8575
8576 new_selections.push(selection);
8577 }
8578 } else {
8579 new_selections = selections;
8580 new_selections.retain(|s| s.id != last_added_selection);
8581 state.stack.pop();
8582 }
8583
8584 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8585 s.select(new_selections);
8586 });
8587 if state.stack.len() > 1 {
8588 self.add_selections_state = Some(state);
8589 }
8590 }
8591
8592 pub fn select_next_match_internal(
8593 &mut self,
8594 display_map: &DisplaySnapshot,
8595 replace_newest: bool,
8596 autoscroll: Option<Autoscroll>,
8597 cx: &mut ViewContext<Self>,
8598 ) -> Result<()> {
8599 fn select_next_match_ranges(
8600 this: &mut Editor,
8601 range: Range<usize>,
8602 replace_newest: bool,
8603 auto_scroll: Option<Autoscroll>,
8604 cx: &mut ViewContext<Editor>,
8605 ) {
8606 this.unfold_ranges(&[range.clone()], false, true, cx);
8607 this.change_selections(auto_scroll, cx, |s| {
8608 if replace_newest {
8609 s.delete(s.newest_anchor().id);
8610 }
8611 s.insert_range(range.clone());
8612 });
8613 }
8614
8615 let buffer = &display_map.buffer_snapshot;
8616 let mut selections = self.selections.all::<usize>(cx);
8617 if let Some(mut select_next_state) = self.select_next_state.take() {
8618 let query = &select_next_state.query;
8619 if !select_next_state.done {
8620 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8621 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8622 let mut next_selected_range = None;
8623
8624 let bytes_after_last_selection =
8625 buffer.bytes_in_range(last_selection.end..buffer.len());
8626 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8627 let query_matches = query
8628 .stream_find_iter(bytes_after_last_selection)
8629 .map(|result| (last_selection.end, result))
8630 .chain(
8631 query
8632 .stream_find_iter(bytes_before_first_selection)
8633 .map(|result| (0, result)),
8634 );
8635
8636 for (start_offset, query_match) in query_matches {
8637 let query_match = query_match.unwrap(); // can only fail due to I/O
8638 let offset_range =
8639 start_offset + query_match.start()..start_offset + query_match.end();
8640 let display_range = offset_range.start.to_display_point(display_map)
8641 ..offset_range.end.to_display_point(display_map);
8642
8643 if !select_next_state.wordwise
8644 || (!movement::is_inside_word(display_map, display_range.start)
8645 && !movement::is_inside_word(display_map, display_range.end))
8646 {
8647 // TODO: This is n^2, because we might check all the selections
8648 if !selections
8649 .iter()
8650 .any(|selection| selection.range().overlaps(&offset_range))
8651 {
8652 next_selected_range = Some(offset_range);
8653 break;
8654 }
8655 }
8656 }
8657
8658 if let Some(next_selected_range) = next_selected_range {
8659 select_next_match_ranges(
8660 self,
8661 next_selected_range,
8662 replace_newest,
8663 autoscroll,
8664 cx,
8665 );
8666 } else {
8667 select_next_state.done = true;
8668 }
8669 }
8670
8671 self.select_next_state = Some(select_next_state);
8672 } else {
8673 let mut only_carets = true;
8674 let mut same_text_selected = true;
8675 let mut selected_text = None;
8676
8677 let mut selections_iter = selections.iter().peekable();
8678 while let Some(selection) = selections_iter.next() {
8679 if selection.start != selection.end {
8680 only_carets = false;
8681 }
8682
8683 if same_text_selected {
8684 if selected_text.is_none() {
8685 selected_text =
8686 Some(buffer.text_for_range(selection.range()).collect::<String>());
8687 }
8688
8689 if let Some(next_selection) = selections_iter.peek() {
8690 if next_selection.range().len() == selection.range().len() {
8691 let next_selected_text = buffer
8692 .text_for_range(next_selection.range())
8693 .collect::<String>();
8694 if Some(next_selected_text) != selected_text {
8695 same_text_selected = false;
8696 selected_text = None;
8697 }
8698 } else {
8699 same_text_selected = false;
8700 selected_text = None;
8701 }
8702 }
8703 }
8704 }
8705
8706 if only_carets {
8707 for selection in &mut selections {
8708 let word_range = movement::surrounding_word(
8709 display_map,
8710 selection.start.to_display_point(display_map),
8711 );
8712 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8713 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8714 selection.goal = SelectionGoal::None;
8715 selection.reversed = false;
8716 select_next_match_ranges(
8717 self,
8718 selection.start..selection.end,
8719 replace_newest,
8720 autoscroll,
8721 cx,
8722 );
8723 }
8724
8725 if selections.len() == 1 {
8726 let selection = selections
8727 .last()
8728 .expect("ensured that there's only one selection");
8729 let query = buffer
8730 .text_for_range(selection.start..selection.end)
8731 .collect::<String>();
8732 let is_empty = query.is_empty();
8733 let select_state = SelectNextState {
8734 query: AhoCorasick::new(&[query])?,
8735 wordwise: true,
8736 done: is_empty,
8737 };
8738 self.select_next_state = Some(select_state);
8739 } else {
8740 self.select_next_state = None;
8741 }
8742 } else if let Some(selected_text) = selected_text {
8743 self.select_next_state = Some(SelectNextState {
8744 query: AhoCorasick::new(&[selected_text])?,
8745 wordwise: false,
8746 done: false,
8747 });
8748 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8749 }
8750 }
8751 Ok(())
8752 }
8753
8754 pub fn select_all_matches(
8755 &mut self,
8756 _action: &SelectAllMatches,
8757 cx: &mut ViewContext<Self>,
8758 ) -> Result<()> {
8759 self.push_to_selection_history();
8760 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8761
8762 self.select_next_match_internal(&display_map, false, None, cx)?;
8763 let Some(select_next_state) = self.select_next_state.as_mut() else {
8764 return Ok(());
8765 };
8766 if select_next_state.done {
8767 return Ok(());
8768 }
8769
8770 let mut new_selections = self.selections.all::<usize>(cx);
8771
8772 let buffer = &display_map.buffer_snapshot;
8773 let query_matches = select_next_state
8774 .query
8775 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8776
8777 for query_match in query_matches {
8778 let query_match = query_match.unwrap(); // can only fail due to I/O
8779 let offset_range = query_match.start()..query_match.end();
8780 let display_range = offset_range.start.to_display_point(&display_map)
8781 ..offset_range.end.to_display_point(&display_map);
8782
8783 if !select_next_state.wordwise
8784 || (!movement::is_inside_word(&display_map, display_range.start)
8785 && !movement::is_inside_word(&display_map, display_range.end))
8786 {
8787 self.selections.change_with(cx, |selections| {
8788 new_selections.push(Selection {
8789 id: selections.new_selection_id(),
8790 start: offset_range.start,
8791 end: offset_range.end,
8792 reversed: false,
8793 goal: SelectionGoal::None,
8794 });
8795 });
8796 }
8797 }
8798
8799 new_selections.sort_by_key(|selection| selection.start);
8800 let mut ix = 0;
8801 while ix + 1 < new_selections.len() {
8802 let current_selection = &new_selections[ix];
8803 let next_selection = &new_selections[ix + 1];
8804 if current_selection.range().overlaps(&next_selection.range()) {
8805 if current_selection.id < next_selection.id {
8806 new_selections.remove(ix + 1);
8807 } else {
8808 new_selections.remove(ix);
8809 }
8810 } else {
8811 ix += 1;
8812 }
8813 }
8814
8815 select_next_state.done = true;
8816 self.unfold_ranges(
8817 &new_selections
8818 .iter()
8819 .map(|selection| selection.range())
8820 .collect::<Vec<_>>(),
8821 false,
8822 false,
8823 cx,
8824 );
8825 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8826 selections.select(new_selections)
8827 });
8828
8829 Ok(())
8830 }
8831
8832 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8833 self.push_to_selection_history();
8834 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8835 self.select_next_match_internal(
8836 &display_map,
8837 action.replace_newest,
8838 Some(Autoscroll::newest()),
8839 cx,
8840 )?;
8841 Ok(())
8842 }
8843
8844 pub fn select_previous(
8845 &mut self,
8846 action: &SelectPrevious,
8847 cx: &mut ViewContext<Self>,
8848 ) -> Result<()> {
8849 self.push_to_selection_history();
8850 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8851 let buffer = &display_map.buffer_snapshot;
8852 let mut selections = self.selections.all::<usize>(cx);
8853 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8854 let query = &select_prev_state.query;
8855 if !select_prev_state.done {
8856 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8857 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8858 let mut next_selected_range = None;
8859 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8860 let bytes_before_last_selection =
8861 buffer.reversed_bytes_in_range(0..last_selection.start);
8862 let bytes_after_first_selection =
8863 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8864 let query_matches = query
8865 .stream_find_iter(bytes_before_last_selection)
8866 .map(|result| (last_selection.start, result))
8867 .chain(
8868 query
8869 .stream_find_iter(bytes_after_first_selection)
8870 .map(|result| (buffer.len(), result)),
8871 );
8872 for (end_offset, query_match) in query_matches {
8873 let query_match = query_match.unwrap(); // can only fail due to I/O
8874 let offset_range =
8875 end_offset - query_match.end()..end_offset - query_match.start();
8876 let display_range = offset_range.start.to_display_point(&display_map)
8877 ..offset_range.end.to_display_point(&display_map);
8878
8879 if !select_prev_state.wordwise
8880 || (!movement::is_inside_word(&display_map, display_range.start)
8881 && !movement::is_inside_word(&display_map, display_range.end))
8882 {
8883 next_selected_range = Some(offset_range);
8884 break;
8885 }
8886 }
8887
8888 if let Some(next_selected_range) = next_selected_range {
8889 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8890 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8891 if action.replace_newest {
8892 s.delete(s.newest_anchor().id);
8893 }
8894 s.insert_range(next_selected_range);
8895 });
8896 } else {
8897 select_prev_state.done = true;
8898 }
8899 }
8900
8901 self.select_prev_state = Some(select_prev_state);
8902 } else {
8903 let mut only_carets = true;
8904 let mut same_text_selected = true;
8905 let mut selected_text = None;
8906
8907 let mut selections_iter = selections.iter().peekable();
8908 while let Some(selection) = selections_iter.next() {
8909 if selection.start != selection.end {
8910 only_carets = false;
8911 }
8912
8913 if same_text_selected {
8914 if selected_text.is_none() {
8915 selected_text =
8916 Some(buffer.text_for_range(selection.range()).collect::<String>());
8917 }
8918
8919 if let Some(next_selection) = selections_iter.peek() {
8920 if next_selection.range().len() == selection.range().len() {
8921 let next_selected_text = buffer
8922 .text_for_range(next_selection.range())
8923 .collect::<String>();
8924 if Some(next_selected_text) != selected_text {
8925 same_text_selected = false;
8926 selected_text = None;
8927 }
8928 } else {
8929 same_text_selected = false;
8930 selected_text = None;
8931 }
8932 }
8933 }
8934 }
8935
8936 if only_carets {
8937 for selection in &mut selections {
8938 let word_range = movement::surrounding_word(
8939 &display_map,
8940 selection.start.to_display_point(&display_map),
8941 );
8942 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8943 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8944 selection.goal = SelectionGoal::None;
8945 selection.reversed = false;
8946 }
8947 if selections.len() == 1 {
8948 let selection = selections
8949 .last()
8950 .expect("ensured that there's only one selection");
8951 let query = buffer
8952 .text_for_range(selection.start..selection.end)
8953 .collect::<String>();
8954 let is_empty = query.is_empty();
8955 let select_state = SelectNextState {
8956 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8957 wordwise: true,
8958 done: is_empty,
8959 };
8960 self.select_prev_state = Some(select_state);
8961 } else {
8962 self.select_prev_state = None;
8963 }
8964
8965 self.unfold_ranges(
8966 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8967 false,
8968 true,
8969 cx,
8970 );
8971 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8972 s.select(selections);
8973 });
8974 } else if let Some(selected_text) = selected_text {
8975 self.select_prev_state = Some(SelectNextState {
8976 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8977 wordwise: false,
8978 done: false,
8979 });
8980 self.select_previous(action, cx)?;
8981 }
8982 }
8983 Ok(())
8984 }
8985
8986 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8987 if self.read_only(cx) {
8988 return;
8989 }
8990 let text_layout_details = &self.text_layout_details(cx);
8991 self.transact(cx, |this, cx| {
8992 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8993 let mut edits = Vec::new();
8994 let mut selection_edit_ranges = Vec::new();
8995 let mut last_toggled_row = None;
8996 let snapshot = this.buffer.read(cx).read(cx);
8997 let empty_str: Arc<str> = Arc::default();
8998 let mut suffixes_inserted = Vec::new();
8999 let ignore_indent = action.ignore_indent;
9000
9001 fn comment_prefix_range(
9002 snapshot: &MultiBufferSnapshot,
9003 row: MultiBufferRow,
9004 comment_prefix: &str,
9005 comment_prefix_whitespace: &str,
9006 ignore_indent: bool,
9007 ) -> Range<Point> {
9008 let indent_size = if ignore_indent {
9009 0
9010 } else {
9011 snapshot.indent_size_for_line(row).len
9012 };
9013
9014 let start = Point::new(row.0, indent_size);
9015
9016 let mut line_bytes = snapshot
9017 .bytes_in_range(start..snapshot.max_point())
9018 .flatten()
9019 .copied();
9020
9021 // If this line currently begins with the line comment prefix, then record
9022 // the range containing the prefix.
9023 if line_bytes
9024 .by_ref()
9025 .take(comment_prefix.len())
9026 .eq(comment_prefix.bytes())
9027 {
9028 // Include any whitespace that matches the comment prefix.
9029 let matching_whitespace_len = line_bytes
9030 .zip(comment_prefix_whitespace.bytes())
9031 .take_while(|(a, b)| a == b)
9032 .count() as u32;
9033 let end = Point::new(
9034 start.row,
9035 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
9036 );
9037 start..end
9038 } else {
9039 start..start
9040 }
9041 }
9042
9043 fn comment_suffix_range(
9044 snapshot: &MultiBufferSnapshot,
9045 row: MultiBufferRow,
9046 comment_suffix: &str,
9047 comment_suffix_has_leading_space: bool,
9048 ) -> Range<Point> {
9049 let end = Point::new(row.0, snapshot.line_len(row));
9050 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
9051
9052 let mut line_end_bytes = snapshot
9053 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
9054 .flatten()
9055 .copied();
9056
9057 let leading_space_len = if suffix_start_column > 0
9058 && line_end_bytes.next() == Some(b' ')
9059 && comment_suffix_has_leading_space
9060 {
9061 1
9062 } else {
9063 0
9064 };
9065
9066 // If this line currently begins with the line comment prefix, then record
9067 // the range containing the prefix.
9068 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
9069 let start = Point::new(end.row, suffix_start_column - leading_space_len);
9070 start..end
9071 } else {
9072 end..end
9073 }
9074 }
9075
9076 // TODO: Handle selections that cross excerpts
9077 for selection in &mut selections {
9078 let start_column = snapshot
9079 .indent_size_for_line(MultiBufferRow(selection.start.row))
9080 .len;
9081 let language = if let Some(language) =
9082 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
9083 {
9084 language
9085 } else {
9086 continue;
9087 };
9088
9089 selection_edit_ranges.clear();
9090
9091 // If multiple selections contain a given row, avoid processing that
9092 // row more than once.
9093 let mut start_row = MultiBufferRow(selection.start.row);
9094 if last_toggled_row == Some(start_row) {
9095 start_row = start_row.next_row();
9096 }
9097 let end_row =
9098 if selection.end.row > selection.start.row && selection.end.column == 0 {
9099 MultiBufferRow(selection.end.row - 1)
9100 } else {
9101 MultiBufferRow(selection.end.row)
9102 };
9103 last_toggled_row = Some(end_row);
9104
9105 if start_row > end_row {
9106 continue;
9107 }
9108
9109 // If the language has line comments, toggle those.
9110 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
9111
9112 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
9113 if ignore_indent {
9114 full_comment_prefixes = full_comment_prefixes
9115 .into_iter()
9116 .map(|s| Arc::from(s.trim_end()))
9117 .collect();
9118 }
9119
9120 if !full_comment_prefixes.is_empty() {
9121 let first_prefix = full_comment_prefixes
9122 .first()
9123 .expect("prefixes is non-empty");
9124 let prefix_trimmed_lengths = full_comment_prefixes
9125 .iter()
9126 .map(|p| p.trim_end_matches(' ').len())
9127 .collect::<SmallVec<[usize; 4]>>();
9128
9129 let mut all_selection_lines_are_comments = true;
9130
9131 for row in start_row.0..=end_row.0 {
9132 let row = MultiBufferRow(row);
9133 if start_row < end_row && snapshot.is_line_blank(row) {
9134 continue;
9135 }
9136
9137 let prefix_range = full_comment_prefixes
9138 .iter()
9139 .zip(prefix_trimmed_lengths.iter().copied())
9140 .map(|(prefix, trimmed_prefix_len)| {
9141 comment_prefix_range(
9142 snapshot.deref(),
9143 row,
9144 &prefix[..trimmed_prefix_len],
9145 &prefix[trimmed_prefix_len..],
9146 ignore_indent,
9147 )
9148 })
9149 .max_by_key(|range| range.end.column - range.start.column)
9150 .expect("prefixes is non-empty");
9151
9152 if prefix_range.is_empty() {
9153 all_selection_lines_are_comments = false;
9154 }
9155
9156 selection_edit_ranges.push(prefix_range);
9157 }
9158
9159 if all_selection_lines_are_comments {
9160 edits.extend(
9161 selection_edit_ranges
9162 .iter()
9163 .cloned()
9164 .map(|range| (range, empty_str.clone())),
9165 );
9166 } else {
9167 let min_column = selection_edit_ranges
9168 .iter()
9169 .map(|range| range.start.column)
9170 .min()
9171 .unwrap_or(0);
9172 edits.extend(selection_edit_ranges.iter().map(|range| {
9173 let position = Point::new(range.start.row, min_column);
9174 (position..position, first_prefix.clone())
9175 }));
9176 }
9177 } else if let Some((full_comment_prefix, comment_suffix)) =
9178 language.block_comment_delimiters()
9179 {
9180 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
9181 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
9182 let prefix_range = comment_prefix_range(
9183 snapshot.deref(),
9184 start_row,
9185 comment_prefix,
9186 comment_prefix_whitespace,
9187 ignore_indent,
9188 );
9189 let suffix_range = comment_suffix_range(
9190 snapshot.deref(),
9191 end_row,
9192 comment_suffix.trim_start_matches(' '),
9193 comment_suffix.starts_with(' '),
9194 );
9195
9196 if prefix_range.is_empty() || suffix_range.is_empty() {
9197 edits.push((
9198 prefix_range.start..prefix_range.start,
9199 full_comment_prefix.clone(),
9200 ));
9201 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
9202 suffixes_inserted.push((end_row, comment_suffix.len()));
9203 } else {
9204 edits.push((prefix_range, empty_str.clone()));
9205 edits.push((suffix_range, empty_str.clone()));
9206 }
9207 } else {
9208 continue;
9209 }
9210 }
9211
9212 drop(snapshot);
9213 this.buffer.update(cx, |buffer, cx| {
9214 buffer.edit(edits, None, cx);
9215 });
9216
9217 // Adjust selections so that they end before any comment suffixes that
9218 // were inserted.
9219 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
9220 let mut selections = this.selections.all::<Point>(cx);
9221 let snapshot = this.buffer.read(cx).read(cx);
9222 for selection in &mut selections {
9223 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
9224 match row.cmp(&MultiBufferRow(selection.end.row)) {
9225 Ordering::Less => {
9226 suffixes_inserted.next();
9227 continue;
9228 }
9229 Ordering::Greater => break,
9230 Ordering::Equal => {
9231 if selection.end.column == snapshot.line_len(row) {
9232 if selection.is_empty() {
9233 selection.start.column -= suffix_len as u32;
9234 }
9235 selection.end.column -= suffix_len as u32;
9236 }
9237 break;
9238 }
9239 }
9240 }
9241 }
9242
9243 drop(snapshot);
9244 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
9245
9246 let selections = this.selections.all::<Point>(cx);
9247 let selections_on_single_row = selections.windows(2).all(|selections| {
9248 selections[0].start.row == selections[1].start.row
9249 && selections[0].end.row == selections[1].end.row
9250 && selections[0].start.row == selections[0].end.row
9251 });
9252 let selections_selecting = selections
9253 .iter()
9254 .any(|selection| selection.start != selection.end);
9255 let advance_downwards = action.advance_downwards
9256 && selections_on_single_row
9257 && !selections_selecting
9258 && !matches!(this.mode, EditorMode::SingleLine { .. });
9259
9260 if advance_downwards {
9261 let snapshot = this.buffer.read(cx).snapshot(cx);
9262
9263 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
9264 s.move_cursors_with(|display_snapshot, display_point, _| {
9265 let mut point = display_point.to_point(display_snapshot);
9266 point.row += 1;
9267 point = snapshot.clip_point(point, Bias::Left);
9268 let display_point = point.to_display_point(display_snapshot);
9269 let goal = SelectionGoal::HorizontalPosition(
9270 display_snapshot
9271 .x_for_display_point(display_point, text_layout_details)
9272 .into(),
9273 );
9274 (display_point, goal)
9275 })
9276 });
9277 }
9278 });
9279 }
9280
9281 pub fn select_enclosing_symbol(
9282 &mut self,
9283 _: &SelectEnclosingSymbol,
9284 cx: &mut ViewContext<Self>,
9285 ) {
9286 let buffer = self.buffer.read(cx).snapshot(cx);
9287 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9288
9289 fn update_selection(
9290 selection: &Selection<usize>,
9291 buffer_snap: &MultiBufferSnapshot,
9292 ) -> Option<Selection<usize>> {
9293 let cursor = selection.head();
9294 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
9295 for symbol in symbols.iter().rev() {
9296 let start = symbol.range.start.to_offset(buffer_snap);
9297 let end = symbol.range.end.to_offset(buffer_snap);
9298 let new_range = start..end;
9299 if start < selection.start || end > selection.end {
9300 return Some(Selection {
9301 id: selection.id,
9302 start: new_range.start,
9303 end: new_range.end,
9304 goal: SelectionGoal::None,
9305 reversed: selection.reversed,
9306 });
9307 }
9308 }
9309 None
9310 }
9311
9312 let mut selected_larger_symbol = false;
9313 let new_selections = old_selections
9314 .iter()
9315 .map(|selection| match update_selection(selection, &buffer) {
9316 Some(new_selection) => {
9317 if new_selection.range() != selection.range() {
9318 selected_larger_symbol = true;
9319 }
9320 new_selection
9321 }
9322 None => selection.clone(),
9323 })
9324 .collect::<Vec<_>>();
9325
9326 if selected_larger_symbol {
9327 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9328 s.select(new_selections);
9329 });
9330 }
9331 }
9332
9333 pub fn select_larger_syntax_node(
9334 &mut self,
9335 _: &SelectLargerSyntaxNode,
9336 cx: &mut ViewContext<Self>,
9337 ) {
9338 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
9339 let buffer = self.buffer.read(cx).snapshot(cx);
9340 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
9341
9342 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9343 let mut selected_larger_node = false;
9344 let new_selections = old_selections
9345 .iter()
9346 .map(|selection| {
9347 let old_range = selection.start..selection.end;
9348 let mut new_range = old_range.clone();
9349 while let Some(containing_range) =
9350 buffer.range_for_syntax_ancestor(new_range.clone())
9351 {
9352 new_range = containing_range;
9353 if !display_map.intersects_fold(new_range.start)
9354 && !display_map.intersects_fold(new_range.end)
9355 {
9356 break;
9357 }
9358 }
9359
9360 selected_larger_node |= new_range != old_range;
9361 Selection {
9362 id: selection.id,
9363 start: new_range.start,
9364 end: new_range.end,
9365 goal: SelectionGoal::None,
9366 reversed: selection.reversed,
9367 }
9368 })
9369 .collect::<Vec<_>>();
9370
9371 if selected_larger_node {
9372 stack.push(old_selections);
9373 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9374 s.select(new_selections);
9375 });
9376 }
9377 self.select_larger_syntax_node_stack = stack;
9378 }
9379
9380 pub fn select_smaller_syntax_node(
9381 &mut self,
9382 _: &SelectSmallerSyntaxNode,
9383 cx: &mut ViewContext<Self>,
9384 ) {
9385 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
9386 if let Some(selections) = stack.pop() {
9387 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9388 s.select(selections.to_vec());
9389 });
9390 }
9391 self.select_larger_syntax_node_stack = stack;
9392 }
9393
9394 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9395 if !EditorSettings::get_global(cx).gutter.runnables {
9396 self.clear_tasks();
9397 return Task::ready(());
9398 }
9399 let project = self.project.as_ref().map(Model::downgrade);
9400 cx.spawn(|this, mut cx| async move {
9401 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9402 let Some(project) = project.and_then(|p| p.upgrade()) else {
9403 return;
9404 };
9405 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9406 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9407 }) else {
9408 return;
9409 };
9410
9411 let hide_runnables = project
9412 .update(&mut cx, |project, cx| {
9413 // Do not display any test indicators in non-dev server remote projects.
9414 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9415 })
9416 .unwrap_or(true);
9417 if hide_runnables {
9418 return;
9419 }
9420 let new_rows =
9421 cx.background_executor()
9422 .spawn({
9423 let snapshot = display_snapshot.clone();
9424 async move {
9425 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9426 }
9427 })
9428 .await;
9429 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9430
9431 this.update(&mut cx, |this, _| {
9432 this.clear_tasks();
9433 for (key, value) in rows {
9434 this.insert_tasks(key, value);
9435 }
9436 })
9437 .ok();
9438 })
9439 }
9440 fn fetch_runnable_ranges(
9441 snapshot: &DisplaySnapshot,
9442 range: Range<Anchor>,
9443 ) -> Vec<language::RunnableRange> {
9444 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9445 }
9446
9447 fn runnable_rows(
9448 project: Model<Project>,
9449 snapshot: DisplaySnapshot,
9450 runnable_ranges: Vec<RunnableRange>,
9451 mut cx: AsyncWindowContext,
9452 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9453 runnable_ranges
9454 .into_iter()
9455 .filter_map(|mut runnable| {
9456 let tasks = cx
9457 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9458 .ok()?;
9459 if tasks.is_empty() {
9460 return None;
9461 }
9462
9463 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9464
9465 let row = snapshot
9466 .buffer_snapshot
9467 .buffer_line_for_row(MultiBufferRow(point.row))?
9468 .1
9469 .start
9470 .row;
9471
9472 let context_range =
9473 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9474 Some((
9475 (runnable.buffer_id, row),
9476 RunnableTasks {
9477 templates: tasks,
9478 offset: MultiBufferOffset(runnable.run_range.start),
9479 context_range,
9480 column: point.column,
9481 extra_variables: runnable.extra_captures,
9482 },
9483 ))
9484 })
9485 .collect()
9486 }
9487
9488 fn templates_with_tags(
9489 project: &Model<Project>,
9490 runnable: &mut Runnable,
9491 cx: &WindowContext<'_>,
9492 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9493 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9494 let (worktree_id, file) = project
9495 .buffer_for_id(runnable.buffer, cx)
9496 .and_then(|buffer| buffer.read(cx).file())
9497 .map(|file| (file.worktree_id(cx), file.clone()))
9498 .unzip();
9499
9500 (
9501 project.task_store().read(cx).task_inventory().cloned(),
9502 worktree_id,
9503 file,
9504 )
9505 });
9506
9507 let tags = mem::take(&mut runnable.tags);
9508 let mut tags: Vec<_> = tags
9509 .into_iter()
9510 .flat_map(|tag| {
9511 let tag = tag.0.clone();
9512 inventory
9513 .as_ref()
9514 .into_iter()
9515 .flat_map(|inventory| {
9516 inventory.read(cx).list_tasks(
9517 file.clone(),
9518 Some(runnable.language.clone()),
9519 worktree_id,
9520 cx,
9521 )
9522 })
9523 .filter(move |(_, template)| {
9524 template.tags.iter().any(|source_tag| source_tag == &tag)
9525 })
9526 })
9527 .sorted_by_key(|(kind, _)| kind.to_owned())
9528 .collect();
9529 if let Some((leading_tag_source, _)) = tags.first() {
9530 // Strongest source wins; if we have worktree tag binding, prefer that to
9531 // global and language bindings;
9532 // if we have a global binding, prefer that to language binding.
9533 let first_mismatch = tags
9534 .iter()
9535 .position(|(tag_source, _)| tag_source != leading_tag_source);
9536 if let Some(index) = first_mismatch {
9537 tags.truncate(index);
9538 }
9539 }
9540
9541 tags
9542 }
9543
9544 pub fn move_to_enclosing_bracket(
9545 &mut self,
9546 _: &MoveToEnclosingBracket,
9547 cx: &mut ViewContext<Self>,
9548 ) {
9549 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9550 s.move_offsets_with(|snapshot, selection| {
9551 let Some(enclosing_bracket_ranges) =
9552 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9553 else {
9554 return;
9555 };
9556
9557 let mut best_length = usize::MAX;
9558 let mut best_inside = false;
9559 let mut best_in_bracket_range = false;
9560 let mut best_destination = None;
9561 for (open, close) in enclosing_bracket_ranges {
9562 let close = close.to_inclusive();
9563 let length = close.end() - open.start;
9564 let inside = selection.start >= open.end && selection.end <= *close.start();
9565 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9566 || close.contains(&selection.head());
9567
9568 // If best is next to a bracket and current isn't, skip
9569 if !in_bracket_range && best_in_bracket_range {
9570 continue;
9571 }
9572
9573 // Prefer smaller lengths unless best is inside and current isn't
9574 if length > best_length && (best_inside || !inside) {
9575 continue;
9576 }
9577
9578 best_length = length;
9579 best_inside = inside;
9580 best_in_bracket_range = in_bracket_range;
9581 best_destination = Some(
9582 if close.contains(&selection.start) && close.contains(&selection.end) {
9583 if inside {
9584 open.end
9585 } else {
9586 open.start
9587 }
9588 } else if inside {
9589 *close.start()
9590 } else {
9591 *close.end()
9592 },
9593 );
9594 }
9595
9596 if let Some(destination) = best_destination {
9597 selection.collapse_to(destination, SelectionGoal::None);
9598 }
9599 })
9600 });
9601 }
9602
9603 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9604 self.end_selection(cx);
9605 self.selection_history.mode = SelectionHistoryMode::Undoing;
9606 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9607 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9608 self.select_next_state = entry.select_next_state;
9609 self.select_prev_state = entry.select_prev_state;
9610 self.add_selections_state = entry.add_selections_state;
9611 self.request_autoscroll(Autoscroll::newest(), cx);
9612 }
9613 self.selection_history.mode = SelectionHistoryMode::Normal;
9614 }
9615
9616 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9617 self.end_selection(cx);
9618 self.selection_history.mode = SelectionHistoryMode::Redoing;
9619 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9620 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9621 self.select_next_state = entry.select_next_state;
9622 self.select_prev_state = entry.select_prev_state;
9623 self.add_selections_state = entry.add_selections_state;
9624 self.request_autoscroll(Autoscroll::newest(), cx);
9625 }
9626 self.selection_history.mode = SelectionHistoryMode::Normal;
9627 }
9628
9629 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9630 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9631 }
9632
9633 pub fn expand_excerpts_down(
9634 &mut self,
9635 action: &ExpandExcerptsDown,
9636 cx: &mut ViewContext<Self>,
9637 ) {
9638 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9639 }
9640
9641 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9642 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9643 }
9644
9645 pub fn expand_excerpts_for_direction(
9646 &mut self,
9647 lines: u32,
9648 direction: ExpandExcerptDirection,
9649 cx: &mut ViewContext<Self>,
9650 ) {
9651 let selections = self.selections.disjoint_anchors();
9652
9653 let lines = if lines == 0 {
9654 EditorSettings::get_global(cx).expand_excerpt_lines
9655 } else {
9656 lines
9657 };
9658
9659 self.buffer.update(cx, |buffer, cx| {
9660 buffer.expand_excerpts(
9661 selections
9662 .iter()
9663 .map(|selection| selection.head().excerpt_id)
9664 .dedup(),
9665 lines,
9666 direction,
9667 cx,
9668 )
9669 })
9670 }
9671
9672 pub fn expand_excerpt(
9673 &mut self,
9674 excerpt: ExcerptId,
9675 direction: ExpandExcerptDirection,
9676 cx: &mut ViewContext<Self>,
9677 ) {
9678 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9679 self.buffer.update(cx, |buffer, cx| {
9680 buffer.expand_excerpts([excerpt], lines, direction, cx)
9681 })
9682 }
9683
9684 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9685 self.go_to_diagnostic_impl(Direction::Next, cx)
9686 }
9687
9688 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9689 self.go_to_diagnostic_impl(Direction::Prev, cx)
9690 }
9691
9692 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9693 let buffer = self.buffer.read(cx).snapshot(cx);
9694 let selection = self.selections.newest::<usize>(cx);
9695
9696 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9697 if direction == Direction::Next {
9698 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9699 let (group_id, jump_to) = popover.activation_info();
9700 if self.activate_diagnostics(group_id, cx) {
9701 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9702 let mut new_selection = s.newest_anchor().clone();
9703 new_selection.collapse_to(jump_to, SelectionGoal::None);
9704 s.select_anchors(vec![new_selection.clone()]);
9705 });
9706 }
9707 return;
9708 }
9709 }
9710
9711 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9712 active_diagnostics
9713 .primary_range
9714 .to_offset(&buffer)
9715 .to_inclusive()
9716 });
9717 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9718 if active_primary_range.contains(&selection.head()) {
9719 *active_primary_range.start()
9720 } else {
9721 selection.head()
9722 }
9723 } else {
9724 selection.head()
9725 };
9726 let snapshot = self.snapshot(cx);
9727 loop {
9728 let diagnostics = if direction == Direction::Prev {
9729 buffer.diagnostics_in_range::<_, usize>(0..search_start, true)
9730 } else {
9731 buffer.diagnostics_in_range::<_, usize>(search_start..buffer.len(), false)
9732 }
9733 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9734 let group = diagnostics
9735 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9736 // be sorted in a stable way
9737 // skip until we are at current active diagnostic, if it exists
9738 .skip_while(|entry| {
9739 (match direction {
9740 Direction::Prev => entry.range.start >= search_start,
9741 Direction::Next => entry.range.start <= search_start,
9742 }) && self
9743 .active_diagnostics
9744 .as_ref()
9745 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9746 })
9747 .find_map(|entry| {
9748 if entry.diagnostic.is_primary
9749 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9750 && !entry.range.is_empty()
9751 // if we match with the active diagnostic, skip it
9752 && Some(entry.diagnostic.group_id)
9753 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9754 {
9755 Some((entry.range, entry.diagnostic.group_id))
9756 } else {
9757 None
9758 }
9759 });
9760
9761 if let Some((primary_range, group_id)) = group {
9762 if self.activate_diagnostics(group_id, cx) {
9763 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9764 s.select(vec![Selection {
9765 id: selection.id,
9766 start: primary_range.start,
9767 end: primary_range.start,
9768 reversed: false,
9769 goal: SelectionGoal::None,
9770 }]);
9771 });
9772 }
9773 break;
9774 } else {
9775 // Cycle around to the start of the buffer, potentially moving back to the start of
9776 // the currently active diagnostic.
9777 active_primary_range.take();
9778 if direction == Direction::Prev {
9779 if search_start == buffer.len() {
9780 break;
9781 } else {
9782 search_start = buffer.len();
9783 }
9784 } else if search_start == 0 {
9785 break;
9786 } else {
9787 search_start = 0;
9788 }
9789 }
9790 }
9791 }
9792
9793 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9794 let snapshot = self
9795 .display_map
9796 .update(cx, |display_map, cx| display_map.snapshot(cx));
9797 let selection = self.selections.newest::<Point>(cx);
9798 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9799 }
9800
9801 fn go_to_hunk_after_position(
9802 &mut self,
9803 snapshot: &DisplaySnapshot,
9804 position: Point,
9805 cx: &mut ViewContext<'_, Editor>,
9806 ) -> Option<MultiBufferDiffHunk> {
9807 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9808 snapshot,
9809 position,
9810 false,
9811 snapshot
9812 .buffer_snapshot
9813 .git_diff_hunks_in_range(MultiBufferRow(position.row + 1)..MultiBufferRow::MAX),
9814 cx,
9815 ) {
9816 return Some(hunk);
9817 }
9818
9819 let wrapped_point = Point::zero();
9820 self.go_to_next_hunk_in_direction(
9821 snapshot,
9822 wrapped_point,
9823 true,
9824 snapshot.buffer_snapshot.git_diff_hunks_in_range(
9825 MultiBufferRow(wrapped_point.row + 1)..MultiBufferRow::MAX,
9826 ),
9827 cx,
9828 )
9829 }
9830
9831 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9832 let snapshot = self
9833 .display_map
9834 .update(cx, |display_map, cx| display_map.snapshot(cx));
9835 let selection = self.selections.newest::<Point>(cx);
9836
9837 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9838 }
9839
9840 fn go_to_hunk_before_position(
9841 &mut self,
9842 snapshot: &DisplaySnapshot,
9843 position: Point,
9844 cx: &mut ViewContext<'_, Editor>,
9845 ) -> Option<MultiBufferDiffHunk> {
9846 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9847 snapshot,
9848 position,
9849 false,
9850 snapshot
9851 .buffer_snapshot
9852 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(position.row)),
9853 cx,
9854 ) {
9855 return Some(hunk);
9856 }
9857
9858 let wrapped_point = snapshot.buffer_snapshot.max_point();
9859 self.go_to_next_hunk_in_direction(
9860 snapshot,
9861 wrapped_point,
9862 true,
9863 snapshot
9864 .buffer_snapshot
9865 .git_diff_hunks_in_range_rev(MultiBufferRow(0)..MultiBufferRow(wrapped_point.row)),
9866 cx,
9867 )
9868 }
9869
9870 fn go_to_next_hunk_in_direction(
9871 &mut self,
9872 snapshot: &DisplaySnapshot,
9873 initial_point: Point,
9874 is_wrapped: bool,
9875 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9876 cx: &mut ViewContext<Editor>,
9877 ) -> Option<MultiBufferDiffHunk> {
9878 let display_point = initial_point.to_display_point(snapshot);
9879 let mut hunks = hunks
9880 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9881 .filter(|(display_hunk, _)| {
9882 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9883 })
9884 .dedup();
9885
9886 if let Some((display_hunk, hunk)) = hunks.next() {
9887 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9888 let row = display_hunk.start_display_row();
9889 let point = DisplayPoint::new(row, 0);
9890 s.select_display_ranges([point..point]);
9891 });
9892
9893 Some(hunk)
9894 } else {
9895 None
9896 }
9897 }
9898
9899 pub fn go_to_definition(
9900 &mut self,
9901 _: &GoToDefinition,
9902 cx: &mut ViewContext<Self>,
9903 ) -> Task<Result<Navigated>> {
9904 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9905 cx.spawn(|editor, mut cx| async move {
9906 if definition.await? == Navigated::Yes {
9907 return Ok(Navigated::Yes);
9908 }
9909 match editor.update(&mut cx, |editor, cx| {
9910 editor.find_all_references(&FindAllReferences, cx)
9911 })? {
9912 Some(references) => references.await,
9913 None => Ok(Navigated::No),
9914 }
9915 })
9916 }
9917
9918 pub fn go_to_declaration(
9919 &mut self,
9920 _: &GoToDeclaration,
9921 cx: &mut ViewContext<Self>,
9922 ) -> Task<Result<Navigated>> {
9923 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9924 }
9925
9926 pub fn go_to_declaration_split(
9927 &mut self,
9928 _: &GoToDeclaration,
9929 cx: &mut ViewContext<Self>,
9930 ) -> Task<Result<Navigated>> {
9931 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9932 }
9933
9934 pub fn go_to_implementation(
9935 &mut self,
9936 _: &GoToImplementation,
9937 cx: &mut ViewContext<Self>,
9938 ) -> Task<Result<Navigated>> {
9939 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9940 }
9941
9942 pub fn go_to_implementation_split(
9943 &mut self,
9944 _: &GoToImplementationSplit,
9945 cx: &mut ViewContext<Self>,
9946 ) -> Task<Result<Navigated>> {
9947 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9948 }
9949
9950 pub fn go_to_type_definition(
9951 &mut self,
9952 _: &GoToTypeDefinition,
9953 cx: &mut ViewContext<Self>,
9954 ) -> Task<Result<Navigated>> {
9955 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9956 }
9957
9958 pub fn go_to_definition_split(
9959 &mut self,
9960 _: &GoToDefinitionSplit,
9961 cx: &mut ViewContext<Self>,
9962 ) -> Task<Result<Navigated>> {
9963 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9964 }
9965
9966 pub fn go_to_type_definition_split(
9967 &mut self,
9968 _: &GoToTypeDefinitionSplit,
9969 cx: &mut ViewContext<Self>,
9970 ) -> Task<Result<Navigated>> {
9971 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9972 }
9973
9974 fn go_to_definition_of_kind(
9975 &mut self,
9976 kind: GotoDefinitionKind,
9977 split: bool,
9978 cx: &mut ViewContext<Self>,
9979 ) -> Task<Result<Navigated>> {
9980 let Some(provider) = self.semantics_provider.clone() else {
9981 return Task::ready(Ok(Navigated::No));
9982 };
9983 let head = self.selections.newest::<usize>(cx).head();
9984 let buffer = self.buffer.read(cx);
9985 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9986 text_anchor
9987 } else {
9988 return Task::ready(Ok(Navigated::No));
9989 };
9990
9991 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9992 return Task::ready(Ok(Navigated::No));
9993 };
9994
9995 cx.spawn(|editor, mut cx| async move {
9996 let definitions = definitions.await?;
9997 let navigated = editor
9998 .update(&mut cx, |editor, cx| {
9999 editor.navigate_to_hover_links(
10000 Some(kind),
10001 definitions
10002 .into_iter()
10003 .filter(|location| {
10004 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
10005 })
10006 .map(HoverLink::Text)
10007 .collect::<Vec<_>>(),
10008 split,
10009 cx,
10010 )
10011 })?
10012 .await?;
10013 anyhow::Ok(navigated)
10014 })
10015 }
10016
10017 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
10018 let position = self.selections.newest_anchor().head();
10019 let Some((buffer, buffer_position)) =
10020 self.buffer.read(cx).text_anchor_for_position(position, cx)
10021 else {
10022 return;
10023 };
10024
10025 cx.spawn(|editor, mut cx| async move {
10026 if let Some((_, url)) = find_url(&buffer, buffer_position, cx.clone()) {
10027 editor.update(&mut cx, |_, cx| {
10028 cx.open_url(&url);
10029 })
10030 } else {
10031 Ok(())
10032 }
10033 })
10034 .detach();
10035 }
10036
10037 pub fn open_file(&mut self, _: &OpenFile, cx: &mut ViewContext<Self>) {
10038 let Some(workspace) = self.workspace() else {
10039 return;
10040 };
10041
10042 let position = self.selections.newest_anchor().head();
10043
10044 let Some((buffer, buffer_position)) =
10045 self.buffer.read(cx).text_anchor_for_position(position, cx)
10046 else {
10047 return;
10048 };
10049
10050 let project = self.project.clone();
10051
10052 cx.spawn(|_, mut cx| async move {
10053 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
10054
10055 if let Some((_, path)) = result {
10056 workspace
10057 .update(&mut cx, |workspace, cx| {
10058 workspace.open_resolved_path(path, cx)
10059 })?
10060 .await?;
10061 }
10062 anyhow::Ok(())
10063 })
10064 .detach();
10065 }
10066
10067 pub(crate) fn navigate_to_hover_links(
10068 &mut self,
10069 kind: Option<GotoDefinitionKind>,
10070 mut definitions: Vec<HoverLink>,
10071 split: bool,
10072 cx: &mut ViewContext<Editor>,
10073 ) -> Task<Result<Navigated>> {
10074 // If there is one definition, just open it directly
10075 if definitions.len() == 1 {
10076 let definition = definitions.pop().unwrap();
10077
10078 enum TargetTaskResult {
10079 Location(Option<Location>),
10080 AlreadyNavigated,
10081 }
10082
10083 let target_task = match definition {
10084 HoverLink::Text(link) => {
10085 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
10086 }
10087 HoverLink::InlayHint(lsp_location, server_id) => {
10088 let computation = self.compute_target_location(lsp_location, server_id, cx);
10089 cx.background_executor().spawn(async move {
10090 let location = computation.await?;
10091 Ok(TargetTaskResult::Location(location))
10092 })
10093 }
10094 HoverLink::Url(url) => {
10095 cx.open_url(&url);
10096 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
10097 }
10098 HoverLink::File(path) => {
10099 if let Some(workspace) = self.workspace() {
10100 cx.spawn(|_, mut cx| async move {
10101 workspace
10102 .update(&mut cx, |workspace, cx| {
10103 workspace.open_resolved_path(path, cx)
10104 })?
10105 .await
10106 .map(|_| TargetTaskResult::AlreadyNavigated)
10107 })
10108 } else {
10109 Task::ready(Ok(TargetTaskResult::Location(None)))
10110 }
10111 }
10112 };
10113 cx.spawn(|editor, mut cx| async move {
10114 let target = match target_task.await.context("target resolution task")? {
10115 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
10116 TargetTaskResult::Location(None) => return Ok(Navigated::No),
10117 TargetTaskResult::Location(Some(target)) => target,
10118 };
10119
10120 editor.update(&mut cx, |editor, cx| {
10121 let Some(workspace) = editor.workspace() else {
10122 return Navigated::No;
10123 };
10124 let pane = workspace.read(cx).active_pane().clone();
10125
10126 let range = target.range.to_offset(target.buffer.read(cx));
10127 let range = editor.range_for_match(&range);
10128
10129 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
10130 let buffer = target.buffer.read(cx);
10131 let range = check_multiline_range(buffer, range);
10132 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10133 s.select_ranges([range]);
10134 });
10135 } else {
10136 cx.window_context().defer(move |cx| {
10137 let target_editor: View<Self> =
10138 workspace.update(cx, |workspace, cx| {
10139 let pane = if split {
10140 workspace.adjacent_pane(cx)
10141 } else {
10142 workspace.active_pane().clone()
10143 };
10144
10145 workspace.open_project_item(
10146 pane,
10147 target.buffer.clone(),
10148 true,
10149 true,
10150 cx,
10151 )
10152 });
10153 target_editor.update(cx, |target_editor, cx| {
10154 // When selecting a definition in a different buffer, disable the nav history
10155 // to avoid creating a history entry at the previous cursor location.
10156 pane.update(cx, |pane, _| pane.disable_history());
10157 let buffer = target.buffer.read(cx);
10158 let range = check_multiline_range(buffer, range);
10159 target_editor.change_selections(
10160 Some(Autoscroll::focused()),
10161 cx,
10162 |s| {
10163 s.select_ranges([range]);
10164 },
10165 );
10166 pane.update(cx, |pane, _| pane.enable_history());
10167 });
10168 });
10169 }
10170 Navigated::Yes
10171 })
10172 })
10173 } else if !definitions.is_empty() {
10174 cx.spawn(|editor, mut cx| async move {
10175 let (title, location_tasks, workspace) = editor
10176 .update(&mut cx, |editor, cx| {
10177 let tab_kind = match kind {
10178 Some(GotoDefinitionKind::Implementation) => "Implementations",
10179 _ => "Definitions",
10180 };
10181 let title = definitions
10182 .iter()
10183 .find_map(|definition| match definition {
10184 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
10185 let buffer = origin.buffer.read(cx);
10186 format!(
10187 "{} for {}",
10188 tab_kind,
10189 buffer
10190 .text_for_range(origin.range.clone())
10191 .collect::<String>()
10192 )
10193 }),
10194 HoverLink::InlayHint(_, _) => None,
10195 HoverLink::Url(_) => None,
10196 HoverLink::File(_) => None,
10197 })
10198 .unwrap_or(tab_kind.to_string());
10199 let location_tasks = definitions
10200 .into_iter()
10201 .map(|definition| match definition {
10202 HoverLink::Text(link) => Task::Ready(Some(Ok(Some(link.target)))),
10203 HoverLink::InlayHint(lsp_location, server_id) => {
10204 editor.compute_target_location(lsp_location, server_id, cx)
10205 }
10206 HoverLink::Url(_) => Task::ready(Ok(None)),
10207 HoverLink::File(_) => Task::ready(Ok(None)),
10208 })
10209 .collect::<Vec<_>>();
10210 (title, location_tasks, editor.workspace().clone())
10211 })
10212 .context("location tasks preparation")?;
10213
10214 let locations = future::join_all(location_tasks)
10215 .await
10216 .into_iter()
10217 .filter_map(|location| location.transpose())
10218 .collect::<Result<_>>()
10219 .context("location tasks")?;
10220
10221 let Some(workspace) = workspace else {
10222 return Ok(Navigated::No);
10223 };
10224 let opened = workspace
10225 .update(&mut cx, |workspace, cx| {
10226 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
10227 })
10228 .ok();
10229
10230 anyhow::Ok(Navigated::from_bool(opened.is_some()))
10231 })
10232 } else {
10233 Task::ready(Ok(Navigated::No))
10234 }
10235 }
10236
10237 fn compute_target_location(
10238 &self,
10239 lsp_location: lsp::Location,
10240 server_id: LanguageServerId,
10241 cx: &mut ViewContext<Self>,
10242 ) -> Task<anyhow::Result<Option<Location>>> {
10243 let Some(project) = self.project.clone() else {
10244 return Task::Ready(Some(Ok(None)));
10245 };
10246
10247 cx.spawn(move |editor, mut cx| async move {
10248 let location_task = editor.update(&mut cx, |_, cx| {
10249 project.update(cx, |project, cx| {
10250 let language_server_name = project
10251 .language_server_statuses(cx)
10252 .find(|(id, _)| server_id == *id)
10253 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
10254 language_server_name.map(|language_server_name| {
10255 project.open_local_buffer_via_lsp(
10256 lsp_location.uri.clone(),
10257 server_id,
10258 language_server_name,
10259 cx,
10260 )
10261 })
10262 })
10263 })?;
10264 let location = match location_task {
10265 Some(task) => Some({
10266 let target_buffer_handle = task.await.context("open local buffer")?;
10267 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
10268 let target_start = target_buffer
10269 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
10270 let target_end = target_buffer
10271 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
10272 target_buffer.anchor_after(target_start)
10273 ..target_buffer.anchor_before(target_end)
10274 })?;
10275 Location {
10276 buffer: target_buffer_handle,
10277 range,
10278 }
10279 }),
10280 None => None,
10281 };
10282 Ok(location)
10283 })
10284 }
10285
10286 pub fn find_all_references(
10287 &mut self,
10288 _: &FindAllReferences,
10289 cx: &mut ViewContext<Self>,
10290 ) -> Option<Task<Result<Navigated>>> {
10291 let selection = self.selections.newest::<usize>(cx);
10292 let multi_buffer = self.buffer.read(cx);
10293 let head = selection.head();
10294
10295 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
10296 let head_anchor = multi_buffer_snapshot.anchor_at(
10297 head,
10298 if head < selection.tail() {
10299 Bias::Right
10300 } else {
10301 Bias::Left
10302 },
10303 );
10304
10305 match self
10306 .find_all_references_task_sources
10307 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
10308 {
10309 Ok(_) => {
10310 log::info!(
10311 "Ignoring repeated FindAllReferences invocation with the position of already running task"
10312 );
10313 return None;
10314 }
10315 Err(i) => {
10316 self.find_all_references_task_sources.insert(i, head_anchor);
10317 }
10318 }
10319
10320 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
10321 let workspace = self.workspace()?;
10322 let project = workspace.read(cx).project().clone();
10323 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
10324 Some(cx.spawn(|editor, mut cx| async move {
10325 let _cleanup = defer({
10326 let mut cx = cx.clone();
10327 move || {
10328 let _ = editor.update(&mut cx, |editor, _| {
10329 if let Ok(i) =
10330 editor
10331 .find_all_references_task_sources
10332 .binary_search_by(|anchor| {
10333 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
10334 })
10335 {
10336 editor.find_all_references_task_sources.remove(i);
10337 }
10338 });
10339 }
10340 });
10341
10342 let locations = references.await?;
10343 if locations.is_empty() {
10344 return anyhow::Ok(Navigated::No);
10345 }
10346
10347 workspace.update(&mut cx, |workspace, cx| {
10348 let title = locations
10349 .first()
10350 .as_ref()
10351 .map(|location| {
10352 let buffer = location.buffer.read(cx);
10353 format!(
10354 "References to `{}`",
10355 buffer
10356 .text_for_range(location.range.clone())
10357 .collect::<String>()
10358 )
10359 })
10360 .unwrap();
10361 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
10362 Navigated::Yes
10363 })
10364 }))
10365 }
10366
10367 /// Opens a multibuffer with the given project locations in it
10368 pub fn open_locations_in_multibuffer(
10369 workspace: &mut Workspace,
10370 mut locations: Vec<Location>,
10371 title: String,
10372 split: bool,
10373 cx: &mut ViewContext<Workspace>,
10374 ) {
10375 // If there are multiple definitions, open them in a multibuffer
10376 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
10377 let mut locations = locations.into_iter().peekable();
10378 let mut ranges_to_highlight = Vec::new();
10379 let capability = workspace.project().read(cx).capability();
10380
10381 let excerpt_buffer = cx.new_model(|cx| {
10382 let mut multibuffer = MultiBuffer::new(capability);
10383 while let Some(location) = locations.next() {
10384 let buffer = location.buffer.read(cx);
10385 let mut ranges_for_buffer = Vec::new();
10386 let range = location.range.to_offset(buffer);
10387 ranges_for_buffer.push(range.clone());
10388
10389 while let Some(next_location) = locations.peek() {
10390 if next_location.buffer == location.buffer {
10391 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10392 locations.next();
10393 } else {
10394 break;
10395 }
10396 }
10397
10398 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10399 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10400 location.buffer.clone(),
10401 ranges_for_buffer,
10402 DEFAULT_MULTIBUFFER_CONTEXT,
10403 cx,
10404 ))
10405 }
10406
10407 multibuffer.with_title(title)
10408 });
10409
10410 let editor = cx.new_view(|cx| {
10411 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10412 });
10413 editor.update(cx, |editor, cx| {
10414 if let Some(first_range) = ranges_to_highlight.first() {
10415 editor.change_selections(None, cx, |selections| {
10416 selections.clear_disjoint();
10417 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10418 });
10419 }
10420 editor.highlight_background::<Self>(
10421 &ranges_to_highlight,
10422 |theme| theme.editor_highlighted_line_background,
10423 cx,
10424 );
10425 });
10426
10427 let item = Box::new(editor);
10428 let item_id = item.item_id();
10429
10430 if split {
10431 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10432 } else {
10433 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10434 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10435 pane.close_current_preview_item(cx)
10436 } else {
10437 None
10438 }
10439 });
10440 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10441 }
10442 workspace.active_pane().update(cx, |pane, cx| {
10443 pane.set_preview_item_id(Some(item_id), cx);
10444 });
10445 }
10446
10447 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10448 use language::ToOffset as _;
10449
10450 let provider = self.semantics_provider.clone()?;
10451 let selection = self.selections.newest_anchor().clone();
10452 let (cursor_buffer, cursor_buffer_position) = self
10453 .buffer
10454 .read(cx)
10455 .text_anchor_for_position(selection.head(), cx)?;
10456 let (tail_buffer, cursor_buffer_position_end) = self
10457 .buffer
10458 .read(cx)
10459 .text_anchor_for_position(selection.tail(), cx)?;
10460 if tail_buffer != cursor_buffer {
10461 return None;
10462 }
10463
10464 let snapshot = cursor_buffer.read(cx).snapshot();
10465 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10466 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10467 let prepare_rename = provider
10468 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10469 .unwrap_or_else(|| Task::ready(Ok(None)));
10470 drop(snapshot);
10471
10472 Some(cx.spawn(|this, mut cx| async move {
10473 let rename_range = if let Some(range) = prepare_rename.await? {
10474 Some(range)
10475 } else {
10476 this.update(&mut cx, |this, cx| {
10477 let buffer = this.buffer.read(cx).snapshot(cx);
10478 let mut buffer_highlights = this
10479 .document_highlights_for_position(selection.head(), &buffer)
10480 .filter(|highlight| {
10481 highlight.start.excerpt_id == selection.head().excerpt_id
10482 && highlight.end.excerpt_id == selection.head().excerpt_id
10483 });
10484 buffer_highlights
10485 .next()
10486 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10487 })?
10488 };
10489 if let Some(rename_range) = rename_range {
10490 this.update(&mut cx, |this, cx| {
10491 let snapshot = cursor_buffer.read(cx).snapshot();
10492 let rename_buffer_range = rename_range.to_offset(&snapshot);
10493 let cursor_offset_in_rename_range =
10494 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10495 let cursor_offset_in_rename_range_end =
10496 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10497
10498 this.take_rename(false, cx);
10499 let buffer = this.buffer.read(cx).read(cx);
10500 let cursor_offset = selection.head().to_offset(&buffer);
10501 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10502 let rename_end = rename_start + rename_buffer_range.len();
10503 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10504 let mut old_highlight_id = None;
10505 let old_name: Arc<str> = buffer
10506 .chunks(rename_start..rename_end, true)
10507 .map(|chunk| {
10508 if old_highlight_id.is_none() {
10509 old_highlight_id = chunk.syntax_highlight_id;
10510 }
10511 chunk.text
10512 })
10513 .collect::<String>()
10514 .into();
10515
10516 drop(buffer);
10517
10518 // Position the selection in the rename editor so that it matches the current selection.
10519 this.show_local_selections = false;
10520 let rename_editor = cx.new_view(|cx| {
10521 let mut editor = Editor::single_line(cx);
10522 editor.buffer.update(cx, |buffer, cx| {
10523 buffer.edit([(0..0, old_name.clone())], None, cx)
10524 });
10525 let rename_selection_range = match cursor_offset_in_rename_range
10526 .cmp(&cursor_offset_in_rename_range_end)
10527 {
10528 Ordering::Equal => {
10529 editor.select_all(&SelectAll, cx);
10530 return editor;
10531 }
10532 Ordering::Less => {
10533 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10534 }
10535 Ordering::Greater => {
10536 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10537 }
10538 };
10539 if rename_selection_range.end > old_name.len() {
10540 editor.select_all(&SelectAll, cx);
10541 } else {
10542 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10543 s.select_ranges([rename_selection_range]);
10544 });
10545 }
10546 editor
10547 });
10548 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10549 if e == &EditorEvent::Focused {
10550 cx.emit(EditorEvent::FocusedIn)
10551 }
10552 })
10553 .detach();
10554
10555 let write_highlights =
10556 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10557 let read_highlights =
10558 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10559 let ranges = write_highlights
10560 .iter()
10561 .flat_map(|(_, ranges)| ranges.iter())
10562 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10563 .cloned()
10564 .collect();
10565
10566 this.highlight_text::<Rename>(
10567 ranges,
10568 HighlightStyle {
10569 fade_out: Some(0.6),
10570 ..Default::default()
10571 },
10572 cx,
10573 );
10574 let rename_focus_handle = rename_editor.focus_handle(cx);
10575 cx.focus(&rename_focus_handle);
10576 let block_id = this.insert_blocks(
10577 [BlockProperties {
10578 style: BlockStyle::Flex,
10579 placement: BlockPlacement::Below(range.start),
10580 height: 1,
10581 render: Arc::new({
10582 let rename_editor = rename_editor.clone();
10583 move |cx: &mut BlockContext| {
10584 let mut text_style = cx.editor_style.text.clone();
10585 if let Some(highlight_style) = old_highlight_id
10586 .and_then(|h| h.style(&cx.editor_style.syntax))
10587 {
10588 text_style = text_style.highlight(highlight_style);
10589 }
10590 div()
10591 .block_mouse_down()
10592 .pl(cx.anchor_x)
10593 .child(EditorElement::new(
10594 &rename_editor,
10595 EditorStyle {
10596 background: cx.theme().system().transparent,
10597 local_player: cx.editor_style.local_player,
10598 text: text_style,
10599 scrollbar_width: cx.editor_style.scrollbar_width,
10600 syntax: cx.editor_style.syntax.clone(),
10601 status: cx.editor_style.status.clone(),
10602 inlay_hints_style: HighlightStyle {
10603 font_weight: Some(FontWeight::BOLD),
10604 ..make_inlay_hints_style(cx)
10605 },
10606 suggestions_style: HighlightStyle {
10607 color: Some(cx.theme().status().predictive),
10608 ..HighlightStyle::default()
10609 },
10610 ..EditorStyle::default()
10611 },
10612 ))
10613 .into_any_element()
10614 }
10615 }),
10616 priority: 0,
10617 }],
10618 Some(Autoscroll::fit()),
10619 cx,
10620 )[0];
10621 this.pending_rename = Some(RenameState {
10622 range,
10623 old_name,
10624 editor: rename_editor,
10625 block_id,
10626 });
10627 })?;
10628 }
10629
10630 Ok(())
10631 }))
10632 }
10633
10634 pub fn confirm_rename(
10635 &mut self,
10636 _: &ConfirmRename,
10637 cx: &mut ViewContext<Self>,
10638 ) -> Option<Task<Result<()>>> {
10639 let rename = self.take_rename(false, cx)?;
10640 let workspace = self.workspace()?.downgrade();
10641 let (buffer, start) = self
10642 .buffer
10643 .read(cx)
10644 .text_anchor_for_position(rename.range.start, cx)?;
10645 let (end_buffer, _) = self
10646 .buffer
10647 .read(cx)
10648 .text_anchor_for_position(rename.range.end, cx)?;
10649 if buffer != end_buffer {
10650 return None;
10651 }
10652
10653 let old_name = rename.old_name;
10654 let new_name = rename.editor.read(cx).text(cx);
10655
10656 let rename = self.semantics_provider.as_ref()?.perform_rename(
10657 &buffer,
10658 start,
10659 new_name.clone(),
10660 cx,
10661 )?;
10662
10663 Some(cx.spawn(|editor, mut cx| async move {
10664 let project_transaction = rename.await?;
10665 Self::open_project_transaction(
10666 &editor,
10667 workspace,
10668 project_transaction,
10669 format!("Rename: {} → {}", old_name, new_name),
10670 cx.clone(),
10671 )
10672 .await?;
10673
10674 editor.update(&mut cx, |editor, cx| {
10675 editor.refresh_document_highlights(cx);
10676 })?;
10677 Ok(())
10678 }))
10679 }
10680
10681 fn take_rename(
10682 &mut self,
10683 moving_cursor: bool,
10684 cx: &mut ViewContext<Self>,
10685 ) -> Option<RenameState> {
10686 let rename = self.pending_rename.take()?;
10687 if rename.editor.focus_handle(cx).is_focused(cx) {
10688 cx.focus(&self.focus_handle);
10689 }
10690
10691 self.remove_blocks(
10692 [rename.block_id].into_iter().collect(),
10693 Some(Autoscroll::fit()),
10694 cx,
10695 );
10696 self.clear_highlights::<Rename>(cx);
10697 self.show_local_selections = true;
10698
10699 if moving_cursor {
10700 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10701 editor.selections.newest::<usize>(cx).head()
10702 });
10703
10704 // Update the selection to match the position of the selection inside
10705 // the rename editor.
10706 let snapshot = self.buffer.read(cx).read(cx);
10707 let rename_range = rename.range.to_offset(&snapshot);
10708 let cursor_in_editor = snapshot
10709 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10710 .min(rename_range.end);
10711 drop(snapshot);
10712
10713 self.change_selections(None, cx, |s| {
10714 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10715 });
10716 } else {
10717 self.refresh_document_highlights(cx);
10718 }
10719
10720 Some(rename)
10721 }
10722
10723 pub fn pending_rename(&self) -> Option<&RenameState> {
10724 self.pending_rename.as_ref()
10725 }
10726
10727 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10728 let project = match &self.project {
10729 Some(project) => project.clone(),
10730 None => return None,
10731 };
10732
10733 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10734 }
10735
10736 fn format_selections(
10737 &mut self,
10738 _: &FormatSelections,
10739 cx: &mut ViewContext<Self>,
10740 ) -> Option<Task<Result<()>>> {
10741 let project = match &self.project {
10742 Some(project) => project.clone(),
10743 None => return None,
10744 };
10745
10746 let selections = self
10747 .selections
10748 .all_adjusted(cx)
10749 .into_iter()
10750 .filter(|s| !s.is_empty())
10751 .collect_vec();
10752
10753 Some(self.perform_format(
10754 project,
10755 FormatTrigger::Manual,
10756 FormatTarget::Ranges(selections),
10757 cx,
10758 ))
10759 }
10760
10761 fn perform_format(
10762 &mut self,
10763 project: Model<Project>,
10764 trigger: FormatTrigger,
10765 target: FormatTarget,
10766 cx: &mut ViewContext<Self>,
10767 ) -> Task<Result<()>> {
10768 let buffer = self.buffer().clone();
10769 let mut buffers = buffer.read(cx).all_buffers();
10770 if trigger == FormatTrigger::Save {
10771 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10772 }
10773
10774 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10775 let format = project.update(cx, |project, cx| {
10776 project.format(buffers, true, trigger, target, cx)
10777 });
10778
10779 cx.spawn(|_, mut cx| async move {
10780 let transaction = futures::select_biased! {
10781 () = timeout => {
10782 log::warn!("timed out waiting for formatting");
10783 None
10784 }
10785 transaction = format.log_err().fuse() => transaction,
10786 };
10787
10788 buffer
10789 .update(&mut cx, |buffer, cx| {
10790 if let Some(transaction) = transaction {
10791 if !buffer.is_singleton() {
10792 buffer.push_transaction(&transaction.0, cx);
10793 }
10794 }
10795
10796 cx.notify();
10797 })
10798 .ok();
10799
10800 Ok(())
10801 })
10802 }
10803
10804 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10805 if let Some(project) = self.project.clone() {
10806 self.buffer.update(cx, |multi_buffer, cx| {
10807 project.update(cx, |project, cx| {
10808 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10809 });
10810 })
10811 }
10812 }
10813
10814 fn cancel_language_server_work(
10815 &mut self,
10816 _: &actions::CancelLanguageServerWork,
10817 cx: &mut ViewContext<Self>,
10818 ) {
10819 if let Some(project) = self.project.clone() {
10820 self.buffer.update(cx, |multi_buffer, cx| {
10821 project.update(cx, |project, cx| {
10822 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10823 });
10824 })
10825 }
10826 }
10827
10828 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10829 cx.show_character_palette();
10830 }
10831
10832 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10833 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10834 let buffer = self.buffer.read(cx).snapshot(cx);
10835 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10836 let is_valid = buffer
10837 .diagnostics_in_range::<_, usize>(active_diagnostics.primary_range.clone(), false)
10838 .any(|entry| {
10839 entry.diagnostic.is_primary
10840 && !entry.range.is_empty()
10841 && entry.range.start == primary_range_start
10842 && entry.diagnostic.message == active_diagnostics.primary_message
10843 });
10844
10845 if is_valid != active_diagnostics.is_valid {
10846 active_diagnostics.is_valid = is_valid;
10847 let mut new_styles = HashMap::default();
10848 for (block_id, diagnostic) in &active_diagnostics.blocks {
10849 new_styles.insert(
10850 *block_id,
10851 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10852 );
10853 }
10854 self.display_map.update(cx, |display_map, _cx| {
10855 display_map.replace_blocks(new_styles)
10856 });
10857 }
10858 }
10859 }
10860
10861 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) -> bool {
10862 self.dismiss_diagnostics(cx);
10863 let snapshot = self.snapshot(cx);
10864 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10865 let buffer = self.buffer.read(cx).snapshot(cx);
10866
10867 let mut primary_range = None;
10868 let mut primary_message = None;
10869 let mut group_end = Point::zero();
10870 let diagnostic_group = buffer
10871 .diagnostic_group::<MultiBufferPoint>(group_id)
10872 .filter_map(|entry| {
10873 if snapshot.is_line_folded(MultiBufferRow(entry.range.start.row))
10874 && (entry.range.start.row == entry.range.end.row
10875 || snapshot.is_line_folded(MultiBufferRow(entry.range.end.row)))
10876 {
10877 return None;
10878 }
10879 if entry.range.end > group_end {
10880 group_end = entry.range.end;
10881 }
10882 if entry.diagnostic.is_primary {
10883 primary_range = Some(entry.range.clone());
10884 primary_message = Some(entry.diagnostic.message.clone());
10885 }
10886 Some(entry)
10887 })
10888 .collect::<Vec<_>>();
10889 let primary_range = primary_range?;
10890 let primary_message = primary_message?;
10891 let primary_range =
10892 buffer.anchor_after(primary_range.start)..buffer.anchor_before(primary_range.end);
10893
10894 let blocks = display_map
10895 .insert_blocks(
10896 diagnostic_group.iter().map(|entry| {
10897 let diagnostic = entry.diagnostic.clone();
10898 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10899 BlockProperties {
10900 style: BlockStyle::Fixed,
10901 placement: BlockPlacement::Below(
10902 buffer.anchor_after(entry.range.start),
10903 ),
10904 height: message_height,
10905 render: diagnostic_block_renderer(diagnostic, None, true, true),
10906 priority: 0,
10907 }
10908 }),
10909 cx,
10910 )
10911 .into_iter()
10912 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10913 .collect();
10914
10915 Some(ActiveDiagnosticGroup {
10916 primary_range,
10917 primary_message,
10918 group_id,
10919 blocks,
10920 is_valid: true,
10921 })
10922 });
10923 self.active_diagnostics.is_some()
10924 }
10925
10926 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10927 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10928 self.display_map.update(cx, |display_map, cx| {
10929 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10930 });
10931 cx.notify();
10932 }
10933 }
10934
10935 pub fn set_selections_from_remote(
10936 &mut self,
10937 selections: Vec<Selection<Anchor>>,
10938 pending_selection: Option<Selection<Anchor>>,
10939 cx: &mut ViewContext<Self>,
10940 ) {
10941 let old_cursor_position = self.selections.newest_anchor().head();
10942 self.selections.change_with(cx, |s| {
10943 s.select_anchors(selections);
10944 if let Some(pending_selection) = pending_selection {
10945 s.set_pending(pending_selection, SelectMode::Character);
10946 } else {
10947 s.clear_pending();
10948 }
10949 });
10950 self.selections_did_change(false, &old_cursor_position, true, cx);
10951 }
10952
10953 fn push_to_selection_history(&mut self) {
10954 self.selection_history.push(SelectionHistoryEntry {
10955 selections: self.selections.disjoint_anchors(),
10956 select_next_state: self.select_next_state.clone(),
10957 select_prev_state: self.select_prev_state.clone(),
10958 add_selections_state: self.add_selections_state.clone(),
10959 });
10960 }
10961
10962 pub fn transact(
10963 &mut self,
10964 cx: &mut ViewContext<Self>,
10965 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10966 ) -> Option<TransactionId> {
10967 self.start_transaction_at(Instant::now(), cx);
10968 update(self, cx);
10969 self.end_transaction_at(Instant::now(), cx)
10970 }
10971
10972 fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10973 self.end_selection(cx);
10974 if let Some(tx_id) = self
10975 .buffer
10976 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10977 {
10978 self.selection_history
10979 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10980 cx.emit(EditorEvent::TransactionBegun {
10981 transaction_id: tx_id,
10982 })
10983 }
10984 }
10985
10986 fn end_transaction_at(
10987 &mut self,
10988 now: Instant,
10989 cx: &mut ViewContext<Self>,
10990 ) -> Option<TransactionId> {
10991 if let Some(transaction_id) = self
10992 .buffer
10993 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10994 {
10995 if let Some((_, end_selections)) =
10996 self.selection_history.transaction_mut(transaction_id)
10997 {
10998 *end_selections = Some(self.selections.disjoint_anchors());
10999 } else {
11000 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
11001 }
11002
11003 cx.emit(EditorEvent::Edited { transaction_id });
11004 Some(transaction_id)
11005 } else {
11006 None
11007 }
11008 }
11009
11010 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
11011 let selection = self.selections.newest::<Point>(cx);
11012
11013 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11014 let range = if selection.is_empty() {
11015 let point = selection.head().to_display_point(&display_map);
11016 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11017 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11018 .to_point(&display_map);
11019 start..end
11020 } else {
11021 selection.range()
11022 };
11023 if display_map.folds_in_range(range).next().is_some() {
11024 self.unfold_lines(&Default::default(), cx)
11025 } else {
11026 self.fold(&Default::default(), cx)
11027 }
11028 }
11029
11030 pub fn toggle_fold_recursive(
11031 &mut self,
11032 _: &actions::ToggleFoldRecursive,
11033 cx: &mut ViewContext<Self>,
11034 ) {
11035 let selection = self.selections.newest::<Point>(cx);
11036
11037 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11038 let range = if selection.is_empty() {
11039 let point = selection.head().to_display_point(&display_map);
11040 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
11041 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
11042 .to_point(&display_map);
11043 start..end
11044 } else {
11045 selection.range()
11046 };
11047 if display_map.folds_in_range(range).next().is_some() {
11048 self.unfold_recursive(&Default::default(), cx)
11049 } else {
11050 self.fold_recursive(&Default::default(), cx)
11051 }
11052 }
11053
11054 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
11055 let mut to_fold = Vec::new();
11056 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11057 let selections = self.selections.all_adjusted(cx);
11058
11059 for selection in selections {
11060 let range = selection.range().sorted();
11061 let buffer_start_row = range.start.row;
11062
11063 if range.start.row != range.end.row {
11064 let mut found = false;
11065 let mut row = range.start.row;
11066 while row <= range.end.row {
11067 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11068 found = true;
11069 row = crease.range().end.row + 1;
11070 to_fold.push(crease);
11071 } else {
11072 row += 1
11073 }
11074 }
11075 if found {
11076 continue;
11077 }
11078 }
11079
11080 for row in (0..=range.start.row).rev() {
11081 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11082 if crease.range().end.row >= buffer_start_row {
11083 to_fold.push(crease);
11084 if row <= range.start.row {
11085 break;
11086 }
11087 }
11088 }
11089 }
11090 }
11091
11092 self.fold_creases(to_fold, true, cx);
11093 }
11094
11095 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
11096 let fold_at_level = fold_at.level;
11097 let snapshot = self.buffer.read(cx).snapshot(cx);
11098 let mut to_fold = Vec::new();
11099 let mut stack = vec![(0, snapshot.max_buffer_row().0, 1)];
11100
11101 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
11102 while start_row < end_row {
11103 match self
11104 .snapshot(cx)
11105 .crease_for_buffer_row(MultiBufferRow(start_row))
11106 {
11107 Some(crease) => {
11108 let nested_start_row = crease.range().start.row + 1;
11109 let nested_end_row = crease.range().end.row;
11110
11111 if current_level < fold_at_level {
11112 stack.push((nested_start_row, nested_end_row, current_level + 1));
11113 } else if current_level == fold_at_level {
11114 to_fold.push(crease);
11115 }
11116
11117 start_row = nested_end_row + 1;
11118 }
11119 None => start_row += 1,
11120 }
11121 }
11122 }
11123
11124 self.fold_creases(to_fold, true, cx);
11125 }
11126
11127 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
11128 let mut fold_ranges = Vec::new();
11129 let snapshot = self.buffer.read(cx).snapshot(cx);
11130
11131 for row in 0..snapshot.max_buffer_row().0 {
11132 if let Some(foldable_range) =
11133 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
11134 {
11135 fold_ranges.push(foldable_range);
11136 }
11137 }
11138
11139 self.fold_creases(fold_ranges, true, cx);
11140 }
11141
11142 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
11143 let mut to_fold = Vec::new();
11144 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11145 let selections = self.selections.all_adjusted(cx);
11146
11147 for selection in selections {
11148 let range = selection.range().sorted();
11149 let buffer_start_row = range.start.row;
11150
11151 if range.start.row != range.end.row {
11152 let mut found = false;
11153 for row in range.start.row..=range.end.row {
11154 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11155 found = true;
11156 to_fold.push(crease);
11157 }
11158 }
11159 if found {
11160 continue;
11161 }
11162 }
11163
11164 for row in (0..=range.start.row).rev() {
11165 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
11166 if crease.range().end.row >= buffer_start_row {
11167 to_fold.push(crease);
11168 } else {
11169 break;
11170 }
11171 }
11172 }
11173 }
11174
11175 self.fold_creases(to_fold, true, cx);
11176 }
11177
11178 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
11179 let buffer_row = fold_at.buffer_row;
11180 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11181
11182 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
11183 let autoscroll = self
11184 .selections
11185 .all::<Point>(cx)
11186 .iter()
11187 .any(|selection| crease.range().overlaps(&selection.range()));
11188
11189 self.fold_creases(vec![crease], autoscroll, cx);
11190 }
11191 }
11192
11193 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
11194 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11195 let buffer = &display_map.buffer_snapshot;
11196 let selections = self.selections.all::<Point>(cx);
11197 let ranges = selections
11198 .iter()
11199 .map(|s| {
11200 let range = s.display_range(&display_map).sorted();
11201 let mut start = range.start.to_point(&display_map);
11202 let mut end = range.end.to_point(&display_map);
11203 start.column = 0;
11204 end.column = buffer.line_len(MultiBufferRow(end.row));
11205 start..end
11206 })
11207 .collect::<Vec<_>>();
11208
11209 self.unfold_ranges(&ranges, true, true, cx);
11210 }
11211
11212 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
11213 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11214 let selections = self.selections.all::<Point>(cx);
11215 let ranges = selections
11216 .iter()
11217 .map(|s| {
11218 let mut range = s.display_range(&display_map).sorted();
11219 *range.start.column_mut() = 0;
11220 *range.end.column_mut() = display_map.line_len(range.end.row());
11221 let start = range.start.to_point(&display_map);
11222 let end = range.end.to_point(&display_map);
11223 start..end
11224 })
11225 .collect::<Vec<_>>();
11226
11227 self.unfold_ranges(&ranges, true, true, cx);
11228 }
11229
11230 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
11231 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11232
11233 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
11234 ..Point::new(
11235 unfold_at.buffer_row.0,
11236 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
11237 );
11238
11239 let autoscroll = self
11240 .selections
11241 .all::<Point>(cx)
11242 .iter()
11243 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
11244
11245 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
11246 }
11247
11248 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11249 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11250 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
11251 }
11252
11253 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11254 let selections = self.selections.all::<Point>(cx);
11255 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11256 let line_mode = self.selections.line_mode;
11257 let ranges = selections
11258 .into_iter()
11259 .map(|s| {
11260 if line_mode {
11261 let start = Point::new(s.start.row, 0);
11262 let end = Point::new(
11263 s.end.row,
11264 display_map
11265 .buffer_snapshot
11266 .line_len(MultiBufferRow(s.end.row)),
11267 );
11268 Crease::simple(start..end, display_map.fold_placeholder.clone())
11269 } else {
11270 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
11271 }
11272 })
11273 .collect::<Vec<_>>();
11274 self.fold_creases(ranges, true, cx);
11275 }
11276
11277 pub fn fold_creases<T: ToOffset + Clone>(
11278 &mut self,
11279 creases: Vec<Crease<T>>,
11280 auto_scroll: bool,
11281 cx: &mut ViewContext<Self>,
11282 ) {
11283 if creases.is_empty() {
11284 return;
11285 }
11286
11287 let mut buffers_affected = HashMap::default();
11288 let multi_buffer = self.buffer().read(cx);
11289 for crease in &creases {
11290 if let Some((_, buffer, _)) =
11291 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
11292 {
11293 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11294 };
11295 }
11296
11297 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
11298
11299 if auto_scroll {
11300 self.request_autoscroll(Autoscroll::fit(), cx);
11301 }
11302
11303 for buffer in buffers_affected.into_values() {
11304 self.sync_expanded_diff_hunks(buffer, cx);
11305 }
11306
11307 cx.notify();
11308
11309 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11310 // Clear diagnostics block when folding a range that contains it.
11311 let snapshot = self.snapshot(cx);
11312 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11313 drop(snapshot);
11314 self.active_diagnostics = Some(active_diagnostics);
11315 self.dismiss_diagnostics(cx);
11316 } else {
11317 self.active_diagnostics = Some(active_diagnostics);
11318 }
11319 }
11320
11321 self.scrollbar_marker_state.dirty = true;
11322 }
11323
11324 /// Removes any folds whose ranges intersect any of the given ranges.
11325 pub fn unfold_ranges<T: ToOffset + Clone>(
11326 &mut self,
11327 ranges: &[Range<T>],
11328 inclusive: bool,
11329 auto_scroll: bool,
11330 cx: &mut ViewContext<Self>,
11331 ) {
11332 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11333 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11334 });
11335 }
11336
11337 /// Removes any folds with the given ranges.
11338 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11339 &mut self,
11340 ranges: &[Range<T>],
11341 type_id: TypeId,
11342 auto_scroll: bool,
11343 cx: &mut ViewContext<Self>,
11344 ) {
11345 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11346 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11347 });
11348 }
11349
11350 fn remove_folds_with<T: ToOffset + Clone>(
11351 &mut self,
11352 ranges: &[Range<T>],
11353 auto_scroll: bool,
11354 cx: &mut ViewContext<Self>,
11355 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11356 ) {
11357 if ranges.is_empty() {
11358 return;
11359 }
11360
11361 let mut buffers_affected = HashMap::default();
11362 let multi_buffer = self.buffer().read(cx);
11363 for range in ranges {
11364 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11365 buffers_affected.insert(buffer.read(cx).remote_id(), buffer);
11366 };
11367 }
11368
11369 self.display_map.update(cx, update);
11370
11371 if auto_scroll {
11372 self.request_autoscroll(Autoscroll::fit(), cx);
11373 }
11374
11375 for buffer in buffers_affected.into_values() {
11376 self.sync_expanded_diff_hunks(buffer, cx);
11377 }
11378
11379 cx.notify();
11380 self.scrollbar_marker_state.dirty = true;
11381 self.active_indent_guides_state.dirty = true;
11382 }
11383
11384 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11385 self.display_map.read(cx).fold_placeholder.clone()
11386 }
11387
11388 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11389 if hovered != self.gutter_hovered {
11390 self.gutter_hovered = hovered;
11391 cx.notify();
11392 }
11393 }
11394
11395 pub fn insert_blocks(
11396 &mut self,
11397 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11398 autoscroll: Option<Autoscroll>,
11399 cx: &mut ViewContext<Self>,
11400 ) -> Vec<CustomBlockId> {
11401 let blocks = self
11402 .display_map
11403 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11404 if let Some(autoscroll) = autoscroll {
11405 self.request_autoscroll(autoscroll, cx);
11406 }
11407 cx.notify();
11408 blocks
11409 }
11410
11411 pub fn resize_blocks(
11412 &mut self,
11413 heights: HashMap<CustomBlockId, u32>,
11414 autoscroll: Option<Autoscroll>,
11415 cx: &mut ViewContext<Self>,
11416 ) {
11417 self.display_map
11418 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11419 if let Some(autoscroll) = autoscroll {
11420 self.request_autoscroll(autoscroll, cx);
11421 }
11422 cx.notify();
11423 }
11424
11425 pub fn replace_blocks(
11426 &mut self,
11427 renderers: HashMap<CustomBlockId, RenderBlock>,
11428 autoscroll: Option<Autoscroll>,
11429 cx: &mut ViewContext<Self>,
11430 ) {
11431 self.display_map
11432 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11433 if let Some(autoscroll) = autoscroll {
11434 self.request_autoscroll(autoscroll, cx);
11435 }
11436 cx.notify();
11437 }
11438
11439 pub fn remove_blocks(
11440 &mut self,
11441 block_ids: HashSet<CustomBlockId>,
11442 autoscroll: Option<Autoscroll>,
11443 cx: &mut ViewContext<Self>,
11444 ) {
11445 self.display_map.update(cx, |display_map, cx| {
11446 display_map.remove_blocks(block_ids, cx)
11447 });
11448 if let Some(autoscroll) = autoscroll {
11449 self.request_autoscroll(autoscroll, cx);
11450 }
11451 cx.notify();
11452 }
11453
11454 pub fn row_for_block(
11455 &self,
11456 block_id: CustomBlockId,
11457 cx: &mut ViewContext<Self>,
11458 ) -> Option<DisplayRow> {
11459 self.display_map
11460 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11461 }
11462
11463 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11464 self.focused_block = Some(focused_block);
11465 }
11466
11467 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11468 self.focused_block.take()
11469 }
11470
11471 pub fn insert_creases(
11472 &mut self,
11473 creases: impl IntoIterator<Item = Crease<Anchor>>,
11474 cx: &mut ViewContext<Self>,
11475 ) -> Vec<CreaseId> {
11476 self.display_map
11477 .update(cx, |map, cx| map.insert_creases(creases, cx))
11478 }
11479
11480 pub fn remove_creases(
11481 &mut self,
11482 ids: impl IntoIterator<Item = CreaseId>,
11483 cx: &mut ViewContext<Self>,
11484 ) {
11485 self.display_map
11486 .update(cx, |map, cx| map.remove_creases(ids, cx));
11487 }
11488
11489 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11490 self.display_map
11491 .update(cx, |map, cx| map.snapshot(cx))
11492 .longest_row()
11493 }
11494
11495 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11496 self.display_map
11497 .update(cx, |map, cx| map.snapshot(cx))
11498 .max_point()
11499 }
11500
11501 pub fn text(&self, cx: &AppContext) -> String {
11502 self.buffer.read(cx).read(cx).text()
11503 }
11504
11505 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11506 let text = self.text(cx);
11507 let text = text.trim();
11508
11509 if text.is_empty() {
11510 return None;
11511 }
11512
11513 Some(text.to_string())
11514 }
11515
11516 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11517 self.transact(cx, |this, cx| {
11518 this.buffer
11519 .read(cx)
11520 .as_singleton()
11521 .expect("you can only call set_text on editors for singleton buffers")
11522 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11523 });
11524 }
11525
11526 pub fn display_text(&self, cx: &mut AppContext) -> String {
11527 self.display_map
11528 .update(cx, |map, cx| map.snapshot(cx))
11529 .text()
11530 }
11531
11532 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11533 let mut wrap_guides = smallvec::smallvec![];
11534
11535 if self.show_wrap_guides == Some(false) {
11536 return wrap_guides;
11537 }
11538
11539 let settings = self.buffer.read(cx).settings_at(0, cx);
11540 if settings.show_wrap_guides {
11541 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11542 wrap_guides.push((soft_wrap as usize, true));
11543 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11544 wrap_guides.push((soft_wrap as usize, true));
11545 }
11546 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11547 }
11548
11549 wrap_guides
11550 }
11551
11552 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11553 let settings = self.buffer.read(cx).settings_at(0, cx);
11554 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11555 match mode {
11556 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11557 SoftWrap::None
11558 }
11559 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11560 language_settings::SoftWrap::PreferredLineLength => {
11561 SoftWrap::Column(settings.preferred_line_length)
11562 }
11563 language_settings::SoftWrap::Bounded => {
11564 SoftWrap::Bounded(settings.preferred_line_length)
11565 }
11566 }
11567 }
11568
11569 pub fn set_soft_wrap_mode(
11570 &mut self,
11571 mode: language_settings::SoftWrap,
11572 cx: &mut ViewContext<Self>,
11573 ) {
11574 self.soft_wrap_mode_override = Some(mode);
11575 cx.notify();
11576 }
11577
11578 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11579 self.text_style_refinement = Some(style);
11580 }
11581
11582 /// called by the Element so we know what style we were most recently rendered with.
11583 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11584 let rem_size = cx.rem_size();
11585 self.display_map.update(cx, |map, cx| {
11586 map.set_font(
11587 style.text.font(),
11588 style.text.font_size.to_pixels(rem_size),
11589 cx,
11590 )
11591 });
11592 self.style = Some(style);
11593 }
11594
11595 pub fn style(&self) -> Option<&EditorStyle> {
11596 self.style.as_ref()
11597 }
11598
11599 // Called by the element. This method is not designed to be called outside of the editor
11600 // element's layout code because it does not notify when rewrapping is computed synchronously.
11601 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11602 self.display_map
11603 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11604 }
11605
11606 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11607 if self.soft_wrap_mode_override.is_some() {
11608 self.soft_wrap_mode_override.take();
11609 } else {
11610 let soft_wrap = match self.soft_wrap_mode(cx) {
11611 SoftWrap::GitDiff => return,
11612 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11613 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11614 language_settings::SoftWrap::None
11615 }
11616 };
11617 self.soft_wrap_mode_override = Some(soft_wrap);
11618 }
11619 cx.notify();
11620 }
11621
11622 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11623 let Some(workspace) = self.workspace() else {
11624 return;
11625 };
11626 let fs = workspace.read(cx).app_state().fs.clone();
11627 let current_show = TabBarSettings::get_global(cx).show;
11628 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11629 setting.show = Some(!current_show);
11630 });
11631 }
11632
11633 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11634 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11635 self.buffer
11636 .read(cx)
11637 .settings_at(0, cx)
11638 .indent_guides
11639 .enabled
11640 });
11641 self.show_indent_guides = Some(!currently_enabled);
11642 cx.notify();
11643 }
11644
11645 fn should_show_indent_guides(&self) -> Option<bool> {
11646 self.show_indent_guides
11647 }
11648
11649 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11650 let mut editor_settings = EditorSettings::get_global(cx).clone();
11651 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11652 EditorSettings::override_global(editor_settings, cx);
11653 }
11654
11655 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11656 self.use_relative_line_numbers
11657 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11658 }
11659
11660 pub fn toggle_relative_line_numbers(
11661 &mut self,
11662 _: &ToggleRelativeLineNumbers,
11663 cx: &mut ViewContext<Self>,
11664 ) {
11665 let is_relative = self.should_use_relative_line_numbers(cx);
11666 self.set_relative_line_number(Some(!is_relative), cx)
11667 }
11668
11669 pub fn set_relative_line_number(
11670 &mut self,
11671 is_relative: Option<bool>,
11672 cx: &mut ViewContext<Self>,
11673 ) {
11674 self.use_relative_line_numbers = is_relative;
11675 cx.notify();
11676 }
11677
11678 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11679 self.show_gutter = show_gutter;
11680 cx.notify();
11681 }
11682
11683 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11684 self.show_line_numbers = Some(show_line_numbers);
11685 cx.notify();
11686 }
11687
11688 pub fn set_show_git_diff_gutter(
11689 &mut self,
11690 show_git_diff_gutter: bool,
11691 cx: &mut ViewContext<Self>,
11692 ) {
11693 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11694 cx.notify();
11695 }
11696
11697 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11698 self.show_code_actions = Some(show_code_actions);
11699 cx.notify();
11700 }
11701
11702 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11703 self.show_runnables = Some(show_runnables);
11704 cx.notify();
11705 }
11706
11707 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11708 if self.display_map.read(cx).masked != masked {
11709 self.display_map.update(cx, |map, _| map.masked = masked);
11710 }
11711 cx.notify()
11712 }
11713
11714 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11715 self.show_wrap_guides = Some(show_wrap_guides);
11716 cx.notify();
11717 }
11718
11719 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11720 self.show_indent_guides = Some(show_indent_guides);
11721 cx.notify();
11722 }
11723
11724 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11725 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11726 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11727 if let Some(dir) = file.abs_path(cx).parent() {
11728 return Some(dir.to_owned());
11729 }
11730 }
11731
11732 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11733 return Some(project_path.path.to_path_buf());
11734 }
11735 }
11736
11737 None
11738 }
11739
11740 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11741 self.active_excerpt(cx)?
11742 .1
11743 .read(cx)
11744 .file()
11745 .and_then(|f| f.as_local())
11746 }
11747
11748 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11749 if let Some(target) = self.target_file(cx) {
11750 cx.reveal_path(&target.abs_path(cx));
11751 }
11752 }
11753
11754 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11755 if let Some(file) = self.target_file(cx) {
11756 if let Some(path) = file.abs_path(cx).to_str() {
11757 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11758 }
11759 }
11760 }
11761
11762 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11763 if let Some(file) = self.target_file(cx) {
11764 if let Some(path) = file.path().to_str() {
11765 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11766 }
11767 }
11768 }
11769
11770 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11771 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11772
11773 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11774 self.start_git_blame(true, cx);
11775 }
11776
11777 cx.notify();
11778 }
11779
11780 pub fn toggle_git_blame_inline(
11781 &mut self,
11782 _: &ToggleGitBlameInline,
11783 cx: &mut ViewContext<Self>,
11784 ) {
11785 self.toggle_git_blame_inline_internal(true, cx);
11786 cx.notify();
11787 }
11788
11789 pub fn git_blame_inline_enabled(&self) -> bool {
11790 self.git_blame_inline_enabled
11791 }
11792
11793 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11794 self.show_selection_menu = self
11795 .show_selection_menu
11796 .map(|show_selections_menu| !show_selections_menu)
11797 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11798
11799 cx.notify();
11800 }
11801
11802 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11803 self.show_selection_menu
11804 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11805 }
11806
11807 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11808 if let Some(project) = self.project.as_ref() {
11809 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11810 return;
11811 };
11812
11813 if buffer.read(cx).file().is_none() {
11814 return;
11815 }
11816
11817 let focused = self.focus_handle(cx).contains_focused(cx);
11818
11819 let project = project.clone();
11820 let blame =
11821 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11822 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11823 self.blame = Some(blame);
11824 }
11825 }
11826
11827 fn toggle_git_blame_inline_internal(
11828 &mut self,
11829 user_triggered: bool,
11830 cx: &mut ViewContext<Self>,
11831 ) {
11832 if self.git_blame_inline_enabled {
11833 self.git_blame_inline_enabled = false;
11834 self.show_git_blame_inline = false;
11835 self.show_git_blame_inline_delay_task.take();
11836 } else {
11837 self.git_blame_inline_enabled = true;
11838 self.start_git_blame_inline(user_triggered, cx);
11839 }
11840
11841 cx.notify();
11842 }
11843
11844 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11845 self.start_git_blame(user_triggered, cx);
11846
11847 if ProjectSettings::get_global(cx)
11848 .git
11849 .inline_blame_delay()
11850 .is_some()
11851 {
11852 self.start_inline_blame_timer(cx);
11853 } else {
11854 self.show_git_blame_inline = true
11855 }
11856 }
11857
11858 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11859 self.blame.as_ref()
11860 }
11861
11862 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11863 self.show_git_blame_gutter && self.has_blame_entries(cx)
11864 }
11865
11866 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11867 self.show_git_blame_inline
11868 && self.focus_handle.is_focused(cx)
11869 && !self.newest_selection_head_on_empty_line(cx)
11870 && self.has_blame_entries(cx)
11871 }
11872
11873 pub fn render_active_line_trailer(
11874 &mut self,
11875 style: &EditorStyle,
11876 cx: &mut WindowContext,
11877 ) -> Option<AnyElement> {
11878 let selection = self.selections.newest::<Point>(cx);
11879 if !selection.is_empty() {
11880 return None;
11881 };
11882
11883 let snapshot = self.buffer.read(cx).snapshot(cx);
11884 let buffer_row = MultiBufferRow(selection.head().row);
11885
11886 if snapshot.line_len(buffer_row) != 0 || self.has_active_inline_completion(cx) {
11887 return None;
11888 }
11889
11890 let focus_handle = self.focus_handle.clone();
11891 self.active_line_trailer_provider
11892 .as_mut()?
11893 .render_active_line_trailer(style, &focus_handle, cx)
11894 }
11895
11896 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11897 self.blame()
11898 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11899 }
11900
11901 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11902 let cursor_anchor = self.selections.newest_anchor().head();
11903
11904 let snapshot = self.buffer.read(cx).snapshot(cx);
11905 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11906
11907 snapshot.line_len(buffer_row) == 0
11908 }
11909
11910 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11911 let buffer_and_selection = maybe!({
11912 let selection = self.selections.newest::<Point>(cx);
11913 let selection_range = selection.range();
11914
11915 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11916 (buffer, selection_range.start.row..selection_range.end.row)
11917 } else {
11918 let buffer_ranges = self
11919 .buffer()
11920 .read(cx)
11921 .range_to_buffer_ranges(selection_range, cx);
11922
11923 let (buffer, range, _) = if selection.reversed {
11924 buffer_ranges.first()
11925 } else {
11926 buffer_ranges.last()
11927 }?;
11928
11929 let snapshot = buffer.read(cx).snapshot();
11930 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11931 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11932 (buffer.clone(), selection)
11933 };
11934
11935 Some((buffer, selection))
11936 });
11937
11938 let Some((buffer, selection)) = buffer_and_selection else {
11939 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11940 };
11941
11942 let Some(project) = self.project.as_ref() else {
11943 return Task::ready(Err(anyhow!("editor does not have project")));
11944 };
11945
11946 project.update(cx, |project, cx| {
11947 project.get_permalink_to_line(&buffer, selection, cx)
11948 })
11949 }
11950
11951 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11952 let permalink_task = self.get_permalink_to_line(cx);
11953 let workspace = self.workspace();
11954
11955 cx.spawn(|_, mut cx| async move {
11956 match permalink_task.await {
11957 Ok(permalink) => {
11958 cx.update(|cx| {
11959 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11960 })
11961 .ok();
11962 }
11963 Err(err) => {
11964 let message = format!("Failed to copy permalink: {err}");
11965
11966 Err::<(), anyhow::Error>(err).log_err();
11967
11968 if let Some(workspace) = workspace {
11969 workspace
11970 .update(&mut cx, |workspace, cx| {
11971 struct CopyPermalinkToLine;
11972
11973 workspace.show_toast(
11974 Toast::new(
11975 NotificationId::unique::<CopyPermalinkToLine>(),
11976 message,
11977 ),
11978 cx,
11979 )
11980 })
11981 .ok();
11982 }
11983 }
11984 }
11985 })
11986 .detach();
11987 }
11988
11989 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11990 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11991 if let Some(file) = self.target_file(cx) {
11992 if let Some(path) = file.path().to_str() {
11993 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11994 }
11995 }
11996 }
11997
11998 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11999 let permalink_task = self.get_permalink_to_line(cx);
12000 let workspace = self.workspace();
12001
12002 cx.spawn(|_, mut cx| async move {
12003 match permalink_task.await {
12004 Ok(permalink) => {
12005 cx.update(|cx| {
12006 cx.open_url(permalink.as_ref());
12007 })
12008 .ok();
12009 }
12010 Err(err) => {
12011 let message = format!("Failed to open permalink: {err}");
12012
12013 Err::<(), anyhow::Error>(err).log_err();
12014
12015 if let Some(workspace) = workspace {
12016 workspace
12017 .update(&mut cx, |workspace, cx| {
12018 struct OpenPermalinkToLine;
12019
12020 workspace.show_toast(
12021 Toast::new(
12022 NotificationId::unique::<OpenPermalinkToLine>(),
12023 message,
12024 ),
12025 cx,
12026 )
12027 })
12028 .ok();
12029 }
12030 }
12031 }
12032 })
12033 .detach();
12034 }
12035
12036 /// Adds a row highlight for the given range. If a row has multiple highlights, the
12037 /// last highlight added will be used.
12038 ///
12039 /// If the range ends at the beginning of a line, then that line will not be highlighted.
12040 pub fn highlight_rows<T: 'static>(
12041 &mut self,
12042 range: Range<Anchor>,
12043 color: Hsla,
12044 should_autoscroll: bool,
12045 cx: &mut ViewContext<Self>,
12046 ) {
12047 let snapshot = self.buffer().read(cx).snapshot(cx);
12048 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12049 let ix = row_highlights.binary_search_by(|highlight| {
12050 Ordering::Equal
12051 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
12052 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
12053 });
12054
12055 if let Err(mut ix) = ix {
12056 let index = post_inc(&mut self.highlight_order);
12057
12058 // If this range intersects with the preceding highlight, then merge it with
12059 // the preceding highlight. Otherwise insert a new highlight.
12060 let mut merged = false;
12061 if ix > 0 {
12062 let prev_highlight = &mut row_highlights[ix - 1];
12063 if prev_highlight
12064 .range
12065 .end
12066 .cmp(&range.start, &snapshot)
12067 .is_ge()
12068 {
12069 ix -= 1;
12070 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
12071 prev_highlight.range.end = range.end;
12072 }
12073 merged = true;
12074 prev_highlight.index = index;
12075 prev_highlight.color = color;
12076 prev_highlight.should_autoscroll = should_autoscroll;
12077 }
12078 }
12079
12080 if !merged {
12081 row_highlights.insert(
12082 ix,
12083 RowHighlight {
12084 range: range.clone(),
12085 index,
12086 color,
12087 should_autoscroll,
12088 },
12089 );
12090 }
12091
12092 // If any of the following highlights intersect with this one, merge them.
12093 while let Some(next_highlight) = row_highlights.get(ix + 1) {
12094 let highlight = &row_highlights[ix];
12095 if next_highlight
12096 .range
12097 .start
12098 .cmp(&highlight.range.end, &snapshot)
12099 .is_le()
12100 {
12101 if next_highlight
12102 .range
12103 .end
12104 .cmp(&highlight.range.end, &snapshot)
12105 .is_gt()
12106 {
12107 row_highlights[ix].range.end = next_highlight.range.end;
12108 }
12109 row_highlights.remove(ix + 1);
12110 } else {
12111 break;
12112 }
12113 }
12114 }
12115 }
12116
12117 /// Remove any highlighted row ranges of the given type that intersect the
12118 /// given ranges.
12119 pub fn remove_highlighted_rows<T: 'static>(
12120 &mut self,
12121 ranges_to_remove: Vec<Range<Anchor>>,
12122 cx: &mut ViewContext<Self>,
12123 ) {
12124 let snapshot = self.buffer().read(cx).snapshot(cx);
12125 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12126 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
12127 row_highlights.retain(|highlight| {
12128 while let Some(range_to_remove) = ranges_to_remove.peek() {
12129 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
12130 Ordering::Less | Ordering::Equal => {
12131 ranges_to_remove.next();
12132 }
12133 Ordering::Greater => {
12134 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
12135 Ordering::Less | Ordering::Equal => {
12136 return false;
12137 }
12138 Ordering::Greater => break,
12139 }
12140 }
12141 }
12142 }
12143
12144 true
12145 })
12146 }
12147
12148 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
12149 pub fn clear_row_highlights<T: 'static>(&mut self) {
12150 self.highlighted_rows.remove(&TypeId::of::<T>());
12151 }
12152
12153 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
12154 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
12155 self.highlighted_rows
12156 .get(&TypeId::of::<T>())
12157 .map_or(&[] as &[_], |vec| vec.as_slice())
12158 .iter()
12159 .map(|highlight| (highlight.range.clone(), highlight.color))
12160 }
12161
12162 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
12163 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
12164 /// Allows to ignore certain kinds of highlights.
12165 pub fn highlighted_display_rows(
12166 &mut self,
12167 cx: &mut WindowContext,
12168 ) -> BTreeMap<DisplayRow, Hsla> {
12169 let snapshot = self.snapshot(cx);
12170 let mut used_highlight_orders = HashMap::default();
12171 self.highlighted_rows
12172 .iter()
12173 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
12174 .fold(
12175 BTreeMap::<DisplayRow, Hsla>::new(),
12176 |mut unique_rows, highlight| {
12177 let start = highlight.range.start.to_display_point(&snapshot);
12178 let end = highlight.range.end.to_display_point(&snapshot);
12179 let start_row = start.row().0;
12180 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12181 && end.column() == 0
12182 {
12183 end.row().0.saturating_sub(1)
12184 } else {
12185 end.row().0
12186 };
12187 for row in start_row..=end_row {
12188 let used_index =
12189 used_highlight_orders.entry(row).or_insert(highlight.index);
12190 if highlight.index >= *used_index {
12191 *used_index = highlight.index;
12192 unique_rows.insert(DisplayRow(row), highlight.color);
12193 }
12194 }
12195 unique_rows
12196 },
12197 )
12198 }
12199
12200 pub fn highlighted_display_row_for_autoscroll(
12201 &self,
12202 snapshot: &DisplaySnapshot,
12203 ) -> Option<DisplayRow> {
12204 self.highlighted_rows
12205 .values()
12206 .flat_map(|highlighted_rows| highlighted_rows.iter())
12207 .filter_map(|highlight| {
12208 if highlight.should_autoscroll {
12209 Some(highlight.range.start.to_display_point(snapshot).row())
12210 } else {
12211 None
12212 }
12213 })
12214 .min()
12215 }
12216
12217 pub fn set_search_within_ranges(
12218 &mut self,
12219 ranges: &[Range<Anchor>],
12220 cx: &mut ViewContext<Self>,
12221 ) {
12222 self.highlight_background::<SearchWithinRange>(
12223 ranges,
12224 |colors| colors.editor_document_highlight_read_background,
12225 cx,
12226 )
12227 }
12228
12229 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12230 self.breadcrumb_header = Some(new_header);
12231 }
12232
12233 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12234 self.clear_background_highlights::<SearchWithinRange>(cx);
12235 }
12236
12237 pub fn highlight_background<T: 'static>(
12238 &mut self,
12239 ranges: &[Range<Anchor>],
12240 color_fetcher: fn(&ThemeColors) -> Hsla,
12241 cx: &mut ViewContext<Self>,
12242 ) {
12243 self.background_highlights
12244 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12245 self.scrollbar_marker_state.dirty = true;
12246 cx.notify();
12247 }
12248
12249 pub fn clear_background_highlights<T: 'static>(
12250 &mut self,
12251 cx: &mut ViewContext<Self>,
12252 ) -> Option<BackgroundHighlight> {
12253 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12254 if !text_highlights.1.is_empty() {
12255 self.scrollbar_marker_state.dirty = true;
12256 cx.notify();
12257 }
12258 Some(text_highlights)
12259 }
12260
12261 pub fn highlight_gutter<T: 'static>(
12262 &mut self,
12263 ranges: &[Range<Anchor>],
12264 color_fetcher: fn(&AppContext) -> Hsla,
12265 cx: &mut ViewContext<Self>,
12266 ) {
12267 self.gutter_highlights
12268 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12269 cx.notify();
12270 }
12271
12272 pub fn clear_gutter_highlights<T: 'static>(
12273 &mut self,
12274 cx: &mut ViewContext<Self>,
12275 ) -> Option<GutterHighlight> {
12276 cx.notify();
12277 self.gutter_highlights.remove(&TypeId::of::<T>())
12278 }
12279
12280 #[cfg(feature = "test-support")]
12281 pub fn all_text_background_highlights(
12282 &mut self,
12283 cx: &mut ViewContext<Self>,
12284 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12285 let snapshot = self.snapshot(cx);
12286 let buffer = &snapshot.buffer_snapshot;
12287 let start = buffer.anchor_before(0);
12288 let end = buffer.anchor_after(buffer.len());
12289 let theme = cx.theme().colors();
12290 self.background_highlights_in_range(start..end, &snapshot, theme)
12291 }
12292
12293 #[cfg(feature = "test-support")]
12294 pub fn search_background_highlights(
12295 &mut self,
12296 cx: &mut ViewContext<Self>,
12297 ) -> Vec<Range<Point>> {
12298 let snapshot = self.buffer().read(cx).snapshot(cx);
12299
12300 let highlights = self
12301 .background_highlights
12302 .get(&TypeId::of::<items::BufferSearchHighlights>());
12303
12304 if let Some((_color, ranges)) = highlights {
12305 ranges
12306 .iter()
12307 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12308 .collect_vec()
12309 } else {
12310 vec![]
12311 }
12312 }
12313
12314 fn document_highlights_for_position<'a>(
12315 &'a self,
12316 position: Anchor,
12317 buffer: &'a MultiBufferSnapshot,
12318 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12319 let read_highlights = self
12320 .background_highlights
12321 .get(&TypeId::of::<DocumentHighlightRead>())
12322 .map(|h| &h.1);
12323 let write_highlights = self
12324 .background_highlights
12325 .get(&TypeId::of::<DocumentHighlightWrite>())
12326 .map(|h| &h.1);
12327 let left_position = position.bias_left(buffer);
12328 let right_position = position.bias_right(buffer);
12329 read_highlights
12330 .into_iter()
12331 .chain(write_highlights)
12332 .flat_map(move |ranges| {
12333 let start_ix = match ranges.binary_search_by(|probe| {
12334 let cmp = probe.end.cmp(&left_position, buffer);
12335 if cmp.is_ge() {
12336 Ordering::Greater
12337 } else {
12338 Ordering::Less
12339 }
12340 }) {
12341 Ok(i) | Err(i) => i,
12342 };
12343
12344 ranges[start_ix..]
12345 .iter()
12346 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12347 })
12348 }
12349
12350 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12351 self.background_highlights
12352 .get(&TypeId::of::<T>())
12353 .map_or(false, |(_, highlights)| !highlights.is_empty())
12354 }
12355
12356 pub fn background_highlights_in_range(
12357 &self,
12358 search_range: Range<Anchor>,
12359 display_snapshot: &DisplaySnapshot,
12360 theme: &ThemeColors,
12361 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12362 let mut results = Vec::new();
12363 for (color_fetcher, ranges) in self.background_highlights.values() {
12364 let color = color_fetcher(theme);
12365 let start_ix = match ranges.binary_search_by(|probe| {
12366 let cmp = probe
12367 .end
12368 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12369 if cmp.is_gt() {
12370 Ordering::Greater
12371 } else {
12372 Ordering::Less
12373 }
12374 }) {
12375 Ok(i) | Err(i) => i,
12376 };
12377 for range in &ranges[start_ix..] {
12378 if range
12379 .start
12380 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12381 .is_ge()
12382 {
12383 break;
12384 }
12385
12386 let start = range.start.to_display_point(display_snapshot);
12387 let end = range.end.to_display_point(display_snapshot);
12388 results.push((start..end, color))
12389 }
12390 }
12391 results
12392 }
12393
12394 pub fn background_highlight_row_ranges<T: 'static>(
12395 &self,
12396 search_range: Range<Anchor>,
12397 display_snapshot: &DisplaySnapshot,
12398 count: usize,
12399 ) -> Vec<RangeInclusive<DisplayPoint>> {
12400 let mut results = Vec::new();
12401 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12402 return vec![];
12403 };
12404
12405 let start_ix = match ranges.binary_search_by(|probe| {
12406 let cmp = probe
12407 .end
12408 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12409 if cmp.is_gt() {
12410 Ordering::Greater
12411 } else {
12412 Ordering::Less
12413 }
12414 }) {
12415 Ok(i) | Err(i) => i,
12416 };
12417 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12418 if let (Some(start_display), Some(end_display)) = (start, end) {
12419 results.push(
12420 start_display.to_display_point(display_snapshot)
12421 ..=end_display.to_display_point(display_snapshot),
12422 );
12423 }
12424 };
12425 let mut start_row: Option<Point> = None;
12426 let mut end_row: Option<Point> = None;
12427 if ranges.len() > count {
12428 return Vec::new();
12429 }
12430 for range in &ranges[start_ix..] {
12431 if range
12432 .start
12433 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12434 .is_ge()
12435 {
12436 break;
12437 }
12438 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12439 if let Some(current_row) = &end_row {
12440 if end.row == current_row.row {
12441 continue;
12442 }
12443 }
12444 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12445 if start_row.is_none() {
12446 assert_eq!(end_row, None);
12447 start_row = Some(start);
12448 end_row = Some(end);
12449 continue;
12450 }
12451 if let Some(current_end) = end_row.as_mut() {
12452 if start.row > current_end.row + 1 {
12453 push_region(start_row, end_row);
12454 start_row = Some(start);
12455 end_row = Some(end);
12456 } else {
12457 // Merge two hunks.
12458 *current_end = end;
12459 }
12460 } else {
12461 unreachable!();
12462 }
12463 }
12464 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12465 push_region(start_row, end_row);
12466 results
12467 }
12468
12469 pub fn gutter_highlights_in_range(
12470 &self,
12471 search_range: Range<Anchor>,
12472 display_snapshot: &DisplaySnapshot,
12473 cx: &AppContext,
12474 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12475 let mut results = Vec::new();
12476 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12477 let color = color_fetcher(cx);
12478 let start_ix = match ranges.binary_search_by(|probe| {
12479 let cmp = probe
12480 .end
12481 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12482 if cmp.is_gt() {
12483 Ordering::Greater
12484 } else {
12485 Ordering::Less
12486 }
12487 }) {
12488 Ok(i) | Err(i) => i,
12489 };
12490 for range in &ranges[start_ix..] {
12491 if range
12492 .start
12493 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12494 .is_ge()
12495 {
12496 break;
12497 }
12498
12499 let start = range.start.to_display_point(display_snapshot);
12500 let end = range.end.to_display_point(display_snapshot);
12501 results.push((start..end, color))
12502 }
12503 }
12504 results
12505 }
12506
12507 /// Get the text ranges corresponding to the redaction query
12508 pub fn redacted_ranges(
12509 &self,
12510 search_range: Range<Anchor>,
12511 display_snapshot: &DisplaySnapshot,
12512 cx: &WindowContext,
12513 ) -> Vec<Range<DisplayPoint>> {
12514 display_snapshot
12515 .buffer_snapshot
12516 .redacted_ranges(search_range, |file| {
12517 if let Some(file) = file {
12518 file.is_private()
12519 && EditorSettings::get(
12520 Some(SettingsLocation {
12521 worktree_id: file.worktree_id(cx),
12522 path: file.path().as_ref(),
12523 }),
12524 cx,
12525 )
12526 .redact_private_values
12527 } else {
12528 false
12529 }
12530 })
12531 .map(|range| {
12532 range.start.to_display_point(display_snapshot)
12533 ..range.end.to_display_point(display_snapshot)
12534 })
12535 .collect()
12536 }
12537
12538 pub fn highlight_text<T: 'static>(
12539 &mut self,
12540 ranges: Vec<Range<Anchor>>,
12541 style: HighlightStyle,
12542 cx: &mut ViewContext<Self>,
12543 ) {
12544 self.display_map.update(cx, |map, _| {
12545 map.highlight_text(TypeId::of::<T>(), ranges, style)
12546 });
12547 cx.notify();
12548 }
12549
12550 pub(crate) fn highlight_inlays<T: 'static>(
12551 &mut self,
12552 highlights: Vec<InlayHighlight>,
12553 style: HighlightStyle,
12554 cx: &mut ViewContext<Self>,
12555 ) {
12556 self.display_map.update(cx, |map, _| {
12557 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12558 });
12559 cx.notify();
12560 }
12561
12562 pub fn text_highlights<'a, T: 'static>(
12563 &'a self,
12564 cx: &'a AppContext,
12565 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12566 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12567 }
12568
12569 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12570 let cleared = self
12571 .display_map
12572 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12573 if cleared {
12574 cx.notify();
12575 }
12576 }
12577
12578 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12579 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12580 && self.focus_handle.is_focused(cx)
12581 }
12582
12583 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12584 self.show_cursor_when_unfocused = is_enabled;
12585 cx.notify();
12586 }
12587
12588 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12589 cx.notify();
12590 }
12591
12592 fn on_buffer_event(
12593 &mut self,
12594 multibuffer: Model<MultiBuffer>,
12595 event: &multi_buffer::Event,
12596 cx: &mut ViewContext<Self>,
12597 ) {
12598 match event {
12599 multi_buffer::Event::Edited {
12600 singleton_buffer_edited,
12601 } => {
12602 self.scrollbar_marker_state.dirty = true;
12603 self.active_indent_guides_state.dirty = true;
12604 self.refresh_active_diagnostics(cx);
12605 self.refresh_code_actions(cx);
12606 if self.has_active_inline_completion(cx) {
12607 self.update_visible_inline_completion(cx);
12608 }
12609 cx.emit(EditorEvent::BufferEdited);
12610 cx.emit(SearchEvent::MatchesInvalidated);
12611 if *singleton_buffer_edited {
12612 if let Some(project) = &self.project {
12613 let project = project.read(cx);
12614 #[allow(clippy::mutable_key_type)]
12615 let languages_affected = multibuffer
12616 .read(cx)
12617 .all_buffers()
12618 .into_iter()
12619 .filter_map(|buffer| {
12620 let buffer = buffer.read(cx);
12621 let language = buffer.language()?;
12622 if project.is_local()
12623 && project.language_servers_for_buffer(buffer, cx).count() == 0
12624 {
12625 None
12626 } else {
12627 Some(language)
12628 }
12629 })
12630 .cloned()
12631 .collect::<HashSet<_>>();
12632 if !languages_affected.is_empty() {
12633 self.refresh_inlay_hints(
12634 InlayHintRefreshReason::BufferEdited(languages_affected),
12635 cx,
12636 );
12637 }
12638 }
12639 }
12640
12641 let Some(project) = &self.project else { return };
12642 let (telemetry, is_via_ssh) = {
12643 let project = project.read(cx);
12644 let telemetry = project.client().telemetry().clone();
12645 let is_via_ssh = project.is_via_ssh();
12646 (telemetry, is_via_ssh)
12647 };
12648 refresh_linked_ranges(self, cx);
12649 telemetry.log_edit_event("editor", is_via_ssh);
12650 }
12651 multi_buffer::Event::ExcerptsAdded {
12652 buffer,
12653 predecessor,
12654 excerpts,
12655 } => {
12656 self.tasks_update_task = Some(self.refresh_runnables(cx));
12657 cx.emit(EditorEvent::ExcerptsAdded {
12658 buffer: buffer.clone(),
12659 predecessor: *predecessor,
12660 excerpts: excerpts.clone(),
12661 });
12662 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12663 }
12664 multi_buffer::Event::ExcerptsRemoved { ids } => {
12665 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12666 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12667 }
12668 multi_buffer::Event::ExcerptsEdited { ids } => {
12669 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12670 }
12671 multi_buffer::Event::ExcerptsExpanded { ids } => {
12672 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12673 }
12674 multi_buffer::Event::Reparsed(buffer_id) => {
12675 self.tasks_update_task = Some(self.refresh_runnables(cx));
12676
12677 cx.emit(EditorEvent::Reparsed(*buffer_id));
12678 }
12679 multi_buffer::Event::LanguageChanged(buffer_id) => {
12680 linked_editing_ranges::refresh_linked_ranges(self, cx);
12681 cx.emit(EditorEvent::Reparsed(*buffer_id));
12682 cx.notify();
12683 }
12684 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12685 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12686 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12687 cx.emit(EditorEvent::TitleChanged)
12688 }
12689 multi_buffer::Event::DiffBaseChanged => {
12690 self.scrollbar_marker_state.dirty = true;
12691 cx.emit(EditorEvent::DiffBaseChanged);
12692 cx.notify();
12693 }
12694 multi_buffer::Event::DiffUpdated { buffer } => {
12695 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12696 cx.notify();
12697 }
12698 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12699 multi_buffer::Event::DiagnosticsUpdated => {
12700 self.refresh_active_diagnostics(cx);
12701 self.scrollbar_marker_state.dirty = true;
12702 cx.notify();
12703 }
12704 _ => {}
12705 };
12706 }
12707
12708 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12709 cx.notify();
12710 }
12711
12712 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12713 self.tasks_update_task = Some(self.refresh_runnables(cx));
12714 self.refresh_inline_completion(true, false, cx);
12715 self.refresh_inlay_hints(
12716 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12717 self.selections.newest_anchor().head(),
12718 &self.buffer.read(cx).snapshot(cx),
12719 cx,
12720 )),
12721 cx,
12722 );
12723
12724 let old_cursor_shape = self.cursor_shape;
12725
12726 {
12727 let editor_settings = EditorSettings::get_global(cx);
12728 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12729 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12730 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12731 }
12732
12733 if old_cursor_shape != self.cursor_shape {
12734 cx.emit(EditorEvent::CursorShapeChanged);
12735 }
12736
12737 let project_settings = ProjectSettings::get_global(cx);
12738 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12739
12740 if self.mode == EditorMode::Full {
12741 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12742 if self.git_blame_inline_enabled != inline_blame_enabled {
12743 self.toggle_git_blame_inline_internal(false, cx);
12744 }
12745 }
12746
12747 cx.notify();
12748 }
12749
12750 pub fn set_searchable(&mut self, searchable: bool) {
12751 self.searchable = searchable;
12752 }
12753
12754 pub fn searchable(&self) -> bool {
12755 self.searchable
12756 }
12757
12758 fn open_proposed_changes_editor(
12759 &mut self,
12760 _: &OpenProposedChangesEditor,
12761 cx: &mut ViewContext<Self>,
12762 ) {
12763 let Some(workspace) = self.workspace() else {
12764 cx.propagate();
12765 return;
12766 };
12767
12768 let selections = self.selections.all::<usize>(cx);
12769 let buffer = self.buffer.read(cx);
12770 let mut new_selections_by_buffer = HashMap::default();
12771 for selection in selections {
12772 for (buffer, range, _) in
12773 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12774 {
12775 let mut range = range.to_point(buffer.read(cx));
12776 range.start.column = 0;
12777 range.end.column = buffer.read(cx).line_len(range.end.row);
12778 new_selections_by_buffer
12779 .entry(buffer)
12780 .or_insert(Vec::new())
12781 .push(range)
12782 }
12783 }
12784
12785 let proposed_changes_buffers = new_selections_by_buffer
12786 .into_iter()
12787 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12788 .collect::<Vec<_>>();
12789 let proposed_changes_editor = cx.new_view(|cx| {
12790 ProposedChangesEditor::new(
12791 "Proposed changes",
12792 proposed_changes_buffers,
12793 self.project.clone(),
12794 cx,
12795 )
12796 });
12797
12798 cx.window_context().defer(move |cx| {
12799 workspace.update(cx, |workspace, cx| {
12800 workspace.active_pane().update(cx, |pane, cx| {
12801 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12802 });
12803 });
12804 });
12805 }
12806
12807 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12808 self.open_excerpts_common(None, true, cx)
12809 }
12810
12811 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12812 self.open_excerpts_common(None, false, cx)
12813 }
12814
12815 fn open_excerpts_common(
12816 &mut self,
12817 jump_data: Option<JumpData>,
12818 split: bool,
12819 cx: &mut ViewContext<Self>,
12820 ) {
12821 let Some(workspace) = self.workspace() else {
12822 cx.propagate();
12823 return;
12824 };
12825
12826 if self.buffer.read(cx).is_singleton() {
12827 cx.propagate();
12828 return;
12829 }
12830
12831 let mut new_selections_by_buffer = HashMap::default();
12832 match &jump_data {
12833 Some(jump_data) => {
12834 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12835 if let Some(buffer) = multi_buffer_snapshot
12836 .buffer_id_for_excerpt(jump_data.excerpt_id)
12837 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12838 {
12839 let buffer_snapshot = buffer.read(cx).snapshot();
12840 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12841 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12842 } else {
12843 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12844 };
12845 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12846 new_selections_by_buffer.insert(
12847 buffer,
12848 (
12849 vec![jump_to_offset..jump_to_offset],
12850 Some(jump_data.line_offset_from_top),
12851 ),
12852 );
12853 }
12854 }
12855 None => {
12856 let selections = self.selections.all::<usize>(cx);
12857 let buffer = self.buffer.read(cx);
12858 for selection in selections {
12859 for (mut buffer_handle, mut range, _) in
12860 buffer.range_to_buffer_ranges(selection.range(), cx)
12861 {
12862 // When editing branch buffers, jump to the corresponding location
12863 // in their base buffer.
12864 let buffer = buffer_handle.read(cx);
12865 if let Some(base_buffer) = buffer.diff_base_buffer() {
12866 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12867 buffer_handle = base_buffer;
12868 }
12869
12870 if selection.reversed {
12871 mem::swap(&mut range.start, &mut range.end);
12872 }
12873 new_selections_by_buffer
12874 .entry(buffer_handle)
12875 .or_insert((Vec::new(), None))
12876 .0
12877 .push(range)
12878 }
12879 }
12880 }
12881 }
12882
12883 if new_selections_by_buffer.is_empty() {
12884 return;
12885 }
12886
12887 // We defer the pane interaction because we ourselves are a workspace item
12888 // and activating a new item causes the pane to call a method on us reentrantly,
12889 // which panics if we're on the stack.
12890 cx.window_context().defer(move |cx| {
12891 workspace.update(cx, |workspace, cx| {
12892 let pane = if split {
12893 workspace.adjacent_pane(cx)
12894 } else {
12895 workspace.active_pane().clone()
12896 };
12897
12898 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12899 let editor =
12900 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12901 editor.update(cx, |editor, cx| {
12902 let autoscroll = match scroll_offset {
12903 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12904 None => Autoscroll::newest(),
12905 };
12906 let nav_history = editor.nav_history.take();
12907 editor.change_selections(Some(autoscroll), cx, |s| {
12908 s.select_ranges(ranges);
12909 });
12910 editor.nav_history = nav_history;
12911 });
12912 }
12913 })
12914 });
12915 }
12916
12917 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12918 let snapshot = self.buffer.read(cx).read(cx);
12919 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12920 Some(
12921 ranges
12922 .iter()
12923 .map(move |range| {
12924 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12925 })
12926 .collect(),
12927 )
12928 }
12929
12930 fn selection_replacement_ranges(
12931 &self,
12932 range: Range<OffsetUtf16>,
12933 cx: &mut AppContext,
12934 ) -> Vec<Range<OffsetUtf16>> {
12935 let selections = self.selections.all::<OffsetUtf16>(cx);
12936 let newest_selection = selections
12937 .iter()
12938 .max_by_key(|selection| selection.id)
12939 .unwrap();
12940 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12941 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12942 let snapshot = self.buffer.read(cx).read(cx);
12943 selections
12944 .into_iter()
12945 .map(|mut selection| {
12946 selection.start.0 =
12947 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12948 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12949 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12950 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12951 })
12952 .collect()
12953 }
12954
12955 fn report_editor_event(
12956 &self,
12957 operation: &'static str,
12958 file_extension: Option<String>,
12959 cx: &AppContext,
12960 ) {
12961 if cfg!(any(test, feature = "test-support")) {
12962 return;
12963 }
12964
12965 let Some(project) = &self.project else { return };
12966
12967 // If None, we are in a file without an extension
12968 let file = self
12969 .buffer
12970 .read(cx)
12971 .as_singleton()
12972 .and_then(|b| b.read(cx).file());
12973 let file_extension = file_extension.or(file
12974 .as_ref()
12975 .and_then(|file| Path::new(file.file_name(cx)).extension())
12976 .and_then(|e| e.to_str())
12977 .map(|a| a.to_string()));
12978
12979 let vim_mode = cx
12980 .global::<SettingsStore>()
12981 .raw_user_settings()
12982 .get("vim_mode")
12983 == Some(&serde_json::Value::Bool(true));
12984
12985 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12986 == language::language_settings::InlineCompletionProvider::Copilot;
12987 let copilot_enabled_for_language = self
12988 .buffer
12989 .read(cx)
12990 .settings_at(0, cx)
12991 .show_inline_completions;
12992
12993 let project = project.read(cx);
12994 let telemetry = project.client().telemetry().clone();
12995 telemetry.report_editor_event(
12996 file_extension,
12997 vim_mode,
12998 operation,
12999 copilot_enabled,
13000 copilot_enabled_for_language,
13001 project.is_via_ssh(),
13002 )
13003 }
13004
13005 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
13006 /// with each line being an array of {text, highlight} objects.
13007 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
13008 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
13009 return;
13010 };
13011
13012 #[derive(Serialize)]
13013 struct Chunk<'a> {
13014 text: String,
13015 highlight: Option<&'a str>,
13016 }
13017
13018 let snapshot = buffer.read(cx).snapshot();
13019 let range = self
13020 .selected_text_range(false, cx)
13021 .and_then(|selection| {
13022 if selection.range.is_empty() {
13023 None
13024 } else {
13025 Some(selection.range)
13026 }
13027 })
13028 .unwrap_or_else(|| 0..snapshot.len());
13029
13030 let chunks = snapshot.chunks(range, true);
13031 let mut lines = Vec::new();
13032 let mut line: VecDeque<Chunk> = VecDeque::new();
13033
13034 let Some(style) = self.style.as_ref() else {
13035 return;
13036 };
13037
13038 for chunk in chunks {
13039 let highlight = chunk
13040 .syntax_highlight_id
13041 .and_then(|id| id.name(&style.syntax));
13042 let mut chunk_lines = chunk.text.split('\n').peekable();
13043 while let Some(text) = chunk_lines.next() {
13044 let mut merged_with_last_token = false;
13045 if let Some(last_token) = line.back_mut() {
13046 if last_token.highlight == highlight {
13047 last_token.text.push_str(text);
13048 merged_with_last_token = true;
13049 }
13050 }
13051
13052 if !merged_with_last_token {
13053 line.push_back(Chunk {
13054 text: text.into(),
13055 highlight,
13056 });
13057 }
13058
13059 if chunk_lines.peek().is_some() {
13060 if line.len() > 1 && line.front().unwrap().text.is_empty() {
13061 line.pop_front();
13062 }
13063 if line.len() > 1 && line.back().unwrap().text.is_empty() {
13064 line.pop_back();
13065 }
13066
13067 lines.push(mem::take(&mut line));
13068 }
13069 }
13070 }
13071
13072 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
13073 return;
13074 };
13075 cx.write_to_clipboard(ClipboardItem::new_string(lines));
13076 }
13077
13078 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
13079 &self.inlay_hint_cache
13080 }
13081
13082 pub fn replay_insert_event(
13083 &mut self,
13084 text: &str,
13085 relative_utf16_range: Option<Range<isize>>,
13086 cx: &mut ViewContext<Self>,
13087 ) {
13088 if !self.input_enabled {
13089 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13090 return;
13091 }
13092 if let Some(relative_utf16_range) = relative_utf16_range {
13093 let selections = self.selections.all::<OffsetUtf16>(cx);
13094 self.change_selections(None, cx, |s| {
13095 let new_ranges = selections.into_iter().map(|range| {
13096 let start = OffsetUtf16(
13097 range
13098 .head()
13099 .0
13100 .saturating_add_signed(relative_utf16_range.start),
13101 );
13102 let end = OffsetUtf16(
13103 range
13104 .head()
13105 .0
13106 .saturating_add_signed(relative_utf16_range.end),
13107 );
13108 start..end
13109 });
13110 s.select_ranges(new_ranges);
13111 });
13112 }
13113
13114 self.handle_input(text, cx);
13115 }
13116
13117 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
13118 let Some(provider) = self.semantics_provider.as_ref() else {
13119 return false;
13120 };
13121
13122 let mut supports = false;
13123 self.buffer().read(cx).for_each_buffer(|buffer| {
13124 supports |= provider.supports_inlay_hints(buffer, cx);
13125 });
13126 supports
13127 }
13128
13129 pub fn focus(&self, cx: &mut WindowContext) {
13130 cx.focus(&self.focus_handle)
13131 }
13132
13133 pub fn is_focused(&self, cx: &WindowContext) -> bool {
13134 self.focus_handle.is_focused(cx)
13135 }
13136
13137 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
13138 cx.emit(EditorEvent::Focused);
13139
13140 if let Some(descendant) = self
13141 .last_focused_descendant
13142 .take()
13143 .and_then(|descendant| descendant.upgrade())
13144 {
13145 cx.focus(&descendant);
13146 } else {
13147 if let Some(blame) = self.blame.as_ref() {
13148 blame.update(cx, GitBlame::focus)
13149 }
13150
13151 self.blink_manager.update(cx, BlinkManager::enable);
13152 self.show_cursor_names(cx);
13153 self.buffer.update(cx, |buffer, cx| {
13154 buffer.finalize_last_transaction(cx);
13155 if self.leader_peer_id.is_none() {
13156 buffer.set_active_selections(
13157 &self.selections.disjoint_anchors(),
13158 self.selections.line_mode,
13159 self.cursor_shape,
13160 cx,
13161 );
13162 }
13163 });
13164 }
13165 }
13166
13167 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13168 cx.emit(EditorEvent::FocusedIn)
13169 }
13170
13171 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13172 if event.blurred != self.focus_handle {
13173 self.last_focused_descendant = Some(event.blurred);
13174 }
13175 }
13176
13177 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13178 self.blink_manager.update(cx, BlinkManager::disable);
13179 self.buffer
13180 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13181
13182 if let Some(blame) = self.blame.as_ref() {
13183 blame.update(cx, GitBlame::blur)
13184 }
13185 if !self.hover_state.focused(cx) {
13186 hide_hover(self, cx);
13187 }
13188
13189 self.hide_context_menu(cx);
13190 cx.emit(EditorEvent::Blurred);
13191 cx.notify();
13192 }
13193
13194 pub fn register_action<A: Action>(
13195 &mut self,
13196 listener: impl Fn(&A, &mut WindowContext) + 'static,
13197 ) -> Subscription {
13198 let id = self.next_editor_action_id.post_inc();
13199 let listener = Arc::new(listener);
13200 self.editor_actions.borrow_mut().insert(
13201 id,
13202 Box::new(move |cx| {
13203 let cx = cx.window_context();
13204 let listener = listener.clone();
13205 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13206 let action = action.downcast_ref().unwrap();
13207 if phase == DispatchPhase::Bubble {
13208 listener(action, cx)
13209 }
13210 })
13211 }),
13212 );
13213
13214 let editor_actions = self.editor_actions.clone();
13215 Subscription::new(move || {
13216 editor_actions.borrow_mut().remove(&id);
13217 })
13218 }
13219
13220 pub fn file_header_size(&self) -> u32 {
13221 FILE_HEADER_HEIGHT
13222 }
13223
13224 pub fn revert(
13225 &mut self,
13226 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13227 cx: &mut ViewContext<Self>,
13228 ) {
13229 self.buffer().update(cx, |multi_buffer, cx| {
13230 for (buffer_id, changes) in revert_changes {
13231 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13232 buffer.update(cx, |buffer, cx| {
13233 buffer.edit(
13234 changes.into_iter().map(|(range, text)| {
13235 (range, text.to_string().map(Arc::<str>::from))
13236 }),
13237 None,
13238 cx,
13239 );
13240 });
13241 }
13242 }
13243 });
13244 self.change_selections(None, cx, |selections| selections.refresh());
13245 }
13246
13247 pub fn to_pixel_point(
13248 &mut self,
13249 source: multi_buffer::Anchor,
13250 editor_snapshot: &EditorSnapshot,
13251 cx: &mut ViewContext<Self>,
13252 ) -> Option<gpui::Point<Pixels>> {
13253 let source_point = source.to_display_point(editor_snapshot);
13254 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13255 }
13256
13257 pub fn display_to_pixel_point(
13258 &mut self,
13259 source: DisplayPoint,
13260 editor_snapshot: &EditorSnapshot,
13261 cx: &mut ViewContext<Self>,
13262 ) -> Option<gpui::Point<Pixels>> {
13263 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13264 let text_layout_details = self.text_layout_details(cx);
13265 let scroll_top = text_layout_details
13266 .scroll_anchor
13267 .scroll_position(editor_snapshot)
13268 .y;
13269
13270 if source.row().as_f32() < scroll_top.floor() {
13271 return None;
13272 }
13273 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13274 let source_y = line_height * (source.row().as_f32() - scroll_top);
13275 Some(gpui::Point::new(source_x, source_y))
13276 }
13277
13278 pub fn has_active_completions_menu(&self) -> bool {
13279 self.context_menu.read().as_ref().map_or(false, |menu| {
13280 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13281 })
13282 }
13283
13284 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13285 self.addons
13286 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13287 }
13288
13289 pub fn unregister_addon<T: Addon>(&mut self) {
13290 self.addons.remove(&std::any::TypeId::of::<T>());
13291 }
13292
13293 pub fn addon<T: Addon>(&self) -> Option<&T> {
13294 let type_id = std::any::TypeId::of::<T>();
13295 self.addons
13296 .get(&type_id)
13297 .and_then(|item| item.to_any().downcast_ref::<T>())
13298 }
13299}
13300
13301fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13302 let tab_size = tab_size.get() as usize;
13303 let mut width = offset;
13304
13305 for ch in text.chars() {
13306 width += if ch == '\t' {
13307 tab_size - (width % tab_size)
13308 } else {
13309 1
13310 };
13311 }
13312
13313 width - offset
13314}
13315
13316#[cfg(test)]
13317mod tests {
13318 use super::*;
13319
13320 #[test]
13321 fn test_string_size_with_expanded_tabs() {
13322 let nz = |val| NonZeroU32::new(val).unwrap();
13323 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13324 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13325 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13326 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13327 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13328 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13329 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13330 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13331 }
13332}
13333
13334/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13335struct WordBreakingTokenizer<'a> {
13336 input: &'a str,
13337}
13338
13339impl<'a> WordBreakingTokenizer<'a> {
13340 fn new(input: &'a str) -> Self {
13341 Self { input }
13342 }
13343}
13344
13345fn is_char_ideographic(ch: char) -> bool {
13346 use unicode_script::Script::*;
13347 use unicode_script::UnicodeScript;
13348 matches!(ch.script(), Han | Tangut | Yi)
13349}
13350
13351fn is_grapheme_ideographic(text: &str) -> bool {
13352 text.chars().any(is_char_ideographic)
13353}
13354
13355fn is_grapheme_whitespace(text: &str) -> bool {
13356 text.chars().any(|x| x.is_whitespace())
13357}
13358
13359fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13360 text.chars().next().map_or(false, |ch| {
13361 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13362 })
13363}
13364
13365#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13366struct WordBreakToken<'a> {
13367 token: &'a str,
13368 grapheme_len: usize,
13369 is_whitespace: bool,
13370}
13371
13372impl<'a> Iterator for WordBreakingTokenizer<'a> {
13373 /// Yields a span, the count of graphemes in the token, and whether it was
13374 /// whitespace. Note that it also breaks at word boundaries.
13375 type Item = WordBreakToken<'a>;
13376
13377 fn next(&mut self) -> Option<Self::Item> {
13378 use unicode_segmentation::UnicodeSegmentation;
13379 if self.input.is_empty() {
13380 return None;
13381 }
13382
13383 let mut iter = self.input.graphemes(true).peekable();
13384 let mut offset = 0;
13385 let mut graphemes = 0;
13386 if let Some(first_grapheme) = iter.next() {
13387 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13388 offset += first_grapheme.len();
13389 graphemes += 1;
13390 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13391 if let Some(grapheme) = iter.peek().copied() {
13392 if should_stay_with_preceding_ideograph(grapheme) {
13393 offset += grapheme.len();
13394 graphemes += 1;
13395 }
13396 }
13397 } else {
13398 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13399 let mut next_word_bound = words.peek().copied();
13400 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13401 next_word_bound = words.next();
13402 }
13403 while let Some(grapheme) = iter.peek().copied() {
13404 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13405 break;
13406 };
13407 if is_grapheme_whitespace(grapheme) != is_whitespace {
13408 break;
13409 };
13410 offset += grapheme.len();
13411 graphemes += 1;
13412 iter.next();
13413 }
13414 }
13415 let token = &self.input[..offset];
13416 self.input = &self.input[offset..];
13417 if is_whitespace {
13418 Some(WordBreakToken {
13419 token: " ",
13420 grapheme_len: 1,
13421 is_whitespace: true,
13422 })
13423 } else {
13424 Some(WordBreakToken {
13425 token,
13426 grapheme_len: graphemes,
13427 is_whitespace: false,
13428 })
13429 }
13430 } else {
13431 None
13432 }
13433 }
13434}
13435
13436#[test]
13437fn test_word_breaking_tokenizer() {
13438 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13439 ("", &[]),
13440 (" ", &[(" ", 1, true)]),
13441 ("Ʒ", &[("Ʒ", 1, false)]),
13442 ("Ǽ", &[("Ǽ", 1, false)]),
13443 ("⋑", &[("⋑", 1, false)]),
13444 ("⋑⋑", &[("⋑⋑", 2, false)]),
13445 (
13446 "原理，进而",
13447 &[
13448 ("原", 1, false),
13449 ("理，", 2, false),
13450 ("进", 1, false),
13451 ("而", 1, false),
13452 ],
13453 ),
13454 (
13455 "hello world",
13456 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13457 ),
13458 (
13459 "hello, world",
13460 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13461 ),
13462 (
13463 " hello world",
13464 &[
13465 (" ", 1, true),
13466 ("hello", 5, false),
13467 (" ", 1, true),
13468 ("world", 5, false),
13469 ],
13470 ),
13471 (
13472 "这是什么 \n 钢笔",
13473 &[
13474 ("这", 1, false),
13475 ("是", 1, false),
13476 ("什", 1, false),
13477 ("么", 1, false),
13478 (" ", 1, true),
13479 ("钢", 1, false),
13480 ("笔", 1, false),
13481 ],
13482 ),
13483 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13484 ];
13485
13486 for (input, result) in tests {
13487 assert_eq!(
13488 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13489 result
13490 .iter()
13491 .copied()
13492 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13493 token,
13494 grapheme_len,
13495 is_whitespace,
13496 })
13497 .collect::<Vec<_>>()
13498 );
13499 }
13500}
13501
13502fn wrap_with_prefix(
13503 line_prefix: String,
13504 unwrapped_text: String,
13505 wrap_column: usize,
13506 tab_size: NonZeroU32,
13507) -> String {
13508 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13509 let mut wrapped_text = String::new();
13510 let mut current_line = line_prefix.clone();
13511
13512 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13513 let mut current_line_len = line_prefix_len;
13514 for WordBreakToken {
13515 token,
13516 grapheme_len,
13517 is_whitespace,
13518 } in tokenizer
13519 {
13520 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13521 wrapped_text.push_str(current_line.trim_end());
13522 wrapped_text.push('\n');
13523 current_line.truncate(line_prefix.len());
13524 current_line_len = line_prefix_len;
13525 if !is_whitespace {
13526 current_line.push_str(token);
13527 current_line_len += grapheme_len;
13528 }
13529 } else if !is_whitespace {
13530 current_line.push_str(token);
13531 current_line_len += grapheme_len;
13532 } else if current_line_len != line_prefix_len {
13533 current_line.push(' ');
13534 current_line_len += 1;
13535 }
13536 }
13537
13538 if !current_line.is_empty() {
13539 wrapped_text.push_str(¤t_line);
13540 }
13541 wrapped_text
13542}
13543
13544#[test]
13545fn test_wrap_with_prefix() {
13546 assert_eq!(
13547 wrap_with_prefix(
13548 "# ".to_string(),
13549 "abcdefg".to_string(),
13550 4,
13551 NonZeroU32::new(4).unwrap()
13552 ),
13553 "# abcdefg"
13554 );
13555 assert_eq!(
13556 wrap_with_prefix(
13557 "".to_string(),
13558 "\thello world".to_string(),
13559 8,
13560 NonZeroU32::new(4).unwrap()
13561 ),
13562 "hello\nworld"
13563 );
13564 assert_eq!(
13565 wrap_with_prefix(
13566 "// ".to_string(),
13567 "xx \nyy zz aa bb cc".to_string(),
13568 12,
13569 NonZeroU32::new(4).unwrap()
13570 ),
13571 "// xx yy zz\n// aa bb cc"
13572 );
13573 assert_eq!(
13574 wrap_with_prefix(
13575 String::new(),
13576 "这是什么 \n 钢笔".to_string(),
13577 3,
13578 NonZeroU32::new(4).unwrap()
13579 ),
13580 "这是什\n么 钢\n笔"
13581 );
13582}
13583
13584fn hunks_for_selections(
13585 multi_buffer_snapshot: &MultiBufferSnapshot,
13586 selections: &[Selection<Anchor>],
13587) -> Vec<MultiBufferDiffHunk> {
13588 let buffer_rows_for_selections = selections.iter().map(|selection| {
13589 let head = selection.head();
13590 let tail = selection.tail();
13591 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13592 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13593 if start > end {
13594 end..start
13595 } else {
13596 start..end
13597 }
13598 });
13599
13600 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13601}
13602
13603pub fn hunks_for_rows(
13604 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13605 multi_buffer_snapshot: &MultiBufferSnapshot,
13606) -> Vec<MultiBufferDiffHunk> {
13607 let mut hunks = Vec::new();
13608 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13609 HashMap::default();
13610 for selected_multi_buffer_rows in rows {
13611 let query_rows =
13612 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13613 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13614 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13615 // when the caret is just above or just below the deleted hunk.
13616 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13617 let related_to_selection = if allow_adjacent {
13618 hunk.row_range.overlaps(&query_rows)
13619 || hunk.row_range.start == query_rows.end
13620 || hunk.row_range.end == query_rows.start
13621 } else {
13622 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13623 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13624 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13625 || selected_multi_buffer_rows.end == hunk.row_range.start
13626 };
13627 if related_to_selection {
13628 if !processed_buffer_rows
13629 .entry(hunk.buffer_id)
13630 .or_default()
13631 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13632 {
13633 continue;
13634 }
13635 hunks.push(hunk);
13636 }
13637 }
13638 }
13639
13640 hunks
13641}
13642
13643pub trait CollaborationHub {
13644 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13645 fn user_participant_indices<'a>(
13646 &self,
13647 cx: &'a AppContext,
13648 ) -> &'a HashMap<u64, ParticipantIndex>;
13649 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13650}
13651
13652impl CollaborationHub for Model<Project> {
13653 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13654 self.read(cx).collaborators()
13655 }
13656
13657 fn user_participant_indices<'a>(
13658 &self,
13659 cx: &'a AppContext,
13660 ) -> &'a HashMap<u64, ParticipantIndex> {
13661 self.read(cx).user_store().read(cx).participant_indices()
13662 }
13663
13664 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13665 let this = self.read(cx);
13666 let user_ids = this.collaborators().values().map(|c| c.user_id);
13667 this.user_store().read_with(cx, |user_store, cx| {
13668 user_store.participant_names(user_ids, cx)
13669 })
13670 }
13671}
13672
13673pub trait SemanticsProvider {
13674 fn hover(
13675 &self,
13676 buffer: &Model<Buffer>,
13677 position: text::Anchor,
13678 cx: &mut AppContext,
13679 ) -> Option<Task<Vec<project::Hover>>>;
13680
13681 fn inlay_hints(
13682 &self,
13683 buffer_handle: Model<Buffer>,
13684 range: Range<text::Anchor>,
13685 cx: &mut AppContext,
13686 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13687
13688 fn resolve_inlay_hint(
13689 &self,
13690 hint: InlayHint,
13691 buffer_handle: Model<Buffer>,
13692 server_id: LanguageServerId,
13693 cx: &mut AppContext,
13694 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13695
13696 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13697
13698 fn document_highlights(
13699 &self,
13700 buffer: &Model<Buffer>,
13701 position: text::Anchor,
13702 cx: &mut AppContext,
13703 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13704
13705 fn definitions(
13706 &self,
13707 buffer: &Model<Buffer>,
13708 position: text::Anchor,
13709 kind: GotoDefinitionKind,
13710 cx: &mut AppContext,
13711 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13712
13713 fn range_for_rename(
13714 &self,
13715 buffer: &Model<Buffer>,
13716 position: text::Anchor,
13717 cx: &mut AppContext,
13718 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13719
13720 fn perform_rename(
13721 &self,
13722 buffer: &Model<Buffer>,
13723 position: text::Anchor,
13724 new_name: String,
13725 cx: &mut AppContext,
13726 ) -> Option<Task<Result<ProjectTransaction>>>;
13727}
13728
13729pub trait CompletionProvider {
13730 fn completions(
13731 &self,
13732 buffer: &Model<Buffer>,
13733 buffer_position: text::Anchor,
13734 trigger: CompletionContext,
13735 cx: &mut ViewContext<Editor>,
13736 ) -> Task<Result<Vec<Completion>>>;
13737
13738 fn resolve_completions(
13739 &self,
13740 buffer: Model<Buffer>,
13741 completion_indices: Vec<usize>,
13742 completions: Arc<RwLock<Box<[Completion]>>>,
13743 cx: &mut ViewContext<Editor>,
13744 ) -> Task<Result<bool>>;
13745
13746 fn apply_additional_edits_for_completion(
13747 &self,
13748 buffer: Model<Buffer>,
13749 completion: Completion,
13750 push_to_history: bool,
13751 cx: &mut ViewContext<Editor>,
13752 ) -> Task<Result<Option<language::Transaction>>>;
13753
13754 fn is_completion_trigger(
13755 &self,
13756 buffer: &Model<Buffer>,
13757 position: language::Anchor,
13758 text: &str,
13759 trigger_in_words: bool,
13760 cx: &mut ViewContext<Editor>,
13761 ) -> bool;
13762
13763 fn sort_completions(&self) -> bool {
13764 true
13765 }
13766}
13767
13768pub trait CodeActionProvider {
13769 fn code_actions(
13770 &self,
13771 buffer: &Model<Buffer>,
13772 range: Range<text::Anchor>,
13773 cx: &mut WindowContext,
13774 ) -> Task<Result<Vec<CodeAction>>>;
13775
13776 fn apply_code_action(
13777 &self,
13778 buffer_handle: Model<Buffer>,
13779 action: CodeAction,
13780 excerpt_id: ExcerptId,
13781 push_to_history: bool,
13782 cx: &mut WindowContext,
13783 ) -> Task<Result<ProjectTransaction>>;
13784}
13785
13786impl CodeActionProvider for Model<Project> {
13787 fn code_actions(
13788 &self,
13789 buffer: &Model<Buffer>,
13790 range: Range<text::Anchor>,
13791 cx: &mut WindowContext,
13792 ) -> Task<Result<Vec<CodeAction>>> {
13793 self.update(cx, |project, cx| project.code_actions(buffer, range, cx))
13794 }
13795
13796 fn apply_code_action(
13797 &self,
13798 buffer_handle: Model<Buffer>,
13799 action: CodeAction,
13800 _excerpt_id: ExcerptId,
13801 push_to_history: bool,
13802 cx: &mut WindowContext,
13803 ) -> Task<Result<ProjectTransaction>> {
13804 self.update(cx, |project, cx| {
13805 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13806 })
13807 }
13808}
13809
13810fn snippet_completions(
13811 project: &Project,
13812 buffer: &Model<Buffer>,
13813 buffer_position: text::Anchor,
13814 cx: &mut AppContext,
13815) -> Vec<Completion> {
13816 let language = buffer.read(cx).language_at(buffer_position);
13817 let language_name = language.as_ref().map(|language| language.lsp_id());
13818 let snippet_store = project.snippets().read(cx);
13819 let snippets = snippet_store.snippets_for(language_name, cx);
13820
13821 if snippets.is_empty() {
13822 return vec![];
13823 }
13824 let snapshot = buffer.read(cx).text_snapshot();
13825 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13826
13827 let scope = language.map(|language| language.default_scope());
13828 let classifier = CharClassifier::new(scope).for_completion(true);
13829 let mut last_word = chars
13830 .take_while(|c| classifier.is_word(*c))
13831 .collect::<String>();
13832 last_word = last_word.chars().rev().collect();
13833 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13834 let to_lsp = |point: &text::Anchor| {
13835 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13836 point_to_lsp(end)
13837 };
13838 let lsp_end = to_lsp(&buffer_position);
13839 snippets
13840 .into_iter()
13841 .filter_map(|snippet| {
13842 let matching_prefix = snippet
13843 .prefix
13844 .iter()
13845 .find(|prefix| prefix.starts_with(&last_word))?;
13846 let start = as_offset - last_word.len();
13847 let start = snapshot.anchor_before(start);
13848 let range = start..buffer_position;
13849 let lsp_start = to_lsp(&start);
13850 let lsp_range = lsp::Range {
13851 start: lsp_start,
13852 end: lsp_end,
13853 };
13854 Some(Completion {
13855 old_range: range,
13856 new_text: snippet.body.clone(),
13857 label: CodeLabel {
13858 text: matching_prefix.clone(),
13859 runs: vec![],
13860 filter_range: 0..matching_prefix.len(),
13861 },
13862 server_id: LanguageServerId(usize::MAX),
13863 documentation: snippet.description.clone().map(Documentation::SingleLine),
13864 lsp_completion: lsp::CompletionItem {
13865 label: snippet.prefix.first().unwrap().clone(),
13866 kind: Some(CompletionItemKind::SNIPPET),
13867 label_details: snippet.description.as_ref().map(|description| {
13868 lsp::CompletionItemLabelDetails {
13869 detail: Some(description.clone()),
13870 description: None,
13871 }
13872 }),
13873 insert_text_format: Some(InsertTextFormat::SNIPPET),
13874 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13875 lsp::InsertReplaceEdit {
13876 new_text: snippet.body.clone(),
13877 insert: lsp_range,
13878 replace: lsp_range,
13879 },
13880 )),
13881 filter_text: Some(snippet.body.clone()),
13882 sort_text: Some(char::MAX.to_string()),
13883 ..Default::default()
13884 },
13885 confirm: None,
13886 })
13887 })
13888 .collect()
13889}
13890
13891impl CompletionProvider for Model<Project> {
13892 fn completions(
13893 &self,
13894 buffer: &Model<Buffer>,
13895 buffer_position: text::Anchor,
13896 options: CompletionContext,
13897 cx: &mut ViewContext<Editor>,
13898 ) -> Task<Result<Vec<Completion>>> {
13899 self.update(cx, |project, cx| {
13900 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13901 let project_completions = project.completions(buffer, buffer_position, options, cx);
13902 cx.background_executor().spawn(async move {
13903 let mut completions = project_completions.await?;
13904 //let snippets = snippets.into_iter().;
13905 completions.extend(snippets);
13906 Ok(completions)
13907 })
13908 })
13909 }
13910
13911 fn resolve_completions(
13912 &self,
13913 buffer: Model<Buffer>,
13914 completion_indices: Vec<usize>,
13915 completions: Arc<RwLock<Box<[Completion]>>>,
13916 cx: &mut ViewContext<Editor>,
13917 ) -> Task<Result<bool>> {
13918 self.update(cx, |project, cx| {
13919 project.resolve_completions(buffer, completion_indices, completions, cx)
13920 })
13921 }
13922
13923 fn apply_additional_edits_for_completion(
13924 &self,
13925 buffer: Model<Buffer>,
13926 completion: Completion,
13927 push_to_history: bool,
13928 cx: &mut ViewContext<Editor>,
13929 ) -> Task<Result<Option<language::Transaction>>> {
13930 self.update(cx, |project, cx| {
13931 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13932 })
13933 }
13934
13935 fn is_completion_trigger(
13936 &self,
13937 buffer: &Model<Buffer>,
13938 position: language::Anchor,
13939 text: &str,
13940 trigger_in_words: bool,
13941 cx: &mut ViewContext<Editor>,
13942 ) -> bool {
13943 if !EditorSettings::get_global(cx).show_completions_on_input {
13944 return false;
13945 }
13946
13947 let mut chars = text.chars();
13948 let char = if let Some(char) = chars.next() {
13949 char
13950 } else {
13951 return false;
13952 };
13953 if chars.next().is_some() {
13954 return false;
13955 }
13956
13957 let buffer = buffer.read(cx);
13958 let classifier = buffer
13959 .snapshot()
13960 .char_classifier_at(position)
13961 .for_completion(true);
13962 if trigger_in_words && classifier.is_word(char) {
13963 return true;
13964 }
13965
13966 buffer.completion_triggers().contains(text)
13967 }
13968}
13969
13970impl SemanticsProvider for Model<Project> {
13971 fn hover(
13972 &self,
13973 buffer: &Model<Buffer>,
13974 position: text::Anchor,
13975 cx: &mut AppContext,
13976 ) -> Option<Task<Vec<project::Hover>>> {
13977 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13978 }
13979
13980 fn document_highlights(
13981 &self,
13982 buffer: &Model<Buffer>,
13983 position: text::Anchor,
13984 cx: &mut AppContext,
13985 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13986 Some(self.update(cx, |project, cx| {
13987 project.document_highlights(buffer, position, cx)
13988 }))
13989 }
13990
13991 fn definitions(
13992 &self,
13993 buffer: &Model<Buffer>,
13994 position: text::Anchor,
13995 kind: GotoDefinitionKind,
13996 cx: &mut AppContext,
13997 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13998 Some(self.update(cx, |project, cx| match kind {
13999 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
14000 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
14001 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
14002 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
14003 }))
14004 }
14005
14006 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
14007 // TODO: make this work for remote projects
14008 self.read(cx)
14009 .language_servers_for_buffer(buffer.read(cx), cx)
14010 .any(
14011 |(_, server)| match server.capabilities().inlay_hint_provider {
14012 Some(lsp::OneOf::Left(enabled)) => enabled,
14013 Some(lsp::OneOf::Right(_)) => true,
14014 None => false,
14015 },
14016 )
14017 }
14018
14019 fn inlay_hints(
14020 &self,
14021 buffer_handle: Model<Buffer>,
14022 range: Range<text::Anchor>,
14023 cx: &mut AppContext,
14024 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
14025 Some(self.update(cx, |project, cx| {
14026 project.inlay_hints(buffer_handle, range, cx)
14027 }))
14028 }
14029
14030 fn resolve_inlay_hint(
14031 &self,
14032 hint: InlayHint,
14033 buffer_handle: Model<Buffer>,
14034 server_id: LanguageServerId,
14035 cx: &mut AppContext,
14036 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14037 Some(self.update(cx, |project, cx| {
14038 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14039 }))
14040 }
14041
14042 fn range_for_rename(
14043 &self,
14044 buffer: &Model<Buffer>,
14045 position: text::Anchor,
14046 cx: &mut AppContext,
14047 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14048 Some(self.update(cx, |project, cx| {
14049 project.prepare_rename(buffer.clone(), position, cx)
14050 }))
14051 }
14052
14053 fn perform_rename(
14054 &self,
14055 buffer: &Model<Buffer>,
14056 position: text::Anchor,
14057 new_name: String,
14058 cx: &mut AppContext,
14059 ) -> Option<Task<Result<ProjectTransaction>>> {
14060 Some(self.update(cx, |project, cx| {
14061 project.perform_rename(buffer.clone(), position, new_name, cx)
14062 }))
14063 }
14064}
14065
14066fn inlay_hint_settings(
14067 location: Anchor,
14068 snapshot: &MultiBufferSnapshot,
14069 cx: &mut ViewContext<'_, Editor>,
14070) -> InlayHintSettings {
14071 let file = snapshot.file_at(location);
14072 let language = snapshot.language_at(location).map(|l| l.name());
14073 language_settings(language, file, cx).inlay_hints
14074}
14075
14076fn consume_contiguous_rows(
14077 contiguous_row_selections: &mut Vec<Selection<Point>>,
14078 selection: &Selection<Point>,
14079 display_map: &DisplaySnapshot,
14080 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14081) -> (MultiBufferRow, MultiBufferRow) {
14082 contiguous_row_selections.push(selection.clone());
14083 let start_row = MultiBufferRow(selection.start.row);
14084 let mut end_row = ending_row(selection, display_map);
14085
14086 while let Some(next_selection) = selections.peek() {
14087 if next_selection.start.row <= end_row.0 {
14088 end_row = ending_row(next_selection, display_map);
14089 contiguous_row_selections.push(selections.next().unwrap().clone());
14090 } else {
14091 break;
14092 }
14093 }
14094 (start_row, end_row)
14095}
14096
14097fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14098 if next_selection.end.column > 0 || next_selection.is_empty() {
14099 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14100 } else {
14101 MultiBufferRow(next_selection.end.row)
14102 }
14103}
14104
14105impl EditorSnapshot {
14106 pub fn remote_selections_in_range<'a>(
14107 &'a self,
14108 range: &'a Range<Anchor>,
14109 collaboration_hub: &dyn CollaborationHub,
14110 cx: &'a AppContext,
14111 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14112 let participant_names = collaboration_hub.user_names(cx);
14113 let participant_indices = collaboration_hub.user_participant_indices(cx);
14114 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14115 let collaborators_by_replica_id = collaborators_by_peer_id
14116 .iter()
14117 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14118 .collect::<HashMap<_, _>>();
14119 self.buffer_snapshot
14120 .selections_in_range(range, false)
14121 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14122 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14123 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14124 let user_name = participant_names.get(&collaborator.user_id).cloned();
14125 Some(RemoteSelection {
14126 replica_id,
14127 selection,
14128 cursor_shape,
14129 line_mode,
14130 participant_index,
14131 peer_id: collaborator.peer_id,
14132 user_name,
14133 })
14134 })
14135 }
14136
14137 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14138 self.display_snapshot.buffer_snapshot.language_at(position)
14139 }
14140
14141 pub fn is_focused(&self) -> bool {
14142 self.is_focused
14143 }
14144
14145 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14146 self.placeholder_text.as_ref()
14147 }
14148
14149 pub fn scroll_position(&self) -> gpui::Point<f32> {
14150 self.scroll_anchor.scroll_position(&self.display_snapshot)
14151 }
14152
14153 fn gutter_dimensions(
14154 &self,
14155 font_id: FontId,
14156 font_size: Pixels,
14157 em_width: Pixels,
14158 em_advance: Pixels,
14159 max_line_number_width: Pixels,
14160 cx: &AppContext,
14161 ) -> GutterDimensions {
14162 if !self.show_gutter {
14163 return GutterDimensions::default();
14164 }
14165 let descent = cx.text_system().descent(font_id, font_size);
14166
14167 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14168 matches!(
14169 ProjectSettings::get_global(cx).git.git_gutter,
14170 Some(GitGutterSetting::TrackedFiles)
14171 )
14172 });
14173 let gutter_settings = EditorSettings::get_global(cx).gutter;
14174 let show_line_numbers = self
14175 .show_line_numbers
14176 .unwrap_or(gutter_settings.line_numbers);
14177 let line_gutter_width = if show_line_numbers {
14178 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14179 let min_width_for_number_on_gutter = em_advance * 4.0;
14180 max_line_number_width.max(min_width_for_number_on_gutter)
14181 } else {
14182 0.0.into()
14183 };
14184
14185 let show_code_actions = self
14186 .show_code_actions
14187 .unwrap_or(gutter_settings.code_actions);
14188
14189 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14190
14191 let git_blame_entries_width =
14192 self.git_blame_gutter_max_author_length
14193 .map(|max_author_length| {
14194 // Length of the author name, but also space for the commit hash,
14195 // the spacing and the timestamp.
14196 let max_char_count = max_author_length
14197 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14198 + 7 // length of commit sha
14199 + 14 // length of max relative timestamp ("60 minutes ago")
14200 + 4; // gaps and margins
14201
14202 em_advance * max_char_count
14203 });
14204
14205 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14206 left_padding += if show_code_actions || show_runnables {
14207 em_width * 3.0
14208 } else if show_git_gutter && show_line_numbers {
14209 em_width * 2.0
14210 } else if show_git_gutter || show_line_numbers {
14211 em_width
14212 } else {
14213 px(0.)
14214 };
14215
14216 let right_padding = if gutter_settings.folds && show_line_numbers {
14217 em_width * 4.0
14218 } else if gutter_settings.folds {
14219 em_width * 3.0
14220 } else if show_line_numbers {
14221 em_width
14222 } else {
14223 px(0.)
14224 };
14225
14226 GutterDimensions {
14227 left_padding,
14228 right_padding,
14229 width: line_gutter_width + left_padding + right_padding,
14230 margin: -descent,
14231 git_blame_entries_width,
14232 }
14233 }
14234
14235 pub fn render_crease_toggle(
14236 &self,
14237 buffer_row: MultiBufferRow,
14238 row_contains_cursor: bool,
14239 editor: View<Editor>,
14240 cx: &mut WindowContext,
14241 ) -> Option<AnyElement> {
14242 let folded = self.is_line_folded(buffer_row);
14243 let mut is_foldable = false;
14244
14245 if let Some(crease) = self
14246 .crease_snapshot
14247 .query_row(buffer_row, &self.buffer_snapshot)
14248 {
14249 is_foldable = true;
14250 match crease {
14251 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14252 if let Some(render_toggle) = render_toggle {
14253 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14254 if folded {
14255 editor.update(cx, |editor, cx| {
14256 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14257 });
14258 } else {
14259 editor.update(cx, |editor, cx| {
14260 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14261 });
14262 }
14263 });
14264 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14265 }
14266 }
14267 }
14268 }
14269
14270 is_foldable |= self.starts_indent(buffer_row);
14271
14272 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14273 Some(
14274 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14275 .selected(folded)
14276 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14277 if folded {
14278 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14279 } else {
14280 this.fold_at(&FoldAt { buffer_row }, cx);
14281 }
14282 }))
14283 .into_any_element(),
14284 )
14285 } else {
14286 None
14287 }
14288 }
14289
14290 pub fn render_crease_trailer(
14291 &self,
14292 buffer_row: MultiBufferRow,
14293 cx: &mut WindowContext,
14294 ) -> Option<AnyElement> {
14295 let folded = self.is_line_folded(buffer_row);
14296 if let Crease::Inline { render_trailer, .. } = self
14297 .crease_snapshot
14298 .query_row(buffer_row, &self.buffer_snapshot)?
14299 {
14300 let render_trailer = render_trailer.as_ref()?;
14301 Some(render_trailer(buffer_row, folded, cx))
14302 } else {
14303 None
14304 }
14305 }
14306}
14307
14308impl Deref for EditorSnapshot {
14309 type Target = DisplaySnapshot;
14310
14311 fn deref(&self) -> &Self::Target {
14312 &self.display_snapshot
14313 }
14314}
14315
14316#[derive(Clone, Debug, PartialEq, Eq)]
14317pub enum EditorEvent {
14318 InputIgnored {
14319 text: Arc<str>,
14320 },
14321 InputHandled {
14322 utf16_range_to_replace: Option<Range<isize>>,
14323 text: Arc<str>,
14324 },
14325 ExcerptsAdded {
14326 buffer: Model<Buffer>,
14327 predecessor: ExcerptId,
14328 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14329 },
14330 ExcerptsRemoved {
14331 ids: Vec<ExcerptId>,
14332 },
14333 ExcerptsEdited {
14334 ids: Vec<ExcerptId>,
14335 },
14336 ExcerptsExpanded {
14337 ids: Vec<ExcerptId>,
14338 },
14339 BufferEdited,
14340 Edited {
14341 transaction_id: clock::Lamport,
14342 },
14343 Reparsed(BufferId),
14344 Focused,
14345 FocusedIn,
14346 Blurred,
14347 DirtyChanged,
14348 Saved,
14349 TitleChanged,
14350 DiffBaseChanged,
14351 SelectionsChanged {
14352 local: bool,
14353 },
14354 ScrollPositionChanged {
14355 local: bool,
14356 autoscroll: bool,
14357 },
14358 Closed,
14359 TransactionUndone {
14360 transaction_id: clock::Lamport,
14361 },
14362 TransactionBegun {
14363 transaction_id: clock::Lamport,
14364 },
14365 Reloaded,
14366 CursorShapeChanged,
14367}
14368
14369impl EventEmitter<EditorEvent> for Editor {}
14370
14371impl FocusableView for Editor {
14372 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14373 self.focus_handle.clone()
14374 }
14375}
14376
14377impl Render for Editor {
14378 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14379 let settings = ThemeSettings::get_global(cx);
14380
14381 let mut text_style = match self.mode {
14382 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14383 color: cx.theme().colors().editor_foreground,
14384 font_family: settings.ui_font.family.clone(),
14385 font_features: settings.ui_font.features.clone(),
14386 font_fallbacks: settings.ui_font.fallbacks.clone(),
14387 font_size: rems(0.875).into(),
14388 font_weight: settings.ui_font.weight,
14389 line_height: relative(settings.buffer_line_height.value()),
14390 ..Default::default()
14391 },
14392 EditorMode::Full => TextStyle {
14393 color: cx.theme().colors().editor_foreground,
14394 font_family: settings.buffer_font.family.clone(),
14395 font_features: settings.buffer_font.features.clone(),
14396 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14397 font_size: settings.buffer_font_size(cx).into(),
14398 font_weight: settings.buffer_font.weight,
14399 line_height: relative(settings.buffer_line_height.value()),
14400 ..Default::default()
14401 },
14402 };
14403 if let Some(text_style_refinement) = &self.text_style_refinement {
14404 text_style.refine(text_style_refinement)
14405 }
14406
14407 let background = match self.mode {
14408 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14409 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14410 EditorMode::Full => cx.theme().colors().editor_background,
14411 };
14412
14413 EditorElement::new(
14414 cx.view(),
14415 EditorStyle {
14416 background,
14417 local_player: cx.theme().players().local(),
14418 text: text_style,
14419 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14420 syntax: cx.theme().syntax().clone(),
14421 status: cx.theme().status().clone(),
14422 inlay_hints_style: make_inlay_hints_style(cx),
14423 suggestions_style: HighlightStyle {
14424 color: Some(cx.theme().status().predictive),
14425 ..HighlightStyle::default()
14426 },
14427 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14428 },
14429 )
14430 }
14431}
14432
14433impl ViewInputHandler for Editor {
14434 fn text_for_range(
14435 &mut self,
14436 range_utf16: Range<usize>,
14437 cx: &mut ViewContext<Self>,
14438 ) -> Option<String> {
14439 Some(
14440 self.buffer
14441 .read(cx)
14442 .read(cx)
14443 .text_for_range(OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end))
14444 .collect(),
14445 )
14446 }
14447
14448 fn selected_text_range(
14449 &mut self,
14450 ignore_disabled_input: bool,
14451 cx: &mut ViewContext<Self>,
14452 ) -> Option<UTF16Selection> {
14453 // Prevent the IME menu from appearing when holding down an alphabetic key
14454 // while input is disabled.
14455 if !ignore_disabled_input && !self.input_enabled {
14456 return None;
14457 }
14458
14459 let selection = self.selections.newest::<OffsetUtf16>(cx);
14460 let range = selection.range();
14461
14462 Some(UTF16Selection {
14463 range: range.start.0..range.end.0,
14464 reversed: selection.reversed,
14465 })
14466 }
14467
14468 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14469 let snapshot = self.buffer.read(cx).read(cx);
14470 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14471 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14472 }
14473
14474 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14475 self.clear_highlights::<InputComposition>(cx);
14476 self.ime_transaction.take();
14477 }
14478
14479 fn replace_text_in_range(
14480 &mut self,
14481 range_utf16: Option<Range<usize>>,
14482 text: &str,
14483 cx: &mut ViewContext<Self>,
14484 ) {
14485 if !self.input_enabled {
14486 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14487 return;
14488 }
14489
14490 self.transact(cx, |this, cx| {
14491 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14492 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14493 Some(this.selection_replacement_ranges(range_utf16, cx))
14494 } else {
14495 this.marked_text_ranges(cx)
14496 };
14497
14498 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14499 let newest_selection_id = this.selections.newest_anchor().id;
14500 this.selections
14501 .all::<OffsetUtf16>(cx)
14502 .iter()
14503 .zip(ranges_to_replace.iter())
14504 .find_map(|(selection, range)| {
14505 if selection.id == newest_selection_id {
14506 Some(
14507 (range.start.0 as isize - selection.head().0 as isize)
14508 ..(range.end.0 as isize - selection.head().0 as isize),
14509 )
14510 } else {
14511 None
14512 }
14513 })
14514 });
14515
14516 cx.emit(EditorEvent::InputHandled {
14517 utf16_range_to_replace: range_to_replace,
14518 text: text.into(),
14519 });
14520
14521 if let Some(new_selected_ranges) = new_selected_ranges {
14522 this.change_selections(None, cx, |selections| {
14523 selections.select_ranges(new_selected_ranges)
14524 });
14525 this.backspace(&Default::default(), cx);
14526 }
14527
14528 this.handle_input(text, cx);
14529 });
14530
14531 if let Some(transaction) = self.ime_transaction {
14532 self.buffer.update(cx, |buffer, cx| {
14533 buffer.group_until_transaction(transaction, cx);
14534 });
14535 }
14536
14537 self.unmark_text(cx);
14538 }
14539
14540 fn replace_and_mark_text_in_range(
14541 &mut self,
14542 range_utf16: Option<Range<usize>>,
14543 text: &str,
14544 new_selected_range_utf16: Option<Range<usize>>,
14545 cx: &mut ViewContext<Self>,
14546 ) {
14547 if !self.input_enabled {
14548 return;
14549 }
14550
14551 let transaction = self.transact(cx, |this, cx| {
14552 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14553 let snapshot = this.buffer.read(cx).read(cx);
14554 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14555 for marked_range in &mut marked_ranges {
14556 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14557 marked_range.start.0 += relative_range_utf16.start;
14558 marked_range.start =
14559 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14560 marked_range.end =
14561 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14562 }
14563 }
14564 Some(marked_ranges)
14565 } else if let Some(range_utf16) = range_utf16 {
14566 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14567 Some(this.selection_replacement_ranges(range_utf16, cx))
14568 } else {
14569 None
14570 };
14571
14572 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14573 let newest_selection_id = this.selections.newest_anchor().id;
14574 this.selections
14575 .all::<OffsetUtf16>(cx)
14576 .iter()
14577 .zip(ranges_to_replace.iter())
14578 .find_map(|(selection, range)| {
14579 if selection.id == newest_selection_id {
14580 Some(
14581 (range.start.0 as isize - selection.head().0 as isize)
14582 ..(range.end.0 as isize - selection.head().0 as isize),
14583 )
14584 } else {
14585 None
14586 }
14587 })
14588 });
14589
14590 cx.emit(EditorEvent::InputHandled {
14591 utf16_range_to_replace: range_to_replace,
14592 text: text.into(),
14593 });
14594
14595 if let Some(ranges) = ranges_to_replace {
14596 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14597 }
14598
14599 let marked_ranges = {
14600 let snapshot = this.buffer.read(cx).read(cx);
14601 this.selections
14602 .disjoint_anchors()
14603 .iter()
14604 .map(|selection| {
14605 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14606 })
14607 .collect::<Vec<_>>()
14608 };
14609
14610 if text.is_empty() {
14611 this.unmark_text(cx);
14612 } else {
14613 this.highlight_text::<InputComposition>(
14614 marked_ranges.clone(),
14615 HighlightStyle {
14616 underline: Some(UnderlineStyle {
14617 thickness: px(1.),
14618 color: None,
14619 wavy: false,
14620 }),
14621 ..Default::default()
14622 },
14623 cx,
14624 );
14625 }
14626
14627 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14628 let use_autoclose = this.use_autoclose;
14629 let use_auto_surround = this.use_auto_surround;
14630 this.set_use_autoclose(false);
14631 this.set_use_auto_surround(false);
14632 this.handle_input(text, cx);
14633 this.set_use_autoclose(use_autoclose);
14634 this.set_use_auto_surround(use_auto_surround);
14635
14636 if let Some(new_selected_range) = new_selected_range_utf16 {
14637 let snapshot = this.buffer.read(cx).read(cx);
14638 let new_selected_ranges = marked_ranges
14639 .into_iter()
14640 .map(|marked_range| {
14641 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14642 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14643 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14644 snapshot.clip_offset_utf16(new_start, Bias::Left)
14645 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14646 })
14647 .collect::<Vec<_>>();
14648
14649 drop(snapshot);
14650 this.change_selections(None, cx, |selections| {
14651 selections.select_ranges(new_selected_ranges)
14652 });
14653 }
14654 });
14655
14656 self.ime_transaction = self.ime_transaction.or(transaction);
14657 if let Some(transaction) = self.ime_transaction {
14658 self.buffer.update(cx, |buffer, cx| {
14659 buffer.group_until_transaction(transaction, cx);
14660 });
14661 }
14662
14663 if self.text_highlights::<InputComposition>(cx).is_none() {
14664 self.ime_transaction.take();
14665 }
14666 }
14667
14668 fn bounds_for_range(
14669 &mut self,
14670 range_utf16: Range<usize>,
14671 element_bounds: gpui::Bounds<Pixels>,
14672 cx: &mut ViewContext<Self>,
14673 ) -> Option<gpui::Bounds<Pixels>> {
14674 let text_layout_details = self.text_layout_details(cx);
14675 let style = &text_layout_details.editor_style;
14676 let font_id = cx.text_system().resolve_font(&style.text.font());
14677 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14678 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14679
14680 let em_width = cx
14681 .text_system()
14682 .typographic_bounds(font_id, font_size, 'm')
14683 .unwrap()
14684 .size
14685 .width;
14686
14687 let snapshot = self.snapshot(cx);
14688 let scroll_position = snapshot.scroll_position();
14689 let scroll_left = scroll_position.x * em_width;
14690
14691 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14692 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14693 + self.gutter_dimensions.width;
14694 let y = line_height * (start.row().as_f32() - scroll_position.y);
14695
14696 Some(Bounds {
14697 origin: element_bounds.origin + point(x, y),
14698 size: size(em_width, line_height),
14699 })
14700 }
14701}
14702
14703trait SelectionExt {
14704 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14705 fn spanned_rows(
14706 &self,
14707 include_end_if_at_line_start: bool,
14708 map: &DisplaySnapshot,
14709 ) -> Range<MultiBufferRow>;
14710}
14711
14712impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14713 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14714 let start = self
14715 .start
14716 .to_point(&map.buffer_snapshot)
14717 .to_display_point(map);
14718 let end = self
14719 .end
14720 .to_point(&map.buffer_snapshot)
14721 .to_display_point(map);
14722 if self.reversed {
14723 end..start
14724 } else {
14725 start..end
14726 }
14727 }
14728
14729 fn spanned_rows(
14730 &self,
14731 include_end_if_at_line_start: bool,
14732 map: &DisplaySnapshot,
14733 ) -> Range<MultiBufferRow> {
14734 let start = self.start.to_point(&map.buffer_snapshot);
14735 let mut end = self.end.to_point(&map.buffer_snapshot);
14736 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14737 end.row -= 1;
14738 }
14739
14740 let buffer_start = map.prev_line_boundary(start).0;
14741 let buffer_end = map.next_line_boundary(end).0;
14742 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14743 }
14744}
14745
14746impl<T: InvalidationRegion> InvalidationStack<T> {
14747 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14748 where
14749 S: Clone + ToOffset,
14750 {
14751 while let Some(region) = self.last() {
14752 let all_selections_inside_invalidation_ranges =
14753 if selections.len() == region.ranges().len() {
14754 selections
14755 .iter()
14756 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14757 .all(|(selection, invalidation_range)| {
14758 let head = selection.head().to_offset(buffer);
14759 invalidation_range.start <= head && invalidation_range.end >= head
14760 })
14761 } else {
14762 false
14763 };
14764
14765 if all_selections_inside_invalidation_ranges {
14766 break;
14767 } else {
14768 self.pop();
14769 }
14770 }
14771 }
14772}
14773
14774impl<T> Default for InvalidationStack<T> {
14775 fn default() -> Self {
14776 Self(Default::default())
14777 }
14778}
14779
14780impl<T> Deref for InvalidationStack<T> {
14781 type Target = Vec<T>;
14782
14783 fn deref(&self) -> &Self::Target {
14784 &self.0
14785 }
14786}
14787
14788impl<T> DerefMut for InvalidationStack<T> {
14789 fn deref_mut(&mut self) -> &mut Self::Target {
14790 &mut self.0
14791 }
14792}
14793
14794impl InvalidationRegion for SnippetState {
14795 fn ranges(&self) -> &[Range<Anchor>] {
14796 &self.ranges[self.active_index]
14797 }
14798}
14799
14800pub fn diagnostic_block_renderer(
14801 diagnostic: Diagnostic,
14802 max_message_rows: Option<u8>,
14803 allow_closing: bool,
14804 _is_valid: bool,
14805) -> RenderBlock {
14806 let (text_without_backticks, code_ranges) =
14807 highlight_diagnostic_message(&diagnostic, max_message_rows);
14808
14809 Arc::new(move |cx: &mut BlockContext| {
14810 let group_id: SharedString = cx.block_id.to_string().into();
14811
14812 let mut text_style = cx.text_style().clone();
14813 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14814 let theme_settings = ThemeSettings::get_global(cx);
14815 text_style.font_family = theme_settings.buffer_font.family.clone();
14816 text_style.font_style = theme_settings.buffer_font.style;
14817 text_style.font_features = theme_settings.buffer_font.features.clone();
14818 text_style.font_weight = theme_settings.buffer_font.weight;
14819
14820 let multi_line_diagnostic = diagnostic.message.contains('\n');
14821
14822 let buttons = |diagnostic: &Diagnostic| {
14823 if multi_line_diagnostic {
14824 v_flex()
14825 } else {
14826 h_flex()
14827 }
14828 .when(allow_closing, |div| {
14829 div.children(diagnostic.is_primary.then(|| {
14830 IconButton::new("close-block", IconName::XCircle)
14831 .icon_color(Color::Muted)
14832 .size(ButtonSize::Compact)
14833 .style(ButtonStyle::Transparent)
14834 .visible_on_hover(group_id.clone())
14835 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14836 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14837 }))
14838 })
14839 .child(
14840 IconButton::new("copy-block", IconName::Copy)
14841 .icon_color(Color::Muted)
14842 .size(ButtonSize::Compact)
14843 .style(ButtonStyle::Transparent)
14844 .visible_on_hover(group_id.clone())
14845 .on_click({
14846 let message = diagnostic.message.clone();
14847 move |_click, cx| {
14848 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14849 }
14850 })
14851 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14852 )
14853 };
14854
14855 let icon_size = buttons(&diagnostic)
14856 .into_any_element()
14857 .layout_as_root(AvailableSpace::min_size(), cx);
14858
14859 h_flex()
14860 .id(cx.block_id)
14861 .group(group_id.clone())
14862 .relative()
14863 .size_full()
14864 .block_mouse_down()
14865 .pl(cx.gutter_dimensions.width)
14866 .w(cx.max_width - cx.gutter_dimensions.full_width())
14867 .child(
14868 div()
14869 .flex()
14870 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14871 .flex_shrink(),
14872 )
14873 .child(buttons(&diagnostic))
14874 .child(div().flex().flex_shrink_0().child(
14875 StyledText::new(text_without_backticks.clone()).with_highlights(
14876 &text_style,
14877 code_ranges.iter().map(|range| {
14878 (
14879 range.clone(),
14880 HighlightStyle {
14881 font_weight: Some(FontWeight::BOLD),
14882 ..Default::default()
14883 },
14884 )
14885 }),
14886 ),
14887 ))
14888 .into_any_element()
14889 })
14890}
14891
14892pub fn highlight_diagnostic_message(
14893 diagnostic: &Diagnostic,
14894 mut max_message_rows: Option<u8>,
14895) -> (SharedString, Vec<Range<usize>>) {
14896 let mut text_without_backticks = String::new();
14897 let mut code_ranges = Vec::new();
14898
14899 if let Some(source) = &diagnostic.source {
14900 text_without_backticks.push_str(source);
14901 code_ranges.push(0..source.len());
14902 text_without_backticks.push_str(": ");
14903 }
14904
14905 let mut prev_offset = 0;
14906 let mut in_code_block = false;
14907 let has_row_limit = max_message_rows.is_some();
14908 let mut newline_indices = diagnostic
14909 .message
14910 .match_indices('\n')
14911 .filter(|_| has_row_limit)
14912 .map(|(ix, _)| ix)
14913 .fuse()
14914 .peekable();
14915
14916 for (quote_ix, _) in diagnostic
14917 .message
14918 .match_indices('`')
14919 .chain([(diagnostic.message.len(), "")])
14920 {
14921 let mut first_newline_ix = None;
14922 let mut last_newline_ix = None;
14923 while let Some(newline_ix) = newline_indices.peek() {
14924 if *newline_ix < quote_ix {
14925 if first_newline_ix.is_none() {
14926 first_newline_ix = Some(*newline_ix);
14927 }
14928 last_newline_ix = Some(*newline_ix);
14929
14930 if let Some(rows_left) = &mut max_message_rows {
14931 if *rows_left == 0 {
14932 break;
14933 } else {
14934 *rows_left -= 1;
14935 }
14936 }
14937 let _ = newline_indices.next();
14938 } else {
14939 break;
14940 }
14941 }
14942 let prev_len = text_without_backticks.len();
14943 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14944 text_without_backticks.push_str(new_text);
14945 if in_code_block {
14946 code_ranges.push(prev_len..text_without_backticks.len());
14947 }
14948 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14949 in_code_block = !in_code_block;
14950 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14951 text_without_backticks.push_str("...");
14952 break;
14953 }
14954 }
14955
14956 (text_without_backticks.into(), code_ranges)
14957}
14958
14959fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14960 match severity {
14961 DiagnosticSeverity::ERROR => colors.error,
14962 DiagnosticSeverity::WARNING => colors.warning,
14963 DiagnosticSeverity::INFORMATION => colors.info,
14964 DiagnosticSeverity::HINT => colors.info,
14965 _ => colors.ignored,
14966 }
14967}
14968
14969pub fn styled_runs_for_code_label<'a>(
14970 label: &'a CodeLabel,
14971 syntax_theme: &'a theme::SyntaxTheme,
14972) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14973 let fade_out = HighlightStyle {
14974 fade_out: Some(0.35),
14975 ..Default::default()
14976 };
14977
14978 let mut prev_end = label.filter_range.end;
14979 label
14980 .runs
14981 .iter()
14982 .enumerate()
14983 .flat_map(move |(ix, (range, highlight_id))| {
14984 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14985 style
14986 } else {
14987 return Default::default();
14988 };
14989 let mut muted_style = style;
14990 muted_style.highlight(fade_out);
14991
14992 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14993 if range.start >= label.filter_range.end {
14994 if range.start > prev_end {
14995 runs.push((prev_end..range.start, fade_out));
14996 }
14997 runs.push((range.clone(), muted_style));
14998 } else if range.end <= label.filter_range.end {
14999 runs.push((range.clone(), style));
15000 } else {
15001 runs.push((range.start..label.filter_range.end, style));
15002 runs.push((label.filter_range.end..range.end, muted_style));
15003 }
15004 prev_end = cmp::max(prev_end, range.end);
15005
15006 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
15007 runs.push((prev_end..label.text.len(), fade_out));
15008 }
15009
15010 runs
15011 })
15012}
15013
15014pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15015 let mut prev_index = 0;
15016 let mut prev_codepoint: Option<char> = None;
15017 text.char_indices()
15018 .chain([(text.len(), '\0')])
15019 .filter_map(move |(index, codepoint)| {
15020 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15021 let is_boundary = index == text.len()
15022 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15023 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15024 if is_boundary {
15025 let chunk = &text[prev_index..index];
15026 prev_index = index;
15027 Some(chunk)
15028 } else {
15029 None
15030 }
15031 })
15032}
15033
15034pub trait RangeToAnchorExt: Sized {
15035 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15036
15037 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15038 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15039 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15040 }
15041}
15042
15043impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15044 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15045 let start_offset = self.start.to_offset(snapshot);
15046 let end_offset = self.end.to_offset(snapshot);
15047 if start_offset == end_offset {
15048 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15049 } else {
15050 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15051 }
15052 }
15053}
15054
15055pub trait RowExt {
15056 fn as_f32(&self) -> f32;
15057
15058 fn next_row(&self) -> Self;
15059
15060 fn previous_row(&self) -> Self;
15061
15062 fn minus(&self, other: Self) -> u32;
15063}
15064
15065impl RowExt for DisplayRow {
15066 fn as_f32(&self) -> f32 {
15067 self.0 as f32
15068 }
15069
15070 fn next_row(&self) -> Self {
15071 Self(self.0 + 1)
15072 }
15073
15074 fn previous_row(&self) -> Self {
15075 Self(self.0.saturating_sub(1))
15076 }
15077
15078 fn minus(&self, other: Self) -> u32 {
15079 self.0 - other.0
15080 }
15081}
15082
15083impl RowExt for MultiBufferRow {
15084 fn as_f32(&self) -> f32 {
15085 self.0 as f32
15086 }
15087
15088 fn next_row(&self) -> Self {
15089 Self(self.0 + 1)
15090 }
15091
15092 fn previous_row(&self) -> Self {
15093 Self(self.0.saturating_sub(1))
15094 }
15095
15096 fn minus(&self, other: Self) -> u32 {
15097 self.0 - other.0
15098 }
15099}
15100
15101trait RowRangeExt {
15102 type Row;
15103
15104 fn len(&self) -> usize;
15105
15106 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15107}
15108
15109impl RowRangeExt for Range<MultiBufferRow> {
15110 type Row = MultiBufferRow;
15111
15112 fn len(&self) -> usize {
15113 (self.end.0 - self.start.0) as usize
15114 }
15115
15116 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15117 (self.start.0..self.end.0).map(MultiBufferRow)
15118 }
15119}
15120
15121impl RowRangeExt for Range<DisplayRow> {
15122 type Row = DisplayRow;
15123
15124 fn len(&self) -> usize {
15125 (self.end.0 - self.start.0) as usize
15126 }
15127
15128 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15129 (self.start.0..self.end.0).map(DisplayRow)
15130 }
15131}
15132
15133fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15134 if hunk.diff_base_byte_range.is_empty() {
15135 DiffHunkStatus::Added
15136 } else if hunk.row_range.is_empty() {
15137 DiffHunkStatus::Removed
15138 } else {
15139 DiffHunkStatus::Modified
15140 }
15141}
15142
15143/// If select range has more than one line, we
15144/// just point the cursor to range.start.
15145fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15146 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15147 range
15148 } else {
15149 range.start..range.start
15150 }
15151}
15152
15153const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);