1#![allow(rustdoc::private_intra_doc_links)]
2//! This is the place where everything editor-related is stored (data-wise) and displayed (ui-wise).
3//! The main point of interest in this crate is [`Editor`] type, which is used in every other Zed part as a user input element.
4//! It comes in different flavors: single line, multiline and a fixed height one.
5//!
6//! Editor contains of multiple large submodules:
7//! * [`element`] — the place where all rendering happens
8//! * [`display_map`] - chunks up text in the editor into the logical blocks, establishes coordinates and mapping between each of them.
9//! Contains all metadata related to text transformations (folds, fake inlay text insertions, soft wraps, tab markup, etc.).
10//! * [`inlay_hint_cache`] - is a storage of inlay hints out of LSP requests, responsible for querying LSP and updating `display_map`'s state accordingly.
11//!
12//! All other submodules and structs are mostly concerned with holding editor data about the way it displays current buffer region(s).
13//!
14//! If you're looking to improve Vim mode, you should check out Vim crate that wraps Editor and overrides its behavior.
15pub mod actions;
16mod blame_entry_tooltip;
17mod blink_manager;
18mod clangd_ext;
19mod debounced_delay;
20pub mod display_map;
21mod editor_settings;
22mod editor_settings_controls;
23mod element;
24mod git;
25mod highlight_matching_bracket;
26mod hover_links;
27mod hover_popover;
28mod hunk_diff;
29mod indent_guides;
30mod inlay_hint_cache;
31pub mod items;
32mod linked_editing_ranges;
33mod lsp_ext;
34mod mouse_context_menu;
35pub mod movement;
36mod persistence;
37mod proposed_changes_editor;
38mod rust_analyzer_ext;
39pub mod scroll;
40mod selections_collection;
41pub mod tasks;
42
43#[cfg(test)]
44mod editor_tests;
45mod signature_help;
46#[cfg(any(test, feature = "test-support"))]
47pub mod test;
48
49use ::git::diff::DiffHunkStatus;
50pub(crate) use actions::*;
51pub use actions::{OpenExcerpts, OpenExcerptsSplit};
52use aho_corasick::AhoCorasick;
53use anyhow::{anyhow, Context as _, Result};
54use blink_manager::BlinkManager;
55use client::{Collaborator, ParticipantIndex};
56use clock::ReplicaId;
57use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
58use convert_case::{Case, Casing};
59use debounced_delay::DebouncedDelay;
60use display_map::*;
61pub use display_map::{DisplayPoint, FoldPlaceholder};
62pub use editor_settings::{
63 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
64};
65pub use editor_settings_controls::*;
66use element::LineWithInvisibles;
67pub use element::{
68 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
69};
70use futures::{future, FutureExt};
71use fuzzy::{StringMatch, StringMatchCandidate};
72use git::blame::GitBlame;
73use gpui::{
74 div, impl_actions, point, prelude::*, px, relative, size, uniform_list, Action, AnyElement,
75 AppContext, AsyncWindowContext, AvailableSpace, BackgroundExecutor, Bounds, ClipboardEntry,
76 ClipboardItem, Context, DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent,
77 FocusableView, FontId, FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext,
78 ListSizingBehavior, Model, ModelContext, MouseButton, PaintQuad, ParentElement, Pixels, Render,
79 ScrollStrategy, SharedString, Size, StrikethroughStyle, Styled, StyledText, Subscription, Task,
80 TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle, UniformListScrollHandle, View,
81 ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle, WeakView, WindowContext,
82};
83use highlight_matching_bracket::refresh_matching_bracket_highlights;
84use hover_popover::{hide_hover, HoverState};
85pub(crate) use hunk_diff::HoveredHunk;
86use hunk_diff::{diff_hunk_to_display, ExpandedHunks};
87use indent_guides::ActiveIndentGuidesState;
88use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
89pub use inline_completion::Direction;
90use inline_completion::{InlayProposal, InlineCompletionProvider, InlineCompletionProviderHandle};
91pub use items::MAX_TAB_TITLE_LEN;
92use itertools::Itertools;
93use language::{
94 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
95 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
96 CursorShape, Diagnostic, Documentation, IndentKind, IndentSize, Language, OffsetRangeExt,
97 Point, Selection, SelectionGoal, TransactionId,
98};
99use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
100use linked_editing_ranges::refresh_linked_ranges;
101pub use proposed_changes_editor::{
102 ProposedChangeLocation, ProposedChangesEditor, 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(Debug, Copy, Clone, PartialEq, Eq)]
277pub enum Navigated {
278 Yes,
279 No,
280}
281
282impl Navigated {
283 pub fn from_bool(yes: bool) -> Navigated {
284 if yes {
285 Navigated::Yes
286 } else {
287 Navigated::No
288 }
289 }
290}
291
292pub fn init_settings(cx: &mut AppContext) {
293 EditorSettings::register(cx);
294}
295
296pub fn init(cx: &mut AppContext) {
297 init_settings(cx);
298
299 workspace::register_project_item::<Editor>(cx);
300 workspace::FollowableViewRegistry::register::<Editor>(cx);
301 workspace::register_serializable_item::<Editor>(cx);
302
303 cx.observe_new_views(
304 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
305 workspace.register_action(Editor::new_file);
306 workspace.register_action(Editor::new_file_vertical);
307 workspace.register_action(Editor::new_file_horizontal);
308 },
309 )
310 .detach();
311
312 cx.on_action(move |_: &workspace::NewFile, cx| {
313 let app_state = workspace::AppState::global(cx);
314 if let Some(app_state) = app_state.upgrade() {
315 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
316 Editor::new_file(workspace, &Default::default(), cx)
317 })
318 .detach();
319 }
320 });
321 cx.on_action(move |_: &workspace::NewWindow, cx| {
322 let app_state = workspace::AppState::global(cx);
323 if let Some(app_state) = app_state.upgrade() {
324 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
325 Editor::new_file(workspace, &Default::default(), cx)
326 })
327 .detach();
328 }
329 });
330}
331
332pub struct SearchWithinRange;
333
334trait InvalidationRegion {
335 fn ranges(&self) -> &[Range<Anchor>];
336}
337
338#[derive(Clone, Debug, PartialEq)]
339pub enum SelectPhase {
340 Begin {
341 position: DisplayPoint,
342 add: bool,
343 click_count: usize,
344 },
345 BeginColumnar {
346 position: DisplayPoint,
347 reset: bool,
348 goal_column: u32,
349 },
350 Extend {
351 position: DisplayPoint,
352 click_count: usize,
353 },
354 Update {
355 position: DisplayPoint,
356 goal_column: u32,
357 scroll_delta: gpui::Point<f32>,
358 },
359 End,
360}
361
362#[derive(Clone, Debug)]
363pub enum SelectMode {
364 Character,
365 Word(Range<Anchor>),
366 Line(Range<Anchor>),
367 All,
368}
369
370#[derive(Copy, Clone, PartialEq, Eq, Debug)]
371pub enum EditorMode {
372 SingleLine { auto_width: bool },
373 AutoHeight { max_lines: usize },
374 Full,
375}
376
377#[derive(Copy, Clone, Debug)]
378pub enum SoftWrap {
379 /// Prefer not to wrap at all.
380 ///
381 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
382 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
383 GitDiff,
384 /// Prefer a single line generally, unless an overly long line is encountered.
385 None,
386 /// Soft wrap lines that exceed the editor width.
387 EditorWidth,
388 /// Soft wrap lines at the preferred line length.
389 Column(u32),
390 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
391 Bounded(u32),
392}
393
394#[derive(Clone)]
395pub struct EditorStyle {
396 pub background: Hsla,
397 pub local_player: PlayerColor,
398 pub text: TextStyle,
399 pub scrollbar_width: Pixels,
400 pub syntax: Arc<SyntaxTheme>,
401 pub status: StatusColors,
402 pub inlay_hints_style: HighlightStyle,
403 pub suggestions_style: HighlightStyle,
404 pub unnecessary_code_fade: f32,
405}
406
407impl Default for EditorStyle {
408 fn default() -> Self {
409 Self {
410 background: Hsla::default(),
411 local_player: PlayerColor::default(),
412 text: TextStyle::default(),
413 scrollbar_width: Pixels::default(),
414 syntax: Default::default(),
415 // HACK: Status colors don't have a real default.
416 // We should look into removing the status colors from the editor
417 // style and retrieve them directly from the theme.
418 status: StatusColors::dark(),
419 inlay_hints_style: HighlightStyle::default(),
420 suggestions_style: HighlightStyle::default(),
421 unnecessary_code_fade: Default::default(),
422 }
423 }
424}
425
426pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
427 let show_background = language_settings::language_settings(None, None, cx)
428 .inlay_hints
429 .show_background;
430
431 HighlightStyle {
432 color: Some(cx.theme().status().hint),
433 background_color: show_background.then(|| cx.theme().status().hint_background),
434 ..HighlightStyle::default()
435 }
436}
437
438type CompletionId = usize;
439
440#[derive(Clone, Debug)]
441struct CompletionState {
442 // render_inlay_ids represents the inlay hints that are inserted
443 // for rendering the inline completions. They may be discontinuous
444 // in the event that the completion provider returns some intersection
445 // with the existing content.
446 render_inlay_ids: Vec<InlayId>,
447 // text is the resulting rope that is inserted when the user accepts a completion.
448 text: Rope,
449 // position is the position of the cursor when the completion was triggered.
450 position: multi_buffer::Anchor,
451 // delete_range is the range of text that this completion state covers.
452 // if the completion is accepted, this range should be deleted.
453 delete_range: Option<Range<multi_buffer::Anchor>>,
454}
455
456#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
457struct EditorActionId(usize);
458
459impl EditorActionId {
460 pub fn post_inc(&mut self) -> Self {
461 let answer = self.0;
462
463 *self = Self(answer + 1);
464
465 Self(answer)
466 }
467}
468
469// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
470// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
471
472type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
473type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
474
475#[derive(Default)]
476struct ScrollbarMarkerState {
477 scrollbar_size: Size<Pixels>,
478 dirty: bool,
479 markers: Arc<[PaintQuad]>,
480 pending_refresh: Option<Task<Result<()>>>,
481}
482
483impl ScrollbarMarkerState {
484 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
485 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
486 }
487}
488
489#[derive(Clone, Debug)]
490struct RunnableTasks {
491 templates: Vec<(TaskSourceKind, TaskTemplate)>,
492 offset: MultiBufferOffset,
493 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
494 column: u32,
495 // Values of all named captures, including those starting with '_'
496 extra_variables: HashMap<String, String>,
497 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
498 context_range: Range<BufferOffset>,
499}
500
501impl RunnableTasks {
502 fn resolve<'a>(
503 &'a self,
504 cx: &'a task::TaskContext,
505 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
506 self.templates.iter().filter_map(|(kind, template)| {
507 template
508 .resolve_task(&kind.to_id_base(), cx)
509 .map(|task| (kind.clone(), task))
510 })
511 }
512}
513
514#[derive(Clone)]
515struct ResolvedTasks {
516 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
517 position: Anchor,
518}
519#[derive(Copy, Clone, Debug)]
520struct MultiBufferOffset(usize);
521#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
522struct BufferOffset(usize);
523
524// Addons allow storing per-editor state in other crates (e.g. Vim)
525pub trait Addon: 'static {
526 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
527
528 fn to_any(&self) -> &dyn std::any::Any;
529}
530
531#[derive(Debug, Copy, Clone, PartialEq, Eq)]
532pub enum IsVimMode {
533 Yes,
534 No,
535}
536
537/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
538///
539/// See the [module level documentation](self) for more information.
540pub struct Editor {
541 focus_handle: FocusHandle,
542 last_focused_descendant: Option<WeakFocusHandle>,
543 /// The text buffer being edited
544 buffer: Model<MultiBuffer>,
545 /// Map of how text in the buffer should be displayed.
546 /// Handles soft wraps, folds, fake inlay text insertions, etc.
547 pub display_map: Model<DisplayMap>,
548 pub selections: SelectionsCollection,
549 pub scroll_manager: ScrollManager,
550 /// When inline assist editors are linked, they all render cursors because
551 /// typing enters text into each of them, even the ones that aren't focused.
552 pub(crate) show_cursor_when_unfocused: bool,
553 columnar_selection_tail: Option<Anchor>,
554 add_selections_state: Option<AddSelectionsState>,
555 select_next_state: Option<SelectNextState>,
556 select_prev_state: Option<SelectNextState>,
557 selection_history: SelectionHistory,
558 autoclose_regions: Vec<AutocloseRegion>,
559 snippet_stack: InvalidationStack<SnippetState>,
560 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
561 ime_transaction: Option<TransactionId>,
562 active_diagnostics: Option<ActiveDiagnosticGroup>,
563 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
564
565 project: Option<Model<Project>>,
566 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
567 completion_provider: Option<Box<dyn CompletionProvider>>,
568 collaboration_hub: Option<Box<dyn CollaborationHub>>,
569 blink_manager: Model<BlinkManager>,
570 show_cursor_names: bool,
571 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
572 pub show_local_selections: bool,
573 mode: EditorMode,
574 show_breadcrumbs: bool,
575 show_gutter: bool,
576 show_line_numbers: Option<bool>,
577 use_relative_line_numbers: Option<bool>,
578 show_git_diff_gutter: Option<bool>,
579 show_code_actions: Option<bool>,
580 show_runnables: Option<bool>,
581 show_wrap_guides: Option<bool>,
582 show_indent_guides: Option<bool>,
583 placeholder_text: Option<Arc<str>>,
584 highlight_order: usize,
585 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
586 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
587 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
588 scrollbar_marker_state: ScrollbarMarkerState,
589 active_indent_guides_state: ActiveIndentGuidesState,
590 nav_history: Option<ItemNavHistory>,
591 context_menu: RwLock<Option<ContextMenu>>,
592 mouse_context_menu: Option<MouseContextMenu>,
593 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
594 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
595 signature_help_state: SignatureHelpState,
596 auto_signature_help: Option<bool>,
597 find_all_references_task_sources: Vec<Anchor>,
598 next_completion_id: CompletionId,
599 completion_documentation_pre_resolve_debounce: DebouncedDelay,
600 available_code_actions: Option<(Location, Arc<[AvailableCodeAction]>)>,
601 code_actions_task: Option<Task<Result<()>>>,
602 document_highlights_task: Option<Task<()>>,
603 linked_editing_range_task: Option<Task<Option<()>>>,
604 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
605 pending_rename: Option<RenameState>,
606 searchable: bool,
607 cursor_shape: CursorShape,
608 current_line_highlight: Option<CurrentLineHighlight>,
609 collapse_matches: bool,
610 autoindent_mode: Option<AutoindentMode>,
611 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
612 input_enabled: bool,
613 use_modal_editing: bool,
614 read_only: bool,
615 leader_peer_id: Option<PeerId>,
616 remote_id: Option<ViewId>,
617 hover_state: HoverState,
618 gutter_hovered: bool,
619 hovered_link_state: Option<HoveredLinkState>,
620 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
621 code_action_providers: Vec<Arc<dyn CodeActionProvider>>,
622 active_inline_completion: Option<CompletionState>,
623 // enable_inline_completions is a switch that Vim can use to disable
624 // inline completions based on its mode.
625 enable_inline_completions: bool,
626 show_inline_completions_override: Option<bool>,
627 inlay_hint_cache: InlayHintCache,
628 expanded_hunks: ExpandedHunks,
629 next_inlay_id: usize,
630 _subscriptions: Vec<Subscription>,
631 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
632 gutter_dimensions: GutterDimensions,
633 style: Option<EditorStyle>,
634 text_style_refinement: Option<TextStyleRefinement>,
635 next_editor_action_id: EditorActionId,
636 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
637 use_autoclose: bool,
638 use_auto_surround: bool,
639 auto_replace_emoji_shortcode: bool,
640 show_git_blame_gutter: bool,
641 show_git_blame_inline: bool,
642 show_git_blame_inline_delay_task: Option<Task<()>>,
643 git_blame_inline_enabled: bool,
644 serialize_dirty_buffers: bool,
645 show_selection_menu: Option<bool>,
646 blame: Option<Model<GitBlame>>,
647 blame_subscription: Option<Subscription>,
648 custom_context_menu: Option<
649 Box<
650 dyn 'static
651 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
652 >,
653 >,
654 last_bounds: Option<Bounds<Pixels>>,
655 expect_bounds_change: Option<Bounds<Pixels>>,
656 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
657 tasks_update_task: Option<Task<()>>,
658 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
659 breadcrumb_header: Option<String>,
660 focused_block: Option<FocusedBlock>,
661 next_scroll_position: NextScrollCursorCenterTopBottom,
662 addons: HashMap<TypeId, Box<dyn Addon>>,
663 _scroll_cursor_center_top_bottom_task: Task<()>,
664}
665
666#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
667enum NextScrollCursorCenterTopBottom {
668 #[default]
669 Center,
670 Top,
671 Bottom,
672}
673
674impl NextScrollCursorCenterTopBottom {
675 fn next(&self) -> Self {
676 match self {
677 Self::Center => Self::Top,
678 Self::Top => Self::Bottom,
679 Self::Bottom => Self::Center,
680 }
681 }
682}
683
684#[derive(Clone)]
685pub struct EditorSnapshot {
686 pub mode: EditorMode,
687 show_gutter: bool,
688 show_line_numbers: Option<bool>,
689 show_git_diff_gutter: Option<bool>,
690 show_code_actions: Option<bool>,
691 show_runnables: Option<bool>,
692 git_blame_gutter_max_author_length: Option<usize>,
693 pub display_snapshot: DisplaySnapshot,
694 pub placeholder_text: Option<Arc<str>>,
695 is_focused: bool,
696 scroll_anchor: ScrollAnchor,
697 ongoing_scroll: OngoingScroll,
698 current_line_highlight: CurrentLineHighlight,
699 gutter_hovered: bool,
700}
701
702const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
703
704#[derive(Default, Debug, Clone, Copy)]
705pub struct GutterDimensions {
706 pub left_padding: Pixels,
707 pub right_padding: Pixels,
708 pub width: Pixels,
709 pub margin: Pixels,
710 pub git_blame_entries_width: Option<Pixels>,
711}
712
713impl GutterDimensions {
714 /// The full width of the space taken up by the gutter.
715 pub fn full_width(&self) -> Pixels {
716 self.margin + self.width
717 }
718
719 /// The width of the space reserved for the fold indicators,
720 /// use alongside 'justify_end' and `gutter_width` to
721 /// right align content with the line numbers
722 pub fn fold_area_width(&self) -> Pixels {
723 self.margin + self.right_padding
724 }
725}
726
727#[derive(Debug)]
728pub struct RemoteSelection {
729 pub replica_id: ReplicaId,
730 pub selection: Selection<Anchor>,
731 pub cursor_shape: CursorShape,
732 pub peer_id: PeerId,
733 pub line_mode: bool,
734 pub participant_index: Option<ParticipantIndex>,
735 pub user_name: Option<SharedString>,
736}
737
738#[derive(Clone, Debug)]
739struct SelectionHistoryEntry {
740 selections: Arc<[Selection<Anchor>]>,
741 select_next_state: Option<SelectNextState>,
742 select_prev_state: Option<SelectNextState>,
743 add_selections_state: Option<AddSelectionsState>,
744}
745
746enum SelectionHistoryMode {
747 Normal,
748 Undoing,
749 Redoing,
750}
751
752#[derive(Clone, PartialEq, Eq, Hash)]
753struct HoveredCursor {
754 replica_id: u16,
755 selection_id: usize,
756}
757
758impl Default for SelectionHistoryMode {
759 fn default() -> Self {
760 Self::Normal
761 }
762}
763
764#[derive(Default)]
765struct SelectionHistory {
766 #[allow(clippy::type_complexity)]
767 selections_by_transaction:
768 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
769 mode: SelectionHistoryMode,
770 undo_stack: VecDeque<SelectionHistoryEntry>,
771 redo_stack: VecDeque<SelectionHistoryEntry>,
772}
773
774impl SelectionHistory {
775 fn insert_transaction(
776 &mut self,
777 transaction_id: TransactionId,
778 selections: Arc<[Selection<Anchor>]>,
779 ) {
780 self.selections_by_transaction
781 .insert(transaction_id, (selections, None));
782 }
783
784 #[allow(clippy::type_complexity)]
785 fn transaction(
786 &self,
787 transaction_id: TransactionId,
788 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
789 self.selections_by_transaction.get(&transaction_id)
790 }
791
792 #[allow(clippy::type_complexity)]
793 fn transaction_mut(
794 &mut self,
795 transaction_id: TransactionId,
796 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
797 self.selections_by_transaction.get_mut(&transaction_id)
798 }
799
800 fn push(&mut self, entry: SelectionHistoryEntry) {
801 if !entry.selections.is_empty() {
802 match self.mode {
803 SelectionHistoryMode::Normal => {
804 self.push_undo(entry);
805 self.redo_stack.clear();
806 }
807 SelectionHistoryMode::Undoing => self.push_redo(entry),
808 SelectionHistoryMode::Redoing => self.push_undo(entry),
809 }
810 }
811 }
812
813 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
814 if self
815 .undo_stack
816 .back()
817 .map_or(true, |e| e.selections != entry.selections)
818 {
819 self.undo_stack.push_back(entry);
820 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
821 self.undo_stack.pop_front();
822 }
823 }
824 }
825
826 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
827 if self
828 .redo_stack
829 .back()
830 .map_or(true, |e| e.selections != entry.selections)
831 {
832 self.redo_stack.push_back(entry);
833 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
834 self.redo_stack.pop_front();
835 }
836 }
837 }
838}
839
840struct RowHighlight {
841 index: usize,
842 range: Range<Anchor>,
843 color: Hsla,
844 should_autoscroll: bool,
845}
846
847#[derive(Clone, Debug)]
848struct AddSelectionsState {
849 above: bool,
850 stack: Vec<usize>,
851}
852
853#[derive(Clone)]
854struct SelectNextState {
855 query: AhoCorasick,
856 wordwise: bool,
857 done: bool,
858}
859
860impl std::fmt::Debug for SelectNextState {
861 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
862 f.debug_struct(std::any::type_name::<Self>())
863 .field("wordwise", &self.wordwise)
864 .field("done", &self.done)
865 .finish()
866 }
867}
868
869#[derive(Debug)]
870struct AutocloseRegion {
871 selection_id: usize,
872 range: Range<Anchor>,
873 pair: BracketPair,
874}
875
876#[derive(Debug)]
877struct SnippetState {
878 ranges: Vec<Vec<Range<Anchor>>>,
879 active_index: usize,
880 choices: Vec<Option<Vec<String>>>,
881}
882
883#[doc(hidden)]
884pub struct RenameState {
885 pub range: Range<Anchor>,
886 pub old_name: Arc<str>,
887 pub editor: View<Editor>,
888 block_id: CustomBlockId,
889}
890
891struct InvalidationStack<T>(Vec<T>);
892
893struct RegisteredInlineCompletionProvider {
894 provider: Arc<dyn InlineCompletionProviderHandle>,
895 _subscription: Subscription,
896}
897
898enum ContextMenu {
899 Completions(CompletionsMenu),
900 CodeActions(CodeActionsMenu),
901}
902
903impl ContextMenu {
904 fn select_first(
905 &mut self,
906 provider: Option<&dyn CompletionProvider>,
907 cx: &mut ViewContext<Editor>,
908 ) -> bool {
909 if self.visible() {
910 match self {
911 ContextMenu::Completions(menu) => menu.select_first(provider, cx),
912 ContextMenu::CodeActions(menu) => menu.select_first(cx),
913 }
914 true
915 } else {
916 false
917 }
918 }
919
920 fn select_prev(
921 &mut self,
922 provider: Option<&dyn CompletionProvider>,
923 cx: &mut ViewContext<Editor>,
924 ) -> bool {
925 if self.visible() {
926 match self {
927 ContextMenu::Completions(menu) => menu.select_prev(provider, cx),
928 ContextMenu::CodeActions(menu) => menu.select_prev(cx),
929 }
930 true
931 } else {
932 false
933 }
934 }
935
936 fn select_next(
937 &mut self,
938 provider: Option<&dyn CompletionProvider>,
939 cx: &mut ViewContext<Editor>,
940 ) -> bool {
941 if self.visible() {
942 match self {
943 ContextMenu::Completions(menu) => menu.select_next(provider, cx),
944 ContextMenu::CodeActions(menu) => menu.select_next(cx),
945 }
946 true
947 } else {
948 false
949 }
950 }
951
952 fn select_last(
953 &mut self,
954 provider: Option<&dyn CompletionProvider>,
955 cx: &mut ViewContext<Editor>,
956 ) -> bool {
957 if self.visible() {
958 match self {
959 ContextMenu::Completions(menu) => menu.select_last(provider, cx),
960 ContextMenu::CodeActions(menu) => menu.select_last(cx),
961 }
962 true
963 } else {
964 false
965 }
966 }
967
968 fn visible(&self) -> bool {
969 match self {
970 ContextMenu::Completions(menu) => menu.visible(),
971 ContextMenu::CodeActions(menu) => menu.visible(),
972 }
973 }
974
975 fn render(
976 &self,
977 cursor_position: DisplayPoint,
978 style: &EditorStyle,
979 max_height: Pixels,
980 workspace: Option<WeakView<Workspace>>,
981 cx: &mut ViewContext<Editor>,
982 ) -> (ContextMenuOrigin, AnyElement) {
983 match self {
984 ContextMenu::Completions(menu) => (
985 ContextMenuOrigin::EditorPoint(cursor_position),
986 menu.render(style, max_height, workspace, cx),
987 ),
988 ContextMenu::CodeActions(menu) => menu.render(cursor_position, style, max_height, cx),
989 }
990 }
991}
992
993enum ContextMenuOrigin {
994 EditorPoint(DisplayPoint),
995 GutterIndicator(DisplayRow),
996}
997
998#[derive(Clone, Debug)]
999struct CompletionsMenu {
1000 id: CompletionId,
1001 sort_completions: bool,
1002 initial_position: Anchor,
1003 buffer: Model<Buffer>,
1004 completions: Arc<RwLock<Box<[Completion]>>>,
1005 match_candidates: Arc<[StringMatchCandidate]>,
1006 matches: Arc<[StringMatch]>,
1007 selected_item: usize,
1008 scroll_handle: UniformListScrollHandle,
1009 selected_completion_documentation_resolve_debounce: Option<Arc<Mutex<DebouncedDelay>>>,
1010}
1011
1012impl CompletionsMenu {
1013 fn new(
1014 id: CompletionId,
1015 sort_completions: bool,
1016 initial_position: Anchor,
1017 buffer: Model<Buffer>,
1018 completions: Box<[Completion]>,
1019 ) -> Self {
1020 let match_candidates = completions
1021 .iter()
1022 .enumerate()
1023 .map(|(id, completion)| {
1024 StringMatchCandidate::new(
1025 id,
1026 completion.label.text[completion.label.filter_range.clone()].into(),
1027 )
1028 })
1029 .collect();
1030
1031 Self {
1032 id,
1033 sort_completions,
1034 initial_position,
1035 buffer,
1036 completions: Arc::new(RwLock::new(completions)),
1037 match_candidates,
1038 matches: Vec::new().into(),
1039 selected_item: 0,
1040 scroll_handle: UniformListScrollHandle::new(),
1041 selected_completion_documentation_resolve_debounce: Some(Arc::new(Mutex::new(
1042 DebouncedDelay::new(),
1043 ))),
1044 }
1045 }
1046
1047 fn new_snippet_choices(
1048 id: CompletionId,
1049 sort_completions: bool,
1050 choices: &Vec<String>,
1051 selection: Range<Anchor>,
1052 buffer: Model<Buffer>,
1053 ) -> Self {
1054 let completions = choices
1055 .iter()
1056 .map(|choice| Completion {
1057 old_range: selection.start.text_anchor..selection.end.text_anchor,
1058 new_text: choice.to_string(),
1059 label: CodeLabel {
1060 text: choice.to_string(),
1061 runs: Default::default(),
1062 filter_range: Default::default(),
1063 },
1064 server_id: LanguageServerId(usize::MAX),
1065 documentation: None,
1066 lsp_completion: Default::default(),
1067 confirm: None,
1068 })
1069 .collect();
1070
1071 let match_candidates = choices
1072 .iter()
1073 .enumerate()
1074 .map(|(id, completion)| StringMatchCandidate::new(id, completion.to_string()))
1075 .collect();
1076 let matches = choices
1077 .iter()
1078 .enumerate()
1079 .map(|(id, completion)| StringMatch {
1080 candidate_id: id,
1081 score: 1.,
1082 positions: vec![],
1083 string: completion.clone(),
1084 })
1085 .collect();
1086 Self {
1087 id,
1088 sort_completions,
1089 initial_position: selection.start,
1090 buffer,
1091 completions: Arc::new(RwLock::new(completions)),
1092 match_candidates,
1093 matches,
1094 selected_item: 0,
1095 scroll_handle: UniformListScrollHandle::new(),
1096 selected_completion_documentation_resolve_debounce: Some(Arc::new(Mutex::new(
1097 DebouncedDelay::new(),
1098 ))),
1099 }
1100 }
1101
1102 fn suppress_documentation_resolution(mut self) -> Self {
1103 self.selected_completion_documentation_resolve_debounce
1104 .take();
1105 self
1106 }
1107
1108 fn select_first(
1109 &mut self,
1110 provider: Option<&dyn CompletionProvider>,
1111 cx: &mut ViewContext<Editor>,
1112 ) {
1113 self.selected_item = 0;
1114 self.scroll_handle
1115 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1116 self.attempt_resolve_selected_completion_documentation(provider, cx);
1117 cx.notify();
1118 }
1119
1120 fn select_prev(
1121 &mut self,
1122 provider: Option<&dyn CompletionProvider>,
1123 cx: &mut ViewContext<Editor>,
1124 ) {
1125 if self.selected_item > 0 {
1126 self.selected_item -= 1;
1127 } else {
1128 self.selected_item = self.matches.len() - 1;
1129 }
1130 self.scroll_handle
1131 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1132 self.attempt_resolve_selected_completion_documentation(provider, cx);
1133 cx.notify();
1134 }
1135
1136 fn select_next(
1137 &mut self,
1138 provider: Option<&dyn CompletionProvider>,
1139 cx: &mut ViewContext<Editor>,
1140 ) {
1141 if self.selected_item + 1 < self.matches.len() {
1142 self.selected_item += 1;
1143 } else {
1144 self.selected_item = 0;
1145 }
1146 self.scroll_handle
1147 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1148 self.attempt_resolve_selected_completion_documentation(provider, cx);
1149 cx.notify();
1150 }
1151
1152 fn select_last(
1153 &mut self,
1154 provider: Option<&dyn CompletionProvider>,
1155 cx: &mut ViewContext<Editor>,
1156 ) {
1157 self.selected_item = self.matches.len() - 1;
1158 self.scroll_handle
1159 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1160 self.attempt_resolve_selected_completion_documentation(provider, cx);
1161 cx.notify();
1162 }
1163
1164 fn pre_resolve_completion_documentation(
1165 buffer: Model<Buffer>,
1166 completions: Arc<RwLock<Box<[Completion]>>>,
1167 matches: Arc<[StringMatch]>,
1168 editor: &Editor,
1169 cx: &mut ViewContext<Editor>,
1170 ) -> Task<()> {
1171 let settings = EditorSettings::get_global(cx);
1172 if !settings.show_completion_documentation {
1173 return Task::ready(());
1174 }
1175
1176 let Some(provider) = editor.completion_provider.as_ref() else {
1177 return Task::ready(());
1178 };
1179
1180 let resolve_task = provider.resolve_completions(
1181 buffer,
1182 matches.iter().map(|m| m.candidate_id).collect(),
1183 completions.clone(),
1184 cx,
1185 );
1186
1187 cx.spawn(move |this, mut cx| async move {
1188 if let Some(true) = resolve_task.await.log_err() {
1189 this.update(&mut cx, |_, cx| cx.notify()).ok();
1190 }
1191 })
1192 }
1193
1194 fn attempt_resolve_selected_completion_documentation(
1195 &mut self,
1196 provider: Option<&dyn CompletionProvider>,
1197 cx: &mut ViewContext<Editor>,
1198 ) {
1199 let settings = EditorSettings::get_global(cx);
1200 if !settings.show_completion_documentation {
1201 return;
1202 }
1203
1204 let completion_index = self.matches[self.selected_item].candidate_id;
1205 let Some(provider) = provider else {
1206 return;
1207 };
1208 let Some(documentation_resolve) = self
1209 .selected_completion_documentation_resolve_debounce
1210 .as_ref()
1211 else {
1212 return;
1213 };
1214
1215 let resolve_task = provider.resolve_completions(
1216 self.buffer.clone(),
1217 vec![completion_index],
1218 self.completions.clone(),
1219 cx,
1220 );
1221
1222 let delay_ms =
1223 EditorSettings::get_global(cx).completion_documentation_secondary_query_debounce;
1224 let delay = Duration::from_millis(delay_ms);
1225
1226 documentation_resolve.lock().fire_new(delay, cx, |_, cx| {
1227 cx.spawn(move |this, mut cx| async move {
1228 if let Some(true) = resolve_task.await.log_err() {
1229 this.update(&mut cx, |_, cx| cx.notify()).ok();
1230 }
1231 })
1232 });
1233 }
1234
1235 fn visible(&self) -> bool {
1236 !self.matches.is_empty()
1237 }
1238
1239 fn render(
1240 &self,
1241 style: &EditorStyle,
1242 max_height: Pixels,
1243 workspace: Option<WeakView<Workspace>>,
1244 cx: &mut ViewContext<Editor>,
1245 ) -> AnyElement {
1246 let settings = EditorSettings::get_global(cx);
1247 let show_completion_documentation = settings.show_completion_documentation;
1248
1249 let widest_completion_ix = self
1250 .matches
1251 .iter()
1252 .enumerate()
1253 .max_by_key(|(_, mat)| {
1254 let completions = self.completions.read();
1255 let completion = &completions[mat.candidate_id];
1256 let documentation = &completion.documentation;
1257
1258 let mut len = completion.label.text.chars().count();
1259 if let Some(Documentation::SingleLine(text)) = documentation {
1260 if show_completion_documentation {
1261 len += text.chars().count();
1262 }
1263 }
1264
1265 len
1266 })
1267 .map(|(ix, _)| ix);
1268
1269 let completions = self.completions.clone();
1270 let matches = self.matches.clone();
1271 let selected_item = self.selected_item;
1272 let style = style.clone();
1273
1274 let multiline_docs = if show_completion_documentation {
1275 let mat = &self.matches[selected_item];
1276 let multiline_docs = match &self.completions.read()[mat.candidate_id].documentation {
1277 Some(Documentation::MultiLinePlainText(text)) => {
1278 Some(div().child(SharedString::from(text.clone())))
1279 }
1280 Some(Documentation::MultiLineMarkdown(parsed)) if !parsed.text.is_empty() => {
1281 Some(div().child(render_parsed_markdown(
1282 "completions_markdown",
1283 parsed,
1284 &style,
1285 workspace,
1286 cx,
1287 )))
1288 }
1289 _ => None,
1290 };
1291 multiline_docs.map(|div| {
1292 div.id("multiline_docs")
1293 .max_h(max_height)
1294 .flex_1()
1295 .px_1p5()
1296 .py_1()
1297 .min_w(px(260.))
1298 .max_w(px(640.))
1299 .w(px(500.))
1300 .overflow_y_scroll()
1301 .occlude()
1302 })
1303 } else {
1304 None
1305 };
1306
1307 let list = uniform_list(
1308 cx.view().clone(),
1309 "completions",
1310 matches.len(),
1311 move |_editor, range, cx| {
1312 let start_ix = range.start;
1313 let completions_guard = completions.read();
1314
1315 matches[range]
1316 .iter()
1317 .enumerate()
1318 .map(|(ix, mat)| {
1319 let item_ix = start_ix + ix;
1320 let candidate_id = mat.candidate_id;
1321 let completion = &completions_guard[candidate_id];
1322
1323 let documentation = if show_completion_documentation {
1324 &completion.documentation
1325 } else {
1326 &None
1327 };
1328
1329 let highlights = gpui::combine_highlights(
1330 mat.ranges().map(|range| (range, FontWeight::BOLD.into())),
1331 styled_runs_for_code_label(&completion.label, &style.syntax).map(
1332 |(range, mut highlight)| {
1333 // Ignore font weight for syntax highlighting, as we'll use it
1334 // for fuzzy matches.
1335 highlight.font_weight = None;
1336
1337 if completion.lsp_completion.deprecated.unwrap_or(false) {
1338 highlight.strikethrough = Some(StrikethroughStyle {
1339 thickness: 1.0.into(),
1340 ..Default::default()
1341 });
1342 highlight.color = Some(cx.theme().colors().text_muted);
1343 }
1344
1345 (range, highlight)
1346 },
1347 ),
1348 );
1349 let completion_label = StyledText::new(completion.label.text.clone())
1350 .with_highlights(&style.text, highlights);
1351 let documentation_label =
1352 if let Some(Documentation::SingleLine(text)) = documentation {
1353 if text.trim().is_empty() {
1354 None
1355 } else {
1356 Some(
1357 Label::new(text.clone())
1358 .ml_4()
1359 .size(LabelSize::Small)
1360 .color(Color::Muted),
1361 )
1362 }
1363 } else {
1364 None
1365 };
1366
1367 let color_swatch = completion
1368 .color()
1369 .map(|color| div().size_4().bg(color).rounded_sm());
1370
1371 div().min_w(px(220.)).max_w(px(540.)).child(
1372 ListItem::new(mat.candidate_id)
1373 .inset(true)
1374 .selected(item_ix == selected_item)
1375 .on_click(cx.listener(move |editor, _event, cx| {
1376 cx.stop_propagation();
1377 if let Some(task) = editor.confirm_completion(
1378 &ConfirmCompletion {
1379 item_ix: Some(item_ix),
1380 },
1381 cx,
1382 ) {
1383 task.detach_and_log_err(cx)
1384 }
1385 }))
1386 .start_slot::<Div>(color_swatch)
1387 .child(h_flex().overflow_hidden().child(completion_label))
1388 .end_slot::<Label>(documentation_label),
1389 )
1390 })
1391 .collect()
1392 },
1393 )
1394 .occlude()
1395 .max_h(max_height)
1396 .track_scroll(self.scroll_handle.clone())
1397 .with_width_from_item(widest_completion_ix)
1398 .with_sizing_behavior(ListSizingBehavior::Infer);
1399
1400 Popover::new()
1401 .child(list)
1402 .when_some(multiline_docs, |popover, multiline_docs| {
1403 popover.aside(multiline_docs)
1404 })
1405 .into_any_element()
1406 }
1407
1408 pub async fn filter(&mut self, query: Option<&str>, executor: BackgroundExecutor) {
1409 let mut matches = if let Some(query) = query {
1410 fuzzy::match_strings(
1411 &self.match_candidates,
1412 query,
1413 query.chars().any(|c| c.is_uppercase()),
1414 100,
1415 &Default::default(),
1416 executor,
1417 )
1418 .await
1419 } else {
1420 self.match_candidates
1421 .iter()
1422 .enumerate()
1423 .map(|(candidate_id, candidate)| StringMatch {
1424 candidate_id,
1425 score: Default::default(),
1426 positions: Default::default(),
1427 string: candidate.string.clone(),
1428 })
1429 .collect()
1430 };
1431
1432 // Remove all candidates where the query's start does not match the start of any word in the candidate
1433 if let Some(query) = query {
1434 if let Some(query_start) = query.chars().next() {
1435 matches.retain(|string_match| {
1436 split_words(&string_match.string).any(|word| {
1437 // Check that the first codepoint of the word as lowercase matches the first
1438 // codepoint of the query as lowercase
1439 word.chars()
1440 .flat_map(|codepoint| codepoint.to_lowercase())
1441 .zip(query_start.to_lowercase())
1442 .all(|(word_cp, query_cp)| word_cp == query_cp)
1443 })
1444 });
1445 }
1446 }
1447
1448 let completions = self.completions.read();
1449 if self.sort_completions {
1450 matches.sort_unstable_by_key(|mat| {
1451 // We do want to strike a balance here between what the language server tells us
1452 // to sort by (the sort_text) and what are "obvious" good matches (i.e. when you type
1453 // `Creat` and there is a local variable called `CreateComponent`).
1454 // So what we do is: we bucket all matches into two buckets
1455 // - Strong matches
1456 // - Weak matches
1457 // Strong matches are the ones with a high fuzzy-matcher score (the "obvious" matches)
1458 // and the Weak matches are the rest.
1459 //
1460 // For the strong matches, we sort by our fuzzy-finder score first and for the weak
1461 // matches, we prefer language-server sort_text first.
1462 //
1463 // The thinking behind that: we want to show strong matches first in order of relevance(fuzzy score).
1464 // Rest of the matches(weak) can be sorted as language-server expects.
1465
1466 #[derive(PartialEq, Eq, PartialOrd, Ord)]
1467 enum MatchScore<'a> {
1468 Strong {
1469 score: Reverse<OrderedFloat<f64>>,
1470 sort_text: Option<&'a str>,
1471 sort_key: (usize, &'a str),
1472 },
1473 Weak {
1474 sort_text: Option<&'a str>,
1475 score: Reverse<OrderedFloat<f64>>,
1476 sort_key: (usize, &'a str),
1477 },
1478 }
1479
1480 let completion = &completions[mat.candidate_id];
1481 let sort_key = completion.sort_key();
1482 let sort_text = completion.lsp_completion.sort_text.as_deref();
1483 let score = Reverse(OrderedFloat(mat.score));
1484
1485 if mat.score >= 0.2 {
1486 MatchScore::Strong {
1487 score,
1488 sort_text,
1489 sort_key,
1490 }
1491 } else {
1492 MatchScore::Weak {
1493 sort_text,
1494 score,
1495 sort_key,
1496 }
1497 }
1498 });
1499 }
1500
1501 for mat in &mut matches {
1502 let completion = &completions[mat.candidate_id];
1503 mat.string.clone_from(&completion.label.text);
1504 for position in &mut mat.positions {
1505 *position += completion.label.filter_range.start;
1506 }
1507 }
1508 drop(completions);
1509
1510 self.matches = matches.into();
1511 self.selected_item = 0;
1512 }
1513}
1514
1515#[derive(Clone)]
1516struct AvailableCodeAction {
1517 excerpt_id: ExcerptId,
1518 action: CodeAction,
1519 provider: Arc<dyn CodeActionProvider>,
1520}
1521
1522#[derive(Clone)]
1523struct CodeActionContents {
1524 tasks: Option<Arc<ResolvedTasks>>,
1525 actions: Option<Arc<[AvailableCodeAction]>>,
1526}
1527
1528impl CodeActionContents {
1529 fn len(&self) -> usize {
1530 match (&self.tasks, &self.actions) {
1531 (Some(tasks), Some(actions)) => actions.len() + tasks.templates.len(),
1532 (Some(tasks), None) => tasks.templates.len(),
1533 (None, Some(actions)) => actions.len(),
1534 (None, None) => 0,
1535 }
1536 }
1537
1538 fn is_empty(&self) -> bool {
1539 match (&self.tasks, &self.actions) {
1540 (Some(tasks), Some(actions)) => actions.is_empty() && tasks.templates.is_empty(),
1541 (Some(tasks), None) => tasks.templates.is_empty(),
1542 (None, Some(actions)) => actions.is_empty(),
1543 (None, None) => true,
1544 }
1545 }
1546
1547 fn iter(&self) -> impl Iterator<Item = CodeActionsItem> + '_ {
1548 self.tasks
1549 .iter()
1550 .flat_map(|tasks| {
1551 tasks
1552 .templates
1553 .iter()
1554 .map(|(kind, task)| CodeActionsItem::Task(kind.clone(), task.clone()))
1555 })
1556 .chain(self.actions.iter().flat_map(|actions| {
1557 actions.iter().map(|available| CodeActionsItem::CodeAction {
1558 excerpt_id: available.excerpt_id,
1559 action: available.action.clone(),
1560 provider: available.provider.clone(),
1561 })
1562 }))
1563 }
1564 fn get(&self, index: usize) -> Option<CodeActionsItem> {
1565 match (&self.tasks, &self.actions) {
1566 (Some(tasks), Some(actions)) => {
1567 if index < tasks.templates.len() {
1568 tasks
1569 .templates
1570 .get(index)
1571 .cloned()
1572 .map(|(kind, task)| CodeActionsItem::Task(kind, task))
1573 } else {
1574 actions.get(index - tasks.templates.len()).map(|available| {
1575 CodeActionsItem::CodeAction {
1576 excerpt_id: available.excerpt_id,
1577 action: available.action.clone(),
1578 provider: available.provider.clone(),
1579 }
1580 })
1581 }
1582 }
1583 (Some(tasks), None) => tasks
1584 .templates
1585 .get(index)
1586 .cloned()
1587 .map(|(kind, task)| CodeActionsItem::Task(kind, task)),
1588 (None, Some(actions)) => {
1589 actions
1590 .get(index)
1591 .map(|available| CodeActionsItem::CodeAction {
1592 excerpt_id: available.excerpt_id,
1593 action: available.action.clone(),
1594 provider: available.provider.clone(),
1595 })
1596 }
1597 (None, None) => None,
1598 }
1599 }
1600}
1601
1602#[allow(clippy::large_enum_variant)]
1603#[derive(Clone)]
1604enum CodeActionsItem {
1605 Task(TaskSourceKind, ResolvedTask),
1606 CodeAction {
1607 excerpt_id: ExcerptId,
1608 action: CodeAction,
1609 provider: Arc<dyn CodeActionProvider>,
1610 },
1611}
1612
1613impl CodeActionsItem {
1614 fn as_task(&self) -> Option<&ResolvedTask> {
1615 let Self::Task(_, task) = self else {
1616 return None;
1617 };
1618 Some(task)
1619 }
1620 fn as_code_action(&self) -> Option<&CodeAction> {
1621 let Self::CodeAction { action, .. } = self else {
1622 return None;
1623 };
1624 Some(action)
1625 }
1626 fn label(&self) -> String {
1627 match self {
1628 Self::CodeAction { action, .. } => action.lsp_action.title.clone(),
1629 Self::Task(_, task) => task.resolved_label.clone(),
1630 }
1631 }
1632}
1633
1634struct CodeActionsMenu {
1635 actions: CodeActionContents,
1636 buffer: Model<Buffer>,
1637 selected_item: usize,
1638 scroll_handle: UniformListScrollHandle,
1639 deployed_from_indicator: Option<DisplayRow>,
1640}
1641
1642impl CodeActionsMenu {
1643 fn select_first(&mut self, cx: &mut ViewContext<Editor>) {
1644 self.selected_item = 0;
1645 self.scroll_handle
1646 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1647 cx.notify()
1648 }
1649
1650 fn select_prev(&mut self, cx: &mut ViewContext<Editor>) {
1651 if self.selected_item > 0 {
1652 self.selected_item -= 1;
1653 } else {
1654 self.selected_item = self.actions.len() - 1;
1655 }
1656 self.scroll_handle
1657 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1658 cx.notify();
1659 }
1660
1661 fn select_next(&mut self, cx: &mut ViewContext<Editor>) {
1662 if self.selected_item + 1 < self.actions.len() {
1663 self.selected_item += 1;
1664 } else {
1665 self.selected_item = 0;
1666 }
1667 self.scroll_handle
1668 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1669 cx.notify();
1670 }
1671
1672 fn select_last(&mut self, cx: &mut ViewContext<Editor>) {
1673 self.selected_item = self.actions.len() - 1;
1674 self.scroll_handle
1675 .scroll_to_item(self.selected_item, ScrollStrategy::Top);
1676 cx.notify()
1677 }
1678
1679 fn visible(&self) -> bool {
1680 !self.actions.is_empty()
1681 }
1682
1683 fn render(
1684 &self,
1685 cursor_position: DisplayPoint,
1686 _style: &EditorStyle,
1687 max_height: Pixels,
1688 cx: &mut ViewContext<Editor>,
1689 ) -> (ContextMenuOrigin, AnyElement) {
1690 let actions = self.actions.clone();
1691 let selected_item = self.selected_item;
1692 let element = uniform_list(
1693 cx.view().clone(),
1694 "code_actions_menu",
1695 self.actions.len(),
1696 move |_this, range, cx| {
1697 actions
1698 .iter()
1699 .skip(range.start)
1700 .take(range.end - range.start)
1701 .enumerate()
1702 .map(|(ix, action)| {
1703 let item_ix = range.start + ix;
1704 let selected = selected_item == item_ix;
1705 let colors = cx.theme().colors();
1706 div()
1707 .px_1()
1708 .rounded_md()
1709 .text_color(colors.text)
1710 .when(selected, |style| {
1711 style
1712 .bg(colors.element_active)
1713 .text_color(colors.text_accent)
1714 })
1715 .hover(|style| {
1716 style
1717 .bg(colors.element_hover)
1718 .text_color(colors.text_accent)
1719 })
1720 .whitespace_nowrap()
1721 .when_some(action.as_code_action(), |this, action| {
1722 this.on_mouse_down(
1723 MouseButton::Left,
1724 cx.listener(move |editor, _, cx| {
1725 cx.stop_propagation();
1726 if let Some(task) = editor.confirm_code_action(
1727 &ConfirmCodeAction {
1728 item_ix: Some(item_ix),
1729 },
1730 cx,
1731 ) {
1732 task.detach_and_log_err(cx)
1733 }
1734 }),
1735 )
1736 // TASK: It would be good to make lsp_action.title a SharedString to avoid allocating here.
1737 .child(SharedString::from(action.lsp_action.title.clone()))
1738 })
1739 .when_some(action.as_task(), |this, task| {
1740 this.on_mouse_down(
1741 MouseButton::Left,
1742 cx.listener(move |editor, _, cx| {
1743 cx.stop_propagation();
1744 if let Some(task) = editor.confirm_code_action(
1745 &ConfirmCodeAction {
1746 item_ix: Some(item_ix),
1747 },
1748 cx,
1749 ) {
1750 task.detach_and_log_err(cx)
1751 }
1752 }),
1753 )
1754 .child(SharedString::from(task.resolved_label.clone()))
1755 })
1756 })
1757 .collect()
1758 },
1759 )
1760 .elevation_1(cx)
1761 .p_1()
1762 .max_h(max_height)
1763 .occlude()
1764 .track_scroll(self.scroll_handle.clone())
1765 .with_width_from_item(
1766 self.actions
1767 .iter()
1768 .enumerate()
1769 .max_by_key(|(_, action)| match action {
1770 CodeActionsItem::Task(_, task) => task.resolved_label.chars().count(),
1771 CodeActionsItem::CodeAction { action, .. } => {
1772 action.lsp_action.title.chars().count()
1773 }
1774 })
1775 .map(|(ix, _)| ix),
1776 )
1777 .with_sizing_behavior(ListSizingBehavior::Infer)
1778 .into_any_element();
1779
1780 let cursor_position = if let Some(row) = self.deployed_from_indicator {
1781 ContextMenuOrigin::GutterIndicator(row)
1782 } else {
1783 ContextMenuOrigin::EditorPoint(cursor_position)
1784 };
1785
1786 (cursor_position, element)
1787 }
1788}
1789
1790#[derive(Debug)]
1791struct ActiveDiagnosticGroup {
1792 primary_range: Range<Anchor>,
1793 primary_message: String,
1794 group_id: usize,
1795 blocks: HashMap<CustomBlockId, Diagnostic>,
1796 is_valid: bool,
1797}
1798
1799#[derive(Serialize, Deserialize, Clone, Debug)]
1800pub struct ClipboardSelection {
1801 pub len: usize,
1802 pub is_entire_line: bool,
1803 pub first_line_indent: u32,
1804}
1805
1806#[derive(Debug)]
1807pub(crate) struct NavigationData {
1808 cursor_anchor: Anchor,
1809 cursor_position: Point,
1810 scroll_anchor: ScrollAnchor,
1811 scroll_top_row: u32,
1812}
1813
1814#[derive(Debug, Clone, Copy, PartialEq, Eq)]
1815pub enum GotoDefinitionKind {
1816 Symbol,
1817 Declaration,
1818 Type,
1819 Implementation,
1820}
1821
1822#[derive(Debug, Clone)]
1823enum InlayHintRefreshReason {
1824 Toggle(bool),
1825 SettingsChange(InlayHintSettings),
1826 NewLinesShown,
1827 BufferEdited(HashSet<Arc<Language>>),
1828 RefreshRequested,
1829 ExcerptsRemoved(Vec<ExcerptId>),
1830}
1831
1832impl InlayHintRefreshReason {
1833 fn description(&self) -> &'static str {
1834 match self {
1835 Self::Toggle(_) => "toggle",
1836 Self::SettingsChange(_) => "settings change",
1837 Self::NewLinesShown => "new lines shown",
1838 Self::BufferEdited(_) => "buffer edited",
1839 Self::RefreshRequested => "refresh requested",
1840 Self::ExcerptsRemoved(_) => "excerpts removed",
1841 }
1842 }
1843}
1844
1845pub(crate) struct FocusedBlock {
1846 id: BlockId,
1847 focus_handle: WeakFocusHandle,
1848}
1849
1850#[derive(Clone)]
1851struct JumpData {
1852 excerpt_id: ExcerptId,
1853 position: Point,
1854 anchor: text::Anchor,
1855 path: Option<project::ProjectPath>,
1856 line_offset_from_top: u32,
1857}
1858
1859impl Editor {
1860 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1861 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1862 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1863 Self::new(
1864 EditorMode::SingleLine { auto_width: false },
1865 buffer,
1866 None,
1867 false,
1868 cx,
1869 )
1870 }
1871
1872 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1873 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1874 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1875 Self::new(EditorMode::Full, buffer, None, false, cx)
1876 }
1877
1878 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1879 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1880 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1881 Self::new(
1882 EditorMode::SingleLine { auto_width: true },
1883 buffer,
1884 None,
1885 false,
1886 cx,
1887 )
1888 }
1889
1890 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1891 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1892 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1893 Self::new(
1894 EditorMode::AutoHeight { max_lines },
1895 buffer,
1896 None,
1897 false,
1898 cx,
1899 )
1900 }
1901
1902 pub fn for_buffer(
1903 buffer: Model<Buffer>,
1904 project: Option<Model<Project>>,
1905 cx: &mut ViewContext<Self>,
1906 ) -> Self {
1907 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1908 Self::new(EditorMode::Full, buffer, project, false, cx)
1909 }
1910
1911 pub fn for_multibuffer(
1912 buffer: Model<MultiBuffer>,
1913 project: Option<Model<Project>>,
1914 show_excerpt_controls: bool,
1915 cx: &mut ViewContext<Self>,
1916 ) -> Self {
1917 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1918 }
1919
1920 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1921 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1922 let mut clone = Self::new(
1923 self.mode,
1924 self.buffer.clone(),
1925 self.project.clone(),
1926 show_excerpt_controls,
1927 cx,
1928 );
1929 self.display_map.update(cx, |display_map, cx| {
1930 let snapshot = display_map.snapshot(cx);
1931 clone.display_map.update(cx, |display_map, cx| {
1932 display_map.set_state(&snapshot, cx);
1933 });
1934 });
1935 clone.selections.clone_state(&self.selections);
1936 clone.scroll_manager.clone_state(&self.scroll_manager);
1937 clone.searchable = self.searchable;
1938 clone
1939 }
1940
1941 pub fn new(
1942 mode: EditorMode,
1943 buffer: Model<MultiBuffer>,
1944 project: Option<Model<Project>>,
1945 show_excerpt_controls: bool,
1946 cx: &mut ViewContext<Self>,
1947 ) -> Self {
1948 let style = cx.text_style();
1949 let font_size = style.font_size.to_pixels(cx.rem_size());
1950 let editor = cx.view().downgrade();
1951 let fold_placeholder = FoldPlaceholder {
1952 constrain_width: true,
1953 render: Arc::new(move |fold_id, fold_range, cx| {
1954 let editor = editor.clone();
1955 div()
1956 .id(fold_id)
1957 .bg(cx.theme().colors().ghost_element_background)
1958 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1959 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1960 .rounded_sm()
1961 .size_full()
1962 .cursor_pointer()
1963 .child("⋯")
1964 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1965 .on_click(move |_, cx| {
1966 editor
1967 .update(cx, |editor, cx| {
1968 editor.unfold_ranges(
1969 &[fold_range.start..fold_range.end],
1970 true,
1971 false,
1972 cx,
1973 );
1974 cx.stop_propagation();
1975 })
1976 .ok();
1977 })
1978 .into_any()
1979 }),
1980 merge_adjacent: true,
1981 ..Default::default()
1982 };
1983 let display_map = cx.new_model(|cx| {
1984 DisplayMap::new(
1985 buffer.clone(),
1986 style.font(),
1987 font_size,
1988 None,
1989 show_excerpt_controls,
1990 FILE_HEADER_HEIGHT,
1991 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1992 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1993 fold_placeholder,
1994 cx,
1995 )
1996 });
1997
1998 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1999
2000 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
2001
2002 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
2003 .then(|| language_settings::SoftWrap::None);
2004
2005 let mut project_subscriptions = Vec::new();
2006 if mode == EditorMode::Full {
2007 if let Some(project) = project.as_ref() {
2008 if buffer.read(cx).is_singleton() {
2009 project_subscriptions.push(cx.observe(project, |_, _, cx| {
2010 cx.emit(EditorEvent::TitleChanged);
2011 }));
2012 }
2013 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
2014 if let project::Event::RefreshInlayHints = event {
2015 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
2016 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
2017 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
2018 let focus_handle = editor.focus_handle(cx);
2019 if focus_handle.is_focused(cx) {
2020 let snapshot = buffer.read(cx).snapshot();
2021 for (range, snippet) in snippet_edits {
2022 let editor_range =
2023 language::range_from_lsp(*range).to_offset(&snapshot);
2024 editor
2025 .insert_snippet(&[editor_range], snippet.clone(), cx)
2026 .ok();
2027 }
2028 }
2029 }
2030 }
2031 }));
2032 if let Some(task_inventory) = project
2033 .read(cx)
2034 .task_store()
2035 .read(cx)
2036 .task_inventory()
2037 .cloned()
2038 {
2039 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
2040 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
2041 }));
2042 }
2043 }
2044 }
2045
2046 let inlay_hint_settings = inlay_hint_settings(
2047 selections.newest_anchor().head(),
2048 &buffer.read(cx).snapshot(cx),
2049 cx,
2050 );
2051 let focus_handle = cx.focus_handle();
2052 cx.on_focus(&focus_handle, Self::handle_focus).detach();
2053 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
2054 .detach();
2055 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
2056 .detach();
2057 cx.on_blur(&focus_handle, Self::handle_blur).detach();
2058
2059 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
2060 Some(false)
2061 } else {
2062 None
2063 };
2064
2065 let mut code_action_providers = Vec::new();
2066 if let Some(project) = project.clone() {
2067 code_action_providers.push(Arc::new(project) as Arc<_>);
2068 }
2069
2070 let mut this = Self {
2071 focus_handle,
2072 show_cursor_when_unfocused: false,
2073 last_focused_descendant: None,
2074 buffer: buffer.clone(),
2075 display_map: display_map.clone(),
2076 selections,
2077 scroll_manager: ScrollManager::new(cx),
2078 columnar_selection_tail: None,
2079 add_selections_state: None,
2080 select_next_state: None,
2081 select_prev_state: None,
2082 selection_history: Default::default(),
2083 autoclose_regions: Default::default(),
2084 snippet_stack: Default::default(),
2085 select_larger_syntax_node_stack: Vec::new(),
2086 ime_transaction: Default::default(),
2087 active_diagnostics: None,
2088 soft_wrap_mode_override,
2089 completion_provider: project.clone().map(|project| Box::new(project) as _),
2090 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
2091 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
2092 project,
2093 blink_manager: blink_manager.clone(),
2094 show_local_selections: true,
2095 mode,
2096 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
2097 show_gutter: mode == EditorMode::Full,
2098 show_line_numbers: None,
2099 use_relative_line_numbers: None,
2100 show_git_diff_gutter: None,
2101 show_code_actions: None,
2102 show_runnables: None,
2103 show_wrap_guides: None,
2104 show_indent_guides,
2105 placeholder_text: None,
2106 highlight_order: 0,
2107 highlighted_rows: HashMap::default(),
2108 background_highlights: Default::default(),
2109 gutter_highlights: TreeMap::default(),
2110 scrollbar_marker_state: ScrollbarMarkerState::default(),
2111 active_indent_guides_state: ActiveIndentGuidesState::default(),
2112 nav_history: None,
2113 context_menu: RwLock::new(None),
2114 mouse_context_menu: None,
2115 hunk_controls_menu_handle: PopoverMenuHandle::default(),
2116 completion_tasks: Default::default(),
2117 signature_help_state: SignatureHelpState::default(),
2118 auto_signature_help: None,
2119 find_all_references_task_sources: Vec::new(),
2120 next_completion_id: 0,
2121 completion_documentation_pre_resolve_debounce: DebouncedDelay::new(),
2122 next_inlay_id: 0,
2123 code_action_providers,
2124 available_code_actions: Default::default(),
2125 code_actions_task: Default::default(),
2126 document_highlights_task: Default::default(),
2127 linked_editing_range_task: Default::default(),
2128 pending_rename: Default::default(),
2129 searchable: true,
2130 cursor_shape: EditorSettings::get_global(cx)
2131 .cursor_shape
2132 .unwrap_or_default(),
2133 current_line_highlight: None,
2134 autoindent_mode: Some(AutoindentMode::EachLine),
2135 collapse_matches: false,
2136 workspace: None,
2137 input_enabled: true,
2138 use_modal_editing: mode == EditorMode::Full,
2139 read_only: false,
2140 use_autoclose: true,
2141 use_auto_surround: true,
2142 auto_replace_emoji_shortcode: false,
2143 leader_peer_id: None,
2144 remote_id: None,
2145 hover_state: Default::default(),
2146 hovered_link_state: Default::default(),
2147 inline_completion_provider: None,
2148 active_inline_completion: None,
2149 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
2150 expanded_hunks: ExpandedHunks::default(),
2151 gutter_hovered: false,
2152 pixel_position_of_newest_cursor: None,
2153 last_bounds: None,
2154 expect_bounds_change: None,
2155 gutter_dimensions: GutterDimensions::default(),
2156 style: None,
2157 show_cursor_names: false,
2158 hovered_cursors: Default::default(),
2159 next_editor_action_id: EditorActionId::default(),
2160 editor_actions: Rc::default(),
2161 show_inline_completions_override: None,
2162 enable_inline_completions: true,
2163 custom_context_menu: None,
2164 show_git_blame_gutter: false,
2165 show_git_blame_inline: false,
2166 show_selection_menu: None,
2167 show_git_blame_inline_delay_task: None,
2168 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
2169 serialize_dirty_buffers: ProjectSettings::get_global(cx)
2170 .session
2171 .restore_unsaved_buffers,
2172 blame: None,
2173 blame_subscription: None,
2174 tasks: Default::default(),
2175 _subscriptions: vec![
2176 cx.observe(&buffer, Self::on_buffer_changed),
2177 cx.subscribe(&buffer, Self::on_buffer_event),
2178 cx.observe(&display_map, Self::on_display_map_changed),
2179 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
2180 cx.observe_global::<SettingsStore>(Self::settings_changed),
2181 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
2182 cx.observe_window_activation(|editor, cx| {
2183 let active = cx.is_window_active();
2184 editor.blink_manager.update(cx, |blink_manager, cx| {
2185 if active {
2186 blink_manager.enable(cx);
2187 } else {
2188 blink_manager.disable(cx);
2189 }
2190 });
2191 }),
2192 ],
2193 tasks_update_task: None,
2194 linked_edit_ranges: Default::default(),
2195 previous_search_ranges: None,
2196 breadcrumb_header: None,
2197 focused_block: None,
2198 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
2199 addons: HashMap::default(),
2200 _scroll_cursor_center_top_bottom_task: Task::ready(()),
2201 text_style_refinement: None,
2202 };
2203 this.tasks_update_task = Some(this.refresh_runnables(cx));
2204 this._subscriptions.extend(project_subscriptions);
2205
2206 this.end_selection(cx);
2207 this.scroll_manager.show_scrollbar(cx);
2208
2209 if mode == EditorMode::Full {
2210 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
2211 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
2212
2213 if this.git_blame_inline_enabled {
2214 this.git_blame_inline_enabled = true;
2215 this.start_git_blame_inline(false, cx);
2216 }
2217 }
2218
2219 this.report_editor_event("open", None, cx);
2220 this
2221 }
2222
2223 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
2224 self.mouse_context_menu
2225 .as_ref()
2226 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
2227 }
2228
2229 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
2230 let mut key_context = KeyContext::new_with_defaults();
2231 key_context.add("Editor");
2232 let mode = match self.mode {
2233 EditorMode::SingleLine { .. } => "single_line",
2234 EditorMode::AutoHeight { .. } => "auto_height",
2235 EditorMode::Full => "full",
2236 };
2237
2238 if EditorSettings::jupyter_enabled(cx) {
2239 key_context.add("jupyter");
2240 }
2241
2242 key_context.set("mode", mode);
2243 if self.pending_rename.is_some() {
2244 key_context.add("renaming");
2245 }
2246 if self.context_menu_visible() {
2247 match self.context_menu.read().as_ref() {
2248 Some(ContextMenu::Completions(_)) => {
2249 key_context.add("menu");
2250 key_context.add("showing_completions")
2251 }
2252 Some(ContextMenu::CodeActions(_)) => {
2253 key_context.add("menu");
2254 key_context.add("showing_code_actions")
2255 }
2256 None => {}
2257 }
2258 }
2259
2260 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
2261 if !self.focus_handle(cx).contains_focused(cx)
2262 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
2263 {
2264 for addon in self.addons.values() {
2265 addon.extend_key_context(&mut key_context, cx)
2266 }
2267 }
2268
2269 if let Some(extension) = self
2270 .buffer
2271 .read(cx)
2272 .as_singleton()
2273 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
2274 {
2275 key_context.set("extension", extension.to_string());
2276 }
2277
2278 if self.has_active_inline_completion(cx) {
2279 key_context.add("copilot_suggestion");
2280 key_context.add("inline_completion");
2281 }
2282
2283 key_context
2284 }
2285
2286 pub fn new_file(
2287 workspace: &mut Workspace,
2288 _: &workspace::NewFile,
2289 cx: &mut ViewContext<Workspace>,
2290 ) {
2291 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
2292 "Failed to create buffer",
2293 cx,
2294 |e, _| match e.error_code() {
2295 ErrorCode::RemoteUpgradeRequired => Some(format!(
2296 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2297 e.error_tag("required").unwrap_or("the latest version")
2298 )),
2299 _ => None,
2300 },
2301 );
2302 }
2303
2304 pub fn new_in_workspace(
2305 workspace: &mut Workspace,
2306 cx: &mut ViewContext<Workspace>,
2307 ) -> Task<Result<View<Editor>>> {
2308 let project = workspace.project().clone();
2309 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2310
2311 cx.spawn(|workspace, mut cx| async move {
2312 let buffer = create.await?;
2313 workspace.update(&mut cx, |workspace, cx| {
2314 let editor =
2315 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
2316 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
2317 editor
2318 })
2319 })
2320 }
2321
2322 fn new_file_vertical(
2323 workspace: &mut Workspace,
2324 _: &workspace::NewFileSplitVertical,
2325 cx: &mut ViewContext<Workspace>,
2326 ) {
2327 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
2328 }
2329
2330 fn new_file_horizontal(
2331 workspace: &mut Workspace,
2332 _: &workspace::NewFileSplitHorizontal,
2333 cx: &mut ViewContext<Workspace>,
2334 ) {
2335 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
2336 }
2337
2338 fn new_file_in_direction(
2339 workspace: &mut Workspace,
2340 direction: SplitDirection,
2341 cx: &mut ViewContext<Workspace>,
2342 ) {
2343 let project = workspace.project().clone();
2344 let create = project.update(cx, |project, cx| project.create_buffer(cx));
2345
2346 cx.spawn(|workspace, mut cx| async move {
2347 let buffer = create.await?;
2348 workspace.update(&mut cx, move |workspace, cx| {
2349 workspace.split_item(
2350 direction,
2351 Box::new(
2352 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
2353 ),
2354 cx,
2355 )
2356 })?;
2357 anyhow::Ok(())
2358 })
2359 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
2360 ErrorCode::RemoteUpgradeRequired => Some(format!(
2361 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
2362 e.error_tag("required").unwrap_or("the latest version")
2363 )),
2364 _ => None,
2365 });
2366 }
2367
2368 pub fn leader_peer_id(&self) -> Option<PeerId> {
2369 self.leader_peer_id
2370 }
2371
2372 pub fn buffer(&self) -> &Model<MultiBuffer> {
2373 &self.buffer
2374 }
2375
2376 pub fn workspace(&self) -> Option<View<Workspace>> {
2377 self.workspace.as_ref()?.0.upgrade()
2378 }
2379
2380 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
2381 self.buffer().read(cx).title(cx)
2382 }
2383
2384 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
2385 let git_blame_gutter_max_author_length = self
2386 .render_git_blame_gutter(cx)
2387 .then(|| {
2388 if let Some(blame) = self.blame.as_ref() {
2389 let max_author_length =
2390 blame.update(cx, |blame, cx| blame.max_author_length(cx));
2391 Some(max_author_length)
2392 } else {
2393 None
2394 }
2395 })
2396 .flatten();
2397
2398 EditorSnapshot {
2399 mode: self.mode,
2400 show_gutter: self.show_gutter,
2401 show_line_numbers: self.show_line_numbers,
2402 show_git_diff_gutter: self.show_git_diff_gutter,
2403 show_code_actions: self.show_code_actions,
2404 show_runnables: self.show_runnables,
2405 git_blame_gutter_max_author_length,
2406 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
2407 scroll_anchor: self.scroll_manager.anchor(),
2408 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
2409 placeholder_text: self.placeholder_text.clone(),
2410 is_focused: self.focus_handle.is_focused(cx),
2411 current_line_highlight: self
2412 .current_line_highlight
2413 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
2414 gutter_hovered: self.gutter_hovered,
2415 }
2416 }
2417
2418 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
2419 self.buffer.read(cx).language_at(point, cx)
2420 }
2421
2422 pub fn file_at<T: ToOffset>(
2423 &self,
2424 point: T,
2425 cx: &AppContext,
2426 ) -> Option<Arc<dyn language::File>> {
2427 self.buffer.read(cx).read(cx).file_at(point).cloned()
2428 }
2429
2430 pub fn active_excerpt(
2431 &self,
2432 cx: &AppContext,
2433 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
2434 self.buffer
2435 .read(cx)
2436 .excerpt_containing(self.selections.newest_anchor().head(), cx)
2437 }
2438
2439 pub fn mode(&self) -> EditorMode {
2440 self.mode
2441 }
2442
2443 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
2444 self.collaboration_hub.as_deref()
2445 }
2446
2447 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
2448 self.collaboration_hub = Some(hub);
2449 }
2450
2451 pub fn set_custom_context_menu(
2452 &mut self,
2453 f: impl 'static
2454 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
2455 ) {
2456 self.custom_context_menu = Some(Box::new(f))
2457 }
2458
2459 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
2460 self.completion_provider = provider;
2461 }
2462
2463 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
2464 self.semantics_provider.clone()
2465 }
2466
2467 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
2468 self.semantics_provider = provider;
2469 }
2470
2471 pub fn set_inline_completion_provider<T>(
2472 &mut self,
2473 provider: Option<Model<T>>,
2474 cx: &mut ViewContext<Self>,
2475 ) where
2476 T: InlineCompletionProvider,
2477 {
2478 self.inline_completion_provider =
2479 provider.map(|provider| RegisteredInlineCompletionProvider {
2480 _subscription: cx.observe(&provider, |this, _, cx| {
2481 if this.focus_handle.is_focused(cx) {
2482 this.update_visible_inline_completion(cx);
2483 }
2484 }),
2485 provider: Arc::new(provider),
2486 });
2487 self.refresh_inline_completion(false, false, cx);
2488 }
2489
2490 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
2491 self.placeholder_text.as_deref()
2492 }
2493
2494 pub fn set_placeholder_text(
2495 &mut self,
2496 placeholder_text: impl Into<Arc<str>>,
2497 cx: &mut ViewContext<Self>,
2498 ) {
2499 let placeholder_text = Some(placeholder_text.into());
2500 if self.placeholder_text != placeholder_text {
2501 self.placeholder_text = placeholder_text;
2502 cx.notify();
2503 }
2504 }
2505
2506 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
2507 self.cursor_shape = cursor_shape;
2508
2509 // Disrupt blink for immediate user feedback that the cursor shape has changed
2510 self.blink_manager.update(cx, BlinkManager::show_cursor);
2511
2512 cx.notify();
2513 }
2514
2515 pub fn set_current_line_highlight(
2516 &mut self,
2517 current_line_highlight: Option<CurrentLineHighlight>,
2518 ) {
2519 self.current_line_highlight = current_line_highlight;
2520 }
2521
2522 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
2523 self.collapse_matches = collapse_matches;
2524 }
2525
2526 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
2527 if self.collapse_matches {
2528 return range.start..range.start;
2529 }
2530 range.clone()
2531 }
2532
2533 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
2534 if self.display_map.read(cx).clip_at_line_ends != clip {
2535 self.display_map
2536 .update(cx, |map, _| map.clip_at_line_ends = clip);
2537 }
2538 }
2539
2540 pub fn set_input_enabled(&mut self, input_enabled: bool) {
2541 self.input_enabled = input_enabled;
2542 }
2543
2544 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
2545 self.enable_inline_completions = enabled;
2546 }
2547
2548 pub fn set_autoindent(&mut self, autoindent: bool) {
2549 if autoindent {
2550 self.autoindent_mode = Some(AutoindentMode::EachLine);
2551 } else {
2552 self.autoindent_mode = None;
2553 }
2554 }
2555
2556 pub fn read_only(&self, cx: &AppContext) -> bool {
2557 self.read_only || self.buffer.read(cx).read_only()
2558 }
2559
2560 pub fn set_read_only(&mut self, read_only: bool) {
2561 self.read_only = read_only;
2562 }
2563
2564 pub fn set_use_autoclose(&mut self, autoclose: bool) {
2565 self.use_autoclose = autoclose;
2566 }
2567
2568 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
2569 self.use_auto_surround = auto_surround;
2570 }
2571
2572 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
2573 self.auto_replace_emoji_shortcode = auto_replace;
2574 }
2575
2576 pub fn toggle_inline_completions(
2577 &mut self,
2578 _: &ToggleInlineCompletions,
2579 cx: &mut ViewContext<Self>,
2580 ) {
2581 if self.show_inline_completions_override.is_some() {
2582 self.set_show_inline_completions(None, cx);
2583 } else {
2584 let cursor = self.selections.newest_anchor().head();
2585 if let Some((buffer, cursor_buffer_position)) =
2586 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
2587 {
2588 let show_inline_completions =
2589 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
2590 self.set_show_inline_completions(Some(show_inline_completions), cx);
2591 }
2592 }
2593 }
2594
2595 pub fn set_show_inline_completions(
2596 &mut self,
2597 show_inline_completions: Option<bool>,
2598 cx: &mut ViewContext<Self>,
2599 ) {
2600 self.show_inline_completions_override = show_inline_completions;
2601 self.refresh_inline_completion(false, true, cx);
2602 }
2603
2604 fn should_show_inline_completions(
2605 &self,
2606 buffer: &Model<Buffer>,
2607 buffer_position: language::Anchor,
2608 cx: &AppContext,
2609 ) -> bool {
2610 if !self.snippet_stack.is_empty() {
2611 return false;
2612 }
2613
2614 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
2615 return false;
2616 }
2617
2618 if let Some(provider) = self.inline_completion_provider() {
2619 if let Some(show_inline_completions) = self.show_inline_completions_override {
2620 show_inline_completions
2621 } else {
2622 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
2623 }
2624 } else {
2625 false
2626 }
2627 }
2628
2629 fn inline_completions_disabled_in_scope(
2630 &self,
2631 buffer: &Model<Buffer>,
2632 buffer_position: language::Anchor,
2633 cx: &AppContext,
2634 ) -> bool {
2635 let snapshot = buffer.read(cx).snapshot();
2636 let settings = snapshot.settings_at(buffer_position, cx);
2637
2638 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
2639 return false;
2640 };
2641
2642 scope.override_name().map_or(false, |scope_name| {
2643 settings
2644 .inline_completions_disabled_in
2645 .iter()
2646 .any(|s| s == scope_name)
2647 })
2648 }
2649
2650 pub fn set_use_modal_editing(&mut self, to: bool) {
2651 self.use_modal_editing = to;
2652 }
2653
2654 pub fn use_modal_editing(&self) -> bool {
2655 self.use_modal_editing
2656 }
2657
2658 fn selections_did_change(
2659 &mut self,
2660 local: bool,
2661 old_cursor_position: &Anchor,
2662 show_completions: bool,
2663 cx: &mut ViewContext<Self>,
2664 ) {
2665 cx.invalidate_character_coordinates();
2666
2667 // Copy selections to primary selection buffer
2668 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
2669 if local {
2670 let selections = self.selections.all::<usize>(cx);
2671 let buffer_handle = self.buffer.read(cx).read(cx);
2672
2673 let mut text = String::new();
2674 for (index, selection) in selections.iter().enumerate() {
2675 let text_for_selection = buffer_handle
2676 .text_for_range(selection.start..selection.end)
2677 .collect::<String>();
2678
2679 text.push_str(&text_for_selection);
2680 if index != selections.len() - 1 {
2681 text.push('\n');
2682 }
2683 }
2684
2685 if !text.is_empty() {
2686 cx.write_to_primary(ClipboardItem::new_string(text));
2687 }
2688 }
2689
2690 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
2691 self.buffer.update(cx, |buffer, cx| {
2692 buffer.set_active_selections(
2693 &self.selections.disjoint_anchors(),
2694 self.selections.line_mode,
2695 self.cursor_shape,
2696 cx,
2697 )
2698 });
2699 }
2700 let display_map = self
2701 .display_map
2702 .update(cx, |display_map, cx| display_map.snapshot(cx));
2703 let buffer = &display_map.buffer_snapshot;
2704 self.add_selections_state = None;
2705 self.select_next_state = None;
2706 self.select_prev_state = None;
2707 self.select_larger_syntax_node_stack.clear();
2708 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
2709 self.snippet_stack
2710 .invalidate(&self.selections.disjoint_anchors(), buffer);
2711 self.take_rename(false, cx);
2712
2713 let new_cursor_position = self.selections.newest_anchor().head();
2714
2715 self.push_to_nav_history(
2716 *old_cursor_position,
2717 Some(new_cursor_position.to_point(buffer)),
2718 cx,
2719 );
2720
2721 if local {
2722 let new_cursor_position = self.selections.newest_anchor().head();
2723 let mut context_menu = self.context_menu.write();
2724 let completion_menu = match context_menu.as_ref() {
2725 Some(ContextMenu::Completions(menu)) => Some(menu),
2726
2727 _ => {
2728 *context_menu = None;
2729 None
2730 }
2731 };
2732
2733 if let Some(completion_menu) = completion_menu {
2734 let cursor_position = new_cursor_position.to_offset(buffer);
2735 let (word_range, kind) =
2736 buffer.surrounding_word(completion_menu.initial_position, true);
2737 if kind == Some(CharKind::Word)
2738 && word_range.to_inclusive().contains(&cursor_position)
2739 {
2740 let mut completion_menu = completion_menu.clone();
2741 drop(context_menu);
2742
2743 let query = Self::completion_query(buffer, cursor_position);
2744 cx.spawn(move |this, mut cx| async move {
2745 completion_menu
2746 .filter(query.as_deref(), cx.background_executor().clone())
2747 .await;
2748
2749 this.update(&mut cx, |this, cx| {
2750 let mut context_menu = this.context_menu.write();
2751 let Some(ContextMenu::Completions(menu)) = context_menu.as_ref() else {
2752 return;
2753 };
2754
2755 if menu.id > completion_menu.id {
2756 return;
2757 }
2758
2759 *context_menu = Some(ContextMenu::Completions(completion_menu));
2760 drop(context_menu);
2761 cx.notify();
2762 })
2763 })
2764 .detach();
2765
2766 if show_completions {
2767 self.show_completions(&ShowCompletions { trigger: None }, cx);
2768 }
2769 } else {
2770 drop(context_menu);
2771 self.hide_context_menu(cx);
2772 }
2773 } else {
2774 drop(context_menu);
2775 }
2776
2777 hide_hover(self, cx);
2778
2779 if old_cursor_position.to_display_point(&display_map).row()
2780 != new_cursor_position.to_display_point(&display_map).row()
2781 {
2782 self.available_code_actions.take();
2783 }
2784 self.refresh_code_actions(cx);
2785 self.refresh_document_highlights(cx);
2786 refresh_matching_bracket_highlights(self, cx);
2787 self.discard_inline_completion(false, cx);
2788 linked_editing_ranges::refresh_linked_ranges(self, cx);
2789 if self.git_blame_inline_enabled {
2790 self.start_inline_blame_timer(cx);
2791 }
2792 }
2793
2794 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2795 cx.emit(EditorEvent::SelectionsChanged { local });
2796
2797 if self.selections.disjoint_anchors().len() == 1 {
2798 cx.emit(SearchEvent::ActiveMatchChanged)
2799 }
2800 cx.notify();
2801 }
2802
2803 pub fn change_selections<R>(
2804 &mut self,
2805 autoscroll: Option<Autoscroll>,
2806 cx: &mut ViewContext<Self>,
2807 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2808 ) -> R {
2809 self.change_selections_inner(autoscroll, true, cx, change)
2810 }
2811
2812 pub fn change_selections_inner<R>(
2813 &mut self,
2814 autoscroll: Option<Autoscroll>,
2815 request_completions: bool,
2816 cx: &mut ViewContext<Self>,
2817 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2818 ) -> R {
2819 let old_cursor_position = self.selections.newest_anchor().head();
2820 self.push_to_selection_history();
2821
2822 let (changed, result) = self.selections.change_with(cx, change);
2823
2824 if changed {
2825 if let Some(autoscroll) = autoscroll {
2826 self.request_autoscroll(autoscroll, cx);
2827 }
2828 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2829
2830 if self.should_open_signature_help_automatically(
2831 &old_cursor_position,
2832 self.signature_help_state.backspace_pressed(),
2833 cx,
2834 ) {
2835 self.show_signature_help(&ShowSignatureHelp, cx);
2836 }
2837 self.signature_help_state.set_backspace_pressed(false);
2838 }
2839
2840 result
2841 }
2842
2843 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2844 where
2845 I: IntoIterator<Item = (Range<S>, T)>,
2846 S: ToOffset,
2847 T: Into<Arc<str>>,
2848 {
2849 if self.read_only(cx) {
2850 return;
2851 }
2852
2853 self.buffer
2854 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2855 }
2856
2857 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2858 where
2859 I: IntoIterator<Item = (Range<S>, T)>,
2860 S: ToOffset,
2861 T: Into<Arc<str>>,
2862 {
2863 if self.read_only(cx) {
2864 return;
2865 }
2866
2867 self.buffer.update(cx, |buffer, cx| {
2868 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2869 });
2870 }
2871
2872 pub fn edit_with_block_indent<I, S, T>(
2873 &mut self,
2874 edits: I,
2875 original_indent_columns: Vec<u32>,
2876 cx: &mut ViewContext<Self>,
2877 ) where
2878 I: IntoIterator<Item = (Range<S>, T)>,
2879 S: ToOffset,
2880 T: Into<Arc<str>>,
2881 {
2882 if self.read_only(cx) {
2883 return;
2884 }
2885
2886 self.buffer.update(cx, |buffer, cx| {
2887 buffer.edit(
2888 edits,
2889 Some(AutoindentMode::Block {
2890 original_indent_columns,
2891 }),
2892 cx,
2893 )
2894 });
2895 }
2896
2897 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2898 self.hide_context_menu(cx);
2899
2900 match phase {
2901 SelectPhase::Begin {
2902 position,
2903 add,
2904 click_count,
2905 } => self.begin_selection(position, add, click_count, cx),
2906 SelectPhase::BeginColumnar {
2907 position,
2908 goal_column,
2909 reset,
2910 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2911 SelectPhase::Extend {
2912 position,
2913 click_count,
2914 } => self.extend_selection(position, click_count, cx),
2915 SelectPhase::Update {
2916 position,
2917 goal_column,
2918 scroll_delta,
2919 } => self.update_selection(position, goal_column, scroll_delta, cx),
2920 SelectPhase::End => self.end_selection(cx),
2921 }
2922 }
2923
2924 fn extend_selection(
2925 &mut self,
2926 position: DisplayPoint,
2927 click_count: usize,
2928 cx: &mut ViewContext<Self>,
2929 ) {
2930 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2931 let tail = self.selections.newest::<usize>(cx).tail();
2932 self.begin_selection(position, false, click_count, cx);
2933
2934 let position = position.to_offset(&display_map, Bias::Left);
2935 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2936
2937 let mut pending_selection = self
2938 .selections
2939 .pending_anchor()
2940 .expect("extend_selection not called with pending selection");
2941 if position >= tail {
2942 pending_selection.start = tail_anchor;
2943 } else {
2944 pending_selection.end = tail_anchor;
2945 pending_selection.reversed = true;
2946 }
2947
2948 let mut pending_mode = self.selections.pending_mode().unwrap();
2949 match &mut pending_mode {
2950 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2951 _ => {}
2952 }
2953
2954 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2955 s.set_pending(pending_selection, pending_mode)
2956 });
2957 }
2958
2959 fn begin_selection(
2960 &mut self,
2961 position: DisplayPoint,
2962 add: bool,
2963 click_count: usize,
2964 cx: &mut ViewContext<Self>,
2965 ) {
2966 if !self.focus_handle.is_focused(cx) {
2967 self.last_focused_descendant = None;
2968 cx.focus(&self.focus_handle);
2969 }
2970
2971 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2972 let buffer = &display_map.buffer_snapshot;
2973 let newest_selection = self.selections.newest_anchor().clone();
2974 let position = display_map.clip_point(position, Bias::Left);
2975
2976 let start;
2977 let end;
2978 let mode;
2979 let auto_scroll;
2980 match click_count {
2981 1 => {
2982 start = buffer.anchor_before(position.to_point(&display_map));
2983 end = start;
2984 mode = SelectMode::Character;
2985 auto_scroll = true;
2986 }
2987 2 => {
2988 let range = movement::surrounding_word(&display_map, position);
2989 start = buffer.anchor_before(range.start.to_point(&display_map));
2990 end = buffer.anchor_before(range.end.to_point(&display_map));
2991 mode = SelectMode::Word(start..end);
2992 auto_scroll = true;
2993 }
2994 3 => {
2995 let position = display_map
2996 .clip_point(position, Bias::Left)
2997 .to_point(&display_map);
2998 let line_start = display_map.prev_line_boundary(position).0;
2999 let next_line_start = buffer.clip_point(
3000 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3001 Bias::Left,
3002 );
3003 start = buffer.anchor_before(line_start);
3004 end = buffer.anchor_before(next_line_start);
3005 mode = SelectMode::Line(start..end);
3006 auto_scroll = true;
3007 }
3008 _ => {
3009 start = buffer.anchor_before(0);
3010 end = buffer.anchor_before(buffer.len());
3011 mode = SelectMode::All;
3012 auto_scroll = false;
3013 }
3014 }
3015
3016 let point_to_delete: Option<usize> = {
3017 let selected_points: Vec<Selection<Point>> =
3018 self.selections.disjoint_in_range(start..end, cx);
3019
3020 if !add || click_count > 1 {
3021 None
3022 } else if !selected_points.is_empty() {
3023 Some(selected_points[0].id)
3024 } else {
3025 let clicked_point_already_selected =
3026 self.selections.disjoint.iter().find(|selection| {
3027 selection.start.to_point(buffer) == start.to_point(buffer)
3028 || selection.end.to_point(buffer) == end.to_point(buffer)
3029 });
3030
3031 clicked_point_already_selected.map(|selection| selection.id)
3032 }
3033 };
3034
3035 let selections_count = self.selections.count();
3036
3037 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
3038 if let Some(point_to_delete) = point_to_delete {
3039 s.delete(point_to_delete);
3040
3041 if selections_count == 1 {
3042 s.set_pending_anchor_range(start..end, mode);
3043 }
3044 } else {
3045 if !add {
3046 s.clear_disjoint();
3047 } else if click_count > 1 {
3048 s.delete(newest_selection.id)
3049 }
3050
3051 s.set_pending_anchor_range(start..end, mode);
3052 }
3053 });
3054 }
3055
3056 fn begin_columnar_selection(
3057 &mut self,
3058 position: DisplayPoint,
3059 goal_column: u32,
3060 reset: bool,
3061 cx: &mut ViewContext<Self>,
3062 ) {
3063 if !self.focus_handle.is_focused(cx) {
3064 self.last_focused_descendant = None;
3065 cx.focus(&self.focus_handle);
3066 }
3067
3068 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3069
3070 if reset {
3071 let pointer_position = display_map
3072 .buffer_snapshot
3073 .anchor_before(position.to_point(&display_map));
3074
3075 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
3076 s.clear_disjoint();
3077 s.set_pending_anchor_range(
3078 pointer_position..pointer_position,
3079 SelectMode::Character,
3080 );
3081 });
3082 }
3083
3084 let tail = self.selections.newest::<Point>(cx).tail();
3085 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
3086
3087 if !reset {
3088 self.select_columns(
3089 tail.to_display_point(&display_map),
3090 position,
3091 goal_column,
3092 &display_map,
3093 cx,
3094 );
3095 }
3096 }
3097
3098 fn update_selection(
3099 &mut self,
3100 position: DisplayPoint,
3101 goal_column: u32,
3102 scroll_delta: gpui::Point<f32>,
3103 cx: &mut ViewContext<Self>,
3104 ) {
3105 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
3106
3107 if let Some(tail) = self.columnar_selection_tail.as_ref() {
3108 let tail = tail.to_display_point(&display_map);
3109 self.select_columns(tail, position, goal_column, &display_map, cx);
3110 } else if let Some(mut pending) = self.selections.pending_anchor() {
3111 let buffer = self.buffer.read(cx).snapshot(cx);
3112 let head;
3113 let tail;
3114 let mode = self.selections.pending_mode().unwrap();
3115 match &mode {
3116 SelectMode::Character => {
3117 head = position.to_point(&display_map);
3118 tail = pending.tail().to_point(&buffer);
3119 }
3120 SelectMode::Word(original_range) => {
3121 let original_display_range = original_range.start.to_display_point(&display_map)
3122 ..original_range.end.to_display_point(&display_map);
3123 let original_buffer_range = original_display_range.start.to_point(&display_map)
3124 ..original_display_range.end.to_point(&display_map);
3125 if movement::is_inside_word(&display_map, position)
3126 || original_display_range.contains(&position)
3127 {
3128 let word_range = movement::surrounding_word(&display_map, position);
3129 if word_range.start < original_display_range.start {
3130 head = word_range.start.to_point(&display_map);
3131 } else {
3132 head = word_range.end.to_point(&display_map);
3133 }
3134 } else {
3135 head = position.to_point(&display_map);
3136 }
3137
3138 if head <= original_buffer_range.start {
3139 tail = original_buffer_range.end;
3140 } else {
3141 tail = original_buffer_range.start;
3142 }
3143 }
3144 SelectMode::Line(original_range) => {
3145 let original_range = original_range.to_point(&display_map.buffer_snapshot);
3146
3147 let position = display_map
3148 .clip_point(position, Bias::Left)
3149 .to_point(&display_map);
3150 let line_start = display_map.prev_line_boundary(position).0;
3151 let next_line_start = buffer.clip_point(
3152 display_map.next_line_boundary(position).0 + Point::new(1, 0),
3153 Bias::Left,
3154 );
3155
3156 if line_start < original_range.start {
3157 head = line_start
3158 } else {
3159 head = next_line_start
3160 }
3161
3162 if head <= original_range.start {
3163 tail = original_range.end;
3164 } else {
3165 tail = original_range.start;
3166 }
3167 }
3168 SelectMode::All => {
3169 return;
3170 }
3171 };
3172
3173 if head < tail {
3174 pending.start = buffer.anchor_before(head);
3175 pending.end = buffer.anchor_before(tail);
3176 pending.reversed = true;
3177 } else {
3178 pending.start = buffer.anchor_before(tail);
3179 pending.end = buffer.anchor_before(head);
3180 pending.reversed = false;
3181 }
3182
3183 self.change_selections(None, cx, |s| {
3184 s.set_pending(pending, mode);
3185 });
3186 } else {
3187 log::error!("update_selection dispatched with no pending selection");
3188 return;
3189 }
3190
3191 self.apply_scroll_delta(scroll_delta, cx);
3192 cx.notify();
3193 }
3194
3195 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
3196 self.columnar_selection_tail.take();
3197 if self.selections.pending_anchor().is_some() {
3198 let selections = self.selections.all::<usize>(cx);
3199 self.change_selections(None, cx, |s| {
3200 s.select(selections);
3201 s.clear_pending();
3202 });
3203 }
3204 }
3205
3206 fn select_columns(
3207 &mut self,
3208 tail: DisplayPoint,
3209 head: DisplayPoint,
3210 goal_column: u32,
3211 display_map: &DisplaySnapshot,
3212 cx: &mut ViewContext<Self>,
3213 ) {
3214 let start_row = cmp::min(tail.row(), head.row());
3215 let end_row = cmp::max(tail.row(), head.row());
3216 let start_column = cmp::min(tail.column(), goal_column);
3217 let end_column = cmp::max(tail.column(), goal_column);
3218 let reversed = start_column < tail.column();
3219
3220 let selection_ranges = (start_row.0..=end_row.0)
3221 .map(DisplayRow)
3222 .filter_map(|row| {
3223 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
3224 let start = display_map
3225 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
3226 .to_point(display_map);
3227 let end = display_map
3228 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
3229 .to_point(display_map);
3230 if reversed {
3231 Some(end..start)
3232 } else {
3233 Some(start..end)
3234 }
3235 } else {
3236 None
3237 }
3238 })
3239 .collect::<Vec<_>>();
3240
3241 self.change_selections(None, cx, |s| {
3242 s.select_ranges(selection_ranges);
3243 });
3244 cx.notify();
3245 }
3246
3247 pub fn has_pending_nonempty_selection(&self) -> bool {
3248 let pending_nonempty_selection = match self.selections.pending_anchor() {
3249 Some(Selection { start, end, .. }) => start != end,
3250 None => false,
3251 };
3252
3253 pending_nonempty_selection
3254 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
3255 }
3256
3257 pub fn has_pending_selection(&self) -> bool {
3258 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
3259 }
3260
3261 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
3262 if self.clear_expanded_diff_hunks(cx) {
3263 cx.notify();
3264 return;
3265 }
3266 if self.dismiss_menus_and_popups(true, cx) {
3267 return;
3268 }
3269
3270 if self.mode == EditorMode::Full
3271 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
3272 {
3273 return;
3274 }
3275
3276 cx.propagate();
3277 }
3278
3279 pub fn dismiss_menus_and_popups(
3280 &mut self,
3281 should_report_inline_completion_event: bool,
3282 cx: &mut ViewContext<Self>,
3283 ) -> bool {
3284 if self.take_rename(false, cx).is_some() {
3285 return true;
3286 }
3287
3288 if hide_hover(self, cx) {
3289 return true;
3290 }
3291
3292 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
3293 return true;
3294 }
3295
3296 if self.hide_context_menu(cx).is_some() {
3297 return true;
3298 }
3299
3300 if self.mouse_context_menu.take().is_some() {
3301 return true;
3302 }
3303
3304 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
3305 return true;
3306 }
3307
3308 if self.snippet_stack.pop().is_some() {
3309 return true;
3310 }
3311
3312 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
3313 self.dismiss_diagnostics(cx);
3314 return true;
3315 }
3316
3317 false
3318 }
3319
3320 fn linked_editing_ranges_for(
3321 &self,
3322 selection: Range<text::Anchor>,
3323 cx: &AppContext,
3324 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
3325 if self.linked_edit_ranges.is_empty() {
3326 return None;
3327 }
3328 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
3329 selection.end.buffer_id.and_then(|end_buffer_id| {
3330 if selection.start.buffer_id != Some(end_buffer_id) {
3331 return None;
3332 }
3333 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
3334 let snapshot = buffer.read(cx).snapshot();
3335 self.linked_edit_ranges
3336 .get(end_buffer_id, selection.start..selection.end, &snapshot)
3337 .map(|ranges| (ranges, snapshot, buffer))
3338 })?;
3339 use text::ToOffset as TO;
3340 // find offset from the start of current range to current cursor position
3341 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
3342
3343 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
3344 let start_difference = start_offset - start_byte_offset;
3345 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
3346 let end_difference = end_offset - start_byte_offset;
3347 // Current range has associated linked ranges.
3348 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3349 for range in linked_ranges.iter() {
3350 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
3351 let end_offset = start_offset + end_difference;
3352 let start_offset = start_offset + start_difference;
3353 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
3354 continue;
3355 }
3356 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
3357 if s.start.buffer_id != selection.start.buffer_id
3358 || s.end.buffer_id != selection.end.buffer_id
3359 {
3360 return false;
3361 }
3362 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
3363 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
3364 }) {
3365 continue;
3366 }
3367 let start = buffer_snapshot.anchor_after(start_offset);
3368 let end = buffer_snapshot.anchor_after(end_offset);
3369 linked_edits
3370 .entry(buffer.clone())
3371 .or_default()
3372 .push(start..end);
3373 }
3374 Some(linked_edits)
3375 }
3376
3377 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3378 let text: Arc<str> = text.into();
3379
3380 if self.read_only(cx) {
3381 return;
3382 }
3383
3384 let selections = self.selections.all_adjusted(cx);
3385 let mut bracket_inserted = false;
3386 let mut edits = Vec::new();
3387 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3388 let mut new_selections = Vec::with_capacity(selections.len());
3389 let mut new_autoclose_regions = Vec::new();
3390 let snapshot = self.buffer.read(cx).read(cx);
3391
3392 for (selection, autoclose_region) in
3393 self.selections_with_autoclose_regions(selections, &snapshot)
3394 {
3395 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
3396 // Determine if the inserted text matches the opening or closing
3397 // bracket of any of this language's bracket pairs.
3398 let mut bracket_pair = None;
3399 let mut is_bracket_pair_start = false;
3400 let mut is_bracket_pair_end = false;
3401 if !text.is_empty() {
3402 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
3403 // and they are removing the character that triggered IME popup.
3404 for (pair, enabled) in scope.brackets() {
3405 if !pair.close && !pair.surround {
3406 continue;
3407 }
3408
3409 if enabled && pair.start.ends_with(text.as_ref()) {
3410 let prefix_len = pair.start.len() - text.len();
3411 let preceding_text_matches_prefix = prefix_len == 0
3412 || (selection.start.column >= (prefix_len as u32)
3413 && snapshot.contains_str_at(
3414 Point::new(
3415 selection.start.row,
3416 selection.start.column - (prefix_len as u32),
3417 ),
3418 &pair.start[..prefix_len],
3419 ));
3420 if preceding_text_matches_prefix {
3421 bracket_pair = Some(pair.clone());
3422 is_bracket_pair_start = true;
3423 break;
3424 }
3425 }
3426 if pair.end.as_str() == text.as_ref() {
3427 bracket_pair = Some(pair.clone());
3428 is_bracket_pair_end = true;
3429 break;
3430 }
3431 }
3432 }
3433
3434 if let Some(bracket_pair) = bracket_pair {
3435 let snapshot_settings = snapshot.settings_at(selection.start, cx);
3436 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
3437 let auto_surround =
3438 self.use_auto_surround && snapshot_settings.use_auto_surround;
3439 if selection.is_empty() {
3440 if is_bracket_pair_start {
3441 // If the inserted text is a suffix of an opening bracket and the
3442 // selection is preceded by the rest of the opening bracket, then
3443 // insert the closing bracket.
3444 let following_text_allows_autoclose = snapshot
3445 .chars_at(selection.start)
3446 .next()
3447 .map_or(true, |c| scope.should_autoclose_before(c));
3448
3449 let is_closing_quote = if bracket_pair.end == bracket_pair.start
3450 && bracket_pair.start.len() == 1
3451 {
3452 let target = bracket_pair.start.chars().next().unwrap();
3453 let current_line_count = snapshot
3454 .reversed_chars_at(selection.start)
3455 .take_while(|&c| c != '\n')
3456 .filter(|&c| c == target)
3457 .count();
3458 current_line_count % 2 == 1
3459 } else {
3460 false
3461 };
3462
3463 if autoclose
3464 && bracket_pair.close
3465 && following_text_allows_autoclose
3466 && !is_closing_quote
3467 {
3468 let anchor = snapshot.anchor_before(selection.end);
3469 new_selections.push((selection.map(|_| anchor), text.len()));
3470 new_autoclose_regions.push((
3471 anchor,
3472 text.len(),
3473 selection.id,
3474 bracket_pair.clone(),
3475 ));
3476 edits.push((
3477 selection.range(),
3478 format!("{}{}", text, bracket_pair.end).into(),
3479 ));
3480 bracket_inserted = true;
3481 continue;
3482 }
3483 }
3484
3485 if let Some(region) = autoclose_region {
3486 // If the selection is followed by an auto-inserted closing bracket,
3487 // then don't insert that closing bracket again; just move the selection
3488 // past the closing bracket.
3489 let should_skip = selection.end == region.range.end.to_point(&snapshot)
3490 && text.as_ref() == region.pair.end.as_str();
3491 if should_skip {
3492 let anchor = snapshot.anchor_after(selection.end);
3493 new_selections
3494 .push((selection.map(|_| anchor), region.pair.end.len()));
3495 continue;
3496 }
3497 }
3498
3499 let always_treat_brackets_as_autoclosed = snapshot
3500 .settings_at(selection.start, cx)
3501 .always_treat_brackets_as_autoclosed;
3502 if always_treat_brackets_as_autoclosed
3503 && is_bracket_pair_end
3504 && snapshot.contains_str_at(selection.end, text.as_ref())
3505 {
3506 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
3507 // and the inserted text is a closing bracket and the selection is followed
3508 // by the closing bracket then move the selection past the closing bracket.
3509 let anchor = snapshot.anchor_after(selection.end);
3510 new_selections.push((selection.map(|_| anchor), text.len()));
3511 continue;
3512 }
3513 }
3514 // If an opening bracket is 1 character long and is typed while
3515 // text is selected, then surround that text with the bracket pair.
3516 else if auto_surround
3517 && bracket_pair.surround
3518 && is_bracket_pair_start
3519 && bracket_pair.start.chars().count() == 1
3520 {
3521 edits.push((selection.start..selection.start, text.clone()));
3522 edits.push((
3523 selection.end..selection.end,
3524 bracket_pair.end.as_str().into(),
3525 ));
3526 bracket_inserted = true;
3527 new_selections.push((
3528 Selection {
3529 id: selection.id,
3530 start: snapshot.anchor_after(selection.start),
3531 end: snapshot.anchor_before(selection.end),
3532 reversed: selection.reversed,
3533 goal: selection.goal,
3534 },
3535 0,
3536 ));
3537 continue;
3538 }
3539 }
3540 }
3541
3542 if self.auto_replace_emoji_shortcode
3543 && selection.is_empty()
3544 && text.as_ref().ends_with(':')
3545 {
3546 if let Some(possible_emoji_short_code) =
3547 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
3548 {
3549 if !possible_emoji_short_code.is_empty() {
3550 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
3551 let emoji_shortcode_start = Point::new(
3552 selection.start.row,
3553 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
3554 );
3555
3556 // Remove shortcode from buffer
3557 edits.push((
3558 emoji_shortcode_start..selection.start,
3559 "".to_string().into(),
3560 ));
3561 new_selections.push((
3562 Selection {
3563 id: selection.id,
3564 start: snapshot.anchor_after(emoji_shortcode_start),
3565 end: snapshot.anchor_before(selection.start),
3566 reversed: selection.reversed,
3567 goal: selection.goal,
3568 },
3569 0,
3570 ));
3571
3572 // Insert emoji
3573 let selection_start_anchor = snapshot.anchor_after(selection.start);
3574 new_selections.push((selection.map(|_| selection_start_anchor), 0));
3575 edits.push((selection.start..selection.end, emoji.to_string().into()));
3576
3577 continue;
3578 }
3579 }
3580 }
3581 }
3582
3583 // If not handling any auto-close operation, then just replace the selected
3584 // text with the given input and move the selection to the end of the
3585 // newly inserted text.
3586 let anchor = snapshot.anchor_after(selection.end);
3587 if !self.linked_edit_ranges.is_empty() {
3588 let start_anchor = snapshot.anchor_before(selection.start);
3589
3590 let is_word_char = text.chars().next().map_or(true, |char| {
3591 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
3592 classifier.is_word(char)
3593 });
3594
3595 if is_word_char {
3596 if let Some(ranges) = self
3597 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
3598 {
3599 for (buffer, edits) in ranges {
3600 linked_edits
3601 .entry(buffer.clone())
3602 .or_default()
3603 .extend(edits.into_iter().map(|range| (range, text.clone())));
3604 }
3605 }
3606 }
3607 }
3608
3609 new_selections.push((selection.map(|_| anchor), 0));
3610 edits.push((selection.start..selection.end, text.clone()));
3611 }
3612
3613 drop(snapshot);
3614
3615 self.transact(cx, |this, cx| {
3616 this.buffer.update(cx, |buffer, cx| {
3617 buffer.edit(edits, this.autoindent_mode.clone(), cx);
3618 });
3619 for (buffer, edits) in linked_edits {
3620 buffer.update(cx, |buffer, cx| {
3621 let snapshot = buffer.snapshot();
3622 let edits = edits
3623 .into_iter()
3624 .map(|(range, text)| {
3625 use text::ToPoint as TP;
3626 let end_point = TP::to_point(&range.end, &snapshot);
3627 let start_point = TP::to_point(&range.start, &snapshot);
3628 (start_point..end_point, text)
3629 })
3630 .sorted_by_key(|(range, _)| range.start)
3631 .collect::<Vec<_>>();
3632 buffer.edit(edits, None, cx);
3633 })
3634 }
3635 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
3636 let new_selection_deltas = new_selections.iter().map(|e| e.1);
3637 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
3638 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
3639 .zip(new_selection_deltas)
3640 .map(|(selection, delta)| Selection {
3641 id: selection.id,
3642 start: selection.start + delta,
3643 end: selection.end + delta,
3644 reversed: selection.reversed,
3645 goal: SelectionGoal::None,
3646 })
3647 .collect::<Vec<_>>();
3648
3649 let mut i = 0;
3650 for (position, delta, selection_id, pair) in new_autoclose_regions {
3651 let position = position.to_offset(&map.buffer_snapshot) + delta;
3652 let start = map.buffer_snapshot.anchor_before(position);
3653 let end = map.buffer_snapshot.anchor_after(position);
3654 while let Some(existing_state) = this.autoclose_regions.get(i) {
3655 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
3656 Ordering::Less => i += 1,
3657 Ordering::Greater => break,
3658 Ordering::Equal => {
3659 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
3660 Ordering::Less => i += 1,
3661 Ordering::Equal => break,
3662 Ordering::Greater => break,
3663 }
3664 }
3665 }
3666 }
3667 this.autoclose_regions.insert(
3668 i,
3669 AutocloseRegion {
3670 selection_id,
3671 range: start..end,
3672 pair,
3673 },
3674 );
3675 }
3676
3677 let had_active_inline_completion = this.has_active_inline_completion(cx);
3678 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
3679 s.select(new_selections)
3680 });
3681
3682 if !bracket_inserted {
3683 if let Some(on_type_format_task) =
3684 this.trigger_on_type_formatting(text.to_string(), cx)
3685 {
3686 on_type_format_task.detach_and_log_err(cx);
3687 }
3688 }
3689
3690 let editor_settings = EditorSettings::get_global(cx);
3691 if bracket_inserted
3692 && (editor_settings.auto_signature_help
3693 || editor_settings.show_signature_help_after_edits)
3694 {
3695 this.show_signature_help(&ShowSignatureHelp, cx);
3696 }
3697
3698 let trigger_in_words = !had_active_inline_completion;
3699 this.trigger_completion_on_input(&text, trigger_in_words, cx);
3700 linked_editing_ranges::refresh_linked_ranges(this, cx);
3701 this.refresh_inline_completion(true, false, cx);
3702 });
3703 }
3704
3705 fn find_possible_emoji_shortcode_at_position(
3706 snapshot: &MultiBufferSnapshot,
3707 position: Point,
3708 ) -> Option<String> {
3709 let mut chars = Vec::new();
3710 let mut found_colon = false;
3711 for char in snapshot.reversed_chars_at(position).take(100) {
3712 // Found a possible emoji shortcode in the middle of the buffer
3713 if found_colon {
3714 if char.is_whitespace() {
3715 chars.reverse();
3716 return Some(chars.iter().collect());
3717 }
3718 // If the previous character is not a whitespace, we are in the middle of a word
3719 // and we only want to complete the shortcode if the word is made up of other emojis
3720 let mut containing_word = String::new();
3721 for ch in snapshot
3722 .reversed_chars_at(position)
3723 .skip(chars.len() + 1)
3724 .take(100)
3725 {
3726 if ch.is_whitespace() {
3727 break;
3728 }
3729 containing_word.push(ch);
3730 }
3731 let containing_word = containing_word.chars().rev().collect::<String>();
3732 if util::word_consists_of_emojis(containing_word.as_str()) {
3733 chars.reverse();
3734 return Some(chars.iter().collect());
3735 }
3736 }
3737
3738 if char.is_whitespace() || !char.is_ascii() {
3739 return None;
3740 }
3741 if char == ':' {
3742 found_colon = true;
3743 } else {
3744 chars.push(char);
3745 }
3746 }
3747 // Found a possible emoji shortcode at the beginning of the buffer
3748 chars.reverse();
3749 Some(chars.iter().collect())
3750 }
3751
3752 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
3753 self.transact(cx, |this, cx| {
3754 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
3755 let selections = this.selections.all::<usize>(cx);
3756 let multi_buffer = this.buffer.read(cx);
3757 let buffer = multi_buffer.snapshot(cx);
3758 selections
3759 .iter()
3760 .map(|selection| {
3761 let start_point = selection.start.to_point(&buffer);
3762 let mut indent =
3763 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
3764 indent.len = cmp::min(indent.len, start_point.column);
3765 let start = selection.start;
3766 let end = selection.end;
3767 let selection_is_empty = start == end;
3768 let language_scope = buffer.language_scope_at(start);
3769 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3770 &language_scope
3771 {
3772 let leading_whitespace_len = buffer
3773 .reversed_chars_at(start)
3774 .take_while(|c| c.is_whitespace() && *c != '\n')
3775 .map(|c| c.len_utf8())
3776 .sum::<usize>();
3777
3778 let trailing_whitespace_len = buffer
3779 .chars_at(end)
3780 .take_while(|c| c.is_whitespace() && *c != '\n')
3781 .map(|c| c.len_utf8())
3782 .sum::<usize>();
3783
3784 let insert_extra_newline =
3785 language.brackets().any(|(pair, enabled)| {
3786 let pair_start = pair.start.trim_end();
3787 let pair_end = pair.end.trim_start();
3788
3789 enabled
3790 && pair.newline
3791 && buffer.contains_str_at(
3792 end + trailing_whitespace_len,
3793 pair_end,
3794 )
3795 && buffer.contains_str_at(
3796 (start - leading_whitespace_len)
3797 .saturating_sub(pair_start.len()),
3798 pair_start,
3799 )
3800 });
3801
3802 // Comment extension on newline is allowed only for cursor selections
3803 let comment_delimiter = maybe!({
3804 if !selection_is_empty {
3805 return None;
3806 }
3807
3808 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3809 return None;
3810 }
3811
3812 let delimiters = language.line_comment_prefixes();
3813 let max_len_of_delimiter =
3814 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3815 let (snapshot, range) =
3816 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3817
3818 let mut index_of_first_non_whitespace = 0;
3819 let comment_candidate = snapshot
3820 .chars_for_range(range)
3821 .skip_while(|c| {
3822 let should_skip = c.is_whitespace();
3823 if should_skip {
3824 index_of_first_non_whitespace += 1;
3825 }
3826 should_skip
3827 })
3828 .take(max_len_of_delimiter)
3829 .collect::<String>();
3830 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3831 comment_candidate.starts_with(comment_prefix.as_ref())
3832 })?;
3833 let cursor_is_placed_after_comment_marker =
3834 index_of_first_non_whitespace + comment_prefix.len()
3835 <= start_point.column as usize;
3836 if cursor_is_placed_after_comment_marker {
3837 Some(comment_prefix.clone())
3838 } else {
3839 None
3840 }
3841 });
3842 (comment_delimiter, insert_extra_newline)
3843 } else {
3844 (None, false)
3845 };
3846
3847 let capacity_for_delimiter = comment_delimiter
3848 .as_deref()
3849 .map(str::len)
3850 .unwrap_or_default();
3851 let mut new_text =
3852 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3853 new_text.push('\n');
3854 new_text.extend(indent.chars());
3855 if let Some(delimiter) = &comment_delimiter {
3856 new_text.push_str(delimiter);
3857 }
3858 if insert_extra_newline {
3859 new_text = new_text.repeat(2);
3860 }
3861
3862 let anchor = buffer.anchor_after(end);
3863 let new_selection = selection.map(|_| anchor);
3864 (
3865 (start..end, new_text),
3866 (insert_extra_newline, new_selection),
3867 )
3868 })
3869 .unzip()
3870 };
3871
3872 this.edit_with_autoindent(edits, cx);
3873 let buffer = this.buffer.read(cx).snapshot(cx);
3874 let new_selections = selection_fixup_info
3875 .into_iter()
3876 .map(|(extra_newline_inserted, new_selection)| {
3877 let mut cursor = new_selection.end.to_point(&buffer);
3878 if extra_newline_inserted {
3879 cursor.row -= 1;
3880 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3881 }
3882 new_selection.map(|_| cursor)
3883 })
3884 .collect();
3885
3886 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3887 this.refresh_inline_completion(true, false, cx);
3888 });
3889 }
3890
3891 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3892 let buffer = self.buffer.read(cx);
3893 let snapshot = buffer.snapshot(cx);
3894
3895 let mut edits = Vec::new();
3896 let mut rows = Vec::new();
3897
3898 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3899 let cursor = selection.head();
3900 let row = cursor.row;
3901
3902 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3903
3904 let newline = "\n".to_string();
3905 edits.push((start_of_line..start_of_line, newline));
3906
3907 rows.push(row + rows_inserted as u32);
3908 }
3909
3910 self.transact(cx, |editor, cx| {
3911 editor.edit(edits, cx);
3912
3913 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3914 let mut index = 0;
3915 s.move_cursors_with(|map, _, _| {
3916 let row = rows[index];
3917 index += 1;
3918
3919 let point = Point::new(row, 0);
3920 let boundary = map.next_line_boundary(point).1;
3921 let clipped = map.clip_point(boundary, Bias::Left);
3922
3923 (clipped, SelectionGoal::None)
3924 });
3925 });
3926
3927 let mut indent_edits = Vec::new();
3928 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3929 for row in rows {
3930 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3931 for (row, indent) in indents {
3932 if indent.len == 0 {
3933 continue;
3934 }
3935
3936 let text = match indent.kind {
3937 IndentKind::Space => " ".repeat(indent.len as usize),
3938 IndentKind::Tab => "\t".repeat(indent.len as usize),
3939 };
3940 let point = Point::new(row.0, 0);
3941 indent_edits.push((point..point, text));
3942 }
3943 }
3944 editor.edit(indent_edits, cx);
3945 });
3946 }
3947
3948 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3949 let buffer = self.buffer.read(cx);
3950 let snapshot = buffer.snapshot(cx);
3951
3952 let mut edits = Vec::new();
3953 let mut rows = Vec::new();
3954 let mut rows_inserted = 0;
3955
3956 for selection in self.selections.all_adjusted(cx) {
3957 let cursor = selection.head();
3958 let row = cursor.row;
3959
3960 let point = Point::new(row + 1, 0);
3961 let start_of_line = snapshot.clip_point(point, Bias::Left);
3962
3963 let newline = "\n".to_string();
3964 edits.push((start_of_line..start_of_line, newline));
3965
3966 rows_inserted += 1;
3967 rows.push(row + rows_inserted);
3968 }
3969
3970 self.transact(cx, |editor, cx| {
3971 editor.edit(edits, cx);
3972
3973 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3974 let mut index = 0;
3975 s.move_cursors_with(|map, _, _| {
3976 let row = rows[index];
3977 index += 1;
3978
3979 let point = Point::new(row, 0);
3980 let boundary = map.next_line_boundary(point).1;
3981 let clipped = map.clip_point(boundary, Bias::Left);
3982
3983 (clipped, SelectionGoal::None)
3984 });
3985 });
3986
3987 let mut indent_edits = Vec::new();
3988 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3989 for row in rows {
3990 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3991 for (row, indent) in indents {
3992 if indent.len == 0 {
3993 continue;
3994 }
3995
3996 let text = match indent.kind {
3997 IndentKind::Space => " ".repeat(indent.len as usize),
3998 IndentKind::Tab => "\t".repeat(indent.len as usize),
3999 };
4000 let point = Point::new(row.0, 0);
4001 indent_edits.push((point..point, text));
4002 }
4003 }
4004 editor.edit(indent_edits, cx);
4005 });
4006 }
4007
4008 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
4009 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
4010 original_indent_columns: Vec::new(),
4011 });
4012 self.insert_with_autoindent_mode(text, autoindent, cx);
4013 }
4014
4015 fn insert_with_autoindent_mode(
4016 &mut self,
4017 text: &str,
4018 autoindent_mode: Option<AutoindentMode>,
4019 cx: &mut ViewContext<Self>,
4020 ) {
4021 if self.read_only(cx) {
4022 return;
4023 }
4024
4025 let text: Arc<str> = text.into();
4026 self.transact(cx, |this, cx| {
4027 let old_selections = this.selections.all_adjusted(cx);
4028 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
4029 let anchors = {
4030 let snapshot = buffer.read(cx);
4031 old_selections
4032 .iter()
4033 .map(|s| {
4034 let anchor = snapshot.anchor_after(s.head());
4035 s.map(|_| anchor)
4036 })
4037 .collect::<Vec<_>>()
4038 };
4039 buffer.edit(
4040 old_selections
4041 .iter()
4042 .map(|s| (s.start..s.end, text.clone())),
4043 autoindent_mode,
4044 cx,
4045 );
4046 anchors
4047 });
4048
4049 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
4050 s.select_anchors(selection_anchors);
4051 })
4052 });
4053 }
4054
4055 fn trigger_completion_on_input(
4056 &mut self,
4057 text: &str,
4058 trigger_in_words: bool,
4059 cx: &mut ViewContext<Self>,
4060 ) {
4061 if self.is_completion_trigger(text, trigger_in_words, cx) {
4062 self.show_completions(
4063 &ShowCompletions {
4064 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
4065 },
4066 cx,
4067 );
4068 } else {
4069 self.hide_context_menu(cx);
4070 }
4071 }
4072
4073 fn is_completion_trigger(
4074 &self,
4075 text: &str,
4076 trigger_in_words: bool,
4077 cx: &mut ViewContext<Self>,
4078 ) -> bool {
4079 let position = self.selections.newest_anchor().head();
4080 let multibuffer = self.buffer.read(cx);
4081 let Some(buffer) = position
4082 .buffer_id
4083 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
4084 else {
4085 return false;
4086 };
4087
4088 if let Some(completion_provider) = &self.completion_provider {
4089 completion_provider.is_completion_trigger(
4090 &buffer,
4091 position.text_anchor,
4092 text,
4093 trigger_in_words,
4094 cx,
4095 )
4096 } else {
4097 false
4098 }
4099 }
4100
4101 /// If any empty selections is touching the start of its innermost containing autoclose
4102 /// region, expand it to select the brackets.
4103 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
4104 let selections = self.selections.all::<usize>(cx);
4105 let buffer = self.buffer.read(cx).read(cx);
4106 let new_selections = self
4107 .selections_with_autoclose_regions(selections, &buffer)
4108 .map(|(mut selection, region)| {
4109 if !selection.is_empty() {
4110 return selection;
4111 }
4112
4113 if let Some(region) = region {
4114 let mut range = region.range.to_offset(&buffer);
4115 if selection.start == range.start && range.start >= region.pair.start.len() {
4116 range.start -= region.pair.start.len();
4117 if buffer.contains_str_at(range.start, ®ion.pair.start)
4118 && buffer.contains_str_at(range.end, ®ion.pair.end)
4119 {
4120 range.end += region.pair.end.len();
4121 selection.start = range.start;
4122 selection.end = range.end;
4123
4124 return selection;
4125 }
4126 }
4127 }
4128
4129 let always_treat_brackets_as_autoclosed = buffer
4130 .settings_at(selection.start, cx)
4131 .always_treat_brackets_as_autoclosed;
4132
4133 if !always_treat_brackets_as_autoclosed {
4134 return selection;
4135 }
4136
4137 if let Some(scope) = buffer.language_scope_at(selection.start) {
4138 for (pair, enabled) in scope.brackets() {
4139 if !enabled || !pair.close {
4140 continue;
4141 }
4142
4143 if buffer.contains_str_at(selection.start, &pair.end) {
4144 let pair_start_len = pair.start.len();
4145 if buffer.contains_str_at(selection.start - pair_start_len, &pair.start)
4146 {
4147 selection.start -= pair_start_len;
4148 selection.end += pair.end.len();
4149
4150 return selection;
4151 }
4152 }
4153 }
4154 }
4155
4156 selection
4157 })
4158 .collect();
4159
4160 drop(buffer);
4161 self.change_selections(None, cx, |selections| selections.select(new_selections));
4162 }
4163
4164 /// Iterate the given selections, and for each one, find the smallest surrounding
4165 /// autoclose region. This uses the ordering of the selections and the autoclose
4166 /// regions to avoid repeated comparisons.
4167 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
4168 &'a self,
4169 selections: impl IntoIterator<Item = Selection<D>>,
4170 buffer: &'a MultiBufferSnapshot,
4171 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
4172 let mut i = 0;
4173 let mut regions = self.autoclose_regions.as_slice();
4174 selections.into_iter().map(move |selection| {
4175 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
4176
4177 let mut enclosing = None;
4178 while let Some(pair_state) = regions.get(i) {
4179 if pair_state.range.end.to_offset(buffer) < range.start {
4180 regions = ®ions[i + 1..];
4181 i = 0;
4182 } else if pair_state.range.start.to_offset(buffer) > range.end {
4183 break;
4184 } else {
4185 if pair_state.selection_id == selection.id {
4186 enclosing = Some(pair_state);
4187 }
4188 i += 1;
4189 }
4190 }
4191
4192 (selection, enclosing)
4193 })
4194 }
4195
4196 /// Remove any autoclose regions that no longer contain their selection.
4197 fn invalidate_autoclose_regions(
4198 &mut self,
4199 mut selections: &[Selection<Anchor>],
4200 buffer: &MultiBufferSnapshot,
4201 ) {
4202 self.autoclose_regions.retain(|state| {
4203 let mut i = 0;
4204 while let Some(selection) = selections.get(i) {
4205 if selection.end.cmp(&state.range.start, buffer).is_lt() {
4206 selections = &selections[1..];
4207 continue;
4208 }
4209 if selection.start.cmp(&state.range.end, buffer).is_gt() {
4210 break;
4211 }
4212 if selection.id == state.selection_id {
4213 return true;
4214 } else {
4215 i += 1;
4216 }
4217 }
4218 false
4219 });
4220 }
4221
4222 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
4223 let offset = position.to_offset(buffer);
4224 let (word_range, kind) = buffer.surrounding_word(offset, true);
4225 if offset > word_range.start && kind == Some(CharKind::Word) {
4226 Some(
4227 buffer
4228 .text_for_range(word_range.start..offset)
4229 .collect::<String>(),
4230 )
4231 } else {
4232 None
4233 }
4234 }
4235
4236 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
4237 self.refresh_inlay_hints(
4238 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
4239 cx,
4240 );
4241 }
4242
4243 pub fn inlay_hints_enabled(&self) -> bool {
4244 self.inlay_hint_cache.enabled
4245 }
4246
4247 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
4248 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
4249 return;
4250 }
4251
4252 let reason_description = reason.description();
4253 let ignore_debounce = matches!(
4254 reason,
4255 InlayHintRefreshReason::SettingsChange(_)
4256 | InlayHintRefreshReason::Toggle(_)
4257 | InlayHintRefreshReason::ExcerptsRemoved(_)
4258 );
4259 let (invalidate_cache, required_languages) = match reason {
4260 InlayHintRefreshReason::Toggle(enabled) => {
4261 self.inlay_hint_cache.enabled = enabled;
4262 if enabled {
4263 (InvalidationStrategy::RefreshRequested, None)
4264 } else {
4265 self.inlay_hint_cache.clear();
4266 self.splice_inlays(
4267 self.visible_inlay_hints(cx)
4268 .iter()
4269 .map(|inlay| inlay.id)
4270 .collect(),
4271 Vec::new(),
4272 cx,
4273 );
4274 return;
4275 }
4276 }
4277 InlayHintRefreshReason::SettingsChange(new_settings) => {
4278 match self.inlay_hint_cache.update_settings(
4279 &self.buffer,
4280 new_settings,
4281 self.visible_inlay_hints(cx),
4282 cx,
4283 ) {
4284 ControlFlow::Break(Some(InlaySplice {
4285 to_remove,
4286 to_insert,
4287 })) => {
4288 self.splice_inlays(to_remove, to_insert, cx);
4289 return;
4290 }
4291 ControlFlow::Break(None) => return,
4292 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
4293 }
4294 }
4295 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
4296 if let Some(InlaySplice {
4297 to_remove,
4298 to_insert,
4299 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
4300 {
4301 self.splice_inlays(to_remove, to_insert, cx);
4302 }
4303 return;
4304 }
4305 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
4306 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
4307 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
4308 }
4309 InlayHintRefreshReason::RefreshRequested => {
4310 (InvalidationStrategy::RefreshRequested, None)
4311 }
4312 };
4313
4314 if let Some(InlaySplice {
4315 to_remove,
4316 to_insert,
4317 }) = self.inlay_hint_cache.spawn_hint_refresh(
4318 reason_description,
4319 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
4320 invalidate_cache,
4321 ignore_debounce,
4322 cx,
4323 ) {
4324 self.splice_inlays(to_remove, to_insert, cx);
4325 }
4326 }
4327
4328 fn visible_inlay_hints(&self, cx: &ViewContext<'_, Editor>) -> Vec<Inlay> {
4329 self.display_map
4330 .read(cx)
4331 .current_inlays()
4332 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
4333 .cloned()
4334 .collect()
4335 }
4336
4337 pub fn excerpts_for_inlay_hints_query(
4338 &self,
4339 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
4340 cx: &mut ViewContext<Editor>,
4341 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
4342 let Some(project) = self.project.as_ref() else {
4343 return HashMap::default();
4344 };
4345 let project = project.read(cx);
4346 let multi_buffer = self.buffer().read(cx);
4347 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
4348 let multi_buffer_visible_start = self
4349 .scroll_manager
4350 .anchor()
4351 .anchor
4352 .to_point(&multi_buffer_snapshot);
4353 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
4354 multi_buffer_visible_start
4355 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
4356 Bias::Left,
4357 );
4358 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
4359 multi_buffer
4360 .range_to_buffer_ranges(multi_buffer_visible_range, cx)
4361 .into_iter()
4362 .filter(|(_, excerpt_visible_range, _)| !excerpt_visible_range.is_empty())
4363 .filter_map(|(buffer_handle, excerpt_visible_range, excerpt_id)| {
4364 let buffer = buffer_handle.read(cx);
4365 let buffer_file = project::File::from_dyn(buffer.file())?;
4366 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
4367 let worktree_entry = buffer_worktree
4368 .read(cx)
4369 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
4370 if worktree_entry.is_ignored {
4371 return None;
4372 }
4373
4374 let language = buffer.language()?;
4375 if let Some(restrict_to_languages) = restrict_to_languages {
4376 if !restrict_to_languages.contains(language) {
4377 return None;
4378 }
4379 }
4380 Some((
4381 excerpt_id,
4382 (
4383 buffer_handle,
4384 buffer.version().clone(),
4385 excerpt_visible_range,
4386 ),
4387 ))
4388 })
4389 .collect()
4390 }
4391
4392 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
4393 TextLayoutDetails {
4394 text_system: cx.text_system().clone(),
4395 editor_style: self.style.clone().unwrap(),
4396 rem_size: cx.rem_size(),
4397 scroll_anchor: self.scroll_manager.anchor(),
4398 visible_rows: self.visible_line_count(),
4399 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
4400 }
4401 }
4402
4403 fn splice_inlays(
4404 &self,
4405 to_remove: Vec<InlayId>,
4406 to_insert: Vec<Inlay>,
4407 cx: &mut ViewContext<Self>,
4408 ) {
4409 self.display_map.update(cx, |display_map, cx| {
4410 display_map.splice_inlays(to_remove, to_insert, cx);
4411 });
4412 cx.notify();
4413 }
4414
4415 fn trigger_on_type_formatting(
4416 &self,
4417 input: String,
4418 cx: &mut ViewContext<Self>,
4419 ) -> Option<Task<Result<()>>> {
4420 if input.len() != 1 {
4421 return None;
4422 }
4423
4424 let project = self.project.as_ref()?;
4425 let position = self.selections.newest_anchor().head();
4426 let (buffer, buffer_position) = self
4427 .buffer
4428 .read(cx)
4429 .text_anchor_for_position(position, cx)?;
4430
4431 let settings = language_settings::language_settings(
4432 buffer
4433 .read(cx)
4434 .language_at(buffer_position)
4435 .map(|l| l.name()),
4436 buffer.read(cx).file(),
4437 cx,
4438 );
4439 if !settings.use_on_type_format {
4440 return None;
4441 }
4442
4443 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
4444 // hence we do LSP request & edit on host side only — add formats to host's history.
4445 let push_to_lsp_host_history = true;
4446 // If this is not the host, append its history with new edits.
4447 let push_to_client_history = project.read(cx).is_via_collab();
4448
4449 let on_type_formatting = project.update(cx, |project, cx| {
4450 project.on_type_format(
4451 buffer.clone(),
4452 buffer_position,
4453 input,
4454 push_to_lsp_host_history,
4455 cx,
4456 )
4457 });
4458 Some(cx.spawn(|editor, mut cx| async move {
4459 if let Some(transaction) = on_type_formatting.await? {
4460 if push_to_client_history {
4461 buffer
4462 .update(&mut cx, |buffer, _| {
4463 buffer.push_transaction(transaction, Instant::now());
4464 })
4465 .ok();
4466 }
4467 editor.update(&mut cx, |editor, cx| {
4468 editor.refresh_document_highlights(cx);
4469 })?;
4470 }
4471 Ok(())
4472 }))
4473 }
4474
4475 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
4476 if self.pending_rename.is_some() {
4477 return;
4478 }
4479
4480 let Some(provider) = self.completion_provider.as_ref() else {
4481 return;
4482 };
4483
4484 if !self.snippet_stack.is_empty() && self.context_menu.read().as_ref().is_some() {
4485 return;
4486 }
4487
4488 let position = self.selections.newest_anchor().head();
4489 let (buffer, buffer_position) =
4490 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
4491 output
4492 } else {
4493 return;
4494 };
4495
4496 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
4497 let is_followup_invoke = {
4498 let context_menu_state = self.context_menu.read();
4499 matches!(
4500 context_menu_state.deref(),
4501 Some(ContextMenu::Completions(_))
4502 )
4503 };
4504 let trigger_kind = match (&options.trigger, is_followup_invoke) {
4505 (_, true) => CompletionTriggerKind::TRIGGER_FOR_INCOMPLETE_COMPLETIONS,
4506 (Some(trigger), _) if buffer.read(cx).completion_triggers().contains(trigger) => {
4507 CompletionTriggerKind::TRIGGER_CHARACTER
4508 }
4509
4510 _ => CompletionTriggerKind::INVOKED,
4511 };
4512 let completion_context = CompletionContext {
4513 trigger_character: options.trigger.as_ref().and_then(|trigger| {
4514 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
4515 Some(String::from(trigger))
4516 } else {
4517 None
4518 }
4519 }),
4520 trigger_kind,
4521 };
4522 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
4523 let sort_completions = provider.sort_completions();
4524
4525 let id = post_inc(&mut self.next_completion_id);
4526 let task = cx.spawn(|this, mut cx| {
4527 async move {
4528 this.update(&mut cx, |this, _| {
4529 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
4530 })?;
4531 let completions = completions.await.log_err();
4532 let menu = if let Some(completions) = completions {
4533 let mut menu = CompletionsMenu::new(
4534 id,
4535 sort_completions,
4536 position,
4537 buffer.clone(),
4538 completions.into(),
4539 );
4540 menu.filter(query.as_deref(), cx.background_executor().clone())
4541 .await;
4542
4543 if menu.matches.is_empty() {
4544 None
4545 } else {
4546 this.update(&mut cx, |editor, cx| {
4547 let completions = menu.completions.clone();
4548 let matches = menu.matches.clone();
4549
4550 let delay_ms = EditorSettings::get_global(cx)
4551 .completion_documentation_secondary_query_debounce;
4552 let delay = Duration::from_millis(delay_ms);
4553 editor
4554 .completion_documentation_pre_resolve_debounce
4555 .fire_new(delay, cx, |editor, cx| {
4556 CompletionsMenu::pre_resolve_completion_documentation(
4557 buffer,
4558 completions,
4559 matches,
4560 editor,
4561 cx,
4562 )
4563 });
4564 })
4565 .ok();
4566 Some(menu)
4567 }
4568 } else {
4569 None
4570 };
4571
4572 this.update(&mut cx, |this, cx| {
4573 let mut context_menu = this.context_menu.write();
4574 match context_menu.as_ref() {
4575 None => {}
4576
4577 Some(ContextMenu::Completions(prev_menu)) => {
4578 if prev_menu.id > id {
4579 return;
4580 }
4581 }
4582
4583 _ => return,
4584 }
4585
4586 if this.focus_handle.is_focused(cx) && menu.is_some() {
4587 let menu = menu.unwrap();
4588 *context_menu = Some(ContextMenu::Completions(menu));
4589 drop(context_menu);
4590 this.discard_inline_completion(false, cx);
4591 cx.notify();
4592 } else if this.completion_tasks.len() <= 1 {
4593 // If there are no more completion tasks and the last menu was
4594 // empty, we should hide it. If it was already hidden, we should
4595 // also show the copilot completion when available.
4596 drop(context_menu);
4597 if this.hide_context_menu(cx).is_none() {
4598 this.update_visible_inline_completion(cx);
4599 }
4600 }
4601 })?;
4602
4603 Ok::<_, anyhow::Error>(())
4604 }
4605 .log_err()
4606 });
4607
4608 self.completion_tasks.push((id, task));
4609 }
4610
4611 pub fn confirm_completion(
4612 &mut self,
4613 action: &ConfirmCompletion,
4614 cx: &mut ViewContext<Self>,
4615 ) -> Option<Task<Result<()>>> {
4616 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
4617 }
4618
4619 pub fn compose_completion(
4620 &mut self,
4621 action: &ComposeCompletion,
4622 cx: &mut ViewContext<Self>,
4623 ) -> Option<Task<Result<()>>> {
4624 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
4625 }
4626
4627 fn do_completion(
4628 &mut self,
4629 item_ix: Option<usize>,
4630 intent: CompletionIntent,
4631 cx: &mut ViewContext<Editor>,
4632 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
4633 use language::ToOffset as _;
4634
4635 let completions_menu = if let ContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
4636 menu
4637 } else {
4638 return None;
4639 };
4640
4641 let mat = completions_menu
4642 .matches
4643 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
4644 let buffer_handle = completions_menu.buffer;
4645 let completions = completions_menu.completions.read();
4646 let completion = completions.get(mat.candidate_id)?;
4647 cx.stop_propagation();
4648
4649 let snippet;
4650 let text;
4651
4652 if completion.is_snippet() {
4653 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
4654 text = snippet.as_ref().unwrap().text.clone();
4655 } else {
4656 snippet = None;
4657 text = completion.new_text.clone();
4658 };
4659 let selections = self.selections.all::<usize>(cx);
4660 let buffer = buffer_handle.read(cx);
4661 let old_range = completion.old_range.to_offset(buffer);
4662 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
4663
4664 let newest_selection = self.selections.newest_anchor();
4665 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
4666 return None;
4667 }
4668
4669 let lookbehind = newest_selection
4670 .start
4671 .text_anchor
4672 .to_offset(buffer)
4673 .saturating_sub(old_range.start);
4674 let lookahead = old_range
4675 .end
4676 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
4677 let mut common_prefix_len = old_text
4678 .bytes()
4679 .zip(text.bytes())
4680 .take_while(|(a, b)| a == b)
4681 .count();
4682
4683 let snapshot = self.buffer.read(cx).snapshot(cx);
4684 let mut range_to_replace: Option<Range<isize>> = None;
4685 let mut ranges = Vec::new();
4686 let mut linked_edits = HashMap::<_, Vec<_>>::default();
4687 for selection in &selections {
4688 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
4689 let start = selection.start.saturating_sub(lookbehind);
4690 let end = selection.end + lookahead;
4691 if selection.id == newest_selection.id {
4692 range_to_replace = Some(
4693 ((start + common_prefix_len) as isize - selection.start as isize)
4694 ..(end as isize - selection.start as isize),
4695 );
4696 }
4697 ranges.push(start + common_prefix_len..end);
4698 } else {
4699 common_prefix_len = 0;
4700 ranges.clear();
4701 ranges.extend(selections.iter().map(|s| {
4702 if s.id == newest_selection.id {
4703 range_to_replace = Some(
4704 old_range.start.to_offset_utf16(&snapshot).0 as isize
4705 - selection.start as isize
4706 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
4707 - selection.start as isize,
4708 );
4709 old_range.clone()
4710 } else {
4711 s.start..s.end
4712 }
4713 }));
4714 break;
4715 }
4716 if !self.linked_edit_ranges.is_empty() {
4717 let start_anchor = snapshot.anchor_before(selection.head());
4718 let end_anchor = snapshot.anchor_after(selection.tail());
4719 if let Some(ranges) = self
4720 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
4721 {
4722 for (buffer, edits) in ranges {
4723 linked_edits.entry(buffer.clone()).or_default().extend(
4724 edits
4725 .into_iter()
4726 .map(|range| (range, text[common_prefix_len..].to_owned())),
4727 );
4728 }
4729 }
4730 }
4731 }
4732 let text = &text[common_prefix_len..];
4733
4734 cx.emit(EditorEvent::InputHandled {
4735 utf16_range_to_replace: range_to_replace,
4736 text: text.into(),
4737 });
4738
4739 self.transact(cx, |this, cx| {
4740 if let Some(mut snippet) = snippet {
4741 snippet.text = text.to_string();
4742 for tabstop in snippet
4743 .tabstops
4744 .iter_mut()
4745 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4746 {
4747 tabstop.start -= common_prefix_len as isize;
4748 tabstop.end -= common_prefix_len as isize;
4749 }
4750
4751 this.insert_snippet(&ranges, snippet, cx).log_err();
4752 } else {
4753 this.buffer.update(cx, |buffer, cx| {
4754 buffer.edit(
4755 ranges.iter().map(|range| (range.clone(), text)),
4756 this.autoindent_mode.clone(),
4757 cx,
4758 );
4759 });
4760 }
4761 for (buffer, edits) in linked_edits {
4762 buffer.update(cx, |buffer, cx| {
4763 let snapshot = buffer.snapshot();
4764 let edits = edits
4765 .into_iter()
4766 .map(|(range, text)| {
4767 use text::ToPoint as TP;
4768 let end_point = TP::to_point(&range.end, &snapshot);
4769 let start_point = TP::to_point(&range.start, &snapshot);
4770 (start_point..end_point, text)
4771 })
4772 .sorted_by_key(|(range, _)| range.start)
4773 .collect::<Vec<_>>();
4774 buffer.edit(edits, None, cx);
4775 })
4776 }
4777
4778 this.refresh_inline_completion(true, false, cx);
4779 });
4780
4781 let show_new_completions_on_confirm = completion
4782 .confirm
4783 .as_ref()
4784 .map_or(false, |confirm| confirm(intent, cx));
4785 if show_new_completions_on_confirm {
4786 self.show_completions(&ShowCompletions { trigger: None }, cx);
4787 }
4788
4789 let provider = self.completion_provider.as_ref()?;
4790 let apply_edits = provider.apply_additional_edits_for_completion(
4791 buffer_handle,
4792 completion.clone(),
4793 true,
4794 cx,
4795 );
4796
4797 let editor_settings = EditorSettings::get_global(cx);
4798 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4799 // After the code completion is finished, users often want to know what signatures are needed.
4800 // so we should automatically call signature_help
4801 self.show_signature_help(&ShowSignatureHelp, cx);
4802 }
4803
4804 Some(cx.foreground_executor().spawn(async move {
4805 apply_edits.await?;
4806 Ok(())
4807 }))
4808 }
4809
4810 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4811 let mut context_menu = self.context_menu.write();
4812 if let Some(ContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4813 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4814 // Toggle if we're selecting the same one
4815 *context_menu = None;
4816 cx.notify();
4817 return;
4818 } else {
4819 // Otherwise, clear it and start a new one
4820 *context_menu = None;
4821 cx.notify();
4822 }
4823 }
4824 drop(context_menu);
4825 let snapshot = self.snapshot(cx);
4826 let deployed_from_indicator = action.deployed_from_indicator;
4827 let mut task = self.code_actions_task.take();
4828 let action = action.clone();
4829 cx.spawn(|editor, mut cx| async move {
4830 while let Some(prev_task) = task {
4831 prev_task.await.log_err();
4832 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4833 }
4834
4835 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4836 if editor.focus_handle.is_focused(cx) {
4837 let multibuffer_point = action
4838 .deployed_from_indicator
4839 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4840 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4841 let (buffer, buffer_row) = snapshot
4842 .buffer_snapshot
4843 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4844 .and_then(|(buffer_snapshot, range)| {
4845 editor
4846 .buffer
4847 .read(cx)
4848 .buffer(buffer_snapshot.remote_id())
4849 .map(|buffer| (buffer, range.start.row))
4850 })?;
4851 let (_, code_actions) = editor
4852 .available_code_actions
4853 .clone()
4854 .and_then(|(location, code_actions)| {
4855 let snapshot = location.buffer.read(cx).snapshot();
4856 let point_range = location.range.to_point(&snapshot);
4857 let point_range = point_range.start.row..=point_range.end.row;
4858 if point_range.contains(&buffer_row) {
4859 Some((location, code_actions))
4860 } else {
4861 None
4862 }
4863 })
4864 .unzip();
4865 let buffer_id = buffer.read(cx).remote_id();
4866 let tasks = editor
4867 .tasks
4868 .get(&(buffer_id, buffer_row))
4869 .map(|t| Arc::new(t.to_owned()));
4870 if tasks.is_none() && code_actions.is_none() {
4871 return None;
4872 }
4873
4874 editor.completion_tasks.clear();
4875 editor.discard_inline_completion(false, cx);
4876 let task_context =
4877 tasks
4878 .as_ref()
4879 .zip(editor.project.clone())
4880 .map(|(tasks, project)| {
4881 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4882 });
4883
4884 Some(cx.spawn(|editor, mut cx| async move {
4885 let task_context = match task_context {
4886 Some(task_context) => task_context.await,
4887 None => None,
4888 };
4889 let resolved_tasks =
4890 tasks.zip(task_context).map(|(tasks, task_context)| {
4891 Arc::new(ResolvedTasks {
4892 templates: tasks.resolve(&task_context).collect(),
4893 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4894 multibuffer_point.row,
4895 tasks.column,
4896 )),
4897 })
4898 });
4899 let spawn_straight_away = resolved_tasks
4900 .as_ref()
4901 .map_or(false, |tasks| tasks.templates.len() == 1)
4902 && code_actions
4903 .as_ref()
4904 .map_or(true, |actions| actions.is_empty());
4905 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4906 *editor.context_menu.write() =
4907 Some(ContextMenu::CodeActions(CodeActionsMenu {
4908 buffer,
4909 actions: CodeActionContents {
4910 tasks: resolved_tasks,
4911 actions: code_actions,
4912 },
4913 selected_item: Default::default(),
4914 scroll_handle: UniformListScrollHandle::default(),
4915 deployed_from_indicator,
4916 }));
4917 if spawn_straight_away {
4918 if let Some(task) = editor.confirm_code_action(
4919 &ConfirmCodeAction { item_ix: Some(0) },
4920 cx,
4921 ) {
4922 cx.notify();
4923 return task;
4924 }
4925 }
4926 cx.notify();
4927 Task::ready(Ok(()))
4928 }) {
4929 task.await
4930 } else {
4931 Ok(())
4932 }
4933 }))
4934 } else {
4935 Some(Task::ready(Ok(())))
4936 }
4937 })?;
4938 if let Some(task) = spawned_test_task {
4939 task.await?;
4940 }
4941
4942 Ok::<_, anyhow::Error>(())
4943 })
4944 .detach_and_log_err(cx);
4945 }
4946
4947 pub fn confirm_code_action(
4948 &mut self,
4949 action: &ConfirmCodeAction,
4950 cx: &mut ViewContext<Self>,
4951 ) -> Option<Task<Result<()>>> {
4952 let actions_menu = if let ContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4953 menu
4954 } else {
4955 return None;
4956 };
4957 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4958 let action = actions_menu.actions.get(action_ix)?;
4959 let title = action.label();
4960 let buffer = actions_menu.buffer;
4961 let workspace = self.workspace()?;
4962
4963 match action {
4964 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4965 workspace.update(cx, |workspace, cx| {
4966 workspace::tasks::schedule_resolved_task(
4967 workspace,
4968 task_source_kind,
4969 resolved_task,
4970 false,
4971 cx,
4972 );
4973
4974 Some(Task::ready(Ok(())))
4975 })
4976 }
4977 CodeActionsItem::CodeAction {
4978 excerpt_id,
4979 action,
4980 provider,
4981 } => {
4982 let apply_code_action =
4983 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4984 let workspace = workspace.downgrade();
4985 Some(cx.spawn(|editor, cx| async move {
4986 let project_transaction = apply_code_action.await?;
4987 Self::open_project_transaction(
4988 &editor,
4989 workspace,
4990 project_transaction,
4991 title,
4992 cx,
4993 )
4994 .await
4995 }))
4996 }
4997 }
4998 }
4999
5000 pub async fn open_project_transaction(
5001 this: &WeakView<Editor>,
5002 workspace: WeakView<Workspace>,
5003 transaction: ProjectTransaction,
5004 title: String,
5005 mut cx: AsyncWindowContext,
5006 ) -> Result<()> {
5007 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
5008 cx.update(|cx| {
5009 entries.sort_unstable_by_key(|(buffer, _)| {
5010 buffer.read(cx).file().map(|f| f.path().clone())
5011 });
5012 })?;
5013
5014 // If the project transaction's edits are all contained within this editor, then
5015 // avoid opening a new editor to display them.
5016
5017 if let Some((buffer, transaction)) = entries.first() {
5018 if entries.len() == 1 {
5019 let excerpt = this.update(&mut cx, |editor, cx| {
5020 editor
5021 .buffer()
5022 .read(cx)
5023 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
5024 })?;
5025 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
5026 if excerpted_buffer == *buffer {
5027 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
5028 let excerpt_range = excerpt_range.to_offset(buffer);
5029 buffer
5030 .edited_ranges_for_transaction::<usize>(transaction)
5031 .all(|range| {
5032 excerpt_range.start <= range.start
5033 && excerpt_range.end >= range.end
5034 })
5035 })?;
5036
5037 if all_edits_within_excerpt {
5038 return Ok(());
5039 }
5040 }
5041 }
5042 }
5043 } else {
5044 return Ok(());
5045 }
5046
5047 let mut ranges_to_highlight = Vec::new();
5048 let excerpt_buffer = cx.new_model(|cx| {
5049 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
5050 for (buffer_handle, transaction) in &entries {
5051 let buffer = buffer_handle.read(cx);
5052 ranges_to_highlight.extend(
5053 multibuffer.push_excerpts_with_context_lines(
5054 buffer_handle.clone(),
5055 buffer
5056 .edited_ranges_for_transaction::<usize>(transaction)
5057 .collect(),
5058 DEFAULT_MULTIBUFFER_CONTEXT,
5059 cx,
5060 ),
5061 );
5062 }
5063 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
5064 multibuffer
5065 })?;
5066
5067 workspace.update(&mut cx, |workspace, cx| {
5068 let project = workspace.project().clone();
5069 let editor =
5070 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
5071 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
5072 editor.update(cx, |editor, cx| {
5073 editor.highlight_background::<Self>(
5074 &ranges_to_highlight,
5075 |theme| theme.editor_highlighted_line_background,
5076 cx,
5077 );
5078 });
5079 })?;
5080
5081 Ok(())
5082 }
5083
5084 pub fn clear_code_action_providers(&mut self) {
5085 self.code_action_providers.clear();
5086 self.available_code_actions.take();
5087 }
5088
5089 pub fn push_code_action_provider(
5090 &mut self,
5091 provider: Arc<dyn CodeActionProvider>,
5092 cx: &mut ViewContext<Self>,
5093 ) {
5094 self.code_action_providers.push(provider);
5095 self.refresh_code_actions(cx);
5096 }
5097
5098 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5099 let buffer = self.buffer.read(cx);
5100 let newest_selection = self.selections.newest_anchor().clone();
5101 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
5102 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
5103 if start_buffer != end_buffer {
5104 return None;
5105 }
5106
5107 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
5108 cx.background_executor()
5109 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
5110 .await;
5111
5112 let (providers, tasks) = this.update(&mut cx, |this, cx| {
5113 let providers = this.code_action_providers.clone();
5114 let tasks = this
5115 .code_action_providers
5116 .iter()
5117 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
5118 .collect::<Vec<_>>();
5119 (providers, tasks)
5120 })?;
5121
5122 let mut actions = Vec::new();
5123 for (provider, provider_actions) in
5124 providers.into_iter().zip(future::join_all(tasks).await)
5125 {
5126 if let Some(provider_actions) = provider_actions.log_err() {
5127 actions.extend(provider_actions.into_iter().map(|action| {
5128 AvailableCodeAction {
5129 excerpt_id: newest_selection.start.excerpt_id,
5130 action,
5131 provider: provider.clone(),
5132 }
5133 }));
5134 }
5135 }
5136
5137 this.update(&mut cx, |this, cx| {
5138 this.available_code_actions = if actions.is_empty() {
5139 None
5140 } else {
5141 Some((
5142 Location {
5143 buffer: start_buffer,
5144 range: start..end,
5145 },
5146 actions.into(),
5147 ))
5148 };
5149 cx.notify();
5150 })
5151 }));
5152 None
5153 }
5154
5155 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
5156 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
5157 self.show_git_blame_inline = false;
5158
5159 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
5160 cx.background_executor().timer(delay).await;
5161
5162 this.update(&mut cx, |this, cx| {
5163 this.show_git_blame_inline = true;
5164 cx.notify();
5165 })
5166 .log_err();
5167 }));
5168 }
5169 }
5170
5171 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
5172 if self.pending_rename.is_some() {
5173 return None;
5174 }
5175
5176 let provider = self.semantics_provider.clone()?;
5177 let buffer = self.buffer.read(cx);
5178 let newest_selection = self.selections.newest_anchor().clone();
5179 let cursor_position = newest_selection.head();
5180 let (cursor_buffer, cursor_buffer_position) =
5181 buffer.text_anchor_for_position(cursor_position, cx)?;
5182 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
5183 if cursor_buffer != tail_buffer {
5184 return None;
5185 }
5186
5187 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
5188 cx.background_executor()
5189 .timer(DOCUMENT_HIGHLIGHTS_DEBOUNCE_TIMEOUT)
5190 .await;
5191
5192 let highlights = if let Some(highlights) = cx
5193 .update(|cx| {
5194 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
5195 })
5196 .ok()
5197 .flatten()
5198 {
5199 highlights.await.log_err()
5200 } else {
5201 None
5202 };
5203
5204 if let Some(highlights) = highlights {
5205 this.update(&mut cx, |this, cx| {
5206 if this.pending_rename.is_some() {
5207 return;
5208 }
5209
5210 let buffer_id = cursor_position.buffer_id;
5211 let buffer = this.buffer.read(cx);
5212 if !buffer
5213 .text_anchor_for_position(cursor_position, cx)
5214 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
5215 {
5216 return;
5217 }
5218
5219 let cursor_buffer_snapshot = cursor_buffer.read(cx);
5220 let mut write_ranges = Vec::new();
5221 let mut read_ranges = Vec::new();
5222 for highlight in highlights {
5223 for (excerpt_id, excerpt_range) in
5224 buffer.excerpts_for_buffer(&cursor_buffer, cx)
5225 {
5226 let start = highlight
5227 .range
5228 .start
5229 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
5230 let end = highlight
5231 .range
5232 .end
5233 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
5234 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
5235 continue;
5236 }
5237
5238 let range = Anchor {
5239 buffer_id,
5240 excerpt_id,
5241 text_anchor: start,
5242 }..Anchor {
5243 buffer_id,
5244 excerpt_id,
5245 text_anchor: end,
5246 };
5247 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
5248 write_ranges.push(range);
5249 } else {
5250 read_ranges.push(range);
5251 }
5252 }
5253 }
5254
5255 this.highlight_background::<DocumentHighlightRead>(
5256 &read_ranges,
5257 |theme| theme.editor_document_highlight_read_background,
5258 cx,
5259 );
5260 this.highlight_background::<DocumentHighlightWrite>(
5261 &write_ranges,
5262 |theme| theme.editor_document_highlight_write_background,
5263 cx,
5264 );
5265 cx.notify();
5266 })
5267 .log_err();
5268 }
5269 }));
5270 None
5271 }
5272
5273 pub fn refresh_inline_completion(
5274 &mut self,
5275 debounce: bool,
5276 user_requested: bool,
5277 cx: &mut ViewContext<Self>,
5278 ) -> Option<()> {
5279 let provider = self.inline_completion_provider()?;
5280 let cursor = self.selections.newest_anchor().head();
5281 let (buffer, cursor_buffer_position) =
5282 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5283
5284 if !user_requested
5285 && (!self.enable_inline_completions
5286 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx))
5287 {
5288 self.discard_inline_completion(false, cx);
5289 return None;
5290 }
5291
5292 self.update_visible_inline_completion(cx);
5293 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
5294 Some(())
5295 }
5296
5297 fn cycle_inline_completion(
5298 &mut self,
5299 direction: Direction,
5300 cx: &mut ViewContext<Self>,
5301 ) -> Option<()> {
5302 let provider = self.inline_completion_provider()?;
5303 let cursor = self.selections.newest_anchor().head();
5304 let (buffer, cursor_buffer_position) =
5305 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
5306 if !self.enable_inline_completions
5307 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
5308 {
5309 return None;
5310 }
5311
5312 provider.cycle(buffer, cursor_buffer_position, direction, cx);
5313 self.update_visible_inline_completion(cx);
5314
5315 Some(())
5316 }
5317
5318 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
5319 if !self.has_active_inline_completion(cx) {
5320 self.refresh_inline_completion(false, true, cx);
5321 return;
5322 }
5323
5324 self.update_visible_inline_completion(cx);
5325 }
5326
5327 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
5328 self.show_cursor_names(cx);
5329 }
5330
5331 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
5332 self.show_cursor_names = true;
5333 cx.notify();
5334 cx.spawn(|this, mut cx| async move {
5335 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
5336 this.update(&mut cx, |this, cx| {
5337 this.show_cursor_names = false;
5338 cx.notify()
5339 })
5340 .ok()
5341 })
5342 .detach();
5343 }
5344
5345 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
5346 if self.has_active_inline_completion(cx) {
5347 self.cycle_inline_completion(Direction::Next, cx);
5348 } else {
5349 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5350 if is_copilot_disabled {
5351 cx.propagate();
5352 }
5353 }
5354 }
5355
5356 pub fn previous_inline_completion(
5357 &mut self,
5358 _: &PreviousInlineCompletion,
5359 cx: &mut ViewContext<Self>,
5360 ) {
5361 if self.has_active_inline_completion(cx) {
5362 self.cycle_inline_completion(Direction::Prev, cx);
5363 } else {
5364 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
5365 if is_copilot_disabled {
5366 cx.propagate();
5367 }
5368 }
5369 }
5370
5371 pub fn accept_inline_completion(
5372 &mut self,
5373 _: &AcceptInlineCompletion,
5374 cx: &mut ViewContext<Self>,
5375 ) {
5376 let Some(completion) = self.take_active_inline_completion(cx) else {
5377 return;
5378 };
5379 if let Some(provider) = self.inline_completion_provider() {
5380 provider.accept(cx);
5381 }
5382
5383 cx.emit(EditorEvent::InputHandled {
5384 utf16_range_to_replace: None,
5385 text: completion.text.to_string().into(),
5386 });
5387
5388 if let Some(range) = completion.delete_range {
5389 self.change_selections(None, cx, |s| s.select_ranges([range]))
5390 }
5391 self.insert_with_autoindent_mode(&completion.text.to_string(), None, cx);
5392 self.refresh_inline_completion(true, true, cx);
5393 cx.notify();
5394 }
5395
5396 pub fn accept_partial_inline_completion(
5397 &mut self,
5398 _: &AcceptPartialInlineCompletion,
5399 cx: &mut ViewContext<Self>,
5400 ) {
5401 if self.selections.count() == 1 && self.has_active_inline_completion(cx) {
5402 if let Some(completion) = self.take_active_inline_completion(cx) {
5403 let mut partial_completion = completion
5404 .text
5405 .chars()
5406 .by_ref()
5407 .take_while(|c| c.is_alphabetic())
5408 .collect::<String>();
5409 if partial_completion.is_empty() {
5410 partial_completion = completion
5411 .text
5412 .chars()
5413 .by_ref()
5414 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
5415 .collect::<String>();
5416 }
5417
5418 cx.emit(EditorEvent::InputHandled {
5419 utf16_range_to_replace: None,
5420 text: partial_completion.clone().into(),
5421 });
5422
5423 if let Some(range) = completion.delete_range {
5424 self.change_selections(None, cx, |s| s.select_ranges([range]))
5425 }
5426 self.insert_with_autoindent_mode(&partial_completion, None, cx);
5427
5428 self.refresh_inline_completion(true, true, cx);
5429 cx.notify();
5430 }
5431 }
5432 }
5433
5434 fn discard_inline_completion(
5435 &mut self,
5436 should_report_inline_completion_event: bool,
5437 cx: &mut ViewContext<Self>,
5438 ) -> bool {
5439 if let Some(provider) = self.inline_completion_provider() {
5440 provider.discard(should_report_inline_completion_event, cx);
5441 }
5442
5443 self.take_active_inline_completion(cx).is_some()
5444 }
5445
5446 pub fn has_active_inline_completion(&self, cx: &AppContext) -> bool {
5447 if let Some(completion) = self.active_inline_completion.as_ref() {
5448 let buffer = self.buffer.read(cx).read(cx);
5449 completion.position.is_valid(&buffer)
5450 } else {
5451 false
5452 }
5453 }
5454
5455 fn take_active_inline_completion(
5456 &mut self,
5457 cx: &mut ViewContext<Self>,
5458 ) -> Option<CompletionState> {
5459 let completion = self.active_inline_completion.take()?;
5460 let render_inlay_ids = completion.render_inlay_ids.clone();
5461 self.display_map.update(cx, |map, cx| {
5462 map.splice_inlays(render_inlay_ids, Default::default(), cx);
5463 });
5464 let buffer = self.buffer.read(cx).read(cx);
5465
5466 if completion.position.is_valid(&buffer) {
5467 Some(completion)
5468 } else {
5469 None
5470 }
5471 }
5472
5473 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) {
5474 let selection = self.selections.newest_anchor();
5475 let cursor = selection.head();
5476
5477 let excerpt_id = cursor.excerpt_id;
5478
5479 if self.context_menu.read().is_none()
5480 && self.completion_tasks.is_empty()
5481 && selection.start == selection.end
5482 {
5483 if let Some(provider) = self.inline_completion_provider() {
5484 if let Some((buffer, cursor_buffer_position)) =
5485 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
5486 {
5487 if let Some(proposal) =
5488 provider.active_completion_text(&buffer, cursor_buffer_position, cx)
5489 {
5490 let mut to_remove = Vec::new();
5491 if let Some(completion) = self.active_inline_completion.take() {
5492 to_remove.extend(completion.render_inlay_ids.iter());
5493 }
5494
5495 let to_add = proposal
5496 .inlays
5497 .iter()
5498 .filter_map(|inlay| {
5499 let snapshot = self.buffer.read(cx).snapshot(cx);
5500 let id = post_inc(&mut self.next_inlay_id);
5501 match inlay {
5502 InlayProposal::Hint(position, hint) => {
5503 let position =
5504 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5505 Some(Inlay::hint(id, position, hint))
5506 }
5507 InlayProposal::Suggestion(position, text) => {
5508 let position =
5509 snapshot.anchor_in_excerpt(excerpt_id, *position)?;
5510 Some(Inlay::suggestion(id, position, text.clone()))
5511 }
5512 }
5513 })
5514 .collect_vec();
5515
5516 self.active_inline_completion = Some(CompletionState {
5517 position: cursor,
5518 text: proposal.text,
5519 delete_range: proposal.delete_range.and_then(|range| {
5520 let snapshot = self.buffer.read(cx).snapshot(cx);
5521 let start = snapshot.anchor_in_excerpt(excerpt_id, range.start);
5522 let end = snapshot.anchor_in_excerpt(excerpt_id, range.end);
5523 Some(start?..end?)
5524 }),
5525 render_inlay_ids: to_add.iter().map(|i| i.id).collect(),
5526 });
5527
5528 self.display_map
5529 .update(cx, move |map, cx| map.splice_inlays(to_remove, to_add, cx));
5530
5531 cx.notify();
5532 return;
5533 }
5534 }
5535 }
5536 }
5537
5538 self.discard_inline_completion(false, cx);
5539 }
5540
5541 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5542 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5543 }
5544
5545 fn render_code_actions_indicator(
5546 &self,
5547 _style: &EditorStyle,
5548 row: DisplayRow,
5549 is_active: bool,
5550 cx: &mut ViewContext<Self>,
5551 ) -> Option<IconButton> {
5552 if self.available_code_actions.is_some() {
5553 Some(
5554 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5555 .shape(ui::IconButtonShape::Square)
5556 .icon_size(IconSize::XSmall)
5557 .icon_color(Color::Muted)
5558 .selected(is_active)
5559 .tooltip({
5560 let focus_handle = self.focus_handle.clone();
5561 move |cx| {
5562 Tooltip::for_action_in(
5563 "Toggle Code Actions",
5564 &ToggleCodeActions {
5565 deployed_from_indicator: None,
5566 },
5567 &focus_handle,
5568 cx,
5569 )
5570 }
5571 })
5572 .on_click(cx.listener(move |editor, _e, cx| {
5573 editor.focus(cx);
5574 editor.toggle_code_actions(
5575 &ToggleCodeActions {
5576 deployed_from_indicator: Some(row),
5577 },
5578 cx,
5579 );
5580 })),
5581 )
5582 } else {
5583 None
5584 }
5585 }
5586
5587 fn clear_tasks(&mut self) {
5588 self.tasks.clear()
5589 }
5590
5591 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5592 if self.tasks.insert(key, value).is_some() {
5593 // This case should hopefully be rare, but just in case...
5594 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5595 }
5596 }
5597
5598 fn build_tasks_context(
5599 project: &Model<Project>,
5600 buffer: &Model<Buffer>,
5601 buffer_row: u32,
5602 tasks: &Arc<RunnableTasks>,
5603 cx: &mut ViewContext<Self>,
5604 ) -> Task<Option<task::TaskContext>> {
5605 let position = Point::new(buffer_row, tasks.column);
5606 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5607 let location = Location {
5608 buffer: buffer.clone(),
5609 range: range_start..range_start,
5610 };
5611 // Fill in the environmental variables from the tree-sitter captures
5612 let mut captured_task_variables = TaskVariables::default();
5613 for (capture_name, value) in tasks.extra_variables.clone() {
5614 captured_task_variables.insert(
5615 task::VariableName::Custom(capture_name.into()),
5616 value.clone(),
5617 );
5618 }
5619 project.update(cx, |project, cx| {
5620 project.task_store().update(cx, |task_store, cx| {
5621 task_store.task_context_for_location(captured_task_variables, location, cx)
5622 })
5623 })
5624 }
5625
5626 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5627 let Some((workspace, _)) = self.workspace.clone() else {
5628 return;
5629 };
5630 let Some(project) = self.project.clone() else {
5631 return;
5632 };
5633
5634 // Try to find a closest, enclosing node using tree-sitter that has a
5635 // task
5636 let Some((buffer, buffer_row, tasks)) = self
5637 .find_enclosing_node_task(cx)
5638 // Or find the task that's closest in row-distance.
5639 .or_else(|| self.find_closest_task(cx))
5640 else {
5641 return;
5642 };
5643
5644 let reveal_strategy = action.reveal;
5645 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5646 cx.spawn(|_, mut cx| async move {
5647 let context = task_context.await?;
5648 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5649
5650 let resolved = resolved_task.resolved.as_mut()?;
5651 resolved.reveal = reveal_strategy;
5652
5653 workspace
5654 .update(&mut cx, |workspace, cx| {
5655 workspace::tasks::schedule_resolved_task(
5656 workspace,
5657 task_source_kind,
5658 resolved_task,
5659 false,
5660 cx,
5661 );
5662 })
5663 .ok()
5664 })
5665 .detach();
5666 }
5667
5668 fn find_closest_task(
5669 &mut self,
5670 cx: &mut ViewContext<Self>,
5671 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5672 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5673
5674 let ((buffer_id, row), tasks) = self
5675 .tasks
5676 .iter()
5677 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5678
5679 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5680 let tasks = Arc::new(tasks.to_owned());
5681 Some((buffer, *row, tasks))
5682 }
5683
5684 fn find_enclosing_node_task(
5685 &mut self,
5686 cx: &mut ViewContext<Self>,
5687 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5688 let snapshot = self.buffer.read(cx).snapshot(cx);
5689 let offset = self.selections.newest::<usize>(cx).head();
5690 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5691 let buffer_id = excerpt.buffer().remote_id();
5692
5693 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5694 let mut cursor = layer.node().walk();
5695
5696 while cursor.goto_first_child_for_byte(offset).is_some() {
5697 if cursor.node().end_byte() == offset {
5698 cursor.goto_next_sibling();
5699 }
5700 }
5701
5702 // Ascend to the smallest ancestor that contains the range and has a task.
5703 loop {
5704 let node = cursor.node();
5705 let node_range = node.byte_range();
5706 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5707
5708 // Check if this node contains our offset
5709 if node_range.start <= offset && node_range.end >= offset {
5710 // If it contains offset, check for task
5711 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5712 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5713 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5714 }
5715 }
5716
5717 if !cursor.goto_parent() {
5718 break;
5719 }
5720 }
5721 None
5722 }
5723
5724 fn render_run_indicator(
5725 &self,
5726 _style: &EditorStyle,
5727 is_active: bool,
5728 row: DisplayRow,
5729 cx: &mut ViewContext<Self>,
5730 ) -> IconButton {
5731 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5732 .shape(ui::IconButtonShape::Square)
5733 .icon_size(IconSize::XSmall)
5734 .icon_color(Color::Muted)
5735 .selected(is_active)
5736 .on_click(cx.listener(move |editor, _e, cx| {
5737 editor.focus(cx);
5738 editor.toggle_code_actions(
5739 &ToggleCodeActions {
5740 deployed_from_indicator: Some(row),
5741 },
5742 cx,
5743 );
5744 }))
5745 }
5746
5747 pub fn context_menu_visible(&self) -> bool {
5748 self.context_menu
5749 .read()
5750 .as_ref()
5751 .map_or(false, |menu| menu.visible())
5752 }
5753
5754 fn render_context_menu(
5755 &self,
5756 cursor_position: DisplayPoint,
5757 style: &EditorStyle,
5758 max_height: Pixels,
5759 cx: &mut ViewContext<Editor>,
5760 ) -> Option<(ContextMenuOrigin, AnyElement)> {
5761 self.context_menu.read().as_ref().map(|menu| {
5762 menu.render(
5763 cursor_position,
5764 style,
5765 max_height,
5766 self.workspace.as_ref().map(|(w, _)| w.clone()),
5767 cx,
5768 )
5769 })
5770 }
5771
5772 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<ContextMenu> {
5773 cx.notify();
5774 self.completion_tasks.clear();
5775 let context_menu = self.context_menu.write().take();
5776 if context_menu.is_some() {
5777 self.update_visible_inline_completion(cx);
5778 }
5779 context_menu
5780 }
5781
5782 fn show_snippet_choices(
5783 &mut self,
5784 choices: &Vec<String>,
5785 selection: Range<Anchor>,
5786 cx: &mut ViewContext<Self>,
5787 ) {
5788 if selection.start.buffer_id.is_none() {
5789 return;
5790 }
5791 let buffer_id = selection.start.buffer_id.unwrap();
5792 let buffer = self.buffer().read(cx).buffer(buffer_id);
5793 let id = post_inc(&mut self.next_completion_id);
5794
5795 if let Some(buffer) = buffer {
5796 *self.context_menu.write() = Some(ContextMenu::Completions(
5797 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer)
5798 .suppress_documentation_resolution(),
5799 ));
5800 }
5801 }
5802
5803 pub fn insert_snippet(
5804 &mut self,
5805 insertion_ranges: &[Range<usize>],
5806 snippet: Snippet,
5807 cx: &mut ViewContext<Self>,
5808 ) -> Result<()> {
5809 struct Tabstop<T> {
5810 is_end_tabstop: bool,
5811 ranges: Vec<Range<T>>,
5812 choices: Option<Vec<String>>,
5813 }
5814
5815 let tabstops = self.buffer.update(cx, |buffer, cx| {
5816 let snippet_text: Arc<str> = snippet.text.clone().into();
5817 buffer.edit(
5818 insertion_ranges
5819 .iter()
5820 .cloned()
5821 .map(|range| (range, snippet_text.clone())),
5822 Some(AutoindentMode::EachLine),
5823 cx,
5824 );
5825
5826 let snapshot = &*buffer.read(cx);
5827 let snippet = &snippet;
5828 snippet
5829 .tabstops
5830 .iter()
5831 .map(|tabstop| {
5832 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5833 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5834 });
5835 let mut tabstop_ranges = tabstop
5836 .ranges
5837 .iter()
5838 .flat_map(|tabstop_range| {
5839 let mut delta = 0_isize;
5840 insertion_ranges.iter().map(move |insertion_range| {
5841 let insertion_start = insertion_range.start as isize + delta;
5842 delta +=
5843 snippet.text.len() as isize - insertion_range.len() as isize;
5844
5845 let start = ((insertion_start + tabstop_range.start) as usize)
5846 .min(snapshot.len());
5847 let end = ((insertion_start + tabstop_range.end) as usize)
5848 .min(snapshot.len());
5849 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5850 })
5851 })
5852 .collect::<Vec<_>>();
5853 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5854
5855 Tabstop {
5856 is_end_tabstop,
5857 ranges: tabstop_ranges,
5858 choices: tabstop.choices.clone(),
5859 }
5860 })
5861 .collect::<Vec<_>>()
5862 });
5863 if let Some(tabstop) = tabstops.first() {
5864 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5865 s.select_ranges(tabstop.ranges.iter().cloned());
5866 });
5867
5868 if let Some(choices) = &tabstop.choices {
5869 if let Some(selection) = tabstop.ranges.first() {
5870 self.show_snippet_choices(choices, selection.clone(), cx)
5871 }
5872 }
5873
5874 // If we're already at the last tabstop and it's at the end of the snippet,
5875 // we're done, we don't need to keep the state around.
5876 if !tabstop.is_end_tabstop {
5877 let choices = tabstops
5878 .iter()
5879 .map(|tabstop| tabstop.choices.clone())
5880 .collect();
5881
5882 let ranges = tabstops
5883 .into_iter()
5884 .map(|tabstop| tabstop.ranges)
5885 .collect::<Vec<_>>();
5886
5887 self.snippet_stack.push(SnippetState {
5888 active_index: 0,
5889 ranges,
5890 choices,
5891 });
5892 }
5893
5894 // Check whether the just-entered snippet ends with an auto-closable bracket.
5895 if self.autoclose_regions.is_empty() {
5896 let snapshot = self.buffer.read(cx).snapshot(cx);
5897 for selection in &mut self.selections.all::<Point>(cx) {
5898 let selection_head = selection.head();
5899 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5900 continue;
5901 };
5902
5903 let mut bracket_pair = None;
5904 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5905 let prev_chars = snapshot
5906 .reversed_chars_at(selection_head)
5907 .collect::<String>();
5908 for (pair, enabled) in scope.brackets() {
5909 if enabled
5910 && pair.close
5911 && prev_chars.starts_with(pair.start.as_str())
5912 && next_chars.starts_with(pair.end.as_str())
5913 {
5914 bracket_pair = Some(pair.clone());
5915 break;
5916 }
5917 }
5918 if let Some(pair) = bracket_pair {
5919 let start = snapshot.anchor_after(selection_head);
5920 let end = snapshot.anchor_after(selection_head);
5921 self.autoclose_regions.push(AutocloseRegion {
5922 selection_id: selection.id,
5923 range: start..end,
5924 pair,
5925 });
5926 }
5927 }
5928 }
5929 }
5930 Ok(())
5931 }
5932
5933 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5934 self.move_to_snippet_tabstop(Bias::Right, cx)
5935 }
5936
5937 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5938 self.move_to_snippet_tabstop(Bias::Left, cx)
5939 }
5940
5941 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5942 if let Some(mut snippet) = self.snippet_stack.pop() {
5943 match bias {
5944 Bias::Left => {
5945 if snippet.active_index > 0 {
5946 snippet.active_index -= 1;
5947 } else {
5948 self.snippet_stack.push(snippet);
5949 return false;
5950 }
5951 }
5952 Bias::Right => {
5953 if snippet.active_index + 1 < snippet.ranges.len() {
5954 snippet.active_index += 1;
5955 } else {
5956 self.snippet_stack.push(snippet);
5957 return false;
5958 }
5959 }
5960 }
5961 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5962 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5963 s.select_anchor_ranges(current_ranges.iter().cloned())
5964 });
5965
5966 if let Some(choices) = &snippet.choices[snippet.active_index] {
5967 if let Some(selection) = current_ranges.first() {
5968 self.show_snippet_choices(&choices, selection.clone(), cx);
5969 }
5970 }
5971
5972 // If snippet state is not at the last tabstop, push it back on the stack
5973 if snippet.active_index + 1 < snippet.ranges.len() {
5974 self.snippet_stack.push(snippet);
5975 }
5976 return true;
5977 }
5978 }
5979
5980 false
5981 }
5982
5983 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5984 self.transact(cx, |this, cx| {
5985 this.select_all(&SelectAll, cx);
5986 this.insert("", cx);
5987 });
5988 }
5989
5990 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5991 self.transact(cx, |this, cx| {
5992 this.select_autoclose_pair(cx);
5993 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5994 if !this.linked_edit_ranges.is_empty() {
5995 let selections = this.selections.all::<MultiBufferPoint>(cx);
5996 let snapshot = this.buffer.read(cx).snapshot(cx);
5997
5998 for selection in selections.iter() {
5999 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
6000 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
6001 if selection_start.buffer_id != selection_end.buffer_id {
6002 continue;
6003 }
6004 if let Some(ranges) =
6005 this.linked_editing_ranges_for(selection_start..selection_end, cx)
6006 {
6007 for (buffer, entries) in ranges {
6008 linked_ranges.entry(buffer).or_default().extend(entries);
6009 }
6010 }
6011 }
6012 }
6013
6014 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
6015 if !this.selections.line_mode {
6016 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
6017 for selection in &mut selections {
6018 if selection.is_empty() {
6019 let old_head = selection.head();
6020 let mut new_head =
6021 movement::left(&display_map, old_head.to_display_point(&display_map))
6022 .to_point(&display_map);
6023 if let Some((buffer, line_buffer_range)) = display_map
6024 .buffer_snapshot
6025 .buffer_line_for_row(MultiBufferRow(old_head.row))
6026 {
6027 let indent_size =
6028 buffer.indent_size_for_line(line_buffer_range.start.row);
6029 let indent_len = match indent_size.kind {
6030 IndentKind::Space => {
6031 buffer.settings_at(line_buffer_range.start, cx).tab_size
6032 }
6033 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
6034 };
6035 if old_head.column <= indent_size.len && old_head.column > 0 {
6036 let indent_len = indent_len.get();
6037 new_head = cmp::min(
6038 new_head,
6039 MultiBufferPoint::new(
6040 old_head.row,
6041 ((old_head.column - 1) / indent_len) * indent_len,
6042 ),
6043 );
6044 }
6045 }
6046
6047 selection.set_head(new_head, SelectionGoal::None);
6048 }
6049 }
6050 }
6051
6052 this.signature_help_state.set_backspace_pressed(true);
6053 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6054 this.insert("", cx);
6055 let empty_str: Arc<str> = Arc::from("");
6056 for (buffer, edits) in linked_ranges {
6057 let snapshot = buffer.read(cx).snapshot();
6058 use text::ToPoint as TP;
6059
6060 let edits = edits
6061 .into_iter()
6062 .map(|range| {
6063 let end_point = TP::to_point(&range.end, &snapshot);
6064 let mut start_point = TP::to_point(&range.start, &snapshot);
6065
6066 if end_point == start_point {
6067 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
6068 .saturating_sub(1);
6069 start_point = TP::to_point(&offset, &snapshot);
6070 };
6071
6072 (start_point..end_point, empty_str.clone())
6073 })
6074 .sorted_by_key(|(range, _)| range.start)
6075 .collect::<Vec<_>>();
6076 buffer.update(cx, |this, cx| {
6077 this.edit(edits, None, cx);
6078 })
6079 }
6080 this.refresh_inline_completion(true, false, cx);
6081 linked_editing_ranges::refresh_linked_ranges(this, cx);
6082 });
6083 }
6084
6085 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
6086 self.transact(cx, |this, cx| {
6087 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6088 let line_mode = s.line_mode;
6089 s.move_with(|map, selection| {
6090 if selection.is_empty() && !line_mode {
6091 let cursor = movement::right(map, selection.head());
6092 selection.end = cursor;
6093 selection.reversed = true;
6094 selection.goal = SelectionGoal::None;
6095 }
6096 })
6097 });
6098 this.insert("", cx);
6099 this.refresh_inline_completion(true, false, cx);
6100 });
6101 }
6102
6103 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
6104 if self.move_to_prev_snippet_tabstop(cx) {
6105 return;
6106 }
6107
6108 self.outdent(&Outdent, cx);
6109 }
6110
6111 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
6112 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
6113 return;
6114 }
6115
6116 let mut selections = self.selections.all_adjusted(cx);
6117 let buffer = self.buffer.read(cx);
6118 let snapshot = buffer.snapshot(cx);
6119 let rows_iter = selections.iter().map(|s| s.head().row);
6120 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
6121
6122 let mut edits = Vec::new();
6123 let mut prev_edited_row = 0;
6124 let mut row_delta = 0;
6125 for selection in &mut selections {
6126 if selection.start.row != prev_edited_row {
6127 row_delta = 0;
6128 }
6129 prev_edited_row = selection.end.row;
6130
6131 // If the selection is non-empty, then increase the indentation of the selected lines.
6132 if !selection.is_empty() {
6133 row_delta =
6134 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
6135 continue;
6136 }
6137
6138 // If the selection is empty and the cursor is in the leading whitespace before the
6139 // suggested indentation, then auto-indent the line.
6140 let cursor = selection.head();
6141 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
6142 if let Some(suggested_indent) =
6143 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
6144 {
6145 if cursor.column < suggested_indent.len
6146 && cursor.column <= current_indent.len
6147 && current_indent.len <= suggested_indent.len
6148 {
6149 selection.start = Point::new(cursor.row, suggested_indent.len);
6150 selection.end = selection.start;
6151 if row_delta == 0 {
6152 edits.extend(Buffer::edit_for_indent_size_adjustment(
6153 cursor.row,
6154 current_indent,
6155 suggested_indent,
6156 ));
6157 row_delta = suggested_indent.len - current_indent.len;
6158 }
6159 continue;
6160 }
6161 }
6162
6163 // Otherwise, insert a hard or soft tab.
6164 let settings = buffer.settings_at(cursor, cx);
6165 let tab_size = if settings.hard_tabs {
6166 IndentSize::tab()
6167 } else {
6168 let tab_size = settings.tab_size.get();
6169 let char_column = snapshot
6170 .text_for_range(Point::new(cursor.row, 0)..cursor)
6171 .flat_map(str::chars)
6172 .count()
6173 + row_delta as usize;
6174 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
6175 IndentSize::spaces(chars_to_next_tab_stop)
6176 };
6177 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
6178 selection.end = selection.start;
6179 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
6180 row_delta += tab_size.len;
6181 }
6182
6183 self.transact(cx, |this, cx| {
6184 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
6185 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6186 this.refresh_inline_completion(true, false, cx);
6187 });
6188 }
6189
6190 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
6191 if self.read_only(cx) {
6192 return;
6193 }
6194 let mut selections = self.selections.all::<Point>(cx);
6195 let mut prev_edited_row = 0;
6196 let mut row_delta = 0;
6197 let mut edits = Vec::new();
6198 let buffer = self.buffer.read(cx);
6199 let snapshot = buffer.snapshot(cx);
6200 for selection in &mut selections {
6201 if selection.start.row != prev_edited_row {
6202 row_delta = 0;
6203 }
6204 prev_edited_row = selection.end.row;
6205
6206 row_delta =
6207 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
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 });
6214 }
6215
6216 fn indent_selection(
6217 buffer: &MultiBuffer,
6218 snapshot: &MultiBufferSnapshot,
6219 selection: &mut Selection<Point>,
6220 edits: &mut Vec<(Range<Point>, String)>,
6221 delta_for_start_row: u32,
6222 cx: &AppContext,
6223 ) -> u32 {
6224 let settings = buffer.settings_at(selection.start, cx);
6225 let tab_size = settings.tab_size.get();
6226 let indent_kind = if settings.hard_tabs {
6227 IndentKind::Tab
6228 } else {
6229 IndentKind::Space
6230 };
6231 let mut start_row = selection.start.row;
6232 let mut end_row = selection.end.row + 1;
6233
6234 // If a selection ends at the beginning of a line, don't indent
6235 // that last line.
6236 if selection.end.column == 0 && selection.end.row > selection.start.row {
6237 end_row -= 1;
6238 }
6239
6240 // Avoid re-indenting a row that has already been indented by a
6241 // previous selection, but still update this selection's column
6242 // to reflect that indentation.
6243 if delta_for_start_row > 0 {
6244 start_row += 1;
6245 selection.start.column += delta_for_start_row;
6246 if selection.end.row == selection.start.row {
6247 selection.end.column += delta_for_start_row;
6248 }
6249 }
6250
6251 let mut delta_for_end_row = 0;
6252 let has_multiple_rows = start_row + 1 != end_row;
6253 for row in start_row..end_row {
6254 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
6255 let indent_delta = match (current_indent.kind, indent_kind) {
6256 (IndentKind::Space, IndentKind::Space) => {
6257 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
6258 IndentSize::spaces(columns_to_next_tab_stop)
6259 }
6260 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
6261 (_, IndentKind::Tab) => IndentSize::tab(),
6262 };
6263
6264 let start = if has_multiple_rows || current_indent.len < selection.start.column {
6265 0
6266 } else {
6267 selection.start.column
6268 };
6269 let row_start = Point::new(row, start);
6270 edits.push((
6271 row_start..row_start,
6272 indent_delta.chars().collect::<String>(),
6273 ));
6274
6275 // Update this selection's endpoints to reflect the indentation.
6276 if row == selection.start.row {
6277 selection.start.column += indent_delta.len;
6278 }
6279 if row == selection.end.row {
6280 selection.end.column += indent_delta.len;
6281 delta_for_end_row = indent_delta.len;
6282 }
6283 }
6284
6285 if selection.start.row == selection.end.row {
6286 delta_for_start_row + delta_for_end_row
6287 } else {
6288 delta_for_end_row
6289 }
6290 }
6291
6292 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
6293 if self.read_only(cx) {
6294 return;
6295 }
6296 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6297 let selections = self.selections.all::<Point>(cx);
6298 let mut deletion_ranges = Vec::new();
6299 let mut last_outdent = None;
6300 {
6301 let buffer = self.buffer.read(cx);
6302 let snapshot = buffer.snapshot(cx);
6303 for selection in &selections {
6304 let settings = buffer.settings_at(selection.start, cx);
6305 let tab_size = settings.tab_size.get();
6306 let mut rows = selection.spanned_rows(false, &display_map);
6307
6308 // Avoid re-outdenting a row that has already been outdented by a
6309 // previous selection.
6310 if let Some(last_row) = last_outdent {
6311 if last_row == rows.start {
6312 rows.start = rows.start.next_row();
6313 }
6314 }
6315 let has_multiple_rows = rows.len() > 1;
6316 for row in rows.iter_rows() {
6317 let indent_size = snapshot.indent_size_for_line(row);
6318 if indent_size.len > 0 {
6319 let deletion_len = match indent_size.kind {
6320 IndentKind::Space => {
6321 let columns_to_prev_tab_stop = indent_size.len % tab_size;
6322 if columns_to_prev_tab_stop == 0 {
6323 tab_size
6324 } else {
6325 columns_to_prev_tab_stop
6326 }
6327 }
6328 IndentKind::Tab => 1,
6329 };
6330 let start = if has_multiple_rows
6331 || deletion_len > selection.start.column
6332 || indent_size.len < selection.start.column
6333 {
6334 0
6335 } else {
6336 selection.start.column - deletion_len
6337 };
6338 deletion_ranges.push(
6339 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
6340 );
6341 last_outdent = Some(row);
6342 }
6343 }
6344 }
6345 }
6346
6347 self.transact(cx, |this, cx| {
6348 this.buffer.update(cx, |buffer, cx| {
6349 let empty_str: Arc<str> = Arc::default();
6350 buffer.edit(
6351 deletion_ranges
6352 .into_iter()
6353 .map(|range| (range, empty_str.clone())),
6354 None,
6355 cx,
6356 );
6357 });
6358 let selections = this.selections.all::<usize>(cx);
6359 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6360 });
6361 }
6362
6363 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
6364 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6365 let selections = self.selections.all::<Point>(cx);
6366
6367 let mut new_cursors = Vec::new();
6368 let mut edit_ranges = Vec::new();
6369 let mut selections = selections.iter().peekable();
6370 while let Some(selection) = selections.next() {
6371 let mut rows = selection.spanned_rows(false, &display_map);
6372 let goal_display_column = selection.head().to_display_point(&display_map).column();
6373
6374 // Accumulate contiguous regions of rows that we want to delete.
6375 while let Some(next_selection) = selections.peek() {
6376 let next_rows = next_selection.spanned_rows(false, &display_map);
6377 if next_rows.start <= rows.end {
6378 rows.end = next_rows.end;
6379 selections.next().unwrap();
6380 } else {
6381 break;
6382 }
6383 }
6384
6385 let buffer = &display_map.buffer_snapshot;
6386 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
6387 let edit_end;
6388 let cursor_buffer_row;
6389 if buffer.max_point().row >= rows.end.0 {
6390 // If there's a line after the range, delete the \n from the end of the row range
6391 // and position the cursor on the next line.
6392 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
6393 cursor_buffer_row = rows.end;
6394 } else {
6395 // If there isn't a line after the range, delete the \n from the line before the
6396 // start of the row range and position the cursor there.
6397 edit_start = edit_start.saturating_sub(1);
6398 edit_end = buffer.len();
6399 cursor_buffer_row = rows.start.previous_row();
6400 }
6401
6402 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
6403 *cursor.column_mut() =
6404 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
6405
6406 new_cursors.push((
6407 selection.id,
6408 buffer.anchor_after(cursor.to_point(&display_map)),
6409 ));
6410 edit_ranges.push(edit_start..edit_end);
6411 }
6412
6413 self.transact(cx, |this, cx| {
6414 let buffer = this.buffer.update(cx, |buffer, cx| {
6415 let empty_str: Arc<str> = Arc::default();
6416 buffer.edit(
6417 edit_ranges
6418 .into_iter()
6419 .map(|range| (range, empty_str.clone())),
6420 None,
6421 cx,
6422 );
6423 buffer.snapshot(cx)
6424 });
6425 let new_selections = new_cursors
6426 .into_iter()
6427 .map(|(id, cursor)| {
6428 let cursor = cursor.to_point(&buffer);
6429 Selection {
6430 id,
6431 start: cursor,
6432 end: cursor,
6433 reversed: false,
6434 goal: SelectionGoal::None,
6435 }
6436 })
6437 .collect();
6438
6439 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6440 s.select(new_selections);
6441 });
6442 });
6443 }
6444
6445 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6446 if self.read_only(cx) {
6447 return;
6448 }
6449 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6450 for selection in self.selections.all::<Point>(cx) {
6451 let start = MultiBufferRow(selection.start.row);
6452 // Treat single line selections as if they include the next line. Otherwise this action
6453 // would do nothing for single line selections individual cursors.
6454 let end = if selection.start.row == selection.end.row {
6455 MultiBufferRow(selection.start.row + 1)
6456 } else {
6457 MultiBufferRow(selection.end.row)
6458 };
6459
6460 if let Some(last_row_range) = row_ranges.last_mut() {
6461 if start <= last_row_range.end {
6462 last_row_range.end = end;
6463 continue;
6464 }
6465 }
6466 row_ranges.push(start..end);
6467 }
6468
6469 let snapshot = self.buffer.read(cx).snapshot(cx);
6470 let mut cursor_positions = Vec::new();
6471 for row_range in &row_ranges {
6472 let anchor = snapshot.anchor_before(Point::new(
6473 row_range.end.previous_row().0,
6474 snapshot.line_len(row_range.end.previous_row()),
6475 ));
6476 cursor_positions.push(anchor..anchor);
6477 }
6478
6479 self.transact(cx, |this, cx| {
6480 for row_range in row_ranges.into_iter().rev() {
6481 for row in row_range.iter_rows().rev() {
6482 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6483 let next_line_row = row.next_row();
6484 let indent = snapshot.indent_size_for_line(next_line_row);
6485 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6486
6487 let replace = if snapshot.line_len(next_line_row) > indent.len {
6488 " "
6489 } else {
6490 ""
6491 };
6492
6493 this.buffer.update(cx, |buffer, cx| {
6494 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6495 });
6496 }
6497 }
6498
6499 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6500 s.select_anchor_ranges(cursor_positions)
6501 });
6502 });
6503 }
6504
6505 pub fn sort_lines_case_sensitive(
6506 &mut self,
6507 _: &SortLinesCaseSensitive,
6508 cx: &mut ViewContext<Self>,
6509 ) {
6510 self.manipulate_lines(cx, |lines| lines.sort())
6511 }
6512
6513 pub fn sort_lines_case_insensitive(
6514 &mut self,
6515 _: &SortLinesCaseInsensitive,
6516 cx: &mut ViewContext<Self>,
6517 ) {
6518 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6519 }
6520
6521 pub fn unique_lines_case_insensitive(
6522 &mut self,
6523 _: &UniqueLinesCaseInsensitive,
6524 cx: &mut ViewContext<Self>,
6525 ) {
6526 self.manipulate_lines(cx, |lines| {
6527 let mut seen = HashSet::default();
6528 lines.retain(|line| seen.insert(line.to_lowercase()));
6529 })
6530 }
6531
6532 pub fn unique_lines_case_sensitive(
6533 &mut self,
6534 _: &UniqueLinesCaseSensitive,
6535 cx: &mut ViewContext<Self>,
6536 ) {
6537 self.manipulate_lines(cx, |lines| {
6538 let mut seen = HashSet::default();
6539 lines.retain(|line| seen.insert(*line));
6540 })
6541 }
6542
6543 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6544 let mut revert_changes = HashMap::default();
6545 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6546 for hunk in hunks_for_rows(
6547 Some(MultiBufferRow(0)..multi_buffer_snapshot.max_buffer_row()).into_iter(),
6548 &multi_buffer_snapshot,
6549 ) {
6550 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6551 }
6552 if !revert_changes.is_empty() {
6553 self.transact(cx, |editor, cx| {
6554 editor.revert(revert_changes, cx);
6555 });
6556 }
6557 }
6558
6559 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6560 let Some(project) = self.project.clone() else {
6561 return;
6562 };
6563 self.reload(project, cx).detach_and_notify_err(cx);
6564 }
6565
6566 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6567 let revert_changes = self.gather_revert_changes(&self.selections.disjoint_anchors(), cx);
6568 if !revert_changes.is_empty() {
6569 self.transact(cx, |editor, cx| {
6570 editor.revert(revert_changes, cx);
6571 });
6572 }
6573 }
6574
6575 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6576 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6577 let project_path = buffer.read(cx).project_path(cx)?;
6578 let project = self.project.as_ref()?.read(cx);
6579 let entry = project.entry_for_path(&project_path, cx)?;
6580 let parent = match &entry.canonical_path {
6581 Some(canonical_path) => canonical_path.to_path_buf(),
6582 None => project.absolute_path(&project_path, cx)?,
6583 }
6584 .parent()?
6585 .to_path_buf();
6586 Some(parent)
6587 }) {
6588 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6589 }
6590 }
6591
6592 fn gather_revert_changes(
6593 &mut self,
6594 selections: &[Selection<Anchor>],
6595 cx: &mut ViewContext<'_, Editor>,
6596 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6597 let mut revert_changes = HashMap::default();
6598 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
6599 for hunk in hunks_for_selections(&multi_buffer_snapshot, selections) {
6600 Self::prepare_revert_change(&mut revert_changes, self.buffer(), &hunk, cx);
6601 }
6602 revert_changes
6603 }
6604
6605 pub fn prepare_revert_change(
6606 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6607 multi_buffer: &Model<MultiBuffer>,
6608 hunk: &MultiBufferDiffHunk,
6609 cx: &AppContext,
6610 ) -> Option<()> {
6611 let buffer = multi_buffer.read(cx).buffer(hunk.buffer_id)?;
6612 let buffer = buffer.read(cx);
6613 let original_text = buffer.diff_base()?.slice(hunk.diff_base_byte_range.clone());
6614 let buffer_snapshot = buffer.snapshot();
6615 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6616 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6617 probe
6618 .0
6619 .start
6620 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6621 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6622 }) {
6623 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6624 Some(())
6625 } else {
6626 None
6627 }
6628 }
6629
6630 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6631 self.manipulate_lines(cx, |lines| lines.reverse())
6632 }
6633
6634 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6635 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6636 }
6637
6638 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6639 where
6640 Fn: FnMut(&mut Vec<&str>),
6641 {
6642 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6643 let buffer = self.buffer.read(cx).snapshot(cx);
6644
6645 let mut edits = Vec::new();
6646
6647 let selections = self.selections.all::<Point>(cx);
6648 let mut selections = selections.iter().peekable();
6649 let mut contiguous_row_selections = Vec::new();
6650 let mut new_selections = Vec::new();
6651 let mut added_lines = 0;
6652 let mut removed_lines = 0;
6653
6654 while let Some(selection) = selections.next() {
6655 let (start_row, end_row) = consume_contiguous_rows(
6656 &mut contiguous_row_selections,
6657 selection,
6658 &display_map,
6659 &mut selections,
6660 );
6661
6662 let start_point = Point::new(start_row.0, 0);
6663 let end_point = Point::new(
6664 end_row.previous_row().0,
6665 buffer.line_len(end_row.previous_row()),
6666 );
6667 let text = buffer
6668 .text_for_range(start_point..end_point)
6669 .collect::<String>();
6670
6671 let mut lines = text.split('\n').collect_vec();
6672
6673 let lines_before = lines.len();
6674 callback(&mut lines);
6675 let lines_after = lines.len();
6676
6677 edits.push((start_point..end_point, lines.join("\n")));
6678
6679 // Selections must change based on added and removed line count
6680 let start_row =
6681 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6682 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6683 new_selections.push(Selection {
6684 id: selection.id,
6685 start: start_row,
6686 end: end_row,
6687 goal: SelectionGoal::None,
6688 reversed: selection.reversed,
6689 });
6690
6691 if lines_after > lines_before {
6692 added_lines += lines_after - lines_before;
6693 } else if lines_before > lines_after {
6694 removed_lines += lines_before - lines_after;
6695 }
6696 }
6697
6698 self.transact(cx, |this, cx| {
6699 let buffer = this.buffer.update(cx, |buffer, cx| {
6700 buffer.edit(edits, None, cx);
6701 buffer.snapshot(cx)
6702 });
6703
6704 // Recalculate offsets on newly edited buffer
6705 let new_selections = new_selections
6706 .iter()
6707 .map(|s| {
6708 let start_point = Point::new(s.start.0, 0);
6709 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6710 Selection {
6711 id: s.id,
6712 start: buffer.point_to_offset(start_point),
6713 end: buffer.point_to_offset(end_point),
6714 goal: s.goal,
6715 reversed: s.reversed,
6716 }
6717 })
6718 .collect();
6719
6720 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6721 s.select(new_selections);
6722 });
6723
6724 this.request_autoscroll(Autoscroll::fit(), cx);
6725 });
6726 }
6727
6728 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6729 self.manipulate_text(cx, |text| text.to_uppercase())
6730 }
6731
6732 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6733 self.manipulate_text(cx, |text| text.to_lowercase())
6734 }
6735
6736 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6737 self.manipulate_text(cx, |text| {
6738 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6739 // https://github.com/rutrum/convert-case/issues/16
6740 text.split('\n')
6741 .map(|line| line.to_case(Case::Title))
6742 .join("\n")
6743 })
6744 }
6745
6746 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6747 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6748 }
6749
6750 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6751 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6752 }
6753
6754 pub fn convert_to_upper_camel_case(
6755 &mut self,
6756 _: &ConvertToUpperCamelCase,
6757 cx: &mut ViewContext<Self>,
6758 ) {
6759 self.manipulate_text(cx, |text| {
6760 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6761 // https://github.com/rutrum/convert-case/issues/16
6762 text.split('\n')
6763 .map(|line| line.to_case(Case::UpperCamel))
6764 .join("\n")
6765 })
6766 }
6767
6768 pub fn convert_to_lower_camel_case(
6769 &mut self,
6770 _: &ConvertToLowerCamelCase,
6771 cx: &mut ViewContext<Self>,
6772 ) {
6773 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6774 }
6775
6776 pub fn convert_to_opposite_case(
6777 &mut self,
6778 _: &ConvertToOppositeCase,
6779 cx: &mut ViewContext<Self>,
6780 ) {
6781 self.manipulate_text(cx, |text| {
6782 text.chars()
6783 .fold(String::with_capacity(text.len()), |mut t, c| {
6784 if c.is_uppercase() {
6785 t.extend(c.to_lowercase());
6786 } else {
6787 t.extend(c.to_uppercase());
6788 }
6789 t
6790 })
6791 })
6792 }
6793
6794 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6795 where
6796 Fn: FnMut(&str) -> String,
6797 {
6798 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6799 let buffer = self.buffer.read(cx).snapshot(cx);
6800
6801 let mut new_selections = Vec::new();
6802 let mut edits = Vec::new();
6803 let mut selection_adjustment = 0i32;
6804
6805 for selection in self.selections.all::<usize>(cx) {
6806 let selection_is_empty = selection.is_empty();
6807
6808 let (start, end) = if selection_is_empty {
6809 let word_range = movement::surrounding_word(
6810 &display_map,
6811 selection.start.to_display_point(&display_map),
6812 );
6813 let start = word_range.start.to_offset(&display_map, Bias::Left);
6814 let end = word_range.end.to_offset(&display_map, Bias::Left);
6815 (start, end)
6816 } else {
6817 (selection.start, selection.end)
6818 };
6819
6820 let text = buffer.text_for_range(start..end).collect::<String>();
6821 let old_length = text.len() as i32;
6822 let text = callback(&text);
6823
6824 new_selections.push(Selection {
6825 start: (start as i32 - selection_adjustment) as usize,
6826 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6827 goal: SelectionGoal::None,
6828 ..selection
6829 });
6830
6831 selection_adjustment += old_length - text.len() as i32;
6832
6833 edits.push((start..end, text));
6834 }
6835
6836 self.transact(cx, |this, cx| {
6837 this.buffer.update(cx, |buffer, cx| {
6838 buffer.edit(edits, None, cx);
6839 });
6840
6841 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6842 s.select(new_selections);
6843 });
6844
6845 this.request_autoscroll(Autoscroll::fit(), cx);
6846 });
6847 }
6848
6849 pub fn duplicate_line(&mut self, upwards: bool, cx: &mut ViewContext<Self>) {
6850 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6851 let buffer = &display_map.buffer_snapshot;
6852 let selections = self.selections.all::<Point>(cx);
6853
6854 let mut edits = Vec::new();
6855 let mut selections_iter = selections.iter().peekable();
6856 while let Some(selection) = selections_iter.next() {
6857 // Avoid duplicating the same lines twice.
6858 let mut rows = selection.spanned_rows(false, &display_map);
6859
6860 while let Some(next_selection) = selections_iter.peek() {
6861 let next_rows = next_selection.spanned_rows(false, &display_map);
6862 if next_rows.start < rows.end {
6863 rows.end = next_rows.end;
6864 selections_iter.next().unwrap();
6865 } else {
6866 break;
6867 }
6868 }
6869
6870 // Copy the text from the selected row region and splice it either at the start
6871 // or end of the region.
6872 let start = Point::new(rows.start.0, 0);
6873 let end = Point::new(
6874 rows.end.previous_row().0,
6875 buffer.line_len(rows.end.previous_row()),
6876 );
6877 let text = buffer
6878 .text_for_range(start..end)
6879 .chain(Some("\n"))
6880 .collect::<String>();
6881 let insert_location = if upwards {
6882 Point::new(rows.end.0, 0)
6883 } else {
6884 start
6885 };
6886 edits.push((insert_location..insert_location, text));
6887 }
6888
6889 self.transact(cx, |this, cx| {
6890 this.buffer.update(cx, |buffer, cx| {
6891 buffer.edit(edits, None, cx);
6892 });
6893
6894 this.request_autoscroll(Autoscroll::fit(), cx);
6895 });
6896 }
6897
6898 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6899 self.duplicate_line(true, cx);
6900 }
6901
6902 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6903 self.duplicate_line(false, cx);
6904 }
6905
6906 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6907 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6908 let buffer = self.buffer.read(cx).snapshot(cx);
6909
6910 let mut edits = Vec::new();
6911 let mut unfold_ranges = Vec::new();
6912 let mut refold_creases = Vec::new();
6913
6914 let selections = self.selections.all::<Point>(cx);
6915 let mut selections = selections.iter().peekable();
6916 let mut contiguous_row_selections = Vec::new();
6917 let mut new_selections = Vec::new();
6918
6919 while let Some(selection) = selections.next() {
6920 // Find all the selections that span a contiguous row range
6921 let (start_row, end_row) = consume_contiguous_rows(
6922 &mut contiguous_row_selections,
6923 selection,
6924 &display_map,
6925 &mut selections,
6926 );
6927
6928 // Move the text spanned by the row range to be before the line preceding the row range
6929 if start_row.0 > 0 {
6930 let range_to_move = Point::new(
6931 start_row.previous_row().0,
6932 buffer.line_len(start_row.previous_row()),
6933 )
6934 ..Point::new(
6935 end_row.previous_row().0,
6936 buffer.line_len(end_row.previous_row()),
6937 );
6938 let insertion_point = display_map
6939 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6940 .0;
6941
6942 // Don't move lines across excerpts
6943 if buffer
6944 .excerpt_boundaries_in_range((
6945 Bound::Excluded(insertion_point),
6946 Bound::Included(range_to_move.end),
6947 ))
6948 .next()
6949 .is_none()
6950 {
6951 let text = buffer
6952 .text_for_range(range_to_move.clone())
6953 .flat_map(|s| s.chars())
6954 .skip(1)
6955 .chain(['\n'])
6956 .collect::<String>();
6957
6958 edits.push((
6959 buffer.anchor_after(range_to_move.start)
6960 ..buffer.anchor_before(range_to_move.end),
6961 String::new(),
6962 ));
6963 let insertion_anchor = buffer.anchor_after(insertion_point);
6964 edits.push((insertion_anchor..insertion_anchor, text));
6965
6966 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6967
6968 // Move selections up
6969 new_selections.extend(contiguous_row_selections.drain(..).map(
6970 |mut selection| {
6971 selection.start.row -= row_delta;
6972 selection.end.row -= row_delta;
6973 selection
6974 },
6975 ));
6976
6977 // Move folds up
6978 unfold_ranges.push(range_to_move.clone());
6979 for fold in display_map.folds_in_range(
6980 buffer.anchor_before(range_to_move.start)
6981 ..buffer.anchor_after(range_to_move.end),
6982 ) {
6983 let mut start = fold.range.start.to_point(&buffer);
6984 let mut end = fold.range.end.to_point(&buffer);
6985 start.row -= row_delta;
6986 end.row -= row_delta;
6987 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6988 }
6989 }
6990 }
6991
6992 // If we didn't move line(s), preserve the existing selections
6993 new_selections.append(&mut contiguous_row_selections);
6994 }
6995
6996 self.transact(cx, |this, cx| {
6997 this.unfold_ranges(&unfold_ranges, true, true, cx);
6998 this.buffer.update(cx, |buffer, cx| {
6999 for (range, text) in edits {
7000 buffer.edit([(range, text)], None, cx);
7001 }
7002 });
7003 this.fold_creases(refold_creases, true, cx);
7004 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7005 s.select(new_selections);
7006 })
7007 });
7008 }
7009
7010 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
7011 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7012 let buffer = self.buffer.read(cx).snapshot(cx);
7013
7014 let mut edits = Vec::new();
7015 let mut unfold_ranges = Vec::new();
7016 let mut refold_creases = Vec::new();
7017
7018 let selections = self.selections.all::<Point>(cx);
7019 let mut selections = selections.iter().peekable();
7020 let mut contiguous_row_selections = Vec::new();
7021 let mut new_selections = Vec::new();
7022
7023 while let Some(selection) = selections.next() {
7024 // Find all the selections that span a contiguous row range
7025 let (start_row, end_row) = consume_contiguous_rows(
7026 &mut contiguous_row_selections,
7027 selection,
7028 &display_map,
7029 &mut selections,
7030 );
7031
7032 // Move the text spanned by the row range to be after the last line of the row range
7033 if end_row.0 <= buffer.max_point().row {
7034 let range_to_move =
7035 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
7036 let insertion_point = display_map
7037 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
7038 .0;
7039
7040 // Don't move lines across excerpt boundaries
7041 if buffer
7042 .excerpt_boundaries_in_range((
7043 Bound::Excluded(range_to_move.start),
7044 Bound::Included(insertion_point),
7045 ))
7046 .next()
7047 .is_none()
7048 {
7049 let mut text = String::from("\n");
7050 text.extend(buffer.text_for_range(range_to_move.clone()));
7051 text.pop(); // Drop trailing newline
7052 edits.push((
7053 buffer.anchor_after(range_to_move.start)
7054 ..buffer.anchor_before(range_to_move.end),
7055 String::new(),
7056 ));
7057 let insertion_anchor = buffer.anchor_after(insertion_point);
7058 edits.push((insertion_anchor..insertion_anchor, text));
7059
7060 let row_delta = insertion_point.row - range_to_move.end.row + 1;
7061
7062 // Move selections down
7063 new_selections.extend(contiguous_row_selections.drain(..).map(
7064 |mut selection| {
7065 selection.start.row += row_delta;
7066 selection.end.row += row_delta;
7067 selection
7068 },
7069 ));
7070
7071 // Move folds down
7072 unfold_ranges.push(range_to_move.clone());
7073 for fold in display_map.folds_in_range(
7074 buffer.anchor_before(range_to_move.start)
7075 ..buffer.anchor_after(range_to_move.end),
7076 ) {
7077 let mut start = fold.range.start.to_point(&buffer);
7078 let mut end = fold.range.end.to_point(&buffer);
7079 start.row += row_delta;
7080 end.row += row_delta;
7081 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
7082 }
7083 }
7084 }
7085
7086 // If we didn't move line(s), preserve the existing selections
7087 new_selections.append(&mut contiguous_row_selections);
7088 }
7089
7090 self.transact(cx, |this, cx| {
7091 this.unfold_ranges(&unfold_ranges, true, true, cx);
7092 this.buffer.update(cx, |buffer, cx| {
7093 for (range, text) in edits {
7094 buffer.edit([(range, text)], None, cx);
7095 }
7096 });
7097 this.fold_creases(refold_creases, true, cx);
7098 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
7099 });
7100 }
7101
7102 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
7103 let text_layout_details = &self.text_layout_details(cx);
7104 self.transact(cx, |this, cx| {
7105 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7106 let mut edits: Vec<(Range<usize>, String)> = Default::default();
7107 let line_mode = s.line_mode;
7108 s.move_with(|display_map, selection| {
7109 if !selection.is_empty() || line_mode {
7110 return;
7111 }
7112
7113 let mut head = selection.head();
7114 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
7115 if head.column() == display_map.line_len(head.row()) {
7116 transpose_offset = display_map
7117 .buffer_snapshot
7118 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7119 }
7120
7121 if transpose_offset == 0 {
7122 return;
7123 }
7124
7125 *head.column_mut() += 1;
7126 head = display_map.clip_point(head, Bias::Right);
7127 let goal = SelectionGoal::HorizontalPosition(
7128 display_map
7129 .x_for_display_point(head, text_layout_details)
7130 .into(),
7131 );
7132 selection.collapse_to(head, goal);
7133
7134 let transpose_start = display_map
7135 .buffer_snapshot
7136 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
7137 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
7138 let transpose_end = display_map
7139 .buffer_snapshot
7140 .clip_offset(transpose_offset + 1, Bias::Right);
7141 if let Some(ch) =
7142 display_map.buffer_snapshot.chars_at(transpose_start).next()
7143 {
7144 edits.push((transpose_start..transpose_offset, String::new()));
7145 edits.push((transpose_end..transpose_end, ch.to_string()));
7146 }
7147 }
7148 });
7149 edits
7150 });
7151 this.buffer
7152 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7153 let selections = this.selections.all::<usize>(cx);
7154 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7155 s.select(selections);
7156 });
7157 });
7158 }
7159
7160 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
7161 self.rewrap_impl(IsVimMode::No, cx)
7162 }
7163
7164 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
7165 let buffer = self.buffer.read(cx).snapshot(cx);
7166 let selections = self.selections.all::<Point>(cx);
7167 let mut selections = selections.iter().peekable();
7168
7169 let mut edits = Vec::new();
7170 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
7171
7172 while let Some(selection) = selections.next() {
7173 let mut start_row = selection.start.row;
7174 let mut end_row = selection.end.row;
7175
7176 // Skip selections that overlap with a range that has already been rewrapped.
7177 let selection_range = start_row..end_row;
7178 if rewrapped_row_ranges
7179 .iter()
7180 .any(|range| range.overlaps(&selection_range))
7181 {
7182 continue;
7183 }
7184
7185 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
7186
7187 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
7188 match language_scope.language_name().0.as_ref() {
7189 "Markdown" | "Plain Text" => {
7190 should_rewrap = true;
7191 }
7192 _ => {}
7193 }
7194 }
7195
7196 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
7197
7198 // Since not all lines in the selection may be at the same indent
7199 // level, choose the indent size that is the most common between all
7200 // of the lines.
7201 //
7202 // If there is a tie, we use the deepest indent.
7203 let (indent_size, indent_end) = {
7204 let mut indent_size_occurrences = HashMap::default();
7205 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
7206
7207 for row in start_row..=end_row {
7208 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
7209 rows_by_indent_size.entry(indent).or_default().push(row);
7210 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
7211 }
7212
7213 let indent_size = indent_size_occurrences
7214 .into_iter()
7215 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
7216 .map(|(indent, _)| indent)
7217 .unwrap_or_default();
7218 let row = rows_by_indent_size[&indent_size][0];
7219 let indent_end = Point::new(row, indent_size.len);
7220
7221 (indent_size, indent_end)
7222 };
7223
7224 let mut line_prefix = indent_size.chars().collect::<String>();
7225
7226 if let Some(comment_prefix) =
7227 buffer
7228 .language_scope_at(selection.head())
7229 .and_then(|language| {
7230 language
7231 .line_comment_prefixes()
7232 .iter()
7233 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
7234 .cloned()
7235 })
7236 {
7237 line_prefix.push_str(&comment_prefix);
7238 should_rewrap = true;
7239 }
7240
7241 if !should_rewrap {
7242 continue;
7243 }
7244
7245 if selection.is_empty() {
7246 'expand_upwards: while start_row > 0 {
7247 let prev_row = start_row - 1;
7248 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
7249 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
7250 {
7251 start_row = prev_row;
7252 } else {
7253 break 'expand_upwards;
7254 }
7255 }
7256
7257 'expand_downwards: while end_row < buffer.max_point().row {
7258 let next_row = end_row + 1;
7259 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
7260 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
7261 {
7262 end_row = next_row;
7263 } else {
7264 break 'expand_downwards;
7265 }
7266 }
7267 }
7268
7269 let start = Point::new(start_row, 0);
7270 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
7271 let selection_text = buffer.text_for_range(start..end).collect::<String>();
7272 let Some(lines_without_prefixes) = selection_text
7273 .lines()
7274 .map(|line| {
7275 line.strip_prefix(&line_prefix)
7276 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
7277 .ok_or_else(|| {
7278 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
7279 })
7280 })
7281 .collect::<Result<Vec<_>, _>>()
7282 .log_err()
7283 else {
7284 continue;
7285 };
7286
7287 let wrap_column = buffer
7288 .settings_at(Point::new(start_row, 0), cx)
7289 .preferred_line_length as usize;
7290 let wrapped_text = wrap_with_prefix(
7291 line_prefix,
7292 lines_without_prefixes.join(" "),
7293 wrap_column,
7294 tab_size,
7295 );
7296
7297 // TODO: should always use char-based diff while still supporting cursor behavior that
7298 // matches vim.
7299 let diff = match is_vim_mode {
7300 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
7301 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
7302 };
7303 let mut offset = start.to_offset(&buffer);
7304 let mut moved_since_edit = true;
7305
7306 for change in diff.iter_all_changes() {
7307 let value = change.value();
7308 match change.tag() {
7309 ChangeTag::Equal => {
7310 offset += value.len();
7311 moved_since_edit = true;
7312 }
7313 ChangeTag::Delete => {
7314 let start = buffer.anchor_after(offset);
7315 let end = buffer.anchor_before(offset + value.len());
7316
7317 if moved_since_edit {
7318 edits.push((start..end, String::new()));
7319 } else {
7320 edits.last_mut().unwrap().0.end = end;
7321 }
7322
7323 offset += value.len();
7324 moved_since_edit = false;
7325 }
7326 ChangeTag::Insert => {
7327 if moved_since_edit {
7328 let anchor = buffer.anchor_after(offset);
7329 edits.push((anchor..anchor, value.to_string()));
7330 } else {
7331 edits.last_mut().unwrap().1.push_str(value);
7332 }
7333
7334 moved_since_edit = false;
7335 }
7336 }
7337 }
7338
7339 rewrapped_row_ranges.push(start_row..=end_row);
7340 }
7341
7342 self.buffer
7343 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
7344 }
7345
7346 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
7347 let mut text = String::new();
7348 let buffer = self.buffer.read(cx).snapshot(cx);
7349 let mut selections = self.selections.all::<Point>(cx);
7350 let mut clipboard_selections = Vec::with_capacity(selections.len());
7351 {
7352 let max_point = buffer.max_point();
7353 let mut is_first = true;
7354 for selection in &mut selections {
7355 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7356 if is_entire_line {
7357 selection.start = Point::new(selection.start.row, 0);
7358 if !selection.is_empty() && selection.end.column == 0 {
7359 selection.end = cmp::min(max_point, selection.end);
7360 } else {
7361 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
7362 }
7363 selection.goal = SelectionGoal::None;
7364 }
7365 if is_first {
7366 is_first = false;
7367 } else {
7368 text += "\n";
7369 }
7370 let mut len = 0;
7371 for chunk in buffer.text_for_range(selection.start..selection.end) {
7372 text.push_str(chunk);
7373 len += chunk.len();
7374 }
7375 clipboard_selections.push(ClipboardSelection {
7376 len,
7377 is_entire_line,
7378 first_line_indent: buffer
7379 .indent_size_for_line(MultiBufferRow(selection.start.row))
7380 .len,
7381 });
7382 }
7383 }
7384
7385 self.transact(cx, |this, cx| {
7386 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7387 s.select(selections);
7388 });
7389 this.insert("", cx);
7390 });
7391 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
7392 }
7393
7394 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
7395 let item = self.cut_common(cx);
7396 cx.write_to_clipboard(item);
7397 }
7398
7399 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
7400 self.change_selections(None, cx, |s| {
7401 s.move_with(|snapshot, sel| {
7402 if sel.is_empty() {
7403 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
7404 }
7405 });
7406 });
7407 let item = self.cut_common(cx);
7408 cx.set_global(KillRing(item))
7409 }
7410
7411 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
7412 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
7413 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
7414 (kill_ring.text().to_string(), kill_ring.metadata_json())
7415 } else {
7416 return;
7417 }
7418 } else {
7419 return;
7420 };
7421 self.do_paste(&text, metadata, false, cx);
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 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11874 self.blame()
11875 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11876 }
11877
11878 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11879 let cursor_anchor = self.selections.newest_anchor().head();
11880
11881 let snapshot = self.buffer.read(cx).snapshot(cx);
11882 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11883
11884 snapshot.line_len(buffer_row) == 0
11885 }
11886
11887 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11888 let buffer_and_selection = maybe!({
11889 let selection = self.selections.newest::<Point>(cx);
11890 let selection_range = selection.range();
11891
11892 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11893 (buffer, selection_range.start.row..selection_range.end.row)
11894 } else {
11895 let buffer_ranges = self
11896 .buffer()
11897 .read(cx)
11898 .range_to_buffer_ranges(selection_range, cx);
11899
11900 let (buffer, range, _) = if selection.reversed {
11901 buffer_ranges.first()
11902 } else {
11903 buffer_ranges.last()
11904 }?;
11905
11906 let snapshot = buffer.read(cx).snapshot();
11907 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11908 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11909 (buffer.clone(), selection)
11910 };
11911
11912 Some((buffer, selection))
11913 });
11914
11915 let Some((buffer, selection)) = buffer_and_selection else {
11916 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11917 };
11918
11919 let Some(project) = self.project.as_ref() else {
11920 return Task::ready(Err(anyhow!("editor does not have project")));
11921 };
11922
11923 project.update(cx, |project, cx| {
11924 project.get_permalink_to_line(&buffer, selection, cx)
11925 })
11926 }
11927
11928 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11929 let permalink_task = self.get_permalink_to_line(cx);
11930 let workspace = self.workspace();
11931
11932 cx.spawn(|_, mut cx| async move {
11933 match permalink_task.await {
11934 Ok(permalink) => {
11935 cx.update(|cx| {
11936 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11937 })
11938 .ok();
11939 }
11940 Err(err) => {
11941 let message = format!("Failed to copy permalink: {err}");
11942
11943 Err::<(), anyhow::Error>(err).log_err();
11944
11945 if let Some(workspace) = workspace {
11946 workspace
11947 .update(&mut cx, |workspace, cx| {
11948 struct CopyPermalinkToLine;
11949
11950 workspace.show_toast(
11951 Toast::new(
11952 NotificationId::unique::<CopyPermalinkToLine>(),
11953 message,
11954 ),
11955 cx,
11956 )
11957 })
11958 .ok();
11959 }
11960 }
11961 }
11962 })
11963 .detach();
11964 }
11965
11966 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11967 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11968 if let Some(file) = self.target_file(cx) {
11969 if let Some(path) = file.path().to_str() {
11970 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11971 }
11972 }
11973 }
11974
11975 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11976 let permalink_task = self.get_permalink_to_line(cx);
11977 let workspace = self.workspace();
11978
11979 cx.spawn(|_, mut cx| async move {
11980 match permalink_task.await {
11981 Ok(permalink) => {
11982 cx.update(|cx| {
11983 cx.open_url(permalink.as_ref());
11984 })
11985 .ok();
11986 }
11987 Err(err) => {
11988 let message = format!("Failed to open permalink: {err}");
11989
11990 Err::<(), anyhow::Error>(err).log_err();
11991
11992 if let Some(workspace) = workspace {
11993 workspace
11994 .update(&mut cx, |workspace, cx| {
11995 struct OpenPermalinkToLine;
11996
11997 workspace.show_toast(
11998 Toast::new(
11999 NotificationId::unique::<OpenPermalinkToLine>(),
12000 message,
12001 ),
12002 cx,
12003 )
12004 })
12005 .ok();
12006 }
12007 }
12008 }
12009 })
12010 .detach();
12011 }
12012
12013 /// Adds a row highlight for the given range. If a row has multiple highlights, the
12014 /// last highlight added will be used.
12015 ///
12016 /// If the range ends at the beginning of a line, then that line will not be highlighted.
12017 pub fn highlight_rows<T: 'static>(
12018 &mut self,
12019 range: Range<Anchor>,
12020 color: Hsla,
12021 should_autoscroll: bool,
12022 cx: &mut ViewContext<Self>,
12023 ) {
12024 let snapshot = self.buffer().read(cx).snapshot(cx);
12025 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12026 let ix = row_highlights.binary_search_by(|highlight| {
12027 Ordering::Equal
12028 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
12029 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
12030 });
12031
12032 if let Err(mut ix) = ix {
12033 let index = post_inc(&mut self.highlight_order);
12034
12035 // If this range intersects with the preceding highlight, then merge it with
12036 // the preceding highlight. Otherwise insert a new highlight.
12037 let mut merged = false;
12038 if ix > 0 {
12039 let prev_highlight = &mut row_highlights[ix - 1];
12040 if prev_highlight
12041 .range
12042 .end
12043 .cmp(&range.start, &snapshot)
12044 .is_ge()
12045 {
12046 ix -= 1;
12047 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
12048 prev_highlight.range.end = range.end;
12049 }
12050 merged = true;
12051 prev_highlight.index = index;
12052 prev_highlight.color = color;
12053 prev_highlight.should_autoscroll = should_autoscroll;
12054 }
12055 }
12056
12057 if !merged {
12058 row_highlights.insert(
12059 ix,
12060 RowHighlight {
12061 range: range.clone(),
12062 index,
12063 color,
12064 should_autoscroll,
12065 },
12066 );
12067 }
12068
12069 // If any of the following highlights intersect with this one, merge them.
12070 while let Some(next_highlight) = row_highlights.get(ix + 1) {
12071 let highlight = &row_highlights[ix];
12072 if next_highlight
12073 .range
12074 .start
12075 .cmp(&highlight.range.end, &snapshot)
12076 .is_le()
12077 {
12078 if next_highlight
12079 .range
12080 .end
12081 .cmp(&highlight.range.end, &snapshot)
12082 .is_gt()
12083 {
12084 row_highlights[ix].range.end = next_highlight.range.end;
12085 }
12086 row_highlights.remove(ix + 1);
12087 } else {
12088 break;
12089 }
12090 }
12091 }
12092 }
12093
12094 /// Remove any highlighted row ranges of the given type that intersect the
12095 /// given ranges.
12096 pub fn remove_highlighted_rows<T: 'static>(
12097 &mut self,
12098 ranges_to_remove: Vec<Range<Anchor>>,
12099 cx: &mut ViewContext<Self>,
12100 ) {
12101 let snapshot = self.buffer().read(cx).snapshot(cx);
12102 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
12103 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
12104 row_highlights.retain(|highlight| {
12105 while let Some(range_to_remove) = ranges_to_remove.peek() {
12106 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
12107 Ordering::Less | Ordering::Equal => {
12108 ranges_to_remove.next();
12109 }
12110 Ordering::Greater => {
12111 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
12112 Ordering::Less | Ordering::Equal => {
12113 return false;
12114 }
12115 Ordering::Greater => break,
12116 }
12117 }
12118 }
12119 }
12120
12121 true
12122 })
12123 }
12124
12125 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
12126 pub fn clear_row_highlights<T: 'static>(&mut self) {
12127 self.highlighted_rows.remove(&TypeId::of::<T>());
12128 }
12129
12130 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
12131 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
12132 self.highlighted_rows
12133 .get(&TypeId::of::<T>())
12134 .map_or(&[] as &[_], |vec| vec.as_slice())
12135 .iter()
12136 .map(|highlight| (highlight.range.clone(), highlight.color))
12137 }
12138
12139 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
12140 /// Rerturns a map of display rows that are highlighted and their corresponding highlight color.
12141 /// Allows to ignore certain kinds of highlights.
12142 pub fn highlighted_display_rows(
12143 &mut self,
12144 cx: &mut WindowContext,
12145 ) -> BTreeMap<DisplayRow, Hsla> {
12146 let snapshot = self.snapshot(cx);
12147 let mut used_highlight_orders = HashMap::default();
12148 self.highlighted_rows
12149 .iter()
12150 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
12151 .fold(
12152 BTreeMap::<DisplayRow, Hsla>::new(),
12153 |mut unique_rows, highlight| {
12154 let start = highlight.range.start.to_display_point(&snapshot);
12155 let end = highlight.range.end.to_display_point(&snapshot);
12156 let start_row = start.row().0;
12157 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12158 && end.column() == 0
12159 {
12160 end.row().0.saturating_sub(1)
12161 } else {
12162 end.row().0
12163 };
12164 for row in start_row..=end_row {
12165 let used_index =
12166 used_highlight_orders.entry(row).or_insert(highlight.index);
12167 if highlight.index >= *used_index {
12168 *used_index = highlight.index;
12169 unique_rows.insert(DisplayRow(row), highlight.color);
12170 }
12171 }
12172 unique_rows
12173 },
12174 )
12175 }
12176
12177 pub fn highlighted_display_row_for_autoscroll(
12178 &self,
12179 snapshot: &DisplaySnapshot,
12180 ) -> Option<DisplayRow> {
12181 self.highlighted_rows
12182 .values()
12183 .flat_map(|highlighted_rows| highlighted_rows.iter())
12184 .filter_map(|highlight| {
12185 if highlight.should_autoscroll {
12186 Some(highlight.range.start.to_display_point(snapshot).row())
12187 } else {
12188 None
12189 }
12190 })
12191 .min()
12192 }
12193
12194 pub fn set_search_within_ranges(
12195 &mut self,
12196 ranges: &[Range<Anchor>],
12197 cx: &mut ViewContext<Self>,
12198 ) {
12199 self.highlight_background::<SearchWithinRange>(
12200 ranges,
12201 |colors| colors.editor_document_highlight_read_background,
12202 cx,
12203 )
12204 }
12205
12206 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12207 self.breadcrumb_header = Some(new_header);
12208 }
12209
12210 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12211 self.clear_background_highlights::<SearchWithinRange>(cx);
12212 }
12213
12214 pub fn highlight_background<T: 'static>(
12215 &mut self,
12216 ranges: &[Range<Anchor>],
12217 color_fetcher: fn(&ThemeColors) -> Hsla,
12218 cx: &mut ViewContext<Self>,
12219 ) {
12220 self.background_highlights
12221 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12222 self.scrollbar_marker_state.dirty = true;
12223 cx.notify();
12224 }
12225
12226 pub fn clear_background_highlights<T: 'static>(
12227 &mut self,
12228 cx: &mut ViewContext<Self>,
12229 ) -> Option<BackgroundHighlight> {
12230 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12231 if !text_highlights.1.is_empty() {
12232 self.scrollbar_marker_state.dirty = true;
12233 cx.notify();
12234 }
12235 Some(text_highlights)
12236 }
12237
12238 pub fn highlight_gutter<T: 'static>(
12239 &mut self,
12240 ranges: &[Range<Anchor>],
12241 color_fetcher: fn(&AppContext) -> Hsla,
12242 cx: &mut ViewContext<Self>,
12243 ) {
12244 self.gutter_highlights
12245 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12246 cx.notify();
12247 }
12248
12249 pub fn clear_gutter_highlights<T: 'static>(
12250 &mut self,
12251 cx: &mut ViewContext<Self>,
12252 ) -> Option<GutterHighlight> {
12253 cx.notify();
12254 self.gutter_highlights.remove(&TypeId::of::<T>())
12255 }
12256
12257 #[cfg(feature = "test-support")]
12258 pub fn all_text_background_highlights(
12259 &mut self,
12260 cx: &mut ViewContext<Self>,
12261 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12262 let snapshot = self.snapshot(cx);
12263 let buffer = &snapshot.buffer_snapshot;
12264 let start = buffer.anchor_before(0);
12265 let end = buffer.anchor_after(buffer.len());
12266 let theme = cx.theme().colors();
12267 self.background_highlights_in_range(start..end, &snapshot, theme)
12268 }
12269
12270 #[cfg(feature = "test-support")]
12271 pub fn search_background_highlights(
12272 &mut self,
12273 cx: &mut ViewContext<Self>,
12274 ) -> Vec<Range<Point>> {
12275 let snapshot = self.buffer().read(cx).snapshot(cx);
12276
12277 let highlights = self
12278 .background_highlights
12279 .get(&TypeId::of::<items::BufferSearchHighlights>());
12280
12281 if let Some((_color, ranges)) = highlights {
12282 ranges
12283 .iter()
12284 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12285 .collect_vec()
12286 } else {
12287 vec![]
12288 }
12289 }
12290
12291 fn document_highlights_for_position<'a>(
12292 &'a self,
12293 position: Anchor,
12294 buffer: &'a MultiBufferSnapshot,
12295 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12296 let read_highlights = self
12297 .background_highlights
12298 .get(&TypeId::of::<DocumentHighlightRead>())
12299 .map(|h| &h.1);
12300 let write_highlights = self
12301 .background_highlights
12302 .get(&TypeId::of::<DocumentHighlightWrite>())
12303 .map(|h| &h.1);
12304 let left_position = position.bias_left(buffer);
12305 let right_position = position.bias_right(buffer);
12306 read_highlights
12307 .into_iter()
12308 .chain(write_highlights)
12309 .flat_map(move |ranges| {
12310 let start_ix = match ranges.binary_search_by(|probe| {
12311 let cmp = probe.end.cmp(&left_position, buffer);
12312 if cmp.is_ge() {
12313 Ordering::Greater
12314 } else {
12315 Ordering::Less
12316 }
12317 }) {
12318 Ok(i) | Err(i) => i,
12319 };
12320
12321 ranges[start_ix..]
12322 .iter()
12323 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12324 })
12325 }
12326
12327 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12328 self.background_highlights
12329 .get(&TypeId::of::<T>())
12330 .map_or(false, |(_, highlights)| !highlights.is_empty())
12331 }
12332
12333 pub fn background_highlights_in_range(
12334 &self,
12335 search_range: Range<Anchor>,
12336 display_snapshot: &DisplaySnapshot,
12337 theme: &ThemeColors,
12338 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12339 let mut results = Vec::new();
12340 for (color_fetcher, ranges) in self.background_highlights.values() {
12341 let color = color_fetcher(theme);
12342 let start_ix = match ranges.binary_search_by(|probe| {
12343 let cmp = probe
12344 .end
12345 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12346 if cmp.is_gt() {
12347 Ordering::Greater
12348 } else {
12349 Ordering::Less
12350 }
12351 }) {
12352 Ok(i) | Err(i) => i,
12353 };
12354 for range in &ranges[start_ix..] {
12355 if range
12356 .start
12357 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12358 .is_ge()
12359 {
12360 break;
12361 }
12362
12363 let start = range.start.to_display_point(display_snapshot);
12364 let end = range.end.to_display_point(display_snapshot);
12365 results.push((start..end, color))
12366 }
12367 }
12368 results
12369 }
12370
12371 pub fn background_highlight_row_ranges<T: 'static>(
12372 &self,
12373 search_range: Range<Anchor>,
12374 display_snapshot: &DisplaySnapshot,
12375 count: usize,
12376 ) -> Vec<RangeInclusive<DisplayPoint>> {
12377 let mut results = Vec::new();
12378 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12379 return vec![];
12380 };
12381
12382 let start_ix = match ranges.binary_search_by(|probe| {
12383 let cmp = probe
12384 .end
12385 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12386 if cmp.is_gt() {
12387 Ordering::Greater
12388 } else {
12389 Ordering::Less
12390 }
12391 }) {
12392 Ok(i) | Err(i) => i,
12393 };
12394 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12395 if let (Some(start_display), Some(end_display)) = (start, end) {
12396 results.push(
12397 start_display.to_display_point(display_snapshot)
12398 ..=end_display.to_display_point(display_snapshot),
12399 );
12400 }
12401 };
12402 let mut start_row: Option<Point> = None;
12403 let mut end_row: Option<Point> = None;
12404 if ranges.len() > count {
12405 return Vec::new();
12406 }
12407 for range in &ranges[start_ix..] {
12408 if range
12409 .start
12410 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12411 .is_ge()
12412 {
12413 break;
12414 }
12415 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12416 if let Some(current_row) = &end_row {
12417 if end.row == current_row.row {
12418 continue;
12419 }
12420 }
12421 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12422 if start_row.is_none() {
12423 assert_eq!(end_row, None);
12424 start_row = Some(start);
12425 end_row = Some(end);
12426 continue;
12427 }
12428 if let Some(current_end) = end_row.as_mut() {
12429 if start.row > current_end.row + 1 {
12430 push_region(start_row, end_row);
12431 start_row = Some(start);
12432 end_row = Some(end);
12433 } else {
12434 // Merge two hunks.
12435 *current_end = end;
12436 }
12437 } else {
12438 unreachable!();
12439 }
12440 }
12441 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12442 push_region(start_row, end_row);
12443 results
12444 }
12445
12446 pub fn gutter_highlights_in_range(
12447 &self,
12448 search_range: Range<Anchor>,
12449 display_snapshot: &DisplaySnapshot,
12450 cx: &AppContext,
12451 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12452 let mut results = Vec::new();
12453 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12454 let color = color_fetcher(cx);
12455 let start_ix = match ranges.binary_search_by(|probe| {
12456 let cmp = probe
12457 .end
12458 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12459 if cmp.is_gt() {
12460 Ordering::Greater
12461 } else {
12462 Ordering::Less
12463 }
12464 }) {
12465 Ok(i) | Err(i) => i,
12466 };
12467 for range in &ranges[start_ix..] {
12468 if range
12469 .start
12470 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12471 .is_ge()
12472 {
12473 break;
12474 }
12475
12476 let start = range.start.to_display_point(display_snapshot);
12477 let end = range.end.to_display_point(display_snapshot);
12478 results.push((start..end, color))
12479 }
12480 }
12481 results
12482 }
12483
12484 /// Get the text ranges corresponding to the redaction query
12485 pub fn redacted_ranges(
12486 &self,
12487 search_range: Range<Anchor>,
12488 display_snapshot: &DisplaySnapshot,
12489 cx: &WindowContext,
12490 ) -> Vec<Range<DisplayPoint>> {
12491 display_snapshot
12492 .buffer_snapshot
12493 .redacted_ranges(search_range, |file| {
12494 if let Some(file) = file {
12495 file.is_private()
12496 && EditorSettings::get(
12497 Some(SettingsLocation {
12498 worktree_id: file.worktree_id(cx),
12499 path: file.path().as_ref(),
12500 }),
12501 cx,
12502 )
12503 .redact_private_values
12504 } else {
12505 false
12506 }
12507 })
12508 .map(|range| {
12509 range.start.to_display_point(display_snapshot)
12510 ..range.end.to_display_point(display_snapshot)
12511 })
12512 .collect()
12513 }
12514
12515 pub fn highlight_text<T: 'static>(
12516 &mut self,
12517 ranges: Vec<Range<Anchor>>,
12518 style: HighlightStyle,
12519 cx: &mut ViewContext<Self>,
12520 ) {
12521 self.display_map.update(cx, |map, _| {
12522 map.highlight_text(TypeId::of::<T>(), ranges, style)
12523 });
12524 cx.notify();
12525 }
12526
12527 pub(crate) fn highlight_inlays<T: 'static>(
12528 &mut self,
12529 highlights: Vec<InlayHighlight>,
12530 style: HighlightStyle,
12531 cx: &mut ViewContext<Self>,
12532 ) {
12533 self.display_map.update(cx, |map, _| {
12534 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12535 });
12536 cx.notify();
12537 }
12538
12539 pub fn text_highlights<'a, T: 'static>(
12540 &'a self,
12541 cx: &'a AppContext,
12542 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12543 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12544 }
12545
12546 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12547 let cleared = self
12548 .display_map
12549 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12550 if cleared {
12551 cx.notify();
12552 }
12553 }
12554
12555 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12556 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12557 && self.focus_handle.is_focused(cx)
12558 }
12559
12560 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12561 self.show_cursor_when_unfocused = is_enabled;
12562 cx.notify();
12563 }
12564
12565 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12566 cx.notify();
12567 }
12568
12569 fn on_buffer_event(
12570 &mut self,
12571 multibuffer: Model<MultiBuffer>,
12572 event: &multi_buffer::Event,
12573 cx: &mut ViewContext<Self>,
12574 ) {
12575 match event {
12576 multi_buffer::Event::Edited {
12577 singleton_buffer_edited,
12578 } => {
12579 self.scrollbar_marker_state.dirty = true;
12580 self.active_indent_guides_state.dirty = true;
12581 self.refresh_active_diagnostics(cx);
12582 self.refresh_code_actions(cx);
12583 if self.has_active_inline_completion(cx) {
12584 self.update_visible_inline_completion(cx);
12585 }
12586 cx.emit(EditorEvent::BufferEdited);
12587 cx.emit(SearchEvent::MatchesInvalidated);
12588 if *singleton_buffer_edited {
12589 if let Some(project) = &self.project {
12590 let project = project.read(cx);
12591 #[allow(clippy::mutable_key_type)]
12592 let languages_affected = multibuffer
12593 .read(cx)
12594 .all_buffers()
12595 .into_iter()
12596 .filter_map(|buffer| {
12597 let buffer = buffer.read(cx);
12598 let language = buffer.language()?;
12599 if project.is_local()
12600 && project.language_servers_for_buffer(buffer, cx).count() == 0
12601 {
12602 None
12603 } else {
12604 Some(language)
12605 }
12606 })
12607 .cloned()
12608 .collect::<HashSet<_>>();
12609 if !languages_affected.is_empty() {
12610 self.refresh_inlay_hints(
12611 InlayHintRefreshReason::BufferEdited(languages_affected),
12612 cx,
12613 );
12614 }
12615 }
12616 }
12617
12618 let Some(project) = &self.project else { return };
12619 let (telemetry, is_via_ssh) = {
12620 let project = project.read(cx);
12621 let telemetry = project.client().telemetry().clone();
12622 let is_via_ssh = project.is_via_ssh();
12623 (telemetry, is_via_ssh)
12624 };
12625 refresh_linked_ranges(self, cx);
12626 telemetry.log_edit_event("editor", is_via_ssh);
12627 }
12628 multi_buffer::Event::ExcerptsAdded {
12629 buffer,
12630 predecessor,
12631 excerpts,
12632 } => {
12633 self.tasks_update_task = Some(self.refresh_runnables(cx));
12634 cx.emit(EditorEvent::ExcerptsAdded {
12635 buffer: buffer.clone(),
12636 predecessor: *predecessor,
12637 excerpts: excerpts.clone(),
12638 });
12639 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12640 }
12641 multi_buffer::Event::ExcerptsRemoved { ids } => {
12642 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12643 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12644 }
12645 multi_buffer::Event::ExcerptsEdited { ids } => {
12646 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12647 }
12648 multi_buffer::Event::ExcerptsExpanded { ids } => {
12649 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12650 }
12651 multi_buffer::Event::Reparsed(buffer_id) => {
12652 self.tasks_update_task = Some(self.refresh_runnables(cx));
12653
12654 cx.emit(EditorEvent::Reparsed(*buffer_id));
12655 }
12656 multi_buffer::Event::LanguageChanged(buffer_id) => {
12657 linked_editing_ranges::refresh_linked_ranges(self, cx);
12658 cx.emit(EditorEvent::Reparsed(*buffer_id));
12659 cx.notify();
12660 }
12661 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12662 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12663 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12664 cx.emit(EditorEvent::TitleChanged)
12665 }
12666 multi_buffer::Event::DiffBaseChanged => {
12667 self.scrollbar_marker_state.dirty = true;
12668 cx.emit(EditorEvent::DiffBaseChanged);
12669 cx.notify();
12670 }
12671 multi_buffer::Event::DiffUpdated { buffer } => {
12672 self.sync_expanded_diff_hunks(buffer.clone(), cx);
12673 cx.notify();
12674 }
12675 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12676 multi_buffer::Event::DiagnosticsUpdated => {
12677 self.refresh_active_diagnostics(cx);
12678 self.scrollbar_marker_state.dirty = true;
12679 cx.notify();
12680 }
12681 _ => {}
12682 };
12683 }
12684
12685 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12686 cx.notify();
12687 }
12688
12689 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12690 self.tasks_update_task = Some(self.refresh_runnables(cx));
12691 self.refresh_inline_completion(true, false, cx);
12692 self.refresh_inlay_hints(
12693 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12694 self.selections.newest_anchor().head(),
12695 &self.buffer.read(cx).snapshot(cx),
12696 cx,
12697 )),
12698 cx,
12699 );
12700
12701 let old_cursor_shape = self.cursor_shape;
12702
12703 {
12704 let editor_settings = EditorSettings::get_global(cx);
12705 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12706 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12707 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12708 }
12709
12710 if old_cursor_shape != self.cursor_shape {
12711 cx.emit(EditorEvent::CursorShapeChanged);
12712 }
12713
12714 let project_settings = ProjectSettings::get_global(cx);
12715 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12716
12717 if self.mode == EditorMode::Full {
12718 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12719 if self.git_blame_inline_enabled != inline_blame_enabled {
12720 self.toggle_git_blame_inline_internal(false, cx);
12721 }
12722 }
12723
12724 cx.notify();
12725 }
12726
12727 pub fn set_searchable(&mut self, searchable: bool) {
12728 self.searchable = searchable;
12729 }
12730
12731 pub fn searchable(&self) -> bool {
12732 self.searchable
12733 }
12734
12735 fn open_proposed_changes_editor(
12736 &mut self,
12737 _: &OpenProposedChangesEditor,
12738 cx: &mut ViewContext<Self>,
12739 ) {
12740 let Some(workspace) = self.workspace() else {
12741 cx.propagate();
12742 return;
12743 };
12744
12745 let selections = self.selections.all::<usize>(cx);
12746 let buffer = self.buffer.read(cx);
12747 let mut new_selections_by_buffer = HashMap::default();
12748 for selection in selections {
12749 for (buffer, range, _) in
12750 buffer.range_to_buffer_ranges(selection.start..selection.end, cx)
12751 {
12752 let mut range = range.to_point(buffer.read(cx));
12753 range.start.column = 0;
12754 range.end.column = buffer.read(cx).line_len(range.end.row);
12755 new_selections_by_buffer
12756 .entry(buffer)
12757 .or_insert(Vec::new())
12758 .push(range)
12759 }
12760 }
12761
12762 let proposed_changes_buffers = new_selections_by_buffer
12763 .into_iter()
12764 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12765 .collect::<Vec<_>>();
12766 let proposed_changes_editor = cx.new_view(|cx| {
12767 ProposedChangesEditor::new(
12768 "Proposed changes",
12769 proposed_changes_buffers,
12770 self.project.clone(),
12771 cx,
12772 )
12773 });
12774
12775 cx.window_context().defer(move |cx| {
12776 workspace.update(cx, |workspace, cx| {
12777 workspace.active_pane().update(cx, |pane, cx| {
12778 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12779 });
12780 });
12781 });
12782 }
12783
12784 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12785 self.open_excerpts_common(None, true, cx)
12786 }
12787
12788 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12789 self.open_excerpts_common(None, false, cx)
12790 }
12791
12792 fn open_excerpts_common(
12793 &mut self,
12794 jump_data: Option<JumpData>,
12795 split: bool,
12796 cx: &mut ViewContext<Self>,
12797 ) {
12798 let Some(workspace) = self.workspace() else {
12799 cx.propagate();
12800 return;
12801 };
12802
12803 if self.buffer.read(cx).is_singleton() {
12804 cx.propagate();
12805 return;
12806 }
12807
12808 let mut new_selections_by_buffer = HashMap::default();
12809 match &jump_data {
12810 Some(jump_data) => {
12811 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12812 if let Some(buffer) = multi_buffer_snapshot
12813 .buffer_id_for_excerpt(jump_data.excerpt_id)
12814 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12815 {
12816 let buffer_snapshot = buffer.read(cx).snapshot();
12817 let jump_to_point = if buffer_snapshot.can_resolve(&jump_data.anchor) {
12818 language::ToPoint::to_point(&jump_data.anchor, &buffer_snapshot)
12819 } else {
12820 buffer_snapshot.clip_point(jump_data.position, Bias::Left)
12821 };
12822 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12823 new_selections_by_buffer.insert(
12824 buffer,
12825 (
12826 vec![jump_to_offset..jump_to_offset],
12827 Some(jump_data.line_offset_from_top),
12828 ),
12829 );
12830 }
12831 }
12832 None => {
12833 let selections = self.selections.all::<usize>(cx);
12834 let buffer = self.buffer.read(cx);
12835 for selection in selections {
12836 for (mut buffer_handle, mut range, _) in
12837 buffer.range_to_buffer_ranges(selection.range(), cx)
12838 {
12839 // When editing branch buffers, jump to the corresponding location
12840 // in their base buffer.
12841 let buffer = buffer_handle.read(cx);
12842 if let Some(base_buffer) = buffer.diff_base_buffer() {
12843 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12844 buffer_handle = base_buffer;
12845 }
12846
12847 if selection.reversed {
12848 mem::swap(&mut range.start, &mut range.end);
12849 }
12850 new_selections_by_buffer
12851 .entry(buffer_handle)
12852 .or_insert((Vec::new(), None))
12853 .0
12854 .push(range)
12855 }
12856 }
12857 }
12858 }
12859
12860 if new_selections_by_buffer.is_empty() {
12861 return;
12862 }
12863
12864 // We defer the pane interaction because we ourselves are a workspace item
12865 // and activating a new item causes the pane to call a method on us reentrantly,
12866 // which panics if we're on the stack.
12867 cx.window_context().defer(move |cx| {
12868 workspace.update(cx, |workspace, cx| {
12869 let pane = if split {
12870 workspace.adjacent_pane(cx)
12871 } else {
12872 workspace.active_pane().clone()
12873 };
12874
12875 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12876 let editor =
12877 workspace.open_project_item::<Self>(pane.clone(), buffer, true, true, cx);
12878 editor.update(cx, |editor, cx| {
12879 let autoscroll = match scroll_offset {
12880 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12881 None => Autoscroll::newest(),
12882 };
12883 let nav_history = editor.nav_history.take();
12884 editor.change_selections(Some(autoscroll), cx, |s| {
12885 s.select_ranges(ranges);
12886 });
12887 editor.nav_history = nav_history;
12888 });
12889 }
12890 })
12891 });
12892 }
12893
12894 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12895 let snapshot = self.buffer.read(cx).read(cx);
12896 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12897 Some(
12898 ranges
12899 .iter()
12900 .map(move |range| {
12901 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12902 })
12903 .collect(),
12904 )
12905 }
12906
12907 fn selection_replacement_ranges(
12908 &self,
12909 range: Range<OffsetUtf16>,
12910 cx: &mut AppContext,
12911 ) -> Vec<Range<OffsetUtf16>> {
12912 let selections = self.selections.all::<OffsetUtf16>(cx);
12913 let newest_selection = selections
12914 .iter()
12915 .max_by_key(|selection| selection.id)
12916 .unwrap();
12917 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12918 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12919 let snapshot = self.buffer.read(cx).read(cx);
12920 selections
12921 .into_iter()
12922 .map(|mut selection| {
12923 selection.start.0 =
12924 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12925 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12926 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12927 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12928 })
12929 .collect()
12930 }
12931
12932 fn report_editor_event(
12933 &self,
12934 operation: &'static str,
12935 file_extension: Option<String>,
12936 cx: &AppContext,
12937 ) {
12938 if cfg!(any(test, feature = "test-support")) {
12939 return;
12940 }
12941
12942 let Some(project) = &self.project else { return };
12943
12944 // If None, we are in a file without an extension
12945 let file = self
12946 .buffer
12947 .read(cx)
12948 .as_singleton()
12949 .and_then(|b| b.read(cx).file());
12950 let file_extension = file_extension.or(file
12951 .as_ref()
12952 .and_then(|file| Path::new(file.file_name(cx)).extension())
12953 .and_then(|e| e.to_str())
12954 .map(|a| a.to_string()));
12955
12956 let vim_mode = cx
12957 .global::<SettingsStore>()
12958 .raw_user_settings()
12959 .get("vim_mode")
12960 == Some(&serde_json::Value::Bool(true));
12961
12962 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12963 == language::language_settings::InlineCompletionProvider::Copilot;
12964 let copilot_enabled_for_language = self
12965 .buffer
12966 .read(cx)
12967 .settings_at(0, cx)
12968 .show_inline_completions;
12969
12970 let project = project.read(cx);
12971 let telemetry = project.client().telemetry().clone();
12972 telemetry.report_editor_event(
12973 file_extension,
12974 vim_mode,
12975 operation,
12976 copilot_enabled,
12977 copilot_enabled_for_language,
12978 project.is_via_ssh(),
12979 )
12980 }
12981
12982 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12983 /// with each line being an array of {text, highlight} objects.
12984 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12985 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12986 return;
12987 };
12988
12989 #[derive(Serialize)]
12990 struct Chunk<'a> {
12991 text: String,
12992 highlight: Option<&'a str>,
12993 }
12994
12995 let snapshot = buffer.read(cx).snapshot();
12996 let range = self
12997 .selected_text_range(false, cx)
12998 .and_then(|selection| {
12999 if selection.range.is_empty() {
13000 None
13001 } else {
13002 Some(selection.range)
13003 }
13004 })
13005 .unwrap_or_else(|| 0..snapshot.len());
13006
13007 let chunks = snapshot.chunks(range, true);
13008 let mut lines = Vec::new();
13009 let mut line: VecDeque<Chunk> = VecDeque::new();
13010
13011 let Some(style) = self.style.as_ref() else {
13012 return;
13013 };
13014
13015 for chunk in chunks {
13016 let highlight = chunk
13017 .syntax_highlight_id
13018 .and_then(|id| id.name(&style.syntax));
13019 let mut chunk_lines = chunk.text.split('\n').peekable();
13020 while let Some(text) = chunk_lines.next() {
13021 let mut merged_with_last_token = false;
13022 if let Some(last_token) = line.back_mut() {
13023 if last_token.highlight == highlight {
13024 last_token.text.push_str(text);
13025 merged_with_last_token = true;
13026 }
13027 }
13028
13029 if !merged_with_last_token {
13030 line.push_back(Chunk {
13031 text: text.into(),
13032 highlight,
13033 });
13034 }
13035
13036 if chunk_lines.peek().is_some() {
13037 if line.len() > 1 && line.front().unwrap().text.is_empty() {
13038 line.pop_front();
13039 }
13040 if line.len() > 1 && line.back().unwrap().text.is_empty() {
13041 line.pop_back();
13042 }
13043
13044 lines.push(mem::take(&mut line));
13045 }
13046 }
13047 }
13048
13049 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
13050 return;
13051 };
13052 cx.write_to_clipboard(ClipboardItem::new_string(lines));
13053 }
13054
13055 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
13056 &self.inlay_hint_cache
13057 }
13058
13059 pub fn replay_insert_event(
13060 &mut self,
13061 text: &str,
13062 relative_utf16_range: Option<Range<isize>>,
13063 cx: &mut ViewContext<Self>,
13064 ) {
13065 if !self.input_enabled {
13066 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13067 return;
13068 }
13069 if let Some(relative_utf16_range) = relative_utf16_range {
13070 let selections = self.selections.all::<OffsetUtf16>(cx);
13071 self.change_selections(None, cx, |s| {
13072 let new_ranges = selections.into_iter().map(|range| {
13073 let start = OffsetUtf16(
13074 range
13075 .head()
13076 .0
13077 .saturating_add_signed(relative_utf16_range.start),
13078 );
13079 let end = OffsetUtf16(
13080 range
13081 .head()
13082 .0
13083 .saturating_add_signed(relative_utf16_range.end),
13084 );
13085 start..end
13086 });
13087 s.select_ranges(new_ranges);
13088 });
13089 }
13090
13091 self.handle_input(text, cx);
13092 }
13093
13094 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
13095 let Some(provider) = self.semantics_provider.as_ref() else {
13096 return false;
13097 };
13098
13099 let mut supports = false;
13100 self.buffer().read(cx).for_each_buffer(|buffer| {
13101 supports |= provider.supports_inlay_hints(buffer, cx);
13102 });
13103 supports
13104 }
13105
13106 pub fn focus(&self, cx: &mut WindowContext) {
13107 cx.focus(&self.focus_handle)
13108 }
13109
13110 pub fn is_focused(&self, cx: &WindowContext) -> bool {
13111 self.focus_handle.is_focused(cx)
13112 }
13113
13114 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
13115 cx.emit(EditorEvent::Focused);
13116
13117 if let Some(descendant) = self
13118 .last_focused_descendant
13119 .take()
13120 .and_then(|descendant| descendant.upgrade())
13121 {
13122 cx.focus(&descendant);
13123 } else {
13124 if let Some(blame) = self.blame.as_ref() {
13125 blame.update(cx, GitBlame::focus)
13126 }
13127
13128 self.blink_manager.update(cx, BlinkManager::enable);
13129 self.show_cursor_names(cx);
13130 self.buffer.update(cx, |buffer, cx| {
13131 buffer.finalize_last_transaction(cx);
13132 if self.leader_peer_id.is_none() {
13133 buffer.set_active_selections(
13134 &self.selections.disjoint_anchors(),
13135 self.selections.line_mode,
13136 self.cursor_shape,
13137 cx,
13138 );
13139 }
13140 });
13141 }
13142 }
13143
13144 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13145 cx.emit(EditorEvent::FocusedIn)
13146 }
13147
13148 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13149 if event.blurred != self.focus_handle {
13150 self.last_focused_descendant = Some(event.blurred);
13151 }
13152 }
13153
13154 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13155 self.blink_manager.update(cx, BlinkManager::disable);
13156 self.buffer
13157 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13158
13159 if let Some(blame) = self.blame.as_ref() {
13160 blame.update(cx, GitBlame::blur)
13161 }
13162 if !self.hover_state.focused(cx) {
13163 hide_hover(self, cx);
13164 }
13165
13166 self.hide_context_menu(cx);
13167 cx.emit(EditorEvent::Blurred);
13168 cx.notify();
13169 }
13170
13171 pub fn register_action<A: Action>(
13172 &mut self,
13173 listener: impl Fn(&A, &mut WindowContext) + 'static,
13174 ) -> Subscription {
13175 let id = self.next_editor_action_id.post_inc();
13176 let listener = Arc::new(listener);
13177 self.editor_actions.borrow_mut().insert(
13178 id,
13179 Box::new(move |cx| {
13180 let cx = cx.window_context();
13181 let listener = listener.clone();
13182 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13183 let action = action.downcast_ref().unwrap();
13184 if phase == DispatchPhase::Bubble {
13185 listener(action, cx)
13186 }
13187 })
13188 }),
13189 );
13190
13191 let editor_actions = self.editor_actions.clone();
13192 Subscription::new(move || {
13193 editor_actions.borrow_mut().remove(&id);
13194 })
13195 }
13196
13197 pub fn file_header_size(&self) -> u32 {
13198 FILE_HEADER_HEIGHT
13199 }
13200
13201 pub fn revert(
13202 &mut self,
13203 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13204 cx: &mut ViewContext<Self>,
13205 ) {
13206 self.buffer().update(cx, |multi_buffer, cx| {
13207 for (buffer_id, changes) in revert_changes {
13208 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13209 buffer.update(cx, |buffer, cx| {
13210 buffer.edit(
13211 changes.into_iter().map(|(range, text)| {
13212 (range, text.to_string().map(Arc::<str>::from))
13213 }),
13214 None,
13215 cx,
13216 );
13217 });
13218 }
13219 }
13220 });
13221 self.change_selections(None, cx, |selections| selections.refresh());
13222 }
13223
13224 pub fn to_pixel_point(
13225 &mut self,
13226 source: multi_buffer::Anchor,
13227 editor_snapshot: &EditorSnapshot,
13228 cx: &mut ViewContext<Self>,
13229 ) -> Option<gpui::Point<Pixels>> {
13230 let source_point = source.to_display_point(editor_snapshot);
13231 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13232 }
13233
13234 pub fn display_to_pixel_point(
13235 &mut self,
13236 source: DisplayPoint,
13237 editor_snapshot: &EditorSnapshot,
13238 cx: &mut ViewContext<Self>,
13239 ) -> Option<gpui::Point<Pixels>> {
13240 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13241 let text_layout_details = self.text_layout_details(cx);
13242 let scroll_top = text_layout_details
13243 .scroll_anchor
13244 .scroll_position(editor_snapshot)
13245 .y;
13246
13247 if source.row().as_f32() < scroll_top.floor() {
13248 return None;
13249 }
13250 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13251 let source_y = line_height * (source.row().as_f32() - scroll_top);
13252 Some(gpui::Point::new(source_x, source_y))
13253 }
13254
13255 pub fn has_active_completions_menu(&self) -> bool {
13256 self.context_menu.read().as_ref().map_or(false, |menu| {
13257 menu.visible() && matches!(menu, ContextMenu::Completions(_))
13258 })
13259 }
13260
13261 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13262 self.addons
13263 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13264 }
13265
13266 pub fn unregister_addon<T: Addon>(&mut self) {
13267 self.addons.remove(&std::any::TypeId::of::<T>());
13268 }
13269
13270 pub fn addon<T: Addon>(&self) -> Option<&T> {
13271 let type_id = std::any::TypeId::of::<T>();
13272 self.addons
13273 .get(&type_id)
13274 .and_then(|item| item.to_any().downcast_ref::<T>())
13275 }
13276}
13277
13278fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13279 let tab_size = tab_size.get() as usize;
13280 let mut width = offset;
13281
13282 for ch in text.chars() {
13283 width += if ch == '\t' {
13284 tab_size - (width % tab_size)
13285 } else {
13286 1
13287 };
13288 }
13289
13290 width - offset
13291}
13292
13293#[cfg(test)]
13294mod tests {
13295 use super::*;
13296
13297 #[test]
13298 fn test_string_size_with_expanded_tabs() {
13299 let nz = |val| NonZeroU32::new(val).unwrap();
13300 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13301 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13302 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13303 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13304 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13305 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13306 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13307 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13308 }
13309}
13310
13311/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13312struct WordBreakingTokenizer<'a> {
13313 input: &'a str,
13314}
13315
13316impl<'a> WordBreakingTokenizer<'a> {
13317 fn new(input: &'a str) -> Self {
13318 Self { input }
13319 }
13320}
13321
13322fn is_char_ideographic(ch: char) -> bool {
13323 use unicode_script::Script::*;
13324 use unicode_script::UnicodeScript;
13325 matches!(ch.script(), Han | Tangut | Yi)
13326}
13327
13328fn is_grapheme_ideographic(text: &str) -> bool {
13329 text.chars().any(is_char_ideographic)
13330}
13331
13332fn is_grapheme_whitespace(text: &str) -> bool {
13333 text.chars().any(|x| x.is_whitespace())
13334}
13335
13336fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13337 text.chars().next().map_or(false, |ch| {
13338 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13339 })
13340}
13341
13342#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13343struct WordBreakToken<'a> {
13344 token: &'a str,
13345 grapheme_len: usize,
13346 is_whitespace: bool,
13347}
13348
13349impl<'a> Iterator for WordBreakingTokenizer<'a> {
13350 /// Yields a span, the count of graphemes in the token, and whether it was
13351 /// whitespace. Note that it also breaks at word boundaries.
13352 type Item = WordBreakToken<'a>;
13353
13354 fn next(&mut self) -> Option<Self::Item> {
13355 use unicode_segmentation::UnicodeSegmentation;
13356 if self.input.is_empty() {
13357 return None;
13358 }
13359
13360 let mut iter = self.input.graphemes(true).peekable();
13361 let mut offset = 0;
13362 let mut graphemes = 0;
13363 if let Some(first_grapheme) = iter.next() {
13364 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13365 offset += first_grapheme.len();
13366 graphemes += 1;
13367 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13368 if let Some(grapheme) = iter.peek().copied() {
13369 if should_stay_with_preceding_ideograph(grapheme) {
13370 offset += grapheme.len();
13371 graphemes += 1;
13372 }
13373 }
13374 } else {
13375 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13376 let mut next_word_bound = words.peek().copied();
13377 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13378 next_word_bound = words.next();
13379 }
13380 while let Some(grapheme) = iter.peek().copied() {
13381 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13382 break;
13383 };
13384 if is_grapheme_whitespace(grapheme) != is_whitespace {
13385 break;
13386 };
13387 offset += grapheme.len();
13388 graphemes += 1;
13389 iter.next();
13390 }
13391 }
13392 let token = &self.input[..offset];
13393 self.input = &self.input[offset..];
13394 if is_whitespace {
13395 Some(WordBreakToken {
13396 token: " ",
13397 grapheme_len: 1,
13398 is_whitespace: true,
13399 })
13400 } else {
13401 Some(WordBreakToken {
13402 token,
13403 grapheme_len: graphemes,
13404 is_whitespace: false,
13405 })
13406 }
13407 } else {
13408 None
13409 }
13410 }
13411}
13412
13413#[test]
13414fn test_word_breaking_tokenizer() {
13415 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13416 ("", &[]),
13417 (" ", &[(" ", 1, true)]),
13418 ("Ʒ", &[("Ʒ", 1, false)]),
13419 ("Ǽ", &[("Ǽ", 1, false)]),
13420 ("⋑", &[("⋑", 1, false)]),
13421 ("⋑⋑", &[("⋑⋑", 2, false)]),
13422 (
13423 "原理，进而",
13424 &[
13425 ("原", 1, false),
13426 ("理，", 2, false),
13427 ("进", 1, false),
13428 ("而", 1, false),
13429 ],
13430 ),
13431 (
13432 "hello world",
13433 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13434 ),
13435 (
13436 "hello, world",
13437 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13438 ),
13439 (
13440 " hello world",
13441 &[
13442 (" ", 1, true),
13443 ("hello", 5, false),
13444 (" ", 1, true),
13445 ("world", 5, false),
13446 ],
13447 ),
13448 (
13449 "这是什么 \n 钢笔",
13450 &[
13451 ("这", 1, false),
13452 ("是", 1, false),
13453 ("什", 1, false),
13454 ("么", 1, false),
13455 (" ", 1, true),
13456 ("钢", 1, false),
13457 ("笔", 1, false),
13458 ],
13459 ),
13460 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13461 ];
13462
13463 for (input, result) in tests {
13464 assert_eq!(
13465 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13466 result
13467 .iter()
13468 .copied()
13469 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13470 token,
13471 grapheme_len,
13472 is_whitespace,
13473 })
13474 .collect::<Vec<_>>()
13475 );
13476 }
13477}
13478
13479fn wrap_with_prefix(
13480 line_prefix: String,
13481 unwrapped_text: String,
13482 wrap_column: usize,
13483 tab_size: NonZeroU32,
13484) -> String {
13485 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13486 let mut wrapped_text = String::new();
13487 let mut current_line = line_prefix.clone();
13488
13489 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13490 let mut current_line_len = line_prefix_len;
13491 for WordBreakToken {
13492 token,
13493 grapheme_len,
13494 is_whitespace,
13495 } in tokenizer
13496 {
13497 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13498 wrapped_text.push_str(current_line.trim_end());
13499 wrapped_text.push('\n');
13500 current_line.truncate(line_prefix.len());
13501 current_line_len = line_prefix_len;
13502 if !is_whitespace {
13503 current_line.push_str(token);
13504 current_line_len += grapheme_len;
13505 }
13506 } else if !is_whitespace {
13507 current_line.push_str(token);
13508 current_line_len += grapheme_len;
13509 } else if current_line_len != line_prefix_len {
13510 current_line.push(' ');
13511 current_line_len += 1;
13512 }
13513 }
13514
13515 if !current_line.is_empty() {
13516 wrapped_text.push_str(¤t_line);
13517 }
13518 wrapped_text
13519}
13520
13521#[test]
13522fn test_wrap_with_prefix() {
13523 assert_eq!(
13524 wrap_with_prefix(
13525 "# ".to_string(),
13526 "abcdefg".to_string(),
13527 4,
13528 NonZeroU32::new(4).unwrap()
13529 ),
13530 "# abcdefg"
13531 );
13532 assert_eq!(
13533 wrap_with_prefix(
13534 "".to_string(),
13535 "\thello world".to_string(),
13536 8,
13537 NonZeroU32::new(4).unwrap()
13538 ),
13539 "hello\nworld"
13540 );
13541 assert_eq!(
13542 wrap_with_prefix(
13543 "// ".to_string(),
13544 "xx \nyy zz aa bb cc".to_string(),
13545 12,
13546 NonZeroU32::new(4).unwrap()
13547 ),
13548 "// xx yy zz\n// aa bb cc"
13549 );
13550 assert_eq!(
13551 wrap_with_prefix(
13552 String::new(),
13553 "这是什么 \n 钢笔".to_string(),
13554 3,
13555 NonZeroU32::new(4).unwrap()
13556 ),
13557 "这是什\n么 钢\n笔"
13558 );
13559}
13560
13561fn hunks_for_selections(
13562 multi_buffer_snapshot: &MultiBufferSnapshot,
13563 selections: &[Selection<Anchor>],
13564) -> Vec<MultiBufferDiffHunk> {
13565 let buffer_rows_for_selections = selections.iter().map(|selection| {
13566 let head = selection.head();
13567 let tail = selection.tail();
13568 let start = MultiBufferRow(tail.to_point(multi_buffer_snapshot).row);
13569 let end = MultiBufferRow(head.to_point(multi_buffer_snapshot).row);
13570 if start > end {
13571 end..start
13572 } else {
13573 start..end
13574 }
13575 });
13576
13577 hunks_for_rows(buffer_rows_for_selections, multi_buffer_snapshot)
13578}
13579
13580pub fn hunks_for_rows(
13581 rows: impl Iterator<Item = Range<MultiBufferRow>>,
13582 multi_buffer_snapshot: &MultiBufferSnapshot,
13583) -> Vec<MultiBufferDiffHunk> {
13584 let mut hunks = Vec::new();
13585 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13586 HashMap::default();
13587 for selected_multi_buffer_rows in rows {
13588 let query_rows =
13589 selected_multi_buffer_rows.start..selected_multi_buffer_rows.end.next_row();
13590 for hunk in multi_buffer_snapshot.git_diff_hunks_in_range(query_rows.clone()) {
13591 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13592 // when the caret is just above or just below the deleted hunk.
13593 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13594 let related_to_selection = if allow_adjacent {
13595 hunk.row_range.overlaps(&query_rows)
13596 || hunk.row_range.start == query_rows.end
13597 || hunk.row_range.end == query_rows.start
13598 } else {
13599 // `selected_multi_buffer_rows` are inclusive (e.g. [2..2] means 2nd row is selected)
13600 // `hunk.row_range` is exclusive (e.g. [2..3] means 2nd row is selected)
13601 hunk.row_range.overlaps(&selected_multi_buffer_rows)
13602 || selected_multi_buffer_rows.end == hunk.row_range.start
13603 };
13604 if related_to_selection {
13605 if !processed_buffer_rows
13606 .entry(hunk.buffer_id)
13607 .or_default()
13608 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13609 {
13610 continue;
13611 }
13612 hunks.push(hunk);
13613 }
13614 }
13615 }
13616
13617 hunks
13618}
13619
13620pub trait CollaborationHub {
13621 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13622 fn user_participant_indices<'a>(
13623 &self,
13624 cx: &'a AppContext,
13625 ) -> &'a HashMap<u64, ParticipantIndex>;
13626 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13627}
13628
13629impl CollaborationHub for Model<Project> {
13630 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13631 self.read(cx).collaborators()
13632 }
13633
13634 fn user_participant_indices<'a>(
13635 &self,
13636 cx: &'a AppContext,
13637 ) -> &'a HashMap<u64, ParticipantIndex> {
13638 self.read(cx).user_store().read(cx).participant_indices()
13639 }
13640
13641 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13642 let this = self.read(cx);
13643 let user_ids = this.collaborators().values().map(|c| c.user_id);
13644 this.user_store().read_with(cx, |user_store, cx| {
13645 user_store.participant_names(user_ids, cx)
13646 })
13647 }
13648}
13649
13650pub trait SemanticsProvider {
13651 fn hover(
13652 &self,
13653 buffer: &Model<Buffer>,
13654 position: text::Anchor,
13655 cx: &mut AppContext,
13656 ) -> Option<Task<Vec<project::Hover>>>;
13657
13658 fn inlay_hints(
13659 &self,
13660 buffer_handle: Model<Buffer>,
13661 range: Range<text::Anchor>,
13662 cx: &mut AppContext,
13663 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13664
13665 fn resolve_inlay_hint(
13666 &self,
13667 hint: InlayHint,
13668 buffer_handle: Model<Buffer>,
13669 server_id: LanguageServerId,
13670 cx: &mut AppContext,
13671 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13672
13673 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13674
13675 fn document_highlights(
13676 &self,
13677 buffer: &Model<Buffer>,
13678 position: text::Anchor,
13679 cx: &mut AppContext,
13680 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13681
13682 fn definitions(
13683 &self,
13684 buffer: &Model<Buffer>,
13685 position: text::Anchor,
13686 kind: GotoDefinitionKind,
13687 cx: &mut AppContext,
13688 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13689
13690 fn range_for_rename(
13691 &self,
13692 buffer: &Model<Buffer>,
13693 position: text::Anchor,
13694 cx: &mut AppContext,
13695 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13696
13697 fn perform_rename(
13698 &self,
13699 buffer: &Model<Buffer>,
13700 position: text::Anchor,
13701 new_name: String,
13702 cx: &mut AppContext,
13703 ) -> Option<Task<Result<ProjectTransaction>>>;
13704}
13705
13706pub trait CompletionProvider {
13707 fn completions(
13708 &self,
13709 buffer: &Model<Buffer>,
13710 buffer_position: text::Anchor,
13711 trigger: CompletionContext,
13712 cx: &mut ViewContext<Editor>,
13713 ) -> Task<Result<Vec<Completion>>>;
13714
13715 fn resolve_completions(
13716 &self,
13717 buffer: Model<Buffer>,
13718 completion_indices: Vec<usize>,
13719 completions: Arc<RwLock<Box<[Completion]>>>,
13720 cx: &mut ViewContext<Editor>,
13721 ) -> Task<Result<bool>>;
13722
13723 fn apply_additional_edits_for_completion(
13724 &self,
13725 buffer: Model<Buffer>,
13726 completion: Completion,
13727 push_to_history: bool,
13728 cx: &mut ViewContext<Editor>,
13729 ) -> Task<Result<Option<language::Transaction>>>;
13730
13731 fn is_completion_trigger(
13732 &self,
13733 buffer: &Model<Buffer>,
13734 position: language::Anchor,
13735 text: &str,
13736 trigger_in_words: bool,
13737 cx: &mut ViewContext<Editor>,
13738 ) -> bool;
13739
13740 fn sort_completions(&self) -> bool {
13741 true
13742 }
13743}
13744
13745pub trait CodeActionProvider {
13746 fn code_actions(
13747 &self,
13748 buffer: &Model<Buffer>,
13749 range: Range<text::Anchor>,
13750 cx: &mut WindowContext,
13751 ) -> Task<Result<Vec<CodeAction>>>;
13752
13753 fn apply_code_action(
13754 &self,
13755 buffer_handle: Model<Buffer>,
13756 action: CodeAction,
13757 excerpt_id: ExcerptId,
13758 push_to_history: bool,
13759 cx: &mut WindowContext,
13760 ) -> Task<Result<ProjectTransaction>>;
13761}
13762
13763impl CodeActionProvider for Model<Project> {
13764 fn code_actions(
13765 &self,
13766 buffer: &Model<Buffer>,
13767 range: Range<text::Anchor>,
13768 cx: &mut WindowContext,
13769 ) -> Task<Result<Vec<CodeAction>>> {
13770 self.update(cx, |project, cx| {
13771 project.code_actions(buffer, range, None, cx)
13772 })
13773 }
13774
13775 fn apply_code_action(
13776 &self,
13777 buffer_handle: Model<Buffer>,
13778 action: CodeAction,
13779 _excerpt_id: ExcerptId,
13780 push_to_history: bool,
13781 cx: &mut WindowContext,
13782 ) -> Task<Result<ProjectTransaction>> {
13783 self.update(cx, |project, cx| {
13784 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13785 })
13786 }
13787}
13788
13789fn snippet_completions(
13790 project: &Project,
13791 buffer: &Model<Buffer>,
13792 buffer_position: text::Anchor,
13793 cx: &mut AppContext,
13794) -> Vec<Completion> {
13795 let language = buffer.read(cx).language_at(buffer_position);
13796 let language_name = language.as_ref().map(|language| language.lsp_id());
13797 let snippet_store = project.snippets().read(cx);
13798 let snippets = snippet_store.snippets_for(language_name, cx);
13799
13800 if snippets.is_empty() {
13801 return vec![];
13802 }
13803 let snapshot = buffer.read(cx).text_snapshot();
13804 let chars = snapshot.reversed_chars_for_range(text::Anchor::MIN..buffer_position);
13805
13806 let scope = language.map(|language| language.default_scope());
13807 let classifier = CharClassifier::new(scope).for_completion(true);
13808 let mut last_word = chars
13809 .take_while(|c| classifier.is_word(*c))
13810 .collect::<String>();
13811 last_word = last_word.chars().rev().collect();
13812 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13813 let to_lsp = |point: &text::Anchor| {
13814 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13815 point_to_lsp(end)
13816 };
13817 let lsp_end = to_lsp(&buffer_position);
13818 snippets
13819 .into_iter()
13820 .filter_map(|snippet| {
13821 let matching_prefix = snippet
13822 .prefix
13823 .iter()
13824 .find(|prefix| prefix.starts_with(&last_word))?;
13825 let start = as_offset - last_word.len();
13826 let start = snapshot.anchor_before(start);
13827 let range = start..buffer_position;
13828 let lsp_start = to_lsp(&start);
13829 let lsp_range = lsp::Range {
13830 start: lsp_start,
13831 end: lsp_end,
13832 };
13833 Some(Completion {
13834 old_range: range,
13835 new_text: snippet.body.clone(),
13836 label: CodeLabel {
13837 text: matching_prefix.clone(),
13838 runs: vec![],
13839 filter_range: 0..matching_prefix.len(),
13840 },
13841 server_id: LanguageServerId(usize::MAX),
13842 documentation: snippet.description.clone().map(Documentation::SingleLine),
13843 lsp_completion: lsp::CompletionItem {
13844 label: snippet.prefix.first().unwrap().clone(),
13845 kind: Some(CompletionItemKind::SNIPPET),
13846 label_details: snippet.description.as_ref().map(|description| {
13847 lsp::CompletionItemLabelDetails {
13848 detail: Some(description.clone()),
13849 description: None,
13850 }
13851 }),
13852 insert_text_format: Some(InsertTextFormat::SNIPPET),
13853 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13854 lsp::InsertReplaceEdit {
13855 new_text: snippet.body.clone(),
13856 insert: lsp_range,
13857 replace: lsp_range,
13858 },
13859 )),
13860 filter_text: Some(snippet.body.clone()),
13861 sort_text: Some(char::MAX.to_string()),
13862 ..Default::default()
13863 },
13864 confirm: None,
13865 })
13866 })
13867 .collect()
13868}
13869
13870impl CompletionProvider for Model<Project> {
13871 fn completions(
13872 &self,
13873 buffer: &Model<Buffer>,
13874 buffer_position: text::Anchor,
13875 options: CompletionContext,
13876 cx: &mut ViewContext<Editor>,
13877 ) -> Task<Result<Vec<Completion>>> {
13878 self.update(cx, |project, cx| {
13879 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13880 let project_completions = project.completions(buffer, buffer_position, options, cx);
13881 cx.background_executor().spawn(async move {
13882 let mut completions = project_completions.await?;
13883 //let snippets = snippets.into_iter().;
13884 completions.extend(snippets);
13885 Ok(completions)
13886 })
13887 })
13888 }
13889
13890 fn resolve_completions(
13891 &self,
13892 buffer: Model<Buffer>,
13893 completion_indices: Vec<usize>,
13894 completions: Arc<RwLock<Box<[Completion]>>>,
13895 cx: &mut ViewContext<Editor>,
13896 ) -> Task<Result<bool>> {
13897 self.update(cx, |project, cx| {
13898 project.resolve_completions(buffer, completion_indices, completions, cx)
13899 })
13900 }
13901
13902 fn apply_additional_edits_for_completion(
13903 &self,
13904 buffer: Model<Buffer>,
13905 completion: Completion,
13906 push_to_history: bool,
13907 cx: &mut ViewContext<Editor>,
13908 ) -> Task<Result<Option<language::Transaction>>> {
13909 self.update(cx, |project, cx| {
13910 project.apply_additional_edits_for_completion(buffer, completion, push_to_history, cx)
13911 })
13912 }
13913
13914 fn is_completion_trigger(
13915 &self,
13916 buffer: &Model<Buffer>,
13917 position: language::Anchor,
13918 text: &str,
13919 trigger_in_words: bool,
13920 cx: &mut ViewContext<Editor>,
13921 ) -> bool {
13922 if !EditorSettings::get_global(cx).show_completions_on_input {
13923 return false;
13924 }
13925
13926 let mut chars = text.chars();
13927 let char = if let Some(char) = chars.next() {
13928 char
13929 } else {
13930 return false;
13931 };
13932 if chars.next().is_some() {
13933 return false;
13934 }
13935
13936 let buffer = buffer.read(cx);
13937 let classifier = buffer
13938 .snapshot()
13939 .char_classifier_at(position)
13940 .for_completion(true);
13941 if trigger_in_words && classifier.is_word(char) {
13942 return true;
13943 }
13944
13945 buffer.completion_triggers().contains(text)
13946 }
13947}
13948
13949impl SemanticsProvider for Model<Project> {
13950 fn hover(
13951 &self,
13952 buffer: &Model<Buffer>,
13953 position: text::Anchor,
13954 cx: &mut AppContext,
13955 ) -> Option<Task<Vec<project::Hover>>> {
13956 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13957 }
13958
13959 fn document_highlights(
13960 &self,
13961 buffer: &Model<Buffer>,
13962 position: text::Anchor,
13963 cx: &mut AppContext,
13964 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13965 Some(self.update(cx, |project, cx| {
13966 project.document_highlights(buffer, position, cx)
13967 }))
13968 }
13969
13970 fn definitions(
13971 &self,
13972 buffer: &Model<Buffer>,
13973 position: text::Anchor,
13974 kind: GotoDefinitionKind,
13975 cx: &mut AppContext,
13976 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13977 Some(self.update(cx, |project, cx| match kind {
13978 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13979 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13980 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13981 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13982 }))
13983 }
13984
13985 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13986 // TODO: make this work for remote projects
13987 self.read(cx)
13988 .language_servers_for_buffer(buffer.read(cx), cx)
13989 .any(
13990 |(_, server)| match server.capabilities().inlay_hint_provider {
13991 Some(lsp::OneOf::Left(enabled)) => enabled,
13992 Some(lsp::OneOf::Right(_)) => true,
13993 None => false,
13994 },
13995 )
13996 }
13997
13998 fn inlay_hints(
13999 &self,
14000 buffer_handle: Model<Buffer>,
14001 range: Range<text::Anchor>,
14002 cx: &mut AppContext,
14003 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
14004 Some(self.update(cx, |project, cx| {
14005 project.inlay_hints(buffer_handle, range, cx)
14006 }))
14007 }
14008
14009 fn resolve_inlay_hint(
14010 &self,
14011 hint: InlayHint,
14012 buffer_handle: Model<Buffer>,
14013 server_id: LanguageServerId,
14014 cx: &mut AppContext,
14015 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14016 Some(self.update(cx, |project, cx| {
14017 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14018 }))
14019 }
14020
14021 fn range_for_rename(
14022 &self,
14023 buffer: &Model<Buffer>,
14024 position: text::Anchor,
14025 cx: &mut AppContext,
14026 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14027 Some(self.update(cx, |project, cx| {
14028 project.prepare_rename(buffer.clone(), position, cx)
14029 }))
14030 }
14031
14032 fn perform_rename(
14033 &self,
14034 buffer: &Model<Buffer>,
14035 position: text::Anchor,
14036 new_name: String,
14037 cx: &mut AppContext,
14038 ) -> Option<Task<Result<ProjectTransaction>>> {
14039 Some(self.update(cx, |project, cx| {
14040 project.perform_rename(buffer.clone(), position, new_name, cx)
14041 }))
14042 }
14043}
14044
14045fn inlay_hint_settings(
14046 location: Anchor,
14047 snapshot: &MultiBufferSnapshot,
14048 cx: &mut ViewContext<'_, Editor>,
14049) -> InlayHintSettings {
14050 let file = snapshot.file_at(location);
14051 let language = snapshot.language_at(location).map(|l| l.name());
14052 language_settings(language, file, cx).inlay_hints
14053}
14054
14055fn consume_contiguous_rows(
14056 contiguous_row_selections: &mut Vec<Selection<Point>>,
14057 selection: &Selection<Point>,
14058 display_map: &DisplaySnapshot,
14059 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14060) -> (MultiBufferRow, MultiBufferRow) {
14061 contiguous_row_selections.push(selection.clone());
14062 let start_row = MultiBufferRow(selection.start.row);
14063 let mut end_row = ending_row(selection, display_map);
14064
14065 while let Some(next_selection) = selections.peek() {
14066 if next_selection.start.row <= end_row.0 {
14067 end_row = ending_row(next_selection, display_map);
14068 contiguous_row_selections.push(selections.next().unwrap().clone());
14069 } else {
14070 break;
14071 }
14072 }
14073 (start_row, end_row)
14074}
14075
14076fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14077 if next_selection.end.column > 0 || next_selection.is_empty() {
14078 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14079 } else {
14080 MultiBufferRow(next_selection.end.row)
14081 }
14082}
14083
14084impl EditorSnapshot {
14085 pub fn remote_selections_in_range<'a>(
14086 &'a self,
14087 range: &'a Range<Anchor>,
14088 collaboration_hub: &dyn CollaborationHub,
14089 cx: &'a AppContext,
14090 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14091 let participant_names = collaboration_hub.user_names(cx);
14092 let participant_indices = collaboration_hub.user_participant_indices(cx);
14093 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14094 let collaborators_by_replica_id = collaborators_by_peer_id
14095 .iter()
14096 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14097 .collect::<HashMap<_, _>>();
14098 self.buffer_snapshot
14099 .selections_in_range(range, false)
14100 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14101 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14102 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14103 let user_name = participant_names.get(&collaborator.user_id).cloned();
14104 Some(RemoteSelection {
14105 replica_id,
14106 selection,
14107 cursor_shape,
14108 line_mode,
14109 participant_index,
14110 peer_id: collaborator.peer_id,
14111 user_name,
14112 })
14113 })
14114 }
14115
14116 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14117 self.display_snapshot.buffer_snapshot.language_at(position)
14118 }
14119
14120 pub fn is_focused(&self) -> bool {
14121 self.is_focused
14122 }
14123
14124 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14125 self.placeholder_text.as_ref()
14126 }
14127
14128 pub fn scroll_position(&self) -> gpui::Point<f32> {
14129 self.scroll_anchor.scroll_position(&self.display_snapshot)
14130 }
14131
14132 fn gutter_dimensions(
14133 &self,
14134 font_id: FontId,
14135 font_size: Pixels,
14136 em_width: Pixels,
14137 em_advance: Pixels,
14138 max_line_number_width: Pixels,
14139 cx: &AppContext,
14140 ) -> GutterDimensions {
14141 if !self.show_gutter {
14142 return GutterDimensions::default();
14143 }
14144 let descent = cx.text_system().descent(font_id, font_size);
14145
14146 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14147 matches!(
14148 ProjectSettings::get_global(cx).git.git_gutter,
14149 Some(GitGutterSetting::TrackedFiles)
14150 )
14151 });
14152 let gutter_settings = EditorSettings::get_global(cx).gutter;
14153 let show_line_numbers = self
14154 .show_line_numbers
14155 .unwrap_or(gutter_settings.line_numbers);
14156 let line_gutter_width = if show_line_numbers {
14157 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14158 let min_width_for_number_on_gutter = em_advance * 4.0;
14159 max_line_number_width.max(min_width_for_number_on_gutter)
14160 } else {
14161 0.0.into()
14162 };
14163
14164 let show_code_actions = self
14165 .show_code_actions
14166 .unwrap_or(gutter_settings.code_actions);
14167
14168 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14169
14170 let git_blame_entries_width =
14171 self.git_blame_gutter_max_author_length
14172 .map(|max_author_length| {
14173 // Length of the author name, but also space for the commit hash,
14174 // the spacing and the timestamp.
14175 let max_char_count = max_author_length
14176 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14177 + 7 // length of commit sha
14178 + 14 // length of max relative timestamp ("60 minutes ago")
14179 + 4; // gaps and margins
14180
14181 em_advance * max_char_count
14182 });
14183
14184 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14185 left_padding += if show_code_actions || show_runnables {
14186 em_width * 3.0
14187 } else if show_git_gutter && show_line_numbers {
14188 em_width * 2.0
14189 } else if show_git_gutter || show_line_numbers {
14190 em_width
14191 } else {
14192 px(0.)
14193 };
14194
14195 let right_padding = if gutter_settings.folds && show_line_numbers {
14196 em_width * 4.0
14197 } else if gutter_settings.folds {
14198 em_width * 3.0
14199 } else if show_line_numbers {
14200 em_width
14201 } else {
14202 px(0.)
14203 };
14204
14205 GutterDimensions {
14206 left_padding,
14207 right_padding,
14208 width: line_gutter_width + left_padding + right_padding,
14209 margin: -descent,
14210 git_blame_entries_width,
14211 }
14212 }
14213
14214 pub fn render_crease_toggle(
14215 &self,
14216 buffer_row: MultiBufferRow,
14217 row_contains_cursor: bool,
14218 editor: View<Editor>,
14219 cx: &mut WindowContext,
14220 ) -> Option<AnyElement> {
14221 let folded = self.is_line_folded(buffer_row);
14222 let mut is_foldable = false;
14223
14224 if let Some(crease) = self
14225 .crease_snapshot
14226 .query_row(buffer_row, &self.buffer_snapshot)
14227 {
14228 is_foldable = true;
14229 match crease {
14230 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14231 if let Some(render_toggle) = render_toggle {
14232 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14233 if folded {
14234 editor.update(cx, |editor, cx| {
14235 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14236 });
14237 } else {
14238 editor.update(cx, |editor, cx| {
14239 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14240 });
14241 }
14242 });
14243 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14244 }
14245 }
14246 }
14247 }
14248
14249 is_foldable |= self.starts_indent(buffer_row);
14250
14251 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14252 Some(
14253 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14254 .selected(folded)
14255 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14256 if folded {
14257 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14258 } else {
14259 this.fold_at(&FoldAt { buffer_row }, cx);
14260 }
14261 }))
14262 .into_any_element(),
14263 )
14264 } else {
14265 None
14266 }
14267 }
14268
14269 pub fn render_crease_trailer(
14270 &self,
14271 buffer_row: MultiBufferRow,
14272 cx: &mut WindowContext,
14273 ) -> Option<AnyElement> {
14274 let folded = self.is_line_folded(buffer_row);
14275 if let Crease::Inline { render_trailer, .. } = self
14276 .crease_snapshot
14277 .query_row(buffer_row, &self.buffer_snapshot)?
14278 {
14279 let render_trailer = render_trailer.as_ref()?;
14280 Some(render_trailer(buffer_row, folded, cx))
14281 } else {
14282 None
14283 }
14284 }
14285}
14286
14287impl Deref for EditorSnapshot {
14288 type Target = DisplaySnapshot;
14289
14290 fn deref(&self) -> &Self::Target {
14291 &self.display_snapshot
14292 }
14293}
14294
14295#[derive(Clone, Debug, PartialEq, Eq)]
14296pub enum EditorEvent {
14297 InputIgnored {
14298 text: Arc<str>,
14299 },
14300 InputHandled {
14301 utf16_range_to_replace: Option<Range<isize>>,
14302 text: Arc<str>,
14303 },
14304 ExcerptsAdded {
14305 buffer: Model<Buffer>,
14306 predecessor: ExcerptId,
14307 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14308 },
14309 ExcerptsRemoved {
14310 ids: Vec<ExcerptId>,
14311 },
14312 ExcerptsEdited {
14313 ids: Vec<ExcerptId>,
14314 },
14315 ExcerptsExpanded {
14316 ids: Vec<ExcerptId>,
14317 },
14318 BufferEdited,
14319 Edited {
14320 transaction_id: clock::Lamport,
14321 },
14322 Reparsed(BufferId),
14323 Focused,
14324 FocusedIn,
14325 Blurred,
14326 DirtyChanged,
14327 Saved,
14328 TitleChanged,
14329 DiffBaseChanged,
14330 SelectionsChanged {
14331 local: bool,
14332 },
14333 ScrollPositionChanged {
14334 local: bool,
14335 autoscroll: bool,
14336 },
14337 Closed,
14338 TransactionUndone {
14339 transaction_id: clock::Lamport,
14340 },
14341 TransactionBegun {
14342 transaction_id: clock::Lamport,
14343 },
14344 Reloaded,
14345 CursorShapeChanged,
14346}
14347
14348impl EventEmitter<EditorEvent> for Editor {}
14349
14350impl FocusableView for Editor {
14351 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14352 self.focus_handle.clone()
14353 }
14354}
14355
14356impl Render for Editor {
14357 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14358 let settings = ThemeSettings::get_global(cx);
14359
14360 let mut text_style = match self.mode {
14361 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14362 color: cx.theme().colors().editor_foreground,
14363 font_family: settings.ui_font.family.clone(),
14364 font_features: settings.ui_font.features.clone(),
14365 font_fallbacks: settings.ui_font.fallbacks.clone(),
14366 font_size: rems(0.875).into(),
14367 font_weight: settings.ui_font.weight,
14368 line_height: relative(settings.buffer_line_height.value()),
14369 ..Default::default()
14370 },
14371 EditorMode::Full => TextStyle {
14372 color: cx.theme().colors().editor_foreground,
14373 font_family: settings.buffer_font.family.clone(),
14374 font_features: settings.buffer_font.features.clone(),
14375 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14376 font_size: settings.buffer_font_size(cx).into(),
14377 font_weight: settings.buffer_font.weight,
14378 line_height: relative(settings.buffer_line_height.value()),
14379 ..Default::default()
14380 },
14381 };
14382 if let Some(text_style_refinement) = &self.text_style_refinement {
14383 text_style.refine(text_style_refinement)
14384 }
14385
14386 let background = match self.mode {
14387 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14388 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14389 EditorMode::Full => cx.theme().colors().editor_background,
14390 };
14391
14392 EditorElement::new(
14393 cx.view(),
14394 EditorStyle {
14395 background,
14396 local_player: cx.theme().players().local(),
14397 text: text_style,
14398 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14399 syntax: cx.theme().syntax().clone(),
14400 status: cx.theme().status().clone(),
14401 inlay_hints_style: make_inlay_hints_style(cx),
14402 suggestions_style: HighlightStyle {
14403 color: Some(cx.theme().status().predictive),
14404 ..HighlightStyle::default()
14405 },
14406 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14407 },
14408 )
14409 }
14410}
14411
14412impl ViewInputHandler for Editor {
14413 fn text_for_range(
14414 &mut self,
14415 range_utf16: Range<usize>,
14416 adjusted_range: &mut Option<Range<usize>>,
14417 cx: &mut ViewContext<Self>,
14418 ) -> Option<String> {
14419 let snapshot = self.buffer.read(cx).read(cx);
14420 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14421 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14422 if (start.0..end.0) != range_utf16 {
14423 adjusted_range.replace(start.0..end.0);
14424 }
14425 Some(snapshot.text_for_range(start..end).collect())
14426 }
14427
14428 fn selected_text_range(
14429 &mut self,
14430 ignore_disabled_input: bool,
14431 cx: &mut ViewContext<Self>,
14432 ) -> Option<UTF16Selection> {
14433 // Prevent the IME menu from appearing when holding down an alphabetic key
14434 // while input is disabled.
14435 if !ignore_disabled_input && !self.input_enabled {
14436 return None;
14437 }
14438
14439 let selection = self.selections.newest::<OffsetUtf16>(cx);
14440 let range = selection.range();
14441
14442 Some(UTF16Selection {
14443 range: range.start.0..range.end.0,
14444 reversed: selection.reversed,
14445 })
14446 }
14447
14448 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14449 let snapshot = self.buffer.read(cx).read(cx);
14450 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14451 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14452 }
14453
14454 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14455 self.clear_highlights::<InputComposition>(cx);
14456 self.ime_transaction.take();
14457 }
14458
14459 fn replace_text_in_range(
14460 &mut self,
14461 range_utf16: Option<Range<usize>>,
14462 text: &str,
14463 cx: &mut ViewContext<Self>,
14464 ) {
14465 if !self.input_enabled {
14466 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14467 return;
14468 }
14469
14470 self.transact(cx, |this, cx| {
14471 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14472 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14473 Some(this.selection_replacement_ranges(range_utf16, cx))
14474 } else {
14475 this.marked_text_ranges(cx)
14476 };
14477
14478 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14479 let newest_selection_id = this.selections.newest_anchor().id;
14480 this.selections
14481 .all::<OffsetUtf16>(cx)
14482 .iter()
14483 .zip(ranges_to_replace.iter())
14484 .find_map(|(selection, range)| {
14485 if selection.id == newest_selection_id {
14486 Some(
14487 (range.start.0 as isize - selection.head().0 as isize)
14488 ..(range.end.0 as isize - selection.head().0 as isize),
14489 )
14490 } else {
14491 None
14492 }
14493 })
14494 });
14495
14496 cx.emit(EditorEvent::InputHandled {
14497 utf16_range_to_replace: range_to_replace,
14498 text: text.into(),
14499 });
14500
14501 if let Some(new_selected_ranges) = new_selected_ranges {
14502 this.change_selections(None, cx, |selections| {
14503 selections.select_ranges(new_selected_ranges)
14504 });
14505 this.backspace(&Default::default(), cx);
14506 }
14507
14508 this.handle_input(text, cx);
14509 });
14510
14511 if let Some(transaction) = self.ime_transaction {
14512 self.buffer.update(cx, |buffer, cx| {
14513 buffer.group_until_transaction(transaction, cx);
14514 });
14515 }
14516
14517 self.unmark_text(cx);
14518 }
14519
14520 fn replace_and_mark_text_in_range(
14521 &mut self,
14522 range_utf16: Option<Range<usize>>,
14523 text: &str,
14524 new_selected_range_utf16: Option<Range<usize>>,
14525 cx: &mut ViewContext<Self>,
14526 ) {
14527 if !self.input_enabled {
14528 return;
14529 }
14530
14531 let transaction = self.transact(cx, |this, cx| {
14532 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14533 let snapshot = this.buffer.read(cx).read(cx);
14534 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14535 for marked_range in &mut marked_ranges {
14536 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14537 marked_range.start.0 += relative_range_utf16.start;
14538 marked_range.start =
14539 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14540 marked_range.end =
14541 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14542 }
14543 }
14544 Some(marked_ranges)
14545 } else if let Some(range_utf16) = range_utf16 {
14546 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14547 Some(this.selection_replacement_ranges(range_utf16, cx))
14548 } else {
14549 None
14550 };
14551
14552 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14553 let newest_selection_id = this.selections.newest_anchor().id;
14554 this.selections
14555 .all::<OffsetUtf16>(cx)
14556 .iter()
14557 .zip(ranges_to_replace.iter())
14558 .find_map(|(selection, range)| {
14559 if selection.id == newest_selection_id {
14560 Some(
14561 (range.start.0 as isize - selection.head().0 as isize)
14562 ..(range.end.0 as isize - selection.head().0 as isize),
14563 )
14564 } else {
14565 None
14566 }
14567 })
14568 });
14569
14570 cx.emit(EditorEvent::InputHandled {
14571 utf16_range_to_replace: range_to_replace,
14572 text: text.into(),
14573 });
14574
14575 if let Some(ranges) = ranges_to_replace {
14576 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14577 }
14578
14579 let marked_ranges = {
14580 let snapshot = this.buffer.read(cx).read(cx);
14581 this.selections
14582 .disjoint_anchors()
14583 .iter()
14584 .map(|selection| {
14585 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14586 })
14587 .collect::<Vec<_>>()
14588 };
14589
14590 if text.is_empty() {
14591 this.unmark_text(cx);
14592 } else {
14593 this.highlight_text::<InputComposition>(
14594 marked_ranges.clone(),
14595 HighlightStyle {
14596 underline: Some(UnderlineStyle {
14597 thickness: px(1.),
14598 color: None,
14599 wavy: false,
14600 }),
14601 ..Default::default()
14602 },
14603 cx,
14604 );
14605 }
14606
14607 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14608 let use_autoclose = this.use_autoclose;
14609 let use_auto_surround = this.use_auto_surround;
14610 this.set_use_autoclose(false);
14611 this.set_use_auto_surround(false);
14612 this.handle_input(text, cx);
14613 this.set_use_autoclose(use_autoclose);
14614 this.set_use_auto_surround(use_auto_surround);
14615
14616 if let Some(new_selected_range) = new_selected_range_utf16 {
14617 let snapshot = this.buffer.read(cx).read(cx);
14618 let new_selected_ranges = marked_ranges
14619 .into_iter()
14620 .map(|marked_range| {
14621 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14622 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14623 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14624 snapshot.clip_offset_utf16(new_start, Bias::Left)
14625 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14626 })
14627 .collect::<Vec<_>>();
14628
14629 drop(snapshot);
14630 this.change_selections(None, cx, |selections| {
14631 selections.select_ranges(new_selected_ranges)
14632 });
14633 }
14634 });
14635
14636 self.ime_transaction = self.ime_transaction.or(transaction);
14637 if let Some(transaction) = self.ime_transaction {
14638 self.buffer.update(cx, |buffer, cx| {
14639 buffer.group_until_transaction(transaction, cx);
14640 });
14641 }
14642
14643 if self.text_highlights::<InputComposition>(cx).is_none() {
14644 self.ime_transaction.take();
14645 }
14646 }
14647
14648 fn bounds_for_range(
14649 &mut self,
14650 range_utf16: Range<usize>,
14651 element_bounds: gpui::Bounds<Pixels>,
14652 cx: &mut ViewContext<Self>,
14653 ) -> Option<gpui::Bounds<Pixels>> {
14654 let text_layout_details = self.text_layout_details(cx);
14655 let style = &text_layout_details.editor_style;
14656 let font_id = cx.text_system().resolve_font(&style.text.font());
14657 let font_size = style.text.font_size.to_pixels(cx.rem_size());
14658 let line_height = style.text.line_height_in_pixels(cx.rem_size());
14659
14660 let em_width = cx
14661 .text_system()
14662 .typographic_bounds(font_id, font_size, 'm')
14663 .unwrap()
14664 .size
14665 .width;
14666
14667 let snapshot = self.snapshot(cx);
14668 let scroll_position = snapshot.scroll_position();
14669 let scroll_left = scroll_position.x * em_width;
14670
14671 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14672 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14673 + self.gutter_dimensions.width;
14674 let y = line_height * (start.row().as_f32() - scroll_position.y);
14675
14676 Some(Bounds {
14677 origin: element_bounds.origin + point(x, y),
14678 size: size(em_width, line_height),
14679 })
14680 }
14681}
14682
14683trait SelectionExt {
14684 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14685 fn spanned_rows(
14686 &self,
14687 include_end_if_at_line_start: bool,
14688 map: &DisplaySnapshot,
14689 ) -> Range<MultiBufferRow>;
14690}
14691
14692impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14693 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14694 let start = self
14695 .start
14696 .to_point(&map.buffer_snapshot)
14697 .to_display_point(map);
14698 let end = self
14699 .end
14700 .to_point(&map.buffer_snapshot)
14701 .to_display_point(map);
14702 if self.reversed {
14703 end..start
14704 } else {
14705 start..end
14706 }
14707 }
14708
14709 fn spanned_rows(
14710 &self,
14711 include_end_if_at_line_start: bool,
14712 map: &DisplaySnapshot,
14713 ) -> Range<MultiBufferRow> {
14714 let start = self.start.to_point(&map.buffer_snapshot);
14715 let mut end = self.end.to_point(&map.buffer_snapshot);
14716 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14717 end.row -= 1;
14718 }
14719
14720 let buffer_start = map.prev_line_boundary(start).0;
14721 let buffer_end = map.next_line_boundary(end).0;
14722 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14723 }
14724}
14725
14726impl<T: InvalidationRegion> InvalidationStack<T> {
14727 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14728 where
14729 S: Clone + ToOffset,
14730 {
14731 while let Some(region) = self.last() {
14732 let all_selections_inside_invalidation_ranges =
14733 if selections.len() == region.ranges().len() {
14734 selections
14735 .iter()
14736 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14737 .all(|(selection, invalidation_range)| {
14738 let head = selection.head().to_offset(buffer);
14739 invalidation_range.start <= head && invalidation_range.end >= head
14740 })
14741 } else {
14742 false
14743 };
14744
14745 if all_selections_inside_invalidation_ranges {
14746 break;
14747 } else {
14748 self.pop();
14749 }
14750 }
14751 }
14752}
14753
14754impl<T> Default for InvalidationStack<T> {
14755 fn default() -> Self {
14756 Self(Default::default())
14757 }
14758}
14759
14760impl<T> Deref for InvalidationStack<T> {
14761 type Target = Vec<T>;
14762
14763 fn deref(&self) -> &Self::Target {
14764 &self.0
14765 }
14766}
14767
14768impl<T> DerefMut for InvalidationStack<T> {
14769 fn deref_mut(&mut self) -> &mut Self::Target {
14770 &mut self.0
14771 }
14772}
14773
14774impl InvalidationRegion for SnippetState {
14775 fn ranges(&self) -> &[Range<Anchor>] {
14776 &self.ranges[self.active_index]
14777 }
14778}
14779
14780pub fn diagnostic_block_renderer(
14781 diagnostic: Diagnostic,
14782 max_message_rows: Option<u8>,
14783 allow_closing: bool,
14784 _is_valid: bool,
14785) -> RenderBlock {
14786 let (text_without_backticks, code_ranges) =
14787 highlight_diagnostic_message(&diagnostic, max_message_rows);
14788
14789 Arc::new(move |cx: &mut BlockContext| {
14790 let group_id: SharedString = cx.block_id.to_string().into();
14791
14792 let mut text_style = cx.text_style().clone();
14793 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14794 let theme_settings = ThemeSettings::get_global(cx);
14795 text_style.font_family = theme_settings.buffer_font.family.clone();
14796 text_style.font_style = theme_settings.buffer_font.style;
14797 text_style.font_features = theme_settings.buffer_font.features.clone();
14798 text_style.font_weight = theme_settings.buffer_font.weight;
14799
14800 let multi_line_diagnostic = diagnostic.message.contains('\n');
14801
14802 let buttons = |diagnostic: &Diagnostic| {
14803 if multi_line_diagnostic {
14804 v_flex()
14805 } else {
14806 h_flex()
14807 }
14808 .when(allow_closing, |div| {
14809 div.children(diagnostic.is_primary.then(|| {
14810 IconButton::new("close-block", IconName::XCircle)
14811 .icon_color(Color::Muted)
14812 .size(ButtonSize::Compact)
14813 .style(ButtonStyle::Transparent)
14814 .visible_on_hover(group_id.clone())
14815 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14816 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14817 }))
14818 })
14819 .child(
14820 IconButton::new("copy-block", IconName::Copy)
14821 .icon_color(Color::Muted)
14822 .size(ButtonSize::Compact)
14823 .style(ButtonStyle::Transparent)
14824 .visible_on_hover(group_id.clone())
14825 .on_click({
14826 let message = diagnostic.message.clone();
14827 move |_click, cx| {
14828 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14829 }
14830 })
14831 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14832 )
14833 };
14834
14835 let icon_size = buttons(&diagnostic)
14836 .into_any_element()
14837 .layout_as_root(AvailableSpace::min_size(), cx);
14838
14839 h_flex()
14840 .id(cx.block_id)
14841 .group(group_id.clone())
14842 .relative()
14843 .size_full()
14844 .block_mouse_down()
14845 .pl(cx.gutter_dimensions.width)
14846 .w(cx.max_width - cx.gutter_dimensions.full_width())
14847 .child(
14848 div()
14849 .flex()
14850 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14851 .flex_shrink(),
14852 )
14853 .child(buttons(&diagnostic))
14854 .child(div().flex().flex_shrink_0().child(
14855 StyledText::new(text_without_backticks.clone()).with_highlights(
14856 &text_style,
14857 code_ranges.iter().map(|range| {
14858 (
14859 range.clone(),
14860 HighlightStyle {
14861 font_weight: Some(FontWeight::BOLD),
14862 ..Default::default()
14863 },
14864 )
14865 }),
14866 ),
14867 ))
14868 .into_any_element()
14869 })
14870}
14871
14872pub fn highlight_diagnostic_message(
14873 diagnostic: &Diagnostic,
14874 mut max_message_rows: Option<u8>,
14875) -> (SharedString, Vec<Range<usize>>) {
14876 let mut text_without_backticks = String::new();
14877 let mut code_ranges = Vec::new();
14878
14879 if let Some(source) = &diagnostic.source {
14880 text_without_backticks.push_str(source);
14881 code_ranges.push(0..source.len());
14882 text_without_backticks.push_str(": ");
14883 }
14884
14885 let mut prev_offset = 0;
14886 let mut in_code_block = false;
14887 let has_row_limit = max_message_rows.is_some();
14888 let mut newline_indices = diagnostic
14889 .message
14890 .match_indices('\n')
14891 .filter(|_| has_row_limit)
14892 .map(|(ix, _)| ix)
14893 .fuse()
14894 .peekable();
14895
14896 for (quote_ix, _) in diagnostic
14897 .message
14898 .match_indices('`')
14899 .chain([(diagnostic.message.len(), "")])
14900 {
14901 let mut first_newline_ix = None;
14902 let mut last_newline_ix = None;
14903 while let Some(newline_ix) = newline_indices.peek() {
14904 if *newline_ix < quote_ix {
14905 if first_newline_ix.is_none() {
14906 first_newline_ix = Some(*newline_ix);
14907 }
14908 last_newline_ix = Some(*newline_ix);
14909
14910 if let Some(rows_left) = &mut max_message_rows {
14911 if *rows_left == 0 {
14912 break;
14913 } else {
14914 *rows_left -= 1;
14915 }
14916 }
14917 let _ = newline_indices.next();
14918 } else {
14919 break;
14920 }
14921 }
14922 let prev_len = text_without_backticks.len();
14923 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14924 text_without_backticks.push_str(new_text);
14925 if in_code_block {
14926 code_ranges.push(prev_len..text_without_backticks.len());
14927 }
14928 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14929 in_code_block = !in_code_block;
14930 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14931 text_without_backticks.push_str("...");
14932 break;
14933 }
14934 }
14935
14936 (text_without_backticks.into(), code_ranges)
14937}
14938
14939fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14940 match severity {
14941 DiagnosticSeverity::ERROR => colors.error,
14942 DiagnosticSeverity::WARNING => colors.warning,
14943 DiagnosticSeverity::INFORMATION => colors.info,
14944 DiagnosticSeverity::HINT => colors.info,
14945 _ => colors.ignored,
14946 }
14947}
14948
14949pub fn styled_runs_for_code_label<'a>(
14950 label: &'a CodeLabel,
14951 syntax_theme: &'a theme::SyntaxTheme,
14952) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14953 let fade_out = HighlightStyle {
14954 fade_out: Some(0.35),
14955 ..Default::default()
14956 };
14957
14958 let mut prev_end = label.filter_range.end;
14959 label
14960 .runs
14961 .iter()
14962 .enumerate()
14963 .flat_map(move |(ix, (range, highlight_id))| {
14964 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14965 style
14966 } else {
14967 return Default::default();
14968 };
14969 let mut muted_style = style;
14970 muted_style.highlight(fade_out);
14971
14972 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14973 if range.start >= label.filter_range.end {
14974 if range.start > prev_end {
14975 runs.push((prev_end..range.start, fade_out));
14976 }
14977 runs.push((range.clone(), muted_style));
14978 } else if range.end <= label.filter_range.end {
14979 runs.push((range.clone(), style));
14980 } else {
14981 runs.push((range.start..label.filter_range.end, style));
14982 runs.push((label.filter_range.end..range.end, muted_style));
14983 }
14984 prev_end = cmp::max(prev_end, range.end);
14985
14986 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14987 runs.push((prev_end..label.text.len(), fade_out));
14988 }
14989
14990 runs
14991 })
14992}
14993
14994pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14995 let mut prev_index = 0;
14996 let mut prev_codepoint: Option<char> = None;
14997 text.char_indices()
14998 .chain([(text.len(), '\0')])
14999 .filter_map(move |(index, codepoint)| {
15000 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15001 let is_boundary = index == text.len()
15002 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15003 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15004 if is_boundary {
15005 let chunk = &text[prev_index..index];
15006 prev_index = index;
15007 Some(chunk)
15008 } else {
15009 None
15010 }
15011 })
15012}
15013
15014pub trait RangeToAnchorExt: Sized {
15015 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15016
15017 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15018 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15019 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15020 }
15021}
15022
15023impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15024 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15025 let start_offset = self.start.to_offset(snapshot);
15026 let end_offset = self.end.to_offset(snapshot);
15027 if start_offset == end_offset {
15028 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15029 } else {
15030 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15031 }
15032 }
15033}
15034
15035pub trait RowExt {
15036 fn as_f32(&self) -> f32;
15037
15038 fn next_row(&self) -> Self;
15039
15040 fn previous_row(&self) -> Self;
15041
15042 fn minus(&self, other: Self) -> u32;
15043}
15044
15045impl RowExt for DisplayRow {
15046 fn as_f32(&self) -> f32 {
15047 self.0 as f32
15048 }
15049
15050 fn next_row(&self) -> Self {
15051 Self(self.0 + 1)
15052 }
15053
15054 fn previous_row(&self) -> Self {
15055 Self(self.0.saturating_sub(1))
15056 }
15057
15058 fn minus(&self, other: Self) -> u32 {
15059 self.0 - other.0
15060 }
15061}
15062
15063impl RowExt for MultiBufferRow {
15064 fn as_f32(&self) -> f32 {
15065 self.0 as f32
15066 }
15067
15068 fn next_row(&self) -> Self {
15069 Self(self.0 + 1)
15070 }
15071
15072 fn previous_row(&self) -> Self {
15073 Self(self.0.saturating_sub(1))
15074 }
15075
15076 fn minus(&self, other: Self) -> u32 {
15077 self.0 - other.0
15078 }
15079}
15080
15081trait RowRangeExt {
15082 type Row;
15083
15084 fn len(&self) -> usize;
15085
15086 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15087}
15088
15089impl RowRangeExt for Range<MultiBufferRow> {
15090 type Row = MultiBufferRow;
15091
15092 fn len(&self) -> usize {
15093 (self.end.0 - self.start.0) as usize
15094 }
15095
15096 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15097 (self.start.0..self.end.0).map(MultiBufferRow)
15098 }
15099}
15100
15101impl RowRangeExt for Range<DisplayRow> {
15102 type Row = DisplayRow;
15103
15104 fn len(&self) -> usize {
15105 (self.end.0 - self.start.0) as usize
15106 }
15107
15108 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15109 (self.start.0..self.end.0).map(DisplayRow)
15110 }
15111}
15112
15113fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15114 if hunk.diff_base_byte_range.is_empty() {
15115 DiffHunkStatus::Added
15116 } else if hunk.row_range.is_empty() {
15117 DiffHunkStatus::Removed
15118 } else {
15119 DiffHunkStatus::Modified
15120 }
15121}
15122
15123/// If select range has more than one line, we
15124/// just point the cursor to range.start.
15125fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15126 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15127 range
15128 } else {
15129 range.start..range.start
15130 }
15131}
15132
15133pub struct KillRing(ClipboardItem);
15134impl Global for KillRing {}
15135
15136const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);