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 code_context_menus;
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;
45#[cfg(test)]
46mod inline_completion_tests;
47mod signature_help;
48#[cfg(any(test, feature = "test-support"))]
49pub mod test;
50
51use ::git::diff::DiffHunkStatus;
52pub(crate) use actions::*;
53pub use actions::{OpenExcerpts, OpenExcerptsSplit};
54use aho_corasick::AhoCorasick;
55use anyhow::{anyhow, Context as _, Result};
56use blink_manager::BlinkManager;
57use client::{Collaborator, ParticipantIndex};
58use clock::ReplicaId;
59use collections::{BTreeMap, Bound, HashMap, HashSet, VecDeque};
60use convert_case::{Case, Casing};
61use display_map::*;
62pub use display_map::{DisplayPoint, FoldPlaceholder};
63pub use editor_settings::{
64 CurrentLineHighlight, EditorSettings, ScrollBeyondLastLine, SearchSettings, ShowScrollbar,
65};
66pub use editor_settings_controls::*;
67use element::LineWithInvisibles;
68pub use element::{
69 CursorLayout, EditorElement, HighlightedRange, HighlightedRangeLine, PointForPosition,
70};
71use futures::{future, FutureExt};
72use fuzzy::StringMatchCandidate;
73
74use code_context_menus::{
75 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
76 CompletionEntry, CompletionsMenu, ContextMenuOrigin,
77};
78use git::blame::GitBlame;
79use gpui::{
80 div, impl_actions, point, prelude::*, px, relative, size, Action, AnyElement, AppContext,
81 AsyncWindowContext, AvailableSpace, Bounds, ClipboardEntry, ClipboardItem, Context,
82 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView, FontId,
83 FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, ModelContext,
84 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText,
85 Subscription, Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle,
86 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
87 WeakView, WindowContext,
88};
89use highlight_matching_bracket::refresh_matching_bracket_highlights;
90use hover_popover::{hide_hover, HoverState};
91pub(crate) use hunk_diff::HoveredHunk;
92use hunk_diff::{diff_hunk_to_display, DiffMap, DiffMapSnapshot};
93use indent_guides::ActiveIndentGuidesState;
94use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
95pub use inline_completion::Direction;
96use inline_completion::{InlineCompletionProvider, InlineCompletionProviderHandle};
97pub use items::MAX_TAB_TITLE_LEN;
98use itertools::Itertools;
99use language::{
100 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
101 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
102 CursorShape, Diagnostic, DiagnosticEntry, Documentation, IndentKind, IndentSize, Language,
103 OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
104};
105use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
106use linked_editing_ranges::refresh_linked_ranges;
107use mouse_context_menu::MouseContextMenu;
108pub use proposed_changes_editor::{
109 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
110};
111use similar::{ChangeTag, TextDiff};
112use std::iter::Peekable;
113use task::{ResolvedTask, TaskTemplate, TaskVariables};
114
115use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
116pub use lsp::CompletionContext;
117use lsp::{
118 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
119 LanguageServerId, LanguageServerName,
120};
121
122use movement::TextLayoutDetails;
123pub use multi_buffer::{
124 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
125 ToPoint,
126};
127use multi_buffer::{
128 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
129};
130use project::{
131 buffer_store::BufferChangeSet,
132 lsp_store::{FormatTarget, FormatTrigger, OpenLspBufferHandle},
133 project_settings::{GitGutterSetting, ProjectSettings},
134 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
135 LspStore, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
136};
137use rand::prelude::*;
138use rpc::{proto::*, ErrorExt};
139use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
140use selections_collection::{
141 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
142};
143use serde::{Deserialize, Serialize};
144use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
145use smallvec::SmallVec;
146use snippet::Snippet;
147use std::{
148 any::TypeId,
149 borrow::Cow,
150 cell::RefCell,
151 cmp::{self, Ordering, Reverse},
152 mem,
153 num::NonZeroU32,
154 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
155 path::{Path, PathBuf},
156 rc::Rc,
157 sync::Arc,
158 time::{Duration, Instant},
159};
160pub use sum_tree::Bias;
161use sum_tree::TreeMap;
162use text::{BufferId, OffsetUtf16, Rope};
163use theme::{
164 observe_buffer_font_size_adjustment, ActiveTheme, PlayerColor, StatusColors, SyntaxTheme,
165 ThemeColors, ThemeSettings,
166};
167use ui::{
168 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
169 PopoverMenuHandle, Tooltip,
170};
171use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
172use workspace::item::{ItemHandle, PreviewTabsSettings};
173use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
174use workspace::{
175 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
176};
177use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
178
179use crate::hover_links::{find_url, find_url_from_range};
180use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
181
182pub const FILE_HEADER_HEIGHT: u32 = 2;
183pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
184pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
185pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
186const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
187const MAX_LINE_LEN: usize = 1024;
188const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
189const MAX_SELECTION_HISTORY_LEN: usize = 1024;
190pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
191#[doc(hidden)]
192pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
193
194pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
195pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
196
197pub fn render_parsed_markdown(
198 element_id: impl Into<ElementId>,
199 parsed: &language::ParsedMarkdown,
200 editor_style: &EditorStyle,
201 workspace: Option<WeakView<Workspace>>,
202 cx: &mut WindowContext,
203) -> InteractiveText {
204 let code_span_background_color = cx
205 .theme()
206 .colors()
207 .editor_document_highlight_read_background;
208
209 let highlights = gpui::combine_highlights(
210 parsed.highlights.iter().filter_map(|(range, highlight)| {
211 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
212 Some((range.clone(), highlight))
213 }),
214 parsed
215 .regions
216 .iter()
217 .zip(&parsed.region_ranges)
218 .filter_map(|(region, range)| {
219 if region.code {
220 Some((
221 range.clone(),
222 HighlightStyle {
223 background_color: Some(code_span_background_color),
224 ..Default::default()
225 },
226 ))
227 } else {
228 None
229 }
230 }),
231 );
232
233 let mut links = Vec::new();
234 let mut link_ranges = Vec::new();
235 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
236 if let Some(link) = region.link.clone() {
237 links.push(link);
238 link_ranges.push(range.clone());
239 }
240 }
241
242 InteractiveText::new(
243 element_id,
244 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
245 )
246 .on_click(link_ranges, move |clicked_range_ix, cx| {
247 match &links[clicked_range_ix] {
248 markdown::Link::Web { url } => cx.open_url(url),
249 markdown::Link::Path { path } => {
250 if let Some(workspace) = &workspace {
251 _ = workspace.update(cx, |workspace, cx| {
252 workspace.open_abs_path(path.clone(), false, cx).detach();
253 });
254 }
255 }
256 }
257 })
258}
259
260#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
261pub(crate) enum InlayId {
262 InlineCompletion(usize),
263 Hint(usize),
264}
265
266impl InlayId {
267 fn id(&self) -> usize {
268 match self {
269 Self::InlineCompletion(id) => *id,
270 Self::Hint(id) => *id,
271 }
272 }
273}
274
275enum DiffRowHighlight {}
276enum DocumentHighlightRead {}
277enum DocumentHighlightWrite {}
278enum InputComposition {}
279
280#[derive(Debug, Copy, Clone, PartialEq, Eq)]
281pub enum Navigated {
282 Yes,
283 No,
284}
285
286impl Navigated {
287 pub fn from_bool(yes: bool) -> Navigated {
288 if yes {
289 Navigated::Yes
290 } else {
291 Navigated::No
292 }
293 }
294}
295
296pub fn init_settings(cx: &mut AppContext) {
297 EditorSettings::register(cx);
298}
299
300pub fn init(cx: &mut AppContext) {
301 init_settings(cx);
302
303 workspace::register_project_item::<Editor>(cx);
304 workspace::FollowableViewRegistry::register::<Editor>(cx);
305 workspace::register_serializable_item::<Editor>(cx);
306
307 cx.observe_new_views(
308 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
309 workspace.register_action(Editor::new_file);
310 workspace.register_action(Editor::new_file_vertical);
311 workspace.register_action(Editor::new_file_horizontal);
312 },
313 )
314 .detach();
315
316 cx.on_action(move |_: &workspace::NewFile, cx| {
317 let app_state = workspace::AppState::global(cx);
318 if let Some(app_state) = app_state.upgrade() {
319 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
320 Editor::new_file(workspace, &Default::default(), cx)
321 })
322 .detach();
323 }
324 });
325 cx.on_action(move |_: &workspace::NewWindow, cx| {
326 let app_state = workspace::AppState::global(cx);
327 if let Some(app_state) = app_state.upgrade() {
328 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
329 Editor::new_file(workspace, &Default::default(), cx)
330 })
331 .detach();
332 }
333 });
334 git::project_diff::init(cx);
335}
336
337pub struct SearchWithinRange;
338
339trait InvalidationRegion {
340 fn ranges(&self) -> &[Range<Anchor>];
341}
342
343#[derive(Clone, Debug, PartialEq)]
344pub enum SelectPhase {
345 Begin {
346 position: DisplayPoint,
347 add: bool,
348 click_count: usize,
349 },
350 BeginColumnar {
351 position: DisplayPoint,
352 reset: bool,
353 goal_column: u32,
354 },
355 Extend {
356 position: DisplayPoint,
357 click_count: usize,
358 },
359 Update {
360 position: DisplayPoint,
361 goal_column: u32,
362 scroll_delta: gpui::Point<f32>,
363 },
364 End,
365}
366
367#[derive(Clone, Debug)]
368pub enum SelectMode {
369 Character,
370 Word(Range<Anchor>),
371 Line(Range<Anchor>),
372 All,
373}
374
375#[derive(Copy, Clone, PartialEq, Eq, Debug)]
376pub enum EditorMode {
377 SingleLine { auto_width: bool },
378 AutoHeight { max_lines: usize },
379 Full,
380}
381
382#[derive(Copy, Clone, Debug)]
383pub enum SoftWrap {
384 /// Prefer not to wrap at all.
385 ///
386 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
387 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
388 GitDiff,
389 /// Prefer a single line generally, unless an overly long line is encountered.
390 None,
391 /// Soft wrap lines that exceed the editor width.
392 EditorWidth,
393 /// Soft wrap lines at the preferred line length.
394 Column(u32),
395 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
396 Bounded(u32),
397}
398
399#[derive(Clone)]
400pub struct EditorStyle {
401 pub background: Hsla,
402 pub local_player: PlayerColor,
403 pub text: TextStyle,
404 pub scrollbar_width: Pixels,
405 pub syntax: Arc<SyntaxTheme>,
406 pub status: StatusColors,
407 pub inlay_hints_style: HighlightStyle,
408 pub inline_completion_styles: InlineCompletionStyles,
409 pub unnecessary_code_fade: f32,
410}
411
412impl Default for EditorStyle {
413 fn default() -> Self {
414 Self {
415 background: Hsla::default(),
416 local_player: PlayerColor::default(),
417 text: TextStyle::default(),
418 scrollbar_width: Pixels::default(),
419 syntax: Default::default(),
420 // HACK: Status colors don't have a real default.
421 // We should look into removing the status colors from the editor
422 // style and retrieve them directly from the theme.
423 status: StatusColors::dark(),
424 inlay_hints_style: HighlightStyle::default(),
425 inline_completion_styles: InlineCompletionStyles {
426 insertion: HighlightStyle::default(),
427 whitespace: HighlightStyle::default(),
428 },
429 unnecessary_code_fade: Default::default(),
430 }
431 }
432}
433
434pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
435 let show_background = language_settings::language_settings(None, None, cx)
436 .inlay_hints
437 .show_background;
438
439 HighlightStyle {
440 color: Some(cx.theme().status().hint),
441 background_color: show_background.then(|| cx.theme().status().hint_background),
442 ..HighlightStyle::default()
443 }
444}
445
446pub fn make_suggestion_styles(cx: &WindowContext) -> InlineCompletionStyles {
447 InlineCompletionStyles {
448 insertion: HighlightStyle {
449 color: Some(cx.theme().status().predictive),
450 ..HighlightStyle::default()
451 },
452 whitespace: HighlightStyle {
453 background_color: Some(cx.theme().status().created_background),
454 ..HighlightStyle::default()
455 },
456 }
457}
458
459type CompletionId = usize;
460
461#[derive(Debug, Clone)]
462struct InlineCompletionMenuHint {
463 provider_name: &'static str,
464 text: InlineCompletionText,
465}
466
467#[derive(Clone, Debug)]
468enum InlineCompletionText {
469 Move(SharedString),
470 Edit {
471 text: SharedString,
472 highlights: Vec<(Range<usize>, HighlightStyle)>,
473 },
474}
475
476enum InlineCompletion {
477 Edit(Vec<(Range<Anchor>, String)>),
478 Move(Anchor),
479}
480
481struct InlineCompletionState {
482 inlay_ids: Vec<InlayId>,
483 completion: InlineCompletion,
484 invalidation_range: Range<Anchor>,
485}
486
487enum InlineCompletionHighlight {}
488
489#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
490struct EditorActionId(usize);
491
492impl EditorActionId {
493 pub fn post_inc(&mut self) -> Self {
494 let answer = self.0;
495
496 *self = Self(answer + 1);
497
498 Self(answer)
499 }
500}
501
502// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
503// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
504
505type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
506type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
507
508#[derive(Default)]
509struct ScrollbarMarkerState {
510 scrollbar_size: Size<Pixels>,
511 dirty: bool,
512 markers: Arc<[PaintQuad]>,
513 pending_refresh: Option<Task<Result<()>>>,
514}
515
516impl ScrollbarMarkerState {
517 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
518 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
519 }
520}
521
522#[derive(Clone, Debug)]
523struct RunnableTasks {
524 templates: Vec<(TaskSourceKind, TaskTemplate)>,
525 offset: MultiBufferOffset,
526 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
527 column: u32,
528 // Values of all named captures, including those starting with '_'
529 extra_variables: HashMap<String, String>,
530 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
531 context_range: Range<BufferOffset>,
532}
533
534impl RunnableTasks {
535 fn resolve<'a>(
536 &'a self,
537 cx: &'a task::TaskContext,
538 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
539 self.templates.iter().filter_map(|(kind, template)| {
540 template
541 .resolve_task(&kind.to_id_base(), cx)
542 .map(|task| (kind.clone(), task))
543 })
544 }
545}
546
547#[derive(Clone)]
548struct ResolvedTasks {
549 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
550 position: Anchor,
551}
552#[derive(Copy, Clone, Debug)]
553struct MultiBufferOffset(usize);
554#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
555struct BufferOffset(usize);
556
557// Addons allow storing per-editor state in other crates (e.g. Vim)
558pub trait Addon: 'static {
559 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
560
561 fn to_any(&self) -> &dyn std::any::Any;
562}
563
564#[derive(Debug, Copy, Clone, PartialEq, Eq)]
565pub enum IsVimMode {
566 Yes,
567 No,
568}
569
570/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
571///
572/// See the [module level documentation](self) for more information.
573pub struct Editor {
574 focus_handle: FocusHandle,
575 last_focused_descendant: Option<WeakFocusHandle>,
576 /// The text buffer being edited
577 buffer: Model<MultiBuffer>,
578 /// Map of how text in the buffer should be displayed.
579 /// Handles soft wraps, folds, fake inlay text insertions, etc.
580 pub display_map: Model<DisplayMap>,
581 pub selections: SelectionsCollection,
582 pub scroll_manager: ScrollManager,
583 /// When inline assist editors are linked, they all render cursors because
584 /// typing enters text into each of them, even the ones that aren't focused.
585 pub(crate) show_cursor_when_unfocused: bool,
586 columnar_selection_tail: Option<Anchor>,
587 add_selections_state: Option<AddSelectionsState>,
588 select_next_state: Option<SelectNextState>,
589 select_prev_state: Option<SelectNextState>,
590 selection_history: SelectionHistory,
591 autoclose_regions: Vec<AutocloseRegion>,
592 snippet_stack: InvalidationStack<SnippetState>,
593 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
594 ime_transaction: Option<TransactionId>,
595 active_diagnostics: Option<ActiveDiagnosticGroup>,
596 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
597
598 project: Option<Model<Project>>,
599 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
600 completion_provider: Option<Box<dyn CompletionProvider>>,
601 collaboration_hub: Option<Box<dyn CollaborationHub>>,
602 blink_manager: Model<BlinkManager>,
603 show_cursor_names: bool,
604 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
605 pub show_local_selections: bool,
606 mode: EditorMode,
607 show_breadcrumbs: bool,
608 show_gutter: bool,
609 show_scrollbars: bool,
610 show_line_numbers: Option<bool>,
611 use_relative_line_numbers: Option<bool>,
612 show_git_diff_gutter: Option<bool>,
613 show_code_actions: Option<bool>,
614 show_runnables: Option<bool>,
615 show_wrap_guides: Option<bool>,
616 show_indent_guides: Option<bool>,
617 placeholder_text: Option<Arc<str>>,
618 highlight_order: usize,
619 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
620 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
621 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
622 scrollbar_marker_state: ScrollbarMarkerState,
623 active_indent_guides_state: ActiveIndentGuidesState,
624 nav_history: Option<ItemNavHistory>,
625 context_menu: RefCell<Option<CodeContextMenu>>,
626 mouse_context_menu: Option<MouseContextMenu>,
627 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
628 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
629 signature_help_state: SignatureHelpState,
630 auto_signature_help: Option<bool>,
631 find_all_references_task_sources: Vec<Anchor>,
632 next_completion_id: CompletionId,
633 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
634 code_actions_task: Option<Task<Result<()>>>,
635 document_highlights_task: Option<Task<()>>,
636 linked_editing_range_task: Option<Task<Option<()>>>,
637 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
638 pending_rename: Option<RenameState>,
639 searchable: bool,
640 cursor_shape: CursorShape,
641 current_line_highlight: Option<CurrentLineHighlight>,
642 collapse_matches: bool,
643 autoindent_mode: Option<AutoindentMode>,
644 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
645 input_enabled: bool,
646 use_modal_editing: bool,
647 read_only: bool,
648 leader_peer_id: Option<PeerId>,
649 remote_id: Option<ViewId>,
650 hover_state: HoverState,
651 gutter_hovered: bool,
652 hovered_link_state: Option<HoveredLinkState>,
653 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
654 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
655 active_inline_completion: Option<InlineCompletionState>,
656 // enable_inline_completions is a switch that Vim can use to disable
657 // inline completions based on its mode.
658 enable_inline_completions: bool,
659 show_inline_completions_override: Option<bool>,
660 inlay_hint_cache: InlayHintCache,
661 diff_map: DiffMap,
662 next_inlay_id: usize,
663 _subscriptions: Vec<Subscription>,
664 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
665 gutter_dimensions: GutterDimensions,
666 style: Option<EditorStyle>,
667 text_style_refinement: Option<TextStyleRefinement>,
668 next_editor_action_id: EditorActionId,
669 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
670 use_autoclose: bool,
671 use_auto_surround: bool,
672 auto_replace_emoji_shortcode: bool,
673 show_git_blame_gutter: bool,
674 show_git_blame_inline: bool,
675 show_git_blame_inline_delay_task: Option<Task<()>>,
676 git_blame_inline_enabled: bool,
677 serialize_dirty_buffers: bool,
678 show_selection_menu: Option<bool>,
679 blame: Option<Model<GitBlame>>,
680 blame_subscription: Option<Subscription>,
681 custom_context_menu: Option<
682 Box<
683 dyn 'static
684 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
685 >,
686 >,
687 last_bounds: Option<Bounds<Pixels>>,
688 expect_bounds_change: Option<Bounds<Pixels>>,
689 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
690 tasks_update_task: Option<Task<()>>,
691 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
692 breadcrumb_header: Option<String>,
693 focused_block: Option<FocusedBlock>,
694 next_scroll_position: NextScrollCursorCenterTopBottom,
695 addons: HashMap<TypeId, Box<dyn Addon>>,
696 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
697 toggle_fold_multiple_buffers: Task<()>,
698 _scroll_cursor_center_top_bottom_task: Task<()>,
699}
700
701#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
702enum NextScrollCursorCenterTopBottom {
703 #[default]
704 Center,
705 Top,
706 Bottom,
707}
708
709impl NextScrollCursorCenterTopBottom {
710 fn next(&self) -> Self {
711 match self {
712 Self::Center => Self::Top,
713 Self::Top => Self::Bottom,
714 Self::Bottom => Self::Center,
715 }
716 }
717}
718
719#[derive(Clone)]
720pub struct EditorSnapshot {
721 pub mode: EditorMode,
722 show_gutter: bool,
723 show_line_numbers: Option<bool>,
724 show_git_diff_gutter: Option<bool>,
725 show_code_actions: Option<bool>,
726 show_runnables: Option<bool>,
727 git_blame_gutter_max_author_length: Option<usize>,
728 pub display_snapshot: DisplaySnapshot,
729 pub placeholder_text: Option<Arc<str>>,
730 diff_map: DiffMapSnapshot,
731 is_focused: bool,
732 scroll_anchor: ScrollAnchor,
733 ongoing_scroll: OngoingScroll,
734 current_line_highlight: CurrentLineHighlight,
735 gutter_hovered: bool,
736}
737
738const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
739
740#[derive(Default, Debug, Clone, Copy)]
741pub struct GutterDimensions {
742 pub left_padding: Pixels,
743 pub right_padding: Pixels,
744 pub width: Pixels,
745 pub margin: Pixels,
746 pub git_blame_entries_width: Option<Pixels>,
747}
748
749impl GutterDimensions {
750 /// The full width of the space taken up by the gutter.
751 pub fn full_width(&self) -> Pixels {
752 self.margin + self.width
753 }
754
755 /// The width of the space reserved for the fold indicators,
756 /// use alongside 'justify_end' and `gutter_width` to
757 /// right align content with the line numbers
758 pub fn fold_area_width(&self) -> Pixels {
759 self.margin + self.right_padding
760 }
761}
762
763#[derive(Debug)]
764pub struct RemoteSelection {
765 pub replica_id: ReplicaId,
766 pub selection: Selection<Anchor>,
767 pub cursor_shape: CursorShape,
768 pub peer_id: PeerId,
769 pub line_mode: bool,
770 pub participant_index: Option<ParticipantIndex>,
771 pub user_name: Option<SharedString>,
772}
773
774#[derive(Clone, Debug)]
775struct SelectionHistoryEntry {
776 selections: Arc<[Selection<Anchor>]>,
777 select_next_state: Option<SelectNextState>,
778 select_prev_state: Option<SelectNextState>,
779 add_selections_state: Option<AddSelectionsState>,
780}
781
782enum SelectionHistoryMode {
783 Normal,
784 Undoing,
785 Redoing,
786}
787
788#[derive(Clone, PartialEq, Eq, Hash)]
789struct HoveredCursor {
790 replica_id: u16,
791 selection_id: usize,
792}
793
794impl Default for SelectionHistoryMode {
795 fn default() -> Self {
796 Self::Normal
797 }
798}
799
800#[derive(Default)]
801struct SelectionHistory {
802 #[allow(clippy::type_complexity)]
803 selections_by_transaction:
804 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
805 mode: SelectionHistoryMode,
806 undo_stack: VecDeque<SelectionHistoryEntry>,
807 redo_stack: VecDeque<SelectionHistoryEntry>,
808}
809
810impl SelectionHistory {
811 fn insert_transaction(
812 &mut self,
813 transaction_id: TransactionId,
814 selections: Arc<[Selection<Anchor>]>,
815 ) {
816 self.selections_by_transaction
817 .insert(transaction_id, (selections, None));
818 }
819
820 #[allow(clippy::type_complexity)]
821 fn transaction(
822 &self,
823 transaction_id: TransactionId,
824 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
825 self.selections_by_transaction.get(&transaction_id)
826 }
827
828 #[allow(clippy::type_complexity)]
829 fn transaction_mut(
830 &mut self,
831 transaction_id: TransactionId,
832 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
833 self.selections_by_transaction.get_mut(&transaction_id)
834 }
835
836 fn push(&mut self, entry: SelectionHistoryEntry) {
837 if !entry.selections.is_empty() {
838 match self.mode {
839 SelectionHistoryMode::Normal => {
840 self.push_undo(entry);
841 self.redo_stack.clear();
842 }
843 SelectionHistoryMode::Undoing => self.push_redo(entry),
844 SelectionHistoryMode::Redoing => self.push_undo(entry),
845 }
846 }
847 }
848
849 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
850 if self
851 .undo_stack
852 .back()
853 .map_or(true, |e| e.selections != entry.selections)
854 {
855 self.undo_stack.push_back(entry);
856 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
857 self.undo_stack.pop_front();
858 }
859 }
860 }
861
862 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
863 if self
864 .redo_stack
865 .back()
866 .map_or(true, |e| e.selections != entry.selections)
867 {
868 self.redo_stack.push_back(entry);
869 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
870 self.redo_stack.pop_front();
871 }
872 }
873 }
874}
875
876struct RowHighlight {
877 index: usize,
878 range: Range<Anchor>,
879 color: Hsla,
880 should_autoscroll: bool,
881}
882
883#[derive(Clone, Debug)]
884struct AddSelectionsState {
885 above: bool,
886 stack: Vec<usize>,
887}
888
889#[derive(Clone)]
890struct SelectNextState {
891 query: AhoCorasick,
892 wordwise: bool,
893 done: bool,
894}
895
896impl std::fmt::Debug for SelectNextState {
897 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
898 f.debug_struct(std::any::type_name::<Self>())
899 .field("wordwise", &self.wordwise)
900 .field("done", &self.done)
901 .finish()
902 }
903}
904
905#[derive(Debug)]
906struct AutocloseRegion {
907 selection_id: usize,
908 range: Range<Anchor>,
909 pair: BracketPair,
910}
911
912#[derive(Debug)]
913struct SnippetState {
914 ranges: Vec<Vec<Range<Anchor>>>,
915 active_index: usize,
916 choices: Vec<Option<Vec<String>>>,
917}
918
919#[doc(hidden)]
920pub struct RenameState {
921 pub range: Range<Anchor>,
922 pub old_name: Arc<str>,
923 pub editor: View<Editor>,
924 block_id: CustomBlockId,
925}
926
927struct InvalidationStack<T>(Vec<T>);
928
929struct RegisteredInlineCompletionProvider {
930 provider: Arc<dyn InlineCompletionProviderHandle>,
931 _subscription: Subscription,
932}
933
934#[derive(Debug)]
935struct ActiveDiagnosticGroup {
936 primary_range: Range<Anchor>,
937 primary_message: String,
938 group_id: usize,
939 blocks: HashMap<CustomBlockId, Diagnostic>,
940 is_valid: bool,
941}
942
943#[derive(Serialize, Deserialize, Clone, Debug)]
944pub struct ClipboardSelection {
945 pub len: usize,
946 pub is_entire_line: bool,
947 pub first_line_indent: u32,
948}
949
950#[derive(Debug)]
951pub(crate) struct NavigationData {
952 cursor_anchor: Anchor,
953 cursor_position: Point,
954 scroll_anchor: ScrollAnchor,
955 scroll_top_row: u32,
956}
957
958#[derive(Debug, Clone, Copy, PartialEq, Eq)]
959pub enum GotoDefinitionKind {
960 Symbol,
961 Declaration,
962 Type,
963 Implementation,
964}
965
966#[derive(Debug, Clone)]
967enum InlayHintRefreshReason {
968 Toggle(bool),
969 SettingsChange(InlayHintSettings),
970 NewLinesShown,
971 BufferEdited(HashSet<Arc<Language>>),
972 RefreshRequested,
973 ExcerptsRemoved(Vec<ExcerptId>),
974}
975
976impl InlayHintRefreshReason {
977 fn description(&self) -> &'static str {
978 match self {
979 Self::Toggle(_) => "toggle",
980 Self::SettingsChange(_) => "settings change",
981 Self::NewLinesShown => "new lines shown",
982 Self::BufferEdited(_) => "buffer edited",
983 Self::RefreshRequested => "refresh requested",
984 Self::ExcerptsRemoved(_) => "excerpts removed",
985 }
986 }
987}
988
989pub(crate) struct FocusedBlock {
990 id: BlockId,
991 focus_handle: WeakFocusHandle,
992}
993
994#[derive(Clone)]
995enum JumpData {
996 MultiBufferRow {
997 row: MultiBufferRow,
998 line_offset_from_top: u32,
999 },
1000 MultiBufferPoint {
1001 excerpt_id: ExcerptId,
1002 position: Point,
1003 anchor: text::Anchor,
1004 line_offset_from_top: u32,
1005 },
1006}
1007
1008impl Editor {
1009 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1010 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1011 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1012 Self::new(
1013 EditorMode::SingleLine { auto_width: false },
1014 buffer,
1015 None,
1016 false,
1017 cx,
1018 )
1019 }
1020
1021 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1022 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1023 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1024 Self::new(EditorMode::Full, buffer, None, false, cx)
1025 }
1026
1027 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1028 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1029 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1030 Self::new(
1031 EditorMode::SingleLine { auto_width: true },
1032 buffer,
1033 None,
1034 false,
1035 cx,
1036 )
1037 }
1038
1039 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1040 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1041 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1042 Self::new(
1043 EditorMode::AutoHeight { max_lines },
1044 buffer,
1045 None,
1046 false,
1047 cx,
1048 )
1049 }
1050
1051 pub fn for_buffer(
1052 buffer: Model<Buffer>,
1053 project: Option<Model<Project>>,
1054 cx: &mut ViewContext<Self>,
1055 ) -> Self {
1056 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1057 Self::new(EditorMode::Full, buffer, project, false, cx)
1058 }
1059
1060 pub fn for_multibuffer(
1061 buffer: Model<MultiBuffer>,
1062 project: Option<Model<Project>>,
1063 show_excerpt_controls: bool,
1064 cx: &mut ViewContext<Self>,
1065 ) -> Self {
1066 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1067 }
1068
1069 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1070 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1071 let mut clone = Self::new(
1072 self.mode,
1073 self.buffer.clone(),
1074 self.project.clone(),
1075 show_excerpt_controls,
1076 cx,
1077 );
1078 self.display_map.update(cx, |display_map, cx| {
1079 let snapshot = display_map.snapshot(cx);
1080 clone.display_map.update(cx, |display_map, cx| {
1081 display_map.set_state(&snapshot, cx);
1082 });
1083 });
1084 clone.selections.clone_state(&self.selections);
1085 clone.scroll_manager.clone_state(&self.scroll_manager);
1086 clone.searchable = self.searchable;
1087 clone
1088 }
1089
1090 pub fn new(
1091 mode: EditorMode,
1092 buffer: Model<MultiBuffer>,
1093 project: Option<Model<Project>>,
1094 show_excerpt_controls: bool,
1095 cx: &mut ViewContext<Self>,
1096 ) -> Self {
1097 let style = cx.text_style();
1098 let font_size = style.font_size.to_pixels(cx.rem_size());
1099 let editor = cx.view().downgrade();
1100 let fold_placeholder = FoldPlaceholder {
1101 constrain_width: true,
1102 render: Arc::new(move |fold_id, fold_range, cx| {
1103 let editor = editor.clone();
1104 div()
1105 .id(fold_id)
1106 .bg(cx.theme().colors().ghost_element_background)
1107 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1108 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1109 .rounded_sm()
1110 .size_full()
1111 .cursor_pointer()
1112 .child("⋯")
1113 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1114 .on_click(move |_, cx| {
1115 editor
1116 .update(cx, |editor, cx| {
1117 editor.unfold_ranges(
1118 &[fold_range.start..fold_range.end],
1119 true,
1120 false,
1121 cx,
1122 );
1123 cx.stop_propagation();
1124 })
1125 .ok();
1126 })
1127 .into_any()
1128 }),
1129 merge_adjacent: true,
1130 ..Default::default()
1131 };
1132 let display_map = cx.new_model(|cx| {
1133 DisplayMap::new(
1134 buffer.clone(),
1135 style.font(),
1136 font_size,
1137 None,
1138 show_excerpt_controls,
1139 FILE_HEADER_HEIGHT,
1140 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1141 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1142 fold_placeholder,
1143 cx,
1144 )
1145 });
1146
1147 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1148
1149 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1150
1151 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1152 .then(|| language_settings::SoftWrap::None);
1153
1154 let mut project_subscriptions = Vec::new();
1155 if mode == EditorMode::Full {
1156 if let Some(project) = project.as_ref() {
1157 if buffer.read(cx).is_singleton() {
1158 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1159 cx.emit(EditorEvent::TitleChanged);
1160 }));
1161 }
1162 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1163 if let project::Event::RefreshInlayHints = event {
1164 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1165 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1166 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1167 let focus_handle = editor.focus_handle(cx);
1168 if focus_handle.is_focused(cx) {
1169 let snapshot = buffer.read(cx).snapshot();
1170 for (range, snippet) in snippet_edits {
1171 let editor_range =
1172 language::range_from_lsp(*range).to_offset(&snapshot);
1173 editor
1174 .insert_snippet(&[editor_range], snippet.clone(), cx)
1175 .ok();
1176 }
1177 }
1178 }
1179 }
1180 }));
1181 if let Some(task_inventory) = project
1182 .read(cx)
1183 .task_store()
1184 .read(cx)
1185 .task_inventory()
1186 .cloned()
1187 {
1188 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1189 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1190 }));
1191 }
1192 }
1193 }
1194
1195 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1196
1197 let inlay_hint_settings =
1198 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1199 let focus_handle = cx.focus_handle();
1200 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1201 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1202 .detach();
1203 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1204 .detach();
1205 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1206
1207 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1208 Some(false)
1209 } else {
1210 None
1211 };
1212
1213 let mut code_action_providers = Vec::new();
1214 if let Some(project) = project.clone() {
1215 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1216 code_action_providers.push(Rc::new(project) as Rc<_>);
1217 }
1218
1219 let mut this = Self {
1220 focus_handle,
1221 show_cursor_when_unfocused: false,
1222 last_focused_descendant: None,
1223 buffer: buffer.clone(),
1224 display_map: display_map.clone(),
1225 selections,
1226 scroll_manager: ScrollManager::new(cx),
1227 columnar_selection_tail: None,
1228 add_selections_state: None,
1229 select_next_state: None,
1230 select_prev_state: None,
1231 selection_history: Default::default(),
1232 autoclose_regions: Default::default(),
1233 snippet_stack: Default::default(),
1234 select_larger_syntax_node_stack: Vec::new(),
1235 ime_transaction: Default::default(),
1236 active_diagnostics: None,
1237 soft_wrap_mode_override,
1238 completion_provider: project.clone().map(|project| Box::new(project) as _),
1239 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1240 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1241 project,
1242 blink_manager: blink_manager.clone(),
1243 show_local_selections: true,
1244 show_scrollbars: true,
1245 mode,
1246 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1247 show_gutter: mode == EditorMode::Full,
1248 show_line_numbers: None,
1249 use_relative_line_numbers: None,
1250 show_git_diff_gutter: None,
1251 show_code_actions: None,
1252 show_runnables: None,
1253 show_wrap_guides: None,
1254 show_indent_guides,
1255 placeholder_text: None,
1256 highlight_order: 0,
1257 highlighted_rows: HashMap::default(),
1258 background_highlights: Default::default(),
1259 gutter_highlights: TreeMap::default(),
1260 scrollbar_marker_state: ScrollbarMarkerState::default(),
1261 active_indent_guides_state: ActiveIndentGuidesState::default(),
1262 nav_history: None,
1263 context_menu: RefCell::new(None),
1264 mouse_context_menu: None,
1265 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1266 completion_tasks: Default::default(),
1267 signature_help_state: SignatureHelpState::default(),
1268 auto_signature_help: None,
1269 find_all_references_task_sources: Vec::new(),
1270 next_completion_id: 0,
1271 next_inlay_id: 0,
1272 code_action_providers,
1273 available_code_actions: Default::default(),
1274 code_actions_task: Default::default(),
1275 document_highlights_task: Default::default(),
1276 linked_editing_range_task: Default::default(),
1277 pending_rename: Default::default(),
1278 searchable: true,
1279 cursor_shape: EditorSettings::get_global(cx)
1280 .cursor_shape
1281 .unwrap_or_default(),
1282 current_line_highlight: None,
1283 autoindent_mode: Some(AutoindentMode::EachLine),
1284 collapse_matches: false,
1285 workspace: None,
1286 input_enabled: true,
1287 use_modal_editing: mode == EditorMode::Full,
1288 read_only: false,
1289 use_autoclose: true,
1290 use_auto_surround: true,
1291 auto_replace_emoji_shortcode: false,
1292 leader_peer_id: None,
1293 remote_id: None,
1294 hover_state: Default::default(),
1295 hovered_link_state: Default::default(),
1296 inline_completion_provider: None,
1297 active_inline_completion: None,
1298 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1299 diff_map: DiffMap::default(),
1300 gutter_hovered: false,
1301 pixel_position_of_newest_cursor: None,
1302 last_bounds: None,
1303 expect_bounds_change: None,
1304 gutter_dimensions: GutterDimensions::default(),
1305 style: None,
1306 show_cursor_names: false,
1307 hovered_cursors: Default::default(),
1308 next_editor_action_id: EditorActionId::default(),
1309 editor_actions: Rc::default(),
1310 show_inline_completions_override: None,
1311 enable_inline_completions: true,
1312 custom_context_menu: None,
1313 show_git_blame_gutter: false,
1314 show_git_blame_inline: false,
1315 show_selection_menu: None,
1316 show_git_blame_inline_delay_task: None,
1317 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1318 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1319 .session
1320 .restore_unsaved_buffers,
1321 blame: None,
1322 blame_subscription: None,
1323 tasks: Default::default(),
1324 _subscriptions: vec![
1325 cx.observe(&buffer, Self::on_buffer_changed),
1326 cx.subscribe(&buffer, Self::on_buffer_event),
1327 cx.observe(&display_map, Self::on_display_map_changed),
1328 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1329 cx.observe_global::<SettingsStore>(Self::settings_changed),
1330 observe_buffer_font_size_adjustment(cx, |_, cx| cx.notify()),
1331 cx.observe_window_activation(|editor, cx| {
1332 let active = cx.is_window_active();
1333 editor.blink_manager.update(cx, |blink_manager, cx| {
1334 if active {
1335 blink_manager.enable(cx);
1336 } else {
1337 blink_manager.disable(cx);
1338 }
1339 });
1340 }),
1341 ],
1342 tasks_update_task: None,
1343 linked_edit_ranges: Default::default(),
1344 previous_search_ranges: None,
1345 breadcrumb_header: None,
1346 focused_block: None,
1347 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1348 addons: HashMap::default(),
1349 registered_buffers: HashMap::default(),
1350 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1351 toggle_fold_multiple_buffers: Task::ready(()),
1352 text_style_refinement: None,
1353 };
1354 this.tasks_update_task = Some(this.refresh_runnables(cx));
1355 this._subscriptions.extend(project_subscriptions);
1356
1357 this.end_selection(cx);
1358 this.scroll_manager.show_scrollbar(cx);
1359
1360 if mode == EditorMode::Full {
1361 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1362 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1363
1364 if this.git_blame_inline_enabled {
1365 this.git_blame_inline_enabled = true;
1366 this.start_git_blame_inline(false, cx);
1367 }
1368
1369 if let Some(buffer) = buffer.read(cx).as_singleton() {
1370 if let Some(project) = this.project.as_ref() {
1371 let lsp_store = project.read(cx).lsp_store();
1372 let handle = lsp_store.update(cx, |lsp_store, cx| {
1373 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1374 });
1375 this.registered_buffers
1376 .insert(buffer.read(cx).remote_id(), handle);
1377 }
1378 }
1379 }
1380
1381 this.report_editor_event("Editor Opened", None, cx);
1382 this
1383 }
1384
1385 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1386 self.mouse_context_menu
1387 .as_ref()
1388 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1389 }
1390
1391 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1392 let mut key_context = KeyContext::new_with_defaults();
1393 key_context.add("Editor");
1394 let mode = match self.mode {
1395 EditorMode::SingleLine { .. } => "single_line",
1396 EditorMode::AutoHeight { .. } => "auto_height",
1397 EditorMode::Full => "full",
1398 };
1399
1400 if EditorSettings::jupyter_enabled(cx) {
1401 key_context.add("jupyter");
1402 }
1403
1404 key_context.set("mode", mode);
1405 if self.pending_rename.is_some() {
1406 key_context.add("renaming");
1407 }
1408 match self.context_menu.borrow().as_ref() {
1409 Some(CodeContextMenu::Completions(_)) => {
1410 key_context.add("menu");
1411 key_context.add("showing_completions")
1412 }
1413 Some(CodeContextMenu::CodeActions(_)) => {
1414 key_context.add("menu");
1415 key_context.add("showing_code_actions")
1416 }
1417 None => {}
1418 }
1419
1420 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1421 if !self.focus_handle(cx).contains_focused(cx)
1422 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1423 {
1424 for addon in self.addons.values() {
1425 addon.extend_key_context(&mut key_context, cx)
1426 }
1427 }
1428
1429 if let Some(extension) = self
1430 .buffer
1431 .read(cx)
1432 .as_singleton()
1433 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1434 {
1435 key_context.set("extension", extension.to_string());
1436 }
1437
1438 if self.has_active_inline_completion() {
1439 key_context.add("copilot_suggestion");
1440 key_context.add("inline_completion");
1441 }
1442
1443 if !self
1444 .selections
1445 .disjoint
1446 .iter()
1447 .all(|selection| selection.start == selection.end)
1448 {
1449 key_context.add("selection");
1450 }
1451
1452 key_context
1453 }
1454
1455 pub fn new_file(
1456 workspace: &mut Workspace,
1457 _: &workspace::NewFile,
1458 cx: &mut ViewContext<Workspace>,
1459 ) {
1460 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1461 "Failed to create buffer",
1462 cx,
1463 |e, _| match e.error_code() {
1464 ErrorCode::RemoteUpgradeRequired => Some(format!(
1465 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1466 e.error_tag("required").unwrap_or("the latest version")
1467 )),
1468 _ => None,
1469 },
1470 );
1471 }
1472
1473 pub fn new_in_workspace(
1474 workspace: &mut Workspace,
1475 cx: &mut ViewContext<Workspace>,
1476 ) -> Task<Result<View<Editor>>> {
1477 let project = workspace.project().clone();
1478 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1479
1480 cx.spawn(|workspace, mut cx| async move {
1481 let buffer = create.await?;
1482 workspace.update(&mut cx, |workspace, cx| {
1483 let editor =
1484 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1485 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1486 editor
1487 })
1488 })
1489 }
1490
1491 fn new_file_vertical(
1492 workspace: &mut Workspace,
1493 _: &workspace::NewFileSplitVertical,
1494 cx: &mut ViewContext<Workspace>,
1495 ) {
1496 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1497 }
1498
1499 fn new_file_horizontal(
1500 workspace: &mut Workspace,
1501 _: &workspace::NewFileSplitHorizontal,
1502 cx: &mut ViewContext<Workspace>,
1503 ) {
1504 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1505 }
1506
1507 fn new_file_in_direction(
1508 workspace: &mut Workspace,
1509 direction: SplitDirection,
1510 cx: &mut ViewContext<Workspace>,
1511 ) {
1512 let project = workspace.project().clone();
1513 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1514
1515 cx.spawn(|workspace, mut cx| async move {
1516 let buffer = create.await?;
1517 workspace.update(&mut cx, move |workspace, cx| {
1518 workspace.split_item(
1519 direction,
1520 Box::new(
1521 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1522 ),
1523 cx,
1524 )
1525 })?;
1526 anyhow::Ok(())
1527 })
1528 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1529 ErrorCode::RemoteUpgradeRequired => Some(format!(
1530 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1531 e.error_tag("required").unwrap_or("the latest version")
1532 )),
1533 _ => None,
1534 });
1535 }
1536
1537 pub fn leader_peer_id(&self) -> Option<PeerId> {
1538 self.leader_peer_id
1539 }
1540
1541 pub fn buffer(&self) -> &Model<MultiBuffer> {
1542 &self.buffer
1543 }
1544
1545 pub fn workspace(&self) -> Option<View<Workspace>> {
1546 self.workspace.as_ref()?.0.upgrade()
1547 }
1548
1549 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1550 self.buffer().read(cx).title(cx)
1551 }
1552
1553 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1554 let git_blame_gutter_max_author_length = self
1555 .render_git_blame_gutter(cx)
1556 .then(|| {
1557 if let Some(blame) = self.blame.as_ref() {
1558 let max_author_length =
1559 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1560 Some(max_author_length)
1561 } else {
1562 None
1563 }
1564 })
1565 .flatten();
1566
1567 EditorSnapshot {
1568 mode: self.mode,
1569 show_gutter: self.show_gutter,
1570 show_line_numbers: self.show_line_numbers,
1571 show_git_diff_gutter: self.show_git_diff_gutter,
1572 show_code_actions: self.show_code_actions,
1573 show_runnables: self.show_runnables,
1574 git_blame_gutter_max_author_length,
1575 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1576 scroll_anchor: self.scroll_manager.anchor(),
1577 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1578 placeholder_text: self.placeholder_text.clone(),
1579 diff_map: self.diff_map.snapshot(),
1580 is_focused: self.focus_handle.is_focused(cx),
1581 current_line_highlight: self
1582 .current_line_highlight
1583 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1584 gutter_hovered: self.gutter_hovered,
1585 }
1586 }
1587
1588 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1589 self.buffer.read(cx).language_at(point, cx)
1590 }
1591
1592 pub fn file_at<T: ToOffset>(
1593 &self,
1594 point: T,
1595 cx: &AppContext,
1596 ) -> Option<Arc<dyn language::File>> {
1597 self.buffer.read(cx).read(cx).file_at(point).cloned()
1598 }
1599
1600 pub fn active_excerpt(
1601 &self,
1602 cx: &AppContext,
1603 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1604 self.buffer
1605 .read(cx)
1606 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1607 }
1608
1609 pub fn mode(&self) -> EditorMode {
1610 self.mode
1611 }
1612
1613 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1614 self.collaboration_hub.as_deref()
1615 }
1616
1617 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1618 self.collaboration_hub = Some(hub);
1619 }
1620
1621 pub fn set_custom_context_menu(
1622 &mut self,
1623 f: impl 'static
1624 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1625 ) {
1626 self.custom_context_menu = Some(Box::new(f))
1627 }
1628
1629 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1630 self.completion_provider = provider;
1631 }
1632
1633 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1634 self.semantics_provider.clone()
1635 }
1636
1637 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1638 self.semantics_provider = provider;
1639 }
1640
1641 pub fn set_inline_completion_provider<T>(
1642 &mut self,
1643 provider: Option<Model<T>>,
1644 cx: &mut ViewContext<Self>,
1645 ) where
1646 T: InlineCompletionProvider,
1647 {
1648 self.inline_completion_provider =
1649 provider.map(|provider| RegisteredInlineCompletionProvider {
1650 _subscription: cx.observe(&provider, |this, _, cx| {
1651 if this.focus_handle.is_focused(cx) {
1652 this.update_visible_inline_completion(cx);
1653 }
1654 }),
1655 provider: Arc::new(provider),
1656 });
1657 self.refresh_inline_completion(false, false, cx);
1658 }
1659
1660 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1661 self.placeholder_text.as_deref()
1662 }
1663
1664 pub fn set_placeholder_text(
1665 &mut self,
1666 placeholder_text: impl Into<Arc<str>>,
1667 cx: &mut ViewContext<Self>,
1668 ) {
1669 let placeholder_text = Some(placeholder_text.into());
1670 if self.placeholder_text != placeholder_text {
1671 self.placeholder_text = placeholder_text;
1672 cx.notify();
1673 }
1674 }
1675
1676 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1677 self.cursor_shape = cursor_shape;
1678
1679 // Disrupt blink for immediate user feedback that the cursor shape has changed
1680 self.blink_manager.update(cx, BlinkManager::show_cursor);
1681
1682 cx.notify();
1683 }
1684
1685 pub fn set_current_line_highlight(
1686 &mut self,
1687 current_line_highlight: Option<CurrentLineHighlight>,
1688 ) {
1689 self.current_line_highlight = current_line_highlight;
1690 }
1691
1692 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1693 self.collapse_matches = collapse_matches;
1694 }
1695
1696 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1697 let buffers = self.buffer.read(cx).all_buffers();
1698 let Some(lsp_store) = self.lsp_store(cx) else {
1699 return;
1700 };
1701 lsp_store.update(cx, |lsp_store, cx| {
1702 for buffer in buffers {
1703 self.registered_buffers
1704 .entry(buffer.read(cx).remote_id())
1705 .or_insert_with(|| {
1706 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1707 });
1708 }
1709 })
1710 }
1711
1712 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1713 if self.collapse_matches {
1714 return range.start..range.start;
1715 }
1716 range.clone()
1717 }
1718
1719 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1720 if self.display_map.read(cx).clip_at_line_ends != clip {
1721 self.display_map
1722 .update(cx, |map, _| map.clip_at_line_ends = clip);
1723 }
1724 }
1725
1726 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1727 self.input_enabled = input_enabled;
1728 }
1729
1730 pub fn set_inline_completions_enabled(&mut self, enabled: bool) {
1731 self.enable_inline_completions = enabled;
1732 }
1733
1734 pub fn set_autoindent(&mut self, autoindent: bool) {
1735 if autoindent {
1736 self.autoindent_mode = Some(AutoindentMode::EachLine);
1737 } else {
1738 self.autoindent_mode = None;
1739 }
1740 }
1741
1742 pub fn read_only(&self, cx: &AppContext) -> bool {
1743 self.read_only || self.buffer.read(cx).read_only()
1744 }
1745
1746 pub fn set_read_only(&mut self, read_only: bool) {
1747 self.read_only = read_only;
1748 }
1749
1750 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1751 self.use_autoclose = autoclose;
1752 }
1753
1754 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1755 self.use_auto_surround = auto_surround;
1756 }
1757
1758 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1759 self.auto_replace_emoji_shortcode = auto_replace;
1760 }
1761
1762 pub fn toggle_inline_completions(
1763 &mut self,
1764 _: &ToggleInlineCompletions,
1765 cx: &mut ViewContext<Self>,
1766 ) {
1767 if self.show_inline_completions_override.is_some() {
1768 self.set_show_inline_completions(None, cx);
1769 } else {
1770 let cursor = self.selections.newest_anchor().head();
1771 if let Some((buffer, cursor_buffer_position)) =
1772 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1773 {
1774 let show_inline_completions =
1775 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1776 self.set_show_inline_completions(Some(show_inline_completions), cx);
1777 }
1778 }
1779 }
1780
1781 pub fn set_show_inline_completions(
1782 &mut self,
1783 show_inline_completions: Option<bool>,
1784 cx: &mut ViewContext<Self>,
1785 ) {
1786 self.show_inline_completions_override = show_inline_completions;
1787 self.refresh_inline_completion(false, true, cx);
1788 }
1789
1790 fn should_show_inline_completions(
1791 &self,
1792 buffer: &Model<Buffer>,
1793 buffer_position: language::Anchor,
1794 cx: &AppContext,
1795 ) -> bool {
1796 if !self.snippet_stack.is_empty() {
1797 return false;
1798 }
1799
1800 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1801 return false;
1802 }
1803
1804 if let Some(provider) = self.inline_completion_provider() {
1805 if let Some(show_inline_completions) = self.show_inline_completions_override {
1806 show_inline_completions
1807 } else {
1808 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1809 }
1810 } else {
1811 false
1812 }
1813 }
1814
1815 fn inline_completions_disabled_in_scope(
1816 &self,
1817 buffer: &Model<Buffer>,
1818 buffer_position: language::Anchor,
1819 cx: &AppContext,
1820 ) -> bool {
1821 let snapshot = buffer.read(cx).snapshot();
1822 let settings = snapshot.settings_at(buffer_position, cx);
1823
1824 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1825 return false;
1826 };
1827
1828 scope.override_name().map_or(false, |scope_name| {
1829 settings
1830 .inline_completions_disabled_in
1831 .iter()
1832 .any(|s| s == scope_name)
1833 })
1834 }
1835
1836 pub fn set_use_modal_editing(&mut self, to: bool) {
1837 self.use_modal_editing = to;
1838 }
1839
1840 pub fn use_modal_editing(&self) -> bool {
1841 self.use_modal_editing
1842 }
1843
1844 fn selections_did_change(
1845 &mut self,
1846 local: bool,
1847 old_cursor_position: &Anchor,
1848 show_completions: bool,
1849 cx: &mut ViewContext<Self>,
1850 ) {
1851 cx.invalidate_character_coordinates();
1852
1853 // Copy selections to primary selection buffer
1854 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1855 if local {
1856 let selections = self.selections.all::<usize>(cx);
1857 let buffer_handle = self.buffer.read(cx).read(cx);
1858
1859 let mut text = String::new();
1860 for (index, selection) in selections.iter().enumerate() {
1861 let text_for_selection = buffer_handle
1862 .text_for_range(selection.start..selection.end)
1863 .collect::<String>();
1864
1865 text.push_str(&text_for_selection);
1866 if index != selections.len() - 1 {
1867 text.push('\n');
1868 }
1869 }
1870
1871 if !text.is_empty() {
1872 cx.write_to_primary(ClipboardItem::new_string(text));
1873 }
1874 }
1875
1876 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1877 self.buffer.update(cx, |buffer, cx| {
1878 buffer.set_active_selections(
1879 &self.selections.disjoint_anchors(),
1880 self.selections.line_mode,
1881 self.cursor_shape,
1882 cx,
1883 )
1884 });
1885 }
1886 let display_map = self
1887 .display_map
1888 .update(cx, |display_map, cx| display_map.snapshot(cx));
1889 let buffer = &display_map.buffer_snapshot;
1890 self.add_selections_state = None;
1891 self.select_next_state = None;
1892 self.select_prev_state = None;
1893 self.select_larger_syntax_node_stack.clear();
1894 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1895 self.snippet_stack
1896 .invalidate(&self.selections.disjoint_anchors(), buffer);
1897 self.take_rename(false, cx);
1898
1899 let new_cursor_position = self.selections.newest_anchor().head();
1900
1901 self.push_to_nav_history(
1902 *old_cursor_position,
1903 Some(new_cursor_position.to_point(buffer)),
1904 cx,
1905 );
1906
1907 if local {
1908 let new_cursor_position = self.selections.newest_anchor().head();
1909 let mut context_menu = self.context_menu.borrow_mut();
1910 let completion_menu = match context_menu.as_ref() {
1911 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1912 _ => {
1913 *context_menu = None;
1914 None
1915 }
1916 };
1917
1918 if let Some(completion_menu) = completion_menu {
1919 let cursor_position = new_cursor_position.to_offset(buffer);
1920 let (word_range, kind) =
1921 buffer.surrounding_word(completion_menu.initial_position, true);
1922 if kind == Some(CharKind::Word)
1923 && word_range.to_inclusive().contains(&cursor_position)
1924 {
1925 let mut completion_menu = completion_menu.clone();
1926 drop(context_menu);
1927
1928 let query = Self::completion_query(buffer, cursor_position);
1929 cx.spawn(move |this, mut cx| async move {
1930 completion_menu
1931 .filter(query.as_deref(), cx.background_executor().clone())
1932 .await;
1933
1934 this.update(&mut cx, |this, cx| {
1935 let mut context_menu = this.context_menu.borrow_mut();
1936 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1937 else {
1938 return;
1939 };
1940
1941 if menu.id > completion_menu.id {
1942 return;
1943 }
1944
1945 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1946 drop(context_menu);
1947 cx.notify();
1948 })
1949 })
1950 .detach();
1951
1952 if show_completions {
1953 self.show_completions(&ShowCompletions { trigger: None }, cx);
1954 }
1955 } else {
1956 drop(context_menu);
1957 self.hide_context_menu(cx);
1958 }
1959 } else {
1960 drop(context_menu);
1961 }
1962
1963 hide_hover(self, cx);
1964
1965 if old_cursor_position.to_display_point(&display_map).row()
1966 != new_cursor_position.to_display_point(&display_map).row()
1967 {
1968 self.available_code_actions.take();
1969 }
1970 self.refresh_code_actions(cx);
1971 self.refresh_document_highlights(cx);
1972 refresh_matching_bracket_highlights(self, cx);
1973 self.update_visible_inline_completion(cx);
1974 linked_editing_ranges::refresh_linked_ranges(self, cx);
1975 if self.git_blame_inline_enabled {
1976 self.start_inline_blame_timer(cx);
1977 }
1978 }
1979
1980 self.blink_manager.update(cx, BlinkManager::pause_blinking);
1981 cx.emit(EditorEvent::SelectionsChanged { local });
1982
1983 if self.selections.disjoint_anchors().len() == 1 {
1984 cx.emit(SearchEvent::ActiveMatchChanged)
1985 }
1986 cx.notify();
1987 }
1988
1989 pub fn change_selections<R>(
1990 &mut self,
1991 autoscroll: Option<Autoscroll>,
1992 cx: &mut ViewContext<Self>,
1993 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
1994 ) -> R {
1995 self.change_selections_inner(autoscroll, true, cx, change)
1996 }
1997
1998 pub fn change_selections_inner<R>(
1999 &mut self,
2000 autoscroll: Option<Autoscroll>,
2001 request_completions: bool,
2002 cx: &mut ViewContext<Self>,
2003 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2004 ) -> R {
2005 let old_cursor_position = self.selections.newest_anchor().head();
2006 self.push_to_selection_history();
2007
2008 let (changed, result) = self.selections.change_with(cx, change);
2009
2010 if changed {
2011 if let Some(autoscroll) = autoscroll {
2012 self.request_autoscroll(autoscroll, cx);
2013 }
2014 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2015
2016 if self.should_open_signature_help_automatically(
2017 &old_cursor_position,
2018 self.signature_help_state.backspace_pressed(),
2019 cx,
2020 ) {
2021 self.show_signature_help(&ShowSignatureHelp, cx);
2022 }
2023 self.signature_help_state.set_backspace_pressed(false);
2024 }
2025
2026 result
2027 }
2028
2029 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2030 where
2031 I: IntoIterator<Item = (Range<S>, T)>,
2032 S: ToOffset,
2033 T: Into<Arc<str>>,
2034 {
2035 if self.read_only(cx) {
2036 return;
2037 }
2038
2039 self.buffer
2040 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2041 }
2042
2043 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2044 where
2045 I: IntoIterator<Item = (Range<S>, T)>,
2046 S: ToOffset,
2047 T: Into<Arc<str>>,
2048 {
2049 if self.read_only(cx) {
2050 return;
2051 }
2052
2053 self.buffer.update(cx, |buffer, cx| {
2054 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2055 });
2056 }
2057
2058 pub fn edit_with_block_indent<I, S, T>(
2059 &mut self,
2060 edits: I,
2061 original_indent_columns: Vec<u32>,
2062 cx: &mut ViewContext<Self>,
2063 ) where
2064 I: IntoIterator<Item = (Range<S>, T)>,
2065 S: ToOffset,
2066 T: Into<Arc<str>>,
2067 {
2068 if self.read_only(cx) {
2069 return;
2070 }
2071
2072 self.buffer.update(cx, |buffer, cx| {
2073 buffer.edit(
2074 edits,
2075 Some(AutoindentMode::Block {
2076 original_indent_columns,
2077 }),
2078 cx,
2079 )
2080 });
2081 }
2082
2083 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2084 self.hide_context_menu(cx);
2085
2086 match phase {
2087 SelectPhase::Begin {
2088 position,
2089 add,
2090 click_count,
2091 } => self.begin_selection(position, add, click_count, cx),
2092 SelectPhase::BeginColumnar {
2093 position,
2094 goal_column,
2095 reset,
2096 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2097 SelectPhase::Extend {
2098 position,
2099 click_count,
2100 } => self.extend_selection(position, click_count, cx),
2101 SelectPhase::Update {
2102 position,
2103 goal_column,
2104 scroll_delta,
2105 } => self.update_selection(position, goal_column, scroll_delta, cx),
2106 SelectPhase::End => self.end_selection(cx),
2107 }
2108 }
2109
2110 fn extend_selection(
2111 &mut self,
2112 position: DisplayPoint,
2113 click_count: usize,
2114 cx: &mut ViewContext<Self>,
2115 ) {
2116 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2117 let tail = self.selections.newest::<usize>(cx).tail();
2118 self.begin_selection(position, false, click_count, cx);
2119
2120 let position = position.to_offset(&display_map, Bias::Left);
2121 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2122
2123 let mut pending_selection = self
2124 .selections
2125 .pending_anchor()
2126 .expect("extend_selection not called with pending selection");
2127 if position >= tail {
2128 pending_selection.start = tail_anchor;
2129 } else {
2130 pending_selection.end = tail_anchor;
2131 pending_selection.reversed = true;
2132 }
2133
2134 let mut pending_mode = self.selections.pending_mode().unwrap();
2135 match &mut pending_mode {
2136 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2137 _ => {}
2138 }
2139
2140 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2141 s.set_pending(pending_selection, pending_mode)
2142 });
2143 }
2144
2145 fn begin_selection(
2146 &mut self,
2147 position: DisplayPoint,
2148 add: bool,
2149 click_count: usize,
2150 cx: &mut ViewContext<Self>,
2151 ) {
2152 if !self.focus_handle.is_focused(cx) {
2153 self.last_focused_descendant = None;
2154 cx.focus(&self.focus_handle);
2155 }
2156
2157 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2158 let buffer = &display_map.buffer_snapshot;
2159 let newest_selection = self.selections.newest_anchor().clone();
2160 let position = display_map.clip_point(position, Bias::Left);
2161
2162 let start;
2163 let end;
2164 let mode;
2165 let mut auto_scroll;
2166 match click_count {
2167 1 => {
2168 start = buffer.anchor_before(position.to_point(&display_map));
2169 end = start;
2170 mode = SelectMode::Character;
2171 auto_scroll = true;
2172 }
2173 2 => {
2174 let range = movement::surrounding_word(&display_map, position);
2175 start = buffer.anchor_before(range.start.to_point(&display_map));
2176 end = buffer.anchor_before(range.end.to_point(&display_map));
2177 mode = SelectMode::Word(start..end);
2178 auto_scroll = true;
2179 }
2180 3 => {
2181 let position = display_map
2182 .clip_point(position, Bias::Left)
2183 .to_point(&display_map);
2184 let line_start = display_map.prev_line_boundary(position).0;
2185 let next_line_start = buffer.clip_point(
2186 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2187 Bias::Left,
2188 );
2189 start = buffer.anchor_before(line_start);
2190 end = buffer.anchor_before(next_line_start);
2191 mode = SelectMode::Line(start..end);
2192 auto_scroll = true;
2193 }
2194 _ => {
2195 start = buffer.anchor_before(0);
2196 end = buffer.anchor_before(buffer.len());
2197 mode = SelectMode::All;
2198 auto_scroll = false;
2199 }
2200 }
2201 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2202
2203 let point_to_delete: Option<usize> = {
2204 let selected_points: Vec<Selection<Point>> =
2205 self.selections.disjoint_in_range(start..end, cx);
2206
2207 if !add || click_count > 1 {
2208 None
2209 } else if !selected_points.is_empty() {
2210 Some(selected_points[0].id)
2211 } else {
2212 let clicked_point_already_selected =
2213 self.selections.disjoint.iter().find(|selection| {
2214 selection.start.to_point(buffer) == start.to_point(buffer)
2215 || selection.end.to_point(buffer) == end.to_point(buffer)
2216 });
2217
2218 clicked_point_already_selected.map(|selection| selection.id)
2219 }
2220 };
2221
2222 let selections_count = self.selections.count();
2223
2224 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2225 if let Some(point_to_delete) = point_to_delete {
2226 s.delete(point_to_delete);
2227
2228 if selections_count == 1 {
2229 s.set_pending_anchor_range(start..end, mode);
2230 }
2231 } else {
2232 if !add {
2233 s.clear_disjoint();
2234 } else if click_count > 1 {
2235 s.delete(newest_selection.id)
2236 }
2237
2238 s.set_pending_anchor_range(start..end, mode);
2239 }
2240 });
2241 }
2242
2243 fn begin_columnar_selection(
2244 &mut self,
2245 position: DisplayPoint,
2246 goal_column: u32,
2247 reset: bool,
2248 cx: &mut ViewContext<Self>,
2249 ) {
2250 if !self.focus_handle.is_focused(cx) {
2251 self.last_focused_descendant = None;
2252 cx.focus(&self.focus_handle);
2253 }
2254
2255 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2256
2257 if reset {
2258 let pointer_position = display_map
2259 .buffer_snapshot
2260 .anchor_before(position.to_point(&display_map));
2261
2262 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2263 s.clear_disjoint();
2264 s.set_pending_anchor_range(
2265 pointer_position..pointer_position,
2266 SelectMode::Character,
2267 );
2268 });
2269 }
2270
2271 let tail = self.selections.newest::<Point>(cx).tail();
2272 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2273
2274 if !reset {
2275 self.select_columns(
2276 tail.to_display_point(&display_map),
2277 position,
2278 goal_column,
2279 &display_map,
2280 cx,
2281 );
2282 }
2283 }
2284
2285 fn update_selection(
2286 &mut self,
2287 position: DisplayPoint,
2288 goal_column: u32,
2289 scroll_delta: gpui::Point<f32>,
2290 cx: &mut ViewContext<Self>,
2291 ) {
2292 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2293
2294 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2295 let tail = tail.to_display_point(&display_map);
2296 self.select_columns(tail, position, goal_column, &display_map, cx);
2297 } else if let Some(mut pending) = self.selections.pending_anchor() {
2298 let buffer = self.buffer.read(cx).snapshot(cx);
2299 let head;
2300 let tail;
2301 let mode = self.selections.pending_mode().unwrap();
2302 match &mode {
2303 SelectMode::Character => {
2304 head = position.to_point(&display_map);
2305 tail = pending.tail().to_point(&buffer);
2306 }
2307 SelectMode::Word(original_range) => {
2308 let original_display_range = original_range.start.to_display_point(&display_map)
2309 ..original_range.end.to_display_point(&display_map);
2310 let original_buffer_range = original_display_range.start.to_point(&display_map)
2311 ..original_display_range.end.to_point(&display_map);
2312 if movement::is_inside_word(&display_map, position)
2313 || original_display_range.contains(&position)
2314 {
2315 let word_range = movement::surrounding_word(&display_map, position);
2316 if word_range.start < original_display_range.start {
2317 head = word_range.start.to_point(&display_map);
2318 } else {
2319 head = word_range.end.to_point(&display_map);
2320 }
2321 } else {
2322 head = position.to_point(&display_map);
2323 }
2324
2325 if head <= original_buffer_range.start {
2326 tail = original_buffer_range.end;
2327 } else {
2328 tail = original_buffer_range.start;
2329 }
2330 }
2331 SelectMode::Line(original_range) => {
2332 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2333
2334 let position = display_map
2335 .clip_point(position, Bias::Left)
2336 .to_point(&display_map);
2337 let line_start = display_map.prev_line_boundary(position).0;
2338 let next_line_start = buffer.clip_point(
2339 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2340 Bias::Left,
2341 );
2342
2343 if line_start < original_range.start {
2344 head = line_start
2345 } else {
2346 head = next_line_start
2347 }
2348
2349 if head <= original_range.start {
2350 tail = original_range.end;
2351 } else {
2352 tail = original_range.start;
2353 }
2354 }
2355 SelectMode::All => {
2356 return;
2357 }
2358 };
2359
2360 if head < tail {
2361 pending.start = buffer.anchor_before(head);
2362 pending.end = buffer.anchor_before(tail);
2363 pending.reversed = true;
2364 } else {
2365 pending.start = buffer.anchor_before(tail);
2366 pending.end = buffer.anchor_before(head);
2367 pending.reversed = false;
2368 }
2369
2370 self.change_selections(None, cx, |s| {
2371 s.set_pending(pending, mode);
2372 });
2373 } else {
2374 log::error!("update_selection dispatched with no pending selection");
2375 return;
2376 }
2377
2378 self.apply_scroll_delta(scroll_delta, cx);
2379 cx.notify();
2380 }
2381
2382 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2383 self.columnar_selection_tail.take();
2384 if self.selections.pending_anchor().is_some() {
2385 let selections = self.selections.all::<usize>(cx);
2386 self.change_selections(None, cx, |s| {
2387 s.select(selections);
2388 s.clear_pending();
2389 });
2390 }
2391 }
2392
2393 fn select_columns(
2394 &mut self,
2395 tail: DisplayPoint,
2396 head: DisplayPoint,
2397 goal_column: u32,
2398 display_map: &DisplaySnapshot,
2399 cx: &mut ViewContext<Self>,
2400 ) {
2401 let start_row = cmp::min(tail.row(), head.row());
2402 let end_row = cmp::max(tail.row(), head.row());
2403 let start_column = cmp::min(tail.column(), goal_column);
2404 let end_column = cmp::max(tail.column(), goal_column);
2405 let reversed = start_column < tail.column();
2406
2407 let selection_ranges = (start_row.0..=end_row.0)
2408 .map(DisplayRow)
2409 .filter_map(|row| {
2410 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2411 let start = display_map
2412 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2413 .to_point(display_map);
2414 let end = display_map
2415 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2416 .to_point(display_map);
2417 if reversed {
2418 Some(end..start)
2419 } else {
2420 Some(start..end)
2421 }
2422 } else {
2423 None
2424 }
2425 })
2426 .collect::<Vec<_>>();
2427
2428 self.change_selections(None, cx, |s| {
2429 s.select_ranges(selection_ranges);
2430 });
2431 cx.notify();
2432 }
2433
2434 pub fn has_pending_nonempty_selection(&self) -> bool {
2435 let pending_nonempty_selection = match self.selections.pending_anchor() {
2436 Some(Selection { start, end, .. }) => start != end,
2437 None => false,
2438 };
2439
2440 pending_nonempty_selection
2441 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2442 }
2443
2444 pub fn has_pending_selection(&self) -> bool {
2445 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2446 }
2447
2448 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2449 if self.clear_expanded_diff_hunks(cx) {
2450 cx.notify();
2451 return;
2452 }
2453 if self.dismiss_menus_and_popups(true, cx) {
2454 return;
2455 }
2456
2457 if self.mode == EditorMode::Full
2458 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2459 {
2460 return;
2461 }
2462
2463 cx.propagate();
2464 }
2465
2466 pub fn dismiss_menus_and_popups(
2467 &mut self,
2468 should_report_inline_completion_event: bool,
2469 cx: &mut ViewContext<Self>,
2470 ) -> bool {
2471 if self.take_rename(false, cx).is_some() {
2472 return true;
2473 }
2474
2475 if hide_hover(self, cx) {
2476 return true;
2477 }
2478
2479 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2480 return true;
2481 }
2482
2483 if self.hide_context_menu(cx).is_some() {
2484 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2485 self.update_visible_inline_completion(cx);
2486 }
2487 return true;
2488 }
2489
2490 if self.mouse_context_menu.take().is_some() {
2491 return true;
2492 }
2493
2494 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2495 return true;
2496 }
2497
2498 if self.snippet_stack.pop().is_some() {
2499 return true;
2500 }
2501
2502 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2503 self.dismiss_diagnostics(cx);
2504 return true;
2505 }
2506
2507 false
2508 }
2509
2510 fn linked_editing_ranges_for(
2511 &self,
2512 selection: Range<text::Anchor>,
2513 cx: &AppContext,
2514 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2515 if self.linked_edit_ranges.is_empty() {
2516 return None;
2517 }
2518 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2519 selection.end.buffer_id.and_then(|end_buffer_id| {
2520 if selection.start.buffer_id != Some(end_buffer_id) {
2521 return None;
2522 }
2523 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2524 let snapshot = buffer.read(cx).snapshot();
2525 self.linked_edit_ranges
2526 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2527 .map(|ranges| (ranges, snapshot, buffer))
2528 })?;
2529 use text::ToOffset as TO;
2530 // find offset from the start of current range to current cursor position
2531 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2532
2533 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2534 let start_difference = start_offset - start_byte_offset;
2535 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2536 let end_difference = end_offset - start_byte_offset;
2537 // Current range has associated linked ranges.
2538 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2539 for range in linked_ranges.iter() {
2540 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2541 let end_offset = start_offset + end_difference;
2542 let start_offset = start_offset + start_difference;
2543 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2544 continue;
2545 }
2546 if self.selections.disjoint_anchor_ranges().iter().any(|s| {
2547 if s.start.buffer_id != selection.start.buffer_id
2548 || s.end.buffer_id != selection.end.buffer_id
2549 {
2550 return false;
2551 }
2552 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2553 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2554 }) {
2555 continue;
2556 }
2557 let start = buffer_snapshot.anchor_after(start_offset);
2558 let end = buffer_snapshot.anchor_after(end_offset);
2559 linked_edits
2560 .entry(buffer.clone())
2561 .or_default()
2562 .push(start..end);
2563 }
2564 Some(linked_edits)
2565 }
2566
2567 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2568 let text: Arc<str> = text.into();
2569
2570 if self.read_only(cx) {
2571 return;
2572 }
2573
2574 let selections = self.selections.all_adjusted(cx);
2575 let mut bracket_inserted = false;
2576 let mut edits = Vec::new();
2577 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2578 let mut new_selections = Vec::with_capacity(selections.len());
2579 let mut new_autoclose_regions = Vec::new();
2580 let snapshot = self.buffer.read(cx).read(cx);
2581
2582 for (selection, autoclose_region) in
2583 self.selections_with_autoclose_regions(selections, &snapshot)
2584 {
2585 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2586 // Determine if the inserted text matches the opening or closing
2587 // bracket of any of this language's bracket pairs.
2588 let mut bracket_pair = None;
2589 let mut is_bracket_pair_start = false;
2590 let mut is_bracket_pair_end = false;
2591 if !text.is_empty() {
2592 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2593 // and they are removing the character that triggered IME popup.
2594 for (pair, enabled) in scope.brackets() {
2595 if !pair.close && !pair.surround {
2596 continue;
2597 }
2598
2599 if enabled && pair.start.ends_with(text.as_ref()) {
2600 let prefix_len = pair.start.len() - text.len();
2601 let preceding_text_matches_prefix = prefix_len == 0
2602 || (selection.start.column >= (prefix_len as u32)
2603 && snapshot.contains_str_at(
2604 Point::new(
2605 selection.start.row,
2606 selection.start.column - (prefix_len as u32),
2607 ),
2608 &pair.start[..prefix_len],
2609 ));
2610 if preceding_text_matches_prefix {
2611 bracket_pair = Some(pair.clone());
2612 is_bracket_pair_start = true;
2613 break;
2614 }
2615 }
2616 if pair.end.as_str() == text.as_ref() {
2617 bracket_pair = Some(pair.clone());
2618 is_bracket_pair_end = true;
2619 break;
2620 }
2621 }
2622 }
2623
2624 if let Some(bracket_pair) = bracket_pair {
2625 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2626 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2627 let auto_surround =
2628 self.use_auto_surround && snapshot_settings.use_auto_surround;
2629 if selection.is_empty() {
2630 if is_bracket_pair_start {
2631 // If the inserted text is a suffix of an opening bracket and the
2632 // selection is preceded by the rest of the opening bracket, then
2633 // insert the closing bracket.
2634 let following_text_allows_autoclose = snapshot
2635 .chars_at(selection.start)
2636 .next()
2637 .map_or(true, |c| scope.should_autoclose_before(c));
2638
2639 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2640 && bracket_pair.start.len() == 1
2641 {
2642 let target = bracket_pair.start.chars().next().unwrap();
2643 let current_line_count = snapshot
2644 .reversed_chars_at(selection.start)
2645 .take_while(|&c| c != '\n')
2646 .filter(|&c| c == target)
2647 .count();
2648 current_line_count % 2 == 1
2649 } else {
2650 false
2651 };
2652
2653 if autoclose
2654 && bracket_pair.close
2655 && following_text_allows_autoclose
2656 && !is_closing_quote
2657 {
2658 let anchor = snapshot.anchor_before(selection.end);
2659 new_selections.push((selection.map(|_| anchor), text.len()));
2660 new_autoclose_regions.push((
2661 anchor,
2662 text.len(),
2663 selection.id,
2664 bracket_pair.clone(),
2665 ));
2666 edits.push((
2667 selection.range(),
2668 format!("{}{}", text, bracket_pair.end).into(),
2669 ));
2670 bracket_inserted = true;
2671 continue;
2672 }
2673 }
2674
2675 if let Some(region) = autoclose_region {
2676 // If the selection is followed by an auto-inserted closing bracket,
2677 // then don't insert that closing bracket again; just move the selection
2678 // past the closing bracket.
2679 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2680 && text.as_ref() == region.pair.end.as_str();
2681 if should_skip {
2682 let anchor = snapshot.anchor_after(selection.end);
2683 new_selections
2684 .push((selection.map(|_| anchor), region.pair.end.len()));
2685 continue;
2686 }
2687 }
2688
2689 let always_treat_brackets_as_autoclosed = snapshot
2690 .settings_at(selection.start, cx)
2691 .always_treat_brackets_as_autoclosed;
2692 if always_treat_brackets_as_autoclosed
2693 && is_bracket_pair_end
2694 && snapshot.contains_str_at(selection.end, text.as_ref())
2695 {
2696 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2697 // and the inserted text is a closing bracket and the selection is followed
2698 // by the closing bracket then move the selection past the closing bracket.
2699 let anchor = snapshot.anchor_after(selection.end);
2700 new_selections.push((selection.map(|_| anchor), text.len()));
2701 continue;
2702 }
2703 }
2704 // If an opening bracket is 1 character long and is typed while
2705 // text is selected, then surround that text with the bracket pair.
2706 else if auto_surround
2707 && bracket_pair.surround
2708 && is_bracket_pair_start
2709 && bracket_pair.start.chars().count() == 1
2710 {
2711 edits.push((selection.start..selection.start, text.clone()));
2712 edits.push((
2713 selection.end..selection.end,
2714 bracket_pair.end.as_str().into(),
2715 ));
2716 bracket_inserted = true;
2717 new_selections.push((
2718 Selection {
2719 id: selection.id,
2720 start: snapshot.anchor_after(selection.start),
2721 end: snapshot.anchor_before(selection.end),
2722 reversed: selection.reversed,
2723 goal: selection.goal,
2724 },
2725 0,
2726 ));
2727 continue;
2728 }
2729 }
2730 }
2731
2732 if self.auto_replace_emoji_shortcode
2733 && selection.is_empty()
2734 && text.as_ref().ends_with(':')
2735 {
2736 if let Some(possible_emoji_short_code) =
2737 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2738 {
2739 if !possible_emoji_short_code.is_empty() {
2740 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2741 let emoji_shortcode_start = Point::new(
2742 selection.start.row,
2743 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2744 );
2745
2746 // Remove shortcode from buffer
2747 edits.push((
2748 emoji_shortcode_start..selection.start,
2749 "".to_string().into(),
2750 ));
2751 new_selections.push((
2752 Selection {
2753 id: selection.id,
2754 start: snapshot.anchor_after(emoji_shortcode_start),
2755 end: snapshot.anchor_before(selection.start),
2756 reversed: selection.reversed,
2757 goal: selection.goal,
2758 },
2759 0,
2760 ));
2761
2762 // Insert emoji
2763 let selection_start_anchor = snapshot.anchor_after(selection.start);
2764 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2765 edits.push((selection.start..selection.end, emoji.to_string().into()));
2766
2767 continue;
2768 }
2769 }
2770 }
2771 }
2772
2773 // If not handling any auto-close operation, then just replace the selected
2774 // text with the given input and move the selection to the end of the
2775 // newly inserted text.
2776 let anchor = snapshot.anchor_after(selection.end);
2777 if !self.linked_edit_ranges.is_empty() {
2778 let start_anchor = snapshot.anchor_before(selection.start);
2779
2780 let is_word_char = text.chars().next().map_or(true, |char| {
2781 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2782 classifier.is_word(char)
2783 });
2784
2785 if is_word_char {
2786 if let Some(ranges) = self
2787 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2788 {
2789 for (buffer, edits) in ranges {
2790 linked_edits
2791 .entry(buffer.clone())
2792 .or_default()
2793 .extend(edits.into_iter().map(|range| (range, text.clone())));
2794 }
2795 }
2796 }
2797 }
2798
2799 new_selections.push((selection.map(|_| anchor), 0));
2800 edits.push((selection.start..selection.end, text.clone()));
2801 }
2802
2803 drop(snapshot);
2804
2805 self.transact(cx, |this, cx| {
2806 this.buffer.update(cx, |buffer, cx| {
2807 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2808 });
2809 for (buffer, edits) in linked_edits {
2810 buffer.update(cx, |buffer, cx| {
2811 let snapshot = buffer.snapshot();
2812 let edits = edits
2813 .into_iter()
2814 .map(|(range, text)| {
2815 use text::ToPoint as TP;
2816 let end_point = TP::to_point(&range.end, &snapshot);
2817 let start_point = TP::to_point(&range.start, &snapshot);
2818 (start_point..end_point, text)
2819 })
2820 .sorted_by_key(|(range, _)| range.start)
2821 .collect::<Vec<_>>();
2822 buffer.edit(edits, None, cx);
2823 })
2824 }
2825 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2826 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2827 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2828 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2829 .zip(new_selection_deltas)
2830 .map(|(selection, delta)| Selection {
2831 id: selection.id,
2832 start: selection.start + delta,
2833 end: selection.end + delta,
2834 reversed: selection.reversed,
2835 goal: SelectionGoal::None,
2836 })
2837 .collect::<Vec<_>>();
2838
2839 let mut i = 0;
2840 for (position, delta, selection_id, pair) in new_autoclose_regions {
2841 let position = position.to_offset(&map.buffer_snapshot) + delta;
2842 let start = map.buffer_snapshot.anchor_before(position);
2843 let end = map.buffer_snapshot.anchor_after(position);
2844 while let Some(existing_state) = this.autoclose_regions.get(i) {
2845 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2846 Ordering::Less => i += 1,
2847 Ordering::Greater => break,
2848 Ordering::Equal => {
2849 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2850 Ordering::Less => i += 1,
2851 Ordering::Equal => break,
2852 Ordering::Greater => break,
2853 }
2854 }
2855 }
2856 }
2857 this.autoclose_regions.insert(
2858 i,
2859 AutocloseRegion {
2860 selection_id,
2861 range: start..end,
2862 pair,
2863 },
2864 );
2865 }
2866
2867 let had_active_inline_completion = this.has_active_inline_completion();
2868 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2869 s.select(new_selections)
2870 });
2871
2872 if !bracket_inserted {
2873 if let Some(on_type_format_task) =
2874 this.trigger_on_type_formatting(text.to_string(), cx)
2875 {
2876 on_type_format_task.detach_and_log_err(cx);
2877 }
2878 }
2879
2880 let editor_settings = EditorSettings::get_global(cx);
2881 if bracket_inserted
2882 && (editor_settings.auto_signature_help
2883 || editor_settings.show_signature_help_after_edits)
2884 {
2885 this.show_signature_help(&ShowSignatureHelp, cx);
2886 }
2887
2888 let trigger_in_words =
2889 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2890 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2891 linked_editing_ranges::refresh_linked_ranges(this, cx);
2892 this.refresh_inline_completion(true, false, cx);
2893 });
2894 }
2895
2896 fn find_possible_emoji_shortcode_at_position(
2897 snapshot: &MultiBufferSnapshot,
2898 position: Point,
2899 ) -> Option<String> {
2900 let mut chars = Vec::new();
2901 let mut found_colon = false;
2902 for char in snapshot.reversed_chars_at(position).take(100) {
2903 // Found a possible emoji shortcode in the middle of the buffer
2904 if found_colon {
2905 if char.is_whitespace() {
2906 chars.reverse();
2907 return Some(chars.iter().collect());
2908 }
2909 // If the previous character is not a whitespace, we are in the middle of a word
2910 // and we only want to complete the shortcode if the word is made up of other emojis
2911 let mut containing_word = String::new();
2912 for ch in snapshot
2913 .reversed_chars_at(position)
2914 .skip(chars.len() + 1)
2915 .take(100)
2916 {
2917 if ch.is_whitespace() {
2918 break;
2919 }
2920 containing_word.push(ch);
2921 }
2922 let containing_word = containing_word.chars().rev().collect::<String>();
2923 if util::word_consists_of_emojis(containing_word.as_str()) {
2924 chars.reverse();
2925 return Some(chars.iter().collect());
2926 }
2927 }
2928
2929 if char.is_whitespace() || !char.is_ascii() {
2930 return None;
2931 }
2932 if char == ':' {
2933 found_colon = true;
2934 } else {
2935 chars.push(char);
2936 }
2937 }
2938 // Found a possible emoji shortcode at the beginning of the buffer
2939 chars.reverse();
2940 Some(chars.iter().collect())
2941 }
2942
2943 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2944 self.transact(cx, |this, cx| {
2945 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2946 let selections = this.selections.all::<usize>(cx);
2947 let multi_buffer = this.buffer.read(cx);
2948 let buffer = multi_buffer.snapshot(cx);
2949 selections
2950 .iter()
2951 .map(|selection| {
2952 let start_point = selection.start.to_point(&buffer);
2953 let mut indent =
2954 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2955 indent.len = cmp::min(indent.len, start_point.column);
2956 let start = selection.start;
2957 let end = selection.end;
2958 let selection_is_empty = start == end;
2959 let language_scope = buffer.language_scope_at(start);
2960 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
2961 &language_scope
2962 {
2963 let leading_whitespace_len = buffer
2964 .reversed_chars_at(start)
2965 .take_while(|c| c.is_whitespace() && *c != '\n')
2966 .map(|c| c.len_utf8())
2967 .sum::<usize>();
2968
2969 let trailing_whitespace_len = buffer
2970 .chars_at(end)
2971 .take_while(|c| c.is_whitespace() && *c != '\n')
2972 .map(|c| c.len_utf8())
2973 .sum::<usize>();
2974
2975 let insert_extra_newline =
2976 language.brackets().any(|(pair, enabled)| {
2977 let pair_start = pair.start.trim_end();
2978 let pair_end = pair.end.trim_start();
2979
2980 enabled
2981 && pair.newline
2982 && buffer.contains_str_at(
2983 end + trailing_whitespace_len,
2984 pair_end,
2985 )
2986 && buffer.contains_str_at(
2987 (start - leading_whitespace_len)
2988 .saturating_sub(pair_start.len()),
2989 pair_start,
2990 )
2991 });
2992
2993 // Comment extension on newline is allowed only for cursor selections
2994 let comment_delimiter = maybe!({
2995 if !selection_is_empty {
2996 return None;
2997 }
2998
2999 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3000 return None;
3001 }
3002
3003 let delimiters = language.line_comment_prefixes();
3004 let max_len_of_delimiter =
3005 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3006 let (snapshot, range) =
3007 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3008
3009 let mut index_of_first_non_whitespace = 0;
3010 let comment_candidate = snapshot
3011 .chars_for_range(range)
3012 .skip_while(|c| {
3013 let should_skip = c.is_whitespace();
3014 if should_skip {
3015 index_of_first_non_whitespace += 1;
3016 }
3017 should_skip
3018 })
3019 .take(max_len_of_delimiter)
3020 .collect::<String>();
3021 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3022 comment_candidate.starts_with(comment_prefix.as_ref())
3023 })?;
3024 let cursor_is_placed_after_comment_marker =
3025 index_of_first_non_whitespace + comment_prefix.len()
3026 <= start_point.column as usize;
3027 if cursor_is_placed_after_comment_marker {
3028 Some(comment_prefix.clone())
3029 } else {
3030 None
3031 }
3032 });
3033 (comment_delimiter, insert_extra_newline)
3034 } else {
3035 (None, false)
3036 };
3037
3038 let capacity_for_delimiter = comment_delimiter
3039 .as_deref()
3040 .map(str::len)
3041 .unwrap_or_default();
3042 let mut new_text =
3043 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3044 new_text.push('\n');
3045 new_text.extend(indent.chars());
3046 if let Some(delimiter) = &comment_delimiter {
3047 new_text.push_str(delimiter);
3048 }
3049 if insert_extra_newline {
3050 new_text = new_text.repeat(2);
3051 }
3052
3053 let anchor = buffer.anchor_after(end);
3054 let new_selection = selection.map(|_| anchor);
3055 (
3056 (start..end, new_text),
3057 (insert_extra_newline, new_selection),
3058 )
3059 })
3060 .unzip()
3061 };
3062
3063 this.edit_with_autoindent(edits, cx);
3064 let buffer = this.buffer.read(cx).snapshot(cx);
3065 let new_selections = selection_fixup_info
3066 .into_iter()
3067 .map(|(extra_newline_inserted, new_selection)| {
3068 let mut cursor = new_selection.end.to_point(&buffer);
3069 if extra_newline_inserted {
3070 cursor.row -= 1;
3071 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3072 }
3073 new_selection.map(|_| cursor)
3074 })
3075 .collect();
3076
3077 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3078 this.refresh_inline_completion(true, false, cx);
3079 });
3080 }
3081
3082 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3083 let buffer = self.buffer.read(cx);
3084 let snapshot = buffer.snapshot(cx);
3085
3086 let mut edits = Vec::new();
3087 let mut rows = Vec::new();
3088
3089 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3090 let cursor = selection.head();
3091 let row = cursor.row;
3092
3093 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3094
3095 let newline = "\n".to_string();
3096 edits.push((start_of_line..start_of_line, newline));
3097
3098 rows.push(row + rows_inserted as u32);
3099 }
3100
3101 self.transact(cx, |editor, cx| {
3102 editor.edit(edits, cx);
3103
3104 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3105 let mut index = 0;
3106 s.move_cursors_with(|map, _, _| {
3107 let row = rows[index];
3108 index += 1;
3109
3110 let point = Point::new(row, 0);
3111 let boundary = map.next_line_boundary(point).1;
3112 let clipped = map.clip_point(boundary, Bias::Left);
3113
3114 (clipped, SelectionGoal::None)
3115 });
3116 });
3117
3118 let mut indent_edits = Vec::new();
3119 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3120 for row in rows {
3121 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3122 for (row, indent) in indents {
3123 if indent.len == 0 {
3124 continue;
3125 }
3126
3127 let text = match indent.kind {
3128 IndentKind::Space => " ".repeat(indent.len as usize),
3129 IndentKind::Tab => "\t".repeat(indent.len as usize),
3130 };
3131 let point = Point::new(row.0, 0);
3132 indent_edits.push((point..point, text));
3133 }
3134 }
3135 editor.edit(indent_edits, cx);
3136 });
3137 }
3138
3139 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3140 let buffer = self.buffer.read(cx);
3141 let snapshot = buffer.snapshot(cx);
3142
3143 let mut edits = Vec::new();
3144 let mut rows = Vec::new();
3145 let mut rows_inserted = 0;
3146
3147 for selection in self.selections.all_adjusted(cx) {
3148 let cursor = selection.head();
3149 let row = cursor.row;
3150
3151 let point = Point::new(row + 1, 0);
3152 let start_of_line = snapshot.clip_point(point, Bias::Left);
3153
3154 let newline = "\n".to_string();
3155 edits.push((start_of_line..start_of_line, newline));
3156
3157 rows_inserted += 1;
3158 rows.push(row + rows_inserted);
3159 }
3160
3161 self.transact(cx, |editor, cx| {
3162 editor.edit(edits, cx);
3163
3164 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3165 let mut index = 0;
3166 s.move_cursors_with(|map, _, _| {
3167 let row = rows[index];
3168 index += 1;
3169
3170 let point = Point::new(row, 0);
3171 let boundary = map.next_line_boundary(point).1;
3172 let clipped = map.clip_point(boundary, Bias::Left);
3173
3174 (clipped, SelectionGoal::None)
3175 });
3176 });
3177
3178 let mut indent_edits = Vec::new();
3179 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3180 for row in rows {
3181 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3182 for (row, indent) in indents {
3183 if indent.len == 0 {
3184 continue;
3185 }
3186
3187 let text = match indent.kind {
3188 IndentKind::Space => " ".repeat(indent.len as usize),
3189 IndentKind::Tab => "\t".repeat(indent.len as usize),
3190 };
3191 let point = Point::new(row.0, 0);
3192 indent_edits.push((point..point, text));
3193 }
3194 }
3195 editor.edit(indent_edits, cx);
3196 });
3197 }
3198
3199 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3200 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3201 original_indent_columns: Vec::new(),
3202 });
3203 self.insert_with_autoindent_mode(text, autoindent, cx);
3204 }
3205
3206 fn insert_with_autoindent_mode(
3207 &mut self,
3208 text: &str,
3209 autoindent_mode: Option<AutoindentMode>,
3210 cx: &mut ViewContext<Self>,
3211 ) {
3212 if self.read_only(cx) {
3213 return;
3214 }
3215
3216 let text: Arc<str> = text.into();
3217 self.transact(cx, |this, cx| {
3218 let old_selections = this.selections.all_adjusted(cx);
3219 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3220 let anchors = {
3221 let snapshot = buffer.read(cx);
3222 old_selections
3223 .iter()
3224 .map(|s| {
3225 let anchor = snapshot.anchor_after(s.head());
3226 s.map(|_| anchor)
3227 })
3228 .collect::<Vec<_>>()
3229 };
3230 buffer.edit(
3231 old_selections
3232 .iter()
3233 .map(|s| (s.start..s.end, text.clone())),
3234 autoindent_mode,
3235 cx,
3236 );
3237 anchors
3238 });
3239
3240 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3241 s.select_anchors(selection_anchors);
3242 })
3243 });
3244 }
3245
3246 fn trigger_completion_on_input(
3247 &mut self,
3248 text: &str,
3249 trigger_in_words: bool,
3250 cx: &mut ViewContext<Self>,
3251 ) {
3252 if self.is_completion_trigger(text, trigger_in_words, cx) {
3253 self.show_completions(
3254 &ShowCompletions {
3255 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3256 },
3257 cx,
3258 );
3259 } else {
3260 self.hide_context_menu(cx);
3261 }
3262 }
3263
3264 fn is_completion_trigger(
3265 &self,
3266 text: &str,
3267 trigger_in_words: bool,
3268 cx: &mut ViewContext<Self>,
3269 ) -> bool {
3270 let position = self.selections.newest_anchor().head();
3271 let multibuffer = self.buffer.read(cx);
3272 let Some(buffer) = position
3273 .buffer_id
3274 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3275 else {
3276 return false;
3277 };
3278
3279 if let Some(completion_provider) = &self.completion_provider {
3280 completion_provider.is_completion_trigger(
3281 &buffer,
3282 position.text_anchor,
3283 text,
3284 trigger_in_words,
3285 cx,
3286 )
3287 } else {
3288 false
3289 }
3290 }
3291
3292 /// If any empty selections is touching the start of its innermost containing autoclose
3293 /// region, expand it to select the brackets.
3294 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3295 let selections = self.selections.all::<usize>(cx);
3296 let buffer = self.buffer.read(cx).read(cx);
3297 let new_selections = self
3298 .selections_with_autoclose_regions(selections, &buffer)
3299 .map(|(mut selection, region)| {
3300 if !selection.is_empty() {
3301 return selection;
3302 }
3303
3304 if let Some(region) = region {
3305 let mut range = region.range.to_offset(&buffer);
3306 if selection.start == range.start && range.start >= region.pair.start.len() {
3307 range.start -= region.pair.start.len();
3308 if buffer.contains_str_at(range.start, ®ion.pair.start)
3309 && buffer.contains_str_at(range.end, ®ion.pair.end)
3310 {
3311 range.end += region.pair.end.len();
3312 selection.start = range.start;
3313 selection.end = range.end;
3314
3315 return selection;
3316 }
3317 }
3318 }
3319
3320 let always_treat_brackets_as_autoclosed = buffer
3321 .settings_at(selection.start, cx)
3322 .always_treat_brackets_as_autoclosed;
3323
3324 if !always_treat_brackets_as_autoclosed {
3325 return selection;
3326 }
3327
3328 if let Some(scope) = buffer.language_scope_at(selection.start) {
3329 for (pair, enabled) in scope.brackets() {
3330 if !enabled || !pair.close {
3331 continue;
3332 }
3333
3334 if buffer.contains_str_at(selection.start, &pair.end) {
3335 let pair_start_len = pair.start.len();
3336 if buffer.contains_str_at(
3337 selection.start.saturating_sub(pair_start_len),
3338 &pair.start,
3339 ) {
3340 selection.start -= pair_start_len;
3341 selection.end += pair.end.len();
3342
3343 return selection;
3344 }
3345 }
3346 }
3347 }
3348
3349 selection
3350 })
3351 .collect();
3352
3353 drop(buffer);
3354 self.change_selections(None, cx, |selections| selections.select(new_selections));
3355 }
3356
3357 /// Iterate the given selections, and for each one, find the smallest surrounding
3358 /// autoclose region. This uses the ordering of the selections and the autoclose
3359 /// regions to avoid repeated comparisons.
3360 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3361 &'a self,
3362 selections: impl IntoIterator<Item = Selection<D>>,
3363 buffer: &'a MultiBufferSnapshot,
3364 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3365 let mut i = 0;
3366 let mut regions = self.autoclose_regions.as_slice();
3367 selections.into_iter().map(move |selection| {
3368 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3369
3370 let mut enclosing = None;
3371 while let Some(pair_state) = regions.get(i) {
3372 if pair_state.range.end.to_offset(buffer) < range.start {
3373 regions = ®ions[i + 1..];
3374 i = 0;
3375 } else if pair_state.range.start.to_offset(buffer) > range.end {
3376 break;
3377 } else {
3378 if pair_state.selection_id == selection.id {
3379 enclosing = Some(pair_state);
3380 }
3381 i += 1;
3382 }
3383 }
3384
3385 (selection, enclosing)
3386 })
3387 }
3388
3389 /// Remove any autoclose regions that no longer contain their selection.
3390 fn invalidate_autoclose_regions(
3391 &mut self,
3392 mut selections: &[Selection<Anchor>],
3393 buffer: &MultiBufferSnapshot,
3394 ) {
3395 self.autoclose_regions.retain(|state| {
3396 let mut i = 0;
3397 while let Some(selection) = selections.get(i) {
3398 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3399 selections = &selections[1..];
3400 continue;
3401 }
3402 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3403 break;
3404 }
3405 if selection.id == state.selection_id {
3406 return true;
3407 } else {
3408 i += 1;
3409 }
3410 }
3411 false
3412 });
3413 }
3414
3415 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3416 let offset = position.to_offset(buffer);
3417 let (word_range, kind) = buffer.surrounding_word(offset, true);
3418 if offset > word_range.start && kind == Some(CharKind::Word) {
3419 Some(
3420 buffer
3421 .text_for_range(word_range.start..offset)
3422 .collect::<String>(),
3423 )
3424 } else {
3425 None
3426 }
3427 }
3428
3429 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3430 self.refresh_inlay_hints(
3431 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3432 cx,
3433 );
3434 }
3435
3436 pub fn inlay_hints_enabled(&self) -> bool {
3437 self.inlay_hint_cache.enabled
3438 }
3439
3440 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3441 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3442 return;
3443 }
3444
3445 let reason_description = reason.description();
3446 let ignore_debounce = matches!(
3447 reason,
3448 InlayHintRefreshReason::SettingsChange(_)
3449 | InlayHintRefreshReason::Toggle(_)
3450 | InlayHintRefreshReason::ExcerptsRemoved(_)
3451 );
3452 let (invalidate_cache, required_languages) = match reason {
3453 InlayHintRefreshReason::Toggle(enabled) => {
3454 self.inlay_hint_cache.enabled = enabled;
3455 if enabled {
3456 (InvalidationStrategy::RefreshRequested, None)
3457 } else {
3458 self.inlay_hint_cache.clear();
3459 self.splice_inlays(
3460 self.visible_inlay_hints(cx)
3461 .iter()
3462 .map(|inlay| inlay.id)
3463 .collect(),
3464 Vec::new(),
3465 cx,
3466 );
3467 return;
3468 }
3469 }
3470 InlayHintRefreshReason::SettingsChange(new_settings) => {
3471 match self.inlay_hint_cache.update_settings(
3472 &self.buffer,
3473 new_settings,
3474 self.visible_inlay_hints(cx),
3475 cx,
3476 ) {
3477 ControlFlow::Break(Some(InlaySplice {
3478 to_remove,
3479 to_insert,
3480 })) => {
3481 self.splice_inlays(to_remove, to_insert, cx);
3482 return;
3483 }
3484 ControlFlow::Break(None) => return,
3485 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3486 }
3487 }
3488 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3489 if let Some(InlaySplice {
3490 to_remove,
3491 to_insert,
3492 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3493 {
3494 self.splice_inlays(to_remove, to_insert, cx);
3495 }
3496 return;
3497 }
3498 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3499 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3500 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3501 }
3502 InlayHintRefreshReason::RefreshRequested => {
3503 (InvalidationStrategy::RefreshRequested, None)
3504 }
3505 };
3506
3507 if let Some(InlaySplice {
3508 to_remove,
3509 to_insert,
3510 }) = self.inlay_hint_cache.spawn_hint_refresh(
3511 reason_description,
3512 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3513 invalidate_cache,
3514 ignore_debounce,
3515 cx,
3516 ) {
3517 self.splice_inlays(to_remove, to_insert, cx);
3518 }
3519 }
3520
3521 fn visible_inlay_hints(&self, cx: &ViewContext<Editor>) -> Vec<Inlay> {
3522 self.display_map
3523 .read(cx)
3524 .current_inlays()
3525 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3526 .cloned()
3527 .collect()
3528 }
3529
3530 pub fn excerpts_for_inlay_hints_query(
3531 &self,
3532 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3533 cx: &mut ViewContext<Editor>,
3534 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3535 let Some(project) = self.project.as_ref() else {
3536 return HashMap::default();
3537 };
3538 let project = project.read(cx);
3539 let multi_buffer = self.buffer().read(cx);
3540 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3541 let multi_buffer_visible_start = self
3542 .scroll_manager
3543 .anchor()
3544 .anchor
3545 .to_point(&multi_buffer_snapshot);
3546 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3547 multi_buffer_visible_start
3548 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3549 Bias::Left,
3550 );
3551 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3552 multi_buffer_snapshot
3553 .range_to_buffer_ranges(multi_buffer_visible_range)
3554 .into_iter()
3555 .filter(|(_, excerpt_visible_range)| !excerpt_visible_range.is_empty())
3556 .filter_map(|(excerpt, excerpt_visible_range)| {
3557 let buffer_file = project::File::from_dyn(excerpt.buffer().file())?;
3558 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3559 let worktree_entry = buffer_worktree
3560 .read(cx)
3561 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3562 if worktree_entry.is_ignored {
3563 return None;
3564 }
3565
3566 let language = excerpt.buffer().language()?;
3567 if let Some(restrict_to_languages) = restrict_to_languages {
3568 if !restrict_to_languages.contains(language) {
3569 return None;
3570 }
3571 }
3572 Some((
3573 excerpt.id(),
3574 (
3575 multi_buffer.buffer(excerpt.buffer_id()).unwrap(),
3576 excerpt.buffer().version().clone(),
3577 excerpt_visible_range,
3578 ),
3579 ))
3580 })
3581 .collect()
3582 }
3583
3584 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3585 TextLayoutDetails {
3586 text_system: cx.text_system().clone(),
3587 editor_style: self.style.clone().unwrap(),
3588 rem_size: cx.rem_size(),
3589 scroll_anchor: self.scroll_manager.anchor(),
3590 visible_rows: self.visible_line_count(),
3591 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3592 }
3593 }
3594
3595 fn splice_inlays(
3596 &self,
3597 to_remove: Vec<InlayId>,
3598 to_insert: Vec<Inlay>,
3599 cx: &mut ViewContext<Self>,
3600 ) {
3601 self.display_map.update(cx, |display_map, cx| {
3602 display_map.splice_inlays(to_remove, to_insert, cx)
3603 });
3604 cx.notify();
3605 }
3606
3607 fn trigger_on_type_formatting(
3608 &self,
3609 input: String,
3610 cx: &mut ViewContext<Self>,
3611 ) -> Option<Task<Result<()>>> {
3612 if input.len() != 1 {
3613 return None;
3614 }
3615
3616 let project = self.project.as_ref()?;
3617 let position = self.selections.newest_anchor().head();
3618 let (buffer, buffer_position) = self
3619 .buffer
3620 .read(cx)
3621 .text_anchor_for_position(position, cx)?;
3622
3623 let settings = language_settings::language_settings(
3624 buffer
3625 .read(cx)
3626 .language_at(buffer_position)
3627 .map(|l| l.name()),
3628 buffer.read(cx).file(),
3629 cx,
3630 );
3631 if !settings.use_on_type_format {
3632 return None;
3633 }
3634
3635 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3636 // hence we do LSP request & edit on host side only — add formats to host's history.
3637 let push_to_lsp_host_history = true;
3638 // If this is not the host, append its history with new edits.
3639 let push_to_client_history = project.read(cx).is_via_collab();
3640
3641 let on_type_formatting = project.update(cx, |project, cx| {
3642 project.on_type_format(
3643 buffer.clone(),
3644 buffer_position,
3645 input,
3646 push_to_lsp_host_history,
3647 cx,
3648 )
3649 });
3650 Some(cx.spawn(|editor, mut cx| async move {
3651 if let Some(transaction) = on_type_formatting.await? {
3652 if push_to_client_history {
3653 buffer
3654 .update(&mut cx, |buffer, _| {
3655 buffer.push_transaction(transaction, Instant::now());
3656 })
3657 .ok();
3658 }
3659 editor.update(&mut cx, |editor, cx| {
3660 editor.refresh_document_highlights(cx);
3661 })?;
3662 }
3663 Ok(())
3664 }))
3665 }
3666
3667 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3668 if self.pending_rename.is_some() {
3669 return;
3670 }
3671
3672 let Some(provider) = self.completion_provider.as_ref() else {
3673 return;
3674 };
3675
3676 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3677 return;
3678 }
3679
3680 let position = self.selections.newest_anchor().head();
3681 let (buffer, buffer_position) =
3682 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3683 output
3684 } else {
3685 return;
3686 };
3687 let show_completion_documentation = buffer
3688 .read(cx)
3689 .snapshot()
3690 .settings_at(buffer_position, cx)
3691 .show_completion_documentation;
3692
3693 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3694
3695 let trigger_kind = match &options.trigger {
3696 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3697 CompletionTriggerKind::TRIGGER_CHARACTER
3698 }
3699 _ => CompletionTriggerKind::INVOKED,
3700 };
3701 let completion_context = CompletionContext {
3702 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3703 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3704 Some(String::from(trigger))
3705 } else {
3706 None
3707 }
3708 }),
3709 trigger_kind,
3710 };
3711 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3712 let sort_completions = provider.sort_completions();
3713
3714 let id = post_inc(&mut self.next_completion_id);
3715 let task = cx.spawn(|editor, mut cx| {
3716 async move {
3717 editor.update(&mut cx, |this, _| {
3718 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3719 })?;
3720 let completions = completions.await.log_err();
3721 let menu = if let Some(completions) = completions {
3722 let mut menu = CompletionsMenu::new(
3723 id,
3724 sort_completions,
3725 show_completion_documentation,
3726 position,
3727 buffer.clone(),
3728 completions.into(),
3729 );
3730
3731 menu.filter(query.as_deref(), cx.background_executor().clone())
3732 .await;
3733
3734 menu.visible().then_some(menu)
3735 } else {
3736 None
3737 };
3738
3739 editor.update(&mut cx, |editor, cx| {
3740 match editor.context_menu.borrow().as_ref() {
3741 None => {}
3742 Some(CodeContextMenu::Completions(prev_menu)) => {
3743 if prev_menu.id > id {
3744 return;
3745 }
3746 }
3747 _ => return,
3748 }
3749
3750 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3751 let mut menu = menu.unwrap();
3752 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3753
3754 if editor.show_inline_completions_in_menu(cx) {
3755 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3756 menu.show_inline_completion_hint(hint);
3757 }
3758 } else {
3759 editor.discard_inline_completion(false, cx);
3760 }
3761
3762 *editor.context_menu.borrow_mut() =
3763 Some(CodeContextMenu::Completions(menu));
3764
3765 cx.notify();
3766 } else if editor.completion_tasks.len() <= 1 {
3767 // If there are no more completion tasks and the last menu was
3768 // empty, we should hide it.
3769 let was_hidden = editor.hide_context_menu(cx).is_none();
3770 // If it was already hidden and we don't show inline
3771 // completions in the menu, we should also show the
3772 // inline-completion when available.
3773 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3774 editor.update_visible_inline_completion(cx);
3775 }
3776 }
3777 })?;
3778
3779 Ok::<_, anyhow::Error>(())
3780 }
3781 .log_err()
3782 });
3783
3784 self.completion_tasks.push((id, task));
3785 }
3786
3787 pub fn confirm_completion(
3788 &mut self,
3789 action: &ConfirmCompletion,
3790 cx: &mut ViewContext<Self>,
3791 ) -> Option<Task<Result<()>>> {
3792 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3793 }
3794
3795 pub fn compose_completion(
3796 &mut self,
3797 action: &ComposeCompletion,
3798 cx: &mut ViewContext<Self>,
3799 ) -> Option<Task<Result<()>>> {
3800 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3801 }
3802
3803 fn do_completion(
3804 &mut self,
3805 item_ix: Option<usize>,
3806 intent: CompletionIntent,
3807 cx: &mut ViewContext<Editor>,
3808 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3809 use language::ToOffset as _;
3810
3811 let completions_menu =
3812 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3813 menu
3814 } else {
3815 return None;
3816 };
3817
3818 let mat = completions_menu
3819 .entries
3820 .get(item_ix.unwrap_or(completions_menu.selected_item))?;
3821
3822 let mat = match mat {
3823 CompletionEntry::InlineCompletionHint { .. } => {
3824 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3825 cx.stop_propagation();
3826 return Some(Task::ready(Ok(())));
3827 }
3828 CompletionEntry::Match(mat) => {
3829 if self.show_inline_completions_in_menu(cx) {
3830 self.discard_inline_completion(true, cx);
3831 }
3832 mat
3833 }
3834 };
3835
3836 let buffer_handle = completions_menu.buffer;
3837 let completion = completions_menu
3838 .completions
3839 .borrow()
3840 .get(mat.candidate_id)?
3841 .clone();
3842 cx.stop_propagation();
3843
3844 let snippet;
3845 let text;
3846
3847 if completion.is_snippet() {
3848 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3849 text = snippet.as_ref().unwrap().text.clone();
3850 } else {
3851 snippet = None;
3852 text = completion.new_text.clone();
3853 };
3854 let selections = self.selections.all::<usize>(cx);
3855 let buffer = buffer_handle.read(cx);
3856 let old_range = completion.old_range.to_offset(buffer);
3857 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3858
3859 let newest_selection = self.selections.newest_anchor();
3860 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3861 return None;
3862 }
3863
3864 let lookbehind = newest_selection
3865 .start
3866 .text_anchor
3867 .to_offset(buffer)
3868 .saturating_sub(old_range.start);
3869 let lookahead = old_range
3870 .end
3871 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3872 let mut common_prefix_len = old_text
3873 .bytes()
3874 .zip(text.bytes())
3875 .take_while(|(a, b)| a == b)
3876 .count();
3877
3878 let snapshot = self.buffer.read(cx).snapshot(cx);
3879 let mut range_to_replace: Option<Range<isize>> = None;
3880 let mut ranges = Vec::new();
3881 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3882 for selection in &selections {
3883 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3884 let start = selection.start.saturating_sub(lookbehind);
3885 let end = selection.end + lookahead;
3886 if selection.id == newest_selection.id {
3887 range_to_replace = Some(
3888 ((start + common_prefix_len) as isize - selection.start as isize)
3889 ..(end as isize - selection.start as isize),
3890 );
3891 }
3892 ranges.push(start + common_prefix_len..end);
3893 } else {
3894 common_prefix_len = 0;
3895 ranges.clear();
3896 ranges.extend(selections.iter().map(|s| {
3897 if s.id == newest_selection.id {
3898 range_to_replace = Some(
3899 old_range.start.to_offset_utf16(&snapshot).0 as isize
3900 - selection.start as isize
3901 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3902 - selection.start as isize,
3903 );
3904 old_range.clone()
3905 } else {
3906 s.start..s.end
3907 }
3908 }));
3909 break;
3910 }
3911 if !self.linked_edit_ranges.is_empty() {
3912 let start_anchor = snapshot.anchor_before(selection.head());
3913 let end_anchor = snapshot.anchor_after(selection.tail());
3914 if let Some(ranges) = self
3915 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3916 {
3917 for (buffer, edits) in ranges {
3918 linked_edits.entry(buffer.clone()).or_default().extend(
3919 edits
3920 .into_iter()
3921 .map(|range| (range, text[common_prefix_len..].to_owned())),
3922 );
3923 }
3924 }
3925 }
3926 }
3927 let text = &text[common_prefix_len..];
3928
3929 cx.emit(EditorEvent::InputHandled {
3930 utf16_range_to_replace: range_to_replace,
3931 text: text.into(),
3932 });
3933
3934 self.transact(cx, |this, cx| {
3935 if let Some(mut snippet) = snippet {
3936 snippet.text = text.to_string();
3937 for tabstop in snippet
3938 .tabstops
3939 .iter_mut()
3940 .flat_map(|tabstop| tabstop.ranges.iter_mut())
3941 {
3942 tabstop.start -= common_prefix_len as isize;
3943 tabstop.end -= common_prefix_len as isize;
3944 }
3945
3946 this.insert_snippet(&ranges, snippet, cx).log_err();
3947 } else {
3948 this.buffer.update(cx, |buffer, cx| {
3949 buffer.edit(
3950 ranges.iter().map(|range| (range.clone(), text)),
3951 this.autoindent_mode.clone(),
3952 cx,
3953 );
3954 });
3955 }
3956 for (buffer, edits) in linked_edits {
3957 buffer.update(cx, |buffer, cx| {
3958 let snapshot = buffer.snapshot();
3959 let edits = edits
3960 .into_iter()
3961 .map(|(range, text)| {
3962 use text::ToPoint as TP;
3963 let end_point = TP::to_point(&range.end, &snapshot);
3964 let start_point = TP::to_point(&range.start, &snapshot);
3965 (start_point..end_point, text)
3966 })
3967 .sorted_by_key(|(range, _)| range.start)
3968 .collect::<Vec<_>>();
3969 buffer.edit(edits, None, cx);
3970 })
3971 }
3972
3973 this.refresh_inline_completion(true, false, cx);
3974 });
3975
3976 let show_new_completions_on_confirm = completion
3977 .confirm
3978 .as_ref()
3979 .map_or(false, |confirm| confirm(intent, cx));
3980 if show_new_completions_on_confirm {
3981 self.show_completions(&ShowCompletions { trigger: None }, cx);
3982 }
3983
3984 let provider = self.completion_provider.as_ref()?;
3985 drop(completion);
3986 let apply_edits = provider.apply_additional_edits_for_completion(
3987 buffer_handle,
3988 completions_menu.completions.clone(),
3989 mat.candidate_id,
3990 true,
3991 cx,
3992 );
3993
3994 let editor_settings = EditorSettings::get_global(cx);
3995 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
3996 // After the code completion is finished, users often want to know what signatures are needed.
3997 // so we should automatically call signature_help
3998 self.show_signature_help(&ShowSignatureHelp, cx);
3999 }
4000
4001 Some(cx.foreground_executor().spawn(async move {
4002 apply_edits.await?;
4003 Ok(())
4004 }))
4005 }
4006
4007 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4008 let mut context_menu = self.context_menu.borrow_mut();
4009 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4010 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4011 // Toggle if we're selecting the same one
4012 *context_menu = None;
4013 cx.notify();
4014 return;
4015 } else {
4016 // Otherwise, clear it and start a new one
4017 *context_menu = None;
4018 cx.notify();
4019 }
4020 }
4021 drop(context_menu);
4022 let snapshot = self.snapshot(cx);
4023 let deployed_from_indicator = action.deployed_from_indicator;
4024 let mut task = self.code_actions_task.take();
4025 let action = action.clone();
4026 cx.spawn(|editor, mut cx| async move {
4027 while let Some(prev_task) = task {
4028 prev_task.await.log_err();
4029 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4030 }
4031
4032 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4033 if editor.focus_handle.is_focused(cx) {
4034 let multibuffer_point = action
4035 .deployed_from_indicator
4036 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4037 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4038 let (buffer, buffer_row) = snapshot
4039 .buffer_snapshot
4040 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4041 .and_then(|(buffer_snapshot, range)| {
4042 editor
4043 .buffer
4044 .read(cx)
4045 .buffer(buffer_snapshot.remote_id())
4046 .map(|buffer| (buffer, range.start.row))
4047 })?;
4048 let (_, code_actions) = editor
4049 .available_code_actions
4050 .clone()
4051 .and_then(|(location, code_actions)| {
4052 let snapshot = location.buffer.read(cx).snapshot();
4053 let point_range = location.range.to_point(&snapshot);
4054 let point_range = point_range.start.row..=point_range.end.row;
4055 if point_range.contains(&buffer_row) {
4056 Some((location, code_actions))
4057 } else {
4058 None
4059 }
4060 })
4061 .unzip();
4062 let buffer_id = buffer.read(cx).remote_id();
4063 let tasks = editor
4064 .tasks
4065 .get(&(buffer_id, buffer_row))
4066 .map(|t| Arc::new(t.to_owned()));
4067 if tasks.is_none() && code_actions.is_none() {
4068 return None;
4069 }
4070
4071 editor.completion_tasks.clear();
4072 editor.discard_inline_completion(false, cx);
4073 let task_context =
4074 tasks
4075 .as_ref()
4076 .zip(editor.project.clone())
4077 .map(|(tasks, project)| {
4078 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4079 });
4080
4081 Some(cx.spawn(|editor, mut cx| async move {
4082 let task_context = match task_context {
4083 Some(task_context) => task_context.await,
4084 None => None,
4085 };
4086 let resolved_tasks =
4087 tasks.zip(task_context).map(|(tasks, task_context)| {
4088 Rc::new(ResolvedTasks {
4089 templates: tasks.resolve(&task_context).collect(),
4090 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4091 multibuffer_point.row,
4092 tasks.column,
4093 )),
4094 })
4095 });
4096 let spawn_straight_away = resolved_tasks
4097 .as_ref()
4098 .map_or(false, |tasks| tasks.templates.len() == 1)
4099 && code_actions
4100 .as_ref()
4101 .map_or(true, |actions| actions.is_empty());
4102 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4103 *editor.context_menu.borrow_mut() =
4104 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4105 buffer,
4106 actions: CodeActionContents {
4107 tasks: resolved_tasks,
4108 actions: code_actions,
4109 },
4110 selected_item: Default::default(),
4111 scroll_handle: UniformListScrollHandle::default(),
4112 deployed_from_indicator,
4113 }));
4114 if spawn_straight_away {
4115 if let Some(task) = editor.confirm_code_action(
4116 &ConfirmCodeAction { item_ix: Some(0) },
4117 cx,
4118 ) {
4119 cx.notify();
4120 return task;
4121 }
4122 }
4123 cx.notify();
4124 Task::ready(Ok(()))
4125 }) {
4126 task.await
4127 } else {
4128 Ok(())
4129 }
4130 }))
4131 } else {
4132 Some(Task::ready(Ok(())))
4133 }
4134 })?;
4135 if let Some(task) = spawned_test_task {
4136 task.await?;
4137 }
4138
4139 Ok::<_, anyhow::Error>(())
4140 })
4141 .detach_and_log_err(cx);
4142 }
4143
4144 pub fn confirm_code_action(
4145 &mut self,
4146 action: &ConfirmCodeAction,
4147 cx: &mut ViewContext<Self>,
4148 ) -> Option<Task<Result<()>>> {
4149 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4150 menu
4151 } else {
4152 return None;
4153 };
4154 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4155 let action = actions_menu.actions.get(action_ix)?;
4156 let title = action.label();
4157 let buffer = actions_menu.buffer;
4158 let workspace = self.workspace()?;
4159
4160 match action {
4161 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4162 workspace.update(cx, |workspace, cx| {
4163 workspace::tasks::schedule_resolved_task(
4164 workspace,
4165 task_source_kind,
4166 resolved_task,
4167 false,
4168 cx,
4169 );
4170
4171 Some(Task::ready(Ok(())))
4172 })
4173 }
4174 CodeActionsItem::CodeAction {
4175 excerpt_id,
4176 action,
4177 provider,
4178 } => {
4179 let apply_code_action =
4180 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4181 let workspace = workspace.downgrade();
4182 Some(cx.spawn(|editor, cx| async move {
4183 let project_transaction = apply_code_action.await?;
4184 Self::open_project_transaction(
4185 &editor,
4186 workspace,
4187 project_transaction,
4188 title,
4189 cx,
4190 )
4191 .await
4192 }))
4193 }
4194 }
4195 }
4196
4197 pub async fn open_project_transaction(
4198 this: &WeakView<Editor>,
4199 workspace: WeakView<Workspace>,
4200 transaction: ProjectTransaction,
4201 title: String,
4202 mut cx: AsyncWindowContext,
4203 ) -> Result<()> {
4204 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4205 cx.update(|cx| {
4206 entries.sort_unstable_by_key(|(buffer, _)| {
4207 buffer.read(cx).file().map(|f| f.path().clone())
4208 });
4209 })?;
4210
4211 // If the project transaction's edits are all contained within this editor, then
4212 // avoid opening a new editor to display them.
4213
4214 if let Some((buffer, transaction)) = entries.first() {
4215 if entries.len() == 1 {
4216 let excerpt = this.update(&mut cx, |editor, cx| {
4217 editor
4218 .buffer()
4219 .read(cx)
4220 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4221 })?;
4222 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4223 if excerpted_buffer == *buffer {
4224 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4225 let excerpt_range = excerpt_range.to_offset(buffer);
4226 buffer
4227 .edited_ranges_for_transaction::<usize>(transaction)
4228 .all(|range| {
4229 excerpt_range.start <= range.start
4230 && excerpt_range.end >= range.end
4231 })
4232 })?;
4233
4234 if all_edits_within_excerpt {
4235 return Ok(());
4236 }
4237 }
4238 }
4239 }
4240 } else {
4241 return Ok(());
4242 }
4243
4244 let mut ranges_to_highlight = Vec::new();
4245 let excerpt_buffer = cx.new_model(|cx| {
4246 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4247 for (buffer_handle, transaction) in &entries {
4248 let buffer = buffer_handle.read(cx);
4249 ranges_to_highlight.extend(
4250 multibuffer.push_excerpts_with_context_lines(
4251 buffer_handle.clone(),
4252 buffer
4253 .edited_ranges_for_transaction::<usize>(transaction)
4254 .collect(),
4255 DEFAULT_MULTIBUFFER_CONTEXT,
4256 cx,
4257 ),
4258 );
4259 }
4260 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4261 multibuffer
4262 })?;
4263
4264 workspace.update(&mut cx, |workspace, cx| {
4265 let project = workspace.project().clone();
4266 let editor =
4267 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4268 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4269 editor.update(cx, |editor, cx| {
4270 editor.highlight_background::<Self>(
4271 &ranges_to_highlight,
4272 |theme| theme.editor_highlighted_line_background,
4273 cx,
4274 );
4275 });
4276 })?;
4277
4278 Ok(())
4279 }
4280
4281 pub fn clear_code_action_providers(&mut self) {
4282 self.code_action_providers.clear();
4283 self.available_code_actions.take();
4284 }
4285
4286 pub fn push_code_action_provider(
4287 &mut self,
4288 provider: Rc<dyn CodeActionProvider>,
4289 cx: &mut ViewContext<Self>,
4290 ) {
4291 self.code_action_providers.push(provider);
4292 self.refresh_code_actions(cx);
4293 }
4294
4295 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4296 let buffer = self.buffer.read(cx);
4297 let newest_selection = self.selections.newest_anchor().clone();
4298 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4299 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4300 if start_buffer != end_buffer {
4301 return None;
4302 }
4303
4304 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4305 cx.background_executor()
4306 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4307 .await;
4308
4309 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4310 let providers = this.code_action_providers.clone();
4311 let tasks = this
4312 .code_action_providers
4313 .iter()
4314 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4315 .collect::<Vec<_>>();
4316 (providers, tasks)
4317 })?;
4318
4319 let mut actions = Vec::new();
4320 for (provider, provider_actions) in
4321 providers.into_iter().zip(future::join_all(tasks).await)
4322 {
4323 if let Some(provider_actions) = provider_actions.log_err() {
4324 actions.extend(provider_actions.into_iter().map(|action| {
4325 AvailableCodeAction {
4326 excerpt_id: newest_selection.start.excerpt_id,
4327 action,
4328 provider: provider.clone(),
4329 }
4330 }));
4331 }
4332 }
4333
4334 this.update(&mut cx, |this, cx| {
4335 this.available_code_actions = if actions.is_empty() {
4336 None
4337 } else {
4338 Some((
4339 Location {
4340 buffer: start_buffer,
4341 range: start..end,
4342 },
4343 actions.into(),
4344 ))
4345 };
4346 cx.notify();
4347 })
4348 }));
4349 None
4350 }
4351
4352 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4353 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4354 self.show_git_blame_inline = false;
4355
4356 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4357 cx.background_executor().timer(delay).await;
4358
4359 this.update(&mut cx, |this, cx| {
4360 this.show_git_blame_inline = true;
4361 cx.notify();
4362 })
4363 .log_err();
4364 }));
4365 }
4366 }
4367
4368 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4369 if self.pending_rename.is_some() {
4370 return None;
4371 }
4372
4373 let provider = self.semantics_provider.clone()?;
4374 let buffer = self.buffer.read(cx);
4375 let newest_selection = self.selections.newest_anchor().clone();
4376 let cursor_position = newest_selection.head();
4377 let (cursor_buffer, cursor_buffer_position) =
4378 buffer.text_anchor_for_position(cursor_position, cx)?;
4379 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4380 if cursor_buffer != tail_buffer {
4381 return None;
4382 }
4383 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4384 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4385 cx.background_executor()
4386 .timer(Duration::from_millis(debounce))
4387 .await;
4388
4389 let highlights = if let Some(highlights) = cx
4390 .update(|cx| {
4391 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4392 })
4393 .ok()
4394 .flatten()
4395 {
4396 highlights.await.log_err()
4397 } else {
4398 None
4399 };
4400
4401 if let Some(highlights) = highlights {
4402 this.update(&mut cx, |this, cx| {
4403 if this.pending_rename.is_some() {
4404 return;
4405 }
4406
4407 let buffer_id = cursor_position.buffer_id;
4408 let buffer = this.buffer.read(cx);
4409 if !buffer
4410 .text_anchor_for_position(cursor_position, cx)
4411 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4412 {
4413 return;
4414 }
4415
4416 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4417 let mut write_ranges = Vec::new();
4418 let mut read_ranges = Vec::new();
4419 for highlight in highlights {
4420 for (excerpt_id, excerpt_range) in
4421 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4422 {
4423 let start = highlight
4424 .range
4425 .start
4426 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4427 let end = highlight
4428 .range
4429 .end
4430 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4431 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4432 continue;
4433 }
4434
4435 let range = Anchor {
4436 buffer_id,
4437 excerpt_id,
4438 text_anchor: start,
4439 }..Anchor {
4440 buffer_id,
4441 excerpt_id,
4442 text_anchor: end,
4443 };
4444 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4445 write_ranges.push(range);
4446 } else {
4447 read_ranges.push(range);
4448 }
4449 }
4450 }
4451
4452 this.highlight_background::<DocumentHighlightRead>(
4453 &read_ranges,
4454 |theme| theme.editor_document_highlight_read_background,
4455 cx,
4456 );
4457 this.highlight_background::<DocumentHighlightWrite>(
4458 &write_ranges,
4459 |theme| theme.editor_document_highlight_write_background,
4460 cx,
4461 );
4462 cx.notify();
4463 })
4464 .log_err();
4465 }
4466 }));
4467 None
4468 }
4469
4470 pub fn refresh_inline_completion(
4471 &mut self,
4472 debounce: bool,
4473 user_requested: bool,
4474 cx: &mut ViewContext<Self>,
4475 ) -> Option<()> {
4476 let provider = self.inline_completion_provider()?;
4477 let cursor = self.selections.newest_anchor().head();
4478 let (buffer, cursor_buffer_position) =
4479 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4480
4481 if !user_requested
4482 && (!self.enable_inline_completions
4483 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4484 || !self.is_focused(cx))
4485 {
4486 self.discard_inline_completion(false, cx);
4487 return None;
4488 }
4489
4490 self.update_visible_inline_completion(cx);
4491 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4492 Some(())
4493 }
4494
4495 fn cycle_inline_completion(
4496 &mut self,
4497 direction: Direction,
4498 cx: &mut ViewContext<Self>,
4499 ) -> Option<()> {
4500 let provider = self.inline_completion_provider()?;
4501 let cursor = self.selections.newest_anchor().head();
4502 let (buffer, cursor_buffer_position) =
4503 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4504 if !self.enable_inline_completions
4505 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4506 {
4507 return None;
4508 }
4509
4510 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4511 self.update_visible_inline_completion(cx);
4512
4513 Some(())
4514 }
4515
4516 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4517 if !self.has_active_inline_completion() {
4518 self.refresh_inline_completion(false, true, cx);
4519 return;
4520 }
4521
4522 self.update_visible_inline_completion(cx);
4523 }
4524
4525 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4526 self.show_cursor_names(cx);
4527 }
4528
4529 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4530 self.show_cursor_names = true;
4531 cx.notify();
4532 cx.spawn(|this, mut cx| async move {
4533 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4534 this.update(&mut cx, |this, cx| {
4535 this.show_cursor_names = false;
4536 cx.notify()
4537 })
4538 .ok()
4539 })
4540 .detach();
4541 }
4542
4543 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4544 if self.has_active_inline_completion() {
4545 self.cycle_inline_completion(Direction::Next, cx);
4546 } else {
4547 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4548 if is_copilot_disabled {
4549 cx.propagate();
4550 }
4551 }
4552 }
4553
4554 pub fn previous_inline_completion(
4555 &mut self,
4556 _: &PreviousInlineCompletion,
4557 cx: &mut ViewContext<Self>,
4558 ) {
4559 if self.has_active_inline_completion() {
4560 self.cycle_inline_completion(Direction::Prev, cx);
4561 } else {
4562 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4563 if is_copilot_disabled {
4564 cx.propagate();
4565 }
4566 }
4567 }
4568
4569 pub fn accept_inline_completion(
4570 &mut self,
4571 _: &AcceptInlineCompletion,
4572 cx: &mut ViewContext<Self>,
4573 ) {
4574 if self.show_inline_completions_in_menu(cx) {
4575 self.hide_context_menu(cx);
4576 }
4577
4578 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4579 return;
4580 };
4581
4582 self.report_inline_completion_event(true, cx);
4583
4584 match &active_inline_completion.completion {
4585 InlineCompletion::Move(position) => {
4586 let position = *position;
4587 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4588 selections.select_anchor_ranges([position..position]);
4589 });
4590 }
4591 InlineCompletion::Edit(edits) => {
4592 if let Some(provider) = self.inline_completion_provider() {
4593 provider.accept(cx);
4594 }
4595
4596 let snapshot = self.buffer.read(cx).snapshot(cx);
4597 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4598
4599 self.buffer.update(cx, |buffer, cx| {
4600 buffer.edit(edits.iter().cloned(), None, cx)
4601 });
4602
4603 self.change_selections(None, cx, |s| {
4604 s.select_anchor_ranges([last_edit_end..last_edit_end])
4605 });
4606
4607 self.update_visible_inline_completion(cx);
4608 if self.active_inline_completion.is_none() {
4609 self.refresh_inline_completion(true, true, cx);
4610 }
4611
4612 cx.notify();
4613 }
4614 }
4615 }
4616
4617 pub fn accept_partial_inline_completion(
4618 &mut self,
4619 _: &AcceptPartialInlineCompletion,
4620 cx: &mut ViewContext<Self>,
4621 ) {
4622 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4623 return;
4624 };
4625 if self.selections.count() != 1 {
4626 return;
4627 }
4628
4629 self.report_inline_completion_event(true, cx);
4630
4631 match &active_inline_completion.completion {
4632 InlineCompletion::Move(position) => {
4633 let position = *position;
4634 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4635 selections.select_anchor_ranges([position..position]);
4636 });
4637 }
4638 InlineCompletion::Edit(edits) => {
4639 if edits.len() == 1 && edits[0].0.start == edits[0].0.end {
4640 let text = edits[0].1.as_str();
4641 let mut partial_completion = text
4642 .chars()
4643 .by_ref()
4644 .take_while(|c| c.is_alphabetic())
4645 .collect::<String>();
4646 if partial_completion.is_empty() {
4647 partial_completion = text
4648 .chars()
4649 .by_ref()
4650 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4651 .collect::<String>();
4652 }
4653
4654 cx.emit(EditorEvent::InputHandled {
4655 utf16_range_to_replace: None,
4656 text: partial_completion.clone().into(),
4657 });
4658
4659 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4660
4661 self.refresh_inline_completion(true, true, cx);
4662 cx.notify();
4663 }
4664 }
4665 }
4666 }
4667
4668 fn discard_inline_completion(
4669 &mut self,
4670 should_report_inline_completion_event: bool,
4671 cx: &mut ViewContext<Self>,
4672 ) -> bool {
4673 if should_report_inline_completion_event {
4674 self.report_inline_completion_event(false, cx);
4675 }
4676
4677 if let Some(provider) = self.inline_completion_provider() {
4678 provider.discard(cx);
4679 }
4680
4681 self.take_active_inline_completion(cx).is_some()
4682 }
4683
4684 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4685 let Some(provider) = self.inline_completion_provider() else {
4686 return;
4687 };
4688 let Some(project) = self.project.as_ref() else {
4689 return;
4690 };
4691 let Some((_, buffer, _)) = self
4692 .buffer
4693 .read(cx)
4694 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4695 else {
4696 return;
4697 };
4698
4699 let project = project.read(cx);
4700 let extension = buffer
4701 .read(cx)
4702 .file()
4703 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4704 project.client().telemetry().report_inline_completion_event(
4705 provider.name().into(),
4706 accepted,
4707 extension,
4708 );
4709 }
4710
4711 pub fn has_active_inline_completion(&self) -> bool {
4712 self.active_inline_completion.is_some()
4713 }
4714
4715 fn take_active_inline_completion(
4716 &mut self,
4717 cx: &mut ViewContext<Self>,
4718 ) -> Option<InlineCompletion> {
4719 let active_inline_completion = self.active_inline_completion.take()?;
4720 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4721 self.clear_highlights::<InlineCompletionHighlight>(cx);
4722 Some(active_inline_completion.completion)
4723 }
4724
4725 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4726 let selection = self.selections.newest_anchor();
4727 let cursor = selection.head();
4728 let multibuffer = self.buffer.read(cx).snapshot(cx);
4729 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4730 let excerpt_id = cursor.excerpt_id;
4731
4732 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4733 && (self.context_menu.borrow().is_some()
4734 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4735 if completions_menu_has_precedence
4736 || !offset_selection.is_empty()
4737 || self
4738 .active_inline_completion
4739 .as_ref()
4740 .map_or(false, |completion| {
4741 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4742 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4743 !invalidation_range.contains(&offset_selection.head())
4744 })
4745 {
4746 self.discard_inline_completion(false, cx);
4747 return None;
4748 }
4749
4750 self.take_active_inline_completion(cx);
4751 let provider = self.inline_completion_provider()?;
4752
4753 let (buffer, cursor_buffer_position) =
4754 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4755
4756 let completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4757 let edits = completion
4758 .edits
4759 .into_iter()
4760 .flat_map(|(range, new_text)| {
4761 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4762 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4763 Some((start..end, new_text))
4764 })
4765 .collect::<Vec<_>>();
4766 if edits.is_empty() {
4767 return None;
4768 }
4769
4770 let first_edit_start = edits.first().unwrap().0.start;
4771 let edit_start_row = first_edit_start
4772 .to_point(&multibuffer)
4773 .row
4774 .saturating_sub(2);
4775
4776 let last_edit_end = edits.last().unwrap().0.end;
4777 let edit_end_row = cmp::min(
4778 multibuffer.max_point().row,
4779 last_edit_end.to_point(&multibuffer).row + 2,
4780 );
4781
4782 let cursor_row = cursor.to_point(&multibuffer).row;
4783
4784 let mut inlay_ids = Vec::new();
4785 let invalidation_row_range;
4786 let completion;
4787 if cursor_row < edit_start_row {
4788 invalidation_row_range = cursor_row..edit_end_row;
4789 completion = InlineCompletion::Move(first_edit_start);
4790 } else if cursor_row > edit_end_row {
4791 invalidation_row_range = edit_start_row..cursor_row;
4792 completion = InlineCompletion::Move(first_edit_start);
4793 } else {
4794 if edits
4795 .iter()
4796 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4797 {
4798 let mut inlays = Vec::new();
4799 for (range, new_text) in &edits {
4800 let inlay = Inlay::inline_completion(
4801 post_inc(&mut self.next_inlay_id),
4802 range.start,
4803 new_text.as_str(),
4804 );
4805 inlay_ids.push(inlay.id);
4806 inlays.push(inlay);
4807 }
4808
4809 self.splice_inlays(vec![], inlays, cx);
4810 } else {
4811 let background_color = cx.theme().status().deleted_background;
4812 self.highlight_text::<InlineCompletionHighlight>(
4813 edits.iter().map(|(range, _)| range.clone()).collect(),
4814 HighlightStyle {
4815 background_color: Some(background_color),
4816 ..Default::default()
4817 },
4818 cx,
4819 );
4820 }
4821
4822 invalidation_row_range = edit_start_row..edit_end_row;
4823 completion = InlineCompletion::Edit(edits);
4824 };
4825
4826 let invalidation_range = multibuffer
4827 .anchor_before(Point::new(invalidation_row_range.start, 0))
4828 ..multibuffer.anchor_after(Point::new(
4829 invalidation_row_range.end,
4830 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4831 ));
4832
4833 self.active_inline_completion = Some(InlineCompletionState {
4834 inlay_ids,
4835 completion,
4836 invalidation_range,
4837 });
4838
4839 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4840 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4841 match self.context_menu.borrow_mut().as_mut() {
4842 Some(CodeContextMenu::Completions(menu)) => {
4843 menu.show_inline_completion_hint(hint);
4844 }
4845 _ => {}
4846 }
4847 }
4848 }
4849
4850 cx.notify();
4851
4852 Some(())
4853 }
4854
4855 fn inline_completion_menu_hint(
4856 &mut self,
4857 cx: &mut ViewContext<Self>,
4858 ) -> Option<InlineCompletionMenuHint> {
4859 if self.has_active_inline_completion() {
4860 let provider_name = self.inline_completion_provider()?.display_name();
4861 let editor_snapshot = self.snapshot(cx);
4862
4863 let text = match &self.active_inline_completion.as_ref()?.completion {
4864 InlineCompletion::Edit(edits) => {
4865 inline_completion_edit_text(&editor_snapshot, edits, true, cx)
4866 }
4867 InlineCompletion::Move(target) => {
4868 let target_point =
4869 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
4870 let target_line = target_point.row + 1;
4871 InlineCompletionText::Move(
4872 format!("Jump to edit in line {}", target_line).into(),
4873 )
4874 }
4875 };
4876
4877 Some(InlineCompletionMenuHint {
4878 provider_name,
4879 text,
4880 })
4881 } else {
4882 None
4883 }
4884 }
4885
4886 fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
4887 Some(self.inline_completion_provider.as_ref()?.provider.clone())
4888 }
4889
4890 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
4891 EditorSettings::get_global(cx).show_inline_completions_in_menu
4892 && self
4893 .inline_completion_provider()
4894 .map_or(false, |provider| provider.show_completions_in_menu())
4895 }
4896
4897 fn render_code_actions_indicator(
4898 &self,
4899 _style: &EditorStyle,
4900 row: DisplayRow,
4901 is_active: bool,
4902 cx: &mut ViewContext<Self>,
4903 ) -> Option<IconButton> {
4904 if self.available_code_actions.is_some() {
4905 Some(
4906 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
4907 .shape(ui::IconButtonShape::Square)
4908 .icon_size(IconSize::XSmall)
4909 .icon_color(Color::Muted)
4910 .toggle_state(is_active)
4911 .tooltip({
4912 let focus_handle = self.focus_handle.clone();
4913 move |cx| {
4914 Tooltip::for_action_in(
4915 "Toggle Code Actions",
4916 &ToggleCodeActions {
4917 deployed_from_indicator: None,
4918 },
4919 &focus_handle,
4920 cx,
4921 )
4922 }
4923 })
4924 .on_click(cx.listener(move |editor, _e, cx| {
4925 editor.focus(cx);
4926 editor.toggle_code_actions(
4927 &ToggleCodeActions {
4928 deployed_from_indicator: Some(row),
4929 },
4930 cx,
4931 );
4932 })),
4933 )
4934 } else {
4935 None
4936 }
4937 }
4938
4939 fn clear_tasks(&mut self) {
4940 self.tasks.clear()
4941 }
4942
4943 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
4944 if self.tasks.insert(key, value).is_some() {
4945 // This case should hopefully be rare, but just in case...
4946 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
4947 }
4948 }
4949
4950 fn build_tasks_context(
4951 project: &Model<Project>,
4952 buffer: &Model<Buffer>,
4953 buffer_row: u32,
4954 tasks: &Arc<RunnableTasks>,
4955 cx: &mut ViewContext<Self>,
4956 ) -> Task<Option<task::TaskContext>> {
4957 let position = Point::new(buffer_row, tasks.column);
4958 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
4959 let location = Location {
4960 buffer: buffer.clone(),
4961 range: range_start..range_start,
4962 };
4963 // Fill in the environmental variables from the tree-sitter captures
4964 let mut captured_task_variables = TaskVariables::default();
4965 for (capture_name, value) in tasks.extra_variables.clone() {
4966 captured_task_variables.insert(
4967 task::VariableName::Custom(capture_name.into()),
4968 value.clone(),
4969 );
4970 }
4971 project.update(cx, |project, cx| {
4972 project.task_store().update(cx, |task_store, cx| {
4973 task_store.task_context_for_location(captured_task_variables, location, cx)
4974 })
4975 })
4976 }
4977
4978 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
4979 let Some((workspace, _)) = self.workspace.clone() else {
4980 return;
4981 };
4982 let Some(project) = self.project.clone() else {
4983 return;
4984 };
4985
4986 // Try to find a closest, enclosing node using tree-sitter that has a
4987 // task
4988 let Some((buffer, buffer_row, tasks)) = self
4989 .find_enclosing_node_task(cx)
4990 // Or find the task that's closest in row-distance.
4991 .or_else(|| self.find_closest_task(cx))
4992 else {
4993 return;
4994 };
4995
4996 let reveal_strategy = action.reveal;
4997 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
4998 cx.spawn(|_, mut cx| async move {
4999 let context = task_context.await?;
5000 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5001
5002 let resolved = resolved_task.resolved.as_mut()?;
5003 resolved.reveal = reveal_strategy;
5004
5005 workspace
5006 .update(&mut cx, |workspace, cx| {
5007 workspace::tasks::schedule_resolved_task(
5008 workspace,
5009 task_source_kind,
5010 resolved_task,
5011 false,
5012 cx,
5013 );
5014 })
5015 .ok()
5016 })
5017 .detach();
5018 }
5019
5020 fn find_closest_task(
5021 &mut self,
5022 cx: &mut ViewContext<Self>,
5023 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5024 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5025
5026 let ((buffer_id, row), tasks) = self
5027 .tasks
5028 .iter()
5029 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5030
5031 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5032 let tasks = Arc::new(tasks.to_owned());
5033 Some((buffer, *row, tasks))
5034 }
5035
5036 fn find_enclosing_node_task(
5037 &mut self,
5038 cx: &mut ViewContext<Self>,
5039 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5040 let snapshot = self.buffer.read(cx).snapshot(cx);
5041 let offset = self.selections.newest::<usize>(cx).head();
5042 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5043 let buffer_id = excerpt.buffer().remote_id();
5044
5045 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5046 let mut cursor = layer.node().walk();
5047
5048 while cursor.goto_first_child_for_byte(offset).is_some() {
5049 if cursor.node().end_byte() == offset {
5050 cursor.goto_next_sibling();
5051 }
5052 }
5053
5054 // Ascend to the smallest ancestor that contains the range and has a task.
5055 loop {
5056 let node = cursor.node();
5057 let node_range = node.byte_range();
5058 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5059
5060 // Check if this node contains our offset
5061 if node_range.start <= offset && node_range.end >= offset {
5062 // If it contains offset, check for task
5063 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5064 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5065 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5066 }
5067 }
5068
5069 if !cursor.goto_parent() {
5070 break;
5071 }
5072 }
5073 None
5074 }
5075
5076 fn render_run_indicator(
5077 &self,
5078 _style: &EditorStyle,
5079 is_active: bool,
5080 row: DisplayRow,
5081 cx: &mut ViewContext<Self>,
5082 ) -> IconButton {
5083 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5084 .shape(ui::IconButtonShape::Square)
5085 .icon_size(IconSize::XSmall)
5086 .icon_color(Color::Muted)
5087 .toggle_state(is_active)
5088 .on_click(cx.listener(move |editor, _e, cx| {
5089 editor.focus(cx);
5090 editor.toggle_code_actions(
5091 &ToggleCodeActions {
5092 deployed_from_indicator: Some(row),
5093 },
5094 cx,
5095 );
5096 }))
5097 }
5098
5099 #[cfg(any(feature = "test-support", test))]
5100 pub fn context_menu_visible(&self) -> bool {
5101 self.context_menu
5102 .borrow()
5103 .as_ref()
5104 .map_or(false, |menu| menu.visible())
5105 }
5106
5107 #[cfg(feature = "test-support")]
5108 pub fn context_menu_contains_inline_completion(&self) -> bool {
5109 self.context_menu
5110 .borrow()
5111 .as_ref()
5112 .map_or(false, |menu| match menu {
5113 CodeContextMenu::Completions(menu) => menu.entries.first().map_or(false, |entry| {
5114 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5115 }),
5116 CodeContextMenu::CodeActions(_) => false,
5117 })
5118 }
5119
5120 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5121 self.context_menu
5122 .borrow()
5123 .as_ref()
5124 .map(|menu| menu.origin(cursor_position))
5125 }
5126
5127 fn render_context_menu(
5128 &self,
5129 style: &EditorStyle,
5130 max_height_in_lines: u32,
5131 cx: &mut ViewContext<Editor>,
5132 ) -> Option<AnyElement> {
5133 self.context_menu.borrow().as_ref().and_then(|menu| {
5134 if menu.visible() {
5135 Some(menu.render(style, max_height_in_lines, cx))
5136 } else {
5137 None
5138 }
5139 })
5140 }
5141
5142 fn render_context_menu_aside(
5143 &self,
5144 style: &EditorStyle,
5145 max_size: Size<Pixels>,
5146 cx: &mut ViewContext<Editor>,
5147 ) -> Option<AnyElement> {
5148 self.context_menu.borrow().as_ref().and_then(|menu| {
5149 if menu.visible() {
5150 menu.render_aside(
5151 style,
5152 max_size,
5153 self.workspace.as_ref().map(|(w, _)| w.clone()),
5154 cx,
5155 )
5156 } else {
5157 None
5158 }
5159 })
5160 }
5161
5162 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5163 cx.notify();
5164 self.completion_tasks.clear();
5165 let context_menu = self.context_menu.borrow_mut().take();
5166 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5167 self.update_visible_inline_completion(cx);
5168 }
5169 context_menu
5170 }
5171
5172 fn show_snippet_choices(
5173 &mut self,
5174 choices: &Vec<String>,
5175 selection: Range<Anchor>,
5176 cx: &mut ViewContext<Self>,
5177 ) {
5178 if selection.start.buffer_id.is_none() {
5179 return;
5180 }
5181 let buffer_id = selection.start.buffer_id.unwrap();
5182 let buffer = self.buffer().read(cx).buffer(buffer_id);
5183 let id = post_inc(&mut self.next_completion_id);
5184
5185 if let Some(buffer) = buffer {
5186 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5187 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5188 ));
5189 }
5190 }
5191
5192 pub fn insert_snippet(
5193 &mut self,
5194 insertion_ranges: &[Range<usize>],
5195 snippet: Snippet,
5196 cx: &mut ViewContext<Self>,
5197 ) -> Result<()> {
5198 struct Tabstop<T> {
5199 is_end_tabstop: bool,
5200 ranges: Vec<Range<T>>,
5201 choices: Option<Vec<String>>,
5202 }
5203
5204 let tabstops = self.buffer.update(cx, |buffer, cx| {
5205 let snippet_text: Arc<str> = snippet.text.clone().into();
5206 buffer.edit(
5207 insertion_ranges
5208 .iter()
5209 .cloned()
5210 .map(|range| (range, snippet_text.clone())),
5211 Some(AutoindentMode::EachLine),
5212 cx,
5213 );
5214
5215 let snapshot = &*buffer.read(cx);
5216 let snippet = &snippet;
5217 snippet
5218 .tabstops
5219 .iter()
5220 .map(|tabstop| {
5221 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5222 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5223 });
5224 let mut tabstop_ranges = tabstop
5225 .ranges
5226 .iter()
5227 .flat_map(|tabstop_range| {
5228 let mut delta = 0_isize;
5229 insertion_ranges.iter().map(move |insertion_range| {
5230 let insertion_start = insertion_range.start as isize + delta;
5231 delta +=
5232 snippet.text.len() as isize - insertion_range.len() as isize;
5233
5234 let start = ((insertion_start + tabstop_range.start) as usize)
5235 .min(snapshot.len());
5236 let end = ((insertion_start + tabstop_range.end) as usize)
5237 .min(snapshot.len());
5238 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5239 })
5240 })
5241 .collect::<Vec<_>>();
5242 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5243
5244 Tabstop {
5245 is_end_tabstop,
5246 ranges: tabstop_ranges,
5247 choices: tabstop.choices.clone(),
5248 }
5249 })
5250 .collect::<Vec<_>>()
5251 });
5252 if let Some(tabstop) = tabstops.first() {
5253 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5254 s.select_ranges(tabstop.ranges.iter().cloned());
5255 });
5256
5257 if let Some(choices) = &tabstop.choices {
5258 if let Some(selection) = tabstop.ranges.first() {
5259 self.show_snippet_choices(choices, selection.clone(), cx)
5260 }
5261 }
5262
5263 // If we're already at the last tabstop and it's at the end of the snippet,
5264 // we're done, we don't need to keep the state around.
5265 if !tabstop.is_end_tabstop {
5266 let choices = tabstops
5267 .iter()
5268 .map(|tabstop| tabstop.choices.clone())
5269 .collect();
5270
5271 let ranges = tabstops
5272 .into_iter()
5273 .map(|tabstop| tabstop.ranges)
5274 .collect::<Vec<_>>();
5275
5276 self.snippet_stack.push(SnippetState {
5277 active_index: 0,
5278 ranges,
5279 choices,
5280 });
5281 }
5282
5283 // Check whether the just-entered snippet ends with an auto-closable bracket.
5284 if self.autoclose_regions.is_empty() {
5285 let snapshot = self.buffer.read(cx).snapshot(cx);
5286 for selection in &mut self.selections.all::<Point>(cx) {
5287 let selection_head = selection.head();
5288 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5289 continue;
5290 };
5291
5292 let mut bracket_pair = None;
5293 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5294 let prev_chars = snapshot
5295 .reversed_chars_at(selection_head)
5296 .collect::<String>();
5297 for (pair, enabled) in scope.brackets() {
5298 if enabled
5299 && pair.close
5300 && prev_chars.starts_with(pair.start.as_str())
5301 && next_chars.starts_with(pair.end.as_str())
5302 {
5303 bracket_pair = Some(pair.clone());
5304 break;
5305 }
5306 }
5307 if let Some(pair) = bracket_pair {
5308 let start = snapshot.anchor_after(selection_head);
5309 let end = snapshot.anchor_after(selection_head);
5310 self.autoclose_regions.push(AutocloseRegion {
5311 selection_id: selection.id,
5312 range: start..end,
5313 pair,
5314 });
5315 }
5316 }
5317 }
5318 }
5319 Ok(())
5320 }
5321
5322 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5323 self.move_to_snippet_tabstop(Bias::Right, cx)
5324 }
5325
5326 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5327 self.move_to_snippet_tabstop(Bias::Left, cx)
5328 }
5329
5330 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5331 if let Some(mut snippet) = self.snippet_stack.pop() {
5332 match bias {
5333 Bias::Left => {
5334 if snippet.active_index > 0 {
5335 snippet.active_index -= 1;
5336 } else {
5337 self.snippet_stack.push(snippet);
5338 return false;
5339 }
5340 }
5341 Bias::Right => {
5342 if snippet.active_index + 1 < snippet.ranges.len() {
5343 snippet.active_index += 1;
5344 } else {
5345 self.snippet_stack.push(snippet);
5346 return false;
5347 }
5348 }
5349 }
5350 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5351 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5352 s.select_anchor_ranges(current_ranges.iter().cloned())
5353 });
5354
5355 if let Some(choices) = &snippet.choices[snippet.active_index] {
5356 if let Some(selection) = current_ranges.first() {
5357 self.show_snippet_choices(&choices, selection.clone(), cx);
5358 }
5359 }
5360
5361 // If snippet state is not at the last tabstop, push it back on the stack
5362 if snippet.active_index + 1 < snippet.ranges.len() {
5363 self.snippet_stack.push(snippet);
5364 }
5365 return true;
5366 }
5367 }
5368
5369 false
5370 }
5371
5372 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5373 self.transact(cx, |this, cx| {
5374 this.select_all(&SelectAll, cx);
5375 this.insert("", cx);
5376 });
5377 }
5378
5379 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5380 self.transact(cx, |this, cx| {
5381 this.select_autoclose_pair(cx);
5382 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5383 if !this.linked_edit_ranges.is_empty() {
5384 let selections = this.selections.all::<MultiBufferPoint>(cx);
5385 let snapshot = this.buffer.read(cx).snapshot(cx);
5386
5387 for selection in selections.iter() {
5388 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5389 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5390 if selection_start.buffer_id != selection_end.buffer_id {
5391 continue;
5392 }
5393 if let Some(ranges) =
5394 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5395 {
5396 for (buffer, entries) in ranges {
5397 linked_ranges.entry(buffer).or_default().extend(entries);
5398 }
5399 }
5400 }
5401 }
5402
5403 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5404 if !this.selections.line_mode {
5405 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5406 for selection in &mut selections {
5407 if selection.is_empty() {
5408 let old_head = selection.head();
5409 let mut new_head =
5410 movement::left(&display_map, old_head.to_display_point(&display_map))
5411 .to_point(&display_map);
5412 if let Some((buffer, line_buffer_range)) = display_map
5413 .buffer_snapshot
5414 .buffer_line_for_row(MultiBufferRow(old_head.row))
5415 {
5416 let indent_size =
5417 buffer.indent_size_for_line(line_buffer_range.start.row);
5418 let indent_len = match indent_size.kind {
5419 IndentKind::Space => {
5420 buffer.settings_at(line_buffer_range.start, cx).tab_size
5421 }
5422 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5423 };
5424 if old_head.column <= indent_size.len && old_head.column > 0 {
5425 let indent_len = indent_len.get();
5426 new_head = cmp::min(
5427 new_head,
5428 MultiBufferPoint::new(
5429 old_head.row,
5430 ((old_head.column - 1) / indent_len) * indent_len,
5431 ),
5432 );
5433 }
5434 }
5435
5436 selection.set_head(new_head, SelectionGoal::None);
5437 }
5438 }
5439 }
5440
5441 this.signature_help_state.set_backspace_pressed(true);
5442 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5443 this.insert("", cx);
5444 let empty_str: Arc<str> = Arc::from("");
5445 for (buffer, edits) in linked_ranges {
5446 let snapshot = buffer.read(cx).snapshot();
5447 use text::ToPoint as TP;
5448
5449 let edits = edits
5450 .into_iter()
5451 .map(|range| {
5452 let end_point = TP::to_point(&range.end, &snapshot);
5453 let mut start_point = TP::to_point(&range.start, &snapshot);
5454
5455 if end_point == start_point {
5456 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5457 .saturating_sub(1);
5458 start_point =
5459 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5460 };
5461
5462 (start_point..end_point, empty_str.clone())
5463 })
5464 .sorted_by_key(|(range, _)| range.start)
5465 .collect::<Vec<_>>();
5466 buffer.update(cx, |this, cx| {
5467 this.edit(edits, None, cx);
5468 })
5469 }
5470 this.refresh_inline_completion(true, false, cx);
5471 linked_editing_ranges::refresh_linked_ranges(this, cx);
5472 });
5473 }
5474
5475 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5476 self.transact(cx, |this, cx| {
5477 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5478 let line_mode = s.line_mode;
5479 s.move_with(|map, selection| {
5480 if selection.is_empty() && !line_mode {
5481 let cursor = movement::right(map, selection.head());
5482 selection.end = cursor;
5483 selection.reversed = true;
5484 selection.goal = SelectionGoal::None;
5485 }
5486 })
5487 });
5488 this.insert("", cx);
5489 this.refresh_inline_completion(true, false, cx);
5490 });
5491 }
5492
5493 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5494 if self.move_to_prev_snippet_tabstop(cx) {
5495 return;
5496 }
5497
5498 self.outdent(&Outdent, cx);
5499 }
5500
5501 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5502 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5503 return;
5504 }
5505
5506 let mut selections = self.selections.all_adjusted(cx);
5507 let buffer = self.buffer.read(cx);
5508 let snapshot = buffer.snapshot(cx);
5509 let rows_iter = selections.iter().map(|s| s.head().row);
5510 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5511
5512 let mut edits = Vec::new();
5513 let mut prev_edited_row = 0;
5514 let mut row_delta = 0;
5515 for selection in &mut selections {
5516 if selection.start.row != prev_edited_row {
5517 row_delta = 0;
5518 }
5519 prev_edited_row = selection.end.row;
5520
5521 // If the selection is non-empty, then increase the indentation of the selected lines.
5522 if !selection.is_empty() {
5523 row_delta =
5524 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5525 continue;
5526 }
5527
5528 // If the selection is empty and the cursor is in the leading whitespace before the
5529 // suggested indentation, then auto-indent the line.
5530 let cursor = selection.head();
5531 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5532 if let Some(suggested_indent) =
5533 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5534 {
5535 if cursor.column < suggested_indent.len
5536 && cursor.column <= current_indent.len
5537 && current_indent.len <= suggested_indent.len
5538 {
5539 selection.start = Point::new(cursor.row, suggested_indent.len);
5540 selection.end = selection.start;
5541 if row_delta == 0 {
5542 edits.extend(Buffer::edit_for_indent_size_adjustment(
5543 cursor.row,
5544 current_indent,
5545 suggested_indent,
5546 ));
5547 row_delta = suggested_indent.len - current_indent.len;
5548 }
5549 continue;
5550 }
5551 }
5552
5553 // Otherwise, insert a hard or soft tab.
5554 let settings = buffer.settings_at(cursor, cx);
5555 let tab_size = if settings.hard_tabs {
5556 IndentSize::tab()
5557 } else {
5558 let tab_size = settings.tab_size.get();
5559 let char_column = snapshot
5560 .text_for_range(Point::new(cursor.row, 0)..cursor)
5561 .flat_map(str::chars)
5562 .count()
5563 + row_delta as usize;
5564 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5565 IndentSize::spaces(chars_to_next_tab_stop)
5566 };
5567 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5568 selection.end = selection.start;
5569 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5570 row_delta += tab_size.len;
5571 }
5572
5573 self.transact(cx, |this, cx| {
5574 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5575 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5576 this.refresh_inline_completion(true, false, cx);
5577 });
5578 }
5579
5580 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5581 if self.read_only(cx) {
5582 return;
5583 }
5584 let mut selections = self.selections.all::<Point>(cx);
5585 let mut prev_edited_row = 0;
5586 let mut row_delta = 0;
5587 let mut edits = Vec::new();
5588 let buffer = self.buffer.read(cx);
5589 let snapshot = buffer.snapshot(cx);
5590 for selection in &mut selections {
5591 if selection.start.row != prev_edited_row {
5592 row_delta = 0;
5593 }
5594 prev_edited_row = selection.end.row;
5595
5596 row_delta =
5597 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5598 }
5599
5600 self.transact(cx, |this, cx| {
5601 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5602 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5603 });
5604 }
5605
5606 fn indent_selection(
5607 buffer: &MultiBuffer,
5608 snapshot: &MultiBufferSnapshot,
5609 selection: &mut Selection<Point>,
5610 edits: &mut Vec<(Range<Point>, String)>,
5611 delta_for_start_row: u32,
5612 cx: &AppContext,
5613 ) -> u32 {
5614 let settings = buffer.settings_at(selection.start, cx);
5615 let tab_size = settings.tab_size.get();
5616 let indent_kind = if settings.hard_tabs {
5617 IndentKind::Tab
5618 } else {
5619 IndentKind::Space
5620 };
5621 let mut start_row = selection.start.row;
5622 let mut end_row = selection.end.row + 1;
5623
5624 // If a selection ends at the beginning of a line, don't indent
5625 // that last line.
5626 if selection.end.column == 0 && selection.end.row > selection.start.row {
5627 end_row -= 1;
5628 }
5629
5630 // Avoid re-indenting a row that has already been indented by a
5631 // previous selection, but still update this selection's column
5632 // to reflect that indentation.
5633 if delta_for_start_row > 0 {
5634 start_row += 1;
5635 selection.start.column += delta_for_start_row;
5636 if selection.end.row == selection.start.row {
5637 selection.end.column += delta_for_start_row;
5638 }
5639 }
5640
5641 let mut delta_for_end_row = 0;
5642 let has_multiple_rows = start_row + 1 != end_row;
5643 for row in start_row..end_row {
5644 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5645 let indent_delta = match (current_indent.kind, indent_kind) {
5646 (IndentKind::Space, IndentKind::Space) => {
5647 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5648 IndentSize::spaces(columns_to_next_tab_stop)
5649 }
5650 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5651 (_, IndentKind::Tab) => IndentSize::tab(),
5652 };
5653
5654 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5655 0
5656 } else {
5657 selection.start.column
5658 };
5659 let row_start = Point::new(row, start);
5660 edits.push((
5661 row_start..row_start,
5662 indent_delta.chars().collect::<String>(),
5663 ));
5664
5665 // Update this selection's endpoints to reflect the indentation.
5666 if row == selection.start.row {
5667 selection.start.column += indent_delta.len;
5668 }
5669 if row == selection.end.row {
5670 selection.end.column += indent_delta.len;
5671 delta_for_end_row = indent_delta.len;
5672 }
5673 }
5674
5675 if selection.start.row == selection.end.row {
5676 delta_for_start_row + delta_for_end_row
5677 } else {
5678 delta_for_end_row
5679 }
5680 }
5681
5682 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5683 if self.read_only(cx) {
5684 return;
5685 }
5686 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5687 let selections = self.selections.all::<Point>(cx);
5688 let mut deletion_ranges = Vec::new();
5689 let mut last_outdent = None;
5690 {
5691 let buffer = self.buffer.read(cx);
5692 let snapshot = buffer.snapshot(cx);
5693 for selection in &selections {
5694 let settings = buffer.settings_at(selection.start, cx);
5695 let tab_size = settings.tab_size.get();
5696 let mut rows = selection.spanned_rows(false, &display_map);
5697
5698 // Avoid re-outdenting a row that has already been outdented by a
5699 // previous selection.
5700 if let Some(last_row) = last_outdent {
5701 if last_row == rows.start {
5702 rows.start = rows.start.next_row();
5703 }
5704 }
5705 let has_multiple_rows = rows.len() > 1;
5706 for row in rows.iter_rows() {
5707 let indent_size = snapshot.indent_size_for_line(row);
5708 if indent_size.len > 0 {
5709 let deletion_len = match indent_size.kind {
5710 IndentKind::Space => {
5711 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5712 if columns_to_prev_tab_stop == 0 {
5713 tab_size
5714 } else {
5715 columns_to_prev_tab_stop
5716 }
5717 }
5718 IndentKind::Tab => 1,
5719 };
5720 let start = if has_multiple_rows
5721 || deletion_len > selection.start.column
5722 || indent_size.len < selection.start.column
5723 {
5724 0
5725 } else {
5726 selection.start.column - deletion_len
5727 };
5728 deletion_ranges.push(
5729 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5730 );
5731 last_outdent = Some(row);
5732 }
5733 }
5734 }
5735 }
5736
5737 self.transact(cx, |this, cx| {
5738 this.buffer.update(cx, |buffer, cx| {
5739 let empty_str: Arc<str> = Arc::default();
5740 buffer.edit(
5741 deletion_ranges
5742 .into_iter()
5743 .map(|range| (range, empty_str.clone())),
5744 None,
5745 cx,
5746 );
5747 });
5748 let selections = this.selections.all::<usize>(cx);
5749 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5750 });
5751 }
5752
5753 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5754 if self.read_only(cx) {
5755 return;
5756 }
5757 let selections = self
5758 .selections
5759 .all::<usize>(cx)
5760 .into_iter()
5761 .map(|s| s.range());
5762
5763 self.transact(cx, |this, cx| {
5764 this.buffer.update(cx, |buffer, cx| {
5765 buffer.autoindent_ranges(selections, cx);
5766 });
5767 let selections = this.selections.all::<usize>(cx);
5768 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5769 });
5770 }
5771
5772 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5773 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5774 let selections = self.selections.all::<Point>(cx);
5775
5776 let mut new_cursors = Vec::new();
5777 let mut edit_ranges = Vec::new();
5778 let mut selections = selections.iter().peekable();
5779 while let Some(selection) = selections.next() {
5780 let mut rows = selection.spanned_rows(false, &display_map);
5781 let goal_display_column = selection.head().to_display_point(&display_map).column();
5782
5783 // Accumulate contiguous regions of rows that we want to delete.
5784 while let Some(next_selection) = selections.peek() {
5785 let next_rows = next_selection.spanned_rows(false, &display_map);
5786 if next_rows.start <= rows.end {
5787 rows.end = next_rows.end;
5788 selections.next().unwrap();
5789 } else {
5790 break;
5791 }
5792 }
5793
5794 let buffer = &display_map.buffer_snapshot;
5795 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5796 let edit_end;
5797 let cursor_buffer_row;
5798 if buffer.max_point().row >= rows.end.0 {
5799 // If there's a line after the range, delete the \n from the end of the row range
5800 // and position the cursor on the next line.
5801 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5802 cursor_buffer_row = rows.end;
5803 } else {
5804 // If there isn't a line after the range, delete the \n from the line before the
5805 // start of the row range and position the cursor there.
5806 edit_start = edit_start.saturating_sub(1);
5807 edit_end = buffer.len();
5808 cursor_buffer_row = rows.start.previous_row();
5809 }
5810
5811 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5812 *cursor.column_mut() =
5813 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5814
5815 new_cursors.push((
5816 selection.id,
5817 buffer.anchor_after(cursor.to_point(&display_map)),
5818 ));
5819 edit_ranges.push(edit_start..edit_end);
5820 }
5821
5822 self.transact(cx, |this, cx| {
5823 let buffer = this.buffer.update(cx, |buffer, cx| {
5824 let empty_str: Arc<str> = Arc::default();
5825 buffer.edit(
5826 edit_ranges
5827 .into_iter()
5828 .map(|range| (range, empty_str.clone())),
5829 None,
5830 cx,
5831 );
5832 buffer.snapshot(cx)
5833 });
5834 let new_selections = new_cursors
5835 .into_iter()
5836 .map(|(id, cursor)| {
5837 let cursor = cursor.to_point(&buffer);
5838 Selection {
5839 id,
5840 start: cursor,
5841 end: cursor,
5842 reversed: false,
5843 goal: SelectionGoal::None,
5844 }
5845 })
5846 .collect();
5847
5848 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5849 s.select(new_selections);
5850 });
5851 });
5852 }
5853
5854 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5855 if self.read_only(cx) {
5856 return;
5857 }
5858 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5859 for selection in self.selections.all::<Point>(cx) {
5860 let start = MultiBufferRow(selection.start.row);
5861 // Treat single line selections as if they include the next line. Otherwise this action
5862 // would do nothing for single line selections individual cursors.
5863 let end = if selection.start.row == selection.end.row {
5864 MultiBufferRow(selection.start.row + 1)
5865 } else {
5866 MultiBufferRow(selection.end.row)
5867 };
5868
5869 if let Some(last_row_range) = row_ranges.last_mut() {
5870 if start <= last_row_range.end {
5871 last_row_range.end = end;
5872 continue;
5873 }
5874 }
5875 row_ranges.push(start..end);
5876 }
5877
5878 let snapshot = self.buffer.read(cx).snapshot(cx);
5879 let mut cursor_positions = Vec::new();
5880 for row_range in &row_ranges {
5881 let anchor = snapshot.anchor_before(Point::new(
5882 row_range.end.previous_row().0,
5883 snapshot.line_len(row_range.end.previous_row()),
5884 ));
5885 cursor_positions.push(anchor..anchor);
5886 }
5887
5888 self.transact(cx, |this, cx| {
5889 for row_range in row_ranges.into_iter().rev() {
5890 for row in row_range.iter_rows().rev() {
5891 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5892 let next_line_row = row.next_row();
5893 let indent = snapshot.indent_size_for_line(next_line_row);
5894 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5895
5896 let replace = if snapshot.line_len(next_line_row) > indent.len {
5897 " "
5898 } else {
5899 ""
5900 };
5901
5902 this.buffer.update(cx, |buffer, cx| {
5903 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5904 });
5905 }
5906 }
5907
5908 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5909 s.select_anchor_ranges(cursor_positions)
5910 });
5911 });
5912 }
5913
5914 pub fn sort_lines_case_sensitive(
5915 &mut self,
5916 _: &SortLinesCaseSensitive,
5917 cx: &mut ViewContext<Self>,
5918 ) {
5919 self.manipulate_lines(cx, |lines| lines.sort())
5920 }
5921
5922 pub fn sort_lines_case_insensitive(
5923 &mut self,
5924 _: &SortLinesCaseInsensitive,
5925 cx: &mut ViewContext<Self>,
5926 ) {
5927 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5928 }
5929
5930 pub fn unique_lines_case_insensitive(
5931 &mut self,
5932 _: &UniqueLinesCaseInsensitive,
5933 cx: &mut ViewContext<Self>,
5934 ) {
5935 self.manipulate_lines(cx, |lines| {
5936 let mut seen = HashSet::default();
5937 lines.retain(|line| seen.insert(line.to_lowercase()));
5938 })
5939 }
5940
5941 pub fn unique_lines_case_sensitive(
5942 &mut self,
5943 _: &UniqueLinesCaseSensitive,
5944 cx: &mut ViewContext<Self>,
5945 ) {
5946 self.manipulate_lines(cx, |lines| {
5947 let mut seen = HashSet::default();
5948 lines.retain(|line| seen.insert(*line));
5949 })
5950 }
5951
5952 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5953 let mut revert_changes = HashMap::default();
5954 let snapshot = self.snapshot(cx);
5955 for hunk in hunks_for_ranges(
5956 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5957 &snapshot,
5958 ) {
5959 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5960 }
5961 if !revert_changes.is_empty() {
5962 self.transact(cx, |editor, cx| {
5963 editor.revert(revert_changes, cx);
5964 });
5965 }
5966 }
5967
5968 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5969 let Some(project) = self.project.clone() else {
5970 return;
5971 };
5972 self.reload(project, cx).detach_and_notify_err(cx);
5973 }
5974
5975 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5976 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5977 if !revert_changes.is_empty() {
5978 self.transact(cx, |editor, cx| {
5979 editor.revert(revert_changes, cx);
5980 });
5981 }
5982 }
5983
5984 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5985 let snapshot = self.buffer.read(cx).read(cx);
5986 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5987 drop(snapshot);
5988 let mut revert_changes = HashMap::default();
5989 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5990 if !revert_changes.is_empty() {
5991 self.revert(revert_changes, cx)
5992 }
5993 }
5994 }
5995
5996 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
5997 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
5998 let project_path = buffer.read(cx).project_path(cx)?;
5999 let project = self.project.as_ref()?.read(cx);
6000 let entry = project.entry_for_path(&project_path, cx)?;
6001 let parent = match &entry.canonical_path {
6002 Some(canonical_path) => canonical_path.to_path_buf(),
6003 None => project.absolute_path(&project_path, cx)?,
6004 }
6005 .parent()?
6006 .to_path_buf();
6007 Some(parent)
6008 }) {
6009 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6010 }
6011 }
6012
6013 fn gather_revert_changes(
6014 &mut self,
6015 selections: &[Selection<Point>],
6016 cx: &mut ViewContext<Editor>,
6017 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6018 let mut revert_changes = HashMap::default();
6019 let snapshot = self.snapshot(cx);
6020 for hunk in hunks_for_selections(&snapshot, selections) {
6021 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6022 }
6023 revert_changes
6024 }
6025
6026 pub fn prepare_revert_change(
6027 &mut self,
6028 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6029 hunk: &MultiBufferDiffHunk,
6030 cx: &AppContext,
6031 ) -> Option<()> {
6032 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6033 let buffer = buffer.read(cx);
6034 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6035 let original_text = change_set
6036 .read(cx)
6037 .base_text
6038 .as_ref()?
6039 .read(cx)
6040 .as_rope()
6041 .slice(hunk.diff_base_byte_range.clone());
6042 let buffer_snapshot = buffer.snapshot();
6043 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6044 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6045 probe
6046 .0
6047 .start
6048 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6049 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6050 }) {
6051 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6052 Some(())
6053 } else {
6054 None
6055 }
6056 }
6057
6058 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6059 self.manipulate_lines(cx, |lines| lines.reverse())
6060 }
6061
6062 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6063 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6064 }
6065
6066 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6067 where
6068 Fn: FnMut(&mut Vec<&str>),
6069 {
6070 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6071 let buffer = self.buffer.read(cx).snapshot(cx);
6072
6073 let mut edits = Vec::new();
6074
6075 let selections = self.selections.all::<Point>(cx);
6076 let mut selections = selections.iter().peekable();
6077 let mut contiguous_row_selections = Vec::new();
6078 let mut new_selections = Vec::new();
6079 let mut added_lines = 0;
6080 let mut removed_lines = 0;
6081
6082 while let Some(selection) = selections.next() {
6083 let (start_row, end_row) = consume_contiguous_rows(
6084 &mut contiguous_row_selections,
6085 selection,
6086 &display_map,
6087 &mut selections,
6088 );
6089
6090 let start_point = Point::new(start_row.0, 0);
6091 let end_point = Point::new(
6092 end_row.previous_row().0,
6093 buffer.line_len(end_row.previous_row()),
6094 );
6095 let text = buffer
6096 .text_for_range(start_point..end_point)
6097 .collect::<String>();
6098
6099 let mut lines = text.split('\n').collect_vec();
6100
6101 let lines_before = lines.len();
6102 callback(&mut lines);
6103 let lines_after = lines.len();
6104
6105 edits.push((start_point..end_point, lines.join("\n")));
6106
6107 // Selections must change based on added and removed line count
6108 let start_row =
6109 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6110 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6111 new_selections.push(Selection {
6112 id: selection.id,
6113 start: start_row,
6114 end: end_row,
6115 goal: SelectionGoal::None,
6116 reversed: selection.reversed,
6117 });
6118
6119 if lines_after > lines_before {
6120 added_lines += lines_after - lines_before;
6121 } else if lines_before > lines_after {
6122 removed_lines += lines_before - lines_after;
6123 }
6124 }
6125
6126 self.transact(cx, |this, cx| {
6127 let buffer = this.buffer.update(cx, |buffer, cx| {
6128 buffer.edit(edits, None, cx);
6129 buffer.snapshot(cx)
6130 });
6131
6132 // Recalculate offsets on newly edited buffer
6133 let new_selections = new_selections
6134 .iter()
6135 .map(|s| {
6136 let start_point = Point::new(s.start.0, 0);
6137 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6138 Selection {
6139 id: s.id,
6140 start: buffer.point_to_offset(start_point),
6141 end: buffer.point_to_offset(end_point),
6142 goal: s.goal,
6143 reversed: s.reversed,
6144 }
6145 })
6146 .collect();
6147
6148 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6149 s.select(new_selections);
6150 });
6151
6152 this.request_autoscroll(Autoscroll::fit(), cx);
6153 });
6154 }
6155
6156 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6157 self.manipulate_text(cx, |text| text.to_uppercase())
6158 }
6159
6160 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6161 self.manipulate_text(cx, |text| text.to_lowercase())
6162 }
6163
6164 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6165 self.manipulate_text(cx, |text| {
6166 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6167 // https://github.com/rutrum/convert-case/issues/16
6168 text.split('\n')
6169 .map(|line| line.to_case(Case::Title))
6170 .join("\n")
6171 })
6172 }
6173
6174 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6175 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6176 }
6177
6178 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6179 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6180 }
6181
6182 pub fn convert_to_upper_camel_case(
6183 &mut self,
6184 _: &ConvertToUpperCamelCase,
6185 cx: &mut ViewContext<Self>,
6186 ) {
6187 self.manipulate_text(cx, |text| {
6188 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6189 // https://github.com/rutrum/convert-case/issues/16
6190 text.split('\n')
6191 .map(|line| line.to_case(Case::UpperCamel))
6192 .join("\n")
6193 })
6194 }
6195
6196 pub fn convert_to_lower_camel_case(
6197 &mut self,
6198 _: &ConvertToLowerCamelCase,
6199 cx: &mut ViewContext<Self>,
6200 ) {
6201 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6202 }
6203
6204 pub fn convert_to_opposite_case(
6205 &mut self,
6206 _: &ConvertToOppositeCase,
6207 cx: &mut ViewContext<Self>,
6208 ) {
6209 self.manipulate_text(cx, |text| {
6210 text.chars()
6211 .fold(String::with_capacity(text.len()), |mut t, c| {
6212 if c.is_uppercase() {
6213 t.extend(c.to_lowercase());
6214 } else {
6215 t.extend(c.to_uppercase());
6216 }
6217 t
6218 })
6219 })
6220 }
6221
6222 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6223 where
6224 Fn: FnMut(&str) -> String,
6225 {
6226 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6227 let buffer = self.buffer.read(cx).snapshot(cx);
6228
6229 let mut new_selections = Vec::new();
6230 let mut edits = Vec::new();
6231 let mut selection_adjustment = 0i32;
6232
6233 for selection in self.selections.all::<usize>(cx) {
6234 let selection_is_empty = selection.is_empty();
6235
6236 let (start, end) = if selection_is_empty {
6237 let word_range = movement::surrounding_word(
6238 &display_map,
6239 selection.start.to_display_point(&display_map),
6240 );
6241 let start = word_range.start.to_offset(&display_map, Bias::Left);
6242 let end = word_range.end.to_offset(&display_map, Bias::Left);
6243 (start, end)
6244 } else {
6245 (selection.start, selection.end)
6246 };
6247
6248 let text = buffer.text_for_range(start..end).collect::<String>();
6249 let old_length = text.len() as i32;
6250 let text = callback(&text);
6251
6252 new_selections.push(Selection {
6253 start: (start as i32 - selection_adjustment) as usize,
6254 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6255 goal: SelectionGoal::None,
6256 ..selection
6257 });
6258
6259 selection_adjustment += old_length - text.len() as i32;
6260
6261 edits.push((start..end, text));
6262 }
6263
6264 self.transact(cx, |this, cx| {
6265 this.buffer.update(cx, |buffer, cx| {
6266 buffer.edit(edits, None, cx);
6267 });
6268
6269 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6270 s.select(new_selections);
6271 });
6272
6273 this.request_autoscroll(Autoscroll::fit(), cx);
6274 });
6275 }
6276
6277 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6278 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6279 let buffer = &display_map.buffer_snapshot;
6280 let selections = self.selections.all::<Point>(cx);
6281
6282 let mut edits = Vec::new();
6283 let mut selections_iter = selections.iter().peekable();
6284 while let Some(selection) = selections_iter.next() {
6285 let mut rows = selection.spanned_rows(false, &display_map);
6286 // duplicate line-wise
6287 if whole_lines || selection.start == selection.end {
6288 // Avoid duplicating the same lines twice.
6289 while let Some(next_selection) = selections_iter.peek() {
6290 let next_rows = next_selection.spanned_rows(false, &display_map);
6291 if next_rows.start < rows.end {
6292 rows.end = next_rows.end;
6293 selections_iter.next().unwrap();
6294 } else {
6295 break;
6296 }
6297 }
6298
6299 // Copy the text from the selected row region and splice it either at the start
6300 // or end of the region.
6301 let start = Point::new(rows.start.0, 0);
6302 let end = Point::new(
6303 rows.end.previous_row().0,
6304 buffer.line_len(rows.end.previous_row()),
6305 );
6306 let text = buffer
6307 .text_for_range(start..end)
6308 .chain(Some("\n"))
6309 .collect::<String>();
6310 let insert_location = if upwards {
6311 Point::new(rows.end.0, 0)
6312 } else {
6313 start
6314 };
6315 edits.push((insert_location..insert_location, text));
6316 } else {
6317 // duplicate character-wise
6318 let start = selection.start;
6319 let end = selection.end;
6320 let text = buffer.text_for_range(start..end).collect::<String>();
6321 edits.push((selection.end..selection.end, text));
6322 }
6323 }
6324
6325 self.transact(cx, |this, cx| {
6326 this.buffer.update(cx, |buffer, cx| {
6327 buffer.edit(edits, None, cx);
6328 });
6329
6330 this.request_autoscroll(Autoscroll::fit(), cx);
6331 });
6332 }
6333
6334 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6335 self.duplicate(true, true, cx);
6336 }
6337
6338 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6339 self.duplicate(false, true, cx);
6340 }
6341
6342 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6343 self.duplicate(false, false, cx);
6344 }
6345
6346 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6347 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6348 let buffer = self.buffer.read(cx).snapshot(cx);
6349
6350 let mut edits = Vec::new();
6351 let mut unfold_ranges = Vec::new();
6352 let mut refold_creases = Vec::new();
6353
6354 let selections = self.selections.all::<Point>(cx);
6355 let mut selections = selections.iter().peekable();
6356 let mut contiguous_row_selections = Vec::new();
6357 let mut new_selections = Vec::new();
6358
6359 while let Some(selection) = selections.next() {
6360 // Find all the selections that span a contiguous row range
6361 let (start_row, end_row) = consume_contiguous_rows(
6362 &mut contiguous_row_selections,
6363 selection,
6364 &display_map,
6365 &mut selections,
6366 );
6367
6368 // Move the text spanned by the row range to be before the line preceding the row range
6369 if start_row.0 > 0 {
6370 let range_to_move = Point::new(
6371 start_row.previous_row().0,
6372 buffer.line_len(start_row.previous_row()),
6373 )
6374 ..Point::new(
6375 end_row.previous_row().0,
6376 buffer.line_len(end_row.previous_row()),
6377 );
6378 let insertion_point = display_map
6379 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6380 .0;
6381
6382 // Don't move lines across excerpts
6383 if buffer
6384 .excerpt_boundaries_in_range((
6385 Bound::Excluded(insertion_point),
6386 Bound::Included(range_to_move.end),
6387 ))
6388 .next()
6389 .is_none()
6390 {
6391 let text = buffer
6392 .text_for_range(range_to_move.clone())
6393 .flat_map(|s| s.chars())
6394 .skip(1)
6395 .chain(['\n'])
6396 .collect::<String>();
6397
6398 edits.push((
6399 buffer.anchor_after(range_to_move.start)
6400 ..buffer.anchor_before(range_to_move.end),
6401 String::new(),
6402 ));
6403 let insertion_anchor = buffer.anchor_after(insertion_point);
6404 edits.push((insertion_anchor..insertion_anchor, text));
6405
6406 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6407
6408 // Move selections up
6409 new_selections.extend(contiguous_row_selections.drain(..).map(
6410 |mut selection| {
6411 selection.start.row -= row_delta;
6412 selection.end.row -= row_delta;
6413 selection
6414 },
6415 ));
6416
6417 // Move folds up
6418 unfold_ranges.push(range_to_move.clone());
6419 for fold in display_map.folds_in_range(
6420 buffer.anchor_before(range_to_move.start)
6421 ..buffer.anchor_after(range_to_move.end),
6422 ) {
6423 let mut start = fold.range.start.to_point(&buffer);
6424 let mut end = fold.range.end.to_point(&buffer);
6425 start.row -= row_delta;
6426 end.row -= row_delta;
6427 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6428 }
6429 }
6430 }
6431
6432 // If we didn't move line(s), preserve the existing selections
6433 new_selections.append(&mut contiguous_row_selections);
6434 }
6435
6436 self.transact(cx, |this, cx| {
6437 this.unfold_ranges(&unfold_ranges, true, true, cx);
6438 this.buffer.update(cx, |buffer, cx| {
6439 for (range, text) in edits {
6440 buffer.edit([(range, text)], None, cx);
6441 }
6442 });
6443 this.fold_creases(refold_creases, true, cx);
6444 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6445 s.select(new_selections);
6446 })
6447 });
6448 }
6449
6450 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6451 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6452 let buffer = self.buffer.read(cx).snapshot(cx);
6453
6454 let mut edits = Vec::new();
6455 let mut unfold_ranges = Vec::new();
6456 let mut refold_creases = Vec::new();
6457
6458 let selections = self.selections.all::<Point>(cx);
6459 let mut selections = selections.iter().peekable();
6460 let mut contiguous_row_selections = Vec::new();
6461 let mut new_selections = Vec::new();
6462
6463 while let Some(selection) = selections.next() {
6464 // Find all the selections that span a contiguous row range
6465 let (start_row, end_row) = consume_contiguous_rows(
6466 &mut contiguous_row_selections,
6467 selection,
6468 &display_map,
6469 &mut selections,
6470 );
6471
6472 // Move the text spanned by the row range to be after the last line of the row range
6473 if end_row.0 <= buffer.max_point().row {
6474 let range_to_move =
6475 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6476 let insertion_point = display_map
6477 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6478 .0;
6479
6480 // Don't move lines across excerpt boundaries
6481 if buffer
6482 .excerpt_boundaries_in_range((
6483 Bound::Excluded(range_to_move.start),
6484 Bound::Included(insertion_point),
6485 ))
6486 .next()
6487 .is_none()
6488 {
6489 let mut text = String::from("\n");
6490 text.extend(buffer.text_for_range(range_to_move.clone()));
6491 text.pop(); // Drop trailing newline
6492 edits.push((
6493 buffer.anchor_after(range_to_move.start)
6494 ..buffer.anchor_before(range_to_move.end),
6495 String::new(),
6496 ));
6497 let insertion_anchor = buffer.anchor_after(insertion_point);
6498 edits.push((insertion_anchor..insertion_anchor, text));
6499
6500 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6501
6502 // Move selections down
6503 new_selections.extend(contiguous_row_selections.drain(..).map(
6504 |mut selection| {
6505 selection.start.row += row_delta;
6506 selection.end.row += row_delta;
6507 selection
6508 },
6509 ));
6510
6511 // Move folds down
6512 unfold_ranges.push(range_to_move.clone());
6513 for fold in display_map.folds_in_range(
6514 buffer.anchor_before(range_to_move.start)
6515 ..buffer.anchor_after(range_to_move.end),
6516 ) {
6517 let mut start = fold.range.start.to_point(&buffer);
6518 let mut end = fold.range.end.to_point(&buffer);
6519 start.row += row_delta;
6520 end.row += row_delta;
6521 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6522 }
6523 }
6524 }
6525
6526 // If we didn't move line(s), preserve the existing selections
6527 new_selections.append(&mut contiguous_row_selections);
6528 }
6529
6530 self.transact(cx, |this, cx| {
6531 this.unfold_ranges(&unfold_ranges, true, true, cx);
6532 this.buffer.update(cx, |buffer, cx| {
6533 for (range, text) in edits {
6534 buffer.edit([(range, text)], None, cx);
6535 }
6536 });
6537 this.fold_creases(refold_creases, true, cx);
6538 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6539 });
6540 }
6541
6542 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6543 let text_layout_details = &self.text_layout_details(cx);
6544 self.transact(cx, |this, cx| {
6545 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6546 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6547 let line_mode = s.line_mode;
6548 s.move_with(|display_map, selection| {
6549 if !selection.is_empty() || line_mode {
6550 return;
6551 }
6552
6553 let mut head = selection.head();
6554 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6555 if head.column() == display_map.line_len(head.row()) {
6556 transpose_offset = display_map
6557 .buffer_snapshot
6558 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6559 }
6560
6561 if transpose_offset == 0 {
6562 return;
6563 }
6564
6565 *head.column_mut() += 1;
6566 head = display_map.clip_point(head, Bias::Right);
6567 let goal = SelectionGoal::HorizontalPosition(
6568 display_map
6569 .x_for_display_point(head, text_layout_details)
6570 .into(),
6571 );
6572 selection.collapse_to(head, goal);
6573
6574 let transpose_start = display_map
6575 .buffer_snapshot
6576 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6577 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6578 let transpose_end = display_map
6579 .buffer_snapshot
6580 .clip_offset(transpose_offset + 1, Bias::Right);
6581 if let Some(ch) =
6582 display_map.buffer_snapshot.chars_at(transpose_start).next()
6583 {
6584 edits.push((transpose_start..transpose_offset, String::new()));
6585 edits.push((transpose_end..transpose_end, ch.to_string()));
6586 }
6587 }
6588 });
6589 edits
6590 });
6591 this.buffer
6592 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6593 let selections = this.selections.all::<usize>(cx);
6594 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6595 s.select(selections);
6596 });
6597 });
6598 }
6599
6600 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6601 self.rewrap_impl(IsVimMode::No, cx)
6602 }
6603
6604 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6605 let buffer = self.buffer.read(cx).snapshot(cx);
6606 let selections = self.selections.all::<Point>(cx);
6607 let mut selections = selections.iter().peekable();
6608
6609 let mut edits = Vec::new();
6610 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6611
6612 while let Some(selection) = selections.next() {
6613 let mut start_row = selection.start.row;
6614 let mut end_row = selection.end.row;
6615
6616 // Skip selections that overlap with a range that has already been rewrapped.
6617 let selection_range = start_row..end_row;
6618 if rewrapped_row_ranges
6619 .iter()
6620 .any(|range| range.overlaps(&selection_range))
6621 {
6622 continue;
6623 }
6624
6625 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6626
6627 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6628 match language_scope.language_name().0.as_ref() {
6629 "Markdown" | "Plain Text" => {
6630 should_rewrap = true;
6631 }
6632 _ => {}
6633 }
6634 }
6635
6636 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6637
6638 // Since not all lines in the selection may be at the same indent
6639 // level, choose the indent size that is the most common between all
6640 // of the lines.
6641 //
6642 // If there is a tie, we use the deepest indent.
6643 let (indent_size, indent_end) = {
6644 let mut indent_size_occurrences = HashMap::default();
6645 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6646
6647 for row in start_row..=end_row {
6648 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6649 rows_by_indent_size.entry(indent).or_default().push(row);
6650 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6651 }
6652
6653 let indent_size = indent_size_occurrences
6654 .into_iter()
6655 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6656 .map(|(indent, _)| indent)
6657 .unwrap_or_default();
6658 let row = rows_by_indent_size[&indent_size][0];
6659 let indent_end = Point::new(row, indent_size.len);
6660
6661 (indent_size, indent_end)
6662 };
6663
6664 let mut line_prefix = indent_size.chars().collect::<String>();
6665
6666 if let Some(comment_prefix) =
6667 buffer
6668 .language_scope_at(selection.head())
6669 .and_then(|language| {
6670 language
6671 .line_comment_prefixes()
6672 .iter()
6673 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6674 .cloned()
6675 })
6676 {
6677 line_prefix.push_str(&comment_prefix);
6678 should_rewrap = true;
6679 }
6680
6681 if !should_rewrap {
6682 continue;
6683 }
6684
6685 if selection.is_empty() {
6686 'expand_upwards: while start_row > 0 {
6687 let prev_row = start_row - 1;
6688 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6689 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6690 {
6691 start_row = prev_row;
6692 } else {
6693 break 'expand_upwards;
6694 }
6695 }
6696
6697 'expand_downwards: while end_row < buffer.max_point().row {
6698 let next_row = end_row + 1;
6699 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6700 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6701 {
6702 end_row = next_row;
6703 } else {
6704 break 'expand_downwards;
6705 }
6706 }
6707 }
6708
6709 let start = Point::new(start_row, 0);
6710 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6711 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6712 let Some(lines_without_prefixes) = selection_text
6713 .lines()
6714 .map(|line| {
6715 line.strip_prefix(&line_prefix)
6716 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6717 .ok_or_else(|| {
6718 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6719 })
6720 })
6721 .collect::<Result<Vec<_>, _>>()
6722 .log_err()
6723 else {
6724 continue;
6725 };
6726
6727 let wrap_column = buffer
6728 .settings_at(Point::new(start_row, 0), cx)
6729 .preferred_line_length as usize;
6730 let wrapped_text = wrap_with_prefix(
6731 line_prefix,
6732 lines_without_prefixes.join(" "),
6733 wrap_column,
6734 tab_size,
6735 );
6736
6737 // TODO: should always use char-based diff while still supporting cursor behavior that
6738 // matches vim.
6739 let diff = match is_vim_mode {
6740 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6741 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6742 };
6743 let mut offset = start.to_offset(&buffer);
6744 let mut moved_since_edit = true;
6745
6746 for change in diff.iter_all_changes() {
6747 let value = change.value();
6748 match change.tag() {
6749 ChangeTag::Equal => {
6750 offset += value.len();
6751 moved_since_edit = true;
6752 }
6753 ChangeTag::Delete => {
6754 let start = buffer.anchor_after(offset);
6755 let end = buffer.anchor_before(offset + value.len());
6756
6757 if moved_since_edit {
6758 edits.push((start..end, String::new()));
6759 } else {
6760 edits.last_mut().unwrap().0.end = end;
6761 }
6762
6763 offset += value.len();
6764 moved_since_edit = false;
6765 }
6766 ChangeTag::Insert => {
6767 if moved_since_edit {
6768 let anchor = buffer.anchor_after(offset);
6769 edits.push((anchor..anchor, value.to_string()));
6770 } else {
6771 edits.last_mut().unwrap().1.push_str(value);
6772 }
6773
6774 moved_since_edit = false;
6775 }
6776 }
6777 }
6778
6779 rewrapped_row_ranges.push(start_row..=end_row);
6780 }
6781
6782 self.buffer
6783 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6784 }
6785
6786 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6787 let mut text = String::new();
6788 let buffer = self.buffer.read(cx).snapshot(cx);
6789 let mut selections = self.selections.all::<Point>(cx);
6790 let mut clipboard_selections = Vec::with_capacity(selections.len());
6791 {
6792 let max_point = buffer.max_point();
6793 let mut is_first = true;
6794 for selection in &mut selections {
6795 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6796 if is_entire_line {
6797 selection.start = Point::new(selection.start.row, 0);
6798 if !selection.is_empty() && selection.end.column == 0 {
6799 selection.end = cmp::min(max_point, selection.end);
6800 } else {
6801 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6802 }
6803 selection.goal = SelectionGoal::None;
6804 }
6805 if is_first {
6806 is_first = false;
6807 } else {
6808 text += "\n";
6809 }
6810 let mut len = 0;
6811 for chunk in buffer.text_for_range(selection.start..selection.end) {
6812 text.push_str(chunk);
6813 len += chunk.len();
6814 }
6815 clipboard_selections.push(ClipboardSelection {
6816 len,
6817 is_entire_line,
6818 first_line_indent: buffer
6819 .indent_size_for_line(MultiBufferRow(selection.start.row))
6820 .len,
6821 });
6822 }
6823 }
6824
6825 self.transact(cx, |this, cx| {
6826 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6827 s.select(selections);
6828 });
6829 this.insert("", cx);
6830 });
6831 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6832 }
6833
6834 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6835 let item = self.cut_common(cx);
6836 cx.write_to_clipboard(item);
6837 }
6838
6839 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6840 self.change_selections(None, cx, |s| {
6841 s.move_with(|snapshot, sel| {
6842 if sel.is_empty() {
6843 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6844 }
6845 });
6846 });
6847 let item = self.cut_common(cx);
6848 cx.set_global(KillRing(item))
6849 }
6850
6851 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6852 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6853 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6854 (kill_ring.text().to_string(), kill_ring.metadata_json())
6855 } else {
6856 return;
6857 }
6858 } else {
6859 return;
6860 };
6861 self.do_paste(&text, metadata, false, cx);
6862 }
6863
6864 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6865 let selections = self.selections.all::<Point>(cx);
6866 let buffer = self.buffer.read(cx).read(cx);
6867 let mut text = String::new();
6868
6869 let mut clipboard_selections = Vec::with_capacity(selections.len());
6870 {
6871 let max_point = buffer.max_point();
6872 let mut is_first = true;
6873 for selection in selections.iter() {
6874 let mut start = selection.start;
6875 let mut end = selection.end;
6876 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6877 if is_entire_line {
6878 start = Point::new(start.row, 0);
6879 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6880 }
6881 if is_first {
6882 is_first = false;
6883 } else {
6884 text += "\n";
6885 }
6886 let mut len = 0;
6887 for chunk in buffer.text_for_range(start..end) {
6888 text.push_str(chunk);
6889 len += chunk.len();
6890 }
6891 clipboard_selections.push(ClipboardSelection {
6892 len,
6893 is_entire_line,
6894 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6895 });
6896 }
6897 }
6898
6899 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6900 text,
6901 clipboard_selections,
6902 ));
6903 }
6904
6905 pub fn do_paste(
6906 &mut self,
6907 text: &String,
6908 clipboard_selections: Option<Vec<ClipboardSelection>>,
6909 handle_entire_lines: bool,
6910 cx: &mut ViewContext<Self>,
6911 ) {
6912 if self.read_only(cx) {
6913 return;
6914 }
6915
6916 let clipboard_text = Cow::Borrowed(text);
6917
6918 self.transact(cx, |this, cx| {
6919 if let Some(mut clipboard_selections) = clipboard_selections {
6920 let old_selections = this.selections.all::<usize>(cx);
6921 let all_selections_were_entire_line =
6922 clipboard_selections.iter().all(|s| s.is_entire_line);
6923 let first_selection_indent_column =
6924 clipboard_selections.first().map(|s| s.first_line_indent);
6925 if clipboard_selections.len() != old_selections.len() {
6926 clipboard_selections.drain(..);
6927 }
6928 let cursor_offset = this.selections.last::<usize>(cx).head();
6929 let mut auto_indent_on_paste = true;
6930
6931 this.buffer.update(cx, |buffer, cx| {
6932 let snapshot = buffer.read(cx);
6933 auto_indent_on_paste =
6934 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6935
6936 let mut start_offset = 0;
6937 let mut edits = Vec::new();
6938 let mut original_indent_columns = Vec::new();
6939 for (ix, selection) in old_selections.iter().enumerate() {
6940 let to_insert;
6941 let entire_line;
6942 let original_indent_column;
6943 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6944 let end_offset = start_offset + clipboard_selection.len;
6945 to_insert = &clipboard_text[start_offset..end_offset];
6946 entire_line = clipboard_selection.is_entire_line;
6947 start_offset = end_offset + 1;
6948 original_indent_column = Some(clipboard_selection.first_line_indent);
6949 } else {
6950 to_insert = clipboard_text.as_str();
6951 entire_line = all_selections_were_entire_line;
6952 original_indent_column = first_selection_indent_column
6953 }
6954
6955 // If the corresponding selection was empty when this slice of the
6956 // clipboard text was written, then the entire line containing the
6957 // selection was copied. If this selection is also currently empty,
6958 // then paste the line before the current line of the buffer.
6959 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6960 let column = selection.start.to_point(&snapshot).column as usize;
6961 let line_start = selection.start - column;
6962 line_start..line_start
6963 } else {
6964 selection.range()
6965 };
6966
6967 edits.push((range, to_insert));
6968 original_indent_columns.extend(original_indent_column);
6969 }
6970 drop(snapshot);
6971
6972 buffer.edit(
6973 edits,
6974 if auto_indent_on_paste {
6975 Some(AutoindentMode::Block {
6976 original_indent_columns,
6977 })
6978 } else {
6979 None
6980 },
6981 cx,
6982 );
6983 });
6984
6985 let selections = this.selections.all::<usize>(cx);
6986 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6987 } else {
6988 this.insert(&clipboard_text, cx);
6989 }
6990 });
6991 }
6992
6993 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
6994 if let Some(item) = cx.read_from_clipboard() {
6995 let entries = item.entries();
6996
6997 match entries.first() {
6998 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
6999 // of all the pasted entries.
7000 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7001 .do_paste(
7002 clipboard_string.text(),
7003 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7004 true,
7005 cx,
7006 ),
7007 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7008 }
7009 }
7010 }
7011
7012 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7013 if self.read_only(cx) {
7014 return;
7015 }
7016
7017 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7018 if let Some((selections, _)) =
7019 self.selection_history.transaction(transaction_id).cloned()
7020 {
7021 self.change_selections(None, cx, |s| {
7022 s.select_anchors(selections.to_vec());
7023 });
7024 }
7025 self.request_autoscroll(Autoscroll::fit(), cx);
7026 self.unmark_text(cx);
7027 self.refresh_inline_completion(true, false, cx);
7028 cx.emit(EditorEvent::Edited { transaction_id });
7029 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7030 }
7031 }
7032
7033 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7034 if self.read_only(cx) {
7035 return;
7036 }
7037
7038 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7039 if let Some((_, Some(selections))) =
7040 self.selection_history.transaction(transaction_id).cloned()
7041 {
7042 self.change_selections(None, cx, |s| {
7043 s.select_anchors(selections.to_vec());
7044 });
7045 }
7046 self.request_autoscroll(Autoscroll::fit(), cx);
7047 self.unmark_text(cx);
7048 self.refresh_inline_completion(true, false, cx);
7049 cx.emit(EditorEvent::Edited { transaction_id });
7050 }
7051 }
7052
7053 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7054 self.buffer
7055 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7056 }
7057
7058 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7059 self.buffer
7060 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7061 }
7062
7063 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7064 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7065 let line_mode = s.line_mode;
7066 s.move_with(|map, selection| {
7067 let cursor = if selection.is_empty() && !line_mode {
7068 movement::left(map, selection.start)
7069 } else {
7070 selection.start
7071 };
7072 selection.collapse_to(cursor, SelectionGoal::None);
7073 });
7074 })
7075 }
7076
7077 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7078 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7079 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7080 })
7081 }
7082
7083 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7084 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7085 let line_mode = s.line_mode;
7086 s.move_with(|map, selection| {
7087 let cursor = if selection.is_empty() && !line_mode {
7088 movement::right(map, selection.end)
7089 } else {
7090 selection.end
7091 };
7092 selection.collapse_to(cursor, SelectionGoal::None)
7093 });
7094 })
7095 }
7096
7097 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7098 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7099 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7100 })
7101 }
7102
7103 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7104 if self.take_rename(true, cx).is_some() {
7105 return;
7106 }
7107
7108 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7109 cx.propagate();
7110 return;
7111 }
7112
7113 let text_layout_details = &self.text_layout_details(cx);
7114 let selection_count = self.selections.count();
7115 let first_selection = self.selections.first_anchor();
7116
7117 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7118 let line_mode = s.line_mode;
7119 s.move_with(|map, selection| {
7120 if !selection.is_empty() && !line_mode {
7121 selection.goal = SelectionGoal::None;
7122 }
7123 let (cursor, goal) = movement::up(
7124 map,
7125 selection.start,
7126 selection.goal,
7127 false,
7128 text_layout_details,
7129 );
7130 selection.collapse_to(cursor, goal);
7131 });
7132 });
7133
7134 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7135 {
7136 cx.propagate();
7137 }
7138 }
7139
7140 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7141 if self.take_rename(true, cx).is_some() {
7142 return;
7143 }
7144
7145 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7146 cx.propagate();
7147 return;
7148 }
7149
7150 let text_layout_details = &self.text_layout_details(cx);
7151
7152 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7153 let line_mode = s.line_mode;
7154 s.move_with(|map, selection| {
7155 if !selection.is_empty() && !line_mode {
7156 selection.goal = SelectionGoal::None;
7157 }
7158 let (cursor, goal) = movement::up_by_rows(
7159 map,
7160 selection.start,
7161 action.lines,
7162 selection.goal,
7163 false,
7164 text_layout_details,
7165 );
7166 selection.collapse_to(cursor, goal);
7167 });
7168 })
7169 }
7170
7171 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7172 if self.take_rename(true, cx).is_some() {
7173 return;
7174 }
7175
7176 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7177 cx.propagate();
7178 return;
7179 }
7180
7181 let text_layout_details = &self.text_layout_details(cx);
7182
7183 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7184 let line_mode = s.line_mode;
7185 s.move_with(|map, selection| {
7186 if !selection.is_empty() && !line_mode {
7187 selection.goal = SelectionGoal::None;
7188 }
7189 let (cursor, goal) = movement::down_by_rows(
7190 map,
7191 selection.start,
7192 action.lines,
7193 selection.goal,
7194 false,
7195 text_layout_details,
7196 );
7197 selection.collapse_to(cursor, goal);
7198 });
7199 })
7200 }
7201
7202 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7203 let text_layout_details = &self.text_layout_details(cx);
7204 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7205 s.move_heads_with(|map, head, goal| {
7206 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7207 })
7208 })
7209 }
7210
7211 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7212 let text_layout_details = &self.text_layout_details(cx);
7213 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7214 s.move_heads_with(|map, head, goal| {
7215 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7216 })
7217 })
7218 }
7219
7220 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7221 let Some(row_count) = self.visible_row_count() else {
7222 return;
7223 };
7224
7225 let text_layout_details = &self.text_layout_details(cx);
7226
7227 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7228 s.move_heads_with(|map, head, goal| {
7229 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7230 })
7231 })
7232 }
7233
7234 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7235 if self.take_rename(true, cx).is_some() {
7236 return;
7237 }
7238
7239 if self
7240 .context_menu
7241 .borrow_mut()
7242 .as_mut()
7243 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7244 .unwrap_or(false)
7245 {
7246 return;
7247 }
7248
7249 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7250 cx.propagate();
7251 return;
7252 }
7253
7254 let Some(row_count) = self.visible_row_count() else {
7255 return;
7256 };
7257
7258 let autoscroll = if action.center_cursor {
7259 Autoscroll::center()
7260 } else {
7261 Autoscroll::fit()
7262 };
7263
7264 let text_layout_details = &self.text_layout_details(cx);
7265
7266 self.change_selections(Some(autoscroll), cx, |s| {
7267 let line_mode = s.line_mode;
7268 s.move_with(|map, selection| {
7269 if !selection.is_empty() && !line_mode {
7270 selection.goal = SelectionGoal::None;
7271 }
7272 let (cursor, goal) = movement::up_by_rows(
7273 map,
7274 selection.end,
7275 row_count,
7276 selection.goal,
7277 false,
7278 text_layout_details,
7279 );
7280 selection.collapse_to(cursor, goal);
7281 });
7282 });
7283 }
7284
7285 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7286 let text_layout_details = &self.text_layout_details(cx);
7287 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7288 s.move_heads_with(|map, head, goal| {
7289 movement::up(map, head, goal, false, text_layout_details)
7290 })
7291 })
7292 }
7293
7294 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7295 self.take_rename(true, cx);
7296
7297 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7298 cx.propagate();
7299 return;
7300 }
7301
7302 let text_layout_details = &self.text_layout_details(cx);
7303 let selection_count = self.selections.count();
7304 let first_selection = self.selections.first_anchor();
7305
7306 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7307 let line_mode = s.line_mode;
7308 s.move_with(|map, selection| {
7309 if !selection.is_empty() && !line_mode {
7310 selection.goal = SelectionGoal::None;
7311 }
7312 let (cursor, goal) = movement::down(
7313 map,
7314 selection.end,
7315 selection.goal,
7316 false,
7317 text_layout_details,
7318 );
7319 selection.collapse_to(cursor, goal);
7320 });
7321 });
7322
7323 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7324 {
7325 cx.propagate();
7326 }
7327 }
7328
7329 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7330 let Some(row_count) = self.visible_row_count() else {
7331 return;
7332 };
7333
7334 let text_layout_details = &self.text_layout_details(cx);
7335
7336 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7337 s.move_heads_with(|map, head, goal| {
7338 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7339 })
7340 })
7341 }
7342
7343 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7344 if self.take_rename(true, cx).is_some() {
7345 return;
7346 }
7347
7348 if self
7349 .context_menu
7350 .borrow_mut()
7351 .as_mut()
7352 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7353 .unwrap_or(false)
7354 {
7355 return;
7356 }
7357
7358 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7359 cx.propagate();
7360 return;
7361 }
7362
7363 let Some(row_count) = self.visible_row_count() else {
7364 return;
7365 };
7366
7367 let autoscroll = if action.center_cursor {
7368 Autoscroll::center()
7369 } else {
7370 Autoscroll::fit()
7371 };
7372
7373 let text_layout_details = &self.text_layout_details(cx);
7374 self.change_selections(Some(autoscroll), cx, |s| {
7375 let line_mode = s.line_mode;
7376 s.move_with(|map, selection| {
7377 if !selection.is_empty() && !line_mode {
7378 selection.goal = SelectionGoal::None;
7379 }
7380 let (cursor, goal) = movement::down_by_rows(
7381 map,
7382 selection.end,
7383 row_count,
7384 selection.goal,
7385 false,
7386 text_layout_details,
7387 );
7388 selection.collapse_to(cursor, goal);
7389 });
7390 });
7391 }
7392
7393 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7394 let text_layout_details = &self.text_layout_details(cx);
7395 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7396 s.move_heads_with(|map, head, goal| {
7397 movement::down(map, head, goal, false, text_layout_details)
7398 })
7399 });
7400 }
7401
7402 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7403 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7404 context_menu.select_first(self.completion_provider.as_deref(), cx);
7405 }
7406 }
7407
7408 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7409 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7410 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7411 }
7412 }
7413
7414 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7415 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7416 context_menu.select_next(self.completion_provider.as_deref(), cx);
7417 }
7418 }
7419
7420 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7421 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7422 context_menu.select_last(self.completion_provider.as_deref(), cx);
7423 }
7424 }
7425
7426 pub fn move_to_previous_word_start(
7427 &mut self,
7428 _: &MoveToPreviousWordStart,
7429 cx: &mut ViewContext<Self>,
7430 ) {
7431 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7432 s.move_cursors_with(|map, head, _| {
7433 (
7434 movement::previous_word_start(map, head),
7435 SelectionGoal::None,
7436 )
7437 });
7438 })
7439 }
7440
7441 pub fn move_to_previous_subword_start(
7442 &mut self,
7443 _: &MoveToPreviousSubwordStart,
7444 cx: &mut ViewContext<Self>,
7445 ) {
7446 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7447 s.move_cursors_with(|map, head, _| {
7448 (
7449 movement::previous_subword_start(map, head),
7450 SelectionGoal::None,
7451 )
7452 });
7453 })
7454 }
7455
7456 pub fn select_to_previous_word_start(
7457 &mut self,
7458 _: &SelectToPreviousWordStart,
7459 cx: &mut ViewContext<Self>,
7460 ) {
7461 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7462 s.move_heads_with(|map, head, _| {
7463 (
7464 movement::previous_word_start(map, head),
7465 SelectionGoal::None,
7466 )
7467 });
7468 })
7469 }
7470
7471 pub fn select_to_previous_subword_start(
7472 &mut self,
7473 _: &SelectToPreviousSubwordStart,
7474 cx: &mut ViewContext<Self>,
7475 ) {
7476 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7477 s.move_heads_with(|map, head, _| {
7478 (
7479 movement::previous_subword_start(map, head),
7480 SelectionGoal::None,
7481 )
7482 });
7483 })
7484 }
7485
7486 pub fn delete_to_previous_word_start(
7487 &mut self,
7488 action: &DeleteToPreviousWordStart,
7489 cx: &mut ViewContext<Self>,
7490 ) {
7491 self.transact(cx, |this, cx| {
7492 this.select_autoclose_pair(cx);
7493 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7494 let line_mode = s.line_mode;
7495 s.move_with(|map, selection| {
7496 if selection.is_empty() && !line_mode {
7497 let cursor = if action.ignore_newlines {
7498 movement::previous_word_start(map, selection.head())
7499 } else {
7500 movement::previous_word_start_or_newline(map, selection.head())
7501 };
7502 selection.set_head(cursor, SelectionGoal::None);
7503 }
7504 });
7505 });
7506 this.insert("", cx);
7507 });
7508 }
7509
7510 pub fn delete_to_previous_subword_start(
7511 &mut self,
7512 _: &DeleteToPreviousSubwordStart,
7513 cx: &mut ViewContext<Self>,
7514 ) {
7515 self.transact(cx, |this, cx| {
7516 this.select_autoclose_pair(cx);
7517 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7518 let line_mode = s.line_mode;
7519 s.move_with(|map, selection| {
7520 if selection.is_empty() && !line_mode {
7521 let cursor = movement::previous_subword_start(map, selection.head());
7522 selection.set_head(cursor, SelectionGoal::None);
7523 }
7524 });
7525 });
7526 this.insert("", cx);
7527 });
7528 }
7529
7530 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7531 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7532 s.move_cursors_with(|map, head, _| {
7533 (movement::next_word_end(map, head), SelectionGoal::None)
7534 });
7535 })
7536 }
7537
7538 pub fn move_to_next_subword_end(
7539 &mut self,
7540 _: &MoveToNextSubwordEnd,
7541 cx: &mut ViewContext<Self>,
7542 ) {
7543 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7544 s.move_cursors_with(|map, head, _| {
7545 (movement::next_subword_end(map, head), SelectionGoal::None)
7546 });
7547 })
7548 }
7549
7550 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7551 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7552 s.move_heads_with(|map, head, _| {
7553 (movement::next_word_end(map, head), SelectionGoal::None)
7554 });
7555 })
7556 }
7557
7558 pub fn select_to_next_subword_end(
7559 &mut self,
7560 _: &SelectToNextSubwordEnd,
7561 cx: &mut ViewContext<Self>,
7562 ) {
7563 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7564 s.move_heads_with(|map, head, _| {
7565 (movement::next_subword_end(map, head), SelectionGoal::None)
7566 });
7567 })
7568 }
7569
7570 pub fn delete_to_next_word_end(
7571 &mut self,
7572 action: &DeleteToNextWordEnd,
7573 cx: &mut ViewContext<Self>,
7574 ) {
7575 self.transact(cx, |this, cx| {
7576 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7577 let line_mode = s.line_mode;
7578 s.move_with(|map, selection| {
7579 if selection.is_empty() && !line_mode {
7580 let cursor = if action.ignore_newlines {
7581 movement::next_word_end(map, selection.head())
7582 } else {
7583 movement::next_word_end_or_newline(map, selection.head())
7584 };
7585 selection.set_head(cursor, SelectionGoal::None);
7586 }
7587 });
7588 });
7589 this.insert("", cx);
7590 });
7591 }
7592
7593 pub fn delete_to_next_subword_end(
7594 &mut self,
7595 _: &DeleteToNextSubwordEnd,
7596 cx: &mut ViewContext<Self>,
7597 ) {
7598 self.transact(cx, |this, cx| {
7599 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7600 s.move_with(|map, selection| {
7601 if selection.is_empty() {
7602 let cursor = movement::next_subword_end(map, selection.head());
7603 selection.set_head(cursor, SelectionGoal::None);
7604 }
7605 });
7606 });
7607 this.insert("", cx);
7608 });
7609 }
7610
7611 pub fn move_to_beginning_of_line(
7612 &mut self,
7613 action: &MoveToBeginningOfLine,
7614 cx: &mut ViewContext<Self>,
7615 ) {
7616 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7617 s.move_cursors_with(|map, head, _| {
7618 (
7619 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7620 SelectionGoal::None,
7621 )
7622 });
7623 })
7624 }
7625
7626 pub fn select_to_beginning_of_line(
7627 &mut self,
7628 action: &SelectToBeginningOfLine,
7629 cx: &mut ViewContext<Self>,
7630 ) {
7631 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7632 s.move_heads_with(|map, head, _| {
7633 (
7634 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7635 SelectionGoal::None,
7636 )
7637 });
7638 });
7639 }
7640
7641 pub fn delete_to_beginning_of_line(
7642 &mut self,
7643 _: &DeleteToBeginningOfLine,
7644 cx: &mut ViewContext<Self>,
7645 ) {
7646 self.transact(cx, |this, cx| {
7647 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7648 s.move_with(|_, selection| {
7649 selection.reversed = true;
7650 });
7651 });
7652
7653 this.select_to_beginning_of_line(
7654 &SelectToBeginningOfLine {
7655 stop_at_soft_wraps: false,
7656 },
7657 cx,
7658 );
7659 this.backspace(&Backspace, cx);
7660 });
7661 }
7662
7663 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7664 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7665 s.move_cursors_with(|map, head, _| {
7666 (
7667 movement::line_end(map, head, action.stop_at_soft_wraps),
7668 SelectionGoal::None,
7669 )
7670 });
7671 })
7672 }
7673
7674 pub fn select_to_end_of_line(
7675 &mut self,
7676 action: &SelectToEndOfLine,
7677 cx: &mut ViewContext<Self>,
7678 ) {
7679 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7680 s.move_heads_with(|map, head, _| {
7681 (
7682 movement::line_end(map, head, action.stop_at_soft_wraps),
7683 SelectionGoal::None,
7684 )
7685 });
7686 })
7687 }
7688
7689 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7690 self.transact(cx, |this, cx| {
7691 this.select_to_end_of_line(
7692 &SelectToEndOfLine {
7693 stop_at_soft_wraps: false,
7694 },
7695 cx,
7696 );
7697 this.delete(&Delete, cx);
7698 });
7699 }
7700
7701 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7702 self.transact(cx, |this, cx| {
7703 this.select_to_end_of_line(
7704 &SelectToEndOfLine {
7705 stop_at_soft_wraps: false,
7706 },
7707 cx,
7708 );
7709 this.cut(&Cut, cx);
7710 });
7711 }
7712
7713 pub fn move_to_start_of_paragraph(
7714 &mut self,
7715 _: &MoveToStartOfParagraph,
7716 cx: &mut ViewContext<Self>,
7717 ) {
7718 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7719 cx.propagate();
7720 return;
7721 }
7722
7723 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7724 s.move_with(|map, selection| {
7725 selection.collapse_to(
7726 movement::start_of_paragraph(map, selection.head(), 1),
7727 SelectionGoal::None,
7728 )
7729 });
7730 })
7731 }
7732
7733 pub fn move_to_end_of_paragraph(
7734 &mut self,
7735 _: &MoveToEndOfParagraph,
7736 cx: &mut ViewContext<Self>,
7737 ) {
7738 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7739 cx.propagate();
7740 return;
7741 }
7742
7743 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7744 s.move_with(|map, selection| {
7745 selection.collapse_to(
7746 movement::end_of_paragraph(map, selection.head(), 1),
7747 SelectionGoal::None,
7748 )
7749 });
7750 })
7751 }
7752
7753 pub fn select_to_start_of_paragraph(
7754 &mut self,
7755 _: &SelectToStartOfParagraph,
7756 cx: &mut ViewContext<Self>,
7757 ) {
7758 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7759 cx.propagate();
7760 return;
7761 }
7762
7763 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7764 s.move_heads_with(|map, head, _| {
7765 (
7766 movement::start_of_paragraph(map, head, 1),
7767 SelectionGoal::None,
7768 )
7769 });
7770 })
7771 }
7772
7773 pub fn select_to_end_of_paragraph(
7774 &mut self,
7775 _: &SelectToEndOfParagraph,
7776 cx: &mut ViewContext<Self>,
7777 ) {
7778 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7779 cx.propagate();
7780 return;
7781 }
7782
7783 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7784 s.move_heads_with(|map, head, _| {
7785 (
7786 movement::end_of_paragraph(map, head, 1),
7787 SelectionGoal::None,
7788 )
7789 });
7790 })
7791 }
7792
7793 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7794 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7795 cx.propagate();
7796 return;
7797 }
7798
7799 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7800 s.select_ranges(vec![0..0]);
7801 });
7802 }
7803
7804 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7805 let mut selection = self.selections.last::<Point>(cx);
7806 selection.set_head(Point::zero(), SelectionGoal::None);
7807
7808 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7809 s.select(vec![selection]);
7810 });
7811 }
7812
7813 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7814 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7815 cx.propagate();
7816 return;
7817 }
7818
7819 let cursor = self.buffer.read(cx).read(cx).len();
7820 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7821 s.select_ranges(vec![cursor..cursor])
7822 });
7823 }
7824
7825 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7826 self.nav_history = nav_history;
7827 }
7828
7829 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7830 self.nav_history.as_ref()
7831 }
7832
7833 fn push_to_nav_history(
7834 &mut self,
7835 cursor_anchor: Anchor,
7836 new_position: Option<Point>,
7837 cx: &mut ViewContext<Self>,
7838 ) {
7839 if let Some(nav_history) = self.nav_history.as_mut() {
7840 let buffer = self.buffer.read(cx).read(cx);
7841 let cursor_position = cursor_anchor.to_point(&buffer);
7842 let scroll_state = self.scroll_manager.anchor();
7843 let scroll_top_row = scroll_state.top_row(&buffer);
7844 drop(buffer);
7845
7846 if let Some(new_position) = new_position {
7847 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7848 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7849 return;
7850 }
7851 }
7852
7853 nav_history.push(
7854 Some(NavigationData {
7855 cursor_anchor,
7856 cursor_position,
7857 scroll_anchor: scroll_state,
7858 scroll_top_row,
7859 }),
7860 cx,
7861 );
7862 }
7863 }
7864
7865 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7866 let buffer = self.buffer.read(cx).snapshot(cx);
7867 let mut selection = self.selections.first::<usize>(cx);
7868 selection.set_head(buffer.len(), SelectionGoal::None);
7869 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7870 s.select(vec![selection]);
7871 });
7872 }
7873
7874 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7875 let end = self.buffer.read(cx).read(cx).len();
7876 self.change_selections(None, cx, |s| {
7877 s.select_ranges(vec![0..end]);
7878 });
7879 }
7880
7881 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7882 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7883 let mut selections = self.selections.all::<Point>(cx);
7884 let max_point = display_map.buffer_snapshot.max_point();
7885 for selection in &mut selections {
7886 let rows = selection.spanned_rows(true, &display_map);
7887 selection.start = Point::new(rows.start.0, 0);
7888 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7889 selection.reversed = false;
7890 }
7891 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7892 s.select(selections);
7893 });
7894 }
7895
7896 pub fn split_selection_into_lines(
7897 &mut self,
7898 _: &SplitSelectionIntoLines,
7899 cx: &mut ViewContext<Self>,
7900 ) {
7901 let mut to_unfold = Vec::new();
7902 let mut new_selection_ranges = Vec::new();
7903 {
7904 let selections = self.selections.all::<Point>(cx);
7905 let buffer = self.buffer.read(cx).read(cx);
7906 for selection in selections {
7907 for row in selection.start.row..selection.end.row {
7908 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7909 new_selection_ranges.push(cursor..cursor);
7910 }
7911 new_selection_ranges.push(selection.end..selection.end);
7912 to_unfold.push(selection.start..selection.end);
7913 }
7914 }
7915 self.unfold_ranges(&to_unfold, true, true, cx);
7916 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7917 s.select_ranges(new_selection_ranges);
7918 });
7919 }
7920
7921 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7922 self.add_selection(true, cx);
7923 }
7924
7925 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7926 self.add_selection(false, cx);
7927 }
7928
7929 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7930 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7931 let mut selections = self.selections.all::<Point>(cx);
7932 let text_layout_details = self.text_layout_details(cx);
7933 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7934 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7935 let range = oldest_selection.display_range(&display_map).sorted();
7936
7937 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7938 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7939 let positions = start_x.min(end_x)..start_x.max(end_x);
7940
7941 selections.clear();
7942 let mut stack = Vec::new();
7943 for row in range.start.row().0..=range.end.row().0 {
7944 if let Some(selection) = self.selections.build_columnar_selection(
7945 &display_map,
7946 DisplayRow(row),
7947 &positions,
7948 oldest_selection.reversed,
7949 &text_layout_details,
7950 ) {
7951 stack.push(selection.id);
7952 selections.push(selection);
7953 }
7954 }
7955
7956 if above {
7957 stack.reverse();
7958 }
7959
7960 AddSelectionsState { above, stack }
7961 });
7962
7963 let last_added_selection = *state.stack.last().unwrap();
7964 let mut new_selections = Vec::new();
7965 if above == state.above {
7966 let end_row = if above {
7967 DisplayRow(0)
7968 } else {
7969 display_map.max_point().row()
7970 };
7971
7972 'outer: for selection in selections {
7973 if selection.id == last_added_selection {
7974 let range = selection.display_range(&display_map).sorted();
7975 debug_assert_eq!(range.start.row(), range.end.row());
7976 let mut row = range.start.row();
7977 let positions =
7978 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7979 px(start)..px(end)
7980 } else {
7981 let start_x =
7982 display_map.x_for_display_point(range.start, &text_layout_details);
7983 let end_x =
7984 display_map.x_for_display_point(range.end, &text_layout_details);
7985 start_x.min(end_x)..start_x.max(end_x)
7986 };
7987
7988 while row != end_row {
7989 if above {
7990 row.0 -= 1;
7991 } else {
7992 row.0 += 1;
7993 }
7994
7995 if let Some(new_selection) = self.selections.build_columnar_selection(
7996 &display_map,
7997 row,
7998 &positions,
7999 selection.reversed,
8000 &text_layout_details,
8001 ) {
8002 state.stack.push(new_selection.id);
8003 if above {
8004 new_selections.push(new_selection);
8005 new_selections.push(selection);
8006 } else {
8007 new_selections.push(selection);
8008 new_selections.push(new_selection);
8009 }
8010
8011 continue 'outer;
8012 }
8013 }
8014 }
8015
8016 new_selections.push(selection);
8017 }
8018 } else {
8019 new_selections = selections;
8020 new_selections.retain(|s| s.id != last_added_selection);
8021 state.stack.pop();
8022 }
8023
8024 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8025 s.select(new_selections);
8026 });
8027 if state.stack.len() > 1 {
8028 self.add_selections_state = Some(state);
8029 }
8030 }
8031
8032 pub fn select_next_match_internal(
8033 &mut self,
8034 display_map: &DisplaySnapshot,
8035 replace_newest: bool,
8036 autoscroll: Option<Autoscroll>,
8037 cx: &mut ViewContext<Self>,
8038 ) -> Result<()> {
8039 fn select_next_match_ranges(
8040 this: &mut Editor,
8041 range: Range<usize>,
8042 replace_newest: bool,
8043 auto_scroll: Option<Autoscroll>,
8044 cx: &mut ViewContext<Editor>,
8045 ) {
8046 this.unfold_ranges(&[range.clone()], false, true, cx);
8047 this.change_selections(auto_scroll, cx, |s| {
8048 if replace_newest {
8049 s.delete(s.newest_anchor().id);
8050 }
8051 s.insert_range(range.clone());
8052 });
8053 }
8054
8055 let buffer = &display_map.buffer_snapshot;
8056 let mut selections = self.selections.all::<usize>(cx);
8057 if let Some(mut select_next_state) = self.select_next_state.take() {
8058 let query = &select_next_state.query;
8059 if !select_next_state.done {
8060 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8061 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8062 let mut next_selected_range = None;
8063
8064 let bytes_after_last_selection =
8065 buffer.bytes_in_range(last_selection.end..buffer.len());
8066 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8067 let query_matches = query
8068 .stream_find_iter(bytes_after_last_selection)
8069 .map(|result| (last_selection.end, result))
8070 .chain(
8071 query
8072 .stream_find_iter(bytes_before_first_selection)
8073 .map(|result| (0, result)),
8074 );
8075
8076 for (start_offset, query_match) in query_matches {
8077 let query_match = query_match.unwrap(); // can only fail due to I/O
8078 let offset_range =
8079 start_offset + query_match.start()..start_offset + query_match.end();
8080 let display_range = offset_range.start.to_display_point(display_map)
8081 ..offset_range.end.to_display_point(display_map);
8082
8083 if !select_next_state.wordwise
8084 || (!movement::is_inside_word(display_map, display_range.start)
8085 && !movement::is_inside_word(display_map, display_range.end))
8086 {
8087 // TODO: This is n^2, because we might check all the selections
8088 if !selections
8089 .iter()
8090 .any(|selection| selection.range().overlaps(&offset_range))
8091 {
8092 next_selected_range = Some(offset_range);
8093 break;
8094 }
8095 }
8096 }
8097
8098 if let Some(next_selected_range) = next_selected_range {
8099 select_next_match_ranges(
8100 self,
8101 next_selected_range,
8102 replace_newest,
8103 autoscroll,
8104 cx,
8105 );
8106 } else {
8107 select_next_state.done = true;
8108 }
8109 }
8110
8111 self.select_next_state = Some(select_next_state);
8112 } else {
8113 let mut only_carets = true;
8114 let mut same_text_selected = true;
8115 let mut selected_text = None;
8116
8117 let mut selections_iter = selections.iter().peekable();
8118 while let Some(selection) = selections_iter.next() {
8119 if selection.start != selection.end {
8120 only_carets = false;
8121 }
8122
8123 if same_text_selected {
8124 if selected_text.is_none() {
8125 selected_text =
8126 Some(buffer.text_for_range(selection.range()).collect::<String>());
8127 }
8128
8129 if let Some(next_selection) = selections_iter.peek() {
8130 if next_selection.range().len() == selection.range().len() {
8131 let next_selected_text = buffer
8132 .text_for_range(next_selection.range())
8133 .collect::<String>();
8134 if Some(next_selected_text) != selected_text {
8135 same_text_selected = false;
8136 selected_text = None;
8137 }
8138 } else {
8139 same_text_selected = false;
8140 selected_text = None;
8141 }
8142 }
8143 }
8144 }
8145
8146 if only_carets {
8147 for selection in &mut selections {
8148 let word_range = movement::surrounding_word(
8149 display_map,
8150 selection.start.to_display_point(display_map),
8151 );
8152 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8153 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8154 selection.goal = SelectionGoal::None;
8155 selection.reversed = false;
8156 select_next_match_ranges(
8157 self,
8158 selection.start..selection.end,
8159 replace_newest,
8160 autoscroll,
8161 cx,
8162 );
8163 }
8164
8165 if selections.len() == 1 {
8166 let selection = selections
8167 .last()
8168 .expect("ensured that there's only one selection");
8169 let query = buffer
8170 .text_for_range(selection.start..selection.end)
8171 .collect::<String>();
8172 let is_empty = query.is_empty();
8173 let select_state = SelectNextState {
8174 query: AhoCorasick::new(&[query])?,
8175 wordwise: true,
8176 done: is_empty,
8177 };
8178 self.select_next_state = Some(select_state);
8179 } else {
8180 self.select_next_state = None;
8181 }
8182 } else if let Some(selected_text) = selected_text {
8183 self.select_next_state = Some(SelectNextState {
8184 query: AhoCorasick::new(&[selected_text])?,
8185 wordwise: false,
8186 done: false,
8187 });
8188 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8189 }
8190 }
8191 Ok(())
8192 }
8193
8194 pub fn select_all_matches(
8195 &mut self,
8196 _action: &SelectAllMatches,
8197 cx: &mut ViewContext<Self>,
8198 ) -> Result<()> {
8199 self.push_to_selection_history();
8200 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8201
8202 self.select_next_match_internal(&display_map, false, None, cx)?;
8203 let Some(select_next_state) = self.select_next_state.as_mut() else {
8204 return Ok(());
8205 };
8206 if select_next_state.done {
8207 return Ok(());
8208 }
8209
8210 let mut new_selections = self.selections.all::<usize>(cx);
8211
8212 let buffer = &display_map.buffer_snapshot;
8213 let query_matches = select_next_state
8214 .query
8215 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8216
8217 for query_match in query_matches {
8218 let query_match = query_match.unwrap(); // can only fail due to I/O
8219 let offset_range = query_match.start()..query_match.end();
8220 let display_range = offset_range.start.to_display_point(&display_map)
8221 ..offset_range.end.to_display_point(&display_map);
8222
8223 if !select_next_state.wordwise
8224 || (!movement::is_inside_word(&display_map, display_range.start)
8225 && !movement::is_inside_word(&display_map, display_range.end))
8226 {
8227 self.selections.change_with(cx, |selections| {
8228 new_selections.push(Selection {
8229 id: selections.new_selection_id(),
8230 start: offset_range.start,
8231 end: offset_range.end,
8232 reversed: false,
8233 goal: SelectionGoal::None,
8234 });
8235 });
8236 }
8237 }
8238
8239 new_selections.sort_by_key(|selection| selection.start);
8240 let mut ix = 0;
8241 while ix + 1 < new_selections.len() {
8242 let current_selection = &new_selections[ix];
8243 let next_selection = &new_selections[ix + 1];
8244 if current_selection.range().overlaps(&next_selection.range()) {
8245 if current_selection.id < next_selection.id {
8246 new_selections.remove(ix + 1);
8247 } else {
8248 new_selections.remove(ix);
8249 }
8250 } else {
8251 ix += 1;
8252 }
8253 }
8254
8255 select_next_state.done = true;
8256 self.unfold_ranges(
8257 &new_selections
8258 .iter()
8259 .map(|selection| selection.range())
8260 .collect::<Vec<_>>(),
8261 false,
8262 false,
8263 cx,
8264 );
8265 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8266 selections.select(new_selections)
8267 });
8268
8269 Ok(())
8270 }
8271
8272 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8273 self.push_to_selection_history();
8274 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8275 self.select_next_match_internal(
8276 &display_map,
8277 action.replace_newest,
8278 Some(Autoscroll::newest()),
8279 cx,
8280 )?;
8281 Ok(())
8282 }
8283
8284 pub fn select_previous(
8285 &mut self,
8286 action: &SelectPrevious,
8287 cx: &mut ViewContext<Self>,
8288 ) -> Result<()> {
8289 self.push_to_selection_history();
8290 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8291 let buffer = &display_map.buffer_snapshot;
8292 let mut selections = self.selections.all::<usize>(cx);
8293 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8294 let query = &select_prev_state.query;
8295 if !select_prev_state.done {
8296 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8297 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8298 let mut next_selected_range = None;
8299 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8300 let bytes_before_last_selection =
8301 buffer.reversed_bytes_in_range(0..last_selection.start);
8302 let bytes_after_first_selection =
8303 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8304 let query_matches = query
8305 .stream_find_iter(bytes_before_last_selection)
8306 .map(|result| (last_selection.start, result))
8307 .chain(
8308 query
8309 .stream_find_iter(bytes_after_first_selection)
8310 .map(|result| (buffer.len(), result)),
8311 );
8312 for (end_offset, query_match) in query_matches {
8313 let query_match = query_match.unwrap(); // can only fail due to I/O
8314 let offset_range =
8315 end_offset - query_match.end()..end_offset - query_match.start();
8316 let display_range = offset_range.start.to_display_point(&display_map)
8317 ..offset_range.end.to_display_point(&display_map);
8318
8319 if !select_prev_state.wordwise
8320 || (!movement::is_inside_word(&display_map, display_range.start)
8321 && !movement::is_inside_word(&display_map, display_range.end))
8322 {
8323 next_selected_range = Some(offset_range);
8324 break;
8325 }
8326 }
8327
8328 if let Some(next_selected_range) = next_selected_range {
8329 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8330 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8331 if action.replace_newest {
8332 s.delete(s.newest_anchor().id);
8333 }
8334 s.insert_range(next_selected_range);
8335 });
8336 } else {
8337 select_prev_state.done = true;
8338 }
8339 }
8340
8341 self.select_prev_state = Some(select_prev_state);
8342 } else {
8343 let mut only_carets = true;
8344 let mut same_text_selected = true;
8345 let mut selected_text = None;
8346
8347 let mut selections_iter = selections.iter().peekable();
8348 while let Some(selection) = selections_iter.next() {
8349 if selection.start != selection.end {
8350 only_carets = false;
8351 }
8352
8353 if same_text_selected {
8354 if selected_text.is_none() {
8355 selected_text =
8356 Some(buffer.text_for_range(selection.range()).collect::<String>());
8357 }
8358
8359 if let Some(next_selection) = selections_iter.peek() {
8360 if next_selection.range().len() == selection.range().len() {
8361 let next_selected_text = buffer
8362 .text_for_range(next_selection.range())
8363 .collect::<String>();
8364 if Some(next_selected_text) != selected_text {
8365 same_text_selected = false;
8366 selected_text = None;
8367 }
8368 } else {
8369 same_text_selected = false;
8370 selected_text = None;
8371 }
8372 }
8373 }
8374 }
8375
8376 if only_carets {
8377 for selection in &mut selections {
8378 let word_range = movement::surrounding_word(
8379 &display_map,
8380 selection.start.to_display_point(&display_map),
8381 );
8382 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8383 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8384 selection.goal = SelectionGoal::None;
8385 selection.reversed = false;
8386 }
8387 if selections.len() == 1 {
8388 let selection = selections
8389 .last()
8390 .expect("ensured that there's only one selection");
8391 let query = buffer
8392 .text_for_range(selection.start..selection.end)
8393 .collect::<String>();
8394 let is_empty = query.is_empty();
8395 let select_state = SelectNextState {
8396 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8397 wordwise: true,
8398 done: is_empty,
8399 };
8400 self.select_prev_state = Some(select_state);
8401 } else {
8402 self.select_prev_state = None;
8403 }
8404
8405 self.unfold_ranges(
8406 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8407 false,
8408 true,
8409 cx,
8410 );
8411 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8412 s.select(selections);
8413 });
8414 } else if let Some(selected_text) = selected_text {
8415 self.select_prev_state = Some(SelectNextState {
8416 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8417 wordwise: false,
8418 done: false,
8419 });
8420 self.select_previous(action, cx)?;
8421 }
8422 }
8423 Ok(())
8424 }
8425
8426 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8427 if self.read_only(cx) {
8428 return;
8429 }
8430 let text_layout_details = &self.text_layout_details(cx);
8431 self.transact(cx, |this, cx| {
8432 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8433 let mut edits = Vec::new();
8434 let mut selection_edit_ranges = Vec::new();
8435 let mut last_toggled_row = None;
8436 let snapshot = this.buffer.read(cx).read(cx);
8437 let empty_str: Arc<str> = Arc::default();
8438 let mut suffixes_inserted = Vec::new();
8439 let ignore_indent = action.ignore_indent;
8440
8441 fn comment_prefix_range(
8442 snapshot: &MultiBufferSnapshot,
8443 row: MultiBufferRow,
8444 comment_prefix: &str,
8445 comment_prefix_whitespace: &str,
8446 ignore_indent: bool,
8447 ) -> Range<Point> {
8448 let indent_size = if ignore_indent {
8449 0
8450 } else {
8451 snapshot.indent_size_for_line(row).len
8452 };
8453
8454 let start = Point::new(row.0, indent_size);
8455
8456 let mut line_bytes = snapshot
8457 .bytes_in_range(start..snapshot.max_point())
8458 .flatten()
8459 .copied();
8460
8461 // If this line currently begins with the line comment prefix, then record
8462 // the range containing the prefix.
8463 if line_bytes
8464 .by_ref()
8465 .take(comment_prefix.len())
8466 .eq(comment_prefix.bytes())
8467 {
8468 // Include any whitespace that matches the comment prefix.
8469 let matching_whitespace_len = line_bytes
8470 .zip(comment_prefix_whitespace.bytes())
8471 .take_while(|(a, b)| a == b)
8472 .count() as u32;
8473 let end = Point::new(
8474 start.row,
8475 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8476 );
8477 start..end
8478 } else {
8479 start..start
8480 }
8481 }
8482
8483 fn comment_suffix_range(
8484 snapshot: &MultiBufferSnapshot,
8485 row: MultiBufferRow,
8486 comment_suffix: &str,
8487 comment_suffix_has_leading_space: bool,
8488 ) -> Range<Point> {
8489 let end = Point::new(row.0, snapshot.line_len(row));
8490 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8491
8492 let mut line_end_bytes = snapshot
8493 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8494 .flatten()
8495 .copied();
8496
8497 let leading_space_len = if suffix_start_column > 0
8498 && line_end_bytes.next() == Some(b' ')
8499 && comment_suffix_has_leading_space
8500 {
8501 1
8502 } else {
8503 0
8504 };
8505
8506 // If this line currently begins with the line comment prefix, then record
8507 // the range containing the prefix.
8508 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8509 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8510 start..end
8511 } else {
8512 end..end
8513 }
8514 }
8515
8516 // TODO: Handle selections that cross excerpts
8517 for selection in &mut selections {
8518 let start_column = snapshot
8519 .indent_size_for_line(MultiBufferRow(selection.start.row))
8520 .len;
8521 let language = if let Some(language) =
8522 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8523 {
8524 language
8525 } else {
8526 continue;
8527 };
8528
8529 selection_edit_ranges.clear();
8530
8531 // If multiple selections contain a given row, avoid processing that
8532 // row more than once.
8533 let mut start_row = MultiBufferRow(selection.start.row);
8534 if last_toggled_row == Some(start_row) {
8535 start_row = start_row.next_row();
8536 }
8537 let end_row =
8538 if selection.end.row > selection.start.row && selection.end.column == 0 {
8539 MultiBufferRow(selection.end.row - 1)
8540 } else {
8541 MultiBufferRow(selection.end.row)
8542 };
8543 last_toggled_row = Some(end_row);
8544
8545 if start_row > end_row {
8546 continue;
8547 }
8548
8549 // If the language has line comments, toggle those.
8550 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8551
8552 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8553 if ignore_indent {
8554 full_comment_prefixes = full_comment_prefixes
8555 .into_iter()
8556 .map(|s| Arc::from(s.trim_end()))
8557 .collect();
8558 }
8559
8560 if !full_comment_prefixes.is_empty() {
8561 let first_prefix = full_comment_prefixes
8562 .first()
8563 .expect("prefixes is non-empty");
8564 let prefix_trimmed_lengths = full_comment_prefixes
8565 .iter()
8566 .map(|p| p.trim_end_matches(' ').len())
8567 .collect::<SmallVec<[usize; 4]>>();
8568
8569 let mut all_selection_lines_are_comments = true;
8570
8571 for row in start_row.0..=end_row.0 {
8572 let row = MultiBufferRow(row);
8573 if start_row < end_row && snapshot.is_line_blank(row) {
8574 continue;
8575 }
8576
8577 let prefix_range = full_comment_prefixes
8578 .iter()
8579 .zip(prefix_trimmed_lengths.iter().copied())
8580 .map(|(prefix, trimmed_prefix_len)| {
8581 comment_prefix_range(
8582 snapshot.deref(),
8583 row,
8584 &prefix[..trimmed_prefix_len],
8585 &prefix[trimmed_prefix_len..],
8586 ignore_indent,
8587 )
8588 })
8589 .max_by_key(|range| range.end.column - range.start.column)
8590 .expect("prefixes is non-empty");
8591
8592 if prefix_range.is_empty() {
8593 all_selection_lines_are_comments = false;
8594 }
8595
8596 selection_edit_ranges.push(prefix_range);
8597 }
8598
8599 if all_selection_lines_are_comments {
8600 edits.extend(
8601 selection_edit_ranges
8602 .iter()
8603 .cloned()
8604 .map(|range| (range, empty_str.clone())),
8605 );
8606 } else {
8607 let min_column = selection_edit_ranges
8608 .iter()
8609 .map(|range| range.start.column)
8610 .min()
8611 .unwrap_or(0);
8612 edits.extend(selection_edit_ranges.iter().map(|range| {
8613 let position = Point::new(range.start.row, min_column);
8614 (position..position, first_prefix.clone())
8615 }));
8616 }
8617 } else if let Some((full_comment_prefix, comment_suffix)) =
8618 language.block_comment_delimiters()
8619 {
8620 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8621 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8622 let prefix_range = comment_prefix_range(
8623 snapshot.deref(),
8624 start_row,
8625 comment_prefix,
8626 comment_prefix_whitespace,
8627 ignore_indent,
8628 );
8629 let suffix_range = comment_suffix_range(
8630 snapshot.deref(),
8631 end_row,
8632 comment_suffix.trim_start_matches(' '),
8633 comment_suffix.starts_with(' '),
8634 );
8635
8636 if prefix_range.is_empty() || suffix_range.is_empty() {
8637 edits.push((
8638 prefix_range.start..prefix_range.start,
8639 full_comment_prefix.clone(),
8640 ));
8641 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8642 suffixes_inserted.push((end_row, comment_suffix.len()));
8643 } else {
8644 edits.push((prefix_range, empty_str.clone()));
8645 edits.push((suffix_range, empty_str.clone()));
8646 }
8647 } else {
8648 continue;
8649 }
8650 }
8651
8652 drop(snapshot);
8653 this.buffer.update(cx, |buffer, cx| {
8654 buffer.edit(edits, None, cx);
8655 });
8656
8657 // Adjust selections so that they end before any comment suffixes that
8658 // were inserted.
8659 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8660 let mut selections = this.selections.all::<Point>(cx);
8661 let snapshot = this.buffer.read(cx).read(cx);
8662 for selection in &mut selections {
8663 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8664 match row.cmp(&MultiBufferRow(selection.end.row)) {
8665 Ordering::Less => {
8666 suffixes_inserted.next();
8667 continue;
8668 }
8669 Ordering::Greater => break,
8670 Ordering::Equal => {
8671 if selection.end.column == snapshot.line_len(row) {
8672 if selection.is_empty() {
8673 selection.start.column -= suffix_len as u32;
8674 }
8675 selection.end.column -= suffix_len as u32;
8676 }
8677 break;
8678 }
8679 }
8680 }
8681 }
8682
8683 drop(snapshot);
8684 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8685
8686 let selections = this.selections.all::<Point>(cx);
8687 let selections_on_single_row = selections.windows(2).all(|selections| {
8688 selections[0].start.row == selections[1].start.row
8689 && selections[0].end.row == selections[1].end.row
8690 && selections[0].start.row == selections[0].end.row
8691 });
8692 let selections_selecting = selections
8693 .iter()
8694 .any(|selection| selection.start != selection.end);
8695 let advance_downwards = action.advance_downwards
8696 && selections_on_single_row
8697 && !selections_selecting
8698 && !matches!(this.mode, EditorMode::SingleLine { .. });
8699
8700 if advance_downwards {
8701 let snapshot = this.buffer.read(cx).snapshot(cx);
8702
8703 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8704 s.move_cursors_with(|display_snapshot, display_point, _| {
8705 let mut point = display_point.to_point(display_snapshot);
8706 point.row += 1;
8707 point = snapshot.clip_point(point, Bias::Left);
8708 let display_point = point.to_display_point(display_snapshot);
8709 let goal = SelectionGoal::HorizontalPosition(
8710 display_snapshot
8711 .x_for_display_point(display_point, text_layout_details)
8712 .into(),
8713 );
8714 (display_point, goal)
8715 })
8716 });
8717 }
8718 });
8719 }
8720
8721 pub fn select_enclosing_symbol(
8722 &mut self,
8723 _: &SelectEnclosingSymbol,
8724 cx: &mut ViewContext<Self>,
8725 ) {
8726 let buffer = self.buffer.read(cx).snapshot(cx);
8727 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8728
8729 fn update_selection(
8730 selection: &Selection<usize>,
8731 buffer_snap: &MultiBufferSnapshot,
8732 ) -> Option<Selection<usize>> {
8733 let cursor = selection.head();
8734 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8735 for symbol in symbols.iter().rev() {
8736 let start = symbol.range.start.to_offset(buffer_snap);
8737 let end = symbol.range.end.to_offset(buffer_snap);
8738 let new_range = start..end;
8739 if start < selection.start || end > selection.end {
8740 return Some(Selection {
8741 id: selection.id,
8742 start: new_range.start,
8743 end: new_range.end,
8744 goal: SelectionGoal::None,
8745 reversed: selection.reversed,
8746 });
8747 }
8748 }
8749 None
8750 }
8751
8752 let mut selected_larger_symbol = false;
8753 let new_selections = old_selections
8754 .iter()
8755 .map(|selection| match update_selection(selection, &buffer) {
8756 Some(new_selection) => {
8757 if new_selection.range() != selection.range() {
8758 selected_larger_symbol = true;
8759 }
8760 new_selection
8761 }
8762 None => selection.clone(),
8763 })
8764 .collect::<Vec<_>>();
8765
8766 if selected_larger_symbol {
8767 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8768 s.select(new_selections);
8769 });
8770 }
8771 }
8772
8773 pub fn select_larger_syntax_node(
8774 &mut self,
8775 _: &SelectLargerSyntaxNode,
8776 cx: &mut ViewContext<Self>,
8777 ) {
8778 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8779 let buffer = self.buffer.read(cx).snapshot(cx);
8780 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8781
8782 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8783 let mut selected_larger_node = false;
8784 let new_selections = old_selections
8785 .iter()
8786 .map(|selection| {
8787 let old_range = selection.start..selection.end;
8788 let mut new_range = old_range.clone();
8789 let mut new_node = None;
8790 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8791 {
8792 new_node = Some(node);
8793 new_range = containing_range;
8794 if !display_map.intersects_fold(new_range.start)
8795 && !display_map.intersects_fold(new_range.end)
8796 {
8797 break;
8798 }
8799 }
8800
8801 if let Some(node) = new_node {
8802 // Log the ancestor, to support using this action as a way to explore TreeSitter
8803 // nodes. Parent and grandparent are also logged because this operation will not
8804 // visit nodes that have the same range as their parent.
8805 log::info!("Node: {node:?}");
8806 let parent = node.parent();
8807 log::info!("Parent: {parent:?}");
8808 let grandparent = parent.and_then(|x| x.parent());
8809 log::info!("Grandparent: {grandparent:?}");
8810 }
8811
8812 selected_larger_node |= new_range != old_range;
8813 Selection {
8814 id: selection.id,
8815 start: new_range.start,
8816 end: new_range.end,
8817 goal: SelectionGoal::None,
8818 reversed: selection.reversed,
8819 }
8820 })
8821 .collect::<Vec<_>>();
8822
8823 if selected_larger_node {
8824 stack.push(old_selections);
8825 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8826 s.select(new_selections);
8827 });
8828 }
8829 self.select_larger_syntax_node_stack = stack;
8830 }
8831
8832 pub fn select_smaller_syntax_node(
8833 &mut self,
8834 _: &SelectSmallerSyntaxNode,
8835 cx: &mut ViewContext<Self>,
8836 ) {
8837 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8838 if let Some(selections) = stack.pop() {
8839 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8840 s.select(selections.to_vec());
8841 });
8842 }
8843 self.select_larger_syntax_node_stack = stack;
8844 }
8845
8846 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8847 if !EditorSettings::get_global(cx).gutter.runnables {
8848 self.clear_tasks();
8849 return Task::ready(());
8850 }
8851 let project = self.project.as_ref().map(Model::downgrade);
8852 cx.spawn(|this, mut cx| async move {
8853 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8854 let Some(project) = project.and_then(|p| p.upgrade()) else {
8855 return;
8856 };
8857 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8858 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8859 }) else {
8860 return;
8861 };
8862
8863 let hide_runnables = project
8864 .update(&mut cx, |project, cx| {
8865 // Do not display any test indicators in non-dev server remote projects.
8866 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8867 })
8868 .unwrap_or(true);
8869 if hide_runnables {
8870 return;
8871 }
8872 let new_rows =
8873 cx.background_executor()
8874 .spawn({
8875 let snapshot = display_snapshot.clone();
8876 async move {
8877 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8878 }
8879 })
8880 .await;
8881 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8882
8883 this.update(&mut cx, |this, _| {
8884 this.clear_tasks();
8885 for (key, value) in rows {
8886 this.insert_tasks(key, value);
8887 }
8888 })
8889 .ok();
8890 })
8891 }
8892 fn fetch_runnable_ranges(
8893 snapshot: &DisplaySnapshot,
8894 range: Range<Anchor>,
8895 ) -> Vec<language::RunnableRange> {
8896 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8897 }
8898
8899 fn runnable_rows(
8900 project: Model<Project>,
8901 snapshot: DisplaySnapshot,
8902 runnable_ranges: Vec<RunnableRange>,
8903 mut cx: AsyncWindowContext,
8904 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8905 runnable_ranges
8906 .into_iter()
8907 .filter_map(|mut runnable| {
8908 let tasks = cx
8909 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8910 .ok()?;
8911 if tasks.is_empty() {
8912 return None;
8913 }
8914
8915 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8916
8917 let row = snapshot
8918 .buffer_snapshot
8919 .buffer_line_for_row(MultiBufferRow(point.row))?
8920 .1
8921 .start
8922 .row;
8923
8924 let context_range =
8925 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8926 Some((
8927 (runnable.buffer_id, row),
8928 RunnableTasks {
8929 templates: tasks,
8930 offset: MultiBufferOffset(runnable.run_range.start),
8931 context_range,
8932 column: point.column,
8933 extra_variables: runnable.extra_captures,
8934 },
8935 ))
8936 })
8937 .collect()
8938 }
8939
8940 fn templates_with_tags(
8941 project: &Model<Project>,
8942 runnable: &mut Runnable,
8943 cx: &WindowContext,
8944 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8945 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8946 let (worktree_id, file) = project
8947 .buffer_for_id(runnable.buffer, cx)
8948 .and_then(|buffer| buffer.read(cx).file())
8949 .map(|file| (file.worktree_id(cx), file.clone()))
8950 .unzip();
8951
8952 (
8953 project.task_store().read(cx).task_inventory().cloned(),
8954 worktree_id,
8955 file,
8956 )
8957 });
8958
8959 let tags = mem::take(&mut runnable.tags);
8960 let mut tags: Vec<_> = tags
8961 .into_iter()
8962 .flat_map(|tag| {
8963 let tag = tag.0.clone();
8964 inventory
8965 .as_ref()
8966 .into_iter()
8967 .flat_map(|inventory| {
8968 inventory.read(cx).list_tasks(
8969 file.clone(),
8970 Some(runnable.language.clone()),
8971 worktree_id,
8972 cx,
8973 )
8974 })
8975 .filter(move |(_, template)| {
8976 template.tags.iter().any(|source_tag| source_tag == &tag)
8977 })
8978 })
8979 .sorted_by_key(|(kind, _)| kind.to_owned())
8980 .collect();
8981 if let Some((leading_tag_source, _)) = tags.first() {
8982 // Strongest source wins; if we have worktree tag binding, prefer that to
8983 // global and language bindings;
8984 // if we have a global binding, prefer that to language binding.
8985 let first_mismatch = tags
8986 .iter()
8987 .position(|(tag_source, _)| tag_source != leading_tag_source);
8988 if let Some(index) = first_mismatch {
8989 tags.truncate(index);
8990 }
8991 }
8992
8993 tags
8994 }
8995
8996 pub fn move_to_enclosing_bracket(
8997 &mut self,
8998 _: &MoveToEnclosingBracket,
8999 cx: &mut ViewContext<Self>,
9000 ) {
9001 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9002 s.move_offsets_with(|snapshot, selection| {
9003 let Some(enclosing_bracket_ranges) =
9004 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9005 else {
9006 return;
9007 };
9008
9009 let mut best_length = usize::MAX;
9010 let mut best_inside = false;
9011 let mut best_in_bracket_range = false;
9012 let mut best_destination = None;
9013 for (open, close) in enclosing_bracket_ranges {
9014 let close = close.to_inclusive();
9015 let length = close.end() - open.start;
9016 let inside = selection.start >= open.end && selection.end <= *close.start();
9017 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9018 || close.contains(&selection.head());
9019
9020 // If best is next to a bracket and current isn't, skip
9021 if !in_bracket_range && best_in_bracket_range {
9022 continue;
9023 }
9024
9025 // Prefer smaller lengths unless best is inside and current isn't
9026 if length > best_length && (best_inside || !inside) {
9027 continue;
9028 }
9029
9030 best_length = length;
9031 best_inside = inside;
9032 best_in_bracket_range = in_bracket_range;
9033 best_destination = Some(
9034 if close.contains(&selection.start) && close.contains(&selection.end) {
9035 if inside {
9036 open.end
9037 } else {
9038 open.start
9039 }
9040 } else if inside {
9041 *close.start()
9042 } else {
9043 *close.end()
9044 },
9045 );
9046 }
9047
9048 if let Some(destination) = best_destination {
9049 selection.collapse_to(destination, SelectionGoal::None);
9050 }
9051 })
9052 });
9053 }
9054
9055 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9056 self.end_selection(cx);
9057 self.selection_history.mode = SelectionHistoryMode::Undoing;
9058 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9059 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9060 self.select_next_state = entry.select_next_state;
9061 self.select_prev_state = entry.select_prev_state;
9062 self.add_selections_state = entry.add_selections_state;
9063 self.request_autoscroll(Autoscroll::newest(), cx);
9064 }
9065 self.selection_history.mode = SelectionHistoryMode::Normal;
9066 }
9067
9068 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9069 self.end_selection(cx);
9070 self.selection_history.mode = SelectionHistoryMode::Redoing;
9071 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9072 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9073 self.select_next_state = entry.select_next_state;
9074 self.select_prev_state = entry.select_prev_state;
9075 self.add_selections_state = entry.add_selections_state;
9076 self.request_autoscroll(Autoscroll::newest(), cx);
9077 }
9078 self.selection_history.mode = SelectionHistoryMode::Normal;
9079 }
9080
9081 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9082 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9083 }
9084
9085 pub fn expand_excerpts_down(
9086 &mut self,
9087 action: &ExpandExcerptsDown,
9088 cx: &mut ViewContext<Self>,
9089 ) {
9090 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9091 }
9092
9093 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9094 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9095 }
9096
9097 pub fn expand_excerpts_for_direction(
9098 &mut self,
9099 lines: u32,
9100 direction: ExpandExcerptDirection,
9101 cx: &mut ViewContext<Self>,
9102 ) {
9103 let selections = self.selections.disjoint_anchors();
9104
9105 let lines = if lines == 0 {
9106 EditorSettings::get_global(cx).expand_excerpt_lines
9107 } else {
9108 lines
9109 };
9110
9111 self.buffer.update(cx, |buffer, cx| {
9112 let snapshot = buffer.snapshot(cx);
9113 let mut excerpt_ids = selections
9114 .iter()
9115 .flat_map(|selection| {
9116 snapshot
9117 .excerpts_for_range(selection.range())
9118 .map(|excerpt| excerpt.id())
9119 })
9120 .collect::<Vec<_>>();
9121 excerpt_ids.sort();
9122 excerpt_ids.dedup();
9123 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
9124 })
9125 }
9126
9127 pub fn expand_excerpt(
9128 &mut self,
9129 excerpt: ExcerptId,
9130 direction: ExpandExcerptDirection,
9131 cx: &mut ViewContext<Self>,
9132 ) {
9133 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9134 self.buffer.update(cx, |buffer, cx| {
9135 buffer.expand_excerpts([excerpt], lines, direction, cx)
9136 })
9137 }
9138
9139 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9140 self.go_to_diagnostic_impl(Direction::Next, cx)
9141 }
9142
9143 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9144 self.go_to_diagnostic_impl(Direction::Prev, cx)
9145 }
9146
9147 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9148 let buffer = self.buffer.read(cx).snapshot(cx);
9149 let selection = self.selections.newest::<usize>(cx);
9150
9151 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9152 if direction == Direction::Next {
9153 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9154 self.activate_diagnostics(popover.group_id(), cx);
9155 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9156 let primary_range_start = active_diagnostics.primary_range.start;
9157 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9158 let mut new_selection = s.newest_anchor().clone();
9159 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9160 s.select_anchors(vec![new_selection.clone()]);
9161 });
9162 }
9163 return;
9164 }
9165 }
9166
9167 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9168 active_diagnostics
9169 .primary_range
9170 .to_offset(&buffer)
9171 .to_inclusive()
9172 });
9173 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9174 if active_primary_range.contains(&selection.head()) {
9175 *active_primary_range.start()
9176 } else {
9177 selection.head()
9178 }
9179 } else {
9180 selection.head()
9181 };
9182 let snapshot = self.snapshot(cx);
9183 loop {
9184 let diagnostics = if direction == Direction::Prev {
9185 buffer
9186 .diagnostics_in_range(0..search_start, true)
9187 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9188 diagnostic,
9189 range: range.to_offset(&buffer),
9190 })
9191 .collect::<Vec<_>>()
9192 } else {
9193 buffer
9194 .diagnostics_in_range(search_start..buffer.len(), false)
9195 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9196 diagnostic,
9197 range: range.to_offset(&buffer),
9198 })
9199 .collect::<Vec<_>>()
9200 }
9201 .into_iter()
9202 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9203 let group = diagnostics
9204 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9205 // be sorted in a stable way
9206 // skip until we are at current active diagnostic, if it exists
9207 .skip_while(|entry| {
9208 (match direction {
9209 Direction::Prev => entry.range.start >= search_start,
9210 Direction::Next => entry.range.start <= search_start,
9211 }) && self
9212 .active_diagnostics
9213 .as_ref()
9214 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9215 })
9216 .find_map(|entry| {
9217 if entry.diagnostic.is_primary
9218 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9219 && !entry.range.is_empty()
9220 // if we match with the active diagnostic, skip it
9221 && Some(entry.diagnostic.group_id)
9222 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9223 {
9224 Some((entry.range, entry.diagnostic.group_id))
9225 } else {
9226 None
9227 }
9228 });
9229
9230 if let Some((primary_range, group_id)) = group {
9231 self.activate_diagnostics(group_id, cx);
9232 if self.active_diagnostics.is_some() {
9233 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9234 s.select(vec![Selection {
9235 id: selection.id,
9236 start: primary_range.start,
9237 end: primary_range.start,
9238 reversed: false,
9239 goal: SelectionGoal::None,
9240 }]);
9241 });
9242 }
9243 break;
9244 } else {
9245 // Cycle around to the start of the buffer, potentially moving back to the start of
9246 // the currently active diagnostic.
9247 active_primary_range.take();
9248 if direction == Direction::Prev {
9249 if search_start == buffer.len() {
9250 break;
9251 } else {
9252 search_start = buffer.len();
9253 }
9254 } else if search_start == 0 {
9255 break;
9256 } else {
9257 search_start = 0;
9258 }
9259 }
9260 }
9261 }
9262
9263 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9264 let snapshot = self.snapshot(cx);
9265 let selection = self.selections.newest::<Point>(cx);
9266 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9267 }
9268
9269 fn go_to_hunk_after_position(
9270 &mut self,
9271 snapshot: &EditorSnapshot,
9272 position: Point,
9273 cx: &mut ViewContext<Editor>,
9274 ) -> Option<MultiBufferDiffHunk> {
9275 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9276 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9277 snapshot,
9278 position,
9279 ix > 0,
9280 snapshot.diff_map.diff_hunks_in_range(
9281 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9282 &snapshot.buffer_snapshot,
9283 ),
9284 cx,
9285 ) {
9286 return Some(hunk);
9287 }
9288 }
9289 None
9290 }
9291
9292 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9293 let snapshot = self.snapshot(cx);
9294 let selection = self.selections.newest::<Point>(cx);
9295 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9296 }
9297
9298 fn go_to_hunk_before_position(
9299 &mut self,
9300 snapshot: &EditorSnapshot,
9301 position: Point,
9302 cx: &mut ViewContext<Editor>,
9303 ) -> Option<MultiBufferDiffHunk> {
9304 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9305 .into_iter()
9306 .enumerate()
9307 {
9308 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9309 snapshot,
9310 position,
9311 ix > 0,
9312 snapshot
9313 .diff_map
9314 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9315 cx,
9316 ) {
9317 return Some(hunk);
9318 }
9319 }
9320 None
9321 }
9322
9323 fn go_to_next_hunk_in_direction(
9324 &mut self,
9325 snapshot: &DisplaySnapshot,
9326 initial_point: Point,
9327 is_wrapped: bool,
9328 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9329 cx: &mut ViewContext<Editor>,
9330 ) -> Option<MultiBufferDiffHunk> {
9331 let display_point = initial_point.to_display_point(snapshot);
9332 let mut hunks = hunks
9333 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9334 .filter(|(display_hunk, _)| {
9335 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9336 })
9337 .dedup();
9338
9339 if let Some((display_hunk, hunk)) = hunks.next() {
9340 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9341 let row = display_hunk.start_display_row();
9342 let point = DisplayPoint::new(row, 0);
9343 s.select_display_ranges([point..point]);
9344 });
9345
9346 Some(hunk)
9347 } else {
9348 None
9349 }
9350 }
9351
9352 pub fn go_to_definition(
9353 &mut self,
9354 _: &GoToDefinition,
9355 cx: &mut ViewContext<Self>,
9356 ) -> Task<Result<Navigated>> {
9357 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9358 cx.spawn(|editor, mut cx| async move {
9359 if definition.await? == Navigated::Yes {
9360 return Ok(Navigated::Yes);
9361 }
9362 match editor.update(&mut cx, |editor, cx| {
9363 editor.find_all_references(&FindAllReferences, cx)
9364 })? {
9365 Some(references) => references.await,
9366 None => Ok(Navigated::No),
9367 }
9368 })
9369 }
9370
9371 pub fn go_to_declaration(
9372 &mut self,
9373 _: &GoToDeclaration,
9374 cx: &mut ViewContext<Self>,
9375 ) -> Task<Result<Navigated>> {
9376 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9377 }
9378
9379 pub fn go_to_declaration_split(
9380 &mut self,
9381 _: &GoToDeclaration,
9382 cx: &mut ViewContext<Self>,
9383 ) -> Task<Result<Navigated>> {
9384 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9385 }
9386
9387 pub fn go_to_implementation(
9388 &mut self,
9389 _: &GoToImplementation,
9390 cx: &mut ViewContext<Self>,
9391 ) -> Task<Result<Navigated>> {
9392 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9393 }
9394
9395 pub fn go_to_implementation_split(
9396 &mut self,
9397 _: &GoToImplementationSplit,
9398 cx: &mut ViewContext<Self>,
9399 ) -> Task<Result<Navigated>> {
9400 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9401 }
9402
9403 pub fn go_to_type_definition(
9404 &mut self,
9405 _: &GoToTypeDefinition,
9406 cx: &mut ViewContext<Self>,
9407 ) -> Task<Result<Navigated>> {
9408 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9409 }
9410
9411 pub fn go_to_definition_split(
9412 &mut self,
9413 _: &GoToDefinitionSplit,
9414 cx: &mut ViewContext<Self>,
9415 ) -> Task<Result<Navigated>> {
9416 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9417 }
9418
9419 pub fn go_to_type_definition_split(
9420 &mut self,
9421 _: &GoToTypeDefinitionSplit,
9422 cx: &mut ViewContext<Self>,
9423 ) -> Task<Result<Navigated>> {
9424 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9425 }
9426
9427 fn go_to_definition_of_kind(
9428 &mut self,
9429 kind: GotoDefinitionKind,
9430 split: bool,
9431 cx: &mut ViewContext<Self>,
9432 ) -> Task<Result<Navigated>> {
9433 let Some(provider) = self.semantics_provider.clone() else {
9434 return Task::ready(Ok(Navigated::No));
9435 };
9436 let head = self.selections.newest::<usize>(cx).head();
9437 let buffer = self.buffer.read(cx);
9438 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9439 text_anchor
9440 } else {
9441 return Task::ready(Ok(Navigated::No));
9442 };
9443
9444 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9445 return Task::ready(Ok(Navigated::No));
9446 };
9447
9448 cx.spawn(|editor, mut cx| async move {
9449 let definitions = definitions.await?;
9450 let navigated = editor
9451 .update(&mut cx, |editor, cx| {
9452 editor.navigate_to_hover_links(
9453 Some(kind),
9454 definitions
9455 .into_iter()
9456 .filter(|location| {
9457 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9458 })
9459 .map(HoverLink::Text)
9460 .collect::<Vec<_>>(),
9461 split,
9462 cx,
9463 )
9464 })?
9465 .await?;
9466 anyhow::Ok(navigated)
9467 })
9468 }
9469
9470 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9471 let selection = self.selections.newest_anchor();
9472 let head = selection.head();
9473 let tail = selection.tail();
9474
9475 let Some((buffer, start_position)) =
9476 self.buffer.read(cx).text_anchor_for_position(head, cx)
9477 else {
9478 return;
9479 };
9480
9481 let end_position = if head != tail {
9482 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9483 return;
9484 };
9485 Some(pos)
9486 } else {
9487 None
9488 };
9489
9490 let url_finder = cx.spawn(|editor, mut cx| async move {
9491 let url = if let Some(end_pos) = end_position {
9492 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9493 } else {
9494 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9495 };
9496
9497 if let Some(url) = url {
9498 editor.update(&mut cx, |_, cx| {
9499 cx.open_url(&url);
9500 })
9501 } else {
9502 Ok(())
9503 }
9504 });
9505
9506 url_finder.detach();
9507 }
9508
9509 pub fn open_selected_filename(&mut self, _: &OpenSelectedFilename, cx: &mut ViewContext<Self>) {
9510 let Some(workspace) = self.workspace() else {
9511 return;
9512 };
9513
9514 let position = self.selections.newest_anchor().head();
9515
9516 let Some((buffer, buffer_position)) =
9517 self.buffer.read(cx).text_anchor_for_position(position, cx)
9518 else {
9519 return;
9520 };
9521
9522 let project = self.project.clone();
9523
9524 cx.spawn(|_, mut cx| async move {
9525 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9526
9527 if let Some((_, path)) = result {
9528 workspace
9529 .update(&mut cx, |workspace, cx| {
9530 workspace.open_resolved_path(path, cx)
9531 })?
9532 .await?;
9533 }
9534 anyhow::Ok(())
9535 })
9536 .detach();
9537 }
9538
9539 pub(crate) fn navigate_to_hover_links(
9540 &mut self,
9541 kind: Option<GotoDefinitionKind>,
9542 mut definitions: Vec<HoverLink>,
9543 split: bool,
9544 cx: &mut ViewContext<Editor>,
9545 ) -> Task<Result<Navigated>> {
9546 // If there is one definition, just open it directly
9547 if definitions.len() == 1 {
9548 let definition = definitions.pop().unwrap();
9549
9550 enum TargetTaskResult {
9551 Location(Option<Location>),
9552 AlreadyNavigated,
9553 }
9554
9555 let target_task = match definition {
9556 HoverLink::Text(link) => {
9557 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9558 }
9559 HoverLink::InlayHint(lsp_location, server_id) => {
9560 let computation = self.compute_target_location(lsp_location, server_id, cx);
9561 cx.background_executor().spawn(async move {
9562 let location = computation.await?;
9563 Ok(TargetTaskResult::Location(location))
9564 })
9565 }
9566 HoverLink::Url(url) => {
9567 cx.open_url(&url);
9568 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9569 }
9570 HoverLink::File(path) => {
9571 if let Some(workspace) = self.workspace() {
9572 cx.spawn(|_, mut cx| async move {
9573 workspace
9574 .update(&mut cx, |workspace, cx| {
9575 workspace.open_resolved_path(path, cx)
9576 })?
9577 .await
9578 .map(|_| TargetTaskResult::AlreadyNavigated)
9579 })
9580 } else {
9581 Task::ready(Ok(TargetTaskResult::Location(None)))
9582 }
9583 }
9584 };
9585 cx.spawn(|editor, mut cx| async move {
9586 let target = match target_task.await.context("target resolution task")? {
9587 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9588 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9589 TargetTaskResult::Location(Some(target)) => target,
9590 };
9591
9592 editor.update(&mut cx, |editor, cx| {
9593 let Some(workspace) = editor.workspace() else {
9594 return Navigated::No;
9595 };
9596 let pane = workspace.read(cx).active_pane().clone();
9597
9598 let range = target.range.to_offset(target.buffer.read(cx));
9599 let range = editor.range_for_match(&range);
9600
9601 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9602 let buffer = target.buffer.read(cx);
9603 let range = check_multiline_range(buffer, range);
9604 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9605 s.select_ranges([range]);
9606 });
9607 } else {
9608 cx.window_context().defer(move |cx| {
9609 let target_editor: View<Self> =
9610 workspace.update(cx, |workspace, cx| {
9611 let pane = if split {
9612 workspace.adjacent_pane(cx)
9613 } else {
9614 workspace.active_pane().clone()
9615 };
9616
9617 workspace.open_project_item(
9618 pane,
9619 target.buffer.clone(),
9620 true,
9621 true,
9622 cx,
9623 )
9624 });
9625 target_editor.update(cx, |target_editor, cx| {
9626 // When selecting a definition in a different buffer, disable the nav history
9627 // to avoid creating a history entry at the previous cursor location.
9628 pane.update(cx, |pane, _| pane.disable_history());
9629 let buffer = target.buffer.read(cx);
9630 let range = check_multiline_range(buffer, range);
9631 target_editor.change_selections(
9632 Some(Autoscroll::focused()),
9633 cx,
9634 |s| {
9635 s.select_ranges([range]);
9636 },
9637 );
9638 pane.update(cx, |pane, _| pane.enable_history());
9639 });
9640 });
9641 }
9642 Navigated::Yes
9643 })
9644 })
9645 } else if !definitions.is_empty() {
9646 cx.spawn(|editor, mut cx| async move {
9647 let (title, location_tasks, workspace) = editor
9648 .update(&mut cx, |editor, cx| {
9649 let tab_kind = match kind {
9650 Some(GotoDefinitionKind::Implementation) => "Implementations",
9651 _ => "Definitions",
9652 };
9653 let title = definitions
9654 .iter()
9655 .find_map(|definition| match definition {
9656 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9657 let buffer = origin.buffer.read(cx);
9658 format!(
9659 "{} for {}",
9660 tab_kind,
9661 buffer
9662 .text_for_range(origin.range.clone())
9663 .collect::<String>()
9664 )
9665 }),
9666 HoverLink::InlayHint(_, _) => None,
9667 HoverLink::Url(_) => None,
9668 HoverLink::File(_) => None,
9669 })
9670 .unwrap_or(tab_kind.to_string());
9671 let location_tasks = definitions
9672 .into_iter()
9673 .map(|definition| match definition {
9674 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9675 HoverLink::InlayHint(lsp_location, server_id) => {
9676 editor.compute_target_location(lsp_location, server_id, cx)
9677 }
9678 HoverLink::Url(_) => Task::ready(Ok(None)),
9679 HoverLink::File(_) => Task::ready(Ok(None)),
9680 })
9681 .collect::<Vec<_>>();
9682 (title, location_tasks, editor.workspace().clone())
9683 })
9684 .context("location tasks preparation")?;
9685
9686 let locations = future::join_all(location_tasks)
9687 .await
9688 .into_iter()
9689 .filter_map(|location| location.transpose())
9690 .collect::<Result<_>>()
9691 .context("location tasks")?;
9692
9693 let Some(workspace) = workspace else {
9694 return Ok(Navigated::No);
9695 };
9696 let opened = workspace
9697 .update(&mut cx, |workspace, cx| {
9698 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9699 })
9700 .ok();
9701
9702 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9703 })
9704 } else {
9705 Task::ready(Ok(Navigated::No))
9706 }
9707 }
9708
9709 fn compute_target_location(
9710 &self,
9711 lsp_location: lsp::Location,
9712 server_id: LanguageServerId,
9713 cx: &mut ViewContext<Self>,
9714 ) -> Task<anyhow::Result<Option<Location>>> {
9715 let Some(project) = self.project.clone() else {
9716 return Task::ready(Ok(None));
9717 };
9718
9719 cx.spawn(move |editor, mut cx| async move {
9720 let location_task = editor.update(&mut cx, |_, cx| {
9721 project.update(cx, |project, cx| {
9722 let language_server_name = project
9723 .language_server_statuses(cx)
9724 .find(|(id, _)| server_id == *id)
9725 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9726 language_server_name.map(|language_server_name| {
9727 project.open_local_buffer_via_lsp(
9728 lsp_location.uri.clone(),
9729 server_id,
9730 language_server_name,
9731 cx,
9732 )
9733 })
9734 })
9735 })?;
9736 let location = match location_task {
9737 Some(task) => Some({
9738 let target_buffer_handle = task.await.context("open local buffer")?;
9739 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9740 let target_start = target_buffer
9741 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9742 let target_end = target_buffer
9743 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9744 target_buffer.anchor_after(target_start)
9745 ..target_buffer.anchor_before(target_end)
9746 })?;
9747 Location {
9748 buffer: target_buffer_handle,
9749 range,
9750 }
9751 }),
9752 None => None,
9753 };
9754 Ok(location)
9755 })
9756 }
9757
9758 pub fn find_all_references(
9759 &mut self,
9760 _: &FindAllReferences,
9761 cx: &mut ViewContext<Self>,
9762 ) -> Option<Task<Result<Navigated>>> {
9763 let selection = self.selections.newest::<usize>(cx);
9764 let multi_buffer = self.buffer.read(cx);
9765 let head = selection.head();
9766
9767 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9768 let head_anchor = multi_buffer_snapshot.anchor_at(
9769 head,
9770 if head < selection.tail() {
9771 Bias::Right
9772 } else {
9773 Bias::Left
9774 },
9775 );
9776
9777 match self
9778 .find_all_references_task_sources
9779 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9780 {
9781 Ok(_) => {
9782 log::info!(
9783 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9784 );
9785 return None;
9786 }
9787 Err(i) => {
9788 self.find_all_references_task_sources.insert(i, head_anchor);
9789 }
9790 }
9791
9792 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9793 let workspace = self.workspace()?;
9794 let project = workspace.read(cx).project().clone();
9795 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9796 Some(cx.spawn(|editor, mut cx| async move {
9797 let _cleanup = defer({
9798 let mut cx = cx.clone();
9799 move || {
9800 let _ = editor.update(&mut cx, |editor, _| {
9801 if let Ok(i) =
9802 editor
9803 .find_all_references_task_sources
9804 .binary_search_by(|anchor| {
9805 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9806 })
9807 {
9808 editor.find_all_references_task_sources.remove(i);
9809 }
9810 });
9811 }
9812 });
9813
9814 let locations = references.await?;
9815 if locations.is_empty() {
9816 return anyhow::Ok(Navigated::No);
9817 }
9818
9819 workspace.update(&mut cx, |workspace, cx| {
9820 let title = locations
9821 .first()
9822 .as_ref()
9823 .map(|location| {
9824 let buffer = location.buffer.read(cx);
9825 format!(
9826 "References to `{}`",
9827 buffer
9828 .text_for_range(location.range.clone())
9829 .collect::<String>()
9830 )
9831 })
9832 .unwrap();
9833 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9834 Navigated::Yes
9835 })
9836 }))
9837 }
9838
9839 /// Opens a multibuffer with the given project locations in it
9840 pub fn open_locations_in_multibuffer(
9841 workspace: &mut Workspace,
9842 mut locations: Vec<Location>,
9843 title: String,
9844 split: bool,
9845 cx: &mut ViewContext<Workspace>,
9846 ) {
9847 // If there are multiple definitions, open them in a multibuffer
9848 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9849 let mut locations = locations.into_iter().peekable();
9850 let mut ranges_to_highlight = Vec::new();
9851 let capability = workspace.project().read(cx).capability();
9852
9853 let excerpt_buffer = cx.new_model(|cx| {
9854 let mut multibuffer = MultiBuffer::new(capability);
9855 while let Some(location) = locations.next() {
9856 let buffer = location.buffer.read(cx);
9857 let mut ranges_for_buffer = Vec::new();
9858 let range = location.range.to_offset(buffer);
9859 ranges_for_buffer.push(range.clone());
9860
9861 while let Some(next_location) = locations.peek() {
9862 if next_location.buffer == location.buffer {
9863 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9864 locations.next();
9865 } else {
9866 break;
9867 }
9868 }
9869
9870 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9871 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9872 location.buffer.clone(),
9873 ranges_for_buffer,
9874 DEFAULT_MULTIBUFFER_CONTEXT,
9875 cx,
9876 ))
9877 }
9878
9879 multibuffer.with_title(title)
9880 });
9881
9882 let editor = cx.new_view(|cx| {
9883 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9884 });
9885 editor.update(cx, |editor, cx| {
9886 if let Some(first_range) = ranges_to_highlight.first() {
9887 editor.change_selections(None, cx, |selections| {
9888 selections.clear_disjoint();
9889 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9890 });
9891 }
9892 editor.highlight_background::<Self>(
9893 &ranges_to_highlight,
9894 |theme| theme.editor_highlighted_line_background,
9895 cx,
9896 );
9897 editor.register_buffers_with_language_servers(cx);
9898 });
9899
9900 let item = Box::new(editor);
9901 let item_id = item.item_id();
9902
9903 if split {
9904 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9905 } else {
9906 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9907 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9908 pane.close_current_preview_item(cx)
9909 } else {
9910 None
9911 }
9912 });
9913 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9914 }
9915 workspace.active_pane().update(cx, |pane, cx| {
9916 pane.set_preview_item_id(Some(item_id), cx);
9917 });
9918 }
9919
9920 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9921 use language::ToOffset as _;
9922
9923 let provider = self.semantics_provider.clone()?;
9924 let selection = self.selections.newest_anchor().clone();
9925 let (cursor_buffer, cursor_buffer_position) = self
9926 .buffer
9927 .read(cx)
9928 .text_anchor_for_position(selection.head(), cx)?;
9929 let (tail_buffer, cursor_buffer_position_end) = self
9930 .buffer
9931 .read(cx)
9932 .text_anchor_for_position(selection.tail(), cx)?;
9933 if tail_buffer != cursor_buffer {
9934 return None;
9935 }
9936
9937 let snapshot = cursor_buffer.read(cx).snapshot();
9938 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9939 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9940 let prepare_rename = provider
9941 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9942 .unwrap_or_else(|| Task::ready(Ok(None)));
9943 drop(snapshot);
9944
9945 Some(cx.spawn(|this, mut cx| async move {
9946 let rename_range = if let Some(range) = prepare_rename.await? {
9947 Some(range)
9948 } else {
9949 this.update(&mut cx, |this, cx| {
9950 let buffer = this.buffer.read(cx).snapshot(cx);
9951 let mut buffer_highlights = this
9952 .document_highlights_for_position(selection.head(), &buffer)
9953 .filter(|highlight| {
9954 highlight.start.excerpt_id == selection.head().excerpt_id
9955 && highlight.end.excerpt_id == selection.head().excerpt_id
9956 });
9957 buffer_highlights
9958 .next()
9959 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9960 })?
9961 };
9962 if let Some(rename_range) = rename_range {
9963 this.update(&mut cx, |this, cx| {
9964 let snapshot = cursor_buffer.read(cx).snapshot();
9965 let rename_buffer_range = rename_range.to_offset(&snapshot);
9966 let cursor_offset_in_rename_range =
9967 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9968 let cursor_offset_in_rename_range_end =
9969 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9970
9971 this.take_rename(false, cx);
9972 let buffer = this.buffer.read(cx).read(cx);
9973 let cursor_offset = selection.head().to_offset(&buffer);
9974 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9975 let rename_end = rename_start + rename_buffer_range.len();
9976 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9977 let mut old_highlight_id = None;
9978 let old_name: Arc<str> = buffer
9979 .chunks(rename_start..rename_end, true)
9980 .map(|chunk| {
9981 if old_highlight_id.is_none() {
9982 old_highlight_id = chunk.syntax_highlight_id;
9983 }
9984 chunk.text
9985 })
9986 .collect::<String>()
9987 .into();
9988
9989 drop(buffer);
9990
9991 // Position the selection in the rename editor so that it matches the current selection.
9992 this.show_local_selections = false;
9993 let rename_editor = cx.new_view(|cx| {
9994 let mut editor = Editor::single_line(cx);
9995 editor.buffer.update(cx, |buffer, cx| {
9996 buffer.edit([(0..0, old_name.clone())], None, cx)
9997 });
9998 let rename_selection_range = match cursor_offset_in_rename_range
9999 .cmp(&cursor_offset_in_rename_range_end)
10000 {
10001 Ordering::Equal => {
10002 editor.select_all(&SelectAll, cx);
10003 return editor;
10004 }
10005 Ordering::Less => {
10006 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10007 }
10008 Ordering::Greater => {
10009 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10010 }
10011 };
10012 if rename_selection_range.end > old_name.len() {
10013 editor.select_all(&SelectAll, cx);
10014 } else {
10015 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10016 s.select_ranges([rename_selection_range]);
10017 });
10018 }
10019 editor
10020 });
10021 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10022 if e == &EditorEvent::Focused {
10023 cx.emit(EditorEvent::FocusedIn)
10024 }
10025 })
10026 .detach();
10027
10028 let write_highlights =
10029 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10030 let read_highlights =
10031 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10032 let ranges = write_highlights
10033 .iter()
10034 .flat_map(|(_, ranges)| ranges.iter())
10035 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10036 .cloned()
10037 .collect();
10038
10039 this.highlight_text::<Rename>(
10040 ranges,
10041 HighlightStyle {
10042 fade_out: Some(0.6),
10043 ..Default::default()
10044 },
10045 cx,
10046 );
10047 let rename_focus_handle = rename_editor.focus_handle(cx);
10048 cx.focus(&rename_focus_handle);
10049 let block_id = this.insert_blocks(
10050 [BlockProperties {
10051 style: BlockStyle::Flex,
10052 placement: BlockPlacement::Below(range.start),
10053 height: 1,
10054 render: Arc::new({
10055 let rename_editor = rename_editor.clone();
10056 move |cx: &mut BlockContext| {
10057 let mut text_style = cx.editor_style.text.clone();
10058 if let Some(highlight_style) = old_highlight_id
10059 .and_then(|h| h.style(&cx.editor_style.syntax))
10060 {
10061 text_style = text_style.highlight(highlight_style);
10062 }
10063 div()
10064 .block_mouse_down()
10065 .pl(cx.anchor_x)
10066 .child(EditorElement::new(
10067 &rename_editor,
10068 EditorStyle {
10069 background: cx.theme().system().transparent,
10070 local_player: cx.editor_style.local_player,
10071 text: text_style,
10072 scrollbar_width: cx.editor_style.scrollbar_width,
10073 syntax: cx.editor_style.syntax.clone(),
10074 status: cx.editor_style.status.clone(),
10075 inlay_hints_style: HighlightStyle {
10076 font_weight: Some(FontWeight::BOLD),
10077 ..make_inlay_hints_style(cx)
10078 },
10079 inline_completion_styles: make_suggestion_styles(
10080 cx,
10081 ),
10082 ..EditorStyle::default()
10083 },
10084 ))
10085 .into_any_element()
10086 }
10087 }),
10088 priority: 0,
10089 }],
10090 Some(Autoscroll::fit()),
10091 cx,
10092 )[0];
10093 this.pending_rename = Some(RenameState {
10094 range,
10095 old_name,
10096 editor: rename_editor,
10097 block_id,
10098 });
10099 })?;
10100 }
10101
10102 Ok(())
10103 }))
10104 }
10105
10106 pub fn confirm_rename(
10107 &mut self,
10108 _: &ConfirmRename,
10109 cx: &mut ViewContext<Self>,
10110 ) -> Option<Task<Result<()>>> {
10111 let rename = self.take_rename(false, cx)?;
10112 let workspace = self.workspace()?.downgrade();
10113 let (buffer, start) = self
10114 .buffer
10115 .read(cx)
10116 .text_anchor_for_position(rename.range.start, cx)?;
10117 let (end_buffer, _) = self
10118 .buffer
10119 .read(cx)
10120 .text_anchor_for_position(rename.range.end, cx)?;
10121 if buffer != end_buffer {
10122 return None;
10123 }
10124
10125 let old_name = rename.old_name;
10126 let new_name = rename.editor.read(cx).text(cx);
10127
10128 let rename = self.semantics_provider.as_ref()?.perform_rename(
10129 &buffer,
10130 start,
10131 new_name.clone(),
10132 cx,
10133 )?;
10134
10135 Some(cx.spawn(|editor, mut cx| async move {
10136 let project_transaction = rename.await?;
10137 Self::open_project_transaction(
10138 &editor,
10139 workspace,
10140 project_transaction,
10141 format!("Rename: {} → {}", old_name, new_name),
10142 cx.clone(),
10143 )
10144 .await?;
10145
10146 editor.update(&mut cx, |editor, cx| {
10147 editor.refresh_document_highlights(cx);
10148 })?;
10149 Ok(())
10150 }))
10151 }
10152
10153 fn take_rename(
10154 &mut self,
10155 moving_cursor: bool,
10156 cx: &mut ViewContext<Self>,
10157 ) -> Option<RenameState> {
10158 let rename = self.pending_rename.take()?;
10159 if rename.editor.focus_handle(cx).is_focused(cx) {
10160 cx.focus(&self.focus_handle);
10161 }
10162
10163 self.remove_blocks(
10164 [rename.block_id].into_iter().collect(),
10165 Some(Autoscroll::fit()),
10166 cx,
10167 );
10168 self.clear_highlights::<Rename>(cx);
10169 self.show_local_selections = true;
10170
10171 if moving_cursor {
10172 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10173 editor.selections.newest::<usize>(cx).head()
10174 });
10175
10176 // Update the selection to match the position of the selection inside
10177 // the rename editor.
10178 let snapshot = self.buffer.read(cx).read(cx);
10179 let rename_range = rename.range.to_offset(&snapshot);
10180 let cursor_in_editor = snapshot
10181 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10182 .min(rename_range.end);
10183 drop(snapshot);
10184
10185 self.change_selections(None, cx, |s| {
10186 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10187 });
10188 } else {
10189 self.refresh_document_highlights(cx);
10190 }
10191
10192 Some(rename)
10193 }
10194
10195 pub fn pending_rename(&self) -> Option<&RenameState> {
10196 self.pending_rename.as_ref()
10197 }
10198
10199 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10200 let project = match &self.project {
10201 Some(project) => project.clone(),
10202 None => return None,
10203 };
10204
10205 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10206 }
10207
10208 fn format_selections(
10209 &mut self,
10210 _: &FormatSelections,
10211 cx: &mut ViewContext<Self>,
10212 ) -> Option<Task<Result<()>>> {
10213 let project = match &self.project {
10214 Some(project) => project.clone(),
10215 None => return None,
10216 };
10217
10218 let selections = self
10219 .selections
10220 .all_adjusted(cx)
10221 .into_iter()
10222 .filter(|s| !s.is_empty())
10223 .collect_vec();
10224
10225 Some(self.perform_format(
10226 project,
10227 FormatTrigger::Manual,
10228 FormatTarget::Ranges(selections),
10229 cx,
10230 ))
10231 }
10232
10233 fn perform_format(
10234 &mut self,
10235 project: Model<Project>,
10236 trigger: FormatTrigger,
10237 target: FormatTarget,
10238 cx: &mut ViewContext<Self>,
10239 ) -> Task<Result<()>> {
10240 let buffer = self.buffer().clone();
10241 let mut buffers = buffer.read(cx).all_buffers();
10242 if trigger == FormatTrigger::Save {
10243 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10244 }
10245
10246 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10247 let format = project.update(cx, |project, cx| {
10248 project.format(buffers, true, trigger, target, cx)
10249 });
10250
10251 cx.spawn(|_, mut cx| async move {
10252 let transaction = futures::select_biased! {
10253 () = timeout => {
10254 log::warn!("timed out waiting for formatting");
10255 None
10256 }
10257 transaction = format.log_err().fuse() => transaction,
10258 };
10259
10260 buffer
10261 .update(&mut cx, |buffer, cx| {
10262 if let Some(transaction) = transaction {
10263 if !buffer.is_singleton() {
10264 buffer.push_transaction(&transaction.0, cx);
10265 }
10266 }
10267
10268 cx.notify();
10269 })
10270 .ok();
10271
10272 Ok(())
10273 })
10274 }
10275
10276 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10277 if let Some(project) = self.project.clone() {
10278 self.buffer.update(cx, |multi_buffer, cx| {
10279 project.update(cx, |project, cx| {
10280 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10281 });
10282 })
10283 }
10284 }
10285
10286 fn cancel_language_server_work(
10287 &mut self,
10288 _: &actions::CancelLanguageServerWork,
10289 cx: &mut ViewContext<Self>,
10290 ) {
10291 if let Some(project) = self.project.clone() {
10292 self.buffer.update(cx, |multi_buffer, cx| {
10293 project.update(cx, |project, cx| {
10294 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10295 });
10296 })
10297 }
10298 }
10299
10300 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10301 cx.show_character_palette();
10302 }
10303
10304 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10305 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10306 let buffer = self.buffer.read(cx).snapshot(cx);
10307 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10308 let is_valid = buffer
10309 .diagnostics_in_range(active_diagnostics.primary_range.clone(), false)
10310 .any(|entry| {
10311 let range = entry.range.to_offset(&buffer);
10312 entry.diagnostic.is_primary
10313 && !range.is_empty()
10314 && range.start == primary_range_start
10315 && entry.diagnostic.message == active_diagnostics.primary_message
10316 });
10317
10318 if is_valid != active_diagnostics.is_valid {
10319 active_diagnostics.is_valid = is_valid;
10320 let mut new_styles = HashMap::default();
10321 for (block_id, diagnostic) in &active_diagnostics.blocks {
10322 new_styles.insert(
10323 *block_id,
10324 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10325 );
10326 }
10327 self.display_map.update(cx, |display_map, _cx| {
10328 display_map.replace_blocks(new_styles)
10329 });
10330 }
10331 }
10332 }
10333
10334 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
10335 self.dismiss_diagnostics(cx);
10336 let snapshot = self.snapshot(cx);
10337 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10338 let buffer = self.buffer.read(cx).snapshot(cx);
10339
10340 let mut primary_range = None;
10341 let mut primary_message = None;
10342 let mut group_end = Point::zero();
10343 let diagnostic_group = buffer
10344 .diagnostic_group(group_id)
10345 .filter_map(|entry| {
10346 let start = entry.range.start.to_point(&buffer);
10347 let end = entry.range.end.to_point(&buffer);
10348 if snapshot.is_line_folded(MultiBufferRow(start.row))
10349 && (start.row == end.row
10350 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10351 {
10352 return None;
10353 }
10354 if end > group_end {
10355 group_end = end;
10356 }
10357 if entry.diagnostic.is_primary {
10358 primary_range = Some(entry.range.clone());
10359 primary_message = Some(entry.diagnostic.message.clone());
10360 }
10361 Some(entry)
10362 })
10363 .collect::<Vec<_>>();
10364 let primary_range = primary_range?;
10365 let primary_message = primary_message?;
10366
10367 let blocks = display_map
10368 .insert_blocks(
10369 diagnostic_group.iter().map(|entry| {
10370 let diagnostic = entry.diagnostic.clone();
10371 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10372 BlockProperties {
10373 style: BlockStyle::Fixed,
10374 placement: BlockPlacement::Below(
10375 buffer.anchor_after(entry.range.start),
10376 ),
10377 height: message_height,
10378 render: diagnostic_block_renderer(diagnostic, None, true, true),
10379 priority: 0,
10380 }
10381 }),
10382 cx,
10383 )
10384 .into_iter()
10385 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10386 .collect();
10387
10388 Some(ActiveDiagnosticGroup {
10389 primary_range,
10390 primary_message,
10391 group_id,
10392 blocks,
10393 is_valid: true,
10394 })
10395 });
10396 }
10397
10398 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10399 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10400 self.display_map.update(cx, |display_map, cx| {
10401 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10402 });
10403 cx.notify();
10404 }
10405 }
10406
10407 pub fn set_selections_from_remote(
10408 &mut self,
10409 selections: Vec<Selection<Anchor>>,
10410 pending_selection: Option<Selection<Anchor>>,
10411 cx: &mut ViewContext<Self>,
10412 ) {
10413 let old_cursor_position = self.selections.newest_anchor().head();
10414 self.selections.change_with(cx, |s| {
10415 s.select_anchors(selections);
10416 if let Some(pending_selection) = pending_selection {
10417 s.set_pending(pending_selection, SelectMode::Character);
10418 } else {
10419 s.clear_pending();
10420 }
10421 });
10422 self.selections_did_change(false, &old_cursor_position, true, cx);
10423 }
10424
10425 fn push_to_selection_history(&mut self) {
10426 self.selection_history.push(SelectionHistoryEntry {
10427 selections: self.selections.disjoint_anchors(),
10428 select_next_state: self.select_next_state.clone(),
10429 select_prev_state: self.select_prev_state.clone(),
10430 add_selections_state: self.add_selections_state.clone(),
10431 });
10432 }
10433
10434 pub fn transact(
10435 &mut self,
10436 cx: &mut ViewContext<Self>,
10437 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10438 ) -> Option<TransactionId> {
10439 self.start_transaction_at(Instant::now(), cx);
10440 update(self, cx);
10441 self.end_transaction_at(Instant::now(), cx)
10442 }
10443
10444 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10445 self.end_selection(cx);
10446 if let Some(tx_id) = self
10447 .buffer
10448 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10449 {
10450 self.selection_history
10451 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10452 cx.emit(EditorEvent::TransactionBegun {
10453 transaction_id: tx_id,
10454 })
10455 }
10456 }
10457
10458 pub fn end_transaction_at(
10459 &mut self,
10460 now: Instant,
10461 cx: &mut ViewContext<Self>,
10462 ) -> Option<TransactionId> {
10463 if let Some(transaction_id) = self
10464 .buffer
10465 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10466 {
10467 if let Some((_, end_selections)) =
10468 self.selection_history.transaction_mut(transaction_id)
10469 {
10470 *end_selections = Some(self.selections.disjoint_anchors());
10471 } else {
10472 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10473 }
10474
10475 cx.emit(EditorEvent::Edited { transaction_id });
10476 Some(transaction_id)
10477 } else {
10478 None
10479 }
10480 }
10481
10482 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10483 if self.is_singleton(cx) {
10484 let selection = self.selections.newest::<Point>(cx);
10485
10486 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10487 let range = if selection.is_empty() {
10488 let point = selection.head().to_display_point(&display_map);
10489 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10490 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10491 .to_point(&display_map);
10492 start..end
10493 } else {
10494 selection.range()
10495 };
10496 if display_map.folds_in_range(range).next().is_some() {
10497 self.unfold_lines(&Default::default(), cx)
10498 } else {
10499 self.fold(&Default::default(), cx)
10500 }
10501 } else {
10502 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10503 let mut toggled_buffers = HashSet::default();
10504 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10505 self.selections
10506 .disjoint_anchors()
10507 .into_iter()
10508 .map(|selection| selection.range()),
10509 ) {
10510 let buffer_id = buffer_snapshot.remote_id();
10511 if toggled_buffers.insert(buffer_id) {
10512 if self.buffer_folded(buffer_id, cx) {
10513 self.unfold_buffer(buffer_id, cx);
10514 } else {
10515 self.fold_buffer(buffer_id, cx);
10516 }
10517 }
10518 }
10519 }
10520 }
10521
10522 pub fn toggle_fold_recursive(
10523 &mut self,
10524 _: &actions::ToggleFoldRecursive,
10525 cx: &mut ViewContext<Self>,
10526 ) {
10527 let selection = self.selections.newest::<Point>(cx);
10528
10529 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10530 let range = if selection.is_empty() {
10531 let point = selection.head().to_display_point(&display_map);
10532 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10533 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10534 .to_point(&display_map);
10535 start..end
10536 } else {
10537 selection.range()
10538 };
10539 if display_map.folds_in_range(range).next().is_some() {
10540 self.unfold_recursive(&Default::default(), cx)
10541 } else {
10542 self.fold_recursive(&Default::default(), cx)
10543 }
10544 }
10545
10546 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10547 if self.is_singleton(cx) {
10548 let mut to_fold = Vec::new();
10549 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10550 let selections = self.selections.all_adjusted(cx);
10551
10552 for selection in selections {
10553 let range = selection.range().sorted();
10554 let buffer_start_row = range.start.row;
10555
10556 if range.start.row != range.end.row {
10557 let mut found = false;
10558 let mut row = range.start.row;
10559 while row <= range.end.row {
10560 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10561 {
10562 found = true;
10563 row = crease.range().end.row + 1;
10564 to_fold.push(crease);
10565 } else {
10566 row += 1
10567 }
10568 }
10569 if found {
10570 continue;
10571 }
10572 }
10573
10574 for row in (0..=range.start.row).rev() {
10575 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10576 if crease.range().end.row >= buffer_start_row {
10577 to_fold.push(crease);
10578 if row <= range.start.row {
10579 break;
10580 }
10581 }
10582 }
10583 }
10584 }
10585
10586 self.fold_creases(to_fold, true, cx);
10587 } else {
10588 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10589 let mut folded_buffers = HashSet::default();
10590 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10591 self.selections
10592 .disjoint_anchors()
10593 .into_iter()
10594 .map(|selection| selection.range()),
10595 ) {
10596 let buffer_id = buffer_snapshot.remote_id();
10597 if folded_buffers.insert(buffer_id) {
10598 self.fold_buffer(buffer_id, cx);
10599 }
10600 }
10601 }
10602 }
10603
10604 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10605 if !self.buffer.read(cx).is_singleton() {
10606 return;
10607 }
10608
10609 let fold_at_level = fold_at.level;
10610 let snapshot = self.buffer.read(cx).snapshot(cx);
10611 let mut to_fold = Vec::new();
10612 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10613
10614 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10615 while start_row < end_row {
10616 match self
10617 .snapshot(cx)
10618 .crease_for_buffer_row(MultiBufferRow(start_row))
10619 {
10620 Some(crease) => {
10621 let nested_start_row = crease.range().start.row + 1;
10622 let nested_end_row = crease.range().end.row;
10623
10624 if current_level < fold_at_level {
10625 stack.push((nested_start_row, nested_end_row, current_level + 1));
10626 } else if current_level == fold_at_level {
10627 to_fold.push(crease);
10628 }
10629
10630 start_row = nested_end_row + 1;
10631 }
10632 None => start_row += 1,
10633 }
10634 }
10635 }
10636
10637 self.fold_creases(to_fold, true, cx);
10638 }
10639
10640 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10641 if self.buffer.read(cx).is_singleton() {
10642 let mut fold_ranges = Vec::new();
10643 let snapshot = self.buffer.read(cx).snapshot(cx);
10644
10645 for row in 0..snapshot.max_row().0 {
10646 if let Some(foldable_range) =
10647 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10648 {
10649 fold_ranges.push(foldable_range);
10650 }
10651 }
10652
10653 self.fold_creases(fold_ranges, true, cx);
10654 } else {
10655 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10656 editor
10657 .update(&mut cx, |editor, cx| {
10658 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10659 editor.fold_buffer(buffer_id, cx);
10660 }
10661 })
10662 .ok();
10663 });
10664 }
10665 }
10666
10667 pub fn fold_function_bodies(
10668 &mut self,
10669 _: &actions::FoldFunctionBodies,
10670 cx: &mut ViewContext<Self>,
10671 ) {
10672 let snapshot = self.buffer.read(cx).snapshot(cx);
10673 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10674 return;
10675 };
10676 let creases = buffer
10677 .function_body_fold_ranges(0..buffer.len())
10678 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10679 .collect();
10680
10681 self.fold_creases(creases, true, cx);
10682 }
10683
10684 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10685 let mut to_fold = Vec::new();
10686 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10687 let selections = self.selections.all_adjusted(cx);
10688
10689 for selection in selections {
10690 let range = selection.range().sorted();
10691 let buffer_start_row = range.start.row;
10692
10693 if range.start.row != range.end.row {
10694 let mut found = false;
10695 for row in range.start.row..=range.end.row {
10696 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10697 found = true;
10698 to_fold.push(crease);
10699 }
10700 }
10701 if found {
10702 continue;
10703 }
10704 }
10705
10706 for row in (0..=range.start.row).rev() {
10707 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10708 if crease.range().end.row >= buffer_start_row {
10709 to_fold.push(crease);
10710 } else {
10711 break;
10712 }
10713 }
10714 }
10715 }
10716
10717 self.fold_creases(to_fold, true, cx);
10718 }
10719
10720 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10721 let buffer_row = fold_at.buffer_row;
10722 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10723
10724 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10725 let autoscroll = self
10726 .selections
10727 .all::<Point>(cx)
10728 .iter()
10729 .any(|selection| crease.range().overlaps(&selection.range()));
10730
10731 self.fold_creases(vec![crease], autoscroll, cx);
10732 }
10733 }
10734
10735 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10736 if self.is_singleton(cx) {
10737 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10738 let buffer = &display_map.buffer_snapshot;
10739 let selections = self.selections.all::<Point>(cx);
10740 let ranges = selections
10741 .iter()
10742 .map(|s| {
10743 let range = s.display_range(&display_map).sorted();
10744 let mut start = range.start.to_point(&display_map);
10745 let mut end = range.end.to_point(&display_map);
10746 start.column = 0;
10747 end.column = buffer.line_len(MultiBufferRow(end.row));
10748 start..end
10749 })
10750 .collect::<Vec<_>>();
10751
10752 self.unfold_ranges(&ranges, true, true, cx);
10753 } else {
10754 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10755 let mut unfolded_buffers = HashSet::default();
10756 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10757 self.selections
10758 .disjoint_anchors()
10759 .into_iter()
10760 .map(|selection| selection.range()),
10761 ) {
10762 let buffer_id = buffer_snapshot.remote_id();
10763 if unfolded_buffers.insert(buffer_id) {
10764 self.unfold_buffer(buffer_id, cx);
10765 }
10766 }
10767 }
10768 }
10769
10770 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10771 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10772 let selections = self.selections.all::<Point>(cx);
10773 let ranges = selections
10774 .iter()
10775 .map(|s| {
10776 let mut range = s.display_range(&display_map).sorted();
10777 *range.start.column_mut() = 0;
10778 *range.end.column_mut() = display_map.line_len(range.end.row());
10779 let start = range.start.to_point(&display_map);
10780 let end = range.end.to_point(&display_map);
10781 start..end
10782 })
10783 .collect::<Vec<_>>();
10784
10785 self.unfold_ranges(&ranges, true, true, cx);
10786 }
10787
10788 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10789 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10790
10791 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10792 ..Point::new(
10793 unfold_at.buffer_row.0,
10794 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10795 );
10796
10797 let autoscroll = self
10798 .selections
10799 .all::<Point>(cx)
10800 .iter()
10801 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10802
10803 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10804 }
10805
10806 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10807 if self.buffer.read(cx).is_singleton() {
10808 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10809 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10810 } else {
10811 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10812 editor
10813 .update(&mut cx, |editor, cx| {
10814 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10815 editor.unfold_buffer(buffer_id, cx);
10816 }
10817 })
10818 .ok();
10819 });
10820 }
10821 }
10822
10823 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10824 let selections = self.selections.all::<Point>(cx);
10825 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10826 let line_mode = self.selections.line_mode;
10827 let ranges = selections
10828 .into_iter()
10829 .map(|s| {
10830 if line_mode {
10831 let start = Point::new(s.start.row, 0);
10832 let end = Point::new(
10833 s.end.row,
10834 display_map
10835 .buffer_snapshot
10836 .line_len(MultiBufferRow(s.end.row)),
10837 );
10838 Crease::simple(start..end, display_map.fold_placeholder.clone())
10839 } else {
10840 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10841 }
10842 })
10843 .collect::<Vec<_>>();
10844 self.fold_creases(ranges, true, cx);
10845 }
10846
10847 pub fn fold_creases<T: ToOffset + Clone>(
10848 &mut self,
10849 creases: Vec<Crease<T>>,
10850 auto_scroll: bool,
10851 cx: &mut ViewContext<Self>,
10852 ) {
10853 if creases.is_empty() {
10854 return;
10855 }
10856
10857 let mut buffers_affected = HashSet::default();
10858 let multi_buffer = self.buffer().read(cx);
10859 for crease in &creases {
10860 if let Some((_, buffer, _)) =
10861 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10862 {
10863 buffers_affected.insert(buffer.read(cx).remote_id());
10864 };
10865 }
10866
10867 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10868
10869 if auto_scroll {
10870 self.request_autoscroll(Autoscroll::fit(), cx);
10871 }
10872
10873 for buffer_id in buffers_affected {
10874 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10875 }
10876
10877 cx.notify();
10878
10879 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10880 // Clear diagnostics block when folding a range that contains it.
10881 let snapshot = self.snapshot(cx);
10882 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10883 drop(snapshot);
10884 self.active_diagnostics = Some(active_diagnostics);
10885 self.dismiss_diagnostics(cx);
10886 } else {
10887 self.active_diagnostics = Some(active_diagnostics);
10888 }
10889 }
10890
10891 self.scrollbar_marker_state.dirty = true;
10892 }
10893
10894 /// Removes any folds whose ranges intersect any of the given ranges.
10895 pub fn unfold_ranges<T: ToOffset + Clone>(
10896 &mut self,
10897 ranges: &[Range<T>],
10898 inclusive: bool,
10899 auto_scroll: bool,
10900 cx: &mut ViewContext<Self>,
10901 ) {
10902 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10903 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10904 });
10905 }
10906
10907 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10908 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10909 return;
10910 }
10911 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10912 return;
10913 };
10914 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10915 self.display_map
10916 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10917 cx.emit(EditorEvent::BufferFoldToggled {
10918 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10919 folded: true,
10920 });
10921 cx.notify();
10922 }
10923
10924 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10925 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10926 return;
10927 }
10928 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10929 return;
10930 };
10931 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10932 self.display_map.update(cx, |display_map, cx| {
10933 display_map.unfold_buffer(buffer_id, cx);
10934 });
10935 cx.emit(EditorEvent::BufferFoldToggled {
10936 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10937 folded: false,
10938 });
10939 cx.notify();
10940 }
10941
10942 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10943 self.display_map.read(cx).buffer_folded(buffer)
10944 }
10945
10946 /// Removes any folds with the given ranges.
10947 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10948 &mut self,
10949 ranges: &[Range<T>],
10950 type_id: TypeId,
10951 auto_scroll: bool,
10952 cx: &mut ViewContext<Self>,
10953 ) {
10954 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10955 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10956 });
10957 }
10958
10959 fn remove_folds_with<T: ToOffset + Clone>(
10960 &mut self,
10961 ranges: &[Range<T>],
10962 auto_scroll: bool,
10963 cx: &mut ViewContext<Self>,
10964 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10965 ) {
10966 if ranges.is_empty() {
10967 return;
10968 }
10969
10970 let mut buffers_affected = HashSet::default();
10971 let multi_buffer = self.buffer().read(cx);
10972 for range in ranges {
10973 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10974 buffers_affected.insert(buffer.read(cx).remote_id());
10975 };
10976 }
10977
10978 self.display_map.update(cx, update);
10979
10980 if auto_scroll {
10981 self.request_autoscroll(Autoscroll::fit(), cx);
10982 }
10983
10984 for buffer_id in buffers_affected {
10985 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10986 }
10987
10988 cx.notify();
10989 self.scrollbar_marker_state.dirty = true;
10990 self.active_indent_guides_state.dirty = true;
10991 }
10992
10993 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
10994 self.display_map.read(cx).fold_placeholder.clone()
10995 }
10996
10997 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
10998 if hovered != self.gutter_hovered {
10999 self.gutter_hovered = hovered;
11000 cx.notify();
11001 }
11002 }
11003
11004 pub fn insert_blocks(
11005 &mut self,
11006 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11007 autoscroll: Option<Autoscroll>,
11008 cx: &mut ViewContext<Self>,
11009 ) -> Vec<CustomBlockId> {
11010 let blocks = self
11011 .display_map
11012 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11013 if let Some(autoscroll) = autoscroll {
11014 self.request_autoscroll(autoscroll, cx);
11015 }
11016 cx.notify();
11017 blocks
11018 }
11019
11020 pub fn resize_blocks(
11021 &mut self,
11022 heights: HashMap<CustomBlockId, u32>,
11023 autoscroll: Option<Autoscroll>,
11024 cx: &mut ViewContext<Self>,
11025 ) {
11026 self.display_map
11027 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11028 if let Some(autoscroll) = autoscroll {
11029 self.request_autoscroll(autoscroll, cx);
11030 }
11031 cx.notify();
11032 }
11033
11034 pub fn replace_blocks(
11035 &mut self,
11036 renderers: HashMap<CustomBlockId, RenderBlock>,
11037 autoscroll: Option<Autoscroll>,
11038 cx: &mut ViewContext<Self>,
11039 ) {
11040 self.display_map
11041 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11042 if let Some(autoscroll) = autoscroll {
11043 self.request_autoscroll(autoscroll, cx);
11044 }
11045 cx.notify();
11046 }
11047
11048 pub fn remove_blocks(
11049 &mut self,
11050 block_ids: HashSet<CustomBlockId>,
11051 autoscroll: Option<Autoscroll>,
11052 cx: &mut ViewContext<Self>,
11053 ) {
11054 self.display_map.update(cx, |display_map, cx| {
11055 display_map.remove_blocks(block_ids, cx)
11056 });
11057 if let Some(autoscroll) = autoscroll {
11058 self.request_autoscroll(autoscroll, cx);
11059 }
11060 cx.notify();
11061 }
11062
11063 pub fn row_for_block(
11064 &self,
11065 block_id: CustomBlockId,
11066 cx: &mut ViewContext<Self>,
11067 ) -> Option<DisplayRow> {
11068 self.display_map
11069 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11070 }
11071
11072 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11073 self.focused_block = Some(focused_block);
11074 }
11075
11076 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11077 self.focused_block.take()
11078 }
11079
11080 pub fn insert_creases(
11081 &mut self,
11082 creases: impl IntoIterator<Item = Crease<Anchor>>,
11083 cx: &mut ViewContext<Self>,
11084 ) -> Vec<CreaseId> {
11085 self.display_map
11086 .update(cx, |map, cx| map.insert_creases(creases, cx))
11087 }
11088
11089 pub fn remove_creases(
11090 &mut self,
11091 ids: impl IntoIterator<Item = CreaseId>,
11092 cx: &mut ViewContext<Self>,
11093 ) {
11094 self.display_map
11095 .update(cx, |map, cx| map.remove_creases(ids, cx));
11096 }
11097
11098 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11099 self.display_map
11100 .update(cx, |map, cx| map.snapshot(cx))
11101 .longest_row()
11102 }
11103
11104 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11105 self.display_map
11106 .update(cx, |map, cx| map.snapshot(cx))
11107 .max_point()
11108 }
11109
11110 pub fn text(&self, cx: &AppContext) -> String {
11111 self.buffer.read(cx).read(cx).text()
11112 }
11113
11114 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11115 let text = self.text(cx);
11116 let text = text.trim();
11117
11118 if text.is_empty() {
11119 return None;
11120 }
11121
11122 Some(text.to_string())
11123 }
11124
11125 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11126 self.transact(cx, |this, cx| {
11127 this.buffer
11128 .read(cx)
11129 .as_singleton()
11130 .expect("you can only call set_text on editors for singleton buffers")
11131 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11132 });
11133 }
11134
11135 pub fn display_text(&self, cx: &mut AppContext) -> String {
11136 self.display_map
11137 .update(cx, |map, cx| map.snapshot(cx))
11138 .text()
11139 }
11140
11141 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11142 let mut wrap_guides = smallvec::smallvec![];
11143
11144 if self.show_wrap_guides == Some(false) {
11145 return wrap_guides;
11146 }
11147
11148 let settings = self.buffer.read(cx).settings_at(0, cx);
11149 if settings.show_wrap_guides {
11150 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11151 wrap_guides.push((soft_wrap as usize, true));
11152 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11153 wrap_guides.push((soft_wrap as usize, true));
11154 }
11155 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11156 }
11157
11158 wrap_guides
11159 }
11160
11161 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11162 let settings = self.buffer.read(cx).settings_at(0, cx);
11163 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11164 match mode {
11165 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11166 SoftWrap::None
11167 }
11168 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11169 language_settings::SoftWrap::PreferredLineLength => {
11170 SoftWrap::Column(settings.preferred_line_length)
11171 }
11172 language_settings::SoftWrap::Bounded => {
11173 SoftWrap::Bounded(settings.preferred_line_length)
11174 }
11175 }
11176 }
11177
11178 pub fn set_soft_wrap_mode(
11179 &mut self,
11180 mode: language_settings::SoftWrap,
11181 cx: &mut ViewContext<Self>,
11182 ) {
11183 self.soft_wrap_mode_override = Some(mode);
11184 cx.notify();
11185 }
11186
11187 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11188 self.text_style_refinement = Some(style);
11189 }
11190
11191 /// called by the Element so we know what style we were most recently rendered with.
11192 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11193 let rem_size = cx.rem_size();
11194 self.display_map.update(cx, |map, cx| {
11195 map.set_font(
11196 style.text.font(),
11197 style.text.font_size.to_pixels(rem_size),
11198 cx,
11199 )
11200 });
11201 self.style = Some(style);
11202 }
11203
11204 pub fn style(&self) -> Option<&EditorStyle> {
11205 self.style.as_ref()
11206 }
11207
11208 // Called by the element. This method is not designed to be called outside of the editor
11209 // element's layout code because it does not notify when rewrapping is computed synchronously.
11210 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11211 self.display_map
11212 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11213 }
11214
11215 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11216 if self.soft_wrap_mode_override.is_some() {
11217 self.soft_wrap_mode_override.take();
11218 } else {
11219 let soft_wrap = match self.soft_wrap_mode(cx) {
11220 SoftWrap::GitDiff => return,
11221 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11222 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11223 language_settings::SoftWrap::None
11224 }
11225 };
11226 self.soft_wrap_mode_override = Some(soft_wrap);
11227 }
11228 cx.notify();
11229 }
11230
11231 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11232 let Some(workspace) = self.workspace() else {
11233 return;
11234 };
11235 let fs = workspace.read(cx).app_state().fs.clone();
11236 let current_show = TabBarSettings::get_global(cx).show;
11237 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11238 setting.show = Some(!current_show);
11239 });
11240 }
11241
11242 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11243 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11244 self.buffer
11245 .read(cx)
11246 .settings_at(0, cx)
11247 .indent_guides
11248 .enabled
11249 });
11250 self.show_indent_guides = Some(!currently_enabled);
11251 cx.notify();
11252 }
11253
11254 fn should_show_indent_guides(&self) -> Option<bool> {
11255 self.show_indent_guides
11256 }
11257
11258 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11259 let mut editor_settings = EditorSettings::get_global(cx).clone();
11260 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11261 EditorSettings::override_global(editor_settings, cx);
11262 }
11263
11264 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11265 self.use_relative_line_numbers
11266 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11267 }
11268
11269 pub fn toggle_relative_line_numbers(
11270 &mut self,
11271 _: &ToggleRelativeLineNumbers,
11272 cx: &mut ViewContext<Self>,
11273 ) {
11274 let is_relative = self.should_use_relative_line_numbers(cx);
11275 self.set_relative_line_number(Some(!is_relative), cx)
11276 }
11277
11278 pub fn set_relative_line_number(
11279 &mut self,
11280 is_relative: Option<bool>,
11281 cx: &mut ViewContext<Self>,
11282 ) {
11283 self.use_relative_line_numbers = is_relative;
11284 cx.notify();
11285 }
11286
11287 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11288 self.show_gutter = show_gutter;
11289 cx.notify();
11290 }
11291
11292 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11293 self.show_scrollbars = show_scrollbars;
11294 cx.notify();
11295 }
11296
11297 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11298 self.show_line_numbers = Some(show_line_numbers);
11299 cx.notify();
11300 }
11301
11302 pub fn set_show_git_diff_gutter(
11303 &mut self,
11304 show_git_diff_gutter: bool,
11305 cx: &mut ViewContext<Self>,
11306 ) {
11307 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11308 cx.notify();
11309 }
11310
11311 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11312 self.show_code_actions = Some(show_code_actions);
11313 cx.notify();
11314 }
11315
11316 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11317 self.show_runnables = Some(show_runnables);
11318 cx.notify();
11319 }
11320
11321 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11322 if self.display_map.read(cx).masked != masked {
11323 self.display_map.update(cx, |map, _| map.masked = masked);
11324 }
11325 cx.notify()
11326 }
11327
11328 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11329 self.show_wrap_guides = Some(show_wrap_guides);
11330 cx.notify();
11331 }
11332
11333 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11334 self.show_indent_guides = Some(show_indent_guides);
11335 cx.notify();
11336 }
11337
11338 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11339 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11340 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11341 if let Some(dir) = file.abs_path(cx).parent() {
11342 return Some(dir.to_owned());
11343 }
11344 }
11345
11346 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11347 return Some(project_path.path.to_path_buf());
11348 }
11349 }
11350
11351 None
11352 }
11353
11354 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11355 self.active_excerpt(cx)?
11356 .1
11357 .read(cx)
11358 .file()
11359 .and_then(|f| f.as_local())
11360 }
11361
11362 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11363 if let Some(target) = self.target_file(cx) {
11364 cx.reveal_path(&target.abs_path(cx));
11365 }
11366 }
11367
11368 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11369 if let Some(file) = self.target_file(cx) {
11370 if let Some(path) = file.abs_path(cx).to_str() {
11371 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11372 }
11373 }
11374 }
11375
11376 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11377 if let Some(file) = self.target_file(cx) {
11378 if let Some(path) = file.path().to_str() {
11379 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11380 }
11381 }
11382 }
11383
11384 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11385 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11386
11387 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11388 self.start_git_blame(true, cx);
11389 }
11390
11391 cx.notify();
11392 }
11393
11394 pub fn toggle_git_blame_inline(
11395 &mut self,
11396 _: &ToggleGitBlameInline,
11397 cx: &mut ViewContext<Self>,
11398 ) {
11399 self.toggle_git_blame_inline_internal(true, cx);
11400 cx.notify();
11401 }
11402
11403 pub fn git_blame_inline_enabled(&self) -> bool {
11404 self.git_blame_inline_enabled
11405 }
11406
11407 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11408 self.show_selection_menu = self
11409 .show_selection_menu
11410 .map(|show_selections_menu| !show_selections_menu)
11411 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11412
11413 cx.notify();
11414 }
11415
11416 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11417 self.show_selection_menu
11418 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11419 }
11420
11421 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11422 if let Some(project) = self.project.as_ref() {
11423 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11424 return;
11425 };
11426
11427 if buffer.read(cx).file().is_none() {
11428 return;
11429 }
11430
11431 let focused = self.focus_handle(cx).contains_focused(cx);
11432
11433 let project = project.clone();
11434 let blame =
11435 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11436 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11437 self.blame = Some(blame);
11438 }
11439 }
11440
11441 fn toggle_git_blame_inline_internal(
11442 &mut self,
11443 user_triggered: bool,
11444 cx: &mut ViewContext<Self>,
11445 ) {
11446 if self.git_blame_inline_enabled {
11447 self.git_blame_inline_enabled = false;
11448 self.show_git_blame_inline = false;
11449 self.show_git_blame_inline_delay_task.take();
11450 } else {
11451 self.git_blame_inline_enabled = true;
11452 self.start_git_blame_inline(user_triggered, cx);
11453 }
11454
11455 cx.notify();
11456 }
11457
11458 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11459 self.start_git_blame(user_triggered, cx);
11460
11461 if ProjectSettings::get_global(cx)
11462 .git
11463 .inline_blame_delay()
11464 .is_some()
11465 {
11466 self.start_inline_blame_timer(cx);
11467 } else {
11468 self.show_git_blame_inline = true
11469 }
11470 }
11471
11472 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11473 self.blame.as_ref()
11474 }
11475
11476 pub fn show_git_blame_gutter(&self) -> bool {
11477 self.show_git_blame_gutter
11478 }
11479
11480 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11481 self.show_git_blame_gutter && self.has_blame_entries(cx)
11482 }
11483
11484 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11485 self.show_git_blame_inline
11486 && self.focus_handle.is_focused(cx)
11487 && !self.newest_selection_head_on_empty_line(cx)
11488 && self.has_blame_entries(cx)
11489 }
11490
11491 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11492 self.blame()
11493 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11494 }
11495
11496 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11497 let cursor_anchor = self.selections.newest_anchor().head();
11498
11499 let snapshot = self.buffer.read(cx).snapshot(cx);
11500 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11501
11502 snapshot.line_len(buffer_row) == 0
11503 }
11504
11505 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11506 let buffer_and_selection = maybe!({
11507 let selection = self.selections.newest::<Point>(cx);
11508 let selection_range = selection.range();
11509
11510 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11511 (buffer, selection_range.start.row..selection_range.end.row)
11512 } else {
11513 let multi_buffer = self.buffer().read(cx);
11514 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11515 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11516
11517 let (excerpt, range) = if selection.reversed {
11518 buffer_ranges.first()
11519 } else {
11520 buffer_ranges.last()
11521 }?;
11522
11523 let snapshot = excerpt.buffer();
11524 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11525 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11526 (
11527 multi_buffer.buffer(excerpt.buffer_id()).unwrap().clone(),
11528 selection,
11529 )
11530 };
11531
11532 Some((buffer, selection))
11533 });
11534
11535 let Some((buffer, selection)) = buffer_and_selection else {
11536 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11537 };
11538
11539 let Some(project) = self.project.as_ref() else {
11540 return Task::ready(Err(anyhow!("editor does not have project")));
11541 };
11542
11543 project.update(cx, |project, cx| {
11544 project.get_permalink_to_line(&buffer, selection, cx)
11545 })
11546 }
11547
11548 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11549 let permalink_task = self.get_permalink_to_line(cx);
11550 let workspace = self.workspace();
11551
11552 cx.spawn(|_, mut cx| async move {
11553 match permalink_task.await {
11554 Ok(permalink) => {
11555 cx.update(|cx| {
11556 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11557 })
11558 .ok();
11559 }
11560 Err(err) => {
11561 let message = format!("Failed to copy permalink: {err}");
11562
11563 Err::<(), anyhow::Error>(err).log_err();
11564
11565 if let Some(workspace) = workspace {
11566 workspace
11567 .update(&mut cx, |workspace, cx| {
11568 struct CopyPermalinkToLine;
11569
11570 workspace.show_toast(
11571 Toast::new(
11572 NotificationId::unique::<CopyPermalinkToLine>(),
11573 message,
11574 ),
11575 cx,
11576 )
11577 })
11578 .ok();
11579 }
11580 }
11581 }
11582 })
11583 .detach();
11584 }
11585
11586 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11587 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11588 if let Some(file) = self.target_file(cx) {
11589 if let Some(path) = file.path().to_str() {
11590 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11591 }
11592 }
11593 }
11594
11595 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11596 let permalink_task = self.get_permalink_to_line(cx);
11597 let workspace = self.workspace();
11598
11599 cx.spawn(|_, mut cx| async move {
11600 match permalink_task.await {
11601 Ok(permalink) => {
11602 cx.update(|cx| {
11603 cx.open_url(permalink.as_ref());
11604 })
11605 .ok();
11606 }
11607 Err(err) => {
11608 let message = format!("Failed to open permalink: {err}");
11609
11610 Err::<(), anyhow::Error>(err).log_err();
11611
11612 if let Some(workspace) = workspace {
11613 workspace
11614 .update(&mut cx, |workspace, cx| {
11615 struct OpenPermalinkToLine;
11616
11617 workspace.show_toast(
11618 Toast::new(
11619 NotificationId::unique::<OpenPermalinkToLine>(),
11620 message,
11621 ),
11622 cx,
11623 )
11624 })
11625 .ok();
11626 }
11627 }
11628 }
11629 })
11630 .detach();
11631 }
11632
11633 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11634 self.insert_uuid(UuidVersion::V4, cx);
11635 }
11636
11637 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11638 self.insert_uuid(UuidVersion::V7, cx);
11639 }
11640
11641 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11642 self.transact(cx, |this, cx| {
11643 let edits = this
11644 .selections
11645 .all::<Point>(cx)
11646 .into_iter()
11647 .map(|selection| {
11648 let uuid = match version {
11649 UuidVersion::V4 => uuid::Uuid::new_v4(),
11650 UuidVersion::V7 => uuid::Uuid::now_v7(),
11651 };
11652
11653 (selection.range(), uuid.to_string())
11654 });
11655 this.edit(edits, cx);
11656 this.refresh_inline_completion(true, false, cx);
11657 });
11658 }
11659
11660 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11661 /// last highlight added will be used.
11662 ///
11663 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11664 pub fn highlight_rows<T: 'static>(
11665 &mut self,
11666 range: Range<Anchor>,
11667 color: Hsla,
11668 should_autoscroll: bool,
11669 cx: &mut ViewContext<Self>,
11670 ) {
11671 let snapshot = self.buffer().read(cx).snapshot(cx);
11672 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11673 let ix = row_highlights.binary_search_by(|highlight| {
11674 Ordering::Equal
11675 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11676 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11677 });
11678
11679 if let Err(mut ix) = ix {
11680 let index = post_inc(&mut self.highlight_order);
11681
11682 // If this range intersects with the preceding highlight, then merge it with
11683 // the preceding highlight. Otherwise insert a new highlight.
11684 let mut merged = false;
11685 if ix > 0 {
11686 let prev_highlight = &mut row_highlights[ix - 1];
11687 if prev_highlight
11688 .range
11689 .end
11690 .cmp(&range.start, &snapshot)
11691 .is_ge()
11692 {
11693 ix -= 1;
11694 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11695 prev_highlight.range.end = range.end;
11696 }
11697 merged = true;
11698 prev_highlight.index = index;
11699 prev_highlight.color = color;
11700 prev_highlight.should_autoscroll = should_autoscroll;
11701 }
11702 }
11703
11704 if !merged {
11705 row_highlights.insert(
11706 ix,
11707 RowHighlight {
11708 range: range.clone(),
11709 index,
11710 color,
11711 should_autoscroll,
11712 },
11713 );
11714 }
11715
11716 // If any of the following highlights intersect with this one, merge them.
11717 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11718 let highlight = &row_highlights[ix];
11719 if next_highlight
11720 .range
11721 .start
11722 .cmp(&highlight.range.end, &snapshot)
11723 .is_le()
11724 {
11725 if next_highlight
11726 .range
11727 .end
11728 .cmp(&highlight.range.end, &snapshot)
11729 .is_gt()
11730 {
11731 row_highlights[ix].range.end = next_highlight.range.end;
11732 }
11733 row_highlights.remove(ix + 1);
11734 } else {
11735 break;
11736 }
11737 }
11738 }
11739 }
11740
11741 /// Remove any highlighted row ranges of the given type that intersect the
11742 /// given ranges.
11743 pub fn remove_highlighted_rows<T: 'static>(
11744 &mut self,
11745 ranges_to_remove: Vec<Range<Anchor>>,
11746 cx: &mut ViewContext<Self>,
11747 ) {
11748 let snapshot = self.buffer().read(cx).snapshot(cx);
11749 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11750 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11751 row_highlights.retain(|highlight| {
11752 while let Some(range_to_remove) = ranges_to_remove.peek() {
11753 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11754 Ordering::Less | Ordering::Equal => {
11755 ranges_to_remove.next();
11756 }
11757 Ordering::Greater => {
11758 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11759 Ordering::Less | Ordering::Equal => {
11760 return false;
11761 }
11762 Ordering::Greater => break,
11763 }
11764 }
11765 }
11766 }
11767
11768 true
11769 })
11770 }
11771
11772 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11773 pub fn clear_row_highlights<T: 'static>(&mut self) {
11774 self.highlighted_rows.remove(&TypeId::of::<T>());
11775 }
11776
11777 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11778 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11779 self.highlighted_rows
11780 .get(&TypeId::of::<T>())
11781 .map_or(&[] as &[_], |vec| vec.as_slice())
11782 .iter()
11783 .map(|highlight| (highlight.range.clone(), highlight.color))
11784 }
11785
11786 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11787 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
11788 /// Allows to ignore certain kinds of highlights.
11789 pub fn highlighted_display_rows(
11790 &mut self,
11791 cx: &mut WindowContext,
11792 ) -> BTreeMap<DisplayRow, Hsla> {
11793 let snapshot = self.snapshot(cx);
11794 let mut used_highlight_orders = HashMap::default();
11795 self.highlighted_rows
11796 .iter()
11797 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11798 .fold(
11799 BTreeMap::<DisplayRow, Hsla>::new(),
11800 |mut unique_rows, highlight| {
11801 let start = highlight.range.start.to_display_point(&snapshot);
11802 let end = highlight.range.end.to_display_point(&snapshot);
11803 let start_row = start.row().0;
11804 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11805 && end.column() == 0
11806 {
11807 end.row().0.saturating_sub(1)
11808 } else {
11809 end.row().0
11810 };
11811 for row in start_row..=end_row {
11812 let used_index =
11813 used_highlight_orders.entry(row).or_insert(highlight.index);
11814 if highlight.index >= *used_index {
11815 *used_index = highlight.index;
11816 unique_rows.insert(DisplayRow(row), highlight.color);
11817 }
11818 }
11819 unique_rows
11820 },
11821 )
11822 }
11823
11824 pub fn highlighted_display_row_for_autoscroll(
11825 &self,
11826 snapshot: &DisplaySnapshot,
11827 ) -> Option<DisplayRow> {
11828 self.highlighted_rows
11829 .values()
11830 .flat_map(|highlighted_rows| highlighted_rows.iter())
11831 .filter_map(|highlight| {
11832 if highlight.should_autoscroll {
11833 Some(highlight.range.start.to_display_point(snapshot).row())
11834 } else {
11835 None
11836 }
11837 })
11838 .min()
11839 }
11840
11841 pub fn set_search_within_ranges(
11842 &mut self,
11843 ranges: &[Range<Anchor>],
11844 cx: &mut ViewContext<Self>,
11845 ) {
11846 self.highlight_background::<SearchWithinRange>(
11847 ranges,
11848 |colors| colors.editor_document_highlight_read_background,
11849 cx,
11850 )
11851 }
11852
11853 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11854 self.breadcrumb_header = Some(new_header);
11855 }
11856
11857 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11858 self.clear_background_highlights::<SearchWithinRange>(cx);
11859 }
11860
11861 pub fn highlight_background<T: 'static>(
11862 &mut self,
11863 ranges: &[Range<Anchor>],
11864 color_fetcher: fn(&ThemeColors) -> Hsla,
11865 cx: &mut ViewContext<Self>,
11866 ) {
11867 self.background_highlights
11868 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11869 self.scrollbar_marker_state.dirty = true;
11870 cx.notify();
11871 }
11872
11873 pub fn clear_background_highlights<T: 'static>(
11874 &mut self,
11875 cx: &mut ViewContext<Self>,
11876 ) -> Option<BackgroundHighlight> {
11877 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11878 if !text_highlights.1.is_empty() {
11879 self.scrollbar_marker_state.dirty = true;
11880 cx.notify();
11881 }
11882 Some(text_highlights)
11883 }
11884
11885 pub fn highlight_gutter<T: 'static>(
11886 &mut self,
11887 ranges: &[Range<Anchor>],
11888 color_fetcher: fn(&AppContext) -> Hsla,
11889 cx: &mut ViewContext<Self>,
11890 ) {
11891 self.gutter_highlights
11892 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11893 cx.notify();
11894 }
11895
11896 pub fn clear_gutter_highlights<T: 'static>(
11897 &mut self,
11898 cx: &mut ViewContext<Self>,
11899 ) -> Option<GutterHighlight> {
11900 cx.notify();
11901 self.gutter_highlights.remove(&TypeId::of::<T>())
11902 }
11903
11904 #[cfg(feature = "test-support")]
11905 pub fn all_text_background_highlights(
11906 &mut self,
11907 cx: &mut ViewContext<Self>,
11908 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11909 let snapshot = self.snapshot(cx);
11910 let buffer = &snapshot.buffer_snapshot;
11911 let start = buffer.anchor_before(0);
11912 let end = buffer.anchor_after(buffer.len());
11913 let theme = cx.theme().colors();
11914 self.background_highlights_in_range(start..end, &snapshot, theme)
11915 }
11916
11917 #[cfg(feature = "test-support")]
11918 pub fn search_background_highlights(
11919 &mut self,
11920 cx: &mut ViewContext<Self>,
11921 ) -> Vec<Range<Point>> {
11922 let snapshot = self.buffer().read(cx).snapshot(cx);
11923
11924 let highlights = self
11925 .background_highlights
11926 .get(&TypeId::of::<items::BufferSearchHighlights>());
11927
11928 if let Some((_color, ranges)) = highlights {
11929 ranges
11930 .iter()
11931 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11932 .collect_vec()
11933 } else {
11934 vec![]
11935 }
11936 }
11937
11938 fn document_highlights_for_position<'a>(
11939 &'a self,
11940 position: Anchor,
11941 buffer: &'a MultiBufferSnapshot,
11942 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11943 let read_highlights = self
11944 .background_highlights
11945 .get(&TypeId::of::<DocumentHighlightRead>())
11946 .map(|h| &h.1);
11947 let write_highlights = self
11948 .background_highlights
11949 .get(&TypeId::of::<DocumentHighlightWrite>())
11950 .map(|h| &h.1);
11951 let left_position = position.bias_left(buffer);
11952 let right_position = position.bias_right(buffer);
11953 read_highlights
11954 .into_iter()
11955 .chain(write_highlights)
11956 .flat_map(move |ranges| {
11957 let start_ix = match ranges.binary_search_by(|probe| {
11958 let cmp = probe.end.cmp(&left_position, buffer);
11959 if cmp.is_ge() {
11960 Ordering::Greater
11961 } else {
11962 Ordering::Less
11963 }
11964 }) {
11965 Ok(i) | Err(i) => i,
11966 };
11967
11968 ranges[start_ix..]
11969 .iter()
11970 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11971 })
11972 }
11973
11974 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11975 self.background_highlights
11976 .get(&TypeId::of::<T>())
11977 .map_or(false, |(_, highlights)| !highlights.is_empty())
11978 }
11979
11980 pub fn background_highlights_in_range(
11981 &self,
11982 search_range: Range<Anchor>,
11983 display_snapshot: &DisplaySnapshot,
11984 theme: &ThemeColors,
11985 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11986 let mut results = Vec::new();
11987 for (color_fetcher, ranges) in self.background_highlights.values() {
11988 let color = color_fetcher(theme);
11989 let start_ix = match ranges.binary_search_by(|probe| {
11990 let cmp = probe
11991 .end
11992 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
11993 if cmp.is_gt() {
11994 Ordering::Greater
11995 } else {
11996 Ordering::Less
11997 }
11998 }) {
11999 Ok(i) | Err(i) => i,
12000 };
12001 for range in &ranges[start_ix..] {
12002 if range
12003 .start
12004 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12005 .is_ge()
12006 {
12007 break;
12008 }
12009
12010 let start = range.start.to_display_point(display_snapshot);
12011 let end = range.end.to_display_point(display_snapshot);
12012 results.push((start..end, color))
12013 }
12014 }
12015 results
12016 }
12017
12018 pub fn background_highlight_row_ranges<T: 'static>(
12019 &self,
12020 search_range: Range<Anchor>,
12021 display_snapshot: &DisplaySnapshot,
12022 count: usize,
12023 ) -> Vec<RangeInclusive<DisplayPoint>> {
12024 let mut results = Vec::new();
12025 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12026 return vec![];
12027 };
12028
12029 let start_ix = match ranges.binary_search_by(|probe| {
12030 let cmp = probe
12031 .end
12032 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12033 if cmp.is_gt() {
12034 Ordering::Greater
12035 } else {
12036 Ordering::Less
12037 }
12038 }) {
12039 Ok(i) | Err(i) => i,
12040 };
12041 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12042 if let (Some(start_display), Some(end_display)) = (start, end) {
12043 results.push(
12044 start_display.to_display_point(display_snapshot)
12045 ..=end_display.to_display_point(display_snapshot),
12046 );
12047 }
12048 };
12049 let mut start_row: Option<Point> = None;
12050 let mut end_row: Option<Point> = None;
12051 if ranges.len() > count {
12052 return Vec::new();
12053 }
12054 for range in &ranges[start_ix..] {
12055 if range
12056 .start
12057 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12058 .is_ge()
12059 {
12060 break;
12061 }
12062 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12063 if let Some(current_row) = &end_row {
12064 if end.row == current_row.row {
12065 continue;
12066 }
12067 }
12068 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12069 if start_row.is_none() {
12070 assert_eq!(end_row, None);
12071 start_row = Some(start);
12072 end_row = Some(end);
12073 continue;
12074 }
12075 if let Some(current_end) = end_row.as_mut() {
12076 if start.row > current_end.row + 1 {
12077 push_region(start_row, end_row);
12078 start_row = Some(start);
12079 end_row = Some(end);
12080 } else {
12081 // Merge two hunks.
12082 *current_end = end;
12083 }
12084 } else {
12085 unreachable!();
12086 }
12087 }
12088 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12089 push_region(start_row, end_row);
12090 results
12091 }
12092
12093 pub fn gutter_highlights_in_range(
12094 &self,
12095 search_range: Range<Anchor>,
12096 display_snapshot: &DisplaySnapshot,
12097 cx: &AppContext,
12098 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12099 let mut results = Vec::new();
12100 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12101 let color = color_fetcher(cx);
12102 let start_ix = match ranges.binary_search_by(|probe| {
12103 let cmp = probe
12104 .end
12105 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12106 if cmp.is_gt() {
12107 Ordering::Greater
12108 } else {
12109 Ordering::Less
12110 }
12111 }) {
12112 Ok(i) | Err(i) => i,
12113 };
12114 for range in &ranges[start_ix..] {
12115 if range
12116 .start
12117 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12118 .is_ge()
12119 {
12120 break;
12121 }
12122
12123 let start = range.start.to_display_point(display_snapshot);
12124 let end = range.end.to_display_point(display_snapshot);
12125 results.push((start..end, color))
12126 }
12127 }
12128 results
12129 }
12130
12131 /// Get the text ranges corresponding to the redaction query
12132 pub fn redacted_ranges(
12133 &self,
12134 search_range: Range<Anchor>,
12135 display_snapshot: &DisplaySnapshot,
12136 cx: &WindowContext,
12137 ) -> Vec<Range<DisplayPoint>> {
12138 display_snapshot
12139 .buffer_snapshot
12140 .redacted_ranges(search_range, |file| {
12141 if let Some(file) = file {
12142 file.is_private()
12143 && EditorSettings::get(
12144 Some(SettingsLocation {
12145 worktree_id: file.worktree_id(cx),
12146 path: file.path().as_ref(),
12147 }),
12148 cx,
12149 )
12150 .redact_private_values
12151 } else {
12152 false
12153 }
12154 })
12155 .map(|range| {
12156 range.start.to_display_point(display_snapshot)
12157 ..range.end.to_display_point(display_snapshot)
12158 })
12159 .collect()
12160 }
12161
12162 pub fn highlight_text<T: 'static>(
12163 &mut self,
12164 ranges: Vec<Range<Anchor>>,
12165 style: HighlightStyle,
12166 cx: &mut ViewContext<Self>,
12167 ) {
12168 self.display_map.update(cx, |map, _| {
12169 map.highlight_text(TypeId::of::<T>(), ranges, style)
12170 });
12171 cx.notify();
12172 }
12173
12174 pub(crate) fn highlight_inlays<T: 'static>(
12175 &mut self,
12176 highlights: Vec<InlayHighlight>,
12177 style: HighlightStyle,
12178 cx: &mut ViewContext<Self>,
12179 ) {
12180 self.display_map.update(cx, |map, _| {
12181 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12182 });
12183 cx.notify();
12184 }
12185
12186 pub fn text_highlights<'a, T: 'static>(
12187 &'a self,
12188 cx: &'a AppContext,
12189 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12190 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12191 }
12192
12193 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12194 let cleared = self
12195 .display_map
12196 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12197 if cleared {
12198 cx.notify();
12199 }
12200 }
12201
12202 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12203 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12204 && self.focus_handle.is_focused(cx)
12205 }
12206
12207 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12208 self.show_cursor_when_unfocused = is_enabled;
12209 cx.notify();
12210 }
12211
12212 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12213 self.project
12214 .as_ref()
12215 .map(|project| project.read(cx).lsp_store())
12216 }
12217
12218 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12219 cx.notify();
12220 }
12221
12222 fn on_buffer_event(
12223 &mut self,
12224 multibuffer: Model<MultiBuffer>,
12225 event: &multi_buffer::Event,
12226 cx: &mut ViewContext<Self>,
12227 ) {
12228 match event {
12229 multi_buffer::Event::Edited {
12230 singleton_buffer_edited,
12231 edited_buffer: buffer_edited,
12232 } => {
12233 self.scrollbar_marker_state.dirty = true;
12234 self.active_indent_guides_state.dirty = true;
12235 self.refresh_active_diagnostics(cx);
12236 self.refresh_code_actions(cx);
12237 if self.has_active_inline_completion() {
12238 self.update_visible_inline_completion(cx);
12239 }
12240 if let Some(buffer) = buffer_edited {
12241 let buffer_id = buffer.read(cx).remote_id();
12242 if !self.registered_buffers.contains_key(&buffer_id) {
12243 if let Some(lsp_store) = self.lsp_store(cx) {
12244 lsp_store.update(cx, |lsp_store, cx| {
12245 self.registered_buffers.insert(
12246 buffer_id,
12247 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12248 );
12249 })
12250 }
12251 }
12252 }
12253 cx.emit(EditorEvent::BufferEdited);
12254 cx.emit(SearchEvent::MatchesInvalidated);
12255 if *singleton_buffer_edited {
12256 if let Some(project) = &self.project {
12257 let project = project.read(cx);
12258 #[allow(clippy::mutable_key_type)]
12259 let languages_affected = multibuffer
12260 .read(cx)
12261 .all_buffers()
12262 .into_iter()
12263 .filter_map(|buffer| {
12264 let buffer = buffer.read(cx);
12265 let language = buffer.language()?;
12266 if project.is_local()
12267 && project
12268 .language_servers_for_local_buffer(buffer, cx)
12269 .count()
12270 == 0
12271 {
12272 None
12273 } else {
12274 Some(language)
12275 }
12276 })
12277 .cloned()
12278 .collect::<HashSet<_>>();
12279 if !languages_affected.is_empty() {
12280 self.refresh_inlay_hints(
12281 InlayHintRefreshReason::BufferEdited(languages_affected),
12282 cx,
12283 );
12284 }
12285 }
12286 }
12287
12288 let Some(project) = &self.project else { return };
12289 let (telemetry, is_via_ssh) = {
12290 let project = project.read(cx);
12291 let telemetry = project.client().telemetry().clone();
12292 let is_via_ssh = project.is_via_ssh();
12293 (telemetry, is_via_ssh)
12294 };
12295 refresh_linked_ranges(self, cx);
12296 telemetry.log_edit_event("editor", is_via_ssh);
12297 }
12298 multi_buffer::Event::ExcerptsAdded {
12299 buffer,
12300 predecessor,
12301 excerpts,
12302 } => {
12303 self.tasks_update_task = Some(self.refresh_runnables(cx));
12304 let buffer_id = buffer.read(cx).remote_id();
12305 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12306 if let Some(project) = &self.project {
12307 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12308 }
12309 }
12310 cx.emit(EditorEvent::ExcerptsAdded {
12311 buffer: buffer.clone(),
12312 predecessor: *predecessor,
12313 excerpts: excerpts.clone(),
12314 });
12315 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12316 }
12317 multi_buffer::Event::ExcerptsRemoved { ids } => {
12318 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12319 let buffer = self.buffer.read(cx);
12320 self.registered_buffers
12321 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12322 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12323 }
12324 multi_buffer::Event::ExcerptsEdited { ids } => {
12325 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12326 }
12327 multi_buffer::Event::ExcerptsExpanded { ids } => {
12328 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12329 }
12330 multi_buffer::Event::Reparsed(buffer_id) => {
12331 self.tasks_update_task = Some(self.refresh_runnables(cx));
12332
12333 cx.emit(EditorEvent::Reparsed(*buffer_id));
12334 }
12335 multi_buffer::Event::LanguageChanged(buffer_id) => {
12336 linked_editing_ranges::refresh_linked_ranges(self, cx);
12337 cx.emit(EditorEvent::Reparsed(*buffer_id));
12338 cx.notify();
12339 }
12340 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12341 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12342 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12343 cx.emit(EditorEvent::TitleChanged)
12344 }
12345 // multi_buffer::Event::DiffBaseChanged => {
12346 // self.scrollbar_marker_state.dirty = true;
12347 // cx.emit(EditorEvent::DiffBaseChanged);
12348 // cx.notify();
12349 // }
12350 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12351 multi_buffer::Event::DiagnosticsUpdated => {
12352 self.refresh_active_diagnostics(cx);
12353 self.scrollbar_marker_state.dirty = true;
12354 cx.notify();
12355 }
12356 _ => {}
12357 };
12358 }
12359
12360 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12361 cx.notify();
12362 }
12363
12364 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12365 self.tasks_update_task = Some(self.refresh_runnables(cx));
12366 self.refresh_inline_completion(true, false, cx);
12367 self.refresh_inlay_hints(
12368 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12369 self.selections.newest_anchor().head(),
12370 &self.buffer.read(cx).snapshot(cx),
12371 cx,
12372 )),
12373 cx,
12374 );
12375
12376 let old_cursor_shape = self.cursor_shape;
12377
12378 {
12379 let editor_settings = EditorSettings::get_global(cx);
12380 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12381 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12382 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12383 }
12384
12385 if old_cursor_shape != self.cursor_shape {
12386 cx.emit(EditorEvent::CursorShapeChanged);
12387 }
12388
12389 let project_settings = ProjectSettings::get_global(cx);
12390 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12391
12392 if self.mode == EditorMode::Full {
12393 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12394 if self.git_blame_inline_enabled != inline_blame_enabled {
12395 self.toggle_git_blame_inline_internal(false, cx);
12396 }
12397 }
12398
12399 cx.notify();
12400 }
12401
12402 pub fn set_searchable(&mut self, searchable: bool) {
12403 self.searchable = searchable;
12404 }
12405
12406 pub fn searchable(&self) -> bool {
12407 self.searchable
12408 }
12409
12410 fn open_proposed_changes_editor(
12411 &mut self,
12412 _: &OpenProposedChangesEditor,
12413 cx: &mut ViewContext<Self>,
12414 ) {
12415 let Some(workspace) = self.workspace() else {
12416 cx.propagate();
12417 return;
12418 };
12419
12420 let selections = self.selections.all::<usize>(cx);
12421 let multi_buffer = self.buffer.read(cx);
12422 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12423 let mut new_selections_by_buffer = HashMap::default();
12424 for selection in selections {
12425 for (excerpt, range) in
12426 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12427 {
12428 let mut range = range.to_point(excerpt.buffer());
12429 range.start.column = 0;
12430 range.end.column = excerpt.buffer().line_len(range.end.row);
12431 new_selections_by_buffer
12432 .entry(multi_buffer.buffer(excerpt.buffer_id()).unwrap())
12433 .or_insert(Vec::new())
12434 .push(range)
12435 }
12436 }
12437
12438 let proposed_changes_buffers = new_selections_by_buffer
12439 .into_iter()
12440 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12441 .collect::<Vec<_>>();
12442 let proposed_changes_editor = cx.new_view(|cx| {
12443 ProposedChangesEditor::new(
12444 "Proposed changes",
12445 proposed_changes_buffers,
12446 self.project.clone(),
12447 cx,
12448 )
12449 });
12450
12451 cx.window_context().defer(move |cx| {
12452 workspace.update(cx, |workspace, cx| {
12453 workspace.active_pane().update(cx, |pane, cx| {
12454 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12455 });
12456 });
12457 });
12458 }
12459
12460 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12461 self.open_excerpts_common(None, true, cx)
12462 }
12463
12464 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12465 self.open_excerpts_common(None, false, cx)
12466 }
12467
12468 fn open_excerpts_common(
12469 &mut self,
12470 jump_data: Option<JumpData>,
12471 split: bool,
12472 cx: &mut ViewContext<Self>,
12473 ) {
12474 let Some(workspace) = self.workspace() else {
12475 cx.propagate();
12476 return;
12477 };
12478
12479 if self.buffer.read(cx).is_singleton() {
12480 cx.propagate();
12481 return;
12482 }
12483
12484 let mut new_selections_by_buffer = HashMap::default();
12485 match &jump_data {
12486 Some(JumpData::MultiBufferPoint {
12487 excerpt_id,
12488 position,
12489 anchor,
12490 line_offset_from_top,
12491 }) => {
12492 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12493 if let Some(buffer) = multi_buffer_snapshot
12494 .buffer_id_for_excerpt(*excerpt_id)
12495 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12496 {
12497 let buffer_snapshot = buffer.read(cx).snapshot();
12498 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12499 language::ToPoint::to_point(anchor, &buffer_snapshot)
12500 } else {
12501 buffer_snapshot.clip_point(*position, Bias::Left)
12502 };
12503 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12504 new_selections_by_buffer.insert(
12505 buffer,
12506 (
12507 vec![jump_to_offset..jump_to_offset],
12508 Some(*line_offset_from_top),
12509 ),
12510 );
12511 }
12512 }
12513 Some(JumpData::MultiBufferRow {
12514 row,
12515 line_offset_from_top,
12516 }) => {
12517 let point = MultiBufferPoint::new(row.0, 0);
12518 if let Some((buffer, buffer_point, _)) =
12519 self.buffer.read(cx).point_to_buffer_point(point, cx)
12520 {
12521 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12522 new_selections_by_buffer
12523 .entry(buffer)
12524 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12525 .0
12526 .push(buffer_offset..buffer_offset)
12527 }
12528 }
12529 None => {
12530 let selections = self.selections.all::<usize>(cx);
12531 let multi_buffer = self.buffer.read(cx);
12532 for selection in selections {
12533 for (excerpt, mut range) in multi_buffer
12534 .snapshot(cx)
12535 .range_to_buffer_ranges(selection.range())
12536 {
12537 // When editing branch buffers, jump to the corresponding location
12538 // in their base buffer.
12539 let mut buffer_handle = multi_buffer.buffer(excerpt.buffer_id()).unwrap();
12540 let buffer = buffer_handle.read(cx);
12541 if let Some(base_buffer) = buffer.base_buffer() {
12542 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12543 buffer_handle = base_buffer;
12544 }
12545
12546 if selection.reversed {
12547 mem::swap(&mut range.start, &mut range.end);
12548 }
12549 new_selections_by_buffer
12550 .entry(buffer_handle)
12551 .or_insert((Vec::new(), None))
12552 .0
12553 .push(range)
12554 }
12555 }
12556 }
12557 }
12558
12559 if new_selections_by_buffer.is_empty() {
12560 return;
12561 }
12562
12563 // We defer the pane interaction because we ourselves are a workspace item
12564 // and activating a new item causes the pane to call a method on us reentrantly,
12565 // which panics if we're on the stack.
12566 cx.window_context().defer(move |cx| {
12567 workspace.update(cx, |workspace, cx| {
12568 let pane = if split {
12569 workspace.adjacent_pane(cx)
12570 } else {
12571 workspace.active_pane().clone()
12572 };
12573
12574 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12575 let editor = buffer
12576 .read(cx)
12577 .file()
12578 .is_none()
12579 .then(|| {
12580 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12581 // so `workspace.open_project_item` will never find them, always opening a new editor.
12582 // Instead, we try to activate the existing editor in the pane first.
12583 let (editor, pane_item_index) =
12584 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12585 let editor = item.downcast::<Editor>()?;
12586 let singleton_buffer =
12587 editor.read(cx).buffer().read(cx).as_singleton()?;
12588 if singleton_buffer == buffer {
12589 Some((editor, i))
12590 } else {
12591 None
12592 }
12593 })?;
12594 pane.update(cx, |pane, cx| {
12595 pane.activate_item(pane_item_index, true, true, cx)
12596 });
12597 Some(editor)
12598 })
12599 .flatten()
12600 .unwrap_or_else(|| {
12601 workspace.open_project_item::<Self>(
12602 pane.clone(),
12603 buffer,
12604 true,
12605 true,
12606 cx,
12607 )
12608 });
12609
12610 editor.update(cx, |editor, cx| {
12611 let autoscroll = match scroll_offset {
12612 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12613 None => Autoscroll::newest(),
12614 };
12615 let nav_history = editor.nav_history.take();
12616 editor.change_selections(Some(autoscroll), cx, |s| {
12617 s.select_ranges(ranges);
12618 });
12619 editor.nav_history = nav_history;
12620 });
12621 }
12622 })
12623 });
12624 }
12625
12626 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12627 let snapshot = self.buffer.read(cx).read(cx);
12628 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12629 Some(
12630 ranges
12631 .iter()
12632 .map(move |range| {
12633 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12634 })
12635 .collect(),
12636 )
12637 }
12638
12639 fn selection_replacement_ranges(
12640 &self,
12641 range: Range<OffsetUtf16>,
12642 cx: &mut AppContext,
12643 ) -> Vec<Range<OffsetUtf16>> {
12644 let selections = self.selections.all::<OffsetUtf16>(cx);
12645 let newest_selection = selections
12646 .iter()
12647 .max_by_key(|selection| selection.id)
12648 .unwrap();
12649 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12650 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12651 let snapshot = self.buffer.read(cx).read(cx);
12652 selections
12653 .into_iter()
12654 .map(|mut selection| {
12655 selection.start.0 =
12656 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12657 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12658 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12659 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12660 })
12661 .collect()
12662 }
12663
12664 fn report_editor_event(
12665 &self,
12666 event_type: &'static str,
12667 file_extension: Option<String>,
12668 cx: &AppContext,
12669 ) {
12670 if cfg!(any(test, feature = "test-support")) {
12671 return;
12672 }
12673
12674 let Some(project) = &self.project else { return };
12675
12676 // If None, we are in a file without an extension
12677 let file = self
12678 .buffer
12679 .read(cx)
12680 .as_singleton()
12681 .and_then(|b| b.read(cx).file());
12682 let file_extension = file_extension.or(file
12683 .as_ref()
12684 .and_then(|file| Path::new(file.file_name(cx)).extension())
12685 .and_then(|e| e.to_str())
12686 .map(|a| a.to_string()));
12687
12688 let vim_mode = cx
12689 .global::<SettingsStore>()
12690 .raw_user_settings()
12691 .get("vim_mode")
12692 == Some(&serde_json::Value::Bool(true));
12693
12694 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12695 == language::language_settings::InlineCompletionProvider::Copilot;
12696 let copilot_enabled_for_language = self
12697 .buffer
12698 .read(cx)
12699 .settings_at(0, cx)
12700 .show_inline_completions;
12701
12702 let project = project.read(cx);
12703 telemetry::event!(
12704 event_type,
12705 file_extension,
12706 vim_mode,
12707 copilot_enabled,
12708 copilot_enabled_for_language,
12709 is_via_ssh = project.is_via_ssh(),
12710 );
12711 }
12712
12713 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12714 /// with each line being an array of {text, highlight} objects.
12715 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12716 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12717 return;
12718 };
12719
12720 #[derive(Serialize)]
12721 struct Chunk<'a> {
12722 text: String,
12723 highlight: Option<&'a str>,
12724 }
12725
12726 let snapshot = buffer.read(cx).snapshot();
12727 let range = self
12728 .selected_text_range(false, cx)
12729 .and_then(|selection| {
12730 if selection.range.is_empty() {
12731 None
12732 } else {
12733 Some(selection.range)
12734 }
12735 })
12736 .unwrap_or_else(|| 0..snapshot.len());
12737
12738 let chunks = snapshot.chunks(range, true);
12739 let mut lines = Vec::new();
12740 let mut line: VecDeque<Chunk> = VecDeque::new();
12741
12742 let Some(style) = self.style.as_ref() else {
12743 return;
12744 };
12745
12746 for chunk in chunks {
12747 let highlight = chunk
12748 .syntax_highlight_id
12749 .and_then(|id| id.name(&style.syntax));
12750 let mut chunk_lines = chunk.text.split('\n').peekable();
12751 while let Some(text) = chunk_lines.next() {
12752 let mut merged_with_last_token = false;
12753 if let Some(last_token) = line.back_mut() {
12754 if last_token.highlight == highlight {
12755 last_token.text.push_str(text);
12756 merged_with_last_token = true;
12757 }
12758 }
12759
12760 if !merged_with_last_token {
12761 line.push_back(Chunk {
12762 text: text.into(),
12763 highlight,
12764 });
12765 }
12766
12767 if chunk_lines.peek().is_some() {
12768 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12769 line.pop_front();
12770 }
12771 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12772 line.pop_back();
12773 }
12774
12775 lines.push(mem::take(&mut line));
12776 }
12777 }
12778 }
12779
12780 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12781 return;
12782 };
12783 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12784 }
12785
12786 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12787 self.request_autoscroll(Autoscroll::newest(), cx);
12788 let position = self.selections.newest_display(cx).start;
12789 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12790 }
12791
12792 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12793 &self.inlay_hint_cache
12794 }
12795
12796 pub fn replay_insert_event(
12797 &mut self,
12798 text: &str,
12799 relative_utf16_range: Option<Range<isize>>,
12800 cx: &mut ViewContext<Self>,
12801 ) {
12802 if !self.input_enabled {
12803 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12804 return;
12805 }
12806 if let Some(relative_utf16_range) = relative_utf16_range {
12807 let selections = self.selections.all::<OffsetUtf16>(cx);
12808 self.change_selections(None, cx, |s| {
12809 let new_ranges = selections.into_iter().map(|range| {
12810 let start = OffsetUtf16(
12811 range
12812 .head()
12813 .0
12814 .saturating_add_signed(relative_utf16_range.start),
12815 );
12816 let end = OffsetUtf16(
12817 range
12818 .head()
12819 .0
12820 .saturating_add_signed(relative_utf16_range.end),
12821 );
12822 start..end
12823 });
12824 s.select_ranges(new_ranges);
12825 });
12826 }
12827
12828 self.handle_input(text, cx);
12829 }
12830
12831 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12832 let Some(provider) = self.semantics_provider.as_ref() else {
12833 return false;
12834 };
12835
12836 let mut supports = false;
12837 self.buffer().read(cx).for_each_buffer(|buffer| {
12838 supports |= provider.supports_inlay_hints(buffer, cx);
12839 });
12840 supports
12841 }
12842
12843 pub fn focus(&self, cx: &mut WindowContext) {
12844 cx.focus(&self.focus_handle)
12845 }
12846
12847 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12848 self.focus_handle.is_focused(cx)
12849 }
12850
12851 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12852 cx.emit(EditorEvent::Focused);
12853
12854 if let Some(descendant) = self
12855 .last_focused_descendant
12856 .take()
12857 .and_then(|descendant| descendant.upgrade())
12858 {
12859 cx.focus(&descendant);
12860 } else {
12861 if let Some(blame) = self.blame.as_ref() {
12862 blame.update(cx, GitBlame::focus)
12863 }
12864
12865 self.blink_manager.update(cx, BlinkManager::enable);
12866 self.show_cursor_names(cx);
12867 self.buffer.update(cx, |buffer, cx| {
12868 buffer.finalize_last_transaction(cx);
12869 if self.leader_peer_id.is_none() {
12870 buffer.set_active_selections(
12871 &self.selections.disjoint_anchors(),
12872 self.selections.line_mode,
12873 self.cursor_shape,
12874 cx,
12875 );
12876 }
12877 });
12878 }
12879 }
12880
12881 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12882 cx.emit(EditorEvent::FocusedIn)
12883 }
12884
12885 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12886 if event.blurred != self.focus_handle {
12887 self.last_focused_descendant = Some(event.blurred);
12888 }
12889 }
12890
12891 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12892 self.blink_manager.update(cx, BlinkManager::disable);
12893 self.buffer
12894 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12895
12896 if let Some(blame) = self.blame.as_ref() {
12897 blame.update(cx, GitBlame::blur)
12898 }
12899 if !self.hover_state.focused(cx) {
12900 hide_hover(self, cx);
12901 }
12902
12903 self.hide_context_menu(cx);
12904 cx.emit(EditorEvent::Blurred);
12905 cx.notify();
12906 }
12907
12908 pub fn register_action<A: Action>(
12909 &mut self,
12910 listener: impl Fn(&A, &mut WindowContext) + 'static,
12911 ) -> Subscription {
12912 let id = self.next_editor_action_id.post_inc();
12913 let listener = Arc::new(listener);
12914 self.editor_actions.borrow_mut().insert(
12915 id,
12916 Box::new(move |cx| {
12917 let cx = cx.window_context();
12918 let listener = listener.clone();
12919 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12920 let action = action.downcast_ref().unwrap();
12921 if phase == DispatchPhase::Bubble {
12922 listener(action, cx)
12923 }
12924 })
12925 }),
12926 );
12927
12928 let editor_actions = self.editor_actions.clone();
12929 Subscription::new(move || {
12930 editor_actions.borrow_mut().remove(&id);
12931 })
12932 }
12933
12934 pub fn file_header_size(&self) -> u32 {
12935 FILE_HEADER_HEIGHT
12936 }
12937
12938 pub fn revert(
12939 &mut self,
12940 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12941 cx: &mut ViewContext<Self>,
12942 ) {
12943 self.buffer().update(cx, |multi_buffer, cx| {
12944 for (buffer_id, changes) in revert_changes {
12945 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12946 buffer.update(cx, |buffer, cx| {
12947 buffer.edit(
12948 changes.into_iter().map(|(range, text)| {
12949 (range, text.to_string().map(Arc::<str>::from))
12950 }),
12951 None,
12952 cx,
12953 );
12954 });
12955 }
12956 }
12957 });
12958 self.change_selections(None, cx, |selections| selections.refresh());
12959 }
12960
12961 pub fn to_pixel_point(
12962 &mut self,
12963 source: multi_buffer::Anchor,
12964 editor_snapshot: &EditorSnapshot,
12965 cx: &mut ViewContext<Self>,
12966 ) -> Option<gpui::Point<Pixels>> {
12967 let source_point = source.to_display_point(editor_snapshot);
12968 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12969 }
12970
12971 pub fn display_to_pixel_point(
12972 &self,
12973 source: DisplayPoint,
12974 editor_snapshot: &EditorSnapshot,
12975 cx: &WindowContext,
12976 ) -> Option<gpui::Point<Pixels>> {
12977 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12978 let text_layout_details = self.text_layout_details(cx);
12979 let scroll_top = text_layout_details
12980 .scroll_anchor
12981 .scroll_position(editor_snapshot)
12982 .y;
12983
12984 if source.row().as_f32() < scroll_top.floor() {
12985 return None;
12986 }
12987 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12988 let source_y = line_height * (source.row().as_f32() - scroll_top);
12989 Some(gpui::Point::new(source_x, source_y))
12990 }
12991
12992 pub fn has_active_completions_menu(&self) -> bool {
12993 self.context_menu.borrow().as_ref().map_or(false, |menu| {
12994 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
12995 })
12996 }
12997
12998 pub fn register_addon<T: Addon>(&mut self, instance: T) {
12999 self.addons
13000 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13001 }
13002
13003 pub fn unregister_addon<T: Addon>(&mut self) {
13004 self.addons.remove(&std::any::TypeId::of::<T>());
13005 }
13006
13007 pub fn addon<T: Addon>(&self) -> Option<&T> {
13008 let type_id = std::any::TypeId::of::<T>();
13009 self.addons
13010 .get(&type_id)
13011 .and_then(|item| item.to_any().downcast_ref::<T>())
13012 }
13013
13014 pub fn add_change_set(
13015 &mut self,
13016 change_set: Model<BufferChangeSet>,
13017 cx: &mut ViewContext<Self>,
13018 ) {
13019 self.diff_map.add_change_set(change_set, cx);
13020 }
13021
13022 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13023 let text_layout_details = self.text_layout_details(cx);
13024 let style = &text_layout_details.editor_style;
13025 let font_id = cx.text_system().resolve_font(&style.text.font());
13026 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13027 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13028
13029 let em_width = cx
13030 .text_system()
13031 .typographic_bounds(font_id, font_size, 'm')
13032 .unwrap()
13033 .size
13034 .width;
13035
13036 gpui::Point::new(em_width, line_height)
13037 }
13038}
13039
13040fn get_unstaged_changes_for_buffers(
13041 project: &Model<Project>,
13042 buffers: impl IntoIterator<Item = Model<Buffer>>,
13043 cx: &mut ViewContext<Editor>,
13044) {
13045 let mut tasks = Vec::new();
13046 project.update(cx, |project, cx| {
13047 for buffer in buffers {
13048 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13049 }
13050 });
13051 cx.spawn(|this, mut cx| async move {
13052 let change_sets = futures::future::join_all(tasks).await;
13053 this.update(&mut cx, |this, cx| {
13054 for change_set in change_sets {
13055 if let Some(change_set) = change_set.log_err() {
13056 this.diff_map.add_change_set(change_set, cx);
13057 }
13058 }
13059 })
13060 .ok();
13061 })
13062 .detach();
13063}
13064
13065fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13066 let tab_size = tab_size.get() as usize;
13067 let mut width = offset;
13068
13069 for ch in text.chars() {
13070 width += if ch == '\t' {
13071 tab_size - (width % tab_size)
13072 } else {
13073 1
13074 };
13075 }
13076
13077 width - offset
13078}
13079
13080#[cfg(test)]
13081mod tests {
13082 use super::*;
13083
13084 #[test]
13085 fn test_string_size_with_expanded_tabs() {
13086 let nz = |val| NonZeroU32::new(val).unwrap();
13087 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13088 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13089 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13090 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13091 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13092 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13093 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13094 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13095 }
13096}
13097
13098/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13099struct WordBreakingTokenizer<'a> {
13100 input: &'a str,
13101}
13102
13103impl<'a> WordBreakingTokenizer<'a> {
13104 fn new(input: &'a str) -> Self {
13105 Self { input }
13106 }
13107}
13108
13109fn is_char_ideographic(ch: char) -> bool {
13110 use unicode_script::Script::*;
13111 use unicode_script::UnicodeScript;
13112 matches!(ch.script(), Han | Tangut | Yi)
13113}
13114
13115fn is_grapheme_ideographic(text: &str) -> bool {
13116 text.chars().any(is_char_ideographic)
13117}
13118
13119fn is_grapheme_whitespace(text: &str) -> bool {
13120 text.chars().any(|x| x.is_whitespace())
13121}
13122
13123fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13124 text.chars().next().map_or(false, |ch| {
13125 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13126 })
13127}
13128
13129#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13130struct WordBreakToken<'a> {
13131 token: &'a str,
13132 grapheme_len: usize,
13133 is_whitespace: bool,
13134}
13135
13136impl<'a> Iterator for WordBreakingTokenizer<'a> {
13137 /// Yields a span, the count of graphemes in the token, and whether it was
13138 /// whitespace. Note that it also breaks at word boundaries.
13139 type Item = WordBreakToken<'a>;
13140
13141 fn next(&mut self) -> Option<Self::Item> {
13142 use unicode_segmentation::UnicodeSegmentation;
13143 if self.input.is_empty() {
13144 return None;
13145 }
13146
13147 let mut iter = self.input.graphemes(true).peekable();
13148 let mut offset = 0;
13149 let mut graphemes = 0;
13150 if let Some(first_grapheme) = iter.next() {
13151 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13152 offset += first_grapheme.len();
13153 graphemes += 1;
13154 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13155 if let Some(grapheme) = iter.peek().copied() {
13156 if should_stay_with_preceding_ideograph(grapheme) {
13157 offset += grapheme.len();
13158 graphemes += 1;
13159 }
13160 }
13161 } else {
13162 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13163 let mut next_word_bound = words.peek().copied();
13164 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13165 next_word_bound = words.next();
13166 }
13167 while let Some(grapheme) = iter.peek().copied() {
13168 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13169 break;
13170 };
13171 if is_grapheme_whitespace(grapheme) != is_whitespace {
13172 break;
13173 };
13174 offset += grapheme.len();
13175 graphemes += 1;
13176 iter.next();
13177 }
13178 }
13179 let token = &self.input[..offset];
13180 self.input = &self.input[offset..];
13181 if is_whitespace {
13182 Some(WordBreakToken {
13183 token: " ",
13184 grapheme_len: 1,
13185 is_whitespace: true,
13186 })
13187 } else {
13188 Some(WordBreakToken {
13189 token,
13190 grapheme_len: graphemes,
13191 is_whitespace: false,
13192 })
13193 }
13194 } else {
13195 None
13196 }
13197 }
13198}
13199
13200#[test]
13201fn test_word_breaking_tokenizer() {
13202 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13203 ("", &[]),
13204 (" ", &[(" ", 1, true)]),
13205 ("Ʒ", &[("Ʒ", 1, false)]),
13206 ("Ǽ", &[("Ǽ", 1, false)]),
13207 ("⋑", &[("⋑", 1, false)]),
13208 ("⋑⋑", &[("⋑⋑", 2, false)]),
13209 (
13210 "原理，进而",
13211 &[
13212 ("原", 1, false),
13213 ("理，", 2, false),
13214 ("进", 1, false),
13215 ("而", 1, false),
13216 ],
13217 ),
13218 (
13219 "hello world",
13220 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13221 ),
13222 (
13223 "hello, world",
13224 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13225 ),
13226 (
13227 " hello world",
13228 &[
13229 (" ", 1, true),
13230 ("hello", 5, false),
13231 (" ", 1, true),
13232 ("world", 5, false),
13233 ],
13234 ),
13235 (
13236 "这是什么 \n 钢笔",
13237 &[
13238 ("这", 1, false),
13239 ("是", 1, false),
13240 ("什", 1, false),
13241 ("么", 1, false),
13242 (" ", 1, true),
13243 ("钢", 1, false),
13244 ("笔", 1, false),
13245 ],
13246 ),
13247 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13248 ];
13249
13250 for (input, result) in tests {
13251 assert_eq!(
13252 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13253 result
13254 .iter()
13255 .copied()
13256 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13257 token,
13258 grapheme_len,
13259 is_whitespace,
13260 })
13261 .collect::<Vec<_>>()
13262 );
13263 }
13264}
13265
13266fn wrap_with_prefix(
13267 line_prefix: String,
13268 unwrapped_text: String,
13269 wrap_column: usize,
13270 tab_size: NonZeroU32,
13271) -> String {
13272 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13273 let mut wrapped_text = String::new();
13274 let mut current_line = line_prefix.clone();
13275
13276 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13277 let mut current_line_len = line_prefix_len;
13278 for WordBreakToken {
13279 token,
13280 grapheme_len,
13281 is_whitespace,
13282 } in tokenizer
13283 {
13284 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13285 wrapped_text.push_str(current_line.trim_end());
13286 wrapped_text.push('\n');
13287 current_line.truncate(line_prefix.len());
13288 current_line_len = line_prefix_len;
13289 if !is_whitespace {
13290 current_line.push_str(token);
13291 current_line_len += grapheme_len;
13292 }
13293 } else if !is_whitespace {
13294 current_line.push_str(token);
13295 current_line_len += grapheme_len;
13296 } else if current_line_len != line_prefix_len {
13297 current_line.push(' ');
13298 current_line_len += 1;
13299 }
13300 }
13301
13302 if !current_line.is_empty() {
13303 wrapped_text.push_str(¤t_line);
13304 }
13305 wrapped_text
13306}
13307
13308#[test]
13309fn test_wrap_with_prefix() {
13310 assert_eq!(
13311 wrap_with_prefix(
13312 "# ".to_string(),
13313 "abcdefg".to_string(),
13314 4,
13315 NonZeroU32::new(4).unwrap()
13316 ),
13317 "# abcdefg"
13318 );
13319 assert_eq!(
13320 wrap_with_prefix(
13321 "".to_string(),
13322 "\thello world".to_string(),
13323 8,
13324 NonZeroU32::new(4).unwrap()
13325 ),
13326 "hello\nworld"
13327 );
13328 assert_eq!(
13329 wrap_with_prefix(
13330 "// ".to_string(),
13331 "xx \nyy zz aa bb cc".to_string(),
13332 12,
13333 NonZeroU32::new(4).unwrap()
13334 ),
13335 "// xx yy zz\n// aa bb cc"
13336 );
13337 assert_eq!(
13338 wrap_with_prefix(
13339 String::new(),
13340 "这是什么 \n 钢笔".to_string(),
13341 3,
13342 NonZeroU32::new(4).unwrap()
13343 ),
13344 "这是什\n么 钢\n笔"
13345 );
13346}
13347
13348fn hunks_for_selections(
13349 snapshot: &EditorSnapshot,
13350 selections: &[Selection<Point>],
13351) -> Vec<MultiBufferDiffHunk> {
13352 hunks_for_ranges(
13353 selections.iter().map(|selection| selection.range()),
13354 snapshot,
13355 )
13356}
13357
13358pub fn hunks_for_ranges(
13359 ranges: impl Iterator<Item = Range<Point>>,
13360 snapshot: &EditorSnapshot,
13361) -> Vec<MultiBufferDiffHunk> {
13362 let mut hunks = Vec::new();
13363 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13364 HashMap::default();
13365 for query_range in ranges {
13366 let query_rows =
13367 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13368 for hunk in snapshot.diff_map.diff_hunks_in_range(
13369 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13370 &snapshot.buffer_snapshot,
13371 ) {
13372 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13373 // when the caret is just above or just below the deleted hunk.
13374 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13375 let related_to_selection = if allow_adjacent {
13376 hunk.row_range.overlaps(&query_rows)
13377 || hunk.row_range.start == query_rows.end
13378 || hunk.row_range.end == query_rows.start
13379 } else {
13380 hunk.row_range.overlaps(&query_rows)
13381 };
13382 if related_to_selection {
13383 if !processed_buffer_rows
13384 .entry(hunk.buffer_id)
13385 .or_default()
13386 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13387 {
13388 continue;
13389 }
13390 hunks.push(hunk);
13391 }
13392 }
13393 }
13394
13395 hunks
13396}
13397
13398pub trait CollaborationHub {
13399 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13400 fn user_participant_indices<'a>(
13401 &self,
13402 cx: &'a AppContext,
13403 ) -> &'a HashMap<u64, ParticipantIndex>;
13404 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13405}
13406
13407impl CollaborationHub for Model<Project> {
13408 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13409 self.read(cx).collaborators()
13410 }
13411
13412 fn user_participant_indices<'a>(
13413 &self,
13414 cx: &'a AppContext,
13415 ) -> &'a HashMap<u64, ParticipantIndex> {
13416 self.read(cx).user_store().read(cx).participant_indices()
13417 }
13418
13419 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13420 let this = self.read(cx);
13421 let user_ids = this.collaborators().values().map(|c| c.user_id);
13422 this.user_store().read_with(cx, |user_store, cx| {
13423 user_store.participant_names(user_ids, cx)
13424 })
13425 }
13426}
13427
13428pub trait SemanticsProvider {
13429 fn hover(
13430 &self,
13431 buffer: &Model<Buffer>,
13432 position: text::Anchor,
13433 cx: &mut AppContext,
13434 ) -> Option<Task<Vec<project::Hover>>>;
13435
13436 fn inlay_hints(
13437 &self,
13438 buffer_handle: Model<Buffer>,
13439 range: Range<text::Anchor>,
13440 cx: &mut AppContext,
13441 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13442
13443 fn resolve_inlay_hint(
13444 &self,
13445 hint: InlayHint,
13446 buffer_handle: Model<Buffer>,
13447 server_id: LanguageServerId,
13448 cx: &mut AppContext,
13449 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13450
13451 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13452
13453 fn document_highlights(
13454 &self,
13455 buffer: &Model<Buffer>,
13456 position: text::Anchor,
13457 cx: &mut AppContext,
13458 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13459
13460 fn definitions(
13461 &self,
13462 buffer: &Model<Buffer>,
13463 position: text::Anchor,
13464 kind: GotoDefinitionKind,
13465 cx: &mut AppContext,
13466 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13467
13468 fn range_for_rename(
13469 &self,
13470 buffer: &Model<Buffer>,
13471 position: text::Anchor,
13472 cx: &mut AppContext,
13473 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13474
13475 fn perform_rename(
13476 &self,
13477 buffer: &Model<Buffer>,
13478 position: text::Anchor,
13479 new_name: String,
13480 cx: &mut AppContext,
13481 ) -> Option<Task<Result<ProjectTransaction>>>;
13482}
13483
13484pub trait CompletionProvider {
13485 fn completions(
13486 &self,
13487 buffer: &Model<Buffer>,
13488 buffer_position: text::Anchor,
13489 trigger: CompletionContext,
13490 cx: &mut ViewContext<Editor>,
13491 ) -> Task<Result<Vec<Completion>>>;
13492
13493 fn resolve_completions(
13494 &self,
13495 buffer: Model<Buffer>,
13496 completion_indices: Vec<usize>,
13497 completions: Rc<RefCell<Box<[Completion]>>>,
13498 cx: &mut ViewContext<Editor>,
13499 ) -> Task<Result<bool>>;
13500
13501 fn apply_additional_edits_for_completion(
13502 &self,
13503 _buffer: Model<Buffer>,
13504 _completions: Rc<RefCell<Box<[Completion]>>>,
13505 _completion_index: usize,
13506 _push_to_history: bool,
13507 _cx: &mut ViewContext<Editor>,
13508 ) -> Task<Result<Option<language::Transaction>>> {
13509 Task::ready(Ok(None))
13510 }
13511
13512 fn is_completion_trigger(
13513 &self,
13514 buffer: &Model<Buffer>,
13515 position: language::Anchor,
13516 text: &str,
13517 trigger_in_words: bool,
13518 cx: &mut ViewContext<Editor>,
13519 ) -> bool;
13520
13521 fn sort_completions(&self) -> bool {
13522 true
13523 }
13524}
13525
13526pub trait CodeActionProvider {
13527 fn code_actions(
13528 &self,
13529 buffer: &Model<Buffer>,
13530 range: Range<text::Anchor>,
13531 cx: &mut WindowContext,
13532 ) -> Task<Result<Vec<CodeAction>>>;
13533
13534 fn apply_code_action(
13535 &self,
13536 buffer_handle: Model<Buffer>,
13537 action: CodeAction,
13538 excerpt_id: ExcerptId,
13539 push_to_history: bool,
13540 cx: &mut WindowContext,
13541 ) -> Task<Result<ProjectTransaction>>;
13542}
13543
13544impl CodeActionProvider for Model<Project> {
13545 fn code_actions(
13546 &self,
13547 buffer: &Model<Buffer>,
13548 range: Range<text::Anchor>,
13549 cx: &mut WindowContext,
13550 ) -> Task<Result<Vec<CodeAction>>> {
13551 self.update(cx, |project, cx| {
13552 project.code_actions(buffer, range, None, cx)
13553 })
13554 }
13555
13556 fn apply_code_action(
13557 &self,
13558 buffer_handle: Model<Buffer>,
13559 action: CodeAction,
13560 _excerpt_id: ExcerptId,
13561 push_to_history: bool,
13562 cx: &mut WindowContext,
13563 ) -> Task<Result<ProjectTransaction>> {
13564 self.update(cx, |project, cx| {
13565 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13566 })
13567 }
13568}
13569
13570fn snippet_completions(
13571 project: &Project,
13572 buffer: &Model<Buffer>,
13573 buffer_position: text::Anchor,
13574 cx: &mut AppContext,
13575) -> Task<Result<Vec<Completion>>> {
13576 let language = buffer.read(cx).language_at(buffer_position);
13577 let language_name = language.as_ref().map(|language| language.lsp_id());
13578 let snippet_store = project.snippets().read(cx);
13579 let snippets = snippet_store.snippets_for(language_name, cx);
13580
13581 if snippets.is_empty() {
13582 return Task::ready(Ok(vec![]));
13583 }
13584 let snapshot = buffer.read(cx).text_snapshot();
13585 let chars: String = snapshot
13586 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13587 .collect();
13588
13589 let scope = language.map(|language| language.default_scope());
13590 let executor = cx.background_executor().clone();
13591
13592 cx.background_executor().spawn(async move {
13593 let classifier = CharClassifier::new(scope).for_completion(true);
13594 let mut last_word = chars
13595 .chars()
13596 .take_while(|c| classifier.is_word(*c))
13597 .collect::<String>();
13598 last_word = last_word.chars().rev().collect();
13599
13600 if last_word.is_empty() {
13601 return Ok(vec![]);
13602 }
13603
13604 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13605 let to_lsp = |point: &text::Anchor| {
13606 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13607 point_to_lsp(end)
13608 };
13609 let lsp_end = to_lsp(&buffer_position);
13610
13611 let candidates = snippets
13612 .iter()
13613 .enumerate()
13614 .flat_map(|(ix, snippet)| {
13615 snippet
13616 .prefix
13617 .iter()
13618 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13619 })
13620 .collect::<Vec<StringMatchCandidate>>();
13621
13622 let mut matches = fuzzy::match_strings(
13623 &candidates,
13624 &last_word,
13625 last_word.chars().any(|c| c.is_uppercase()),
13626 100,
13627 &Default::default(),
13628 executor,
13629 )
13630 .await;
13631
13632 // Remove all candidates where the query's start does not match the start of any word in the candidate
13633 if let Some(query_start) = last_word.chars().next() {
13634 matches.retain(|string_match| {
13635 split_words(&string_match.string).any(|word| {
13636 // Check that the first codepoint of the word as lowercase matches the first
13637 // codepoint of the query as lowercase
13638 word.chars()
13639 .flat_map(|codepoint| codepoint.to_lowercase())
13640 .zip(query_start.to_lowercase())
13641 .all(|(word_cp, query_cp)| word_cp == query_cp)
13642 })
13643 });
13644 }
13645
13646 let matched_strings = matches
13647 .into_iter()
13648 .map(|m| m.string)
13649 .collect::<HashSet<_>>();
13650
13651 let result: Vec<Completion> = snippets
13652 .into_iter()
13653 .filter_map(|snippet| {
13654 let matching_prefix = snippet
13655 .prefix
13656 .iter()
13657 .find(|prefix| matched_strings.contains(*prefix))?;
13658 let start = as_offset - last_word.len();
13659 let start = snapshot.anchor_before(start);
13660 let range = start..buffer_position;
13661 let lsp_start = to_lsp(&start);
13662 let lsp_range = lsp::Range {
13663 start: lsp_start,
13664 end: lsp_end,
13665 };
13666 Some(Completion {
13667 old_range: range,
13668 new_text: snippet.body.clone(),
13669 resolved: false,
13670 label: CodeLabel {
13671 text: matching_prefix.clone(),
13672 runs: vec![],
13673 filter_range: 0..matching_prefix.len(),
13674 },
13675 server_id: LanguageServerId(usize::MAX),
13676 documentation: snippet.description.clone().map(Documentation::SingleLine),
13677 lsp_completion: lsp::CompletionItem {
13678 label: snippet.prefix.first().unwrap().clone(),
13679 kind: Some(CompletionItemKind::SNIPPET),
13680 label_details: snippet.description.as_ref().map(|description| {
13681 lsp::CompletionItemLabelDetails {
13682 detail: Some(description.clone()),
13683 description: None,
13684 }
13685 }),
13686 insert_text_format: Some(InsertTextFormat::SNIPPET),
13687 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13688 lsp::InsertReplaceEdit {
13689 new_text: snippet.body.clone(),
13690 insert: lsp_range,
13691 replace: lsp_range,
13692 },
13693 )),
13694 filter_text: Some(snippet.body.clone()),
13695 sort_text: Some(char::MAX.to_string()),
13696 ..Default::default()
13697 },
13698 confirm: None,
13699 })
13700 })
13701 .collect();
13702
13703 Ok(result)
13704 })
13705}
13706
13707impl CompletionProvider for Model<Project> {
13708 fn completions(
13709 &self,
13710 buffer: &Model<Buffer>,
13711 buffer_position: text::Anchor,
13712 options: CompletionContext,
13713 cx: &mut ViewContext<Editor>,
13714 ) -> Task<Result<Vec<Completion>>> {
13715 self.update(cx, |project, cx| {
13716 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13717 let project_completions = project.completions(buffer, buffer_position, options, cx);
13718 cx.background_executor().spawn(async move {
13719 let mut completions = project_completions.await?;
13720 let snippets_completions = snippets.await?;
13721 completions.extend(snippets_completions);
13722 Ok(completions)
13723 })
13724 })
13725 }
13726
13727 fn resolve_completions(
13728 &self,
13729 buffer: Model<Buffer>,
13730 completion_indices: Vec<usize>,
13731 completions: Rc<RefCell<Box<[Completion]>>>,
13732 cx: &mut ViewContext<Editor>,
13733 ) -> Task<Result<bool>> {
13734 self.update(cx, |project, cx| {
13735 project.lsp_store().update(cx, |lsp_store, cx| {
13736 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13737 })
13738 })
13739 }
13740
13741 fn apply_additional_edits_for_completion(
13742 &self,
13743 buffer: Model<Buffer>,
13744 completions: Rc<RefCell<Box<[Completion]>>>,
13745 completion_index: usize,
13746 push_to_history: bool,
13747 cx: &mut ViewContext<Editor>,
13748 ) -> Task<Result<Option<language::Transaction>>> {
13749 self.update(cx, |project, cx| {
13750 project.lsp_store().update(cx, |lsp_store, cx| {
13751 lsp_store.apply_additional_edits_for_completion(
13752 buffer,
13753 completions,
13754 completion_index,
13755 push_to_history,
13756 cx,
13757 )
13758 })
13759 })
13760 }
13761
13762 fn is_completion_trigger(
13763 &self,
13764 buffer: &Model<Buffer>,
13765 position: language::Anchor,
13766 text: &str,
13767 trigger_in_words: bool,
13768 cx: &mut ViewContext<Editor>,
13769 ) -> bool {
13770 let mut chars = text.chars();
13771 let char = if let Some(char) = chars.next() {
13772 char
13773 } else {
13774 return false;
13775 };
13776 if chars.next().is_some() {
13777 return false;
13778 }
13779
13780 let buffer = buffer.read(cx);
13781 let snapshot = buffer.snapshot();
13782 if !snapshot.settings_at(position, cx).show_completions_on_input {
13783 return false;
13784 }
13785 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13786 if trigger_in_words && classifier.is_word(char) {
13787 return true;
13788 }
13789
13790 buffer.completion_triggers().contains(text)
13791 }
13792}
13793
13794impl SemanticsProvider for Model<Project> {
13795 fn hover(
13796 &self,
13797 buffer: &Model<Buffer>,
13798 position: text::Anchor,
13799 cx: &mut AppContext,
13800 ) -> Option<Task<Vec<project::Hover>>> {
13801 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13802 }
13803
13804 fn document_highlights(
13805 &self,
13806 buffer: &Model<Buffer>,
13807 position: text::Anchor,
13808 cx: &mut AppContext,
13809 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13810 Some(self.update(cx, |project, cx| {
13811 project.document_highlights(buffer, position, cx)
13812 }))
13813 }
13814
13815 fn definitions(
13816 &self,
13817 buffer: &Model<Buffer>,
13818 position: text::Anchor,
13819 kind: GotoDefinitionKind,
13820 cx: &mut AppContext,
13821 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13822 Some(self.update(cx, |project, cx| match kind {
13823 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13824 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13825 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13826 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13827 }))
13828 }
13829
13830 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13831 // TODO: make this work for remote projects
13832 self.read(cx)
13833 .language_servers_for_local_buffer(buffer.read(cx), cx)
13834 .any(
13835 |(_, server)| match server.capabilities().inlay_hint_provider {
13836 Some(lsp::OneOf::Left(enabled)) => enabled,
13837 Some(lsp::OneOf::Right(_)) => true,
13838 None => false,
13839 },
13840 )
13841 }
13842
13843 fn inlay_hints(
13844 &self,
13845 buffer_handle: Model<Buffer>,
13846 range: Range<text::Anchor>,
13847 cx: &mut AppContext,
13848 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13849 Some(self.update(cx, |project, cx| {
13850 project.inlay_hints(buffer_handle, range, cx)
13851 }))
13852 }
13853
13854 fn resolve_inlay_hint(
13855 &self,
13856 hint: InlayHint,
13857 buffer_handle: Model<Buffer>,
13858 server_id: LanguageServerId,
13859 cx: &mut AppContext,
13860 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13861 Some(self.update(cx, |project, cx| {
13862 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13863 }))
13864 }
13865
13866 fn range_for_rename(
13867 &self,
13868 buffer: &Model<Buffer>,
13869 position: text::Anchor,
13870 cx: &mut AppContext,
13871 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13872 Some(self.update(cx, |project, cx| {
13873 project.prepare_rename(buffer.clone(), position, cx)
13874 }))
13875 }
13876
13877 fn perform_rename(
13878 &self,
13879 buffer: &Model<Buffer>,
13880 position: text::Anchor,
13881 new_name: String,
13882 cx: &mut AppContext,
13883 ) -> Option<Task<Result<ProjectTransaction>>> {
13884 Some(self.update(cx, |project, cx| {
13885 project.perform_rename(buffer.clone(), position, new_name, cx)
13886 }))
13887 }
13888}
13889
13890fn inlay_hint_settings(
13891 location: Anchor,
13892 snapshot: &MultiBufferSnapshot,
13893 cx: &mut ViewContext<Editor>,
13894) -> InlayHintSettings {
13895 let file = snapshot.file_at(location);
13896 let language = snapshot.language_at(location).map(|l| l.name());
13897 language_settings(language, file, cx).inlay_hints
13898}
13899
13900fn consume_contiguous_rows(
13901 contiguous_row_selections: &mut Vec<Selection<Point>>,
13902 selection: &Selection<Point>,
13903 display_map: &DisplaySnapshot,
13904 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13905) -> (MultiBufferRow, MultiBufferRow) {
13906 contiguous_row_selections.push(selection.clone());
13907 let start_row = MultiBufferRow(selection.start.row);
13908 let mut end_row = ending_row(selection, display_map);
13909
13910 while let Some(next_selection) = selections.peek() {
13911 if next_selection.start.row <= end_row.0 {
13912 end_row = ending_row(next_selection, display_map);
13913 contiguous_row_selections.push(selections.next().unwrap().clone());
13914 } else {
13915 break;
13916 }
13917 }
13918 (start_row, end_row)
13919}
13920
13921fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13922 if next_selection.end.column > 0 || next_selection.is_empty() {
13923 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13924 } else {
13925 MultiBufferRow(next_selection.end.row)
13926 }
13927}
13928
13929impl EditorSnapshot {
13930 pub fn remote_selections_in_range<'a>(
13931 &'a self,
13932 range: &'a Range<Anchor>,
13933 collaboration_hub: &dyn CollaborationHub,
13934 cx: &'a AppContext,
13935 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13936 let participant_names = collaboration_hub.user_names(cx);
13937 let participant_indices = collaboration_hub.user_participant_indices(cx);
13938 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13939 let collaborators_by_replica_id = collaborators_by_peer_id
13940 .iter()
13941 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13942 .collect::<HashMap<_, _>>();
13943 self.buffer_snapshot
13944 .selections_in_range(range, false)
13945 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13946 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13947 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13948 let user_name = participant_names.get(&collaborator.user_id).cloned();
13949 Some(RemoteSelection {
13950 replica_id,
13951 selection,
13952 cursor_shape,
13953 line_mode,
13954 participant_index,
13955 peer_id: collaborator.peer_id,
13956 user_name,
13957 })
13958 })
13959 }
13960
13961 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13962 self.display_snapshot.buffer_snapshot.language_at(position)
13963 }
13964
13965 pub fn is_focused(&self) -> bool {
13966 self.is_focused
13967 }
13968
13969 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13970 self.placeholder_text.as_ref()
13971 }
13972
13973 pub fn scroll_position(&self) -> gpui::Point<f32> {
13974 self.scroll_anchor.scroll_position(&self.display_snapshot)
13975 }
13976
13977 fn gutter_dimensions(
13978 &self,
13979 font_id: FontId,
13980 font_size: Pixels,
13981 em_width: Pixels,
13982 em_advance: Pixels,
13983 max_line_number_width: Pixels,
13984 cx: &AppContext,
13985 ) -> GutterDimensions {
13986 if !self.show_gutter {
13987 return GutterDimensions::default();
13988 }
13989 let descent = cx.text_system().descent(font_id, font_size);
13990
13991 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13992 matches!(
13993 ProjectSettings::get_global(cx).git.git_gutter,
13994 Some(GitGutterSetting::TrackedFiles)
13995 )
13996 });
13997 let gutter_settings = EditorSettings::get_global(cx).gutter;
13998 let show_line_numbers = self
13999 .show_line_numbers
14000 .unwrap_or(gutter_settings.line_numbers);
14001 let line_gutter_width = if show_line_numbers {
14002 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14003 let min_width_for_number_on_gutter = em_advance * 4.0;
14004 max_line_number_width.max(min_width_for_number_on_gutter)
14005 } else {
14006 0.0.into()
14007 };
14008
14009 let show_code_actions = self
14010 .show_code_actions
14011 .unwrap_or(gutter_settings.code_actions);
14012
14013 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14014
14015 let git_blame_entries_width =
14016 self.git_blame_gutter_max_author_length
14017 .map(|max_author_length| {
14018 // Length of the author name, but also space for the commit hash,
14019 // the spacing and the timestamp.
14020 let max_char_count = max_author_length
14021 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14022 + 7 // length of commit sha
14023 + 14 // length of max relative timestamp ("60 minutes ago")
14024 + 4; // gaps and margins
14025
14026 em_advance * max_char_count
14027 });
14028
14029 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14030 left_padding += if show_code_actions || show_runnables {
14031 em_width * 3.0
14032 } else if show_git_gutter && show_line_numbers {
14033 em_width * 2.0
14034 } else if show_git_gutter || show_line_numbers {
14035 em_width
14036 } else {
14037 px(0.)
14038 };
14039
14040 let right_padding = if gutter_settings.folds && show_line_numbers {
14041 em_width * 4.0
14042 } else if gutter_settings.folds {
14043 em_width * 3.0
14044 } else if show_line_numbers {
14045 em_width
14046 } else {
14047 px(0.)
14048 };
14049
14050 GutterDimensions {
14051 left_padding,
14052 right_padding,
14053 width: line_gutter_width + left_padding + right_padding,
14054 margin: -descent,
14055 git_blame_entries_width,
14056 }
14057 }
14058
14059 pub fn render_crease_toggle(
14060 &self,
14061 buffer_row: MultiBufferRow,
14062 row_contains_cursor: bool,
14063 editor: View<Editor>,
14064 cx: &mut WindowContext,
14065 ) -> Option<AnyElement> {
14066 let folded = self.is_line_folded(buffer_row);
14067 let mut is_foldable = false;
14068
14069 if let Some(crease) = self
14070 .crease_snapshot
14071 .query_row(buffer_row, &self.buffer_snapshot)
14072 {
14073 is_foldable = true;
14074 match crease {
14075 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14076 if let Some(render_toggle) = render_toggle {
14077 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14078 if folded {
14079 editor.update(cx, |editor, cx| {
14080 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14081 });
14082 } else {
14083 editor.update(cx, |editor, cx| {
14084 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14085 });
14086 }
14087 });
14088 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14089 }
14090 }
14091 }
14092 }
14093
14094 is_foldable |= self.starts_indent(buffer_row);
14095
14096 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14097 Some(
14098 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14099 .toggle_state(folded)
14100 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14101 if folded {
14102 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14103 } else {
14104 this.fold_at(&FoldAt { buffer_row }, cx);
14105 }
14106 }))
14107 .into_any_element(),
14108 )
14109 } else {
14110 None
14111 }
14112 }
14113
14114 pub fn render_crease_trailer(
14115 &self,
14116 buffer_row: MultiBufferRow,
14117 cx: &mut WindowContext,
14118 ) -> Option<AnyElement> {
14119 let folded = self.is_line_folded(buffer_row);
14120 if let Crease::Inline { render_trailer, .. } = self
14121 .crease_snapshot
14122 .query_row(buffer_row, &self.buffer_snapshot)?
14123 {
14124 let render_trailer = render_trailer.as_ref()?;
14125 Some(render_trailer(buffer_row, folded, cx))
14126 } else {
14127 None
14128 }
14129 }
14130}
14131
14132impl Deref for EditorSnapshot {
14133 type Target = DisplaySnapshot;
14134
14135 fn deref(&self) -> &Self::Target {
14136 &self.display_snapshot
14137 }
14138}
14139
14140#[derive(Clone, Debug, PartialEq, Eq)]
14141pub enum EditorEvent {
14142 InputIgnored {
14143 text: Arc<str>,
14144 },
14145 InputHandled {
14146 utf16_range_to_replace: Option<Range<isize>>,
14147 text: Arc<str>,
14148 },
14149 ExcerptsAdded {
14150 buffer: Model<Buffer>,
14151 predecessor: ExcerptId,
14152 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14153 },
14154 ExcerptsRemoved {
14155 ids: Vec<ExcerptId>,
14156 },
14157 BufferFoldToggled {
14158 ids: Vec<ExcerptId>,
14159 folded: bool,
14160 },
14161 ExcerptsEdited {
14162 ids: Vec<ExcerptId>,
14163 },
14164 ExcerptsExpanded {
14165 ids: Vec<ExcerptId>,
14166 },
14167 BufferEdited,
14168 Edited {
14169 transaction_id: clock::Lamport,
14170 },
14171 Reparsed(BufferId),
14172 Focused,
14173 FocusedIn,
14174 Blurred,
14175 DirtyChanged,
14176 Saved,
14177 TitleChanged,
14178 DiffBaseChanged,
14179 SelectionsChanged {
14180 local: bool,
14181 },
14182 ScrollPositionChanged {
14183 local: bool,
14184 autoscroll: bool,
14185 },
14186 Closed,
14187 TransactionUndone {
14188 transaction_id: clock::Lamport,
14189 },
14190 TransactionBegun {
14191 transaction_id: clock::Lamport,
14192 },
14193 Reloaded,
14194 CursorShapeChanged,
14195}
14196
14197impl EventEmitter<EditorEvent> for Editor {}
14198
14199impl FocusableView for Editor {
14200 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14201 self.focus_handle.clone()
14202 }
14203}
14204
14205impl Render for Editor {
14206 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14207 let settings = ThemeSettings::get_global(cx);
14208
14209 let mut text_style = match self.mode {
14210 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14211 color: cx.theme().colors().editor_foreground,
14212 font_family: settings.ui_font.family.clone(),
14213 font_features: settings.ui_font.features.clone(),
14214 font_fallbacks: settings.ui_font.fallbacks.clone(),
14215 font_size: rems(0.875).into(),
14216 font_weight: settings.ui_font.weight,
14217 line_height: relative(settings.buffer_line_height.value()),
14218 ..Default::default()
14219 },
14220 EditorMode::Full => TextStyle {
14221 color: cx.theme().colors().editor_foreground,
14222 font_family: settings.buffer_font.family.clone(),
14223 font_features: settings.buffer_font.features.clone(),
14224 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14225 font_size: settings.buffer_font_size(cx).into(),
14226 font_weight: settings.buffer_font.weight,
14227 line_height: relative(settings.buffer_line_height.value()),
14228 ..Default::default()
14229 },
14230 };
14231 if let Some(text_style_refinement) = &self.text_style_refinement {
14232 text_style.refine(text_style_refinement)
14233 }
14234
14235 let background = match self.mode {
14236 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14237 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14238 EditorMode::Full => cx.theme().colors().editor_background,
14239 };
14240
14241 EditorElement::new(
14242 cx.view(),
14243 EditorStyle {
14244 background,
14245 local_player: cx.theme().players().local(),
14246 text: text_style,
14247 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14248 syntax: cx.theme().syntax().clone(),
14249 status: cx.theme().status().clone(),
14250 inlay_hints_style: make_inlay_hints_style(cx),
14251 inline_completion_styles: make_suggestion_styles(cx),
14252 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14253 },
14254 )
14255 }
14256}
14257
14258impl ViewInputHandler for Editor {
14259 fn text_for_range(
14260 &mut self,
14261 range_utf16: Range<usize>,
14262 adjusted_range: &mut Option<Range<usize>>,
14263 cx: &mut ViewContext<Self>,
14264 ) -> Option<String> {
14265 let snapshot = self.buffer.read(cx).read(cx);
14266 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14267 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14268 if (start.0..end.0) != range_utf16 {
14269 adjusted_range.replace(start.0..end.0);
14270 }
14271 Some(snapshot.text_for_range(start..end).collect())
14272 }
14273
14274 fn selected_text_range(
14275 &mut self,
14276 ignore_disabled_input: bool,
14277 cx: &mut ViewContext<Self>,
14278 ) -> Option<UTF16Selection> {
14279 // Prevent the IME menu from appearing when holding down an alphabetic key
14280 // while input is disabled.
14281 if !ignore_disabled_input && !self.input_enabled {
14282 return None;
14283 }
14284
14285 let selection = self.selections.newest::<OffsetUtf16>(cx);
14286 let range = selection.range();
14287
14288 Some(UTF16Selection {
14289 range: range.start.0..range.end.0,
14290 reversed: selection.reversed,
14291 })
14292 }
14293
14294 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14295 let snapshot = self.buffer.read(cx).read(cx);
14296 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14297 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14298 }
14299
14300 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14301 self.clear_highlights::<InputComposition>(cx);
14302 self.ime_transaction.take();
14303 }
14304
14305 fn replace_text_in_range(
14306 &mut self,
14307 range_utf16: Option<Range<usize>>,
14308 text: &str,
14309 cx: &mut ViewContext<Self>,
14310 ) {
14311 if !self.input_enabled {
14312 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14313 return;
14314 }
14315
14316 self.transact(cx, |this, cx| {
14317 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14318 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14319 Some(this.selection_replacement_ranges(range_utf16, cx))
14320 } else {
14321 this.marked_text_ranges(cx)
14322 };
14323
14324 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14325 let newest_selection_id = this.selections.newest_anchor().id;
14326 this.selections
14327 .all::<OffsetUtf16>(cx)
14328 .iter()
14329 .zip(ranges_to_replace.iter())
14330 .find_map(|(selection, range)| {
14331 if selection.id == newest_selection_id {
14332 Some(
14333 (range.start.0 as isize - selection.head().0 as isize)
14334 ..(range.end.0 as isize - selection.head().0 as isize),
14335 )
14336 } else {
14337 None
14338 }
14339 })
14340 });
14341
14342 cx.emit(EditorEvent::InputHandled {
14343 utf16_range_to_replace: range_to_replace,
14344 text: text.into(),
14345 });
14346
14347 if let Some(new_selected_ranges) = new_selected_ranges {
14348 this.change_selections(None, cx, |selections| {
14349 selections.select_ranges(new_selected_ranges)
14350 });
14351 this.backspace(&Default::default(), cx);
14352 }
14353
14354 this.handle_input(text, cx);
14355 });
14356
14357 if let Some(transaction) = self.ime_transaction {
14358 self.buffer.update(cx, |buffer, cx| {
14359 buffer.group_until_transaction(transaction, cx);
14360 });
14361 }
14362
14363 self.unmark_text(cx);
14364 }
14365
14366 fn replace_and_mark_text_in_range(
14367 &mut self,
14368 range_utf16: Option<Range<usize>>,
14369 text: &str,
14370 new_selected_range_utf16: Option<Range<usize>>,
14371 cx: &mut ViewContext<Self>,
14372 ) {
14373 if !self.input_enabled {
14374 return;
14375 }
14376
14377 let transaction = self.transact(cx, |this, cx| {
14378 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14379 let snapshot = this.buffer.read(cx).read(cx);
14380 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14381 for marked_range in &mut marked_ranges {
14382 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14383 marked_range.start.0 += relative_range_utf16.start;
14384 marked_range.start =
14385 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14386 marked_range.end =
14387 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14388 }
14389 }
14390 Some(marked_ranges)
14391 } else if let Some(range_utf16) = range_utf16 {
14392 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14393 Some(this.selection_replacement_ranges(range_utf16, cx))
14394 } else {
14395 None
14396 };
14397
14398 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14399 let newest_selection_id = this.selections.newest_anchor().id;
14400 this.selections
14401 .all::<OffsetUtf16>(cx)
14402 .iter()
14403 .zip(ranges_to_replace.iter())
14404 .find_map(|(selection, range)| {
14405 if selection.id == newest_selection_id {
14406 Some(
14407 (range.start.0 as isize - selection.head().0 as isize)
14408 ..(range.end.0 as isize - selection.head().0 as isize),
14409 )
14410 } else {
14411 None
14412 }
14413 })
14414 });
14415
14416 cx.emit(EditorEvent::InputHandled {
14417 utf16_range_to_replace: range_to_replace,
14418 text: text.into(),
14419 });
14420
14421 if let Some(ranges) = ranges_to_replace {
14422 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14423 }
14424
14425 let marked_ranges = {
14426 let snapshot = this.buffer.read(cx).read(cx);
14427 this.selections
14428 .disjoint_anchors()
14429 .iter()
14430 .map(|selection| {
14431 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14432 })
14433 .collect::<Vec<_>>()
14434 };
14435
14436 if text.is_empty() {
14437 this.unmark_text(cx);
14438 } else {
14439 this.highlight_text::<InputComposition>(
14440 marked_ranges.clone(),
14441 HighlightStyle {
14442 underline: Some(UnderlineStyle {
14443 thickness: px(1.),
14444 color: None,
14445 wavy: false,
14446 }),
14447 ..Default::default()
14448 },
14449 cx,
14450 );
14451 }
14452
14453 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14454 let use_autoclose = this.use_autoclose;
14455 let use_auto_surround = this.use_auto_surround;
14456 this.set_use_autoclose(false);
14457 this.set_use_auto_surround(false);
14458 this.handle_input(text, cx);
14459 this.set_use_autoclose(use_autoclose);
14460 this.set_use_auto_surround(use_auto_surround);
14461
14462 if let Some(new_selected_range) = new_selected_range_utf16 {
14463 let snapshot = this.buffer.read(cx).read(cx);
14464 let new_selected_ranges = marked_ranges
14465 .into_iter()
14466 .map(|marked_range| {
14467 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14468 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14469 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14470 snapshot.clip_offset_utf16(new_start, Bias::Left)
14471 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14472 })
14473 .collect::<Vec<_>>();
14474
14475 drop(snapshot);
14476 this.change_selections(None, cx, |selections| {
14477 selections.select_ranges(new_selected_ranges)
14478 });
14479 }
14480 });
14481
14482 self.ime_transaction = self.ime_transaction.or(transaction);
14483 if let Some(transaction) = self.ime_transaction {
14484 self.buffer.update(cx, |buffer, cx| {
14485 buffer.group_until_transaction(transaction, cx);
14486 });
14487 }
14488
14489 if self.text_highlights::<InputComposition>(cx).is_none() {
14490 self.ime_transaction.take();
14491 }
14492 }
14493
14494 fn bounds_for_range(
14495 &mut self,
14496 range_utf16: Range<usize>,
14497 element_bounds: gpui::Bounds<Pixels>,
14498 cx: &mut ViewContext<Self>,
14499 ) -> Option<gpui::Bounds<Pixels>> {
14500 let text_layout_details = self.text_layout_details(cx);
14501 let gpui::Point {
14502 x: em_width,
14503 y: line_height,
14504 } = self.character_size(cx);
14505
14506 let snapshot = self.snapshot(cx);
14507 let scroll_position = snapshot.scroll_position();
14508 let scroll_left = scroll_position.x * em_width;
14509
14510 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14511 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14512 + self.gutter_dimensions.width
14513 + self.gutter_dimensions.margin;
14514 let y = line_height * (start.row().as_f32() - scroll_position.y);
14515
14516 Some(Bounds {
14517 origin: element_bounds.origin + point(x, y),
14518 size: size(em_width, line_height),
14519 })
14520 }
14521}
14522
14523trait SelectionExt {
14524 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14525 fn spanned_rows(
14526 &self,
14527 include_end_if_at_line_start: bool,
14528 map: &DisplaySnapshot,
14529 ) -> Range<MultiBufferRow>;
14530}
14531
14532impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14533 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14534 let start = self
14535 .start
14536 .to_point(&map.buffer_snapshot)
14537 .to_display_point(map);
14538 let end = self
14539 .end
14540 .to_point(&map.buffer_snapshot)
14541 .to_display_point(map);
14542 if self.reversed {
14543 end..start
14544 } else {
14545 start..end
14546 }
14547 }
14548
14549 fn spanned_rows(
14550 &self,
14551 include_end_if_at_line_start: bool,
14552 map: &DisplaySnapshot,
14553 ) -> Range<MultiBufferRow> {
14554 let start = self.start.to_point(&map.buffer_snapshot);
14555 let mut end = self.end.to_point(&map.buffer_snapshot);
14556 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14557 end.row -= 1;
14558 }
14559
14560 let buffer_start = map.prev_line_boundary(start).0;
14561 let buffer_end = map.next_line_boundary(end).0;
14562 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14563 }
14564}
14565
14566impl<T: InvalidationRegion> InvalidationStack<T> {
14567 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14568 where
14569 S: Clone + ToOffset,
14570 {
14571 while let Some(region) = self.last() {
14572 let all_selections_inside_invalidation_ranges =
14573 if selections.len() == region.ranges().len() {
14574 selections
14575 .iter()
14576 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14577 .all(|(selection, invalidation_range)| {
14578 let head = selection.head().to_offset(buffer);
14579 invalidation_range.start <= head && invalidation_range.end >= head
14580 })
14581 } else {
14582 false
14583 };
14584
14585 if all_selections_inside_invalidation_ranges {
14586 break;
14587 } else {
14588 self.pop();
14589 }
14590 }
14591 }
14592}
14593
14594impl<T> Default for InvalidationStack<T> {
14595 fn default() -> Self {
14596 Self(Default::default())
14597 }
14598}
14599
14600impl<T> Deref for InvalidationStack<T> {
14601 type Target = Vec<T>;
14602
14603 fn deref(&self) -> &Self::Target {
14604 &self.0
14605 }
14606}
14607
14608impl<T> DerefMut for InvalidationStack<T> {
14609 fn deref_mut(&mut self) -> &mut Self::Target {
14610 &mut self.0
14611 }
14612}
14613
14614impl InvalidationRegion for SnippetState {
14615 fn ranges(&self) -> &[Range<Anchor>] {
14616 &self.ranges[self.active_index]
14617 }
14618}
14619
14620pub fn diagnostic_block_renderer(
14621 diagnostic: Diagnostic,
14622 max_message_rows: Option<u8>,
14623 allow_closing: bool,
14624 _is_valid: bool,
14625) -> RenderBlock {
14626 let (text_without_backticks, code_ranges) =
14627 highlight_diagnostic_message(&diagnostic, max_message_rows);
14628
14629 Arc::new(move |cx: &mut BlockContext| {
14630 let group_id: SharedString = cx.block_id.to_string().into();
14631
14632 let mut text_style = cx.text_style().clone();
14633 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14634 let theme_settings = ThemeSettings::get_global(cx);
14635 text_style.font_family = theme_settings.buffer_font.family.clone();
14636 text_style.font_style = theme_settings.buffer_font.style;
14637 text_style.font_features = theme_settings.buffer_font.features.clone();
14638 text_style.font_weight = theme_settings.buffer_font.weight;
14639
14640 let multi_line_diagnostic = diagnostic.message.contains('\n');
14641
14642 let buttons = |diagnostic: &Diagnostic| {
14643 if multi_line_diagnostic {
14644 v_flex()
14645 } else {
14646 h_flex()
14647 }
14648 .when(allow_closing, |div| {
14649 div.children(diagnostic.is_primary.then(|| {
14650 IconButton::new("close-block", IconName::XCircle)
14651 .icon_color(Color::Muted)
14652 .size(ButtonSize::Compact)
14653 .style(ButtonStyle::Transparent)
14654 .visible_on_hover(group_id.clone())
14655 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14656 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14657 }))
14658 })
14659 .child(
14660 IconButton::new("copy-block", IconName::Copy)
14661 .icon_color(Color::Muted)
14662 .size(ButtonSize::Compact)
14663 .style(ButtonStyle::Transparent)
14664 .visible_on_hover(group_id.clone())
14665 .on_click({
14666 let message = diagnostic.message.clone();
14667 move |_click, cx| {
14668 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14669 }
14670 })
14671 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14672 )
14673 };
14674
14675 let icon_size = buttons(&diagnostic)
14676 .into_any_element()
14677 .layout_as_root(AvailableSpace::min_size(), cx);
14678
14679 h_flex()
14680 .id(cx.block_id)
14681 .group(group_id.clone())
14682 .relative()
14683 .size_full()
14684 .block_mouse_down()
14685 .pl(cx.gutter_dimensions.width)
14686 .w(cx.max_width - cx.gutter_dimensions.full_width())
14687 .child(
14688 div()
14689 .flex()
14690 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14691 .flex_shrink(),
14692 )
14693 .child(buttons(&diagnostic))
14694 .child(div().flex().flex_shrink_0().child(
14695 StyledText::new(text_without_backticks.clone()).with_highlights(
14696 &text_style,
14697 code_ranges.iter().map(|range| {
14698 (
14699 range.clone(),
14700 HighlightStyle {
14701 font_weight: Some(FontWeight::BOLD),
14702 ..Default::default()
14703 },
14704 )
14705 }),
14706 ),
14707 ))
14708 .into_any_element()
14709 })
14710}
14711
14712fn inline_completion_edit_text(
14713 editor_snapshot: &EditorSnapshot,
14714 edits: &Vec<(Range<Anchor>, String)>,
14715 include_deletions: bool,
14716 cx: &WindowContext,
14717) -> InlineCompletionText {
14718 let edit_start = edits
14719 .first()
14720 .unwrap()
14721 .0
14722 .start
14723 .to_display_point(editor_snapshot);
14724
14725 let mut text = String::new();
14726 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14727 let mut highlights = Vec::new();
14728 for (old_range, new_text) in edits {
14729 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14730 text.extend(
14731 editor_snapshot
14732 .buffer_snapshot
14733 .chunks(offset..old_offset_range.start, false)
14734 .map(|chunk| chunk.text),
14735 );
14736 offset = old_offset_range.end;
14737
14738 let start = text.len();
14739 let color = if include_deletions && new_text.is_empty() {
14740 text.extend(
14741 editor_snapshot
14742 .buffer_snapshot
14743 .chunks(old_offset_range.start..offset, false)
14744 .map(|chunk| chunk.text),
14745 );
14746 cx.theme().status().deleted_background
14747 } else {
14748 text.push_str(new_text);
14749 cx.theme().status().created_background
14750 };
14751 let end = text.len();
14752
14753 highlights.push((
14754 start..end,
14755 HighlightStyle {
14756 background_color: Some(color),
14757 ..Default::default()
14758 },
14759 ));
14760 }
14761
14762 let edit_end = edits
14763 .last()
14764 .unwrap()
14765 .0
14766 .end
14767 .to_display_point(editor_snapshot);
14768 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14769 .to_offset(editor_snapshot, Bias::Right);
14770 text.extend(
14771 editor_snapshot
14772 .buffer_snapshot
14773 .chunks(offset..end_of_line, false)
14774 .map(|chunk| chunk.text),
14775 );
14776
14777 InlineCompletionText::Edit {
14778 text: text.into(),
14779 highlights,
14780 }
14781}
14782
14783pub fn highlight_diagnostic_message(
14784 diagnostic: &Diagnostic,
14785 mut max_message_rows: Option<u8>,
14786) -> (SharedString, Vec<Range<usize>>) {
14787 let mut text_without_backticks = String::new();
14788 let mut code_ranges = Vec::new();
14789
14790 if let Some(source) = &diagnostic.source {
14791 text_without_backticks.push_str(source);
14792 code_ranges.push(0..source.len());
14793 text_without_backticks.push_str(": ");
14794 }
14795
14796 let mut prev_offset = 0;
14797 let mut in_code_block = false;
14798 let has_row_limit = max_message_rows.is_some();
14799 let mut newline_indices = diagnostic
14800 .message
14801 .match_indices('\n')
14802 .filter(|_| has_row_limit)
14803 .map(|(ix, _)| ix)
14804 .fuse()
14805 .peekable();
14806
14807 for (quote_ix, _) in diagnostic
14808 .message
14809 .match_indices('`')
14810 .chain([(diagnostic.message.len(), "")])
14811 {
14812 let mut first_newline_ix = None;
14813 let mut last_newline_ix = None;
14814 while let Some(newline_ix) = newline_indices.peek() {
14815 if *newline_ix < quote_ix {
14816 if first_newline_ix.is_none() {
14817 first_newline_ix = Some(*newline_ix);
14818 }
14819 last_newline_ix = Some(*newline_ix);
14820
14821 if let Some(rows_left) = &mut max_message_rows {
14822 if *rows_left == 0 {
14823 break;
14824 } else {
14825 *rows_left -= 1;
14826 }
14827 }
14828 let _ = newline_indices.next();
14829 } else {
14830 break;
14831 }
14832 }
14833 let prev_len = text_without_backticks.len();
14834 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14835 text_without_backticks.push_str(new_text);
14836 if in_code_block {
14837 code_ranges.push(prev_len..text_without_backticks.len());
14838 }
14839 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14840 in_code_block = !in_code_block;
14841 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14842 text_without_backticks.push_str("...");
14843 break;
14844 }
14845 }
14846
14847 (text_without_backticks.into(), code_ranges)
14848}
14849
14850fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14851 match severity {
14852 DiagnosticSeverity::ERROR => colors.error,
14853 DiagnosticSeverity::WARNING => colors.warning,
14854 DiagnosticSeverity::INFORMATION => colors.info,
14855 DiagnosticSeverity::HINT => colors.info,
14856 _ => colors.ignored,
14857 }
14858}
14859
14860pub fn styled_runs_for_code_label<'a>(
14861 label: &'a CodeLabel,
14862 syntax_theme: &'a theme::SyntaxTheme,
14863) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14864 let fade_out = HighlightStyle {
14865 fade_out: Some(0.35),
14866 ..Default::default()
14867 };
14868
14869 let mut prev_end = label.filter_range.end;
14870 label
14871 .runs
14872 .iter()
14873 .enumerate()
14874 .flat_map(move |(ix, (range, highlight_id))| {
14875 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14876 style
14877 } else {
14878 return Default::default();
14879 };
14880 let mut muted_style = style;
14881 muted_style.highlight(fade_out);
14882
14883 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14884 if range.start >= label.filter_range.end {
14885 if range.start > prev_end {
14886 runs.push((prev_end..range.start, fade_out));
14887 }
14888 runs.push((range.clone(), muted_style));
14889 } else if range.end <= label.filter_range.end {
14890 runs.push((range.clone(), style));
14891 } else {
14892 runs.push((range.start..label.filter_range.end, style));
14893 runs.push((label.filter_range.end..range.end, muted_style));
14894 }
14895 prev_end = cmp::max(prev_end, range.end);
14896
14897 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14898 runs.push((prev_end..label.text.len(), fade_out));
14899 }
14900
14901 runs
14902 })
14903}
14904
14905pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14906 let mut prev_index = 0;
14907 let mut prev_codepoint: Option<char> = None;
14908 text.char_indices()
14909 .chain([(text.len(), '\0')])
14910 .filter_map(move |(index, codepoint)| {
14911 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14912 let is_boundary = index == text.len()
14913 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14914 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14915 if is_boundary {
14916 let chunk = &text[prev_index..index];
14917 prev_index = index;
14918 Some(chunk)
14919 } else {
14920 None
14921 }
14922 })
14923}
14924
14925pub trait RangeToAnchorExt: Sized {
14926 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14927
14928 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14929 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14930 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14931 }
14932}
14933
14934impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14935 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14936 let start_offset = self.start.to_offset(snapshot);
14937 let end_offset = self.end.to_offset(snapshot);
14938 if start_offset == end_offset {
14939 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14940 } else {
14941 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14942 }
14943 }
14944}
14945
14946pub trait RowExt {
14947 fn as_f32(&self) -> f32;
14948
14949 fn next_row(&self) -> Self;
14950
14951 fn previous_row(&self) -> Self;
14952
14953 fn minus(&self, other: Self) -> u32;
14954}
14955
14956impl RowExt for DisplayRow {
14957 fn as_f32(&self) -> f32 {
14958 self.0 as f32
14959 }
14960
14961 fn next_row(&self) -> Self {
14962 Self(self.0 + 1)
14963 }
14964
14965 fn previous_row(&self) -> Self {
14966 Self(self.0.saturating_sub(1))
14967 }
14968
14969 fn minus(&self, other: Self) -> u32 {
14970 self.0 - other.0
14971 }
14972}
14973
14974impl RowExt for MultiBufferRow {
14975 fn as_f32(&self) -> f32 {
14976 self.0 as f32
14977 }
14978
14979 fn next_row(&self) -> Self {
14980 Self(self.0 + 1)
14981 }
14982
14983 fn previous_row(&self) -> Self {
14984 Self(self.0.saturating_sub(1))
14985 }
14986
14987 fn minus(&self, other: Self) -> u32 {
14988 self.0 - other.0
14989 }
14990}
14991
14992trait RowRangeExt {
14993 type Row;
14994
14995 fn len(&self) -> usize;
14996
14997 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
14998}
14999
15000impl RowRangeExt for Range<MultiBufferRow> {
15001 type Row = MultiBufferRow;
15002
15003 fn len(&self) -> usize {
15004 (self.end.0 - self.start.0) as usize
15005 }
15006
15007 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15008 (self.start.0..self.end.0).map(MultiBufferRow)
15009 }
15010}
15011
15012impl RowRangeExt for Range<DisplayRow> {
15013 type Row = DisplayRow;
15014
15015 fn len(&self) -> usize {
15016 (self.end.0 - self.start.0) as usize
15017 }
15018
15019 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15020 (self.start.0..self.end.0).map(DisplayRow)
15021 }
15022}
15023
15024fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15025 if hunk.diff_base_byte_range.is_empty() {
15026 DiffHunkStatus::Added
15027 } else if hunk.row_range.is_empty() {
15028 DiffHunkStatus::Removed
15029 } else {
15030 DiffHunkStatus::Modified
15031 }
15032}
15033
15034/// If select range has more than one line, we
15035/// just point the cursor to range.start.
15036fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15037 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15038 range
15039 } else {
15040 range.start..range.start
15041 }
15042}
15043
15044pub struct KillRing(ClipboardItem);
15045impl Global for KillRing {}
15046
15047const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);