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 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 pub 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 entries = completions_menu.entries.borrow();
3819 let mat = entries.get(item_ix.unwrap_or(completions_menu.selected_item))?;
3820 let mat = match mat {
3821 CompletionEntry::InlineCompletionHint { .. } => {
3822 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3823 cx.stop_propagation();
3824 return Some(Task::ready(Ok(())));
3825 }
3826 CompletionEntry::Match(mat) => {
3827 if self.show_inline_completions_in_menu(cx) {
3828 self.discard_inline_completion(true, cx);
3829 }
3830 mat
3831 }
3832 };
3833 let candidate_id = mat.candidate_id;
3834 drop(entries);
3835
3836 let buffer_handle = completions_menu.buffer;
3837 let completion = completions_menu
3838 .completions
3839 .borrow()
3840 .get(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 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 pub 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) => {
5114 menu.entries.borrow().first().map_or(false, |entry| {
5115 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5116 })
5117 }
5118 CodeContextMenu::CodeActions(_) => false,
5119 })
5120 }
5121
5122 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5123 self.context_menu
5124 .borrow()
5125 .as_ref()
5126 .map(|menu| menu.origin(cursor_position))
5127 }
5128
5129 fn render_context_menu(
5130 &self,
5131 style: &EditorStyle,
5132 max_height_in_lines: u32,
5133 cx: &mut ViewContext<Editor>,
5134 ) -> Option<AnyElement> {
5135 self.context_menu.borrow().as_ref().and_then(|menu| {
5136 if menu.visible() {
5137 Some(menu.render(style, max_height_in_lines, cx))
5138 } else {
5139 None
5140 }
5141 })
5142 }
5143
5144 fn render_context_menu_aside(
5145 &self,
5146 style: &EditorStyle,
5147 max_size: Size<Pixels>,
5148 cx: &mut ViewContext<Editor>,
5149 ) -> Option<AnyElement> {
5150 self.context_menu.borrow().as_ref().and_then(|menu| {
5151 if menu.visible() {
5152 menu.render_aside(
5153 style,
5154 max_size,
5155 self.workspace.as_ref().map(|(w, _)| w.clone()),
5156 cx,
5157 )
5158 } else {
5159 None
5160 }
5161 })
5162 }
5163
5164 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5165 cx.notify();
5166 self.completion_tasks.clear();
5167 let context_menu = self.context_menu.borrow_mut().take();
5168 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5169 self.update_visible_inline_completion(cx);
5170 }
5171 context_menu
5172 }
5173
5174 fn show_snippet_choices(
5175 &mut self,
5176 choices: &Vec<String>,
5177 selection: Range<Anchor>,
5178 cx: &mut ViewContext<Self>,
5179 ) {
5180 if selection.start.buffer_id.is_none() {
5181 return;
5182 }
5183 let buffer_id = selection.start.buffer_id.unwrap();
5184 let buffer = self.buffer().read(cx).buffer(buffer_id);
5185 let id = post_inc(&mut self.next_completion_id);
5186
5187 if let Some(buffer) = buffer {
5188 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5189 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5190 ));
5191 }
5192 }
5193
5194 pub fn insert_snippet(
5195 &mut self,
5196 insertion_ranges: &[Range<usize>],
5197 snippet: Snippet,
5198 cx: &mut ViewContext<Self>,
5199 ) -> Result<()> {
5200 struct Tabstop<T> {
5201 is_end_tabstop: bool,
5202 ranges: Vec<Range<T>>,
5203 choices: Option<Vec<String>>,
5204 }
5205
5206 let tabstops = self.buffer.update(cx, |buffer, cx| {
5207 let snippet_text: Arc<str> = snippet.text.clone().into();
5208 buffer.edit(
5209 insertion_ranges
5210 .iter()
5211 .cloned()
5212 .map(|range| (range, snippet_text.clone())),
5213 Some(AutoindentMode::EachLine),
5214 cx,
5215 );
5216
5217 let snapshot = &*buffer.read(cx);
5218 let snippet = &snippet;
5219 snippet
5220 .tabstops
5221 .iter()
5222 .map(|tabstop| {
5223 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5224 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5225 });
5226 let mut tabstop_ranges = tabstop
5227 .ranges
5228 .iter()
5229 .flat_map(|tabstop_range| {
5230 let mut delta = 0_isize;
5231 insertion_ranges.iter().map(move |insertion_range| {
5232 let insertion_start = insertion_range.start as isize + delta;
5233 delta +=
5234 snippet.text.len() as isize - insertion_range.len() as isize;
5235
5236 let start = ((insertion_start + tabstop_range.start) as usize)
5237 .min(snapshot.len());
5238 let end = ((insertion_start + tabstop_range.end) as usize)
5239 .min(snapshot.len());
5240 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5241 })
5242 })
5243 .collect::<Vec<_>>();
5244 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5245
5246 Tabstop {
5247 is_end_tabstop,
5248 ranges: tabstop_ranges,
5249 choices: tabstop.choices.clone(),
5250 }
5251 })
5252 .collect::<Vec<_>>()
5253 });
5254 if let Some(tabstop) = tabstops.first() {
5255 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5256 s.select_ranges(tabstop.ranges.iter().cloned());
5257 });
5258
5259 if let Some(choices) = &tabstop.choices {
5260 if let Some(selection) = tabstop.ranges.first() {
5261 self.show_snippet_choices(choices, selection.clone(), cx)
5262 }
5263 }
5264
5265 // If we're already at the last tabstop and it's at the end of the snippet,
5266 // we're done, we don't need to keep the state around.
5267 if !tabstop.is_end_tabstop {
5268 let choices = tabstops
5269 .iter()
5270 .map(|tabstop| tabstop.choices.clone())
5271 .collect();
5272
5273 let ranges = tabstops
5274 .into_iter()
5275 .map(|tabstop| tabstop.ranges)
5276 .collect::<Vec<_>>();
5277
5278 self.snippet_stack.push(SnippetState {
5279 active_index: 0,
5280 ranges,
5281 choices,
5282 });
5283 }
5284
5285 // Check whether the just-entered snippet ends with an auto-closable bracket.
5286 if self.autoclose_regions.is_empty() {
5287 let snapshot = self.buffer.read(cx).snapshot(cx);
5288 for selection in &mut self.selections.all::<Point>(cx) {
5289 let selection_head = selection.head();
5290 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5291 continue;
5292 };
5293
5294 let mut bracket_pair = None;
5295 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5296 let prev_chars = snapshot
5297 .reversed_chars_at(selection_head)
5298 .collect::<String>();
5299 for (pair, enabled) in scope.brackets() {
5300 if enabled
5301 && pair.close
5302 && prev_chars.starts_with(pair.start.as_str())
5303 && next_chars.starts_with(pair.end.as_str())
5304 {
5305 bracket_pair = Some(pair.clone());
5306 break;
5307 }
5308 }
5309 if let Some(pair) = bracket_pair {
5310 let start = snapshot.anchor_after(selection_head);
5311 let end = snapshot.anchor_after(selection_head);
5312 self.autoclose_regions.push(AutocloseRegion {
5313 selection_id: selection.id,
5314 range: start..end,
5315 pair,
5316 });
5317 }
5318 }
5319 }
5320 }
5321 Ok(())
5322 }
5323
5324 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5325 self.move_to_snippet_tabstop(Bias::Right, cx)
5326 }
5327
5328 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5329 self.move_to_snippet_tabstop(Bias::Left, cx)
5330 }
5331
5332 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5333 if let Some(mut snippet) = self.snippet_stack.pop() {
5334 match bias {
5335 Bias::Left => {
5336 if snippet.active_index > 0 {
5337 snippet.active_index -= 1;
5338 } else {
5339 self.snippet_stack.push(snippet);
5340 return false;
5341 }
5342 }
5343 Bias::Right => {
5344 if snippet.active_index + 1 < snippet.ranges.len() {
5345 snippet.active_index += 1;
5346 } else {
5347 self.snippet_stack.push(snippet);
5348 return false;
5349 }
5350 }
5351 }
5352 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5353 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5354 s.select_anchor_ranges(current_ranges.iter().cloned())
5355 });
5356
5357 if let Some(choices) = &snippet.choices[snippet.active_index] {
5358 if let Some(selection) = current_ranges.first() {
5359 self.show_snippet_choices(&choices, selection.clone(), cx);
5360 }
5361 }
5362
5363 // If snippet state is not at the last tabstop, push it back on the stack
5364 if snippet.active_index + 1 < snippet.ranges.len() {
5365 self.snippet_stack.push(snippet);
5366 }
5367 return true;
5368 }
5369 }
5370
5371 false
5372 }
5373
5374 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5375 self.transact(cx, |this, cx| {
5376 this.select_all(&SelectAll, cx);
5377 this.insert("", cx);
5378 });
5379 }
5380
5381 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5382 self.transact(cx, |this, cx| {
5383 this.select_autoclose_pair(cx);
5384 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5385 if !this.linked_edit_ranges.is_empty() {
5386 let selections = this.selections.all::<MultiBufferPoint>(cx);
5387 let snapshot = this.buffer.read(cx).snapshot(cx);
5388
5389 for selection in selections.iter() {
5390 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5391 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5392 if selection_start.buffer_id != selection_end.buffer_id {
5393 continue;
5394 }
5395 if let Some(ranges) =
5396 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5397 {
5398 for (buffer, entries) in ranges {
5399 linked_ranges.entry(buffer).or_default().extend(entries);
5400 }
5401 }
5402 }
5403 }
5404
5405 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5406 if !this.selections.line_mode {
5407 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5408 for selection in &mut selections {
5409 if selection.is_empty() {
5410 let old_head = selection.head();
5411 let mut new_head =
5412 movement::left(&display_map, old_head.to_display_point(&display_map))
5413 .to_point(&display_map);
5414 if let Some((buffer, line_buffer_range)) = display_map
5415 .buffer_snapshot
5416 .buffer_line_for_row(MultiBufferRow(old_head.row))
5417 {
5418 let indent_size =
5419 buffer.indent_size_for_line(line_buffer_range.start.row);
5420 let indent_len = match indent_size.kind {
5421 IndentKind::Space => {
5422 buffer.settings_at(line_buffer_range.start, cx).tab_size
5423 }
5424 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5425 };
5426 if old_head.column <= indent_size.len && old_head.column > 0 {
5427 let indent_len = indent_len.get();
5428 new_head = cmp::min(
5429 new_head,
5430 MultiBufferPoint::new(
5431 old_head.row,
5432 ((old_head.column - 1) / indent_len) * indent_len,
5433 ),
5434 );
5435 }
5436 }
5437
5438 selection.set_head(new_head, SelectionGoal::None);
5439 }
5440 }
5441 }
5442
5443 this.signature_help_state.set_backspace_pressed(true);
5444 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5445 this.insert("", cx);
5446 let empty_str: Arc<str> = Arc::from("");
5447 for (buffer, edits) in linked_ranges {
5448 let snapshot = buffer.read(cx).snapshot();
5449 use text::ToPoint as TP;
5450
5451 let edits = edits
5452 .into_iter()
5453 .map(|range| {
5454 let end_point = TP::to_point(&range.end, &snapshot);
5455 let mut start_point = TP::to_point(&range.start, &snapshot);
5456
5457 if end_point == start_point {
5458 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5459 .saturating_sub(1);
5460 start_point =
5461 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5462 };
5463
5464 (start_point..end_point, empty_str.clone())
5465 })
5466 .sorted_by_key(|(range, _)| range.start)
5467 .collect::<Vec<_>>();
5468 buffer.update(cx, |this, cx| {
5469 this.edit(edits, None, cx);
5470 })
5471 }
5472 this.refresh_inline_completion(true, false, cx);
5473 linked_editing_ranges::refresh_linked_ranges(this, cx);
5474 });
5475 }
5476
5477 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5478 self.transact(cx, |this, cx| {
5479 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5480 let line_mode = s.line_mode;
5481 s.move_with(|map, selection| {
5482 if selection.is_empty() && !line_mode {
5483 let cursor = movement::right(map, selection.head());
5484 selection.end = cursor;
5485 selection.reversed = true;
5486 selection.goal = SelectionGoal::None;
5487 }
5488 })
5489 });
5490 this.insert("", cx);
5491 this.refresh_inline_completion(true, false, cx);
5492 });
5493 }
5494
5495 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5496 if self.move_to_prev_snippet_tabstop(cx) {
5497 return;
5498 }
5499
5500 self.outdent(&Outdent, cx);
5501 }
5502
5503 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5504 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5505 return;
5506 }
5507
5508 let mut selections = self.selections.all_adjusted(cx);
5509 let buffer = self.buffer.read(cx);
5510 let snapshot = buffer.snapshot(cx);
5511 let rows_iter = selections.iter().map(|s| s.head().row);
5512 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5513
5514 let mut edits = Vec::new();
5515 let mut prev_edited_row = 0;
5516 let mut row_delta = 0;
5517 for selection in &mut selections {
5518 if selection.start.row != prev_edited_row {
5519 row_delta = 0;
5520 }
5521 prev_edited_row = selection.end.row;
5522
5523 // If the selection is non-empty, then increase the indentation of the selected lines.
5524 if !selection.is_empty() {
5525 row_delta =
5526 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5527 continue;
5528 }
5529
5530 // If the selection is empty and the cursor is in the leading whitespace before the
5531 // suggested indentation, then auto-indent the line.
5532 let cursor = selection.head();
5533 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5534 if let Some(suggested_indent) =
5535 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5536 {
5537 if cursor.column < suggested_indent.len
5538 && cursor.column <= current_indent.len
5539 && current_indent.len <= suggested_indent.len
5540 {
5541 selection.start = Point::new(cursor.row, suggested_indent.len);
5542 selection.end = selection.start;
5543 if row_delta == 0 {
5544 edits.extend(Buffer::edit_for_indent_size_adjustment(
5545 cursor.row,
5546 current_indent,
5547 suggested_indent,
5548 ));
5549 row_delta = suggested_indent.len - current_indent.len;
5550 }
5551 continue;
5552 }
5553 }
5554
5555 // Otherwise, insert a hard or soft tab.
5556 let settings = buffer.settings_at(cursor, cx);
5557 let tab_size = if settings.hard_tabs {
5558 IndentSize::tab()
5559 } else {
5560 let tab_size = settings.tab_size.get();
5561 let char_column = snapshot
5562 .text_for_range(Point::new(cursor.row, 0)..cursor)
5563 .flat_map(str::chars)
5564 .count()
5565 + row_delta as usize;
5566 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5567 IndentSize::spaces(chars_to_next_tab_stop)
5568 };
5569 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5570 selection.end = selection.start;
5571 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5572 row_delta += tab_size.len;
5573 }
5574
5575 self.transact(cx, |this, cx| {
5576 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5577 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5578 this.refresh_inline_completion(true, false, cx);
5579 });
5580 }
5581
5582 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5583 if self.read_only(cx) {
5584 return;
5585 }
5586 let mut selections = self.selections.all::<Point>(cx);
5587 let mut prev_edited_row = 0;
5588 let mut row_delta = 0;
5589 let mut edits = Vec::new();
5590 let buffer = self.buffer.read(cx);
5591 let snapshot = buffer.snapshot(cx);
5592 for selection in &mut selections {
5593 if selection.start.row != prev_edited_row {
5594 row_delta = 0;
5595 }
5596 prev_edited_row = selection.end.row;
5597
5598 row_delta =
5599 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5600 }
5601
5602 self.transact(cx, |this, cx| {
5603 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5604 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5605 });
5606 }
5607
5608 fn indent_selection(
5609 buffer: &MultiBuffer,
5610 snapshot: &MultiBufferSnapshot,
5611 selection: &mut Selection<Point>,
5612 edits: &mut Vec<(Range<Point>, String)>,
5613 delta_for_start_row: u32,
5614 cx: &AppContext,
5615 ) -> u32 {
5616 let settings = buffer.settings_at(selection.start, cx);
5617 let tab_size = settings.tab_size.get();
5618 let indent_kind = if settings.hard_tabs {
5619 IndentKind::Tab
5620 } else {
5621 IndentKind::Space
5622 };
5623 let mut start_row = selection.start.row;
5624 let mut end_row = selection.end.row + 1;
5625
5626 // If a selection ends at the beginning of a line, don't indent
5627 // that last line.
5628 if selection.end.column == 0 && selection.end.row > selection.start.row {
5629 end_row -= 1;
5630 }
5631
5632 // Avoid re-indenting a row that has already been indented by a
5633 // previous selection, but still update this selection's column
5634 // to reflect that indentation.
5635 if delta_for_start_row > 0 {
5636 start_row += 1;
5637 selection.start.column += delta_for_start_row;
5638 if selection.end.row == selection.start.row {
5639 selection.end.column += delta_for_start_row;
5640 }
5641 }
5642
5643 let mut delta_for_end_row = 0;
5644 let has_multiple_rows = start_row + 1 != end_row;
5645 for row in start_row..end_row {
5646 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5647 let indent_delta = match (current_indent.kind, indent_kind) {
5648 (IndentKind::Space, IndentKind::Space) => {
5649 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5650 IndentSize::spaces(columns_to_next_tab_stop)
5651 }
5652 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5653 (_, IndentKind::Tab) => IndentSize::tab(),
5654 };
5655
5656 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5657 0
5658 } else {
5659 selection.start.column
5660 };
5661 let row_start = Point::new(row, start);
5662 edits.push((
5663 row_start..row_start,
5664 indent_delta.chars().collect::<String>(),
5665 ));
5666
5667 // Update this selection's endpoints to reflect the indentation.
5668 if row == selection.start.row {
5669 selection.start.column += indent_delta.len;
5670 }
5671 if row == selection.end.row {
5672 selection.end.column += indent_delta.len;
5673 delta_for_end_row = indent_delta.len;
5674 }
5675 }
5676
5677 if selection.start.row == selection.end.row {
5678 delta_for_start_row + delta_for_end_row
5679 } else {
5680 delta_for_end_row
5681 }
5682 }
5683
5684 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5685 if self.read_only(cx) {
5686 return;
5687 }
5688 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5689 let selections = self.selections.all::<Point>(cx);
5690 let mut deletion_ranges = Vec::new();
5691 let mut last_outdent = None;
5692 {
5693 let buffer = self.buffer.read(cx);
5694 let snapshot = buffer.snapshot(cx);
5695 for selection in &selections {
5696 let settings = buffer.settings_at(selection.start, cx);
5697 let tab_size = settings.tab_size.get();
5698 let mut rows = selection.spanned_rows(false, &display_map);
5699
5700 // Avoid re-outdenting a row that has already been outdented by a
5701 // previous selection.
5702 if let Some(last_row) = last_outdent {
5703 if last_row == rows.start {
5704 rows.start = rows.start.next_row();
5705 }
5706 }
5707 let has_multiple_rows = rows.len() > 1;
5708 for row in rows.iter_rows() {
5709 let indent_size = snapshot.indent_size_for_line(row);
5710 if indent_size.len > 0 {
5711 let deletion_len = match indent_size.kind {
5712 IndentKind::Space => {
5713 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5714 if columns_to_prev_tab_stop == 0 {
5715 tab_size
5716 } else {
5717 columns_to_prev_tab_stop
5718 }
5719 }
5720 IndentKind::Tab => 1,
5721 };
5722 let start = if has_multiple_rows
5723 || deletion_len > selection.start.column
5724 || indent_size.len < selection.start.column
5725 {
5726 0
5727 } else {
5728 selection.start.column - deletion_len
5729 };
5730 deletion_ranges.push(
5731 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5732 );
5733 last_outdent = Some(row);
5734 }
5735 }
5736 }
5737 }
5738
5739 self.transact(cx, |this, cx| {
5740 this.buffer.update(cx, |buffer, cx| {
5741 let empty_str: Arc<str> = Arc::default();
5742 buffer.edit(
5743 deletion_ranges
5744 .into_iter()
5745 .map(|range| (range, empty_str.clone())),
5746 None,
5747 cx,
5748 );
5749 });
5750 let selections = this.selections.all::<usize>(cx);
5751 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5752 });
5753 }
5754
5755 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5756 if self.read_only(cx) {
5757 return;
5758 }
5759 let selections = self
5760 .selections
5761 .all::<usize>(cx)
5762 .into_iter()
5763 .map(|s| s.range());
5764
5765 self.transact(cx, |this, cx| {
5766 this.buffer.update(cx, |buffer, cx| {
5767 buffer.autoindent_ranges(selections, cx);
5768 });
5769 let selections = this.selections.all::<usize>(cx);
5770 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5771 });
5772 }
5773
5774 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5775 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5776 let selections = self.selections.all::<Point>(cx);
5777
5778 let mut new_cursors = Vec::new();
5779 let mut edit_ranges = Vec::new();
5780 let mut selections = selections.iter().peekable();
5781 while let Some(selection) = selections.next() {
5782 let mut rows = selection.spanned_rows(false, &display_map);
5783 let goal_display_column = selection.head().to_display_point(&display_map).column();
5784
5785 // Accumulate contiguous regions of rows that we want to delete.
5786 while let Some(next_selection) = selections.peek() {
5787 let next_rows = next_selection.spanned_rows(false, &display_map);
5788 if next_rows.start <= rows.end {
5789 rows.end = next_rows.end;
5790 selections.next().unwrap();
5791 } else {
5792 break;
5793 }
5794 }
5795
5796 let buffer = &display_map.buffer_snapshot;
5797 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5798 let edit_end;
5799 let cursor_buffer_row;
5800 if buffer.max_point().row >= rows.end.0 {
5801 // If there's a line after the range, delete the \n from the end of the row range
5802 // and position the cursor on the next line.
5803 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5804 cursor_buffer_row = rows.end;
5805 } else {
5806 // If there isn't a line after the range, delete the \n from the line before the
5807 // start of the row range and position the cursor there.
5808 edit_start = edit_start.saturating_sub(1);
5809 edit_end = buffer.len();
5810 cursor_buffer_row = rows.start.previous_row();
5811 }
5812
5813 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5814 *cursor.column_mut() =
5815 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5816
5817 new_cursors.push((
5818 selection.id,
5819 buffer.anchor_after(cursor.to_point(&display_map)),
5820 ));
5821 edit_ranges.push(edit_start..edit_end);
5822 }
5823
5824 self.transact(cx, |this, cx| {
5825 let buffer = this.buffer.update(cx, |buffer, cx| {
5826 let empty_str: Arc<str> = Arc::default();
5827 buffer.edit(
5828 edit_ranges
5829 .into_iter()
5830 .map(|range| (range, empty_str.clone())),
5831 None,
5832 cx,
5833 );
5834 buffer.snapshot(cx)
5835 });
5836 let new_selections = new_cursors
5837 .into_iter()
5838 .map(|(id, cursor)| {
5839 let cursor = cursor.to_point(&buffer);
5840 Selection {
5841 id,
5842 start: cursor,
5843 end: cursor,
5844 reversed: false,
5845 goal: SelectionGoal::None,
5846 }
5847 })
5848 .collect();
5849
5850 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5851 s.select(new_selections);
5852 });
5853 });
5854 }
5855
5856 pub fn join_lines_impl(&mut self, insert_whitespace: bool, cx: &mut ViewContext<Self>) {
5857 if self.read_only(cx) {
5858 return;
5859 }
5860 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
5861 for selection in self.selections.all::<Point>(cx) {
5862 let start = MultiBufferRow(selection.start.row);
5863 // Treat single line selections as if they include the next line. Otherwise this action
5864 // would do nothing for single line selections individual cursors.
5865 let end = if selection.start.row == selection.end.row {
5866 MultiBufferRow(selection.start.row + 1)
5867 } else {
5868 MultiBufferRow(selection.end.row)
5869 };
5870
5871 if let Some(last_row_range) = row_ranges.last_mut() {
5872 if start <= last_row_range.end {
5873 last_row_range.end = end;
5874 continue;
5875 }
5876 }
5877 row_ranges.push(start..end);
5878 }
5879
5880 let snapshot = self.buffer.read(cx).snapshot(cx);
5881 let mut cursor_positions = Vec::new();
5882 for row_range in &row_ranges {
5883 let anchor = snapshot.anchor_before(Point::new(
5884 row_range.end.previous_row().0,
5885 snapshot.line_len(row_range.end.previous_row()),
5886 ));
5887 cursor_positions.push(anchor..anchor);
5888 }
5889
5890 self.transact(cx, |this, cx| {
5891 for row_range in row_ranges.into_iter().rev() {
5892 for row in row_range.iter_rows().rev() {
5893 let end_of_line = Point::new(row.0, snapshot.line_len(row));
5894 let next_line_row = row.next_row();
5895 let indent = snapshot.indent_size_for_line(next_line_row);
5896 let start_of_next_line = Point::new(next_line_row.0, indent.len);
5897
5898 let replace =
5899 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
5900 " "
5901 } else {
5902 ""
5903 };
5904
5905 this.buffer.update(cx, |buffer, cx| {
5906 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
5907 });
5908 }
5909 }
5910
5911 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5912 s.select_anchor_ranges(cursor_positions)
5913 });
5914 });
5915 }
5916
5917 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
5918 self.join_lines_impl(true, cx);
5919 }
5920
5921 pub fn sort_lines_case_sensitive(
5922 &mut self,
5923 _: &SortLinesCaseSensitive,
5924 cx: &mut ViewContext<Self>,
5925 ) {
5926 self.manipulate_lines(cx, |lines| lines.sort())
5927 }
5928
5929 pub fn sort_lines_case_insensitive(
5930 &mut self,
5931 _: &SortLinesCaseInsensitive,
5932 cx: &mut ViewContext<Self>,
5933 ) {
5934 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
5935 }
5936
5937 pub fn unique_lines_case_insensitive(
5938 &mut self,
5939 _: &UniqueLinesCaseInsensitive,
5940 cx: &mut ViewContext<Self>,
5941 ) {
5942 self.manipulate_lines(cx, |lines| {
5943 let mut seen = HashSet::default();
5944 lines.retain(|line| seen.insert(line.to_lowercase()));
5945 })
5946 }
5947
5948 pub fn unique_lines_case_sensitive(
5949 &mut self,
5950 _: &UniqueLinesCaseSensitive,
5951 cx: &mut ViewContext<Self>,
5952 ) {
5953 self.manipulate_lines(cx, |lines| {
5954 let mut seen = HashSet::default();
5955 lines.retain(|line| seen.insert(*line));
5956 })
5957 }
5958
5959 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
5960 let mut revert_changes = HashMap::default();
5961 let snapshot = self.snapshot(cx);
5962 for hunk in hunks_for_ranges(
5963 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
5964 &snapshot,
5965 ) {
5966 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5967 }
5968 if !revert_changes.is_empty() {
5969 self.transact(cx, |editor, cx| {
5970 editor.revert(revert_changes, cx);
5971 });
5972 }
5973 }
5974
5975 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
5976 let Some(project) = self.project.clone() else {
5977 return;
5978 };
5979 self.reload(project, cx).detach_and_notify_err(cx);
5980 }
5981
5982 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
5983 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
5984 if !revert_changes.is_empty() {
5985 self.transact(cx, |editor, cx| {
5986 editor.revert(revert_changes, cx);
5987 });
5988 }
5989 }
5990
5991 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
5992 let snapshot = self.buffer.read(cx).read(cx);
5993 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
5994 drop(snapshot);
5995 let mut revert_changes = HashMap::default();
5996 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
5997 if !revert_changes.is_empty() {
5998 self.revert(revert_changes, cx)
5999 }
6000 }
6001 }
6002
6003 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6004 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6005 let project_path = buffer.read(cx).project_path(cx)?;
6006 let project = self.project.as_ref()?.read(cx);
6007 let entry = project.entry_for_path(&project_path, cx)?;
6008 let parent = match &entry.canonical_path {
6009 Some(canonical_path) => canonical_path.to_path_buf(),
6010 None => project.absolute_path(&project_path, cx)?,
6011 }
6012 .parent()?
6013 .to_path_buf();
6014 Some(parent)
6015 }) {
6016 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6017 }
6018 }
6019
6020 fn gather_revert_changes(
6021 &mut self,
6022 selections: &[Selection<Point>],
6023 cx: &mut ViewContext<Editor>,
6024 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6025 let mut revert_changes = HashMap::default();
6026 let snapshot = self.snapshot(cx);
6027 for hunk in hunks_for_selections(&snapshot, selections) {
6028 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6029 }
6030 revert_changes
6031 }
6032
6033 pub fn prepare_revert_change(
6034 &mut self,
6035 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6036 hunk: &MultiBufferDiffHunk,
6037 cx: &AppContext,
6038 ) -> Option<()> {
6039 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6040 let buffer = buffer.read(cx);
6041 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6042 let original_text = change_set
6043 .read(cx)
6044 .base_text
6045 .as_ref()?
6046 .read(cx)
6047 .as_rope()
6048 .slice(hunk.diff_base_byte_range.clone());
6049 let buffer_snapshot = buffer.snapshot();
6050 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6051 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6052 probe
6053 .0
6054 .start
6055 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6056 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6057 }) {
6058 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6059 Some(())
6060 } else {
6061 None
6062 }
6063 }
6064
6065 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6066 self.manipulate_lines(cx, |lines| lines.reverse())
6067 }
6068
6069 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6070 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6071 }
6072
6073 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6074 where
6075 Fn: FnMut(&mut Vec<&str>),
6076 {
6077 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6078 let buffer = self.buffer.read(cx).snapshot(cx);
6079
6080 let mut edits = Vec::new();
6081
6082 let selections = self.selections.all::<Point>(cx);
6083 let mut selections = selections.iter().peekable();
6084 let mut contiguous_row_selections = Vec::new();
6085 let mut new_selections = Vec::new();
6086 let mut added_lines = 0;
6087 let mut removed_lines = 0;
6088
6089 while let Some(selection) = selections.next() {
6090 let (start_row, end_row) = consume_contiguous_rows(
6091 &mut contiguous_row_selections,
6092 selection,
6093 &display_map,
6094 &mut selections,
6095 );
6096
6097 let start_point = Point::new(start_row.0, 0);
6098 let end_point = Point::new(
6099 end_row.previous_row().0,
6100 buffer.line_len(end_row.previous_row()),
6101 );
6102 let text = buffer
6103 .text_for_range(start_point..end_point)
6104 .collect::<String>();
6105
6106 let mut lines = text.split('\n').collect_vec();
6107
6108 let lines_before = lines.len();
6109 callback(&mut lines);
6110 let lines_after = lines.len();
6111
6112 edits.push((start_point..end_point, lines.join("\n")));
6113
6114 // Selections must change based on added and removed line count
6115 let start_row =
6116 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6117 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6118 new_selections.push(Selection {
6119 id: selection.id,
6120 start: start_row,
6121 end: end_row,
6122 goal: SelectionGoal::None,
6123 reversed: selection.reversed,
6124 });
6125
6126 if lines_after > lines_before {
6127 added_lines += lines_after - lines_before;
6128 } else if lines_before > lines_after {
6129 removed_lines += lines_before - lines_after;
6130 }
6131 }
6132
6133 self.transact(cx, |this, cx| {
6134 let buffer = this.buffer.update(cx, |buffer, cx| {
6135 buffer.edit(edits, None, cx);
6136 buffer.snapshot(cx)
6137 });
6138
6139 // Recalculate offsets on newly edited buffer
6140 let new_selections = new_selections
6141 .iter()
6142 .map(|s| {
6143 let start_point = Point::new(s.start.0, 0);
6144 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6145 Selection {
6146 id: s.id,
6147 start: buffer.point_to_offset(start_point),
6148 end: buffer.point_to_offset(end_point),
6149 goal: s.goal,
6150 reversed: s.reversed,
6151 }
6152 })
6153 .collect();
6154
6155 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6156 s.select(new_selections);
6157 });
6158
6159 this.request_autoscroll(Autoscroll::fit(), cx);
6160 });
6161 }
6162
6163 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6164 self.manipulate_text(cx, |text| text.to_uppercase())
6165 }
6166
6167 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6168 self.manipulate_text(cx, |text| text.to_lowercase())
6169 }
6170
6171 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6172 self.manipulate_text(cx, |text| {
6173 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6174 // https://github.com/rutrum/convert-case/issues/16
6175 text.split('\n')
6176 .map(|line| line.to_case(Case::Title))
6177 .join("\n")
6178 })
6179 }
6180
6181 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6182 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6183 }
6184
6185 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6186 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6187 }
6188
6189 pub fn convert_to_upper_camel_case(
6190 &mut self,
6191 _: &ConvertToUpperCamelCase,
6192 cx: &mut ViewContext<Self>,
6193 ) {
6194 self.manipulate_text(cx, |text| {
6195 // Hack to get around the fact that to_case crate doesn't support '\n' as a word boundary
6196 // https://github.com/rutrum/convert-case/issues/16
6197 text.split('\n')
6198 .map(|line| line.to_case(Case::UpperCamel))
6199 .join("\n")
6200 })
6201 }
6202
6203 pub fn convert_to_lower_camel_case(
6204 &mut self,
6205 _: &ConvertToLowerCamelCase,
6206 cx: &mut ViewContext<Self>,
6207 ) {
6208 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6209 }
6210
6211 pub fn convert_to_opposite_case(
6212 &mut self,
6213 _: &ConvertToOppositeCase,
6214 cx: &mut ViewContext<Self>,
6215 ) {
6216 self.manipulate_text(cx, |text| {
6217 text.chars()
6218 .fold(String::with_capacity(text.len()), |mut t, c| {
6219 if c.is_uppercase() {
6220 t.extend(c.to_lowercase());
6221 } else {
6222 t.extend(c.to_uppercase());
6223 }
6224 t
6225 })
6226 })
6227 }
6228
6229 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6230 where
6231 Fn: FnMut(&str) -> String,
6232 {
6233 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6234 let buffer = self.buffer.read(cx).snapshot(cx);
6235
6236 let mut new_selections = Vec::new();
6237 let mut edits = Vec::new();
6238 let mut selection_adjustment = 0i32;
6239
6240 for selection in self.selections.all::<usize>(cx) {
6241 let selection_is_empty = selection.is_empty();
6242
6243 let (start, end) = if selection_is_empty {
6244 let word_range = movement::surrounding_word(
6245 &display_map,
6246 selection.start.to_display_point(&display_map),
6247 );
6248 let start = word_range.start.to_offset(&display_map, Bias::Left);
6249 let end = word_range.end.to_offset(&display_map, Bias::Left);
6250 (start, end)
6251 } else {
6252 (selection.start, selection.end)
6253 };
6254
6255 let text = buffer.text_for_range(start..end).collect::<String>();
6256 let old_length = text.len() as i32;
6257 let text = callback(&text);
6258
6259 new_selections.push(Selection {
6260 start: (start as i32 - selection_adjustment) as usize,
6261 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6262 goal: SelectionGoal::None,
6263 ..selection
6264 });
6265
6266 selection_adjustment += old_length - text.len() as i32;
6267
6268 edits.push((start..end, text));
6269 }
6270
6271 self.transact(cx, |this, cx| {
6272 this.buffer.update(cx, |buffer, cx| {
6273 buffer.edit(edits, None, cx);
6274 });
6275
6276 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6277 s.select(new_selections);
6278 });
6279
6280 this.request_autoscroll(Autoscroll::fit(), cx);
6281 });
6282 }
6283
6284 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6285 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6286 let buffer = &display_map.buffer_snapshot;
6287 let selections = self.selections.all::<Point>(cx);
6288
6289 let mut edits = Vec::new();
6290 let mut selections_iter = selections.iter().peekable();
6291 while let Some(selection) = selections_iter.next() {
6292 let mut rows = selection.spanned_rows(false, &display_map);
6293 // duplicate line-wise
6294 if whole_lines || selection.start == selection.end {
6295 // Avoid duplicating the same lines twice.
6296 while let Some(next_selection) = selections_iter.peek() {
6297 let next_rows = next_selection.spanned_rows(false, &display_map);
6298 if next_rows.start < rows.end {
6299 rows.end = next_rows.end;
6300 selections_iter.next().unwrap();
6301 } else {
6302 break;
6303 }
6304 }
6305
6306 // Copy the text from the selected row region and splice it either at the start
6307 // or end of the region.
6308 let start = Point::new(rows.start.0, 0);
6309 let end = Point::new(
6310 rows.end.previous_row().0,
6311 buffer.line_len(rows.end.previous_row()),
6312 );
6313 let text = buffer
6314 .text_for_range(start..end)
6315 .chain(Some("\n"))
6316 .collect::<String>();
6317 let insert_location = if upwards {
6318 Point::new(rows.end.0, 0)
6319 } else {
6320 start
6321 };
6322 edits.push((insert_location..insert_location, text));
6323 } else {
6324 // duplicate character-wise
6325 let start = selection.start;
6326 let end = selection.end;
6327 let text = buffer.text_for_range(start..end).collect::<String>();
6328 edits.push((selection.end..selection.end, text));
6329 }
6330 }
6331
6332 self.transact(cx, |this, cx| {
6333 this.buffer.update(cx, |buffer, cx| {
6334 buffer.edit(edits, None, cx);
6335 });
6336
6337 this.request_autoscroll(Autoscroll::fit(), cx);
6338 });
6339 }
6340
6341 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6342 self.duplicate(true, true, cx);
6343 }
6344
6345 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6346 self.duplicate(false, true, cx);
6347 }
6348
6349 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6350 self.duplicate(false, false, cx);
6351 }
6352
6353 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6354 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6355 let buffer = self.buffer.read(cx).snapshot(cx);
6356
6357 let mut edits = Vec::new();
6358 let mut unfold_ranges = Vec::new();
6359 let mut refold_creases = Vec::new();
6360
6361 let selections = self.selections.all::<Point>(cx);
6362 let mut selections = selections.iter().peekable();
6363 let mut contiguous_row_selections = Vec::new();
6364 let mut new_selections = Vec::new();
6365
6366 while let Some(selection) = selections.next() {
6367 // Find all the selections that span a contiguous row range
6368 let (start_row, end_row) = consume_contiguous_rows(
6369 &mut contiguous_row_selections,
6370 selection,
6371 &display_map,
6372 &mut selections,
6373 );
6374
6375 // Move the text spanned by the row range to be before the line preceding the row range
6376 if start_row.0 > 0 {
6377 let range_to_move = Point::new(
6378 start_row.previous_row().0,
6379 buffer.line_len(start_row.previous_row()),
6380 )
6381 ..Point::new(
6382 end_row.previous_row().0,
6383 buffer.line_len(end_row.previous_row()),
6384 );
6385 let insertion_point = display_map
6386 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6387 .0;
6388
6389 // Don't move lines across excerpts
6390 if buffer
6391 .excerpt_boundaries_in_range((
6392 Bound::Excluded(insertion_point),
6393 Bound::Included(range_to_move.end),
6394 ))
6395 .next()
6396 .is_none()
6397 {
6398 let text = buffer
6399 .text_for_range(range_to_move.clone())
6400 .flat_map(|s| s.chars())
6401 .skip(1)
6402 .chain(['\n'])
6403 .collect::<String>();
6404
6405 edits.push((
6406 buffer.anchor_after(range_to_move.start)
6407 ..buffer.anchor_before(range_to_move.end),
6408 String::new(),
6409 ));
6410 let insertion_anchor = buffer.anchor_after(insertion_point);
6411 edits.push((insertion_anchor..insertion_anchor, text));
6412
6413 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6414
6415 // Move selections up
6416 new_selections.extend(contiguous_row_selections.drain(..).map(
6417 |mut selection| {
6418 selection.start.row -= row_delta;
6419 selection.end.row -= row_delta;
6420 selection
6421 },
6422 ));
6423
6424 // Move folds up
6425 unfold_ranges.push(range_to_move.clone());
6426 for fold in display_map.folds_in_range(
6427 buffer.anchor_before(range_to_move.start)
6428 ..buffer.anchor_after(range_to_move.end),
6429 ) {
6430 let mut start = fold.range.start.to_point(&buffer);
6431 let mut end = fold.range.end.to_point(&buffer);
6432 start.row -= row_delta;
6433 end.row -= row_delta;
6434 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6435 }
6436 }
6437 }
6438
6439 // If we didn't move line(s), preserve the existing selections
6440 new_selections.append(&mut contiguous_row_selections);
6441 }
6442
6443 self.transact(cx, |this, cx| {
6444 this.unfold_ranges(&unfold_ranges, true, true, cx);
6445 this.buffer.update(cx, |buffer, cx| {
6446 for (range, text) in edits {
6447 buffer.edit([(range, text)], None, cx);
6448 }
6449 });
6450 this.fold_creases(refold_creases, true, cx);
6451 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6452 s.select(new_selections);
6453 })
6454 });
6455 }
6456
6457 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6458 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6459 let buffer = self.buffer.read(cx).snapshot(cx);
6460
6461 let mut edits = Vec::new();
6462 let mut unfold_ranges = Vec::new();
6463 let mut refold_creases = Vec::new();
6464
6465 let selections = self.selections.all::<Point>(cx);
6466 let mut selections = selections.iter().peekable();
6467 let mut contiguous_row_selections = Vec::new();
6468 let mut new_selections = Vec::new();
6469
6470 while let Some(selection) = selections.next() {
6471 // Find all the selections that span a contiguous row range
6472 let (start_row, end_row) = consume_contiguous_rows(
6473 &mut contiguous_row_selections,
6474 selection,
6475 &display_map,
6476 &mut selections,
6477 );
6478
6479 // Move the text spanned by the row range to be after the last line of the row range
6480 if end_row.0 <= buffer.max_point().row {
6481 let range_to_move =
6482 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6483 let insertion_point = display_map
6484 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6485 .0;
6486
6487 // Don't move lines across excerpt boundaries
6488 if buffer
6489 .excerpt_boundaries_in_range((
6490 Bound::Excluded(range_to_move.start),
6491 Bound::Included(insertion_point),
6492 ))
6493 .next()
6494 .is_none()
6495 {
6496 let mut text = String::from("\n");
6497 text.extend(buffer.text_for_range(range_to_move.clone()));
6498 text.pop(); // Drop trailing newline
6499 edits.push((
6500 buffer.anchor_after(range_to_move.start)
6501 ..buffer.anchor_before(range_to_move.end),
6502 String::new(),
6503 ));
6504 let insertion_anchor = buffer.anchor_after(insertion_point);
6505 edits.push((insertion_anchor..insertion_anchor, text));
6506
6507 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6508
6509 // Move selections down
6510 new_selections.extend(contiguous_row_selections.drain(..).map(
6511 |mut selection| {
6512 selection.start.row += row_delta;
6513 selection.end.row += row_delta;
6514 selection
6515 },
6516 ));
6517
6518 // Move folds down
6519 unfold_ranges.push(range_to_move.clone());
6520 for fold in display_map.folds_in_range(
6521 buffer.anchor_before(range_to_move.start)
6522 ..buffer.anchor_after(range_to_move.end),
6523 ) {
6524 let mut start = fold.range.start.to_point(&buffer);
6525 let mut end = fold.range.end.to_point(&buffer);
6526 start.row += row_delta;
6527 end.row += row_delta;
6528 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6529 }
6530 }
6531 }
6532
6533 // If we didn't move line(s), preserve the existing selections
6534 new_selections.append(&mut contiguous_row_selections);
6535 }
6536
6537 self.transact(cx, |this, cx| {
6538 this.unfold_ranges(&unfold_ranges, true, true, cx);
6539 this.buffer.update(cx, |buffer, cx| {
6540 for (range, text) in edits {
6541 buffer.edit([(range, text)], None, cx);
6542 }
6543 });
6544 this.fold_creases(refold_creases, true, cx);
6545 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6546 });
6547 }
6548
6549 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6550 let text_layout_details = &self.text_layout_details(cx);
6551 self.transact(cx, |this, cx| {
6552 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6553 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6554 let line_mode = s.line_mode;
6555 s.move_with(|display_map, selection| {
6556 if !selection.is_empty() || line_mode {
6557 return;
6558 }
6559
6560 let mut head = selection.head();
6561 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6562 if head.column() == display_map.line_len(head.row()) {
6563 transpose_offset = display_map
6564 .buffer_snapshot
6565 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6566 }
6567
6568 if transpose_offset == 0 {
6569 return;
6570 }
6571
6572 *head.column_mut() += 1;
6573 head = display_map.clip_point(head, Bias::Right);
6574 let goal = SelectionGoal::HorizontalPosition(
6575 display_map
6576 .x_for_display_point(head, text_layout_details)
6577 .into(),
6578 );
6579 selection.collapse_to(head, goal);
6580
6581 let transpose_start = display_map
6582 .buffer_snapshot
6583 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6584 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6585 let transpose_end = display_map
6586 .buffer_snapshot
6587 .clip_offset(transpose_offset + 1, Bias::Right);
6588 if let Some(ch) =
6589 display_map.buffer_snapshot.chars_at(transpose_start).next()
6590 {
6591 edits.push((transpose_start..transpose_offset, String::new()));
6592 edits.push((transpose_end..transpose_end, ch.to_string()));
6593 }
6594 }
6595 });
6596 edits
6597 });
6598 this.buffer
6599 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6600 let selections = this.selections.all::<usize>(cx);
6601 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6602 s.select(selections);
6603 });
6604 });
6605 }
6606
6607 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6608 self.rewrap_impl(IsVimMode::No, cx)
6609 }
6610
6611 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6612 let buffer = self.buffer.read(cx).snapshot(cx);
6613 let selections = self.selections.all::<Point>(cx);
6614 let mut selections = selections.iter().peekable();
6615
6616 let mut edits = Vec::new();
6617 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6618
6619 while let Some(selection) = selections.next() {
6620 let mut start_row = selection.start.row;
6621 let mut end_row = selection.end.row;
6622
6623 // Skip selections that overlap with a range that has already been rewrapped.
6624 let selection_range = start_row..end_row;
6625 if rewrapped_row_ranges
6626 .iter()
6627 .any(|range| range.overlaps(&selection_range))
6628 {
6629 continue;
6630 }
6631
6632 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6633
6634 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6635 match language_scope.language_name().0.as_ref() {
6636 "Markdown" | "Plain Text" => {
6637 should_rewrap = true;
6638 }
6639 _ => {}
6640 }
6641 }
6642
6643 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6644
6645 // Since not all lines in the selection may be at the same indent
6646 // level, choose the indent size that is the most common between all
6647 // of the lines.
6648 //
6649 // If there is a tie, we use the deepest indent.
6650 let (indent_size, indent_end) = {
6651 let mut indent_size_occurrences = HashMap::default();
6652 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6653
6654 for row in start_row..=end_row {
6655 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6656 rows_by_indent_size.entry(indent).or_default().push(row);
6657 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6658 }
6659
6660 let indent_size = indent_size_occurrences
6661 .into_iter()
6662 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6663 .map(|(indent, _)| indent)
6664 .unwrap_or_default();
6665 let row = rows_by_indent_size[&indent_size][0];
6666 let indent_end = Point::new(row, indent_size.len);
6667
6668 (indent_size, indent_end)
6669 };
6670
6671 let mut line_prefix = indent_size.chars().collect::<String>();
6672
6673 if let Some(comment_prefix) =
6674 buffer
6675 .language_scope_at(selection.head())
6676 .and_then(|language| {
6677 language
6678 .line_comment_prefixes()
6679 .iter()
6680 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6681 .cloned()
6682 })
6683 {
6684 line_prefix.push_str(&comment_prefix);
6685 should_rewrap = true;
6686 }
6687
6688 if !should_rewrap {
6689 continue;
6690 }
6691
6692 if selection.is_empty() {
6693 'expand_upwards: while start_row > 0 {
6694 let prev_row = start_row - 1;
6695 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6696 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6697 {
6698 start_row = prev_row;
6699 } else {
6700 break 'expand_upwards;
6701 }
6702 }
6703
6704 'expand_downwards: while end_row < buffer.max_point().row {
6705 let next_row = end_row + 1;
6706 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6707 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6708 {
6709 end_row = next_row;
6710 } else {
6711 break 'expand_downwards;
6712 }
6713 }
6714 }
6715
6716 let start = Point::new(start_row, 0);
6717 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6718 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6719 let Some(lines_without_prefixes) = selection_text
6720 .lines()
6721 .map(|line| {
6722 line.strip_prefix(&line_prefix)
6723 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6724 .ok_or_else(|| {
6725 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6726 })
6727 })
6728 .collect::<Result<Vec<_>, _>>()
6729 .log_err()
6730 else {
6731 continue;
6732 };
6733
6734 let wrap_column = buffer
6735 .settings_at(Point::new(start_row, 0), cx)
6736 .preferred_line_length as usize;
6737 let wrapped_text = wrap_with_prefix(
6738 line_prefix,
6739 lines_without_prefixes.join(" "),
6740 wrap_column,
6741 tab_size,
6742 );
6743
6744 // TODO: should always use char-based diff while still supporting cursor behavior that
6745 // matches vim.
6746 let diff = match is_vim_mode {
6747 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6748 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6749 };
6750 let mut offset = start.to_offset(&buffer);
6751 let mut moved_since_edit = true;
6752
6753 for change in diff.iter_all_changes() {
6754 let value = change.value();
6755 match change.tag() {
6756 ChangeTag::Equal => {
6757 offset += value.len();
6758 moved_since_edit = true;
6759 }
6760 ChangeTag::Delete => {
6761 let start = buffer.anchor_after(offset);
6762 let end = buffer.anchor_before(offset + value.len());
6763
6764 if moved_since_edit {
6765 edits.push((start..end, String::new()));
6766 } else {
6767 edits.last_mut().unwrap().0.end = end;
6768 }
6769
6770 offset += value.len();
6771 moved_since_edit = false;
6772 }
6773 ChangeTag::Insert => {
6774 if moved_since_edit {
6775 let anchor = buffer.anchor_after(offset);
6776 edits.push((anchor..anchor, value.to_string()));
6777 } else {
6778 edits.last_mut().unwrap().1.push_str(value);
6779 }
6780
6781 moved_since_edit = false;
6782 }
6783 }
6784 }
6785
6786 rewrapped_row_ranges.push(start_row..=end_row);
6787 }
6788
6789 self.buffer
6790 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6791 }
6792
6793 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6794 let mut text = String::new();
6795 let buffer = self.buffer.read(cx).snapshot(cx);
6796 let mut selections = self.selections.all::<Point>(cx);
6797 let mut clipboard_selections = Vec::with_capacity(selections.len());
6798 {
6799 let max_point = buffer.max_point();
6800 let mut is_first = true;
6801 for selection in &mut selections {
6802 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6803 if is_entire_line {
6804 selection.start = Point::new(selection.start.row, 0);
6805 if !selection.is_empty() && selection.end.column == 0 {
6806 selection.end = cmp::min(max_point, selection.end);
6807 } else {
6808 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6809 }
6810 selection.goal = SelectionGoal::None;
6811 }
6812 if is_first {
6813 is_first = false;
6814 } else {
6815 text += "\n";
6816 }
6817 let mut len = 0;
6818 for chunk in buffer.text_for_range(selection.start..selection.end) {
6819 text.push_str(chunk);
6820 len += chunk.len();
6821 }
6822 clipboard_selections.push(ClipboardSelection {
6823 len,
6824 is_entire_line,
6825 first_line_indent: buffer
6826 .indent_size_for_line(MultiBufferRow(selection.start.row))
6827 .len,
6828 });
6829 }
6830 }
6831
6832 self.transact(cx, |this, cx| {
6833 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6834 s.select(selections);
6835 });
6836 this.insert("", cx);
6837 });
6838 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6839 }
6840
6841 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6842 let item = self.cut_common(cx);
6843 cx.write_to_clipboard(item);
6844 }
6845
6846 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6847 self.change_selections(None, cx, |s| {
6848 s.move_with(|snapshot, sel| {
6849 if sel.is_empty() {
6850 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6851 }
6852 });
6853 });
6854 let item = self.cut_common(cx);
6855 cx.set_global(KillRing(item))
6856 }
6857
6858 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
6859 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
6860 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
6861 (kill_ring.text().to_string(), kill_ring.metadata_json())
6862 } else {
6863 return;
6864 }
6865 } else {
6866 return;
6867 };
6868 self.do_paste(&text, metadata, false, cx);
6869 }
6870
6871 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
6872 let selections = self.selections.all::<Point>(cx);
6873 let buffer = self.buffer.read(cx).read(cx);
6874 let mut text = String::new();
6875
6876 let mut clipboard_selections = Vec::with_capacity(selections.len());
6877 {
6878 let max_point = buffer.max_point();
6879 let mut is_first = true;
6880 for selection in selections.iter() {
6881 let mut start = selection.start;
6882 let mut end = selection.end;
6883 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6884 if is_entire_line {
6885 start = Point::new(start.row, 0);
6886 end = cmp::min(max_point, Point::new(end.row + 1, 0));
6887 }
6888 if is_first {
6889 is_first = false;
6890 } else {
6891 text += "\n";
6892 }
6893 let mut len = 0;
6894 for chunk in buffer.text_for_range(start..end) {
6895 text.push_str(chunk);
6896 len += chunk.len();
6897 }
6898 clipboard_selections.push(ClipboardSelection {
6899 len,
6900 is_entire_line,
6901 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
6902 });
6903 }
6904 }
6905
6906 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
6907 text,
6908 clipboard_selections,
6909 ));
6910 }
6911
6912 pub fn do_paste(
6913 &mut self,
6914 text: &String,
6915 clipboard_selections: Option<Vec<ClipboardSelection>>,
6916 handle_entire_lines: bool,
6917 cx: &mut ViewContext<Self>,
6918 ) {
6919 if self.read_only(cx) {
6920 return;
6921 }
6922
6923 let clipboard_text = Cow::Borrowed(text);
6924
6925 self.transact(cx, |this, cx| {
6926 if let Some(mut clipboard_selections) = clipboard_selections {
6927 let old_selections = this.selections.all::<usize>(cx);
6928 let all_selections_were_entire_line =
6929 clipboard_selections.iter().all(|s| s.is_entire_line);
6930 let first_selection_indent_column =
6931 clipboard_selections.first().map(|s| s.first_line_indent);
6932 if clipboard_selections.len() != old_selections.len() {
6933 clipboard_selections.drain(..);
6934 }
6935 let cursor_offset = this.selections.last::<usize>(cx).head();
6936 let mut auto_indent_on_paste = true;
6937
6938 this.buffer.update(cx, |buffer, cx| {
6939 let snapshot = buffer.read(cx);
6940 auto_indent_on_paste =
6941 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
6942
6943 let mut start_offset = 0;
6944 let mut edits = Vec::new();
6945 let mut original_indent_columns = Vec::new();
6946 for (ix, selection) in old_selections.iter().enumerate() {
6947 let to_insert;
6948 let entire_line;
6949 let original_indent_column;
6950 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
6951 let end_offset = start_offset + clipboard_selection.len;
6952 to_insert = &clipboard_text[start_offset..end_offset];
6953 entire_line = clipboard_selection.is_entire_line;
6954 start_offset = end_offset + 1;
6955 original_indent_column = Some(clipboard_selection.first_line_indent);
6956 } else {
6957 to_insert = clipboard_text.as_str();
6958 entire_line = all_selections_were_entire_line;
6959 original_indent_column = first_selection_indent_column
6960 }
6961
6962 // If the corresponding selection was empty when this slice of the
6963 // clipboard text was written, then the entire line containing the
6964 // selection was copied. If this selection is also currently empty,
6965 // then paste the line before the current line of the buffer.
6966 let range = if selection.is_empty() && handle_entire_lines && entire_line {
6967 let column = selection.start.to_point(&snapshot).column as usize;
6968 let line_start = selection.start - column;
6969 line_start..line_start
6970 } else {
6971 selection.range()
6972 };
6973
6974 edits.push((range, to_insert));
6975 original_indent_columns.extend(original_indent_column);
6976 }
6977 drop(snapshot);
6978
6979 buffer.edit(
6980 edits,
6981 if auto_indent_on_paste {
6982 Some(AutoindentMode::Block {
6983 original_indent_columns,
6984 })
6985 } else {
6986 None
6987 },
6988 cx,
6989 );
6990 });
6991
6992 let selections = this.selections.all::<usize>(cx);
6993 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
6994 } else {
6995 this.insert(&clipboard_text, cx);
6996 }
6997 });
6998 }
6999
7000 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7001 if let Some(item) = cx.read_from_clipboard() {
7002 let entries = item.entries();
7003
7004 match entries.first() {
7005 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7006 // of all the pasted entries.
7007 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7008 .do_paste(
7009 clipboard_string.text(),
7010 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7011 true,
7012 cx,
7013 ),
7014 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7015 }
7016 }
7017 }
7018
7019 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7020 if self.read_only(cx) {
7021 return;
7022 }
7023
7024 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7025 if let Some((selections, _)) =
7026 self.selection_history.transaction(transaction_id).cloned()
7027 {
7028 self.change_selections(None, cx, |s| {
7029 s.select_anchors(selections.to_vec());
7030 });
7031 }
7032 self.request_autoscroll(Autoscroll::fit(), cx);
7033 self.unmark_text(cx);
7034 self.refresh_inline_completion(true, false, cx);
7035 cx.emit(EditorEvent::Edited { transaction_id });
7036 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7037 }
7038 }
7039
7040 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7041 if self.read_only(cx) {
7042 return;
7043 }
7044
7045 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7046 if let Some((_, Some(selections))) =
7047 self.selection_history.transaction(transaction_id).cloned()
7048 {
7049 self.change_selections(None, cx, |s| {
7050 s.select_anchors(selections.to_vec());
7051 });
7052 }
7053 self.request_autoscroll(Autoscroll::fit(), cx);
7054 self.unmark_text(cx);
7055 self.refresh_inline_completion(true, false, cx);
7056 cx.emit(EditorEvent::Edited { transaction_id });
7057 }
7058 }
7059
7060 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7061 self.buffer
7062 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7063 }
7064
7065 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7066 self.buffer
7067 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7068 }
7069
7070 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7071 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7072 let line_mode = s.line_mode;
7073 s.move_with(|map, selection| {
7074 let cursor = if selection.is_empty() && !line_mode {
7075 movement::left(map, selection.start)
7076 } else {
7077 selection.start
7078 };
7079 selection.collapse_to(cursor, SelectionGoal::None);
7080 });
7081 })
7082 }
7083
7084 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7085 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7086 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7087 })
7088 }
7089
7090 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7091 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7092 let line_mode = s.line_mode;
7093 s.move_with(|map, selection| {
7094 let cursor = if selection.is_empty() && !line_mode {
7095 movement::right(map, selection.end)
7096 } else {
7097 selection.end
7098 };
7099 selection.collapse_to(cursor, SelectionGoal::None)
7100 });
7101 })
7102 }
7103
7104 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7105 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7106 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7107 })
7108 }
7109
7110 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7111 if self.take_rename(true, cx).is_some() {
7112 return;
7113 }
7114
7115 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7116 cx.propagate();
7117 return;
7118 }
7119
7120 let text_layout_details = &self.text_layout_details(cx);
7121 let selection_count = self.selections.count();
7122 let first_selection = self.selections.first_anchor();
7123
7124 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7125 let line_mode = s.line_mode;
7126 s.move_with(|map, selection| {
7127 if !selection.is_empty() && !line_mode {
7128 selection.goal = SelectionGoal::None;
7129 }
7130 let (cursor, goal) = movement::up(
7131 map,
7132 selection.start,
7133 selection.goal,
7134 false,
7135 text_layout_details,
7136 );
7137 selection.collapse_to(cursor, goal);
7138 });
7139 });
7140
7141 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7142 {
7143 cx.propagate();
7144 }
7145 }
7146
7147 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7148 if self.take_rename(true, cx).is_some() {
7149 return;
7150 }
7151
7152 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7153 cx.propagate();
7154 return;
7155 }
7156
7157 let text_layout_details = &self.text_layout_details(cx);
7158
7159 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7160 let line_mode = s.line_mode;
7161 s.move_with(|map, selection| {
7162 if !selection.is_empty() && !line_mode {
7163 selection.goal = SelectionGoal::None;
7164 }
7165 let (cursor, goal) = movement::up_by_rows(
7166 map,
7167 selection.start,
7168 action.lines,
7169 selection.goal,
7170 false,
7171 text_layout_details,
7172 );
7173 selection.collapse_to(cursor, goal);
7174 });
7175 })
7176 }
7177
7178 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7179 if self.take_rename(true, cx).is_some() {
7180 return;
7181 }
7182
7183 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7184 cx.propagate();
7185 return;
7186 }
7187
7188 let text_layout_details = &self.text_layout_details(cx);
7189
7190 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7191 let line_mode = s.line_mode;
7192 s.move_with(|map, selection| {
7193 if !selection.is_empty() && !line_mode {
7194 selection.goal = SelectionGoal::None;
7195 }
7196 let (cursor, goal) = movement::down_by_rows(
7197 map,
7198 selection.start,
7199 action.lines,
7200 selection.goal,
7201 false,
7202 text_layout_details,
7203 );
7204 selection.collapse_to(cursor, goal);
7205 });
7206 })
7207 }
7208
7209 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7210 let text_layout_details = &self.text_layout_details(cx);
7211 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7212 s.move_heads_with(|map, head, goal| {
7213 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7214 })
7215 })
7216 }
7217
7218 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7219 let text_layout_details = &self.text_layout_details(cx);
7220 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7221 s.move_heads_with(|map, head, goal| {
7222 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7223 })
7224 })
7225 }
7226
7227 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7228 let Some(row_count) = self.visible_row_count() else {
7229 return;
7230 };
7231
7232 let text_layout_details = &self.text_layout_details(cx);
7233
7234 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7235 s.move_heads_with(|map, head, goal| {
7236 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7237 })
7238 })
7239 }
7240
7241 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7242 if self.take_rename(true, cx).is_some() {
7243 return;
7244 }
7245
7246 if self
7247 .context_menu
7248 .borrow_mut()
7249 .as_mut()
7250 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7251 .unwrap_or(false)
7252 {
7253 return;
7254 }
7255
7256 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7257 cx.propagate();
7258 return;
7259 }
7260
7261 let Some(row_count) = self.visible_row_count() else {
7262 return;
7263 };
7264
7265 let autoscroll = if action.center_cursor {
7266 Autoscroll::center()
7267 } else {
7268 Autoscroll::fit()
7269 };
7270
7271 let text_layout_details = &self.text_layout_details(cx);
7272
7273 self.change_selections(Some(autoscroll), cx, |s| {
7274 let line_mode = s.line_mode;
7275 s.move_with(|map, selection| {
7276 if !selection.is_empty() && !line_mode {
7277 selection.goal = SelectionGoal::None;
7278 }
7279 let (cursor, goal) = movement::up_by_rows(
7280 map,
7281 selection.end,
7282 row_count,
7283 selection.goal,
7284 false,
7285 text_layout_details,
7286 );
7287 selection.collapse_to(cursor, goal);
7288 });
7289 });
7290 }
7291
7292 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7293 let text_layout_details = &self.text_layout_details(cx);
7294 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7295 s.move_heads_with(|map, head, goal| {
7296 movement::up(map, head, goal, false, text_layout_details)
7297 })
7298 })
7299 }
7300
7301 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7302 self.take_rename(true, cx);
7303
7304 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7305 cx.propagate();
7306 return;
7307 }
7308
7309 let text_layout_details = &self.text_layout_details(cx);
7310 let selection_count = self.selections.count();
7311 let first_selection = self.selections.first_anchor();
7312
7313 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7314 let line_mode = s.line_mode;
7315 s.move_with(|map, selection| {
7316 if !selection.is_empty() && !line_mode {
7317 selection.goal = SelectionGoal::None;
7318 }
7319 let (cursor, goal) = movement::down(
7320 map,
7321 selection.end,
7322 selection.goal,
7323 false,
7324 text_layout_details,
7325 );
7326 selection.collapse_to(cursor, goal);
7327 });
7328 });
7329
7330 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7331 {
7332 cx.propagate();
7333 }
7334 }
7335
7336 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7337 let Some(row_count) = self.visible_row_count() else {
7338 return;
7339 };
7340
7341 let text_layout_details = &self.text_layout_details(cx);
7342
7343 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7344 s.move_heads_with(|map, head, goal| {
7345 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7346 })
7347 })
7348 }
7349
7350 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7351 if self.take_rename(true, cx).is_some() {
7352 return;
7353 }
7354
7355 if self
7356 .context_menu
7357 .borrow_mut()
7358 .as_mut()
7359 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7360 .unwrap_or(false)
7361 {
7362 return;
7363 }
7364
7365 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7366 cx.propagate();
7367 return;
7368 }
7369
7370 let Some(row_count) = self.visible_row_count() else {
7371 return;
7372 };
7373
7374 let autoscroll = if action.center_cursor {
7375 Autoscroll::center()
7376 } else {
7377 Autoscroll::fit()
7378 };
7379
7380 let text_layout_details = &self.text_layout_details(cx);
7381 self.change_selections(Some(autoscroll), cx, |s| {
7382 let line_mode = s.line_mode;
7383 s.move_with(|map, selection| {
7384 if !selection.is_empty() && !line_mode {
7385 selection.goal = SelectionGoal::None;
7386 }
7387 let (cursor, goal) = movement::down_by_rows(
7388 map,
7389 selection.end,
7390 row_count,
7391 selection.goal,
7392 false,
7393 text_layout_details,
7394 );
7395 selection.collapse_to(cursor, goal);
7396 });
7397 });
7398 }
7399
7400 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7401 let text_layout_details = &self.text_layout_details(cx);
7402 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7403 s.move_heads_with(|map, head, goal| {
7404 movement::down(map, head, goal, false, text_layout_details)
7405 })
7406 });
7407 }
7408
7409 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7410 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7411 context_menu.select_first(self.completion_provider.as_deref(), cx);
7412 }
7413 }
7414
7415 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7416 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7417 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7418 }
7419 }
7420
7421 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7422 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7423 context_menu.select_next(self.completion_provider.as_deref(), cx);
7424 }
7425 }
7426
7427 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7428 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7429 context_menu.select_last(self.completion_provider.as_deref(), cx);
7430 }
7431 }
7432
7433 pub fn move_to_previous_word_start(
7434 &mut self,
7435 _: &MoveToPreviousWordStart,
7436 cx: &mut ViewContext<Self>,
7437 ) {
7438 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7439 s.move_cursors_with(|map, head, _| {
7440 (
7441 movement::previous_word_start(map, head),
7442 SelectionGoal::None,
7443 )
7444 });
7445 })
7446 }
7447
7448 pub fn move_to_previous_subword_start(
7449 &mut self,
7450 _: &MoveToPreviousSubwordStart,
7451 cx: &mut ViewContext<Self>,
7452 ) {
7453 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7454 s.move_cursors_with(|map, head, _| {
7455 (
7456 movement::previous_subword_start(map, head),
7457 SelectionGoal::None,
7458 )
7459 });
7460 })
7461 }
7462
7463 pub fn select_to_previous_word_start(
7464 &mut self,
7465 _: &SelectToPreviousWordStart,
7466 cx: &mut ViewContext<Self>,
7467 ) {
7468 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7469 s.move_heads_with(|map, head, _| {
7470 (
7471 movement::previous_word_start(map, head),
7472 SelectionGoal::None,
7473 )
7474 });
7475 })
7476 }
7477
7478 pub fn select_to_previous_subword_start(
7479 &mut self,
7480 _: &SelectToPreviousSubwordStart,
7481 cx: &mut ViewContext<Self>,
7482 ) {
7483 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7484 s.move_heads_with(|map, head, _| {
7485 (
7486 movement::previous_subword_start(map, head),
7487 SelectionGoal::None,
7488 )
7489 });
7490 })
7491 }
7492
7493 pub fn delete_to_previous_word_start(
7494 &mut self,
7495 action: &DeleteToPreviousWordStart,
7496 cx: &mut ViewContext<Self>,
7497 ) {
7498 self.transact(cx, |this, cx| {
7499 this.select_autoclose_pair(cx);
7500 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7501 let line_mode = s.line_mode;
7502 s.move_with(|map, selection| {
7503 if selection.is_empty() && !line_mode {
7504 let cursor = if action.ignore_newlines {
7505 movement::previous_word_start(map, selection.head())
7506 } else {
7507 movement::previous_word_start_or_newline(map, selection.head())
7508 };
7509 selection.set_head(cursor, SelectionGoal::None);
7510 }
7511 });
7512 });
7513 this.insert("", cx);
7514 });
7515 }
7516
7517 pub fn delete_to_previous_subword_start(
7518 &mut self,
7519 _: &DeleteToPreviousSubwordStart,
7520 cx: &mut ViewContext<Self>,
7521 ) {
7522 self.transact(cx, |this, cx| {
7523 this.select_autoclose_pair(cx);
7524 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7525 let line_mode = s.line_mode;
7526 s.move_with(|map, selection| {
7527 if selection.is_empty() && !line_mode {
7528 let cursor = movement::previous_subword_start(map, selection.head());
7529 selection.set_head(cursor, SelectionGoal::None);
7530 }
7531 });
7532 });
7533 this.insert("", cx);
7534 });
7535 }
7536
7537 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7538 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7539 s.move_cursors_with(|map, head, _| {
7540 (movement::next_word_end(map, head), SelectionGoal::None)
7541 });
7542 })
7543 }
7544
7545 pub fn move_to_next_subword_end(
7546 &mut self,
7547 _: &MoveToNextSubwordEnd,
7548 cx: &mut ViewContext<Self>,
7549 ) {
7550 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7551 s.move_cursors_with(|map, head, _| {
7552 (movement::next_subword_end(map, head), SelectionGoal::None)
7553 });
7554 })
7555 }
7556
7557 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7558 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7559 s.move_heads_with(|map, head, _| {
7560 (movement::next_word_end(map, head), SelectionGoal::None)
7561 });
7562 })
7563 }
7564
7565 pub fn select_to_next_subword_end(
7566 &mut self,
7567 _: &SelectToNextSubwordEnd,
7568 cx: &mut ViewContext<Self>,
7569 ) {
7570 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7571 s.move_heads_with(|map, head, _| {
7572 (movement::next_subword_end(map, head), SelectionGoal::None)
7573 });
7574 })
7575 }
7576
7577 pub fn delete_to_next_word_end(
7578 &mut self,
7579 action: &DeleteToNextWordEnd,
7580 cx: &mut ViewContext<Self>,
7581 ) {
7582 self.transact(cx, |this, cx| {
7583 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7584 let line_mode = s.line_mode;
7585 s.move_with(|map, selection| {
7586 if selection.is_empty() && !line_mode {
7587 let cursor = if action.ignore_newlines {
7588 movement::next_word_end(map, selection.head())
7589 } else {
7590 movement::next_word_end_or_newline(map, selection.head())
7591 };
7592 selection.set_head(cursor, SelectionGoal::None);
7593 }
7594 });
7595 });
7596 this.insert("", cx);
7597 });
7598 }
7599
7600 pub fn delete_to_next_subword_end(
7601 &mut self,
7602 _: &DeleteToNextSubwordEnd,
7603 cx: &mut ViewContext<Self>,
7604 ) {
7605 self.transact(cx, |this, cx| {
7606 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7607 s.move_with(|map, selection| {
7608 if selection.is_empty() {
7609 let cursor = movement::next_subword_end(map, selection.head());
7610 selection.set_head(cursor, SelectionGoal::None);
7611 }
7612 });
7613 });
7614 this.insert("", cx);
7615 });
7616 }
7617
7618 pub fn move_to_beginning_of_line(
7619 &mut self,
7620 action: &MoveToBeginningOfLine,
7621 cx: &mut ViewContext<Self>,
7622 ) {
7623 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7624 s.move_cursors_with(|map, head, _| {
7625 (
7626 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7627 SelectionGoal::None,
7628 )
7629 });
7630 })
7631 }
7632
7633 pub fn select_to_beginning_of_line(
7634 &mut self,
7635 action: &SelectToBeginningOfLine,
7636 cx: &mut ViewContext<Self>,
7637 ) {
7638 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7639 s.move_heads_with(|map, head, _| {
7640 (
7641 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7642 SelectionGoal::None,
7643 )
7644 });
7645 });
7646 }
7647
7648 pub fn delete_to_beginning_of_line(
7649 &mut self,
7650 _: &DeleteToBeginningOfLine,
7651 cx: &mut ViewContext<Self>,
7652 ) {
7653 self.transact(cx, |this, cx| {
7654 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7655 s.move_with(|_, selection| {
7656 selection.reversed = true;
7657 });
7658 });
7659
7660 this.select_to_beginning_of_line(
7661 &SelectToBeginningOfLine {
7662 stop_at_soft_wraps: false,
7663 },
7664 cx,
7665 );
7666 this.backspace(&Backspace, cx);
7667 });
7668 }
7669
7670 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7671 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7672 s.move_cursors_with(|map, head, _| {
7673 (
7674 movement::line_end(map, head, action.stop_at_soft_wraps),
7675 SelectionGoal::None,
7676 )
7677 });
7678 })
7679 }
7680
7681 pub fn select_to_end_of_line(
7682 &mut self,
7683 action: &SelectToEndOfLine,
7684 cx: &mut ViewContext<Self>,
7685 ) {
7686 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7687 s.move_heads_with(|map, head, _| {
7688 (
7689 movement::line_end(map, head, action.stop_at_soft_wraps),
7690 SelectionGoal::None,
7691 )
7692 });
7693 })
7694 }
7695
7696 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7697 self.transact(cx, |this, cx| {
7698 this.select_to_end_of_line(
7699 &SelectToEndOfLine {
7700 stop_at_soft_wraps: false,
7701 },
7702 cx,
7703 );
7704 this.delete(&Delete, cx);
7705 });
7706 }
7707
7708 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7709 self.transact(cx, |this, cx| {
7710 this.select_to_end_of_line(
7711 &SelectToEndOfLine {
7712 stop_at_soft_wraps: false,
7713 },
7714 cx,
7715 );
7716 this.cut(&Cut, cx);
7717 });
7718 }
7719
7720 pub fn move_to_start_of_paragraph(
7721 &mut self,
7722 _: &MoveToStartOfParagraph,
7723 cx: &mut ViewContext<Self>,
7724 ) {
7725 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7726 cx.propagate();
7727 return;
7728 }
7729
7730 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7731 s.move_with(|map, selection| {
7732 selection.collapse_to(
7733 movement::start_of_paragraph(map, selection.head(), 1),
7734 SelectionGoal::None,
7735 )
7736 });
7737 })
7738 }
7739
7740 pub fn move_to_end_of_paragraph(
7741 &mut self,
7742 _: &MoveToEndOfParagraph,
7743 cx: &mut ViewContext<Self>,
7744 ) {
7745 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7746 cx.propagate();
7747 return;
7748 }
7749
7750 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7751 s.move_with(|map, selection| {
7752 selection.collapse_to(
7753 movement::end_of_paragraph(map, selection.head(), 1),
7754 SelectionGoal::None,
7755 )
7756 });
7757 })
7758 }
7759
7760 pub fn select_to_start_of_paragraph(
7761 &mut self,
7762 _: &SelectToStartOfParagraph,
7763 cx: &mut ViewContext<Self>,
7764 ) {
7765 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7766 cx.propagate();
7767 return;
7768 }
7769
7770 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7771 s.move_heads_with(|map, head, _| {
7772 (
7773 movement::start_of_paragraph(map, head, 1),
7774 SelectionGoal::None,
7775 )
7776 });
7777 })
7778 }
7779
7780 pub fn select_to_end_of_paragraph(
7781 &mut self,
7782 _: &SelectToEndOfParagraph,
7783 cx: &mut ViewContext<Self>,
7784 ) {
7785 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7786 cx.propagate();
7787 return;
7788 }
7789
7790 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7791 s.move_heads_with(|map, head, _| {
7792 (
7793 movement::end_of_paragraph(map, head, 1),
7794 SelectionGoal::None,
7795 )
7796 });
7797 })
7798 }
7799
7800 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7801 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7802 cx.propagate();
7803 return;
7804 }
7805
7806 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7807 s.select_ranges(vec![0..0]);
7808 });
7809 }
7810
7811 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7812 let mut selection = self.selections.last::<Point>(cx);
7813 selection.set_head(Point::zero(), SelectionGoal::None);
7814
7815 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7816 s.select(vec![selection]);
7817 });
7818 }
7819
7820 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7821 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7822 cx.propagate();
7823 return;
7824 }
7825
7826 let cursor = self.buffer.read(cx).read(cx).len();
7827 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7828 s.select_ranges(vec![cursor..cursor])
7829 });
7830 }
7831
7832 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7833 self.nav_history = nav_history;
7834 }
7835
7836 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7837 self.nav_history.as_ref()
7838 }
7839
7840 fn push_to_nav_history(
7841 &mut self,
7842 cursor_anchor: Anchor,
7843 new_position: Option<Point>,
7844 cx: &mut ViewContext<Self>,
7845 ) {
7846 if let Some(nav_history) = self.nav_history.as_mut() {
7847 let buffer = self.buffer.read(cx).read(cx);
7848 let cursor_position = cursor_anchor.to_point(&buffer);
7849 let scroll_state = self.scroll_manager.anchor();
7850 let scroll_top_row = scroll_state.top_row(&buffer);
7851 drop(buffer);
7852
7853 if let Some(new_position) = new_position {
7854 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
7855 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
7856 return;
7857 }
7858 }
7859
7860 nav_history.push(
7861 Some(NavigationData {
7862 cursor_anchor,
7863 cursor_position,
7864 scroll_anchor: scroll_state,
7865 scroll_top_row,
7866 }),
7867 cx,
7868 );
7869 }
7870 }
7871
7872 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
7873 let buffer = self.buffer.read(cx).snapshot(cx);
7874 let mut selection = self.selections.first::<usize>(cx);
7875 selection.set_head(buffer.len(), SelectionGoal::None);
7876 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7877 s.select(vec![selection]);
7878 });
7879 }
7880
7881 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
7882 let end = self.buffer.read(cx).read(cx).len();
7883 self.change_selections(None, cx, |s| {
7884 s.select_ranges(vec![0..end]);
7885 });
7886 }
7887
7888 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
7889 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7890 let mut selections = self.selections.all::<Point>(cx);
7891 let max_point = display_map.buffer_snapshot.max_point();
7892 for selection in &mut selections {
7893 let rows = selection.spanned_rows(true, &display_map);
7894 selection.start = Point::new(rows.start.0, 0);
7895 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
7896 selection.reversed = false;
7897 }
7898 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7899 s.select(selections);
7900 });
7901 }
7902
7903 pub fn split_selection_into_lines(
7904 &mut self,
7905 _: &SplitSelectionIntoLines,
7906 cx: &mut ViewContext<Self>,
7907 ) {
7908 let mut to_unfold = Vec::new();
7909 let mut new_selection_ranges = Vec::new();
7910 {
7911 let selections = self.selections.all::<Point>(cx);
7912 let buffer = self.buffer.read(cx).read(cx);
7913 for selection in selections {
7914 for row in selection.start.row..selection.end.row {
7915 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
7916 new_selection_ranges.push(cursor..cursor);
7917 }
7918 new_selection_ranges.push(selection.end..selection.end);
7919 to_unfold.push(selection.start..selection.end);
7920 }
7921 }
7922 self.unfold_ranges(&to_unfold, true, true, cx);
7923 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7924 s.select_ranges(new_selection_ranges);
7925 });
7926 }
7927
7928 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
7929 self.add_selection(true, cx);
7930 }
7931
7932 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
7933 self.add_selection(false, cx);
7934 }
7935
7936 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
7937 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
7938 let mut selections = self.selections.all::<Point>(cx);
7939 let text_layout_details = self.text_layout_details(cx);
7940 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
7941 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
7942 let range = oldest_selection.display_range(&display_map).sorted();
7943
7944 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
7945 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
7946 let positions = start_x.min(end_x)..start_x.max(end_x);
7947
7948 selections.clear();
7949 let mut stack = Vec::new();
7950 for row in range.start.row().0..=range.end.row().0 {
7951 if let Some(selection) = self.selections.build_columnar_selection(
7952 &display_map,
7953 DisplayRow(row),
7954 &positions,
7955 oldest_selection.reversed,
7956 &text_layout_details,
7957 ) {
7958 stack.push(selection.id);
7959 selections.push(selection);
7960 }
7961 }
7962
7963 if above {
7964 stack.reverse();
7965 }
7966
7967 AddSelectionsState { above, stack }
7968 });
7969
7970 let last_added_selection = *state.stack.last().unwrap();
7971 let mut new_selections = Vec::new();
7972 if above == state.above {
7973 let end_row = if above {
7974 DisplayRow(0)
7975 } else {
7976 display_map.max_point().row()
7977 };
7978
7979 'outer: for selection in selections {
7980 if selection.id == last_added_selection {
7981 let range = selection.display_range(&display_map).sorted();
7982 debug_assert_eq!(range.start.row(), range.end.row());
7983 let mut row = range.start.row();
7984 let positions =
7985 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
7986 px(start)..px(end)
7987 } else {
7988 let start_x =
7989 display_map.x_for_display_point(range.start, &text_layout_details);
7990 let end_x =
7991 display_map.x_for_display_point(range.end, &text_layout_details);
7992 start_x.min(end_x)..start_x.max(end_x)
7993 };
7994
7995 while row != end_row {
7996 if above {
7997 row.0 -= 1;
7998 } else {
7999 row.0 += 1;
8000 }
8001
8002 if let Some(new_selection) = self.selections.build_columnar_selection(
8003 &display_map,
8004 row,
8005 &positions,
8006 selection.reversed,
8007 &text_layout_details,
8008 ) {
8009 state.stack.push(new_selection.id);
8010 if above {
8011 new_selections.push(new_selection);
8012 new_selections.push(selection);
8013 } else {
8014 new_selections.push(selection);
8015 new_selections.push(new_selection);
8016 }
8017
8018 continue 'outer;
8019 }
8020 }
8021 }
8022
8023 new_selections.push(selection);
8024 }
8025 } else {
8026 new_selections = selections;
8027 new_selections.retain(|s| s.id != last_added_selection);
8028 state.stack.pop();
8029 }
8030
8031 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8032 s.select(new_selections);
8033 });
8034 if state.stack.len() > 1 {
8035 self.add_selections_state = Some(state);
8036 }
8037 }
8038
8039 pub fn select_next_match_internal(
8040 &mut self,
8041 display_map: &DisplaySnapshot,
8042 replace_newest: bool,
8043 autoscroll: Option<Autoscroll>,
8044 cx: &mut ViewContext<Self>,
8045 ) -> Result<()> {
8046 fn select_next_match_ranges(
8047 this: &mut Editor,
8048 range: Range<usize>,
8049 replace_newest: bool,
8050 auto_scroll: Option<Autoscroll>,
8051 cx: &mut ViewContext<Editor>,
8052 ) {
8053 this.unfold_ranges(&[range.clone()], false, true, cx);
8054 this.change_selections(auto_scroll, cx, |s| {
8055 if replace_newest {
8056 s.delete(s.newest_anchor().id);
8057 }
8058 s.insert_range(range.clone());
8059 });
8060 }
8061
8062 let buffer = &display_map.buffer_snapshot;
8063 let mut selections = self.selections.all::<usize>(cx);
8064 if let Some(mut select_next_state) = self.select_next_state.take() {
8065 let query = &select_next_state.query;
8066 if !select_next_state.done {
8067 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8068 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8069 let mut next_selected_range = None;
8070
8071 let bytes_after_last_selection =
8072 buffer.bytes_in_range(last_selection.end..buffer.len());
8073 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8074 let query_matches = query
8075 .stream_find_iter(bytes_after_last_selection)
8076 .map(|result| (last_selection.end, result))
8077 .chain(
8078 query
8079 .stream_find_iter(bytes_before_first_selection)
8080 .map(|result| (0, result)),
8081 );
8082
8083 for (start_offset, query_match) in query_matches {
8084 let query_match = query_match.unwrap(); // can only fail due to I/O
8085 let offset_range =
8086 start_offset + query_match.start()..start_offset + query_match.end();
8087 let display_range = offset_range.start.to_display_point(display_map)
8088 ..offset_range.end.to_display_point(display_map);
8089
8090 if !select_next_state.wordwise
8091 || (!movement::is_inside_word(display_map, display_range.start)
8092 && !movement::is_inside_word(display_map, display_range.end))
8093 {
8094 // TODO: This is n^2, because we might check all the selections
8095 if !selections
8096 .iter()
8097 .any(|selection| selection.range().overlaps(&offset_range))
8098 {
8099 next_selected_range = Some(offset_range);
8100 break;
8101 }
8102 }
8103 }
8104
8105 if let Some(next_selected_range) = next_selected_range {
8106 select_next_match_ranges(
8107 self,
8108 next_selected_range,
8109 replace_newest,
8110 autoscroll,
8111 cx,
8112 );
8113 } else {
8114 select_next_state.done = true;
8115 }
8116 }
8117
8118 self.select_next_state = Some(select_next_state);
8119 } else {
8120 let mut only_carets = true;
8121 let mut same_text_selected = true;
8122 let mut selected_text = None;
8123
8124 let mut selections_iter = selections.iter().peekable();
8125 while let Some(selection) = selections_iter.next() {
8126 if selection.start != selection.end {
8127 only_carets = false;
8128 }
8129
8130 if same_text_selected {
8131 if selected_text.is_none() {
8132 selected_text =
8133 Some(buffer.text_for_range(selection.range()).collect::<String>());
8134 }
8135
8136 if let Some(next_selection) = selections_iter.peek() {
8137 if next_selection.range().len() == selection.range().len() {
8138 let next_selected_text = buffer
8139 .text_for_range(next_selection.range())
8140 .collect::<String>();
8141 if Some(next_selected_text) != selected_text {
8142 same_text_selected = false;
8143 selected_text = None;
8144 }
8145 } else {
8146 same_text_selected = false;
8147 selected_text = None;
8148 }
8149 }
8150 }
8151 }
8152
8153 if only_carets {
8154 for selection in &mut selections {
8155 let word_range = movement::surrounding_word(
8156 display_map,
8157 selection.start.to_display_point(display_map),
8158 );
8159 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8160 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8161 selection.goal = SelectionGoal::None;
8162 selection.reversed = false;
8163 select_next_match_ranges(
8164 self,
8165 selection.start..selection.end,
8166 replace_newest,
8167 autoscroll,
8168 cx,
8169 );
8170 }
8171
8172 if selections.len() == 1 {
8173 let selection = selections
8174 .last()
8175 .expect("ensured that there's only one selection");
8176 let query = buffer
8177 .text_for_range(selection.start..selection.end)
8178 .collect::<String>();
8179 let is_empty = query.is_empty();
8180 let select_state = SelectNextState {
8181 query: AhoCorasick::new(&[query])?,
8182 wordwise: true,
8183 done: is_empty,
8184 };
8185 self.select_next_state = Some(select_state);
8186 } else {
8187 self.select_next_state = None;
8188 }
8189 } else if let Some(selected_text) = selected_text {
8190 self.select_next_state = Some(SelectNextState {
8191 query: AhoCorasick::new(&[selected_text])?,
8192 wordwise: false,
8193 done: false,
8194 });
8195 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8196 }
8197 }
8198 Ok(())
8199 }
8200
8201 pub fn select_all_matches(
8202 &mut self,
8203 _action: &SelectAllMatches,
8204 cx: &mut ViewContext<Self>,
8205 ) -> Result<()> {
8206 self.push_to_selection_history();
8207 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8208
8209 self.select_next_match_internal(&display_map, false, None, cx)?;
8210 let Some(select_next_state) = self.select_next_state.as_mut() else {
8211 return Ok(());
8212 };
8213 if select_next_state.done {
8214 return Ok(());
8215 }
8216
8217 let mut new_selections = self.selections.all::<usize>(cx);
8218
8219 let buffer = &display_map.buffer_snapshot;
8220 let query_matches = select_next_state
8221 .query
8222 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8223
8224 for query_match in query_matches {
8225 let query_match = query_match.unwrap(); // can only fail due to I/O
8226 let offset_range = query_match.start()..query_match.end();
8227 let display_range = offset_range.start.to_display_point(&display_map)
8228 ..offset_range.end.to_display_point(&display_map);
8229
8230 if !select_next_state.wordwise
8231 || (!movement::is_inside_word(&display_map, display_range.start)
8232 && !movement::is_inside_word(&display_map, display_range.end))
8233 {
8234 self.selections.change_with(cx, |selections| {
8235 new_selections.push(Selection {
8236 id: selections.new_selection_id(),
8237 start: offset_range.start,
8238 end: offset_range.end,
8239 reversed: false,
8240 goal: SelectionGoal::None,
8241 });
8242 });
8243 }
8244 }
8245
8246 new_selections.sort_by_key(|selection| selection.start);
8247 let mut ix = 0;
8248 while ix + 1 < new_selections.len() {
8249 let current_selection = &new_selections[ix];
8250 let next_selection = &new_selections[ix + 1];
8251 if current_selection.range().overlaps(&next_selection.range()) {
8252 if current_selection.id < next_selection.id {
8253 new_selections.remove(ix + 1);
8254 } else {
8255 new_selections.remove(ix);
8256 }
8257 } else {
8258 ix += 1;
8259 }
8260 }
8261
8262 select_next_state.done = true;
8263 self.unfold_ranges(
8264 &new_selections
8265 .iter()
8266 .map(|selection| selection.range())
8267 .collect::<Vec<_>>(),
8268 false,
8269 false,
8270 cx,
8271 );
8272 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8273 selections.select(new_selections)
8274 });
8275
8276 Ok(())
8277 }
8278
8279 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8280 self.push_to_selection_history();
8281 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8282 self.select_next_match_internal(
8283 &display_map,
8284 action.replace_newest,
8285 Some(Autoscroll::newest()),
8286 cx,
8287 )?;
8288 Ok(())
8289 }
8290
8291 pub fn select_previous(
8292 &mut self,
8293 action: &SelectPrevious,
8294 cx: &mut ViewContext<Self>,
8295 ) -> Result<()> {
8296 self.push_to_selection_history();
8297 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8298 let buffer = &display_map.buffer_snapshot;
8299 let mut selections = self.selections.all::<usize>(cx);
8300 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8301 let query = &select_prev_state.query;
8302 if !select_prev_state.done {
8303 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8304 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8305 let mut next_selected_range = None;
8306 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8307 let bytes_before_last_selection =
8308 buffer.reversed_bytes_in_range(0..last_selection.start);
8309 let bytes_after_first_selection =
8310 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8311 let query_matches = query
8312 .stream_find_iter(bytes_before_last_selection)
8313 .map(|result| (last_selection.start, result))
8314 .chain(
8315 query
8316 .stream_find_iter(bytes_after_first_selection)
8317 .map(|result| (buffer.len(), result)),
8318 );
8319 for (end_offset, query_match) in query_matches {
8320 let query_match = query_match.unwrap(); // can only fail due to I/O
8321 let offset_range =
8322 end_offset - query_match.end()..end_offset - query_match.start();
8323 let display_range = offset_range.start.to_display_point(&display_map)
8324 ..offset_range.end.to_display_point(&display_map);
8325
8326 if !select_prev_state.wordwise
8327 || (!movement::is_inside_word(&display_map, display_range.start)
8328 && !movement::is_inside_word(&display_map, display_range.end))
8329 {
8330 next_selected_range = Some(offset_range);
8331 break;
8332 }
8333 }
8334
8335 if let Some(next_selected_range) = next_selected_range {
8336 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8337 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8338 if action.replace_newest {
8339 s.delete(s.newest_anchor().id);
8340 }
8341 s.insert_range(next_selected_range);
8342 });
8343 } else {
8344 select_prev_state.done = true;
8345 }
8346 }
8347
8348 self.select_prev_state = Some(select_prev_state);
8349 } else {
8350 let mut only_carets = true;
8351 let mut same_text_selected = true;
8352 let mut selected_text = None;
8353
8354 let mut selections_iter = selections.iter().peekable();
8355 while let Some(selection) = selections_iter.next() {
8356 if selection.start != selection.end {
8357 only_carets = false;
8358 }
8359
8360 if same_text_selected {
8361 if selected_text.is_none() {
8362 selected_text =
8363 Some(buffer.text_for_range(selection.range()).collect::<String>());
8364 }
8365
8366 if let Some(next_selection) = selections_iter.peek() {
8367 if next_selection.range().len() == selection.range().len() {
8368 let next_selected_text = buffer
8369 .text_for_range(next_selection.range())
8370 .collect::<String>();
8371 if Some(next_selected_text) != selected_text {
8372 same_text_selected = false;
8373 selected_text = None;
8374 }
8375 } else {
8376 same_text_selected = false;
8377 selected_text = None;
8378 }
8379 }
8380 }
8381 }
8382
8383 if only_carets {
8384 for selection in &mut selections {
8385 let word_range = movement::surrounding_word(
8386 &display_map,
8387 selection.start.to_display_point(&display_map),
8388 );
8389 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8390 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8391 selection.goal = SelectionGoal::None;
8392 selection.reversed = false;
8393 }
8394 if selections.len() == 1 {
8395 let selection = selections
8396 .last()
8397 .expect("ensured that there's only one selection");
8398 let query = buffer
8399 .text_for_range(selection.start..selection.end)
8400 .collect::<String>();
8401 let is_empty = query.is_empty();
8402 let select_state = SelectNextState {
8403 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8404 wordwise: true,
8405 done: is_empty,
8406 };
8407 self.select_prev_state = Some(select_state);
8408 } else {
8409 self.select_prev_state = None;
8410 }
8411
8412 self.unfold_ranges(
8413 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8414 false,
8415 true,
8416 cx,
8417 );
8418 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8419 s.select(selections);
8420 });
8421 } else if let Some(selected_text) = selected_text {
8422 self.select_prev_state = Some(SelectNextState {
8423 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8424 wordwise: false,
8425 done: false,
8426 });
8427 self.select_previous(action, cx)?;
8428 }
8429 }
8430 Ok(())
8431 }
8432
8433 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8434 if self.read_only(cx) {
8435 return;
8436 }
8437 let text_layout_details = &self.text_layout_details(cx);
8438 self.transact(cx, |this, cx| {
8439 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8440 let mut edits = Vec::new();
8441 let mut selection_edit_ranges = Vec::new();
8442 let mut last_toggled_row = None;
8443 let snapshot = this.buffer.read(cx).read(cx);
8444 let empty_str: Arc<str> = Arc::default();
8445 let mut suffixes_inserted = Vec::new();
8446 let ignore_indent = action.ignore_indent;
8447
8448 fn comment_prefix_range(
8449 snapshot: &MultiBufferSnapshot,
8450 row: MultiBufferRow,
8451 comment_prefix: &str,
8452 comment_prefix_whitespace: &str,
8453 ignore_indent: bool,
8454 ) -> Range<Point> {
8455 let indent_size = if ignore_indent {
8456 0
8457 } else {
8458 snapshot.indent_size_for_line(row).len
8459 };
8460
8461 let start = Point::new(row.0, indent_size);
8462
8463 let mut line_bytes = snapshot
8464 .bytes_in_range(start..snapshot.max_point())
8465 .flatten()
8466 .copied();
8467
8468 // If this line currently begins with the line comment prefix, then record
8469 // the range containing the prefix.
8470 if line_bytes
8471 .by_ref()
8472 .take(comment_prefix.len())
8473 .eq(comment_prefix.bytes())
8474 {
8475 // Include any whitespace that matches the comment prefix.
8476 let matching_whitespace_len = line_bytes
8477 .zip(comment_prefix_whitespace.bytes())
8478 .take_while(|(a, b)| a == b)
8479 .count() as u32;
8480 let end = Point::new(
8481 start.row,
8482 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8483 );
8484 start..end
8485 } else {
8486 start..start
8487 }
8488 }
8489
8490 fn comment_suffix_range(
8491 snapshot: &MultiBufferSnapshot,
8492 row: MultiBufferRow,
8493 comment_suffix: &str,
8494 comment_suffix_has_leading_space: bool,
8495 ) -> Range<Point> {
8496 let end = Point::new(row.0, snapshot.line_len(row));
8497 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8498
8499 let mut line_end_bytes = snapshot
8500 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8501 .flatten()
8502 .copied();
8503
8504 let leading_space_len = if suffix_start_column > 0
8505 && line_end_bytes.next() == Some(b' ')
8506 && comment_suffix_has_leading_space
8507 {
8508 1
8509 } else {
8510 0
8511 };
8512
8513 // If this line currently begins with the line comment prefix, then record
8514 // the range containing the prefix.
8515 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8516 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8517 start..end
8518 } else {
8519 end..end
8520 }
8521 }
8522
8523 // TODO: Handle selections that cross excerpts
8524 for selection in &mut selections {
8525 let start_column = snapshot
8526 .indent_size_for_line(MultiBufferRow(selection.start.row))
8527 .len;
8528 let language = if let Some(language) =
8529 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8530 {
8531 language
8532 } else {
8533 continue;
8534 };
8535
8536 selection_edit_ranges.clear();
8537
8538 // If multiple selections contain a given row, avoid processing that
8539 // row more than once.
8540 let mut start_row = MultiBufferRow(selection.start.row);
8541 if last_toggled_row == Some(start_row) {
8542 start_row = start_row.next_row();
8543 }
8544 let end_row =
8545 if selection.end.row > selection.start.row && selection.end.column == 0 {
8546 MultiBufferRow(selection.end.row - 1)
8547 } else {
8548 MultiBufferRow(selection.end.row)
8549 };
8550 last_toggled_row = Some(end_row);
8551
8552 if start_row > end_row {
8553 continue;
8554 }
8555
8556 // If the language has line comments, toggle those.
8557 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8558
8559 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8560 if ignore_indent {
8561 full_comment_prefixes = full_comment_prefixes
8562 .into_iter()
8563 .map(|s| Arc::from(s.trim_end()))
8564 .collect();
8565 }
8566
8567 if !full_comment_prefixes.is_empty() {
8568 let first_prefix = full_comment_prefixes
8569 .first()
8570 .expect("prefixes is non-empty");
8571 let prefix_trimmed_lengths = full_comment_prefixes
8572 .iter()
8573 .map(|p| p.trim_end_matches(' ').len())
8574 .collect::<SmallVec<[usize; 4]>>();
8575
8576 let mut all_selection_lines_are_comments = true;
8577
8578 for row in start_row.0..=end_row.0 {
8579 let row = MultiBufferRow(row);
8580 if start_row < end_row && snapshot.is_line_blank(row) {
8581 continue;
8582 }
8583
8584 let prefix_range = full_comment_prefixes
8585 .iter()
8586 .zip(prefix_trimmed_lengths.iter().copied())
8587 .map(|(prefix, trimmed_prefix_len)| {
8588 comment_prefix_range(
8589 snapshot.deref(),
8590 row,
8591 &prefix[..trimmed_prefix_len],
8592 &prefix[trimmed_prefix_len..],
8593 ignore_indent,
8594 )
8595 })
8596 .max_by_key(|range| range.end.column - range.start.column)
8597 .expect("prefixes is non-empty");
8598
8599 if prefix_range.is_empty() {
8600 all_selection_lines_are_comments = false;
8601 }
8602
8603 selection_edit_ranges.push(prefix_range);
8604 }
8605
8606 if all_selection_lines_are_comments {
8607 edits.extend(
8608 selection_edit_ranges
8609 .iter()
8610 .cloned()
8611 .map(|range| (range, empty_str.clone())),
8612 );
8613 } else {
8614 let min_column = selection_edit_ranges
8615 .iter()
8616 .map(|range| range.start.column)
8617 .min()
8618 .unwrap_or(0);
8619 edits.extend(selection_edit_ranges.iter().map(|range| {
8620 let position = Point::new(range.start.row, min_column);
8621 (position..position, first_prefix.clone())
8622 }));
8623 }
8624 } else if let Some((full_comment_prefix, comment_suffix)) =
8625 language.block_comment_delimiters()
8626 {
8627 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8628 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8629 let prefix_range = comment_prefix_range(
8630 snapshot.deref(),
8631 start_row,
8632 comment_prefix,
8633 comment_prefix_whitespace,
8634 ignore_indent,
8635 );
8636 let suffix_range = comment_suffix_range(
8637 snapshot.deref(),
8638 end_row,
8639 comment_suffix.trim_start_matches(' '),
8640 comment_suffix.starts_with(' '),
8641 );
8642
8643 if prefix_range.is_empty() || suffix_range.is_empty() {
8644 edits.push((
8645 prefix_range.start..prefix_range.start,
8646 full_comment_prefix.clone(),
8647 ));
8648 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8649 suffixes_inserted.push((end_row, comment_suffix.len()));
8650 } else {
8651 edits.push((prefix_range, empty_str.clone()));
8652 edits.push((suffix_range, empty_str.clone()));
8653 }
8654 } else {
8655 continue;
8656 }
8657 }
8658
8659 drop(snapshot);
8660 this.buffer.update(cx, |buffer, cx| {
8661 buffer.edit(edits, None, cx);
8662 });
8663
8664 // Adjust selections so that they end before any comment suffixes that
8665 // were inserted.
8666 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8667 let mut selections = this.selections.all::<Point>(cx);
8668 let snapshot = this.buffer.read(cx).read(cx);
8669 for selection in &mut selections {
8670 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8671 match row.cmp(&MultiBufferRow(selection.end.row)) {
8672 Ordering::Less => {
8673 suffixes_inserted.next();
8674 continue;
8675 }
8676 Ordering::Greater => break,
8677 Ordering::Equal => {
8678 if selection.end.column == snapshot.line_len(row) {
8679 if selection.is_empty() {
8680 selection.start.column -= suffix_len as u32;
8681 }
8682 selection.end.column -= suffix_len as u32;
8683 }
8684 break;
8685 }
8686 }
8687 }
8688 }
8689
8690 drop(snapshot);
8691 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8692
8693 let selections = this.selections.all::<Point>(cx);
8694 let selections_on_single_row = selections.windows(2).all(|selections| {
8695 selections[0].start.row == selections[1].start.row
8696 && selections[0].end.row == selections[1].end.row
8697 && selections[0].start.row == selections[0].end.row
8698 });
8699 let selections_selecting = selections
8700 .iter()
8701 .any(|selection| selection.start != selection.end);
8702 let advance_downwards = action.advance_downwards
8703 && selections_on_single_row
8704 && !selections_selecting
8705 && !matches!(this.mode, EditorMode::SingleLine { .. });
8706
8707 if advance_downwards {
8708 let snapshot = this.buffer.read(cx).snapshot(cx);
8709
8710 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8711 s.move_cursors_with(|display_snapshot, display_point, _| {
8712 let mut point = display_point.to_point(display_snapshot);
8713 point.row += 1;
8714 point = snapshot.clip_point(point, Bias::Left);
8715 let display_point = point.to_display_point(display_snapshot);
8716 let goal = SelectionGoal::HorizontalPosition(
8717 display_snapshot
8718 .x_for_display_point(display_point, text_layout_details)
8719 .into(),
8720 );
8721 (display_point, goal)
8722 })
8723 });
8724 }
8725 });
8726 }
8727
8728 pub fn select_enclosing_symbol(
8729 &mut self,
8730 _: &SelectEnclosingSymbol,
8731 cx: &mut ViewContext<Self>,
8732 ) {
8733 let buffer = self.buffer.read(cx).snapshot(cx);
8734 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8735
8736 fn update_selection(
8737 selection: &Selection<usize>,
8738 buffer_snap: &MultiBufferSnapshot,
8739 ) -> Option<Selection<usize>> {
8740 let cursor = selection.head();
8741 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8742 for symbol in symbols.iter().rev() {
8743 let start = symbol.range.start.to_offset(buffer_snap);
8744 let end = symbol.range.end.to_offset(buffer_snap);
8745 let new_range = start..end;
8746 if start < selection.start || end > selection.end {
8747 return Some(Selection {
8748 id: selection.id,
8749 start: new_range.start,
8750 end: new_range.end,
8751 goal: SelectionGoal::None,
8752 reversed: selection.reversed,
8753 });
8754 }
8755 }
8756 None
8757 }
8758
8759 let mut selected_larger_symbol = false;
8760 let new_selections = old_selections
8761 .iter()
8762 .map(|selection| match update_selection(selection, &buffer) {
8763 Some(new_selection) => {
8764 if new_selection.range() != selection.range() {
8765 selected_larger_symbol = true;
8766 }
8767 new_selection
8768 }
8769 None => selection.clone(),
8770 })
8771 .collect::<Vec<_>>();
8772
8773 if selected_larger_symbol {
8774 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8775 s.select(new_selections);
8776 });
8777 }
8778 }
8779
8780 pub fn select_larger_syntax_node(
8781 &mut self,
8782 _: &SelectLargerSyntaxNode,
8783 cx: &mut ViewContext<Self>,
8784 ) {
8785 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8786 let buffer = self.buffer.read(cx).snapshot(cx);
8787 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8788
8789 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8790 let mut selected_larger_node = false;
8791 let new_selections = old_selections
8792 .iter()
8793 .map(|selection| {
8794 let old_range = selection.start..selection.end;
8795 let mut new_range = old_range.clone();
8796 let mut new_node = None;
8797 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8798 {
8799 new_node = Some(node);
8800 new_range = containing_range;
8801 if !display_map.intersects_fold(new_range.start)
8802 && !display_map.intersects_fold(new_range.end)
8803 {
8804 break;
8805 }
8806 }
8807
8808 if let Some(node) = new_node {
8809 // Log the ancestor, to support using this action as a way to explore TreeSitter
8810 // nodes. Parent and grandparent are also logged because this operation will not
8811 // visit nodes that have the same range as their parent.
8812 log::info!("Node: {node:?}");
8813 let parent = node.parent();
8814 log::info!("Parent: {parent:?}");
8815 let grandparent = parent.and_then(|x| x.parent());
8816 log::info!("Grandparent: {grandparent:?}");
8817 }
8818
8819 selected_larger_node |= new_range != old_range;
8820 Selection {
8821 id: selection.id,
8822 start: new_range.start,
8823 end: new_range.end,
8824 goal: SelectionGoal::None,
8825 reversed: selection.reversed,
8826 }
8827 })
8828 .collect::<Vec<_>>();
8829
8830 if selected_larger_node {
8831 stack.push(old_selections);
8832 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8833 s.select(new_selections);
8834 });
8835 }
8836 self.select_larger_syntax_node_stack = stack;
8837 }
8838
8839 pub fn select_smaller_syntax_node(
8840 &mut self,
8841 _: &SelectSmallerSyntaxNode,
8842 cx: &mut ViewContext<Self>,
8843 ) {
8844 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8845 if let Some(selections) = stack.pop() {
8846 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8847 s.select(selections.to_vec());
8848 });
8849 }
8850 self.select_larger_syntax_node_stack = stack;
8851 }
8852
8853 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
8854 if !EditorSettings::get_global(cx).gutter.runnables {
8855 self.clear_tasks();
8856 return Task::ready(());
8857 }
8858 let project = self.project.as_ref().map(Model::downgrade);
8859 cx.spawn(|this, mut cx| async move {
8860 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
8861 let Some(project) = project.and_then(|p| p.upgrade()) else {
8862 return;
8863 };
8864 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
8865 this.display_map.update(cx, |map, cx| map.snapshot(cx))
8866 }) else {
8867 return;
8868 };
8869
8870 let hide_runnables = project
8871 .update(&mut cx, |project, cx| {
8872 // Do not display any test indicators in non-dev server remote projects.
8873 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
8874 })
8875 .unwrap_or(true);
8876 if hide_runnables {
8877 return;
8878 }
8879 let new_rows =
8880 cx.background_executor()
8881 .spawn({
8882 let snapshot = display_snapshot.clone();
8883 async move {
8884 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
8885 }
8886 })
8887 .await;
8888 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
8889
8890 this.update(&mut cx, |this, _| {
8891 this.clear_tasks();
8892 for (key, value) in rows {
8893 this.insert_tasks(key, value);
8894 }
8895 })
8896 .ok();
8897 })
8898 }
8899 fn fetch_runnable_ranges(
8900 snapshot: &DisplaySnapshot,
8901 range: Range<Anchor>,
8902 ) -> Vec<language::RunnableRange> {
8903 snapshot.buffer_snapshot.runnable_ranges(range).collect()
8904 }
8905
8906 fn runnable_rows(
8907 project: Model<Project>,
8908 snapshot: DisplaySnapshot,
8909 runnable_ranges: Vec<RunnableRange>,
8910 mut cx: AsyncWindowContext,
8911 ) -> Vec<((BufferId, u32), RunnableTasks)> {
8912 runnable_ranges
8913 .into_iter()
8914 .filter_map(|mut runnable| {
8915 let tasks = cx
8916 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
8917 .ok()?;
8918 if tasks.is_empty() {
8919 return None;
8920 }
8921
8922 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
8923
8924 let row = snapshot
8925 .buffer_snapshot
8926 .buffer_line_for_row(MultiBufferRow(point.row))?
8927 .1
8928 .start
8929 .row;
8930
8931 let context_range =
8932 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
8933 Some((
8934 (runnable.buffer_id, row),
8935 RunnableTasks {
8936 templates: tasks,
8937 offset: MultiBufferOffset(runnable.run_range.start),
8938 context_range,
8939 column: point.column,
8940 extra_variables: runnable.extra_captures,
8941 },
8942 ))
8943 })
8944 .collect()
8945 }
8946
8947 fn templates_with_tags(
8948 project: &Model<Project>,
8949 runnable: &mut Runnable,
8950 cx: &WindowContext,
8951 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
8952 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
8953 let (worktree_id, file) = project
8954 .buffer_for_id(runnable.buffer, cx)
8955 .and_then(|buffer| buffer.read(cx).file())
8956 .map(|file| (file.worktree_id(cx), file.clone()))
8957 .unzip();
8958
8959 (
8960 project.task_store().read(cx).task_inventory().cloned(),
8961 worktree_id,
8962 file,
8963 )
8964 });
8965
8966 let tags = mem::take(&mut runnable.tags);
8967 let mut tags: Vec<_> = tags
8968 .into_iter()
8969 .flat_map(|tag| {
8970 let tag = tag.0.clone();
8971 inventory
8972 .as_ref()
8973 .into_iter()
8974 .flat_map(|inventory| {
8975 inventory.read(cx).list_tasks(
8976 file.clone(),
8977 Some(runnable.language.clone()),
8978 worktree_id,
8979 cx,
8980 )
8981 })
8982 .filter(move |(_, template)| {
8983 template.tags.iter().any(|source_tag| source_tag == &tag)
8984 })
8985 })
8986 .sorted_by_key(|(kind, _)| kind.to_owned())
8987 .collect();
8988 if let Some((leading_tag_source, _)) = tags.first() {
8989 // Strongest source wins; if we have worktree tag binding, prefer that to
8990 // global and language bindings;
8991 // if we have a global binding, prefer that to language binding.
8992 let first_mismatch = tags
8993 .iter()
8994 .position(|(tag_source, _)| tag_source != leading_tag_source);
8995 if let Some(index) = first_mismatch {
8996 tags.truncate(index);
8997 }
8998 }
8999
9000 tags
9001 }
9002
9003 pub fn move_to_enclosing_bracket(
9004 &mut self,
9005 _: &MoveToEnclosingBracket,
9006 cx: &mut ViewContext<Self>,
9007 ) {
9008 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9009 s.move_offsets_with(|snapshot, selection| {
9010 let Some(enclosing_bracket_ranges) =
9011 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9012 else {
9013 return;
9014 };
9015
9016 let mut best_length = usize::MAX;
9017 let mut best_inside = false;
9018 let mut best_in_bracket_range = false;
9019 let mut best_destination = None;
9020 for (open, close) in enclosing_bracket_ranges {
9021 let close = close.to_inclusive();
9022 let length = close.end() - open.start;
9023 let inside = selection.start >= open.end && selection.end <= *close.start();
9024 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9025 || close.contains(&selection.head());
9026
9027 // If best is next to a bracket and current isn't, skip
9028 if !in_bracket_range && best_in_bracket_range {
9029 continue;
9030 }
9031
9032 // Prefer smaller lengths unless best is inside and current isn't
9033 if length > best_length && (best_inside || !inside) {
9034 continue;
9035 }
9036
9037 best_length = length;
9038 best_inside = inside;
9039 best_in_bracket_range = in_bracket_range;
9040 best_destination = Some(
9041 if close.contains(&selection.start) && close.contains(&selection.end) {
9042 if inside {
9043 open.end
9044 } else {
9045 open.start
9046 }
9047 } else if inside {
9048 *close.start()
9049 } else {
9050 *close.end()
9051 },
9052 );
9053 }
9054
9055 if let Some(destination) = best_destination {
9056 selection.collapse_to(destination, SelectionGoal::None);
9057 }
9058 })
9059 });
9060 }
9061
9062 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9063 self.end_selection(cx);
9064 self.selection_history.mode = SelectionHistoryMode::Undoing;
9065 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9066 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9067 self.select_next_state = entry.select_next_state;
9068 self.select_prev_state = entry.select_prev_state;
9069 self.add_selections_state = entry.add_selections_state;
9070 self.request_autoscroll(Autoscroll::newest(), cx);
9071 }
9072 self.selection_history.mode = SelectionHistoryMode::Normal;
9073 }
9074
9075 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9076 self.end_selection(cx);
9077 self.selection_history.mode = SelectionHistoryMode::Redoing;
9078 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9079 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9080 self.select_next_state = entry.select_next_state;
9081 self.select_prev_state = entry.select_prev_state;
9082 self.add_selections_state = entry.add_selections_state;
9083 self.request_autoscroll(Autoscroll::newest(), cx);
9084 }
9085 self.selection_history.mode = SelectionHistoryMode::Normal;
9086 }
9087
9088 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9089 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9090 }
9091
9092 pub fn expand_excerpts_down(
9093 &mut self,
9094 action: &ExpandExcerptsDown,
9095 cx: &mut ViewContext<Self>,
9096 ) {
9097 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9098 }
9099
9100 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9101 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9102 }
9103
9104 pub fn expand_excerpts_for_direction(
9105 &mut self,
9106 lines: u32,
9107 direction: ExpandExcerptDirection,
9108 cx: &mut ViewContext<Self>,
9109 ) {
9110 let selections = self.selections.disjoint_anchors();
9111
9112 let lines = if lines == 0 {
9113 EditorSettings::get_global(cx).expand_excerpt_lines
9114 } else {
9115 lines
9116 };
9117
9118 self.buffer.update(cx, |buffer, cx| {
9119 let snapshot = buffer.snapshot(cx);
9120 let mut excerpt_ids = selections
9121 .iter()
9122 .flat_map(|selection| {
9123 snapshot
9124 .excerpts_for_range(selection.range())
9125 .map(|excerpt| excerpt.id())
9126 })
9127 .collect::<Vec<_>>();
9128 excerpt_ids.sort();
9129 excerpt_ids.dedup();
9130 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
9131 })
9132 }
9133
9134 pub fn expand_excerpt(
9135 &mut self,
9136 excerpt: ExcerptId,
9137 direction: ExpandExcerptDirection,
9138 cx: &mut ViewContext<Self>,
9139 ) {
9140 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9141 self.buffer.update(cx, |buffer, cx| {
9142 buffer.expand_excerpts([excerpt], lines, direction, cx)
9143 })
9144 }
9145
9146 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9147 self.go_to_diagnostic_impl(Direction::Next, cx)
9148 }
9149
9150 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9151 self.go_to_diagnostic_impl(Direction::Prev, cx)
9152 }
9153
9154 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9155 let buffer = self.buffer.read(cx).snapshot(cx);
9156 let selection = self.selections.newest::<usize>(cx);
9157
9158 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9159 if direction == Direction::Next {
9160 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9161 self.activate_diagnostics(popover.group_id(), cx);
9162 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9163 let primary_range_start = active_diagnostics.primary_range.start;
9164 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9165 let mut new_selection = s.newest_anchor().clone();
9166 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9167 s.select_anchors(vec![new_selection.clone()]);
9168 });
9169 }
9170 return;
9171 }
9172 }
9173
9174 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9175 active_diagnostics
9176 .primary_range
9177 .to_offset(&buffer)
9178 .to_inclusive()
9179 });
9180 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9181 if active_primary_range.contains(&selection.head()) {
9182 *active_primary_range.start()
9183 } else {
9184 selection.head()
9185 }
9186 } else {
9187 selection.head()
9188 };
9189 let snapshot = self.snapshot(cx);
9190 loop {
9191 let diagnostics = if direction == Direction::Prev {
9192 buffer
9193 .diagnostics_in_range(0..search_start, true)
9194 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9195 diagnostic,
9196 range: range.to_offset(&buffer),
9197 })
9198 .collect::<Vec<_>>()
9199 } else {
9200 buffer
9201 .diagnostics_in_range(search_start..buffer.len(), false)
9202 .map(|DiagnosticEntry { diagnostic, range }| DiagnosticEntry {
9203 diagnostic,
9204 range: range.to_offset(&buffer),
9205 })
9206 .collect::<Vec<_>>()
9207 }
9208 .into_iter()
9209 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9210 let group = diagnostics
9211 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9212 // be sorted in a stable way
9213 // skip until we are at current active diagnostic, if it exists
9214 .skip_while(|entry| {
9215 (match direction {
9216 Direction::Prev => entry.range.start >= search_start,
9217 Direction::Next => entry.range.start <= search_start,
9218 }) && self
9219 .active_diagnostics
9220 .as_ref()
9221 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9222 })
9223 .find_map(|entry| {
9224 if entry.diagnostic.is_primary
9225 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9226 && !entry.range.is_empty()
9227 // if we match with the active diagnostic, skip it
9228 && Some(entry.diagnostic.group_id)
9229 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9230 {
9231 Some((entry.range, entry.diagnostic.group_id))
9232 } else {
9233 None
9234 }
9235 });
9236
9237 if let Some((primary_range, group_id)) = group {
9238 self.activate_diagnostics(group_id, cx);
9239 if self.active_diagnostics.is_some() {
9240 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9241 s.select(vec![Selection {
9242 id: selection.id,
9243 start: primary_range.start,
9244 end: primary_range.start,
9245 reversed: false,
9246 goal: SelectionGoal::None,
9247 }]);
9248 });
9249 }
9250 break;
9251 } else {
9252 // Cycle around to the start of the buffer, potentially moving back to the start of
9253 // the currently active diagnostic.
9254 active_primary_range.take();
9255 if direction == Direction::Prev {
9256 if search_start == buffer.len() {
9257 break;
9258 } else {
9259 search_start = buffer.len();
9260 }
9261 } else if search_start == 0 {
9262 break;
9263 } else {
9264 search_start = 0;
9265 }
9266 }
9267 }
9268 }
9269
9270 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9271 let snapshot = self.snapshot(cx);
9272 let selection = self.selections.newest::<Point>(cx);
9273 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9274 }
9275
9276 fn go_to_hunk_after_position(
9277 &mut self,
9278 snapshot: &EditorSnapshot,
9279 position: Point,
9280 cx: &mut ViewContext<Editor>,
9281 ) -> Option<MultiBufferDiffHunk> {
9282 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9283 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9284 snapshot,
9285 position,
9286 ix > 0,
9287 snapshot.diff_map.diff_hunks_in_range(
9288 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9289 &snapshot.buffer_snapshot,
9290 ),
9291 cx,
9292 ) {
9293 return Some(hunk);
9294 }
9295 }
9296 None
9297 }
9298
9299 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9300 let snapshot = self.snapshot(cx);
9301 let selection = self.selections.newest::<Point>(cx);
9302 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9303 }
9304
9305 fn go_to_hunk_before_position(
9306 &mut self,
9307 snapshot: &EditorSnapshot,
9308 position: Point,
9309 cx: &mut ViewContext<Editor>,
9310 ) -> Option<MultiBufferDiffHunk> {
9311 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9312 .into_iter()
9313 .enumerate()
9314 {
9315 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9316 snapshot,
9317 position,
9318 ix > 0,
9319 snapshot
9320 .diff_map
9321 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9322 cx,
9323 ) {
9324 return Some(hunk);
9325 }
9326 }
9327 None
9328 }
9329
9330 fn go_to_next_hunk_in_direction(
9331 &mut self,
9332 snapshot: &DisplaySnapshot,
9333 initial_point: Point,
9334 is_wrapped: bool,
9335 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9336 cx: &mut ViewContext<Editor>,
9337 ) -> Option<MultiBufferDiffHunk> {
9338 let display_point = initial_point.to_display_point(snapshot);
9339 let mut hunks = hunks
9340 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9341 .filter(|(display_hunk, _)| {
9342 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9343 })
9344 .dedup();
9345
9346 if let Some((display_hunk, hunk)) = hunks.next() {
9347 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9348 let row = display_hunk.start_display_row();
9349 let point = DisplayPoint::new(row, 0);
9350 s.select_display_ranges([point..point]);
9351 });
9352
9353 Some(hunk)
9354 } else {
9355 None
9356 }
9357 }
9358
9359 pub fn go_to_definition(
9360 &mut self,
9361 _: &GoToDefinition,
9362 cx: &mut ViewContext<Self>,
9363 ) -> Task<Result<Navigated>> {
9364 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9365 cx.spawn(|editor, mut cx| async move {
9366 if definition.await? == Navigated::Yes {
9367 return Ok(Navigated::Yes);
9368 }
9369 match editor.update(&mut cx, |editor, cx| {
9370 editor.find_all_references(&FindAllReferences, cx)
9371 })? {
9372 Some(references) => references.await,
9373 None => Ok(Navigated::No),
9374 }
9375 })
9376 }
9377
9378 pub fn go_to_declaration(
9379 &mut self,
9380 _: &GoToDeclaration,
9381 cx: &mut ViewContext<Self>,
9382 ) -> Task<Result<Navigated>> {
9383 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9384 }
9385
9386 pub fn go_to_declaration_split(
9387 &mut self,
9388 _: &GoToDeclaration,
9389 cx: &mut ViewContext<Self>,
9390 ) -> Task<Result<Navigated>> {
9391 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9392 }
9393
9394 pub fn go_to_implementation(
9395 &mut self,
9396 _: &GoToImplementation,
9397 cx: &mut ViewContext<Self>,
9398 ) -> Task<Result<Navigated>> {
9399 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9400 }
9401
9402 pub fn go_to_implementation_split(
9403 &mut self,
9404 _: &GoToImplementationSplit,
9405 cx: &mut ViewContext<Self>,
9406 ) -> Task<Result<Navigated>> {
9407 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9408 }
9409
9410 pub fn go_to_type_definition(
9411 &mut self,
9412 _: &GoToTypeDefinition,
9413 cx: &mut ViewContext<Self>,
9414 ) -> Task<Result<Navigated>> {
9415 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9416 }
9417
9418 pub fn go_to_definition_split(
9419 &mut self,
9420 _: &GoToDefinitionSplit,
9421 cx: &mut ViewContext<Self>,
9422 ) -> Task<Result<Navigated>> {
9423 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9424 }
9425
9426 pub fn go_to_type_definition_split(
9427 &mut self,
9428 _: &GoToTypeDefinitionSplit,
9429 cx: &mut ViewContext<Self>,
9430 ) -> Task<Result<Navigated>> {
9431 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9432 }
9433
9434 fn go_to_definition_of_kind(
9435 &mut self,
9436 kind: GotoDefinitionKind,
9437 split: bool,
9438 cx: &mut ViewContext<Self>,
9439 ) -> Task<Result<Navigated>> {
9440 let Some(provider) = self.semantics_provider.clone() else {
9441 return Task::ready(Ok(Navigated::No));
9442 };
9443 let head = self.selections.newest::<usize>(cx).head();
9444 let buffer = self.buffer.read(cx);
9445 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9446 text_anchor
9447 } else {
9448 return Task::ready(Ok(Navigated::No));
9449 };
9450
9451 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9452 return Task::ready(Ok(Navigated::No));
9453 };
9454
9455 cx.spawn(|editor, mut cx| async move {
9456 let definitions = definitions.await?;
9457 let navigated = editor
9458 .update(&mut cx, |editor, cx| {
9459 editor.navigate_to_hover_links(
9460 Some(kind),
9461 definitions
9462 .into_iter()
9463 .filter(|location| {
9464 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9465 })
9466 .map(HoverLink::Text)
9467 .collect::<Vec<_>>(),
9468 split,
9469 cx,
9470 )
9471 })?
9472 .await?;
9473 anyhow::Ok(navigated)
9474 })
9475 }
9476
9477 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9478 let selection = self.selections.newest_anchor();
9479 let head = selection.head();
9480 let tail = selection.tail();
9481
9482 let Some((buffer, start_position)) =
9483 self.buffer.read(cx).text_anchor_for_position(head, cx)
9484 else {
9485 return;
9486 };
9487
9488 let end_position = if head != tail {
9489 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9490 return;
9491 };
9492 Some(pos)
9493 } else {
9494 None
9495 };
9496
9497 let url_finder = cx.spawn(|editor, mut cx| async move {
9498 let url = if let Some(end_pos) = end_position {
9499 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9500 } else {
9501 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9502 };
9503
9504 if let Some(url) = url {
9505 editor.update(&mut cx, |_, cx| {
9506 cx.open_url(&url);
9507 })
9508 } else {
9509 Ok(())
9510 }
9511 });
9512
9513 url_finder.detach();
9514 }
9515
9516 pub fn open_selected_filename(&mut self, _: &OpenSelectedFilename, cx: &mut ViewContext<Self>) {
9517 let Some(workspace) = self.workspace() else {
9518 return;
9519 };
9520
9521 let position = self.selections.newest_anchor().head();
9522
9523 let Some((buffer, buffer_position)) =
9524 self.buffer.read(cx).text_anchor_for_position(position, cx)
9525 else {
9526 return;
9527 };
9528
9529 let project = self.project.clone();
9530
9531 cx.spawn(|_, mut cx| async move {
9532 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9533
9534 if let Some((_, path)) = result {
9535 workspace
9536 .update(&mut cx, |workspace, cx| {
9537 workspace.open_resolved_path(path, cx)
9538 })?
9539 .await?;
9540 }
9541 anyhow::Ok(())
9542 })
9543 .detach();
9544 }
9545
9546 pub(crate) fn navigate_to_hover_links(
9547 &mut self,
9548 kind: Option<GotoDefinitionKind>,
9549 mut definitions: Vec<HoverLink>,
9550 split: bool,
9551 cx: &mut ViewContext<Editor>,
9552 ) -> Task<Result<Navigated>> {
9553 // If there is one definition, just open it directly
9554 if definitions.len() == 1 {
9555 let definition = definitions.pop().unwrap();
9556
9557 enum TargetTaskResult {
9558 Location(Option<Location>),
9559 AlreadyNavigated,
9560 }
9561
9562 let target_task = match definition {
9563 HoverLink::Text(link) => {
9564 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9565 }
9566 HoverLink::InlayHint(lsp_location, server_id) => {
9567 let computation = self.compute_target_location(lsp_location, server_id, cx);
9568 cx.background_executor().spawn(async move {
9569 let location = computation.await?;
9570 Ok(TargetTaskResult::Location(location))
9571 })
9572 }
9573 HoverLink::Url(url) => {
9574 cx.open_url(&url);
9575 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9576 }
9577 HoverLink::File(path) => {
9578 if let Some(workspace) = self.workspace() {
9579 cx.spawn(|_, mut cx| async move {
9580 workspace
9581 .update(&mut cx, |workspace, cx| {
9582 workspace.open_resolved_path(path, cx)
9583 })?
9584 .await
9585 .map(|_| TargetTaskResult::AlreadyNavigated)
9586 })
9587 } else {
9588 Task::ready(Ok(TargetTaskResult::Location(None)))
9589 }
9590 }
9591 };
9592 cx.spawn(|editor, mut cx| async move {
9593 let target = match target_task.await.context("target resolution task")? {
9594 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9595 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9596 TargetTaskResult::Location(Some(target)) => target,
9597 };
9598
9599 editor.update(&mut cx, |editor, cx| {
9600 let Some(workspace) = editor.workspace() else {
9601 return Navigated::No;
9602 };
9603 let pane = workspace.read(cx).active_pane().clone();
9604
9605 let range = target.range.to_offset(target.buffer.read(cx));
9606 let range = editor.range_for_match(&range);
9607
9608 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9609 let buffer = target.buffer.read(cx);
9610 let range = check_multiline_range(buffer, range);
9611 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9612 s.select_ranges([range]);
9613 });
9614 } else {
9615 cx.window_context().defer(move |cx| {
9616 let target_editor: View<Self> =
9617 workspace.update(cx, |workspace, cx| {
9618 let pane = if split {
9619 workspace.adjacent_pane(cx)
9620 } else {
9621 workspace.active_pane().clone()
9622 };
9623
9624 workspace.open_project_item(
9625 pane,
9626 target.buffer.clone(),
9627 true,
9628 true,
9629 cx,
9630 )
9631 });
9632 target_editor.update(cx, |target_editor, cx| {
9633 // When selecting a definition in a different buffer, disable the nav history
9634 // to avoid creating a history entry at the previous cursor location.
9635 pane.update(cx, |pane, _| pane.disable_history());
9636 let buffer = target.buffer.read(cx);
9637 let range = check_multiline_range(buffer, range);
9638 target_editor.change_selections(
9639 Some(Autoscroll::focused()),
9640 cx,
9641 |s| {
9642 s.select_ranges([range]);
9643 },
9644 );
9645 pane.update(cx, |pane, _| pane.enable_history());
9646 });
9647 });
9648 }
9649 Navigated::Yes
9650 })
9651 })
9652 } else if !definitions.is_empty() {
9653 cx.spawn(|editor, mut cx| async move {
9654 let (title, location_tasks, workspace) = editor
9655 .update(&mut cx, |editor, cx| {
9656 let tab_kind = match kind {
9657 Some(GotoDefinitionKind::Implementation) => "Implementations",
9658 _ => "Definitions",
9659 };
9660 let title = definitions
9661 .iter()
9662 .find_map(|definition| match definition {
9663 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9664 let buffer = origin.buffer.read(cx);
9665 format!(
9666 "{} for {}",
9667 tab_kind,
9668 buffer
9669 .text_for_range(origin.range.clone())
9670 .collect::<String>()
9671 )
9672 }),
9673 HoverLink::InlayHint(_, _) => None,
9674 HoverLink::Url(_) => None,
9675 HoverLink::File(_) => None,
9676 })
9677 .unwrap_or(tab_kind.to_string());
9678 let location_tasks = definitions
9679 .into_iter()
9680 .map(|definition| match definition {
9681 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9682 HoverLink::InlayHint(lsp_location, server_id) => {
9683 editor.compute_target_location(lsp_location, server_id, cx)
9684 }
9685 HoverLink::Url(_) => Task::ready(Ok(None)),
9686 HoverLink::File(_) => Task::ready(Ok(None)),
9687 })
9688 .collect::<Vec<_>>();
9689 (title, location_tasks, editor.workspace().clone())
9690 })
9691 .context("location tasks preparation")?;
9692
9693 let locations = future::join_all(location_tasks)
9694 .await
9695 .into_iter()
9696 .filter_map(|location| location.transpose())
9697 .collect::<Result<_>>()
9698 .context("location tasks")?;
9699
9700 let Some(workspace) = workspace else {
9701 return Ok(Navigated::No);
9702 };
9703 let opened = workspace
9704 .update(&mut cx, |workspace, cx| {
9705 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9706 })
9707 .ok();
9708
9709 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9710 })
9711 } else {
9712 Task::ready(Ok(Navigated::No))
9713 }
9714 }
9715
9716 fn compute_target_location(
9717 &self,
9718 lsp_location: lsp::Location,
9719 server_id: LanguageServerId,
9720 cx: &mut ViewContext<Self>,
9721 ) -> Task<anyhow::Result<Option<Location>>> {
9722 let Some(project) = self.project.clone() else {
9723 return Task::ready(Ok(None));
9724 };
9725
9726 cx.spawn(move |editor, mut cx| async move {
9727 let location_task = editor.update(&mut cx, |_, cx| {
9728 project.update(cx, |project, cx| {
9729 let language_server_name = project
9730 .language_server_statuses(cx)
9731 .find(|(id, _)| server_id == *id)
9732 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9733 language_server_name.map(|language_server_name| {
9734 project.open_local_buffer_via_lsp(
9735 lsp_location.uri.clone(),
9736 server_id,
9737 language_server_name,
9738 cx,
9739 )
9740 })
9741 })
9742 })?;
9743 let location = match location_task {
9744 Some(task) => Some({
9745 let target_buffer_handle = task.await.context("open local buffer")?;
9746 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9747 let target_start = target_buffer
9748 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9749 let target_end = target_buffer
9750 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9751 target_buffer.anchor_after(target_start)
9752 ..target_buffer.anchor_before(target_end)
9753 })?;
9754 Location {
9755 buffer: target_buffer_handle,
9756 range,
9757 }
9758 }),
9759 None => None,
9760 };
9761 Ok(location)
9762 })
9763 }
9764
9765 pub fn find_all_references(
9766 &mut self,
9767 _: &FindAllReferences,
9768 cx: &mut ViewContext<Self>,
9769 ) -> Option<Task<Result<Navigated>>> {
9770 let selection = self.selections.newest::<usize>(cx);
9771 let multi_buffer = self.buffer.read(cx);
9772 let head = selection.head();
9773
9774 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9775 let head_anchor = multi_buffer_snapshot.anchor_at(
9776 head,
9777 if head < selection.tail() {
9778 Bias::Right
9779 } else {
9780 Bias::Left
9781 },
9782 );
9783
9784 match self
9785 .find_all_references_task_sources
9786 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9787 {
9788 Ok(_) => {
9789 log::info!(
9790 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9791 );
9792 return None;
9793 }
9794 Err(i) => {
9795 self.find_all_references_task_sources.insert(i, head_anchor);
9796 }
9797 }
9798
9799 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9800 let workspace = self.workspace()?;
9801 let project = workspace.read(cx).project().clone();
9802 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9803 Some(cx.spawn(|editor, mut cx| async move {
9804 let _cleanup = defer({
9805 let mut cx = cx.clone();
9806 move || {
9807 let _ = editor.update(&mut cx, |editor, _| {
9808 if let Ok(i) =
9809 editor
9810 .find_all_references_task_sources
9811 .binary_search_by(|anchor| {
9812 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9813 })
9814 {
9815 editor.find_all_references_task_sources.remove(i);
9816 }
9817 });
9818 }
9819 });
9820
9821 let locations = references.await?;
9822 if locations.is_empty() {
9823 return anyhow::Ok(Navigated::No);
9824 }
9825
9826 workspace.update(&mut cx, |workspace, cx| {
9827 let title = locations
9828 .first()
9829 .as_ref()
9830 .map(|location| {
9831 let buffer = location.buffer.read(cx);
9832 format!(
9833 "References to `{}`",
9834 buffer
9835 .text_for_range(location.range.clone())
9836 .collect::<String>()
9837 )
9838 })
9839 .unwrap();
9840 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9841 Navigated::Yes
9842 })
9843 }))
9844 }
9845
9846 /// Opens a multibuffer with the given project locations in it
9847 pub fn open_locations_in_multibuffer(
9848 workspace: &mut Workspace,
9849 mut locations: Vec<Location>,
9850 title: String,
9851 split: bool,
9852 cx: &mut ViewContext<Workspace>,
9853 ) {
9854 // If there are multiple definitions, open them in a multibuffer
9855 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9856 let mut locations = locations.into_iter().peekable();
9857 let mut ranges_to_highlight = Vec::new();
9858 let capability = workspace.project().read(cx).capability();
9859
9860 let excerpt_buffer = cx.new_model(|cx| {
9861 let mut multibuffer = MultiBuffer::new(capability);
9862 while let Some(location) = locations.next() {
9863 let buffer = location.buffer.read(cx);
9864 let mut ranges_for_buffer = Vec::new();
9865 let range = location.range.to_offset(buffer);
9866 ranges_for_buffer.push(range.clone());
9867
9868 while let Some(next_location) = locations.peek() {
9869 if next_location.buffer == location.buffer {
9870 ranges_for_buffer.push(next_location.range.to_offset(buffer));
9871 locations.next();
9872 } else {
9873 break;
9874 }
9875 }
9876
9877 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
9878 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
9879 location.buffer.clone(),
9880 ranges_for_buffer,
9881 DEFAULT_MULTIBUFFER_CONTEXT,
9882 cx,
9883 ))
9884 }
9885
9886 multibuffer.with_title(title)
9887 });
9888
9889 let editor = cx.new_view(|cx| {
9890 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
9891 });
9892 editor.update(cx, |editor, cx| {
9893 if let Some(first_range) = ranges_to_highlight.first() {
9894 editor.change_selections(None, cx, |selections| {
9895 selections.clear_disjoint();
9896 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
9897 });
9898 }
9899 editor.highlight_background::<Self>(
9900 &ranges_to_highlight,
9901 |theme| theme.editor_highlighted_line_background,
9902 cx,
9903 );
9904 editor.register_buffers_with_language_servers(cx);
9905 });
9906
9907 let item = Box::new(editor);
9908 let item_id = item.item_id();
9909
9910 if split {
9911 workspace.split_item(SplitDirection::Right, item.clone(), cx);
9912 } else {
9913 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
9914 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
9915 pane.close_current_preview_item(cx)
9916 } else {
9917 None
9918 }
9919 });
9920 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
9921 }
9922 workspace.active_pane().update(cx, |pane, cx| {
9923 pane.set_preview_item_id(Some(item_id), cx);
9924 });
9925 }
9926
9927 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
9928 use language::ToOffset as _;
9929
9930 let provider = self.semantics_provider.clone()?;
9931 let selection = self.selections.newest_anchor().clone();
9932 let (cursor_buffer, cursor_buffer_position) = self
9933 .buffer
9934 .read(cx)
9935 .text_anchor_for_position(selection.head(), cx)?;
9936 let (tail_buffer, cursor_buffer_position_end) = self
9937 .buffer
9938 .read(cx)
9939 .text_anchor_for_position(selection.tail(), cx)?;
9940 if tail_buffer != cursor_buffer {
9941 return None;
9942 }
9943
9944 let snapshot = cursor_buffer.read(cx).snapshot();
9945 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
9946 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
9947 let prepare_rename = provider
9948 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
9949 .unwrap_or_else(|| Task::ready(Ok(None)));
9950 drop(snapshot);
9951
9952 Some(cx.spawn(|this, mut cx| async move {
9953 let rename_range = if let Some(range) = prepare_rename.await? {
9954 Some(range)
9955 } else {
9956 this.update(&mut cx, |this, cx| {
9957 let buffer = this.buffer.read(cx).snapshot(cx);
9958 let mut buffer_highlights = this
9959 .document_highlights_for_position(selection.head(), &buffer)
9960 .filter(|highlight| {
9961 highlight.start.excerpt_id == selection.head().excerpt_id
9962 && highlight.end.excerpt_id == selection.head().excerpt_id
9963 });
9964 buffer_highlights
9965 .next()
9966 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
9967 })?
9968 };
9969 if let Some(rename_range) = rename_range {
9970 this.update(&mut cx, |this, cx| {
9971 let snapshot = cursor_buffer.read(cx).snapshot();
9972 let rename_buffer_range = rename_range.to_offset(&snapshot);
9973 let cursor_offset_in_rename_range =
9974 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
9975 let cursor_offset_in_rename_range_end =
9976 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
9977
9978 this.take_rename(false, cx);
9979 let buffer = this.buffer.read(cx).read(cx);
9980 let cursor_offset = selection.head().to_offset(&buffer);
9981 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
9982 let rename_end = rename_start + rename_buffer_range.len();
9983 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
9984 let mut old_highlight_id = None;
9985 let old_name: Arc<str> = buffer
9986 .chunks(rename_start..rename_end, true)
9987 .map(|chunk| {
9988 if old_highlight_id.is_none() {
9989 old_highlight_id = chunk.syntax_highlight_id;
9990 }
9991 chunk.text
9992 })
9993 .collect::<String>()
9994 .into();
9995
9996 drop(buffer);
9997
9998 // Position the selection in the rename editor so that it matches the current selection.
9999 this.show_local_selections = false;
10000 let rename_editor = cx.new_view(|cx| {
10001 let mut editor = Editor::single_line(cx);
10002 editor.buffer.update(cx, |buffer, cx| {
10003 buffer.edit([(0..0, old_name.clone())], None, cx)
10004 });
10005 let rename_selection_range = match cursor_offset_in_rename_range
10006 .cmp(&cursor_offset_in_rename_range_end)
10007 {
10008 Ordering::Equal => {
10009 editor.select_all(&SelectAll, cx);
10010 return editor;
10011 }
10012 Ordering::Less => {
10013 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10014 }
10015 Ordering::Greater => {
10016 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10017 }
10018 };
10019 if rename_selection_range.end > old_name.len() {
10020 editor.select_all(&SelectAll, cx);
10021 } else {
10022 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10023 s.select_ranges([rename_selection_range]);
10024 });
10025 }
10026 editor
10027 });
10028 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10029 if e == &EditorEvent::Focused {
10030 cx.emit(EditorEvent::FocusedIn)
10031 }
10032 })
10033 .detach();
10034
10035 let write_highlights =
10036 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10037 let read_highlights =
10038 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10039 let ranges = write_highlights
10040 .iter()
10041 .flat_map(|(_, ranges)| ranges.iter())
10042 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10043 .cloned()
10044 .collect();
10045
10046 this.highlight_text::<Rename>(
10047 ranges,
10048 HighlightStyle {
10049 fade_out: Some(0.6),
10050 ..Default::default()
10051 },
10052 cx,
10053 );
10054 let rename_focus_handle = rename_editor.focus_handle(cx);
10055 cx.focus(&rename_focus_handle);
10056 let block_id = this.insert_blocks(
10057 [BlockProperties {
10058 style: BlockStyle::Flex,
10059 placement: BlockPlacement::Below(range.start),
10060 height: 1,
10061 render: Arc::new({
10062 let rename_editor = rename_editor.clone();
10063 move |cx: &mut BlockContext| {
10064 let mut text_style = cx.editor_style.text.clone();
10065 if let Some(highlight_style) = old_highlight_id
10066 .and_then(|h| h.style(&cx.editor_style.syntax))
10067 {
10068 text_style = text_style.highlight(highlight_style);
10069 }
10070 div()
10071 .block_mouse_down()
10072 .pl(cx.anchor_x)
10073 .child(EditorElement::new(
10074 &rename_editor,
10075 EditorStyle {
10076 background: cx.theme().system().transparent,
10077 local_player: cx.editor_style.local_player,
10078 text: text_style,
10079 scrollbar_width: cx.editor_style.scrollbar_width,
10080 syntax: cx.editor_style.syntax.clone(),
10081 status: cx.editor_style.status.clone(),
10082 inlay_hints_style: HighlightStyle {
10083 font_weight: Some(FontWeight::BOLD),
10084 ..make_inlay_hints_style(cx)
10085 },
10086 inline_completion_styles: make_suggestion_styles(
10087 cx,
10088 ),
10089 ..EditorStyle::default()
10090 },
10091 ))
10092 .into_any_element()
10093 }
10094 }),
10095 priority: 0,
10096 }],
10097 Some(Autoscroll::fit()),
10098 cx,
10099 )[0];
10100 this.pending_rename = Some(RenameState {
10101 range,
10102 old_name,
10103 editor: rename_editor,
10104 block_id,
10105 });
10106 })?;
10107 }
10108
10109 Ok(())
10110 }))
10111 }
10112
10113 pub fn confirm_rename(
10114 &mut self,
10115 _: &ConfirmRename,
10116 cx: &mut ViewContext<Self>,
10117 ) -> Option<Task<Result<()>>> {
10118 let rename = self.take_rename(false, cx)?;
10119 let workspace = self.workspace()?.downgrade();
10120 let (buffer, start) = self
10121 .buffer
10122 .read(cx)
10123 .text_anchor_for_position(rename.range.start, cx)?;
10124 let (end_buffer, _) = self
10125 .buffer
10126 .read(cx)
10127 .text_anchor_for_position(rename.range.end, cx)?;
10128 if buffer != end_buffer {
10129 return None;
10130 }
10131
10132 let old_name = rename.old_name;
10133 let new_name = rename.editor.read(cx).text(cx);
10134
10135 let rename = self.semantics_provider.as_ref()?.perform_rename(
10136 &buffer,
10137 start,
10138 new_name.clone(),
10139 cx,
10140 )?;
10141
10142 Some(cx.spawn(|editor, mut cx| async move {
10143 let project_transaction = rename.await?;
10144 Self::open_project_transaction(
10145 &editor,
10146 workspace,
10147 project_transaction,
10148 format!("Rename: {} → {}", old_name, new_name),
10149 cx.clone(),
10150 )
10151 .await?;
10152
10153 editor.update(&mut cx, |editor, cx| {
10154 editor.refresh_document_highlights(cx);
10155 })?;
10156 Ok(())
10157 }))
10158 }
10159
10160 fn take_rename(
10161 &mut self,
10162 moving_cursor: bool,
10163 cx: &mut ViewContext<Self>,
10164 ) -> Option<RenameState> {
10165 let rename = self.pending_rename.take()?;
10166 if rename.editor.focus_handle(cx).is_focused(cx) {
10167 cx.focus(&self.focus_handle);
10168 }
10169
10170 self.remove_blocks(
10171 [rename.block_id].into_iter().collect(),
10172 Some(Autoscroll::fit()),
10173 cx,
10174 );
10175 self.clear_highlights::<Rename>(cx);
10176 self.show_local_selections = true;
10177
10178 if moving_cursor {
10179 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10180 editor.selections.newest::<usize>(cx).head()
10181 });
10182
10183 // Update the selection to match the position of the selection inside
10184 // the rename editor.
10185 let snapshot = self.buffer.read(cx).read(cx);
10186 let rename_range = rename.range.to_offset(&snapshot);
10187 let cursor_in_editor = snapshot
10188 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10189 .min(rename_range.end);
10190 drop(snapshot);
10191
10192 self.change_selections(None, cx, |s| {
10193 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10194 });
10195 } else {
10196 self.refresh_document_highlights(cx);
10197 }
10198
10199 Some(rename)
10200 }
10201
10202 pub fn pending_rename(&self) -> Option<&RenameState> {
10203 self.pending_rename.as_ref()
10204 }
10205
10206 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10207 let project = match &self.project {
10208 Some(project) => project.clone(),
10209 None => return None,
10210 };
10211
10212 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffer, cx))
10213 }
10214
10215 fn format_selections(
10216 &mut self,
10217 _: &FormatSelections,
10218 cx: &mut ViewContext<Self>,
10219 ) -> Option<Task<Result<()>>> {
10220 let project = match &self.project {
10221 Some(project) => project.clone(),
10222 None => return None,
10223 };
10224
10225 let selections = self
10226 .selections
10227 .all_adjusted(cx)
10228 .into_iter()
10229 .filter(|s| !s.is_empty())
10230 .collect_vec();
10231
10232 Some(self.perform_format(
10233 project,
10234 FormatTrigger::Manual,
10235 FormatTarget::Ranges(selections),
10236 cx,
10237 ))
10238 }
10239
10240 fn perform_format(
10241 &mut self,
10242 project: Model<Project>,
10243 trigger: FormatTrigger,
10244 target: FormatTarget,
10245 cx: &mut ViewContext<Self>,
10246 ) -> Task<Result<()>> {
10247 let buffer = self.buffer().clone();
10248 let mut buffers = buffer.read(cx).all_buffers();
10249 if trigger == FormatTrigger::Save {
10250 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10251 }
10252
10253 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10254 let format = project.update(cx, |project, cx| {
10255 project.format(buffers, true, trigger, target, cx)
10256 });
10257
10258 cx.spawn(|_, mut cx| async move {
10259 let transaction = futures::select_biased! {
10260 () = timeout => {
10261 log::warn!("timed out waiting for formatting");
10262 None
10263 }
10264 transaction = format.log_err().fuse() => transaction,
10265 };
10266
10267 buffer
10268 .update(&mut cx, |buffer, cx| {
10269 if let Some(transaction) = transaction {
10270 if !buffer.is_singleton() {
10271 buffer.push_transaction(&transaction.0, cx);
10272 }
10273 }
10274
10275 cx.notify();
10276 })
10277 .ok();
10278
10279 Ok(())
10280 })
10281 }
10282
10283 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10284 if let Some(project) = self.project.clone() {
10285 self.buffer.update(cx, |multi_buffer, cx| {
10286 project.update(cx, |project, cx| {
10287 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10288 });
10289 })
10290 }
10291 }
10292
10293 fn cancel_language_server_work(
10294 &mut self,
10295 _: &actions::CancelLanguageServerWork,
10296 cx: &mut ViewContext<Self>,
10297 ) {
10298 if let Some(project) = self.project.clone() {
10299 self.buffer.update(cx, |multi_buffer, cx| {
10300 project.update(cx, |project, cx| {
10301 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10302 });
10303 })
10304 }
10305 }
10306
10307 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10308 cx.show_character_palette();
10309 }
10310
10311 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10312 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10313 let buffer = self.buffer.read(cx).snapshot(cx);
10314 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10315 let is_valid = buffer
10316 .diagnostics_in_range(active_diagnostics.primary_range.clone(), false)
10317 .any(|entry| {
10318 let range = entry.range.to_offset(&buffer);
10319 entry.diagnostic.is_primary
10320 && !range.is_empty()
10321 && range.start == primary_range_start
10322 && entry.diagnostic.message == active_diagnostics.primary_message
10323 });
10324
10325 if is_valid != active_diagnostics.is_valid {
10326 active_diagnostics.is_valid = is_valid;
10327 let mut new_styles = HashMap::default();
10328 for (block_id, diagnostic) in &active_diagnostics.blocks {
10329 new_styles.insert(
10330 *block_id,
10331 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10332 );
10333 }
10334 self.display_map.update(cx, |display_map, _cx| {
10335 display_map.replace_blocks(new_styles)
10336 });
10337 }
10338 }
10339 }
10340
10341 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
10342 self.dismiss_diagnostics(cx);
10343 let snapshot = self.snapshot(cx);
10344 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10345 let buffer = self.buffer.read(cx).snapshot(cx);
10346
10347 let mut primary_range = None;
10348 let mut primary_message = None;
10349 let mut group_end = Point::zero();
10350 let diagnostic_group = buffer
10351 .diagnostic_group(group_id)
10352 .filter_map(|entry| {
10353 let start = entry.range.start.to_point(&buffer);
10354 let end = entry.range.end.to_point(&buffer);
10355 if snapshot.is_line_folded(MultiBufferRow(start.row))
10356 && (start.row == end.row
10357 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10358 {
10359 return None;
10360 }
10361 if end > group_end {
10362 group_end = end;
10363 }
10364 if entry.diagnostic.is_primary {
10365 primary_range = Some(entry.range.clone());
10366 primary_message = Some(entry.diagnostic.message.clone());
10367 }
10368 Some(entry)
10369 })
10370 .collect::<Vec<_>>();
10371 let primary_range = primary_range?;
10372 let primary_message = primary_message?;
10373
10374 let blocks = display_map
10375 .insert_blocks(
10376 diagnostic_group.iter().map(|entry| {
10377 let diagnostic = entry.diagnostic.clone();
10378 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10379 BlockProperties {
10380 style: BlockStyle::Fixed,
10381 placement: BlockPlacement::Below(
10382 buffer.anchor_after(entry.range.start),
10383 ),
10384 height: message_height,
10385 render: diagnostic_block_renderer(diagnostic, None, true, true),
10386 priority: 0,
10387 }
10388 }),
10389 cx,
10390 )
10391 .into_iter()
10392 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10393 .collect();
10394
10395 Some(ActiveDiagnosticGroup {
10396 primary_range,
10397 primary_message,
10398 group_id,
10399 blocks,
10400 is_valid: true,
10401 })
10402 });
10403 }
10404
10405 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10406 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10407 self.display_map.update(cx, |display_map, cx| {
10408 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10409 });
10410 cx.notify();
10411 }
10412 }
10413
10414 pub fn set_selections_from_remote(
10415 &mut self,
10416 selections: Vec<Selection<Anchor>>,
10417 pending_selection: Option<Selection<Anchor>>,
10418 cx: &mut ViewContext<Self>,
10419 ) {
10420 let old_cursor_position = self.selections.newest_anchor().head();
10421 self.selections.change_with(cx, |s| {
10422 s.select_anchors(selections);
10423 if let Some(pending_selection) = pending_selection {
10424 s.set_pending(pending_selection, SelectMode::Character);
10425 } else {
10426 s.clear_pending();
10427 }
10428 });
10429 self.selections_did_change(false, &old_cursor_position, true, cx);
10430 }
10431
10432 fn push_to_selection_history(&mut self) {
10433 self.selection_history.push(SelectionHistoryEntry {
10434 selections: self.selections.disjoint_anchors(),
10435 select_next_state: self.select_next_state.clone(),
10436 select_prev_state: self.select_prev_state.clone(),
10437 add_selections_state: self.add_selections_state.clone(),
10438 });
10439 }
10440
10441 pub fn transact(
10442 &mut self,
10443 cx: &mut ViewContext<Self>,
10444 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10445 ) -> Option<TransactionId> {
10446 self.start_transaction_at(Instant::now(), cx);
10447 update(self, cx);
10448 self.end_transaction_at(Instant::now(), cx)
10449 }
10450
10451 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10452 self.end_selection(cx);
10453 if let Some(tx_id) = self
10454 .buffer
10455 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10456 {
10457 self.selection_history
10458 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10459 cx.emit(EditorEvent::TransactionBegun {
10460 transaction_id: tx_id,
10461 })
10462 }
10463 }
10464
10465 pub fn end_transaction_at(
10466 &mut self,
10467 now: Instant,
10468 cx: &mut ViewContext<Self>,
10469 ) -> Option<TransactionId> {
10470 if let Some(transaction_id) = self
10471 .buffer
10472 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10473 {
10474 if let Some((_, end_selections)) =
10475 self.selection_history.transaction_mut(transaction_id)
10476 {
10477 *end_selections = Some(self.selections.disjoint_anchors());
10478 } else {
10479 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10480 }
10481
10482 cx.emit(EditorEvent::Edited { transaction_id });
10483 Some(transaction_id)
10484 } else {
10485 None
10486 }
10487 }
10488
10489 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10490 if self.is_singleton(cx) {
10491 let selection = self.selections.newest::<Point>(cx);
10492
10493 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10494 let range = if selection.is_empty() {
10495 let point = selection.head().to_display_point(&display_map);
10496 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10497 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10498 .to_point(&display_map);
10499 start..end
10500 } else {
10501 selection.range()
10502 };
10503 if display_map.folds_in_range(range).next().is_some() {
10504 self.unfold_lines(&Default::default(), cx)
10505 } else {
10506 self.fold(&Default::default(), cx)
10507 }
10508 } else {
10509 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10510 let mut toggled_buffers = HashSet::default();
10511 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10512 self.selections
10513 .disjoint_anchors()
10514 .into_iter()
10515 .map(|selection| selection.range()),
10516 ) {
10517 let buffer_id = buffer_snapshot.remote_id();
10518 if toggled_buffers.insert(buffer_id) {
10519 if self.buffer_folded(buffer_id, cx) {
10520 self.unfold_buffer(buffer_id, cx);
10521 } else {
10522 self.fold_buffer(buffer_id, cx);
10523 }
10524 }
10525 }
10526 }
10527 }
10528
10529 pub fn toggle_fold_recursive(
10530 &mut self,
10531 _: &actions::ToggleFoldRecursive,
10532 cx: &mut ViewContext<Self>,
10533 ) {
10534 let selection = self.selections.newest::<Point>(cx);
10535
10536 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10537 let range = if selection.is_empty() {
10538 let point = selection.head().to_display_point(&display_map);
10539 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10540 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10541 .to_point(&display_map);
10542 start..end
10543 } else {
10544 selection.range()
10545 };
10546 if display_map.folds_in_range(range).next().is_some() {
10547 self.unfold_recursive(&Default::default(), cx)
10548 } else {
10549 self.fold_recursive(&Default::default(), cx)
10550 }
10551 }
10552
10553 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10554 if self.is_singleton(cx) {
10555 let mut to_fold = Vec::new();
10556 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10557 let selections = self.selections.all_adjusted(cx);
10558
10559 for selection in selections {
10560 let range = selection.range().sorted();
10561 let buffer_start_row = range.start.row;
10562
10563 if range.start.row != range.end.row {
10564 let mut found = false;
10565 let mut row = range.start.row;
10566 while row <= range.end.row {
10567 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10568 {
10569 found = true;
10570 row = crease.range().end.row + 1;
10571 to_fold.push(crease);
10572 } else {
10573 row += 1
10574 }
10575 }
10576 if found {
10577 continue;
10578 }
10579 }
10580
10581 for row in (0..=range.start.row).rev() {
10582 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10583 if crease.range().end.row >= buffer_start_row {
10584 to_fold.push(crease);
10585 if row <= range.start.row {
10586 break;
10587 }
10588 }
10589 }
10590 }
10591 }
10592
10593 self.fold_creases(to_fold, true, cx);
10594 } else {
10595 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10596 let mut folded_buffers = HashSet::default();
10597 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10598 self.selections
10599 .disjoint_anchors()
10600 .into_iter()
10601 .map(|selection| selection.range()),
10602 ) {
10603 let buffer_id = buffer_snapshot.remote_id();
10604 if folded_buffers.insert(buffer_id) {
10605 self.fold_buffer(buffer_id, cx);
10606 }
10607 }
10608 }
10609 }
10610
10611 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10612 if !self.buffer.read(cx).is_singleton() {
10613 return;
10614 }
10615
10616 let fold_at_level = fold_at.level;
10617 let snapshot = self.buffer.read(cx).snapshot(cx);
10618 let mut to_fold = Vec::new();
10619 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10620
10621 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10622 while start_row < end_row {
10623 match self
10624 .snapshot(cx)
10625 .crease_for_buffer_row(MultiBufferRow(start_row))
10626 {
10627 Some(crease) => {
10628 let nested_start_row = crease.range().start.row + 1;
10629 let nested_end_row = crease.range().end.row;
10630
10631 if current_level < fold_at_level {
10632 stack.push((nested_start_row, nested_end_row, current_level + 1));
10633 } else if current_level == fold_at_level {
10634 to_fold.push(crease);
10635 }
10636
10637 start_row = nested_end_row + 1;
10638 }
10639 None => start_row += 1,
10640 }
10641 }
10642 }
10643
10644 self.fold_creases(to_fold, true, cx);
10645 }
10646
10647 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10648 if self.buffer.read(cx).is_singleton() {
10649 let mut fold_ranges = Vec::new();
10650 let snapshot = self.buffer.read(cx).snapshot(cx);
10651
10652 for row in 0..snapshot.max_row().0 {
10653 if let Some(foldable_range) =
10654 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10655 {
10656 fold_ranges.push(foldable_range);
10657 }
10658 }
10659
10660 self.fold_creases(fold_ranges, true, cx);
10661 } else {
10662 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10663 editor
10664 .update(&mut cx, |editor, cx| {
10665 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10666 editor.fold_buffer(buffer_id, cx);
10667 }
10668 })
10669 .ok();
10670 });
10671 }
10672 }
10673
10674 pub fn fold_function_bodies(
10675 &mut self,
10676 _: &actions::FoldFunctionBodies,
10677 cx: &mut ViewContext<Self>,
10678 ) {
10679 let snapshot = self.buffer.read(cx).snapshot(cx);
10680 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10681 return;
10682 };
10683 let creases = buffer
10684 .function_body_fold_ranges(0..buffer.len())
10685 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10686 .collect();
10687
10688 self.fold_creases(creases, true, cx);
10689 }
10690
10691 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10692 let mut to_fold = Vec::new();
10693 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10694 let selections = self.selections.all_adjusted(cx);
10695
10696 for selection in selections {
10697 let range = selection.range().sorted();
10698 let buffer_start_row = range.start.row;
10699
10700 if range.start.row != range.end.row {
10701 let mut found = false;
10702 for row in range.start.row..=range.end.row {
10703 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10704 found = true;
10705 to_fold.push(crease);
10706 }
10707 }
10708 if found {
10709 continue;
10710 }
10711 }
10712
10713 for row in (0..=range.start.row).rev() {
10714 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10715 if crease.range().end.row >= buffer_start_row {
10716 to_fold.push(crease);
10717 } else {
10718 break;
10719 }
10720 }
10721 }
10722 }
10723
10724 self.fold_creases(to_fold, true, cx);
10725 }
10726
10727 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10728 let buffer_row = fold_at.buffer_row;
10729 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10730
10731 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10732 let autoscroll = self
10733 .selections
10734 .all::<Point>(cx)
10735 .iter()
10736 .any(|selection| crease.range().overlaps(&selection.range()));
10737
10738 self.fold_creases(vec![crease], autoscroll, cx);
10739 }
10740 }
10741
10742 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10743 if self.is_singleton(cx) {
10744 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10745 let buffer = &display_map.buffer_snapshot;
10746 let selections = self.selections.all::<Point>(cx);
10747 let ranges = selections
10748 .iter()
10749 .map(|s| {
10750 let range = s.display_range(&display_map).sorted();
10751 let mut start = range.start.to_point(&display_map);
10752 let mut end = range.end.to_point(&display_map);
10753 start.column = 0;
10754 end.column = buffer.line_len(MultiBufferRow(end.row));
10755 start..end
10756 })
10757 .collect::<Vec<_>>();
10758
10759 self.unfold_ranges(&ranges, true, true, cx);
10760 } else {
10761 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10762 let mut unfolded_buffers = HashSet::default();
10763 for (_, buffer_snapshot, _) in multi_buffer_snapshot.excerpts_in_ranges(
10764 self.selections
10765 .disjoint_anchors()
10766 .into_iter()
10767 .map(|selection| selection.range()),
10768 ) {
10769 let buffer_id = buffer_snapshot.remote_id();
10770 if unfolded_buffers.insert(buffer_id) {
10771 self.unfold_buffer(buffer_id, cx);
10772 }
10773 }
10774 }
10775 }
10776
10777 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10778 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10779 let selections = self.selections.all::<Point>(cx);
10780 let ranges = selections
10781 .iter()
10782 .map(|s| {
10783 let mut range = s.display_range(&display_map).sorted();
10784 *range.start.column_mut() = 0;
10785 *range.end.column_mut() = display_map.line_len(range.end.row());
10786 let start = range.start.to_point(&display_map);
10787 let end = range.end.to_point(&display_map);
10788 start..end
10789 })
10790 .collect::<Vec<_>>();
10791
10792 self.unfold_ranges(&ranges, true, true, cx);
10793 }
10794
10795 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10796 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10797
10798 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10799 ..Point::new(
10800 unfold_at.buffer_row.0,
10801 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10802 );
10803
10804 let autoscroll = self
10805 .selections
10806 .all::<Point>(cx)
10807 .iter()
10808 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10809
10810 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10811 }
10812
10813 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
10814 if self.buffer.read(cx).is_singleton() {
10815 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10816 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
10817 } else {
10818 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10819 editor
10820 .update(&mut cx, |editor, cx| {
10821 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10822 editor.unfold_buffer(buffer_id, cx);
10823 }
10824 })
10825 .ok();
10826 });
10827 }
10828 }
10829
10830 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
10831 let selections = self.selections.all::<Point>(cx);
10832 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10833 let line_mode = self.selections.line_mode;
10834 let ranges = selections
10835 .into_iter()
10836 .map(|s| {
10837 if line_mode {
10838 let start = Point::new(s.start.row, 0);
10839 let end = Point::new(
10840 s.end.row,
10841 display_map
10842 .buffer_snapshot
10843 .line_len(MultiBufferRow(s.end.row)),
10844 );
10845 Crease::simple(start..end, display_map.fold_placeholder.clone())
10846 } else {
10847 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
10848 }
10849 })
10850 .collect::<Vec<_>>();
10851 self.fold_creases(ranges, true, cx);
10852 }
10853
10854 pub fn fold_creases<T: ToOffset + Clone>(
10855 &mut self,
10856 creases: Vec<Crease<T>>,
10857 auto_scroll: bool,
10858 cx: &mut ViewContext<Self>,
10859 ) {
10860 if creases.is_empty() {
10861 return;
10862 }
10863
10864 let mut buffers_affected = HashSet::default();
10865 let multi_buffer = self.buffer().read(cx);
10866 for crease in &creases {
10867 if let Some((_, buffer, _)) =
10868 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
10869 {
10870 buffers_affected.insert(buffer.read(cx).remote_id());
10871 };
10872 }
10873
10874 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
10875
10876 if auto_scroll {
10877 self.request_autoscroll(Autoscroll::fit(), cx);
10878 }
10879
10880 for buffer_id in buffers_affected {
10881 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10882 }
10883
10884 cx.notify();
10885
10886 if let Some(active_diagnostics) = self.active_diagnostics.take() {
10887 // Clear diagnostics block when folding a range that contains it.
10888 let snapshot = self.snapshot(cx);
10889 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
10890 drop(snapshot);
10891 self.active_diagnostics = Some(active_diagnostics);
10892 self.dismiss_diagnostics(cx);
10893 } else {
10894 self.active_diagnostics = Some(active_diagnostics);
10895 }
10896 }
10897
10898 self.scrollbar_marker_state.dirty = true;
10899 }
10900
10901 /// Removes any folds whose ranges intersect any of the given ranges.
10902 pub fn unfold_ranges<T: ToOffset + Clone>(
10903 &mut self,
10904 ranges: &[Range<T>],
10905 inclusive: bool,
10906 auto_scroll: bool,
10907 cx: &mut ViewContext<Self>,
10908 ) {
10909 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10910 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
10911 });
10912 }
10913
10914 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10915 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
10916 return;
10917 }
10918 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10919 return;
10920 };
10921 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10922 self.display_map
10923 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
10924 cx.emit(EditorEvent::BufferFoldToggled {
10925 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
10926 folded: true,
10927 });
10928 cx.notify();
10929 }
10930
10931 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
10932 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
10933 return;
10934 }
10935 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
10936 return;
10937 };
10938 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
10939 self.display_map.update(cx, |display_map, cx| {
10940 display_map.unfold_buffer(buffer_id, cx);
10941 });
10942 cx.emit(EditorEvent::BufferFoldToggled {
10943 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
10944 folded: false,
10945 });
10946 cx.notify();
10947 }
10948
10949 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
10950 self.display_map.read(cx).buffer_folded(buffer)
10951 }
10952
10953 /// Removes any folds with the given ranges.
10954 pub fn remove_folds_with_type<T: ToOffset + Clone>(
10955 &mut self,
10956 ranges: &[Range<T>],
10957 type_id: TypeId,
10958 auto_scroll: bool,
10959 cx: &mut ViewContext<Self>,
10960 ) {
10961 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
10962 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
10963 });
10964 }
10965
10966 fn remove_folds_with<T: ToOffset + Clone>(
10967 &mut self,
10968 ranges: &[Range<T>],
10969 auto_scroll: bool,
10970 cx: &mut ViewContext<Self>,
10971 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
10972 ) {
10973 if ranges.is_empty() {
10974 return;
10975 }
10976
10977 let mut buffers_affected = HashSet::default();
10978 let multi_buffer = self.buffer().read(cx);
10979 for range in ranges {
10980 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
10981 buffers_affected.insert(buffer.read(cx).remote_id());
10982 };
10983 }
10984
10985 self.display_map.update(cx, update);
10986
10987 if auto_scroll {
10988 self.request_autoscroll(Autoscroll::fit(), cx);
10989 }
10990
10991 for buffer_id in buffers_affected {
10992 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
10993 }
10994
10995 cx.notify();
10996 self.scrollbar_marker_state.dirty = true;
10997 self.active_indent_guides_state.dirty = true;
10998 }
10999
11000 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11001 self.display_map.read(cx).fold_placeholder.clone()
11002 }
11003
11004 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11005 if hovered != self.gutter_hovered {
11006 self.gutter_hovered = hovered;
11007 cx.notify();
11008 }
11009 }
11010
11011 pub fn insert_blocks(
11012 &mut self,
11013 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11014 autoscroll: Option<Autoscroll>,
11015 cx: &mut ViewContext<Self>,
11016 ) -> Vec<CustomBlockId> {
11017 let blocks = self
11018 .display_map
11019 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11020 if let Some(autoscroll) = autoscroll {
11021 self.request_autoscroll(autoscroll, cx);
11022 }
11023 cx.notify();
11024 blocks
11025 }
11026
11027 pub fn resize_blocks(
11028 &mut self,
11029 heights: HashMap<CustomBlockId, u32>,
11030 autoscroll: Option<Autoscroll>,
11031 cx: &mut ViewContext<Self>,
11032 ) {
11033 self.display_map
11034 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11035 if let Some(autoscroll) = autoscroll {
11036 self.request_autoscroll(autoscroll, cx);
11037 }
11038 cx.notify();
11039 }
11040
11041 pub fn replace_blocks(
11042 &mut self,
11043 renderers: HashMap<CustomBlockId, RenderBlock>,
11044 autoscroll: Option<Autoscroll>,
11045 cx: &mut ViewContext<Self>,
11046 ) {
11047 self.display_map
11048 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11049 if let Some(autoscroll) = autoscroll {
11050 self.request_autoscroll(autoscroll, cx);
11051 }
11052 cx.notify();
11053 }
11054
11055 pub fn remove_blocks(
11056 &mut self,
11057 block_ids: HashSet<CustomBlockId>,
11058 autoscroll: Option<Autoscroll>,
11059 cx: &mut ViewContext<Self>,
11060 ) {
11061 self.display_map.update(cx, |display_map, cx| {
11062 display_map.remove_blocks(block_ids, cx)
11063 });
11064 if let Some(autoscroll) = autoscroll {
11065 self.request_autoscroll(autoscroll, cx);
11066 }
11067 cx.notify();
11068 }
11069
11070 pub fn row_for_block(
11071 &self,
11072 block_id: CustomBlockId,
11073 cx: &mut ViewContext<Self>,
11074 ) -> Option<DisplayRow> {
11075 self.display_map
11076 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11077 }
11078
11079 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11080 self.focused_block = Some(focused_block);
11081 }
11082
11083 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11084 self.focused_block.take()
11085 }
11086
11087 pub fn insert_creases(
11088 &mut self,
11089 creases: impl IntoIterator<Item = Crease<Anchor>>,
11090 cx: &mut ViewContext<Self>,
11091 ) -> Vec<CreaseId> {
11092 self.display_map
11093 .update(cx, |map, cx| map.insert_creases(creases, cx))
11094 }
11095
11096 pub fn remove_creases(
11097 &mut self,
11098 ids: impl IntoIterator<Item = CreaseId>,
11099 cx: &mut ViewContext<Self>,
11100 ) {
11101 self.display_map
11102 .update(cx, |map, cx| map.remove_creases(ids, cx));
11103 }
11104
11105 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11106 self.display_map
11107 .update(cx, |map, cx| map.snapshot(cx))
11108 .longest_row()
11109 }
11110
11111 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11112 self.display_map
11113 .update(cx, |map, cx| map.snapshot(cx))
11114 .max_point()
11115 }
11116
11117 pub fn text(&self, cx: &AppContext) -> String {
11118 self.buffer.read(cx).read(cx).text()
11119 }
11120
11121 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11122 let text = self.text(cx);
11123 let text = text.trim();
11124
11125 if text.is_empty() {
11126 return None;
11127 }
11128
11129 Some(text.to_string())
11130 }
11131
11132 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11133 self.transact(cx, |this, cx| {
11134 this.buffer
11135 .read(cx)
11136 .as_singleton()
11137 .expect("you can only call set_text on editors for singleton buffers")
11138 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11139 });
11140 }
11141
11142 pub fn display_text(&self, cx: &mut AppContext) -> String {
11143 self.display_map
11144 .update(cx, |map, cx| map.snapshot(cx))
11145 .text()
11146 }
11147
11148 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11149 let mut wrap_guides = smallvec::smallvec![];
11150
11151 if self.show_wrap_guides == Some(false) {
11152 return wrap_guides;
11153 }
11154
11155 let settings = self.buffer.read(cx).settings_at(0, cx);
11156 if settings.show_wrap_guides {
11157 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11158 wrap_guides.push((soft_wrap as usize, true));
11159 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11160 wrap_guides.push((soft_wrap as usize, true));
11161 }
11162 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11163 }
11164
11165 wrap_guides
11166 }
11167
11168 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11169 let settings = self.buffer.read(cx).settings_at(0, cx);
11170 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11171 match mode {
11172 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11173 SoftWrap::None
11174 }
11175 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11176 language_settings::SoftWrap::PreferredLineLength => {
11177 SoftWrap::Column(settings.preferred_line_length)
11178 }
11179 language_settings::SoftWrap::Bounded => {
11180 SoftWrap::Bounded(settings.preferred_line_length)
11181 }
11182 }
11183 }
11184
11185 pub fn set_soft_wrap_mode(
11186 &mut self,
11187 mode: language_settings::SoftWrap,
11188 cx: &mut ViewContext<Self>,
11189 ) {
11190 self.soft_wrap_mode_override = Some(mode);
11191 cx.notify();
11192 }
11193
11194 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11195 self.text_style_refinement = Some(style);
11196 }
11197
11198 /// called by the Element so we know what style we were most recently rendered with.
11199 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11200 let rem_size = cx.rem_size();
11201 self.display_map.update(cx, |map, cx| {
11202 map.set_font(
11203 style.text.font(),
11204 style.text.font_size.to_pixels(rem_size),
11205 cx,
11206 )
11207 });
11208 self.style = Some(style);
11209 }
11210
11211 pub fn style(&self) -> Option<&EditorStyle> {
11212 self.style.as_ref()
11213 }
11214
11215 // Called by the element. This method is not designed to be called outside of the editor
11216 // element's layout code because it does not notify when rewrapping is computed synchronously.
11217 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11218 self.display_map
11219 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11220 }
11221
11222 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11223 if self.soft_wrap_mode_override.is_some() {
11224 self.soft_wrap_mode_override.take();
11225 } else {
11226 let soft_wrap = match self.soft_wrap_mode(cx) {
11227 SoftWrap::GitDiff => return,
11228 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11229 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11230 language_settings::SoftWrap::None
11231 }
11232 };
11233 self.soft_wrap_mode_override = Some(soft_wrap);
11234 }
11235 cx.notify();
11236 }
11237
11238 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11239 let Some(workspace) = self.workspace() else {
11240 return;
11241 };
11242 let fs = workspace.read(cx).app_state().fs.clone();
11243 let current_show = TabBarSettings::get_global(cx).show;
11244 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11245 setting.show = Some(!current_show);
11246 });
11247 }
11248
11249 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11250 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11251 self.buffer
11252 .read(cx)
11253 .settings_at(0, cx)
11254 .indent_guides
11255 .enabled
11256 });
11257 self.show_indent_guides = Some(!currently_enabled);
11258 cx.notify();
11259 }
11260
11261 fn should_show_indent_guides(&self) -> Option<bool> {
11262 self.show_indent_guides
11263 }
11264
11265 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11266 let mut editor_settings = EditorSettings::get_global(cx).clone();
11267 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11268 EditorSettings::override_global(editor_settings, cx);
11269 }
11270
11271 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11272 self.use_relative_line_numbers
11273 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11274 }
11275
11276 pub fn toggle_relative_line_numbers(
11277 &mut self,
11278 _: &ToggleRelativeLineNumbers,
11279 cx: &mut ViewContext<Self>,
11280 ) {
11281 let is_relative = self.should_use_relative_line_numbers(cx);
11282 self.set_relative_line_number(Some(!is_relative), cx)
11283 }
11284
11285 pub fn set_relative_line_number(
11286 &mut self,
11287 is_relative: Option<bool>,
11288 cx: &mut ViewContext<Self>,
11289 ) {
11290 self.use_relative_line_numbers = is_relative;
11291 cx.notify();
11292 }
11293
11294 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11295 self.show_gutter = show_gutter;
11296 cx.notify();
11297 }
11298
11299 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11300 self.show_scrollbars = show_scrollbars;
11301 cx.notify();
11302 }
11303
11304 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11305 self.show_line_numbers = Some(show_line_numbers);
11306 cx.notify();
11307 }
11308
11309 pub fn set_show_git_diff_gutter(
11310 &mut self,
11311 show_git_diff_gutter: bool,
11312 cx: &mut ViewContext<Self>,
11313 ) {
11314 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11315 cx.notify();
11316 }
11317
11318 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11319 self.show_code_actions = Some(show_code_actions);
11320 cx.notify();
11321 }
11322
11323 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11324 self.show_runnables = Some(show_runnables);
11325 cx.notify();
11326 }
11327
11328 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11329 if self.display_map.read(cx).masked != masked {
11330 self.display_map.update(cx, |map, _| map.masked = masked);
11331 }
11332 cx.notify()
11333 }
11334
11335 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11336 self.show_wrap_guides = Some(show_wrap_guides);
11337 cx.notify();
11338 }
11339
11340 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11341 self.show_indent_guides = Some(show_indent_guides);
11342 cx.notify();
11343 }
11344
11345 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11346 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11347 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11348 if let Some(dir) = file.abs_path(cx).parent() {
11349 return Some(dir.to_owned());
11350 }
11351 }
11352
11353 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11354 return Some(project_path.path.to_path_buf());
11355 }
11356 }
11357
11358 None
11359 }
11360
11361 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11362 self.active_excerpt(cx)?
11363 .1
11364 .read(cx)
11365 .file()
11366 .and_then(|f| f.as_local())
11367 }
11368
11369 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11370 if let Some(target) = self.target_file(cx) {
11371 cx.reveal_path(&target.abs_path(cx));
11372 }
11373 }
11374
11375 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11376 if let Some(file) = self.target_file(cx) {
11377 if let Some(path) = file.abs_path(cx).to_str() {
11378 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11379 }
11380 }
11381 }
11382
11383 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11384 if let Some(file) = self.target_file(cx) {
11385 if let Some(path) = file.path().to_str() {
11386 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11387 }
11388 }
11389 }
11390
11391 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11392 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11393
11394 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11395 self.start_git_blame(true, cx);
11396 }
11397
11398 cx.notify();
11399 }
11400
11401 pub fn toggle_git_blame_inline(
11402 &mut self,
11403 _: &ToggleGitBlameInline,
11404 cx: &mut ViewContext<Self>,
11405 ) {
11406 self.toggle_git_blame_inline_internal(true, cx);
11407 cx.notify();
11408 }
11409
11410 pub fn git_blame_inline_enabled(&self) -> bool {
11411 self.git_blame_inline_enabled
11412 }
11413
11414 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11415 self.show_selection_menu = self
11416 .show_selection_menu
11417 .map(|show_selections_menu| !show_selections_menu)
11418 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11419
11420 cx.notify();
11421 }
11422
11423 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11424 self.show_selection_menu
11425 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11426 }
11427
11428 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11429 if let Some(project) = self.project.as_ref() {
11430 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11431 return;
11432 };
11433
11434 if buffer.read(cx).file().is_none() {
11435 return;
11436 }
11437
11438 let focused = self.focus_handle(cx).contains_focused(cx);
11439
11440 let project = project.clone();
11441 let blame =
11442 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11443 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11444 self.blame = Some(blame);
11445 }
11446 }
11447
11448 fn toggle_git_blame_inline_internal(
11449 &mut self,
11450 user_triggered: bool,
11451 cx: &mut ViewContext<Self>,
11452 ) {
11453 if self.git_blame_inline_enabled {
11454 self.git_blame_inline_enabled = false;
11455 self.show_git_blame_inline = false;
11456 self.show_git_blame_inline_delay_task.take();
11457 } else {
11458 self.git_blame_inline_enabled = true;
11459 self.start_git_blame_inline(user_triggered, cx);
11460 }
11461
11462 cx.notify();
11463 }
11464
11465 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11466 self.start_git_blame(user_triggered, cx);
11467
11468 if ProjectSettings::get_global(cx)
11469 .git
11470 .inline_blame_delay()
11471 .is_some()
11472 {
11473 self.start_inline_blame_timer(cx);
11474 } else {
11475 self.show_git_blame_inline = true
11476 }
11477 }
11478
11479 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11480 self.blame.as_ref()
11481 }
11482
11483 pub fn show_git_blame_gutter(&self) -> bool {
11484 self.show_git_blame_gutter
11485 }
11486
11487 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11488 self.show_git_blame_gutter && self.has_blame_entries(cx)
11489 }
11490
11491 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11492 self.show_git_blame_inline
11493 && self.focus_handle.is_focused(cx)
11494 && !self.newest_selection_head_on_empty_line(cx)
11495 && self.has_blame_entries(cx)
11496 }
11497
11498 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11499 self.blame()
11500 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11501 }
11502
11503 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11504 let cursor_anchor = self.selections.newest_anchor().head();
11505
11506 let snapshot = self.buffer.read(cx).snapshot(cx);
11507 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11508
11509 snapshot.line_len(buffer_row) == 0
11510 }
11511
11512 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11513 let buffer_and_selection = maybe!({
11514 let selection = self.selections.newest::<Point>(cx);
11515 let selection_range = selection.range();
11516
11517 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11518 (buffer, selection_range.start.row..selection_range.end.row)
11519 } else {
11520 let multi_buffer = self.buffer().read(cx);
11521 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11522 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11523
11524 let (excerpt, range) = if selection.reversed {
11525 buffer_ranges.first()
11526 } else {
11527 buffer_ranges.last()
11528 }?;
11529
11530 let snapshot = excerpt.buffer();
11531 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11532 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11533 (
11534 multi_buffer.buffer(excerpt.buffer_id()).unwrap().clone(),
11535 selection,
11536 )
11537 };
11538
11539 Some((buffer, selection))
11540 });
11541
11542 let Some((buffer, selection)) = buffer_and_selection else {
11543 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11544 };
11545
11546 let Some(project) = self.project.as_ref() else {
11547 return Task::ready(Err(anyhow!("editor does not have project")));
11548 };
11549
11550 project.update(cx, |project, cx| {
11551 project.get_permalink_to_line(&buffer, selection, cx)
11552 })
11553 }
11554
11555 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11556 let permalink_task = self.get_permalink_to_line(cx);
11557 let workspace = self.workspace();
11558
11559 cx.spawn(|_, mut cx| async move {
11560 match permalink_task.await {
11561 Ok(permalink) => {
11562 cx.update(|cx| {
11563 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11564 })
11565 .ok();
11566 }
11567 Err(err) => {
11568 let message = format!("Failed to copy permalink: {err}");
11569
11570 Err::<(), anyhow::Error>(err).log_err();
11571
11572 if let Some(workspace) = workspace {
11573 workspace
11574 .update(&mut cx, |workspace, cx| {
11575 struct CopyPermalinkToLine;
11576
11577 workspace.show_toast(
11578 Toast::new(
11579 NotificationId::unique::<CopyPermalinkToLine>(),
11580 message,
11581 ),
11582 cx,
11583 )
11584 })
11585 .ok();
11586 }
11587 }
11588 }
11589 })
11590 .detach();
11591 }
11592
11593 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11594 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11595 if let Some(file) = self.target_file(cx) {
11596 if let Some(path) = file.path().to_str() {
11597 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11598 }
11599 }
11600 }
11601
11602 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11603 let permalink_task = self.get_permalink_to_line(cx);
11604 let workspace = self.workspace();
11605
11606 cx.spawn(|_, mut cx| async move {
11607 match permalink_task.await {
11608 Ok(permalink) => {
11609 cx.update(|cx| {
11610 cx.open_url(permalink.as_ref());
11611 })
11612 .ok();
11613 }
11614 Err(err) => {
11615 let message = format!("Failed to open permalink: {err}");
11616
11617 Err::<(), anyhow::Error>(err).log_err();
11618
11619 if let Some(workspace) = workspace {
11620 workspace
11621 .update(&mut cx, |workspace, cx| {
11622 struct OpenPermalinkToLine;
11623
11624 workspace.show_toast(
11625 Toast::new(
11626 NotificationId::unique::<OpenPermalinkToLine>(),
11627 message,
11628 ),
11629 cx,
11630 )
11631 })
11632 .ok();
11633 }
11634 }
11635 }
11636 })
11637 .detach();
11638 }
11639
11640 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11641 self.insert_uuid(UuidVersion::V4, cx);
11642 }
11643
11644 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11645 self.insert_uuid(UuidVersion::V7, cx);
11646 }
11647
11648 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11649 self.transact(cx, |this, cx| {
11650 let edits = this
11651 .selections
11652 .all::<Point>(cx)
11653 .into_iter()
11654 .map(|selection| {
11655 let uuid = match version {
11656 UuidVersion::V4 => uuid::Uuid::new_v4(),
11657 UuidVersion::V7 => uuid::Uuid::now_v7(),
11658 };
11659
11660 (selection.range(), uuid.to_string())
11661 });
11662 this.edit(edits, cx);
11663 this.refresh_inline_completion(true, false, cx);
11664 });
11665 }
11666
11667 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11668 /// last highlight added will be used.
11669 ///
11670 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11671 pub fn highlight_rows<T: 'static>(
11672 &mut self,
11673 range: Range<Anchor>,
11674 color: Hsla,
11675 should_autoscroll: bool,
11676 cx: &mut ViewContext<Self>,
11677 ) {
11678 let snapshot = self.buffer().read(cx).snapshot(cx);
11679 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11680 let ix = row_highlights.binary_search_by(|highlight| {
11681 Ordering::Equal
11682 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11683 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11684 });
11685
11686 if let Err(mut ix) = ix {
11687 let index = post_inc(&mut self.highlight_order);
11688
11689 // If this range intersects with the preceding highlight, then merge it with
11690 // the preceding highlight. Otherwise insert a new highlight.
11691 let mut merged = false;
11692 if ix > 0 {
11693 let prev_highlight = &mut row_highlights[ix - 1];
11694 if prev_highlight
11695 .range
11696 .end
11697 .cmp(&range.start, &snapshot)
11698 .is_ge()
11699 {
11700 ix -= 1;
11701 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11702 prev_highlight.range.end = range.end;
11703 }
11704 merged = true;
11705 prev_highlight.index = index;
11706 prev_highlight.color = color;
11707 prev_highlight.should_autoscroll = should_autoscroll;
11708 }
11709 }
11710
11711 if !merged {
11712 row_highlights.insert(
11713 ix,
11714 RowHighlight {
11715 range: range.clone(),
11716 index,
11717 color,
11718 should_autoscroll,
11719 },
11720 );
11721 }
11722
11723 // If any of the following highlights intersect with this one, merge them.
11724 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11725 let highlight = &row_highlights[ix];
11726 if next_highlight
11727 .range
11728 .start
11729 .cmp(&highlight.range.end, &snapshot)
11730 .is_le()
11731 {
11732 if next_highlight
11733 .range
11734 .end
11735 .cmp(&highlight.range.end, &snapshot)
11736 .is_gt()
11737 {
11738 row_highlights[ix].range.end = next_highlight.range.end;
11739 }
11740 row_highlights.remove(ix + 1);
11741 } else {
11742 break;
11743 }
11744 }
11745 }
11746 }
11747
11748 /// Remove any highlighted row ranges of the given type that intersect the
11749 /// given ranges.
11750 pub fn remove_highlighted_rows<T: 'static>(
11751 &mut self,
11752 ranges_to_remove: Vec<Range<Anchor>>,
11753 cx: &mut ViewContext<Self>,
11754 ) {
11755 let snapshot = self.buffer().read(cx).snapshot(cx);
11756 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11757 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11758 row_highlights.retain(|highlight| {
11759 while let Some(range_to_remove) = ranges_to_remove.peek() {
11760 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11761 Ordering::Less | Ordering::Equal => {
11762 ranges_to_remove.next();
11763 }
11764 Ordering::Greater => {
11765 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11766 Ordering::Less | Ordering::Equal => {
11767 return false;
11768 }
11769 Ordering::Greater => break,
11770 }
11771 }
11772 }
11773 }
11774
11775 true
11776 })
11777 }
11778
11779 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
11780 pub fn clear_row_highlights<T: 'static>(&mut self) {
11781 self.highlighted_rows.remove(&TypeId::of::<T>());
11782 }
11783
11784 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
11785 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
11786 self.highlighted_rows
11787 .get(&TypeId::of::<T>())
11788 .map_or(&[] as &[_], |vec| vec.as_slice())
11789 .iter()
11790 .map(|highlight| (highlight.range.clone(), highlight.color))
11791 }
11792
11793 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
11794 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
11795 /// Allows to ignore certain kinds of highlights.
11796 pub fn highlighted_display_rows(
11797 &mut self,
11798 cx: &mut WindowContext,
11799 ) -> BTreeMap<DisplayRow, Hsla> {
11800 let snapshot = self.snapshot(cx);
11801 let mut used_highlight_orders = HashMap::default();
11802 self.highlighted_rows
11803 .iter()
11804 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
11805 .fold(
11806 BTreeMap::<DisplayRow, Hsla>::new(),
11807 |mut unique_rows, highlight| {
11808 let start = highlight.range.start.to_display_point(&snapshot);
11809 let end = highlight.range.end.to_display_point(&snapshot);
11810 let start_row = start.row().0;
11811 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
11812 && end.column() == 0
11813 {
11814 end.row().0.saturating_sub(1)
11815 } else {
11816 end.row().0
11817 };
11818 for row in start_row..=end_row {
11819 let used_index =
11820 used_highlight_orders.entry(row).or_insert(highlight.index);
11821 if highlight.index >= *used_index {
11822 *used_index = highlight.index;
11823 unique_rows.insert(DisplayRow(row), highlight.color);
11824 }
11825 }
11826 unique_rows
11827 },
11828 )
11829 }
11830
11831 pub fn highlighted_display_row_for_autoscroll(
11832 &self,
11833 snapshot: &DisplaySnapshot,
11834 ) -> Option<DisplayRow> {
11835 self.highlighted_rows
11836 .values()
11837 .flat_map(|highlighted_rows| highlighted_rows.iter())
11838 .filter_map(|highlight| {
11839 if highlight.should_autoscroll {
11840 Some(highlight.range.start.to_display_point(snapshot).row())
11841 } else {
11842 None
11843 }
11844 })
11845 .min()
11846 }
11847
11848 pub fn set_search_within_ranges(
11849 &mut self,
11850 ranges: &[Range<Anchor>],
11851 cx: &mut ViewContext<Self>,
11852 ) {
11853 self.highlight_background::<SearchWithinRange>(
11854 ranges,
11855 |colors| colors.editor_document_highlight_read_background,
11856 cx,
11857 )
11858 }
11859
11860 pub fn set_breadcrumb_header(&mut self, new_header: String) {
11861 self.breadcrumb_header = Some(new_header);
11862 }
11863
11864 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
11865 self.clear_background_highlights::<SearchWithinRange>(cx);
11866 }
11867
11868 pub fn highlight_background<T: 'static>(
11869 &mut self,
11870 ranges: &[Range<Anchor>],
11871 color_fetcher: fn(&ThemeColors) -> Hsla,
11872 cx: &mut ViewContext<Self>,
11873 ) {
11874 self.background_highlights
11875 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11876 self.scrollbar_marker_state.dirty = true;
11877 cx.notify();
11878 }
11879
11880 pub fn clear_background_highlights<T: 'static>(
11881 &mut self,
11882 cx: &mut ViewContext<Self>,
11883 ) -> Option<BackgroundHighlight> {
11884 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
11885 if !text_highlights.1.is_empty() {
11886 self.scrollbar_marker_state.dirty = true;
11887 cx.notify();
11888 }
11889 Some(text_highlights)
11890 }
11891
11892 pub fn highlight_gutter<T: 'static>(
11893 &mut self,
11894 ranges: &[Range<Anchor>],
11895 color_fetcher: fn(&AppContext) -> Hsla,
11896 cx: &mut ViewContext<Self>,
11897 ) {
11898 self.gutter_highlights
11899 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
11900 cx.notify();
11901 }
11902
11903 pub fn clear_gutter_highlights<T: 'static>(
11904 &mut self,
11905 cx: &mut ViewContext<Self>,
11906 ) -> Option<GutterHighlight> {
11907 cx.notify();
11908 self.gutter_highlights.remove(&TypeId::of::<T>())
11909 }
11910
11911 #[cfg(feature = "test-support")]
11912 pub fn all_text_background_highlights(
11913 &mut self,
11914 cx: &mut ViewContext<Self>,
11915 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11916 let snapshot = self.snapshot(cx);
11917 let buffer = &snapshot.buffer_snapshot;
11918 let start = buffer.anchor_before(0);
11919 let end = buffer.anchor_after(buffer.len());
11920 let theme = cx.theme().colors();
11921 self.background_highlights_in_range(start..end, &snapshot, theme)
11922 }
11923
11924 #[cfg(feature = "test-support")]
11925 pub fn search_background_highlights(
11926 &mut self,
11927 cx: &mut ViewContext<Self>,
11928 ) -> Vec<Range<Point>> {
11929 let snapshot = self.buffer().read(cx).snapshot(cx);
11930
11931 let highlights = self
11932 .background_highlights
11933 .get(&TypeId::of::<items::BufferSearchHighlights>());
11934
11935 if let Some((_color, ranges)) = highlights {
11936 ranges
11937 .iter()
11938 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
11939 .collect_vec()
11940 } else {
11941 vec![]
11942 }
11943 }
11944
11945 fn document_highlights_for_position<'a>(
11946 &'a self,
11947 position: Anchor,
11948 buffer: &'a MultiBufferSnapshot,
11949 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
11950 let read_highlights = self
11951 .background_highlights
11952 .get(&TypeId::of::<DocumentHighlightRead>())
11953 .map(|h| &h.1);
11954 let write_highlights = self
11955 .background_highlights
11956 .get(&TypeId::of::<DocumentHighlightWrite>())
11957 .map(|h| &h.1);
11958 let left_position = position.bias_left(buffer);
11959 let right_position = position.bias_right(buffer);
11960 read_highlights
11961 .into_iter()
11962 .chain(write_highlights)
11963 .flat_map(move |ranges| {
11964 let start_ix = match ranges.binary_search_by(|probe| {
11965 let cmp = probe.end.cmp(&left_position, buffer);
11966 if cmp.is_ge() {
11967 Ordering::Greater
11968 } else {
11969 Ordering::Less
11970 }
11971 }) {
11972 Ok(i) | Err(i) => i,
11973 };
11974
11975 ranges[start_ix..]
11976 .iter()
11977 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
11978 })
11979 }
11980
11981 pub fn has_background_highlights<T: 'static>(&self) -> bool {
11982 self.background_highlights
11983 .get(&TypeId::of::<T>())
11984 .map_or(false, |(_, highlights)| !highlights.is_empty())
11985 }
11986
11987 pub fn background_highlights_in_range(
11988 &self,
11989 search_range: Range<Anchor>,
11990 display_snapshot: &DisplaySnapshot,
11991 theme: &ThemeColors,
11992 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
11993 let mut results = Vec::new();
11994 for (color_fetcher, ranges) in self.background_highlights.values() {
11995 let color = color_fetcher(theme);
11996 let start_ix = match ranges.binary_search_by(|probe| {
11997 let cmp = probe
11998 .end
11999 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12000 if cmp.is_gt() {
12001 Ordering::Greater
12002 } else {
12003 Ordering::Less
12004 }
12005 }) {
12006 Ok(i) | Err(i) => i,
12007 };
12008 for range in &ranges[start_ix..] {
12009 if range
12010 .start
12011 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12012 .is_ge()
12013 {
12014 break;
12015 }
12016
12017 let start = range.start.to_display_point(display_snapshot);
12018 let end = range.end.to_display_point(display_snapshot);
12019 results.push((start..end, color))
12020 }
12021 }
12022 results
12023 }
12024
12025 pub fn background_highlight_row_ranges<T: 'static>(
12026 &self,
12027 search_range: Range<Anchor>,
12028 display_snapshot: &DisplaySnapshot,
12029 count: usize,
12030 ) -> Vec<RangeInclusive<DisplayPoint>> {
12031 let mut results = Vec::new();
12032 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12033 return vec![];
12034 };
12035
12036 let start_ix = match ranges.binary_search_by(|probe| {
12037 let cmp = probe
12038 .end
12039 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12040 if cmp.is_gt() {
12041 Ordering::Greater
12042 } else {
12043 Ordering::Less
12044 }
12045 }) {
12046 Ok(i) | Err(i) => i,
12047 };
12048 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12049 if let (Some(start_display), Some(end_display)) = (start, end) {
12050 results.push(
12051 start_display.to_display_point(display_snapshot)
12052 ..=end_display.to_display_point(display_snapshot),
12053 );
12054 }
12055 };
12056 let mut start_row: Option<Point> = None;
12057 let mut end_row: Option<Point> = None;
12058 if ranges.len() > count {
12059 return Vec::new();
12060 }
12061 for range in &ranges[start_ix..] {
12062 if range
12063 .start
12064 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12065 .is_ge()
12066 {
12067 break;
12068 }
12069 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12070 if let Some(current_row) = &end_row {
12071 if end.row == current_row.row {
12072 continue;
12073 }
12074 }
12075 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12076 if start_row.is_none() {
12077 assert_eq!(end_row, None);
12078 start_row = Some(start);
12079 end_row = Some(end);
12080 continue;
12081 }
12082 if let Some(current_end) = end_row.as_mut() {
12083 if start.row > current_end.row + 1 {
12084 push_region(start_row, end_row);
12085 start_row = Some(start);
12086 end_row = Some(end);
12087 } else {
12088 // Merge two hunks.
12089 *current_end = end;
12090 }
12091 } else {
12092 unreachable!();
12093 }
12094 }
12095 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12096 push_region(start_row, end_row);
12097 results
12098 }
12099
12100 pub fn gutter_highlights_in_range(
12101 &self,
12102 search_range: Range<Anchor>,
12103 display_snapshot: &DisplaySnapshot,
12104 cx: &AppContext,
12105 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12106 let mut results = Vec::new();
12107 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12108 let color = color_fetcher(cx);
12109 let start_ix = match ranges.binary_search_by(|probe| {
12110 let cmp = probe
12111 .end
12112 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12113 if cmp.is_gt() {
12114 Ordering::Greater
12115 } else {
12116 Ordering::Less
12117 }
12118 }) {
12119 Ok(i) | Err(i) => i,
12120 };
12121 for range in &ranges[start_ix..] {
12122 if range
12123 .start
12124 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12125 .is_ge()
12126 {
12127 break;
12128 }
12129
12130 let start = range.start.to_display_point(display_snapshot);
12131 let end = range.end.to_display_point(display_snapshot);
12132 results.push((start..end, color))
12133 }
12134 }
12135 results
12136 }
12137
12138 /// Get the text ranges corresponding to the redaction query
12139 pub fn redacted_ranges(
12140 &self,
12141 search_range: Range<Anchor>,
12142 display_snapshot: &DisplaySnapshot,
12143 cx: &WindowContext,
12144 ) -> Vec<Range<DisplayPoint>> {
12145 display_snapshot
12146 .buffer_snapshot
12147 .redacted_ranges(search_range, |file| {
12148 if let Some(file) = file {
12149 file.is_private()
12150 && EditorSettings::get(
12151 Some(SettingsLocation {
12152 worktree_id: file.worktree_id(cx),
12153 path: file.path().as_ref(),
12154 }),
12155 cx,
12156 )
12157 .redact_private_values
12158 } else {
12159 false
12160 }
12161 })
12162 .map(|range| {
12163 range.start.to_display_point(display_snapshot)
12164 ..range.end.to_display_point(display_snapshot)
12165 })
12166 .collect()
12167 }
12168
12169 pub fn highlight_text<T: 'static>(
12170 &mut self,
12171 ranges: Vec<Range<Anchor>>,
12172 style: HighlightStyle,
12173 cx: &mut ViewContext<Self>,
12174 ) {
12175 self.display_map.update(cx, |map, _| {
12176 map.highlight_text(TypeId::of::<T>(), ranges, style)
12177 });
12178 cx.notify();
12179 }
12180
12181 pub(crate) fn highlight_inlays<T: 'static>(
12182 &mut self,
12183 highlights: Vec<InlayHighlight>,
12184 style: HighlightStyle,
12185 cx: &mut ViewContext<Self>,
12186 ) {
12187 self.display_map.update(cx, |map, _| {
12188 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12189 });
12190 cx.notify();
12191 }
12192
12193 pub fn text_highlights<'a, T: 'static>(
12194 &'a self,
12195 cx: &'a AppContext,
12196 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12197 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12198 }
12199
12200 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12201 let cleared = self
12202 .display_map
12203 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12204 if cleared {
12205 cx.notify();
12206 }
12207 }
12208
12209 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12210 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12211 && self.focus_handle.is_focused(cx)
12212 }
12213
12214 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12215 self.show_cursor_when_unfocused = is_enabled;
12216 cx.notify();
12217 }
12218
12219 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12220 self.project
12221 .as_ref()
12222 .map(|project| project.read(cx).lsp_store())
12223 }
12224
12225 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12226 cx.notify();
12227 }
12228
12229 fn on_buffer_event(
12230 &mut self,
12231 multibuffer: Model<MultiBuffer>,
12232 event: &multi_buffer::Event,
12233 cx: &mut ViewContext<Self>,
12234 ) {
12235 match event {
12236 multi_buffer::Event::Edited {
12237 singleton_buffer_edited,
12238 edited_buffer: buffer_edited,
12239 } => {
12240 self.scrollbar_marker_state.dirty = true;
12241 self.active_indent_guides_state.dirty = true;
12242 self.refresh_active_diagnostics(cx);
12243 self.refresh_code_actions(cx);
12244 if self.has_active_inline_completion() {
12245 self.update_visible_inline_completion(cx);
12246 }
12247 if let Some(buffer) = buffer_edited {
12248 let buffer_id = buffer.read(cx).remote_id();
12249 if !self.registered_buffers.contains_key(&buffer_id) {
12250 if let Some(lsp_store) = self.lsp_store(cx) {
12251 lsp_store.update(cx, |lsp_store, cx| {
12252 self.registered_buffers.insert(
12253 buffer_id,
12254 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12255 );
12256 })
12257 }
12258 }
12259 }
12260 cx.emit(EditorEvent::BufferEdited);
12261 cx.emit(SearchEvent::MatchesInvalidated);
12262 if *singleton_buffer_edited {
12263 if let Some(project) = &self.project {
12264 let project = project.read(cx);
12265 #[allow(clippy::mutable_key_type)]
12266 let languages_affected = multibuffer
12267 .read(cx)
12268 .all_buffers()
12269 .into_iter()
12270 .filter_map(|buffer| {
12271 let buffer = buffer.read(cx);
12272 let language = buffer.language()?;
12273 if project.is_local()
12274 && project
12275 .language_servers_for_local_buffer(buffer, cx)
12276 .count()
12277 == 0
12278 {
12279 None
12280 } else {
12281 Some(language)
12282 }
12283 })
12284 .cloned()
12285 .collect::<HashSet<_>>();
12286 if !languages_affected.is_empty() {
12287 self.refresh_inlay_hints(
12288 InlayHintRefreshReason::BufferEdited(languages_affected),
12289 cx,
12290 );
12291 }
12292 }
12293 }
12294
12295 let Some(project) = &self.project else { return };
12296 let (telemetry, is_via_ssh) = {
12297 let project = project.read(cx);
12298 let telemetry = project.client().telemetry().clone();
12299 let is_via_ssh = project.is_via_ssh();
12300 (telemetry, is_via_ssh)
12301 };
12302 refresh_linked_ranges(self, cx);
12303 telemetry.log_edit_event("editor", is_via_ssh);
12304 }
12305 multi_buffer::Event::ExcerptsAdded {
12306 buffer,
12307 predecessor,
12308 excerpts,
12309 } => {
12310 self.tasks_update_task = Some(self.refresh_runnables(cx));
12311 let buffer_id = buffer.read(cx).remote_id();
12312 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12313 if let Some(project) = &self.project {
12314 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12315 }
12316 }
12317 cx.emit(EditorEvent::ExcerptsAdded {
12318 buffer: buffer.clone(),
12319 predecessor: *predecessor,
12320 excerpts: excerpts.clone(),
12321 });
12322 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12323 }
12324 multi_buffer::Event::ExcerptsRemoved { ids } => {
12325 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12326 let buffer = self.buffer.read(cx);
12327 self.registered_buffers
12328 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12329 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12330 }
12331 multi_buffer::Event::ExcerptsEdited { ids } => {
12332 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12333 }
12334 multi_buffer::Event::ExcerptsExpanded { ids } => {
12335 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12336 }
12337 multi_buffer::Event::Reparsed(buffer_id) => {
12338 self.tasks_update_task = Some(self.refresh_runnables(cx));
12339
12340 cx.emit(EditorEvent::Reparsed(*buffer_id));
12341 }
12342 multi_buffer::Event::LanguageChanged(buffer_id) => {
12343 linked_editing_ranges::refresh_linked_ranges(self, cx);
12344 cx.emit(EditorEvent::Reparsed(*buffer_id));
12345 cx.notify();
12346 }
12347 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12348 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12349 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12350 cx.emit(EditorEvent::TitleChanged)
12351 }
12352 // multi_buffer::Event::DiffBaseChanged => {
12353 // self.scrollbar_marker_state.dirty = true;
12354 // cx.emit(EditorEvent::DiffBaseChanged);
12355 // cx.notify();
12356 // }
12357 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12358 multi_buffer::Event::DiagnosticsUpdated => {
12359 self.refresh_active_diagnostics(cx);
12360 self.scrollbar_marker_state.dirty = true;
12361 cx.notify();
12362 }
12363 _ => {}
12364 };
12365 }
12366
12367 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12368 cx.notify();
12369 }
12370
12371 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12372 self.tasks_update_task = Some(self.refresh_runnables(cx));
12373 self.refresh_inline_completion(true, false, cx);
12374 self.refresh_inlay_hints(
12375 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12376 self.selections.newest_anchor().head(),
12377 &self.buffer.read(cx).snapshot(cx),
12378 cx,
12379 )),
12380 cx,
12381 );
12382
12383 let old_cursor_shape = self.cursor_shape;
12384
12385 {
12386 let editor_settings = EditorSettings::get_global(cx);
12387 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12388 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12389 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12390 }
12391
12392 if old_cursor_shape != self.cursor_shape {
12393 cx.emit(EditorEvent::CursorShapeChanged);
12394 }
12395
12396 let project_settings = ProjectSettings::get_global(cx);
12397 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12398
12399 if self.mode == EditorMode::Full {
12400 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12401 if self.git_blame_inline_enabled != inline_blame_enabled {
12402 self.toggle_git_blame_inline_internal(false, cx);
12403 }
12404 }
12405
12406 cx.notify();
12407 }
12408
12409 pub fn set_searchable(&mut self, searchable: bool) {
12410 self.searchable = searchable;
12411 }
12412
12413 pub fn searchable(&self) -> bool {
12414 self.searchable
12415 }
12416
12417 fn open_proposed_changes_editor(
12418 &mut self,
12419 _: &OpenProposedChangesEditor,
12420 cx: &mut ViewContext<Self>,
12421 ) {
12422 let Some(workspace) = self.workspace() else {
12423 cx.propagate();
12424 return;
12425 };
12426
12427 let selections = self.selections.all::<usize>(cx);
12428 let multi_buffer = self.buffer.read(cx);
12429 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12430 let mut new_selections_by_buffer = HashMap::default();
12431 for selection in selections {
12432 for (excerpt, range) in
12433 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12434 {
12435 let mut range = range.to_point(excerpt.buffer());
12436 range.start.column = 0;
12437 range.end.column = excerpt.buffer().line_len(range.end.row);
12438 new_selections_by_buffer
12439 .entry(multi_buffer.buffer(excerpt.buffer_id()).unwrap())
12440 .or_insert(Vec::new())
12441 .push(range)
12442 }
12443 }
12444
12445 let proposed_changes_buffers = new_selections_by_buffer
12446 .into_iter()
12447 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12448 .collect::<Vec<_>>();
12449 let proposed_changes_editor = cx.new_view(|cx| {
12450 ProposedChangesEditor::new(
12451 "Proposed changes",
12452 proposed_changes_buffers,
12453 self.project.clone(),
12454 cx,
12455 )
12456 });
12457
12458 cx.window_context().defer(move |cx| {
12459 workspace.update(cx, |workspace, cx| {
12460 workspace.active_pane().update(cx, |pane, cx| {
12461 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12462 });
12463 });
12464 });
12465 }
12466
12467 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12468 self.open_excerpts_common(None, true, cx)
12469 }
12470
12471 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12472 self.open_excerpts_common(None, false, cx)
12473 }
12474
12475 fn open_excerpts_common(
12476 &mut self,
12477 jump_data: Option<JumpData>,
12478 split: bool,
12479 cx: &mut ViewContext<Self>,
12480 ) {
12481 let Some(workspace) = self.workspace() else {
12482 cx.propagate();
12483 return;
12484 };
12485
12486 if self.buffer.read(cx).is_singleton() {
12487 cx.propagate();
12488 return;
12489 }
12490
12491 let mut new_selections_by_buffer = HashMap::default();
12492 match &jump_data {
12493 Some(JumpData::MultiBufferPoint {
12494 excerpt_id,
12495 position,
12496 anchor,
12497 line_offset_from_top,
12498 }) => {
12499 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12500 if let Some(buffer) = multi_buffer_snapshot
12501 .buffer_id_for_excerpt(*excerpt_id)
12502 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12503 {
12504 let buffer_snapshot = buffer.read(cx).snapshot();
12505 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12506 language::ToPoint::to_point(anchor, &buffer_snapshot)
12507 } else {
12508 buffer_snapshot.clip_point(*position, Bias::Left)
12509 };
12510 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12511 new_selections_by_buffer.insert(
12512 buffer,
12513 (
12514 vec![jump_to_offset..jump_to_offset],
12515 Some(*line_offset_from_top),
12516 ),
12517 );
12518 }
12519 }
12520 Some(JumpData::MultiBufferRow {
12521 row,
12522 line_offset_from_top,
12523 }) => {
12524 let point = MultiBufferPoint::new(row.0, 0);
12525 if let Some((buffer, buffer_point, _)) =
12526 self.buffer.read(cx).point_to_buffer_point(point, cx)
12527 {
12528 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12529 new_selections_by_buffer
12530 .entry(buffer)
12531 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12532 .0
12533 .push(buffer_offset..buffer_offset)
12534 }
12535 }
12536 None => {
12537 let selections = self.selections.all::<usize>(cx);
12538 let multi_buffer = self.buffer.read(cx);
12539 for selection in selections {
12540 for (excerpt, mut range) in multi_buffer
12541 .snapshot(cx)
12542 .range_to_buffer_ranges(selection.range())
12543 {
12544 // When editing branch buffers, jump to the corresponding location
12545 // in their base buffer.
12546 let mut buffer_handle = multi_buffer.buffer(excerpt.buffer_id()).unwrap();
12547 let buffer = buffer_handle.read(cx);
12548 if let Some(base_buffer) = buffer.base_buffer() {
12549 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12550 buffer_handle = base_buffer;
12551 }
12552
12553 if selection.reversed {
12554 mem::swap(&mut range.start, &mut range.end);
12555 }
12556 new_selections_by_buffer
12557 .entry(buffer_handle)
12558 .or_insert((Vec::new(), None))
12559 .0
12560 .push(range)
12561 }
12562 }
12563 }
12564 }
12565
12566 if new_selections_by_buffer.is_empty() {
12567 return;
12568 }
12569
12570 // We defer the pane interaction because we ourselves are a workspace item
12571 // and activating a new item causes the pane to call a method on us reentrantly,
12572 // which panics if we're on the stack.
12573 cx.window_context().defer(move |cx| {
12574 workspace.update(cx, |workspace, cx| {
12575 let pane = if split {
12576 workspace.adjacent_pane(cx)
12577 } else {
12578 workspace.active_pane().clone()
12579 };
12580
12581 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12582 let editor = buffer
12583 .read(cx)
12584 .file()
12585 .is_none()
12586 .then(|| {
12587 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12588 // so `workspace.open_project_item` will never find them, always opening a new editor.
12589 // Instead, we try to activate the existing editor in the pane first.
12590 let (editor, pane_item_index) =
12591 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12592 let editor = item.downcast::<Editor>()?;
12593 let singleton_buffer =
12594 editor.read(cx).buffer().read(cx).as_singleton()?;
12595 if singleton_buffer == buffer {
12596 Some((editor, i))
12597 } else {
12598 None
12599 }
12600 })?;
12601 pane.update(cx, |pane, cx| {
12602 pane.activate_item(pane_item_index, true, true, cx)
12603 });
12604 Some(editor)
12605 })
12606 .flatten()
12607 .unwrap_or_else(|| {
12608 workspace.open_project_item::<Self>(
12609 pane.clone(),
12610 buffer,
12611 true,
12612 true,
12613 cx,
12614 )
12615 });
12616
12617 editor.update(cx, |editor, cx| {
12618 let autoscroll = match scroll_offset {
12619 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12620 None => Autoscroll::newest(),
12621 };
12622 let nav_history = editor.nav_history.take();
12623 editor.change_selections(Some(autoscroll), cx, |s| {
12624 s.select_ranges(ranges);
12625 });
12626 editor.nav_history = nav_history;
12627 });
12628 }
12629 })
12630 });
12631 }
12632
12633 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12634 let snapshot = self.buffer.read(cx).read(cx);
12635 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12636 Some(
12637 ranges
12638 .iter()
12639 .map(move |range| {
12640 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12641 })
12642 .collect(),
12643 )
12644 }
12645
12646 fn selection_replacement_ranges(
12647 &self,
12648 range: Range<OffsetUtf16>,
12649 cx: &mut AppContext,
12650 ) -> Vec<Range<OffsetUtf16>> {
12651 let selections = self.selections.all::<OffsetUtf16>(cx);
12652 let newest_selection = selections
12653 .iter()
12654 .max_by_key(|selection| selection.id)
12655 .unwrap();
12656 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12657 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12658 let snapshot = self.buffer.read(cx).read(cx);
12659 selections
12660 .into_iter()
12661 .map(|mut selection| {
12662 selection.start.0 =
12663 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12664 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12665 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12666 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12667 })
12668 .collect()
12669 }
12670
12671 fn report_editor_event(
12672 &self,
12673 event_type: &'static str,
12674 file_extension: Option<String>,
12675 cx: &AppContext,
12676 ) {
12677 if cfg!(any(test, feature = "test-support")) {
12678 return;
12679 }
12680
12681 let Some(project) = &self.project else { return };
12682
12683 // If None, we are in a file without an extension
12684 let file = self
12685 .buffer
12686 .read(cx)
12687 .as_singleton()
12688 .and_then(|b| b.read(cx).file());
12689 let file_extension = file_extension.or(file
12690 .as_ref()
12691 .and_then(|file| Path::new(file.file_name(cx)).extension())
12692 .and_then(|e| e.to_str())
12693 .map(|a| a.to_string()));
12694
12695 let vim_mode = cx
12696 .global::<SettingsStore>()
12697 .raw_user_settings()
12698 .get("vim_mode")
12699 == Some(&serde_json::Value::Bool(true));
12700
12701 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12702 == language::language_settings::InlineCompletionProvider::Copilot;
12703 let copilot_enabled_for_language = self
12704 .buffer
12705 .read(cx)
12706 .settings_at(0, cx)
12707 .show_inline_completions;
12708
12709 let project = project.read(cx);
12710 telemetry::event!(
12711 event_type,
12712 file_extension,
12713 vim_mode,
12714 copilot_enabled,
12715 copilot_enabled_for_language,
12716 is_via_ssh = project.is_via_ssh(),
12717 );
12718 }
12719
12720 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12721 /// with each line being an array of {text, highlight} objects.
12722 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12723 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12724 return;
12725 };
12726
12727 #[derive(Serialize)]
12728 struct Chunk<'a> {
12729 text: String,
12730 highlight: Option<&'a str>,
12731 }
12732
12733 let snapshot = buffer.read(cx).snapshot();
12734 let range = self
12735 .selected_text_range(false, cx)
12736 .and_then(|selection| {
12737 if selection.range.is_empty() {
12738 None
12739 } else {
12740 Some(selection.range)
12741 }
12742 })
12743 .unwrap_or_else(|| 0..snapshot.len());
12744
12745 let chunks = snapshot.chunks(range, true);
12746 let mut lines = Vec::new();
12747 let mut line: VecDeque<Chunk> = VecDeque::new();
12748
12749 let Some(style) = self.style.as_ref() else {
12750 return;
12751 };
12752
12753 for chunk in chunks {
12754 let highlight = chunk
12755 .syntax_highlight_id
12756 .and_then(|id| id.name(&style.syntax));
12757 let mut chunk_lines = chunk.text.split('\n').peekable();
12758 while let Some(text) = chunk_lines.next() {
12759 let mut merged_with_last_token = false;
12760 if let Some(last_token) = line.back_mut() {
12761 if last_token.highlight == highlight {
12762 last_token.text.push_str(text);
12763 merged_with_last_token = true;
12764 }
12765 }
12766
12767 if !merged_with_last_token {
12768 line.push_back(Chunk {
12769 text: text.into(),
12770 highlight,
12771 });
12772 }
12773
12774 if chunk_lines.peek().is_some() {
12775 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12776 line.pop_front();
12777 }
12778 if line.len() > 1 && line.back().unwrap().text.is_empty() {
12779 line.pop_back();
12780 }
12781
12782 lines.push(mem::take(&mut line));
12783 }
12784 }
12785 }
12786
12787 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
12788 return;
12789 };
12790 cx.write_to_clipboard(ClipboardItem::new_string(lines));
12791 }
12792
12793 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
12794 self.request_autoscroll(Autoscroll::newest(), cx);
12795 let position = self.selections.newest_display(cx).start;
12796 mouse_context_menu::deploy_context_menu(self, None, position, cx);
12797 }
12798
12799 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
12800 &self.inlay_hint_cache
12801 }
12802
12803 pub fn replay_insert_event(
12804 &mut self,
12805 text: &str,
12806 relative_utf16_range: Option<Range<isize>>,
12807 cx: &mut ViewContext<Self>,
12808 ) {
12809 if !self.input_enabled {
12810 cx.emit(EditorEvent::InputIgnored { text: text.into() });
12811 return;
12812 }
12813 if let Some(relative_utf16_range) = relative_utf16_range {
12814 let selections = self.selections.all::<OffsetUtf16>(cx);
12815 self.change_selections(None, cx, |s| {
12816 let new_ranges = selections.into_iter().map(|range| {
12817 let start = OffsetUtf16(
12818 range
12819 .head()
12820 .0
12821 .saturating_add_signed(relative_utf16_range.start),
12822 );
12823 let end = OffsetUtf16(
12824 range
12825 .head()
12826 .0
12827 .saturating_add_signed(relative_utf16_range.end),
12828 );
12829 start..end
12830 });
12831 s.select_ranges(new_ranges);
12832 });
12833 }
12834
12835 self.handle_input(text, cx);
12836 }
12837
12838 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
12839 let Some(provider) = self.semantics_provider.as_ref() else {
12840 return false;
12841 };
12842
12843 let mut supports = false;
12844 self.buffer().read(cx).for_each_buffer(|buffer| {
12845 supports |= provider.supports_inlay_hints(buffer, cx);
12846 });
12847 supports
12848 }
12849
12850 pub fn focus(&self, cx: &mut WindowContext) {
12851 cx.focus(&self.focus_handle)
12852 }
12853
12854 pub fn is_focused(&self, cx: &WindowContext) -> bool {
12855 self.focus_handle.is_focused(cx)
12856 }
12857
12858 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
12859 cx.emit(EditorEvent::Focused);
12860
12861 if let Some(descendant) = self
12862 .last_focused_descendant
12863 .take()
12864 .and_then(|descendant| descendant.upgrade())
12865 {
12866 cx.focus(&descendant);
12867 } else {
12868 if let Some(blame) = self.blame.as_ref() {
12869 blame.update(cx, GitBlame::focus)
12870 }
12871
12872 self.blink_manager.update(cx, BlinkManager::enable);
12873 self.show_cursor_names(cx);
12874 self.buffer.update(cx, |buffer, cx| {
12875 buffer.finalize_last_transaction(cx);
12876 if self.leader_peer_id.is_none() {
12877 buffer.set_active_selections(
12878 &self.selections.disjoint_anchors(),
12879 self.selections.line_mode,
12880 self.cursor_shape,
12881 cx,
12882 );
12883 }
12884 });
12885 }
12886 }
12887
12888 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
12889 cx.emit(EditorEvent::FocusedIn)
12890 }
12891
12892 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
12893 if event.blurred != self.focus_handle {
12894 self.last_focused_descendant = Some(event.blurred);
12895 }
12896 }
12897
12898 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
12899 self.blink_manager.update(cx, BlinkManager::disable);
12900 self.buffer
12901 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
12902
12903 if let Some(blame) = self.blame.as_ref() {
12904 blame.update(cx, GitBlame::blur)
12905 }
12906 if !self.hover_state.focused(cx) {
12907 hide_hover(self, cx);
12908 }
12909
12910 self.hide_context_menu(cx);
12911 cx.emit(EditorEvent::Blurred);
12912 cx.notify();
12913 }
12914
12915 pub fn register_action<A: Action>(
12916 &mut self,
12917 listener: impl Fn(&A, &mut WindowContext) + 'static,
12918 ) -> Subscription {
12919 let id = self.next_editor_action_id.post_inc();
12920 let listener = Arc::new(listener);
12921 self.editor_actions.borrow_mut().insert(
12922 id,
12923 Box::new(move |cx| {
12924 let cx = cx.window_context();
12925 let listener = listener.clone();
12926 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
12927 let action = action.downcast_ref().unwrap();
12928 if phase == DispatchPhase::Bubble {
12929 listener(action, cx)
12930 }
12931 })
12932 }),
12933 );
12934
12935 let editor_actions = self.editor_actions.clone();
12936 Subscription::new(move || {
12937 editor_actions.borrow_mut().remove(&id);
12938 })
12939 }
12940
12941 pub fn file_header_size(&self) -> u32 {
12942 FILE_HEADER_HEIGHT
12943 }
12944
12945 pub fn revert(
12946 &mut self,
12947 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
12948 cx: &mut ViewContext<Self>,
12949 ) {
12950 self.buffer().update(cx, |multi_buffer, cx| {
12951 for (buffer_id, changes) in revert_changes {
12952 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
12953 buffer.update(cx, |buffer, cx| {
12954 buffer.edit(
12955 changes.into_iter().map(|(range, text)| {
12956 (range, text.to_string().map(Arc::<str>::from))
12957 }),
12958 None,
12959 cx,
12960 );
12961 });
12962 }
12963 }
12964 });
12965 self.change_selections(None, cx, |selections| selections.refresh());
12966 }
12967
12968 pub fn to_pixel_point(
12969 &mut self,
12970 source: multi_buffer::Anchor,
12971 editor_snapshot: &EditorSnapshot,
12972 cx: &mut ViewContext<Self>,
12973 ) -> Option<gpui::Point<Pixels>> {
12974 let source_point = source.to_display_point(editor_snapshot);
12975 self.display_to_pixel_point(source_point, editor_snapshot, cx)
12976 }
12977
12978 pub fn display_to_pixel_point(
12979 &self,
12980 source: DisplayPoint,
12981 editor_snapshot: &EditorSnapshot,
12982 cx: &WindowContext,
12983 ) -> Option<gpui::Point<Pixels>> {
12984 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
12985 let text_layout_details = self.text_layout_details(cx);
12986 let scroll_top = text_layout_details
12987 .scroll_anchor
12988 .scroll_position(editor_snapshot)
12989 .y;
12990
12991 if source.row().as_f32() < scroll_top.floor() {
12992 return None;
12993 }
12994 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
12995 let source_y = line_height * (source.row().as_f32() - scroll_top);
12996 Some(gpui::Point::new(source_x, source_y))
12997 }
12998
12999 pub fn has_active_completions_menu(&self) -> bool {
13000 self.context_menu.borrow().as_ref().map_or(false, |menu| {
13001 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
13002 })
13003 }
13004
13005 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13006 self.addons
13007 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13008 }
13009
13010 pub fn unregister_addon<T: Addon>(&mut self) {
13011 self.addons.remove(&std::any::TypeId::of::<T>());
13012 }
13013
13014 pub fn addon<T: Addon>(&self) -> Option<&T> {
13015 let type_id = std::any::TypeId::of::<T>();
13016 self.addons
13017 .get(&type_id)
13018 .and_then(|item| item.to_any().downcast_ref::<T>())
13019 }
13020
13021 pub fn add_change_set(
13022 &mut self,
13023 change_set: Model<BufferChangeSet>,
13024 cx: &mut ViewContext<Self>,
13025 ) {
13026 self.diff_map.add_change_set(change_set, cx);
13027 }
13028
13029 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13030 let text_layout_details = self.text_layout_details(cx);
13031 let style = &text_layout_details.editor_style;
13032 let font_id = cx.text_system().resolve_font(&style.text.font());
13033 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13034 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13035
13036 let em_width = cx
13037 .text_system()
13038 .typographic_bounds(font_id, font_size, 'm')
13039 .unwrap()
13040 .size
13041 .width;
13042
13043 gpui::Point::new(em_width, line_height)
13044 }
13045}
13046
13047fn get_unstaged_changes_for_buffers(
13048 project: &Model<Project>,
13049 buffers: impl IntoIterator<Item = Model<Buffer>>,
13050 cx: &mut ViewContext<Editor>,
13051) {
13052 let mut tasks = Vec::new();
13053 project.update(cx, |project, cx| {
13054 for buffer in buffers {
13055 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13056 }
13057 });
13058 cx.spawn(|this, mut cx| async move {
13059 let change_sets = futures::future::join_all(tasks).await;
13060 this.update(&mut cx, |this, cx| {
13061 for change_set in change_sets {
13062 if let Some(change_set) = change_set.log_err() {
13063 this.diff_map.add_change_set(change_set, cx);
13064 }
13065 }
13066 })
13067 .ok();
13068 })
13069 .detach();
13070}
13071
13072fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13073 let tab_size = tab_size.get() as usize;
13074 let mut width = offset;
13075
13076 for ch in text.chars() {
13077 width += if ch == '\t' {
13078 tab_size - (width % tab_size)
13079 } else {
13080 1
13081 };
13082 }
13083
13084 width - offset
13085}
13086
13087#[cfg(test)]
13088mod tests {
13089 use super::*;
13090
13091 #[test]
13092 fn test_string_size_with_expanded_tabs() {
13093 let nz = |val| NonZeroU32::new(val).unwrap();
13094 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13095 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13096 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13097 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13098 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13099 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13100 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13101 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13102 }
13103}
13104
13105/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13106struct WordBreakingTokenizer<'a> {
13107 input: &'a str,
13108}
13109
13110impl<'a> WordBreakingTokenizer<'a> {
13111 fn new(input: &'a str) -> Self {
13112 Self { input }
13113 }
13114}
13115
13116fn is_char_ideographic(ch: char) -> bool {
13117 use unicode_script::Script::*;
13118 use unicode_script::UnicodeScript;
13119 matches!(ch.script(), Han | Tangut | Yi)
13120}
13121
13122fn is_grapheme_ideographic(text: &str) -> bool {
13123 text.chars().any(is_char_ideographic)
13124}
13125
13126fn is_grapheme_whitespace(text: &str) -> bool {
13127 text.chars().any(|x| x.is_whitespace())
13128}
13129
13130fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13131 text.chars().next().map_or(false, |ch| {
13132 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13133 })
13134}
13135
13136#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13137struct WordBreakToken<'a> {
13138 token: &'a str,
13139 grapheme_len: usize,
13140 is_whitespace: bool,
13141}
13142
13143impl<'a> Iterator for WordBreakingTokenizer<'a> {
13144 /// Yields a span, the count of graphemes in the token, and whether it was
13145 /// whitespace. Note that it also breaks at word boundaries.
13146 type Item = WordBreakToken<'a>;
13147
13148 fn next(&mut self) -> Option<Self::Item> {
13149 use unicode_segmentation::UnicodeSegmentation;
13150 if self.input.is_empty() {
13151 return None;
13152 }
13153
13154 let mut iter = self.input.graphemes(true).peekable();
13155 let mut offset = 0;
13156 let mut graphemes = 0;
13157 if let Some(first_grapheme) = iter.next() {
13158 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13159 offset += first_grapheme.len();
13160 graphemes += 1;
13161 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13162 if let Some(grapheme) = iter.peek().copied() {
13163 if should_stay_with_preceding_ideograph(grapheme) {
13164 offset += grapheme.len();
13165 graphemes += 1;
13166 }
13167 }
13168 } else {
13169 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13170 let mut next_word_bound = words.peek().copied();
13171 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13172 next_word_bound = words.next();
13173 }
13174 while let Some(grapheme) = iter.peek().copied() {
13175 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13176 break;
13177 };
13178 if is_grapheme_whitespace(grapheme) != is_whitespace {
13179 break;
13180 };
13181 offset += grapheme.len();
13182 graphemes += 1;
13183 iter.next();
13184 }
13185 }
13186 let token = &self.input[..offset];
13187 self.input = &self.input[offset..];
13188 if is_whitespace {
13189 Some(WordBreakToken {
13190 token: " ",
13191 grapheme_len: 1,
13192 is_whitespace: true,
13193 })
13194 } else {
13195 Some(WordBreakToken {
13196 token,
13197 grapheme_len: graphemes,
13198 is_whitespace: false,
13199 })
13200 }
13201 } else {
13202 None
13203 }
13204 }
13205}
13206
13207#[test]
13208fn test_word_breaking_tokenizer() {
13209 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13210 ("", &[]),
13211 (" ", &[(" ", 1, true)]),
13212 ("Ʒ", &[("Ʒ", 1, false)]),
13213 ("Ǽ", &[("Ǽ", 1, false)]),
13214 ("⋑", &[("⋑", 1, false)]),
13215 ("⋑⋑", &[("⋑⋑", 2, false)]),
13216 (
13217 "原理，进而",
13218 &[
13219 ("原", 1, false),
13220 ("理，", 2, false),
13221 ("进", 1, false),
13222 ("而", 1, false),
13223 ],
13224 ),
13225 (
13226 "hello world",
13227 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13228 ),
13229 (
13230 "hello, world",
13231 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13232 ),
13233 (
13234 " hello world",
13235 &[
13236 (" ", 1, true),
13237 ("hello", 5, false),
13238 (" ", 1, true),
13239 ("world", 5, false),
13240 ],
13241 ),
13242 (
13243 "这是什么 \n 钢笔",
13244 &[
13245 ("这", 1, false),
13246 ("是", 1, false),
13247 ("什", 1, false),
13248 ("么", 1, false),
13249 (" ", 1, true),
13250 ("钢", 1, false),
13251 ("笔", 1, false),
13252 ],
13253 ),
13254 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13255 ];
13256
13257 for (input, result) in tests {
13258 assert_eq!(
13259 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13260 result
13261 .iter()
13262 .copied()
13263 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13264 token,
13265 grapheme_len,
13266 is_whitespace,
13267 })
13268 .collect::<Vec<_>>()
13269 );
13270 }
13271}
13272
13273fn wrap_with_prefix(
13274 line_prefix: String,
13275 unwrapped_text: String,
13276 wrap_column: usize,
13277 tab_size: NonZeroU32,
13278) -> String {
13279 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13280 let mut wrapped_text = String::new();
13281 let mut current_line = line_prefix.clone();
13282
13283 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13284 let mut current_line_len = line_prefix_len;
13285 for WordBreakToken {
13286 token,
13287 grapheme_len,
13288 is_whitespace,
13289 } in tokenizer
13290 {
13291 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13292 wrapped_text.push_str(current_line.trim_end());
13293 wrapped_text.push('\n');
13294 current_line.truncate(line_prefix.len());
13295 current_line_len = line_prefix_len;
13296 if !is_whitespace {
13297 current_line.push_str(token);
13298 current_line_len += grapheme_len;
13299 }
13300 } else if !is_whitespace {
13301 current_line.push_str(token);
13302 current_line_len += grapheme_len;
13303 } else if current_line_len != line_prefix_len {
13304 current_line.push(' ');
13305 current_line_len += 1;
13306 }
13307 }
13308
13309 if !current_line.is_empty() {
13310 wrapped_text.push_str(¤t_line);
13311 }
13312 wrapped_text
13313}
13314
13315#[test]
13316fn test_wrap_with_prefix() {
13317 assert_eq!(
13318 wrap_with_prefix(
13319 "# ".to_string(),
13320 "abcdefg".to_string(),
13321 4,
13322 NonZeroU32::new(4).unwrap()
13323 ),
13324 "# abcdefg"
13325 );
13326 assert_eq!(
13327 wrap_with_prefix(
13328 "".to_string(),
13329 "\thello world".to_string(),
13330 8,
13331 NonZeroU32::new(4).unwrap()
13332 ),
13333 "hello\nworld"
13334 );
13335 assert_eq!(
13336 wrap_with_prefix(
13337 "// ".to_string(),
13338 "xx \nyy zz aa bb cc".to_string(),
13339 12,
13340 NonZeroU32::new(4).unwrap()
13341 ),
13342 "// xx yy zz\n// aa bb cc"
13343 );
13344 assert_eq!(
13345 wrap_with_prefix(
13346 String::new(),
13347 "这是什么 \n 钢笔".to_string(),
13348 3,
13349 NonZeroU32::new(4).unwrap()
13350 ),
13351 "这是什\n么 钢\n笔"
13352 );
13353}
13354
13355fn hunks_for_selections(
13356 snapshot: &EditorSnapshot,
13357 selections: &[Selection<Point>],
13358) -> Vec<MultiBufferDiffHunk> {
13359 hunks_for_ranges(
13360 selections.iter().map(|selection| selection.range()),
13361 snapshot,
13362 )
13363}
13364
13365pub fn hunks_for_ranges(
13366 ranges: impl Iterator<Item = Range<Point>>,
13367 snapshot: &EditorSnapshot,
13368) -> Vec<MultiBufferDiffHunk> {
13369 let mut hunks = Vec::new();
13370 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13371 HashMap::default();
13372 for query_range in ranges {
13373 let query_rows =
13374 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13375 for hunk in snapshot.diff_map.diff_hunks_in_range(
13376 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13377 &snapshot.buffer_snapshot,
13378 ) {
13379 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13380 // when the caret is just above or just below the deleted hunk.
13381 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13382 let related_to_selection = if allow_adjacent {
13383 hunk.row_range.overlaps(&query_rows)
13384 || hunk.row_range.start == query_rows.end
13385 || hunk.row_range.end == query_rows.start
13386 } else {
13387 hunk.row_range.overlaps(&query_rows)
13388 };
13389 if related_to_selection {
13390 if !processed_buffer_rows
13391 .entry(hunk.buffer_id)
13392 .or_default()
13393 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13394 {
13395 continue;
13396 }
13397 hunks.push(hunk);
13398 }
13399 }
13400 }
13401
13402 hunks
13403}
13404
13405pub trait CollaborationHub {
13406 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13407 fn user_participant_indices<'a>(
13408 &self,
13409 cx: &'a AppContext,
13410 ) -> &'a HashMap<u64, ParticipantIndex>;
13411 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13412}
13413
13414impl CollaborationHub for Model<Project> {
13415 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13416 self.read(cx).collaborators()
13417 }
13418
13419 fn user_participant_indices<'a>(
13420 &self,
13421 cx: &'a AppContext,
13422 ) -> &'a HashMap<u64, ParticipantIndex> {
13423 self.read(cx).user_store().read(cx).participant_indices()
13424 }
13425
13426 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13427 let this = self.read(cx);
13428 let user_ids = this.collaborators().values().map(|c| c.user_id);
13429 this.user_store().read_with(cx, |user_store, cx| {
13430 user_store.participant_names(user_ids, cx)
13431 })
13432 }
13433}
13434
13435pub trait SemanticsProvider {
13436 fn hover(
13437 &self,
13438 buffer: &Model<Buffer>,
13439 position: text::Anchor,
13440 cx: &mut AppContext,
13441 ) -> Option<Task<Vec<project::Hover>>>;
13442
13443 fn inlay_hints(
13444 &self,
13445 buffer_handle: Model<Buffer>,
13446 range: Range<text::Anchor>,
13447 cx: &mut AppContext,
13448 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13449
13450 fn resolve_inlay_hint(
13451 &self,
13452 hint: InlayHint,
13453 buffer_handle: Model<Buffer>,
13454 server_id: LanguageServerId,
13455 cx: &mut AppContext,
13456 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13457
13458 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13459
13460 fn document_highlights(
13461 &self,
13462 buffer: &Model<Buffer>,
13463 position: text::Anchor,
13464 cx: &mut AppContext,
13465 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13466
13467 fn definitions(
13468 &self,
13469 buffer: &Model<Buffer>,
13470 position: text::Anchor,
13471 kind: GotoDefinitionKind,
13472 cx: &mut AppContext,
13473 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13474
13475 fn range_for_rename(
13476 &self,
13477 buffer: &Model<Buffer>,
13478 position: text::Anchor,
13479 cx: &mut AppContext,
13480 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13481
13482 fn perform_rename(
13483 &self,
13484 buffer: &Model<Buffer>,
13485 position: text::Anchor,
13486 new_name: String,
13487 cx: &mut AppContext,
13488 ) -> Option<Task<Result<ProjectTransaction>>>;
13489}
13490
13491pub trait CompletionProvider {
13492 fn completions(
13493 &self,
13494 buffer: &Model<Buffer>,
13495 buffer_position: text::Anchor,
13496 trigger: CompletionContext,
13497 cx: &mut ViewContext<Editor>,
13498 ) -> Task<Result<Vec<Completion>>>;
13499
13500 fn resolve_completions(
13501 &self,
13502 buffer: Model<Buffer>,
13503 completion_indices: Vec<usize>,
13504 completions: Rc<RefCell<Box<[Completion]>>>,
13505 cx: &mut ViewContext<Editor>,
13506 ) -> Task<Result<bool>>;
13507
13508 fn apply_additional_edits_for_completion(
13509 &self,
13510 _buffer: Model<Buffer>,
13511 _completions: Rc<RefCell<Box<[Completion]>>>,
13512 _completion_index: usize,
13513 _push_to_history: bool,
13514 _cx: &mut ViewContext<Editor>,
13515 ) -> Task<Result<Option<language::Transaction>>> {
13516 Task::ready(Ok(None))
13517 }
13518
13519 fn is_completion_trigger(
13520 &self,
13521 buffer: &Model<Buffer>,
13522 position: language::Anchor,
13523 text: &str,
13524 trigger_in_words: bool,
13525 cx: &mut ViewContext<Editor>,
13526 ) -> bool;
13527
13528 fn sort_completions(&self) -> bool {
13529 true
13530 }
13531}
13532
13533pub trait CodeActionProvider {
13534 fn code_actions(
13535 &self,
13536 buffer: &Model<Buffer>,
13537 range: Range<text::Anchor>,
13538 cx: &mut WindowContext,
13539 ) -> Task<Result<Vec<CodeAction>>>;
13540
13541 fn apply_code_action(
13542 &self,
13543 buffer_handle: Model<Buffer>,
13544 action: CodeAction,
13545 excerpt_id: ExcerptId,
13546 push_to_history: bool,
13547 cx: &mut WindowContext,
13548 ) -> Task<Result<ProjectTransaction>>;
13549}
13550
13551impl CodeActionProvider for Model<Project> {
13552 fn code_actions(
13553 &self,
13554 buffer: &Model<Buffer>,
13555 range: Range<text::Anchor>,
13556 cx: &mut WindowContext,
13557 ) -> Task<Result<Vec<CodeAction>>> {
13558 self.update(cx, |project, cx| {
13559 project.code_actions(buffer, range, None, cx)
13560 })
13561 }
13562
13563 fn apply_code_action(
13564 &self,
13565 buffer_handle: Model<Buffer>,
13566 action: CodeAction,
13567 _excerpt_id: ExcerptId,
13568 push_to_history: bool,
13569 cx: &mut WindowContext,
13570 ) -> Task<Result<ProjectTransaction>> {
13571 self.update(cx, |project, cx| {
13572 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13573 })
13574 }
13575}
13576
13577fn snippet_completions(
13578 project: &Project,
13579 buffer: &Model<Buffer>,
13580 buffer_position: text::Anchor,
13581 cx: &mut AppContext,
13582) -> Task<Result<Vec<Completion>>> {
13583 let language = buffer.read(cx).language_at(buffer_position);
13584 let language_name = language.as_ref().map(|language| language.lsp_id());
13585 let snippet_store = project.snippets().read(cx);
13586 let snippets = snippet_store.snippets_for(language_name, cx);
13587
13588 if snippets.is_empty() {
13589 return Task::ready(Ok(vec![]));
13590 }
13591 let snapshot = buffer.read(cx).text_snapshot();
13592 let chars: String = snapshot
13593 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13594 .collect();
13595
13596 let scope = language.map(|language| language.default_scope());
13597 let executor = cx.background_executor().clone();
13598
13599 cx.background_executor().spawn(async move {
13600 let classifier = CharClassifier::new(scope).for_completion(true);
13601 let mut last_word = chars
13602 .chars()
13603 .take_while(|c| classifier.is_word(*c))
13604 .collect::<String>();
13605 last_word = last_word.chars().rev().collect();
13606
13607 if last_word.is_empty() {
13608 return Ok(vec![]);
13609 }
13610
13611 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13612 let to_lsp = |point: &text::Anchor| {
13613 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13614 point_to_lsp(end)
13615 };
13616 let lsp_end = to_lsp(&buffer_position);
13617
13618 let candidates = snippets
13619 .iter()
13620 .enumerate()
13621 .flat_map(|(ix, snippet)| {
13622 snippet
13623 .prefix
13624 .iter()
13625 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13626 })
13627 .collect::<Vec<StringMatchCandidate>>();
13628
13629 let mut matches = fuzzy::match_strings(
13630 &candidates,
13631 &last_word,
13632 last_word.chars().any(|c| c.is_uppercase()),
13633 100,
13634 &Default::default(),
13635 executor,
13636 )
13637 .await;
13638
13639 // Remove all candidates where the query's start does not match the start of any word in the candidate
13640 if let Some(query_start) = last_word.chars().next() {
13641 matches.retain(|string_match| {
13642 split_words(&string_match.string).any(|word| {
13643 // Check that the first codepoint of the word as lowercase matches the first
13644 // codepoint of the query as lowercase
13645 word.chars()
13646 .flat_map(|codepoint| codepoint.to_lowercase())
13647 .zip(query_start.to_lowercase())
13648 .all(|(word_cp, query_cp)| word_cp == query_cp)
13649 })
13650 });
13651 }
13652
13653 let matched_strings = matches
13654 .into_iter()
13655 .map(|m| m.string)
13656 .collect::<HashSet<_>>();
13657
13658 let result: Vec<Completion> = snippets
13659 .into_iter()
13660 .filter_map(|snippet| {
13661 let matching_prefix = snippet
13662 .prefix
13663 .iter()
13664 .find(|prefix| matched_strings.contains(*prefix))?;
13665 let start = as_offset - last_word.len();
13666 let start = snapshot.anchor_before(start);
13667 let range = start..buffer_position;
13668 let lsp_start = to_lsp(&start);
13669 let lsp_range = lsp::Range {
13670 start: lsp_start,
13671 end: lsp_end,
13672 };
13673 Some(Completion {
13674 old_range: range,
13675 new_text: snippet.body.clone(),
13676 resolved: false,
13677 label: CodeLabel {
13678 text: matching_prefix.clone(),
13679 runs: vec![],
13680 filter_range: 0..matching_prefix.len(),
13681 },
13682 server_id: LanguageServerId(usize::MAX),
13683 documentation: snippet.description.clone().map(Documentation::SingleLine),
13684 lsp_completion: lsp::CompletionItem {
13685 label: snippet.prefix.first().unwrap().clone(),
13686 kind: Some(CompletionItemKind::SNIPPET),
13687 label_details: snippet.description.as_ref().map(|description| {
13688 lsp::CompletionItemLabelDetails {
13689 detail: Some(description.clone()),
13690 description: None,
13691 }
13692 }),
13693 insert_text_format: Some(InsertTextFormat::SNIPPET),
13694 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13695 lsp::InsertReplaceEdit {
13696 new_text: snippet.body.clone(),
13697 insert: lsp_range,
13698 replace: lsp_range,
13699 },
13700 )),
13701 filter_text: Some(snippet.body.clone()),
13702 sort_text: Some(char::MAX.to_string()),
13703 ..Default::default()
13704 },
13705 confirm: None,
13706 })
13707 })
13708 .collect();
13709
13710 Ok(result)
13711 })
13712}
13713
13714impl CompletionProvider for Model<Project> {
13715 fn completions(
13716 &self,
13717 buffer: &Model<Buffer>,
13718 buffer_position: text::Anchor,
13719 options: CompletionContext,
13720 cx: &mut ViewContext<Editor>,
13721 ) -> Task<Result<Vec<Completion>>> {
13722 self.update(cx, |project, cx| {
13723 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13724 let project_completions = project.completions(buffer, buffer_position, options, cx);
13725 cx.background_executor().spawn(async move {
13726 let mut completions = project_completions.await?;
13727 let snippets_completions = snippets.await?;
13728 completions.extend(snippets_completions);
13729 Ok(completions)
13730 })
13731 })
13732 }
13733
13734 fn resolve_completions(
13735 &self,
13736 buffer: Model<Buffer>,
13737 completion_indices: Vec<usize>,
13738 completions: Rc<RefCell<Box<[Completion]>>>,
13739 cx: &mut ViewContext<Editor>,
13740 ) -> Task<Result<bool>> {
13741 self.update(cx, |project, cx| {
13742 project.lsp_store().update(cx, |lsp_store, cx| {
13743 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13744 })
13745 })
13746 }
13747
13748 fn apply_additional_edits_for_completion(
13749 &self,
13750 buffer: Model<Buffer>,
13751 completions: Rc<RefCell<Box<[Completion]>>>,
13752 completion_index: usize,
13753 push_to_history: bool,
13754 cx: &mut ViewContext<Editor>,
13755 ) -> Task<Result<Option<language::Transaction>>> {
13756 self.update(cx, |project, cx| {
13757 project.lsp_store().update(cx, |lsp_store, cx| {
13758 lsp_store.apply_additional_edits_for_completion(
13759 buffer,
13760 completions,
13761 completion_index,
13762 push_to_history,
13763 cx,
13764 )
13765 })
13766 })
13767 }
13768
13769 fn is_completion_trigger(
13770 &self,
13771 buffer: &Model<Buffer>,
13772 position: language::Anchor,
13773 text: &str,
13774 trigger_in_words: bool,
13775 cx: &mut ViewContext<Editor>,
13776 ) -> bool {
13777 let mut chars = text.chars();
13778 let char = if let Some(char) = chars.next() {
13779 char
13780 } else {
13781 return false;
13782 };
13783 if chars.next().is_some() {
13784 return false;
13785 }
13786
13787 let buffer = buffer.read(cx);
13788 let snapshot = buffer.snapshot();
13789 if !snapshot.settings_at(position, cx).show_completions_on_input {
13790 return false;
13791 }
13792 let classifier = snapshot.char_classifier_at(position).for_completion(true);
13793 if trigger_in_words && classifier.is_word(char) {
13794 return true;
13795 }
13796
13797 buffer.completion_triggers().contains(text)
13798 }
13799}
13800
13801impl SemanticsProvider for Model<Project> {
13802 fn hover(
13803 &self,
13804 buffer: &Model<Buffer>,
13805 position: text::Anchor,
13806 cx: &mut AppContext,
13807 ) -> Option<Task<Vec<project::Hover>>> {
13808 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
13809 }
13810
13811 fn document_highlights(
13812 &self,
13813 buffer: &Model<Buffer>,
13814 position: text::Anchor,
13815 cx: &mut AppContext,
13816 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
13817 Some(self.update(cx, |project, cx| {
13818 project.document_highlights(buffer, position, cx)
13819 }))
13820 }
13821
13822 fn definitions(
13823 &self,
13824 buffer: &Model<Buffer>,
13825 position: text::Anchor,
13826 kind: GotoDefinitionKind,
13827 cx: &mut AppContext,
13828 ) -> Option<Task<Result<Vec<LocationLink>>>> {
13829 Some(self.update(cx, |project, cx| match kind {
13830 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
13831 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
13832 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
13833 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
13834 }))
13835 }
13836
13837 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
13838 // TODO: make this work for remote projects
13839 self.read(cx)
13840 .language_servers_for_local_buffer(buffer.read(cx), cx)
13841 .any(
13842 |(_, server)| match server.capabilities().inlay_hint_provider {
13843 Some(lsp::OneOf::Left(enabled)) => enabled,
13844 Some(lsp::OneOf::Right(_)) => true,
13845 None => false,
13846 },
13847 )
13848 }
13849
13850 fn inlay_hints(
13851 &self,
13852 buffer_handle: Model<Buffer>,
13853 range: Range<text::Anchor>,
13854 cx: &mut AppContext,
13855 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
13856 Some(self.update(cx, |project, cx| {
13857 project.inlay_hints(buffer_handle, range, cx)
13858 }))
13859 }
13860
13861 fn resolve_inlay_hint(
13862 &self,
13863 hint: InlayHint,
13864 buffer_handle: Model<Buffer>,
13865 server_id: LanguageServerId,
13866 cx: &mut AppContext,
13867 ) -> Option<Task<anyhow::Result<InlayHint>>> {
13868 Some(self.update(cx, |project, cx| {
13869 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
13870 }))
13871 }
13872
13873 fn range_for_rename(
13874 &self,
13875 buffer: &Model<Buffer>,
13876 position: text::Anchor,
13877 cx: &mut AppContext,
13878 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
13879 Some(self.update(cx, |project, cx| {
13880 project.prepare_rename(buffer.clone(), position, cx)
13881 }))
13882 }
13883
13884 fn perform_rename(
13885 &self,
13886 buffer: &Model<Buffer>,
13887 position: text::Anchor,
13888 new_name: String,
13889 cx: &mut AppContext,
13890 ) -> Option<Task<Result<ProjectTransaction>>> {
13891 Some(self.update(cx, |project, cx| {
13892 project.perform_rename(buffer.clone(), position, new_name, cx)
13893 }))
13894 }
13895}
13896
13897fn inlay_hint_settings(
13898 location: Anchor,
13899 snapshot: &MultiBufferSnapshot,
13900 cx: &mut ViewContext<Editor>,
13901) -> InlayHintSettings {
13902 let file = snapshot.file_at(location);
13903 let language = snapshot.language_at(location).map(|l| l.name());
13904 language_settings(language, file, cx).inlay_hints
13905}
13906
13907fn consume_contiguous_rows(
13908 contiguous_row_selections: &mut Vec<Selection<Point>>,
13909 selection: &Selection<Point>,
13910 display_map: &DisplaySnapshot,
13911 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
13912) -> (MultiBufferRow, MultiBufferRow) {
13913 contiguous_row_selections.push(selection.clone());
13914 let start_row = MultiBufferRow(selection.start.row);
13915 let mut end_row = ending_row(selection, display_map);
13916
13917 while let Some(next_selection) = selections.peek() {
13918 if next_selection.start.row <= end_row.0 {
13919 end_row = ending_row(next_selection, display_map);
13920 contiguous_row_selections.push(selections.next().unwrap().clone());
13921 } else {
13922 break;
13923 }
13924 }
13925 (start_row, end_row)
13926}
13927
13928fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
13929 if next_selection.end.column > 0 || next_selection.is_empty() {
13930 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
13931 } else {
13932 MultiBufferRow(next_selection.end.row)
13933 }
13934}
13935
13936impl EditorSnapshot {
13937 pub fn remote_selections_in_range<'a>(
13938 &'a self,
13939 range: &'a Range<Anchor>,
13940 collaboration_hub: &dyn CollaborationHub,
13941 cx: &'a AppContext,
13942 ) -> impl 'a + Iterator<Item = RemoteSelection> {
13943 let participant_names = collaboration_hub.user_names(cx);
13944 let participant_indices = collaboration_hub.user_participant_indices(cx);
13945 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
13946 let collaborators_by_replica_id = collaborators_by_peer_id
13947 .iter()
13948 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
13949 .collect::<HashMap<_, _>>();
13950 self.buffer_snapshot
13951 .selections_in_range(range, false)
13952 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
13953 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
13954 let participant_index = participant_indices.get(&collaborator.user_id).copied();
13955 let user_name = participant_names.get(&collaborator.user_id).cloned();
13956 Some(RemoteSelection {
13957 replica_id,
13958 selection,
13959 cursor_shape,
13960 line_mode,
13961 participant_index,
13962 peer_id: collaborator.peer_id,
13963 user_name,
13964 })
13965 })
13966 }
13967
13968 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
13969 self.display_snapshot.buffer_snapshot.language_at(position)
13970 }
13971
13972 pub fn is_focused(&self) -> bool {
13973 self.is_focused
13974 }
13975
13976 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
13977 self.placeholder_text.as_ref()
13978 }
13979
13980 pub fn scroll_position(&self) -> gpui::Point<f32> {
13981 self.scroll_anchor.scroll_position(&self.display_snapshot)
13982 }
13983
13984 fn gutter_dimensions(
13985 &self,
13986 font_id: FontId,
13987 font_size: Pixels,
13988 em_width: Pixels,
13989 em_advance: Pixels,
13990 max_line_number_width: Pixels,
13991 cx: &AppContext,
13992 ) -> GutterDimensions {
13993 if !self.show_gutter {
13994 return GutterDimensions::default();
13995 }
13996 let descent = cx.text_system().descent(font_id, font_size);
13997
13998 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
13999 matches!(
14000 ProjectSettings::get_global(cx).git.git_gutter,
14001 Some(GitGutterSetting::TrackedFiles)
14002 )
14003 });
14004 let gutter_settings = EditorSettings::get_global(cx).gutter;
14005 let show_line_numbers = self
14006 .show_line_numbers
14007 .unwrap_or(gutter_settings.line_numbers);
14008 let line_gutter_width = if show_line_numbers {
14009 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14010 let min_width_for_number_on_gutter = em_advance * 4.0;
14011 max_line_number_width.max(min_width_for_number_on_gutter)
14012 } else {
14013 0.0.into()
14014 };
14015
14016 let show_code_actions = self
14017 .show_code_actions
14018 .unwrap_or(gutter_settings.code_actions);
14019
14020 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14021
14022 let git_blame_entries_width =
14023 self.git_blame_gutter_max_author_length
14024 .map(|max_author_length| {
14025 // Length of the author name, but also space for the commit hash,
14026 // the spacing and the timestamp.
14027 let max_char_count = max_author_length
14028 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14029 + 7 // length of commit sha
14030 + 14 // length of max relative timestamp ("60 minutes ago")
14031 + 4; // gaps and margins
14032
14033 em_advance * max_char_count
14034 });
14035
14036 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14037 left_padding += if show_code_actions || show_runnables {
14038 em_width * 3.0
14039 } else if show_git_gutter && show_line_numbers {
14040 em_width * 2.0
14041 } else if show_git_gutter || show_line_numbers {
14042 em_width
14043 } else {
14044 px(0.)
14045 };
14046
14047 let right_padding = if gutter_settings.folds && show_line_numbers {
14048 em_width * 4.0
14049 } else if gutter_settings.folds {
14050 em_width * 3.0
14051 } else if show_line_numbers {
14052 em_width
14053 } else {
14054 px(0.)
14055 };
14056
14057 GutterDimensions {
14058 left_padding,
14059 right_padding,
14060 width: line_gutter_width + left_padding + right_padding,
14061 margin: -descent,
14062 git_blame_entries_width,
14063 }
14064 }
14065
14066 pub fn render_crease_toggle(
14067 &self,
14068 buffer_row: MultiBufferRow,
14069 row_contains_cursor: bool,
14070 editor: View<Editor>,
14071 cx: &mut WindowContext,
14072 ) -> Option<AnyElement> {
14073 let folded = self.is_line_folded(buffer_row);
14074 let mut is_foldable = false;
14075
14076 if let Some(crease) = self
14077 .crease_snapshot
14078 .query_row(buffer_row, &self.buffer_snapshot)
14079 {
14080 is_foldable = true;
14081 match crease {
14082 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14083 if let Some(render_toggle) = render_toggle {
14084 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14085 if folded {
14086 editor.update(cx, |editor, cx| {
14087 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14088 });
14089 } else {
14090 editor.update(cx, |editor, cx| {
14091 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14092 });
14093 }
14094 });
14095 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14096 }
14097 }
14098 }
14099 }
14100
14101 is_foldable |= self.starts_indent(buffer_row);
14102
14103 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14104 Some(
14105 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14106 .toggle_state(folded)
14107 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14108 if folded {
14109 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14110 } else {
14111 this.fold_at(&FoldAt { buffer_row }, cx);
14112 }
14113 }))
14114 .into_any_element(),
14115 )
14116 } else {
14117 None
14118 }
14119 }
14120
14121 pub fn render_crease_trailer(
14122 &self,
14123 buffer_row: MultiBufferRow,
14124 cx: &mut WindowContext,
14125 ) -> Option<AnyElement> {
14126 let folded = self.is_line_folded(buffer_row);
14127 if let Crease::Inline { render_trailer, .. } = self
14128 .crease_snapshot
14129 .query_row(buffer_row, &self.buffer_snapshot)?
14130 {
14131 let render_trailer = render_trailer.as_ref()?;
14132 Some(render_trailer(buffer_row, folded, cx))
14133 } else {
14134 None
14135 }
14136 }
14137}
14138
14139impl Deref for EditorSnapshot {
14140 type Target = DisplaySnapshot;
14141
14142 fn deref(&self) -> &Self::Target {
14143 &self.display_snapshot
14144 }
14145}
14146
14147#[derive(Clone, Debug, PartialEq, Eq)]
14148pub enum EditorEvent {
14149 InputIgnored {
14150 text: Arc<str>,
14151 },
14152 InputHandled {
14153 utf16_range_to_replace: Option<Range<isize>>,
14154 text: Arc<str>,
14155 },
14156 ExcerptsAdded {
14157 buffer: Model<Buffer>,
14158 predecessor: ExcerptId,
14159 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14160 },
14161 ExcerptsRemoved {
14162 ids: Vec<ExcerptId>,
14163 },
14164 BufferFoldToggled {
14165 ids: Vec<ExcerptId>,
14166 folded: bool,
14167 },
14168 ExcerptsEdited {
14169 ids: Vec<ExcerptId>,
14170 },
14171 ExcerptsExpanded {
14172 ids: Vec<ExcerptId>,
14173 },
14174 BufferEdited,
14175 Edited {
14176 transaction_id: clock::Lamport,
14177 },
14178 Reparsed(BufferId),
14179 Focused,
14180 FocusedIn,
14181 Blurred,
14182 DirtyChanged,
14183 Saved,
14184 TitleChanged,
14185 DiffBaseChanged,
14186 SelectionsChanged {
14187 local: bool,
14188 },
14189 ScrollPositionChanged {
14190 local: bool,
14191 autoscroll: bool,
14192 },
14193 Closed,
14194 TransactionUndone {
14195 transaction_id: clock::Lamport,
14196 },
14197 TransactionBegun {
14198 transaction_id: clock::Lamport,
14199 },
14200 Reloaded,
14201 CursorShapeChanged,
14202}
14203
14204impl EventEmitter<EditorEvent> for Editor {}
14205
14206impl FocusableView for Editor {
14207 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14208 self.focus_handle.clone()
14209 }
14210}
14211
14212impl Render for Editor {
14213 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14214 let settings = ThemeSettings::get_global(cx);
14215
14216 let mut text_style = match self.mode {
14217 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14218 color: cx.theme().colors().editor_foreground,
14219 font_family: settings.ui_font.family.clone(),
14220 font_features: settings.ui_font.features.clone(),
14221 font_fallbacks: settings.ui_font.fallbacks.clone(),
14222 font_size: rems(0.875).into(),
14223 font_weight: settings.ui_font.weight,
14224 line_height: relative(settings.buffer_line_height.value()),
14225 ..Default::default()
14226 },
14227 EditorMode::Full => TextStyle {
14228 color: cx.theme().colors().editor_foreground,
14229 font_family: settings.buffer_font.family.clone(),
14230 font_features: settings.buffer_font.features.clone(),
14231 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14232 font_size: settings.buffer_font_size(cx).into(),
14233 font_weight: settings.buffer_font.weight,
14234 line_height: relative(settings.buffer_line_height.value()),
14235 ..Default::default()
14236 },
14237 };
14238 if let Some(text_style_refinement) = &self.text_style_refinement {
14239 text_style.refine(text_style_refinement)
14240 }
14241
14242 let background = match self.mode {
14243 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14244 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14245 EditorMode::Full => cx.theme().colors().editor_background,
14246 };
14247
14248 EditorElement::new(
14249 cx.view(),
14250 EditorStyle {
14251 background,
14252 local_player: cx.theme().players().local(),
14253 text: text_style,
14254 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14255 syntax: cx.theme().syntax().clone(),
14256 status: cx.theme().status().clone(),
14257 inlay_hints_style: make_inlay_hints_style(cx),
14258 inline_completion_styles: make_suggestion_styles(cx),
14259 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14260 },
14261 )
14262 }
14263}
14264
14265impl ViewInputHandler for Editor {
14266 fn text_for_range(
14267 &mut self,
14268 range_utf16: Range<usize>,
14269 adjusted_range: &mut Option<Range<usize>>,
14270 cx: &mut ViewContext<Self>,
14271 ) -> Option<String> {
14272 let snapshot = self.buffer.read(cx).read(cx);
14273 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14274 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14275 if (start.0..end.0) != range_utf16 {
14276 adjusted_range.replace(start.0..end.0);
14277 }
14278 Some(snapshot.text_for_range(start..end).collect())
14279 }
14280
14281 fn selected_text_range(
14282 &mut self,
14283 ignore_disabled_input: bool,
14284 cx: &mut ViewContext<Self>,
14285 ) -> Option<UTF16Selection> {
14286 // Prevent the IME menu from appearing when holding down an alphabetic key
14287 // while input is disabled.
14288 if !ignore_disabled_input && !self.input_enabled {
14289 return None;
14290 }
14291
14292 let selection = self.selections.newest::<OffsetUtf16>(cx);
14293 let range = selection.range();
14294
14295 Some(UTF16Selection {
14296 range: range.start.0..range.end.0,
14297 reversed: selection.reversed,
14298 })
14299 }
14300
14301 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14302 let snapshot = self.buffer.read(cx).read(cx);
14303 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14304 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14305 }
14306
14307 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14308 self.clear_highlights::<InputComposition>(cx);
14309 self.ime_transaction.take();
14310 }
14311
14312 fn replace_text_in_range(
14313 &mut self,
14314 range_utf16: Option<Range<usize>>,
14315 text: &str,
14316 cx: &mut ViewContext<Self>,
14317 ) {
14318 if !self.input_enabled {
14319 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14320 return;
14321 }
14322
14323 self.transact(cx, |this, cx| {
14324 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14325 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14326 Some(this.selection_replacement_ranges(range_utf16, cx))
14327 } else {
14328 this.marked_text_ranges(cx)
14329 };
14330
14331 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14332 let newest_selection_id = this.selections.newest_anchor().id;
14333 this.selections
14334 .all::<OffsetUtf16>(cx)
14335 .iter()
14336 .zip(ranges_to_replace.iter())
14337 .find_map(|(selection, range)| {
14338 if selection.id == newest_selection_id {
14339 Some(
14340 (range.start.0 as isize - selection.head().0 as isize)
14341 ..(range.end.0 as isize - selection.head().0 as isize),
14342 )
14343 } else {
14344 None
14345 }
14346 })
14347 });
14348
14349 cx.emit(EditorEvent::InputHandled {
14350 utf16_range_to_replace: range_to_replace,
14351 text: text.into(),
14352 });
14353
14354 if let Some(new_selected_ranges) = new_selected_ranges {
14355 this.change_selections(None, cx, |selections| {
14356 selections.select_ranges(new_selected_ranges)
14357 });
14358 this.backspace(&Default::default(), cx);
14359 }
14360
14361 this.handle_input(text, cx);
14362 });
14363
14364 if let Some(transaction) = self.ime_transaction {
14365 self.buffer.update(cx, |buffer, cx| {
14366 buffer.group_until_transaction(transaction, cx);
14367 });
14368 }
14369
14370 self.unmark_text(cx);
14371 }
14372
14373 fn replace_and_mark_text_in_range(
14374 &mut self,
14375 range_utf16: Option<Range<usize>>,
14376 text: &str,
14377 new_selected_range_utf16: Option<Range<usize>>,
14378 cx: &mut ViewContext<Self>,
14379 ) {
14380 if !self.input_enabled {
14381 return;
14382 }
14383
14384 let transaction = self.transact(cx, |this, cx| {
14385 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14386 let snapshot = this.buffer.read(cx).read(cx);
14387 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14388 for marked_range in &mut marked_ranges {
14389 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14390 marked_range.start.0 += relative_range_utf16.start;
14391 marked_range.start =
14392 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14393 marked_range.end =
14394 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14395 }
14396 }
14397 Some(marked_ranges)
14398 } else if let Some(range_utf16) = range_utf16 {
14399 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14400 Some(this.selection_replacement_ranges(range_utf16, cx))
14401 } else {
14402 None
14403 };
14404
14405 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14406 let newest_selection_id = this.selections.newest_anchor().id;
14407 this.selections
14408 .all::<OffsetUtf16>(cx)
14409 .iter()
14410 .zip(ranges_to_replace.iter())
14411 .find_map(|(selection, range)| {
14412 if selection.id == newest_selection_id {
14413 Some(
14414 (range.start.0 as isize - selection.head().0 as isize)
14415 ..(range.end.0 as isize - selection.head().0 as isize),
14416 )
14417 } else {
14418 None
14419 }
14420 })
14421 });
14422
14423 cx.emit(EditorEvent::InputHandled {
14424 utf16_range_to_replace: range_to_replace,
14425 text: text.into(),
14426 });
14427
14428 if let Some(ranges) = ranges_to_replace {
14429 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14430 }
14431
14432 let marked_ranges = {
14433 let snapshot = this.buffer.read(cx).read(cx);
14434 this.selections
14435 .disjoint_anchors()
14436 .iter()
14437 .map(|selection| {
14438 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14439 })
14440 .collect::<Vec<_>>()
14441 };
14442
14443 if text.is_empty() {
14444 this.unmark_text(cx);
14445 } else {
14446 this.highlight_text::<InputComposition>(
14447 marked_ranges.clone(),
14448 HighlightStyle {
14449 underline: Some(UnderlineStyle {
14450 thickness: px(1.),
14451 color: None,
14452 wavy: false,
14453 }),
14454 ..Default::default()
14455 },
14456 cx,
14457 );
14458 }
14459
14460 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14461 let use_autoclose = this.use_autoclose;
14462 let use_auto_surround = this.use_auto_surround;
14463 this.set_use_autoclose(false);
14464 this.set_use_auto_surround(false);
14465 this.handle_input(text, cx);
14466 this.set_use_autoclose(use_autoclose);
14467 this.set_use_auto_surround(use_auto_surround);
14468
14469 if let Some(new_selected_range) = new_selected_range_utf16 {
14470 let snapshot = this.buffer.read(cx).read(cx);
14471 let new_selected_ranges = marked_ranges
14472 .into_iter()
14473 .map(|marked_range| {
14474 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14475 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14476 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14477 snapshot.clip_offset_utf16(new_start, Bias::Left)
14478 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14479 })
14480 .collect::<Vec<_>>();
14481
14482 drop(snapshot);
14483 this.change_selections(None, cx, |selections| {
14484 selections.select_ranges(new_selected_ranges)
14485 });
14486 }
14487 });
14488
14489 self.ime_transaction = self.ime_transaction.or(transaction);
14490 if let Some(transaction) = self.ime_transaction {
14491 self.buffer.update(cx, |buffer, cx| {
14492 buffer.group_until_transaction(transaction, cx);
14493 });
14494 }
14495
14496 if self.text_highlights::<InputComposition>(cx).is_none() {
14497 self.ime_transaction.take();
14498 }
14499 }
14500
14501 fn bounds_for_range(
14502 &mut self,
14503 range_utf16: Range<usize>,
14504 element_bounds: gpui::Bounds<Pixels>,
14505 cx: &mut ViewContext<Self>,
14506 ) -> Option<gpui::Bounds<Pixels>> {
14507 let text_layout_details = self.text_layout_details(cx);
14508 let gpui::Point {
14509 x: em_width,
14510 y: line_height,
14511 } = self.character_size(cx);
14512
14513 let snapshot = self.snapshot(cx);
14514 let scroll_position = snapshot.scroll_position();
14515 let scroll_left = scroll_position.x * em_width;
14516
14517 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14518 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14519 + self.gutter_dimensions.width
14520 + self.gutter_dimensions.margin;
14521 let y = line_height * (start.row().as_f32() - scroll_position.y);
14522
14523 Some(Bounds {
14524 origin: element_bounds.origin + point(x, y),
14525 size: size(em_width, line_height),
14526 })
14527 }
14528}
14529
14530trait SelectionExt {
14531 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14532 fn spanned_rows(
14533 &self,
14534 include_end_if_at_line_start: bool,
14535 map: &DisplaySnapshot,
14536 ) -> Range<MultiBufferRow>;
14537}
14538
14539impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14540 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14541 let start = self
14542 .start
14543 .to_point(&map.buffer_snapshot)
14544 .to_display_point(map);
14545 let end = self
14546 .end
14547 .to_point(&map.buffer_snapshot)
14548 .to_display_point(map);
14549 if self.reversed {
14550 end..start
14551 } else {
14552 start..end
14553 }
14554 }
14555
14556 fn spanned_rows(
14557 &self,
14558 include_end_if_at_line_start: bool,
14559 map: &DisplaySnapshot,
14560 ) -> Range<MultiBufferRow> {
14561 let start = self.start.to_point(&map.buffer_snapshot);
14562 let mut end = self.end.to_point(&map.buffer_snapshot);
14563 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14564 end.row -= 1;
14565 }
14566
14567 let buffer_start = map.prev_line_boundary(start).0;
14568 let buffer_end = map.next_line_boundary(end).0;
14569 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14570 }
14571}
14572
14573impl<T: InvalidationRegion> InvalidationStack<T> {
14574 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14575 where
14576 S: Clone + ToOffset,
14577 {
14578 while let Some(region) = self.last() {
14579 let all_selections_inside_invalidation_ranges =
14580 if selections.len() == region.ranges().len() {
14581 selections
14582 .iter()
14583 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14584 .all(|(selection, invalidation_range)| {
14585 let head = selection.head().to_offset(buffer);
14586 invalidation_range.start <= head && invalidation_range.end >= head
14587 })
14588 } else {
14589 false
14590 };
14591
14592 if all_selections_inside_invalidation_ranges {
14593 break;
14594 } else {
14595 self.pop();
14596 }
14597 }
14598 }
14599}
14600
14601impl<T> Default for InvalidationStack<T> {
14602 fn default() -> Self {
14603 Self(Default::default())
14604 }
14605}
14606
14607impl<T> Deref for InvalidationStack<T> {
14608 type Target = Vec<T>;
14609
14610 fn deref(&self) -> &Self::Target {
14611 &self.0
14612 }
14613}
14614
14615impl<T> DerefMut for InvalidationStack<T> {
14616 fn deref_mut(&mut self) -> &mut Self::Target {
14617 &mut self.0
14618 }
14619}
14620
14621impl InvalidationRegion for SnippetState {
14622 fn ranges(&self) -> &[Range<Anchor>] {
14623 &self.ranges[self.active_index]
14624 }
14625}
14626
14627pub fn diagnostic_block_renderer(
14628 diagnostic: Diagnostic,
14629 max_message_rows: Option<u8>,
14630 allow_closing: bool,
14631 _is_valid: bool,
14632) -> RenderBlock {
14633 let (text_without_backticks, code_ranges) =
14634 highlight_diagnostic_message(&diagnostic, max_message_rows);
14635
14636 Arc::new(move |cx: &mut BlockContext| {
14637 let group_id: SharedString = cx.block_id.to_string().into();
14638
14639 let mut text_style = cx.text_style().clone();
14640 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14641 let theme_settings = ThemeSettings::get_global(cx);
14642 text_style.font_family = theme_settings.buffer_font.family.clone();
14643 text_style.font_style = theme_settings.buffer_font.style;
14644 text_style.font_features = theme_settings.buffer_font.features.clone();
14645 text_style.font_weight = theme_settings.buffer_font.weight;
14646
14647 let multi_line_diagnostic = diagnostic.message.contains('\n');
14648
14649 let buttons = |diagnostic: &Diagnostic| {
14650 if multi_line_diagnostic {
14651 v_flex()
14652 } else {
14653 h_flex()
14654 }
14655 .when(allow_closing, |div| {
14656 div.children(diagnostic.is_primary.then(|| {
14657 IconButton::new("close-block", IconName::XCircle)
14658 .icon_color(Color::Muted)
14659 .size(ButtonSize::Compact)
14660 .style(ButtonStyle::Transparent)
14661 .visible_on_hover(group_id.clone())
14662 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14663 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14664 }))
14665 })
14666 .child(
14667 IconButton::new("copy-block", IconName::Copy)
14668 .icon_color(Color::Muted)
14669 .size(ButtonSize::Compact)
14670 .style(ButtonStyle::Transparent)
14671 .visible_on_hover(group_id.clone())
14672 .on_click({
14673 let message = diagnostic.message.clone();
14674 move |_click, cx| {
14675 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14676 }
14677 })
14678 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14679 )
14680 };
14681
14682 let icon_size = buttons(&diagnostic)
14683 .into_any_element()
14684 .layout_as_root(AvailableSpace::min_size(), cx);
14685
14686 h_flex()
14687 .id(cx.block_id)
14688 .group(group_id.clone())
14689 .relative()
14690 .size_full()
14691 .block_mouse_down()
14692 .pl(cx.gutter_dimensions.width)
14693 .w(cx.max_width - cx.gutter_dimensions.full_width())
14694 .child(
14695 div()
14696 .flex()
14697 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14698 .flex_shrink(),
14699 )
14700 .child(buttons(&diagnostic))
14701 .child(div().flex().flex_shrink_0().child(
14702 StyledText::new(text_without_backticks.clone()).with_highlights(
14703 &text_style,
14704 code_ranges.iter().map(|range| {
14705 (
14706 range.clone(),
14707 HighlightStyle {
14708 font_weight: Some(FontWeight::BOLD),
14709 ..Default::default()
14710 },
14711 )
14712 }),
14713 ),
14714 ))
14715 .into_any_element()
14716 })
14717}
14718
14719fn inline_completion_edit_text(
14720 editor_snapshot: &EditorSnapshot,
14721 edits: &Vec<(Range<Anchor>, String)>,
14722 include_deletions: bool,
14723 cx: &WindowContext,
14724) -> InlineCompletionText {
14725 let edit_start = edits
14726 .first()
14727 .unwrap()
14728 .0
14729 .start
14730 .to_display_point(editor_snapshot);
14731
14732 let mut text = String::new();
14733 let mut offset = DisplayPoint::new(edit_start.row(), 0).to_offset(editor_snapshot, Bias::Left);
14734 let mut highlights = Vec::new();
14735 for (old_range, new_text) in edits {
14736 let old_offset_range = old_range.to_offset(&editor_snapshot.buffer_snapshot);
14737 text.extend(
14738 editor_snapshot
14739 .buffer_snapshot
14740 .chunks(offset..old_offset_range.start, false)
14741 .map(|chunk| chunk.text),
14742 );
14743 offset = old_offset_range.end;
14744
14745 let start = text.len();
14746 let color = if include_deletions && new_text.is_empty() {
14747 text.extend(
14748 editor_snapshot
14749 .buffer_snapshot
14750 .chunks(old_offset_range.start..offset, false)
14751 .map(|chunk| chunk.text),
14752 );
14753 cx.theme().status().deleted_background
14754 } else {
14755 text.push_str(new_text);
14756 cx.theme().status().created_background
14757 };
14758 let end = text.len();
14759
14760 highlights.push((
14761 start..end,
14762 HighlightStyle {
14763 background_color: Some(color),
14764 ..Default::default()
14765 },
14766 ));
14767 }
14768
14769 let edit_end = edits
14770 .last()
14771 .unwrap()
14772 .0
14773 .end
14774 .to_display_point(editor_snapshot);
14775 let end_of_line = DisplayPoint::new(edit_end.row(), editor_snapshot.line_len(edit_end.row()))
14776 .to_offset(editor_snapshot, Bias::Right);
14777 text.extend(
14778 editor_snapshot
14779 .buffer_snapshot
14780 .chunks(offset..end_of_line, false)
14781 .map(|chunk| chunk.text),
14782 );
14783
14784 InlineCompletionText::Edit {
14785 text: text.into(),
14786 highlights,
14787 }
14788}
14789
14790pub fn highlight_diagnostic_message(
14791 diagnostic: &Diagnostic,
14792 mut max_message_rows: Option<u8>,
14793) -> (SharedString, Vec<Range<usize>>) {
14794 let mut text_without_backticks = String::new();
14795 let mut code_ranges = Vec::new();
14796
14797 if let Some(source) = &diagnostic.source {
14798 text_without_backticks.push_str(source);
14799 code_ranges.push(0..source.len());
14800 text_without_backticks.push_str(": ");
14801 }
14802
14803 let mut prev_offset = 0;
14804 let mut in_code_block = false;
14805 let has_row_limit = max_message_rows.is_some();
14806 let mut newline_indices = diagnostic
14807 .message
14808 .match_indices('\n')
14809 .filter(|_| has_row_limit)
14810 .map(|(ix, _)| ix)
14811 .fuse()
14812 .peekable();
14813
14814 for (quote_ix, _) in diagnostic
14815 .message
14816 .match_indices('`')
14817 .chain([(diagnostic.message.len(), "")])
14818 {
14819 let mut first_newline_ix = None;
14820 let mut last_newline_ix = None;
14821 while let Some(newline_ix) = newline_indices.peek() {
14822 if *newline_ix < quote_ix {
14823 if first_newline_ix.is_none() {
14824 first_newline_ix = Some(*newline_ix);
14825 }
14826 last_newline_ix = Some(*newline_ix);
14827
14828 if let Some(rows_left) = &mut max_message_rows {
14829 if *rows_left == 0 {
14830 break;
14831 } else {
14832 *rows_left -= 1;
14833 }
14834 }
14835 let _ = newline_indices.next();
14836 } else {
14837 break;
14838 }
14839 }
14840 let prev_len = text_without_backticks.len();
14841 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
14842 text_without_backticks.push_str(new_text);
14843 if in_code_block {
14844 code_ranges.push(prev_len..text_without_backticks.len());
14845 }
14846 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
14847 in_code_block = !in_code_block;
14848 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
14849 text_without_backticks.push_str("...");
14850 break;
14851 }
14852 }
14853
14854 (text_without_backticks.into(), code_ranges)
14855}
14856
14857fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
14858 match severity {
14859 DiagnosticSeverity::ERROR => colors.error,
14860 DiagnosticSeverity::WARNING => colors.warning,
14861 DiagnosticSeverity::INFORMATION => colors.info,
14862 DiagnosticSeverity::HINT => colors.info,
14863 _ => colors.ignored,
14864 }
14865}
14866
14867pub fn styled_runs_for_code_label<'a>(
14868 label: &'a CodeLabel,
14869 syntax_theme: &'a theme::SyntaxTheme,
14870) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
14871 let fade_out = HighlightStyle {
14872 fade_out: Some(0.35),
14873 ..Default::default()
14874 };
14875
14876 let mut prev_end = label.filter_range.end;
14877 label
14878 .runs
14879 .iter()
14880 .enumerate()
14881 .flat_map(move |(ix, (range, highlight_id))| {
14882 let style = if let Some(style) = highlight_id.style(syntax_theme) {
14883 style
14884 } else {
14885 return Default::default();
14886 };
14887 let mut muted_style = style;
14888 muted_style.highlight(fade_out);
14889
14890 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
14891 if range.start >= label.filter_range.end {
14892 if range.start > prev_end {
14893 runs.push((prev_end..range.start, fade_out));
14894 }
14895 runs.push((range.clone(), muted_style));
14896 } else if range.end <= label.filter_range.end {
14897 runs.push((range.clone(), style));
14898 } else {
14899 runs.push((range.start..label.filter_range.end, style));
14900 runs.push((label.filter_range.end..range.end, muted_style));
14901 }
14902 prev_end = cmp::max(prev_end, range.end);
14903
14904 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
14905 runs.push((prev_end..label.text.len(), fade_out));
14906 }
14907
14908 runs
14909 })
14910}
14911
14912pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
14913 let mut prev_index = 0;
14914 let mut prev_codepoint: Option<char> = None;
14915 text.char_indices()
14916 .chain([(text.len(), '\0')])
14917 .filter_map(move |(index, codepoint)| {
14918 let prev_codepoint = prev_codepoint.replace(codepoint)?;
14919 let is_boundary = index == text.len()
14920 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
14921 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
14922 if is_boundary {
14923 let chunk = &text[prev_index..index];
14924 prev_index = index;
14925 Some(chunk)
14926 } else {
14927 None
14928 }
14929 })
14930}
14931
14932pub trait RangeToAnchorExt: Sized {
14933 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
14934
14935 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
14936 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
14937 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
14938 }
14939}
14940
14941impl<T: ToOffset> RangeToAnchorExt for Range<T> {
14942 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
14943 let start_offset = self.start.to_offset(snapshot);
14944 let end_offset = self.end.to_offset(snapshot);
14945 if start_offset == end_offset {
14946 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
14947 } else {
14948 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
14949 }
14950 }
14951}
14952
14953pub trait RowExt {
14954 fn as_f32(&self) -> f32;
14955
14956 fn next_row(&self) -> Self;
14957
14958 fn previous_row(&self) -> Self;
14959
14960 fn minus(&self, other: Self) -> u32;
14961}
14962
14963impl RowExt for DisplayRow {
14964 fn as_f32(&self) -> f32 {
14965 self.0 as f32
14966 }
14967
14968 fn next_row(&self) -> Self {
14969 Self(self.0 + 1)
14970 }
14971
14972 fn previous_row(&self) -> Self {
14973 Self(self.0.saturating_sub(1))
14974 }
14975
14976 fn minus(&self, other: Self) -> u32 {
14977 self.0 - other.0
14978 }
14979}
14980
14981impl RowExt for MultiBufferRow {
14982 fn as_f32(&self) -> f32 {
14983 self.0 as f32
14984 }
14985
14986 fn next_row(&self) -> Self {
14987 Self(self.0 + 1)
14988 }
14989
14990 fn previous_row(&self) -> Self {
14991 Self(self.0.saturating_sub(1))
14992 }
14993
14994 fn minus(&self, other: Self) -> u32 {
14995 self.0 - other.0
14996 }
14997}
14998
14999trait RowRangeExt {
15000 type Row;
15001
15002 fn len(&self) -> usize;
15003
15004 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15005}
15006
15007impl RowRangeExt for Range<MultiBufferRow> {
15008 type Row = MultiBufferRow;
15009
15010 fn len(&self) -> usize {
15011 (self.end.0 - self.start.0) as usize
15012 }
15013
15014 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15015 (self.start.0..self.end.0).map(MultiBufferRow)
15016 }
15017}
15018
15019impl RowRangeExt for Range<DisplayRow> {
15020 type Row = DisplayRow;
15021
15022 fn len(&self) -> usize {
15023 (self.end.0 - self.start.0) as usize
15024 }
15025
15026 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15027 (self.start.0..self.end.0).map(DisplayRow)
15028 }
15029}
15030
15031fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15032 if hunk.diff_base_byte_range.is_empty() {
15033 DiffHunkStatus::Added
15034 } else if hunk.row_range.is_empty() {
15035 DiffHunkStatus::Removed
15036 } else {
15037 DiffHunkStatus::Modified
15038 }
15039}
15040
15041/// If select range has more than one line, we
15042/// just point the cursor to range.start.
15043fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15044 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15045 range
15046 } else {
15047 range.start..range.start
15048 }
15049}
15050
15051pub struct KillRing(ClipboardItem);
15052impl Global for KillRing {}
15053
15054const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);