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;
73use zed_predict_tos::ZedPredictTos;
74
75use code_context_menus::{
76 AvailableCodeAction, CodeActionContents, CodeActionsItem, CodeActionsMenu, CodeContextMenu,
77 CompletionEntry, CompletionsMenu, ContextMenuOrigin,
78};
79use git::blame::GitBlame;
80use gpui::{
81 div, impl_actions, point, prelude::*, px, relative, size, Action, AnyElement, AppContext,
82 AsyncWindowContext, AvailableSpace, Bounds, ClipboardEntry, ClipboardItem, Context,
83 DispatchPhase, ElementId, EventEmitter, FocusHandle, FocusOutEvent, FocusableView, FontId,
84 FontWeight, Global, HighlightStyle, Hsla, InteractiveText, KeyContext, Model, ModelContext,
85 MouseButton, PaintQuad, ParentElement, Pixels, Render, SharedString, Size, Styled, StyledText,
86 Subscription, Task, TextStyle, TextStyleRefinement, UTF16Selection, UnderlineStyle,
87 UniformListScrollHandle, View, ViewContext, ViewInputHandler, VisualContext, WeakFocusHandle,
88 WeakView, WindowContext,
89};
90use highlight_matching_bracket::refresh_matching_bracket_highlights;
91use hover_popover::{hide_hover, HoverState};
92pub(crate) use hunk_diff::HoveredHunk;
93use hunk_diff::{diff_hunk_to_display, DiffMap, DiffMapSnapshot};
94use indent_guides::ActiveIndentGuidesState;
95use inlay_hint_cache::{InlayHintCache, InlaySplice, InvalidationStrategy};
96pub use inline_completion::Direction;
97use inline_completion::{InlineCompletionProvider, InlineCompletionProviderHandle};
98pub use items::MAX_TAB_TITLE_LEN;
99use itertools::Itertools;
100use language::{
101 language_settings::{self, all_language_settings, language_settings, InlayHintSettings},
102 markdown, point_from_lsp, AutoindentMode, BracketPair, Buffer, Capability, CharKind, CodeLabel,
103 CursorShape, Diagnostic, Documentation, EditPreview, HighlightedEdits, IndentKind, IndentSize,
104 Language, OffsetRangeExt, Point, Selection, SelectionGoal, TransactionId,
105};
106use language::{point_to_lsp, BufferRow, CharClassifier, Runnable, RunnableRange};
107use linked_editing_ranges::refresh_linked_ranges;
108use mouse_context_menu::MouseContextMenu;
109pub use proposed_changes_editor::{
110 ProposedChangeLocation, ProposedChangesEditor, ProposedChangesEditorToolbar,
111};
112use similar::{ChangeTag, TextDiff};
113use std::iter::Peekable;
114use task::{ResolvedTask, TaskTemplate, TaskVariables};
115
116use hover_links::{find_file, HoverLink, HoveredLinkState, InlayHighlight};
117pub use lsp::CompletionContext;
118use lsp::{
119 CompletionItemKind, CompletionTriggerKind, DiagnosticSeverity, InsertTextFormat,
120 LanguageServerId, LanguageServerName,
121};
122
123use language::BufferSnapshot;
124use movement::TextLayoutDetails;
125pub use multi_buffer::{
126 Anchor, AnchorRangeExt, ExcerptId, ExcerptRange, MultiBuffer, MultiBufferSnapshot, ToOffset,
127 ToPoint,
128};
129use multi_buffer::{
130 ExpandExcerptDirection, MultiBufferDiffHunk, MultiBufferPoint, MultiBufferRow, ToOffsetUtf16,
131};
132use project::{
133 buffer_store::BufferChangeSet,
134 lsp_store::{FormatTrigger, LspFormatTarget, OpenLspBufferHandle},
135 project_settings::{GitGutterSetting, ProjectSettings},
136 CodeAction, Completion, CompletionIntent, DocumentHighlight, InlayHint, Location, LocationLink,
137 LspStore, PrepareRenameResponse, Project, ProjectItem, ProjectTransaction, TaskSourceKind,
138};
139use rand::prelude::*;
140use rpc::{proto::*, ErrorExt};
141use scroll::{Autoscroll, OngoingScroll, ScrollAnchor, ScrollManager, ScrollbarAutoHide};
142use selections_collection::{
143 resolve_selections, MutableSelectionsCollection, SelectionsCollection,
144};
145use serde::{Deserialize, Serialize};
146use settings::{update_settings_file, Settings, SettingsLocation, SettingsStore};
147use smallvec::SmallVec;
148use snippet::Snippet;
149use std::{
150 any::TypeId,
151 borrow::Cow,
152 cell::RefCell,
153 cmp::{self, Ordering, Reverse},
154 mem,
155 num::NonZeroU32,
156 ops::{ControlFlow, Deref, DerefMut, Not as _, Range, RangeInclusive},
157 path::{Path, PathBuf},
158 rc::Rc,
159 sync::Arc,
160 time::{Duration, Instant},
161};
162pub use sum_tree::Bias;
163use sum_tree::TreeMap;
164use text::{BufferId, OffsetUtf16, Rope};
165use theme::{ActiveTheme, PlayerColor, StatusColors, SyntaxTheme, ThemeColors, ThemeSettings};
166use ui::{
167 h_flex, prelude::*, ButtonSize, ButtonStyle, Disclosure, IconButton, IconName, IconSize,
168 PopoverMenuHandle, Tooltip,
169};
170use util::{defer, maybe, post_inc, RangeExt, ResultExt, TryFutureExt};
171use workspace::item::{ItemHandle, PreviewTabsSettings};
172use workspace::notifications::{DetachAndPromptErr, NotificationId, NotifyTaskExt};
173use workspace::{
174 searchable::SearchEvent, ItemNavHistory, SplitDirection, ViewId, Workspace, WorkspaceId,
175};
176use workspace::{Item as WorkspaceItem, OpenInTerminal, OpenTerminal, TabBarSettings, Toast};
177
178use crate::hover_links::{find_url, find_url_from_range};
179use crate::signature_help::{SignatureHelpHiddenBy, SignatureHelpState};
180
181pub const FILE_HEADER_HEIGHT: u32 = 2;
182pub const MULTI_BUFFER_EXCERPT_HEADER_HEIGHT: u32 = 1;
183pub const MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT: u32 = 1;
184pub const DEFAULT_MULTIBUFFER_CONTEXT: u32 = 2;
185const CURSOR_BLINK_INTERVAL: Duration = Duration::from_millis(500);
186const MAX_LINE_LEN: usize = 1024;
187const MIN_NAVIGATION_HISTORY_ROW_DELTA: i64 = 10;
188const MAX_SELECTION_HISTORY_LEN: usize = 1024;
189pub(crate) const CURSORS_VISIBLE_FOR: Duration = Duration::from_millis(2000);
190#[doc(hidden)]
191pub const CODE_ACTIONS_DEBOUNCE_TIMEOUT: Duration = Duration::from_millis(250);
192
193pub(crate) const FORMAT_TIMEOUT: Duration = Duration::from_secs(2);
194pub(crate) const SCROLL_CENTER_TOP_BOTTOM_DEBOUNCE_TIMEOUT: Duration = Duration::from_secs(1);
195
196pub fn render_parsed_markdown(
197 element_id: impl Into<ElementId>,
198 parsed: &language::ParsedMarkdown,
199 editor_style: &EditorStyle,
200 workspace: Option<WeakView<Workspace>>,
201 cx: &mut WindowContext,
202) -> InteractiveText {
203 let code_span_background_color = cx
204 .theme()
205 .colors()
206 .editor_document_highlight_read_background;
207
208 let highlights = gpui::combine_highlights(
209 parsed.highlights.iter().filter_map(|(range, highlight)| {
210 let highlight = highlight.to_highlight_style(&editor_style.syntax)?;
211 Some((range.clone(), highlight))
212 }),
213 parsed
214 .regions
215 .iter()
216 .zip(&parsed.region_ranges)
217 .filter_map(|(region, range)| {
218 if region.code {
219 Some((
220 range.clone(),
221 HighlightStyle {
222 background_color: Some(code_span_background_color),
223 ..Default::default()
224 },
225 ))
226 } else {
227 None
228 }
229 }),
230 );
231
232 let mut links = Vec::new();
233 let mut link_ranges = Vec::new();
234 for (range, region) in parsed.region_ranges.iter().zip(&parsed.regions) {
235 if let Some(link) = region.link.clone() {
236 links.push(link);
237 link_ranges.push(range.clone());
238 }
239 }
240
241 InteractiveText::new(
242 element_id,
243 StyledText::new(parsed.text.clone()).with_highlights(&editor_style.text, highlights),
244 )
245 .on_click(link_ranges, move |clicked_range_ix, cx| {
246 match &links[clicked_range_ix] {
247 markdown::Link::Web { url } => cx.open_url(url),
248 markdown::Link::Path { path } => {
249 if let Some(workspace) = &workspace {
250 _ = workspace.update(cx, |workspace, cx| {
251 workspace.open_abs_path(path.clone(), false, cx).detach();
252 });
253 }
254 }
255 }
256 })
257}
258
259#[derive(Clone, Copy, Debug, PartialEq, Eq, PartialOrd, Ord, Hash)]
260pub enum InlayId {
261 InlineCompletion(usize),
262 Hint(usize),
263}
264
265impl InlayId {
266 fn id(&self) -> usize {
267 match self {
268 Self::InlineCompletion(id) => *id,
269 Self::Hint(id) => *id,
270 }
271 }
272}
273
274enum DiffRowHighlight {}
275enum DocumentHighlightRead {}
276enum DocumentHighlightWrite {}
277enum InputComposition {}
278
279#[derive(Debug, Copy, Clone, PartialEq, Eq)]
280pub enum Navigated {
281 Yes,
282 No,
283}
284
285impl Navigated {
286 pub fn from_bool(yes: bool) -> Navigated {
287 if yes {
288 Navigated::Yes
289 } else {
290 Navigated::No
291 }
292 }
293}
294
295pub fn init_settings(cx: &mut AppContext) {
296 EditorSettings::register(cx);
297}
298
299pub fn init(cx: &mut AppContext) {
300 init_settings(cx);
301
302 workspace::register_project_item::<Editor>(cx);
303 workspace::FollowableViewRegistry::register::<Editor>(cx);
304 workspace::register_serializable_item::<Editor>(cx);
305
306 cx.observe_new_views(
307 |workspace: &mut Workspace, _cx: &mut ViewContext<Workspace>| {
308 workspace.register_action(Editor::new_file);
309 workspace.register_action(Editor::new_file_vertical);
310 workspace.register_action(Editor::new_file_horizontal);
311 },
312 )
313 .detach();
314
315 cx.on_action(move |_: &workspace::NewFile, cx| {
316 let app_state = workspace::AppState::global(cx);
317 if let Some(app_state) = app_state.upgrade() {
318 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
319 Editor::new_file(workspace, &Default::default(), cx)
320 })
321 .detach();
322 }
323 });
324 cx.on_action(move |_: &workspace::NewWindow, cx| {
325 let app_state = workspace::AppState::global(cx);
326 if let Some(app_state) = app_state.upgrade() {
327 workspace::open_new(Default::default(), app_state, cx, |workspace, cx| {
328 Editor::new_file(workspace, &Default::default(), cx)
329 })
330 .detach();
331 }
332 });
333 git::project_diff::init(cx);
334}
335
336pub struct SearchWithinRange;
337
338trait InvalidationRegion {
339 fn ranges(&self) -> &[Range<Anchor>];
340}
341
342#[derive(Clone, Debug, PartialEq)]
343pub enum SelectPhase {
344 Begin {
345 position: DisplayPoint,
346 add: bool,
347 click_count: usize,
348 },
349 BeginColumnar {
350 position: DisplayPoint,
351 reset: bool,
352 goal_column: u32,
353 },
354 Extend {
355 position: DisplayPoint,
356 click_count: usize,
357 },
358 Update {
359 position: DisplayPoint,
360 goal_column: u32,
361 scroll_delta: gpui::Point<f32>,
362 },
363 End,
364}
365
366#[derive(Clone, Debug)]
367pub enum SelectMode {
368 Character,
369 Word(Range<Anchor>),
370 Line(Range<Anchor>),
371 All,
372}
373
374#[derive(Copy, Clone, PartialEq, Eq, Debug)]
375pub enum EditorMode {
376 SingleLine { auto_width: bool },
377 AutoHeight { max_lines: usize },
378 Full,
379}
380
381#[derive(Copy, Clone, Debug)]
382pub enum SoftWrap {
383 /// Prefer not to wrap at all.
384 ///
385 /// Note: this is currently internal, as actually limited by [`crate::MAX_LINE_LEN`] until it wraps.
386 /// The mode is used inside git diff hunks, where it's seems currently more useful to not wrap as much as possible.
387 GitDiff,
388 /// Prefer a single line generally, unless an overly long line is encountered.
389 None,
390 /// Soft wrap lines that exceed the editor width.
391 EditorWidth,
392 /// Soft wrap lines at the preferred line length.
393 Column(u32),
394 /// Soft wrap line at the preferred line length or the editor width (whichever is smaller).
395 Bounded(u32),
396}
397
398#[derive(Clone)]
399pub struct EditorStyle {
400 pub background: Hsla,
401 pub local_player: PlayerColor,
402 pub text: TextStyle,
403 pub scrollbar_width: Pixels,
404 pub syntax: Arc<SyntaxTheme>,
405 pub status: StatusColors,
406 pub inlay_hints_style: HighlightStyle,
407 pub inline_completion_styles: InlineCompletionStyles,
408 pub unnecessary_code_fade: f32,
409}
410
411impl Default for EditorStyle {
412 fn default() -> Self {
413 Self {
414 background: Hsla::default(),
415 local_player: PlayerColor::default(),
416 text: TextStyle::default(),
417 scrollbar_width: Pixels::default(),
418 syntax: Default::default(),
419 // HACK: Status colors don't have a real default.
420 // We should look into removing the status colors from the editor
421 // style and retrieve them directly from the theme.
422 status: StatusColors::dark(),
423 inlay_hints_style: HighlightStyle::default(),
424 inline_completion_styles: InlineCompletionStyles {
425 insertion: HighlightStyle::default(),
426 whitespace: HighlightStyle::default(),
427 },
428 unnecessary_code_fade: Default::default(),
429 }
430 }
431}
432
433pub fn make_inlay_hints_style(cx: &WindowContext) -> HighlightStyle {
434 let show_background = language_settings::language_settings(None, None, cx)
435 .inlay_hints
436 .show_background;
437
438 HighlightStyle {
439 color: Some(cx.theme().status().hint),
440 background_color: show_background.then(|| cx.theme().status().hint_background),
441 ..HighlightStyle::default()
442 }
443}
444
445pub fn make_suggestion_styles(cx: &WindowContext) -> InlineCompletionStyles {
446 InlineCompletionStyles {
447 insertion: HighlightStyle {
448 color: Some(cx.theme().status().predictive),
449 ..HighlightStyle::default()
450 },
451 whitespace: HighlightStyle {
452 background_color: Some(cx.theme().status().created_background),
453 ..HighlightStyle::default()
454 },
455 }
456}
457
458type CompletionId = usize;
459
460#[derive(Debug, Clone)]
461enum InlineCompletionMenuHint {
462 Loading,
463 Loaded { text: InlineCompletionText },
464 PendingTermsAcceptance,
465 None,
466}
467
468impl InlineCompletionMenuHint {
469 pub fn label(&self) -> &'static str {
470 match self {
471 InlineCompletionMenuHint::Loading | InlineCompletionMenuHint::Loaded { .. } => {
472 "Edit Prediction"
473 }
474 InlineCompletionMenuHint::PendingTermsAcceptance => "Accept Terms of Service",
475 InlineCompletionMenuHint::None => "No Prediction",
476 }
477 }
478}
479
480#[derive(Clone, Debug)]
481enum InlineCompletionText {
482 Move(SharedString),
483 Edit(HighlightedEdits),
484}
485
486pub(crate) enum EditDisplayMode {
487 TabAccept,
488 DiffPopover,
489 Inline,
490}
491
492enum InlineCompletion {
493 Edit {
494 edits: Vec<(Range<Anchor>, String)>,
495 edit_preview: Option<EditPreview>,
496 display_mode: EditDisplayMode,
497 snapshot: BufferSnapshot,
498 },
499 Move(Anchor),
500}
501
502struct InlineCompletionState {
503 inlay_ids: Vec<InlayId>,
504 completion: InlineCompletion,
505 invalidation_range: Range<Anchor>,
506}
507
508enum InlineCompletionHighlight {}
509
510#[derive(Copy, Clone, Eq, PartialEq, PartialOrd, Ord, Debug, Default)]
511struct EditorActionId(usize);
512
513impl EditorActionId {
514 pub fn post_inc(&mut self) -> Self {
515 let answer = self.0;
516
517 *self = Self(answer + 1);
518
519 Self(answer)
520 }
521}
522
523// type GetFieldEditorTheme = dyn Fn(&theme::Theme) -> theme::FieldEditor;
524// type OverrideTextStyle = dyn Fn(&EditorStyle) -> Option<HighlightStyle>;
525
526type BackgroundHighlight = (fn(&ThemeColors) -> Hsla, Arc<[Range<Anchor>]>);
527type GutterHighlight = (fn(&AppContext) -> Hsla, Arc<[Range<Anchor>]>);
528
529#[derive(Default)]
530struct ScrollbarMarkerState {
531 scrollbar_size: Size<Pixels>,
532 dirty: bool,
533 markers: Arc<[PaintQuad]>,
534 pending_refresh: Option<Task<Result<()>>>,
535}
536
537impl ScrollbarMarkerState {
538 fn should_refresh(&self, scrollbar_size: Size<Pixels>) -> bool {
539 self.pending_refresh.is_none() && (self.scrollbar_size != scrollbar_size || self.dirty)
540 }
541}
542
543#[derive(Clone, Debug)]
544struct RunnableTasks {
545 templates: Vec<(TaskSourceKind, TaskTemplate)>,
546 offset: MultiBufferOffset,
547 // We need the column at which the task context evaluation should take place (when we're spawning it via gutter).
548 column: u32,
549 // Values of all named captures, including those starting with '_'
550 extra_variables: HashMap<String, String>,
551 // Full range of the tagged region. We use it to determine which `extra_variables` to grab for context resolution in e.g. a modal.
552 context_range: Range<BufferOffset>,
553}
554
555impl RunnableTasks {
556 fn resolve<'a>(
557 &'a self,
558 cx: &'a task::TaskContext,
559 ) -> impl Iterator<Item = (TaskSourceKind, ResolvedTask)> + 'a {
560 self.templates.iter().filter_map(|(kind, template)| {
561 template
562 .resolve_task(&kind.to_id_base(), cx)
563 .map(|task| (kind.clone(), task))
564 })
565 }
566}
567
568#[derive(Clone)]
569struct ResolvedTasks {
570 templates: SmallVec<[(TaskSourceKind, ResolvedTask); 1]>,
571 position: Anchor,
572}
573#[derive(Copy, Clone, Debug)]
574struct MultiBufferOffset(usize);
575#[derive(Copy, Clone, Debug, PartialEq, PartialOrd)]
576struct BufferOffset(usize);
577
578// Addons allow storing per-editor state in other crates (e.g. Vim)
579pub trait Addon: 'static {
580 fn extend_key_context(&self, _: &mut KeyContext, _: &AppContext) {}
581
582 fn to_any(&self) -> &dyn std::any::Any;
583}
584
585#[derive(Debug, Copy, Clone, PartialEq, Eq)]
586pub enum IsVimMode {
587 Yes,
588 No,
589}
590
591/// Zed's primary text input `View`, allowing users to edit a [`MultiBuffer`]
592///
593/// See the [module level documentation](self) for more information.
594pub struct Editor {
595 focus_handle: FocusHandle,
596 last_focused_descendant: Option<WeakFocusHandle>,
597 /// The text buffer being edited
598 buffer: Model<MultiBuffer>,
599 /// Map of how text in the buffer should be displayed.
600 /// Handles soft wraps, folds, fake inlay text insertions, etc.
601 pub display_map: Model<DisplayMap>,
602 pub selections: SelectionsCollection,
603 pub scroll_manager: ScrollManager,
604 /// When inline assist editors are linked, they all render cursors because
605 /// typing enters text into each of them, even the ones that aren't focused.
606 pub(crate) show_cursor_when_unfocused: bool,
607 columnar_selection_tail: Option<Anchor>,
608 add_selections_state: Option<AddSelectionsState>,
609 select_next_state: Option<SelectNextState>,
610 select_prev_state: Option<SelectNextState>,
611 selection_history: SelectionHistory,
612 autoclose_regions: Vec<AutocloseRegion>,
613 snippet_stack: InvalidationStack<SnippetState>,
614 select_larger_syntax_node_stack: Vec<Box<[Selection<usize>]>>,
615 ime_transaction: Option<TransactionId>,
616 active_diagnostics: Option<ActiveDiagnosticGroup>,
617 soft_wrap_mode_override: Option<language_settings::SoftWrap>,
618
619 project: Option<Model<Project>>,
620 semantics_provider: Option<Rc<dyn SemanticsProvider>>,
621 completion_provider: Option<Box<dyn CompletionProvider>>,
622 collaboration_hub: Option<Box<dyn CollaborationHub>>,
623 blink_manager: Model<BlinkManager>,
624 show_cursor_names: bool,
625 hovered_cursors: HashMap<HoveredCursor, Task<()>>,
626 pub show_local_selections: bool,
627 mode: EditorMode,
628 show_breadcrumbs: bool,
629 show_gutter: bool,
630 show_scrollbars: bool,
631 show_line_numbers: Option<bool>,
632 use_relative_line_numbers: Option<bool>,
633 show_git_diff_gutter: Option<bool>,
634 show_code_actions: Option<bool>,
635 show_runnables: Option<bool>,
636 show_wrap_guides: Option<bool>,
637 show_indent_guides: Option<bool>,
638 placeholder_text: Option<Arc<str>>,
639 highlight_order: usize,
640 highlighted_rows: HashMap<TypeId, Vec<RowHighlight>>,
641 background_highlights: TreeMap<TypeId, BackgroundHighlight>,
642 gutter_highlights: TreeMap<TypeId, GutterHighlight>,
643 scrollbar_marker_state: ScrollbarMarkerState,
644 active_indent_guides_state: ActiveIndentGuidesState,
645 nav_history: Option<ItemNavHistory>,
646 context_menu: RefCell<Option<CodeContextMenu>>,
647 mouse_context_menu: Option<MouseContextMenu>,
648 hunk_controls_menu_handle: PopoverMenuHandle<ui::ContextMenu>,
649 completion_tasks: Vec<(CompletionId, Task<Option<()>>)>,
650 signature_help_state: SignatureHelpState,
651 auto_signature_help: Option<bool>,
652 find_all_references_task_sources: Vec<Anchor>,
653 next_completion_id: CompletionId,
654 available_code_actions: Option<(Location, Rc<[AvailableCodeAction]>)>,
655 code_actions_task: Option<Task<Result<()>>>,
656 document_highlights_task: Option<Task<()>>,
657 linked_editing_range_task: Option<Task<Option<()>>>,
658 linked_edit_ranges: linked_editing_ranges::LinkedEditingRanges,
659 pending_rename: Option<RenameState>,
660 searchable: bool,
661 cursor_shape: CursorShape,
662 current_line_highlight: Option<CurrentLineHighlight>,
663 collapse_matches: bool,
664 autoindent_mode: Option<AutoindentMode>,
665 workspace: Option<(WeakView<Workspace>, Option<WorkspaceId>)>,
666 input_enabled: bool,
667 use_modal_editing: bool,
668 read_only: bool,
669 leader_peer_id: Option<PeerId>,
670 remote_id: Option<ViewId>,
671 hover_state: HoverState,
672 gutter_hovered: bool,
673 hovered_link_state: Option<HoveredLinkState>,
674 inline_completion_provider: Option<RegisteredInlineCompletionProvider>,
675 code_action_providers: Vec<Rc<dyn CodeActionProvider>>,
676 active_inline_completion: Option<InlineCompletionState>,
677 // enable_inline_completions is a switch that Vim can use to disable
678 // inline completions based on its mode.
679 enable_inline_completions: bool,
680 show_inline_completions_override: Option<bool>,
681 inlay_hint_cache: InlayHintCache,
682 diff_map: DiffMap,
683 next_inlay_id: usize,
684 _subscriptions: Vec<Subscription>,
685 pixel_position_of_newest_cursor: Option<gpui::Point<Pixels>>,
686 gutter_dimensions: GutterDimensions,
687 style: Option<EditorStyle>,
688 text_style_refinement: Option<TextStyleRefinement>,
689 next_editor_action_id: EditorActionId,
690 editor_actions: Rc<RefCell<BTreeMap<EditorActionId, Box<dyn Fn(&mut ViewContext<Self>)>>>>,
691 use_autoclose: bool,
692 use_auto_surround: bool,
693 auto_replace_emoji_shortcode: bool,
694 show_git_blame_gutter: bool,
695 show_git_blame_inline: bool,
696 show_git_blame_inline_delay_task: Option<Task<()>>,
697 git_blame_inline_enabled: bool,
698 serialize_dirty_buffers: bool,
699 show_selection_menu: Option<bool>,
700 blame: Option<Model<GitBlame>>,
701 blame_subscription: Option<Subscription>,
702 custom_context_menu: Option<
703 Box<
704 dyn 'static
705 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
706 >,
707 >,
708 last_bounds: Option<Bounds<Pixels>>,
709 expect_bounds_change: Option<Bounds<Pixels>>,
710 tasks: BTreeMap<(BufferId, BufferRow), RunnableTasks>,
711 tasks_update_task: Option<Task<()>>,
712 previous_search_ranges: Option<Arc<[Range<Anchor>]>>,
713 breadcrumb_header: Option<String>,
714 focused_block: Option<FocusedBlock>,
715 next_scroll_position: NextScrollCursorCenterTopBottom,
716 addons: HashMap<TypeId, Box<dyn Addon>>,
717 registered_buffers: HashMap<BufferId, OpenLspBufferHandle>,
718 selection_mark_mode: bool,
719 toggle_fold_multiple_buffers: Task<()>,
720 _scroll_cursor_center_top_bottom_task: Task<()>,
721}
722
723#[derive(Copy, Clone, Debug, PartialEq, Eq, Default)]
724enum NextScrollCursorCenterTopBottom {
725 #[default]
726 Center,
727 Top,
728 Bottom,
729}
730
731impl NextScrollCursorCenterTopBottom {
732 fn next(&self) -> Self {
733 match self {
734 Self::Center => Self::Top,
735 Self::Top => Self::Bottom,
736 Self::Bottom => Self::Center,
737 }
738 }
739}
740
741#[derive(Clone)]
742pub struct EditorSnapshot {
743 pub mode: EditorMode,
744 show_gutter: bool,
745 show_line_numbers: Option<bool>,
746 show_git_diff_gutter: Option<bool>,
747 show_code_actions: Option<bool>,
748 show_runnables: Option<bool>,
749 git_blame_gutter_max_author_length: Option<usize>,
750 pub display_snapshot: DisplaySnapshot,
751 pub placeholder_text: Option<Arc<str>>,
752 diff_map: DiffMapSnapshot,
753 is_focused: bool,
754 scroll_anchor: ScrollAnchor,
755 ongoing_scroll: OngoingScroll,
756 current_line_highlight: CurrentLineHighlight,
757 gutter_hovered: bool,
758}
759
760const GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED: usize = 20;
761
762#[derive(Default, Debug, Clone, Copy)]
763pub struct GutterDimensions {
764 pub left_padding: Pixels,
765 pub right_padding: Pixels,
766 pub width: Pixels,
767 pub margin: Pixels,
768 pub git_blame_entries_width: Option<Pixels>,
769}
770
771impl GutterDimensions {
772 /// The full width of the space taken up by the gutter.
773 pub fn full_width(&self) -> Pixels {
774 self.margin + self.width
775 }
776
777 /// The width of the space reserved for the fold indicators,
778 /// use alongside 'justify_end' and `gutter_width` to
779 /// right align content with the line numbers
780 pub fn fold_area_width(&self) -> Pixels {
781 self.margin + self.right_padding
782 }
783}
784
785#[derive(Debug)]
786pub struct RemoteSelection {
787 pub replica_id: ReplicaId,
788 pub selection: Selection<Anchor>,
789 pub cursor_shape: CursorShape,
790 pub peer_id: PeerId,
791 pub line_mode: bool,
792 pub participant_index: Option<ParticipantIndex>,
793 pub user_name: Option<SharedString>,
794}
795
796#[derive(Clone, Debug)]
797struct SelectionHistoryEntry {
798 selections: Arc<[Selection<Anchor>]>,
799 select_next_state: Option<SelectNextState>,
800 select_prev_state: Option<SelectNextState>,
801 add_selections_state: Option<AddSelectionsState>,
802}
803
804enum SelectionHistoryMode {
805 Normal,
806 Undoing,
807 Redoing,
808}
809
810#[derive(Clone, PartialEq, Eq, Hash)]
811struct HoveredCursor {
812 replica_id: u16,
813 selection_id: usize,
814}
815
816impl Default for SelectionHistoryMode {
817 fn default() -> Self {
818 Self::Normal
819 }
820}
821
822#[derive(Default)]
823struct SelectionHistory {
824 #[allow(clippy::type_complexity)]
825 selections_by_transaction:
826 HashMap<TransactionId, (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)>,
827 mode: SelectionHistoryMode,
828 undo_stack: VecDeque<SelectionHistoryEntry>,
829 redo_stack: VecDeque<SelectionHistoryEntry>,
830}
831
832impl SelectionHistory {
833 fn insert_transaction(
834 &mut self,
835 transaction_id: TransactionId,
836 selections: Arc<[Selection<Anchor>]>,
837 ) {
838 self.selections_by_transaction
839 .insert(transaction_id, (selections, None));
840 }
841
842 #[allow(clippy::type_complexity)]
843 fn transaction(
844 &self,
845 transaction_id: TransactionId,
846 ) -> Option<&(Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
847 self.selections_by_transaction.get(&transaction_id)
848 }
849
850 #[allow(clippy::type_complexity)]
851 fn transaction_mut(
852 &mut self,
853 transaction_id: TransactionId,
854 ) -> Option<&mut (Arc<[Selection<Anchor>]>, Option<Arc<[Selection<Anchor>]>>)> {
855 self.selections_by_transaction.get_mut(&transaction_id)
856 }
857
858 fn push(&mut self, entry: SelectionHistoryEntry) {
859 if !entry.selections.is_empty() {
860 match self.mode {
861 SelectionHistoryMode::Normal => {
862 self.push_undo(entry);
863 self.redo_stack.clear();
864 }
865 SelectionHistoryMode::Undoing => self.push_redo(entry),
866 SelectionHistoryMode::Redoing => self.push_undo(entry),
867 }
868 }
869 }
870
871 fn push_undo(&mut self, entry: SelectionHistoryEntry) {
872 if self
873 .undo_stack
874 .back()
875 .map_or(true, |e| e.selections != entry.selections)
876 {
877 self.undo_stack.push_back(entry);
878 if self.undo_stack.len() > MAX_SELECTION_HISTORY_LEN {
879 self.undo_stack.pop_front();
880 }
881 }
882 }
883
884 fn push_redo(&mut self, entry: SelectionHistoryEntry) {
885 if self
886 .redo_stack
887 .back()
888 .map_or(true, |e| e.selections != entry.selections)
889 {
890 self.redo_stack.push_back(entry);
891 if self.redo_stack.len() > MAX_SELECTION_HISTORY_LEN {
892 self.redo_stack.pop_front();
893 }
894 }
895 }
896}
897
898struct RowHighlight {
899 index: usize,
900 range: Range<Anchor>,
901 color: Hsla,
902 should_autoscroll: bool,
903}
904
905#[derive(Clone, Debug)]
906struct AddSelectionsState {
907 above: bool,
908 stack: Vec<usize>,
909}
910
911#[derive(Clone)]
912struct SelectNextState {
913 query: AhoCorasick,
914 wordwise: bool,
915 done: bool,
916}
917
918impl std::fmt::Debug for SelectNextState {
919 fn fmt(&self, f: &mut std::fmt::Formatter<'_>) -> std::fmt::Result {
920 f.debug_struct(std::any::type_name::<Self>())
921 .field("wordwise", &self.wordwise)
922 .field("done", &self.done)
923 .finish()
924 }
925}
926
927#[derive(Debug)]
928struct AutocloseRegion {
929 selection_id: usize,
930 range: Range<Anchor>,
931 pair: BracketPair,
932}
933
934#[derive(Debug)]
935struct SnippetState {
936 ranges: Vec<Vec<Range<Anchor>>>,
937 active_index: usize,
938 choices: Vec<Option<Vec<String>>>,
939}
940
941#[doc(hidden)]
942pub struct RenameState {
943 pub range: Range<Anchor>,
944 pub old_name: Arc<str>,
945 pub editor: View<Editor>,
946 block_id: CustomBlockId,
947}
948
949struct InvalidationStack<T>(Vec<T>);
950
951struct RegisteredInlineCompletionProvider {
952 provider: Arc<dyn InlineCompletionProviderHandle>,
953 _subscription: Subscription,
954}
955
956#[derive(Debug)]
957struct ActiveDiagnosticGroup {
958 primary_range: Range<Anchor>,
959 primary_message: String,
960 group_id: usize,
961 blocks: HashMap<CustomBlockId, Diagnostic>,
962 is_valid: bool,
963}
964
965#[derive(Serialize, Deserialize, Clone, Debug)]
966pub struct ClipboardSelection {
967 pub len: usize,
968 pub is_entire_line: bool,
969 pub first_line_indent: u32,
970}
971
972#[derive(Debug)]
973pub(crate) struct NavigationData {
974 cursor_anchor: Anchor,
975 cursor_position: Point,
976 scroll_anchor: ScrollAnchor,
977 scroll_top_row: u32,
978}
979
980#[derive(Debug, Clone, Copy, PartialEq, Eq)]
981pub enum GotoDefinitionKind {
982 Symbol,
983 Declaration,
984 Type,
985 Implementation,
986}
987
988#[derive(Debug, Clone)]
989enum InlayHintRefreshReason {
990 Toggle(bool),
991 SettingsChange(InlayHintSettings),
992 NewLinesShown,
993 BufferEdited(HashSet<Arc<Language>>),
994 RefreshRequested,
995 ExcerptsRemoved(Vec<ExcerptId>),
996}
997
998impl InlayHintRefreshReason {
999 fn description(&self) -> &'static str {
1000 match self {
1001 Self::Toggle(_) => "toggle",
1002 Self::SettingsChange(_) => "settings change",
1003 Self::NewLinesShown => "new lines shown",
1004 Self::BufferEdited(_) => "buffer edited",
1005 Self::RefreshRequested => "refresh requested",
1006 Self::ExcerptsRemoved(_) => "excerpts removed",
1007 }
1008 }
1009}
1010
1011pub enum FormatTarget {
1012 Buffers,
1013 Ranges(Vec<Range<MultiBufferPoint>>),
1014}
1015
1016pub(crate) struct FocusedBlock {
1017 id: BlockId,
1018 focus_handle: WeakFocusHandle,
1019}
1020
1021#[derive(Clone)]
1022enum JumpData {
1023 MultiBufferRow {
1024 row: MultiBufferRow,
1025 line_offset_from_top: u32,
1026 },
1027 MultiBufferPoint {
1028 excerpt_id: ExcerptId,
1029 position: Point,
1030 anchor: text::Anchor,
1031 line_offset_from_top: u32,
1032 },
1033}
1034
1035impl Editor {
1036 pub fn single_line(cx: &mut ViewContext<Self>) -> Self {
1037 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1038 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1039 Self::new(
1040 EditorMode::SingleLine { auto_width: false },
1041 buffer,
1042 None,
1043 false,
1044 cx,
1045 )
1046 }
1047
1048 pub fn multi_line(cx: &mut ViewContext<Self>) -> Self {
1049 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1050 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1051 Self::new(EditorMode::Full, buffer, None, false, cx)
1052 }
1053
1054 pub fn auto_width(cx: &mut ViewContext<Self>) -> Self {
1055 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1056 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1057 Self::new(
1058 EditorMode::SingleLine { auto_width: true },
1059 buffer,
1060 None,
1061 false,
1062 cx,
1063 )
1064 }
1065
1066 pub fn auto_height(max_lines: usize, cx: &mut ViewContext<Self>) -> Self {
1067 let buffer = cx.new_model(|cx| Buffer::local("", cx));
1068 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1069 Self::new(
1070 EditorMode::AutoHeight { max_lines },
1071 buffer,
1072 None,
1073 false,
1074 cx,
1075 )
1076 }
1077
1078 pub fn for_buffer(
1079 buffer: Model<Buffer>,
1080 project: Option<Model<Project>>,
1081 cx: &mut ViewContext<Self>,
1082 ) -> Self {
1083 let buffer = cx.new_model(|cx| MultiBuffer::singleton(buffer, cx));
1084 Self::new(EditorMode::Full, buffer, project, false, cx)
1085 }
1086
1087 pub fn for_multibuffer(
1088 buffer: Model<MultiBuffer>,
1089 project: Option<Model<Project>>,
1090 show_excerpt_controls: bool,
1091 cx: &mut ViewContext<Self>,
1092 ) -> Self {
1093 Self::new(EditorMode::Full, buffer, project, show_excerpt_controls, cx)
1094 }
1095
1096 pub fn clone(&self, cx: &mut ViewContext<Self>) -> Self {
1097 let show_excerpt_controls = self.display_map.read(cx).show_excerpt_controls();
1098 let mut clone = Self::new(
1099 self.mode,
1100 self.buffer.clone(),
1101 self.project.clone(),
1102 show_excerpt_controls,
1103 cx,
1104 );
1105 self.display_map.update(cx, |display_map, cx| {
1106 let snapshot = display_map.snapshot(cx);
1107 clone.display_map.update(cx, |display_map, cx| {
1108 display_map.set_state(&snapshot, cx);
1109 });
1110 });
1111 clone.selections.clone_state(&self.selections);
1112 clone.scroll_manager.clone_state(&self.scroll_manager);
1113 clone.searchable = self.searchable;
1114 clone
1115 }
1116
1117 pub fn new(
1118 mode: EditorMode,
1119 buffer: Model<MultiBuffer>,
1120 project: Option<Model<Project>>,
1121 show_excerpt_controls: bool,
1122 cx: &mut ViewContext<Self>,
1123 ) -> Self {
1124 let style = cx.text_style();
1125 let font_size = style.font_size.to_pixels(cx.rem_size());
1126 let editor = cx.view().downgrade();
1127 let fold_placeholder = FoldPlaceholder {
1128 constrain_width: true,
1129 render: Arc::new(move |fold_id, fold_range, cx| {
1130 let editor = editor.clone();
1131 div()
1132 .id(fold_id)
1133 .bg(cx.theme().colors().ghost_element_background)
1134 .hover(|style| style.bg(cx.theme().colors().ghost_element_hover))
1135 .active(|style| style.bg(cx.theme().colors().ghost_element_active))
1136 .rounded_sm()
1137 .size_full()
1138 .cursor_pointer()
1139 .child("⋯")
1140 .on_mouse_down(MouseButton::Left, |_, cx| cx.stop_propagation())
1141 .on_click(move |_, cx| {
1142 editor
1143 .update(cx, |editor, cx| {
1144 editor.unfold_ranges(
1145 &[fold_range.start..fold_range.end],
1146 true,
1147 false,
1148 cx,
1149 );
1150 cx.stop_propagation();
1151 })
1152 .ok();
1153 })
1154 .into_any()
1155 }),
1156 merge_adjacent: true,
1157 ..Default::default()
1158 };
1159 let display_map = cx.new_model(|cx| {
1160 DisplayMap::new(
1161 buffer.clone(),
1162 style.font(),
1163 font_size,
1164 None,
1165 show_excerpt_controls,
1166 FILE_HEADER_HEIGHT,
1167 MULTI_BUFFER_EXCERPT_HEADER_HEIGHT,
1168 MULTI_BUFFER_EXCERPT_FOOTER_HEIGHT,
1169 fold_placeholder,
1170 cx,
1171 )
1172 });
1173
1174 let selections = SelectionsCollection::new(display_map.clone(), buffer.clone());
1175
1176 let blink_manager = cx.new_model(|cx| BlinkManager::new(CURSOR_BLINK_INTERVAL, cx));
1177
1178 let soft_wrap_mode_override = matches!(mode, EditorMode::SingleLine { .. })
1179 .then(|| language_settings::SoftWrap::None);
1180
1181 let mut project_subscriptions = Vec::new();
1182 if mode == EditorMode::Full {
1183 if let Some(project) = project.as_ref() {
1184 if buffer.read(cx).is_singleton() {
1185 project_subscriptions.push(cx.observe(project, |_, _, cx| {
1186 cx.emit(EditorEvent::TitleChanged);
1187 }));
1188 }
1189 project_subscriptions.push(cx.subscribe(project, |editor, _, event, cx| {
1190 if let project::Event::RefreshInlayHints = event {
1191 editor.refresh_inlay_hints(InlayHintRefreshReason::RefreshRequested, cx);
1192 } else if let project::Event::SnippetEdit(id, snippet_edits) = event {
1193 if let Some(buffer) = editor.buffer.read(cx).buffer(*id) {
1194 let focus_handle = editor.focus_handle(cx);
1195 if focus_handle.is_focused(cx) {
1196 let snapshot = buffer.read(cx).snapshot();
1197 for (range, snippet) in snippet_edits {
1198 let editor_range =
1199 language::range_from_lsp(*range).to_offset(&snapshot);
1200 editor
1201 .insert_snippet(&[editor_range], snippet.clone(), cx)
1202 .ok();
1203 }
1204 }
1205 }
1206 }
1207 }));
1208 if let Some(task_inventory) = project
1209 .read(cx)
1210 .task_store()
1211 .read(cx)
1212 .task_inventory()
1213 .cloned()
1214 {
1215 project_subscriptions.push(cx.observe(&task_inventory, |editor, _, cx| {
1216 editor.tasks_update_task = Some(editor.refresh_runnables(cx));
1217 }));
1218 }
1219 }
1220 }
1221
1222 let buffer_snapshot = buffer.read(cx).snapshot(cx);
1223
1224 let inlay_hint_settings =
1225 inlay_hint_settings(selections.newest_anchor().head(), &buffer_snapshot, cx);
1226 let focus_handle = cx.focus_handle();
1227 cx.on_focus(&focus_handle, Self::handle_focus).detach();
1228 cx.on_focus_in(&focus_handle, Self::handle_focus_in)
1229 .detach();
1230 cx.on_focus_out(&focus_handle, Self::handle_focus_out)
1231 .detach();
1232 cx.on_blur(&focus_handle, Self::handle_blur).detach();
1233
1234 let show_indent_guides = if matches!(mode, EditorMode::SingleLine { .. }) {
1235 Some(false)
1236 } else {
1237 None
1238 };
1239
1240 let mut code_action_providers = Vec::new();
1241 if let Some(project) = project.clone() {
1242 get_unstaged_changes_for_buffers(&project, buffer.read(cx).all_buffers(), cx);
1243 code_action_providers.push(Rc::new(project) as Rc<_>);
1244 }
1245
1246 let mut this = Self {
1247 focus_handle,
1248 show_cursor_when_unfocused: false,
1249 last_focused_descendant: None,
1250 buffer: buffer.clone(),
1251 display_map: display_map.clone(),
1252 selections,
1253 scroll_manager: ScrollManager::new(cx),
1254 columnar_selection_tail: None,
1255 add_selections_state: None,
1256 select_next_state: None,
1257 select_prev_state: None,
1258 selection_history: Default::default(),
1259 autoclose_regions: Default::default(),
1260 snippet_stack: Default::default(),
1261 select_larger_syntax_node_stack: Vec::new(),
1262 ime_transaction: Default::default(),
1263 active_diagnostics: None,
1264 soft_wrap_mode_override,
1265 completion_provider: project.clone().map(|project| Box::new(project) as _),
1266 semantics_provider: project.clone().map(|project| Rc::new(project) as _),
1267 collaboration_hub: project.clone().map(|project| Box::new(project) as _),
1268 project,
1269 blink_manager: blink_manager.clone(),
1270 show_local_selections: true,
1271 show_scrollbars: true,
1272 mode,
1273 show_breadcrumbs: EditorSettings::get_global(cx).toolbar.breadcrumbs,
1274 show_gutter: mode == EditorMode::Full,
1275 show_line_numbers: None,
1276 use_relative_line_numbers: None,
1277 show_git_diff_gutter: None,
1278 show_code_actions: None,
1279 show_runnables: None,
1280 show_wrap_guides: None,
1281 show_indent_guides,
1282 placeholder_text: None,
1283 highlight_order: 0,
1284 highlighted_rows: HashMap::default(),
1285 background_highlights: Default::default(),
1286 gutter_highlights: TreeMap::default(),
1287 scrollbar_marker_state: ScrollbarMarkerState::default(),
1288 active_indent_guides_state: ActiveIndentGuidesState::default(),
1289 nav_history: None,
1290 context_menu: RefCell::new(None),
1291 mouse_context_menu: None,
1292 hunk_controls_menu_handle: PopoverMenuHandle::default(),
1293 completion_tasks: Default::default(),
1294 signature_help_state: SignatureHelpState::default(),
1295 auto_signature_help: None,
1296 find_all_references_task_sources: Vec::new(),
1297 next_completion_id: 0,
1298 next_inlay_id: 0,
1299 code_action_providers,
1300 available_code_actions: Default::default(),
1301 code_actions_task: Default::default(),
1302 document_highlights_task: Default::default(),
1303 linked_editing_range_task: Default::default(),
1304 pending_rename: Default::default(),
1305 searchable: true,
1306 cursor_shape: EditorSettings::get_global(cx)
1307 .cursor_shape
1308 .unwrap_or_default(),
1309 current_line_highlight: None,
1310 autoindent_mode: Some(AutoindentMode::EachLine),
1311 collapse_matches: false,
1312 workspace: None,
1313 input_enabled: true,
1314 use_modal_editing: mode == EditorMode::Full,
1315 read_only: false,
1316 use_autoclose: true,
1317 use_auto_surround: true,
1318 auto_replace_emoji_shortcode: false,
1319 leader_peer_id: None,
1320 remote_id: None,
1321 hover_state: Default::default(),
1322 hovered_link_state: Default::default(),
1323 inline_completion_provider: None,
1324 active_inline_completion: None,
1325 inlay_hint_cache: InlayHintCache::new(inlay_hint_settings),
1326 diff_map: DiffMap::default(),
1327 gutter_hovered: false,
1328 pixel_position_of_newest_cursor: None,
1329 last_bounds: None,
1330 expect_bounds_change: None,
1331 gutter_dimensions: GutterDimensions::default(),
1332 style: None,
1333 show_cursor_names: false,
1334 hovered_cursors: Default::default(),
1335 next_editor_action_id: EditorActionId::default(),
1336 editor_actions: Rc::default(),
1337 show_inline_completions_override: None,
1338 enable_inline_completions: true,
1339 custom_context_menu: None,
1340 show_git_blame_gutter: false,
1341 show_git_blame_inline: false,
1342 show_selection_menu: None,
1343 show_git_blame_inline_delay_task: None,
1344 git_blame_inline_enabled: ProjectSettings::get_global(cx).git.inline_blame_enabled(),
1345 serialize_dirty_buffers: ProjectSettings::get_global(cx)
1346 .session
1347 .restore_unsaved_buffers,
1348 blame: None,
1349 blame_subscription: None,
1350 tasks: Default::default(),
1351 _subscriptions: vec![
1352 cx.observe(&buffer, Self::on_buffer_changed),
1353 cx.subscribe(&buffer, Self::on_buffer_event),
1354 cx.observe(&display_map, Self::on_display_map_changed),
1355 cx.observe(&blink_manager, |_, _, cx| cx.notify()),
1356 cx.observe_global::<SettingsStore>(Self::settings_changed),
1357 cx.observe_window_activation(|editor, cx| {
1358 let active = cx.is_window_active();
1359 editor.blink_manager.update(cx, |blink_manager, cx| {
1360 if active {
1361 blink_manager.enable(cx);
1362 } else {
1363 blink_manager.disable(cx);
1364 }
1365 });
1366 }),
1367 ],
1368 tasks_update_task: None,
1369 linked_edit_ranges: Default::default(),
1370 previous_search_ranges: None,
1371 breadcrumb_header: None,
1372 focused_block: None,
1373 next_scroll_position: NextScrollCursorCenterTopBottom::default(),
1374 addons: HashMap::default(),
1375 registered_buffers: HashMap::default(),
1376 _scroll_cursor_center_top_bottom_task: Task::ready(()),
1377 selection_mark_mode: false,
1378 toggle_fold_multiple_buffers: Task::ready(()),
1379 text_style_refinement: None,
1380 };
1381 this.tasks_update_task = Some(this.refresh_runnables(cx));
1382 this._subscriptions.extend(project_subscriptions);
1383
1384 this.end_selection(cx);
1385 this.scroll_manager.show_scrollbar(cx);
1386
1387 if mode == EditorMode::Full {
1388 let should_auto_hide_scrollbars = cx.should_auto_hide_scrollbars();
1389 cx.set_global(ScrollbarAutoHide(should_auto_hide_scrollbars));
1390
1391 if this.git_blame_inline_enabled {
1392 this.git_blame_inline_enabled = true;
1393 this.start_git_blame_inline(false, cx);
1394 }
1395
1396 if let Some(buffer) = buffer.read(cx).as_singleton() {
1397 if let Some(project) = this.project.as_ref() {
1398 let lsp_store = project.read(cx).lsp_store();
1399 let handle = lsp_store.update(cx, |lsp_store, cx| {
1400 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1401 });
1402 this.registered_buffers
1403 .insert(buffer.read(cx).remote_id(), handle);
1404 }
1405 }
1406 }
1407
1408 this.report_editor_event("Editor Opened", None, cx);
1409 this
1410 }
1411
1412 pub fn mouse_menu_is_focused(&self, cx: &WindowContext) -> bool {
1413 self.mouse_context_menu
1414 .as_ref()
1415 .is_some_and(|menu| menu.context_menu.focus_handle(cx).is_focused(cx))
1416 }
1417
1418 fn key_context(&self, cx: &ViewContext<Self>) -> KeyContext {
1419 let mut key_context = KeyContext::new_with_defaults();
1420 key_context.add("Editor");
1421 let mode = match self.mode {
1422 EditorMode::SingleLine { .. } => "single_line",
1423 EditorMode::AutoHeight { .. } => "auto_height",
1424 EditorMode::Full => "full",
1425 };
1426
1427 if EditorSettings::jupyter_enabled(cx) {
1428 key_context.add("jupyter");
1429 }
1430
1431 key_context.set("mode", mode);
1432 if self.pending_rename.is_some() {
1433 key_context.add("renaming");
1434 }
1435 match self.context_menu.borrow().as_ref() {
1436 Some(CodeContextMenu::Completions(_)) => {
1437 key_context.add("menu");
1438 key_context.add("showing_completions")
1439 }
1440 Some(CodeContextMenu::CodeActions(_)) => {
1441 key_context.add("menu");
1442 key_context.add("showing_code_actions")
1443 }
1444 None => {}
1445 }
1446
1447 // Disable vim contexts when a sub-editor (e.g. rename/inline assistant) is focused.
1448 if !self.focus_handle(cx).contains_focused(cx)
1449 || (self.is_focused(cx) || self.mouse_menu_is_focused(cx))
1450 {
1451 for addon in self.addons.values() {
1452 addon.extend_key_context(&mut key_context, cx)
1453 }
1454 }
1455
1456 if let Some(extension) = self
1457 .buffer
1458 .read(cx)
1459 .as_singleton()
1460 .and_then(|buffer| buffer.read(cx).file()?.path().extension()?.to_str())
1461 {
1462 key_context.set("extension", extension.to_string());
1463 }
1464
1465 if self.has_active_inline_completion() {
1466 key_context.add("copilot_suggestion");
1467 key_context.add("inline_completion");
1468 }
1469
1470 if self.selection_mark_mode {
1471 key_context.add("selection_mode");
1472 }
1473
1474 key_context
1475 }
1476
1477 pub fn new_file(
1478 workspace: &mut Workspace,
1479 _: &workspace::NewFile,
1480 cx: &mut ViewContext<Workspace>,
1481 ) {
1482 Self::new_in_workspace(workspace, cx).detach_and_prompt_err(
1483 "Failed to create buffer",
1484 cx,
1485 |e, _| match e.error_code() {
1486 ErrorCode::RemoteUpgradeRequired => Some(format!(
1487 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1488 e.error_tag("required").unwrap_or("the latest version")
1489 )),
1490 _ => None,
1491 },
1492 );
1493 }
1494
1495 pub fn new_in_workspace(
1496 workspace: &mut Workspace,
1497 cx: &mut ViewContext<Workspace>,
1498 ) -> Task<Result<View<Editor>>> {
1499 let project = workspace.project().clone();
1500 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1501
1502 cx.spawn(|workspace, mut cx| async move {
1503 let buffer = create.await?;
1504 workspace.update(&mut cx, |workspace, cx| {
1505 let editor =
1506 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx));
1507 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
1508 editor
1509 })
1510 })
1511 }
1512
1513 fn new_file_vertical(
1514 workspace: &mut Workspace,
1515 _: &workspace::NewFileSplitVertical,
1516 cx: &mut ViewContext<Workspace>,
1517 ) {
1518 Self::new_file_in_direction(workspace, SplitDirection::vertical(cx), cx)
1519 }
1520
1521 fn new_file_horizontal(
1522 workspace: &mut Workspace,
1523 _: &workspace::NewFileSplitHorizontal,
1524 cx: &mut ViewContext<Workspace>,
1525 ) {
1526 Self::new_file_in_direction(workspace, SplitDirection::horizontal(cx), cx)
1527 }
1528
1529 fn new_file_in_direction(
1530 workspace: &mut Workspace,
1531 direction: SplitDirection,
1532 cx: &mut ViewContext<Workspace>,
1533 ) {
1534 let project = workspace.project().clone();
1535 let create = project.update(cx, |project, cx| project.create_buffer(cx));
1536
1537 cx.spawn(|workspace, mut cx| async move {
1538 let buffer = create.await?;
1539 workspace.update(&mut cx, move |workspace, cx| {
1540 workspace.split_item(
1541 direction,
1542 Box::new(
1543 cx.new_view(|cx| Editor::for_buffer(buffer, Some(project.clone()), cx)),
1544 ),
1545 cx,
1546 )
1547 })?;
1548 anyhow::Ok(())
1549 })
1550 .detach_and_prompt_err("Failed to create buffer", cx, |e, _| match e.error_code() {
1551 ErrorCode::RemoteUpgradeRequired => Some(format!(
1552 "The remote instance of Zed does not support this yet. It must be upgraded to {}",
1553 e.error_tag("required").unwrap_or("the latest version")
1554 )),
1555 _ => None,
1556 });
1557 }
1558
1559 pub fn leader_peer_id(&self) -> Option<PeerId> {
1560 self.leader_peer_id
1561 }
1562
1563 pub fn buffer(&self) -> &Model<MultiBuffer> {
1564 &self.buffer
1565 }
1566
1567 pub fn workspace(&self) -> Option<View<Workspace>> {
1568 self.workspace.as_ref()?.0.upgrade()
1569 }
1570
1571 pub fn title<'a>(&self, cx: &'a AppContext) -> Cow<'a, str> {
1572 self.buffer().read(cx).title(cx)
1573 }
1574
1575 pub fn snapshot(&mut self, cx: &mut WindowContext) -> EditorSnapshot {
1576 let git_blame_gutter_max_author_length = self
1577 .render_git_blame_gutter(cx)
1578 .then(|| {
1579 if let Some(blame) = self.blame.as_ref() {
1580 let max_author_length =
1581 blame.update(cx, |blame, cx| blame.max_author_length(cx));
1582 Some(max_author_length)
1583 } else {
1584 None
1585 }
1586 })
1587 .flatten();
1588
1589 EditorSnapshot {
1590 mode: self.mode,
1591 show_gutter: self.show_gutter,
1592 show_line_numbers: self.show_line_numbers,
1593 show_git_diff_gutter: self.show_git_diff_gutter,
1594 show_code_actions: self.show_code_actions,
1595 show_runnables: self.show_runnables,
1596 git_blame_gutter_max_author_length,
1597 display_snapshot: self.display_map.update(cx, |map, cx| map.snapshot(cx)),
1598 scroll_anchor: self.scroll_manager.anchor(),
1599 ongoing_scroll: self.scroll_manager.ongoing_scroll(),
1600 placeholder_text: self.placeholder_text.clone(),
1601 diff_map: self.diff_map.snapshot(),
1602 is_focused: self.focus_handle.is_focused(cx),
1603 current_line_highlight: self
1604 .current_line_highlight
1605 .unwrap_or_else(|| EditorSettings::get_global(cx).current_line_highlight),
1606 gutter_hovered: self.gutter_hovered,
1607 }
1608 }
1609
1610 pub fn language_at<T: ToOffset>(&self, point: T, cx: &AppContext) -> Option<Arc<Language>> {
1611 self.buffer.read(cx).language_at(point, cx)
1612 }
1613
1614 pub fn file_at<T: ToOffset>(
1615 &self,
1616 point: T,
1617 cx: &AppContext,
1618 ) -> Option<Arc<dyn language::File>> {
1619 self.buffer.read(cx).read(cx).file_at(point).cloned()
1620 }
1621
1622 pub fn active_excerpt(
1623 &self,
1624 cx: &AppContext,
1625 ) -> Option<(ExcerptId, Model<Buffer>, Range<text::Anchor>)> {
1626 self.buffer
1627 .read(cx)
1628 .excerpt_containing(self.selections.newest_anchor().head(), cx)
1629 }
1630
1631 pub fn mode(&self) -> EditorMode {
1632 self.mode
1633 }
1634
1635 pub fn collaboration_hub(&self) -> Option<&dyn CollaborationHub> {
1636 self.collaboration_hub.as_deref()
1637 }
1638
1639 pub fn set_collaboration_hub(&mut self, hub: Box<dyn CollaborationHub>) {
1640 self.collaboration_hub = Some(hub);
1641 }
1642
1643 pub fn set_custom_context_menu(
1644 &mut self,
1645 f: impl 'static
1646 + Fn(&mut Self, DisplayPoint, &mut ViewContext<Self>) -> Option<View<ui::ContextMenu>>,
1647 ) {
1648 self.custom_context_menu = Some(Box::new(f))
1649 }
1650
1651 pub fn set_completion_provider(&mut self, provider: Option<Box<dyn CompletionProvider>>) {
1652 self.completion_provider = provider;
1653 }
1654
1655 pub fn semantics_provider(&self) -> Option<Rc<dyn SemanticsProvider>> {
1656 self.semantics_provider.clone()
1657 }
1658
1659 pub fn set_semantics_provider(&mut self, provider: Option<Rc<dyn SemanticsProvider>>) {
1660 self.semantics_provider = provider;
1661 }
1662
1663 pub fn set_inline_completion_provider<T>(
1664 &mut self,
1665 provider: Option<Model<T>>,
1666 cx: &mut ViewContext<Self>,
1667 ) where
1668 T: InlineCompletionProvider,
1669 {
1670 self.inline_completion_provider =
1671 provider.map(|provider| RegisteredInlineCompletionProvider {
1672 _subscription: cx.observe(&provider, |this, _, cx| {
1673 if this.focus_handle.is_focused(cx) {
1674 this.update_visible_inline_completion(cx);
1675 }
1676 }),
1677 provider: Arc::new(provider),
1678 });
1679 self.refresh_inline_completion(false, false, cx);
1680 }
1681
1682 pub fn placeholder_text(&self, _cx: &WindowContext) -> Option<&str> {
1683 self.placeholder_text.as_deref()
1684 }
1685
1686 pub fn set_placeholder_text(
1687 &mut self,
1688 placeholder_text: impl Into<Arc<str>>,
1689 cx: &mut ViewContext<Self>,
1690 ) {
1691 let placeholder_text = Some(placeholder_text.into());
1692 if self.placeholder_text != placeholder_text {
1693 self.placeholder_text = placeholder_text;
1694 cx.notify();
1695 }
1696 }
1697
1698 pub fn set_cursor_shape(&mut self, cursor_shape: CursorShape, cx: &mut ViewContext<Self>) {
1699 self.cursor_shape = cursor_shape;
1700
1701 // Disrupt blink for immediate user feedback that the cursor shape has changed
1702 self.blink_manager.update(cx, BlinkManager::show_cursor);
1703
1704 cx.notify();
1705 }
1706
1707 pub fn set_current_line_highlight(
1708 &mut self,
1709 current_line_highlight: Option<CurrentLineHighlight>,
1710 ) {
1711 self.current_line_highlight = current_line_highlight;
1712 }
1713
1714 pub fn set_collapse_matches(&mut self, collapse_matches: bool) {
1715 self.collapse_matches = collapse_matches;
1716 }
1717
1718 pub fn register_buffers_with_language_servers(&mut self, cx: &mut ViewContext<Self>) {
1719 let buffers = self.buffer.read(cx).all_buffers();
1720 let Some(lsp_store) = self.lsp_store(cx) else {
1721 return;
1722 };
1723 lsp_store.update(cx, |lsp_store, cx| {
1724 for buffer in buffers {
1725 self.registered_buffers
1726 .entry(buffer.read(cx).remote_id())
1727 .or_insert_with(|| {
1728 lsp_store.register_buffer_with_language_servers(&buffer, cx)
1729 });
1730 }
1731 })
1732 }
1733
1734 pub fn range_for_match<T: std::marker::Copy>(&self, range: &Range<T>) -> Range<T> {
1735 if self.collapse_matches {
1736 return range.start..range.start;
1737 }
1738 range.clone()
1739 }
1740
1741 pub fn set_clip_at_line_ends(&mut self, clip: bool, cx: &mut ViewContext<Self>) {
1742 if self.display_map.read(cx).clip_at_line_ends != clip {
1743 self.display_map
1744 .update(cx, |map, _| map.clip_at_line_ends = clip);
1745 }
1746 }
1747
1748 pub fn set_input_enabled(&mut self, input_enabled: bool) {
1749 self.input_enabled = input_enabled;
1750 }
1751
1752 pub fn set_inline_completions_enabled(&mut self, enabled: bool, cx: &mut ViewContext<Self>) {
1753 self.enable_inline_completions = enabled;
1754 if !self.enable_inline_completions {
1755 self.take_active_inline_completion(cx);
1756 cx.notify();
1757 }
1758 }
1759
1760 pub fn set_autoindent(&mut self, autoindent: bool) {
1761 if autoindent {
1762 self.autoindent_mode = Some(AutoindentMode::EachLine);
1763 } else {
1764 self.autoindent_mode = None;
1765 }
1766 }
1767
1768 pub fn read_only(&self, cx: &AppContext) -> bool {
1769 self.read_only || self.buffer.read(cx).read_only()
1770 }
1771
1772 pub fn set_read_only(&mut self, read_only: bool) {
1773 self.read_only = read_only;
1774 }
1775
1776 pub fn set_use_autoclose(&mut self, autoclose: bool) {
1777 self.use_autoclose = autoclose;
1778 }
1779
1780 pub fn set_use_auto_surround(&mut self, auto_surround: bool) {
1781 self.use_auto_surround = auto_surround;
1782 }
1783
1784 pub fn set_auto_replace_emoji_shortcode(&mut self, auto_replace: bool) {
1785 self.auto_replace_emoji_shortcode = auto_replace;
1786 }
1787
1788 pub fn toggle_inline_completions(
1789 &mut self,
1790 _: &ToggleInlineCompletions,
1791 cx: &mut ViewContext<Self>,
1792 ) {
1793 if self.show_inline_completions_override.is_some() {
1794 self.set_show_inline_completions(None, cx);
1795 } else {
1796 let cursor = self.selections.newest_anchor().head();
1797 if let Some((buffer, cursor_buffer_position)) =
1798 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1799 {
1800 let show_inline_completions =
1801 !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx);
1802 self.set_show_inline_completions(Some(show_inline_completions), cx);
1803 }
1804 }
1805 }
1806
1807 pub fn set_show_inline_completions(
1808 &mut self,
1809 show_inline_completions: Option<bool>,
1810 cx: &mut ViewContext<Self>,
1811 ) {
1812 self.show_inline_completions_override = show_inline_completions;
1813 self.refresh_inline_completion(false, true, cx);
1814 }
1815
1816 pub fn inline_completions_enabled(&self, cx: &AppContext) -> bool {
1817 let cursor = self.selections.newest_anchor().head();
1818 if let Some((buffer, buffer_position)) =
1819 self.buffer.read(cx).text_anchor_for_position(cursor, cx)
1820 {
1821 self.should_show_inline_completions(&buffer, buffer_position, cx)
1822 } else {
1823 false
1824 }
1825 }
1826
1827 fn should_show_inline_completions(
1828 &self,
1829 buffer: &Model<Buffer>,
1830 buffer_position: language::Anchor,
1831 cx: &AppContext,
1832 ) -> bool {
1833 if !self.snippet_stack.is_empty() {
1834 return false;
1835 }
1836
1837 if self.inline_completions_disabled_in_scope(buffer, buffer_position, cx) {
1838 return false;
1839 }
1840
1841 if let Some(provider) = self.inline_completion_provider() {
1842 if let Some(show_inline_completions) = self.show_inline_completions_override {
1843 show_inline_completions
1844 } else {
1845 self.mode == EditorMode::Full && provider.is_enabled(buffer, buffer_position, cx)
1846 }
1847 } else {
1848 false
1849 }
1850 }
1851
1852 fn inline_completions_disabled_in_scope(
1853 &self,
1854 buffer: &Model<Buffer>,
1855 buffer_position: language::Anchor,
1856 cx: &AppContext,
1857 ) -> bool {
1858 let snapshot = buffer.read(cx).snapshot();
1859 let settings = snapshot.settings_at(buffer_position, cx);
1860
1861 let Some(scope) = snapshot.language_scope_at(buffer_position) else {
1862 return false;
1863 };
1864
1865 scope.override_name().map_or(false, |scope_name| {
1866 settings
1867 .inline_completions_disabled_in
1868 .iter()
1869 .any(|s| s == scope_name)
1870 })
1871 }
1872
1873 pub fn set_use_modal_editing(&mut self, to: bool) {
1874 self.use_modal_editing = to;
1875 }
1876
1877 pub fn use_modal_editing(&self) -> bool {
1878 self.use_modal_editing
1879 }
1880
1881 fn selections_did_change(
1882 &mut self,
1883 local: bool,
1884 old_cursor_position: &Anchor,
1885 show_completions: bool,
1886 cx: &mut ViewContext<Self>,
1887 ) {
1888 cx.invalidate_character_coordinates();
1889
1890 // Copy selections to primary selection buffer
1891 #[cfg(any(target_os = "linux", target_os = "freebsd"))]
1892 if local {
1893 let selections = self.selections.all::<usize>(cx);
1894 let buffer_handle = self.buffer.read(cx).read(cx);
1895
1896 let mut text = String::new();
1897 for (index, selection) in selections.iter().enumerate() {
1898 let text_for_selection = buffer_handle
1899 .text_for_range(selection.start..selection.end)
1900 .collect::<String>();
1901
1902 text.push_str(&text_for_selection);
1903 if index != selections.len() - 1 {
1904 text.push('\n');
1905 }
1906 }
1907
1908 if !text.is_empty() {
1909 cx.write_to_primary(ClipboardItem::new_string(text));
1910 }
1911 }
1912
1913 if self.focus_handle.is_focused(cx) && self.leader_peer_id.is_none() {
1914 self.buffer.update(cx, |buffer, cx| {
1915 buffer.set_active_selections(
1916 &self.selections.disjoint_anchors(),
1917 self.selections.line_mode,
1918 self.cursor_shape,
1919 cx,
1920 )
1921 });
1922 }
1923 let display_map = self
1924 .display_map
1925 .update(cx, |display_map, cx| display_map.snapshot(cx));
1926 let buffer = &display_map.buffer_snapshot;
1927 self.add_selections_state = None;
1928 self.select_next_state = None;
1929 self.select_prev_state = None;
1930 self.select_larger_syntax_node_stack.clear();
1931 self.invalidate_autoclose_regions(&self.selections.disjoint_anchors(), buffer);
1932 self.snippet_stack
1933 .invalidate(&self.selections.disjoint_anchors(), buffer);
1934 self.take_rename(false, cx);
1935
1936 let new_cursor_position = self.selections.newest_anchor().head();
1937
1938 self.push_to_nav_history(
1939 *old_cursor_position,
1940 Some(new_cursor_position.to_point(buffer)),
1941 cx,
1942 );
1943
1944 if local {
1945 let new_cursor_position = self.selections.newest_anchor().head();
1946 let mut context_menu = self.context_menu.borrow_mut();
1947 let completion_menu = match context_menu.as_ref() {
1948 Some(CodeContextMenu::Completions(menu)) => Some(menu),
1949 _ => {
1950 *context_menu = None;
1951 None
1952 }
1953 };
1954
1955 if let Some(completion_menu) = completion_menu {
1956 let cursor_position = new_cursor_position.to_offset(buffer);
1957 let (word_range, kind) =
1958 buffer.surrounding_word(completion_menu.initial_position, true);
1959 if kind == Some(CharKind::Word)
1960 && word_range.to_inclusive().contains(&cursor_position)
1961 {
1962 let mut completion_menu = completion_menu.clone();
1963 drop(context_menu);
1964
1965 let query = Self::completion_query(buffer, cursor_position);
1966 cx.spawn(move |this, mut cx| async move {
1967 completion_menu
1968 .filter(query.as_deref(), cx.background_executor().clone())
1969 .await;
1970
1971 this.update(&mut cx, |this, cx| {
1972 let mut context_menu = this.context_menu.borrow_mut();
1973 let Some(CodeContextMenu::Completions(menu)) = context_menu.as_ref()
1974 else {
1975 return;
1976 };
1977
1978 if menu.id > completion_menu.id {
1979 return;
1980 }
1981
1982 *context_menu = Some(CodeContextMenu::Completions(completion_menu));
1983 drop(context_menu);
1984 cx.notify();
1985 })
1986 })
1987 .detach();
1988
1989 if show_completions {
1990 self.show_completions(&ShowCompletions { trigger: None }, cx);
1991 }
1992 } else {
1993 drop(context_menu);
1994 self.hide_context_menu(cx);
1995 }
1996 } else {
1997 drop(context_menu);
1998 }
1999
2000 hide_hover(self, cx);
2001
2002 if old_cursor_position.to_display_point(&display_map).row()
2003 != new_cursor_position.to_display_point(&display_map).row()
2004 {
2005 self.available_code_actions.take();
2006 }
2007 self.refresh_code_actions(cx);
2008 self.refresh_document_highlights(cx);
2009 refresh_matching_bracket_highlights(self, cx);
2010 self.update_visible_inline_completion(cx);
2011 linked_editing_ranges::refresh_linked_ranges(self, cx);
2012 if self.git_blame_inline_enabled {
2013 self.start_inline_blame_timer(cx);
2014 }
2015 }
2016
2017 self.blink_manager.update(cx, BlinkManager::pause_blinking);
2018 cx.emit(EditorEvent::SelectionsChanged { local });
2019
2020 if self.selections.disjoint_anchors().len() == 1 {
2021 cx.emit(SearchEvent::ActiveMatchChanged)
2022 }
2023 cx.notify();
2024 }
2025
2026 pub fn change_selections<R>(
2027 &mut self,
2028 autoscroll: Option<Autoscroll>,
2029 cx: &mut ViewContext<Self>,
2030 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2031 ) -> R {
2032 self.change_selections_inner(autoscroll, true, cx, change)
2033 }
2034
2035 pub fn change_selections_inner<R>(
2036 &mut self,
2037 autoscroll: Option<Autoscroll>,
2038 request_completions: bool,
2039 cx: &mut ViewContext<Self>,
2040 change: impl FnOnce(&mut MutableSelectionsCollection<'_>) -> R,
2041 ) -> R {
2042 let old_cursor_position = self.selections.newest_anchor().head();
2043 self.push_to_selection_history();
2044
2045 let (changed, result) = self.selections.change_with(cx, change);
2046
2047 if changed {
2048 if let Some(autoscroll) = autoscroll {
2049 self.request_autoscroll(autoscroll, cx);
2050 }
2051 self.selections_did_change(true, &old_cursor_position, request_completions, cx);
2052
2053 if self.should_open_signature_help_automatically(
2054 &old_cursor_position,
2055 self.signature_help_state.backspace_pressed(),
2056 cx,
2057 ) {
2058 self.show_signature_help(&ShowSignatureHelp, cx);
2059 }
2060 self.signature_help_state.set_backspace_pressed(false);
2061 }
2062
2063 result
2064 }
2065
2066 pub fn edit<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2067 where
2068 I: IntoIterator<Item = (Range<S>, T)>,
2069 S: ToOffset,
2070 T: Into<Arc<str>>,
2071 {
2072 if self.read_only(cx) {
2073 return;
2074 }
2075
2076 self.buffer
2077 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
2078 }
2079
2080 pub fn edit_with_autoindent<I, S, T>(&mut self, edits: I, cx: &mut ViewContext<Self>)
2081 where
2082 I: IntoIterator<Item = (Range<S>, T)>,
2083 S: ToOffset,
2084 T: Into<Arc<str>>,
2085 {
2086 if self.read_only(cx) {
2087 return;
2088 }
2089
2090 self.buffer.update(cx, |buffer, cx| {
2091 buffer.edit(edits, self.autoindent_mode.clone(), cx)
2092 });
2093 }
2094
2095 pub fn edit_with_block_indent<I, S, T>(
2096 &mut self,
2097 edits: I,
2098 original_indent_columns: Vec<u32>,
2099 cx: &mut ViewContext<Self>,
2100 ) where
2101 I: IntoIterator<Item = (Range<S>, T)>,
2102 S: ToOffset,
2103 T: Into<Arc<str>>,
2104 {
2105 if self.read_only(cx) {
2106 return;
2107 }
2108
2109 self.buffer.update(cx, |buffer, cx| {
2110 buffer.edit(
2111 edits,
2112 Some(AutoindentMode::Block {
2113 original_indent_columns,
2114 }),
2115 cx,
2116 )
2117 });
2118 }
2119
2120 fn select(&mut self, phase: SelectPhase, cx: &mut ViewContext<Self>) {
2121 self.hide_context_menu(cx);
2122
2123 match phase {
2124 SelectPhase::Begin {
2125 position,
2126 add,
2127 click_count,
2128 } => self.begin_selection(position, add, click_count, cx),
2129 SelectPhase::BeginColumnar {
2130 position,
2131 goal_column,
2132 reset,
2133 } => self.begin_columnar_selection(position, goal_column, reset, cx),
2134 SelectPhase::Extend {
2135 position,
2136 click_count,
2137 } => self.extend_selection(position, click_count, cx),
2138 SelectPhase::Update {
2139 position,
2140 goal_column,
2141 scroll_delta,
2142 } => self.update_selection(position, goal_column, scroll_delta, cx),
2143 SelectPhase::End => self.end_selection(cx),
2144 }
2145 }
2146
2147 fn extend_selection(
2148 &mut self,
2149 position: DisplayPoint,
2150 click_count: usize,
2151 cx: &mut ViewContext<Self>,
2152 ) {
2153 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2154 let tail = self.selections.newest::<usize>(cx).tail();
2155 self.begin_selection(position, false, click_count, cx);
2156
2157 let position = position.to_offset(&display_map, Bias::Left);
2158 let tail_anchor = display_map.buffer_snapshot.anchor_before(tail);
2159
2160 let mut pending_selection = self
2161 .selections
2162 .pending_anchor()
2163 .expect("extend_selection not called with pending selection");
2164 if position >= tail {
2165 pending_selection.start = tail_anchor;
2166 } else {
2167 pending_selection.end = tail_anchor;
2168 pending_selection.reversed = true;
2169 }
2170
2171 let mut pending_mode = self.selections.pending_mode().unwrap();
2172 match &mut pending_mode {
2173 SelectMode::Word(range) | SelectMode::Line(range) => *range = tail_anchor..tail_anchor,
2174 _ => {}
2175 }
2176
2177 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
2178 s.set_pending(pending_selection, pending_mode)
2179 });
2180 }
2181
2182 fn begin_selection(
2183 &mut self,
2184 position: DisplayPoint,
2185 add: bool,
2186 click_count: usize,
2187 cx: &mut ViewContext<Self>,
2188 ) {
2189 if !self.focus_handle.is_focused(cx) {
2190 self.last_focused_descendant = None;
2191 cx.focus(&self.focus_handle);
2192 }
2193
2194 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2195 let buffer = &display_map.buffer_snapshot;
2196 let newest_selection = self.selections.newest_anchor().clone();
2197 let position = display_map.clip_point(position, Bias::Left);
2198
2199 let start;
2200 let end;
2201 let mode;
2202 let mut auto_scroll;
2203 match click_count {
2204 1 => {
2205 start = buffer.anchor_before(position.to_point(&display_map));
2206 end = start;
2207 mode = SelectMode::Character;
2208 auto_scroll = true;
2209 }
2210 2 => {
2211 let range = movement::surrounding_word(&display_map, position);
2212 start = buffer.anchor_before(range.start.to_point(&display_map));
2213 end = buffer.anchor_before(range.end.to_point(&display_map));
2214 mode = SelectMode::Word(start..end);
2215 auto_scroll = true;
2216 }
2217 3 => {
2218 let position = display_map
2219 .clip_point(position, Bias::Left)
2220 .to_point(&display_map);
2221 let line_start = display_map.prev_line_boundary(position).0;
2222 let next_line_start = buffer.clip_point(
2223 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2224 Bias::Left,
2225 );
2226 start = buffer.anchor_before(line_start);
2227 end = buffer.anchor_before(next_line_start);
2228 mode = SelectMode::Line(start..end);
2229 auto_scroll = true;
2230 }
2231 _ => {
2232 start = buffer.anchor_before(0);
2233 end = buffer.anchor_before(buffer.len());
2234 mode = SelectMode::All;
2235 auto_scroll = false;
2236 }
2237 }
2238 auto_scroll &= EditorSettings::get_global(cx).autoscroll_on_clicks;
2239
2240 let point_to_delete: Option<usize> = {
2241 let selected_points: Vec<Selection<Point>> =
2242 self.selections.disjoint_in_range(start..end, cx);
2243
2244 if !add || click_count > 1 {
2245 None
2246 } else if !selected_points.is_empty() {
2247 Some(selected_points[0].id)
2248 } else {
2249 let clicked_point_already_selected =
2250 self.selections.disjoint.iter().find(|selection| {
2251 selection.start.to_point(buffer) == start.to_point(buffer)
2252 || selection.end.to_point(buffer) == end.to_point(buffer)
2253 });
2254
2255 clicked_point_already_selected.map(|selection| selection.id)
2256 }
2257 };
2258
2259 let selections_count = self.selections.count();
2260
2261 self.change_selections(auto_scroll.then(Autoscroll::newest), cx, |s| {
2262 if let Some(point_to_delete) = point_to_delete {
2263 s.delete(point_to_delete);
2264
2265 if selections_count == 1 {
2266 s.set_pending_anchor_range(start..end, mode);
2267 }
2268 } else {
2269 if !add {
2270 s.clear_disjoint();
2271 } else if click_count > 1 {
2272 s.delete(newest_selection.id)
2273 }
2274
2275 s.set_pending_anchor_range(start..end, mode);
2276 }
2277 });
2278 }
2279
2280 fn begin_columnar_selection(
2281 &mut self,
2282 position: DisplayPoint,
2283 goal_column: u32,
2284 reset: bool,
2285 cx: &mut ViewContext<Self>,
2286 ) {
2287 if !self.focus_handle.is_focused(cx) {
2288 self.last_focused_descendant = None;
2289 cx.focus(&self.focus_handle);
2290 }
2291
2292 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2293
2294 if reset {
2295 let pointer_position = display_map
2296 .buffer_snapshot
2297 .anchor_before(position.to_point(&display_map));
2298
2299 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
2300 s.clear_disjoint();
2301 s.set_pending_anchor_range(
2302 pointer_position..pointer_position,
2303 SelectMode::Character,
2304 );
2305 });
2306 }
2307
2308 let tail = self.selections.newest::<Point>(cx).tail();
2309 self.columnar_selection_tail = Some(display_map.buffer_snapshot.anchor_before(tail));
2310
2311 if !reset {
2312 self.select_columns(
2313 tail.to_display_point(&display_map),
2314 position,
2315 goal_column,
2316 &display_map,
2317 cx,
2318 );
2319 }
2320 }
2321
2322 fn update_selection(
2323 &mut self,
2324 position: DisplayPoint,
2325 goal_column: u32,
2326 scroll_delta: gpui::Point<f32>,
2327 cx: &mut ViewContext<Self>,
2328 ) {
2329 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
2330
2331 if let Some(tail) = self.columnar_selection_tail.as_ref() {
2332 let tail = tail.to_display_point(&display_map);
2333 self.select_columns(tail, position, goal_column, &display_map, cx);
2334 } else if let Some(mut pending) = self.selections.pending_anchor() {
2335 let buffer = self.buffer.read(cx).snapshot(cx);
2336 let head;
2337 let tail;
2338 let mode = self.selections.pending_mode().unwrap();
2339 match &mode {
2340 SelectMode::Character => {
2341 head = position.to_point(&display_map);
2342 tail = pending.tail().to_point(&buffer);
2343 }
2344 SelectMode::Word(original_range) => {
2345 let original_display_range = original_range.start.to_display_point(&display_map)
2346 ..original_range.end.to_display_point(&display_map);
2347 let original_buffer_range = original_display_range.start.to_point(&display_map)
2348 ..original_display_range.end.to_point(&display_map);
2349 if movement::is_inside_word(&display_map, position)
2350 || original_display_range.contains(&position)
2351 {
2352 let word_range = movement::surrounding_word(&display_map, position);
2353 if word_range.start < original_display_range.start {
2354 head = word_range.start.to_point(&display_map);
2355 } else {
2356 head = word_range.end.to_point(&display_map);
2357 }
2358 } else {
2359 head = position.to_point(&display_map);
2360 }
2361
2362 if head <= original_buffer_range.start {
2363 tail = original_buffer_range.end;
2364 } else {
2365 tail = original_buffer_range.start;
2366 }
2367 }
2368 SelectMode::Line(original_range) => {
2369 let original_range = original_range.to_point(&display_map.buffer_snapshot);
2370
2371 let position = display_map
2372 .clip_point(position, Bias::Left)
2373 .to_point(&display_map);
2374 let line_start = display_map.prev_line_boundary(position).0;
2375 let next_line_start = buffer.clip_point(
2376 display_map.next_line_boundary(position).0 + Point::new(1, 0),
2377 Bias::Left,
2378 );
2379
2380 if line_start < original_range.start {
2381 head = line_start
2382 } else {
2383 head = next_line_start
2384 }
2385
2386 if head <= original_range.start {
2387 tail = original_range.end;
2388 } else {
2389 tail = original_range.start;
2390 }
2391 }
2392 SelectMode::All => {
2393 return;
2394 }
2395 };
2396
2397 if head < tail {
2398 pending.start = buffer.anchor_before(head);
2399 pending.end = buffer.anchor_before(tail);
2400 pending.reversed = true;
2401 } else {
2402 pending.start = buffer.anchor_before(tail);
2403 pending.end = buffer.anchor_before(head);
2404 pending.reversed = false;
2405 }
2406
2407 self.change_selections(None, cx, |s| {
2408 s.set_pending(pending, mode);
2409 });
2410 } else {
2411 log::error!("update_selection dispatched with no pending selection");
2412 return;
2413 }
2414
2415 self.apply_scroll_delta(scroll_delta, cx);
2416 cx.notify();
2417 }
2418
2419 fn end_selection(&mut self, cx: &mut ViewContext<Self>) {
2420 self.columnar_selection_tail.take();
2421 if self.selections.pending_anchor().is_some() {
2422 let selections = self.selections.all::<usize>(cx);
2423 self.change_selections(None, cx, |s| {
2424 s.select(selections);
2425 s.clear_pending();
2426 });
2427 }
2428 }
2429
2430 fn select_columns(
2431 &mut self,
2432 tail: DisplayPoint,
2433 head: DisplayPoint,
2434 goal_column: u32,
2435 display_map: &DisplaySnapshot,
2436 cx: &mut ViewContext<Self>,
2437 ) {
2438 let start_row = cmp::min(tail.row(), head.row());
2439 let end_row = cmp::max(tail.row(), head.row());
2440 let start_column = cmp::min(tail.column(), goal_column);
2441 let end_column = cmp::max(tail.column(), goal_column);
2442 let reversed = start_column < tail.column();
2443
2444 let selection_ranges = (start_row.0..=end_row.0)
2445 .map(DisplayRow)
2446 .filter_map(|row| {
2447 if start_column <= display_map.line_len(row) && !display_map.is_block_line(row) {
2448 let start = display_map
2449 .clip_point(DisplayPoint::new(row, start_column), Bias::Left)
2450 .to_point(display_map);
2451 let end = display_map
2452 .clip_point(DisplayPoint::new(row, end_column), Bias::Right)
2453 .to_point(display_map);
2454 if reversed {
2455 Some(end..start)
2456 } else {
2457 Some(start..end)
2458 }
2459 } else {
2460 None
2461 }
2462 })
2463 .collect::<Vec<_>>();
2464
2465 self.change_selections(None, cx, |s| {
2466 s.select_ranges(selection_ranges);
2467 });
2468 cx.notify();
2469 }
2470
2471 pub fn has_pending_nonempty_selection(&self) -> bool {
2472 let pending_nonempty_selection = match self.selections.pending_anchor() {
2473 Some(Selection { start, end, .. }) => start != end,
2474 None => false,
2475 };
2476
2477 pending_nonempty_selection
2478 || (self.columnar_selection_tail.is_some() && self.selections.disjoint.len() > 1)
2479 }
2480
2481 pub fn has_pending_selection(&self) -> bool {
2482 self.selections.pending_anchor().is_some() || self.columnar_selection_tail.is_some()
2483 }
2484
2485 pub fn cancel(&mut self, _: &Cancel, cx: &mut ViewContext<Self>) {
2486 self.selection_mark_mode = false;
2487
2488 if self.clear_expanded_diff_hunks(cx) {
2489 cx.notify();
2490 return;
2491 }
2492 if self.dismiss_menus_and_popups(true, cx) {
2493 return;
2494 }
2495
2496 if self.mode == EditorMode::Full
2497 && self.change_selections(Some(Autoscroll::fit()), cx, |s| s.try_cancel())
2498 {
2499 return;
2500 }
2501
2502 cx.propagate();
2503 }
2504
2505 pub fn dismiss_menus_and_popups(
2506 &mut self,
2507 should_report_inline_completion_event: bool,
2508 cx: &mut ViewContext<Self>,
2509 ) -> bool {
2510 if self.take_rename(false, cx).is_some() {
2511 return true;
2512 }
2513
2514 if hide_hover(self, cx) {
2515 return true;
2516 }
2517
2518 if self.hide_signature_help(cx, SignatureHelpHiddenBy::Escape) {
2519 return true;
2520 }
2521
2522 if self.hide_context_menu(cx).is_some() {
2523 if self.show_inline_completions_in_menu(cx) && self.has_active_inline_completion() {
2524 self.update_visible_inline_completion(cx);
2525 }
2526 return true;
2527 }
2528
2529 if self.mouse_context_menu.take().is_some() {
2530 return true;
2531 }
2532
2533 if self.discard_inline_completion(should_report_inline_completion_event, cx) {
2534 return true;
2535 }
2536
2537 if self.snippet_stack.pop().is_some() {
2538 return true;
2539 }
2540
2541 if self.mode == EditorMode::Full && self.active_diagnostics.is_some() {
2542 self.dismiss_diagnostics(cx);
2543 return true;
2544 }
2545
2546 false
2547 }
2548
2549 fn linked_editing_ranges_for(
2550 &self,
2551 selection: Range<text::Anchor>,
2552 cx: &AppContext,
2553 ) -> Option<HashMap<Model<Buffer>, Vec<Range<text::Anchor>>>> {
2554 if self.linked_edit_ranges.is_empty() {
2555 return None;
2556 }
2557 let ((base_range, linked_ranges), buffer_snapshot, buffer) =
2558 selection.end.buffer_id.and_then(|end_buffer_id| {
2559 if selection.start.buffer_id != Some(end_buffer_id) {
2560 return None;
2561 }
2562 let buffer = self.buffer.read(cx).buffer(end_buffer_id)?;
2563 let snapshot = buffer.read(cx).snapshot();
2564 self.linked_edit_ranges
2565 .get(end_buffer_id, selection.start..selection.end, &snapshot)
2566 .map(|ranges| (ranges, snapshot, buffer))
2567 })?;
2568 use text::ToOffset as TO;
2569 // find offset from the start of current range to current cursor position
2570 let start_byte_offset = TO::to_offset(&base_range.start, &buffer_snapshot);
2571
2572 let start_offset = TO::to_offset(&selection.start, &buffer_snapshot);
2573 let start_difference = start_offset - start_byte_offset;
2574 let end_offset = TO::to_offset(&selection.end, &buffer_snapshot);
2575 let end_difference = end_offset - start_byte_offset;
2576 // Current range has associated linked ranges.
2577 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2578 for range in linked_ranges.iter() {
2579 let start_offset = TO::to_offset(&range.start, &buffer_snapshot);
2580 let end_offset = start_offset + end_difference;
2581 let start_offset = start_offset + start_difference;
2582 if start_offset > buffer_snapshot.len() || end_offset > buffer_snapshot.len() {
2583 continue;
2584 }
2585 if self.selections.disjoint_anchor_ranges().any(|s| {
2586 if s.start.buffer_id != selection.start.buffer_id
2587 || s.end.buffer_id != selection.end.buffer_id
2588 {
2589 return false;
2590 }
2591 TO::to_offset(&s.start.text_anchor, &buffer_snapshot) <= end_offset
2592 && TO::to_offset(&s.end.text_anchor, &buffer_snapshot) >= start_offset
2593 }) {
2594 continue;
2595 }
2596 let start = buffer_snapshot.anchor_after(start_offset);
2597 let end = buffer_snapshot.anchor_after(end_offset);
2598 linked_edits
2599 .entry(buffer.clone())
2600 .or_default()
2601 .push(start..end);
2602 }
2603 Some(linked_edits)
2604 }
2605
2606 pub fn handle_input(&mut self, text: &str, cx: &mut ViewContext<Self>) {
2607 let text: Arc<str> = text.into();
2608
2609 if self.read_only(cx) {
2610 return;
2611 }
2612
2613 let selections = self.selections.all_adjusted(cx);
2614 let mut bracket_inserted = false;
2615 let mut edits = Vec::new();
2616 let mut linked_edits = HashMap::<_, Vec<_>>::default();
2617 let mut new_selections = Vec::with_capacity(selections.len());
2618 let mut new_autoclose_regions = Vec::new();
2619 let snapshot = self.buffer.read(cx).read(cx);
2620
2621 for (selection, autoclose_region) in
2622 self.selections_with_autoclose_regions(selections, &snapshot)
2623 {
2624 if let Some(scope) = snapshot.language_scope_at(selection.head()) {
2625 // Determine if the inserted text matches the opening or closing
2626 // bracket of any of this language's bracket pairs.
2627 let mut bracket_pair = None;
2628 let mut is_bracket_pair_start = false;
2629 let mut is_bracket_pair_end = false;
2630 if !text.is_empty() {
2631 // `text` can be empty when a user is using IME (e.g. Chinese Wubi Simplified)
2632 // and they are removing the character that triggered IME popup.
2633 for (pair, enabled) in scope.brackets() {
2634 if !pair.close && !pair.surround {
2635 continue;
2636 }
2637
2638 if enabled && pair.start.ends_with(text.as_ref()) {
2639 let prefix_len = pair.start.len() - text.len();
2640 let preceding_text_matches_prefix = prefix_len == 0
2641 || (selection.start.column >= (prefix_len as u32)
2642 && snapshot.contains_str_at(
2643 Point::new(
2644 selection.start.row,
2645 selection.start.column - (prefix_len as u32),
2646 ),
2647 &pair.start[..prefix_len],
2648 ));
2649 if preceding_text_matches_prefix {
2650 bracket_pair = Some(pair.clone());
2651 is_bracket_pair_start = true;
2652 break;
2653 }
2654 }
2655 if pair.end.as_str() == text.as_ref() {
2656 bracket_pair = Some(pair.clone());
2657 is_bracket_pair_end = true;
2658 break;
2659 }
2660 }
2661 }
2662
2663 if let Some(bracket_pair) = bracket_pair {
2664 let snapshot_settings = snapshot.settings_at(selection.start, cx);
2665 let autoclose = self.use_autoclose && snapshot_settings.use_autoclose;
2666 let auto_surround =
2667 self.use_auto_surround && snapshot_settings.use_auto_surround;
2668 if selection.is_empty() {
2669 if is_bracket_pair_start {
2670 // If the inserted text is a suffix of an opening bracket and the
2671 // selection is preceded by the rest of the opening bracket, then
2672 // insert the closing bracket.
2673 let following_text_allows_autoclose = snapshot
2674 .chars_at(selection.start)
2675 .next()
2676 .map_or(true, |c| scope.should_autoclose_before(c));
2677
2678 let is_closing_quote = if bracket_pair.end == bracket_pair.start
2679 && bracket_pair.start.len() == 1
2680 {
2681 let target = bracket_pair.start.chars().next().unwrap();
2682 let current_line_count = snapshot
2683 .reversed_chars_at(selection.start)
2684 .take_while(|&c| c != '\n')
2685 .filter(|&c| c == target)
2686 .count();
2687 current_line_count % 2 == 1
2688 } else {
2689 false
2690 };
2691
2692 if autoclose
2693 && bracket_pair.close
2694 && following_text_allows_autoclose
2695 && !is_closing_quote
2696 {
2697 let anchor = snapshot.anchor_before(selection.end);
2698 new_selections.push((selection.map(|_| anchor), text.len()));
2699 new_autoclose_regions.push((
2700 anchor,
2701 text.len(),
2702 selection.id,
2703 bracket_pair.clone(),
2704 ));
2705 edits.push((
2706 selection.range(),
2707 format!("{}{}", text, bracket_pair.end).into(),
2708 ));
2709 bracket_inserted = true;
2710 continue;
2711 }
2712 }
2713
2714 if let Some(region) = autoclose_region {
2715 // If the selection is followed by an auto-inserted closing bracket,
2716 // then don't insert that closing bracket again; just move the selection
2717 // past the closing bracket.
2718 let should_skip = selection.end == region.range.end.to_point(&snapshot)
2719 && text.as_ref() == region.pair.end.as_str();
2720 if should_skip {
2721 let anchor = snapshot.anchor_after(selection.end);
2722 new_selections
2723 .push((selection.map(|_| anchor), region.pair.end.len()));
2724 continue;
2725 }
2726 }
2727
2728 let always_treat_brackets_as_autoclosed = snapshot
2729 .settings_at(selection.start, cx)
2730 .always_treat_brackets_as_autoclosed;
2731 if always_treat_brackets_as_autoclosed
2732 && is_bracket_pair_end
2733 && snapshot.contains_str_at(selection.end, text.as_ref())
2734 {
2735 // Otherwise, when `always_treat_brackets_as_autoclosed` is set to `true
2736 // and the inserted text is a closing bracket and the selection is followed
2737 // by the closing bracket then move the selection past the closing bracket.
2738 let anchor = snapshot.anchor_after(selection.end);
2739 new_selections.push((selection.map(|_| anchor), text.len()));
2740 continue;
2741 }
2742 }
2743 // If an opening bracket is 1 character long and is typed while
2744 // text is selected, then surround that text with the bracket pair.
2745 else if auto_surround
2746 && bracket_pair.surround
2747 && is_bracket_pair_start
2748 && bracket_pair.start.chars().count() == 1
2749 {
2750 edits.push((selection.start..selection.start, text.clone()));
2751 edits.push((
2752 selection.end..selection.end,
2753 bracket_pair.end.as_str().into(),
2754 ));
2755 bracket_inserted = true;
2756 new_selections.push((
2757 Selection {
2758 id: selection.id,
2759 start: snapshot.anchor_after(selection.start),
2760 end: snapshot.anchor_before(selection.end),
2761 reversed: selection.reversed,
2762 goal: selection.goal,
2763 },
2764 0,
2765 ));
2766 continue;
2767 }
2768 }
2769 }
2770
2771 if self.auto_replace_emoji_shortcode
2772 && selection.is_empty()
2773 && text.as_ref().ends_with(':')
2774 {
2775 if let Some(possible_emoji_short_code) =
2776 Self::find_possible_emoji_shortcode_at_position(&snapshot, selection.start)
2777 {
2778 if !possible_emoji_short_code.is_empty() {
2779 if let Some(emoji) = emojis::get_by_shortcode(&possible_emoji_short_code) {
2780 let emoji_shortcode_start = Point::new(
2781 selection.start.row,
2782 selection.start.column - possible_emoji_short_code.len() as u32 - 1,
2783 );
2784
2785 // Remove shortcode from buffer
2786 edits.push((
2787 emoji_shortcode_start..selection.start,
2788 "".to_string().into(),
2789 ));
2790 new_selections.push((
2791 Selection {
2792 id: selection.id,
2793 start: snapshot.anchor_after(emoji_shortcode_start),
2794 end: snapshot.anchor_before(selection.start),
2795 reversed: selection.reversed,
2796 goal: selection.goal,
2797 },
2798 0,
2799 ));
2800
2801 // Insert emoji
2802 let selection_start_anchor = snapshot.anchor_after(selection.start);
2803 new_selections.push((selection.map(|_| selection_start_anchor), 0));
2804 edits.push((selection.start..selection.end, emoji.to_string().into()));
2805
2806 continue;
2807 }
2808 }
2809 }
2810 }
2811
2812 // If not handling any auto-close operation, then just replace the selected
2813 // text with the given input and move the selection to the end of the
2814 // newly inserted text.
2815 let anchor = snapshot.anchor_after(selection.end);
2816 if !self.linked_edit_ranges.is_empty() {
2817 let start_anchor = snapshot.anchor_before(selection.start);
2818
2819 let is_word_char = text.chars().next().map_or(true, |char| {
2820 let classifier = snapshot.char_classifier_at(start_anchor.to_offset(&snapshot));
2821 classifier.is_word(char)
2822 });
2823
2824 if is_word_char {
2825 if let Some(ranges) = self
2826 .linked_editing_ranges_for(start_anchor.text_anchor..anchor.text_anchor, cx)
2827 {
2828 for (buffer, edits) in ranges {
2829 linked_edits
2830 .entry(buffer.clone())
2831 .or_default()
2832 .extend(edits.into_iter().map(|range| (range, text.clone())));
2833 }
2834 }
2835 }
2836 }
2837
2838 new_selections.push((selection.map(|_| anchor), 0));
2839 edits.push((selection.start..selection.end, text.clone()));
2840 }
2841
2842 drop(snapshot);
2843
2844 self.transact(cx, |this, cx| {
2845 this.buffer.update(cx, |buffer, cx| {
2846 buffer.edit(edits, this.autoindent_mode.clone(), cx);
2847 });
2848 for (buffer, edits) in linked_edits {
2849 buffer.update(cx, |buffer, cx| {
2850 let snapshot = buffer.snapshot();
2851 let edits = edits
2852 .into_iter()
2853 .map(|(range, text)| {
2854 use text::ToPoint as TP;
2855 let end_point = TP::to_point(&range.end, &snapshot);
2856 let start_point = TP::to_point(&range.start, &snapshot);
2857 (start_point..end_point, text)
2858 })
2859 .sorted_by_key(|(range, _)| range.start)
2860 .collect::<Vec<_>>();
2861 buffer.edit(edits, None, cx);
2862 })
2863 }
2864 let new_anchor_selections = new_selections.iter().map(|e| &e.0);
2865 let new_selection_deltas = new_selections.iter().map(|e| e.1);
2866 let map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
2867 let new_selections = resolve_selections::<usize, _>(new_anchor_selections, &map)
2868 .zip(new_selection_deltas)
2869 .map(|(selection, delta)| Selection {
2870 id: selection.id,
2871 start: selection.start + delta,
2872 end: selection.end + delta,
2873 reversed: selection.reversed,
2874 goal: SelectionGoal::None,
2875 })
2876 .collect::<Vec<_>>();
2877
2878 let mut i = 0;
2879 for (position, delta, selection_id, pair) in new_autoclose_regions {
2880 let position = position.to_offset(&map.buffer_snapshot) + delta;
2881 let start = map.buffer_snapshot.anchor_before(position);
2882 let end = map.buffer_snapshot.anchor_after(position);
2883 while let Some(existing_state) = this.autoclose_regions.get(i) {
2884 match existing_state.range.start.cmp(&start, &map.buffer_snapshot) {
2885 Ordering::Less => i += 1,
2886 Ordering::Greater => break,
2887 Ordering::Equal => {
2888 match end.cmp(&existing_state.range.end, &map.buffer_snapshot) {
2889 Ordering::Less => i += 1,
2890 Ordering::Equal => break,
2891 Ordering::Greater => break,
2892 }
2893 }
2894 }
2895 }
2896 this.autoclose_regions.insert(
2897 i,
2898 AutocloseRegion {
2899 selection_id,
2900 range: start..end,
2901 pair,
2902 },
2903 );
2904 }
2905
2906 let had_active_inline_completion = this.has_active_inline_completion();
2907 this.change_selections_inner(Some(Autoscroll::fit()), false, cx, |s| {
2908 s.select(new_selections)
2909 });
2910
2911 if !bracket_inserted {
2912 if let Some(on_type_format_task) =
2913 this.trigger_on_type_formatting(text.to_string(), cx)
2914 {
2915 on_type_format_task.detach_and_log_err(cx);
2916 }
2917 }
2918
2919 let editor_settings = EditorSettings::get_global(cx);
2920 if bracket_inserted
2921 && (editor_settings.auto_signature_help
2922 || editor_settings.show_signature_help_after_edits)
2923 {
2924 this.show_signature_help(&ShowSignatureHelp, cx);
2925 }
2926
2927 let trigger_in_words =
2928 this.show_inline_completions_in_menu(cx) || !had_active_inline_completion;
2929 this.trigger_completion_on_input(&text, trigger_in_words, cx);
2930 linked_editing_ranges::refresh_linked_ranges(this, cx);
2931 this.refresh_inline_completion(true, false, cx);
2932 });
2933 }
2934
2935 fn find_possible_emoji_shortcode_at_position(
2936 snapshot: &MultiBufferSnapshot,
2937 position: Point,
2938 ) -> Option<String> {
2939 let mut chars = Vec::new();
2940 let mut found_colon = false;
2941 for char in snapshot.reversed_chars_at(position).take(100) {
2942 // Found a possible emoji shortcode in the middle of the buffer
2943 if found_colon {
2944 if char.is_whitespace() {
2945 chars.reverse();
2946 return Some(chars.iter().collect());
2947 }
2948 // If the previous character is not a whitespace, we are in the middle of a word
2949 // and we only want to complete the shortcode if the word is made up of other emojis
2950 let mut containing_word = String::new();
2951 for ch in snapshot
2952 .reversed_chars_at(position)
2953 .skip(chars.len() + 1)
2954 .take(100)
2955 {
2956 if ch.is_whitespace() {
2957 break;
2958 }
2959 containing_word.push(ch);
2960 }
2961 let containing_word = containing_word.chars().rev().collect::<String>();
2962 if util::word_consists_of_emojis(containing_word.as_str()) {
2963 chars.reverse();
2964 return Some(chars.iter().collect());
2965 }
2966 }
2967
2968 if char.is_whitespace() || !char.is_ascii() {
2969 return None;
2970 }
2971 if char == ':' {
2972 found_colon = true;
2973 } else {
2974 chars.push(char);
2975 }
2976 }
2977 // Found a possible emoji shortcode at the beginning of the buffer
2978 chars.reverse();
2979 Some(chars.iter().collect())
2980 }
2981
2982 pub fn newline(&mut self, _: &Newline, cx: &mut ViewContext<Self>) {
2983 self.transact(cx, |this, cx| {
2984 let (edits, selection_fixup_info): (Vec<_>, Vec<_>) = {
2985 let selections = this.selections.all::<usize>(cx);
2986 let multi_buffer = this.buffer.read(cx);
2987 let buffer = multi_buffer.snapshot(cx);
2988 selections
2989 .iter()
2990 .map(|selection| {
2991 let start_point = selection.start.to_point(&buffer);
2992 let mut indent =
2993 buffer.indent_size_for_line(MultiBufferRow(start_point.row));
2994 indent.len = cmp::min(indent.len, start_point.column);
2995 let start = selection.start;
2996 let end = selection.end;
2997 let selection_is_empty = start == end;
2998 let language_scope = buffer.language_scope_at(start);
2999 let (comment_delimiter, insert_extra_newline) = if let Some(language) =
3000 &language_scope
3001 {
3002 let leading_whitespace_len = buffer
3003 .reversed_chars_at(start)
3004 .take_while(|c| c.is_whitespace() && *c != '\n')
3005 .map(|c| c.len_utf8())
3006 .sum::<usize>();
3007
3008 let trailing_whitespace_len = buffer
3009 .chars_at(end)
3010 .take_while(|c| c.is_whitespace() && *c != '\n')
3011 .map(|c| c.len_utf8())
3012 .sum::<usize>();
3013
3014 let insert_extra_newline =
3015 language.brackets().any(|(pair, enabled)| {
3016 let pair_start = pair.start.trim_end();
3017 let pair_end = pair.end.trim_start();
3018
3019 enabled
3020 && pair.newline
3021 && buffer.contains_str_at(
3022 end + trailing_whitespace_len,
3023 pair_end,
3024 )
3025 && buffer.contains_str_at(
3026 (start - leading_whitespace_len)
3027 .saturating_sub(pair_start.len()),
3028 pair_start,
3029 )
3030 });
3031
3032 // Comment extension on newline is allowed only for cursor selections
3033 let comment_delimiter = maybe!({
3034 if !selection_is_empty {
3035 return None;
3036 }
3037
3038 if !multi_buffer.settings_at(0, cx).extend_comment_on_newline {
3039 return None;
3040 }
3041
3042 let delimiters = language.line_comment_prefixes();
3043 let max_len_of_delimiter =
3044 delimiters.iter().map(|delimiter| delimiter.len()).max()?;
3045 let (snapshot, range) =
3046 buffer.buffer_line_for_row(MultiBufferRow(start_point.row))?;
3047
3048 let mut index_of_first_non_whitespace = 0;
3049 let comment_candidate = snapshot
3050 .chars_for_range(range)
3051 .skip_while(|c| {
3052 let should_skip = c.is_whitespace();
3053 if should_skip {
3054 index_of_first_non_whitespace += 1;
3055 }
3056 should_skip
3057 })
3058 .take(max_len_of_delimiter)
3059 .collect::<String>();
3060 let comment_prefix = delimiters.iter().find(|comment_prefix| {
3061 comment_candidate.starts_with(comment_prefix.as_ref())
3062 })?;
3063 let cursor_is_placed_after_comment_marker =
3064 index_of_first_non_whitespace + comment_prefix.len()
3065 <= start_point.column as usize;
3066 if cursor_is_placed_after_comment_marker {
3067 Some(comment_prefix.clone())
3068 } else {
3069 None
3070 }
3071 });
3072 (comment_delimiter, insert_extra_newline)
3073 } else {
3074 (None, false)
3075 };
3076
3077 let capacity_for_delimiter = comment_delimiter
3078 .as_deref()
3079 .map(str::len)
3080 .unwrap_or_default();
3081 let mut new_text =
3082 String::with_capacity(1 + capacity_for_delimiter + indent.len as usize);
3083 new_text.push('\n');
3084 new_text.extend(indent.chars());
3085 if let Some(delimiter) = &comment_delimiter {
3086 new_text.push_str(delimiter);
3087 }
3088 if insert_extra_newline {
3089 new_text = new_text.repeat(2);
3090 }
3091
3092 let anchor = buffer.anchor_after(end);
3093 let new_selection = selection.map(|_| anchor);
3094 (
3095 (start..end, new_text),
3096 (insert_extra_newline, new_selection),
3097 )
3098 })
3099 .unzip()
3100 };
3101
3102 this.edit_with_autoindent(edits, cx);
3103 let buffer = this.buffer.read(cx).snapshot(cx);
3104 let new_selections = selection_fixup_info
3105 .into_iter()
3106 .map(|(extra_newline_inserted, new_selection)| {
3107 let mut cursor = new_selection.end.to_point(&buffer);
3108 if extra_newline_inserted {
3109 cursor.row -= 1;
3110 cursor.column = buffer.line_len(MultiBufferRow(cursor.row));
3111 }
3112 new_selection.map(|_| cursor)
3113 })
3114 .collect();
3115
3116 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
3117 this.refresh_inline_completion(true, false, cx);
3118 });
3119 }
3120
3121 pub fn newline_above(&mut self, _: &NewlineAbove, cx: &mut ViewContext<Self>) {
3122 let buffer = self.buffer.read(cx);
3123 let snapshot = buffer.snapshot(cx);
3124
3125 let mut edits = Vec::new();
3126 let mut rows = Vec::new();
3127
3128 for (rows_inserted, selection) in self.selections.all_adjusted(cx).into_iter().enumerate() {
3129 let cursor = selection.head();
3130 let row = cursor.row;
3131
3132 let start_of_line = snapshot.clip_point(Point::new(row, 0), Bias::Left);
3133
3134 let newline = "\n".to_string();
3135 edits.push((start_of_line..start_of_line, newline));
3136
3137 rows.push(row + rows_inserted as u32);
3138 }
3139
3140 self.transact(cx, |editor, cx| {
3141 editor.edit(edits, cx);
3142
3143 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3144 let mut index = 0;
3145 s.move_cursors_with(|map, _, _| {
3146 let row = rows[index];
3147 index += 1;
3148
3149 let point = Point::new(row, 0);
3150 let boundary = map.next_line_boundary(point).1;
3151 let clipped = map.clip_point(boundary, Bias::Left);
3152
3153 (clipped, SelectionGoal::None)
3154 });
3155 });
3156
3157 let mut indent_edits = Vec::new();
3158 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3159 for row in rows {
3160 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3161 for (row, indent) in indents {
3162 if indent.len == 0 {
3163 continue;
3164 }
3165
3166 let text = match indent.kind {
3167 IndentKind::Space => " ".repeat(indent.len as usize),
3168 IndentKind::Tab => "\t".repeat(indent.len as usize),
3169 };
3170 let point = Point::new(row.0, 0);
3171 indent_edits.push((point..point, text));
3172 }
3173 }
3174 editor.edit(indent_edits, cx);
3175 });
3176 }
3177
3178 pub fn newline_below(&mut self, _: &NewlineBelow, cx: &mut ViewContext<Self>) {
3179 let buffer = self.buffer.read(cx);
3180 let snapshot = buffer.snapshot(cx);
3181
3182 let mut edits = Vec::new();
3183 let mut rows = Vec::new();
3184 let mut rows_inserted = 0;
3185
3186 for selection in self.selections.all_adjusted(cx) {
3187 let cursor = selection.head();
3188 let row = cursor.row;
3189
3190 let point = Point::new(row + 1, 0);
3191 let start_of_line = snapshot.clip_point(point, Bias::Left);
3192
3193 let newline = "\n".to_string();
3194 edits.push((start_of_line..start_of_line, newline));
3195
3196 rows_inserted += 1;
3197 rows.push(row + rows_inserted);
3198 }
3199
3200 self.transact(cx, |editor, cx| {
3201 editor.edit(edits, cx);
3202
3203 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
3204 let mut index = 0;
3205 s.move_cursors_with(|map, _, _| {
3206 let row = rows[index];
3207 index += 1;
3208
3209 let point = Point::new(row, 0);
3210 let boundary = map.next_line_boundary(point).1;
3211 let clipped = map.clip_point(boundary, Bias::Left);
3212
3213 (clipped, SelectionGoal::None)
3214 });
3215 });
3216
3217 let mut indent_edits = Vec::new();
3218 let multibuffer_snapshot = editor.buffer.read(cx).snapshot(cx);
3219 for row in rows {
3220 let indents = multibuffer_snapshot.suggested_indents(row..row + 1, cx);
3221 for (row, indent) in indents {
3222 if indent.len == 0 {
3223 continue;
3224 }
3225
3226 let text = match indent.kind {
3227 IndentKind::Space => " ".repeat(indent.len as usize),
3228 IndentKind::Tab => "\t".repeat(indent.len as usize),
3229 };
3230 let point = Point::new(row.0, 0);
3231 indent_edits.push((point..point, text));
3232 }
3233 }
3234 editor.edit(indent_edits, cx);
3235 });
3236 }
3237
3238 pub fn insert(&mut self, text: &str, cx: &mut ViewContext<Self>) {
3239 let autoindent = text.is_empty().not().then(|| AutoindentMode::Block {
3240 original_indent_columns: Vec::new(),
3241 });
3242 self.insert_with_autoindent_mode(text, autoindent, cx);
3243 }
3244
3245 fn insert_with_autoindent_mode(
3246 &mut self,
3247 text: &str,
3248 autoindent_mode: Option<AutoindentMode>,
3249 cx: &mut ViewContext<Self>,
3250 ) {
3251 if self.read_only(cx) {
3252 return;
3253 }
3254
3255 let text: Arc<str> = text.into();
3256 self.transact(cx, |this, cx| {
3257 let old_selections = this.selections.all_adjusted(cx);
3258 let selection_anchors = this.buffer.update(cx, |buffer, cx| {
3259 let anchors = {
3260 let snapshot = buffer.read(cx);
3261 old_selections
3262 .iter()
3263 .map(|s| {
3264 let anchor = snapshot.anchor_after(s.head());
3265 s.map(|_| anchor)
3266 })
3267 .collect::<Vec<_>>()
3268 };
3269 buffer.edit(
3270 old_selections
3271 .iter()
3272 .map(|s| (s.start..s.end, text.clone())),
3273 autoindent_mode,
3274 cx,
3275 );
3276 anchors
3277 });
3278
3279 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
3280 s.select_anchors(selection_anchors);
3281 })
3282 });
3283 }
3284
3285 fn trigger_completion_on_input(
3286 &mut self,
3287 text: &str,
3288 trigger_in_words: bool,
3289 cx: &mut ViewContext<Self>,
3290 ) {
3291 if self.is_completion_trigger(text, trigger_in_words, cx) {
3292 self.show_completions(
3293 &ShowCompletions {
3294 trigger: Some(text.to_owned()).filter(|x| !x.is_empty()),
3295 },
3296 cx,
3297 );
3298 } else {
3299 self.hide_context_menu(cx);
3300 }
3301 }
3302
3303 fn is_completion_trigger(
3304 &self,
3305 text: &str,
3306 trigger_in_words: bool,
3307 cx: &mut ViewContext<Self>,
3308 ) -> bool {
3309 let position = self.selections.newest_anchor().head();
3310 let multibuffer = self.buffer.read(cx);
3311 let Some(buffer) = position
3312 .buffer_id
3313 .and_then(|buffer_id| multibuffer.buffer(buffer_id).clone())
3314 else {
3315 return false;
3316 };
3317
3318 if let Some(completion_provider) = &self.completion_provider {
3319 completion_provider.is_completion_trigger(
3320 &buffer,
3321 position.text_anchor,
3322 text,
3323 trigger_in_words,
3324 cx,
3325 )
3326 } else {
3327 false
3328 }
3329 }
3330
3331 /// If any empty selections is touching the start of its innermost containing autoclose
3332 /// region, expand it to select the brackets.
3333 fn select_autoclose_pair(&mut self, cx: &mut ViewContext<Self>) {
3334 let selections = self.selections.all::<usize>(cx);
3335 let buffer = self.buffer.read(cx).read(cx);
3336 let new_selections = self
3337 .selections_with_autoclose_regions(selections, &buffer)
3338 .map(|(mut selection, region)| {
3339 if !selection.is_empty() {
3340 return selection;
3341 }
3342
3343 if let Some(region) = region {
3344 let mut range = region.range.to_offset(&buffer);
3345 if selection.start == range.start && range.start >= region.pair.start.len() {
3346 range.start -= region.pair.start.len();
3347 if buffer.contains_str_at(range.start, ®ion.pair.start)
3348 && buffer.contains_str_at(range.end, ®ion.pair.end)
3349 {
3350 range.end += region.pair.end.len();
3351 selection.start = range.start;
3352 selection.end = range.end;
3353
3354 return selection;
3355 }
3356 }
3357 }
3358
3359 let always_treat_brackets_as_autoclosed = buffer
3360 .settings_at(selection.start, cx)
3361 .always_treat_brackets_as_autoclosed;
3362
3363 if !always_treat_brackets_as_autoclosed {
3364 return selection;
3365 }
3366
3367 if let Some(scope) = buffer.language_scope_at(selection.start) {
3368 for (pair, enabled) in scope.brackets() {
3369 if !enabled || !pair.close {
3370 continue;
3371 }
3372
3373 if buffer.contains_str_at(selection.start, &pair.end) {
3374 let pair_start_len = pair.start.len();
3375 if buffer.contains_str_at(
3376 selection.start.saturating_sub(pair_start_len),
3377 &pair.start,
3378 ) {
3379 selection.start -= pair_start_len;
3380 selection.end += pair.end.len();
3381
3382 return selection;
3383 }
3384 }
3385 }
3386 }
3387
3388 selection
3389 })
3390 .collect();
3391
3392 drop(buffer);
3393 self.change_selections(None, cx, |selections| selections.select(new_selections));
3394 }
3395
3396 /// Iterate the given selections, and for each one, find the smallest surrounding
3397 /// autoclose region. This uses the ordering of the selections and the autoclose
3398 /// regions to avoid repeated comparisons.
3399 fn selections_with_autoclose_regions<'a, D: ToOffset + Clone>(
3400 &'a self,
3401 selections: impl IntoIterator<Item = Selection<D>>,
3402 buffer: &'a MultiBufferSnapshot,
3403 ) -> impl Iterator<Item = (Selection<D>, Option<&'a AutocloseRegion>)> {
3404 let mut i = 0;
3405 let mut regions = self.autoclose_regions.as_slice();
3406 selections.into_iter().map(move |selection| {
3407 let range = selection.start.to_offset(buffer)..selection.end.to_offset(buffer);
3408
3409 let mut enclosing = None;
3410 while let Some(pair_state) = regions.get(i) {
3411 if pair_state.range.end.to_offset(buffer) < range.start {
3412 regions = ®ions[i + 1..];
3413 i = 0;
3414 } else if pair_state.range.start.to_offset(buffer) > range.end {
3415 break;
3416 } else {
3417 if pair_state.selection_id == selection.id {
3418 enclosing = Some(pair_state);
3419 }
3420 i += 1;
3421 }
3422 }
3423
3424 (selection, enclosing)
3425 })
3426 }
3427
3428 /// Remove any autoclose regions that no longer contain their selection.
3429 fn invalidate_autoclose_regions(
3430 &mut self,
3431 mut selections: &[Selection<Anchor>],
3432 buffer: &MultiBufferSnapshot,
3433 ) {
3434 self.autoclose_regions.retain(|state| {
3435 let mut i = 0;
3436 while let Some(selection) = selections.get(i) {
3437 if selection.end.cmp(&state.range.start, buffer).is_lt() {
3438 selections = &selections[1..];
3439 continue;
3440 }
3441 if selection.start.cmp(&state.range.end, buffer).is_gt() {
3442 break;
3443 }
3444 if selection.id == state.selection_id {
3445 return true;
3446 } else {
3447 i += 1;
3448 }
3449 }
3450 false
3451 });
3452 }
3453
3454 fn completion_query(buffer: &MultiBufferSnapshot, position: impl ToOffset) -> Option<String> {
3455 let offset = position.to_offset(buffer);
3456 let (word_range, kind) = buffer.surrounding_word(offset, true);
3457 if offset > word_range.start && kind == Some(CharKind::Word) {
3458 Some(
3459 buffer
3460 .text_for_range(word_range.start..offset)
3461 .collect::<String>(),
3462 )
3463 } else {
3464 None
3465 }
3466 }
3467
3468 pub fn toggle_inlay_hints(&mut self, _: &ToggleInlayHints, cx: &mut ViewContext<Self>) {
3469 self.refresh_inlay_hints(
3470 InlayHintRefreshReason::Toggle(!self.inlay_hint_cache.enabled),
3471 cx,
3472 );
3473 }
3474
3475 pub fn inlay_hints_enabled(&self) -> bool {
3476 self.inlay_hint_cache.enabled
3477 }
3478
3479 fn refresh_inlay_hints(&mut self, reason: InlayHintRefreshReason, cx: &mut ViewContext<Self>) {
3480 if self.semantics_provider.is_none() || self.mode != EditorMode::Full {
3481 return;
3482 }
3483
3484 let reason_description = reason.description();
3485 let ignore_debounce = matches!(
3486 reason,
3487 InlayHintRefreshReason::SettingsChange(_)
3488 | InlayHintRefreshReason::Toggle(_)
3489 | InlayHintRefreshReason::ExcerptsRemoved(_)
3490 );
3491 let (invalidate_cache, required_languages) = match reason {
3492 InlayHintRefreshReason::Toggle(enabled) => {
3493 self.inlay_hint_cache.enabled = enabled;
3494 if enabled {
3495 (InvalidationStrategy::RefreshRequested, None)
3496 } else {
3497 self.inlay_hint_cache.clear();
3498 self.splice_inlays(
3499 self.visible_inlay_hints(cx)
3500 .iter()
3501 .map(|inlay| inlay.id)
3502 .collect(),
3503 Vec::new(),
3504 cx,
3505 );
3506 return;
3507 }
3508 }
3509 InlayHintRefreshReason::SettingsChange(new_settings) => {
3510 match self.inlay_hint_cache.update_settings(
3511 &self.buffer,
3512 new_settings,
3513 self.visible_inlay_hints(cx),
3514 cx,
3515 ) {
3516 ControlFlow::Break(Some(InlaySplice {
3517 to_remove,
3518 to_insert,
3519 })) => {
3520 self.splice_inlays(to_remove, to_insert, cx);
3521 return;
3522 }
3523 ControlFlow::Break(None) => return,
3524 ControlFlow::Continue(()) => (InvalidationStrategy::RefreshRequested, None),
3525 }
3526 }
3527 InlayHintRefreshReason::ExcerptsRemoved(excerpts_removed) => {
3528 if let Some(InlaySplice {
3529 to_remove,
3530 to_insert,
3531 }) = self.inlay_hint_cache.remove_excerpts(excerpts_removed)
3532 {
3533 self.splice_inlays(to_remove, to_insert, cx);
3534 }
3535 return;
3536 }
3537 InlayHintRefreshReason::NewLinesShown => (InvalidationStrategy::None, None),
3538 InlayHintRefreshReason::BufferEdited(buffer_languages) => {
3539 (InvalidationStrategy::BufferEdited, Some(buffer_languages))
3540 }
3541 InlayHintRefreshReason::RefreshRequested => {
3542 (InvalidationStrategy::RefreshRequested, None)
3543 }
3544 };
3545
3546 if let Some(InlaySplice {
3547 to_remove,
3548 to_insert,
3549 }) = self.inlay_hint_cache.spawn_hint_refresh(
3550 reason_description,
3551 self.excerpts_for_inlay_hints_query(required_languages.as_ref(), cx),
3552 invalidate_cache,
3553 ignore_debounce,
3554 cx,
3555 ) {
3556 self.splice_inlays(to_remove, to_insert, cx);
3557 }
3558 }
3559
3560 fn visible_inlay_hints(&self, cx: &ViewContext<Editor>) -> Vec<Inlay> {
3561 self.display_map
3562 .read(cx)
3563 .current_inlays()
3564 .filter(move |inlay| matches!(inlay.id, InlayId::Hint(_)))
3565 .cloned()
3566 .collect()
3567 }
3568
3569 pub fn excerpts_for_inlay_hints_query(
3570 &self,
3571 restrict_to_languages: Option<&HashSet<Arc<Language>>>,
3572 cx: &mut ViewContext<Editor>,
3573 ) -> HashMap<ExcerptId, (Model<Buffer>, clock::Global, Range<usize>)> {
3574 let Some(project) = self.project.as_ref() else {
3575 return HashMap::default();
3576 };
3577 let project = project.read(cx);
3578 let multi_buffer = self.buffer().read(cx);
3579 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
3580 let multi_buffer_visible_start = self
3581 .scroll_manager
3582 .anchor()
3583 .anchor
3584 .to_point(&multi_buffer_snapshot);
3585 let multi_buffer_visible_end = multi_buffer_snapshot.clip_point(
3586 multi_buffer_visible_start
3587 + Point::new(self.visible_line_count().unwrap_or(0.).ceil() as u32, 0),
3588 Bias::Left,
3589 );
3590 let multi_buffer_visible_range = multi_buffer_visible_start..multi_buffer_visible_end;
3591 multi_buffer_snapshot
3592 .range_to_buffer_ranges(multi_buffer_visible_range)
3593 .into_iter()
3594 .filter(|(_, excerpt_visible_range)| !excerpt_visible_range.is_empty())
3595 .filter_map(|(excerpt, excerpt_visible_range)| {
3596 let buffer_file = project::File::from_dyn(excerpt.buffer().file())?;
3597 let buffer_worktree = project.worktree_for_id(buffer_file.worktree_id(cx), cx)?;
3598 let worktree_entry = buffer_worktree
3599 .read(cx)
3600 .entry_for_id(buffer_file.project_entry_id(cx)?)?;
3601 if worktree_entry.is_ignored {
3602 return None;
3603 }
3604
3605 let language = excerpt.buffer().language()?;
3606 if let Some(restrict_to_languages) = restrict_to_languages {
3607 if !restrict_to_languages.contains(language) {
3608 return None;
3609 }
3610 }
3611 Some((
3612 excerpt.id(),
3613 (
3614 multi_buffer.buffer(excerpt.buffer_id()).unwrap(),
3615 excerpt.buffer().version().clone(),
3616 excerpt_visible_range,
3617 ),
3618 ))
3619 })
3620 .collect()
3621 }
3622
3623 pub fn text_layout_details(&self, cx: &WindowContext) -> TextLayoutDetails {
3624 TextLayoutDetails {
3625 text_system: cx.text_system().clone(),
3626 editor_style: self.style.clone().unwrap(),
3627 rem_size: cx.rem_size(),
3628 scroll_anchor: self.scroll_manager.anchor(),
3629 visible_rows: self.visible_line_count(),
3630 vertical_scroll_margin: self.scroll_manager.vertical_scroll_margin,
3631 }
3632 }
3633
3634 pub fn splice_inlays(
3635 &self,
3636 to_remove: Vec<InlayId>,
3637 to_insert: Vec<Inlay>,
3638 cx: &mut ViewContext<Self>,
3639 ) {
3640 self.display_map.update(cx, |display_map, cx| {
3641 display_map.splice_inlays(to_remove, to_insert, cx)
3642 });
3643 cx.notify();
3644 }
3645
3646 fn trigger_on_type_formatting(
3647 &self,
3648 input: String,
3649 cx: &mut ViewContext<Self>,
3650 ) -> Option<Task<Result<()>>> {
3651 if input.len() != 1 {
3652 return None;
3653 }
3654
3655 let project = self.project.as_ref()?;
3656 let position = self.selections.newest_anchor().head();
3657 let (buffer, buffer_position) = self
3658 .buffer
3659 .read(cx)
3660 .text_anchor_for_position(position, cx)?;
3661
3662 let settings = language_settings::language_settings(
3663 buffer
3664 .read(cx)
3665 .language_at(buffer_position)
3666 .map(|l| l.name()),
3667 buffer.read(cx).file(),
3668 cx,
3669 );
3670 if !settings.use_on_type_format {
3671 return None;
3672 }
3673
3674 // OnTypeFormatting returns a list of edits, no need to pass them between Zed instances,
3675 // hence we do LSP request & edit on host side only — add formats to host's history.
3676 let push_to_lsp_host_history = true;
3677 // If this is not the host, append its history with new edits.
3678 let push_to_client_history = project.read(cx).is_via_collab();
3679
3680 let on_type_formatting = project.update(cx, |project, cx| {
3681 project.on_type_format(
3682 buffer.clone(),
3683 buffer_position,
3684 input,
3685 push_to_lsp_host_history,
3686 cx,
3687 )
3688 });
3689 Some(cx.spawn(|editor, mut cx| async move {
3690 if let Some(transaction) = on_type_formatting.await? {
3691 if push_to_client_history {
3692 buffer
3693 .update(&mut cx, |buffer, _| {
3694 buffer.push_transaction(transaction, Instant::now());
3695 })
3696 .ok();
3697 }
3698 editor.update(&mut cx, |editor, cx| {
3699 editor.refresh_document_highlights(cx);
3700 })?;
3701 }
3702 Ok(())
3703 }))
3704 }
3705
3706 pub fn show_completions(&mut self, options: &ShowCompletions, cx: &mut ViewContext<Self>) {
3707 if self.pending_rename.is_some() {
3708 return;
3709 }
3710
3711 let Some(provider) = self.completion_provider.as_ref() else {
3712 return;
3713 };
3714
3715 if !self.snippet_stack.is_empty() && self.context_menu.borrow().as_ref().is_some() {
3716 return;
3717 }
3718
3719 let position = self.selections.newest_anchor().head();
3720 let (buffer, buffer_position) =
3721 if let Some(output) = self.buffer.read(cx).text_anchor_for_position(position, cx) {
3722 output
3723 } else {
3724 return;
3725 };
3726 let show_completion_documentation = buffer
3727 .read(cx)
3728 .snapshot()
3729 .settings_at(buffer_position, cx)
3730 .show_completion_documentation;
3731
3732 let query = Self::completion_query(&self.buffer.read(cx).read(cx), position);
3733
3734 let trigger_kind = match &options.trigger {
3735 Some(trigger) if buffer.read(cx).completion_triggers().contains(trigger) => {
3736 CompletionTriggerKind::TRIGGER_CHARACTER
3737 }
3738 _ => CompletionTriggerKind::INVOKED,
3739 };
3740 let completion_context = CompletionContext {
3741 trigger_character: options.trigger.as_ref().and_then(|trigger| {
3742 if trigger_kind == CompletionTriggerKind::TRIGGER_CHARACTER {
3743 Some(String::from(trigger))
3744 } else {
3745 None
3746 }
3747 }),
3748 trigger_kind,
3749 };
3750 let completions = provider.completions(&buffer, buffer_position, completion_context, cx);
3751 let sort_completions = provider.sort_completions();
3752
3753 let id = post_inc(&mut self.next_completion_id);
3754 let task = cx.spawn(|editor, mut cx| {
3755 async move {
3756 editor.update(&mut cx, |this, _| {
3757 this.completion_tasks.retain(|(task_id, _)| *task_id >= id);
3758 })?;
3759 let completions = completions.await.log_err();
3760 let menu = if let Some(completions) = completions {
3761 let mut menu = CompletionsMenu::new(
3762 id,
3763 sort_completions,
3764 show_completion_documentation,
3765 position,
3766 buffer.clone(),
3767 completions.into(),
3768 );
3769
3770 menu.filter(query.as_deref(), cx.background_executor().clone())
3771 .await;
3772
3773 menu.visible().then_some(menu)
3774 } else {
3775 None
3776 };
3777
3778 editor.update(&mut cx, |editor, cx| {
3779 match editor.context_menu.borrow().as_ref() {
3780 None => {}
3781 Some(CodeContextMenu::Completions(prev_menu)) => {
3782 if prev_menu.id > id {
3783 return;
3784 }
3785 }
3786 _ => return,
3787 }
3788
3789 if editor.focus_handle.is_focused(cx) && menu.is_some() {
3790 let mut menu = menu.unwrap();
3791 menu.resolve_visible_completions(editor.completion_provider.as_deref(), cx);
3792
3793 if editor.show_inline_completions_in_menu(cx) {
3794 if let Some(hint) = editor.inline_completion_menu_hint(cx) {
3795 menu.show_inline_completion_hint(hint);
3796 }
3797 } else {
3798 editor.discard_inline_completion(false, cx);
3799 }
3800
3801 *editor.context_menu.borrow_mut() =
3802 Some(CodeContextMenu::Completions(menu));
3803
3804 cx.notify();
3805 } else if editor.completion_tasks.len() <= 1 {
3806 // If there are no more completion tasks and the last menu was
3807 // empty, we should hide it.
3808 let was_hidden = editor.hide_context_menu(cx).is_none();
3809 // If it was already hidden and we don't show inline
3810 // completions in the menu, we should also show the
3811 // inline-completion when available.
3812 if was_hidden && editor.show_inline_completions_in_menu(cx) {
3813 editor.update_visible_inline_completion(cx);
3814 }
3815 }
3816 })?;
3817
3818 Ok::<_, anyhow::Error>(())
3819 }
3820 .log_err()
3821 });
3822
3823 self.completion_tasks.push((id, task));
3824 }
3825
3826 pub fn confirm_completion(
3827 &mut self,
3828 action: &ConfirmCompletion,
3829 cx: &mut ViewContext<Self>,
3830 ) -> Option<Task<Result<()>>> {
3831 self.do_completion(action.item_ix, CompletionIntent::Complete, cx)
3832 }
3833
3834 pub fn compose_completion(
3835 &mut self,
3836 action: &ComposeCompletion,
3837 cx: &mut ViewContext<Self>,
3838 ) -> Option<Task<Result<()>>> {
3839 self.do_completion(action.item_ix, CompletionIntent::Compose, cx)
3840 }
3841
3842 fn toggle_zed_predict_tos(&mut self, cx: &mut ViewContext<Self>) {
3843 let (Some(workspace), Some(project)) = (self.workspace(), self.project.as_ref()) else {
3844 return;
3845 };
3846
3847 ZedPredictTos::toggle(workspace, project.read(cx).user_store().clone(), cx);
3848 }
3849
3850 fn do_completion(
3851 &mut self,
3852 item_ix: Option<usize>,
3853 intent: CompletionIntent,
3854 cx: &mut ViewContext<Editor>,
3855 ) -> Option<Task<std::result::Result<(), anyhow::Error>>> {
3856 use language::ToOffset as _;
3857
3858 {
3859 let context_menu = self.context_menu.borrow();
3860 if let CodeContextMenu::Completions(menu) = context_menu.as_ref()? {
3861 let entries = menu.entries.borrow();
3862 let entry = entries.get(item_ix.unwrap_or(menu.selected_item));
3863 match entry {
3864 Some(CompletionEntry::InlineCompletionHint(
3865 InlineCompletionMenuHint::Loading,
3866 )) => return Some(Task::ready(Ok(()))),
3867 Some(CompletionEntry::InlineCompletionHint(InlineCompletionMenuHint::None)) => {
3868 drop(entries);
3869 drop(context_menu);
3870 self.context_menu_next(&Default::default(), cx);
3871 return Some(Task::ready(Ok(())));
3872 }
3873 Some(CompletionEntry::InlineCompletionHint(
3874 InlineCompletionMenuHint::PendingTermsAcceptance,
3875 )) => {
3876 drop(entries);
3877 drop(context_menu);
3878 self.toggle_zed_predict_tos(cx);
3879 return Some(Task::ready(Ok(())));
3880 }
3881 _ => {}
3882 }
3883 }
3884 }
3885
3886 let completions_menu =
3887 if let CodeContextMenu::Completions(menu) = self.hide_context_menu(cx)? {
3888 menu
3889 } else {
3890 return None;
3891 };
3892
3893 let entries = completions_menu.entries.borrow();
3894 let mat = entries.get(item_ix.unwrap_or(completions_menu.selected_item))?;
3895 let mat = match mat {
3896 CompletionEntry::InlineCompletionHint(_) => {
3897 self.accept_inline_completion(&AcceptInlineCompletion, cx);
3898 cx.stop_propagation();
3899 return Some(Task::ready(Ok(())));
3900 }
3901 CompletionEntry::Match(mat) => {
3902 if self.show_inline_completions_in_menu(cx) {
3903 self.discard_inline_completion(true, cx);
3904 }
3905 mat
3906 }
3907 };
3908 let candidate_id = mat.candidate_id;
3909 drop(entries);
3910
3911 let buffer_handle = completions_menu.buffer;
3912 let completion = completions_menu
3913 .completions
3914 .borrow()
3915 .get(candidate_id)?
3916 .clone();
3917 cx.stop_propagation();
3918
3919 let snippet;
3920 let text;
3921
3922 if completion.is_snippet() {
3923 snippet = Some(Snippet::parse(&completion.new_text).log_err()?);
3924 text = snippet.as_ref().unwrap().text.clone();
3925 } else {
3926 snippet = None;
3927 text = completion.new_text.clone();
3928 };
3929 let selections = self.selections.all::<usize>(cx);
3930 let buffer = buffer_handle.read(cx);
3931 let old_range = completion.old_range.to_offset(buffer);
3932 let old_text = buffer.text_for_range(old_range.clone()).collect::<String>();
3933
3934 let newest_selection = self.selections.newest_anchor();
3935 if newest_selection.start.buffer_id != Some(buffer_handle.read(cx).remote_id()) {
3936 return None;
3937 }
3938
3939 let lookbehind = newest_selection
3940 .start
3941 .text_anchor
3942 .to_offset(buffer)
3943 .saturating_sub(old_range.start);
3944 let lookahead = old_range
3945 .end
3946 .saturating_sub(newest_selection.end.text_anchor.to_offset(buffer));
3947 let mut common_prefix_len = old_text
3948 .bytes()
3949 .zip(text.bytes())
3950 .take_while(|(a, b)| a == b)
3951 .count();
3952
3953 let snapshot = self.buffer.read(cx).snapshot(cx);
3954 let mut range_to_replace: Option<Range<isize>> = None;
3955 let mut ranges = Vec::new();
3956 let mut linked_edits = HashMap::<_, Vec<_>>::default();
3957 for selection in &selections {
3958 if snapshot.contains_str_at(selection.start.saturating_sub(lookbehind), &old_text) {
3959 let start = selection.start.saturating_sub(lookbehind);
3960 let end = selection.end + lookahead;
3961 if selection.id == newest_selection.id {
3962 range_to_replace = Some(
3963 ((start + common_prefix_len) as isize - selection.start as isize)
3964 ..(end as isize - selection.start as isize),
3965 );
3966 }
3967 ranges.push(start + common_prefix_len..end);
3968 } else {
3969 common_prefix_len = 0;
3970 ranges.clear();
3971 ranges.extend(selections.iter().map(|s| {
3972 if s.id == newest_selection.id {
3973 range_to_replace = Some(
3974 old_range.start.to_offset_utf16(&snapshot).0 as isize
3975 - selection.start as isize
3976 ..old_range.end.to_offset_utf16(&snapshot).0 as isize
3977 - selection.start as isize,
3978 );
3979 old_range.clone()
3980 } else {
3981 s.start..s.end
3982 }
3983 }));
3984 break;
3985 }
3986 if !self.linked_edit_ranges.is_empty() {
3987 let start_anchor = snapshot.anchor_before(selection.head());
3988 let end_anchor = snapshot.anchor_after(selection.tail());
3989 if let Some(ranges) = self
3990 .linked_editing_ranges_for(start_anchor.text_anchor..end_anchor.text_anchor, cx)
3991 {
3992 for (buffer, edits) in ranges {
3993 linked_edits.entry(buffer.clone()).or_default().extend(
3994 edits
3995 .into_iter()
3996 .map(|range| (range, text[common_prefix_len..].to_owned())),
3997 );
3998 }
3999 }
4000 }
4001 }
4002 let text = &text[common_prefix_len..];
4003
4004 cx.emit(EditorEvent::InputHandled {
4005 utf16_range_to_replace: range_to_replace,
4006 text: text.into(),
4007 });
4008
4009 self.transact(cx, |this, cx| {
4010 if let Some(mut snippet) = snippet {
4011 snippet.text = text.to_string();
4012 for tabstop in snippet
4013 .tabstops
4014 .iter_mut()
4015 .flat_map(|tabstop| tabstop.ranges.iter_mut())
4016 {
4017 tabstop.start -= common_prefix_len as isize;
4018 tabstop.end -= common_prefix_len as isize;
4019 }
4020
4021 this.insert_snippet(&ranges, snippet, cx).log_err();
4022 } else {
4023 this.buffer.update(cx, |buffer, cx| {
4024 buffer.edit(
4025 ranges.iter().map(|range| (range.clone(), text)),
4026 this.autoindent_mode.clone(),
4027 cx,
4028 );
4029 });
4030 }
4031 for (buffer, edits) in linked_edits {
4032 buffer.update(cx, |buffer, cx| {
4033 let snapshot = buffer.snapshot();
4034 let edits = edits
4035 .into_iter()
4036 .map(|(range, text)| {
4037 use text::ToPoint as TP;
4038 let end_point = TP::to_point(&range.end, &snapshot);
4039 let start_point = TP::to_point(&range.start, &snapshot);
4040 (start_point..end_point, text)
4041 })
4042 .sorted_by_key(|(range, _)| range.start)
4043 .collect::<Vec<_>>();
4044 buffer.edit(edits, None, cx);
4045 })
4046 }
4047
4048 this.refresh_inline_completion(true, false, cx);
4049 });
4050
4051 let show_new_completions_on_confirm = completion
4052 .confirm
4053 .as_ref()
4054 .map_or(false, |confirm| confirm(intent, cx));
4055 if show_new_completions_on_confirm {
4056 self.show_completions(&ShowCompletions { trigger: None }, cx);
4057 }
4058
4059 let provider = self.completion_provider.as_ref()?;
4060 drop(completion);
4061 let apply_edits = provider.apply_additional_edits_for_completion(
4062 buffer_handle,
4063 completions_menu.completions.clone(),
4064 candidate_id,
4065 true,
4066 cx,
4067 );
4068
4069 let editor_settings = EditorSettings::get_global(cx);
4070 if editor_settings.show_signature_help_after_edits || editor_settings.auto_signature_help {
4071 // After the code completion is finished, users often want to know what signatures are needed.
4072 // so we should automatically call signature_help
4073 self.show_signature_help(&ShowSignatureHelp, cx);
4074 }
4075
4076 Some(cx.foreground_executor().spawn(async move {
4077 apply_edits.await?;
4078 Ok(())
4079 }))
4080 }
4081
4082 pub fn toggle_code_actions(&mut self, action: &ToggleCodeActions, cx: &mut ViewContext<Self>) {
4083 let mut context_menu = self.context_menu.borrow_mut();
4084 if let Some(CodeContextMenu::CodeActions(code_actions)) = context_menu.as_ref() {
4085 if code_actions.deployed_from_indicator == action.deployed_from_indicator {
4086 // Toggle if we're selecting the same one
4087 *context_menu = None;
4088 cx.notify();
4089 return;
4090 } else {
4091 // Otherwise, clear it and start a new one
4092 *context_menu = None;
4093 cx.notify();
4094 }
4095 }
4096 drop(context_menu);
4097 let snapshot = self.snapshot(cx);
4098 let deployed_from_indicator = action.deployed_from_indicator;
4099 let mut task = self.code_actions_task.take();
4100 let action = action.clone();
4101 cx.spawn(|editor, mut cx| async move {
4102 while let Some(prev_task) = task {
4103 prev_task.await.log_err();
4104 task = editor.update(&mut cx, |this, _| this.code_actions_task.take())?;
4105 }
4106
4107 let spawned_test_task = editor.update(&mut cx, |editor, cx| {
4108 if editor.focus_handle.is_focused(cx) {
4109 let multibuffer_point = action
4110 .deployed_from_indicator
4111 .map(|row| DisplayPoint::new(row, 0).to_point(&snapshot))
4112 .unwrap_or_else(|| editor.selections.newest::<Point>(cx).head());
4113 let (buffer, buffer_row) = snapshot
4114 .buffer_snapshot
4115 .buffer_line_for_row(MultiBufferRow(multibuffer_point.row))
4116 .and_then(|(buffer_snapshot, range)| {
4117 editor
4118 .buffer
4119 .read(cx)
4120 .buffer(buffer_snapshot.remote_id())
4121 .map(|buffer| (buffer, range.start.row))
4122 })?;
4123 let (_, code_actions) = editor
4124 .available_code_actions
4125 .clone()
4126 .and_then(|(location, code_actions)| {
4127 let snapshot = location.buffer.read(cx).snapshot();
4128 let point_range = location.range.to_point(&snapshot);
4129 let point_range = point_range.start.row..=point_range.end.row;
4130 if point_range.contains(&buffer_row) {
4131 Some((location, code_actions))
4132 } else {
4133 None
4134 }
4135 })
4136 .unzip();
4137 let buffer_id = buffer.read(cx).remote_id();
4138 let tasks = editor
4139 .tasks
4140 .get(&(buffer_id, buffer_row))
4141 .map(|t| Arc::new(t.to_owned()));
4142 if tasks.is_none() && code_actions.is_none() {
4143 return None;
4144 }
4145
4146 editor.completion_tasks.clear();
4147 editor.discard_inline_completion(false, cx);
4148 let task_context =
4149 tasks
4150 .as_ref()
4151 .zip(editor.project.clone())
4152 .map(|(tasks, project)| {
4153 Self::build_tasks_context(&project, &buffer, buffer_row, tasks, cx)
4154 });
4155
4156 Some(cx.spawn(|editor, mut cx| async move {
4157 let task_context = match task_context {
4158 Some(task_context) => task_context.await,
4159 None => None,
4160 };
4161 let resolved_tasks =
4162 tasks.zip(task_context).map(|(tasks, task_context)| {
4163 Rc::new(ResolvedTasks {
4164 templates: tasks.resolve(&task_context).collect(),
4165 position: snapshot.buffer_snapshot.anchor_before(Point::new(
4166 multibuffer_point.row,
4167 tasks.column,
4168 )),
4169 })
4170 });
4171 let spawn_straight_away = resolved_tasks
4172 .as_ref()
4173 .map_or(false, |tasks| tasks.templates.len() == 1)
4174 && code_actions
4175 .as_ref()
4176 .map_or(true, |actions| actions.is_empty());
4177 if let Ok(task) = editor.update(&mut cx, |editor, cx| {
4178 *editor.context_menu.borrow_mut() =
4179 Some(CodeContextMenu::CodeActions(CodeActionsMenu {
4180 buffer,
4181 actions: CodeActionContents {
4182 tasks: resolved_tasks,
4183 actions: code_actions,
4184 },
4185 selected_item: Default::default(),
4186 scroll_handle: UniformListScrollHandle::default(),
4187 deployed_from_indicator,
4188 }));
4189 if spawn_straight_away {
4190 if let Some(task) = editor.confirm_code_action(
4191 &ConfirmCodeAction { item_ix: Some(0) },
4192 cx,
4193 ) {
4194 cx.notify();
4195 return task;
4196 }
4197 }
4198 cx.notify();
4199 Task::ready(Ok(()))
4200 }) {
4201 task.await
4202 } else {
4203 Ok(())
4204 }
4205 }))
4206 } else {
4207 Some(Task::ready(Ok(())))
4208 }
4209 })?;
4210 if let Some(task) = spawned_test_task {
4211 task.await?;
4212 }
4213
4214 Ok::<_, anyhow::Error>(())
4215 })
4216 .detach_and_log_err(cx);
4217 }
4218
4219 pub fn confirm_code_action(
4220 &mut self,
4221 action: &ConfirmCodeAction,
4222 cx: &mut ViewContext<Self>,
4223 ) -> Option<Task<Result<()>>> {
4224 let actions_menu = if let CodeContextMenu::CodeActions(menu) = self.hide_context_menu(cx)? {
4225 menu
4226 } else {
4227 return None;
4228 };
4229 let action_ix = action.item_ix.unwrap_or(actions_menu.selected_item);
4230 let action = actions_menu.actions.get(action_ix)?;
4231 let title = action.label();
4232 let buffer = actions_menu.buffer;
4233 let workspace = self.workspace()?;
4234
4235 match action {
4236 CodeActionsItem::Task(task_source_kind, resolved_task) => {
4237 workspace.update(cx, |workspace, cx| {
4238 workspace::tasks::schedule_resolved_task(
4239 workspace,
4240 task_source_kind,
4241 resolved_task,
4242 false,
4243 cx,
4244 );
4245
4246 Some(Task::ready(Ok(())))
4247 })
4248 }
4249 CodeActionsItem::CodeAction {
4250 excerpt_id,
4251 action,
4252 provider,
4253 } => {
4254 let apply_code_action =
4255 provider.apply_code_action(buffer, action, excerpt_id, true, cx);
4256 let workspace = workspace.downgrade();
4257 Some(cx.spawn(|editor, cx| async move {
4258 let project_transaction = apply_code_action.await?;
4259 Self::open_project_transaction(
4260 &editor,
4261 workspace,
4262 project_transaction,
4263 title,
4264 cx,
4265 )
4266 .await
4267 }))
4268 }
4269 }
4270 }
4271
4272 pub async fn open_project_transaction(
4273 this: &WeakView<Editor>,
4274 workspace: WeakView<Workspace>,
4275 transaction: ProjectTransaction,
4276 title: String,
4277 mut cx: AsyncWindowContext,
4278 ) -> Result<()> {
4279 let mut entries = transaction.0.into_iter().collect::<Vec<_>>();
4280 cx.update(|cx| {
4281 entries.sort_unstable_by_key(|(buffer, _)| {
4282 buffer.read(cx).file().map(|f| f.path().clone())
4283 });
4284 })?;
4285
4286 // If the project transaction's edits are all contained within this editor, then
4287 // avoid opening a new editor to display them.
4288
4289 if let Some((buffer, transaction)) = entries.first() {
4290 if entries.len() == 1 {
4291 let excerpt = this.update(&mut cx, |editor, cx| {
4292 editor
4293 .buffer()
4294 .read(cx)
4295 .excerpt_containing(editor.selections.newest_anchor().head(), cx)
4296 })?;
4297 if let Some((_, excerpted_buffer, excerpt_range)) = excerpt {
4298 if excerpted_buffer == *buffer {
4299 let all_edits_within_excerpt = buffer.read_with(&cx, |buffer, _| {
4300 let excerpt_range = excerpt_range.to_offset(buffer);
4301 buffer
4302 .edited_ranges_for_transaction::<usize>(transaction)
4303 .all(|range| {
4304 excerpt_range.start <= range.start
4305 && excerpt_range.end >= range.end
4306 })
4307 })?;
4308
4309 if all_edits_within_excerpt {
4310 return Ok(());
4311 }
4312 }
4313 }
4314 }
4315 } else {
4316 return Ok(());
4317 }
4318
4319 let mut ranges_to_highlight = Vec::new();
4320 let excerpt_buffer = cx.new_model(|cx| {
4321 let mut multibuffer = MultiBuffer::new(Capability::ReadWrite).with_title(title);
4322 for (buffer_handle, transaction) in &entries {
4323 let buffer = buffer_handle.read(cx);
4324 ranges_to_highlight.extend(
4325 multibuffer.push_excerpts_with_context_lines(
4326 buffer_handle.clone(),
4327 buffer
4328 .edited_ranges_for_transaction::<usize>(transaction)
4329 .collect(),
4330 DEFAULT_MULTIBUFFER_CONTEXT,
4331 cx,
4332 ),
4333 );
4334 }
4335 multibuffer.push_transaction(entries.iter().map(|(b, t)| (b, t)), cx);
4336 multibuffer
4337 })?;
4338
4339 workspace.update(&mut cx, |workspace, cx| {
4340 let project = workspace.project().clone();
4341 let editor =
4342 cx.new_view(|cx| Editor::for_multibuffer(excerpt_buffer, Some(project), true, cx));
4343 workspace.add_item_to_active_pane(Box::new(editor.clone()), None, true, cx);
4344 editor.update(cx, |editor, cx| {
4345 editor.highlight_background::<Self>(
4346 &ranges_to_highlight,
4347 |theme| theme.editor_highlighted_line_background,
4348 cx,
4349 );
4350 });
4351 })?;
4352
4353 Ok(())
4354 }
4355
4356 pub fn clear_code_action_providers(&mut self) {
4357 self.code_action_providers.clear();
4358 self.available_code_actions.take();
4359 }
4360
4361 pub fn add_code_action_provider(
4362 &mut self,
4363 provider: Rc<dyn CodeActionProvider>,
4364 cx: &mut ViewContext<Self>,
4365 ) {
4366 if self
4367 .code_action_providers
4368 .iter()
4369 .any(|existing_provider| existing_provider.id() == provider.id())
4370 {
4371 return;
4372 }
4373
4374 self.code_action_providers.push(provider);
4375 self.refresh_code_actions(cx);
4376 }
4377
4378 pub fn remove_code_action_provider(&mut self, id: Arc<str>, cx: &mut ViewContext<Self>) {
4379 self.code_action_providers
4380 .retain(|provider| provider.id() != id);
4381 self.refresh_code_actions(cx);
4382 }
4383
4384 fn refresh_code_actions(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4385 let buffer = self.buffer.read(cx);
4386 let newest_selection = self.selections.newest_anchor().clone();
4387 let (start_buffer, start) = buffer.text_anchor_for_position(newest_selection.start, cx)?;
4388 let (end_buffer, end) = buffer.text_anchor_for_position(newest_selection.end, cx)?;
4389 if start_buffer != end_buffer {
4390 return None;
4391 }
4392
4393 self.code_actions_task = Some(cx.spawn(|this, mut cx| async move {
4394 cx.background_executor()
4395 .timer(CODE_ACTIONS_DEBOUNCE_TIMEOUT)
4396 .await;
4397
4398 let (providers, tasks) = this.update(&mut cx, |this, cx| {
4399 let providers = this.code_action_providers.clone();
4400 let tasks = this
4401 .code_action_providers
4402 .iter()
4403 .map(|provider| provider.code_actions(&start_buffer, start..end, cx))
4404 .collect::<Vec<_>>();
4405 (providers, tasks)
4406 })?;
4407
4408 let mut actions = Vec::new();
4409 for (provider, provider_actions) in
4410 providers.into_iter().zip(future::join_all(tasks).await)
4411 {
4412 if let Some(provider_actions) = provider_actions.log_err() {
4413 actions.extend(provider_actions.into_iter().map(|action| {
4414 AvailableCodeAction {
4415 excerpt_id: newest_selection.start.excerpt_id,
4416 action,
4417 provider: provider.clone(),
4418 }
4419 }));
4420 }
4421 }
4422
4423 this.update(&mut cx, |this, cx| {
4424 this.available_code_actions = if actions.is_empty() {
4425 None
4426 } else {
4427 Some((
4428 Location {
4429 buffer: start_buffer,
4430 range: start..end,
4431 },
4432 actions.into(),
4433 ))
4434 };
4435 cx.notify();
4436 })
4437 }));
4438 None
4439 }
4440
4441 fn start_inline_blame_timer(&mut self, cx: &mut ViewContext<Self>) {
4442 if let Some(delay) = ProjectSettings::get_global(cx).git.inline_blame_delay() {
4443 self.show_git_blame_inline = false;
4444
4445 self.show_git_blame_inline_delay_task = Some(cx.spawn(|this, mut cx| async move {
4446 cx.background_executor().timer(delay).await;
4447
4448 this.update(&mut cx, |this, cx| {
4449 this.show_git_blame_inline = true;
4450 cx.notify();
4451 })
4452 .log_err();
4453 }));
4454 }
4455 }
4456
4457 fn refresh_document_highlights(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4458 if self.pending_rename.is_some() {
4459 return None;
4460 }
4461
4462 let provider = self.semantics_provider.clone()?;
4463 let buffer = self.buffer.read(cx);
4464 let newest_selection = self.selections.newest_anchor().clone();
4465 let cursor_position = newest_selection.head();
4466 let (cursor_buffer, cursor_buffer_position) =
4467 buffer.text_anchor_for_position(cursor_position, cx)?;
4468 let (tail_buffer, _) = buffer.text_anchor_for_position(newest_selection.tail(), cx)?;
4469 if cursor_buffer != tail_buffer {
4470 return None;
4471 }
4472 let debounce = EditorSettings::get_global(cx).lsp_highlight_debounce;
4473 self.document_highlights_task = Some(cx.spawn(|this, mut cx| async move {
4474 cx.background_executor()
4475 .timer(Duration::from_millis(debounce))
4476 .await;
4477
4478 let highlights = if let Some(highlights) = cx
4479 .update(|cx| {
4480 provider.document_highlights(&cursor_buffer, cursor_buffer_position, cx)
4481 })
4482 .ok()
4483 .flatten()
4484 {
4485 highlights.await.log_err()
4486 } else {
4487 None
4488 };
4489
4490 if let Some(highlights) = highlights {
4491 this.update(&mut cx, |this, cx| {
4492 if this.pending_rename.is_some() {
4493 return;
4494 }
4495
4496 let buffer_id = cursor_position.buffer_id;
4497 let buffer = this.buffer.read(cx);
4498 if !buffer
4499 .text_anchor_for_position(cursor_position, cx)
4500 .map_or(false, |(buffer, _)| buffer == cursor_buffer)
4501 {
4502 return;
4503 }
4504
4505 let cursor_buffer_snapshot = cursor_buffer.read(cx);
4506 let mut write_ranges = Vec::new();
4507 let mut read_ranges = Vec::new();
4508 for highlight in highlights {
4509 for (excerpt_id, excerpt_range) in
4510 buffer.excerpts_for_buffer(&cursor_buffer, cx)
4511 {
4512 let start = highlight
4513 .range
4514 .start
4515 .max(&excerpt_range.context.start, cursor_buffer_snapshot);
4516 let end = highlight
4517 .range
4518 .end
4519 .min(&excerpt_range.context.end, cursor_buffer_snapshot);
4520 if start.cmp(&end, cursor_buffer_snapshot).is_ge() {
4521 continue;
4522 }
4523
4524 let range = Anchor {
4525 buffer_id,
4526 excerpt_id,
4527 text_anchor: start,
4528 }..Anchor {
4529 buffer_id,
4530 excerpt_id,
4531 text_anchor: end,
4532 };
4533 if highlight.kind == lsp::DocumentHighlightKind::WRITE {
4534 write_ranges.push(range);
4535 } else {
4536 read_ranges.push(range);
4537 }
4538 }
4539 }
4540
4541 this.highlight_background::<DocumentHighlightRead>(
4542 &read_ranges,
4543 |theme| theme.editor_document_highlight_read_background,
4544 cx,
4545 );
4546 this.highlight_background::<DocumentHighlightWrite>(
4547 &write_ranges,
4548 |theme| theme.editor_document_highlight_write_background,
4549 cx,
4550 );
4551 cx.notify();
4552 })
4553 .log_err();
4554 }
4555 }));
4556 None
4557 }
4558
4559 pub fn refresh_inline_completion(
4560 &mut self,
4561 debounce: bool,
4562 user_requested: bool,
4563 cx: &mut ViewContext<Self>,
4564 ) -> Option<()> {
4565 let provider = self.inline_completion_provider()?;
4566 let cursor = self.selections.newest_anchor().head();
4567 let (buffer, cursor_buffer_position) =
4568 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4569
4570 if !user_requested
4571 && (!self.enable_inline_completions
4572 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4573 || !self.is_focused(cx)
4574 || buffer.read(cx).is_empty())
4575 {
4576 self.discard_inline_completion(false, cx);
4577 return None;
4578 }
4579
4580 self.update_visible_inline_completion(cx);
4581 provider.refresh(buffer, cursor_buffer_position, debounce, cx);
4582 Some(())
4583 }
4584
4585 fn cycle_inline_completion(
4586 &mut self,
4587 direction: Direction,
4588 cx: &mut ViewContext<Self>,
4589 ) -> Option<()> {
4590 let provider = self.inline_completion_provider()?;
4591 let cursor = self.selections.newest_anchor().head();
4592 let (buffer, cursor_buffer_position) =
4593 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4594 if !self.enable_inline_completions
4595 || !self.should_show_inline_completions(&buffer, cursor_buffer_position, cx)
4596 {
4597 return None;
4598 }
4599
4600 provider.cycle(buffer, cursor_buffer_position, direction, cx);
4601 self.update_visible_inline_completion(cx);
4602
4603 Some(())
4604 }
4605
4606 pub fn show_inline_completion(&mut self, _: &ShowInlineCompletion, cx: &mut ViewContext<Self>) {
4607 if !self.has_active_inline_completion() {
4608 self.refresh_inline_completion(false, true, cx);
4609 return;
4610 }
4611
4612 self.update_visible_inline_completion(cx);
4613 }
4614
4615 pub fn display_cursor_names(&mut self, _: &DisplayCursorNames, cx: &mut ViewContext<Self>) {
4616 self.show_cursor_names(cx);
4617 }
4618
4619 fn show_cursor_names(&mut self, cx: &mut ViewContext<Self>) {
4620 self.show_cursor_names = true;
4621 cx.notify();
4622 cx.spawn(|this, mut cx| async move {
4623 cx.background_executor().timer(CURSORS_VISIBLE_FOR).await;
4624 this.update(&mut cx, |this, cx| {
4625 this.show_cursor_names = false;
4626 cx.notify()
4627 })
4628 .ok()
4629 })
4630 .detach();
4631 }
4632
4633 pub fn next_inline_completion(&mut self, _: &NextInlineCompletion, cx: &mut ViewContext<Self>) {
4634 if self.has_active_inline_completion() {
4635 self.cycle_inline_completion(Direction::Next, cx);
4636 } else {
4637 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4638 if is_copilot_disabled {
4639 cx.propagate();
4640 }
4641 }
4642 }
4643
4644 pub fn previous_inline_completion(
4645 &mut self,
4646 _: &PreviousInlineCompletion,
4647 cx: &mut ViewContext<Self>,
4648 ) {
4649 if self.has_active_inline_completion() {
4650 self.cycle_inline_completion(Direction::Prev, cx);
4651 } else {
4652 let is_copilot_disabled = self.refresh_inline_completion(false, true, cx).is_none();
4653 if is_copilot_disabled {
4654 cx.propagate();
4655 }
4656 }
4657 }
4658
4659 pub fn accept_inline_completion(
4660 &mut self,
4661 _: &AcceptInlineCompletion,
4662 cx: &mut ViewContext<Self>,
4663 ) {
4664 let buffer = self.buffer.read(cx);
4665 let snapshot = buffer.snapshot(cx);
4666 let selection = self.selections.newest_adjusted(cx);
4667 let cursor = selection.head();
4668 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
4669 let suggested_indents = snapshot.suggested_indents([cursor.row], cx);
4670 if let Some(suggested_indent) = suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
4671 {
4672 if cursor.column < suggested_indent.len
4673 && cursor.column <= current_indent.len
4674 && current_indent.len <= suggested_indent.len
4675 {
4676 self.tab(&Default::default(), cx);
4677 return;
4678 }
4679 }
4680
4681 if self.show_inline_completions_in_menu(cx) {
4682 self.hide_context_menu(cx);
4683 }
4684
4685 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4686 return;
4687 };
4688
4689 self.report_inline_completion_event(true, cx);
4690
4691 match &active_inline_completion.completion {
4692 InlineCompletion::Move(position) => {
4693 let position = *position;
4694 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4695 selections.select_anchor_ranges([position..position]);
4696 });
4697 }
4698 InlineCompletion::Edit { edits, .. } => {
4699 if let Some(provider) = self.inline_completion_provider() {
4700 provider.accept(cx);
4701 }
4702
4703 let snapshot = self.buffer.read(cx).snapshot(cx);
4704 let last_edit_end = edits.last().unwrap().0.end.bias_right(&snapshot);
4705
4706 self.buffer.update(cx, |buffer, cx| {
4707 buffer.edit(edits.iter().cloned(), None, cx)
4708 });
4709
4710 self.change_selections(None, cx, |s| {
4711 s.select_anchor_ranges([last_edit_end..last_edit_end])
4712 });
4713
4714 self.update_visible_inline_completion(cx);
4715 if self.active_inline_completion.is_none() {
4716 self.refresh_inline_completion(true, true, cx);
4717 }
4718
4719 cx.notify();
4720 }
4721 }
4722 }
4723
4724 pub fn accept_partial_inline_completion(
4725 &mut self,
4726 _: &AcceptPartialInlineCompletion,
4727 cx: &mut ViewContext<Self>,
4728 ) {
4729 let Some(active_inline_completion) = self.active_inline_completion.as_ref() else {
4730 return;
4731 };
4732 if self.selections.count() != 1 {
4733 return;
4734 }
4735
4736 self.report_inline_completion_event(true, cx);
4737
4738 match &active_inline_completion.completion {
4739 InlineCompletion::Move(position) => {
4740 let position = *position;
4741 self.change_selections(Some(Autoscroll::newest()), cx, |selections| {
4742 selections.select_anchor_ranges([position..position]);
4743 });
4744 }
4745 InlineCompletion::Edit { edits, .. } => {
4746 // Find an insertion that starts at the cursor position.
4747 let snapshot = self.buffer.read(cx).snapshot(cx);
4748 let cursor_offset = self.selections.newest::<usize>(cx).head();
4749 let insertion = edits.iter().find_map(|(range, text)| {
4750 let range = range.to_offset(&snapshot);
4751 if range.is_empty() && range.start == cursor_offset {
4752 Some(text)
4753 } else {
4754 None
4755 }
4756 });
4757
4758 if let Some(text) = insertion {
4759 let mut partial_completion = text
4760 .chars()
4761 .by_ref()
4762 .take_while(|c| c.is_alphabetic())
4763 .collect::<String>();
4764 if partial_completion.is_empty() {
4765 partial_completion = text
4766 .chars()
4767 .by_ref()
4768 .take_while(|c| c.is_whitespace() || !c.is_alphabetic())
4769 .collect::<String>();
4770 }
4771
4772 cx.emit(EditorEvent::InputHandled {
4773 utf16_range_to_replace: None,
4774 text: partial_completion.clone().into(),
4775 });
4776
4777 self.insert_with_autoindent_mode(&partial_completion, None, cx);
4778
4779 self.refresh_inline_completion(true, true, cx);
4780 cx.notify();
4781 } else {
4782 self.accept_inline_completion(&Default::default(), cx);
4783 }
4784 }
4785 }
4786 }
4787
4788 fn discard_inline_completion(
4789 &mut self,
4790 should_report_inline_completion_event: bool,
4791 cx: &mut ViewContext<Self>,
4792 ) -> bool {
4793 if should_report_inline_completion_event {
4794 self.report_inline_completion_event(false, cx);
4795 }
4796
4797 if let Some(provider) = self.inline_completion_provider() {
4798 provider.discard(cx);
4799 }
4800
4801 self.take_active_inline_completion(cx).is_some()
4802 }
4803
4804 fn report_inline_completion_event(&self, accepted: bool, cx: &AppContext) {
4805 let Some(provider) = self.inline_completion_provider() else {
4806 return;
4807 };
4808
4809 let Some((_, buffer, _)) = self
4810 .buffer
4811 .read(cx)
4812 .excerpt_containing(self.selections.newest_anchor().head(), cx)
4813 else {
4814 return;
4815 };
4816
4817 let extension = buffer
4818 .read(cx)
4819 .file()
4820 .and_then(|file| Some(file.path().extension()?.to_string_lossy().to_string()));
4821
4822 let event_type = match accepted {
4823 true => "Inline Completion Accepted",
4824 false => "Inline Completion Discarded",
4825 };
4826 telemetry::event!(
4827 event_type,
4828 provider = provider.name(),
4829 suggestion_accepted = accepted,
4830 file_extension = extension,
4831 );
4832 }
4833
4834 pub fn has_active_inline_completion(&self) -> bool {
4835 self.active_inline_completion.is_some()
4836 }
4837
4838 fn take_active_inline_completion(
4839 &mut self,
4840 cx: &mut ViewContext<Self>,
4841 ) -> Option<InlineCompletion> {
4842 let active_inline_completion = self.active_inline_completion.take()?;
4843 self.splice_inlays(active_inline_completion.inlay_ids, Default::default(), cx);
4844 self.clear_highlights::<InlineCompletionHighlight>(cx);
4845 Some(active_inline_completion.completion)
4846 }
4847
4848 fn update_visible_inline_completion(&mut self, cx: &mut ViewContext<Self>) -> Option<()> {
4849 let selection = self.selections.newest_anchor();
4850 let cursor = selection.head();
4851 let multibuffer = self.buffer.read(cx).snapshot(cx);
4852 let offset_selection = selection.map(|endpoint| endpoint.to_offset(&multibuffer));
4853 let excerpt_id = cursor.excerpt_id;
4854
4855 let completions_menu_has_precedence = !self.show_inline_completions_in_menu(cx)
4856 && (self.context_menu.borrow().is_some()
4857 || (!self.completion_tasks.is_empty() && !self.has_active_inline_completion()));
4858 if completions_menu_has_precedence
4859 || !offset_selection.is_empty()
4860 || !self.enable_inline_completions
4861 || self
4862 .active_inline_completion
4863 .as_ref()
4864 .map_or(false, |completion| {
4865 let invalidation_range = completion.invalidation_range.to_offset(&multibuffer);
4866 let invalidation_range = invalidation_range.start..=invalidation_range.end;
4867 !invalidation_range.contains(&offset_selection.head())
4868 })
4869 {
4870 self.discard_inline_completion(false, cx);
4871 return None;
4872 }
4873
4874 self.take_active_inline_completion(cx);
4875 let provider = self.inline_completion_provider()?;
4876
4877 let (buffer, cursor_buffer_position) =
4878 self.buffer.read(cx).text_anchor_for_position(cursor, cx)?;
4879
4880 let inline_completion = provider.suggest(&buffer, cursor_buffer_position, cx)?;
4881 let edits = inline_completion
4882 .edits
4883 .into_iter()
4884 .flat_map(|(range, new_text)| {
4885 let start = multibuffer.anchor_in_excerpt(excerpt_id, range.start)?;
4886 let end = multibuffer.anchor_in_excerpt(excerpt_id, range.end)?;
4887 Some((start..end, new_text))
4888 })
4889 .collect::<Vec<_>>();
4890 if edits.is_empty() {
4891 return None;
4892 }
4893
4894 let first_edit_start = edits.first().unwrap().0.start;
4895 let first_edit_start_point = first_edit_start.to_point(&multibuffer);
4896 let edit_start_row = first_edit_start_point.row.saturating_sub(2);
4897
4898 let last_edit_end = edits.last().unwrap().0.end;
4899 let last_edit_end_point = last_edit_end.to_point(&multibuffer);
4900 let edit_end_row = cmp::min(multibuffer.max_point().row, last_edit_end_point.row + 2);
4901
4902 let cursor_row = cursor.to_point(&multibuffer).row;
4903
4904 let mut inlay_ids = Vec::new();
4905 let invalidation_row_range;
4906 let completion = if cursor_row < edit_start_row {
4907 invalidation_row_range = cursor_row..edit_end_row;
4908 InlineCompletion::Move(first_edit_start)
4909 } else if cursor_row > edit_end_row {
4910 invalidation_row_range = edit_start_row..cursor_row;
4911 InlineCompletion::Move(first_edit_start)
4912 } else {
4913 if edits
4914 .iter()
4915 .all(|(range, _)| range.to_offset(&multibuffer).is_empty())
4916 {
4917 let mut inlays = Vec::new();
4918 for (range, new_text) in &edits {
4919 let inlay = Inlay::inline_completion(
4920 post_inc(&mut self.next_inlay_id),
4921 range.start,
4922 new_text.as_str(),
4923 );
4924 inlay_ids.push(inlay.id);
4925 inlays.push(inlay);
4926 }
4927
4928 self.splice_inlays(vec![], inlays, cx);
4929 } else {
4930 let background_color = cx.theme().status().deleted_background;
4931 self.highlight_text::<InlineCompletionHighlight>(
4932 edits.iter().map(|(range, _)| range.clone()).collect(),
4933 HighlightStyle {
4934 background_color: Some(background_color),
4935 ..Default::default()
4936 },
4937 cx,
4938 );
4939 }
4940
4941 invalidation_row_range = edit_start_row..edit_end_row;
4942
4943 let display_mode = if all_edits_insertions_or_deletions(&edits, &multibuffer) {
4944 if provider.show_tab_accept_marker()
4945 && first_edit_start_point.row == last_edit_end_point.row
4946 && !edits.iter().any(|(_, edit)| edit.contains('\n'))
4947 {
4948 EditDisplayMode::TabAccept
4949 } else {
4950 EditDisplayMode::Inline
4951 }
4952 } else {
4953 EditDisplayMode::DiffPopover
4954 };
4955
4956 let snapshot = multibuffer.buffer_for_excerpt(excerpt_id).cloned()?;
4957
4958 InlineCompletion::Edit {
4959 edits,
4960 edit_preview: inline_completion.edit_preview,
4961 display_mode,
4962 snapshot,
4963 }
4964 };
4965
4966 let invalidation_range = multibuffer
4967 .anchor_before(Point::new(invalidation_row_range.start, 0))
4968 ..multibuffer.anchor_after(Point::new(
4969 invalidation_row_range.end,
4970 multibuffer.line_len(MultiBufferRow(invalidation_row_range.end)),
4971 ));
4972
4973 self.active_inline_completion = Some(InlineCompletionState {
4974 inlay_ids,
4975 completion,
4976 invalidation_range,
4977 });
4978
4979 if self.show_inline_completions_in_menu(cx) && self.has_active_completions_menu() {
4980 if let Some(hint) = self.inline_completion_menu_hint(cx) {
4981 match self.context_menu.borrow_mut().as_mut() {
4982 Some(CodeContextMenu::Completions(menu)) => {
4983 menu.show_inline_completion_hint(hint);
4984 }
4985 _ => {}
4986 }
4987 }
4988 }
4989
4990 cx.notify();
4991
4992 Some(())
4993 }
4994
4995 fn inline_completion_menu_hint(
4996 &mut self,
4997 cx: &mut ViewContext<Self>,
4998 ) -> Option<InlineCompletionMenuHint> {
4999 let provider = self.inline_completion_provider()?;
5000 if self.has_active_inline_completion() {
5001 let editor_snapshot = self.snapshot(cx);
5002
5003 let text = match &self.active_inline_completion.as_ref()?.completion {
5004 InlineCompletion::Edit {
5005 edits,
5006 edit_preview,
5007 display_mode: _,
5008 snapshot,
5009 } => edit_preview
5010 .as_ref()
5011 .and_then(|edit_preview| {
5012 inline_completion_edit_text(&snapshot, &edits, edit_preview, true, cx)
5013 })
5014 .map(InlineCompletionText::Edit),
5015 InlineCompletion::Move(target) => {
5016 let target_point =
5017 target.to_point(&editor_snapshot.display_snapshot.buffer_snapshot);
5018 let target_line = target_point.row + 1;
5019 Some(InlineCompletionText::Move(
5020 format!("Jump to edit in line {}", target_line).into(),
5021 ))
5022 }
5023 };
5024
5025 Some(InlineCompletionMenuHint::Loaded { text: text? })
5026 } else if provider.is_refreshing(cx) {
5027 Some(InlineCompletionMenuHint::Loading)
5028 } else if provider.needs_terms_acceptance(cx) {
5029 Some(InlineCompletionMenuHint::PendingTermsAcceptance)
5030 } else {
5031 Some(InlineCompletionMenuHint::None)
5032 }
5033 }
5034
5035 pub fn inline_completion_provider(&self) -> Option<Arc<dyn InlineCompletionProviderHandle>> {
5036 Some(self.inline_completion_provider.as_ref()?.provider.clone())
5037 }
5038
5039 fn show_inline_completions_in_menu(&self, cx: &AppContext) -> bool {
5040 EditorSettings::get_global(cx).show_inline_completions_in_menu
5041 && self
5042 .inline_completion_provider()
5043 .map_or(false, |provider| provider.show_completions_in_menu())
5044 }
5045
5046 fn render_code_actions_indicator(
5047 &self,
5048 _style: &EditorStyle,
5049 row: DisplayRow,
5050 is_active: bool,
5051 cx: &mut ViewContext<Self>,
5052 ) -> Option<IconButton> {
5053 if self.available_code_actions.is_some() {
5054 Some(
5055 IconButton::new("code_actions_indicator", ui::IconName::Bolt)
5056 .shape(ui::IconButtonShape::Square)
5057 .icon_size(IconSize::XSmall)
5058 .icon_color(Color::Muted)
5059 .toggle_state(is_active)
5060 .tooltip({
5061 let focus_handle = self.focus_handle.clone();
5062 move |cx| {
5063 Tooltip::for_action_in(
5064 "Toggle Code Actions",
5065 &ToggleCodeActions {
5066 deployed_from_indicator: None,
5067 },
5068 &focus_handle,
5069 cx,
5070 )
5071 }
5072 })
5073 .on_click(cx.listener(move |editor, _e, cx| {
5074 editor.focus(cx);
5075 editor.toggle_code_actions(
5076 &ToggleCodeActions {
5077 deployed_from_indicator: Some(row),
5078 },
5079 cx,
5080 );
5081 })),
5082 )
5083 } else {
5084 None
5085 }
5086 }
5087
5088 fn clear_tasks(&mut self) {
5089 self.tasks.clear()
5090 }
5091
5092 fn insert_tasks(&mut self, key: (BufferId, BufferRow), value: RunnableTasks) {
5093 if self.tasks.insert(key, value).is_some() {
5094 // This case should hopefully be rare, but just in case...
5095 log::error!("multiple different run targets found on a single line, only the last target will be rendered")
5096 }
5097 }
5098
5099 fn build_tasks_context(
5100 project: &Model<Project>,
5101 buffer: &Model<Buffer>,
5102 buffer_row: u32,
5103 tasks: &Arc<RunnableTasks>,
5104 cx: &mut ViewContext<Self>,
5105 ) -> Task<Option<task::TaskContext>> {
5106 let position = Point::new(buffer_row, tasks.column);
5107 let range_start = buffer.read(cx).anchor_at(position, Bias::Right);
5108 let location = Location {
5109 buffer: buffer.clone(),
5110 range: range_start..range_start,
5111 };
5112 // Fill in the environmental variables from the tree-sitter captures
5113 let mut captured_task_variables = TaskVariables::default();
5114 for (capture_name, value) in tasks.extra_variables.clone() {
5115 captured_task_variables.insert(
5116 task::VariableName::Custom(capture_name.into()),
5117 value.clone(),
5118 );
5119 }
5120 project.update(cx, |project, cx| {
5121 project.task_store().update(cx, |task_store, cx| {
5122 task_store.task_context_for_location(captured_task_variables, location, cx)
5123 })
5124 })
5125 }
5126
5127 pub fn spawn_nearest_task(&mut self, action: &SpawnNearestTask, cx: &mut ViewContext<Self>) {
5128 let Some((workspace, _)) = self.workspace.clone() else {
5129 return;
5130 };
5131 let Some(project) = self.project.clone() else {
5132 return;
5133 };
5134
5135 // Try to find a closest, enclosing node using tree-sitter that has a
5136 // task
5137 let Some((buffer, buffer_row, tasks)) = self
5138 .find_enclosing_node_task(cx)
5139 // Or find the task that's closest in row-distance.
5140 .or_else(|| self.find_closest_task(cx))
5141 else {
5142 return;
5143 };
5144
5145 let reveal_strategy = action.reveal;
5146 let task_context = Self::build_tasks_context(&project, &buffer, buffer_row, &tasks, cx);
5147 cx.spawn(|_, mut cx| async move {
5148 let context = task_context.await?;
5149 let (task_source_kind, mut resolved_task) = tasks.resolve(&context).next()?;
5150
5151 let resolved = resolved_task.resolved.as_mut()?;
5152 resolved.reveal = reveal_strategy;
5153
5154 workspace
5155 .update(&mut cx, |workspace, cx| {
5156 workspace::tasks::schedule_resolved_task(
5157 workspace,
5158 task_source_kind,
5159 resolved_task,
5160 false,
5161 cx,
5162 );
5163 })
5164 .ok()
5165 })
5166 .detach();
5167 }
5168
5169 fn find_closest_task(
5170 &mut self,
5171 cx: &mut ViewContext<Self>,
5172 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5173 let cursor_row = self.selections.newest_adjusted(cx).head().row;
5174
5175 let ((buffer_id, row), tasks) = self
5176 .tasks
5177 .iter()
5178 .min_by_key(|((_, row), _)| cursor_row.abs_diff(*row))?;
5179
5180 let buffer = self.buffer.read(cx).buffer(*buffer_id)?;
5181 let tasks = Arc::new(tasks.to_owned());
5182 Some((buffer, *row, tasks))
5183 }
5184
5185 fn find_enclosing_node_task(
5186 &mut self,
5187 cx: &mut ViewContext<Self>,
5188 ) -> Option<(Model<Buffer>, u32, Arc<RunnableTasks>)> {
5189 let snapshot = self.buffer.read(cx).snapshot(cx);
5190 let offset = self.selections.newest::<usize>(cx).head();
5191 let excerpt = snapshot.excerpt_containing(offset..offset)?;
5192 let buffer_id = excerpt.buffer().remote_id();
5193
5194 let layer = excerpt.buffer().syntax_layer_at(offset)?;
5195 let mut cursor = layer.node().walk();
5196
5197 while cursor.goto_first_child_for_byte(offset).is_some() {
5198 if cursor.node().end_byte() == offset {
5199 cursor.goto_next_sibling();
5200 }
5201 }
5202
5203 // Ascend to the smallest ancestor that contains the range and has a task.
5204 loop {
5205 let node = cursor.node();
5206 let node_range = node.byte_range();
5207 let symbol_start_row = excerpt.buffer().offset_to_point(node.start_byte()).row;
5208
5209 // Check if this node contains our offset
5210 if node_range.start <= offset && node_range.end >= offset {
5211 // If it contains offset, check for task
5212 if let Some(tasks) = self.tasks.get(&(buffer_id, symbol_start_row)) {
5213 let buffer = self.buffer.read(cx).buffer(buffer_id)?;
5214 return Some((buffer, symbol_start_row, Arc::new(tasks.to_owned())));
5215 }
5216 }
5217
5218 if !cursor.goto_parent() {
5219 break;
5220 }
5221 }
5222 None
5223 }
5224
5225 fn render_run_indicator(
5226 &self,
5227 _style: &EditorStyle,
5228 is_active: bool,
5229 row: DisplayRow,
5230 cx: &mut ViewContext<Self>,
5231 ) -> IconButton {
5232 IconButton::new(("run_indicator", row.0 as usize), ui::IconName::Play)
5233 .shape(ui::IconButtonShape::Square)
5234 .icon_size(IconSize::XSmall)
5235 .icon_color(Color::Muted)
5236 .toggle_state(is_active)
5237 .on_click(cx.listener(move |editor, _e, cx| {
5238 editor.focus(cx);
5239 editor.toggle_code_actions(
5240 &ToggleCodeActions {
5241 deployed_from_indicator: Some(row),
5242 },
5243 cx,
5244 );
5245 }))
5246 }
5247
5248 #[cfg(any(feature = "test-support", test))]
5249 pub fn context_menu_visible(&self) -> bool {
5250 self.context_menu
5251 .borrow()
5252 .as_ref()
5253 .map_or(false, |menu| menu.visible())
5254 }
5255
5256 #[cfg(feature = "test-support")]
5257 pub fn context_menu_contains_inline_completion(&self) -> bool {
5258 self.context_menu
5259 .borrow()
5260 .as_ref()
5261 .map_or(false, |menu| match menu {
5262 CodeContextMenu::Completions(menu) => {
5263 menu.entries.borrow().first().map_or(false, |entry| {
5264 matches!(entry, CompletionEntry::InlineCompletionHint(_))
5265 })
5266 }
5267 CodeContextMenu::CodeActions(_) => false,
5268 })
5269 }
5270
5271 fn context_menu_origin(&self, cursor_position: DisplayPoint) -> Option<ContextMenuOrigin> {
5272 self.context_menu
5273 .borrow()
5274 .as_ref()
5275 .map(|menu| menu.origin(cursor_position))
5276 }
5277
5278 fn render_context_menu(
5279 &self,
5280 style: &EditorStyle,
5281 max_height_in_lines: u32,
5282 y_flipped: bool,
5283 cx: &mut ViewContext<Editor>,
5284 ) -> Option<AnyElement> {
5285 self.context_menu.borrow().as_ref().and_then(|menu| {
5286 if menu.visible() {
5287 Some(menu.render(style, max_height_in_lines, y_flipped, cx))
5288 } else {
5289 None
5290 }
5291 })
5292 }
5293
5294 fn render_context_menu_aside(
5295 &self,
5296 style: &EditorStyle,
5297 max_size: Size<Pixels>,
5298 cx: &mut ViewContext<Editor>,
5299 ) -> Option<AnyElement> {
5300 self.context_menu.borrow().as_ref().and_then(|menu| {
5301 if menu.visible() {
5302 menu.render_aside(
5303 style,
5304 max_size,
5305 self.workspace.as_ref().map(|(w, _)| w.clone()),
5306 cx,
5307 )
5308 } else {
5309 None
5310 }
5311 })
5312 }
5313
5314 fn hide_context_menu(&mut self, cx: &mut ViewContext<Self>) -> Option<CodeContextMenu> {
5315 cx.notify();
5316 self.completion_tasks.clear();
5317 let context_menu = self.context_menu.borrow_mut().take();
5318 if context_menu.is_some() && !self.show_inline_completions_in_menu(cx) {
5319 self.update_visible_inline_completion(cx);
5320 }
5321 context_menu
5322 }
5323
5324 fn show_snippet_choices(
5325 &mut self,
5326 choices: &Vec<String>,
5327 selection: Range<Anchor>,
5328 cx: &mut ViewContext<Self>,
5329 ) {
5330 if selection.start.buffer_id.is_none() {
5331 return;
5332 }
5333 let buffer_id = selection.start.buffer_id.unwrap();
5334 let buffer = self.buffer().read(cx).buffer(buffer_id);
5335 let id = post_inc(&mut self.next_completion_id);
5336
5337 if let Some(buffer) = buffer {
5338 *self.context_menu.borrow_mut() = Some(CodeContextMenu::Completions(
5339 CompletionsMenu::new_snippet_choices(id, true, choices, selection, buffer),
5340 ));
5341 }
5342 }
5343
5344 pub fn insert_snippet(
5345 &mut self,
5346 insertion_ranges: &[Range<usize>],
5347 snippet: Snippet,
5348 cx: &mut ViewContext<Self>,
5349 ) -> Result<()> {
5350 struct Tabstop<T> {
5351 is_end_tabstop: bool,
5352 ranges: Vec<Range<T>>,
5353 choices: Option<Vec<String>>,
5354 }
5355
5356 let tabstops = self.buffer.update(cx, |buffer, cx| {
5357 let snippet_text: Arc<str> = snippet.text.clone().into();
5358 buffer.edit(
5359 insertion_ranges
5360 .iter()
5361 .cloned()
5362 .map(|range| (range, snippet_text.clone())),
5363 Some(AutoindentMode::EachLine),
5364 cx,
5365 );
5366
5367 let snapshot = &*buffer.read(cx);
5368 let snippet = &snippet;
5369 snippet
5370 .tabstops
5371 .iter()
5372 .map(|tabstop| {
5373 let is_end_tabstop = tabstop.ranges.first().map_or(false, |tabstop| {
5374 tabstop.is_empty() && tabstop.start == snippet.text.len() as isize
5375 });
5376 let mut tabstop_ranges = tabstop
5377 .ranges
5378 .iter()
5379 .flat_map(|tabstop_range| {
5380 let mut delta = 0_isize;
5381 insertion_ranges.iter().map(move |insertion_range| {
5382 let insertion_start = insertion_range.start as isize + delta;
5383 delta +=
5384 snippet.text.len() as isize - insertion_range.len() as isize;
5385
5386 let start = ((insertion_start + tabstop_range.start) as usize)
5387 .min(snapshot.len());
5388 let end = ((insertion_start + tabstop_range.end) as usize)
5389 .min(snapshot.len());
5390 snapshot.anchor_before(start)..snapshot.anchor_after(end)
5391 })
5392 })
5393 .collect::<Vec<_>>();
5394 tabstop_ranges.sort_unstable_by(|a, b| a.start.cmp(&b.start, snapshot));
5395
5396 Tabstop {
5397 is_end_tabstop,
5398 ranges: tabstop_ranges,
5399 choices: tabstop.choices.clone(),
5400 }
5401 })
5402 .collect::<Vec<_>>()
5403 });
5404 if let Some(tabstop) = tabstops.first() {
5405 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5406 s.select_ranges(tabstop.ranges.iter().cloned());
5407 });
5408
5409 if let Some(choices) = &tabstop.choices {
5410 if let Some(selection) = tabstop.ranges.first() {
5411 self.show_snippet_choices(choices, selection.clone(), cx)
5412 }
5413 }
5414
5415 // If we're already at the last tabstop and it's at the end of the snippet,
5416 // we're done, we don't need to keep the state around.
5417 if !tabstop.is_end_tabstop {
5418 let choices = tabstops
5419 .iter()
5420 .map(|tabstop| tabstop.choices.clone())
5421 .collect();
5422
5423 let ranges = tabstops
5424 .into_iter()
5425 .map(|tabstop| tabstop.ranges)
5426 .collect::<Vec<_>>();
5427
5428 self.snippet_stack.push(SnippetState {
5429 active_index: 0,
5430 ranges,
5431 choices,
5432 });
5433 }
5434
5435 // Check whether the just-entered snippet ends with an auto-closable bracket.
5436 if self.autoclose_regions.is_empty() {
5437 let snapshot = self.buffer.read(cx).snapshot(cx);
5438 for selection in &mut self.selections.all::<Point>(cx) {
5439 let selection_head = selection.head();
5440 let Some(scope) = snapshot.language_scope_at(selection_head) else {
5441 continue;
5442 };
5443
5444 let mut bracket_pair = None;
5445 let next_chars = snapshot.chars_at(selection_head).collect::<String>();
5446 let prev_chars = snapshot
5447 .reversed_chars_at(selection_head)
5448 .collect::<String>();
5449 for (pair, enabled) in scope.brackets() {
5450 if enabled
5451 && pair.close
5452 && prev_chars.starts_with(pair.start.as_str())
5453 && next_chars.starts_with(pair.end.as_str())
5454 {
5455 bracket_pair = Some(pair.clone());
5456 break;
5457 }
5458 }
5459 if let Some(pair) = bracket_pair {
5460 let start = snapshot.anchor_after(selection_head);
5461 let end = snapshot.anchor_after(selection_head);
5462 self.autoclose_regions.push(AutocloseRegion {
5463 selection_id: selection.id,
5464 range: start..end,
5465 pair,
5466 });
5467 }
5468 }
5469 }
5470 }
5471 Ok(())
5472 }
5473
5474 pub fn move_to_next_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5475 self.move_to_snippet_tabstop(Bias::Right, cx)
5476 }
5477
5478 pub fn move_to_prev_snippet_tabstop(&mut self, cx: &mut ViewContext<Self>) -> bool {
5479 self.move_to_snippet_tabstop(Bias::Left, cx)
5480 }
5481
5482 pub fn move_to_snippet_tabstop(&mut self, bias: Bias, cx: &mut ViewContext<Self>) -> bool {
5483 if let Some(mut snippet) = self.snippet_stack.pop() {
5484 match bias {
5485 Bias::Left => {
5486 if snippet.active_index > 0 {
5487 snippet.active_index -= 1;
5488 } else {
5489 self.snippet_stack.push(snippet);
5490 return false;
5491 }
5492 }
5493 Bias::Right => {
5494 if snippet.active_index + 1 < snippet.ranges.len() {
5495 snippet.active_index += 1;
5496 } else {
5497 self.snippet_stack.push(snippet);
5498 return false;
5499 }
5500 }
5501 }
5502 if let Some(current_ranges) = snippet.ranges.get(snippet.active_index) {
5503 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
5504 s.select_anchor_ranges(current_ranges.iter().cloned())
5505 });
5506
5507 if let Some(choices) = &snippet.choices[snippet.active_index] {
5508 if let Some(selection) = current_ranges.first() {
5509 self.show_snippet_choices(&choices, selection.clone(), cx);
5510 }
5511 }
5512
5513 // If snippet state is not at the last tabstop, push it back on the stack
5514 if snippet.active_index + 1 < snippet.ranges.len() {
5515 self.snippet_stack.push(snippet);
5516 }
5517 return true;
5518 }
5519 }
5520
5521 false
5522 }
5523
5524 pub fn clear(&mut self, cx: &mut ViewContext<Self>) {
5525 self.transact(cx, |this, cx| {
5526 this.select_all(&SelectAll, cx);
5527 this.insert("", cx);
5528 });
5529 }
5530
5531 pub fn backspace(&mut self, _: &Backspace, cx: &mut ViewContext<Self>) {
5532 self.transact(cx, |this, cx| {
5533 this.select_autoclose_pair(cx);
5534 let mut linked_ranges = HashMap::<_, Vec<_>>::default();
5535 if !this.linked_edit_ranges.is_empty() {
5536 let selections = this.selections.all::<MultiBufferPoint>(cx);
5537 let snapshot = this.buffer.read(cx).snapshot(cx);
5538
5539 for selection in selections.iter() {
5540 let selection_start = snapshot.anchor_before(selection.start).text_anchor;
5541 let selection_end = snapshot.anchor_after(selection.end).text_anchor;
5542 if selection_start.buffer_id != selection_end.buffer_id {
5543 continue;
5544 }
5545 if let Some(ranges) =
5546 this.linked_editing_ranges_for(selection_start..selection_end, cx)
5547 {
5548 for (buffer, entries) in ranges {
5549 linked_ranges.entry(buffer).or_default().extend(entries);
5550 }
5551 }
5552 }
5553 }
5554
5555 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
5556 if !this.selections.line_mode {
5557 let display_map = this.display_map.update(cx, |map, cx| map.snapshot(cx));
5558 for selection in &mut selections {
5559 if selection.is_empty() {
5560 let old_head = selection.head();
5561 let mut new_head =
5562 movement::left(&display_map, old_head.to_display_point(&display_map))
5563 .to_point(&display_map);
5564 if let Some((buffer, line_buffer_range)) = display_map
5565 .buffer_snapshot
5566 .buffer_line_for_row(MultiBufferRow(old_head.row))
5567 {
5568 let indent_size =
5569 buffer.indent_size_for_line(line_buffer_range.start.row);
5570 let indent_len = match indent_size.kind {
5571 IndentKind::Space => {
5572 buffer.settings_at(line_buffer_range.start, cx).tab_size
5573 }
5574 IndentKind::Tab => NonZeroU32::new(1).unwrap(),
5575 };
5576 if old_head.column <= indent_size.len && old_head.column > 0 {
5577 let indent_len = indent_len.get();
5578 new_head = cmp::min(
5579 new_head,
5580 MultiBufferPoint::new(
5581 old_head.row,
5582 ((old_head.column - 1) / indent_len) * indent_len,
5583 ),
5584 );
5585 }
5586 }
5587
5588 selection.set_head(new_head, SelectionGoal::None);
5589 }
5590 }
5591 }
5592
5593 this.signature_help_state.set_backspace_pressed(true);
5594 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5595 this.insert("", cx);
5596 let empty_str: Arc<str> = Arc::from("");
5597 for (buffer, edits) in linked_ranges {
5598 let snapshot = buffer.read(cx).snapshot();
5599 use text::ToPoint as TP;
5600
5601 let edits = edits
5602 .into_iter()
5603 .map(|range| {
5604 let end_point = TP::to_point(&range.end, &snapshot);
5605 let mut start_point = TP::to_point(&range.start, &snapshot);
5606
5607 if end_point == start_point {
5608 let offset = text::ToOffset::to_offset(&range.start, &snapshot)
5609 .saturating_sub(1);
5610 start_point =
5611 snapshot.clip_point(TP::to_point(&offset, &snapshot), Bias::Left);
5612 };
5613
5614 (start_point..end_point, empty_str.clone())
5615 })
5616 .sorted_by_key(|(range, _)| range.start)
5617 .collect::<Vec<_>>();
5618 buffer.update(cx, |this, cx| {
5619 this.edit(edits, None, cx);
5620 })
5621 }
5622 this.refresh_inline_completion(true, false, cx);
5623 linked_editing_ranges::refresh_linked_ranges(this, cx);
5624 });
5625 }
5626
5627 pub fn delete(&mut self, _: &Delete, cx: &mut ViewContext<Self>) {
5628 self.transact(cx, |this, cx| {
5629 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
5630 let line_mode = s.line_mode;
5631 s.move_with(|map, selection| {
5632 if selection.is_empty() && !line_mode {
5633 let cursor = movement::right(map, selection.head());
5634 selection.end = cursor;
5635 selection.reversed = true;
5636 selection.goal = SelectionGoal::None;
5637 }
5638 })
5639 });
5640 this.insert("", cx);
5641 this.refresh_inline_completion(true, false, cx);
5642 });
5643 }
5644
5645 pub fn tab_prev(&mut self, _: &TabPrev, cx: &mut ViewContext<Self>) {
5646 if self.move_to_prev_snippet_tabstop(cx) {
5647 return;
5648 }
5649
5650 self.outdent(&Outdent, cx);
5651 }
5652
5653 pub fn tab(&mut self, _: &Tab, cx: &mut ViewContext<Self>) {
5654 if self.move_to_next_snippet_tabstop(cx) || self.read_only(cx) {
5655 return;
5656 }
5657
5658 let mut selections = self.selections.all_adjusted(cx);
5659 let buffer = self.buffer.read(cx);
5660 let snapshot = buffer.snapshot(cx);
5661 let rows_iter = selections.iter().map(|s| s.head().row);
5662 let suggested_indents = snapshot.suggested_indents(rows_iter, cx);
5663
5664 let mut edits = Vec::new();
5665 let mut prev_edited_row = 0;
5666 let mut row_delta = 0;
5667 for selection in &mut selections {
5668 if selection.start.row != prev_edited_row {
5669 row_delta = 0;
5670 }
5671 prev_edited_row = selection.end.row;
5672
5673 // If the selection is non-empty, then increase the indentation of the selected lines.
5674 if !selection.is_empty() {
5675 row_delta =
5676 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5677 continue;
5678 }
5679
5680 // If the selection is empty and the cursor is in the leading whitespace before the
5681 // suggested indentation, then auto-indent the line.
5682 let cursor = selection.head();
5683 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(cursor.row));
5684 if let Some(suggested_indent) =
5685 suggested_indents.get(&MultiBufferRow(cursor.row)).copied()
5686 {
5687 if cursor.column < suggested_indent.len
5688 && cursor.column <= current_indent.len
5689 && current_indent.len <= suggested_indent.len
5690 {
5691 selection.start = Point::new(cursor.row, suggested_indent.len);
5692 selection.end = selection.start;
5693 if row_delta == 0 {
5694 edits.extend(Buffer::edit_for_indent_size_adjustment(
5695 cursor.row,
5696 current_indent,
5697 suggested_indent,
5698 ));
5699 row_delta = suggested_indent.len - current_indent.len;
5700 }
5701 continue;
5702 }
5703 }
5704
5705 // Otherwise, insert a hard or soft tab.
5706 let settings = buffer.settings_at(cursor, cx);
5707 let tab_size = if settings.hard_tabs {
5708 IndentSize::tab()
5709 } else {
5710 let tab_size = settings.tab_size.get();
5711 let char_column = snapshot
5712 .text_for_range(Point::new(cursor.row, 0)..cursor)
5713 .flat_map(str::chars)
5714 .count()
5715 + row_delta as usize;
5716 let chars_to_next_tab_stop = tab_size - (char_column as u32 % tab_size);
5717 IndentSize::spaces(chars_to_next_tab_stop)
5718 };
5719 selection.start = Point::new(cursor.row, cursor.column + row_delta + tab_size.len);
5720 selection.end = selection.start;
5721 edits.push((cursor..cursor, tab_size.chars().collect::<String>()));
5722 row_delta += tab_size.len;
5723 }
5724
5725 self.transact(cx, |this, cx| {
5726 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5727 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5728 this.refresh_inline_completion(true, false, cx);
5729 });
5730 }
5731
5732 pub fn indent(&mut self, _: &Indent, cx: &mut ViewContext<Self>) {
5733 if self.read_only(cx) {
5734 return;
5735 }
5736 let mut selections = self.selections.all::<Point>(cx);
5737 let mut prev_edited_row = 0;
5738 let mut row_delta = 0;
5739 let mut edits = Vec::new();
5740 let buffer = self.buffer.read(cx);
5741 let snapshot = buffer.snapshot(cx);
5742 for selection in &mut selections {
5743 if selection.start.row != prev_edited_row {
5744 row_delta = 0;
5745 }
5746 prev_edited_row = selection.end.row;
5747
5748 row_delta =
5749 Self::indent_selection(buffer, &snapshot, selection, &mut edits, row_delta, cx);
5750 }
5751
5752 self.transact(cx, |this, cx| {
5753 this.buffer.update(cx, |b, cx| b.edit(edits, None, cx));
5754 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5755 });
5756 }
5757
5758 fn indent_selection(
5759 buffer: &MultiBuffer,
5760 snapshot: &MultiBufferSnapshot,
5761 selection: &mut Selection<Point>,
5762 edits: &mut Vec<(Range<Point>, String)>,
5763 delta_for_start_row: u32,
5764 cx: &AppContext,
5765 ) -> u32 {
5766 let settings = buffer.settings_at(selection.start, cx);
5767 let tab_size = settings.tab_size.get();
5768 let indent_kind = if settings.hard_tabs {
5769 IndentKind::Tab
5770 } else {
5771 IndentKind::Space
5772 };
5773 let mut start_row = selection.start.row;
5774 let mut end_row = selection.end.row + 1;
5775
5776 // If a selection ends at the beginning of a line, don't indent
5777 // that last line.
5778 if selection.end.column == 0 && selection.end.row > selection.start.row {
5779 end_row -= 1;
5780 }
5781
5782 // Avoid re-indenting a row that has already been indented by a
5783 // previous selection, but still update this selection's column
5784 // to reflect that indentation.
5785 if delta_for_start_row > 0 {
5786 start_row += 1;
5787 selection.start.column += delta_for_start_row;
5788 if selection.end.row == selection.start.row {
5789 selection.end.column += delta_for_start_row;
5790 }
5791 }
5792
5793 let mut delta_for_end_row = 0;
5794 let has_multiple_rows = start_row + 1 != end_row;
5795 for row in start_row..end_row {
5796 let current_indent = snapshot.indent_size_for_line(MultiBufferRow(row));
5797 let indent_delta = match (current_indent.kind, indent_kind) {
5798 (IndentKind::Space, IndentKind::Space) => {
5799 let columns_to_next_tab_stop = tab_size - (current_indent.len % tab_size);
5800 IndentSize::spaces(columns_to_next_tab_stop)
5801 }
5802 (IndentKind::Tab, IndentKind::Space) => IndentSize::spaces(tab_size),
5803 (_, IndentKind::Tab) => IndentSize::tab(),
5804 };
5805
5806 let start = if has_multiple_rows || current_indent.len < selection.start.column {
5807 0
5808 } else {
5809 selection.start.column
5810 };
5811 let row_start = Point::new(row, start);
5812 edits.push((
5813 row_start..row_start,
5814 indent_delta.chars().collect::<String>(),
5815 ));
5816
5817 // Update this selection's endpoints to reflect the indentation.
5818 if row == selection.start.row {
5819 selection.start.column += indent_delta.len;
5820 }
5821 if row == selection.end.row {
5822 selection.end.column += indent_delta.len;
5823 delta_for_end_row = indent_delta.len;
5824 }
5825 }
5826
5827 if selection.start.row == selection.end.row {
5828 delta_for_start_row + delta_for_end_row
5829 } else {
5830 delta_for_end_row
5831 }
5832 }
5833
5834 pub fn outdent(&mut self, _: &Outdent, cx: &mut ViewContext<Self>) {
5835 if self.read_only(cx) {
5836 return;
5837 }
5838 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5839 let selections = self.selections.all::<Point>(cx);
5840 let mut deletion_ranges = Vec::new();
5841 let mut last_outdent = None;
5842 {
5843 let buffer = self.buffer.read(cx);
5844 let snapshot = buffer.snapshot(cx);
5845 for selection in &selections {
5846 let settings = buffer.settings_at(selection.start, cx);
5847 let tab_size = settings.tab_size.get();
5848 let mut rows = selection.spanned_rows(false, &display_map);
5849
5850 // Avoid re-outdenting a row that has already been outdented by a
5851 // previous selection.
5852 if let Some(last_row) = last_outdent {
5853 if last_row == rows.start {
5854 rows.start = rows.start.next_row();
5855 }
5856 }
5857 let has_multiple_rows = rows.len() > 1;
5858 for row in rows.iter_rows() {
5859 let indent_size = snapshot.indent_size_for_line(row);
5860 if indent_size.len > 0 {
5861 let deletion_len = match indent_size.kind {
5862 IndentKind::Space => {
5863 let columns_to_prev_tab_stop = indent_size.len % tab_size;
5864 if columns_to_prev_tab_stop == 0 {
5865 tab_size
5866 } else {
5867 columns_to_prev_tab_stop
5868 }
5869 }
5870 IndentKind::Tab => 1,
5871 };
5872 let start = if has_multiple_rows
5873 || deletion_len > selection.start.column
5874 || indent_size.len < selection.start.column
5875 {
5876 0
5877 } else {
5878 selection.start.column - deletion_len
5879 };
5880 deletion_ranges.push(
5881 Point::new(row.0, start)..Point::new(row.0, start + deletion_len),
5882 );
5883 last_outdent = Some(row);
5884 }
5885 }
5886 }
5887 }
5888
5889 self.transact(cx, |this, cx| {
5890 this.buffer.update(cx, |buffer, cx| {
5891 let empty_str: Arc<str> = Arc::default();
5892 buffer.edit(
5893 deletion_ranges
5894 .into_iter()
5895 .map(|range| (range, empty_str.clone())),
5896 None,
5897 cx,
5898 );
5899 });
5900 let selections = this.selections.all::<usize>(cx);
5901 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5902 });
5903 }
5904
5905 pub fn autoindent(&mut self, _: &AutoIndent, cx: &mut ViewContext<Self>) {
5906 if self.read_only(cx) {
5907 return;
5908 }
5909 let selections = self
5910 .selections
5911 .all::<usize>(cx)
5912 .into_iter()
5913 .map(|s| s.range());
5914
5915 self.transact(cx, |this, cx| {
5916 this.buffer.update(cx, |buffer, cx| {
5917 buffer.autoindent_ranges(selections, cx);
5918 });
5919 let selections = this.selections.all::<usize>(cx);
5920 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
5921 });
5922 }
5923
5924 pub fn delete_line(&mut self, _: &DeleteLine, cx: &mut ViewContext<Self>) {
5925 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
5926 let selections = self.selections.all::<Point>(cx);
5927
5928 let mut new_cursors = Vec::new();
5929 let mut edit_ranges = Vec::new();
5930 let mut selections = selections.iter().peekable();
5931 while let Some(selection) = selections.next() {
5932 let mut rows = selection.spanned_rows(false, &display_map);
5933 let goal_display_column = selection.head().to_display_point(&display_map).column();
5934
5935 // Accumulate contiguous regions of rows that we want to delete.
5936 while let Some(next_selection) = selections.peek() {
5937 let next_rows = next_selection.spanned_rows(false, &display_map);
5938 if next_rows.start <= rows.end {
5939 rows.end = next_rows.end;
5940 selections.next().unwrap();
5941 } else {
5942 break;
5943 }
5944 }
5945
5946 let buffer = &display_map.buffer_snapshot;
5947 let mut edit_start = Point::new(rows.start.0, 0).to_offset(buffer);
5948 let edit_end;
5949 let cursor_buffer_row;
5950 if buffer.max_point().row >= rows.end.0 {
5951 // If there's a line after the range, delete the \n from the end of the row range
5952 // and position the cursor on the next line.
5953 edit_end = Point::new(rows.end.0, 0).to_offset(buffer);
5954 cursor_buffer_row = rows.end;
5955 } else {
5956 // If there isn't a line after the range, delete the \n from the line before the
5957 // start of the row range and position the cursor there.
5958 edit_start = edit_start.saturating_sub(1);
5959 edit_end = buffer.len();
5960 cursor_buffer_row = rows.start.previous_row();
5961 }
5962
5963 let mut cursor = Point::new(cursor_buffer_row.0, 0).to_display_point(&display_map);
5964 *cursor.column_mut() =
5965 cmp::min(goal_display_column, display_map.line_len(cursor.row()));
5966
5967 new_cursors.push((
5968 selection.id,
5969 buffer.anchor_after(cursor.to_point(&display_map)),
5970 ));
5971 edit_ranges.push(edit_start..edit_end);
5972 }
5973
5974 self.transact(cx, |this, cx| {
5975 let buffer = this.buffer.update(cx, |buffer, cx| {
5976 let empty_str: Arc<str> = Arc::default();
5977 buffer.edit(
5978 edit_ranges
5979 .into_iter()
5980 .map(|range| (range, empty_str.clone())),
5981 None,
5982 cx,
5983 );
5984 buffer.snapshot(cx)
5985 });
5986 let new_selections = new_cursors
5987 .into_iter()
5988 .map(|(id, cursor)| {
5989 let cursor = cursor.to_point(&buffer);
5990 Selection {
5991 id,
5992 start: cursor,
5993 end: cursor,
5994 reversed: false,
5995 goal: SelectionGoal::None,
5996 }
5997 })
5998 .collect();
5999
6000 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6001 s.select(new_selections);
6002 });
6003 });
6004 }
6005
6006 pub fn join_lines_impl(&mut self, insert_whitespace: bool, cx: &mut ViewContext<Self>) {
6007 if self.read_only(cx) {
6008 return;
6009 }
6010 let mut row_ranges = Vec::<Range<MultiBufferRow>>::new();
6011 for selection in self.selections.all::<Point>(cx) {
6012 let start = MultiBufferRow(selection.start.row);
6013 // Treat single line selections as if they include the next line. Otherwise this action
6014 // would do nothing for single line selections individual cursors.
6015 let end = if selection.start.row == selection.end.row {
6016 MultiBufferRow(selection.start.row + 1)
6017 } else {
6018 MultiBufferRow(selection.end.row)
6019 };
6020
6021 if let Some(last_row_range) = row_ranges.last_mut() {
6022 if start <= last_row_range.end {
6023 last_row_range.end = end;
6024 continue;
6025 }
6026 }
6027 row_ranges.push(start..end);
6028 }
6029
6030 let snapshot = self.buffer.read(cx).snapshot(cx);
6031 let mut cursor_positions = Vec::new();
6032 for row_range in &row_ranges {
6033 let anchor = snapshot.anchor_before(Point::new(
6034 row_range.end.previous_row().0,
6035 snapshot.line_len(row_range.end.previous_row()),
6036 ));
6037 cursor_positions.push(anchor..anchor);
6038 }
6039
6040 self.transact(cx, |this, cx| {
6041 for row_range in row_ranges.into_iter().rev() {
6042 for row in row_range.iter_rows().rev() {
6043 let end_of_line = Point::new(row.0, snapshot.line_len(row));
6044 let next_line_row = row.next_row();
6045 let indent = snapshot.indent_size_for_line(next_line_row);
6046 let start_of_next_line = Point::new(next_line_row.0, indent.len);
6047
6048 let replace =
6049 if snapshot.line_len(next_line_row) > indent.len && insert_whitespace {
6050 " "
6051 } else {
6052 ""
6053 };
6054
6055 this.buffer.update(cx, |buffer, cx| {
6056 buffer.edit([(end_of_line..start_of_next_line, replace)], None, cx)
6057 });
6058 }
6059 }
6060
6061 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6062 s.select_anchor_ranges(cursor_positions)
6063 });
6064 });
6065 }
6066
6067 pub fn join_lines(&mut self, _: &JoinLines, cx: &mut ViewContext<Self>) {
6068 self.join_lines_impl(true, cx);
6069 }
6070
6071 pub fn sort_lines_case_sensitive(
6072 &mut self,
6073 _: &SortLinesCaseSensitive,
6074 cx: &mut ViewContext<Self>,
6075 ) {
6076 self.manipulate_lines(cx, |lines| lines.sort())
6077 }
6078
6079 pub fn sort_lines_case_insensitive(
6080 &mut self,
6081 _: &SortLinesCaseInsensitive,
6082 cx: &mut ViewContext<Self>,
6083 ) {
6084 self.manipulate_lines(cx, |lines| lines.sort_by_key(|line| line.to_lowercase()))
6085 }
6086
6087 pub fn unique_lines_case_insensitive(
6088 &mut self,
6089 _: &UniqueLinesCaseInsensitive,
6090 cx: &mut ViewContext<Self>,
6091 ) {
6092 self.manipulate_lines(cx, |lines| {
6093 let mut seen = HashSet::default();
6094 lines.retain(|line| seen.insert(line.to_lowercase()));
6095 })
6096 }
6097
6098 pub fn unique_lines_case_sensitive(
6099 &mut self,
6100 _: &UniqueLinesCaseSensitive,
6101 cx: &mut ViewContext<Self>,
6102 ) {
6103 self.manipulate_lines(cx, |lines| {
6104 let mut seen = HashSet::default();
6105 lines.retain(|line| seen.insert(*line));
6106 })
6107 }
6108
6109 pub fn revert_file(&mut self, _: &RevertFile, cx: &mut ViewContext<Self>) {
6110 let mut revert_changes = HashMap::default();
6111 let snapshot = self.snapshot(cx);
6112 for hunk in hunks_for_ranges(
6113 Some(Point::zero()..snapshot.buffer_snapshot.max_point()).into_iter(),
6114 &snapshot,
6115 ) {
6116 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6117 }
6118 if !revert_changes.is_empty() {
6119 self.transact(cx, |editor, cx| {
6120 editor.revert(revert_changes, cx);
6121 });
6122 }
6123 }
6124
6125 pub fn reload_file(&mut self, _: &ReloadFile, cx: &mut ViewContext<Self>) {
6126 let Some(project) = self.project.clone() else {
6127 return;
6128 };
6129 self.reload(project, cx).detach_and_notify_err(cx);
6130 }
6131
6132 pub fn revert_selected_hunks(&mut self, _: &RevertSelectedHunks, cx: &mut ViewContext<Self>) {
6133 let revert_changes = self.gather_revert_changes(&self.selections.all(cx), cx);
6134 if !revert_changes.is_empty() {
6135 self.transact(cx, |editor, cx| {
6136 editor.revert(revert_changes, cx);
6137 });
6138 }
6139 }
6140
6141 fn revert_hunk(&mut self, hunk: HoveredHunk, cx: &mut ViewContext<Editor>) {
6142 let snapshot = self.buffer.read(cx).read(cx);
6143 if let Some(hunk) = crate::hunk_diff::to_diff_hunk(&hunk, &snapshot) {
6144 drop(snapshot);
6145 let mut revert_changes = HashMap::default();
6146 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6147 if !revert_changes.is_empty() {
6148 self.revert(revert_changes, cx)
6149 }
6150 }
6151 }
6152
6153 pub fn open_active_item_in_terminal(&mut self, _: &OpenInTerminal, cx: &mut ViewContext<Self>) {
6154 if let Some(working_directory) = self.active_excerpt(cx).and_then(|(_, buffer, _)| {
6155 let project_path = buffer.read(cx).project_path(cx)?;
6156 let project = self.project.as_ref()?.read(cx);
6157 let entry = project.entry_for_path(&project_path, cx)?;
6158 let parent = match &entry.canonical_path {
6159 Some(canonical_path) => canonical_path.to_path_buf(),
6160 None => project.absolute_path(&project_path, cx)?,
6161 }
6162 .parent()?
6163 .to_path_buf();
6164 Some(parent)
6165 }) {
6166 cx.dispatch_action(OpenTerminal { working_directory }.boxed_clone());
6167 }
6168 }
6169
6170 fn gather_revert_changes(
6171 &mut self,
6172 selections: &[Selection<Point>],
6173 cx: &mut ViewContext<Editor>,
6174 ) -> HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>> {
6175 let mut revert_changes = HashMap::default();
6176 let snapshot = self.snapshot(cx);
6177 for hunk in hunks_for_selections(&snapshot, selections) {
6178 self.prepare_revert_change(&mut revert_changes, &hunk, cx);
6179 }
6180 revert_changes
6181 }
6182
6183 pub fn prepare_revert_change(
6184 &mut self,
6185 revert_changes: &mut HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
6186 hunk: &MultiBufferDiffHunk,
6187 cx: &AppContext,
6188 ) -> Option<()> {
6189 let buffer = self.buffer.read(cx).buffer(hunk.buffer_id)?;
6190 let buffer = buffer.read(cx);
6191 let change_set = &self.diff_map.diff_bases.get(&hunk.buffer_id)?.change_set;
6192 let original_text = change_set
6193 .read(cx)
6194 .base_text
6195 .as_ref()?
6196 .read(cx)
6197 .as_rope()
6198 .slice(hunk.diff_base_byte_range.clone());
6199 let buffer_snapshot = buffer.snapshot();
6200 let buffer_revert_changes = revert_changes.entry(buffer.remote_id()).or_default();
6201 if let Err(i) = buffer_revert_changes.binary_search_by(|probe| {
6202 probe
6203 .0
6204 .start
6205 .cmp(&hunk.buffer_range.start, &buffer_snapshot)
6206 .then(probe.0.end.cmp(&hunk.buffer_range.end, &buffer_snapshot))
6207 }) {
6208 buffer_revert_changes.insert(i, (hunk.buffer_range.clone(), original_text));
6209 Some(())
6210 } else {
6211 None
6212 }
6213 }
6214
6215 pub fn reverse_lines(&mut self, _: &ReverseLines, cx: &mut ViewContext<Self>) {
6216 self.manipulate_lines(cx, |lines| lines.reverse())
6217 }
6218
6219 pub fn shuffle_lines(&mut self, _: &ShuffleLines, cx: &mut ViewContext<Self>) {
6220 self.manipulate_lines(cx, |lines| lines.shuffle(&mut thread_rng()))
6221 }
6222
6223 fn manipulate_lines<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6224 where
6225 Fn: FnMut(&mut Vec<&str>),
6226 {
6227 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6228 let buffer = self.buffer.read(cx).snapshot(cx);
6229
6230 let mut edits = Vec::new();
6231
6232 let selections = self.selections.all::<Point>(cx);
6233 let mut selections = selections.iter().peekable();
6234 let mut contiguous_row_selections = Vec::new();
6235 let mut new_selections = Vec::new();
6236 let mut added_lines = 0;
6237 let mut removed_lines = 0;
6238
6239 while let Some(selection) = selections.next() {
6240 let (start_row, end_row) = consume_contiguous_rows(
6241 &mut contiguous_row_selections,
6242 selection,
6243 &display_map,
6244 &mut selections,
6245 );
6246
6247 let start_point = Point::new(start_row.0, 0);
6248 let end_point = Point::new(
6249 end_row.previous_row().0,
6250 buffer.line_len(end_row.previous_row()),
6251 );
6252 let text = buffer
6253 .text_for_range(start_point..end_point)
6254 .collect::<String>();
6255
6256 let mut lines = text.split('\n').collect_vec();
6257
6258 let lines_before = lines.len();
6259 callback(&mut lines);
6260 let lines_after = lines.len();
6261
6262 edits.push((start_point..end_point, lines.join("\n")));
6263
6264 // Selections must change based on added and removed line count
6265 let start_row =
6266 MultiBufferRow(start_point.row + added_lines as u32 - removed_lines as u32);
6267 let end_row = MultiBufferRow(start_row.0 + lines_after.saturating_sub(1) as u32);
6268 new_selections.push(Selection {
6269 id: selection.id,
6270 start: start_row,
6271 end: end_row,
6272 goal: SelectionGoal::None,
6273 reversed: selection.reversed,
6274 });
6275
6276 if lines_after > lines_before {
6277 added_lines += lines_after - lines_before;
6278 } else if lines_before > lines_after {
6279 removed_lines += lines_before - lines_after;
6280 }
6281 }
6282
6283 self.transact(cx, |this, cx| {
6284 let buffer = this.buffer.update(cx, |buffer, cx| {
6285 buffer.edit(edits, None, cx);
6286 buffer.snapshot(cx)
6287 });
6288
6289 // Recalculate offsets on newly edited buffer
6290 let new_selections = new_selections
6291 .iter()
6292 .map(|s| {
6293 let start_point = Point::new(s.start.0, 0);
6294 let end_point = Point::new(s.end.0, buffer.line_len(s.end));
6295 Selection {
6296 id: s.id,
6297 start: buffer.point_to_offset(start_point),
6298 end: buffer.point_to_offset(end_point),
6299 goal: s.goal,
6300 reversed: s.reversed,
6301 }
6302 })
6303 .collect();
6304
6305 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6306 s.select(new_selections);
6307 });
6308
6309 this.request_autoscroll(Autoscroll::fit(), cx);
6310 });
6311 }
6312
6313 pub fn convert_to_upper_case(&mut self, _: &ConvertToUpperCase, cx: &mut ViewContext<Self>) {
6314 self.manipulate_text(cx, |text| text.to_uppercase())
6315 }
6316
6317 pub fn convert_to_lower_case(&mut self, _: &ConvertToLowerCase, cx: &mut ViewContext<Self>) {
6318 self.manipulate_text(cx, |text| text.to_lowercase())
6319 }
6320
6321 pub fn convert_to_title_case(&mut self, _: &ConvertToTitleCase, cx: &mut ViewContext<Self>) {
6322 self.manipulate_text(cx, |text| {
6323 text.split('\n')
6324 .map(|line| line.to_case(Case::Title))
6325 .join("\n")
6326 })
6327 }
6328
6329 pub fn convert_to_snake_case(&mut self, _: &ConvertToSnakeCase, cx: &mut ViewContext<Self>) {
6330 self.manipulate_text(cx, |text| text.to_case(Case::Snake))
6331 }
6332
6333 pub fn convert_to_kebab_case(&mut self, _: &ConvertToKebabCase, cx: &mut ViewContext<Self>) {
6334 self.manipulate_text(cx, |text| text.to_case(Case::Kebab))
6335 }
6336
6337 pub fn convert_to_upper_camel_case(
6338 &mut self,
6339 _: &ConvertToUpperCamelCase,
6340 cx: &mut ViewContext<Self>,
6341 ) {
6342 self.manipulate_text(cx, |text| {
6343 text.split('\n')
6344 .map(|line| line.to_case(Case::UpperCamel))
6345 .join("\n")
6346 })
6347 }
6348
6349 pub fn convert_to_lower_camel_case(
6350 &mut self,
6351 _: &ConvertToLowerCamelCase,
6352 cx: &mut ViewContext<Self>,
6353 ) {
6354 self.manipulate_text(cx, |text| text.to_case(Case::Camel))
6355 }
6356
6357 pub fn convert_to_opposite_case(
6358 &mut self,
6359 _: &ConvertToOppositeCase,
6360 cx: &mut ViewContext<Self>,
6361 ) {
6362 self.manipulate_text(cx, |text| {
6363 text.chars()
6364 .fold(String::with_capacity(text.len()), |mut t, c| {
6365 if c.is_uppercase() {
6366 t.extend(c.to_lowercase());
6367 } else {
6368 t.extend(c.to_uppercase());
6369 }
6370 t
6371 })
6372 })
6373 }
6374
6375 fn manipulate_text<Fn>(&mut self, cx: &mut ViewContext<Self>, mut callback: Fn)
6376 where
6377 Fn: FnMut(&str) -> String,
6378 {
6379 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6380 let buffer = self.buffer.read(cx).snapshot(cx);
6381
6382 let mut new_selections = Vec::new();
6383 let mut edits = Vec::new();
6384 let mut selection_adjustment = 0i32;
6385
6386 for selection in self.selections.all::<usize>(cx) {
6387 let selection_is_empty = selection.is_empty();
6388
6389 let (start, end) = if selection_is_empty {
6390 let word_range = movement::surrounding_word(
6391 &display_map,
6392 selection.start.to_display_point(&display_map),
6393 );
6394 let start = word_range.start.to_offset(&display_map, Bias::Left);
6395 let end = word_range.end.to_offset(&display_map, Bias::Left);
6396 (start, end)
6397 } else {
6398 (selection.start, selection.end)
6399 };
6400
6401 let text = buffer.text_for_range(start..end).collect::<String>();
6402 let old_length = text.len() as i32;
6403 let text = callback(&text);
6404
6405 new_selections.push(Selection {
6406 start: (start as i32 - selection_adjustment) as usize,
6407 end: ((start + text.len()) as i32 - selection_adjustment) as usize,
6408 goal: SelectionGoal::None,
6409 ..selection
6410 });
6411
6412 selection_adjustment += old_length - text.len() as i32;
6413
6414 edits.push((start..end, text));
6415 }
6416
6417 self.transact(cx, |this, cx| {
6418 this.buffer.update(cx, |buffer, cx| {
6419 buffer.edit(edits, None, cx);
6420 });
6421
6422 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6423 s.select(new_selections);
6424 });
6425
6426 this.request_autoscroll(Autoscroll::fit(), cx);
6427 });
6428 }
6429
6430 pub fn duplicate(&mut self, upwards: bool, whole_lines: bool, cx: &mut ViewContext<Self>) {
6431 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6432 let buffer = &display_map.buffer_snapshot;
6433 let selections = self.selections.all::<Point>(cx);
6434
6435 let mut edits = Vec::new();
6436 let mut selections_iter = selections.iter().peekable();
6437 while let Some(selection) = selections_iter.next() {
6438 let mut rows = selection.spanned_rows(false, &display_map);
6439 // duplicate line-wise
6440 if whole_lines || selection.start == selection.end {
6441 // Avoid duplicating the same lines twice.
6442 while let Some(next_selection) = selections_iter.peek() {
6443 let next_rows = next_selection.spanned_rows(false, &display_map);
6444 if next_rows.start < rows.end {
6445 rows.end = next_rows.end;
6446 selections_iter.next().unwrap();
6447 } else {
6448 break;
6449 }
6450 }
6451
6452 // Copy the text from the selected row region and splice it either at the start
6453 // or end of the region.
6454 let start = Point::new(rows.start.0, 0);
6455 let end = Point::new(
6456 rows.end.previous_row().0,
6457 buffer.line_len(rows.end.previous_row()),
6458 );
6459 let text = buffer
6460 .text_for_range(start..end)
6461 .chain(Some("\n"))
6462 .collect::<String>();
6463 let insert_location = if upwards {
6464 Point::new(rows.end.0, 0)
6465 } else {
6466 start
6467 };
6468 edits.push((insert_location..insert_location, text));
6469 } else {
6470 // duplicate character-wise
6471 let start = selection.start;
6472 let end = selection.end;
6473 let text = buffer.text_for_range(start..end).collect::<String>();
6474 edits.push((selection.end..selection.end, text));
6475 }
6476 }
6477
6478 self.transact(cx, |this, cx| {
6479 this.buffer.update(cx, |buffer, cx| {
6480 buffer.edit(edits, None, cx);
6481 });
6482
6483 this.request_autoscroll(Autoscroll::fit(), cx);
6484 });
6485 }
6486
6487 pub fn duplicate_line_up(&mut self, _: &DuplicateLineUp, cx: &mut ViewContext<Self>) {
6488 self.duplicate(true, true, cx);
6489 }
6490
6491 pub fn duplicate_line_down(&mut self, _: &DuplicateLineDown, cx: &mut ViewContext<Self>) {
6492 self.duplicate(false, true, cx);
6493 }
6494
6495 pub fn duplicate_selection(&mut self, _: &DuplicateSelection, cx: &mut ViewContext<Self>) {
6496 self.duplicate(false, false, cx);
6497 }
6498
6499 pub fn move_line_up(&mut self, _: &MoveLineUp, cx: &mut ViewContext<Self>) {
6500 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6501 let buffer = self.buffer.read(cx).snapshot(cx);
6502
6503 let mut edits = Vec::new();
6504 let mut unfold_ranges = Vec::new();
6505 let mut refold_creases = Vec::new();
6506
6507 let selections = self.selections.all::<Point>(cx);
6508 let mut selections = selections.iter().peekable();
6509 let mut contiguous_row_selections = Vec::new();
6510 let mut new_selections = Vec::new();
6511
6512 while let Some(selection) = selections.next() {
6513 // Find all the selections that span a contiguous row range
6514 let (start_row, end_row) = consume_contiguous_rows(
6515 &mut contiguous_row_selections,
6516 selection,
6517 &display_map,
6518 &mut selections,
6519 );
6520
6521 // Move the text spanned by the row range to be before the line preceding the row range
6522 if start_row.0 > 0 {
6523 let range_to_move = Point::new(
6524 start_row.previous_row().0,
6525 buffer.line_len(start_row.previous_row()),
6526 )
6527 ..Point::new(
6528 end_row.previous_row().0,
6529 buffer.line_len(end_row.previous_row()),
6530 );
6531 let insertion_point = display_map
6532 .prev_line_boundary(Point::new(start_row.previous_row().0, 0))
6533 .0;
6534
6535 // Don't move lines across excerpts
6536 if buffer
6537 .excerpt_boundaries_in_range((
6538 Bound::Excluded(insertion_point),
6539 Bound::Included(range_to_move.end),
6540 ))
6541 .next()
6542 .is_none()
6543 {
6544 let text = buffer
6545 .text_for_range(range_to_move.clone())
6546 .flat_map(|s| s.chars())
6547 .skip(1)
6548 .chain(['\n'])
6549 .collect::<String>();
6550
6551 edits.push((
6552 buffer.anchor_after(range_to_move.start)
6553 ..buffer.anchor_before(range_to_move.end),
6554 String::new(),
6555 ));
6556 let insertion_anchor = buffer.anchor_after(insertion_point);
6557 edits.push((insertion_anchor..insertion_anchor, text));
6558
6559 let row_delta = range_to_move.start.row - insertion_point.row + 1;
6560
6561 // Move selections up
6562 new_selections.extend(contiguous_row_selections.drain(..).map(
6563 |mut selection| {
6564 selection.start.row -= row_delta;
6565 selection.end.row -= row_delta;
6566 selection
6567 },
6568 ));
6569
6570 // Move folds up
6571 unfold_ranges.push(range_to_move.clone());
6572 for fold in display_map.folds_in_range(
6573 buffer.anchor_before(range_to_move.start)
6574 ..buffer.anchor_after(range_to_move.end),
6575 ) {
6576 let mut start = fold.range.start.to_point(&buffer);
6577 let mut end = fold.range.end.to_point(&buffer);
6578 start.row -= row_delta;
6579 end.row -= row_delta;
6580 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6581 }
6582 }
6583 }
6584
6585 // If we didn't move line(s), preserve the existing selections
6586 new_selections.append(&mut contiguous_row_selections);
6587 }
6588
6589 self.transact(cx, |this, cx| {
6590 this.unfold_ranges(&unfold_ranges, true, true, cx);
6591 this.buffer.update(cx, |buffer, cx| {
6592 for (range, text) in edits {
6593 buffer.edit([(range, text)], None, cx);
6594 }
6595 });
6596 this.fold_creases(refold_creases, true, cx);
6597 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6598 s.select(new_selections);
6599 })
6600 });
6601 }
6602
6603 pub fn move_line_down(&mut self, _: &MoveLineDown, cx: &mut ViewContext<Self>) {
6604 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
6605 let buffer = self.buffer.read(cx).snapshot(cx);
6606
6607 let mut edits = Vec::new();
6608 let mut unfold_ranges = Vec::new();
6609 let mut refold_creases = Vec::new();
6610
6611 let selections = self.selections.all::<Point>(cx);
6612 let mut selections = selections.iter().peekable();
6613 let mut contiguous_row_selections = Vec::new();
6614 let mut new_selections = Vec::new();
6615
6616 while let Some(selection) = selections.next() {
6617 // Find all the selections that span a contiguous row range
6618 let (start_row, end_row) = consume_contiguous_rows(
6619 &mut contiguous_row_selections,
6620 selection,
6621 &display_map,
6622 &mut selections,
6623 );
6624
6625 // Move the text spanned by the row range to be after the last line of the row range
6626 if end_row.0 <= buffer.max_point().row {
6627 let range_to_move =
6628 MultiBufferPoint::new(start_row.0, 0)..MultiBufferPoint::new(end_row.0, 0);
6629 let insertion_point = display_map
6630 .next_line_boundary(MultiBufferPoint::new(end_row.0, 0))
6631 .0;
6632
6633 // Don't move lines across excerpt boundaries
6634 if buffer
6635 .excerpt_boundaries_in_range((
6636 Bound::Excluded(range_to_move.start),
6637 Bound::Included(insertion_point),
6638 ))
6639 .next()
6640 .is_none()
6641 {
6642 let mut text = String::from("\n");
6643 text.extend(buffer.text_for_range(range_to_move.clone()));
6644 text.pop(); // Drop trailing newline
6645 edits.push((
6646 buffer.anchor_after(range_to_move.start)
6647 ..buffer.anchor_before(range_to_move.end),
6648 String::new(),
6649 ));
6650 let insertion_anchor = buffer.anchor_after(insertion_point);
6651 edits.push((insertion_anchor..insertion_anchor, text));
6652
6653 let row_delta = insertion_point.row - range_to_move.end.row + 1;
6654
6655 // Move selections down
6656 new_selections.extend(contiguous_row_selections.drain(..).map(
6657 |mut selection| {
6658 selection.start.row += row_delta;
6659 selection.end.row += row_delta;
6660 selection
6661 },
6662 ));
6663
6664 // Move folds down
6665 unfold_ranges.push(range_to_move.clone());
6666 for fold in display_map.folds_in_range(
6667 buffer.anchor_before(range_to_move.start)
6668 ..buffer.anchor_after(range_to_move.end),
6669 ) {
6670 let mut start = fold.range.start.to_point(&buffer);
6671 let mut end = fold.range.end.to_point(&buffer);
6672 start.row += row_delta;
6673 end.row += row_delta;
6674 refold_creases.push(Crease::simple(start..end, fold.placeholder.clone()));
6675 }
6676 }
6677 }
6678
6679 // If we didn't move line(s), preserve the existing selections
6680 new_selections.append(&mut contiguous_row_selections);
6681 }
6682
6683 self.transact(cx, |this, cx| {
6684 this.unfold_ranges(&unfold_ranges, true, true, cx);
6685 this.buffer.update(cx, |buffer, cx| {
6686 for (range, text) in edits {
6687 buffer.edit([(range, text)], None, cx);
6688 }
6689 });
6690 this.fold_creases(refold_creases, true, cx);
6691 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(new_selections));
6692 });
6693 }
6694
6695 pub fn transpose(&mut self, _: &Transpose, cx: &mut ViewContext<Self>) {
6696 let text_layout_details = &self.text_layout_details(cx);
6697 self.transact(cx, |this, cx| {
6698 let edits = this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6699 let mut edits: Vec<(Range<usize>, String)> = Default::default();
6700 let line_mode = s.line_mode;
6701 s.move_with(|display_map, selection| {
6702 if !selection.is_empty() || line_mode {
6703 return;
6704 }
6705
6706 let mut head = selection.head();
6707 let mut transpose_offset = head.to_offset(display_map, Bias::Right);
6708 if head.column() == display_map.line_len(head.row()) {
6709 transpose_offset = display_map
6710 .buffer_snapshot
6711 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6712 }
6713
6714 if transpose_offset == 0 {
6715 return;
6716 }
6717
6718 *head.column_mut() += 1;
6719 head = display_map.clip_point(head, Bias::Right);
6720 let goal = SelectionGoal::HorizontalPosition(
6721 display_map
6722 .x_for_display_point(head, text_layout_details)
6723 .into(),
6724 );
6725 selection.collapse_to(head, goal);
6726
6727 let transpose_start = display_map
6728 .buffer_snapshot
6729 .clip_offset(transpose_offset.saturating_sub(1), Bias::Left);
6730 if edits.last().map_or(true, |e| e.0.end <= transpose_start) {
6731 let transpose_end = display_map
6732 .buffer_snapshot
6733 .clip_offset(transpose_offset + 1, Bias::Right);
6734 if let Some(ch) =
6735 display_map.buffer_snapshot.chars_at(transpose_start).next()
6736 {
6737 edits.push((transpose_start..transpose_offset, String::new()));
6738 edits.push((transpose_end..transpose_end, ch.to_string()));
6739 }
6740 }
6741 });
6742 edits
6743 });
6744 this.buffer
6745 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6746 let selections = this.selections.all::<usize>(cx);
6747 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6748 s.select(selections);
6749 });
6750 });
6751 }
6752
6753 pub fn rewrap(&mut self, _: &Rewrap, cx: &mut ViewContext<Self>) {
6754 self.rewrap_impl(IsVimMode::No, cx)
6755 }
6756
6757 pub fn rewrap_impl(&mut self, is_vim_mode: IsVimMode, cx: &mut ViewContext<Self>) {
6758 let buffer = self.buffer.read(cx).snapshot(cx);
6759 let selections = self.selections.all::<Point>(cx);
6760 let mut selections = selections.iter().peekable();
6761
6762 let mut edits = Vec::new();
6763 let mut rewrapped_row_ranges = Vec::<RangeInclusive<u32>>::new();
6764
6765 while let Some(selection) = selections.next() {
6766 let mut start_row = selection.start.row;
6767 let mut end_row = selection.end.row;
6768
6769 // Skip selections that overlap with a range that has already been rewrapped.
6770 let selection_range = start_row..end_row;
6771 if rewrapped_row_ranges
6772 .iter()
6773 .any(|range| range.overlaps(&selection_range))
6774 {
6775 continue;
6776 }
6777
6778 let mut should_rewrap = is_vim_mode == IsVimMode::Yes;
6779
6780 if let Some(language_scope) = buffer.language_scope_at(selection.head()) {
6781 match language_scope.language_name().0.as_ref() {
6782 "Markdown" | "Plain Text" => {
6783 should_rewrap = true;
6784 }
6785 _ => {}
6786 }
6787 }
6788
6789 let tab_size = buffer.settings_at(selection.head(), cx).tab_size;
6790
6791 // Since not all lines in the selection may be at the same indent
6792 // level, choose the indent size that is the most common between all
6793 // of the lines.
6794 //
6795 // If there is a tie, we use the deepest indent.
6796 let (indent_size, indent_end) = {
6797 let mut indent_size_occurrences = HashMap::default();
6798 let mut rows_by_indent_size = HashMap::<IndentSize, Vec<u32>>::default();
6799
6800 for row in start_row..=end_row {
6801 let indent = buffer.indent_size_for_line(MultiBufferRow(row));
6802 rows_by_indent_size.entry(indent).or_default().push(row);
6803 *indent_size_occurrences.entry(indent).or_insert(0) += 1;
6804 }
6805
6806 let indent_size = indent_size_occurrences
6807 .into_iter()
6808 .max_by_key(|(indent, count)| (*count, indent.len_with_expanded_tabs(tab_size)))
6809 .map(|(indent, _)| indent)
6810 .unwrap_or_default();
6811 let row = rows_by_indent_size[&indent_size][0];
6812 let indent_end = Point::new(row, indent_size.len);
6813
6814 (indent_size, indent_end)
6815 };
6816
6817 let mut line_prefix = indent_size.chars().collect::<String>();
6818
6819 if let Some(comment_prefix) =
6820 buffer
6821 .language_scope_at(selection.head())
6822 .and_then(|language| {
6823 language
6824 .line_comment_prefixes()
6825 .iter()
6826 .find(|prefix| buffer.contains_str_at(indent_end, prefix))
6827 .cloned()
6828 })
6829 {
6830 line_prefix.push_str(&comment_prefix);
6831 should_rewrap = true;
6832 }
6833
6834 if !should_rewrap {
6835 continue;
6836 }
6837
6838 if selection.is_empty() {
6839 'expand_upwards: while start_row > 0 {
6840 let prev_row = start_row - 1;
6841 if buffer.contains_str_at(Point::new(prev_row, 0), &line_prefix)
6842 && buffer.line_len(MultiBufferRow(prev_row)) as usize > line_prefix.len()
6843 {
6844 start_row = prev_row;
6845 } else {
6846 break 'expand_upwards;
6847 }
6848 }
6849
6850 'expand_downwards: while end_row < buffer.max_point().row {
6851 let next_row = end_row + 1;
6852 if buffer.contains_str_at(Point::new(next_row, 0), &line_prefix)
6853 && buffer.line_len(MultiBufferRow(next_row)) as usize > line_prefix.len()
6854 {
6855 end_row = next_row;
6856 } else {
6857 break 'expand_downwards;
6858 }
6859 }
6860 }
6861
6862 let start = Point::new(start_row, 0);
6863 let end = Point::new(end_row, buffer.line_len(MultiBufferRow(end_row)));
6864 let selection_text = buffer.text_for_range(start..end).collect::<String>();
6865 let Some(lines_without_prefixes) = selection_text
6866 .lines()
6867 .map(|line| {
6868 line.strip_prefix(&line_prefix)
6869 .or_else(|| line.trim_start().strip_prefix(&line_prefix.trim_start()))
6870 .ok_or_else(|| {
6871 anyhow!("line did not start with prefix {line_prefix:?}: {line:?}")
6872 })
6873 })
6874 .collect::<Result<Vec<_>, _>>()
6875 .log_err()
6876 else {
6877 continue;
6878 };
6879
6880 let wrap_column = buffer
6881 .settings_at(Point::new(start_row, 0), cx)
6882 .preferred_line_length as usize;
6883 let wrapped_text = wrap_with_prefix(
6884 line_prefix,
6885 lines_without_prefixes.join(" "),
6886 wrap_column,
6887 tab_size,
6888 );
6889
6890 // TODO: should always use char-based diff while still supporting cursor behavior that
6891 // matches vim.
6892 let diff = match is_vim_mode {
6893 IsVimMode::Yes => TextDiff::from_lines(&selection_text, &wrapped_text),
6894 IsVimMode::No => TextDiff::from_chars(&selection_text, &wrapped_text),
6895 };
6896 let mut offset = start.to_offset(&buffer);
6897 let mut moved_since_edit = true;
6898
6899 for change in diff.iter_all_changes() {
6900 let value = change.value();
6901 match change.tag() {
6902 ChangeTag::Equal => {
6903 offset += value.len();
6904 moved_since_edit = true;
6905 }
6906 ChangeTag::Delete => {
6907 let start = buffer.anchor_after(offset);
6908 let end = buffer.anchor_before(offset + value.len());
6909
6910 if moved_since_edit {
6911 edits.push((start..end, String::new()));
6912 } else {
6913 edits.last_mut().unwrap().0.end = end;
6914 }
6915
6916 offset += value.len();
6917 moved_since_edit = false;
6918 }
6919 ChangeTag::Insert => {
6920 if moved_since_edit {
6921 let anchor = buffer.anchor_after(offset);
6922 edits.push((anchor..anchor, value.to_string()));
6923 } else {
6924 edits.last_mut().unwrap().1.push_str(value);
6925 }
6926
6927 moved_since_edit = false;
6928 }
6929 }
6930 }
6931
6932 rewrapped_row_ranges.push(start_row..=end_row);
6933 }
6934
6935 self.buffer
6936 .update(cx, |buffer, cx| buffer.edit(edits, None, cx));
6937 }
6938
6939 pub fn cut_common(&mut self, cx: &mut ViewContext<Self>) -> ClipboardItem {
6940 let mut text = String::new();
6941 let buffer = self.buffer.read(cx).snapshot(cx);
6942 let mut selections = self.selections.all::<Point>(cx);
6943 let mut clipboard_selections = Vec::with_capacity(selections.len());
6944 {
6945 let max_point = buffer.max_point();
6946 let mut is_first = true;
6947 for selection in &mut selections {
6948 let is_entire_line = selection.is_empty() || self.selections.line_mode;
6949 if is_entire_line {
6950 selection.start = Point::new(selection.start.row, 0);
6951 if !selection.is_empty() && selection.end.column == 0 {
6952 selection.end = cmp::min(max_point, selection.end);
6953 } else {
6954 selection.end = cmp::min(max_point, Point::new(selection.end.row + 1, 0));
6955 }
6956 selection.goal = SelectionGoal::None;
6957 }
6958 if is_first {
6959 is_first = false;
6960 } else {
6961 text += "\n";
6962 }
6963 let mut len = 0;
6964 for chunk in buffer.text_for_range(selection.start..selection.end) {
6965 text.push_str(chunk);
6966 len += chunk.len();
6967 }
6968 clipboard_selections.push(ClipboardSelection {
6969 len,
6970 is_entire_line,
6971 first_line_indent: buffer
6972 .indent_size_for_line(MultiBufferRow(selection.start.row))
6973 .len,
6974 });
6975 }
6976 }
6977
6978 self.transact(cx, |this, cx| {
6979 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
6980 s.select(selections);
6981 });
6982 this.insert("", cx);
6983 });
6984 ClipboardItem::new_string_with_json_metadata(text, clipboard_selections)
6985 }
6986
6987 pub fn cut(&mut self, _: &Cut, cx: &mut ViewContext<Self>) {
6988 let item = self.cut_common(cx);
6989 cx.write_to_clipboard(item);
6990 }
6991
6992 pub fn kill_ring_cut(&mut self, _: &KillRingCut, cx: &mut ViewContext<Self>) {
6993 self.change_selections(None, cx, |s| {
6994 s.move_with(|snapshot, sel| {
6995 if sel.is_empty() {
6996 sel.end = DisplayPoint::new(sel.end.row(), snapshot.line_len(sel.end.row()))
6997 }
6998 });
6999 });
7000 let item = self.cut_common(cx);
7001 cx.set_global(KillRing(item))
7002 }
7003
7004 pub fn kill_ring_yank(&mut self, _: &KillRingYank, cx: &mut ViewContext<Self>) {
7005 let (text, metadata) = if let Some(KillRing(item)) = cx.try_global() {
7006 if let Some(ClipboardEntry::String(kill_ring)) = item.entries().first() {
7007 (kill_ring.text().to_string(), kill_ring.metadata_json())
7008 } else {
7009 return;
7010 }
7011 } else {
7012 return;
7013 };
7014 self.do_paste(&text, metadata, false, cx);
7015 }
7016
7017 pub fn copy(&mut self, _: &Copy, cx: &mut ViewContext<Self>) {
7018 let selections = self.selections.all::<Point>(cx);
7019 let buffer = self.buffer.read(cx).read(cx);
7020 let mut text = String::new();
7021
7022 let mut clipboard_selections = Vec::with_capacity(selections.len());
7023 {
7024 let max_point = buffer.max_point();
7025 let mut is_first = true;
7026 for selection in selections.iter() {
7027 let mut start = selection.start;
7028 let mut end = selection.end;
7029 let is_entire_line = selection.is_empty() || self.selections.line_mode;
7030 if is_entire_line {
7031 start = Point::new(start.row, 0);
7032 end = cmp::min(max_point, Point::new(end.row + 1, 0));
7033 }
7034 if is_first {
7035 is_first = false;
7036 } else {
7037 text += "\n";
7038 }
7039 let mut len = 0;
7040 for chunk in buffer.text_for_range(start..end) {
7041 text.push_str(chunk);
7042 len += chunk.len();
7043 }
7044 clipboard_selections.push(ClipboardSelection {
7045 len,
7046 is_entire_line,
7047 first_line_indent: buffer.indent_size_for_line(MultiBufferRow(start.row)).len,
7048 });
7049 }
7050 }
7051
7052 cx.write_to_clipboard(ClipboardItem::new_string_with_json_metadata(
7053 text,
7054 clipboard_selections,
7055 ));
7056 }
7057
7058 pub fn do_paste(
7059 &mut self,
7060 text: &String,
7061 clipboard_selections: Option<Vec<ClipboardSelection>>,
7062 handle_entire_lines: bool,
7063 cx: &mut ViewContext<Self>,
7064 ) {
7065 if self.read_only(cx) {
7066 return;
7067 }
7068
7069 let clipboard_text = Cow::Borrowed(text);
7070
7071 self.transact(cx, |this, cx| {
7072 if let Some(mut clipboard_selections) = clipboard_selections {
7073 let old_selections = this.selections.all::<usize>(cx);
7074 let all_selections_were_entire_line =
7075 clipboard_selections.iter().all(|s| s.is_entire_line);
7076 let first_selection_indent_column =
7077 clipboard_selections.first().map(|s| s.first_line_indent);
7078 if clipboard_selections.len() != old_selections.len() {
7079 clipboard_selections.drain(..);
7080 }
7081 let cursor_offset = this.selections.last::<usize>(cx).head();
7082 let mut auto_indent_on_paste = true;
7083
7084 this.buffer.update(cx, |buffer, cx| {
7085 let snapshot = buffer.read(cx);
7086 auto_indent_on_paste =
7087 snapshot.settings_at(cursor_offset, cx).auto_indent_on_paste;
7088
7089 let mut start_offset = 0;
7090 let mut edits = Vec::new();
7091 let mut original_indent_columns = Vec::new();
7092 for (ix, selection) in old_selections.iter().enumerate() {
7093 let to_insert;
7094 let entire_line;
7095 let original_indent_column;
7096 if let Some(clipboard_selection) = clipboard_selections.get(ix) {
7097 let end_offset = start_offset + clipboard_selection.len;
7098 to_insert = &clipboard_text[start_offset..end_offset];
7099 entire_line = clipboard_selection.is_entire_line;
7100 start_offset = end_offset + 1;
7101 original_indent_column = Some(clipboard_selection.first_line_indent);
7102 } else {
7103 to_insert = clipboard_text.as_str();
7104 entire_line = all_selections_were_entire_line;
7105 original_indent_column = first_selection_indent_column
7106 }
7107
7108 // If the corresponding selection was empty when this slice of the
7109 // clipboard text was written, then the entire line containing the
7110 // selection was copied. If this selection is also currently empty,
7111 // then paste the line before the current line of the buffer.
7112 let range = if selection.is_empty() && handle_entire_lines && entire_line {
7113 let column = selection.start.to_point(&snapshot).column as usize;
7114 let line_start = selection.start - column;
7115 line_start..line_start
7116 } else {
7117 selection.range()
7118 };
7119
7120 edits.push((range, to_insert));
7121 original_indent_columns.extend(original_indent_column);
7122 }
7123 drop(snapshot);
7124
7125 buffer.edit(
7126 edits,
7127 if auto_indent_on_paste {
7128 Some(AutoindentMode::Block {
7129 original_indent_columns,
7130 })
7131 } else {
7132 None
7133 },
7134 cx,
7135 );
7136 });
7137
7138 let selections = this.selections.all::<usize>(cx);
7139 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
7140 } else {
7141 this.insert(&clipboard_text, cx);
7142 }
7143 });
7144 }
7145
7146 pub fn paste(&mut self, _: &Paste, cx: &mut ViewContext<Self>) {
7147 if let Some(item) = cx.read_from_clipboard() {
7148 let entries = item.entries();
7149
7150 match entries.first() {
7151 // For now, we only support applying metadata if there's one string. In the future, we can incorporate all the selections
7152 // of all the pasted entries.
7153 Some(ClipboardEntry::String(clipboard_string)) if entries.len() == 1 => self
7154 .do_paste(
7155 clipboard_string.text(),
7156 clipboard_string.metadata_json::<Vec<ClipboardSelection>>(),
7157 true,
7158 cx,
7159 ),
7160 _ => self.do_paste(&item.text().unwrap_or_default(), None, true, cx),
7161 }
7162 }
7163 }
7164
7165 pub fn undo(&mut self, _: &Undo, cx: &mut ViewContext<Self>) {
7166 if self.read_only(cx) {
7167 return;
7168 }
7169
7170 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.undo(cx)) {
7171 if let Some((selections, _)) =
7172 self.selection_history.transaction(transaction_id).cloned()
7173 {
7174 self.change_selections(None, cx, |s| {
7175 s.select_anchors(selections.to_vec());
7176 });
7177 }
7178 self.request_autoscroll(Autoscroll::fit(), cx);
7179 self.unmark_text(cx);
7180 self.refresh_inline_completion(true, false, cx);
7181 cx.emit(EditorEvent::Edited { transaction_id });
7182 cx.emit(EditorEvent::TransactionUndone { transaction_id });
7183 }
7184 }
7185
7186 pub fn redo(&mut self, _: &Redo, cx: &mut ViewContext<Self>) {
7187 if self.read_only(cx) {
7188 return;
7189 }
7190
7191 if let Some(transaction_id) = self.buffer.update(cx, |buffer, cx| buffer.redo(cx)) {
7192 if let Some((_, Some(selections))) =
7193 self.selection_history.transaction(transaction_id).cloned()
7194 {
7195 self.change_selections(None, cx, |s| {
7196 s.select_anchors(selections.to_vec());
7197 });
7198 }
7199 self.request_autoscroll(Autoscroll::fit(), cx);
7200 self.unmark_text(cx);
7201 self.refresh_inline_completion(true, false, cx);
7202 cx.emit(EditorEvent::Edited { transaction_id });
7203 }
7204 }
7205
7206 pub fn finalize_last_transaction(&mut self, cx: &mut ViewContext<Self>) {
7207 self.buffer
7208 .update(cx, |buffer, cx| buffer.finalize_last_transaction(cx));
7209 }
7210
7211 pub fn group_until_transaction(&mut self, tx_id: TransactionId, cx: &mut ViewContext<Self>) {
7212 self.buffer
7213 .update(cx, |buffer, cx| buffer.group_until_transaction(tx_id, cx));
7214 }
7215
7216 pub fn move_left(&mut self, _: &MoveLeft, cx: &mut ViewContext<Self>) {
7217 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7218 let line_mode = s.line_mode;
7219 s.move_with(|map, selection| {
7220 let cursor = if selection.is_empty() && !line_mode {
7221 movement::left(map, selection.start)
7222 } else {
7223 selection.start
7224 };
7225 selection.collapse_to(cursor, SelectionGoal::None);
7226 });
7227 })
7228 }
7229
7230 pub fn select_left(&mut self, _: &SelectLeft, cx: &mut ViewContext<Self>) {
7231 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7232 s.move_heads_with(|map, head, _| (movement::left(map, head), SelectionGoal::None));
7233 })
7234 }
7235
7236 pub fn move_right(&mut self, _: &MoveRight, cx: &mut ViewContext<Self>) {
7237 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7238 let line_mode = s.line_mode;
7239 s.move_with(|map, selection| {
7240 let cursor = if selection.is_empty() && !line_mode {
7241 movement::right(map, selection.end)
7242 } else {
7243 selection.end
7244 };
7245 selection.collapse_to(cursor, SelectionGoal::None)
7246 });
7247 })
7248 }
7249
7250 pub fn select_right(&mut self, _: &SelectRight, cx: &mut ViewContext<Self>) {
7251 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7252 s.move_heads_with(|map, head, _| (movement::right(map, head), SelectionGoal::None));
7253 })
7254 }
7255
7256 pub fn move_up(&mut self, _: &MoveUp, cx: &mut ViewContext<Self>) {
7257 if self.take_rename(true, cx).is_some() {
7258 return;
7259 }
7260
7261 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7262 cx.propagate();
7263 return;
7264 }
7265
7266 let text_layout_details = &self.text_layout_details(cx);
7267 let selection_count = self.selections.count();
7268 let first_selection = self.selections.first_anchor();
7269
7270 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7271 let line_mode = s.line_mode;
7272 s.move_with(|map, selection| {
7273 if !selection.is_empty() && !line_mode {
7274 selection.goal = SelectionGoal::None;
7275 }
7276 let (cursor, goal) = movement::up(
7277 map,
7278 selection.start,
7279 selection.goal,
7280 false,
7281 text_layout_details,
7282 );
7283 selection.collapse_to(cursor, goal);
7284 });
7285 });
7286
7287 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7288 {
7289 cx.propagate();
7290 }
7291 }
7292
7293 pub fn move_up_by_lines(&mut self, action: &MoveUpByLines, cx: &mut ViewContext<Self>) {
7294 if self.take_rename(true, cx).is_some() {
7295 return;
7296 }
7297
7298 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7299 cx.propagate();
7300 return;
7301 }
7302
7303 let text_layout_details = &self.text_layout_details(cx);
7304
7305 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7306 let line_mode = s.line_mode;
7307 s.move_with(|map, selection| {
7308 if !selection.is_empty() && !line_mode {
7309 selection.goal = SelectionGoal::None;
7310 }
7311 let (cursor, goal) = movement::up_by_rows(
7312 map,
7313 selection.start,
7314 action.lines,
7315 selection.goal,
7316 false,
7317 text_layout_details,
7318 );
7319 selection.collapse_to(cursor, goal);
7320 });
7321 })
7322 }
7323
7324 pub fn move_down_by_lines(&mut self, action: &MoveDownByLines, cx: &mut ViewContext<Self>) {
7325 if self.take_rename(true, cx).is_some() {
7326 return;
7327 }
7328
7329 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7330 cx.propagate();
7331 return;
7332 }
7333
7334 let text_layout_details = &self.text_layout_details(cx);
7335
7336 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7337 let line_mode = s.line_mode;
7338 s.move_with(|map, selection| {
7339 if !selection.is_empty() && !line_mode {
7340 selection.goal = SelectionGoal::None;
7341 }
7342 let (cursor, goal) = movement::down_by_rows(
7343 map,
7344 selection.start,
7345 action.lines,
7346 selection.goal,
7347 false,
7348 text_layout_details,
7349 );
7350 selection.collapse_to(cursor, goal);
7351 });
7352 })
7353 }
7354
7355 pub fn select_down_by_lines(&mut self, action: &SelectDownByLines, cx: &mut ViewContext<Self>) {
7356 let text_layout_details = &self.text_layout_details(cx);
7357 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7358 s.move_heads_with(|map, head, goal| {
7359 movement::down_by_rows(map, head, action.lines, goal, false, text_layout_details)
7360 })
7361 })
7362 }
7363
7364 pub fn select_up_by_lines(&mut self, action: &SelectUpByLines, cx: &mut ViewContext<Self>) {
7365 let text_layout_details = &self.text_layout_details(cx);
7366 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7367 s.move_heads_with(|map, head, goal| {
7368 movement::up_by_rows(map, head, action.lines, goal, false, text_layout_details)
7369 })
7370 })
7371 }
7372
7373 pub fn select_page_up(&mut self, _: &SelectPageUp, cx: &mut ViewContext<Self>) {
7374 let Some(row_count) = self.visible_row_count() else {
7375 return;
7376 };
7377
7378 let text_layout_details = &self.text_layout_details(cx);
7379
7380 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7381 s.move_heads_with(|map, head, goal| {
7382 movement::up_by_rows(map, head, row_count, goal, false, text_layout_details)
7383 })
7384 })
7385 }
7386
7387 pub fn move_page_up(&mut self, action: &MovePageUp, cx: &mut ViewContext<Self>) {
7388 if self.take_rename(true, cx).is_some() {
7389 return;
7390 }
7391
7392 if self
7393 .context_menu
7394 .borrow_mut()
7395 .as_mut()
7396 .map(|menu| menu.select_first(self.completion_provider.as_deref(), cx))
7397 .unwrap_or(false)
7398 {
7399 return;
7400 }
7401
7402 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7403 cx.propagate();
7404 return;
7405 }
7406
7407 let Some(row_count) = self.visible_row_count() else {
7408 return;
7409 };
7410
7411 let autoscroll = if action.center_cursor {
7412 Autoscroll::center()
7413 } else {
7414 Autoscroll::fit()
7415 };
7416
7417 let text_layout_details = &self.text_layout_details(cx);
7418
7419 self.change_selections(Some(autoscroll), cx, |s| {
7420 let line_mode = s.line_mode;
7421 s.move_with(|map, selection| {
7422 if !selection.is_empty() && !line_mode {
7423 selection.goal = SelectionGoal::None;
7424 }
7425 let (cursor, goal) = movement::up_by_rows(
7426 map,
7427 selection.end,
7428 row_count,
7429 selection.goal,
7430 false,
7431 text_layout_details,
7432 );
7433 selection.collapse_to(cursor, goal);
7434 });
7435 });
7436 }
7437
7438 pub fn select_up(&mut self, _: &SelectUp, cx: &mut ViewContext<Self>) {
7439 let text_layout_details = &self.text_layout_details(cx);
7440 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7441 s.move_heads_with(|map, head, goal| {
7442 movement::up(map, head, goal, false, text_layout_details)
7443 })
7444 })
7445 }
7446
7447 pub fn move_down(&mut self, _: &MoveDown, cx: &mut ViewContext<Self>) {
7448 self.take_rename(true, cx);
7449
7450 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7451 cx.propagate();
7452 return;
7453 }
7454
7455 let text_layout_details = &self.text_layout_details(cx);
7456 let selection_count = self.selections.count();
7457 let first_selection = self.selections.first_anchor();
7458
7459 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7460 let line_mode = s.line_mode;
7461 s.move_with(|map, selection| {
7462 if !selection.is_empty() && !line_mode {
7463 selection.goal = SelectionGoal::None;
7464 }
7465 let (cursor, goal) = movement::down(
7466 map,
7467 selection.end,
7468 selection.goal,
7469 false,
7470 text_layout_details,
7471 );
7472 selection.collapse_to(cursor, goal);
7473 });
7474 });
7475
7476 if selection_count == 1 && first_selection.range() == self.selections.first_anchor().range()
7477 {
7478 cx.propagate();
7479 }
7480 }
7481
7482 pub fn select_page_down(&mut self, _: &SelectPageDown, cx: &mut ViewContext<Self>) {
7483 let Some(row_count) = self.visible_row_count() else {
7484 return;
7485 };
7486
7487 let text_layout_details = &self.text_layout_details(cx);
7488
7489 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7490 s.move_heads_with(|map, head, goal| {
7491 movement::down_by_rows(map, head, row_count, goal, false, text_layout_details)
7492 })
7493 })
7494 }
7495
7496 pub fn move_page_down(&mut self, action: &MovePageDown, cx: &mut ViewContext<Self>) {
7497 if self.take_rename(true, cx).is_some() {
7498 return;
7499 }
7500
7501 if self
7502 .context_menu
7503 .borrow_mut()
7504 .as_mut()
7505 .map(|menu| menu.select_last(self.completion_provider.as_deref(), cx))
7506 .unwrap_or(false)
7507 {
7508 return;
7509 }
7510
7511 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7512 cx.propagate();
7513 return;
7514 }
7515
7516 let Some(row_count) = self.visible_row_count() else {
7517 return;
7518 };
7519
7520 let autoscroll = if action.center_cursor {
7521 Autoscroll::center()
7522 } else {
7523 Autoscroll::fit()
7524 };
7525
7526 let text_layout_details = &self.text_layout_details(cx);
7527 self.change_selections(Some(autoscroll), cx, |s| {
7528 let line_mode = s.line_mode;
7529 s.move_with(|map, selection| {
7530 if !selection.is_empty() && !line_mode {
7531 selection.goal = SelectionGoal::None;
7532 }
7533 let (cursor, goal) = movement::down_by_rows(
7534 map,
7535 selection.end,
7536 row_count,
7537 selection.goal,
7538 false,
7539 text_layout_details,
7540 );
7541 selection.collapse_to(cursor, goal);
7542 });
7543 });
7544 }
7545
7546 pub fn select_down(&mut self, _: &SelectDown, cx: &mut ViewContext<Self>) {
7547 let text_layout_details = &self.text_layout_details(cx);
7548 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7549 s.move_heads_with(|map, head, goal| {
7550 movement::down(map, head, goal, false, text_layout_details)
7551 })
7552 });
7553 }
7554
7555 pub fn context_menu_first(&mut self, _: &ContextMenuFirst, cx: &mut ViewContext<Self>) {
7556 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7557 context_menu.select_first(self.completion_provider.as_deref(), cx);
7558 }
7559 }
7560
7561 pub fn context_menu_prev(&mut self, _: &ContextMenuPrev, cx: &mut ViewContext<Self>) {
7562 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7563 context_menu.select_prev(self.completion_provider.as_deref(), cx);
7564 }
7565 }
7566
7567 pub fn context_menu_next(&mut self, _: &ContextMenuNext, cx: &mut ViewContext<Self>) {
7568 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7569 context_menu.select_next(self.completion_provider.as_deref(), cx);
7570 }
7571 }
7572
7573 pub fn context_menu_last(&mut self, _: &ContextMenuLast, cx: &mut ViewContext<Self>) {
7574 if let Some(context_menu) = self.context_menu.borrow_mut().as_mut() {
7575 context_menu.select_last(self.completion_provider.as_deref(), cx);
7576 }
7577 }
7578
7579 pub fn move_to_previous_word_start(
7580 &mut self,
7581 _: &MoveToPreviousWordStart,
7582 cx: &mut ViewContext<Self>,
7583 ) {
7584 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7585 s.move_cursors_with(|map, head, _| {
7586 (
7587 movement::previous_word_start(map, head),
7588 SelectionGoal::None,
7589 )
7590 });
7591 })
7592 }
7593
7594 pub fn move_to_previous_subword_start(
7595 &mut self,
7596 _: &MoveToPreviousSubwordStart,
7597 cx: &mut ViewContext<Self>,
7598 ) {
7599 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7600 s.move_cursors_with(|map, head, _| {
7601 (
7602 movement::previous_subword_start(map, head),
7603 SelectionGoal::None,
7604 )
7605 });
7606 })
7607 }
7608
7609 pub fn select_to_previous_word_start(
7610 &mut self,
7611 _: &SelectToPreviousWordStart,
7612 cx: &mut ViewContext<Self>,
7613 ) {
7614 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7615 s.move_heads_with(|map, head, _| {
7616 (
7617 movement::previous_word_start(map, head),
7618 SelectionGoal::None,
7619 )
7620 });
7621 })
7622 }
7623
7624 pub fn select_to_previous_subword_start(
7625 &mut self,
7626 _: &SelectToPreviousSubwordStart,
7627 cx: &mut ViewContext<Self>,
7628 ) {
7629 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7630 s.move_heads_with(|map, head, _| {
7631 (
7632 movement::previous_subword_start(map, head),
7633 SelectionGoal::None,
7634 )
7635 });
7636 })
7637 }
7638
7639 pub fn delete_to_previous_word_start(
7640 &mut self,
7641 action: &DeleteToPreviousWordStart,
7642 cx: &mut ViewContext<Self>,
7643 ) {
7644 self.transact(cx, |this, cx| {
7645 this.select_autoclose_pair(cx);
7646 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7647 let line_mode = s.line_mode;
7648 s.move_with(|map, selection| {
7649 if selection.is_empty() && !line_mode {
7650 let cursor = if action.ignore_newlines {
7651 movement::previous_word_start(map, selection.head())
7652 } else {
7653 movement::previous_word_start_or_newline(map, selection.head())
7654 };
7655 selection.set_head(cursor, SelectionGoal::None);
7656 }
7657 });
7658 });
7659 this.insert("", cx);
7660 });
7661 }
7662
7663 pub fn delete_to_previous_subword_start(
7664 &mut self,
7665 _: &DeleteToPreviousSubwordStart,
7666 cx: &mut ViewContext<Self>,
7667 ) {
7668 self.transact(cx, |this, cx| {
7669 this.select_autoclose_pair(cx);
7670 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7671 let line_mode = s.line_mode;
7672 s.move_with(|map, selection| {
7673 if selection.is_empty() && !line_mode {
7674 let cursor = movement::previous_subword_start(map, selection.head());
7675 selection.set_head(cursor, SelectionGoal::None);
7676 }
7677 });
7678 });
7679 this.insert("", cx);
7680 });
7681 }
7682
7683 pub fn move_to_next_word_end(&mut self, _: &MoveToNextWordEnd, cx: &mut ViewContext<Self>) {
7684 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7685 s.move_cursors_with(|map, head, _| {
7686 (movement::next_word_end(map, head), SelectionGoal::None)
7687 });
7688 })
7689 }
7690
7691 pub fn move_to_next_subword_end(
7692 &mut self,
7693 _: &MoveToNextSubwordEnd,
7694 cx: &mut ViewContext<Self>,
7695 ) {
7696 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7697 s.move_cursors_with(|map, head, _| {
7698 (movement::next_subword_end(map, head), SelectionGoal::None)
7699 });
7700 })
7701 }
7702
7703 pub fn select_to_next_word_end(&mut self, _: &SelectToNextWordEnd, cx: &mut ViewContext<Self>) {
7704 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7705 s.move_heads_with(|map, head, _| {
7706 (movement::next_word_end(map, head), SelectionGoal::None)
7707 });
7708 })
7709 }
7710
7711 pub fn select_to_next_subword_end(
7712 &mut self,
7713 _: &SelectToNextSubwordEnd,
7714 cx: &mut ViewContext<Self>,
7715 ) {
7716 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7717 s.move_heads_with(|map, head, _| {
7718 (movement::next_subword_end(map, head), SelectionGoal::None)
7719 });
7720 })
7721 }
7722
7723 pub fn delete_to_next_word_end(
7724 &mut self,
7725 action: &DeleteToNextWordEnd,
7726 cx: &mut ViewContext<Self>,
7727 ) {
7728 self.transact(cx, |this, cx| {
7729 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7730 let line_mode = s.line_mode;
7731 s.move_with(|map, selection| {
7732 if selection.is_empty() && !line_mode {
7733 let cursor = if action.ignore_newlines {
7734 movement::next_word_end(map, selection.head())
7735 } else {
7736 movement::next_word_end_or_newline(map, selection.head())
7737 };
7738 selection.set_head(cursor, SelectionGoal::None);
7739 }
7740 });
7741 });
7742 this.insert("", cx);
7743 });
7744 }
7745
7746 pub fn delete_to_next_subword_end(
7747 &mut self,
7748 _: &DeleteToNextSubwordEnd,
7749 cx: &mut ViewContext<Self>,
7750 ) {
7751 self.transact(cx, |this, cx| {
7752 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7753 s.move_with(|map, selection| {
7754 if selection.is_empty() {
7755 let cursor = movement::next_subword_end(map, selection.head());
7756 selection.set_head(cursor, SelectionGoal::None);
7757 }
7758 });
7759 });
7760 this.insert("", cx);
7761 });
7762 }
7763
7764 pub fn move_to_beginning_of_line(
7765 &mut self,
7766 action: &MoveToBeginningOfLine,
7767 cx: &mut ViewContext<Self>,
7768 ) {
7769 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7770 s.move_cursors_with(|map, head, _| {
7771 (
7772 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7773 SelectionGoal::None,
7774 )
7775 });
7776 })
7777 }
7778
7779 pub fn select_to_beginning_of_line(
7780 &mut self,
7781 action: &SelectToBeginningOfLine,
7782 cx: &mut ViewContext<Self>,
7783 ) {
7784 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7785 s.move_heads_with(|map, head, _| {
7786 (
7787 movement::indented_line_beginning(map, head, action.stop_at_soft_wraps),
7788 SelectionGoal::None,
7789 )
7790 });
7791 });
7792 }
7793
7794 pub fn delete_to_beginning_of_line(
7795 &mut self,
7796 _: &DeleteToBeginningOfLine,
7797 cx: &mut ViewContext<Self>,
7798 ) {
7799 self.transact(cx, |this, cx| {
7800 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
7801 s.move_with(|_, selection| {
7802 selection.reversed = true;
7803 });
7804 });
7805
7806 this.select_to_beginning_of_line(
7807 &SelectToBeginningOfLine {
7808 stop_at_soft_wraps: false,
7809 },
7810 cx,
7811 );
7812 this.backspace(&Backspace, cx);
7813 });
7814 }
7815
7816 pub fn move_to_end_of_line(&mut self, action: &MoveToEndOfLine, cx: &mut ViewContext<Self>) {
7817 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7818 s.move_cursors_with(|map, head, _| {
7819 (
7820 movement::line_end(map, head, action.stop_at_soft_wraps),
7821 SelectionGoal::None,
7822 )
7823 });
7824 })
7825 }
7826
7827 pub fn select_to_end_of_line(
7828 &mut self,
7829 action: &SelectToEndOfLine,
7830 cx: &mut ViewContext<Self>,
7831 ) {
7832 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7833 s.move_heads_with(|map, head, _| {
7834 (
7835 movement::line_end(map, head, action.stop_at_soft_wraps),
7836 SelectionGoal::None,
7837 )
7838 });
7839 })
7840 }
7841
7842 pub fn delete_to_end_of_line(&mut self, _: &DeleteToEndOfLine, cx: &mut ViewContext<Self>) {
7843 self.transact(cx, |this, cx| {
7844 this.select_to_end_of_line(
7845 &SelectToEndOfLine {
7846 stop_at_soft_wraps: false,
7847 },
7848 cx,
7849 );
7850 this.delete(&Delete, cx);
7851 });
7852 }
7853
7854 pub fn cut_to_end_of_line(&mut self, _: &CutToEndOfLine, cx: &mut ViewContext<Self>) {
7855 self.transact(cx, |this, cx| {
7856 this.select_to_end_of_line(
7857 &SelectToEndOfLine {
7858 stop_at_soft_wraps: false,
7859 },
7860 cx,
7861 );
7862 this.cut(&Cut, cx);
7863 });
7864 }
7865
7866 pub fn move_to_start_of_paragraph(
7867 &mut self,
7868 _: &MoveToStartOfParagraph,
7869 cx: &mut ViewContext<Self>,
7870 ) {
7871 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7872 cx.propagate();
7873 return;
7874 }
7875
7876 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7877 s.move_with(|map, selection| {
7878 selection.collapse_to(
7879 movement::start_of_paragraph(map, selection.head(), 1),
7880 SelectionGoal::None,
7881 )
7882 });
7883 })
7884 }
7885
7886 pub fn move_to_end_of_paragraph(
7887 &mut self,
7888 _: &MoveToEndOfParagraph,
7889 cx: &mut ViewContext<Self>,
7890 ) {
7891 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7892 cx.propagate();
7893 return;
7894 }
7895
7896 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7897 s.move_with(|map, selection| {
7898 selection.collapse_to(
7899 movement::end_of_paragraph(map, selection.head(), 1),
7900 SelectionGoal::None,
7901 )
7902 });
7903 })
7904 }
7905
7906 pub fn select_to_start_of_paragraph(
7907 &mut self,
7908 _: &SelectToStartOfParagraph,
7909 cx: &mut ViewContext<Self>,
7910 ) {
7911 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7912 cx.propagate();
7913 return;
7914 }
7915
7916 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7917 s.move_heads_with(|map, head, _| {
7918 (
7919 movement::start_of_paragraph(map, head, 1),
7920 SelectionGoal::None,
7921 )
7922 });
7923 })
7924 }
7925
7926 pub fn select_to_end_of_paragraph(
7927 &mut self,
7928 _: &SelectToEndOfParagraph,
7929 cx: &mut ViewContext<Self>,
7930 ) {
7931 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7932 cx.propagate();
7933 return;
7934 }
7935
7936 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7937 s.move_heads_with(|map, head, _| {
7938 (
7939 movement::end_of_paragraph(map, head, 1),
7940 SelectionGoal::None,
7941 )
7942 });
7943 })
7944 }
7945
7946 pub fn move_to_beginning(&mut self, _: &MoveToBeginning, cx: &mut ViewContext<Self>) {
7947 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7948 cx.propagate();
7949 return;
7950 }
7951
7952 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7953 s.select_ranges(vec![0..0]);
7954 });
7955 }
7956
7957 pub fn select_to_beginning(&mut self, _: &SelectToBeginning, cx: &mut ViewContext<Self>) {
7958 let mut selection = self.selections.last::<Point>(cx);
7959 selection.set_head(Point::zero(), SelectionGoal::None);
7960
7961 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7962 s.select(vec![selection]);
7963 });
7964 }
7965
7966 pub fn move_to_end(&mut self, _: &MoveToEnd, cx: &mut ViewContext<Self>) {
7967 if matches!(self.mode, EditorMode::SingleLine { .. }) {
7968 cx.propagate();
7969 return;
7970 }
7971
7972 let cursor = self.buffer.read(cx).read(cx).len();
7973 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
7974 s.select_ranges(vec![cursor..cursor])
7975 });
7976 }
7977
7978 pub fn set_nav_history(&mut self, nav_history: Option<ItemNavHistory>) {
7979 self.nav_history = nav_history;
7980 }
7981
7982 pub fn nav_history(&self) -> Option<&ItemNavHistory> {
7983 self.nav_history.as_ref()
7984 }
7985
7986 fn push_to_nav_history(
7987 &mut self,
7988 cursor_anchor: Anchor,
7989 new_position: Option<Point>,
7990 cx: &mut ViewContext<Self>,
7991 ) {
7992 if let Some(nav_history) = self.nav_history.as_mut() {
7993 let buffer = self.buffer.read(cx).read(cx);
7994 let cursor_position = cursor_anchor.to_point(&buffer);
7995 let scroll_state = self.scroll_manager.anchor();
7996 let scroll_top_row = scroll_state.top_row(&buffer);
7997 drop(buffer);
7998
7999 if let Some(new_position) = new_position {
8000 let row_delta = (new_position.row as i64 - cursor_position.row as i64).abs();
8001 if row_delta < MIN_NAVIGATION_HISTORY_ROW_DELTA {
8002 return;
8003 }
8004 }
8005
8006 nav_history.push(
8007 Some(NavigationData {
8008 cursor_anchor,
8009 cursor_position,
8010 scroll_anchor: scroll_state,
8011 scroll_top_row,
8012 }),
8013 cx,
8014 );
8015 }
8016 }
8017
8018 pub fn select_to_end(&mut self, _: &SelectToEnd, cx: &mut ViewContext<Self>) {
8019 let buffer = self.buffer.read(cx).snapshot(cx);
8020 let mut selection = self.selections.first::<usize>(cx);
8021 selection.set_head(buffer.len(), SelectionGoal::None);
8022 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8023 s.select(vec![selection]);
8024 });
8025 }
8026
8027 pub fn select_all(&mut self, _: &SelectAll, cx: &mut ViewContext<Self>) {
8028 let end = self.buffer.read(cx).read(cx).len();
8029 self.change_selections(None, cx, |s| {
8030 s.select_ranges(vec![0..end]);
8031 });
8032 }
8033
8034 pub fn select_line(&mut self, _: &SelectLine, cx: &mut ViewContext<Self>) {
8035 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8036 let mut selections = self.selections.all::<Point>(cx);
8037 let max_point = display_map.buffer_snapshot.max_point();
8038 for selection in &mut selections {
8039 let rows = selection.spanned_rows(true, &display_map);
8040 selection.start = Point::new(rows.start.0, 0);
8041 selection.end = cmp::min(max_point, Point::new(rows.end.0, 0));
8042 selection.reversed = false;
8043 }
8044 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8045 s.select(selections);
8046 });
8047 }
8048
8049 pub fn split_selection_into_lines(
8050 &mut self,
8051 _: &SplitSelectionIntoLines,
8052 cx: &mut ViewContext<Self>,
8053 ) {
8054 let mut to_unfold = Vec::new();
8055 let mut new_selection_ranges = Vec::new();
8056 {
8057 let selections = self.selections.all::<Point>(cx);
8058 let buffer = self.buffer.read(cx).read(cx);
8059 for selection in selections {
8060 for row in selection.start.row..selection.end.row {
8061 let cursor = Point::new(row, buffer.line_len(MultiBufferRow(row)));
8062 new_selection_ranges.push(cursor..cursor);
8063 }
8064 new_selection_ranges.push(selection.end..selection.end);
8065 to_unfold.push(selection.start..selection.end);
8066 }
8067 }
8068 self.unfold_ranges(&to_unfold, true, true, cx);
8069 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8070 s.select_ranges(new_selection_ranges);
8071 });
8072 }
8073
8074 pub fn add_selection_above(&mut self, _: &AddSelectionAbove, cx: &mut ViewContext<Self>) {
8075 self.add_selection(true, cx);
8076 }
8077
8078 pub fn add_selection_below(&mut self, _: &AddSelectionBelow, cx: &mut ViewContext<Self>) {
8079 self.add_selection(false, cx);
8080 }
8081
8082 fn add_selection(&mut self, above: bool, cx: &mut ViewContext<Self>) {
8083 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8084 let mut selections = self.selections.all::<Point>(cx);
8085 let text_layout_details = self.text_layout_details(cx);
8086 let mut state = self.add_selections_state.take().unwrap_or_else(|| {
8087 let oldest_selection = selections.iter().min_by_key(|s| s.id).unwrap().clone();
8088 let range = oldest_selection.display_range(&display_map).sorted();
8089
8090 let start_x = display_map.x_for_display_point(range.start, &text_layout_details);
8091 let end_x = display_map.x_for_display_point(range.end, &text_layout_details);
8092 let positions = start_x.min(end_x)..start_x.max(end_x);
8093
8094 selections.clear();
8095 let mut stack = Vec::new();
8096 for row in range.start.row().0..=range.end.row().0 {
8097 if let Some(selection) = self.selections.build_columnar_selection(
8098 &display_map,
8099 DisplayRow(row),
8100 &positions,
8101 oldest_selection.reversed,
8102 &text_layout_details,
8103 ) {
8104 stack.push(selection.id);
8105 selections.push(selection);
8106 }
8107 }
8108
8109 if above {
8110 stack.reverse();
8111 }
8112
8113 AddSelectionsState { above, stack }
8114 });
8115
8116 let last_added_selection = *state.stack.last().unwrap();
8117 let mut new_selections = Vec::new();
8118 if above == state.above {
8119 let end_row = if above {
8120 DisplayRow(0)
8121 } else {
8122 display_map.max_point().row()
8123 };
8124
8125 'outer: for selection in selections {
8126 if selection.id == last_added_selection {
8127 let range = selection.display_range(&display_map).sorted();
8128 debug_assert_eq!(range.start.row(), range.end.row());
8129 let mut row = range.start.row();
8130 let positions =
8131 if let SelectionGoal::HorizontalRange { start, end } = selection.goal {
8132 px(start)..px(end)
8133 } else {
8134 let start_x =
8135 display_map.x_for_display_point(range.start, &text_layout_details);
8136 let end_x =
8137 display_map.x_for_display_point(range.end, &text_layout_details);
8138 start_x.min(end_x)..start_x.max(end_x)
8139 };
8140
8141 while row != end_row {
8142 if above {
8143 row.0 -= 1;
8144 } else {
8145 row.0 += 1;
8146 }
8147
8148 if let Some(new_selection) = self.selections.build_columnar_selection(
8149 &display_map,
8150 row,
8151 &positions,
8152 selection.reversed,
8153 &text_layout_details,
8154 ) {
8155 state.stack.push(new_selection.id);
8156 if above {
8157 new_selections.push(new_selection);
8158 new_selections.push(selection);
8159 } else {
8160 new_selections.push(selection);
8161 new_selections.push(new_selection);
8162 }
8163
8164 continue 'outer;
8165 }
8166 }
8167 }
8168
8169 new_selections.push(selection);
8170 }
8171 } else {
8172 new_selections = selections;
8173 new_selections.retain(|s| s.id != last_added_selection);
8174 state.stack.pop();
8175 }
8176
8177 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8178 s.select(new_selections);
8179 });
8180 if state.stack.len() > 1 {
8181 self.add_selections_state = Some(state);
8182 }
8183 }
8184
8185 pub fn select_next_match_internal(
8186 &mut self,
8187 display_map: &DisplaySnapshot,
8188 replace_newest: bool,
8189 autoscroll: Option<Autoscroll>,
8190 cx: &mut ViewContext<Self>,
8191 ) -> Result<()> {
8192 fn select_next_match_ranges(
8193 this: &mut Editor,
8194 range: Range<usize>,
8195 replace_newest: bool,
8196 auto_scroll: Option<Autoscroll>,
8197 cx: &mut ViewContext<Editor>,
8198 ) {
8199 this.unfold_ranges(&[range.clone()], false, true, cx);
8200 this.change_selections(auto_scroll, cx, |s| {
8201 if replace_newest {
8202 s.delete(s.newest_anchor().id);
8203 }
8204 s.insert_range(range.clone());
8205 });
8206 }
8207
8208 let buffer = &display_map.buffer_snapshot;
8209 let mut selections = self.selections.all::<usize>(cx);
8210 if let Some(mut select_next_state) = self.select_next_state.take() {
8211 let query = &select_next_state.query;
8212 if !select_next_state.done {
8213 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8214 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8215 let mut next_selected_range = None;
8216
8217 let bytes_after_last_selection =
8218 buffer.bytes_in_range(last_selection.end..buffer.len());
8219 let bytes_before_first_selection = buffer.bytes_in_range(0..first_selection.start);
8220 let query_matches = query
8221 .stream_find_iter(bytes_after_last_selection)
8222 .map(|result| (last_selection.end, result))
8223 .chain(
8224 query
8225 .stream_find_iter(bytes_before_first_selection)
8226 .map(|result| (0, result)),
8227 );
8228
8229 for (start_offset, query_match) in query_matches {
8230 let query_match = query_match.unwrap(); // can only fail due to I/O
8231 let offset_range =
8232 start_offset + query_match.start()..start_offset + query_match.end();
8233 let display_range = offset_range.start.to_display_point(display_map)
8234 ..offset_range.end.to_display_point(display_map);
8235
8236 if !select_next_state.wordwise
8237 || (!movement::is_inside_word(display_map, display_range.start)
8238 && !movement::is_inside_word(display_map, display_range.end))
8239 {
8240 // TODO: This is n^2, because we might check all the selections
8241 if !selections
8242 .iter()
8243 .any(|selection| selection.range().overlaps(&offset_range))
8244 {
8245 next_selected_range = Some(offset_range);
8246 break;
8247 }
8248 }
8249 }
8250
8251 if let Some(next_selected_range) = next_selected_range {
8252 select_next_match_ranges(
8253 self,
8254 next_selected_range,
8255 replace_newest,
8256 autoscroll,
8257 cx,
8258 );
8259 } else {
8260 select_next_state.done = true;
8261 }
8262 }
8263
8264 self.select_next_state = Some(select_next_state);
8265 } else {
8266 let mut only_carets = true;
8267 let mut same_text_selected = true;
8268 let mut selected_text = None;
8269
8270 let mut selections_iter = selections.iter().peekable();
8271 while let Some(selection) = selections_iter.next() {
8272 if selection.start != selection.end {
8273 only_carets = false;
8274 }
8275
8276 if same_text_selected {
8277 if selected_text.is_none() {
8278 selected_text =
8279 Some(buffer.text_for_range(selection.range()).collect::<String>());
8280 }
8281
8282 if let Some(next_selection) = selections_iter.peek() {
8283 if next_selection.range().len() == selection.range().len() {
8284 let next_selected_text = buffer
8285 .text_for_range(next_selection.range())
8286 .collect::<String>();
8287 if Some(next_selected_text) != selected_text {
8288 same_text_selected = false;
8289 selected_text = None;
8290 }
8291 } else {
8292 same_text_selected = false;
8293 selected_text = None;
8294 }
8295 }
8296 }
8297 }
8298
8299 if only_carets {
8300 for selection in &mut selections {
8301 let word_range = movement::surrounding_word(
8302 display_map,
8303 selection.start.to_display_point(display_map),
8304 );
8305 selection.start = word_range.start.to_offset(display_map, Bias::Left);
8306 selection.end = word_range.end.to_offset(display_map, Bias::Left);
8307 selection.goal = SelectionGoal::None;
8308 selection.reversed = false;
8309 select_next_match_ranges(
8310 self,
8311 selection.start..selection.end,
8312 replace_newest,
8313 autoscroll,
8314 cx,
8315 );
8316 }
8317
8318 if selections.len() == 1 {
8319 let selection = selections
8320 .last()
8321 .expect("ensured that there's only one selection");
8322 let query = buffer
8323 .text_for_range(selection.start..selection.end)
8324 .collect::<String>();
8325 let is_empty = query.is_empty();
8326 let select_state = SelectNextState {
8327 query: AhoCorasick::new(&[query])?,
8328 wordwise: true,
8329 done: is_empty,
8330 };
8331 self.select_next_state = Some(select_state);
8332 } else {
8333 self.select_next_state = None;
8334 }
8335 } else if let Some(selected_text) = selected_text {
8336 self.select_next_state = Some(SelectNextState {
8337 query: AhoCorasick::new(&[selected_text])?,
8338 wordwise: false,
8339 done: false,
8340 });
8341 self.select_next_match_internal(display_map, replace_newest, autoscroll, cx)?;
8342 }
8343 }
8344 Ok(())
8345 }
8346
8347 pub fn select_all_matches(
8348 &mut self,
8349 _action: &SelectAllMatches,
8350 cx: &mut ViewContext<Self>,
8351 ) -> Result<()> {
8352 self.push_to_selection_history();
8353 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8354
8355 self.select_next_match_internal(&display_map, false, None, cx)?;
8356 let Some(select_next_state) = self.select_next_state.as_mut() else {
8357 return Ok(());
8358 };
8359 if select_next_state.done {
8360 return Ok(());
8361 }
8362
8363 let mut new_selections = self.selections.all::<usize>(cx);
8364
8365 let buffer = &display_map.buffer_snapshot;
8366 let query_matches = select_next_state
8367 .query
8368 .stream_find_iter(buffer.bytes_in_range(0..buffer.len()));
8369
8370 for query_match in query_matches {
8371 let query_match = query_match.unwrap(); // can only fail due to I/O
8372 let offset_range = query_match.start()..query_match.end();
8373 let display_range = offset_range.start.to_display_point(&display_map)
8374 ..offset_range.end.to_display_point(&display_map);
8375
8376 if !select_next_state.wordwise
8377 || (!movement::is_inside_word(&display_map, display_range.start)
8378 && !movement::is_inside_word(&display_map, display_range.end))
8379 {
8380 self.selections.change_with(cx, |selections| {
8381 new_selections.push(Selection {
8382 id: selections.new_selection_id(),
8383 start: offset_range.start,
8384 end: offset_range.end,
8385 reversed: false,
8386 goal: SelectionGoal::None,
8387 });
8388 });
8389 }
8390 }
8391
8392 new_selections.sort_by_key(|selection| selection.start);
8393 let mut ix = 0;
8394 while ix + 1 < new_selections.len() {
8395 let current_selection = &new_selections[ix];
8396 let next_selection = &new_selections[ix + 1];
8397 if current_selection.range().overlaps(&next_selection.range()) {
8398 if current_selection.id < next_selection.id {
8399 new_selections.remove(ix + 1);
8400 } else {
8401 new_selections.remove(ix);
8402 }
8403 } else {
8404 ix += 1;
8405 }
8406 }
8407
8408 select_next_state.done = true;
8409 self.unfold_ranges(
8410 &new_selections
8411 .iter()
8412 .map(|selection| selection.range())
8413 .collect::<Vec<_>>(),
8414 false,
8415 false,
8416 cx,
8417 );
8418 self.change_selections(Some(Autoscroll::fit()), cx, |selections| {
8419 selections.select(new_selections)
8420 });
8421
8422 Ok(())
8423 }
8424
8425 pub fn select_next(&mut self, action: &SelectNext, cx: &mut ViewContext<Self>) -> Result<()> {
8426 self.push_to_selection_history();
8427 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8428 self.select_next_match_internal(
8429 &display_map,
8430 action.replace_newest,
8431 Some(Autoscroll::newest()),
8432 cx,
8433 )?;
8434 Ok(())
8435 }
8436
8437 pub fn select_previous(
8438 &mut self,
8439 action: &SelectPrevious,
8440 cx: &mut ViewContext<Self>,
8441 ) -> Result<()> {
8442 self.push_to_selection_history();
8443 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8444 let buffer = &display_map.buffer_snapshot;
8445 let mut selections = self.selections.all::<usize>(cx);
8446 if let Some(mut select_prev_state) = self.select_prev_state.take() {
8447 let query = &select_prev_state.query;
8448 if !select_prev_state.done {
8449 let first_selection = selections.iter().min_by_key(|s| s.id).unwrap();
8450 let last_selection = selections.iter().max_by_key(|s| s.id).unwrap();
8451 let mut next_selected_range = None;
8452 // When we're iterating matches backwards, the oldest match will actually be the furthest one in the buffer.
8453 let bytes_before_last_selection =
8454 buffer.reversed_bytes_in_range(0..last_selection.start);
8455 let bytes_after_first_selection =
8456 buffer.reversed_bytes_in_range(first_selection.end..buffer.len());
8457 let query_matches = query
8458 .stream_find_iter(bytes_before_last_selection)
8459 .map(|result| (last_selection.start, result))
8460 .chain(
8461 query
8462 .stream_find_iter(bytes_after_first_selection)
8463 .map(|result| (buffer.len(), result)),
8464 );
8465 for (end_offset, query_match) in query_matches {
8466 let query_match = query_match.unwrap(); // can only fail due to I/O
8467 let offset_range =
8468 end_offset - query_match.end()..end_offset - query_match.start();
8469 let display_range = offset_range.start.to_display_point(&display_map)
8470 ..offset_range.end.to_display_point(&display_map);
8471
8472 if !select_prev_state.wordwise
8473 || (!movement::is_inside_word(&display_map, display_range.start)
8474 && !movement::is_inside_word(&display_map, display_range.end))
8475 {
8476 next_selected_range = Some(offset_range);
8477 break;
8478 }
8479 }
8480
8481 if let Some(next_selected_range) = next_selected_range {
8482 self.unfold_ranges(&[next_selected_range.clone()], false, true, cx);
8483 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8484 if action.replace_newest {
8485 s.delete(s.newest_anchor().id);
8486 }
8487 s.insert_range(next_selected_range);
8488 });
8489 } else {
8490 select_prev_state.done = true;
8491 }
8492 }
8493
8494 self.select_prev_state = Some(select_prev_state);
8495 } else {
8496 let mut only_carets = true;
8497 let mut same_text_selected = true;
8498 let mut selected_text = None;
8499
8500 let mut selections_iter = selections.iter().peekable();
8501 while let Some(selection) = selections_iter.next() {
8502 if selection.start != selection.end {
8503 only_carets = false;
8504 }
8505
8506 if same_text_selected {
8507 if selected_text.is_none() {
8508 selected_text =
8509 Some(buffer.text_for_range(selection.range()).collect::<String>());
8510 }
8511
8512 if let Some(next_selection) = selections_iter.peek() {
8513 if next_selection.range().len() == selection.range().len() {
8514 let next_selected_text = buffer
8515 .text_for_range(next_selection.range())
8516 .collect::<String>();
8517 if Some(next_selected_text) != selected_text {
8518 same_text_selected = false;
8519 selected_text = None;
8520 }
8521 } else {
8522 same_text_selected = false;
8523 selected_text = None;
8524 }
8525 }
8526 }
8527 }
8528
8529 if only_carets {
8530 for selection in &mut selections {
8531 let word_range = movement::surrounding_word(
8532 &display_map,
8533 selection.start.to_display_point(&display_map),
8534 );
8535 selection.start = word_range.start.to_offset(&display_map, Bias::Left);
8536 selection.end = word_range.end.to_offset(&display_map, Bias::Left);
8537 selection.goal = SelectionGoal::None;
8538 selection.reversed = false;
8539 }
8540 if selections.len() == 1 {
8541 let selection = selections
8542 .last()
8543 .expect("ensured that there's only one selection");
8544 let query = buffer
8545 .text_for_range(selection.start..selection.end)
8546 .collect::<String>();
8547 let is_empty = query.is_empty();
8548 let select_state = SelectNextState {
8549 query: AhoCorasick::new(&[query.chars().rev().collect::<String>()])?,
8550 wordwise: true,
8551 done: is_empty,
8552 };
8553 self.select_prev_state = Some(select_state);
8554 } else {
8555 self.select_prev_state = None;
8556 }
8557
8558 self.unfold_ranges(
8559 &selections.iter().map(|s| s.range()).collect::<Vec<_>>(),
8560 false,
8561 true,
8562 cx,
8563 );
8564 self.change_selections(Some(Autoscroll::newest()), cx, |s| {
8565 s.select(selections);
8566 });
8567 } else if let Some(selected_text) = selected_text {
8568 self.select_prev_state = Some(SelectNextState {
8569 query: AhoCorasick::new(&[selected_text.chars().rev().collect::<String>()])?,
8570 wordwise: false,
8571 done: false,
8572 });
8573 self.select_previous(action, cx)?;
8574 }
8575 }
8576 Ok(())
8577 }
8578
8579 pub fn toggle_comments(&mut self, action: &ToggleComments, cx: &mut ViewContext<Self>) {
8580 if self.read_only(cx) {
8581 return;
8582 }
8583 let text_layout_details = &self.text_layout_details(cx);
8584 self.transact(cx, |this, cx| {
8585 let mut selections = this.selections.all::<MultiBufferPoint>(cx);
8586 let mut edits = Vec::new();
8587 let mut selection_edit_ranges = Vec::new();
8588 let mut last_toggled_row = None;
8589 let snapshot = this.buffer.read(cx).read(cx);
8590 let empty_str: Arc<str> = Arc::default();
8591 let mut suffixes_inserted = Vec::new();
8592 let ignore_indent = action.ignore_indent;
8593
8594 fn comment_prefix_range(
8595 snapshot: &MultiBufferSnapshot,
8596 row: MultiBufferRow,
8597 comment_prefix: &str,
8598 comment_prefix_whitespace: &str,
8599 ignore_indent: bool,
8600 ) -> Range<Point> {
8601 let indent_size = if ignore_indent {
8602 0
8603 } else {
8604 snapshot.indent_size_for_line(row).len
8605 };
8606
8607 let start = Point::new(row.0, indent_size);
8608
8609 let mut line_bytes = snapshot
8610 .bytes_in_range(start..snapshot.max_point())
8611 .flatten()
8612 .copied();
8613
8614 // If this line currently begins with the line comment prefix, then record
8615 // the range containing the prefix.
8616 if line_bytes
8617 .by_ref()
8618 .take(comment_prefix.len())
8619 .eq(comment_prefix.bytes())
8620 {
8621 // Include any whitespace that matches the comment prefix.
8622 let matching_whitespace_len = line_bytes
8623 .zip(comment_prefix_whitespace.bytes())
8624 .take_while(|(a, b)| a == b)
8625 .count() as u32;
8626 let end = Point::new(
8627 start.row,
8628 start.column + comment_prefix.len() as u32 + matching_whitespace_len,
8629 );
8630 start..end
8631 } else {
8632 start..start
8633 }
8634 }
8635
8636 fn comment_suffix_range(
8637 snapshot: &MultiBufferSnapshot,
8638 row: MultiBufferRow,
8639 comment_suffix: &str,
8640 comment_suffix_has_leading_space: bool,
8641 ) -> Range<Point> {
8642 let end = Point::new(row.0, snapshot.line_len(row));
8643 let suffix_start_column = end.column.saturating_sub(comment_suffix.len() as u32);
8644
8645 let mut line_end_bytes = snapshot
8646 .bytes_in_range(Point::new(end.row, suffix_start_column.saturating_sub(1))..end)
8647 .flatten()
8648 .copied();
8649
8650 let leading_space_len = if suffix_start_column > 0
8651 && line_end_bytes.next() == Some(b' ')
8652 && comment_suffix_has_leading_space
8653 {
8654 1
8655 } else {
8656 0
8657 };
8658
8659 // If this line currently begins with the line comment prefix, then record
8660 // the range containing the prefix.
8661 if line_end_bytes.by_ref().eq(comment_suffix.bytes()) {
8662 let start = Point::new(end.row, suffix_start_column - leading_space_len);
8663 start..end
8664 } else {
8665 end..end
8666 }
8667 }
8668
8669 // TODO: Handle selections that cross excerpts
8670 for selection in &mut selections {
8671 let start_column = snapshot
8672 .indent_size_for_line(MultiBufferRow(selection.start.row))
8673 .len;
8674 let language = if let Some(language) =
8675 snapshot.language_scope_at(Point::new(selection.start.row, start_column))
8676 {
8677 language
8678 } else {
8679 continue;
8680 };
8681
8682 selection_edit_ranges.clear();
8683
8684 // If multiple selections contain a given row, avoid processing that
8685 // row more than once.
8686 let mut start_row = MultiBufferRow(selection.start.row);
8687 if last_toggled_row == Some(start_row) {
8688 start_row = start_row.next_row();
8689 }
8690 let end_row =
8691 if selection.end.row > selection.start.row && selection.end.column == 0 {
8692 MultiBufferRow(selection.end.row - 1)
8693 } else {
8694 MultiBufferRow(selection.end.row)
8695 };
8696 last_toggled_row = Some(end_row);
8697
8698 if start_row > end_row {
8699 continue;
8700 }
8701
8702 // If the language has line comments, toggle those.
8703 let mut full_comment_prefixes = language.line_comment_prefixes().to_vec();
8704
8705 // If ignore_indent is set, trim spaces from the right side of all full_comment_prefixes
8706 if ignore_indent {
8707 full_comment_prefixes = full_comment_prefixes
8708 .into_iter()
8709 .map(|s| Arc::from(s.trim_end()))
8710 .collect();
8711 }
8712
8713 if !full_comment_prefixes.is_empty() {
8714 let first_prefix = full_comment_prefixes
8715 .first()
8716 .expect("prefixes is non-empty");
8717 let prefix_trimmed_lengths = full_comment_prefixes
8718 .iter()
8719 .map(|p| p.trim_end_matches(' ').len())
8720 .collect::<SmallVec<[usize; 4]>>();
8721
8722 let mut all_selection_lines_are_comments = true;
8723
8724 for row in start_row.0..=end_row.0 {
8725 let row = MultiBufferRow(row);
8726 if start_row < end_row && snapshot.is_line_blank(row) {
8727 continue;
8728 }
8729
8730 let prefix_range = full_comment_prefixes
8731 .iter()
8732 .zip(prefix_trimmed_lengths.iter().copied())
8733 .map(|(prefix, trimmed_prefix_len)| {
8734 comment_prefix_range(
8735 snapshot.deref(),
8736 row,
8737 &prefix[..trimmed_prefix_len],
8738 &prefix[trimmed_prefix_len..],
8739 ignore_indent,
8740 )
8741 })
8742 .max_by_key(|range| range.end.column - range.start.column)
8743 .expect("prefixes is non-empty");
8744
8745 if prefix_range.is_empty() {
8746 all_selection_lines_are_comments = false;
8747 }
8748
8749 selection_edit_ranges.push(prefix_range);
8750 }
8751
8752 if all_selection_lines_are_comments {
8753 edits.extend(
8754 selection_edit_ranges
8755 .iter()
8756 .cloned()
8757 .map(|range| (range, empty_str.clone())),
8758 );
8759 } else {
8760 let min_column = selection_edit_ranges
8761 .iter()
8762 .map(|range| range.start.column)
8763 .min()
8764 .unwrap_or(0);
8765 edits.extend(selection_edit_ranges.iter().map(|range| {
8766 let position = Point::new(range.start.row, min_column);
8767 (position..position, first_prefix.clone())
8768 }));
8769 }
8770 } else if let Some((full_comment_prefix, comment_suffix)) =
8771 language.block_comment_delimiters()
8772 {
8773 let comment_prefix = full_comment_prefix.trim_end_matches(' ');
8774 let comment_prefix_whitespace = &full_comment_prefix[comment_prefix.len()..];
8775 let prefix_range = comment_prefix_range(
8776 snapshot.deref(),
8777 start_row,
8778 comment_prefix,
8779 comment_prefix_whitespace,
8780 ignore_indent,
8781 );
8782 let suffix_range = comment_suffix_range(
8783 snapshot.deref(),
8784 end_row,
8785 comment_suffix.trim_start_matches(' '),
8786 comment_suffix.starts_with(' '),
8787 );
8788
8789 if prefix_range.is_empty() || suffix_range.is_empty() {
8790 edits.push((
8791 prefix_range.start..prefix_range.start,
8792 full_comment_prefix.clone(),
8793 ));
8794 edits.push((suffix_range.end..suffix_range.end, comment_suffix.clone()));
8795 suffixes_inserted.push((end_row, comment_suffix.len()));
8796 } else {
8797 edits.push((prefix_range, empty_str.clone()));
8798 edits.push((suffix_range, empty_str.clone()));
8799 }
8800 } else {
8801 continue;
8802 }
8803 }
8804
8805 drop(snapshot);
8806 this.buffer.update(cx, |buffer, cx| {
8807 buffer.edit(edits, None, cx);
8808 });
8809
8810 // Adjust selections so that they end before any comment suffixes that
8811 // were inserted.
8812 let mut suffixes_inserted = suffixes_inserted.into_iter().peekable();
8813 let mut selections = this.selections.all::<Point>(cx);
8814 let snapshot = this.buffer.read(cx).read(cx);
8815 for selection in &mut selections {
8816 while let Some((row, suffix_len)) = suffixes_inserted.peek().copied() {
8817 match row.cmp(&MultiBufferRow(selection.end.row)) {
8818 Ordering::Less => {
8819 suffixes_inserted.next();
8820 continue;
8821 }
8822 Ordering::Greater => break,
8823 Ordering::Equal => {
8824 if selection.end.column == snapshot.line_len(row) {
8825 if selection.is_empty() {
8826 selection.start.column -= suffix_len as u32;
8827 }
8828 selection.end.column -= suffix_len as u32;
8829 }
8830 break;
8831 }
8832 }
8833 }
8834 }
8835
8836 drop(snapshot);
8837 this.change_selections(Some(Autoscroll::fit()), cx, |s| s.select(selections));
8838
8839 let selections = this.selections.all::<Point>(cx);
8840 let selections_on_single_row = selections.windows(2).all(|selections| {
8841 selections[0].start.row == selections[1].start.row
8842 && selections[0].end.row == selections[1].end.row
8843 && selections[0].start.row == selections[0].end.row
8844 });
8845 let selections_selecting = selections
8846 .iter()
8847 .any(|selection| selection.start != selection.end);
8848 let advance_downwards = action.advance_downwards
8849 && selections_on_single_row
8850 && !selections_selecting
8851 && !matches!(this.mode, EditorMode::SingleLine { .. });
8852
8853 if advance_downwards {
8854 let snapshot = this.buffer.read(cx).snapshot(cx);
8855
8856 this.change_selections(Some(Autoscroll::fit()), cx, |s| {
8857 s.move_cursors_with(|display_snapshot, display_point, _| {
8858 let mut point = display_point.to_point(display_snapshot);
8859 point.row += 1;
8860 point = snapshot.clip_point(point, Bias::Left);
8861 let display_point = point.to_display_point(display_snapshot);
8862 let goal = SelectionGoal::HorizontalPosition(
8863 display_snapshot
8864 .x_for_display_point(display_point, text_layout_details)
8865 .into(),
8866 );
8867 (display_point, goal)
8868 })
8869 });
8870 }
8871 });
8872 }
8873
8874 pub fn select_enclosing_symbol(
8875 &mut self,
8876 _: &SelectEnclosingSymbol,
8877 cx: &mut ViewContext<Self>,
8878 ) {
8879 let buffer = self.buffer.read(cx).snapshot(cx);
8880 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8881
8882 fn update_selection(
8883 selection: &Selection<usize>,
8884 buffer_snap: &MultiBufferSnapshot,
8885 ) -> Option<Selection<usize>> {
8886 let cursor = selection.head();
8887 let (_buffer_id, symbols) = buffer_snap.symbols_containing(cursor, None)?;
8888 for symbol in symbols.iter().rev() {
8889 let start = symbol.range.start.to_offset(buffer_snap);
8890 let end = symbol.range.end.to_offset(buffer_snap);
8891 let new_range = start..end;
8892 if start < selection.start || end > selection.end {
8893 return Some(Selection {
8894 id: selection.id,
8895 start: new_range.start,
8896 end: new_range.end,
8897 goal: SelectionGoal::None,
8898 reversed: selection.reversed,
8899 });
8900 }
8901 }
8902 None
8903 }
8904
8905 let mut selected_larger_symbol = false;
8906 let new_selections = old_selections
8907 .iter()
8908 .map(|selection| match update_selection(selection, &buffer) {
8909 Some(new_selection) => {
8910 if new_selection.range() != selection.range() {
8911 selected_larger_symbol = true;
8912 }
8913 new_selection
8914 }
8915 None => selection.clone(),
8916 })
8917 .collect::<Vec<_>>();
8918
8919 if selected_larger_symbol {
8920 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8921 s.select(new_selections);
8922 });
8923 }
8924 }
8925
8926 pub fn select_larger_syntax_node(
8927 &mut self,
8928 _: &SelectLargerSyntaxNode,
8929 cx: &mut ViewContext<Self>,
8930 ) {
8931 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
8932 let buffer = self.buffer.read(cx).snapshot(cx);
8933 let old_selections = self.selections.all::<usize>(cx).into_boxed_slice();
8934
8935 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8936 let mut selected_larger_node = false;
8937 let new_selections = old_selections
8938 .iter()
8939 .map(|selection| {
8940 let old_range = selection.start..selection.end;
8941 let mut new_range = old_range.clone();
8942 let mut new_node = None;
8943 while let Some((node, containing_range)) = buffer.syntax_ancestor(new_range.clone())
8944 {
8945 new_node = Some(node);
8946 new_range = containing_range;
8947 if !display_map.intersects_fold(new_range.start)
8948 && !display_map.intersects_fold(new_range.end)
8949 {
8950 break;
8951 }
8952 }
8953
8954 if let Some(node) = new_node {
8955 // Log the ancestor, to support using this action as a way to explore TreeSitter
8956 // nodes. Parent and grandparent are also logged because this operation will not
8957 // visit nodes that have the same range as their parent.
8958 log::info!("Node: {node:?}");
8959 let parent = node.parent();
8960 log::info!("Parent: {parent:?}");
8961 let grandparent = parent.and_then(|x| x.parent());
8962 log::info!("Grandparent: {grandparent:?}");
8963 }
8964
8965 selected_larger_node |= new_range != old_range;
8966 Selection {
8967 id: selection.id,
8968 start: new_range.start,
8969 end: new_range.end,
8970 goal: SelectionGoal::None,
8971 reversed: selection.reversed,
8972 }
8973 })
8974 .collect::<Vec<_>>();
8975
8976 if selected_larger_node {
8977 stack.push(old_selections);
8978 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8979 s.select(new_selections);
8980 });
8981 }
8982 self.select_larger_syntax_node_stack = stack;
8983 }
8984
8985 pub fn select_smaller_syntax_node(
8986 &mut self,
8987 _: &SelectSmallerSyntaxNode,
8988 cx: &mut ViewContext<Self>,
8989 ) {
8990 let mut stack = mem::take(&mut self.select_larger_syntax_node_stack);
8991 if let Some(selections) = stack.pop() {
8992 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
8993 s.select(selections.to_vec());
8994 });
8995 }
8996 self.select_larger_syntax_node_stack = stack;
8997 }
8998
8999 fn refresh_runnables(&mut self, cx: &mut ViewContext<Self>) -> Task<()> {
9000 if !EditorSettings::get_global(cx).gutter.runnables {
9001 self.clear_tasks();
9002 return Task::ready(());
9003 }
9004 let project = self.project.as_ref().map(Model::downgrade);
9005 cx.spawn(|this, mut cx| async move {
9006 cx.background_executor().timer(UPDATE_DEBOUNCE).await;
9007 let Some(project) = project.and_then(|p| p.upgrade()) else {
9008 return;
9009 };
9010 let Ok(display_snapshot) = this.update(&mut cx, |this, cx| {
9011 this.display_map.update(cx, |map, cx| map.snapshot(cx))
9012 }) else {
9013 return;
9014 };
9015
9016 let hide_runnables = project
9017 .update(&mut cx, |project, cx| {
9018 // Do not display any test indicators in non-dev server remote projects.
9019 project.is_via_collab() && project.ssh_connection_string(cx).is_none()
9020 })
9021 .unwrap_or(true);
9022 if hide_runnables {
9023 return;
9024 }
9025 let new_rows =
9026 cx.background_executor()
9027 .spawn({
9028 let snapshot = display_snapshot.clone();
9029 async move {
9030 Self::fetch_runnable_ranges(&snapshot, Anchor::min()..Anchor::max())
9031 }
9032 })
9033 .await;
9034 let rows = Self::runnable_rows(project, display_snapshot, new_rows, cx.clone());
9035
9036 this.update(&mut cx, |this, _| {
9037 this.clear_tasks();
9038 for (key, value) in rows {
9039 this.insert_tasks(key, value);
9040 }
9041 })
9042 .ok();
9043 })
9044 }
9045 fn fetch_runnable_ranges(
9046 snapshot: &DisplaySnapshot,
9047 range: Range<Anchor>,
9048 ) -> Vec<language::RunnableRange> {
9049 snapshot.buffer_snapshot.runnable_ranges(range).collect()
9050 }
9051
9052 fn runnable_rows(
9053 project: Model<Project>,
9054 snapshot: DisplaySnapshot,
9055 runnable_ranges: Vec<RunnableRange>,
9056 mut cx: AsyncWindowContext,
9057 ) -> Vec<((BufferId, u32), RunnableTasks)> {
9058 runnable_ranges
9059 .into_iter()
9060 .filter_map(|mut runnable| {
9061 let tasks = cx
9062 .update(|cx| Self::templates_with_tags(&project, &mut runnable.runnable, cx))
9063 .ok()?;
9064 if tasks.is_empty() {
9065 return None;
9066 }
9067
9068 let point = runnable.run_range.start.to_point(&snapshot.buffer_snapshot);
9069
9070 let row = snapshot
9071 .buffer_snapshot
9072 .buffer_line_for_row(MultiBufferRow(point.row))?
9073 .1
9074 .start
9075 .row;
9076
9077 let context_range =
9078 BufferOffset(runnable.full_range.start)..BufferOffset(runnable.full_range.end);
9079 Some((
9080 (runnable.buffer_id, row),
9081 RunnableTasks {
9082 templates: tasks,
9083 offset: MultiBufferOffset(runnable.run_range.start),
9084 context_range,
9085 column: point.column,
9086 extra_variables: runnable.extra_captures,
9087 },
9088 ))
9089 })
9090 .collect()
9091 }
9092
9093 fn templates_with_tags(
9094 project: &Model<Project>,
9095 runnable: &mut Runnable,
9096 cx: &WindowContext,
9097 ) -> Vec<(TaskSourceKind, TaskTemplate)> {
9098 let (inventory, worktree_id, file) = project.read_with(cx, |project, cx| {
9099 let (worktree_id, file) = project
9100 .buffer_for_id(runnable.buffer, cx)
9101 .and_then(|buffer| buffer.read(cx).file())
9102 .map(|file| (file.worktree_id(cx), file.clone()))
9103 .unzip();
9104
9105 (
9106 project.task_store().read(cx).task_inventory().cloned(),
9107 worktree_id,
9108 file,
9109 )
9110 });
9111
9112 let tags = mem::take(&mut runnable.tags);
9113 let mut tags: Vec<_> = tags
9114 .into_iter()
9115 .flat_map(|tag| {
9116 let tag = tag.0.clone();
9117 inventory
9118 .as_ref()
9119 .into_iter()
9120 .flat_map(|inventory| {
9121 inventory.read(cx).list_tasks(
9122 file.clone(),
9123 Some(runnable.language.clone()),
9124 worktree_id,
9125 cx,
9126 )
9127 })
9128 .filter(move |(_, template)| {
9129 template.tags.iter().any(|source_tag| source_tag == &tag)
9130 })
9131 })
9132 .sorted_by_key(|(kind, _)| kind.to_owned())
9133 .collect();
9134 if let Some((leading_tag_source, _)) = tags.first() {
9135 // Strongest source wins; if we have worktree tag binding, prefer that to
9136 // global and language bindings;
9137 // if we have a global binding, prefer that to language binding.
9138 let first_mismatch = tags
9139 .iter()
9140 .position(|(tag_source, _)| tag_source != leading_tag_source);
9141 if let Some(index) = first_mismatch {
9142 tags.truncate(index);
9143 }
9144 }
9145
9146 tags
9147 }
9148
9149 pub fn move_to_enclosing_bracket(
9150 &mut self,
9151 _: &MoveToEnclosingBracket,
9152 cx: &mut ViewContext<Self>,
9153 ) {
9154 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9155 s.move_offsets_with(|snapshot, selection| {
9156 let Some(enclosing_bracket_ranges) =
9157 snapshot.enclosing_bracket_ranges(selection.start..selection.end)
9158 else {
9159 return;
9160 };
9161
9162 let mut best_length = usize::MAX;
9163 let mut best_inside = false;
9164 let mut best_in_bracket_range = false;
9165 let mut best_destination = None;
9166 for (open, close) in enclosing_bracket_ranges {
9167 let close = close.to_inclusive();
9168 let length = close.end() - open.start;
9169 let inside = selection.start >= open.end && selection.end <= *close.start();
9170 let in_bracket_range = open.to_inclusive().contains(&selection.head())
9171 || close.contains(&selection.head());
9172
9173 // If best is next to a bracket and current isn't, skip
9174 if !in_bracket_range && best_in_bracket_range {
9175 continue;
9176 }
9177
9178 // Prefer smaller lengths unless best is inside and current isn't
9179 if length > best_length && (best_inside || !inside) {
9180 continue;
9181 }
9182
9183 best_length = length;
9184 best_inside = inside;
9185 best_in_bracket_range = in_bracket_range;
9186 best_destination = Some(
9187 if close.contains(&selection.start) && close.contains(&selection.end) {
9188 if inside {
9189 open.end
9190 } else {
9191 open.start
9192 }
9193 } else if inside {
9194 *close.start()
9195 } else {
9196 *close.end()
9197 },
9198 );
9199 }
9200
9201 if let Some(destination) = best_destination {
9202 selection.collapse_to(destination, SelectionGoal::None);
9203 }
9204 })
9205 });
9206 }
9207
9208 pub fn undo_selection(&mut self, _: &UndoSelection, cx: &mut ViewContext<Self>) {
9209 self.end_selection(cx);
9210 self.selection_history.mode = SelectionHistoryMode::Undoing;
9211 if let Some(entry) = self.selection_history.undo_stack.pop_back() {
9212 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9213 self.select_next_state = entry.select_next_state;
9214 self.select_prev_state = entry.select_prev_state;
9215 self.add_selections_state = entry.add_selections_state;
9216 self.request_autoscroll(Autoscroll::newest(), cx);
9217 }
9218 self.selection_history.mode = SelectionHistoryMode::Normal;
9219 }
9220
9221 pub fn redo_selection(&mut self, _: &RedoSelection, cx: &mut ViewContext<Self>) {
9222 self.end_selection(cx);
9223 self.selection_history.mode = SelectionHistoryMode::Redoing;
9224 if let Some(entry) = self.selection_history.redo_stack.pop_back() {
9225 self.change_selections(None, cx, |s| s.select_anchors(entry.selections.to_vec()));
9226 self.select_next_state = entry.select_next_state;
9227 self.select_prev_state = entry.select_prev_state;
9228 self.add_selections_state = entry.add_selections_state;
9229 self.request_autoscroll(Autoscroll::newest(), cx);
9230 }
9231 self.selection_history.mode = SelectionHistoryMode::Normal;
9232 }
9233
9234 pub fn expand_excerpts(&mut self, action: &ExpandExcerpts, cx: &mut ViewContext<Self>) {
9235 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::UpAndDown, cx)
9236 }
9237
9238 pub fn expand_excerpts_down(
9239 &mut self,
9240 action: &ExpandExcerptsDown,
9241 cx: &mut ViewContext<Self>,
9242 ) {
9243 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Down, cx)
9244 }
9245
9246 pub fn expand_excerpts_up(&mut self, action: &ExpandExcerptsUp, cx: &mut ViewContext<Self>) {
9247 self.expand_excerpts_for_direction(action.lines, ExpandExcerptDirection::Up, cx)
9248 }
9249
9250 pub fn expand_excerpts_for_direction(
9251 &mut self,
9252 lines: u32,
9253 direction: ExpandExcerptDirection,
9254 cx: &mut ViewContext<Self>,
9255 ) {
9256 let selections = self.selections.disjoint_anchors();
9257
9258 let lines = if lines == 0 {
9259 EditorSettings::get_global(cx).expand_excerpt_lines
9260 } else {
9261 lines
9262 };
9263
9264 self.buffer.update(cx, |buffer, cx| {
9265 let snapshot = buffer.snapshot(cx);
9266 let mut excerpt_ids = selections
9267 .iter()
9268 .flat_map(|selection| {
9269 snapshot
9270 .excerpts_for_range(selection.range())
9271 .map(|excerpt| excerpt.id())
9272 })
9273 .collect::<Vec<_>>();
9274 excerpt_ids.sort();
9275 excerpt_ids.dedup();
9276 buffer.expand_excerpts(excerpt_ids, lines, direction, cx)
9277 })
9278 }
9279
9280 pub fn expand_excerpt(
9281 &mut self,
9282 excerpt: ExcerptId,
9283 direction: ExpandExcerptDirection,
9284 cx: &mut ViewContext<Self>,
9285 ) {
9286 let lines = EditorSettings::get_global(cx).expand_excerpt_lines;
9287 self.buffer.update(cx, |buffer, cx| {
9288 buffer.expand_excerpts([excerpt], lines, direction, cx)
9289 })
9290 }
9291
9292 fn go_to_diagnostic(&mut self, _: &GoToDiagnostic, cx: &mut ViewContext<Self>) {
9293 self.go_to_diagnostic_impl(Direction::Next, cx)
9294 }
9295
9296 fn go_to_prev_diagnostic(&mut self, _: &GoToPrevDiagnostic, cx: &mut ViewContext<Self>) {
9297 self.go_to_diagnostic_impl(Direction::Prev, cx)
9298 }
9299
9300 pub fn go_to_diagnostic_impl(&mut self, direction: Direction, cx: &mut ViewContext<Self>) {
9301 let buffer = self.buffer.read(cx).snapshot(cx);
9302 let selection = self.selections.newest::<usize>(cx);
9303
9304 // If there is an active Diagnostic Popover jump to its diagnostic instead.
9305 if direction == Direction::Next {
9306 if let Some(popover) = self.hover_state.diagnostic_popover.as_ref() {
9307 self.activate_diagnostics(popover.group_id(), cx);
9308 if let Some(active_diagnostics) = self.active_diagnostics.as_ref() {
9309 let primary_range_start = active_diagnostics.primary_range.start;
9310 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9311 let mut new_selection = s.newest_anchor().clone();
9312 new_selection.collapse_to(primary_range_start, SelectionGoal::None);
9313 s.select_anchors(vec![new_selection.clone()]);
9314 });
9315 self.refresh_inline_completion(false, true, cx);
9316 }
9317 return;
9318 }
9319 }
9320
9321 let mut active_primary_range = self.active_diagnostics.as_ref().map(|active_diagnostics| {
9322 active_diagnostics
9323 .primary_range
9324 .to_offset(&buffer)
9325 .to_inclusive()
9326 });
9327 let mut search_start = if let Some(active_primary_range) = active_primary_range.as_ref() {
9328 if active_primary_range.contains(&selection.head()) {
9329 *active_primary_range.start()
9330 } else {
9331 selection.head()
9332 }
9333 } else {
9334 selection.head()
9335 };
9336 let snapshot = self.snapshot(cx);
9337 loop {
9338 let diagnostics = if direction == Direction::Prev {
9339 buffer.diagnostics_in_range(0..search_start, true)
9340 } else {
9341 buffer.diagnostics_in_range(search_start..buffer.len(), false)
9342 }
9343 .filter(|diagnostic| !snapshot.intersects_fold(diagnostic.range.start));
9344 let search_start_anchor = buffer.anchor_after(search_start);
9345 let group = diagnostics
9346 // relies on diagnostics_in_range to return diagnostics with the same starting range to
9347 // be sorted in a stable way
9348 // skip until we are at current active diagnostic, if it exists
9349 .skip_while(|entry| {
9350 let is_in_range = match direction {
9351 Direction::Prev => {
9352 entry.range.start.cmp(&search_start_anchor, &buffer).is_ge()
9353 }
9354 Direction::Next => {
9355 entry.range.start.cmp(&search_start_anchor, &buffer).is_le()
9356 }
9357 };
9358 is_in_range
9359 && self
9360 .active_diagnostics
9361 .as_ref()
9362 .is_some_and(|a| a.group_id != entry.diagnostic.group_id)
9363 })
9364 .find_map(|entry| {
9365 if entry.diagnostic.is_primary
9366 && entry.diagnostic.severity <= DiagnosticSeverity::WARNING
9367 && !(entry.range.start == entry.range.end)
9368 // if we match with the active diagnostic, skip it
9369 && Some(entry.diagnostic.group_id)
9370 != self.active_diagnostics.as_ref().map(|d| d.group_id)
9371 {
9372 Some((entry.range, entry.diagnostic.group_id))
9373 } else {
9374 None
9375 }
9376 });
9377
9378 if let Some((primary_range, group_id)) = group {
9379 self.activate_diagnostics(group_id, cx);
9380 let primary_range = primary_range.to_offset(&buffer);
9381 if self.active_diagnostics.is_some() {
9382 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9383 s.select(vec![Selection {
9384 id: selection.id,
9385 start: primary_range.start,
9386 end: primary_range.start,
9387 reversed: false,
9388 goal: SelectionGoal::None,
9389 }]);
9390 });
9391 self.refresh_inline_completion(false, true, cx);
9392 }
9393 break;
9394 } else {
9395 // Cycle around to the start of the buffer, potentially moving back to the start of
9396 // the currently active diagnostic.
9397 active_primary_range.take();
9398 if direction == Direction::Prev {
9399 if search_start == buffer.len() {
9400 break;
9401 } else {
9402 search_start = buffer.len();
9403 }
9404 } else if search_start == 0 {
9405 break;
9406 } else {
9407 search_start = 0;
9408 }
9409 }
9410 }
9411 }
9412
9413 fn go_to_next_hunk(&mut self, _: &GoToHunk, cx: &mut ViewContext<Self>) {
9414 let snapshot = self.snapshot(cx);
9415 let selection = self.selections.newest::<Point>(cx);
9416 self.go_to_hunk_after_position(&snapshot, selection.head(), cx);
9417 }
9418
9419 fn go_to_hunk_after_position(
9420 &mut self,
9421 snapshot: &EditorSnapshot,
9422 position: Point,
9423 cx: &mut ViewContext<Editor>,
9424 ) -> Option<MultiBufferDiffHunk> {
9425 for (ix, position) in [position, Point::zero()].into_iter().enumerate() {
9426 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9427 snapshot,
9428 position,
9429 ix > 0,
9430 snapshot.diff_map.diff_hunks_in_range(
9431 position + Point::new(1, 0)..snapshot.buffer_snapshot.max_point(),
9432 &snapshot.buffer_snapshot,
9433 ),
9434 cx,
9435 ) {
9436 return Some(hunk);
9437 }
9438 }
9439 None
9440 }
9441
9442 fn go_to_prev_hunk(&mut self, _: &GoToPrevHunk, cx: &mut ViewContext<Self>) {
9443 let snapshot = self.snapshot(cx);
9444 let selection = self.selections.newest::<Point>(cx);
9445 self.go_to_hunk_before_position(&snapshot, selection.head(), cx);
9446 }
9447
9448 fn go_to_hunk_before_position(
9449 &mut self,
9450 snapshot: &EditorSnapshot,
9451 position: Point,
9452 cx: &mut ViewContext<Editor>,
9453 ) -> Option<MultiBufferDiffHunk> {
9454 for (ix, position) in [position, snapshot.buffer_snapshot.max_point()]
9455 .into_iter()
9456 .enumerate()
9457 {
9458 if let Some(hunk) = self.go_to_next_hunk_in_direction(
9459 snapshot,
9460 position,
9461 ix > 0,
9462 snapshot
9463 .diff_map
9464 .diff_hunks_in_range_rev(Point::zero()..position, &snapshot.buffer_snapshot),
9465 cx,
9466 ) {
9467 return Some(hunk);
9468 }
9469 }
9470 None
9471 }
9472
9473 fn go_to_next_hunk_in_direction(
9474 &mut self,
9475 snapshot: &DisplaySnapshot,
9476 initial_point: Point,
9477 is_wrapped: bool,
9478 hunks: impl Iterator<Item = MultiBufferDiffHunk>,
9479 cx: &mut ViewContext<Editor>,
9480 ) -> Option<MultiBufferDiffHunk> {
9481 let display_point = initial_point.to_display_point(snapshot);
9482 let mut hunks = hunks
9483 .map(|hunk| (diff_hunk_to_display(&hunk, snapshot), hunk))
9484 .filter(|(display_hunk, _)| {
9485 is_wrapped || !display_hunk.contains_display_row(display_point.row())
9486 })
9487 .dedup();
9488
9489 if let Some((display_hunk, hunk)) = hunks.next() {
9490 self.change_selections(Some(Autoscroll::fit()), cx, |s| {
9491 let row = display_hunk.start_display_row();
9492 let point = DisplayPoint::new(row, 0);
9493 s.select_display_ranges([point..point]);
9494 });
9495
9496 Some(hunk)
9497 } else {
9498 None
9499 }
9500 }
9501
9502 pub fn go_to_definition(
9503 &mut self,
9504 _: &GoToDefinition,
9505 cx: &mut ViewContext<Self>,
9506 ) -> Task<Result<Navigated>> {
9507 let definition = self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, false, cx);
9508 cx.spawn(|editor, mut cx| async move {
9509 if definition.await? == Navigated::Yes {
9510 return Ok(Navigated::Yes);
9511 }
9512 match editor.update(&mut cx, |editor, cx| {
9513 editor.find_all_references(&FindAllReferences, cx)
9514 })? {
9515 Some(references) => references.await,
9516 None => Ok(Navigated::No),
9517 }
9518 })
9519 }
9520
9521 pub fn go_to_declaration(
9522 &mut self,
9523 _: &GoToDeclaration,
9524 cx: &mut ViewContext<Self>,
9525 ) -> Task<Result<Navigated>> {
9526 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, false, cx)
9527 }
9528
9529 pub fn go_to_declaration_split(
9530 &mut self,
9531 _: &GoToDeclaration,
9532 cx: &mut ViewContext<Self>,
9533 ) -> Task<Result<Navigated>> {
9534 self.go_to_definition_of_kind(GotoDefinitionKind::Declaration, true, cx)
9535 }
9536
9537 pub fn go_to_implementation(
9538 &mut self,
9539 _: &GoToImplementation,
9540 cx: &mut ViewContext<Self>,
9541 ) -> Task<Result<Navigated>> {
9542 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, false, cx)
9543 }
9544
9545 pub fn go_to_implementation_split(
9546 &mut self,
9547 _: &GoToImplementationSplit,
9548 cx: &mut ViewContext<Self>,
9549 ) -> Task<Result<Navigated>> {
9550 self.go_to_definition_of_kind(GotoDefinitionKind::Implementation, true, cx)
9551 }
9552
9553 pub fn go_to_type_definition(
9554 &mut self,
9555 _: &GoToTypeDefinition,
9556 cx: &mut ViewContext<Self>,
9557 ) -> Task<Result<Navigated>> {
9558 self.go_to_definition_of_kind(GotoDefinitionKind::Type, false, cx)
9559 }
9560
9561 pub fn go_to_definition_split(
9562 &mut self,
9563 _: &GoToDefinitionSplit,
9564 cx: &mut ViewContext<Self>,
9565 ) -> Task<Result<Navigated>> {
9566 self.go_to_definition_of_kind(GotoDefinitionKind::Symbol, true, cx)
9567 }
9568
9569 pub fn go_to_type_definition_split(
9570 &mut self,
9571 _: &GoToTypeDefinitionSplit,
9572 cx: &mut ViewContext<Self>,
9573 ) -> Task<Result<Navigated>> {
9574 self.go_to_definition_of_kind(GotoDefinitionKind::Type, true, cx)
9575 }
9576
9577 fn go_to_definition_of_kind(
9578 &mut self,
9579 kind: GotoDefinitionKind,
9580 split: bool,
9581 cx: &mut ViewContext<Self>,
9582 ) -> Task<Result<Navigated>> {
9583 let Some(provider) = self.semantics_provider.clone() else {
9584 return Task::ready(Ok(Navigated::No));
9585 };
9586 let head = self.selections.newest::<usize>(cx).head();
9587 let buffer = self.buffer.read(cx);
9588 let (buffer, head) = if let Some(text_anchor) = buffer.text_anchor_for_position(head, cx) {
9589 text_anchor
9590 } else {
9591 return Task::ready(Ok(Navigated::No));
9592 };
9593
9594 let Some(definitions) = provider.definitions(&buffer, head, kind, cx) else {
9595 return Task::ready(Ok(Navigated::No));
9596 };
9597
9598 cx.spawn(|editor, mut cx| async move {
9599 let definitions = definitions.await?;
9600 let navigated = editor
9601 .update(&mut cx, |editor, cx| {
9602 editor.navigate_to_hover_links(
9603 Some(kind),
9604 definitions
9605 .into_iter()
9606 .filter(|location| {
9607 hover_links::exclude_link_to_position(&buffer, &head, location, cx)
9608 })
9609 .map(HoverLink::Text)
9610 .collect::<Vec<_>>(),
9611 split,
9612 cx,
9613 )
9614 })?
9615 .await?;
9616 anyhow::Ok(navigated)
9617 })
9618 }
9619
9620 pub fn open_url(&mut self, _: &OpenUrl, cx: &mut ViewContext<Self>) {
9621 let selection = self.selections.newest_anchor();
9622 let head = selection.head();
9623 let tail = selection.tail();
9624
9625 let Some((buffer, start_position)) =
9626 self.buffer.read(cx).text_anchor_for_position(head, cx)
9627 else {
9628 return;
9629 };
9630
9631 let end_position = if head != tail {
9632 let Some((_, pos)) = self.buffer.read(cx).text_anchor_for_position(tail, cx) else {
9633 return;
9634 };
9635 Some(pos)
9636 } else {
9637 None
9638 };
9639
9640 let url_finder = cx.spawn(|editor, mut cx| async move {
9641 let url = if let Some(end_pos) = end_position {
9642 find_url_from_range(&buffer, start_position..end_pos, cx.clone())
9643 } else {
9644 find_url(&buffer, start_position, cx.clone()).map(|(_, url)| url)
9645 };
9646
9647 if let Some(url) = url {
9648 editor.update(&mut cx, |_, cx| {
9649 cx.open_url(&url);
9650 })
9651 } else {
9652 Ok(())
9653 }
9654 });
9655
9656 url_finder.detach();
9657 }
9658
9659 pub fn open_selected_filename(&mut self, _: &OpenSelectedFilename, cx: &mut ViewContext<Self>) {
9660 let Some(workspace) = self.workspace() else {
9661 return;
9662 };
9663
9664 let position = self.selections.newest_anchor().head();
9665
9666 let Some((buffer, buffer_position)) =
9667 self.buffer.read(cx).text_anchor_for_position(position, cx)
9668 else {
9669 return;
9670 };
9671
9672 let project = self.project.clone();
9673
9674 cx.spawn(|_, mut cx| async move {
9675 let result = find_file(&buffer, project, buffer_position, &mut cx).await;
9676
9677 if let Some((_, path)) = result {
9678 workspace
9679 .update(&mut cx, |workspace, cx| {
9680 workspace.open_resolved_path(path, cx)
9681 })?
9682 .await?;
9683 }
9684 anyhow::Ok(())
9685 })
9686 .detach();
9687 }
9688
9689 pub(crate) fn navigate_to_hover_links(
9690 &mut self,
9691 kind: Option<GotoDefinitionKind>,
9692 mut definitions: Vec<HoverLink>,
9693 split: bool,
9694 cx: &mut ViewContext<Editor>,
9695 ) -> Task<Result<Navigated>> {
9696 // If there is one definition, just open it directly
9697 if definitions.len() == 1 {
9698 let definition = definitions.pop().unwrap();
9699
9700 enum TargetTaskResult {
9701 Location(Option<Location>),
9702 AlreadyNavigated,
9703 }
9704
9705 let target_task = match definition {
9706 HoverLink::Text(link) => {
9707 Task::ready(anyhow::Ok(TargetTaskResult::Location(Some(link.target))))
9708 }
9709 HoverLink::InlayHint(lsp_location, server_id) => {
9710 let computation = self.compute_target_location(lsp_location, server_id, cx);
9711 cx.background_executor().spawn(async move {
9712 let location = computation.await?;
9713 Ok(TargetTaskResult::Location(location))
9714 })
9715 }
9716 HoverLink::Url(url) => {
9717 cx.open_url(&url);
9718 Task::ready(Ok(TargetTaskResult::AlreadyNavigated))
9719 }
9720 HoverLink::File(path) => {
9721 if let Some(workspace) = self.workspace() {
9722 cx.spawn(|_, mut cx| async move {
9723 workspace
9724 .update(&mut cx, |workspace, cx| {
9725 workspace.open_resolved_path(path, cx)
9726 })?
9727 .await
9728 .map(|_| TargetTaskResult::AlreadyNavigated)
9729 })
9730 } else {
9731 Task::ready(Ok(TargetTaskResult::Location(None)))
9732 }
9733 }
9734 };
9735 cx.spawn(|editor, mut cx| async move {
9736 let target = match target_task.await.context("target resolution task")? {
9737 TargetTaskResult::AlreadyNavigated => return Ok(Navigated::Yes),
9738 TargetTaskResult::Location(None) => return Ok(Navigated::No),
9739 TargetTaskResult::Location(Some(target)) => target,
9740 };
9741
9742 editor.update(&mut cx, |editor, cx| {
9743 let Some(workspace) = editor.workspace() else {
9744 return Navigated::No;
9745 };
9746 let pane = workspace.read(cx).active_pane().clone();
9747
9748 let range = target.range.to_offset(target.buffer.read(cx));
9749 let range = editor.range_for_match(&range);
9750
9751 if Some(&target.buffer) == editor.buffer.read(cx).as_singleton().as_ref() {
9752 let buffer = target.buffer.read(cx);
9753 let range = check_multiline_range(buffer, range);
9754 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
9755 s.select_ranges([range]);
9756 });
9757 } else {
9758 cx.window_context().defer(move |cx| {
9759 let target_editor: View<Self> =
9760 workspace.update(cx, |workspace, cx| {
9761 let pane = if split {
9762 workspace.adjacent_pane(cx)
9763 } else {
9764 workspace.active_pane().clone()
9765 };
9766
9767 workspace.open_project_item(
9768 pane,
9769 target.buffer.clone(),
9770 true,
9771 true,
9772 cx,
9773 )
9774 });
9775 target_editor.update(cx, |target_editor, cx| {
9776 // When selecting a definition in a different buffer, disable the nav history
9777 // to avoid creating a history entry at the previous cursor location.
9778 pane.update(cx, |pane, _| pane.disable_history());
9779 let buffer = target.buffer.read(cx);
9780 let range = check_multiline_range(buffer, range);
9781 target_editor.change_selections(
9782 Some(Autoscroll::focused()),
9783 cx,
9784 |s| {
9785 s.select_ranges([range]);
9786 },
9787 );
9788 pane.update(cx, |pane, _| pane.enable_history());
9789 });
9790 });
9791 }
9792 Navigated::Yes
9793 })
9794 })
9795 } else if !definitions.is_empty() {
9796 cx.spawn(|editor, mut cx| async move {
9797 let (title, location_tasks, workspace) = editor
9798 .update(&mut cx, |editor, cx| {
9799 let tab_kind = match kind {
9800 Some(GotoDefinitionKind::Implementation) => "Implementations",
9801 _ => "Definitions",
9802 };
9803 let title = definitions
9804 .iter()
9805 .find_map(|definition| match definition {
9806 HoverLink::Text(link) => link.origin.as_ref().map(|origin| {
9807 let buffer = origin.buffer.read(cx);
9808 format!(
9809 "{} for {}",
9810 tab_kind,
9811 buffer
9812 .text_for_range(origin.range.clone())
9813 .collect::<String>()
9814 )
9815 }),
9816 HoverLink::InlayHint(_, _) => None,
9817 HoverLink::Url(_) => None,
9818 HoverLink::File(_) => None,
9819 })
9820 .unwrap_or(tab_kind.to_string());
9821 let location_tasks = definitions
9822 .into_iter()
9823 .map(|definition| match definition {
9824 HoverLink::Text(link) => Task::ready(Ok(Some(link.target))),
9825 HoverLink::InlayHint(lsp_location, server_id) => {
9826 editor.compute_target_location(lsp_location, server_id, cx)
9827 }
9828 HoverLink::Url(_) => Task::ready(Ok(None)),
9829 HoverLink::File(_) => Task::ready(Ok(None)),
9830 })
9831 .collect::<Vec<_>>();
9832 (title, location_tasks, editor.workspace().clone())
9833 })
9834 .context("location tasks preparation")?;
9835
9836 let locations = future::join_all(location_tasks)
9837 .await
9838 .into_iter()
9839 .filter_map(|location| location.transpose())
9840 .collect::<Result<_>>()
9841 .context("location tasks")?;
9842
9843 let Some(workspace) = workspace else {
9844 return Ok(Navigated::No);
9845 };
9846 let opened = workspace
9847 .update(&mut cx, |workspace, cx| {
9848 Self::open_locations_in_multibuffer(workspace, locations, title, split, cx)
9849 })
9850 .ok();
9851
9852 anyhow::Ok(Navigated::from_bool(opened.is_some()))
9853 })
9854 } else {
9855 Task::ready(Ok(Navigated::No))
9856 }
9857 }
9858
9859 fn compute_target_location(
9860 &self,
9861 lsp_location: lsp::Location,
9862 server_id: LanguageServerId,
9863 cx: &mut ViewContext<Self>,
9864 ) -> Task<anyhow::Result<Option<Location>>> {
9865 let Some(project) = self.project.clone() else {
9866 return Task::ready(Ok(None));
9867 };
9868
9869 cx.spawn(move |editor, mut cx| async move {
9870 let location_task = editor.update(&mut cx, |_, cx| {
9871 project.update(cx, |project, cx| {
9872 let language_server_name = project
9873 .language_server_statuses(cx)
9874 .find(|(id, _)| server_id == *id)
9875 .map(|(_, status)| LanguageServerName::from(status.name.as_str()));
9876 language_server_name.map(|language_server_name| {
9877 project.open_local_buffer_via_lsp(
9878 lsp_location.uri.clone(),
9879 server_id,
9880 language_server_name,
9881 cx,
9882 )
9883 })
9884 })
9885 })?;
9886 let location = match location_task {
9887 Some(task) => Some({
9888 let target_buffer_handle = task.await.context("open local buffer")?;
9889 let range = target_buffer_handle.update(&mut cx, |target_buffer, _| {
9890 let target_start = target_buffer
9891 .clip_point_utf16(point_from_lsp(lsp_location.range.start), Bias::Left);
9892 let target_end = target_buffer
9893 .clip_point_utf16(point_from_lsp(lsp_location.range.end), Bias::Left);
9894 target_buffer.anchor_after(target_start)
9895 ..target_buffer.anchor_before(target_end)
9896 })?;
9897 Location {
9898 buffer: target_buffer_handle,
9899 range,
9900 }
9901 }),
9902 None => None,
9903 };
9904 Ok(location)
9905 })
9906 }
9907
9908 pub fn find_all_references(
9909 &mut self,
9910 _: &FindAllReferences,
9911 cx: &mut ViewContext<Self>,
9912 ) -> Option<Task<Result<Navigated>>> {
9913 let selection = self.selections.newest::<usize>(cx);
9914 let multi_buffer = self.buffer.read(cx);
9915 let head = selection.head();
9916
9917 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
9918 let head_anchor = multi_buffer_snapshot.anchor_at(
9919 head,
9920 if head < selection.tail() {
9921 Bias::Right
9922 } else {
9923 Bias::Left
9924 },
9925 );
9926
9927 match self
9928 .find_all_references_task_sources
9929 .binary_search_by(|anchor| anchor.cmp(&head_anchor, &multi_buffer_snapshot))
9930 {
9931 Ok(_) => {
9932 log::info!(
9933 "Ignoring repeated FindAllReferences invocation with the position of already running task"
9934 );
9935 return None;
9936 }
9937 Err(i) => {
9938 self.find_all_references_task_sources.insert(i, head_anchor);
9939 }
9940 }
9941
9942 let (buffer, head) = multi_buffer.text_anchor_for_position(head, cx)?;
9943 let workspace = self.workspace()?;
9944 let project = workspace.read(cx).project().clone();
9945 let references = project.update(cx, |project, cx| project.references(&buffer, head, cx));
9946 Some(cx.spawn(|editor, mut cx| async move {
9947 let _cleanup = defer({
9948 let mut cx = cx.clone();
9949 move || {
9950 let _ = editor.update(&mut cx, |editor, _| {
9951 if let Ok(i) =
9952 editor
9953 .find_all_references_task_sources
9954 .binary_search_by(|anchor| {
9955 anchor.cmp(&head_anchor, &multi_buffer_snapshot)
9956 })
9957 {
9958 editor.find_all_references_task_sources.remove(i);
9959 }
9960 });
9961 }
9962 });
9963
9964 let locations = references.await?;
9965 if locations.is_empty() {
9966 return anyhow::Ok(Navigated::No);
9967 }
9968
9969 workspace.update(&mut cx, |workspace, cx| {
9970 let title = locations
9971 .first()
9972 .as_ref()
9973 .map(|location| {
9974 let buffer = location.buffer.read(cx);
9975 format!(
9976 "References to `{}`",
9977 buffer
9978 .text_for_range(location.range.clone())
9979 .collect::<String>()
9980 )
9981 })
9982 .unwrap();
9983 Self::open_locations_in_multibuffer(workspace, locations, title, false, cx);
9984 Navigated::Yes
9985 })
9986 }))
9987 }
9988
9989 /// Opens a multibuffer with the given project locations in it
9990 pub fn open_locations_in_multibuffer(
9991 workspace: &mut Workspace,
9992 mut locations: Vec<Location>,
9993 title: String,
9994 split: bool,
9995 cx: &mut ViewContext<Workspace>,
9996 ) {
9997 // If there are multiple definitions, open them in a multibuffer
9998 locations.sort_by_key(|location| location.buffer.read(cx).remote_id());
9999 let mut locations = locations.into_iter().peekable();
10000 let mut ranges_to_highlight = Vec::new();
10001 let capability = workspace.project().read(cx).capability();
10002
10003 let excerpt_buffer = cx.new_model(|cx| {
10004 let mut multibuffer = MultiBuffer::new(capability);
10005 while let Some(location) = locations.next() {
10006 let buffer = location.buffer.read(cx);
10007 let mut ranges_for_buffer = Vec::new();
10008 let range = location.range.to_offset(buffer);
10009 ranges_for_buffer.push(range.clone());
10010
10011 while let Some(next_location) = locations.peek() {
10012 if next_location.buffer == location.buffer {
10013 ranges_for_buffer.push(next_location.range.to_offset(buffer));
10014 locations.next();
10015 } else {
10016 break;
10017 }
10018 }
10019
10020 ranges_for_buffer.sort_by_key(|range| (range.start, Reverse(range.end)));
10021 ranges_to_highlight.extend(multibuffer.push_excerpts_with_context_lines(
10022 location.buffer.clone(),
10023 ranges_for_buffer,
10024 DEFAULT_MULTIBUFFER_CONTEXT,
10025 cx,
10026 ))
10027 }
10028
10029 multibuffer.with_title(title)
10030 });
10031
10032 let editor = cx.new_view(|cx| {
10033 Editor::for_multibuffer(excerpt_buffer, Some(workspace.project().clone()), true, cx)
10034 });
10035 editor.update(cx, |editor, cx| {
10036 if let Some(first_range) = ranges_to_highlight.first() {
10037 editor.change_selections(None, cx, |selections| {
10038 selections.clear_disjoint();
10039 selections.select_anchor_ranges(std::iter::once(first_range.clone()));
10040 });
10041 }
10042 editor.highlight_background::<Self>(
10043 &ranges_to_highlight,
10044 |theme| theme.editor_highlighted_line_background,
10045 cx,
10046 );
10047 editor.register_buffers_with_language_servers(cx);
10048 });
10049
10050 let item = Box::new(editor);
10051 let item_id = item.item_id();
10052
10053 if split {
10054 workspace.split_item(SplitDirection::Right, item.clone(), cx);
10055 } else {
10056 let destination_index = workspace.active_pane().update(cx, |pane, cx| {
10057 if PreviewTabsSettings::get_global(cx).enable_preview_from_code_navigation {
10058 pane.close_current_preview_item(cx)
10059 } else {
10060 None
10061 }
10062 });
10063 workspace.add_item_to_active_pane(item.clone(), destination_index, true, cx);
10064 }
10065 workspace.active_pane().update(cx, |pane, cx| {
10066 pane.set_preview_item_id(Some(item_id), cx);
10067 });
10068 }
10069
10070 pub fn rename(&mut self, _: &Rename, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10071 use language::ToOffset as _;
10072
10073 let provider = self.semantics_provider.clone()?;
10074 let selection = self.selections.newest_anchor().clone();
10075 let (cursor_buffer, cursor_buffer_position) = self
10076 .buffer
10077 .read(cx)
10078 .text_anchor_for_position(selection.head(), cx)?;
10079 let (tail_buffer, cursor_buffer_position_end) = self
10080 .buffer
10081 .read(cx)
10082 .text_anchor_for_position(selection.tail(), cx)?;
10083 if tail_buffer != cursor_buffer {
10084 return None;
10085 }
10086
10087 let snapshot = cursor_buffer.read(cx).snapshot();
10088 let cursor_buffer_offset = cursor_buffer_position.to_offset(&snapshot);
10089 let cursor_buffer_offset_end = cursor_buffer_position_end.to_offset(&snapshot);
10090 let prepare_rename = provider
10091 .range_for_rename(&cursor_buffer, cursor_buffer_position, cx)
10092 .unwrap_or_else(|| Task::ready(Ok(None)));
10093 drop(snapshot);
10094
10095 Some(cx.spawn(|this, mut cx| async move {
10096 let rename_range = if let Some(range) = prepare_rename.await? {
10097 Some(range)
10098 } else {
10099 this.update(&mut cx, |this, cx| {
10100 let buffer = this.buffer.read(cx).snapshot(cx);
10101 let mut buffer_highlights = this
10102 .document_highlights_for_position(selection.head(), &buffer)
10103 .filter(|highlight| {
10104 highlight.start.excerpt_id == selection.head().excerpt_id
10105 && highlight.end.excerpt_id == selection.head().excerpt_id
10106 });
10107 buffer_highlights
10108 .next()
10109 .map(|highlight| highlight.start.text_anchor..highlight.end.text_anchor)
10110 })?
10111 };
10112 if let Some(rename_range) = rename_range {
10113 this.update(&mut cx, |this, cx| {
10114 let snapshot = cursor_buffer.read(cx).snapshot();
10115 let rename_buffer_range = rename_range.to_offset(&snapshot);
10116 let cursor_offset_in_rename_range =
10117 cursor_buffer_offset.saturating_sub(rename_buffer_range.start);
10118 let cursor_offset_in_rename_range_end =
10119 cursor_buffer_offset_end.saturating_sub(rename_buffer_range.start);
10120
10121 this.take_rename(false, cx);
10122 let buffer = this.buffer.read(cx).read(cx);
10123 let cursor_offset = selection.head().to_offset(&buffer);
10124 let rename_start = cursor_offset.saturating_sub(cursor_offset_in_rename_range);
10125 let rename_end = rename_start + rename_buffer_range.len();
10126 let range = buffer.anchor_before(rename_start)..buffer.anchor_after(rename_end);
10127 let mut old_highlight_id = None;
10128 let old_name: Arc<str> = buffer
10129 .chunks(rename_start..rename_end, true)
10130 .map(|chunk| {
10131 if old_highlight_id.is_none() {
10132 old_highlight_id = chunk.syntax_highlight_id;
10133 }
10134 chunk.text
10135 })
10136 .collect::<String>()
10137 .into();
10138
10139 drop(buffer);
10140
10141 // Position the selection in the rename editor so that it matches the current selection.
10142 this.show_local_selections = false;
10143 let rename_editor = cx.new_view(|cx| {
10144 let mut editor = Editor::single_line(cx);
10145 editor.buffer.update(cx, |buffer, cx| {
10146 buffer.edit([(0..0, old_name.clone())], None, cx)
10147 });
10148 let rename_selection_range = match cursor_offset_in_rename_range
10149 .cmp(&cursor_offset_in_rename_range_end)
10150 {
10151 Ordering::Equal => {
10152 editor.select_all(&SelectAll, cx);
10153 return editor;
10154 }
10155 Ordering::Less => {
10156 cursor_offset_in_rename_range..cursor_offset_in_rename_range_end
10157 }
10158 Ordering::Greater => {
10159 cursor_offset_in_rename_range_end..cursor_offset_in_rename_range
10160 }
10161 };
10162 if rename_selection_range.end > old_name.len() {
10163 editor.select_all(&SelectAll, cx);
10164 } else {
10165 editor.change_selections(Some(Autoscroll::fit()), cx, |s| {
10166 s.select_ranges([rename_selection_range]);
10167 });
10168 }
10169 editor
10170 });
10171 cx.subscribe(&rename_editor, |_, _, e: &EditorEvent, cx| {
10172 if e == &EditorEvent::Focused {
10173 cx.emit(EditorEvent::FocusedIn)
10174 }
10175 })
10176 .detach();
10177
10178 let write_highlights =
10179 this.clear_background_highlights::<DocumentHighlightWrite>(cx);
10180 let read_highlights =
10181 this.clear_background_highlights::<DocumentHighlightRead>(cx);
10182 let ranges = write_highlights
10183 .iter()
10184 .flat_map(|(_, ranges)| ranges.iter())
10185 .chain(read_highlights.iter().flat_map(|(_, ranges)| ranges.iter()))
10186 .cloned()
10187 .collect();
10188
10189 this.highlight_text::<Rename>(
10190 ranges,
10191 HighlightStyle {
10192 fade_out: Some(0.6),
10193 ..Default::default()
10194 },
10195 cx,
10196 );
10197 let rename_focus_handle = rename_editor.focus_handle(cx);
10198 cx.focus(&rename_focus_handle);
10199 let block_id = this.insert_blocks(
10200 [BlockProperties {
10201 style: BlockStyle::Flex,
10202 placement: BlockPlacement::Below(range.start),
10203 height: 1,
10204 render: Arc::new({
10205 let rename_editor = rename_editor.clone();
10206 move |cx: &mut BlockContext| {
10207 let mut text_style = cx.editor_style.text.clone();
10208 if let Some(highlight_style) = old_highlight_id
10209 .and_then(|h| h.style(&cx.editor_style.syntax))
10210 {
10211 text_style = text_style.highlight(highlight_style);
10212 }
10213 div()
10214 .block_mouse_down()
10215 .pl(cx.anchor_x)
10216 .child(EditorElement::new(
10217 &rename_editor,
10218 EditorStyle {
10219 background: cx.theme().system().transparent,
10220 local_player: cx.editor_style.local_player,
10221 text: text_style,
10222 scrollbar_width: cx.editor_style.scrollbar_width,
10223 syntax: cx.editor_style.syntax.clone(),
10224 status: cx.editor_style.status.clone(),
10225 inlay_hints_style: HighlightStyle {
10226 font_weight: Some(FontWeight::BOLD),
10227 ..make_inlay_hints_style(cx)
10228 },
10229 inline_completion_styles: make_suggestion_styles(
10230 cx,
10231 ),
10232 ..EditorStyle::default()
10233 },
10234 ))
10235 .into_any_element()
10236 }
10237 }),
10238 priority: 0,
10239 }],
10240 Some(Autoscroll::fit()),
10241 cx,
10242 )[0];
10243 this.pending_rename = Some(RenameState {
10244 range,
10245 old_name,
10246 editor: rename_editor,
10247 block_id,
10248 });
10249 })?;
10250 }
10251
10252 Ok(())
10253 }))
10254 }
10255
10256 pub fn confirm_rename(
10257 &mut self,
10258 _: &ConfirmRename,
10259 cx: &mut ViewContext<Self>,
10260 ) -> Option<Task<Result<()>>> {
10261 let rename = self.take_rename(false, cx)?;
10262 let workspace = self.workspace()?.downgrade();
10263 let (buffer, start) = self
10264 .buffer
10265 .read(cx)
10266 .text_anchor_for_position(rename.range.start, cx)?;
10267 let (end_buffer, _) = self
10268 .buffer
10269 .read(cx)
10270 .text_anchor_for_position(rename.range.end, cx)?;
10271 if buffer != end_buffer {
10272 return None;
10273 }
10274
10275 let old_name = rename.old_name;
10276 let new_name = rename.editor.read(cx).text(cx);
10277
10278 let rename = self.semantics_provider.as_ref()?.perform_rename(
10279 &buffer,
10280 start,
10281 new_name.clone(),
10282 cx,
10283 )?;
10284
10285 Some(cx.spawn(|editor, mut cx| async move {
10286 let project_transaction = rename.await?;
10287 Self::open_project_transaction(
10288 &editor,
10289 workspace,
10290 project_transaction,
10291 format!("Rename: {} → {}", old_name, new_name),
10292 cx.clone(),
10293 )
10294 .await?;
10295
10296 editor.update(&mut cx, |editor, cx| {
10297 editor.refresh_document_highlights(cx);
10298 })?;
10299 Ok(())
10300 }))
10301 }
10302
10303 fn take_rename(
10304 &mut self,
10305 moving_cursor: bool,
10306 cx: &mut ViewContext<Self>,
10307 ) -> Option<RenameState> {
10308 let rename = self.pending_rename.take()?;
10309 if rename.editor.focus_handle(cx).is_focused(cx) {
10310 cx.focus(&self.focus_handle);
10311 }
10312
10313 self.remove_blocks(
10314 [rename.block_id].into_iter().collect(),
10315 Some(Autoscroll::fit()),
10316 cx,
10317 );
10318 self.clear_highlights::<Rename>(cx);
10319 self.show_local_selections = true;
10320
10321 if moving_cursor {
10322 let cursor_in_rename_editor = rename.editor.update(cx, |editor, cx| {
10323 editor.selections.newest::<usize>(cx).head()
10324 });
10325
10326 // Update the selection to match the position of the selection inside
10327 // the rename editor.
10328 let snapshot = self.buffer.read(cx).read(cx);
10329 let rename_range = rename.range.to_offset(&snapshot);
10330 let cursor_in_editor = snapshot
10331 .clip_offset(rename_range.start + cursor_in_rename_editor, Bias::Left)
10332 .min(rename_range.end);
10333 drop(snapshot);
10334
10335 self.change_selections(None, cx, |s| {
10336 s.select_ranges(vec![cursor_in_editor..cursor_in_editor])
10337 });
10338 } else {
10339 self.refresh_document_highlights(cx);
10340 }
10341
10342 Some(rename)
10343 }
10344
10345 pub fn pending_rename(&self) -> Option<&RenameState> {
10346 self.pending_rename.as_ref()
10347 }
10348
10349 fn format(&mut self, _: &Format, cx: &mut ViewContext<Self>) -> Option<Task<Result<()>>> {
10350 let project = match &self.project {
10351 Some(project) => project.clone(),
10352 None => return None,
10353 };
10354
10355 Some(self.perform_format(project, FormatTrigger::Manual, FormatTarget::Buffers, cx))
10356 }
10357
10358 fn format_selections(
10359 &mut self,
10360 _: &FormatSelections,
10361 cx: &mut ViewContext<Self>,
10362 ) -> Option<Task<Result<()>>> {
10363 let project = match &self.project {
10364 Some(project) => project.clone(),
10365 None => return None,
10366 };
10367
10368 let ranges = self
10369 .selections
10370 .all_adjusted(cx)
10371 .into_iter()
10372 .map(|selection| selection.range())
10373 .collect_vec();
10374
10375 Some(self.perform_format(
10376 project,
10377 FormatTrigger::Manual,
10378 FormatTarget::Ranges(ranges),
10379 cx,
10380 ))
10381 }
10382
10383 fn perform_format(
10384 &mut self,
10385 project: Model<Project>,
10386 trigger: FormatTrigger,
10387 target: FormatTarget,
10388 cx: &mut ViewContext<Self>,
10389 ) -> Task<Result<()>> {
10390 let buffer = self.buffer.clone();
10391 let (buffers, target) = match target {
10392 FormatTarget::Buffers => {
10393 let mut buffers = buffer.read(cx).all_buffers();
10394 if trigger == FormatTrigger::Save {
10395 buffers.retain(|buffer| buffer.read(cx).is_dirty());
10396 }
10397 (buffers, LspFormatTarget::Buffers)
10398 }
10399 FormatTarget::Ranges(selection_ranges) => {
10400 let multi_buffer = buffer.read(cx);
10401 let snapshot = multi_buffer.read(cx);
10402 let mut buffers = HashSet::default();
10403 let mut buffer_id_to_ranges: BTreeMap<BufferId, Vec<Range<text::Anchor>>> =
10404 BTreeMap::new();
10405 for selection_range in selection_ranges {
10406 for (excerpt, buffer_range) in snapshot.range_to_buffer_ranges(selection_range)
10407 {
10408 let buffer_id = excerpt.buffer_id();
10409 let start = excerpt.buffer().anchor_before(buffer_range.start);
10410 let end = excerpt.buffer().anchor_after(buffer_range.end);
10411 buffers.insert(multi_buffer.buffer(buffer_id).unwrap());
10412 buffer_id_to_ranges
10413 .entry(buffer_id)
10414 .and_modify(|buffer_ranges| buffer_ranges.push(start..end))
10415 .or_insert_with(|| vec![start..end]);
10416 }
10417 }
10418 (buffers, LspFormatTarget::Ranges(buffer_id_to_ranges))
10419 }
10420 };
10421
10422 let mut timeout = cx.background_executor().timer(FORMAT_TIMEOUT).fuse();
10423 let format = project.update(cx, |project, cx| {
10424 project.format(buffers, target, true, trigger, cx)
10425 });
10426
10427 cx.spawn(|_, mut cx| async move {
10428 let transaction = futures::select_biased! {
10429 () = timeout => {
10430 log::warn!("timed out waiting for formatting");
10431 None
10432 }
10433 transaction = format.log_err().fuse() => transaction,
10434 };
10435
10436 buffer
10437 .update(&mut cx, |buffer, cx| {
10438 if let Some(transaction) = transaction {
10439 if !buffer.is_singleton() {
10440 buffer.push_transaction(&transaction.0, cx);
10441 }
10442 }
10443
10444 cx.notify();
10445 })
10446 .ok();
10447
10448 Ok(())
10449 })
10450 }
10451
10452 fn restart_language_server(&mut self, _: &RestartLanguageServer, cx: &mut ViewContext<Self>) {
10453 if let Some(project) = self.project.clone() {
10454 self.buffer.update(cx, |multi_buffer, cx| {
10455 project.update(cx, |project, cx| {
10456 project.restart_language_servers_for_buffers(multi_buffer.all_buffers(), cx);
10457 });
10458 })
10459 }
10460 }
10461
10462 fn cancel_language_server_work(
10463 &mut self,
10464 _: &actions::CancelLanguageServerWork,
10465 cx: &mut ViewContext<Self>,
10466 ) {
10467 if let Some(project) = self.project.clone() {
10468 self.buffer.update(cx, |multi_buffer, cx| {
10469 project.update(cx, |project, cx| {
10470 project.cancel_language_server_work_for_buffers(multi_buffer.all_buffers(), cx);
10471 });
10472 })
10473 }
10474 }
10475
10476 fn show_character_palette(&mut self, _: &ShowCharacterPalette, cx: &mut ViewContext<Self>) {
10477 cx.show_character_palette();
10478 }
10479
10480 fn refresh_active_diagnostics(&mut self, cx: &mut ViewContext<Editor>) {
10481 if let Some(active_diagnostics) = self.active_diagnostics.as_mut() {
10482 let buffer = self.buffer.read(cx).snapshot(cx);
10483 let primary_range_start = active_diagnostics.primary_range.start.to_offset(&buffer);
10484 let is_valid = buffer
10485 .diagnostics_in_range(active_diagnostics.primary_range.clone(), false)
10486 .any(|entry| {
10487 let range = entry.range.to_offset(&buffer);
10488 entry.diagnostic.is_primary
10489 && !range.is_empty()
10490 && range.start == primary_range_start
10491 && entry.diagnostic.message == active_diagnostics.primary_message
10492 });
10493
10494 if is_valid != active_diagnostics.is_valid {
10495 active_diagnostics.is_valid = is_valid;
10496 let mut new_styles = HashMap::default();
10497 for (block_id, diagnostic) in &active_diagnostics.blocks {
10498 new_styles.insert(
10499 *block_id,
10500 diagnostic_block_renderer(diagnostic.clone(), None, true, is_valid),
10501 );
10502 }
10503 self.display_map.update(cx, |display_map, _cx| {
10504 display_map.replace_blocks(new_styles)
10505 });
10506 }
10507 }
10508 }
10509
10510 fn activate_diagnostics(&mut self, group_id: usize, cx: &mut ViewContext<Self>) {
10511 self.dismiss_diagnostics(cx);
10512 let snapshot = self.snapshot(cx);
10513 self.active_diagnostics = self.display_map.update(cx, |display_map, cx| {
10514 let buffer = self.buffer.read(cx).snapshot(cx);
10515
10516 let mut primary_range = None;
10517 let mut primary_message = None;
10518 let mut group_end = Point::zero();
10519 let diagnostic_group = buffer
10520 .diagnostic_group(group_id)
10521 .filter_map(|entry| {
10522 let start = entry.range.start.to_point(&buffer);
10523 let end = entry.range.end.to_point(&buffer);
10524 if snapshot.is_line_folded(MultiBufferRow(start.row))
10525 && (start.row == end.row
10526 || snapshot.is_line_folded(MultiBufferRow(end.row)))
10527 {
10528 return None;
10529 }
10530 if end > group_end {
10531 group_end = end;
10532 }
10533 if entry.diagnostic.is_primary {
10534 primary_range = Some(entry.range.clone());
10535 primary_message = Some(entry.diagnostic.message.clone());
10536 }
10537 Some(entry)
10538 })
10539 .collect::<Vec<_>>();
10540 let primary_range = primary_range?;
10541 let primary_message = primary_message?;
10542
10543 let blocks = display_map
10544 .insert_blocks(
10545 diagnostic_group.iter().map(|entry| {
10546 let diagnostic = entry.diagnostic.clone();
10547 let message_height = diagnostic.message.matches('\n').count() as u32 + 1;
10548 BlockProperties {
10549 style: BlockStyle::Fixed,
10550 placement: BlockPlacement::Below(
10551 buffer.anchor_after(entry.range.start),
10552 ),
10553 height: message_height,
10554 render: diagnostic_block_renderer(diagnostic, None, true, true),
10555 priority: 0,
10556 }
10557 }),
10558 cx,
10559 )
10560 .into_iter()
10561 .zip(diagnostic_group.into_iter().map(|entry| entry.diagnostic))
10562 .collect();
10563
10564 Some(ActiveDiagnosticGroup {
10565 primary_range,
10566 primary_message,
10567 group_id,
10568 blocks,
10569 is_valid: true,
10570 })
10571 });
10572 }
10573
10574 fn dismiss_diagnostics(&mut self, cx: &mut ViewContext<Self>) {
10575 if let Some(active_diagnostic_group) = self.active_diagnostics.take() {
10576 self.display_map.update(cx, |display_map, cx| {
10577 display_map.remove_blocks(active_diagnostic_group.blocks.into_keys().collect(), cx);
10578 });
10579 cx.notify();
10580 }
10581 }
10582
10583 pub fn set_selections_from_remote(
10584 &mut self,
10585 selections: Vec<Selection<Anchor>>,
10586 pending_selection: Option<Selection<Anchor>>,
10587 cx: &mut ViewContext<Self>,
10588 ) {
10589 let old_cursor_position = self.selections.newest_anchor().head();
10590 self.selections.change_with(cx, |s| {
10591 s.select_anchors(selections);
10592 if let Some(pending_selection) = pending_selection {
10593 s.set_pending(pending_selection, SelectMode::Character);
10594 } else {
10595 s.clear_pending();
10596 }
10597 });
10598 self.selections_did_change(false, &old_cursor_position, true, cx);
10599 }
10600
10601 fn push_to_selection_history(&mut self) {
10602 self.selection_history.push(SelectionHistoryEntry {
10603 selections: self.selections.disjoint_anchors(),
10604 select_next_state: self.select_next_state.clone(),
10605 select_prev_state: self.select_prev_state.clone(),
10606 add_selections_state: self.add_selections_state.clone(),
10607 });
10608 }
10609
10610 pub fn transact(
10611 &mut self,
10612 cx: &mut ViewContext<Self>,
10613 update: impl FnOnce(&mut Self, &mut ViewContext<Self>),
10614 ) -> Option<TransactionId> {
10615 self.start_transaction_at(Instant::now(), cx);
10616 update(self, cx);
10617 self.end_transaction_at(Instant::now(), cx)
10618 }
10619
10620 pub fn start_transaction_at(&mut self, now: Instant, cx: &mut ViewContext<Self>) {
10621 self.end_selection(cx);
10622 if let Some(tx_id) = self
10623 .buffer
10624 .update(cx, |buffer, cx| buffer.start_transaction_at(now, cx))
10625 {
10626 self.selection_history
10627 .insert_transaction(tx_id, self.selections.disjoint_anchors());
10628 cx.emit(EditorEvent::TransactionBegun {
10629 transaction_id: tx_id,
10630 })
10631 }
10632 }
10633
10634 pub fn end_transaction_at(
10635 &mut self,
10636 now: Instant,
10637 cx: &mut ViewContext<Self>,
10638 ) -> Option<TransactionId> {
10639 if let Some(transaction_id) = self
10640 .buffer
10641 .update(cx, |buffer, cx| buffer.end_transaction_at(now, cx))
10642 {
10643 if let Some((_, end_selections)) =
10644 self.selection_history.transaction_mut(transaction_id)
10645 {
10646 *end_selections = Some(self.selections.disjoint_anchors());
10647 } else {
10648 log::error!("unexpectedly ended a transaction that wasn't started by this editor");
10649 }
10650
10651 cx.emit(EditorEvent::Edited { transaction_id });
10652 Some(transaction_id)
10653 } else {
10654 None
10655 }
10656 }
10657
10658 pub fn set_mark(&mut self, _: &actions::SetMark, cx: &mut ViewContext<Self>) {
10659 if self.selection_mark_mode {
10660 self.change_selections(None, cx, |s| {
10661 s.move_with(|_, sel| {
10662 sel.collapse_to(sel.head(), SelectionGoal::None);
10663 });
10664 })
10665 }
10666 self.selection_mark_mode = true;
10667 cx.notify();
10668 }
10669
10670 pub fn swap_selection_ends(
10671 &mut self,
10672 _: &actions::SwapSelectionEnds,
10673 cx: &mut ViewContext<Self>,
10674 ) {
10675 self.change_selections(None, cx, |s| {
10676 s.move_with(|_, sel| {
10677 if sel.start != sel.end {
10678 sel.reversed = !sel.reversed
10679 }
10680 });
10681 });
10682 self.request_autoscroll(Autoscroll::newest(), cx);
10683 cx.notify();
10684 }
10685
10686 pub fn toggle_fold(&mut self, _: &actions::ToggleFold, cx: &mut ViewContext<Self>) {
10687 if self.is_singleton(cx) {
10688 let selection = self.selections.newest::<Point>(cx);
10689
10690 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10691 let range = if selection.is_empty() {
10692 let point = selection.head().to_display_point(&display_map);
10693 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10694 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10695 .to_point(&display_map);
10696 start..end
10697 } else {
10698 selection.range()
10699 };
10700 if display_map.folds_in_range(range).next().is_some() {
10701 self.unfold_lines(&Default::default(), cx)
10702 } else {
10703 self.fold(&Default::default(), cx)
10704 }
10705 } else {
10706 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10707 let mut toggled_buffers = HashSet::default();
10708 for (_, buffer_snapshot, _) in
10709 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10710 {
10711 let buffer_id = buffer_snapshot.remote_id();
10712 if toggled_buffers.insert(buffer_id) {
10713 if self.buffer_folded(buffer_id, cx) {
10714 self.unfold_buffer(buffer_id, cx);
10715 } else {
10716 self.fold_buffer(buffer_id, cx);
10717 }
10718 }
10719 }
10720 }
10721 }
10722
10723 pub fn toggle_fold_recursive(
10724 &mut self,
10725 _: &actions::ToggleFoldRecursive,
10726 cx: &mut ViewContext<Self>,
10727 ) {
10728 let selection = self.selections.newest::<Point>(cx);
10729
10730 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10731 let range = if selection.is_empty() {
10732 let point = selection.head().to_display_point(&display_map);
10733 let start = DisplayPoint::new(point.row(), 0).to_point(&display_map);
10734 let end = DisplayPoint::new(point.row(), display_map.line_len(point.row()))
10735 .to_point(&display_map);
10736 start..end
10737 } else {
10738 selection.range()
10739 };
10740 if display_map.folds_in_range(range).next().is_some() {
10741 self.unfold_recursive(&Default::default(), cx)
10742 } else {
10743 self.fold_recursive(&Default::default(), cx)
10744 }
10745 }
10746
10747 pub fn fold(&mut self, _: &actions::Fold, cx: &mut ViewContext<Self>) {
10748 if self.is_singleton(cx) {
10749 let mut to_fold = Vec::new();
10750 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10751 let selections = self.selections.all_adjusted(cx);
10752
10753 for selection in selections {
10754 let range = selection.range().sorted();
10755 let buffer_start_row = range.start.row;
10756
10757 if range.start.row != range.end.row {
10758 let mut found = false;
10759 let mut row = range.start.row;
10760 while row <= range.end.row {
10761 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row))
10762 {
10763 found = true;
10764 row = crease.range().end.row + 1;
10765 to_fold.push(crease);
10766 } else {
10767 row += 1
10768 }
10769 }
10770 if found {
10771 continue;
10772 }
10773 }
10774
10775 for row in (0..=range.start.row).rev() {
10776 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10777 if crease.range().end.row >= buffer_start_row {
10778 to_fold.push(crease);
10779 if row <= range.start.row {
10780 break;
10781 }
10782 }
10783 }
10784 }
10785 }
10786
10787 self.fold_creases(to_fold, true, cx);
10788 } else {
10789 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10790 let mut folded_buffers = HashSet::default();
10791 for (_, buffer_snapshot, _) in
10792 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10793 {
10794 let buffer_id = buffer_snapshot.remote_id();
10795 if folded_buffers.insert(buffer_id) {
10796 self.fold_buffer(buffer_id, cx);
10797 }
10798 }
10799 }
10800 }
10801
10802 fn fold_at_level(&mut self, fold_at: &FoldAtLevel, cx: &mut ViewContext<Self>) {
10803 if !self.buffer.read(cx).is_singleton() {
10804 return;
10805 }
10806
10807 let fold_at_level = fold_at.level;
10808 let snapshot = self.buffer.read(cx).snapshot(cx);
10809 let mut to_fold = Vec::new();
10810 let mut stack = vec![(0, snapshot.max_row().0, 1)];
10811
10812 while let Some((mut start_row, end_row, current_level)) = stack.pop() {
10813 while start_row < end_row {
10814 match self
10815 .snapshot(cx)
10816 .crease_for_buffer_row(MultiBufferRow(start_row))
10817 {
10818 Some(crease) => {
10819 let nested_start_row = crease.range().start.row + 1;
10820 let nested_end_row = crease.range().end.row;
10821
10822 if current_level < fold_at_level {
10823 stack.push((nested_start_row, nested_end_row, current_level + 1));
10824 } else if current_level == fold_at_level {
10825 to_fold.push(crease);
10826 }
10827
10828 start_row = nested_end_row + 1;
10829 }
10830 None => start_row += 1,
10831 }
10832 }
10833 }
10834
10835 self.fold_creases(to_fold, true, cx);
10836 }
10837
10838 pub fn fold_all(&mut self, _: &actions::FoldAll, cx: &mut ViewContext<Self>) {
10839 if self.buffer.read(cx).is_singleton() {
10840 let mut fold_ranges = Vec::new();
10841 let snapshot = self.buffer.read(cx).snapshot(cx);
10842
10843 for row in 0..snapshot.max_row().0 {
10844 if let Some(foldable_range) =
10845 self.snapshot(cx).crease_for_buffer_row(MultiBufferRow(row))
10846 {
10847 fold_ranges.push(foldable_range);
10848 }
10849 }
10850
10851 self.fold_creases(fold_ranges, true, cx);
10852 } else {
10853 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
10854 editor
10855 .update(&mut cx, |editor, cx| {
10856 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
10857 editor.fold_buffer(buffer_id, cx);
10858 }
10859 })
10860 .ok();
10861 });
10862 }
10863 }
10864
10865 pub fn fold_function_bodies(
10866 &mut self,
10867 _: &actions::FoldFunctionBodies,
10868 cx: &mut ViewContext<Self>,
10869 ) {
10870 let snapshot = self.buffer.read(cx).snapshot(cx);
10871 let Some((_, _, buffer)) = snapshot.as_singleton() else {
10872 return;
10873 };
10874 let creases = buffer
10875 .function_body_fold_ranges(0..buffer.len())
10876 .map(|range| Crease::simple(range, self.display_map.read(cx).fold_placeholder.clone()))
10877 .collect();
10878
10879 self.fold_creases(creases, true, cx);
10880 }
10881
10882 pub fn fold_recursive(&mut self, _: &actions::FoldRecursive, cx: &mut ViewContext<Self>) {
10883 let mut to_fold = Vec::new();
10884 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10885 let selections = self.selections.all_adjusted(cx);
10886
10887 for selection in selections {
10888 let range = selection.range().sorted();
10889 let buffer_start_row = range.start.row;
10890
10891 if range.start.row != range.end.row {
10892 let mut found = false;
10893 for row in range.start.row..=range.end.row {
10894 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10895 found = true;
10896 to_fold.push(crease);
10897 }
10898 }
10899 if found {
10900 continue;
10901 }
10902 }
10903
10904 for row in (0..=range.start.row).rev() {
10905 if let Some(crease) = display_map.crease_for_buffer_row(MultiBufferRow(row)) {
10906 if crease.range().end.row >= buffer_start_row {
10907 to_fold.push(crease);
10908 } else {
10909 break;
10910 }
10911 }
10912 }
10913 }
10914
10915 self.fold_creases(to_fold, true, cx);
10916 }
10917
10918 pub fn fold_at(&mut self, fold_at: &FoldAt, cx: &mut ViewContext<Self>) {
10919 let buffer_row = fold_at.buffer_row;
10920 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10921
10922 if let Some(crease) = display_map.crease_for_buffer_row(buffer_row) {
10923 let autoscroll = self
10924 .selections
10925 .all::<Point>(cx)
10926 .iter()
10927 .any(|selection| crease.range().overlaps(&selection.range()));
10928
10929 self.fold_creases(vec![crease], autoscroll, cx);
10930 }
10931 }
10932
10933 pub fn unfold_lines(&mut self, _: &UnfoldLines, cx: &mut ViewContext<Self>) {
10934 if self.is_singleton(cx) {
10935 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10936 let buffer = &display_map.buffer_snapshot;
10937 let selections = self.selections.all::<Point>(cx);
10938 let ranges = selections
10939 .iter()
10940 .map(|s| {
10941 let range = s.display_range(&display_map).sorted();
10942 let mut start = range.start.to_point(&display_map);
10943 let mut end = range.end.to_point(&display_map);
10944 start.column = 0;
10945 end.column = buffer.line_len(MultiBufferRow(end.row));
10946 start..end
10947 })
10948 .collect::<Vec<_>>();
10949
10950 self.unfold_ranges(&ranges, true, true, cx);
10951 } else {
10952 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
10953 let mut unfolded_buffers = HashSet::default();
10954 for (_, buffer_snapshot, _) in
10955 multi_buffer_snapshot.excerpts_in_ranges(self.selections.disjoint_anchor_ranges())
10956 {
10957 let buffer_id = buffer_snapshot.remote_id();
10958 if unfolded_buffers.insert(buffer_id) {
10959 self.unfold_buffer(buffer_id, cx);
10960 }
10961 }
10962 }
10963 }
10964
10965 pub fn unfold_recursive(&mut self, _: &UnfoldRecursive, cx: &mut ViewContext<Self>) {
10966 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10967 let selections = self.selections.all::<Point>(cx);
10968 let ranges = selections
10969 .iter()
10970 .map(|s| {
10971 let mut range = s.display_range(&display_map).sorted();
10972 *range.start.column_mut() = 0;
10973 *range.end.column_mut() = display_map.line_len(range.end.row());
10974 let start = range.start.to_point(&display_map);
10975 let end = range.end.to_point(&display_map);
10976 start..end
10977 })
10978 .collect::<Vec<_>>();
10979
10980 self.unfold_ranges(&ranges, true, true, cx);
10981 }
10982
10983 pub fn unfold_at(&mut self, unfold_at: &UnfoldAt, cx: &mut ViewContext<Self>) {
10984 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
10985
10986 let intersection_range = Point::new(unfold_at.buffer_row.0, 0)
10987 ..Point::new(
10988 unfold_at.buffer_row.0,
10989 display_map.buffer_snapshot.line_len(unfold_at.buffer_row),
10990 );
10991
10992 let autoscroll = self
10993 .selections
10994 .all::<Point>(cx)
10995 .iter()
10996 .any(|selection| RangeExt::overlaps(&selection.range(), &intersection_range));
10997
10998 self.unfold_ranges(&[intersection_range], true, autoscroll, cx)
10999 }
11000
11001 pub fn unfold_all(&mut self, _: &actions::UnfoldAll, cx: &mut ViewContext<Self>) {
11002 if self.buffer.read(cx).is_singleton() {
11003 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11004 self.unfold_ranges(&[0..display_map.buffer_snapshot.len()], true, true, cx);
11005 } else {
11006 self.toggle_fold_multiple_buffers = cx.spawn(|editor, mut cx| async move {
11007 editor
11008 .update(&mut cx, |editor, cx| {
11009 for buffer_id in editor.buffer.read(cx).excerpt_buffer_ids() {
11010 editor.unfold_buffer(buffer_id, cx);
11011 }
11012 })
11013 .ok();
11014 });
11015 }
11016 }
11017
11018 pub fn fold_selected_ranges(&mut self, _: &FoldSelectedRanges, cx: &mut ViewContext<Self>) {
11019 let selections = self.selections.all::<Point>(cx);
11020 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11021 let line_mode = self.selections.line_mode;
11022 let ranges = selections
11023 .into_iter()
11024 .map(|s| {
11025 if line_mode {
11026 let start = Point::new(s.start.row, 0);
11027 let end = Point::new(
11028 s.end.row,
11029 display_map
11030 .buffer_snapshot
11031 .line_len(MultiBufferRow(s.end.row)),
11032 );
11033 Crease::simple(start..end, display_map.fold_placeholder.clone())
11034 } else {
11035 Crease::simple(s.start..s.end, display_map.fold_placeholder.clone())
11036 }
11037 })
11038 .collect::<Vec<_>>();
11039 self.fold_creases(ranges, true, cx);
11040 }
11041
11042 pub fn fold_ranges<T: ToOffset + Clone>(
11043 &mut self,
11044 ranges: Vec<Range<T>>,
11045 auto_scroll: bool,
11046 cx: &mut ViewContext<Self>,
11047 ) {
11048 let display_map = self.display_map.update(cx, |map, cx| map.snapshot(cx));
11049 let ranges = ranges
11050 .into_iter()
11051 .map(|r| Crease::simple(r, display_map.fold_placeholder.clone()))
11052 .collect::<Vec<_>>();
11053 self.fold_creases(ranges, auto_scroll, cx);
11054 }
11055
11056 pub fn fold_creases<T: ToOffset + Clone>(
11057 &mut self,
11058 creases: Vec<Crease<T>>,
11059 auto_scroll: bool,
11060 cx: &mut ViewContext<Self>,
11061 ) {
11062 if creases.is_empty() {
11063 return;
11064 }
11065
11066 let mut buffers_affected = HashSet::default();
11067 let multi_buffer = self.buffer().read(cx);
11068 for crease in &creases {
11069 if let Some((_, buffer, _)) =
11070 multi_buffer.excerpt_containing(crease.range().start.clone(), cx)
11071 {
11072 buffers_affected.insert(buffer.read(cx).remote_id());
11073 };
11074 }
11075
11076 self.display_map.update(cx, |map, cx| map.fold(creases, cx));
11077
11078 if auto_scroll {
11079 self.request_autoscroll(Autoscroll::fit(), cx);
11080 }
11081
11082 for buffer_id in buffers_affected {
11083 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11084 }
11085
11086 cx.notify();
11087
11088 if let Some(active_diagnostics) = self.active_diagnostics.take() {
11089 // Clear diagnostics block when folding a range that contains it.
11090 let snapshot = self.snapshot(cx);
11091 if snapshot.intersects_fold(active_diagnostics.primary_range.start) {
11092 drop(snapshot);
11093 self.active_diagnostics = Some(active_diagnostics);
11094 self.dismiss_diagnostics(cx);
11095 } else {
11096 self.active_diagnostics = Some(active_diagnostics);
11097 }
11098 }
11099
11100 self.scrollbar_marker_state.dirty = true;
11101 }
11102
11103 /// Removes any folds whose ranges intersect any of the given ranges.
11104 pub fn unfold_ranges<T: ToOffset + Clone>(
11105 &mut self,
11106 ranges: &[Range<T>],
11107 inclusive: bool,
11108 auto_scroll: bool,
11109 cx: &mut ViewContext<Self>,
11110 ) {
11111 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11112 map.unfold_intersecting(ranges.iter().cloned(), inclusive, cx)
11113 });
11114 }
11115
11116 pub fn fold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
11117 if self.buffer().read(cx).is_singleton() || self.buffer_folded(buffer_id, cx) {
11118 return;
11119 }
11120 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
11121 return;
11122 };
11123 let folded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
11124 self.display_map
11125 .update(cx, |display_map, cx| display_map.fold_buffer(buffer_id, cx));
11126 cx.emit(EditorEvent::BufferFoldToggled {
11127 ids: folded_excerpts.iter().map(|&(id, _)| id).collect(),
11128 folded: true,
11129 });
11130 cx.notify();
11131 }
11132
11133 pub fn unfold_buffer(&mut self, buffer_id: BufferId, cx: &mut ViewContext<Self>) {
11134 if self.buffer().read(cx).is_singleton() || !self.buffer_folded(buffer_id, cx) {
11135 return;
11136 }
11137 let Some(buffer) = self.buffer().read(cx).buffer(buffer_id) else {
11138 return;
11139 };
11140 let unfolded_excerpts = self.buffer().read(cx).excerpts_for_buffer(&buffer, cx);
11141 self.display_map.update(cx, |display_map, cx| {
11142 display_map.unfold_buffer(buffer_id, cx);
11143 });
11144 cx.emit(EditorEvent::BufferFoldToggled {
11145 ids: unfolded_excerpts.iter().map(|&(id, _)| id).collect(),
11146 folded: false,
11147 });
11148 cx.notify();
11149 }
11150
11151 pub fn buffer_folded(&self, buffer: BufferId, cx: &AppContext) -> bool {
11152 self.display_map.read(cx).buffer_folded(buffer)
11153 }
11154
11155 /// Removes any folds with the given ranges.
11156 pub fn remove_folds_with_type<T: ToOffset + Clone>(
11157 &mut self,
11158 ranges: &[Range<T>],
11159 type_id: TypeId,
11160 auto_scroll: bool,
11161 cx: &mut ViewContext<Self>,
11162 ) {
11163 self.remove_folds_with(ranges, auto_scroll, cx, |map, cx| {
11164 map.remove_folds_with_type(ranges.iter().cloned(), type_id, cx)
11165 });
11166 }
11167
11168 fn remove_folds_with<T: ToOffset + Clone>(
11169 &mut self,
11170 ranges: &[Range<T>],
11171 auto_scroll: bool,
11172 cx: &mut ViewContext<Self>,
11173 update: impl FnOnce(&mut DisplayMap, &mut ModelContext<DisplayMap>),
11174 ) {
11175 if ranges.is_empty() {
11176 return;
11177 }
11178
11179 let mut buffers_affected = HashSet::default();
11180 let multi_buffer = self.buffer().read(cx);
11181 for range in ranges {
11182 if let Some((_, buffer, _)) = multi_buffer.excerpt_containing(range.start.clone(), cx) {
11183 buffers_affected.insert(buffer.read(cx).remote_id());
11184 };
11185 }
11186
11187 self.display_map.update(cx, update);
11188
11189 if auto_scroll {
11190 self.request_autoscroll(Autoscroll::fit(), cx);
11191 }
11192
11193 for buffer_id in buffers_affected {
11194 Self::sync_expanded_diff_hunks(&mut self.diff_map, buffer_id, cx);
11195 }
11196
11197 cx.notify();
11198 self.scrollbar_marker_state.dirty = true;
11199 self.active_indent_guides_state.dirty = true;
11200 }
11201
11202 pub fn default_fold_placeholder(&self, cx: &AppContext) -> FoldPlaceholder {
11203 self.display_map.read(cx).fold_placeholder.clone()
11204 }
11205
11206 pub fn set_gutter_hovered(&mut self, hovered: bool, cx: &mut ViewContext<Self>) {
11207 if hovered != self.gutter_hovered {
11208 self.gutter_hovered = hovered;
11209 cx.notify();
11210 }
11211 }
11212
11213 pub fn insert_blocks(
11214 &mut self,
11215 blocks: impl IntoIterator<Item = BlockProperties<Anchor>>,
11216 autoscroll: Option<Autoscroll>,
11217 cx: &mut ViewContext<Self>,
11218 ) -> Vec<CustomBlockId> {
11219 let blocks = self
11220 .display_map
11221 .update(cx, |display_map, cx| display_map.insert_blocks(blocks, cx));
11222 if let Some(autoscroll) = autoscroll {
11223 self.request_autoscroll(autoscroll, cx);
11224 }
11225 cx.notify();
11226 blocks
11227 }
11228
11229 pub fn resize_blocks(
11230 &mut self,
11231 heights: HashMap<CustomBlockId, u32>,
11232 autoscroll: Option<Autoscroll>,
11233 cx: &mut ViewContext<Self>,
11234 ) {
11235 self.display_map
11236 .update(cx, |display_map, cx| display_map.resize_blocks(heights, cx));
11237 if let Some(autoscroll) = autoscroll {
11238 self.request_autoscroll(autoscroll, cx);
11239 }
11240 cx.notify();
11241 }
11242
11243 pub fn replace_blocks(
11244 &mut self,
11245 renderers: HashMap<CustomBlockId, RenderBlock>,
11246 autoscroll: Option<Autoscroll>,
11247 cx: &mut ViewContext<Self>,
11248 ) {
11249 self.display_map
11250 .update(cx, |display_map, _cx| display_map.replace_blocks(renderers));
11251 if let Some(autoscroll) = autoscroll {
11252 self.request_autoscroll(autoscroll, cx);
11253 }
11254 cx.notify();
11255 }
11256
11257 pub fn remove_blocks(
11258 &mut self,
11259 block_ids: HashSet<CustomBlockId>,
11260 autoscroll: Option<Autoscroll>,
11261 cx: &mut ViewContext<Self>,
11262 ) {
11263 self.display_map.update(cx, |display_map, cx| {
11264 display_map.remove_blocks(block_ids, cx)
11265 });
11266 if let Some(autoscroll) = autoscroll {
11267 self.request_autoscroll(autoscroll, cx);
11268 }
11269 cx.notify();
11270 }
11271
11272 pub fn row_for_block(
11273 &self,
11274 block_id: CustomBlockId,
11275 cx: &mut ViewContext<Self>,
11276 ) -> Option<DisplayRow> {
11277 self.display_map
11278 .update(cx, |map, cx| map.row_for_block(block_id, cx))
11279 }
11280
11281 pub(crate) fn set_focused_block(&mut self, focused_block: FocusedBlock) {
11282 self.focused_block = Some(focused_block);
11283 }
11284
11285 pub(crate) fn take_focused_block(&mut self) -> Option<FocusedBlock> {
11286 self.focused_block.take()
11287 }
11288
11289 pub fn insert_creases(
11290 &mut self,
11291 creases: impl IntoIterator<Item = Crease<Anchor>>,
11292 cx: &mut ViewContext<Self>,
11293 ) -> Vec<CreaseId> {
11294 self.display_map
11295 .update(cx, |map, cx| map.insert_creases(creases, cx))
11296 }
11297
11298 pub fn remove_creases(
11299 &mut self,
11300 ids: impl IntoIterator<Item = CreaseId>,
11301 cx: &mut ViewContext<Self>,
11302 ) {
11303 self.display_map
11304 .update(cx, |map, cx| map.remove_creases(ids, cx));
11305 }
11306
11307 pub fn longest_row(&self, cx: &mut AppContext) -> DisplayRow {
11308 self.display_map
11309 .update(cx, |map, cx| map.snapshot(cx))
11310 .longest_row()
11311 }
11312
11313 pub fn max_point(&self, cx: &mut AppContext) -> DisplayPoint {
11314 self.display_map
11315 .update(cx, |map, cx| map.snapshot(cx))
11316 .max_point()
11317 }
11318
11319 pub fn text(&self, cx: &AppContext) -> String {
11320 self.buffer.read(cx).read(cx).text()
11321 }
11322
11323 pub fn text_option(&self, cx: &AppContext) -> Option<String> {
11324 let text = self.text(cx);
11325 let text = text.trim();
11326
11327 if text.is_empty() {
11328 return None;
11329 }
11330
11331 Some(text.to_string())
11332 }
11333
11334 pub fn set_text(&mut self, text: impl Into<Arc<str>>, cx: &mut ViewContext<Self>) {
11335 self.transact(cx, |this, cx| {
11336 this.buffer
11337 .read(cx)
11338 .as_singleton()
11339 .expect("you can only call set_text on editors for singleton buffers")
11340 .update(cx, |buffer, cx| buffer.set_text(text, cx));
11341 });
11342 }
11343
11344 pub fn display_text(&self, cx: &mut AppContext) -> String {
11345 self.display_map
11346 .update(cx, |map, cx| map.snapshot(cx))
11347 .text()
11348 }
11349
11350 pub fn wrap_guides(&self, cx: &AppContext) -> SmallVec<[(usize, bool); 2]> {
11351 let mut wrap_guides = smallvec::smallvec![];
11352
11353 if self.show_wrap_guides == Some(false) {
11354 return wrap_guides;
11355 }
11356
11357 let settings = self.buffer.read(cx).settings_at(0, cx);
11358 if settings.show_wrap_guides {
11359 if let SoftWrap::Column(soft_wrap) = self.soft_wrap_mode(cx) {
11360 wrap_guides.push((soft_wrap as usize, true));
11361 } else if let SoftWrap::Bounded(soft_wrap) = self.soft_wrap_mode(cx) {
11362 wrap_guides.push((soft_wrap as usize, true));
11363 }
11364 wrap_guides.extend(settings.wrap_guides.iter().map(|guide| (*guide, false)))
11365 }
11366
11367 wrap_guides
11368 }
11369
11370 pub fn soft_wrap_mode(&self, cx: &AppContext) -> SoftWrap {
11371 let settings = self.buffer.read(cx).settings_at(0, cx);
11372 let mode = self.soft_wrap_mode_override.unwrap_or(settings.soft_wrap);
11373 match mode {
11374 language_settings::SoftWrap::PreferLine | language_settings::SoftWrap::None => {
11375 SoftWrap::None
11376 }
11377 language_settings::SoftWrap::EditorWidth => SoftWrap::EditorWidth,
11378 language_settings::SoftWrap::PreferredLineLength => {
11379 SoftWrap::Column(settings.preferred_line_length)
11380 }
11381 language_settings::SoftWrap::Bounded => {
11382 SoftWrap::Bounded(settings.preferred_line_length)
11383 }
11384 }
11385 }
11386
11387 pub fn set_soft_wrap_mode(
11388 &mut self,
11389 mode: language_settings::SoftWrap,
11390 cx: &mut ViewContext<Self>,
11391 ) {
11392 self.soft_wrap_mode_override = Some(mode);
11393 cx.notify();
11394 }
11395
11396 pub fn set_text_style_refinement(&mut self, style: TextStyleRefinement) {
11397 self.text_style_refinement = Some(style);
11398 }
11399
11400 /// called by the Element so we know what style we were most recently rendered with.
11401 pub(crate) fn set_style(&mut self, style: EditorStyle, cx: &mut ViewContext<Self>) {
11402 let rem_size = cx.rem_size();
11403 self.display_map.update(cx, |map, cx| {
11404 map.set_font(
11405 style.text.font(),
11406 style.text.font_size.to_pixels(rem_size),
11407 cx,
11408 )
11409 });
11410 self.style = Some(style);
11411 }
11412
11413 pub fn style(&self) -> Option<&EditorStyle> {
11414 self.style.as_ref()
11415 }
11416
11417 // Called by the element. This method is not designed to be called outside of the editor
11418 // element's layout code because it does not notify when rewrapping is computed synchronously.
11419 pub(crate) fn set_wrap_width(&self, width: Option<Pixels>, cx: &mut AppContext) -> bool {
11420 self.display_map
11421 .update(cx, |map, cx| map.set_wrap_width(width, cx))
11422 }
11423
11424 pub fn toggle_soft_wrap(&mut self, _: &ToggleSoftWrap, cx: &mut ViewContext<Self>) {
11425 if self.soft_wrap_mode_override.is_some() {
11426 self.soft_wrap_mode_override.take();
11427 } else {
11428 let soft_wrap = match self.soft_wrap_mode(cx) {
11429 SoftWrap::GitDiff => return,
11430 SoftWrap::None => language_settings::SoftWrap::EditorWidth,
11431 SoftWrap::EditorWidth | SoftWrap::Column(_) | SoftWrap::Bounded(_) => {
11432 language_settings::SoftWrap::None
11433 }
11434 };
11435 self.soft_wrap_mode_override = Some(soft_wrap);
11436 }
11437 cx.notify();
11438 }
11439
11440 pub fn toggle_tab_bar(&mut self, _: &ToggleTabBar, cx: &mut ViewContext<Self>) {
11441 let Some(workspace) = self.workspace() else {
11442 return;
11443 };
11444 let fs = workspace.read(cx).app_state().fs.clone();
11445 let current_show = TabBarSettings::get_global(cx).show;
11446 update_settings_file::<TabBarSettings>(fs, cx, move |setting, _| {
11447 setting.show = Some(!current_show);
11448 });
11449 }
11450
11451 pub fn toggle_indent_guides(&mut self, _: &ToggleIndentGuides, cx: &mut ViewContext<Self>) {
11452 let currently_enabled = self.should_show_indent_guides().unwrap_or_else(|| {
11453 self.buffer
11454 .read(cx)
11455 .settings_at(0, cx)
11456 .indent_guides
11457 .enabled
11458 });
11459 self.show_indent_guides = Some(!currently_enabled);
11460 cx.notify();
11461 }
11462
11463 fn should_show_indent_guides(&self) -> Option<bool> {
11464 self.show_indent_guides
11465 }
11466
11467 pub fn toggle_line_numbers(&mut self, _: &ToggleLineNumbers, cx: &mut ViewContext<Self>) {
11468 let mut editor_settings = EditorSettings::get_global(cx).clone();
11469 editor_settings.gutter.line_numbers = !editor_settings.gutter.line_numbers;
11470 EditorSettings::override_global(editor_settings, cx);
11471 }
11472
11473 pub fn should_use_relative_line_numbers(&self, cx: &WindowContext) -> bool {
11474 self.use_relative_line_numbers
11475 .unwrap_or(EditorSettings::get_global(cx).relative_line_numbers)
11476 }
11477
11478 pub fn toggle_relative_line_numbers(
11479 &mut self,
11480 _: &ToggleRelativeLineNumbers,
11481 cx: &mut ViewContext<Self>,
11482 ) {
11483 let is_relative = self.should_use_relative_line_numbers(cx);
11484 self.set_relative_line_number(Some(!is_relative), cx)
11485 }
11486
11487 pub fn set_relative_line_number(
11488 &mut self,
11489 is_relative: Option<bool>,
11490 cx: &mut ViewContext<Self>,
11491 ) {
11492 self.use_relative_line_numbers = is_relative;
11493 cx.notify();
11494 }
11495
11496 pub fn set_show_gutter(&mut self, show_gutter: bool, cx: &mut ViewContext<Self>) {
11497 self.show_gutter = show_gutter;
11498 cx.notify();
11499 }
11500
11501 pub fn set_show_scrollbars(&mut self, show_scrollbars: bool, cx: &mut ViewContext<Self>) {
11502 self.show_scrollbars = show_scrollbars;
11503 cx.notify();
11504 }
11505
11506 pub fn set_show_line_numbers(&mut self, show_line_numbers: bool, cx: &mut ViewContext<Self>) {
11507 self.show_line_numbers = Some(show_line_numbers);
11508 cx.notify();
11509 }
11510
11511 pub fn set_show_git_diff_gutter(
11512 &mut self,
11513 show_git_diff_gutter: bool,
11514 cx: &mut ViewContext<Self>,
11515 ) {
11516 self.show_git_diff_gutter = Some(show_git_diff_gutter);
11517 cx.notify();
11518 }
11519
11520 pub fn set_show_code_actions(&mut self, show_code_actions: bool, cx: &mut ViewContext<Self>) {
11521 self.show_code_actions = Some(show_code_actions);
11522 cx.notify();
11523 }
11524
11525 pub fn set_show_runnables(&mut self, show_runnables: bool, cx: &mut ViewContext<Self>) {
11526 self.show_runnables = Some(show_runnables);
11527 cx.notify();
11528 }
11529
11530 pub fn set_masked(&mut self, masked: bool, cx: &mut ViewContext<Self>) {
11531 if self.display_map.read(cx).masked != masked {
11532 self.display_map.update(cx, |map, _| map.masked = masked);
11533 }
11534 cx.notify()
11535 }
11536
11537 pub fn set_show_wrap_guides(&mut self, show_wrap_guides: bool, cx: &mut ViewContext<Self>) {
11538 self.show_wrap_guides = Some(show_wrap_guides);
11539 cx.notify();
11540 }
11541
11542 pub fn set_show_indent_guides(&mut self, show_indent_guides: bool, cx: &mut ViewContext<Self>) {
11543 self.show_indent_guides = Some(show_indent_guides);
11544 cx.notify();
11545 }
11546
11547 pub fn working_directory(&self, cx: &WindowContext) -> Option<PathBuf> {
11548 if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11549 if let Some(file) = buffer.read(cx).file().and_then(|f| f.as_local()) {
11550 if let Some(dir) = file.abs_path(cx).parent() {
11551 return Some(dir.to_owned());
11552 }
11553 }
11554
11555 if let Some(project_path) = buffer.read(cx).project_path(cx) {
11556 return Some(project_path.path.to_path_buf());
11557 }
11558 }
11559
11560 None
11561 }
11562
11563 fn target_file<'a>(&self, cx: &'a AppContext) -> Option<&'a dyn language::LocalFile> {
11564 self.active_excerpt(cx)?
11565 .1
11566 .read(cx)
11567 .file()
11568 .and_then(|f| f.as_local())
11569 }
11570
11571 fn target_file_abs_path(&self, cx: &mut ViewContext<Self>) -> Option<PathBuf> {
11572 self.active_excerpt(cx).and_then(|(_, buffer, _)| {
11573 let project_path = buffer.read(cx).project_path(cx)?;
11574 let project = self.project.as_ref()?.read(cx);
11575 project.absolute_path(&project_path, cx)
11576 })
11577 }
11578
11579 fn target_file_path(&self, cx: &mut ViewContext<Self>) -> Option<PathBuf> {
11580 self.active_excerpt(cx).and_then(|(_, buffer, _)| {
11581 let project_path = buffer.read(cx).project_path(cx)?;
11582 let project = self.project.as_ref()?.read(cx);
11583 let entry = project.entry_for_path(&project_path, cx)?;
11584 let path = entry.path.to_path_buf();
11585 Some(path)
11586 })
11587 }
11588
11589 pub fn reveal_in_finder(&mut self, _: &RevealInFileManager, cx: &mut ViewContext<Self>) {
11590 if let Some(target) = self.target_file(cx) {
11591 cx.reveal_path(&target.abs_path(cx));
11592 }
11593 }
11594
11595 pub fn copy_path(&mut self, _: &CopyPath, cx: &mut ViewContext<Self>) {
11596 if let Some(path) = self.target_file_abs_path(cx) {
11597 if let Some(path) = path.to_str() {
11598 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11599 }
11600 }
11601 }
11602
11603 pub fn copy_relative_path(&mut self, _: &CopyRelativePath, cx: &mut ViewContext<Self>) {
11604 if let Some(path) = self.target_file_path(cx) {
11605 if let Some(path) = path.to_str() {
11606 cx.write_to_clipboard(ClipboardItem::new_string(path.to_string()));
11607 }
11608 }
11609 }
11610
11611 pub fn toggle_git_blame(&mut self, _: &ToggleGitBlame, cx: &mut ViewContext<Self>) {
11612 self.show_git_blame_gutter = !self.show_git_blame_gutter;
11613
11614 if self.show_git_blame_gutter && !self.has_blame_entries(cx) {
11615 self.start_git_blame(true, cx);
11616 }
11617
11618 cx.notify();
11619 }
11620
11621 pub fn toggle_git_blame_inline(
11622 &mut self,
11623 _: &ToggleGitBlameInline,
11624 cx: &mut ViewContext<Self>,
11625 ) {
11626 self.toggle_git_blame_inline_internal(true, cx);
11627 cx.notify();
11628 }
11629
11630 pub fn git_blame_inline_enabled(&self) -> bool {
11631 self.git_blame_inline_enabled
11632 }
11633
11634 pub fn toggle_selection_menu(&mut self, _: &ToggleSelectionMenu, cx: &mut ViewContext<Self>) {
11635 self.show_selection_menu = self
11636 .show_selection_menu
11637 .map(|show_selections_menu| !show_selections_menu)
11638 .or_else(|| Some(!EditorSettings::get_global(cx).toolbar.selections_menu));
11639
11640 cx.notify();
11641 }
11642
11643 pub fn selection_menu_enabled(&self, cx: &AppContext) -> bool {
11644 self.show_selection_menu
11645 .unwrap_or_else(|| EditorSettings::get_global(cx).toolbar.selections_menu)
11646 }
11647
11648 fn start_git_blame(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11649 if let Some(project) = self.project.as_ref() {
11650 let Some(buffer) = self.buffer().read(cx).as_singleton() else {
11651 return;
11652 };
11653
11654 if buffer.read(cx).file().is_none() {
11655 return;
11656 }
11657
11658 let focused = self.focus_handle(cx).contains_focused(cx);
11659
11660 let project = project.clone();
11661 let blame =
11662 cx.new_model(|cx| GitBlame::new(buffer, project, user_triggered, focused, cx));
11663 self.blame_subscription = Some(cx.observe(&blame, |_, _, cx| cx.notify()));
11664 self.blame = Some(blame);
11665 }
11666 }
11667
11668 fn toggle_git_blame_inline_internal(
11669 &mut self,
11670 user_triggered: bool,
11671 cx: &mut ViewContext<Self>,
11672 ) {
11673 if self.git_blame_inline_enabled {
11674 self.git_blame_inline_enabled = false;
11675 self.show_git_blame_inline = false;
11676 self.show_git_blame_inline_delay_task.take();
11677 } else {
11678 self.git_blame_inline_enabled = true;
11679 self.start_git_blame_inline(user_triggered, cx);
11680 }
11681
11682 cx.notify();
11683 }
11684
11685 fn start_git_blame_inline(&mut self, user_triggered: bool, cx: &mut ViewContext<Self>) {
11686 self.start_git_blame(user_triggered, cx);
11687
11688 if ProjectSettings::get_global(cx)
11689 .git
11690 .inline_blame_delay()
11691 .is_some()
11692 {
11693 self.start_inline_blame_timer(cx);
11694 } else {
11695 self.show_git_blame_inline = true
11696 }
11697 }
11698
11699 pub fn blame(&self) -> Option<&Model<GitBlame>> {
11700 self.blame.as_ref()
11701 }
11702
11703 pub fn show_git_blame_gutter(&self) -> bool {
11704 self.show_git_blame_gutter
11705 }
11706
11707 pub fn render_git_blame_gutter(&mut self, cx: &mut WindowContext) -> bool {
11708 self.show_git_blame_gutter && self.has_blame_entries(cx)
11709 }
11710
11711 pub fn render_git_blame_inline(&mut self, cx: &mut WindowContext) -> bool {
11712 self.show_git_blame_inline
11713 && self.focus_handle.is_focused(cx)
11714 && !self.newest_selection_head_on_empty_line(cx)
11715 && self.has_blame_entries(cx)
11716 }
11717
11718 fn has_blame_entries(&self, cx: &mut WindowContext) -> bool {
11719 self.blame()
11720 .map_or(false, |blame| blame.read(cx).has_generated_entries())
11721 }
11722
11723 fn newest_selection_head_on_empty_line(&mut self, cx: &mut WindowContext) -> bool {
11724 let cursor_anchor = self.selections.newest_anchor().head();
11725
11726 let snapshot = self.buffer.read(cx).snapshot(cx);
11727 let buffer_row = MultiBufferRow(cursor_anchor.to_point(&snapshot).row);
11728
11729 snapshot.line_len(buffer_row) == 0
11730 }
11731
11732 fn get_permalink_to_line(&mut self, cx: &mut ViewContext<Self>) -> Task<Result<url::Url>> {
11733 let buffer_and_selection = maybe!({
11734 let selection = self.selections.newest::<Point>(cx);
11735 let selection_range = selection.range();
11736
11737 let (buffer, selection) = if let Some(buffer) = self.buffer().read(cx).as_singleton() {
11738 (buffer, selection_range.start.row..selection_range.end.row)
11739 } else {
11740 let multi_buffer = self.buffer().read(cx);
11741 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
11742 let buffer_ranges = multi_buffer_snapshot.range_to_buffer_ranges(selection_range);
11743
11744 let (excerpt, range) = if selection.reversed {
11745 buffer_ranges.first()
11746 } else {
11747 buffer_ranges.last()
11748 }?;
11749
11750 let snapshot = excerpt.buffer();
11751 let selection = text::ToPoint::to_point(&range.start, &snapshot).row
11752 ..text::ToPoint::to_point(&range.end, &snapshot).row;
11753 (
11754 multi_buffer.buffer(excerpt.buffer_id()).unwrap().clone(),
11755 selection,
11756 )
11757 };
11758
11759 Some((buffer, selection))
11760 });
11761
11762 let Some((buffer, selection)) = buffer_and_selection else {
11763 return Task::ready(Err(anyhow!("failed to determine buffer and selection")));
11764 };
11765
11766 let Some(project) = self.project.as_ref() else {
11767 return Task::ready(Err(anyhow!("editor does not have project")));
11768 };
11769
11770 project.update(cx, |project, cx| {
11771 project.get_permalink_to_line(&buffer, selection, cx)
11772 })
11773 }
11774
11775 pub fn copy_permalink_to_line(&mut self, _: &CopyPermalinkToLine, cx: &mut ViewContext<Self>) {
11776 let permalink_task = self.get_permalink_to_line(cx);
11777 let workspace = self.workspace();
11778
11779 cx.spawn(|_, mut cx| async move {
11780 match permalink_task.await {
11781 Ok(permalink) => {
11782 cx.update(|cx| {
11783 cx.write_to_clipboard(ClipboardItem::new_string(permalink.to_string()));
11784 })
11785 .ok();
11786 }
11787 Err(err) => {
11788 let message = format!("Failed to copy permalink: {err}");
11789
11790 Err::<(), anyhow::Error>(err).log_err();
11791
11792 if let Some(workspace) = workspace {
11793 workspace
11794 .update(&mut cx, |workspace, cx| {
11795 struct CopyPermalinkToLine;
11796
11797 workspace.show_toast(
11798 Toast::new(
11799 NotificationId::unique::<CopyPermalinkToLine>(),
11800 message,
11801 ),
11802 cx,
11803 )
11804 })
11805 .ok();
11806 }
11807 }
11808 }
11809 })
11810 .detach();
11811 }
11812
11813 pub fn copy_file_location(&mut self, _: &CopyFileLocation, cx: &mut ViewContext<Self>) {
11814 let selection = self.selections.newest::<Point>(cx).start.row + 1;
11815 if let Some(file) = self.target_file(cx) {
11816 if let Some(path) = file.path().to_str() {
11817 cx.write_to_clipboard(ClipboardItem::new_string(format!("{path}:{selection}")));
11818 }
11819 }
11820 }
11821
11822 pub fn open_permalink_to_line(&mut self, _: &OpenPermalinkToLine, cx: &mut ViewContext<Self>) {
11823 let permalink_task = self.get_permalink_to_line(cx);
11824 let workspace = self.workspace();
11825
11826 cx.spawn(|_, mut cx| async move {
11827 match permalink_task.await {
11828 Ok(permalink) => {
11829 cx.update(|cx| {
11830 cx.open_url(permalink.as_ref());
11831 })
11832 .ok();
11833 }
11834 Err(err) => {
11835 let message = format!("Failed to open permalink: {err}");
11836
11837 Err::<(), anyhow::Error>(err).log_err();
11838
11839 if let Some(workspace) = workspace {
11840 workspace
11841 .update(&mut cx, |workspace, cx| {
11842 struct OpenPermalinkToLine;
11843
11844 workspace.show_toast(
11845 Toast::new(
11846 NotificationId::unique::<OpenPermalinkToLine>(),
11847 message,
11848 ),
11849 cx,
11850 )
11851 })
11852 .ok();
11853 }
11854 }
11855 }
11856 })
11857 .detach();
11858 }
11859
11860 pub fn insert_uuid_v4(&mut self, _: &InsertUuidV4, cx: &mut ViewContext<Self>) {
11861 self.insert_uuid(UuidVersion::V4, cx);
11862 }
11863
11864 pub fn insert_uuid_v7(&mut self, _: &InsertUuidV7, cx: &mut ViewContext<Self>) {
11865 self.insert_uuid(UuidVersion::V7, cx);
11866 }
11867
11868 fn insert_uuid(&mut self, version: UuidVersion, cx: &mut ViewContext<Self>) {
11869 self.transact(cx, |this, cx| {
11870 let edits = this
11871 .selections
11872 .all::<Point>(cx)
11873 .into_iter()
11874 .map(|selection| {
11875 let uuid = match version {
11876 UuidVersion::V4 => uuid::Uuid::new_v4(),
11877 UuidVersion::V7 => uuid::Uuid::now_v7(),
11878 };
11879
11880 (selection.range(), uuid.to_string())
11881 });
11882 this.edit(edits, cx);
11883 this.refresh_inline_completion(true, false, cx);
11884 });
11885 }
11886
11887 /// Adds a row highlight for the given range. If a row has multiple highlights, the
11888 /// last highlight added will be used.
11889 ///
11890 /// If the range ends at the beginning of a line, then that line will not be highlighted.
11891 pub fn highlight_rows<T: 'static>(
11892 &mut self,
11893 range: Range<Anchor>,
11894 color: Hsla,
11895 should_autoscroll: bool,
11896 cx: &mut ViewContext<Self>,
11897 ) {
11898 let snapshot = self.buffer().read(cx).snapshot(cx);
11899 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11900 let ix = row_highlights.binary_search_by(|highlight| {
11901 Ordering::Equal
11902 .then_with(|| highlight.range.start.cmp(&range.start, &snapshot))
11903 .then_with(|| highlight.range.end.cmp(&range.end, &snapshot))
11904 });
11905
11906 if let Err(mut ix) = ix {
11907 let index = post_inc(&mut self.highlight_order);
11908
11909 // If this range intersects with the preceding highlight, then merge it with
11910 // the preceding highlight. Otherwise insert a new highlight.
11911 let mut merged = false;
11912 if ix > 0 {
11913 let prev_highlight = &mut row_highlights[ix - 1];
11914 if prev_highlight
11915 .range
11916 .end
11917 .cmp(&range.start, &snapshot)
11918 .is_ge()
11919 {
11920 ix -= 1;
11921 if prev_highlight.range.end.cmp(&range.end, &snapshot).is_lt() {
11922 prev_highlight.range.end = range.end;
11923 }
11924 merged = true;
11925 prev_highlight.index = index;
11926 prev_highlight.color = color;
11927 prev_highlight.should_autoscroll = should_autoscroll;
11928 }
11929 }
11930
11931 if !merged {
11932 row_highlights.insert(
11933 ix,
11934 RowHighlight {
11935 range: range.clone(),
11936 index,
11937 color,
11938 should_autoscroll,
11939 },
11940 );
11941 }
11942
11943 // If any of the following highlights intersect with this one, merge them.
11944 while let Some(next_highlight) = row_highlights.get(ix + 1) {
11945 let highlight = &row_highlights[ix];
11946 if next_highlight
11947 .range
11948 .start
11949 .cmp(&highlight.range.end, &snapshot)
11950 .is_le()
11951 {
11952 if next_highlight
11953 .range
11954 .end
11955 .cmp(&highlight.range.end, &snapshot)
11956 .is_gt()
11957 {
11958 row_highlights[ix].range.end = next_highlight.range.end;
11959 }
11960 row_highlights.remove(ix + 1);
11961 } else {
11962 break;
11963 }
11964 }
11965 }
11966 }
11967
11968 /// Remove any highlighted row ranges of the given type that intersect the
11969 /// given ranges.
11970 pub fn remove_highlighted_rows<T: 'static>(
11971 &mut self,
11972 ranges_to_remove: Vec<Range<Anchor>>,
11973 cx: &mut ViewContext<Self>,
11974 ) {
11975 let snapshot = self.buffer().read(cx).snapshot(cx);
11976 let row_highlights = self.highlighted_rows.entry(TypeId::of::<T>()).or_default();
11977 let mut ranges_to_remove = ranges_to_remove.iter().peekable();
11978 row_highlights.retain(|highlight| {
11979 while let Some(range_to_remove) = ranges_to_remove.peek() {
11980 match range_to_remove.end.cmp(&highlight.range.start, &snapshot) {
11981 Ordering::Less | Ordering::Equal => {
11982 ranges_to_remove.next();
11983 }
11984 Ordering::Greater => {
11985 match range_to_remove.start.cmp(&highlight.range.end, &snapshot) {
11986 Ordering::Less | Ordering::Equal => {
11987 return false;
11988 }
11989 Ordering::Greater => break,
11990 }
11991 }
11992 }
11993 }
11994
11995 true
11996 })
11997 }
11998
11999 /// Clear all anchor ranges for a certain highlight context type, so no corresponding rows will be highlighted.
12000 pub fn clear_row_highlights<T: 'static>(&mut self) {
12001 self.highlighted_rows.remove(&TypeId::of::<T>());
12002 }
12003
12004 /// For a highlight given context type, gets all anchor ranges that will be used for row highlighting.
12005 pub fn highlighted_rows<T: 'static>(&self) -> impl '_ + Iterator<Item = (Range<Anchor>, Hsla)> {
12006 self.highlighted_rows
12007 .get(&TypeId::of::<T>())
12008 .map_or(&[] as &[_], |vec| vec.as_slice())
12009 .iter()
12010 .map(|highlight| (highlight.range.clone(), highlight.color))
12011 }
12012
12013 /// Merges all anchor ranges for all context types ever set, picking the last highlight added in case of a row conflict.
12014 /// Returns a map of display rows that are highlighted and their corresponding highlight color.
12015 /// Allows to ignore certain kinds of highlights.
12016 pub fn highlighted_display_rows(
12017 &mut self,
12018 cx: &mut WindowContext,
12019 ) -> BTreeMap<DisplayRow, Hsla> {
12020 let snapshot = self.snapshot(cx);
12021 let mut used_highlight_orders = HashMap::default();
12022 self.highlighted_rows
12023 .iter()
12024 .flat_map(|(_, highlighted_rows)| highlighted_rows.iter())
12025 .fold(
12026 BTreeMap::<DisplayRow, Hsla>::new(),
12027 |mut unique_rows, highlight| {
12028 let start = highlight.range.start.to_display_point(&snapshot);
12029 let end = highlight.range.end.to_display_point(&snapshot);
12030 let start_row = start.row().0;
12031 let end_row = if highlight.range.end.text_anchor != text::Anchor::MAX
12032 && end.column() == 0
12033 {
12034 end.row().0.saturating_sub(1)
12035 } else {
12036 end.row().0
12037 };
12038 for row in start_row..=end_row {
12039 let used_index =
12040 used_highlight_orders.entry(row).or_insert(highlight.index);
12041 if highlight.index >= *used_index {
12042 *used_index = highlight.index;
12043 unique_rows.insert(DisplayRow(row), highlight.color);
12044 }
12045 }
12046 unique_rows
12047 },
12048 )
12049 }
12050
12051 pub fn highlighted_display_row_for_autoscroll(
12052 &self,
12053 snapshot: &DisplaySnapshot,
12054 ) -> Option<DisplayRow> {
12055 self.highlighted_rows
12056 .values()
12057 .flat_map(|highlighted_rows| highlighted_rows.iter())
12058 .filter_map(|highlight| {
12059 if highlight.should_autoscroll {
12060 Some(highlight.range.start.to_display_point(snapshot).row())
12061 } else {
12062 None
12063 }
12064 })
12065 .min()
12066 }
12067
12068 pub fn set_search_within_ranges(
12069 &mut self,
12070 ranges: &[Range<Anchor>],
12071 cx: &mut ViewContext<Self>,
12072 ) {
12073 self.highlight_background::<SearchWithinRange>(
12074 ranges,
12075 |colors| colors.editor_document_highlight_read_background,
12076 cx,
12077 )
12078 }
12079
12080 pub fn set_breadcrumb_header(&mut self, new_header: String) {
12081 self.breadcrumb_header = Some(new_header);
12082 }
12083
12084 pub fn clear_search_within_ranges(&mut self, cx: &mut ViewContext<Self>) {
12085 self.clear_background_highlights::<SearchWithinRange>(cx);
12086 }
12087
12088 pub fn highlight_background<T: 'static>(
12089 &mut self,
12090 ranges: &[Range<Anchor>],
12091 color_fetcher: fn(&ThemeColors) -> Hsla,
12092 cx: &mut ViewContext<Self>,
12093 ) {
12094 self.background_highlights
12095 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12096 self.scrollbar_marker_state.dirty = true;
12097 cx.notify();
12098 }
12099
12100 pub fn clear_background_highlights<T: 'static>(
12101 &mut self,
12102 cx: &mut ViewContext<Self>,
12103 ) -> Option<BackgroundHighlight> {
12104 let text_highlights = self.background_highlights.remove(&TypeId::of::<T>())?;
12105 if !text_highlights.1.is_empty() {
12106 self.scrollbar_marker_state.dirty = true;
12107 cx.notify();
12108 }
12109 Some(text_highlights)
12110 }
12111
12112 pub fn highlight_gutter<T: 'static>(
12113 &mut self,
12114 ranges: &[Range<Anchor>],
12115 color_fetcher: fn(&AppContext) -> Hsla,
12116 cx: &mut ViewContext<Self>,
12117 ) {
12118 self.gutter_highlights
12119 .insert(TypeId::of::<T>(), (color_fetcher, Arc::from(ranges)));
12120 cx.notify();
12121 }
12122
12123 pub fn clear_gutter_highlights<T: 'static>(
12124 &mut self,
12125 cx: &mut ViewContext<Self>,
12126 ) -> Option<GutterHighlight> {
12127 cx.notify();
12128 self.gutter_highlights.remove(&TypeId::of::<T>())
12129 }
12130
12131 #[cfg(feature = "test-support")]
12132 pub fn all_text_background_highlights(
12133 &mut self,
12134 cx: &mut ViewContext<Self>,
12135 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12136 let snapshot = self.snapshot(cx);
12137 let buffer = &snapshot.buffer_snapshot;
12138 let start = buffer.anchor_before(0);
12139 let end = buffer.anchor_after(buffer.len());
12140 let theme = cx.theme().colors();
12141 self.background_highlights_in_range(start..end, &snapshot, theme)
12142 }
12143
12144 #[cfg(feature = "test-support")]
12145 pub fn search_background_highlights(
12146 &mut self,
12147 cx: &mut ViewContext<Self>,
12148 ) -> Vec<Range<Point>> {
12149 let snapshot = self.buffer().read(cx).snapshot(cx);
12150
12151 let highlights = self
12152 .background_highlights
12153 .get(&TypeId::of::<items::BufferSearchHighlights>());
12154
12155 if let Some((_color, ranges)) = highlights {
12156 ranges
12157 .iter()
12158 .map(|range| range.start.to_point(&snapshot)..range.end.to_point(&snapshot))
12159 .collect_vec()
12160 } else {
12161 vec![]
12162 }
12163 }
12164
12165 fn document_highlights_for_position<'a>(
12166 &'a self,
12167 position: Anchor,
12168 buffer: &'a MultiBufferSnapshot,
12169 ) -> impl 'a + Iterator<Item = &'a Range<Anchor>> {
12170 let read_highlights = self
12171 .background_highlights
12172 .get(&TypeId::of::<DocumentHighlightRead>())
12173 .map(|h| &h.1);
12174 let write_highlights = self
12175 .background_highlights
12176 .get(&TypeId::of::<DocumentHighlightWrite>())
12177 .map(|h| &h.1);
12178 let left_position = position.bias_left(buffer);
12179 let right_position = position.bias_right(buffer);
12180 read_highlights
12181 .into_iter()
12182 .chain(write_highlights)
12183 .flat_map(move |ranges| {
12184 let start_ix = match ranges.binary_search_by(|probe| {
12185 let cmp = probe.end.cmp(&left_position, buffer);
12186 if cmp.is_ge() {
12187 Ordering::Greater
12188 } else {
12189 Ordering::Less
12190 }
12191 }) {
12192 Ok(i) | Err(i) => i,
12193 };
12194
12195 ranges[start_ix..]
12196 .iter()
12197 .take_while(move |range| range.start.cmp(&right_position, buffer).is_le())
12198 })
12199 }
12200
12201 pub fn has_background_highlights<T: 'static>(&self) -> bool {
12202 self.background_highlights
12203 .get(&TypeId::of::<T>())
12204 .map_or(false, |(_, highlights)| !highlights.is_empty())
12205 }
12206
12207 pub fn background_highlights_in_range(
12208 &self,
12209 search_range: Range<Anchor>,
12210 display_snapshot: &DisplaySnapshot,
12211 theme: &ThemeColors,
12212 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12213 let mut results = Vec::new();
12214 for (color_fetcher, ranges) in self.background_highlights.values() {
12215 let color = color_fetcher(theme);
12216 let start_ix = match ranges.binary_search_by(|probe| {
12217 let cmp = probe
12218 .end
12219 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12220 if cmp.is_gt() {
12221 Ordering::Greater
12222 } else {
12223 Ordering::Less
12224 }
12225 }) {
12226 Ok(i) | Err(i) => i,
12227 };
12228 for range in &ranges[start_ix..] {
12229 if range
12230 .start
12231 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12232 .is_ge()
12233 {
12234 break;
12235 }
12236
12237 let start = range.start.to_display_point(display_snapshot);
12238 let end = range.end.to_display_point(display_snapshot);
12239 results.push((start..end, color))
12240 }
12241 }
12242 results
12243 }
12244
12245 pub fn background_highlight_row_ranges<T: 'static>(
12246 &self,
12247 search_range: Range<Anchor>,
12248 display_snapshot: &DisplaySnapshot,
12249 count: usize,
12250 ) -> Vec<RangeInclusive<DisplayPoint>> {
12251 let mut results = Vec::new();
12252 let Some((_, ranges)) = self.background_highlights.get(&TypeId::of::<T>()) else {
12253 return vec![];
12254 };
12255
12256 let start_ix = match ranges.binary_search_by(|probe| {
12257 let cmp = probe
12258 .end
12259 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12260 if cmp.is_gt() {
12261 Ordering::Greater
12262 } else {
12263 Ordering::Less
12264 }
12265 }) {
12266 Ok(i) | Err(i) => i,
12267 };
12268 let mut push_region = |start: Option<Point>, end: Option<Point>| {
12269 if let (Some(start_display), Some(end_display)) = (start, end) {
12270 results.push(
12271 start_display.to_display_point(display_snapshot)
12272 ..=end_display.to_display_point(display_snapshot),
12273 );
12274 }
12275 };
12276 let mut start_row: Option<Point> = None;
12277 let mut end_row: Option<Point> = None;
12278 if ranges.len() > count {
12279 return Vec::new();
12280 }
12281 for range in &ranges[start_ix..] {
12282 if range
12283 .start
12284 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12285 .is_ge()
12286 {
12287 break;
12288 }
12289 let end = range.end.to_point(&display_snapshot.buffer_snapshot);
12290 if let Some(current_row) = &end_row {
12291 if end.row == current_row.row {
12292 continue;
12293 }
12294 }
12295 let start = range.start.to_point(&display_snapshot.buffer_snapshot);
12296 if start_row.is_none() {
12297 assert_eq!(end_row, None);
12298 start_row = Some(start);
12299 end_row = Some(end);
12300 continue;
12301 }
12302 if let Some(current_end) = end_row.as_mut() {
12303 if start.row > current_end.row + 1 {
12304 push_region(start_row, end_row);
12305 start_row = Some(start);
12306 end_row = Some(end);
12307 } else {
12308 // Merge two hunks.
12309 *current_end = end;
12310 }
12311 } else {
12312 unreachable!();
12313 }
12314 }
12315 // We might still have a hunk that was not rendered (if there was a search hit on the last line)
12316 push_region(start_row, end_row);
12317 results
12318 }
12319
12320 pub fn gutter_highlights_in_range(
12321 &self,
12322 search_range: Range<Anchor>,
12323 display_snapshot: &DisplaySnapshot,
12324 cx: &AppContext,
12325 ) -> Vec<(Range<DisplayPoint>, Hsla)> {
12326 let mut results = Vec::new();
12327 for (color_fetcher, ranges) in self.gutter_highlights.values() {
12328 let color = color_fetcher(cx);
12329 let start_ix = match ranges.binary_search_by(|probe| {
12330 let cmp = probe
12331 .end
12332 .cmp(&search_range.start, &display_snapshot.buffer_snapshot);
12333 if cmp.is_gt() {
12334 Ordering::Greater
12335 } else {
12336 Ordering::Less
12337 }
12338 }) {
12339 Ok(i) | Err(i) => i,
12340 };
12341 for range in &ranges[start_ix..] {
12342 if range
12343 .start
12344 .cmp(&search_range.end, &display_snapshot.buffer_snapshot)
12345 .is_ge()
12346 {
12347 break;
12348 }
12349
12350 let start = range.start.to_display_point(display_snapshot);
12351 let end = range.end.to_display_point(display_snapshot);
12352 results.push((start..end, color))
12353 }
12354 }
12355 results
12356 }
12357
12358 /// Get the text ranges corresponding to the redaction query
12359 pub fn redacted_ranges(
12360 &self,
12361 search_range: Range<Anchor>,
12362 display_snapshot: &DisplaySnapshot,
12363 cx: &WindowContext,
12364 ) -> Vec<Range<DisplayPoint>> {
12365 display_snapshot
12366 .buffer_snapshot
12367 .redacted_ranges(search_range, |file| {
12368 if let Some(file) = file {
12369 file.is_private()
12370 && EditorSettings::get(
12371 Some(SettingsLocation {
12372 worktree_id: file.worktree_id(cx),
12373 path: file.path().as_ref(),
12374 }),
12375 cx,
12376 )
12377 .redact_private_values
12378 } else {
12379 false
12380 }
12381 })
12382 .map(|range| {
12383 range.start.to_display_point(display_snapshot)
12384 ..range.end.to_display_point(display_snapshot)
12385 })
12386 .collect()
12387 }
12388
12389 pub fn highlight_text<T: 'static>(
12390 &mut self,
12391 ranges: Vec<Range<Anchor>>,
12392 style: HighlightStyle,
12393 cx: &mut ViewContext<Self>,
12394 ) {
12395 self.display_map.update(cx, |map, _| {
12396 map.highlight_text(TypeId::of::<T>(), ranges, style)
12397 });
12398 cx.notify();
12399 }
12400
12401 pub(crate) fn highlight_inlays<T: 'static>(
12402 &mut self,
12403 highlights: Vec<InlayHighlight>,
12404 style: HighlightStyle,
12405 cx: &mut ViewContext<Self>,
12406 ) {
12407 self.display_map.update(cx, |map, _| {
12408 map.highlight_inlays(TypeId::of::<T>(), highlights, style)
12409 });
12410 cx.notify();
12411 }
12412
12413 pub fn text_highlights<'a, T: 'static>(
12414 &'a self,
12415 cx: &'a AppContext,
12416 ) -> Option<(HighlightStyle, &'a [Range<Anchor>])> {
12417 self.display_map.read(cx).text_highlights(TypeId::of::<T>())
12418 }
12419
12420 pub fn clear_highlights<T: 'static>(&mut self, cx: &mut ViewContext<Self>) {
12421 let cleared = self
12422 .display_map
12423 .update(cx, |map, _| map.clear_highlights(TypeId::of::<T>()));
12424 if cleared {
12425 cx.notify();
12426 }
12427 }
12428
12429 pub fn show_local_cursors(&self, cx: &WindowContext) -> bool {
12430 (self.read_only(cx) || self.blink_manager.read(cx).visible())
12431 && self.focus_handle.is_focused(cx)
12432 }
12433
12434 pub fn set_show_cursor_when_unfocused(&mut self, is_enabled: bool, cx: &mut ViewContext<Self>) {
12435 self.show_cursor_when_unfocused = is_enabled;
12436 cx.notify();
12437 }
12438
12439 pub fn lsp_store(&self, cx: &AppContext) -> Option<Model<LspStore>> {
12440 self.project
12441 .as_ref()
12442 .map(|project| project.read(cx).lsp_store())
12443 }
12444
12445 fn on_buffer_changed(&mut self, _: Model<MultiBuffer>, cx: &mut ViewContext<Self>) {
12446 cx.notify();
12447 }
12448
12449 fn on_buffer_event(
12450 &mut self,
12451 multibuffer: Model<MultiBuffer>,
12452 event: &multi_buffer::Event,
12453 cx: &mut ViewContext<Self>,
12454 ) {
12455 match event {
12456 multi_buffer::Event::Edited {
12457 singleton_buffer_edited,
12458 edited_buffer: buffer_edited,
12459 } => {
12460 self.scrollbar_marker_state.dirty = true;
12461 self.active_indent_guides_state.dirty = true;
12462 self.refresh_active_diagnostics(cx);
12463 self.refresh_code_actions(cx);
12464 if self.has_active_inline_completion() {
12465 self.update_visible_inline_completion(cx);
12466 }
12467 if let Some(buffer) = buffer_edited {
12468 let buffer_id = buffer.read(cx).remote_id();
12469 if !self.registered_buffers.contains_key(&buffer_id) {
12470 if let Some(lsp_store) = self.lsp_store(cx) {
12471 lsp_store.update(cx, |lsp_store, cx| {
12472 self.registered_buffers.insert(
12473 buffer_id,
12474 lsp_store.register_buffer_with_language_servers(&buffer, cx),
12475 );
12476 })
12477 }
12478 }
12479 }
12480 cx.emit(EditorEvent::BufferEdited);
12481 cx.emit(SearchEvent::MatchesInvalidated);
12482 if *singleton_buffer_edited {
12483 if let Some(project) = &self.project {
12484 let project = project.read(cx);
12485 #[allow(clippy::mutable_key_type)]
12486 let languages_affected = multibuffer
12487 .read(cx)
12488 .all_buffers()
12489 .into_iter()
12490 .filter_map(|buffer| {
12491 let buffer = buffer.read(cx);
12492 let language = buffer.language()?;
12493 if project.is_local()
12494 && project
12495 .language_servers_for_local_buffer(buffer, cx)
12496 .count()
12497 == 0
12498 {
12499 None
12500 } else {
12501 Some(language)
12502 }
12503 })
12504 .cloned()
12505 .collect::<HashSet<_>>();
12506 if !languages_affected.is_empty() {
12507 self.refresh_inlay_hints(
12508 InlayHintRefreshReason::BufferEdited(languages_affected),
12509 cx,
12510 );
12511 }
12512 }
12513 }
12514
12515 let Some(project) = &self.project else { return };
12516 let (telemetry, is_via_ssh) = {
12517 let project = project.read(cx);
12518 let telemetry = project.client().telemetry().clone();
12519 let is_via_ssh = project.is_via_ssh();
12520 (telemetry, is_via_ssh)
12521 };
12522 refresh_linked_ranges(self, cx);
12523 telemetry.log_edit_event("editor", is_via_ssh);
12524 }
12525 multi_buffer::Event::ExcerptsAdded {
12526 buffer,
12527 predecessor,
12528 excerpts,
12529 } => {
12530 self.tasks_update_task = Some(self.refresh_runnables(cx));
12531 let buffer_id = buffer.read(cx).remote_id();
12532 if !self.diff_map.diff_bases.contains_key(&buffer_id) {
12533 if let Some(project) = &self.project {
12534 get_unstaged_changes_for_buffers(project, [buffer.clone()], cx);
12535 }
12536 }
12537 cx.emit(EditorEvent::ExcerptsAdded {
12538 buffer: buffer.clone(),
12539 predecessor: *predecessor,
12540 excerpts: excerpts.clone(),
12541 });
12542 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12543 }
12544 multi_buffer::Event::ExcerptsRemoved { ids } => {
12545 self.refresh_inlay_hints(InlayHintRefreshReason::ExcerptsRemoved(ids.clone()), cx);
12546 let buffer = self.buffer.read(cx);
12547 self.registered_buffers
12548 .retain(|buffer_id, _| buffer.buffer(*buffer_id).is_some());
12549 cx.emit(EditorEvent::ExcerptsRemoved { ids: ids.clone() })
12550 }
12551 multi_buffer::Event::ExcerptsEdited { ids } => {
12552 cx.emit(EditorEvent::ExcerptsEdited { ids: ids.clone() })
12553 }
12554 multi_buffer::Event::ExcerptsExpanded { ids } => {
12555 self.refresh_inlay_hints(InlayHintRefreshReason::NewLinesShown, cx);
12556 cx.emit(EditorEvent::ExcerptsExpanded { ids: ids.clone() })
12557 }
12558 multi_buffer::Event::Reparsed(buffer_id) => {
12559 self.tasks_update_task = Some(self.refresh_runnables(cx));
12560
12561 cx.emit(EditorEvent::Reparsed(*buffer_id));
12562 }
12563 multi_buffer::Event::LanguageChanged(buffer_id) => {
12564 linked_editing_ranges::refresh_linked_ranges(self, cx);
12565 cx.emit(EditorEvent::Reparsed(*buffer_id));
12566 cx.notify();
12567 }
12568 multi_buffer::Event::DirtyChanged => cx.emit(EditorEvent::DirtyChanged),
12569 multi_buffer::Event::Saved => cx.emit(EditorEvent::Saved),
12570 multi_buffer::Event::FileHandleChanged | multi_buffer::Event::Reloaded => {
12571 cx.emit(EditorEvent::TitleChanged)
12572 }
12573 // multi_buffer::Event::DiffBaseChanged => {
12574 // self.scrollbar_marker_state.dirty = true;
12575 // cx.emit(EditorEvent::DiffBaseChanged);
12576 // cx.notify();
12577 // }
12578 multi_buffer::Event::Closed => cx.emit(EditorEvent::Closed),
12579 multi_buffer::Event::DiagnosticsUpdated => {
12580 self.refresh_active_diagnostics(cx);
12581 self.scrollbar_marker_state.dirty = true;
12582 cx.notify();
12583 }
12584 _ => {}
12585 };
12586 }
12587
12588 fn on_display_map_changed(&mut self, _: Model<DisplayMap>, cx: &mut ViewContext<Self>) {
12589 cx.notify();
12590 }
12591
12592 fn settings_changed(&mut self, cx: &mut ViewContext<Self>) {
12593 self.tasks_update_task = Some(self.refresh_runnables(cx));
12594 self.refresh_inline_completion(true, false, cx);
12595 self.refresh_inlay_hints(
12596 InlayHintRefreshReason::SettingsChange(inlay_hint_settings(
12597 self.selections.newest_anchor().head(),
12598 &self.buffer.read(cx).snapshot(cx),
12599 cx,
12600 )),
12601 cx,
12602 );
12603
12604 let old_cursor_shape = self.cursor_shape;
12605
12606 {
12607 let editor_settings = EditorSettings::get_global(cx);
12608 self.scroll_manager.vertical_scroll_margin = editor_settings.vertical_scroll_margin;
12609 self.show_breadcrumbs = editor_settings.toolbar.breadcrumbs;
12610 self.cursor_shape = editor_settings.cursor_shape.unwrap_or_default();
12611 }
12612
12613 if old_cursor_shape != self.cursor_shape {
12614 cx.emit(EditorEvent::CursorShapeChanged);
12615 }
12616
12617 let project_settings = ProjectSettings::get_global(cx);
12618 self.serialize_dirty_buffers = project_settings.session.restore_unsaved_buffers;
12619
12620 if self.mode == EditorMode::Full {
12621 let inline_blame_enabled = project_settings.git.inline_blame_enabled();
12622 if self.git_blame_inline_enabled != inline_blame_enabled {
12623 self.toggle_git_blame_inline_internal(false, cx);
12624 }
12625 }
12626
12627 cx.notify();
12628 }
12629
12630 pub fn set_searchable(&mut self, searchable: bool) {
12631 self.searchable = searchable;
12632 }
12633
12634 pub fn searchable(&self) -> bool {
12635 self.searchable
12636 }
12637
12638 fn open_proposed_changes_editor(
12639 &mut self,
12640 _: &OpenProposedChangesEditor,
12641 cx: &mut ViewContext<Self>,
12642 ) {
12643 let Some(workspace) = self.workspace() else {
12644 cx.propagate();
12645 return;
12646 };
12647
12648 let selections = self.selections.all::<usize>(cx);
12649 let multi_buffer = self.buffer.read(cx);
12650 let multi_buffer_snapshot = multi_buffer.snapshot(cx);
12651 let mut new_selections_by_buffer = HashMap::default();
12652 for selection in selections {
12653 for (excerpt, range) in
12654 multi_buffer_snapshot.range_to_buffer_ranges(selection.start..selection.end)
12655 {
12656 let mut range = range.to_point(excerpt.buffer());
12657 range.start.column = 0;
12658 range.end.column = excerpt.buffer().line_len(range.end.row);
12659 new_selections_by_buffer
12660 .entry(multi_buffer.buffer(excerpt.buffer_id()).unwrap())
12661 .or_insert(Vec::new())
12662 .push(range)
12663 }
12664 }
12665
12666 let proposed_changes_buffers = new_selections_by_buffer
12667 .into_iter()
12668 .map(|(buffer, ranges)| ProposedChangeLocation { buffer, ranges })
12669 .collect::<Vec<_>>();
12670 let proposed_changes_editor = cx.new_view(|cx| {
12671 ProposedChangesEditor::new(
12672 "Proposed changes",
12673 proposed_changes_buffers,
12674 self.project.clone(),
12675 cx,
12676 )
12677 });
12678
12679 cx.window_context().defer(move |cx| {
12680 workspace.update(cx, |workspace, cx| {
12681 workspace.active_pane().update(cx, |pane, cx| {
12682 pane.add_item(Box::new(proposed_changes_editor), true, true, None, cx);
12683 });
12684 });
12685 });
12686 }
12687
12688 pub fn open_excerpts_in_split(&mut self, _: &OpenExcerptsSplit, cx: &mut ViewContext<Self>) {
12689 self.open_excerpts_common(None, true, cx)
12690 }
12691
12692 pub fn open_excerpts(&mut self, _: &OpenExcerpts, cx: &mut ViewContext<Self>) {
12693 self.open_excerpts_common(None, false, cx)
12694 }
12695
12696 fn open_excerpts_common(
12697 &mut self,
12698 jump_data: Option<JumpData>,
12699 split: bool,
12700 cx: &mut ViewContext<Self>,
12701 ) {
12702 let Some(workspace) = self.workspace() else {
12703 cx.propagate();
12704 return;
12705 };
12706
12707 if self.buffer.read(cx).is_singleton() {
12708 cx.propagate();
12709 return;
12710 }
12711
12712 let mut new_selections_by_buffer = HashMap::default();
12713 match &jump_data {
12714 Some(JumpData::MultiBufferPoint {
12715 excerpt_id,
12716 position,
12717 anchor,
12718 line_offset_from_top,
12719 }) => {
12720 let multi_buffer_snapshot = self.buffer.read(cx).snapshot(cx);
12721 if let Some(buffer) = multi_buffer_snapshot
12722 .buffer_id_for_excerpt(*excerpt_id)
12723 .and_then(|buffer_id| self.buffer.read(cx).buffer(buffer_id))
12724 {
12725 let buffer_snapshot = buffer.read(cx).snapshot();
12726 let jump_to_point = if buffer_snapshot.can_resolve(anchor) {
12727 language::ToPoint::to_point(anchor, &buffer_snapshot)
12728 } else {
12729 buffer_snapshot.clip_point(*position, Bias::Left)
12730 };
12731 let jump_to_offset = buffer_snapshot.point_to_offset(jump_to_point);
12732 new_selections_by_buffer.insert(
12733 buffer,
12734 (
12735 vec![jump_to_offset..jump_to_offset],
12736 Some(*line_offset_from_top),
12737 ),
12738 );
12739 }
12740 }
12741 Some(JumpData::MultiBufferRow {
12742 row,
12743 line_offset_from_top,
12744 }) => {
12745 let point = MultiBufferPoint::new(row.0, 0);
12746 if let Some((buffer, buffer_point, _)) =
12747 self.buffer.read(cx).point_to_buffer_point(point, cx)
12748 {
12749 let buffer_offset = buffer.read(cx).point_to_offset(buffer_point);
12750 new_selections_by_buffer
12751 .entry(buffer)
12752 .or_insert((Vec::new(), Some(*line_offset_from_top)))
12753 .0
12754 .push(buffer_offset..buffer_offset)
12755 }
12756 }
12757 None => {
12758 let selections = self.selections.all::<usize>(cx);
12759 let multi_buffer = self.buffer.read(cx);
12760 for selection in selections {
12761 for (excerpt, mut range) in multi_buffer
12762 .snapshot(cx)
12763 .range_to_buffer_ranges(selection.range())
12764 {
12765 // When editing branch buffers, jump to the corresponding location
12766 // in their base buffer.
12767 let mut buffer_handle = multi_buffer.buffer(excerpt.buffer_id()).unwrap();
12768 let buffer = buffer_handle.read(cx);
12769 if let Some(base_buffer) = buffer.base_buffer() {
12770 range = buffer.range_to_version(range, &base_buffer.read(cx).version());
12771 buffer_handle = base_buffer;
12772 }
12773
12774 if selection.reversed {
12775 mem::swap(&mut range.start, &mut range.end);
12776 }
12777 new_selections_by_buffer
12778 .entry(buffer_handle)
12779 .or_insert((Vec::new(), None))
12780 .0
12781 .push(range)
12782 }
12783 }
12784 }
12785 }
12786
12787 if new_selections_by_buffer.is_empty() {
12788 return;
12789 }
12790
12791 // We defer the pane interaction because we ourselves are a workspace item
12792 // and activating a new item causes the pane to call a method on us reentrantly,
12793 // which panics if we're on the stack.
12794 cx.window_context().defer(move |cx| {
12795 workspace.update(cx, |workspace, cx| {
12796 let pane = if split {
12797 workspace.adjacent_pane(cx)
12798 } else {
12799 workspace.active_pane().clone()
12800 };
12801
12802 for (buffer, (ranges, scroll_offset)) in new_selections_by_buffer {
12803 let editor = buffer
12804 .read(cx)
12805 .file()
12806 .is_none()
12807 .then(|| {
12808 // Handle file-less buffers separately: those are not really the project items, so won't have a project path or entity id,
12809 // so `workspace.open_project_item` will never find them, always opening a new editor.
12810 // Instead, we try to activate the existing editor in the pane first.
12811 let (editor, pane_item_index) =
12812 pane.read(cx).items().enumerate().find_map(|(i, item)| {
12813 let editor = item.downcast::<Editor>()?;
12814 let singleton_buffer =
12815 editor.read(cx).buffer().read(cx).as_singleton()?;
12816 if singleton_buffer == buffer {
12817 Some((editor, i))
12818 } else {
12819 None
12820 }
12821 })?;
12822 pane.update(cx, |pane, cx| {
12823 pane.activate_item(pane_item_index, true, true, cx)
12824 });
12825 Some(editor)
12826 })
12827 .flatten()
12828 .unwrap_or_else(|| {
12829 workspace.open_project_item::<Self>(
12830 pane.clone(),
12831 buffer,
12832 true,
12833 true,
12834 cx,
12835 )
12836 });
12837
12838 editor.update(cx, |editor, cx| {
12839 let autoscroll = match scroll_offset {
12840 Some(scroll_offset) => Autoscroll::top_relative(scroll_offset as usize),
12841 None => Autoscroll::newest(),
12842 };
12843 let nav_history = editor.nav_history.take();
12844 editor.change_selections(Some(autoscroll), cx, |s| {
12845 s.select_ranges(ranges);
12846 });
12847 editor.nav_history = nav_history;
12848 });
12849 }
12850 })
12851 });
12852 }
12853
12854 fn marked_text_ranges(&self, cx: &AppContext) -> Option<Vec<Range<OffsetUtf16>>> {
12855 let snapshot = self.buffer.read(cx).read(cx);
12856 let (_, ranges) = self.text_highlights::<InputComposition>(cx)?;
12857 Some(
12858 ranges
12859 .iter()
12860 .map(move |range| {
12861 range.start.to_offset_utf16(&snapshot)..range.end.to_offset_utf16(&snapshot)
12862 })
12863 .collect(),
12864 )
12865 }
12866
12867 fn selection_replacement_ranges(
12868 &self,
12869 range: Range<OffsetUtf16>,
12870 cx: &mut AppContext,
12871 ) -> Vec<Range<OffsetUtf16>> {
12872 let selections = self.selections.all::<OffsetUtf16>(cx);
12873 let newest_selection = selections
12874 .iter()
12875 .max_by_key(|selection| selection.id)
12876 .unwrap();
12877 let start_delta = range.start.0 as isize - newest_selection.start.0 as isize;
12878 let end_delta = range.end.0 as isize - newest_selection.end.0 as isize;
12879 let snapshot = self.buffer.read(cx).read(cx);
12880 selections
12881 .into_iter()
12882 .map(|mut selection| {
12883 selection.start.0 =
12884 (selection.start.0 as isize).saturating_add(start_delta) as usize;
12885 selection.end.0 = (selection.end.0 as isize).saturating_add(end_delta) as usize;
12886 snapshot.clip_offset_utf16(selection.start, Bias::Left)
12887 ..snapshot.clip_offset_utf16(selection.end, Bias::Right)
12888 })
12889 .collect()
12890 }
12891
12892 fn report_editor_event(
12893 &self,
12894 event_type: &'static str,
12895 file_extension: Option<String>,
12896 cx: &AppContext,
12897 ) {
12898 if cfg!(any(test, feature = "test-support")) {
12899 return;
12900 }
12901
12902 let Some(project) = &self.project else { return };
12903
12904 // If None, we are in a file without an extension
12905 let file = self
12906 .buffer
12907 .read(cx)
12908 .as_singleton()
12909 .and_then(|b| b.read(cx).file());
12910 let file_extension = file_extension.or(file
12911 .as_ref()
12912 .and_then(|file| Path::new(file.file_name(cx)).extension())
12913 .and_then(|e| e.to_str())
12914 .map(|a| a.to_string()));
12915
12916 let vim_mode = cx
12917 .global::<SettingsStore>()
12918 .raw_user_settings()
12919 .get("vim_mode")
12920 == Some(&serde_json::Value::Bool(true));
12921
12922 let copilot_enabled = all_language_settings(file, cx).inline_completions.provider
12923 == language::language_settings::InlineCompletionProvider::Copilot;
12924 let copilot_enabled_for_language = self
12925 .buffer
12926 .read(cx)
12927 .settings_at(0, cx)
12928 .show_inline_completions;
12929
12930 let project = project.read(cx);
12931 telemetry::event!(
12932 event_type,
12933 file_extension,
12934 vim_mode,
12935 copilot_enabled,
12936 copilot_enabled_for_language,
12937 is_via_ssh = project.is_via_ssh(),
12938 );
12939 }
12940
12941 /// Copy the highlighted chunks to the clipboard as JSON. The format is an array of lines,
12942 /// with each line being an array of {text, highlight} objects.
12943 fn copy_highlight_json(&mut self, _: &CopyHighlightJson, cx: &mut ViewContext<Self>) {
12944 let Some(buffer) = self.buffer.read(cx).as_singleton() else {
12945 return;
12946 };
12947
12948 #[derive(Serialize)]
12949 struct Chunk<'a> {
12950 text: String,
12951 highlight: Option<&'a str>,
12952 }
12953
12954 let snapshot = buffer.read(cx).snapshot();
12955 let range = self
12956 .selected_text_range(false, cx)
12957 .and_then(|selection| {
12958 if selection.range.is_empty() {
12959 None
12960 } else {
12961 Some(selection.range)
12962 }
12963 })
12964 .unwrap_or_else(|| 0..snapshot.len());
12965
12966 let chunks = snapshot.chunks(range, true);
12967 let mut lines = Vec::new();
12968 let mut line: VecDeque<Chunk> = VecDeque::new();
12969
12970 let Some(style) = self.style.as_ref() else {
12971 return;
12972 };
12973
12974 for chunk in chunks {
12975 let highlight = chunk
12976 .syntax_highlight_id
12977 .and_then(|id| id.name(&style.syntax));
12978 let mut chunk_lines = chunk.text.split('\n').peekable();
12979 while let Some(text) = chunk_lines.next() {
12980 let mut merged_with_last_token = false;
12981 if let Some(last_token) = line.back_mut() {
12982 if last_token.highlight == highlight {
12983 last_token.text.push_str(text);
12984 merged_with_last_token = true;
12985 }
12986 }
12987
12988 if !merged_with_last_token {
12989 line.push_back(Chunk {
12990 text: text.into(),
12991 highlight,
12992 });
12993 }
12994
12995 if chunk_lines.peek().is_some() {
12996 if line.len() > 1 && line.front().unwrap().text.is_empty() {
12997 line.pop_front();
12998 }
12999 if line.len() > 1 && line.back().unwrap().text.is_empty() {
13000 line.pop_back();
13001 }
13002
13003 lines.push(mem::take(&mut line));
13004 }
13005 }
13006 }
13007
13008 let Some(lines) = serde_json::to_string_pretty(&lines).log_err() else {
13009 return;
13010 };
13011 cx.write_to_clipboard(ClipboardItem::new_string(lines));
13012 }
13013
13014 pub fn open_context_menu(&mut self, _: &OpenContextMenu, cx: &mut ViewContext<Self>) {
13015 self.request_autoscroll(Autoscroll::newest(), cx);
13016 let position = self.selections.newest_display(cx).start;
13017 mouse_context_menu::deploy_context_menu(self, None, position, cx);
13018 }
13019
13020 pub fn inlay_hint_cache(&self) -> &InlayHintCache {
13021 &self.inlay_hint_cache
13022 }
13023
13024 pub fn replay_insert_event(
13025 &mut self,
13026 text: &str,
13027 relative_utf16_range: Option<Range<isize>>,
13028 cx: &mut ViewContext<Self>,
13029 ) {
13030 if !self.input_enabled {
13031 cx.emit(EditorEvent::InputIgnored { text: text.into() });
13032 return;
13033 }
13034 if let Some(relative_utf16_range) = relative_utf16_range {
13035 let selections = self.selections.all::<OffsetUtf16>(cx);
13036 self.change_selections(None, cx, |s| {
13037 let new_ranges = selections.into_iter().map(|range| {
13038 let start = OffsetUtf16(
13039 range
13040 .head()
13041 .0
13042 .saturating_add_signed(relative_utf16_range.start),
13043 );
13044 let end = OffsetUtf16(
13045 range
13046 .head()
13047 .0
13048 .saturating_add_signed(relative_utf16_range.end),
13049 );
13050 start..end
13051 });
13052 s.select_ranges(new_ranges);
13053 });
13054 }
13055
13056 self.handle_input(text, cx);
13057 }
13058
13059 pub fn supports_inlay_hints(&self, cx: &AppContext) -> bool {
13060 let Some(provider) = self.semantics_provider.as_ref() else {
13061 return false;
13062 };
13063
13064 let mut supports = false;
13065 self.buffer().read(cx).for_each_buffer(|buffer| {
13066 supports |= provider.supports_inlay_hints(buffer, cx);
13067 });
13068 supports
13069 }
13070
13071 pub fn focus(&self, cx: &mut WindowContext) {
13072 cx.focus(&self.focus_handle)
13073 }
13074
13075 pub fn is_focused(&self, cx: &WindowContext) -> bool {
13076 self.focus_handle.is_focused(cx)
13077 }
13078
13079 fn handle_focus(&mut self, cx: &mut ViewContext<Self>) {
13080 cx.emit(EditorEvent::Focused);
13081
13082 if let Some(descendant) = self
13083 .last_focused_descendant
13084 .take()
13085 .and_then(|descendant| descendant.upgrade())
13086 {
13087 cx.focus(&descendant);
13088 } else {
13089 if let Some(blame) = self.blame.as_ref() {
13090 blame.update(cx, GitBlame::focus)
13091 }
13092
13093 self.blink_manager.update(cx, BlinkManager::enable);
13094 self.show_cursor_names(cx);
13095 self.buffer.update(cx, |buffer, cx| {
13096 buffer.finalize_last_transaction(cx);
13097 if self.leader_peer_id.is_none() {
13098 buffer.set_active_selections(
13099 &self.selections.disjoint_anchors(),
13100 self.selections.line_mode,
13101 self.cursor_shape,
13102 cx,
13103 );
13104 }
13105 });
13106 }
13107 }
13108
13109 fn handle_focus_in(&mut self, cx: &mut ViewContext<Self>) {
13110 cx.emit(EditorEvent::FocusedIn)
13111 }
13112
13113 fn handle_focus_out(&mut self, event: FocusOutEvent, _cx: &mut ViewContext<Self>) {
13114 if event.blurred != self.focus_handle {
13115 self.last_focused_descendant = Some(event.blurred);
13116 }
13117 }
13118
13119 pub fn handle_blur(&mut self, cx: &mut ViewContext<Self>) {
13120 self.blink_manager.update(cx, BlinkManager::disable);
13121 self.buffer
13122 .update(cx, |buffer, cx| buffer.remove_active_selections(cx));
13123
13124 if let Some(blame) = self.blame.as_ref() {
13125 blame.update(cx, GitBlame::blur)
13126 }
13127 if !self.hover_state.focused(cx) {
13128 hide_hover(self, cx);
13129 }
13130
13131 self.hide_context_menu(cx);
13132 cx.emit(EditorEvent::Blurred);
13133 cx.notify();
13134 }
13135
13136 pub fn register_action<A: Action>(
13137 &mut self,
13138 listener: impl Fn(&A, &mut WindowContext) + 'static,
13139 ) -> Subscription {
13140 let id = self.next_editor_action_id.post_inc();
13141 let listener = Arc::new(listener);
13142 self.editor_actions.borrow_mut().insert(
13143 id,
13144 Box::new(move |cx| {
13145 let cx = cx.window_context();
13146 let listener = listener.clone();
13147 cx.on_action(TypeId::of::<A>(), move |action, phase, cx| {
13148 let action = action.downcast_ref().unwrap();
13149 if phase == DispatchPhase::Bubble {
13150 listener(action, cx)
13151 }
13152 })
13153 }),
13154 );
13155
13156 let editor_actions = self.editor_actions.clone();
13157 Subscription::new(move || {
13158 editor_actions.borrow_mut().remove(&id);
13159 })
13160 }
13161
13162 pub fn file_header_size(&self) -> u32 {
13163 FILE_HEADER_HEIGHT
13164 }
13165
13166 pub fn revert(
13167 &mut self,
13168 revert_changes: HashMap<BufferId, Vec<(Range<text::Anchor>, Rope)>>,
13169 cx: &mut ViewContext<Self>,
13170 ) {
13171 self.buffer().update(cx, |multi_buffer, cx| {
13172 for (buffer_id, changes) in revert_changes {
13173 if let Some(buffer) = multi_buffer.buffer(buffer_id) {
13174 buffer.update(cx, |buffer, cx| {
13175 buffer.edit(
13176 changes.into_iter().map(|(range, text)| {
13177 (range, text.to_string().map(Arc::<str>::from))
13178 }),
13179 None,
13180 cx,
13181 );
13182 });
13183 }
13184 }
13185 });
13186 self.change_selections(None, cx, |selections| selections.refresh());
13187 }
13188
13189 pub fn to_pixel_point(
13190 &mut self,
13191 source: multi_buffer::Anchor,
13192 editor_snapshot: &EditorSnapshot,
13193 cx: &mut ViewContext<Self>,
13194 ) -> Option<gpui::Point<Pixels>> {
13195 let source_point = source.to_display_point(editor_snapshot);
13196 self.display_to_pixel_point(source_point, editor_snapshot, cx)
13197 }
13198
13199 pub fn display_to_pixel_point(
13200 &self,
13201 source: DisplayPoint,
13202 editor_snapshot: &EditorSnapshot,
13203 cx: &WindowContext,
13204 ) -> Option<gpui::Point<Pixels>> {
13205 let line_height = self.style()?.text.line_height_in_pixels(cx.rem_size());
13206 let text_layout_details = self.text_layout_details(cx);
13207 let scroll_top = text_layout_details
13208 .scroll_anchor
13209 .scroll_position(editor_snapshot)
13210 .y;
13211
13212 if source.row().as_f32() < scroll_top.floor() {
13213 return None;
13214 }
13215 let source_x = editor_snapshot.x_for_display_point(source, &text_layout_details);
13216 let source_y = line_height * (source.row().as_f32() - scroll_top);
13217 Some(gpui::Point::new(source_x, source_y))
13218 }
13219
13220 pub fn has_active_completions_menu(&self) -> bool {
13221 self.context_menu.borrow().as_ref().map_or(false, |menu| {
13222 menu.visible() && matches!(menu, CodeContextMenu::Completions(_))
13223 })
13224 }
13225
13226 pub fn register_addon<T: Addon>(&mut self, instance: T) {
13227 self.addons
13228 .insert(std::any::TypeId::of::<T>(), Box::new(instance));
13229 }
13230
13231 pub fn unregister_addon<T: Addon>(&mut self) {
13232 self.addons.remove(&std::any::TypeId::of::<T>());
13233 }
13234
13235 pub fn addon<T: Addon>(&self) -> Option<&T> {
13236 let type_id = std::any::TypeId::of::<T>();
13237 self.addons
13238 .get(&type_id)
13239 .and_then(|item| item.to_any().downcast_ref::<T>())
13240 }
13241
13242 pub fn add_change_set(
13243 &mut self,
13244 change_set: Model<BufferChangeSet>,
13245 cx: &mut ViewContext<Self>,
13246 ) {
13247 self.diff_map.add_change_set(change_set, cx);
13248 }
13249
13250 fn character_size(&self, cx: &mut ViewContext<Self>) -> gpui::Point<Pixels> {
13251 let text_layout_details = self.text_layout_details(cx);
13252 let style = &text_layout_details.editor_style;
13253 let font_id = cx.text_system().resolve_font(&style.text.font());
13254 let font_size = style.text.font_size.to_pixels(cx.rem_size());
13255 let line_height = style.text.line_height_in_pixels(cx.rem_size());
13256
13257 let em_width = cx
13258 .text_system()
13259 .typographic_bounds(font_id, font_size, 'm')
13260 .unwrap()
13261 .size
13262 .width;
13263
13264 gpui::Point::new(em_width, line_height)
13265 }
13266}
13267
13268fn get_unstaged_changes_for_buffers(
13269 project: &Model<Project>,
13270 buffers: impl IntoIterator<Item = Model<Buffer>>,
13271 cx: &mut ViewContext<Editor>,
13272) {
13273 let mut tasks = Vec::new();
13274 project.update(cx, |project, cx| {
13275 for buffer in buffers {
13276 tasks.push(project.open_unstaged_changes(buffer.clone(), cx))
13277 }
13278 });
13279 cx.spawn(|this, mut cx| async move {
13280 let change_sets = futures::future::join_all(tasks).await;
13281 this.update(&mut cx, |this, cx| {
13282 for change_set in change_sets {
13283 if let Some(change_set) = change_set.log_err() {
13284 this.diff_map.add_change_set(change_set, cx);
13285 }
13286 }
13287 })
13288 .ok();
13289 })
13290 .detach();
13291}
13292
13293fn char_len_with_expanded_tabs(offset: usize, text: &str, tab_size: NonZeroU32) -> usize {
13294 let tab_size = tab_size.get() as usize;
13295 let mut width = offset;
13296
13297 for ch in text.chars() {
13298 width += if ch == '\t' {
13299 tab_size - (width % tab_size)
13300 } else {
13301 1
13302 };
13303 }
13304
13305 width - offset
13306}
13307
13308#[cfg(test)]
13309mod tests {
13310 use super::*;
13311
13312 #[test]
13313 fn test_string_size_with_expanded_tabs() {
13314 let nz = |val| NonZeroU32::new(val).unwrap();
13315 assert_eq!(char_len_with_expanded_tabs(0, "", nz(4)), 0);
13316 assert_eq!(char_len_with_expanded_tabs(0, "hello", nz(4)), 5);
13317 assert_eq!(char_len_with_expanded_tabs(0, "\thello", nz(4)), 9);
13318 assert_eq!(char_len_with_expanded_tabs(0, "abc\tab", nz(4)), 6);
13319 assert_eq!(char_len_with_expanded_tabs(0, "hello\t", nz(4)), 8);
13320 assert_eq!(char_len_with_expanded_tabs(0, "\t\t", nz(8)), 16);
13321 assert_eq!(char_len_with_expanded_tabs(0, "x\t", nz(8)), 8);
13322 assert_eq!(char_len_with_expanded_tabs(7, "x\t", nz(8)), 9);
13323 }
13324}
13325
13326/// Tokenizes a string into runs of text that should stick together, or that is whitespace.
13327struct WordBreakingTokenizer<'a> {
13328 input: &'a str,
13329}
13330
13331impl<'a> WordBreakingTokenizer<'a> {
13332 fn new(input: &'a str) -> Self {
13333 Self { input }
13334 }
13335}
13336
13337fn is_char_ideographic(ch: char) -> bool {
13338 use unicode_script::Script::*;
13339 use unicode_script::UnicodeScript;
13340 matches!(ch.script(), Han | Tangut | Yi)
13341}
13342
13343fn is_grapheme_ideographic(text: &str) -> bool {
13344 text.chars().any(is_char_ideographic)
13345}
13346
13347fn is_grapheme_whitespace(text: &str) -> bool {
13348 text.chars().any(|x| x.is_whitespace())
13349}
13350
13351fn should_stay_with_preceding_ideograph(text: &str) -> bool {
13352 text.chars().next().map_or(false, |ch| {
13353 matches!(ch, '。' | '、' | '，' | '？' | '！' | '：' | '；' | '…')
13354 })
13355}
13356
13357#[derive(PartialEq, Eq, Debug, Clone, Copy)]
13358struct WordBreakToken<'a> {
13359 token: &'a str,
13360 grapheme_len: usize,
13361 is_whitespace: bool,
13362}
13363
13364impl<'a> Iterator for WordBreakingTokenizer<'a> {
13365 /// Yields a span, the count of graphemes in the token, and whether it was
13366 /// whitespace. Note that it also breaks at word boundaries.
13367 type Item = WordBreakToken<'a>;
13368
13369 fn next(&mut self) -> Option<Self::Item> {
13370 use unicode_segmentation::UnicodeSegmentation;
13371 if self.input.is_empty() {
13372 return None;
13373 }
13374
13375 let mut iter = self.input.graphemes(true).peekable();
13376 let mut offset = 0;
13377 let mut graphemes = 0;
13378 if let Some(first_grapheme) = iter.next() {
13379 let is_whitespace = is_grapheme_whitespace(first_grapheme);
13380 offset += first_grapheme.len();
13381 graphemes += 1;
13382 if is_grapheme_ideographic(first_grapheme) && !is_whitespace {
13383 if let Some(grapheme) = iter.peek().copied() {
13384 if should_stay_with_preceding_ideograph(grapheme) {
13385 offset += grapheme.len();
13386 graphemes += 1;
13387 }
13388 }
13389 } else {
13390 let mut words = self.input[offset..].split_word_bound_indices().peekable();
13391 let mut next_word_bound = words.peek().copied();
13392 if next_word_bound.map_or(false, |(i, _)| i == 0) {
13393 next_word_bound = words.next();
13394 }
13395 while let Some(grapheme) = iter.peek().copied() {
13396 if next_word_bound.map_or(false, |(i, _)| i == offset) {
13397 break;
13398 };
13399 if is_grapheme_whitespace(grapheme) != is_whitespace {
13400 break;
13401 };
13402 offset += grapheme.len();
13403 graphemes += 1;
13404 iter.next();
13405 }
13406 }
13407 let token = &self.input[..offset];
13408 self.input = &self.input[offset..];
13409 if is_whitespace {
13410 Some(WordBreakToken {
13411 token: " ",
13412 grapheme_len: 1,
13413 is_whitespace: true,
13414 })
13415 } else {
13416 Some(WordBreakToken {
13417 token,
13418 grapheme_len: graphemes,
13419 is_whitespace: false,
13420 })
13421 }
13422 } else {
13423 None
13424 }
13425 }
13426}
13427
13428#[test]
13429fn test_word_breaking_tokenizer() {
13430 let tests: &[(&str, &[(&str, usize, bool)])] = &[
13431 ("", &[]),
13432 (" ", &[(" ", 1, true)]),
13433 ("Ʒ", &[("Ʒ", 1, false)]),
13434 ("Ǽ", &[("Ǽ", 1, false)]),
13435 ("⋑", &[("⋑", 1, false)]),
13436 ("⋑⋑", &[("⋑⋑", 2, false)]),
13437 (
13438 "原理，进而",
13439 &[
13440 ("原", 1, false),
13441 ("理，", 2, false),
13442 ("进", 1, false),
13443 ("而", 1, false),
13444 ],
13445 ),
13446 (
13447 "hello world",
13448 &[("hello", 5, false), (" ", 1, true), ("world", 5, false)],
13449 ),
13450 (
13451 "hello, world",
13452 &[("hello,", 6, false), (" ", 1, true), ("world", 5, false)],
13453 ),
13454 (
13455 " hello world",
13456 &[
13457 (" ", 1, true),
13458 ("hello", 5, false),
13459 (" ", 1, true),
13460 ("world", 5, false),
13461 ],
13462 ),
13463 (
13464 "这是什么 \n 钢笔",
13465 &[
13466 ("这", 1, false),
13467 ("是", 1, false),
13468 ("什", 1, false),
13469 ("么", 1, false),
13470 (" ", 1, true),
13471 ("钢", 1, false),
13472 ("笔", 1, false),
13473 ],
13474 ),
13475 (" mutton", &[(" ", 1, true), ("mutton", 6, false)]),
13476 ];
13477
13478 for (input, result) in tests {
13479 assert_eq!(
13480 WordBreakingTokenizer::new(input).collect::<Vec<_>>(),
13481 result
13482 .iter()
13483 .copied()
13484 .map(|(token, grapheme_len, is_whitespace)| WordBreakToken {
13485 token,
13486 grapheme_len,
13487 is_whitespace,
13488 })
13489 .collect::<Vec<_>>()
13490 );
13491 }
13492}
13493
13494fn wrap_with_prefix(
13495 line_prefix: String,
13496 unwrapped_text: String,
13497 wrap_column: usize,
13498 tab_size: NonZeroU32,
13499) -> String {
13500 let line_prefix_len = char_len_with_expanded_tabs(0, &line_prefix, tab_size);
13501 let mut wrapped_text = String::new();
13502 let mut current_line = line_prefix.clone();
13503
13504 let tokenizer = WordBreakingTokenizer::new(&unwrapped_text);
13505 let mut current_line_len = line_prefix_len;
13506 for WordBreakToken {
13507 token,
13508 grapheme_len,
13509 is_whitespace,
13510 } in tokenizer
13511 {
13512 if current_line_len + grapheme_len > wrap_column && current_line_len != line_prefix_len {
13513 wrapped_text.push_str(current_line.trim_end());
13514 wrapped_text.push('\n');
13515 current_line.truncate(line_prefix.len());
13516 current_line_len = line_prefix_len;
13517 if !is_whitespace {
13518 current_line.push_str(token);
13519 current_line_len += grapheme_len;
13520 }
13521 } else if !is_whitespace {
13522 current_line.push_str(token);
13523 current_line_len += grapheme_len;
13524 } else if current_line_len != line_prefix_len {
13525 current_line.push(' ');
13526 current_line_len += 1;
13527 }
13528 }
13529
13530 if !current_line.is_empty() {
13531 wrapped_text.push_str(¤t_line);
13532 }
13533 wrapped_text
13534}
13535
13536#[test]
13537fn test_wrap_with_prefix() {
13538 assert_eq!(
13539 wrap_with_prefix(
13540 "# ".to_string(),
13541 "abcdefg".to_string(),
13542 4,
13543 NonZeroU32::new(4).unwrap()
13544 ),
13545 "# abcdefg"
13546 );
13547 assert_eq!(
13548 wrap_with_prefix(
13549 "".to_string(),
13550 "\thello world".to_string(),
13551 8,
13552 NonZeroU32::new(4).unwrap()
13553 ),
13554 "hello\nworld"
13555 );
13556 assert_eq!(
13557 wrap_with_prefix(
13558 "// ".to_string(),
13559 "xx \nyy zz aa bb cc".to_string(),
13560 12,
13561 NonZeroU32::new(4).unwrap()
13562 ),
13563 "// xx yy zz\n// aa bb cc"
13564 );
13565 assert_eq!(
13566 wrap_with_prefix(
13567 String::new(),
13568 "这是什么 \n 钢笔".to_string(),
13569 3,
13570 NonZeroU32::new(4).unwrap()
13571 ),
13572 "这是什\n么 钢\n笔"
13573 );
13574}
13575
13576fn hunks_for_selections(
13577 snapshot: &EditorSnapshot,
13578 selections: &[Selection<Point>],
13579) -> Vec<MultiBufferDiffHunk> {
13580 hunks_for_ranges(
13581 selections.iter().map(|selection| selection.range()),
13582 snapshot,
13583 )
13584}
13585
13586pub fn hunks_for_ranges(
13587 ranges: impl Iterator<Item = Range<Point>>,
13588 snapshot: &EditorSnapshot,
13589) -> Vec<MultiBufferDiffHunk> {
13590 let mut hunks = Vec::new();
13591 let mut processed_buffer_rows: HashMap<BufferId, HashSet<Range<text::Anchor>>> =
13592 HashMap::default();
13593 for query_range in ranges {
13594 let query_rows =
13595 MultiBufferRow(query_range.start.row)..MultiBufferRow(query_range.end.row + 1);
13596 for hunk in snapshot.diff_map.diff_hunks_in_range(
13597 Point::new(query_rows.start.0, 0)..Point::new(query_rows.end.0, 0),
13598 &snapshot.buffer_snapshot,
13599 ) {
13600 // Deleted hunk is an empty row range, no caret can be placed there and Zed allows to revert it
13601 // when the caret is just above or just below the deleted hunk.
13602 let allow_adjacent = hunk_status(&hunk) == DiffHunkStatus::Removed;
13603 let related_to_selection = if allow_adjacent {
13604 hunk.row_range.overlaps(&query_rows)
13605 || hunk.row_range.start == query_rows.end
13606 || hunk.row_range.end == query_rows.start
13607 } else {
13608 hunk.row_range.overlaps(&query_rows)
13609 };
13610 if related_to_selection {
13611 if !processed_buffer_rows
13612 .entry(hunk.buffer_id)
13613 .or_default()
13614 .insert(hunk.buffer_range.start..hunk.buffer_range.end)
13615 {
13616 continue;
13617 }
13618 hunks.push(hunk);
13619 }
13620 }
13621 }
13622
13623 hunks
13624}
13625
13626pub trait CollaborationHub {
13627 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator>;
13628 fn user_participant_indices<'a>(
13629 &self,
13630 cx: &'a AppContext,
13631 ) -> &'a HashMap<u64, ParticipantIndex>;
13632 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString>;
13633}
13634
13635impl CollaborationHub for Model<Project> {
13636 fn collaborators<'a>(&self, cx: &'a AppContext) -> &'a HashMap<PeerId, Collaborator> {
13637 self.read(cx).collaborators()
13638 }
13639
13640 fn user_participant_indices<'a>(
13641 &self,
13642 cx: &'a AppContext,
13643 ) -> &'a HashMap<u64, ParticipantIndex> {
13644 self.read(cx).user_store().read(cx).participant_indices()
13645 }
13646
13647 fn user_names(&self, cx: &AppContext) -> HashMap<u64, SharedString> {
13648 let this = self.read(cx);
13649 let user_ids = this.collaborators().values().map(|c| c.user_id);
13650 this.user_store().read_with(cx, |user_store, cx| {
13651 user_store.participant_names(user_ids, cx)
13652 })
13653 }
13654}
13655
13656pub trait SemanticsProvider {
13657 fn hover(
13658 &self,
13659 buffer: &Model<Buffer>,
13660 position: text::Anchor,
13661 cx: &mut AppContext,
13662 ) -> Option<Task<Vec<project::Hover>>>;
13663
13664 fn inlay_hints(
13665 &self,
13666 buffer_handle: Model<Buffer>,
13667 range: Range<text::Anchor>,
13668 cx: &mut AppContext,
13669 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>>;
13670
13671 fn resolve_inlay_hint(
13672 &self,
13673 hint: InlayHint,
13674 buffer_handle: Model<Buffer>,
13675 server_id: LanguageServerId,
13676 cx: &mut AppContext,
13677 ) -> Option<Task<anyhow::Result<InlayHint>>>;
13678
13679 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool;
13680
13681 fn document_highlights(
13682 &self,
13683 buffer: &Model<Buffer>,
13684 position: text::Anchor,
13685 cx: &mut AppContext,
13686 ) -> Option<Task<Result<Vec<DocumentHighlight>>>>;
13687
13688 fn definitions(
13689 &self,
13690 buffer: &Model<Buffer>,
13691 position: text::Anchor,
13692 kind: GotoDefinitionKind,
13693 cx: &mut AppContext,
13694 ) -> Option<Task<Result<Vec<LocationLink>>>>;
13695
13696 fn range_for_rename(
13697 &self,
13698 buffer: &Model<Buffer>,
13699 position: text::Anchor,
13700 cx: &mut AppContext,
13701 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>>;
13702
13703 fn perform_rename(
13704 &self,
13705 buffer: &Model<Buffer>,
13706 position: text::Anchor,
13707 new_name: String,
13708 cx: &mut AppContext,
13709 ) -> Option<Task<Result<ProjectTransaction>>>;
13710}
13711
13712pub trait CompletionProvider {
13713 fn completions(
13714 &self,
13715 buffer: &Model<Buffer>,
13716 buffer_position: text::Anchor,
13717 trigger: CompletionContext,
13718 cx: &mut ViewContext<Editor>,
13719 ) -> Task<Result<Vec<Completion>>>;
13720
13721 fn resolve_completions(
13722 &self,
13723 buffer: Model<Buffer>,
13724 completion_indices: Vec<usize>,
13725 completions: Rc<RefCell<Box<[Completion]>>>,
13726 cx: &mut ViewContext<Editor>,
13727 ) -> Task<Result<bool>>;
13728
13729 fn apply_additional_edits_for_completion(
13730 &self,
13731 _buffer: Model<Buffer>,
13732 _completions: Rc<RefCell<Box<[Completion]>>>,
13733 _completion_index: usize,
13734 _push_to_history: bool,
13735 _cx: &mut ViewContext<Editor>,
13736 ) -> Task<Result<Option<language::Transaction>>> {
13737 Task::ready(Ok(None))
13738 }
13739
13740 fn is_completion_trigger(
13741 &self,
13742 buffer: &Model<Buffer>,
13743 position: language::Anchor,
13744 text: &str,
13745 trigger_in_words: bool,
13746 cx: &mut ViewContext<Editor>,
13747 ) -> bool;
13748
13749 fn sort_completions(&self) -> bool {
13750 true
13751 }
13752}
13753
13754pub trait CodeActionProvider {
13755 fn id(&self) -> Arc<str>;
13756
13757 fn code_actions(
13758 &self,
13759 buffer: &Model<Buffer>,
13760 range: Range<text::Anchor>,
13761 cx: &mut WindowContext,
13762 ) -> Task<Result<Vec<CodeAction>>>;
13763
13764 fn apply_code_action(
13765 &self,
13766 buffer_handle: Model<Buffer>,
13767 action: CodeAction,
13768 excerpt_id: ExcerptId,
13769 push_to_history: bool,
13770 cx: &mut WindowContext,
13771 ) -> Task<Result<ProjectTransaction>>;
13772}
13773
13774impl CodeActionProvider for Model<Project> {
13775 fn id(&self) -> Arc<str> {
13776 "project".into()
13777 }
13778
13779 fn code_actions(
13780 &self,
13781 buffer: &Model<Buffer>,
13782 range: Range<text::Anchor>,
13783 cx: &mut WindowContext,
13784 ) -> Task<Result<Vec<CodeAction>>> {
13785 self.update(cx, |project, cx| {
13786 project.code_actions(buffer, range, None, cx)
13787 })
13788 }
13789
13790 fn apply_code_action(
13791 &self,
13792 buffer_handle: Model<Buffer>,
13793 action: CodeAction,
13794 _excerpt_id: ExcerptId,
13795 push_to_history: bool,
13796 cx: &mut WindowContext,
13797 ) -> Task<Result<ProjectTransaction>> {
13798 self.update(cx, |project, cx| {
13799 project.apply_code_action(buffer_handle, action, push_to_history, cx)
13800 })
13801 }
13802}
13803
13804fn snippet_completions(
13805 project: &Project,
13806 buffer: &Model<Buffer>,
13807 buffer_position: text::Anchor,
13808 cx: &mut AppContext,
13809) -> Task<Result<Vec<Completion>>> {
13810 let language = buffer.read(cx).language_at(buffer_position);
13811 let language_name = language.as_ref().map(|language| language.lsp_id());
13812 let snippet_store = project.snippets().read(cx);
13813 let snippets = snippet_store.snippets_for(language_name, cx);
13814
13815 if snippets.is_empty() {
13816 return Task::ready(Ok(vec![]));
13817 }
13818 let snapshot = buffer.read(cx).text_snapshot();
13819 let chars: String = snapshot
13820 .reversed_chars_for_range(text::Anchor::MIN..buffer_position)
13821 .collect();
13822
13823 let scope = language.map(|language| language.default_scope());
13824 let executor = cx.background_executor().clone();
13825
13826 cx.background_executor().spawn(async move {
13827 let classifier = CharClassifier::new(scope).for_completion(true);
13828 let mut last_word = chars
13829 .chars()
13830 .take_while(|c| classifier.is_word(*c))
13831 .collect::<String>();
13832 last_word = last_word.chars().rev().collect();
13833
13834 if last_word.is_empty() {
13835 return Ok(vec![]);
13836 }
13837
13838 let as_offset = text::ToOffset::to_offset(&buffer_position, &snapshot);
13839 let to_lsp = |point: &text::Anchor| {
13840 let end = text::ToPointUtf16::to_point_utf16(point, &snapshot);
13841 point_to_lsp(end)
13842 };
13843 let lsp_end = to_lsp(&buffer_position);
13844
13845 let candidates = snippets
13846 .iter()
13847 .enumerate()
13848 .flat_map(|(ix, snippet)| {
13849 snippet
13850 .prefix
13851 .iter()
13852 .map(move |prefix| StringMatchCandidate::new(ix, &prefix))
13853 })
13854 .collect::<Vec<StringMatchCandidate>>();
13855
13856 let mut matches = fuzzy::match_strings(
13857 &candidates,
13858 &last_word,
13859 last_word.chars().any(|c| c.is_uppercase()),
13860 100,
13861 &Default::default(),
13862 executor,
13863 )
13864 .await;
13865
13866 // Remove all candidates where the query's start does not match the start of any word in the candidate
13867 if let Some(query_start) = last_word.chars().next() {
13868 matches.retain(|string_match| {
13869 split_words(&string_match.string).any(|word| {
13870 // Check that the first codepoint of the word as lowercase matches the first
13871 // codepoint of the query as lowercase
13872 word.chars()
13873 .flat_map(|codepoint| codepoint.to_lowercase())
13874 .zip(query_start.to_lowercase())
13875 .all(|(word_cp, query_cp)| word_cp == query_cp)
13876 })
13877 });
13878 }
13879
13880 let matched_strings = matches
13881 .into_iter()
13882 .map(|m| m.string)
13883 .collect::<HashSet<_>>();
13884
13885 let result: Vec<Completion> = snippets
13886 .into_iter()
13887 .filter_map(|snippet| {
13888 let matching_prefix = snippet
13889 .prefix
13890 .iter()
13891 .find(|prefix| matched_strings.contains(*prefix))?;
13892 let start = as_offset - last_word.len();
13893 let start = snapshot.anchor_before(start);
13894 let range = start..buffer_position;
13895 let lsp_start = to_lsp(&start);
13896 let lsp_range = lsp::Range {
13897 start: lsp_start,
13898 end: lsp_end,
13899 };
13900 Some(Completion {
13901 old_range: range,
13902 new_text: snippet.body.clone(),
13903 resolved: false,
13904 label: CodeLabel {
13905 text: matching_prefix.clone(),
13906 runs: vec![],
13907 filter_range: 0..matching_prefix.len(),
13908 },
13909 server_id: LanguageServerId(usize::MAX),
13910 documentation: snippet.description.clone().map(Documentation::SingleLine),
13911 lsp_completion: lsp::CompletionItem {
13912 label: snippet.prefix.first().unwrap().clone(),
13913 kind: Some(CompletionItemKind::SNIPPET),
13914 label_details: snippet.description.as_ref().map(|description| {
13915 lsp::CompletionItemLabelDetails {
13916 detail: Some(description.clone()),
13917 description: None,
13918 }
13919 }),
13920 insert_text_format: Some(InsertTextFormat::SNIPPET),
13921 text_edit: Some(lsp::CompletionTextEdit::InsertAndReplace(
13922 lsp::InsertReplaceEdit {
13923 new_text: snippet.body.clone(),
13924 insert: lsp_range,
13925 replace: lsp_range,
13926 },
13927 )),
13928 filter_text: Some(snippet.body.clone()),
13929 sort_text: Some(char::MAX.to_string()),
13930 ..Default::default()
13931 },
13932 confirm: None,
13933 })
13934 })
13935 .collect();
13936
13937 Ok(result)
13938 })
13939}
13940
13941impl CompletionProvider for Model<Project> {
13942 fn completions(
13943 &self,
13944 buffer: &Model<Buffer>,
13945 buffer_position: text::Anchor,
13946 options: CompletionContext,
13947 cx: &mut ViewContext<Editor>,
13948 ) -> Task<Result<Vec<Completion>>> {
13949 self.update(cx, |project, cx| {
13950 let snippets = snippet_completions(project, buffer, buffer_position, cx);
13951 let project_completions = project.completions(buffer, buffer_position, options, cx);
13952 cx.background_executor().spawn(async move {
13953 let mut completions = project_completions.await?;
13954 let snippets_completions = snippets.await?;
13955 completions.extend(snippets_completions);
13956 Ok(completions)
13957 })
13958 })
13959 }
13960
13961 fn resolve_completions(
13962 &self,
13963 buffer: Model<Buffer>,
13964 completion_indices: Vec<usize>,
13965 completions: Rc<RefCell<Box<[Completion]>>>,
13966 cx: &mut ViewContext<Editor>,
13967 ) -> Task<Result<bool>> {
13968 self.update(cx, |project, cx| {
13969 project.lsp_store().update(cx, |lsp_store, cx| {
13970 lsp_store.resolve_completions(buffer, completion_indices, completions, cx)
13971 })
13972 })
13973 }
13974
13975 fn apply_additional_edits_for_completion(
13976 &self,
13977 buffer: Model<Buffer>,
13978 completions: Rc<RefCell<Box<[Completion]>>>,
13979 completion_index: usize,
13980 push_to_history: bool,
13981 cx: &mut ViewContext<Editor>,
13982 ) -> Task<Result<Option<language::Transaction>>> {
13983 self.update(cx, |project, cx| {
13984 project.lsp_store().update(cx, |lsp_store, cx| {
13985 lsp_store.apply_additional_edits_for_completion(
13986 buffer,
13987 completions,
13988 completion_index,
13989 push_to_history,
13990 cx,
13991 )
13992 })
13993 })
13994 }
13995
13996 fn is_completion_trigger(
13997 &self,
13998 buffer: &Model<Buffer>,
13999 position: language::Anchor,
14000 text: &str,
14001 trigger_in_words: bool,
14002 cx: &mut ViewContext<Editor>,
14003 ) -> bool {
14004 let mut chars = text.chars();
14005 let char = if let Some(char) = chars.next() {
14006 char
14007 } else {
14008 return false;
14009 };
14010 if chars.next().is_some() {
14011 return false;
14012 }
14013
14014 let buffer = buffer.read(cx);
14015 let snapshot = buffer.snapshot();
14016 if !snapshot.settings_at(position, cx).show_completions_on_input {
14017 return false;
14018 }
14019 let classifier = snapshot.char_classifier_at(position).for_completion(true);
14020 if trigger_in_words && classifier.is_word(char) {
14021 return true;
14022 }
14023
14024 buffer.completion_triggers().contains(text)
14025 }
14026}
14027
14028impl SemanticsProvider for Model<Project> {
14029 fn hover(
14030 &self,
14031 buffer: &Model<Buffer>,
14032 position: text::Anchor,
14033 cx: &mut AppContext,
14034 ) -> Option<Task<Vec<project::Hover>>> {
14035 Some(self.update(cx, |project, cx| project.hover(buffer, position, cx)))
14036 }
14037
14038 fn document_highlights(
14039 &self,
14040 buffer: &Model<Buffer>,
14041 position: text::Anchor,
14042 cx: &mut AppContext,
14043 ) -> Option<Task<Result<Vec<DocumentHighlight>>>> {
14044 Some(self.update(cx, |project, cx| {
14045 project.document_highlights(buffer, position, cx)
14046 }))
14047 }
14048
14049 fn definitions(
14050 &self,
14051 buffer: &Model<Buffer>,
14052 position: text::Anchor,
14053 kind: GotoDefinitionKind,
14054 cx: &mut AppContext,
14055 ) -> Option<Task<Result<Vec<LocationLink>>>> {
14056 Some(self.update(cx, |project, cx| match kind {
14057 GotoDefinitionKind::Symbol => project.definition(&buffer, position, cx),
14058 GotoDefinitionKind::Declaration => project.declaration(&buffer, position, cx),
14059 GotoDefinitionKind::Type => project.type_definition(&buffer, position, cx),
14060 GotoDefinitionKind::Implementation => project.implementation(&buffer, position, cx),
14061 }))
14062 }
14063
14064 fn supports_inlay_hints(&self, buffer: &Model<Buffer>, cx: &AppContext) -> bool {
14065 // TODO: make this work for remote projects
14066 self.read(cx)
14067 .language_servers_for_local_buffer(buffer.read(cx), cx)
14068 .any(
14069 |(_, server)| match server.capabilities().inlay_hint_provider {
14070 Some(lsp::OneOf::Left(enabled)) => enabled,
14071 Some(lsp::OneOf::Right(_)) => true,
14072 None => false,
14073 },
14074 )
14075 }
14076
14077 fn inlay_hints(
14078 &self,
14079 buffer_handle: Model<Buffer>,
14080 range: Range<text::Anchor>,
14081 cx: &mut AppContext,
14082 ) -> Option<Task<anyhow::Result<Vec<InlayHint>>>> {
14083 Some(self.update(cx, |project, cx| {
14084 project.inlay_hints(buffer_handle, range, cx)
14085 }))
14086 }
14087
14088 fn resolve_inlay_hint(
14089 &self,
14090 hint: InlayHint,
14091 buffer_handle: Model<Buffer>,
14092 server_id: LanguageServerId,
14093 cx: &mut AppContext,
14094 ) -> Option<Task<anyhow::Result<InlayHint>>> {
14095 Some(self.update(cx, |project, cx| {
14096 project.resolve_inlay_hint(hint, buffer_handle, server_id, cx)
14097 }))
14098 }
14099
14100 fn range_for_rename(
14101 &self,
14102 buffer: &Model<Buffer>,
14103 position: text::Anchor,
14104 cx: &mut AppContext,
14105 ) -> Option<Task<Result<Option<Range<text::Anchor>>>>> {
14106 Some(self.update(cx, |project, cx| {
14107 let buffer = buffer.clone();
14108 let task = project.prepare_rename(buffer.clone(), position, cx);
14109 cx.spawn(|_, mut cx| async move {
14110 Ok(match task.await? {
14111 PrepareRenameResponse::Success(range) => Some(range),
14112 PrepareRenameResponse::InvalidPosition => None,
14113 PrepareRenameResponse::OnlyUnpreparedRenameSupported => {
14114 // Fallback on using TreeSitter info to determine identifier range
14115 buffer.update(&mut cx, |buffer, _| {
14116 let snapshot = buffer.snapshot();
14117 let (range, kind) = snapshot.surrounding_word(position);
14118 if kind != Some(CharKind::Word) {
14119 return None;
14120 }
14121 Some(
14122 snapshot.anchor_before(range.start)
14123 ..snapshot.anchor_after(range.end),
14124 )
14125 })?
14126 }
14127 })
14128 })
14129 }))
14130 }
14131
14132 fn perform_rename(
14133 &self,
14134 buffer: &Model<Buffer>,
14135 position: text::Anchor,
14136 new_name: String,
14137 cx: &mut AppContext,
14138 ) -> Option<Task<Result<ProjectTransaction>>> {
14139 Some(self.update(cx, |project, cx| {
14140 project.perform_rename(buffer.clone(), position, new_name, cx)
14141 }))
14142 }
14143}
14144
14145fn inlay_hint_settings(
14146 location: Anchor,
14147 snapshot: &MultiBufferSnapshot,
14148 cx: &mut ViewContext<Editor>,
14149) -> InlayHintSettings {
14150 let file = snapshot.file_at(location);
14151 let language = snapshot.language_at(location).map(|l| l.name());
14152 language_settings(language, file, cx).inlay_hints
14153}
14154
14155fn consume_contiguous_rows(
14156 contiguous_row_selections: &mut Vec<Selection<Point>>,
14157 selection: &Selection<Point>,
14158 display_map: &DisplaySnapshot,
14159 selections: &mut Peekable<std::slice::Iter<Selection<Point>>>,
14160) -> (MultiBufferRow, MultiBufferRow) {
14161 contiguous_row_selections.push(selection.clone());
14162 let start_row = MultiBufferRow(selection.start.row);
14163 let mut end_row = ending_row(selection, display_map);
14164
14165 while let Some(next_selection) = selections.peek() {
14166 if next_selection.start.row <= end_row.0 {
14167 end_row = ending_row(next_selection, display_map);
14168 contiguous_row_selections.push(selections.next().unwrap().clone());
14169 } else {
14170 break;
14171 }
14172 }
14173 (start_row, end_row)
14174}
14175
14176fn ending_row(next_selection: &Selection<Point>, display_map: &DisplaySnapshot) -> MultiBufferRow {
14177 if next_selection.end.column > 0 || next_selection.is_empty() {
14178 MultiBufferRow(display_map.next_line_boundary(next_selection.end).0.row + 1)
14179 } else {
14180 MultiBufferRow(next_selection.end.row)
14181 }
14182}
14183
14184impl EditorSnapshot {
14185 pub fn remote_selections_in_range<'a>(
14186 &'a self,
14187 range: &'a Range<Anchor>,
14188 collaboration_hub: &dyn CollaborationHub,
14189 cx: &'a AppContext,
14190 ) -> impl 'a + Iterator<Item = RemoteSelection> {
14191 let participant_names = collaboration_hub.user_names(cx);
14192 let participant_indices = collaboration_hub.user_participant_indices(cx);
14193 let collaborators_by_peer_id = collaboration_hub.collaborators(cx);
14194 let collaborators_by_replica_id = collaborators_by_peer_id
14195 .iter()
14196 .map(|(_, collaborator)| (collaborator.replica_id, collaborator))
14197 .collect::<HashMap<_, _>>();
14198 self.buffer_snapshot
14199 .selections_in_range(range, false)
14200 .filter_map(move |(replica_id, line_mode, cursor_shape, selection)| {
14201 let collaborator = collaborators_by_replica_id.get(&replica_id)?;
14202 let participant_index = participant_indices.get(&collaborator.user_id).copied();
14203 let user_name = participant_names.get(&collaborator.user_id).cloned();
14204 Some(RemoteSelection {
14205 replica_id,
14206 selection,
14207 cursor_shape,
14208 line_mode,
14209 participant_index,
14210 peer_id: collaborator.peer_id,
14211 user_name,
14212 })
14213 })
14214 }
14215
14216 pub fn language_at<T: ToOffset>(&self, position: T) -> Option<&Arc<Language>> {
14217 self.display_snapshot.buffer_snapshot.language_at(position)
14218 }
14219
14220 pub fn is_focused(&self) -> bool {
14221 self.is_focused
14222 }
14223
14224 pub fn placeholder_text(&self) -> Option<&Arc<str>> {
14225 self.placeholder_text.as_ref()
14226 }
14227
14228 pub fn scroll_position(&self) -> gpui::Point<f32> {
14229 self.scroll_anchor.scroll_position(&self.display_snapshot)
14230 }
14231
14232 fn gutter_dimensions(
14233 &self,
14234 font_id: FontId,
14235 font_size: Pixels,
14236 em_width: Pixels,
14237 em_advance: Pixels,
14238 max_line_number_width: Pixels,
14239 cx: &AppContext,
14240 ) -> GutterDimensions {
14241 if !self.show_gutter {
14242 return GutterDimensions::default();
14243 }
14244 let descent = cx.text_system().descent(font_id, font_size);
14245
14246 let show_git_gutter = self.show_git_diff_gutter.unwrap_or_else(|| {
14247 matches!(
14248 ProjectSettings::get_global(cx).git.git_gutter,
14249 Some(GitGutterSetting::TrackedFiles)
14250 )
14251 });
14252 let gutter_settings = EditorSettings::get_global(cx).gutter;
14253 let show_line_numbers = self
14254 .show_line_numbers
14255 .unwrap_or(gutter_settings.line_numbers);
14256 let line_gutter_width = if show_line_numbers {
14257 // Avoid flicker-like gutter resizes when the line number gains another digit and only resize the gutter on files with N*10^5 lines.
14258 let min_width_for_number_on_gutter = em_advance * 4.0;
14259 max_line_number_width.max(min_width_for_number_on_gutter)
14260 } else {
14261 0.0.into()
14262 };
14263
14264 let show_code_actions = self
14265 .show_code_actions
14266 .unwrap_or(gutter_settings.code_actions);
14267
14268 let show_runnables = self.show_runnables.unwrap_or(gutter_settings.runnables);
14269
14270 let git_blame_entries_width =
14271 self.git_blame_gutter_max_author_length
14272 .map(|max_author_length| {
14273 // Length of the author name, but also space for the commit hash,
14274 // the spacing and the timestamp.
14275 let max_char_count = max_author_length
14276 .min(GIT_BLAME_MAX_AUTHOR_CHARS_DISPLAYED)
14277 + 7 // length of commit sha
14278 + 14 // length of max relative timestamp ("60 minutes ago")
14279 + 4; // gaps and margins
14280
14281 em_advance * max_char_count
14282 });
14283
14284 let mut left_padding = git_blame_entries_width.unwrap_or(Pixels::ZERO);
14285 left_padding += if show_code_actions || show_runnables {
14286 em_width * 3.0
14287 } else if show_git_gutter && show_line_numbers {
14288 em_width * 2.0
14289 } else if show_git_gutter || show_line_numbers {
14290 em_width
14291 } else {
14292 px(0.)
14293 };
14294
14295 let right_padding = if gutter_settings.folds && show_line_numbers {
14296 em_width * 4.0
14297 } else if gutter_settings.folds {
14298 em_width * 3.0
14299 } else if show_line_numbers {
14300 em_width
14301 } else {
14302 px(0.)
14303 };
14304
14305 GutterDimensions {
14306 left_padding,
14307 right_padding,
14308 width: line_gutter_width + left_padding + right_padding,
14309 margin: -descent,
14310 git_blame_entries_width,
14311 }
14312 }
14313
14314 pub fn render_crease_toggle(
14315 &self,
14316 buffer_row: MultiBufferRow,
14317 row_contains_cursor: bool,
14318 editor: View<Editor>,
14319 cx: &mut WindowContext,
14320 ) -> Option<AnyElement> {
14321 let folded = self.is_line_folded(buffer_row);
14322 let mut is_foldable = false;
14323
14324 if let Some(crease) = self
14325 .crease_snapshot
14326 .query_row(buffer_row, &self.buffer_snapshot)
14327 {
14328 is_foldable = true;
14329 match crease {
14330 Crease::Inline { render_toggle, .. } | Crease::Block { render_toggle, .. } => {
14331 if let Some(render_toggle) = render_toggle {
14332 let toggle_callback = Arc::new(move |folded, cx: &mut WindowContext| {
14333 if folded {
14334 editor.update(cx, |editor, cx| {
14335 editor.fold_at(&crate::FoldAt { buffer_row }, cx)
14336 });
14337 } else {
14338 editor.update(cx, |editor, cx| {
14339 editor.unfold_at(&crate::UnfoldAt { buffer_row }, cx)
14340 });
14341 }
14342 });
14343 return Some((render_toggle)(buffer_row, folded, toggle_callback, cx));
14344 }
14345 }
14346 }
14347 }
14348
14349 is_foldable |= self.starts_indent(buffer_row);
14350
14351 if folded || (is_foldable && (row_contains_cursor || self.gutter_hovered)) {
14352 Some(
14353 Disclosure::new(("gutter_crease", buffer_row.0), !folded)
14354 .toggle_state(folded)
14355 .on_click(cx.listener_for(&editor, move |this, _e, cx| {
14356 if folded {
14357 this.unfold_at(&UnfoldAt { buffer_row }, cx);
14358 } else {
14359 this.fold_at(&FoldAt { buffer_row }, cx);
14360 }
14361 }))
14362 .into_any_element(),
14363 )
14364 } else {
14365 None
14366 }
14367 }
14368
14369 pub fn render_crease_trailer(
14370 &self,
14371 buffer_row: MultiBufferRow,
14372 cx: &mut WindowContext,
14373 ) -> Option<AnyElement> {
14374 let folded = self.is_line_folded(buffer_row);
14375 if let Crease::Inline { render_trailer, .. } = self
14376 .crease_snapshot
14377 .query_row(buffer_row, &self.buffer_snapshot)?
14378 {
14379 let render_trailer = render_trailer.as_ref()?;
14380 Some(render_trailer(buffer_row, folded, cx))
14381 } else {
14382 None
14383 }
14384 }
14385}
14386
14387impl Deref for EditorSnapshot {
14388 type Target = DisplaySnapshot;
14389
14390 fn deref(&self) -> &Self::Target {
14391 &self.display_snapshot
14392 }
14393}
14394
14395#[derive(Clone, Debug, PartialEq, Eq)]
14396pub enum EditorEvent {
14397 InputIgnored {
14398 text: Arc<str>,
14399 },
14400 InputHandled {
14401 utf16_range_to_replace: Option<Range<isize>>,
14402 text: Arc<str>,
14403 },
14404 ExcerptsAdded {
14405 buffer: Model<Buffer>,
14406 predecessor: ExcerptId,
14407 excerpts: Vec<(ExcerptId, ExcerptRange<language::Anchor>)>,
14408 },
14409 ExcerptsRemoved {
14410 ids: Vec<ExcerptId>,
14411 },
14412 BufferFoldToggled {
14413 ids: Vec<ExcerptId>,
14414 folded: bool,
14415 },
14416 ExcerptsEdited {
14417 ids: Vec<ExcerptId>,
14418 },
14419 ExcerptsExpanded {
14420 ids: Vec<ExcerptId>,
14421 },
14422 BufferEdited,
14423 Edited {
14424 transaction_id: clock::Lamport,
14425 },
14426 Reparsed(BufferId),
14427 Focused,
14428 FocusedIn,
14429 Blurred,
14430 DirtyChanged,
14431 Saved,
14432 TitleChanged,
14433 DiffBaseChanged,
14434 SelectionsChanged {
14435 local: bool,
14436 },
14437 ScrollPositionChanged {
14438 local: bool,
14439 autoscroll: bool,
14440 },
14441 Closed,
14442 TransactionUndone {
14443 transaction_id: clock::Lamport,
14444 },
14445 TransactionBegun {
14446 transaction_id: clock::Lamport,
14447 },
14448 Reloaded,
14449 CursorShapeChanged,
14450}
14451
14452impl EventEmitter<EditorEvent> for Editor {}
14453
14454impl FocusableView for Editor {
14455 fn focus_handle(&self, _cx: &AppContext) -> FocusHandle {
14456 self.focus_handle.clone()
14457 }
14458}
14459
14460impl Render for Editor {
14461 fn render<'a>(&mut self, cx: &mut ViewContext<'a, Self>) -> impl IntoElement {
14462 let settings = ThemeSettings::get_global(cx);
14463
14464 let mut text_style = match self.mode {
14465 EditorMode::SingleLine { .. } | EditorMode::AutoHeight { .. } => TextStyle {
14466 color: cx.theme().colors().editor_foreground,
14467 font_family: settings.ui_font.family.clone(),
14468 font_features: settings.ui_font.features.clone(),
14469 font_fallbacks: settings.ui_font.fallbacks.clone(),
14470 font_size: rems(0.875).into(),
14471 font_weight: settings.ui_font.weight,
14472 line_height: relative(settings.buffer_line_height.value()),
14473 ..Default::default()
14474 },
14475 EditorMode::Full => TextStyle {
14476 color: cx.theme().colors().editor_foreground,
14477 font_family: settings.buffer_font.family.clone(),
14478 font_features: settings.buffer_font.features.clone(),
14479 font_fallbacks: settings.buffer_font.fallbacks.clone(),
14480 font_size: settings.buffer_font_size().into(),
14481 font_weight: settings.buffer_font.weight,
14482 line_height: relative(settings.buffer_line_height.value()),
14483 ..Default::default()
14484 },
14485 };
14486 if let Some(text_style_refinement) = &self.text_style_refinement {
14487 text_style.refine(text_style_refinement)
14488 }
14489
14490 let background = match self.mode {
14491 EditorMode::SingleLine { .. } => cx.theme().system().transparent,
14492 EditorMode::AutoHeight { max_lines: _ } => cx.theme().system().transparent,
14493 EditorMode::Full => cx.theme().colors().editor_background,
14494 };
14495
14496 EditorElement::new(
14497 cx.view(),
14498 EditorStyle {
14499 background,
14500 local_player: cx.theme().players().local(),
14501 text: text_style,
14502 scrollbar_width: EditorElement::SCROLLBAR_WIDTH,
14503 syntax: cx.theme().syntax().clone(),
14504 status: cx.theme().status().clone(),
14505 inlay_hints_style: make_inlay_hints_style(cx),
14506 inline_completion_styles: make_suggestion_styles(cx),
14507 unnecessary_code_fade: ThemeSettings::get_global(cx).unnecessary_code_fade,
14508 },
14509 )
14510 }
14511}
14512
14513impl ViewInputHandler for Editor {
14514 fn text_for_range(
14515 &mut self,
14516 range_utf16: Range<usize>,
14517 adjusted_range: &mut Option<Range<usize>>,
14518 cx: &mut ViewContext<Self>,
14519 ) -> Option<String> {
14520 let snapshot = self.buffer.read(cx).read(cx);
14521 let start = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.start), Bias::Left);
14522 let end = snapshot.clip_offset_utf16(OffsetUtf16(range_utf16.end), Bias::Right);
14523 if (start.0..end.0) != range_utf16 {
14524 adjusted_range.replace(start.0..end.0);
14525 }
14526 Some(snapshot.text_for_range(start..end).collect())
14527 }
14528
14529 fn selected_text_range(
14530 &mut self,
14531 ignore_disabled_input: bool,
14532 cx: &mut ViewContext<Self>,
14533 ) -> Option<UTF16Selection> {
14534 // Prevent the IME menu from appearing when holding down an alphabetic key
14535 // while input is disabled.
14536 if !ignore_disabled_input && !self.input_enabled {
14537 return None;
14538 }
14539
14540 let selection = self.selections.newest::<OffsetUtf16>(cx);
14541 let range = selection.range();
14542
14543 Some(UTF16Selection {
14544 range: range.start.0..range.end.0,
14545 reversed: selection.reversed,
14546 })
14547 }
14548
14549 fn marked_text_range(&self, cx: &mut ViewContext<Self>) -> Option<Range<usize>> {
14550 let snapshot = self.buffer.read(cx).read(cx);
14551 let range = self.text_highlights::<InputComposition>(cx)?.1.first()?;
14552 Some(range.start.to_offset_utf16(&snapshot).0..range.end.to_offset_utf16(&snapshot).0)
14553 }
14554
14555 fn unmark_text(&mut self, cx: &mut ViewContext<Self>) {
14556 self.clear_highlights::<InputComposition>(cx);
14557 self.ime_transaction.take();
14558 }
14559
14560 fn replace_text_in_range(
14561 &mut self,
14562 range_utf16: Option<Range<usize>>,
14563 text: &str,
14564 cx: &mut ViewContext<Self>,
14565 ) {
14566 if !self.input_enabled {
14567 cx.emit(EditorEvent::InputIgnored { text: text.into() });
14568 return;
14569 }
14570
14571 self.transact(cx, |this, cx| {
14572 let new_selected_ranges = if let Some(range_utf16) = range_utf16 {
14573 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14574 Some(this.selection_replacement_ranges(range_utf16, cx))
14575 } else {
14576 this.marked_text_ranges(cx)
14577 };
14578
14579 let range_to_replace = new_selected_ranges.as_ref().and_then(|ranges_to_replace| {
14580 let newest_selection_id = this.selections.newest_anchor().id;
14581 this.selections
14582 .all::<OffsetUtf16>(cx)
14583 .iter()
14584 .zip(ranges_to_replace.iter())
14585 .find_map(|(selection, range)| {
14586 if selection.id == newest_selection_id {
14587 Some(
14588 (range.start.0 as isize - selection.head().0 as isize)
14589 ..(range.end.0 as isize - selection.head().0 as isize),
14590 )
14591 } else {
14592 None
14593 }
14594 })
14595 });
14596
14597 cx.emit(EditorEvent::InputHandled {
14598 utf16_range_to_replace: range_to_replace,
14599 text: text.into(),
14600 });
14601
14602 if let Some(new_selected_ranges) = new_selected_ranges {
14603 this.change_selections(None, cx, |selections| {
14604 selections.select_ranges(new_selected_ranges)
14605 });
14606 this.backspace(&Default::default(), cx);
14607 }
14608
14609 this.handle_input(text, cx);
14610 });
14611
14612 if let Some(transaction) = self.ime_transaction {
14613 self.buffer.update(cx, |buffer, cx| {
14614 buffer.group_until_transaction(transaction, cx);
14615 });
14616 }
14617
14618 self.unmark_text(cx);
14619 }
14620
14621 fn replace_and_mark_text_in_range(
14622 &mut self,
14623 range_utf16: Option<Range<usize>>,
14624 text: &str,
14625 new_selected_range_utf16: Option<Range<usize>>,
14626 cx: &mut ViewContext<Self>,
14627 ) {
14628 if !self.input_enabled {
14629 return;
14630 }
14631
14632 let transaction = self.transact(cx, |this, cx| {
14633 let ranges_to_replace = if let Some(mut marked_ranges) = this.marked_text_ranges(cx) {
14634 let snapshot = this.buffer.read(cx).read(cx);
14635 if let Some(relative_range_utf16) = range_utf16.as_ref() {
14636 for marked_range in &mut marked_ranges {
14637 marked_range.end.0 = marked_range.start.0 + relative_range_utf16.end;
14638 marked_range.start.0 += relative_range_utf16.start;
14639 marked_range.start =
14640 snapshot.clip_offset_utf16(marked_range.start, Bias::Left);
14641 marked_range.end =
14642 snapshot.clip_offset_utf16(marked_range.end, Bias::Right);
14643 }
14644 }
14645 Some(marked_ranges)
14646 } else if let Some(range_utf16) = range_utf16 {
14647 let range_utf16 = OffsetUtf16(range_utf16.start)..OffsetUtf16(range_utf16.end);
14648 Some(this.selection_replacement_ranges(range_utf16, cx))
14649 } else {
14650 None
14651 };
14652
14653 let range_to_replace = ranges_to_replace.as_ref().and_then(|ranges_to_replace| {
14654 let newest_selection_id = this.selections.newest_anchor().id;
14655 this.selections
14656 .all::<OffsetUtf16>(cx)
14657 .iter()
14658 .zip(ranges_to_replace.iter())
14659 .find_map(|(selection, range)| {
14660 if selection.id == newest_selection_id {
14661 Some(
14662 (range.start.0 as isize - selection.head().0 as isize)
14663 ..(range.end.0 as isize - selection.head().0 as isize),
14664 )
14665 } else {
14666 None
14667 }
14668 })
14669 });
14670
14671 cx.emit(EditorEvent::InputHandled {
14672 utf16_range_to_replace: range_to_replace,
14673 text: text.into(),
14674 });
14675
14676 if let Some(ranges) = ranges_to_replace {
14677 this.change_selections(None, cx, |s| s.select_ranges(ranges));
14678 }
14679
14680 let marked_ranges = {
14681 let snapshot = this.buffer.read(cx).read(cx);
14682 this.selections
14683 .disjoint_anchors()
14684 .iter()
14685 .map(|selection| {
14686 selection.start.bias_left(&snapshot)..selection.end.bias_right(&snapshot)
14687 })
14688 .collect::<Vec<_>>()
14689 };
14690
14691 if text.is_empty() {
14692 this.unmark_text(cx);
14693 } else {
14694 this.highlight_text::<InputComposition>(
14695 marked_ranges.clone(),
14696 HighlightStyle {
14697 underline: Some(UnderlineStyle {
14698 thickness: px(1.),
14699 color: None,
14700 wavy: false,
14701 }),
14702 ..Default::default()
14703 },
14704 cx,
14705 );
14706 }
14707
14708 // Disable auto-closing when composing text (i.e. typing a `"` on a Brazilian keyboard)
14709 let use_autoclose = this.use_autoclose;
14710 let use_auto_surround = this.use_auto_surround;
14711 this.set_use_autoclose(false);
14712 this.set_use_auto_surround(false);
14713 this.handle_input(text, cx);
14714 this.set_use_autoclose(use_autoclose);
14715 this.set_use_auto_surround(use_auto_surround);
14716
14717 if let Some(new_selected_range) = new_selected_range_utf16 {
14718 let snapshot = this.buffer.read(cx).read(cx);
14719 let new_selected_ranges = marked_ranges
14720 .into_iter()
14721 .map(|marked_range| {
14722 let insertion_start = marked_range.start.to_offset_utf16(&snapshot).0;
14723 let new_start = OffsetUtf16(new_selected_range.start + insertion_start);
14724 let new_end = OffsetUtf16(new_selected_range.end + insertion_start);
14725 snapshot.clip_offset_utf16(new_start, Bias::Left)
14726 ..snapshot.clip_offset_utf16(new_end, Bias::Right)
14727 })
14728 .collect::<Vec<_>>();
14729
14730 drop(snapshot);
14731 this.change_selections(None, cx, |selections| {
14732 selections.select_ranges(new_selected_ranges)
14733 });
14734 }
14735 });
14736
14737 self.ime_transaction = self.ime_transaction.or(transaction);
14738 if let Some(transaction) = self.ime_transaction {
14739 self.buffer.update(cx, |buffer, cx| {
14740 buffer.group_until_transaction(transaction, cx);
14741 });
14742 }
14743
14744 if self.text_highlights::<InputComposition>(cx).is_none() {
14745 self.ime_transaction.take();
14746 }
14747 }
14748
14749 fn bounds_for_range(
14750 &mut self,
14751 range_utf16: Range<usize>,
14752 element_bounds: gpui::Bounds<Pixels>,
14753 cx: &mut ViewContext<Self>,
14754 ) -> Option<gpui::Bounds<Pixels>> {
14755 let text_layout_details = self.text_layout_details(cx);
14756 let gpui::Point {
14757 x: em_width,
14758 y: line_height,
14759 } = self.character_size(cx);
14760
14761 let snapshot = self.snapshot(cx);
14762 let scroll_position = snapshot.scroll_position();
14763 let scroll_left = scroll_position.x * em_width;
14764
14765 let start = OffsetUtf16(range_utf16.start).to_display_point(&snapshot);
14766 let x = snapshot.x_for_display_point(start, &text_layout_details) - scroll_left
14767 + self.gutter_dimensions.width
14768 + self.gutter_dimensions.margin;
14769 let y = line_height * (start.row().as_f32() - scroll_position.y);
14770
14771 Some(Bounds {
14772 origin: element_bounds.origin + point(x, y),
14773 size: size(em_width, line_height),
14774 })
14775 }
14776}
14777
14778trait SelectionExt {
14779 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint>;
14780 fn spanned_rows(
14781 &self,
14782 include_end_if_at_line_start: bool,
14783 map: &DisplaySnapshot,
14784 ) -> Range<MultiBufferRow>;
14785}
14786
14787impl<T: ToPoint + ToOffset> SelectionExt for Selection<T> {
14788 fn display_range(&self, map: &DisplaySnapshot) -> Range<DisplayPoint> {
14789 let start = self
14790 .start
14791 .to_point(&map.buffer_snapshot)
14792 .to_display_point(map);
14793 let end = self
14794 .end
14795 .to_point(&map.buffer_snapshot)
14796 .to_display_point(map);
14797 if self.reversed {
14798 end..start
14799 } else {
14800 start..end
14801 }
14802 }
14803
14804 fn spanned_rows(
14805 &self,
14806 include_end_if_at_line_start: bool,
14807 map: &DisplaySnapshot,
14808 ) -> Range<MultiBufferRow> {
14809 let start = self.start.to_point(&map.buffer_snapshot);
14810 let mut end = self.end.to_point(&map.buffer_snapshot);
14811 if !include_end_if_at_line_start && start.row != end.row && end.column == 0 {
14812 end.row -= 1;
14813 }
14814
14815 let buffer_start = map.prev_line_boundary(start).0;
14816 let buffer_end = map.next_line_boundary(end).0;
14817 MultiBufferRow(buffer_start.row)..MultiBufferRow(buffer_end.row + 1)
14818 }
14819}
14820
14821impl<T: InvalidationRegion> InvalidationStack<T> {
14822 fn invalidate<S>(&mut self, selections: &[Selection<S>], buffer: &MultiBufferSnapshot)
14823 where
14824 S: Clone + ToOffset,
14825 {
14826 while let Some(region) = self.last() {
14827 let all_selections_inside_invalidation_ranges =
14828 if selections.len() == region.ranges().len() {
14829 selections
14830 .iter()
14831 .zip(region.ranges().iter().map(|r| r.to_offset(buffer)))
14832 .all(|(selection, invalidation_range)| {
14833 let head = selection.head().to_offset(buffer);
14834 invalidation_range.start <= head && invalidation_range.end >= head
14835 })
14836 } else {
14837 false
14838 };
14839
14840 if all_selections_inside_invalidation_ranges {
14841 break;
14842 } else {
14843 self.pop();
14844 }
14845 }
14846 }
14847}
14848
14849impl<T> Default for InvalidationStack<T> {
14850 fn default() -> Self {
14851 Self(Default::default())
14852 }
14853}
14854
14855impl<T> Deref for InvalidationStack<T> {
14856 type Target = Vec<T>;
14857
14858 fn deref(&self) -> &Self::Target {
14859 &self.0
14860 }
14861}
14862
14863impl<T> DerefMut for InvalidationStack<T> {
14864 fn deref_mut(&mut self) -> &mut Self::Target {
14865 &mut self.0
14866 }
14867}
14868
14869impl InvalidationRegion for SnippetState {
14870 fn ranges(&self) -> &[Range<Anchor>] {
14871 &self.ranges[self.active_index]
14872 }
14873}
14874
14875pub fn diagnostic_block_renderer(
14876 diagnostic: Diagnostic,
14877 max_message_rows: Option<u8>,
14878 allow_closing: bool,
14879 _is_valid: bool,
14880) -> RenderBlock {
14881 let (text_without_backticks, code_ranges) =
14882 highlight_diagnostic_message(&diagnostic, max_message_rows);
14883
14884 Arc::new(move |cx: &mut BlockContext| {
14885 let group_id: SharedString = cx.block_id.to_string().into();
14886
14887 let mut text_style = cx.text_style().clone();
14888 text_style.color = diagnostic_style(diagnostic.severity, cx.theme().status());
14889 let theme_settings = ThemeSettings::get_global(cx);
14890 text_style.font_family = theme_settings.buffer_font.family.clone();
14891 text_style.font_style = theme_settings.buffer_font.style;
14892 text_style.font_features = theme_settings.buffer_font.features.clone();
14893 text_style.font_weight = theme_settings.buffer_font.weight;
14894
14895 let multi_line_diagnostic = diagnostic.message.contains('\n');
14896
14897 let buttons = |diagnostic: &Diagnostic| {
14898 if multi_line_diagnostic {
14899 v_flex()
14900 } else {
14901 h_flex()
14902 }
14903 .when(allow_closing, |div| {
14904 div.children(diagnostic.is_primary.then(|| {
14905 IconButton::new("close-block", IconName::XCircle)
14906 .icon_color(Color::Muted)
14907 .size(ButtonSize::Compact)
14908 .style(ButtonStyle::Transparent)
14909 .visible_on_hover(group_id.clone())
14910 .on_click(move |_click, cx| cx.dispatch_action(Box::new(Cancel)))
14911 .tooltip(|cx| Tooltip::for_action("Close Diagnostics", &Cancel, cx))
14912 }))
14913 })
14914 .child(
14915 IconButton::new("copy-block", IconName::Copy)
14916 .icon_color(Color::Muted)
14917 .size(ButtonSize::Compact)
14918 .style(ButtonStyle::Transparent)
14919 .visible_on_hover(group_id.clone())
14920 .on_click({
14921 let message = diagnostic.message.clone();
14922 move |_click, cx| {
14923 cx.write_to_clipboard(ClipboardItem::new_string(message.clone()))
14924 }
14925 })
14926 .tooltip(|cx| Tooltip::text("Copy diagnostic message", cx)),
14927 )
14928 };
14929
14930 let icon_size = buttons(&diagnostic)
14931 .into_any_element()
14932 .layout_as_root(AvailableSpace::min_size(), cx);
14933
14934 h_flex()
14935 .id(cx.block_id)
14936 .group(group_id.clone())
14937 .relative()
14938 .size_full()
14939 .block_mouse_down()
14940 .pl(cx.gutter_dimensions.width)
14941 .w(cx.max_width - cx.gutter_dimensions.full_width())
14942 .child(
14943 div()
14944 .flex()
14945 .w(cx.anchor_x - cx.gutter_dimensions.width - icon_size.width)
14946 .flex_shrink(),
14947 )
14948 .child(buttons(&diagnostic))
14949 .child(div().flex().flex_shrink_0().child(
14950 StyledText::new(text_without_backticks.clone()).with_highlights(
14951 &text_style,
14952 code_ranges.iter().map(|range| {
14953 (
14954 range.clone(),
14955 HighlightStyle {
14956 font_weight: Some(FontWeight::BOLD),
14957 ..Default::default()
14958 },
14959 )
14960 }),
14961 ),
14962 ))
14963 .into_any_element()
14964 })
14965}
14966
14967fn inline_completion_edit_text(
14968 current_snapshot: &BufferSnapshot,
14969 edits: &[(Range<Anchor>, String)],
14970 edit_preview: &EditPreview,
14971 include_deletions: bool,
14972 cx: &WindowContext,
14973) -> Option<HighlightedEdits> {
14974 let edits = edits
14975 .iter()
14976 .map(|(anchor, text)| {
14977 (
14978 anchor.start.text_anchor..anchor.end.text_anchor,
14979 text.clone(),
14980 )
14981 })
14982 .collect::<Vec<_>>();
14983
14984 Some(edit_preview.highlight_edits(current_snapshot, &edits, include_deletions, cx))
14985}
14986
14987pub fn highlight_diagnostic_message(
14988 diagnostic: &Diagnostic,
14989 mut max_message_rows: Option<u8>,
14990) -> (SharedString, Vec<Range<usize>>) {
14991 let mut text_without_backticks = String::new();
14992 let mut code_ranges = Vec::new();
14993
14994 if let Some(source) = &diagnostic.source {
14995 text_without_backticks.push_str(source);
14996 code_ranges.push(0..source.len());
14997 text_without_backticks.push_str(": ");
14998 }
14999
15000 let mut prev_offset = 0;
15001 let mut in_code_block = false;
15002 let has_row_limit = max_message_rows.is_some();
15003 let mut newline_indices = diagnostic
15004 .message
15005 .match_indices('\n')
15006 .filter(|_| has_row_limit)
15007 .map(|(ix, _)| ix)
15008 .fuse()
15009 .peekable();
15010
15011 for (quote_ix, _) in diagnostic
15012 .message
15013 .match_indices('`')
15014 .chain([(diagnostic.message.len(), "")])
15015 {
15016 let mut first_newline_ix = None;
15017 let mut last_newline_ix = None;
15018 while let Some(newline_ix) = newline_indices.peek() {
15019 if *newline_ix < quote_ix {
15020 if first_newline_ix.is_none() {
15021 first_newline_ix = Some(*newline_ix);
15022 }
15023 last_newline_ix = Some(*newline_ix);
15024
15025 if let Some(rows_left) = &mut max_message_rows {
15026 if *rows_left == 0 {
15027 break;
15028 } else {
15029 *rows_left -= 1;
15030 }
15031 }
15032 let _ = newline_indices.next();
15033 } else {
15034 break;
15035 }
15036 }
15037 let prev_len = text_without_backticks.len();
15038 let new_text = &diagnostic.message[prev_offset..first_newline_ix.unwrap_or(quote_ix)];
15039 text_without_backticks.push_str(new_text);
15040 if in_code_block {
15041 code_ranges.push(prev_len..text_without_backticks.len());
15042 }
15043 prev_offset = last_newline_ix.unwrap_or(quote_ix) + 1;
15044 in_code_block = !in_code_block;
15045 if first_newline_ix.map_or(false, |newline_ix| newline_ix < quote_ix) {
15046 text_without_backticks.push_str("...");
15047 break;
15048 }
15049 }
15050
15051 (text_without_backticks.into(), code_ranges)
15052}
15053
15054fn diagnostic_style(severity: DiagnosticSeverity, colors: &StatusColors) -> Hsla {
15055 match severity {
15056 DiagnosticSeverity::ERROR => colors.error,
15057 DiagnosticSeverity::WARNING => colors.warning,
15058 DiagnosticSeverity::INFORMATION => colors.info,
15059 DiagnosticSeverity::HINT => colors.info,
15060 _ => colors.ignored,
15061 }
15062}
15063
15064pub fn styled_runs_for_code_label<'a>(
15065 label: &'a CodeLabel,
15066 syntax_theme: &'a theme::SyntaxTheme,
15067) -> impl 'a + Iterator<Item = (Range<usize>, HighlightStyle)> {
15068 let fade_out = HighlightStyle {
15069 fade_out: Some(0.35),
15070 ..Default::default()
15071 };
15072
15073 let mut prev_end = label.filter_range.end;
15074 label
15075 .runs
15076 .iter()
15077 .enumerate()
15078 .flat_map(move |(ix, (range, highlight_id))| {
15079 let style = if let Some(style) = highlight_id.style(syntax_theme) {
15080 style
15081 } else {
15082 return Default::default();
15083 };
15084 let mut muted_style = style;
15085 muted_style.highlight(fade_out);
15086
15087 let mut runs = SmallVec::<[(Range<usize>, HighlightStyle); 3]>::new();
15088 if range.start >= label.filter_range.end {
15089 if range.start > prev_end {
15090 runs.push((prev_end..range.start, fade_out));
15091 }
15092 runs.push((range.clone(), muted_style));
15093 } else if range.end <= label.filter_range.end {
15094 runs.push((range.clone(), style));
15095 } else {
15096 runs.push((range.start..label.filter_range.end, style));
15097 runs.push((label.filter_range.end..range.end, muted_style));
15098 }
15099 prev_end = cmp::max(prev_end, range.end);
15100
15101 if ix + 1 == label.runs.len() && label.text.len() > prev_end {
15102 runs.push((prev_end..label.text.len(), fade_out));
15103 }
15104
15105 runs
15106 })
15107}
15108
15109pub(crate) fn split_words(text: &str) -> impl std::iter::Iterator<Item = &str> + '_ {
15110 let mut prev_index = 0;
15111 let mut prev_codepoint: Option<char> = None;
15112 text.char_indices()
15113 .chain([(text.len(), '\0')])
15114 .filter_map(move |(index, codepoint)| {
15115 let prev_codepoint = prev_codepoint.replace(codepoint)?;
15116 let is_boundary = index == text.len()
15117 || !prev_codepoint.is_uppercase() && codepoint.is_uppercase()
15118 || !prev_codepoint.is_alphanumeric() && codepoint.is_alphanumeric();
15119 if is_boundary {
15120 let chunk = &text[prev_index..index];
15121 prev_index = index;
15122 Some(chunk)
15123 } else {
15124 None
15125 }
15126 })
15127}
15128
15129pub trait RangeToAnchorExt: Sized {
15130 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor>;
15131
15132 fn to_display_points(self, snapshot: &EditorSnapshot) -> Range<DisplayPoint> {
15133 let anchor_range = self.to_anchors(&snapshot.buffer_snapshot);
15134 anchor_range.start.to_display_point(snapshot)..anchor_range.end.to_display_point(snapshot)
15135 }
15136}
15137
15138impl<T: ToOffset> RangeToAnchorExt for Range<T> {
15139 fn to_anchors(self, snapshot: &MultiBufferSnapshot) -> Range<Anchor> {
15140 let start_offset = self.start.to_offset(snapshot);
15141 let end_offset = self.end.to_offset(snapshot);
15142 if start_offset == end_offset {
15143 snapshot.anchor_before(start_offset)..snapshot.anchor_before(end_offset)
15144 } else {
15145 snapshot.anchor_after(self.start)..snapshot.anchor_before(self.end)
15146 }
15147 }
15148}
15149
15150pub trait RowExt {
15151 fn as_f32(&self) -> f32;
15152
15153 fn next_row(&self) -> Self;
15154
15155 fn previous_row(&self) -> Self;
15156
15157 fn minus(&self, other: Self) -> u32;
15158}
15159
15160impl RowExt for DisplayRow {
15161 fn as_f32(&self) -> f32 {
15162 self.0 as f32
15163 }
15164
15165 fn next_row(&self) -> Self {
15166 Self(self.0 + 1)
15167 }
15168
15169 fn previous_row(&self) -> Self {
15170 Self(self.0.saturating_sub(1))
15171 }
15172
15173 fn minus(&self, other: Self) -> u32 {
15174 self.0 - other.0
15175 }
15176}
15177
15178impl RowExt for MultiBufferRow {
15179 fn as_f32(&self) -> f32 {
15180 self.0 as f32
15181 }
15182
15183 fn next_row(&self) -> Self {
15184 Self(self.0 + 1)
15185 }
15186
15187 fn previous_row(&self) -> Self {
15188 Self(self.0.saturating_sub(1))
15189 }
15190
15191 fn minus(&self, other: Self) -> u32 {
15192 self.0 - other.0
15193 }
15194}
15195
15196trait RowRangeExt {
15197 type Row;
15198
15199 fn len(&self) -> usize;
15200
15201 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = Self::Row>;
15202}
15203
15204impl RowRangeExt for Range<MultiBufferRow> {
15205 type Row = MultiBufferRow;
15206
15207 fn len(&self) -> usize {
15208 (self.end.0 - self.start.0) as usize
15209 }
15210
15211 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = MultiBufferRow> {
15212 (self.start.0..self.end.0).map(MultiBufferRow)
15213 }
15214}
15215
15216impl RowRangeExt for Range<DisplayRow> {
15217 type Row = DisplayRow;
15218
15219 fn len(&self) -> usize {
15220 (self.end.0 - self.start.0) as usize
15221 }
15222
15223 fn iter_rows(&self) -> impl DoubleEndedIterator<Item = DisplayRow> {
15224 (self.start.0..self.end.0).map(DisplayRow)
15225 }
15226}
15227
15228fn hunk_status(hunk: &MultiBufferDiffHunk) -> DiffHunkStatus {
15229 if hunk.diff_base_byte_range.is_empty() {
15230 DiffHunkStatus::Added
15231 } else if hunk.row_range.is_empty() {
15232 DiffHunkStatus::Removed
15233 } else {
15234 DiffHunkStatus::Modified
15235 }
15236}
15237
15238/// If select range has more than one line, we
15239/// just point the cursor to range.start.
15240fn check_multiline_range(buffer: &Buffer, range: Range<usize>) -> Range<usize> {
15241 if buffer.offset_to_point(range.start).row == buffer.offset_to_point(range.end).row {
15242 range
15243 } else {
15244 range.start..range.start
15245 }
15246}
15247pub struct KillRing(ClipboardItem);
15248impl Global for KillRing {}
15249
15250const UPDATE_DEBOUNCE: Duration = Duration::from_millis(50);
15251
15252fn all_edits_insertions_or_deletions(
15253 edits: &Vec<(Range<Anchor>, String)>,
15254 snapshot: &MultiBufferSnapshot,
15255) -> bool {
15256 let mut all_insertions = true;
15257 let mut all_deletions = true;
15258
15259 for (range, new_text) in edits.iter() {
15260 let range_is_empty = range.to_offset(&snapshot).is_empty();
15261 let text_is_empty = new_text.is_empty();
15262
15263 if range_is_empty != text_is_empty {
15264 if range_is_empty {
15265 all_deletions = false;
15266 } else {
15267 all_insertions = false;
15268 }
15269 } else {
15270 return false;
15271 }
15272
15273 if !all_insertions && !all_deletions {
15274 return false;
15275 }
15276 }
15277 all_insertions || all_deletions
15278}